src/generic/grid.cpp

   1 ///////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/grid.cpp
   3 // Purpose:     wxGrid and related classes
   4 // Author:      Michael Bedward (based on code by Julian Smart, Robin Dunn)
   5 // Modified by: Robin Dunn, Vadim Zeitlin, Santiago Palacios
   6 // Created:     1/08/1999
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Michael Bedward (mbedward@ozemail.com.au)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 /*
  13     TODO:
  14
  15     - Replace use of wxINVERT with wxOverlay
  16     - Make Begin/EndBatch() the same as the generic Freeze/Thaw()
  17     - Review the column reordering code, it's a mess.
  18     - Implement row reordering after dealing with the columns.
  19  */
  20
  21 // For compilers that support precompilation, includes "wx/wx.h".
  22 #include "wx/wxprec.h"
  23
  24 #ifdef __BORLANDC__
  25     #pragma hdrstop
  26 #endif
  27
  28 #if wxUSE_GRID
  29
  30 #include "wx/grid.h"
  31
  32 #ifndef WX_PRECOMP
  33     #include "wx/utils.h"
  34     #include "wx/dcclient.h"
  35     #include "wx/settings.h"
  36     #include "wx/log.h"
  37     #include "wx/textctrl.h"
  38     #include "wx/checkbox.h"
  39     #include "wx/combobox.h"
  40     #include "wx/valtext.h"
  41     #include "wx/intl.h"
  42     #include "wx/math.h"
  43     #include "wx/listbox.h"
  44 #endif
  45
  46 #include "wx/textfile.h"
  47 #include "wx/spinctrl.h"
  48 #include "wx/tokenzr.h"
  49 #include "wx/renderer.h"
  50 #include "wx/headerctrl.h"
  51 #include "wx/hashset.h"
  52
  53 #include "wx/generic/gridsel.h"
  54 #include "wx/generic/gridctrl.h"
  55 #include "wx/generic/grideditors.h"
  56 #include "wx/generic/private/grid.h"
  57
  58 const char wxGridNameStr[] = "grid";
  59
  60 #if defined(__WXMOTIF__)
  61     #define WXUNUSED_MOTIF(identifier)  WXUNUSED(identifier)
  62 #else
  63     #define WXUNUSED_MOTIF(identifier)  identifier
  64 #endif
  65
  66 #if defined(__WXGTK__)
  67     #define WXUNUSED_GTK(identifier)    WXUNUSED(identifier)
  68 #else
  69     #define WXUNUSED_GTK(identifier)    identifier
  70 #endif
  71
  72 // Required for wxIs... functions
  73 #include <ctype.h>
  74
  75 WX_DECLARE_HASH_SET_WITH_DECL_PTR(int, ::wxIntegerHash, ::wxIntegerEqual,
  76                                   wxGridFixedIndicesSet, class WXDLLIMPEXP_ADV);
  77
  78
  79 // ----------------------------------------------------------------------------
  80 // globals
  81 // ----------------------------------------------------------------------------
  82
  83 namespace
  84 {
  85
  86 //#define DEBUG_ATTR_CACHE
  87 #ifdef DEBUG_ATTR_CACHE
  88     static size_t gs_nAttrCacheHits = 0;
  89     static size_t gs_nAttrCacheMisses = 0;
  90 #endif
  91
  92 // this struct simply combines together the default header renderers
  93 //
  94 // as the renderers ctors are trivial, there is no problem with making them
  95 // globals
  96 struct DefaultHeaderRenderers
  97 {
  98     wxGridColumnHeaderRendererDefault colRenderer;
  99     wxGridRowHeaderRendererDefault rowRenderer;
 100     wxGridCornerHeaderRendererDefault cornerRenderer;
 101 } gs_defaultHeaderRenderers;
 102
 103 } // anonymous namespace
 104
 105 // ----------------------------------------------------------------------------
 106 // constants
 107 // ----------------------------------------------------------------------------
 108
 109 wxGridCellCoords wxGridNoCellCoords( -1, -1 );
 110 wxRect wxGridNoCellRect( -1, -1, -1, -1 );
 111
 112 namespace
 113 {
 114
 115 // scroll line size
 116 const size_t GRID_SCROLL_LINE_X = 15;
 117 const size_t GRID_SCROLL_LINE_Y = GRID_SCROLL_LINE_X;
 118
 119 // the size of hash tables used a bit everywhere (the max number of elements
 120 // in these hash tables is the number of rows/columns)
 121 const int GRID_HASH_SIZE = 100;
 122
 123 // the minimal distance in pixels the mouse needs to move to start a drag
 124 // operation
 125 const int DRAG_SENSITIVITY = 3;
 126
 127 } // anonymous namespace
 128
 129 #include "wx/arrimpl.cpp"
 130
 131 WX_DEFINE_OBJARRAY(wxGridCellCoordsArray)
 132 WX_DEFINE_OBJARRAY(wxGridCellWithAttrArray)
 133
 134 // ----------------------------------------------------------------------------
 135 // events
 136 // ----------------------------------------------------------------------------
 137
 138 wxDEFINE_EVENT( wxEVT_GRID_CELL_LEFT_CLICK, wxGridEvent );
 139 wxDEFINE_EVENT( wxEVT_GRID_CELL_RIGHT_CLICK, wxGridEvent );
 140 wxDEFINE_EVENT( wxEVT_GRID_CELL_LEFT_DCLICK, wxGridEvent );
 141 wxDEFINE_EVENT( wxEVT_GRID_CELL_RIGHT_DCLICK, wxGridEvent );
 142 wxDEFINE_EVENT( wxEVT_GRID_CELL_BEGIN_DRAG, wxGridEvent );
 143 wxDEFINE_EVENT( wxEVT_GRID_LABEL_LEFT_CLICK, wxGridEvent );
 144 wxDEFINE_EVENT( wxEVT_GRID_LABEL_RIGHT_CLICK, wxGridEvent );
 145 wxDEFINE_EVENT( wxEVT_GRID_LABEL_LEFT_DCLICK, wxGridEvent );
 146 wxDEFINE_EVENT( wxEVT_GRID_LABEL_RIGHT_DCLICK, wxGridEvent );
 147 wxDEFINE_EVENT( wxEVT_GRID_ROW_SIZE, wxGridSizeEvent );
 148 wxDEFINE_EVENT( wxEVT_GRID_COL_SIZE, wxGridSizeEvent );
 149 wxDEFINE_EVENT( wxEVT_GRID_COL_MOVE, wxGridEvent );
 150 wxDEFINE_EVENT( wxEVT_GRID_COL_SORT, wxGridEvent );
 151 wxDEFINE_EVENT( wxEVT_GRID_RANGE_SELECT, wxGridRangeSelectEvent );
 152 wxDEFINE_EVENT( wxEVT_GRID_CELL_CHANGING, wxGridEvent );
 153 wxDEFINE_EVENT( wxEVT_GRID_CELL_CHANGED, wxGridEvent );
 154 wxDEFINE_EVENT( wxEVT_GRID_SELECT_CELL, wxGridEvent );
 155 wxDEFINE_EVENT( wxEVT_GRID_EDITOR_SHOWN, wxGridEvent );
 156 wxDEFINE_EVENT( wxEVT_GRID_EDITOR_HIDDEN, wxGridEvent );
 157 wxDEFINE_EVENT( wxEVT_GRID_EDITOR_CREATED, wxGridEditorCreatedEvent );
 158
 159 // ----------------------------------------------------------------------------
 160 // private helpers
 161 // ----------------------------------------------------------------------------
 162
 163 namespace
 164 {
 165
 166     // ensure that first is less or equal to second, swapping the values if
 167     // necessary
 168     void EnsureFirstLessThanSecond(int& first, int& second)
 169     {
 170         if ( first > second )
 171             wxSwap(first, second);
 172     }
 173
 174 } // anonymous namespace
 175
 176 // ============================================================================
 177 // implementation
 178 // ============================================================================
 179
 180 IMPLEMENT_ABSTRACT_CLASS(wxGridCellEditorEvtHandler, wxEvtHandler)
 181
 182 BEGIN_EVENT_TABLE( wxGridCellEditorEvtHandler, wxEvtHandler )
 183     EVT_KILL_FOCUS( wxGridCellEditorEvtHandler::OnKillFocus )
 184     EVT_KEY_DOWN( wxGridCellEditorEvtHandler::OnKeyDown )
 185     EVT_CHAR( wxGridCellEditorEvtHandler::OnChar )
 186 END_EVENT_TABLE()
 187
 188 BEGIN_EVENT_TABLE(wxGridHeaderCtrl, wxHeaderCtrl)
 189     EVT_HEADER_CLICK(wxID_ANY, wxGridHeaderCtrl::OnClick)
 190     EVT_HEADER_DCLICK(wxID_ANY, wxGridHeaderCtrl::OnDoubleClick)
 191     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxGridHeaderCtrl::OnRightClick)
 192
 193     EVT_HEADER_BEGIN_RESIZE(wxID_ANY, wxGridHeaderCtrl::OnBeginResize)
 194     EVT_HEADER_RESIZING(wxID_ANY, wxGridHeaderCtrl::OnResizing)
 195     EVT_HEADER_END_RESIZE(wxID_ANY, wxGridHeaderCtrl::OnEndResize)
 196
 197     EVT_HEADER_BEGIN_REORDER(wxID_ANY, wxGridHeaderCtrl::OnBeginReorder)
 198     EVT_HEADER_END_REORDER(wxID_ANY, wxGridHeaderCtrl::OnEndReorder)
 199 END_EVENT_TABLE()
 200
 201 wxGridOperations& wxGridRowOperations::Dual() const
 202 {
 203     static wxGridColumnOperations s_colOper;
 204
 205     return s_colOper;
 206 }
 207
 208 wxGridOperations& wxGridColumnOperations::Dual() const
 209 {
 210     static wxGridRowOperations s_rowOper;
 211
 212     return s_rowOper;
 213 }
 214
 215 // ----------------------------------------------------------------------------
 216 // wxGridCellWorker is an (almost) empty common base class for
 217 // wxGridCellRenderer and wxGridCellEditor managing ref counting
 218 // ----------------------------------------------------------------------------
 219
 220 void wxGridCellWorker::SetParameters(const wxString& WXUNUSED(params))
 221 {
 222     // nothing to do
 223 }
 224
 225 wxGridCellWorker::~wxGridCellWorker()
 226 {
 227 }
 228
 229 // ----------------------------------------------------------------------------
 230 // wxGridHeaderLabelsRenderer and related classes
 231 // ----------------------------------------------------------------------------
 232
 233 void wxGridHeaderLabelsRenderer::DrawLabel(const wxGrid& grid,
 234                                            wxDC& dc,
 235                                            const wxString& value,
 236                                            const wxRect& rect,
 237                                            int horizAlign,
 238                                            int vertAlign,
 239                                            int textOrientation) const
 240 {
 241     dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 242     dc.SetTextForeground(grid.GetLabelTextColour());
 243     dc.SetFont(grid.GetLabelFont());
 244     grid.DrawTextRectangle(dc, value, rect, horizAlign, vertAlign, textOrientation);
 245 }
 246
 247
 248 void wxGridRowHeaderRendererDefault::DrawBorder(const wxGrid& WXUNUSED(grid),
 249                                                 wxDC& dc,
 250                                                 wxRect& rect) const
 251 {
 252     dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)));
 253     dc.DrawLine(rect.GetRight(), rect.GetTop(),
 254                 rect.GetRight(), rect.GetBottom());
 255     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 256                 rect.GetLeft(), rect.GetBottom());
 257     dc.DrawLine(rect.GetLeft(), rect.GetBottom(),
 258                 rect.GetRight() + 1, rect.GetBottom());
 259
 260     dc.SetPen(*wxWHITE_PEN);
 261     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop(),
 262                 rect.GetLeft() + 1, rect.GetBottom());
 263     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop(),
 264                 rect.GetRight(), rect.GetTop());
 265
 266     rect.Deflate(2);
 267 }
 268
 269 void wxGridColumnHeaderRendererDefault::DrawBorder(const wxGrid& WXUNUSED(grid),
 270                                                    wxDC& dc,
 271                                                    wxRect& rect) const
 272 {
 273     dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)));
 274     dc.DrawLine(rect.GetRight(), rect.GetTop(),
 275                 rect.GetRight(), rect.GetBottom());
 276     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 277                 rect.GetRight(), rect.GetTop());
 278     dc.DrawLine(rect.GetLeft(), rect.GetBottom(),
 279                 rect.GetRight() + 1, rect.GetBottom());
 280
 281     dc.SetPen(*wxWHITE_PEN);
 282     dc.DrawLine(rect.GetLeft(), rect.GetTop() + 1,
 283                 rect.GetLeft(), rect.GetBottom());
 284     dc.DrawLine(rect.GetLeft(), rect.GetTop() + 1,
 285                 rect.GetRight(), rect.GetTop() + 1);
 286
 287     rect.Deflate(2);
 288 }
 289
 290 void wxGridCornerHeaderRendererDefault::DrawBorder(const wxGrid& WXUNUSED(grid),
 291                                                    wxDC& dc,
 292                                                    wxRect& rect) const
 293 {
 294     dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)));
 295     dc.DrawLine(rect.GetRight() - 1, rect.GetBottom() - 1,
 296                 rect.GetRight() - 1, rect.GetTop());
 297     dc.DrawLine(rect.GetRight() - 1, rect.GetBottom() - 1,
 298                 rect.GetLeft(), rect.GetBottom() - 1);
 299     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 300                 rect.GetRight(), rect.GetTop());
 301     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 302                 rect.GetLeft(), rect.GetBottom());
 303
 304     dc.SetPen(*wxWHITE_PEN);
 305     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop() + 1,
 306                 rect.GetRight() - 1, rect.GetTop() + 1);
 307     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop() + 1,
 308                 rect.GetLeft() + 1, rect.GetBottom() - 1);
 309
 310     rect.Deflate(2);
 311 }
 312
 313 // ----------------------------------------------------------------------------
 314 // wxGridCellAttr
 315 // ----------------------------------------------------------------------------
 316
 317 void wxGridCellAttr::Init(wxGridCellAttr *attrDefault)
 318 {
 319     m_isReadOnly = Unset;
 320
 321     m_renderer = NULL;
 322     m_editor = NULL;
 323
 324     m_attrkind = wxGridCellAttr::Cell;
 325
 326     m_sizeRows = m_sizeCols = 1;
 327     m_overflow = UnsetOverflow;
 328
 329     SetDefAttr(attrDefault);
 330 }
 331
 332 wxGridCellAttr *wxGridCellAttr::Clone() const
 333 {
 334     wxGridCellAttr *attr = new wxGridCellAttr(m_defGridAttr);
 335
 336     if ( HasTextColour() )
 337         attr->SetTextColour(GetTextColour());
 338     if ( HasBackgroundColour() )
 339         attr->SetBackgroundColour(GetBackgroundColour());
 340     if ( HasFont() )
 341         attr->SetFont(GetFont());
 342     if ( HasAlignment() )
 343         attr->SetAlignment(m_hAlign, m_vAlign);
 344
 345     attr->SetSize( m_sizeRows, m_sizeCols );
 346
 347     if ( m_renderer )
 348     {
 349         attr->SetRenderer(m_renderer);
 350         m_renderer->IncRef();
 351     }
 352     if ( m_editor )
 353     {
 354         attr->SetEditor(m_editor);
 355         m_editor->IncRef();
 356     }
 357
 358     if ( IsReadOnly() )
 359         attr->SetReadOnly();
 360
 361     attr->SetOverflow( m_overflow == Overflow );
 362     attr->SetKind( m_attrkind );
 363
 364     return attr;
 365 }
 366
 367 void wxGridCellAttr::MergeWith(wxGridCellAttr *mergefrom)
 368 {
 369     if ( !HasTextColour() && mergefrom->HasTextColour() )
 370         SetTextColour(mergefrom->GetTextColour());
 371     if ( !HasBackgroundColour() && mergefrom->HasBackgroundColour() )
 372         SetBackgroundColour(mergefrom->GetBackgroundColour());
 373     if ( !HasFont() && mergefrom->HasFont() )
 374         SetFont(mergefrom->GetFont());
 375     if ( !HasAlignment() && mergefrom->HasAlignment() )
 376     {
 377         int hAlign, vAlign;
 378         mergefrom->GetAlignment( &hAlign, &vAlign);
 379         SetAlignment(hAlign, vAlign);
 380     }
 381     if ( !HasSize() && mergefrom->HasSize() )
 382         mergefrom->GetSize( &m_sizeRows, &m_sizeCols );
 383
 384     // Directly access member functions as GetRender/Editor don't just return
 385     // m_renderer/m_editor
 386     //
 387     // Maybe add support for merge of Render and Editor?
 388     if (!HasRenderer() && mergefrom->HasRenderer() )
 389     {
 390         m_renderer = mergefrom->m_renderer;
 391         m_renderer->IncRef();
 392     }
 393     if ( !HasEditor() && mergefrom->HasEditor() )
 394     {
 395         m_editor =  mergefrom->m_editor;
 396         m_editor->IncRef();
 397     }
 398     if ( !HasReadWriteMode() && mergefrom->HasReadWriteMode() )
 399         SetReadOnly(mergefrom->IsReadOnly());
 400
 401     if (!HasOverflowMode() && mergefrom->HasOverflowMode() )
 402         SetOverflow(mergefrom->GetOverflow());
 403
 404     SetDefAttr(mergefrom->m_defGridAttr);
 405 }
 406
 407 void wxGridCellAttr::SetSize(int num_rows, int num_cols)
 408 {
 409     // The size of a cell is normally 1,1
 410
 411     // If this cell is larger (2,2) then this is the top left cell
 412     // the other cells that will be covered (lower right cells) must be
 413     // set to negative or zero values such that
 414     // row + num_rows of the covered cell points to the larger cell (this cell)
 415     // same goes for the col + num_cols.
 416
 417     // Size of 0,0 is NOT valid, neither is <=0 and any positive value
 418
 419     wxASSERT_MSG( (!((num_rows > 0) && (num_cols <= 0)) ||
 420                   !((num_rows <= 0) && (num_cols > 0)) ||
 421                   !((num_rows == 0) && (num_cols == 0))),
 422                   wxT("wxGridCellAttr::SetSize only takes two postive values or negative/zero values"));
 423
 424     m_sizeRows = num_rows;
 425     m_sizeCols = num_cols;
 426 }
 427
 428 const wxColour& wxGridCellAttr::GetTextColour() const
 429 {
 430     if (HasTextColour())
 431     {
 432         return m_colText;
 433     }
 434     else if (m_defGridAttr && m_defGridAttr != this)
 435     {
 436         return m_defGridAttr->GetTextColour();
 437     }
 438     else
 439     {
 440         wxFAIL_MSG(wxT("Missing default cell attribute"));
 441         return wxNullColour;
 442     }
 443 }
 444
 445 const wxColour& wxGridCellAttr::GetBackgroundColour() const
 446 {
 447     if (HasBackgroundColour())
 448     {
 449         return m_colBack;
 450     }
 451     else if (m_defGridAttr && m_defGridAttr != this)
 452     {
 453         return m_defGridAttr->GetBackgroundColour();
 454     }
 455     else
 456     {
 457         wxFAIL_MSG(wxT("Missing default cell attribute"));
 458         return wxNullColour;
 459     }
 460 }
 461
 462 const wxFont& wxGridCellAttr::GetFont() const
 463 {
 464     if (HasFont())
 465     {
 466         return m_font;
 467     }
 468     else if (m_defGridAttr && m_defGridAttr != this)
 469     {
 470         return m_defGridAttr->GetFont();
 471     }
 472     else
 473     {
 474         wxFAIL_MSG(wxT("Missing default cell attribute"));
 475         return wxNullFont;
 476     }
 477 }
 478
 479 void wxGridCellAttr::GetAlignment(int *hAlign, int *vAlign) const
 480 {
 481     if (HasAlignment())
 482     {
 483         if ( hAlign )
 484             *hAlign = m_hAlign;
 485         if ( vAlign )
 486             *vAlign = m_vAlign;
 487     }
 488     else if (m_defGridAttr && m_defGridAttr != this)
 489     {
 490         m_defGridAttr->GetAlignment(hAlign, vAlign);
 491     }
 492     else
 493     {
 494         wxFAIL_MSG(wxT("Missing default cell attribute"));
 495     }
 496 }
 497
 498 void wxGridCellAttr::GetNonDefaultAlignment(int *hAlign, int *vAlign) const
 499 {
 500     if ( hAlign && m_hAlign != wxALIGN_INVALID )
 501         *hAlign = m_hAlign;
 502
 503     if ( vAlign && m_vAlign != wxALIGN_INVALID )
 504         *vAlign = m_vAlign;
 505 }
 506
 507 void wxGridCellAttr::GetSize( int *num_rows, int *num_cols ) const
 508 {
 509     if ( num_rows )
 510         *num_rows = m_sizeRows;
 511     if ( num_cols )
 512         *num_cols = m_sizeCols;
 513 }
 514
 515 // GetRenderer and GetEditor use a slightly different decision path about
 516 // which attribute to use.  If a non-default attr object has one then it is
 517 // used, otherwise the default editor or renderer is fetched from the grid and
 518 // used.  It should be the default for the data type of the cell.  If it is
 519 // NULL (because the table has a type that the grid does not have in its
 520 // registry), then the grid's default editor or renderer is used.
 521
 522 wxGridCellRenderer* wxGridCellAttr::GetRenderer(const wxGrid* grid, int row, int col) const
 523 {
 524     wxGridCellRenderer *renderer = NULL;
 525
 526     if ( m_renderer && this != m_defGridAttr )
 527     {
 528         // use the cells renderer if it has one
 529         renderer = m_renderer;
 530         renderer->IncRef();
 531     }
 532     else // no non-default cell renderer
 533     {
 534         // get default renderer for the data type
 535         if ( grid )
 536         {
 537             // GetDefaultRendererForCell() will do IncRef() for us
 538             renderer = grid->GetDefaultRendererForCell(row, col);
 539         }
 540
 541         if ( renderer == NULL )
 542         {
 543             if ( (m_defGridAttr != NULL) && (m_defGridAttr != this) )
 544             {
 545                 // if we still don't have one then use the grid default
 546                 // (no need for IncRef() here neither)
 547                 renderer = m_defGridAttr->GetRenderer(NULL, 0, 0);
 548             }
 549             else // default grid attr
 550             {
 551                 // use m_renderer which we had decided not to use initially
 552                 renderer = m_renderer;
 553                 if ( renderer )
 554                     renderer->IncRef();
 555             }
 556         }
 557     }
 558
 559     // we're supposed to always find something
 560     wxASSERT_MSG(renderer, wxT("Missing default cell renderer"));
 561
 562     return renderer;
 563 }
 564
 565 // same as above, except for s/renderer/editor/g
 566 wxGridCellEditor* wxGridCellAttr::GetEditor(const wxGrid* grid, int row, int col) const
 567 {
 568     wxGridCellEditor *editor = NULL;
 569
 570     if ( m_editor && this != m_defGridAttr )
 571     {
 572         // use the cells editor if it has one
 573         editor = m_editor;
 574         editor->IncRef();
 575     }
 576     else // no non default cell editor
 577     {
 578         // get default editor for the data type
 579         if ( grid )
 580         {
 581             // GetDefaultEditorForCell() will do IncRef() for us
 582             editor = grid->GetDefaultEditorForCell(row, col);
 583         }
 584
 585         if ( editor == NULL )
 586         {
 587             if ( (m_defGridAttr != NULL) && (m_defGridAttr != this) )
 588             {
 589                 // if we still don't have one then use the grid default
 590                 // (no need for IncRef() here neither)
 591                 editor = m_defGridAttr->GetEditor(NULL, 0, 0);
 592             }
 593             else // default grid attr
 594             {
 595                 // use m_editor which we had decided not to use initially
 596                 editor = m_editor;
 597                 if ( editor )
 598                     editor->IncRef();
 599             }
 600         }
 601     }
 602
 603     // we're supposed to always find something
 604     wxASSERT_MSG(editor, wxT("Missing default cell editor"));
 605
 606     return editor;
 607 }
 608
 609 // ----------------------------------------------------------------------------
 610 // wxGridCellAttrData
 611 // ----------------------------------------------------------------------------
 612
 613 void wxGridCellAttrData::SetAttr(wxGridCellAttr *attr, int row, int col)
 614 {
 615     // Note: contrary to wxGridRowOrColAttrData::SetAttr, we must not
 616     //       touch attribute's reference counting explicitly, since this
 617     //       is managed by class wxGridCellWithAttr
 618     int n = FindIndex(row, col);
 619     if ( n == wxNOT_FOUND )
 620     {
 621         if ( attr )
 622         {
 623             // add the attribute
 624             m_attrs.Add(new wxGridCellWithAttr(row, col, attr));
 625         }
 626         //else: nothing to do
 627     }
 628     else // we already have an attribute for this cell
 629     {
 630         if ( attr )
 631         {
 632             // change the attribute
 633             m_attrs[(size_t)n].ChangeAttr(attr);
 634         }
 635         else
 636         {
 637             // remove this attribute
 638             m_attrs.RemoveAt((size_t)n);
 639         }
 640     }
 641 }
 642
 643 wxGridCellAttr *wxGridCellAttrData::GetAttr(int row, int col) const
 644 {
 645     wxGridCellAttr *attr = NULL;
 646
 647     int n = FindIndex(row, col);
 648     if ( n != wxNOT_FOUND )
 649     {
 650         attr = m_attrs[(size_t)n].attr;
 651         attr->IncRef();
 652     }
 653
 654     return attr;
 655 }
 656
 657 void wxGridCellAttrData::UpdateAttrRows( size_t pos, int numRows )
 658 {
 659     size_t count = m_attrs.GetCount();
 660     for ( size_t n = 0; n < count; n++ )
 661     {
 662         wxGridCellCoords& coords = m_attrs[n].coords;
 663         wxCoord row = coords.GetRow();
 664         if ((size_t)row >= pos)
 665         {
 666             if (numRows > 0)
 667             {
 668                 // If rows inserted, include row counter where necessary
 669                 coords.SetRow(row + numRows);
 670             }
 671             else if (numRows < 0)
 672             {
 673                 // If rows deleted ...
 674                 if ((size_t)row >= pos - numRows)
 675                 {
 676                     // ...either decrement row counter (if row still exists)...
 677                     coords.SetRow(row + numRows);
 678                 }
 679                 else
 680                 {
 681                     // ...or remove the attribute
 682                     m_attrs.RemoveAt(n);
 683                     n--;
 684                     count--;
 685                 }
 686             }
 687         }
 688     }
 689 }
 690
 691 void wxGridCellAttrData::UpdateAttrCols( size_t pos, int numCols )
 692 {
 693     size_t count = m_attrs.GetCount();
 694     for ( size_t n = 0; n < count; n++ )
 695     {
 696         wxGridCellCoords& coords = m_attrs[n].coords;
 697         wxCoord col = coords.GetCol();
 698         if ( (size_t)col >= pos )
 699         {
 700             if ( numCols > 0 )
 701             {
 702                 // If rows inserted, include row counter where necessary
 703                 coords.SetCol(col + numCols);
 704             }
 705             else if (numCols < 0)
 706             {
 707                 // If rows deleted ...
 708                 if ((size_t)col >= pos - numCols)
 709                 {
 710                     // ...either decrement row counter (if row still exists)...
 711                     coords.SetCol(col + numCols);
 712                 }
 713                 else
 714                 {
 715                     // ...or remove the attribute
 716                     m_attrs.RemoveAt(n);
 717                     n--;
 718                     count--;
 719                 }
 720             }
 721         }
 722     }
 723 }
 724
 725 int wxGridCellAttrData::FindIndex(int row, int col) const
 726 {
 727     size_t count = m_attrs.GetCount();
 728     for ( size_t n = 0; n < count; n++ )
 729     {
 730         const wxGridCellCoords& coords = m_attrs[n].coords;
 731         if ( (coords.GetRow() == row) && (coords.GetCol() == col) )
 732         {
 733             return n;
 734         }
 735     }
 736
 737     return wxNOT_FOUND;
 738 }
 739
 740 // ----------------------------------------------------------------------------
 741 // wxGridRowOrColAttrData
 742 // ----------------------------------------------------------------------------
 743
 744 wxGridRowOrColAttrData::~wxGridRowOrColAttrData()
 745 {
 746     size_t count = m_attrs.GetCount();
 747     for ( size_t n = 0; n < count; n++ )
 748     {
 749         m_attrs[n]->DecRef();
 750     }
 751 }
 752
 753 wxGridCellAttr *wxGridRowOrColAttrData::GetAttr(int rowOrCol) const
 754 {
 755     wxGridCellAttr *attr = NULL;
 756
 757     int n = m_rowsOrCols.Index(rowOrCol);
 758     if ( n != wxNOT_FOUND )
 759     {
 760         attr = m_attrs[(size_t)n];
 761         attr->IncRef();
 762     }
 763
 764     return attr;
 765 }
 766
 767 void wxGridRowOrColAttrData::SetAttr(wxGridCellAttr *attr, int rowOrCol)
 768 {
 769     int i = m_rowsOrCols.Index(rowOrCol);
 770     if ( i == wxNOT_FOUND )
 771     {
 772         if ( attr )
 773         {
 774             // store the new attribute, taking its ownership
 775             m_rowsOrCols.Add(rowOrCol);
 776             m_attrs.Add(attr);
 777         }
 778         // nothing to remove
 779     }
 780     else // we have an attribute for this row or column
 781     {
 782         size_t n = (size_t)i;
 783
 784         // notice that this code works correctly even when the old attribute is
 785         // the same as the new one: as we own of it, we must call DecRef() on
 786         // it in any case and this won't result in destruction of the new
 787         // attribute if it's the same as old one because it must have ref count
 788         // of at least 2 to be passed to us while we keep a reference to it too
 789         m_attrs[n]->DecRef();
 790
 791         if ( attr )
 792         {
 793             // replace the attribute with the new one
 794             m_attrs[n] = attr;
 795         }
 796         else // remove the attribute
 797         {
 798             m_rowsOrCols.RemoveAt(n);
 799             m_attrs.RemoveAt(n);
 800         }
 801     }
 802 }
 803
 804 void wxGridRowOrColAttrData::UpdateAttrRowsOrCols( size_t pos, int numRowsOrCols )
 805 {
 806     size_t count = m_attrs.GetCount();
 807     for ( size_t n = 0; n < count; n++ )
 808     {
 809         int & rowOrCol = m_rowsOrCols[n];
 810         if ( (size_t)rowOrCol >= pos )
 811         {
 812             if ( numRowsOrCols > 0 )
 813             {
 814                 // If rows inserted, include row counter where necessary
 815                 rowOrCol += numRowsOrCols;
 816             }
 817             else if ( numRowsOrCols < 0)
 818             {
 819                 // If rows deleted, either decrement row counter (if row still exists)
 820                 if ((size_t)rowOrCol >= pos - numRowsOrCols)
 821                     rowOrCol += numRowsOrCols;
 822                 else
 823                 {
 824                     m_rowsOrCols.RemoveAt(n);
 825                     m_attrs[n]->DecRef();
 826                     m_attrs.RemoveAt(n);
 827                     n--;
 828                     count--;
 829                 }
 830             }
 831         }
 832     }
 833 }
 834
 835 // ----------------------------------------------------------------------------
 836 // wxGridCellAttrProvider
 837 // ----------------------------------------------------------------------------
 838
 839 wxGridCellAttrProvider::wxGridCellAttrProvider()
 840 {
 841     m_data = NULL;
 842 }
 843
 844 wxGridCellAttrProvider::~wxGridCellAttrProvider()
 845 {
 846     delete m_data;
 847 }
 848
 849 void wxGridCellAttrProvider::InitData()
 850 {
 851     m_data = new wxGridCellAttrProviderData;
 852 }
 853
 854 wxGridCellAttr *wxGridCellAttrProvider::GetAttr(int row, int col,
 855                                                 wxGridCellAttr::wxAttrKind  kind ) const
 856 {
 857     wxGridCellAttr *attr = NULL;
 858     if ( m_data )
 859     {
 860         switch (kind)
 861         {
 862             case (wxGridCellAttr::Any):
 863                 // Get cached merge attributes.
 864                 // Currently not used as no cache implemented as not mutable
 865                 // attr = m_data->m_mergeAttr.GetAttr(row, col);
 866                 if (!attr)
 867                 {
 868                     // Basically implement old version.
 869                     // Also check merge cache, so we don't have to re-merge every time..
 870                     wxGridCellAttr *attrcell = m_data->m_cellAttrs.GetAttr(row, col);
 871                     wxGridCellAttr *attrrow = m_data->m_rowAttrs.GetAttr(row);
 872                     wxGridCellAttr *attrcol = m_data->m_colAttrs.GetAttr(col);
 873
 874                     if ((attrcell != attrrow) && (attrrow != attrcol) && (attrcell != attrcol))
 875                     {
 876                         // Two or more are non NULL
 877                         attr = new wxGridCellAttr;
 878                         attr->SetKind(wxGridCellAttr::Merged);
 879
 880                         // Order is important..
 881                         if (attrcell)
 882                         {
 883                             attr->MergeWith(attrcell);
 884                             attrcell->DecRef();
 885                         }
 886                         if (attrcol)
 887                         {
 888                             attr->MergeWith(attrcol);
 889                             attrcol->DecRef();
 890                         }
 891                         if (attrrow)
 892                         {
 893                             attr->MergeWith(attrrow);
 894                             attrrow->DecRef();
 895                         }
 896
 897                         // store merge attr if cache implemented
 898                         //attr->IncRef();
 899                         //m_data->m_mergeAttr.SetAttr(attr, row, col);
 900                     }
 901                     else
 902                     {
 903                         // one or none is non null return it or null.
 904                         if (attrrow)
 905                             attr = attrrow;
 906                         if (attrcol)
 907                         {
 908                             if (attr)
 909                                 attr->DecRef();
 910                             attr = attrcol;
 911                         }
 912                         if (attrcell)
 913                         {
 914                             if (attr)
 915                                 attr->DecRef();
 916                             attr = attrcell;
 917                         }
 918                     }
 919                 }
 920                 break;
 921
 922             case (wxGridCellAttr::Cell):
 923                 attr = m_data->m_cellAttrs.GetAttr(row, col);
 924                 break;
 925
 926             case (wxGridCellAttr::Col):
 927                 attr = m_data->m_colAttrs.GetAttr(col);
 928                 break;
 929
 930             case (wxGridCellAttr::Row):
 931                 attr = m_data->m_rowAttrs.GetAttr(row);
 932                 break;
 933
 934             default:
 935                 // unused as yet...
 936                 // (wxGridCellAttr::Default):
 937                 // (wxGridCellAttr::Merged):
 938                 break;
 939         }
 940     }
 941
 942     return attr;
 943 }
 944
 945 void wxGridCellAttrProvider::SetAttr(wxGridCellAttr *attr,
 946                                      int row, int col)
 947 {
 948     if ( !m_data )
 949         InitData();
 950
 951     m_data->m_cellAttrs.SetAttr(attr, row, col);
 952 }
 953
 954 void wxGridCellAttrProvider::SetRowAttr(wxGridCellAttr *attr, int row)
 955 {
 956     if ( !m_data )
 957         InitData();
 958
 959     m_data->m_rowAttrs.SetAttr(attr, row);
 960 }
 961
 962 void wxGridCellAttrProvider::SetColAttr(wxGridCellAttr *attr, int col)
 963 {
 964     if ( !m_data )
 965         InitData();
 966
 967     m_data->m_colAttrs.SetAttr(attr, col);
 968 }
 969
 970 void wxGridCellAttrProvider::UpdateAttrRows( size_t pos, int numRows )
 971 {
 972     if ( m_data )
 973     {
 974         m_data->m_cellAttrs.UpdateAttrRows( pos, numRows );
 975
 976         m_data->m_rowAttrs.UpdateAttrRowsOrCols( pos, numRows );
 977     }
 978 }
 979
 980 void wxGridCellAttrProvider::UpdateAttrCols( size_t pos, int numCols )
 981 {
 982     if ( m_data )
 983     {
 984         m_data->m_cellAttrs.UpdateAttrCols( pos, numCols );
 985
 986         m_data->m_colAttrs.UpdateAttrRowsOrCols( pos, numCols );
 987     }
 988 }
 989
 990 const wxGridColumnHeaderRenderer&
 991 wxGridCellAttrProvider::GetColumnHeaderRenderer(int WXUNUSED(col))
 992 {
 993     return gs_defaultHeaderRenderers.colRenderer;
 994 }
 995
 996 const wxGridRowHeaderRenderer&
 997 wxGridCellAttrProvider::GetRowHeaderRenderer(int WXUNUSED(row))
 998 {
 999     return gs_defaultHeaderRenderers.rowRenderer;
1000 }
1001
1002 const wxGridCornerHeaderRenderer& wxGridCellAttrProvider::GetCornerRenderer()
1003 {
1004     return gs_defaultHeaderRenderers.cornerRenderer;
1005 }
1006
1007 // ----------------------------------------------------------------------------
1008 // wxGridTableBase
1009 // ----------------------------------------------------------------------------
1010
1011 IMPLEMENT_ABSTRACT_CLASS( wxGridTableBase, wxObject )
1012
1013 wxGridTableBase::wxGridTableBase()
1014 {
1015     m_view = NULL;
1016     m_attrProvider = NULL;
1017 }
1018
1019 wxGridTableBase::~wxGridTableBase()
1020 {
1021     delete m_attrProvider;
1022 }
1023
1024 void wxGridTableBase::SetAttrProvider(wxGridCellAttrProvider *attrProvider)
1025 {
1026     delete m_attrProvider;
1027     m_attrProvider = attrProvider;
1028 }
1029
1030 bool wxGridTableBase::CanHaveAttributes()
1031 {
1032     if ( ! GetAttrProvider() )
1033     {
1034         // use the default attr provider by default
1035         SetAttrProvider(new wxGridCellAttrProvider);
1036     }
1037
1038     return true;
1039 }
1040
1041 wxGridCellAttr *wxGridTableBase::GetAttr(int row, int col, wxGridCellAttr::wxAttrKind  kind)
1042 {
1043     if ( m_attrProvider )
1044         return m_attrProvider->GetAttr(row, col, kind);
1045     else
1046         return NULL;
1047 }
1048
1049 void wxGridTableBase::SetAttr(wxGridCellAttr* attr, int row, int col)
1050 {
1051     if ( m_attrProvider )
1052     {
1053         if ( attr )
1054             attr->SetKind(wxGridCellAttr::Cell);
1055         m_attrProvider->SetAttr(attr, row, col);
1056     }
1057     else
1058     {
1059         // as we take ownership of the pointer and don't store it, we must
1060         // free it now
1061         wxSafeDecRef(attr);
1062     }
1063 }
1064
1065 void wxGridTableBase::SetRowAttr(wxGridCellAttr *attr, int row)
1066 {
1067     if ( m_attrProvider )
1068     {
1069         attr->SetKind(wxGridCellAttr::Row);
1070         m_attrProvider->SetRowAttr(attr, row);
1071     }
1072     else
1073     {
1074         // as we take ownership of the pointer and don't store it, we must
1075         // free it now
1076         wxSafeDecRef(attr);
1077     }
1078 }
1079
1080 void wxGridTableBase::SetColAttr(wxGridCellAttr *attr, int col)
1081 {
1082     if ( m_attrProvider )
1083     {
1084         attr->SetKind(wxGridCellAttr::Col);
1085         m_attrProvider->SetColAttr(attr, col);
1086     }
1087     else
1088     {
1089         // as we take ownership of the pointer and don't store it, we must
1090         // free it now
1091         wxSafeDecRef(attr);
1092     }
1093 }
1094
1095 bool wxGridTableBase::InsertRows( size_t WXUNUSED(pos),
1096                                   size_t WXUNUSED(numRows) )
1097 {
1098     wxFAIL_MSG( wxT("Called grid table class function InsertRows\nbut your derived table class does not override this function") );
1099
1100     return false;
1101 }
1102
1103 bool wxGridTableBase::AppendRows( size_t WXUNUSED(numRows) )
1104 {
1105     wxFAIL_MSG( wxT("Called grid table class function AppendRows\nbut your derived table class does not override this function"));
1106
1107     return false;
1108 }
1109
1110 bool wxGridTableBase::DeleteRows( size_t WXUNUSED(pos),
1111                                   size_t WXUNUSED(numRows) )
1112 {
1113     wxFAIL_MSG( wxT("Called grid table class function DeleteRows\nbut your derived table class does not override this function"));
1114
1115     return false;
1116 }
1117
1118 bool wxGridTableBase::InsertCols( size_t WXUNUSED(pos),
1119                                   size_t WXUNUSED(numCols) )
1120 {
1121     wxFAIL_MSG( wxT("Called grid table class function InsertCols\nbut your derived table class does not override this function"));
1122
1123     return false;
1124 }
1125
1126 bool wxGridTableBase::AppendCols( size_t WXUNUSED(numCols) )
1127 {
1128     wxFAIL_MSG(wxT("Called grid table class function AppendCols\nbut your derived table class does not override this function"));
1129
1130     return false;
1131 }
1132
1133 bool wxGridTableBase::DeleteCols( size_t WXUNUSED(pos),
1134                                   size_t WXUNUSED(numCols) )
1135 {
1136     wxFAIL_MSG( wxT("Called grid table class function DeleteCols\nbut your derived table class does not override this function"));
1137
1138     return false;
1139 }
1140
1141 wxString wxGridTableBase::GetRowLabelValue( int row )
1142 {
1143     wxString s;
1144
1145     // RD: Starting the rows at zero confuses users,
1146     // no matter how much it makes sense to us geeks.
1147     s << row + 1;
1148
1149     return s;
1150 }
1151
1152 wxString wxGridTableBase::GetColLabelValue( int col )
1153 {
1154     // default col labels are:
1155     //   cols 0 to 25   : A-Z
1156     //   cols 26 to 675 : AA-ZZ
1157     //   etc.
1158
1159     wxString s;
1160     unsigned int i, n;
1161     for ( n = 1; ; n++ )
1162     {
1163         s += (wxChar) (wxT('A') + (wxChar)(col % 26));
1164         col = col / 26 - 1;
1165         if ( col < 0 )
1166             break;
1167     }
1168
1169     // reverse the string...
1170     wxString s2;
1171     for ( i = 0; i < n; i++ )
1172     {
1173         s2 += s[n - i - 1];
1174     }
1175
1176     return s2;
1177 }
1178
1179 wxString wxGridTableBase::GetTypeName( int WXUNUSED(row), int WXUNUSED(col) )
1180 {
1181     return wxGRID_VALUE_STRING;
1182 }
1183
1184 bool wxGridTableBase::CanGetValueAs( int WXUNUSED(row), int WXUNUSED(col),
1185                                      const wxString& typeName )
1186 {
1187     return typeName == wxGRID_VALUE_STRING;
1188 }
1189
1190 bool wxGridTableBase::CanSetValueAs( int row, int col, const wxString& typeName )
1191 {
1192     return CanGetValueAs(row, col, typeName);
1193 }
1194
1195 long wxGridTableBase::GetValueAsLong( int WXUNUSED(row), int WXUNUSED(col) )
1196 {
1197     return 0;
1198 }
1199
1200 double wxGridTableBase::GetValueAsDouble( int WXUNUSED(row), int WXUNUSED(col) )
1201 {
1202     return 0.0;
1203 }
1204
1205 bool wxGridTableBase::GetValueAsBool( int WXUNUSED(row), int WXUNUSED(col) )
1206 {
1207     return false;
1208 }
1209
1210 void wxGridTableBase::SetValueAsLong( int WXUNUSED(row), int WXUNUSED(col),
1211                                       long WXUNUSED(value) )
1212 {
1213 }
1214
1215 void wxGridTableBase::SetValueAsDouble( int WXUNUSED(row), int WXUNUSED(col),
1216                                         double WXUNUSED(value) )
1217 {
1218 }
1219
1220 void wxGridTableBase::SetValueAsBool( int WXUNUSED(row), int WXUNUSED(col),
1221                                       bool WXUNUSED(value) )
1222 {
1223 }
1224
1225 void* wxGridTableBase::GetValueAsCustom( int WXUNUSED(row), int WXUNUSED(col),
1226                                          const wxString& WXUNUSED(typeName) )
1227 {
1228     return NULL;
1229 }
1230
1231 void  wxGridTableBase::SetValueAsCustom( int WXUNUSED(row), int WXUNUSED(col),
1232                                          const wxString& WXUNUSED(typeName),
1233                                          void* WXUNUSED(value) )
1234 {
1235 }
1236
1237 //////////////////////////////////////////////////////////////////////
1238 //
1239 // Message class for the grid table to send requests and notifications
1240 // to the grid view
1241 //
1242
1243 wxGridTableMessage::wxGridTableMessage()
1244 {
1245     m_table =  NULL;
1246     m_id = -1;
1247     m_comInt1 = -1;
1248     m_comInt2 = -1;
1249 }
1250
1251 wxGridTableMessage::wxGridTableMessage( wxGridTableBase *table, int id,
1252                                         int commandInt1, int commandInt2 )
1253 {
1254     m_table = table;
1255     m_id = id;
1256     m_comInt1 = commandInt1;
1257     m_comInt2 = commandInt2;
1258 }
1259
1260 //////////////////////////////////////////////////////////////////////
1261 //
1262 // A basic grid table for string data. An object of this class will
1263 // created by wxGrid if you don't specify an alternative table class.
1264 //
1265
1266 WX_DEFINE_OBJARRAY(wxGridStringArray)
1267
1268 IMPLEMENT_DYNAMIC_CLASS( wxGridStringTable, wxGridTableBase )
1269
1270 wxGridStringTable::wxGridStringTable()
1271         : wxGridTableBase()
1272 {
1273     m_numCols = 0;
1274 }
1275
1276 wxGridStringTable::wxGridStringTable( int numRows, int numCols )
1277         : wxGridTableBase()
1278 {
1279     m_numCols = numCols;
1280
1281     m_data.Alloc( numRows );
1282
1283     wxArrayString sa;
1284     sa.Alloc( numCols );
1285     sa.Add( wxEmptyString, numCols );
1286
1287     m_data.Add( sa, numRows );
1288 }
1289
1290 wxString wxGridStringTable::GetValue( int row, int col )
1291 {
1292     wxCHECK_MSG( (row >= 0 && row < GetNumberRows()) &&
1293                  (col >= 0 && col < GetNumberCols()),
1294                  wxEmptyString,
1295                  wxT("invalid row or column index in wxGridStringTable") );
1296
1297     return m_data[row][col];
1298 }
1299
1300 void wxGridStringTable::SetValue( int row, int col, const wxString& value )
1301 {
1302     wxCHECK_RET( (row >= 0 && row < GetNumberRows()) &&
1303                  (col >= 0 && col < GetNumberCols()),
1304                  wxT("invalid row or column index in wxGridStringTable") );
1305
1306     m_data[row][col] = value;
1307 }
1308
1309 void wxGridStringTable::Clear()
1310 {
1311     int row, col;
1312     int numRows, numCols;
1313
1314     numRows = m_data.GetCount();
1315     if ( numRows > 0 )
1316     {
1317         numCols = m_data[0].GetCount();
1318
1319         for ( row = 0; row < numRows; row++ )
1320         {
1321             for ( col = 0; col < numCols; col++ )
1322             {
1323                 m_data[row][col] = wxEmptyString;
1324             }
1325         }
1326     }
1327 }
1328
1329 bool wxGridStringTable::InsertRows( size_t pos, size_t numRows )
1330 {
1331     size_t curNumRows = m_data.GetCount();
1332     size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
1333                           ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1334
1335     if ( pos >= curNumRows )
1336     {
1337         return AppendRows( numRows );
1338     }
1339
1340     wxArrayString sa;
1341     sa.Alloc( curNumCols );
1342     sa.Add( wxEmptyString, curNumCols );
1343     m_data.Insert( sa, pos, numRows );
1344
1345     if ( GetView() )
1346     {
1347         wxGridTableMessage msg( this,
1348                                 wxGRIDTABLE_NOTIFY_ROWS_INSERTED,
1349                                 pos,
1350                                 numRows );
1351
1352         GetView()->ProcessTableMessage( msg );
1353     }
1354
1355     return true;
1356 }
1357
1358 bool wxGridStringTable::AppendRows( size_t numRows )
1359 {
1360     size_t curNumRows = m_data.GetCount();
1361     size_t curNumCols = ( curNumRows > 0
1362                          ? m_data[0].GetCount()
1363                          : ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1364
1365     wxArrayString sa;
1366     if ( curNumCols > 0 )
1367     {
1368         sa.Alloc( curNumCols );
1369         sa.Add( wxEmptyString, curNumCols );
1370     }
1371
1372     m_data.Add( sa, numRows );
1373
1374     if ( GetView() )
1375     {
1376         wxGridTableMessage msg( this,
1377                                 wxGRIDTABLE_NOTIFY_ROWS_APPENDED,
1378                                 numRows );
1379
1380         GetView()->ProcessTableMessage( msg );
1381     }
1382
1383     return true;
1384 }
1385
1386 bool wxGridStringTable::DeleteRows( size_t pos, size_t numRows )
1387 {
1388     size_t curNumRows = m_data.GetCount();
1389
1390     if ( pos >= curNumRows )
1391     {
1392         wxFAIL_MSG( wxString::Format
1393                     (
1394                         wxT("Called wxGridStringTable::DeleteRows(pos=%lu, N=%lu)\nPos value is invalid for present table with %lu rows"),
1395                         (unsigned long)pos,
1396                         (unsigned long)numRows,
1397                         (unsigned long)curNumRows
1398                     ) );
1399
1400         return false;
1401     }
1402
1403     if ( numRows > curNumRows - pos )
1404     {
1405         numRows = curNumRows - pos;
1406     }
1407
1408     if ( numRows >= curNumRows )
1409     {
1410         m_data.Clear();
1411     }
1412     else
1413     {
1414         m_data.RemoveAt( pos, numRows );
1415     }
1416
1417     if ( GetView() )
1418     {
1419         wxGridTableMessage msg( this,
1420                                 wxGRIDTABLE_NOTIFY_ROWS_DELETED,
1421                                 pos,
1422                                 numRows );
1423
1424         GetView()->ProcessTableMessage( msg );
1425     }
1426
1427     return true;
1428 }
1429
1430 bool wxGridStringTable::InsertCols( size_t pos, size_t numCols )
1431 {
1432     size_t row, col;
1433
1434     size_t curNumRows = m_data.GetCount();
1435     size_t curNumCols = ( curNumRows > 0
1436                          ? m_data[0].GetCount()
1437                          : ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1438
1439     if ( pos >= curNumCols )
1440     {
1441         return AppendCols( numCols );
1442     }
1443
1444     if ( !m_colLabels.IsEmpty() )
1445     {
1446         m_colLabels.Insert( wxEmptyString, pos, numCols );
1447
1448         size_t i;
1449         for ( i = pos; i < pos + numCols; i++ )
1450             m_colLabels[i] = wxGridTableBase::GetColLabelValue( i );
1451     }
1452
1453     for ( row = 0; row < curNumRows; row++ )
1454     {
1455         for ( col = pos; col < pos + numCols; col++ )
1456         {
1457             m_data[row].Insert( wxEmptyString, col );
1458         }
1459     }
1460
1461     m_numCols += numCols;
1462
1463     if ( GetView() )
1464     {
1465         wxGridTableMessage msg( this,
1466                                 wxGRIDTABLE_NOTIFY_COLS_INSERTED,
1467                                 pos,
1468                                 numCols );
1469
1470         GetView()->ProcessTableMessage( msg );
1471     }
1472
1473     return true;
1474 }
1475
1476 bool wxGridStringTable::AppendCols( size_t numCols )
1477 {
1478     size_t row;
1479
1480     size_t curNumRows = m_data.GetCount();
1481
1482     for ( row = 0; row < curNumRows; row++ )
1483     {
1484         m_data[row].Add( wxEmptyString, numCols );
1485     }
1486
1487     m_numCols += numCols;
1488
1489     if ( GetView() )
1490     {
1491         wxGridTableMessage msg( this,
1492                                 wxGRIDTABLE_NOTIFY_COLS_APPENDED,
1493                                 numCols );
1494
1495         GetView()->ProcessTableMessage( msg );
1496     }
1497
1498     return true;
1499 }
1500
1501 bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
1502 {
1503     size_t row;
1504
1505     size_t curNumRows = m_data.GetCount();
1506     size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
1507                           ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1508
1509     if ( pos >= curNumCols )
1510     {
1511         wxFAIL_MSG( wxString::Format
1512                     (
1513                         wxT("Called wxGridStringTable::DeleteCols(pos=%lu, N=%lu)\nPos value is invalid for present table with %lu cols"),
1514                         (unsigned long)pos,
1515                         (unsigned long)numCols,
1516                         (unsigned long)curNumCols
1517                     ) );
1518         return false;
1519     }
1520
1521     int colID;
1522     if ( GetView() )
1523         colID = GetView()->GetColAt( pos );
1524     else
1525         colID = pos;
1526
1527     if ( numCols > curNumCols - colID )
1528     {
1529         numCols = curNumCols - colID;
1530     }
1531
1532     if ( !m_colLabels.IsEmpty() )
1533     {
1534         // m_colLabels stores just as many elements as it needs, e.g. if only
1535         // the label of the first column had been set it would have only one
1536         // element and not numCols, so account for it
1537         int numRemaining = m_colLabels.size() - colID;
1538         m_colLabels.RemoveAt( colID, wxMin(numCols, numRemaining) );
1539     }
1540
1541     if ( numCols >= curNumCols )
1542     {
1543         for ( row = 0; row < curNumRows; row++ )
1544         {
1545             m_data[row].Clear();
1546         }
1547
1548         m_numCols = 0;
1549     }
1550     else // something will be left
1551     {
1552         for ( row = 0; row < curNumRows; row++ )
1553         {
1554             m_data[row].RemoveAt( colID, numCols );
1555         }
1556
1557         m_numCols -= numCols;
1558     }
1559
1560     if ( GetView() )
1561     {
1562         wxGridTableMessage msg( this,
1563                                 wxGRIDTABLE_NOTIFY_COLS_DELETED,
1564                                 pos,
1565                                 numCols );
1566
1567         GetView()->ProcessTableMessage( msg );
1568     }
1569
1570     return true;
1571 }
1572
1573 wxString wxGridStringTable::GetRowLabelValue( int row )
1574 {
1575     if ( row > (int)(m_rowLabels.GetCount()) - 1 )
1576     {
1577         // using default label
1578         //
1579         return wxGridTableBase::GetRowLabelValue( row );
1580     }
1581     else
1582     {
1583         return m_rowLabels[row];
1584     }
1585 }
1586
1587 wxString wxGridStringTable::GetColLabelValue( int col )
1588 {
1589     if ( col > (int)(m_colLabels.GetCount()) - 1 )
1590     {
1591         // using default label
1592         //
1593         return wxGridTableBase::GetColLabelValue( col );
1594     }
1595     else
1596     {
1597         return m_colLabels[col];
1598     }
1599 }
1600
1601 void wxGridStringTable::SetRowLabelValue( int row, const wxString& value )
1602 {
1603     if ( row > (int)(m_rowLabels.GetCount()) - 1 )
1604     {
1605         int n = m_rowLabels.GetCount();
1606         int i;
1607
1608         for ( i = n; i <= row; i++ )
1609         {
1610             m_rowLabels.Add( wxGridTableBase::GetRowLabelValue(i) );
1611         }
1612     }
1613
1614     m_rowLabels[row] = value;
1615 }
1616
1617 void wxGridStringTable::SetColLabelValue( int col, const wxString& value )
1618 {
1619     if ( col > (int)(m_colLabels.GetCount()) - 1 )
1620     {
1621         int n = m_colLabels.GetCount();
1622         int i;
1623
1624         for ( i = n; i <= col; i++ )
1625         {
1626             m_colLabels.Add( wxGridTableBase::GetColLabelValue(i) );
1627         }
1628     }
1629
1630     m_colLabels[col] = value;
1631 }
1632
1633
1634 //////////////////////////////////////////////////////////////////////
1635 //////////////////////////////////////////////////////////////////////
1636
1637 BEGIN_EVENT_TABLE(wxGridSubwindow, wxWindow)
1638     EVT_MOUSE_CAPTURE_LOST(wxGridSubwindow::OnMouseCaptureLost)
1639 END_EVENT_TABLE()
1640
1641 void wxGridSubwindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1642 {
1643     m_owner->CancelMouseCapture();
1644 }
1645
1646 BEGIN_EVENT_TABLE( wxGridRowLabelWindow, wxGridSubwindow )
1647     EVT_PAINT( wxGridRowLabelWindow::OnPaint )
1648     EVT_MOUSEWHEEL( wxGridRowLabelWindow::OnMouseWheel )
1649     EVT_MOUSE_EVENTS( wxGridRowLabelWindow::OnMouseEvent )
1650 END_EVENT_TABLE()
1651
1652 void wxGridRowLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
1653 {
1654     wxPaintDC dc(this);
1655
1656     // NO - don't do this because it will set both the x and y origin
1657     // coords to match the parent scrolled window and we just want to
1658     // set the y coord  - MB
1659     //
1660     // m_owner->PrepareDC( dc );
1661
1662     int x, y;
1663     m_owner->CalcUnscrolledPosition( 0, 0, &x, &y );
1664     wxPoint pt = dc.GetDeviceOrigin();
1665     dc.SetDeviceOrigin( pt.x, pt.y-y );
1666
1667     wxArrayInt rows = m_owner->CalcRowLabelsExposed( GetUpdateRegion() );
1668     m_owner->DrawRowLabels( dc, rows );
1669 }
1670
1671 void wxGridRowLabelWindow::OnMouseEvent( wxMouseEvent& event )
1672 {
1673     m_owner->ProcessRowLabelMouseEvent( event );
1674 }
1675
1676 void wxGridRowLabelWindow::OnMouseWheel( wxMouseEvent& event )
1677 {
1678     if (!m_owner->GetEventHandler()->ProcessEvent( event ))
1679         event.Skip();
1680 }
1681
1682 //////////////////////////////////////////////////////////////////////
1683
1684 BEGIN_EVENT_TABLE( wxGridColLabelWindow, wxGridSubwindow )
1685     EVT_PAINT( wxGridColLabelWindow::OnPaint )
1686     EVT_MOUSEWHEEL( wxGridColLabelWindow::OnMouseWheel )
1687     EVT_MOUSE_EVENTS( wxGridColLabelWindow::OnMouseEvent )
1688 END_EVENT_TABLE()
1689
1690 void wxGridColLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
1691 {
1692     wxPaintDC dc(this);
1693
1694     // NO - don't do this because it will set both the x and y origin
1695     // coords to match the parent scrolled window and we just want to
1696     // set the x coord  - MB
1697     //
1698     // m_owner->PrepareDC( dc );
1699
1700     int x, y;
1701     m_owner->CalcUnscrolledPosition( 0, 0, &x, &y );
1702     wxPoint pt = dc.GetDeviceOrigin();
1703     if (GetLayoutDirection() == wxLayout_RightToLeft)
1704         dc.SetDeviceOrigin( pt.x+x, pt.y );
1705     else
1706         dc.SetDeviceOrigin( pt.x-x, pt.y );
1707
1708     wxArrayInt cols = m_owner->CalcColLabelsExposed( GetUpdateRegion() );
1709     m_owner->DrawColLabels( dc, cols );
1710 }
1711
1712 void wxGridColLabelWindow::OnMouseEvent( wxMouseEvent& event )
1713 {
1714     m_owner->ProcessColLabelMouseEvent( event );
1715 }
1716
1717 void wxGridColLabelWindow::OnMouseWheel( wxMouseEvent& event )
1718 {
1719     if (!m_owner->GetEventHandler()->ProcessEvent( event ))
1720         event.Skip();
1721 }
1722
1723 //////////////////////////////////////////////////////////////////////
1724
1725 BEGIN_EVENT_TABLE( wxGridCornerLabelWindow, wxGridSubwindow )
1726     EVT_MOUSEWHEEL( wxGridCornerLabelWindow::OnMouseWheel )
1727     EVT_MOUSE_EVENTS( wxGridCornerLabelWindow::OnMouseEvent )
1728     EVT_PAINT( wxGridCornerLabelWindow::OnPaint )
1729 END_EVENT_TABLE()
1730
1731 void wxGridCornerLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
1732 {
1733     wxPaintDC dc(this);
1734
1735     m_owner->DrawCornerLabel(dc);
1736 }
1737
1738 void wxGridCornerLabelWindow::OnMouseEvent( wxMouseEvent& event )
1739 {
1740     m_owner->ProcessCornerLabelMouseEvent( event );
1741 }
1742
1743 void wxGridCornerLabelWindow::OnMouseWheel( wxMouseEvent& event )
1744 {
1745     if (!m_owner->GetEventHandler()->ProcessEvent(event))
1746         event.Skip();
1747 }
1748
1749 //////////////////////////////////////////////////////////////////////
1750
1751 BEGIN_EVENT_TABLE( wxGridWindow, wxGridSubwindow )
1752     EVT_PAINT( wxGridWindow::OnPaint )
1753     EVT_MOUSEWHEEL( wxGridWindow::OnMouseWheel )
1754     EVT_MOUSE_EVENTS( wxGridWindow::OnMouseEvent )
1755     EVT_KEY_DOWN( wxGridWindow::OnKeyDown )
1756     EVT_KEY_UP( wxGridWindow::OnKeyUp )
1757     EVT_CHAR( wxGridWindow::OnChar )
1758     EVT_SET_FOCUS( wxGridWindow::OnFocus )
1759     EVT_KILL_FOCUS( wxGridWindow::OnFocus )
1760     EVT_ERASE_BACKGROUND( wxGridWindow::OnEraseBackground )
1761 END_EVENT_TABLE()
1762
1763 void wxGridWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1764 {
1765     wxPaintDC dc( this );
1766     m_owner->PrepareDC( dc );
1767     wxRegion reg = GetUpdateRegion();
1768     wxGridCellCoordsArray dirtyCells = m_owner->CalcCellsExposed( reg );
1769     m_owner->DrawGridCellArea( dc, dirtyCells );
1770
1771     m_owner->DrawGridSpace( dc );
1772
1773     m_owner->DrawAllGridLines( dc, reg );
1774
1775     m_owner->DrawHighlight( dc, dirtyCells );
1776 }
1777
1778 void wxGridWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
1779 {
1780     wxWindow::ScrollWindow( dx, dy, rect );
1781     m_owner->GetGridRowLabelWindow()->ScrollWindow( 0, dy, rect );
1782     m_owner->GetGridColLabelWindow()->ScrollWindow( dx, 0, rect );
1783 }
1784
1785 void wxGridWindow::OnMouseEvent( wxMouseEvent& event )
1786 {
1787     if (event.ButtonDown(wxMOUSE_BTN_LEFT) && FindFocus() != this)
1788         SetFocus();
1789
1790     m_owner->ProcessGridCellMouseEvent( event );
1791 }
1792
1793 void wxGridWindow::OnMouseWheel( wxMouseEvent& event )
1794 {
1795     if (!m_owner->GetEventHandler()->ProcessEvent( event ))
1796         event.Skip();
1797 }
1798
1799 // This seems to be required for wxMotif/wxGTK otherwise the mouse
1800 // cursor must be in the cell edit control to get key events
1801 //
1802 void wxGridWindow::OnKeyDown( wxKeyEvent& event )
1803 {
1804     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1805         event.Skip();
1806 }
1807
1808 void wxGridWindow::OnKeyUp( wxKeyEvent& event )
1809 {
1810     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1811         event.Skip();
1812 }
1813
1814 void wxGridWindow::OnChar( wxKeyEvent& event )
1815 {
1816     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1817         event.Skip();
1818 }
1819
1820 void wxGridWindow::OnEraseBackground( wxEraseEvent& WXUNUSED(event) )
1821 {
1822 }
1823
1824 void wxGridWindow::OnFocus(wxFocusEvent& event)
1825 {
1826     // and if we have any selection, it has to be repainted, because it
1827     // uses different colour when the grid is not focused:
1828     if ( m_owner->IsSelection() )
1829     {
1830         Refresh();
1831     }
1832     else
1833     {
1834         // NB: Note that this code is in "else" branch only because the other
1835         //     branch refreshes everything and so there's no point in calling
1836         //     Refresh() again, *not* because it should only be done if
1837         //     !IsSelection(). If the above code is ever optimized to refresh
1838         //     only selected area, this needs to be moved out of the "else"
1839         //     branch so that it's always executed.
1840
1841         // current cell cursor {dis,re}appears on focus change:
1842         const wxGridCellCoords cursorCoords(m_owner->GetGridCursorRow(),
1843                                             m_owner->GetGridCursorCol());
1844         const wxRect cursor =
1845             m_owner->BlockToDeviceRect(cursorCoords, cursorCoords);
1846         Refresh(true, &cursor);
1847     }
1848
1849     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1850         event.Skip();
1851 }
1852
1853 #define internalXToCol(x) XToCol(x, true)
1854 #define internalYToRow(y) YToRow(y, true)
1855
1856 /////////////////////////////////////////////////////////////////////
1857
1858 BEGIN_EVENT_TABLE( wxGrid, wxScrolledWindow )
1859     EVT_PAINT( wxGrid::OnPaint )
1860     EVT_SIZE( wxGrid::OnSize )
1861     EVT_KEY_DOWN( wxGrid::OnKeyDown )
1862     EVT_KEY_UP( wxGrid::OnKeyUp )
1863     EVT_CHAR ( wxGrid::OnChar )
1864     EVT_ERASE_BACKGROUND( wxGrid::OnEraseBackground )
1865 END_EVENT_TABLE()
1866
1867 bool wxGrid::Create(wxWindow *parent, wxWindowID id,
1868                           const wxPoint& pos, const wxSize& size,
1869                           long style, const wxString& name)
1870 {
1871     if (!wxScrolledWindow::Create(parent, id, pos, size,
1872                                   style | wxWANTS_CHARS, name))
1873         return false;
1874
1875     m_colMinWidths = wxLongToLongHashMap(GRID_HASH_SIZE);
1876     m_rowMinHeights = wxLongToLongHashMap(GRID_HASH_SIZE);
1877
1878     Create();
1879     SetInitialSize(size);
1880     CalcDimensions();
1881
1882     return true;
1883 }
1884
1885 wxGrid::~wxGrid()
1886 {
1887     if ( m_winCapture )
1888         m_winCapture->ReleaseMouse();
1889
1890     // Ensure that the editor control is destroyed before the grid is,
1891     // otherwise we crash later when the editor tries to do something with the
1892     // half destroyed grid
1893     HideCellEditControl();
1894
1895     // Must do this or ~wxScrollHelper will pop the wrong event handler
1896     SetTargetWindow(this);
1897     ClearAttrCache();
1898     wxSafeDecRef(m_defaultCellAttr);
1899
1900 #ifdef DEBUG_ATTR_CACHE
1901     size_t total = gs_nAttrCacheHits + gs_nAttrCacheMisses;
1902     wxPrintf(wxT("wxGrid attribute cache statistics: "
1903                 "total: %u, hits: %u (%u%%)\n"),
1904              total, gs_nAttrCacheHits,
1905              total ? (gs_nAttrCacheHits*100) / total : 0);
1906 #endif
1907
1908     // if we own the table, just delete it, otherwise at least don't leave it
1909     // with dangling view pointer
1910     if ( m_ownTable )
1911         delete m_table;
1912     else if ( m_table && m_table->GetView() == this )
1913         m_table->SetView(NULL);
1914
1915     delete m_typeRegistry;
1916     delete m_selection;
1917
1918     delete m_setFixedRows;
1919     delete m_setFixedCols;
1920 }
1921
1922 //
1923 // ----- internal init and update functions
1924 //
1925
1926 // NOTE: If using the default visual attributes works everywhere then this can
1927 // be removed as well as the #else cases below.
1928 #define _USE_VISATTR 0
1929
1930 void wxGrid::Create()
1931 {
1932     // create the type registry
1933     m_typeRegistry = new wxGridTypeRegistry;
1934
1935     m_cellEditCtrlEnabled = false;
1936
1937     m_defaultCellAttr = new wxGridCellAttr();
1938
1939     // Set default cell attributes
1940     m_defaultCellAttr->SetDefAttr(m_defaultCellAttr);
1941     m_defaultCellAttr->SetKind(wxGridCellAttr::Default);
1942     m_defaultCellAttr->SetFont(GetFont());
1943     m_defaultCellAttr->SetAlignment(wxALIGN_LEFT, wxALIGN_TOP);
1944     m_defaultCellAttr->SetRenderer(new wxGridCellStringRenderer);
1945     m_defaultCellAttr->SetEditor(new wxGridCellTextEditor);
1946
1947 #if _USE_VISATTR
1948     wxVisualAttributes gva = wxListBox::GetClassDefaultAttributes();
1949     wxVisualAttributes lva = wxPanel::GetClassDefaultAttributes();
1950
1951     m_defaultCellAttr->SetTextColour(gva.colFg);
1952     m_defaultCellAttr->SetBackgroundColour(gva.colBg);
1953
1954 #else
1955     m_defaultCellAttr->SetTextColour(
1956         wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
1957     m_defaultCellAttr->SetBackgroundColour(
1958         wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
1959 #endif
1960
1961     m_numRows = 0;
1962     m_numCols = 0;
1963     m_currentCellCoords = wxGridNoCellCoords;
1964
1965     // subwindow components that make up the wxGrid
1966     m_rowLabelWin = new wxGridRowLabelWindow(this);
1967     CreateColumnWindow();
1968     m_cornerLabelWin = new wxGridCornerLabelWindow(this);
1969     m_gridWin = new wxGridWindow( this );
1970
1971     SetTargetWindow( m_gridWin );
1972
1973 #if _USE_VISATTR
1974     wxColour gfg = gva.colFg;
1975     wxColour gbg = gva.colBg;
1976     wxColour lfg = lva.colFg;
1977     wxColour lbg = lva.colBg;
1978 #else
1979     wxColour gfg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
1980     wxColour gbg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW );
1981     wxColour lfg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
1982     wxColour lbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
1983 #endif
1984
1985     m_cornerLabelWin->SetOwnForegroundColour(lfg);
1986     m_cornerLabelWin->SetOwnBackgroundColour(lbg);
1987     m_rowLabelWin->SetOwnForegroundColour(lfg);
1988     m_rowLabelWin->SetOwnBackgroundColour(lbg);
1989     m_colWindow->SetOwnForegroundColour(lfg);
1990     m_colWindow->SetOwnBackgroundColour(lbg);
1991
1992     m_gridWin->SetOwnForegroundColour(gfg);
1993     m_gridWin->SetOwnBackgroundColour(gbg);
1994
1995     m_labelBackgroundColour = m_rowLabelWin->GetBackgroundColour();
1996     m_labelTextColour = m_rowLabelWin->GetForegroundColour();
1997
1998     // now that we have the grid window, use its font to compute the default
1999     // row height
2000     m_defaultRowHeight = m_gridWin->GetCharHeight();
2001 #if defined(__WXMOTIF__) || defined(__WXGTK__)  // see also text ctrl sizing in ShowCellEditControl()
2002     m_defaultRowHeight += 8;
2003 #else
2004     m_defaultRowHeight += 4;
2005 #endif
2006
2007 }
2008
2009 void wxGrid::CreateColumnWindow()
2010 {
2011     if ( m_useNativeHeader )
2012     {
2013         m_colWindow = new wxGridHeaderCtrl(this);
2014         m_colLabelHeight = m_colWindow->GetBestSize().y;
2015     }
2016     else // draw labels ourselves
2017     {
2018         m_colWindow = new wxGridColLabelWindow(this);
2019         m_colLabelHeight = WXGRID_DEFAULT_COL_LABEL_HEIGHT;
2020     }
2021 }
2022
2023 bool wxGrid::CreateGrid( int numRows, int numCols,
2024                          wxGridSelectionModes selmode )
2025 {
2026     wxCHECK_MSG( !m_created,
2027                  false,
2028                  wxT("wxGrid::CreateGrid or wxGrid::SetTable called more than once") );
2029
2030     return SetTable(new wxGridStringTable(numRows, numCols), true, selmode);
2031 }
2032
2033 void wxGrid::SetSelectionMode(wxGridSelectionModes selmode)
2034 {
2035     wxCHECK_RET( m_created,
2036                  wxT("Called wxGrid::SetSelectionMode() before calling CreateGrid()") );
2037
2038     m_selection->SetSelectionMode( selmode );
2039 }
2040
2041 wxGrid::wxGridSelectionModes wxGrid::GetSelectionMode() const
2042 {
2043     wxCHECK_MSG( m_created, wxGridSelectCells,
2044                  wxT("Called wxGrid::GetSelectionMode() before calling CreateGrid()") );
2045
2046     return m_selection->GetSelectionMode();
2047 }
2048
2049 bool
2050 wxGrid::SetTable(wxGridTableBase *table,
2051                  bool takeOwnership,
2052                  wxGrid::wxGridSelectionModes selmode )
2053 {
2054     bool checkSelection = false;
2055     if ( m_created )
2056     {
2057         // stop all processing
2058         m_created = false;
2059
2060         if (m_table)
2061         {
2062             m_table->SetView(0);
2063             if( m_ownTable )
2064                 delete m_table;
2065             m_table = NULL;
2066         }
2067
2068         wxDELETE(m_selection);
2069
2070         m_ownTable = false;
2071         m_numRows = 0;
2072         m_numCols = 0;
2073         checkSelection = true;
2074
2075         // kill row and column size arrays
2076         m_colWidths.Empty();
2077         m_colRights.Empty();
2078         m_rowHeights.Empty();
2079         m_rowBottoms.Empty();
2080     }
2081
2082     if (table)
2083     {
2084         m_numRows = table->GetNumberRows();
2085         m_numCols = table->GetNumberCols();
2086
2087         if ( m_useNativeHeader )
2088             GetGridColHeader()->SetColumnCount(m_numCols);
2089
2090         m_table = table;
2091         m_table->SetView( this );
2092         m_ownTable = takeOwnership;
2093         m_selection = new wxGridSelection( this, selmode );
2094         if (checkSelection)
2095         {
2096             // If the newly set table is smaller than the
2097             // original one current cell and selection regions
2098             // might be invalid,
2099             m_selectedBlockCorner = wxGridNoCellCoords;
2100             m_currentCellCoords =
2101               wxGridCellCoords(wxMin(m_numRows, m_currentCellCoords.GetRow()),
2102                                wxMin(m_numCols, m_currentCellCoords.GetCol()));
2103             if (m_selectedBlockTopLeft.GetRow() >= m_numRows ||
2104                 m_selectedBlockTopLeft.GetCol() >= m_numCols)
2105             {
2106                 m_selectedBlockTopLeft = wxGridNoCellCoords;
2107                 m_selectedBlockBottomRight = wxGridNoCellCoords;
2108             }
2109             else
2110                 m_selectedBlockBottomRight =
2111                   wxGridCellCoords(wxMin(m_numRows,
2112                                          m_selectedBlockBottomRight.GetRow()),
2113                                    wxMin(m_numCols,
2114                                          m_selectedBlockBottomRight.GetCol()));
2115         }
2116         CalcDimensions();
2117
2118         m_created = true;
2119     }
2120
2121     return m_created;
2122 }
2123
2124 void wxGrid::Init()
2125 {
2126     m_created = false;
2127
2128     m_cornerLabelWin = NULL;
2129     m_rowLabelWin = NULL;
2130     m_colWindow = NULL;
2131     m_gridWin = NULL;
2132
2133     m_table = NULL;
2134     m_ownTable = false;
2135
2136     m_selection = NULL;
2137     m_defaultCellAttr = NULL;
2138     m_typeRegistry = NULL;
2139     m_winCapture = NULL;
2140
2141     m_rowLabelWidth  = WXGRID_DEFAULT_ROW_LABEL_WIDTH;
2142     m_colLabelHeight = WXGRID_DEFAULT_COL_LABEL_HEIGHT;
2143
2144     m_setFixedRows =
2145     m_setFixedCols = NULL;
2146
2147     // init attr cache
2148     m_attrCache.row = -1;
2149     m_attrCache.col = -1;
2150     m_attrCache.attr = NULL;
2151
2152     m_labelFont = GetFont();
2153     m_labelFont.SetWeight( wxBOLD );
2154
2155     m_rowLabelHorizAlign = wxALIGN_CENTRE;
2156     m_rowLabelVertAlign  = wxALIGN_CENTRE;
2157
2158     m_colLabelHorizAlign = wxALIGN_CENTRE;
2159     m_colLabelVertAlign  = wxALIGN_CENTRE;
2160     m_colLabelTextOrientation = wxHORIZONTAL;
2161
2162     m_defaultColWidth  = WXGRID_DEFAULT_COL_WIDTH;
2163     m_defaultRowHeight = 0; // this will be initialized after creation
2164
2165     m_minAcceptableColWidth  = WXGRID_MIN_COL_WIDTH;
2166     m_minAcceptableRowHeight = WXGRID_MIN_ROW_HEIGHT;
2167
2168     m_gridLineColour = wxColour( 192,192,192 );
2169     m_gridLinesEnabled = true;
2170     m_gridLinesClipHorz =
2171     m_gridLinesClipVert = true;
2172     m_cellHighlightColour = *wxBLACK;
2173     m_cellHighlightPenWidth = 2;
2174     m_cellHighlightROPenWidth = 1;
2175
2176     m_canDragColMove = false;
2177
2178     m_cursorMode  = WXGRID_CURSOR_SELECT_CELL;
2179     m_winCapture = NULL;
2180     m_canDragRowSize = true;
2181     m_canDragColSize = true;
2182     m_canDragGridSize = true;
2183     m_canDragCell = false;
2184     m_dragLastPos  = -1;
2185     m_dragRowOrCol = -1;
2186     m_isDragging = false;
2187     m_startDragPos = wxDefaultPosition;
2188
2189     m_sortCol = wxNOT_FOUND;
2190     m_sortIsAscending = true;
2191
2192     m_useNativeHeader =
2193     m_nativeColumnLabels = false;
2194
2195     m_waitForSlowClick = false;
2196
2197     m_rowResizeCursor = wxCursor( wxCURSOR_SIZENS );
2198     m_colResizeCursor = wxCursor( wxCURSOR_SIZEWE );
2199
2200     m_currentCellCoords = wxGridNoCellCoords;
2201
2202     m_selectedBlockTopLeft =
2203     m_selectedBlockBottomRight =
2204     m_selectedBlockCorner = wxGridNoCellCoords;
2205
2206     m_selectionBackground = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
2207     m_selectionForeground = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
2208
2209     m_editable = true;  // default for whole grid
2210
2211     m_inOnKeyDown = false;
2212     m_batchCount = 0;
2213
2214     m_extraWidth =
2215     m_extraHeight = 0;
2216
2217     // we can't call SetScrollRate() as the window isn't created yet but OTOH
2218     // we don't need to call it neither as the scroll position is (0, 0) right
2219     // now anyhow, so just set the parameters directly
2220     m_xScrollPixelsPerLine = GRID_SCROLL_LINE_X;
2221     m_yScrollPixelsPerLine = GRID_SCROLL_LINE_Y;
2222 }
2223
2224 // ----------------------------------------------------------------------------
2225 // the idea is to call these functions only when necessary because they create
2226 // quite big arrays which eat memory mostly unnecessary - in particular, if
2227 // default widths/heights are used for all rows/columns, we may not use these
2228 // arrays at all
2229 //
2230 // with some extra code, it should be possible to only store the widths/heights
2231 // different from default ones (resulting in space savings for huge grids) but
2232 // this is not done currently
2233 // ----------------------------------------------------------------------------
2234
2235 void wxGrid::InitRowHeights()
2236 {
2237     m_rowHeights.Empty();
2238     m_rowBottoms.Empty();
2239
2240     m_rowHeights.Alloc( m_numRows );
2241     m_rowBottoms.Alloc( m_numRows );
2242
2243     m_rowHeights.Add( m_defaultRowHeight, m_numRows );
2244
2245     int rowBottom = 0;
2246     for ( int i = 0; i < m_numRows; i++ )
2247     {
2248         rowBottom += m_defaultRowHeight;
2249         m_rowBottoms.Add( rowBottom );
2250     }
2251 }
2252
2253 void wxGrid::InitColWidths()
2254 {
2255     m_colWidths.Empty();
2256     m_colRights.Empty();
2257
2258     m_colWidths.Alloc( m_numCols );
2259     m_colRights.Alloc( m_numCols );
2260
2261     m_colWidths.Add( m_defaultColWidth, m_numCols );
2262
2263     for ( int i = 0; i < m_numCols; i++ )
2264     {
2265         int colRight = ( GetColPos( i ) + 1 ) * m_defaultColWidth;
2266         m_colRights.Add( colRight );
2267     }
2268 }
2269
2270 int wxGrid::GetColWidth(int col) const
2271 {
2272     return m_colWidths.IsEmpty() ? m_defaultColWidth : m_colWidths[col];
2273 }
2274
2275 int wxGrid::GetColLeft(int col) const
2276 {
2277     return m_colRights.IsEmpty() ? GetColPos( col ) * m_defaultColWidth
2278                                  : m_colRights[col] - m_colWidths[col];
2279 }
2280
2281 int wxGrid::GetColRight(int col) const
2282 {
2283     return m_colRights.IsEmpty() ? (GetColPos( col ) + 1) * m_defaultColWidth
2284                                  : m_colRights[col];
2285 }
2286
2287 int wxGrid::GetRowHeight(int row) const
2288 {
2289     return m_rowHeights.IsEmpty() ? m_defaultRowHeight : m_rowHeights[row];
2290 }
2291
2292 int wxGrid::GetRowTop(int row) const
2293 {
2294     return m_rowBottoms.IsEmpty() ? row * m_defaultRowHeight
2295                                   : m_rowBottoms[row] - m_rowHeights[row];
2296 }
2297
2298 int wxGrid::GetRowBottom(int row) const
2299 {
2300     return m_rowBottoms.IsEmpty() ? (row + 1) * m_defaultRowHeight
2301                                   : m_rowBottoms[row];
2302 }
2303
2304 void wxGrid::CalcDimensions()
2305 {
2306     // compute the size of the scrollable area
2307     int w = m_numCols > 0 ? GetColRight(GetColAt(m_numCols - 1)) : 0;
2308     int h = m_numRows > 0 ? GetRowBottom(m_numRows - 1) : 0;
2309
2310     w += m_extraWidth;
2311     h += m_extraHeight;
2312
2313     // take into account editor if shown
2314     if ( IsCellEditControlShown() )
2315     {
2316         int w2, h2;
2317         int r = m_currentCellCoords.GetRow();
2318         int c = m_currentCellCoords.GetCol();
2319         int x = GetColLeft(c);
2320         int y = GetRowTop(r);
2321
2322         // how big is the editor
2323         wxGridCellAttr* attr = GetCellAttr(r, c);
2324         wxGridCellEditor* editor = attr->GetEditor(this, r, c);
2325         editor->GetControl()->GetSize(&w2, &h2);
2326         w2 += x;
2327         h2 += y;
2328         if ( w2 > w )
2329             w = w2;
2330         if ( h2 > h )
2331             h = h2;
2332         editor->DecRef();
2333         attr->DecRef();
2334     }
2335
2336     // preserve (more or less) the previous position
2337     int x, y;
2338     GetViewStart( &x, &y );
2339
2340     // ensure the position is valid for the new scroll ranges
2341     if ( x >= w )
2342         x = wxMax( w - 1, 0 );
2343     if ( y >= h )
2344         y = wxMax( h - 1, 0 );
2345
2346     // update the virtual size and refresh the scrollbars to reflect it
2347     m_gridWin->SetVirtualSize(w, h);
2348     Scroll(x, y);
2349     AdjustScrollbars();
2350
2351     // if our OnSize() hadn't been called (it would if we have scrollbars), we
2352     // still must reposition the children
2353     CalcWindowSizes();
2354 }
2355
2356 wxSize wxGrid::GetSizeAvailableForScrollTarget(const wxSize& size)
2357 {
2358     wxSize sizeGridWin(size);
2359     sizeGridWin.x -= m_rowLabelWidth;
2360     sizeGridWin.y -= m_colLabelHeight;
2361
2362     return sizeGridWin;
2363 }
2364
2365 void wxGrid::CalcWindowSizes()
2366 {
2367     // escape if the window is has not been fully created yet
2368
2369     if ( m_cornerLabelWin == NULL )
2370         return;
2371
2372     int cw, ch;
2373     GetClientSize( &cw, &ch );
2374
2375     // the grid may be too small to have enough space for the labels yet, don't
2376     // size the windows to negative sizes in this case
2377     int gw = cw - m_rowLabelWidth;
2378     int gh = ch - m_colLabelHeight;
2379     if (gw < 0)
2380         gw = 0;
2381     if (gh < 0)
2382         gh = 0;
2383
2384     if ( m_cornerLabelWin && m_cornerLabelWin->IsShown() )
2385         m_cornerLabelWin->SetSize( 0, 0, m_rowLabelWidth, m_colLabelHeight );
2386
2387     if ( m_colWindow && m_colWindow->IsShown() )
2388         m_colWindow->SetSize( m_rowLabelWidth, 0, gw, m_colLabelHeight );
2389
2390     if ( m_rowLabelWin && m_rowLabelWin->IsShown() )
2391         m_rowLabelWin->SetSize( 0, m_colLabelHeight, m_rowLabelWidth, gh );
2392
2393     if ( m_gridWin && m_gridWin->IsShown() )
2394         m_gridWin->SetSize( m_rowLabelWidth, m_colLabelHeight, gw, gh );
2395 }
2396
2397 // this is called when the grid table sends a message
2398 // to indicate that it has been redimensioned
2399 //
2400 bool wxGrid::Redimension( wxGridTableMessage& msg )
2401 {
2402     int i;
2403     bool result = false;
2404
2405     // Clear the attribute cache as the attribute might refer to a different
2406     // cell than stored in the cache after adding/removing rows/columns.
2407     ClearAttrCache();
2408
2409     // By the same reasoning, the editor should be dismissed if columns are
2410     // added or removed. And for consistency, it should IMHO always be
2411     // removed, not only if the cell "underneath" it actually changes.
2412     // For now, I intentionally do not save the editor's content as the
2413     // cell it might want to save that stuff to might no longer exist.
2414     HideCellEditControl();
2415
2416     switch ( msg.GetId() )
2417     {
2418         case wxGRIDTABLE_NOTIFY_ROWS_INSERTED:
2419         {
2420             size_t pos = msg.GetCommandInt();
2421             int numRows = msg.GetCommandInt2();
2422
2423             m_numRows += numRows;
2424
2425             if ( !m_rowHeights.IsEmpty() )
2426             {
2427                 m_rowHeights.Insert( m_defaultRowHeight, pos, numRows );
2428                 m_rowBottoms.Insert( 0, pos, numRows );
2429
2430                 int bottom = 0;
2431                 if ( pos > 0 )
2432                     bottom = m_rowBottoms[pos - 1];
2433
2434                 for ( i = pos; i < m_numRows; i++ )
2435                 {
2436                     bottom += m_rowHeights[i];
2437                     m_rowBottoms[i] = bottom;
2438                 }
2439             }
2440
2441             if ( m_currentCellCoords == wxGridNoCellCoords )
2442             {
2443                 // if we have just inserted cols into an empty grid the current
2444                 // cell will be undefined...
2445                 //
2446                 SetCurrentCell( 0, 0 );
2447             }
2448
2449             if ( m_selection )
2450                 m_selection->UpdateRows( pos, numRows );
2451             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2452             if (attrProvider)
2453                 attrProvider->UpdateAttrRows( pos, numRows );
2454
2455             if ( !GetBatchCount() )
2456             {
2457                 CalcDimensions();
2458                 m_rowLabelWin->Refresh();
2459             }
2460         }
2461         result = true;
2462         break;
2463
2464         case wxGRIDTABLE_NOTIFY_ROWS_APPENDED:
2465         {
2466             int numRows = msg.GetCommandInt();
2467             int oldNumRows = m_numRows;
2468             m_numRows += numRows;
2469
2470             if ( !m_rowHeights.IsEmpty() )
2471             {
2472                 m_rowHeights.Add( m_defaultRowHeight, numRows );
2473                 m_rowBottoms.Add( 0, numRows );
2474
2475                 int bottom = 0;
2476                 if ( oldNumRows > 0 )
2477                     bottom = m_rowBottoms[oldNumRows - 1];
2478
2479                 for ( i = oldNumRows; i < m_numRows; i++ )
2480                 {
2481                     bottom += m_rowHeights[i];
2482                     m_rowBottoms[i] = bottom;
2483                 }
2484             }
2485
2486             if ( m_currentCellCoords == wxGridNoCellCoords )
2487             {
2488                 // if we have just inserted cols into an empty grid the current
2489                 // cell will be undefined...
2490                 //
2491                 SetCurrentCell( 0, 0 );
2492             }
2493
2494             if ( !GetBatchCount() )
2495             {
2496                 CalcDimensions();
2497                 m_rowLabelWin->Refresh();
2498             }
2499         }
2500         result = true;
2501         break;
2502
2503         case wxGRIDTABLE_NOTIFY_ROWS_DELETED:
2504         {
2505             size_t pos = msg.GetCommandInt();
2506             int numRows = msg.GetCommandInt2();
2507             m_numRows -= numRows;
2508
2509             if ( !m_rowHeights.IsEmpty() )
2510             {
2511                 m_rowHeights.RemoveAt( pos, numRows );
2512                 m_rowBottoms.RemoveAt( pos, numRows );
2513
2514                 int h = 0;
2515                 for ( i = 0; i < m_numRows; i++ )
2516                 {
2517                     h += m_rowHeights[i];
2518                     m_rowBottoms[i] = h;
2519                 }
2520             }
2521
2522             if ( !m_numRows )
2523             {
2524                 m_currentCellCoords = wxGridNoCellCoords;
2525             }
2526             else
2527             {
2528                 if ( m_currentCellCoords.GetRow() >= m_numRows )
2529                     m_currentCellCoords.Set( 0, 0 );
2530             }
2531
2532             if ( m_selection )
2533                 m_selection->UpdateRows( pos, -((int)numRows) );
2534             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2535             if (attrProvider)
2536             {
2537                 attrProvider->UpdateAttrRows( pos, -((int)numRows) );
2538
2539 // ifdef'd out following patch from Paul Gammans
2540 #if 0
2541                 // No need to touch column attributes, unless we
2542                 // removed _all_ rows, in this case, we remove
2543                 // all column attributes.
2544                 // I hate to do this here, but the
2545                 // needed data is not available inside UpdateAttrRows.
2546                 if ( !GetNumberRows() )
2547                     attrProvider->UpdateAttrCols( 0, -GetNumberCols() );
2548 #endif
2549             }
2550
2551             if ( !GetBatchCount() )
2552             {
2553                 CalcDimensions();
2554                 m_rowLabelWin->Refresh();
2555             }
2556         }
2557         result = true;
2558         break;
2559
2560         case wxGRIDTABLE_NOTIFY_COLS_INSERTED:
2561         {
2562             size_t pos = msg.GetCommandInt();
2563             int numCols = msg.GetCommandInt2();
2564             m_numCols += numCols;
2565
2566             if ( m_useNativeHeader )
2567                 GetGridColHeader()->SetColumnCount(m_numCols);
2568
2569             if ( !m_colAt.IsEmpty() )
2570             {
2571                 //Shift the column IDs
2572                 int i;
2573                 for ( i = 0; i < m_numCols - numCols; i++ )
2574                 {
2575                     if ( m_colAt[i] >= (int)pos )
2576                         m_colAt[i] += numCols;
2577                 }
2578
2579                 m_colAt.Insert( pos, pos, numCols );
2580
2581                 //Set the new columns' positions
2582                 for ( i = pos + 1; i < (int)pos + numCols; i++ )
2583                 {
2584                     m_colAt[i] = i;
2585                 }
2586             }
2587
2588             if ( !m_colWidths.IsEmpty() )
2589             {
2590                 m_colWidths.Insert( m_defaultColWidth, pos, numCols );
2591                 m_colRights.Insert( 0, pos, numCols );
2592
2593                 int right = 0;
2594                 if ( pos > 0 )
2595                     right = m_colRights[GetColAt( pos - 1 )];
2596
2597                 int colPos;
2598                 for ( colPos = pos; colPos < m_numCols; colPos++ )
2599                 {
2600                     i = GetColAt( colPos );
2601
2602                     right += m_colWidths[i];
2603                     m_colRights[i] = right;
2604                 }
2605             }
2606
2607             if ( m_currentCellCoords == wxGridNoCellCoords )
2608             {
2609                 // if we have just inserted cols into an empty grid the current
2610                 // cell will be undefined...
2611                 //
2612                 SetCurrentCell( 0, 0 );
2613             }
2614
2615             if ( m_selection )
2616                 m_selection->UpdateCols( pos, numCols );
2617             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2618             if (attrProvider)
2619                 attrProvider->UpdateAttrCols( pos, numCols );
2620             if ( !GetBatchCount() )
2621             {
2622                 CalcDimensions();
2623                 m_colWindow->Refresh();
2624             }
2625         }
2626         result = true;
2627         break;
2628
2629         case wxGRIDTABLE_NOTIFY_COLS_APPENDED:
2630         {
2631             int numCols = msg.GetCommandInt();
2632             int oldNumCols = m_numCols;
2633             m_numCols += numCols;
2634             if ( m_useNativeHeader )
2635                 GetGridColHeader()->SetColumnCount(m_numCols);
2636
2637             if ( !m_colAt.IsEmpty() )
2638             {
2639                 m_colAt.Add( 0, numCols );
2640
2641                 //Set the new columns' positions
2642                 int i;
2643                 for ( i = oldNumCols; i < m_numCols; i++ )
2644                 {
2645                     m_colAt[i] = i;
2646                 }
2647             }
2648
2649             if ( !m_colWidths.IsEmpty() )
2650             {
2651                 m_colWidths.Add( m_defaultColWidth, numCols );
2652                 m_colRights.Add( 0, numCols );
2653
2654                 int right = 0;
2655                 if ( oldNumCols > 0 )
2656                     right = m_colRights[GetColAt( oldNumCols - 1 )];
2657
2658                 int colPos;
2659                 for ( colPos = oldNumCols; colPos < m_numCols; colPos++ )
2660                 {
2661                     i = GetColAt( colPos );
2662
2663                     right += m_colWidths[i];
2664                     m_colRights[i] = right;
2665                 }
2666             }
2667
2668             if ( m_currentCellCoords == wxGridNoCellCoords )
2669             {
2670                 // if we have just inserted cols into an empty grid the current
2671                 // cell will be undefined...
2672                 //
2673                 SetCurrentCell( 0, 0 );
2674             }
2675             if ( !GetBatchCount() )
2676             {
2677                 CalcDimensions();
2678                 m_colWindow->Refresh();
2679             }
2680         }
2681         result = true;
2682         break;
2683
2684         case wxGRIDTABLE_NOTIFY_COLS_DELETED:
2685         {
2686             size_t pos = msg.GetCommandInt();
2687             int numCols = msg.GetCommandInt2();
2688             m_numCols -= numCols;
2689             if ( m_useNativeHeader )
2690                 GetGridColHeader()->SetColumnCount(m_numCols);
2691
2692             if ( !m_colAt.IsEmpty() )
2693             {
2694                 int colID = GetColAt( pos );
2695
2696                 m_colAt.RemoveAt( pos, numCols );
2697
2698                 //Shift the column IDs
2699                 int colPos;
2700                 for ( colPos = 0; colPos < m_numCols; colPos++ )
2701                 {
2702                     if ( m_colAt[colPos] > colID )
2703                         m_colAt[colPos] -= numCols;
2704                 }
2705             }
2706
2707             if ( !m_colWidths.IsEmpty() )
2708             {
2709                 m_colWidths.RemoveAt( pos, numCols );
2710                 m_colRights.RemoveAt( pos, numCols );
2711
2712                 int w = 0;
2713                 int colPos;
2714                 for ( colPos = 0; colPos < m_numCols; colPos++ )
2715                 {
2716                     i = GetColAt( colPos );
2717
2718                     w += m_colWidths[i];
2719                     m_colRights[i] = w;
2720                 }
2721             }
2722
2723             if ( !m_numCols )
2724             {
2725                 m_currentCellCoords = wxGridNoCellCoords;
2726             }
2727             else
2728             {
2729                 if ( m_currentCellCoords.GetCol() >= m_numCols )
2730                   m_currentCellCoords.Set( 0, 0 );
2731             }
2732
2733             if ( m_selection )
2734                 m_selection->UpdateCols( pos, -((int)numCols) );
2735             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2736             if (attrProvider)
2737             {
2738                 attrProvider->UpdateAttrCols( pos, -((int)numCols) );
2739
2740 // ifdef'd out following patch from Paul Gammans
2741 #if 0
2742                 // No need to touch row attributes, unless we
2743                 // removed _all_ columns, in this case, we remove
2744                 // all row attributes.
2745                 // I hate to do this here, but the
2746                 // needed data is not available inside UpdateAttrCols.
2747                 if ( !GetNumberCols() )
2748                     attrProvider->UpdateAttrRows( 0, -GetNumberRows() );
2749 #endif
2750             }
2751
2752             if ( !GetBatchCount() )
2753             {
2754                 CalcDimensions();
2755                 m_colWindow->Refresh();
2756             }
2757         }
2758         result = true;
2759         break;
2760     }
2761
2762     if (result && !GetBatchCount() )
2763         m_gridWin->Refresh();
2764
2765     return result;
2766 }
2767
2768 wxArrayInt wxGrid::CalcRowLabelsExposed( const wxRegion& reg ) const
2769 {
2770     wxRegionIterator iter( reg );
2771     wxRect r;
2772
2773     wxArrayInt  rowlabels;
2774
2775     int top, bottom;
2776     while ( iter )
2777     {
2778         r = iter.GetRect();
2779
2780         // TODO: remove this when we can...
2781         // There is a bug in wxMotif that gives garbage update
2782         // rectangles if you jump-scroll a long way by clicking the
2783         // scrollbar with middle button.  This is a work-around
2784         //
2785 #if defined(__WXMOTIF__)
2786         int cw, ch;
2787         m_gridWin->GetClientSize( &cw, &ch );
2788         if ( r.GetTop() > ch )
2789             r.SetTop( 0 );
2790         r.SetBottom( wxMin( r.GetBottom(), ch ) );
2791 #endif
2792
2793         // logical bounds of update region
2794         //
2795         int dummy;
2796         CalcUnscrolledPosition( 0, r.GetTop(), &dummy, &top );
2797         CalcUnscrolledPosition( 0, r.GetBottom(), &dummy, &bottom );
2798
2799         // find the row labels within these bounds
2800         //
2801         int row;
2802         for ( row = internalYToRow(top); row < m_numRows; row++ )
2803         {
2804             if ( GetRowBottom(row) < top )
2805                 continue;
2806
2807             if ( GetRowTop(row) > bottom )
2808                 break;
2809
2810             rowlabels.Add( row );
2811         }
2812
2813         ++iter;
2814     }
2815
2816     return rowlabels;
2817 }
2818
2819 wxArrayInt wxGrid::CalcColLabelsExposed( const wxRegion& reg ) const
2820 {
2821     wxRegionIterator iter( reg );
2822     wxRect r;
2823
2824     wxArrayInt colLabels;
2825
2826     int left, right;
2827     while ( iter )
2828     {
2829         r = iter.GetRect();
2830
2831         // TODO: remove this when we can...
2832         // There is a bug in wxMotif that gives garbage update
2833         // rectangles if you jump-scroll a long way by clicking the
2834         // scrollbar with middle button.  This is a work-around
2835         //
2836 #if defined(__WXMOTIF__)
2837         int cw, ch;
2838         m_gridWin->GetClientSize( &cw, &ch );
2839         if ( r.GetLeft() > cw )
2840             r.SetLeft( 0 );
2841         r.SetRight( wxMin( r.GetRight(), cw ) );
2842 #endif
2843
2844         // logical bounds of update region
2845         //
2846         int dummy;
2847         CalcUnscrolledPosition( r.GetLeft(), 0, &left, &dummy );
2848         CalcUnscrolledPosition( r.GetRight(), 0, &right, &dummy );
2849
2850         // find the cells within these bounds
2851         //
2852         int col;
2853         int colPos;
2854         for ( colPos = GetColPos( internalXToCol(left) ); colPos < m_numCols; colPos++ )
2855         {
2856             col = GetColAt( colPos );
2857
2858             if ( GetColRight(col) < left )
2859                 continue;
2860
2861             if ( GetColLeft(col) > right )
2862                 break;
2863
2864             colLabels.Add( col );
2865         }
2866
2867         ++iter;
2868     }
2869
2870     return colLabels;
2871 }
2872
2873 wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg ) const
2874 {
2875     wxRegionIterator iter( reg );
2876     wxRect r;
2877
2878     wxGridCellCoordsArray  cellsExposed;
2879
2880     int left, top, right, bottom;
2881     while ( iter )
2882     {
2883         r = iter.GetRect();
2884
2885         // TODO: remove this when we can...
2886         // There is a bug in wxMotif that gives garbage update
2887         // rectangles if you jump-scroll a long way by clicking the
2888         // scrollbar with middle button.  This is a work-around
2889         //
2890 #if defined(__WXMOTIF__)
2891         int cw, ch;
2892         m_gridWin->GetClientSize( &cw, &ch );
2893         if ( r.GetTop() > ch ) r.SetTop( 0 );
2894         if ( r.GetLeft() > cw ) r.SetLeft( 0 );
2895         r.SetRight( wxMin( r.GetRight(), cw ) );
2896         r.SetBottom( wxMin( r.GetBottom(), ch ) );
2897 #endif
2898
2899         // logical bounds of update region
2900         //
2901         CalcUnscrolledPosition( r.GetLeft(), r.GetTop(), &left, &top );
2902         CalcUnscrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
2903
2904         // find the cells within these bounds
2905         wxArrayInt cols;
2906         for ( int row = internalYToRow(top); row < m_numRows; row++ )
2907         {
2908             if ( GetRowBottom(row) <= top )
2909                 continue;
2910
2911             if ( GetRowTop(row) > bottom )
2912                 break;
2913
2914             // add all dirty cells in this row: notice that the columns which
2915             // are dirty don't depend on the row so we compute them only once
2916             // for the first dirty row and then reuse for all the next ones
2917             if ( cols.empty() )
2918             {
2919                 // do determine the dirty columns
2920                 for ( int pos = XToPos(left); pos <= XToPos(right); pos++ )
2921                     cols.push_back(GetColAt(pos));
2922
2923                 // if there are no dirty columns at all, nothing to do
2924                 if ( cols.empty() )
2925                     break;
2926             }
2927
2928             const size_t count = cols.size();
2929             for ( size_t n = 0; n < count; n++ )
2930                 cellsExposed.Add(wxGridCellCoords(row, cols[n]));
2931         }
2932
2933         ++iter;
2934     }
2935
2936     return cellsExposed;
2937 }
2938
2939
2940 void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
2941 {
2942     int x, y, row;
2943     wxPoint pos( event.GetPosition() );
2944     CalcUnscrolledPosition( pos.x, pos.y, &x, &y );
2945
2946     if ( event.Dragging() )
2947     {
2948         if (!m_isDragging)
2949         {
2950             m_isDragging = true;
2951             m_rowLabelWin->CaptureMouse();
2952         }
2953
2954         if ( event.LeftIsDown() )
2955         {
2956             switch ( m_cursorMode )
2957             {
2958                 case WXGRID_CURSOR_RESIZE_ROW:
2959                 {
2960                     int cw, ch, left, dummy;
2961                     m_gridWin->GetClientSize( &cw, &ch );
2962                     CalcUnscrolledPosition( 0, 0, &left, &dummy );
2963
2964                     wxClientDC dc( m_gridWin );
2965                     PrepareDC( dc );
2966                     y = wxMax( y,
2967                                GetRowTop(m_dragRowOrCol) +
2968                                GetRowMinimalHeight(m_dragRowOrCol) );
2969                     dc.SetLogicalFunction(wxINVERT);
2970                     if ( m_dragLastPos >= 0 )
2971                     {
2972                         dc.DrawLine( left, m_dragLastPos, left+cw, m_dragLastPos );
2973                     }
2974                     dc.DrawLine( left, y, left+cw, y );
2975                     m_dragLastPos = y;
2976                 }
2977                 break;
2978
2979                 case WXGRID_CURSOR_SELECT_ROW:
2980                 {
2981                     if ( (row = YToRow( y )) >= 0 )
2982                     {
2983                         if ( m_selection )
2984                             m_selection->SelectRow(row, event);
2985                     }
2986                 }
2987                 break;
2988
2989                 // default label to suppress warnings about "enumeration value
2990                 // 'xxx' not handled in switch
2991                 default:
2992                     break;
2993             }
2994         }
2995         return;
2996     }
2997
2998     if ( m_isDragging && (event.Entering() || event.Leaving()) )
2999         return;
3000
3001     if (m_isDragging)
3002     {
3003         if (m_rowLabelWin->HasCapture())
3004             m_rowLabelWin->ReleaseMouse();
3005         m_isDragging = false;
3006     }
3007
3008     // ------------ Entering or leaving the window
3009     //
3010     if ( event.Entering() || event.Leaving() )
3011     {
3012         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin);
3013     }
3014
3015     // ------------ Left button pressed
3016     //
3017     else if ( event.LeftDown() )
3018     {
3019         row = YToEdgeOfRow(y);
3020         if ( row != wxNOT_FOUND && CanDragRowSize(row) )
3021         {
3022             ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, m_rowLabelWin);
3023         }
3024         else // not a request to start resizing
3025         {
3026             row = YToRow(y);
3027             if ( row >= 0 &&
3028                  !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, row, -1, event ) )
3029             {
3030                 if ( !event.ShiftDown() && !event.CmdDown() )
3031                     ClearSelection();
3032                 if ( m_selection )
3033                 {
3034                     if ( event.ShiftDown() )
3035                     {
3036                         m_selection->SelectBlock
3037                                      (
3038                                         m_currentCellCoords.GetRow(), 0,
3039                                         row, GetNumberCols() - 1,
3040                                         event
3041                                      );
3042                     }
3043                     else
3044                     {
3045                         m_selection->SelectRow(row, event);
3046                     }
3047                 }
3048
3049                 ChangeCursorMode(WXGRID_CURSOR_SELECT_ROW, m_rowLabelWin);
3050             }
3051         }
3052     }
3053
3054     // ------------ Left double click
3055     //
3056     else if (event.LeftDClick() )
3057     {
3058         row = YToEdgeOfRow(y);
3059         if ( row != wxNOT_FOUND && CanDragRowSize(row) )
3060         {
3061             // adjust row height depending on label text
3062             //
3063             // TODO: generate RESIZING event, see #10754
3064             AutoSizeRowLabelSize( row );
3065
3066             SendGridSizeEvent(wxEVT_GRID_ROW_SIZE, row, -1, event);
3067
3068             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3069             m_dragLastPos = -1;
3070         }
3071         else // not on row separator or it's not resizable
3072         {
3073             row = YToRow(y);
3074             if ( row >=0 &&
3075                  !SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, row, -1, event ) )
3076             {
3077                 // no default action at the moment
3078             }
3079         }
3080     }
3081
3082     // ------------ Left button released
3083     //
3084     else if ( event.LeftUp() )
3085     {
3086         if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW )
3087             DoEndDragResizeRow(event);
3088
3089         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin);
3090         m_dragLastPos = -1;
3091     }
3092
3093     // ------------ Right button down
3094     //
3095     else if ( event.RightDown() )
3096     {
3097         row = YToRow(y);
3098         if ( row >=0 &&
3099              !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, row, -1, event ) )
3100         {
3101             // no default action at the moment
3102         }
3103     }
3104
3105     // ------------ Right double click
3106     //
3107     else if ( event.RightDClick() )
3108     {
3109         row = YToRow(y);
3110         if ( row >= 0 &&
3111              !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, row, -1, event ) )
3112         {
3113             // no default action at the moment
3114         }
3115     }
3116
3117     // ------------ No buttons down and mouse moving
3118     //
3119     else if ( event.Moving() )
3120     {
3121         m_dragRowOrCol = YToEdgeOfRow( y );
3122         if ( m_dragRowOrCol != wxNOT_FOUND )
3123         {
3124             if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3125             {
3126                 if ( CanDragRowSize(m_dragRowOrCol) )
3127                     ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, m_rowLabelWin, false);
3128             }
3129         }
3130         else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
3131         {
3132             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin, false);
3133         }
3134     }
3135 }
3136
3137 void wxGrid::UpdateColumnSortingIndicator(int col)
3138 {
3139     wxCHECK_RET( col != wxNOT_FOUND, "invalid column index" );
3140
3141     if ( m_useNativeHeader )
3142         GetGridColHeader()->UpdateColumn(col);
3143     else if ( m_nativeColumnLabels )
3144         m_colWindow->Refresh();
3145     //else: sorting indicator display not yet implemented in grid version
3146 }
3147
3148 void wxGrid::SetSortingColumn(int col, bool ascending)
3149 {
3150     if ( col == m_sortCol )
3151     {
3152         // we are already using this column for sorting (or not sorting at all)
3153         // but we might still change the sorting order, check for it
3154         if ( m_sortCol != wxNOT_FOUND && ascending != m_sortIsAscending )
3155         {
3156             m_sortIsAscending = ascending;
3157
3158             UpdateColumnSortingIndicator(m_sortCol);
3159         }
3160     }
3161     else // we're changing the column used for sorting
3162     {
3163         const int sortColOld = m_sortCol;
3164
3165         // change it before updating the column as we want GetSortingColumn()
3166         // to return the correct new value
3167         m_sortCol = col;
3168
3169         if ( sortColOld != wxNOT_FOUND )
3170             UpdateColumnSortingIndicator(sortColOld);
3171
3172         if ( m_sortCol != wxNOT_FOUND )
3173         {
3174             m_sortIsAscending = ascending;
3175             UpdateColumnSortingIndicator(m_sortCol);
3176         }
3177     }
3178 }
3179
3180 void wxGrid::DoColHeaderClick(int col)
3181 {
3182     // we consider that the grid was resorted if this event is processed and
3183     // not vetoed
3184     if ( SendEvent(wxEVT_GRID_COL_SORT, -1, col) == 1 )
3185     {
3186         SetSortingColumn(col, IsSortingBy(col) ? !m_sortIsAscending : true);
3187         Refresh();
3188     }
3189 }
3190
3191 void wxGrid::DoStartResizeCol(int col)
3192 {
3193     m_dragRowOrCol = col;
3194     m_dragLastPos = -1;
3195     DoUpdateResizeColWidth(GetColWidth(m_dragRowOrCol));
3196 }
3197
3198 void wxGrid::DoUpdateResizeCol(int x)
3199 {
3200     int cw, ch, dummy, top;
3201     m_gridWin->GetClientSize( &cw, &ch );
3202     CalcUnscrolledPosition( 0, 0, &dummy, &top );
3203
3204     wxClientDC dc( m_gridWin );
3205     PrepareDC( dc );
3206
3207     x = wxMax( x, GetColLeft(m_dragRowOrCol) + GetColMinimalWidth(m_dragRowOrCol));
3208     dc.SetLogicalFunction(wxINVERT);
3209     if ( m_dragLastPos >= 0 )
3210     {
3211         dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top + ch );
3212     }
3213     dc.DrawLine( x, top, x, top + ch );
3214     m_dragLastPos = x;
3215 }
3216
3217 void wxGrid::DoUpdateResizeColWidth(int w)
3218 {
3219     DoUpdateResizeCol(GetColLeft(m_dragRowOrCol) + w);
3220 }
3221
3222 void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
3223 {
3224     int x, y;
3225     wxPoint pos( event.GetPosition() );
3226     CalcUnscrolledPosition( pos.x, pos.y, &x, &y );
3227
3228     int col = XToCol(x);
3229     if ( event.Dragging() )
3230     {
3231         if (!m_isDragging)
3232         {
3233             m_isDragging = true;
3234             GetColLabelWindow()->CaptureMouse();
3235
3236             if ( m_cursorMode == WXGRID_CURSOR_MOVE_COL && col != -1 )
3237                 DoStartMoveCol(col);
3238         }
3239
3240         if ( event.LeftIsDown() )
3241         {
3242             switch ( m_cursorMode )
3243             {
3244                 case WXGRID_CURSOR_RESIZE_COL:
3245                 DoUpdateResizeCol(x);
3246                 break;
3247
3248                 case WXGRID_CURSOR_SELECT_COL:
3249                 {
3250                     if ( col != -1 )
3251                     {
3252                         if ( m_selection )
3253                             m_selection->SelectCol(col, event);
3254                     }
3255                 }
3256                 break;
3257
3258                 case WXGRID_CURSOR_MOVE_COL:
3259                 {
3260                     int posNew = XToPos(x);
3261                     int colNew = GetColAt(posNew);
3262
3263                     // determine the position of the drop marker
3264                     int markerX;
3265                     if ( x >= GetColLeft(colNew) + (GetColWidth(colNew) / 2) )
3266                         markerX = GetColRight(colNew);
3267                     else
3268                         markerX = GetColLeft(colNew);
3269
3270                     if ( markerX != m_dragLastPos )
3271                     {
3272                         wxClientDC dc( GetColLabelWindow() );
3273                         DoPrepareDC(dc);
3274
3275                         int cw, ch;
3276                         GetColLabelWindow()->GetClientSize( &cw, &ch );
3277
3278                         markerX++;
3279
3280                         //Clean up the last indicator
3281                         if ( m_dragLastPos >= 0 )
3282                         {
3283                             wxPen pen( GetColLabelWindow()->GetBackgroundColour(), 2 );
3284                             dc.SetPen(pen);
3285                             dc.DrawLine( m_dragLastPos + 1, 0, m_dragLastPos + 1, ch );
3286                             dc.SetPen(wxNullPen);
3287
3288                             if ( XToCol( m_dragLastPos ) != -1 )
3289                                 DrawColLabel( dc, XToCol( m_dragLastPos ) );
3290                         }
3291
3292                         const wxColour *color;
3293                         //Moving to the same place? Don't draw a marker
3294                         if ( colNew == m_dragRowOrCol )
3295                             color = wxLIGHT_GREY;
3296                         else
3297                             color = wxBLUE;
3298
3299                         //Draw the marker
3300                         wxPen pen( *color, 2 );
3301                         dc.SetPen(pen);
3302
3303                         dc.DrawLine( markerX, 0, markerX, ch );
3304
3305                         dc.SetPen(wxNullPen);
3306
3307                         m_dragLastPos = markerX - 1;
3308                     }
3309                 }
3310                 break;
3311
3312                 // default label to suppress warnings about "enumeration value
3313                 // 'xxx' not handled in switch
3314                 default:
3315                     break;
3316             }
3317         }
3318         return;
3319     }
3320
3321     if ( m_isDragging && (event.Entering() || event.Leaving()) )
3322         return;
3323
3324     if (m_isDragging)
3325     {
3326         if (GetColLabelWindow()->HasCapture())
3327             GetColLabelWindow()->ReleaseMouse();
3328         m_isDragging = false;
3329     }
3330
3331     // ------------ Entering or leaving the window
3332     //
3333     if ( event.Entering() || event.Leaving() )
3334     {
3335         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3336     }
3337
3338     // ------------ Left button pressed
3339     //
3340     else if ( event.LeftDown() )
3341     {
3342         int col = XToEdgeOfCol(x);
3343         if ( col != wxNOT_FOUND && CanDragColSize(col) )
3344         {
3345             ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, GetColLabelWindow());
3346         }
3347         else // not a request to start resizing
3348         {
3349             col = XToCol(x);
3350             if ( col >= 0 &&
3351                  !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, -1, col, event ) )
3352             {
3353                 if ( m_canDragColMove )
3354                 {
3355                     //Show button as pressed
3356                     wxClientDC dc( GetColLabelWindow() );
3357                     int colLeft = GetColLeft( col );
3358                     int colRight = GetColRight( col ) - 1;
3359                     dc.SetPen( wxPen( GetColLabelWindow()->GetBackgroundColour(), 1 ) );
3360                     dc.DrawLine( colLeft, 1, colLeft, m_colLabelHeight-1 );
3361                     dc.DrawLine( colLeft, 1, colRight, 1 );
3362
3363                     ChangeCursorMode(WXGRID_CURSOR_MOVE_COL, GetColLabelWindow());
3364                 }
3365                 else
3366                 {
3367                     if ( !event.ShiftDown() && !event.CmdDown() )
3368                         ClearSelection();
3369                     if ( m_selection )
3370                     {
3371                         if ( event.ShiftDown() )
3372                         {
3373                             m_selection->SelectBlock
3374                                          (
3375                                             0, m_currentCellCoords.GetCol(),
3376                                             GetNumberRows() - 1, col,
3377                                             event
3378                                          );
3379                         }
3380                         else
3381                         {
3382                             m_selection->SelectCol(col, event);
3383                         }
3384                     }
3385
3386                     ChangeCursorMode(WXGRID_CURSOR_SELECT_COL, GetColLabelWindow());
3387                 }
3388             }
3389         }
3390     }
3391
3392     // ------------ Left double click
3393     //
3394     if ( event.LeftDClick() )
3395     {
3396         const int colEdge = XToEdgeOfCol(x);
3397         if ( colEdge == -1 )
3398         {
3399             if ( col >= 0 &&
3400                  ! SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, -1, col, event ) )
3401             {
3402                 // no default action at the moment
3403             }
3404         }
3405         else
3406         {
3407             // adjust column width depending on label text
3408             //
3409             // TODO: generate RESIZING event, see #10754
3410             AutoSizeColLabelSize( colEdge );
3411
3412             SendGridSizeEvent(wxEVT_GRID_COL_SIZE, -1, colEdge, event);
3413
3414             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3415             m_dragLastPos = -1;
3416         }
3417     }
3418
3419     // ------------ Left button released
3420     //
3421     else if ( event.LeftUp() )
3422     {
3423         switch ( m_cursorMode )
3424         {
3425             case WXGRID_CURSOR_RESIZE_COL:
3426                 DoEndDragResizeCol(event);
3427                 break;
3428
3429             case WXGRID_CURSOR_MOVE_COL:
3430                 if ( m_dragLastPos == -1 || col == m_dragRowOrCol )
3431                 {
3432                     // the column didn't actually move anywhere
3433                     if ( col != -1 )
3434                         DoColHeaderClick(col);
3435                     m_colWindow->Refresh();   // "unpress" the column
3436                 }
3437                 else
3438                 {
3439                     // get the position of the column we're over
3440                     int pos = XToPos(x);
3441
3442                     // we may need to adjust the drop position but don't bother
3443                     // checking for it if we can't anyhow
3444                     if ( pos > 1 )
3445                     {
3446                         // also find the index of the column we're over: notice
3447                         // that the existing "col" variable may be invalid but
3448                         // we need a valid one here
3449                         const int colValid = GetColAt(pos);
3450
3451                         // if we're on the "near" (usually left but right in
3452                         // RTL case) part of the column, the actual position we
3453                         // should be placed in is actually the one before it
3454                         bool onNearPart;
3455                         const int middle = GetColLeft(colValid) +
3456                                                 GetColWidth(colValid)/2;
3457                         if ( GetLayoutDirection() == wxLayout_LeftToRight )
3458                             onNearPart = (x <= middle);
3459                         else // wxLayout_RightToLeft
3460                             onNearPart = (x > middle);
3461
3462                         if ( onNearPart )
3463                             pos--;
3464                     }
3465
3466                     DoEndMoveCol(pos);
3467                 }
3468                 break;
3469
3470             case WXGRID_CURSOR_SELECT_COL:
3471             case WXGRID_CURSOR_SELECT_CELL:
3472             case WXGRID_CURSOR_RESIZE_ROW:
3473             case WXGRID_CURSOR_SELECT_ROW:
3474                 if ( col != -1 )
3475                     DoColHeaderClick(col);
3476                 break;
3477         }
3478
3479         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3480         m_dragLastPos = -1;
3481     }
3482
3483     // ------------ Right button down
3484     //
3485     else if ( event.RightDown() )
3486     {
3487         if ( col >= 0 &&
3488              !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, -1, col, event ) )
3489         {
3490             // no default action at the moment
3491         }
3492     }
3493
3494     // ------------ Right double click
3495     //
3496     else if ( event.RightDClick() )
3497     {
3498         if ( col >= 0 &&
3499              !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, -1, col, event ) )
3500         {
3501             // no default action at the moment
3502         }
3503     }
3504
3505     // ------------ No buttons down and mouse moving
3506     //
3507     else if ( event.Moving() )
3508     {
3509         m_dragRowOrCol = XToEdgeOfCol( x );
3510         if ( m_dragRowOrCol >= 0 )
3511         {
3512             if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3513             {
3514                 if ( CanDragColSize(m_dragRowOrCol) )
3515                     ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, GetColLabelWindow(), false);
3516             }
3517         }
3518         else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
3519         {
3520             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow(), false);
3521         }
3522     }
3523 }
3524
3525 void wxGrid::ProcessCornerLabelMouseEvent( wxMouseEvent& event )
3526 {
3527     if ( event.LeftDown() )
3528     {
3529         // indicate corner label by having both row and
3530         // col args == -1
3531         //
3532         if ( !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, -1, -1, event ) )
3533         {
3534             SelectAll();
3535         }
3536     }
3537     else if ( event.LeftDClick() )
3538     {
3539         SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, -1, -1, event );
3540     }
3541     else if ( event.RightDown() )
3542     {
3543         if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, -1, -1, event ) )
3544         {
3545             // no default action at the moment
3546         }
3547     }
3548     else if ( event.RightDClick() )
3549     {
3550         if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, -1, -1, event ) )
3551         {
3552             // no default action at the moment
3553         }
3554     }
3555 }
3556
3557 void wxGrid::CancelMouseCapture()
3558 {
3559     // cancel operation currently in progress, whatever it is
3560     if ( m_winCapture )
3561     {
3562         m_isDragging = false;
3563         m_startDragPos = wxDefaultPosition;
3564
3565         m_cursorMode = WXGRID_CURSOR_SELECT_CELL;
3566         m_winCapture->SetCursor( *wxSTANDARD_CURSOR );
3567         m_winCapture = NULL;
3568
3569         // remove traces of whatever we drew on screen
3570         Refresh();
3571     }
3572 }
3573
3574 void wxGrid::ChangeCursorMode(CursorMode mode,
3575                               wxWindow *win,
3576                               bool captureMouse)
3577 {
3578 #if wxUSE_LOG_TRACE
3579     static const wxChar *const cursorModes[] =
3580     {
3581         wxT("SELECT_CELL"),
3582         wxT("RESIZE_ROW"),
3583         wxT("RESIZE_COL"),
3584         wxT("SELECT_ROW"),
3585         wxT("SELECT_COL"),
3586         wxT("MOVE_COL"),
3587     };
3588
3589     wxLogTrace(wxT("grid"),
3590                wxT("wxGrid cursor mode (mouse capture for %s): %s -> %s"),
3591                win == m_colWindow ? wxT("colLabelWin")
3592                                   : win ? wxT("rowLabelWin")
3593                                         : wxT("gridWin"),
3594                cursorModes[m_cursorMode], cursorModes[mode]);
3595 #endif // wxUSE_LOG_TRACE
3596
3597     if ( mode == m_cursorMode &&
3598          win == m_winCapture &&
3599          captureMouse == (m_winCapture != NULL))
3600         return;
3601
3602     if ( !win )
3603     {
3604         // by default use the grid itself
3605         win = m_gridWin;
3606     }
3607
3608     if ( m_winCapture )
3609     {
3610         m_winCapture->ReleaseMouse();
3611         m_winCapture = NULL;
3612     }
3613
3614     m_cursorMode = mode;
3615
3616     switch ( m_cursorMode )
3617     {
3618         case WXGRID_CURSOR_RESIZE_ROW:
3619             win->SetCursor( m_rowResizeCursor );
3620             break;
3621
3622         case WXGRID_CURSOR_RESIZE_COL:
3623             win->SetCursor( m_colResizeCursor );
3624             break;
3625
3626         case WXGRID_CURSOR_MOVE_COL:
3627             win->SetCursor( wxCursor(wxCURSOR_HAND) );
3628             break;
3629
3630         default:
3631             win->SetCursor( *wxSTANDARD_CURSOR );
3632             break;
3633     }
3634
3635     // we need to capture mouse when resizing
3636     bool resize = m_cursorMode == WXGRID_CURSOR_RESIZE_ROW ||
3637                   m_cursorMode == WXGRID_CURSOR_RESIZE_COL;
3638
3639     if ( captureMouse && resize )
3640     {
3641         win->CaptureMouse();
3642         m_winCapture = win;
3643     }
3644 }
3645
3646 // ----------------------------------------------------------------------------
3647 // grid mouse event processing
3648 // ----------------------------------------------------------------------------
3649
3650 void
3651 wxGrid::DoGridCellDrag(wxMouseEvent& event,
3652                        const wxGridCellCoords& coords,
3653                        bool isFirstDrag)
3654 {
3655     if ( coords == wxGridNoCellCoords )
3656         return; // we're outside any valid cell
3657
3658     // Hide the edit control, so it won't interfere with drag-shrinking.
3659     if ( IsCellEditControlShown() )
3660     {
3661         HideCellEditControl();
3662         SaveEditControlValue();
3663     }
3664
3665     switch ( event.GetModifiers() )
3666     {
3667         case wxMOD_CONTROL:
3668             if ( m_selectedBlockCorner == wxGridNoCellCoords)
3669                 m_selectedBlockCorner = coords;
3670             UpdateBlockBeingSelected(m_selectedBlockCorner, coords);
3671             break;
3672
3673         case wxMOD_NONE:
3674             if ( CanDragCell() )
3675             {
3676                 if ( isFirstDrag )
3677                 {
3678                     if ( m_selectedBlockCorner == wxGridNoCellCoords)
3679                         m_selectedBlockCorner = coords;
3680
3681                     SendEvent(wxEVT_GRID_CELL_BEGIN_DRAG, coords, event);
3682                     return;
3683                 }
3684             }
3685
3686             UpdateBlockBeingSelected(m_currentCellCoords, coords);
3687             break;
3688
3689         default:
3690             // we don't handle the other key modifiers
3691             event.Skip();
3692     }
3693 }
3694
3695 void wxGrid::DoGridLineDrag(wxMouseEvent& event, const wxGridOperations& oper)
3696 {
3697     wxClientDC dc(m_gridWin);
3698     PrepareDC(dc);
3699     dc.SetLogicalFunction(wxINVERT);
3700
3701     const wxRect rectWin(CalcUnscrolledPosition(wxPoint(0, 0)),
3702                          m_gridWin->GetClientSize());
3703
3704     // erase the previously drawn line, if any
3705     if ( m_dragLastPos >= 0 )
3706         oper.DrawParallelLineInRect(dc, rectWin, m_dragLastPos);
3707
3708     // we need the vertical position for rows and horizontal for columns here
3709     m_dragLastPos = oper.Dual().Select(CalcUnscrolledPosition(event.GetPosition()));
3710
3711     // don't allow resizing beneath the minimal size
3712     const int posMin = oper.GetLineStartPos(this, m_dragRowOrCol) +
3713                         oper.GetMinimalLineSize(this, m_dragRowOrCol);
3714     if ( m_dragLastPos < posMin )
3715         m_dragLastPos = posMin;
3716
3717     // and draw it at the new position
3718     oper.DrawParallelLineInRect(dc, rectWin, m_dragLastPos);
3719 }
3720
3721 void wxGrid::DoGridDragEvent(wxMouseEvent& event, const wxGridCellCoords& coords)
3722 {
3723     if ( !m_isDragging )
3724     {
3725         // Don't start doing anything until the mouse has been dragged far
3726         // enough
3727         const wxPoint& pt = event.GetPosition();
3728         if ( m_startDragPos == wxDefaultPosition )
3729         {
3730             m_startDragPos = pt;
3731             return;
3732         }
3733
3734         if ( abs(m_startDragPos.x - pt.x) <= DRAG_SENSITIVITY &&
3735                 abs(m_startDragPos.y - pt.y) <= DRAG_SENSITIVITY )
3736             return;
3737     }
3738
3739     const bool isFirstDrag = !m_isDragging;
3740     m_isDragging = true;
3741
3742     switch ( m_cursorMode )
3743     {
3744         case WXGRID_CURSOR_SELECT_CELL:
3745             DoGridCellDrag(event, coords, isFirstDrag);
3746             break;
3747
3748         case WXGRID_CURSOR_RESIZE_ROW:
3749             DoGridLineDrag(event, wxGridRowOperations());
3750             break;
3751
3752         case WXGRID_CURSOR_RESIZE_COL:
3753             DoGridLineDrag(event, wxGridColumnOperations());
3754             break;
3755
3756         default:
3757             event.Skip();
3758     }
3759
3760     if ( isFirstDrag )
3761     {
3762         wxASSERT_MSG( !m_winCapture, "shouldn't capture the mouse twice" );
3763
3764         m_winCapture = m_gridWin;
3765         m_winCapture->CaptureMouse();
3766     }
3767 }
3768
3769 void
3770 wxGrid::DoGridCellLeftDown(wxMouseEvent& event,
3771                            const wxGridCellCoords& coords,
3772                            const wxPoint& pos)
3773 {
3774     if ( SendEvent(wxEVT_GRID_CELL_LEFT_CLICK, coords, event) )
3775     {
3776         // event handled by user code, no need to do anything here
3777         return;
3778     }
3779
3780     if ( !event.CmdDown() )
3781         ClearSelection();
3782
3783     if ( event.ShiftDown() )
3784     {
3785         if ( m_selection )
3786         {
3787             m_selection->SelectBlock(m_currentCellCoords, coords, event);
3788             m_selectedBlockCorner = coords;
3789         }
3790     }
3791     else if ( XToEdgeOfCol(pos.x) < 0 && YToEdgeOfRow(pos.y) < 0 )
3792     {
3793         DisableCellEditControl();
3794         MakeCellVisible( coords );
3795
3796         if ( event.CmdDown() )
3797         {
3798             if ( m_selection )
3799             {
3800                 m_selection->ToggleCellSelection(coords, event);
3801             }
3802
3803             m_selectedBlockTopLeft = wxGridNoCellCoords;
3804             m_selectedBlockBottomRight = wxGridNoCellCoords;
3805             m_selectedBlockCorner = coords;
3806         }
3807         else
3808         {
3809             if ( m_selection )
3810             {
3811                 // In row or column selection mode just clicking on the cell
3812                 // should select the row or column containing it: this is more
3813                 // convenient for the kinds of controls that use such selection
3814                 // mode and is compatible with 2.8 behaviour (see #12062).
3815                 switch ( m_selection->GetSelectionMode() )
3816                 {
3817                     case wxGridSelectCells:
3818                     case wxGridSelectRowsOrColumns:
3819                         // nothing to do in these cases
3820                         break;
3821
3822                     case wxGridSelectRows:
3823                         m_selection->SelectRow(coords.GetRow());
3824                         break;
3825
3826                     case wxGridSelectColumns:
3827                         m_selection->SelectCol(coords.GetCol());
3828                         break;
3829                 }
3830             }
3831
3832             m_waitForSlowClick = m_currentCellCoords == coords &&
3833                                         coords != wxGridNoCellCoords;
3834             SetCurrentCell( coords );
3835         }
3836     }
3837 }
3838
3839 void
3840 wxGrid::DoGridCellLeftDClick(wxMouseEvent& event,
3841                              const wxGridCellCoords& coords,
3842                              const wxPoint& pos)
3843 {
3844     if ( XToEdgeOfCol(pos.x) < 0 && YToEdgeOfRow(pos.y) < 0 )
3845     {
3846         if ( !SendEvent(wxEVT_GRID_CELL_LEFT_DCLICK, coords, event) )
3847         {
3848             // we want double click to select a cell and start editing
3849             // (i.e. to behave in same way as sequence of two slow clicks):
3850             m_waitForSlowClick = true;
3851         }
3852     }
3853 }
3854
3855 void
3856 wxGrid::DoGridCellLeftUp(wxMouseEvent& event, const wxGridCellCoords& coords)
3857 {
3858     if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3859     {
3860         if (m_winCapture)
3861         {
3862             m_winCapture->ReleaseMouse();
3863             m_winCapture = NULL;
3864         }
3865
3866         if ( coords == m_currentCellCoords && m_waitForSlowClick && CanEnableCellControl() )
3867         {
3868             ClearSelection();
3869             EnableCellEditControl();
3870
3871             wxGridCellAttr *attr = GetCellAttr(coords);
3872             wxGridCellEditor *editor = attr->GetEditor(this, coords.GetRow(), coords.GetCol());
3873             editor->StartingClick();
3874             editor->DecRef();
3875             attr->DecRef();
3876
3877             m_waitForSlowClick = false;
3878         }
3879         else if ( m_selectedBlockTopLeft != wxGridNoCellCoords &&
3880              m_selectedBlockBottomRight != wxGridNoCellCoords )
3881         {
3882             if ( m_selection )
3883             {
3884                 m_selection->SelectBlock( m_selectedBlockTopLeft,
3885                                           m_selectedBlockBottomRight,
3886                                           event );
3887             }
3888
3889             m_selectedBlockTopLeft = wxGridNoCellCoords;
3890             m_selectedBlockBottomRight = wxGridNoCellCoords;
3891
3892             // Show the edit control, if it has been hidden for
3893             // drag-shrinking.
3894             ShowCellEditControl();
3895         }
3896     }
3897     else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW )
3898     {
3899         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3900         DoEndDragResizeRow(event);
3901     }
3902     else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_COL )
3903     {
3904         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3905         DoEndDragResizeCol(event);
3906     }
3907
3908     m_dragLastPos = -1;
3909 }
3910
3911 void
3912 wxGrid::DoGridMouseMoveEvent(wxMouseEvent& WXUNUSED(event),
3913                              const wxGridCellCoords& coords,
3914                              const wxPoint& pos)
3915 {
3916     if ( coords.GetRow() < 0 || coords.GetCol() < 0 )
3917     {
3918         // out of grid cell area
3919         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3920         return;
3921     }
3922
3923     int dragRow = YToEdgeOfRow( pos.y );
3924     int dragCol = XToEdgeOfCol( pos.x );
3925
3926     // Dragging on the corner of a cell to resize in both
3927     // directions is not implemented yet...
3928     //
3929     if ( dragRow >= 0 && dragCol >= 0 )
3930     {
3931         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3932         return;
3933     }
3934
3935     if ( dragRow >= 0 && CanDragGridSize() && CanDragRowSize(dragRow) )
3936     {
3937         if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3938         {
3939             m_dragRowOrCol = dragRow;
3940             ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, NULL, false);
3941         }
3942     }
3943     // When using the native header window we can only resize the columns by
3944     // dragging the dividers in it because we can't make it enter into the
3945     // column resizing mode programmatically
3946     else if ( dragCol >= 0 && !m_useNativeHeader &&
3947                 CanDragGridSize() && CanDragColSize(dragCol) )
3948     {
3949         if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3950         {
3951             m_dragRowOrCol = dragCol;
3952             ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, NULL, false);
3953         }
3954     }
3955     else // Neither on a row or col edge
3956     {
3957         if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
3958         {
3959             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3960         }
3961     }
3962 }
3963
3964 void wxGrid::ProcessGridCellMouseEvent(wxMouseEvent& event)
3965 {
3966     if ( event.Entering() || event.Leaving() )
3967     {
3968         // we don't care about these events but we must not reset m_isDragging
3969         // if they happen so return before anything else is done
3970         event.Skip();
3971         return;
3972     }
3973
3974     const wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
3975
3976     // coordinates of the cell under mouse
3977     wxGridCellCoords coords = XYToCell(pos);
3978
3979     int cell_rows, cell_cols;
3980     GetCellSize( coords.GetRow(), coords.GetCol(), &cell_rows, &cell_cols );
3981     if ( (cell_rows < 0) || (cell_cols < 0) )
3982     {
3983         coords.SetRow(coords.GetRow() + cell_rows);
3984         coords.SetCol(coords.GetCol() + cell_cols);
3985     }
3986
3987     if ( event.Dragging() )
3988     {
3989         if ( event.LeftIsDown() )
3990             DoGridDragEvent(event, coords);
3991         else
3992             event.Skip();
3993         return;
3994     }
3995
3996     m_isDragging = false;
3997     m_startDragPos = wxDefaultPosition;
3998
3999     // deal with various button presses
4000     if ( event.IsButton() )
4001     {
4002         if ( coords != wxGridNoCellCoords )
4003         {
4004             DisableCellEditControl();
4005
4006             if ( event.LeftDown() )
4007                 DoGridCellLeftDown(event, coords, pos);
4008             else if ( event.LeftDClick() )
4009                 DoGridCellLeftDClick(event, coords, pos);
4010             else if ( event.RightDown() )
4011                 SendEvent(wxEVT_GRID_CELL_RIGHT_CLICK, coords, event);
4012             else if ( event.RightDClick() )
4013                 SendEvent(wxEVT_GRID_CELL_RIGHT_DCLICK, coords, event);
4014         }
4015
4016         // this one should be called even if we're not over any cell
4017         if ( event.LeftUp() )
4018         {
4019             DoGridCellLeftUp(event, coords);
4020         }
4021     }
4022     else if ( event.Moving() )
4023     {
4024         DoGridMouseMoveEvent(event, coords, pos);
4025     }
4026     else // unknown mouse event?
4027     {
4028         event.Skip();
4029     }
4030 }
4031
4032 // this function returns true only if the size really changed
4033 bool wxGrid::DoEndDragResizeLine(const wxGridOperations& oper)
4034 {
4035     if ( m_dragLastPos == -1 )
4036         return false;
4037
4038     const wxGridOperations& doper = oper.Dual();
4039
4040     const wxSize size = m_gridWin->GetClientSize();
4041
4042     const wxPoint ptOrigin = CalcUnscrolledPosition(wxPoint(0, 0));
4043
4044     // erase the last line we drew
4045     wxClientDC dc(m_gridWin);
4046     PrepareDC(dc);
4047     dc.SetLogicalFunction(wxINVERT);
4048
4049     const int posLineStart = oper.Select(ptOrigin);
4050     const int posLineEnd = oper.Select(ptOrigin) + oper.Select(size);
4051
4052     oper.DrawParallelLine(dc, posLineStart, posLineEnd, m_dragLastPos);
4053
4054     // temporarily hide the edit control before resizing
4055     HideCellEditControl();
4056     SaveEditControlValue();
4057
4058     // do resize the line
4059     const int lineStart = oper.GetLineStartPos(this, m_dragRowOrCol);
4060     const int lineSizeOld = oper.GetLineSize(this, m_dragRowOrCol);
4061     oper.SetLineSize(this, m_dragRowOrCol,
4062                      wxMax(m_dragLastPos - lineStart,
4063                            oper.GetMinimalLineSize(this, m_dragRowOrCol)));
4064     const bool
4065         sizeChanged = oper.GetLineSize(this, m_dragRowOrCol) != lineSizeOld;
4066
4067     m_dragLastPos = -1;
4068
4069     // refresh now if we're not frozen
4070     if ( !GetBatchCount() )
4071     {
4072         // we need to refresh everything beyond the resized line in the header
4073         // window
4074
4075         // get the position from which to refresh in the other direction
4076         wxRect rect(CellToRect(oper.MakeCoords(m_dragRowOrCol, 0)));
4077         rect.SetPosition(CalcScrolledPosition(rect.GetPosition()));
4078
4079         // we only need the ordinate (for rows) or abscissa (for columns) here,
4080         // and need to cover the entire window in the other direction
4081         oper.Select(rect) = 0;
4082
4083         wxRect rectHeader(rect.GetPosition(),
4084                           oper.MakeSize
4085                                (
4086                                     oper.GetHeaderWindowSize(this),
4087                                     doper.Select(size) - doper.Select(rect)
4088                                ));
4089
4090         oper.GetHeaderWindow(this)->Refresh(true, &rectHeader);
4091
4092
4093         // also refresh the grid window: extend the rectangle
4094         if ( m_table )
4095         {
4096             oper.SelectSize(rect) = oper.Select(size);
4097
4098             int subtractLines = 0;
4099             const int lineStart = doper.PosToLine(this, posLineStart);
4100             if ( lineStart >= 0 )
4101             {
4102                 // ensure that if we have a multi-cell block we redraw all of
4103                 // it by increasing the refresh area to cover it entirely if a
4104                 // part of it is affected
4105                 const int lineEnd = doper.PosToLine(this, posLineEnd, true);
4106                 for ( int line = lineStart; line < lineEnd; line++ )
4107                 {
4108                     int cellLines = oper.Select(
4109                         GetCellSize(oper.MakeCoords(m_dragRowOrCol, line)));
4110                     if ( cellLines < subtractLines )
4111                         subtractLines = cellLines;
4112                 }
4113             }
4114
4115             int startPos =
4116                 oper.GetLineStartPos(this, m_dragRowOrCol + subtractLines);
4117             startPos = doper.CalcScrolledPosition(this, startPos);
4118
4119             doper.Select(rect) = startPos;
4120             doper.SelectSize(rect) = doper.Select(size) - startPos;
4121
4122             m_gridWin->Refresh(false, &rect);
4123         }
4124     }
4125
4126     // show the edit control back again
4127     ShowCellEditControl();
4128
4129     return sizeChanged;
4130 }
4131
4132 void wxGrid::DoEndDragResizeRow(const wxMouseEvent& event)
4133 {
4134     // TODO: generate RESIZING event, see #10754
4135
4136     if ( DoEndDragResizeLine(wxGridRowOperations()) )
4137         SendGridSizeEvent(wxEVT_GRID_ROW_SIZE, m_dragRowOrCol, -1, event);
4138 }
4139
4140 void wxGrid::DoEndDragResizeCol(const wxMouseEvent& event)
4141 {
4142     // TODO: generate RESIZING event, see #10754
4143
4144     if ( DoEndDragResizeLine(wxGridColumnOperations()) )
4145         SendGridSizeEvent(wxEVT_GRID_COL_SIZE, -1, m_dragRowOrCol, event);
4146 }
4147
4148 void wxGrid::DoStartMoveCol(int col)
4149 {
4150     m_dragRowOrCol = col;
4151 }
4152
4153 void wxGrid::DoEndMoveCol(int pos)
4154 {
4155     wxASSERT_MSG( m_dragRowOrCol != -1, "no matching DoStartMoveCol?" );
4156
4157     if ( SendEvent(wxEVT_GRID_COL_MOVE, -1, m_dragRowOrCol) != -1 )
4158         SetColPos(m_dragRowOrCol, pos);
4159     //else: vetoed by user
4160
4161     m_dragRowOrCol = -1;
4162 }
4163
4164 void wxGrid::RefreshAfterColPosChange()
4165 {
4166     // recalculate the column rights as the column positions have changed,
4167     // unless we calculate them dynamically because all columns widths are the
4168     // same and it's easy to do
4169     if ( !m_colWidths.empty() )
4170     {
4171         int colRight = 0;
4172         for ( int colPos = 0; colPos < m_numCols; colPos++ )
4173         {
4174             int colID = GetColAt( colPos );
4175
4176             colRight += m_colWidths[colID];
4177             m_colRights[colID] = colRight;
4178         }
4179     }
4180
4181     // and make the changes visible
4182     if ( m_useNativeHeader )
4183     {
4184         if ( m_colAt.empty() )
4185             GetGridColHeader()->ResetColumnsOrder();
4186         else
4187             GetGridColHeader()->SetColumnsOrder(m_colAt);
4188     }
4189     else
4190     {
4191         m_colWindow->Refresh();
4192     }
4193     m_gridWin->Refresh();
4194 }
4195
4196 void wxGrid::SetColumnsOrder(const wxArrayInt& order)
4197 {
4198     m_colAt = order;
4199
4200     RefreshAfterColPosChange();
4201 }
4202
4203 void wxGrid::SetColPos(int idx, int pos)
4204 {
4205     // we're going to need m_colAt now, initialize it if needed
4206     if ( m_colAt.empty() )
4207     {
4208         m_colAt.reserve(m_numCols);
4209         for ( int i = 0; i < m_numCols; i++ )
4210             m_colAt.push_back(i);
4211     }
4212
4213     wxHeaderCtrl::MoveColumnInOrderArray(m_colAt, idx, pos);
4214
4215     RefreshAfterColPosChange();
4216 }
4217
4218 void wxGrid::ResetColPos()
4219 {
4220     m_colAt.clear();
4221
4222     RefreshAfterColPosChange();
4223 }
4224
4225 void wxGrid::EnableDragColMove( bool enable )
4226 {
4227     if ( m_canDragColMove == enable )
4228         return;
4229
4230     if ( m_useNativeHeader )
4231     {
4232         // update all columns to make them [not] reorderable
4233         GetGridColHeader()->SetColumnCount(m_numCols);
4234     }
4235
4236     m_canDragColMove = enable;
4237
4238     // we use to call ResetColPos() from here if !enable but this doesn't seem
4239     // right as it would mean there would be no way to "freeze" the current
4240     // columns order by disabling moving them after putting them in the desired
4241     // order, whereas now you can always call ResetColPos() manually if needed
4242 }
4243
4244
4245 //
4246 // ------ interaction with data model
4247 //
4248 bool wxGrid::ProcessTableMessage( wxGridTableMessage& msg )
4249 {
4250     switch ( msg.GetId() )
4251     {
4252         case wxGRIDTABLE_REQUEST_VIEW_GET_VALUES:
4253             return GetModelValues();
4254
4255         case wxGRIDTABLE_REQUEST_VIEW_SEND_VALUES:
4256             return SetModelValues();
4257
4258         case wxGRIDTABLE_NOTIFY_ROWS_INSERTED:
4259         case wxGRIDTABLE_NOTIFY_ROWS_APPENDED:
4260         case wxGRIDTABLE_NOTIFY_ROWS_DELETED:
4261         case wxGRIDTABLE_NOTIFY_COLS_INSERTED:
4262         case wxGRIDTABLE_NOTIFY_COLS_APPENDED:
4263         case wxGRIDTABLE_NOTIFY_COLS_DELETED:
4264             return Redimension( msg );
4265
4266         default:
4267             return false;
4268     }
4269 }
4270
4271 // The behaviour of this function depends on the grid table class
4272 // Clear() function. For the default wxGridStringTable class the
4273 // behaviour is to replace all cell contents with wxEmptyString but
4274 // not to change the number of rows or cols.
4275 //
4276 void wxGrid::ClearGrid()
4277 {
4278     if ( m_table )
4279     {
4280         if (IsCellEditControlEnabled())
4281             DisableCellEditControl();
4282
4283         m_table->Clear();
4284         if (!GetBatchCount())
4285             m_gridWin->Refresh();
4286     }
4287 }
4288
4289 bool
4290 wxGrid::DoModifyLines(bool (wxGridTableBase::*funcModify)(size_t, size_t),
4291                       int pos, int num, bool WXUNUSED(updateLabels) )
4292 {
4293     wxCHECK_MSG( m_created, false, "must finish creating the grid first" );
4294
4295     if ( !m_table )
4296         return false;
4297
4298     if ( IsCellEditControlEnabled() )
4299         DisableCellEditControl();
4300
4301     return (m_table->*funcModify)(pos, num);
4302
4303     // the table will have sent the results of the insert row
4304     // operation to this view object as a grid table message
4305 }
4306
4307 bool
4308 wxGrid::DoAppendLines(bool (wxGridTableBase::*funcAppend)(size_t),
4309                       int num, bool WXUNUSED(updateLabels))
4310 {
4311     wxCHECK_MSG( m_created, false, "must finish creating the grid first" );
4312
4313     if ( !m_table )
4314         return false;
4315
4316     return (m_table->*funcAppend)(num);
4317 }
4318
4319 // ----------------------------------------------------------------------------
4320 // event generation helpers
4321 // ----------------------------------------------------------------------------
4322
4323 void
4324 wxGrid::SendGridSizeEvent(wxEventType type,
4325                       int row, int col,
4326                       const wxMouseEvent& mouseEv)
4327 {
4328    int rowOrCol = row == -1 ? col : row;
4329
4330    wxGridSizeEvent gridEvt( GetId(),
4331            type,
4332            this,
4333            rowOrCol,
4334            mouseEv.GetX() + GetRowLabelSize(),
4335            mouseEv.GetY() + GetColLabelSize(),
4336            mouseEv);
4337
4338    GetEventHandler()->ProcessEvent(gridEvt);
4339 }
4340
4341 // Generate a grid event based on a mouse event and return:
4342 //  -1 if the event was vetoed
4343 //  +1 if the event was processed (but not vetoed)
4344 //   0 if the event wasn't handled
4345 int
4346 wxGrid::SendEvent(const wxEventType type,
4347                   int row, int col,
4348                   const wxMouseEvent& mouseEv)
4349 {
4350    bool claimed, vetoed;
4351
4352    if ( type == wxEVT_GRID_RANGE_SELECT )
4353    {
4354        // Right now, it should _never_ end up here!
4355        wxGridRangeSelectEvent gridEvt( GetId(),
4356                type,
4357                this,
4358                m_selectedBlockTopLeft,
4359                m_selectedBlockBottomRight,
4360                true,
4361                mouseEv);
4362
4363        claimed = GetEventHandler()->ProcessEvent(gridEvt);
4364        vetoed = !gridEvt.IsAllowed();
4365    }
4366    else if ( type == wxEVT_GRID_LABEL_LEFT_CLICK ||
4367              type == wxEVT_GRID_LABEL_LEFT_DCLICK ||
4368              type == wxEVT_GRID_LABEL_RIGHT_CLICK ||
4369              type == wxEVT_GRID_LABEL_RIGHT_DCLICK )
4370    {
4371        wxPoint pos = mouseEv.GetPosition();
4372
4373        if ( mouseEv.GetEventObject() == GetGridRowLabelWindow() )
4374            pos.y += GetColLabelSize();
4375        if ( mouseEv.GetEventObject() == GetGridColLabelWindow() )
4376            pos.x += GetRowLabelSize();
4377
4378        wxGridEvent gridEvt( GetId(),
4379                type,
4380                this,
4381                row, col,
4382                pos.x,
4383                pos.y,
4384                false,
4385                mouseEv);
4386        claimed = GetEventHandler()->ProcessEvent(gridEvt);
4387        vetoed = !gridEvt.IsAllowed();
4388    }
4389    else
4390    {
4391        wxGridEvent gridEvt( GetId(),
4392                type,
4393                this,
4394                row, col,
4395                mouseEv.GetX() + GetRowLabelSize(),
4396                mouseEv.GetY() + GetColLabelSize(),
4397                false,
4398                mouseEv);
4399        claimed = GetEventHandler()->ProcessEvent(gridEvt);
4400        vetoed = !gridEvt.IsAllowed();
4401    }
4402
4403    // A Veto'd event may not be `claimed' so test this first
4404    if (vetoed)
4405        return -1;
4406
4407    return claimed ? 1 : 0;
4408 }
4409
4410 // Generate a grid event of specified type, return value same as above
4411 //
4412 int
4413 wxGrid::SendEvent(const wxEventType type, int row, int col, const wxString& s)
4414 {
4415     wxGridEvent gridEvt( GetId(), type, this, row, col );
4416     gridEvt.SetString(s);
4417
4418     const bool claimed = GetEventHandler()->ProcessEvent(gridEvt);
4419
4420     // A Veto'd event may not be `claimed' so test this first
4421     if ( !gridEvt.IsAllowed() )
4422         return -1;
4423
4424     return claimed ? 1 : 0;
4425 }
4426
4427 void wxGrid::OnPaint( wxPaintEvent& WXUNUSED(event) )
4428 {
4429     // needed to prevent zillions of paint events on MSW
4430     wxPaintDC dc(this);
4431 }
4432
4433 void wxGrid::Refresh(bool eraseb, const wxRect* rect)
4434 {
4435     // Don't do anything if between Begin/EndBatch...
4436     // EndBatch() will do all this on the last nested one anyway.
4437     if ( m_created && !GetBatchCount() )
4438     {
4439         // Refresh to get correct scrolled position:
4440         wxScrolledWindow::Refresh(eraseb, rect);
4441
4442         if (rect)
4443         {
4444             int rect_x, rect_y, rectWidth, rectHeight;
4445             int width_label, width_cell, height_label, height_cell;
4446             int x, y;
4447
4448             // Copy rectangle can get scroll offsets..
4449             rect_x = rect->GetX();
4450             rect_y = rect->GetY();
4451             rectWidth = rect->GetWidth();
4452             rectHeight = rect->GetHeight();
4453
4454             width_label = m_rowLabelWidth - rect_x;
4455             if (width_label > rectWidth)
4456                 width_label = rectWidth;
4457
4458             height_label = m_colLabelHeight - rect_y;
4459             if (height_label > rectHeight)
4460                 height_label = rectHeight;
4461
4462             if (rect_x > m_rowLabelWidth)
4463             {
4464                 x = rect_x - m_rowLabelWidth;
4465                 width_cell = rectWidth;
4466             }
4467             else
4468             {
4469                 x = 0;
4470                 width_cell = rectWidth - (m_rowLabelWidth - rect_x);
4471             }
4472
4473             if (rect_y > m_colLabelHeight)
4474             {
4475                 y = rect_y - m_colLabelHeight;
4476                 height_cell = rectHeight;
4477             }
4478             else
4479             {
4480                 y = 0;
4481                 height_cell = rectHeight - (m_colLabelHeight - rect_y);
4482             }
4483
4484             // Paint corner label part intersecting rect.
4485             if ( width_label > 0 && height_label > 0 )
4486             {
4487                 wxRect anotherrect(rect_x, rect_y, width_label, height_label);
4488                 m_cornerLabelWin->Refresh(eraseb, &anotherrect);
4489             }
4490
4491             // Paint col labels part intersecting rect.
4492             if ( width_cell > 0 && height_label > 0 )
4493             {
4494                 wxRect anotherrect(x, rect_y, width_cell, height_label);
4495                 m_colWindow->Refresh(eraseb, &anotherrect);
4496             }
4497
4498             // Paint row labels part intersecting rect.
4499             if ( width_label > 0 && height_cell > 0 )
4500             {
4501                 wxRect anotherrect(rect_x, y, width_label, height_cell);
4502                 m_rowLabelWin->Refresh(eraseb, &anotherrect);
4503             }
4504
4505             // Paint cell area part intersecting rect.
4506             if ( width_cell > 0 && height_cell > 0 )
4507             {
4508                 wxRect anotherrect(x, y, width_cell, height_cell);
4509                 m_gridWin->Refresh(eraseb, &anotherrect);
4510             }
4511         }
4512         else
4513         {
4514             m_cornerLabelWin->Refresh(eraseb, NULL);
4515             m_colWindow->Refresh(eraseb, NULL);
4516             m_rowLabelWin->Refresh(eraseb, NULL);
4517             m_gridWin->Refresh(eraseb, NULL);
4518         }
4519     }
4520 }
4521
4522 void wxGrid::OnSize(wxSizeEvent& WXUNUSED(event))
4523 {
4524     if (m_targetWindow != this) // check whether initialisation has been done
4525     {
4526         // reposition our children windows
4527         CalcWindowSizes();
4528     }
4529 }
4530
4531 void wxGrid::OnKeyDown( wxKeyEvent& event )
4532 {
4533     if ( m_inOnKeyDown )
4534     {
4535         // shouldn't be here - we are going round in circles...
4536         //
4537         wxFAIL_MSG( wxT("wxGrid::OnKeyDown called while already active") );
4538     }
4539
4540     m_inOnKeyDown = true;
4541
4542     // propagate the event up and see if it gets processed
4543     wxWindow *parent = GetParent();
4544     wxKeyEvent keyEvt( event );
4545     keyEvt.SetEventObject( parent );
4546
4547     if ( !parent->GetEventHandler()->ProcessEvent( keyEvt ) )
4548     {
4549         if (GetLayoutDirection() == wxLayout_RightToLeft)
4550         {
4551             if (event.GetKeyCode() == WXK_RIGHT)
4552                 event.m_keyCode = WXK_LEFT;
4553             else if (event.GetKeyCode() == WXK_LEFT)
4554                 event.m_keyCode = WXK_RIGHT;
4555         }
4556
4557         // try local handlers
4558         switch ( event.GetKeyCode() )
4559         {
4560             case WXK_UP:
4561                 if ( event.ControlDown() )
4562                     MoveCursorUpBlock( event.ShiftDown() );
4563                 else
4564                     MoveCursorUp( event.ShiftDown() );
4565                 break;
4566
4567             case WXK_DOWN:
4568                 if ( event.ControlDown() )
4569                     MoveCursorDownBlock( event.ShiftDown() );
4570                 else
4571                     MoveCursorDown( event.ShiftDown() );
4572                 break;
4573
4574             case WXK_LEFT:
4575                 if ( event.ControlDown() )
4576                     MoveCursorLeftBlock( event.ShiftDown() );
4577                 else
4578                     MoveCursorLeft( event.ShiftDown() );
4579                 break;
4580
4581             case WXK_RIGHT:
4582                 if ( event.ControlDown() )
4583                     MoveCursorRightBlock( event.ShiftDown() );
4584                 else
4585                     MoveCursorRight( event.ShiftDown() );
4586                 break;
4587
4588             case WXK_RETURN:
4589             case WXK_NUMPAD_ENTER:
4590                 if ( event.ControlDown() )
4591                 {
4592                     event.Skip();  // to let the edit control have the return
4593                 }
4594                 else
4595                 {
4596                     if ( GetGridCursorRow() < GetNumberRows()-1 )
4597                     {
4598                         MoveCursorDown( event.ShiftDown() );
4599                     }
4600                     else
4601                     {
4602                         // at the bottom of a column
4603                         DisableCellEditControl();
4604                     }
4605                 }
4606                 break;
4607
4608             case WXK_ESCAPE:
4609                 ClearSelection();
4610                 break;
4611
4612             case WXK_TAB:
4613                 if (event.ShiftDown())
4614                 {
4615                     if ( GetGridCursorCol() > 0 )
4616                     {
4617                         MoveCursorLeft( false );
4618                     }
4619                     else
4620                     {
4621                         // at left of grid
4622                         DisableCellEditControl();
4623                     }
4624                 }
4625                 else
4626                 {
4627                     if ( GetGridCursorCol() < GetNumberCols() - 1 )
4628                     {
4629                         MoveCursorRight( false );
4630                     }
4631                     else
4632                     {
4633                         // at right of grid
4634                         DisableCellEditControl();
4635                     }
4636                 }
4637                 break;
4638
4639             case WXK_HOME:
4640                 GoToCell(event.ControlDown() ? 0
4641                                              : m_currentCellCoords.GetRow(),
4642                          0);
4643                 break;
4644
4645             case WXK_END:
4646                 GoToCell(event.ControlDown() ? m_numRows - 1
4647                                              : m_currentCellCoords.GetRow(),
4648                          m_numCols - 1);
4649                 break;
4650
4651             case WXK_PAGEUP:
4652                 MovePageUp();
4653                 break;
4654
4655             case WXK_PAGEDOWN:
4656                 MovePageDown();
4657                 break;
4658
4659             case WXK_SPACE:
4660                 // Ctrl-Space selects the current column, Shift-Space -- the
4661                 // current row and Ctrl-Shift-Space -- everything
4662                 switch ( m_selection ? event.GetModifiers() : wxMOD_NONE )
4663                 {
4664                     case wxMOD_CONTROL:
4665                         m_selection->SelectCol(m_currentCellCoords.GetCol());
4666                         break;
4667
4668                     case wxMOD_SHIFT:
4669                         m_selection->SelectRow(m_currentCellCoords.GetRow());
4670                         break;
4671
4672                     case wxMOD_CONTROL | wxMOD_SHIFT:
4673                         m_selection->SelectBlock(0, 0,
4674                                                  m_numRows - 1, m_numCols - 1);
4675                         break;
4676
4677                     case wxMOD_NONE:
4678                         if ( !IsEditable() )
4679                         {
4680                             MoveCursorRight(false);
4681                             break;
4682                         }
4683                         //else: fall through
4684
4685                     default:
4686                         event.Skip();
4687                 }
4688                 break;
4689
4690             default:
4691                 event.Skip();
4692                 break;
4693         }
4694     }
4695
4696     m_inOnKeyDown = false;
4697 }
4698
4699 void wxGrid::OnKeyUp( wxKeyEvent& event )
4700 {
4701     // try local handlers
4702     //
4703     if ( event.GetKeyCode() == WXK_SHIFT )
4704     {
4705         if ( m_selectedBlockTopLeft != wxGridNoCellCoords &&
4706              m_selectedBlockBottomRight != wxGridNoCellCoords )
4707         {
4708             if ( m_selection )
4709             {
4710                 m_selection->SelectBlock(
4711                     m_selectedBlockTopLeft,
4712                     m_selectedBlockBottomRight,
4713                     event);
4714             }
4715         }
4716
4717         m_selectedBlockTopLeft = wxGridNoCellCoords;
4718         m_selectedBlockBottomRight = wxGridNoCellCoords;
4719         m_selectedBlockCorner = wxGridNoCellCoords;
4720     }
4721 }
4722
4723 void wxGrid::OnChar( wxKeyEvent& event )
4724 {
4725     // is it possible to edit the current cell at all?
4726     if ( !IsCellEditControlEnabled() && CanEnableCellControl() )
4727     {
4728         // yes, now check whether the cells editor accepts the key
4729         int row = m_currentCellCoords.GetRow();
4730         int col = m_currentCellCoords.GetCol();
4731         wxGridCellAttr *attr = GetCellAttr(row, col);
4732         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
4733
4734         // <F2> is special and will always start editing, for
4735         // other keys - ask the editor itself
4736         if ( (event.GetKeyCode() == WXK_F2 && !event.HasModifiers())
4737              || editor->IsAcceptedKey(event) )
4738         {
4739             // ensure cell is visble
4740             MakeCellVisible(row, col);
4741             EnableCellEditControl();
4742
4743             // a problem can arise if the cell is not completely
4744             // visible (even after calling MakeCellVisible the
4745             // control is not created and calling StartingKey will
4746             // crash the app
4747             if ( event.GetKeyCode() != WXK_F2 && editor->IsCreated() && m_cellEditCtrlEnabled )
4748                 editor->StartingKey(event);
4749         }
4750         else
4751         {
4752             event.Skip();
4753         }
4754
4755         editor->DecRef();
4756         attr->DecRef();
4757     }
4758     else
4759     {
4760         event.Skip();
4761     }
4762 }
4763
4764 void wxGrid::OnEraseBackground(wxEraseEvent&)
4765 {
4766 }
4767
4768 bool wxGrid::SetCurrentCell( const wxGridCellCoords& coords )
4769 {
4770     if ( SendEvent(wxEVT_GRID_SELECT_CELL, coords) == -1 )
4771     {
4772         // the event has been vetoed - do nothing
4773         return false;
4774     }
4775
4776 #if !defined(__WXMAC__)
4777     wxClientDC dc( m_gridWin );
4778     PrepareDC( dc );
4779 #endif
4780
4781     if ( m_currentCellCoords != wxGridNoCellCoords )
4782     {
4783         DisableCellEditControl();
4784
4785         if ( IsVisible( m_currentCellCoords, false ) )
4786         {
4787             wxRect r;
4788             r = BlockToDeviceRect( m_currentCellCoords, m_currentCellCoords );
4789             if ( !m_gridLinesEnabled )
4790             {
4791                 r.x--;
4792                 r.y--;
4793                 r.width++;
4794                 r.height++;
4795             }
4796
4797             wxGridCellCoordsArray cells = CalcCellsExposed( r );
4798
4799             // Otherwise refresh redraws the highlight!
4800             m_currentCellCoords = coords;
4801
4802 #if defined(__WXMAC__)
4803             m_gridWin->Refresh(true /*, & r */);
4804 #else
4805             DrawGridCellArea( dc, cells );
4806             DrawAllGridLines( dc, r );
4807 #endif
4808         }
4809     }
4810
4811     m_currentCellCoords = coords;
4812
4813     wxGridCellAttr *attr = GetCellAttr( coords );
4814 #if !defined(__WXMAC__)
4815     DrawCellHighlight( dc, attr );
4816 #endif
4817     attr->DecRef();
4818
4819     return true;
4820 }
4821
4822 void
4823 wxGrid::UpdateBlockBeingSelected(int topRow, int leftCol,
4824                                  int bottomRow, int rightCol)
4825 {
4826     MakeCellVisible(m_selectedBlockCorner);
4827     m_selectedBlockCorner = wxGridCellCoords(bottomRow, rightCol);
4828
4829     if ( m_selection )
4830     {
4831         switch ( m_selection->GetSelectionMode() )
4832         {
4833             default:
4834                 wxFAIL_MSG( "unknown selection mode" );
4835                 // fall through
4836
4837             case wxGridSelectCells:
4838                 // arbitrary blocks selection allowed so just use the cell
4839                 // coordinates as is
4840                 break;
4841
4842             case wxGridSelectRows:
4843                 // only full rows selection allowd, ensure that we do select
4844                 // full rows
4845                 leftCol = 0;
4846                 rightCol = GetNumberCols() - 1;
4847                 break;
4848
4849             case wxGridSelectColumns:
4850                 // same as above but for columns
4851                 topRow = 0;
4852                 bottomRow = GetNumberRows() - 1;
4853                 break;
4854
4855             case wxGridSelectRowsOrColumns:
4856                 // in this mode we can select only full rows or full columns so
4857                 // it doesn't make sense to select blocks at all (and we can't
4858                 // extend the block because there is no preferred direction, we
4859                 // could only extend it to cover the entire grid but this is
4860                 // not useful)
4861                 return;
4862         }
4863     }
4864
4865     EnsureFirstLessThanSecond(topRow, bottomRow);
4866     EnsureFirstLessThanSecond(leftCol, rightCol);
4867
4868     wxGridCellCoords updateTopLeft = wxGridCellCoords(topRow, leftCol),
4869                      updateBottomRight = wxGridCellCoords(bottomRow, rightCol);
4870
4871     // First the case that we selected a completely new area
4872     if ( m_selectedBlockTopLeft == wxGridNoCellCoords ||
4873          m_selectedBlockBottomRight == wxGridNoCellCoords )
4874     {
4875         wxRect rect;
4876         rect = BlockToDeviceRect( wxGridCellCoords ( topRow, leftCol ),
4877                                   wxGridCellCoords ( bottomRow, rightCol ) );
4878         m_gridWin->Refresh( false, &rect );
4879     }
4880
4881     // Now handle changing an existing selection area.
4882     else if ( m_selectedBlockTopLeft != updateTopLeft ||
4883               m_selectedBlockBottomRight != updateBottomRight )
4884     {
4885         // Compute two optimal update rectangles:
4886         // Either one rectangle is a real subset of the
4887         // other, or they are (almost) disjoint!
4888         wxRect  rect[4];
4889         bool    need_refresh[4];
4890         need_refresh[0] =
4891         need_refresh[1] =
4892         need_refresh[2] =
4893         need_refresh[3] = false;
4894         int     i;
4895
4896         // Store intermediate values
4897         wxCoord oldLeft = m_selectedBlockTopLeft.GetCol();
4898         wxCoord oldTop = m_selectedBlockTopLeft.GetRow();
4899         wxCoord oldRight = m_selectedBlockBottomRight.GetCol();
4900         wxCoord oldBottom = m_selectedBlockBottomRight.GetRow();
4901
4902         // Determine the outer/inner coordinates.
4903         EnsureFirstLessThanSecond(oldLeft, leftCol);
4904         EnsureFirstLessThanSecond(oldTop, topRow);
4905         EnsureFirstLessThanSecond(rightCol, oldRight);
4906         EnsureFirstLessThanSecond(bottomRow, oldBottom);
4907
4908         // Now, either the stuff marked old is the outer
4909         // rectangle or we don't have a situation where one
4910         // is contained in the other.
4911
4912         if ( oldLeft < leftCol )
4913         {
4914             // Refresh the newly selected or deselected
4915             // area to the left of the old or new selection.
4916             need_refresh[0] = true;
4917             rect[0] = BlockToDeviceRect(
4918                 wxGridCellCoords( oldTop,  oldLeft ),
4919                 wxGridCellCoords( oldBottom, leftCol - 1 ) );
4920         }
4921
4922         if ( oldTop < topRow )
4923         {
4924             // Refresh the newly selected or deselected
4925             // area above the old or new selection.
4926             need_refresh[1] = true;
4927             rect[1] = BlockToDeviceRect(
4928                 wxGridCellCoords( oldTop, leftCol ),
4929                 wxGridCellCoords( topRow - 1, rightCol ) );
4930         }
4931
4932         if ( oldRight > rightCol )
4933         {
4934             // Refresh the newly selected or deselected
4935             // area to the right of the old or new selection.
4936             need_refresh[2] = true;
4937             rect[2] = BlockToDeviceRect(
4938                 wxGridCellCoords( oldTop, rightCol + 1 ),
4939                 wxGridCellCoords( oldBottom, oldRight ) );
4940         }
4941
4942         if ( oldBottom > bottomRow )
4943         {
4944             // Refresh the newly selected or deselected
4945             // area below the old or new selection.
4946             need_refresh[3] = true;
4947             rect[3] = BlockToDeviceRect(
4948                 wxGridCellCoords( bottomRow + 1, leftCol ),
4949                 wxGridCellCoords( oldBottom, rightCol ) );
4950         }
4951
4952         // various Refresh() calls
4953         for (i = 0; i < 4; i++ )
4954             if ( need_refresh[i] && rect[i] != wxGridNoCellRect )
4955                 m_gridWin->Refresh( false, &(rect[i]) );
4956     }
4957
4958     // change selection
4959     m_selectedBlockTopLeft = updateTopLeft;
4960     m_selectedBlockBottomRight = updateBottomRight;
4961 }
4962
4963 //
4964 // ------ functions to get/send data (see also public functions)
4965 //
4966
4967 bool wxGrid::GetModelValues()
4968 {
4969     // Hide the editor, so it won't hide a changed value.
4970     HideCellEditControl();
4971
4972     if ( m_table )
4973     {
4974         // all we need to do is repaint the grid
4975         //
4976         m_gridWin->Refresh();
4977         return true;
4978     }
4979
4980     return false;
4981 }
4982
4983 bool wxGrid::SetModelValues()
4984 {
4985     int row, col;
4986
4987     // Disable the editor, so it won't hide a changed value.
4988     // Do we also want to save the current value of the editor first?
4989     // I think so ...
4990     DisableCellEditControl();
4991
4992     if ( m_table )
4993     {
4994         for ( row = 0; row < m_numRows; row++ )
4995         {
4996             for ( col = 0; col < m_numCols; col++ )
4997             {
4998                 m_table->SetValue( row, col, GetCellValue(row, col) );
4999             }
5000         }
5001
5002         return true;
5003     }
5004
5005     return false;
5006 }
5007
5008 // Note - this function only draws cells that are in the list of
5009 // exposed cells (usually set from the update region by
5010 // CalcExposedCells)
5011 //
5012 void wxGrid::DrawGridCellArea( wxDC& dc, const wxGridCellCoordsArray& cells )
5013 {
5014     if ( !m_numRows || !m_numCols )
5015         return;
5016
5017     int i, numCells = cells.GetCount();
5018     int row, col, cell_rows, cell_cols;
5019     wxGridCellCoordsArray redrawCells;
5020
5021     for ( i = numCells - 1; i >= 0; i-- )
5022     {
5023         row = cells[i].GetRow();
5024         col = cells[i].GetCol();
5025         GetCellSize( row, col, &cell_rows, &cell_cols );
5026
5027         // If this cell is part of a multicell block, find owner for repaint
5028         if ( cell_rows <= 0 || cell_cols <= 0 )
5029         {
5030             wxGridCellCoords cell( row + cell_rows, col + cell_cols );
5031             bool marked = false;
5032             for ( int j = 0; j < numCells; j++ )
5033             {
5034                 if ( cell == cells[j] )
5035                 {
5036                     marked = true;
5037                     break;
5038                 }
5039             }
5040
5041             if (!marked)
5042             {
5043                 int count = redrawCells.GetCount();
5044                 for (int j = 0; j < count; j++)
5045                 {
5046                     if ( cell == redrawCells[j] )
5047                     {
5048                         marked = true;
5049                         break;
5050                     }
5051                 }
5052
5053                 if (!marked)
5054                     redrawCells.Add( cell );
5055             }
5056
5057             // don't bother drawing this cell
5058             continue;
5059         }
5060
5061         // If this cell is empty, find cell to left that might want to overflow
5062         if (m_table && m_table->IsEmptyCell(row, col))
5063         {
5064             for ( int l = 0; l < cell_rows; l++ )
5065             {
5066                 // find a cell in this row to leave already marked for repaint
5067                 int left = col;
5068                 for (int k = 0; k < int(redrawCells.GetCount()); k++)
5069                     if ((redrawCells[k].GetCol() < left) &&
5070                         (redrawCells[k].GetRow() == row))
5071                     {
5072                         left = redrawCells[k].GetCol();
5073                     }
5074
5075                 if (left == col)
5076                     left = 0; // oh well
5077
5078                 for (int j = col - 1; j >= left; j--)
5079                 {
5080                     if (!m_table->IsEmptyCell(row + l, j))
5081                     {
5082                         if (GetCellOverflow(row + l, j))
5083                         {
5084                             wxGridCellCoords cell(row + l, j);
5085                             bool marked = false;
5086
5087                             for (int k = 0; k < numCells; k++)
5088                             {
5089                                 if ( cell == cells[k] )
5090                                 {
5091                                     marked = true;
5092                                     break;
5093                                 }
5094                             }
5095
5096                             if (!marked)
5097                             {
5098                                 int count = redrawCells.GetCount();
5099                                 for (int k = 0; k < count; k++)
5100                                 {
5101                                     if ( cell == redrawCells[k] )
5102                                     {
5103                                         marked = true;
5104                                         break;
5105                                     }
5106                                 }
5107                                 if (!marked)
5108                                     redrawCells.Add( cell );
5109                             }
5110                         }
5111                         break;
5112                     }
5113                 }
5114             }
5115         }
5116
5117         DrawCell( dc, cells[i] );
5118     }
5119
5120     numCells = redrawCells.GetCount();
5121
5122     for ( i = numCells - 1; i >= 0; i-- )
5123     {
5124         DrawCell( dc, redrawCells[i] );
5125     }
5126 }
5127
5128 void wxGrid::DrawGridSpace( wxDC& dc )
5129 {
5130   int cw, ch;
5131   m_gridWin->GetClientSize( &cw, &ch );
5132
5133   int right, bottom;
5134   CalcUnscrolledPosition( cw, ch, &right, &bottom );
5135
5136   int rightCol = m_numCols > 0 ? GetColRight(GetColAt( m_numCols - 1 )) : 0;
5137   int bottomRow = m_numRows > 0 ? GetRowBottom(m_numRows - 1) : 0;
5138
5139   if ( right > rightCol || bottom > bottomRow )
5140   {
5141       int left, top;
5142       CalcUnscrolledPosition( 0, 0, &left, &top );
5143
5144       dc.SetBrush(GetDefaultCellBackgroundColour());
5145       dc.SetPen( *wxTRANSPARENT_PEN );
5146
5147       if ( right > rightCol )
5148       {
5149           dc.DrawRectangle( rightCol, top, right - rightCol, ch );
5150       }
5151
5152       if ( bottom > bottomRow )
5153       {
5154           dc.DrawRectangle( left, bottomRow, cw, bottom - bottomRow );
5155       }
5156   }
5157 }
5158
5159 void wxGrid::DrawCell( wxDC& dc, const wxGridCellCoords& coords )
5160 {
5161     int row = coords.GetRow();
5162     int col = coords.GetCol();
5163
5164     if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
5165         return;
5166
5167     // we draw the cell border ourselves
5168     wxGridCellAttr* attr = GetCellAttr(row, col);
5169
5170     bool isCurrent = coords == m_currentCellCoords;
5171
5172     wxRect rect = CellToRect( row, col );
5173
5174     // if the editor is shown, we should use it and not the renderer
5175     // Note: However, only if it is really _shown_, i.e. not hidden!
5176     if ( isCurrent && IsCellEditControlShown() )
5177     {
5178         // NB: this "#if..." is temporary and fixes a problem where the
5179         // edit control is erased by this code after being rendered.
5180         // On wxMac (QD build only), the cell editor is a wxTextCntl and is rendered
5181         // implicitly, causing this out-of order render.
5182 #if !defined(__WXMAC__)
5183         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
5184         editor->PaintBackground(rect, attr);
5185         editor->DecRef();
5186 #endif
5187     }
5188     else
5189     {
5190         // but all the rest is drawn by the cell renderer and hence may be customized
5191         wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
5192         renderer->Draw(*this, *attr, dc, rect, row, col, IsInSelection(coords));
5193         renderer->DecRef();
5194     }
5195
5196     attr->DecRef();
5197 }
5198
5199 void wxGrid::DrawCellHighlight( wxDC& dc, const wxGridCellAttr *attr )
5200 {
5201     // don't show highlight when the grid doesn't have focus
5202     if ( !HasFocus() )
5203         return;
5204
5205     int row = m_currentCellCoords.GetRow();
5206     int col = m_currentCellCoords.GetCol();
5207
5208     if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
5209         return;
5210
5211     wxRect rect = CellToRect(row, col);
5212
5213     // hmmm... what could we do here to show that the cell is disabled?
5214     // for now, I just draw a thinner border than for the other ones, but
5215     // it doesn't look really good
5216
5217     int penWidth = attr->IsReadOnly() ? m_cellHighlightROPenWidth : m_cellHighlightPenWidth;
5218
5219     if (penWidth > 0)
5220     {
5221         // The center of the drawn line is where the position/width/height of
5222         // the rectangle is actually at (on wxMSW at least), so the
5223         // size of the rectangle is reduced to compensate for the thickness of
5224         // the line. If this is too strange on non-wxMSW platforms then
5225         // please #ifdef this appropriately.
5226         rect.x += penWidth / 2;
5227         rect.y += penWidth / 2;
5228         rect.width -= penWidth - 1;
5229         rect.height -= penWidth - 1;
5230
5231         // Now draw the rectangle
5232         // use the cellHighlightColour if the cell is inside a selection, this
5233         // will ensure the cell is always visible.
5234         dc.SetPen(wxPen(IsInSelection(row,col) ? m_selectionForeground
5235                                                : m_cellHighlightColour,
5236                         penWidth));
5237         dc.SetBrush(*wxTRANSPARENT_BRUSH);
5238         dc.DrawRectangle(rect);
5239     }
5240 }
5241
5242 wxPen wxGrid::GetDefaultGridLinePen()
5243 {
5244     return wxPen(GetGridLineColour());
5245 }
5246
5247 wxPen wxGrid::GetRowGridLinePen(int WXUNUSED(row))
5248 {
5249     return GetDefaultGridLinePen();
5250 }
5251
5252 wxPen wxGrid::GetColGridLinePen(int WXUNUSED(col))
5253 {
5254     return GetDefaultGridLinePen();
5255 }
5256
5257 void wxGrid::DrawCellBorder( wxDC& dc, const wxGridCellCoords& coords )
5258 {
5259     int row = coords.GetRow();
5260     int col = coords.GetCol();
5261     if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
5262         return;
5263
5264
5265     wxRect rect = CellToRect( row, col );
5266
5267     // right hand border
5268     dc.SetPen( GetColGridLinePen(col) );
5269     dc.DrawLine( rect.x + rect.width, rect.y,
5270                  rect.x + rect.width, rect.y + rect.height + 1 );
5271
5272     // bottom border
5273     dc.SetPen( GetRowGridLinePen(row) );
5274     dc.DrawLine( rect.x, rect.y + rect.height,
5275                  rect.x + rect.width, rect.y + rect.height);
5276 }
5277
5278 void wxGrid::DrawHighlight(wxDC& dc, const wxGridCellCoordsArray& cells)
5279 {
5280     // This if block was previously in wxGrid::OnPaint but that doesn't
5281     // seem to get called under wxGTK - MB
5282     //
5283     if ( m_currentCellCoords == wxGridNoCellCoords &&
5284          m_numRows && m_numCols )
5285     {
5286         m_currentCellCoords.Set(0, 0);
5287     }
5288
5289     if ( IsCellEditControlShown() )
5290     {
5291         // don't show highlight when the edit control is shown
5292         return;
5293     }
5294
5295     // if the active cell was repainted, repaint its highlight too because it
5296     // might have been damaged by the grid lines
5297     size_t count = cells.GetCount();
5298     for ( size_t n = 0; n < count; n++ )
5299     {
5300         wxGridCellCoords cell = cells[n];
5301
5302         // If we are using attributes, then we may have just exposed another
5303         // cell in a partially-visible merged cluster of cells. If the "anchor"
5304         // (upper left) cell of this merged cluster is the cell indicated by
5305         // m_currentCellCoords, then we need to refresh the cell highlight even
5306         // though the "anchor" itself is not part of our update segment.
5307         if ( CanHaveAttributes() )
5308         {
5309             int rows = 0,
5310                 cols = 0;
5311             GetCellSize(cell.GetRow(), cell.GetCol(), &rows, &cols);
5312
5313             if ( rows < 0 )
5314                 cell.SetRow(cell.GetRow() + rows);
5315
5316             if ( cols < 0 )
5317                 cell.SetCol(cell.GetCol() + cols);
5318         }
5319
5320         if ( cell == m_currentCellCoords )
5321         {
5322             wxGridCellAttr* attr = GetCellAttr(m_currentCellCoords);
5323             DrawCellHighlight(dc, attr);
5324             attr->DecRef();
5325
5326             break;
5327         }
5328     }
5329 }
5330
5331 // This is used to redraw all grid lines e.g. when the grid line colour
5332 // has been changed
5333 //
5334 void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
5335 {
5336     if ( !m_gridLinesEnabled )
5337          return;
5338
5339     int top, bottom, left, right;
5340
5341     int cw, ch;
5342     m_gridWin->GetClientSize(&cw, &ch);
5343     CalcUnscrolledPosition( 0, 0, &left, &top );
5344     CalcUnscrolledPosition( cw, ch, &right, &bottom );
5345
5346     // avoid drawing grid lines past the last row and col
5347     if ( m_gridLinesClipHorz )
5348     {
5349         if ( !m_numCols )
5350             return;
5351
5352         const int lastColRight = GetColRight(GetColAt(m_numCols - 1));
5353         if ( right > lastColRight )
5354             right = lastColRight;
5355     }
5356
5357     if ( m_gridLinesClipVert )
5358     {
5359         if ( !m_numRows )
5360             return;
5361
5362         const int lastRowBottom = GetRowBottom(m_numRows - 1);
5363         if ( bottom > lastRowBottom )
5364             bottom = lastRowBottom;
5365     }
5366
5367     // no gridlines inside multicells, clip them out
5368     int leftCol = GetColPos( internalXToCol(left) );
5369     int topRow = internalYToRow(top);
5370     int rightCol = GetColPos( internalXToCol(right) );
5371     int bottomRow = internalYToRow(bottom);
5372
5373     wxRegion clippedcells(0, 0, cw, ch);
5374
5375     int cell_rows, cell_cols;
5376     wxRect rect;
5377
5378     for ( int j = topRow; j <= bottomRow; j++ )
5379     {
5380         for ( int colPos = leftCol; colPos <= rightCol; colPos++ )
5381         {
5382             int i = GetColAt( colPos );
5383
5384             GetCellSize( j, i, &cell_rows, &cell_cols );
5385             if ((cell_rows > 1) || (cell_cols > 1))
5386             {
5387                 rect = CellToRect(j,i);
5388                 CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
5389                 clippedcells.Subtract(rect);
5390             }
5391             else if ((cell_rows < 0) || (cell_cols < 0))
5392             {
5393                 rect = CellToRect(j + cell_rows, i + cell_cols);
5394                 CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
5395                 clippedcells.Subtract(rect);
5396             }
5397         }
5398     }
5399
5400     dc.SetDeviceClippingRegion( clippedcells );
5401
5402
5403     // horizontal grid lines
5404     for ( int i = internalYToRow(top); i < m_numRows; i++ )
5405     {
5406         int bot = GetRowBottom(i) - 1;
5407
5408         if ( bot > bottom )
5409             break;
5410
5411         if ( bot >= top )
5412         {
5413             dc.SetPen( GetRowGridLinePen(i) );
5414             dc.DrawLine( left, bot, right, bot );
5415         }
5416     }
5417
5418     // vertical grid lines
5419     for ( int colPos = leftCol; colPos < m_numCols; colPos++ )
5420     {
5421         int i = GetColAt( colPos );
5422
5423         int colRight = GetColRight(i);
5424 #ifdef __WXGTK__
5425         if (GetLayoutDirection() != wxLayout_RightToLeft)
5426 #endif
5427             colRight--;
5428
5429         if ( colRight > right )
5430             break;
5431
5432         if ( colRight >= left )
5433         {
5434             dc.SetPen( GetColGridLinePen(i) );
5435             dc.DrawLine( colRight, top, colRight, bottom );
5436         }
5437     }
5438
5439     dc.DestroyClippingRegion();
5440 }
5441
5442 void wxGrid::DrawRowLabels( wxDC& dc, const wxArrayInt& rows)
5443 {
5444     if ( !m_numRows )
5445         return;
5446
5447     const size_t numLabels = rows.GetCount();
5448     for ( size_t i = 0; i < numLabels; i++ )
5449     {
5450         DrawRowLabel( dc, rows[i] );
5451     }
5452 }
5453
5454 void wxGrid::DrawRowLabel( wxDC& dc, int row )
5455 {
5456     if ( GetRowHeight(row) <= 0 || m_rowLabelWidth <= 0 )
5457         return;
5458
5459     wxGridCellAttrProvider * const
5460         attrProvider = m_table ? m_table->GetAttrProvider() : NULL;
5461
5462     // notice that an explicit static_cast is needed to avoid a compilation
5463     // error with VC7.1 which, for some reason, tries to instantiate (abstract)
5464     // wxGridRowHeaderRenderer class without it
5465     const wxGridRowHeaderRenderer&
5466         rend = attrProvider ? attrProvider->GetRowHeaderRenderer(row)
5467                             : static_cast<const wxGridRowHeaderRenderer&>
5468                                 (gs_defaultHeaderRenderers.rowRenderer);
5469
5470     wxRect rect(0, GetRowTop(row), m_rowLabelWidth, GetRowHeight(row));
5471     rend.DrawBorder(*this, dc, rect);
5472
5473     int hAlign, vAlign;
5474     GetRowLabelAlignment(&hAlign, &vAlign);
5475
5476     rend.DrawLabel(*this, dc, GetRowLabelValue(row),
5477                    rect, hAlign, vAlign, wxHORIZONTAL);
5478 }
5479
5480 void wxGrid::UseNativeColHeader(bool native)
5481 {
5482     if ( native == m_useNativeHeader )
5483         return;
5484
5485     delete m_colWindow;
5486     m_useNativeHeader = native;
5487
5488     CreateColumnWindow();
5489
5490     if ( m_useNativeHeader )
5491         GetGridColHeader()->SetColumnCount(m_numCols);
5492     CalcWindowSizes();
5493 }
5494
5495 void wxGrid::SetUseNativeColLabels( bool native )
5496 {
5497     wxASSERT_MSG( !m_useNativeHeader,
5498                   "doesn't make sense when using native header" );
5499
5500     m_nativeColumnLabels = native;
5501     if (native)
5502     {
5503         int height = wxRendererNative::Get().GetHeaderButtonHeight( this );
5504         SetColLabelSize( height );
5505     }
5506
5507     GetColLabelWindow()->Refresh();
5508     m_cornerLabelWin->Refresh();
5509 }
5510
5511 void wxGrid::DrawColLabels( wxDC& dc,const wxArrayInt& cols )
5512 {
5513     if ( !m_numCols )
5514         return;
5515
5516     const size_t numLabels = cols.GetCount();
5517     for ( size_t i = 0; i < numLabels; i++ )
5518     {
5519         DrawColLabel( dc, cols[i] );
5520     }
5521 }
5522
5523 void wxGrid::DrawCornerLabel(wxDC& dc)
5524 {
5525     wxRect rect(wxSize(m_rowLabelWidth, m_colLabelHeight));
5526
5527     if ( m_nativeColumnLabels )
5528     {
5529         rect.Deflate(1);
5530
5531         wxRendererNative::Get().DrawHeaderButton(m_cornerLabelWin, dc, rect, 0);
5532     }
5533     else
5534     {
5535         rect.width++;
5536         rect.height++;
5537
5538         wxGridCellAttrProvider * const
5539             attrProvider = m_table ? m_table->GetAttrProvider() : NULL;
5540         const wxGridCornerHeaderRenderer&
5541             rend = attrProvider ? attrProvider->GetCornerRenderer()
5542                                 : static_cast<wxGridCornerHeaderRenderer&>
5543                                     (gs_defaultHeaderRenderers.cornerRenderer);
5544
5545         rend.DrawBorder(*this, dc, rect);
5546     }
5547 }
5548
5549 void wxGrid::DrawColLabel(wxDC& dc, int col)
5550 {
5551     if ( GetColWidth(col) <= 0 || m_colLabelHeight <= 0 )
5552         return;
5553
5554     int colLeft = GetColLeft(col);
5555
5556     wxRect rect(colLeft, 0, GetColWidth(col), m_colLabelHeight);
5557     wxGridCellAttrProvider * const
5558         attrProvider = m_table ? m_table->GetAttrProvider() : NULL;
5559     const wxGridColumnHeaderRenderer&
5560         rend = attrProvider ? attrProvider->GetColumnHeaderRenderer(col)
5561                             : static_cast<wxGridColumnHeaderRenderer&>
5562                                 (gs_defaultHeaderRenderers.colRenderer);
5563
5564     if ( m_nativeColumnLabels )
5565     {
5566         wxRendererNative::Get().DrawHeaderButton
5567                                 (
5568                                     GetColLabelWindow(),
5569                                     dc,
5570                                     rect,
5571                                     0,
5572                                     IsSortingBy(col)
5573                                         ? IsSortOrderAscending()
5574                                             ? wxHDR_SORT_ICON_UP
5575                                             : wxHDR_SORT_ICON_DOWN
5576                                         : wxHDR_SORT_ICON_NONE
5577                                 );
5578         rect.Deflate(2);
5579     }
5580     else
5581     {
5582         // It is reported that we need to erase the background to avoid display
5583         // artefacts, see #12055.
5584         wxDCBrushChanger setBrush(dc, m_colWindow->GetBackgroundColour());
5585         dc.DrawRectangle(rect);
5586
5587         rend.DrawBorder(*this, dc, rect);
5588     }
5589
5590     int hAlign, vAlign;
5591     GetColLabelAlignment(&hAlign, &vAlign);
5592     const int orient = GetColLabelTextOrientation();
5593
5594     rend.DrawLabel(*this, dc, GetColLabelValue(col), rect, hAlign, vAlign, orient);
5595 }
5596
5597 // TODO: these 2 functions should be replaced with wxDC::DrawLabel() to which
5598 //       we just have to add textOrientation support
5599 void wxGrid::DrawTextRectangle( wxDC& dc,
5600                                 const wxString& value,
5601                                 const wxRect& rect,
5602                                 int horizAlign,
5603                                 int vertAlign,
5604                                 int textOrientation ) const
5605 {
5606     wxArrayString lines;
5607
5608     StringToLines( value, lines );
5609
5610     DrawTextRectangle(dc, lines, rect, horizAlign, vertAlign, textOrientation);
5611 }
5612
5613 void wxGrid::DrawTextRectangle(wxDC& dc,
5614                                const wxArrayString& lines,
5615                                const wxRect& rect,
5616                                int horizAlign,
5617                                int vertAlign,
5618                                int textOrientation) const
5619 {
5620     if ( lines.empty() )
5621         return;
5622
5623     wxDCClipper clip(dc, rect);
5624
5625     long textWidth,
5626          textHeight;
5627
5628     if ( textOrientation == wxHORIZONTAL )
5629         GetTextBoxSize( dc, lines, &textWidth, &textHeight );
5630     else
5631         GetTextBoxSize( dc, lines, &textHeight, &textWidth );
5632
5633     int x = 0,
5634         y = 0;
5635     switch ( vertAlign )
5636     {
5637         case wxALIGN_BOTTOM:
5638             if ( textOrientation == wxHORIZONTAL )
5639                 y = rect.y + (rect.height - textHeight - 1);
5640             else
5641                 x = rect.x + rect.width - textWidth;
5642             break;
5643
5644         case wxALIGN_CENTRE:
5645             if ( textOrientation == wxHORIZONTAL )
5646                 y = rect.y + ((rect.height - textHeight) / 2);
5647             else
5648                 x = rect.x + ((rect.width - textWidth) / 2);
5649             break;
5650
5651         case wxALIGN_TOP:
5652         default:
5653             if ( textOrientation == wxHORIZONTAL )
5654                 y = rect.y + 1;
5655             else
5656                 x = rect.x + 1;
5657             break;
5658     }
5659
5660     // Align each line of a multi-line label
5661     size_t nLines = lines.GetCount();
5662     for ( size_t l = 0; l < nLines; l++ )
5663     {
5664         const wxString& line = lines[l];
5665
5666         if ( line.empty() )
5667         {
5668             *(textOrientation == wxHORIZONTAL ? &y : &x) += dc.GetCharHeight();
5669             continue;
5670         }
5671
5672         wxCoord lineWidth = 0,
5673              lineHeight = 0;
5674         dc.GetTextExtent(line, &lineWidth, &lineHeight);
5675
5676         switch ( horizAlign )
5677         {
5678             case wxALIGN_RIGHT:
5679                 if ( textOrientation == wxHORIZONTAL )
5680                     x = rect.x + (rect.width - lineWidth - 1);
5681                 else
5682                     y = rect.y + lineWidth + 1;
5683                 break;
5684
5685             case wxALIGN_CENTRE:
5686                 if ( textOrientation == wxHORIZONTAL )
5687                     x = rect.x + ((rect.width - lineWidth) / 2);
5688                 else
5689                     y = rect.y + rect.height - ((rect.height - lineWidth) / 2);
5690                 break;
5691
5692             case wxALIGN_LEFT:
5693             default:
5694                 if ( textOrientation == wxHORIZONTAL )
5695                     x = rect.x + 1;
5696                 else
5697                     y = rect.y + rect.height - 1;
5698                 break;
5699         }
5700
5701         if ( textOrientation == wxHORIZONTAL )
5702         {
5703             dc.DrawText( line, x, y );
5704             y += lineHeight;
5705         }
5706         else
5707         {
5708             dc.DrawRotatedText( line, x, y, 90.0 );
5709             x += lineHeight;
5710         }
5711     }
5712 }
5713
5714 // Split multi-line text up into an array of strings.
5715 // Any existing contents of the string array are preserved.
5716 //
5717 // TODO: refactor wxTextFile::Read() and reuse the same code from here
5718 void wxGrid::StringToLines( const wxString& value, wxArrayString& lines ) const
5719 {
5720     int startPos = 0;
5721     int pos;
5722     wxString eol = wxTextFile::GetEOL( wxTextFileType_Unix );
5723     wxString tVal = wxTextFile::Translate( value, wxTextFileType_Unix );
5724
5725     while ( startPos < (int)tVal.length() )
5726     {
5727         pos = tVal.Mid(startPos).Find( eol );
5728         if ( pos < 0 )
5729         {
5730             break;
5731         }
5732         else if ( pos == 0 )
5733         {
5734             lines.Add( wxEmptyString );
5735         }
5736         else
5737         {
5738             lines.Add( tVal.Mid(startPos, pos) );
5739         }
5740
5741         startPos += pos + 1;
5742     }
5743
5744     if ( startPos < (int)tVal.length() )
5745     {
5746         lines.Add( tVal.Mid( startPos ) );
5747     }
5748 }
5749
5750 void wxGrid::GetTextBoxSize( const wxDC& dc,
5751                              const wxArrayString& lines,
5752                              long *width, long *height ) const
5753 {
5754     wxCoord w = 0;
5755     wxCoord h = 0;
5756     wxCoord lineW = 0, lineH = 0;
5757
5758     size_t i;
5759     for ( i = 0; i < lines.GetCount(); i++ )
5760     {
5761         dc.GetTextExtent( lines[i], &lineW, &lineH );
5762         w = wxMax( w, lineW );
5763         h += lineH;
5764     }
5765
5766     *width = w;
5767     *height = h;
5768 }
5769
5770 //
5771 // ------ Batch processing.
5772 //
5773 void wxGrid::EndBatch()
5774 {
5775     if ( m_batchCount > 0 )
5776     {
5777         m_batchCount--;
5778         if ( !m_batchCount )
5779         {
5780             CalcDimensions();
5781             m_rowLabelWin->Refresh();
5782             m_colWindow->Refresh();
5783             m_cornerLabelWin->Refresh();
5784             m_gridWin->Refresh();
5785         }
5786     }
5787 }
5788
5789 // Use this, rather than wxWindow::Refresh(), to force an immediate
5790 // repainting of the grid. Has no effect if you are already inside a
5791 // BeginBatch / EndBatch block.
5792 //
5793 void wxGrid::ForceRefresh()
5794 {
5795     BeginBatch();
5796     EndBatch();
5797 }
5798
5799 bool wxGrid::Enable(bool enable)
5800 {
5801     if ( !wxScrolledWindow::Enable(enable) )
5802         return false;
5803
5804     // redraw in the new state
5805     m_gridWin->Refresh();
5806
5807     return true;
5808 }
5809
5810 //
5811 // ------ Edit control functions
5812 //
5813
5814 void wxGrid::EnableEditing( bool edit )
5815 {
5816     if ( edit != m_editable )
5817     {
5818         if (!edit)
5819             EnableCellEditControl(edit);
5820         m_editable = edit;
5821     }
5822 }
5823
5824 void wxGrid::EnableCellEditControl( bool enable )
5825 {
5826     if (! m_editable)
5827         return;
5828
5829     if ( enable != m_cellEditCtrlEnabled )
5830     {
5831         if ( enable )
5832         {
5833             if ( SendEvent(wxEVT_GRID_EDITOR_SHOWN) == -1 )
5834                 return;
5835
5836             // this should be checked by the caller!
5837             wxASSERT_MSG( CanEnableCellControl(), wxT("can't enable editing for this cell!") );
5838
5839             // do it before ShowCellEditControl()
5840             m_cellEditCtrlEnabled = enable;
5841
5842             ShowCellEditControl();
5843         }
5844         else
5845         {
5846             SendEvent(wxEVT_GRID_EDITOR_HIDDEN);
5847
5848             HideCellEditControl();
5849             SaveEditControlValue();
5850
5851             // do it after HideCellEditControl()
5852             m_cellEditCtrlEnabled = enable;
5853         }
5854     }
5855 }
5856
5857 bool wxGrid::IsCurrentCellReadOnly() const
5858 {
5859     wxGridCellAttr*
5860         attr = const_cast<wxGrid *>(this)->GetCellAttr(m_currentCellCoords);
5861     bool readonly = attr->IsReadOnly();
5862     attr->DecRef();
5863
5864     return readonly;
5865 }
5866
5867 bool wxGrid::CanEnableCellControl() const
5868 {
5869     return m_editable && (m_currentCellCoords != wxGridNoCellCoords) &&
5870         !IsCurrentCellReadOnly();
5871 }
5872
5873 bool wxGrid::IsCellEditControlEnabled() const
5874 {
5875     // the cell edit control might be disable for all cells or just for the
5876     // current one if it's read only
5877     return m_cellEditCtrlEnabled ? !IsCurrentCellReadOnly() : false;
5878 }
5879
5880 bool wxGrid::IsCellEditControlShown() const
5881 {
5882     bool isShown = false;
5883
5884     if ( m_cellEditCtrlEnabled )
5885     {
5886         int row = m_currentCellCoords.GetRow();
5887         int col = m_currentCellCoords.GetCol();
5888         wxGridCellAttr* attr = GetCellAttr(row, col);
5889         wxGridCellEditor* editor = attr->GetEditor((wxGrid*) this, row, col);
5890         attr->DecRef();
5891
5892         if ( editor )
5893         {
5894             if ( editor->IsCreated() )
5895             {
5896                 isShown = editor->GetControl()->IsShown();
5897             }
5898
5899             editor->DecRef();
5900         }
5901     }
5902
5903     return isShown;
5904 }
5905
5906 void wxGrid::ShowCellEditControl()
5907 {
5908     if ( IsCellEditControlEnabled() )
5909     {
5910         if ( !IsVisible( m_currentCellCoords, false ) )
5911         {
5912             m_cellEditCtrlEnabled = false;
5913             return;
5914         }
5915         else
5916         {
5917             wxRect rect = CellToRect( m_currentCellCoords );
5918             int row = m_currentCellCoords.GetRow();
5919             int col = m_currentCellCoords.GetCol();
5920
5921             // if this is part of a multicell, find owner (topleft)
5922             int cell_rows, cell_cols;
5923             GetCellSize( row, col, &cell_rows, &cell_cols );
5924             if ( cell_rows <= 0 || cell_cols <= 0 )
5925             {
5926                 row += cell_rows;
5927                 col += cell_cols;
5928                 m_currentCellCoords.SetRow( row );
5929                 m_currentCellCoords.SetCol( col );
5930             }
5931
5932             // erase the highlight and the cell contents because the editor
5933             // might not cover the entire cell
5934             wxClientDC dc( m_gridWin );
5935             PrepareDC( dc );
5936             wxGridCellAttr* attr = GetCellAttr(row, col);
5937             dc.SetBrush(wxBrush(attr->GetBackgroundColour()));
5938             dc.SetPen(*wxTRANSPARENT_PEN);
5939             dc.DrawRectangle(rect);
5940
5941             // convert to scrolled coords
5942             CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
5943
5944             int nXMove = 0;
5945             if (rect.x < 0)
5946                 nXMove = rect.x;
5947
5948             // cell is shifted by one pixel
5949             // However, don't allow x or y to become negative
5950             // since the SetSize() method interprets that as
5951             // "don't change."
5952             if (rect.x > 0)
5953                 rect.x--;
5954             if (rect.y > 0)
5955                 rect.y--;
5956
5957             wxGridCellEditor* editor = attr->GetEditor(this, row, col);
5958             if ( !editor->IsCreated() )
5959             {
5960                 editor->Create(m_gridWin, wxID_ANY,
5961                                new wxGridCellEditorEvtHandler(this, editor));
5962
5963                 wxGridEditorCreatedEvent evt(GetId(),
5964                                              wxEVT_GRID_EDITOR_CREATED,
5965                                              this,
5966                                              row,
5967                                              col,
5968                                              editor->GetControl());
5969                 GetEventHandler()->ProcessEvent(evt);
5970             }
5971
5972             // resize editor to overflow into righthand cells if allowed
5973             int maxWidth = rect.width;
5974             wxString value = GetCellValue(row, col);
5975             if ( (value != wxEmptyString) && (attr->GetOverflow()) )
5976             {
5977                 int y;
5978                 GetTextExtent(value, &maxWidth, &y, NULL, NULL, &attr->GetFont());
5979                 if (maxWidth < rect.width)
5980                     maxWidth = rect.width;
5981             }
5982
5983             int client_right = m_gridWin->GetClientSize().GetWidth();
5984             if (rect.x + maxWidth > client_right)
5985                 maxWidth = client_right - rect.x;
5986
5987             if ((maxWidth > rect.width) && (col < m_numCols) && m_table)
5988             {
5989                 GetCellSize( row, col, &cell_rows, &cell_cols );
5990                 // may have changed earlier
5991                 for (int i = col + cell_cols; i < m_numCols; i++)
5992                 {
5993                     int c_rows, c_cols;
5994                     GetCellSize( row, i, &c_rows, &c_cols );
5995
5996                     // looks weird going over a multicell
5997                     if (m_table->IsEmptyCell( row, i ) &&
5998                             (rect.width < maxWidth) && (c_rows == 1))
5999                     {
6000                         rect.width += GetColWidth( i );
6001                     }
6002                     else
6003                         break;
6004                 }
6005
6006                 if (rect.GetRight() > client_right)
6007                     rect.SetRight( client_right - 1 );
6008             }
6009
6010             editor->SetCellAttr( attr );
6011             editor->SetSize( rect );
6012             if (nXMove != 0)
6013                 editor->GetControl()->Move(
6014                     editor->GetControl()->GetPosition().x + nXMove,
6015                     editor->GetControl()->GetPosition().y );
6016             editor->Show( true, attr );
6017
6018             // recalc dimensions in case we need to
6019             // expand the scrolled window to account for editor
6020             CalcDimensions();
6021
6022             editor->BeginEdit(row, col, this);
6023             editor->SetCellAttr(NULL);
6024
6025             editor->DecRef();
6026             attr->DecRef();
6027         }
6028     }
6029 }
6030
6031 void wxGrid::HideCellEditControl()
6032 {
6033     if ( IsCellEditControlEnabled() )
6034     {
6035         int row = m_currentCellCoords.GetRow();
6036         int col = m_currentCellCoords.GetCol();
6037
6038         wxGridCellAttr *attr = GetCellAttr(row, col);
6039         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
6040         const bool editorHadFocus = editor->GetControl()->HasFocus();
6041         editor->Show( false );
6042         editor->DecRef();
6043         attr->DecRef();
6044
6045         // return the focus to the grid itself if the editor had it
6046         //
6047         // note that we must not do this unconditionally to avoid stealing
6048         // focus from the window which just received it if we are hiding the
6049         // editor precisely because we lost focus
6050         if ( editorHadFocus )
6051             m_gridWin->SetFocus();
6052
6053         // refresh whole row to the right
6054         wxRect rect( CellToRect(row, col) );
6055         CalcScrolledPosition(rect.x, rect.y, &rect.x, &rect.y );
6056         rect.width = m_gridWin->GetClientSize().GetWidth() - rect.x;
6057
6058 #ifdef __WXMAC__
6059         // ensure that the pixels under the focus ring get refreshed as well
6060         rect.Inflate(10, 10);
6061 #endif
6062
6063         m_gridWin->Refresh( false, &rect );
6064     }
6065 }
6066
6067 void wxGrid::SaveEditControlValue()
6068 {
6069     if ( IsCellEditControlEnabled() )
6070     {
6071         int row = m_currentCellCoords.GetRow();
6072         int col = m_currentCellCoords.GetCol();
6073
6074         wxString oldval = GetCellValue(row, col);
6075
6076         wxGridCellAttr* attr = GetCellAttr(row, col);
6077         wxGridCellEditor* editor = attr->GetEditor(this, row, col);
6078
6079         wxString newval;
6080         bool changed = editor->EndEdit(row, col, this, oldval, &newval);
6081
6082         if ( changed && SendEvent(wxEVT_GRID_CELL_CHANGING, newval) != -1 )
6083         {
6084             editor->ApplyEdit(row, col, this);
6085
6086             // for compatibility reasons dating back to wx 2.8 when this event
6087             // was called wxEVT_GRID_CELL_CHANGE and wxEVT_GRID_CELL_CHANGING
6088             // didn't exist we allow vetoing this one too
6089             if ( SendEvent(wxEVT_GRID_CELL_CHANGED, oldval) == -1 )
6090             {
6091                 // Event has been vetoed, set the data back.
6092                 SetCellValue(row, col, oldval);
6093             }
6094         }
6095
6096         editor->DecRef();
6097         attr->DecRef();
6098     }
6099 }
6100
6101 //
6102 // ------ Grid location functions
6103 //  Note that all of these functions work with the logical coordinates of
6104 //  grid cells and labels so you will need to convert from device
6105 //  coordinates for mouse events etc.
6106 //
6107
6108 wxGridCellCoords wxGrid::XYToCell(int x, int y) const
6109 {
6110     int row = YToRow(y);
6111     int col = XToCol(x);
6112
6113     return row == -1 || col == -1 ? wxGridNoCellCoords
6114                                   : wxGridCellCoords(row, col);
6115 }
6116
6117 // compute row or column from some (unscrolled) coordinate value, using either
6118 // m_defaultRowHeight/m_defaultColWidth or binary search on array of
6119 // m_rowBottoms/m_colRights to do it quickly (linear search shouldn't be used
6120 // for large grids)
6121 int wxGrid::PosToLinePos(int coord,
6122                          bool clipToMinMax,
6123                          const wxGridOperations& oper) const
6124 {
6125     const int numLines = oper.GetNumberOfLines(this);
6126
6127     if ( coord < 0 )
6128         return clipToMinMax && numLines > 0 ? 0 : wxNOT_FOUND;
6129
6130     const int defaultLineSize = oper.GetDefaultLineSize(this);
6131     wxCHECK_MSG( defaultLineSize, -1, "can't have 0 default line size" );
6132
6133     int maxPos = coord / defaultLineSize,
6134         minPos = 0;
6135
6136     // check for the simplest case: if we have no explicit line sizes
6137     // configured, then we already know the line this position falls in
6138     const wxArrayInt& lineEnds = oper.GetLineEnds(this);
6139     if ( lineEnds.empty() )
6140     {
6141         if ( maxPos < numLines )
6142             return maxPos;
6143
6144         return clipToMinMax ? numLines - 1 : -1;
6145     }
6146
6147
6148     // adjust maxPos before starting the binary search
6149     if ( maxPos >= numLines )
6150     {
6151         maxPos = numLines  - 1;
6152     }
6153     else
6154     {
6155         if ( coord >= lineEnds[oper.GetLineAt(this, maxPos)])
6156         {
6157             minPos = maxPos;
6158             const int minDist = oper.GetMinimalAcceptableLineSize(this);
6159             if ( minDist )
6160                 maxPos = coord / minDist;
6161             else
6162                 maxPos = numLines - 1;
6163         }
6164
6165         if ( maxPos >= numLines )
6166             maxPos = numLines  - 1;
6167     }
6168
6169     // check if the position is beyond the last column
6170     const int lineAtMaxPos = oper.GetLineAt(this, maxPos);
6171     if ( coord >= lineEnds[lineAtMaxPos] )
6172         return clipToMinMax ? maxPos : -1;
6173
6174     // or before the first one
6175     const int lineAt0 = oper.GetLineAt(this, 0);
6176     if ( coord < lineEnds[lineAt0] )
6177         return 0;
6178
6179
6180     // finally do perform the binary search
6181     while ( minPos < maxPos )
6182     {
6183         wxCHECK_MSG( lineEnds[oper.GetLineAt(this, minPos)] <= coord &&
6184                         coord < lineEnds[oper.GetLineAt(this, maxPos)],
6185                      -1,
6186                      "wxGrid: internal error in PosToLinePos()" );
6187
6188         if ( coord >= lineEnds[oper.GetLineAt(this, maxPos - 1)] )
6189             return maxPos;
6190         else
6191             maxPos--;
6192
6193         const int median = minPos + (maxPos - minPos + 1) / 2;
6194         if ( coord < lineEnds[oper.GetLineAt(this, median)] )
6195             maxPos = median;
6196         else
6197             minPos = median;
6198     }
6199
6200     return maxPos;
6201 }
6202
6203 int
6204 wxGrid::PosToLine(int coord,
6205                   bool clipToMinMax,
6206                   const wxGridOperations& oper) const
6207 {
6208     int pos = PosToLinePos(coord, clipToMinMax, oper);
6209
6210     return pos == wxNOT_FOUND ? wxNOT_FOUND : oper.GetLineAt(this, pos);
6211 }
6212
6213 int wxGrid::YToRow(int y, bool clipToMinMax) const
6214 {
6215     return PosToLine(y, clipToMinMax, wxGridRowOperations());
6216 }
6217
6218 int wxGrid::XToCol(int x, bool clipToMinMax) const
6219 {
6220     return PosToLine(x, clipToMinMax, wxGridColumnOperations());
6221 }
6222
6223 int wxGrid::XToPos(int x) const
6224 {
6225     return PosToLinePos(x, true /* clip */, wxGridColumnOperations());
6226 }
6227
6228 // return the row number such that the y coord is near the edge of, or -1 if
6229 // not near an edge.
6230 //
6231 // notice that position can only possibly be near an edge if the row/column is
6232 // large enough to still allow for an "inner" area that is _not_ near the edge
6233 // (i.e., if the height/width is smaller than WXGRID_LABEL_EDGE_ZONE, pos will
6234 // _never_ be considered to be near the edge).
6235 int wxGrid::PosToEdgeOfLine(int pos, const wxGridOperations& oper) const
6236 {
6237     const int line = oper.PosToLine(this, pos, true);
6238
6239     if ( oper.GetLineSize(this, line) > WXGRID_LABEL_EDGE_ZONE )
6240     {
6241         // We know that we are in this line, test whether we are close enough
6242         // to start or end border, respectively.
6243         if ( abs(oper.GetLineEndPos(this, line) - pos) < WXGRID_LABEL_EDGE_ZONE )
6244             return line;
6245         else if ( line > 0 &&
6246                     pos - oper.GetLineStartPos(this,
6247                                                line) < WXGRID_LABEL_EDGE_ZONE )
6248         {
6249             return oper.GetLineBefore(this, line);
6250         }
6251     }
6252
6253     return -1;
6254 }
6255
6256 int wxGrid::YToEdgeOfRow(int y) const
6257 {
6258     return PosToEdgeOfLine(y, wxGridRowOperations());
6259 }
6260
6261 int wxGrid::XToEdgeOfCol(int x) const
6262 {
6263     return PosToEdgeOfLine(x, wxGridColumnOperations());
6264 }
6265
6266 wxRect wxGrid::CellToRect( int row, int col ) const
6267 {
6268     wxRect rect( -1, -1, -1, -1 );
6269
6270     if ( row >= 0 && row < m_numRows &&
6271          col >= 0 && col < m_numCols )
6272     {
6273         int i, cell_rows, cell_cols;
6274         rect.width = rect.height = 0;
6275         GetCellSize( row, col, &cell_rows, &cell_cols );
6276         // if negative then find multicell owner
6277         if (cell_rows < 0)
6278             row += cell_rows;
6279         if (cell_cols < 0)
6280              col += cell_cols;
6281         GetCellSize( row, col, &cell_rows, &cell_cols );
6282
6283         rect.x = GetColLeft(col);
6284         rect.y = GetRowTop(row);
6285         for (i=col; i < col + cell_cols; i++)
6286             rect.width += GetColWidth(i);
6287         for (i=row; i < row + cell_rows; i++)
6288             rect.height += GetRowHeight(i);
6289
6290         // if grid lines are enabled, then the area of the cell is a bit smaller
6291         if (m_gridLinesEnabled)
6292         {
6293             rect.width -= 1;
6294             rect.height -= 1;
6295         }
6296     }
6297
6298     return rect;
6299 }
6300
6301 bool wxGrid::IsVisible( int row, int col, bool wholeCellVisible ) const
6302 {
6303     // get the cell rectangle in logical coords
6304     //
6305     wxRect r( CellToRect( row, col ) );
6306
6307     // convert to device coords
6308     //
6309     int left, top, right, bottom;
6310     CalcScrolledPosition( r.GetLeft(), r.GetTop(), &left, &top );
6311     CalcScrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
6312
6313     // check against the client area of the grid window
6314     int cw, ch;
6315     m_gridWin->GetClientSize( &cw, &ch );
6316
6317     if ( wholeCellVisible )
6318     {
6319         // is the cell wholly visible ?
6320         return ( left >= 0 && right <= cw &&
6321                  top >= 0 && bottom <= ch );
6322     }
6323     else
6324     {
6325         // is the cell partly visible ?
6326         //
6327         return ( ((left >= 0 && left < cw) || (right > 0 && right <= cw)) &&
6328                  ((top >= 0 && top < ch) || (bottom > 0 && bottom <= ch)) );
6329     }
6330 }
6331
6332 // make the specified cell location visible by doing a minimal amount
6333 // of scrolling
6334 //
6335 void wxGrid::MakeCellVisible( int row, int col )
6336 {
6337     int i;
6338     int xpos = -1, ypos = -1;
6339
6340     if ( row >= 0 && row < m_numRows &&
6341          col >= 0 && col < m_numCols )
6342     {
6343         // get the cell rectangle in logical coords
6344         wxRect r( CellToRect( row, col ) );
6345
6346         // convert to device coords
6347         int left, top, right, bottom;
6348         CalcScrolledPosition( r.GetLeft(), r.GetTop(), &left, &top );
6349         CalcScrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
6350
6351         int cw, ch;
6352         m_gridWin->GetClientSize( &cw, &ch );
6353
6354         if ( top < 0 )
6355         {
6356             ypos = r.GetTop();
6357         }
6358         else if ( bottom > ch )
6359         {
6360             int h = r.GetHeight();
6361             ypos = r.GetTop();
6362             for ( i = row - 1; i >= 0; i-- )
6363             {
6364                 int rowHeight = GetRowHeight(i);
6365                 if ( h + rowHeight > ch )
6366                     break;
6367
6368                 h += rowHeight;
6369                 ypos -= rowHeight;
6370             }
6371
6372             // we divide it later by GRID_SCROLL_LINE, make sure that we don't
6373             // have rounding errors (this is important, because if we do,
6374             // we might not scroll at all and some cells won't be redrawn)
6375             //
6376             // Sometimes GRID_SCROLL_LINE / 2 is not enough,
6377             // so just add a full scroll unit...
6378             ypos += m_yScrollPixelsPerLine;
6379         }
6380
6381         // special handling for wide cells - show always left part of the cell!
6382         // Otherwise, e.g. when stepping from row to row, it would jump between
6383         // left and right part of the cell on every step!
6384 //      if ( left < 0 )
6385         if ( left < 0 || (right - left) >= cw )
6386         {
6387             xpos = r.GetLeft();
6388         }
6389         else if ( right > cw )
6390         {
6391             // position the view so that the cell is on the right
6392             int x0, y0;
6393             CalcUnscrolledPosition(0, 0, &x0, &y0);
6394             xpos = x0 + (right - cw);
6395
6396             // see comment for ypos above
6397             xpos += m_xScrollPixelsPerLine;
6398         }
6399
6400         if ( xpos != -1 || ypos != -1 )
6401         {
6402             if ( xpos != -1 )
6403                 xpos /= m_xScrollPixelsPerLine;
6404             if ( ypos != -1 )
6405                 ypos /= m_yScrollPixelsPerLine;
6406             Scroll( xpos, ypos );
6407             AdjustScrollbars();
6408         }
6409     }
6410 }
6411
6412 //
6413 // ------ Grid cursor movement functions
6414 //
6415
6416 bool
6417 wxGrid::DoMoveCursor(bool expandSelection,
6418                      const wxGridDirectionOperations& diroper)
6419 {
6420     if ( m_currentCellCoords == wxGridNoCellCoords )
6421         return false;
6422
6423     if ( expandSelection )
6424     {
6425         wxGridCellCoords coords = m_selectedBlockCorner;
6426         if ( coords == wxGridNoCellCoords )
6427             coords = m_currentCellCoords;
6428
6429         if ( diroper.IsAtBoundary(coords) )
6430             return false;
6431
6432         diroper.Advance(coords);
6433
6434         UpdateBlockBeingSelected(m_currentCellCoords, coords);
6435     }
6436     else // don't expand selection
6437     {
6438         ClearSelection();
6439
6440         if ( diroper.IsAtBoundary(m_currentCellCoords) )
6441             return false;
6442
6443         wxGridCellCoords coords = m_currentCellCoords;
6444         diroper.Advance(coords);
6445
6446         GoToCell(coords);
6447     }
6448
6449     return true;
6450 }
6451
6452 bool wxGrid::MoveCursorUp(bool expandSelection)
6453 {
6454     return DoMoveCursor(expandSelection,
6455                         wxGridBackwardOperations(this, wxGridRowOperations()));
6456 }
6457
6458 bool wxGrid::MoveCursorDown(bool expandSelection)
6459 {
6460     return DoMoveCursor(expandSelection,
6461                         wxGridForwardOperations(this, wxGridRowOperations()));
6462 }
6463
6464 bool wxGrid::MoveCursorLeft(bool expandSelection)
6465 {
6466     return DoMoveCursor(expandSelection,
6467                         wxGridBackwardOperations(this, wxGridColumnOperations()));
6468 }
6469
6470 bool wxGrid::MoveCursorRight(bool expandSelection)
6471 {
6472     return DoMoveCursor(expandSelection,
6473                         wxGridForwardOperations(this, wxGridColumnOperations()));
6474 }
6475
6476 bool wxGrid::DoMoveCursorByPage(const wxGridDirectionOperations& diroper)
6477 {
6478     if ( m_currentCellCoords == wxGridNoCellCoords )
6479         return false;
6480
6481     if ( diroper.IsAtBoundary(m_currentCellCoords) )
6482         return false;
6483
6484     const int oldRow = m_currentCellCoords.GetRow();
6485     int newRow = diroper.MoveByPixelDistance(oldRow, m_gridWin->GetClientSize().y);
6486     if ( newRow == oldRow )
6487     {
6488         wxGridCellCoords coords(m_currentCellCoords);
6489         diroper.Advance(coords);
6490         newRow = coords.GetRow();
6491     }
6492
6493     GoToCell(newRow, m_currentCellCoords.GetCol());
6494
6495     return true;
6496 }
6497
6498 bool wxGrid::MovePageUp()
6499 {
6500     return DoMoveCursorByPage(
6501                 wxGridBackwardOperations(this, wxGridRowOperations()));
6502 }
6503
6504 bool wxGrid::MovePageDown()
6505 {
6506     return DoMoveCursorByPage(
6507                 wxGridForwardOperations(this, wxGridRowOperations()));
6508 }
6509
6510 // helper of DoMoveCursorByBlock(): advance the cell coordinates using diroper
6511 // until we find a non-empty cell or reach the grid end
6512 void
6513 wxGrid::AdvanceToNextNonEmpty(wxGridCellCoords& coords,
6514                               const wxGridDirectionOperations& diroper)
6515 {
6516     while ( !diroper.IsAtBoundary(coords) )
6517     {
6518         diroper.Advance(coords);
6519         if ( !m_table->IsEmpty(coords) )
6520             break;
6521     }
6522 }
6523
6524 bool
6525 wxGrid::DoMoveCursorByBlock(bool expandSelection,
6526                             const wxGridDirectionOperations& diroper)
6527 {
6528     if ( !m_table || m_currentCellCoords == wxGridNoCellCoords )
6529         return false;
6530
6531     if ( diroper.IsAtBoundary(m_currentCellCoords) )
6532         return false;
6533
6534     wxGridCellCoords coords(m_currentCellCoords);
6535     if ( m_table->IsEmpty(coords) )
6536     {
6537         // we are in an empty cell: find the next block of non-empty cells
6538         AdvanceToNextNonEmpty(coords, diroper);
6539     }
6540     else // current cell is not empty
6541     {
6542         diroper.Advance(coords);
6543         if ( m_table->IsEmpty(coords) )
6544         {
6545             // we started at the end of a block, find the next one
6546             AdvanceToNextNonEmpty(coords, diroper);
6547         }
6548         else // we're in a middle of a block
6549         {
6550             // go to the end of it, i.e. find the last cell before the next
6551             // empty one
6552             while ( !diroper.IsAtBoundary(coords) )
6553             {
6554                 wxGridCellCoords coordsNext(coords);
6555                 diroper.Advance(coordsNext);
6556                 if ( m_table->IsEmpty(coordsNext) )
6557                     break;
6558
6559                 coords = coordsNext;
6560             }
6561         }
6562     }
6563
6564     if ( expandSelection )
6565     {
6566         UpdateBlockBeingSelected(m_currentCellCoords, coords);
6567     }
6568     else
6569     {
6570         ClearSelection();
6571         GoToCell(coords);
6572     }
6573
6574     return true;
6575 }
6576
6577 bool wxGrid::MoveCursorUpBlock(bool expandSelection)
6578 {
6579     return DoMoveCursorByBlock(
6580                 expandSelection,
6581                 wxGridBackwardOperations(this, wxGridRowOperations())
6582            );
6583 }
6584
6585 bool wxGrid::MoveCursorDownBlock( bool expandSelection )
6586 {
6587     return DoMoveCursorByBlock(
6588                 expandSelection,
6589                 wxGridForwardOperations(this, wxGridRowOperations())
6590            );
6591 }
6592
6593 bool wxGrid::MoveCursorLeftBlock( bool expandSelection )
6594 {
6595     return DoMoveCursorByBlock(
6596                 expandSelection,
6597                 wxGridBackwardOperations(this, wxGridColumnOperations())
6598            );
6599 }
6600
6601 bool wxGrid::MoveCursorRightBlock( bool expandSelection )
6602 {
6603     return DoMoveCursorByBlock(
6604                 expandSelection,
6605                 wxGridForwardOperations(this, wxGridColumnOperations())
6606            );
6607 }
6608
6609 //
6610 // ------ Label values and formatting
6611 //
6612
6613 void wxGrid::GetRowLabelAlignment( int *horiz, int *vert ) const
6614 {
6615     if ( horiz )
6616         *horiz = m_rowLabelHorizAlign;
6617     if ( vert )
6618         *vert  = m_rowLabelVertAlign;
6619 }
6620
6621 void wxGrid::GetColLabelAlignment( int *horiz, int *vert ) const
6622 {
6623     if ( horiz )
6624         *horiz = m_colLabelHorizAlign;
6625     if ( vert )
6626         *vert  = m_colLabelVertAlign;
6627 }
6628
6629 int wxGrid::GetColLabelTextOrientation() const
6630 {
6631     return m_colLabelTextOrientation;
6632 }
6633
6634 wxString wxGrid::GetRowLabelValue( int row ) const
6635 {
6636     if ( m_table )
6637     {
6638         return m_table->GetRowLabelValue( row );
6639     }
6640     else
6641     {
6642         wxString s;
6643         s << row;
6644         return s;
6645     }
6646 }
6647
6648 wxString wxGrid::GetColLabelValue( int col ) const
6649 {
6650     if ( m_table )
6651     {
6652         return m_table->GetColLabelValue( col );
6653     }
6654     else
6655     {
6656         wxString s;
6657         s << col;
6658         return s;
6659     }
6660 }
6661
6662 void wxGrid::SetRowLabelSize( int width )
6663 {
6664     wxASSERT( width >= 0 || width == wxGRID_AUTOSIZE );
6665
6666     if ( width == wxGRID_AUTOSIZE )
6667     {
6668         width = CalcColOrRowLabelAreaMinSize(wxGRID_ROW);
6669     }
6670
6671     if ( width != m_rowLabelWidth )
6672     {
6673         if ( width == 0 )
6674         {
6675             m_rowLabelWin->Show( false );
6676             m_cornerLabelWin->Show( false );
6677         }
6678         else if ( m_rowLabelWidth == 0 )
6679         {
6680             m_rowLabelWin->Show( true );
6681             if ( m_colLabelHeight > 0 )
6682                 m_cornerLabelWin->Show( true );
6683         }
6684
6685         m_rowLabelWidth = width;
6686         CalcWindowSizes();
6687         wxScrolledWindow::Refresh( true );
6688     }
6689 }
6690
6691 void wxGrid::SetColLabelSize( int height )
6692 {
6693     wxASSERT( height >=0 || height == wxGRID_AUTOSIZE );
6694
6695     if ( height == wxGRID_AUTOSIZE )
6696     {
6697         height = CalcColOrRowLabelAreaMinSize(wxGRID_COLUMN);
6698     }
6699
6700     if ( height != m_colLabelHeight )
6701     {
6702         if ( height == 0 )
6703         {
6704             m_colWindow->Show( false );
6705             m_cornerLabelWin->Show( false );
6706         }
6707         else if ( m_colLabelHeight == 0 )
6708         {
6709             m_colWindow->Show( true );
6710             if ( m_rowLabelWidth > 0 )
6711                 m_cornerLabelWin->Show( true );
6712         }
6713
6714         m_colLabelHeight = height;
6715         CalcWindowSizes();
6716         wxScrolledWindow::Refresh( true );
6717     }
6718 }
6719
6720 void wxGrid::SetLabelBackgroundColour( const wxColour& colour )
6721 {
6722     if ( m_labelBackgroundColour != colour )
6723     {
6724         m_labelBackgroundColour = colour;
6725         m_rowLabelWin->SetBackgroundColour( colour );
6726         m_colWindow->SetBackgroundColour( colour );
6727         m_cornerLabelWin->SetBackgroundColour( colour );
6728
6729         if ( !GetBatchCount() )
6730         {
6731             m_rowLabelWin->Refresh();
6732             m_colWindow->Refresh();
6733             m_cornerLabelWin->Refresh();
6734         }
6735     }
6736 }
6737
6738 void wxGrid::SetLabelTextColour( const wxColour& colour )
6739 {
6740     if ( m_labelTextColour != colour )
6741     {
6742         m_labelTextColour = colour;
6743         if ( !GetBatchCount() )
6744         {
6745             m_rowLabelWin->Refresh();
6746             m_colWindow->Refresh();
6747         }
6748     }
6749 }
6750
6751 void wxGrid::SetLabelFont( const wxFont& font )
6752 {
6753     m_labelFont = font;
6754     if ( !GetBatchCount() )
6755     {
6756         m_rowLabelWin->Refresh();
6757         m_colWindow->Refresh();
6758     }
6759 }
6760
6761 void wxGrid::SetRowLabelAlignment( int horiz, int vert )
6762 {
6763     // allow old (incorrect) defs to be used
6764     switch ( horiz )
6765     {
6766         case wxLEFT:   horiz = wxALIGN_LEFT; break;
6767         case wxRIGHT:  horiz = wxALIGN_RIGHT; break;
6768         case wxCENTRE: horiz = wxALIGN_CENTRE; break;
6769     }
6770
6771     switch ( vert )
6772     {
6773         case wxTOP:    vert = wxALIGN_TOP;    break;
6774         case wxBOTTOM: vert = wxALIGN_BOTTOM; break;
6775         case wxCENTRE: vert = wxALIGN_CENTRE; break;
6776     }
6777
6778     if ( horiz == wxALIGN_LEFT || horiz == wxALIGN_CENTRE || horiz == wxALIGN_RIGHT )
6779     {
6780         m_rowLabelHorizAlign = horiz;
6781     }
6782
6783     if ( vert == wxALIGN_TOP || vert == wxALIGN_CENTRE || vert == wxALIGN_BOTTOM )
6784     {
6785         m_rowLabelVertAlign = vert;
6786     }
6787
6788     if ( !GetBatchCount() )
6789     {
6790         m_rowLabelWin->Refresh();
6791     }
6792 }
6793
6794 void wxGrid::SetColLabelAlignment( int horiz, int vert )
6795 {
6796     // allow old (incorrect) defs to be used
6797     switch ( horiz )
6798     {
6799         case wxLEFT:   horiz = wxALIGN_LEFT; break;
6800         case wxRIGHT:  horiz = wxALIGN_RIGHT; break;
6801         case wxCENTRE: horiz = wxALIGN_CENTRE; break;
6802     }
6803
6804     switch ( vert )
6805     {
6806         case wxTOP:    vert = wxALIGN_TOP;    break;
6807         case wxBOTTOM: vert = wxALIGN_BOTTOM; break;
6808         case wxCENTRE: vert = wxALIGN_CENTRE; break;
6809     }
6810
6811     if ( horiz == wxALIGN_LEFT || horiz == wxALIGN_CENTRE || horiz == wxALIGN_RIGHT )
6812     {
6813         m_colLabelHorizAlign = horiz;
6814     }
6815
6816     if ( vert == wxALIGN_TOP || vert == wxALIGN_CENTRE || vert == wxALIGN_BOTTOM )
6817     {
6818         m_colLabelVertAlign = vert;
6819     }
6820
6821     if ( !GetBatchCount() )
6822     {
6823         m_colWindow->Refresh();
6824     }
6825 }
6826
6827 // Note: under MSW, the default column label font must be changed because it
6828 //       does not support vertical printing
6829 //
6830 // Example: wxFont font(9, wxSWISS, wxNORMAL, wxBOLD);
6831 //                      pGrid->SetLabelFont(font);
6832 //                      pGrid->SetColLabelTextOrientation(wxVERTICAL);
6833 //
6834 void wxGrid::SetColLabelTextOrientation( int textOrientation )
6835 {
6836     if ( textOrientation == wxHORIZONTAL || textOrientation == wxVERTICAL )
6837         m_colLabelTextOrientation = textOrientation;
6838
6839     if ( !GetBatchCount() )
6840         m_colWindow->Refresh();
6841 }
6842
6843 void wxGrid::SetRowLabelValue( int row, const wxString& s )
6844 {
6845     if ( m_table )
6846     {
6847         m_table->SetRowLabelValue( row, s );
6848         if ( !GetBatchCount() )
6849         {
6850             wxRect rect = CellToRect( row, 0 );
6851             if ( rect.height > 0 )
6852             {
6853                 CalcScrolledPosition(0, rect.y, &rect.x, &rect.y);
6854                 rect.x = 0;
6855                 rect.width = m_rowLabelWidth;
6856                 m_rowLabelWin->Refresh( true, &rect );
6857             }
6858         }
6859     }
6860 }
6861
6862 void wxGrid::SetColLabelValue( int col, const wxString& s )
6863 {
6864     if ( m_table )
6865     {
6866         m_table->SetColLabelValue( col, s );
6867         if ( !GetBatchCount() )
6868         {
6869             if ( m_useNativeHeader )
6870             {
6871                 GetGridColHeader()->UpdateColumn(col);
6872             }
6873             else
6874             {
6875                 wxRect rect = CellToRect( 0, col );
6876                 if ( rect.width > 0 )
6877                 {
6878                     CalcScrolledPosition(rect.x, 0, &rect.x, &rect.y);
6879                     rect.y = 0;
6880                     rect.height = m_colLabelHeight;
6881                     GetColLabelWindow()->Refresh( true, &rect );
6882                 }
6883             }
6884         }
6885     }
6886 }
6887
6888 void wxGrid::SetGridLineColour( const wxColour& colour )
6889 {
6890     if ( m_gridLineColour != colour )
6891     {
6892         m_gridLineColour = colour;
6893
6894         if ( GridLinesEnabled() )
6895             RedrawGridLines();
6896     }
6897 }
6898
6899 void wxGrid::SetCellHighlightColour( const wxColour& colour )
6900 {
6901     if ( m_cellHighlightColour != colour )
6902     {
6903         m_cellHighlightColour = colour;
6904
6905         wxClientDC dc( m_gridWin );
6906         PrepareDC( dc );
6907         wxGridCellAttr* attr = GetCellAttr(m_currentCellCoords);
6908         DrawCellHighlight(dc, attr);
6909         attr->DecRef();
6910     }
6911 }
6912
6913 void wxGrid::SetCellHighlightPenWidth(int width)
6914 {
6915     if (m_cellHighlightPenWidth != width)
6916     {
6917         m_cellHighlightPenWidth = width;
6918
6919         // Just redrawing the cell highlight is not enough since that won't
6920         // make any visible change if the thickness is getting smaller.
6921         int row = m_currentCellCoords.GetRow();
6922         int col = m_currentCellCoords.GetCol();
6923         if ( row == -1 || col == -1 || GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
6924             return;
6925
6926         wxRect rect = CellToRect(row, col);
6927         m_gridWin->Refresh(true, &rect);
6928     }
6929 }
6930
6931 void wxGrid::SetCellHighlightROPenWidth(int width)
6932 {
6933     if (m_cellHighlightROPenWidth != width)
6934     {
6935         m_cellHighlightROPenWidth = width;
6936
6937         // Just redrawing the cell highlight is not enough since that won't
6938         // make any visible change if the thickness is getting smaller.
6939         int row = m_currentCellCoords.GetRow();
6940         int col = m_currentCellCoords.GetCol();
6941         if ( row == -1 || col == -1 ||
6942                 GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
6943             return;
6944
6945         wxRect rect = CellToRect(row, col);
6946         m_gridWin->Refresh(true, &rect);
6947     }
6948 }
6949
6950 void wxGrid::RedrawGridLines()
6951 {
6952     // the lines will be redrawn when the window is thawn
6953     if ( GetBatchCount() )
6954         return;
6955
6956     if ( GridLinesEnabled() )
6957     {
6958         wxClientDC dc( m_gridWin );
6959         PrepareDC( dc );
6960         DrawAllGridLines( dc, wxRegion() );
6961     }
6962     else // remove the grid lines
6963     {
6964         m_gridWin->Refresh();
6965     }
6966 }
6967
6968 void wxGrid::EnableGridLines( bool enable )
6969 {
6970     if ( enable != m_gridLinesEnabled )
6971     {
6972         m_gridLinesEnabled = enable;
6973
6974         RedrawGridLines();
6975     }
6976 }
6977
6978 void wxGrid::DoClipGridLines(bool& var, bool clip)
6979 {
6980     if ( clip != var )
6981     {
6982         var = clip;
6983
6984         if ( GridLinesEnabled() )
6985             RedrawGridLines();
6986     }
6987 }
6988
6989 int wxGrid::GetDefaultRowSize() const
6990 {
6991     return m_defaultRowHeight;
6992 }
6993
6994 int wxGrid::GetRowSize( int row ) const
6995 {
6996     wxCHECK_MSG( row >= 0 && row < m_numRows, 0, wxT("invalid row index") );
6997
6998     return GetRowHeight(row);
6999 }
7000
7001 int wxGrid::GetDefaultColSize() const
7002 {
7003     return m_defaultColWidth;
7004 }
7005
7006 int wxGrid::GetColSize( int col ) const
7007 {
7008     wxCHECK_MSG( col >= 0 && col < m_numCols, 0, wxT("invalid column index") );
7009
7010     return GetColWidth(col);
7011 }
7012
7013 // ============================================================================
7014 // access to the grid attributes: each of them has a default value in the grid
7015 // itself and may be overidden on a per-cell basis
7016 // ============================================================================
7017
7018 // ----------------------------------------------------------------------------
7019 // setting default attributes
7020 // ----------------------------------------------------------------------------
7021
7022 void wxGrid::SetDefaultCellBackgroundColour( const wxColour& col )
7023 {
7024     m_defaultCellAttr->SetBackgroundColour(col);
7025 #ifdef __WXGTK__
7026     m_gridWin->SetBackgroundColour(col);
7027 #endif
7028 }
7029
7030 void wxGrid::SetDefaultCellTextColour( const wxColour& col )
7031 {
7032     m_defaultCellAttr->SetTextColour(col);
7033 }
7034
7035 void wxGrid::SetDefaultCellAlignment( int horiz, int vert )
7036 {
7037     m_defaultCellAttr->SetAlignment(horiz, vert);
7038 }
7039
7040 void wxGrid::SetDefaultCellOverflow( bool allow )
7041 {
7042     m_defaultCellAttr->SetOverflow(allow);
7043 }
7044
7045 void wxGrid::SetDefaultCellFont( const wxFont& font )
7046 {
7047     m_defaultCellAttr->SetFont(font);
7048 }
7049
7050 // For editors and renderers the type registry takes precedence over the
7051 // default attr, so we need to register the new editor/renderer for the string
7052 // data type in order to make setting a default editor/renderer appear to
7053 // work correctly.
7054
7055 void wxGrid::SetDefaultRenderer(wxGridCellRenderer *renderer)
7056 {
7057     RegisterDataType(wxGRID_VALUE_STRING,
7058                      renderer,
7059                      GetDefaultEditorForType(wxGRID_VALUE_STRING));
7060 }
7061
7062 void wxGrid::SetDefaultEditor(wxGridCellEditor *editor)
7063 {
7064     RegisterDataType(wxGRID_VALUE_STRING,
7065                      GetDefaultRendererForType(wxGRID_VALUE_STRING),
7066                      editor);
7067 }
7068
7069 // ----------------------------------------------------------------------------
7070 // access to the default attributes
7071 // ----------------------------------------------------------------------------
7072
7073 wxColour wxGrid::GetDefaultCellBackgroundColour() const
7074 {
7075     return m_defaultCellAttr->GetBackgroundColour();
7076 }
7077
7078 wxColour wxGrid::GetDefaultCellTextColour() const
7079 {
7080     return m_defaultCellAttr->GetTextColour();
7081 }
7082
7083 wxFont wxGrid::GetDefaultCellFont() const
7084 {
7085     return m_defaultCellAttr->GetFont();
7086 }
7087
7088 void wxGrid::GetDefaultCellAlignment( int *horiz, int *vert ) const
7089 {
7090     m_defaultCellAttr->GetAlignment(horiz, vert);
7091 }
7092
7093 bool wxGrid::GetDefaultCellOverflow() const
7094 {
7095     return m_defaultCellAttr->GetOverflow();
7096 }
7097
7098 wxGridCellRenderer *wxGrid::GetDefaultRenderer() const
7099 {
7100     return m_defaultCellAttr->GetRenderer(NULL, 0, 0);
7101 }
7102
7103 wxGridCellEditor *wxGrid::GetDefaultEditor() const
7104 {
7105     return m_defaultCellAttr->GetEditor(NULL, 0, 0);
7106 }
7107
7108 // ----------------------------------------------------------------------------
7109 // access to cell attributes
7110 // ----------------------------------------------------------------------------
7111
7112 wxColour wxGrid::GetCellBackgroundColour(int row, int col) const
7113 {
7114     wxGridCellAttr *attr = GetCellAttr(row, col);
7115     wxColour colour = attr->GetBackgroundColour();
7116     attr->DecRef();
7117
7118     return colour;
7119 }
7120
7121 wxColour wxGrid::GetCellTextColour( int row, int col ) const
7122 {
7123     wxGridCellAttr *attr = GetCellAttr(row, col);
7124     wxColour colour = attr->GetTextColour();
7125     attr->DecRef();
7126
7127     return colour;
7128 }
7129
7130 wxFont wxGrid::GetCellFont( int row, int col ) const
7131 {
7132     wxGridCellAttr *attr = GetCellAttr(row, col);
7133     wxFont font = attr->GetFont();
7134     attr->DecRef();
7135
7136     return font;
7137 }
7138
7139 void wxGrid::GetCellAlignment( int row, int col, int *horiz, int *vert ) const
7140 {
7141     wxGridCellAttr *attr = GetCellAttr(row, col);
7142     attr->GetAlignment(horiz, vert);
7143     attr->DecRef();
7144 }
7145
7146 bool wxGrid::GetCellOverflow( int row, int col ) const
7147 {
7148     wxGridCellAttr *attr = GetCellAttr(row, col);
7149     bool allow = attr->GetOverflow();
7150     attr->DecRef();
7151
7152     return allow;
7153 }
7154
7155 wxGrid::CellSpan
7156 wxGrid::GetCellSize( int row, int col, int *num_rows, int *num_cols ) const
7157 {
7158     wxGridCellAttr *attr = GetCellAttr(row, col);
7159     attr->GetSize( num_rows, num_cols );
7160     attr->DecRef();
7161
7162     if ( *num_rows == 1 && *num_cols == 1 )
7163         return CellSpan_None; // just a normal cell
7164
7165     if ( *num_rows < 0 || *num_cols < 0 )
7166         return CellSpan_Inside; // covered by a multi-span cell
7167
7168     // this cell spans multiple cells to its right/bottom
7169     return CellSpan_Main;
7170 }
7171
7172 wxGridCellRenderer* wxGrid::GetCellRenderer(int row, int col) const
7173 {
7174     wxGridCellAttr* attr = GetCellAttr(row, col);
7175     wxGridCellRenderer* renderer = attr->GetRenderer(this, row, col);
7176     attr->DecRef();
7177
7178     return renderer;
7179 }
7180
7181 wxGridCellEditor* wxGrid::GetCellEditor(int row, int col) const
7182 {
7183     wxGridCellAttr* attr = GetCellAttr(row, col);
7184     wxGridCellEditor* editor = attr->GetEditor(this, row, col);
7185     attr->DecRef();
7186
7187     return editor;
7188 }
7189
7190 bool wxGrid::IsReadOnly(int row, int col) const
7191 {
7192     wxGridCellAttr* attr = GetCellAttr(row, col);
7193     bool isReadOnly = attr->IsReadOnly();
7194     attr->DecRef();
7195
7196     return isReadOnly;
7197 }
7198
7199 // ----------------------------------------------------------------------------
7200 // attribute support: cache, automatic provider creation, ...
7201 // ----------------------------------------------------------------------------
7202
7203 bool wxGrid::CanHaveAttributes() const
7204 {
7205     if ( !m_table )
7206     {
7207         return false;
7208     }
7209
7210     return m_table->CanHaveAttributes();
7211 }
7212
7213 void wxGrid::ClearAttrCache()
7214 {
7215     if ( m_attrCache.row != -1 )
7216     {
7217         wxGridCellAttr *oldAttr = m_attrCache.attr;
7218         m_attrCache.attr = NULL;
7219         m_attrCache.row = -1;
7220         // wxSafeDecRec(...) might cause event processing that accesses
7221         // the cached attribute, if one exists (e.g. by deleting the
7222         // editor stored within the attribute). Therefore it is important
7223         // to invalidate the cache  before calling wxSafeDecRef!
7224         wxSafeDecRef(oldAttr);
7225     }
7226 }
7227
7228 void wxGrid::RefreshAttr(int row, int col)
7229 {
7230     if ( m_attrCache.row == row && m_attrCache.col == col )
7231         ClearAttrCache();
7232 }
7233
7234
7235 void wxGrid::CacheAttr(int row, int col, wxGridCellAttr *attr) const
7236 {
7237     if ( attr != NULL )
7238     {
7239         wxGrid * const self = const_cast<wxGrid *>(this);
7240
7241         self->ClearAttrCache();
7242         self->m_attrCache.row = row;
7243         self->m_attrCache.col = col;
7244         self->m_attrCache.attr = attr;
7245         wxSafeIncRef(attr);
7246     }
7247 }
7248
7249 bool wxGrid::LookupAttr(int row, int col, wxGridCellAttr **attr) const
7250 {
7251     if ( row == m_attrCache.row && col == m_attrCache.col )
7252     {
7253         *attr = m_attrCache.attr;
7254         wxSafeIncRef(m_attrCache.attr);
7255
7256 #ifdef DEBUG_ATTR_CACHE
7257         gs_nAttrCacheHits++;
7258 #endif
7259
7260         return true;
7261     }
7262     else
7263     {
7264 #ifdef DEBUG_ATTR_CACHE
7265         gs_nAttrCacheMisses++;
7266 #endif
7267
7268         return false;
7269     }
7270 }
7271
7272 wxGridCellAttr *wxGrid::GetCellAttr(int row, int col) const
7273 {
7274     wxGridCellAttr *attr = NULL;
7275     // Additional test to avoid looking at the cache e.g. for
7276     // wxNoCellCoords, as this will confuse memory management.
7277     if ( row >= 0 )
7278     {
7279         if ( !LookupAttr(row, col, &attr) )
7280         {
7281             attr = m_table ? m_table->GetAttr(row, col, wxGridCellAttr::Any)
7282                            : NULL;
7283             CacheAttr(row, col, attr);
7284         }
7285     }
7286
7287     if (attr)
7288     {
7289         attr->SetDefAttr(m_defaultCellAttr);
7290     }
7291     else
7292     {
7293         attr = m_defaultCellAttr;
7294         attr->IncRef();
7295     }
7296
7297     return attr;
7298 }
7299
7300 wxGridCellAttr *wxGrid::GetOrCreateCellAttr(int row, int col) const
7301 {
7302     wxGridCellAttr *attr = NULL;
7303     bool canHave = ((wxGrid*)this)->CanHaveAttributes();
7304
7305     wxCHECK_MSG( canHave, attr, wxT("Cell attributes not allowed"));
7306     wxCHECK_MSG( m_table, attr, wxT("must have a table") );
7307
7308     attr = m_table->GetAttr(row, col, wxGridCellAttr::Cell);
7309     if ( !attr )
7310     {
7311         attr = new wxGridCellAttr(m_defaultCellAttr);
7312
7313         // artificially inc the ref count to match DecRef() in caller
7314         attr->IncRef();
7315         m_table->SetAttr(attr, row, col);
7316     }
7317
7318     return attr;
7319 }
7320
7321 // ----------------------------------------------------------------------------
7322 // setting column attributes (wrappers around SetColAttr)
7323 // ----------------------------------------------------------------------------
7324
7325 void wxGrid::SetColFormatBool(int col)
7326 {
7327     SetColFormatCustom(col, wxGRID_VALUE_BOOL);
7328 }
7329
7330 void wxGrid::SetColFormatNumber(int col)
7331 {
7332     SetColFormatCustom(col, wxGRID_VALUE_NUMBER);
7333 }
7334
7335 void wxGrid::SetColFormatFloat(int col, int width, int precision)
7336 {
7337     wxString typeName = wxGRID_VALUE_FLOAT;
7338     if ( (width != -1) || (precision != -1) )
7339     {
7340         typeName << wxT(':') << width << wxT(',') << precision;
7341     }
7342
7343     SetColFormatCustom(col, typeName);
7344 }
7345
7346 void wxGrid::SetColFormatCustom(int col, const wxString& typeName)
7347 {
7348     wxGridCellAttr *attr = m_table->GetAttr(-1, col, wxGridCellAttr::Col );
7349     if (!attr)
7350         attr = new wxGridCellAttr;
7351     wxGridCellRenderer *renderer = GetDefaultRendererForType(typeName);
7352     attr->SetRenderer(renderer);
7353     wxGridCellEditor *editor = GetDefaultEditorForType(typeName);
7354     attr->SetEditor(editor);
7355
7356     SetColAttr(col, attr);
7357
7358 }
7359
7360 // ----------------------------------------------------------------------------
7361 // setting cell attributes: this is forwarded to the table
7362 // ----------------------------------------------------------------------------
7363
7364 void wxGrid::SetAttr(int row, int col, wxGridCellAttr *attr)
7365 {
7366     if ( CanHaveAttributes() )
7367     {
7368         m_table->SetAttr(attr, row, col);
7369         ClearAttrCache();
7370     }
7371     else
7372     {
7373         wxSafeDecRef(attr);
7374     }
7375 }
7376
7377 void wxGrid::SetRowAttr(int row, wxGridCellAttr *attr)
7378 {
7379     if ( CanHaveAttributes() )
7380     {
7381         m_table->SetRowAttr(attr, row);
7382         ClearAttrCache();
7383     }
7384     else
7385     {
7386         wxSafeDecRef(attr);
7387     }
7388 }
7389
7390 void wxGrid::SetColAttr(int col, wxGridCellAttr *attr)
7391 {
7392     if ( CanHaveAttributes() )
7393     {
7394         m_table->SetColAttr(attr, col);
7395         ClearAttrCache();
7396     }
7397     else
7398     {
7399         wxSafeDecRef(attr);
7400     }
7401 }
7402
7403 void wxGrid::SetCellBackgroundColour( int row, int col, const wxColour& colour )
7404 {
7405     if ( CanHaveAttributes() )
7406     {
7407         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7408         attr->SetBackgroundColour(colour);
7409         attr->DecRef();
7410     }
7411 }
7412
7413 void wxGrid::SetCellTextColour( int row, int col, const wxColour& colour )
7414 {
7415     if ( CanHaveAttributes() )
7416     {
7417         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7418         attr->SetTextColour(colour);
7419         attr->DecRef();
7420     }
7421 }
7422
7423 void wxGrid::SetCellFont( int row, int col, const wxFont& font )
7424 {
7425     if ( CanHaveAttributes() )
7426     {
7427         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7428         attr->SetFont(font);
7429         attr->DecRef();
7430     }
7431 }
7432
7433 void wxGrid::SetCellAlignment( int row, int col, int horiz, int vert )
7434 {
7435     if ( CanHaveAttributes() )
7436     {
7437         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7438         attr->SetAlignment(horiz, vert);
7439         attr->DecRef();
7440     }
7441 }
7442
7443 void wxGrid::SetCellOverflow( int row, int col, bool allow )
7444 {
7445     if ( CanHaveAttributes() )
7446     {
7447         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7448         attr->SetOverflow(allow);
7449         attr->DecRef();
7450     }
7451 }
7452
7453 void wxGrid::SetCellSize( int row, int col, int num_rows, int num_cols )
7454 {
7455     if ( CanHaveAttributes() )
7456     {
7457         int cell_rows, cell_cols;
7458
7459         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7460         attr->GetSize(&cell_rows, &cell_cols);
7461         attr->SetSize(num_rows, num_cols);
7462         attr->DecRef();
7463
7464         // Cannot set the size of a cell to 0 or negative values
7465         // While it is perfectly legal to do that, this function cannot
7466         // handle all the possibilies, do it by hand by getting the CellAttr.
7467         // You can only set the size of a cell to 1,1 or greater with this fn
7468         wxASSERT_MSG( !((cell_rows < 1) || (cell_cols < 1)),
7469                       wxT("wxGrid::SetCellSize setting cell size that is already part of another cell"));
7470         wxASSERT_MSG( !((num_rows < 1) || (num_cols < 1)),
7471                       wxT("wxGrid::SetCellSize setting cell size to < 1"));
7472
7473         // if this was already a multicell then "turn off" the other cells first
7474         if ((cell_rows > 1) || (cell_cols > 1))
7475         {
7476             int i, j;
7477             for (j=row; j < row + cell_rows; j++)
7478             {
7479                 for (i=col; i < col + cell_cols; i++)
7480                 {
7481                     if ((i != col) || (j != row))
7482                     {
7483                         wxGridCellAttr *attr_stub = GetOrCreateCellAttr(j, i);
7484                         attr_stub->SetSize( 1, 1 );
7485                         attr_stub->DecRef();
7486                     }
7487                 }
7488             }
7489         }
7490
7491         // mark the cells that will be covered by this cell to
7492         // negative or zero values to point back at this cell
7493         if (((num_rows > 1) || (num_cols > 1)) && (num_rows >= 1) && (num_cols >= 1))
7494         {
7495             int i, j;
7496             for (j=row; j < row + num_rows; j++)
7497             {
7498                 for (i=col; i < col + num_cols; i++)
7499                 {
7500                     if ((i != col) || (j != row))
7501                     {
7502                         wxGridCellAttr *attr_stub = GetOrCreateCellAttr(j, i);
7503                         attr_stub->SetSize( row - j, col - i );
7504                         attr_stub->DecRef();
7505                     }
7506                 }
7507             }
7508         }
7509     }
7510 }
7511
7512 void wxGrid::SetCellRenderer(int row, int col, wxGridCellRenderer *renderer)
7513 {
7514     if ( CanHaveAttributes() )
7515     {
7516         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7517         attr->SetRenderer(renderer);
7518         attr->DecRef();
7519     }
7520 }
7521
7522 void wxGrid::SetCellEditor(int row, int col, wxGridCellEditor* editor)
7523 {
7524     if ( CanHaveAttributes() )
7525     {
7526         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7527         attr->SetEditor(editor);
7528         attr->DecRef();
7529     }
7530 }
7531
7532 void wxGrid::SetReadOnly(int row, int col, bool isReadOnly)
7533 {
7534     if ( CanHaveAttributes() )
7535     {
7536         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7537         attr->SetReadOnly(isReadOnly);
7538         attr->DecRef();
7539     }
7540 }
7541
7542 // ----------------------------------------------------------------------------
7543 // Data type registration
7544 // ----------------------------------------------------------------------------
7545
7546 void wxGrid::RegisterDataType(const wxString& typeName,
7547                               wxGridCellRenderer* renderer,
7548                               wxGridCellEditor* editor)
7549 {
7550     m_typeRegistry->RegisterDataType(typeName, renderer, editor);
7551 }
7552
7553
7554 wxGridCellEditor * wxGrid::GetDefaultEditorForCell(int row, int col) const
7555 {
7556     wxString typeName = m_table->GetTypeName(row, col);
7557     return GetDefaultEditorForType(typeName);
7558 }
7559
7560 wxGridCellRenderer * wxGrid::GetDefaultRendererForCell(int row, int col) const
7561 {
7562     wxString typeName = m_table->GetTypeName(row, col);
7563     return GetDefaultRendererForType(typeName);
7564 }
7565
7566 wxGridCellEditor * wxGrid::GetDefaultEditorForType(const wxString& typeName) const
7567 {
7568     int index = m_typeRegistry->FindOrCloneDataType(typeName);
7569     if ( index == wxNOT_FOUND )
7570     {
7571         wxFAIL_MSG(wxString::Format(wxT("Unknown data type name [%s]"), typeName.c_str()));
7572
7573         return NULL;
7574     }
7575
7576     return m_typeRegistry->GetEditor(index);
7577 }
7578
7579 wxGridCellRenderer * wxGrid::GetDefaultRendererForType(const wxString& typeName) const
7580 {
7581     int index = m_typeRegistry->FindOrCloneDataType(typeName);
7582     if ( index == wxNOT_FOUND )
7583     {
7584         wxFAIL_MSG(wxString::Format(wxT("Unknown data type name [%s]"), typeName.c_str()));
7585
7586         return NULL;
7587     }
7588
7589     return m_typeRegistry->GetRenderer(index);
7590 }
7591
7592 // ----------------------------------------------------------------------------
7593 // row/col size
7594 // ----------------------------------------------------------------------------
7595
7596 void wxGrid::DoDisableLineResize(int line, wxGridFixedIndicesSet *& setFixed)
7597 {
7598     if ( !setFixed )
7599     {
7600         setFixed = new wxGridFixedIndicesSet;
7601     }
7602
7603     setFixed->insert(line);
7604 }
7605
7606 bool
7607 wxGrid::DoCanResizeLine(int line, const wxGridFixedIndicesSet *setFixed) const
7608 {
7609     return !setFixed || !setFixed->count(line);
7610 }
7611
7612 void wxGrid::EnableDragRowSize( bool enable )
7613 {
7614     m_canDragRowSize = enable;
7615 }
7616
7617 void wxGrid::EnableDragColSize( bool enable )
7618 {
7619     m_canDragColSize = enable;
7620 }
7621
7622 void wxGrid::EnableDragGridSize( bool enable )
7623 {
7624     m_canDragGridSize = enable;
7625 }
7626
7627 void wxGrid::EnableDragCell( bool enable )
7628 {
7629     m_canDragCell = enable;
7630 }
7631
7632 void wxGrid::SetDefaultRowSize( int height, bool resizeExistingRows )
7633 {
7634     m_defaultRowHeight = wxMax( height, m_minAcceptableRowHeight );
7635
7636     if ( resizeExistingRows )
7637     {
7638         // since we are resizing all rows to the default row size,
7639         // we can simply clear the row heights and row bottoms
7640         // arrays (which also allows us to take advantage of
7641         // some speed optimisations)
7642         m_rowHeights.Empty();
7643         m_rowBottoms.Empty();
7644         if ( !GetBatchCount() )
7645             CalcDimensions();
7646     }
7647 }
7648
7649 void wxGrid::SetRowSize( int row, int height )
7650 {
7651     wxCHECK_RET( row >= 0 && row < m_numRows, wxT("invalid row index") );
7652
7653     // if < 0 then calculate new height from label
7654     if ( height < 0 )
7655     {
7656         long w, h;
7657         wxArrayString lines;
7658         wxClientDC dc(m_rowLabelWin);
7659         dc.SetFont(GetLabelFont());
7660         StringToLines(GetRowLabelValue( row ), lines);
7661         GetTextBoxSize( dc, lines, &w, &h );
7662         //check that it is not less than the minimal height
7663         height = wxMax(h, GetRowMinimalAcceptableHeight());
7664     }
7665
7666     // See comment in SetColSize
7667     if ( height < GetRowMinimalAcceptableHeight())
7668         return;
7669
7670     if ( m_rowHeights.IsEmpty() )
7671     {
7672         // need to really create the array
7673         InitRowHeights();
7674     }
7675
7676     int h = wxMax( 0, height );
7677     int diff = h - m_rowHeights[row];
7678
7679     m_rowHeights[row] = h;
7680     for ( int i = row; i < m_numRows; i++ )
7681     {
7682         m_rowBottoms[i] += diff;
7683     }
7684
7685     if ( !GetBatchCount() )
7686         CalcDimensions();
7687 }
7688
7689 void wxGrid::SetDefaultColSize( int width, bool resizeExistingCols )
7690 {
7691     // we dont allow zero default column width
7692     m_defaultColWidth = wxMax( wxMax( width, m_minAcceptableColWidth ), 1 );
7693
7694     if ( resizeExistingCols )
7695     {
7696         // since we are resizing all columns to the default column size,
7697         // we can simply clear the col widths and col rights
7698         // arrays (which also allows us to take advantage of
7699         // some speed optimisations)
7700         m_colWidths.Empty();
7701         m_colRights.Empty();
7702         if ( !GetBatchCount() )
7703             CalcDimensions();
7704     }
7705 }
7706
7707 void wxGrid::SetColSize( int col, int width )
7708 {
7709     wxCHECK_RET( col >= 0 && col < m_numCols, wxT("invalid column index") );
7710
7711     // if < 0 then calculate new width from label
7712     if ( width < 0 )
7713     {
7714         long w, h;
7715         wxArrayString lines;
7716         wxClientDC dc(m_colWindow);
7717         dc.SetFont(GetLabelFont());
7718         StringToLines(GetColLabelValue(col), lines);
7719         if ( GetColLabelTextOrientation() == wxHORIZONTAL )
7720             GetTextBoxSize( dc, lines, &w, &h );
7721         else
7722             GetTextBoxSize( dc, lines, &h, &w );
7723         width = w + 6;
7724         //check that it is not less than the minimal width
7725         width = wxMax(width, GetColMinimalAcceptableWidth());
7726     }
7727
7728     // we intentionally don't test whether the width is less than
7729     // GetColMinimalWidth() here but we do compare it with
7730     // GetColMinimalAcceptableWidth() as otherwise things currently break (see
7731     // #651) -- and we also always allow the width of 0 as it has the special
7732     // sense of hiding the column
7733     if ( width > 0 && width < GetColMinimalAcceptableWidth() )
7734         return;
7735
7736     if ( m_colWidths.IsEmpty() )
7737     {
7738         // need to really create the array
7739         InitColWidths();
7740     }
7741
7742     const int diff = width - m_colWidths[col];
7743     m_colWidths[col] = width;
7744     if ( m_useNativeHeader )
7745         GetGridColHeader()->UpdateColumn(col);
7746     //else: will be refreshed when the header is redrawn
7747
7748     for ( int colPos = GetColPos(col); colPos < m_numCols; colPos++ )
7749     {
7750         m_colRights[GetColAt(colPos)] += diff;
7751     }
7752
7753     if ( !GetBatchCount() )
7754     {
7755         CalcDimensions();
7756         Refresh();
7757     }
7758 }
7759
7760 void wxGrid::SetColMinimalWidth( int col, int width )
7761 {
7762     if (width > GetColMinimalAcceptableWidth())
7763     {
7764         wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)col;
7765         m_colMinWidths[key] = width;
7766     }
7767 }
7768
7769 void wxGrid::SetRowMinimalHeight( int row, int width )
7770 {
7771     if (width > GetRowMinimalAcceptableHeight())
7772     {
7773         wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)row;
7774         m_rowMinHeights[key] = width;
7775     }
7776 }
7777
7778 int wxGrid::GetColMinimalWidth(int col) const
7779 {
7780     wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)col;
7781     wxLongToLongHashMap::const_iterator it = m_colMinWidths.find(key);
7782
7783     return it != m_colMinWidths.end() ? (int)it->second : m_minAcceptableColWidth;
7784 }
7785
7786 int wxGrid::GetRowMinimalHeight(int row) const
7787 {
7788     wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)row;
7789     wxLongToLongHashMap::const_iterator it = m_rowMinHeights.find(key);
7790
7791     return it != m_rowMinHeights.end() ? (int)it->second : m_minAcceptableRowHeight;
7792 }
7793
7794 void wxGrid::SetColMinimalAcceptableWidth( int width )
7795 {
7796     // We do allow a width of 0 since this gives us
7797     // an easy way to temporarily hiding columns.
7798     if ( width >= 0 )
7799         m_minAcceptableColWidth = width;
7800 }
7801
7802 void wxGrid::SetRowMinimalAcceptableHeight( int height )
7803 {
7804     // We do allow a height of 0 since this gives us
7805     // an easy way to temporarily hiding rows.
7806     if ( height >= 0 )
7807         m_minAcceptableRowHeight = height;
7808 }
7809
7810 int  wxGrid::GetColMinimalAcceptableWidth() const
7811 {
7812     return m_minAcceptableColWidth;
7813 }
7814
7815 int  wxGrid::GetRowMinimalAcceptableHeight() const
7816 {
7817     return m_minAcceptableRowHeight;
7818 }
7819
7820 // ----------------------------------------------------------------------------
7821 // auto sizing
7822 // ----------------------------------------------------------------------------
7823
7824 void
7825 wxGrid::AutoSizeColOrRow(int colOrRow, bool setAsMin, wxGridDirection direction)
7826 {
7827     const bool column = direction == wxGRID_COLUMN;
7828
7829     wxClientDC dc(m_gridWin);
7830
7831     // cancel editing of cell
7832     HideCellEditControl();
7833     SaveEditControlValue();
7834
7835     // initialize both of them just to avoid compiler warnings even if only
7836     // really needs to be initialized here
7837     int row,
7838         col;
7839     if ( column )
7840     {
7841         row = -1;
7842         col = colOrRow;
7843     }
7844     else
7845     {
7846         row = colOrRow;
7847         col = -1;
7848     }
7849
7850     wxCoord extent, extentMax = 0;
7851     int max = column ? m_numRows : m_numCols;
7852     for ( int rowOrCol = 0; rowOrCol < max; rowOrCol++ )
7853     {
7854         if ( column )
7855             row = rowOrCol;
7856         else
7857             col = rowOrCol;
7858
7859         // we need to account for the cells spanning multiple columns/rows:
7860         // while they may need a lot of space, they don't need all of it in
7861         // this column/row
7862         int numRows, numCols;
7863         const CellSpan span = GetCellSize(row, col, &numRows, &numCols);
7864         if ( span == CellSpan_Inside )
7865         {
7866             // we need to get the size of the main cell, not of a cell hidden
7867             // by it
7868             row += numRows;
7869             col += numCols;
7870
7871             // get the size of the main cell too
7872             GetCellSize(row, col, &numRows, &numCols);
7873         }
7874
7875         wxGridCellAttr *attr = GetCellAttr(row, col);
7876         wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
7877         if ( renderer )
7878         {
7879             wxSize size = renderer->GetBestSize(*this, *attr, dc, row, col);
7880             extent = column ? size.x : size.y;
7881
7882             if ( span != CellSpan_None )
7883             {
7884                 // we spread the size of a spanning cell over all the cells it
7885                 // covers evenly -- this is probably not ideal but we can't
7886                 // really do much better here
7887                 //
7888                 // notice that numCols and numRows are never 0 as they
7889                 // correspond to the size of the main cell of the span and not
7890                 // of the cell inside it
7891                 extent /= column ? numCols : numRows;
7892             }
7893
7894             if ( extent > extentMax )
7895                 extentMax = extent;
7896
7897             renderer->DecRef();
7898         }
7899
7900         attr->DecRef();
7901     }
7902
7903     // now also compare with the column label extent
7904     wxCoord w, h;
7905     dc.SetFont( GetLabelFont() );
7906
7907     if ( column )
7908     {
7909         dc.GetMultiLineTextExtent( GetColLabelValue(col), &w, &h );
7910         if ( GetColLabelTextOrientation() == wxVERTICAL )
7911             w = h;
7912     }
7913     else
7914         dc.GetMultiLineTextExtent( GetRowLabelValue(row), &w, &h );
7915
7916     extent = column ? w : h;
7917     if ( extent > extentMax )
7918         extentMax = extent;
7919
7920     if ( !extentMax )
7921     {
7922         // empty column - give default extent (notice that if extentMax is less
7923         // than default extent but != 0, it's OK)
7924         extentMax = column ? m_defaultColWidth : m_defaultRowHeight;
7925     }
7926     else
7927     {
7928         if ( column )
7929             // leave some space around text
7930             extentMax += 10;
7931         else
7932             extentMax += 6;
7933     }
7934
7935     if ( column )
7936     {
7937         // Ensure automatic width is not less than minimal width. See the
7938         // comment in SetColSize() for explanation of why this isn't done
7939         // in SetColSize().
7940         if ( !setAsMin )
7941             extentMax = wxMax(extentMax, GetColMinimalWidth(col));
7942
7943         SetColSize( col, extentMax );
7944         if ( !GetBatchCount() )
7945         {
7946             if ( m_useNativeHeader )
7947             {
7948                 GetGridColHeader()->UpdateColumn(col);
7949             }
7950             else
7951             {
7952                 int cw, ch, dummy;
7953                 m_gridWin->GetClientSize( &cw, &ch );
7954                 wxRect rect ( CellToRect( 0, col ) );
7955                 rect.y = 0;
7956                 CalcScrolledPosition(rect.x, 0, &rect.x, &dummy);
7957                 rect.width = cw - rect.x;
7958                 rect.height = m_colLabelHeight;
7959                 GetColLabelWindow()->Refresh( true, &rect );
7960             }
7961         }
7962     }
7963     else
7964     {
7965         // Ensure automatic width is not less than minimal height. See the
7966         // comment in SetColSize() for explanation of why this isn't done
7967         // in SetRowSize().
7968         if ( !setAsMin )
7969             extentMax = wxMax(extentMax, GetRowMinimalHeight(row));
7970
7971         SetRowSize(row, extentMax);
7972         if ( !GetBatchCount() )
7973         {
7974             int cw, ch, dummy;
7975             m_gridWin->GetClientSize( &cw, &ch );
7976             wxRect rect( CellToRect( row, 0 ) );
7977             rect.x = 0;
7978             CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
7979             rect.width = m_rowLabelWidth;
7980             rect.height = ch - rect.y;
7981             m_rowLabelWin->Refresh( true, &rect );
7982         }
7983     }
7984
7985     if ( setAsMin )
7986     {
7987         if ( column )
7988             SetColMinimalWidth(col, extentMax);
7989         else
7990             SetRowMinimalHeight(row, extentMax);
7991     }
7992 }
7993
7994 wxCoord wxGrid::CalcColOrRowLabelAreaMinSize(wxGridDirection direction)
7995 {
7996     // calculate size for the rows or columns?
7997     const bool calcRows = direction == wxGRID_ROW;
7998
7999     wxClientDC dc(calcRows ? GetGridRowLabelWindow()
8000                            : GetGridColLabelWindow());
8001     dc.SetFont(GetLabelFont());
8002
8003     // which dimension should we take into account for calculations?
8004     //
8005     // for columns, the text can be only horizontal so it's easy but for rows
8006     // we also have to take into account the text orientation
8007     const bool
8008         useWidth = calcRows || (GetColLabelTextOrientation() == wxVERTICAL);
8009
8010     wxArrayString lines;
8011     wxCoord extentMax = 0;
8012
8013     const int numRowsOrCols = calcRows ? m_numRows : m_numCols;
8014     for ( int rowOrCol = 0; rowOrCol < numRowsOrCols; rowOrCol++ )
8015     {
8016         lines.Clear();
8017
8018         wxString label = calcRows ? GetRowLabelValue(rowOrCol)
8019                                   : GetColLabelValue(rowOrCol);
8020         StringToLines(label, lines);
8021
8022         long w, h;
8023         GetTextBoxSize(dc, lines, &w, &h);
8024
8025         const wxCoord extent = useWidth ? w : h;
8026         if ( extent > extentMax )
8027             extentMax = extent;
8028     }
8029
8030     if ( !extentMax )
8031     {
8032         // empty column - give default extent (notice that if extentMax is less
8033         // than default extent but != 0, it's OK)
8034         extentMax = calcRows ? GetDefaultRowLabelSize()
8035                              : GetDefaultColLabelSize();
8036     }
8037
8038     // leave some space around text (taken from AutoSizeColOrRow)
8039     if ( calcRows )
8040         extentMax += 10;
8041     else
8042         extentMax += 6;
8043
8044     return extentMax;
8045 }
8046
8047 int wxGrid::SetOrCalcColumnSizes(bool calcOnly, bool setAsMin)
8048 {
8049     int width = m_rowLabelWidth;
8050
8051     wxGridUpdateLocker locker;
8052     if(!calcOnly)
8053         locker.Create(this);
8054
8055     for ( int col = 0; col < m_numCols; col++ )
8056     {
8057         if ( !calcOnly )
8058             AutoSizeColumn(col, setAsMin);
8059
8060         width += GetColWidth(col);
8061     }
8062
8063     return width;
8064 }
8065
8066 int wxGrid::SetOrCalcRowSizes(bool calcOnly, bool setAsMin)
8067 {
8068     int height = m_colLabelHeight;
8069
8070     wxGridUpdateLocker locker;
8071     if(!calcOnly)
8072         locker.Create(this);
8073
8074     for ( int row = 0; row < m_numRows; row++ )
8075     {
8076         if ( !calcOnly )
8077             AutoSizeRow(row, setAsMin);
8078
8079         height += GetRowHeight(row);
8080     }
8081
8082     return height;
8083 }
8084
8085 void wxGrid::AutoSize()
8086 {
8087     wxGridUpdateLocker locker(this);
8088
8089     wxSize size(SetOrCalcColumnSizes(false) - m_rowLabelWidth + m_extraWidth,
8090                 SetOrCalcRowSizes(false) - m_colLabelHeight + m_extraHeight);
8091
8092     // we know that we're not going to have scrollbars so disable them now to
8093     // avoid trouble in SetClientSize() which can otherwise set the correct
8094     // client size but also leave space for (not needed any more) scrollbars
8095     SetScrollbars(m_xScrollPixelsPerLine, m_yScrollPixelsPerLine,
8096                   0, 0, 0, 0, true);
8097
8098     SetClientSize(size.x + m_rowLabelWidth, size.y + m_colLabelHeight);
8099 }
8100
8101 void wxGrid::AutoSizeRowLabelSize( int row )
8102 {
8103     // Hide the edit control, so it
8104     // won't interfere with drag-shrinking.
8105     if ( IsCellEditControlShown() )
8106     {
8107         HideCellEditControl();
8108         SaveEditControlValue();
8109     }
8110
8111     // autosize row height depending on label text
8112     SetRowSize(row, -1);
8113     ForceRefresh();
8114 }
8115
8116 void wxGrid::AutoSizeColLabelSize( int col )
8117 {
8118     // Hide the edit control, so it
8119     // won't interfere with drag-shrinking.
8120     if ( IsCellEditControlShown() )
8121     {
8122         HideCellEditControl();
8123         SaveEditControlValue();
8124     }
8125
8126     // autosize column width depending on label text
8127     SetColSize(col, -1);
8128     ForceRefresh();
8129 }
8130
8131 wxSize wxGrid::DoGetBestSize() const
8132 {
8133     wxGrid * const self = const_cast<wxGrid *>(this);
8134
8135     // we do the same as in AutoSize() here with the exception that we don't
8136     // change the column/row sizes, only calculate them
8137     wxSize size(self->SetOrCalcColumnSizes(true) - m_rowLabelWidth + m_extraWidth,
8138                 self->SetOrCalcRowSizes(true) - m_colLabelHeight + m_extraHeight);
8139
8140     // NOTE: This size should be cached, but first we need to add calls to
8141     // InvalidateBestSize everywhere that could change the results of this
8142     // calculation.
8143     // CacheBestSize(size);
8144
8145     return wxSize(size.x + m_rowLabelWidth, size.y + m_colLabelHeight)
8146             + GetWindowBorderSize();
8147 }
8148
8149 void wxGrid::Fit()
8150 {
8151     AutoSize();
8152 }
8153
8154 #if WXWIN_COMPATIBILITY_2_8
8155 wxPen& wxGrid::GetDividerPen() const
8156 {
8157     return wxNullPen;
8158 }
8159 #endif // WXWIN_COMPATIBILITY_2_8
8160
8161 // ----------------------------------------------------------------------------
8162 // cell value accessor functions
8163 // ----------------------------------------------------------------------------
8164
8165 void wxGrid::SetCellValue( int row, int col, const wxString& s )
8166 {
8167     if ( m_table )
8168     {
8169         m_table->SetValue( row, col, s );
8170         if ( !GetBatchCount() )
8171         {
8172             int dummy;
8173             wxRect rect( CellToRect( row, col ) );
8174             rect.x = 0;
8175             rect.width = m_gridWin->GetClientSize().GetWidth();
8176             CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
8177             m_gridWin->Refresh( false, &rect );
8178         }
8179
8180         if ( m_currentCellCoords.GetRow() == row &&
8181              m_currentCellCoords.GetCol() == col &&
8182              IsCellEditControlShown())
8183              // Note: If we are using IsCellEditControlEnabled,
8184              // this interacts badly with calling SetCellValue from
8185              // an EVT_GRID_CELL_CHANGE handler.
8186         {
8187             HideCellEditControl();
8188             ShowCellEditControl(); // will reread data from table
8189         }
8190     }
8191 }
8192
8193 // ----------------------------------------------------------------------------
8194 // block, row and column selection
8195 // ----------------------------------------------------------------------------
8196
8197 void wxGrid::SelectRow( int row, bool addToSelected )
8198 {
8199     if ( !m_selection )
8200         return;
8201
8202     if ( !addToSelected )
8203         ClearSelection();
8204
8205     m_selection->SelectRow(row);
8206 }
8207
8208 void wxGrid::SelectCol( int col, bool addToSelected )
8209 {
8210     if ( !m_selection )
8211         return;
8212
8213     if ( !addToSelected )
8214         ClearSelection();
8215
8216     m_selection->SelectCol(col);
8217 }
8218
8219 void wxGrid::SelectBlock(int topRow, int leftCol, int bottomRow, int rightCol,
8220                          bool addToSelected)
8221 {
8222     if ( !m_selection )
8223         return;
8224
8225     if ( !addToSelected )
8226         ClearSelection();
8227
8228     m_selection->SelectBlock(topRow, leftCol, bottomRow, rightCol);
8229 }
8230
8231 void wxGrid::SelectAll()
8232 {
8233     if ( m_numRows > 0 && m_numCols > 0 )
8234     {
8235         if ( m_selection )
8236             m_selection->SelectBlock( 0, 0, m_numRows - 1, m_numCols - 1 );
8237     }
8238 }
8239
8240 // ----------------------------------------------------------------------------
8241 // cell, row and col deselection
8242 // ----------------------------------------------------------------------------
8243
8244 void wxGrid::DeselectLine(int line, const wxGridOperations& oper)
8245 {
8246     if ( !m_selection )
8247         return;
8248
8249     const wxGridSelectionModes mode = m_selection->GetSelectionMode();
8250     if ( mode == oper.GetSelectionMode() ||
8251             mode == wxGrid::wxGridSelectRowsOrColumns )
8252     {
8253         const wxGridCellCoords c(oper.MakeCoords(line, 0));
8254         if ( m_selection->IsInSelection(c) )
8255             m_selection->ToggleCellSelection(c);
8256     }
8257     else if ( mode != oper.Dual().GetSelectionMode() )
8258     {
8259         const int nOther = oper.Dual().GetNumberOfLines(this);
8260         for ( int i = 0; i < nOther; i++ )
8261         {
8262             const wxGridCellCoords c(oper.MakeCoords(line, i));
8263             if ( m_selection->IsInSelection(c) )
8264                 m_selection->ToggleCellSelection(c);
8265         }
8266     }
8267     //else: can only select orthogonal lines so no lines in this direction
8268     //      could have been selected anyhow
8269 }
8270
8271 void wxGrid::DeselectRow(int row)
8272 {
8273     DeselectLine(row, wxGridRowOperations());
8274 }
8275
8276 void wxGrid::DeselectCol(int col)
8277 {
8278     DeselectLine(col, wxGridColumnOperations());
8279 }
8280
8281 void wxGrid::DeselectCell( int row, int col )
8282 {
8283     if ( m_selection && m_selection->IsInSelection(row, col) )
8284         m_selection->ToggleCellSelection(row, col);
8285 }
8286
8287 bool wxGrid::IsSelection() const
8288 {
8289     return ( m_selection && (m_selection->IsSelection() ||
8290              ( m_selectedBlockTopLeft != wxGridNoCellCoords &&
8291                m_selectedBlockBottomRight != wxGridNoCellCoords) ) );
8292 }
8293
8294 bool wxGrid::IsInSelection( int row, int col ) const
8295 {
8296     return ( m_selection && (m_selection->IsInSelection( row, col ) ||
8297              ( row >= m_selectedBlockTopLeft.GetRow() &&
8298                col >= m_selectedBlockTopLeft.GetCol() &&
8299                row <= m_selectedBlockBottomRight.GetRow() &&
8300                col <= m_selectedBlockBottomRight.GetCol() )) );
8301 }
8302
8303 wxGridCellCoordsArray wxGrid::GetSelectedCells() const
8304 {
8305     if (!m_selection)
8306     {
8307         wxGridCellCoordsArray a;
8308         return a;
8309     }
8310
8311     return m_selection->m_cellSelection;
8312 }
8313
8314 wxGridCellCoordsArray wxGrid::GetSelectionBlockTopLeft() const
8315 {
8316     if (!m_selection)
8317     {
8318         wxGridCellCoordsArray a;
8319         return a;
8320     }
8321
8322     return m_selection->m_blockSelectionTopLeft;
8323 }
8324
8325 wxGridCellCoordsArray wxGrid::GetSelectionBlockBottomRight() const
8326 {
8327     if (!m_selection)
8328     {
8329         wxGridCellCoordsArray a;
8330         return a;
8331     }
8332
8333     return m_selection->m_blockSelectionBottomRight;
8334 }
8335
8336 wxArrayInt wxGrid::GetSelectedRows() const
8337 {
8338     if (!m_selection)
8339     {
8340         wxArrayInt a;
8341         return a;
8342     }
8343
8344     return m_selection->m_rowSelection;
8345 }
8346
8347 wxArrayInt wxGrid::GetSelectedCols() const
8348 {
8349     if (!m_selection)
8350     {
8351         wxArrayInt a;
8352         return a;
8353     }
8354
8355     return m_selection->m_colSelection;
8356 }
8357
8358 void wxGrid::ClearSelection()
8359 {
8360     wxRect r1 = BlockToDeviceRect(m_selectedBlockTopLeft,
8361                                   m_selectedBlockBottomRight);
8362     wxRect r2 = BlockToDeviceRect(m_currentCellCoords,
8363                                   m_selectedBlockCorner);
8364
8365     m_selectedBlockTopLeft =
8366     m_selectedBlockBottomRight =
8367     m_selectedBlockCorner = wxGridNoCellCoords;
8368
8369     if ( !r1.IsEmpty() )
8370         RefreshRect(r1, false);
8371     if ( !r2.IsEmpty() )
8372         RefreshRect(r2, false);
8373
8374     if ( m_selection )
8375         m_selection->ClearSelection();
8376 }
8377
8378 // This function returns the rectangle that encloses the given block
8379 // in device coords clipped to the client size of the grid window.
8380 //
8381 wxRect wxGrid::BlockToDeviceRect( const wxGridCellCoords& topLeft,
8382                                   const wxGridCellCoords& bottomRight ) const
8383 {
8384     wxRect resultRect;
8385     wxRect tempCellRect = CellToRect(topLeft);
8386     if ( tempCellRect != wxGridNoCellRect )
8387     {
8388         resultRect = tempCellRect;
8389     }
8390     else
8391     {
8392         resultRect = wxRect(0, 0, 0, 0);
8393     }
8394
8395     tempCellRect = CellToRect(bottomRight);
8396     if ( tempCellRect != wxGridNoCellRect )
8397     {
8398         resultRect += tempCellRect;
8399     }
8400     else
8401     {
8402         // If both inputs were "wxGridNoCellRect," then there's nothing to do.
8403         return wxGridNoCellRect;
8404     }
8405
8406     // Ensure that left/right and top/bottom pairs are in order.
8407     int left = resultRect.GetLeft();
8408     int top = resultRect.GetTop();
8409     int right = resultRect.GetRight();
8410     int bottom = resultRect.GetBottom();
8411
8412     int leftCol = topLeft.GetCol();
8413     int topRow = topLeft.GetRow();
8414     int rightCol = bottomRight.GetCol();
8415     int bottomRow = bottomRight.GetRow();
8416
8417     if (left > right)
8418     {
8419         int tmp = left;
8420         left = right;
8421         right = tmp;
8422
8423         tmp = leftCol;
8424         leftCol = rightCol;
8425         rightCol = tmp;
8426     }
8427
8428     if (top > bottom)
8429     {
8430         int tmp = top;
8431         top = bottom;
8432         bottom = tmp;
8433
8434         tmp = topRow;
8435         topRow = bottomRow;
8436         bottomRow = tmp;
8437     }
8438
8439     // The following loop is ONLY necessary to detect and handle merged cells.
8440     int cw, ch;
8441     m_gridWin->GetClientSize( &cw, &ch );
8442
8443     // Get the origin coordinates: notice that they will be negative if the
8444     // grid is scrolled downwards/to the right.
8445     int gridOriginX = 0;
8446     int gridOriginY = 0;
8447     CalcScrolledPosition(gridOriginX, gridOriginY, &gridOriginX, &gridOriginY);
8448
8449     int onScreenLeftmostCol = internalXToCol(-gridOriginX);
8450     int onScreenUppermostRow = internalYToRow(-gridOriginY);
8451
8452     int onScreenRightmostCol = internalXToCol(-gridOriginX + cw);
8453     int onScreenBottommostRow = internalYToRow(-gridOriginY + ch);
8454
8455     // Bound our loop so that we only examine the portion of the selected block
8456     // that is shown on screen. Therefore, we compare the Top-Left block values
8457     // to the Top-Left screen values, and the Bottom-Right block values to the
8458     // Bottom-Right screen values, choosing appropriately.
8459     const int visibleTopRow = wxMax(topRow, onScreenUppermostRow);
8460     const int visibleBottomRow = wxMin(bottomRow, onScreenBottommostRow);
8461     const int visibleLeftCol = wxMax(leftCol, onScreenLeftmostCol);
8462     const int visibleRightCol = wxMin(rightCol, onScreenRightmostCol);
8463
8464     for ( int j = visibleTopRow; j <= visibleBottomRow; j++ )
8465     {
8466         for ( int i = visibleLeftCol; i <= visibleRightCol; i++ )
8467         {
8468             if ( (j == visibleTopRow) || (j == visibleBottomRow) ||
8469                     (i == visibleLeftCol) || (i == visibleRightCol) )
8470             {
8471                 tempCellRect = CellToRect( j, i );
8472
8473                 if (tempCellRect.x < left)
8474                     left = tempCellRect.x;
8475                 if (tempCellRect.y < top)
8476                     top = tempCellRect.y;
8477                 if (tempCellRect.x + tempCellRect.width > right)
8478                     right = tempCellRect.x + tempCellRect.width;
8479                 if (tempCellRect.y + tempCellRect.height > bottom)
8480                     bottom = tempCellRect.y + tempCellRect.height;
8481             }
8482             else
8483             {
8484                 i = visibleRightCol; // jump over inner cells.
8485             }
8486         }
8487     }
8488
8489     // Convert to scrolled coords
8490     CalcScrolledPosition( left, top, &left, &top );
8491     CalcScrolledPosition( right, bottom, &right, &bottom );
8492
8493     if (right < 0 || bottom < 0 || left > cw || top > ch)
8494         return wxRect(0,0,0,0);
8495
8496     resultRect.SetLeft( wxMax(0, left) );
8497     resultRect.SetTop( wxMax(0, top) );
8498     resultRect.SetRight( wxMin(cw, right) );
8499     resultRect.SetBottom( wxMin(ch, bottom) );
8500
8501     return resultRect;
8502 }
8503
8504 void wxGrid::DoSetSizes(const wxGridSizesInfo& sizeInfo,
8505                         const wxGridOperations& oper)
8506 {
8507     BeginBatch();
8508     oper.SetDefaultLineSize(this, sizeInfo.m_sizeDefault, true);
8509     const int numLines = oper.GetNumberOfLines(this);
8510     for ( int i = 0; i < numLines; i++ )
8511     {
8512         int size = sizeInfo.GetSize(i);
8513         if ( size != sizeInfo.m_sizeDefault)
8514             oper.SetLineSize(this, i, size);
8515     }
8516     EndBatch();
8517 }
8518
8519 void wxGrid::SetColSizes(const wxGridSizesInfo& sizeInfo)
8520 {
8521     DoSetSizes(sizeInfo, wxGridColumnOperations());
8522 }
8523
8524 void wxGrid::SetRowSizes(const wxGridSizesInfo& sizeInfo)
8525 {
8526     DoSetSizes(sizeInfo, wxGridRowOperations());
8527 }
8528
8529 wxGridSizesInfo::wxGridSizesInfo(int defSize, const wxArrayInt& allSizes)
8530 {
8531     m_sizeDefault = defSize;
8532     for ( size_t i = 0; i < allSizes.size(); i++ )
8533     {
8534         if ( allSizes[i] != defSize )
8535             m_customSizes[i] = allSizes[i];
8536     }
8537 }
8538
8539 int wxGridSizesInfo::GetSize(unsigned pos) const
8540 {
8541     wxUnsignedToIntHashMap::const_iterator it = m_customSizes.find(pos);
8542
8543     return it == m_customSizes.end() ? m_sizeDefault : it->second;
8544 }
8545
8546 // ----------------------------------------------------------------------------
8547 // drop target
8548 // ----------------------------------------------------------------------------
8549
8550 #if wxUSE_DRAG_AND_DROP
8551
8552 // this allow setting drop target directly on wxGrid
8553 void wxGrid::SetDropTarget(wxDropTarget *dropTarget)
8554 {
8555     GetGridWindow()->SetDropTarget(dropTarget);
8556 }
8557
8558 #endif // wxUSE_DRAG_AND_DROP
8559
8560 // ----------------------------------------------------------------------------
8561 // grid event classes
8562 // ----------------------------------------------------------------------------
8563
8564 IMPLEMENT_DYNAMIC_CLASS( wxGridEvent, wxNotifyEvent )
8565
8566 wxGridEvent::wxGridEvent( int id, wxEventType type, wxObject* obj,
8567                           int row, int col, int x, int y, bool sel,
8568                           bool control, bool shift, bool alt, bool meta )
8569         : wxNotifyEvent( type, id ),
8570           wxKeyboardState(control, shift, alt, meta)
8571 {
8572     Init(row, col, x, y, sel);
8573
8574     SetEventObject(obj);
8575 }
8576
8577 IMPLEMENT_DYNAMIC_CLASS( wxGridSizeEvent, wxNotifyEvent )
8578
8579 wxGridSizeEvent::wxGridSizeEvent( int id, wxEventType type, wxObject* obj,
8580                                   int rowOrCol, int x, int y,
8581                                   bool control, bool shift, bool alt, bool meta )
8582         : wxNotifyEvent( type, id ),
8583           wxKeyboardState(control, shift, alt, meta)
8584 {
8585     Init(rowOrCol, x, y);
8586
8587     SetEventObject(obj);
8588 }
8589
8590
8591 IMPLEMENT_DYNAMIC_CLASS( wxGridRangeSelectEvent, wxNotifyEvent )
8592
8593 wxGridRangeSelectEvent::wxGridRangeSelectEvent(int id, wxEventType type, wxObject* obj,
8594                                                const wxGridCellCoords& topLeft,
8595                                                const wxGridCellCoords& bottomRight,
8596                                                bool sel, bool control,
8597                                                bool shift, bool alt, bool meta )
8598         : wxNotifyEvent( type, id ),
8599           wxKeyboardState(control, shift, alt, meta)
8600 {
8601     Init(topLeft, bottomRight, sel);
8602
8603     SetEventObject(obj);
8604 }
8605
8606
8607 IMPLEMENT_DYNAMIC_CLASS(wxGridEditorCreatedEvent, wxCommandEvent)
8608
8609 wxGridEditorCreatedEvent::wxGridEditorCreatedEvent(int id, wxEventType type,
8610                                                    wxObject* obj, int row,
8611                                                    int col, wxControl* ctrl)
8612     : wxCommandEvent(type, id)
8613 {
8614     SetEventObject(obj);
8615     m_row = row;
8616     m_col = col;
8617     m_ctrl = ctrl;
8618 }
8619
8620
8621 // ----------------------------------------------------------------------------
8622 // wxGridTypeRegistry
8623 // ----------------------------------------------------------------------------
8624
8625 wxGridTypeRegistry::~wxGridTypeRegistry()
8626 {
8627     size_t count = m_typeinfo.GetCount();
8628     for ( size_t i = 0; i < count; i++ )
8629         delete m_typeinfo[i];
8630 }
8631
8632 void wxGridTypeRegistry::RegisterDataType(const wxString& typeName,
8633                                           wxGridCellRenderer* renderer,
8634                                           wxGridCellEditor* editor)
8635 {
8636     wxGridDataTypeInfo* info = new wxGridDataTypeInfo(typeName, renderer, editor);
8637
8638     // is it already registered?
8639     int loc = FindRegisteredDataType(typeName);
8640     if ( loc != wxNOT_FOUND )
8641     {
8642         delete m_typeinfo[loc];
8643         m_typeinfo[loc] = info;
8644     }
8645     else
8646     {
8647         m_typeinfo.Add(info);
8648     }
8649 }
8650
8651 int wxGridTypeRegistry::FindRegisteredDataType(const wxString& typeName)
8652 {
8653     size_t count = m_typeinfo.GetCount();
8654     for ( size_t i = 0; i < count; i++ )
8655     {
8656         if ( typeName == m_typeinfo[i]->m_typeName )
8657         {
8658             return i;
8659         }
8660     }
8661
8662     return wxNOT_FOUND;
8663 }
8664
8665 int wxGridTypeRegistry::FindDataType(const wxString& typeName)
8666 {
8667     int index = FindRegisteredDataType(typeName);
8668     if ( index == wxNOT_FOUND )
8669     {
8670         // check whether this is one of the standard ones, in which case
8671         // register it "on the fly"
8672 #if wxUSE_TEXTCTRL
8673         if ( typeName == wxGRID_VALUE_STRING )
8674         {
8675             RegisterDataType(wxGRID_VALUE_STRING,
8676                              new wxGridCellStringRenderer,
8677                              new wxGridCellTextEditor);
8678         }
8679         else
8680 #endif // wxUSE_TEXTCTRL
8681 #if wxUSE_CHECKBOX
8682         if ( typeName == wxGRID_VALUE_BOOL )
8683         {
8684             RegisterDataType(wxGRID_VALUE_BOOL,
8685                              new wxGridCellBoolRenderer,
8686                              new wxGridCellBoolEditor);
8687         }
8688         else
8689 #endif // wxUSE_CHECKBOX
8690 #if wxUSE_TEXTCTRL
8691         if ( typeName == wxGRID_VALUE_NUMBER )
8692         {
8693             RegisterDataType(wxGRID_VALUE_NUMBER,
8694                              new wxGridCellNumberRenderer,
8695                              new wxGridCellNumberEditor);
8696         }
8697         else if ( typeName == wxGRID_VALUE_FLOAT )
8698         {
8699             RegisterDataType(wxGRID_VALUE_FLOAT,
8700                              new wxGridCellFloatRenderer,
8701                              new wxGridCellFloatEditor);
8702         }
8703         else
8704 #endif // wxUSE_TEXTCTRL
8705 #if wxUSE_COMBOBOX
8706         if ( typeName == wxGRID_VALUE_CHOICE )
8707         {
8708             RegisterDataType(wxGRID_VALUE_CHOICE,
8709                              new wxGridCellStringRenderer,
8710                              new wxGridCellChoiceEditor);
8711         }
8712         else
8713 #endif // wxUSE_COMBOBOX
8714         {
8715             return wxNOT_FOUND;
8716         }
8717
8718         // we get here only if just added the entry for this type, so return
8719         // the last index
8720         index = m_typeinfo.GetCount() - 1;
8721     }
8722
8723     return index;
8724 }
8725
8726 int wxGridTypeRegistry::FindOrCloneDataType(const wxString& typeName)
8727 {
8728     int index = FindDataType(typeName);
8729     if ( index == wxNOT_FOUND )
8730     {
8731         // the first part of the typename is the "real" type, anything after ':'
8732         // are the parameters for the renderer
8733         index = FindDataType(typeName.BeforeFirst(wxT(':')));
8734         if ( index == wxNOT_FOUND )
8735         {
8736             return wxNOT_FOUND;
8737         }
8738
8739         wxGridCellRenderer *renderer = GetRenderer(index);
8740         wxGridCellRenderer *rendererOld = renderer;
8741         renderer = renderer->Clone();
8742         rendererOld->DecRef();
8743
8744         wxGridCellEditor *editor = GetEditor(index);
8745         wxGridCellEditor *editorOld = editor;
8746         editor = editor->Clone();
8747         editorOld->DecRef();
8748
8749         // do it even if there are no parameters to reset them to defaults
8750         wxString params = typeName.AfterFirst(wxT(':'));
8751         renderer->SetParameters(params);
8752         editor->SetParameters(params);
8753
8754         // register the new typename
8755         RegisterDataType(typeName, renderer, editor);
8756
8757         // we just registered it, it's the last one
8758         index = m_typeinfo.GetCount() - 1;
8759     }
8760
8761     return index;
8762 }
8763
8764 wxGridCellRenderer* wxGridTypeRegistry::GetRenderer(int index)
8765 {
8766     wxGridCellRenderer* renderer = m_typeinfo[index]->m_renderer;
8767     if (renderer)
8768         renderer->IncRef();
8769
8770     return renderer;
8771 }
8772
8773 wxGridCellEditor* wxGridTypeRegistry::GetEditor(int index)
8774 {
8775     wxGridCellEditor* editor = m_typeinfo[index]->m_editor;
8776     if (editor)
8777         editor->IncRef();
8778
8779     return editor;
8780 }
8781
8782 #endif // wxUSE_GRID