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(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 // implementation
 161 // ============================================================================
 162
 163 IMPLEMENT_ABSTRACT_CLASS(wxGridCellEditorEvtHandler, wxEvtHandler)
 164
 165 BEGIN_EVENT_TABLE( wxGridCellEditorEvtHandler, wxEvtHandler )
 166     EVT_KILL_FOCUS( wxGridCellEditorEvtHandler::OnKillFocus )
 167     EVT_KEY_DOWN( wxGridCellEditorEvtHandler::OnKeyDown )
 168     EVT_CHAR( wxGridCellEditorEvtHandler::OnChar )
 169 END_EVENT_TABLE()
 170
 171 BEGIN_EVENT_TABLE(wxGridHeaderCtrl, wxHeaderCtrl)
 172     EVT_HEADER_CLICK(wxID_ANY, wxGridHeaderCtrl::OnClick)
 173
 174     EVT_HEADER_BEGIN_RESIZE(wxID_ANY, wxGridHeaderCtrl::OnBeginResize)
 175     EVT_HEADER_RESIZING(wxID_ANY, wxGridHeaderCtrl::OnResizing)
 176     EVT_HEADER_END_RESIZE(wxID_ANY, wxGridHeaderCtrl::OnEndResize)
 177
 178     EVT_HEADER_BEGIN_REORDER(wxID_ANY, wxGridHeaderCtrl::OnBeginReorder)
 179     EVT_HEADER_END_REORDER(wxID_ANY, wxGridHeaderCtrl::OnEndReorder)
 180 END_EVENT_TABLE()
 181
 182 wxGridOperations& wxGridRowOperations::Dual() const
 183 {
 184     static wxGridColumnOperations s_colOper;
 185
 186     return s_colOper;
 187 }
 188
 189 wxGridOperations& wxGridColumnOperations::Dual() const
 190 {
 191     static wxGridRowOperations s_rowOper;
 192
 193     return s_rowOper;
 194 }
 195
 196 // ----------------------------------------------------------------------------
 197 // wxGridCellWorker is an (almost) empty common base class for
 198 // wxGridCellRenderer and wxGridCellEditor managing ref counting
 199 // ----------------------------------------------------------------------------
 200
 201 void wxGridCellWorker::SetParameters(const wxString& WXUNUSED(params))
 202 {
 203     // nothing to do
 204 }
 205
 206 wxGridCellWorker::~wxGridCellWorker()
 207 {
 208 }
 209
 210 // ----------------------------------------------------------------------------
 211 // wxGridHeaderLabelsRenderer and related classes
 212 // ----------------------------------------------------------------------------
 213
 214 void wxGridHeaderLabelsRenderer::DrawLabel(const wxGrid& grid,
 215                                            wxDC& dc,
 216                                            const wxString& value,
 217                                            const wxRect& rect,
 218                                            int horizAlign,
 219                                            int vertAlign,
 220                                            int textOrientation) const
 221 {
 222     dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 223     dc.SetTextForeground(grid.GetLabelTextColour());
 224     dc.SetFont(grid.GetLabelFont());
 225     grid.DrawTextRectangle(dc, value, rect, horizAlign, vertAlign, textOrientation);
 226 }
 227
 228
 229 void wxGridRowHeaderRendererDefault::DrawBorder(const wxGrid& WXUNUSED(grid),
 230                                                 wxDC& dc,
 231                                                 wxRect& rect) const
 232 {
 233     dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)));
 234     dc.DrawLine(rect.GetRight(), rect.GetTop(),
 235                 rect.GetRight(), rect.GetBottom());
 236     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 237                 rect.GetLeft(), rect.GetBottom());
 238     dc.DrawLine(rect.GetLeft(), rect.GetBottom(),
 239                 rect.GetRight() + 1, rect.GetBottom());
 240
 241     dc.SetPen(*wxWHITE_PEN);
 242     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop(),
 243                 rect.GetLeft() + 1, rect.GetBottom());
 244     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop(),
 245                 rect.GetRight(), rect.GetTop());
 246
 247     rect.Deflate(2);
 248 }
 249
 250 void wxGridColumnHeaderRendererDefault::DrawBorder(const wxGrid& WXUNUSED(grid),
 251                                                    wxDC& dc,
 252                                                    wxRect& rect) const
 253 {
 254     dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)));
 255     dc.DrawLine(rect.GetRight(), rect.GetTop(),
 256                 rect.GetRight(), rect.GetBottom());
 257     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 258                 rect.GetRight(), rect.GetTop());
 259     dc.DrawLine(rect.GetLeft(), rect.GetBottom(),
 260                 rect.GetRight() + 1, rect.GetBottom());
 261
 262     dc.SetPen(*wxWHITE_PEN);
 263     dc.DrawLine(rect.GetLeft(), rect.GetTop() + 1,
 264                 rect.GetLeft(), rect.GetBottom());
 265     dc.DrawLine(rect.GetLeft(), rect.GetTop() + 1,
 266                 rect.GetRight(), rect.GetTop() + 1);
 267
 268     rect.Deflate(2);
 269 }
 270
 271 void wxGridCornerHeaderRendererDefault::DrawBorder(const wxGrid& WXUNUSED(grid),
 272                                                    wxDC& dc,
 273                                                    wxRect& rect) const
 274 {
 275     dc.SetPen(wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)));
 276     dc.DrawLine(rect.GetRight() - 1, rect.GetBottom() - 1,
 277                 rect.GetRight() - 1, rect.GetTop());
 278     dc.DrawLine(rect.GetRight() - 1, rect.GetBottom() - 1,
 279                 rect.GetLeft(), rect.GetBottom() - 1);
 280     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 281                 rect.GetRight(), rect.GetTop());
 282     dc.DrawLine(rect.GetLeft(), rect.GetTop(),
 283                 rect.GetLeft(), rect.GetBottom());
 284
 285     dc.SetPen(*wxWHITE_PEN);
 286     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop() + 1,
 287                 rect.GetRight() - 1, rect.GetTop() + 1);
 288     dc.DrawLine(rect.GetLeft() + 1, rect.GetTop() + 1,
 289                 rect.GetLeft() + 1, rect.GetBottom() - 1);
 290
 291     rect.Deflate(2);
 292 }
 293
 294 // ----------------------------------------------------------------------------
 295 // wxGridCellAttr
 296 // ----------------------------------------------------------------------------
 297
 298 void wxGridCellAttr::Init(wxGridCellAttr *attrDefault)
 299 {
 300     m_isReadOnly = Unset;
 301
 302     m_renderer = NULL;
 303     m_editor = NULL;
 304
 305     m_attrkind = wxGridCellAttr::Cell;
 306
 307     m_sizeRows = m_sizeCols = 1;
 308     m_overflow = UnsetOverflow;
 309
 310     SetDefAttr(attrDefault);
 311 }
 312
 313 wxGridCellAttr *wxGridCellAttr::Clone() const
 314 {
 315     wxGridCellAttr *attr = new wxGridCellAttr(m_defGridAttr);
 316
 317     if ( HasTextColour() )
 318         attr->SetTextColour(GetTextColour());
 319     if ( HasBackgroundColour() )
 320         attr->SetBackgroundColour(GetBackgroundColour());
 321     if ( HasFont() )
 322         attr->SetFont(GetFont());
 323     if ( HasAlignment() )
 324         attr->SetAlignment(m_hAlign, m_vAlign);
 325
 326     attr->SetSize( m_sizeRows, m_sizeCols );
 327
 328     if ( m_renderer )
 329     {
 330         attr->SetRenderer(m_renderer);
 331         m_renderer->IncRef();
 332     }
 333     if ( m_editor )
 334     {
 335         attr->SetEditor(m_editor);
 336         m_editor->IncRef();
 337     }
 338
 339     if ( IsReadOnly() )
 340         attr->SetReadOnly();
 341
 342     attr->SetOverflow( m_overflow == Overflow );
 343     attr->SetKind( m_attrkind );
 344
 345     return attr;
 346 }
 347
 348 void wxGridCellAttr::MergeWith(wxGridCellAttr *mergefrom)
 349 {
 350     if ( !HasTextColour() && mergefrom->HasTextColour() )
 351         SetTextColour(mergefrom->GetTextColour());
 352     if ( !HasBackgroundColour() && mergefrom->HasBackgroundColour() )
 353         SetBackgroundColour(mergefrom->GetBackgroundColour());
 354     if ( !HasFont() && mergefrom->HasFont() )
 355         SetFont(mergefrom->GetFont());
 356     if ( !HasAlignment() && mergefrom->HasAlignment() )
 357     {
 358         int hAlign, vAlign;
 359         mergefrom->GetAlignment( &hAlign, &vAlign);
 360         SetAlignment(hAlign, vAlign);
 361     }
 362     if ( !HasSize() && mergefrom->HasSize() )
 363         mergefrom->GetSize( &m_sizeRows, &m_sizeCols );
 364
 365     // Directly access member functions as GetRender/Editor don't just return
 366     // m_renderer/m_editor
 367     //
 368     // Maybe add support for merge of Render and Editor?
 369     if (!HasRenderer() && mergefrom->HasRenderer() )
 370     {
 371         m_renderer = mergefrom->m_renderer;
 372         m_renderer->IncRef();
 373     }
 374     if ( !HasEditor() && mergefrom->HasEditor() )
 375     {
 376         m_editor =  mergefrom->m_editor;
 377         m_editor->IncRef();
 378     }
 379     if ( !HasReadWriteMode() && mergefrom->HasReadWriteMode() )
 380         SetReadOnly(mergefrom->IsReadOnly());
 381
 382     if (!HasOverflowMode() && mergefrom->HasOverflowMode() )
 383         SetOverflow(mergefrom->GetOverflow());
 384
 385     SetDefAttr(mergefrom->m_defGridAttr);
 386 }
 387
 388 void wxGridCellAttr::SetSize(int num_rows, int num_cols)
 389 {
 390     // The size of a cell is normally 1,1
 391
 392     // If this cell is larger (2,2) then this is the top left cell
 393     // the other cells that will be covered (lower right cells) must be
 394     // set to negative or zero values such that
 395     // row + num_rows of the covered cell points to the larger cell (this cell)
 396     // same goes for the col + num_cols.
 397
 398     // Size of 0,0 is NOT valid, neither is <=0 and any positive value
 399
 400     wxASSERT_MSG( (!((num_rows > 0) && (num_cols <= 0)) ||
 401                   !((num_rows <= 0) && (num_cols > 0)) ||
 402                   !((num_rows == 0) && (num_cols == 0))),
 403                   wxT("wxGridCellAttr::SetSize only takes two postive values or negative/zero values"));
 404
 405     m_sizeRows = num_rows;
 406     m_sizeCols = num_cols;
 407 }
 408
 409 const wxColour& wxGridCellAttr::GetTextColour() const
 410 {
 411     if (HasTextColour())
 412     {
 413         return m_colText;
 414     }
 415     else if (m_defGridAttr && m_defGridAttr != this)
 416     {
 417         return m_defGridAttr->GetTextColour();
 418     }
 419     else
 420     {
 421         wxFAIL_MSG(wxT("Missing default cell attribute"));
 422         return wxNullColour;
 423     }
 424 }
 425
 426 const wxColour& wxGridCellAttr::GetBackgroundColour() const
 427 {
 428     if (HasBackgroundColour())
 429     {
 430         return m_colBack;
 431     }
 432     else if (m_defGridAttr && m_defGridAttr != this)
 433     {
 434         return m_defGridAttr->GetBackgroundColour();
 435     }
 436     else
 437     {
 438         wxFAIL_MSG(wxT("Missing default cell attribute"));
 439         return wxNullColour;
 440     }
 441 }
 442
 443 const wxFont& wxGridCellAttr::GetFont() const
 444 {
 445     if (HasFont())
 446     {
 447         return m_font;
 448     }
 449     else if (m_defGridAttr && m_defGridAttr != this)
 450     {
 451         return m_defGridAttr->GetFont();
 452     }
 453     else
 454     {
 455         wxFAIL_MSG(wxT("Missing default cell attribute"));
 456         return wxNullFont;
 457     }
 458 }
 459
 460 void wxGridCellAttr::GetAlignment(int *hAlign, int *vAlign) const
 461 {
 462     if (HasAlignment())
 463     {
 464         if ( hAlign )
 465             *hAlign = m_hAlign;
 466         if ( vAlign )
 467             *vAlign = m_vAlign;
 468     }
 469     else if (m_defGridAttr && m_defGridAttr != this)
 470     {
 471         m_defGridAttr->GetAlignment(hAlign, vAlign);
 472     }
 473     else
 474     {
 475         wxFAIL_MSG(wxT("Missing default cell attribute"));
 476     }
 477 }
 478
 479 void wxGridCellAttr::GetNonDefaultAlignment(int *hAlign, int *vAlign) const
 480 {
 481     if ( hAlign && m_hAlign != wxALIGN_INVALID )
 482         *hAlign = m_hAlign;
 483
 484     if ( vAlign && m_vAlign != wxALIGN_INVALID )
 485         *vAlign = m_vAlign;
 486 }
 487
 488 void wxGridCellAttr::GetSize( int *num_rows, int *num_cols ) const
 489 {
 490     if ( num_rows )
 491         *num_rows = m_sizeRows;
 492     if ( num_cols )
 493         *num_cols = m_sizeCols;
 494 }
 495
 496 // GetRenderer and GetEditor use a slightly different decision path about
 497 // which attribute to use.  If a non-default attr object has one then it is
 498 // used, otherwise the default editor or renderer is fetched from the grid and
 499 // used.  It should be the default for the data type of the cell.  If it is
 500 // NULL (because the table has a type that the grid does not have in its
 501 // registry), then the grid's default editor or renderer is used.
 502
 503 wxGridCellRenderer* wxGridCellAttr::GetRenderer(const wxGrid* grid, int row, int col) const
 504 {
 505     wxGridCellRenderer *renderer = NULL;
 506
 507     if ( m_renderer && this != m_defGridAttr )
 508     {
 509         // use the cells renderer if it has one
 510         renderer = m_renderer;
 511         renderer->IncRef();
 512     }
 513     else // no non-default cell renderer
 514     {
 515         // get default renderer for the data type
 516         if ( grid )
 517         {
 518             // GetDefaultRendererForCell() will do IncRef() for us
 519             renderer = grid->GetDefaultRendererForCell(row, col);
 520         }
 521
 522         if ( renderer == NULL )
 523         {
 524             if ( (m_defGridAttr != NULL) && (m_defGridAttr != this) )
 525             {
 526                 // if we still don't have one then use the grid default
 527                 // (no need for IncRef() here neither)
 528                 renderer = m_defGridAttr->GetRenderer(NULL, 0, 0);
 529             }
 530             else // default grid attr
 531             {
 532                 // use m_renderer which we had decided not to use initially
 533                 renderer = m_renderer;
 534                 if ( renderer )
 535                     renderer->IncRef();
 536             }
 537         }
 538     }
 539
 540     // we're supposed to always find something
 541     wxASSERT_MSG(renderer, wxT("Missing default cell renderer"));
 542
 543     return renderer;
 544 }
 545
 546 // same as above, except for s/renderer/editor/g
 547 wxGridCellEditor* wxGridCellAttr::GetEditor(const wxGrid* grid, int row, int col) const
 548 {
 549     wxGridCellEditor *editor = NULL;
 550
 551     if ( m_editor && this != m_defGridAttr )
 552     {
 553         // use the cells editor if it has one
 554         editor = m_editor;
 555         editor->IncRef();
 556     }
 557     else // no non default cell editor
 558     {
 559         // get default editor for the data type
 560         if ( grid )
 561         {
 562             // GetDefaultEditorForCell() will do IncRef() for us
 563             editor = grid->GetDefaultEditorForCell(row, col);
 564         }
 565
 566         if ( editor == NULL )
 567         {
 568             if ( (m_defGridAttr != NULL) && (m_defGridAttr != this) )
 569             {
 570                 // if we still don't have one then use the grid default
 571                 // (no need for IncRef() here neither)
 572                 editor = m_defGridAttr->GetEditor(NULL, 0, 0);
 573             }
 574             else // default grid attr
 575             {
 576                 // use m_editor which we had decided not to use initially
 577                 editor = m_editor;
 578                 if ( editor )
 579                     editor->IncRef();
 580             }
 581         }
 582     }
 583
 584     // we're supposed to always find something
 585     wxASSERT_MSG(editor, wxT("Missing default cell editor"));
 586
 587     return editor;
 588 }
 589
 590 // ----------------------------------------------------------------------------
 591 // wxGridCellAttrData
 592 // ----------------------------------------------------------------------------
 593
 594 void wxGridCellAttrData::SetAttr(wxGridCellAttr *attr, int row, int col)
 595 {
 596     // Note: contrary to wxGridRowOrColAttrData::SetAttr, we must not
 597     //       touch attribute's reference counting explicitly, since this
 598     //       is managed by class wxGridCellWithAttr
 599     int n = FindIndex(row, col);
 600     if ( n == wxNOT_FOUND )
 601     {
 602         if ( attr )
 603         {
 604             // add the attribute
 605             m_attrs.Add(new wxGridCellWithAttr(row, col, attr));
 606         }
 607         //else: nothing to do
 608     }
 609     else // we already have an attribute for this cell
 610     {
 611         if ( attr )
 612         {
 613             // change the attribute
 614             m_attrs[(size_t)n].ChangeAttr(attr);
 615         }
 616         else
 617         {
 618             // remove this attribute
 619             m_attrs.RemoveAt((size_t)n);
 620         }
 621     }
 622 }
 623
 624 wxGridCellAttr *wxGridCellAttrData::GetAttr(int row, int col) const
 625 {
 626     wxGridCellAttr *attr = NULL;
 627
 628     int n = FindIndex(row, col);
 629     if ( n != wxNOT_FOUND )
 630     {
 631         attr = m_attrs[(size_t)n].attr;
 632         attr->IncRef();
 633     }
 634
 635     return attr;
 636 }
 637
 638 void wxGridCellAttrData::UpdateAttrRows( size_t pos, int numRows )
 639 {
 640     size_t count = m_attrs.GetCount();
 641     for ( size_t n = 0; n < count; n++ )
 642     {
 643         wxGridCellCoords& coords = m_attrs[n].coords;
 644         wxCoord row = coords.GetRow();
 645         if ((size_t)row >= pos)
 646         {
 647             if (numRows > 0)
 648             {
 649                 // If rows inserted, include row counter where necessary
 650                 coords.SetRow(row + numRows);
 651             }
 652             else if (numRows < 0)
 653             {
 654                 // If rows deleted ...
 655                 if ((size_t)row >= pos - numRows)
 656                 {
 657                     // ...either decrement row counter (if row still exists)...
 658                     coords.SetRow(row + numRows);
 659                 }
 660                 else
 661                 {
 662                     // ...or remove the attribute
 663                     m_attrs.RemoveAt(n);
 664                     n--;
 665                     count--;
 666                 }
 667             }
 668         }
 669     }
 670 }
 671
 672 void wxGridCellAttrData::UpdateAttrCols( size_t pos, int numCols )
 673 {
 674     size_t count = m_attrs.GetCount();
 675     for ( size_t n = 0; n < count; n++ )
 676     {
 677         wxGridCellCoords& coords = m_attrs[n].coords;
 678         wxCoord col = coords.GetCol();
 679         if ( (size_t)col >= pos )
 680         {
 681             if ( numCols > 0 )
 682             {
 683                 // If rows inserted, include row counter where necessary
 684                 coords.SetCol(col + numCols);
 685             }
 686             else if (numCols < 0)
 687             {
 688                 // If rows deleted ...
 689                 if ((size_t)col >= pos - numCols)
 690                 {
 691                     // ...either decrement row counter (if row still exists)...
 692                     coords.SetCol(col + numCols);
 693                 }
 694                 else
 695                 {
 696                     // ...or remove the attribute
 697                     m_attrs.RemoveAt(n);
 698                     n--;
 699                     count--;
 700                 }
 701             }
 702         }
 703     }
 704 }
 705
 706 int wxGridCellAttrData::FindIndex(int row, int col) const
 707 {
 708     size_t count = m_attrs.GetCount();
 709     for ( size_t n = 0; n < count; n++ )
 710     {
 711         const wxGridCellCoords& coords = m_attrs[n].coords;
 712         if ( (coords.GetRow() == row) && (coords.GetCol() == col) )
 713         {
 714             return n;
 715         }
 716     }
 717
 718     return wxNOT_FOUND;
 719 }
 720
 721 // ----------------------------------------------------------------------------
 722 // wxGridRowOrColAttrData
 723 // ----------------------------------------------------------------------------
 724
 725 wxGridRowOrColAttrData::~wxGridRowOrColAttrData()
 726 {
 727     size_t count = m_attrs.GetCount();
 728     for ( size_t n = 0; n < count; n++ )
 729     {
 730         m_attrs[n]->DecRef();
 731     }
 732 }
 733
 734 wxGridCellAttr *wxGridRowOrColAttrData::GetAttr(int rowOrCol) const
 735 {
 736     wxGridCellAttr *attr = NULL;
 737
 738     int n = m_rowsOrCols.Index(rowOrCol);
 739     if ( n != wxNOT_FOUND )
 740     {
 741         attr = m_attrs[(size_t)n];
 742         attr->IncRef();
 743     }
 744
 745     return attr;
 746 }
 747
 748 void wxGridRowOrColAttrData::SetAttr(wxGridCellAttr *attr, int rowOrCol)
 749 {
 750     int i = m_rowsOrCols.Index(rowOrCol);
 751     if ( i == wxNOT_FOUND )
 752     {
 753         if ( attr )
 754         {
 755             // store the new attribute, taking its ownership
 756             m_rowsOrCols.Add(rowOrCol);
 757             m_attrs.Add(attr);
 758         }
 759         // nothing to remove
 760     }
 761     else // we have an attribute for this row or column
 762     {
 763         size_t n = (size_t)i;
 764
 765         // notice that this code works correctly even when the old attribute is
 766         // the same as the new one: as we own of it, we must call DecRef() on
 767         // it in any case and this won't result in destruction of the new
 768         // attribute if it's the same as old one because it must have ref count
 769         // of at least 2 to be passed to us while we keep a reference to it too
 770         m_attrs[n]->DecRef();
 771
 772         if ( attr )
 773         {
 774             // replace the attribute with the new one
 775             m_attrs[n] = attr;
 776         }
 777         else // remove the attribute
 778         {
 779             m_rowsOrCols.RemoveAt(n);
 780             m_attrs.RemoveAt(n);
 781         }
 782     }
 783 }
 784
 785 void wxGridRowOrColAttrData::UpdateAttrRowsOrCols( size_t pos, int numRowsOrCols )
 786 {
 787     size_t count = m_attrs.GetCount();
 788     for ( size_t n = 0; n < count; n++ )
 789     {
 790         int & rowOrCol = m_rowsOrCols[n];
 791         if ( (size_t)rowOrCol >= pos )
 792         {
 793             if ( numRowsOrCols > 0 )
 794             {
 795                 // If rows inserted, include row counter where necessary
 796                 rowOrCol += numRowsOrCols;
 797             }
 798             else if ( numRowsOrCols < 0)
 799             {
 800                 // If rows deleted, either decrement row counter (if row still exists)
 801                 if ((size_t)rowOrCol >= pos - numRowsOrCols)
 802                     rowOrCol += numRowsOrCols;
 803                 else
 804                 {
 805                     m_rowsOrCols.RemoveAt(n);
 806                     m_attrs[n]->DecRef();
 807                     m_attrs.RemoveAt(n);
 808                     n--;
 809                     count--;
 810                 }
 811             }
 812         }
 813     }
 814 }
 815
 816 // ----------------------------------------------------------------------------
 817 // wxGridCellAttrProvider
 818 // ----------------------------------------------------------------------------
 819
 820 wxGridCellAttrProvider::wxGridCellAttrProvider()
 821 {
 822     m_data = NULL;
 823 }
 824
 825 wxGridCellAttrProvider::~wxGridCellAttrProvider()
 826 {
 827     delete m_data;
 828 }
 829
 830 void wxGridCellAttrProvider::InitData()
 831 {
 832     m_data = new wxGridCellAttrProviderData;
 833 }
 834
 835 wxGridCellAttr *wxGridCellAttrProvider::GetAttr(int row, int col,
 836                                                 wxGridCellAttr::wxAttrKind  kind ) const
 837 {
 838     wxGridCellAttr *attr = NULL;
 839     if ( m_data )
 840     {
 841         switch (kind)
 842         {
 843             case (wxGridCellAttr::Any):
 844                 // Get cached merge attributes.
 845                 // Currently not used as no cache implemented as not mutable
 846                 // attr = m_data->m_mergeAttr.GetAttr(row, col);
 847                 if (!attr)
 848                 {
 849                     // Basically implement old version.
 850                     // Also check merge cache, so we don't have to re-merge every time..
 851                     wxGridCellAttr *attrcell = m_data->m_cellAttrs.GetAttr(row, col);
 852                     wxGridCellAttr *attrrow = m_data->m_rowAttrs.GetAttr(row);
 853                     wxGridCellAttr *attrcol = m_data->m_colAttrs.GetAttr(col);
 854
 855                     if ((attrcell != attrrow) && (attrrow != attrcol) && (attrcell != attrcol))
 856                     {
 857                         // Two or more are non NULL
 858                         attr = new wxGridCellAttr;
 859                         attr->SetKind(wxGridCellAttr::Merged);
 860
 861                         // Order is important..
 862                         if (attrcell)
 863                         {
 864                             attr->MergeWith(attrcell);
 865                             attrcell->DecRef();
 866                         }
 867                         if (attrcol)
 868                         {
 869                             attr->MergeWith(attrcol);
 870                             attrcol->DecRef();
 871                         }
 872                         if (attrrow)
 873                         {
 874                             attr->MergeWith(attrrow);
 875                             attrrow->DecRef();
 876                         }
 877
 878                         // store merge attr if cache implemented
 879                         //attr->IncRef();
 880                         //m_data->m_mergeAttr.SetAttr(attr, row, col);
 881                     }
 882                     else
 883                     {
 884                         // one or none is non null return it or null.
 885                         if (attrrow)
 886                             attr = attrrow;
 887                         if (attrcol)
 888                         {
 889                             if (attr)
 890                                 attr->DecRef();
 891                             attr = attrcol;
 892                         }
 893                         if (attrcell)
 894                         {
 895                             if (attr)
 896                                 attr->DecRef();
 897                             attr = attrcell;
 898                         }
 899                     }
 900                 }
 901                 break;
 902
 903             case (wxGridCellAttr::Cell):
 904                 attr = m_data->m_cellAttrs.GetAttr(row, col);
 905                 break;
 906
 907             case (wxGridCellAttr::Col):
 908                 attr = m_data->m_colAttrs.GetAttr(col);
 909                 break;
 910
 911             case (wxGridCellAttr::Row):
 912                 attr = m_data->m_rowAttrs.GetAttr(row);
 913                 break;
 914
 915             default:
 916                 // unused as yet...
 917                 // (wxGridCellAttr::Default):
 918                 // (wxGridCellAttr::Merged):
 919                 break;
 920         }
 921     }
 922
 923     return attr;
 924 }
 925
 926 void wxGridCellAttrProvider::SetAttr(wxGridCellAttr *attr,
 927                                      int row, int col)
 928 {
 929     if ( !m_data )
 930         InitData();
 931
 932     m_data->m_cellAttrs.SetAttr(attr, row, col);
 933 }
 934
 935 void wxGridCellAttrProvider::SetRowAttr(wxGridCellAttr *attr, int row)
 936 {
 937     if ( !m_data )
 938         InitData();
 939
 940     m_data->m_rowAttrs.SetAttr(attr, row);
 941 }
 942
 943 void wxGridCellAttrProvider::SetColAttr(wxGridCellAttr *attr, int col)
 944 {
 945     if ( !m_data )
 946         InitData();
 947
 948     m_data->m_colAttrs.SetAttr(attr, col);
 949 }
 950
 951 void wxGridCellAttrProvider::UpdateAttrRows( size_t pos, int numRows )
 952 {
 953     if ( m_data )
 954     {
 955         m_data->m_cellAttrs.UpdateAttrRows( pos, numRows );
 956
 957         m_data->m_rowAttrs.UpdateAttrRowsOrCols( pos, numRows );
 958     }
 959 }
 960
 961 void wxGridCellAttrProvider::UpdateAttrCols( size_t pos, int numCols )
 962 {
 963     if ( m_data )
 964     {
 965         m_data->m_cellAttrs.UpdateAttrCols( pos, numCols );
 966
 967         m_data->m_colAttrs.UpdateAttrRowsOrCols( pos, numCols );
 968     }
 969 }
 970
 971 const wxGridColumnHeaderRenderer&
 972 wxGridCellAttrProvider::GetColumnHeaderRenderer(int WXUNUSED(col))
 973 {
 974     return gs_defaultHeaderRenderers.colRenderer;
 975 }
 976
 977 const wxGridRowHeaderRenderer&
 978 wxGridCellAttrProvider::GetRowHeaderRenderer(int WXUNUSED(row))
 979 {
 980     return gs_defaultHeaderRenderers.rowRenderer;
 981 }
 982
 983 const wxGridCornerHeaderRenderer& wxGridCellAttrProvider::GetCornerRenderer()
 984 {
 985     return gs_defaultHeaderRenderers.cornerRenderer;
 986 }
 987
 988 // ----------------------------------------------------------------------------
 989 // wxGridTableBase
 990 // ----------------------------------------------------------------------------
 991
 992 IMPLEMENT_ABSTRACT_CLASS( wxGridTableBase, wxObject )
 993
 994 wxGridTableBase::wxGridTableBase()
 995 {
 996     m_view = NULL;
 997     m_attrProvider = NULL;
 998 }
 999
1000 wxGridTableBase::~wxGridTableBase()
1001 {
1002     delete m_attrProvider;
1003 }
1004
1005 void wxGridTableBase::SetAttrProvider(wxGridCellAttrProvider *attrProvider)
1006 {
1007     delete m_attrProvider;
1008     m_attrProvider = attrProvider;
1009 }
1010
1011 bool wxGridTableBase::CanHaveAttributes()
1012 {
1013     if ( ! GetAttrProvider() )
1014     {
1015         // use the default attr provider by default
1016         SetAttrProvider(new wxGridCellAttrProvider);
1017     }
1018
1019     return true;
1020 }
1021
1022 wxGridCellAttr *wxGridTableBase::GetAttr(int row, int col, wxGridCellAttr::wxAttrKind  kind)
1023 {
1024     if ( m_attrProvider )
1025         return m_attrProvider->GetAttr(row, col, kind);
1026     else
1027         return NULL;
1028 }
1029
1030 void wxGridTableBase::SetAttr(wxGridCellAttr* attr, int row, int col)
1031 {
1032     if ( m_attrProvider )
1033     {
1034         if ( attr )
1035             attr->SetKind(wxGridCellAttr::Cell);
1036         m_attrProvider->SetAttr(attr, row, col);
1037     }
1038     else
1039     {
1040         // as we take ownership of the pointer and don't store it, we must
1041         // free it now
1042         wxSafeDecRef(attr);
1043     }
1044 }
1045
1046 void wxGridTableBase::SetRowAttr(wxGridCellAttr *attr, int row)
1047 {
1048     if ( m_attrProvider )
1049     {
1050         attr->SetKind(wxGridCellAttr::Row);
1051         m_attrProvider->SetRowAttr(attr, row);
1052     }
1053     else
1054     {
1055         // as we take ownership of the pointer and don't store it, we must
1056         // free it now
1057         wxSafeDecRef(attr);
1058     }
1059 }
1060
1061 void wxGridTableBase::SetColAttr(wxGridCellAttr *attr, int col)
1062 {
1063     if ( m_attrProvider )
1064     {
1065         attr->SetKind(wxGridCellAttr::Col);
1066         m_attrProvider->SetColAttr(attr, col);
1067     }
1068     else
1069     {
1070         // as we take ownership of the pointer and don't store it, we must
1071         // free it now
1072         wxSafeDecRef(attr);
1073     }
1074 }
1075
1076 bool wxGridTableBase::InsertRows( size_t WXUNUSED(pos),
1077                                   size_t WXUNUSED(numRows) )
1078 {
1079     wxFAIL_MSG( wxT("Called grid table class function InsertRows\nbut your derived table class does not override this function") );
1080
1081     return false;
1082 }
1083
1084 bool wxGridTableBase::AppendRows( size_t WXUNUSED(numRows) )
1085 {
1086     wxFAIL_MSG( wxT("Called grid table class function AppendRows\nbut your derived table class does not override this function"));
1087
1088     return false;
1089 }
1090
1091 bool wxGridTableBase::DeleteRows( size_t WXUNUSED(pos),
1092                                   size_t WXUNUSED(numRows) )
1093 {
1094     wxFAIL_MSG( wxT("Called grid table class function DeleteRows\nbut your derived table class does not override this function"));
1095
1096     return false;
1097 }
1098
1099 bool wxGridTableBase::InsertCols( size_t WXUNUSED(pos),
1100                                   size_t WXUNUSED(numCols) )
1101 {
1102     wxFAIL_MSG( wxT("Called grid table class function InsertCols\nbut your derived table class does not override this function"));
1103
1104     return false;
1105 }
1106
1107 bool wxGridTableBase::AppendCols( size_t WXUNUSED(numCols) )
1108 {
1109     wxFAIL_MSG(wxT("Called grid table class function AppendCols\nbut your derived table class does not override this function"));
1110
1111     return false;
1112 }
1113
1114 bool wxGridTableBase::DeleteCols( size_t WXUNUSED(pos),
1115                                   size_t WXUNUSED(numCols) )
1116 {
1117     wxFAIL_MSG( wxT("Called grid table class function DeleteCols\nbut your derived table class does not override this function"));
1118
1119     return false;
1120 }
1121
1122 wxString wxGridTableBase::GetRowLabelValue( int row )
1123 {
1124     wxString s;
1125
1126     // RD: Starting the rows at zero confuses users,
1127     // no matter how much it makes sense to us geeks.
1128     s << row + 1;
1129
1130     return s;
1131 }
1132
1133 wxString wxGridTableBase::GetColLabelValue( int col )
1134 {
1135     // default col labels are:
1136     //   cols 0 to 25   : A-Z
1137     //   cols 26 to 675 : AA-ZZ
1138     //   etc.
1139
1140     wxString s;
1141     unsigned int i, n;
1142     for ( n = 1; ; n++ )
1143     {
1144         s += (wxChar) (wxT('A') + (wxChar)(col % 26));
1145         col = col / 26 - 1;
1146         if ( col < 0 )
1147             break;
1148     }
1149
1150     // reverse the string...
1151     wxString s2;
1152     for ( i = 0; i < n; i++ )
1153     {
1154         s2 += s[n - i - 1];
1155     }
1156
1157     return s2;
1158 }
1159
1160 wxString wxGridTableBase::GetTypeName( int WXUNUSED(row), int WXUNUSED(col) )
1161 {
1162     return wxGRID_VALUE_STRING;
1163 }
1164
1165 bool wxGridTableBase::CanGetValueAs( int WXUNUSED(row), int WXUNUSED(col),
1166                                      const wxString& typeName )
1167 {
1168     return typeName == wxGRID_VALUE_STRING;
1169 }
1170
1171 bool wxGridTableBase::CanSetValueAs( int row, int col, const wxString& typeName )
1172 {
1173     return CanGetValueAs(row, col, typeName);
1174 }
1175
1176 long wxGridTableBase::GetValueAsLong( int WXUNUSED(row), int WXUNUSED(col) )
1177 {
1178     return 0;
1179 }
1180
1181 double wxGridTableBase::GetValueAsDouble( int WXUNUSED(row), int WXUNUSED(col) )
1182 {
1183     return 0.0;
1184 }
1185
1186 bool wxGridTableBase::GetValueAsBool( int WXUNUSED(row), int WXUNUSED(col) )
1187 {
1188     return false;
1189 }
1190
1191 void wxGridTableBase::SetValueAsLong( int WXUNUSED(row), int WXUNUSED(col),
1192                                       long WXUNUSED(value) )
1193 {
1194 }
1195
1196 void wxGridTableBase::SetValueAsDouble( int WXUNUSED(row), int WXUNUSED(col),
1197                                         double WXUNUSED(value) )
1198 {
1199 }
1200
1201 void wxGridTableBase::SetValueAsBool( int WXUNUSED(row), int WXUNUSED(col),
1202                                       bool WXUNUSED(value) )
1203 {
1204 }
1205
1206 void* wxGridTableBase::GetValueAsCustom( int WXUNUSED(row), int WXUNUSED(col),
1207                                          const wxString& WXUNUSED(typeName) )
1208 {
1209     return NULL;
1210 }
1211
1212 void  wxGridTableBase::SetValueAsCustom( int WXUNUSED(row), int WXUNUSED(col),
1213                                          const wxString& WXUNUSED(typeName),
1214                                          void* WXUNUSED(value) )
1215 {
1216 }
1217
1218 //////////////////////////////////////////////////////////////////////
1219 //
1220 // Message class for the grid table to send requests and notifications
1221 // to the grid view
1222 //
1223
1224 wxGridTableMessage::wxGridTableMessage()
1225 {
1226     m_table =  NULL;
1227     m_id = -1;
1228     m_comInt1 = -1;
1229     m_comInt2 = -1;
1230 }
1231
1232 wxGridTableMessage::wxGridTableMessage( wxGridTableBase *table, int id,
1233                                         int commandInt1, int commandInt2 )
1234 {
1235     m_table = table;
1236     m_id = id;
1237     m_comInt1 = commandInt1;
1238     m_comInt2 = commandInt2;
1239 }
1240
1241 //////////////////////////////////////////////////////////////////////
1242 //
1243 // A basic grid table for string data. An object of this class will
1244 // created by wxGrid if you don't specify an alternative table class.
1245 //
1246
1247 WX_DEFINE_OBJARRAY(wxGridStringArray)
1248
1249 IMPLEMENT_DYNAMIC_CLASS( wxGridStringTable, wxGridTableBase )
1250
1251 wxGridStringTable::wxGridStringTable()
1252         : wxGridTableBase()
1253 {
1254     m_numCols = 0;
1255 }
1256
1257 wxGridStringTable::wxGridStringTable( int numRows, int numCols )
1258         : wxGridTableBase()
1259 {
1260     m_numCols = numCols;
1261
1262     m_data.Alloc( numRows );
1263
1264     wxArrayString sa;
1265     sa.Alloc( numCols );
1266     sa.Add( wxEmptyString, numCols );
1267
1268     m_data.Add( sa, numRows );
1269 }
1270
1271 wxString wxGridStringTable::GetValue( int row, int col )
1272 {
1273     wxCHECK_MSG( (row >= 0 && row < GetNumberRows()) &&
1274                  (col >= 0 && col < GetNumberCols()),
1275                  wxEmptyString,
1276                  wxT("invalid row or column index in wxGridStringTable") );
1277
1278     return m_data[row][col];
1279 }
1280
1281 void wxGridStringTable::SetValue( int row, int col, const wxString& value )
1282 {
1283     wxCHECK_RET( (row >= 0 && row < GetNumberRows()) &&
1284                  (col >= 0 && col < GetNumberCols()),
1285                  wxT("invalid row or column index in wxGridStringTable") );
1286
1287     m_data[row][col] = value;
1288 }
1289
1290 void wxGridStringTable::Clear()
1291 {
1292     int row, col;
1293     int numRows, numCols;
1294
1295     numRows = m_data.GetCount();
1296     if ( numRows > 0 )
1297     {
1298         numCols = m_data[0].GetCount();
1299
1300         for ( row = 0; row < numRows; row++ )
1301         {
1302             for ( col = 0; col < numCols; col++ )
1303             {
1304                 m_data[row][col] = wxEmptyString;
1305             }
1306         }
1307     }
1308 }
1309
1310 bool wxGridStringTable::InsertRows( size_t pos, size_t numRows )
1311 {
1312     size_t curNumRows = m_data.GetCount();
1313     size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
1314                           ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1315
1316     if ( pos >= curNumRows )
1317     {
1318         return AppendRows( numRows );
1319     }
1320
1321     wxArrayString sa;
1322     sa.Alloc( curNumCols );
1323     sa.Add( wxEmptyString, curNumCols );
1324     m_data.Insert( sa, pos, numRows );
1325
1326     if ( GetView() )
1327     {
1328         wxGridTableMessage msg( this,
1329                                 wxGRIDTABLE_NOTIFY_ROWS_INSERTED,
1330                                 pos,
1331                                 numRows );
1332
1333         GetView()->ProcessTableMessage( msg );
1334     }
1335
1336     return true;
1337 }
1338
1339 bool wxGridStringTable::AppendRows( size_t numRows )
1340 {
1341     size_t curNumRows = m_data.GetCount();
1342     size_t curNumCols = ( curNumRows > 0
1343                          ? m_data[0].GetCount()
1344                          : ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1345
1346     wxArrayString sa;
1347     if ( curNumCols > 0 )
1348     {
1349         sa.Alloc( curNumCols );
1350         sa.Add( wxEmptyString, curNumCols );
1351     }
1352
1353     m_data.Add( sa, numRows );
1354
1355     if ( GetView() )
1356     {
1357         wxGridTableMessage msg( this,
1358                                 wxGRIDTABLE_NOTIFY_ROWS_APPENDED,
1359                                 numRows );
1360
1361         GetView()->ProcessTableMessage( msg );
1362     }
1363
1364     return true;
1365 }
1366
1367 bool wxGridStringTable::DeleteRows( size_t pos, size_t numRows )
1368 {
1369     size_t curNumRows = m_data.GetCount();
1370
1371     if ( pos >= curNumRows )
1372     {
1373         wxFAIL_MSG( wxString::Format
1374                     (
1375                         wxT("Called wxGridStringTable::DeleteRows(pos=%lu, N=%lu)\nPos value is invalid for present table with %lu rows"),
1376                         (unsigned long)pos,
1377                         (unsigned long)numRows,
1378                         (unsigned long)curNumRows
1379                     ) );
1380
1381         return false;
1382     }
1383
1384     if ( numRows > curNumRows - pos )
1385     {
1386         numRows = curNumRows - pos;
1387     }
1388
1389     if ( numRows >= curNumRows )
1390     {
1391         m_data.Clear();
1392     }
1393     else
1394     {
1395         m_data.RemoveAt( pos, numRows );
1396     }
1397
1398     if ( GetView() )
1399     {
1400         wxGridTableMessage msg( this,
1401                                 wxGRIDTABLE_NOTIFY_ROWS_DELETED,
1402                                 pos,
1403                                 numRows );
1404
1405         GetView()->ProcessTableMessage( msg );
1406     }
1407
1408     return true;
1409 }
1410
1411 bool wxGridStringTable::InsertCols( size_t pos, size_t numCols )
1412 {
1413     size_t row, col;
1414
1415     size_t curNumRows = m_data.GetCount();
1416     size_t curNumCols = ( curNumRows > 0
1417                          ? m_data[0].GetCount()
1418                          : ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1419
1420     if ( pos >= curNumCols )
1421     {
1422         return AppendCols( numCols );
1423     }
1424
1425     if ( !m_colLabels.IsEmpty() )
1426     {
1427         m_colLabels.Insert( wxEmptyString, pos, numCols );
1428
1429         size_t i;
1430         for ( i = pos; i < pos + numCols; i++ )
1431             m_colLabels[i] = wxGridTableBase::GetColLabelValue( i );
1432     }
1433
1434     for ( row = 0; row < curNumRows; row++ )
1435     {
1436         for ( col = pos; col < pos + numCols; col++ )
1437         {
1438             m_data[row].Insert( wxEmptyString, col );
1439         }
1440     }
1441
1442     m_numCols += numCols;
1443
1444     if ( GetView() )
1445     {
1446         wxGridTableMessage msg( this,
1447                                 wxGRIDTABLE_NOTIFY_COLS_INSERTED,
1448                                 pos,
1449                                 numCols );
1450
1451         GetView()->ProcessTableMessage( msg );
1452     }
1453
1454     return true;
1455 }
1456
1457 bool wxGridStringTable::AppendCols( size_t numCols )
1458 {
1459     size_t row;
1460
1461     size_t curNumRows = m_data.GetCount();
1462
1463     for ( row = 0; row < curNumRows; row++ )
1464     {
1465         m_data[row].Add( wxEmptyString, numCols );
1466     }
1467
1468     m_numCols += numCols;
1469
1470     if ( GetView() )
1471     {
1472         wxGridTableMessage msg( this,
1473                                 wxGRIDTABLE_NOTIFY_COLS_APPENDED,
1474                                 numCols );
1475
1476         GetView()->ProcessTableMessage( msg );
1477     }
1478
1479     return true;
1480 }
1481
1482 bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
1483 {
1484     size_t row;
1485
1486     size_t curNumRows = m_data.GetCount();
1487     size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
1488                           ( GetView() ? GetView()->GetNumberCols() : 0 ) );
1489
1490     if ( pos >= curNumCols )
1491     {
1492         wxFAIL_MSG( wxString::Format
1493                     (
1494                         wxT("Called wxGridStringTable::DeleteCols(pos=%lu, N=%lu)\nPos value is invalid for present table with %lu cols"),
1495                         (unsigned long)pos,
1496                         (unsigned long)numCols,
1497                         (unsigned long)curNumCols
1498                     ) );
1499         return false;
1500     }
1501
1502     int colID;
1503     if ( GetView() )
1504         colID = GetView()->GetColAt( pos );
1505     else
1506         colID = pos;
1507
1508     if ( numCols > curNumCols - colID )
1509     {
1510         numCols = curNumCols - colID;
1511     }
1512
1513     if ( !m_colLabels.IsEmpty() )
1514     {
1515         // m_colLabels stores just as many elements as it needs, e.g. if only
1516         // the label of the first column had been set it would have only one
1517         // element and not numCols, so account for it
1518         int nToRm = m_colLabels.size() - colID;
1519         if ( nToRm > 0 )
1520             m_colLabels.RemoveAt( colID, nToRm );
1521     }
1522
1523     if ( numCols >= curNumCols )
1524     {
1525         for ( row = 0; row < curNumRows; row++ )
1526         {
1527             m_data[row].Clear();
1528         }
1529
1530         m_numCols = 0;
1531     }
1532     else // something will be left
1533     {
1534         for ( row = 0; row < curNumRows; row++ )
1535         {
1536             m_data[row].RemoveAt( colID, numCols );
1537         }
1538
1539         m_numCols -= numCols;
1540     }
1541
1542     if ( GetView() )
1543     {
1544         wxGridTableMessage msg( this,
1545                                 wxGRIDTABLE_NOTIFY_COLS_DELETED,
1546                                 pos,
1547                                 numCols );
1548
1549         GetView()->ProcessTableMessage( msg );
1550     }
1551
1552     return true;
1553 }
1554
1555 wxString wxGridStringTable::GetRowLabelValue( int row )
1556 {
1557     if ( row > (int)(m_rowLabels.GetCount()) - 1 )
1558     {
1559         // using default label
1560         //
1561         return wxGridTableBase::GetRowLabelValue( row );
1562     }
1563     else
1564     {
1565         return m_rowLabels[row];
1566     }
1567 }
1568
1569 wxString wxGridStringTable::GetColLabelValue( int col )
1570 {
1571     if ( col > (int)(m_colLabels.GetCount()) - 1 )
1572     {
1573         // using default label
1574         //
1575         return wxGridTableBase::GetColLabelValue( col );
1576     }
1577     else
1578     {
1579         return m_colLabels[col];
1580     }
1581 }
1582
1583 void wxGridStringTable::SetRowLabelValue( int row, const wxString& value )
1584 {
1585     if ( row > (int)(m_rowLabels.GetCount()) - 1 )
1586     {
1587         int n = m_rowLabels.GetCount();
1588         int i;
1589
1590         for ( i = n; i <= row; i++ )
1591         {
1592             m_rowLabels.Add( wxGridTableBase::GetRowLabelValue(i) );
1593         }
1594     }
1595
1596     m_rowLabels[row] = value;
1597 }
1598
1599 void wxGridStringTable::SetColLabelValue( int col, const wxString& value )
1600 {
1601     if ( col > (int)(m_colLabels.GetCount()) - 1 )
1602     {
1603         int n = m_colLabels.GetCount();
1604         int i;
1605
1606         for ( i = n; i <= col; i++ )
1607         {
1608             m_colLabels.Add( wxGridTableBase::GetColLabelValue(i) );
1609         }
1610     }
1611
1612     m_colLabels[col] = value;
1613 }
1614
1615
1616 //////////////////////////////////////////////////////////////////////
1617 //////////////////////////////////////////////////////////////////////
1618
1619 BEGIN_EVENT_TABLE(wxGridSubwindow, wxWindow)
1620     EVT_MOUSE_CAPTURE_LOST(wxGridSubwindow::OnMouseCaptureLost)
1621 END_EVENT_TABLE()
1622
1623 void wxGridSubwindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
1624 {
1625     m_owner->CancelMouseCapture();
1626 }
1627
1628 BEGIN_EVENT_TABLE( wxGridRowLabelWindow, wxGridSubwindow )
1629     EVT_PAINT( wxGridRowLabelWindow::OnPaint )
1630     EVT_MOUSEWHEEL( wxGridRowLabelWindow::OnMouseWheel )
1631     EVT_MOUSE_EVENTS( wxGridRowLabelWindow::OnMouseEvent )
1632 END_EVENT_TABLE()
1633
1634 void wxGridRowLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
1635 {
1636     wxPaintDC dc(this);
1637
1638     // NO - don't do this because it will set both the x and y origin
1639     // coords to match the parent scrolled window and we just want to
1640     // set the y coord  - MB
1641     //
1642     // m_owner->PrepareDC( dc );
1643
1644     int x, y;
1645     m_owner->CalcUnscrolledPosition( 0, 0, &x, &y );
1646     wxPoint pt = dc.GetDeviceOrigin();
1647     dc.SetDeviceOrigin( pt.x, pt.y-y );
1648
1649     wxArrayInt rows = m_owner->CalcRowLabelsExposed( GetUpdateRegion() );
1650     m_owner->DrawRowLabels( dc, rows );
1651 }
1652
1653 void wxGridRowLabelWindow::OnMouseEvent( wxMouseEvent& event )
1654 {
1655     m_owner->ProcessRowLabelMouseEvent( event );
1656 }
1657
1658 void wxGridRowLabelWindow::OnMouseWheel( wxMouseEvent& event )
1659 {
1660     if (!m_owner->GetEventHandler()->ProcessEvent( event ))
1661         event.Skip();
1662 }
1663
1664 //////////////////////////////////////////////////////////////////////
1665
1666 BEGIN_EVENT_TABLE( wxGridColLabelWindow, wxGridSubwindow )
1667     EVT_PAINT( wxGridColLabelWindow::OnPaint )
1668     EVT_MOUSEWHEEL( wxGridColLabelWindow::OnMouseWheel )
1669     EVT_MOUSE_EVENTS( wxGridColLabelWindow::OnMouseEvent )
1670 END_EVENT_TABLE()
1671
1672 void wxGridColLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
1673 {
1674     wxPaintDC dc(this);
1675
1676     // NO - don't do this because it will set both the x and y origin
1677     // coords to match the parent scrolled window and we just want to
1678     // set the x coord  - MB
1679     //
1680     // m_owner->PrepareDC( dc );
1681
1682     int x, y;
1683     m_owner->CalcUnscrolledPosition( 0, 0, &x, &y );
1684     wxPoint pt = dc.GetDeviceOrigin();
1685     if (GetLayoutDirection() == wxLayout_RightToLeft)
1686         dc.SetDeviceOrigin( pt.x+x, pt.y );
1687     else
1688         dc.SetDeviceOrigin( pt.x-x, pt.y );
1689
1690     wxArrayInt cols = m_owner->CalcColLabelsExposed( GetUpdateRegion() );
1691     m_owner->DrawColLabels( dc, cols );
1692 }
1693
1694 void wxGridColLabelWindow::OnMouseEvent( wxMouseEvent& event )
1695 {
1696     m_owner->ProcessColLabelMouseEvent( event );
1697 }
1698
1699 void wxGridColLabelWindow::OnMouseWheel( wxMouseEvent& event )
1700 {
1701     if (!m_owner->GetEventHandler()->ProcessEvent( event ))
1702         event.Skip();
1703 }
1704
1705 //////////////////////////////////////////////////////////////////////
1706
1707 BEGIN_EVENT_TABLE( wxGridCornerLabelWindow, wxGridSubwindow )
1708     EVT_MOUSEWHEEL( wxGridCornerLabelWindow::OnMouseWheel )
1709     EVT_MOUSE_EVENTS( wxGridCornerLabelWindow::OnMouseEvent )
1710     EVT_PAINT( wxGridCornerLabelWindow::OnPaint )
1711 END_EVENT_TABLE()
1712
1713 void wxGridCornerLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
1714 {
1715     wxPaintDC dc(this);
1716
1717     m_owner->DrawCornerLabel(dc);
1718 }
1719
1720 void wxGridCornerLabelWindow::OnMouseEvent( wxMouseEvent& event )
1721 {
1722     m_owner->ProcessCornerLabelMouseEvent( event );
1723 }
1724
1725 void wxGridCornerLabelWindow::OnMouseWheel( wxMouseEvent& event )
1726 {
1727     if (!m_owner->GetEventHandler()->ProcessEvent(event))
1728         event.Skip();
1729 }
1730
1731 //////////////////////////////////////////////////////////////////////
1732
1733 BEGIN_EVENT_TABLE( wxGridWindow, wxGridSubwindow )
1734     EVT_PAINT( wxGridWindow::OnPaint )
1735     EVT_MOUSEWHEEL( wxGridWindow::OnMouseWheel )
1736     EVT_MOUSE_EVENTS( wxGridWindow::OnMouseEvent )
1737     EVT_KEY_DOWN( wxGridWindow::OnKeyDown )
1738     EVT_KEY_UP( wxGridWindow::OnKeyUp )
1739     EVT_CHAR( wxGridWindow::OnChar )
1740     EVT_SET_FOCUS( wxGridWindow::OnFocus )
1741     EVT_KILL_FOCUS( wxGridWindow::OnFocus )
1742     EVT_ERASE_BACKGROUND( wxGridWindow::OnEraseBackground )
1743 END_EVENT_TABLE()
1744
1745 void wxGridWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1746 {
1747     wxPaintDC dc( this );
1748     m_owner->PrepareDC( dc );
1749     wxRegion reg = GetUpdateRegion();
1750     wxGridCellCoordsArray dirtyCells = m_owner->CalcCellsExposed( reg );
1751     m_owner->DrawGridCellArea( dc, dirtyCells );
1752
1753     m_owner->DrawGridSpace( dc );
1754
1755     m_owner->DrawAllGridLines( dc, reg );
1756
1757     m_owner->DrawHighlight( dc, dirtyCells );
1758 }
1759
1760 void wxGridWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
1761 {
1762     wxWindow::ScrollWindow( dx, dy, rect );
1763     m_owner->GetGridRowLabelWindow()->ScrollWindow( 0, dy, rect );
1764     m_owner->GetGridColLabelWindow()->ScrollWindow( dx, 0, rect );
1765 }
1766
1767 void wxGridWindow::OnMouseEvent( wxMouseEvent& event )
1768 {
1769     if (event.ButtonDown(wxMOUSE_BTN_LEFT) && FindFocus() != this)
1770         SetFocus();
1771
1772     m_owner->ProcessGridCellMouseEvent( event );
1773 }
1774
1775 void wxGridWindow::OnMouseWheel( wxMouseEvent& event )
1776 {
1777     if (!m_owner->GetEventHandler()->ProcessEvent( event ))
1778         event.Skip();
1779 }
1780
1781 // This seems to be required for wxMotif/wxGTK otherwise the mouse
1782 // cursor must be in the cell edit control to get key events
1783 //
1784 void wxGridWindow::OnKeyDown( wxKeyEvent& event )
1785 {
1786     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1787         event.Skip();
1788 }
1789
1790 void wxGridWindow::OnKeyUp( wxKeyEvent& event )
1791 {
1792     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1793         event.Skip();
1794 }
1795
1796 void wxGridWindow::OnChar( wxKeyEvent& event )
1797 {
1798     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1799         event.Skip();
1800 }
1801
1802 void wxGridWindow::OnEraseBackground( wxEraseEvent& WXUNUSED(event) )
1803 {
1804 }
1805
1806 void wxGridWindow::OnFocus(wxFocusEvent& event)
1807 {
1808     // and if we have any selection, it has to be repainted, because it
1809     // uses different colour when the grid is not focused:
1810     if ( m_owner->IsSelection() )
1811     {
1812         Refresh();
1813     }
1814     else
1815     {
1816         // NB: Note that this code is in "else" branch only because the other
1817         //     branch refreshes everything and so there's no point in calling
1818         //     Refresh() again, *not* because it should only be done if
1819         //     !IsSelection(). If the above code is ever optimized to refresh
1820         //     only selected area, this needs to be moved out of the "else"
1821         //     branch so that it's always executed.
1822
1823         // current cell cursor {dis,re}appears on focus change:
1824         const wxGridCellCoords cursorCoords(m_owner->GetGridCursorRow(),
1825                                             m_owner->GetGridCursorCol());
1826         const wxRect cursor =
1827             m_owner->BlockToDeviceRect(cursorCoords, cursorCoords);
1828         Refresh(true, &cursor);
1829     }
1830
1831     if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
1832         event.Skip();
1833 }
1834
1835 #define internalXToCol(x) XToCol(x, true)
1836 #define internalYToRow(y) YToRow(y, true)
1837
1838 /////////////////////////////////////////////////////////////////////
1839
1840 #if wxUSE_EXTENDED_RTTI
1841 WX_DEFINE_FLAGS( wxGridStyle )
1842
1843 wxBEGIN_FLAGS( wxGridStyle )
1844     // new style border flags, we put them first to
1845     // use them for streaming out
1846     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
1847     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
1848     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
1849     wxFLAGS_MEMBER(wxBORDER_RAISED)
1850     wxFLAGS_MEMBER(wxBORDER_STATIC)
1851     wxFLAGS_MEMBER(wxBORDER_NONE)
1852
1853     // old style border flags
1854     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
1855     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
1856     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
1857     wxFLAGS_MEMBER(wxRAISED_BORDER)
1858     wxFLAGS_MEMBER(wxSTATIC_BORDER)
1859     wxFLAGS_MEMBER(wxBORDER)
1860
1861     // standard window styles
1862     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
1863     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
1864     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
1865     wxFLAGS_MEMBER(wxWANTS_CHARS)
1866     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
1867     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB)
1868     wxFLAGS_MEMBER(wxVSCROLL)
1869     wxFLAGS_MEMBER(wxHSCROLL)
1870
1871 wxEND_FLAGS( wxGridStyle )
1872
1873 IMPLEMENT_DYNAMIC_CLASS_XTI(wxGrid, wxScrolledWindow,"wx/grid.h")
1874
1875 wxBEGIN_PROPERTIES_TABLE(wxGrid)
1876     wxHIDE_PROPERTY( Children )
1877     wxPROPERTY_FLAGS( WindowStyle , wxGridStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
1878 wxEND_PROPERTIES_TABLE()
1879
1880 wxBEGIN_HANDLERS_TABLE(wxGrid)
1881 wxEND_HANDLERS_TABLE()
1882
1883 wxCONSTRUCTOR_5( wxGrid , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
1884
1885 /*
1886  TODO : Expose more information of a list's layout, etc. via appropriate objects (e.g., NotebookPageInfo)
1887 */
1888 #else
1889 IMPLEMENT_DYNAMIC_CLASS( wxGrid, wxScrolledWindow )
1890 #endif
1891
1892 BEGIN_EVENT_TABLE( wxGrid, wxScrolledWindow )
1893     EVT_PAINT( wxGrid::OnPaint )
1894     EVT_SIZE( wxGrid::OnSize )
1895     EVT_KEY_DOWN( wxGrid::OnKeyDown )
1896     EVT_KEY_UP( wxGrid::OnKeyUp )
1897     EVT_CHAR ( wxGrid::OnChar )
1898     EVT_ERASE_BACKGROUND( wxGrid::OnEraseBackground )
1899 END_EVENT_TABLE()
1900
1901 bool wxGrid::Create(wxWindow *parent, wxWindowID id,
1902                           const wxPoint& pos, const wxSize& size,
1903                           long style, const wxString& name)
1904 {
1905     if (!wxScrolledWindow::Create(parent, id, pos, size,
1906                                   style | wxWANTS_CHARS, name))
1907         return false;
1908
1909     m_colMinWidths = wxLongToLongHashMap(GRID_HASH_SIZE);
1910     m_rowMinHeights = wxLongToLongHashMap(GRID_HASH_SIZE);
1911
1912     Create();
1913     SetInitialSize(size);
1914     SetScrollRate(m_scrollLineX, m_scrollLineY);
1915     CalcDimensions();
1916
1917     return true;
1918 }
1919
1920 wxGrid::~wxGrid()
1921 {
1922     if ( m_winCapture )
1923         m_winCapture->ReleaseMouse();
1924
1925     // Ensure that the editor control is destroyed before the grid is,
1926     // otherwise we crash later when the editor tries to do something with the
1927     // half destroyed grid
1928     HideCellEditControl();
1929
1930     // Must do this or ~wxScrollHelper will pop the wrong event handler
1931     SetTargetWindow(this);
1932     ClearAttrCache();
1933     wxSafeDecRef(m_defaultCellAttr);
1934
1935 #ifdef DEBUG_ATTR_CACHE
1936     size_t total = gs_nAttrCacheHits + gs_nAttrCacheMisses;
1937     wxPrintf(wxT("wxGrid attribute cache statistics: "
1938                 "total: %u, hits: %u (%u%%)\n"),
1939              total, gs_nAttrCacheHits,
1940              total ? (gs_nAttrCacheHits*100) / total : 0);
1941 #endif
1942
1943     // if we own the table, just delete it, otherwise at least don't leave it
1944     // with dangling view pointer
1945     if ( m_ownTable )
1946         delete m_table;
1947     else if ( m_table && m_table->GetView() == this )
1948         m_table->SetView(NULL);
1949
1950     delete m_typeRegistry;
1951     delete m_selection;
1952
1953     delete m_setFixedRows;
1954     delete m_setFixedCols;
1955 }
1956
1957 //
1958 // ----- internal init and update functions
1959 //
1960
1961 // NOTE: If using the default visual attributes works everywhere then this can
1962 // be removed as well as the #else cases below.
1963 #define _USE_VISATTR 0
1964
1965 void wxGrid::Create()
1966 {
1967     // create the type registry
1968     m_typeRegistry = new wxGridTypeRegistry;
1969
1970     m_cellEditCtrlEnabled = false;
1971
1972     m_defaultCellAttr = new wxGridCellAttr();
1973
1974     // Set default cell attributes
1975     m_defaultCellAttr->SetDefAttr(m_defaultCellAttr);
1976     m_defaultCellAttr->SetKind(wxGridCellAttr::Default);
1977     m_defaultCellAttr->SetFont(GetFont());
1978     m_defaultCellAttr->SetAlignment(wxALIGN_LEFT, wxALIGN_TOP);
1979     m_defaultCellAttr->SetRenderer(new wxGridCellStringRenderer);
1980     m_defaultCellAttr->SetEditor(new wxGridCellTextEditor);
1981
1982 #if _USE_VISATTR
1983     wxVisualAttributes gva = wxListBox::GetClassDefaultAttributes();
1984     wxVisualAttributes lva = wxPanel::GetClassDefaultAttributes();
1985
1986     m_defaultCellAttr->SetTextColour(gva.colFg);
1987     m_defaultCellAttr->SetBackgroundColour(gva.colBg);
1988
1989 #else
1990     m_defaultCellAttr->SetTextColour(
1991         wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
1992     m_defaultCellAttr->SetBackgroundColour(
1993         wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
1994 #endif
1995
1996     m_numRows = 0;
1997     m_numCols = 0;
1998     m_currentCellCoords = wxGridNoCellCoords;
1999
2000     // subwindow components that make up the wxGrid
2001     m_rowLabelWin = new wxGridRowLabelWindow(this);
2002     CreateColumnWindow();
2003     m_cornerLabelWin = new wxGridCornerLabelWindow(this);
2004     m_gridWin = new wxGridWindow( this );
2005
2006     SetTargetWindow( m_gridWin );
2007
2008 #if _USE_VISATTR
2009     wxColour gfg = gva.colFg;
2010     wxColour gbg = gva.colBg;
2011     wxColour lfg = lva.colFg;
2012     wxColour lbg = lva.colBg;
2013 #else
2014     wxColour gfg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
2015     wxColour gbg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW );
2016     wxColour lfg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
2017     wxColour lbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
2018 #endif
2019
2020     m_cornerLabelWin->SetOwnForegroundColour(lfg);
2021     m_cornerLabelWin->SetOwnBackgroundColour(lbg);
2022     m_rowLabelWin->SetOwnForegroundColour(lfg);
2023     m_rowLabelWin->SetOwnBackgroundColour(lbg);
2024     m_colWindow->SetOwnForegroundColour(lfg);
2025     m_colWindow->SetOwnBackgroundColour(lbg);
2026
2027     m_gridWin->SetOwnForegroundColour(gfg);
2028     m_gridWin->SetOwnBackgroundColour(gbg);
2029
2030     m_labelBackgroundColour = m_rowLabelWin->GetBackgroundColour();
2031     m_labelTextColour = m_rowLabelWin->GetForegroundColour();
2032
2033     // now that we have the grid window, use its font to compute the default
2034     // row height
2035     m_defaultRowHeight = m_gridWin->GetCharHeight();
2036 #if defined(__WXMOTIF__) || defined(__WXGTK__)  // see also text ctrl sizing in ShowCellEditControl()
2037     m_defaultRowHeight += 8;
2038 #else
2039     m_defaultRowHeight += 4;
2040 #endif
2041
2042 }
2043
2044 void wxGrid::CreateColumnWindow()
2045 {
2046     if ( m_useNativeHeader )
2047     {
2048         m_colWindow = new wxGridHeaderCtrl(this);
2049         m_colLabelHeight = m_colWindow->GetBestSize().y;
2050     }
2051     else // draw labels ourselves
2052     {
2053         m_colWindow = new wxGridColLabelWindow(this);
2054         m_colLabelHeight = WXGRID_DEFAULT_COL_LABEL_HEIGHT;
2055     }
2056 }
2057
2058 bool wxGrid::CreateGrid( int numRows, int numCols,
2059                          wxGridSelectionModes selmode )
2060 {
2061     wxCHECK_MSG( !m_created,
2062                  false,
2063                  wxT("wxGrid::CreateGrid or wxGrid::SetTable called more than once") );
2064
2065     return SetTable(new wxGridStringTable(numRows, numCols), true, selmode);
2066 }
2067
2068 void wxGrid::SetSelectionMode(wxGridSelectionModes selmode)
2069 {
2070     wxCHECK_RET( m_created,
2071                  wxT("Called wxGrid::SetSelectionMode() before calling CreateGrid()") );
2072
2073     m_selection->SetSelectionMode( selmode );
2074 }
2075
2076 wxGrid::wxGridSelectionModes wxGrid::GetSelectionMode() const
2077 {
2078     wxCHECK_MSG( m_created, wxGridSelectCells,
2079                  wxT("Called wxGrid::GetSelectionMode() before calling CreateGrid()") );
2080
2081     return m_selection->GetSelectionMode();
2082 }
2083
2084 bool
2085 wxGrid::SetTable(wxGridTableBase *table,
2086                  bool takeOwnership,
2087                  wxGrid::wxGridSelectionModes selmode )
2088 {
2089     bool checkSelection = false;
2090     if ( m_created )
2091     {
2092         // stop all processing
2093         m_created = false;
2094
2095         if (m_table)
2096         {
2097             m_table->SetView(0);
2098             if( m_ownTable )
2099                 delete m_table;
2100             m_table = NULL;
2101         }
2102
2103         delete m_selection;
2104         m_selection = NULL;
2105
2106         m_ownTable = false;
2107         m_numRows = 0;
2108         m_numCols = 0;
2109         checkSelection = true;
2110
2111         // kill row and column size arrays
2112         m_colWidths.Empty();
2113         m_colRights.Empty();
2114         m_rowHeights.Empty();
2115         m_rowBottoms.Empty();
2116     }
2117
2118     if (table)
2119     {
2120         m_numRows = table->GetNumberRows();
2121         m_numCols = table->GetNumberCols();
2122
2123         if ( m_useNativeHeader )
2124             GetGridColHeader()->SetColumnCount(m_numCols);
2125
2126         m_table = table;
2127         m_table->SetView( this );
2128         m_ownTable = takeOwnership;
2129         m_selection = new wxGridSelection( this, selmode );
2130         if (checkSelection)
2131         {
2132             // If the newly set table is smaller than the
2133             // original one current cell and selection regions
2134             // might be invalid,
2135             m_selectedBlockCorner = wxGridNoCellCoords;
2136             m_currentCellCoords =
2137               wxGridCellCoords(wxMin(m_numRows, m_currentCellCoords.GetRow()),
2138                                wxMin(m_numCols, m_currentCellCoords.GetCol()));
2139             if (m_selectedBlockTopLeft.GetRow() >= m_numRows ||
2140                 m_selectedBlockTopLeft.GetCol() >= m_numCols)
2141             {
2142                 m_selectedBlockTopLeft = wxGridNoCellCoords;
2143                 m_selectedBlockBottomRight = wxGridNoCellCoords;
2144             }
2145             else
2146                 m_selectedBlockBottomRight =
2147                   wxGridCellCoords(wxMin(m_numRows,
2148                                          m_selectedBlockBottomRight.GetRow()),
2149                                    wxMin(m_numCols,
2150                                          m_selectedBlockBottomRight.GetCol()));
2151         }
2152         CalcDimensions();
2153
2154         m_created = true;
2155     }
2156
2157     return m_created;
2158 }
2159
2160 void wxGrid::Init()
2161 {
2162     m_created = false;
2163
2164     m_cornerLabelWin = NULL;
2165     m_rowLabelWin = NULL;
2166     m_colWindow = NULL;
2167     m_gridWin = NULL;
2168
2169     m_table = NULL;
2170     m_ownTable = false;
2171
2172     m_selection = NULL;
2173     m_defaultCellAttr = NULL;
2174     m_typeRegistry = NULL;
2175     m_winCapture = NULL;
2176
2177     m_rowLabelWidth  = WXGRID_DEFAULT_ROW_LABEL_WIDTH;
2178     m_colLabelHeight = WXGRID_DEFAULT_COL_LABEL_HEIGHT;
2179
2180     m_setFixedRows =
2181     m_setFixedCols = NULL;
2182
2183     // init attr cache
2184     m_attrCache.row = -1;
2185     m_attrCache.col = -1;
2186     m_attrCache.attr = NULL;
2187
2188     m_labelFont = GetFont();
2189     m_labelFont.SetWeight( wxBOLD );
2190
2191     m_rowLabelHorizAlign = wxALIGN_CENTRE;
2192     m_rowLabelVertAlign  = wxALIGN_CENTRE;
2193
2194     m_colLabelHorizAlign = wxALIGN_CENTRE;
2195     m_colLabelVertAlign  = wxALIGN_CENTRE;
2196     m_colLabelTextOrientation = wxHORIZONTAL;
2197
2198     m_defaultColWidth  = WXGRID_DEFAULT_COL_WIDTH;
2199     m_defaultRowHeight = 0; // this will be initialized after creation
2200
2201     m_minAcceptableColWidth  = WXGRID_MIN_COL_WIDTH;
2202     m_minAcceptableRowHeight = WXGRID_MIN_ROW_HEIGHT;
2203
2204     m_gridLineColour = wxColour( 192,192,192 );
2205     m_gridLinesEnabled = true;
2206     m_gridLinesClipHorz =
2207     m_gridLinesClipVert = true;
2208     m_cellHighlightColour = *wxBLACK;
2209     m_cellHighlightPenWidth = 2;
2210     m_cellHighlightROPenWidth = 1;
2211
2212     m_canDragColMove = false;
2213
2214     m_cursorMode  = WXGRID_CURSOR_SELECT_CELL;
2215     m_winCapture = NULL;
2216     m_canDragRowSize = true;
2217     m_canDragColSize = true;
2218     m_canDragGridSize = true;
2219     m_canDragCell = false;
2220     m_dragLastPos  = -1;
2221     m_dragRowOrCol = -1;
2222     m_isDragging = false;
2223     m_startDragPos = wxDefaultPosition;
2224
2225     m_sortCol = wxNOT_FOUND;
2226     m_sortIsAscending = true;
2227
2228     m_useNativeHeader =
2229     m_nativeColumnLabels = false;
2230
2231     m_waitForSlowClick = false;
2232
2233     m_rowResizeCursor = wxCursor( wxCURSOR_SIZENS );
2234     m_colResizeCursor = wxCursor( wxCURSOR_SIZEWE );
2235
2236     m_currentCellCoords = wxGridNoCellCoords;
2237
2238     m_selectedBlockTopLeft =
2239     m_selectedBlockBottomRight =
2240     m_selectedBlockCorner = wxGridNoCellCoords;
2241
2242     m_selectionBackground = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
2243     m_selectionForeground = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
2244
2245     m_editable = true;  // default for whole grid
2246
2247     m_inOnKeyDown = false;
2248     m_batchCount = 0;
2249
2250     m_extraWidth =
2251     m_extraHeight = 0;
2252
2253     m_scrollLineX = GRID_SCROLL_LINE_X;
2254     m_scrollLineY = GRID_SCROLL_LINE_Y;
2255 }
2256
2257 // ----------------------------------------------------------------------------
2258 // the idea is to call these functions only when necessary because they create
2259 // quite big arrays which eat memory mostly unnecessary - in particular, if
2260 // default widths/heights are used for all rows/columns, we may not use these
2261 // arrays at all
2262 //
2263 // with some extra code, it should be possible to only store the widths/heights
2264 // different from default ones (resulting in space savings for huge grids) but
2265 // this is not done currently
2266 // ----------------------------------------------------------------------------
2267
2268 void wxGrid::InitRowHeights()
2269 {
2270     m_rowHeights.Empty();
2271     m_rowBottoms.Empty();
2272
2273     m_rowHeights.Alloc( m_numRows );
2274     m_rowBottoms.Alloc( m_numRows );
2275
2276     m_rowHeights.Add( m_defaultRowHeight, m_numRows );
2277
2278     int rowBottom = 0;
2279     for ( int i = 0; i < m_numRows; i++ )
2280     {
2281         rowBottom += m_defaultRowHeight;
2282         m_rowBottoms.Add( rowBottom );
2283     }
2284 }
2285
2286 void wxGrid::InitColWidths()
2287 {
2288     m_colWidths.Empty();
2289     m_colRights.Empty();
2290
2291     m_colWidths.Alloc( m_numCols );
2292     m_colRights.Alloc( m_numCols );
2293
2294     m_colWidths.Add( m_defaultColWidth, m_numCols );
2295
2296     for ( int i = 0; i < m_numCols; i++ )
2297     {
2298         int colRight = ( GetColPos( i ) + 1 ) * m_defaultColWidth;
2299         m_colRights.Add( colRight );
2300     }
2301 }
2302
2303 int wxGrid::GetColWidth(int col) const
2304 {
2305     return m_colWidths.IsEmpty() ? m_defaultColWidth : m_colWidths[col];
2306 }
2307
2308 int wxGrid::GetColLeft(int col) const
2309 {
2310     return m_colRights.IsEmpty() ? GetColPos( col ) * m_defaultColWidth
2311                                  : m_colRights[col] - m_colWidths[col];
2312 }
2313
2314 int wxGrid::GetColRight(int col) const
2315 {
2316     return m_colRights.IsEmpty() ? (GetColPos( col ) + 1) * m_defaultColWidth
2317                                  : m_colRights[col];
2318 }
2319
2320 int wxGrid::GetRowHeight(int row) const
2321 {
2322     return m_rowHeights.IsEmpty() ? m_defaultRowHeight : m_rowHeights[row];
2323 }
2324
2325 int wxGrid::GetRowTop(int row) const
2326 {
2327     return m_rowBottoms.IsEmpty() ? row * m_defaultRowHeight
2328                                   : m_rowBottoms[row] - m_rowHeights[row];
2329 }
2330
2331 int wxGrid::GetRowBottom(int row) const
2332 {
2333     return m_rowBottoms.IsEmpty() ? (row + 1) * m_defaultRowHeight
2334                                   : m_rowBottoms[row];
2335 }
2336
2337 void wxGrid::CalcDimensions()
2338 {
2339     // compute the size of the scrollable area
2340     int w = m_numCols > 0 ? GetColRight(GetColAt(m_numCols - 1)) : 0;
2341     int h = m_numRows > 0 ? GetRowBottom(m_numRows - 1) : 0;
2342
2343     w += m_extraWidth;
2344     h += m_extraHeight;
2345
2346     // take into account editor if shown
2347     if ( IsCellEditControlShown() )
2348     {
2349         int w2, h2;
2350         int r = m_currentCellCoords.GetRow();
2351         int c = m_currentCellCoords.GetCol();
2352         int x = GetColLeft(c);
2353         int y = GetRowTop(r);
2354
2355         // how big is the editor
2356         wxGridCellAttr* attr = GetCellAttr(r, c);
2357         wxGridCellEditor* editor = attr->GetEditor(this, r, c);
2358         editor->GetControl()->GetSize(&w2, &h2);
2359         w2 += x;
2360         h2 += y;
2361         if ( w2 > w )
2362             w = w2;
2363         if ( h2 > h )
2364             h = h2;
2365         editor->DecRef();
2366         attr->DecRef();
2367     }
2368
2369     // preserve (more or less) the previous position
2370     int x, y;
2371     GetViewStart( &x, &y );
2372
2373     // ensure the position is valid for the new scroll ranges
2374     if ( x >= w )
2375         x = wxMax( w - 1, 0 );
2376     if ( y >= h )
2377         y = wxMax( h - 1, 0 );
2378
2379     // update the virtual size and refresh the scrollbars to reflect it
2380     m_gridWin->SetVirtualSize(w, h);
2381     Scroll(x, y);
2382     AdjustScrollbars();
2383
2384     // if our OnSize() hadn't been called (it would if we have scrollbars), we
2385     // still must reposition the children
2386     CalcWindowSizes();
2387 }
2388
2389 wxSize wxGrid::GetSizeAvailableForScrollTarget(const wxSize& size)
2390 {
2391     wxSize sizeGridWin(size);
2392     sizeGridWin.x -= m_rowLabelWidth;
2393     sizeGridWin.y -= m_colLabelHeight;
2394
2395     return sizeGridWin;
2396 }
2397
2398 void wxGrid::CalcWindowSizes()
2399 {
2400     // escape if the window is has not been fully created yet
2401
2402     if ( m_cornerLabelWin == NULL )
2403         return;
2404
2405     int cw, ch;
2406     GetClientSize( &cw, &ch );
2407
2408     // the grid may be too small to have enough space for the labels yet, don't
2409     // size the windows to negative sizes in this case
2410     int gw = cw - m_rowLabelWidth;
2411     int gh = ch - m_colLabelHeight;
2412     if (gw < 0)
2413         gw = 0;
2414     if (gh < 0)
2415         gh = 0;
2416
2417     if ( m_cornerLabelWin && m_cornerLabelWin->IsShown() )
2418         m_cornerLabelWin->SetSize( 0, 0, m_rowLabelWidth, m_colLabelHeight );
2419
2420     if ( m_colWindow && m_colWindow->IsShown() )
2421         m_colWindow->SetSize( m_rowLabelWidth, 0, gw, m_colLabelHeight );
2422
2423     if ( m_rowLabelWin && m_rowLabelWin->IsShown() )
2424         m_rowLabelWin->SetSize( 0, m_colLabelHeight, m_rowLabelWidth, gh );
2425
2426     if ( m_gridWin && m_gridWin->IsShown() )
2427         m_gridWin->SetSize( m_rowLabelWidth, m_colLabelHeight, gw, gh );
2428 }
2429
2430 // this is called when the grid table sends a message
2431 // to indicate that it has been redimensioned
2432 //
2433 bool wxGrid::Redimension( wxGridTableMessage& msg )
2434 {
2435     int i;
2436     bool result = false;
2437
2438     // Clear the attribute cache as the attribute might refer to a different
2439     // cell than stored in the cache after adding/removing rows/columns.
2440     ClearAttrCache();
2441
2442     // By the same reasoning, the editor should be dismissed if columns are
2443     // added or removed. And for consistency, it should IMHO always be
2444     // removed, not only if the cell "underneath" it actually changes.
2445     // For now, I intentionally do not save the editor's content as the
2446     // cell it might want to save that stuff to might no longer exist.
2447     HideCellEditControl();
2448
2449     switch ( msg.GetId() )
2450     {
2451         case wxGRIDTABLE_NOTIFY_ROWS_INSERTED:
2452         {
2453             size_t pos = msg.GetCommandInt();
2454             int numRows = msg.GetCommandInt2();
2455
2456             m_numRows += numRows;
2457
2458             if ( !m_rowHeights.IsEmpty() )
2459             {
2460                 m_rowHeights.Insert( m_defaultRowHeight, pos, numRows );
2461                 m_rowBottoms.Insert( 0, pos, numRows );
2462
2463                 int bottom = 0;
2464                 if ( pos > 0 )
2465                     bottom = m_rowBottoms[pos - 1];
2466
2467                 for ( i = pos; i < m_numRows; i++ )
2468                 {
2469                     bottom += m_rowHeights[i];
2470                     m_rowBottoms[i] = bottom;
2471                 }
2472             }
2473
2474             if ( m_currentCellCoords == wxGridNoCellCoords )
2475             {
2476                 // if we have just inserted cols into an empty grid the current
2477                 // cell will be undefined...
2478                 //
2479                 SetCurrentCell( 0, 0 );
2480             }
2481
2482             if ( m_selection )
2483                 m_selection->UpdateRows( pos, numRows );
2484             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2485             if (attrProvider)
2486                 attrProvider->UpdateAttrRows( pos, numRows );
2487
2488             if ( !GetBatchCount() )
2489             {
2490                 CalcDimensions();
2491                 m_rowLabelWin->Refresh();
2492             }
2493         }
2494         result = true;
2495         break;
2496
2497         case wxGRIDTABLE_NOTIFY_ROWS_APPENDED:
2498         {
2499             int numRows = msg.GetCommandInt();
2500             int oldNumRows = m_numRows;
2501             m_numRows += numRows;
2502
2503             if ( !m_rowHeights.IsEmpty() )
2504             {
2505                 m_rowHeights.Add( m_defaultRowHeight, numRows );
2506                 m_rowBottoms.Add( 0, numRows );
2507
2508                 int bottom = 0;
2509                 if ( oldNumRows > 0 )
2510                     bottom = m_rowBottoms[oldNumRows - 1];
2511
2512                 for ( i = oldNumRows; i < m_numRows; i++ )
2513                 {
2514                     bottom += m_rowHeights[i];
2515                     m_rowBottoms[i] = bottom;
2516                 }
2517             }
2518
2519             if ( m_currentCellCoords == wxGridNoCellCoords )
2520             {
2521                 // if we have just inserted cols into an empty grid the current
2522                 // cell will be undefined...
2523                 //
2524                 SetCurrentCell( 0, 0 );
2525             }
2526
2527             if ( !GetBatchCount() )
2528             {
2529                 CalcDimensions();
2530                 m_rowLabelWin->Refresh();
2531             }
2532         }
2533         result = true;
2534         break;
2535
2536         case wxGRIDTABLE_NOTIFY_ROWS_DELETED:
2537         {
2538             size_t pos = msg.GetCommandInt();
2539             int numRows = msg.GetCommandInt2();
2540             m_numRows -= numRows;
2541
2542             if ( !m_rowHeights.IsEmpty() )
2543             {
2544                 m_rowHeights.RemoveAt( pos, numRows );
2545                 m_rowBottoms.RemoveAt( pos, numRows );
2546
2547                 int h = 0;
2548                 for ( i = 0; i < m_numRows; i++ )
2549                 {
2550                     h += m_rowHeights[i];
2551                     m_rowBottoms[i] = h;
2552                 }
2553             }
2554
2555             if ( !m_numRows )
2556             {
2557                 m_currentCellCoords = wxGridNoCellCoords;
2558             }
2559             else
2560             {
2561                 if ( m_currentCellCoords.GetRow() >= m_numRows )
2562                     m_currentCellCoords.Set( 0, 0 );
2563             }
2564
2565             if ( m_selection )
2566                 m_selection->UpdateRows( pos, -((int)numRows) );
2567             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2568             if (attrProvider)
2569             {
2570                 attrProvider->UpdateAttrRows( pos, -((int)numRows) );
2571
2572 // ifdef'd out following patch from Paul Gammans
2573 #if 0
2574                 // No need to touch column attributes, unless we
2575                 // removed _all_ rows, in this case, we remove
2576                 // all column attributes.
2577                 // I hate to do this here, but the
2578                 // needed data is not available inside UpdateAttrRows.
2579                 if ( !GetNumberRows() )
2580                     attrProvider->UpdateAttrCols( 0, -GetNumberCols() );
2581 #endif
2582             }
2583
2584             if ( !GetBatchCount() )
2585             {
2586                 CalcDimensions();
2587                 m_rowLabelWin->Refresh();
2588             }
2589         }
2590         result = true;
2591         break;
2592
2593         case wxGRIDTABLE_NOTIFY_COLS_INSERTED:
2594         {
2595             size_t pos = msg.GetCommandInt();
2596             int numCols = msg.GetCommandInt2();
2597             m_numCols += numCols;
2598
2599             if ( m_useNativeHeader )
2600                 GetGridColHeader()->SetColumnCount(m_numCols);
2601
2602             if ( !m_colAt.IsEmpty() )
2603             {
2604                 //Shift the column IDs
2605                 int i;
2606                 for ( i = 0; i < m_numCols - numCols; i++ )
2607                 {
2608                     if ( m_colAt[i] >= (int)pos )
2609                         m_colAt[i] += numCols;
2610                 }
2611
2612                 m_colAt.Insert( pos, pos, numCols );
2613
2614                 //Set the new columns' positions
2615                 for ( i = pos + 1; i < (int)pos + numCols; i++ )
2616                 {
2617                     m_colAt[i] = i;
2618                 }
2619             }
2620
2621             if ( !m_colWidths.IsEmpty() )
2622             {
2623                 m_colWidths.Insert( m_defaultColWidth, pos, numCols );
2624                 m_colRights.Insert( 0, pos, numCols );
2625
2626                 int right = 0;
2627                 if ( pos > 0 )
2628                     right = m_colRights[GetColAt( pos - 1 )];
2629
2630                 int colPos;
2631                 for ( colPos = pos; colPos < m_numCols; colPos++ )
2632                 {
2633                     i = GetColAt( colPos );
2634
2635                     right += m_colWidths[i];
2636                     m_colRights[i] = right;
2637                 }
2638             }
2639
2640             if ( m_currentCellCoords == wxGridNoCellCoords )
2641             {
2642                 // if we have just inserted cols into an empty grid the current
2643                 // cell will be undefined...
2644                 //
2645                 SetCurrentCell( 0, 0 );
2646             }
2647
2648             if ( m_selection )
2649                 m_selection->UpdateCols( pos, numCols );
2650             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2651             if (attrProvider)
2652                 attrProvider->UpdateAttrCols( pos, numCols );
2653             if ( !GetBatchCount() )
2654             {
2655                 CalcDimensions();
2656                 m_colWindow->Refresh();
2657             }
2658         }
2659         result = true;
2660         break;
2661
2662         case wxGRIDTABLE_NOTIFY_COLS_APPENDED:
2663         {
2664             int numCols = msg.GetCommandInt();
2665             int oldNumCols = m_numCols;
2666             m_numCols += numCols;
2667             if ( m_useNativeHeader )
2668                 GetGridColHeader()->SetColumnCount(m_numCols);
2669
2670             if ( !m_colAt.IsEmpty() )
2671             {
2672                 m_colAt.Add( 0, numCols );
2673
2674                 //Set the new columns' positions
2675                 int i;
2676                 for ( i = oldNumCols; i < m_numCols; i++ )
2677                 {
2678                     m_colAt[i] = i;
2679                 }
2680             }
2681
2682             if ( !m_colWidths.IsEmpty() )
2683             {
2684                 m_colWidths.Add( m_defaultColWidth, numCols );
2685                 m_colRights.Add( 0, numCols );
2686
2687                 int right = 0;
2688                 if ( oldNumCols > 0 )
2689                     right = m_colRights[GetColAt( oldNumCols - 1 )];
2690
2691                 int colPos;
2692                 for ( colPos = oldNumCols; colPos < m_numCols; colPos++ )
2693                 {
2694                     i = GetColAt( colPos );
2695
2696                     right += m_colWidths[i];
2697                     m_colRights[i] = right;
2698                 }
2699             }
2700
2701             if ( m_currentCellCoords == wxGridNoCellCoords )
2702             {
2703                 // if we have just inserted cols into an empty grid the current
2704                 // cell will be undefined...
2705                 //
2706                 SetCurrentCell( 0, 0 );
2707             }
2708             if ( !GetBatchCount() )
2709             {
2710                 CalcDimensions();
2711                 m_colWindow->Refresh();
2712             }
2713         }
2714         result = true;
2715         break;
2716
2717         case wxGRIDTABLE_NOTIFY_COLS_DELETED:
2718         {
2719             size_t pos = msg.GetCommandInt();
2720             int numCols = msg.GetCommandInt2();
2721             m_numCols -= numCols;
2722             if ( m_useNativeHeader )
2723                 GetGridColHeader()->SetColumnCount(m_numCols);
2724
2725             if ( !m_colAt.IsEmpty() )
2726             {
2727                 int colID = GetColAt( pos );
2728
2729                 m_colAt.RemoveAt( pos, numCols );
2730
2731                 //Shift the column IDs
2732                 int colPos;
2733                 for ( colPos = 0; colPos < m_numCols; colPos++ )
2734                 {
2735                     if ( m_colAt[colPos] > colID )
2736                         m_colAt[colPos] -= numCols;
2737                 }
2738             }
2739
2740             if ( !m_colWidths.IsEmpty() )
2741             {
2742                 m_colWidths.RemoveAt( pos, numCols );
2743                 m_colRights.RemoveAt( pos, numCols );
2744
2745                 int w = 0;
2746                 int colPos;
2747                 for ( colPos = 0; colPos < m_numCols; colPos++ )
2748                 {
2749                     i = GetColAt( colPos );
2750
2751                     w += m_colWidths[i];
2752                     m_colRights[i] = w;
2753                 }
2754             }
2755
2756             if ( !m_numCols )
2757             {
2758                 m_currentCellCoords = wxGridNoCellCoords;
2759             }
2760             else
2761             {
2762                 if ( m_currentCellCoords.GetCol() >= m_numCols )
2763                   m_currentCellCoords.Set( 0, 0 );
2764             }
2765
2766             if ( m_selection )
2767                 m_selection->UpdateCols( pos, -((int)numCols) );
2768             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
2769             if (attrProvider)
2770             {
2771                 attrProvider->UpdateAttrCols( pos, -((int)numCols) );
2772
2773 // ifdef'd out following patch from Paul Gammans
2774 #if 0
2775                 // No need to touch row attributes, unless we
2776                 // removed _all_ columns, in this case, we remove
2777                 // all row attributes.
2778                 // I hate to do this here, but the
2779                 // needed data is not available inside UpdateAttrCols.
2780                 if ( !GetNumberCols() )
2781                     attrProvider->UpdateAttrRows( 0, -GetNumberRows() );
2782 #endif
2783             }
2784
2785             if ( !GetBatchCount() )
2786             {
2787                 CalcDimensions();
2788                 m_colWindow->Refresh();
2789             }
2790         }
2791         result = true;
2792         break;
2793     }
2794
2795     if (result && !GetBatchCount() )
2796         m_gridWin->Refresh();
2797
2798     return result;
2799 }
2800
2801 wxArrayInt wxGrid::CalcRowLabelsExposed( const wxRegion& reg ) const
2802 {
2803     wxRegionIterator iter( reg );
2804     wxRect r;
2805
2806     wxArrayInt  rowlabels;
2807
2808     int top, bottom;
2809     while ( iter )
2810     {
2811         r = iter.GetRect();
2812
2813         // TODO: remove this when we can...
2814         // There is a bug in wxMotif that gives garbage update
2815         // rectangles if you jump-scroll a long way by clicking the
2816         // scrollbar with middle button.  This is a work-around
2817         //
2818 #if defined(__WXMOTIF__)
2819         int cw, ch;
2820         m_gridWin->GetClientSize( &cw, &ch );
2821         if ( r.GetTop() > ch )
2822             r.SetTop( 0 );
2823         r.SetBottom( wxMin( r.GetBottom(), ch ) );
2824 #endif
2825
2826         // logical bounds of update region
2827         //
2828         int dummy;
2829         CalcUnscrolledPosition( 0, r.GetTop(), &dummy, &top );
2830         CalcUnscrolledPosition( 0, r.GetBottom(), &dummy, &bottom );
2831
2832         // find the row labels within these bounds
2833         //
2834         int row;
2835         for ( row = internalYToRow(top); row < m_numRows; row++ )
2836         {
2837             if ( GetRowBottom(row) < top )
2838                 continue;
2839
2840             if ( GetRowTop(row) > bottom )
2841                 break;
2842
2843             rowlabels.Add( row );
2844         }
2845
2846         ++iter;
2847     }
2848
2849     return rowlabels;
2850 }
2851
2852 wxArrayInt wxGrid::CalcColLabelsExposed( const wxRegion& reg ) const
2853 {
2854     wxRegionIterator iter( reg );
2855     wxRect r;
2856
2857     wxArrayInt colLabels;
2858
2859     int left, right;
2860     while ( iter )
2861     {
2862         r = iter.GetRect();
2863
2864         // TODO: remove this when we can...
2865         // There is a bug in wxMotif that gives garbage update
2866         // rectangles if you jump-scroll a long way by clicking the
2867         // scrollbar with middle button.  This is a work-around
2868         //
2869 #if defined(__WXMOTIF__)
2870         int cw, ch;
2871         m_gridWin->GetClientSize( &cw, &ch );
2872         if ( r.GetLeft() > cw )
2873             r.SetLeft( 0 );
2874         r.SetRight( wxMin( r.GetRight(), cw ) );
2875 #endif
2876
2877         // logical bounds of update region
2878         //
2879         int dummy;
2880         CalcUnscrolledPosition( r.GetLeft(), 0, &left, &dummy );
2881         CalcUnscrolledPosition( r.GetRight(), 0, &right, &dummy );
2882
2883         // find the cells within these bounds
2884         //
2885         int col;
2886         int colPos;
2887         for ( colPos = GetColPos( internalXToCol(left) ); colPos < m_numCols; colPos++ )
2888         {
2889             col = GetColAt( colPos );
2890
2891             if ( GetColRight(col) < left )
2892                 continue;
2893
2894             if ( GetColLeft(col) > right )
2895                 break;
2896
2897             colLabels.Add( col );
2898         }
2899
2900         ++iter;
2901     }
2902
2903     return colLabels;
2904 }
2905
2906 wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg ) const
2907 {
2908     wxRegionIterator iter( reg );
2909     wxRect r;
2910
2911     wxGridCellCoordsArray  cellsExposed;
2912
2913     int left, top, right, bottom;
2914     while ( iter )
2915     {
2916         r = iter.GetRect();
2917
2918         // TODO: remove this when we can...
2919         // There is a bug in wxMotif that gives garbage update
2920         // rectangles if you jump-scroll a long way by clicking the
2921         // scrollbar with middle button.  This is a work-around
2922         //
2923 #if defined(__WXMOTIF__)
2924         int cw, ch;
2925         m_gridWin->GetClientSize( &cw, &ch );
2926         if ( r.GetTop() > ch ) r.SetTop( 0 );
2927         if ( r.GetLeft() > cw ) r.SetLeft( 0 );
2928         r.SetRight( wxMin( r.GetRight(), cw ) );
2929         r.SetBottom( wxMin( r.GetBottom(), ch ) );
2930 #endif
2931
2932         // logical bounds of update region
2933         //
2934         CalcUnscrolledPosition( r.GetLeft(), r.GetTop(), &left, &top );
2935         CalcUnscrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
2936
2937         // find the cells within these bounds
2938         wxArrayInt cols;
2939         for ( int row = internalYToRow(top); row < m_numRows; row++ )
2940         {
2941             if ( GetRowBottom(row) <= top )
2942                 continue;
2943
2944             if ( GetRowTop(row) > bottom )
2945                 break;
2946
2947             // add all dirty cells in this row: notice that the columns which
2948             // are dirty don't depend on the row so we compute them only once
2949             // for the first dirty row and then reuse for all the next ones
2950             if ( cols.empty() )
2951             {
2952                 // do determine the dirty columns
2953                 for ( int pos = XToPos(left); pos <= XToPos(right); pos++ )
2954                     cols.push_back(GetColAt(pos));
2955
2956                 // if there are no dirty columns at all, nothing to do
2957                 if ( cols.empty() )
2958                     break;
2959             }
2960
2961             const size_t count = cols.size();
2962             for ( size_t n = 0; n < count; n++ )
2963                 cellsExposed.Add(wxGridCellCoords(row, cols[n]));
2964         }
2965
2966         ++iter;
2967     }
2968
2969     return cellsExposed;
2970 }
2971
2972
2973 void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
2974 {
2975     int x, y, row;
2976     wxPoint pos( event.GetPosition() );
2977     CalcUnscrolledPosition( pos.x, pos.y, &x, &y );
2978
2979     if ( event.Dragging() )
2980     {
2981         if (!m_isDragging)
2982         {
2983             m_isDragging = true;
2984             m_rowLabelWin->CaptureMouse();
2985         }
2986
2987         if ( event.LeftIsDown() )
2988         {
2989             switch ( m_cursorMode )
2990             {
2991                 case WXGRID_CURSOR_RESIZE_ROW:
2992                 {
2993                     int cw, ch, left, dummy;
2994                     m_gridWin->GetClientSize( &cw, &ch );
2995                     CalcUnscrolledPosition( 0, 0, &left, &dummy );
2996
2997                     wxClientDC dc( m_gridWin );
2998                     PrepareDC( dc );
2999                     y = wxMax( y,
3000                                GetRowTop(m_dragRowOrCol) +
3001                                GetRowMinimalHeight(m_dragRowOrCol) );
3002                     dc.SetLogicalFunction(wxINVERT);
3003                     if ( m_dragLastPos >= 0 )
3004                     {
3005                         dc.DrawLine( left, m_dragLastPos, left+cw, m_dragLastPos );
3006                     }
3007                     dc.DrawLine( left, y, left+cw, y );
3008                     m_dragLastPos = y;
3009                 }
3010                 break;
3011
3012                 case WXGRID_CURSOR_SELECT_ROW:
3013                 {
3014                     if ( (row = YToRow( y )) >= 0 )
3015                     {
3016                         if ( m_selection )
3017                             m_selection->SelectRow(row, event);
3018                     }
3019                 }
3020                 break;
3021
3022                 // default label to suppress warnings about "enumeration value
3023                 // 'xxx' not handled in switch
3024                 default:
3025                     break;
3026             }
3027         }
3028         return;
3029     }
3030
3031     if ( m_isDragging && (event.Entering() || event.Leaving()) )
3032         return;
3033
3034     if (m_isDragging)
3035     {
3036         if (m_rowLabelWin->HasCapture())
3037             m_rowLabelWin->ReleaseMouse();
3038         m_isDragging = false;
3039     }
3040
3041     // ------------ Entering or leaving the window
3042     //
3043     if ( event.Entering() || event.Leaving() )
3044     {
3045         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin);
3046     }
3047
3048     // ------------ Left button pressed
3049     //
3050     else if ( event.LeftDown() )
3051     {
3052         row = YToEdgeOfRow(y);
3053         if ( row != wxNOT_FOUND && CanDragRowSize(row) )
3054         {
3055             ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, m_rowLabelWin);
3056         }
3057         else // not a request to start resizing
3058         {
3059             row = YToRow(y);
3060             if ( row >= 0 &&
3061                  !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, row, -1, event ) )
3062             {
3063                 if ( !event.ShiftDown() && !event.CmdDown() )
3064                     ClearSelection();
3065                 if ( m_selection )
3066                 {
3067                     if ( event.ShiftDown() )
3068                     {
3069                         m_selection->SelectBlock
3070                                      (
3071                                         m_currentCellCoords.GetRow(), 0,
3072                                         row, GetNumberCols() - 1,
3073                                         event
3074                                      );
3075                     }
3076                     else
3077                     {
3078                         m_selection->SelectRow(row, event);
3079                     }
3080                 }
3081
3082                 ChangeCursorMode(WXGRID_CURSOR_SELECT_ROW, m_rowLabelWin);
3083             }
3084         }
3085     }
3086
3087     // ------------ Left double click
3088     //
3089     else if (event.LeftDClick() )
3090     {
3091         row = YToEdgeOfRow(y);
3092         if ( row != wxNOT_FOUND && CanDragRowSize(row) )
3093         {
3094             // adjust row height depending on label text
3095             //
3096             // TODO: generate RESIZING event, see #10754
3097             AutoSizeRowLabelSize( row );
3098
3099             SendGridSizeEvent(wxEVT_GRID_ROW_SIZE, row, -1, event);
3100
3101             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3102             m_dragLastPos = -1;
3103         }
3104         else // not on row separator or it's not resizeable
3105         {
3106             row = YToRow(y);
3107             if ( row >=0 &&
3108                  !SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, row, -1, event ) )
3109             {
3110                 // no default action at the moment
3111             }
3112         }
3113     }
3114
3115     // ------------ Left button released
3116     //
3117     else if ( event.LeftUp() )
3118     {
3119         if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW )
3120             DoEndDragResizeRow(event);
3121
3122         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin);
3123         m_dragLastPos = -1;
3124     }
3125
3126     // ------------ Right button down
3127     //
3128     else if ( event.RightDown() )
3129     {
3130         row = YToRow(y);
3131         if ( row >=0 &&
3132              !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, row, -1, event ) )
3133         {
3134             // no default action at the moment
3135         }
3136     }
3137
3138     // ------------ Right double click
3139     //
3140     else if ( event.RightDClick() )
3141     {
3142         row = YToRow(y);
3143         if ( row >= 0 &&
3144              !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, row, -1, event ) )
3145         {
3146             // no default action at the moment
3147         }
3148     }
3149
3150     // ------------ No buttons down and mouse moving
3151     //
3152     else if ( event.Moving() )
3153     {
3154         m_dragRowOrCol = YToEdgeOfRow( y );
3155         if ( m_dragRowOrCol != wxNOT_FOUND )
3156         {
3157             if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3158             {
3159                 if ( CanDragRowSize(m_dragRowOrCol) )
3160                     ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, m_rowLabelWin, false);
3161             }
3162         }
3163         else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
3164         {
3165             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin, false);
3166         }
3167     }
3168 }
3169
3170 void wxGrid::UpdateColumnSortingIndicator(int col)
3171 {
3172     wxCHECK_RET( col != wxNOT_FOUND, "invalid column index" );
3173
3174     if ( m_useNativeHeader )
3175         GetGridColHeader()->UpdateColumn(col);
3176     else if ( m_nativeColumnLabels )
3177         m_colWindow->Refresh();
3178     //else: sorting indicator display not yet implemented in grid version
3179 }
3180
3181 void wxGrid::SetSortingColumn(int col, bool ascending)
3182 {
3183     if ( col == m_sortCol )
3184     {
3185         // we are already using this column for sorting (or not sorting at all)
3186         // but we might still change the sorting order, check for it
3187         if ( m_sortCol != wxNOT_FOUND && ascending != m_sortIsAscending )
3188         {
3189             m_sortIsAscending = ascending;
3190
3191             UpdateColumnSortingIndicator(m_sortCol);
3192         }
3193     }
3194     else // we're changing the column used for sorting
3195     {
3196         const int sortColOld = m_sortCol;
3197
3198         // change it before updating the column as we want GetSortingColumn()
3199         // to return the correct new value
3200         m_sortCol = col;
3201
3202         if ( sortColOld != wxNOT_FOUND )
3203             UpdateColumnSortingIndicator(sortColOld);
3204
3205         if ( m_sortCol != wxNOT_FOUND )
3206         {
3207             m_sortIsAscending = ascending;
3208             UpdateColumnSortingIndicator(m_sortCol);
3209         }
3210     }
3211 }
3212
3213 void wxGrid::DoColHeaderClick(int col)
3214 {
3215     // we consider that the grid was resorted if this event is processed and
3216     // not vetoed
3217     if ( SendEvent(wxEVT_GRID_COL_SORT, -1, col) == 1 )
3218     {
3219         SetSortingColumn(col, IsSortingBy(col) ? !m_sortIsAscending : true);
3220         Refresh();
3221     }
3222 }
3223
3224 void wxGrid::DoStartResizeCol(int col)
3225 {
3226     m_dragRowOrCol = col;
3227     m_dragLastPos = -1;
3228     DoUpdateResizeColWidth(GetColWidth(m_dragRowOrCol));
3229 }
3230
3231 void wxGrid::DoUpdateResizeCol(int x)
3232 {
3233     int cw, ch, dummy, top;
3234     m_gridWin->GetClientSize( &cw, &ch );
3235     CalcUnscrolledPosition( 0, 0, &dummy, &top );
3236
3237     wxClientDC dc( m_gridWin );
3238     PrepareDC( dc );
3239
3240     x = wxMax( x, GetColLeft(m_dragRowOrCol) + GetColMinimalWidth(m_dragRowOrCol));
3241     dc.SetLogicalFunction(wxINVERT);
3242     if ( m_dragLastPos >= 0 )
3243     {
3244         dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top + ch );
3245     }
3246     dc.DrawLine( x, top, x, top + ch );
3247     m_dragLastPos = x;
3248 }
3249
3250 void wxGrid::DoUpdateResizeColWidth(int w)
3251 {
3252     DoUpdateResizeCol(GetColLeft(m_dragRowOrCol) + w);
3253 }
3254
3255 void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
3256 {
3257     int x, y;
3258     wxPoint pos( event.GetPosition() );
3259     CalcUnscrolledPosition( pos.x, pos.y, &x, &y );
3260
3261     int col = XToCol(x);
3262     if ( event.Dragging() )
3263     {
3264         if (!m_isDragging)
3265         {
3266             m_isDragging = true;
3267             GetColLabelWindow()->CaptureMouse();
3268
3269             if ( m_cursorMode == WXGRID_CURSOR_MOVE_COL && col != -1 )
3270                 DoStartMoveCol(col);
3271         }
3272
3273         if ( event.LeftIsDown() )
3274         {
3275             switch ( m_cursorMode )
3276             {
3277                 case WXGRID_CURSOR_RESIZE_COL:
3278                 DoUpdateResizeCol(x);
3279                 break;
3280
3281                 case WXGRID_CURSOR_SELECT_COL:
3282                 {
3283                     if ( col != -1 )
3284                     {
3285                         if ( m_selection )
3286                             m_selection->SelectCol(col, event);
3287                     }
3288                 }
3289                 break;
3290
3291                 case WXGRID_CURSOR_MOVE_COL:
3292                 {
3293                     int posNew = XToPos(x);
3294                     int colNew = GetColAt(posNew);
3295
3296                     // determine the position of the drop marker
3297                     int markerX;
3298                     if ( x >= GetColLeft(colNew) + (GetColWidth(colNew) / 2) )
3299                         markerX = GetColRight(colNew);
3300                     else
3301                         markerX = GetColLeft(colNew);
3302
3303                     if ( markerX != m_dragLastPos )
3304                     {
3305                         wxClientDC dc( GetColLabelWindow() );
3306                         DoPrepareDC(dc);
3307
3308                         int cw, ch;
3309                         GetColLabelWindow()->GetClientSize( &cw, &ch );
3310
3311                         markerX++;
3312
3313                         //Clean up the last indicator
3314                         if ( m_dragLastPos >= 0 )
3315                         {
3316                             wxPen pen( GetColLabelWindow()->GetBackgroundColour(), 2 );
3317                             dc.SetPen(pen);
3318                             dc.DrawLine( m_dragLastPos + 1, 0, m_dragLastPos + 1, ch );
3319                             dc.SetPen(wxNullPen);
3320
3321                             if ( XToCol( m_dragLastPos ) != -1 )
3322                                 DrawColLabel( dc, XToCol( m_dragLastPos ) );
3323                         }
3324
3325                         const wxColour *color;
3326                         //Moving to the same place? Don't draw a marker
3327                         if ( colNew == m_dragRowOrCol )
3328                             color = wxLIGHT_GREY;
3329                         else
3330                             color = wxBLUE;
3331
3332                         //Draw the marker
3333                         wxPen pen( *color, 2 );
3334                         dc.SetPen(pen);
3335
3336                         dc.DrawLine( markerX, 0, markerX, ch );
3337
3338                         dc.SetPen(wxNullPen);
3339
3340                         m_dragLastPos = markerX - 1;
3341                     }
3342                 }
3343                 break;
3344
3345                 // default label to suppress warnings about "enumeration value
3346                 // 'xxx' not handled in switch
3347                 default:
3348                     break;
3349             }
3350         }
3351         return;
3352     }
3353
3354     if ( m_isDragging && (event.Entering() || event.Leaving()) )
3355         return;
3356
3357     if (m_isDragging)
3358     {
3359         if (GetColLabelWindow()->HasCapture())
3360             GetColLabelWindow()->ReleaseMouse();
3361         m_isDragging = false;
3362     }
3363
3364     // ------------ Entering or leaving the window
3365     //
3366     if ( event.Entering() || event.Leaving() )
3367     {
3368         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3369     }
3370
3371     // ------------ Left button pressed
3372     //
3373     else if ( event.LeftDown() )
3374     {
3375         int col = XToEdgeOfCol(x);
3376         if ( col != wxNOT_FOUND && CanDragColSize(col) )
3377         {
3378             ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, GetColLabelWindow());
3379         }
3380         else // not a request to start resizing
3381         {
3382             col = XToCol(x);
3383             if ( col >= 0 &&
3384                  !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, -1, col, event ) )
3385             {
3386                 if ( m_canDragColMove )
3387                 {
3388                     //Show button as pressed
3389                     wxClientDC dc( GetColLabelWindow() );
3390                     int colLeft = GetColLeft( col );
3391                     int colRight = GetColRight( col ) - 1;
3392                     dc.SetPen( wxPen( GetColLabelWindow()->GetBackgroundColour(), 1 ) );
3393                     dc.DrawLine( colLeft, 1, colLeft, m_colLabelHeight-1 );
3394                     dc.DrawLine( colLeft, 1, colRight, 1 );
3395
3396                     ChangeCursorMode(WXGRID_CURSOR_MOVE_COL, GetColLabelWindow());
3397                 }
3398                 else
3399                 {
3400                     if ( !event.ShiftDown() && !event.CmdDown() )
3401                         ClearSelection();
3402                     if ( m_selection )
3403                     {
3404                         if ( event.ShiftDown() )
3405                         {
3406                             m_selection->SelectBlock
3407                                          (
3408                                             0, m_currentCellCoords.GetCol(),
3409                                             GetNumberRows() - 1, col,
3410                                             event
3411                                          );
3412                         }
3413                         else
3414                         {
3415                             m_selection->SelectCol(col, event);
3416                         }
3417                     }
3418
3419                     ChangeCursorMode(WXGRID_CURSOR_SELECT_COL, GetColLabelWindow());
3420                 }
3421             }
3422         }
3423     }
3424
3425     // ------------ Left double click
3426     //
3427     if ( event.LeftDClick() )
3428     {
3429         const int colEdge = XToEdgeOfCol(x);
3430         if ( colEdge == -1 )
3431         {
3432             if ( col >= 0 &&
3433                  ! SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, -1, col, event ) )
3434             {
3435                 // no default action at the moment
3436             }
3437         }
3438         else
3439         {
3440             // adjust column width depending on label text
3441             //
3442             // TODO: generate RESIZING event, see #10754
3443             AutoSizeColLabelSize( colEdge );
3444
3445             SendGridSizeEvent(wxEVT_GRID_COL_SIZE, -1, colEdge, event);
3446
3447             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3448             m_dragLastPos = -1;
3449         }
3450     }
3451
3452     // ------------ Left button released
3453     //
3454     else if ( event.LeftUp() )
3455     {
3456         switch ( m_cursorMode )
3457         {
3458             case WXGRID_CURSOR_RESIZE_COL:
3459                 DoEndDragResizeCol(event);
3460                 break;
3461
3462             case WXGRID_CURSOR_MOVE_COL:
3463                 if ( m_dragLastPos == -1 || col == m_dragRowOrCol )
3464                 {
3465                     // the column didn't actually move anywhere
3466                     if ( col != -1 )
3467                         DoColHeaderClick(col);
3468                     m_colWindow->Refresh();   // "unpress" the column
3469                 }
3470                 else
3471                 {
3472                     DoEndMoveCol(XToPos(x));
3473                 }
3474                 break;
3475
3476             case WXGRID_CURSOR_SELECT_COL:
3477             case WXGRID_CURSOR_SELECT_CELL:
3478             case WXGRID_CURSOR_RESIZE_ROW:
3479             case WXGRID_CURSOR_SELECT_ROW:
3480                 if ( col != -1 )
3481                     DoColHeaderClick(col);
3482                 break;
3483         }
3484
3485         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
3486         m_dragLastPos = -1;
3487     }
3488
3489     // ------------ Right button down
3490     //
3491     else if ( event.RightDown() )
3492     {
3493         if ( col >= 0 &&
3494              !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, -1, col, event ) )
3495         {
3496             // no default action at the moment
3497         }
3498     }
3499
3500     // ------------ Right double click
3501     //
3502     else if ( event.RightDClick() )
3503     {
3504         if ( col >= 0 &&
3505              !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, -1, col, event ) )
3506         {
3507             // no default action at the moment
3508         }
3509     }
3510
3511     // ------------ No buttons down and mouse moving
3512     //
3513     else if ( event.Moving() )
3514     {
3515         m_dragRowOrCol = XToEdgeOfCol( x );
3516         if ( m_dragRowOrCol >= 0 )
3517         {
3518             if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3519             {
3520                 if ( CanDragColSize(m_dragRowOrCol) )
3521                     ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, GetColLabelWindow(), false);
3522             }
3523         }
3524         else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
3525         {
3526             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow(), false);
3527         }
3528     }
3529 }
3530
3531 void wxGrid::ProcessCornerLabelMouseEvent( wxMouseEvent& event )
3532 {
3533     if ( event.LeftDown() )
3534     {
3535         // indicate corner label by having both row and
3536         // col args == -1
3537         //
3538         if ( !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, -1, -1, event ) )
3539         {
3540             SelectAll();
3541         }
3542     }
3543     else if ( event.LeftDClick() )
3544     {
3545         SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, -1, -1, event );
3546     }
3547     else if ( event.RightDown() )
3548     {
3549         if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, -1, -1, event ) )
3550         {
3551             // no default action at the moment
3552         }
3553     }
3554     else if ( event.RightDClick() )
3555     {
3556         if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, -1, -1, event ) )
3557         {
3558             // no default action at the moment
3559         }
3560     }
3561 }
3562
3563 void wxGrid::CancelMouseCapture()
3564 {
3565     // cancel operation currently in progress, whatever it is
3566     if ( m_winCapture )
3567     {
3568         m_isDragging = false;
3569         m_startDragPos = wxDefaultPosition;
3570
3571         m_cursorMode = WXGRID_CURSOR_SELECT_CELL;
3572         m_winCapture->SetCursor( *wxSTANDARD_CURSOR );
3573         m_winCapture = NULL;
3574
3575         // remove traces of whatever we drew on screen
3576         Refresh();
3577     }
3578 }
3579
3580 void wxGrid::ChangeCursorMode(CursorMode mode,
3581                               wxWindow *win,
3582                               bool captureMouse)
3583 {
3584 #if wxUSE_LOG_TRACE
3585     static const wxChar *const cursorModes[] =
3586     {
3587         wxT("SELECT_CELL"),
3588         wxT("RESIZE_ROW"),
3589         wxT("RESIZE_COL"),
3590         wxT("SELECT_ROW"),
3591         wxT("SELECT_COL"),
3592         wxT("MOVE_COL"),
3593     };
3594
3595     wxLogTrace(wxT("grid"),
3596                wxT("wxGrid cursor mode (mouse capture for %s): %s -> %s"),
3597                win == m_colWindow ? wxT("colLabelWin")
3598                                   : win ? wxT("rowLabelWin")
3599                                         : wxT("gridWin"),
3600                cursorModes[m_cursorMode], cursorModes[mode]);
3601 #endif // wxUSE_LOG_TRACE
3602
3603     if ( mode == m_cursorMode &&
3604          win == m_winCapture &&
3605          captureMouse == (m_winCapture != NULL))
3606         return;
3607
3608     if ( !win )
3609     {
3610         // by default use the grid itself
3611         win = m_gridWin;
3612     }
3613
3614     if ( m_winCapture )
3615     {
3616         m_winCapture->ReleaseMouse();
3617         m_winCapture = NULL;
3618     }
3619
3620     m_cursorMode = mode;
3621
3622     switch ( m_cursorMode )
3623     {
3624         case WXGRID_CURSOR_RESIZE_ROW:
3625             win->SetCursor( m_rowResizeCursor );
3626             break;
3627
3628         case WXGRID_CURSOR_RESIZE_COL:
3629             win->SetCursor( m_colResizeCursor );
3630             break;
3631
3632         case WXGRID_CURSOR_MOVE_COL:
3633             win->SetCursor( wxCursor(wxCURSOR_HAND) );
3634             break;
3635
3636         default:
3637             win->SetCursor( *wxSTANDARD_CURSOR );
3638             break;
3639     }
3640
3641     // we need to capture mouse when resizing
3642     bool resize = m_cursorMode == WXGRID_CURSOR_RESIZE_ROW ||
3643                   m_cursorMode == WXGRID_CURSOR_RESIZE_COL;
3644
3645     if ( captureMouse && resize )
3646     {
3647         win->CaptureMouse();
3648         m_winCapture = win;
3649     }
3650 }
3651
3652 // ----------------------------------------------------------------------------
3653 // grid mouse event processing
3654 // ----------------------------------------------------------------------------
3655
3656 void
3657 wxGrid::DoGridCellDrag(wxMouseEvent& event,
3658                        const wxGridCellCoords& coords,
3659                        bool isFirstDrag)
3660 {
3661     if ( coords == wxGridNoCellCoords )
3662         return; // we're outside any valid cell
3663
3664     // Hide the edit control, so it won't interfere with drag-shrinking.
3665     if ( IsCellEditControlShown() )
3666     {
3667         HideCellEditControl();
3668         SaveEditControlValue();
3669     }
3670
3671     switch ( event.GetModifiers() )
3672     {
3673         case wxMOD_CMD:
3674             if ( m_selectedBlockCorner == wxGridNoCellCoords)
3675                 m_selectedBlockCorner = coords;
3676             UpdateBlockBeingSelected(m_selectedBlockCorner, coords);
3677             break;
3678
3679         case wxMOD_NONE:
3680             if ( CanDragCell() )
3681             {
3682                 if ( isFirstDrag )
3683                 {
3684                     if ( m_selectedBlockCorner == wxGridNoCellCoords)
3685                         m_selectedBlockCorner = coords;
3686
3687                     SendEvent(wxEVT_GRID_CELL_BEGIN_DRAG, coords, event);
3688                     return;
3689                 }
3690             }
3691
3692             UpdateBlockBeingSelected(m_currentCellCoords, coords);
3693             break;
3694
3695         default:
3696             // we don't handle the other key modifiers
3697             event.Skip();
3698     }
3699 }
3700
3701 void wxGrid::DoGridLineDrag(wxMouseEvent& event, const wxGridOperations& oper)
3702 {
3703     wxClientDC dc(m_gridWin);
3704     PrepareDC(dc);
3705     dc.SetLogicalFunction(wxINVERT);
3706
3707     const wxRect rectWin(CalcUnscrolledPosition(wxPoint(0, 0)),
3708                          m_gridWin->GetClientSize());
3709
3710     // erase the previously drawn line, if any
3711     if ( m_dragLastPos >= 0 )
3712         oper.DrawParallelLineInRect(dc, rectWin, m_dragLastPos);
3713
3714     // we need the vertical position for rows and horizontal for columns here
3715     m_dragLastPos = oper.Dual().Select(CalcUnscrolledPosition(event.GetPosition()));
3716
3717     // don't allow resizing beneath the minimal size
3718     const int posMin = oper.GetLineStartPos(this, m_dragRowOrCol) +
3719                         oper.GetMinimalLineSize(this, m_dragRowOrCol);
3720     if ( m_dragLastPos < posMin )
3721         m_dragLastPos = posMin;
3722
3723     // and draw it at the new position
3724     oper.DrawParallelLineInRect(dc, rectWin, m_dragLastPos);
3725 }
3726
3727 void wxGrid::DoGridDragEvent(wxMouseEvent& event, const wxGridCellCoords& coords)
3728 {
3729     if ( !m_isDragging )
3730     {
3731         // Don't start doing anything until the mouse has been dragged far
3732         // enough
3733         const wxPoint& pt = event.GetPosition();
3734         if ( m_startDragPos == wxDefaultPosition )
3735         {
3736             m_startDragPos = pt;
3737             return;
3738         }
3739
3740         if ( abs(m_startDragPos.x - pt.x) <= DRAG_SENSITIVITY &&
3741                 abs(m_startDragPos.y - pt.y) <= DRAG_SENSITIVITY )
3742             return;
3743     }
3744
3745     const bool isFirstDrag = !m_isDragging;
3746     m_isDragging = true;
3747
3748     switch ( m_cursorMode )
3749     {
3750         case WXGRID_CURSOR_SELECT_CELL:
3751             DoGridCellDrag(event, coords, isFirstDrag);
3752             break;
3753
3754         case WXGRID_CURSOR_RESIZE_ROW:
3755             DoGridLineDrag(event, wxGridRowOperations());
3756             break;
3757
3758         case WXGRID_CURSOR_RESIZE_COL:
3759             DoGridLineDrag(event, wxGridColumnOperations());
3760             break;
3761
3762         default:
3763             event.Skip();
3764     }
3765
3766     if ( isFirstDrag )
3767     {
3768         wxASSERT_MSG( !m_winCapture, "shouldn't capture the mouse twice" );
3769
3770         m_winCapture = m_gridWin;
3771         m_winCapture->CaptureMouse();
3772     }
3773 }
3774
3775 void
3776 wxGrid::DoGridCellLeftDown(wxMouseEvent& event,
3777                            const wxGridCellCoords& coords,
3778                            const wxPoint& pos)
3779 {
3780     if ( SendEvent(wxEVT_GRID_CELL_LEFT_CLICK, coords, event) )
3781     {
3782         // event handled by user code, no need to do anything here
3783         return;
3784     }
3785
3786     if ( !event.CmdDown() )
3787         ClearSelection();
3788
3789     if ( event.ShiftDown() )
3790     {
3791         if ( m_selection )
3792         {
3793             m_selection->SelectBlock(m_currentCellCoords, coords, event);
3794             m_selectedBlockCorner = coords;
3795         }
3796     }
3797     else if ( XToEdgeOfCol(pos.x) < 0 && YToEdgeOfRow(pos.y) < 0 )
3798     {
3799         DisableCellEditControl();
3800         MakeCellVisible( coords );
3801
3802         if ( event.CmdDown() )
3803         {
3804             if ( m_selection )
3805             {
3806                 m_selection->ToggleCellSelection(coords, event);
3807             }
3808
3809             m_selectedBlockTopLeft = wxGridNoCellCoords;
3810             m_selectedBlockBottomRight = wxGridNoCellCoords;
3811             m_selectedBlockCorner = coords;
3812         }
3813         else
3814         {
3815             m_waitForSlowClick = m_currentCellCoords == coords &&
3816                                         coords != wxGridNoCellCoords;
3817             SetCurrentCell( coords );
3818         }
3819     }
3820 }
3821
3822 void
3823 wxGrid::DoGridCellLeftDClick(wxMouseEvent& event,
3824                              const wxGridCellCoords& coords,
3825                              const wxPoint& pos)
3826 {
3827     if ( XToEdgeOfCol(pos.x) < 0 && YToEdgeOfRow(pos.y) < 0 )
3828     {
3829         if ( !SendEvent(wxEVT_GRID_CELL_LEFT_DCLICK, coords, event) )
3830         {
3831             // we want double click to select a cell and start editing
3832             // (i.e. to behave in same way as sequence of two slow clicks):
3833             m_waitForSlowClick = true;
3834         }
3835     }
3836 }
3837
3838 void
3839 wxGrid::DoGridCellLeftUp(wxMouseEvent& event, const wxGridCellCoords& coords)
3840 {
3841     if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3842     {
3843         if (m_winCapture)
3844         {
3845             m_winCapture->ReleaseMouse();
3846             m_winCapture = NULL;
3847         }
3848
3849         if ( coords == m_currentCellCoords && m_waitForSlowClick && CanEnableCellControl() )
3850         {
3851             ClearSelection();
3852             EnableCellEditControl();
3853
3854             wxGridCellAttr *attr = GetCellAttr(coords);
3855             wxGridCellEditor *editor = attr->GetEditor(this, coords.GetRow(), coords.GetCol());
3856             editor->StartingClick();
3857             editor->DecRef();
3858             attr->DecRef();
3859
3860             m_waitForSlowClick = false;
3861         }
3862         else if ( m_selectedBlockTopLeft != wxGridNoCellCoords &&
3863              m_selectedBlockBottomRight != wxGridNoCellCoords )
3864         {
3865             if ( m_selection )
3866             {
3867                 m_selection->SelectBlock( m_selectedBlockTopLeft,
3868                                           m_selectedBlockBottomRight,
3869                                           event );
3870             }
3871
3872             m_selectedBlockTopLeft = wxGridNoCellCoords;
3873             m_selectedBlockBottomRight = wxGridNoCellCoords;
3874
3875             // Show the edit control, if it has been hidden for
3876             // drag-shrinking.
3877             ShowCellEditControl();
3878         }
3879     }
3880     else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW )
3881     {
3882         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3883         DoEndDragResizeRow(event);
3884     }
3885     else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_COL )
3886     {
3887         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3888         DoEndDragResizeCol(event);
3889     }
3890
3891     m_dragLastPos = -1;
3892 }
3893
3894 void
3895 wxGrid::DoGridMouseMoveEvent(wxMouseEvent& WXUNUSED(event),
3896                              const wxGridCellCoords& coords,
3897                              const wxPoint& pos)
3898 {
3899     if ( coords.GetRow() < 0 || coords.GetCol() < 0 )
3900     {
3901         // out of grid cell area
3902         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3903         return;
3904     }
3905
3906     int dragRow = YToEdgeOfRow( pos.y );
3907     int dragCol = XToEdgeOfCol( pos.x );
3908
3909     // Dragging on the corner of a cell to resize in both
3910     // directions is not implemented yet...
3911     //
3912     if ( dragRow >= 0 && dragCol >= 0 )
3913     {
3914         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3915         return;
3916     }
3917
3918     if ( dragRow >= 0 && CanDragGridSize() && CanDragRowSize(dragRow) )
3919     {
3920         if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3921         {
3922             m_dragRowOrCol = dragRow;
3923             ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, NULL, false);
3924         }
3925     }
3926     // When using the native header window we can only resize the columns by
3927     // dragging the dividers in it because we can't make it enter into the
3928     // column resizing mode programmatically
3929     else if ( dragCol >= 0 && !m_useNativeHeader &&
3930                 CanDragGridSize() && CanDragColSize(dragCol) )
3931     {
3932         if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
3933         {
3934             m_dragRowOrCol = dragCol;
3935             ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, NULL, false);
3936         }
3937     }
3938     else // Neither on a row or col edge
3939     {
3940         if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
3941         {
3942             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
3943         }
3944     }
3945 }
3946
3947 void wxGrid::ProcessGridCellMouseEvent(wxMouseEvent& event)
3948 {
3949     if ( event.Entering() || event.Leaving() )
3950     {
3951         // we don't care about these events but we must not reset m_isDragging
3952         // if they happen so return before anything else is done
3953         event.Skip();
3954         return;
3955     }
3956
3957     const wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
3958
3959     // coordinates of the cell under mouse
3960     wxGridCellCoords coords = XYToCell(pos);
3961
3962     int cell_rows, cell_cols;
3963     GetCellSize( coords.GetRow(), coords.GetCol(), &cell_rows, &cell_cols );
3964     if ( (cell_rows < 0) || (cell_cols < 0) )
3965     {
3966         coords.SetRow(coords.GetRow() + cell_rows);
3967         coords.SetCol(coords.GetCol() + cell_cols);
3968     }
3969
3970     if ( event.Dragging() )
3971     {
3972         if ( event.LeftIsDown() )
3973             DoGridDragEvent(event, coords);
3974         else
3975             event.Skip();
3976         return;
3977     }
3978
3979     m_isDragging = false;
3980     m_startDragPos = wxDefaultPosition;
3981
3982     // deal with various button presses
3983     if ( event.IsButton() )
3984     {
3985         if ( coords != wxGridNoCellCoords )
3986         {
3987             DisableCellEditControl();
3988
3989             if ( event.LeftDown() )
3990                 DoGridCellLeftDown(event, coords, pos);
3991             else if ( event.LeftDClick() )
3992                 DoGridCellLeftDClick(event, coords, pos);
3993             else if ( event.RightDown() )
3994                 SendEvent(wxEVT_GRID_CELL_RIGHT_CLICK, coords, event);
3995             else if ( event.RightDClick() )
3996                 SendEvent(wxEVT_GRID_CELL_RIGHT_DCLICK, coords, event);
3997         }
3998
3999         // this one should be called even if we're not over any cell
4000         if ( event.LeftUp() )
4001         {
4002             DoGridCellLeftUp(event, coords);
4003         }
4004     }
4005     else if ( event.Moving() )
4006     {
4007         DoGridMouseMoveEvent(event, coords, pos);
4008     }
4009     else // unknown mouse event?
4010     {
4011         event.Skip();
4012     }
4013 }
4014
4015 // this function returns true only if the size really changed
4016 bool wxGrid::DoEndDragResizeLine(const wxGridOperations& oper)
4017 {
4018     if ( m_dragLastPos == -1 )
4019         return false;
4020
4021     const wxGridOperations& doper = oper.Dual();
4022
4023     const wxSize size = m_gridWin->GetClientSize();
4024
4025     const wxPoint ptOrigin = CalcUnscrolledPosition(wxPoint(0, 0));
4026
4027     // erase the last line we drew
4028     wxClientDC dc(m_gridWin);
4029     PrepareDC(dc);
4030     dc.SetLogicalFunction(wxINVERT);
4031
4032     const int posLineStart = oper.Select(ptOrigin);
4033     const int posLineEnd = oper.Select(ptOrigin) + oper.Select(size);
4034
4035     oper.DrawParallelLine(dc, posLineStart, posLineEnd, m_dragLastPos);
4036
4037     // temporarily hide the edit control before resizing
4038     HideCellEditControl();
4039     SaveEditControlValue();
4040
4041     // do resize the line
4042     const int lineStart = oper.GetLineStartPos(this, m_dragRowOrCol);
4043     const int lineSizeOld = oper.GetLineSize(this, m_dragRowOrCol);
4044     oper.SetLineSize(this, m_dragRowOrCol,
4045                      wxMax(m_dragLastPos - lineStart,
4046                            oper.GetMinimalLineSize(this, m_dragRowOrCol)));
4047     const bool
4048         sizeChanged = oper.GetLineSize(this, m_dragRowOrCol) != lineSizeOld;
4049
4050     m_dragLastPos = -1;
4051
4052     // refresh now if we're not frozen
4053     if ( !GetBatchCount() )
4054     {
4055         // we need to refresh everything beyond the resized line in the header
4056         // window
4057
4058         // get the position from which to refresh in the other direction
4059         wxRect rect(CellToRect(oper.MakeCoords(m_dragRowOrCol, 0)));
4060         rect.SetPosition(CalcScrolledPosition(rect.GetPosition()));
4061
4062         // we only need the ordinate (for rows) or abscissa (for columns) here,
4063         // and need to cover the entire window in the other direction
4064         oper.Select(rect) = 0;
4065
4066         wxRect rectHeader(rect.GetPosition(),
4067                           oper.MakeSize
4068                                (
4069                                     oper.GetHeaderWindowSize(this),
4070                                     doper.Select(size) - doper.Select(rect)
4071                                ));
4072
4073         oper.GetHeaderWindow(this)->Refresh(true, &rectHeader);
4074
4075
4076         // also refresh the grid window: extend the rectangle
4077         if ( m_table )
4078         {
4079             oper.SelectSize(rect) = oper.Select(size);
4080
4081             int subtractLines = 0;
4082             const int lineStart = oper.PosToLine(this, posLineStart);
4083             if ( lineStart >= 0 )
4084             {
4085                 // ensure that if we have a multi-cell block we redraw all of
4086                 // it by increasing the refresh area to cover it entirely if a
4087                 // part of it is affected
4088                 const int lineEnd = oper.PosToLine(this, posLineEnd, true);
4089                 for ( int line = lineStart; line < lineEnd; line++ )
4090                 {
4091                     int cellLines = oper.Select(
4092                         GetCellSize(oper.MakeCoords(m_dragRowOrCol, line)));
4093                     if ( cellLines < subtractLines )
4094                         subtractLines = cellLines;
4095                 }
4096             }
4097
4098             int startPos =
4099                 oper.GetLineStartPos(this, m_dragRowOrCol + subtractLines);
4100             startPos = doper.CalcScrolledPosition(this, startPos);
4101
4102             doper.Select(rect) = startPos;
4103             doper.SelectSize(rect) = doper.Select(size) - startPos;
4104
4105             m_gridWin->Refresh(false, &rect);
4106         }
4107     }
4108
4109     // show the edit control back again
4110     ShowCellEditControl();
4111
4112     return sizeChanged;
4113 }
4114
4115 void wxGrid::DoEndDragResizeRow(const wxMouseEvent& event)
4116 {
4117     // TODO: generate RESIZING event, see #10754
4118
4119     if ( DoEndDragResizeLine(wxGridRowOperations()) )
4120         SendGridSizeEvent(wxEVT_GRID_ROW_SIZE, m_dragRowOrCol, -1, event);
4121 }
4122
4123 void wxGrid::DoEndDragResizeCol(const wxMouseEvent& event)
4124 {
4125     // TODO: generate RESIZING event, see #10754
4126
4127     if ( DoEndDragResizeLine(wxGridColumnOperations()) )
4128         SendGridSizeEvent(wxEVT_GRID_COL_SIZE, -1, m_dragRowOrCol, event);
4129 }
4130
4131 void wxGrid::DoStartMoveCol(int col)
4132 {
4133     m_dragRowOrCol = col;
4134 }
4135
4136 void wxGrid::DoEndMoveCol(int pos)
4137 {
4138     wxASSERT_MSG( m_dragRowOrCol != -1, "no matching DoStartMoveCol?" );
4139
4140     if ( SendEvent(wxEVT_GRID_COL_MOVE, -1, m_dragRowOrCol) != -1 )
4141         SetColPos(m_dragRowOrCol, pos);
4142     //else: vetoed by user
4143
4144     m_dragRowOrCol = -1;
4145 }
4146
4147 void wxGrid::RefreshAfterColPosChange()
4148 {
4149     // recalculate the column rights as the column positions have changed,
4150     // unless we calculate them dynamically because all columns widths are the
4151     // same and it's easy to do
4152     if ( !m_colWidths.empty() )
4153     {
4154         int colRight = 0;
4155         for ( int colPos = 0; colPos < m_numCols; colPos++ )
4156         {
4157             int colID = GetColAt( colPos );
4158
4159             colRight += m_colWidths[colID];
4160             m_colRights[colID] = colRight;
4161         }
4162     }
4163
4164     // and make the changes visible
4165     if ( m_useNativeHeader )
4166     {
4167         if ( m_colAt.empty() )
4168             GetGridColHeader()->ResetColumnsOrder();
4169         else
4170             GetGridColHeader()->SetColumnsOrder(m_colAt);
4171     }
4172     else
4173     {
4174         m_colWindow->Refresh();
4175     }
4176     m_gridWin->Refresh();
4177 }
4178
4179 void wxGrid::SetColumnsOrder(const wxArrayInt& order)
4180 {
4181     m_colAt = order;
4182
4183     RefreshAfterColPosChange();
4184 }
4185
4186 void wxGrid::SetColPos(int idx, int pos)
4187 {
4188     // we're going to need m_colAt now, initialize it if needed
4189     if ( m_colAt.empty() )
4190     {
4191         m_colAt.reserve(m_numCols);
4192         for ( int i = 0; i < m_numCols; i++ )
4193             m_colAt.push_back(i);
4194     }
4195
4196     wxHeaderCtrl::MoveColumnInOrderArray(m_colAt, idx, pos);
4197
4198     RefreshAfterColPosChange();
4199 }
4200
4201 void wxGrid::ResetColPos()
4202 {
4203     m_colAt.clear();
4204
4205     RefreshAfterColPosChange();
4206 }
4207
4208 void wxGrid::EnableDragColMove( bool enable )
4209 {
4210     if ( m_canDragColMove == enable )
4211         return;
4212
4213     if ( m_useNativeHeader )
4214     {
4215         // update all columns to make them [not] reorderable
4216         GetGridColHeader()->SetColumnCount(m_numCols);
4217     }
4218
4219     m_canDragColMove = enable;
4220
4221     // we use to call ResetColPos() from here if !enable but this doesn't seem
4222     // right as it would mean there would be no way to "freeze" the current
4223     // columns order by disabling moving them after putting them in the desired
4224     // order, whereas now you can always call ResetColPos() manually if needed
4225 }
4226
4227
4228 //
4229 // ------ interaction with data model
4230 //
4231 bool wxGrid::ProcessTableMessage( wxGridTableMessage& msg )
4232 {
4233     switch ( msg.GetId() )
4234     {
4235         case wxGRIDTABLE_REQUEST_VIEW_GET_VALUES:
4236             return GetModelValues();
4237
4238         case wxGRIDTABLE_REQUEST_VIEW_SEND_VALUES:
4239             return SetModelValues();
4240
4241         case wxGRIDTABLE_NOTIFY_ROWS_INSERTED:
4242         case wxGRIDTABLE_NOTIFY_ROWS_APPENDED:
4243         case wxGRIDTABLE_NOTIFY_ROWS_DELETED:
4244         case wxGRIDTABLE_NOTIFY_COLS_INSERTED:
4245         case wxGRIDTABLE_NOTIFY_COLS_APPENDED:
4246         case wxGRIDTABLE_NOTIFY_COLS_DELETED:
4247             return Redimension( msg );
4248
4249         default:
4250             return false;
4251     }
4252 }
4253
4254 // The behaviour of this function depends on the grid table class
4255 // Clear() function. For the default wxGridStringTable class the
4256 // behaviour is to replace all cell contents with wxEmptyString but
4257 // not to change the number of rows or cols.
4258 //
4259 void wxGrid::ClearGrid()
4260 {
4261     if ( m_table )
4262     {
4263         if (IsCellEditControlEnabled())
4264             DisableCellEditControl();
4265
4266         m_table->Clear();
4267         if (!GetBatchCount())
4268             m_gridWin->Refresh();
4269     }
4270 }
4271
4272 bool
4273 wxGrid::DoModifyLines(bool (wxGridTableBase::*funcModify)(size_t, size_t),
4274                       int pos, int num, bool WXUNUSED(updateLabels) )
4275 {
4276     wxCHECK_MSG( m_created, false, "must finish creating the grid first" );
4277
4278     if ( !m_table )
4279         return false;
4280
4281     if ( IsCellEditControlEnabled() )
4282         DisableCellEditControl();
4283
4284     return (m_table->*funcModify)(pos, num);
4285
4286     // the table will have sent the results of the insert row
4287     // operation to this view object as a grid table message
4288 }
4289
4290 bool
4291 wxGrid::DoAppendLines(bool (wxGridTableBase::*funcAppend)(size_t),
4292                       int num, bool WXUNUSED(updateLabels))
4293 {
4294     wxCHECK_MSG( m_created, false, "must finish creating the grid first" );
4295
4296     if ( !m_table )
4297         return false;
4298
4299     return (m_table->*funcAppend)(num);
4300 }
4301
4302 // ----------------------------------------------------------------------------
4303 // event generation helpers
4304 // ----------------------------------------------------------------------------
4305
4306 void
4307 wxGrid::SendGridSizeEvent(wxEventType type,
4308                       int row, int col,
4309                       const wxMouseEvent& mouseEv)
4310 {
4311    int rowOrCol = row == -1 ? col : row;
4312
4313    wxGridSizeEvent gridEvt( GetId(),
4314            type,
4315            this,
4316            rowOrCol,
4317            mouseEv.GetX() + GetRowLabelSize(),
4318            mouseEv.GetY() + GetColLabelSize(),
4319            mouseEv);
4320
4321    GetEventHandler()->ProcessEvent(gridEvt);
4322 }
4323
4324 // Generate a grid event based on a mouse event and return:
4325 //  -1 if the event was vetoed
4326 //  +1 if the event was processed (but not vetoed)
4327 //   0 if the event wasn't handled
4328 int
4329 wxGrid::SendEvent(const wxEventType type,
4330                   int row, int col,
4331                   const wxMouseEvent& mouseEv)
4332 {
4333    bool claimed, vetoed;
4334
4335    if ( type == wxEVT_GRID_RANGE_SELECT )
4336    {
4337        // Right now, it should _never_ end up here!
4338        wxGridRangeSelectEvent gridEvt( GetId(),
4339                type,
4340                this,
4341                m_selectedBlockTopLeft,
4342                m_selectedBlockBottomRight,
4343                true,
4344                mouseEv);
4345
4346        claimed = GetEventHandler()->ProcessEvent(gridEvt);
4347        vetoed = !gridEvt.IsAllowed();
4348    }
4349    else if ( type == wxEVT_GRID_LABEL_LEFT_CLICK ||
4350              type == wxEVT_GRID_LABEL_LEFT_DCLICK ||
4351              type == wxEVT_GRID_LABEL_RIGHT_CLICK ||
4352              type == wxEVT_GRID_LABEL_RIGHT_DCLICK )
4353    {
4354        wxPoint pos = mouseEv.GetPosition();
4355
4356        if ( mouseEv.GetEventObject() == GetGridRowLabelWindow() )
4357            pos.y += GetColLabelSize();
4358        if ( mouseEv.GetEventObject() == GetGridColLabelWindow() )
4359            pos.x += GetRowLabelSize();
4360
4361        wxGridEvent gridEvt( GetId(),
4362                type,
4363                this,
4364                row, col,
4365                pos.x,
4366                pos.y,
4367                false,
4368                mouseEv);
4369        claimed = GetEventHandler()->ProcessEvent(gridEvt);
4370        vetoed = !gridEvt.IsAllowed();
4371    }
4372    else
4373    {
4374        wxGridEvent gridEvt( GetId(),
4375                type,
4376                this,
4377                row, col,
4378                mouseEv.GetX() + GetRowLabelSize(),
4379                mouseEv.GetY() + GetColLabelSize(),
4380                false,
4381                mouseEv);
4382        claimed = GetEventHandler()->ProcessEvent(gridEvt);
4383        vetoed = !gridEvt.IsAllowed();
4384    }
4385
4386    // A Veto'd event may not be `claimed' so test this first
4387    if (vetoed)
4388        return -1;
4389
4390    return claimed ? 1 : 0;
4391 }
4392
4393 // Generate a grid event of specified type, return value same as above
4394 //
4395 int
4396 wxGrid::SendEvent(const wxEventType type, int row, int col, const wxString& s)
4397 {
4398     wxGridEvent gridEvt( GetId(), type, this, row, col );
4399     gridEvt.SetString(s);
4400
4401     const bool claimed = GetEventHandler()->ProcessEvent(gridEvt);
4402
4403     // A Veto'd event may not be `claimed' so test this first
4404     if ( !gridEvt.IsAllowed() )
4405         return -1;
4406
4407     return claimed ? 1 : 0;
4408 }
4409
4410 void wxGrid::OnPaint( wxPaintEvent& WXUNUSED(event) )
4411 {
4412     // needed to prevent zillions of paint events on MSW
4413     wxPaintDC dc(this);
4414 }
4415
4416 void wxGrid::Refresh(bool eraseb, const wxRect* rect)
4417 {
4418     // Don't do anything if between Begin/EndBatch...
4419     // EndBatch() will do all this on the last nested one anyway.
4420     if ( m_created && !GetBatchCount() )
4421     {
4422         // Refresh to get correct scrolled position:
4423         wxScrolledWindow::Refresh(eraseb, rect);
4424
4425         if (rect)
4426         {
4427             int rect_x, rect_y, rectWidth, rectHeight;
4428             int width_label, width_cell, height_label, height_cell;
4429             int x, y;
4430
4431             // Copy rectangle can get scroll offsets..
4432             rect_x = rect->GetX();
4433             rect_y = rect->GetY();
4434             rectWidth = rect->GetWidth();
4435             rectHeight = rect->GetHeight();
4436
4437             width_label = m_rowLabelWidth - rect_x;
4438             if (width_label > rectWidth)
4439                 width_label = rectWidth;
4440
4441             height_label = m_colLabelHeight - rect_y;
4442             if (height_label > rectHeight)
4443                 height_label = rectHeight;
4444
4445             if (rect_x > m_rowLabelWidth)
4446             {
4447                 x = rect_x - m_rowLabelWidth;
4448                 width_cell = rectWidth;
4449             }
4450             else
4451             {
4452                 x = 0;
4453                 width_cell = rectWidth - (m_rowLabelWidth - rect_x);
4454             }
4455
4456             if (rect_y > m_colLabelHeight)
4457             {
4458                 y = rect_y - m_colLabelHeight;
4459                 height_cell = rectHeight;
4460             }
4461             else
4462             {
4463                 y = 0;
4464                 height_cell = rectHeight - (m_colLabelHeight - rect_y);
4465             }
4466
4467             // Paint corner label part intersecting rect.
4468             if ( width_label > 0 && height_label > 0 )
4469             {
4470                 wxRect anotherrect(rect_x, rect_y, width_label, height_label);
4471                 m_cornerLabelWin->Refresh(eraseb, &anotherrect);
4472             }
4473
4474             // Paint col labels part intersecting rect.
4475             if ( width_cell > 0 && height_label > 0 )
4476             {
4477                 wxRect anotherrect(x, rect_y, width_cell, height_label);
4478                 m_colWindow->Refresh(eraseb, &anotherrect);
4479             }
4480
4481             // Paint row labels part intersecting rect.
4482             if ( width_label > 0 && height_cell > 0 )
4483             {
4484                 wxRect anotherrect(rect_x, y, width_label, height_cell);
4485                 m_rowLabelWin->Refresh(eraseb, &anotherrect);
4486             }
4487
4488             // Paint cell area part intersecting rect.
4489             if ( width_cell > 0 && height_cell > 0 )
4490             {
4491                 wxRect anotherrect(x, y, width_cell, height_cell);
4492                 m_gridWin->Refresh(eraseb, &anotherrect);
4493             }
4494         }
4495         else
4496         {
4497             m_cornerLabelWin->Refresh(eraseb, NULL);
4498             m_colWindow->Refresh(eraseb, NULL);
4499             m_rowLabelWin->Refresh(eraseb, NULL);
4500             m_gridWin->Refresh(eraseb, NULL);
4501         }
4502     }
4503 }
4504
4505 void wxGrid::OnSize(wxSizeEvent& WXUNUSED(event))
4506 {
4507     if (m_targetWindow != this) // check whether initialisation has been done
4508     {
4509         // reposition our children windows
4510         CalcWindowSizes();
4511     }
4512 }
4513
4514 void wxGrid::OnKeyDown( wxKeyEvent& event )
4515 {
4516     if ( m_inOnKeyDown )
4517     {
4518         // shouldn't be here - we are going round in circles...
4519         //
4520         wxFAIL_MSG( wxT("wxGrid::OnKeyDown called while already active") );
4521     }
4522
4523     m_inOnKeyDown = true;
4524
4525     // propagate the event up and see if it gets processed
4526     wxWindow *parent = GetParent();
4527     wxKeyEvent keyEvt( event );
4528     keyEvt.SetEventObject( parent );
4529
4530     if ( !parent->GetEventHandler()->ProcessEvent( keyEvt ) )
4531     {
4532         if (GetLayoutDirection() == wxLayout_RightToLeft)
4533         {
4534             if (event.GetKeyCode() == WXK_RIGHT)
4535                 event.m_keyCode = WXK_LEFT;
4536             else if (event.GetKeyCode() == WXK_LEFT)
4537                 event.m_keyCode = WXK_RIGHT;
4538         }
4539
4540         // try local handlers
4541         switch ( event.GetKeyCode() )
4542         {
4543             case WXK_UP:
4544                 if ( event.ControlDown() )
4545                     MoveCursorUpBlock( event.ShiftDown() );
4546                 else
4547                     MoveCursorUp( event.ShiftDown() );
4548                 break;
4549
4550             case WXK_DOWN:
4551                 if ( event.ControlDown() )
4552                     MoveCursorDownBlock( event.ShiftDown() );
4553                 else
4554                     MoveCursorDown( event.ShiftDown() );
4555                 break;
4556
4557             case WXK_LEFT:
4558                 if ( event.ControlDown() )
4559                     MoveCursorLeftBlock( event.ShiftDown() );
4560                 else
4561                     MoveCursorLeft( event.ShiftDown() );
4562                 break;
4563
4564             case WXK_RIGHT:
4565                 if ( event.ControlDown() )
4566                     MoveCursorRightBlock( event.ShiftDown() );
4567                 else
4568                     MoveCursorRight( event.ShiftDown() );
4569                 break;
4570
4571             case WXK_RETURN:
4572             case WXK_NUMPAD_ENTER:
4573                 if ( event.ControlDown() )
4574                 {
4575                     event.Skip();  // to let the edit control have the return
4576                 }
4577                 else
4578                 {
4579                     if ( GetGridCursorRow() < GetNumberRows()-1 )
4580                     {
4581                         MoveCursorDown( event.ShiftDown() );
4582                     }
4583                     else
4584                     {
4585                         // at the bottom of a column
4586                         DisableCellEditControl();
4587                     }
4588                 }
4589                 break;
4590
4591             case WXK_ESCAPE:
4592                 ClearSelection();
4593                 break;
4594
4595             case WXK_TAB:
4596                 if (event.ShiftDown())
4597                 {
4598                     if ( GetGridCursorCol() > 0 )
4599                     {
4600                         MoveCursorLeft( false );
4601                     }
4602                     else
4603                     {
4604                         // at left of grid
4605                         DisableCellEditControl();
4606                     }
4607                 }
4608                 else
4609                 {
4610                     if ( GetGridCursorCol() < GetNumberCols() - 1 )
4611                     {
4612                         MoveCursorRight( false );
4613                     }
4614                     else
4615                     {
4616                         // at right of grid
4617                         DisableCellEditControl();
4618                     }
4619                 }
4620                 break;
4621
4622             case WXK_HOME:
4623                 if ( event.ControlDown() )
4624                 {
4625                     GoToCell(0, 0);
4626                 }
4627                 else
4628                 {
4629                     event.Skip();
4630                 }
4631                 break;
4632
4633             case WXK_END:
4634                 if ( event.ControlDown() )
4635                 {
4636                     GoToCell(m_numRows - 1, m_numCols - 1);
4637                 }
4638                 else
4639                 {
4640                     event.Skip();
4641                 }
4642                 break;
4643
4644             case WXK_PAGEUP:
4645                 MovePageUp();
4646                 break;
4647
4648             case WXK_PAGEDOWN:
4649                 MovePageDown();
4650                 break;
4651
4652             case WXK_SPACE:
4653                 // Ctrl-Space selects the current column, Shift-Space -- the
4654                 // current row and Ctrl-Shift-Space -- everything
4655                 switch ( m_selection ? event.GetModifiers() : wxMOD_NONE )
4656                 {
4657                     case wxMOD_CONTROL:
4658                         m_selection->SelectCol(m_currentCellCoords.GetCol());
4659                         break;
4660
4661                     case wxMOD_SHIFT:
4662                         m_selection->SelectRow(m_currentCellCoords.GetRow());
4663                         break;
4664
4665                     case wxMOD_CONTROL | wxMOD_SHIFT:
4666                         m_selection->SelectBlock(0, 0,
4667                                                  m_numRows - 1, m_numCols - 1);
4668                         break;
4669
4670                     case wxMOD_NONE:
4671                         if ( !IsEditable() )
4672                         {
4673                             MoveCursorRight(false);
4674                             break;
4675                         }
4676                         //else: fall through
4677
4678                     default:
4679                         event.Skip();
4680                 }
4681                 break;
4682
4683             default:
4684                 event.Skip();
4685                 break;
4686         }
4687     }
4688
4689     m_inOnKeyDown = false;
4690 }
4691
4692 void wxGrid::OnKeyUp( wxKeyEvent& event )
4693 {
4694     // try local handlers
4695     //
4696     if ( event.GetKeyCode() == WXK_SHIFT )
4697     {
4698         if ( m_selectedBlockTopLeft != wxGridNoCellCoords &&
4699              m_selectedBlockBottomRight != wxGridNoCellCoords )
4700         {
4701             if ( m_selection )
4702             {
4703                 m_selection->SelectBlock(
4704                     m_selectedBlockTopLeft,
4705                     m_selectedBlockBottomRight,
4706                     event);
4707             }
4708         }
4709
4710         m_selectedBlockTopLeft = wxGridNoCellCoords;
4711         m_selectedBlockBottomRight = wxGridNoCellCoords;
4712         m_selectedBlockCorner = wxGridNoCellCoords;
4713     }
4714 }
4715
4716 void wxGrid::OnChar( wxKeyEvent& event )
4717 {
4718     // is it possible to edit the current cell at all?
4719     if ( !IsCellEditControlEnabled() && CanEnableCellControl() )
4720     {
4721         // yes, now check whether the cells editor accepts the key
4722         int row = m_currentCellCoords.GetRow();
4723         int col = m_currentCellCoords.GetCol();
4724         wxGridCellAttr *attr = GetCellAttr(row, col);
4725         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
4726
4727         // <F2> is special and will always start editing, for
4728         // other keys - ask the editor itself
4729         if ( (event.GetKeyCode() == WXK_F2 && !event.HasModifiers())
4730              || editor->IsAcceptedKey(event) )
4731         {
4732             // ensure cell is visble
4733             MakeCellVisible(row, col);
4734             EnableCellEditControl();
4735
4736             // a problem can arise if the cell is not completely
4737             // visible (even after calling MakeCellVisible the
4738             // control is not created and calling StartingKey will
4739             // crash the app
4740             if ( event.GetKeyCode() != WXK_F2 && editor->IsCreated() && m_cellEditCtrlEnabled )
4741                 editor->StartingKey(event);
4742         }
4743         else
4744         {
4745             event.Skip();
4746         }
4747
4748         editor->DecRef();
4749         attr->DecRef();
4750     }
4751     else
4752     {
4753         event.Skip();
4754     }
4755 }
4756
4757 void wxGrid::OnEraseBackground(wxEraseEvent&)
4758 {
4759 }
4760
4761 bool wxGrid::SetCurrentCell( const wxGridCellCoords& coords )
4762 {
4763     if ( SendEvent(wxEVT_GRID_SELECT_CELL, coords) == -1 )
4764     {
4765         // the event has been vetoed - do nothing
4766         return false;
4767     }
4768
4769 #if !defined(__WXMAC__)
4770     wxClientDC dc( m_gridWin );
4771     PrepareDC( dc );
4772 #endif
4773
4774     if ( m_currentCellCoords != wxGridNoCellCoords )
4775     {
4776         DisableCellEditControl();
4777
4778         if ( IsVisible( m_currentCellCoords, false ) )
4779         {
4780             wxRect r;
4781             r = BlockToDeviceRect( m_currentCellCoords, m_currentCellCoords );
4782             if ( !m_gridLinesEnabled )
4783             {
4784                 r.x--;
4785                 r.y--;
4786                 r.width++;
4787                 r.height++;
4788             }
4789
4790             wxGridCellCoordsArray cells = CalcCellsExposed( r );
4791
4792             // Otherwise refresh redraws the highlight!
4793             m_currentCellCoords = coords;
4794
4795 #if defined(__WXMAC__)
4796             m_gridWin->Refresh(true /*, & r */);
4797 #else
4798             DrawGridCellArea( dc, cells );
4799             DrawAllGridLines( dc, r );
4800 #endif
4801         }
4802     }
4803
4804     m_currentCellCoords = coords;
4805
4806     wxGridCellAttr *attr = GetCellAttr( coords );
4807 #if !defined(__WXMAC__)
4808     DrawCellHighlight( dc, attr );
4809 #endif
4810     attr->DecRef();
4811
4812     return true;
4813 }
4814
4815 void
4816 wxGrid::UpdateBlockBeingSelected(int topRow, int leftCol,
4817                                  int bottomRow, int rightCol)
4818 {
4819     if ( m_selection )
4820     {
4821         switch ( m_selection->GetSelectionMode() )
4822         {
4823             default:
4824                 wxFAIL_MSG( "unknown selection mode" );
4825                 // fall through
4826
4827             case wxGridSelectCells:
4828                 // arbitrary blocks selection allowed so just use the cell
4829                 // coordinates as is
4830                 break;
4831
4832             case wxGridSelectRows:
4833                 // only full rows selection allowd, ensure that we do select
4834                 // full rows
4835                 leftCol = 0;
4836                 rightCol = GetNumberCols() - 1;
4837                 break;
4838
4839             case wxGridSelectColumns:
4840                 // same as above but for columns
4841                 topRow = 0;
4842                 bottomRow = GetNumberRows() - 1;
4843                 break;
4844
4845             case wxGridSelectRowsOrColumns:
4846                 // in this mode we can select only full rows or full columns so
4847                 // it doesn't make sense to select blocks at all (and we can't
4848                 // extend the block because there is no preferred direction, we
4849                 // could only extend it to cover the entire grid but this is
4850                 // not useful)
4851                 return;
4852         }
4853     }
4854
4855     m_selectedBlockCorner = wxGridCellCoords(bottomRow, rightCol);
4856     MakeCellVisible(m_selectedBlockCorner);
4857
4858     EnsureFirstLessThanSecond(topRow, bottomRow);
4859     EnsureFirstLessThanSecond(leftCol, rightCol);
4860
4861     wxGridCellCoords updateTopLeft = wxGridCellCoords(topRow, leftCol),
4862                      updateBottomRight = wxGridCellCoords(bottomRow, rightCol);
4863
4864     // First the case that we selected a completely new area
4865     if ( m_selectedBlockTopLeft == wxGridNoCellCoords ||
4866          m_selectedBlockBottomRight == wxGridNoCellCoords )
4867     {
4868         wxRect rect;
4869         rect = BlockToDeviceRect( wxGridCellCoords ( topRow, leftCol ),
4870                                   wxGridCellCoords ( bottomRow, rightCol ) );
4871         m_gridWin->Refresh( false, &rect );
4872     }
4873
4874     // Now handle changing an existing selection area.
4875     else if ( m_selectedBlockTopLeft != updateTopLeft ||
4876               m_selectedBlockBottomRight != updateBottomRight )
4877     {
4878         // Compute two optimal update rectangles:
4879         // Either one rectangle is a real subset of the
4880         // other, or they are (almost) disjoint!
4881         wxRect  rect[4];
4882         bool    need_refresh[4];
4883         need_refresh[0] =
4884         need_refresh[1] =
4885         need_refresh[2] =
4886         need_refresh[3] = false;
4887         int     i;
4888
4889         // Store intermediate values
4890         wxCoord oldLeft = m_selectedBlockTopLeft.GetCol();
4891         wxCoord oldTop = m_selectedBlockTopLeft.GetRow();
4892         wxCoord oldRight = m_selectedBlockBottomRight.GetCol();
4893         wxCoord oldBottom = m_selectedBlockBottomRight.GetRow();
4894
4895         // Determine the outer/inner coordinates.
4896         EnsureFirstLessThanSecond(oldLeft, leftCol);
4897         EnsureFirstLessThanSecond(oldTop, topRow);
4898         EnsureFirstLessThanSecond(rightCol, oldRight);
4899         EnsureFirstLessThanSecond(bottomRow, oldBottom);
4900
4901         // Now, either the stuff marked old is the outer
4902         // rectangle or we don't have a situation where one
4903         // is contained in the other.
4904
4905         if ( oldLeft < leftCol )
4906         {
4907             // Refresh the newly selected or deselected
4908             // area to the left of the old or new selection.
4909             need_refresh[0] = true;
4910             rect[0] = BlockToDeviceRect(
4911                 wxGridCellCoords( oldTop,  oldLeft ),
4912                 wxGridCellCoords( oldBottom, leftCol - 1 ) );
4913         }
4914
4915         if ( oldTop < topRow )
4916         {
4917             // Refresh the newly selected or deselected
4918             // area above the old or new selection.
4919             need_refresh[1] = true;
4920             rect[1] = BlockToDeviceRect(
4921                 wxGridCellCoords( oldTop, leftCol ),
4922                 wxGridCellCoords( topRow - 1, rightCol ) );
4923         }
4924
4925         if ( oldRight > rightCol )
4926         {
4927             // Refresh the newly selected or deselected
4928             // area to the right of the old or new selection.
4929             need_refresh[2] = true;
4930             rect[2] = BlockToDeviceRect(
4931                 wxGridCellCoords( oldTop, rightCol + 1 ),
4932                 wxGridCellCoords( oldBottom, oldRight ) );
4933         }
4934
4935         if ( oldBottom > bottomRow )
4936         {
4937             // Refresh the newly selected or deselected
4938             // area below the old or new selection.
4939             need_refresh[3] = true;
4940             rect[3] = BlockToDeviceRect(
4941                 wxGridCellCoords( bottomRow + 1, leftCol ),
4942                 wxGridCellCoords( oldBottom, rightCol ) );
4943         }
4944
4945         // various Refresh() calls
4946         for (i = 0; i < 4; i++ )
4947             if ( need_refresh[i] && rect[i] != wxGridNoCellRect )
4948                 m_gridWin->Refresh( false, &(rect[i]) );
4949     }
4950
4951     // change selection
4952     m_selectedBlockTopLeft = updateTopLeft;
4953     m_selectedBlockBottomRight = updateBottomRight;
4954 }
4955
4956 //
4957 // ------ functions to get/send data (see also public functions)
4958 //
4959
4960 bool wxGrid::GetModelValues()
4961 {
4962     // Hide the editor, so it won't hide a changed value.
4963     HideCellEditControl();
4964
4965     if ( m_table )
4966     {
4967         // all we need to do is repaint the grid
4968         //
4969         m_gridWin->Refresh();
4970         return true;
4971     }
4972
4973     return false;
4974 }
4975
4976 bool wxGrid::SetModelValues()
4977 {
4978     int row, col;
4979
4980     // Disable the editor, so it won't hide a changed value.
4981     // Do we also want to save the current value of the editor first?
4982     // I think so ...
4983     DisableCellEditControl();
4984
4985     if ( m_table )
4986     {
4987         for ( row = 0; row < m_numRows; row++ )
4988         {
4989             for ( col = 0; col < m_numCols; col++ )
4990             {
4991                 m_table->SetValue( row, col, GetCellValue(row, col) );
4992             }
4993         }
4994
4995         return true;
4996     }
4997
4998     return false;
4999 }
5000
5001 // Note - this function only draws cells that are in the list of
5002 // exposed cells (usually set from the update region by
5003 // CalcExposedCells)
5004 //
5005 void wxGrid::DrawGridCellArea( wxDC& dc, const wxGridCellCoordsArray& cells )
5006 {
5007     if ( !m_numRows || !m_numCols )
5008         return;
5009
5010     int i, numCells = cells.GetCount();
5011     int row, col, cell_rows, cell_cols;
5012     wxGridCellCoordsArray redrawCells;
5013
5014     for ( i = numCells - 1; i >= 0; i-- )
5015     {
5016         row = cells[i].GetRow();
5017         col = cells[i].GetCol();
5018         GetCellSize( row, col, &cell_rows, &cell_cols );
5019
5020         // If this cell is part of a multicell block, find owner for repaint
5021         if ( cell_rows <= 0 || cell_cols <= 0 )
5022         {
5023             wxGridCellCoords cell( row + cell_rows, col + cell_cols );
5024             bool marked = false;
5025             for ( int j = 0; j < numCells; j++ )
5026             {
5027                 if ( cell == cells[j] )
5028                 {
5029                     marked = true;
5030                     break;
5031                 }
5032             }
5033
5034             if (!marked)
5035             {
5036                 int count = redrawCells.GetCount();
5037                 for (int j = 0; j < count; j++)
5038                 {
5039                     if ( cell == redrawCells[j] )
5040                     {
5041                         marked = true;
5042                         break;
5043                     }
5044                 }
5045
5046                 if (!marked)
5047                     redrawCells.Add( cell );
5048             }
5049
5050             // don't bother drawing this cell
5051             continue;
5052         }
5053
5054         // If this cell is empty, find cell to left that might want to overflow
5055         if (m_table && m_table->IsEmptyCell(row, col))
5056         {
5057             for ( int l = 0; l < cell_rows; l++ )
5058             {
5059                 // find a cell in this row to leave already marked for repaint
5060                 int left = col;
5061                 for (int k = 0; k < int(redrawCells.GetCount()); k++)
5062                     if ((redrawCells[k].GetCol() < left) &&
5063                         (redrawCells[k].GetRow() == row))
5064                     {
5065                         left = redrawCells[k].GetCol();
5066                     }
5067
5068                 if (left == col)
5069                     left = 0; // oh well
5070
5071                 for (int j = col - 1; j >= left; j--)
5072                 {
5073                     if (!m_table->IsEmptyCell(row + l, j))
5074                     {
5075                         if (GetCellOverflow(row + l, j))
5076                         {
5077                             wxGridCellCoords cell(row + l, j);
5078                             bool marked = false;
5079
5080                             for (int k = 0; k < numCells; k++)
5081                             {
5082                                 if ( cell == cells[k] )
5083                                 {
5084                                     marked = true;
5085                                     break;
5086                                 }
5087                             }
5088
5089                             if (!marked)
5090                             {
5091                                 int count = redrawCells.GetCount();
5092                                 for (int k = 0; k < count; k++)
5093                                 {
5094                                     if ( cell == redrawCells[k] )
5095                                     {
5096                                         marked = true;
5097                                         break;
5098                                     }
5099                                 }
5100                                 if (!marked)
5101                                     redrawCells.Add( cell );
5102                             }
5103                         }
5104                         break;
5105                     }
5106                 }
5107             }
5108         }
5109
5110         DrawCell( dc, cells[i] );
5111     }
5112
5113     numCells = redrawCells.GetCount();
5114
5115     for ( i = numCells - 1; i >= 0; i-- )
5116     {
5117         DrawCell( dc, redrawCells[i] );
5118     }
5119 }
5120
5121 void wxGrid::DrawGridSpace( wxDC& dc )
5122 {
5123   int cw, ch;
5124   m_gridWin->GetClientSize( &cw, &ch );
5125
5126   int right, bottom;
5127   CalcUnscrolledPosition( cw, ch, &right, &bottom );
5128
5129   int rightCol = m_numCols > 0 ? GetColRight(GetColAt( m_numCols - 1 )) : 0;
5130   int bottomRow = m_numRows > 0 ? GetRowBottom(m_numRows - 1) : 0;
5131
5132   if ( right > rightCol || bottom > bottomRow )
5133   {
5134       int left, top;
5135       CalcUnscrolledPosition( 0, 0, &left, &top );
5136
5137       dc.SetBrush(GetDefaultCellBackgroundColour());
5138       dc.SetPen( *wxTRANSPARENT_PEN );
5139
5140       if ( right > rightCol )
5141       {
5142           dc.DrawRectangle( rightCol, top, right - rightCol, ch );
5143       }
5144
5145       if ( bottom > bottomRow )
5146       {
5147           dc.DrawRectangle( left, bottomRow, cw, bottom - bottomRow );
5148       }
5149   }
5150 }
5151
5152 void wxGrid::DrawCell( wxDC& dc, const wxGridCellCoords& coords )
5153 {
5154     int row = coords.GetRow();
5155     int col = coords.GetCol();
5156
5157     if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
5158         return;
5159
5160     // we draw the cell border ourselves
5161     wxGridCellAttr* attr = GetCellAttr(row, col);
5162
5163     bool isCurrent = coords == m_currentCellCoords;
5164
5165     wxRect rect = CellToRect( row, col );
5166
5167     // if the editor is shown, we should use it and not the renderer
5168     // Note: However, only if it is really _shown_, i.e. not hidden!
5169     if ( isCurrent && IsCellEditControlShown() )
5170     {
5171         // NB: this "#if..." is temporary and fixes a problem where the
5172         // edit control is erased by this code after being rendered.
5173         // On wxMac (QD build only), the cell editor is a wxTextCntl and is rendered
5174         // implicitly, causing this out-of order render.
5175 #if !defined(__WXMAC__)
5176         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
5177         editor->PaintBackground(rect, attr);
5178         editor->DecRef();
5179 #endif
5180     }
5181     else
5182     {
5183         // but all the rest is drawn by the cell renderer and hence may be customized
5184         wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
5185         renderer->Draw(*this, *attr, dc, rect, row, col, IsInSelection(coords));
5186         renderer->DecRef();
5187     }
5188
5189     attr->DecRef();
5190 }
5191
5192 void wxGrid::DrawCellHighlight( wxDC& dc, const wxGridCellAttr *attr )
5193 {
5194     // don't show highlight when the grid doesn't have focus
5195     if ( !HasFocus() )
5196         return;
5197
5198     int row = m_currentCellCoords.GetRow();
5199     int col = m_currentCellCoords.GetCol();
5200
5201     if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
5202         return;
5203
5204     wxRect rect = CellToRect(row, col);
5205
5206     // hmmm... what could we do here to show that the cell is disabled?
5207     // for now, I just draw a thinner border than for the other ones, but
5208     // it doesn't look really good
5209
5210     int penWidth = attr->IsReadOnly() ? m_cellHighlightROPenWidth : m_cellHighlightPenWidth;
5211
5212     if (penWidth > 0)
5213     {
5214         // The center of the drawn line is where the position/width/height of
5215         // the rectangle is actually at (on wxMSW at least), so the
5216         // size of the rectangle is reduced to compensate for the thickness of
5217         // the line. If this is too strange on non-wxMSW platforms then
5218         // please #ifdef this appropriately.
5219         rect.x += penWidth / 2;
5220         rect.y += penWidth / 2;
5221         rect.width -= penWidth - 1;
5222         rect.height -= penWidth - 1;
5223
5224         // Now draw the rectangle
5225         // use the cellHighlightColour if the cell is inside a selection, this
5226         // will ensure the cell is always visible.
5227         dc.SetPen(wxPen(IsInSelection(row,col) ? m_selectionForeground
5228                                                : m_cellHighlightColour,
5229                         penWidth));
5230         dc.SetBrush(*wxTRANSPARENT_BRUSH);
5231         dc.DrawRectangle(rect);
5232     }
5233 }
5234
5235 wxPen wxGrid::GetDefaultGridLinePen()
5236 {
5237     return wxPen(GetGridLineColour());
5238 }
5239
5240 wxPen wxGrid::GetRowGridLinePen(int WXUNUSED(row))
5241 {
5242     return GetDefaultGridLinePen();
5243 }
5244
5245 wxPen wxGrid::GetColGridLinePen(int WXUNUSED(col))
5246 {
5247     return GetDefaultGridLinePen();
5248 }
5249
5250 void wxGrid::DrawCellBorder( wxDC& dc, const wxGridCellCoords& coords )
5251 {
5252     int row = coords.GetRow();
5253     int col = coords.GetCol();
5254     if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
5255         return;
5256
5257
5258     wxRect rect = CellToRect( row, col );
5259
5260     // right hand border
5261     dc.SetPen( GetColGridLinePen(col) );
5262     dc.DrawLine( rect.x + rect.width, rect.y,
5263                  rect.x + rect.width, rect.y + rect.height + 1 );
5264
5265     // bottom border
5266     dc.SetPen( GetRowGridLinePen(row) );
5267     dc.DrawLine( rect.x, rect.y + rect.height,
5268                  rect.x + rect.width, rect.y + rect.height);
5269 }
5270
5271 void wxGrid::DrawHighlight(wxDC& dc, const wxGridCellCoordsArray& cells)
5272 {
5273     // This if block was previously in wxGrid::OnPaint but that doesn't
5274     // seem to get called under wxGTK - MB
5275     //
5276     if ( m_currentCellCoords == wxGridNoCellCoords &&
5277          m_numRows && m_numCols )
5278     {
5279         m_currentCellCoords.Set(0, 0);
5280     }
5281
5282     if ( IsCellEditControlShown() )
5283     {
5284         // don't show highlight when the edit control is shown
5285         return;
5286     }
5287
5288     // if the active cell was repainted, repaint its highlight too because it
5289     // might have been damaged by the grid lines
5290     size_t count = cells.GetCount();
5291     for ( size_t n = 0; n < count; n++ )
5292     {
5293         wxGridCellCoords cell = cells[n];
5294
5295         // If we are using attributes, then we may have just exposed another
5296         // cell in a partially-visible merged cluster of cells. If the "anchor"
5297         // (upper left) cell of this merged cluster is the cell indicated by
5298         // m_currentCellCoords, then we need to refresh the cell highlight even
5299         // though the "anchor" itself is not part of our update segment.
5300         if ( CanHaveAttributes() )
5301         {
5302             int rows = 0,
5303                 cols = 0;
5304             GetCellSize(cell.GetRow(), cell.GetCol(), &rows, &cols);
5305
5306             if ( rows < 0 )
5307                 cell.SetRow(cell.GetRow() + rows);
5308
5309             if ( cols < 0 )
5310                 cell.SetCol(cell.GetCol() + cols);
5311         }
5312
5313         if ( cell == m_currentCellCoords )
5314         {
5315             wxGridCellAttr* attr = GetCellAttr(m_currentCellCoords);
5316             DrawCellHighlight(dc, attr);
5317             attr->DecRef();
5318
5319             break;
5320         }
5321     }
5322 }
5323
5324 // This is used to redraw all grid lines e.g. when the grid line colour
5325 // has been changed
5326 //
5327 void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
5328 {
5329     if ( !m_gridLinesEnabled )
5330          return;
5331
5332     int top, bottom, left, right;
5333
5334     int cw, ch;
5335     m_gridWin->GetClientSize(&cw, &ch);
5336     CalcUnscrolledPosition( 0, 0, &left, &top );
5337     CalcUnscrolledPosition( cw, ch, &right, &bottom );
5338
5339     // avoid drawing grid lines past the last row and col
5340     if ( m_gridLinesClipHorz )
5341     {
5342         if ( !m_numCols )
5343             return;
5344
5345         const int lastColRight = GetColRight(GetColAt(m_numCols - 1));
5346         if ( right > lastColRight )
5347             right = lastColRight;
5348     }
5349
5350     if ( m_gridLinesClipVert )
5351     {
5352         if ( !m_numRows )
5353             return;
5354
5355         const int lastRowBottom = GetRowBottom(m_numRows - 1);
5356         if ( bottom > lastRowBottom )
5357             bottom = lastRowBottom;
5358     }
5359
5360     // no gridlines inside multicells, clip them out
5361     int leftCol = GetColPos( internalXToCol(left) );
5362     int topRow = internalYToRow(top);
5363     int rightCol = GetColPos( internalXToCol(right) );
5364     int bottomRow = internalYToRow(bottom);
5365
5366     wxRegion clippedcells(0, 0, cw, ch);
5367
5368     int cell_rows, cell_cols;
5369     wxRect rect;
5370
5371     for ( int j = topRow; j <= bottomRow; j++ )
5372     {
5373         for ( int colPos = leftCol; colPos <= rightCol; colPos++ )
5374         {
5375             int i = GetColAt( colPos );
5376
5377             GetCellSize( j, i, &cell_rows, &cell_cols );
5378             if ((cell_rows > 1) || (cell_cols > 1))
5379             {
5380                 rect = CellToRect(j,i);
5381                 CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
5382                 clippedcells.Subtract(rect);
5383             }
5384             else if ((cell_rows < 0) || (cell_cols < 0))
5385             {
5386                 rect = CellToRect(j + cell_rows, i + cell_cols);
5387                 CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
5388                 clippedcells.Subtract(rect);
5389             }
5390         }
5391     }
5392
5393     dc.SetDeviceClippingRegion( clippedcells );
5394
5395
5396     // horizontal grid lines
5397     for ( int i = internalYToRow(top); i < m_numRows; i++ )
5398     {
5399         int bot = GetRowBottom(i) - 1;
5400
5401         if ( bot > bottom )
5402             break;
5403
5404         if ( bot >= top )
5405         {
5406             dc.SetPen( GetRowGridLinePen(i) );
5407             dc.DrawLine( left, bot, right, bot );
5408         }
5409     }
5410
5411     // vertical grid lines
5412     for ( int colPos = leftCol; colPos < m_numCols; colPos++ )
5413     {
5414         int i = GetColAt( colPos );
5415
5416         int colRight = GetColRight(i);
5417 #ifdef __WXGTK__
5418         if (GetLayoutDirection() != wxLayout_RightToLeft)
5419 #endif
5420             colRight--;
5421
5422         if ( colRight > right )
5423             break;
5424
5425         if ( colRight >= left )
5426         {
5427             dc.SetPen( GetColGridLinePen(i) );
5428             dc.DrawLine( colRight, top, colRight, bottom );
5429         }
5430     }
5431
5432     dc.DestroyClippingRegion();
5433 }
5434
5435 void wxGrid::DrawRowLabels( wxDC& dc, const wxArrayInt& rows)
5436 {
5437     if ( !m_numRows )
5438         return;
5439
5440     const size_t numLabels = rows.GetCount();
5441     for ( size_t i = 0; i < numLabels; i++ )
5442     {
5443         DrawRowLabel( dc, rows[i] );
5444     }
5445 }
5446
5447 void wxGrid::DrawRowLabel( wxDC& dc, int row )
5448 {
5449     if ( GetRowHeight(row) <= 0 || m_rowLabelWidth <= 0 )
5450         return;
5451
5452     wxGridCellAttrProvider * const
5453         attrProvider = m_table ? m_table->GetAttrProvider() : NULL;
5454
5455     // notice that an explicit static_cast is needed to avoid a compilation
5456     // error with VC7.1 which, for some reason, tries to instantiate (abstract)
5457     // wxGridRowHeaderRenderer class without it
5458     const wxGridRowHeaderRenderer&
5459         rend = attrProvider ? attrProvider->GetRowHeaderRenderer(row)
5460                             : static_cast<const wxGridRowHeaderRenderer&>
5461                                 (gs_defaultHeaderRenderers.rowRenderer);
5462
5463     wxRect rect(0, GetRowTop(row), m_rowLabelWidth, GetRowHeight(row));
5464     rend.DrawBorder(*this, dc, rect);
5465
5466     int hAlign, vAlign;
5467     GetRowLabelAlignment(&hAlign, &vAlign);
5468
5469     rend.DrawLabel(*this, dc, GetRowLabelValue(row),
5470                    rect, hAlign, vAlign, wxHORIZONTAL);
5471 }
5472
5473 void wxGrid::UseNativeColHeader(bool native)
5474 {
5475     if ( native == m_useNativeHeader )
5476         return;
5477
5478     delete m_colWindow;
5479     m_useNativeHeader = native;
5480
5481     CreateColumnWindow();
5482
5483     if ( m_useNativeHeader )
5484         GetGridColHeader()->SetColumnCount(m_numCols);
5485     CalcWindowSizes();
5486 }
5487
5488 void wxGrid::SetUseNativeColLabels( bool native )
5489 {
5490     wxASSERT_MSG( !m_useNativeHeader,
5491                   "doesn't make sense when using native header" );
5492
5493     m_nativeColumnLabels = native;
5494     if (native)
5495     {
5496         int height = wxRendererNative::Get().GetHeaderButtonHeight( this );
5497         SetColLabelSize( height );
5498     }
5499
5500     GetColLabelWindow()->Refresh();
5501     m_cornerLabelWin->Refresh();
5502 }
5503
5504 void wxGrid::DrawColLabels( wxDC& dc,const wxArrayInt& cols )
5505 {
5506     if ( !m_numCols )
5507         return;
5508
5509     const size_t numLabels = cols.GetCount();
5510     for ( size_t i = 0; i < numLabels; i++ )
5511     {
5512         DrawColLabel( dc, cols[i] );
5513     }
5514 }
5515
5516 void wxGrid::DrawCornerLabel(wxDC& dc)
5517 {
5518     wxRect rect(wxSize(m_rowLabelWidth, m_colLabelHeight));
5519
5520     if ( m_nativeColumnLabels )
5521     {
5522         rect.Deflate(1);
5523
5524         wxRendererNative::Get().DrawHeaderButton(m_cornerLabelWin, dc, rect, 0);
5525     }
5526     else
5527     {
5528         rect.width++;
5529         rect.height++;
5530
5531         wxGridCellAttrProvider * const
5532             attrProvider = m_table ? m_table->GetAttrProvider() : NULL;
5533         const wxGridCornerHeaderRenderer&
5534             rend = attrProvider ? attrProvider->GetCornerRenderer()
5535                                 : static_cast<wxGridCornerHeaderRenderer&>
5536                                     (gs_defaultHeaderRenderers.cornerRenderer);
5537
5538         rend.DrawBorder(*this, dc, rect);
5539     }
5540 }
5541
5542 void wxGrid::DrawColLabel(wxDC& dc, int col)
5543 {
5544     if ( GetColWidth(col) <= 0 || m_colLabelHeight <= 0 )
5545         return;
5546
5547     int colLeft = GetColLeft(col);
5548
5549     wxRect rect(colLeft, 0, GetColWidth(col), m_colLabelHeight);
5550     wxGridCellAttrProvider * const
5551         attrProvider = m_table ? m_table->GetAttrProvider() : NULL;
5552     const wxGridColumnHeaderRenderer&
5553         rend = attrProvider ? attrProvider->GetColumnHeaderRenderer(col)
5554                             : static_cast<wxGridColumnHeaderRenderer&>
5555                                 (gs_defaultHeaderRenderers.colRenderer);
5556
5557     if ( m_nativeColumnLabels )
5558     {
5559         wxRendererNative::Get().DrawHeaderButton
5560                                 (
5561                                     GetColLabelWindow(),
5562                                     dc,
5563                                     rect,
5564                                     0,
5565                                     IsSortingBy(col)
5566                                         ? IsSortOrderAscending()
5567                                             ? wxHDR_SORT_ICON_UP
5568                                             : wxHDR_SORT_ICON_DOWN
5569                                         : wxHDR_SORT_ICON_NONE
5570                                 );
5571         rect.Deflate(2);
5572     }
5573     else
5574     {
5575         // It is reported that we need to erase the background to avoid display
5576         // artefacts, see #12055.
5577         wxDCBrushChanger setBrush(dc, m_colWindow->GetBackgroundColour());
5578         dc.DrawRectangle(rect);
5579
5580         rend.DrawBorder(*this, dc, rect);
5581     }
5582
5583     int hAlign, vAlign;
5584     GetColLabelAlignment(&hAlign, &vAlign);
5585     const int orient = GetColLabelTextOrientation();
5586
5587     rend.DrawLabel(*this, dc, GetColLabelValue(col), rect, hAlign, vAlign, orient);
5588 }
5589
5590 // TODO: these 2 functions should be replaced with wxDC::DrawLabel() to which
5591 //       we just have to add textOrientation support
5592 void wxGrid::DrawTextRectangle( wxDC& dc,
5593                                 const wxString& value,
5594                                 const wxRect& rect,
5595                                 int horizAlign,
5596                                 int vertAlign,
5597                                 int textOrientation ) const
5598 {
5599     wxArrayString lines;
5600
5601     StringToLines( value, lines );
5602
5603     DrawTextRectangle(dc, lines, rect, horizAlign, vertAlign, textOrientation);
5604 }
5605
5606 void wxGrid::DrawTextRectangle(wxDC& dc,
5607                                const wxArrayString& lines,
5608                                const wxRect& rect,
5609                                int horizAlign,
5610                                int vertAlign,
5611                                int textOrientation) const
5612 {
5613     if ( lines.empty() )
5614         return;
5615
5616     wxDCClipper clip(dc, rect);
5617
5618     long textWidth,
5619          textHeight;
5620
5621     if ( textOrientation == wxHORIZONTAL )
5622         GetTextBoxSize( dc, lines, &textWidth, &textHeight );
5623     else
5624         GetTextBoxSize( dc, lines, &textHeight, &textWidth );
5625
5626     int x = 0,
5627         y = 0;
5628     switch ( vertAlign )
5629     {
5630         case wxALIGN_BOTTOM:
5631             if ( textOrientation == wxHORIZONTAL )
5632                 y = rect.y + (rect.height - textHeight - 1);
5633             else
5634                 x = rect.x + rect.width - textWidth;
5635             break;
5636
5637         case wxALIGN_CENTRE:
5638             if ( textOrientation == wxHORIZONTAL )
5639                 y = rect.y + ((rect.height - textHeight) / 2);
5640             else
5641                 x = rect.x + ((rect.width - textWidth) / 2);
5642             break;
5643
5644         case wxALIGN_TOP:
5645         default:
5646             if ( textOrientation == wxHORIZONTAL )
5647                 y = rect.y + 1;
5648             else
5649                 x = rect.x + 1;
5650             break;
5651     }
5652
5653     // Align each line of a multi-line label
5654     size_t nLines = lines.GetCount();
5655     for ( size_t l = 0; l < nLines; l++ )
5656     {
5657         const wxString& line = lines[l];
5658
5659         if ( line.empty() )
5660         {
5661             *(textOrientation == wxHORIZONTAL ? &y : &x) += dc.GetCharHeight();
5662             continue;
5663         }
5664
5665         wxCoord lineWidth = 0,
5666              lineHeight = 0;
5667         dc.GetTextExtent(line, &lineWidth, &lineHeight);
5668
5669         switch ( horizAlign )
5670         {
5671             case wxALIGN_RIGHT:
5672                 if ( textOrientation == wxHORIZONTAL )
5673                     x = rect.x + (rect.width - lineWidth - 1);
5674                 else
5675                     y = rect.y + lineWidth + 1;
5676                 break;
5677
5678             case wxALIGN_CENTRE:
5679                 if ( textOrientation == wxHORIZONTAL )
5680                     x = rect.x + ((rect.width - lineWidth) / 2);
5681                 else
5682                     y = rect.y + rect.height - ((rect.height - lineWidth) / 2);
5683                 break;
5684
5685             case wxALIGN_LEFT:
5686             default:
5687                 if ( textOrientation == wxHORIZONTAL )
5688                     x = rect.x + 1;
5689                 else
5690                     y = rect.y + rect.height - 1;
5691                 break;
5692         }
5693
5694         if ( textOrientation == wxHORIZONTAL )
5695         {
5696             dc.DrawText( line, x, y );
5697             y += lineHeight;
5698         }
5699         else
5700         {
5701             dc.DrawRotatedText( line, x, y, 90.0 );
5702             x += lineHeight;
5703         }
5704     }
5705 }
5706
5707 // Split multi-line text up into an array of strings.
5708 // Any existing contents of the string array are preserved.
5709 //
5710 // TODO: refactor wxTextFile::Read() and reuse the same code from here
5711 void wxGrid::StringToLines( const wxString& value, wxArrayString& lines ) const
5712 {
5713     int startPos = 0;
5714     int pos;
5715     wxString eol = wxTextFile::GetEOL( wxTextFileType_Unix );
5716     wxString tVal = wxTextFile::Translate( value, wxTextFileType_Unix );
5717
5718     while ( startPos < (int)tVal.length() )
5719     {
5720         pos = tVal.Mid(startPos).Find( eol );
5721         if ( pos < 0 )
5722         {
5723             break;
5724         }
5725         else if ( pos == 0 )
5726         {
5727             lines.Add( wxEmptyString );
5728         }
5729         else
5730         {
5731             lines.Add( tVal.Mid(startPos, pos) );
5732         }
5733
5734         startPos += pos + 1;
5735     }
5736
5737     if ( startPos < (int)tVal.length() )
5738     {
5739         lines.Add( tVal.Mid( startPos ) );
5740     }
5741 }
5742
5743 void wxGrid::GetTextBoxSize( const wxDC& dc,
5744                              const wxArrayString& lines,
5745                              long *width, long *height ) const
5746 {
5747     wxCoord w = 0;
5748     wxCoord h = 0;
5749     wxCoord lineW = 0, lineH = 0;
5750
5751     size_t i;
5752     for ( i = 0; i < lines.GetCount(); i++ )
5753     {
5754         dc.GetTextExtent( lines[i], &lineW, &lineH );
5755         w = wxMax( w, lineW );
5756         h += lineH;
5757     }
5758
5759     *width = w;
5760     *height = h;
5761 }
5762
5763 //
5764 // ------ Batch processing.
5765 //
5766 void wxGrid::EndBatch()
5767 {
5768     if ( m_batchCount > 0 )
5769     {
5770         m_batchCount--;
5771         if ( !m_batchCount )
5772         {
5773             CalcDimensions();
5774             m_rowLabelWin->Refresh();
5775             m_colWindow->Refresh();
5776             m_cornerLabelWin->Refresh();
5777             m_gridWin->Refresh();
5778         }
5779     }
5780 }
5781
5782 // Use this, rather than wxWindow::Refresh(), to force an immediate
5783 // repainting of the grid. Has no effect if you are already inside a
5784 // BeginBatch / EndBatch block.
5785 //
5786 void wxGrid::ForceRefresh()
5787 {
5788     BeginBatch();
5789     EndBatch();
5790 }
5791
5792 bool wxGrid::Enable(bool enable)
5793 {
5794     if ( !wxScrolledWindow::Enable(enable) )
5795         return false;
5796
5797     // redraw in the new state
5798     m_gridWin->Refresh();
5799
5800     return true;
5801 }
5802
5803 //
5804 // ------ Edit control functions
5805 //
5806
5807 void wxGrid::EnableEditing( bool edit )
5808 {
5809     if ( edit != m_editable )
5810     {
5811         if (!edit)
5812             EnableCellEditControl(edit);
5813         m_editable = edit;
5814     }
5815 }
5816
5817 void wxGrid::EnableCellEditControl( bool enable )
5818 {
5819     if (! m_editable)
5820         return;
5821
5822     if ( enable != m_cellEditCtrlEnabled )
5823     {
5824         if ( enable )
5825         {
5826             if ( SendEvent(wxEVT_GRID_EDITOR_SHOWN) == -1 )
5827                 return;
5828
5829             // this should be checked by the caller!
5830             wxASSERT_MSG( CanEnableCellControl(), wxT("can't enable editing for this cell!") );
5831
5832             // do it before ShowCellEditControl()
5833             m_cellEditCtrlEnabled = enable;
5834
5835             ShowCellEditControl();
5836         }
5837         else
5838         {
5839             SendEvent(wxEVT_GRID_EDITOR_HIDDEN);
5840
5841             HideCellEditControl();
5842             SaveEditControlValue();
5843
5844             // do it after HideCellEditControl()
5845             m_cellEditCtrlEnabled = enable;
5846         }
5847     }
5848 }
5849
5850 bool wxGrid::IsCurrentCellReadOnly() const
5851 {
5852     // const_cast
5853     wxGridCellAttr* attr = ((wxGrid *)this)->GetCellAttr(m_currentCellCoords);
5854     bool readonly = attr->IsReadOnly();
5855     attr->DecRef();
5856
5857     return readonly;
5858 }
5859
5860 bool wxGrid::CanEnableCellControl() const
5861 {
5862     return m_editable && (m_currentCellCoords != wxGridNoCellCoords) &&
5863         !IsCurrentCellReadOnly();
5864 }
5865
5866 bool wxGrid::IsCellEditControlEnabled() const
5867 {
5868     // the cell edit control might be disable for all cells or just for the
5869     // current one if it's read only
5870     return m_cellEditCtrlEnabled ? !IsCurrentCellReadOnly() : false;
5871 }
5872
5873 bool wxGrid::IsCellEditControlShown() const
5874 {
5875     bool isShown = false;
5876
5877     if ( m_cellEditCtrlEnabled )
5878     {
5879         int row = m_currentCellCoords.GetRow();
5880         int col = m_currentCellCoords.GetCol();
5881         wxGridCellAttr* attr = GetCellAttr(row, col);
5882         wxGridCellEditor* editor = attr->GetEditor((wxGrid*) this, row, col);
5883         attr->DecRef();
5884
5885         if ( editor )
5886         {
5887             if ( editor->IsCreated() )
5888             {
5889                 isShown = editor->GetControl()->IsShown();
5890             }
5891
5892             editor->DecRef();
5893         }
5894     }
5895
5896     return isShown;
5897 }
5898
5899 void wxGrid::ShowCellEditControl()
5900 {
5901     if ( IsCellEditControlEnabled() )
5902     {
5903         if ( !IsVisible( m_currentCellCoords, false ) )
5904         {
5905             m_cellEditCtrlEnabled = false;
5906             return;
5907         }
5908         else
5909         {
5910             wxRect rect = CellToRect( m_currentCellCoords );
5911             int row = m_currentCellCoords.GetRow();
5912             int col = m_currentCellCoords.GetCol();
5913
5914             // if this is part of a multicell, find owner (topleft)
5915             int cell_rows, cell_cols;
5916             GetCellSize( row, col, &cell_rows, &cell_cols );
5917             if ( cell_rows <= 0 || cell_cols <= 0 )
5918             {
5919                 row += cell_rows;
5920                 col += cell_cols;
5921                 m_currentCellCoords.SetRow( row );
5922                 m_currentCellCoords.SetCol( col );
5923             }
5924
5925             // erase the highlight and the cell contents because the editor
5926             // might not cover the entire cell
5927             wxClientDC dc( m_gridWin );
5928             PrepareDC( dc );
5929             wxGridCellAttr* attr = GetCellAttr(row, col);
5930             dc.SetBrush(wxBrush(attr->GetBackgroundColour()));
5931             dc.SetPen(*wxTRANSPARENT_PEN);
5932             dc.DrawRectangle(rect);
5933
5934             // convert to scrolled coords
5935             CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
5936
5937             int nXMove = 0;
5938             if (rect.x < 0)
5939                 nXMove = rect.x;
5940
5941             // cell is shifted by one pixel
5942             // However, don't allow x or y to become negative
5943             // since the SetSize() method interprets that as
5944             // "don't change."
5945             if (rect.x > 0)
5946                 rect.x--;
5947             if (rect.y > 0)
5948                 rect.y--;
5949
5950             wxGridCellEditor* editor = attr->GetEditor(this, row, col);
5951             if ( !editor->IsCreated() )
5952             {
5953                 editor->Create(m_gridWin, wxID_ANY,
5954                                new wxGridCellEditorEvtHandler(this, editor));
5955
5956                 wxGridEditorCreatedEvent evt(GetId(),
5957                                              wxEVT_GRID_EDITOR_CREATED,
5958                                              this,
5959                                              row,
5960                                              col,
5961                                              editor->GetControl());
5962                 GetEventHandler()->ProcessEvent(evt);
5963             }
5964
5965             // resize editor to overflow into righthand cells if allowed
5966             int maxWidth = rect.width;
5967             wxString value = GetCellValue(row, col);
5968             if ( (value != wxEmptyString) && (attr->GetOverflow()) )
5969             {
5970                 int y;
5971                 GetTextExtent(value, &maxWidth, &y, NULL, NULL, &attr->GetFont());
5972                 if (maxWidth < rect.width)
5973                     maxWidth = rect.width;
5974             }
5975
5976             int client_right = m_gridWin->GetClientSize().GetWidth();
5977             if (rect.x + maxWidth > client_right)
5978                 maxWidth = client_right - rect.x;
5979
5980             if ((maxWidth > rect.width) && (col < m_numCols) && m_table)
5981             {
5982                 GetCellSize( row, col, &cell_rows, &cell_cols );
5983                 // may have changed earlier
5984                 for (int i = col + cell_cols; i < m_numCols; i++)
5985                 {
5986                     int c_rows, c_cols;
5987                     GetCellSize( row, i, &c_rows, &c_cols );
5988
5989                     // looks weird going over a multicell
5990                     if (m_table->IsEmptyCell( row, i ) &&
5991                             (rect.width < maxWidth) && (c_rows == 1))
5992                     {
5993                         rect.width += GetColWidth( i );
5994                     }
5995                     else
5996                         break;
5997                 }
5998
5999                 if (rect.GetRight() > client_right)
6000                     rect.SetRight( client_right - 1 );
6001             }
6002
6003             editor->SetCellAttr( attr );
6004             editor->SetSize( rect );
6005             if (nXMove != 0)
6006                 editor->GetControl()->Move(
6007                     editor->GetControl()->GetPosition().x + nXMove,
6008                     editor->GetControl()->GetPosition().y );
6009             editor->Show( true, attr );
6010
6011             // recalc dimensions in case we need to
6012             // expand the scrolled window to account for editor
6013             CalcDimensions();
6014
6015             editor->BeginEdit(row, col, this);
6016             editor->SetCellAttr(NULL);
6017
6018             editor->DecRef();
6019             attr->DecRef();
6020         }
6021     }
6022 }
6023
6024 void wxGrid::HideCellEditControl()
6025 {
6026     if ( IsCellEditControlEnabled() )
6027     {
6028         int row = m_currentCellCoords.GetRow();
6029         int col = m_currentCellCoords.GetCol();
6030
6031         wxGridCellAttr *attr = GetCellAttr(row, col);
6032         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
6033         const bool editorHadFocus = editor->GetControl()->HasFocus();
6034         editor->Show( false );
6035         editor->DecRef();
6036         attr->DecRef();
6037
6038         // return the focus to the grid itself if the editor had it
6039         //
6040         // note that we must not do this unconditionally to avoid stealing
6041         // focus from the window which just received it if we are hiding the
6042         // editor precisely because we lost focus
6043         if ( editorHadFocus )
6044             m_gridWin->SetFocus();
6045
6046         // refresh whole row to the right
6047         wxRect rect( CellToRect(row, col) );
6048         CalcScrolledPosition(rect.x, rect.y, &rect.x, &rect.y );
6049         rect.width = m_gridWin->GetClientSize().GetWidth() - rect.x;
6050
6051 #ifdef __WXMAC__
6052         // ensure that the pixels under the focus ring get refreshed as well
6053         rect.Inflate(10, 10);
6054 #endif
6055
6056         m_gridWin->Refresh( false, &rect );
6057     }
6058 }
6059
6060 void wxGrid::SaveEditControlValue()
6061 {
6062     if ( IsCellEditControlEnabled() )
6063     {
6064         int row = m_currentCellCoords.GetRow();
6065         int col = m_currentCellCoords.GetCol();
6066
6067         wxString oldval = GetCellValue(row, col);
6068
6069         wxGridCellAttr* attr = GetCellAttr(row, col);
6070         wxGridCellEditor* editor = attr->GetEditor(this, row, col);
6071
6072         wxString newval;
6073         bool changed = editor->EndEdit(row, col, this, oldval, &newval);
6074
6075         if ( changed && SendEvent(wxEVT_GRID_CELL_CHANGING, newval) != -1 )
6076         {
6077             editor->ApplyEdit(row, col, this);
6078
6079             // for compatibility reasons dating back to wx 2.8 when this event
6080             // was called wxEVT_GRID_CELL_CHANGE and wxEVT_GRID_CELL_CHANGING
6081             // didn't exist we allow vetoing this one too
6082             if ( SendEvent(wxEVT_GRID_CELL_CHANGED, oldval) == -1 )
6083             {
6084                 // Event has been vetoed, set the data back.
6085                 SetCellValue(row, col, oldval);
6086             }
6087         }
6088
6089         editor->DecRef();
6090         attr->DecRef();
6091     }
6092 }
6093
6094 //
6095 // ------ Grid location functions
6096 //  Note that all of these functions work with the logical coordinates of
6097 //  grid cells and labels so you will need to convert from device
6098 //  coordinates for mouse events etc.
6099 //
6100
6101 wxGridCellCoords wxGrid::XYToCell(int x, int y) const
6102 {
6103     int row = YToRow(y);
6104     int col = XToCol(x);
6105
6106     return row == -1 || col == -1 ? wxGridNoCellCoords
6107                                   : wxGridCellCoords(row, col);
6108 }
6109
6110 // compute row or column from some (unscrolled) coordinate value, using either
6111 // m_defaultRowHeight/m_defaultColWidth or binary search on array of
6112 // m_rowBottoms/m_colRights to do it quickly (linear search shouldn't be used
6113 // for large grids)
6114 int wxGrid::PosToLinePos(int coord,
6115                          bool clipToMinMax,
6116                          const wxGridOperations& oper) const
6117 {
6118     const int numLines = oper.GetNumberOfLines(this);
6119
6120     if ( coord < 0 )
6121         return clipToMinMax && numLines > 0 ? 0 : wxNOT_FOUND;
6122
6123     const int defaultLineSize = oper.GetDefaultLineSize(this);
6124     wxCHECK_MSG( defaultLineSize, -1, "can't have 0 default line size" );
6125
6126     int maxPos = coord / defaultLineSize,
6127         minPos = 0;
6128
6129     // check for the simplest case: if we have no explicit line sizes
6130     // configured, then we already know the line this position falls in
6131     const wxArrayInt& lineEnds = oper.GetLineEnds(this);
6132     if ( lineEnds.empty() )
6133     {
6134         if ( maxPos < numLines )
6135             return maxPos;
6136
6137         return clipToMinMax ? numLines - 1 : -1;
6138     }
6139
6140
6141     // adjust maxPos before starting the binary search
6142     if ( maxPos >= numLines )
6143     {
6144         maxPos = numLines  - 1;
6145     }
6146     else
6147     {
6148         if ( coord >= lineEnds[oper.GetLineAt(this, maxPos)])
6149         {
6150             minPos = maxPos;
6151             const int minDist = oper.GetMinimalAcceptableLineSize(this);
6152             if ( minDist )
6153                 maxPos = coord / minDist;
6154             else
6155                 maxPos = numLines - 1;
6156         }
6157
6158         if ( maxPos >= numLines )
6159             maxPos = numLines  - 1;
6160     }
6161
6162     // check if the position is beyond the last column
6163     const int lineAtMaxPos = oper.GetLineAt(this, maxPos);
6164     if ( coord >= lineEnds[lineAtMaxPos] )
6165         return clipToMinMax ? maxPos : -1;
6166
6167     // or before the first one
6168     const int lineAt0 = oper.GetLineAt(this, 0);
6169     if ( coord < lineEnds[lineAt0] )
6170         return 0;
6171
6172
6173     // finally do perform the binary search
6174     while ( minPos < maxPos )
6175     {
6176         wxCHECK_MSG( lineEnds[oper.GetLineAt(this, minPos)] <= coord &&
6177                         coord < lineEnds[oper.GetLineAt(this, maxPos)],
6178                      -1,
6179                      "wxGrid: internal error in PosToLinePos()" );
6180
6181         if ( coord >= lineEnds[oper.GetLineAt(this, maxPos - 1)] )
6182             return maxPos;
6183         else
6184             maxPos--;
6185
6186         const int median = minPos + (maxPos - minPos + 1) / 2;
6187         if ( coord < lineEnds[oper.GetLineAt(this, median)] )
6188             maxPos = median;
6189         else
6190             minPos = median;
6191     }
6192
6193     return maxPos;
6194 }
6195
6196 int
6197 wxGrid::PosToLine(int coord,
6198                   bool clipToMinMax,
6199                   const wxGridOperations& oper) const
6200 {
6201     int pos = PosToLinePos(coord, clipToMinMax, oper);
6202
6203     return pos == wxNOT_FOUND ? wxNOT_FOUND : oper.GetLineAt(this, pos);
6204 }
6205
6206 int wxGrid::YToRow(int y, bool clipToMinMax) const
6207 {
6208     return PosToLine(y, clipToMinMax, wxGridRowOperations());
6209 }
6210
6211 int wxGrid::XToCol(int x, bool clipToMinMax) const
6212 {
6213     return PosToLine(x, clipToMinMax, wxGridColumnOperations());
6214 }
6215
6216 int wxGrid::XToPos(int x) const
6217 {
6218     return PosToLinePos(x, true /* clip */, wxGridColumnOperations());
6219 }
6220
6221 // return the row number such that the y coord is near the edge of, or -1 if
6222 // not near an edge.
6223 //
6224 // notice that position can only possibly be near an edge if the row/column is
6225 // large enough to still allow for an "inner" area that is _not_ near the edge
6226 // (i.e., if the height/width is smaller than WXGRID_LABEL_EDGE_ZONE, pos will
6227 // _never_ be considered to be near the edge).
6228 int wxGrid::PosToEdgeOfLine(int pos, const wxGridOperations& oper) const
6229 {
6230     const int line = oper.PosToLine(this, pos, true);
6231
6232     if ( oper.GetLineSize(this, line) > WXGRID_LABEL_EDGE_ZONE )
6233     {
6234         // We know that we are in this line, test whether we are close enough
6235         // to start or end border, respectively.
6236         if ( abs(oper.GetLineEndPos(this, line) - pos) < WXGRID_LABEL_EDGE_ZONE )
6237             return line;
6238         else if ( line > 0 &&
6239                     pos - oper.GetLineStartPos(this,
6240                                                line) < WXGRID_LABEL_EDGE_ZONE )
6241             return line - 1;
6242     }
6243
6244     return -1;
6245 }
6246
6247 int wxGrid::YToEdgeOfRow(int y) const
6248 {
6249     return PosToEdgeOfLine(y, wxGridRowOperations());
6250 }
6251
6252 int wxGrid::XToEdgeOfCol(int x) const
6253 {
6254     return PosToEdgeOfLine(x, wxGridColumnOperations());
6255 }
6256
6257 wxRect wxGrid::CellToRect( int row, int col ) const
6258 {
6259     wxRect rect( -1, -1, -1, -1 );
6260
6261     if ( row >= 0 && row < m_numRows &&
6262          col >= 0 && col < m_numCols )
6263     {
6264         int i, cell_rows, cell_cols;
6265         rect.width = rect.height = 0;
6266         GetCellSize( row, col, &cell_rows, &cell_cols );
6267         // if negative then find multicell owner
6268         if (cell_rows < 0)
6269             row += cell_rows;
6270         if (cell_cols < 0)
6271              col += cell_cols;
6272         GetCellSize( row, col, &cell_rows, &cell_cols );
6273
6274         rect.x = GetColLeft(col);
6275         rect.y = GetRowTop(row);
6276         for (i=col; i < col + cell_cols; i++)
6277             rect.width += GetColWidth(i);
6278         for (i=row; i < row + cell_rows; i++)
6279             rect.height += GetRowHeight(i);
6280
6281         // if grid lines are enabled, then the area of the cell is a bit smaller
6282         if (m_gridLinesEnabled)
6283         {
6284             rect.width -= 1;
6285             rect.height -= 1;
6286         }
6287     }
6288
6289     return rect;
6290 }
6291
6292 bool wxGrid::IsVisible( int row, int col, bool wholeCellVisible ) const
6293 {
6294     // get the cell rectangle in logical coords
6295     //
6296     wxRect r( CellToRect( row, col ) );
6297
6298     // convert to device coords
6299     //
6300     int left, top, right, bottom;
6301     CalcScrolledPosition( r.GetLeft(), r.GetTop(), &left, &top );
6302     CalcScrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
6303
6304     // check against the client area of the grid window
6305     int cw, ch;
6306     m_gridWin->GetClientSize( &cw, &ch );
6307
6308     if ( wholeCellVisible )
6309     {
6310         // is the cell wholly visible ?
6311         return ( left >= 0 && right <= cw &&
6312                  top >= 0 && bottom <= ch );
6313     }
6314     else
6315     {
6316         // is the cell partly visible ?
6317         //
6318         return ( ((left >= 0 && left < cw) || (right > 0 && right <= cw)) &&
6319                  ((top >= 0 && top < ch) || (bottom > 0 && bottom <= ch)) );
6320     }
6321 }
6322
6323 // make the specified cell location visible by doing a minimal amount
6324 // of scrolling
6325 //
6326 void wxGrid::MakeCellVisible( int row, int col )
6327 {
6328     int i;
6329     int xpos = -1, ypos = -1;
6330
6331     if ( row >= 0 && row < m_numRows &&
6332          col >= 0 && col < m_numCols )
6333     {
6334         // get the cell rectangle in logical coords
6335         wxRect r( CellToRect( row, col ) );
6336
6337         // convert to device coords
6338         int left, top, right, bottom;
6339         CalcScrolledPosition( r.GetLeft(), r.GetTop(), &left, &top );
6340         CalcScrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
6341
6342         int cw, ch;
6343         m_gridWin->GetClientSize( &cw, &ch );
6344
6345         if ( top < 0 )
6346         {
6347             ypos = r.GetTop();
6348         }
6349         else if ( bottom > ch )
6350         {
6351             int h = r.GetHeight();
6352             ypos = r.GetTop();
6353             for ( i = row - 1; i >= 0; i-- )
6354             {
6355                 int rowHeight = GetRowHeight(i);
6356                 if ( h + rowHeight > ch )
6357                     break;
6358
6359                 h += rowHeight;
6360                 ypos -= rowHeight;
6361             }
6362
6363             // we divide it later by GRID_SCROLL_LINE, make sure that we don't
6364             // have rounding errors (this is important, because if we do,
6365             // we might not scroll at all and some cells won't be redrawn)
6366             //
6367             // Sometimes GRID_SCROLL_LINE / 2 is not enough,
6368             // so just add a full scroll unit...
6369             ypos += m_scrollLineY;
6370         }
6371
6372         // special handling for wide cells - show always left part of the cell!
6373         // Otherwise, e.g. when stepping from row to row, it would jump between
6374         // left and right part of the cell on every step!
6375 //      if ( left < 0 )
6376         if ( left < 0 || (right - left) >= cw )
6377         {
6378             xpos = r.GetLeft();
6379         }
6380         else if ( right > cw )
6381         {
6382             // position the view so that the cell is on the right
6383             int x0, y0;
6384             CalcUnscrolledPosition(0, 0, &x0, &y0);
6385             xpos = x0 + (right - cw);
6386
6387             // see comment for ypos above
6388             xpos += m_scrollLineX;
6389         }
6390
6391         if ( xpos != -1 || ypos != -1 )
6392         {
6393             if ( xpos != -1 )
6394                 xpos /= m_scrollLineX;
6395             if ( ypos != -1 )
6396                 ypos /= m_scrollLineY;
6397             Scroll( xpos, ypos );
6398             AdjustScrollbars();
6399         }
6400     }
6401 }
6402
6403 //
6404 // ------ Grid cursor movement functions
6405 //
6406
6407 bool
6408 wxGrid::DoMoveCursor(bool expandSelection,
6409                      const wxGridDirectionOperations& diroper)
6410 {
6411     if ( m_currentCellCoords == wxGridNoCellCoords )
6412         return false;
6413
6414     if ( expandSelection )
6415     {
6416         wxGridCellCoords coords = m_selectedBlockCorner;
6417         if ( coords == wxGridNoCellCoords )
6418             coords = m_currentCellCoords;
6419
6420         if ( diroper.IsAtBoundary(coords) )
6421             return false;
6422
6423         diroper.Advance(coords);
6424
6425         UpdateBlockBeingSelected(m_currentCellCoords, coords);
6426     }
6427     else // don't expand selection
6428     {
6429         ClearSelection();
6430
6431         if ( diroper.IsAtBoundary(m_currentCellCoords) )
6432             return false;
6433
6434         wxGridCellCoords coords = m_currentCellCoords;
6435         diroper.Advance(coords);
6436
6437         GoToCell(coords);
6438     }
6439
6440     return true;
6441 }
6442
6443 bool wxGrid::MoveCursorUp(bool expandSelection)
6444 {
6445     return DoMoveCursor(expandSelection,
6446                         wxGridBackwardOperations(this, wxGridRowOperations()));
6447 }
6448
6449 bool wxGrid::MoveCursorDown(bool expandSelection)
6450 {
6451     return DoMoveCursor(expandSelection,
6452                         wxGridForwardOperations(this, wxGridRowOperations()));
6453 }
6454
6455 bool wxGrid::MoveCursorLeft(bool expandSelection)
6456 {
6457     return DoMoveCursor(expandSelection,
6458                         wxGridBackwardOperations(this, wxGridColumnOperations()));
6459 }
6460
6461 bool wxGrid::MoveCursorRight(bool expandSelection)
6462 {
6463     return DoMoveCursor(expandSelection,
6464                         wxGridForwardOperations(this, wxGridColumnOperations()));
6465 }
6466
6467 bool wxGrid::DoMoveCursorByPage(const wxGridDirectionOperations& diroper)
6468 {
6469     if ( m_currentCellCoords == wxGridNoCellCoords )
6470         return false;
6471
6472     if ( diroper.IsAtBoundary(m_currentCellCoords) )
6473         return false;
6474
6475     const int oldRow = m_currentCellCoords.GetRow();
6476     int newRow = diroper.MoveByPixelDistance(oldRow, m_gridWin->GetClientSize().y);
6477     if ( newRow == oldRow )
6478     {
6479         wxGridCellCoords coords(m_currentCellCoords);
6480         diroper.Advance(coords);
6481         newRow = coords.GetRow();
6482     }
6483
6484     GoToCell(newRow, m_currentCellCoords.GetCol());
6485
6486     return true;
6487 }
6488
6489 bool wxGrid::MovePageUp()
6490 {
6491     return DoMoveCursorByPage(
6492                 wxGridBackwardOperations(this, wxGridRowOperations()));
6493 }
6494
6495 bool wxGrid::MovePageDown()
6496 {
6497     return DoMoveCursorByPage(
6498                 wxGridForwardOperations(this, wxGridRowOperations()));
6499 }
6500
6501 // helper of DoMoveCursorByBlock(): advance the cell coordinates using diroper
6502 // until we find a non-empty cell or reach the grid end
6503 void
6504 wxGrid::AdvanceToNextNonEmpty(wxGridCellCoords& coords,
6505                               const wxGridDirectionOperations& diroper)
6506 {
6507     while ( !diroper.IsAtBoundary(coords) )
6508     {
6509         diroper.Advance(coords);
6510         if ( !m_table->IsEmpty(coords) )
6511             break;
6512     }
6513 }
6514
6515 bool
6516 wxGrid::DoMoveCursorByBlock(bool expandSelection,
6517                             const wxGridDirectionOperations& diroper)
6518 {
6519     if ( !m_table || m_currentCellCoords == wxGridNoCellCoords )
6520         return false;
6521
6522     if ( diroper.IsAtBoundary(m_currentCellCoords) )
6523         return false;
6524
6525     wxGridCellCoords coords(m_currentCellCoords);
6526     if ( m_table->IsEmpty(coords) )
6527     {
6528         // we are in an empty cell: find the next block of non-empty cells
6529         AdvanceToNextNonEmpty(coords, diroper);
6530     }
6531     else // current cell is not empty
6532     {
6533         diroper.Advance(coords);
6534         if ( m_table->IsEmpty(coords) )
6535         {
6536             // we started at the end of a block, find the next one
6537             AdvanceToNextNonEmpty(coords, diroper);
6538         }
6539         else // we're in a middle of a block
6540         {
6541             // go to the end of it, i.e. find the last cell before the next
6542             // empty one
6543             while ( !diroper.IsAtBoundary(coords) )
6544             {
6545                 wxGridCellCoords coordsNext(coords);
6546                 diroper.Advance(coordsNext);
6547                 if ( m_table->IsEmpty(coordsNext) )
6548                     break;
6549
6550                 coords = coordsNext;
6551             }
6552         }
6553     }
6554
6555     if ( expandSelection )
6556     {
6557         UpdateBlockBeingSelected(m_currentCellCoords, coords);
6558     }
6559     else
6560     {
6561         ClearSelection();
6562         GoToCell(coords);
6563     }
6564
6565     return true;
6566 }
6567
6568 bool wxGrid::MoveCursorUpBlock(bool expandSelection)
6569 {
6570     return DoMoveCursorByBlock(
6571                 expandSelection,
6572                 wxGridBackwardOperations(this, wxGridRowOperations())
6573            );
6574 }
6575
6576 bool wxGrid::MoveCursorDownBlock( bool expandSelection )
6577 {
6578     return DoMoveCursorByBlock(
6579                 expandSelection,
6580                 wxGridForwardOperations(this, wxGridRowOperations())
6581            );
6582 }
6583
6584 bool wxGrid::MoveCursorLeftBlock( bool expandSelection )
6585 {
6586     return DoMoveCursorByBlock(
6587                 expandSelection,
6588                 wxGridBackwardOperations(this, wxGridColumnOperations())
6589            );
6590 }
6591
6592 bool wxGrid::MoveCursorRightBlock( bool expandSelection )
6593 {
6594     return DoMoveCursorByBlock(
6595                 expandSelection,
6596                 wxGridForwardOperations(this, wxGridColumnOperations())
6597            );
6598 }
6599
6600 //
6601 // ------ Label values and formatting
6602 //
6603
6604 void wxGrid::GetRowLabelAlignment( int *horiz, int *vert ) const
6605 {
6606     if ( horiz )
6607         *horiz = m_rowLabelHorizAlign;
6608     if ( vert )
6609         *vert  = m_rowLabelVertAlign;
6610 }
6611
6612 void wxGrid::GetColLabelAlignment( int *horiz, int *vert ) const
6613 {
6614     if ( horiz )
6615         *horiz = m_colLabelHorizAlign;
6616     if ( vert )
6617         *vert  = m_colLabelVertAlign;
6618 }
6619
6620 int wxGrid::GetColLabelTextOrientation() const
6621 {
6622     return m_colLabelTextOrientation;
6623 }
6624
6625 wxString wxGrid::GetRowLabelValue( int row ) const
6626 {
6627     if ( m_table )
6628     {
6629         return m_table->GetRowLabelValue( row );
6630     }
6631     else
6632     {
6633         wxString s;
6634         s << row;
6635         return s;
6636     }
6637 }
6638
6639 wxString wxGrid::GetColLabelValue( int col ) const
6640 {
6641     if ( m_table )
6642     {
6643         return m_table->GetColLabelValue( col );
6644     }
6645     else
6646     {
6647         wxString s;
6648         s << col;
6649         return s;
6650     }
6651 }
6652
6653 void wxGrid::SetRowLabelSize( int width )
6654 {
6655     wxASSERT( width >= 0 || width == wxGRID_AUTOSIZE );
6656
6657     if ( width == wxGRID_AUTOSIZE )
6658     {
6659         width = CalcColOrRowLabelAreaMinSize(wxGRID_ROW);
6660     }
6661
6662     if ( width != m_rowLabelWidth )
6663     {
6664         if ( width == 0 )
6665         {
6666             m_rowLabelWin->Show( false );
6667             m_cornerLabelWin->Show( false );
6668         }
6669         else if ( m_rowLabelWidth == 0 )
6670         {
6671             m_rowLabelWin->Show( true );
6672             if ( m_colLabelHeight > 0 )
6673                 m_cornerLabelWin->Show( true );
6674         }
6675
6676         m_rowLabelWidth = width;
6677         CalcWindowSizes();
6678         wxScrolledWindow::Refresh( true );
6679     }
6680 }
6681
6682 void wxGrid::SetColLabelSize( int height )
6683 {
6684     wxASSERT( height >=0 || height == wxGRID_AUTOSIZE );
6685
6686     if ( height == wxGRID_AUTOSIZE )
6687     {
6688         height = CalcColOrRowLabelAreaMinSize(wxGRID_COLUMN);
6689     }
6690
6691     if ( height != m_colLabelHeight )
6692     {
6693         if ( height == 0 )
6694         {
6695             m_colWindow->Show( false );
6696             m_cornerLabelWin->Show( false );
6697         }
6698         else if ( m_colLabelHeight == 0 )
6699         {
6700             m_colWindow->Show( true );
6701             if ( m_rowLabelWidth > 0 )
6702                 m_cornerLabelWin->Show( true );
6703         }
6704
6705         m_colLabelHeight = height;
6706         CalcWindowSizes();
6707         wxScrolledWindow::Refresh( true );
6708     }
6709 }
6710
6711 void wxGrid::SetLabelBackgroundColour( const wxColour& colour )
6712 {
6713     if ( m_labelBackgroundColour != colour )
6714     {
6715         m_labelBackgroundColour = colour;
6716         m_rowLabelWin->SetBackgroundColour( colour );
6717         m_colWindow->SetBackgroundColour( colour );
6718         m_cornerLabelWin->SetBackgroundColour( colour );
6719
6720         if ( !GetBatchCount() )
6721         {
6722             m_rowLabelWin->Refresh();
6723             m_colWindow->Refresh();
6724             m_cornerLabelWin->Refresh();
6725         }
6726     }
6727 }
6728
6729 void wxGrid::SetLabelTextColour( const wxColour& colour )
6730 {
6731     if ( m_labelTextColour != colour )
6732     {
6733         m_labelTextColour = colour;
6734         if ( !GetBatchCount() )
6735         {
6736             m_rowLabelWin->Refresh();
6737             m_colWindow->Refresh();
6738         }
6739     }
6740 }
6741
6742 void wxGrid::SetLabelFont( const wxFont& font )
6743 {
6744     m_labelFont = font;
6745     if ( !GetBatchCount() )
6746     {
6747         m_rowLabelWin->Refresh();
6748         m_colWindow->Refresh();
6749     }
6750 }
6751
6752 void wxGrid::SetRowLabelAlignment( int horiz, int vert )
6753 {
6754     // allow old (incorrect) defs to be used
6755     switch ( horiz )
6756     {
6757         case wxLEFT:   horiz = wxALIGN_LEFT; break;
6758         case wxRIGHT:  horiz = wxALIGN_RIGHT; break;
6759         case wxCENTRE: horiz = wxALIGN_CENTRE; break;
6760     }
6761
6762     switch ( vert )
6763     {
6764         case wxTOP:    vert = wxALIGN_TOP;    break;
6765         case wxBOTTOM: vert = wxALIGN_BOTTOM; break;
6766         case wxCENTRE: vert = wxALIGN_CENTRE; break;
6767     }
6768
6769     if ( horiz == wxALIGN_LEFT || horiz == wxALIGN_CENTRE || horiz == wxALIGN_RIGHT )
6770     {
6771         m_rowLabelHorizAlign = horiz;
6772     }
6773
6774     if ( vert == wxALIGN_TOP || vert == wxALIGN_CENTRE || vert == wxALIGN_BOTTOM )
6775     {
6776         m_rowLabelVertAlign = vert;
6777     }
6778
6779     if ( !GetBatchCount() )
6780     {
6781         m_rowLabelWin->Refresh();
6782     }
6783 }
6784
6785 void wxGrid::SetColLabelAlignment( int horiz, int vert )
6786 {
6787     // allow old (incorrect) defs to be used
6788     switch ( horiz )
6789     {
6790         case wxLEFT:   horiz = wxALIGN_LEFT; break;
6791         case wxRIGHT:  horiz = wxALIGN_RIGHT; break;
6792         case wxCENTRE: horiz = wxALIGN_CENTRE; break;
6793     }
6794
6795     switch ( vert )
6796     {
6797         case wxTOP:    vert = wxALIGN_TOP;    break;
6798         case wxBOTTOM: vert = wxALIGN_BOTTOM; break;
6799         case wxCENTRE: vert = wxALIGN_CENTRE; break;
6800     }
6801
6802     if ( horiz == wxALIGN_LEFT || horiz == wxALIGN_CENTRE || horiz == wxALIGN_RIGHT )
6803     {
6804         m_colLabelHorizAlign = horiz;
6805     }
6806
6807     if ( vert == wxALIGN_TOP || vert == wxALIGN_CENTRE || vert == wxALIGN_BOTTOM )
6808     {
6809         m_colLabelVertAlign = vert;
6810     }
6811
6812     if ( !GetBatchCount() )
6813     {
6814         m_colWindow->Refresh();
6815     }
6816 }
6817
6818 // Note: under MSW, the default column label font must be changed because it
6819 //       does not support vertical printing
6820 //
6821 // Example: wxFont font(9, wxSWISS, wxNORMAL, wxBOLD);
6822 //                      pGrid->SetLabelFont(font);
6823 //                      pGrid->SetColLabelTextOrientation(wxVERTICAL);
6824 //
6825 void wxGrid::SetColLabelTextOrientation( int textOrientation )
6826 {
6827     if ( textOrientation == wxHORIZONTAL || textOrientation == wxVERTICAL )
6828         m_colLabelTextOrientation = textOrientation;
6829
6830     if ( !GetBatchCount() )
6831         m_colWindow->Refresh();
6832 }
6833
6834 void wxGrid::SetRowLabelValue( int row, const wxString& s )
6835 {
6836     if ( m_table )
6837     {
6838         m_table->SetRowLabelValue( row, s );
6839         if ( !GetBatchCount() )
6840         {
6841             wxRect rect = CellToRect( row, 0 );
6842             if ( rect.height > 0 )
6843             {
6844                 CalcScrolledPosition(0, rect.y, &rect.x, &rect.y);
6845                 rect.x = 0;
6846                 rect.width = m_rowLabelWidth;
6847                 m_rowLabelWin->Refresh( true, &rect );
6848             }
6849         }
6850     }
6851 }
6852
6853 void wxGrid::SetColLabelValue( int col, const wxString& s )
6854 {
6855     if ( m_table )
6856     {
6857         m_table->SetColLabelValue( col, s );
6858         if ( !GetBatchCount() )
6859         {
6860             if ( m_useNativeHeader )
6861             {
6862                 GetGridColHeader()->UpdateColumn(col);
6863             }
6864             else
6865             {
6866                 wxRect rect = CellToRect( 0, col );
6867                 if ( rect.width > 0 )
6868                 {
6869                     CalcScrolledPosition(rect.x, 0, &rect.x, &rect.y);
6870                     rect.y = 0;
6871                     rect.height = m_colLabelHeight;
6872                     GetColLabelWindow()->Refresh( true, &rect );
6873                 }
6874             }
6875         }
6876     }
6877 }
6878
6879 void wxGrid::SetGridLineColour( const wxColour& colour )
6880 {
6881     if ( m_gridLineColour != colour )
6882     {
6883         m_gridLineColour = colour;
6884
6885         if ( GridLinesEnabled() )
6886             RedrawGridLines();
6887     }
6888 }
6889
6890 void wxGrid::SetCellHighlightColour( const wxColour& colour )
6891 {
6892     if ( m_cellHighlightColour != colour )
6893     {
6894         m_cellHighlightColour = colour;
6895
6896         wxClientDC dc( m_gridWin );
6897         PrepareDC( dc );
6898         wxGridCellAttr* attr = GetCellAttr(m_currentCellCoords);
6899         DrawCellHighlight(dc, attr);
6900         attr->DecRef();
6901     }
6902 }
6903
6904 void wxGrid::SetCellHighlightPenWidth(int width)
6905 {
6906     if (m_cellHighlightPenWidth != width)
6907     {
6908         m_cellHighlightPenWidth = width;
6909
6910         // Just redrawing the cell highlight is not enough since that won't
6911         // make any visible change if the the thickness is getting smaller.
6912         int row = m_currentCellCoords.GetRow();
6913         int col = m_currentCellCoords.GetCol();
6914         if ( row == -1 || col == -1 || GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
6915             return;
6916
6917         wxRect rect = CellToRect(row, col);
6918         m_gridWin->Refresh(true, &rect);
6919     }
6920 }
6921
6922 void wxGrid::SetCellHighlightROPenWidth(int width)
6923 {
6924     if (m_cellHighlightROPenWidth != width)
6925     {
6926         m_cellHighlightROPenWidth = width;
6927
6928         // Just redrawing the cell highlight is not enough since that won't
6929         // make any visible change if the the thickness is getting smaller.
6930         int row = m_currentCellCoords.GetRow();
6931         int col = m_currentCellCoords.GetCol();
6932         if ( row == -1 || col == -1 ||
6933                 GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
6934             return;
6935
6936         wxRect rect = CellToRect(row, col);
6937         m_gridWin->Refresh(true, &rect);
6938     }
6939 }
6940
6941 void wxGrid::RedrawGridLines()
6942 {
6943     // the lines will be redrawn when the window is thawn
6944     if ( GetBatchCount() )
6945         return;
6946
6947     if ( GridLinesEnabled() )
6948     {
6949         wxClientDC dc( m_gridWin );
6950         PrepareDC( dc );
6951         DrawAllGridLines( dc, wxRegion() );
6952     }
6953     else // remove the grid lines
6954     {
6955         m_gridWin->Refresh();
6956     }
6957 }
6958
6959 void wxGrid::EnableGridLines( bool enable )
6960 {
6961     if ( enable != m_gridLinesEnabled )
6962     {
6963         m_gridLinesEnabled = enable;
6964
6965         RedrawGridLines();
6966     }
6967 }
6968
6969 void wxGrid::DoClipGridLines(bool& var, bool clip)
6970 {
6971     if ( clip != var )
6972     {
6973         var = clip;
6974
6975         if ( GridLinesEnabled() )
6976             RedrawGridLines();
6977     }
6978 }
6979
6980 int wxGrid::GetDefaultRowSize() const
6981 {
6982     return m_defaultRowHeight;
6983 }
6984
6985 int wxGrid::GetRowSize( int row ) const
6986 {
6987     wxCHECK_MSG( row >= 0 && row < m_numRows, 0, wxT("invalid row index") );
6988
6989     return GetRowHeight(row);
6990 }
6991
6992 int wxGrid::GetDefaultColSize() const
6993 {
6994     return m_defaultColWidth;
6995 }
6996
6997 int wxGrid::GetColSize( int col ) const
6998 {
6999     wxCHECK_MSG( col >= 0 && col < m_numCols, 0, wxT("invalid column index") );
7000
7001     return GetColWidth(col);
7002 }
7003
7004 // ============================================================================
7005 // access to the grid attributes: each of them has a default value in the grid
7006 // itself and may be overidden on a per-cell basis
7007 // ============================================================================
7008
7009 // ----------------------------------------------------------------------------
7010 // setting default attributes
7011 // ----------------------------------------------------------------------------
7012
7013 void wxGrid::SetDefaultCellBackgroundColour( const wxColour& col )
7014 {
7015     m_defaultCellAttr->SetBackgroundColour(col);
7016 #ifdef __WXGTK__
7017     m_gridWin->SetBackgroundColour(col);
7018 #endif
7019 }
7020
7021 void wxGrid::SetDefaultCellTextColour( const wxColour& col )
7022 {
7023     m_defaultCellAttr->SetTextColour(col);
7024 }
7025
7026 void wxGrid::SetDefaultCellAlignment( int horiz, int vert )
7027 {
7028     m_defaultCellAttr->SetAlignment(horiz, vert);
7029 }
7030
7031 void wxGrid::SetDefaultCellOverflow( bool allow )
7032 {
7033     m_defaultCellAttr->SetOverflow(allow);
7034 }
7035
7036 void wxGrid::SetDefaultCellFont( const wxFont& font )
7037 {
7038     m_defaultCellAttr->SetFont(font);
7039 }
7040
7041 // For editors and renderers the type registry takes precedence over the
7042 // default attr, so we need to register the new editor/renderer for the string
7043 // data type in order to make setting a default editor/renderer appear to
7044 // work correctly.
7045
7046 void wxGrid::SetDefaultRenderer(wxGridCellRenderer *renderer)
7047 {
7048     RegisterDataType(wxGRID_VALUE_STRING,
7049                      renderer,
7050                      GetDefaultEditorForType(wxGRID_VALUE_STRING));
7051 }
7052
7053 void wxGrid::SetDefaultEditor(wxGridCellEditor *editor)
7054 {
7055     RegisterDataType(wxGRID_VALUE_STRING,
7056                      GetDefaultRendererForType(wxGRID_VALUE_STRING),
7057                      editor);
7058 }
7059
7060 // ----------------------------------------------------------------------------
7061 // access to the default attributes
7062 // ----------------------------------------------------------------------------
7063
7064 wxColour wxGrid::GetDefaultCellBackgroundColour() const
7065 {
7066     return m_defaultCellAttr->GetBackgroundColour();
7067 }
7068
7069 wxColour wxGrid::GetDefaultCellTextColour() const
7070 {
7071     return m_defaultCellAttr->GetTextColour();
7072 }
7073
7074 wxFont wxGrid::GetDefaultCellFont() const
7075 {
7076     return m_defaultCellAttr->GetFont();
7077 }
7078
7079 void wxGrid::GetDefaultCellAlignment( int *horiz, int *vert ) const
7080 {
7081     m_defaultCellAttr->GetAlignment(horiz, vert);
7082 }
7083
7084 bool wxGrid::GetDefaultCellOverflow() const
7085 {
7086     return m_defaultCellAttr->GetOverflow();
7087 }
7088
7089 wxGridCellRenderer *wxGrid::GetDefaultRenderer() const
7090 {
7091     return m_defaultCellAttr->GetRenderer(NULL, 0, 0);
7092 }
7093
7094 wxGridCellEditor *wxGrid::GetDefaultEditor() const
7095 {
7096     return m_defaultCellAttr->GetEditor(NULL, 0, 0);
7097 }
7098
7099 // ----------------------------------------------------------------------------
7100 // access to cell attributes
7101 // ----------------------------------------------------------------------------
7102
7103 wxColour wxGrid::GetCellBackgroundColour(int row, int col) const
7104 {
7105     wxGridCellAttr *attr = GetCellAttr(row, col);
7106     wxColour colour = attr->GetBackgroundColour();
7107     attr->DecRef();
7108
7109     return colour;
7110 }
7111
7112 wxColour wxGrid::GetCellTextColour( int row, int col ) const
7113 {
7114     wxGridCellAttr *attr = GetCellAttr(row, col);
7115     wxColour colour = attr->GetTextColour();
7116     attr->DecRef();
7117
7118     return colour;
7119 }
7120
7121 wxFont wxGrid::GetCellFont( int row, int col ) const
7122 {
7123     wxGridCellAttr *attr = GetCellAttr(row, col);
7124     wxFont font = attr->GetFont();
7125     attr->DecRef();
7126
7127     return font;
7128 }
7129
7130 void wxGrid::GetCellAlignment( int row, int col, int *horiz, int *vert ) const
7131 {
7132     wxGridCellAttr *attr = GetCellAttr(row, col);
7133     attr->GetAlignment(horiz, vert);
7134     attr->DecRef();
7135 }
7136
7137 bool wxGrid::GetCellOverflow( int row, int col ) const
7138 {
7139     wxGridCellAttr *attr = GetCellAttr(row, col);
7140     bool allow = attr->GetOverflow();
7141     attr->DecRef();
7142
7143     return allow;
7144 }
7145
7146 wxGrid::CellSpan
7147 wxGrid::GetCellSize( int row, int col, int *num_rows, int *num_cols ) const
7148 {
7149     wxGridCellAttr *attr = GetCellAttr(row, col);
7150     attr->GetSize( num_rows, num_cols );
7151     attr->DecRef();
7152
7153     if ( *num_rows == 1 && *num_cols == 1 )
7154         return CellSpan_None; // just a normal cell
7155
7156     if ( *num_rows < 0 || *num_cols < 0 )
7157         return CellSpan_Inside; // covered by a multi-span cell
7158
7159     // this cell spans multiple cells to its right/bottom
7160     return CellSpan_Main;
7161 }
7162
7163 wxGridCellRenderer* wxGrid::GetCellRenderer(int row, int col) const
7164 {
7165     wxGridCellAttr* attr = GetCellAttr(row, col);
7166     wxGridCellRenderer* renderer = attr->GetRenderer(this, row, col);
7167     attr->DecRef();
7168
7169     return renderer;
7170 }
7171
7172 wxGridCellEditor* wxGrid::GetCellEditor(int row, int col) const
7173 {
7174     wxGridCellAttr* attr = GetCellAttr(row, col);
7175     wxGridCellEditor* editor = attr->GetEditor(this, row, col);
7176     attr->DecRef();
7177
7178     return editor;
7179 }
7180
7181 bool wxGrid::IsReadOnly(int row, int col) const
7182 {
7183     wxGridCellAttr* attr = GetCellAttr(row, col);
7184     bool isReadOnly = attr->IsReadOnly();
7185     attr->DecRef();
7186
7187     return isReadOnly;
7188 }
7189
7190 // ----------------------------------------------------------------------------
7191 // attribute support: cache, automatic provider creation, ...
7192 // ----------------------------------------------------------------------------
7193
7194 bool wxGrid::CanHaveAttributes() const
7195 {
7196     if ( !m_table )
7197     {
7198         return false;
7199     }
7200
7201     return m_table->CanHaveAttributes();
7202 }
7203
7204 void wxGrid::ClearAttrCache()
7205 {
7206     if ( m_attrCache.row != -1 )
7207     {
7208         wxGridCellAttr *oldAttr = m_attrCache.attr;
7209         m_attrCache.attr = NULL;
7210         m_attrCache.row = -1;
7211         // wxSafeDecRec(...) might cause event processing that accesses
7212         // the cached attribute, if one exists (e.g. by deleting the
7213         // editor stored within the attribute). Therefore it is important
7214         // to invalidate the cache  before calling wxSafeDecRef!
7215         wxSafeDecRef(oldAttr);
7216     }
7217 }
7218
7219 void wxGrid::CacheAttr(int row, int col, wxGridCellAttr *attr) const
7220 {
7221     if ( attr != NULL )
7222     {
7223         wxGrid *self = (wxGrid *)this;  // const_cast
7224
7225         self->ClearAttrCache();
7226         self->m_attrCache.row = row;
7227         self->m_attrCache.col = col;
7228         self->m_attrCache.attr = attr;
7229         wxSafeIncRef(attr);
7230     }
7231 }
7232
7233 bool wxGrid::LookupAttr(int row, int col, wxGridCellAttr **attr) const
7234 {
7235     if ( row == m_attrCache.row && col == m_attrCache.col )
7236     {
7237         *attr = m_attrCache.attr;
7238         wxSafeIncRef(m_attrCache.attr);
7239
7240 #ifdef DEBUG_ATTR_CACHE
7241         gs_nAttrCacheHits++;
7242 #endif
7243
7244         return true;
7245     }
7246     else
7247     {
7248 #ifdef DEBUG_ATTR_CACHE
7249         gs_nAttrCacheMisses++;
7250 #endif
7251
7252         return false;
7253     }
7254 }
7255
7256 wxGridCellAttr *wxGrid::GetCellAttr(int row, int col) const
7257 {
7258     wxGridCellAttr *attr = NULL;
7259     // Additional test to avoid looking at the cache e.g. for
7260     // wxNoCellCoords, as this will confuse memory management.
7261     if ( row >= 0 )
7262     {
7263         if ( !LookupAttr(row, col, &attr) )
7264         {
7265             attr = m_table ? m_table->GetAttr(row, col, wxGridCellAttr::Any)
7266                            : NULL;
7267             CacheAttr(row, col, attr);
7268         }
7269     }
7270
7271     if (attr)
7272     {
7273         attr->SetDefAttr(m_defaultCellAttr);
7274     }
7275     else
7276     {
7277         attr = m_defaultCellAttr;
7278         attr->IncRef();
7279     }
7280
7281     return attr;
7282 }
7283
7284 wxGridCellAttr *wxGrid::GetOrCreateCellAttr(int row, int col) const
7285 {
7286     wxGridCellAttr *attr = NULL;
7287     bool canHave = ((wxGrid*)this)->CanHaveAttributes();
7288
7289     wxCHECK_MSG( canHave, attr, wxT("Cell attributes not allowed"));
7290     wxCHECK_MSG( m_table, attr, wxT("must have a table") );
7291
7292     attr = m_table->GetAttr(row, col, wxGridCellAttr::Cell);
7293     if ( !attr )
7294     {
7295         attr = new wxGridCellAttr(m_defaultCellAttr);
7296
7297         // artificially inc the ref count to match DecRef() in caller
7298         attr->IncRef();
7299         m_table->SetAttr(attr, row, col);
7300     }
7301
7302     return attr;
7303 }
7304
7305 // ----------------------------------------------------------------------------
7306 // setting column attributes (wrappers around SetColAttr)
7307 // ----------------------------------------------------------------------------
7308
7309 void wxGrid::SetColFormatBool(int col)
7310 {
7311     SetColFormatCustom(col, wxGRID_VALUE_BOOL);
7312 }
7313
7314 void wxGrid::SetColFormatNumber(int col)
7315 {
7316     SetColFormatCustom(col, wxGRID_VALUE_NUMBER);
7317 }
7318
7319 void wxGrid::SetColFormatFloat(int col, int width, int precision)
7320 {
7321     wxString typeName = wxGRID_VALUE_FLOAT;
7322     if ( (width != -1) || (precision != -1) )
7323     {
7324         typeName << wxT(':') << width << wxT(',') << precision;
7325     }
7326
7327     SetColFormatCustom(col, typeName);
7328 }
7329
7330 void wxGrid::SetColFormatCustom(int col, const wxString& typeName)
7331 {
7332     wxGridCellAttr *attr = m_table->GetAttr(-1, col, wxGridCellAttr::Col );
7333     if (!attr)
7334         attr = new wxGridCellAttr;
7335     wxGridCellRenderer *renderer = GetDefaultRendererForType(typeName);
7336     attr->SetRenderer(renderer);
7337     wxGridCellEditor *editor = GetDefaultEditorForType(typeName);
7338     attr->SetEditor(editor);
7339
7340     SetColAttr(col, attr);
7341
7342 }
7343
7344 // ----------------------------------------------------------------------------
7345 // setting cell attributes: this is forwarded to the table
7346 // ----------------------------------------------------------------------------
7347
7348 void wxGrid::SetAttr(int row, int col, wxGridCellAttr *attr)
7349 {
7350     if ( CanHaveAttributes() )
7351     {
7352         m_table->SetAttr(attr, row, col);
7353         ClearAttrCache();
7354     }
7355     else
7356     {
7357         wxSafeDecRef(attr);
7358     }
7359 }
7360
7361 void wxGrid::SetRowAttr(int row, wxGridCellAttr *attr)
7362 {
7363     if ( CanHaveAttributes() )
7364     {
7365         m_table->SetRowAttr(attr, row);
7366         ClearAttrCache();
7367     }
7368     else
7369     {
7370         wxSafeDecRef(attr);
7371     }
7372 }
7373
7374 void wxGrid::SetColAttr(int col, wxGridCellAttr *attr)
7375 {
7376     if ( CanHaveAttributes() )
7377     {
7378         m_table->SetColAttr(attr, col);
7379         ClearAttrCache();
7380     }
7381     else
7382     {
7383         wxSafeDecRef(attr);
7384     }
7385 }
7386
7387 void wxGrid::SetCellBackgroundColour( int row, int col, const wxColour& colour )
7388 {
7389     if ( CanHaveAttributes() )
7390     {
7391         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7392         attr->SetBackgroundColour(colour);
7393         attr->DecRef();
7394     }
7395 }
7396
7397 void wxGrid::SetCellTextColour( int row, int col, const wxColour& colour )
7398 {
7399     if ( CanHaveAttributes() )
7400     {
7401         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7402         attr->SetTextColour(colour);
7403         attr->DecRef();
7404     }
7405 }
7406
7407 void wxGrid::SetCellFont( int row, int col, const wxFont& font )
7408 {
7409     if ( CanHaveAttributes() )
7410     {
7411         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7412         attr->SetFont(font);
7413         attr->DecRef();
7414     }
7415 }
7416
7417 void wxGrid::SetCellAlignment( int row, int col, int horiz, int vert )
7418 {
7419     if ( CanHaveAttributes() )
7420     {
7421         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7422         attr->SetAlignment(horiz, vert);
7423         attr->DecRef();
7424     }
7425 }
7426
7427 void wxGrid::SetCellOverflow( int row, int col, bool allow )
7428 {
7429     if ( CanHaveAttributes() )
7430     {
7431         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7432         attr->SetOverflow(allow);
7433         attr->DecRef();
7434     }
7435 }
7436
7437 void wxGrid::SetCellSize( int row, int col, int num_rows, int num_cols )
7438 {
7439     if ( CanHaveAttributes() )
7440     {
7441         int cell_rows, cell_cols;
7442
7443         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7444         attr->GetSize(&cell_rows, &cell_cols);
7445         attr->SetSize(num_rows, num_cols);
7446         attr->DecRef();
7447
7448         // Cannot set the size of a cell to 0 or negative values
7449         // While it is perfectly legal to do that, this function cannot
7450         // handle all the possibilies, do it by hand by getting the CellAttr.
7451         // You can only set the size of a cell to 1,1 or greater with this fn
7452         wxASSERT_MSG( !((cell_rows < 1) || (cell_cols < 1)),
7453                       wxT("wxGrid::SetCellSize setting cell size that is already part of another cell"));
7454         wxASSERT_MSG( !((num_rows < 1) || (num_cols < 1)),
7455                       wxT("wxGrid::SetCellSize setting cell size to < 1"));
7456
7457         // if this was already a multicell then "turn off" the other cells first
7458         if ((cell_rows > 1) || (cell_cols > 1))
7459         {
7460             int i, j;
7461             for (j=row; j < row + cell_rows; j++)
7462             {
7463                 for (i=col; i < col + cell_cols; i++)
7464                 {
7465                     if ((i != col) || (j != row))
7466                     {
7467                         wxGridCellAttr *attr_stub = GetOrCreateCellAttr(j, i);
7468                         attr_stub->SetSize( 1, 1 );
7469                         attr_stub->DecRef();
7470                     }
7471                 }
7472             }
7473         }
7474
7475         // mark the cells that will be covered by this cell to
7476         // negative or zero values to point back at this cell
7477         if (((num_rows > 1) || (num_cols > 1)) && (num_rows >= 1) && (num_cols >= 1))
7478         {
7479             int i, j;
7480             for (j=row; j < row + num_rows; j++)
7481             {
7482                 for (i=col; i < col + num_cols; i++)
7483                 {
7484                     if ((i != col) || (j != row))
7485                     {
7486                         wxGridCellAttr *attr_stub = GetOrCreateCellAttr(j, i);
7487                         attr_stub->SetSize( row - j, col - i );
7488                         attr_stub->DecRef();
7489                     }
7490                 }
7491             }
7492         }
7493     }
7494 }
7495
7496 void wxGrid::SetCellRenderer(int row, int col, wxGridCellRenderer *renderer)
7497 {
7498     if ( CanHaveAttributes() )
7499     {
7500         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7501         attr->SetRenderer(renderer);
7502         attr->DecRef();
7503     }
7504 }
7505
7506 void wxGrid::SetCellEditor(int row, int col, wxGridCellEditor* editor)
7507 {
7508     if ( CanHaveAttributes() )
7509     {
7510         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7511         attr->SetEditor(editor);
7512         attr->DecRef();
7513     }
7514 }
7515
7516 void wxGrid::SetReadOnly(int row, int col, bool isReadOnly)
7517 {
7518     if ( CanHaveAttributes() )
7519     {
7520         wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
7521         attr->SetReadOnly(isReadOnly);
7522         attr->DecRef();
7523     }
7524 }
7525
7526 // ----------------------------------------------------------------------------
7527 // Data type registration
7528 // ----------------------------------------------------------------------------
7529
7530 void wxGrid::RegisterDataType(const wxString& typeName,
7531                               wxGridCellRenderer* renderer,
7532                               wxGridCellEditor* editor)
7533 {
7534     m_typeRegistry->RegisterDataType(typeName, renderer, editor);
7535 }
7536
7537
7538 wxGridCellEditor * wxGrid::GetDefaultEditorForCell(int row, int col) const
7539 {
7540     wxString typeName = m_table->GetTypeName(row, col);
7541     return GetDefaultEditorForType(typeName);
7542 }
7543
7544 wxGridCellRenderer * wxGrid::GetDefaultRendererForCell(int row, int col) const
7545 {
7546     wxString typeName = m_table->GetTypeName(row, col);
7547     return GetDefaultRendererForType(typeName);
7548 }
7549
7550 wxGridCellEditor * wxGrid::GetDefaultEditorForType(const wxString& typeName) const
7551 {
7552     int index = m_typeRegistry->FindOrCloneDataType(typeName);
7553     if ( index == wxNOT_FOUND )
7554     {
7555         wxFAIL_MSG(wxString::Format(wxT("Unknown data type name [%s]"), typeName.c_str()));
7556
7557         return NULL;
7558     }
7559
7560     return m_typeRegistry->GetEditor(index);
7561 }
7562
7563 wxGridCellRenderer * wxGrid::GetDefaultRendererForType(const wxString& typeName) const
7564 {
7565     int index = m_typeRegistry->FindOrCloneDataType(typeName);
7566     if ( index == wxNOT_FOUND )
7567     {
7568         wxFAIL_MSG(wxString::Format(wxT("Unknown data type name [%s]"), typeName.c_str()));
7569
7570         return NULL;
7571     }
7572
7573     return m_typeRegistry->GetRenderer(index);
7574 }
7575
7576 // ----------------------------------------------------------------------------
7577 // row/col size
7578 // ----------------------------------------------------------------------------
7579
7580 void wxGrid::DoDisableLineResize(int line, wxGridFixedIndicesSet *& setFixed)
7581 {
7582     if ( !setFixed )
7583     {
7584         setFixed = new wxGridFixedIndicesSet;
7585     }
7586
7587     setFixed->insert(line);
7588 }
7589
7590 bool
7591 wxGrid::DoCanResizeLine(int line, const wxGridFixedIndicesSet *setFixed) const
7592 {
7593     return !setFixed || !setFixed->count(line);
7594 }
7595
7596 void wxGrid::EnableDragRowSize( bool enable )
7597 {
7598     m_canDragRowSize = enable;
7599 }
7600
7601 void wxGrid::EnableDragColSize( bool enable )
7602 {
7603     m_canDragColSize = enable;
7604 }
7605
7606 void wxGrid::EnableDragGridSize( bool enable )
7607 {
7608     m_canDragGridSize = enable;
7609 }
7610
7611 void wxGrid::EnableDragCell( bool enable )
7612 {
7613     m_canDragCell = enable;
7614 }
7615
7616 void wxGrid::SetDefaultRowSize( int height, bool resizeExistingRows )
7617 {
7618     m_defaultRowHeight = wxMax( height, m_minAcceptableRowHeight );
7619
7620     if ( resizeExistingRows )
7621     {
7622         // since we are resizing all rows to the default row size,
7623         // we can simply clear the row heights and row bottoms
7624         // arrays (which also allows us to take advantage of
7625         // some speed optimisations)
7626         m_rowHeights.Empty();
7627         m_rowBottoms.Empty();
7628         if ( !GetBatchCount() )
7629             CalcDimensions();
7630     }
7631 }
7632
7633 void wxGrid::SetRowSize( int row, int height )
7634 {
7635     wxCHECK_RET( row >= 0 && row < m_numRows, wxT("invalid row index") );
7636
7637     // if < 0 then calculate new height from label
7638     if ( height < 0 )
7639     {
7640         long w, h;
7641         wxArrayString lines;
7642         wxClientDC dc(m_rowLabelWin);
7643         dc.SetFont(GetLabelFont());
7644         StringToLines(GetRowLabelValue( row ), lines);
7645         GetTextBoxSize( dc, lines, &w, &h );
7646         //check that it is not less than the minimal height
7647         height = wxMax(h, GetRowMinimalAcceptableHeight());
7648     }
7649
7650     // See comment in SetColSize
7651     if ( height < GetRowMinimalAcceptableHeight())
7652         return;
7653
7654     if ( m_rowHeights.IsEmpty() )
7655     {
7656         // need to really create the array
7657         InitRowHeights();
7658     }
7659
7660     int h = wxMax( 0, height );
7661     int diff = h - m_rowHeights[row];
7662
7663     m_rowHeights[row] = h;
7664     for ( int i = row; i < m_numRows; i++ )
7665     {
7666         m_rowBottoms[i] += diff;
7667     }
7668
7669     if ( !GetBatchCount() )
7670         CalcDimensions();
7671 }
7672
7673 void wxGrid::SetDefaultColSize( int width, bool resizeExistingCols )
7674 {
7675     // we dont allow zero default column width
7676     m_defaultColWidth = wxMax( wxMax( width, m_minAcceptableColWidth ), 1 );
7677
7678     if ( resizeExistingCols )
7679     {
7680         // since we are resizing all columns to the default column size,
7681         // we can simply clear the col widths and col rights
7682         // arrays (which also allows us to take advantage of
7683         // some speed optimisations)
7684         m_colWidths.Empty();
7685         m_colRights.Empty();
7686         if ( !GetBatchCount() )
7687             CalcDimensions();
7688     }
7689 }
7690
7691 void wxGrid::SetColSize( int col, int width )
7692 {
7693     wxCHECK_RET( col >= 0 && col < m_numCols, wxT("invalid column index") );
7694
7695     // if < 0 then calculate new width from label
7696     if ( width < 0 )
7697     {
7698         long w, h;
7699         wxArrayString lines;
7700         wxClientDC dc(m_colWindow);
7701         dc.SetFont(GetLabelFont());
7702         StringToLines(GetColLabelValue(col), lines);
7703         if ( GetColLabelTextOrientation() == wxHORIZONTAL )
7704             GetTextBoxSize( dc, lines, &w, &h );
7705         else
7706             GetTextBoxSize( dc, lines, &h, &w );
7707         width = w + 6;
7708         //check that it is not less than the minimal width
7709         width = wxMax(width, GetColMinimalAcceptableWidth());
7710     }
7711
7712     // we intentionally don't test whether the width is less than
7713     // GetColMinimalWidth() here but we do compare it with
7714     // GetColMinimalAcceptableWidth() as otherwise things currently break (see
7715     // #651) -- and we also always allow the width of 0 as it has the special
7716     // sense of hiding the column
7717     if ( width > 0 && width < GetColMinimalAcceptableWidth() )
7718         return;
7719
7720     if ( m_colWidths.IsEmpty() )
7721     {
7722         // need to really create the array
7723         InitColWidths();
7724     }
7725
7726     const int diff = width - m_colWidths[col];
7727     m_colWidths[col] = width;
7728     if ( m_useNativeHeader )
7729         GetGridColHeader()->UpdateColumn(col);
7730     //else: will be refreshed when the header is redrawn
7731
7732     for ( int colPos = GetColPos(col); colPos < m_numCols; colPos++ )
7733     {
7734         m_colRights[GetColAt(colPos)] += diff;
7735     }
7736
7737     if ( !GetBatchCount() )
7738     {
7739         CalcDimensions();
7740         Refresh();
7741     }
7742 }
7743
7744 void wxGrid::SetColMinimalWidth( int col, int width )
7745 {
7746     if (width > GetColMinimalAcceptableWidth())
7747     {
7748         wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)col;
7749         m_colMinWidths[key] = width;
7750     }
7751 }
7752
7753 void wxGrid::SetRowMinimalHeight( int row, int width )
7754 {
7755     if (width > GetRowMinimalAcceptableHeight())
7756     {
7757         wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)row;
7758         m_rowMinHeights[key] = width;
7759     }
7760 }
7761
7762 int wxGrid::GetColMinimalWidth(int col) const
7763 {
7764     wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)col;
7765     wxLongToLongHashMap::const_iterator it = m_colMinWidths.find(key);
7766
7767     return it != m_colMinWidths.end() ? (int)it->second : m_minAcceptableColWidth;
7768 }
7769
7770 int wxGrid::GetRowMinimalHeight(int row) const
7771 {
7772     wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)row;
7773     wxLongToLongHashMap::const_iterator it = m_rowMinHeights.find(key);
7774
7775     return it != m_rowMinHeights.end() ? (int)it->second : m_minAcceptableRowHeight;
7776 }
7777
7778 void wxGrid::SetColMinimalAcceptableWidth( int width )
7779 {
7780     // We do allow a width of 0 since this gives us
7781     // an easy way to temporarily hiding columns.
7782     if ( width >= 0 )
7783         m_minAcceptableColWidth = width;
7784 }
7785
7786 void wxGrid::SetRowMinimalAcceptableHeight( int height )
7787 {
7788     // We do allow a height of 0 since this gives us
7789     // an easy way to temporarily hiding rows.
7790     if ( height >= 0 )
7791         m_minAcceptableRowHeight = height;
7792 }
7793
7794 int  wxGrid::GetColMinimalAcceptableWidth() const
7795 {
7796     return m_minAcceptableColWidth;
7797 }
7798
7799 int  wxGrid::GetRowMinimalAcceptableHeight() const
7800 {
7801     return m_minAcceptableRowHeight;
7802 }
7803
7804 // ----------------------------------------------------------------------------
7805 // auto sizing
7806 // ----------------------------------------------------------------------------
7807
7808 void
7809 wxGrid::AutoSizeColOrRow(int colOrRow, bool setAsMin, wxGridDirection direction)
7810 {
7811     const bool column = direction == wxGRID_COLUMN;
7812
7813     wxClientDC dc(m_gridWin);
7814
7815     // cancel editing of cell
7816     HideCellEditControl();
7817     SaveEditControlValue();
7818
7819     // initialize both of them just to avoid compiler warnings
7820     int row = -1,
7821         col = -1;
7822
7823     wxCoord extent, extentMax = 0;
7824     int max = column ? m_numRows : m_numCols;
7825     for ( int rowOrCol = 0; rowOrCol < max; rowOrCol++ )
7826     {
7827         if ( column )
7828         {
7829             row = rowOrCol;
7830             col = colOrRow;
7831         }
7832         else
7833         {
7834             row = colOrRow;
7835             col = rowOrCol;
7836         }
7837
7838         // we need to account for the cells spanning multiple columns/rows:
7839         // while they may need a lot of space, they don't need all of it in
7840         // this column/row
7841         int numRows, numCols;
7842         const CellSpan span = GetCellSize(row, col, &numRows, &numCols);
7843         if ( span == CellSpan_Inside )
7844         {
7845             // we need to get the size of the main cell, not of a cell hidden
7846             // by it
7847             row += numRows;
7848             col += numCols;
7849
7850             // get the size of the main cell too
7851             GetCellSize(row, col, &numRows, &numCols);
7852         }
7853
7854         wxGridCellAttr *attr = GetCellAttr(row, col);
7855         wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
7856         if ( renderer )
7857         {
7858             wxSize size = renderer->GetBestSize(*this, *attr, dc, row, col);
7859             extent = column ? size.x : size.y;
7860
7861             if ( span != CellSpan_None )
7862             {
7863                 // we spread the size of a spanning cell over all the cells it
7864                 // covers evenly -- this is probably not ideal but we can't
7865                 // really do much better here
7866                 //
7867                 // notice that numCols and numRows are never 0 as they
7868                 // correspond to the size of the main cell of the span and not
7869                 // of the cell inside it
7870                 extent /= column ? numCols : numRows;
7871             }
7872
7873             if ( extent > extentMax )
7874                 extentMax = extent;
7875
7876             renderer->DecRef();
7877         }
7878
7879         attr->DecRef();
7880     }
7881
7882     // now also compare with the column label extent
7883     wxCoord w, h;
7884     dc.SetFont( GetLabelFont() );
7885
7886     if ( column )
7887     {
7888         dc.GetMultiLineTextExtent( GetColLabelValue(col), &w, &h );
7889         if ( GetColLabelTextOrientation() == wxVERTICAL )
7890             w = h;
7891     }
7892     else
7893         dc.GetMultiLineTextExtent( GetRowLabelValue(row), &w, &h );
7894
7895     extent = column ? w : h;
7896     if ( extent > extentMax )
7897         extentMax = extent;
7898
7899     if ( !extentMax )
7900     {
7901         // empty column - give default extent (notice that if extentMax is less
7902         // than default extent but != 0, it's OK)
7903         extentMax = column ? m_defaultColWidth : m_defaultRowHeight;
7904     }
7905     else
7906     {
7907         if ( column )
7908             // leave some space around text
7909             extentMax += 10;
7910         else
7911             extentMax += 6;
7912     }
7913
7914     if ( column )
7915     {
7916         // Ensure automatic width is not less than minimal width. See the
7917         // comment in SetColSize() for explanation of why this isn't done
7918         // in SetColSize().
7919         if ( !setAsMin )
7920             extentMax = wxMax(extentMax, GetColMinimalWidth(col));
7921
7922         SetColSize( col, extentMax );
7923         if ( !GetBatchCount() )
7924         {
7925             if ( m_useNativeHeader )
7926             {
7927                 GetGridColHeader()->UpdateColumn(col);
7928             }
7929             else
7930             {
7931                 int cw, ch, dummy;
7932                 m_gridWin->GetClientSize( &cw, &ch );
7933                 wxRect rect ( CellToRect( 0, col ) );
7934                 rect.y = 0;
7935                 CalcScrolledPosition(rect.x, 0, &rect.x, &dummy);
7936                 rect.width = cw - rect.x;
7937                 rect.height = m_colLabelHeight;
7938                 GetColLabelWindow()->Refresh( true, &rect );
7939             }
7940         }
7941     }
7942     else
7943     {
7944         // Ensure automatic width is not less than minimal height. See the
7945         // comment in SetColSize() for explanation of why this isn't done
7946         // in SetRowSize().
7947         if ( !setAsMin )
7948             extentMax = wxMax(extentMax, GetRowMinimalHeight(row));
7949
7950         SetRowSize(row, extentMax);
7951         if ( !GetBatchCount() )
7952         {
7953             int cw, ch, dummy;
7954             m_gridWin->GetClientSize( &cw, &ch );
7955             wxRect rect( CellToRect( row, 0 ) );
7956             rect.x = 0;
7957             CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
7958             rect.width = m_rowLabelWidth;
7959             rect.height = ch - rect.y;
7960             m_rowLabelWin->Refresh( true, &rect );
7961         }
7962     }
7963
7964     if ( setAsMin )
7965     {
7966         if ( column )
7967             SetColMinimalWidth(col, extentMax);
7968         else
7969             SetRowMinimalHeight(row, extentMax);
7970     }
7971 }
7972
7973 wxCoord wxGrid::CalcColOrRowLabelAreaMinSize(wxGridDirection direction)
7974 {
7975     // calculate size for the rows or columns?
7976     const bool calcRows = direction == wxGRID_ROW;
7977
7978     wxClientDC dc(calcRows ? GetGridRowLabelWindow()
7979                            : GetGridColLabelWindow());
7980     dc.SetFont(GetLabelFont());
7981
7982     // which dimension should we take into account for calculations?
7983     //
7984     // for columns, the text can be only horizontal so it's easy but for rows
7985     // we also have to take into account the text orientation
7986     const bool
7987         useWidth = calcRows || (GetColLabelTextOrientation() == wxVERTICAL);
7988
7989     wxArrayString lines;
7990     wxCoord extentMax = 0;
7991
7992     const int numRowsOrCols = calcRows ? m_numRows : m_numCols;
7993     for ( int rowOrCol = 0; rowOrCol < numRowsOrCols; rowOrCol++ )
7994     {
7995         lines.Clear();
7996
7997         wxString label = calcRows ? GetRowLabelValue(rowOrCol)
7998                                   : GetColLabelValue(rowOrCol);
7999         StringToLines(label, lines);
8000
8001         long w, h;
8002         GetTextBoxSize(dc, lines, &w, &h);
8003
8004         const wxCoord extent = useWidth ? w : h;
8005         if ( extent > extentMax )
8006             extentMax = extent;
8007     }
8008
8009     if ( !extentMax )
8010     {
8011         // empty column - give default extent (notice that if extentMax is less
8012         // than default extent but != 0, it's OK)
8013         extentMax = calcRows ? GetDefaultRowLabelSize()
8014                              : GetDefaultColLabelSize();
8015     }
8016
8017     // leave some space around text (taken from AutoSizeColOrRow)
8018     if ( calcRows )
8019         extentMax += 10;
8020     else
8021         extentMax += 6;
8022
8023     return extentMax;
8024 }
8025
8026 int wxGrid::SetOrCalcColumnSizes(bool calcOnly, bool setAsMin)
8027 {
8028     int width = m_rowLabelWidth;
8029
8030     wxGridUpdateLocker locker;
8031     if(!calcOnly)
8032         locker.Create(this);
8033
8034     for ( int col = 0; col < m_numCols; col++ )
8035     {
8036         if ( !calcOnly )
8037             AutoSizeColumn(col, setAsMin);
8038
8039         width += GetColWidth(col);
8040     }
8041
8042     return width;
8043 }
8044
8045 int wxGrid::SetOrCalcRowSizes(bool calcOnly, bool setAsMin)
8046 {
8047     int height = m_colLabelHeight;
8048
8049     wxGridUpdateLocker locker;
8050     if(!calcOnly)
8051         locker.Create(this);
8052
8053     for ( int row = 0; row < m_numRows; row++ )
8054     {
8055         if ( !calcOnly )
8056             AutoSizeRow(row, setAsMin);
8057
8058         height += GetRowHeight(row);
8059     }
8060
8061     return height;
8062 }
8063
8064 void wxGrid::AutoSize()
8065 {
8066     wxGridUpdateLocker locker(this);
8067
8068     wxSize size(SetOrCalcColumnSizes(false) - m_rowLabelWidth + m_extraWidth,
8069                 SetOrCalcRowSizes(false) - m_colLabelHeight + m_extraHeight);
8070
8071     // we know that we're not going to have scrollbars so disable them now to
8072     // avoid trouble in SetClientSize() which can otherwise set the correct
8073     // client size but also leave space for (not needed any more) scrollbars
8074     SetScrollbars(0, 0, 0, 0, 0, 0, true);
8075
8076     // restore the scroll rate parameters overwritten by SetScrollbars()
8077     SetScrollRate(m_scrollLineX, m_scrollLineY);
8078
8079     SetClientSize(size.x + m_rowLabelWidth, size.y + m_colLabelHeight);
8080 }
8081
8082 void wxGrid::AutoSizeRowLabelSize( int row )
8083 {
8084     // Hide the edit control, so it
8085     // won't interfere with drag-shrinking.
8086     if ( IsCellEditControlShown() )
8087     {
8088         HideCellEditControl();
8089         SaveEditControlValue();
8090     }
8091
8092     // autosize row height depending on label text
8093     SetRowSize(row, -1);
8094     ForceRefresh();
8095 }
8096
8097 void wxGrid::AutoSizeColLabelSize( int col )
8098 {
8099     // Hide the edit control, so it
8100     // won't interfere with drag-shrinking.
8101     if ( IsCellEditControlShown() )
8102     {
8103         HideCellEditControl();
8104         SaveEditControlValue();
8105     }
8106
8107     // autosize column width depending on label text
8108     SetColSize(col, -1);
8109     ForceRefresh();
8110 }
8111
8112 wxSize wxGrid::DoGetBestSize() const
8113 {
8114     wxGrid *self = (wxGrid *)this;  // const_cast
8115
8116     // we do the same as in AutoSize() here with the exception that we don't
8117     // change the column/row sizes, only calculate them
8118     wxSize size(self->SetOrCalcColumnSizes(true) - m_rowLabelWidth + m_extraWidth,
8119                 self->SetOrCalcRowSizes(true) - m_colLabelHeight + m_extraHeight);
8120
8121     // NOTE: This size should be cached, but first we need to add calls to
8122     // InvalidateBestSize everywhere that could change the results of this
8123     // calculation.
8124     // CacheBestSize(size);
8125
8126     return wxSize(size.x + m_rowLabelWidth, size.y + m_colLabelHeight)
8127             + GetWindowBorderSize();
8128 }
8129
8130 void wxGrid::Fit()
8131 {
8132     AutoSize();
8133 }
8134
8135 wxPen& wxGrid::GetDividerPen() const
8136 {
8137     return wxNullPen;
8138 }
8139
8140 // ----------------------------------------------------------------------------
8141 // cell value accessor functions
8142 // ----------------------------------------------------------------------------
8143
8144 void wxGrid::SetCellValue( int row, int col, const wxString& s )
8145 {
8146     if ( m_table )
8147     {
8148         m_table->SetValue( row, col, s );
8149         if ( !GetBatchCount() )
8150         {
8151             int dummy;
8152             wxRect rect( CellToRect( row, col ) );
8153             rect.x = 0;
8154             rect.width = m_gridWin->GetClientSize().GetWidth();
8155             CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
8156             m_gridWin->Refresh( false, &rect );
8157         }
8158
8159         if ( m_currentCellCoords.GetRow() == row &&
8160              m_currentCellCoords.GetCol() == col &&
8161              IsCellEditControlShown())
8162              // Note: If we are using IsCellEditControlEnabled,
8163              // this interacts badly with calling SetCellValue from
8164              // an EVT_GRID_CELL_CHANGE handler.
8165         {
8166             HideCellEditControl();
8167             ShowCellEditControl(); // will reread data from table
8168         }
8169     }
8170 }
8171
8172 // ----------------------------------------------------------------------------
8173 // block, row and column selection
8174 // ----------------------------------------------------------------------------
8175
8176 void wxGrid::SelectRow( int row, bool addToSelected )
8177 {
8178     if ( !m_selection )
8179         return;
8180
8181     if ( !addToSelected )
8182         ClearSelection();
8183
8184     m_selection->SelectRow(row);
8185 }
8186
8187 void wxGrid::SelectCol( int col, bool addToSelected )
8188 {
8189     if ( !m_selection )
8190         return;
8191
8192     if ( !addToSelected )
8193         ClearSelection();
8194
8195     m_selection->SelectCol(col);
8196 }
8197
8198 void wxGrid::SelectBlock(int topRow, int leftCol, int bottomRow, int rightCol,
8199                          bool addToSelected)
8200 {
8201     if ( !m_selection )
8202         return;
8203
8204     if ( !addToSelected )
8205         ClearSelection();
8206
8207     m_selection->SelectBlock(topRow, leftCol, bottomRow, rightCol);
8208 }
8209
8210 void wxGrid::SelectAll()
8211 {
8212     if ( m_numRows > 0 && m_numCols > 0 )
8213     {
8214         if ( m_selection )
8215             m_selection->SelectBlock( 0, 0, m_numRows - 1, m_numCols - 1 );
8216     }
8217 }
8218
8219 // ----------------------------------------------------------------------------
8220 // cell, row and col deselection
8221 // ----------------------------------------------------------------------------
8222
8223 void wxGrid::DeselectLine(int line, const wxGridOperations& oper)
8224 {
8225     if ( !m_selection )
8226         return;
8227
8228     const wxGridSelectionModes mode = m_selection->GetSelectionMode();
8229     if ( mode == oper.GetSelectionMode() ||
8230             mode == wxGrid::wxGridSelectRowsOrColumns )
8231     {
8232         const wxGridCellCoords c(oper.MakeCoords(line, 0));
8233         if ( m_selection->IsInSelection(c) )
8234             m_selection->ToggleCellSelection(c);
8235     }
8236     else if ( mode != oper.Dual().GetSelectionMode() )
8237     {
8238         const int nOther = oper.Dual().GetNumberOfLines(this);
8239         for ( int i = 0; i < nOther; i++ )
8240         {
8241             const wxGridCellCoords c(oper.MakeCoords(line, i));
8242             if ( m_selection->IsInSelection(c) )
8243                 m_selection->ToggleCellSelection(c);
8244         }
8245     }
8246     //else: can only select orthogonal lines so no lines in this direction
8247     //      could have been selected anyhow
8248 }
8249
8250 void wxGrid::DeselectRow(int row)
8251 {
8252     DeselectLine(row, wxGridRowOperations());
8253 }
8254
8255 void wxGrid::DeselectCol(int col)
8256 {
8257     DeselectLine(col, wxGridColumnOperations());
8258 }
8259
8260 void wxGrid::DeselectCell( int row, int col )
8261 {
8262     if ( m_selection && m_selection->IsInSelection(row, col) )
8263         m_selection->ToggleCellSelection(row, col);
8264 }
8265
8266 bool wxGrid::IsSelection() const
8267 {
8268     return ( m_selection && (m_selection->IsSelection() ||
8269              ( m_selectedBlockTopLeft != wxGridNoCellCoords &&
8270                m_selectedBlockBottomRight != wxGridNoCellCoords) ) );
8271 }
8272
8273 bool wxGrid::IsInSelection( int row, int col ) const
8274 {
8275     return ( m_selection && (m_selection->IsInSelection( row, col ) ||
8276              ( row >= m_selectedBlockTopLeft.GetRow() &&
8277                col >= m_selectedBlockTopLeft.GetCol() &&
8278                row <= m_selectedBlockBottomRight.GetRow() &&
8279                col <= m_selectedBlockBottomRight.GetCol() )) );
8280 }
8281
8282 wxGridCellCoordsArray wxGrid::GetSelectedCells() const
8283 {
8284     if (!m_selection)
8285     {
8286         wxGridCellCoordsArray a;
8287         return a;
8288     }
8289
8290     return m_selection->m_cellSelection;
8291 }
8292
8293 wxGridCellCoordsArray wxGrid::GetSelectionBlockTopLeft() const
8294 {
8295     if (!m_selection)
8296     {
8297         wxGridCellCoordsArray a;
8298         return a;
8299     }
8300
8301     return m_selection->m_blockSelectionTopLeft;
8302 }
8303
8304 wxGridCellCoordsArray wxGrid::GetSelectionBlockBottomRight() const
8305 {
8306     if (!m_selection)
8307     {
8308         wxGridCellCoordsArray a;
8309         return a;
8310     }
8311
8312     return m_selection->m_blockSelectionBottomRight;
8313 }
8314
8315 wxArrayInt wxGrid::GetSelectedRows() const
8316 {
8317     if (!m_selection)
8318     {
8319         wxArrayInt a;
8320         return a;
8321     }
8322
8323     return m_selection->m_rowSelection;
8324 }
8325
8326 wxArrayInt wxGrid::GetSelectedCols() const
8327 {
8328     if (!m_selection)
8329     {
8330         wxArrayInt a;
8331         return a;
8332     }
8333
8334     return m_selection->m_colSelection;
8335 }
8336
8337 void wxGrid::ClearSelection()
8338 {
8339     wxRect r1 = BlockToDeviceRect(m_selectedBlockTopLeft,
8340                                   m_selectedBlockBottomRight);
8341     wxRect r2 = BlockToDeviceRect(m_currentCellCoords,
8342                                   m_selectedBlockCorner);
8343
8344     m_selectedBlockTopLeft =
8345     m_selectedBlockBottomRight =
8346     m_selectedBlockCorner = wxGridNoCellCoords;
8347
8348     if ( !r1.IsEmpty() )
8349         RefreshRect(r1, false);
8350     if ( !r2.IsEmpty() )
8351         RefreshRect(r2, false);
8352
8353     if ( m_selection )
8354         m_selection->ClearSelection();
8355 }
8356
8357 // This function returns the rectangle that encloses the given block
8358 // in device coords clipped to the client size of the grid window.
8359 //
8360 wxRect wxGrid::BlockToDeviceRect( const wxGridCellCoords& topLeft,
8361                                   const wxGridCellCoords& bottomRight ) const
8362 {
8363     wxRect resultRect;
8364     wxRect tempCellRect = CellToRect(topLeft);
8365     if ( tempCellRect != wxGridNoCellRect )
8366     {
8367         resultRect = tempCellRect;
8368     }
8369     else
8370     {
8371         resultRect = wxRect(0, 0, 0, 0);
8372     }
8373
8374     tempCellRect = CellToRect(bottomRight);
8375     if ( tempCellRect != wxGridNoCellRect )
8376     {
8377         resultRect += tempCellRect;
8378     }
8379     else
8380     {
8381         // If both inputs were "wxGridNoCellRect," then there's nothing to do.
8382         return wxGridNoCellRect;
8383     }
8384
8385     // Ensure that left/right and top/bottom pairs are in order.
8386     int left = resultRect.GetLeft();
8387     int top = resultRect.GetTop();
8388     int right = resultRect.GetRight();
8389     int bottom = resultRect.GetBottom();
8390
8391     int leftCol = topLeft.GetCol();
8392     int topRow = topLeft.GetRow();
8393     int rightCol = bottomRight.GetCol();
8394     int bottomRow = bottomRight.GetRow();
8395
8396     if (left > right)
8397     {
8398         int tmp = left;
8399         left = right;
8400         right = tmp;
8401
8402         tmp = leftCol;
8403         leftCol = rightCol;
8404         rightCol = tmp;
8405     }
8406
8407     if (top > bottom)
8408     {
8409         int tmp = top;
8410         top = bottom;
8411         bottom = tmp;
8412
8413         tmp = topRow;
8414         topRow = bottomRow;
8415         bottomRow = tmp;
8416     }
8417
8418     // The following loop is ONLY necessary to detect and handle merged cells.
8419     int cw, ch;
8420     m_gridWin->GetClientSize( &cw, &ch );
8421
8422     // Get the origin coordinates: notice that they will be negative if the
8423     // grid is scrolled downwards/to the right.
8424     int gridOriginX = 0;
8425     int gridOriginY = 0;
8426     CalcScrolledPosition(gridOriginX, gridOriginY, &gridOriginX, &gridOriginY);
8427
8428     int onScreenLeftmostCol = internalXToCol(-gridOriginX);
8429     int onScreenUppermostRow = internalYToRow(-gridOriginY);
8430
8431     int onScreenRightmostCol = internalXToCol(-gridOriginX + cw);
8432     int onScreenBottommostRow = internalYToRow(-gridOriginY + ch);
8433
8434     // Bound our loop so that we only examine the portion of the selected block
8435     // that is shown on screen. Therefore, we compare the Top-Left block values
8436     // to the Top-Left screen values, and the Bottom-Right block values to the
8437     // Bottom-Right screen values, choosing appropriately.
8438     const int visibleTopRow = wxMax(topRow, onScreenUppermostRow);
8439     const int visibleBottomRow = wxMin(bottomRow, onScreenBottommostRow);
8440     const int visibleLeftCol = wxMax(leftCol, onScreenLeftmostCol);
8441     const int visibleRightCol = wxMin(rightCol, onScreenRightmostCol);
8442
8443     for ( int j = visibleTopRow; j <= visibleBottomRow; j++ )
8444     {
8445         for ( int i = visibleLeftCol; i <= visibleRightCol; i++ )
8446         {
8447             if ( (j == visibleTopRow) || (j == visibleBottomRow) ||
8448                     (i == visibleLeftCol) || (i == visibleRightCol) )
8449             {
8450                 tempCellRect = CellToRect( j, i );
8451
8452                 if (tempCellRect.x < left)
8453                     left = tempCellRect.x;
8454                 if (tempCellRect.y < top)
8455                     top = tempCellRect.y;
8456                 if (tempCellRect.x + tempCellRect.width > right)
8457                     right = tempCellRect.x + tempCellRect.width;
8458                 if (tempCellRect.y + tempCellRect.height > bottom)
8459                     bottom = tempCellRect.y + tempCellRect.height;
8460             }
8461             else
8462             {
8463                 i = visibleRightCol; // jump over inner cells.
8464             }
8465         }
8466     }
8467
8468     // Convert to scrolled coords
8469     CalcScrolledPosition( left, top, &left, &top );
8470     CalcScrolledPosition( right, bottom, &right, &bottom );
8471
8472     if (right < 0 || bottom < 0 || left > cw || top > ch)
8473         return wxRect(0,0,0,0);
8474
8475     resultRect.SetLeft( wxMax(0, left) );
8476     resultRect.SetTop( wxMax(0, top) );
8477     resultRect.SetRight( wxMin(cw, right) );
8478     resultRect.SetBottom( wxMin(ch, bottom) );
8479
8480     return resultRect;
8481 }
8482
8483 void wxGrid::DoSetSizes(const wxGridSizesInfo& sizeInfo,
8484                         const wxGridOperations& oper)
8485 {
8486     BeginBatch();
8487     oper.SetDefaultLineSize(this, sizeInfo.m_sizeDefault, true);
8488     const int numLines = oper.GetNumberOfLines(this);
8489     for ( int i = 0; i < numLines; i++ )
8490     {
8491         int size = sizeInfo.GetSize(i);
8492         if ( size != sizeInfo.m_sizeDefault)
8493             oper.SetLineSize(this, i, size);
8494     }
8495     EndBatch();
8496 }
8497
8498 void wxGrid::SetColSizes(const wxGridSizesInfo& sizeInfo)
8499 {
8500     DoSetSizes(sizeInfo, wxGridColumnOperations());
8501 }
8502
8503 void wxGrid::SetRowSizes(const wxGridSizesInfo& sizeInfo)
8504 {
8505     DoSetSizes(sizeInfo, wxGridRowOperations());
8506 }
8507
8508 wxGridSizesInfo::wxGridSizesInfo(int defSize, const wxArrayInt& allSizes)
8509 {
8510     m_sizeDefault = defSize;
8511     for ( size_t i = 0; i < allSizes.size(); i++ )
8512     {
8513         if ( allSizes[i] != defSize )
8514             m_customSizes[i] = allSizes[i];
8515     }
8516 }
8517
8518 int wxGridSizesInfo::GetSize(unsigned pos) const
8519 {
8520     wxUnsignedToIntHashMap::const_iterator it = m_customSizes.find(pos);
8521
8522     return it == m_customSizes.end() ? m_sizeDefault : it->second;
8523 }
8524
8525 // ----------------------------------------------------------------------------
8526 // drop target
8527 // ----------------------------------------------------------------------------
8528
8529 #if wxUSE_DRAG_AND_DROP
8530
8531 // this allow setting drop target directly on wxGrid
8532 void wxGrid::SetDropTarget(wxDropTarget *dropTarget)
8533 {
8534     GetGridWindow()->SetDropTarget(dropTarget);
8535 }
8536
8537 #endif // wxUSE_DRAG_AND_DROP
8538
8539 // ----------------------------------------------------------------------------
8540 // grid event classes
8541 // ----------------------------------------------------------------------------
8542
8543 IMPLEMENT_DYNAMIC_CLASS( wxGridEvent, wxNotifyEvent )
8544
8545 wxGridEvent::wxGridEvent( int id, wxEventType type, wxObject* obj,
8546                           int row, int col, int x, int y, bool sel,
8547                           bool control, bool shift, bool alt, bool meta )
8548         : wxNotifyEvent( type, id ),
8549           wxKeyboardState(control, shift, alt, meta)
8550 {
8551     Init(row, col, x, y, sel);
8552
8553     SetEventObject(obj);
8554 }
8555
8556 IMPLEMENT_DYNAMIC_CLASS( wxGridSizeEvent, wxNotifyEvent )
8557
8558 wxGridSizeEvent::wxGridSizeEvent( int id, wxEventType type, wxObject* obj,
8559                                   int rowOrCol, int x, int y,
8560                                   bool control, bool shift, bool alt, bool meta )
8561         : wxNotifyEvent( type, id ),
8562           wxKeyboardState(control, shift, alt, meta)
8563 {
8564     Init(rowOrCol, x, y);
8565
8566     SetEventObject(obj);
8567 }
8568
8569
8570 IMPLEMENT_DYNAMIC_CLASS( wxGridRangeSelectEvent, wxNotifyEvent )
8571
8572 wxGridRangeSelectEvent::wxGridRangeSelectEvent(int id, wxEventType type, wxObject* obj,
8573                                                const wxGridCellCoords& topLeft,
8574                                                const wxGridCellCoords& bottomRight,
8575                                                bool sel, bool control,
8576                                                bool shift, bool alt, bool meta )
8577         : wxNotifyEvent( type, id ),
8578           wxKeyboardState(control, shift, alt, meta)
8579 {
8580     Init(topLeft, bottomRight, sel);
8581
8582     SetEventObject(obj);
8583 }
8584
8585
8586 IMPLEMENT_DYNAMIC_CLASS(wxGridEditorCreatedEvent, wxCommandEvent)
8587
8588 wxGridEditorCreatedEvent::wxGridEditorCreatedEvent(int id, wxEventType type,
8589                                                    wxObject* obj, int row,
8590                                                    int col, wxControl* ctrl)
8591     : wxCommandEvent(type, id)
8592 {
8593     SetEventObject(obj);
8594     m_row = row;
8595     m_col = col;
8596     m_ctrl = ctrl;
8597 }
8598
8599
8600 // ----------------------------------------------------------------------------
8601 // wxGridTypeRegistry
8602 // ----------------------------------------------------------------------------
8603
8604 wxGridTypeRegistry::~wxGridTypeRegistry()
8605 {
8606     size_t count = m_typeinfo.GetCount();
8607     for ( size_t i = 0; i < count; i++ )
8608         delete m_typeinfo[i];
8609 }
8610
8611 void wxGridTypeRegistry::RegisterDataType(const wxString& typeName,
8612                                           wxGridCellRenderer* renderer,
8613                                           wxGridCellEditor* editor)
8614 {
8615     wxGridDataTypeInfo* info = new wxGridDataTypeInfo(typeName, renderer, editor);
8616
8617     // is it already registered?
8618     int loc = FindRegisteredDataType(typeName);
8619     if ( loc != wxNOT_FOUND )
8620     {
8621         delete m_typeinfo[loc];
8622         m_typeinfo[loc] = info;
8623     }
8624     else
8625     {
8626         m_typeinfo.Add(info);
8627     }
8628 }
8629
8630 int wxGridTypeRegistry::FindRegisteredDataType(const wxString& typeName)
8631 {
8632     size_t count = m_typeinfo.GetCount();
8633     for ( size_t i = 0; i < count; i++ )
8634     {
8635         if ( typeName == m_typeinfo[i]->m_typeName )
8636         {
8637             return i;
8638         }
8639     }
8640
8641     return wxNOT_FOUND;
8642 }
8643
8644 int wxGridTypeRegistry::FindDataType(const wxString& typeName)
8645 {
8646     int index = FindRegisteredDataType(typeName);
8647     if ( index == wxNOT_FOUND )
8648     {
8649         // check whether this is one of the standard ones, in which case
8650         // register it "on the fly"
8651 #if wxUSE_TEXTCTRL
8652         if ( typeName == wxGRID_VALUE_STRING )
8653         {
8654             RegisterDataType(wxGRID_VALUE_STRING,
8655                              new wxGridCellStringRenderer,
8656                              new wxGridCellTextEditor);
8657         }
8658         else
8659 #endif // wxUSE_TEXTCTRL
8660 #if wxUSE_CHECKBOX
8661         if ( typeName == wxGRID_VALUE_BOOL )
8662         {
8663             RegisterDataType(wxGRID_VALUE_BOOL,
8664                              new wxGridCellBoolRenderer,
8665                              new wxGridCellBoolEditor);
8666         }
8667         else
8668 #endif // wxUSE_CHECKBOX
8669 #if wxUSE_TEXTCTRL
8670         if ( typeName == wxGRID_VALUE_NUMBER )
8671         {
8672             RegisterDataType(wxGRID_VALUE_NUMBER,
8673                              new wxGridCellNumberRenderer,
8674                              new wxGridCellNumberEditor);
8675         }
8676         else if ( typeName == wxGRID_VALUE_FLOAT )
8677         {
8678             RegisterDataType(wxGRID_VALUE_FLOAT,
8679                              new wxGridCellFloatRenderer,
8680                              new wxGridCellFloatEditor);
8681         }
8682         else
8683 #endif // wxUSE_TEXTCTRL
8684 #if wxUSE_COMBOBOX
8685         if ( typeName == wxGRID_VALUE_CHOICE )
8686         {
8687             RegisterDataType(wxGRID_VALUE_CHOICE,
8688                              new wxGridCellStringRenderer,
8689                              new wxGridCellChoiceEditor);
8690         }
8691         else
8692 #endif // wxUSE_COMBOBOX
8693         {
8694             return wxNOT_FOUND;
8695         }
8696
8697         // we get here only if just added the entry for this type, so return
8698         // the last index
8699         index = m_typeinfo.GetCount() - 1;
8700     }
8701
8702     return index;
8703 }
8704
8705 int wxGridTypeRegistry::FindOrCloneDataType(const wxString& typeName)
8706 {
8707     int index = FindDataType(typeName);
8708     if ( index == wxNOT_FOUND )
8709     {
8710         // the first part of the typename is the "real" type, anything after ':'
8711         // are the parameters for the renderer
8712         index = FindDataType(typeName.BeforeFirst(wxT(':')));
8713         if ( index == wxNOT_FOUND )
8714         {
8715             return wxNOT_FOUND;
8716         }
8717
8718         wxGridCellRenderer *renderer = GetRenderer(index);
8719         wxGridCellRenderer *rendererOld = renderer;
8720         renderer = renderer->Clone();
8721         rendererOld->DecRef();
8722
8723         wxGridCellEditor *editor = GetEditor(index);
8724         wxGridCellEditor *editorOld = editor;
8725         editor = editor->Clone();
8726         editorOld->DecRef();
8727
8728         // do it even if there are no parameters to reset them to defaults
8729         wxString params = typeName.AfterFirst(wxT(':'));
8730         renderer->SetParameters(params);
8731         editor->SetParameters(params);
8732
8733         // register the new typename
8734         RegisterDataType(typeName, renderer, editor);
8735
8736         // we just registered it, it's the last one
8737         index = m_typeinfo.GetCount() - 1;
8738     }
8739
8740     return index;
8741 }
8742
8743 wxGridCellRenderer* wxGridTypeRegistry::GetRenderer(int index)
8744 {
8745     wxGridCellRenderer* renderer = m_typeinfo[index]->m_renderer;
8746     if (renderer)
8747         renderer->IncRef();
8748
8749     return renderer;
8750 }
8751
8752 wxGridCellEditor* wxGridTypeRegistry::GetEditor(int index)
8753 {
8754     wxGridCellEditor* editor = m_typeinfo[index]->m_editor;
8755     if (editor)
8756         editor->IncRef();
8757
8758     return editor;
8759 }
8760
8761 #endif // wxUSE_GRID