src/generic/datavgen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datavgen.cpp
   3 // Purpose:     wxDataViewCtrl generic implementation
   4 // Author:      Robert Roebling
   5 // Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_DATAVIEWCTRL
  19
  20 #include "wx/dataview.h"
  21
  22 #ifdef wxUSE_GENERICDATAVIEWCTRL
  23
  24 #ifndef WX_PRECOMP
  25     #ifdef __WXMSW__
  26         #include "wx/msw/private.h"
  27         #include "wx/msw/wrapwin.h"
  28         #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  29     #endif
  30     #include "wx/sizer.h"
  31     #include "wx/log.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/timer.h"
  34     #include "wx/settings.h"
  35     #include "wx/msgdlg.h"
  36     #include "wx/dcscreen.h"
  37     #include "wx/frame.h"
  38 #endif
  39
  40 #include "wx/stockitem.h"
  41 #include "wx/calctrl.h"
  42 #include "wx/popupwin.h"
  43 #include "wx/renderer.h"
  44 #include "wx/dcbuffer.h"
  45 #include "wx/icon.h"
  46 #include "wx/list.h"
  47 #include "wx/listimpl.cpp"
  48 #include "wx/imaglist.h"
  49 #include "wx/headerctrl.h"
  50 #include "wx/dnd.h"
  51 #include "wx/stopwatch.h"
  52
  53 //-----------------------------------------------------------------------------
  54 // classes
  55 //-----------------------------------------------------------------------------
  56
  57 class wxDataViewColumn;
  58 class wxDataViewHeaderWindow;
  59 class wxDataViewCtrl;
  60
  61 //-----------------------------------------------------------------------------
  62 // classes
  63 //-----------------------------------------------------------------------------
  64
  65 static const int SCROLL_UNIT_X = 15;
  66
  67 // the cell padding on the left/right
  68 static const int PADDING_RIGHTLEFT = 3;
  69
  70 // the expander space margin
  71 static const int EXPANDER_MARGIN = 4;
  72
  73 #ifdef __WXMSW__
  74 static const int EXPANDER_OFFSET = 4;
  75 #else
  76 static const int EXPANDER_OFFSET = 1;
  77 #endif
  78
  79 // Below is the compare stuff.
  80 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  81 // fast search when needed
  82 static wxDataViewModel* g_model;
  83 static int g_column = -2;
  84 static bool g_asending = true;
  85
  86 //-----------------------------------------------------------------------------
  87 // wxDataViewColumn
  88 //-----------------------------------------------------------------------------
  89
  90 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
  91 {
  92     m_width = width;
  93     m_minWidth = 0;
  94     m_align = align;
  95     m_flags = flags;
  96     m_sort = false;
  97     m_sortAscending = true;
  98 }
  99
 100 int wxDataViewColumn::GetWidth() const
 101 {
 102     switch ( m_width )
 103     {
 104         case wxCOL_WIDTH_DEFAULT:
 105             return wxDVC_DEFAULT_WIDTH;
 106
 107         case wxCOL_WIDTH_AUTOSIZE:
 108             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 109             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 110
 111         default:
 112             return m_width;
 113     }
 114 }
 115
 116 void wxDataViewColumn::UpdateDisplay()
 117 {
 118     if (m_owner)
 119     {
 120         int idx = m_owner->GetColumnIndex( this );
 121         m_owner->OnColumnChange( idx );
 122     }
 123 }
 124
 125 //-----------------------------------------------------------------------------
 126 // wxDataViewHeaderWindow
 127 //-----------------------------------------------------------------------------
 128
 129 class wxDataViewHeaderWindow : public wxHeaderCtrl
 130 {
 131 public:
 132     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 133         : wxHeaderCtrl(parent)
 134     {
 135     }
 136
 137     wxDataViewCtrl *GetOwner() const
 138         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 139
 140 protected:
 141     // implement/override wxHeaderCtrl functions by forwarding them to the main
 142     // control
 143     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 144     {
 145         return *(GetOwner()->GetColumn(idx));
 146     }
 147
 148     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 149     {
 150         wxDataViewCtrl * const owner = GetOwner();
 151
 152         int widthContents = owner->GetBestColumnWidth(idx);
 153         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 154         owner->OnColumnChange(idx);
 155
 156         return true;
 157     }
 158
 159 private:
 160     bool SendEvent(wxEventType type, unsigned int n)
 161     {
 162         wxDataViewCtrl * const owner = GetOwner();
 163         wxDataViewEvent event(type, owner->GetId());
 164
 165         event.SetEventObject(owner);
 166         event.SetColumn(n);
 167         event.SetDataViewColumn(owner->GetColumn(n));
 168         event.SetModel(owner->GetModel());
 169
 170         // for events created by wxDataViewHeaderWindow the
 171         // row / value fields are not valid
 172         return owner->GetEventHandler()->ProcessEvent(event);
 173     }
 174
 175     void OnClick(wxHeaderCtrlEvent& event)
 176     {
 177         const unsigned idx = event.GetColumn();
 178
 179         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 180             return;
 181
 182         // default handling for the column click is to sort by this column or
 183         // toggle its sort order
 184         wxDataViewCtrl * const owner = GetOwner();
 185         wxDataViewColumn * const col = owner->GetColumn(idx);
 186         if ( !col->IsSortable() )
 187         {
 188             // no default handling for non-sortable columns
 189             event.Skip();
 190             return;
 191         }
 192
 193         if ( col->IsSortKey() )
 194         {
 195             // already using this column for sorting, just change the order
 196             col->ToggleSortOrder();
 197         }
 198         else // not using this column for sorting yet
 199         {
 200             // first unset the old sort column if any
 201             int oldSortKey = owner->GetSortingColumnIndex();
 202             if ( oldSortKey != wxNOT_FOUND )
 203             {
 204                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 205                 owner->OnColumnChange(oldSortKey);
 206             }
 207
 208             owner->SetSortingColumnIndex(idx);
 209             col->SetAsSortKey();
 210         }
 211
 212         wxDataViewModel * const model = owner->GetModel();
 213         if ( model )
 214             model->Resort();
 215
 216         owner->OnColumnChange(idx);
 217
 218         SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
 219     }
 220
 221     void OnRClick(wxHeaderCtrlEvent& event)
 222     {
 223         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 224                         event.GetColumn()) )
 225             event.Skip();
 226     }
 227
 228     void OnResize(wxHeaderCtrlEvent& event)
 229     {
 230         wxDataViewCtrl * const owner = GetOwner();
 231
 232         const unsigned col = event.GetColumn();
 233         owner->GetColumn(col)->SetWidth(event.GetWidth());
 234         GetOwner()->OnColumnChange(col);
 235     }
 236
 237     void OnEndReorder(wxHeaderCtrlEvent& event)
 238     {
 239         wxDataViewCtrl * const owner = GetOwner();
 240         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 241                         event.GetNewOrder());
 242     }
 243
 244     DECLARE_EVENT_TABLE()
 245     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 246 };
 247
 248 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 249     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 250     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 251
 252     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 253     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 254
 255     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 256 END_EVENT_TABLE()
 257
 258 //-----------------------------------------------------------------------------
 259 // wxDataViewRenameTimer
 260 //-----------------------------------------------------------------------------
 261
 262 class wxDataViewRenameTimer: public wxTimer
 263 {
 264 private:
 265     wxDataViewMainWindow *m_owner;
 266
 267 public:
 268     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 269     void Notify();
 270 };
 271
 272 //-----------------------------------------------------------------------------
 273 // wxDataViewTreeNode
 274 //-----------------------------------------------------------------------------
 275
 276 class wxDataViewTreeNode;
 277 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 278
 279 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 280                                            wxDataViewTreeNode ** node2);
 281
 282 class wxDataViewTreeNode
 283 {
 284 public:
 285     wxDataViewTreeNode(wxDataViewTreeNode *parent, const wxDataViewItem& item)
 286         : m_item(item),
 287           m_parent(parent),
 288           m_branchData(NULL)
 289     {
 290     }
 291
 292     ~wxDataViewTreeNode()
 293     {
 294         delete m_branchData;
 295     }
 296
 297     static wxDataViewTreeNode* CreateRootNode()
 298     {
 299         wxDataViewTreeNode *n = new wxDataViewTreeNode(NULL, wxDataViewItem());
 300         n->SetHasChildren(true);
 301         n->m_branchData->open = true;
 302         return n;
 303     }
 304
 305     wxDataViewTreeNode * GetParent() const { return m_parent; }
 306
 307     wxDataViewTreeNodes& GetNodes()
 308     {
 309         wxASSERT( m_branchData != NULL );
 310         return m_branchData->nodes;
 311     }
 312
 313     void AddNode( wxDataViewTreeNode * node )
 314     {
 315         if ( !m_branchData )
 316             m_branchData = new BranchNodeData;
 317
 318         m_branchData->nodes.Add( node );
 319         // TODO: insert into sorted array directly in O(log n) instead of resorting in O(n log n)
 320         if (g_column >= -1)
 321             m_branchData->nodes.Sort( &wxGenericTreeModelNodeCmp );
 322     }
 323
 324     const wxDataViewItem & GetItem() const { return m_item; }
 325     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 326
 327     int GetIndentLevel() const
 328     {
 329         int ret = 0;
 330         const wxDataViewTreeNode * node = this;
 331         while( node->GetParent()->GetParent() != NULL )
 332         {
 333             node = node->GetParent();
 334             ret ++;
 335         }
 336         return ret;
 337     }
 338
 339     bool IsOpen() const
 340     {
 341         return m_branchData && m_branchData->open;
 342     }
 343
 344     void ToggleOpen()
 345     {
 346         wxCHECK_RET( m_branchData != NULL, "can't open leaf node" );
 347
 348         int sum = 0;
 349
 350         const wxDataViewTreeNodes& nodes = m_branchData->nodes;
 351         const int len = nodes.GetCount();
 352         for ( int i = 0;i < len; i ++)
 353             sum += 1 + nodes[i]->GetSubTreeCount();
 354
 355         if (m_branchData->open)
 356         {
 357             ChangeSubTreeCount(-sum);
 358             m_branchData->open = !m_branchData->open;
 359         }
 360         else
 361         {
 362             m_branchData->open = !m_branchData->open;
 363             ChangeSubTreeCount(+sum);
 364         }
 365     }
 366
 367     // "HasChildren" property corresponds to model's IsContainer(). Note that it may be true
 368     // even if GetNodes() is empty; see below.
 369     bool HasChildren() const
 370     {
 371         return m_branchData != NULL;
 372     }
 373
 374     void SetHasChildren(bool has)
 375     {
 376         if ( !has )
 377         {
 378             wxDELETE(m_branchData);
 379         }
 380         else if ( m_branchData == NULL )
 381         {
 382             m_branchData = new BranchNodeData;
 383         }
 384     }
 385
 386     int GetSubTreeCount() const
 387     {
 388         return m_branchData ? m_branchData->subTreeCount : 0;
 389     }
 390
 391     void ChangeSubTreeCount( int num )
 392     {
 393         wxASSERT( m_branchData != NULL );
 394
 395         if( !m_branchData->open )
 396             return;
 397
 398         m_branchData->subTreeCount += num;
 399         wxASSERT( m_branchData->subTreeCount >= 0 );
 400
 401         if( m_parent )
 402             m_parent->ChangeSubTreeCount(num);
 403     }
 404
 405     void Resort()
 406     {
 407         if ( !m_branchData )
 408             return;
 409
 410         if (g_column >= -1)
 411         {
 412             wxDataViewTreeNodes& nodes = m_branchData->nodes;
 413
 414             nodes.Sort( &wxGenericTreeModelNodeCmp );
 415             int len = nodes.GetCount();
 416             for (int i = 0; i < len; i ++)
 417             {
 418                 if ( nodes[i]->HasChildren() )
 419                     nodes[i]->Resort();
 420             }
 421         }
 422     }
 423
 424
 425 private:
 426     wxDataViewTreeNode  *m_parent;
 427
 428     // Corresponding model item.
 429     wxDataViewItem       m_item;
 430
 431     // Data specific to non-leaf (branch, inner) nodes. They are kept in a
 432     // separate struct in order to conserve memory.
 433     struct BranchNodeData
 434     {
 435         BranchNodeData()
 436             : open(false),
 437               subTreeCount(0)
 438         {
 439         }
 440
 441         // Child nodes. Note that this may be empty even if m_hasChildren in
 442         // case this branch of the tree wasn't expanded and realized yet.
 443         wxDataViewTreeNodes  nodes;
 444
 445         // Is the branch node currently open (expanded)?
 446         bool                 open;
 447
 448         // Total count of expanded (i.e. visible with the help of some
 449         // scrolling) items in the subtree, but excluding this node. I.e. it is
 450         // 0 for leaves and is the number of rows the subtree occupies for
 451         // branch nodes.
 452         int                  subTreeCount;
 453     };
 454
 455     BranchNodeData *m_branchData;
 456 };
 457
 458
 459 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 460                                            wxDataViewTreeNode ** node2)
 461 {
 462     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 463 }
 464
 465
 466 //-----------------------------------------------------------------------------
 467 // wxDataViewMainWindow
 468 //-----------------------------------------------------------------------------
 469
 470 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
 471
 472 class wxDataViewMainWindow: public wxWindow
 473 {
 474 public:
 475     wxDataViewMainWindow( wxDataViewCtrl *parent,
 476                             wxWindowID id,
 477                             const wxPoint &pos = wxDefaultPosition,
 478                             const wxSize &size = wxDefaultSize,
 479                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 480     virtual ~wxDataViewMainWindow();
 481
 482     bool IsList() const { return GetOwner()->GetModel()->IsListModel(); }
 483     bool IsVirtualList() const { return m_root == NULL; }
 484
 485     // notifications from wxDataViewModel
 486     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 487     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 488     bool ItemChanged( const wxDataViewItem &item );
 489     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 490     bool Cleared();
 491     void Resort()
 492     {
 493         if (!IsVirtualList())
 494         {
 495             SortPrepare();
 496             m_root->Resort();
 497         }
 498         UpdateDisplay();
 499     }
 500
 501     void SortPrepare()
 502     {
 503         g_model = GetOwner()->GetModel();
 504         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 505         if( !col )
 506         {
 507             if (g_model->HasDefaultCompare())
 508                 g_column = -1;
 509             else
 510                 g_column = -2;
 511
 512             g_asending = true;
 513             return;
 514         }
 515         g_column = col->GetModelColumn();
 516         g_asending = col->IsSortOrderAscending();
 517     }
 518
 519     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 520     wxDataViewCtrl *GetOwner() { return m_owner; }
 521     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 522
 523 #if wxUSE_DRAG_AND_DROP
 524     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 525 #endif // wxUSE_DRAG_AND_DROP
 526     void OnPaint( wxPaintEvent &event );
 527     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 528     void OnChar( wxKeyEvent &event );
 529     void OnMouse( wxMouseEvent &event );
 530     void OnSetFocus( wxFocusEvent &event );
 531     void OnKillFocus( wxFocusEvent &event );
 532
 533     void UpdateDisplay();
 534     void RecalculateDisplay();
 535     void OnInternalIdle();
 536
 537     void OnRenameTimer();
 538
 539     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 540     void ScrollTo( int rows, int column );
 541
 542     unsigned GetCurrentRow() const { return m_currentRow; }
 543     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 544     void ChangeCurrentRow( unsigned int row );
 545
 546     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 547     bool IsEmpty() { return GetRowCount() == 0; }
 548
 549     int GetCountPerPage() const;
 550     int GetEndOfLastCol() const;
 551     unsigned int GetFirstVisibleRow() const;
 552
 553     // I change this method to un const because in the tree view,
 554     // the displaying number of the tree are changing along with the
 555     // expanding/collapsing of the tree nodes
 556     unsigned int GetLastVisibleRow();
 557     unsigned int GetRowCount();
 558
 559     const wxDataViewSelection& GetSelections() const { return m_selection; }
 560     void SetSelections( const wxDataViewSelection & sel )
 561         { m_selection = sel; UpdateDisplay(); }
 562     void Select( const wxArrayInt& aSelections );
 563     void SelectAllRows( bool on );
 564     void SelectRow( unsigned int row, bool on );
 565     void SelectRows( unsigned int from, unsigned int to, bool on );
 566     void ReverseRowSelection( unsigned int row );
 567     bool IsRowSelected( unsigned int row );
 568     void SendSelectionChangedEvent( const wxDataViewItem& item);
 569
 570     void RefreshRow( unsigned int row );
 571     void RefreshRows( unsigned int from, unsigned int to );
 572     void RefreshRowsAfter( unsigned int firstRow );
 573
 574     // returns the colour to be used for drawing the rules
 575     wxColour GetRuleColour() const
 576     {
 577         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 578     }
 579
 580     wxRect GetLineRect( unsigned int row ) const;
 581
 582     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 583     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 584     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 585
 586     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 587
 588     // Some useful functions for row and item mapping
 589     wxDataViewItem GetItemByRow( unsigned int row ) const;
 590     int GetRowByItem( const wxDataViewItem & item ) const;
 591
 592     // Methods for building the mapping tree
 593     void BuildTree( wxDataViewModel  * model );
 594     void DestroyTree();
 595     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 596     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 597
 598     void Expand( unsigned int row );
 599     void Collapse( unsigned int row );
 600     bool IsExpanded( unsigned int row ) const;
 601     bool HasChildren( unsigned int row ) const;
 602
 603 #if wxUSE_DRAG_AND_DROP
 604     bool EnableDragSource( const wxDataFormat &format );
 605     bool EnableDropTarget( const wxDataFormat &format );
 606
 607     void RemoveDropHint();
 608     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 609     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 610     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 611     void OnLeave();
 612 #endif // wxUSE_DRAG_AND_DROP
 613
 614 private:
 615     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 616     // We did not need this temporarily
 617     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 618
 619     int RecalculateCount();
 620
 621     // Return false only if the event was vetoed by its handler.
 622     bool SendExpanderEvent(wxEventType type, const wxDataViewItem& item);
 623
 624     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 625
 626 private:
 627     wxDataViewCtrl             *m_owner;
 628     int                         m_lineHeight;
 629     bool                        m_dirty;
 630
 631     wxDataViewColumn           *m_currentCol;
 632     unsigned int                m_currentRow;
 633     wxDataViewSelection         m_selection;
 634
 635     wxDataViewRenameTimer      *m_renameTimer;
 636     bool                        m_lastOnSame;
 637
 638     bool                        m_hasFocus;
 639
 640 #if wxUSE_DRAG_AND_DROP
 641     int                         m_dragCount;
 642     wxPoint                     m_dragStart;
 643
 644     bool                        m_dragEnabled;
 645     wxDataFormat                m_dragFormat;
 646
 647     bool                        m_dropEnabled;
 648     wxDataFormat                m_dropFormat;
 649     bool                        m_dropHint;
 650     unsigned int                m_dropHintLine;
 651 #endif // wxUSE_DRAG_AND_DROP
 652
 653     // for double click logic
 654     unsigned int m_lineLastClicked,
 655         m_lineBeforeLastClicked,
 656         m_lineSelectSingleOnUp;
 657
 658     // the pen used to draw horiz/vertical rules
 659     wxPen m_penRule;
 660
 661     // the pen used to draw the expander and the lines
 662     wxPen m_penExpander;
 663
 664     // This is the tree structure of the model
 665     wxDataViewTreeNode * m_root;
 666     int m_count;
 667
 668     // This is the tree node under the cursor
 669     wxDataViewTreeNode * m_underMouse;
 670
 671 private:
 672     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 673     DECLARE_EVENT_TABLE()
 674 };
 675
 676 // ---------------------------------------------------------
 677 // wxGenericDataViewModelNotifier
 678 // ---------------------------------------------------------
 679
 680 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 681 {
 682 public:
 683     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 684         { m_mainWindow = mainWindow; }
 685
 686     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 687         { return m_mainWindow->ItemAdded( parent , item ); }
 688     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 689         { return m_mainWindow->ItemDeleted( parent, item ); }
 690     virtual bool ItemChanged( const wxDataViewItem & item )
 691         { return m_mainWindow->ItemChanged(item);  }
 692     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 693         { return m_mainWindow->ValueChanged( item, col ); }
 694     virtual bool Cleared()
 695         { return m_mainWindow->Cleared(); }
 696     virtual void Resort()
 697         { m_mainWindow->Resort(); }
 698
 699     wxDataViewMainWindow    *m_mainWindow;
 700 };
 701
 702 // ---------------------------------------------------------
 703 // wxDataViewRenderer
 704 // ---------------------------------------------------------
 705
 706 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 707
 708 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 709                                         wxDataViewCellMode mode,
 710                                         int align) :
 711     wxDataViewCustomRendererBase( varianttype, mode, align )
 712 {
 713     m_align = align;
 714     m_mode = mode;
 715     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 716     m_dc = NULL;
 717 }
 718
 719 wxDataViewRenderer::~wxDataViewRenderer()
 720 {
 721     delete m_dc;
 722 }
 723
 724 wxDC *wxDataViewRenderer::GetDC()
 725 {
 726     if (m_dc == NULL)
 727     {
 728         if (GetOwner() == NULL)
 729             return NULL;
 730         if (GetOwner()->GetOwner() == NULL)
 731             return NULL;
 732         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 733     }
 734
 735     return m_dc;
 736 }
 737
 738 void wxDataViewRenderer::SetAlignment( int align )
 739 {
 740     m_align=align;
 741 }
 742
 743 int wxDataViewRenderer::GetAlignment() const
 744 {
 745     return m_align;
 746 }
 747
 748 // ---------------------------------------------------------
 749 // wxDataViewCustomRenderer
 750 // ---------------------------------------------------------
 751
 752 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 753
 754 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 755                         wxDataViewCellMode mode, int align ) :
 756     wxDataViewRenderer( varianttype, mode, align )
 757 {
 758 }
 759
 760 // ---------------------------------------------------------
 761 // wxDataViewTextRenderer
 762 // ---------------------------------------------------------
 763
 764 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 765
 766 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 767                                                 wxDataViewCellMode mode, int align ) :
 768     wxDataViewRenderer( varianttype, mode, align )
 769 {
 770 }
 771
 772 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 773 {
 774     m_text = value.GetString();
 775
 776     return true;
 777 }
 778
 779 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 780 {
 781     return false;
 782 }
 783
 784 bool wxDataViewTextRenderer::HasEditorCtrl() const
 785 {
 786     return true;
 787 }
 788
 789 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 790         wxRect labelRect, const wxVariant &value )
 791 {
 792     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 793                                        wxPoint(labelRect.x,labelRect.y),
 794                                        wxSize(labelRect.width,labelRect.height) );
 795
 796     // select the text in the control an place the cursor at the end
 797     ctrl->SetInsertionPointEnd();
 798     ctrl->SelectAll();
 799
 800     return ctrl;
 801 }
 802
 803 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 804 {
 805     wxTextCtrl *text = (wxTextCtrl*) editor;
 806     value = text->GetValue();
 807     return true;
 808 }
 809
 810 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 811 {
 812     RenderText(m_text, 0, rect, dc, state);
 813     return true;
 814 }
 815
 816 wxSize wxDataViewTextRenderer::GetSize() const
 817 {
 818     if (!m_text.empty())
 819         return GetTextExtent(m_text);
 820     else
 821         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 822 }
 823
 824 // ---------------------------------------------------------
 825 // wxDataViewBitmapRenderer
 826 // ---------------------------------------------------------
 827
 828 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 829
 830 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 831                                                     wxDataViewCellMode mode, int align ) :
 832     wxDataViewRenderer( varianttype, mode, align )
 833 {
 834 }
 835
 836 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 837 {
 838     if (value.GetType() == wxT("wxBitmap"))
 839         m_bitmap << value;
 840     if (value.GetType() == wxT("wxIcon"))
 841         m_icon << value;
 842
 843     return true;
 844 }
 845
 846 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 847 {
 848     return false;
 849 }
 850
 851 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 852 {
 853     if (m_bitmap.IsOk())
 854         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 855     else if (m_icon.IsOk())
 856         dc->DrawIcon( m_icon, cell.x, cell.y );
 857
 858     return true;
 859 }
 860
 861 wxSize wxDataViewBitmapRenderer::GetSize() const
 862 {
 863     if (m_bitmap.IsOk())
 864         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 865     else if (m_icon.IsOk())
 866         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 867
 868     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 869 }
 870
 871 // ---------------------------------------------------------
 872 // wxDataViewToggleRenderer
 873 // ---------------------------------------------------------
 874
 875 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 876
 877 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 878                         wxDataViewCellMode mode, int align ) :
 879     wxDataViewRenderer( varianttype, mode, align )
 880 {
 881     m_toggle = false;
 882 }
 883
 884 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 885 {
 886     m_toggle = value.GetBool();
 887
 888     return true;
 889 }
 890
 891 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 892 {
 893     return false;
 894 }
 895
 896 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 897 {
 898     int flags = 0;
 899     if (m_toggle)
 900         flags |= wxCONTROL_CHECKED;
 901     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
 902         GetEnabled() == false)
 903         flags |= wxCONTROL_DISABLED;
 904
 905     // check boxes we draw must always have the same, standard size (if it's
 906     // bigger than the cell size the checkbox will be truncated because the
 907     // caller had set the clipping rectangle to prevent us from drawing outside
 908     // the cell)
 909     cell.SetSize(GetSize());
 910
 911     wxRendererNative::Get().DrawCheckBox(
 912             GetOwner()->GetOwner(),
 913             *dc,
 914             cell,
 915             flags );
 916
 917     return true;
 918 }
 919
 920 bool wxDataViewToggleRenderer::WXOnLeftClick(const wxPoint& cursor,
 921                                              const wxRect& WXUNUSED(cell),
 922                                              wxDataViewModel *model,
 923                                              const wxDataViewItem& item,
 924                                              unsigned int col)
 925 {
 926     // only react to clicks directly on the checkbox, not elsewhere in the same cell:
 927     if (!wxRect(GetSize()).Contains(cursor))
 928         return false;
 929
 930     if (model->IsEnabled(item, col))
 931     {
 932         model->ChangeValue(!m_toggle, item, col);
 933         return true;
 934     }
 935
 936     return false;
 937 }
 938
 939 wxSize wxDataViewToggleRenderer::GetSize() const
 940 {
 941     // the window parameter is not used by GetCheckBoxSize() so it's
 942     // safe to pass NULL
 943     return wxRendererNative::Get().GetCheckBoxSize(NULL);
 944 }
 945
 946 // ---------------------------------------------------------
 947 // wxDataViewProgressRenderer
 948 // ---------------------------------------------------------
 949
 950 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
 951
 952 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 953     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 954     wxDataViewRenderer( varianttype, mode, align )
 955 {
 956     m_label = label;
 957     m_value = 0;
 958 }
 959
 960 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 961 {
 962     m_value = (long) value;
 963
 964     if (m_value < 0) m_value = 0;
 965     if (m_value > 100) m_value = 100;
 966
 967     return true;
 968 }
 969
 970 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 971 {
 972     value = (long) m_value;
 973     return true;
 974 }
 975
 976 bool
 977 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
 978 {
 979     // deflate the rect to leave a small border between bars in adjacent rows
 980     wxRect bar = rect.Deflate(0, 1);
 981
 982     dc->SetBrush( *wxTRANSPARENT_BRUSH );
 983     dc->SetPen( *wxBLACK_PEN );
 984     dc->DrawRectangle( bar );
 985
 986     bar.width = (int)(bar.width * m_value / 100.);
 987     dc->SetPen( *wxTRANSPARENT_PEN );
 988
 989     const wxDataViewItemAttr& attr = GetAttr();
 990     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
 991                                   : *wxBLUE_BRUSH );
 992     dc->DrawRectangle( bar );
 993
 994     return true;
 995 }
 996
 997 wxSize wxDataViewProgressRenderer::GetSize() const
 998 {
 999     return wxSize(40,12);
1000 }
1001
1002 // ---------------------------------------------------------
1003 // wxDataViewDateRenderer
1004 // ---------------------------------------------------------
1005
1006 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
1007
1008 #if wxUSE_DATE_RENDERER_POPUP
1009
1010 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
1011 {
1012 public:
1013     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
1014         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
1015         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
1016         m_item( item )
1017     {
1018         m_model = model;
1019         m_col = col;
1020         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
1021         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
1022         sizer->Add( m_cal, 1, wxGROW );
1023         SetSizer( sizer );
1024         sizer->Fit( this );
1025     }
1026
1027     void OnCalendar( wxCalendarEvent &event );
1028
1029     wxCalendarCtrl      *m_cal;
1030     wxDataViewModel *m_model;
1031     unsigned int               m_col;
1032     const wxDataViewItem &   m_item;
1033
1034 protected:
1035     virtual void OnDismiss()
1036     {
1037     }
1038
1039 private:
1040     DECLARE_EVENT_TABLE()
1041 };
1042
1043 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
1044     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
1045 END_EVENT_TABLE()
1046
1047 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
1048 {
1049     m_model->ChangeValue( event.GetDate(), m_item, m_col );
1050     DismissAndNotify();
1051 }
1052
1053 #endif // wxUSE_DATE_RENDERER_POPUP
1054
1055 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewRenderer)
1056
1057 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
1058                         wxDataViewCellMode mode, int align ) :
1059     wxDataViewRenderer( varianttype, mode, align )
1060 {
1061 }
1062
1063 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
1064 {
1065     m_date = value.GetDateTime();
1066
1067     return true;
1068 }
1069
1070 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
1071 {
1072     value = m_date;
1073     return true;
1074 }
1075
1076 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
1077 {
1078     wxString tmp = m_date.FormatDate();
1079     RenderText( tmp, 0, cell, dc, state );
1080     return true;
1081 }
1082
1083 wxSize wxDataViewDateRenderer::GetSize() const
1084 {
1085     return GetTextExtent(m_date.FormatDate());
1086 }
1087
1088 bool wxDataViewDateRenderer::WXOnActivate(const wxRect& WXUNUSED(cell),
1089                                           wxDataViewModel *model,
1090                                           const wxDataViewItem& item,
1091                                           unsigned int col)
1092 {
1093     wxDateTime dtOld = m_date;
1094
1095 #if wxUSE_DATE_RENDERER_POPUP
1096     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
1097         GetOwner()->GetOwner()->GetParent(), &dtOld, model, item, col);
1098     wxPoint pos = wxGetMousePosition();
1099     popup->Move( pos );
1100     popup->Layout();
1101     popup->Popup( popup->m_cal );
1102 #else // !wxUSE_DATE_RENDERER_POPUP
1103     wxMessageBox(dtOld.Format());
1104 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
1105
1106     return true;
1107 }
1108
1109 // ---------------------------------------------------------
1110 // wxDataViewIconTextRenderer
1111 // ---------------------------------------------------------
1112
1113 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1114
1115 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1116 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1117     wxDataViewRenderer( varianttype, mode, align )
1118 {
1119     SetMode(mode);
1120     SetAlignment(align);
1121 }
1122
1123 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1124 {
1125     m_value << value;
1126     return true;
1127 }
1128
1129 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1130 {
1131     return false;
1132 }
1133
1134 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1135 {
1136     int xoffset = 0;
1137
1138     const wxIcon& icon = m_value.GetIcon();
1139     if ( icon.IsOk() )
1140     {
1141         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1142         xoffset = icon.GetWidth()+4;
1143     }
1144
1145     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1146
1147     return true;
1148 }
1149
1150 wxSize wxDataViewIconTextRenderer::GetSize() const
1151 {
1152     if (!m_value.GetText().empty())
1153     {
1154         wxSize size = GetTextExtent(m_value.GetText());
1155
1156         if (m_value.GetIcon().IsOk())
1157             size.x += m_value.GetIcon().GetWidth() + 4;
1158         return size;
1159     }
1160     return wxSize(80,20);
1161 }
1162
1163 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1164 {
1165     wxDataViewIconText iconText;
1166     iconText << value;
1167
1168     wxString text = iconText.GetText();
1169
1170     // adjust the label rect to take the width of the icon into account
1171     if (iconText.GetIcon().IsOk())
1172     {
1173         int w = iconText.GetIcon().GetWidth() + 4;
1174         labelRect.x += w;
1175         labelRect.width -= w;
1176     }
1177
1178     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1179                                        wxPoint(labelRect.x,labelRect.y),
1180                                        wxSize(labelRect.width,labelRect.height) );
1181
1182     // select the text in the control an place the cursor at the end
1183     ctrl->SetInsertionPointEnd();
1184     ctrl->SelectAll();
1185
1186     return ctrl;
1187 }
1188
1189 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1190 {
1191     wxTextCtrl *text = (wxTextCtrl*) editor;
1192
1193     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1194     value << iconText;
1195     return true;
1196 }
1197
1198 //-----------------------------------------------------------------------------
1199 // wxDataViewDropTarget
1200 //-----------------------------------------------------------------------------
1201
1202 #if wxUSE_DRAG_AND_DROP
1203
1204 class wxBitmapCanvas: public wxWindow
1205 {
1206 public:
1207     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1208     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1209     {
1210         m_bitmap = bitmap;
1211         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1212     }
1213
1214     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1215     {
1216         wxPaintDC dc(this);
1217         dc.DrawBitmap( m_bitmap, 0, 0);
1218     }
1219
1220     wxBitmap m_bitmap;
1221 };
1222
1223 class wxDataViewDropSource: public wxDropSource
1224 {
1225 public:
1226     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1227         wxDropSource( win )
1228     {
1229         m_win = win;
1230         m_row = row;
1231         m_hint = NULL;
1232     }
1233
1234     ~wxDataViewDropSource()
1235     {
1236         delete m_hint;
1237     }
1238
1239     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1240     {
1241         wxPoint pos = wxGetMousePosition();
1242
1243         if (!m_hint)
1244         {
1245             int liney = m_win->GetLineStart( m_row );
1246             int linex = 0;
1247             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1248             m_win->ClientToScreen( &linex, &liney );
1249             m_dist_x = pos.x - linex;
1250             m_dist_y = pos.y - liney;
1251
1252             int indent = 0;
1253             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1254             m_dist_x -= indent;
1255             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1256                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1257                                         ib.GetSize(),
1258                                         wxFRAME_TOOL_WINDOW |
1259                                         wxFRAME_FLOAT_ON_PARENT |
1260                                         wxFRAME_NO_TASKBAR |
1261                                         wxNO_BORDER );
1262             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1263             m_hint->Show();
1264         }
1265         else
1266         {
1267             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1268             m_hint->SetTransparent( 128 );
1269         }
1270
1271         return false;
1272     }
1273
1274     wxDataViewMainWindow   *m_win;
1275     unsigned int            m_row;
1276     wxFrame                *m_hint;
1277     int m_dist_x,m_dist_y;
1278 };
1279
1280
1281 class wxDataViewDropTarget: public wxDropTarget
1282 {
1283 public:
1284     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1285         wxDropTarget( obj )
1286     {
1287         m_win = win;
1288     }
1289
1290     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1291     {
1292         wxDataFormat format = GetMatchingPair();
1293         if (format == wxDF_INVALID)
1294             return wxDragNone;
1295         return m_win->OnDragOver( format, x, y, def);
1296     }
1297
1298     virtual bool OnDrop( wxCoord x, wxCoord y )
1299     {
1300         wxDataFormat format = GetMatchingPair();
1301         if (format == wxDF_INVALID)
1302             return false;
1303         return m_win->OnDrop( format, x, y );
1304     }
1305
1306     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1307     {
1308         wxDataFormat format = GetMatchingPair();
1309         if (format == wxDF_INVALID)
1310             return wxDragNone;
1311         if (!GetData())
1312             return wxDragNone;
1313         return m_win->OnData( format, x, y, def );
1314     }
1315
1316     virtual void OnLeave()
1317         { m_win->OnLeave(); }
1318
1319     wxDataViewMainWindow   *m_win;
1320 };
1321
1322 #endif // wxUSE_DRAG_AND_DROP
1323
1324 //-----------------------------------------------------------------------------
1325 // wxDataViewRenameTimer
1326 //-----------------------------------------------------------------------------
1327
1328 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1329 {
1330     m_owner = owner;
1331 }
1332
1333 void wxDataViewRenameTimer::Notify()
1334 {
1335     m_owner->OnRenameTimer();
1336 }
1337
1338 //-----------------------------------------------------------------------------
1339 // wxDataViewMainWindow
1340 //-----------------------------------------------------------------------------
1341
1342 // The tree building helper, declared firstly
1343 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1344                              wxDataViewTreeNode * node);
1345
1346 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1347 {
1348     if (row1 > row2) return 1;
1349     if (row1 == row2) return 0;
1350     return -1;
1351 }
1352
1353 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1354
1355 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1356     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1357     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1358     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1359     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1360     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1361 END_EVENT_TABLE()
1362
1363 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1364     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1365     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1366     m_selection( wxDataViewSelectionCmp )
1367
1368 {
1369     SetOwner( parent );
1370
1371     m_lastOnSame = false;
1372     m_renameTimer = new wxDataViewRenameTimer( this );
1373
1374     // TODO: user better initial values/nothing selected
1375     m_currentCol = NULL;
1376     m_currentRow = 0;
1377
1378     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1379
1380 #if wxUSE_DRAG_AND_DROP
1381     m_dragCount = 0;
1382     m_dragStart = wxPoint(0,0);
1383
1384     m_dragEnabled = false;
1385     m_dropEnabled = false;
1386     m_dropHint = false;
1387     m_dropHintLine = (unsigned int) -1;
1388 #endif // wxUSE_DRAG_AND_DROP
1389
1390     m_lineLastClicked = (unsigned int) -1;
1391     m_lineBeforeLastClicked = (unsigned int) -1;
1392     m_lineSelectSingleOnUp = (unsigned int) -1;
1393
1394     m_hasFocus = false;
1395
1396     SetBackgroundColour( *wxWHITE );
1397
1398     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1399
1400     m_penRule = wxPen(GetRuleColour());
1401
1402     // compose a pen whichcan draw black lines
1403     // TODO: maybe there is something system colour to use
1404     m_penExpander = wxPen(wxColour(0,0,0));
1405
1406     m_root = wxDataViewTreeNode::CreateRootNode();
1407
1408     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1409     m_count = -1;
1410     m_underMouse = NULL;
1411     UpdateDisplay();
1412 }
1413
1414 wxDataViewMainWindow::~wxDataViewMainWindow()
1415 {
1416     DestroyTree();
1417     delete m_renameTimer;
1418 }
1419
1420
1421 #if wxUSE_DRAG_AND_DROP
1422 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1423 {
1424     m_dragFormat = format;
1425     m_dragEnabled = format != wxDF_INVALID;
1426
1427     return true;
1428 }
1429
1430 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1431 {
1432     m_dropFormat = format;
1433     m_dropEnabled = format != wxDF_INVALID;
1434
1435     if (m_dropEnabled)
1436         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1437
1438     return true;
1439 }
1440
1441 void wxDataViewMainWindow::RemoveDropHint()
1442 {
1443     if (m_dropHint)
1444     {
1445             m_dropHint = false;
1446             RefreshRow( m_dropHintLine );
1447             m_dropHintLine = (unsigned int) -1;
1448     }
1449 }
1450
1451 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1452                                                wxCoord y, wxDragResult def )
1453 {
1454     int xx = x;
1455     int yy = y;
1456     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1457     unsigned int row = GetLineAt( yy );
1458
1459     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1460     {
1461         RemoveDropHint();
1462         return wxDragNone;
1463     }
1464
1465     wxDataViewItem item = GetItemByRow( row );
1466
1467     wxDataViewModel *model = GetOwner()->GetModel();
1468
1469     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1470     event.SetEventObject( m_owner );
1471     event.SetItem( item );
1472     event.SetModel( model );
1473     event.SetDataFormat( format );
1474     if (!m_owner->HandleWindowEvent( event ))
1475     {
1476         RemoveDropHint();
1477         return wxDragNone;
1478     }
1479
1480     if (!event.IsAllowed())
1481     {
1482         RemoveDropHint();
1483         return wxDragNone;
1484     }
1485
1486
1487     if (m_dropHint && (row != m_dropHintLine))
1488         RefreshRow( m_dropHintLine );
1489     m_dropHint = true;
1490     m_dropHintLine = row;
1491     RefreshRow( row );
1492
1493     return def;
1494 }
1495
1496 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1497 {
1498     RemoveDropHint();
1499
1500     int xx = x;
1501     int yy = y;
1502     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1503     unsigned int row = GetLineAt( yy );
1504
1505     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1506         return false;
1507
1508     wxDataViewItem item = GetItemByRow( row );
1509
1510     wxDataViewModel *model = GetOwner()->GetModel();
1511
1512     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1513     event.SetEventObject( m_owner );
1514     event.SetItem( item );
1515     event.SetModel( model );
1516     event.SetDataFormat( format );
1517     if (!m_owner->HandleWindowEvent( event ))
1518         return false;
1519
1520     if (!event.IsAllowed())
1521         return false;
1522
1523     return true;
1524 }
1525
1526 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1527                                            wxDragResult def )
1528 {
1529     int xx = x;
1530     int yy = y;
1531     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1532     unsigned int row = GetLineAt( yy );
1533
1534     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1535         return wxDragNone;
1536
1537     wxDataViewItem item = GetItemByRow( row );
1538
1539     wxDataViewModel *model = GetOwner()->GetModel();
1540
1541     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1542
1543     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1544     event.SetEventObject( m_owner );
1545     event.SetItem( item );
1546     event.SetModel( model );
1547     event.SetDataFormat( format );
1548     event.SetDataSize( obj->GetSize() );
1549     event.SetDataBuffer( obj->GetData() );
1550     if (!m_owner->HandleWindowEvent( event ))
1551         return wxDragNone;
1552
1553     if (!event.IsAllowed())
1554         return wxDragNone;
1555
1556     return def;
1557 }
1558
1559 void wxDataViewMainWindow::OnLeave()
1560 {
1561     RemoveDropHint();
1562 }
1563
1564 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1565 {
1566     int height = GetLineHeight( row );
1567     int width = 0;
1568     unsigned int cols = GetOwner()->GetColumnCount();
1569     unsigned int col;
1570     for (col = 0; col < cols; col++)
1571     {
1572         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1573         if (column->IsHidden())
1574             continue;      // skip it!
1575         width += column->GetWidth();
1576     }
1577
1578     indent = 0;
1579     if (!IsList())
1580     {
1581         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1582         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1583         indent = indent + m_lineHeight;
1584             // try to use the m_lineHeight as the expander space
1585     }
1586     width -= indent;
1587
1588     wxBitmap bitmap( width, height );
1589     wxMemoryDC dc( bitmap );
1590     dc.SetFont( GetFont() );
1591     dc.SetPen( *wxBLACK_PEN );
1592     dc.SetBrush( *wxWHITE_BRUSH );
1593     dc.DrawRectangle( 0,0,width,height );
1594
1595     wxDataViewModel *model = m_owner->GetModel();
1596
1597     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1598     if (!expander)
1599     {
1600         // TODO-RTL: last column for RTL support
1601         expander = GetOwner()->GetColumnAt( 0 );
1602         GetOwner()->SetExpanderColumn(expander);
1603     }
1604
1605
1606     int x = 0;
1607     for (col = 0; col < cols; col++)
1608     {
1609         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1610         wxDataViewRenderer *cell = column->GetRenderer();
1611
1612         if (column->IsHidden())
1613             continue;       // skip it!
1614
1615         width = column->GetWidth();
1616
1617         if (column == expander)
1618             width -= indent;
1619
1620         wxDataViewItem item = GetItemByRow( row );
1621         cell->PrepareForItem(model, item, column->GetModelColumn());
1622
1623         wxRect item_rect(x, 0, width, height);
1624         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1625
1626         // dc.SetClippingRegion( item_rect );
1627         cell->WXCallRender(item_rect, &dc, 0);
1628         // dc.DestroyClippingRegion();
1629
1630         x += width;
1631     }
1632
1633     return bitmap;
1634 }
1635
1636 #endif // wxUSE_DRAG_AND_DROP
1637
1638
1639 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1640 {
1641     wxDataViewModel *model = GetOwner()->GetModel();
1642     wxAutoBufferedPaintDC dc( this );
1643
1644 #ifdef __WXMSW__
1645     dc.SetBrush(GetOwner()->GetBackgroundColour());
1646     dc.SetPen( *wxTRANSPARENT_PEN );
1647     dc.DrawRectangle(GetClientSize());
1648 #endif
1649
1650     if ( IsEmpty() )
1651     {
1652         // No items to draw.
1653         return;
1654     }
1655
1656     // prepare the DC
1657     GetOwner()->PrepareDC( dc );
1658     dc.SetFont( GetFont() );
1659
1660     wxRect update = GetUpdateRegion().GetBox();
1661     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1662
1663     // compute which items needs to be redrawn
1664     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1665     unsigned int item_count =
1666         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1667             (int)(GetRowCount( ) - item_start));
1668     unsigned int item_last = item_start + item_count;
1669
1670     // Send the event to wxDataViewCtrl itself.
1671     wxWindow * const parent = GetParent();
1672     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1673     cache_event.SetEventObject(parent);
1674     cache_event.SetCache(item_start, item_last - 1);
1675     parent->ProcessWindowEvent(cache_event);
1676
1677     // compute which columns needs to be redrawn
1678     unsigned int cols = GetOwner()->GetColumnCount();
1679     if ( !cols )
1680     {
1681         // we assume that we have at least one column below and painting an
1682         // empty control is unnecessary anyhow
1683         return;
1684     }
1685
1686     unsigned int col_start = 0;
1687     unsigned int x_start;
1688     for (x_start = 0; col_start < cols; col_start++)
1689     {
1690         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1691         if (col->IsHidden())
1692             continue;      // skip it!
1693
1694         unsigned int w = col->GetWidth();
1695         if (x_start+w >= (unsigned int)update.x)
1696             break;
1697
1698         x_start += w;
1699     }
1700
1701     unsigned int col_last = col_start;
1702     unsigned int x_last = x_start;
1703     for (; col_last < cols; col_last++)
1704     {
1705         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1706         if (col->IsHidden())
1707             continue;      // skip it!
1708
1709         if (x_last > (unsigned int)update.GetRight())
1710             break;
1711
1712         x_last += col->GetWidth();
1713     }
1714
1715     // Draw horizontal rules if required
1716     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1717     {
1718         dc.SetPen(m_penRule);
1719         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1720
1721         for (unsigned int i = item_start; i <= item_last; i++)
1722         {
1723             int y = GetLineStart( i );
1724             dc.DrawLine(x_start, y, x_last, y);
1725         }
1726     }
1727
1728     // Draw vertical rules if required
1729     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1730     {
1731         dc.SetPen(m_penRule);
1732         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1733
1734         // NB: Vertical rules are drawn in the last pixel of a column so that
1735         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1736         //     consistency with MSW native list control. There's no vertical
1737         //     rule at the most-left side of the control.
1738
1739         int x = x_start - 1;
1740         for (unsigned int i = col_start; i < col_last; i++)
1741         {
1742             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1743             if (col->IsHidden())
1744                 continue;       // skip it
1745
1746             x += col->GetWidth();
1747
1748             dc.DrawLine(x, GetLineStart( item_start ),
1749                         x, GetLineStart( item_last ) );
1750         }
1751     }
1752
1753     // redraw the background for the items which are selected/current
1754     for (unsigned int item = item_start; item < item_last; item++)
1755     {
1756         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1757         if (selected || item == m_currentRow)
1758         {
1759             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1760             if (item == m_currentRow)
1761                 flags |= wxCONTROL_CURRENT;
1762             if (m_hasFocus)
1763                 flags |= wxCONTROL_FOCUSED;
1764
1765             wxRect rect( x_start, GetLineStart( item ),
1766                          x_last - x_start, GetLineHeight( item ) );
1767             wxRendererNative::Get().DrawItemSelectionRect
1768                                 (
1769                                     this,
1770                                     dc,
1771                                     rect,
1772                                     flags
1773                                 );
1774         }
1775     }
1776
1777 #if wxUSE_DRAG_AND_DROP
1778     if (m_dropHint)
1779     {
1780         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1781                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1782         dc.SetPen( *wxBLACK_PEN );
1783         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1784         dc.DrawRectangle( rect );
1785     }
1786 #endif // wxUSE_DRAG_AND_DROP
1787
1788     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1789     if (!expander)
1790     {
1791         // TODO-RTL: last column for RTL support
1792         expander = GetOwner()->GetColumnAt( 0 );
1793         GetOwner()->SetExpanderColumn(expander);
1794     }
1795
1796     // redraw all cells for all rows which must be repainted and all columns
1797     wxRect cell_rect;
1798     cell_rect.x = x_start;
1799     for (unsigned int i = col_start; i < col_last; i++)
1800     {
1801         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1802         wxDataViewRenderer *cell = col->GetRenderer();
1803         cell_rect.width = col->GetWidth();
1804
1805         if ( col->IsHidden() || cell_rect.width <= 0 )
1806             continue;       // skip it!
1807
1808         for (unsigned int item = item_start; item < item_last; item++)
1809         {
1810             // get the cell value and set it into the renderer
1811             wxDataViewTreeNode *node = NULL;
1812             wxDataViewItem dataitem;
1813
1814             if (!IsVirtualList())
1815             {
1816                 node = GetTreeNodeByRow(item);
1817                 if( node == NULL )
1818                     continue;
1819
1820                 dataitem = node->GetItem();
1821
1822                 // Skip all columns of "container" rows except the expander
1823                 // column itself unless HasContainerColumns() overrides this.
1824                 if ( col != GetOwner()->GetExpanderColumn() &&
1825                         model->IsContainer(dataitem) &&
1826                             !model->HasContainerColumns(dataitem) )
1827                     continue;
1828             }
1829             else
1830             {
1831                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1832             }
1833
1834             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1835
1836             // update cell_rect
1837             cell_rect.y = GetLineStart( item );
1838             cell_rect.height = GetLineHeight( item );
1839
1840             // deal with the expander
1841             int indent = 0;
1842             if ((!IsList()) && (col == expander))
1843             {
1844                 // Calculate the indent first
1845                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1846
1847                 // we reserve m_lineHeight of horizontal space for the expander
1848                 // but leave EXPANDER_MARGIN around the expander itself
1849                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1850
1851                 indent += m_lineHeight;
1852
1853                 // draw expander if needed and visible
1854                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1855                 {
1856                     dc.SetPen( m_penExpander );
1857                     dc.SetBrush( wxNullBrush );
1858
1859                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1860                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1861                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1862
1863                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1864
1865                     int flag = 0;
1866                     if ( m_underMouse == node )
1867                         flag |= wxCONTROL_CURRENT;
1868                     if ( node->IsOpen() )
1869                         flag |= wxCONTROL_EXPANDED;
1870
1871                     // ensure that we don't overflow the cell (which might
1872                     // happen if the column is very narrow)
1873                     wxDCClipper clip(dc, cell_rect);
1874
1875                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1876                 }
1877
1878                 // force the expander column to left-center align
1879                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1880             }
1881
1882             wxRect item_rect = cell_rect;
1883             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1884
1885             // account for the tree indent (harmless if we're not indented)
1886             item_rect.x += indent;
1887             item_rect.width -= indent;
1888
1889             if ( item_rect.width <= 0 )
1890                 continue;
1891
1892             int state = 0;
1893             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1894                 state |= wxDATAVIEW_CELL_SELECTED;
1895
1896             // TODO: it would be much more efficient to create a clipping
1897             //       region for the entire column being rendered (in the OnPaint
1898             //       of wxDataViewMainWindow) instead of a single clip region for
1899             //       each cell. However it would mean that each renderer should
1900             //       respect the given wxRect's top & bottom coords, eventually
1901             //       violating only the left & right coords - however the user can
1902             //       make its own renderer and thus we cannot be sure of that.
1903             wxDCClipper clip(dc, item_rect);
1904
1905             cell->WXCallRender(item_rect, &dc, state);
1906         }
1907
1908         cell_rect.x += cell_rect.width;
1909     }
1910 }
1911
1912 void wxDataViewMainWindow::OnRenameTimer()
1913 {
1914     // We have to call this here because changes may just have
1915     // been made and no screen update taken place.
1916     if ( m_dirty )
1917     {
1918         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1919         //       (needs to be tested!)
1920         wxSafeYield();
1921     }
1922
1923     wxDataViewItem item = GetItemByRow( m_currentRow );
1924
1925     wxRect labelRect = GetItemRect(item, m_currentCol);
1926
1927     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1928 }
1929
1930 //-----------------------------------------------------------------------------
1931 // Helper class for do operation on the tree node
1932 //-----------------------------------------------------------------------------
1933 class DoJob
1934 {
1935 public:
1936     DoJob() { }
1937     virtual ~DoJob() { }
1938
1939     // The return value control how the tree-walker tranverse the tree
1940     // 0: Job done, stop tranverse and return
1941     // 1: Ignore the current node's subtree and continue
1942     // 2: Job not done, continue
1943     enum  { OK = 0 , IGR = 1, CONT = 2 };
1944     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1945 };
1946
1947 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1948 {
1949     wxCHECK_MSG( node, false, "can't walk NULL node" );
1950
1951     switch( func( node ) )
1952     {
1953         case DoJob::OK:
1954             return true;
1955         case DoJob::IGR:
1956             return false;
1957         case DoJob::CONT:
1958             break;
1959     }
1960
1961     if ( node->HasChildren() )
1962     {
1963         const wxDataViewTreeNodes& nodes = node->GetNodes();
1964
1965         for ( wxDataViewTreeNodes::const_iterator i = nodes.begin();
1966               i != nodes.end();
1967               ++i )
1968         {
1969             if ( Walker(*i, func) )
1970                 return true;
1971         }
1972     }
1973
1974     return false;
1975 }
1976
1977 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
1978 {
1979     if (IsVirtualList())
1980     {
1981         wxDataViewVirtualListModel *list_model =
1982             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1983         m_count = list_model->GetCount();
1984     }
1985     else
1986     {
1987         SortPrepare();
1988
1989         wxDataViewTreeNode *parentNode = FindNode(parent);
1990
1991         if ( !parentNode )
1992             return false;
1993
1994         wxDataViewTreeNode *itemNode = new wxDataViewTreeNode(parentNode, item);
1995         itemNode->SetHasChildren(GetOwner()->GetModel()->IsContainer(item));
1996
1997         parentNode->SetHasChildren(true);
1998         parentNode->AddNode(itemNode);
1999         parentNode->ChangeSubTreeCount(+1);
2000
2001         m_count = -1;
2002     }
2003
2004     GetOwner()->UpdateColBestWidths();
2005     UpdateDisplay();
2006
2007     return true;
2008 }
2009
2010 static void DestroyTreeHelper( wxDataViewTreeNode * node);
2011
2012 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2013                                        const wxDataViewItem& item)
2014 {
2015     if (IsVirtualList())
2016     {
2017         wxDataViewVirtualListModel *list_model =
2018             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
2019         m_count = list_model->GetCount();
2020
2021         if ( !m_selection.empty() )
2022         {
2023             const int row = GetRowByItem(item);
2024
2025             int rowIndexInSelection = wxNOT_FOUND;
2026
2027             const size_t selCount = m_selection.size();
2028             for ( size_t i = 0; i < selCount; i++ )
2029             {
2030                 if ( m_selection[i] == (unsigned)row )
2031                     rowIndexInSelection = i;
2032                 else if ( m_selection[i] > (unsigned)row )
2033                     m_selection[i]--;
2034             }
2035
2036             if ( rowIndexInSelection != wxNOT_FOUND )
2037                 m_selection.RemoveAt(rowIndexInSelection);
2038         }
2039
2040     }
2041     else // general case
2042     {
2043         wxDataViewTreeNode *parentNode = FindNode(parent);
2044
2045         // Notice that it is possible that the item being deleted is not in the
2046         // tree at all, for example we could be deleting a never shown (because
2047         // collapsed) item in a tree model. So it's not an error if we don't know
2048         // about this item, just return without doing anything then.
2049         if ( !parentNode )
2050             return false;
2051
2052         wxCHECK_MSG( parentNode->HasChildren(), false, "parent node doesn't have children?" );
2053         const wxDataViewTreeNodes& parentsChildren = parentNode->GetNodes();
2054
2055         // We can't use FindNode() to find 'item', because it was already
2056         // removed from the model by the time ItemDeleted() is called, so we
2057         // have to do it manually. We keep track of its position as well for
2058         // later use.
2059         int itemPosInNode = 0;
2060         wxDataViewTreeNode *itemNode = NULL;
2061         for ( wxDataViewTreeNodes::const_iterator i = parentsChildren.begin();
2062               i != parentsChildren.end();
2063               ++i, ++itemPosInNode )
2064         {
2065             if( (*i)->GetItem() == item )
2066             {
2067                 itemNode = *i;
2068                 break;
2069             }
2070         }
2071
2072         // If the parent wasn't expanded, it's possible that we didn't have a
2073         // node corresponding to 'item' and so there's nothing left to do.
2074         if ( !itemNode )
2075         {
2076             // If this was the last child to be removed, it's possible the parent
2077             // node became a leaf. Let's ask the model about it.
2078             if ( parentNode->GetNodes().empty() )
2079                 parentNode->SetHasChildren(GetOwner()->GetModel()->IsContainer(parent));
2080
2081             return false;
2082         }
2083
2084         // Delete the item from wxDataViewTreeNode representation:
2085         const int itemsDeleted = 1 + itemNode->GetSubTreeCount();
2086
2087         parentNode->GetNodes().Remove(itemNode);
2088         ::DestroyTreeHelper(itemNode);
2089         parentNode->ChangeSubTreeCount(-itemsDeleted);
2090
2091         // Make the row number invalid and get a new valid one when user call GetRowCount
2092         m_count = -1;
2093
2094         // If this was the last child to be removed, it's possible the parent
2095         // node became a leaf. Let's ask the model about it.
2096         if ( parentNode->GetNodes().empty() )
2097             parentNode->SetHasChildren(GetOwner()->GetModel()->IsContainer(parent));
2098
2099         // Update selection by removing 'item' and its entire children tree from the selection.
2100         if ( !m_selection.empty() )
2101         {
2102             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2103             // the parent ('parentNode') and position in its list of children
2104             int itemRow;
2105             if ( itemPosInNode == 0 )
2106             {
2107                 // 1st child, row number is that of the parent parentNode + 1
2108                 itemRow = GetRowByItem(parentNode->GetItem()) + 1;
2109             }
2110             else
2111             {
2112                 // row number is that of the sibling above 'item' + its subtree if any + 1
2113                 const wxDataViewTreeNode *siblingNode = parentNode->GetNodes()[itemPosInNode - 1];
2114
2115                 itemRow = GetRowByItem(siblingNode->GetItem()) +
2116                           siblingNode->GetSubTreeCount() +
2117                           1;
2118             }
2119
2120             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2121
2122             const size_t numSelections = m_selection.size();
2123             for ( size_t i = 0; i < numSelections; ++i )
2124             {
2125                 const int s = m_selection[i];
2126                 if ( s < itemRow )
2127                     newsel.push_back(s);
2128                 else if ( s >= itemRow + itemsDeleted )
2129                     newsel.push_back(s - itemsDeleted);
2130                 // else: deleted item, remove from selection
2131             }
2132
2133             m_selection = newsel;
2134         }
2135     }
2136
2137     // Change the current row to the last row if the current exceed the max row number
2138     if( m_currentRow > GetRowCount() )
2139         ChangeCurrentRow(m_count - 1);
2140
2141     GetOwner()->UpdateColBestWidths();
2142     UpdateDisplay();
2143
2144     return true;
2145 }
2146
2147 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2148 {
2149     SortPrepare();
2150     g_model->Resort();
2151
2152     GetOwner()->UpdateColBestWidths();
2153
2154     // Send event
2155     wxWindow *parent = GetParent();
2156     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2157     le.SetEventObject(parent);
2158     le.SetModel(GetOwner()->GetModel());
2159     le.SetItem(item);
2160     parent->GetEventHandler()->ProcessEvent(le);
2161
2162     return true;
2163 }
2164
2165 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2166 {
2167     int view_column = -1;
2168     unsigned int n_col = m_owner->GetColumnCount();
2169     for (unsigned i = 0; i < n_col; i++)
2170     {
2171         wxDataViewColumn *column = m_owner->GetColumn( i );
2172         if (column->GetModelColumn() == model_column)
2173         {
2174             view_column = (int) i;
2175             break;
2176         }
2177     }
2178     if (view_column == -1)
2179         return false;
2180
2181     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2182 /*#define MAX_VIRTUAL_WIDTH       100000
2183
2184     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2185     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2186     Refresh( true, &rect );
2187
2188     return true;
2189 */
2190     SortPrepare();
2191     g_model->Resort();
2192
2193     GetOwner()->UpdateColBestWidth(view_column);
2194
2195     // Send event
2196     wxWindow *parent = GetParent();
2197     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2198     le.SetEventObject(parent);
2199     le.SetModel(GetOwner()->GetModel());
2200     le.SetItem(item);
2201     le.SetColumn(view_column);
2202     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2203     parent->GetEventHandler()->ProcessEvent(le);
2204
2205     return true;
2206 }
2207
2208 bool wxDataViewMainWindow::Cleared()
2209 {
2210     DestroyTree();
2211     m_selection.Clear();
2212
2213     SortPrepare();
2214     BuildTree( GetOwner()->GetModel() );
2215
2216     GetOwner()->UpdateColBestWidths();
2217     UpdateDisplay();
2218
2219     return true;
2220 }
2221
2222 void wxDataViewMainWindow::UpdateDisplay()
2223 {
2224     m_dirty = true;
2225     m_underMouse = NULL;
2226 }
2227
2228 void wxDataViewMainWindow::OnInternalIdle()
2229 {
2230     wxWindow::OnInternalIdle();
2231
2232     if (m_dirty)
2233     {
2234         RecalculateDisplay();
2235         m_dirty = false;
2236     }
2237 }
2238
2239 void wxDataViewMainWindow::RecalculateDisplay()
2240 {
2241     wxDataViewModel *model = GetOwner()->GetModel();
2242     if (!model)
2243     {
2244         Refresh();
2245         return;
2246     }
2247
2248     int width = GetEndOfLastCol();
2249     int height = GetLineStart( GetRowCount() );
2250
2251     SetVirtualSize( width, height );
2252     GetOwner()->SetScrollRate( 10, m_lineHeight );
2253
2254     Refresh();
2255 }
2256
2257 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2258 {
2259     m_underMouse = NULL;
2260
2261     wxWindow::ScrollWindow( dx, dy, rect );
2262
2263     if (GetOwner()->m_headerArea)
2264         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2265 }
2266
2267 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2268 {
2269     m_underMouse = NULL;
2270
2271     int x, y;
2272     m_owner->GetScrollPixelsPerUnit( &x, &y );
2273     int sy = GetLineStart( rows )/y;
2274     int sx = 0;
2275     if( column != -1 )
2276     {
2277         wxRect rect = GetClientRect();
2278         int colnum = 0;
2279         int x_start, w = 0;
2280         int xx, yy, xe;
2281         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2282         for (x_start = 0; colnum < column; colnum++)
2283         {
2284             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2285             if (col->IsHidden())
2286                 continue;      // skip it!
2287
2288             w = col->GetWidth();
2289             x_start += w;
2290         }
2291
2292         int x_end = x_start + w;
2293         xe = xx + rect.width;
2294         if( x_end > xe )
2295         {
2296             sx = ( xx + x_end - xe )/x;
2297         }
2298         if( x_start < xx )
2299         {
2300             sx = x_start/x;
2301         }
2302     }
2303     m_owner->Scroll( sx, sy );
2304 }
2305
2306 int wxDataViewMainWindow::GetCountPerPage() const
2307 {
2308     wxSize size = GetClientSize();
2309     return size.y / m_lineHeight;
2310 }
2311
2312 int wxDataViewMainWindow::GetEndOfLastCol() const
2313 {
2314     int width = 0;
2315     unsigned int i;
2316     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2317     {
2318         const wxDataViewColumn *c =
2319             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2320
2321         if (!c->IsHidden())
2322             width += c->GetWidth();
2323     }
2324     return width;
2325 }
2326
2327 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2328 {
2329     int x = 0;
2330     int y = 0;
2331     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2332
2333     return GetLineAt( y );
2334 }
2335
2336 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2337 {
2338     wxSize client_size = GetClientSize();
2339     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2340                                     &client_size.x, &client_size.y );
2341
2342     // we should deal with the pixel here
2343     unsigned int row = GetLineAt(client_size.y) - 1;
2344
2345     return wxMin( GetRowCount()-1, row );
2346 }
2347
2348 unsigned int wxDataViewMainWindow::GetRowCount()
2349 {
2350     if ( m_count == -1 )
2351     {
2352         m_count = RecalculateCount();
2353         UpdateDisplay();
2354     }
2355     return m_count;
2356 }
2357
2358 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2359 {
2360     m_currentRow = row;
2361
2362     // send event
2363 }
2364
2365 void wxDataViewMainWindow::SelectAllRows( bool on )
2366 {
2367     if (IsEmpty())
2368         return;
2369
2370     if (on)
2371     {
2372         m_selection.Clear();
2373         for (unsigned int i = 0; i < GetRowCount(); i++)
2374             m_selection.Add( i );
2375         Refresh();
2376     }
2377     else
2378     {
2379         unsigned int first_visible = GetFirstVisibleRow();
2380         unsigned int last_visible = GetLastVisibleRow();
2381         unsigned int i;
2382         for (i = 0; i < m_selection.GetCount(); i++)
2383         {
2384             unsigned int row = m_selection[i];
2385             if ((row >= first_visible) && (row <= last_visible))
2386                 RefreshRow( row );
2387         }
2388         m_selection.Clear();
2389     }
2390 }
2391
2392 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2393 {
2394     if (m_selection.Index( row ) == wxNOT_FOUND)
2395     {
2396         if (on)
2397         {
2398             m_selection.Add( row );
2399             RefreshRow( row );
2400         }
2401     }
2402     else
2403     {
2404         if (!on)
2405         {
2406             m_selection.Remove( row );
2407             RefreshRow( row );
2408         }
2409     }
2410 }
2411
2412 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2413 {
2414     if (from > to)
2415     {
2416         unsigned int tmp = from;
2417         from = to;
2418         to = tmp;
2419     }
2420
2421     unsigned int i;
2422     for (i = from; i <= to; i++)
2423     {
2424         if (m_selection.Index( i ) == wxNOT_FOUND)
2425         {
2426             if (on)
2427                 m_selection.Add( i );
2428         }
2429         else
2430         {
2431             if (!on)
2432                 m_selection.Remove( i );
2433         }
2434     }
2435     RefreshRows( from, to );
2436 }
2437
2438 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2439 {
2440     for (size_t i=0; i < aSelections.GetCount(); i++)
2441     {
2442         int n = aSelections[i];
2443
2444         m_selection.Add( n );
2445         RefreshRow( n );
2446     }
2447 }
2448
2449 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2450 {
2451     if (m_selection.Index( row ) == wxNOT_FOUND)
2452         m_selection.Add( row );
2453     else
2454         m_selection.Remove( row );
2455     RefreshRow( row );
2456 }
2457
2458 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2459 {
2460     return (m_selection.Index( row ) != wxNOT_FOUND);
2461 }
2462
2463 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2464 {
2465     wxWindow *parent = GetParent();
2466     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2467
2468     le.SetEventObject(parent);
2469     le.SetModel(GetOwner()->GetModel());
2470     le.SetItem( item );
2471
2472     parent->GetEventHandler()->ProcessEvent(le);
2473 }
2474
2475 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2476 {
2477     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2478     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2479
2480     wxSize client_size = GetClientSize();
2481     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2482     wxRect intersect_rect = client_rect.Intersect( rect );
2483     if (intersect_rect.width > 0)
2484         Refresh( true, &intersect_rect );
2485 }
2486
2487 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2488 {
2489     if (from > to)
2490     {
2491         unsigned int tmp = to;
2492         to = from;
2493         from = tmp;
2494     }
2495
2496     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2497     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2498
2499     wxSize client_size = GetClientSize();
2500     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2501     wxRect intersect_rect = client_rect.Intersect( rect );
2502     if (intersect_rect.width > 0)
2503         Refresh( true, &intersect_rect );
2504 }
2505
2506 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2507 {
2508     wxSize client_size = GetClientSize();
2509     int start = GetLineStart( firstRow );
2510     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2511     if (start > client_size.y) return;
2512
2513     wxRect rect( 0, start, client_size.x, client_size.y - start );
2514
2515     Refresh( true, &rect );
2516 }
2517
2518 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2519 {
2520     wxCHECK_RET( newCurrent < GetRowCount(),
2521                 wxT("invalid item index in OnArrowChar()") );
2522
2523     // if there is no selection, we cannot move it anywhere
2524     if (!HasCurrentRow())
2525         return;
2526
2527     unsigned int oldCurrent = m_currentRow;
2528
2529     // in single selection we just ignore Shift as we can't select several
2530     // items anyhow
2531     if ( event.ShiftDown() && !IsSingleSel() )
2532     {
2533         RefreshRow( oldCurrent );
2534
2535         ChangeCurrentRow( newCurrent );
2536
2537         // select all the items between the old and the new one
2538         if ( oldCurrent > newCurrent )
2539         {
2540             newCurrent = oldCurrent;
2541             oldCurrent = m_currentRow;
2542         }
2543
2544         SelectRows( oldCurrent, newCurrent, true );
2545         if (oldCurrent!=newCurrent)
2546             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2547     }
2548     else // !shift
2549     {
2550         RefreshRow( oldCurrent );
2551
2552         // all previously selected items are unselected unless ctrl is held
2553         if ( !event.ControlDown() )
2554             SelectAllRows(false);
2555
2556         ChangeCurrentRow( newCurrent );
2557
2558         if ( !event.ControlDown() )
2559         {
2560             SelectRow( m_currentRow, true );
2561             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2562         }
2563         else
2564             RefreshRow( m_currentRow );
2565     }
2566
2567     GetOwner()->EnsureVisible( m_currentRow, -1 );
2568 }
2569
2570 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2571 {
2572     wxRect rect;
2573     rect.x = 0;
2574     rect.y = GetLineStart( row );
2575     rect.width = GetEndOfLastCol();
2576     rect.height = GetLineHeight( row );
2577
2578     return rect;
2579 }
2580
2581 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2582 {
2583     const wxDataViewModel *model = GetOwner()->GetModel();
2584
2585     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2586     {
2587         // TODO make more efficient
2588
2589         int start = 0;
2590
2591         unsigned int r;
2592         for (r = 0; r < row; r++)
2593         {
2594             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2595             if (!node) return start;
2596
2597             wxDataViewItem item = node->GetItem();
2598
2599             unsigned int cols = GetOwner()->GetColumnCount();
2600             unsigned int col;
2601             int height = m_lineHeight;
2602             for (col = 0; col < cols; col++)
2603             {
2604                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2605                 if (column->IsHidden())
2606                     continue;      // skip it!
2607
2608                 if ((col != 0) &&
2609                     model->IsContainer(item) &&
2610                     !model->HasContainerColumns(item))
2611                     continue;      // skip it!
2612
2613                 wxDataViewRenderer *renderer =
2614                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2615                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2616
2617                 height = wxMax( height, renderer->GetSize().y );
2618             }
2619
2620             start += height;
2621         }
2622
2623         return start;
2624     }
2625     else
2626     {
2627         return row * m_lineHeight;
2628     }
2629 }
2630
2631 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2632 {
2633     const wxDataViewModel *model = GetOwner()->GetModel();
2634
2635     // check for the easy case first
2636     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2637         return y / m_lineHeight;
2638
2639     // TODO make more efficient
2640     unsigned int row = 0;
2641     unsigned int yy = 0;
2642     for (;;)
2643     {
2644         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2645         if (!node)
2646         {
2647             // not really correct...
2648             return row + ((y-yy) / m_lineHeight);
2649         }
2650
2651         wxDataViewItem item = node->GetItem();
2652
2653         unsigned int cols = GetOwner()->GetColumnCount();
2654         unsigned int col;
2655         int height = m_lineHeight;
2656         for (col = 0; col < cols; col++)
2657         {
2658             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2659             if (column->IsHidden())
2660                 continue;      // skip it!
2661
2662             if ((col != 0) &&
2663                 model->IsContainer(item) &&
2664                 !model->HasContainerColumns(item))
2665                 continue;      // skip it!
2666
2667             wxDataViewRenderer *renderer =
2668                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2669             renderer->PrepareForItem(model, item, column->GetModelColumn());
2670
2671             height = wxMax( height, renderer->GetSize().y );
2672         }
2673
2674         yy += height;
2675         if (y < yy)
2676             return row;
2677
2678         row++;
2679     }
2680 }
2681
2682 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2683 {
2684     const wxDataViewModel *model = GetOwner()->GetModel();
2685
2686     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2687     {
2688         wxASSERT( !IsVirtualList() );
2689
2690         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2691         // wxASSERT( node );
2692         if (!node) return m_lineHeight;
2693
2694         wxDataViewItem item = node->GetItem();
2695
2696         int height = m_lineHeight;
2697
2698         unsigned int cols = GetOwner()->GetColumnCount();
2699         unsigned int col;
2700         for (col = 0; col < cols; col++)
2701         {
2702             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2703             if (column->IsHidden())
2704                 continue;      // skip it!
2705
2706             if ((col != 0) &&
2707                 model->IsContainer(item) &&
2708                 !model->HasContainerColumns(item))
2709                 continue;      // skip it!
2710
2711             wxDataViewRenderer *renderer =
2712                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2713             renderer->PrepareForItem(model, item, column->GetModelColumn());
2714
2715             height = wxMax( height, renderer->GetSize().y );
2716         }
2717
2718         return height;
2719     }
2720     else
2721     {
2722         return m_lineHeight;
2723     }
2724 }
2725
2726
2727 class RowToTreeNodeJob: public DoJob
2728 {
2729 public:
2730     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2731     {
2732         this->row = row;
2733         this->current = current;
2734         ret = NULL;
2735         parent = node;
2736     }
2737
2738     virtual int operator() ( wxDataViewTreeNode * node )
2739     {
2740         current ++;
2741         if( current == static_cast<int>(row))
2742         {
2743             ret = node;
2744             return DoJob::OK;
2745         }
2746
2747         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2748         {
2749             current += node->GetSubTreeCount();
2750             return  DoJob::IGR;
2751         }
2752         else
2753         {
2754             parent = node;
2755
2756             // If the current node has only leaf children, we can find the
2757             // desired node directly. This can speed up finding the node
2758             // in some cases, and will have a very good effect for list views.
2759             if ( node->HasChildren() &&
2760                  (int)node->GetNodes().size() == node->GetSubTreeCount() )
2761             {
2762                 const int index = static_cast<int>(row) - current - 1;
2763                 ret = node->GetNodes()[index];
2764                 return DoJob::OK;
2765             }
2766
2767             return DoJob::CONT;
2768         }
2769     }
2770
2771     wxDataViewTreeNode * GetResult() const
2772         { return ret; }
2773
2774 private:
2775     unsigned int row;
2776     int current;
2777     wxDataViewTreeNode * ret;
2778     wxDataViewTreeNode * parent;
2779 };
2780
2781 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2782 {
2783     wxASSERT( !IsVirtualList() );
2784
2785     RowToTreeNodeJob job( row , -2, m_root );
2786     Walker( m_root , job );
2787     return job.GetResult();
2788 }
2789
2790 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2791 {
2792     if (IsVirtualList())
2793     {
2794         return wxDataViewItem( wxUIntToPtr(row+1) );
2795     }
2796     else
2797     {
2798         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2799         return node ? node->GetItem() : wxDataViewItem();
2800     }
2801 }
2802
2803 bool
2804 wxDataViewMainWindow::SendExpanderEvent(wxEventType type,
2805                                         const wxDataViewItem& item)
2806 {
2807     wxWindow *parent = GetParent();
2808     wxDataViewEvent le(type, parent->GetId());
2809
2810     le.SetEventObject(parent);
2811     le.SetModel(GetOwner()->GetModel());
2812     le.SetItem( item );
2813
2814     return !parent->ProcessWindowEvent(le) || le.IsAllowed();
2815 }
2816
2817 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2818 {
2819     if (IsList())
2820         return false;
2821
2822     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2823     if (!node)
2824         return false;
2825
2826     if (!node->HasChildren())
2827         return false;
2828
2829     return node->IsOpen();
2830 }
2831
2832 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2833 {
2834     if (IsList())
2835         return false;
2836
2837     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2838     if (!node)
2839         return false;
2840
2841     if (!node->HasChildren())
2842         return false;
2843
2844     return true;
2845 }
2846
2847 void wxDataViewMainWindow::Expand( unsigned int row )
2848 {
2849     if (IsList())
2850         return;
2851
2852     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2853     if (!node)
2854         return;
2855
2856     if (!node->HasChildren())
2857         return;
2858
2859             if (!node->IsOpen())
2860             {
2861                 if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem()) )
2862                 {
2863                     // Vetoed by the event handler.
2864                     return;
2865                 }
2866
2867                 node->ToggleOpen();
2868
2869                 // build the children of current node
2870                 if( node->GetNodes().empty() )
2871                 {
2872                     SortPrepare();
2873                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2874                 }
2875
2876                 // By expanding the node all row indices that are currently in the selection list
2877                 // and are greater than our node have become invalid. So we have to correct that now.
2878                 const unsigned rowAdjustment = node->GetSubTreeCount();
2879                 for(unsigned i=0; i<m_selection.size(); ++i)
2880                 {
2881                     const unsigned testRow = m_selection[i];
2882                     // all rows above us are not affected, so skip them
2883                     if(testRow <= row)
2884                         continue;
2885
2886                     m_selection[i] += rowAdjustment;
2887                 }
2888
2889                 if(m_currentRow > row)
2890                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2891
2892                 m_count = -1;
2893                 UpdateDisplay();
2894                 // Send the expanded event
2895                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2896             }
2897 }
2898
2899 void wxDataViewMainWindow::Collapse(unsigned int row)
2900 {
2901     if (IsList())
2902         return;
2903
2904     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2905     if (!node)
2906         return;
2907
2908     if (!node->HasChildren())
2909         return;
2910
2911         if (node->IsOpen())
2912         {
2913             if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem()) )
2914             {
2915                 // Vetoed by the event handler.
2916                 return;
2917             }
2918
2919             // Find out if there are selected items below the current node.
2920             bool selectCollapsingRow = false;
2921             const unsigned rowAdjustment = node->GetSubTreeCount();
2922             unsigned maxRowToBeTested = row + rowAdjustment;
2923             for(unsigned i=0; i<m_selection.size(); ++i)
2924             {
2925                 const unsigned testRow = m_selection[i];
2926                 if(testRow > row && testRow <= maxRowToBeTested)
2927                 {
2928                     selectCollapsingRow = true;
2929                     // get out as soon as we have found a node that is selected
2930                     break;
2931                 }
2932             }
2933
2934             node->ToggleOpen();
2935
2936             // If the node to be closed has selected items the user won't see those any longer.
2937             // We select the collapsing node in this case.
2938             if(selectCollapsingRow)
2939             {
2940                 SelectAllRows(false);
2941                 ChangeCurrentRow(row);
2942                 SelectRow(row, true);
2943                 SendSelectionChangedEvent(GetItemByRow(row));
2944             }
2945             else
2946             {
2947                 // if there were no selected items below our node we still need to "fix" the
2948                 // selection list to adjust for the changing of the row indices.
2949                 // We actually do the opposite of what we are doing in Expand().
2950                 for(unsigned i=0; i<m_selection.size(); ++i)
2951                 {
2952                     const unsigned testRow = m_selection[i];
2953                     // all rows above us are not affected, so skip them
2954                     if(testRow <= row)
2955                         continue;
2956
2957                     m_selection[i] -= rowAdjustment;
2958                 }
2959
2960                 // if the "current row" is being collapsed away we change it to the current row ;-)
2961                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
2962                     ChangeCurrentRow(row);
2963                 else if(m_currentRow > row)
2964                     ChangeCurrentRow(m_currentRow - rowAdjustment);
2965             }
2966
2967             m_count = -1;
2968             UpdateDisplay();
2969             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
2970         }
2971 }
2972
2973 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
2974 {
2975     const wxDataViewModel * model = GetOwner()->GetModel();
2976     if( model == NULL )
2977         return NULL;
2978
2979     if (!item.IsOk())
2980         return m_root;
2981
2982     // Compose the parent-chain for the item we are looking for
2983     wxVector<wxDataViewItem> parentChain;
2984     wxDataViewItem it( item );
2985     while( it.IsOk() )
2986     {
2987         parentChain.push_back(it);
2988         it = model->GetParent(it);
2989     }
2990
2991     // Find the item along the parent-chain.
2992     // This algorithm is designed to speed up the node-finding method
2993     wxDataViewTreeNode* node = m_root;
2994     for( unsigned iter = parentChain.size()-1; ; --iter )
2995     {
2996         if( node->HasChildren() )
2997         {
2998             if( node->GetNodes().empty() )
2999             {
3000                 // Even though the item is a container, it doesn't have any
3001                 // child nodes in the control's representation yet. We have
3002                 // to realize its subtree now.
3003                 SortPrepare();
3004                 ::BuildTreeHelper(model, node->GetItem(), node);
3005             }
3006
3007             const wxDataViewTreeNodes& nodes = node->GetNodes();
3008             bool found = false;
3009
3010             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3011             {
3012                 wxDataViewTreeNode* currentNode = nodes[i];
3013                 if (currentNode->GetItem() == parentChain[iter])
3014                 {
3015                     if (currentNode->GetItem() == item)
3016                         return currentNode;
3017
3018                     node = currentNode;
3019                     found = true;
3020                     break;
3021                 }
3022             }
3023             if (!found)
3024                 return NULL;
3025         }
3026         else
3027             return NULL;
3028
3029         if ( !iter )
3030             break;
3031     }
3032     return NULL;
3033 }
3034
3035 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3036                                     wxDataViewColumn* &column )
3037 {
3038     wxDataViewColumn *col = NULL;
3039     unsigned int cols = GetOwner()->GetColumnCount();
3040     unsigned int colnum = 0;
3041     int x, y;
3042     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3043     for (unsigned x_start = 0; colnum < cols; colnum++)
3044     {
3045         col = GetOwner()->GetColumnAt(colnum);
3046         if (col->IsHidden())
3047             continue;      // skip it!
3048
3049         unsigned int w = col->GetWidth();
3050         if (x_start+w >= (unsigned int)x)
3051             break;
3052
3053         x_start += w;
3054     }
3055
3056     column = col;
3057     item = GetItemByRow( GetLineAt( y ) );
3058 }
3059
3060 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3061                                           const wxDataViewColumn* column )
3062 {
3063     int xpos = 0;
3064     int width = 0;
3065
3066     unsigned int cols = GetOwner()->GetColumnCount();
3067     // If column is null the loop will compute the combined width of all columns.
3068     // Otherwise, it will compute the x position of the column we are looking for.
3069     for (unsigned int i = 0; i < cols; i++)
3070     {
3071         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3072
3073         if (col == column)
3074             break;
3075
3076         if (col->IsHidden())
3077             continue;      // skip it!
3078
3079         xpos += col->GetWidth();
3080         width += col->GetWidth();
3081     }
3082
3083     if(column != 0)
3084     {
3085         // If we have a column, we need can get its width directly.
3086         if(column->IsHidden())
3087             width = 0;
3088         else
3089             width = column->GetWidth();
3090
3091     }
3092     else
3093     {
3094         // If we have no column, we reset the x position back to zero.
3095         xpos = 0;
3096     }
3097
3098     // we have to take an expander column into account and compute its indentation
3099     // to get the correct x position where the actual text is
3100     int indent = 0;
3101     int row = GetRowByItem(item);
3102     if (!IsList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3103     {
3104         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3105         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3106         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3107     }
3108
3109     wxRect itemRect( xpos + indent,
3110                      GetLineStart( row ),
3111                      width - indent,
3112                      GetLineHeight( row ) );
3113
3114     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3115                                       &itemRect.x, &itemRect.y );
3116
3117     return itemRect;
3118 }
3119
3120 int wxDataViewMainWindow::RecalculateCount()
3121 {
3122     if (IsVirtualList())
3123     {
3124         wxDataViewVirtualListModel *list_model =
3125             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3126
3127         return list_model->GetCount();
3128     }
3129     else
3130     {
3131         return m_root->GetSubTreeCount();
3132     }
3133 }
3134
3135 class ItemToRowJob : public DoJob
3136 {
3137 public:
3138     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3139         : m_iter(iter),
3140         item(item_)
3141     {
3142         ret = -1;
3143     }
3144
3145     // Maybe binary search will help to speed up this process
3146     virtual int operator() ( wxDataViewTreeNode * node)
3147     {
3148         ret ++;
3149         if( node->GetItem() == item )
3150         {
3151             return DoJob::OK;
3152         }
3153
3154         if( node->GetItem() == *m_iter )
3155         {
3156             m_iter++;
3157             return DoJob::CONT;
3158         }
3159         else
3160         {
3161             ret += node->GetSubTreeCount();
3162             return DoJob::IGR;
3163         }
3164
3165     }
3166
3167     // the row number is begin from zero
3168     int GetResult() const
3169         { return ret -1; }
3170
3171 private:
3172     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3173     wxDataViewItem item;
3174     int ret;
3175
3176 };
3177
3178 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3179 {
3180     const wxDataViewModel * model = GetOwner()->GetModel();
3181     if( model == NULL )
3182         return -1;
3183
3184     if (IsVirtualList())
3185     {
3186         return wxPtrToUInt( item.GetID() ) -1;
3187     }
3188     else
3189     {
3190         if( !item.IsOk() )
3191             return -1;
3192
3193         // Compose the parent-chain of the item we are looking for
3194         wxVector<wxDataViewItem> parentChain;
3195         wxDataViewItem it( item );
3196         while( it.IsOk() )
3197         {
3198             parentChain.push_back(it);
3199             it = model->GetParent(it);
3200         }
3201
3202         // add an 'invalid' item to represent our 'invisible' root node
3203         parentChain.push_back(wxDataViewItem());
3204
3205         // the parent chain was created by adding the deepest parent first.
3206         // so if we want to start at the root node, we have to iterate backwards through the vector
3207         ItemToRowJob job( item, parentChain.rbegin() );
3208         Walker( m_root, job );
3209         return job.GetResult();
3210     }
3211 }
3212
3213 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3214                              wxDataViewTreeNode * node)
3215 {
3216     if( !model->IsContainer( item ) )
3217         return;
3218
3219     wxDataViewItemArray children;
3220     unsigned int num = model->GetChildren( item, children);
3221
3222     for ( unsigned int index = 0; index < num; index++ )
3223     {
3224         wxDataViewTreeNode *n = new wxDataViewTreeNode(node, children[index]);
3225
3226         if( model->IsContainer(children[index]) )
3227             n->SetHasChildren( true );
3228
3229         node->AddNode(n);
3230     }
3231
3232     wxASSERT( node->IsOpen() );
3233     node->ChangeSubTreeCount(+num);
3234 }
3235
3236 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3237 {
3238     DestroyTree();
3239
3240     if (GetOwner()->GetModel()->IsVirtualListModel())
3241     {
3242         m_count = -1;
3243         return;
3244     }
3245
3246     m_root = wxDataViewTreeNode::CreateRootNode();
3247
3248     // First we define a invalid item to fetch the top-level elements
3249     wxDataViewItem item;
3250     SortPrepare();
3251     BuildTreeHelper( model, item, m_root);
3252     m_count = -1;
3253 }
3254
3255 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3256 {
3257     if ( node->HasChildren() )
3258     {
3259         wxDataViewTreeNodes& nodes = node->GetNodes();
3260         const int len = nodes.size();
3261         for (int i = 0; i < len; i++)
3262             DestroyTreeHelper(nodes[i]);
3263     }
3264     delete node;
3265 }
3266
3267 void wxDataViewMainWindow::DestroyTree()
3268 {
3269     if (!IsVirtualList())
3270     {
3271         ::DestroyTreeHelper(m_root);
3272             m_count = 0;
3273             m_root = NULL;
3274     }
3275 }
3276
3277 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3278 {
3279     wxWindow * const parent = GetParent();
3280
3281     // propagate the char event upwards
3282     wxKeyEvent eventForParent(event);
3283     eventForParent.SetEventObject(parent);
3284     if ( parent->ProcessWindowEvent(eventForParent) )
3285         return;
3286
3287     if ( parent->HandleAsNavigationKey(event) )
3288         return;
3289
3290     // no item -> nothing to do
3291     if (!HasCurrentRow())
3292     {
3293         event.Skip();
3294         return;
3295     }
3296
3297     // don't use m_linesPerPage directly as it might not be computed yet
3298     const int pageSize = GetCountPerPage();
3299     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3300
3301     switch ( event.GetKeyCode() )
3302     {
3303         case WXK_RETURN:
3304             {
3305                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3306                                    parent->GetId());
3307                 le.SetItem( GetItemByRow(m_currentRow) );
3308                 le.SetEventObject(parent);
3309                 le.SetModel(GetOwner()->GetModel());
3310
3311                 parent->GetEventHandler()->ProcessEvent(le);
3312             }
3313             break;
3314
3315         case WXK_UP:
3316             if ( m_currentRow > 0 )
3317                 OnArrowChar( m_currentRow - 1, event );
3318             break;
3319
3320         case WXK_DOWN:
3321             if ( m_currentRow + 1 < GetRowCount() )
3322                 OnArrowChar( m_currentRow + 1, event );
3323             break;
3324         // Add the process for tree expanding/collapsing
3325         case WXK_LEFT:
3326         {
3327             if (IsList())
3328                break;
3329
3330             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3331             if (!node)
3332                 break;
3333
3334             if (node->HasChildren() && node->IsOpen())
3335             {
3336                 Collapse(m_currentRow);
3337             }
3338             else    // if the node is already closed we move the selection to its parent
3339             {
3340                 wxDataViewTreeNode *parent_node = node->GetParent();
3341
3342                 if (parent_node)
3343                 {
3344                     int parent = GetRowByItem( parent_node->GetItem() );
3345                     if ( parent >= 0 )
3346                     {
3347                         unsigned int row = m_currentRow;
3348                         SelectRow( row, false);
3349                         SelectRow( parent, true );
3350                         ChangeCurrentRow( parent );
3351                         GetOwner()->EnsureVisible( parent, -1 );
3352                         SendSelectionChangedEvent( parent_node->GetItem() );
3353                     }
3354                 }
3355             }
3356             break;
3357         }
3358         case WXK_RIGHT:
3359         {
3360             if (!IsExpanded( m_currentRow ))
3361                 Expand( m_currentRow );
3362             else
3363             {
3364                 unsigned int row = m_currentRow;
3365                 SelectRow( row, false );
3366                 SelectRow( row + 1, true );
3367                 ChangeCurrentRow( row + 1 );
3368                 GetOwner()->EnsureVisible( row + 1, -1 );
3369                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3370             }
3371             break;
3372         }
3373         case WXK_END:
3374         {
3375             if (!IsEmpty())
3376                 OnArrowChar( GetRowCount() - 1, event );
3377             break;
3378         }
3379         case WXK_HOME:
3380             if (!IsEmpty())
3381                 OnArrowChar( 0, event );
3382             break;
3383
3384         case WXK_PAGEUP:
3385             {
3386                 int steps = pageSize - 1;
3387                 int index = m_currentRow - steps;
3388                 if (index < 0)
3389                     index = 0;
3390
3391                 OnArrowChar( index, event );
3392             }
3393             break;
3394
3395         case WXK_PAGEDOWN:
3396             {
3397                 int steps = pageSize - 1;
3398                 unsigned int index = m_currentRow + steps;
3399                 unsigned int count = GetRowCount();
3400                 if ( index >= count )
3401                     index = count - 1;
3402
3403                 OnArrowChar( index, event );
3404             }
3405             break;
3406
3407         case WXK_F2:
3408             {
3409                 if(m_selection.size() == 1)
3410                 {
3411                     // TODO: we need to revise that when we have a concept for a 'current column'
3412                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3413                 }
3414             }
3415             break;
3416
3417         default:
3418             event.Skip();
3419     }
3420 }
3421
3422 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3423 {
3424     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3425     {
3426         // let the base handle mouse wheel events.
3427         event.Skip();
3428         return;
3429     }
3430
3431     // set the focus to ourself if any of the mouse buttons are pressed
3432     if(event.ButtonDown() && !HasFocus())
3433         SetFocus();
3434
3435     int x = event.GetX();
3436     int y = event.GetY();
3437     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3438     wxDataViewColumn *col = NULL;
3439
3440     int xpos = 0;
3441     unsigned int cols = GetOwner()->GetColumnCount();
3442     unsigned int i;
3443     for (i = 0; i < cols; i++)
3444     {
3445         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3446         if (c->IsHidden())
3447             continue;      // skip it!
3448
3449         if (x < xpos + c->GetWidth())
3450         {
3451             col = c;
3452             break;
3453         }
3454         xpos += c->GetWidth();
3455     }
3456     if (!col)
3457     {
3458         event.Skip();
3459         return;
3460     }
3461
3462     wxDataViewRenderer *cell = col->GetRenderer();
3463     unsigned int current = GetLineAt( y );
3464     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3465     {
3466         // Unselect all if below the last row ?
3467         event.Skip();
3468         return;
3469     }
3470
3471     // Test whether the mouse is hovering over the expander (a.k.a tree "+"
3472     // button) and also determine the offset of the real cell start, skipping
3473     // the indentation and the expander itself.
3474     bool hoverOverExpander = false;
3475     int expanderOffset = 0;
3476     if ((!IsList()) && (GetOwner()->GetExpanderColumn() == col))
3477     {
3478         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3479         if( node!=NULL && node->HasChildren() )
3480         {
3481             int indent = node->GetIndentLevel();
3482             indent = GetOwner()->GetIndent()*indent;
3483
3484             // we make the rectangle we are looking in a bit bigger than the actual
3485             // visual expander so the user can hit that little thing reliably
3486             wxRect rect( xpos + indent,
3487                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3488                         m_lineHeight, m_lineHeight);
3489
3490             expanderOffset = indent + m_lineHeight;
3491
3492             if( rect.Contains(x, y) )
3493             {
3494                 // So the mouse is over the expander
3495                 hoverOverExpander = true;
3496                 if (m_underMouse && m_underMouse != node)
3497                 {
3498                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3499                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3500                 }
3501                 if (m_underMouse != node)
3502                 {
3503                     // wxLogMessage("Do the row: %d", current);
3504                     RefreshRow(current);
3505                 }
3506                 m_underMouse = node;
3507             }
3508         }
3509     }
3510     if (!hoverOverExpander)
3511     {
3512         if (m_underMouse != NULL)
3513         {
3514             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3515             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3516             m_underMouse = NULL;
3517         }
3518     }
3519
3520     wxDataViewModel *model = GetOwner()->GetModel();
3521
3522 #if wxUSE_DRAG_AND_DROP
3523     if (event.Dragging())
3524     {
3525         if (m_dragCount == 0)
3526         {
3527             // we have to report the raw, physical coords as we want to be
3528             // able to call HitTest(event.m_pointDrag) from the user code to
3529             // get the item being dragged
3530             m_dragStart = event.GetPosition();
3531         }
3532
3533         m_dragCount++;
3534
3535         if (m_dragCount != 3)
3536             return;
3537
3538         if (event.LeftIsDown())
3539         {
3540             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3541                                              &m_dragStart.x, &m_dragStart.y );
3542             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3543             wxDataViewItem item = GetItemByRow( drag_item_row );
3544
3545             // Notify cell about drag
3546             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3547             event.SetEventObject( m_owner );
3548             event.SetItem( item );
3549             event.SetModel( model );
3550             if (!m_owner->HandleWindowEvent( event ))
3551                 return;
3552
3553             if (!event.IsAllowed())
3554                 return;
3555
3556             wxDataObject *obj = event.GetDataObject();
3557             if (!obj)
3558                 return;
3559
3560             wxDataViewDropSource drag( this, drag_item_row );
3561             drag.SetData( *obj );
3562             /* wxDragResult res = */ drag.DoDragDrop();
3563             delete obj;
3564         }
3565         return;
3566     }
3567     else
3568     {
3569         m_dragCount = 0;
3570     }
3571 #endif // wxUSE_DRAG_AND_DROP
3572
3573     bool simulateClick = false;
3574
3575     if (event.ButtonDClick())
3576     {
3577         m_renameTimer->Stop();
3578         m_lastOnSame = false;
3579     }
3580
3581     wxDataViewItem item = GetItemByRow(current);
3582     bool ignore_other_columns =
3583         ((GetOwner()->GetExpanderColumn() != col) &&
3584         (model->IsContainer(item)) &&
3585         (!model->HasContainerColumns(item)));
3586
3587     if (event.LeftDClick())
3588     {
3589         if(hoverOverExpander)
3590         {
3591             // a double click on the expander will be converted into a "simulated" normal click
3592             simulateClick = true;
3593         }
3594         else if ( current == m_lineLastClicked )
3595         {
3596             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3597             {
3598                 const unsigned colIdx = col->GetModelColumn();
3599
3600                 cell->PrepareForItem(model, item, colIdx);
3601
3602                 wxRect cell_rect( xpos, GetLineStart( current ),
3603                                 col->GetWidth(), GetLineHeight( current ) );
3604                 cell->WXOnActivate( cell_rect, model, item, colIdx );
3605             }
3606             else
3607             {
3608                 wxWindow *parent = GetParent();
3609                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3610                 le.SetItem( item );
3611                 le.SetColumn( col->GetModelColumn() );
3612                 le.SetDataViewColumn( col );
3613                 le.SetEventObject(parent);
3614                 le.SetModel(GetOwner()->GetModel());
3615
3616                 parent->GetEventHandler()->ProcessEvent(le);
3617             }
3618             return;
3619         }
3620         else
3621         {
3622             // The first click was on another item, so don't interpret this as
3623             // a double click, but as a simple click instead
3624             simulateClick = true;
3625         }
3626     }
3627
3628     if (event.LeftUp() && !hoverOverExpander)
3629     {
3630         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3631         {
3632             // select single line
3633             SelectAllRows( false );
3634             SelectRow( m_lineSelectSingleOnUp, true );
3635             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3636         }
3637
3638         // If the user click the expander, we do not do editing even if the column
3639         // with expander are editable
3640         if (m_lastOnSame && !ignore_other_columns)
3641         {
3642             if ((col == m_currentCol) && (current == m_currentRow) &&
3643                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3644             {
3645                 m_renameTimer->Start( 100, true );
3646             }
3647         }
3648
3649         m_lastOnSame = false;
3650         m_lineSelectSingleOnUp = (unsigned int)-1;
3651     }
3652     else if(!event.LeftUp())
3653     {
3654         // This is necessary, because after a DnD operation in
3655         // from and to ourself, the up event is swallowed by the
3656         // DnD code. So on next non-up event (which means here and
3657         // now) m_lineSelectSingleOnUp should be reset.
3658         m_lineSelectSingleOnUp = (unsigned int)-1;
3659     }
3660
3661     if (event.RightDown())
3662     {
3663         m_lineBeforeLastClicked = m_lineLastClicked;
3664         m_lineLastClicked = current;
3665
3666         // If the item is already selected, do not update the selection.
3667         // Multi-selections should not be cleared if a selected item is clicked.
3668         if (!IsRowSelected(current))
3669         {
3670             SelectAllRows(false);
3671             const unsigned oldCurrent = m_currentRow;
3672             ChangeCurrentRow(current);
3673             SelectRow(m_currentRow,true);
3674             RefreshRow(oldCurrent);
3675             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3676         }
3677     }
3678     else if (event.RightUp())
3679     {
3680         wxVariant value;
3681         model->GetValue( value, item, col->GetModelColumn() );
3682         wxWindow *parent = GetParent();
3683         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3684         le.SetItem( item );
3685         le.SetColumn( col->GetModelColumn() );
3686         le.SetDataViewColumn( col );
3687         le.SetEventObject(parent);
3688         le.SetModel(GetOwner()->GetModel());
3689         le.SetValue(value);
3690         parent->GetEventHandler()->ProcessEvent(le);
3691     }
3692     else if (event.MiddleDown())
3693     {
3694     }
3695
3696     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3697     {
3698         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3699
3700         // hoverOverExpander being true tells us that our node must be
3701         // valid and have children.
3702         // So we don't need any extra checks.
3703         if( node->IsOpen() )
3704             Collapse(current);
3705         else
3706             Expand(current);
3707     }
3708     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3709     {
3710         m_lineBeforeLastClicked = m_lineLastClicked;
3711         m_lineLastClicked = current;
3712
3713         unsigned int oldCurrentRow = m_currentRow;
3714         bool oldWasSelected = IsRowSelected(m_currentRow);
3715
3716         bool cmdModifierDown = event.CmdDown();
3717         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3718         {
3719             if ( IsSingleSel() || !IsRowSelected(current) )
3720             {
3721                 SelectAllRows( false );
3722                 ChangeCurrentRow(current);
3723                 SelectRow(m_currentRow,true);
3724                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3725             }
3726             else // multi sel & current is highlighted & no mod keys
3727             {
3728                 m_lineSelectSingleOnUp = current;
3729                 ChangeCurrentRow(current); // change focus
3730             }
3731         }
3732         else // multi sel & either ctrl or shift is down
3733         {
3734             if (cmdModifierDown)
3735             {
3736                 ChangeCurrentRow(current);
3737                 ReverseRowSelection(m_currentRow);
3738                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3739             }
3740             else if (event.ShiftDown())
3741             {
3742                 ChangeCurrentRow(current);
3743
3744                 unsigned int lineFrom = oldCurrentRow,
3745                     lineTo = current;
3746
3747                 if ( lineTo < lineFrom )
3748                 {
3749                     lineTo = lineFrom;
3750                     lineFrom = m_currentRow;
3751                 }
3752
3753                 SelectRows(lineFrom, lineTo, true);
3754                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3755             }
3756             else // !ctrl, !shift
3757             {
3758                 // test in the enclosing if should make it impossible
3759                 wxFAIL_MSG( wxT("how did we get here?") );
3760             }
3761         }
3762
3763         if (m_currentRow != oldCurrentRow)
3764             RefreshRow( oldCurrentRow );
3765
3766         wxDataViewColumn *oldCurrentCol = m_currentCol;
3767
3768         // Update selection here...
3769         m_currentCol = col;
3770
3771         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3772                         (current == oldCurrentRow)) && oldWasSelected;
3773
3774         // Call LeftClick after everything else as under GTK+
3775         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3776         {
3777             // notify cell about click
3778             cell->PrepareForItem(model, item, col->GetModelColumn());
3779
3780             wxRect cell_rect( xpos + expanderOffset,
3781                               GetLineStart( current ),
3782                               col->GetWidth() - expanderOffset,
3783                               GetLineHeight( current ) );
3784
3785             // Report position relative to the cell's custom area, i.e.
3786             // no the entire space as given by the control but the one
3787             // used by the renderer after calculation of alignment etc.
3788
3789             // adjust the rectangle ourselves to account for the alignment
3790             wxRect rectItem = cell_rect;
3791             const int align = cell->GetAlignment();
3792             if ( align != wxDVR_DEFAULT_ALIGNMENT )
3793             {
3794                 const wxSize size = cell->GetSize();
3795
3796                 if ( size.x >= 0 && size.x < cell_rect.width )
3797                 {
3798                     if ( align & wxALIGN_CENTER_HORIZONTAL )
3799                         rectItem.x += (cell_rect.width - size.x)/2;
3800                     else if ( align & wxALIGN_RIGHT )
3801                         rectItem.x += cell_rect.width - size.x;
3802                     // else: wxALIGN_LEFT is the default
3803                 }
3804
3805                 if ( size.y >= 0 && size.y < cell_rect.height )
3806                 {
3807                     if ( align & wxALIGN_CENTER_VERTICAL )
3808                         rectItem.y += (cell_rect.height - size.y)/2;
3809                     else if ( align & wxALIGN_BOTTOM )
3810                         rectItem.y += cell_rect.height - size.y;
3811                     // else: wxALIGN_TOP is the default
3812                 }
3813             }
3814
3815             wxPoint pos( event.GetPosition() );
3816             pos.x -= rectItem.x;
3817             pos.y -= rectItem.y;
3818
3819             m_owner->CalcUnscrolledPosition( pos.x, pos.y, &pos.x, &pos.y );
3820
3821              /* ignore ret */ cell->WXOnLeftClick( pos, cell_rect,
3822                               model, item, col->GetModelColumn());
3823         }
3824     }
3825 }
3826
3827 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3828 {
3829     m_hasFocus = true;
3830
3831     if (HasCurrentRow())
3832         Refresh();
3833
3834     event.Skip();
3835 }
3836
3837 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3838 {
3839     m_hasFocus = false;
3840
3841     if (HasCurrentRow())
3842         Refresh();
3843
3844     event.Skip();
3845 }
3846
3847 //-----------------------------------------------------------------------------
3848 // wxDataViewCtrl
3849 //-----------------------------------------------------------------------------
3850
3851 WX_DEFINE_LIST(wxDataViewColumnList)
3852
3853 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3854 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3855     EVT_SIZE(wxDataViewCtrl::OnSize)
3856 END_EVENT_TABLE()
3857
3858 wxDataViewCtrl::~wxDataViewCtrl()
3859 {
3860     if (m_notifier)
3861         GetModel()->RemoveNotifier( m_notifier );
3862
3863     m_cols.Clear();
3864     m_colsBestWidths.clear();
3865 }
3866
3867 void wxDataViewCtrl::Init()
3868 {
3869     m_cols.DeleteContents(true);
3870     m_notifier = NULL;
3871
3872     // No sorting column at start
3873     m_sortingColumnIdx = wxNOT_FOUND;
3874
3875     m_headerArea = NULL;
3876 }
3877
3878 bool wxDataViewCtrl::Create(wxWindow *parent,
3879                             wxWindowID id,
3880                             const wxPoint& pos,
3881                             const wxSize& size,
3882                             long style,
3883                             const wxValidator& validator,
3884                             const wxString& name)
3885 {
3886 //    if ( (style & wxBORDER_MASK) == 0)
3887 //        style |= wxBORDER_SUNKEN;
3888
3889     Init();
3890
3891     if (!wxControl::Create( parent, id, pos, size,
3892                             style | wxScrolledWindowStyle, validator, name))
3893         return false;
3894
3895     SetInitialSize(size);
3896
3897 #ifdef __WXMAC__
3898     MacSetClipChildren( true );
3899 #endif
3900
3901     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
3902
3903     // We use the cursor keys for moving the selection, not scrolling, so call
3904     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
3905     // keyboard events forwarded to us from wxListMainWindow.
3906     DisableKeyboardScrolling();
3907
3908     if (HasFlag(wxDV_NO_HEADER))
3909         m_headerArea = NULL;
3910     else
3911         m_headerArea = new wxDataViewHeaderWindow(this);
3912
3913     SetTargetWindow( m_clientArea );
3914
3915     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
3916     if (m_headerArea)
3917         sizer->Add( m_headerArea, 0, wxGROW );
3918     sizer->Add( m_clientArea, 1, wxGROW );
3919     SetSizer( sizer );
3920
3921     return true;
3922 }
3923
3924 wxBorder wxDataViewCtrl::GetDefaultBorder() const
3925 {
3926     return wxBORDER_THEME;
3927 }
3928
3929 #ifdef __WXMSW__
3930 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
3931                                         WXWPARAM wParam,
3932                                         WXLPARAM lParam)
3933 {
3934     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
3935
3936 #ifndef __WXWINCE__
3937     // we need to process arrows ourselves for scrolling
3938     if ( nMsg == WM_GETDLGCODE )
3939     {
3940         rc |= DLGC_WANTARROWS;
3941     }
3942 #endif
3943
3944     return rc;
3945 }
3946 #endif
3947
3948 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
3949 {
3950     wxSize newsize = size;
3951     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
3952     newsize.y -= m_headerArea->GetSize().y;
3953
3954     return newsize;
3955 }
3956
3957 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
3958 {
3959     // We need to override OnSize so that our scrolled
3960     // window a) does call Layout() to use sizers for
3961     // positioning the controls but b) does not query
3962     // the sizer for their size and use that for setting
3963     // the scrollable area as set that ourselves by
3964     // calling SetScrollbar() further down.
3965
3966     Layout();
3967
3968     AdjustScrollbars();
3969
3970     // We must redraw the headers if their height changed. Normally this
3971     // shouldn't happen as the control shouldn't let itself be resized beneath
3972     // its minimal height but avoid the display artefacts that appear if it
3973     // does happen, e.g. because there is really not enough vertical space.
3974     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
3975             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
3976     {
3977         m_headerArea->Refresh();
3978     }
3979 }
3980
3981 void wxDataViewCtrl::SetFocus()
3982 {
3983     if (m_clientArea)
3984         m_clientArea->SetFocus();
3985 }
3986
3987 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
3988 {
3989     if (!wxDataViewCtrlBase::AssociateModel( model ))
3990         return false;
3991
3992     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
3993
3994     model->AddNotifier( m_notifier );
3995
3996     m_clientArea->DestroyTree();
3997
3998     m_clientArea->BuildTree(model);
3999
4000     m_clientArea->UpdateDisplay();
4001
4002     return true;
4003 }
4004
4005 #if wxUSE_DRAG_AND_DROP
4006
4007 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4008 {
4009     return m_clientArea->EnableDragSource( format );
4010 }
4011
4012 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4013 {
4014     return m_clientArea->EnableDropTarget( format );
4015 }
4016
4017 #endif // wxUSE_DRAG_AND_DROP
4018
4019 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4020 {
4021     if (!wxDataViewCtrlBase::AppendColumn(col))
4022         return false;
4023
4024     m_cols.Append( col );
4025     m_colsBestWidths.push_back(0);
4026     OnColumnsCountChanged();
4027     return true;
4028 }
4029
4030 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4031 {
4032     if (!wxDataViewCtrlBase::PrependColumn(col))
4033         return false;
4034
4035     m_cols.Insert( col );
4036     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4037     OnColumnsCountChanged();
4038     return true;
4039 }
4040
4041 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4042 {
4043     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4044         return false;
4045
4046     m_cols.Insert( pos, col );
4047     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4048     OnColumnsCountChanged();
4049     return true;
4050 }
4051
4052 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4053 {
4054     if ( m_headerArea )
4055         m_headerArea->UpdateColumn(idx);
4056
4057     m_clientArea->UpdateDisplay();
4058 }
4059
4060 void wxDataViewCtrl::OnColumnsCountChanged()
4061 {
4062     if (m_headerArea)
4063         m_headerArea->SetColumnCount(GetColumnCount());
4064
4065     m_clientArea->UpdateDisplay();
4066 }
4067
4068 void wxDataViewCtrl::DoSetExpanderColumn()
4069 {
4070     m_clientArea->UpdateDisplay();
4071 }
4072
4073 void wxDataViewCtrl::DoSetIndent()
4074 {
4075     m_clientArea->UpdateDisplay();
4076 }
4077
4078 unsigned int wxDataViewCtrl::GetColumnCount() const
4079 {
4080     return m_cols.GetCount();
4081 }
4082
4083 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4084 {
4085     if ( !m_clientArea )
4086         return false;
4087
4088     m_clientArea->SetRowHeight(lineHeight);
4089
4090     return true;
4091 }
4092
4093 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4094 {
4095     return m_cols[idx];
4096 }
4097
4098 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4099 {
4100     // columns can't be reordered if there is no header window which allows
4101     // to do this
4102     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4103                                     : pos;
4104
4105     return GetColumn(idx);
4106 }
4107
4108 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4109 {
4110     const unsigned count = m_cols.size();
4111     for ( unsigned n = 0; n < count; n++ )
4112     {
4113         if ( m_cols[n] == column )
4114             return n;
4115     }
4116
4117     return wxNOT_FOUND;
4118 }
4119
4120 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4121 {
4122     if ( m_colsBestWidths[idx] != 0 )
4123         return m_colsBestWidths[idx];
4124
4125     const int count = m_clientArea->GetRowCount();
4126     wxDataViewColumn *column = GetColumn(idx);
4127     wxDataViewRenderer *renderer =
4128         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4129
4130     class MaxWidthCalculator
4131     {
4132     public:
4133         MaxWidthCalculator(wxDataViewMainWindow *clientArea,
4134                            wxDataViewRenderer *renderer,
4135                            const wxDataViewModel *model,
4136                            unsigned column)
4137             : m_width(0),
4138               m_clientArea(clientArea),
4139               m_renderer(renderer),
4140               m_model(model),
4141               m_column(column)
4142         {
4143         }
4144
4145         void UpdateWithWidth(int width)
4146         {
4147             m_width = wxMax(m_width, width);
4148         }
4149
4150         void UpdateWithRow(int row)
4151         {
4152             wxDataViewItem item = m_clientArea->GetItemByRow(row);
4153             m_renderer->PrepareForItem(m_model, item, m_column);
4154             m_width = wxMax(m_width, m_renderer->GetSize().x);
4155         }
4156
4157         int GetMaxWidth() const { return m_width; }
4158
4159     private:
4160         int m_width;
4161         wxDataViewMainWindow *m_clientArea;
4162         wxDataViewRenderer *m_renderer;
4163         const wxDataViewModel *m_model;
4164         unsigned m_column;
4165     };
4166
4167     MaxWidthCalculator calculator(m_clientArea, renderer,
4168                                   GetModel(), column->GetModelColumn());
4169
4170     if ( m_headerArea )
4171     {
4172         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4173         // Labels on native MSW header are indented on both sides
4174         header_width +=
4175             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4176         calculator.UpdateWithWidth(header_width);
4177     }
4178
4179     // The code below deserves some explanation. For very large controls, we
4180     // simply can't afford to calculate sizes for all items, it takes too
4181     // long. So the best we can do is to check the first and the last N/2
4182     // items in the control for some sufficiently large N and calculate best
4183     // sizes from that. That can result in the calculated best width being too
4184     // small for some outliers, but it's better to get slightly imperfect
4185     // result than to wait several seconds after every update. To avoid highly
4186     // visible miscalculations, we also include all currently visible items
4187     // no matter what.  Finally, the value of N is determined dynamically by
4188     // measuring how much time we spent on the determining item widths so far.
4189
4190 #if wxUSE_STOPWATCH
4191     int top_part_end = count;
4192     static const long CALC_TIMEOUT = 20/*ms*/;
4193     // don't call wxStopWatch::Time() too often
4194     static const unsigned CALC_CHECK_FREQ = 100;
4195     wxStopWatch timer;
4196 #else
4197     // use some hard-coded limit, that's the best we can do without timer
4198     int top_part_end = wxMin(500, count);
4199 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4200
4201     int row = 0;
4202
4203     for ( row = 0; row < top_part_end; row++ )
4204     {
4205 #if wxUSE_STOPWATCH
4206         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4207              timer.Time() > CALC_TIMEOUT )
4208             break;
4209 #endif // wxUSE_STOPWATCH
4210         calculator.UpdateWithRow(row);
4211     }
4212
4213     // row is the first unmeasured item now; that's our value of N/2
4214
4215     if ( row < count )
4216     {
4217         top_part_end = row;
4218
4219         // add bottom N/2 items now:
4220         const int bottom_part_start = wxMax(row, count - row);
4221         for ( row = bottom_part_start; row < count; row++ )
4222         {
4223             calculator.UpdateWithRow(row);
4224         }
4225
4226         // finally, include currently visible items in the calculation:
4227         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4228         int first_visible = m_clientArea->GetLineAt(origin.y);
4229         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4230
4231         first_visible = wxMax(first_visible, top_part_end);
4232         last_visible = wxMin(bottom_part_start, last_visible);
4233
4234         for ( row = first_visible; row < last_visible; row++ )
4235         {
4236             calculator.UpdateWithRow(row);
4237         }
4238
4239         wxLogTrace("dataview",
4240                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4241                    top_part_end,
4242                    count - bottom_part_start,
4243                    wxMax(0, last_visible - first_visible),
4244                    count);
4245     }
4246
4247     int max_width = calculator.GetMaxWidth();
4248     if ( max_width > 0 )
4249         max_width += 2 * PADDING_RIGHTLEFT;
4250
4251     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4252     return max_width;
4253 }
4254
4255 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4256                                 unsigned int WXUNUSED(new_pos))
4257 {
4258     // do _not_ reorder m_cols elements here, they should always be in the
4259     // order in which columns were added, we only display the columns in
4260     // different order
4261     m_clientArea->UpdateDisplay();
4262 }
4263
4264 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4265 {
4266     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4267     if (!ret)
4268         return false;
4269
4270     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4271     m_cols.Erase(ret);
4272     OnColumnsCountChanged();
4273
4274     return true;
4275 }
4276
4277 bool wxDataViewCtrl::ClearColumns()
4278 {
4279     m_cols.Clear();
4280     m_colsBestWidths.clear();
4281     OnColumnsCountChanged();
4282     return true;
4283 }
4284
4285 void wxDataViewCtrl::UpdateColBestWidth(int idx)
4286 {
4287     m_colsBestWidths[idx] = 0;
4288
4289     if ( m_headerArea )
4290         m_headerArea->UpdateColumn(idx);
4291 }
4292
4293 void wxDataViewCtrl::UpdateColBestWidths()
4294 {
4295     m_colsBestWidths.clear();
4296     m_colsBestWidths.resize(m_cols.size());
4297
4298     if ( m_headerArea )
4299     {
4300         const unsigned cols = m_headerArea->GetColumnCount();
4301         for ( unsigned i = 0; i < cols; i++ )
4302             m_headerArea->UpdateColumn(i);
4303     }
4304 }
4305
4306 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4307 {
4308 #if 1
4309     unsigned int len = GetColumnCount();
4310     for ( unsigned int i = 0; i < len; i++ )
4311     {
4312         wxDataViewColumn * col = GetColumnAt(i);
4313         if (column==col)
4314             return i;
4315     }
4316
4317     return wxNOT_FOUND;
4318 #else
4319     // This returns the position in pixels which is not what we want.
4320     int ret = 0,
4321         dummy = 0;
4322     unsigned int len = GetColumnCount();
4323     for ( unsigned int i = 0; i < len; i++ )
4324     {
4325         wxDataViewColumn * col = GetColumnAt(i);
4326         if (col->IsHidden())
4327             continue;
4328         ret += col->GetWidth();
4329         if (column==col)
4330         {
4331             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4332             break;
4333         }
4334     }
4335     return ret;
4336 #endif
4337 }
4338
4339 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4340 {
4341     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4342                                             : GetColumn(m_sortingColumnIdx);
4343 }
4344
4345 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4346 {
4347     return GetItemByRow(m_clientArea->GetCurrentRow());
4348 }
4349
4350 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4351 {
4352     const int row = m_clientArea->GetRowByItem(item);
4353
4354     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4355     if ( static_cast<unsigned>(row) != oldCurrent )
4356     {
4357         m_clientArea->ChangeCurrentRow(row);
4358         m_clientArea->RefreshRow(oldCurrent);
4359         m_clientArea->RefreshRow(row);
4360     }
4361 }
4362
4363 int wxDataViewCtrl::GetSelectedItemsCount() const
4364 {
4365     return m_clientArea->GetSelections().size();
4366 }
4367
4368 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4369 {
4370     sel.Empty();
4371     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4372
4373     const size_t len = selections.size();
4374     for ( size_t i = 0; i < len; i++ )
4375     {
4376         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4377         if ( item.IsOk() )
4378         {
4379             sel.Add(item);
4380         }
4381         else
4382         {
4383             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4384         }
4385     }
4386
4387     return sel.size();
4388 }
4389
4390 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4391 {
4392     wxDataViewSelection selection(wxDataViewSelectionCmp);
4393
4394     wxDataViewItem last_parent;
4395
4396     int len = sel.GetCount();
4397     for( int i = 0; i < len; i ++ )
4398     {
4399         wxDataViewItem item = sel[i];
4400         wxDataViewItem parent = GetModel()->GetParent( item );
4401         if (parent)
4402         {
4403             if (parent != last_parent)
4404                 ExpandAncestors(item);
4405         }
4406
4407         last_parent = parent;
4408         int row = m_clientArea->GetRowByItem( item );
4409         if( row >= 0 )
4410             selection.Add( static_cast<unsigned int>(row) );
4411     }
4412
4413     m_clientArea->SetSelections( selection );
4414 }
4415
4416 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4417 {
4418     ExpandAncestors( item );
4419
4420     int row = m_clientArea->GetRowByItem( item );
4421     if( row >= 0 )
4422     {
4423         // Unselect all rows before select another in the single select mode
4424         if (m_clientArea->IsSingleSel())
4425             m_clientArea->SelectAllRows(false);
4426
4427         m_clientArea->SelectRow(row, true);
4428
4429         // Also set focus to the selected item
4430         m_clientArea->ChangeCurrentRow( row );
4431     }
4432 }
4433
4434 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4435 {
4436     int row = m_clientArea->GetRowByItem( item );
4437     if( row >= 0 )
4438         m_clientArea->SelectRow(row, false);
4439 }
4440
4441 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4442 {
4443     int row = m_clientArea->GetRowByItem( item );
4444     if( row >= 0 )
4445     {
4446         return m_clientArea->IsRowSelected(row);
4447     }
4448     return false;
4449 }
4450
4451 void wxDataViewCtrl::SelectAll()
4452 {
4453     m_clientArea->SelectAllRows(true);
4454 }
4455
4456 void wxDataViewCtrl::UnselectAll()
4457 {
4458     m_clientArea->SelectAllRows(false);
4459 }
4460
4461 void wxDataViewCtrl::EnsureVisible( int row, int column )
4462 {
4463     if( row < 0 )
4464         row = 0;
4465     if( row > (int) m_clientArea->GetRowCount() )
4466         row = m_clientArea->GetRowCount();
4467
4468     int first = m_clientArea->GetFirstVisibleRow();
4469     int last = m_clientArea->GetLastVisibleRow();
4470     if( row < first )
4471         m_clientArea->ScrollTo( row, column );
4472     else if( row > last )
4473         m_clientArea->ScrollTo( row - last + first, column );
4474     else
4475         m_clientArea->ScrollTo( first, column );
4476 }
4477
4478 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4479 {
4480     ExpandAncestors( item );
4481
4482     m_clientArea->RecalculateDisplay();
4483
4484     int row = m_clientArea->GetRowByItem(item);
4485     if( row >= 0 )
4486     {
4487         if( column == NULL )
4488             EnsureVisible(row, -1);
4489         else
4490             EnsureVisible( row, GetColumnIndex(column) );
4491     }
4492
4493 }
4494
4495 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4496                               wxDataViewColumn* &column ) const
4497 {
4498     m_clientArea->HitTest(point, item, column);
4499 }
4500
4501 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4502                                     const wxDataViewColumn* column ) const
4503 {
4504     return m_clientArea->GetItemRect(item, column);
4505 }
4506
4507 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4508 {
4509     return m_clientArea->GetItemByRow( row );
4510 }
4511
4512 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4513 {
4514     return m_clientArea->GetRowByItem( item );
4515 }
4516
4517 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4518 {
4519     ExpandAncestors( item );
4520
4521     int row = m_clientArea->GetRowByItem( item );
4522     if (row != -1)
4523         m_clientArea->Expand(row);
4524 }
4525
4526 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4527 {
4528     int row = m_clientArea->GetRowByItem( item );
4529     if (row != -1)
4530         m_clientArea->Collapse(row);
4531 }
4532
4533 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4534 {
4535     int row = m_clientArea->GetRowByItem( item );
4536     if (row != -1)
4537         return m_clientArea->IsExpanded(row);
4538     return false;
4539 }
4540
4541 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4542 {
4543     wxDataViewColumn* col = GetColumn( column );
4544     if (!col)
4545         return;
4546
4547     wxRect itemRect = GetItemRect(item, col);
4548     wxDataViewRenderer* renderer = col->GetRenderer();
4549     if (renderer->GetMode() == wxDATAVIEW_CELL_EDITABLE)
4550         renderer->StartEditing(item, itemRect);
4551 }
4552
4553 #endif // !wxUSE_GENERICDATAVIEWCTRL
4554
4555 #endif // wxUSE_DATAVIEWCTRL