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
  52 //-----------------------------------------------------------------------------
  53 // classes
  54 //-----------------------------------------------------------------------------
  55
  56 class wxDataViewCtrl;
  57
  58 static const int SCROLL_UNIT_X = 15;
  59
  60 // the cell padding on the left/right
  61 static const int PADDING_RIGHTLEFT = 3;
  62
  63 // the expander space margin
  64 static const int EXPANDER_MARGIN = 4;
  65
  66 #ifdef __WXMSW__
  67 static const int EXPANDER_OFFSET = 4;
  68 #else
  69 static const int EXPANDER_OFFSET = 1;
  70 #endif
  71
  72 // Below is the compare stuff.
  73 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  74 // fast search when needed
  75 static wxDataViewModel* g_model;
  76 static int g_column = -2;
  77 static bool g_asending = true;
  78
  79 //-----------------------------------------------------------------------------
  80 // wxDataViewHeaderWindow
  81 //-----------------------------------------------------------------------------
  82
  83 class wxDataViewHeaderWindow : public wxHeaderCtrl
  84 {
  85 public:
  86     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
  87         : wxHeaderCtrl(parent)
  88     {
  89     }
  90
  91     wxDataViewCtrl *GetOwner() const
  92         { return static_cast<wxDataViewCtrl *>(GetParent()); }
  93
  94 protected:
  95     // implement/override wxHeaderCtrl functions by forwarding them to the main
  96     // control
  97     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
  98     {
  99         return *(GetOwner()->GetColumn(idx));
 100     }
 101
 102     // FIXME: currently unused
 103     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 104     {
 105         wxDataViewCtrl * const owner = GetOwner();
 106
 107         int widthContents = owner->GetBestColumnWidth(idx);
 108         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 109         owner->OnColumnChange(idx);
 110
 111         return true;
 112     }
 113
 114 private:
 115     bool SendEvent(wxEventType type, unsigned int n)
 116     {
 117         wxDataViewCtrl * const owner = GetOwner();
 118         wxDataViewEvent event(type, owner->GetId());
 119
 120         event.SetEventObject(owner);
 121         event.SetColumn(n);
 122         event.SetDataViewColumn(owner->GetColumn(n));
 123         event.SetModel(owner->GetModel());
 124
 125         // for events created by wxDataViewHeaderWindow the
 126         // row / value fields are not valid
 127         return owner->GetEventHandler()->ProcessEvent(event);
 128     }
 129
 130     void OnClick(wxHeaderCtrlEvent& event)
 131     {
 132         const unsigned idx = event.GetColumn();
 133
 134         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 135             return;
 136
 137         // default handling for the column click is to sort by this column or
 138         // toggle its sort order
 139         wxDataViewCtrl * const owner = GetOwner();
 140         wxDataViewColumn * const col = owner->GetColumn(idx);
 141         if ( !col->IsSortable() )
 142         {
 143             // no default handling for non-sortable columns
 144             event.Skip();
 145             return;
 146         }
 147
 148         if ( col->IsSortKey() )
 149         {
 150             // already using this column for sorting, just change the order
 151             col->ToggleSortOrder();
 152         }
 153         else // not using this column for sorting yet
 154         {
 155             // first unset the old sort column if any
 156             int oldSortKey = owner->GetSortingColumnIndex();
 157             if ( oldSortKey != wxNOT_FOUND )
 158             {
 159                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 160                 owner->OnColumnChange(oldSortKey);
 161             }
 162
 163             owner->SetSortingColumnIndex(idx);
 164             col->SetAsSortKey();
 165         }
 166
 167         wxDataViewModel * const model = owner->GetModel();
 168         if ( model )
 169             model->Resort();
 170
 171         owner->OnColumnChange(idx);
 172     }
 173
 174     void OnRClick(wxHeaderCtrlEvent& event)
 175     {
 176         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 177                         event.GetColumn()) )
 178             event.Skip();
 179     }
 180
 181     void OnResize(wxHeaderCtrlEvent& event)
 182     {
 183         wxDataViewCtrl * const owner = GetOwner();
 184
 185         const unsigned col = event.GetColumn();
 186         owner->GetColumn(col)->SetWidth(event.GetWidth());
 187         GetOwner()->OnColumnChange(col);
 188     }
 189
 190     void OnEndReorder(wxHeaderCtrlEvent& event)
 191     {
 192         wxDataViewCtrl * const owner = GetOwner();
 193         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 194                         event.GetNewOrder());
 195     }
 196
 197     DECLARE_EVENT_TABLE()
 198     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 199 };
 200
 201 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 202     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 203     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 204
 205     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 206     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 207
 208     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 209 END_EVENT_TABLE()
 210
 211 //-----------------------------------------------------------------------------
 212 // wxDataViewRenameTimer
 213 //-----------------------------------------------------------------------------
 214
 215 class wxDataViewRenameTimer: public wxTimer
 216 {
 217 private:
 218     wxDataViewMainWindow *m_owner;
 219
 220 public:
 221     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 222     void Notify();
 223 };
 224
 225 //-----------------------------------------------------------------------------
 226 // wxDataViewTreeNode
 227 //-----------------------------------------------------------------------------
 228
 229 class wxDataViewTreeNode;
 230 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 231 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 232
 233 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 234                                            wxDataViewTreeNode ** node2);
 235 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 236
 237 class wxDataViewTreeNode
 238 {
 239 public:
 240     wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
 241     {
 242         m_parent = parent;
 243         if (!parent)
 244             m_open = true;
 245         else
 246             m_open = false;
 247         m_hasChildren = false;
 248         m_subTreeCount  = 0;
 249     }
 250
 251     ~wxDataViewTreeNode()
 252     {
 253     }
 254
 255     wxDataViewTreeNode * GetParent() const { return m_parent; }
 256     void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
 257     wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
 258     wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
 259
 260     void AddNode( wxDataViewTreeNode * node )
 261     {
 262         m_leaves.Add( node->GetItem().GetID() );
 263         if (g_column >= -1)
 264             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 265         m_nodes.Add( node );
 266         if (g_column >= -1)
 267             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 268     }
 269     void AddLeaf( void * leaf )
 270     {
 271         m_leaves.Add( leaf );
 272         if (g_column >= -1)
 273             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 274     }
 275
 276     wxDataViewItem & GetItem() { return m_item; }
 277     const wxDataViewItem & GetItem() const { return m_item; }
 278     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 279
 280     unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
 281     unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
 282     int GetIndentLevel() const
 283     {
 284         int ret = 0;
 285         const wxDataViewTreeNode * node = this;
 286         while( node->GetParent()->GetParent() != NULL )
 287         {
 288             node = node->GetParent();
 289             ret ++;
 290         }
 291         return ret;
 292     }
 293
 294     bool IsOpen() const
 295     {
 296         return m_open;
 297     }
 298
 299     void ToggleOpen()
 300     {
 301         int len = m_nodes.GetCount();
 302         int sum = 0;
 303         for ( int i = 0;i < len; i ++)
 304             sum += m_nodes[i]->GetSubTreeCount();
 305
 306         sum += m_leaves.GetCount();
 307         if (m_open)
 308         {
 309             ChangeSubTreeCount(-sum);
 310             m_open = !m_open;
 311         }
 312         else
 313         {
 314             m_open = !m_open;
 315             ChangeSubTreeCount(sum);
 316         }
 317     }
 318     bool HasChildren() const { return m_hasChildren; }
 319     void SetHasChildren( bool has ){ m_hasChildren = has; }
 320
 321     void SetSubTreeCount( int num ) { m_subTreeCount = num; }
 322     int GetSubTreeCount() const { return m_subTreeCount; }
 323     void ChangeSubTreeCount( int num )
 324     {
 325         if( !m_open )
 326             return;
 327         m_subTreeCount += num;
 328         if( m_parent )
 329             m_parent->ChangeSubTreeCount(num);
 330     }
 331
 332     void Resort()
 333     {
 334         if (g_column >= -1)
 335         {
 336             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 337             int len = m_nodes.GetCount();
 338             for (int i = 0; i < len; i ++)
 339                 m_nodes[i]->Resort();
 340             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 341         }
 342     }
 343
 344 private:
 345     wxDataViewTreeNode  *m_parent;
 346     wxDataViewTreeNodes  m_nodes;
 347     wxDataViewTreeLeaves m_leaves;
 348     wxDataViewItem       m_item;
 349     bool                 m_open;
 350     bool                 m_hasChildren;
 351     int                  m_subTreeCount;
 352 };
 353
 354 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 355                                            wxDataViewTreeNode ** node2)
 356 {
 357     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 358 }
 359
 360 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 361 {
 362     return g_model->Compare( *id1, *id2, g_column, g_asending );
 363 }
 364
 365
 366 //-----------------------------------------------------------------------------
 367 // wxDataViewMainWindow
 368 //-----------------------------------------------------------------------------
 369
 370 WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,
 371                                             WXDLLIMPEXP_ADV);
 372 WX_DECLARE_LIST(wxDataViewItem, ItemList);
 373 WX_DEFINE_LIST(ItemList)
 374
 375 class wxDataViewMainWindow: public wxWindow
 376 {
 377 public:
 378     wxDataViewMainWindow( wxDataViewCtrl *parent,
 379                             wxWindowID id,
 380                             const wxPoint &pos = wxDefaultPosition,
 381                             const wxSize &size = wxDefaultSize,
 382                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 383     virtual ~wxDataViewMainWindow();
 384
 385     bool IsVirtualList() const { return m_root == NULL; }
 386
 387     // notifications from wxDataViewModel
 388     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 389     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 390     bool ItemChanged( const wxDataViewItem &item );
 391     bool ValueChanged( const wxDataViewItem &item, unsigned int col );
 392     bool Cleared();
 393     void Resort()
 394     {
 395         if (!IsVirtualList())
 396         {
 397             SortPrepare();
 398             m_root->Resort();
 399         }
 400         UpdateDisplay();
 401     }
 402
 403     void SortPrepare()
 404     {
 405         g_model = GetOwner()->GetModel();
 406         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 407         if( !col )
 408         {
 409             if (g_model->HasDefaultCompare())
 410                 g_column = -1;
 411             else
 412                 g_column = -2;
 413
 414             g_asending = true;
 415             return;
 416         }
 417         g_column = col->GetModelColumn();
 418         g_asending = col->IsSortOrderAscending();
 419     }
 420
 421     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 422     wxDataViewCtrl *GetOwner() { return m_owner; }
 423     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 424
 425 #if wxUSE_DRAG_AND_DROP
 426     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 427 #endif // wxUSE_DRAG_AND_DROP
 428     void OnPaint( wxPaintEvent &event );
 429     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 430     void OnChar( wxKeyEvent &event );
 431     void OnMouse( wxMouseEvent &event );
 432     void OnSetFocus( wxFocusEvent &event );
 433     void OnKillFocus( wxFocusEvent &event );
 434
 435     void UpdateDisplay();
 436     void RecalculateDisplay();
 437     void OnInternalIdle();
 438
 439     void OnRenameTimer();
 440
 441     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 442     void ScrollTo( int rows, int column );
 443
 444     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 445     void ChangeCurrentRow( unsigned int row );
 446
 447     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 448     bool IsEmpty() { return GetRowCount() == 0; }
 449
 450     int GetCountPerPage() const;
 451     int GetEndOfLastCol() const;
 452     unsigned int GetFirstVisibleRow() const;
 453
 454     // I change this method to un const because in the tree view,
 455     // the displaying number of the tree are changing along with the
 456     // expanding/collapsing of the tree nodes
 457     unsigned int GetLastVisibleRow();
 458     unsigned int GetRowCount();
 459
 460     wxDataViewItem GetSelection() const;
 461     wxDataViewSelection GetSelections(){ return m_selection; }
 462     void SetSelections( const wxDataViewSelection & sel )
 463         { m_selection = sel; UpdateDisplay(); }
 464     void Select( const wxArrayInt& aSelections );
 465     void SelectAllRows( bool on );
 466     void SelectRow( unsigned int row, bool on );
 467     void SelectRows( unsigned int from, unsigned int to, bool on );
 468     void ReverseRowSelection( unsigned int row );
 469     bool IsRowSelected( unsigned int row );
 470     void SendSelectionChangedEvent( const wxDataViewItem& item);
 471
 472     void RefreshRow( unsigned int row );
 473     void RefreshRows( unsigned int from, unsigned int to );
 474     void RefreshRowsAfter( unsigned int firstRow );
 475
 476     // returns the colour to be used for drawing the rules
 477     wxColour GetRuleColour() const
 478     {
 479         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 480     }
 481
 482     wxRect GetLineRect( unsigned int row ) const;
 483
 484     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 485     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 486     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 487
 488     // Some useful functions for row and item mapping
 489     wxDataViewItem GetItemByRow( unsigned int row ) const;
 490     int GetRowByItem( const wxDataViewItem & item ) const;
 491
 492     // Methods for building the mapping tree
 493     void BuildTree( wxDataViewModel  * model );
 494     void DestroyTree();
 495     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 496     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 497
 498     void Expand( unsigned int row );
 499     void Collapse( unsigned int row );
 500     bool IsExpanded( unsigned int row ) const;
 501     bool HasChildren( unsigned int row ) const;
 502
 503 #if wxUSE_DRAG_AND_DROP
 504     bool EnableDragSource( const wxDataFormat &format );
 505     bool EnableDropTarget( const wxDataFormat &format );
 506
 507     void RemoveDropHint();
 508     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 509     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 510     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 511     void OnLeave();
 512 #endif // wxUSE_DRAG_AND_DROP
 513
 514 private:
 515     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 516     // We did not need this temporarily
 517     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 518
 519     int RecalculateCount();
 520
 521     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 522
 523     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 524
 525 private:
 526     wxDataViewCtrl             *m_owner;
 527     int                         m_lineHeight;
 528     bool                        m_dirty;
 529
 530     wxDataViewColumn           *m_currentCol;
 531     unsigned int                m_currentRow;
 532     wxDataViewSelection         m_selection;
 533
 534     wxDataViewRenameTimer      *m_renameTimer;
 535     bool                        m_lastOnSame;
 536
 537     bool                        m_hasFocus;
 538
 539 #if wxUSE_DRAG_AND_DROP
 540     int                         m_dragCount;
 541     wxPoint                     m_dragStart;
 542
 543     bool                        m_dragEnabled;
 544     wxDataFormat                m_dragFormat;
 545
 546     bool                        m_dropEnabled;
 547     wxDataFormat                m_dropFormat;
 548     bool                        m_dropHint;
 549     unsigned int                m_dropHintLine;
 550 #endif // wxUSE_DRAG_AND_DROP
 551
 552     // for double click logic
 553     unsigned int m_lineLastClicked,
 554         m_lineBeforeLastClicked,
 555         m_lineSelectSingleOnUp;
 556
 557     // the pen used to draw horiz/vertical rules
 558     wxPen m_penRule;
 559
 560     // the pen used to draw the expander and the lines
 561     wxPen m_penExpander;
 562
 563     // This is the tree structure of the model
 564     wxDataViewTreeNode * m_root;
 565     int m_count;
 566
 567     // This is the tree node under the cursor
 568     wxDataViewTreeNode * m_underMouse;
 569
 570 private:
 571     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 572     DECLARE_EVENT_TABLE()
 573 };
 574
 575 // ---------------------------------------------------------
 576 // wxGenericDataViewModelNotifier
 577 // ---------------------------------------------------------
 578
 579 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 580 {
 581 public:
 582     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 583         { m_mainWindow = mainWindow; }
 584
 585     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 586         { return m_mainWindow->ItemAdded( parent , item ); }
 587     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 588         { return m_mainWindow->ItemDeleted( parent, item ); }
 589     virtual bool ItemChanged( const wxDataViewItem & item )
 590         { return m_mainWindow->ItemChanged(item);  }
 591     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 592         { return m_mainWindow->ValueChanged( item, col ); }
 593     virtual bool Cleared()
 594         { return m_mainWindow->Cleared(); }
 595     virtual void Resort()
 596         { m_mainWindow->Resort(); }
 597
 598     wxDataViewMainWindow    *m_mainWindow;
 599 };
 600
 601 // ---------------------------------------------------------
 602 // wxDataViewRenderer
 603 // ---------------------------------------------------------
 604
 605 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 606
 607 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 608                                         wxDataViewCellMode mode,
 609                                         int align) :
 610     wxDataViewCustomRendererBase( varianttype, mode, align )
 611 {
 612     m_align = align;
 613     m_mode = mode;
 614     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 615     m_dc = NULL;
 616 }
 617
 618 wxDataViewRenderer::~wxDataViewRenderer()
 619 {
 620     delete m_dc;
 621 }
 622
 623 wxDC *wxDataViewRenderer::GetDC()
 624 {
 625     if (m_dc == NULL)
 626     {
 627         if (GetOwner() == NULL)
 628             return NULL;
 629         if (GetOwner()->GetOwner() == NULL)
 630             return NULL;
 631         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 632     }
 633
 634     return m_dc;
 635 }
 636
 637 void wxDataViewRenderer::SetAlignment( int align )
 638 {
 639     m_align=align;
 640 }
 641
 642 int wxDataViewRenderer::GetAlignment() const
 643 {
 644     return m_align;
 645 }
 646
 647 // ---------------------------------------------------------
 648 // wxDataViewCustomRenderer
 649 // ---------------------------------------------------------
 650
 651 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 652
 653 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 654                         wxDataViewCellMode mode, int align ) :
 655     wxDataViewRenderer( varianttype, mode, align )
 656 {
 657 }
 658
 659 // ---------------------------------------------------------
 660 // wxDataViewTextRenderer
 661 // ---------------------------------------------------------
 662
 663 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 664
 665 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 666                                                 wxDataViewCellMode mode, int align ) :
 667     wxDataViewRenderer( varianttype, mode, align )
 668 {
 669 }
 670
 671 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 672 {
 673     m_text = value.GetString();
 674
 675     return true;
 676 }
 677
 678 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 679 {
 680     return false;
 681 }
 682
 683 bool wxDataViewTextRenderer::HasEditorCtrl() const
 684 {
 685     return true;
 686 }
 687
 688 wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 689         wxRect labelRect, const wxVariant &value )
 690 {
 691     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 692                                        wxPoint(labelRect.x,labelRect.y),
 693                                        wxSize(labelRect.width,labelRect.height) );
 694
 695     // select the text in the control an place the cursor at the end
 696     ctrl->SetInsertionPointEnd();
 697     ctrl->SelectAll();
 698
 699     return ctrl;
 700 }
 701
 702 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )
 703 {
 704     wxTextCtrl *text = (wxTextCtrl*) editor;
 705     value = text->GetValue();
 706     return true;
 707 }
 708
 709 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 710 {
 711     RenderText(m_text, 0, rect, dc, state);
 712     return true;
 713 }
 714
 715 wxSize wxDataViewTextRenderer::GetSize() const
 716 {
 717     const wxDataViewCtrl *view = GetView();
 718     if (!m_text.empty())
 719         return view->wxWindowBase::GetTextExtent( m_text );
 720     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 721 }
 722
 723 // ---------------------------------------------------------
 724 // wxDataViewBitmapRenderer
 725 // ---------------------------------------------------------
 726
 727 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 728
 729 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 730                                                     wxDataViewCellMode mode, int align ) :
 731     wxDataViewRenderer( varianttype, mode, align )
 732 {
 733 }
 734
 735 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 736 {
 737     if (value.GetType() == wxT("wxBitmap"))
 738         m_bitmap << value;
 739     if (value.GetType() == wxT("wxIcon"))
 740         m_icon << value;
 741
 742     return true;
 743 }
 744
 745 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 746 {
 747     return false;
 748 }
 749
 750 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 751 {
 752     if (m_bitmap.Ok())
 753         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 754     else if (m_icon.Ok())
 755         dc->DrawIcon( m_icon, cell.x, cell.y );
 756
 757     return true;
 758 }
 759
 760 wxSize wxDataViewBitmapRenderer::GetSize() const
 761 {
 762     if (m_bitmap.Ok())
 763         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 764     else if (m_icon.Ok())
 765         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 766
 767     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 768 }
 769
 770 // ---------------------------------------------------------
 771 // wxDataViewToggleRenderer
 772 // ---------------------------------------------------------
 773
 774 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 775
 776 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 777                         wxDataViewCellMode mode, int align ) :
 778     wxDataViewRenderer( varianttype, mode, align )
 779 {
 780     m_toggle = false;
 781 }
 782
 783 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 784 {
 785     m_toggle = value.GetBool();
 786
 787     return true;
 788 }
 789
 790 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 791 {
 792     return false;
 793 }
 794
 795 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 796 {
 797     int flags = 0;
 798     if (m_toggle)
 799         flags |= wxCONTROL_CHECKED;
 800     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE)
 801         flags |= wxCONTROL_DISABLED;
 802
 803     // check boxes we draw must always have the same, standard size (if it's
 804     // bigger than the cell size the checkbox will be truncated because the
 805     // caller had set the clipping rectangle to prevent us from drawing outside
 806     // the cell)
 807     cell.SetSize(GetSize());
 808
 809     wxRendererNative::Get().DrawCheckBox(
 810             GetOwner()->GetOwner(),
 811             *dc,
 812             cell,
 813             flags );
 814
 815     return true;
 816 }
 817
 818 bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),
 819                                         wxDataViewModel *model,
 820                                         const wxDataViewItem & item, unsigned int col)
 821 {
 822     model->ChangeValue(!m_toggle, item, col);
 823     return true;
 824 }
 825
 826 wxSize wxDataViewToggleRenderer::GetSize() const
 827 {
 828     // the window parameter is not used by GetCheckBoxSize() so it's
 829     // safe to pass NULL
 830     return wxRendererNative::Get().GetCheckBoxSize(NULL);
 831 }
 832
 833 // ---------------------------------------------------------
 834 // wxDataViewProgressRenderer
 835 // ---------------------------------------------------------
 836
 837 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
 838
 839 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 840     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 841     wxDataViewRenderer( varianttype, mode, align )
 842 {
 843     m_label = label;
 844     m_value = 0;
 845 }
 846
 847 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 848 {
 849     m_value = (long) value;
 850
 851     if (m_value < 0) m_value = 0;
 852     if (m_value > 100) m_value = 100;
 853
 854     return true;
 855 }
 856
 857 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 858 {
 859     value = (long) m_value;
 860     return true;
 861 }
 862
 863 bool
 864 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
 865 {
 866     // deflate the rect to leave a small border between bars in adjacent rows
 867     wxRect bar = rect.Deflate(0, 1);
 868
 869     dc->SetBrush( *wxTRANSPARENT_BRUSH );
 870     dc->SetPen( *wxBLACK_PEN );
 871     dc->DrawRectangle( bar );
 872
 873     bar.width = (int)(bar.width * m_value / 100.);
 874     dc->SetPen( *wxTRANSPARENT_PEN );
 875
 876     const wxDataViewItemAttr& attr = GetAttr();
 877     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
 878                                   : *wxBLUE_BRUSH );
 879     dc->DrawRectangle( bar );
 880
 881     return true;
 882 }
 883
 884 wxSize wxDataViewProgressRenderer::GetSize() const
 885 {
 886     return wxSize(40,12);
 887 }
 888
 889 // ---------------------------------------------------------
 890 // wxDataViewDateRenderer
 891 // ---------------------------------------------------------
 892
 893 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
 894
 895 #if wxUSE_DATE_RENDERER_POPUP
 896
 897 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 898 {
 899 public:
 900     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
 901         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
 902         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
 903         m_item( item )
 904     {
 905         m_model = model;
 906         m_col = col;
 907         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
 908         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
 909         sizer->Add( m_cal, 1, wxGROW );
 910         SetSizer( sizer );
 911         sizer->Fit( this );
 912     }
 913
 914     void OnCalendar( wxCalendarEvent &event );
 915
 916     wxCalendarCtrl      *m_cal;
 917     wxDataViewModel *m_model;
 918     unsigned int               m_col;
 919     const wxDataViewItem &   m_item;
 920
 921 protected:
 922     virtual void OnDismiss()
 923     {
 924     }
 925
 926 private:
 927     DECLARE_EVENT_TABLE()
 928 };
 929
 930 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
 931     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
 932 END_EVENT_TABLE()
 933
 934 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
 935 {
 936     m_model->ChangeValue( event.GetDate(), m_item, m_col );
 937     DismissAndNotify();
 938 }
 939
 940 #endif // wxUSE_DATE_RENDERER_POPUP
 941
 942 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewRenderer)
 943
 944 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
 945                         wxDataViewCellMode mode, int align ) :
 946     wxDataViewRenderer( varianttype, mode, align )
 947 {
 948 }
 949
 950 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
 951 {
 952     m_date = value.GetDateTime();
 953
 954     return true;
 955 }
 956
 957 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
 958 {
 959     value = m_date;
 960     return true;
 961 }
 962
 963 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
 964 {
 965     wxString tmp = m_date.FormatDate();
 966     RenderText( tmp, 0, cell, dc, state );
 967     return true;
 968 }
 969
 970 wxSize wxDataViewDateRenderer::GetSize() const
 971 {
 972     const wxDataViewCtrl* view = GetView();
 973     wxString tmp = m_date.FormatDate();
 974     wxCoord x,y,d;
 975     view->GetTextExtent( tmp, &x, &y, &d );
 976     return wxSize(x,y+d);
 977 }
 978
 979 bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,
 980                                     const wxDataViewItem & item, unsigned int col )
 981 {
 982     wxVariant variant;
 983     model->GetValue( variant, item, col );
 984     wxDateTime value = variant.GetDateTime();
 985
 986 #if wxUSE_DATE_RENDERER_POPUP
 987     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
 988         GetOwner()->GetOwner()->GetParent(), &value, model, item, col);
 989     wxPoint pos = wxGetMousePosition();
 990     popup->Move( pos );
 991     popup->Layout();
 992     popup->Popup( popup->m_cal );
 993 #else // !wxUSE_DATE_RENDERER_POPUP
 994     wxMessageBox(value.Format());
 995 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
 996     return true;
 997 }
 998
 999 // ---------------------------------------------------------
1000 // wxDataViewIconTextRenderer
1001 // ---------------------------------------------------------
1002
1003 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1004
1005 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1006 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1007     wxDataViewRenderer( varianttype, mode, align )
1008 {
1009     SetMode(mode);
1010     SetAlignment(align);
1011 }
1012
1013 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1014 {
1015     m_value << value;
1016     return true;
1017 }
1018
1019 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1020 {
1021     return false;
1022 }
1023
1024 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1025 {
1026     int xoffset = 0;
1027
1028     const wxIcon& icon = m_value.GetIcon();
1029     if ( icon.IsOk() )
1030     {
1031         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1032         xoffset = icon.GetWidth()+4;
1033     }
1034
1035     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1036
1037     return true;
1038 }
1039
1040 wxSize wxDataViewIconTextRenderer::GetSize() const
1041 {
1042     const wxDataViewCtrl *view = GetView();
1043     if (!m_value.GetText().empty())
1044     {
1045         int x,y;
1046         view->GetTextExtent( m_value.GetText(), &x, &y );
1047
1048         if (m_value.GetIcon().IsOk())
1049             x += m_value.GetIcon().GetWidth() + 4;
1050         return wxSize( x, y );
1051     }
1052     return wxSize(80,20);
1053 }
1054
1055 wxControl* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1056 {
1057     wxDataViewIconText iconText;
1058     iconText << value;
1059
1060     wxString text = iconText.GetText();
1061
1062     // adjust the label rect to take the width of the icon into account
1063     if (iconText.GetIcon().IsOk())
1064     {
1065         int w = iconText.GetIcon().GetWidth() + 4;
1066         labelRect.x += w;
1067         labelRect.width -= w;
1068     }
1069
1070     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1071                                        wxPoint(labelRect.x,labelRect.y),
1072                                        wxSize(labelRect.width,labelRect.height) );
1073
1074     // select the text in the control an place the cursor at the end
1075     ctrl->SetInsertionPointEnd();
1076     ctrl->SelectAll();
1077
1078     return ctrl;
1079 }
1080
1081 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant& value )
1082 {
1083     wxTextCtrl *text = (wxTextCtrl*) editor;
1084
1085     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1086     value << iconText;
1087     return true;
1088 }
1089
1090 //-----------------------------------------------------------------------------
1091 // wxDataViewDropTarget
1092 //-----------------------------------------------------------------------------
1093
1094 #if wxUSE_DRAG_AND_DROP
1095
1096 class wxBitmapCanvas: public wxWindow
1097 {
1098 public:
1099     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1100     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1101     {
1102         m_bitmap = bitmap;
1103         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1104     }
1105
1106     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1107     {
1108         wxPaintDC dc(this);
1109         dc.DrawBitmap( m_bitmap, 0, 0);
1110     }
1111
1112     wxBitmap m_bitmap;
1113 };
1114
1115 class wxDataViewDropSource: public wxDropSource
1116 {
1117 public:
1118     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1119         wxDropSource( win )
1120     {
1121         m_win = win;
1122         m_row = row;
1123         m_hint = NULL;
1124     }
1125
1126     ~wxDataViewDropSource()
1127     {
1128         delete m_hint;
1129     }
1130
1131     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1132     {
1133         wxPoint pos = wxGetMousePosition();
1134
1135         if (!m_hint)
1136         {
1137             int liney = m_win->GetLineStart( m_row );
1138             int linex = 0;
1139             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1140             m_win->ClientToScreen( &linex, &liney );
1141             m_dist_x = pos.x - linex;
1142             m_dist_y = pos.y - liney;
1143
1144             int indent = 0;
1145             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1146             m_dist_x -= indent;
1147             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1148                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1149                                         ib.GetSize(),
1150                                         wxFRAME_TOOL_WINDOW |
1151                                         wxFRAME_FLOAT_ON_PARENT |
1152                                         wxFRAME_NO_TASKBAR |
1153                                         wxNO_BORDER );
1154             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1155             m_hint->Show();
1156         }
1157         else
1158         {
1159             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1160             m_hint->SetTransparent( 128 );
1161         }
1162
1163         return false;
1164     }
1165
1166     wxDataViewMainWindow   *m_win;
1167     unsigned int            m_row;
1168     wxFrame                *m_hint;
1169     int m_dist_x,m_dist_y;
1170 };
1171
1172
1173 class wxDataViewDropTarget: public wxDropTarget
1174 {
1175 public:
1176     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1177         wxDropTarget( obj )
1178     {
1179         m_win = win;
1180     }
1181
1182     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1183     {
1184         wxDataFormat format = GetMatchingPair();
1185         if (format == wxDF_INVALID)
1186             return wxDragNone;
1187         return m_win->OnDragOver( format, x, y, def);
1188     }
1189
1190     virtual bool OnDrop( wxCoord x, wxCoord y )
1191     {
1192         wxDataFormat format = GetMatchingPair();
1193         if (format == wxDF_INVALID)
1194             return false;
1195         return m_win->OnDrop( format, x, y );
1196     }
1197
1198     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1199     {
1200         wxDataFormat format = GetMatchingPair();
1201         if (format == wxDF_INVALID)
1202             return wxDragNone;
1203         if (!GetData())
1204             return wxDragNone;
1205         return m_win->OnData( format, x, y, def );
1206     }
1207
1208     virtual void OnLeave()
1209         { m_win->OnLeave(); }
1210
1211     wxDataViewMainWindow   *m_win;
1212 };
1213
1214 #endif // wxUSE_DRAG_AND_DROP
1215
1216 //-----------------------------------------------------------------------------
1217 // wxDataViewRenameTimer
1218 //-----------------------------------------------------------------------------
1219
1220 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1221 {
1222     m_owner = owner;
1223 }
1224
1225 void wxDataViewRenameTimer::Notify()
1226 {
1227     m_owner->OnRenameTimer();
1228 }
1229
1230 //-----------------------------------------------------------------------------
1231 // wxDataViewMainWindow
1232 //-----------------------------------------------------------------------------
1233
1234 // The tree building helper, declared firstly
1235 static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item,
1236                              wxDataViewTreeNode * node);
1237
1238 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1239 {
1240     if (row1 > row2) return 1;
1241     if (row1 == row2) return 0;
1242     return -1;
1243 }
1244
1245 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1246
1247 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1248     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1249     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1250     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1251     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1252     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1253 END_EVENT_TABLE()
1254
1255 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1256     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1257     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1258     m_selection( wxDataViewSelectionCmp )
1259
1260 {
1261     SetOwner( parent );
1262
1263     m_lastOnSame = false;
1264     m_renameTimer = new wxDataViewRenameTimer( this );
1265
1266     // TODO: user better initial values/nothing selected
1267     m_currentCol = NULL;
1268     m_currentRow = 0;
1269
1270     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1271
1272 #if wxUSE_DRAG_AND_DROP
1273     m_dragCount = 0;
1274     m_dragStart = wxPoint(0,0);
1275
1276     m_dragEnabled = false;
1277     m_dropEnabled = false;
1278     m_dropHint = false;
1279     m_dropHintLine = (unsigned int) -1;
1280 #endif // wxUSE_DRAG_AND_DROP
1281
1282     m_lineLastClicked = (unsigned int) -1;
1283     m_lineBeforeLastClicked = (unsigned int) -1;
1284     m_lineSelectSingleOnUp = (unsigned int) -1;
1285
1286     m_hasFocus = false;
1287
1288     SetBackgroundColour( *wxWHITE );
1289
1290     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1291
1292     m_penRule = wxPen(GetRuleColour());
1293
1294     // compose a pen whichcan draw black lines
1295     // TODO: maybe there is something system colour to use
1296     m_penExpander = wxPen(wxColour(0,0,0));
1297
1298     m_root = new wxDataViewTreeNode( NULL );
1299     m_root->SetHasChildren(true);
1300
1301     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1302     m_count = -1;
1303     m_underMouse = NULL;
1304     UpdateDisplay();
1305 }
1306
1307 wxDataViewMainWindow::~wxDataViewMainWindow()
1308 {
1309     DestroyTree();
1310     delete m_renameTimer;
1311 }
1312
1313
1314 #if wxUSE_DRAG_AND_DROP
1315 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1316 {
1317     m_dragFormat = format;
1318     m_dragEnabled = format != wxDF_INVALID;
1319
1320     return true;
1321 }
1322
1323 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1324 {
1325     m_dropFormat = format;
1326     m_dropEnabled = format != wxDF_INVALID;
1327
1328     if (m_dropEnabled)
1329         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1330
1331     return true;
1332 }
1333
1334 void wxDataViewMainWindow::RemoveDropHint()
1335 {
1336     if (m_dropHint)
1337     {
1338             m_dropHint = false;
1339             RefreshRow( m_dropHintLine );
1340             m_dropHintLine = (unsigned int) -1;
1341     }
1342 }
1343
1344 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1345                                                wxCoord y, wxDragResult def )
1346 {
1347     int xx = x;
1348     int yy = y;
1349     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1350     unsigned int row = GetLineAt( yy );
1351
1352     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1353     {
1354         RemoveDropHint();
1355         return wxDragNone;
1356     }
1357
1358     wxDataViewItem item = GetItemByRow( row );
1359
1360     wxDataViewModel *model = GetOwner()->GetModel();
1361
1362     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1363     event.SetEventObject( m_owner );
1364     event.SetItem( item );
1365     event.SetModel( model );
1366     event.SetDataFormat( format );
1367     if (!m_owner->HandleWindowEvent( event ))
1368     {
1369         RemoveDropHint();
1370         return wxDragNone;
1371     }
1372
1373     if (!event.IsAllowed())
1374     {
1375         RemoveDropHint();
1376         return wxDragNone;
1377     }
1378
1379
1380     if (m_dropHint && (row != m_dropHintLine))
1381         RefreshRow( m_dropHintLine );
1382     m_dropHint = true;
1383     m_dropHintLine = row;
1384     RefreshRow( row );
1385
1386     return def;
1387 }
1388
1389 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1390 {
1391     RemoveDropHint();
1392
1393     int xx = x;
1394     int yy = y;
1395     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1396     unsigned int row = GetLineAt( yy );
1397
1398     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1399         return false;
1400
1401     wxDataViewItem item = GetItemByRow( row );
1402
1403     wxDataViewModel *model = GetOwner()->GetModel();
1404
1405     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1406     event.SetEventObject( m_owner );
1407     event.SetItem( item );
1408     event.SetModel( model );
1409     event.SetDataFormat( format );
1410     if (!m_owner->HandleWindowEvent( event ))
1411         return false;
1412
1413     if (!event.IsAllowed())
1414         return false;
1415
1416     return true;
1417 }
1418
1419 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1420                                            wxDragResult def )
1421 {
1422     int xx = x;
1423     int yy = y;
1424     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1425     unsigned int row = GetLineAt( yy );
1426
1427     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1428         return wxDragNone;
1429
1430     wxDataViewItem item = GetItemByRow( row );
1431
1432     wxDataViewModel *model = GetOwner()->GetModel();
1433
1434     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1435
1436     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1437     event.SetEventObject( m_owner );
1438     event.SetItem( item );
1439     event.SetModel( model );
1440     event.SetDataFormat( format );
1441     event.SetDataSize( obj->GetSize() );
1442     event.SetDataBuffer( obj->GetData() );
1443     if (!m_owner->HandleWindowEvent( event ))
1444         return wxDragNone;
1445
1446     if (!event.IsAllowed())
1447         return wxDragNone;
1448
1449     return def;
1450 }
1451
1452 void wxDataViewMainWindow::OnLeave()
1453 {
1454     RemoveDropHint();
1455 }
1456
1457 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1458 {
1459     int height = GetLineHeight( row );
1460     int width = 0;
1461     unsigned int cols = GetOwner()->GetColumnCount();
1462     unsigned int col;
1463     for (col = 0; col < cols; col++)
1464     {
1465         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1466         if (column->IsHidden())
1467             continue;      // skip it!
1468         width += column->GetWidth();
1469     }
1470
1471     indent = 0;
1472     if (!IsVirtualList())
1473     {
1474         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1475         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1476         indent = indent + m_lineHeight;
1477             // try to use the m_lineHeight as the expander space
1478
1479         if(!node->HasChildren())
1480             delete node;
1481     }
1482     width -= indent;
1483
1484     wxBitmap bitmap( width, height );
1485     wxMemoryDC dc( bitmap );
1486     dc.SetFont( GetFont() );
1487     dc.SetPen( *wxBLACK_PEN );
1488     dc.SetBrush( *wxWHITE_BRUSH );
1489     dc.DrawRectangle( 0,0,width,height );
1490
1491     wxDataViewModel *model = m_owner->GetModel();
1492
1493     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1494     if (!expander)
1495     {
1496         // TODO-RTL: last column for RTL support
1497         expander = GetOwner()->GetColumnAt( 0 );
1498         GetOwner()->SetExpanderColumn(expander);
1499     }
1500
1501
1502     int x = 0;
1503     for (col = 0; col < cols; col++)
1504     {
1505         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1506         wxDataViewRenderer *cell = column->GetRenderer();
1507
1508         if (column->IsHidden())
1509             continue;       // skip it!
1510
1511         width = column->GetWidth();
1512
1513         if (column == expander)
1514             width -= indent;
1515
1516         wxVariant value;
1517         wxDataViewItem item = GetItemByRow( row );
1518         model->GetValue( value, item, column->GetModelColumn());
1519         cell->SetValue( value );
1520
1521         wxDataViewItemAttr attr;
1522         model->GetAttr(item, column->GetModelColumn(), attr);
1523         cell->SetAttr(attr);
1524
1525         wxRect item_rect(x, 0, width, height);
1526         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1527
1528         // dc.SetClippingRegion( item_rect );
1529         cell->WXCallRender(item_rect, &dc, 0);
1530         // dc.DestroyClippingRegion();
1531
1532         x += width;
1533     }
1534
1535     return bitmap;
1536 }
1537
1538 #endif // wxUSE_DRAG_AND_DROP
1539
1540
1541 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1542 {
1543     wxDataViewModel *model = GetOwner()->GetModel();
1544     wxAutoBufferedPaintDC dc( this );
1545
1546 #ifdef __WXMSW__
1547     dc.SetBrush(GetOwner()->GetBackgroundColour());
1548     dc.SetPen( *wxTRANSPARENT_PEN );
1549     dc.DrawRectangle(GetClientSize());
1550 #endif
1551
1552     // prepare the DC
1553     GetOwner()->PrepareDC( dc );
1554     dc.SetFont( GetFont() );
1555
1556     wxRect update = GetUpdateRegion().GetBox();
1557     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1558
1559     // compute which items needs to be redrawn
1560     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1561     unsigned int item_count =
1562         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1563             (int)(GetRowCount( ) - item_start));
1564     unsigned int item_last = item_start + item_count;
1565     // Get the parent of DataViewCtrl
1566     wxWindow *parent = GetParent()->GetParent();
1567     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1568     cache_event.SetEventObject(GetParent());
1569     cache_event.SetCache(item_start, item_last - 1);
1570     parent->ProcessWindowEvent(cache_event);
1571
1572     // compute which columns needs to be redrawn
1573     unsigned int cols = GetOwner()->GetColumnCount();
1574     if ( !cols )
1575     {
1576         // we assume that we have at least one column below and painting an
1577         // empty control is unnecessary anyhow
1578         return;
1579     }
1580
1581     unsigned int col_start = 0;
1582     unsigned int x_start;
1583     for (x_start = 0; col_start < cols; col_start++)
1584     {
1585         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1586         if (col->IsHidden())
1587             continue;      // skip it!
1588
1589         unsigned int w = col->GetWidth();
1590         if (x_start+w >= (unsigned int)update.x)
1591             break;
1592
1593         x_start += w;
1594     }
1595
1596     unsigned int col_last = col_start;
1597     unsigned int x_last = x_start;
1598     for (; col_last < cols; col_last++)
1599     {
1600         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1601         if (col->IsHidden())
1602             continue;      // skip it!
1603
1604         if (x_last > (unsigned int)update.GetRight())
1605             break;
1606
1607         x_last += col->GetWidth();
1608     }
1609
1610     // Draw horizontal rules if required
1611     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1612     {
1613         dc.SetPen(m_penRule);
1614         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1615
1616         for (unsigned int i = item_start; i <= item_last; i++)
1617         {
1618             int y = GetLineStart( i );
1619             dc.DrawLine(x_start, y, x_last, y);
1620         }
1621     }
1622
1623     // Draw vertical rules if required
1624     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1625     {
1626         dc.SetPen(m_penRule);
1627         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1628
1629         int x = x_start;
1630         for (unsigned int i = col_start; i < col_last; i++)
1631         {
1632             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1633             if (col->IsHidden())
1634                 continue;       // skip it
1635
1636             dc.DrawLine(x, GetLineStart( item_start ),
1637                         x, GetLineStart( item_last ) );
1638
1639             x += col->GetWidth();
1640         }
1641
1642         // Draw last vertical rule
1643         dc.DrawLine(x, GetLineStart( item_start ),
1644                     x, GetLineStart( item_last ) );
1645     }
1646
1647     // redraw the background for the items which are selected/current
1648     for (unsigned int item = item_start; item < item_last; item++)
1649     {
1650         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1651         if (selected || item == m_currentRow)
1652         {
1653             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1654             if (item == m_currentRow)
1655                 flags |= wxCONTROL_CURRENT;
1656             if (m_hasFocus)
1657                 flags |= wxCONTROL_FOCUSED;
1658
1659             wxRect rect( x_start, GetLineStart( item ),
1660                          x_last - x_start, GetLineHeight( item ) );
1661             wxRendererNative::Get().DrawItemSelectionRect
1662                                 (
1663                                     this,
1664                                     dc,
1665                                     rect,
1666                                     flags
1667                                 );
1668         }
1669     }
1670
1671 #if wxUSE_DRAG_AND_DROP
1672     if (m_dropHint)
1673     {
1674         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1675                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1676         dc.SetPen( *wxBLACK_PEN );
1677         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1678         dc.DrawRectangle( rect );
1679     }
1680 #endif // wxUSE_DRAG_AND_DROP
1681
1682     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1683     if (!expander)
1684     {
1685         // TODO-RTL: last column for RTL support
1686         expander = GetOwner()->GetColumnAt( 0 );
1687         GetOwner()->SetExpanderColumn(expander);
1688     }
1689
1690     // redraw all cells for all rows which must be repainted and all columns
1691     wxRect cell_rect;
1692     cell_rect.x = x_start;
1693     for (unsigned int i = col_start; i < col_last; i++)
1694     {
1695         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1696         wxDataViewRenderer *cell = col->GetRenderer();
1697         cell_rect.width = col->GetWidth();
1698
1699         if (col->IsHidden())
1700             continue;       // skip it!
1701
1702         for (unsigned int item = item_start; item < item_last; item++)
1703         {
1704             // get the cell value and set it into the renderer
1705             wxVariant value;
1706             wxDataViewTreeNode *node = NULL;
1707             wxDataViewItem dataitem;
1708
1709             if (!IsVirtualList())
1710             {
1711                 node = GetTreeNodeByRow(item);
1712                 if( node == NULL )
1713                     continue;
1714
1715                 dataitem = node->GetItem();
1716
1717                 if ((i > 0) && model->IsContainer(dataitem) &&
1718                     !model->HasContainerColumns(dataitem))
1719                     continue;
1720             }
1721             else
1722             {
1723                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1724             }
1725
1726             model->GetValue( value, dataitem, col->GetModelColumn());
1727             cell->SetValue( value );
1728
1729             wxDataViewItemAttr attr;
1730             model->GetAttr(dataitem, col->GetModelColumn(), attr);
1731             cell->SetAttr(attr);
1732
1733             // update cell_rect
1734             cell_rect.y = GetLineStart( item );
1735             cell_rect.height = GetLineHeight( item );
1736
1737             // Draw the expander here.
1738             int indent = 0;
1739             if ((!IsVirtualList()) && (col == expander))
1740             {
1741                 indent = node->GetIndentLevel();
1742
1743                 // Calculate the indent first
1744                 indent = cell_rect.x + GetOwner()->GetIndent() * indent;
1745
1746                 int expander_width = m_lineHeight - 2*EXPANDER_MARGIN;
1747
1748                 // change the cell_rect.x to the appropriate pos
1749                 int expander_x = indent + EXPANDER_MARGIN;
1750                 int expander_y = cell_rect.y + EXPANDER_MARGIN + (GetLineHeight(item) / 2)
1751                                  - (expander_width/2) - EXPANDER_OFFSET;
1752
1753                 indent = indent + m_lineHeight;
1754                     // try to use the m_lineHeight as the expander space
1755
1756                 dc.SetPen( m_penExpander );
1757                 dc.SetBrush( wxNullBrush );
1758                 if( node->HasChildren() )
1759                 {
1760                     wxRect rect( expander_x , expander_y, expander_width, expander_width);
1761                     int flag = 0;
1762                     if (m_underMouse == node)
1763                     {
1764                         flag |= wxCONTROL_CURRENT;
1765                     }
1766                     if( node->IsOpen() )
1767                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect,
1768                                                                     flag|wxCONTROL_EXPANDED );
1769                     else
1770                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1771                 }
1772
1773                 // force the expander column to left-center align
1774                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1775             }
1776             if (node && !node->HasChildren())
1777             {
1778                 // Yes, if the node does not have any child, it must be a leaf which
1779                 // mean that it is a temporarily created by GetTreeNodeByRow
1780                 wxDELETE(node);
1781             }
1782
1783             wxRect item_rect = cell_rect;
1784             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1785
1786             // account for the tree indent (harmless if we're not indented)
1787             item_rect.x += indent;
1788             item_rect.width -= indent;
1789
1790             int state = 0;
1791             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1792                 state |= wxDATAVIEW_CELL_SELECTED;
1793
1794             // TODO: it would be much more efficient to create a clipping
1795             //       region for the entire column being rendered (in the OnPaint
1796             //       of wxDataViewMainWindow) instead of a single clip region for
1797             //       each cell. However it would mean that each renderer should
1798             //       respect the given wxRect's top & bottom coords, eventually
1799             //       violating only the left & right coords - however the user can
1800             //       make its own renderer and thus we cannot be sure of that.
1801             wxDCClipper clip(dc, item_rect);
1802
1803             cell->WXCallRender(item_rect, &dc, state);
1804         }
1805
1806         cell_rect.x += cell_rect.width;
1807     }
1808 }
1809
1810 void wxDataViewMainWindow::OnRenameTimer()
1811 {
1812     // We have to call this here because changes may just have
1813     // been made and no screen update taken place.
1814     if ( m_dirty )
1815     {
1816         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1817         //       (needs to be tested!)
1818         wxSafeYield();
1819     }
1820
1821     wxDataViewItem item = GetItemByRow( m_currentRow );
1822
1823     wxRect labelRect = GetItemRect(item, m_currentCol);
1824
1825     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1826 }
1827
1828 //-----------------------------------------------------------------------------
1829 // Helper class for do operation on the tree node
1830 //-----------------------------------------------------------------------------
1831 class DoJob
1832 {
1833 public:
1834     DoJob() { }
1835     virtual ~DoJob() { }
1836
1837     // The return value control how the tree-walker tranverse the tree
1838     // 0: Job done, stop tranverse and return
1839     // 1: Ignore the current node's subtree and continue
1840     // 2: Job not done, continue
1841     enum  { OK = 0 , IGR = 1, CONT = 2 };
1842     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1843     virtual int operator() ( void * n ) = 0;
1844 };
1845
1846 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1847 {
1848     if( node==NULL )
1849         return false;
1850
1851     switch( func( node ) )
1852     {
1853         case DoJob::OK :
1854             return true;
1855         case DoJob::IGR:
1856             return false;
1857         case DoJob::CONT:
1858         default:
1859             ;
1860     }
1861
1862     wxDataViewTreeNodes nodes = node->GetNodes();
1863     wxDataViewTreeLeaves leaves = node->GetChildren();
1864
1865     int len_nodes = nodes.GetCount();
1866     int len = leaves.GetCount();
1867     int i = 0, nodes_i = 0;
1868
1869     for(; i < len; i ++ )
1870     {
1871         void * n = leaves[i];
1872         if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
1873         {
1874             wxDataViewTreeNode * nd = nodes[nodes_i];
1875             nodes_i++;
1876
1877             if( Walker( nd , func ) )
1878                 return true;
1879
1880         }
1881         else
1882             switch( func( n ) )
1883             {
1884                 case DoJob::OK :
1885                     return true;
1886                 case DoJob::IGR:
1887                     continue;
1888                 case DoJob::CONT:
1889                 default:
1890                 ;
1891             }
1892     }
1893     return false;
1894 }
1895
1896 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
1897 {
1898     if (IsVirtualList())
1899     {
1900         wxDataViewVirtualListModel *list_model =
1901             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1902         m_count = list_model->GetCount();
1903         UpdateDisplay();
1904         return true;
1905     }
1906
1907     SortPrepare();
1908
1909     wxDataViewTreeNode * node;
1910     node = FindNode(parent);
1911
1912     if( node == NULL )
1913         return false;
1914
1915     node->SetHasChildren( true );
1916
1917     if( g_model->IsContainer( item ) )
1918     {
1919         wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
1920         newnode->SetItem(item);
1921         newnode->SetHasChildren( true );
1922         node->AddNode( newnode);
1923     }
1924     else
1925         node->AddLeaf( item.GetID() );
1926
1927     node->ChangeSubTreeCount(1);
1928
1929     m_count = -1;
1930     UpdateDisplay();
1931
1932     return true;
1933 }
1934
1935 static void DestroyTreeHelper( wxDataViewTreeNode * node);
1936
1937 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
1938                                        const wxDataViewItem& item)
1939 {
1940     if (IsVirtualList())
1941     {
1942         wxDataViewVirtualListModel *list_model =
1943             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1944         m_count = list_model->GetCount();
1945
1946         if( m_currentRow > GetRowCount() )
1947             m_currentRow = m_count - 1;
1948
1949         // TODO: why empty the entire selection?
1950         m_selection.Empty();
1951
1952         UpdateDisplay();
1953
1954         return true;
1955     }
1956
1957     wxDataViewTreeNode * node = FindNode(parent);
1958
1959     wxCHECK_MSG( node != NULL, false, "item not found" );
1960     wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND,
1961                  false, "item not found" );
1962
1963     int sub = -1;
1964     node->GetChildren().Remove( item.GetID() );
1965     // Manipolate selection
1966     if( m_selection.GetCount() > 1 )
1967     {
1968         m_selection.Empty();
1969     }
1970     bool isContainer = false;
1971     wxDataViewTreeNodes nds = node->GetNodes();
1972     for (size_t i = 0; i < nds.GetCount(); i ++)
1973     {
1974         if (nds[i]->GetItem() == item)
1975         {
1976             isContainer = true;
1977             break;
1978         }
1979     }
1980     if( isContainer )
1981     {
1982         wxDataViewTreeNode * n = NULL;
1983         wxDataViewTreeNodes nodes = node->GetNodes();
1984         int len = nodes.GetCount();
1985         for( int i = 0; i < len; i ++)
1986         {
1987             if( nodes[i]->GetItem() == item )
1988             {
1989                 n = nodes[i];
1990                 break;
1991             }
1992         }
1993
1994         wxCHECK_MSG( n != NULL, false, "item not found" );
1995
1996         node->GetNodes().Remove( n );
1997         sub -= n->GetSubTreeCount();
1998         ::DestroyTreeHelper(n);
1999     }
2000     // Make the row number invalid and get a new valid one when user call GetRowCount
2001     m_count = -1;
2002     node->ChangeSubTreeCount(sub);
2003
2004     // Change the current row to the last row if the current exceed the max row number
2005     if( m_currentRow > GetRowCount() )
2006         m_currentRow = m_count - 1;
2007
2008     UpdateDisplay();
2009
2010     return true;
2011 }
2012
2013 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2014 {
2015     SortPrepare();
2016     g_model->Resort();
2017
2018     // Send event
2019     wxWindow *parent = GetParent();
2020     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2021     le.SetEventObject(parent);
2022     le.SetModel(GetOwner()->GetModel());
2023     le.SetItem(item);
2024     parent->GetEventHandler()->ProcessEvent(le);
2025
2026     return true;
2027 }
2028
2029 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )
2030 {
2031     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2032 /*#define MAX_VIRTUAL_WIDTH       100000
2033
2034     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2035     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2036     Refresh( true, &rect );
2037
2038     return true;
2039 */
2040     SortPrepare();
2041     g_model->Resort();
2042
2043     // Send event
2044     wxWindow *parent = GetParent();
2045     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2046     le.SetEventObject(parent);
2047     le.SetModel(GetOwner()->GetModel());
2048     le.SetItem(item);
2049     le.SetColumn(col);
2050     le.SetDataViewColumn(GetOwner()->GetColumn(col));
2051     parent->GetEventHandler()->ProcessEvent(le);
2052
2053     return true;
2054 }
2055
2056 bool wxDataViewMainWindow::Cleared()
2057 {
2058     DestroyTree();
2059
2060     SortPrepare();
2061     BuildTree( GetOwner()->GetModel() );
2062
2063     UpdateDisplay();
2064
2065     return true;
2066 }
2067
2068 void wxDataViewMainWindow::UpdateDisplay()
2069 {
2070     m_dirty = true;
2071     m_underMouse = NULL;
2072 }
2073
2074 void wxDataViewMainWindow::OnInternalIdle()
2075 {
2076     wxWindow::OnInternalIdle();
2077
2078     if (m_dirty)
2079     {
2080         RecalculateDisplay();
2081         m_dirty = false;
2082     }
2083 }
2084
2085 void wxDataViewMainWindow::RecalculateDisplay()
2086 {
2087     wxDataViewModel *model = GetOwner()->GetModel();
2088     if (!model)
2089     {
2090         Refresh();
2091         return;
2092     }
2093
2094     int width = GetEndOfLastCol();
2095     int height = GetLineStart( GetRowCount() );
2096
2097     SetVirtualSize( width, height );
2098     GetOwner()->SetScrollRate( 10, m_lineHeight );
2099
2100     Refresh();
2101 }
2102
2103 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2104 {
2105     wxWindow::ScrollWindow( dx, dy, rect );
2106
2107     if (GetOwner()->m_headerArea)
2108         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2109 }
2110
2111 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2112 {
2113     int x, y;
2114     m_owner->GetScrollPixelsPerUnit( &x, &y );
2115     int sy = GetLineStart( rows )/y;
2116     int sx = 0;
2117     if( column != -1 )
2118     {
2119         wxRect rect = GetClientRect();
2120         int colnum = 0;
2121         int x_start, w = 0;
2122         int xx, yy, xe;
2123         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2124         for (x_start = 0; colnum < column; colnum++)
2125         {
2126             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2127             if (col->IsHidden())
2128                 continue;      // skip it!
2129
2130             w = col->GetWidth();
2131             x_start += w;
2132         }
2133
2134         int x_end = x_start + w;
2135         xe = xx + rect.width;
2136         if( x_end > xe )
2137         {
2138             sx = ( xx + x_end - xe )/x;
2139         }
2140         if( x_start < xx )
2141         {
2142             sx = x_start/x;
2143         }
2144     }
2145     m_owner->Scroll( sx, sy );
2146 }
2147
2148 int wxDataViewMainWindow::GetCountPerPage() const
2149 {
2150     wxSize size = GetClientSize();
2151     return size.y / m_lineHeight;
2152 }
2153
2154 int wxDataViewMainWindow::GetEndOfLastCol() const
2155 {
2156     int width = 0;
2157     unsigned int i;
2158     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2159     {
2160         const wxDataViewColumn *c =
2161             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2162
2163         if (!c->IsHidden())
2164             width += c->GetWidth();
2165     }
2166     return width;
2167 }
2168
2169 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2170 {
2171     int x = 0;
2172     int y = 0;
2173     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2174
2175     return GetLineAt( y );
2176 }
2177
2178 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2179 {
2180     wxSize client_size = GetClientSize();
2181     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2182                                     &client_size.x, &client_size.y );
2183
2184     // we should deal with the pixel here
2185     unsigned int row = GetLineAt(client_size.y) - 1;
2186
2187     return wxMin( GetRowCount()-1, row );
2188 }
2189
2190 unsigned int wxDataViewMainWindow::GetRowCount()
2191 {
2192     if ( m_count == -1 )
2193     {
2194         m_count = RecalculateCount();
2195         UpdateDisplay();
2196     }
2197     return m_count;
2198 }
2199
2200 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2201 {
2202     m_currentRow = row;
2203
2204     // send event
2205 }
2206
2207 void wxDataViewMainWindow::SelectAllRows( bool on )
2208 {
2209     if (IsEmpty())
2210         return;
2211
2212     if (on)
2213     {
2214         m_selection.Clear();
2215         for (unsigned int i = 0; i < GetRowCount(); i++)
2216             m_selection.Add( i );
2217         Refresh();
2218     }
2219     else
2220     {
2221         unsigned int first_visible = GetFirstVisibleRow();
2222         unsigned int last_visible = GetLastVisibleRow();
2223         unsigned int i;
2224         for (i = 0; i < m_selection.GetCount(); i++)
2225         {
2226             unsigned int row = m_selection[i];
2227             if ((row >= first_visible) && (row <= last_visible))
2228                 RefreshRow( row );
2229         }
2230         m_selection.Clear();
2231     }
2232 }
2233
2234 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2235 {
2236     if (m_selection.Index( row ) == wxNOT_FOUND)
2237     {
2238         if (on)
2239         {
2240             m_selection.Add( row );
2241             RefreshRow( row );
2242         }
2243     }
2244     else
2245     {
2246         if (!on)
2247         {
2248             m_selection.Remove( row );
2249             RefreshRow( row );
2250         }
2251     }
2252 }
2253
2254 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2255 {
2256     if (from > to)
2257     {
2258         unsigned int tmp = from;
2259         from = to;
2260         to = tmp;
2261     }
2262
2263     unsigned int i;
2264     for (i = from; i <= to; i++)
2265     {
2266         if (m_selection.Index( i ) == wxNOT_FOUND)
2267         {
2268             if (on)
2269                 m_selection.Add( i );
2270         }
2271         else
2272         {
2273             if (!on)
2274                 m_selection.Remove( i );
2275         }
2276     }
2277     RefreshRows( from, to );
2278 }
2279
2280 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2281 {
2282     for (size_t i=0; i < aSelections.GetCount(); i++)
2283     {
2284         int n = aSelections[i];
2285
2286         m_selection.Add( n );
2287         RefreshRow( n );
2288     }
2289 }
2290
2291 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2292 {
2293     if (m_selection.Index( row ) == wxNOT_FOUND)
2294         m_selection.Add( row );
2295     else
2296         m_selection.Remove( row );
2297     RefreshRow( row );
2298 }
2299
2300 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2301 {
2302     return (m_selection.Index( row ) != wxNOT_FOUND);
2303 }
2304
2305 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2306 {
2307     wxWindow *parent = GetParent();
2308     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2309
2310     le.SetEventObject(parent);
2311     le.SetModel(GetOwner()->GetModel());
2312     le.SetItem( item );
2313
2314     parent->GetEventHandler()->ProcessEvent(le);
2315 }
2316
2317 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2318 {
2319     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2320     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2321
2322     wxSize client_size = GetClientSize();
2323     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2324     wxRect intersect_rect = client_rect.Intersect( rect );
2325     if (intersect_rect.width > 0)
2326         Refresh( true, &intersect_rect );
2327 }
2328
2329 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2330 {
2331     if (from > to)
2332     {
2333         unsigned int tmp = to;
2334         to = from;
2335         from = tmp;
2336     }
2337
2338     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2339     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2340
2341     wxSize client_size = GetClientSize();
2342     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2343     wxRect intersect_rect = client_rect.Intersect( rect );
2344     if (intersect_rect.width > 0)
2345         Refresh( true, &intersect_rect );
2346 }
2347
2348 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2349 {
2350     wxSize client_size = GetClientSize();
2351     int start = GetLineStart( firstRow );
2352     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2353     if (start > client_size.y) return;
2354
2355     wxRect rect( 0, start, client_size.x, client_size.y - start );
2356
2357     Refresh( true, &rect );
2358 }
2359
2360 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2361 {
2362     wxCHECK_RET( newCurrent < GetRowCount(),
2363                 wxT("invalid item index in OnArrowChar()") );
2364
2365     // if there is no selection, we cannot move it anywhere
2366     if (!HasCurrentRow())
2367         return;
2368
2369     unsigned int oldCurrent = m_currentRow;
2370
2371     // in single selection we just ignore Shift as we can't select several
2372     // items anyhow
2373     if ( event.ShiftDown() && !IsSingleSel() )
2374     {
2375         RefreshRow( oldCurrent );
2376
2377         ChangeCurrentRow( newCurrent );
2378
2379         // select all the items between the old and the new one
2380         if ( oldCurrent > newCurrent )
2381         {
2382             newCurrent = oldCurrent;
2383             oldCurrent = m_currentRow;
2384         }
2385
2386         SelectRows( oldCurrent, newCurrent, true );
2387         if (oldCurrent!=newCurrent)
2388             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2389     }
2390     else // !shift
2391     {
2392         RefreshRow( oldCurrent );
2393
2394         // all previously selected items are unselected unless ctrl is held
2395         if ( !event.ControlDown() )
2396             SelectAllRows(false);
2397
2398         ChangeCurrentRow( newCurrent );
2399
2400         if ( !event.ControlDown() )
2401         {
2402             SelectRow( m_currentRow, true );
2403             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2404         }
2405         else
2406             RefreshRow( m_currentRow );
2407     }
2408
2409     GetOwner()->EnsureVisible( m_currentRow, -1 );
2410 }
2411
2412 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2413 {
2414     wxRect rect;
2415     rect.x = 0;
2416     rect.y = GetLineStart( row );
2417     rect.width = GetEndOfLastCol();
2418     rect.height = GetLineHeight( row );
2419
2420     return rect;
2421 }
2422
2423 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2424 {
2425     const wxDataViewModel *model = GetOwner()->GetModel();
2426
2427     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2428     {
2429         // TODO make more efficient
2430
2431         int start = 0;
2432
2433         unsigned int r;
2434         for (r = 0; r < row; r++)
2435         {
2436             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2437             if (!node) return start;
2438
2439             wxDataViewItem item = node->GetItem();
2440
2441             if (node && !node->HasChildren())
2442             {
2443                 // Yes, if the node does not have any child, it must be a leaf which
2444                 // mean that it is a temporarily created by GetTreeNodeByRow
2445                 wxDELETE(node);
2446             }
2447
2448             unsigned int cols = GetOwner()->GetColumnCount();
2449             unsigned int col;
2450             int height = m_lineHeight;
2451             for (col = 0; col < cols; col++)
2452             {
2453                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2454                 if (column->IsHidden())
2455                     continue;      // skip it!
2456
2457                 if ((col != 0) &&
2458                     model->IsContainer(item) &&
2459                     !model->HasContainerColumns(item))
2460                     continue;      // skip it!
2461
2462                 wxVariant value;
2463                 model->GetValue( value, item, column->GetModelColumn() );
2464
2465                 wxDataViewRenderer *renderer =
2466                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2467                 renderer->SetValue( value );
2468                 height = wxMax( height, renderer->GetSize().y );
2469             }
2470
2471             start += height;
2472         }
2473
2474         return start;
2475     }
2476     else
2477     {
2478         return row * m_lineHeight;
2479     }
2480 }
2481
2482 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2483 {
2484     const wxDataViewModel *model = GetOwner()->GetModel();
2485
2486     // check for the easy case first
2487     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2488         return y / m_lineHeight;
2489
2490     // TODO make more efficient
2491     unsigned int row = 0;
2492     unsigned int yy = 0;
2493     for (;;)
2494     {
2495         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2496         if (!node)
2497         {
2498             // not really correct...
2499             return row + ((y-yy) / m_lineHeight);
2500         }
2501
2502         wxDataViewItem item = node->GetItem();
2503
2504         if (node && !node->HasChildren())
2505         {
2506             // Yes, if the node does not have any child, it must be a leaf which
2507             // mean that it is a temporarily created by GetTreeNodeByRow
2508             wxDELETE(node);
2509         }
2510
2511         unsigned int cols = GetOwner()->GetColumnCount();
2512         unsigned int col;
2513         int height = m_lineHeight;
2514         for (col = 0; col < cols; col++)
2515         {
2516             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2517             if (column->IsHidden())
2518                 continue;      // skip it!
2519
2520             if ((col != 0) &&
2521                 model->IsContainer(item) &&
2522                 !model->HasContainerColumns(item))
2523                 continue;      // skip it!
2524
2525             wxVariant value;
2526             model->GetValue( value, item, column->GetModelColumn() );
2527
2528             wxDataViewRenderer *renderer =
2529                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2530             renderer->SetValue( value );
2531             height = wxMax( height, renderer->GetSize().y );
2532         }
2533
2534         yy += height;
2535         if (y < yy)
2536             return row;
2537
2538         row++;
2539     }
2540 }
2541
2542 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2543 {
2544     const wxDataViewModel *model = GetOwner()->GetModel();
2545
2546     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2547     {
2548         wxASSERT( !IsVirtualList() );
2549
2550         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2551         // wxASSERT( node );
2552         if (!node) return m_lineHeight;
2553
2554         wxDataViewItem item = node->GetItem();
2555
2556         if (node && !node->HasChildren())
2557         {
2558                 // Yes, if the node does not have any child, it must be a leaf which
2559                 // mean that it is a temporarily created by GetTreeNodeByRow
2560             wxDELETE(node);
2561         }
2562
2563         int height = m_lineHeight;
2564
2565         unsigned int cols = GetOwner()->GetColumnCount();
2566         unsigned int col;
2567         for (col = 0; col < cols; col++)
2568         {
2569             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2570             if (column->IsHidden())
2571                 continue;      // skip it!
2572
2573             if ((col != 0) &&
2574                 model->IsContainer(item) &&
2575                 !model->HasContainerColumns(item))
2576                 continue;      // skip it!
2577
2578             wxVariant value;
2579             model->GetValue( value, item, column->GetModelColumn() );
2580
2581             wxDataViewRenderer *renderer =
2582                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2583             renderer->SetValue( value );
2584             height = wxMax( height, renderer->GetSize().y );
2585         }
2586
2587         return height;
2588     }
2589     else
2590     {
2591         return m_lineHeight;
2592     }
2593 }
2594
2595 class RowToItemJob: public DoJob
2596 {
2597 public:
2598     RowToItemJob( unsigned int row , int current )
2599         { this->row = row; this->current = current; }
2600     virtual ~RowToItemJob() {}
2601
2602     virtual int operator() ( wxDataViewTreeNode * node )
2603     {
2604         current ++;
2605         if( current == static_cast<int>(row))
2606         {
2607             ret = node->GetItem();
2608             return DoJob::OK;
2609         }
2610
2611         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2612         {
2613             current += node->GetSubTreeCount();
2614             return  DoJob::IGR;
2615         }
2616         else
2617         {
2618             // If the current has no child node, we can find the desired item of the row
2619             // number directly.
2620             // This if can speed up finding in some case, and will has a very good effect
2621             // when it comes to list view
2622             if( node->GetNodes().GetCount() == 0)
2623             {
2624                 int index = static_cast<int>(row) - current - 1;
2625                 ret = node->GetChildren().Item( index );
2626                 return DoJob::OK;
2627             }
2628             return DoJob::CONT;
2629         }
2630     }
2631
2632     virtual int operator() ( void * n )
2633     {
2634         current ++;
2635         if( current == static_cast<int>(row))
2636         {
2637             ret = wxDataViewItem( n );
2638             return DoJob::OK;
2639         }
2640         return DoJob::CONT;
2641     }
2642
2643     wxDataViewItem GetResult() const
2644         { return ret; }
2645
2646 private:
2647     unsigned int row;
2648     int current;
2649     wxDataViewItem ret;
2650 };
2651
2652 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2653 {
2654     if (IsVirtualList())
2655     {
2656         return wxDataViewItem( wxUIntToPtr(row+1) );
2657     }
2658     else
2659     {
2660         RowToItemJob job( row, -2 );
2661         Walker( m_root , job );
2662         return job.GetResult();
2663     }
2664 }
2665
2666 class RowToTreeNodeJob: public DoJob
2667 {
2668 public:
2669     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2670     {
2671         this->row = row;
2672         this->current = current;
2673         ret = NULL;
2674         parent = node;
2675     }
2676     virtual ~RowToTreeNodeJob(){ }
2677
2678     virtual int operator() ( wxDataViewTreeNode * node )
2679     {
2680         current ++;
2681         if( current == static_cast<int>(row))
2682         {
2683             ret = node;
2684             return DoJob::OK;
2685         }
2686
2687         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2688         {
2689             current += node->GetSubTreeCount();
2690             return  DoJob::IGR;
2691         }
2692         else
2693         {
2694             parent = node;
2695
2696             // If the current node has no children, we can find the desired item of the
2697             // row number directly.
2698             // This if can speed up finding in some case, and will have a very good
2699             // effect for list views.
2700             if( node->GetNodes().GetCount() == 0)
2701             {
2702                 int index = static_cast<int>(row) - current - 1;
2703                 void * n = node->GetChildren().Item( index );
2704                 ret = new wxDataViewTreeNode( parent );
2705                 ret->SetItem( wxDataViewItem( n ));
2706                 ret->SetHasChildren(false);
2707                 return DoJob::OK;
2708             }
2709             return DoJob::CONT;
2710         }
2711     }
2712
2713     virtual int operator() ( void * n )
2714     {
2715         current ++;
2716         if( current == static_cast<int>(row))
2717         {
2718             ret = new wxDataViewTreeNode( parent );
2719             ret->SetItem( wxDataViewItem( n ));
2720             ret->SetHasChildren(false);
2721             return DoJob::OK;
2722         }
2723
2724         return DoJob::CONT;
2725     }
2726
2727     wxDataViewTreeNode * GetResult() const
2728         { return ret; }
2729
2730 private:
2731     unsigned int row;
2732     int current;
2733     wxDataViewTreeNode * ret;
2734     wxDataViewTreeNode * parent;
2735 };
2736
2737 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2738 {
2739     wxASSERT( !IsVirtualList() );
2740
2741     RowToTreeNodeJob job( row , -2, m_root );
2742     Walker( m_root , job );
2743     return job.GetResult();
2744 }
2745
2746 wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type,
2747                                                          const wxDataViewItem & item )
2748 {
2749     wxWindow *parent = GetParent();
2750     wxDataViewEvent le(type, parent->GetId());
2751
2752     le.SetEventObject(parent);
2753     le.SetModel(GetOwner()->GetModel());
2754     le.SetItem( item );
2755
2756     parent->GetEventHandler()->ProcessEvent(le);
2757     return le;
2758 }
2759
2760 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2761 {
2762     if (IsVirtualList())
2763         return false;
2764
2765     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2766     if (!node)
2767         return false;
2768
2769     if (!node->HasChildren())
2770     {
2771         delete node;
2772         return false;
2773     }
2774
2775     return node->IsOpen();
2776 }
2777
2778 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2779 {
2780     if (IsVirtualList())
2781         return false;
2782
2783     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2784     if (!node)
2785         return false;
2786
2787     if (!node->HasChildren())
2788     {
2789         delete node;
2790         return false;
2791     }
2792
2793     return true;
2794 }
2795
2796 void wxDataViewMainWindow::Expand( unsigned int row )
2797 {
2798     if (IsVirtualList())
2799         return;
2800
2801     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2802     if (!node)
2803         return;
2804
2805     if (!node->HasChildren())
2806     {
2807         delete node;
2808         return;
2809     }
2810
2811             if (!node->IsOpen())
2812             {
2813                 wxDataViewEvent e =
2814                     SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem());
2815
2816                 // Check if the user prevent expanding
2817                 if( e.GetSkipped() )
2818                     return;
2819
2820                 node->ToggleOpen();
2821
2822                 // build the children of current node
2823                 if( node->GetChildrenNumber() == 0 )
2824                 {
2825                     SortPrepare();
2826                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2827                 }
2828
2829                 // By expanding the node all row indices that are currently in the selection list
2830                 // and are greater than our node have become invalid. So we have to correct that now.
2831                 const unsigned rowAdjustment = node->GetSubTreeCount();
2832                 for(unsigned i=0; i<m_selection.size(); ++i)
2833                 {
2834                     const unsigned testRow = m_selection[i];
2835                     // all rows above us are not affected, so skip them
2836                     if(testRow <= row)
2837                         continue;
2838
2839                     m_selection[i] += rowAdjustment;
2840                 }
2841
2842                 if(m_currentRow > row)
2843                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2844
2845                 m_count = -1;
2846                 UpdateDisplay();
2847                 // Send the expanded event
2848                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2849             }
2850 }
2851
2852 void wxDataViewMainWindow::Collapse(unsigned int row)
2853 {
2854     if (IsVirtualList())
2855         return;
2856
2857     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2858     if (!node)
2859         return;
2860
2861     if (!node->HasChildren())
2862     {
2863         delete node;
2864         return;
2865     }
2866
2867         if (node->IsOpen())
2868         {
2869             wxDataViewEvent e =
2870                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
2871             if( e.GetSkipped() )
2872                 return;
2873
2874             // Find out if there are selected items below the current node.
2875             bool selectCollapsingRow = false;
2876             const unsigned rowAdjustment = node->GetSubTreeCount();
2877             unsigned maxRowToBeTested = row + rowAdjustment;
2878             for(unsigned i=0; i<m_selection.size(); ++i)
2879             {
2880                 const unsigned testRow = m_selection[i];
2881                 if(testRow > row && testRow <= maxRowToBeTested)
2882                 {
2883                     selectCollapsingRow = true;
2884                     // get out as soon as we have found a node that is selected
2885                     break;
2886                 }
2887             }
2888
2889             node->ToggleOpen();
2890
2891             // If the node to be closed has selected items the user won't see those any longer.
2892             // We select the collapsing node in this case.
2893             if(selectCollapsingRow)
2894             {
2895                 SelectAllRows(false);
2896                 ChangeCurrentRow(row);
2897                 SelectRow(row, true);
2898                 SendSelectionChangedEvent(GetItemByRow(row));
2899             }
2900             else
2901             {
2902                 // if there were no selected items below our node we still need to "fix" the
2903                 // selection list to adjust for the changing of the row indices.
2904                 // We actually do the opposite of what we are doing in Expand().
2905                 for(unsigned i=0; i<m_selection.size(); ++i)
2906                 {
2907                     const unsigned testRow = m_selection[i];
2908                     // all rows above us are not affected, so skip them
2909                     if(testRow <= row)
2910                         continue;
2911
2912                     m_selection[i] -= rowAdjustment;
2913                 }
2914
2915                 // if the "current row" is being collapsed away we change it to the current row ;-)
2916                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
2917                     ChangeCurrentRow(row);
2918                 else if(m_currentRow > row)
2919                     ChangeCurrentRow(m_currentRow - rowAdjustment);
2920             }
2921
2922             m_count = -1;
2923             UpdateDisplay();
2924             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
2925         }
2926 }
2927
2928 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
2929 {
2930     wxDataViewModel * model = GetOwner()->GetModel();
2931     if( model == NULL )
2932         return NULL;
2933
2934     if (!item.IsOk())
2935         return m_root;
2936
2937     // Compose the a parent-chain of the finding item
2938     ItemList list;
2939     list.DeleteContents( true );
2940     wxDataViewItem it( item );
2941     while( it.IsOk() )
2942     {
2943         wxDataViewItem * pItem = new wxDataViewItem( it );
2944         list.Insert( pItem );
2945         it = model->GetParent( it );
2946     }
2947
2948     // Find the item along the parent-chain.
2949     // This algorithm is designed to speed up the node-finding method
2950     wxDataViewTreeNode * node = m_root;
2951     for( ItemList::const_iterator iter = list.begin(); iter !=list.end(); iter++ )
2952     {
2953         if( node->HasChildren() )
2954         {
2955             if( node->GetChildrenNumber() == 0 )
2956             {
2957                 SortPrepare();
2958                 ::BuildTreeHelper(model, node->GetItem(), node);
2959             }
2960
2961             wxDataViewTreeNodes nodes = node->GetNodes();
2962             unsigned int i;
2963             bool found = false;
2964
2965             for (i = 0; i < nodes.GetCount(); i ++)
2966             {
2967                 if (nodes[i]->GetItem() == (**iter))
2968                 {
2969                     if (nodes[i]->GetItem() == item)
2970                     return nodes[i];
2971
2972                     node = nodes[i];
2973                     found = true;
2974                     break;
2975                 }
2976             }
2977             if (!found)
2978                 return NULL;
2979         }
2980         else
2981             return NULL;
2982     }
2983     return NULL;
2984 }
2985
2986 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
2987                                     wxDataViewColumn* &column )
2988 {
2989     wxDataViewColumn *col = NULL;
2990     unsigned int cols = GetOwner()->GetColumnCount();
2991     unsigned int colnum = 0;
2992     int x, y;
2993     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
2994     for (unsigned x_start = 0; colnum < cols; colnum++)
2995     {
2996         col = GetOwner()->GetColumnAt(colnum);
2997         if (col->IsHidden())
2998             continue;      // skip it!
2999
3000         unsigned int w = col->GetWidth();
3001         if (x_start+w >= (unsigned int)x)
3002             break;
3003
3004         x_start += w;
3005     }
3006
3007     column = col;
3008     item = GetItemByRow( GetLineAt( y ) );
3009 }
3010
3011 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3012                                           const wxDataViewColumn* column )
3013 {
3014     int xpos = 0;
3015     int width = 0;
3016
3017     unsigned int cols = GetOwner()->GetColumnCount();
3018     // If column is null the loop will compute the combined width of all columns.
3019     // Otherwise, it will compute the x position of the column we are looking for.
3020     for (unsigned int i = 0; i < cols; i++)
3021     {
3022         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3023
3024         if (col == column)
3025             break;
3026
3027         if (col->IsHidden())
3028             continue;      // skip it!
3029
3030         xpos += col->GetWidth();
3031         width += col->GetWidth();
3032     }
3033
3034     if(column != 0)
3035     {
3036         // If we have a column, we need can get its width directly.
3037         if(column->IsHidden())
3038             width = 0;
3039         else
3040             width = column->GetWidth();
3041
3042     }
3043     else
3044     {
3045         // If we have no column, we reset the x position back to zero.
3046         xpos = 0;
3047     }
3048
3049     // we have to take an expander column into account and compute its indentation
3050     // to get the correct x position where the actual text is
3051     int indent = 0;
3052     int row = GetRowByItem(item);
3053     if (!IsVirtualList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3054     {
3055         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3056         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3057         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3058
3059         if(!node->HasChildren())
3060             delete node;
3061     }
3062
3063     wxRect itemRect( xpos + indent,
3064                      GetLineStart( row ),
3065                      width - indent,
3066                      GetLineHeight( row ) );
3067
3068     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3069                                       &itemRect.x, &itemRect.y );
3070
3071     return itemRect;
3072 }
3073
3074 int wxDataViewMainWindow::RecalculateCount()
3075 {
3076     if (IsVirtualList())
3077     {
3078         wxDataViewVirtualListModel *list_model =
3079             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3080
3081         return list_model->GetCount();
3082     }
3083     else
3084     {
3085         return m_root->GetSubTreeCount();
3086     }
3087 }
3088
3089 class ItemToRowJob : public DoJob
3090 {
3091 public:
3092     ItemToRowJob(const wxDataViewItem& item_, ItemList::const_iterator iter)
3093         : m_iter(iter),
3094         item(item_)
3095     {
3096         ret = -1;
3097     }
3098
3099     // Maybe binary search will help to speed up this process
3100     virtual int operator() ( wxDataViewTreeNode * node)
3101     {
3102         ret ++;
3103         if( node->GetItem() == item )
3104         {
3105             return DoJob::OK;
3106         }
3107
3108         if( node->GetItem() == **m_iter )
3109         {
3110             m_iter++;
3111             return DoJob::CONT;
3112         }
3113         else
3114         {
3115             ret += node->GetSubTreeCount();
3116             return DoJob::IGR;
3117         }
3118
3119     }
3120
3121     virtual int operator() ( void * n )
3122     {
3123         ret ++;
3124         if( n == item.GetID() )
3125             return DoJob::OK;
3126         return DoJob::CONT;
3127     }
3128
3129     // the row number is begin from zero
3130     int GetResult() const
3131         { return ret -1; }
3132
3133 private:
3134     ItemList::const_iterator  m_iter;
3135     wxDataViewItem item;
3136     int ret;
3137
3138 };
3139
3140 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3141 {
3142     const wxDataViewModel * model = GetOwner()->GetModel();
3143     if( model == NULL )
3144         return -1;
3145
3146     if (IsVirtualList())
3147     {
3148         return wxPtrToUInt( item.GetID() ) -1;
3149     }
3150     else
3151     {
3152         if( !item.IsOk() )
3153             return -1;
3154
3155         // Compose the a parent-chain of the finding item
3156         ItemList list;
3157         wxDataViewItem * pItem;
3158         list.DeleteContents( true );
3159         wxDataViewItem it( item );
3160         while( it.IsOk() )
3161         {
3162             pItem = new wxDataViewItem( it );
3163             list.Insert( pItem );
3164             it = model->GetParent( it );
3165         }
3166         pItem = new wxDataViewItem( );
3167         list.Insert( pItem );
3168
3169         ItemToRowJob job( item, list.begin() );
3170         Walker(m_root , job );
3171         return job.GetResult();
3172     }
3173 }
3174
3175 static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item,
3176                              wxDataViewTreeNode * node)
3177 {
3178     if( !model->IsContainer( item ) )
3179         return;
3180
3181     wxDataViewItemArray children;
3182     unsigned int num = model->GetChildren( item, children);
3183
3184     unsigned int index = 0;
3185     while( index < num )
3186     {
3187         if( model->IsContainer( children[index] ) )
3188         {
3189             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3190             n->SetItem(children[index]);
3191             n->SetHasChildren( true );
3192             node->AddNode( n );
3193         }
3194         else
3195         {
3196             node->AddLeaf( children[index].GetID() );
3197         }
3198         index ++;
3199     }
3200     node->SetSubTreeCount( num );
3201     wxDataViewTreeNode * n = node->GetParent();
3202     if( n != NULL)
3203         n->ChangeSubTreeCount(num);
3204
3205 }
3206
3207 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3208 {
3209     DestroyTree();
3210
3211     if (GetOwner()->GetModel()->IsVirtualListModel())
3212     {
3213         m_count = -1;
3214         return;
3215     }
3216
3217     m_root = new wxDataViewTreeNode( NULL );
3218     m_root->SetHasChildren(true);
3219
3220     // First we define a invalid item to fetch the top-level elements
3221     wxDataViewItem item;
3222     SortPrepare();
3223     BuildTreeHelper( model, item, m_root);
3224     m_count = -1;
3225 }
3226
3227 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3228 {
3229     if( node->GetNodeNumber() != 0 )
3230     {
3231         int len = node->GetNodeNumber();
3232         wxDataViewTreeNodes& nodes = node->GetNodes();
3233         for (int i = 0; i < len; i++)
3234             DestroyTreeHelper(nodes[i]);
3235     }
3236     delete node;
3237 }
3238
3239 void wxDataViewMainWindow::DestroyTree()
3240 {
3241     if (!IsVirtualList())
3242     {
3243         ::DestroyTreeHelper(m_root);
3244             m_count = 0;
3245             m_root = NULL;
3246     }
3247 }
3248
3249 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3250 {
3251     if ( GetParent()->HandleAsNavigationKey(event) )
3252         return;
3253
3254     // no item -> nothing to do
3255     if (!HasCurrentRow())
3256     {
3257         event.Skip();
3258         return;
3259     }
3260
3261     // don't use m_linesPerPage directly as it might not be computed yet
3262     const int pageSize = GetCountPerPage();
3263     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3264
3265     switch ( event.GetKeyCode() )
3266     {
3267         case WXK_RETURN:
3268             {
3269                 wxWindow *parent = GetParent();
3270                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3271                                    parent->GetId());
3272                 le.SetItem( GetItemByRow(m_currentRow) );
3273                 le.SetEventObject(parent);
3274                 le.SetModel(GetOwner()->GetModel());
3275
3276                 parent->GetEventHandler()->ProcessEvent(le);
3277             }
3278             break;
3279
3280         case WXK_UP:
3281             if ( m_currentRow > 0 )
3282                 OnArrowChar( m_currentRow - 1, event );
3283             break;
3284
3285         case WXK_DOWN:
3286             if ( m_currentRow < GetRowCount() - 1 )
3287                 OnArrowChar( m_currentRow + 1, event );
3288             break;
3289         // Add the process for tree expanding/collapsing
3290         case WXK_LEFT:
3291         {
3292             if (IsVirtualList())
3293                break;
3294
3295             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3296             if (!node)
3297                 break;
3298
3299             if (node->HasChildren() && node->IsOpen())
3300             {
3301                 Collapse(m_currentRow);
3302             }
3303             else    // if the node is already closed we move the selection to its parent
3304             {
3305                 wxDataViewTreeNode *parent_node = node->GetParent();
3306
3307                 if(!node->HasChildren())
3308                     delete node;
3309
3310                 if (parent_node)
3311                 {
3312                     int parent = GetRowByItem( parent_node->GetItem() );
3313                     if ( parent >= 0 )
3314                     {
3315                         unsigned int row = m_currentRow;
3316                         SelectRow( row, false);
3317                         SelectRow( parent, true );
3318                         ChangeCurrentRow( parent );
3319                         GetOwner()->EnsureVisible( parent, -1 );
3320                         SendSelectionChangedEvent( parent_node->GetItem() );
3321                     }
3322                 }
3323             }
3324             break;
3325         }
3326         case WXK_RIGHT:
3327         {
3328             if (!IsExpanded( m_currentRow ))
3329                 Expand( m_currentRow );
3330             else
3331             {
3332                 unsigned int row = m_currentRow;
3333                 SelectRow( row, false );
3334                 SelectRow( row + 1, true );
3335                 ChangeCurrentRow( row + 1 );
3336                 GetOwner()->EnsureVisible( row + 1, -1 );
3337                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3338             }
3339             break;
3340         }
3341         case WXK_END:
3342         {
3343             if (!IsEmpty())
3344                 OnArrowChar( GetRowCount() - 1, event );
3345             break;
3346         }
3347         case WXK_HOME:
3348             if (!IsEmpty())
3349                 OnArrowChar( 0, event );
3350             break;
3351
3352         case WXK_PAGEUP:
3353             {
3354                 int steps = pageSize - 1;
3355                 int index = m_currentRow - steps;
3356                 if (index < 0)
3357                     index = 0;
3358
3359                 OnArrowChar( index, event );
3360             }
3361             break;
3362
3363         case WXK_PAGEDOWN:
3364             {
3365                 int steps = pageSize - 1;
3366                 unsigned int index = m_currentRow + steps;
3367                 unsigned int count = GetRowCount();
3368                 if ( index >= count )
3369                     index = count - 1;
3370
3371                 OnArrowChar( index, event );
3372             }
3373             break;
3374
3375         case WXK_F2:
3376             {
3377                 if(m_selection.size() == 1)
3378                 {
3379                     // TODO: we need to revise that when we have a concept for a 'current column'
3380                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3381                 }
3382             }
3383             break;
3384
3385         default:
3386             event.Skip();
3387     }
3388 }
3389
3390 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3391 {
3392     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3393     {
3394         // let the base handle mouse wheel events.
3395         event.Skip();
3396         return;
3397     }
3398
3399     int x = event.GetX();
3400     int y = event.GetY();
3401     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3402     wxDataViewColumn *col = NULL;
3403
3404     int xpos = 0;
3405     unsigned int cols = GetOwner()->GetColumnCount();
3406     unsigned int i;
3407     for (i = 0; i < cols; i++)
3408     {
3409         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3410         if (c->IsHidden())
3411             continue;      // skip it!
3412
3413         if (x < xpos + c->GetWidth())
3414         {
3415             col = c;
3416             break;
3417         }
3418         xpos += c->GetWidth();
3419     }
3420     if (!col)
3421         return;
3422
3423     wxDataViewRenderer *cell = col->GetRenderer();
3424     unsigned int current = GetLineAt( y );
3425     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3426     {
3427         // Unselect all if below the last row ?
3428         return;
3429     }
3430
3431     // Test whether the mouse is hovered on the tree item button
3432     bool hoverOverExpander = false;
3433     if ((!IsVirtualList()) && (GetOwner()->GetExpanderColumn() == col))
3434     {
3435         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3436         if( node!=NULL && node->HasChildren() )
3437         {
3438             int indent = node->GetIndentLevel();
3439             indent = GetOwner()->GetIndent()*indent;
3440
3441             // we make the rectangle we are looking in a bit bigger than the actual
3442             // visual expander so the user can hit that little thing reliably
3443             wxRect rect( xpos + indent,
3444                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3445                         m_lineHeight, m_lineHeight);
3446             if( rect.Contains(x, y) )
3447             {
3448                 // So the mouse is over the expander
3449                 hoverOverExpander = true;
3450                 if (m_underMouse && m_underMouse != node)
3451                 {
3452                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3453                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3454                 }
3455                 if (m_underMouse != node)
3456                 {
3457                     // wxLogMessage("Do the row: %d", current);
3458                     RefreshRow(current);
3459                 }
3460                 m_underMouse = node;
3461             }
3462         }
3463         if (node!=NULL && !node->HasChildren())
3464             delete node;
3465     }
3466     if (!hoverOverExpander)
3467     {
3468         if (m_underMouse != NULL)
3469         {
3470             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3471             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3472             m_underMouse = NULL;
3473         }
3474     }
3475
3476     wxDataViewModel *model = GetOwner()->GetModel();
3477
3478 #if wxUSE_DRAG_AND_DROP
3479     if (event.Dragging())
3480     {
3481         if (m_dragCount == 0)
3482         {
3483             // we have to report the raw, physical coords as we want to be
3484             // able to call HitTest(event.m_pointDrag) from the user code to
3485             // get the item being dragged
3486             m_dragStart = event.GetPosition();
3487         }
3488
3489         m_dragCount++;
3490
3491         if (m_dragCount != 3)
3492             return;
3493
3494         if (event.LeftIsDown())
3495         {
3496             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3497                                              &m_dragStart.x, &m_dragStart.y );
3498             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3499             wxDataViewItem item = GetItemByRow( drag_item_row );
3500
3501             // Notify cell about drag
3502             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3503             event.SetEventObject( m_owner );
3504             event.SetItem( item );
3505             event.SetModel( model );
3506             if (!m_owner->HandleWindowEvent( event ))
3507                 return;
3508
3509             if (!event.IsAllowed())
3510                 return;
3511
3512             wxDataObject *obj = event.GetDataObject();
3513             if (!obj)
3514                 return;
3515
3516             wxDataViewDropSource drag( this, drag_item_row );
3517             drag.SetData( *obj );
3518             /* wxDragResult res = */ drag.DoDragDrop();
3519             delete obj;
3520         }
3521         return;
3522     }
3523     else
3524     {
3525         m_dragCount = 0;
3526     }
3527 #endif // wxUSE_DRAG_AND_DROP
3528
3529     bool simulateClick = false;
3530
3531     if (event.ButtonDClick())
3532     {
3533         m_renameTimer->Stop();
3534         m_lastOnSame = false;
3535     }
3536
3537     wxDataViewItem item = GetItemByRow(current);
3538     bool ignore_other_columns =
3539         ((GetOwner()->GetExpanderColumn() != col) &&
3540         (model->IsContainer(item)) &&
3541         (!model->HasContainerColumns(item)));
3542
3543     if (event.LeftDClick())
3544     {
3545         if(hoverOverExpander)
3546         {
3547             // a double click on the expander will be converted into a "simulated" normal click
3548             simulateClick = true;
3549         }
3550         else if ( current == m_lineLastClicked )
3551         {
3552             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3553             {
3554                 if ( wxDataViewCustomRenderer *custom = cell->WXGetAsCustom() )
3555                 {
3556                     wxVariant value;
3557                     model->GetValue( value, item, col->GetModelColumn() );
3558                     custom->SetValue( value );
3559                     wxRect cell_rect( xpos, GetLineStart( current ),
3560                                     col->GetWidth(), GetLineHeight( current ) );
3561                     custom->Activate( cell_rect, model, item, col->GetModelColumn() );
3562                 }
3563             }
3564             else
3565             {
3566                 wxWindow *parent = GetParent();
3567                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3568                 le.SetItem( item );
3569                 le.SetEventObject(parent);
3570                 le.SetModel(GetOwner()->GetModel());
3571
3572                 parent->GetEventHandler()->ProcessEvent(le);
3573             }
3574             return;
3575         }
3576         else
3577         {
3578             // The first click was on another item, so don't interpret this as
3579             // a double click, but as a simple click instead
3580             simulateClick = true;
3581         }
3582     }
3583
3584     if (event.LeftUp() && !hoverOverExpander)
3585     {
3586         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3587         {
3588             // select single line
3589             SelectAllRows( false );
3590             SelectRow( m_lineSelectSingleOnUp, true );
3591             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3592         }
3593
3594         // If the user click the expander, we do not do editing even if the column
3595         // with expander are editable
3596         if (m_lastOnSame && !ignore_other_columns)
3597         {
3598             if ((col == m_currentCol) && (current == m_currentRow) &&
3599                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3600             {
3601                 m_renameTimer->Start( 100, true );
3602             }
3603         }
3604
3605         m_lastOnSame = false;
3606         m_lineSelectSingleOnUp = (unsigned int)-1;
3607     }
3608     else if(!event.LeftUp())
3609     {
3610         // This is necessary, because after a DnD operation in
3611         // from and to ourself, the up event is swallowed by the
3612         // DnD code. So on next non-up event (which means here and
3613         // now) m_lineSelectSingleOnUp should be reset.
3614         m_lineSelectSingleOnUp = (unsigned int)-1;
3615     }
3616
3617     if (event.RightDown())
3618     {
3619         m_lineBeforeLastClicked = m_lineLastClicked;
3620         m_lineLastClicked = current;
3621
3622         // If the item is already selected, do not update the selection.
3623         // Multi-selections should not be cleared if a selected item is clicked.
3624         if (!IsRowSelected(current))
3625         {
3626             SelectAllRows(false);
3627             ChangeCurrentRow(current);
3628             SelectRow(m_currentRow,true);
3629             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3630         }
3631     }
3632     else if (event.RightUp())
3633     {
3634         wxVariant value;
3635         model->GetValue( value, item, col->GetModelColumn() );
3636         wxWindow *parent = GetParent();
3637         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3638         le.SetItem( item );
3639         le.SetEventObject(parent);
3640         le.SetModel(GetOwner()->GetModel());
3641         le.SetValue(value);
3642         parent->GetEventHandler()->ProcessEvent(le);
3643     }
3644     else if (event.MiddleDown())
3645     {
3646     }
3647
3648     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3649     {
3650         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3651
3652         // hoverOverExpander being true tells us that our node must be
3653         // valid and have children.
3654         // So we don't need any extra checks.
3655         if( node->IsOpen() )
3656             Collapse(current);
3657         else
3658             Expand(current);
3659     }
3660     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3661     {
3662         SetFocus();
3663
3664         m_lineBeforeLastClicked = m_lineLastClicked;
3665         m_lineLastClicked = current;
3666
3667         unsigned int oldCurrentRow = m_currentRow;
3668         bool oldWasSelected = IsRowSelected(m_currentRow);
3669
3670         bool cmdModifierDown = event.CmdDown();
3671         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3672         {
3673             if ( IsSingleSel() || !IsRowSelected(current) )
3674             {
3675                 SelectAllRows( false );
3676                 ChangeCurrentRow(current);
3677                 SelectRow(m_currentRow,true);
3678                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3679             }
3680             else // multi sel & current is highlighted & no mod keys
3681             {
3682                 m_lineSelectSingleOnUp = current;
3683                 ChangeCurrentRow(current); // change focus
3684             }
3685         }
3686         else // multi sel & either ctrl or shift is down
3687         {
3688             if (cmdModifierDown)
3689             {
3690                 ChangeCurrentRow(current);
3691                 ReverseRowSelection(m_currentRow);
3692                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3693             }
3694             else if (event.ShiftDown())
3695             {
3696                 ChangeCurrentRow(current);
3697
3698                 unsigned int lineFrom = oldCurrentRow,
3699                     lineTo = current;
3700
3701                 if ( lineTo < lineFrom )
3702                 {
3703                     lineTo = lineFrom;
3704                     lineFrom = m_currentRow;
3705                 }
3706
3707                 SelectRows(lineFrom, lineTo, true);
3708                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3709             }
3710             else // !ctrl, !shift
3711             {
3712                 // test in the enclosing if should make it impossible
3713                 wxFAIL_MSG( wxT("how did we get here?") );
3714             }
3715         }
3716
3717         if (m_currentRow != oldCurrentRow)
3718             RefreshRow( oldCurrentRow );
3719
3720         wxDataViewColumn *oldCurrentCol = m_currentCol;
3721
3722         // Update selection here...
3723         m_currentCol = col;
3724
3725         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3726                         (current == oldCurrentRow)) && oldWasSelected;
3727
3728         // Call LeftClick after everything else as under GTK+
3729         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3730         {
3731             if ( wxDataViewCustomRenderer *custom = cell->WXGetAsCustom() )
3732             {
3733                 // notify cell about click
3734                 wxVariant value;
3735                 model->GetValue( value, item, col->GetModelColumn() );
3736                 custom->SetValue( value );
3737                 wxRect cell_rect( xpos, GetLineStart( current ),
3738                                   col->GetWidth(), GetLineHeight( current ) );
3739                  /* ignore ret */ custom->LeftClick( event.GetPosition(), cell_rect,
3740                                   model, item, col->GetModelColumn());
3741             }
3742         }
3743     }
3744 }
3745
3746 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3747 {
3748     m_hasFocus = true;
3749
3750     if (HasCurrentRow())
3751         Refresh();
3752
3753     event.Skip();
3754 }
3755
3756 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3757 {
3758     m_hasFocus = false;
3759
3760     if (HasCurrentRow())
3761         Refresh();
3762
3763     event.Skip();
3764 }
3765
3766 wxDataViewItem wxDataViewMainWindow::GetSelection() const
3767 {
3768     if( m_selection.GetCount() != 1 )
3769         return wxDataViewItem();
3770
3771     return GetItemByRow( m_selection.Item(0));
3772 }
3773
3774 //-----------------------------------------------------------------------------
3775 // wxDataViewCtrl
3776 //-----------------------------------------------------------------------------
3777
3778 WX_DEFINE_LIST(wxDataViewColumnList)
3779
3780 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3781 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3782     EVT_SIZE(wxDataViewCtrl::OnSize)
3783 END_EVENT_TABLE()
3784
3785 wxDataViewCtrl::~wxDataViewCtrl()
3786 {
3787     if (m_notifier)
3788         GetModel()->RemoveNotifier( m_notifier );
3789
3790     m_cols.Clear();
3791 }
3792
3793 void wxDataViewCtrl::Init()
3794 {
3795     m_cols.DeleteContents(true);
3796     m_notifier = NULL;
3797
3798     // No sorting column at start
3799     m_sortingColumnIdx = wxNOT_FOUND;
3800
3801     m_headerArea = NULL;
3802 }
3803
3804 bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
3805                             const wxPoint& pos, const wxSize& size,
3806                             long style, const wxValidator& validator )
3807 {
3808 //    if ( (style & wxBORDER_MASK) == 0)
3809 //        style |= wxBORDER_SUNKEN;
3810
3811     Init();
3812
3813     if (!wxControl::Create( parent, id, pos, size,
3814                             style | wxScrolledWindowStyle, validator))
3815         return false;
3816
3817     SetInitialSize(size);
3818
3819 #ifdef __WXMAC__
3820     MacSetClipChildren( true );
3821 #endif
3822
3823     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
3824
3825     if (HasFlag(wxDV_NO_HEADER))
3826         m_headerArea = NULL;
3827     else
3828         m_headerArea = new wxDataViewHeaderWindow(this);
3829
3830     SetTargetWindow( m_clientArea );
3831
3832     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
3833     if (m_headerArea)
3834         sizer->Add( m_headerArea, 0, wxGROW );
3835     sizer->Add( m_clientArea, 1, wxGROW );
3836     SetSizer( sizer );
3837
3838     return true;
3839 }
3840
3841 wxBorder wxDataViewCtrl::GetDefaultBorder() const
3842 {
3843     return wxBORDER_THEME;
3844 }
3845
3846 #ifdef __WXMSW__
3847 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
3848                                         WXWPARAM wParam,
3849                                         WXLPARAM lParam)
3850 {
3851     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
3852
3853 #ifndef __WXWINCE__
3854     // we need to process arrows ourselves for scrolling
3855     if ( nMsg == WM_GETDLGCODE )
3856     {
3857         rc |= DLGC_WANTARROWS;
3858     }
3859 #endif
3860
3861     return rc;
3862 }
3863 #endif
3864
3865 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
3866 {
3867     wxSize newsize = size;
3868     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
3869     newsize.y -= m_headerArea->GetSize().y;
3870
3871     return newsize;
3872 }
3873
3874 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
3875 {
3876     // We need to override OnSize so that our scrolled
3877     // window a) does call Layout() to use sizers for
3878     // positioning the controls but b) does not query
3879     // the sizer for their size and use that for setting
3880     // the scrollable area as set that ourselves by
3881     // calling SetScrollbar() further down.
3882
3883     Layout();
3884
3885     AdjustScrollbars();
3886 }
3887
3888 void wxDataViewCtrl::SetFocus()
3889 {
3890     if (m_clientArea)
3891         m_clientArea->SetFocus();
3892 }
3893
3894 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
3895 {
3896     if (!wxDataViewCtrlBase::AssociateModel( model ))
3897         return false;
3898
3899     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
3900
3901     model->AddNotifier( m_notifier );
3902
3903     m_clientArea->DestroyTree();
3904
3905     m_clientArea->BuildTree(model);
3906
3907     m_clientArea->UpdateDisplay();
3908
3909     return true;
3910 }
3911
3912 #if wxUSE_DRAG_AND_DROP
3913
3914 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
3915 {
3916     return m_clientArea->EnableDragSource( format );
3917 }
3918
3919 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
3920 {
3921     return m_clientArea->EnableDropTarget( format );
3922 }
3923
3924 #endif // wxUSE_DRAG_AND_DROP
3925
3926 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
3927 {
3928     if (!wxDataViewCtrlBase::AppendColumn(col))
3929         return false;
3930
3931     m_cols.Append( col );
3932     OnColumnsCountChanged();
3933     return true;
3934 }
3935
3936 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
3937 {
3938     if (!wxDataViewCtrlBase::PrependColumn(col))
3939         return false;
3940
3941     m_cols.Insert( col );
3942     OnColumnsCountChanged();
3943     return true;
3944 }
3945
3946 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
3947 {
3948     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
3949         return false;
3950
3951     m_cols.Insert( pos, col );
3952     OnColumnsCountChanged();
3953     return true;
3954 }
3955
3956 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
3957 {
3958     if ( m_headerArea )
3959         m_headerArea->UpdateColumn(idx);
3960
3961     m_clientArea->UpdateDisplay();
3962 }
3963
3964 void wxDataViewCtrl::OnColumnsCountChanged()
3965 {
3966     if (m_headerArea)
3967         m_headerArea->SetColumnCount(GetColumnCount());
3968
3969     m_clientArea->UpdateDisplay();
3970 }
3971
3972 void wxDataViewCtrl::DoSetExpanderColumn()
3973 {
3974     m_clientArea->UpdateDisplay();
3975 }
3976
3977 void wxDataViewCtrl::DoSetIndent()
3978 {
3979     m_clientArea->UpdateDisplay();
3980 }
3981
3982 unsigned int wxDataViewCtrl::GetColumnCount() const
3983 {
3984     return m_cols.GetCount();
3985 }
3986
3987 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
3988 {
3989     return m_cols[idx];
3990 }
3991
3992 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
3993 {
3994     // columns can't be reordered if there is no header window which allows
3995     // to do this
3996     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
3997                                     : pos;
3998
3999     return GetColumn(idx);
4000 }
4001
4002 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4003 {
4004     const unsigned count = m_cols.size();
4005     for ( unsigned n = 0; n < count; n++ )
4006     {
4007         if ( m_cols[n] == column )
4008             return n;
4009     }
4010
4011     return wxNOT_FOUND;
4012 }
4013
4014 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4015                                 unsigned int WXUNUSED(new_pos))
4016 {
4017     // do _not_ reorder m_cols elements here, they should always be in the
4018     // order in which columns were added, we only display the columns in
4019     // different order
4020     m_clientArea->UpdateDisplay();
4021 }
4022
4023 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4024 {
4025     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4026     if (!ret)
4027         return false;
4028
4029     m_cols.Erase(ret);
4030     OnColumnsCountChanged();
4031
4032     return true;
4033 }
4034
4035 bool wxDataViewCtrl::ClearColumns()
4036 {
4037     m_cols.Clear();
4038     OnColumnsCountChanged();
4039     return true;
4040 }
4041
4042 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4043 {
4044     int ret = 0,
4045         dummy = 0;
4046     unsigned int len = GetColumnCount();
4047     for ( unsigned int i = 0; i < len; i++ )
4048     {
4049         wxDataViewColumn * col = GetColumnAt(i);
4050         if (col->IsHidden())
4051             continue;
4052         ret += col->GetWidth();
4053         if (column==col)
4054         {
4055             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4056             break;
4057         }
4058     }
4059     return ret;
4060 }
4061
4062 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4063 {
4064     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4065                                             : GetColumn(m_sortingColumnIdx);
4066 }
4067
4068 // Selection code with wxDataViewItem as parameters
4069 wxDataViewItem wxDataViewCtrl::GetSelection() const
4070 {
4071     return m_clientArea->GetSelection();
4072 }
4073
4074 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4075 {
4076     sel.Empty();
4077     wxDataViewSelection selection = m_clientArea->GetSelections();
4078     int len = selection.GetCount();
4079     for( int i = 0; i < len; i ++)
4080     {
4081         unsigned int row = selection[i];
4082         sel.Add( m_clientArea->GetItemByRow( row ) );
4083     }
4084     return len;
4085 }
4086
4087 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4088 {
4089     wxDataViewSelection selection(wxDataViewSelectionCmp);
4090
4091     wxDataViewItem last_parent;
4092
4093     int len = sel.GetCount();
4094     for( int i = 0; i < len; i ++ )
4095     {
4096         wxDataViewItem item = sel[i];
4097         wxDataViewItem parent = GetModel()->GetParent( item );
4098         if (parent)
4099         {
4100             if (parent != last_parent)
4101                 ExpandAncestors(item);
4102         }
4103
4104         last_parent = parent;
4105         int row = m_clientArea->GetRowByItem( item );
4106         if( row >= 0 )
4107             selection.Add( static_cast<unsigned int>(row) );
4108     }
4109
4110     m_clientArea->SetSelections( selection );
4111 }
4112
4113 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4114 {
4115     ExpandAncestors( item );
4116
4117     int row = m_clientArea->GetRowByItem( item );
4118     if( row >= 0 )
4119     {
4120         // Unselect all rows before select another in the single select mode
4121         if (m_clientArea->IsSingleSel())
4122             m_clientArea->SelectAllRows(false);
4123
4124         m_clientArea->SelectRow(row, true);
4125
4126         // Also set focus to the selected item
4127         m_clientArea->ChangeCurrentRow( row );
4128     }
4129 }
4130
4131 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4132 {
4133     int row = m_clientArea->GetRowByItem( item );
4134     if( row >= 0 )
4135         m_clientArea->SelectRow(row, false);
4136 }
4137
4138 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4139 {
4140     int row = m_clientArea->GetRowByItem( item );
4141     if( row >= 0 )
4142     {
4143         return m_clientArea->IsRowSelected(row);
4144     }
4145     return false;
4146 }
4147
4148 // Selection code with row number as parameter
4149 int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
4150 {
4151     sel.Empty();
4152     wxDataViewSelection selection = m_clientArea->GetSelections();
4153     int len = selection.GetCount();
4154     for( int i = 0; i < len; i ++)
4155     {
4156         unsigned int row = selection[i];
4157         sel.Add( row );
4158     }
4159     return len;
4160 }
4161
4162 void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )
4163 {
4164     wxDataViewSelection selection(wxDataViewSelectionCmp);
4165     int len = sel.GetCount();
4166     for( int i = 0; i < len; i ++ )
4167     {
4168         int row = sel[i];
4169         if( row >= 0 )
4170             selection.Add( static_cast<unsigned int>(row) );
4171     }
4172     m_clientArea->SetSelections( selection );
4173 }
4174
4175 void wxDataViewCtrl::Select( int row )
4176 {
4177     if( row >= 0 )
4178     {
4179         if (m_clientArea->IsSingleSel())
4180             m_clientArea->SelectAllRows(false);
4181         m_clientArea->SelectRow( row, true );
4182     }
4183 }
4184
4185 void wxDataViewCtrl::Unselect( int row )
4186 {
4187     if( row >= 0 )
4188         m_clientArea->SelectRow(row, false);
4189 }
4190
4191 bool wxDataViewCtrl::IsSelected( int row ) const
4192 {
4193     if( row >= 0 )
4194         return m_clientArea->IsRowSelected(row);
4195     return false;
4196 }
4197
4198 void wxDataViewCtrl::SelectRange( int from, int to )
4199 {
4200     wxArrayInt sel;
4201     for( int i = from; i < to; i ++ )
4202         sel.Add( i );
4203     m_clientArea->Select(sel);
4204 }
4205
4206 void wxDataViewCtrl::UnselectRange( int from, int to )
4207 {
4208     wxDataViewSelection sel = m_clientArea->GetSelections();
4209     for( int i = from; i < to; i ++ )
4210         if( sel.Index( i ) != wxNOT_FOUND )
4211             sel.Remove( i );
4212     m_clientArea->SetSelections(sel);
4213 }
4214
4215 void wxDataViewCtrl::SelectAll()
4216 {
4217     m_clientArea->SelectAllRows(true);
4218 }
4219
4220 void wxDataViewCtrl::UnselectAll()
4221 {
4222     m_clientArea->SelectAllRows(false);
4223 }
4224
4225 void wxDataViewCtrl::EnsureVisible( int row, int column )
4226 {
4227     if( row < 0 )
4228         row = 0;
4229     if( row > (int) m_clientArea->GetRowCount() )
4230         row = m_clientArea->GetRowCount();
4231
4232     int first = m_clientArea->GetFirstVisibleRow();
4233     int last = m_clientArea->GetLastVisibleRow();
4234     if( row < first )
4235         m_clientArea->ScrollTo( row, column );
4236     else if( row > last )
4237         m_clientArea->ScrollTo( row - last + first, column );
4238     else
4239         m_clientArea->ScrollTo( first, column );
4240 }
4241
4242 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4243 {
4244     ExpandAncestors( item );
4245
4246     m_clientArea->RecalculateDisplay();
4247
4248     int row = m_clientArea->GetRowByItem(item);
4249     if( row >= 0 )
4250     {
4251         if( column == NULL )
4252             EnsureVisible(row, -1);
4253         else
4254             EnsureVisible( row, GetColumnIndex(column) );
4255     }
4256
4257 }
4258
4259 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4260                               wxDataViewColumn* &column ) const
4261 {
4262     m_clientArea->HitTest(point, item, column);
4263 }
4264
4265 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4266                                     const wxDataViewColumn* column ) const
4267 {
4268     return m_clientArea->GetItemRect(item, column);
4269 }
4270
4271 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4272 {
4273     return m_clientArea->GetItemByRow( row );
4274 }
4275
4276 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4277 {
4278     return m_clientArea->GetRowByItem( item );
4279 }
4280
4281 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4282 {
4283     int row = m_clientArea->GetRowByItem( item );
4284     if (row != -1)
4285         m_clientArea->Expand(row);
4286 }
4287
4288 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4289 {
4290     int row = m_clientArea->GetRowByItem( item );
4291     if (row != -1)
4292         m_clientArea->Collapse(row);
4293 }
4294
4295 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4296 {
4297     int row = m_clientArea->GetRowByItem( item );
4298     if (row != -1)
4299         return m_clientArea->IsExpanded(row);
4300     return false;
4301 }
4302
4303 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4304 {
4305     wxDataViewColumn* col = GetColumn( column );
4306     if (!col)
4307         return;
4308
4309     wxRect itemRect = GetItemRect(item, col);
4310     wxDataViewRenderer* renderer = col->GetRenderer();
4311     renderer->StartEditing(item, itemRect);
4312 }
4313
4314 #endif // !wxUSE_GENERICDATAVIEWCTRL
4315
4316 #endif // wxUSE_DATAVIEWCTRL