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 implements, both the leaf nodes and the nodes are sorted for fast search when needed
  74 static wxDataViewModel * g_model;
  75 static int g_column = -2;
  76 static bool g_asending = true;
  77
  78 //-----------------------------------------------------------------------------
  79 // wxDataViewHeaderWindow
  80 //-----------------------------------------------------------------------------
  81
  82 class wxDataViewHeaderWindow : public wxHeaderCtrl
  83 {
  84 public:
  85     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
  86         : wxHeaderCtrl(parent)
  87     {
  88     }
  89
  90     wxDataViewCtrl *GetOwner() const
  91         { return static_cast<wxDataViewCtrl *>(GetParent()); }
  92
  93 protected:
  94     // implement/override wxHeaderCtrl functions by forwarding them to the main
  95     // control
  96     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
  97     {
  98         return *(GetOwner()->GetColumn(idx));
  99     }
 100
 101     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 102     {
 103         wxDataViewCtrl * const owner = GetOwner();
 104
 105         int widthContents = owner->GetBestColumnWidth(idx);
 106         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 107         owner->OnColumnChange(idx);
 108
 109         return true;
 110     }
 111
 112 private:
 113     bool SendEvent(wxEventType type, unsigned int n)
 114     {
 115         wxDataViewCtrl * const owner = GetOwner();
 116         wxDataViewEvent event(type, owner->GetId());
 117
 118         event.SetEventObject(owner);
 119         event.SetColumn(n);
 120         event.SetDataViewColumn(owner->GetColumn(n));
 121         event.SetModel(owner->GetModel());
 122
 123         // for events created by wxDataViewHeaderWindow the
 124         // row / value fields are not valid
 125         return owner->GetEventHandler()->ProcessEvent(event);
 126     }
 127
 128     void OnClick(wxHeaderCtrlEvent& event)
 129     {
 130         const unsigned idx = event.GetColumn();
 131
 132         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 133             return;
 134
 135         // default handling for the column click is to sort by this column or
 136         // toggle its sort order
 137         wxDataViewCtrl * const owner = GetOwner();
 138         wxDataViewColumn * const col = owner->GetColumn(idx);
 139         if ( !col->IsSortable() )
 140         {
 141             // no default handling for non-sortable columns
 142             event.Skip();
 143             return;
 144         }
 145
 146         if ( col->IsSortKey() )
 147         {
 148             // already using this column for sorting, just change the order
 149             col->ToggleSortOrder();
 150         }
 151         else // not using this column for sorting yet
 152         {
 153             // first unset the old sort column if any
 154             int oldSortKey = owner->GetSortingColumnIndex();
 155             if ( oldSortKey != wxNOT_FOUND )
 156             {
 157                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 158                 owner->OnColumnChange(oldSortKey);
 159             }
 160
 161             owner->SetSortingColumnIndex(idx);
 162             col->SetAsSortKey();
 163         }
 164
 165         wxDataViewModel * const model = owner->GetModel();
 166         if ( model )
 167             model->Resort();
 168
 169         owner->OnColumnChange(idx);
 170     }
 171
 172     void OnRClick(wxHeaderCtrlEvent& event)
 173     {
 174         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 175                         event.GetColumn()) )
 176             event.Skip();
 177     }
 178
 179     void OnEndResize(wxHeaderCtrlEvent& event)
 180     {
 181         wxDataViewCtrl * const owner = GetOwner();
 182
 183         const unsigned col = event.GetColumn();
 184         owner->GetColumn(col)->SetWidth(event.GetWidth());
 185         GetOwner()->OnColumnChange(col);
 186     }
 187
 188     void OnEndReorder(wxHeaderCtrlEvent& event)
 189     {
 190         wxDataViewCtrl * const owner = GetOwner();
 191         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 192                            event.GetNewOrder());
 193     }
 194
 195     DECLARE_EVENT_TABLE()
 196     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 197 };
 198
 199 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 200     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 201     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 202
 203     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnEndResize)
 204
 205     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 206 END_EVENT_TABLE()
 207
 208 //-----------------------------------------------------------------------------
 209 // wxDataViewRenameTimer
 210 //-----------------------------------------------------------------------------
 211
 212 class wxDataViewRenameTimer: public wxTimer
 213 {
 214 private:
 215     wxDataViewMainWindow *m_owner;
 216
 217 public:
 218     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 219     void Notify();
 220 };
 221
 222 //-----------------------------------------------------------------------------
 223 // wxDataViewTreeNode
 224 //-----------------------------------------------------------------------------
 225 class wxDataViewTreeNode;
 226 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 227 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 228
 229 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2);
 230 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 231
 232 class wxDataViewTreeNode
 233 {
 234 public:
 235     wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
 236     {
 237         m_parent = parent;
 238         if (!parent)
 239             m_open = true;
 240         else
 241             m_open = false;
 242         m_hasChildren = false;
 243         m_subTreeCount  = 0;
 244     }
 245
 246     ~wxDataViewTreeNode()
 247     {
 248     }
 249
 250     wxDataViewTreeNode * GetParent() const { return m_parent; }
 251     void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
 252     wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
 253     wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
 254
 255     void AddNode( wxDataViewTreeNode * node )
 256     {
 257         m_leaves.Add( node->GetItem().GetID() );
 258         if (g_column >= -1)
 259             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 260         m_nodes.Add( node );
 261         if (g_column >= -1)
 262             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 263     }
 264     void AddLeaf( void * leaf )
 265     {
 266         m_leaves.Add( leaf );
 267         if (g_column >= -1)
 268             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 269     }
 270
 271     wxDataViewItem & GetItem() { return m_item; }
 272     const wxDataViewItem & GetItem() const { return m_item; }
 273     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 274
 275     unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
 276     unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
 277     int GetIndentLevel() const
 278     {
 279         int ret = 0;
 280         const wxDataViewTreeNode * node = this;
 281         while( node->GetParent()->GetParent() != NULL )
 282         {
 283             node = node->GetParent();
 284             ret ++;
 285         }
 286         return ret;
 287     }
 288
 289     bool IsOpen() const
 290     {
 291         return m_open;
 292     }
 293
 294     void ToggleOpen()
 295     {
 296         int len = m_nodes.GetCount();
 297         int sum = 0;
 298         for ( int i = 0;i < len; i ++)
 299             sum += m_nodes[i]->GetSubTreeCount();
 300
 301         sum += m_leaves.GetCount();
 302         if (m_open)
 303         {
 304             ChangeSubTreeCount(-sum);
 305             m_open = !m_open;
 306         }
 307         else
 308         {
 309             m_open = !m_open;
 310             ChangeSubTreeCount(sum);
 311         }
 312     }
 313     bool HasChildren() const { return m_hasChildren; }
 314     void SetHasChildren( bool has ){ m_hasChildren = has; }
 315
 316     void SetSubTreeCount( int num ) { m_subTreeCount = num; }
 317     int GetSubTreeCount() const { return m_subTreeCount; }
 318     void ChangeSubTreeCount( int num )
 319     {
 320         if( !m_open )
 321             return;
 322         m_subTreeCount += num;
 323         if( m_parent )
 324             m_parent->ChangeSubTreeCount(num);
 325     }
 326
 327     void Resort()
 328     {
 329         if (g_column >= -1)
 330         {
 331             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 332             int len = m_nodes.GetCount();
 333             for (int i = 0; i < len; i ++)
 334                 m_nodes[i]->Resort();
 335             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 336         }
 337     }
 338
 339 private:
 340     wxDataViewTreeNode  *m_parent;
 341     wxDataViewTreeNodes  m_nodes;
 342     wxDataViewTreeLeaves m_leaves;
 343     wxDataViewItem       m_item;
 344     bool                 m_open;
 345     bool                 m_hasChildren;
 346     int                  m_subTreeCount;
 347 };
 348
 349 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2)
 350 {
 351     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 352 }
 353
 354 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 355 {
 356     return g_model->Compare( *id1, *id2, g_column, g_asending );
 357 }
 358
 359
 360
 361 //-----------------------------------------------------------------------------
 362 // wxDataViewMainWindow
 363 //-----------------------------------------------------------------------------
 364
 365 WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,
 366                                             WXDLLIMPEXP_ADV);
 367 WX_DECLARE_LIST(wxDataViewItem, ItemList);
 368 WX_DEFINE_LIST(ItemList)
 369
 370 class wxDataViewMainWindow: public wxWindow
 371 {
 372 public:
 373     wxDataViewMainWindow( wxDataViewCtrl *parent,
 374                             wxWindowID id,
 375                             const wxPoint &pos = wxDefaultPosition,
 376                             const wxSize &size = wxDefaultSize,
 377                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 378     virtual ~wxDataViewMainWindow();
 379
 380     bool IsVirtualList() const { return m_root == NULL; }
 381
 382     // notifications from wxDataViewModel
 383     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 384     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 385     bool ItemChanged( const wxDataViewItem &item );
 386     bool ValueChanged( const wxDataViewItem &item, unsigned int col );
 387     bool Cleared();
 388     void Resort()
 389     {
 390         if (!IsVirtualList())
 391         {
 392             SortPrepare();
 393             m_root->Resort();
 394         }
 395         UpdateDisplay();
 396     }
 397
 398     void SortPrepare()
 399     {
 400         g_model = GetOwner()->GetModel();
 401         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 402         if( !col )
 403         {
 404             if (g_model->HasDefaultCompare())
 405                 g_column = -1;
 406             else
 407                 g_column = -2;
 408
 409             g_asending = true;
 410             return;
 411         }
 412         g_column = col->GetModelColumn();
 413         g_asending = col->IsSortOrderAscending();
 414     }
 415
 416     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 417     wxDataViewCtrl *GetOwner() { return m_owner; }
 418     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 419
 420 #if wxUSE_DRAG_AND_DROP
 421     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 422 #endif // wxUSE_DRAG_AND_DROP
 423     void OnPaint( wxPaintEvent &event );
 424     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 425     void OnChar( wxKeyEvent &event );
 426     void OnMouse( wxMouseEvent &event );
 427     void OnSetFocus( wxFocusEvent &event );
 428     void OnKillFocus( wxFocusEvent &event );
 429
 430     void UpdateDisplay();
 431     void RecalculateDisplay();
 432     void OnInternalIdle();
 433
 434     void OnRenameTimer();
 435
 436     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 437     void ScrollTo( int rows, int column );
 438
 439     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 440     void ChangeCurrentRow( unsigned int row );
 441
 442     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 443     bool IsEmpty() { return GetRowCount() == 0; }
 444
 445     int GetCountPerPage() const;
 446     int GetEndOfLastCol() const;
 447     unsigned int GetFirstVisibleRow() const;
 448     //I change this method to un const because in the tree view, the displaying number of the tree are changing along with the expanding/collapsing of the tree nodes
 449     unsigned int GetLastVisibleRow();
 450     unsigned int GetRowCount();
 451
 452     wxDataViewItem GetSelection() const;
 453     wxDataViewSelection GetSelections(){ return m_selection; }
 454     void SetSelections( const wxDataViewSelection & sel ) { m_selection = sel; UpdateDisplay(); }
 455     void Select( const wxArrayInt& aSelections );
 456     void SelectAllRows( bool on );
 457     void SelectRow( unsigned int row, bool on );
 458     void SelectRows( unsigned int from, unsigned int to, bool on );
 459     void ReverseRowSelection( unsigned int row );
 460     bool IsRowSelected( unsigned int row );
 461     void SendSelectionChangedEvent( const wxDataViewItem& item);
 462
 463     void RefreshRow( unsigned int row );
 464     void RefreshRows( unsigned int from, unsigned int to );
 465     void RefreshRowsAfter( unsigned int firstRow );
 466
 467     // returns the colour to be used for drawing the rules
 468     wxColour GetRuleColour() const
 469     {
 470         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 471     }
 472
 473     wxRect GetLineRect( unsigned int row ) const;
 474
 475     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 476     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 477     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 478
 479     //Some useful functions for row and item mapping
 480     wxDataViewItem GetItemByRow( unsigned int row ) const;
 481     int GetRowByItem( const wxDataViewItem & item ) const;
 482
 483     //Methods for building the mapping tree
 484     void BuildTree( wxDataViewModel  * model );
 485     void DestroyTree();
 486     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 487     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 488
 489     void Expand( unsigned int row ) { OnExpanding( row ); }
 490     void Collapse( unsigned int row ) { OnCollapsing( row ); }
 491     bool IsExpanded( unsigned int row ) const;
 492
 493 #if wxUSE_DRAG_AND_DROP
 494     bool EnableDragSource( const wxDataFormat &format );
 495     bool EnableDropTarget( const wxDataFormat &format );
 496
 497     void RemoveDropHint();
 498     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 499     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 500     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 501     void OnLeave();
 502 #endif // wxUSE_DRAG_AND_DROP
 503
 504 private:
 505     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 506     //We did not need this temporarily
 507     //wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 508
 509     int RecalculateCount();
 510
 511     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 512     void OnExpanding( unsigned int row );
 513     void OnCollapsing( unsigned int row );
 514
 515     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 516
 517 private:
 518     wxDataViewCtrl             *m_owner;
 519     int                         m_lineHeight;
 520     bool                        m_dirty;
 521
 522     wxDataViewColumn           *m_currentCol;
 523     unsigned int                m_currentRow;
 524     wxDataViewSelection         m_selection;
 525
 526     wxDataViewRenameTimer      *m_renameTimer;
 527     bool                        m_lastOnSame;
 528
 529     bool                        m_hasFocus;
 530
 531 #if wxUSE_DRAG_AND_DROP
 532     int                         m_dragCount;
 533     wxPoint                     m_dragStart;
 534
 535     bool                        m_dragEnabled;
 536     wxDataFormat                m_dragFormat;
 537
 538     bool                        m_dropEnabled;
 539     wxDataFormat                m_dropFormat;
 540     bool                        m_dropHint;
 541     unsigned int                m_dropHintLine;
 542 #endif // wxUSE_DRAG_AND_DROP
 543
 544     // for double click logic
 545     unsigned int m_lineLastClicked,
 546            m_lineBeforeLastClicked,
 547            m_lineSelectSingleOnUp;
 548
 549     // the pen used to draw horiz/vertical rules
 550     wxPen m_penRule;
 551
 552     // the pen used to draw the expander and the lines
 553     wxPen m_penExpander;
 554
 555     //This is the tree structure of the model
 556     wxDataViewTreeNode * m_root;
 557     int m_count;
 558     //This is the tree node under the cursor
 559     wxDataViewTreeNode * m_underMouse;
 560 private:
 561     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 562     DECLARE_EVENT_TABLE()
 563 };
 564
 565 // ---------------------------------------------------------
 566 // wxGenericDataViewModelNotifier
 567 // ---------------------------------------------------------
 568
 569 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 570 {
 571 public:
 572     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 573         { m_mainWindow = mainWindow; }
 574
 575     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 576         { return m_mainWindow->ItemAdded( parent , item ); }
 577     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 578         { return m_mainWindow->ItemDeleted( parent, item ); }
 579     virtual bool ItemChanged( const wxDataViewItem & item )
 580         { return m_mainWindow->ItemChanged(item);  }
 581     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 582         { return m_mainWindow->ValueChanged( item, col ); }
 583     virtual bool Cleared()
 584         { return m_mainWindow->Cleared(); }
 585     virtual void Resort()
 586          { m_mainWindow->Resort(); }
 587
 588     wxDataViewMainWindow    *m_mainWindow;
 589 };
 590
 591 // ---------------------------------------------------------
 592 // wxDataViewRenderer
 593 // ---------------------------------------------------------
 594
 595 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 596
 597 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 598                                         wxDataViewCellMode mode,
 599                                         int align) :
 600     wxDataViewRendererBase( varianttype, mode, align )
 601 {
 602     m_dc = NULL;
 603     m_align = align;
 604     m_mode = mode;
 605     m_wantsAttr = false;
 606     m_hasAttr = false;
 607 }
 608
 609 wxDataViewRenderer::~wxDataViewRenderer()
 610 {
 611     if (m_dc)
 612         delete m_dc;
 613 }
 614
 615 wxDC *wxDataViewRenderer::GetDC()
 616 {
 617     if (m_dc == NULL)
 618     {
 619         if (GetOwner() == NULL)
 620             return NULL;
 621         if (GetOwner()->GetOwner() == NULL)
 622             return NULL;
 623         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 624     }
 625
 626     return m_dc;
 627 }
 628
 629 void wxDataViewRenderer::SetAlignment( int align )
 630 {
 631     m_align=align;
 632 }
 633
 634 int wxDataViewRenderer::GetAlignment() const
 635 {
 636     return m_align;
 637 }
 638
 639 int wxDataViewRenderer::CalculateAlignment() const
 640 {
 641     if (m_align == wxDVR_DEFAULT_ALIGNMENT)
 642     {
 643         if (GetOwner() == NULL)
 644            return wxALIGN_LEFT | wxALIGN_CENTRE_VERTICAL;
 645
 646         return GetOwner()->GetAlignment() | wxALIGN_CENTRE_VERTICAL;
 647     }
 648
 649     return m_align;
 650 }
 651
 652 // ---------------------------------------------------------
 653 // wxDataViewCustomRenderer
 654 // ---------------------------------------------------------
 655
 656 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 657
 658 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 659                           wxDataViewCellMode mode, int align ) :
 660     wxDataViewRenderer( varianttype, mode, align )
 661 {
 662 }
 663
 664 void wxDataViewCustomRenderer::RenderText( const wxString &text, int xoffset, wxRect cell, wxDC *dc, int state )
 665 {
 666     wxDataViewCtrl *view = GetOwner()->GetOwner();
 667     wxColour col = (state & wxDATAVIEW_CELL_SELECTED) ?
 668                         wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) :
 669                         view->GetForegroundColour();
 670     dc->SetTextForeground(col);
 671     dc->DrawText( text, cell.x + xoffset, cell.y + ((cell.height - dc->GetCharHeight()) / 2));
 672 }
 673
 674 // ---------------------------------------------------------
 675 // wxDataViewTextRenderer
 676 // ---------------------------------------------------------
 677
 678 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewCustomRenderer)
 679
 680 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 681                                                 wxDataViewCellMode mode, int align ) :
 682     wxDataViewCustomRenderer( varianttype, mode, align )
 683 {
 684 }
 685
 686 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 687 {
 688     m_text = value.GetString();
 689
 690     return true;
 691 }
 692
 693 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 694 {
 695     return false;
 696 }
 697
 698 bool wxDataViewTextRenderer::HasEditorCtrl()
 699 {
 700     return true;
 701 }
 702
 703 wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 704         wxRect labelRect, const wxVariant &value )
 705 {
 706     return new wxTextCtrl( parent, wxID_ANY, value,
 707                            wxPoint(labelRect.x,labelRect.y),
 708                            wxSize(labelRect.width,labelRect.height) );
 709 }
 710
 711 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )
 712 {
 713     wxTextCtrl *text = (wxTextCtrl*) editor;
 714     value = text->GetValue();
 715     return true;
 716 }
 717
 718 bool wxDataViewTextRenderer::Render( wxRect cell, wxDC *dc, int state )
 719 {
 720     RenderText( m_text, 0, cell, dc, state );
 721     return true;
 722 }
 723
 724 wxSize wxDataViewTextRenderer::GetSize() const
 725 {
 726     const wxDataViewCtrl *view = GetView();
 727     if (!m_text.empty())
 728     {
 729         int x,y;
 730         view->GetTextExtent( m_text, &x, &y );
 731         return wxSize( x, y );
 732     }
 733     return wxSize(80,20);
 734 }
 735
 736 // ---------------------------------------------------------
 737 // wxDataViewTextRendererAttr
 738 // ---------------------------------------------------------
 739
 740 IMPLEMENT_CLASS(wxDataViewTextRendererAttr, wxDataViewTextRenderer)
 741
 742 wxDataViewTextRendererAttr::wxDataViewTextRendererAttr( const wxString &varianttype,
 743                             wxDataViewCellMode mode, int align ) :
 744     wxDataViewTextRenderer( varianttype, mode, align )
 745 {
 746     m_wantsAttr = true;
 747 }
 748
 749 bool wxDataViewTextRendererAttr::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 750 {
 751     wxFont font;
 752     wxColour colour;
 753
 754     if (m_hasAttr)
 755     {
 756         if (m_attr.HasColour())
 757         {
 758             colour = dc->GetTextForeground();
 759             dc->SetTextForeground( m_attr.GetColour() );
 760         }
 761
 762         if (m_attr.GetBold() || m_attr.GetItalic())
 763         {
 764              font = dc->GetFont();
 765              wxFont myfont = font;
 766              if (m_attr.GetBold())
 767                  myfont.SetWeight( wxFONTWEIGHT_BOLD );
 768              if (m_attr.GetItalic())
 769                  myfont.SetStyle( wxFONTSTYLE_ITALIC );
 770              dc->SetFont( myfont );
 771         }
 772     }
 773
 774     dc->DrawText( m_text, cell.x, cell.y + ((cell.height - dc->GetCharHeight()) / 2));
 775
 776     // restore dc
 777     if (m_hasAttr)
 778     {
 779         if (m_attr.HasColour())
 780             dc->SetTextForeground( colour );
 781
 782         if (m_attr.GetBold() || m_attr.GetItalic())
 783             dc->SetFont( font );
 784     }
 785
 786     return true;
 787 }
 788
 789
 790 // ---------------------------------------------------------
 791 // wxDataViewBitmapRenderer
 792 // ---------------------------------------------------------
 793
 794 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewCustomRenderer)
 795
 796 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 797                                                     wxDataViewCellMode mode, int align ) :
 798     wxDataViewCustomRenderer( varianttype, mode, align )
 799 {
 800 }
 801
 802 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 803 {
 804     if (value.GetType() == wxT("wxBitmap"))
 805         m_bitmap << value;
 806     if (value.GetType() == wxT("wxIcon"))
 807         m_icon << value;
 808
 809     return true;
 810 }
 811
 812 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 813 {
 814     return false;
 815 }
 816
 817 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 818 {
 819     if (m_bitmap.Ok())
 820         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 821     else if (m_icon.Ok())
 822         dc->DrawIcon( m_icon, cell.x, cell.y );
 823
 824     return true;
 825 }
 826
 827 wxSize wxDataViewBitmapRenderer::GetSize() const
 828 {
 829     if (m_bitmap.Ok())
 830         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 831     else if (m_icon.Ok())
 832         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 833
 834     return wxSize(16,16);
 835 }
 836
 837 // ---------------------------------------------------------
 838 // wxDataViewToggleRenderer
 839 // ---------------------------------------------------------
 840
 841 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewCustomRenderer)
 842
 843 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 844                         wxDataViewCellMode mode, int align ) :
 845     wxDataViewCustomRenderer( varianttype, mode, align )
 846 {
 847     m_toggle = false;
 848 }
 849
 850 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 851 {
 852     m_toggle = value.GetBool();
 853
 854     return true;
 855 }
 856
 857 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 858 {
 859     return false;
 860 }
 861
 862 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 863 {
 864     // User wxRenderer here
 865
 866     wxRect rect;
 867     rect.x = cell.x + cell.width/2 - 10;
 868     rect.width = 20;
 869     rect.y = cell.y + cell.height/2 - 10;
 870     rect.height = 20;
 871
 872     int flags = 0;
 873     if (m_toggle)
 874         flags |= wxCONTROL_CHECKED;
 875     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE)
 876         flags |= wxCONTROL_DISABLED;
 877
 878     wxRendererNative::Get().DrawCheckBox(
 879             GetOwner()->GetOwner(),
 880             *dc,
 881             rect,
 882             flags );
 883
 884     return true;
 885 }
 886
 887 bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),
 888                                          wxDataViewModel *model,
 889                                          const wxDataViewItem & item, unsigned int col)
 890 {
 891     bool value = !m_toggle;
 892     wxVariant variant = value;
 893     model->SetValue( variant, item, col);
 894     model->ValueChanged( item, col );
 895     return true;
 896 }
 897
 898 wxSize wxDataViewToggleRenderer::GetSize() const
 899 {
 900     return wxSize(20,20);
 901 }
 902
 903 // ---------------------------------------------------------
 904 // wxDataViewProgressRenderer
 905 // ---------------------------------------------------------
 906
 907 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewCustomRenderer)
 908
 909 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 910     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 911     wxDataViewCustomRenderer( varianttype, mode, align )
 912 {
 913     m_label = label;
 914     m_value = 0;
 915 }
 916
 917 wxDataViewProgressRenderer::~wxDataViewProgressRenderer()
 918 {
 919 }
 920
 921 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 922 {
 923     m_value = (long) value;
 924
 925     if (m_value < 0) m_value = 0;
 926     if (m_value > 100) m_value = 100;
 927
 928     return true;
 929 }
 930
 931 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 932 {
 933     value = (long) m_value;
 934     return true;
 935 }
 936
 937 bool wxDataViewProgressRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 938 {
 939     double pct = (double)m_value / 100.0;
 940     wxRect bar = cell;
 941     bar.width = (int)(cell.width * pct);
 942     dc->SetPen( *wxTRANSPARENT_PEN );
 943     dc->SetBrush( *wxBLUE_BRUSH );
 944     dc->DrawRectangle( bar );
 945
 946     dc->SetBrush( *wxTRANSPARENT_BRUSH );
 947     dc->SetPen( *wxBLACK_PEN );
 948     dc->DrawRectangle( cell );
 949
 950     return true;
 951 }
 952
 953 wxSize wxDataViewProgressRenderer::GetSize() const
 954 {
 955     return wxSize(40,12);
 956 }
 957
 958 // ---------------------------------------------------------
 959 // wxDataViewDateRenderer
 960 // ---------------------------------------------------------
 961
 962 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
 963
 964 #if wxUSE_DATE_RENDERER_POPUP
 965
 966 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 967 {
 968 public:
 969     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
 970         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
 971         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
 972         m_item( item )
 973     {
 974         m_model = model;
 975         m_col = col;
 976         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
 977         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
 978         sizer->Add( m_cal, 1, wxGROW );
 979         SetSizer( sizer );
 980         sizer->Fit( this );
 981     }
 982
 983     void OnCalendar( wxCalendarEvent &event );
 984
 985     wxCalendarCtrl      *m_cal;
 986     wxDataViewModel *m_model;
 987     unsigned int               m_col;
 988     const wxDataViewItem &   m_item;
 989
 990 protected:
 991     virtual void OnDismiss()
 992     {
 993     }
 994
 995 private:
 996     DECLARE_EVENT_TABLE()
 997 };
 998
 999 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
1000     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
1001 END_EVENT_TABLE()
1002
1003 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
1004 {
1005     wxDateTime date = event.GetDate();
1006     wxVariant value = date;
1007     m_model->SetValue( value, m_item, m_col );
1008     m_model->ValueChanged( m_item, m_col );
1009     DismissAndNotify();
1010 }
1011
1012 #endif // wxUSE_DATE_RENDERER_POPUP
1013
1014 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewCustomRenderer)
1015
1016 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
1017                         wxDataViewCellMode mode, int align ) :
1018     wxDataViewCustomRenderer( varianttype, mode, align )
1019 {
1020 }
1021
1022 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
1023 {
1024     m_date = value.GetDateTime();
1025
1026     return true;
1027 }
1028
1029 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
1030 {
1031     value = m_date;
1032     return true;
1033 }
1034
1035 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
1036 {
1037     wxString tmp = m_date.FormatDate();
1038     RenderText( tmp, 0, cell, dc, state );
1039     return true;
1040 }
1041
1042 wxSize wxDataViewDateRenderer::GetSize() const
1043 {
1044     const wxDataViewCtrl* view = GetView();
1045     wxString tmp = m_date.FormatDate();
1046     wxCoord x,y,d;
1047     view->GetTextExtent( tmp, &x, &y, &d );
1048     return wxSize(x,y+d);
1049 }
1050
1051 bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,
1052                                        const wxDataViewItem & item, unsigned int col )
1053 {
1054     wxVariant variant;
1055     model->GetValue( variant, item, col );
1056     wxDateTime value = variant.GetDateTime();
1057
1058 #if wxUSE_DATE_RENDERER_POPUP
1059     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
1060         GetOwner()->GetOwner()->GetParent(), &value, model, item, col);
1061     wxPoint pos = wxGetMousePosition();
1062     popup->Move( pos );
1063     popup->Layout();
1064     popup->Popup( popup->m_cal );
1065 #else // !wxUSE_DATE_RENDERER_POPUP
1066     wxMessageBox(value.Format());
1067 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
1068     return true;
1069 }
1070
1071 // ---------------------------------------------------------
1072 // wxDataViewIconTextRenderer
1073 // ---------------------------------------------------------
1074
1075 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewCustomRenderer)
1076
1077 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1078   const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1079     wxDataViewCustomRenderer( varianttype, mode, align )
1080 {
1081     SetMode(mode);
1082     SetAlignment(align);
1083 }
1084
1085 wxDataViewIconTextRenderer::~wxDataViewIconTextRenderer()
1086 {
1087 }
1088
1089 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1090 {
1091     m_value << value;
1092     return true;
1093 }
1094
1095 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1096 {
1097     return false;
1098 }
1099
1100 bool wxDataViewIconTextRenderer::Render( wxRect cell, wxDC *dc, int state )
1101 {
1102     int xoffset = 0;
1103     const wxIcon &icon = m_value.GetIcon();
1104     if (icon.IsOk())
1105     {
1106         dc->DrawIcon( icon, cell.x, cell.y + ((cell.height - icon.GetHeight()) / 2));
1107         xoffset =  icon.GetWidth()+4;
1108     }
1109
1110     RenderText( m_value.GetText(), xoffset, cell, dc, state );
1111
1112     return true;
1113 }
1114
1115 wxSize wxDataViewIconTextRenderer::GetSize() const
1116 {
1117     const wxDataViewCtrl *view = GetView();
1118     if (!m_value.GetText().empty())
1119     {
1120         int x,y;
1121         view->GetTextExtent( m_value.GetText(), &x, &y );
1122
1123         if (m_value.GetIcon().IsOk())
1124             x += m_value.GetIcon().GetWidth() + 4;
1125         return wxSize( x, y );
1126     }
1127     return wxSize(80,20);
1128 }
1129
1130 wxControl *
1131 wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow * WXUNUSED(parent),
1132                                              wxRect WXUNUSED(labelRect),
1133                                              const wxVariant& WXUNUSED(value))
1134 {
1135     return NULL;
1136 }
1137
1138 bool
1139 wxDataViewIconTextRenderer::GetValueFromEditorCtrl(wxControl* WXUNUSED(editor),
1140                                                    wxVariant& WXUNUSED(value))
1141 {
1142     return false;
1143 }
1144
1145 //-----------------------------------------------------------------------------
1146 // wxDataViewDropTarget
1147 //-----------------------------------------------------------------------------
1148
1149 #if wxUSE_DRAG_AND_DROP
1150
1151 class wxBitmapCanvas: public wxWindow
1152 {
1153 public:
1154     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1155        wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1156     {
1157         m_bitmap = bitmap;
1158         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1159     }
1160
1161     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1162     {
1163         wxPaintDC dc(this);
1164         dc.DrawBitmap( m_bitmap, 0, 0);
1165     }
1166
1167     wxBitmap m_bitmap;
1168 };
1169
1170 class wxDataViewDropSource: public wxDropSource
1171 {
1172 public:
1173     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1174          wxDropSource( win )
1175     {
1176         m_win = win;
1177         m_row = row;
1178         m_hint = NULL;
1179     }
1180
1181     ~wxDataViewDropSource()
1182     {
1183         delete m_hint;
1184     }
1185
1186     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1187     {
1188         wxPoint pos = wxGetMousePosition();
1189
1190         if (!m_hint)
1191         {
1192             int liney = m_win->GetLineStart( m_row );
1193             int linex = 0;
1194             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1195             m_win->ClientToScreen( &linex, &liney );
1196             m_dist_x = pos.x - linex;
1197             m_dist_y = pos.y - liney;
1198
1199             int indent = 0;
1200             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1201             m_dist_x -= indent;
1202             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1203                                          wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1204                                          ib.GetSize(),
1205                                          wxFRAME_TOOL_WINDOW |
1206                                          wxFRAME_FLOAT_ON_PARENT |
1207                                          wxFRAME_NO_TASKBAR |
1208                                          wxNO_BORDER );
1209             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1210             m_hint->Show();
1211         }
1212         else
1213         {
1214             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1215             m_hint->SetTransparent( 128 );
1216         }
1217
1218         return false;
1219     }
1220
1221     wxDataViewMainWindow   *m_win;
1222     unsigned int            m_row;
1223     wxFrame                *m_hint;
1224     int m_dist_x,m_dist_y;
1225 };
1226
1227
1228 class wxDataViewDropTarget: public wxDropTarget
1229 {
1230 public:
1231     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1232         wxDropTarget( obj )
1233     {
1234         m_win = win;
1235     }
1236
1237     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1238         {
1239            wxDataFormat format = GetMatchingPair();
1240            if (format == wxDF_INVALID)
1241               return wxDragNone;
1242            return m_win->OnDragOver( format, x, y, def);
1243         }
1244
1245     virtual bool OnDrop( wxCoord x, wxCoord y )
1246         {
1247            wxDataFormat format = GetMatchingPair();
1248            if (format == wxDF_INVALID)
1249               return false;
1250            return m_win->OnDrop( format, x, y );
1251         }
1252
1253     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1254         {
1255            wxDataFormat format = GetMatchingPair();
1256            if (format == wxDF_INVALID)
1257               return wxDragNone;
1258            if (!GetData())
1259               return wxDragNone;
1260            return m_win->OnData( format, x, y, def );
1261         }
1262
1263     virtual void OnLeave()
1264         { m_win->OnLeave(); }
1265
1266     wxDataViewMainWindow   *m_win;
1267 };
1268
1269 #endif // wxUSE_DRAG_AND_DROP
1270
1271 //-----------------------------------------------------------------------------
1272 // wxDataViewRenameTimer
1273 //-----------------------------------------------------------------------------
1274
1275 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1276 {
1277     m_owner = owner;
1278 }
1279
1280 void wxDataViewRenameTimer::Notify()
1281 {
1282     m_owner->OnRenameTimer();
1283 }
1284
1285 //-----------------------------------------------------------------------------
1286 // wxDataViewMainWindow
1287 //-----------------------------------------------------------------------------
1288
1289 //The tree building helper, declared firstly
1290 static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node);
1291
1292 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1293 {
1294     if (row1 > row2) return 1;
1295     if (row1 == row2) return 0;
1296     return -1;
1297 }
1298
1299
1300 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1301
1302 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1303     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1304     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1305     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1306     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1307     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1308 END_EVENT_TABLE()
1309
1310 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1311     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1312     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1313     m_selection( wxDataViewSelectionCmp )
1314
1315 {
1316     SetOwner( parent );
1317
1318     m_lastOnSame = false;
1319     m_renameTimer = new wxDataViewRenameTimer( this );
1320
1321     // TODO: user better initial values/nothing selected
1322     m_currentCol = NULL;
1323     m_currentRow = 0;
1324
1325     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1326
1327 #if wxUSE_DRAG_AND_DROP
1328     m_dragCount = 0;
1329     m_dragStart = wxPoint(0,0);
1330
1331     m_dragEnabled = false;
1332     m_dropEnabled = false;
1333     m_dropHint = false;
1334     m_dropHintLine = (unsigned int) -1;
1335 #endif // wxUSE_DRAG_AND_DROP
1336
1337     m_lineLastClicked = (unsigned int) -1;
1338     m_lineBeforeLastClicked = (unsigned int) -1;
1339     m_lineSelectSingleOnUp = (unsigned int) -1;
1340
1341     m_hasFocus = false;
1342
1343     SetBackgroundColour( *wxWHITE );
1344
1345     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1346
1347     m_penRule = wxPen(GetRuleColour());
1348
1349     //Here I compose a pen can draw black lines, maybe there are something system colour to use
1350     m_penExpander = wxPen(wxColour(0,0,0));
1351     //Some new added code to deal with the tree structure
1352     m_root = new wxDataViewTreeNode( NULL );
1353     m_root->SetHasChildren(true);
1354
1355     //Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1356     m_count = -1;
1357     m_underMouse = NULL;
1358     UpdateDisplay();
1359 }
1360
1361 wxDataViewMainWindow::~wxDataViewMainWindow()
1362 {
1363     DestroyTree();
1364     delete m_renameTimer;
1365 }
1366
1367
1368 #if wxUSE_DRAG_AND_DROP
1369 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1370 {
1371     m_dragFormat = format;
1372     m_dragEnabled = format != wxDF_INVALID;
1373
1374     return true;
1375 }
1376
1377 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1378 {
1379     m_dropFormat = format;
1380     m_dropEnabled = format != wxDF_INVALID;
1381
1382     if (m_dropEnabled)
1383         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1384
1385     return true;
1386 }
1387
1388 void wxDataViewMainWindow::RemoveDropHint()
1389 {
1390     if (m_dropHint)
1391     {
1392             m_dropHint = false;
1393             RefreshRow( m_dropHintLine );
1394             m_dropHintLine = (unsigned int) -1;
1395     }
1396 }
1397
1398 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def )
1399 {
1400     int xx = x;
1401     int yy = y;
1402     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1403     unsigned int row = GetLineAt( yy );
1404
1405     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1406     {
1407         RemoveDropHint();
1408         return wxDragNone;
1409     }
1410
1411     wxDataViewItem item = GetItemByRow( row );
1412
1413     wxDataViewModel *model = GetOwner()->GetModel();
1414
1415     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1416     event.SetEventObject( m_owner );
1417     event.SetItem( item );
1418     event.SetModel( model );
1419     event.SetDataFormat( format );
1420     if (!m_owner->HandleWindowEvent( event ))
1421     {
1422         RemoveDropHint();
1423         return wxDragNone;
1424     }
1425
1426     if (!event.IsAllowed())
1427     {
1428         RemoveDropHint();
1429         return wxDragNone;
1430     }
1431
1432
1433     if (m_dropHint && (row != m_dropHintLine))
1434         RefreshRow( m_dropHintLine );
1435     m_dropHint = true;
1436     m_dropHintLine = row;
1437     RefreshRow( row );
1438
1439     return def;
1440 }
1441
1442 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1443 {
1444     RemoveDropHint();
1445
1446     int xx = x;
1447     int yy = y;
1448     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1449     unsigned int row = GetLineAt( yy );
1450
1451     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1452         return false;
1453
1454     wxDataViewItem item = GetItemByRow( row );
1455
1456     wxDataViewModel *model = GetOwner()->GetModel();
1457
1458     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1459     event.SetEventObject( m_owner );
1460     event.SetItem( item );
1461     event.SetModel( model );
1462     event.SetDataFormat( format );
1463     if (!m_owner->HandleWindowEvent( event ))
1464         return false;
1465
1466     if (!event.IsAllowed())
1467         return false;
1468
1469     return true;
1470 }
1471
1472 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def )
1473 {
1474     int xx = x;
1475     int yy = y;
1476     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1477     unsigned int row = GetLineAt( yy );
1478
1479     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1480         return wxDragNone;
1481
1482     wxDataViewItem item = GetItemByRow( row );
1483
1484     wxDataViewModel *model = GetOwner()->GetModel();
1485
1486     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1487
1488     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1489     event.SetEventObject( m_owner );
1490     event.SetItem( item );
1491     event.SetModel( model );
1492     event.SetDataFormat( format );
1493     event.SetDataSize( obj->GetSize() );
1494     event.SetDataBuffer( obj->GetData() );
1495     if (!m_owner->HandleWindowEvent( event ))
1496         return wxDragNone;
1497
1498     if (!event.IsAllowed())
1499         return wxDragNone;
1500
1501     return def;
1502 }
1503
1504 void wxDataViewMainWindow::OnLeave()
1505 {
1506     RemoveDropHint();
1507 }
1508
1509 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1510 {
1511     int height = GetLineHeight( row );
1512     int width = 0;
1513     unsigned int cols = GetOwner()->GetColumnCount();
1514     unsigned int col;
1515     for (col = 0; col < cols; col++)
1516     {
1517         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1518         if (column->IsHidden())
1519             continue;      // skip it!
1520         width += column->GetWidth();
1521     }
1522
1523     indent = 0;
1524     if (!IsVirtualList())
1525     {
1526         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1527         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1528         indent = indent + m_lineHeight;  //try to use the m_lineHeight as the expander space
1529
1530                 if(!node->HasChildren())
1531                         delete node;
1532     }
1533     width -= indent;
1534
1535     wxBitmap bitmap( width, height );
1536     wxMemoryDC dc( bitmap );
1537     dc.SetFont( GetFont() );
1538     dc.SetPen( *wxBLACK_PEN );
1539     dc.SetBrush( *wxWHITE_BRUSH );
1540     dc.DrawRectangle( 0,0,width,height );
1541
1542     wxDataViewModel *model = m_owner->GetModel();
1543
1544     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1545     if (!expander)
1546     {
1547         // TODO-RTL: last column for RTL support
1548         expander = GetOwner()->GetColumnAt( 0 );
1549         GetOwner()->SetExpanderColumn(expander);
1550     }
1551
1552
1553     int x = 0;
1554     for (col = 0; col < cols; col++)
1555     {
1556         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1557         wxDataViewRenderer *cell = column->GetRenderer();
1558
1559         if (column->IsHidden())
1560             continue;       // skip it!
1561
1562         width = column->GetWidth();
1563
1564         if (column == expander)
1565             width -= indent;
1566
1567         wxVariant value;
1568         wxDataViewItem item = GetItemByRow( row );
1569         model->GetValue( value, item, column->GetModelColumn());
1570         cell->SetValue( value );
1571
1572         if (cell->GetWantsAttr())
1573         {
1574                 wxDataViewItemAttr attr;
1575                 bool ret = model->GetAttr( item, column->GetModelColumn(), attr );
1576                 if (ret)
1577                     cell->SetAttr( attr );
1578                 cell->SetHasAttr( ret );
1579         }
1580
1581         wxSize size = cell->GetSize();
1582         size.x = wxMin( 2*PADDING_RIGHTLEFT + size.x, width );
1583         size.y = height;
1584         wxRect item_rect(x, 0, size.x, size.y);
1585
1586         int align = cell->CalculateAlignment();
1587         // horizontal alignment:
1588         item_rect.x = x;
1589         if (align & wxALIGN_CENTER_HORIZONTAL)
1590             item_rect.x = x + (width / 2) - (size.x / 2);
1591         else if (align & wxALIGN_RIGHT)
1592             item_rect.x = x + width - size.x;
1593         //else: wxALIGN_LEFT is the default
1594
1595         // vertical alignment:
1596         item_rect.y = 0;
1597         if (align & wxALIGN_CENTER_VERTICAL)
1598             item_rect.y = (height / 2) - (size.y / 2);
1599         else if (align & wxALIGN_BOTTOM)
1600             item_rect.y = height - size.y;
1601         //else: wxALIGN_TOP is the default
1602
1603         // add padding
1604         item_rect.x += PADDING_RIGHTLEFT;
1605         item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
1606
1607         //dc.SetClippingRegion( item_rect );
1608         cell->Render( item_rect, &dc, 0 );
1609         //dc.DestroyClippingRegion();
1610
1611         x += width;
1612     }
1613
1614     return bitmap;
1615 }
1616
1617 #endif // wxUSE_DRAG_AND_DROP
1618
1619
1620 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1621 {
1622     wxDataViewModel *model = GetOwner()->GetModel();
1623     wxAutoBufferedPaintDC dc( this );
1624
1625 #ifdef __WXMSW__
1626     dc.SetPen( *wxTRANSPARENT_PEN );
1627     dc.SetBrush( wxBrush( GetBackgroundColour()) );
1628     dc.SetBrush( *wxWHITE_BRUSH );
1629     wxSize size( GetClientSize() );
1630     dc.DrawRectangle( 0,0,size.x,size.y );
1631 #endif
1632
1633     // prepare the DC
1634     GetOwner()->PrepareDC( dc );
1635     dc.SetFont( GetFont() );
1636
1637     wxRect update = GetUpdateRegion().GetBox();
1638     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1639
1640     // compute which items needs to be redrawn
1641     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1642     unsigned int item_count =
1643         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1644                (int)(GetRowCount( ) - item_start));
1645     unsigned int item_last = item_start + item_count;
1646
1647     // compute which columns needs to be redrawn
1648     unsigned int cols = GetOwner()->GetColumnCount();
1649     unsigned int col_start = 0;
1650     unsigned int x_start;
1651     for (x_start = 0; col_start < cols; col_start++)
1652     {
1653         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1654         if (col->IsHidden())
1655             continue;      // skip it!
1656
1657         unsigned int w = col->GetWidth();
1658         if (x_start+w >= (unsigned int)update.x)
1659             break;
1660
1661         x_start += w;
1662     }
1663
1664     unsigned int col_last = col_start;
1665     unsigned int x_last = x_start;
1666     for (; col_last < cols; col_last++)
1667     {
1668         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1669         if (col->IsHidden())
1670             continue;      // skip it!
1671
1672         if (x_last > (unsigned int)update.GetRight())
1673             break;
1674
1675         x_last += col->GetWidth();
1676     }
1677
1678     // Draw horizontal rules if required
1679     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1680     {
1681         dc.SetPen(m_penRule);
1682         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1683
1684         for (unsigned int i = item_start; i <= item_last+1; i++)
1685         {
1686             int y = GetLineStart( i );
1687             dc.DrawLine(x_start, y, x_last, y);
1688         }
1689     }
1690
1691     // Draw vertical rules if required
1692     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1693     {
1694         dc.SetPen(m_penRule);
1695         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1696
1697         int x = x_start;
1698         for (unsigned int i = col_start; i < col_last; i++)
1699         {
1700             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1701             if (col->IsHidden())
1702                 continue;       // skip it
1703
1704             dc.DrawLine(x, GetLineStart( item_start ),
1705                         x, GetLineStart( item_last ) );
1706
1707             x += col->GetWidth();
1708         }
1709
1710         // Draw last vertical rule
1711         dc.DrawLine(x, GetLineStart( item_start ),
1712                     x, GetLineStart( item_last ) );
1713     }
1714
1715     // redraw the background for the items which are selected/current
1716     for (unsigned int item = item_start; item < item_last; item++)
1717     {
1718         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1719         if (selected || item == m_currentRow)
1720         {
1721             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1722             if (item == m_currentRow)
1723                 flags |= wxCONTROL_CURRENT;
1724             if (m_hasFocus)
1725                 flags |= wxCONTROL_FOCUSED;
1726
1727             wxRect rect( x_start, GetLineStart( item ), x_last, GetLineHeight( item ) );
1728             wxRendererNative::Get().DrawItemSelectionRect
1729                                 (
1730                                     this,
1731                                     dc,
1732                                     rect,
1733                                     flags
1734                                 );
1735         }
1736     }
1737
1738 #if wxUSE_DRAG_AND_DROP
1739     if (m_dropHint)
1740     {
1741         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1742                      x_last, GetLineHeight( m_dropHintLine ) );
1743         dc.SetPen( *wxBLACK_PEN );
1744         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1745         dc.DrawRectangle( rect );
1746     }
1747 #endif // wxUSE_DRAG_AND_DROP
1748
1749     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1750     if (!expander)
1751     {
1752         // TODO-RTL: last column for RTL support
1753         expander = GetOwner()->GetColumnAt( 0 );
1754         GetOwner()->SetExpanderColumn(expander);
1755     }
1756
1757     // redraw all cells for all rows which must be repainted and all columns
1758     wxRect cell_rect;
1759     cell_rect.x = x_start;
1760     for (unsigned int i = col_start; i < col_last; i++)
1761     {
1762
1763         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1764         wxDataViewRenderer *cell = col->GetRenderer();
1765         cell_rect.width = col->GetWidth();
1766
1767         if (col->IsHidden())
1768             continue;       // skip it!
1769
1770         for (unsigned int item = item_start; item < item_last; item++)
1771         {
1772             // get the cell value and set it into the renderer
1773             wxVariant value;
1774             wxDataViewTreeNode *node = NULL;
1775             wxDataViewItem dataitem;
1776
1777             if (!IsVirtualList())
1778             {
1779                 node = GetTreeNodeByRow(item);
1780                 if( node == NULL )
1781                     continue;
1782
1783                 dataitem = node->GetItem();
1784
1785                 if ((i > 0) && model->IsContainer(dataitem) && !model->HasContainerColumns(dataitem))
1786                     continue;
1787             }
1788             else
1789             {
1790                 dataitem = wxDataViewItem( wxUIntToPtr(item) );
1791             }
1792
1793             model->GetValue( value, dataitem, col->GetModelColumn());
1794             cell->SetValue( value );
1795
1796             if (cell->GetWantsAttr())
1797             {
1798                 wxDataViewItemAttr attr;
1799                 bool ret = model->GetAttr( dataitem, col->GetModelColumn(), attr );
1800                 if (ret)
1801                     cell->SetAttr( attr );
1802                 cell->SetHasAttr( ret );
1803             }
1804
1805             // update cell_rect
1806             cell_rect.y = GetLineStart( item );
1807             cell_rect.height = GetLineHeight( item );     // -1 is for the horizontal rules (?)
1808
1809             //Draw the expander here.
1810             int indent = 0;
1811             if ((!IsVirtualList()) && (col == expander))
1812             {
1813                 indent = node->GetIndentLevel();
1814
1815                 //Calculate the indent first
1816                 indent = cell_rect.x + GetOwner()->GetIndent() * indent;
1817
1818                 int expander_width = m_lineHeight - 2*EXPANDER_MARGIN;
1819                 // change the cell_rect.x to the appropriate pos
1820                 int  expander_x = indent + EXPANDER_MARGIN;
1821                 int expander_y = cell_rect.y + EXPANDER_MARGIN + (GetLineHeight(item) / 2) - (expander_width/2) - EXPANDER_OFFSET;
1822                 indent = indent + m_lineHeight;  //try to use the m_lineHeight as the expander space
1823                 dc.SetPen( m_penExpander );
1824                 dc.SetBrush( wxNullBrush );
1825                 if( node->HasChildren() )
1826                 {
1827                     wxRect rect( expander_x , expander_y, expander_width, expander_width);
1828                     int flag = 0;
1829                     if (m_underMouse == node)
1830                     {
1831                         flag |= wxCONTROL_CURRENT;
1832                     }
1833                     if( node->IsOpen() )
1834                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag|wxCONTROL_EXPANDED );
1835                     else
1836                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1837                 }
1838                  //force the expander column to left-center align
1839                  cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1840             }
1841             if (node && !node->HasChildren())
1842             {
1843                 // Yes, if the node does not have any child, it must be a leaf which
1844                 // mean that it is a temporarily created by GetTreeNodeByRow
1845                 wxDELETE(node);
1846             }
1847
1848             // cannot be bigger than allocated space
1849             wxSize size = cell->GetSize();
1850             // Because of the tree structure indent, here we should minus the width of the cell for drawing
1851             size.x = wxMin( size.x + 2*PADDING_RIGHTLEFT, cell_rect.width - indent );
1852             // size.y = wxMin( size.y, cell_rect.height );
1853             size.y = cell_rect.height;
1854
1855             wxRect item_rect(cell_rect.GetTopLeft(), size);
1856             int align = cell->CalculateAlignment();
1857
1858             // horizontal alignment:
1859             item_rect.x = cell_rect.x;
1860             if (align & wxALIGN_CENTER_HORIZONTAL)
1861                 item_rect.x = cell_rect.x + (cell_rect.width / 2) - (size.x / 2);
1862             else if (align & wxALIGN_RIGHT)
1863                 item_rect.x = cell_rect.x + cell_rect.width - size.x;
1864             //else: wxALIGN_LEFT is the default
1865
1866             // vertical alignment:
1867             item_rect.y = cell_rect.y;
1868             if (align & wxALIGN_CENTER_VERTICAL)
1869                 item_rect.y = cell_rect.y + (cell_rect.height / 2) - (size.y / 2);
1870             else if (align & wxALIGN_BOTTOM)
1871                 item_rect.y = cell_rect.y + cell_rect.height - size.y;
1872             //else: wxALIGN_TOP is the default
1873
1874             // add padding
1875             item_rect.x += PADDING_RIGHTLEFT;
1876             item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
1877
1878             //Here we add the tree indent
1879             item_rect.x += indent;
1880
1881             int state = 0;
1882             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1883                 state |= wxDATAVIEW_CELL_SELECTED;
1884
1885             // TODO: it would be much more efficient to create a clipping
1886             //       region for the entire column being rendered (in the OnPaint
1887             //       of wxDataViewMainWindow) instead of a single clip region for
1888             //       each cell. However it would mean that each renderer should
1889             //       respect the given wxRect's top & bottom coords, eventually
1890             //       violating only the left & right coords - however the user can
1891             //       make its own renderer and thus we cannot be sure of that.
1892             dc.SetClippingRegion( item_rect );
1893             cell->Render( item_rect, &dc, state );
1894             dc.DestroyClippingRegion();
1895         }
1896
1897         cell_rect.x += cell_rect.width;
1898     }
1899 }
1900
1901 void wxDataViewMainWindow::OnRenameTimer()
1902 {
1903     // We have to call this here because changes may just have
1904     // been made and no screen update taken place.
1905     if ( m_dirty )
1906         wxSafeYield();
1907
1908     int xpos = 0;
1909     unsigned int cols = GetOwner()->GetColumnCount();
1910     unsigned int i;
1911     for (i = 0; i < cols; i++)
1912     {
1913         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
1914         if (c->IsHidden())
1915             continue;      // skip it!
1916
1917         if (c == m_currentCol)
1918             break;
1919         xpos += c->GetWidth();
1920     }
1921
1922         // we have to take an expander column into account and compute its indentation
1923         // to get the editor at the correct x position where the actual text is
1924         int indent = 0;
1925         if (!IsVirtualList() && GetOwner()->GetExpanderColumn() == m_currentCol)
1926         {
1927                 wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
1928                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1929                 indent = indent + m_lineHeight;
1930
1931                 if(!node->HasChildren())
1932                         delete node;
1933         }
1934
1935     wxRect labelRect( xpos + indent,
1936                       GetLineStart( m_currentRow ),
1937                       m_currentCol->GetWidth() - indent,
1938                       GetLineHeight( m_currentRow ) );
1939
1940     GetOwner()->CalcScrolledPosition( labelRect.x, labelRect.y,
1941                                      &labelRect.x, &labelRect.y);
1942
1943     wxDataViewItem item = GetItemByRow( m_currentRow );
1944     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1945 }
1946
1947 //------------------------------------------------------------------
1948 // Helper class for do operation on the tree node
1949 //------------------------------------------------------------------
1950 class DoJob
1951 {
1952 public:
1953     DoJob() { }
1954     virtual ~DoJob() { }
1955
1956     //The return value control how the tree-walker tranverse the tree
1957     // 0: Job done, stop tranverse and return
1958     // 1: Ignore the current node's subtree and continue
1959     // 2: Job not done, continue
1960     enum  { OK = 0 , IGR = 1, CONT = 2 };
1961     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1962     virtual int operator() ( void * n ) = 0;
1963 };
1964
1965 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1966 {
1967     if( node==NULL )
1968         return false;
1969
1970     switch( func( node ) )
1971     {
1972         case DoJob::OK :
1973             return true;
1974         case DoJob::IGR:
1975             return false;
1976         case DoJob::CONT:
1977         default:
1978             ;
1979     }
1980
1981     wxDataViewTreeNodes nodes = node->GetNodes();
1982     wxDataViewTreeLeaves leaves = node->GetChildren();
1983
1984     int len_nodes = nodes.GetCount();
1985     int len = leaves.GetCount();
1986     int i = 0, nodes_i = 0;
1987
1988     for(; i < len; i ++ )
1989     {
1990         void * n = leaves[i];
1991         if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
1992         {
1993             wxDataViewTreeNode * nd = nodes[nodes_i];
1994             nodes_i++;
1995
1996             if( Walker( nd , func ) )
1997                 return true;
1998
1999         }
2000         else
2001             switch( func( n ) )
2002             {
2003                 case DoJob::OK :
2004                     return true;
2005                 case DoJob::IGR:
2006                     continue;
2007                 case DoJob::CONT:
2008                 default:
2009                    ;
2010             }
2011     }
2012     return false;
2013 }
2014
2015 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
2016 {
2017     if (!m_root)
2018     {
2019         m_count++;
2020         UpdateDisplay();
2021         return true;
2022     }
2023
2024     SortPrepare();
2025
2026     wxDataViewTreeNode * node;
2027     node = FindNode(parent);
2028
2029     if( node == NULL )
2030         return false;
2031
2032     node->SetHasChildren( true );
2033
2034     if( g_model->IsContainer( item ) )
2035     {
2036         wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
2037         newnode->SetItem(item);
2038         newnode->SetHasChildren( true );
2039         node->AddNode( newnode);
2040     }
2041     else
2042         node->AddLeaf( item.GetID() );
2043
2044     node->ChangeSubTreeCount(1);
2045
2046     m_count = -1;
2047     UpdateDisplay();
2048
2049     return true;
2050 }
2051
2052 static void DestroyTreeHelper( wxDataViewTreeNode * node);
2053
2054 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2055                                        const wxDataViewItem& item)
2056 {
2057     if (!m_root)
2058     {
2059         m_count--;
2060         if( m_currentRow > GetRowCount() )
2061             m_currentRow = m_count - 1;
2062
2063         m_selection.Empty();
2064
2065         UpdateDisplay();
2066
2067         return true;
2068     }
2069
2070     wxDataViewTreeNode * node = FindNode(parent);
2071
2072     wxCHECK_MSG( node != NULL, false, "item not found" );
2073     wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND, false, "item not found" );
2074
2075     int sub = -1;
2076     node->GetChildren().Remove( item.GetID() );
2077     //Manuplate selection
2078     if( m_selection.GetCount() > 1 )
2079     {
2080         m_selection.Empty();
2081     }
2082     bool isContainer = false;
2083     wxDataViewTreeNodes nds = node->GetNodes();
2084     for (size_t i = 0; i < nds.GetCount(); i ++)
2085     {
2086         if (nds[i]->GetItem() == item)
2087         {
2088             isContainer = true;
2089             break;
2090         }
2091     }
2092     if( isContainer )
2093     {
2094         wxDataViewTreeNode * n = NULL;
2095         wxDataViewTreeNodes nodes = node->GetNodes();
2096         int len = nodes.GetCount();
2097         for( int i = 0; i < len; i ++)
2098         {
2099             if( nodes[i]->GetItem() == item )
2100             {
2101                 n = nodes[i];
2102                 break;
2103             }
2104         }
2105
2106         wxCHECK_MSG( n != NULL, false, "item not found" );
2107
2108         node->GetNodes().Remove( n );
2109         sub -= n->GetSubTreeCount();
2110         ::DestroyTreeHelper(n);
2111     }
2112     //Make the row number invalid and get a new valid one when user call GetRowCount
2113     m_count = -1;
2114     node->ChangeSubTreeCount(sub);
2115
2116     //Change the current row to the last row if the current exceed the max row number
2117     if( m_currentRow > GetRowCount() )
2118         m_currentRow = m_count - 1;
2119
2120     UpdateDisplay();
2121
2122     return true;
2123 }
2124
2125 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2126 {
2127     SortPrepare();
2128     g_model->Resort();
2129
2130     //Send event
2131     wxWindow *parent = GetParent();
2132     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2133     le.SetEventObject(parent);
2134     le.SetModel(GetOwner()->GetModel());
2135     le.SetItem(item);
2136     parent->GetEventHandler()->ProcessEvent(le);
2137
2138     return true;
2139 }
2140
2141 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )
2142 {
2143     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2144 /*#define MAX_VIRTUAL_WIDTH       100000
2145
2146     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2147     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2148     Refresh( true, &rect );
2149
2150     return true;
2151 */
2152     SortPrepare();
2153     g_model->Resort();
2154
2155     //Send event
2156     wxWindow *parent = GetParent();
2157     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2158     le.SetEventObject(parent);
2159     le.SetModel(GetOwner()->GetModel());
2160     le.SetItem(item);
2161     le.SetColumn(col);
2162     le.SetDataViewColumn(GetOwner()->GetColumn(col));
2163     parent->GetEventHandler()->ProcessEvent(le);
2164
2165     return true;
2166 }
2167
2168 bool wxDataViewMainWindow::Cleared()
2169 {
2170     DestroyTree();
2171
2172     SortPrepare();
2173     BuildTree( GetOwner()->GetModel() );
2174
2175     UpdateDisplay();
2176
2177     return true;
2178 }
2179
2180 void wxDataViewMainWindow::UpdateDisplay()
2181 {
2182     m_dirty = true;
2183 }
2184
2185 void wxDataViewMainWindow::OnInternalIdle()
2186 {
2187     wxWindow::OnInternalIdle();
2188
2189     if (m_dirty)
2190     {
2191         RecalculateDisplay();
2192         m_dirty = false;
2193     }
2194 }
2195
2196 void wxDataViewMainWindow::RecalculateDisplay()
2197 {
2198     wxDataViewModel *model = GetOwner()->GetModel();
2199     if (!model)
2200     {
2201         Refresh();
2202         return;
2203     }
2204
2205     int width = GetEndOfLastCol();
2206     int height = GetLineStart( GetRowCount() );
2207
2208     SetVirtualSize( width, height );
2209     GetOwner()->SetScrollRate( 10, m_lineHeight );
2210
2211     Refresh();
2212 }
2213
2214 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2215 {
2216     wxWindow::ScrollWindow( dx, dy, rect );
2217
2218     if (GetOwner()->m_headerArea)
2219         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2220 }
2221
2222 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2223 {
2224     int x, y;
2225     m_owner->GetScrollPixelsPerUnit( &x, &y );
2226     int sy = GetLineStart( rows )/y;
2227     int sx = 0;
2228     if( column != -1 )
2229     {
2230         wxRect rect = GetClientRect();
2231         int colnum = 0;
2232         int x_start, w = 0;
2233         int xx, yy, xe;
2234         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2235         for (x_start = 0; colnum < column; colnum++)
2236         {
2237             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2238             if (col->IsHidden())
2239                 continue;      // skip it!
2240
2241             w = col->GetWidth();
2242             x_start += w;
2243         }
2244
2245         int x_end = x_start + w;
2246         xe = xx + rect.width;
2247         if( x_end > xe )
2248         {
2249             sx = ( xx + x_end - xe )/x;
2250         }
2251         if( x_start < xx )
2252         {
2253             sx = x_start/x;
2254         }
2255     }
2256     m_owner->Scroll( sx, sy );
2257 }
2258
2259 int wxDataViewMainWindow::GetCountPerPage() const
2260 {
2261     wxSize size = GetClientSize();
2262     return size.y / m_lineHeight;
2263 }
2264
2265 int wxDataViewMainWindow::GetEndOfLastCol() const
2266 {
2267     int width = 0;
2268     unsigned int i;
2269     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2270     {
2271         const wxDataViewColumn *c =
2272             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2273
2274         if (!c->IsHidden())
2275             width += c->GetWidth();
2276     }
2277     return width;
2278 }
2279
2280 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2281 {
2282     int x = 0;
2283     int y = 0;
2284     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2285
2286     return GetLineAt( y );
2287 }
2288
2289 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2290 {
2291     wxSize client_size = GetClientSize();
2292     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2293                                      &client_size.x, &client_size.y );
2294
2295     //we should deal with the pixel here
2296     unsigned int row = GetLineAt(client_size.y) - 1;
2297
2298     return wxMin( GetRowCount()-1, row );
2299 }
2300
2301 unsigned int wxDataViewMainWindow::GetRowCount()
2302 {
2303     if ( m_count == -1 )
2304     {
2305         m_count = RecalculateCount();
2306         UpdateDisplay();
2307     }
2308     return m_count;
2309 }
2310
2311 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2312 {
2313     m_currentRow = row;
2314
2315     // send event
2316 }
2317
2318 void wxDataViewMainWindow::SelectAllRows( bool on )
2319 {
2320     if (IsEmpty())
2321         return;
2322
2323     if (on)
2324     {
2325         m_selection.Clear();
2326         for (unsigned int i = 0; i < GetRowCount(); i++)
2327             m_selection.Add( i );
2328         Refresh();
2329     }
2330     else
2331     {
2332         unsigned int first_visible = GetFirstVisibleRow();
2333         unsigned int last_visible = GetLastVisibleRow();
2334         unsigned int i;
2335         for (i = 0; i < m_selection.GetCount(); i++)
2336         {
2337             unsigned int row = m_selection[i];
2338             if ((row >= first_visible) && (row <= last_visible))
2339                 RefreshRow( row );
2340         }
2341         m_selection.Clear();
2342     }
2343 }
2344
2345 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2346 {
2347     if (m_selection.Index( row ) == wxNOT_FOUND)
2348     {
2349         if (on)
2350         {
2351             m_selection.Add( row );
2352             RefreshRow( row );
2353         }
2354     }
2355     else
2356     {
2357         if (!on)
2358         {
2359             m_selection.Remove( row );
2360             RefreshRow( row );
2361         }
2362     }
2363 }
2364
2365 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2366 {
2367     if (from > to)
2368     {
2369         unsigned int tmp = from;
2370         from = to;
2371         to = tmp;
2372     }
2373
2374     unsigned int i;
2375     for (i = from; i <= to; i++)
2376     {
2377         if (m_selection.Index( i ) == wxNOT_FOUND)
2378         {
2379             if (on)
2380                 m_selection.Add( i );
2381         }
2382         else
2383         {
2384             if (!on)
2385                 m_selection.Remove( i );
2386         }
2387     }
2388     RefreshRows( from, to );
2389 }
2390
2391 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2392 {
2393     for (size_t i=0; i < aSelections.GetCount(); i++)
2394     {
2395         int n = aSelections[i];
2396
2397         m_selection.Add( n );
2398         RefreshRow( n );
2399     }
2400 }
2401
2402 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2403 {
2404     if (m_selection.Index( row ) == wxNOT_FOUND)
2405         m_selection.Add( row );
2406     else
2407         m_selection.Remove( row );
2408     RefreshRow( row );
2409 }
2410
2411 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2412 {
2413     return (m_selection.Index( row ) != wxNOT_FOUND);
2414 }
2415
2416 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2417 {
2418     wxWindow *parent = GetParent();
2419     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2420
2421     le.SetEventObject(parent);
2422     le.SetModel(GetOwner()->GetModel());
2423     le.SetItem( item );
2424
2425     parent->GetEventHandler()->ProcessEvent(le);
2426 }
2427
2428 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2429 {
2430     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2431     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2432
2433     wxSize client_size = GetClientSize();
2434     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2435     wxRect intersect_rect = client_rect.Intersect( rect );
2436     if (intersect_rect.width > 0)
2437         Refresh( true, &intersect_rect );
2438 }
2439
2440 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2441 {
2442     if (from > to)
2443     {
2444         unsigned int tmp = to;
2445         to = from;
2446         from = tmp;
2447     }
2448
2449     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2450     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2451
2452     wxSize client_size = GetClientSize();
2453     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2454     wxRect intersect_rect = client_rect.Intersect( rect );
2455     if (intersect_rect.width > 0)
2456         Refresh( true, &intersect_rect );
2457 }
2458
2459 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2460 {
2461     wxSize client_size = GetClientSize();
2462     int start = GetLineStart( firstRow );
2463     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2464     if (start > client_size.y) return;
2465
2466     wxRect rect( 0, start, client_size.x, client_size.y - start );
2467
2468     Refresh( true, &rect );
2469 }
2470
2471 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2472 {
2473     wxCHECK_RET( newCurrent < GetRowCount(),
2474                  _T("invalid item index in OnArrowChar()") );
2475
2476     // if there is no selection, we cannot move it anywhere
2477     if (!HasCurrentRow())
2478         return;
2479
2480     unsigned int oldCurrent = m_currentRow;
2481
2482     // in single selection we just ignore Shift as we can't select several
2483     // items anyhow
2484     if ( event.ShiftDown() && !IsSingleSel() )
2485     {
2486         RefreshRow( oldCurrent );
2487
2488         ChangeCurrentRow( newCurrent );
2489
2490         // select all the items between the old and the new one
2491         if ( oldCurrent > newCurrent )
2492         {
2493             newCurrent = oldCurrent;
2494             oldCurrent = m_currentRow;
2495         }
2496
2497         SelectRows( oldCurrent, newCurrent, true );
2498         if (oldCurrent!=newCurrent)
2499             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2500     }
2501     else // !shift
2502     {
2503         RefreshRow( oldCurrent );
2504
2505         // all previously selected items are unselected unless ctrl is held
2506         if ( !event.ControlDown() )
2507             SelectAllRows(false);
2508
2509         ChangeCurrentRow( newCurrent );
2510
2511         if ( !event.ControlDown() )
2512         {
2513             SelectRow( m_currentRow, true );
2514             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2515         }
2516         else
2517             RefreshRow( m_currentRow );
2518     }
2519
2520     GetOwner()->EnsureVisible( m_currentRow, -1 );
2521 }
2522
2523 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2524 {
2525     wxRect rect;
2526     rect.x = 0;
2527     rect.y = GetLineStart( row );
2528     rect.width = GetEndOfLastCol();
2529     rect.height = GetLineHeight( row );
2530
2531     return rect;
2532 }
2533
2534 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2535 {
2536     const wxDataViewModel *model = GetOwner()->GetModel();
2537
2538     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2539     {
2540         // TODO make more efficient
2541
2542         int start = 0;
2543
2544         unsigned int r;
2545         for (r = 0; r < row; r++)
2546         {
2547             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2548             if (!node) return start;
2549
2550             wxDataViewItem item = node->GetItem();
2551
2552             if (node && !node->HasChildren())
2553             {
2554                 // Yes, if the node does not have any child, it must be a leaf which
2555                 // mean that it is a temporarily created by GetTreeNodeByRow
2556                 wxDELETE(node);
2557             }
2558
2559             unsigned int cols = GetOwner()->GetColumnCount();
2560             unsigned int col;
2561             int height = m_lineHeight;
2562             for (col = 0; col < cols; col++)
2563             {
2564                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2565                 if (column->IsHidden())
2566                     continue;      // skip it!
2567
2568                 if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
2569                     continue;      // skip it!
2570
2571                 const wxDataViewRenderer *renderer = column->GetRenderer();
2572                 wxVariant value;
2573                 model->GetValue( value, item, column->GetModelColumn() );
2574                 wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
2575                 renderer2->SetValue( value );
2576                 height = wxMax( height, renderer->GetSize().y );
2577             }
2578
2579
2580             start += height;
2581         }
2582
2583         return start;
2584     }
2585     else
2586     {
2587         return row * m_lineHeight;
2588     }
2589 }
2590
2591 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2592 {
2593     const wxDataViewModel *model = GetOwner()->GetModel();
2594
2595     // check for the easy case first
2596     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2597         return y / m_lineHeight;
2598
2599     // TODO make more efficient
2600     unsigned int row = 0;
2601     unsigned int yy = 0;
2602     for (;;)
2603     {
2604        const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2605        if (!node)
2606        {
2607            // not really correct...
2608            return row + ((y-yy) / m_lineHeight);
2609        }
2610
2611        wxDataViewItem item = node->GetItem();
2612
2613         if (node && !node->HasChildren())
2614         {
2615             // Yes, if the node does not have any child, it must be a leaf which
2616             // mean that it is a temporarily created by GetTreeNodeByRow
2617             wxDELETE(node);
2618         }
2619
2620        unsigned int cols = GetOwner()->GetColumnCount();
2621        unsigned int col;
2622        int height = m_lineHeight;
2623        for (col = 0; col < cols; col++)
2624        {
2625             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2626             if (column->IsHidden())
2627                 continue;      // skip it!
2628
2629             if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
2630                 continue;      // skip it!
2631
2632             const wxDataViewRenderer *renderer = column->GetRenderer();
2633             wxVariant value;
2634             model->GetValue( value, item, column->GetModelColumn() );
2635             wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
2636             renderer2->SetValue( value );
2637             height = wxMax( height, renderer->GetSize().y );
2638        }
2639
2640        yy += height;
2641        if (y < yy)
2642            return row;
2643
2644        row++;
2645     }
2646 }
2647
2648 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2649 {
2650     const wxDataViewModel *model = GetOwner()->GetModel();
2651
2652     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2653     {
2654         wxASSERT( !IsVirtualList() );
2655
2656         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2657         // wxASSERT( node );
2658         if (!node) return m_lineHeight;
2659
2660         wxDataViewItem item = node->GetItem();
2661
2662         if (node && !node->HasChildren())
2663         {
2664                 // Yes, if the node does not have any child, it must be a leaf which
2665                 // mean that it is a temporarily created by GetTreeNodeByRow
2666              wxDELETE(node);
2667         }
2668
2669         int height = m_lineHeight;
2670
2671         unsigned int cols = GetOwner()->GetColumnCount();
2672         unsigned int col;
2673         for (col = 0; col < cols; col++)
2674         {
2675             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2676             if (column->IsHidden())
2677                 continue;      // skip it!
2678
2679             if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
2680                 continue;      // skip it!
2681
2682             const wxDataViewRenderer *renderer = column->GetRenderer();
2683             wxVariant value;
2684             model->GetValue( value, item, column->GetModelColumn() );
2685             wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
2686             renderer2->SetValue( value );
2687             height = wxMax( height, renderer->GetSize().y );
2688         }
2689
2690         return height;
2691     }
2692     else
2693     {
2694         return m_lineHeight;
2695     }
2696 }
2697
2698 class RowToItemJob: public DoJob
2699 {
2700 public:
2701     RowToItemJob( unsigned int row , int current ) { this->row = row; this->current = current;}
2702     virtual ~RowToItemJob() { }
2703
2704     virtual int operator() ( wxDataViewTreeNode * node )
2705     {
2706         current ++;
2707         if( current == static_cast<int>(row))
2708          {
2709             ret = node->GetItem();
2710             return DoJob::OK;
2711         }
2712
2713         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2714         {
2715             current += node->GetSubTreeCount();
2716             return  DoJob::IGR;
2717         }
2718         else
2719         {
2720             //If the current has no child node, we can find the desired item of the row number directly.
2721             //This if can speed up finding in some case, and will has a very good effect when it comes to list view
2722             if( node->GetNodes().GetCount() == 0)
2723             {
2724                 int index = static_cast<int>(row) - current - 1;
2725                 ret = node->GetChildren().Item( index );
2726                 return DoJob::OK;
2727             }
2728             return DoJob::CONT;
2729         }
2730     }
2731
2732     virtual int operator() ( void * n )
2733     {
2734         current ++;
2735         if( current == static_cast<int>(row))
2736          {
2737             ret = wxDataViewItem( n );
2738             return DoJob::OK;
2739         }
2740         return DoJob::CONT;
2741     }
2742     wxDataViewItem GetResult(){ return ret; }
2743 private:
2744     unsigned int row;
2745     int current;
2746     wxDataViewItem ret;
2747 };
2748
2749 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2750 {
2751     if (!m_root)
2752     {
2753         return wxDataViewItem( wxUIntToPtr(row) );
2754     }
2755     else
2756     {
2757         RowToItemJob job( row, -2 );
2758         Walker( m_root , job );
2759         return job.GetResult();
2760     }
2761 }
2762
2763 class RowToTreeNodeJob: public DoJob
2764 {
2765 public:
2766     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2767     {
2768         this->row = row;
2769         this->current = current;
2770         ret = NULL;
2771         parent = node;
2772     }
2773     virtual ~RowToTreeNodeJob(){ }
2774
2775     virtual int operator() ( wxDataViewTreeNode * node )
2776     {
2777         current ++;
2778         if( current == static_cast<int>(row))
2779          {
2780             ret = node;
2781             return DoJob::OK;
2782         }
2783
2784         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2785         {
2786             current += node->GetSubTreeCount();
2787             return  DoJob::IGR;
2788         }
2789         else
2790         {
2791             parent = node;
2792             //If the current has no child node, we can find the desired item of the row number directly.
2793             //This if can speed up finding in some case, and will has a very good effect when it comes to list view
2794             if( node->GetNodes().GetCount() == 0)
2795             {
2796                 int index = static_cast<int>(row) - current - 1;
2797                 void * n = node->GetChildren().Item( index );
2798                 ret = new wxDataViewTreeNode( parent );
2799                 ret->SetItem( wxDataViewItem( n ));
2800                 ret->SetHasChildren(false);
2801                 return DoJob::OK;
2802             }
2803             return DoJob::CONT;
2804         }
2805
2806
2807     }
2808
2809     virtual int operator() ( void * n )
2810     {
2811         current ++;
2812         if( current == static_cast<int>(row))
2813          {
2814             ret = new wxDataViewTreeNode( parent );
2815             ret->SetItem( wxDataViewItem( n ));
2816             ret->SetHasChildren(false);
2817             return DoJob::OK;
2818         }
2819
2820         return DoJob::CONT;
2821     }
2822     wxDataViewTreeNode * GetResult(){ return ret; }
2823 private:
2824     unsigned int row;
2825     int current;
2826     wxDataViewTreeNode * ret;
2827     wxDataViewTreeNode * parent;
2828 };
2829
2830
2831 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2832 {
2833     wxASSERT( !IsVirtualList() );
2834
2835     RowToTreeNodeJob job( row , -2, m_root );
2836     Walker( m_root , job );
2837     return job.GetResult();
2838 }
2839
2840 wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type, const wxDataViewItem & item )
2841 {
2842     wxWindow *parent = GetParent();
2843     wxDataViewEvent le(type, parent->GetId());
2844
2845     le.SetEventObject(parent);
2846     le.SetModel(GetOwner()->GetModel());
2847     le.SetItem( item );
2848
2849     parent->GetEventHandler()->ProcessEvent(le);
2850     return le;
2851 }
2852
2853
2854 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2855 {
2856     if (IsVirtualList())
2857        return false;
2858
2859     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2860     if (!node)
2861        return false;
2862
2863     if (!node->HasChildren())
2864     {
2865        delete node;
2866        return false;
2867     }
2868
2869     return node->IsOpen();
2870 }
2871
2872
2873 void wxDataViewMainWindow::OnExpanding( unsigned int row )
2874 {
2875     if (IsVirtualList())
2876        return;
2877
2878     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2879     if( node != NULL )
2880     {
2881         if( node->HasChildren())
2882         {
2883             if( !node->IsOpen())
2884             {
2885                wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING,node->GetItem());
2886                //Check if the user prevent expanding
2887                if( e.GetSkipped() )
2888                     return;
2889
2890                node->ToggleOpen();
2891                //Here I build the children of current node
2892                if( node->GetChildrenNumber() == 0 )
2893                {
2894                    SortPrepare();
2895                    ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2896                }
2897
2898                // By expanding the node all row indices that are currently in the selection list
2899                            // and are greater than our node have become invalid. So we have to correct that now.
2900                            const unsigned rowAdjustment = node->GetSubTreeCount();
2901                            for(unsigned i=0; i<m_selection.size(); ++i)
2902                            {
2903                                    const unsigned testRow = m_selection[i];
2904                                    // all rows above us are not affected, so skip them
2905                                    if(testRow <= row)
2906                                            continue;
2907
2908                                    m_selection[i] += rowAdjustment;
2909                            }
2910
2911                            if(m_currentRow > row)
2912                                    ChangeCurrentRow(m_currentRow + rowAdjustment);
2913
2914                m_count = -1;
2915                UpdateDisplay();
2916                //Send the expanded event
2917                SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2918             }
2919             else
2920             {
2921                 SelectRow( row, false );
2922                 SelectRow( row + 1, true );
2923                 ChangeCurrentRow( row + 1 );
2924                 SendSelectionChangedEvent( GetItemByRow(row+1));
2925             }
2926         }
2927         else
2928             delete node;
2929     }
2930 }
2931
2932 void wxDataViewMainWindow::OnCollapsing(unsigned int row)
2933 {
2934     if (IsVirtualList())
2935        return;
2936
2937     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2938     if( node != NULL )
2939     {
2940         wxDataViewTreeNode * nd = node;
2941
2942         if( node->HasChildren() && node->IsOpen() )
2943         {
2944             wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
2945             if( e.GetSkipped() )
2946                 return;
2947
2948                         // Find out if there are selected items below the current node.
2949                         bool selectCollapsingRow = false;
2950                         const unsigned rowAdjustment = node->GetSubTreeCount();
2951                         unsigned maxRowToBeTested = row + rowAdjustment;
2952                         for(unsigned i=0; i<m_selection.size(); ++i)
2953                         {
2954                                 const unsigned testRow = m_selection[i];
2955                                 if(testRow > row && testRow <= maxRowToBeTested)
2956                                 {
2957                                         selectCollapsingRow = true;
2958                                         // get out as soon as we have found a node that is selected
2959                                         break;
2960                                 }
2961                         }
2962
2963                         node->ToggleOpen();
2964
2965                         // If the node to be closed has selected items the user won't see those any longer.
2966                         // We select the collapsing node in this case.
2967                         if(selectCollapsingRow)
2968                         {
2969                                 SelectAllRows(false);
2970                                 ChangeCurrentRow(row);
2971                                 SelectRow(row, true);
2972                                 SendSelectionChangedEvent(GetItemByRow(row));
2973                         }
2974                         else
2975                         {
2976                                 // if there were no selected items below our node we still need to "fix" the
2977                                 // selection list to adjust for the changing of the row indices.
2978                                 // We actually do the opposite of what we are doing in OnExpanding().
2979                                 for(unsigned i=0; i<m_selection.size(); ++i)
2980                                 {
2981                                         const unsigned testRow = m_selection[i];
2982                                         // all rows above us are not affected, so skip them
2983                                         if(testRow <= row)
2984                                                 continue;
2985
2986                                         m_selection[i] -= rowAdjustment;
2987                                 }
2988
2989                                 // if the "current row" is being collapsed away we change it to the current row ;-)
2990                                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
2991                                         ChangeCurrentRow(row);
2992                                 else if(m_currentRow > row)
2993                                         ChangeCurrentRow(m_currentRow - rowAdjustment);
2994                         }
2995
2996             m_count = -1;
2997             UpdateDisplay();
2998             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,nd->GetItem());
2999         }
3000         else
3001         {
3002             node = node->GetParent();
3003             if( node != NULL )
3004             {
3005                 int  parent = GetRowByItem( node->GetItem() );
3006                 if( parent >= 0 )
3007                 {
3008                     SelectRow( row, false);
3009                     SelectRow(parent , true );
3010                     ChangeCurrentRow( parent );
3011                     SendSelectionChangedEvent( node->GetItem() );
3012                 }
3013             }
3014         }
3015         if( !nd->HasChildren())
3016             delete nd;
3017     }
3018 }
3019
3020 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3021 {
3022     wxDataViewModel * model = GetOwner()->GetModel();
3023     if( model == NULL )
3024         return NULL;
3025
3026     if (!item.IsOk())
3027         return m_root;
3028
3029     //Compose the a parent-chain of the finding item
3030     ItemList list;
3031     list.DeleteContents( true );
3032     wxDataViewItem it( item );
3033     while( it.IsOk() )
3034     {
3035         wxDataViewItem * pItem = new wxDataViewItem( it );
3036         list.Insert( pItem );
3037         it = model->GetParent( it );
3038     }
3039
3040     //Find the item along the parent-chain.
3041     //This algorithm is designed to speed up the node-finding method
3042     wxDataViewTreeNode * node = m_root;
3043     for( ItemList::const_iterator iter = list.begin(); iter !=list.end(); iter++ )
3044     {
3045         if( node->HasChildren() )
3046         {
3047             if( node->GetChildrenNumber() == 0 )
3048             {
3049                 SortPrepare();
3050                 ::BuildTreeHelper(model, node->GetItem(), node);
3051             }
3052
3053             wxDataViewTreeNodes nodes = node->GetNodes();
3054             unsigned int i;
3055             bool found = false;
3056
3057             for (i = 0; i < nodes.GetCount(); i ++)
3058             {
3059                 if (nodes[i]->GetItem() == (**iter))
3060                 {
3061                     if (nodes[i]->GetItem() == item)
3062                        return nodes[i];
3063
3064                     node = nodes[i];
3065                     found = true;
3066                     break;
3067                 }
3068             }
3069             if (!found)
3070                 return NULL;
3071         }
3072         else
3073             return NULL;
3074     }
3075     return NULL;
3076 }
3077
3078 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column )
3079 {
3080     wxDataViewColumn *col = NULL;
3081     unsigned int cols = GetOwner()->GetColumnCount();
3082     unsigned int colnum = 0;
3083     int x, y;
3084     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3085     for (unsigned x_start = 0; colnum < cols; colnum++)
3086     {
3087         col = GetOwner()->GetColumnAt(colnum);
3088         if (col->IsHidden())
3089             continue;      // skip it!
3090
3091         unsigned int w = col->GetWidth();
3092         if (x_start+w >= (unsigned int)x)
3093             break;
3094
3095         x_start += w;
3096     }
3097
3098     column = col;
3099     item = GetItemByRow( GetLineAt( y ) );
3100 }
3101
3102 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column )
3103 {
3104     int row = GetRowByItem(item);
3105     int y = GetLineStart( row );
3106     int h = GetLineHeight( m_lineHeight );
3107     int x = 0;
3108     wxDataViewColumn *col = NULL;
3109     for( int i = 0, cols = GetOwner()->GetColumnCount(); i < cols; i ++ )
3110     {
3111        col = GetOwner()->GetColumnAt( i );
3112        x += col->GetWidth();
3113        if( GetOwner()->GetColumnAt(i+1) == column )
3114            break;
3115     }
3116     int w = col->GetWidth();
3117     m_owner->CalcScrolledPosition( x, y, &x, &y );
3118     return wxRect(x, y, w, h);
3119 }
3120
3121 int wxDataViewMainWindow::RecalculateCount()
3122 {
3123     if (!m_root)
3124     {
3125         wxDataViewIndexListModel *list_model = (wxDataViewIndexListModel*) GetOwner()->GetModel();
3126 #ifndef __WXMAC__
3127         return list_model->GetLastIndex() + 1;
3128 #else
3129         return list_model->GetLastIndex() - 1;
3130 #endif
3131     }
3132     else
3133     {
3134         return m_root->GetSubTreeCount();
3135     }
3136 }
3137
3138 class ItemToRowJob : public DoJob
3139 {
3140 public:
3141     ItemToRowJob(const wxDataViewItem& item_, ItemList::const_iterator iter)
3142         : m_iter(iter),
3143           item(item_)
3144     {
3145         ret = -1;
3146     }
3147
3148     //Maybe binary search will help to speed up this process
3149     virtual int operator() ( wxDataViewTreeNode * node)
3150     {
3151          ret ++;
3152          if( node->GetItem() == item )
3153          {
3154              return DoJob::OK;
3155          }
3156
3157          if( node->GetItem() == **m_iter )
3158          {
3159              m_iter++;
3160              return DoJob::CONT;
3161          }
3162          else
3163          {
3164              ret += node->GetSubTreeCount();
3165              return DoJob::IGR;
3166          }
3167
3168     }
3169
3170     virtual int operator() ( void * n )
3171     {
3172         ret ++;
3173         if( n == item.GetID() )
3174             return DoJob::OK;
3175         return DoJob::CONT;
3176     }
3177     //the row number is begin from zero
3178     int GetResult() { return ret -1; }
3179
3180 private:
3181     ItemList::const_iterator  m_iter;
3182     wxDataViewItem item;
3183     int ret;
3184
3185 };
3186
3187 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3188 {
3189     const wxDataViewModel * model = GetOwner()->GetModel();
3190     if( model == NULL )
3191         return -1;
3192
3193     if (!m_root)
3194     {
3195         return wxPtrToUInt( item.GetID() );
3196     }
3197     else
3198     {
3199         if( !item.IsOk() )
3200             return -1;
3201
3202         //Compose the a parent-chain of the finding item
3203         ItemList list;
3204         wxDataViewItem * pItem;
3205         list.DeleteContents( true );
3206         wxDataViewItem it( item );
3207         while( it.IsOk() )
3208         {
3209             pItem = new wxDataViewItem( it );
3210             list.Insert( pItem );
3211             it = model->GetParent( it );
3212         }
3213         pItem = new wxDataViewItem( );
3214         list.Insert( pItem );
3215
3216         ItemToRowJob job( item, list.begin() );
3217         Walker(m_root , job );
3218         return job.GetResult();
3219     }
3220 }
3221
3222 static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node)
3223 {
3224     if( !model->IsContainer( item ) )
3225         return;
3226
3227     wxDataViewItemArray children;
3228     unsigned int num = model->GetChildren( item, children);
3229
3230     unsigned int index = 0;
3231     while( index < num )
3232     {
3233         if( model->IsContainer( children[index] ) )
3234         {
3235             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3236             n->SetItem(children[index]);
3237             n->SetHasChildren( true );
3238             node->AddNode( n );
3239         }
3240         else
3241         {
3242             node->AddLeaf( children[index].GetID() );
3243         }
3244         index ++;
3245     }
3246     node->SetSubTreeCount( num );
3247     wxDataViewTreeNode * n = node->GetParent();
3248     if( n != NULL)
3249         n->ChangeSubTreeCount(num);
3250
3251 }
3252
3253 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3254 {
3255     DestroyTree();
3256
3257     if (GetOwner()->GetModel()->IsVirtualListModel())
3258     {
3259         m_count = -1;
3260         return;
3261     }
3262
3263     m_root = new wxDataViewTreeNode( NULL );
3264     m_root->SetHasChildren(true);
3265
3266     //First we define a invalid item to fetch the top-level elements
3267     wxDataViewItem item;
3268     SortPrepare();
3269     BuildTreeHelper( model, item, m_root);
3270     m_count = -1;
3271 }
3272
3273 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3274 {
3275     if( node->GetNodeNumber() != 0 )
3276     {
3277         int len = node->GetNodeNumber();
3278         int i = 0;
3279         wxDataViewTreeNodes& nodes = node->GetNodes();
3280         for(; i < len; i ++ )
3281         {
3282             DestroyTreeHelper(nodes[i]);
3283         }
3284     }
3285     delete node;
3286 }
3287
3288 void wxDataViewMainWindow::DestroyTree()
3289 {
3290     if (!IsVirtualList())
3291     {
3292        ::DestroyTreeHelper(m_root);
3293         m_count = 0;
3294         m_root = NULL;
3295     }
3296 }
3297
3298 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3299 {
3300     if ( GetParent()->HandleAsNavigationKey(event) )
3301         return;
3302
3303     // no item -> nothing to do
3304     if (!HasCurrentRow())
3305     {
3306         event.Skip();
3307         return;
3308     }
3309
3310     // don't use m_linesPerPage directly as it might not be computed yet
3311     const int pageSize = GetCountPerPage();
3312     wxCHECK_RET( pageSize, _T("should have non zero page size") );
3313
3314     switch ( event.GetKeyCode() )
3315     {
3316         case WXK_RETURN:
3317         {
3318             if (m_currentRow >= 0)
3319             {
3320                 wxWindow *parent = GetParent();
3321                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3322                 le.SetItem( GetItemByRow(m_currentRow) );
3323                 le.SetEventObject(parent);
3324                 le.SetModel(GetOwner()->GetModel());
3325
3326                 parent->GetEventHandler()->ProcessEvent(le);
3327             }
3328             break;
3329         }
3330         case WXK_UP:
3331             if ( m_currentRow > 0 )
3332                 OnArrowChar( m_currentRow - 1, event );
3333             break;
3334
3335         case WXK_DOWN:
3336             if ( m_currentRow < GetRowCount() - 1 )
3337                 OnArrowChar( m_currentRow + 1, event );
3338             break;
3339         //Add the process for tree expanding/collapsing
3340         case WXK_LEFT:
3341          OnCollapsing(m_currentRow);
3342          break;
3343      case WXK_RIGHT:
3344          OnExpanding( m_currentRow);
3345          break;
3346         case WXK_END:
3347             if (!IsEmpty())
3348                 OnArrowChar( GetRowCount() - 1, event );
3349             break;
3350
3351         case WXK_HOME:
3352             if (!IsEmpty())
3353                 OnArrowChar( 0, event );
3354             break;
3355
3356         case WXK_PAGEUP:
3357             {
3358                 int steps = pageSize - 1;
3359                 int index = m_currentRow - steps;
3360                 if (index < 0)
3361                     index = 0;
3362
3363                 OnArrowChar( index, event );
3364             }
3365             break;
3366
3367         case WXK_PAGEDOWN:
3368             {
3369                 int steps = pageSize - 1;
3370                 unsigned int index = m_currentRow + steps;
3371                 unsigned int count = GetRowCount();
3372                 if ( index >= count )
3373                     index = count - 1;
3374
3375                 OnArrowChar( index, event );
3376             }
3377             break;
3378
3379         default:
3380             event.Skip();
3381     }
3382 }
3383
3384 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3385 {
3386     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3387     {
3388         // let the base handle mouse wheel events.
3389         event.Skip();
3390         return;
3391     }
3392
3393     int x = event.GetX();
3394     int y = event.GetY();
3395     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3396     wxDataViewColumn *col = NULL;
3397
3398     int xpos = 0;
3399     unsigned int cols = GetOwner()->GetColumnCount();
3400     unsigned int i;
3401     for (i = 0; i < cols; i++)
3402     {
3403         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3404         if (c->IsHidden())
3405             continue;      // skip it!
3406
3407         if (x < xpos + c->GetWidth())
3408         {
3409             col = c;
3410             break;
3411         }
3412         xpos += c->GetWidth();
3413     }
3414     if (!col)
3415         return;
3416
3417     wxDataViewRenderer *cell = col->GetRenderer();
3418     unsigned int current = GetLineAt( y );
3419     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3420     {
3421         // Unselect all if below the last row ?
3422         return;
3423     }
3424
3425     //Test whether the mouse is hovered on the tree item button
3426     bool hoverOverExpander = false;
3427     if ((!IsVirtualList()) && (GetOwner()->GetExpanderColumn() == col))
3428     {
3429         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3430         if( node!=NULL && node->HasChildren() )
3431         {
3432             int indent = node->GetIndentLevel();
3433             indent = GetOwner()->GetIndent()*indent;
3434
3435                         // we make the rectangle we are looking in a bit bigger than the actual
3436                         // visual expander so the user can hit that little thing reliably
3437             wxRect rect( xpos + indent,
3438                          GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3439                          m_lineHeight, m_lineHeight);
3440             if( rect.Contains(x, y) )
3441             {
3442                 //So the mouse is over the expander
3443                 hoverOverExpander = true;
3444                 if (m_underMouse && m_underMouse != node)
3445                 {
3446                     //wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3447                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3448                 }
3449                 if (m_underMouse != node)
3450                 {
3451                     //wxLogMessage("Do the row: %d", current);
3452                     RefreshRow(current);
3453                 }
3454                 m_underMouse = node;
3455             }
3456         }
3457         if (node!=NULL && !node->HasChildren())
3458             delete node;
3459     }
3460     if (!hoverOverExpander)
3461     {
3462         if (m_underMouse != NULL)
3463         {
3464             //wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3465             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3466             m_underMouse = NULL;
3467         }
3468     }
3469
3470     wxDataViewModel *model = GetOwner()->GetModel();
3471
3472 #if wxUSE_DRAG_AND_DROP
3473     if (event.Dragging())
3474     {
3475         if (m_dragCount == 0)
3476         {
3477             // we have to report the raw, physical coords as we want to be
3478             // able to call HitTest(event.m_pointDrag) from the user code to
3479             // get the item being dragged
3480             m_dragStart = event.GetPosition();
3481         }
3482
3483         m_dragCount++;
3484
3485         if (m_dragCount != 3)
3486             return;
3487
3488         if (event.LeftIsDown())
3489         {
3490             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y, &m_dragStart.x, &m_dragStart.y );
3491             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3492             wxDataViewItem item = GetItemByRow( drag_item_row );
3493
3494             // Notify cell about drag
3495             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3496             event.SetEventObject( m_owner );
3497             event.SetItem( item );
3498             event.SetModel( model );
3499             if (!m_owner->HandleWindowEvent( event ))
3500                 return;
3501
3502             if (!event.IsAllowed())
3503                 return;
3504
3505             wxDataObject *obj = event.GetDataObject();
3506             if (!obj)
3507                 return;
3508
3509             wxDataViewDropSource drag( this, drag_item_row );
3510             drag.SetData( *obj );
3511             /* wxDragResult res = */ drag.DoDragDrop();
3512             delete obj;
3513         }
3514         return;
3515     }
3516     else
3517     {
3518         m_dragCount = 0;
3519     }
3520 #endif // wxUSE_DRAG_AND_DROP
3521
3522     bool simulateClick = false;
3523
3524     if (event.ButtonDClick())
3525     {
3526         m_renameTimer->Stop();
3527         m_lastOnSame = false;
3528     }
3529
3530     wxDataViewItem item = GetItemByRow(current);
3531     bool ignore_other_columns =
3532         ((GetOwner()->GetExpanderColumn() != col) &&
3533          (model->IsContainer(item)) &&
3534          (!model->HasContainerColumns(item)));
3535
3536     if (event.LeftDClick())
3537     {
3538                 if(hoverOverExpander)
3539                 {
3540                         // a double click on the expander will be converted into a "simulated" normal click
3541                         simulateClick = true;
3542                 }
3543                 else if ( current == m_lineLastClicked )
3544         {
3545             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3546             {
3547                 wxVariant value;
3548                 model->GetValue( value, item, col->GetModelColumn() );
3549                 cell->SetValue( value );
3550                 wxRect cell_rect( xpos, GetLineStart( current ),
3551                                   col->GetWidth(), GetLineHeight( current ) );
3552                 cell->Activate( cell_rect, model, item, col->GetModelColumn() );
3553
3554             }
3555             else
3556             {
3557                 wxWindow *parent = GetParent();
3558                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3559                 le.SetItem( item );
3560                 le.SetEventObject(parent);
3561                 le.SetModel(GetOwner()->GetModel());
3562
3563                 parent->GetEventHandler()->ProcessEvent(le);
3564             }
3565             return;
3566         }
3567         else
3568         {
3569             // The first click was on another item, so don't interpret this as
3570             // a double click, but as a simple click instead
3571             simulateClick = true;
3572         }
3573     }
3574
3575     if (event.LeftUp() && !hoverOverExpander)
3576     {
3577         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3578         {
3579             // select single line
3580             SelectAllRows( false );
3581             SelectRow( m_lineSelectSingleOnUp, true );
3582             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3583         }
3584
3585         //If the user click the expander, we do not do editing even if the column with expander are editable
3586         if (m_lastOnSame && !ignore_other_columns)
3587         {
3588             if ((col == m_currentCol) && (current == m_currentRow) &&
3589                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3590             {
3591                 m_renameTimer->Start( 100, true );
3592             }
3593         }
3594
3595         m_lastOnSame = false;
3596         m_lineSelectSingleOnUp = (unsigned int)-1;
3597     }
3598     else if(!event.LeftUp())
3599     {
3600         // This is necessary, because after a DnD operation in
3601         // from and to ourself, the up event is swallowed by the
3602         // DnD code. So on next non-up event (which means here and
3603         // now) m_lineSelectSingleOnUp should be reset.
3604         m_lineSelectSingleOnUp = (unsigned int)-1;
3605     }
3606
3607     if (event.RightDown())
3608     {
3609         m_lineBeforeLastClicked = m_lineLastClicked;
3610         m_lineLastClicked = current;
3611
3612         // If the item is already selected, do not update the selection.
3613         // Multi-selections should not be cleared if a selected item is clicked.
3614         if (!IsRowSelected(current))
3615         {
3616             SelectAllRows(false);
3617             ChangeCurrentRow(current);
3618             SelectRow(m_currentRow,true);
3619             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3620         }
3621
3622         wxVariant value;
3623         model->GetValue( value, item, col->GetModelColumn() );
3624         wxWindow *parent = GetParent();
3625         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3626         le.SetItem( item );
3627         le.SetEventObject(parent);
3628         le.SetModel(GetOwner()->GetModel());
3629         le.SetValue(value);
3630         parent->GetEventHandler()->ProcessEvent(le);
3631     }
3632     else if (event.MiddleDown())
3633     {
3634     }
3635
3636         if((event.LeftDown() || simulateClick) && hoverOverExpander)
3637         {
3638                 wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3639                 // hoverOverExpander being true tells us that our node must be valid and have children.
3640                 // So we don't need any extra checks.
3641                 if( node->IsOpen() )
3642                         OnCollapsing(current);
3643                 else
3644                         OnExpanding(current);
3645         }
3646         else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3647     {
3648         SetFocus();
3649
3650         m_lineBeforeLastClicked = m_lineLastClicked;
3651         m_lineLastClicked = current;
3652
3653         unsigned int oldCurrentRow = m_currentRow;
3654         bool oldWasSelected = IsRowSelected(m_currentRow);
3655
3656         bool cmdModifierDown = event.CmdDown();
3657         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3658         {
3659             if ( IsSingleSel() || !IsRowSelected(current) )
3660             {
3661                 SelectAllRows( false );
3662                 ChangeCurrentRow(current);
3663                 SelectRow(m_currentRow,true);
3664                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3665             }
3666             else // multi sel & current is highlighted & no mod keys
3667             {
3668                 m_lineSelectSingleOnUp = current;
3669                 ChangeCurrentRow(current); // change focus
3670             }
3671         }
3672         else // multi sel & either ctrl or shift is down
3673         {
3674             if (cmdModifierDown)
3675             {
3676                 ChangeCurrentRow(current);
3677                 ReverseRowSelection(m_currentRow);
3678                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3679             }
3680             else if (event.ShiftDown())
3681             {
3682                 ChangeCurrentRow(current);
3683
3684                 unsigned int lineFrom = oldCurrentRow,
3685                        lineTo = current;
3686
3687                 if ( lineTo < lineFrom )
3688                 {
3689                     lineTo = lineFrom;
3690                     lineFrom = m_currentRow;
3691                 }
3692
3693                 SelectRows(lineFrom, lineTo, true);
3694                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3695             }
3696             else // !ctrl, !shift
3697             {
3698                 // test in the enclosing if should make it impossible
3699                 wxFAIL_MSG( _T("how did we get here?") );
3700             }
3701         }
3702
3703         if (m_currentRow != oldCurrentRow)
3704             RefreshRow( oldCurrentRow );
3705
3706         wxDataViewColumn *oldCurrentCol = m_currentCol;
3707
3708         // Update selection here...
3709         m_currentCol = col;
3710
3711         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3712                         (current == oldCurrentRow)) && oldWasSelected;
3713
3714         // Call LeftClick after everything else as under GTK+
3715         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3716         {
3717             // notify cell about right click
3718             wxVariant value;
3719             model->GetValue( value, item, col->GetModelColumn() );
3720             cell->SetValue( value );
3721             wxRect cell_rect( xpos, GetLineStart( current ),
3722                           col->GetWidth(), GetLineHeight( current ) );
3723             /* ignore ret */ cell->LeftClick( event.GetPosition(), cell_rect, model, item, col->GetModelColumn());
3724         }
3725     }
3726 }
3727
3728 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3729 {
3730     m_hasFocus = true;
3731
3732     if (HasCurrentRow())
3733         Refresh();
3734
3735     event.Skip();
3736 }
3737
3738 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3739 {
3740     m_hasFocus = false;
3741
3742     if (HasCurrentRow())
3743         Refresh();
3744
3745     event.Skip();
3746 }
3747
3748 wxDataViewItem wxDataViewMainWindow::GetSelection() const
3749 {
3750     if( m_selection.GetCount() != 1 )
3751         return wxDataViewItem();
3752
3753     return GetItemByRow( m_selection.Item(0));
3754 }
3755
3756 //-----------------------------------------------------------------------------
3757 // wxDataViewCtrl
3758 //-----------------------------------------------------------------------------
3759 WX_DEFINE_LIST(wxDataViewColumnList)
3760
3761 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3762
3763 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3764     EVT_SIZE(wxDataViewCtrl::OnSize)
3765 END_EVENT_TABLE()
3766
3767 wxDataViewCtrl::~wxDataViewCtrl()
3768 {
3769     if (m_notifier)
3770         GetModel()->RemoveNotifier( m_notifier );
3771
3772     m_cols.Clear();
3773 }
3774
3775 void wxDataViewCtrl::Init()
3776 {
3777     m_cols.DeleteContents(true);
3778     m_notifier = NULL;
3779
3780     // No sorting column at start
3781     m_sortingColumnIdx = wxNOT_FOUND;
3782
3783     m_headerArea = NULL;
3784 }
3785
3786 bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
3787            const wxPoint& pos, const wxSize& size,
3788            long style, const wxValidator& validator )
3789 {
3790 //    if ( (style & wxBORDER_MASK) == 0)
3791 //        style |= wxBORDER_SUNKEN;
3792
3793     Init();
3794
3795     if (!wxControl::Create( parent, id, pos, size,
3796                             style | wxScrolledWindowStyle, validator))
3797         return false;
3798
3799     SetInitialSize(size);
3800
3801 #ifdef __WXMAC__
3802     MacSetClipChildren( true );
3803 #endif
3804
3805     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
3806
3807     if (HasFlag(wxDV_NO_HEADER))
3808         m_headerArea = NULL;
3809     else
3810         m_headerArea = new wxDataViewHeaderWindow(this);
3811
3812     SetTargetWindow( m_clientArea );
3813
3814     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
3815     if (m_headerArea)
3816         sizer->Add( m_headerArea, 0, wxGROW );
3817     sizer->Add( m_clientArea, 1, wxGROW );
3818     SetSizer( sizer );
3819
3820     return true;
3821 }
3822
3823 wxBorder wxDataViewCtrl::GetDefaultBorder() const
3824 {
3825     return wxBORDER_THEME;
3826 }
3827
3828 #ifdef __WXMSW__
3829 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
3830                                        WXWPARAM wParam,
3831                                        WXLPARAM lParam)
3832 {
3833     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
3834
3835 #ifndef __WXWINCE__
3836     // we need to process arrows ourselves for scrolling
3837     if ( nMsg == WM_GETDLGCODE )
3838     {
3839         rc |= DLGC_WANTARROWS;
3840     }
3841 #endif
3842
3843     return rc;
3844 }
3845 #endif
3846
3847 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
3848 {
3849     wxSize newsize = size;
3850     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
3851        newsize.y -= m_headerArea->GetSize().y;
3852
3853     return newsize;
3854 }
3855
3856 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
3857 {
3858     // We need to override OnSize so that our scrolled
3859     // window a) does call Layout() to use sizers for
3860     // positioning the controls but b) does not query
3861     // the sizer for their size and use that for setting
3862     // the scrollable area as set that ourselves by
3863     // calling SetScrollbar() further down.
3864
3865     Layout();
3866
3867     AdjustScrollbars();
3868 }
3869
3870 void wxDataViewCtrl::SetFocus()
3871 {
3872     if (m_clientArea)
3873         m_clientArea->SetFocus();
3874 }
3875
3876 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
3877 {
3878     if (!wxDataViewCtrlBase::AssociateModel( model ))
3879         return false;
3880
3881     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
3882
3883     model->AddNotifier( m_notifier );
3884
3885     m_clientArea->DestroyTree();
3886
3887     m_clientArea->BuildTree(model);
3888
3889     m_clientArea->UpdateDisplay();
3890
3891     return true;
3892 }
3893
3894 #if wxUSE_DRAG_AND_DROP
3895
3896 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
3897 {
3898     return m_clientArea->EnableDragSource( format );
3899 }
3900
3901 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
3902 {
3903     return m_clientArea->EnableDropTarget( format );
3904 }
3905
3906 #endif // wxUSE_DRAG_AND_DROP
3907
3908 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
3909 {
3910     if (!wxDataViewCtrlBase::AppendColumn(col))
3911         return false;
3912
3913     m_cols.Append( col );
3914     OnColumnsCountChanged();
3915     return true;
3916 }
3917
3918 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
3919 {
3920     if (!wxDataViewCtrlBase::PrependColumn(col))
3921         return false;
3922
3923     m_cols.Insert( col );
3924     OnColumnsCountChanged();
3925     return true;
3926 }
3927
3928 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
3929 {
3930     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
3931         return false;
3932
3933     m_cols.Insert( pos, col );
3934     OnColumnsCountChanged();
3935     return true;
3936 }
3937
3938 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
3939 {
3940     if ( m_headerArea )
3941         m_headerArea->UpdateColumn(idx);
3942
3943     m_clientArea->UpdateDisplay();
3944 }
3945
3946 void wxDataViewCtrl::OnColumnsCountChanged()
3947 {
3948     if (m_headerArea)
3949         m_headerArea->SetColumnCount(GetColumnCount());
3950
3951     m_clientArea->UpdateDisplay();
3952 }
3953
3954 void wxDataViewCtrl::DoSetExpanderColumn()
3955 {
3956     m_clientArea->UpdateDisplay();
3957 }
3958
3959 void wxDataViewCtrl::DoSetIndent()
3960 {
3961     m_clientArea->UpdateDisplay();
3962 }
3963
3964 unsigned int wxDataViewCtrl::GetColumnCount() const
3965 {
3966     return m_cols.GetCount();
3967 }
3968
3969 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
3970 {
3971     return m_cols[idx];
3972 }
3973
3974 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
3975 {
3976     // columns can't be reordered if there is no header window which allows
3977     // to do this
3978     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
3979                                       : pos;
3980
3981     return GetColumn(idx);
3982 }
3983
3984 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
3985 {
3986     const unsigned count = m_cols.size();
3987     for ( unsigned n = 0; n < count; n++ )
3988     {
3989         if ( m_cols[n] == column )
3990             return n;
3991     }
3992
3993     return wxNOT_FOUND;
3994 }
3995
3996 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
3997                                  unsigned int WXUNUSED(new_pos))
3998 {
3999     // do _not_ reorder m_cols elements here, they should always be in the
4000     // order in which columns were added, we only display the columns in
4001     // different order
4002     m_clientArea->UpdateDisplay();
4003 }
4004
4005 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4006 {
4007     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4008     if (!ret)
4009         return false;
4010
4011     m_cols.Erase(ret);
4012     OnColumnsCountChanged();
4013
4014     return true;
4015 }
4016
4017 bool wxDataViewCtrl::ClearColumns()
4018 {
4019     m_cols.Clear();
4020     OnColumnsCountChanged();
4021     return true;
4022 }
4023
4024 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4025 {
4026     int ret = 0,
4027         dummy = 0;
4028     unsigned int len = GetColumnCount();
4029     for ( unsigned int i = 0; i < len; i++ )
4030     {
4031         wxDataViewColumn * col = GetColumnAt(i);
4032         if (col->IsHidden())
4033             continue;
4034         ret += col->GetWidth();
4035         if (column==col)
4036         {
4037             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4038             break;
4039         }
4040     }
4041     return ret;
4042 }
4043
4044 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4045 {
4046     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4047                                              : GetColumn(m_sortingColumnIdx);
4048 }
4049
4050 //Selection code with wxDataViewItem as parameters
4051 wxDataViewItem wxDataViewCtrl::GetSelection() const
4052 {
4053     return m_clientArea->GetSelection();
4054 }
4055
4056 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4057 {
4058     sel.Empty();
4059     wxDataViewSelection selection = m_clientArea->GetSelections();
4060     int len = selection.GetCount();
4061     for( int i = 0; i < len; i ++)
4062     {
4063         unsigned int row = selection[i];
4064         sel.Add( m_clientArea->GetItemByRow( row ) );
4065     }
4066     return len;
4067 }
4068
4069 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4070 {
4071     wxDataViewSelection selection(wxDataViewSelectionCmp);
4072
4073     wxDataViewItem last_parent;
4074
4075     int len = sel.GetCount();
4076     for( int i = 0; i < len; i ++ )
4077     {
4078         wxDataViewItem item = sel[i];
4079         wxDataViewItem parent = GetModel()->GetParent( item );
4080         if (parent)
4081         {
4082             if (parent != last_parent)
4083                 ExpandAncestors(item);
4084         }
4085
4086         last_parent = parent;
4087         int row = m_clientArea->GetRowByItem( item );
4088         if( row >= 0 )
4089             selection.Add( static_cast<unsigned int>(row) );
4090     }
4091
4092     m_clientArea->SetSelections( selection );
4093 }
4094
4095 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4096 {
4097     ExpandAncestors( item );
4098
4099     int row = m_clientArea->GetRowByItem( item );
4100     if( row >= 0 )
4101     {
4102         //Unselect all rows before select another in the single select mode
4103         if (m_clientArea->IsSingleSel())
4104             m_clientArea->SelectAllRows(false);
4105         m_clientArea->SelectRow(row, true);
4106     }
4107 }
4108
4109 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4110 {
4111     int row = m_clientArea->GetRowByItem( item );
4112     if( row >= 0 )
4113         m_clientArea->SelectRow(row, false);
4114 }
4115
4116 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4117 {
4118     int row = m_clientArea->GetRowByItem( item );
4119     if( row >= 0 )
4120     {
4121         return m_clientArea->IsRowSelected(row);
4122     }
4123     return false;
4124 }
4125
4126 //Selection code with row number as parameter
4127 int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
4128 {
4129     sel.Empty();
4130     wxDataViewSelection selection = m_clientArea->GetSelections();
4131     int len = selection.GetCount();
4132     for( int i = 0; i < len; i ++)
4133     {
4134         unsigned int row = selection[i];
4135         sel.Add( row );
4136     }
4137     return len;
4138 }
4139
4140 void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )
4141 {
4142     wxDataViewSelection selection(wxDataViewSelectionCmp);
4143     int len = sel.GetCount();
4144     for( int i = 0; i < len; i ++ )
4145     {
4146         int row = sel[i];
4147         if( row >= 0 )
4148             selection.Add( static_cast<unsigned int>(row) );
4149     }
4150     m_clientArea->SetSelections( selection );
4151 }
4152
4153 void wxDataViewCtrl::Select( int row )
4154 {
4155     if( row >= 0 )
4156     {
4157         if (m_clientArea->IsSingleSel())
4158             m_clientArea->SelectAllRows(false);
4159         m_clientArea->SelectRow( row, true );
4160     }
4161 }
4162
4163 void wxDataViewCtrl::Unselect( int row )
4164 {
4165     if( row >= 0 )
4166         m_clientArea->SelectRow(row, false);
4167 }
4168
4169 bool wxDataViewCtrl::IsSelected( int row ) const
4170 {
4171     if( row >= 0 )
4172         return m_clientArea->IsRowSelected(row);
4173     return false;
4174 }
4175
4176 void wxDataViewCtrl::SelectRange( int from, int to )
4177 {
4178     wxArrayInt sel;
4179     for( int i = from; i < to; i ++ )
4180         sel.Add( i );
4181     m_clientArea->Select(sel);
4182 }
4183
4184 void wxDataViewCtrl::UnselectRange( int from, int to )
4185 {
4186     wxDataViewSelection sel = m_clientArea->GetSelections();
4187     for( int i = from; i < to; i ++ )
4188         if( sel.Index( i ) != wxNOT_FOUND )
4189             sel.Remove( i );
4190     m_clientArea->SetSelections(sel);
4191 }
4192
4193 void wxDataViewCtrl::SelectAll()
4194 {
4195     m_clientArea->SelectAllRows(true);
4196 }
4197
4198 void wxDataViewCtrl::UnselectAll()
4199 {
4200     m_clientArea->SelectAllRows(false);
4201 }
4202
4203 void wxDataViewCtrl::EnsureVisible( int row, int column )
4204 {
4205     if( row < 0 )
4206         row = 0;
4207     if( row > (int) m_clientArea->GetRowCount() )
4208         row = m_clientArea->GetRowCount();
4209
4210     int first = m_clientArea->GetFirstVisibleRow();
4211     int last = m_clientArea->GetLastVisibleRow();
4212     if( row < first )
4213         m_clientArea->ScrollTo( row, column );
4214     else if( row > last )
4215         m_clientArea->ScrollTo( row - last + first, column );
4216     else
4217         m_clientArea->ScrollTo( first, column );
4218 }
4219
4220 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4221 {
4222     ExpandAncestors( item );
4223
4224     m_clientArea->RecalculateDisplay();
4225
4226     int row = m_clientArea->GetRowByItem(item);
4227     if( row >= 0 )
4228     {
4229         if( column == NULL )
4230             EnsureVisible(row, -1);
4231         else
4232             EnsureVisible( row, GetColumnIndex(column) );
4233     }
4234
4235 }
4236
4237 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column ) const
4238 {
4239     m_clientArea->HitTest(point, item, column);
4240 }
4241
4242 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column ) const
4243 {
4244     return m_clientArea->GetItemRect(item, column);
4245 }
4246
4247 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4248 {
4249     return m_clientArea->GetItemByRow( row );
4250 }
4251
4252 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4253 {
4254     return m_clientArea->GetRowByItem( item );
4255 }
4256
4257 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4258 {
4259     int row = m_clientArea->GetRowByItem( item );
4260     if (row != -1)
4261         m_clientArea->Expand(row);
4262 }
4263
4264 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4265 {
4266     int row = m_clientArea->GetRowByItem( item );
4267     if (row != -1)
4268         m_clientArea->Collapse(row);
4269 }
4270
4271 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4272 {
4273     int row = m_clientArea->GetRowByItem( item );
4274     if (row != -1)
4275         return m_clientArea->IsExpanded(row);
4276     return false;
4277 }
4278
4279
4280  #endif
4281     // !wxUSE_GENERICDATAVIEWCTRL
4282
4283 #endif
4284     // wxUSE_DATAVIEWCTRL