src/generic/datavgen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datavgen.cpp
   3 // Purpose:     wxDataViewCtrl generic implementation
   4 // Author:      Robert Roebling
   5 // Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_DATAVIEWCTRL
  19
  20 #include "wx/dataview.h"
  21
  22 #ifdef wxUSE_GENERICDATAVIEWCTRL
  23
  24 #ifndef WX_PRECOMP
  25     #ifdef __WXMSW__
  26         #include "wx/msw/private.h"
  27         #include "wx/msw/wrapwin.h"
  28         #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  29     #endif
  30     #include "wx/sizer.h"
  31     #include "wx/log.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/timer.h"
  34     #include "wx/settings.h"
  35     #include "wx/msgdlg.h"
  36     #include "wx/dcscreen.h"
  37     #include "wx/frame.h"
  38 #endif
  39
  40 #include "wx/stockitem.h"
  41 #include "wx/calctrl.h"
  42 #include "wx/popupwin.h"
  43 #include "wx/renderer.h"
  44 #include "wx/dcbuffer.h"
  45 #include "wx/icon.h"
  46 #include "wx/list.h"
  47 #include "wx/listimpl.cpp"
  48 #include "wx/imaglist.h"
  49 #include "wx/headerctrl.h"
  50 #include "wx/dnd.h"
  51
  52 //-----------------------------------------------------------------------------
  53 // classes
  54 //-----------------------------------------------------------------------------
  55
  56 class wxDataViewCtrl;
  57
  58 static const int SCROLL_UNIT_X = 15;
  59
  60 // the cell padding on the left/right
  61 static const int PADDING_RIGHTLEFT = 3;
  62
  63 // the expander space margin
  64 static const int EXPANDER_MARGIN = 4;
  65
  66 #ifdef __WXMSW__
  67 static const int EXPANDER_OFFSET = 4;
  68 #else
  69 static const int EXPANDER_OFFSET = 1;
  70 #endif
  71
  72 // Below is the compare stuff.
  73 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  74 // fast search when needed
  75 static wxDataViewModel* g_model;
  76 static int g_column = -2;
  77 static bool g_asending = true;
  78
  79 //-----------------------------------------------------------------------------
  80 // wxDataViewHeaderWindow
  81 //-----------------------------------------------------------------------------
  82
  83 class wxDataViewHeaderWindow : public wxHeaderCtrl
  84 {
  85 public:
  86     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
  87         : wxHeaderCtrl(parent)
  88     {
  89     }
  90
  91     wxDataViewCtrl *GetOwner() const
  92         { return static_cast<wxDataViewCtrl *>(GetParent()); }
  93
  94 protected:
  95     // implement/override wxHeaderCtrl functions by forwarding them to the main
  96     // control
  97     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
  98     {
  99         return *(GetOwner()->GetColumn(idx));
 100     }
 101
 102     // FIXME: currently unused
 103     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 104     {
 105         wxDataViewCtrl * const owner = GetOwner();
 106
 107         int widthContents = owner->GetBestColumnWidth(idx);
 108         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 109         owner->OnColumnChange(idx);
 110
 111         return true;
 112     }
 113
 114 private:
 115     bool SendEvent(wxEventType type, unsigned int n)
 116     {
 117         wxDataViewCtrl * const owner = GetOwner();
 118         wxDataViewEvent event(type, owner->GetId());
 119
 120         event.SetEventObject(owner);
 121         event.SetColumn(n);
 122         event.SetDataViewColumn(owner->GetColumn(n));
 123         event.SetModel(owner->GetModel());
 124
 125         // for events created by wxDataViewHeaderWindow the
 126         // row / value fields are not valid
 127         return owner->GetEventHandler()->ProcessEvent(event);
 128     }
 129
 130     void OnClick(wxHeaderCtrlEvent& event)
 131     {
 132         const unsigned idx = event.GetColumn();
 133
 134         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 135             return;
 136
 137         // default handling for the column click is to sort by this column or
 138         // toggle its sort order
 139         wxDataViewCtrl * const owner = GetOwner();
 140         wxDataViewColumn * const col = owner->GetColumn(idx);
 141         if ( !col->IsSortable() )
 142         {
 143             // no default handling for non-sortable columns
 144             event.Skip();
 145             return;
 146         }
 147
 148         if ( col->IsSortKey() )
 149         {
 150             // already using this column for sorting, just change the order
 151             col->ToggleSortOrder();
 152         }
 153         else // not using this column for sorting yet
 154         {
 155             // first unset the old sort column if any
 156             int oldSortKey = owner->GetSortingColumnIndex();
 157             if ( oldSortKey != wxNOT_FOUND )
 158             {
 159                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 160                 owner->OnColumnChange(oldSortKey);
 161             }
 162
 163             owner->SetSortingColumnIndex(idx);
 164             col->SetAsSortKey();
 165         }
 166
 167         wxDataViewModel * const model = owner->GetModel();
 168         if ( model )
 169             model->Resort();
 170
 171         owner->OnColumnChange(idx);
 172     }
 173
 174     void OnRClick(wxHeaderCtrlEvent& event)
 175     {
 176         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 177                         event.GetColumn()) )
 178             event.Skip();
 179     }
 180
 181     void OnResize(wxHeaderCtrlEvent& event)
 182     {
 183         wxDataViewCtrl * const owner = GetOwner();
 184
 185         const unsigned col = event.GetColumn();
 186         owner->GetColumn(col)->SetWidth(event.GetWidth());
 187         GetOwner()->OnColumnChange(col);
 188     }
 189
 190     void OnEndReorder(wxHeaderCtrlEvent& event)
 191     {
 192         wxDataViewCtrl * const owner = GetOwner();
 193         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 194                         event.GetNewOrder());
 195     }
 196
 197     DECLARE_EVENT_TABLE()
 198     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 199 };
 200
 201 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 202     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 203     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 204
 205     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 206     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 207
 208     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 209 END_EVENT_TABLE()
 210
 211 //-----------------------------------------------------------------------------
 212 // wxDataViewRenameTimer
 213 //-----------------------------------------------------------------------------
 214
 215 class wxDataViewRenameTimer: public wxTimer
 216 {
 217 private:
 218     wxDataViewMainWindow *m_owner;
 219
 220 public:
 221     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 222     void Notify();
 223 };
 224
 225 //-----------------------------------------------------------------------------
 226 // wxDataViewTreeNode
 227 //-----------------------------------------------------------------------------
 228
 229 class wxDataViewTreeNode;
 230 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 231 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 232
 233 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 234                                            wxDataViewTreeNode ** node2);
 235 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 236
 237 class wxDataViewTreeNode
 238 {
 239 public:
 240     wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
 241     {
 242         m_parent = parent;
 243         if (!parent)
 244             m_open = true;
 245         else
 246             m_open = false;
 247         m_hasChildren = false;
 248         m_subTreeCount  = 0;
 249     }
 250
 251     ~wxDataViewTreeNode()
 252     {
 253     }
 254
 255     wxDataViewTreeNode * GetParent() const { return m_parent; }
 256     void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
 257     wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
 258     wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
 259
 260     void AddNode( wxDataViewTreeNode * node )
 261     {
 262         m_leaves.Add( node->GetItem().GetID() );
 263         if (g_column >= -1)
 264             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 265         m_nodes.Add( node );
 266         if (g_column >= -1)
 267             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 268     }
 269     void AddLeaf( void * leaf )
 270     {
 271         m_leaves.Add( leaf );
 272         if (g_column >= -1)
 273             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 274     }
 275
 276     wxDataViewItem & GetItem() { return m_item; }
 277     const wxDataViewItem & GetItem() const { return m_item; }
 278     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 279
 280     unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
 281     unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
 282     int GetIndentLevel() const
 283     {
 284         int ret = 0;
 285         const wxDataViewTreeNode * node = this;
 286         while( node->GetParent()->GetParent() != NULL )
 287         {
 288             node = node->GetParent();
 289             ret ++;
 290         }
 291         return ret;
 292     }
 293
 294     bool IsOpen() const
 295     {
 296         return m_open;
 297     }
 298
 299     void ToggleOpen()
 300     {
 301         int len = m_nodes.GetCount();
 302         int sum = 0;
 303         for ( int i = 0;i < len; i ++)
 304             sum += m_nodes[i]->GetSubTreeCount();
 305
 306         sum += m_leaves.GetCount();
 307         if (m_open)
 308         {
 309             ChangeSubTreeCount(-sum);
 310             m_open = !m_open;
 311         }
 312         else
 313         {
 314             m_open = !m_open;
 315             ChangeSubTreeCount(sum);
 316         }
 317     }
 318     bool HasChildren() const { return m_hasChildren; }
 319     void SetHasChildren( bool has ){ m_hasChildren = has; }
 320
 321     void SetSubTreeCount( int num ) { m_subTreeCount = num; }
 322     int GetSubTreeCount() const { return m_subTreeCount; }
 323     void ChangeSubTreeCount( int num )
 324     {
 325         if( !m_open )
 326             return;
 327         m_subTreeCount += num;
 328         if( m_parent )
 329             m_parent->ChangeSubTreeCount(num);
 330     }
 331
 332     void Resort()
 333     {
 334         if (g_column >= -1)
 335         {
 336             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 337             int len = m_nodes.GetCount();
 338             for (int i = 0; i < len; i ++)
 339                 m_nodes[i]->Resort();
 340             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 341         }
 342     }
 343
 344 private:
 345     wxDataViewTreeNode  *m_parent;
 346     wxDataViewTreeNodes  m_nodes;
 347     wxDataViewTreeLeaves m_leaves;
 348     wxDataViewItem       m_item;
 349     bool                 m_open;
 350     bool                 m_hasChildren;
 351     int                  m_subTreeCount;
 352 };
 353
 354 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 355                                            wxDataViewTreeNode ** node2)
 356 {
 357     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 358 }
 359
 360 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 361 {
 362     return g_model->Compare( *id1, *id2, g_column, g_asending );
 363 }
 364
 365
 366 //-----------------------------------------------------------------------------
 367 // wxDataViewMainWindow
 368 //-----------------------------------------------------------------------------
 369
 370 WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,
 371                                             WXDLLIMPEXP_ADV);
 372 WX_DECLARE_LIST(wxDataViewItem, ItemList);
 373 WX_DEFINE_LIST(ItemList)
 374
 375 class wxDataViewMainWindow: public wxWindow
 376 {
 377 public:
 378     wxDataViewMainWindow( wxDataViewCtrl *parent,
 379                             wxWindowID id,
 380                             const wxPoint &pos = wxDefaultPosition,
 381                             const wxSize &size = wxDefaultSize,
 382                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 383     virtual ~wxDataViewMainWindow();
 384
 385     bool IsVirtualList() const { return m_root == NULL; }
 386
 387     // notifications from wxDataViewModel
 388     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 389     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 390     bool ItemChanged( const wxDataViewItem &item );
 391     bool ValueChanged( const wxDataViewItem &item, unsigned int col );
 392     bool Cleared();
 393     void Resort()
 394     {
 395         if (!IsVirtualList())
 396         {
 397             SortPrepare();
 398             m_root->Resort();
 399         }
 400         UpdateDisplay();
 401     }
 402
 403     void SortPrepare()
 404     {
 405         g_model = GetOwner()->GetModel();
 406         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 407         if( !col )
 408         {
 409             if (g_model->HasDefaultCompare())
 410                 g_column = -1;
 411             else
 412                 g_column = -2;
 413
 414             g_asending = true;
 415             return;
 416         }
 417         g_column = col->GetModelColumn();
 418         g_asending = col->IsSortOrderAscending();
 419     }
 420
 421     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 422     wxDataViewCtrl *GetOwner() { return m_owner; }
 423     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 424
 425 #if wxUSE_DRAG_AND_DROP
 426     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 427 #endif // wxUSE_DRAG_AND_DROP
 428     void OnPaint( wxPaintEvent &event );
 429     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 430     void OnChar( wxKeyEvent &event );
 431     void OnMouse( wxMouseEvent &event );
 432     void OnSetFocus( wxFocusEvent &event );
 433     void OnKillFocus( wxFocusEvent &event );
 434
 435     void UpdateDisplay();
 436     void RecalculateDisplay();
 437     void OnInternalIdle();
 438
 439     void OnRenameTimer();
 440
 441     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 442     void ScrollTo( int rows, int column );
 443
 444     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 445     void ChangeCurrentRow( unsigned int row );
 446
 447     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 448     bool IsEmpty() { return GetRowCount() == 0; }
 449
 450     int GetCountPerPage() const;
 451     int GetEndOfLastCol() const;
 452     unsigned int GetFirstVisibleRow() const;
 453
 454     // I change this method to un const because in the tree view,
 455     // the displaying number of the tree are changing along with the
 456     // expanding/collapsing of the tree nodes
 457     unsigned int GetLastVisibleRow();
 458     unsigned int GetRowCount();
 459
 460     wxDataViewItem GetSelection() const;
 461     wxDataViewSelection GetSelections(){ return m_selection; }
 462     void SetSelections( const wxDataViewSelection & sel )
 463         { m_selection = sel; UpdateDisplay(); }
 464     void Select( const wxArrayInt& aSelections );
 465     void SelectAllRows( bool on );
 466     void SelectRow( unsigned int row, bool on );
 467     void SelectRows( unsigned int from, unsigned int to, bool on );
 468     void ReverseRowSelection( unsigned int row );
 469     bool IsRowSelected( unsigned int row );
 470     void SendSelectionChangedEvent( const wxDataViewItem& item);
 471
 472     void RefreshRow( unsigned int row );
 473     void RefreshRows( unsigned int from, unsigned int to );
 474     void RefreshRowsAfter( unsigned int firstRow );
 475
 476     // returns the colour to be used for drawing the rules
 477     wxColour GetRuleColour() const
 478     {
 479         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 480     }
 481
 482     wxRect GetLineRect( unsigned int row ) const;
 483
 484     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 485     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 486     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 487
 488     // Some useful functions for row and item mapping
 489     wxDataViewItem GetItemByRow( unsigned int row ) const;
 490     int GetRowByItem( const wxDataViewItem & item ) const;
 491
 492     // Methods for building the mapping tree
 493     void BuildTree( wxDataViewModel  * model );
 494     void DestroyTree();
 495     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 496     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 497
 498     void Expand( unsigned int row );
 499     void Collapse( unsigned int row );
 500     bool IsExpanded( unsigned int row ) const;
 501     bool HasChildren( unsigned int row ) const;
 502
 503 #if wxUSE_DRAG_AND_DROP
 504     bool EnableDragSource( const wxDataFormat &format );
 505     bool EnableDropTarget( const wxDataFormat &format );
 506
 507     void RemoveDropHint();
 508     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 509     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 510     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 511     void OnLeave();
 512 #endif // wxUSE_DRAG_AND_DROP
 513
 514 private:
 515     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 516     // We did not need this temporarily
 517     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 518
 519     int RecalculateCount();
 520
 521     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 522
 523     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 524
 525 private:
 526     wxDataViewCtrl             *m_owner;
 527     int                         m_lineHeight;
 528     bool                        m_dirty;
 529
 530     wxDataViewColumn           *m_currentCol;
 531     unsigned int                m_currentRow;
 532     wxDataViewSelection         m_selection;
 533
 534     wxDataViewRenameTimer      *m_renameTimer;
 535     bool                        m_lastOnSame;
 536
 537     bool                        m_hasFocus;
 538
 539 #if wxUSE_DRAG_AND_DROP
 540     int                         m_dragCount;
 541     wxPoint                     m_dragStart;
 542
 543     bool                        m_dragEnabled;
 544     wxDataFormat                m_dragFormat;
 545
 546     bool                        m_dropEnabled;
 547     wxDataFormat                m_dropFormat;
 548     bool                        m_dropHint;
 549     unsigned int                m_dropHintLine;
 550 #endif // wxUSE_DRAG_AND_DROP
 551
 552     // for double click logic
 553     unsigned int m_lineLastClicked,
 554         m_lineBeforeLastClicked,
 555         m_lineSelectSingleOnUp;
 556
 557     // the pen used to draw horiz/vertical rules
 558     wxPen m_penRule;
 559
 560     // the pen used to draw the expander and the lines
 561     wxPen m_penExpander;
 562
 563     // This is the tree structure of the model
 564     wxDataViewTreeNode * m_root;
 565     int m_count;
 566
 567     // This is the tree node under the cursor
 568     wxDataViewTreeNode * m_underMouse;
 569
 570 private:
 571     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 572     DECLARE_EVENT_TABLE()
 573 };
 574
 575 // ---------------------------------------------------------
 576 // wxGenericDataViewModelNotifier
 577 // ---------------------------------------------------------
 578
 579 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 580 {
 581 public:
 582     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 583         { m_mainWindow = mainWindow; }
 584
 585     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 586         { return m_mainWindow->ItemAdded( parent , item ); }
 587     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 588         { return m_mainWindow->ItemDeleted( parent, item ); }
 589     virtual bool ItemChanged( const wxDataViewItem & item )
 590         { return m_mainWindow->ItemChanged(item);  }
 591     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 592         { return m_mainWindow->ValueChanged( item, col ); }
 593     virtual bool Cleared()
 594         { return m_mainWindow->Cleared(); }
 595     virtual void Resort()
 596         { m_mainWindow->Resort(); }
 597
 598     wxDataViewMainWindow    *m_mainWindow;
 599 };
 600
 601 // ---------------------------------------------------------
 602 // wxDataViewRenderer
 603 // ---------------------------------------------------------
 604
 605 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 606
 607 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 608                                         wxDataViewCellMode mode,
 609                                         int align) :
 610     wxDataViewRendererBase( varianttype, mode, align )
 611 {
 612     m_dc = NULL;
 613     m_align = align;
 614     m_mode = mode;
 615     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 616 }
 617
 618 wxDataViewRenderer::~wxDataViewRenderer()
 619 {
 620     if (m_dc)
 621         delete m_dc;
 622 }
 623
 624 bool
 625 wxDataViewRenderer::RenderWithAttr(wxDC& dc,
 626                                    const wxRect& cell_rect,
 627                                    int align,
 628                                    const wxDataViewItemAttr *WXUNUSED(attr),
 629                                    int state)
 630 {
 631     // adjust the rectangle ourselves to account for the alignment
 632
 633     wxRect item_rect = cell_rect;
 634     if ( align )
 635     {
 636         const wxSize size = GetSize();
 637
 638         // take alignment into account only if there is enough space, otherwise
 639         // show as much contents as possible
 640         //
 641         // notice that many existing renderers (e.g. wxDataViewSpinRenderer)
 642         // return hard-coded size which can be more than they need and if we
 643         // trusted their GetSize() we'd draw the text out of cell bounds
 644         // entirely
 645
 646         if ( size.x < cell_rect.width )
 647         {
 648             if (align & wxALIGN_CENTER_HORIZONTAL)
 649                 item_rect.x += (cell_rect.width - size.x)/2;
 650             else if (align & wxALIGN_RIGHT)
 651                 item_rect.x += cell_rect.width - size.x;
 652             // else: wxALIGN_LEFT is the default
 653
 654             item_rect.width = size.x;
 655         }
 656
 657         if ( size.y < cell_rect.height )
 658         {
 659             if (align & wxALIGN_CENTER_VERTICAL)
 660                 item_rect.y += (cell_rect.height - size.y)/2;
 661             else if (align & wxALIGN_BOTTOM)
 662                 item_rect.y += cell_rect.height - size.y;
 663             // else: wxALIGN_TOP is the default
 664
 665             item_rect.height = size.y;
 666         }
 667     }
 668
 669     return Render(item_rect, &dc, state);
 670 }
 671
 672 wxDC *wxDataViewRenderer::GetDC()
 673 {
 674     if (m_dc == NULL)
 675     {
 676         if (GetOwner() == NULL)
 677             return NULL;
 678         if (GetOwner()->GetOwner() == NULL)
 679             return NULL;
 680         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 681     }
 682
 683     return m_dc;
 684 }
 685
 686 void wxDataViewRenderer::SetAlignment( int align )
 687 {
 688     m_align=align;
 689 }
 690
 691 int wxDataViewRenderer::GetAlignment() const
 692 {
 693     return m_align;
 694 }
 695
 696 int wxDataViewRenderer::CalculateAlignment() const
 697 {
 698     if (m_align == wxDVR_DEFAULT_ALIGNMENT)
 699     {
 700         if (GetOwner() == NULL)
 701         return wxALIGN_LEFT | wxALIGN_CENTRE_VERTICAL;
 702
 703         return GetOwner()->GetAlignment() | wxALIGN_CENTRE_VERTICAL;
 704     }
 705
 706     return m_align;
 707 }
 708
 709 // ---------------------------------------------------------
 710 // wxDataViewCustomRenderer
 711 // ---------------------------------------------------------
 712
 713 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 714
 715 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 716                         wxDataViewCellMode mode, int align ) :
 717     wxDataViewRenderer( varianttype, mode, align )
 718 {
 719 }
 720
 721 void
 722 wxDataViewCustomRenderer::RenderText(wxDC& dc,
 723                                      const wxRect& rect,
 724                                      int align,
 725                                      const wxString& text,
 726                                      const wxDataViewItemAttr *attr,
 727                                      int state,
 728                                      int xoffset)
 729 {
 730     wxColour col;
 731     if ( attr && attr->HasColour() )
 732         col = attr->GetColour();
 733     else if ( state & wxDATAVIEW_CELL_SELECTED )
 734         col = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
 735     else // use default foreground
 736         col = GetOwner()->GetOwner()->GetForegroundColour();
 737
 738     wxDCTextColourChanger changeFg(dc, col);
 739
 740     wxDCFontChanger changeFont(dc);
 741     if ( attr && attr->HasFont() )
 742     {
 743         wxFont font(dc.GetFont());
 744         if ( attr->GetBold() )
 745             font.MakeBold();
 746         if ( attr->GetItalic() )
 747             font.MakeItalic();
 748
 749         changeFont.Set(font);
 750     }
 751
 752     wxRect rectText = rect;
 753     rectText.x += xoffset;
 754     rectText.width -= xoffset;
 755
 756     // check if we want to ellipsize the text if it doesn't fit
 757     wxString ellipsizedText;
 758     if ( GetEllipsizeMode() != wxELLIPSIZE_NONE )
 759     {
 760         ellipsizedText = wxControl::Ellipsize
 761                                     (
 762                                         text,
 763                                         dc,
 764                                         GetEllipsizeMode(),
 765                                         rect.width,
 766                                         wxELLIPSIZE_FLAGS_NONE
 767                                     );
 768     }
 769
 770     dc.DrawLabel(ellipsizedText.empty() ? text : ellipsizedText,
 771                  rectText, align);
 772 }
 773
 774 // ---------------------------------------------------------
 775 // wxDataViewTextRenderer
 776 // ---------------------------------------------------------
 777
 778 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewCustomRenderer)
 779
 780 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 781                                                 wxDataViewCellMode mode, int align ) :
 782     wxDataViewCustomRenderer( varianttype, mode, align )
 783 {
 784 }
 785
 786 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 787 {
 788     m_text = value.GetString();
 789
 790     return true;
 791 }
 792
 793 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 794 {
 795     return false;
 796 }
 797
 798 bool wxDataViewTextRenderer::HasEditorCtrl() const
 799 {
 800     return true;
 801 }
 802
 803 wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 804         wxRect labelRect, const wxVariant &value )
 805 {
 806     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 807                                        wxPoint(labelRect.x,labelRect.y),
 808                                        wxSize(labelRect.width,labelRect.height) );
 809
 810     // select the text in the control an place the cursor at the end
 811     ctrl->SetInsertionPointEnd();
 812     ctrl->SelectAll();
 813
 814     return ctrl;
 815 }
 816
 817 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )
 818 {
 819     wxTextCtrl *text = (wxTextCtrl*) editor;
 820     value = text->GetValue();
 821     return true;
 822 }
 823
 824 bool
 825 wxDataViewTextRenderer::RenderWithAttr(wxDC& dc,
 826                                        const wxRect& rect,
 827                                        int align,
 828                                        const wxDataViewItemAttr *attr,
 829                                        int state)
 830 {
 831     RenderText(dc, rect, align, m_text, attr, state);
 832     return true;
 833 }
 834
 835 wxSize wxDataViewTextRenderer::GetSize() const
 836 {
 837     const wxDataViewCtrl *view = GetView();
 838     if (!m_text.empty())
 839         return view->wxWindowBase::GetTextExtent( m_text );
 840     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 841 }
 842
 843 // ---------------------------------------------------------
 844 // wxDataViewBitmapRenderer
 845 // ---------------------------------------------------------
 846
 847 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewCustomRenderer)
 848
 849 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 850                                                     wxDataViewCellMode mode, int align ) :
 851     wxDataViewCustomRenderer( varianttype, mode, align )
 852 {
 853 }
 854
 855 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 856 {
 857     if (value.GetType() == wxT("wxBitmap"))
 858         m_bitmap << value;
 859     if (value.GetType() == wxT("wxIcon"))
 860         m_icon << value;
 861
 862     return true;
 863 }
 864
 865 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 866 {
 867     return false;
 868 }
 869
 870 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 871 {
 872     if (m_bitmap.Ok())
 873         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 874     else if (m_icon.Ok())
 875         dc->DrawIcon( m_icon, cell.x, cell.y );
 876
 877     return true;
 878 }
 879
 880 wxSize wxDataViewBitmapRenderer::GetSize() const
 881 {
 882     if (m_bitmap.Ok())
 883         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 884     else if (m_icon.Ok())
 885         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 886
 887     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 888 }
 889
 890 // ---------------------------------------------------------
 891 // wxDataViewToggleRenderer
 892 // ---------------------------------------------------------
 893
 894 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewCustomRenderer)
 895
 896 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 897                         wxDataViewCellMode mode, int align ) :
 898     wxDataViewCustomRenderer( varianttype, mode, align )
 899 {
 900     m_toggle = false;
 901 }
 902
 903 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 904 {
 905     m_toggle = value.GetBool();
 906
 907     return true;
 908 }
 909
 910 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 911 {
 912     return false;
 913 }
 914
 915 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 916 {
 917     int flags = 0;
 918     if (m_toggle)
 919         flags |= wxCONTROL_CHECKED;
 920     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE)
 921         flags |= wxCONTROL_DISABLED;
 922
 923     wxRendererNative::Get().DrawCheckBox(
 924             GetOwner()->GetOwner(),
 925             *dc,
 926             cell,
 927             flags );
 928
 929     return true;
 930 }
 931
 932 bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),
 933                                         wxDataViewModel *model,
 934                                         const wxDataViewItem & item, unsigned int col)
 935 {
 936     bool value = !m_toggle;
 937     wxVariant variant = value;
 938     model->SetValue( variant, item, col);
 939     model->ValueChanged( item, col );
 940     return true;
 941 }
 942
 943 wxSize wxDataViewToggleRenderer::GetSize() const
 944 {
 945     // the window parameter is not used by GetCheckBoxSize() so it's
 946     // safe to pass NULL
 947     return wxRendererNative::Get().GetCheckBoxSize(NULL);
 948 }
 949
 950 // ---------------------------------------------------------
 951 // wxDataViewProgressRenderer
 952 // ---------------------------------------------------------
 953
 954 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewCustomRenderer)
 955
 956 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 957     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 958     wxDataViewCustomRenderer( varianttype, mode, align )
 959 {
 960     m_label = label;
 961     m_value = 0;
 962 }
 963
 964 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 965 {
 966     m_value = (long) value;
 967
 968     if (m_value < 0) m_value = 0;
 969     if (m_value > 100) m_value = 100;
 970
 971     return true;
 972 }
 973
 974 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 975 {
 976     value = (long) m_value;
 977     return true;
 978 }
 979
 980 bool wxDataViewProgressRenderer::RenderWithAttr(wxDC& dc,
 981                                                 const wxRect& rect,
 982                                                 int WXUNUSED(align),
 983                                                 const wxDataViewItemAttr *attr,
 984                                                 int WXUNUSED(state))
 985 {
 986     // deflat the rect to leave a small border between bars in adjacent rows
 987     wxRect bar = rect.Deflate(0, 1);
 988
 989     dc.SetBrush( *wxTRANSPARENT_BRUSH );
 990     dc.SetPen( *wxBLACK_PEN );
 991     dc.DrawRectangle( bar );
 992
 993     bar.width = (int)(bar.width * m_value / 100.);
 994     dc.SetPen( *wxTRANSPARENT_PEN );
 995     dc.SetBrush( attr && attr->HasColour() ? wxBrush(attr->GetColour())
 996                                            : *wxBLUE_BRUSH );
 997     dc.DrawRectangle( bar );
 998
 999     return true;
1000 }
1001
1002 wxSize wxDataViewProgressRenderer::GetSize() const
1003 {
1004     return wxSize(40,12);
1005 }
1006
1007 // ---------------------------------------------------------
1008 // wxDataViewDateRenderer
1009 // ---------------------------------------------------------
1010
1011 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
1012
1013 #if wxUSE_DATE_RENDERER_POPUP
1014
1015 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
1016 {
1017 public:
1018     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
1019         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
1020         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
1021         m_item( item )
1022     {
1023         m_model = model;
1024         m_col = col;
1025         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
1026         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
1027         sizer->Add( m_cal, 1, wxGROW );
1028         SetSizer( sizer );
1029         sizer->Fit( this );
1030     }
1031
1032     void OnCalendar( wxCalendarEvent &event );
1033
1034     wxCalendarCtrl      *m_cal;
1035     wxDataViewModel *m_model;
1036     unsigned int               m_col;
1037     const wxDataViewItem &   m_item;
1038
1039 protected:
1040     virtual void OnDismiss()
1041     {
1042     }
1043
1044 private:
1045     DECLARE_EVENT_TABLE()
1046 };
1047
1048 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
1049     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
1050 END_EVENT_TABLE()
1051
1052 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
1053 {
1054     wxDateTime date = event.GetDate();
1055     wxVariant value = date;
1056     m_model->SetValue( value, m_item, m_col );
1057     m_model->ValueChanged( m_item, m_col );
1058     DismissAndNotify();
1059 }
1060
1061 #endif // wxUSE_DATE_RENDERER_POPUP
1062
1063 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewCustomRenderer)
1064
1065 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
1066                         wxDataViewCellMode mode, int align ) :
1067     wxDataViewCustomRenderer( varianttype, mode, align )
1068 {
1069 }
1070
1071 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
1072 {
1073     m_date = value.GetDateTime();
1074
1075     return true;
1076 }
1077
1078 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
1079 {
1080     value = m_date;
1081     return true;
1082 }
1083
1084 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
1085 {
1086     wxString tmp = m_date.FormatDate();
1087     RenderText( tmp, 0, cell, dc, state );
1088     return true;
1089 }
1090
1091 wxSize wxDataViewDateRenderer::GetSize() const
1092 {
1093     const wxDataViewCtrl* view = GetView();
1094     wxString tmp = m_date.FormatDate();
1095     wxCoord x,y,d;
1096     view->GetTextExtent( tmp, &x, &y, &d );
1097     return wxSize(x,y+d);
1098 }
1099
1100 bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,
1101                                     const wxDataViewItem & item, unsigned int col )
1102 {
1103     wxVariant variant;
1104     model->GetValue( variant, item, col );
1105     wxDateTime value = variant.GetDateTime();
1106
1107 #if wxUSE_DATE_RENDERER_POPUP
1108     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
1109         GetOwner()->GetOwner()->GetParent(), &value, model, item, col);
1110     wxPoint pos = wxGetMousePosition();
1111     popup->Move( pos );
1112     popup->Layout();
1113     popup->Popup( popup->m_cal );
1114 #else // !wxUSE_DATE_RENDERER_POPUP
1115     wxMessageBox(value.Format());
1116 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
1117     return true;
1118 }
1119
1120 // ---------------------------------------------------------
1121 // wxDataViewIconTextRenderer
1122 // ---------------------------------------------------------
1123
1124 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewCustomRenderer)
1125
1126 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1127 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1128     wxDataViewCustomRenderer( varianttype, mode, align )
1129 {
1130     SetMode(mode);
1131     SetAlignment(align);
1132 }
1133
1134 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1135 {
1136     m_value << value;
1137     return true;
1138 }
1139
1140 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1141 {
1142     return false;
1143 }
1144
1145 bool
1146 wxDataViewIconTextRenderer::RenderWithAttr(wxDC& dc,
1147                                            const wxRect& rect,
1148                                            int align,
1149                                            const wxDataViewItemAttr *attr,
1150                                            int state)
1151 {
1152     int xoffset = 0;
1153
1154     const wxIcon& icon = m_value.GetIcon();
1155     if ( icon.IsOk() )
1156     {
1157         dc.DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1158         xoffset = icon.GetWidth()+4;
1159     }
1160
1161     RenderText(dc, rect, align, m_value.GetText(), attr, state, xoffset);
1162
1163     return true;
1164 }
1165
1166 wxSize wxDataViewIconTextRenderer::GetSize() const
1167 {
1168     const wxDataViewCtrl *view = GetView();
1169     if (!m_value.GetText().empty())
1170     {
1171         int x,y;
1172         view->GetTextExtent( m_value.GetText(), &x, &y );
1173
1174         if (m_value.GetIcon().IsOk())
1175             x += m_value.GetIcon().GetWidth() + 4;
1176         return wxSize( x, y );
1177     }
1178     return wxSize(80,20);
1179 }
1180
1181 wxControl* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1182 {
1183     wxDataViewIconText iconText;
1184     iconText << value;
1185
1186     wxString text = iconText.GetText();
1187
1188     // adjust the label rect to take the width of the icon into account
1189     if (iconText.GetIcon().IsOk())
1190     {
1191         int w = iconText.GetIcon().GetWidth() + 4;
1192         labelRect.x += w;
1193         labelRect.width -= w;
1194     }
1195
1196     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1197                                        wxPoint(labelRect.x,labelRect.y),
1198                                        wxSize(labelRect.width,labelRect.height) );
1199
1200     // select the text in the control an place the cursor at the end
1201     ctrl->SetInsertionPointEnd();
1202     ctrl->SelectAll();
1203
1204     return ctrl;
1205 }
1206
1207 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant& value )
1208 {
1209     wxTextCtrl *text = (wxTextCtrl*) editor;
1210
1211     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1212     value << iconText;
1213     return true;
1214 }
1215
1216 //-----------------------------------------------------------------------------
1217 // wxDataViewDropTarget
1218 //-----------------------------------------------------------------------------
1219
1220 #if wxUSE_DRAG_AND_DROP
1221
1222 class wxBitmapCanvas: public wxWindow
1223 {
1224 public:
1225     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1226     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1227     {
1228         m_bitmap = bitmap;
1229         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1230     }
1231
1232     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1233     {
1234         wxPaintDC dc(this);
1235         dc.DrawBitmap( m_bitmap, 0, 0);
1236     }
1237
1238     wxBitmap m_bitmap;
1239 };
1240
1241 class wxDataViewDropSource: public wxDropSource
1242 {
1243 public:
1244     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1245         wxDropSource( win )
1246     {
1247         m_win = win;
1248         m_row = row;
1249         m_hint = NULL;
1250     }
1251
1252     ~wxDataViewDropSource()
1253     {
1254         delete m_hint;
1255     }
1256
1257     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1258     {
1259         wxPoint pos = wxGetMousePosition();
1260
1261         if (!m_hint)
1262         {
1263             int liney = m_win->GetLineStart( m_row );
1264             int linex = 0;
1265             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1266             m_win->ClientToScreen( &linex, &liney );
1267             m_dist_x = pos.x - linex;
1268             m_dist_y = pos.y - liney;
1269
1270             int indent = 0;
1271             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1272             m_dist_x -= indent;
1273             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1274                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1275                                         ib.GetSize(),
1276                                         wxFRAME_TOOL_WINDOW |
1277                                         wxFRAME_FLOAT_ON_PARENT |
1278                                         wxFRAME_NO_TASKBAR |
1279                                         wxNO_BORDER );
1280             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1281             m_hint->Show();
1282         }
1283         else
1284         {
1285             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1286             m_hint->SetTransparent( 128 );
1287         }
1288
1289         return false;
1290     }
1291
1292     wxDataViewMainWindow   *m_win;
1293     unsigned int            m_row;
1294     wxFrame                *m_hint;
1295     int m_dist_x,m_dist_y;
1296 };
1297
1298
1299 class wxDataViewDropTarget: public wxDropTarget
1300 {
1301 public:
1302     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1303         wxDropTarget( obj )
1304     {
1305         m_win = win;
1306     }
1307
1308     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1309     {
1310         wxDataFormat format = GetMatchingPair();
1311         if (format == wxDF_INVALID)
1312             return wxDragNone;
1313         return m_win->OnDragOver( format, x, y, def);
1314     }
1315
1316     virtual bool OnDrop( wxCoord x, wxCoord y )
1317     {
1318         wxDataFormat format = GetMatchingPair();
1319         if (format == wxDF_INVALID)
1320             return false;
1321         return m_win->OnDrop( format, x, y );
1322     }
1323
1324     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1325     {
1326         wxDataFormat format = GetMatchingPair();
1327         if (format == wxDF_INVALID)
1328             return wxDragNone;
1329         if (!GetData())
1330             return wxDragNone;
1331         return m_win->OnData( format, x, y, def );
1332     }
1333
1334     virtual void OnLeave()
1335         { m_win->OnLeave(); }
1336
1337     wxDataViewMainWindow   *m_win;
1338 };
1339
1340 #endif // wxUSE_DRAG_AND_DROP
1341
1342 //-----------------------------------------------------------------------------
1343 // wxDataViewRenameTimer
1344 //-----------------------------------------------------------------------------
1345
1346 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1347 {
1348     m_owner = owner;
1349 }
1350
1351 void wxDataViewRenameTimer::Notify()
1352 {
1353     m_owner->OnRenameTimer();
1354 }
1355
1356 //-----------------------------------------------------------------------------
1357 // wxDataViewMainWindow
1358 //-----------------------------------------------------------------------------
1359
1360 // The tree building helper, declared firstly
1361 static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item,
1362                              wxDataViewTreeNode * node);
1363
1364 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1365 {
1366     if (row1 > row2) return 1;
1367     if (row1 == row2) return 0;
1368     return -1;
1369 }
1370
1371 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1372
1373 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1374     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1375     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1376     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1377     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1378     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1379 END_EVENT_TABLE()
1380
1381 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1382     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1383     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1384     m_selection( wxDataViewSelectionCmp )
1385
1386 {
1387     SetOwner( parent );
1388
1389     m_lastOnSame = false;
1390     m_renameTimer = new wxDataViewRenameTimer( this );
1391
1392     // TODO: user better initial values/nothing selected
1393     m_currentCol = NULL;
1394     m_currentRow = 0;
1395
1396     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1397
1398 #if wxUSE_DRAG_AND_DROP
1399     m_dragCount = 0;
1400     m_dragStart = wxPoint(0,0);
1401
1402     m_dragEnabled = false;
1403     m_dropEnabled = false;
1404     m_dropHint = false;
1405     m_dropHintLine = (unsigned int) -1;
1406 #endif // wxUSE_DRAG_AND_DROP
1407
1408     m_lineLastClicked = (unsigned int) -1;
1409     m_lineBeforeLastClicked = (unsigned int) -1;
1410     m_lineSelectSingleOnUp = (unsigned int) -1;
1411
1412     m_hasFocus = false;
1413
1414     SetBackgroundColour( *wxWHITE );
1415
1416     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1417
1418     m_penRule = wxPen(GetRuleColour());
1419
1420     // compose a pen whichcan draw black lines
1421     // TODO: maybe there is something system colour to use
1422     m_penExpander = wxPen(wxColour(0,0,0));
1423
1424     m_root = new wxDataViewTreeNode( NULL );
1425     m_root->SetHasChildren(true);
1426
1427     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1428     m_count = -1;
1429     m_underMouse = NULL;
1430     UpdateDisplay();
1431 }
1432
1433 wxDataViewMainWindow::~wxDataViewMainWindow()
1434 {
1435     DestroyTree();
1436     delete m_renameTimer;
1437 }
1438
1439
1440 #if wxUSE_DRAG_AND_DROP
1441 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1442 {
1443     m_dragFormat = format;
1444     m_dragEnabled = format != wxDF_INVALID;
1445
1446     return true;
1447 }
1448
1449 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1450 {
1451     m_dropFormat = format;
1452     m_dropEnabled = format != wxDF_INVALID;
1453
1454     if (m_dropEnabled)
1455         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1456
1457     return true;
1458 }
1459
1460 void wxDataViewMainWindow::RemoveDropHint()
1461 {
1462     if (m_dropHint)
1463     {
1464             m_dropHint = false;
1465             RefreshRow( m_dropHintLine );
1466             m_dropHintLine = (unsigned int) -1;
1467     }
1468 }
1469
1470 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1471                                                wxCoord y, wxDragResult def )
1472 {
1473     int xx = x;
1474     int yy = y;
1475     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1476     unsigned int row = GetLineAt( yy );
1477
1478     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1479     {
1480         RemoveDropHint();
1481         return wxDragNone;
1482     }
1483
1484     wxDataViewItem item = GetItemByRow( row );
1485
1486     wxDataViewModel *model = GetOwner()->GetModel();
1487
1488     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1489     event.SetEventObject( m_owner );
1490     event.SetItem( item );
1491     event.SetModel( model );
1492     event.SetDataFormat( format );
1493     if (!m_owner->HandleWindowEvent( event ))
1494     {
1495         RemoveDropHint();
1496         return wxDragNone;
1497     }
1498
1499     if (!event.IsAllowed())
1500     {
1501         RemoveDropHint();
1502         return wxDragNone;
1503     }
1504
1505
1506     if (m_dropHint && (row != m_dropHintLine))
1507         RefreshRow( m_dropHintLine );
1508     m_dropHint = true;
1509     m_dropHintLine = row;
1510     RefreshRow( row );
1511
1512     return def;
1513 }
1514
1515 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1516 {
1517     RemoveDropHint();
1518
1519     int xx = x;
1520     int yy = y;
1521     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1522     unsigned int row = GetLineAt( yy );
1523
1524     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1525         return false;
1526
1527     wxDataViewItem item = GetItemByRow( row );
1528
1529     wxDataViewModel *model = GetOwner()->GetModel();
1530
1531     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1532     event.SetEventObject( m_owner );
1533     event.SetItem( item );
1534     event.SetModel( model );
1535     event.SetDataFormat( format );
1536     if (!m_owner->HandleWindowEvent( event ))
1537         return false;
1538
1539     if (!event.IsAllowed())
1540         return false;
1541
1542     return true;
1543 }
1544
1545 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1546                                            wxDragResult def )
1547 {
1548     int xx = x;
1549     int yy = y;
1550     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1551     unsigned int row = GetLineAt( yy );
1552
1553     if ((row >= GetRowCount()) || (yy > GetEndOfLastCol()))
1554         return wxDragNone;
1555
1556     wxDataViewItem item = GetItemByRow( row );
1557
1558     wxDataViewModel *model = GetOwner()->GetModel();
1559
1560     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1561
1562     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1563     event.SetEventObject( m_owner );
1564     event.SetItem( item );
1565     event.SetModel( model );
1566     event.SetDataFormat( format );
1567     event.SetDataSize( obj->GetSize() );
1568     event.SetDataBuffer( obj->GetData() );
1569     if (!m_owner->HandleWindowEvent( event ))
1570         return wxDragNone;
1571
1572     if (!event.IsAllowed())
1573         return wxDragNone;
1574
1575     return def;
1576 }
1577
1578 void wxDataViewMainWindow::OnLeave()
1579 {
1580     RemoveDropHint();
1581 }
1582
1583 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1584 {
1585     int height = GetLineHeight( row );
1586     int width = 0;
1587     unsigned int cols = GetOwner()->GetColumnCount();
1588     unsigned int col;
1589     for (col = 0; col < cols; col++)
1590     {
1591         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1592         if (column->IsHidden())
1593             continue;      // skip it!
1594         width += column->GetWidth();
1595     }
1596
1597     indent = 0;
1598     if (!IsVirtualList())
1599     {
1600         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1601         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1602         indent = indent + m_lineHeight;
1603             // try to use the m_lineHeight as the expander space
1604
1605         if(!node->HasChildren())
1606             delete node;
1607     }
1608     width -= indent;
1609
1610     wxBitmap bitmap( width, height );
1611     wxMemoryDC dc( bitmap );
1612     dc.SetFont( GetFont() );
1613     dc.SetPen( *wxBLACK_PEN );
1614     dc.SetBrush( *wxWHITE_BRUSH );
1615     dc.DrawRectangle( 0,0,width,height );
1616
1617     wxDataViewModel *model = m_owner->GetModel();
1618
1619     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1620     if (!expander)
1621     {
1622         // TODO-RTL: last column for RTL support
1623         expander = GetOwner()->GetColumnAt( 0 );
1624         GetOwner()->SetExpanderColumn(expander);
1625     }
1626
1627
1628     int x = 0;
1629     for (col = 0; col < cols; col++)
1630     {
1631         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1632         wxDataViewRenderer *cell = column->GetRenderer();
1633
1634         if (column->IsHidden())
1635             continue;       // skip it!
1636
1637         width = column->GetWidth();
1638
1639         if (column == expander)
1640             width -= indent;
1641
1642         wxVariant value;
1643         wxDataViewItem item = GetItemByRow( row );
1644         model->GetValue( value, item, column->GetModelColumn());
1645         cell->SetValue( value );
1646
1647         wxRect item_rect(x, 0, width, height);
1648         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1649
1650         // dc.SetClippingRegion( item_rect );
1651         wxDataViewItemAttr attr;
1652         const bool
1653             hasAttr = model->GetAttr(item, column->GetModelColumn(), attr);
1654         cell->RenderWithAttr(dc, item_rect, cell->CalculateAlignment(),
1655                                 hasAttr ? &attr : NULL, 0);
1656         // dc.DestroyClippingRegion();
1657
1658         x += width;
1659     }
1660
1661     return bitmap;
1662 }
1663
1664 #endif // wxUSE_DRAG_AND_DROP
1665
1666
1667 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1668 {
1669     wxDataViewModel *model = GetOwner()->GetModel();
1670     wxAutoBufferedPaintDC dc( this );
1671
1672 #ifdef __WXMSW__
1673     dc.SetBrush(GetOwner()->GetBackgroundColour());
1674     dc.SetPen( *wxTRANSPARENT_PEN );
1675     dc.DrawRectangle(GetClientSize());
1676 #endif
1677
1678     // prepare the DC
1679     GetOwner()->PrepareDC( dc );
1680     dc.SetFont( GetFont() );
1681
1682     wxRect update = GetUpdateRegion().GetBox();
1683     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1684
1685     // compute which items needs to be redrawn
1686     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1687     unsigned int item_count =
1688         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1689             (int)(GetRowCount( ) - item_start));
1690     unsigned int item_last = item_start + item_count;
1691     // Get the parent of DataViewCtrl
1692     wxWindow *parent = GetParent()->GetParent();
1693     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1694     cache_event.SetEventObject(GetParent());
1695     cache_event.SetCache(item_start, item_last - 1);
1696     parent->ProcessWindowEvent(cache_event);
1697
1698     // compute which columns needs to be redrawn
1699     unsigned int cols = GetOwner()->GetColumnCount();
1700     unsigned int col_start = 0;
1701     unsigned int x_start;
1702     for (x_start = 0; col_start < cols; col_start++)
1703     {
1704         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1705         if (col->IsHidden())
1706             continue;      // skip it!
1707
1708         unsigned int w = col->GetWidth();
1709         if (x_start+w >= (unsigned int)update.x)
1710             break;
1711
1712         x_start += w;
1713     }
1714
1715     unsigned int col_last = col_start;
1716     unsigned int x_last = x_start;
1717     for (; col_last < cols; col_last++)
1718     {
1719         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1720         if (col->IsHidden())
1721             continue;      // skip it!
1722
1723         if (x_last > (unsigned int)update.GetRight())
1724             break;
1725
1726         x_last += col->GetWidth();
1727     }
1728
1729     // Draw horizontal rules if required
1730     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1731     {
1732         dc.SetPen(m_penRule);
1733         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1734
1735         for (unsigned int i = item_start; i <= item_last; i++)
1736         {
1737             int y = GetLineStart( i );
1738             dc.DrawLine(x_start, y, x_last, y);
1739         }
1740     }
1741
1742     // Draw vertical rules if required
1743     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1744     {
1745         dc.SetPen(m_penRule);
1746         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1747
1748         int x = x_start;
1749         for (unsigned int i = col_start; i < col_last; i++)
1750         {
1751             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1752             if (col->IsHidden())
1753                 continue;       // skip it
1754
1755             dc.DrawLine(x, GetLineStart( item_start ),
1756                         x, GetLineStart( item_last ) );
1757
1758             x += col->GetWidth();
1759         }
1760
1761         // Draw last vertical rule
1762         dc.DrawLine(x, GetLineStart( item_start ),
1763                     x, GetLineStart( item_last ) );
1764     }
1765
1766     // redraw the background for the items which are selected/current
1767     for (unsigned int item = item_start; item < item_last; item++)
1768     {
1769         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1770         if (selected || item == m_currentRow)
1771         {
1772             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1773             if (item == m_currentRow)
1774                 flags |= wxCONTROL_CURRENT;
1775             if (m_hasFocus)
1776                 flags |= wxCONTROL_FOCUSED;
1777
1778             wxRect rect( x_start, GetLineStart( item ), x_last, GetLineHeight( item ) );
1779             wxRendererNative::Get().DrawItemSelectionRect
1780                                 (
1781                                     this,
1782                                     dc,
1783                                     rect,
1784                                     flags
1785                                 );
1786         }
1787     }
1788
1789 #if wxUSE_DRAG_AND_DROP
1790     if (m_dropHint)
1791     {
1792         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1793                     x_last, GetLineHeight( m_dropHintLine ) );
1794         dc.SetPen( *wxBLACK_PEN );
1795         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1796         dc.DrawRectangle( rect );
1797     }
1798 #endif // wxUSE_DRAG_AND_DROP
1799
1800     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1801     if (!expander)
1802     {
1803         // TODO-RTL: last column for RTL support
1804         expander = GetOwner()->GetColumnAt( 0 );
1805         GetOwner()->SetExpanderColumn(expander);
1806     }
1807
1808     // redraw all cells for all rows which must be repainted and all columns
1809     wxRect cell_rect;
1810     cell_rect.x = x_start;
1811     for (unsigned int i = col_start; i < col_last; i++)
1812     {
1813         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1814         wxDataViewRenderer *cell = col->GetRenderer();
1815         cell_rect.width = col->GetWidth();
1816
1817         if (col->IsHidden())
1818             continue;       // skip it!
1819
1820         for (unsigned int item = item_start; item < item_last; item++)
1821         {
1822             // get the cell value and set it into the renderer
1823             wxVariant value;
1824             wxDataViewTreeNode *node = NULL;
1825             wxDataViewItem dataitem;
1826
1827             if (!IsVirtualList())
1828             {
1829                 node = GetTreeNodeByRow(item);
1830                 if( node == NULL )
1831                     continue;
1832
1833                 dataitem = node->GetItem();
1834
1835                 if ((i > 0) && model->IsContainer(dataitem) &&
1836                     !model->HasContainerColumns(dataitem))
1837                     continue;
1838             }
1839             else
1840             {
1841                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1842             }
1843
1844             model->GetValue( value, dataitem, col->GetModelColumn());
1845             cell->SetValue( value );
1846
1847             // update cell_rect
1848             cell_rect.y = GetLineStart( item );
1849             cell_rect.height = GetLineHeight( item );
1850
1851             // Draw the expander here.
1852             int indent = 0;
1853             if ((!IsVirtualList()) && (col == expander))
1854             {
1855                 indent = node->GetIndentLevel();
1856
1857                 // Calculate the indent first
1858                 indent = cell_rect.x + GetOwner()->GetIndent() * indent;
1859
1860                 int expander_width = m_lineHeight - 2*EXPANDER_MARGIN;
1861
1862                 // change the cell_rect.x to the appropriate pos
1863                 int expander_x = indent + EXPANDER_MARGIN;
1864                 int expander_y = cell_rect.y + EXPANDER_MARGIN + (GetLineHeight(item) / 2)
1865                                  - (expander_width/2) - EXPANDER_OFFSET;
1866
1867                 indent = indent + m_lineHeight;
1868                     // try to use the m_lineHeight as the expander space
1869
1870                 dc.SetPen( m_penExpander );
1871                 dc.SetBrush( wxNullBrush );
1872                 if( node->HasChildren() )
1873                 {
1874                     wxRect rect( expander_x , expander_y, expander_width, expander_width);
1875                     int flag = 0;
1876                     if (m_underMouse == node)
1877                     {
1878                         flag |= wxCONTROL_CURRENT;
1879                     }
1880                     if( node->IsOpen() )
1881                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect,
1882                                                                     flag|wxCONTROL_EXPANDED );
1883                     else
1884                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1885                 }
1886
1887                 // force the expander column to left-center align
1888                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1889             }
1890             if (node && !node->HasChildren())
1891             {
1892                 // Yes, if the node does not have any child, it must be a leaf which
1893                 // mean that it is a temporarily created by GetTreeNodeByRow
1894                 wxDELETE(node);
1895             }
1896
1897             wxRect item_rect = cell_rect;
1898             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1899
1900             // account for the tree indent (harmless if we're not indented)
1901             item_rect.x += indent;
1902             item_rect.width -= indent;
1903
1904             int state = 0;
1905             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1906                 state |= wxDATAVIEW_CELL_SELECTED;
1907
1908             // TODO: it would be much more efficient to create a clipping
1909             //       region for the entire column being rendered (in the OnPaint
1910             //       of wxDataViewMainWindow) instead of a single clip region for
1911             //       each cell. However it would mean that each renderer should
1912             //       respect the given wxRect's top & bottom coords, eventually
1913             //       violating only the left & right coords - however the user can
1914             //       make its own renderer and thus we cannot be sure of that.
1915             wxDCClipper clip(dc, item_rect);
1916
1917             wxDataViewItemAttr attr;
1918             const bool
1919                 hasAttr = model->GetAttr(dataitem, col->GetModelColumn(), attr);
1920             cell->RenderWithAttr(dc, item_rect, cell->CalculateAlignment(),
1921                                     hasAttr ? &attr : NULL, state);
1922         }
1923
1924         cell_rect.x += cell_rect.width;
1925     }
1926 }
1927
1928 void wxDataViewMainWindow::OnRenameTimer()
1929 {
1930     // We have to call this here because changes may just have
1931     // been made and no screen update taken place.
1932     if ( m_dirty )
1933     {
1934         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1935         //       (needs to be tested!)
1936         wxSafeYield();
1937     }
1938
1939     wxDataViewItem item = GetItemByRow( m_currentRow );
1940
1941     wxRect labelRect = GetItemRect(item, m_currentCol);
1942
1943     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1944 }
1945
1946 //-----------------------------------------------------------------------------
1947 // Helper class for do operation on the tree node
1948 //-----------------------------------------------------------------------------
1949 class DoJob
1950 {
1951 public:
1952     DoJob() { }
1953     virtual ~DoJob() { }
1954
1955     // The return value control how the tree-walker tranverse the tree
1956     // 0: Job done, stop tranverse and return
1957     // 1: Ignore the current node's subtree and continue
1958     // 2: Job not done, continue
1959     enum  { OK = 0 , IGR = 1, CONT = 2 };
1960     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1961     virtual int operator() ( void * n ) = 0;
1962 };
1963
1964 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1965 {
1966     if( node==NULL )
1967         return false;
1968
1969     switch( func( node ) )
1970     {
1971         case DoJob::OK :
1972             return true;
1973         case DoJob::IGR:
1974             return false;
1975         case DoJob::CONT:
1976         default:
1977             ;
1978     }
1979
1980     wxDataViewTreeNodes nodes = node->GetNodes();
1981     wxDataViewTreeLeaves leaves = node->GetChildren();
1982
1983     int len_nodes = nodes.GetCount();
1984     int len = leaves.GetCount();
1985     int i = 0, nodes_i = 0;
1986
1987     for(; i < len; i ++ )
1988     {
1989         void * n = leaves[i];
1990         if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
1991         {
1992             wxDataViewTreeNode * nd = nodes[nodes_i];
1993             nodes_i++;
1994
1995             if( Walker( nd , func ) )
1996                 return true;
1997
1998         }
1999         else
2000             switch( func( n ) )
2001             {
2002                 case DoJob::OK :
2003                     return true;
2004                 case DoJob::IGR:
2005                     continue;
2006                 case DoJob::CONT:
2007                 default:
2008                 ;
2009             }
2010     }
2011     return false;
2012 }
2013
2014 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
2015 {
2016     if (IsVirtualList())
2017     {
2018         wxDataViewVirtualListModel *list_model =
2019             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
2020         m_count = list_model->GetCount();
2021         UpdateDisplay();
2022         return true;
2023     }
2024
2025     SortPrepare();
2026
2027     wxDataViewTreeNode * node;
2028     node = FindNode(parent);
2029
2030     if( node == NULL )
2031         return false;
2032
2033     node->SetHasChildren( true );
2034
2035     if( g_model->IsContainer( item ) )
2036     {
2037         wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
2038         newnode->SetItem(item);
2039         newnode->SetHasChildren( true );
2040         node->AddNode( newnode);
2041     }
2042     else
2043         node->AddLeaf( item.GetID() );
2044
2045     node->ChangeSubTreeCount(1);
2046
2047     m_count = -1;
2048     UpdateDisplay();
2049
2050     return true;
2051 }
2052
2053 static void DestroyTreeHelper( wxDataViewTreeNode * node);
2054
2055 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2056                                        const wxDataViewItem& item)
2057 {
2058     if (IsVirtualList())
2059     {
2060         wxDataViewVirtualListModel *list_model =
2061             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
2062         m_count = list_model->GetCount();
2063
2064         if( m_currentRow > GetRowCount() )
2065             m_currentRow = m_count - 1;
2066
2067         // TODO: why empty the entire selection?
2068         m_selection.Empty();
2069
2070         UpdateDisplay();
2071
2072         return true;
2073     }
2074
2075     wxDataViewTreeNode * node = FindNode(parent);
2076
2077     wxCHECK_MSG( node != NULL, false, "item not found" );
2078     wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND,
2079                  false, "item not found" );
2080
2081     int sub = -1;
2082     node->GetChildren().Remove( item.GetID() );
2083     // Manipolate selection
2084     if( m_selection.GetCount() > 1 )
2085     {
2086         m_selection.Empty();
2087     }
2088     bool isContainer = false;
2089     wxDataViewTreeNodes nds = node->GetNodes();
2090     for (size_t i = 0; i < nds.GetCount(); i ++)
2091     {
2092         if (nds[i]->GetItem() == item)
2093         {
2094             isContainer = true;
2095             break;
2096         }
2097     }
2098     if( isContainer )
2099     {
2100         wxDataViewTreeNode * n = NULL;
2101         wxDataViewTreeNodes nodes = node->GetNodes();
2102         int len = nodes.GetCount();
2103         for( int i = 0; i < len; i ++)
2104         {
2105             if( nodes[i]->GetItem() == item )
2106             {
2107                 n = nodes[i];
2108                 break;
2109             }
2110         }
2111
2112         wxCHECK_MSG( n != NULL, false, "item not found" );
2113
2114         node->GetNodes().Remove( n );
2115         sub -= n->GetSubTreeCount();
2116         ::DestroyTreeHelper(n);
2117     }
2118     // Make the row number invalid and get a new valid one when user call GetRowCount
2119     m_count = -1;
2120     node->ChangeSubTreeCount(sub);
2121
2122     // Change the current row to the last row if the current exceed the max row number
2123     if( m_currentRow > GetRowCount() )
2124         m_currentRow = m_count - 1;
2125
2126     UpdateDisplay();
2127
2128     return true;
2129 }
2130
2131 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2132 {
2133     SortPrepare();
2134     g_model->Resort();
2135
2136     // Send event
2137     wxWindow *parent = GetParent();
2138     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2139     le.SetEventObject(parent);
2140     le.SetModel(GetOwner()->GetModel());
2141     le.SetItem(item);
2142     parent->GetEventHandler()->ProcessEvent(le);
2143
2144     return true;
2145 }
2146
2147 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )
2148 {
2149     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2150 /*#define MAX_VIRTUAL_WIDTH       100000
2151
2152     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2153     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2154     Refresh( true, &rect );
2155
2156     return true;
2157 */
2158     SortPrepare();
2159     g_model->Resort();
2160
2161     // Send event
2162     wxWindow *parent = GetParent();
2163     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2164     le.SetEventObject(parent);
2165     le.SetModel(GetOwner()->GetModel());
2166     le.SetItem(item);
2167     le.SetColumn(col);
2168     le.SetDataViewColumn(GetOwner()->GetColumn(col));
2169     parent->GetEventHandler()->ProcessEvent(le);
2170
2171     return true;
2172 }
2173
2174 bool wxDataViewMainWindow::Cleared()
2175 {
2176     DestroyTree();
2177
2178     SortPrepare();
2179     BuildTree( GetOwner()->GetModel() );
2180
2181     UpdateDisplay();
2182
2183     return true;
2184 }
2185
2186 void wxDataViewMainWindow::UpdateDisplay()
2187 {
2188     m_dirty = true;
2189 }
2190
2191 void wxDataViewMainWindow::OnInternalIdle()
2192 {
2193     wxWindow::OnInternalIdle();
2194
2195     if (m_dirty)
2196     {
2197         RecalculateDisplay();
2198         m_dirty = false;
2199     }
2200 }
2201
2202 void wxDataViewMainWindow::RecalculateDisplay()
2203 {
2204     wxDataViewModel *model = GetOwner()->GetModel();
2205     if (!model)
2206     {
2207         Refresh();
2208         return;
2209     }
2210
2211     int width = GetEndOfLastCol();
2212     int height = GetLineStart( GetRowCount() );
2213
2214     SetVirtualSize( width, height );
2215     GetOwner()->SetScrollRate( 10, m_lineHeight );
2216
2217     Refresh();
2218 }
2219
2220 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2221 {
2222     wxWindow::ScrollWindow( dx, dy, rect );
2223
2224     if (GetOwner()->m_headerArea)
2225         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2226 }
2227
2228 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2229 {
2230     int x, y;
2231     m_owner->GetScrollPixelsPerUnit( &x, &y );
2232     int sy = GetLineStart( rows )/y;
2233     int sx = 0;
2234     if( column != -1 )
2235     {
2236         wxRect rect = GetClientRect();
2237         int colnum = 0;
2238         int x_start, w = 0;
2239         int xx, yy, xe;
2240         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2241         for (x_start = 0; colnum < column; colnum++)
2242         {
2243             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2244             if (col->IsHidden())
2245                 continue;      // skip it!
2246
2247             w = col->GetWidth();
2248             x_start += w;
2249         }
2250
2251         int x_end = x_start + w;
2252         xe = xx + rect.width;
2253         if( x_end > xe )
2254         {
2255             sx = ( xx + x_end - xe )/x;
2256         }
2257         if( x_start < xx )
2258         {
2259             sx = x_start/x;
2260         }
2261     }
2262     m_owner->Scroll( sx, sy );
2263 }
2264
2265 int wxDataViewMainWindow::GetCountPerPage() const
2266 {
2267     wxSize size = GetClientSize();
2268     return size.y / m_lineHeight;
2269 }
2270
2271 int wxDataViewMainWindow::GetEndOfLastCol() const
2272 {
2273     int width = 0;
2274     unsigned int i;
2275     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2276     {
2277         const wxDataViewColumn *c =
2278             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2279
2280         if (!c->IsHidden())
2281             width += c->GetWidth();
2282     }
2283     return width;
2284 }
2285
2286 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2287 {
2288     int x = 0;
2289     int y = 0;
2290     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2291
2292     return GetLineAt( y );
2293 }
2294
2295 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2296 {
2297     wxSize client_size = GetClientSize();
2298     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2299                                     &client_size.x, &client_size.y );
2300
2301     // we should deal with the pixel here
2302     unsigned int row = GetLineAt(client_size.y) - 1;
2303
2304     return wxMin( GetRowCount()-1, row );
2305 }
2306
2307 unsigned int wxDataViewMainWindow::GetRowCount()
2308 {
2309     if ( m_count == -1 )
2310     {
2311         m_count = RecalculateCount();
2312         UpdateDisplay();
2313     }
2314     return m_count;
2315 }
2316
2317 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2318 {
2319     m_currentRow = row;
2320
2321     // send event
2322 }
2323
2324 void wxDataViewMainWindow::SelectAllRows( bool on )
2325 {
2326     if (IsEmpty())
2327         return;
2328
2329     if (on)
2330     {
2331         m_selection.Clear();
2332         for (unsigned int i = 0; i < GetRowCount(); i++)
2333             m_selection.Add( i );
2334         Refresh();
2335     }
2336     else
2337     {
2338         unsigned int first_visible = GetFirstVisibleRow();
2339         unsigned int last_visible = GetLastVisibleRow();
2340         unsigned int i;
2341         for (i = 0; i < m_selection.GetCount(); i++)
2342         {
2343             unsigned int row = m_selection[i];
2344             if ((row >= first_visible) && (row <= last_visible))
2345                 RefreshRow( row );
2346         }
2347         m_selection.Clear();
2348     }
2349 }
2350
2351 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2352 {
2353     if (m_selection.Index( row ) == wxNOT_FOUND)
2354     {
2355         if (on)
2356         {
2357             m_selection.Add( row );
2358             RefreshRow( row );
2359         }
2360     }
2361     else
2362     {
2363         if (!on)
2364         {
2365             m_selection.Remove( row );
2366             RefreshRow( row );
2367         }
2368     }
2369 }
2370
2371 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2372 {
2373     if (from > to)
2374     {
2375         unsigned int tmp = from;
2376         from = to;
2377         to = tmp;
2378     }
2379
2380     unsigned int i;
2381     for (i = from; i <= to; i++)
2382     {
2383         if (m_selection.Index( i ) == wxNOT_FOUND)
2384         {
2385             if (on)
2386                 m_selection.Add( i );
2387         }
2388         else
2389         {
2390             if (!on)
2391                 m_selection.Remove( i );
2392         }
2393     }
2394     RefreshRows( from, to );
2395 }
2396
2397 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2398 {
2399     for (size_t i=0; i < aSelections.GetCount(); i++)
2400     {
2401         int n = aSelections[i];
2402
2403         m_selection.Add( n );
2404         RefreshRow( n );
2405     }
2406 }
2407
2408 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2409 {
2410     if (m_selection.Index( row ) == wxNOT_FOUND)
2411         m_selection.Add( row );
2412     else
2413         m_selection.Remove( row );
2414     RefreshRow( row );
2415 }
2416
2417 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2418 {
2419     return (m_selection.Index( row ) != wxNOT_FOUND);
2420 }
2421
2422 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2423 {
2424     wxWindow *parent = GetParent();
2425     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2426
2427     le.SetEventObject(parent);
2428     le.SetModel(GetOwner()->GetModel());
2429     le.SetItem( item );
2430
2431     parent->GetEventHandler()->ProcessEvent(le);
2432 }
2433
2434 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2435 {
2436     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2437     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2438
2439     wxSize client_size = GetClientSize();
2440     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2441     wxRect intersect_rect = client_rect.Intersect( rect );
2442     if (intersect_rect.width > 0)
2443         Refresh( true, &intersect_rect );
2444 }
2445
2446 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2447 {
2448     if (from > to)
2449     {
2450         unsigned int tmp = to;
2451         to = from;
2452         from = tmp;
2453     }
2454
2455     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2456     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2457
2458     wxSize client_size = GetClientSize();
2459     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2460     wxRect intersect_rect = client_rect.Intersect( rect );
2461     if (intersect_rect.width > 0)
2462         Refresh( true, &intersect_rect );
2463 }
2464
2465 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2466 {
2467     wxSize client_size = GetClientSize();
2468     int start = GetLineStart( firstRow );
2469     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2470     if (start > client_size.y) return;
2471
2472     wxRect rect( 0, start, client_size.x, client_size.y - start );
2473
2474     Refresh( true, &rect );
2475 }
2476
2477 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2478 {
2479     wxCHECK_RET( newCurrent < GetRowCount(),
2480                 wxT("invalid item index in OnArrowChar()") );
2481
2482     // if there is no selection, we cannot move it anywhere
2483     if (!HasCurrentRow())
2484         return;
2485
2486     unsigned int oldCurrent = m_currentRow;
2487
2488     // in single selection we just ignore Shift as we can't select several
2489     // items anyhow
2490     if ( event.ShiftDown() && !IsSingleSel() )
2491     {
2492         RefreshRow( oldCurrent );
2493
2494         ChangeCurrentRow( newCurrent );
2495
2496         // select all the items between the old and the new one
2497         if ( oldCurrent > newCurrent )
2498         {
2499             newCurrent = oldCurrent;
2500             oldCurrent = m_currentRow;
2501         }
2502
2503         SelectRows( oldCurrent, newCurrent, true );
2504         if (oldCurrent!=newCurrent)
2505             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2506     }
2507     else // !shift
2508     {
2509         RefreshRow( oldCurrent );
2510
2511         // all previously selected items are unselected unless ctrl is held
2512         if ( !event.ControlDown() )
2513             SelectAllRows(false);
2514
2515         ChangeCurrentRow( newCurrent );
2516
2517         if ( !event.ControlDown() )
2518         {
2519             SelectRow( m_currentRow, true );
2520             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2521         }
2522         else
2523             RefreshRow( m_currentRow );
2524     }
2525
2526     GetOwner()->EnsureVisible( m_currentRow, -1 );
2527 }
2528
2529 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2530 {
2531     wxRect rect;
2532     rect.x = 0;
2533     rect.y = GetLineStart( row );
2534     rect.width = GetEndOfLastCol();
2535     rect.height = GetLineHeight( row );
2536
2537     return rect;
2538 }
2539
2540 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2541 {
2542     const wxDataViewModel *model = GetOwner()->GetModel();
2543
2544     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2545     {
2546         // TODO make more efficient
2547
2548         int start = 0;
2549
2550         unsigned int r;
2551         for (r = 0; r < row; r++)
2552         {
2553             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2554             if (!node) return start;
2555
2556             wxDataViewItem item = node->GetItem();
2557
2558             if (node && !node->HasChildren())
2559             {
2560                 // Yes, if the node does not have any child, it must be a leaf which
2561                 // mean that it is a temporarily created by GetTreeNodeByRow
2562                 wxDELETE(node);
2563             }
2564
2565             unsigned int cols = GetOwner()->GetColumnCount();
2566             unsigned int col;
2567             int height = m_lineHeight;
2568             for (col = 0; col < cols; col++)
2569             {
2570                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2571                 if (column->IsHidden())
2572                     continue;      // skip it!
2573
2574                 if ((col != 0) &&
2575                     model->IsContainer(item) &&
2576                     !model->HasContainerColumns(item))
2577                     continue;      // skip it!
2578
2579                 wxVariant value;
2580                 model->GetValue( value, item, column->GetModelColumn() );
2581
2582                 wxDataViewRenderer *renderer =
2583                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2584                 renderer->SetValue( value );
2585                 height = wxMax( height, renderer->GetSize().y );
2586             }
2587
2588             start += height;
2589         }
2590
2591         return start;
2592     }
2593     else
2594     {
2595         return row * m_lineHeight;
2596     }
2597 }
2598
2599 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2600 {
2601     const wxDataViewModel *model = GetOwner()->GetModel();
2602
2603     // check for the easy case first
2604     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2605         return y / m_lineHeight;
2606
2607     // TODO make more efficient
2608     unsigned int row = 0;
2609     unsigned int yy = 0;
2610     for (;;)
2611     {
2612         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2613         if (!node)
2614         {
2615             // not really correct...
2616             return row + ((y-yy) / m_lineHeight);
2617         }
2618
2619         wxDataViewItem item = node->GetItem();
2620
2621         if (node && !node->HasChildren())
2622         {
2623             // Yes, if the node does not have any child, it must be a leaf which
2624             // mean that it is a temporarily created by GetTreeNodeByRow
2625             wxDELETE(node);
2626         }
2627
2628         unsigned int cols = GetOwner()->GetColumnCount();
2629         unsigned int col;
2630         int height = m_lineHeight;
2631         for (col = 0; col < cols; col++)
2632         {
2633             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2634             if (column->IsHidden())
2635                 continue;      // skip it!
2636
2637             if ((col != 0) &&
2638                 model->IsContainer(item) &&
2639                 !model->HasContainerColumns(item))
2640                 continue;      // skip it!
2641
2642             wxVariant value;
2643             model->GetValue( value, item, column->GetModelColumn() );
2644
2645             wxDataViewRenderer *renderer =
2646                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2647             renderer->SetValue( value );
2648             height = wxMax( height, renderer->GetSize().y );
2649         }
2650
2651         yy += height;
2652         if (y < yy)
2653             return row;
2654
2655         row++;
2656     }
2657 }
2658
2659 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2660 {
2661     const wxDataViewModel *model = GetOwner()->GetModel();
2662
2663     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2664     {
2665         wxASSERT( !IsVirtualList() );
2666
2667         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2668         // wxASSERT( node );
2669         if (!node) return m_lineHeight;
2670
2671         wxDataViewItem item = node->GetItem();
2672
2673         if (node && !node->HasChildren())
2674         {
2675                 // Yes, if the node does not have any child, it must be a leaf which
2676                 // mean that it is a temporarily created by GetTreeNodeByRow
2677             wxDELETE(node);
2678         }
2679
2680         int height = m_lineHeight;
2681
2682         unsigned int cols = GetOwner()->GetColumnCount();
2683         unsigned int col;
2684         for (col = 0; col < cols; col++)
2685         {
2686             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2687             if (column->IsHidden())
2688                 continue;      // skip it!
2689
2690             if ((col != 0) &&
2691                 model->IsContainer(item) &&
2692                 !model->HasContainerColumns(item))
2693                 continue;      // skip it!
2694
2695             wxVariant value;
2696             model->GetValue( value, item, column->GetModelColumn() );
2697
2698             wxDataViewRenderer *renderer =
2699                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2700             renderer->SetValue( value );
2701             height = wxMax( height, renderer->GetSize().y );
2702         }
2703
2704         return height;
2705     }
2706     else
2707     {
2708         return m_lineHeight;
2709     }
2710 }
2711
2712 class RowToItemJob: public DoJob
2713 {
2714 public:
2715     RowToItemJob( unsigned int row , int current )
2716         { this->row = row; this->current = current; }
2717     virtual ~RowToItemJob() {}
2718
2719     virtual int operator() ( wxDataViewTreeNode * node )
2720     {
2721         current ++;
2722         if( current == static_cast<int>(row))
2723         {
2724             ret = node->GetItem();
2725             return DoJob::OK;
2726         }
2727
2728         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2729         {
2730             current += node->GetSubTreeCount();
2731             return  DoJob::IGR;
2732         }
2733         else
2734         {
2735             // If the current has no child node, we can find the desired item of the row
2736             // number directly.
2737             // This if can speed up finding in some case, and will has a very good effect
2738             // when it comes to list view
2739             if( node->GetNodes().GetCount() == 0)
2740             {
2741                 int index = static_cast<int>(row) - current - 1;
2742                 ret = node->GetChildren().Item( index );
2743                 return DoJob::OK;
2744             }
2745             return DoJob::CONT;
2746         }
2747     }
2748
2749     virtual int operator() ( void * n )
2750     {
2751         current ++;
2752         if( current == static_cast<int>(row))
2753         {
2754             ret = wxDataViewItem( n );
2755             return DoJob::OK;
2756         }
2757         return DoJob::CONT;
2758     }
2759
2760     wxDataViewItem GetResult() const
2761         { return ret; }
2762
2763 private:
2764     unsigned int row;
2765     int current;
2766     wxDataViewItem ret;
2767 };
2768
2769 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2770 {
2771     if (IsVirtualList())
2772     {
2773         return wxDataViewItem( wxUIntToPtr(row+1) );
2774     }
2775     else
2776     {
2777         RowToItemJob job( row, -2 );
2778         Walker( m_root , job );
2779         return job.GetResult();
2780     }
2781 }
2782
2783 class RowToTreeNodeJob: public DoJob
2784 {
2785 public:
2786     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2787     {
2788         this->row = row;
2789         this->current = current;
2790         ret = NULL;
2791         parent = node;
2792     }
2793     virtual ~RowToTreeNodeJob(){ }
2794
2795     virtual int operator() ( wxDataViewTreeNode * node )
2796     {
2797         current ++;
2798         if( current == static_cast<int>(row))
2799         {
2800             ret = node;
2801             return DoJob::OK;
2802         }
2803
2804         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2805         {
2806             current += node->GetSubTreeCount();
2807             return  DoJob::IGR;
2808         }
2809         else
2810         {
2811             parent = node;
2812
2813             // If the current node has no children, we can find the desired item of the
2814             // row number directly.
2815             // This if can speed up finding in some case, and will have a very good
2816             // effect for list views.
2817             if( node->GetNodes().GetCount() == 0)
2818             {
2819                 int index = static_cast<int>(row) - current - 1;
2820                 void * n = node->GetChildren().Item( index );
2821                 ret = new wxDataViewTreeNode( parent );
2822                 ret->SetItem( wxDataViewItem( n ));
2823                 ret->SetHasChildren(false);
2824                 return DoJob::OK;
2825             }
2826             return DoJob::CONT;
2827         }
2828     }
2829
2830     virtual int operator() ( void * n )
2831     {
2832         current ++;
2833         if( current == static_cast<int>(row))
2834         {
2835             ret = new wxDataViewTreeNode( parent );
2836             ret->SetItem( wxDataViewItem( n ));
2837             ret->SetHasChildren(false);
2838             return DoJob::OK;
2839         }
2840
2841         return DoJob::CONT;
2842     }
2843
2844     wxDataViewTreeNode * GetResult() const
2845         { return ret; }
2846
2847 private:
2848     unsigned int row;
2849     int current;
2850     wxDataViewTreeNode * ret;
2851     wxDataViewTreeNode * parent;
2852 };
2853
2854 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2855 {
2856     wxASSERT( !IsVirtualList() );
2857
2858     RowToTreeNodeJob job( row , -2, m_root );
2859     Walker( m_root , job );
2860     return job.GetResult();
2861 }
2862
2863 wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type,
2864                                                          const wxDataViewItem & item )
2865 {
2866     wxWindow *parent = GetParent();
2867     wxDataViewEvent le(type, parent->GetId());
2868
2869     le.SetEventObject(parent);
2870     le.SetModel(GetOwner()->GetModel());
2871     le.SetItem( item );
2872
2873     parent->GetEventHandler()->ProcessEvent(le);
2874     return le;
2875 }
2876
2877 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2878 {
2879     if (IsVirtualList())
2880         return false;
2881
2882     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2883     if (!node)
2884         return false;
2885
2886     if (!node->HasChildren())
2887     {
2888         delete node;
2889         return false;
2890     }
2891
2892     return node->IsOpen();
2893 }
2894
2895 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2896 {
2897     if (IsVirtualList())
2898         return false;
2899
2900     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2901     if (!node)
2902         return false;
2903
2904     if (!node->HasChildren())
2905     {
2906         delete node;
2907         return false;
2908     }
2909
2910     return true;
2911 }
2912
2913 void wxDataViewMainWindow::Expand( unsigned int row )
2914 {
2915     if (IsVirtualList())
2916         return;
2917
2918     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2919     if (!node)
2920         return;
2921
2922     if (!node->HasChildren())
2923     {
2924         delete node;
2925         return;
2926     }
2927
2928             if (!node->IsOpen())
2929             {
2930                 wxDataViewEvent e =
2931                     SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem());
2932
2933                 // Check if the user prevent expanding
2934                 if( e.GetSkipped() )
2935                     return;
2936
2937                 node->ToggleOpen();
2938
2939                 // build the children of current node
2940                 if( node->GetChildrenNumber() == 0 )
2941                 {
2942                     SortPrepare();
2943                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2944                 }
2945
2946                 // By expanding the node all row indices that are currently in the selection list
2947                 // and are greater than our node have become invalid. So we have to correct that now.
2948                 const unsigned rowAdjustment = node->GetSubTreeCount();
2949                 for(unsigned i=0; i<m_selection.size(); ++i)
2950                 {
2951                     const unsigned testRow = m_selection[i];
2952                     // all rows above us are not affected, so skip them
2953                     if(testRow <= row)
2954                         continue;
2955
2956                     m_selection[i] += rowAdjustment;
2957                 }
2958
2959                 if(m_currentRow > row)
2960                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2961
2962                 m_count = -1;
2963                 UpdateDisplay();
2964                 // Send the expanded event
2965                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2966             }
2967 }
2968
2969 void wxDataViewMainWindow::Collapse(unsigned int row)
2970 {
2971     if (IsVirtualList())
2972         return;
2973
2974     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2975     if (!node)
2976         return;
2977
2978     if (!node->HasChildren())
2979     {
2980         delete node;
2981         return;
2982     }
2983
2984         if (node->IsOpen())
2985         {
2986             wxDataViewEvent e =
2987                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
2988             if( e.GetSkipped() )
2989                 return;
2990
2991             // Find out if there are selected items below the current node.
2992             bool selectCollapsingRow = false;
2993             const unsigned rowAdjustment = node->GetSubTreeCount();
2994             unsigned maxRowToBeTested = row + rowAdjustment;
2995             for(unsigned i=0; i<m_selection.size(); ++i)
2996             {
2997                 const unsigned testRow = m_selection[i];
2998                 if(testRow > row && testRow <= maxRowToBeTested)
2999                 {
3000                     selectCollapsingRow = true;
3001                     // get out as soon as we have found a node that is selected
3002                     break;
3003                 }
3004             }
3005
3006             node->ToggleOpen();
3007
3008             // If the node to be closed has selected items the user won't see those any longer.
3009             // We select the collapsing node in this case.
3010             if(selectCollapsingRow)
3011             {
3012                 SelectAllRows(false);
3013                 ChangeCurrentRow(row);
3014                 SelectRow(row, true);
3015                 SendSelectionChangedEvent(GetItemByRow(row));
3016             }
3017             else
3018             {
3019                 // if there were no selected items below our node we still need to "fix" the
3020                 // selection list to adjust for the changing of the row indices.
3021                 // We actually do the opposite of what we are doing in Expand().
3022                 for(unsigned i=0; i<m_selection.size(); ++i)
3023                 {
3024                     const unsigned testRow = m_selection[i];
3025                     // all rows above us are not affected, so skip them
3026                     if(testRow <= row)
3027                         continue;
3028
3029                     m_selection[i] -= rowAdjustment;
3030                 }
3031
3032                 // if the "current row" is being collapsed away we change it to the current row ;-)
3033                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3034                     ChangeCurrentRow(row);
3035                 else if(m_currentRow > row)
3036                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3037             }
3038
3039             m_count = -1;
3040             UpdateDisplay();
3041             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3042         }
3043 }
3044
3045 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3046 {
3047     wxDataViewModel * model = GetOwner()->GetModel();
3048     if( model == NULL )
3049         return NULL;
3050
3051     if (!item.IsOk())
3052         return m_root;
3053
3054     // Compose the a parent-chain of the finding item
3055     ItemList list;
3056     list.DeleteContents( true );
3057     wxDataViewItem it( item );
3058     while( it.IsOk() )
3059     {
3060         wxDataViewItem * pItem = new wxDataViewItem( it );
3061         list.Insert( pItem );
3062         it = model->GetParent( it );
3063     }
3064
3065     // Find the item along the parent-chain.
3066     // This algorithm is designed to speed up the node-finding method
3067     wxDataViewTreeNode * node = m_root;
3068     for( ItemList::const_iterator iter = list.begin(); iter !=list.end(); iter++ )
3069     {
3070         if( node->HasChildren() )
3071         {
3072             if( node->GetChildrenNumber() == 0 )
3073             {
3074                 SortPrepare();
3075                 ::BuildTreeHelper(model, node->GetItem(), node);
3076             }
3077
3078             wxDataViewTreeNodes nodes = node->GetNodes();
3079             unsigned int i;
3080             bool found = false;
3081
3082             for (i = 0; i < nodes.GetCount(); i ++)
3083             {
3084                 if (nodes[i]->GetItem() == (**iter))
3085                 {
3086                     if (nodes[i]->GetItem() == item)
3087                     return nodes[i];
3088
3089                     node = nodes[i];
3090                     found = true;
3091                     break;
3092                 }
3093             }
3094             if (!found)
3095                 return NULL;
3096         }
3097         else
3098             return NULL;
3099     }
3100     return NULL;
3101 }
3102
3103 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3104                                     wxDataViewColumn* &column )
3105 {
3106     wxDataViewColumn *col = NULL;
3107     unsigned int cols = GetOwner()->GetColumnCount();
3108     unsigned int colnum = 0;
3109     int x, y;
3110     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3111     for (unsigned x_start = 0; colnum < cols; colnum++)
3112     {
3113         col = GetOwner()->GetColumnAt(colnum);
3114         if (col->IsHidden())
3115             continue;      // skip it!
3116
3117         unsigned int w = col->GetWidth();
3118         if (x_start+w >= (unsigned int)x)
3119             break;
3120
3121         x_start += w;
3122     }
3123
3124     column = col;
3125     item = GetItemByRow( GetLineAt( y ) );
3126 }
3127
3128 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3129                                           const wxDataViewColumn* column )
3130 {
3131     int xpos = 0;
3132     int width = 0;
3133
3134     unsigned int cols = GetOwner()->GetColumnCount();
3135     // If column is null the loop will compute the combined width of all columns.
3136     // Otherwise, it will compute the x position of the column we are looking for.
3137     for (unsigned int i = 0; i < cols; i++)
3138     {
3139         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3140
3141         if (col == column)
3142             break;
3143
3144         if (col->IsHidden())
3145             continue;      // skip it!
3146
3147         xpos += col->GetWidth();
3148         width += col->GetWidth();
3149     }
3150
3151     if(column != 0)
3152     {
3153         // If we have a column, we need can get its width directly.
3154         if(column->IsHidden())
3155             width = 0;
3156         else
3157             width = column->GetWidth();
3158
3159     }
3160     else
3161     {
3162         // If we have no column, we reset the x position back to zero.
3163         xpos = 0;
3164     }
3165
3166     // we have to take an expander column into account and compute its indentation
3167     // to get the correct x position where the actual text is
3168     int indent = 0;
3169     int row = GetRowByItem(item);
3170     if (!IsVirtualList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3171     {
3172         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3173         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3174         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3175
3176         if(!node->HasChildren())
3177             delete node;
3178     }
3179
3180     wxRect itemRect( xpos + indent,
3181                      GetLineStart( row ),
3182                      width - indent,
3183                      GetLineHeight( row ) );
3184
3185     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3186                                       &itemRect.x, &itemRect.y );
3187
3188     return itemRect;
3189 }
3190
3191 int wxDataViewMainWindow::RecalculateCount()
3192 {
3193     if (IsVirtualList())
3194     {
3195         wxDataViewVirtualListModel *list_model =
3196             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3197
3198         return list_model->GetCount();
3199     }
3200     else
3201     {
3202         return m_root->GetSubTreeCount();
3203     }
3204 }
3205
3206 class ItemToRowJob : public DoJob
3207 {
3208 public:
3209     ItemToRowJob(const wxDataViewItem& item_, ItemList::const_iterator iter)
3210         : m_iter(iter),
3211         item(item_)
3212     {
3213         ret = -1;
3214     }
3215
3216     // Maybe binary search will help to speed up this process
3217     virtual int operator() ( wxDataViewTreeNode * node)
3218     {
3219         ret ++;
3220         if( node->GetItem() == item )
3221         {
3222             return DoJob::OK;
3223         }
3224
3225         if( node->GetItem() == **m_iter )
3226         {
3227             m_iter++;
3228             return DoJob::CONT;
3229         }
3230         else
3231         {
3232             ret += node->GetSubTreeCount();
3233             return DoJob::IGR;
3234         }
3235
3236     }
3237
3238     virtual int operator() ( void * n )
3239     {
3240         ret ++;
3241         if( n == item.GetID() )
3242             return DoJob::OK;
3243         return DoJob::CONT;
3244     }
3245
3246     // the row number is begin from zero
3247     int GetResult() const
3248         { return ret -1; }
3249
3250 private:
3251     ItemList::const_iterator  m_iter;
3252     wxDataViewItem item;
3253     int ret;
3254
3255 };
3256
3257 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3258 {
3259     const wxDataViewModel * model = GetOwner()->GetModel();
3260     if( model == NULL )
3261         return -1;
3262
3263     if (IsVirtualList())
3264     {
3265         return wxPtrToUInt( item.GetID() ) -1;
3266     }
3267     else
3268     {
3269         if( !item.IsOk() )
3270             return -1;
3271
3272         // Compose the a parent-chain of the finding item
3273         ItemList list;
3274         wxDataViewItem * pItem;
3275         list.DeleteContents( true );
3276         wxDataViewItem it( item );
3277         while( it.IsOk() )
3278         {
3279             pItem = new wxDataViewItem( it );
3280             list.Insert( pItem );
3281             it = model->GetParent( it );
3282         }
3283         pItem = new wxDataViewItem( );
3284         list.Insert( pItem );
3285
3286         ItemToRowJob job( item, list.begin() );
3287         Walker(m_root , job );
3288         return job.GetResult();
3289     }
3290 }
3291
3292 static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item,
3293                              wxDataViewTreeNode * node)
3294 {
3295     if( !model->IsContainer( item ) )
3296         return;
3297
3298     wxDataViewItemArray children;
3299     unsigned int num = model->GetChildren( item, children);
3300
3301     unsigned int index = 0;
3302     while( index < num )
3303     {
3304         if( model->IsContainer( children[index] ) )
3305         {
3306             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3307             n->SetItem(children[index]);
3308             n->SetHasChildren( true );
3309             node->AddNode( n );
3310         }
3311         else
3312         {
3313             node->AddLeaf( children[index].GetID() );
3314         }
3315         index ++;
3316     }
3317     node->SetSubTreeCount( num );
3318     wxDataViewTreeNode * n = node->GetParent();
3319     if( n != NULL)
3320         n->ChangeSubTreeCount(num);
3321
3322 }
3323
3324 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3325 {
3326     DestroyTree();
3327
3328     if (GetOwner()->GetModel()->IsVirtualListModel())
3329     {
3330         m_count = -1;
3331         return;
3332     }
3333
3334     m_root = new wxDataViewTreeNode( NULL );
3335     m_root->SetHasChildren(true);
3336
3337     // First we define a invalid item to fetch the top-level elements
3338     wxDataViewItem item;
3339     SortPrepare();
3340     BuildTreeHelper( model, item, m_root);
3341     m_count = -1;
3342 }
3343
3344 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3345 {
3346     if( node->GetNodeNumber() != 0 )
3347     {
3348         int len = node->GetNodeNumber();
3349         wxDataViewTreeNodes& nodes = node->GetNodes();
3350         for (int i = 0; i < len; i++)
3351             DestroyTreeHelper(nodes[i]);
3352     }
3353     delete node;
3354 }
3355
3356 void wxDataViewMainWindow::DestroyTree()
3357 {
3358     if (!IsVirtualList())
3359     {
3360         ::DestroyTreeHelper(m_root);
3361             m_count = 0;
3362             m_root = NULL;
3363     }
3364 }
3365
3366 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3367 {
3368     if ( GetParent()->HandleAsNavigationKey(event) )
3369         return;
3370
3371     // no item -> nothing to do
3372     if (!HasCurrentRow())
3373     {
3374         event.Skip();
3375         return;
3376     }
3377
3378     // don't use m_linesPerPage directly as it might not be computed yet
3379     const int pageSize = GetCountPerPage();
3380     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3381
3382     switch ( event.GetKeyCode() )
3383     {
3384         case WXK_RETURN:
3385             {
3386                 wxWindow *parent = GetParent();
3387                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3388                                    parent->GetId());
3389                 le.SetItem( GetItemByRow(m_currentRow) );
3390                 le.SetEventObject(parent);
3391                 le.SetModel(GetOwner()->GetModel());
3392
3393                 parent->GetEventHandler()->ProcessEvent(le);
3394             }
3395             break;
3396
3397         case WXK_UP:
3398             if ( m_currentRow > 0 )
3399                 OnArrowChar( m_currentRow - 1, event );
3400             break;
3401
3402         case WXK_DOWN:
3403             if ( m_currentRow < GetRowCount() - 1 )
3404                 OnArrowChar( m_currentRow + 1, event );
3405             break;
3406         // Add the process for tree expanding/collapsing
3407         case WXK_LEFT:
3408         {
3409             if (IsVirtualList())
3410                break;
3411
3412             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3413             if (!node)
3414                 break;
3415
3416             if (node->HasChildren() && node->IsOpen())
3417             {
3418                 Collapse(m_currentRow);
3419             }
3420             else    // if the node is already closed we move the selection to its parent
3421             {
3422                 wxDataViewTreeNode *parent_node = node->GetParent();
3423
3424                 if(!node->HasChildren())
3425                     delete node;
3426
3427                 if (parent_node)
3428                 {
3429                     int parent = GetRowByItem( parent_node->GetItem() );
3430                     if ( parent >= 0 )
3431                     {
3432                         unsigned int row = m_currentRow;
3433                         SelectRow( row, false);
3434                         SelectRow( parent, true );
3435                         ChangeCurrentRow( parent );
3436                         GetOwner()->EnsureVisible( parent, -1 );
3437                         SendSelectionChangedEvent( parent_node->GetItem() );
3438                     }
3439                 }
3440             }
3441             break;
3442         }
3443         case WXK_RIGHT:
3444         {
3445             if (!IsExpanded( m_currentRow ))
3446                 Expand( m_currentRow );
3447             else
3448             {
3449                 unsigned int row = m_currentRow;
3450                 SelectRow( row, false );
3451                 SelectRow( row + 1, true );
3452                 ChangeCurrentRow( row + 1 );
3453                 GetOwner()->EnsureVisible( row + 1, -1 );
3454                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3455             }
3456             break;
3457         }
3458         case WXK_END:
3459         {
3460             if (!IsEmpty())
3461                 OnArrowChar( GetRowCount() - 1, event );
3462             break;
3463         }
3464         case WXK_HOME:
3465             if (!IsEmpty())
3466                 OnArrowChar( 0, event );
3467             break;
3468
3469         case WXK_PAGEUP:
3470             {
3471                 int steps = pageSize - 1;
3472                 int index = m_currentRow - steps;
3473                 if (index < 0)
3474                     index = 0;
3475
3476                 OnArrowChar( index, event );
3477             }
3478             break;
3479
3480         case WXK_PAGEDOWN:
3481             {
3482                 int steps = pageSize - 1;
3483                 unsigned int index = m_currentRow + steps;
3484                 unsigned int count = GetRowCount();
3485                 if ( index >= count )
3486                     index = count - 1;
3487
3488                 OnArrowChar( index, event );
3489             }
3490             break;
3491
3492         case WXK_F2:
3493             {
3494                 if(m_selection.size() == 1)
3495                 {
3496                     // TODO: we need to revise that when we have a concept for a 'current column'
3497                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3498                 }
3499             }
3500             break;
3501
3502         default:
3503             event.Skip();
3504     }
3505 }
3506
3507 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3508 {
3509     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3510     {
3511         // let the base handle mouse wheel events.
3512         event.Skip();
3513         return;
3514     }
3515
3516     int x = event.GetX();
3517     int y = event.GetY();
3518     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3519     wxDataViewColumn *col = NULL;
3520
3521     int xpos = 0;
3522     unsigned int cols = GetOwner()->GetColumnCount();
3523     unsigned int i;
3524     for (i = 0; i < cols; i++)
3525     {
3526         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3527         if (c->IsHidden())
3528             continue;      // skip it!
3529
3530         if (x < xpos + c->GetWidth())
3531         {
3532             col = c;
3533             break;
3534         }
3535         xpos += c->GetWidth();
3536     }
3537     if (!col)
3538         return;
3539
3540     wxDataViewRenderer *cell = col->GetRenderer();
3541     unsigned int current = GetLineAt( y );
3542     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3543     {
3544         // Unselect all if below the last row ?
3545         return;
3546     }
3547
3548     // Test whether the mouse is hovered on the tree item button
3549     bool hoverOverExpander = false;
3550     if ((!IsVirtualList()) && (GetOwner()->GetExpanderColumn() == col))
3551     {
3552         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3553         if( node!=NULL && node->HasChildren() )
3554         {
3555             int indent = node->GetIndentLevel();
3556             indent = GetOwner()->GetIndent()*indent;
3557
3558             // we make the rectangle we are looking in a bit bigger than the actual
3559             // visual expander so the user can hit that little thing reliably
3560             wxRect rect( xpos + indent,
3561                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3562                         m_lineHeight, m_lineHeight);
3563             if( rect.Contains(x, y) )
3564             {
3565                 // So the mouse is over the expander
3566                 hoverOverExpander = true;
3567                 if (m_underMouse && m_underMouse != node)
3568                 {
3569                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3570                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3571                 }
3572                 if (m_underMouse != node)
3573                 {
3574                     // wxLogMessage("Do the row: %d", current);
3575                     RefreshRow(current);
3576                 }
3577                 m_underMouse = node;
3578             }
3579         }
3580         if (node!=NULL && !node->HasChildren())
3581             delete node;
3582     }
3583     if (!hoverOverExpander)
3584     {
3585         if (m_underMouse != NULL)
3586         {
3587             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3588             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3589             m_underMouse = NULL;
3590         }
3591     }
3592
3593     wxDataViewModel *model = GetOwner()->GetModel();
3594
3595 #if wxUSE_DRAG_AND_DROP
3596     if (event.Dragging())
3597     {
3598         if (m_dragCount == 0)
3599         {
3600             // we have to report the raw, physical coords as we want to be
3601             // able to call HitTest(event.m_pointDrag) from the user code to
3602             // get the item being dragged
3603             m_dragStart = event.GetPosition();
3604         }
3605
3606         m_dragCount++;
3607
3608         if (m_dragCount != 3)
3609             return;
3610
3611         if (event.LeftIsDown())
3612         {
3613             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3614                                              &m_dragStart.x, &m_dragStart.y );
3615             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3616             wxDataViewItem item = GetItemByRow( drag_item_row );
3617
3618             // Notify cell about drag
3619             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3620             event.SetEventObject( m_owner );
3621             event.SetItem( item );
3622             event.SetModel( model );
3623             if (!m_owner->HandleWindowEvent( event ))
3624                 return;
3625
3626             if (!event.IsAllowed())
3627                 return;
3628
3629             wxDataObject *obj = event.GetDataObject();
3630             if (!obj)
3631                 return;
3632
3633             wxDataViewDropSource drag( this, drag_item_row );
3634             drag.SetData( *obj );
3635             /* wxDragResult res = */ drag.DoDragDrop();
3636             delete obj;
3637         }
3638         return;
3639     }
3640     else
3641     {
3642         m_dragCount = 0;
3643     }
3644 #endif // wxUSE_DRAG_AND_DROP
3645
3646     bool simulateClick = false;
3647
3648     if (event.ButtonDClick())
3649     {
3650         m_renameTimer->Stop();
3651         m_lastOnSame = false;
3652     }
3653
3654     wxDataViewItem item = GetItemByRow(current);
3655     bool ignore_other_columns =
3656         ((GetOwner()->GetExpanderColumn() != col) &&
3657         (model->IsContainer(item)) &&
3658         (!model->HasContainerColumns(item)));
3659
3660     if (event.LeftDClick())
3661     {
3662         if(hoverOverExpander)
3663         {
3664             // a double click on the expander will be converted into a "simulated" normal click
3665             simulateClick = true;
3666         }
3667         else if ( current == m_lineLastClicked )
3668         {
3669             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3670             {
3671                 wxVariant value;
3672                 model->GetValue( value, item, col->GetModelColumn() );
3673                 cell->SetValue( value );
3674                 wxRect cell_rect( xpos, GetLineStart( current ),
3675                                 col->GetWidth(), GetLineHeight( current ) );
3676                 cell->Activate( cell_rect, model, item, col->GetModelColumn() );
3677             }
3678             else
3679             {
3680                 wxWindow *parent = GetParent();
3681                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3682                 le.SetItem( item );
3683                 le.SetEventObject(parent);
3684                 le.SetModel(GetOwner()->GetModel());
3685
3686                 parent->GetEventHandler()->ProcessEvent(le);
3687             }
3688             return;
3689         }
3690         else
3691         {
3692             // The first click was on another item, so don't interpret this as
3693             // a double click, but as a simple click instead
3694             simulateClick = true;
3695         }
3696     }
3697
3698     if (event.LeftUp() && !hoverOverExpander)
3699     {
3700         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3701         {
3702             // select single line
3703             SelectAllRows( false );
3704             SelectRow( m_lineSelectSingleOnUp, true );
3705             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3706         }
3707
3708         // If the user click the expander, we do not do editing even if the column
3709         // with expander are editable
3710         if (m_lastOnSame && !ignore_other_columns)
3711         {
3712             if ((col == m_currentCol) && (current == m_currentRow) &&
3713                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3714             {
3715                 m_renameTimer->Start( 100, true );
3716             }
3717         }
3718
3719         m_lastOnSame = false;
3720         m_lineSelectSingleOnUp = (unsigned int)-1;
3721     }
3722     else if(!event.LeftUp())
3723     {
3724         // This is necessary, because after a DnD operation in
3725         // from and to ourself, the up event is swallowed by the
3726         // DnD code. So on next non-up event (which means here and
3727         // now) m_lineSelectSingleOnUp should be reset.
3728         m_lineSelectSingleOnUp = (unsigned int)-1;
3729     }
3730
3731     if (event.RightDown())
3732     {
3733         m_lineBeforeLastClicked = m_lineLastClicked;
3734         m_lineLastClicked = current;
3735
3736         // If the item is already selected, do not update the selection.
3737         // Multi-selections should not be cleared if a selected item is clicked.
3738         if (!IsRowSelected(current))
3739         {
3740             SelectAllRows(false);
3741             ChangeCurrentRow(current);
3742             SelectRow(m_currentRow,true);
3743             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3744         }
3745     }
3746     else if (event.RightUp())
3747     {
3748         wxVariant value;
3749         model->GetValue( value, item, col->GetModelColumn() );
3750         wxWindow *parent = GetParent();
3751         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3752         le.SetItem( item );
3753         le.SetEventObject(parent);
3754         le.SetModel(GetOwner()->GetModel());
3755         le.SetValue(value);
3756         parent->GetEventHandler()->ProcessEvent(le);
3757     }
3758     else if (event.MiddleDown())
3759     {
3760     }
3761
3762     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3763     {
3764         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3765
3766         // hoverOverExpander being true tells us that our node must be
3767         // valid and have children.
3768         // So we don't need any extra checks.
3769         if( node->IsOpen() )
3770             Collapse(current);
3771         else
3772             Expand(current);
3773     }
3774     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3775     {
3776         SetFocus();
3777
3778         m_lineBeforeLastClicked = m_lineLastClicked;
3779         m_lineLastClicked = current;
3780
3781         unsigned int oldCurrentRow = m_currentRow;
3782         bool oldWasSelected = IsRowSelected(m_currentRow);
3783
3784         bool cmdModifierDown = event.CmdDown();
3785         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3786         {
3787             if ( IsSingleSel() || !IsRowSelected(current) )
3788             {
3789                 SelectAllRows( false );
3790                 ChangeCurrentRow(current);
3791                 SelectRow(m_currentRow,true);
3792                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3793             }
3794             else // multi sel & current is highlighted & no mod keys
3795             {
3796                 m_lineSelectSingleOnUp = current;
3797                 ChangeCurrentRow(current); // change focus
3798             }
3799         }
3800         else // multi sel & either ctrl or shift is down
3801         {
3802             if (cmdModifierDown)
3803             {
3804                 ChangeCurrentRow(current);
3805                 ReverseRowSelection(m_currentRow);
3806                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3807             }
3808             else if (event.ShiftDown())
3809             {
3810                 ChangeCurrentRow(current);
3811
3812                 unsigned int lineFrom = oldCurrentRow,
3813                     lineTo = current;
3814
3815                 if ( lineTo < lineFrom )
3816                 {
3817                     lineTo = lineFrom;
3818                     lineFrom = m_currentRow;
3819                 }
3820
3821                 SelectRows(lineFrom, lineTo, true);
3822                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3823             }
3824             else // !ctrl, !shift
3825             {
3826                 // test in the enclosing if should make it impossible
3827                 wxFAIL_MSG( wxT("how did we get here?") );
3828             }
3829         }
3830
3831         if (m_currentRow != oldCurrentRow)
3832             RefreshRow( oldCurrentRow );
3833
3834         wxDataViewColumn *oldCurrentCol = m_currentCol;
3835
3836         // Update selection here...
3837         m_currentCol = col;
3838
3839         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3840                         (current == oldCurrentRow)) && oldWasSelected;
3841
3842         // Call LeftClick after everything else as under GTK+
3843         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3844         {
3845             // notify cell about right click
3846             wxVariant value;
3847             model->GetValue( value, item, col->GetModelColumn() );
3848             cell->SetValue( value );
3849             wxRect cell_rect( xpos, GetLineStart( current ),
3850                               col->GetWidth(), GetLineHeight( current ) );
3851              /* ignore ret */ cell->LeftClick( event.GetPosition(), cell_rect,
3852                               model, item, col->GetModelColumn());
3853         }
3854     }
3855 }
3856
3857 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3858 {
3859     m_hasFocus = true;
3860
3861     if (HasCurrentRow())
3862         Refresh();
3863
3864     event.Skip();
3865 }
3866
3867 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3868 {
3869     m_hasFocus = false;
3870
3871     if (HasCurrentRow())
3872         Refresh();
3873
3874     event.Skip();
3875 }
3876
3877 wxDataViewItem wxDataViewMainWindow::GetSelection() const
3878 {
3879     if( m_selection.GetCount() != 1 )
3880         return wxDataViewItem();
3881
3882     return GetItemByRow( m_selection.Item(0));
3883 }
3884
3885 //-----------------------------------------------------------------------------
3886 // wxDataViewCtrl
3887 //-----------------------------------------------------------------------------
3888
3889 WX_DEFINE_LIST(wxDataViewColumnList)
3890
3891 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3892 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3893     EVT_SIZE(wxDataViewCtrl::OnSize)
3894 END_EVENT_TABLE()
3895
3896 wxDataViewCtrl::~wxDataViewCtrl()
3897 {
3898     if (m_notifier)
3899         GetModel()->RemoveNotifier( m_notifier );
3900
3901     m_cols.Clear();
3902 }
3903
3904 void wxDataViewCtrl::Init()
3905 {
3906     m_cols.DeleteContents(true);
3907     m_notifier = NULL;
3908
3909     // No sorting column at start
3910     m_sortingColumnIdx = wxNOT_FOUND;
3911
3912     m_headerArea = NULL;
3913 }
3914
3915 bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
3916                             const wxPoint& pos, const wxSize& size,
3917                             long style, const wxValidator& validator )
3918 {
3919 //    if ( (style & wxBORDER_MASK) == 0)
3920 //        style |= wxBORDER_SUNKEN;
3921
3922     Init();
3923
3924     if (!wxControl::Create( parent, id, pos, size,
3925                             style | wxScrolledWindowStyle, validator))
3926         return false;
3927
3928     SetInitialSize(size);
3929
3930 #ifdef __WXMAC__
3931     MacSetClipChildren( true );
3932 #endif
3933
3934     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
3935
3936     if (HasFlag(wxDV_NO_HEADER))
3937         m_headerArea = NULL;
3938     else
3939         m_headerArea = new wxDataViewHeaderWindow(this);
3940
3941     SetTargetWindow( m_clientArea );
3942
3943     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
3944     if (m_headerArea)
3945         sizer->Add( m_headerArea, 0, wxGROW );
3946     sizer->Add( m_clientArea, 1, wxGROW );
3947     SetSizer( sizer );
3948
3949     return true;
3950 }
3951
3952 wxBorder wxDataViewCtrl::GetDefaultBorder() const
3953 {
3954     return wxBORDER_THEME;
3955 }
3956
3957 #ifdef __WXMSW__
3958 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
3959                                         WXWPARAM wParam,
3960                                         WXLPARAM lParam)
3961 {
3962     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
3963
3964 #ifndef __WXWINCE__
3965     // we need to process arrows ourselves for scrolling
3966     if ( nMsg == WM_GETDLGCODE )
3967     {
3968         rc |= DLGC_WANTARROWS;
3969     }
3970 #endif
3971
3972     return rc;
3973 }
3974 #endif
3975
3976 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
3977 {
3978     wxSize newsize = size;
3979     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
3980     newsize.y -= m_headerArea->GetSize().y;
3981
3982     return newsize;
3983 }
3984
3985 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
3986 {
3987     // We need to override OnSize so that our scrolled
3988     // window a) does call Layout() to use sizers for
3989     // positioning the controls but b) does not query
3990     // the sizer for their size and use that for setting
3991     // the scrollable area as set that ourselves by
3992     // calling SetScrollbar() further down.
3993
3994     Layout();
3995
3996     AdjustScrollbars();
3997 }
3998
3999 void wxDataViewCtrl::SetFocus()
4000 {
4001     if (m_clientArea)
4002         m_clientArea->SetFocus();
4003 }
4004
4005 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4006 {
4007     if (!wxDataViewCtrlBase::AssociateModel( model ))
4008         return false;
4009
4010     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4011
4012     model->AddNotifier( m_notifier );
4013
4014     m_clientArea->DestroyTree();
4015
4016     m_clientArea->BuildTree(model);
4017
4018     m_clientArea->UpdateDisplay();
4019
4020     return true;
4021 }
4022
4023 #if wxUSE_DRAG_AND_DROP
4024
4025 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4026 {
4027     return m_clientArea->EnableDragSource( format );
4028 }
4029
4030 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4031 {
4032     return m_clientArea->EnableDropTarget( format );
4033 }
4034
4035 #endif // wxUSE_DRAG_AND_DROP
4036
4037 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4038 {
4039     if (!wxDataViewCtrlBase::AppendColumn(col))
4040         return false;
4041
4042     m_cols.Append( col );
4043     OnColumnsCountChanged();
4044     return true;
4045 }
4046
4047 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4048 {
4049     if (!wxDataViewCtrlBase::PrependColumn(col))
4050         return false;
4051
4052     m_cols.Insert( col );
4053     OnColumnsCountChanged();
4054     return true;
4055 }
4056
4057 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4058 {
4059     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4060         return false;
4061
4062     m_cols.Insert( pos, col );
4063     OnColumnsCountChanged();
4064     return true;
4065 }
4066
4067 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4068 {
4069     if ( m_headerArea )
4070         m_headerArea->UpdateColumn(idx);
4071
4072     m_clientArea->UpdateDisplay();
4073 }
4074
4075 void wxDataViewCtrl::OnColumnsCountChanged()
4076 {
4077     if (m_headerArea)
4078         m_headerArea->SetColumnCount(GetColumnCount());
4079
4080     m_clientArea->UpdateDisplay();
4081 }
4082
4083 void wxDataViewCtrl::DoSetExpanderColumn()
4084 {
4085     m_clientArea->UpdateDisplay();
4086 }
4087
4088 void wxDataViewCtrl::DoSetIndent()
4089 {
4090     m_clientArea->UpdateDisplay();
4091 }
4092
4093 unsigned int wxDataViewCtrl::GetColumnCount() const
4094 {
4095     return m_cols.GetCount();
4096 }
4097
4098 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4099 {
4100     return m_cols[idx];
4101 }
4102
4103 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4104 {
4105     // columns can't be reordered if there is no header window which allows
4106     // to do this
4107     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4108                                     : pos;
4109
4110     return GetColumn(idx);
4111 }
4112
4113 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4114 {
4115     const unsigned count = m_cols.size();
4116     for ( unsigned n = 0; n < count; n++ )
4117     {
4118         if ( m_cols[n] == column )
4119             return n;
4120     }
4121
4122     return wxNOT_FOUND;
4123 }
4124
4125 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4126                                 unsigned int WXUNUSED(new_pos))
4127 {
4128     // do _not_ reorder m_cols elements here, they should always be in the
4129     // order in which columns were added, we only display the columns in
4130     // different order
4131     m_clientArea->UpdateDisplay();
4132 }
4133
4134 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4135 {
4136     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4137     if (!ret)
4138         return false;
4139
4140     m_cols.Erase(ret);
4141     OnColumnsCountChanged();
4142
4143     return true;
4144 }
4145
4146 bool wxDataViewCtrl::ClearColumns()
4147 {
4148     m_cols.Clear();
4149     OnColumnsCountChanged();
4150     return true;
4151 }
4152
4153 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4154 {
4155     int ret = 0,
4156         dummy = 0;
4157     unsigned int len = GetColumnCount();
4158     for ( unsigned int i = 0; i < len; i++ )
4159     {
4160         wxDataViewColumn * col = GetColumnAt(i);
4161         if (col->IsHidden())
4162             continue;
4163         ret += col->GetWidth();
4164         if (column==col)
4165         {
4166             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4167             break;
4168         }
4169     }
4170     return ret;
4171 }
4172
4173 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4174 {
4175     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4176                                             : GetColumn(m_sortingColumnIdx);
4177 }
4178
4179 // Selection code with wxDataViewItem as parameters
4180 wxDataViewItem wxDataViewCtrl::GetSelection() const
4181 {
4182     return m_clientArea->GetSelection();
4183 }
4184
4185 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4186 {
4187     sel.Empty();
4188     wxDataViewSelection selection = m_clientArea->GetSelections();
4189     int len = selection.GetCount();
4190     for( int i = 0; i < len; i ++)
4191     {
4192         unsigned int row = selection[i];
4193         sel.Add( m_clientArea->GetItemByRow( row ) );
4194     }
4195     return len;
4196 }
4197
4198 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4199 {
4200     wxDataViewSelection selection(wxDataViewSelectionCmp);
4201
4202     wxDataViewItem last_parent;
4203
4204     int len = sel.GetCount();
4205     for( int i = 0; i < len; i ++ )
4206     {
4207         wxDataViewItem item = sel[i];
4208         wxDataViewItem parent = GetModel()->GetParent( item );
4209         if (parent)
4210         {
4211             if (parent != last_parent)
4212                 ExpandAncestors(item);
4213         }
4214
4215         last_parent = parent;
4216         int row = m_clientArea->GetRowByItem( item );
4217         if( row >= 0 )
4218             selection.Add( static_cast<unsigned int>(row) );
4219     }
4220
4221     m_clientArea->SetSelections( selection );
4222 }
4223
4224 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4225 {
4226     ExpandAncestors( item );
4227
4228     int row = m_clientArea->GetRowByItem( item );
4229     if( row >= 0 )
4230     {
4231         // Unselect all rows before select another in the single select mode
4232         if (m_clientArea->IsSingleSel())
4233             m_clientArea->SelectAllRows(false);
4234         m_clientArea->SelectRow(row, true);
4235     }
4236 }
4237
4238 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4239 {
4240     int row = m_clientArea->GetRowByItem( item );
4241     if( row >= 0 )
4242         m_clientArea->SelectRow(row, false);
4243 }
4244
4245 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4246 {
4247     int row = m_clientArea->GetRowByItem( item );
4248     if( row >= 0 )
4249     {
4250         return m_clientArea->IsRowSelected(row);
4251     }
4252     return false;
4253 }
4254
4255 // Selection code with row number as parameter
4256 int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
4257 {
4258     sel.Empty();
4259     wxDataViewSelection selection = m_clientArea->GetSelections();
4260     int len = selection.GetCount();
4261     for( int i = 0; i < len; i ++)
4262     {
4263         unsigned int row = selection[i];
4264         sel.Add( row );
4265     }
4266     return len;
4267 }
4268
4269 void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )
4270 {
4271     wxDataViewSelection selection(wxDataViewSelectionCmp);
4272     int len = sel.GetCount();
4273     for( int i = 0; i < len; i ++ )
4274     {
4275         int row = sel[i];
4276         if( row >= 0 )
4277             selection.Add( static_cast<unsigned int>(row) );
4278     }
4279     m_clientArea->SetSelections( selection );
4280 }
4281
4282 void wxDataViewCtrl::Select( int row )
4283 {
4284     if( row >= 0 )
4285     {
4286         if (m_clientArea->IsSingleSel())
4287             m_clientArea->SelectAllRows(false);
4288         m_clientArea->SelectRow( row, true );
4289     }
4290 }
4291
4292 void wxDataViewCtrl::Unselect( int row )
4293 {
4294     if( row >= 0 )
4295         m_clientArea->SelectRow(row, false);
4296 }
4297
4298 bool wxDataViewCtrl::IsSelected( int row ) const
4299 {
4300     if( row >= 0 )
4301         return m_clientArea->IsRowSelected(row);
4302     return false;
4303 }
4304
4305 void wxDataViewCtrl::SelectRange( int from, int to )
4306 {
4307     wxArrayInt sel;
4308     for( int i = from; i < to; i ++ )
4309         sel.Add( i );
4310     m_clientArea->Select(sel);
4311 }
4312
4313 void wxDataViewCtrl::UnselectRange( int from, int to )
4314 {
4315     wxDataViewSelection sel = m_clientArea->GetSelections();
4316     for( int i = from; i < to; i ++ )
4317         if( sel.Index( i ) != wxNOT_FOUND )
4318             sel.Remove( i );
4319     m_clientArea->SetSelections(sel);
4320 }
4321
4322 void wxDataViewCtrl::SelectAll()
4323 {
4324     m_clientArea->SelectAllRows(true);
4325 }
4326
4327 void wxDataViewCtrl::UnselectAll()
4328 {
4329     m_clientArea->SelectAllRows(false);
4330 }
4331
4332 void wxDataViewCtrl::EnsureVisible( int row, int column )
4333 {
4334     if( row < 0 )
4335         row = 0;
4336     if( row > (int) m_clientArea->GetRowCount() )
4337         row = m_clientArea->GetRowCount();
4338
4339     int first = m_clientArea->GetFirstVisibleRow();
4340     int last = m_clientArea->GetLastVisibleRow();
4341     if( row < first )
4342         m_clientArea->ScrollTo( row, column );
4343     else if( row > last )
4344         m_clientArea->ScrollTo( row - last + first, column );
4345     else
4346         m_clientArea->ScrollTo( first, column );
4347 }
4348
4349 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4350 {
4351     ExpandAncestors( item );
4352
4353     m_clientArea->RecalculateDisplay();
4354
4355     int row = m_clientArea->GetRowByItem(item);
4356     if( row >= 0 )
4357     {
4358         if( column == NULL )
4359             EnsureVisible(row, -1);
4360         else
4361             EnsureVisible( row, GetColumnIndex(column) );
4362     }
4363
4364 }
4365
4366 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4367                               wxDataViewColumn* &column ) const
4368 {
4369     m_clientArea->HitTest(point, item, column);
4370 }
4371
4372 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4373                                     const wxDataViewColumn* column ) const
4374 {
4375     return m_clientArea->GetItemRect(item, column);
4376 }
4377
4378 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4379 {
4380     return m_clientArea->GetItemByRow( row );
4381 }
4382
4383 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4384 {
4385     return m_clientArea->GetRowByItem( item );
4386 }
4387
4388 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4389 {
4390     int row = m_clientArea->GetRowByItem( item );
4391     if (row != -1)
4392         m_clientArea->Expand(row);
4393 }
4394
4395 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4396 {
4397     int row = m_clientArea->GetRowByItem( item );
4398     if (row != -1)
4399         m_clientArea->Collapse(row);
4400 }
4401
4402 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4403 {
4404     int row = m_clientArea->GetRowByItem( item );
4405     if (row != -1)
4406         return m_clientArea->IsExpanded(row);
4407     return false;
4408 }
4409
4410 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4411 {
4412     wxDataViewColumn* col = GetColumn( column );
4413     if (!col)
4414         return;
4415
4416     wxRect itemRect = GetItemRect(item, col);
4417     wxDataViewRenderer* renderer = col->GetRenderer();
4418     renderer->StartEditing(item, itemRect);
4419 }
4420
4421 #endif // !wxUSE_GENERICDATAVIEWCTRL
4422
4423 #endif // wxUSE_DATAVIEWCTRL