src/generic/datavgen.cpp

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