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/popupwin.h"
  42 #include "wx/renderer.h"
  43 #include "wx/dcbuffer.h"
  44 #include "wx/icon.h"
  45 #include "wx/list.h"
  46 #include "wx/listimpl.cpp"
  47 #include "wx/imaglist.h"
  48 #include "wx/headerctrl.h"
  49 #include "wx/dnd.h"
  50 #include "wx/stopwatch.h"
  51 #include "wx/weakref.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 // helper functions
  88 // ----------------------------------------------------------------------------
  89
  90 namespace
  91 {
  92
  93 // Return the expander column or, if it is not set, the first column and also
  94 // set it as the expander one for the future.
  95 wxDataViewColumn* GetExpanderColumnOrFirstOne(wxDataViewCtrl* dataview)
  96 {
  97     wxDataViewColumn* expander = dataview->GetExpanderColumn();
  98     if (!expander)
  99     {
 100         // TODO-RTL: last column for RTL support
 101         expander = dataview->GetColumnAt( 0 );
 102         dataview->SetExpanderColumn(expander);
 103     }
 104
 105     return expander;
 106 }
 107
 108 } // anonymous namespace
 109
 110 //-----------------------------------------------------------------------------
 111 // wxDataViewColumn
 112 //-----------------------------------------------------------------------------
 113
 114 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
 115 {
 116     m_width = width;
 117     m_minWidth = 0;
 118     m_align = align;
 119     m_flags = flags;
 120     m_sort = false;
 121     m_sortAscending = true;
 122 }
 123
 124 int wxDataViewColumn::GetWidth() const
 125 {
 126     switch ( m_width )
 127     {
 128         case wxCOL_WIDTH_DEFAULT:
 129             return wxDVC_DEFAULT_WIDTH;
 130
 131         case wxCOL_WIDTH_AUTOSIZE:
 132             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 133             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 134
 135         default:
 136             return m_width;
 137     }
 138 }
 139
 140 void wxDataViewColumn::UpdateDisplay()
 141 {
 142     if (m_owner)
 143     {
 144         int idx = m_owner->GetColumnIndex( this );
 145         m_owner->OnColumnChange( idx );
 146     }
 147 }
 148
 149 void wxDataViewColumn::SetSortOrder(bool ascending)
 150 {
 151     if ( !m_owner )
 152         return;
 153
 154     // First unset the old sort column if any.
 155     int oldSortKey = m_owner->GetSortingColumnIndex();
 156     if ( oldSortKey != wxNOT_FOUND )
 157     {
 158         m_owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 159     }
 160
 161     // Now set this one as the new sort column.
 162     const int idx = m_owner->GetColumnIndex(this);
 163     m_owner->SetSortingColumnIndex(idx);
 164
 165     m_sort = true;
 166     m_sortAscending = ascending;
 167
 168     // Call this directly instead of using UpdateDisplay() as we already have
 169     // the column index, no need to look it up again.
 170     m_owner->OnColumnChange(idx);
 171 }
 172
 173 //-----------------------------------------------------------------------------
 174 // wxDataViewHeaderWindow
 175 //-----------------------------------------------------------------------------
 176
 177 class wxDataViewHeaderWindow : public wxHeaderCtrl
 178 {
 179 public:
 180     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 181         : wxHeaderCtrl(parent)
 182     {
 183     }
 184
 185     wxDataViewCtrl *GetOwner() const
 186         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 187
 188 protected:
 189     // implement/override wxHeaderCtrl functions by forwarding them to the main
 190     // control
 191     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 192     {
 193         return *(GetOwner()->GetColumn(idx));
 194     }
 195
 196     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 197     {
 198         wxDataViewCtrl * const owner = GetOwner();
 199
 200         int widthContents = owner->GetBestColumnWidth(idx);
 201         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 202         owner->OnColumnChange(idx);
 203
 204         return true;
 205     }
 206
 207 private:
 208     bool SendEvent(wxEventType type, unsigned int n)
 209     {
 210         wxDataViewCtrl * const owner = GetOwner();
 211         wxDataViewEvent event(type, owner->GetId());
 212
 213         event.SetEventObject(owner);
 214         event.SetColumn(n);
 215         event.SetDataViewColumn(owner->GetColumn(n));
 216         event.SetModel(owner->GetModel());
 217
 218         // for events created by wxDataViewHeaderWindow the
 219         // row / value fields are not valid
 220         return owner->ProcessWindowEvent(event);
 221     }
 222
 223     void OnClick(wxHeaderCtrlEvent& event)
 224     {
 225         const unsigned idx = event.GetColumn();
 226
 227         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 228             return;
 229
 230         // default handling for the column click is to sort by this column or
 231         // toggle its sort order
 232         wxDataViewCtrl * const owner = GetOwner();
 233         wxDataViewColumn * const col = owner->GetColumn(idx);
 234         if ( !col->IsSortable() )
 235         {
 236             // no default handling for non-sortable columns
 237             event.Skip();
 238             return;
 239         }
 240
 241         if ( col->IsSortKey() )
 242         {
 243             // already using this column for sorting, just change the order
 244             col->ToggleSortOrder();
 245         }
 246         else // not using this column for sorting yet
 247         {
 248             col->SetSortOrder(true);
 249         }
 250
 251         wxDataViewModel * const model = owner->GetModel();
 252         if ( model )
 253             model->Resort();
 254
 255         owner->OnColumnChange(idx);
 256
 257         SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
 258     }
 259
 260     void OnRClick(wxHeaderCtrlEvent& event)
 261     {
 262         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 263                         event.GetColumn()) )
 264             event.Skip();
 265     }
 266
 267     void OnResize(wxHeaderCtrlEvent& event)
 268     {
 269         wxDataViewCtrl * const owner = GetOwner();
 270
 271         const unsigned col = event.GetColumn();
 272         owner->GetColumn(col)->SetWidth(event.GetWidth());
 273         GetOwner()->OnColumnChange(col);
 274     }
 275
 276     void OnEndReorder(wxHeaderCtrlEvent& event)
 277     {
 278         wxDataViewCtrl * const owner = GetOwner();
 279         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 280                         event.GetNewOrder());
 281     }
 282
 283     DECLARE_EVENT_TABLE()
 284     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 285 };
 286
 287 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 288     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 289     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 290
 291     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 292     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 293
 294     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 295 END_EVENT_TABLE()
 296
 297 //-----------------------------------------------------------------------------
 298 // wxDataViewRenameTimer
 299 //-----------------------------------------------------------------------------
 300
 301 class wxDataViewRenameTimer: public wxTimer
 302 {
 303 private:
 304     wxDataViewMainWindow *m_owner;
 305
 306 public:
 307     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 308     void Notify();
 309 };
 310
 311 //-----------------------------------------------------------------------------
 312 // wxDataViewTreeNode
 313 //-----------------------------------------------------------------------------
 314
 315 class wxDataViewTreeNode;
 316 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 317
 318 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 319                                            wxDataViewTreeNode ** node2);
 320
 321 class wxDataViewTreeNode
 322 {
 323 public:
 324     wxDataViewTreeNode(wxDataViewTreeNode *parent, const wxDataViewItem& item)
 325         : m_parent(parent),
 326           m_item(item),
 327           m_branchData(NULL)
 328     {
 329     }
 330
 331     ~wxDataViewTreeNode()
 332     {
 333         if ( m_branchData )
 334         {
 335             wxDataViewTreeNodes& nodes = m_branchData->children;
 336             for ( wxDataViewTreeNodes::iterator i = nodes.begin();
 337                   i != nodes.end();
 338                   ++i )
 339             {
 340                 delete *i;
 341             }
 342
 343             delete m_branchData;
 344         }
 345     }
 346
 347     static wxDataViewTreeNode* CreateRootNode()
 348     {
 349         wxDataViewTreeNode *n = new wxDataViewTreeNode(NULL, wxDataViewItem());
 350         n->SetHasChildren(true);
 351         n->m_branchData->open = true;
 352         return n;
 353     }
 354
 355     wxDataViewTreeNode * GetParent() const { return m_parent; }
 356
 357     const wxDataViewTreeNodes& GetChildNodes() const
 358     {
 359         wxASSERT( m_branchData != NULL );
 360         return m_branchData->children;
 361     }
 362
 363     void InsertChild(wxDataViewTreeNode *node, unsigned index)
 364     {
 365         if ( !m_branchData )
 366             m_branchData = new BranchNodeData;
 367
 368         m_branchData->children.Insert(node, index);
 369
 370         // TODO: insert into sorted array directly in O(log n) instead of resorting in O(n log n)
 371         if (g_column >= -1)
 372             m_branchData->children.Sort( &wxGenericTreeModelNodeCmp );
 373     }
 374
 375     void RemoveChild(wxDataViewTreeNode *node)
 376     {
 377         wxCHECK_RET( m_branchData != NULL, "leaf node doesn't have children" );
 378         m_branchData->children.Remove(node);
 379     }
 380
 381     // returns position of child node for given item in children list or wxNOT_FOUND
 382     int FindChildByItem(const wxDataViewItem& item) const
 383     {
 384         if ( !m_branchData )
 385             return wxNOT_FOUND;
 386
 387         const wxDataViewTreeNodes& nodes = m_branchData->children;
 388         const int len = nodes.size();
 389         for ( int i = 0; i < len; i++ )
 390         {
 391             if ( nodes[i]->m_item == item )
 392                 return i;
 393         }
 394         return wxNOT_FOUND;
 395     }
 396
 397     const wxDataViewItem & GetItem() const { return m_item; }
 398     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 399
 400     int GetIndentLevel() const
 401     {
 402         int ret = 0;
 403         const wxDataViewTreeNode * node = this;
 404         while( node->GetParent()->GetParent() != NULL )
 405         {
 406             node = node->GetParent();
 407             ret ++;
 408         }
 409         return ret;
 410     }
 411
 412     bool IsOpen() const
 413     {
 414         return m_branchData && m_branchData->open;
 415     }
 416
 417     void ToggleOpen()
 418     {
 419         wxCHECK_RET( m_branchData != NULL, "can't open leaf node" );
 420
 421         int sum = 0;
 422
 423         const wxDataViewTreeNodes& nodes = m_branchData->children;
 424         const int len = nodes.GetCount();
 425         for ( int i = 0;i < len; i ++)
 426             sum += 1 + nodes[i]->GetSubTreeCount();
 427
 428         if (m_branchData->open)
 429         {
 430             ChangeSubTreeCount(-sum);
 431             m_branchData->open = !m_branchData->open;
 432         }
 433         else
 434         {
 435             m_branchData->open = !m_branchData->open;
 436             ChangeSubTreeCount(+sum);
 437         }
 438     }
 439
 440     // "HasChildren" property corresponds to model's IsContainer(). Note that it may be true
 441     // even if GetChildNodes() is empty; see below.
 442     bool HasChildren() const
 443     {
 444         return m_branchData != NULL;
 445     }
 446
 447     void SetHasChildren(bool has)
 448     {
 449         if ( !has )
 450         {
 451             wxDELETE(m_branchData);
 452         }
 453         else if ( m_branchData == NULL )
 454         {
 455             m_branchData = new BranchNodeData;
 456         }
 457     }
 458
 459     int GetSubTreeCount() const
 460     {
 461         return m_branchData ? m_branchData->subTreeCount : 0;
 462     }
 463
 464     void ChangeSubTreeCount( int num )
 465     {
 466         wxASSERT( m_branchData != NULL );
 467
 468         if( !m_branchData->open )
 469             return;
 470
 471         m_branchData->subTreeCount += num;
 472         wxASSERT( m_branchData->subTreeCount >= 0 );
 473
 474         if( m_parent )
 475             m_parent->ChangeSubTreeCount(num);
 476     }
 477
 478     void Resort()
 479     {
 480         if ( !m_branchData )
 481             return;
 482
 483         if (g_column >= -1)
 484         {
 485             wxDataViewTreeNodes& nodes = m_branchData->children;
 486
 487             nodes.Sort( &wxGenericTreeModelNodeCmp );
 488             int len = nodes.GetCount();
 489             for (int i = 0; i < len; i ++)
 490             {
 491                 if ( nodes[i]->HasChildren() )
 492                     nodes[i]->Resort();
 493             }
 494         }
 495     }
 496
 497
 498 private:
 499     wxDataViewTreeNode  *m_parent;
 500
 501     // Corresponding model item.
 502     wxDataViewItem       m_item;
 503
 504     // Data specific to non-leaf (branch, inner) nodes. They are kept in a
 505     // separate struct in order to conserve memory.
 506     struct BranchNodeData
 507     {
 508         BranchNodeData()
 509             : open(false),
 510               subTreeCount(0)
 511         {
 512         }
 513
 514         // Child nodes. Note that this may be empty even if m_hasChildren in
 515         // case this branch of the tree wasn't expanded and realized yet.
 516         wxDataViewTreeNodes  children;
 517
 518         // Is the branch node currently open (expanded)?
 519         bool                 open;
 520
 521         // Total count of expanded (i.e. visible with the help of some
 522         // scrolling) items in the subtree, but excluding this node. I.e. it is
 523         // 0 for leaves and is the number of rows the subtree occupies for
 524         // branch nodes.
 525         int                  subTreeCount;
 526     };
 527
 528     BranchNodeData *m_branchData;
 529 };
 530
 531
 532 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 533                                            wxDataViewTreeNode ** node2)
 534 {
 535     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 536 }
 537
 538
 539 //-----------------------------------------------------------------------------
 540 // wxDataViewMainWindow
 541 //-----------------------------------------------------------------------------
 542
 543 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
 544
 545 class wxDataViewMainWindow: public wxWindow
 546 {
 547 public:
 548     wxDataViewMainWindow( wxDataViewCtrl *parent,
 549                             wxWindowID id,
 550                             const wxPoint &pos = wxDefaultPosition,
 551                             const wxSize &size = wxDefaultSize,
 552                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 553     virtual ~wxDataViewMainWindow();
 554
 555     bool IsList() const { return GetModel()->IsListModel(); }
 556     bool IsVirtualList() const { return m_root == NULL; }
 557
 558     // notifications from wxDataViewModel
 559     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 560     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 561     bool ItemChanged( const wxDataViewItem &item );
 562     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 563     bool Cleared();
 564     void Resort()
 565     {
 566         if (!IsVirtualList())
 567         {
 568             SortPrepare();
 569             m_root->Resort();
 570         }
 571         UpdateDisplay();
 572     }
 573
 574     void SortPrepare()
 575     {
 576         g_model = GetModel();
 577         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 578         if( !col )
 579         {
 580             if (g_model->HasDefaultCompare())
 581                 g_column = -1;
 582             else
 583                 g_column = -2;
 584
 585             g_asending = true;
 586             return;
 587         }
 588         g_column = col->GetModelColumn();
 589         g_asending = col->IsSortOrderAscending();
 590     }
 591
 592     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 593     wxDataViewCtrl *GetOwner() { return m_owner; }
 594     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 595
 596     wxDataViewModel* GetModel() { return GetOwner()->GetModel(); }
 597     const wxDataViewModel* GetModel() const { return GetOwner()->GetModel(); }
 598
 599 #if wxUSE_DRAG_AND_DROP
 600     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 601 #endif // wxUSE_DRAG_AND_DROP
 602     void OnPaint( wxPaintEvent &event );
 603     void OnCharHook( wxKeyEvent &event );
 604     void OnChar( wxKeyEvent &event );
 605     void OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event);
 606     void OnLeftKey();
 607     void OnRightKey();
 608     void OnMouse( wxMouseEvent &event );
 609     void OnSetFocus( wxFocusEvent &event );
 610     void OnKillFocus( wxFocusEvent &event );
 611
 612     void UpdateDisplay();
 613     void RecalculateDisplay();
 614     void OnInternalIdle();
 615
 616     void OnRenameTimer();
 617
 618     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 619     void ScrollTo( int rows, int column );
 620
 621     unsigned GetCurrentRow() const { return m_currentRow; }
 622     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 623     void ChangeCurrentRow( unsigned int row );
 624     bool TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward);
 625
 626     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 627     bool IsEmpty() { return GetRowCount() == 0; }
 628
 629     int GetCountPerPage() const;
 630     int GetEndOfLastCol() const;
 631     unsigned int GetFirstVisibleRow() const;
 632
 633     // I change this method to un const because in the tree view,
 634     // the displaying number of the tree are changing along with the
 635     // expanding/collapsing of the tree nodes
 636     unsigned int GetLastVisibleRow();
 637     unsigned int GetRowCount();
 638
 639     const wxDataViewSelection& GetSelections() const { return m_selection; }
 640     void SetSelections( const wxDataViewSelection & sel )
 641         { m_selection = sel; UpdateDisplay(); }
 642     void Select( const wxArrayInt& aSelections );
 643     void SelectAllRows( bool on );
 644     void SelectRow( unsigned int row, bool on );
 645     void SelectRows( unsigned int from, unsigned int to, bool on );
 646     void ReverseRowSelection( unsigned int row );
 647     bool IsRowSelected( unsigned int row );
 648     void SendSelectionChangedEvent( const wxDataViewItem& item);
 649
 650     void RefreshRow( unsigned int row );
 651     void RefreshRows( unsigned int from, unsigned int to );
 652     void RefreshRowsAfter( unsigned int firstRow );
 653
 654     // returns the colour to be used for drawing the rules
 655     wxColour GetRuleColour() const
 656     {
 657         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 658     }
 659
 660     wxRect GetLineRect( unsigned int row ) const;
 661
 662     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 663     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 664     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 665
 666     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 667     int GetRowHeight() const { return m_lineHeight; }
 668
 669     // Some useful functions for row and item mapping
 670     wxDataViewItem GetItemByRow( unsigned int row ) const;
 671     int GetRowByItem( const wxDataViewItem & item ) const;
 672
 673     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 674     // We did not need this temporarily
 675     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 676
 677     // Methods for building the mapping tree
 678     void BuildTree( wxDataViewModel  * model );
 679     void DestroyTree();
 680     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 681     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 682
 683     void Expand( unsigned int row );
 684     void Collapse( unsigned int row );
 685     bool IsExpanded( unsigned int row ) const;
 686     bool HasChildren( unsigned int row ) const;
 687
 688 #if wxUSE_DRAG_AND_DROP
 689     bool EnableDragSource( const wxDataFormat &format );
 690     bool EnableDropTarget( const wxDataFormat &format );
 691
 692     void RemoveDropHint();
 693     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 694     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 695     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 696     void OnLeave();
 697 #endif // wxUSE_DRAG_AND_DROP
 698
 699     void OnColumnsCountChanged();
 700
 701     // Called by wxDataViewCtrl and our own OnRenameTimer() to start edit the
 702     // specified item in the given column.
 703     void StartEditing(const wxDataViewItem& item, const wxDataViewColumn* col);
 704
 705 private:
 706     int RecalculateCount();
 707
 708     // Return false only if the event was vetoed by its handler.
 709     bool SendExpanderEvent(wxEventType type, const wxDataViewItem& item);
 710
 711     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 712
 713     wxDataViewColumn *FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode);
 714
 715     void DrawCellBackground( wxDataViewRenderer* cell, wxDC& dc, const wxRect& rect );
 716
 717 private:
 718     wxDataViewCtrl             *m_owner;
 719     int                         m_lineHeight;
 720     bool                        m_dirty;
 721
 722     wxDataViewColumn           *m_currentCol;
 723     unsigned int                m_currentRow;
 724     wxDataViewSelection         m_selection;
 725
 726     wxDataViewRenameTimer      *m_renameTimer;
 727     bool                        m_lastOnSame;
 728
 729     bool                        m_hasFocus;
 730     bool                        m_useCellFocus;
 731     bool                        m_currentColSetByKeyboard;
 732
 733 #if wxUSE_DRAG_AND_DROP
 734     int                         m_dragCount;
 735     wxPoint                     m_dragStart;
 736
 737     bool                        m_dragEnabled;
 738     wxDataFormat                m_dragFormat;
 739
 740     bool                        m_dropEnabled;
 741     wxDataFormat                m_dropFormat;
 742     bool                        m_dropHint;
 743     unsigned int                m_dropHintLine;
 744 #endif // wxUSE_DRAG_AND_DROP
 745
 746     // for double click logic
 747     unsigned int m_lineLastClicked,
 748         m_lineBeforeLastClicked,
 749         m_lineSelectSingleOnUp;
 750
 751     // the pen used to draw horiz/vertical rules
 752     wxPen m_penRule;
 753
 754     // the pen used to draw the expander and the lines
 755     wxPen m_penExpander;
 756
 757     // This is the tree structure of the model
 758     wxDataViewTreeNode * m_root;
 759     int m_count;
 760
 761     // This is the tree node under the cursor
 762     wxDataViewTreeNode * m_underMouse;
 763
 764     // The control used for editing or NULL.
 765     wxWeakRef<wxWindow> m_editorCtrl;
 766
 767     // Id m_editorCtrl is non-NULL, pointer to the associated renderer.
 768     wxDataViewRenderer* m_editorRenderer;
 769
 770 private:
 771     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 772     DECLARE_EVENT_TABLE()
 773 };
 774
 775 // ---------------------------------------------------------
 776 // wxGenericDataViewModelNotifier
 777 // ---------------------------------------------------------
 778
 779 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 780 {
 781 public:
 782     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 783         { m_mainWindow = mainWindow; }
 784
 785     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 786         { return m_mainWindow->ItemAdded( parent , item ); }
 787     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 788         { return m_mainWindow->ItemDeleted( parent, item ); }
 789     virtual bool ItemChanged( const wxDataViewItem & item )
 790         { return m_mainWindow->ItemChanged(item);  }
 791     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 792         { return m_mainWindow->ValueChanged( item, col ); }
 793     virtual bool Cleared()
 794         { return m_mainWindow->Cleared(); }
 795     virtual void Resort()
 796         { m_mainWindow->Resort(); }
 797
 798     wxDataViewMainWindow    *m_mainWindow;
 799 };
 800
 801 // ---------------------------------------------------------
 802 // wxDataViewRenderer
 803 // ---------------------------------------------------------
 804
 805 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 806
 807 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 808                                         wxDataViewCellMode mode,
 809                                         int align) :
 810     wxDataViewCustomRendererBase( varianttype, mode, align )
 811 {
 812     m_align = align;
 813     m_mode = mode;
 814     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 815     m_dc = NULL;
 816 }
 817
 818 wxDataViewRenderer::~wxDataViewRenderer()
 819 {
 820     delete m_dc;
 821 }
 822
 823 wxDC *wxDataViewRenderer::GetDC()
 824 {
 825     if (m_dc == NULL)
 826     {
 827         if (GetOwner() == NULL)
 828             return NULL;
 829         if (GetOwner()->GetOwner() == NULL)
 830             return NULL;
 831         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 832     }
 833
 834     return m_dc;
 835 }
 836
 837 void wxDataViewRenderer::SetAlignment( int align )
 838 {
 839     m_align=align;
 840 }
 841
 842 int wxDataViewRenderer::GetAlignment() const
 843 {
 844     return m_align;
 845 }
 846
 847 // ---------------------------------------------------------
 848 // wxDataViewCustomRenderer
 849 // ---------------------------------------------------------
 850
 851 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 852
 853 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 854                         wxDataViewCellMode mode, int align ) :
 855     wxDataViewRenderer( varianttype, mode, align )
 856 {
 857 }
 858
 859 // ---------------------------------------------------------
 860 // wxDataViewTextRenderer
 861 // ---------------------------------------------------------
 862
 863 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 864
 865 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 866                                                 wxDataViewCellMode mode, int align ) :
 867     wxDataViewRenderer( varianttype, mode, align )
 868 {
 869 }
 870
 871 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 872 {
 873     m_text = value.GetString();
 874
 875     return true;
 876 }
 877
 878 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 879 {
 880     return false;
 881 }
 882
 883 bool wxDataViewTextRenderer::HasEditorCtrl() const
 884 {
 885     return true;
 886 }
 887
 888 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 889         wxRect labelRect, const wxVariant &value )
 890 {
 891     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 892                                        wxPoint(labelRect.x,labelRect.y),
 893                                        wxSize(labelRect.width,labelRect.height),
 894                                        wxTE_PROCESS_ENTER );
 895
 896     // select the text in the control an place the cursor at the end
 897     ctrl->SetInsertionPointEnd();
 898     ctrl->SelectAll();
 899
 900     return ctrl;
 901 }
 902
 903 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 904 {
 905     wxTextCtrl *text = (wxTextCtrl*) editor;
 906     value = text->GetValue();
 907     return true;
 908 }
 909
 910 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 911 {
 912     RenderText(m_text, 0, rect, dc, state);
 913     return true;
 914 }
 915
 916 wxSize wxDataViewTextRenderer::GetSize() const
 917 {
 918     if (!m_text.empty())
 919         return GetTextExtent(m_text);
 920     else
 921         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 922 }
 923
 924 // ---------------------------------------------------------
 925 // wxDataViewBitmapRenderer
 926 // ---------------------------------------------------------
 927
 928 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 929
 930 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 931                                                     wxDataViewCellMode mode, int align ) :
 932     wxDataViewRenderer( varianttype, mode, align )
 933 {
 934 }
 935
 936 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 937 {
 938     if (value.GetType() == wxT("wxBitmap"))
 939         m_bitmap << value;
 940     if (value.GetType() == wxT("wxIcon"))
 941         m_icon << value;
 942
 943     return true;
 944 }
 945
 946 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 947 {
 948     return false;
 949 }
 950
 951 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 952 {
 953     if (m_bitmap.IsOk())
 954         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 955     else if (m_icon.IsOk())
 956         dc->DrawIcon( m_icon, cell.x, cell.y );
 957
 958     return true;
 959 }
 960
 961 wxSize wxDataViewBitmapRenderer::GetSize() const
 962 {
 963     if (m_bitmap.IsOk())
 964         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 965     else if (m_icon.IsOk())
 966         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 967
 968     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 969 }
 970
 971 // ---------------------------------------------------------
 972 // wxDataViewToggleRenderer
 973 // ---------------------------------------------------------
 974
 975 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 976
 977 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 978                         wxDataViewCellMode mode, int align ) :
 979     wxDataViewRenderer( varianttype, mode, align )
 980 {
 981     m_toggle = false;
 982 }
 983
 984 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 985 {
 986     m_toggle = value.GetBool();
 987
 988     return true;
 989 }
 990
 991 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 992 {
 993     return false;
 994 }
 995
 996 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 997 {
 998     int flags = 0;
 999     if (m_toggle)
1000         flags |= wxCONTROL_CHECKED;
1001     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
1002         GetEnabled() == false)
1003         flags |= wxCONTROL_DISABLED;
1004
1005     // check boxes we draw must always have the same, standard size (if it's
1006     // bigger than the cell size the checkbox will be truncated because the
1007     // caller had set the clipping rectangle to prevent us from drawing outside
1008     // the cell)
1009     cell.SetSize(GetSize());
1010
1011     wxRendererNative::Get().DrawCheckBox(
1012             GetOwner()->GetOwner(),
1013             *dc,
1014             cell,
1015             flags );
1016
1017     return true;
1018 }
1019
1020 bool wxDataViewToggleRenderer::WXActivateCell(const wxRect& WXUNUSED(cell),
1021                                               wxDataViewModel *model,
1022                                               const wxDataViewItem& item,
1023                                               unsigned int col,
1024                                               const wxMouseEvent *mouseEvent)
1025 {
1026     if ( !model->IsEnabled(item, col) )
1027         return false;
1028
1029     if ( mouseEvent )
1030     {
1031         // only react to clicks directly on the checkbox, not elsewhere in the same cell:
1032         if ( !wxRect(GetSize()).Contains(mouseEvent->GetPosition()) )
1033             return false;
1034     }
1035
1036     model->ChangeValue(!m_toggle, item, col);
1037     return true;
1038 }
1039
1040 wxSize wxDataViewToggleRenderer::GetSize() const
1041 {
1042     // the window parameter is not used by GetCheckBoxSize() so it's
1043     // safe to pass NULL
1044     return wxRendererNative::Get().GetCheckBoxSize(NULL);
1045 }
1046
1047 // ---------------------------------------------------------
1048 // wxDataViewProgressRenderer
1049 // ---------------------------------------------------------
1050
1051 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
1052
1053 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
1054     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1055     wxDataViewRenderer( varianttype, mode, align )
1056 {
1057     m_label = label;
1058     m_value = 0;
1059 }
1060
1061 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
1062 {
1063     m_value = (long) value;
1064
1065     if (m_value < 0) m_value = 0;
1066     if (m_value > 100) m_value = 100;
1067
1068     return true;
1069 }
1070
1071 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
1072 {
1073     value = (long) m_value;
1074     return true;
1075 }
1076
1077 bool
1078 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
1079 {
1080     // deflate the rect to leave a small border between bars in adjacent rows
1081     wxRect bar = rect.Deflate(0, 1);
1082
1083     dc->SetBrush( *wxTRANSPARENT_BRUSH );
1084     dc->SetPen( *wxBLACK_PEN );
1085     dc->DrawRectangle( bar );
1086
1087     bar.width = (int)(bar.width * m_value / 100.);
1088     dc->SetPen( *wxTRANSPARENT_PEN );
1089
1090     const wxDataViewItemAttr& attr = GetAttr();
1091     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
1092                                   : *wxBLUE_BRUSH );
1093     dc->DrawRectangle( bar );
1094
1095     return true;
1096 }
1097
1098 wxSize wxDataViewProgressRenderer::GetSize() const
1099 {
1100     return wxSize(40,12);
1101 }
1102
1103 // ---------------------------------------------------------
1104 // wxDataViewIconTextRenderer
1105 // ---------------------------------------------------------
1106
1107 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1108
1109 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1110 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1111     wxDataViewRenderer( varianttype, mode, align )
1112 {
1113     SetMode(mode);
1114     SetAlignment(align);
1115 }
1116
1117 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1118 {
1119     m_value << value;
1120     return true;
1121 }
1122
1123 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1124 {
1125     return false;
1126 }
1127
1128 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1129 {
1130     int xoffset = 0;
1131
1132     const wxIcon& icon = m_value.GetIcon();
1133     if ( icon.IsOk() )
1134     {
1135         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1136         xoffset = icon.GetWidth()+4;
1137     }
1138
1139     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1140
1141     return true;
1142 }
1143
1144 wxSize wxDataViewIconTextRenderer::GetSize() const
1145 {
1146     if (!m_value.GetText().empty())
1147     {
1148         wxSize size = GetTextExtent(m_value.GetText());
1149
1150         if (m_value.GetIcon().IsOk())
1151             size.x += m_value.GetIcon().GetWidth() + 4;
1152         return size;
1153     }
1154     return wxSize(80,20);
1155 }
1156
1157 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1158 {
1159     wxDataViewIconText iconText;
1160     iconText << value;
1161
1162     wxString text = iconText.GetText();
1163
1164     // adjust the label rect to take the width of the icon into account
1165     if (iconText.GetIcon().IsOk())
1166     {
1167         int w = iconText.GetIcon().GetWidth() + 4;
1168         labelRect.x += w;
1169         labelRect.width -= w;
1170     }
1171
1172     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1173                                        wxPoint(labelRect.x,labelRect.y),
1174                                        wxSize(labelRect.width,labelRect.height),
1175                                        wxTE_PROCESS_ENTER );
1176
1177     // select the text in the control an place the cursor at the end
1178     ctrl->SetInsertionPointEnd();
1179     ctrl->SelectAll();
1180
1181     return ctrl;
1182 }
1183
1184 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1185 {
1186     wxTextCtrl *text = (wxTextCtrl*) editor;
1187
1188     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1189     value << iconText;
1190     return true;
1191 }
1192
1193 //-----------------------------------------------------------------------------
1194 // wxDataViewDropTarget
1195 //-----------------------------------------------------------------------------
1196
1197 #if wxUSE_DRAG_AND_DROP
1198
1199 class wxBitmapCanvas: public wxWindow
1200 {
1201 public:
1202     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1203     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1204     {
1205         m_bitmap = bitmap;
1206         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1207     }
1208
1209     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1210     {
1211         wxPaintDC dc(this);
1212         dc.DrawBitmap( m_bitmap, 0, 0);
1213     }
1214
1215     wxBitmap m_bitmap;
1216 };
1217
1218 class wxDataViewDropSource: public wxDropSource
1219 {
1220 public:
1221     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1222         wxDropSource( win )
1223     {
1224         m_win = win;
1225         m_row = row;
1226         m_hint = NULL;
1227     }
1228
1229     ~wxDataViewDropSource()
1230     {
1231         delete m_hint;
1232     }
1233
1234     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1235     {
1236         wxPoint pos = wxGetMousePosition();
1237
1238         if (!m_hint)
1239         {
1240             int liney = m_win->GetLineStart( m_row );
1241             int linex = 0;
1242             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1243             m_win->ClientToScreen( &linex, &liney );
1244             m_dist_x = pos.x - linex;
1245             m_dist_y = pos.y - liney;
1246
1247             int indent = 0;
1248             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1249             m_dist_x -= indent;
1250             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1251                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1252                                         ib.GetSize(),
1253                                         wxFRAME_TOOL_WINDOW |
1254                                         wxFRAME_FLOAT_ON_PARENT |
1255                                         wxFRAME_NO_TASKBAR |
1256                                         wxNO_BORDER );
1257             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1258             m_hint->Show();
1259         }
1260         else
1261         {
1262             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1263             m_hint->SetTransparent( 128 );
1264         }
1265
1266         return false;
1267     }
1268
1269     wxDataViewMainWindow   *m_win;
1270     unsigned int            m_row;
1271     wxFrame                *m_hint;
1272     int m_dist_x,m_dist_y;
1273 };
1274
1275
1276 class wxDataViewDropTarget: public wxDropTarget
1277 {
1278 public:
1279     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1280         wxDropTarget( obj )
1281     {
1282         m_win = win;
1283     }
1284
1285     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1286     {
1287         wxDataFormat format = GetMatchingPair();
1288         if (format == wxDF_INVALID)
1289             return wxDragNone;
1290         return m_win->OnDragOver( format, x, y, def);
1291     }
1292
1293     virtual bool OnDrop( wxCoord x, wxCoord y )
1294     {
1295         wxDataFormat format = GetMatchingPair();
1296         if (format == wxDF_INVALID)
1297             return false;
1298         return m_win->OnDrop( format, x, y );
1299     }
1300
1301     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1302     {
1303         wxDataFormat format = GetMatchingPair();
1304         if (format == wxDF_INVALID)
1305             return wxDragNone;
1306         if (!GetData())
1307             return wxDragNone;
1308         return m_win->OnData( format, x, y, def );
1309     }
1310
1311     virtual void OnLeave()
1312         { m_win->OnLeave(); }
1313
1314     wxDataViewMainWindow   *m_win;
1315 };
1316
1317 #endif // wxUSE_DRAG_AND_DROP
1318
1319 //-----------------------------------------------------------------------------
1320 // wxDataViewRenameTimer
1321 //-----------------------------------------------------------------------------
1322
1323 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1324 {
1325     m_owner = owner;
1326 }
1327
1328 void wxDataViewRenameTimer::Notify()
1329 {
1330     m_owner->OnRenameTimer();
1331 }
1332
1333 //-----------------------------------------------------------------------------
1334 // wxDataViewMainWindow
1335 //-----------------------------------------------------------------------------
1336
1337 // The tree building helper, declared firstly
1338 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1339                              wxDataViewTreeNode * node);
1340
1341 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1342 {
1343     if (row1 > row2) return 1;
1344     if (row1 == row2) return 0;
1345     return -1;
1346 }
1347
1348 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1349
1350 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1351     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1352     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1353     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1354     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1355     EVT_CHAR_HOOK     (wxDataViewMainWindow::OnCharHook)
1356     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1357 END_EVENT_TABLE()
1358
1359 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1360     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1361     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1362     m_selection( wxDataViewSelectionCmp )
1363
1364 {
1365     SetOwner( parent );
1366
1367     m_editorRenderer = NULL;
1368
1369     m_lastOnSame = false;
1370     m_renameTimer = new wxDataViewRenameTimer( this );
1371
1372     // TODO: user better initial values/nothing selected
1373     m_currentCol = NULL;
1374     m_currentColSetByKeyboard = false;
1375     m_useCellFocus = false;
1376     m_currentRow = 0;
1377
1378     m_lineHeight = wxMax( 17, GetCharHeight() + 4 ); // 17 = mini icon height + 1
1379
1380 #if wxUSE_DRAG_AND_DROP
1381     m_dragCount = 0;
1382     m_dragStart = wxPoint(0,0);
1383
1384     m_dragEnabled = false;
1385     m_dropEnabled = false;
1386     m_dropHint = false;
1387     m_dropHintLine = (unsigned int) -1;
1388 #endif // wxUSE_DRAG_AND_DROP
1389
1390     m_lineLastClicked = (unsigned int) -1;
1391     m_lineBeforeLastClicked = (unsigned int) -1;
1392     m_lineSelectSingleOnUp = (unsigned int) -1;
1393
1394     m_hasFocus = false;
1395
1396     SetBackgroundColour( *wxWHITE );
1397
1398     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1399
1400     m_penRule = wxPen(GetRuleColour());
1401
1402     // compose a pen whichcan draw black lines
1403     // TODO: maybe there is something system colour to use
1404     m_penExpander = wxPen(wxColour(0,0,0));
1405
1406     m_root = wxDataViewTreeNode::CreateRootNode();
1407
1408     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1409     m_count = -1;
1410     m_underMouse = NULL;
1411     UpdateDisplay();
1412 }
1413
1414 wxDataViewMainWindow::~wxDataViewMainWindow()
1415 {
1416     DestroyTree();
1417     delete m_renameTimer;
1418 }
1419
1420
1421 #if wxUSE_DRAG_AND_DROP
1422 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1423 {
1424     m_dragFormat = format;
1425     m_dragEnabled = format != wxDF_INVALID;
1426
1427     return true;
1428 }
1429
1430 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1431 {
1432     m_dropFormat = format;
1433     m_dropEnabled = format != wxDF_INVALID;
1434
1435     if (m_dropEnabled)
1436         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1437
1438     return true;
1439 }
1440
1441 void wxDataViewMainWindow::RemoveDropHint()
1442 {
1443     if (m_dropHint)
1444     {
1445             m_dropHint = false;
1446             RefreshRow( m_dropHintLine );
1447             m_dropHintLine = (unsigned int) -1;
1448     }
1449 }
1450
1451 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1452                                                wxCoord y, wxDragResult def )
1453 {
1454     int xx = x;
1455     int yy = y;
1456     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1457     unsigned int row = GetLineAt( yy );
1458
1459     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1460     {
1461         RemoveDropHint();
1462         return wxDragNone;
1463     }
1464
1465     wxDataViewItem item = GetItemByRow( row );
1466
1467     wxDataViewModel *model = GetModel();
1468
1469     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1470     event.SetEventObject( m_owner );
1471     event.SetItem( item );
1472     event.SetModel( model );
1473     event.SetDataFormat( format );
1474     if (!m_owner->HandleWindowEvent( event ))
1475     {
1476         RemoveDropHint();
1477         return wxDragNone;
1478     }
1479
1480     if (!event.IsAllowed())
1481     {
1482         RemoveDropHint();
1483         return wxDragNone;
1484     }
1485
1486
1487     if (m_dropHint && (row != m_dropHintLine))
1488         RefreshRow( m_dropHintLine );
1489     m_dropHint = true;
1490     m_dropHintLine = row;
1491     RefreshRow( row );
1492
1493     return def;
1494 }
1495
1496 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1497 {
1498     RemoveDropHint();
1499
1500     int xx = x;
1501     int yy = y;
1502     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1503     unsigned int row = GetLineAt( yy );
1504
1505     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1506         return false;
1507
1508     wxDataViewItem item = GetItemByRow( row );
1509
1510     wxDataViewModel *model = GetModel();
1511
1512     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1513     event.SetEventObject( m_owner );
1514     event.SetItem( item );
1515     event.SetModel( model );
1516     event.SetDataFormat( format );
1517     if (!m_owner->HandleWindowEvent( event ))
1518         return false;
1519
1520     if (!event.IsAllowed())
1521         return false;
1522
1523     return true;
1524 }
1525
1526 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1527                                            wxDragResult def )
1528 {
1529     int xx = x;
1530     int yy = y;
1531     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1532     unsigned int row = GetLineAt( yy );
1533
1534     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1535         return wxDragNone;
1536
1537     wxDataViewItem item = GetItemByRow( row );
1538
1539     wxDataViewModel *model = GetModel();
1540
1541     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1542
1543     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1544     event.SetEventObject( m_owner );
1545     event.SetItem( item );
1546     event.SetModel( model );
1547     event.SetDataFormat( format );
1548     event.SetDataSize( obj->GetSize() );
1549     event.SetDataBuffer( obj->GetData() );
1550     if (!m_owner->HandleWindowEvent( event ))
1551         return wxDragNone;
1552
1553     if (!event.IsAllowed())
1554         return wxDragNone;
1555
1556     return def;
1557 }
1558
1559 void wxDataViewMainWindow::OnLeave()
1560 {
1561     RemoveDropHint();
1562 }
1563
1564 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1565 {
1566     int height = GetLineHeight( row );
1567     int width = 0;
1568     unsigned int cols = GetOwner()->GetColumnCount();
1569     unsigned int col;
1570     for (col = 0; col < cols; col++)
1571     {
1572         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1573         if (column->IsHidden())
1574             continue;      // skip it!
1575         width += column->GetWidth();
1576     }
1577
1578     indent = 0;
1579     if (!IsList())
1580     {
1581         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1582         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1583         indent = indent + m_lineHeight;
1584             // try to use the m_lineHeight as the expander space
1585     }
1586     width -= indent;
1587
1588     wxBitmap bitmap( width, height );
1589     wxMemoryDC dc( bitmap );
1590     dc.SetFont( GetFont() );
1591     dc.SetPen( *wxBLACK_PEN );
1592     dc.SetBrush( *wxWHITE_BRUSH );
1593     dc.DrawRectangle( 0,0,width,height );
1594
1595     wxDataViewModel *model = m_owner->GetModel();
1596
1597     wxDataViewColumn * const
1598         expander = GetExpanderColumnOrFirstOne(GetOwner());
1599
1600     int x = 0;
1601     for (col = 0; col < cols; col++)
1602     {
1603         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1604         wxDataViewRenderer *cell = column->GetRenderer();
1605
1606         if (column->IsHidden())
1607             continue;       // skip it!
1608
1609         width = column->GetWidth();
1610
1611         if (column == expander)
1612             width -= indent;
1613
1614         wxDataViewItem item = GetItemByRow( row );
1615         cell->PrepareForItem(model, item, column->GetModelColumn());
1616
1617         wxRect item_rect(x, 0, width, height);
1618         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1619
1620         // dc.SetClippingRegion( item_rect );
1621         cell->WXCallRender(item_rect, &dc, 0);
1622         // dc.DestroyClippingRegion();
1623
1624         x += width;
1625     }
1626
1627     return bitmap;
1628 }
1629
1630 #endif // wxUSE_DRAG_AND_DROP
1631
1632
1633 // Draw focus rect for individual cell. Unlike native focus rect, we render
1634 // this in foreground text color (typically white) to enhance contrast and
1635 // make it visible.
1636 static void DrawSelectedCellFocusRect(wxDC& dc, const wxRect& rect)
1637 {
1638     // (This code is based on wxRendererGeneric::DrawFocusRect and modified.)
1639
1640     // draw the pixels manually because the "dots" in wxPen with wxDOT style
1641     // may be short traits and not really dots
1642     //
1643     // note that to behave in the same manner as DrawRect(), we must exclude
1644     // the bottom and right borders from the rectangle
1645     wxCoord x1 = rect.GetLeft(),
1646             y1 = rect.GetTop(),
1647             x2 = rect.GetRight(),
1648             y2 = rect.GetBottom();
1649
1650     wxDCPenChanger pen(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
1651
1652     wxCoord z;
1653     for ( z = x1 + 1; z < x2; z += 2 )
1654         dc.DrawPoint(z, rect.GetTop());
1655
1656     wxCoord shift = z == x2 ? 0 : 1;
1657     for ( z = y1 + shift; z < y2; z += 2 )
1658         dc.DrawPoint(x2, z);
1659
1660     shift = z == y2 ? 0 : 1;
1661     for ( z = x2 - shift; z > x1; z -= 2 )
1662         dc.DrawPoint(z, y2);
1663
1664     shift = z == x1 ? 0 : 1;
1665     for ( z = y2 - shift; z > y1; z -= 2 )
1666         dc.DrawPoint(x1, z);
1667 }
1668
1669
1670 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1671 {
1672     wxDataViewModel *model = GetModel();
1673     wxAutoBufferedPaintDC dc( this );
1674
1675 #ifdef __WXMSW__
1676     dc.SetBrush(GetOwner()->GetBackgroundColour());
1677     dc.SetPen( *wxTRANSPARENT_PEN );
1678     dc.DrawRectangle(GetClientSize());
1679 #endif
1680
1681     if ( IsEmpty() )
1682     {
1683         // No items to draw.
1684         return;
1685     }
1686
1687     // prepare the DC
1688     GetOwner()->PrepareDC( dc );
1689     dc.SetFont( GetFont() );
1690
1691     wxRect update = GetUpdateRegion().GetBox();
1692     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1693
1694     // compute which items needs to be redrawn
1695     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1696     unsigned int item_count =
1697         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1698             (int)(GetRowCount( ) - item_start));
1699     unsigned int item_last = item_start + item_count;
1700
1701     // Send the event to wxDataViewCtrl itself.
1702     wxWindow * const parent = GetParent();
1703     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1704     cache_event.SetEventObject(parent);
1705     cache_event.SetCache(item_start, item_last - 1);
1706     parent->ProcessWindowEvent(cache_event);
1707
1708     // compute which columns needs to be redrawn
1709     unsigned int cols = GetOwner()->GetColumnCount();
1710     if ( !cols )
1711     {
1712         // we assume that we have at least one column below and painting an
1713         // empty control is unnecessary anyhow
1714         return;
1715     }
1716
1717     unsigned int col_start = 0;
1718     unsigned int x_start;
1719     for (x_start = 0; col_start < cols; col_start++)
1720     {
1721         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1722         if (col->IsHidden())
1723             continue;      // skip it!
1724
1725         unsigned int w = col->GetWidth();
1726         if (x_start+w >= (unsigned int)update.x)
1727             break;
1728
1729         x_start += w;
1730     }
1731
1732     unsigned int col_last = col_start;
1733     unsigned int x_last = x_start;
1734     for (; col_last < cols; col_last++)
1735     {
1736         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1737         if (col->IsHidden())
1738             continue;      // skip it!
1739
1740         if (x_last > (unsigned int)update.GetRight())
1741             break;
1742
1743         x_last += col->GetWidth();
1744     }
1745
1746     // Draw horizontal rules if required
1747     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1748     {
1749         dc.SetPen(m_penRule);
1750         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1751
1752         for (unsigned int i = item_start; i <= item_last; i++)
1753         {
1754             int y = GetLineStart( i );
1755             dc.DrawLine(x_start, y, x_last, y);
1756         }
1757     }
1758
1759     // Draw vertical rules if required
1760     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1761     {
1762         dc.SetPen(m_penRule);
1763         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1764
1765         // NB: Vertical rules are drawn in the last pixel of a column so that
1766         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1767         //     consistency with MSW native list control. There's no vertical
1768         //     rule at the most-left side of the control.
1769
1770         int x = x_start - 1;
1771         for (unsigned int i = col_start; i < col_last; i++)
1772         {
1773             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1774             if (col->IsHidden())
1775                 continue;       // skip it
1776
1777             x += col->GetWidth();
1778
1779             dc.DrawLine(x, GetLineStart( item_start ),
1780                         x, GetLineStart( item_last ) );
1781         }
1782     }
1783
1784     // redraw the background for the items which are selected/current
1785     for (unsigned int item = item_start; item < item_last; item++)
1786     {
1787         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1788
1789         if (selected || item == m_currentRow)
1790         {
1791             wxRect rect( x_start, GetLineStart( item ),
1792                          x_last - x_start, GetLineHeight( item ) );
1793
1794             // draw selection and whole-item focus:
1795             if ( selected )
1796             {
1797                 int flags = wxCONTROL_SELECTED;
1798                 if (m_hasFocus)
1799                     flags |= wxCONTROL_FOCUSED;
1800
1801                 wxRendererNative::Get().DrawItemSelectionRect
1802                                     (
1803                                         this,
1804                                         dc,
1805                                         rect,
1806                                         flags
1807                                     );
1808             }
1809
1810             // draw keyboard focus rect if applicable
1811             if ( item == m_currentRow && m_hasFocus )
1812             {
1813                 bool renderColumnFocus = false;
1814
1815                 if ( m_useCellFocus && m_currentCol && m_currentColSetByKeyboard )
1816                 {
1817                     renderColumnFocus = true;
1818
1819                     // If this is container node without columns, render full-row focus:
1820                     if ( !IsList() )
1821                     {
1822                         wxDataViewTreeNode *node = GetTreeNodeByRow(item);
1823                         if ( node->HasChildren() && !model->HasContainerColumns(node->GetItem()) )
1824                             renderColumnFocus = false;
1825                     }
1826                 }
1827
1828                 if ( renderColumnFocus )
1829                 {
1830                     for ( unsigned int i = col_start; i < col_last; i++ )
1831                     {
1832                         wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1833                         if ( col->IsHidden() )
1834                             continue;
1835
1836                         rect.width = col->GetWidth();
1837
1838                         if ( col == m_currentCol )
1839                         {
1840                             // make the rect more visible by adding a small
1841                             // margin around it:
1842                             rect.Deflate(1, 1);
1843
1844                             if ( selected )
1845                             {
1846                                 // DrawFocusRect() uses XOR and is all but
1847                                 // invisible against dark-blue background. Use
1848                                 // the same color used for selected text.
1849                                 DrawSelectedCellFocusRect(dc, rect);
1850                             }
1851                             else
1852                             {
1853                                 wxRendererNative::Get().DrawFocusRect
1854                                                     (
1855                                                         this,
1856                                                         dc,
1857                                                         rect,
1858                                                         0
1859                                                 );
1860                             }
1861                             break;
1862                         }
1863
1864                         rect.x += rect.width;
1865                     }
1866                 }
1867                 else
1868                 {
1869                     // render focus rectangle for the whole row
1870                     wxRendererNative::Get().DrawFocusRect
1871                                         (
1872                                             this,
1873                                             dc,
1874                                             rect,
1875                                             selected ? (int)wxCONTROL_SELECTED : 0
1876                                         );
1877                 }
1878             }
1879         }
1880     }
1881
1882 #if wxUSE_DRAG_AND_DROP
1883     if (m_dropHint)
1884     {
1885         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1886                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1887         dc.SetPen( *wxBLACK_PEN );
1888         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1889         dc.DrawRectangle( rect );
1890     }
1891 #endif // wxUSE_DRAG_AND_DROP
1892
1893     wxDataViewColumn * const
1894         expander = GetExpanderColumnOrFirstOne(GetOwner());
1895
1896     // redraw all cells for all rows which must be repainted and all columns
1897     wxRect cell_rect;
1898     cell_rect.x = x_start;
1899     for (unsigned int i = col_start; i < col_last; i++)
1900     {
1901         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1902         wxDataViewRenderer *cell = col->GetRenderer();
1903         cell_rect.width = col->GetWidth();
1904
1905         if ( col->IsHidden() || cell_rect.width <= 0 )
1906             continue;       // skip it!
1907
1908         for (unsigned int item = item_start; item < item_last; item++)
1909         {
1910             // get the cell value and set it into the renderer
1911             wxDataViewTreeNode *node = NULL;
1912             wxDataViewItem dataitem;
1913
1914             if (!IsVirtualList())
1915             {
1916                 node = GetTreeNodeByRow(item);
1917                 if( node == NULL )
1918                     continue;
1919
1920                 dataitem = node->GetItem();
1921
1922                 // Skip all columns of "container" rows except the expander
1923                 // column itself unless HasContainerColumns() overrides this.
1924                 if ( col != expander &&
1925                         model->IsContainer(dataitem) &&
1926                             !model->HasContainerColumns(dataitem) )
1927                     continue;
1928             }
1929             else
1930             {
1931                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1932             }
1933
1934             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1935
1936             // update cell_rect
1937             cell_rect.y = GetLineStart( item );
1938             cell_rect.height = GetLineHeight( item );
1939
1940             // draw the background
1941             bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1942             if ( !selected )
1943                 DrawCellBackground( cell, dc, cell_rect );
1944
1945             // deal with the expander
1946             int indent = 0;
1947             if ((!IsList()) && (col == expander))
1948             {
1949                 // Calculate the indent first
1950                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1951
1952                 // we reserve m_lineHeight of horizontal space for the expander
1953                 // but leave EXPANDER_MARGIN around the expander itself
1954                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1955
1956                 indent += m_lineHeight;
1957
1958                 // draw expander if needed and visible
1959                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1960                 {
1961                     dc.SetPen( m_penExpander );
1962                     dc.SetBrush( wxNullBrush );
1963
1964                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1965                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1966                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1967
1968                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1969
1970                     int flag = 0;
1971                     if ( m_underMouse == node )
1972                         flag |= wxCONTROL_CURRENT;
1973                     if ( node->IsOpen() )
1974                         flag |= wxCONTROL_EXPANDED;
1975
1976                     // ensure that we don't overflow the cell (which might
1977                     // happen if the column is very narrow)
1978                     wxDCClipper clip(dc, cell_rect);
1979
1980                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1981                 }
1982
1983                 // force the expander column to left-center align
1984                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1985             }
1986
1987             wxRect item_rect = cell_rect;
1988             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1989
1990             // account for the tree indent (harmless if we're not indented)
1991             item_rect.x += indent;
1992             item_rect.width -= indent;
1993
1994             if ( item_rect.width <= 0 )
1995                 continue;
1996
1997             int state = 0;
1998             if (m_hasFocus && selected)
1999                 state |= wxDATAVIEW_CELL_SELECTED;
2000
2001             // TODO: it would be much more efficient to create a clipping
2002             //       region for the entire column being rendered (in the OnPaint
2003             //       of wxDataViewMainWindow) instead of a single clip region for
2004             //       each cell. However it would mean that each renderer should
2005             //       respect the given wxRect's top & bottom coords, eventually
2006             //       violating only the left & right coords - however the user can
2007             //       make its own renderer and thus we cannot be sure of that.
2008             wxDCClipper clip(dc, item_rect);
2009
2010             cell->WXCallRender(item_rect, &dc, state);
2011         }
2012
2013         cell_rect.x += cell_rect.width;
2014     }
2015 }
2016
2017
2018 void wxDataViewMainWindow::DrawCellBackground( wxDataViewRenderer* cell, wxDC& dc, const wxRect& rect )
2019 {
2020     wxRect rectBg( rect );
2021
2022     // don't overlap the horizontal rules
2023     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
2024     {
2025         rectBg.x++;
2026         rectBg.width--;
2027     }
2028
2029     // don't overlap the vertical rules
2030     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
2031     {
2032         rectBg.y++;
2033         rectBg.height--;
2034     }
2035
2036     cell->RenderBackground(&dc, rectBg);
2037 }
2038
2039 void wxDataViewMainWindow::OnRenameTimer()
2040 {
2041     // We have to call this here because changes may just have
2042     // been made and no screen update taken place.
2043     if ( m_dirty )
2044     {
2045         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
2046         //       (needs to be tested!)
2047         wxSafeYield();
2048     }
2049
2050     wxDataViewItem item = GetItemByRow( m_currentRow );
2051
2052     StartEditing( item, m_currentCol );
2053 }
2054
2055 void
2056 wxDataViewMainWindow::StartEditing(const wxDataViewItem& item,
2057                                    const wxDataViewColumn* col)
2058 {
2059     wxDataViewRenderer* renderer = col->GetRenderer();
2060     if (renderer->GetMode() != wxDATAVIEW_CELL_EDITABLE)
2061         return;
2062
2063     const wxRect itemRect = GetItemRect(item, col);
2064     if ( renderer->StartEditing(item, itemRect) )
2065     {
2066         // Save the renderer to be able to finish/cancel editing it later and
2067         // save the control to be able to detect if we're still editing it.
2068         m_editorRenderer = renderer;
2069         m_editorCtrl = renderer->GetEditorCtrl();
2070     }
2071 }
2072
2073 //-----------------------------------------------------------------------------
2074 // Helper class for do operation on the tree node
2075 //-----------------------------------------------------------------------------
2076 class DoJob
2077 {
2078 public:
2079     DoJob() { }
2080     virtual ~DoJob() { }
2081
2082     // The return value control how the tree-walker tranverse the tree
2083     enum
2084     {
2085         DONE,          // Job done, stop traversing and return
2086         SKIP_SUBTREE,  // Ignore the current node's subtree and continue
2087         CONTINUE       // Job not done, continue
2088     };
2089
2090     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
2091 };
2092
2093 bool Walker( wxDataViewTreeNode * node, DoJob & func )
2094 {
2095     wxCHECK_MSG( node, false, "can't walk NULL node" );
2096
2097     switch( func( node ) )
2098     {
2099         case DoJob::DONE:
2100             return true;
2101         case DoJob::SKIP_SUBTREE:
2102             return false;
2103         case DoJob::CONTINUE:
2104             break;
2105     }
2106
2107     if ( node->HasChildren() )
2108     {
2109         const wxDataViewTreeNodes& nodes = node->GetChildNodes();
2110
2111         for ( wxDataViewTreeNodes::const_iterator i = nodes.begin();
2112               i != nodes.end();
2113               ++i )
2114         {
2115             if ( Walker(*i, func) )
2116                 return true;
2117         }
2118     }
2119
2120     return false;
2121 }
2122
2123 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
2124 {
2125     if (IsVirtualList())
2126     {
2127         wxDataViewVirtualListModel *list_model =
2128             (wxDataViewVirtualListModel*) GetModel();
2129         m_count = list_model->GetCount();
2130     }
2131     else
2132     {
2133         SortPrepare();
2134
2135         wxDataViewTreeNode *parentNode = FindNode(parent);
2136
2137         if ( !parentNode )
2138             return false;
2139
2140         wxDataViewItemArray modelSiblings;
2141         GetModel()->GetChildren(parent, modelSiblings);
2142         const int modelSiblingsSize = modelSiblings.size();
2143
2144         int posInModel = modelSiblings.Index(item, /*fromEnd=*/true);
2145         wxCHECK_MSG( posInModel != wxNOT_FOUND, false, "adding non-existent item?" );
2146
2147         wxDataViewTreeNode *itemNode = new wxDataViewTreeNode(parentNode, item);
2148         itemNode->SetHasChildren(GetModel()->IsContainer(item));
2149
2150         parentNode->SetHasChildren(true);
2151
2152         const wxDataViewTreeNodes& nodeSiblings = parentNode->GetChildNodes();
2153         const int nodeSiblingsSize = nodeSiblings.size();
2154
2155         int nodePos = 0;
2156
2157         if ( posInModel == modelSiblingsSize - 1 )
2158         {
2159             nodePos = nodeSiblingsSize;
2160         }
2161         else if ( modelSiblingsSize == nodeSiblingsSize + 1 )
2162         {
2163             // This is the simple case when our node tree already matches the
2164             // model and only this one item is missing.
2165             nodePos = posInModel;
2166         }
2167         else
2168         {
2169             // It's possible that a larger discrepancy between the model and
2170             // our realization exists. This can happen e.g. when adding a bunch
2171             // of items to the model and then calling ItemsAdded() just once
2172             // afterwards. In this case, we must find the right position by
2173             // looking at sibling items.
2174
2175             // append to the end if we won't find a better position:
2176             nodePos = nodeSiblingsSize;
2177
2178             for ( int nextItemPos = posInModel + 1;
2179                   nextItemPos < modelSiblingsSize;
2180                   nextItemPos++ )
2181             {
2182                 int nextNodePos = parentNode->FindChildByItem(modelSiblings[nextItemPos]);
2183                 if ( nextNodePos != wxNOT_FOUND )
2184                 {
2185                     nodePos = nextNodePos;
2186                     break;
2187                 }
2188             }
2189         }
2190
2191         parentNode->ChangeSubTreeCount(+1);
2192         parentNode->InsertChild(itemNode, nodePos);
2193
2194         m_count = -1;
2195     }
2196
2197     GetOwner()->InvalidateColBestWidths();
2198     UpdateDisplay();
2199
2200     return true;
2201 }
2202
2203 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2204                                        const wxDataViewItem& item)
2205 {
2206     if (IsVirtualList())
2207     {
2208         wxDataViewVirtualListModel *list_model =
2209             (wxDataViewVirtualListModel*) GetModel();
2210         m_count = list_model->GetCount();
2211
2212         if ( !m_selection.empty() )
2213         {
2214             const int row = GetRowByItem(item);
2215
2216             int rowIndexInSelection = wxNOT_FOUND;
2217
2218             const size_t selCount = m_selection.size();
2219             for ( size_t i = 0; i < selCount; i++ )
2220             {
2221                 if ( m_selection[i] == (unsigned)row )
2222                     rowIndexInSelection = i;
2223                 else if ( m_selection[i] > (unsigned)row )
2224                     m_selection[i]--;
2225             }
2226
2227             if ( rowIndexInSelection != wxNOT_FOUND )
2228                 m_selection.RemoveAt(rowIndexInSelection);
2229         }
2230
2231     }
2232     else // general case
2233     {
2234         wxDataViewTreeNode *parentNode = FindNode(parent);
2235
2236         // Notice that it is possible that the item being deleted is not in the
2237         // tree at all, for example we could be deleting a never shown (because
2238         // collapsed) item in a tree model. So it's not an error if we don't know
2239         // about this item, just return without doing anything then.
2240         if ( !parentNode )
2241             return true;
2242
2243         wxCHECK_MSG( parentNode->HasChildren(), false, "parent node doesn't have children?" );
2244         const wxDataViewTreeNodes& parentsChildren = parentNode->GetChildNodes();
2245
2246         // We can't use FindNode() to find 'item', because it was already
2247         // removed from the model by the time ItemDeleted() is called, so we
2248         // have to do it manually. We keep track of its position as well for
2249         // later use.
2250         int itemPosInNode = 0;
2251         wxDataViewTreeNode *itemNode = NULL;
2252         for ( wxDataViewTreeNodes::const_iterator i = parentsChildren.begin();
2253               i != parentsChildren.end();
2254               ++i, ++itemPosInNode )
2255         {
2256             if( (*i)->GetItem() == item )
2257             {
2258                 itemNode = *i;
2259                 break;
2260             }
2261         }
2262
2263         // If the parent wasn't expanded, it's possible that we didn't have a
2264         // node corresponding to 'item' and so there's nothing left to do.
2265         if ( !itemNode )
2266         {
2267             // If this was the last child to be removed, it's possible the parent
2268             // node became a leaf. Let's ask the model about it.
2269             if ( parentNode->GetChildNodes().empty() )
2270                 parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2271
2272             return true;
2273         }
2274
2275         // Delete the item from wxDataViewTreeNode representation:
2276         const int itemsDeleted = 1 + itemNode->GetSubTreeCount();
2277
2278         parentNode->RemoveChild(itemNode);
2279         delete itemNode;
2280         parentNode->ChangeSubTreeCount(-itemsDeleted);
2281
2282         // Make the row number invalid and get a new valid one when user call GetRowCount
2283         m_count = -1;
2284
2285         // If this was the last child to be removed, it's possible the parent
2286         // node became a leaf. Let's ask the model about it.
2287         if ( parentNode->GetChildNodes().empty() )
2288             parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2289
2290         // Update selection by removing 'item' and its entire children tree from the selection.
2291         if ( !m_selection.empty() )
2292         {
2293             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2294             // the parent ('parentNode') and position in its list of children
2295             int itemRow;
2296             if ( itemPosInNode == 0 )
2297             {
2298                 // 1st child, row number is that of the parent parentNode + 1
2299                 itemRow = GetRowByItem(parentNode->GetItem()) + 1;
2300             }
2301             else
2302             {
2303                 // row number is that of the sibling above 'item' + its subtree if any + 1
2304                 const wxDataViewTreeNode *siblingNode = parentNode->GetChildNodes()[itemPosInNode - 1];
2305
2306                 itemRow = GetRowByItem(siblingNode->GetItem()) +
2307                           siblingNode->GetSubTreeCount() +
2308                           1;
2309             }
2310
2311             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2312
2313             const size_t numSelections = m_selection.size();
2314             for ( size_t i = 0; i < numSelections; ++i )
2315             {
2316                 const int s = m_selection[i];
2317                 if ( s < itemRow )
2318                     newsel.push_back(s);
2319                 else if ( s >= itemRow + itemsDeleted )
2320                     newsel.push_back(s - itemsDeleted);
2321                 // else: deleted item, remove from selection
2322             }
2323
2324             m_selection = newsel;
2325         }
2326     }
2327
2328     // Change the current row to the last row if the current exceed the max row number
2329     if( m_currentRow > GetRowCount() )
2330         ChangeCurrentRow(m_count - 1);
2331
2332     GetOwner()->InvalidateColBestWidths();
2333     UpdateDisplay();
2334
2335     return true;
2336 }
2337
2338 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2339 {
2340     SortPrepare();
2341     g_model->Resort();
2342
2343     GetOwner()->InvalidateColBestWidths();
2344
2345     // Send event
2346     wxWindow *parent = GetParent();
2347     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2348     le.SetEventObject(parent);
2349     le.SetModel(GetModel());
2350     le.SetItem(item);
2351     parent->ProcessWindowEvent(le);
2352
2353     return true;
2354 }
2355
2356 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2357 {
2358     int view_column = -1;
2359     unsigned int n_col = m_owner->GetColumnCount();
2360     for (unsigned i = 0; i < n_col; i++)
2361     {
2362         wxDataViewColumn *column = m_owner->GetColumn( i );
2363         if (column->GetModelColumn() == model_column)
2364         {
2365             view_column = (int) i;
2366             break;
2367         }
2368     }
2369     if (view_column == -1)
2370         return false;
2371
2372     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2373 /*#define MAX_VIRTUAL_WIDTH       100000
2374
2375     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2376     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2377     Refresh( true, &rect );
2378
2379     return true;
2380 */
2381     SortPrepare();
2382     g_model->Resort();
2383
2384     GetOwner()->InvalidateColBestWidth(view_column);
2385
2386     // Send event
2387     wxWindow *parent = GetParent();
2388     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2389     le.SetEventObject(parent);
2390     le.SetModel(GetModel());
2391     le.SetItem(item);
2392     le.SetColumn(view_column);
2393     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2394     parent->ProcessWindowEvent(le);
2395
2396     return true;
2397 }
2398
2399 bool wxDataViewMainWindow::Cleared()
2400 {
2401     DestroyTree();
2402     m_selection.Clear();
2403
2404     SortPrepare();
2405     BuildTree( GetModel() );
2406
2407     GetOwner()->InvalidateColBestWidths();
2408     UpdateDisplay();
2409
2410     return true;
2411 }
2412
2413 void wxDataViewMainWindow::UpdateDisplay()
2414 {
2415     m_dirty = true;
2416     m_underMouse = NULL;
2417 }
2418
2419 void wxDataViewMainWindow::OnInternalIdle()
2420 {
2421     wxWindow::OnInternalIdle();
2422
2423     if (m_dirty)
2424     {
2425         RecalculateDisplay();
2426         m_dirty = false;
2427     }
2428 }
2429
2430 void wxDataViewMainWindow::RecalculateDisplay()
2431 {
2432     wxDataViewModel *model = GetModel();
2433     if (!model)
2434     {
2435         Refresh();
2436         return;
2437     }
2438
2439     int width = GetEndOfLastCol();
2440     int height = GetLineStart( GetRowCount() );
2441
2442     SetVirtualSize( width, height );
2443     GetOwner()->SetScrollRate( 10, m_lineHeight );
2444
2445     Refresh();
2446 }
2447
2448 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2449 {
2450     m_underMouse = NULL;
2451
2452     wxWindow::ScrollWindow( dx, dy, rect );
2453
2454     if (GetOwner()->m_headerArea)
2455         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2456 }
2457
2458 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2459 {
2460     m_underMouse = NULL;
2461
2462     int x, y;
2463     m_owner->GetScrollPixelsPerUnit( &x, &y );
2464     int sy = GetLineStart( rows )/y;
2465     int sx = -1;
2466     if( column != -1 )
2467     {
2468         wxRect rect = GetClientRect();
2469         int colnum = 0;
2470         int x_start, w = 0;
2471         int xx, yy, xe;
2472         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2473         for (x_start = 0; colnum < column; colnum++)
2474         {
2475             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2476             if (col->IsHidden())
2477                 continue;      // skip it!
2478
2479             w = col->GetWidth();
2480             x_start += w;
2481         }
2482
2483         int x_end = x_start + w;
2484         xe = xx + rect.width;
2485         if( x_end > xe )
2486         {
2487             sx = ( xx + x_end - xe )/x;
2488         }
2489         if( x_start < xx )
2490         {
2491             sx = x_start/x;
2492         }
2493     }
2494     m_owner->Scroll( sx, sy );
2495 }
2496
2497 int wxDataViewMainWindow::GetCountPerPage() const
2498 {
2499     wxSize size = GetClientSize();
2500     return size.y / m_lineHeight;
2501 }
2502
2503 int wxDataViewMainWindow::GetEndOfLastCol() const
2504 {
2505     int width = 0;
2506     unsigned int i;
2507     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2508     {
2509         const wxDataViewColumn *c =
2510             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2511
2512         if (!c->IsHidden())
2513             width += c->GetWidth();
2514     }
2515     return width;
2516 }
2517
2518 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2519 {
2520     int x = 0;
2521     int y = 0;
2522     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2523
2524     return GetLineAt( y );
2525 }
2526
2527 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2528 {
2529     wxSize client_size = GetClientSize();
2530     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2531                                     &client_size.x, &client_size.y );
2532
2533     // we should deal with the pixel here
2534     unsigned int row = GetLineAt(client_size.y) - 1;
2535
2536     return wxMin( GetRowCount()-1, row );
2537 }
2538
2539 unsigned int wxDataViewMainWindow::GetRowCount()
2540 {
2541     if ( m_count == -1 )
2542     {
2543         m_count = RecalculateCount();
2544         UpdateDisplay();
2545     }
2546     return m_count;
2547 }
2548
2549 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2550 {
2551     m_currentRow = row;
2552
2553     // send event
2554 }
2555
2556 void wxDataViewMainWindow::SelectAllRows( bool on )
2557 {
2558     if (IsEmpty())
2559         return;
2560
2561     if (on)
2562     {
2563         m_selection.Clear();
2564         for (unsigned int i = 0; i < GetRowCount(); i++)
2565             m_selection.Add( i );
2566         Refresh();
2567     }
2568     else
2569     {
2570         unsigned int first_visible = GetFirstVisibleRow();
2571         unsigned int last_visible = GetLastVisibleRow();
2572         unsigned int i;
2573         for (i = 0; i < m_selection.GetCount(); i++)
2574         {
2575             unsigned int row = m_selection[i];
2576             if ((row >= first_visible) && (row <= last_visible))
2577                 RefreshRow( row );
2578         }
2579         m_selection.Clear();
2580     }
2581 }
2582
2583 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2584 {
2585     if (m_selection.Index( row ) == wxNOT_FOUND)
2586     {
2587         if (on)
2588         {
2589             m_selection.Add( row );
2590             RefreshRow( row );
2591         }
2592     }
2593     else
2594     {
2595         if (!on)
2596         {
2597             m_selection.Remove( row );
2598             RefreshRow( row );
2599         }
2600     }
2601 }
2602
2603 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2604 {
2605     if (from > to)
2606     {
2607         unsigned int tmp = from;
2608         from = to;
2609         to = tmp;
2610     }
2611
2612     unsigned int i;
2613     for (i = from; i <= to; i++)
2614     {
2615         if (m_selection.Index( i ) == wxNOT_FOUND)
2616         {
2617             if (on)
2618                 m_selection.Add( i );
2619         }
2620         else
2621         {
2622             if (!on)
2623                 m_selection.Remove( i );
2624         }
2625     }
2626     RefreshRows( from, to );
2627 }
2628
2629 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2630 {
2631     for (size_t i=0; i < aSelections.GetCount(); i++)
2632     {
2633         int n = aSelections[i];
2634
2635         m_selection.Add( n );
2636         RefreshRow( n );
2637     }
2638 }
2639
2640 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2641 {
2642     if (m_selection.Index( row ) == wxNOT_FOUND)
2643         m_selection.Add( row );
2644     else
2645         m_selection.Remove( row );
2646     RefreshRow( row );
2647 }
2648
2649 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2650 {
2651     return (m_selection.Index( row ) != wxNOT_FOUND);
2652 }
2653
2654 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2655 {
2656     wxWindow *parent = GetParent();
2657     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2658
2659     le.SetEventObject(parent);
2660     le.SetModel(GetModel());
2661     le.SetItem( item );
2662
2663     parent->ProcessWindowEvent(le);
2664 }
2665
2666 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2667 {
2668     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2669     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2670
2671     wxSize client_size = GetClientSize();
2672     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2673     wxRect intersect_rect = client_rect.Intersect( rect );
2674     if (intersect_rect.width > 0)
2675         Refresh( true, &intersect_rect );
2676 }
2677
2678 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2679 {
2680     if (from > to)
2681     {
2682         unsigned int tmp = to;
2683         to = from;
2684         from = tmp;
2685     }
2686
2687     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2688     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2689
2690     wxSize client_size = GetClientSize();
2691     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2692     wxRect intersect_rect = client_rect.Intersect( rect );
2693     if (intersect_rect.width > 0)
2694         Refresh( true, &intersect_rect );
2695 }
2696
2697 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2698 {
2699     wxSize client_size = GetClientSize();
2700     int start = GetLineStart( firstRow );
2701     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2702     if (start > client_size.y) return;
2703
2704     wxRect rect( 0, start, client_size.x, client_size.y - start );
2705
2706     Refresh( true, &rect );
2707 }
2708
2709 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2710 {
2711     wxRect rect;
2712     rect.x = 0;
2713     rect.y = GetLineStart( row );
2714     rect.width = GetEndOfLastCol();
2715     rect.height = GetLineHeight( row );
2716
2717     return rect;
2718 }
2719
2720 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2721 {
2722     const wxDataViewModel *model = GetModel();
2723
2724     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2725     {
2726         // TODO make more efficient
2727
2728         int start = 0;
2729
2730         unsigned int r;
2731         for (r = 0; r < row; r++)
2732         {
2733             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2734             if (!node) return start;
2735
2736             wxDataViewItem item = node->GetItem();
2737
2738             unsigned int cols = GetOwner()->GetColumnCount();
2739             unsigned int col;
2740             int height = m_lineHeight;
2741             for (col = 0; col < cols; col++)
2742             {
2743                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2744                 if (column->IsHidden())
2745                     continue;      // skip it!
2746
2747                 if ((col != 0) &&
2748                     model->IsContainer(item) &&
2749                     !model->HasContainerColumns(item))
2750                     continue;      // skip it!
2751
2752                 wxDataViewRenderer *renderer =
2753                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2754                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2755
2756                 height = wxMax( height, renderer->GetSize().y );
2757             }
2758
2759             start += height;
2760         }
2761
2762         return start;
2763     }
2764     else
2765     {
2766         return row * m_lineHeight;
2767     }
2768 }
2769
2770 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2771 {
2772     const wxDataViewModel *model = GetModel();
2773
2774     // check for the easy case first
2775     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2776         return y / m_lineHeight;
2777
2778     // TODO make more efficient
2779     unsigned int row = 0;
2780     unsigned int yy = 0;
2781     for (;;)
2782     {
2783         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2784         if (!node)
2785         {
2786             // not really correct...
2787             return row + ((y-yy) / m_lineHeight);
2788         }
2789
2790         wxDataViewItem item = node->GetItem();
2791
2792         unsigned int cols = GetOwner()->GetColumnCount();
2793         unsigned int col;
2794         int height = m_lineHeight;
2795         for (col = 0; col < cols; col++)
2796         {
2797             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2798             if (column->IsHidden())
2799                 continue;      // skip it!
2800
2801             if ((col != 0) &&
2802                 model->IsContainer(item) &&
2803                 !model->HasContainerColumns(item))
2804                 continue;      // skip it!
2805
2806             wxDataViewRenderer *renderer =
2807                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2808             renderer->PrepareForItem(model, item, column->GetModelColumn());
2809
2810             height = wxMax( height, renderer->GetSize().y );
2811         }
2812
2813         yy += height;
2814         if (y < yy)
2815             return row;
2816
2817         row++;
2818     }
2819 }
2820
2821 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2822 {
2823     const wxDataViewModel *model = GetModel();
2824
2825     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2826     {
2827         wxASSERT( !IsVirtualList() );
2828
2829         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2830         // wxASSERT( node );
2831         if (!node) return m_lineHeight;
2832
2833         wxDataViewItem item = node->GetItem();
2834
2835         int height = m_lineHeight;
2836
2837         unsigned int cols = GetOwner()->GetColumnCount();
2838         unsigned int col;
2839         for (col = 0; col < cols; col++)
2840         {
2841             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2842             if (column->IsHidden())
2843                 continue;      // skip it!
2844
2845             if ((col != 0) &&
2846                 model->IsContainer(item) &&
2847                 !model->HasContainerColumns(item))
2848                 continue;      // skip it!
2849
2850             wxDataViewRenderer *renderer =
2851                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2852             renderer->PrepareForItem(model, item, column->GetModelColumn());
2853
2854             height = wxMax( height, renderer->GetSize().y );
2855         }
2856
2857         return height;
2858     }
2859     else
2860     {
2861         return m_lineHeight;
2862     }
2863 }
2864
2865
2866 class RowToTreeNodeJob: public DoJob
2867 {
2868 public:
2869     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2870     {
2871         this->row = row;
2872         this->current = current;
2873         ret = NULL;
2874         parent = node;
2875     }
2876
2877     virtual int operator() ( wxDataViewTreeNode * node )
2878     {
2879         current ++;
2880         if( current == static_cast<int>(row))
2881         {
2882             ret = node;
2883             return DoJob::DONE;
2884         }
2885
2886         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2887         {
2888             current += node->GetSubTreeCount();
2889             return  DoJob::SKIP_SUBTREE;
2890         }
2891         else
2892         {
2893             parent = node;
2894
2895             // If the current node has only leaf children, we can find the
2896             // desired node directly. This can speed up finding the node
2897             // in some cases, and will have a very good effect for list views.
2898             if ( node->HasChildren() &&
2899                  (int)node->GetChildNodes().size() == node->GetSubTreeCount() )
2900             {
2901                 const int index = static_cast<int>(row) - current - 1;
2902                 ret = node->GetChildNodes()[index];
2903                 return DoJob::DONE;
2904             }
2905
2906             return DoJob::CONTINUE;
2907         }
2908     }
2909
2910     wxDataViewTreeNode * GetResult() const
2911         { return ret; }
2912
2913 private:
2914     unsigned int row;
2915     int current;
2916     wxDataViewTreeNode * ret;
2917     wxDataViewTreeNode * parent;
2918 };
2919
2920 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2921 {
2922     wxASSERT( !IsVirtualList() );
2923
2924     RowToTreeNodeJob job( row , -2, m_root );
2925     Walker( m_root , job );
2926     return job.GetResult();
2927 }
2928
2929 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2930 {
2931     if (IsVirtualList())
2932     {
2933         return wxDataViewItem( wxUIntToPtr(row+1) );
2934     }
2935     else
2936     {
2937         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2938         return node ? node->GetItem() : wxDataViewItem();
2939     }
2940 }
2941
2942 bool
2943 wxDataViewMainWindow::SendExpanderEvent(wxEventType type,
2944                                         const wxDataViewItem& item)
2945 {
2946     wxWindow *parent = GetParent();
2947     wxDataViewEvent le(type, parent->GetId());
2948
2949     le.SetEventObject(parent);
2950     le.SetModel(GetModel());
2951     le.SetItem( item );
2952
2953     return !parent->ProcessWindowEvent(le) || le.IsAllowed();
2954 }
2955
2956 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2957 {
2958     if (IsList())
2959         return false;
2960
2961     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2962     if (!node)
2963         return false;
2964
2965     if (!node->HasChildren())
2966         return false;
2967
2968     return node->IsOpen();
2969 }
2970
2971 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2972 {
2973     if (IsList())
2974         return false;
2975
2976     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2977     if (!node)
2978         return false;
2979
2980     if (!node->HasChildren())
2981         return false;
2982
2983     return true;
2984 }
2985
2986 void wxDataViewMainWindow::Expand( unsigned int row )
2987 {
2988     if (IsList())
2989         return;
2990
2991     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2992     if (!node)
2993         return;
2994
2995     if (!node->HasChildren())
2996         return;
2997
2998             if (!node->IsOpen())
2999             {
3000                 if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem()) )
3001                 {
3002                     // Vetoed by the event handler.
3003                     return;
3004                 }
3005
3006                 node->ToggleOpen();
3007
3008                 // build the children of current node
3009                 if( node->GetChildNodes().empty() )
3010                 {
3011                     SortPrepare();
3012                     ::BuildTreeHelper(GetModel(), node->GetItem(), node);
3013                 }
3014
3015                 // By expanding the node all row indices that are currently in the selection list
3016                 // and are greater than our node have become invalid. So we have to correct that now.
3017                 const unsigned rowAdjustment = node->GetSubTreeCount();
3018                 for(unsigned i=0; i<m_selection.size(); ++i)
3019                 {
3020                     const unsigned testRow = m_selection[i];
3021                     // all rows above us are not affected, so skip them
3022                     if(testRow <= row)
3023                         continue;
3024
3025                     m_selection[i] += rowAdjustment;
3026                 }
3027
3028                 if(m_currentRow > row)
3029                     ChangeCurrentRow(m_currentRow + rowAdjustment);
3030
3031                 m_count = -1;
3032                 UpdateDisplay();
3033                 // Send the expanded event
3034                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
3035             }
3036 }
3037
3038 void wxDataViewMainWindow::Collapse(unsigned int row)
3039 {
3040     if (IsList())
3041         return;
3042
3043     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
3044     if (!node)
3045         return;
3046
3047     if (!node->HasChildren())
3048         return;
3049
3050         if (node->IsOpen())
3051         {
3052             if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem()) )
3053             {
3054                 // Vetoed by the event handler.
3055                 return;
3056             }
3057
3058             // Find out if there are selected items below the current node.
3059             bool selectCollapsingRow = false;
3060             const unsigned rowAdjustment = node->GetSubTreeCount();
3061             unsigned maxRowToBeTested = row + rowAdjustment;
3062             for(unsigned i=0; i<m_selection.size(); ++i)
3063             {
3064                 const unsigned testRow = m_selection[i];
3065                 if(testRow > row && testRow <= maxRowToBeTested)
3066                 {
3067                     selectCollapsingRow = true;
3068                     // get out as soon as we have found a node that is selected
3069                     break;
3070                 }
3071             }
3072
3073             node->ToggleOpen();
3074
3075             // If the node to be closed has selected items the user won't see those any longer.
3076             // We select the collapsing node in this case.
3077             if(selectCollapsingRow)
3078             {
3079                 SelectAllRows(false);
3080                 ChangeCurrentRow(row);
3081                 SelectRow(row, true);
3082                 SendSelectionChangedEvent(GetItemByRow(row));
3083             }
3084             else
3085             {
3086                 // if there were no selected items below our node we still need to "fix" the
3087                 // selection list to adjust for the changing of the row indices.
3088                 // We actually do the opposite of what we are doing in Expand().
3089                 for(unsigned i=0; i<m_selection.size(); ++i)
3090                 {
3091                     const unsigned testRow = m_selection[i];
3092                     // all rows above us are not affected, so skip them
3093                     if(testRow <= row)
3094                         continue;
3095
3096                     m_selection[i] -= rowAdjustment;
3097                 }
3098
3099                 // if the "current row" is being collapsed away we change it to the current row ;-)
3100                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3101                     ChangeCurrentRow(row);
3102                 else if(m_currentRow > row)
3103                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3104             }
3105
3106             m_count = -1;
3107             UpdateDisplay();
3108             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3109         }
3110 }
3111
3112 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3113 {
3114     const wxDataViewModel * model = GetModel();
3115     if( model == NULL )
3116         return NULL;
3117
3118     if (!item.IsOk())
3119         return m_root;
3120
3121     // Compose the parent-chain for the item we are looking for
3122     wxVector<wxDataViewItem> parentChain;
3123     wxDataViewItem it( item );
3124     while( it.IsOk() )
3125     {
3126         parentChain.push_back(it);
3127         it = model->GetParent(it);
3128     }
3129
3130     // Find the item along the parent-chain.
3131     // This algorithm is designed to speed up the node-finding method
3132     wxDataViewTreeNode* node = m_root;
3133     for( unsigned iter = parentChain.size()-1; ; --iter )
3134     {
3135         if( node->HasChildren() )
3136         {
3137             if( node->GetChildNodes().empty() )
3138             {
3139                 // Even though the item is a container, it doesn't have any
3140                 // child nodes in the control's representation yet. We have
3141                 // to realize its subtree now.
3142                 SortPrepare();
3143                 ::BuildTreeHelper(model, node->GetItem(), node);
3144             }
3145
3146             const wxDataViewTreeNodes& nodes = node->GetChildNodes();
3147             bool found = false;
3148
3149             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3150             {
3151                 wxDataViewTreeNode* currentNode = nodes[i];
3152                 if (currentNode->GetItem() == parentChain[iter])
3153                 {
3154                     if (currentNode->GetItem() == item)
3155                         return currentNode;
3156
3157                     node = currentNode;
3158                     found = true;
3159                     break;
3160                 }
3161             }
3162             if (!found)
3163                 return NULL;
3164         }
3165         else
3166             return NULL;
3167
3168         if ( !iter )
3169             break;
3170     }
3171     return NULL;
3172 }
3173
3174 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3175                                     wxDataViewColumn* &column )
3176 {
3177     wxDataViewColumn *col = NULL;
3178     unsigned int cols = GetOwner()->GetColumnCount();
3179     unsigned int colnum = 0;
3180     int x, y;
3181     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3182     for (unsigned x_start = 0; colnum < cols; colnum++)
3183     {
3184         col = GetOwner()->GetColumnAt(colnum);
3185         if (col->IsHidden())
3186             continue;      // skip it!
3187
3188         unsigned int w = col->GetWidth();
3189         if (x_start+w >= (unsigned int)x)
3190             break;
3191
3192         x_start += w;
3193     }
3194
3195     column = col;
3196     item = GetItemByRow( GetLineAt( y ) );
3197 }
3198
3199 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3200                                           const wxDataViewColumn* column )
3201 {
3202     int xpos = 0;
3203     int width = 0;
3204
3205     unsigned int cols = GetOwner()->GetColumnCount();
3206     // If column is null the loop will compute the combined width of all columns.
3207     // Otherwise, it will compute the x position of the column we are looking for.
3208     for (unsigned int i = 0; i < cols; i++)
3209     {
3210         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3211
3212         if (col == column)
3213             break;
3214
3215         if (col->IsHidden())
3216             continue;      // skip it!
3217
3218         xpos += col->GetWidth();
3219         width += col->GetWidth();
3220     }
3221
3222     if(column != 0)
3223     {
3224         // If we have a column, we need can get its width directly.
3225         if(column->IsHidden())
3226             width = 0;
3227         else
3228             width = column->GetWidth();
3229
3230     }
3231     else
3232     {
3233         // If we have no column, we reset the x position back to zero.
3234         xpos = 0;
3235     }
3236
3237     // we have to take an expander column into account and compute its indentation
3238     // to get the correct x position where the actual text is
3239     int indent = 0;
3240     int row = GetRowByItem(item);
3241     if (!IsList() &&
3242             (column == 0 || GetExpanderColumnOrFirstOne(GetOwner()) == column) )
3243     {
3244         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3245         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3246         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3247     }
3248
3249     wxRect itemRect( xpos + indent,
3250                      GetLineStart( row ),
3251                      width - indent,
3252                      GetLineHeight( row ) );
3253
3254     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3255                                       &itemRect.x, &itemRect.y );
3256
3257     return itemRect;
3258 }
3259
3260 int wxDataViewMainWindow::RecalculateCount()
3261 {
3262     if (IsVirtualList())
3263     {
3264         wxDataViewVirtualListModel *list_model =
3265             (wxDataViewVirtualListModel*) GetModel();
3266
3267         return list_model->GetCount();
3268     }
3269     else
3270     {
3271         return m_root->GetSubTreeCount();
3272     }
3273 }
3274
3275 class ItemToRowJob : public DoJob
3276 {
3277 public:
3278     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3279         : m_iter(iter),
3280         item(item_)
3281     {
3282         ret = -1;
3283     }
3284
3285     // Maybe binary search will help to speed up this process
3286     virtual int operator() ( wxDataViewTreeNode * node)
3287     {
3288         ret ++;
3289         if( node->GetItem() == item )
3290         {
3291             return DoJob::DONE;
3292         }
3293
3294         if( node->GetItem() == *m_iter )
3295         {
3296             m_iter++;
3297             return DoJob::CONTINUE;
3298         }
3299         else
3300         {
3301             ret += node->GetSubTreeCount();
3302             return DoJob::SKIP_SUBTREE;
3303         }
3304
3305     }
3306
3307     // the row number is begin from zero
3308     int GetResult() const
3309         { return ret -1; }
3310
3311 private:
3312     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3313     wxDataViewItem item;
3314     int ret;
3315
3316 };
3317
3318 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3319 {
3320     const wxDataViewModel * model = GetModel();
3321     if( model == NULL )
3322         return -1;
3323
3324     if (IsVirtualList())
3325     {
3326         return wxPtrToUInt( item.GetID() ) -1;
3327     }
3328     else
3329     {
3330         if( !item.IsOk() )
3331             return -1;
3332
3333         // Compose the parent-chain of the item we are looking for
3334         wxVector<wxDataViewItem> parentChain;
3335         wxDataViewItem it( item );
3336         while( it.IsOk() )
3337         {
3338             parentChain.push_back(it);
3339             it = model->GetParent(it);
3340         }
3341
3342         // add an 'invalid' item to represent our 'invisible' root node
3343         parentChain.push_back(wxDataViewItem());
3344
3345         // the parent chain was created by adding the deepest parent first.
3346         // so if we want to start at the root node, we have to iterate backwards through the vector
3347         ItemToRowJob job( item, parentChain.rbegin() );
3348         Walker( m_root, job );
3349         return job.GetResult();
3350     }
3351 }
3352
3353 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3354                              wxDataViewTreeNode * node)
3355 {
3356     if( !model->IsContainer( item ) )
3357         return;
3358
3359     wxDataViewItemArray children;
3360     unsigned int num = model->GetChildren( item, children);
3361
3362     for ( unsigned int index = 0; index < num; index++ )
3363     {
3364         wxDataViewTreeNode *n = new wxDataViewTreeNode(node, children[index]);
3365
3366         if( model->IsContainer(children[index]) )
3367             n->SetHasChildren( true );
3368
3369         node->InsertChild(n, index);
3370     }
3371
3372     wxASSERT( node->IsOpen() );
3373     node->ChangeSubTreeCount(+num);
3374 }
3375
3376 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3377 {
3378     DestroyTree();
3379
3380     if (GetModel()->IsVirtualListModel())
3381     {
3382         m_count = -1;
3383         return;
3384     }
3385
3386     m_root = wxDataViewTreeNode::CreateRootNode();
3387
3388     // First we define a invalid item to fetch the top-level elements
3389     wxDataViewItem item;
3390     SortPrepare();
3391     BuildTreeHelper( model, item, m_root);
3392     m_count = -1;
3393 }
3394
3395 void wxDataViewMainWindow::DestroyTree()
3396 {
3397     if (!IsVirtualList())
3398     {
3399         wxDELETE(m_root);
3400         m_count = 0;
3401     }
3402 }
3403
3404 wxDataViewColumn*
3405 wxDataViewMainWindow::FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode)
3406 {
3407     // Edit the current column editable in 'mode'. If no column is focused
3408     // (typically because the user has full row selected), try to find the
3409     // first editable column (this would typically be a checkbox for
3410     // wxDATAVIEW_CELL_ACTIVATABLE and we don't want to force the user to set
3411     // focus on the checkbox column; or on the only editable text column).
3412
3413     wxDataViewColumn *candidate = m_currentCol;
3414
3415     if ( candidate &&
3416          candidate->GetRenderer()->GetMode() != mode &&
3417          !m_currentColSetByKeyboard )
3418     {
3419         // If current column was set by mouse to something not editable (in
3420         // 'mode') and the user pressed Space/F2 to edit it, treat the
3421         // situation as if there was whole-row focus, because that's what is
3422         // visually indicated and the mouse click could very well be targeted
3423         // on the row rather than on an individual cell.
3424         //
3425         // But if it was done by keyboard, respect that even if the column
3426         // isn't editable, because focus is visually on that column and editing
3427         // something else would be surprising.
3428         candidate = NULL;
3429     }
3430
3431     if ( !candidate )
3432     {
3433         const unsigned cols = GetOwner()->GetColumnCount();
3434         for ( unsigned i = 0; i < cols; i++ )
3435         {
3436             wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
3437             if ( c->IsHidden() )
3438                 continue;
3439
3440             if ( c->GetRenderer()->GetMode() == mode )
3441             {
3442                 candidate = c;
3443                 break;
3444             }
3445         }
3446     }
3447
3448     // If on container item without columns, only the expander column
3449     // may be directly editable:
3450     if ( candidate &&
3451          GetOwner()->GetExpanderColumn() != candidate &&
3452          GetModel()->IsContainer(item) &&
3453          !GetModel()->HasContainerColumns(item) )
3454     {
3455         candidate = GetOwner()->GetExpanderColumn();
3456     }
3457
3458     if ( !candidate )
3459        return NULL;
3460
3461    if ( candidate->GetRenderer()->GetMode() != mode )
3462        return NULL;
3463
3464    return candidate;
3465 }
3466
3467 void wxDataViewMainWindow::OnCharHook(wxKeyEvent& event)
3468 {
3469     if ( m_editorCtrl )
3470     {
3471         // Handle any keys special for the in-place editor and return without
3472         // calling Skip() below.
3473         switch ( event.GetKeyCode() )
3474         {
3475             case WXK_ESCAPE:
3476                 m_editorRenderer->CancelEditing();
3477                 return;
3478
3479             case WXK_RETURN:
3480                 m_editorRenderer->FinishEditing();
3481                 return;
3482         }
3483     }
3484
3485     event.Skip();
3486 }
3487
3488 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3489 {
3490     wxWindow * const parent = GetParent();
3491
3492     // propagate the char event upwards
3493     wxKeyEvent eventForParent(event);
3494     eventForParent.SetEventObject(parent);
3495     if ( parent->ProcessWindowEvent(eventForParent) )
3496         return;
3497
3498     if ( parent->HandleAsNavigationKey(event) )
3499         return;
3500
3501     // no item -> nothing to do
3502     if (!HasCurrentRow())
3503     {
3504         event.Skip();
3505         return;
3506     }
3507
3508     // don't use m_linesPerPage directly as it might not be computed yet
3509     const int pageSize = GetCountPerPage();
3510     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3511
3512     switch ( event.GetKeyCode() )
3513     {
3514         case WXK_RETURN:
3515             {
3516                 // Enter activates the item, i.e. sends wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED to
3517                 // it. Only if that event is not handled do we activate column renderer (which
3518                 // is normally done by Space) or even inline editing.
3519
3520                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3521
3522                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3523                                    parent->GetId());
3524                 le.SetItem(item);
3525                 le.SetEventObject(parent);
3526                 le.SetModel(GetModel());
3527
3528                 if ( parent->ProcessWindowEvent(le) )
3529                     break;
3530                 // else: fall through to WXK_SPACE handling
3531             }
3532
3533         case WXK_SPACE:
3534             {
3535                 // Space toggles activatable items or -- if not activatable --
3536                 // starts inline editing (this is normally done using F2 on
3537                 // Windows, but Space is common everywhere else, so use it too
3538                 // for greater cross-platform compatibility).
3539
3540                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3541
3542                 // Activate the current activatable column. If not column is focused (typically
3543                 // because the user has full row selected), try to find the first activatable
3544                 // column (this would typically be a checkbox and we don't want to force the user
3545                 // to set focus on the checkbox column).
3546                 wxDataViewColumn *activatableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_ACTIVATABLE);
3547
3548                 if ( activatableCol )
3549                 {
3550                     const unsigned colIdx = activatableCol->GetModelColumn();
3551                     const wxRect cell_rect = GetOwner()->GetItemRect(item, activatableCol);
3552
3553                     wxDataViewRenderer *cell = activatableCol->GetRenderer();
3554                     cell->PrepareForItem(GetModel(), item, colIdx);
3555                     cell->WXActivateCell(cell_rect, GetModel(), item, colIdx, NULL);
3556
3557                     break;
3558                 }
3559                 // else: fall through to WXK_F2 handling
3560             }
3561
3562         case WXK_F2:
3563             {
3564                 if( !m_selection.empty() )
3565                 {
3566                     // Mimic Windows 7 behavior: edit the item that has focus
3567                     // if it is selected and the first selected item if focus
3568                     // is out of selection.
3569                     int sel;
3570                     if ( m_selection.Index(m_currentRow) != wxNOT_FOUND )
3571                         sel = m_currentRow;
3572                     else
3573                         sel = m_selection[0];
3574
3575
3576                     const wxDataViewItem item = GetItemByRow(sel);
3577
3578                     // Edit the current column. If no column is focused
3579                     // (typically because the user has full row selected), try
3580                     // to find the first editable column.
3581                     wxDataViewColumn *editableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_EDITABLE);
3582
3583                     if ( editableCol )
3584                         GetOwner()->StartEditor(item, GetOwner()->GetColumnIndex(editableCol));
3585                 }
3586             }
3587             break;
3588
3589         case WXK_UP:
3590             if ( m_currentRow > 0 )
3591                 OnVerticalNavigation( m_currentRow - 1, event );
3592             break;
3593
3594         case WXK_DOWN:
3595             if ( m_currentRow + 1 < GetRowCount() )
3596                 OnVerticalNavigation( m_currentRow + 1, event );
3597             break;
3598         // Add the process for tree expanding/collapsing
3599         case WXK_LEFT:
3600             OnLeftKey();
3601             break;
3602
3603         case WXK_RIGHT:
3604             OnRightKey();
3605             break;
3606
3607         case WXK_END:
3608         {
3609             if (!IsEmpty())
3610                 OnVerticalNavigation( GetRowCount() - 1, event );
3611             break;
3612         }
3613         case WXK_HOME:
3614             if (!IsEmpty())
3615                 OnVerticalNavigation( 0, event );
3616             break;
3617
3618         case WXK_PAGEUP:
3619             {
3620                 int steps = pageSize - 1;
3621                 int index = m_currentRow - steps;
3622                 if (index < 0)
3623                     index = 0;
3624
3625                 OnVerticalNavigation( index, event );
3626             }
3627             break;
3628
3629         case WXK_PAGEDOWN:
3630             {
3631                 int steps = pageSize - 1;
3632                 unsigned int index = m_currentRow + steps;
3633                 unsigned int count = GetRowCount();
3634                 if ( index >= count )
3635                     index = count - 1;
3636
3637                 OnVerticalNavigation( index, event );
3638             }
3639             break;
3640
3641         default:
3642             event.Skip();
3643     }
3644 }
3645
3646 void wxDataViewMainWindow::OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event)
3647 {
3648     wxCHECK_RET( newCurrent < GetRowCount(),
3649                 wxT("invalid item index in OnVerticalNavigation()") );
3650
3651     // if there is no selection, we cannot move it anywhere
3652     if (!HasCurrentRow())
3653         return;
3654
3655     unsigned int oldCurrent = m_currentRow;
3656
3657     // in single selection we just ignore Shift as we can't select several
3658     // items anyhow
3659     if ( event.ShiftDown() && !IsSingleSel() )
3660     {
3661         RefreshRow( oldCurrent );
3662
3663         ChangeCurrentRow( newCurrent );
3664
3665         // select all the items between the old and the new one
3666         if ( oldCurrent > newCurrent )
3667         {
3668             newCurrent = oldCurrent;
3669             oldCurrent = m_currentRow;
3670         }
3671
3672         SelectRows( oldCurrent, newCurrent, true );
3673         if (oldCurrent!=newCurrent)
3674             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
3675     }
3676     else // !shift
3677     {
3678         RefreshRow( oldCurrent );
3679
3680         // all previously selected items are unselected unless ctrl is held
3681         if ( !event.ControlDown() )
3682             SelectAllRows(false);
3683
3684         ChangeCurrentRow( newCurrent );
3685
3686         if ( !event.ControlDown() )
3687         {
3688             SelectRow( m_currentRow, true );
3689             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3690         }
3691         else
3692             RefreshRow( m_currentRow );
3693     }
3694
3695     GetOwner()->EnsureVisible( m_currentRow, -1 );
3696 }
3697
3698 void wxDataViewMainWindow::OnLeftKey()
3699 {
3700     if ( IsList() )
3701     {
3702         TryAdvanceCurrentColumn(NULL, /*forward=*/false);
3703     }
3704     else
3705     {
3706         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3707
3708         if ( TryAdvanceCurrentColumn(node, /*forward=*/false) )
3709             return;
3710
3711         // Because TryAdvanceCurrentColumn() return false, we are at the first
3712         // column or using whole-row selection. In this situation, we can use
3713         // the standard TreeView handling of the left key.
3714         if (node->HasChildren() && node->IsOpen())
3715         {
3716             Collapse(m_currentRow);
3717         }
3718         else
3719         {
3720             // if the node is already closed, we move the selection to its parent
3721             wxDataViewTreeNode *parent_node = node->GetParent();
3722
3723             if (parent_node)
3724             {
3725                 int parent = GetRowByItem( parent_node->GetItem() );
3726                 if ( parent >= 0 )
3727                 {
3728                     unsigned int row = m_currentRow;
3729                     SelectRow( row, false);
3730                     SelectRow( parent, true );
3731                     ChangeCurrentRow( parent );
3732                     GetOwner()->EnsureVisible( parent, -1 );
3733                     SendSelectionChangedEvent( parent_node->GetItem() );
3734                 }
3735             }
3736         }
3737     }
3738 }
3739
3740 void wxDataViewMainWindow::OnRightKey()
3741 {
3742     if ( IsList() )
3743     {
3744         TryAdvanceCurrentColumn(NULL, /*forward=*/true);
3745     }
3746     else
3747     {
3748         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3749
3750         if ( node->HasChildren() )
3751         {
3752             if ( !node->IsOpen() )
3753             {
3754                 Expand( m_currentRow );
3755             }
3756             else
3757             {
3758                 // if the node is already open, we move the selection to the first child
3759                 unsigned int row = m_currentRow;
3760                 SelectRow( row, false );
3761                 SelectRow( row + 1, true );
3762                 ChangeCurrentRow( row + 1 );
3763                 GetOwner()->EnsureVisible( row + 1, -1 );
3764                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3765             }
3766         }
3767         else
3768         {
3769             TryAdvanceCurrentColumn(node, /*forward=*/true);
3770         }
3771     }
3772 }
3773
3774 bool wxDataViewMainWindow::TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward)
3775 {
3776     if ( GetOwner()->GetColumnCount() == 0 )
3777         return false;
3778
3779     if ( !m_useCellFocus )
3780         return false;
3781
3782     if ( node )
3783     {
3784         // navigation shouldn't work in branch nodes without other columns:
3785         if ( node->HasChildren() && !GetModel()->HasContainerColumns(node->GetItem()) )
3786             return false;
3787     }
3788
3789     if ( m_currentCol == NULL || !m_currentColSetByKeyboard )
3790     {
3791         if ( forward )
3792         {
3793             m_currentCol = GetOwner()->GetColumnAt(1);
3794             m_currentColSetByKeyboard = true;
3795             RefreshRow(m_currentRow);
3796             return true;
3797         }
3798         else
3799             return false;
3800     }
3801
3802     int idx = GetOwner()->GetColumnIndex(m_currentCol) + (forward ? +1 : -1);
3803
3804     if ( idx >= (int)GetOwner()->GetColumnCount() )
3805         return false;
3806
3807     GetOwner()->EnsureVisible(m_currentRow, idx);
3808
3809     if ( idx < 1 )
3810     {
3811         // We are going to the left of the second column. Reset to whole-row
3812         // focus (which means first column would be edited).
3813         m_currentCol = NULL;
3814         RefreshRow(m_currentRow);
3815         return true;
3816     }
3817
3818     m_currentCol = GetOwner()->GetColumnAt(idx);
3819     m_currentColSetByKeyboard = true;
3820     RefreshRow(m_currentRow);
3821     return true;
3822 }
3823
3824 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3825 {
3826     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3827     {
3828         // let the base handle mouse wheel events.
3829         event.Skip();
3830         return;
3831     }
3832
3833     // set the focus to ourself if any of the mouse buttons are pressed
3834     if(event.ButtonDown() && !HasFocus())
3835         SetFocus();
3836
3837     int x = event.GetX();
3838     int y = event.GetY();
3839     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3840     wxDataViewColumn *col = NULL;
3841
3842     int xpos = 0;
3843     unsigned int cols = GetOwner()->GetColumnCount();
3844     unsigned int i;
3845     for (i = 0; i < cols; i++)
3846     {
3847         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3848         if (c->IsHidden())
3849             continue;      // skip it!
3850
3851         if (x < xpos + c->GetWidth())
3852         {
3853             col = c;
3854             break;
3855         }
3856         xpos += c->GetWidth();
3857     }
3858
3859     wxDataViewModel* const model = GetModel();
3860
3861     const unsigned int current = GetLineAt( y );
3862     const wxDataViewItem item = GetItemByRow(current);
3863
3864     // Handle right clicking here, before everything else as context menu
3865     // events should be sent even when we click outside of any item, unlike all
3866     // the other ones.
3867     if (event.RightUp())
3868     {
3869         wxWindow *parent = GetParent();
3870         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3871         le.SetEventObject(parent);
3872         le.SetModel(model);
3873
3874         if ( item.IsOk() && col )
3875         {
3876             le.SetItem( item );
3877             le.SetColumn( col->GetModelColumn() );
3878             le.SetDataViewColumn( col );
3879
3880             wxVariant value;
3881             model->GetValue( value, item, col->GetModelColumn() );
3882             le.SetValue(value);
3883         }
3884
3885         parent->ProcessWindowEvent(le);
3886         return;
3887     }
3888
3889     if (!col)
3890     {
3891         event.Skip();
3892         return;
3893     }
3894
3895     wxDataViewRenderer *cell = col->GetRenderer();
3896     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3897     {
3898         // Unselect all if below the last row ?
3899         event.Skip();
3900         return;
3901     }
3902
3903     wxDataViewColumn* const
3904         expander = GetExpanderColumnOrFirstOne(GetOwner());
3905
3906     // Test whether the mouse is hovering over the expander (a.k.a tree "+"
3907     // button) and also determine the offset of the real cell start, skipping
3908     // the indentation and the expander itself.
3909     bool hoverOverExpander = false;
3910     int itemOffset = 0;
3911     if ((!IsList()) && (expander == col))
3912     {
3913         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3914
3915         int indent = node->GetIndentLevel();
3916         itemOffset = GetOwner()->GetIndent()*indent;
3917
3918         if ( node->HasChildren() )
3919         {
3920             // we make the rectangle we are looking in a bit bigger than the actual
3921             // visual expander so the user can hit that little thing reliably
3922             wxRect rect(itemOffset,
3923                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3924                         m_lineHeight, m_lineHeight);
3925
3926             if( rect.Contains(x, y) )
3927             {
3928                 // So the mouse is over the expander
3929                 hoverOverExpander = true;
3930                 if (m_underMouse && m_underMouse != node)
3931                 {
3932                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3933                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3934                 }
3935                 if (m_underMouse != node)
3936                 {
3937                     // wxLogMessage("Do the row: %d", current);
3938                     RefreshRow(current);
3939                 }
3940                 m_underMouse = node;
3941             }
3942         }
3943
3944         // Account for the expander as well, even if this item doesn't have it,
3945         // its parent does so it still counts for the offset.
3946         itemOffset += m_lineHeight;
3947     }
3948     if (!hoverOverExpander)
3949     {
3950         if (m_underMouse != NULL)
3951         {
3952             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3953             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3954             m_underMouse = NULL;
3955         }
3956     }
3957
3958 #if wxUSE_DRAG_AND_DROP
3959     if (event.Dragging())
3960     {
3961         if (m_dragCount == 0)
3962         {
3963             // we have to report the raw, physical coords as we want to be
3964             // able to call HitTest(event.m_pointDrag) from the user code to
3965             // get the item being dragged
3966             m_dragStart = event.GetPosition();
3967         }
3968
3969         m_dragCount++;
3970
3971         if (m_dragCount != 3)
3972             return;
3973
3974         if (event.LeftIsDown())
3975         {
3976             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3977                                              &m_dragStart.x, &m_dragStart.y );
3978             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3979             wxDataViewItem itemDragged = GetItemByRow( drag_item_row );
3980
3981             // Notify cell about drag
3982             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3983             event.SetEventObject( m_owner );
3984             event.SetItem( itemDragged );
3985             event.SetModel( model );
3986             if (!m_owner->HandleWindowEvent( event ))
3987                 return;
3988
3989             if (!event.IsAllowed())
3990                 return;
3991
3992             wxDataObject *obj = event.GetDataObject();
3993             if (!obj)
3994                 return;
3995
3996             wxDataViewDropSource drag( this, drag_item_row );
3997             drag.SetData( *obj );
3998             /* wxDragResult res = */ drag.DoDragDrop();
3999             delete obj;
4000         }
4001         return;
4002     }
4003     else
4004     {
4005         m_dragCount = 0;
4006     }
4007 #endif // wxUSE_DRAG_AND_DROP
4008
4009     bool simulateClick = false;
4010
4011     if (event.ButtonDClick())
4012     {
4013         m_renameTimer->Stop();
4014         m_lastOnSame = false;
4015     }
4016
4017     bool ignore_other_columns =
4018         ((expander != col) &&
4019         (model->IsContainer(item)) &&
4020         (!model->HasContainerColumns(item)));
4021
4022     if (event.LeftDClick())
4023     {
4024         if(hoverOverExpander)
4025         {
4026             // a double click on the expander will be converted into a "simulated" normal click
4027             simulateClick = true;
4028         }
4029         else if ( current == m_lineLastClicked )
4030         {
4031             wxWindow *parent = GetParent();
4032             wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
4033             le.SetItem( item );
4034             le.SetColumn( col->GetModelColumn() );
4035             le.SetDataViewColumn( col );
4036             le.SetEventObject(parent);
4037             le.SetModel(GetModel());
4038
4039             parent->ProcessWindowEvent(le);
4040             return;
4041         }
4042         else
4043         {
4044             // The first click was on another item, so don't interpret this as
4045             // a double click, but as a simple click instead
4046             simulateClick = true;
4047         }
4048     }
4049
4050     if (event.LeftUp() && !hoverOverExpander)
4051     {
4052         if (m_lineSelectSingleOnUp != (unsigned int)-1)
4053         {
4054             // select single line
4055             SelectAllRows( false );
4056             SelectRow( m_lineSelectSingleOnUp, true );
4057             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
4058         }
4059
4060         // If the user click the expander, we do not do editing even if the column
4061         // with expander are editable
4062         if (m_lastOnSame && !ignore_other_columns)
4063         {
4064             if ((col == m_currentCol) && (current == m_currentRow) &&
4065                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
4066             {
4067                 m_renameTimer->Start( 100, true );
4068             }
4069         }
4070
4071         m_lastOnSame = false;
4072         m_lineSelectSingleOnUp = (unsigned int)-1;
4073     }
4074     else if(!event.LeftUp())
4075     {
4076         // This is necessary, because after a DnD operation in
4077         // from and to ourself, the up event is swallowed by the
4078         // DnD code. So on next non-up event (which means here and
4079         // now) m_lineSelectSingleOnUp should be reset.
4080         m_lineSelectSingleOnUp = (unsigned int)-1;
4081     }
4082
4083     if (event.RightDown())
4084     {
4085         m_lineBeforeLastClicked = m_lineLastClicked;
4086         m_lineLastClicked = current;
4087
4088         // If the item is already selected, do not update the selection.
4089         // Multi-selections should not be cleared if a selected item is clicked.
4090         if (!IsRowSelected(current))
4091         {
4092             SelectAllRows(false);
4093             const unsigned oldCurrent = m_currentRow;
4094             ChangeCurrentRow(current);
4095             SelectRow(m_currentRow,true);
4096             RefreshRow(oldCurrent);
4097             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4098         }
4099     }
4100     else if (event.MiddleDown())
4101     {
4102     }
4103
4104     if((event.LeftDown() || simulateClick) && hoverOverExpander)
4105     {
4106         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
4107
4108         // hoverOverExpander being true tells us that our node must be
4109         // valid and have children.
4110         // So we don't need any extra checks.
4111         if( node->IsOpen() )
4112             Collapse(current);
4113         else
4114             Expand(current);
4115     }
4116     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
4117     {
4118         m_lineBeforeLastClicked = m_lineLastClicked;
4119         m_lineLastClicked = current;
4120
4121         unsigned int oldCurrentRow = m_currentRow;
4122         bool oldWasSelected = IsRowSelected(m_currentRow);
4123
4124         bool cmdModifierDown = event.CmdDown();
4125         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
4126         {
4127             if ( IsSingleSel() || !IsRowSelected(current) )
4128             {
4129                 SelectAllRows( false );
4130                 ChangeCurrentRow(current);
4131                 SelectRow(m_currentRow,true);
4132                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4133             }
4134             else // multi sel & current is highlighted & no mod keys
4135             {
4136                 m_lineSelectSingleOnUp = current;
4137                 ChangeCurrentRow(current); // change focus
4138             }
4139         }
4140         else // multi sel & either ctrl or shift is down
4141         {
4142             if (cmdModifierDown)
4143             {
4144                 ChangeCurrentRow(current);
4145                 ReverseRowSelection(m_currentRow);
4146                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
4147             }
4148             else if (event.ShiftDown())
4149             {
4150                 ChangeCurrentRow(current);
4151
4152                 unsigned int lineFrom = oldCurrentRow,
4153                     lineTo = current;
4154
4155                 if ( lineTo < lineFrom )
4156                 {
4157                     lineTo = lineFrom;
4158                     lineFrom = m_currentRow;
4159                 }
4160
4161                 SelectRows(lineFrom, lineTo, true);
4162                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
4163             }
4164             else // !ctrl, !shift
4165             {
4166                 // test in the enclosing if should make it impossible
4167                 wxFAIL_MSG( wxT("how did we get here?") );
4168             }
4169         }
4170
4171         if (m_currentRow != oldCurrentRow)
4172             RefreshRow( oldCurrentRow );
4173
4174         wxDataViewColumn *oldCurrentCol = m_currentCol;
4175
4176         // Update selection here...
4177         m_currentCol = col;
4178         m_currentColSetByKeyboard = false;
4179
4180         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
4181                         (current == oldCurrentRow)) && oldWasSelected;
4182
4183         // Call ActivateCell() after everything else as under GTK+
4184         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
4185         {
4186             // notify cell about click
4187             cell->PrepareForItem(model, item, col->GetModelColumn());
4188
4189             wxRect cell_rect( xpos + itemOffset,
4190                               GetLineStart( current ),
4191                               col->GetWidth() - itemOffset,
4192                               GetLineHeight( current ) );
4193
4194             // Report position relative to the cell's custom area, i.e.
4195             // no the entire space as given by the control but the one
4196             // used by the renderer after calculation of alignment etc.
4197
4198             // adjust the rectangle ourselves to account for the alignment
4199             wxRect rectItem = cell_rect;
4200             const int align = cell->GetAlignment();
4201             if ( align != wxDVR_DEFAULT_ALIGNMENT )
4202             {
4203                 const wxSize size = cell->GetSize();
4204
4205                 if ( size.x >= 0 && size.x < cell_rect.width )
4206                 {
4207                     if ( align & wxALIGN_CENTER_HORIZONTAL )
4208                         rectItem.x += (cell_rect.width - size.x)/2;
4209                     else if ( align & wxALIGN_RIGHT )
4210                         rectItem.x += cell_rect.width - size.x;
4211                     // else: wxALIGN_LEFT is the default
4212                 }
4213
4214                 if ( size.y >= 0 && size.y < cell_rect.height )
4215                 {
4216                     if ( align & wxALIGN_CENTER_VERTICAL )
4217                         rectItem.y += (cell_rect.height - size.y)/2;
4218                     else if ( align & wxALIGN_BOTTOM )
4219                         rectItem.y += cell_rect.height - size.y;
4220                     // else: wxALIGN_TOP is the default
4221                 }
4222             }
4223
4224             wxMouseEvent event2(event);
4225             event2.m_x -= rectItem.x;
4226             event2.m_y -= rectItem.y;
4227             m_owner->CalcUnscrolledPosition(event2.m_x, event2.m_y, &event2.m_x, &event2.m_y);
4228
4229              /* ignore ret */ cell->WXActivateCell
4230                                     (
4231                                         cell_rect,
4232                                         model,
4233                                         item,
4234                                         col->GetModelColumn(),
4235                                         &event2
4236                                     );
4237         }
4238     }
4239 }
4240
4241 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
4242 {
4243     m_hasFocus = true;
4244
4245     if (HasCurrentRow())
4246         Refresh();
4247
4248     event.Skip();
4249 }
4250
4251 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
4252 {
4253     m_hasFocus = false;
4254
4255     if (HasCurrentRow())
4256         Refresh();
4257
4258     event.Skip();
4259 }
4260
4261 void wxDataViewMainWindow::OnColumnsCountChanged()
4262 {
4263     int editableCount = 0;
4264
4265     const unsigned cols = GetOwner()->GetColumnCount();
4266     for ( unsigned i = 0; i < cols; i++ )
4267     {
4268         wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
4269         if ( c->IsHidden() )
4270             continue;
4271         if ( c->GetRenderer()->GetMode() != wxDATAVIEW_CELL_INERT )
4272             editableCount++;
4273     }
4274
4275     m_useCellFocus = (editableCount > 1);
4276
4277     UpdateDisplay();
4278 }
4279
4280 //-----------------------------------------------------------------------------
4281 // wxDataViewCtrl
4282 //-----------------------------------------------------------------------------
4283
4284 WX_DEFINE_LIST(wxDataViewColumnList)
4285
4286 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
4287 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
4288     EVT_SIZE(wxDataViewCtrl::OnSize)
4289 END_EVENT_TABLE()
4290
4291 wxDataViewCtrl::~wxDataViewCtrl()
4292 {
4293     if (m_notifier)
4294         GetModel()->RemoveNotifier( m_notifier );
4295
4296     m_cols.Clear();
4297     m_colsBestWidths.clear();
4298 }
4299
4300 void wxDataViewCtrl::Init()
4301 {
4302     m_cols.DeleteContents(true);
4303     m_notifier = NULL;
4304
4305     // No sorting column at start
4306     m_sortingColumnIdx = wxNOT_FOUND;
4307
4308     m_headerArea = NULL;
4309
4310     m_colsDirty = false;
4311 }
4312
4313 bool wxDataViewCtrl::Create(wxWindow *parent,
4314                             wxWindowID id,
4315                             const wxPoint& pos,
4316                             const wxSize& size,
4317                             long style,
4318                             const wxValidator& validator,
4319                             const wxString& name)
4320 {
4321 //    if ( (style & wxBORDER_MASK) == 0)
4322 //        style |= wxBORDER_SUNKEN;
4323
4324     Init();
4325
4326     if (!wxControl::Create( parent, id, pos, size,
4327                             style | wxScrolledWindowStyle, validator, name))
4328         return false;
4329
4330     SetInitialSize(size);
4331
4332 #ifdef __WXMAC__
4333     MacSetClipChildren( true );
4334 #endif
4335
4336     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4337
4338     // We use the cursor keys for moving the selection, not scrolling, so call
4339     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4340     // keyboard events forwarded to us from wxListMainWindow.
4341     DisableKeyboardScrolling();
4342
4343     if (HasFlag(wxDV_NO_HEADER))
4344         m_headerArea = NULL;
4345     else
4346         m_headerArea = new wxDataViewHeaderWindow(this);
4347
4348     SetTargetWindow( m_clientArea );
4349
4350     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4351     if (m_headerArea)
4352         sizer->Add( m_headerArea, 0, wxGROW );
4353     sizer->Add( m_clientArea, 1, wxGROW );
4354     SetSizer( sizer );
4355
4356     return true;
4357 }
4358
4359 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4360 {
4361     return wxBORDER_THEME;
4362 }
4363
4364 #ifdef __WXMSW__
4365 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4366                                         WXWPARAM wParam,
4367                                         WXLPARAM lParam)
4368 {
4369     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4370
4371 #ifndef __WXWINCE__
4372     // we need to process arrows ourselves for scrolling
4373     if ( nMsg == WM_GETDLGCODE )
4374     {
4375         rc |= DLGC_WANTARROWS;
4376     }
4377 #endif
4378
4379     return rc;
4380 }
4381 #endif
4382
4383 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4384 {
4385     wxSize newsize = size;
4386     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4387     newsize.y -= m_headerArea->GetSize().y;
4388
4389     return newsize;
4390 }
4391
4392 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4393 {
4394     // We need to override OnSize so that our scrolled
4395     // window a) does call Layout() to use sizers for
4396     // positioning the controls but b) does not query
4397     // the sizer for their size and use that for setting
4398     // the scrollable area as set that ourselves by
4399     // calling SetScrollbar() further down.
4400
4401     Layout();
4402
4403     AdjustScrollbars();
4404
4405     // We must redraw the headers if their height changed. Normally this
4406     // shouldn't happen as the control shouldn't let itself be resized beneath
4407     // its minimal height but avoid the display artefacts that appear if it
4408     // does happen, e.g. because there is really not enough vertical space.
4409     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4410             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4411     {
4412         m_headerArea->Refresh();
4413     }
4414 }
4415
4416 void wxDataViewCtrl::SetFocus()
4417 {
4418     if (m_clientArea)
4419         m_clientArea->SetFocus();
4420 }
4421
4422 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4423 {
4424     if (!wxDataViewCtrlBase::AssociateModel( model ))
4425         return false;
4426
4427     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4428
4429     model->AddNotifier( m_notifier );
4430
4431     m_clientArea->DestroyTree();
4432
4433     m_clientArea->BuildTree(model);
4434
4435     m_clientArea->UpdateDisplay();
4436
4437     return true;
4438 }
4439
4440 #if wxUSE_DRAG_AND_DROP
4441
4442 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4443 {
4444     return m_clientArea->EnableDragSource( format );
4445 }
4446
4447 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4448 {
4449     return m_clientArea->EnableDropTarget( format );
4450 }
4451
4452 #endif // wxUSE_DRAG_AND_DROP
4453
4454 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4455 {
4456     if (!wxDataViewCtrlBase::AppendColumn(col))
4457         return false;
4458
4459     m_cols.Append( col );
4460     m_colsBestWidths.push_back(0);
4461     OnColumnsCountChanged();
4462     return true;
4463 }
4464
4465 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4466 {
4467     if (!wxDataViewCtrlBase::PrependColumn(col))
4468         return false;
4469
4470     m_cols.Insert( col );
4471     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4472     OnColumnsCountChanged();
4473     return true;
4474 }
4475
4476 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4477 {
4478     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4479         return false;
4480
4481     m_cols.Insert( pos, col );
4482     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4483     OnColumnsCountChanged();
4484     return true;
4485 }
4486
4487 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4488 {
4489     if ( m_headerArea )
4490         m_headerArea->UpdateColumn(idx);
4491
4492     m_clientArea->UpdateDisplay();
4493 }
4494
4495 void wxDataViewCtrl::OnColumnsCountChanged()
4496 {
4497     if (m_headerArea)
4498         m_headerArea->SetColumnCount(GetColumnCount());
4499
4500     m_clientArea->OnColumnsCountChanged();
4501 }
4502
4503 void wxDataViewCtrl::DoSetExpanderColumn()
4504 {
4505     m_clientArea->UpdateDisplay();
4506 }
4507
4508 void wxDataViewCtrl::DoSetIndent()
4509 {
4510     m_clientArea->UpdateDisplay();
4511 }
4512
4513 unsigned int wxDataViewCtrl::GetColumnCount() const
4514 {
4515     return m_cols.GetCount();
4516 }
4517
4518 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4519 {
4520     if ( !m_clientArea )
4521         return false;
4522
4523     m_clientArea->SetRowHeight(lineHeight);
4524
4525     return true;
4526 }
4527
4528 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4529 {
4530     return m_cols[idx];
4531 }
4532
4533 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4534 {
4535     // columns can't be reordered if there is no header window which allows
4536     // to do this
4537     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4538                                     : pos;
4539
4540     return GetColumn(idx);
4541 }
4542
4543 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4544 {
4545     const unsigned count = m_cols.size();
4546     for ( unsigned n = 0; n < count; n++ )
4547     {
4548         if ( m_cols[n] == column )
4549             return n;
4550     }
4551
4552     return wxNOT_FOUND;
4553 }
4554
4555 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4556 {
4557     if ( m_colsBestWidths[idx] != 0 )
4558         return m_colsBestWidths[idx];
4559
4560     const int count = m_clientArea->GetRowCount();
4561     wxDataViewColumn *column = GetColumn(idx);
4562     wxDataViewRenderer *renderer =
4563         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4564
4565     class MaxWidthCalculator
4566     {
4567     public:
4568         MaxWidthCalculator(const wxDataViewCtrl *dvc,
4569                            wxDataViewMainWindow *clientArea,
4570                            wxDataViewRenderer *renderer,
4571                            const wxDataViewModel *model,
4572                            unsigned column,
4573                            int expanderSize)
4574             : m_width(0),
4575               m_dvc(dvc),
4576               m_clientArea(clientArea),
4577               m_renderer(renderer),
4578               m_model(model),
4579               m_column(column),
4580               m_expanderSize(expanderSize)
4581
4582         {
4583             m_isExpanderCol =
4584                 !clientArea->IsList() &&
4585                 (column == 0 ||
4586                  GetExpanderColumnOrFirstOne(const_cast<wxDataViewCtrl*>(dvc)) == dvc->GetColumnAt(column));
4587         }
4588
4589         void UpdateWithWidth(int width)
4590         {
4591             m_width = wxMax(m_width, width);
4592         }
4593
4594         void UpdateWithRow(int row)
4595         {
4596             int indent = 0;
4597             wxDataViewItem item;
4598
4599             if ( m_isExpanderCol )
4600             {
4601                 wxDataViewTreeNode *node = m_clientArea->GetTreeNodeByRow(row);
4602                 item = node->GetItem();
4603                 indent = m_dvc->GetIndent() * node->GetIndentLevel() + m_expanderSize;
4604             }
4605             else
4606             {
4607                 item = m_clientArea->GetItemByRow(row);
4608             }
4609
4610             m_renderer->PrepareForItem(m_model, item, m_column);
4611             m_width = wxMax(m_width, m_renderer->GetSize().x + indent);
4612         }
4613
4614         int GetMaxWidth() const { return m_width; }
4615
4616     private:
4617         int m_width;
4618         const wxDataViewCtrl *m_dvc;
4619         wxDataViewMainWindow *m_clientArea;
4620         wxDataViewRenderer *m_renderer;
4621         const wxDataViewModel *m_model;
4622         unsigned m_column;
4623         bool m_isExpanderCol;
4624         int m_expanderSize;
4625     };
4626
4627     MaxWidthCalculator calculator(this, m_clientArea, renderer,
4628                                   GetModel(), column->GetModelColumn(),
4629                                   m_clientArea->GetRowHeight());
4630
4631     if ( m_headerArea )
4632     {
4633         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4634         // Labels on native MSW header are indented on both sides
4635         header_width +=
4636             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4637         calculator.UpdateWithWidth(header_width);
4638     }
4639
4640     // The code below deserves some explanation. For very large controls, we
4641     // simply can't afford to calculate sizes for all items, it takes too
4642     // long. So the best we can do is to check the first and the last N/2
4643     // items in the control for some sufficiently large N and calculate best
4644     // sizes from that. That can result in the calculated best width being too
4645     // small for some outliers, but it's better to get slightly imperfect
4646     // result than to wait several seconds after every update. To avoid highly
4647     // visible miscalculations, we also include all currently visible items
4648     // no matter what.  Finally, the value of N is determined dynamically by
4649     // measuring how much time we spent on the determining item widths so far.
4650
4651 #if wxUSE_STOPWATCH
4652     int top_part_end = count;
4653     static const long CALC_TIMEOUT = 20/*ms*/;
4654     // don't call wxStopWatch::Time() too often
4655     static const unsigned CALC_CHECK_FREQ = 100;
4656     wxStopWatch timer;
4657 #else
4658     // use some hard-coded limit, that's the best we can do without timer
4659     int top_part_end = wxMin(500, count);
4660 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4661
4662     int row = 0;
4663
4664     for ( row = 0; row < top_part_end; row++ )
4665     {
4666 #if wxUSE_STOPWATCH
4667         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4668              timer.Time() > CALC_TIMEOUT )
4669             break;
4670 #endif // wxUSE_STOPWATCH
4671         calculator.UpdateWithRow(row);
4672     }
4673
4674     // row is the first unmeasured item now; that's our value of N/2
4675
4676     if ( row < count )
4677     {
4678         top_part_end = row;
4679
4680         // add bottom N/2 items now:
4681         const int bottom_part_start = wxMax(row, count - row);
4682         for ( row = bottom_part_start; row < count; row++ )
4683         {
4684             calculator.UpdateWithRow(row);
4685         }
4686
4687         // finally, include currently visible items in the calculation:
4688         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4689         int first_visible = m_clientArea->GetLineAt(origin.y);
4690         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4691
4692         first_visible = wxMax(first_visible, top_part_end);
4693         last_visible = wxMin(bottom_part_start, last_visible);
4694
4695         for ( row = first_visible; row < last_visible; row++ )
4696         {
4697             calculator.UpdateWithRow(row);
4698         }
4699
4700         wxLogTrace("dataview",
4701                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4702                    top_part_end,
4703                    count - bottom_part_start,
4704                    wxMax(0, last_visible - first_visible),
4705                    count);
4706     }
4707
4708     int max_width = calculator.GetMaxWidth();
4709     if ( max_width > 0 )
4710         max_width += 2 * PADDING_RIGHTLEFT;
4711
4712     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4713     return max_width;
4714 }
4715
4716 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4717                                 unsigned int WXUNUSED(new_pos))
4718 {
4719     // do _not_ reorder m_cols elements here, they should always be in the
4720     // order in which columns were added, we only display the columns in
4721     // different order
4722     m_clientArea->UpdateDisplay();
4723 }
4724
4725 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4726 {
4727     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4728     if (!ret)
4729         return false;
4730
4731     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4732     m_cols.Erase(ret);
4733     OnColumnsCountChanged();
4734
4735     return true;
4736 }
4737
4738 bool wxDataViewCtrl::ClearColumns()
4739 {
4740     SetExpanderColumn(NULL);
4741     m_cols.Clear();
4742     m_colsBestWidths.clear();
4743     OnColumnsCountChanged();
4744     return true;
4745 }
4746
4747 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4748 {
4749     m_colsBestWidths[idx] = 0;
4750     m_colsDirty = true;
4751 }
4752
4753 void wxDataViewCtrl::InvalidateColBestWidths()
4754 {
4755     m_colsBestWidths.clear();
4756     m_colsBestWidths.resize(m_cols.size());
4757     m_colsDirty = true;
4758 }
4759
4760 void wxDataViewCtrl::UpdateColWidths()
4761 {
4762     if ( !m_headerArea )
4763         return;
4764
4765     const unsigned len = m_colsBestWidths.size();
4766     for ( unsigned i = 0; i < len; i++ )
4767     {
4768         if ( m_colsBestWidths[i] == 0 )
4769             m_headerArea->UpdateColumn(i);
4770     }
4771 }
4772
4773 void wxDataViewCtrl::OnInternalIdle()
4774 {
4775     wxDataViewCtrlBase::OnInternalIdle();
4776
4777     if ( m_colsDirty )
4778     {
4779         m_colsDirty = false;
4780         UpdateColWidths();
4781     }
4782 }
4783
4784 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4785 {
4786 #if 1
4787     unsigned int len = GetColumnCount();
4788     for ( unsigned int i = 0; i < len; i++ )
4789     {
4790         wxDataViewColumn * col = GetColumnAt(i);
4791         if (column==col)
4792             return i;
4793     }
4794
4795     return wxNOT_FOUND;
4796 #else
4797     // This returns the position in pixels which is not what we want.
4798     int ret = 0,
4799         dummy = 0;
4800     unsigned int len = GetColumnCount();
4801     for ( unsigned int i = 0; i < len; i++ )
4802     {
4803         wxDataViewColumn * col = GetColumnAt(i);
4804         if (col->IsHidden())
4805             continue;
4806         ret += col->GetWidth();
4807         if (column==col)
4808         {
4809             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4810             break;
4811         }
4812     }
4813     return ret;
4814 #endif
4815 }
4816
4817 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4818 {
4819     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4820                                             : GetColumn(m_sortingColumnIdx);
4821 }
4822
4823 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4824 {
4825     return GetItemByRow(m_clientArea->GetCurrentRow());
4826 }
4827
4828 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4829 {
4830     const int row = m_clientArea->GetRowByItem(item);
4831
4832     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4833     if ( static_cast<unsigned>(row) != oldCurrent )
4834     {
4835         m_clientArea->ChangeCurrentRow(row);
4836         m_clientArea->RefreshRow(oldCurrent);
4837         m_clientArea->RefreshRow(row);
4838     }
4839 }
4840
4841 int wxDataViewCtrl::GetSelectedItemsCount() const
4842 {
4843     return m_clientArea->GetSelections().size();
4844 }
4845
4846 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4847 {
4848     sel.Empty();
4849     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4850
4851     const size_t len = selections.size();
4852     for ( size_t i = 0; i < len; i++ )
4853     {
4854         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4855         if ( item.IsOk() )
4856         {
4857             sel.Add(item);
4858         }
4859         else
4860         {
4861             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4862         }
4863     }
4864
4865     return sel.size();
4866 }
4867
4868 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4869 {
4870     wxDataViewSelection selection(wxDataViewSelectionCmp);
4871
4872     wxDataViewItem last_parent;
4873
4874     int len = sel.GetCount();
4875     for( int i = 0; i < len; i ++ )
4876     {
4877         wxDataViewItem item = sel[i];
4878         wxDataViewItem parent = GetModel()->GetParent( item );
4879         if (parent)
4880         {
4881             if (parent != last_parent)
4882                 ExpandAncestors(item);
4883         }
4884
4885         last_parent = parent;
4886         int row = m_clientArea->GetRowByItem( item );
4887         if( row >= 0 )
4888             selection.Add( static_cast<unsigned int>(row) );
4889     }
4890
4891     m_clientArea->SetSelections( selection );
4892 }
4893
4894 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4895 {
4896     ExpandAncestors( item );
4897
4898     int row = m_clientArea->GetRowByItem( item );
4899     if( row >= 0 )
4900     {
4901         // Unselect all rows before select another in the single select mode
4902         if (m_clientArea->IsSingleSel())
4903             m_clientArea->SelectAllRows(false);
4904
4905         m_clientArea->SelectRow(row, true);
4906
4907         // Also set focus to the selected item
4908         m_clientArea->ChangeCurrentRow( row );
4909     }
4910 }
4911
4912 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4913 {
4914     int row = m_clientArea->GetRowByItem( item );
4915     if( row >= 0 )
4916         m_clientArea->SelectRow(row, false);
4917 }
4918
4919 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4920 {
4921     int row = m_clientArea->GetRowByItem( item );
4922     if( row >= 0 )
4923     {
4924         return m_clientArea->IsRowSelected(row);
4925     }
4926     return false;
4927 }
4928
4929 void wxDataViewCtrl::SelectAll()
4930 {
4931     m_clientArea->SelectAllRows(true);
4932 }
4933
4934 void wxDataViewCtrl::UnselectAll()
4935 {
4936     m_clientArea->SelectAllRows(false);
4937 }
4938
4939 void wxDataViewCtrl::EnsureVisible( int row, int column )
4940 {
4941     if( row < 0 )
4942         row = 0;
4943     if( row > (int) m_clientArea->GetRowCount() )
4944         row = m_clientArea->GetRowCount();
4945
4946     int first = m_clientArea->GetFirstVisibleRow();
4947     int last = m_clientArea->GetLastVisibleRow();
4948     if( row < first )
4949         m_clientArea->ScrollTo( row, column );
4950     else if( row > last )
4951         m_clientArea->ScrollTo( row - last + first, column );
4952     else
4953         m_clientArea->ScrollTo( first, column );
4954 }
4955
4956 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4957 {
4958     ExpandAncestors( item );
4959
4960     m_clientArea->RecalculateDisplay();
4961
4962     int row = m_clientArea->GetRowByItem(item);
4963     if( row >= 0 )
4964     {
4965         if( column == NULL )
4966             EnsureVisible(row, -1);
4967         else
4968             EnsureVisible( row, GetColumnIndex(column) );
4969     }
4970
4971 }
4972
4973 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4974                               wxDataViewColumn* &column ) const
4975 {
4976     m_clientArea->HitTest(point, item, column);
4977 }
4978
4979 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4980                                     const wxDataViewColumn* column ) const
4981 {
4982     return m_clientArea->GetItemRect(item, column);
4983 }
4984
4985 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4986 {
4987     return m_clientArea->GetItemByRow( row );
4988 }
4989
4990 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4991 {
4992     return m_clientArea->GetRowByItem( item );
4993 }
4994
4995 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4996 {
4997     ExpandAncestors( item );
4998
4999     int row = m_clientArea->GetRowByItem( item );
5000     if (row != -1)
5001         m_clientArea->Expand(row);
5002 }
5003
5004 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
5005 {
5006     int row = m_clientArea->GetRowByItem( item );
5007     if (row != -1)
5008         m_clientArea->Collapse(row);
5009 }
5010
5011 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
5012 {
5013     int row = m_clientArea->GetRowByItem( item );
5014     if (row != -1)
5015         return m_clientArea->IsExpanded(row);
5016     return false;
5017 }
5018
5019 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
5020 {
5021     wxDataViewColumn* col = GetColumn( column );
5022     if (!col)
5023         return;
5024
5025     m_clientArea->StartEditing(item, col);
5026 }
5027
5028 #endif // !wxUSE_GENERICDATAVIEWCTRL
5029
5030 #endif // wxUSE_DATAVIEWCTRL