src/generic/datavgen.cpp

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