src/generic/datavgen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datavgen.cpp
   3 // Purpose:     wxDataViewCtrl generic implementation
   4 // Author:      Robert Roebling
   5 // Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_DATAVIEWCTRL
  19
  20 #include "wx/dataview.h"
  21
  22 #ifdef wxUSE_GENERICDATAVIEWCTRL
  23
  24 #ifndef WX_PRECOMP
  25     #ifdef __WXMSW__
  26         #include "wx/msw/private.h"
  27         #include "wx/msw/wrapwin.h"
  28         #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  29     #endif
  30     #include "wx/sizer.h"
  31     #include "wx/log.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/timer.h"
  34     #include "wx/settings.h"
  35     #include "wx/msgdlg.h"
  36     #include "wx/dcscreen.h"
  37     #include "wx/frame.h"
  38 #endif
  39
  40 #include "wx/stockitem.h"
  41 #include "wx/calctrl.h"
  42 #include "wx/popupwin.h"
  43 #include "wx/renderer.h"
  44 #include "wx/dcbuffer.h"
  45 #include "wx/icon.h"
  46 #include "wx/list.h"
  47 #include "wx/listimpl.cpp"
  48 #include "wx/imaglist.h"
  49 #include "wx/headerctrl.h"
  50 #include "wx/dnd.h"
  51 #include "wx/stopwatch.h"
  52
  53 //-----------------------------------------------------------------------------
  54 // classes
  55 //-----------------------------------------------------------------------------
  56
  57 class wxDataViewColumn;
  58 class wxDataViewHeaderWindow;
  59 class wxDataViewCtrl;
  60
  61 //-----------------------------------------------------------------------------
  62 // classes
  63 //-----------------------------------------------------------------------------
  64
  65 static const int SCROLL_UNIT_X = 15;
  66
  67 // the cell padding on the left/right
  68 static const int PADDING_RIGHTLEFT = 3;
  69
  70 // the expander space margin
  71 static const int EXPANDER_MARGIN = 4;
  72
  73 #ifdef __WXMSW__
  74 static const int EXPANDER_OFFSET = 4;
  75 #else
  76 static const int EXPANDER_OFFSET = 1;
  77 #endif
  78
  79 // Below is the compare stuff.
  80 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  81 // fast search when needed
  82 static wxDataViewModel* g_model;
  83 static int g_column = -2;
  84 static bool g_asending = true;
  85
  86 //-----------------------------------------------------------------------------
  87 // wxDataViewColumn
  88 //-----------------------------------------------------------------------------
  89
  90 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
  91 {
  92     m_width = width;
  93     m_minWidth = 0;
  94     m_align = align;
  95     m_flags = flags;
  96     m_sort = false;
  97     m_sortAscending = true;
  98 }
  99
 100 int wxDataViewColumn::GetWidth() const
 101 {
 102     switch ( m_width )
 103     {
 104         case wxCOL_WIDTH_DEFAULT:
 105             return wxDVC_DEFAULT_WIDTH;
 106
 107         case wxCOL_WIDTH_AUTOSIZE:
 108             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 109             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 110
 111         default:
 112             return m_width;
 113     }
 114 }
 115
 116 void wxDataViewColumn::UpdateDisplay()
 117 {
 118     if (m_owner)
 119     {
 120         int idx = m_owner->GetColumnIndex( this );
 121         m_owner->OnColumnChange( idx );
 122     }
 123 }
 124
 125 //-----------------------------------------------------------------------------
 126 // wxDataViewHeaderWindow
 127 //-----------------------------------------------------------------------------
 128
 129 class wxDataViewHeaderWindow : public wxHeaderCtrl
 130 {
 131 public:
 132     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 133         : wxHeaderCtrl(parent)
 134     {
 135     }
 136
 137     wxDataViewCtrl *GetOwner() const
 138         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 139
 140 protected:
 141     // implement/override wxHeaderCtrl functions by forwarding them to the main
 142     // control
 143     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 144     {
 145         return *(GetOwner()->GetColumn(idx));
 146     }
 147
 148     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 149     {
 150         wxDataViewCtrl * const owner = GetOwner();
 151
 152         int widthContents = owner->GetBestColumnWidth(idx);
 153         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 154         owner->OnColumnChange(idx);
 155
 156         return true;
 157     }
 158
 159 private:
 160     bool SendEvent(wxEventType type, unsigned int n)
 161     {
 162         wxDataViewCtrl * const owner = GetOwner();
 163         wxDataViewEvent event(type, owner->GetId());
 164
 165         event.SetEventObject(owner);
 166         event.SetColumn(n);
 167         event.SetDataViewColumn(owner->GetColumn(n));
 168         event.SetModel(owner->GetModel());
 169
 170         // for events created by wxDataViewHeaderWindow the
 171         // row / value fields are not valid
 172         return owner->GetEventHandler()->ProcessEvent(event);
 173     }
 174
 175     void OnClick(wxHeaderCtrlEvent& event)
 176     {
 177         const unsigned idx = event.GetColumn();
 178
 179         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 180             return;
 181
 182         // default handling for the column click is to sort by this column or
 183         // toggle its sort order
 184         wxDataViewCtrl * const owner = GetOwner();
 185         wxDataViewColumn * const col = owner->GetColumn(idx);
 186         if ( !col->IsSortable() )
 187         {
 188             // no default handling for non-sortable columns
 189             event.Skip();
 190             return;
 191         }
 192
 193         if ( col->IsSortKey() )
 194         {
 195             // already using this column for sorting, just change the order
 196             col->ToggleSortOrder();
 197         }
 198         else // not using this column for sorting yet
 199         {
 200             // first unset the old sort column if any
 201             int oldSortKey = owner->GetSortingColumnIndex();
 202             if ( oldSortKey != wxNOT_FOUND )
 203             {
 204                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 205                 owner->OnColumnChange(oldSortKey);
 206             }
 207
 208             owner->SetSortingColumnIndex(idx);
 209             col->SetAsSortKey();
 210         }
 211
 212         wxDataViewModel * const model = owner->GetModel();
 213         if ( model )
 214             model->Resort();
 215
 216         owner->OnColumnChange(idx);
 217     }
 218
 219     void OnRClick(wxHeaderCtrlEvent& event)
 220     {
 221         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 222                         event.GetColumn()) )
 223             event.Skip();
 224     }
 225
 226     void OnResize(wxHeaderCtrlEvent& event)
 227     {
 228         wxDataViewCtrl * const owner = GetOwner();
 229
 230         const unsigned col = event.GetColumn();
 231         owner->GetColumn(col)->SetWidth(event.GetWidth());
 232         GetOwner()->OnColumnChange(col);
 233     }
 234
 235     void OnEndReorder(wxHeaderCtrlEvent& event)
 236     {
 237         wxDataViewCtrl * const owner = GetOwner();
 238         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 239                         event.GetNewOrder());
 240     }
 241
 242     DECLARE_EVENT_TABLE()
 243     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 244 };
 245
 246 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 247     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 248     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 249
 250     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 251     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 252
 253     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 254 END_EVENT_TABLE()
 255
 256 //-----------------------------------------------------------------------------
 257 // wxDataViewRenameTimer
 258 //-----------------------------------------------------------------------------
 259
 260 class wxDataViewRenameTimer: public wxTimer
 261 {
 262 private:
 263     wxDataViewMainWindow *m_owner;
 264
 265 public:
 266     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 267     void Notify();
 268 };
 269
 270 //-----------------------------------------------------------------------------
 271 // wxDataViewTreeNode
 272 //-----------------------------------------------------------------------------
 273
 274 class wxDataViewTreeNode;
 275 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 276 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 277
 278 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 279                                            wxDataViewTreeNode ** node2);
 280 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 281
 282 class wxDataViewTreeNode
 283 {
 284 public:
 285     wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
 286     {
 287         m_parent = parent;
 288         if (!parent)
 289             m_open = true;
 290         else
 291             m_open = false;
 292         m_hasChildren = false;
 293         m_subTreeCount  = 0;
 294     }
 295
 296     ~wxDataViewTreeNode()
 297     {
 298     }
 299
 300     wxDataViewTreeNode * GetParent() const { return m_parent; }
 301     void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
 302     wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
 303     wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
 304
 305     void AddNode( wxDataViewTreeNode * node )
 306     {
 307         m_leaves.Add( node->GetItem().GetID() );
 308         if (g_column >= -1)
 309             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 310         m_nodes.Add( node );
 311         if (g_column >= -1)
 312             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 313     }
 314     void AddLeaf( void * leaf )
 315     {
 316         m_leaves.Add( leaf );
 317         if (g_column >= -1)
 318             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 319     }
 320
 321     wxDataViewItem & GetItem() { return m_item; }
 322     const wxDataViewItem & GetItem() const { return m_item; }
 323     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 324
 325     unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
 326     unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
 327     int GetIndentLevel() const
 328     {
 329         int ret = 0;
 330         const wxDataViewTreeNode * node = this;
 331         while( node->GetParent()->GetParent() != NULL )
 332         {
 333             node = node->GetParent();
 334             ret ++;
 335         }
 336         return ret;
 337     }
 338
 339     bool IsOpen() const
 340     {
 341         return m_open;
 342     }
 343
 344     void ToggleOpen()
 345     {
 346         int len = m_nodes.GetCount();
 347         int sum = 0;
 348         for ( int i = 0;i < len; i ++)
 349             sum += m_nodes[i]->GetSubTreeCount();
 350
 351         sum += m_leaves.GetCount();
 352         if (m_open)
 353         {
 354             ChangeSubTreeCount(-sum);
 355             m_open = !m_open;
 356         }
 357         else
 358         {
 359             m_open = !m_open;
 360             ChangeSubTreeCount(sum);
 361         }
 362     }
 363     bool HasChildren() const { return m_hasChildren; }
 364     void SetHasChildren( bool has ){ m_hasChildren = has; }
 365
 366     void SetSubTreeCount( int num ) { m_subTreeCount = num; }
 367     int GetSubTreeCount() const { return m_subTreeCount; }
 368     void ChangeSubTreeCount( int num )
 369     {
 370         if( !m_open )
 371             return;
 372         m_subTreeCount += num;
 373         if( m_parent )
 374             m_parent->ChangeSubTreeCount(num);
 375     }
 376
 377     void Resort()
 378     {
 379         if (g_column >= -1)
 380         {
 381             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 382             int len = m_nodes.GetCount();
 383             for (int i = 0; i < len; i ++)
 384                 m_nodes[i]->Resort();
 385             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 386         }
 387     }
 388
 389 private:
 390     wxDataViewTreeNode  *m_parent;
 391     wxDataViewTreeNodes  m_nodes;
 392     wxDataViewTreeLeaves m_leaves;
 393     wxDataViewItem       m_item;
 394     bool                 m_open;
 395     bool                 m_hasChildren;
 396     int                  m_subTreeCount;
 397 };
 398
 399 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 400                                            wxDataViewTreeNode ** node2)
 401 {
 402     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 403 }
 404
 405 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 406 {
 407     return g_model->Compare( *id1, *id2, g_column, g_asending );
 408 }
 409
 410
 411 //-----------------------------------------------------------------------------
 412 // wxDataViewMainWindow
 413 //-----------------------------------------------------------------------------
 414
 415 WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,
 416                                             WXDLLIMPEXP_ADV);
 417 WX_DECLARE_LIST(wxDataViewItem, ItemList);
 418 WX_DEFINE_LIST(ItemList)
 419
 420 class wxDataViewMainWindow: public wxWindow
 421 {
 422 public:
 423     wxDataViewMainWindow( wxDataViewCtrl *parent,
 424                             wxWindowID id,
 425                             const wxPoint &pos = wxDefaultPosition,
 426                             const wxSize &size = wxDefaultSize,
 427                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 428     virtual ~wxDataViewMainWindow();
 429
 430     bool IsList() const { return GetOwner()->GetModel()->IsListModel(); }
 431     bool IsVirtualList() const { return m_root == NULL; }
 432
 433     // notifications from wxDataViewModel
 434     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 435     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 436     bool ItemChanged( const wxDataViewItem &item );
 437     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 438     bool Cleared();
 439     void Resort()
 440     {
 441         if (!IsVirtualList())
 442         {
 443             SortPrepare();
 444             m_root->Resort();
 445         }
 446         UpdateDisplay();
 447     }
 448
 449     void SortPrepare()
 450     {
 451         g_model = GetOwner()->GetModel();
 452         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 453         if( !col )
 454         {
 455             if (g_model->HasDefaultCompare())
 456                 g_column = -1;
 457             else
 458                 g_column = -2;
 459
 460             g_asending = true;
 461             return;
 462         }
 463         g_column = col->GetModelColumn();
 464         g_asending = col->IsSortOrderAscending();
 465     }
 466
 467     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 468     wxDataViewCtrl *GetOwner() { return m_owner; }
 469     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 470
 471 #if wxUSE_DRAG_AND_DROP
 472     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 473 #endif // wxUSE_DRAG_AND_DROP
 474     void OnPaint( wxPaintEvent &event );
 475     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 476     void OnChar( wxKeyEvent &event );
 477     void OnMouse( wxMouseEvent &event );
 478     void OnSetFocus( wxFocusEvent &event );
 479     void OnKillFocus( wxFocusEvent &event );
 480
 481     void UpdateDisplay();
 482     void RecalculateDisplay();
 483     void OnInternalIdle();
 484
 485     void OnRenameTimer();
 486
 487     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 488     void ScrollTo( int rows, int column );
 489
 490     unsigned GetCurrentRow() const { return m_currentRow; }
 491     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 492     void ChangeCurrentRow( unsigned int row );
 493
 494     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 495     bool IsEmpty() { return GetRowCount() == 0; }
 496
 497     int GetCountPerPage() const;
 498     int GetEndOfLastCol() const;
 499     unsigned int GetFirstVisibleRow() const;
 500
 501     // I change this method to un const because in the tree view,
 502     // the displaying number of the tree are changing along with the
 503     // expanding/collapsing of the tree nodes
 504     unsigned int GetLastVisibleRow();
 505     unsigned int GetRowCount();
 506
 507     wxDataViewItem GetSelection() const;
 508     wxDataViewSelection GetSelections(){ return m_selection; }
 509     void SetSelections( const wxDataViewSelection & sel )
 510         { m_selection = sel; UpdateDisplay(); }
 511     void Select( const wxArrayInt& aSelections );
 512     void SelectAllRows( bool on );
 513     void SelectRow( unsigned int row, bool on );
 514     void SelectRows( unsigned int from, unsigned int to, bool on );
 515     void ReverseRowSelection( unsigned int row );
 516     bool IsRowSelected( unsigned int row );
 517     void SendSelectionChangedEvent( const wxDataViewItem& item);
 518
 519     void RefreshRow( unsigned int row );
 520     void RefreshRows( unsigned int from, unsigned int to );
 521     void RefreshRowsAfter( unsigned int firstRow );
 522
 523     // returns the colour to be used for drawing the rules
 524     wxColour GetRuleColour() const
 525     {
 526         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 527     }
 528
 529     wxRect GetLineRect( unsigned int row ) const;
 530
 531     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 532     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 533     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 534
 535     // Some useful functions for row and item mapping
 536     wxDataViewItem GetItemByRow( unsigned int row ) const;
 537     int GetRowByItem( const wxDataViewItem & item ) const;
 538
 539     // Methods for building the mapping tree
 540     void BuildTree( wxDataViewModel  * model );
 541     void DestroyTree();
 542     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 543     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 544
 545     void Expand( unsigned int row );
 546     void Collapse( unsigned int row );
 547     bool IsExpanded( unsigned int row ) const;
 548     bool HasChildren( unsigned int row ) const;
 549
 550 #if wxUSE_DRAG_AND_DROP
 551     bool EnableDragSource( const wxDataFormat &format );
 552     bool EnableDropTarget( const wxDataFormat &format );
 553
 554     void RemoveDropHint();
 555     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 556     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 557     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 558     void OnLeave();
 559 #endif // wxUSE_DRAG_AND_DROP
 560
 561 private:
 562     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 563     // We did not need this temporarily
 564     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 565
 566     int RecalculateCount();
 567
 568     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 569
 570     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 571
 572 private:
 573     wxDataViewCtrl             *m_owner;
 574     int                         m_lineHeight;
 575     bool                        m_dirty;
 576
 577     wxDataViewColumn           *m_currentCol;
 578     unsigned int                m_currentRow;
 579     wxDataViewSelection         m_selection;
 580
 581     wxDataViewRenameTimer      *m_renameTimer;
 582     bool                        m_lastOnSame;
 583
 584     bool                        m_hasFocus;
 585
 586 #if wxUSE_DRAG_AND_DROP
 587     int                         m_dragCount;
 588     wxPoint                     m_dragStart;
 589
 590     bool                        m_dragEnabled;
 591     wxDataFormat                m_dragFormat;
 592
 593     bool                        m_dropEnabled;
 594     wxDataFormat                m_dropFormat;
 595     bool                        m_dropHint;
 596     unsigned int                m_dropHintLine;
 597 #endif // wxUSE_DRAG_AND_DROP
 598
 599     // for double click logic
 600     unsigned int m_lineLastClicked,
 601         m_lineBeforeLastClicked,
 602         m_lineSelectSingleOnUp;
 603
 604     // the pen used to draw horiz/vertical rules
 605     wxPen m_penRule;
 606
 607     // the pen used to draw the expander and the lines
 608     wxPen m_penExpander;
 609
 610     // This is the tree structure of the model
 611     wxDataViewTreeNode * m_root;
 612     int m_count;
 613
 614     // This is the tree node under the cursor
 615     wxDataViewTreeNode * m_underMouse;
 616
 617 private:
 618     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 619     DECLARE_EVENT_TABLE()
 620 };
 621
 622 // ---------------------------------------------------------
 623 // wxGenericDataViewModelNotifier
 624 // ---------------------------------------------------------
 625
 626 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 627 {
 628 public:
 629     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 630         { m_mainWindow = mainWindow; }
 631
 632     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 633         { return m_mainWindow->ItemAdded( parent , item ); }
 634     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 635         { return m_mainWindow->ItemDeleted( parent, item ); }
 636     virtual bool ItemChanged( const wxDataViewItem & item )
 637         { return m_mainWindow->ItemChanged(item);  }
 638     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 639         { return m_mainWindow->ValueChanged( item, col ); }
 640     virtual bool Cleared()
 641         { return m_mainWindow->Cleared(); }
 642     virtual void Resort()
 643         { m_mainWindow->Resort(); }
 644
 645     wxDataViewMainWindow    *m_mainWindow;
 646 };
 647
 648 // ---------------------------------------------------------
 649 // wxDataViewRenderer
 650 // ---------------------------------------------------------
 651
 652 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 653
 654 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 655                                         wxDataViewCellMode mode,
 656                                         int align) :
 657     wxDataViewCustomRendererBase( varianttype, mode, align )
 658 {
 659     m_align = align;
 660     m_mode = mode;
 661     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 662     m_dc = NULL;
 663 }
 664
 665 wxDataViewRenderer::~wxDataViewRenderer()
 666 {
 667     delete m_dc;
 668 }
 669
 670 wxDC *wxDataViewRenderer::GetDC()
 671 {
 672     if (m_dc == NULL)
 673     {
 674         if (GetOwner() == NULL)
 675             return NULL;
 676         if (GetOwner()->GetOwner() == NULL)
 677             return NULL;
 678         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 679     }
 680
 681     return m_dc;
 682 }
 683
 684 void wxDataViewRenderer::SetAlignment( int align )
 685 {
 686     m_align=align;
 687 }
 688
 689 int wxDataViewRenderer::GetAlignment() const
 690 {
 691     return m_align;
 692 }
 693
 694 // ---------------------------------------------------------
 695 // wxDataViewCustomRenderer
 696 // ---------------------------------------------------------
 697
 698 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 699
 700 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 701                         wxDataViewCellMode mode, int align ) :
 702     wxDataViewRenderer( varianttype, mode, align )
 703 {
 704 }
 705
 706 // ---------------------------------------------------------
 707 // wxDataViewTextRenderer
 708 // ---------------------------------------------------------
 709
 710 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 711
 712 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 713                                                 wxDataViewCellMode mode, int align ) :
 714     wxDataViewRenderer( varianttype, mode, align )
 715 {
 716 }
 717
 718 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 719 {
 720     m_text = value.GetString();
 721
 722     return true;
 723 }
 724
 725 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 726 {
 727     return false;
 728 }
 729
 730 bool wxDataViewTextRenderer::HasEditorCtrl() const
 731 {
 732     return true;
 733 }
 734
 735 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 736         wxRect labelRect, const wxVariant &value )
 737 {
 738     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 739                                        wxPoint(labelRect.x,labelRect.y),
 740                                        wxSize(labelRect.width,labelRect.height) );
 741
 742     // select the text in the control an place the cursor at the end
 743     ctrl->SetInsertionPointEnd();
 744     ctrl->SelectAll();
 745
 746     return ctrl;
 747 }
 748
 749 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 750 {
 751     wxTextCtrl *text = (wxTextCtrl*) editor;
 752     value = text->GetValue();
 753     return true;
 754 }
 755
 756 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 757 {
 758     RenderText(m_text, 0, rect, dc, state);
 759     return true;
 760 }
 761
 762 wxSize wxDataViewTextRenderer::GetSize() const
 763 {
 764     if (!m_text.empty())
 765         return GetTextExtent(m_text);
 766     else
 767         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 768 }
 769
 770 // ---------------------------------------------------------
 771 // wxDataViewBitmapRenderer
 772 // ---------------------------------------------------------
 773
 774 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 775
 776 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 777                                                     wxDataViewCellMode mode, int align ) :
 778     wxDataViewRenderer( varianttype, mode, align )
 779 {
 780 }
 781
 782 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 783 {
 784     if (value.GetType() == wxT("wxBitmap"))
 785         m_bitmap << value;
 786     if (value.GetType() == wxT("wxIcon"))
 787         m_icon << value;
 788
 789     return true;
 790 }
 791
 792 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 793 {
 794     return false;
 795 }
 796
 797 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 798 {
 799     if (m_bitmap.Ok())
 800         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 801     else if (m_icon.Ok())
 802         dc->DrawIcon( m_icon, cell.x, cell.y );
 803
 804     return true;
 805 }
 806
 807 wxSize wxDataViewBitmapRenderer::GetSize() const
 808 {
 809     if (m_bitmap.Ok())
 810         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 811     else if (m_icon.Ok())
 812         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 813
 814     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 815 }
 816
 817 // ---------------------------------------------------------
 818 // wxDataViewToggleRenderer
 819 // ---------------------------------------------------------
 820
 821 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 822
 823 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 824                         wxDataViewCellMode mode, int align ) :
 825     wxDataViewRenderer( varianttype, mode, align )
 826 {
 827     m_toggle = false;
 828 }
 829
 830 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 831 {
 832     m_toggle = value.GetBool();
 833
 834     return true;
 835 }
 836
 837 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 838 {
 839     return false;
 840 }
 841
 842 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 843 {
 844     int flags = 0;
 845     if (m_toggle)
 846         flags |= wxCONTROL_CHECKED;
 847     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
 848         GetEnabled() == false)
 849         flags |= wxCONTROL_DISABLED;
 850
 851     // check boxes we draw must always have the same, standard size (if it's
 852     // bigger than the cell size the checkbox will be truncated because the
 853     // caller had set the clipping rectangle to prevent us from drawing outside
 854     // the cell)
 855     cell.SetSize(GetSize());
 856
 857     wxRendererNative::Get().DrawCheckBox(
 858             GetOwner()->GetOwner(),
 859             *dc,
 860             cell,
 861             flags );
 862
 863     return true;
 864 }
 865
 866 bool wxDataViewToggleRenderer::WXOnLeftClick(const wxPoint& cursor,
 867                                              const wxRect& WXUNUSED(cell),
 868                                              wxDataViewModel *model,
 869                                              const wxDataViewItem& item,
 870                                              unsigned int col)
 871 {
 872     // only react to clicks directly on the checkbox, not elsewhere in the same cell:
 873     if (!wxRect(GetSize()).Contains(cursor))
 874         return false;
 875
 876     if (model->IsEnabled(item, col))
 877     {
 878         model->ChangeValue(!m_toggle, item, col);
 879         return true;
 880     }
 881
 882     return false;
 883 }
 884
 885 wxSize wxDataViewToggleRenderer::GetSize() const
 886 {
 887     // the window parameter is not used by GetCheckBoxSize() so it's
 888     // safe to pass NULL
 889     return wxRendererNative::Get().GetCheckBoxSize(NULL);
 890 }
 891
 892 // ---------------------------------------------------------
 893 // wxDataViewProgressRenderer
 894 // ---------------------------------------------------------
 895
 896 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
 897
 898 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 899     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 900     wxDataViewRenderer( varianttype, mode, align )
 901 {
 902     m_label = label;
 903     m_value = 0;
 904 }
 905
 906 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 907 {
 908     m_value = (long) value;
 909
 910     if (m_value < 0) m_value = 0;
 911     if (m_value > 100) m_value = 100;
 912
 913     return true;
 914 }
 915
 916 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 917 {
 918     value = (long) m_value;
 919     return true;
 920 }
 921
 922 bool
 923 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
 924 {
 925     // deflate the rect to leave a small border between bars in adjacent rows
 926     wxRect bar = rect.Deflate(0, 1);
 927
 928     dc->SetBrush( *wxTRANSPARENT_BRUSH );
 929     dc->SetPen( *wxBLACK_PEN );
 930     dc->DrawRectangle( bar );
 931
 932     bar.width = (int)(bar.width * m_value / 100.);
 933     dc->SetPen( *wxTRANSPARENT_PEN );
 934
 935     const wxDataViewItemAttr& attr = GetAttr();
 936     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
 937                                   : *wxBLUE_BRUSH );
 938     dc->DrawRectangle( bar );
 939
 940     return true;
 941 }
 942
 943 wxSize wxDataViewProgressRenderer::GetSize() const
 944 {
 945     return wxSize(40,12);
 946 }
 947
 948 // ---------------------------------------------------------
 949 // wxDataViewDateRenderer
 950 // ---------------------------------------------------------
 951
 952 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
 953
 954 #if wxUSE_DATE_RENDERER_POPUP
 955
 956 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 957 {
 958 public:
 959     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
 960         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
 961         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
 962         m_item( item )
 963     {
 964         m_model = model;
 965         m_col = col;
 966         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
 967         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
 968         sizer->Add( m_cal, 1, wxGROW );
 969         SetSizer( sizer );
 970         sizer->Fit( this );
 971     }
 972
 973     void OnCalendar( wxCalendarEvent &event );
 974
 975     wxCalendarCtrl      *m_cal;
 976     wxDataViewModel *m_model;
 977     unsigned int               m_col;
 978     const wxDataViewItem &   m_item;
 979
 980 protected:
 981     virtual void OnDismiss()
 982     {
 983     }
 984
 985 private:
 986     DECLARE_EVENT_TABLE()
 987 };
 988
 989 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
 990     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
 991 END_EVENT_TABLE()
 992
 993 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
 994 {
 995     m_model->ChangeValue( event.GetDate(), m_item, m_col );
 996     DismissAndNotify();
 997 }
 998
 999 #endif // wxUSE_DATE_RENDERER_POPUP
1000
1001 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewRenderer)
1002
1003 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
1004                         wxDataViewCellMode mode, int align ) :
1005     wxDataViewRenderer( varianttype, mode, align )
1006 {
1007 }
1008
1009 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
1010 {
1011     m_date = value.GetDateTime();
1012
1013     return true;
1014 }
1015
1016 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
1017 {
1018     value = m_date;
1019     return true;
1020 }
1021
1022 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
1023 {
1024     wxString tmp = m_date.FormatDate();
1025     RenderText( tmp, 0, cell, dc, state );
1026     return true;
1027 }
1028
1029 wxSize wxDataViewDateRenderer::GetSize() const
1030 {
1031     return GetTextExtent(m_date.FormatDate());
1032 }
1033
1034 bool wxDataViewDateRenderer::WXOnActivate(const wxRect& WXUNUSED(cell),
1035                                           wxDataViewModel *model,
1036                                           const wxDataViewItem& item,
1037                                           unsigned int col)
1038 {
1039     wxDateTime dtOld = m_date;
1040
1041 #if wxUSE_DATE_RENDERER_POPUP
1042     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
1043         GetOwner()->GetOwner()->GetParent(), &dtOld, model, item, col);
1044     wxPoint pos = wxGetMousePosition();
1045     popup->Move( pos );
1046     popup->Layout();
1047     popup->Popup( popup->m_cal );
1048 #else // !wxUSE_DATE_RENDERER_POPUP
1049     wxMessageBox(dtOld.Format());
1050 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
1051
1052     return true;
1053 }
1054
1055 // ---------------------------------------------------------
1056 // wxDataViewIconTextRenderer
1057 // ---------------------------------------------------------
1058
1059 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1060
1061 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1062 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1063     wxDataViewRenderer( varianttype, mode, align )
1064 {
1065     SetMode(mode);
1066     SetAlignment(align);
1067 }
1068
1069 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1070 {
1071     m_value << value;
1072     return true;
1073 }
1074
1075 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1076 {
1077     return false;
1078 }
1079
1080 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1081 {
1082     int xoffset = 0;
1083
1084     const wxIcon& icon = m_value.GetIcon();
1085     if ( icon.IsOk() )
1086     {
1087         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1088         xoffset = icon.GetWidth()+4;
1089     }
1090
1091     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1092
1093     return true;
1094 }
1095
1096 wxSize wxDataViewIconTextRenderer::GetSize() const
1097 {
1098     if (!m_value.GetText().empty())
1099     {
1100         wxSize size = GetTextExtent(m_value.GetText());
1101
1102         if (m_value.GetIcon().IsOk())
1103             size.x += m_value.GetIcon().GetWidth() + 4;
1104         return size;
1105     }
1106     return wxSize(80,20);
1107 }
1108
1109 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1110 {
1111     wxDataViewIconText iconText;
1112     iconText << value;
1113
1114     wxString text = iconText.GetText();
1115
1116     // adjust the label rect to take the width of the icon into account
1117     if (iconText.GetIcon().IsOk())
1118     {
1119         int w = iconText.GetIcon().GetWidth() + 4;
1120         labelRect.x += w;
1121         labelRect.width -= w;
1122     }
1123
1124     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1125                                        wxPoint(labelRect.x,labelRect.y),
1126                                        wxSize(labelRect.width,labelRect.height) );
1127
1128     // select the text in the control an place the cursor at the end
1129     ctrl->SetInsertionPointEnd();
1130     ctrl->SelectAll();
1131
1132     return ctrl;
1133 }
1134
1135 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1136 {
1137     wxTextCtrl *text = (wxTextCtrl*) editor;
1138
1139     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1140     value << iconText;
1141     return true;
1142 }
1143
1144 //-----------------------------------------------------------------------------
1145 // wxDataViewDropTarget
1146 //-----------------------------------------------------------------------------
1147
1148 #if wxUSE_DRAG_AND_DROP
1149
1150 class wxBitmapCanvas: public wxWindow
1151 {
1152 public:
1153     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1154     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1155     {
1156         m_bitmap = bitmap;
1157         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1158     }
1159
1160     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1161     {
1162         wxPaintDC dc(this);
1163         dc.DrawBitmap( m_bitmap, 0, 0);
1164     }
1165
1166     wxBitmap m_bitmap;
1167 };
1168
1169 class wxDataViewDropSource: public wxDropSource
1170 {
1171 public:
1172     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1173         wxDropSource( win )
1174     {
1175         m_win = win;
1176         m_row = row;
1177         m_hint = NULL;
1178     }
1179
1180     ~wxDataViewDropSource()
1181     {
1182         delete m_hint;
1183     }
1184
1185     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1186     {
1187         wxPoint pos = wxGetMousePosition();
1188
1189         if (!m_hint)
1190         {
1191             int liney = m_win->GetLineStart( m_row );
1192             int linex = 0;
1193             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1194             m_win->ClientToScreen( &linex, &liney );
1195             m_dist_x = pos.x - linex;
1196             m_dist_y = pos.y - liney;
1197
1198             int indent = 0;
1199             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1200             m_dist_x -= indent;
1201             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1202                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1203                                         ib.GetSize(),
1204                                         wxFRAME_TOOL_WINDOW |
1205                                         wxFRAME_FLOAT_ON_PARENT |
1206                                         wxFRAME_NO_TASKBAR |
1207                                         wxNO_BORDER );
1208             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1209             m_hint->Show();
1210         }
1211         else
1212         {
1213             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1214             m_hint->SetTransparent( 128 );
1215         }
1216
1217         return false;
1218     }
1219
1220     wxDataViewMainWindow   *m_win;
1221     unsigned int            m_row;
1222     wxFrame                *m_hint;
1223     int m_dist_x,m_dist_y;
1224 };
1225
1226
1227 class wxDataViewDropTarget: public wxDropTarget
1228 {
1229 public:
1230     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1231         wxDropTarget( obj )
1232     {
1233         m_win = win;
1234     }
1235
1236     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1237     {
1238         wxDataFormat format = GetMatchingPair();
1239         if (format == wxDF_INVALID)
1240             return wxDragNone;
1241         return m_win->OnDragOver( format, x, y, def);
1242     }
1243
1244     virtual bool OnDrop( wxCoord x, wxCoord y )
1245     {
1246         wxDataFormat format = GetMatchingPair();
1247         if (format == wxDF_INVALID)
1248             return false;
1249         return m_win->OnDrop( format, x, y );
1250     }
1251
1252     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1253     {
1254         wxDataFormat format = GetMatchingPair();
1255         if (format == wxDF_INVALID)
1256             return wxDragNone;
1257         if (!GetData())
1258             return wxDragNone;
1259         return m_win->OnData( format, x, y, def );
1260     }
1261
1262     virtual void OnLeave()
1263         { m_win->OnLeave(); }
1264
1265     wxDataViewMainWindow   *m_win;
1266 };
1267
1268 #endif // wxUSE_DRAG_AND_DROP
1269
1270 //-----------------------------------------------------------------------------
1271 // wxDataViewRenameTimer
1272 //-----------------------------------------------------------------------------
1273
1274 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1275 {
1276     m_owner = owner;
1277 }
1278
1279 void wxDataViewRenameTimer::Notify()
1280 {
1281     m_owner->OnRenameTimer();
1282 }
1283
1284 //-----------------------------------------------------------------------------
1285 // wxDataViewMainWindow
1286 //-----------------------------------------------------------------------------
1287
1288 // The tree building helper, declared firstly
1289 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1290                              wxDataViewTreeNode * node);
1291
1292 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1293 {
1294     if (row1 > row2) return 1;
1295     if (row1 == row2) return 0;
1296     return -1;
1297 }
1298
1299 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1300
1301 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1302     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1303     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1304     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1305     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1306     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1307 END_EVENT_TABLE()
1308
1309 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1310     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1311     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1312     m_selection( wxDataViewSelectionCmp )
1313
1314 {
1315     SetOwner( parent );
1316
1317     m_lastOnSame = false;
1318     m_renameTimer = new wxDataViewRenameTimer( this );
1319
1320     // TODO: user better initial values/nothing selected
1321     m_currentCol = NULL;
1322     m_currentRow = 0;
1323
1324     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1325
1326 #if wxUSE_DRAG_AND_DROP
1327     m_dragCount = 0;
1328     m_dragStart = wxPoint(0,0);
1329
1330     m_dragEnabled = false;
1331     m_dropEnabled = false;
1332     m_dropHint = false;
1333     m_dropHintLine = (unsigned int) -1;
1334 #endif // wxUSE_DRAG_AND_DROP
1335
1336     m_lineLastClicked = (unsigned int) -1;
1337     m_lineBeforeLastClicked = (unsigned int) -1;
1338     m_lineSelectSingleOnUp = (unsigned int) -1;
1339
1340     m_hasFocus = false;
1341
1342     SetBackgroundColour( *wxWHITE );
1343
1344     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1345
1346     m_penRule = wxPen(GetRuleColour());
1347
1348     // compose a pen whichcan draw black lines
1349     // TODO: maybe there is something system colour to use
1350     m_penExpander = wxPen(wxColour(0,0,0));
1351
1352     m_root = new wxDataViewTreeNode( NULL );
1353     m_root->SetHasChildren(true);
1354
1355     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1356     m_count = -1;
1357     m_underMouse = NULL;
1358     UpdateDisplay();
1359 }
1360
1361 wxDataViewMainWindow::~wxDataViewMainWindow()
1362 {
1363     DestroyTree();
1364     delete m_renameTimer;
1365 }
1366
1367
1368 #if wxUSE_DRAG_AND_DROP
1369 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1370 {
1371     m_dragFormat = format;
1372     m_dragEnabled = format != wxDF_INVALID;
1373
1374     return true;
1375 }
1376
1377 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1378 {
1379     m_dropFormat = format;
1380     m_dropEnabled = format != wxDF_INVALID;
1381
1382     if (m_dropEnabled)
1383         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1384
1385     return true;
1386 }
1387
1388 void wxDataViewMainWindow::RemoveDropHint()
1389 {
1390     if (m_dropHint)
1391     {
1392             m_dropHint = false;
1393             RefreshRow( m_dropHintLine );
1394             m_dropHintLine = (unsigned int) -1;
1395     }
1396 }
1397
1398 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1399                                                wxCoord y, wxDragResult def )
1400 {
1401     int xx = x;
1402     int yy = y;
1403     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1404     unsigned int row = GetLineAt( yy );
1405
1406     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1407     {
1408         RemoveDropHint();
1409         return wxDragNone;
1410     }
1411
1412     wxDataViewItem item = GetItemByRow( row );
1413
1414     wxDataViewModel *model = GetOwner()->GetModel();
1415
1416     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1417     event.SetEventObject( m_owner );
1418     event.SetItem( item );
1419     event.SetModel( model );
1420     event.SetDataFormat( format );
1421     if (!m_owner->HandleWindowEvent( event ))
1422     {
1423         RemoveDropHint();
1424         return wxDragNone;
1425     }
1426
1427     if (!event.IsAllowed())
1428     {
1429         RemoveDropHint();
1430         return wxDragNone;
1431     }
1432
1433
1434     if (m_dropHint && (row != m_dropHintLine))
1435         RefreshRow( m_dropHintLine );
1436     m_dropHint = true;
1437     m_dropHintLine = row;
1438     RefreshRow( row );
1439
1440     return def;
1441 }
1442
1443 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1444 {
1445     RemoveDropHint();
1446
1447     int xx = x;
1448     int yy = y;
1449     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1450     unsigned int row = GetLineAt( yy );
1451
1452     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1453         return false;
1454
1455     wxDataViewItem item = GetItemByRow( row );
1456
1457     wxDataViewModel *model = GetOwner()->GetModel();
1458
1459     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1460     event.SetEventObject( m_owner );
1461     event.SetItem( item );
1462     event.SetModel( model );
1463     event.SetDataFormat( format );
1464     if (!m_owner->HandleWindowEvent( event ))
1465         return false;
1466
1467     if (!event.IsAllowed())
1468         return false;
1469
1470     return true;
1471 }
1472
1473 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1474                                            wxDragResult def )
1475 {
1476     int xx = x;
1477     int yy = y;
1478     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1479     unsigned int row = GetLineAt( yy );
1480
1481     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1482         return wxDragNone;
1483
1484     wxDataViewItem item = GetItemByRow( row );
1485
1486     wxDataViewModel *model = GetOwner()->GetModel();
1487
1488     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1489
1490     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1491     event.SetEventObject( m_owner );
1492     event.SetItem( item );
1493     event.SetModel( model );
1494     event.SetDataFormat( format );
1495     event.SetDataSize( obj->GetSize() );
1496     event.SetDataBuffer( obj->GetData() );
1497     if (!m_owner->HandleWindowEvent( event ))
1498         return wxDragNone;
1499
1500     if (!event.IsAllowed())
1501         return wxDragNone;
1502
1503     return def;
1504 }
1505
1506 void wxDataViewMainWindow::OnLeave()
1507 {
1508     RemoveDropHint();
1509 }
1510
1511 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1512 {
1513     int height = GetLineHeight( row );
1514     int width = 0;
1515     unsigned int cols = GetOwner()->GetColumnCount();
1516     unsigned int col;
1517     for (col = 0; col < cols; col++)
1518     {
1519         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1520         if (column->IsHidden())
1521             continue;      // skip it!
1522         width += column->GetWidth();
1523     }
1524
1525     indent = 0;
1526     if (!IsList())
1527     {
1528         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1529         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1530         indent = indent + m_lineHeight;
1531             // try to use the m_lineHeight as the expander space
1532
1533         if(!node->HasChildren())
1534             delete node;
1535     }
1536     width -= indent;
1537
1538     wxBitmap bitmap( width, height );
1539     wxMemoryDC dc( bitmap );
1540     dc.SetFont( GetFont() );
1541     dc.SetPen( *wxBLACK_PEN );
1542     dc.SetBrush( *wxWHITE_BRUSH );
1543     dc.DrawRectangle( 0,0,width,height );
1544
1545     wxDataViewModel *model = m_owner->GetModel();
1546
1547     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1548     if (!expander)
1549     {
1550         // TODO-RTL: last column for RTL support
1551         expander = GetOwner()->GetColumnAt( 0 );
1552         GetOwner()->SetExpanderColumn(expander);
1553     }
1554
1555
1556     int x = 0;
1557     for (col = 0; col < cols; col++)
1558     {
1559         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1560         wxDataViewRenderer *cell = column->GetRenderer();
1561
1562         if (column->IsHidden())
1563             continue;       // skip it!
1564
1565         width = column->GetWidth();
1566
1567         if (column == expander)
1568             width -= indent;
1569
1570         wxDataViewItem item = GetItemByRow( row );
1571         cell->PrepareForItem(model, item, column->GetModelColumn());
1572
1573         wxRect item_rect(x, 0, width, height);
1574         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1575
1576         // dc.SetClippingRegion( item_rect );
1577         cell->WXCallRender(item_rect, &dc, 0);
1578         // dc.DestroyClippingRegion();
1579
1580         x += width;
1581     }
1582
1583     return bitmap;
1584 }
1585
1586 #endif // wxUSE_DRAG_AND_DROP
1587
1588
1589 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1590 {
1591     wxDataViewModel *model = GetOwner()->GetModel();
1592     wxAutoBufferedPaintDC dc( this );
1593
1594 #ifdef __WXMSW__
1595     dc.SetBrush(GetOwner()->GetBackgroundColour());
1596     dc.SetPen( *wxTRANSPARENT_PEN );
1597     dc.DrawRectangle(GetClientSize());
1598 #endif
1599
1600     if ( IsEmpty() )
1601     {
1602         // No items to draw.
1603         return;
1604     }
1605
1606     // prepare the DC
1607     GetOwner()->PrepareDC( dc );
1608     dc.SetFont( GetFont() );
1609
1610     wxRect update = GetUpdateRegion().GetBox();
1611     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1612
1613     // compute which items needs to be redrawn
1614     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1615     unsigned int item_count =
1616         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1617             (int)(GetRowCount( ) - item_start));
1618     unsigned int item_last = item_start + item_count;
1619
1620     // Send the event to wxDataViewCtrl itself.
1621     wxWindow * const parent = GetParent();
1622     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1623     cache_event.SetEventObject(parent);
1624     cache_event.SetCache(item_start, item_last - 1);
1625     parent->ProcessWindowEvent(cache_event);
1626
1627     // compute which columns needs to be redrawn
1628     unsigned int cols = GetOwner()->GetColumnCount();
1629     if ( !cols )
1630     {
1631         // we assume that we have at least one column below and painting an
1632         // empty control is unnecessary anyhow
1633         return;
1634     }
1635
1636     unsigned int col_start = 0;
1637     unsigned int x_start;
1638     for (x_start = 0; col_start < cols; col_start++)
1639     {
1640         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1641         if (col->IsHidden())
1642             continue;      // skip it!
1643
1644         unsigned int w = col->GetWidth();
1645         if (x_start+w >= (unsigned int)update.x)
1646             break;
1647
1648         x_start += w;
1649     }
1650
1651     unsigned int col_last = col_start;
1652     unsigned int x_last = x_start;
1653     for (; col_last < cols; col_last++)
1654     {
1655         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1656         if (col->IsHidden())
1657             continue;      // skip it!
1658
1659         if (x_last > (unsigned int)update.GetRight())
1660             break;
1661
1662         x_last += col->GetWidth();
1663     }
1664
1665     // Draw horizontal rules if required
1666     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1667     {
1668         dc.SetPen(m_penRule);
1669         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1670
1671         for (unsigned int i = item_start; i <= item_last; i++)
1672         {
1673             int y = GetLineStart( i );
1674             dc.DrawLine(x_start, y, x_last, y);
1675         }
1676     }
1677
1678     // Draw vertical rules if required
1679     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1680     {
1681         dc.SetPen(m_penRule);
1682         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1683
1684         // NB: Vertical rules are drawn in the last pixel of a column so that
1685         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1686         //     consistency with MSW native list control. There's no vertical
1687         //     rule at the most-left side of the control.
1688
1689         int x = x_start - 1;
1690         for (unsigned int i = col_start; i < col_last; i++)
1691         {
1692             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1693             if (col->IsHidden())
1694                 continue;       // skip it
1695
1696             x += col->GetWidth();
1697
1698             dc.DrawLine(x, GetLineStart( item_start ),
1699                         x, GetLineStart( item_last ) );
1700         }
1701     }
1702
1703     // redraw the background for the items which are selected/current
1704     for (unsigned int item = item_start; item < item_last; item++)
1705     {
1706         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1707         if (selected || item == m_currentRow)
1708         {
1709             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1710             if (item == m_currentRow)
1711                 flags |= wxCONTROL_CURRENT;
1712             if (m_hasFocus)
1713                 flags |= wxCONTROL_FOCUSED;
1714
1715             wxRect rect( x_start, GetLineStart( item ),
1716                          x_last - x_start, GetLineHeight( item ) );
1717             wxRendererNative::Get().DrawItemSelectionRect
1718                                 (
1719                                     this,
1720                                     dc,
1721                                     rect,
1722                                     flags
1723                                 );
1724         }
1725     }
1726
1727 #if wxUSE_DRAG_AND_DROP
1728     if (m_dropHint)
1729     {
1730         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1731                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1732         dc.SetPen( *wxBLACK_PEN );
1733         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1734         dc.DrawRectangle( rect );
1735     }
1736 #endif // wxUSE_DRAG_AND_DROP
1737
1738     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1739     if (!expander)
1740     {
1741         // TODO-RTL: last column for RTL support
1742         expander = GetOwner()->GetColumnAt( 0 );
1743         GetOwner()->SetExpanderColumn(expander);
1744     }
1745
1746     // redraw all cells for all rows which must be repainted and all columns
1747     wxRect cell_rect;
1748     cell_rect.x = x_start;
1749     for (unsigned int i = col_start; i < col_last; i++)
1750     {
1751         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1752         wxDataViewRenderer *cell = col->GetRenderer();
1753         cell_rect.width = col->GetWidth();
1754
1755         if ( col->IsHidden() || cell_rect.width <= 0 )
1756             continue;       // skip it!
1757
1758         for (unsigned int item = item_start; item < item_last; item++)
1759         {
1760             // get the cell value and set it into the renderer
1761             wxDataViewTreeNode *node = NULL;
1762             wxDataViewItem dataitem;
1763
1764             if (!IsVirtualList())
1765             {
1766                 node = GetTreeNodeByRow(item);
1767                 if( node == NULL )
1768                     continue;
1769
1770                 dataitem = node->GetItem();
1771
1772                 if ((i > 0) && model->IsContainer(dataitem) &&
1773                     !model->HasContainerColumns(dataitem))
1774                     continue;
1775             }
1776             else
1777             {
1778                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1779             }
1780
1781             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1782
1783             // update cell_rect
1784             cell_rect.y = GetLineStart( item );
1785             cell_rect.height = GetLineHeight( item );
1786
1787             // deal with the expander
1788             int indent = 0;
1789             if ((!IsList()) && (col == expander))
1790             {
1791                 // Calculate the indent first
1792                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1793
1794                 // we reserve m_lineHeight of horizontal space for the expander
1795                 // but leave EXPANDER_MARGIN around the expander itself
1796                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1797
1798                 indent += m_lineHeight;
1799
1800                 // draw expander if needed and visible
1801                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1802                 {
1803                     dc.SetPen( m_penExpander );
1804                     dc.SetBrush( wxNullBrush );
1805
1806                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1807                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1808                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1809
1810                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1811
1812                     int flag = 0;
1813                     if ( m_underMouse == node )
1814                         flag |= wxCONTROL_CURRENT;
1815                     if ( node->IsOpen() )
1816                         flag |= wxCONTROL_EXPANDED;
1817
1818                     // ensure that we don't overflow the cell (which might
1819                     // happen if the column is very narrow)
1820                     wxDCClipper clip(dc, cell_rect);
1821
1822                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1823                 }
1824
1825                 // force the expander column to left-center align
1826                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1827             }
1828             if (node && !node->HasChildren())
1829             {
1830                 // Yes, if the node does not have any child, it must be a leaf which
1831                 // mean that it is a temporarily created by GetTreeNodeByRow
1832                 wxDELETE(node);
1833             }
1834
1835             wxRect item_rect = cell_rect;
1836             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1837
1838             // account for the tree indent (harmless if we're not indented)
1839             item_rect.x += indent;
1840             item_rect.width -= indent;
1841
1842             if ( item_rect.width <= 0 )
1843                 continue;
1844
1845             int state = 0;
1846             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1847                 state |= wxDATAVIEW_CELL_SELECTED;
1848
1849             // TODO: it would be much more efficient to create a clipping
1850             //       region for the entire column being rendered (in the OnPaint
1851             //       of wxDataViewMainWindow) instead of a single clip region for
1852             //       each cell. However it would mean that each renderer should
1853             //       respect the given wxRect's top & bottom coords, eventually
1854             //       violating only the left & right coords - however the user can
1855             //       make its own renderer and thus we cannot be sure of that.
1856             wxDCClipper clip(dc, item_rect);
1857
1858             cell->WXCallRender(item_rect, &dc, state);
1859         }
1860
1861         cell_rect.x += cell_rect.width;
1862     }
1863 }
1864
1865 void wxDataViewMainWindow::OnRenameTimer()
1866 {
1867     // We have to call this here because changes may just have
1868     // been made and no screen update taken place.
1869     if ( m_dirty )
1870     {
1871         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1872         //       (needs to be tested!)
1873         wxSafeYield();
1874     }
1875
1876     wxDataViewItem item = GetItemByRow( m_currentRow );
1877
1878     wxRect labelRect = GetItemRect(item, m_currentCol);
1879
1880     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1881 }
1882
1883 //-----------------------------------------------------------------------------
1884 // Helper class for do operation on the tree node
1885 //-----------------------------------------------------------------------------
1886 class DoJob
1887 {
1888 public:
1889     DoJob() { }
1890     virtual ~DoJob() { }
1891
1892     // The return value control how the tree-walker tranverse the tree
1893     // 0: Job done, stop tranverse and return
1894     // 1: Ignore the current node's subtree and continue
1895     // 2: Job not done, continue
1896     enum  { OK = 0 , IGR = 1, CONT = 2 };
1897     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1898     virtual int operator() ( void * n ) = 0;
1899 };
1900
1901 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1902 {
1903     if( node==NULL )
1904         return false;
1905
1906     switch( func( node ) )
1907     {
1908         case DoJob::OK :
1909             return true;
1910         case DoJob::IGR:
1911             return false;
1912         case DoJob::CONT:
1913         default:
1914             ;
1915     }
1916
1917     const wxDataViewTreeNodes& nodes = node->GetNodes();
1918     const wxDataViewTreeLeaves& leaves = node->GetChildren();
1919
1920     int len_nodes = nodes.GetCount();
1921     int len = leaves.GetCount();
1922     int i = 0, nodes_i = 0;
1923
1924     for(; i < len; i ++ )
1925     {
1926         void * n = leaves[i];
1927         if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
1928         {
1929             wxDataViewTreeNode * nd = nodes[nodes_i];
1930             nodes_i++;
1931
1932             if( Walker( nd , func ) )
1933                 return true;
1934
1935         }
1936         else
1937             switch( func( n ) )
1938             {
1939                 case DoJob::OK :
1940                     return true;
1941                 case DoJob::IGR:
1942                     continue;
1943                 case DoJob::CONT:
1944                 default:
1945                 ;
1946             }
1947     }
1948     return false;
1949 }
1950
1951 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
1952 {
1953     GetOwner()->InvalidateColBestWidths();
1954
1955     if (IsVirtualList())
1956     {
1957         wxDataViewVirtualListModel *list_model =
1958             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1959         m_count = list_model->GetCount();
1960         UpdateDisplay();
1961         return true;
1962     }
1963
1964     SortPrepare();
1965
1966     wxDataViewTreeNode * node;
1967     node = FindNode(parent);
1968
1969     if( node == NULL )
1970         return false;
1971
1972     node->SetHasChildren( true );
1973
1974     if( g_model->IsContainer( item ) )
1975     {
1976         wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
1977         newnode->SetItem(item);
1978         newnode->SetHasChildren( true );
1979         node->AddNode( newnode);
1980     }
1981     else
1982         node->AddLeaf( item.GetID() );
1983
1984     node->ChangeSubTreeCount(1);
1985
1986     m_count = -1;
1987     UpdateDisplay();
1988
1989     return true;
1990 }
1991
1992 static void DestroyTreeHelper( wxDataViewTreeNode * node);
1993
1994 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
1995                                        const wxDataViewItem& item)
1996 {
1997     GetOwner()->InvalidateColBestWidths();
1998
1999     if (IsVirtualList())
2000     {
2001         wxDataViewVirtualListModel *list_model =
2002             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
2003         m_count = list_model->GetCount();
2004
2005         if( m_currentRow > GetRowCount() )
2006             m_currentRow = m_count - 1;
2007
2008         // TODO: why empty the entire selection?
2009         m_selection.Empty();
2010
2011         UpdateDisplay();
2012
2013         return true;
2014     }
2015
2016     wxDataViewTreeNode * node = FindNode(parent);
2017
2018     // Notice that it is possible that the item being deleted is not in the
2019     // tree at all, for example we could be deleting a never shown (because
2020     // collapsed) item in a tree model. So it's not an error if we don't know
2021     // about this item, just return without doing anything then.
2022     if ( !node || node->GetChildren().Index(item.GetID()) == wxNOT_FOUND )
2023         return false;
2024
2025     int sub = -1;
2026     node->GetChildren().Remove( item.GetID() );
2027     // Manipolate selection
2028     if( m_selection.GetCount() > 1 )
2029     {
2030         m_selection.Empty();
2031     }
2032     bool isContainer = false;
2033     wxDataViewTreeNodes nds = node->GetNodes();
2034     for (size_t i = 0; i < nds.GetCount(); i ++)
2035     {
2036         if (nds[i]->GetItem() == item)
2037         {
2038             isContainer = true;
2039             break;
2040         }
2041     }
2042     if( isContainer )
2043     {
2044         wxDataViewTreeNode * n = NULL;
2045         wxDataViewTreeNodes nodes = node->GetNodes();
2046         int len = nodes.GetCount();
2047         for( int i = 0; i < len; i ++)
2048         {
2049             if( nodes[i]->GetItem() == item )
2050             {
2051                 n = nodes[i];
2052                 break;
2053             }
2054         }
2055
2056         wxCHECK_MSG( n != NULL, false, "item not found" );
2057
2058         node->GetNodes().Remove( n );
2059         sub -= n->GetSubTreeCount();
2060         ::DestroyTreeHelper(n);
2061     }
2062     // Make the row number invalid and get a new valid one when user call GetRowCount
2063     m_count = -1;
2064     node->ChangeSubTreeCount(sub);
2065
2066     // Change the current row to the last row if the current exceed the max row number
2067     if( m_currentRow > GetRowCount() )
2068         m_currentRow = m_count - 1;
2069
2070     UpdateDisplay();
2071
2072     return true;
2073 }
2074
2075 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2076 {
2077     GetOwner()->InvalidateColBestWidths();
2078
2079     SortPrepare();
2080     g_model->Resort();
2081
2082     // Send event
2083     wxWindow *parent = GetParent();
2084     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2085     le.SetEventObject(parent);
2086     le.SetModel(GetOwner()->GetModel());
2087     le.SetItem(item);
2088     parent->GetEventHandler()->ProcessEvent(le);
2089
2090     return true;
2091 }
2092
2093 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2094 {
2095     int view_column = -1;
2096     unsigned int n_col = m_owner->GetColumnCount();
2097     for (unsigned i = 0; i < n_col; i++)
2098     {
2099         wxDataViewColumn *column = m_owner->GetColumn( i );
2100         if (column->GetModelColumn() == model_column)
2101         {
2102             view_column = (int) i;
2103             break;
2104         }
2105     }
2106     if (view_column == -1)
2107         return false;
2108
2109     GetOwner()->InvalidateColBestWidth(view_column);
2110
2111     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2112 /*#define MAX_VIRTUAL_WIDTH       100000
2113
2114     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2115     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2116     Refresh( true, &rect );
2117
2118     return true;
2119 */
2120     SortPrepare();
2121     g_model->Resort();
2122
2123     // Send event
2124     wxWindow *parent = GetParent();
2125     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2126     le.SetEventObject(parent);
2127     le.SetModel(GetOwner()->GetModel());
2128     le.SetItem(item);
2129     le.SetColumn(view_column);
2130     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2131     parent->GetEventHandler()->ProcessEvent(le);
2132
2133     return true;
2134 }
2135
2136 bool wxDataViewMainWindow::Cleared()
2137 {
2138     GetOwner()->InvalidateColBestWidths();
2139
2140     DestroyTree();
2141     m_selection.Clear();
2142
2143     SortPrepare();
2144     BuildTree( GetOwner()->GetModel() );
2145
2146     UpdateDisplay();
2147
2148     return true;
2149 }
2150
2151 void wxDataViewMainWindow::UpdateDisplay()
2152 {
2153     m_dirty = true;
2154     m_underMouse = NULL;
2155 }
2156
2157 void wxDataViewMainWindow::OnInternalIdle()
2158 {
2159     wxWindow::OnInternalIdle();
2160
2161     if (m_dirty)
2162     {
2163         RecalculateDisplay();
2164         m_dirty = false;
2165     }
2166 }
2167
2168 void wxDataViewMainWindow::RecalculateDisplay()
2169 {
2170     wxDataViewModel *model = GetOwner()->GetModel();
2171     if (!model)
2172     {
2173         Refresh();
2174         return;
2175     }
2176
2177     int width = GetEndOfLastCol();
2178     int height = GetLineStart( GetRowCount() );
2179
2180     SetVirtualSize( width, height );
2181     GetOwner()->SetScrollRate( 10, m_lineHeight );
2182
2183     Refresh();
2184 }
2185
2186 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2187 {
2188     m_underMouse = NULL;
2189
2190     wxWindow::ScrollWindow( dx, dy, rect );
2191
2192     if (GetOwner()->m_headerArea)
2193         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2194 }
2195
2196 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2197 {
2198     m_underMouse = NULL;
2199
2200     int x, y;
2201     m_owner->GetScrollPixelsPerUnit( &x, &y );
2202     int sy = GetLineStart( rows )/y;
2203     int sx = 0;
2204     if( column != -1 )
2205     {
2206         wxRect rect = GetClientRect();
2207         int colnum = 0;
2208         int x_start, w = 0;
2209         int xx, yy, xe;
2210         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2211         for (x_start = 0; colnum < column; colnum++)
2212         {
2213             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2214             if (col->IsHidden())
2215                 continue;      // skip it!
2216
2217             w = col->GetWidth();
2218             x_start += w;
2219         }
2220
2221         int x_end = x_start + w;
2222         xe = xx + rect.width;
2223         if( x_end > xe )
2224         {
2225             sx = ( xx + x_end - xe )/x;
2226         }
2227         if( x_start < xx )
2228         {
2229             sx = x_start/x;
2230         }
2231     }
2232     m_owner->Scroll( sx, sy );
2233 }
2234
2235 int wxDataViewMainWindow::GetCountPerPage() const
2236 {
2237     wxSize size = GetClientSize();
2238     return size.y / m_lineHeight;
2239 }
2240
2241 int wxDataViewMainWindow::GetEndOfLastCol() const
2242 {
2243     int width = 0;
2244     unsigned int i;
2245     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2246     {
2247         const wxDataViewColumn *c =
2248             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2249
2250         if (!c->IsHidden())
2251             width += c->GetWidth();
2252     }
2253     return width;
2254 }
2255
2256 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2257 {
2258     int x = 0;
2259     int y = 0;
2260     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2261
2262     return GetLineAt( y );
2263 }
2264
2265 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2266 {
2267     wxSize client_size = GetClientSize();
2268     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2269                                     &client_size.x, &client_size.y );
2270
2271     // we should deal with the pixel here
2272     unsigned int row = GetLineAt(client_size.y) - 1;
2273
2274     return wxMin( GetRowCount()-1, row );
2275 }
2276
2277 unsigned int wxDataViewMainWindow::GetRowCount()
2278 {
2279     if ( m_count == -1 )
2280     {
2281         m_count = RecalculateCount();
2282         UpdateDisplay();
2283     }
2284     return m_count;
2285 }
2286
2287 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2288 {
2289     m_currentRow = row;
2290
2291     // send event
2292 }
2293
2294 void wxDataViewMainWindow::SelectAllRows( bool on )
2295 {
2296     if (IsEmpty())
2297         return;
2298
2299     if (on)
2300     {
2301         m_selection.Clear();
2302         for (unsigned int i = 0; i < GetRowCount(); i++)
2303             m_selection.Add( i );
2304         Refresh();
2305     }
2306     else
2307     {
2308         unsigned int first_visible = GetFirstVisibleRow();
2309         unsigned int last_visible = GetLastVisibleRow();
2310         unsigned int i;
2311         for (i = 0; i < m_selection.GetCount(); i++)
2312         {
2313             unsigned int row = m_selection[i];
2314             if ((row >= first_visible) && (row <= last_visible))
2315                 RefreshRow( row );
2316         }
2317         m_selection.Clear();
2318     }
2319 }
2320
2321 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2322 {
2323     if (m_selection.Index( row ) == wxNOT_FOUND)
2324     {
2325         if (on)
2326         {
2327             m_selection.Add( row );
2328             RefreshRow( row );
2329         }
2330     }
2331     else
2332     {
2333         if (!on)
2334         {
2335             m_selection.Remove( row );
2336             RefreshRow( row );
2337         }
2338     }
2339 }
2340
2341 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2342 {
2343     if (from > to)
2344     {
2345         unsigned int tmp = from;
2346         from = to;
2347         to = tmp;
2348     }
2349
2350     unsigned int i;
2351     for (i = from; i <= to; i++)
2352     {
2353         if (m_selection.Index( i ) == wxNOT_FOUND)
2354         {
2355             if (on)
2356                 m_selection.Add( i );
2357         }
2358         else
2359         {
2360             if (!on)
2361                 m_selection.Remove( i );
2362         }
2363     }
2364     RefreshRows( from, to );
2365 }
2366
2367 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2368 {
2369     for (size_t i=0; i < aSelections.GetCount(); i++)
2370     {
2371         int n = aSelections[i];
2372
2373         m_selection.Add( n );
2374         RefreshRow( n );
2375     }
2376 }
2377
2378 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2379 {
2380     if (m_selection.Index( row ) == wxNOT_FOUND)
2381         m_selection.Add( row );
2382     else
2383         m_selection.Remove( row );
2384     RefreshRow( row );
2385 }
2386
2387 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2388 {
2389     return (m_selection.Index( row ) != wxNOT_FOUND);
2390 }
2391
2392 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2393 {
2394     wxWindow *parent = GetParent();
2395     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2396
2397     le.SetEventObject(parent);
2398     le.SetModel(GetOwner()->GetModel());
2399     le.SetItem( item );
2400
2401     parent->GetEventHandler()->ProcessEvent(le);
2402 }
2403
2404 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2405 {
2406     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2407     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2408
2409     wxSize client_size = GetClientSize();
2410     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2411     wxRect intersect_rect = client_rect.Intersect( rect );
2412     if (intersect_rect.width > 0)
2413         Refresh( true, &intersect_rect );
2414 }
2415
2416 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2417 {
2418     if (from > to)
2419     {
2420         unsigned int tmp = to;
2421         to = from;
2422         from = tmp;
2423     }
2424
2425     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2426     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2427
2428     wxSize client_size = GetClientSize();
2429     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2430     wxRect intersect_rect = client_rect.Intersect( rect );
2431     if (intersect_rect.width > 0)
2432         Refresh( true, &intersect_rect );
2433 }
2434
2435 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2436 {
2437     wxSize client_size = GetClientSize();
2438     int start = GetLineStart( firstRow );
2439     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2440     if (start > client_size.y) return;
2441
2442     wxRect rect( 0, start, client_size.x, client_size.y - start );
2443
2444     Refresh( true, &rect );
2445 }
2446
2447 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2448 {
2449     wxCHECK_RET( newCurrent < GetRowCount(),
2450                 wxT("invalid item index in OnArrowChar()") );
2451
2452     // if there is no selection, we cannot move it anywhere
2453     if (!HasCurrentRow())
2454         return;
2455
2456     unsigned int oldCurrent = m_currentRow;
2457
2458     // in single selection we just ignore Shift as we can't select several
2459     // items anyhow
2460     if ( event.ShiftDown() && !IsSingleSel() )
2461     {
2462         RefreshRow( oldCurrent );
2463
2464         ChangeCurrentRow( newCurrent );
2465
2466         // select all the items between the old and the new one
2467         if ( oldCurrent > newCurrent )
2468         {
2469             newCurrent = oldCurrent;
2470             oldCurrent = m_currentRow;
2471         }
2472
2473         SelectRows( oldCurrent, newCurrent, true );
2474         if (oldCurrent!=newCurrent)
2475             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2476     }
2477     else // !shift
2478     {
2479         RefreshRow( oldCurrent );
2480
2481         // all previously selected items are unselected unless ctrl is held
2482         if ( !event.ControlDown() )
2483             SelectAllRows(false);
2484
2485         ChangeCurrentRow( newCurrent );
2486
2487         if ( !event.ControlDown() )
2488         {
2489             SelectRow( m_currentRow, true );
2490             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2491         }
2492         else
2493             RefreshRow( m_currentRow );
2494     }
2495
2496     GetOwner()->EnsureVisible( m_currentRow, -1 );
2497 }
2498
2499 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2500 {
2501     wxRect rect;
2502     rect.x = 0;
2503     rect.y = GetLineStart( row );
2504     rect.width = GetEndOfLastCol();
2505     rect.height = GetLineHeight( row );
2506
2507     return rect;
2508 }
2509
2510 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2511 {
2512     const wxDataViewModel *model = GetOwner()->GetModel();
2513
2514     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2515     {
2516         // TODO make more efficient
2517
2518         int start = 0;
2519
2520         unsigned int r;
2521         for (r = 0; r < row; r++)
2522         {
2523             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2524             if (!node) return start;
2525
2526             wxDataViewItem item = node->GetItem();
2527
2528             if (node && !node->HasChildren())
2529             {
2530                 // Yes, if the node does not have any child, it must be a leaf which
2531                 // mean that it is a temporarily created by GetTreeNodeByRow
2532                 wxDELETE(node);
2533             }
2534
2535             unsigned int cols = GetOwner()->GetColumnCount();
2536             unsigned int col;
2537             int height = m_lineHeight;
2538             for (col = 0; col < cols; col++)
2539             {
2540                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2541                 if (column->IsHidden())
2542                     continue;      // skip it!
2543
2544                 if ((col != 0) &&
2545                     model->IsContainer(item) &&
2546                     !model->HasContainerColumns(item))
2547                     continue;      // skip it!
2548
2549                 wxDataViewRenderer *renderer =
2550                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2551                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2552
2553                 height = wxMax( height, renderer->GetSize().y );
2554             }
2555
2556             start += height;
2557         }
2558
2559         return start;
2560     }
2561     else
2562     {
2563         return row * m_lineHeight;
2564     }
2565 }
2566
2567 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2568 {
2569     const wxDataViewModel *model = GetOwner()->GetModel();
2570
2571     // check for the easy case first
2572     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2573         return y / m_lineHeight;
2574
2575     // TODO make more efficient
2576     unsigned int row = 0;
2577     unsigned int yy = 0;
2578     for (;;)
2579     {
2580         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2581         if (!node)
2582         {
2583             // not really correct...
2584             return row + ((y-yy) / m_lineHeight);
2585         }
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         unsigned int cols = GetOwner()->GetColumnCount();
2597         unsigned int col;
2598         int height = m_lineHeight;
2599         for (col = 0; col < cols; col++)
2600         {
2601             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2602             if (column->IsHidden())
2603                 continue;      // skip it!
2604
2605             if ((col != 0) &&
2606                 model->IsContainer(item) &&
2607                 !model->HasContainerColumns(item))
2608                 continue;      // skip it!
2609
2610             wxDataViewRenderer *renderer =
2611                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2612             renderer->PrepareForItem(model, item, column->GetModelColumn());
2613
2614             height = wxMax( height, renderer->GetSize().y );
2615         }
2616
2617         yy += height;
2618         if (y < yy)
2619             return row;
2620
2621         row++;
2622     }
2623 }
2624
2625 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2626 {
2627     const wxDataViewModel *model = GetOwner()->GetModel();
2628
2629     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2630     {
2631         wxASSERT( !IsVirtualList() );
2632
2633         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2634         // wxASSERT( node );
2635         if (!node) return m_lineHeight;
2636
2637         wxDataViewItem item = node->GetItem();
2638
2639         if (node && !node->HasChildren())
2640         {
2641                 // Yes, if the node does not have any child, it must be a leaf which
2642                 // mean that it is a temporarily created by GetTreeNodeByRow
2643             wxDELETE(node);
2644         }
2645
2646         int height = m_lineHeight;
2647
2648         unsigned int cols = GetOwner()->GetColumnCount();
2649         unsigned int col;
2650         for (col = 0; col < cols; col++)
2651         {
2652             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2653             if (column->IsHidden())
2654                 continue;      // skip it!
2655
2656             if ((col != 0) &&
2657                 model->IsContainer(item) &&
2658                 !model->HasContainerColumns(item))
2659                 continue;      // skip it!
2660
2661             wxDataViewRenderer *renderer =
2662                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2663             renderer->PrepareForItem(model, item, column->GetModelColumn());
2664
2665             height = wxMax( height, renderer->GetSize().y );
2666         }
2667
2668         return height;
2669     }
2670     else
2671     {
2672         return m_lineHeight;
2673     }
2674 }
2675
2676 class RowToItemJob: public DoJob
2677 {
2678 public:
2679     RowToItemJob( unsigned int row , int current )
2680         { this->row = row; this->current = current; }
2681     virtual ~RowToItemJob() {}
2682
2683     virtual int operator() ( wxDataViewTreeNode * node )
2684     {
2685         current ++;
2686         if( current == static_cast<int>(row))
2687         {
2688             ret = node->GetItem();
2689             return DoJob::OK;
2690         }
2691
2692         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2693         {
2694             current += node->GetSubTreeCount();
2695             return  DoJob::IGR;
2696         }
2697         else
2698         {
2699             // If the current has no child node, we can find the desired item of the row
2700             // number directly.
2701             // This if can speed up finding in some case, and will has a very good effect
2702             // when it comes to list view
2703             if( node->GetNodes().GetCount() == 0)
2704             {
2705                 int index = static_cast<int>(row) - current - 1;
2706                 ret = node->GetChildren().Item( index );
2707                 return DoJob::OK;
2708             }
2709             return DoJob::CONT;
2710         }
2711     }
2712
2713     virtual int operator() ( void * n )
2714     {
2715         current ++;
2716         if( current == static_cast<int>(row))
2717         {
2718             ret = wxDataViewItem( n );
2719             return DoJob::OK;
2720         }
2721         return DoJob::CONT;
2722     }
2723
2724     wxDataViewItem GetResult() const
2725         { return ret; }
2726
2727 private:
2728     unsigned int row;
2729     int current;
2730     wxDataViewItem ret;
2731 };
2732
2733 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2734 {
2735     if (IsVirtualList())
2736     {
2737         return wxDataViewItem( wxUIntToPtr(row+1) );
2738     }
2739     else
2740     {
2741         RowToItemJob job( row, -2 );
2742         Walker( m_root , job );
2743         return job.GetResult();
2744     }
2745 }
2746
2747 class RowToTreeNodeJob: public DoJob
2748 {
2749 public:
2750     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2751     {
2752         this->row = row;
2753         this->current = current;
2754         ret = NULL;
2755         parent = node;
2756     }
2757     virtual ~RowToTreeNodeJob(){ }
2758
2759     virtual int operator() ( wxDataViewTreeNode * node )
2760     {
2761         current ++;
2762         if( current == static_cast<int>(row))
2763         {
2764             ret = node;
2765             return DoJob::OK;
2766         }
2767
2768         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2769         {
2770             current += node->GetSubTreeCount();
2771             return  DoJob::IGR;
2772         }
2773         else
2774         {
2775             parent = node;
2776
2777             // If the current node has no children, we can find the desired item of the
2778             // row number directly.
2779             // This if can speed up finding in some case, and will have a very good
2780             // effect for list views.
2781             if( node->GetNodes().GetCount() == 0)
2782             {
2783                 int index = static_cast<int>(row) - current - 1;
2784                 void * n = node->GetChildren().Item( index );
2785                 ret = new wxDataViewTreeNode( parent );
2786                 ret->SetItem( wxDataViewItem( n ));
2787                 ret->SetHasChildren(false);
2788                 return DoJob::OK;
2789             }
2790             return DoJob::CONT;
2791         }
2792     }
2793
2794     virtual int operator() ( void * n )
2795     {
2796         current ++;
2797         if( current == static_cast<int>(row))
2798         {
2799             ret = new wxDataViewTreeNode( parent );
2800             ret->SetItem( wxDataViewItem( n ));
2801             ret->SetHasChildren(false);
2802             return DoJob::OK;
2803         }
2804
2805         return DoJob::CONT;
2806     }
2807
2808     wxDataViewTreeNode * GetResult() const
2809         { return ret; }
2810
2811 private:
2812     unsigned int row;
2813     int current;
2814     wxDataViewTreeNode * ret;
2815     wxDataViewTreeNode * parent;
2816 };
2817
2818 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2819 {
2820     wxASSERT( !IsVirtualList() );
2821
2822     RowToTreeNodeJob job( row , -2, m_root );
2823     Walker( m_root , job );
2824     return job.GetResult();
2825 }
2826
2827 wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type,
2828                                                          const wxDataViewItem & item )
2829 {
2830     wxWindow *parent = GetParent();
2831     wxDataViewEvent le(type, parent->GetId());
2832
2833     le.SetEventObject(parent);
2834     le.SetModel(GetOwner()->GetModel());
2835     le.SetItem( item );
2836
2837     parent->GetEventHandler()->ProcessEvent(le);
2838     return le;
2839 }
2840
2841 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2842 {
2843     if (IsList())
2844         return false;
2845
2846     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2847     if (!node)
2848         return false;
2849
2850     if (!node->HasChildren())
2851     {
2852         delete node;
2853         return false;
2854     }
2855
2856     return node->IsOpen();
2857 }
2858
2859 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2860 {
2861     if (IsList())
2862         return false;
2863
2864     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2865     if (!node)
2866         return false;
2867
2868     if (!node->HasChildren())
2869     {
2870         delete node;
2871         return false;
2872     }
2873
2874     return true;
2875 }
2876
2877 void wxDataViewMainWindow::Expand( unsigned int row )
2878 {
2879     if (IsList())
2880         return;
2881
2882     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2883     if (!node)
2884         return;
2885
2886     if (!node->HasChildren())
2887     {
2888         delete node;
2889         return;
2890     }
2891
2892             if (!node->IsOpen())
2893             {
2894                 wxDataViewEvent e =
2895                     SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem());
2896
2897                 // Check if the user prevent expanding
2898                 if( e.GetSkipped() )
2899                     return;
2900
2901                 node->ToggleOpen();
2902
2903                 // build the children of current node
2904                 if( node->GetChildrenNumber() == 0 )
2905                 {
2906                     SortPrepare();
2907                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2908                 }
2909
2910                 // By expanding the node all row indices that are currently in the selection list
2911                 // and are greater than our node have become invalid. So we have to correct that now.
2912                 const unsigned rowAdjustment = node->GetSubTreeCount();
2913                 for(unsigned i=0; i<m_selection.size(); ++i)
2914                 {
2915                     const unsigned testRow = m_selection[i];
2916                     // all rows above us are not affected, so skip them
2917                     if(testRow <= row)
2918                         continue;
2919
2920                     m_selection[i] += rowAdjustment;
2921                 }
2922
2923                 if(m_currentRow > row)
2924                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2925
2926                 m_count = -1;
2927                 UpdateDisplay();
2928                 // Send the expanded event
2929                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2930             }
2931 }
2932
2933 void wxDataViewMainWindow::Collapse(unsigned int row)
2934 {
2935     if (IsList())
2936         return;
2937
2938     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2939     if (!node)
2940         return;
2941
2942     if (!node->HasChildren())
2943     {
2944         delete node;
2945         return;
2946     }
2947
2948         if (node->IsOpen())
2949         {
2950             wxDataViewEvent e =
2951                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
2952             if( e.GetSkipped() )
2953                 return;
2954
2955             // Find out if there are selected items below the current node.
2956             bool selectCollapsingRow = false;
2957             const unsigned rowAdjustment = node->GetSubTreeCount();
2958             unsigned maxRowToBeTested = row + rowAdjustment;
2959             for(unsigned i=0; i<m_selection.size(); ++i)
2960             {
2961                 const unsigned testRow = m_selection[i];
2962                 if(testRow > row && testRow <= maxRowToBeTested)
2963                 {
2964                     selectCollapsingRow = true;
2965                     // get out as soon as we have found a node that is selected
2966                     break;
2967                 }
2968             }
2969
2970             node->ToggleOpen();
2971
2972             // If the node to be closed has selected items the user won't see those any longer.
2973             // We select the collapsing node in this case.
2974             if(selectCollapsingRow)
2975             {
2976                 SelectAllRows(false);
2977                 ChangeCurrentRow(row);
2978                 SelectRow(row, true);
2979                 SendSelectionChangedEvent(GetItemByRow(row));
2980             }
2981             else
2982             {
2983                 // if there were no selected items below our node we still need to "fix" the
2984                 // selection list to adjust for the changing of the row indices.
2985                 // We actually do the opposite of what we are doing in Expand().
2986                 for(unsigned i=0; i<m_selection.size(); ++i)
2987                 {
2988                     const unsigned testRow = m_selection[i];
2989                     // all rows above us are not affected, so skip them
2990                     if(testRow <= row)
2991                         continue;
2992
2993                     m_selection[i] -= rowAdjustment;
2994                 }
2995
2996                 // if the "current row" is being collapsed away we change it to the current row ;-)
2997                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
2998                     ChangeCurrentRow(row);
2999                 else if(m_currentRow > row)
3000                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3001             }
3002
3003             m_count = -1;
3004             UpdateDisplay();
3005             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3006         }
3007 }
3008
3009 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3010 {
3011     const wxDataViewModel * model = GetOwner()->GetModel();
3012     if( model == NULL )
3013         return NULL;
3014
3015     if (!item.IsOk())
3016         return m_root;
3017
3018     // Compose the parent-chain for the item we are looking for
3019     wxVector<wxDataViewItem> parentChain;
3020     wxDataViewItem it( item );
3021     while( it.IsOk() )
3022     {
3023         parentChain.push_back(it);
3024         it = model->GetParent(it);
3025     }
3026
3027     // Find the item along the parent-chain.
3028     // This algorithm is designed to speed up the node-finding method
3029     wxDataViewTreeNode* node = m_root;
3030     for( unsigned iter = parentChain.size()-1; iter>=0; --iter )
3031     {
3032         if( node->HasChildren() )
3033         {
3034             if( node->GetChildrenNumber() == 0 )
3035             {
3036                 SortPrepare();
3037                 ::BuildTreeHelper(model, node->GetItem(), node);
3038             }
3039
3040             const wxDataViewTreeNodes& nodes = node->GetNodes();
3041             bool found = false;
3042
3043             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3044             {
3045                 wxDataViewTreeNode* currentNode = nodes[i];
3046                 if (currentNode->GetItem() == parentChain[iter])
3047                 {
3048                     if (currentNode->GetItem() == item)
3049                         return currentNode;
3050
3051                     node = currentNode;
3052                     found = true;
3053                     break;
3054                 }
3055             }
3056             if (!found)
3057                 return NULL;
3058         }
3059         else
3060             return NULL;
3061     }
3062     return NULL;
3063 }
3064
3065 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3066                                     wxDataViewColumn* &column )
3067 {
3068     wxDataViewColumn *col = NULL;
3069     unsigned int cols = GetOwner()->GetColumnCount();
3070     unsigned int colnum = 0;
3071     int x, y;
3072     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3073     for (unsigned x_start = 0; colnum < cols; colnum++)
3074     {
3075         col = GetOwner()->GetColumnAt(colnum);
3076         if (col->IsHidden())
3077             continue;      // skip it!
3078
3079         unsigned int w = col->GetWidth();
3080         if (x_start+w >= (unsigned int)x)
3081             break;
3082
3083         x_start += w;
3084     }
3085
3086     column = col;
3087     item = GetItemByRow( GetLineAt( y ) );
3088 }
3089
3090 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3091                                           const wxDataViewColumn* column )
3092 {
3093     int xpos = 0;
3094     int width = 0;
3095
3096     unsigned int cols = GetOwner()->GetColumnCount();
3097     // If column is null the loop will compute the combined width of all columns.
3098     // Otherwise, it will compute the x position of the column we are looking for.
3099     for (unsigned int i = 0; i < cols; i++)
3100     {
3101         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3102
3103         if (col == column)
3104             break;
3105
3106         if (col->IsHidden())
3107             continue;      // skip it!
3108
3109         xpos += col->GetWidth();
3110         width += col->GetWidth();
3111     }
3112
3113     if(column != 0)
3114     {
3115         // If we have a column, we need can get its width directly.
3116         if(column->IsHidden())
3117             width = 0;
3118         else
3119             width = column->GetWidth();
3120
3121     }
3122     else
3123     {
3124         // If we have no column, we reset the x position back to zero.
3125         xpos = 0;
3126     }
3127
3128     // we have to take an expander column into account and compute its indentation
3129     // to get the correct x position where the actual text is
3130     int indent = 0;
3131     int row = GetRowByItem(item);
3132     if (!IsList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3133     {
3134         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3135         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3136         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3137
3138         if(!node->HasChildren())
3139             delete node;
3140     }
3141
3142     wxRect itemRect( xpos + indent,
3143                      GetLineStart( row ),
3144                      width - indent,
3145                      GetLineHeight( row ) );
3146
3147     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3148                                       &itemRect.x, &itemRect.y );
3149
3150     return itemRect;
3151 }
3152
3153 int wxDataViewMainWindow::RecalculateCount()
3154 {
3155     if (IsVirtualList())
3156     {
3157         wxDataViewVirtualListModel *list_model =
3158             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3159
3160         return list_model->GetCount();
3161     }
3162     else
3163     {
3164         return m_root->GetSubTreeCount();
3165     }
3166 }
3167
3168 class ItemToRowJob : public DoJob
3169 {
3170 public:
3171     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3172         : m_iter(iter),
3173         item(item_)
3174     {
3175         ret = -1;
3176     }
3177
3178     // Maybe binary search will help to speed up this process
3179     virtual int operator() ( wxDataViewTreeNode * node)
3180     {
3181         ret ++;
3182         if( node->GetItem() == item )
3183         {
3184             return DoJob::OK;
3185         }
3186
3187         if( node->GetItem() == *m_iter )
3188         {
3189             m_iter++;
3190             return DoJob::CONT;
3191         }
3192         else
3193         {
3194             ret += node->GetSubTreeCount();
3195             return DoJob::IGR;
3196         }
3197
3198     }
3199
3200     virtual int operator() ( void * n )
3201     {
3202         ret ++;
3203         if( n == item.GetID() )
3204             return DoJob::OK;
3205         return DoJob::CONT;
3206     }
3207
3208     // the row number is begin from zero
3209     int GetResult() const
3210         { return ret -1; }
3211
3212 private:
3213     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3214     wxDataViewItem item;
3215     int ret;
3216
3217 };
3218
3219 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3220 {
3221     const wxDataViewModel * model = GetOwner()->GetModel();
3222     if( model == NULL )
3223         return -1;
3224
3225     if (IsVirtualList())
3226     {
3227         return wxPtrToUInt( item.GetID() ) -1;
3228     }
3229     else
3230     {
3231         if( !item.IsOk() )
3232             return -1;
3233
3234         // Compose the parent-chain of the item we are looking for
3235         wxVector<wxDataViewItem> parentChain;
3236         wxDataViewItem it( item );
3237         while( it.IsOk() )
3238         {
3239             parentChain.push_back(it);
3240             it = model->GetParent(it);
3241         }
3242
3243         // add an 'invalid' item to represent our 'invisible' root node
3244         parentChain.push_back(wxDataViewItem());
3245
3246         // the parent chain was created by adding the deepest parent first.
3247         // so if we want to start at the root node, we have to iterate backwards through the vector
3248         ItemToRowJob job( item, parentChain.rbegin() );
3249         Walker( m_root, job );
3250         return job.GetResult();
3251     }
3252 }
3253
3254 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3255                              wxDataViewTreeNode * node)
3256 {
3257     if( !model->IsContainer( item ) )
3258         return;
3259
3260     wxDataViewItemArray children;
3261     unsigned int num = model->GetChildren( item, children);
3262
3263     unsigned int index = 0;
3264     while( index < num )
3265     {
3266         if( model->IsContainer( children[index] ) )
3267         {
3268             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3269             n->SetItem(children[index]);
3270             n->SetHasChildren( true );
3271             node->AddNode( n );
3272         }
3273         else
3274         {
3275             node->AddLeaf( children[index].GetID() );
3276         }
3277         index ++;
3278     }
3279     node->SetSubTreeCount( num );
3280     wxDataViewTreeNode * n = node->GetParent();
3281     if( n != NULL)
3282         n->ChangeSubTreeCount(num);
3283
3284 }
3285
3286 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3287 {
3288     DestroyTree();
3289
3290     if (GetOwner()->GetModel()->IsVirtualListModel())
3291     {
3292         m_count = -1;
3293         return;
3294     }
3295
3296     m_root = new wxDataViewTreeNode( NULL );
3297     m_root->SetHasChildren(true);
3298
3299     // First we define a invalid item to fetch the top-level elements
3300     wxDataViewItem item;
3301     SortPrepare();
3302     BuildTreeHelper( model, item, m_root);
3303     m_count = -1;
3304 }
3305
3306 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3307 {
3308     if( node->GetNodeNumber() != 0 )
3309     {
3310         int len = node->GetNodeNumber();
3311         wxDataViewTreeNodes& nodes = node->GetNodes();
3312         for (int i = 0; i < len; i++)
3313             DestroyTreeHelper(nodes[i]);
3314     }
3315     delete node;
3316 }
3317
3318 void wxDataViewMainWindow::DestroyTree()
3319 {
3320     if (!IsVirtualList())
3321     {
3322         ::DestroyTreeHelper(m_root);
3323             m_count = 0;
3324             m_root = NULL;
3325     }
3326 }
3327
3328 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3329 {
3330     wxWindow * const parent = GetParent();
3331
3332     // propagate the char event upwards
3333     wxKeyEvent eventForParent(event);
3334     eventForParent.SetEventObject(parent);
3335     if ( parent->ProcessWindowEvent(eventForParent) )
3336         return;
3337
3338     if ( parent->HandleAsNavigationKey(event) )
3339         return;
3340
3341     // no item -> nothing to do
3342     if (!HasCurrentRow())
3343     {
3344         event.Skip();
3345         return;
3346     }
3347
3348     // don't use m_linesPerPage directly as it might not be computed yet
3349     const int pageSize = GetCountPerPage();
3350     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3351
3352     switch ( event.GetKeyCode() )
3353     {
3354         case WXK_RETURN:
3355             {
3356                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3357                                    parent->GetId());
3358                 le.SetItem( GetItemByRow(m_currentRow) );
3359                 le.SetEventObject(parent);
3360                 le.SetModel(GetOwner()->GetModel());
3361
3362                 parent->GetEventHandler()->ProcessEvent(le);
3363             }
3364             break;
3365
3366         case WXK_UP:
3367             if ( m_currentRow > 0 )
3368                 OnArrowChar( m_currentRow - 1, event );
3369             break;
3370
3371         case WXK_DOWN:
3372             if ( m_currentRow < GetRowCount() - 1 )
3373                 OnArrowChar( m_currentRow + 1, event );
3374             break;
3375         // Add the process for tree expanding/collapsing
3376         case WXK_LEFT:
3377         {
3378             if (IsList())
3379                break;
3380
3381             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3382             if (!node)
3383                 break;
3384
3385             if (node->HasChildren() && node->IsOpen())
3386             {
3387                 Collapse(m_currentRow);
3388             }
3389             else    // if the node is already closed we move the selection to its parent
3390             {
3391                 wxDataViewTreeNode *parent_node = node->GetParent();
3392
3393                 if(!node->HasChildren())
3394                     delete node;
3395
3396                 if (parent_node)
3397                 {
3398                     int parent = GetRowByItem( parent_node->GetItem() );
3399                     if ( parent >= 0 )
3400                     {
3401                         unsigned int row = m_currentRow;
3402                         SelectRow( row, false);
3403                         SelectRow( parent, true );
3404                         ChangeCurrentRow( parent );
3405                         GetOwner()->EnsureVisible( parent, -1 );
3406                         SendSelectionChangedEvent( parent_node->GetItem() );
3407                     }
3408                 }
3409             }
3410             break;
3411         }
3412         case WXK_RIGHT:
3413         {
3414             if (!IsExpanded( m_currentRow ))
3415                 Expand( m_currentRow );
3416             else
3417             {
3418                 unsigned int row = m_currentRow;
3419                 SelectRow( row, false );
3420                 SelectRow( row + 1, true );
3421                 ChangeCurrentRow( row + 1 );
3422                 GetOwner()->EnsureVisible( row + 1, -1 );
3423                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3424             }
3425             break;
3426         }
3427         case WXK_END:
3428         {
3429             if (!IsEmpty())
3430                 OnArrowChar( GetRowCount() - 1, event );
3431             break;
3432         }
3433         case WXK_HOME:
3434             if (!IsEmpty())
3435                 OnArrowChar( 0, event );
3436             break;
3437
3438         case WXK_PAGEUP:
3439             {
3440                 int steps = pageSize - 1;
3441                 int index = m_currentRow - steps;
3442                 if (index < 0)
3443                     index = 0;
3444
3445                 OnArrowChar( index, event );
3446             }
3447             break;
3448
3449         case WXK_PAGEDOWN:
3450             {
3451                 int steps = pageSize - 1;
3452                 unsigned int index = m_currentRow + steps;
3453                 unsigned int count = GetRowCount();
3454                 if ( index >= count )
3455                     index = count - 1;
3456
3457                 OnArrowChar( index, event );
3458             }
3459             break;
3460
3461         case WXK_F2:
3462             {
3463                 if(m_selection.size() == 1)
3464                 {
3465                     // TODO: we need to revise that when we have a concept for a 'current column'
3466                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3467                 }
3468             }
3469             break;
3470
3471         default:
3472             event.Skip();
3473     }
3474 }
3475
3476 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3477 {
3478     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3479     {
3480         // let the base handle mouse wheel events.
3481         event.Skip();
3482         return;
3483     }
3484
3485     // set the focus to ourself if any of the mouse buttons are pressed
3486     if(event.ButtonDown() && !HasFocus())
3487         SetFocus();
3488
3489     int x = event.GetX();
3490     int y = event.GetY();
3491     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3492     wxDataViewColumn *col = NULL;
3493
3494     int xpos = 0;
3495     unsigned int cols = GetOwner()->GetColumnCount();
3496     unsigned int i;
3497     for (i = 0; i < cols; i++)
3498     {
3499         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3500         if (c->IsHidden())
3501             continue;      // skip it!
3502
3503         if (x < xpos + c->GetWidth())
3504         {
3505             col = c;
3506             break;
3507         }
3508         xpos += c->GetWidth();
3509     }
3510     if (!col)
3511     {
3512         event.Skip();
3513         return;
3514     }
3515
3516     wxDataViewRenderer *cell = col->GetRenderer();
3517     unsigned int current = GetLineAt( y );
3518     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3519     {
3520         // Unselect all if below the last row ?
3521         event.Skip();
3522         return;
3523     }
3524
3525     // Test whether the mouse is hovered on the tree item button
3526     bool hoverOverExpander = false;
3527     if ((!IsList()) && (GetOwner()->GetExpanderColumn() == col))
3528     {
3529         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3530         if( node!=NULL && node->HasChildren() )
3531         {
3532             int indent = node->GetIndentLevel();
3533             indent = GetOwner()->GetIndent()*indent;
3534
3535             // we make the rectangle we are looking in a bit bigger than the actual
3536             // visual expander so the user can hit that little thing reliably
3537             wxRect rect( xpos + indent,
3538                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3539                         m_lineHeight, m_lineHeight);
3540             if( rect.Contains(x, y) )
3541             {
3542                 // So the mouse is over the expander
3543                 hoverOverExpander = true;
3544                 if (m_underMouse && m_underMouse != node)
3545                 {
3546                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3547                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3548                 }
3549                 if (m_underMouse != node)
3550                 {
3551                     // wxLogMessage("Do the row: %d", current);
3552                     RefreshRow(current);
3553                 }
3554                 m_underMouse = node;
3555             }
3556         }
3557         if (node!=NULL && !node->HasChildren())
3558             delete node;
3559     }
3560     if (!hoverOverExpander)
3561     {
3562         if (m_underMouse != NULL)
3563         {
3564             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3565             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3566             m_underMouse = NULL;
3567         }
3568     }
3569
3570     wxDataViewModel *model = GetOwner()->GetModel();
3571
3572 #if wxUSE_DRAG_AND_DROP
3573     if (event.Dragging())
3574     {
3575         if (m_dragCount == 0)
3576         {
3577             // we have to report the raw, physical coords as we want to be
3578             // able to call HitTest(event.m_pointDrag) from the user code to
3579             // get the item being dragged
3580             m_dragStart = event.GetPosition();
3581         }
3582
3583         m_dragCount++;
3584
3585         if (m_dragCount != 3)
3586             return;
3587
3588         if (event.LeftIsDown())
3589         {
3590             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3591                                              &m_dragStart.x, &m_dragStart.y );
3592             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3593             wxDataViewItem item = GetItemByRow( drag_item_row );
3594
3595             // Notify cell about drag
3596             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3597             event.SetEventObject( m_owner );
3598             event.SetItem( item );
3599             event.SetModel( model );
3600             if (!m_owner->HandleWindowEvent( event ))
3601                 return;
3602
3603             if (!event.IsAllowed())
3604                 return;
3605
3606             wxDataObject *obj = event.GetDataObject();
3607             if (!obj)
3608                 return;
3609
3610             wxDataViewDropSource drag( this, drag_item_row );
3611             drag.SetData( *obj );
3612             /* wxDragResult res = */ drag.DoDragDrop();
3613             delete obj;
3614         }
3615         return;
3616     }
3617     else
3618     {
3619         m_dragCount = 0;
3620     }
3621 #endif // wxUSE_DRAG_AND_DROP
3622
3623     bool simulateClick = false;
3624
3625     if (event.ButtonDClick())
3626     {
3627         m_renameTimer->Stop();
3628         m_lastOnSame = false;
3629     }
3630
3631     wxDataViewItem item = GetItemByRow(current);
3632     bool ignore_other_columns =
3633         ((GetOwner()->GetExpanderColumn() != col) &&
3634         (model->IsContainer(item)) &&
3635         (!model->HasContainerColumns(item)));
3636
3637     if (event.LeftDClick())
3638     {
3639         if(hoverOverExpander)
3640         {
3641             // a double click on the expander will be converted into a "simulated" normal click
3642             simulateClick = true;
3643         }
3644         else if ( current == m_lineLastClicked )
3645         {
3646             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3647             {
3648                 const unsigned colIdx = col->GetModelColumn();
3649
3650                 cell->PrepareForItem(model, item, colIdx);
3651
3652                 wxRect cell_rect( xpos, GetLineStart( current ),
3653                                 col->GetWidth(), GetLineHeight( current ) );
3654                 cell->WXOnActivate( cell_rect, model, item, colIdx );
3655             }
3656             else
3657             {
3658                 wxWindow *parent = GetParent();
3659                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3660                 le.SetItem( item );
3661                 le.SetColumn( col->GetModelColumn() );
3662                 le.SetDataViewColumn( col );
3663                 le.SetEventObject(parent);
3664                 le.SetModel(GetOwner()->GetModel());
3665
3666                 parent->GetEventHandler()->ProcessEvent(le);
3667             }
3668             return;
3669         }
3670         else
3671         {
3672             // The first click was on another item, so don't interpret this as
3673             // a double click, but as a simple click instead
3674             simulateClick = true;
3675         }
3676     }
3677
3678     if (event.LeftUp() && !hoverOverExpander)
3679     {
3680         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3681         {
3682             // select single line
3683             SelectAllRows( false );
3684             SelectRow( m_lineSelectSingleOnUp, true );
3685             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3686         }
3687
3688         // If the user click the expander, we do not do editing even if the column
3689         // with expander are editable
3690         if (m_lastOnSame && !ignore_other_columns)
3691         {
3692             if ((col == m_currentCol) && (current == m_currentRow) &&
3693                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3694             {
3695                 m_renameTimer->Start( 100, true );
3696             }
3697         }
3698
3699         m_lastOnSame = false;
3700         m_lineSelectSingleOnUp = (unsigned int)-1;
3701     }
3702     else if(!event.LeftUp())
3703     {
3704         // This is necessary, because after a DnD operation in
3705         // from and to ourself, the up event is swallowed by the
3706         // DnD code. So on next non-up event (which means here and
3707         // now) m_lineSelectSingleOnUp should be reset.
3708         m_lineSelectSingleOnUp = (unsigned int)-1;
3709     }
3710
3711     if (event.RightDown())
3712     {
3713         m_lineBeforeLastClicked = m_lineLastClicked;
3714         m_lineLastClicked = current;
3715
3716         // If the item is already selected, do not update the selection.
3717         // Multi-selections should not be cleared if a selected item is clicked.
3718         if (!IsRowSelected(current))
3719         {
3720             SelectAllRows(false);
3721             ChangeCurrentRow(current);
3722             SelectRow(m_currentRow,true);
3723             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3724         }
3725     }
3726     else if (event.RightUp())
3727     {
3728         wxVariant value;
3729         model->GetValue( value, item, col->GetModelColumn() );
3730         wxWindow *parent = GetParent();
3731         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3732         le.SetItem( item );
3733         le.SetColumn( col->GetModelColumn() );
3734         le.SetDataViewColumn( col );
3735         le.SetEventObject(parent);
3736         le.SetModel(GetOwner()->GetModel());
3737         le.SetValue(value);
3738         parent->GetEventHandler()->ProcessEvent(le);
3739     }
3740     else if (event.MiddleDown())
3741     {
3742     }
3743
3744     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3745     {
3746         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3747
3748         // hoverOverExpander being true tells us that our node must be
3749         // valid and have children.
3750         // So we don't need any extra checks.
3751         if( node->IsOpen() )
3752             Collapse(current);
3753         else
3754             Expand(current);
3755     }
3756     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3757     {
3758         m_lineBeforeLastClicked = m_lineLastClicked;
3759         m_lineLastClicked = current;
3760
3761         unsigned int oldCurrentRow = m_currentRow;
3762         bool oldWasSelected = IsRowSelected(m_currentRow);
3763
3764         bool cmdModifierDown = event.CmdDown();
3765         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3766         {
3767             if ( IsSingleSel() || !IsRowSelected(current) )
3768             {
3769                 SelectAllRows( false );
3770                 ChangeCurrentRow(current);
3771                 SelectRow(m_currentRow,true);
3772                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3773             }
3774             else // multi sel & current is highlighted & no mod keys
3775             {
3776                 m_lineSelectSingleOnUp = current;
3777                 ChangeCurrentRow(current); // change focus
3778             }
3779         }
3780         else // multi sel & either ctrl or shift is down
3781         {
3782             if (cmdModifierDown)
3783             {
3784                 ChangeCurrentRow(current);
3785                 ReverseRowSelection(m_currentRow);
3786                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3787             }
3788             else if (event.ShiftDown())
3789             {
3790                 ChangeCurrentRow(current);
3791
3792                 unsigned int lineFrom = oldCurrentRow,
3793                     lineTo = current;
3794
3795                 if ( lineTo < lineFrom )
3796                 {
3797                     lineTo = lineFrom;
3798                     lineFrom = m_currentRow;
3799                 }
3800
3801                 SelectRows(lineFrom, lineTo, true);
3802                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3803             }
3804             else // !ctrl, !shift
3805             {
3806                 // test in the enclosing if should make it impossible
3807                 wxFAIL_MSG( wxT("how did we get here?") );
3808             }
3809         }
3810
3811         if (m_currentRow != oldCurrentRow)
3812             RefreshRow( oldCurrentRow );
3813
3814         wxDataViewColumn *oldCurrentCol = m_currentCol;
3815
3816         // Update selection here...
3817         m_currentCol = col;
3818
3819         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3820                         (current == oldCurrentRow)) && oldWasSelected;
3821
3822         // Call LeftClick after everything else as under GTK+
3823         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3824         {
3825             // notify cell about click
3826             cell->PrepareForItem(model, item, col->GetModelColumn());
3827
3828             wxRect cell_rect( xpos, GetLineStart( current ),
3829                               col->GetWidth(), GetLineHeight( current ) );
3830
3831             // Report position relative to the cell's custom area, i.e.
3832             // no the entire space as given by the control but the one
3833             // used by the renderer after calculation of alignment etc.
3834
3835             // adjust the rectangle ourselves to account for the alignment
3836             wxRect rectItem = cell_rect;
3837             const int align = cell->GetAlignment();
3838             if ( align != wxDVR_DEFAULT_ALIGNMENT )
3839             {
3840                 const wxSize size = cell->GetSize();
3841
3842                 if ( size.x >= 0 && size.x < cell_rect.width )
3843                 {
3844                     if ( align & wxALIGN_CENTER_HORIZONTAL )
3845                         rectItem.x += (cell_rect.width - size.x)/2;
3846                     else if ( align & wxALIGN_RIGHT )
3847                         rectItem.x += cell_rect.width - size.x;
3848                     // else: wxALIGN_LEFT is the default
3849                 }
3850
3851                 if ( size.y >= 0 && size.y < cell_rect.height )
3852                 {
3853                     if ( align & wxALIGN_CENTER_VERTICAL )
3854                         rectItem.y += (cell_rect.height - size.y)/2;
3855                     else if ( align & wxALIGN_BOTTOM )
3856                         rectItem.y += cell_rect.height - size.y;
3857                     // else: wxALIGN_TOP is the default
3858                 }
3859             }
3860
3861             wxPoint pos( event.GetPosition() );
3862             pos.x -= rectItem.x;
3863             pos.y -= rectItem.y;
3864
3865             m_owner->CalcUnscrolledPosition( pos.x, pos.y, &pos.x, &pos.y );
3866
3867              /* ignore ret */ cell->WXOnLeftClick( pos, cell_rect,
3868                               model, item, col->GetModelColumn());
3869         }
3870     }
3871 }
3872
3873 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3874 {
3875     m_hasFocus = true;
3876
3877     if (HasCurrentRow())
3878         Refresh();
3879
3880     event.Skip();
3881 }
3882
3883 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3884 {
3885     m_hasFocus = false;
3886
3887     if (HasCurrentRow())
3888         Refresh();
3889
3890     event.Skip();
3891 }
3892
3893 wxDataViewItem wxDataViewMainWindow::GetSelection() const
3894 {
3895     if( m_selection.GetCount() != 1 )
3896         return wxDataViewItem();
3897
3898     return GetItemByRow( m_selection.Item(0));
3899 }
3900
3901 //-----------------------------------------------------------------------------
3902 // wxDataViewCtrl
3903 //-----------------------------------------------------------------------------
3904
3905 WX_DEFINE_LIST(wxDataViewColumnList)
3906
3907 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3908 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3909     EVT_SIZE(wxDataViewCtrl::OnSize)
3910 END_EVENT_TABLE()
3911
3912 wxDataViewCtrl::~wxDataViewCtrl()
3913 {
3914     if (m_notifier)
3915         GetModel()->RemoveNotifier( m_notifier );
3916
3917     m_cols.Clear();
3918     m_colsBestWidths.clear();
3919 }
3920
3921 void wxDataViewCtrl::Init()
3922 {
3923     m_cols.DeleteContents(true);
3924     m_notifier = NULL;
3925
3926     // No sorting column at start
3927     m_sortingColumnIdx = wxNOT_FOUND;
3928
3929     m_headerArea = NULL;
3930 }
3931
3932 bool wxDataViewCtrl::Create(wxWindow *parent,
3933                             wxWindowID id,
3934                             const wxPoint& pos,
3935                             const wxSize& size,
3936                             long style,
3937                             const wxValidator& validator,
3938                             const wxString& name)
3939 {
3940 //    if ( (style & wxBORDER_MASK) == 0)
3941 //        style |= wxBORDER_SUNKEN;
3942
3943     Init();
3944
3945     if (!wxControl::Create( parent, id, pos, size,
3946                             style | wxScrolledWindowStyle, validator, name))
3947         return false;
3948
3949     SetInitialSize(size);
3950
3951 #ifdef __WXMAC__
3952     MacSetClipChildren( true );
3953 #endif
3954
3955     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
3956
3957     // We use the cursor keys for moving the selection, not scrolling, so call
3958     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
3959     // keyboard events forwarded to us from wxListMainWindow.
3960     DisableKeyboardScrolling();
3961
3962     if (HasFlag(wxDV_NO_HEADER))
3963         m_headerArea = NULL;
3964     else
3965         m_headerArea = new wxDataViewHeaderWindow(this);
3966
3967     SetTargetWindow( m_clientArea );
3968
3969     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
3970     if (m_headerArea)
3971         sizer->Add( m_headerArea, 0, wxGROW );
3972     sizer->Add( m_clientArea, 1, wxGROW );
3973     SetSizer( sizer );
3974
3975     return true;
3976 }
3977
3978 wxBorder wxDataViewCtrl::GetDefaultBorder() const
3979 {
3980     return wxBORDER_THEME;
3981 }
3982
3983 #ifdef __WXMSW__
3984 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
3985                                         WXWPARAM wParam,
3986                                         WXLPARAM lParam)
3987 {
3988     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
3989
3990 #ifndef __WXWINCE__
3991     // we need to process arrows ourselves for scrolling
3992     if ( nMsg == WM_GETDLGCODE )
3993     {
3994         rc |= DLGC_WANTARROWS;
3995     }
3996 #endif
3997
3998     return rc;
3999 }
4000 #endif
4001
4002 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4003 {
4004     wxSize newsize = size;
4005     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4006     newsize.y -= m_headerArea->GetSize().y;
4007
4008     return newsize;
4009 }
4010
4011 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4012 {
4013     // We need to override OnSize so that our scrolled
4014     // window a) does call Layout() to use sizers for
4015     // positioning the controls but b) does not query
4016     // the sizer for their size and use that for setting
4017     // the scrollable area as set that ourselves by
4018     // calling SetScrollbar() further down.
4019
4020     Layout();
4021
4022     AdjustScrollbars();
4023 }
4024
4025 void wxDataViewCtrl::SetFocus()
4026 {
4027     if (m_clientArea)
4028         m_clientArea->SetFocus();
4029 }
4030
4031 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4032 {
4033     if (!wxDataViewCtrlBase::AssociateModel( model ))
4034         return false;
4035
4036     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4037
4038     model->AddNotifier( m_notifier );
4039
4040     m_clientArea->DestroyTree();
4041
4042     m_clientArea->BuildTree(model);
4043
4044     m_clientArea->UpdateDisplay();
4045
4046     return true;
4047 }
4048
4049 #if wxUSE_DRAG_AND_DROP
4050
4051 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4052 {
4053     return m_clientArea->EnableDragSource( format );
4054 }
4055
4056 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4057 {
4058     return m_clientArea->EnableDropTarget( format );
4059 }
4060
4061 #endif // wxUSE_DRAG_AND_DROP
4062
4063 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4064 {
4065     if (!wxDataViewCtrlBase::AppendColumn(col))
4066         return false;
4067
4068     m_cols.Append( col );
4069     m_colsBestWidths.push_back(0);
4070     OnColumnsCountChanged();
4071     return true;
4072 }
4073
4074 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4075 {
4076     if (!wxDataViewCtrlBase::PrependColumn(col))
4077         return false;
4078
4079     m_cols.Insert( col );
4080     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4081     OnColumnsCountChanged();
4082     return true;
4083 }
4084
4085 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4086 {
4087     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4088         return false;
4089
4090     m_cols.Insert( pos, col );
4091     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4092     OnColumnsCountChanged();
4093     return true;
4094 }
4095
4096 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4097 {
4098     if ( m_headerArea )
4099         m_headerArea->UpdateColumn(idx);
4100
4101     m_clientArea->UpdateDisplay();
4102 }
4103
4104 void wxDataViewCtrl::OnColumnsCountChanged()
4105 {
4106     if (m_headerArea)
4107         m_headerArea->SetColumnCount(GetColumnCount());
4108
4109     m_clientArea->UpdateDisplay();
4110 }
4111
4112 void wxDataViewCtrl::DoSetExpanderColumn()
4113 {
4114     m_clientArea->UpdateDisplay();
4115 }
4116
4117 void wxDataViewCtrl::DoSetIndent()
4118 {
4119     m_clientArea->UpdateDisplay();
4120 }
4121
4122 unsigned int wxDataViewCtrl::GetColumnCount() const
4123 {
4124     return m_cols.GetCount();
4125 }
4126
4127 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4128 {
4129     return m_cols[idx];
4130 }
4131
4132 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4133 {
4134     // columns can't be reordered if there is no header window which allows
4135     // to do this
4136     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4137                                     : pos;
4138
4139     return GetColumn(idx);
4140 }
4141
4142 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4143 {
4144     const unsigned count = m_cols.size();
4145     for ( unsigned n = 0; n < count; n++ )
4146     {
4147         if ( m_cols[n] == column )
4148             return n;
4149     }
4150
4151     return wxNOT_FOUND;
4152 }
4153
4154 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4155 {
4156     if ( m_colsBestWidths[idx] != 0 )
4157         return m_colsBestWidths[idx];
4158
4159     const int count = m_clientArea->GetRowCount();
4160     wxDataViewColumn *column = GetColumn(idx);
4161     wxDataViewRenderer *renderer =
4162         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4163
4164     class MaxWidthCalculator
4165     {
4166     public:
4167         MaxWidthCalculator(wxDataViewMainWindow *clientArea,
4168                            wxDataViewRenderer *renderer,
4169                            const wxDataViewModel *model,
4170                            unsigned column)
4171             : m_width(0),
4172               m_clientArea(clientArea),
4173               m_renderer(renderer),
4174               m_model(model),
4175               m_column(column)
4176         {
4177         }
4178
4179         void UpdateWithWidth(int width)
4180         {
4181             m_width = wxMax(m_width, width);
4182         }
4183
4184         void UpdateWithRow(int row)
4185         {
4186             wxDataViewItem item = m_clientArea->GetItemByRow(row);
4187             m_renderer->PrepareForItem(m_model, item, m_column);
4188             m_width = wxMax(m_width, m_renderer->GetSize().x);
4189         }
4190
4191         int GetMaxWidth() const { return m_width; }
4192
4193     private:
4194         int m_width;
4195         wxDataViewMainWindow *m_clientArea;
4196         wxDataViewRenderer *m_renderer;
4197         const wxDataViewModel *m_model;
4198         unsigned m_column;
4199     };
4200
4201     MaxWidthCalculator calculator(m_clientArea, renderer,
4202                                   GetModel(), column->GetModelColumn());
4203
4204     if ( m_headerArea )
4205     {
4206         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4207         // Labels on native MSW header are indented on both sides
4208         header_width +=
4209             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4210         calculator.UpdateWithWidth(header_width);
4211     }
4212
4213     // The code below deserves some explanation. For very large controls, we
4214     // simply can't afford to calculate sizes for all items, it takes too
4215     // long. So the best we can do is to check the first and the last N/2
4216     // items in the control for some sufficiently large N and calculate best
4217     // sizes from that. That can result in the calculated best width being too
4218     // small for some outliers, but it's better to get slightly imperfect
4219     // result than to wait several seconds after every update. To avoid highly
4220     // visible miscalculations, we also include all currently visible items
4221     // no matter what.  Finally, the value of N is determined dynamically by
4222     // measuring how much time we spent on the determining item widths so far.
4223
4224 #if wxUSE_STOPWATCH
4225     int top_part_end = count;
4226     static const long CALC_TIMEOUT = 20/*ms*/;
4227     // don't call wxStopWatch::Time() too often
4228     static const unsigned CALC_CHECK_FREQ = 100;
4229     wxStopWatch timer;
4230 #else
4231     // use some hard-coded limit, that's the best we can do without timer
4232     int top_part_end = wxMin(500, count);
4233 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4234
4235     int row = 0;
4236
4237     for ( row = 0; row < top_part_end; row++ )
4238     {
4239 #if wxUSE_STOPWATCH
4240         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4241              timer.Time() > CALC_TIMEOUT )
4242             break;
4243 #endif // wxUSE_STOPWATCH
4244         calculator.UpdateWithRow(row);
4245     }
4246
4247     // row is the first unmeasured item now; that's our value of N/2
4248
4249     if ( row < count )
4250     {
4251         top_part_end = row;
4252
4253         // add bottom N/2 items now:
4254         const int bottom_part_start = wxMax(row, count - row);
4255         for ( row = bottom_part_start; row < count; row++ )
4256         {
4257             calculator.UpdateWithRow(row);
4258         }
4259
4260         // finally, include currently visible items in the calculation:
4261         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4262         int first_visible = m_clientArea->GetLineAt(origin.y);
4263         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4264
4265         first_visible = wxMax(first_visible, top_part_end);
4266         last_visible = wxMin(bottom_part_start, last_visible);
4267
4268         for ( row = first_visible; row < last_visible; row++ )
4269         {
4270             calculator.UpdateWithRow(row);
4271         }
4272
4273         wxLogTrace("dataview",
4274                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4275                    top_part_end,
4276                    count - bottom_part_start,
4277                    wxMax(0, last_visible - first_visible),
4278                    count);
4279     }
4280
4281     int max_width = calculator.GetMaxWidth();
4282     if ( max_width > 0 )
4283         max_width += 2 * PADDING_RIGHTLEFT;
4284
4285     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4286     return max_width;
4287 }
4288
4289 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4290                                 unsigned int WXUNUSED(new_pos))
4291 {
4292     // do _not_ reorder m_cols elements here, they should always be in the
4293     // order in which columns were added, we only display the columns in
4294     // different order
4295     m_clientArea->UpdateDisplay();
4296 }
4297
4298 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4299 {
4300     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4301     if (!ret)
4302         return false;
4303
4304     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4305     m_cols.Erase(ret);
4306     OnColumnsCountChanged();
4307
4308     return true;
4309 }
4310
4311 bool wxDataViewCtrl::ClearColumns()
4312 {
4313     m_cols.Clear();
4314     m_colsBestWidths.clear();
4315     OnColumnsCountChanged();
4316     return true;
4317 }
4318
4319 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4320 {
4321     m_colsBestWidths[idx] = 0;
4322
4323     if ( m_headerArea )
4324         m_headerArea->UpdateColumn(idx);
4325 }
4326
4327 void wxDataViewCtrl::InvalidateColBestWidths()
4328 {
4329     m_colsBestWidths.clear();
4330     m_colsBestWidths.resize(m_cols.size());
4331
4332     if ( m_headerArea )
4333     {
4334         const unsigned cols = m_headerArea->GetColumnCount();
4335         for ( unsigned i = 0; i < cols; i++ )
4336             m_headerArea->UpdateColumn(i);
4337     }
4338 }
4339
4340 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4341 {
4342 #if 1
4343     unsigned int len = GetColumnCount();
4344     for ( unsigned int i = 0; i < len; i++ )
4345     {
4346         wxDataViewColumn * col = GetColumnAt(i);
4347         if (column==col)
4348             return i;
4349     }
4350
4351     return wxNOT_FOUND;
4352 #else
4353     // This returns the position in pixels which is not what we want.
4354     int ret = 0,
4355         dummy = 0;
4356     unsigned int len = GetColumnCount();
4357     for ( unsigned int i = 0; i < len; i++ )
4358     {
4359         wxDataViewColumn * col = GetColumnAt(i);
4360         if (col->IsHidden())
4361             continue;
4362         ret += col->GetWidth();
4363         if (column==col)
4364         {
4365             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4366             break;
4367         }
4368     }
4369     return ret;
4370 #endif
4371 }
4372
4373 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4374 {
4375     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4376                                             : GetColumn(m_sortingColumnIdx);
4377 }
4378
4379 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4380 {
4381     return GetItemByRow(m_clientArea->GetCurrentRow());
4382 }
4383
4384 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4385 {
4386     const int row = m_clientArea->GetRowByItem(item);
4387
4388     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4389     if ( static_cast<unsigned>(row) != oldCurrent )
4390     {
4391         m_clientArea->ChangeCurrentRow(row);
4392         m_clientArea->RefreshRow(oldCurrent);
4393         m_clientArea->RefreshRow(row);
4394     }
4395 }
4396
4397 // Selection code with wxDataViewItem as parameters
4398 wxDataViewItem wxDataViewCtrl::GetSelection() const
4399 {
4400     return m_clientArea->GetSelection();
4401 }
4402
4403 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4404 {
4405     sel.Empty();
4406     wxDataViewSelection selection = m_clientArea->GetSelections();
4407     int len = selection.GetCount();
4408     for( int i = 0; i < len; i ++)
4409     {
4410         unsigned int row = selection[i];
4411         sel.Add( m_clientArea->GetItemByRow( row ) );
4412     }
4413     return len;
4414 }
4415
4416 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4417 {
4418     wxDataViewSelection selection(wxDataViewSelectionCmp);
4419
4420     wxDataViewItem last_parent;
4421
4422     int len = sel.GetCount();
4423     for( int i = 0; i < len; i ++ )
4424     {
4425         wxDataViewItem item = sel[i];
4426         wxDataViewItem parent = GetModel()->GetParent( item );
4427         if (parent)
4428         {
4429             if (parent != last_parent)
4430                 ExpandAncestors(item);
4431         }
4432
4433         last_parent = parent;
4434         int row = m_clientArea->GetRowByItem( item );
4435         if( row >= 0 )
4436             selection.Add( static_cast<unsigned int>(row) );
4437     }
4438
4439     m_clientArea->SetSelections( selection );
4440 }
4441
4442 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4443 {
4444     ExpandAncestors( item );
4445
4446     int row = m_clientArea->GetRowByItem( item );
4447     if( row >= 0 )
4448     {
4449         // Unselect all rows before select another in the single select mode
4450         if (m_clientArea->IsSingleSel())
4451             m_clientArea->SelectAllRows(false);
4452
4453         m_clientArea->SelectRow(row, true);
4454
4455         // Also set focus to the selected item
4456         m_clientArea->ChangeCurrentRow( row );
4457     }
4458 }
4459
4460 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4461 {
4462     int row = m_clientArea->GetRowByItem( item );
4463     if( row >= 0 )
4464         m_clientArea->SelectRow(row, false);
4465 }
4466
4467 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4468 {
4469     int row = m_clientArea->GetRowByItem( item );
4470     if( row >= 0 )
4471     {
4472         return m_clientArea->IsRowSelected(row);
4473     }
4474     return false;
4475 }
4476
4477 // Selection code with row number as parameter
4478 int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
4479 {
4480     sel.Empty();
4481     wxDataViewSelection selection = m_clientArea->GetSelections();
4482     int len = selection.GetCount();
4483     for( int i = 0; i < len; i ++)
4484     {
4485         unsigned int row = selection[i];
4486         sel.Add( row );
4487     }
4488     return len;
4489 }
4490
4491 void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )
4492 {
4493     wxDataViewSelection selection(wxDataViewSelectionCmp);
4494     int len = sel.GetCount();
4495     for( int i = 0; i < len; i ++ )
4496     {
4497         int row = sel[i];
4498         if( row >= 0 )
4499             selection.Add( static_cast<unsigned int>(row) );
4500     }
4501     m_clientArea->SetSelections( selection );
4502 }
4503
4504 void wxDataViewCtrl::Select( int row )
4505 {
4506     if( row >= 0 )
4507     {
4508         if (m_clientArea->IsSingleSel())
4509             m_clientArea->SelectAllRows(false);
4510         m_clientArea->SelectRow( row, true );
4511     }
4512 }
4513
4514 void wxDataViewCtrl::Unselect( int row )
4515 {
4516     if( row >= 0 )
4517         m_clientArea->SelectRow(row, false);
4518 }
4519
4520 bool wxDataViewCtrl::IsSelected( int row ) const
4521 {
4522     if( row >= 0 )
4523         return m_clientArea->IsRowSelected(row);
4524     return false;
4525 }
4526
4527 void wxDataViewCtrl::SelectRange( int from, int to )
4528 {
4529     wxArrayInt sel;
4530     for( int i = from; i < to; i ++ )
4531         sel.Add( i );
4532     m_clientArea->Select(sel);
4533 }
4534
4535 void wxDataViewCtrl::UnselectRange( int from, int to )
4536 {
4537     wxDataViewSelection sel = m_clientArea->GetSelections();
4538     for( int i = from; i < to; i ++ )
4539         if( sel.Index( i ) != wxNOT_FOUND )
4540             sel.Remove( i );
4541     m_clientArea->SetSelections(sel);
4542 }
4543
4544 void wxDataViewCtrl::SelectAll()
4545 {
4546     m_clientArea->SelectAllRows(true);
4547 }
4548
4549 void wxDataViewCtrl::UnselectAll()
4550 {
4551     m_clientArea->SelectAllRows(false);
4552 }
4553
4554 void wxDataViewCtrl::EnsureVisible( int row, int column )
4555 {
4556     if( row < 0 )
4557         row = 0;
4558     if( row > (int) m_clientArea->GetRowCount() )
4559         row = m_clientArea->GetRowCount();
4560
4561     int first = m_clientArea->GetFirstVisibleRow();
4562     int last = m_clientArea->GetLastVisibleRow();
4563     if( row < first )
4564         m_clientArea->ScrollTo( row, column );
4565     else if( row > last )
4566         m_clientArea->ScrollTo( row - last + first, column );
4567     else
4568         m_clientArea->ScrollTo( first, column );
4569 }
4570
4571 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4572 {
4573     ExpandAncestors( item );
4574
4575     m_clientArea->RecalculateDisplay();
4576
4577     int row = m_clientArea->GetRowByItem(item);
4578     if( row >= 0 )
4579     {
4580         if( column == NULL )
4581             EnsureVisible(row, -1);
4582         else
4583             EnsureVisible( row, GetColumnIndex(column) );
4584     }
4585
4586 }
4587
4588 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4589                               wxDataViewColumn* &column ) const
4590 {
4591     m_clientArea->HitTest(point, item, column);
4592 }
4593
4594 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4595                                     const wxDataViewColumn* column ) const
4596 {
4597     return m_clientArea->GetItemRect(item, column);
4598 }
4599
4600 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4601 {
4602     return m_clientArea->GetItemByRow( row );
4603 }
4604
4605 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4606 {
4607     return m_clientArea->GetRowByItem( item );
4608 }
4609
4610 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4611 {
4612     ExpandAncestors( item );
4613
4614     int row = m_clientArea->GetRowByItem( item );
4615     if (row != -1)
4616         m_clientArea->Expand(row);
4617 }
4618
4619 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4620 {
4621     int row = m_clientArea->GetRowByItem( item );
4622     if (row != -1)
4623         m_clientArea->Collapse(row);
4624 }
4625
4626 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4627 {
4628     int row = m_clientArea->GetRowByItem( item );
4629     if (row != -1)
4630         return m_clientArea->IsExpanded(row);
4631     return false;
4632 }
4633
4634 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4635 {
4636     wxDataViewColumn* col = GetColumn( column );
4637     if (!col)
4638         return;
4639
4640     wxRect itemRect = GetItemRect(item, col);
4641     wxDataViewRenderer* renderer = col->GetRenderer();
4642     if (renderer->GetMode() == wxDATAVIEW_CELL_EDITABLE)
4643         renderer->StartEditing(item, itemRect);
4644 }
4645
4646 #endif // !wxUSE_GENERICDATAVIEWCTRL
4647
4648 #endif // wxUSE_DATAVIEWCTRL