src/generic/datavgen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datavgen.cpp
   3 // Purpose:     wxDataViewCtrl generic implementation
   4 // Author:      Robert Roebling
   5 // Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_DATAVIEWCTRL
  19
  20 #include "wx/dataview.h"
  21
  22 #ifdef wxUSE_GENERICDATAVIEWCTRL
  23
  24 #ifndef WX_PRECOMP
  25     #ifdef __WXMSW__
  26         #include "wx/msw/private.h"
  27         #include "wx/msw/wrapwin.h"
  28         #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  29     #endif
  30     #include "wx/sizer.h"
  31     #include "wx/log.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/timer.h"
  34     #include "wx/settings.h"
  35     #include "wx/msgdlg.h"
  36     #include "wx/dcscreen.h"
  37     #include "wx/frame.h"
  38 #endif
  39
  40 #include "wx/stockitem.h"
  41 #include "wx/calctrl.h"
  42 #include "wx/popupwin.h"
  43 #include "wx/renderer.h"
  44 #include "wx/dcbuffer.h"
  45 #include "wx/icon.h"
  46 #include "wx/list.h"
  47 #include "wx/listimpl.cpp"
  48 #include "wx/imaglist.h"
  49 #include "wx/headerctrl.h"
  50 #include "wx/dnd.h"
  51 #include "wx/stopwatch.h"
  52
  53 //-----------------------------------------------------------------------------
  54 // classes
  55 //-----------------------------------------------------------------------------
  56
  57 class wxDataViewColumn;
  58 class wxDataViewHeaderWindow;
  59 class wxDataViewCtrl;
  60
  61 //-----------------------------------------------------------------------------
  62 // classes
  63 //-----------------------------------------------------------------------------
  64
  65 static const int SCROLL_UNIT_X = 15;
  66
  67 // the cell padding on the left/right
  68 static const int PADDING_RIGHTLEFT = 3;
  69
  70 // the expander space margin
  71 static const int EXPANDER_MARGIN = 4;
  72
  73 #ifdef __WXMSW__
  74 static const int EXPANDER_OFFSET = 4;
  75 #else
  76 static const int EXPANDER_OFFSET = 1;
  77 #endif
  78
  79 // Below is the compare stuff.
  80 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  81 // fast search when needed
  82 static wxDataViewModel* g_model;
  83 static int g_column = -2;
  84 static bool g_asending = true;
  85
  86 //-----------------------------------------------------------------------------
  87 // wxDataViewColumn
  88 //-----------------------------------------------------------------------------
  89
  90 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
  91 {
  92     m_width = width;
  93     m_minWidth = 0;
  94     m_align = align;
  95     m_flags = flags;
  96     m_sort = false;
  97     m_sortAscending = true;
  98 }
  99
 100 int wxDataViewColumn::GetWidth() const
 101 {
 102     switch ( m_width )
 103     {
 104         case wxCOL_WIDTH_DEFAULT:
 105             return wxDVC_DEFAULT_WIDTH;
 106
 107         case wxCOL_WIDTH_AUTOSIZE:
 108             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 109             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 110
 111         default:
 112             return m_width;
 113     }
 114 }
 115
 116 void wxDataViewColumn::UpdateDisplay()
 117 {
 118     if (m_owner)
 119     {
 120         int idx = m_owner->GetColumnIndex( this );
 121         m_owner->OnColumnChange( idx );
 122     }
 123 }
 124
 125 //-----------------------------------------------------------------------------
 126 // wxDataViewHeaderWindow
 127 //-----------------------------------------------------------------------------
 128
 129 class wxDataViewHeaderWindow : public wxHeaderCtrl
 130 {
 131 public:
 132     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 133         : wxHeaderCtrl(parent)
 134     {
 135     }
 136
 137     wxDataViewCtrl *GetOwner() const
 138         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 139
 140 protected:
 141     // implement/override wxHeaderCtrl functions by forwarding them to the main
 142     // control
 143     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 144     {
 145         return *(GetOwner()->GetColumn(idx));
 146     }
 147
 148     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 149     {
 150         wxDataViewCtrl * const owner = GetOwner();
 151
 152         int widthContents = owner->GetBestColumnWidth(idx);
 153         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 154         owner->OnColumnChange(idx);
 155
 156         return true;
 157     }
 158
 159 private:
 160     bool SendEvent(wxEventType type, unsigned int n)
 161     {
 162         wxDataViewCtrl * const owner = GetOwner();
 163         wxDataViewEvent event(type, owner->GetId());
 164
 165         event.SetEventObject(owner);
 166         event.SetColumn(n);
 167         event.SetDataViewColumn(owner->GetColumn(n));
 168         event.SetModel(owner->GetModel());
 169
 170         // for events created by wxDataViewHeaderWindow the
 171         // row / value fields are not valid
 172         return owner->GetEventHandler()->ProcessEvent(event);
 173     }
 174
 175     void OnClick(wxHeaderCtrlEvent& event)
 176     {
 177         const unsigned idx = event.GetColumn();
 178
 179         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 180             return;
 181
 182         // default handling for the column click is to sort by this column or
 183         // toggle its sort order
 184         wxDataViewCtrl * const owner = GetOwner();
 185         wxDataViewColumn * const col = owner->GetColumn(idx);
 186         if ( !col->IsSortable() )
 187         {
 188             // no default handling for non-sortable columns
 189             event.Skip();
 190             return;
 191         }
 192
 193         if ( col->IsSortKey() )
 194         {
 195             // already using this column for sorting, just change the order
 196             col->ToggleSortOrder();
 197         }
 198         else // not using this column for sorting yet
 199         {
 200             // first unset the old sort column if any
 201             int oldSortKey = owner->GetSortingColumnIndex();
 202             if ( oldSortKey != wxNOT_FOUND )
 203             {
 204                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 205                 owner->OnColumnChange(oldSortKey);
 206             }
 207
 208             owner->SetSortingColumnIndex(idx);
 209             col->SetAsSortKey();
 210         }
 211
 212         wxDataViewModel * const model = owner->GetModel();
 213         if ( model )
 214             model->Resort();
 215
 216         owner->OnColumnChange(idx);
 217
 218         SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
 219     }
 220
 221     void OnRClick(wxHeaderCtrlEvent& event)
 222     {
 223         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 224                         event.GetColumn()) )
 225             event.Skip();
 226     }
 227
 228     void OnResize(wxHeaderCtrlEvent& event)
 229     {
 230         wxDataViewCtrl * const owner = GetOwner();
 231
 232         const unsigned col = event.GetColumn();
 233         owner->GetColumn(col)->SetWidth(event.GetWidth());
 234         GetOwner()->OnColumnChange(col);
 235     }
 236
 237     void OnEndReorder(wxHeaderCtrlEvent& event)
 238     {
 239         wxDataViewCtrl * const owner = GetOwner();
 240         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 241                         event.GetNewOrder());
 242     }
 243
 244     DECLARE_EVENT_TABLE()
 245     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 246 };
 247
 248 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 249     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 250     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 251
 252     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 253     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 254
 255     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 256 END_EVENT_TABLE()
 257
 258 //-----------------------------------------------------------------------------
 259 // wxDataViewRenameTimer
 260 //-----------------------------------------------------------------------------
 261
 262 class wxDataViewRenameTimer: public wxTimer
 263 {
 264 private:
 265     wxDataViewMainWindow *m_owner;
 266
 267 public:
 268     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 269     void Notify();
 270 };
 271
 272 //-----------------------------------------------------------------------------
 273 // wxDataViewTreeNode
 274 //-----------------------------------------------------------------------------
 275
 276 class wxDataViewTreeNode;
 277 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 278 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 279
 280 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 281                                            wxDataViewTreeNode ** node2);
 282 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 283
 284 class wxDataViewTreeNode
 285 {
 286 public:
 287     wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
 288     {
 289         m_parent = parent;
 290         if (!parent)
 291             m_open = true;
 292         else
 293             m_open = false;
 294         m_hasChildren = false;
 295         m_subTreeCount  = 0;
 296     }
 297
 298     ~wxDataViewTreeNode()
 299     {
 300     }
 301
 302     wxDataViewTreeNode * GetParent() const { return m_parent; }
 303     void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
 304     wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
 305     wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
 306
 307     void AddNode( wxDataViewTreeNode * node )
 308     {
 309         m_leaves.Add( node->GetItem().GetID() );
 310         if (g_column >= -1)
 311             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 312         m_nodes.Add( node );
 313         if (g_column >= -1)
 314             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 315     }
 316     void AddLeaf( void * leaf )
 317     {
 318         m_leaves.Add( leaf );
 319         if (g_column >= -1)
 320             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 321     }
 322
 323     wxDataViewItem & GetItem() { return m_item; }
 324     const wxDataViewItem & GetItem() const { return m_item; }
 325     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 326
 327     unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
 328     unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
 329     int GetIndentLevel() const
 330     {
 331         int ret = 0;
 332         const wxDataViewTreeNode * node = this;
 333         while( node->GetParent()->GetParent() != NULL )
 334         {
 335             node = node->GetParent();
 336             ret ++;
 337         }
 338         return ret;
 339     }
 340
 341     bool IsOpen() const
 342     {
 343         return m_open;
 344     }
 345
 346     void ToggleOpen()
 347     {
 348         int len = m_nodes.GetCount();
 349         int sum = 0;
 350         for ( int i = 0;i < len; i ++)
 351             sum += m_nodes[i]->GetSubTreeCount();
 352
 353         sum += m_leaves.GetCount();
 354         if (m_open)
 355         {
 356             ChangeSubTreeCount(-sum);
 357             m_open = !m_open;
 358         }
 359         else
 360         {
 361             m_open = !m_open;
 362             ChangeSubTreeCount(sum);
 363         }
 364     }
 365     bool HasChildren() const { return m_hasChildren; }
 366     void SetHasChildren( bool has ){ m_hasChildren = has; }
 367
 368     void SetSubTreeCount( int num ) { m_subTreeCount = num; }
 369     int GetSubTreeCount() const { return m_subTreeCount; }
 370     void ChangeSubTreeCount( int num )
 371     {
 372         if( !m_open )
 373             return;
 374         m_subTreeCount += num;
 375         if( m_parent )
 376             m_parent->ChangeSubTreeCount(num);
 377     }
 378
 379     void Resort()
 380     {
 381         if (g_column >= -1)
 382         {
 383             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 384             int len = m_nodes.GetCount();
 385             for (int i = 0; i < len; i ++)
 386                 m_nodes[i]->Resort();
 387             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 388         }
 389     }
 390
 391     // returns node corresponding to 'item' if its in m_nodes or NULL otherwise
 392     wxDataViewTreeNode *FindItemAsNode(const wxDataViewItem& item) const
 393     {
 394         for ( wxDataViewTreeNodes::const_iterator i = m_nodes.begin();
 395               i != m_nodes.end();
 396               ++i )
 397         {
 398             if( (*i)->GetItem() == item )
 399                 return *i;
 400         }
 401
 402         return NULL;
 403     }
 404
 405
 406 private:
 407     wxDataViewTreeNode  *m_parent;
 408     wxDataViewTreeNodes  m_nodes;
 409     wxDataViewTreeLeaves m_leaves;
 410     wxDataViewItem       m_item;
 411     bool                 m_open;
 412     bool                 m_hasChildren;
 413     int                  m_subTreeCount;
 414 };
 415
 416 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 417                                            wxDataViewTreeNode ** node2)
 418 {
 419     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 420 }
 421
 422 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 423 {
 424     return g_model->Compare( wxDataViewItem(*id1), wxDataViewItem(*id2), g_column, g_asending );
 425 }
 426
 427
 428 //-----------------------------------------------------------------------------
 429 // wxDataViewMainWindow
 430 //-----------------------------------------------------------------------------
 431
 432 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
 433
 434 class wxDataViewMainWindow: public wxWindow
 435 {
 436 public:
 437     wxDataViewMainWindow( wxDataViewCtrl *parent,
 438                             wxWindowID id,
 439                             const wxPoint &pos = wxDefaultPosition,
 440                             const wxSize &size = wxDefaultSize,
 441                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 442     virtual ~wxDataViewMainWindow();
 443
 444     bool IsList() const { return GetOwner()->GetModel()->IsListModel(); }
 445     bool IsVirtualList() const { return m_root == NULL; }
 446
 447     // notifications from wxDataViewModel
 448     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 449     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 450     bool ItemChanged( const wxDataViewItem &item );
 451     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 452     bool Cleared();
 453     void Resort()
 454     {
 455         if (!IsVirtualList())
 456         {
 457             SortPrepare();
 458             m_root->Resort();
 459         }
 460         UpdateDisplay();
 461     }
 462
 463     void SortPrepare()
 464     {
 465         g_model = GetOwner()->GetModel();
 466         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 467         if( !col )
 468         {
 469             if (g_model->HasDefaultCompare())
 470                 g_column = -1;
 471             else
 472                 g_column = -2;
 473
 474             g_asending = true;
 475             return;
 476         }
 477         g_column = col->GetModelColumn();
 478         g_asending = col->IsSortOrderAscending();
 479     }
 480
 481     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 482     wxDataViewCtrl *GetOwner() { return m_owner; }
 483     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 484
 485 #if wxUSE_DRAG_AND_DROP
 486     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 487 #endif // wxUSE_DRAG_AND_DROP
 488     void OnPaint( wxPaintEvent &event );
 489     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 490     void OnChar( wxKeyEvent &event );
 491     void OnMouse( wxMouseEvent &event );
 492     void OnSetFocus( wxFocusEvent &event );
 493     void OnKillFocus( wxFocusEvent &event );
 494
 495     void UpdateDisplay();
 496     void RecalculateDisplay();
 497     void OnInternalIdle();
 498
 499     void OnRenameTimer();
 500
 501     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 502     void ScrollTo( int rows, int column );
 503
 504     unsigned GetCurrentRow() const { return m_currentRow; }
 505     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 506     void ChangeCurrentRow( unsigned int row );
 507
 508     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 509     bool IsEmpty() { return GetRowCount() == 0; }
 510
 511     int GetCountPerPage() const;
 512     int GetEndOfLastCol() const;
 513     unsigned int GetFirstVisibleRow() const;
 514
 515     // I change this method to un const because in the tree view,
 516     // the displaying number of the tree are changing along with the
 517     // expanding/collapsing of the tree nodes
 518     unsigned int GetLastVisibleRow();
 519     unsigned int GetRowCount();
 520
 521     wxDataViewItem GetSelection() const;
 522     const wxDataViewSelection& GetSelections() const { return m_selection; }
 523     void SetSelections( const wxDataViewSelection & sel )
 524         { m_selection = sel; UpdateDisplay(); }
 525     void Select( const wxArrayInt& aSelections );
 526     void SelectAllRows( bool on );
 527     void SelectRow( unsigned int row, bool on );
 528     void SelectRows( unsigned int from, unsigned int to, bool on );
 529     void ReverseRowSelection( unsigned int row );
 530     bool IsRowSelected( unsigned int row );
 531     void SendSelectionChangedEvent( const wxDataViewItem& item);
 532
 533     void RefreshRow( unsigned int row );
 534     void RefreshRows( unsigned int from, unsigned int to );
 535     void RefreshRowsAfter( unsigned int firstRow );
 536
 537     // returns the colour to be used for drawing the rules
 538     wxColour GetRuleColour() const
 539     {
 540         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 541     }
 542
 543     wxRect GetLineRect( unsigned int row ) const;
 544
 545     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 546     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 547     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 548
 549     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 550
 551     // Some useful functions for row and item mapping
 552     wxDataViewItem GetItemByRow( unsigned int row ) const;
 553     int GetRowByItem( const wxDataViewItem & item ) const;
 554
 555     // Methods for building the mapping tree
 556     void BuildTree( wxDataViewModel  * model );
 557     void DestroyTree();
 558     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 559     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 560
 561     void Expand( unsigned int row );
 562     void Collapse( unsigned int row );
 563     bool IsExpanded( unsigned int row ) const;
 564     bool HasChildren( unsigned int row ) const;
 565
 566 #if wxUSE_DRAG_AND_DROP
 567     bool EnableDragSource( const wxDataFormat &format );
 568     bool EnableDropTarget( const wxDataFormat &format );
 569
 570     void RemoveDropHint();
 571     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 572     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 573     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 574     void OnLeave();
 575 #endif // wxUSE_DRAG_AND_DROP
 576
 577 private:
 578     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 579     // We did not need this temporarily
 580     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 581
 582     int RecalculateCount();
 583
 584     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 585
 586     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 587
 588 private:
 589     wxDataViewCtrl             *m_owner;
 590     int                         m_lineHeight;
 591     bool                        m_dirty;
 592
 593     wxDataViewColumn           *m_currentCol;
 594     unsigned int                m_currentRow;
 595     wxDataViewSelection         m_selection;
 596
 597     wxDataViewRenameTimer      *m_renameTimer;
 598     bool                        m_lastOnSame;
 599
 600     bool                        m_hasFocus;
 601
 602 #if wxUSE_DRAG_AND_DROP
 603     int                         m_dragCount;
 604     wxPoint                     m_dragStart;
 605
 606     bool                        m_dragEnabled;
 607     wxDataFormat                m_dragFormat;
 608
 609     bool                        m_dropEnabled;
 610     wxDataFormat                m_dropFormat;
 611     bool                        m_dropHint;
 612     unsigned int                m_dropHintLine;
 613 #endif // wxUSE_DRAG_AND_DROP
 614
 615     // for double click logic
 616     unsigned int m_lineLastClicked,
 617         m_lineBeforeLastClicked,
 618         m_lineSelectSingleOnUp;
 619
 620     // the pen used to draw horiz/vertical rules
 621     wxPen m_penRule;
 622
 623     // the pen used to draw the expander and the lines
 624     wxPen m_penExpander;
 625
 626     // This is the tree structure of the model
 627     wxDataViewTreeNode * m_root;
 628     int m_count;
 629
 630     // This is the tree node under the cursor
 631     wxDataViewTreeNode * m_underMouse;
 632
 633 private:
 634     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 635     DECLARE_EVENT_TABLE()
 636 };
 637
 638 // ---------------------------------------------------------
 639 // wxGenericDataViewModelNotifier
 640 // ---------------------------------------------------------
 641
 642 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 643 {
 644 public:
 645     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 646         { m_mainWindow = mainWindow; }
 647
 648     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 649         { return m_mainWindow->ItemAdded( parent , item ); }
 650     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 651         { return m_mainWindow->ItemDeleted( parent, item ); }
 652     virtual bool ItemChanged( const wxDataViewItem & item )
 653         { return m_mainWindow->ItemChanged(item);  }
 654     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 655         { return m_mainWindow->ValueChanged( item, col ); }
 656     virtual bool Cleared()
 657         { return m_mainWindow->Cleared(); }
 658     virtual void Resort()
 659         { m_mainWindow->Resort(); }
 660
 661     wxDataViewMainWindow    *m_mainWindow;
 662 };
 663
 664 // ---------------------------------------------------------
 665 // wxDataViewRenderer
 666 // ---------------------------------------------------------
 667
 668 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 669
 670 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 671                                         wxDataViewCellMode mode,
 672                                         int align) :
 673     wxDataViewCustomRendererBase( varianttype, mode, align )
 674 {
 675     m_align = align;
 676     m_mode = mode;
 677     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 678     m_dc = NULL;
 679 }
 680
 681 wxDataViewRenderer::~wxDataViewRenderer()
 682 {
 683     delete m_dc;
 684 }
 685
 686 wxDC *wxDataViewRenderer::GetDC()
 687 {
 688     if (m_dc == NULL)
 689     {
 690         if (GetOwner() == NULL)
 691             return NULL;
 692         if (GetOwner()->GetOwner() == NULL)
 693             return NULL;
 694         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 695     }
 696
 697     return m_dc;
 698 }
 699
 700 void wxDataViewRenderer::SetAlignment( int align )
 701 {
 702     m_align=align;
 703 }
 704
 705 int wxDataViewRenderer::GetAlignment() const
 706 {
 707     return m_align;
 708 }
 709
 710 // ---------------------------------------------------------
 711 // wxDataViewCustomRenderer
 712 // ---------------------------------------------------------
 713
 714 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 715
 716 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 717                         wxDataViewCellMode mode, int align ) :
 718     wxDataViewRenderer( varianttype, mode, align )
 719 {
 720 }
 721
 722 // ---------------------------------------------------------
 723 // wxDataViewTextRenderer
 724 // ---------------------------------------------------------
 725
 726 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 727
 728 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 729                                                 wxDataViewCellMode mode, int align ) :
 730     wxDataViewRenderer( varianttype, mode, align )
 731 {
 732 }
 733
 734 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 735 {
 736     m_text = value.GetString();
 737
 738     return true;
 739 }
 740
 741 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 742 {
 743     return false;
 744 }
 745
 746 bool wxDataViewTextRenderer::HasEditorCtrl() const
 747 {
 748     return true;
 749 }
 750
 751 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 752         wxRect labelRect, const wxVariant &value )
 753 {
 754     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 755                                        wxPoint(labelRect.x,labelRect.y),
 756                                        wxSize(labelRect.width,labelRect.height) );
 757
 758     // select the text in the control an place the cursor at the end
 759     ctrl->SetInsertionPointEnd();
 760     ctrl->SelectAll();
 761
 762     return ctrl;
 763 }
 764
 765 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 766 {
 767     wxTextCtrl *text = (wxTextCtrl*) editor;
 768     value = text->GetValue();
 769     return true;
 770 }
 771
 772 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 773 {
 774     RenderText(m_text, 0, rect, dc, state);
 775     return true;
 776 }
 777
 778 wxSize wxDataViewTextRenderer::GetSize() const
 779 {
 780     if (!m_text.empty())
 781         return GetTextExtent(m_text);
 782     else
 783         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 784 }
 785
 786 // ---------------------------------------------------------
 787 // wxDataViewBitmapRenderer
 788 // ---------------------------------------------------------
 789
 790 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 791
 792 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 793                                                     wxDataViewCellMode mode, int align ) :
 794     wxDataViewRenderer( varianttype, mode, align )
 795 {
 796 }
 797
 798 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 799 {
 800     if (value.GetType() == wxT("wxBitmap"))
 801         m_bitmap << value;
 802     if (value.GetType() == wxT("wxIcon"))
 803         m_icon << value;
 804
 805     return true;
 806 }
 807
 808 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 809 {
 810     return false;
 811 }
 812
 813 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 814 {
 815     if (m_bitmap.IsOk())
 816         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 817     else if (m_icon.IsOk())
 818         dc->DrawIcon( m_icon, cell.x, cell.y );
 819
 820     return true;
 821 }
 822
 823 wxSize wxDataViewBitmapRenderer::GetSize() const
 824 {
 825     if (m_bitmap.IsOk())
 826         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 827     else if (m_icon.IsOk())
 828         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 829
 830     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 831 }
 832
 833 // ---------------------------------------------------------
 834 // wxDataViewToggleRenderer
 835 // ---------------------------------------------------------
 836
 837 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 838
 839 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 840                         wxDataViewCellMode mode, int align ) :
 841     wxDataViewRenderer( varianttype, mode, align )
 842 {
 843     m_toggle = false;
 844 }
 845
 846 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 847 {
 848     m_toggle = value.GetBool();
 849
 850     return true;
 851 }
 852
 853 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 854 {
 855     return false;
 856 }
 857
 858 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 859 {
 860     int flags = 0;
 861     if (m_toggle)
 862         flags |= wxCONTROL_CHECKED;
 863     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
 864         GetEnabled() == false)
 865         flags |= wxCONTROL_DISABLED;
 866
 867     // check boxes we draw must always have the same, standard size (if it's
 868     // bigger than the cell size the checkbox will be truncated because the
 869     // caller had set the clipping rectangle to prevent us from drawing outside
 870     // the cell)
 871     cell.SetSize(GetSize());
 872
 873     wxRendererNative::Get().DrawCheckBox(
 874             GetOwner()->GetOwner(),
 875             *dc,
 876             cell,
 877             flags );
 878
 879     return true;
 880 }
 881
 882 bool wxDataViewToggleRenderer::WXOnLeftClick(const wxPoint& cursor,
 883                                              const wxRect& WXUNUSED(cell),
 884                                              wxDataViewModel *model,
 885                                              const wxDataViewItem& item,
 886                                              unsigned int col)
 887 {
 888     // only react to clicks directly on the checkbox, not elsewhere in the same cell:
 889     if (!wxRect(GetSize()).Contains(cursor))
 890         return false;
 891
 892     if (model->IsEnabled(item, col))
 893     {
 894         model->ChangeValue(!m_toggle, item, col);
 895         return true;
 896     }
 897
 898     return false;
 899 }
 900
 901 wxSize wxDataViewToggleRenderer::GetSize() const
 902 {
 903     // the window parameter is not used by GetCheckBoxSize() so it's
 904     // safe to pass NULL
 905     return wxRendererNative::Get().GetCheckBoxSize(NULL);
 906 }
 907
 908 // ---------------------------------------------------------
 909 // wxDataViewProgressRenderer
 910 // ---------------------------------------------------------
 911
 912 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
 913
 914 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 915     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 916     wxDataViewRenderer( varianttype, mode, align )
 917 {
 918     m_label = label;
 919     m_value = 0;
 920 }
 921
 922 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 923 {
 924     m_value = (long) value;
 925
 926     if (m_value < 0) m_value = 0;
 927     if (m_value > 100) m_value = 100;
 928
 929     return true;
 930 }
 931
 932 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 933 {
 934     value = (long) m_value;
 935     return true;
 936 }
 937
 938 bool
 939 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
 940 {
 941     // deflate the rect to leave a small border between bars in adjacent rows
 942     wxRect bar = rect.Deflate(0, 1);
 943
 944     dc->SetBrush( *wxTRANSPARENT_BRUSH );
 945     dc->SetPen( *wxBLACK_PEN );
 946     dc->DrawRectangle( bar );
 947
 948     bar.width = (int)(bar.width * m_value / 100.);
 949     dc->SetPen( *wxTRANSPARENT_PEN );
 950
 951     const wxDataViewItemAttr& attr = GetAttr();
 952     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
 953                                   : *wxBLUE_BRUSH );
 954     dc->DrawRectangle( bar );
 955
 956     return true;
 957 }
 958
 959 wxSize wxDataViewProgressRenderer::GetSize() const
 960 {
 961     return wxSize(40,12);
 962 }
 963
 964 // ---------------------------------------------------------
 965 // wxDataViewDateRenderer
 966 // ---------------------------------------------------------
 967
 968 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
 969
 970 #if wxUSE_DATE_RENDERER_POPUP
 971
 972 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 973 {
 974 public:
 975     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
 976         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
 977         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
 978         m_item( item )
 979     {
 980         m_model = model;
 981         m_col = col;
 982         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
 983         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
 984         sizer->Add( m_cal, 1, wxGROW );
 985         SetSizer( sizer );
 986         sizer->Fit( this );
 987     }
 988
 989     void OnCalendar( wxCalendarEvent &event );
 990
 991     wxCalendarCtrl      *m_cal;
 992     wxDataViewModel *m_model;
 993     unsigned int               m_col;
 994     const wxDataViewItem &   m_item;
 995
 996 protected:
 997     virtual void OnDismiss()
 998     {
 999     }
1000
1001 private:
1002     DECLARE_EVENT_TABLE()
1003 };
1004
1005 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
1006     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
1007 END_EVENT_TABLE()
1008
1009 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
1010 {
1011     m_model->ChangeValue( event.GetDate(), m_item, m_col );
1012     DismissAndNotify();
1013 }
1014
1015 #endif // wxUSE_DATE_RENDERER_POPUP
1016
1017 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewRenderer)
1018
1019 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
1020                         wxDataViewCellMode mode, int align ) :
1021     wxDataViewRenderer( varianttype, mode, align )
1022 {
1023 }
1024
1025 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
1026 {
1027     m_date = value.GetDateTime();
1028
1029     return true;
1030 }
1031
1032 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
1033 {
1034     value = m_date;
1035     return true;
1036 }
1037
1038 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
1039 {
1040     wxString tmp = m_date.FormatDate();
1041     RenderText( tmp, 0, cell, dc, state );
1042     return true;
1043 }
1044
1045 wxSize wxDataViewDateRenderer::GetSize() const
1046 {
1047     return GetTextExtent(m_date.FormatDate());
1048 }
1049
1050 bool wxDataViewDateRenderer::WXOnActivate(const wxRect& WXUNUSED(cell),
1051                                           wxDataViewModel *model,
1052                                           const wxDataViewItem& item,
1053                                           unsigned int col)
1054 {
1055     wxDateTime dtOld = m_date;
1056
1057 #if wxUSE_DATE_RENDERER_POPUP
1058     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
1059         GetOwner()->GetOwner()->GetParent(), &dtOld, model, item, col);
1060     wxPoint pos = wxGetMousePosition();
1061     popup->Move( pos );
1062     popup->Layout();
1063     popup->Popup( popup->m_cal );
1064 #else // !wxUSE_DATE_RENDERER_POPUP
1065     wxMessageBox(dtOld.Format());
1066 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
1067
1068     return true;
1069 }
1070
1071 // ---------------------------------------------------------
1072 // wxDataViewIconTextRenderer
1073 // ---------------------------------------------------------
1074
1075 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1076
1077 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1078 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1079     wxDataViewRenderer( varianttype, mode, align )
1080 {
1081     SetMode(mode);
1082     SetAlignment(align);
1083 }
1084
1085 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1086 {
1087     m_value << value;
1088     return true;
1089 }
1090
1091 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1092 {
1093     return false;
1094 }
1095
1096 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1097 {
1098     int xoffset = 0;
1099
1100     const wxIcon& icon = m_value.GetIcon();
1101     if ( icon.IsOk() )
1102     {
1103         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1104         xoffset = icon.GetWidth()+4;
1105     }
1106
1107     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1108
1109     return true;
1110 }
1111
1112 wxSize wxDataViewIconTextRenderer::GetSize() const
1113 {
1114     if (!m_value.GetText().empty())
1115     {
1116         wxSize size = GetTextExtent(m_value.GetText());
1117
1118         if (m_value.GetIcon().IsOk())
1119             size.x += m_value.GetIcon().GetWidth() + 4;
1120         return size;
1121     }
1122     return wxSize(80,20);
1123 }
1124
1125 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1126 {
1127     wxDataViewIconText iconText;
1128     iconText << value;
1129
1130     wxString text = iconText.GetText();
1131
1132     // adjust the label rect to take the width of the icon into account
1133     if (iconText.GetIcon().IsOk())
1134     {
1135         int w = iconText.GetIcon().GetWidth() + 4;
1136         labelRect.x += w;
1137         labelRect.width -= w;
1138     }
1139
1140     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1141                                        wxPoint(labelRect.x,labelRect.y),
1142                                        wxSize(labelRect.width,labelRect.height) );
1143
1144     // select the text in the control an place the cursor at the end
1145     ctrl->SetInsertionPointEnd();
1146     ctrl->SelectAll();
1147
1148     return ctrl;
1149 }
1150
1151 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1152 {
1153     wxTextCtrl *text = (wxTextCtrl*) editor;
1154
1155     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1156     value << iconText;
1157     return true;
1158 }
1159
1160 //-----------------------------------------------------------------------------
1161 // wxDataViewDropTarget
1162 //-----------------------------------------------------------------------------
1163
1164 #if wxUSE_DRAG_AND_DROP
1165
1166 class wxBitmapCanvas: public wxWindow
1167 {
1168 public:
1169     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1170     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1171     {
1172         m_bitmap = bitmap;
1173         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1174     }
1175
1176     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1177     {
1178         wxPaintDC dc(this);
1179         dc.DrawBitmap( m_bitmap, 0, 0);
1180     }
1181
1182     wxBitmap m_bitmap;
1183 };
1184
1185 class wxDataViewDropSource: public wxDropSource
1186 {
1187 public:
1188     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1189         wxDropSource( win )
1190     {
1191         m_win = win;
1192         m_row = row;
1193         m_hint = NULL;
1194     }
1195
1196     ~wxDataViewDropSource()
1197     {
1198         delete m_hint;
1199     }
1200
1201     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1202     {
1203         wxPoint pos = wxGetMousePosition();
1204
1205         if (!m_hint)
1206         {
1207             int liney = m_win->GetLineStart( m_row );
1208             int linex = 0;
1209             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1210             m_win->ClientToScreen( &linex, &liney );
1211             m_dist_x = pos.x - linex;
1212             m_dist_y = pos.y - liney;
1213
1214             int indent = 0;
1215             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1216             m_dist_x -= indent;
1217             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1218                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1219                                         ib.GetSize(),
1220                                         wxFRAME_TOOL_WINDOW |
1221                                         wxFRAME_FLOAT_ON_PARENT |
1222                                         wxFRAME_NO_TASKBAR |
1223                                         wxNO_BORDER );
1224             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1225             m_hint->Show();
1226         }
1227         else
1228         {
1229             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1230             m_hint->SetTransparent( 128 );
1231         }
1232
1233         return false;
1234     }
1235
1236     wxDataViewMainWindow   *m_win;
1237     unsigned int            m_row;
1238     wxFrame                *m_hint;
1239     int m_dist_x,m_dist_y;
1240 };
1241
1242
1243 class wxDataViewDropTarget: public wxDropTarget
1244 {
1245 public:
1246     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1247         wxDropTarget( obj )
1248     {
1249         m_win = win;
1250     }
1251
1252     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1253     {
1254         wxDataFormat format = GetMatchingPair();
1255         if (format == wxDF_INVALID)
1256             return wxDragNone;
1257         return m_win->OnDragOver( format, x, y, def);
1258     }
1259
1260     virtual bool OnDrop( wxCoord x, wxCoord y )
1261     {
1262         wxDataFormat format = GetMatchingPair();
1263         if (format == wxDF_INVALID)
1264             return false;
1265         return m_win->OnDrop( format, x, y );
1266     }
1267
1268     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1269     {
1270         wxDataFormat format = GetMatchingPair();
1271         if (format == wxDF_INVALID)
1272             return wxDragNone;
1273         if (!GetData())
1274             return wxDragNone;
1275         return m_win->OnData( format, x, y, def );
1276     }
1277
1278     virtual void OnLeave()
1279         { m_win->OnLeave(); }
1280
1281     wxDataViewMainWindow   *m_win;
1282 };
1283
1284 #endif // wxUSE_DRAG_AND_DROP
1285
1286 //-----------------------------------------------------------------------------
1287 // wxDataViewRenameTimer
1288 //-----------------------------------------------------------------------------
1289
1290 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1291 {
1292     m_owner = owner;
1293 }
1294
1295 void wxDataViewRenameTimer::Notify()
1296 {
1297     m_owner->OnRenameTimer();
1298 }
1299
1300 //-----------------------------------------------------------------------------
1301 // wxDataViewMainWindow
1302 //-----------------------------------------------------------------------------
1303
1304 // The tree building helper, declared firstly
1305 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1306                              wxDataViewTreeNode * node);
1307
1308 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1309 {
1310     if (row1 > row2) return 1;
1311     if (row1 == row2) return 0;
1312     return -1;
1313 }
1314
1315 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1316
1317 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1318     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1319     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1320     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1321     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1322     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1323 END_EVENT_TABLE()
1324
1325 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1326     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1327     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1328     m_selection( wxDataViewSelectionCmp )
1329
1330 {
1331     SetOwner( parent );
1332
1333     m_lastOnSame = false;
1334     m_renameTimer = new wxDataViewRenameTimer( this );
1335
1336     // TODO: user better initial values/nothing selected
1337     m_currentCol = NULL;
1338     m_currentRow = 0;
1339
1340     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1341
1342 #if wxUSE_DRAG_AND_DROP
1343     m_dragCount = 0;
1344     m_dragStart = wxPoint(0,0);
1345
1346     m_dragEnabled = false;
1347     m_dropEnabled = false;
1348     m_dropHint = false;
1349     m_dropHintLine = (unsigned int) -1;
1350 #endif // wxUSE_DRAG_AND_DROP
1351
1352     m_lineLastClicked = (unsigned int) -1;
1353     m_lineBeforeLastClicked = (unsigned int) -1;
1354     m_lineSelectSingleOnUp = (unsigned int) -1;
1355
1356     m_hasFocus = false;
1357
1358     SetBackgroundColour( *wxWHITE );
1359
1360     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1361
1362     m_penRule = wxPen(GetRuleColour());
1363
1364     // compose a pen whichcan draw black lines
1365     // TODO: maybe there is something system colour to use
1366     m_penExpander = wxPen(wxColour(0,0,0));
1367
1368     m_root = new wxDataViewTreeNode( NULL );
1369     m_root->SetHasChildren(true);
1370
1371     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1372     m_count = -1;
1373     m_underMouse = NULL;
1374     UpdateDisplay();
1375 }
1376
1377 wxDataViewMainWindow::~wxDataViewMainWindow()
1378 {
1379     DestroyTree();
1380     delete m_renameTimer;
1381 }
1382
1383
1384 #if wxUSE_DRAG_AND_DROP
1385 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1386 {
1387     m_dragFormat = format;
1388     m_dragEnabled = format != wxDF_INVALID;
1389
1390     return true;
1391 }
1392
1393 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1394 {
1395     m_dropFormat = format;
1396     m_dropEnabled = format != wxDF_INVALID;
1397
1398     if (m_dropEnabled)
1399         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1400
1401     return true;
1402 }
1403
1404 void wxDataViewMainWindow::RemoveDropHint()
1405 {
1406     if (m_dropHint)
1407     {
1408             m_dropHint = false;
1409             RefreshRow( m_dropHintLine );
1410             m_dropHintLine = (unsigned int) -1;
1411     }
1412 }
1413
1414 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1415                                                wxCoord y, wxDragResult def )
1416 {
1417     int xx = x;
1418     int yy = y;
1419     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1420     unsigned int row = GetLineAt( yy );
1421
1422     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1423     {
1424         RemoveDropHint();
1425         return wxDragNone;
1426     }
1427
1428     wxDataViewItem item = GetItemByRow( row );
1429
1430     wxDataViewModel *model = GetOwner()->GetModel();
1431
1432     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1433     event.SetEventObject( m_owner );
1434     event.SetItem( item );
1435     event.SetModel( model );
1436     event.SetDataFormat( format );
1437     if (!m_owner->HandleWindowEvent( event ))
1438     {
1439         RemoveDropHint();
1440         return wxDragNone;
1441     }
1442
1443     if (!event.IsAllowed())
1444     {
1445         RemoveDropHint();
1446         return wxDragNone;
1447     }
1448
1449
1450     if (m_dropHint && (row != m_dropHintLine))
1451         RefreshRow( m_dropHintLine );
1452     m_dropHint = true;
1453     m_dropHintLine = row;
1454     RefreshRow( row );
1455
1456     return def;
1457 }
1458
1459 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1460 {
1461     RemoveDropHint();
1462
1463     int xx = x;
1464     int yy = y;
1465     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1466     unsigned int row = GetLineAt( yy );
1467
1468     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1469         return false;
1470
1471     wxDataViewItem item = GetItemByRow( row );
1472
1473     wxDataViewModel *model = GetOwner()->GetModel();
1474
1475     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1476     event.SetEventObject( m_owner );
1477     event.SetItem( item );
1478     event.SetModel( model );
1479     event.SetDataFormat( format );
1480     if (!m_owner->HandleWindowEvent( event ))
1481         return false;
1482
1483     if (!event.IsAllowed())
1484         return false;
1485
1486     return true;
1487 }
1488
1489 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1490                                            wxDragResult def )
1491 {
1492     int xx = x;
1493     int yy = y;
1494     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1495     unsigned int row = GetLineAt( yy );
1496
1497     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1498         return wxDragNone;
1499
1500     wxDataViewItem item = GetItemByRow( row );
1501
1502     wxDataViewModel *model = GetOwner()->GetModel();
1503
1504     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1505
1506     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1507     event.SetEventObject( m_owner );
1508     event.SetItem( item );
1509     event.SetModel( model );
1510     event.SetDataFormat( format );
1511     event.SetDataSize( obj->GetSize() );
1512     event.SetDataBuffer( obj->GetData() );
1513     if (!m_owner->HandleWindowEvent( event ))
1514         return wxDragNone;
1515
1516     if (!event.IsAllowed())
1517         return wxDragNone;
1518
1519     return def;
1520 }
1521
1522 void wxDataViewMainWindow::OnLeave()
1523 {
1524     RemoveDropHint();
1525 }
1526
1527 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1528 {
1529     int height = GetLineHeight( row );
1530     int width = 0;
1531     unsigned int cols = GetOwner()->GetColumnCount();
1532     unsigned int col;
1533     for (col = 0; col < cols; col++)
1534     {
1535         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1536         if (column->IsHidden())
1537             continue;      // skip it!
1538         width += column->GetWidth();
1539     }
1540
1541     indent = 0;
1542     if (!IsList())
1543     {
1544         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1545         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1546         indent = indent + m_lineHeight;
1547             // try to use the m_lineHeight as the expander space
1548
1549         if(!node->HasChildren())
1550             delete node;
1551     }
1552     width -= indent;
1553
1554     wxBitmap bitmap( width, height );
1555     wxMemoryDC dc( bitmap );
1556     dc.SetFont( GetFont() );
1557     dc.SetPen( *wxBLACK_PEN );
1558     dc.SetBrush( *wxWHITE_BRUSH );
1559     dc.DrawRectangle( 0,0,width,height );
1560
1561     wxDataViewModel *model = m_owner->GetModel();
1562
1563     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1564     if (!expander)
1565     {
1566         // TODO-RTL: last column for RTL support
1567         expander = GetOwner()->GetColumnAt( 0 );
1568         GetOwner()->SetExpanderColumn(expander);
1569     }
1570
1571
1572     int x = 0;
1573     for (col = 0; col < cols; col++)
1574     {
1575         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1576         wxDataViewRenderer *cell = column->GetRenderer();
1577
1578         if (column->IsHidden())
1579             continue;       // skip it!
1580
1581         width = column->GetWidth();
1582
1583         if (column == expander)
1584             width -= indent;
1585
1586         wxDataViewItem item = GetItemByRow( row );
1587         cell->PrepareForItem(model, item, column->GetModelColumn());
1588
1589         wxRect item_rect(x, 0, width, height);
1590         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1591
1592         // dc.SetClippingRegion( item_rect );
1593         cell->WXCallRender(item_rect, &dc, 0);
1594         // dc.DestroyClippingRegion();
1595
1596         x += width;
1597     }
1598
1599     return bitmap;
1600 }
1601
1602 #endif // wxUSE_DRAG_AND_DROP
1603
1604
1605 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1606 {
1607     wxDataViewModel *model = GetOwner()->GetModel();
1608     wxAutoBufferedPaintDC dc( this );
1609
1610 #ifdef __WXMSW__
1611     dc.SetBrush(GetOwner()->GetBackgroundColour());
1612     dc.SetPen( *wxTRANSPARENT_PEN );
1613     dc.DrawRectangle(GetClientSize());
1614 #endif
1615
1616     if ( IsEmpty() )
1617     {
1618         // No items to draw.
1619         return;
1620     }
1621
1622     // prepare the DC
1623     GetOwner()->PrepareDC( dc );
1624     dc.SetFont( GetFont() );
1625
1626     wxRect update = GetUpdateRegion().GetBox();
1627     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1628
1629     // compute which items needs to be redrawn
1630     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1631     unsigned int item_count =
1632         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1633             (int)(GetRowCount( ) - item_start));
1634     unsigned int item_last = item_start + item_count;
1635
1636     // Send the event to wxDataViewCtrl itself.
1637     wxWindow * const parent = GetParent();
1638     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1639     cache_event.SetEventObject(parent);
1640     cache_event.SetCache(item_start, item_last - 1);
1641     parent->ProcessWindowEvent(cache_event);
1642
1643     // compute which columns needs to be redrawn
1644     unsigned int cols = GetOwner()->GetColumnCount();
1645     if ( !cols )
1646     {
1647         // we assume that we have at least one column below and painting an
1648         // empty control is unnecessary anyhow
1649         return;
1650     }
1651
1652     unsigned int col_start = 0;
1653     unsigned int x_start;
1654     for (x_start = 0; col_start < cols; col_start++)
1655     {
1656         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1657         if (col->IsHidden())
1658             continue;      // skip it!
1659
1660         unsigned int w = col->GetWidth();
1661         if (x_start+w >= (unsigned int)update.x)
1662             break;
1663
1664         x_start += w;
1665     }
1666
1667     unsigned int col_last = col_start;
1668     unsigned int x_last = x_start;
1669     for (; col_last < cols; col_last++)
1670     {
1671         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1672         if (col->IsHidden())
1673             continue;      // skip it!
1674
1675         if (x_last > (unsigned int)update.GetRight())
1676             break;
1677
1678         x_last += col->GetWidth();
1679     }
1680
1681     // Draw horizontal rules if required
1682     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1683     {
1684         dc.SetPen(m_penRule);
1685         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1686
1687         for (unsigned int i = item_start; i <= item_last; i++)
1688         {
1689             int y = GetLineStart( i );
1690             dc.DrawLine(x_start, y, x_last, y);
1691         }
1692     }
1693
1694     // Draw vertical rules if required
1695     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1696     {
1697         dc.SetPen(m_penRule);
1698         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1699
1700         // NB: Vertical rules are drawn in the last pixel of a column so that
1701         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1702         //     consistency with MSW native list control. There's no vertical
1703         //     rule at the most-left side of the control.
1704
1705         int x = x_start - 1;
1706         for (unsigned int i = col_start; i < col_last; i++)
1707         {
1708             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1709             if (col->IsHidden())
1710                 continue;       // skip it
1711
1712             x += col->GetWidth();
1713
1714             dc.DrawLine(x, GetLineStart( item_start ),
1715                         x, GetLineStart( item_last ) );
1716         }
1717     }
1718
1719     // redraw the background for the items which are selected/current
1720     for (unsigned int item = item_start; item < item_last; item++)
1721     {
1722         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1723         if (selected || item == m_currentRow)
1724         {
1725             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1726             if (item == m_currentRow)
1727                 flags |= wxCONTROL_CURRENT;
1728             if (m_hasFocus)
1729                 flags |= wxCONTROL_FOCUSED;
1730
1731             wxRect rect( x_start, GetLineStart( item ),
1732                          x_last - x_start, GetLineHeight( item ) );
1733             wxRendererNative::Get().DrawItemSelectionRect
1734                                 (
1735                                     this,
1736                                     dc,
1737                                     rect,
1738                                     flags
1739                                 );
1740         }
1741     }
1742
1743 #if wxUSE_DRAG_AND_DROP
1744     if (m_dropHint)
1745     {
1746         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1747                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1748         dc.SetPen( *wxBLACK_PEN );
1749         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1750         dc.DrawRectangle( rect );
1751     }
1752 #endif // wxUSE_DRAG_AND_DROP
1753
1754     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1755     if (!expander)
1756     {
1757         // TODO-RTL: last column for RTL support
1758         expander = GetOwner()->GetColumnAt( 0 );
1759         GetOwner()->SetExpanderColumn(expander);
1760     }
1761
1762     // redraw all cells for all rows which must be repainted and all columns
1763     wxRect cell_rect;
1764     cell_rect.x = x_start;
1765     for (unsigned int i = col_start; i < col_last; i++)
1766     {
1767         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1768         wxDataViewRenderer *cell = col->GetRenderer();
1769         cell_rect.width = col->GetWidth();
1770
1771         if ( col->IsHidden() || cell_rect.width <= 0 )
1772             continue;       // skip it!
1773
1774         for (unsigned int item = item_start; item < item_last; item++)
1775         {
1776             // get the cell value and set it into the renderer
1777             wxDataViewTreeNode *node = NULL;
1778             wxDataViewItem dataitem;
1779
1780             if (!IsVirtualList())
1781             {
1782                 node = GetTreeNodeByRow(item);
1783                 if( node == NULL )
1784                     continue;
1785
1786                 dataitem = node->GetItem();
1787
1788                 // Skip all columns of "container" rows except the expander
1789                 // column itself unless HasContainerColumns() overrides this.
1790                 if ( col != GetOwner()->GetExpanderColumn() &&
1791                         model->IsContainer(dataitem) &&
1792                             !model->HasContainerColumns(dataitem) )
1793                     continue;
1794             }
1795             else
1796             {
1797                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1798             }
1799
1800             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1801
1802             // update cell_rect
1803             cell_rect.y = GetLineStart( item );
1804             cell_rect.height = GetLineHeight( item );
1805
1806             // deal with the expander
1807             int indent = 0;
1808             if ((!IsList()) && (col == expander))
1809             {
1810                 // Calculate the indent first
1811                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1812
1813                 // we reserve m_lineHeight of horizontal space for the expander
1814                 // but leave EXPANDER_MARGIN around the expander itself
1815                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1816
1817                 indent += m_lineHeight;
1818
1819                 // draw expander if needed and visible
1820                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1821                 {
1822                     dc.SetPen( m_penExpander );
1823                     dc.SetBrush( wxNullBrush );
1824
1825                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1826                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1827                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1828
1829                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1830
1831                     int flag = 0;
1832                     if ( m_underMouse == node )
1833                         flag |= wxCONTROL_CURRENT;
1834                     if ( node->IsOpen() )
1835                         flag |= wxCONTROL_EXPANDED;
1836
1837                     // ensure that we don't overflow the cell (which might
1838                     // happen if the column is very narrow)
1839                     wxDCClipper clip(dc, cell_rect);
1840
1841                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1842                 }
1843
1844                 // force the expander column to left-center align
1845                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1846             }
1847             if (node && !node->HasChildren())
1848             {
1849                 // Yes, if the node does not have any child, it must be a leaf which
1850                 // mean that it is a temporarily created by GetTreeNodeByRow
1851                 wxDELETE(node);
1852             }
1853
1854             wxRect item_rect = cell_rect;
1855             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1856
1857             // account for the tree indent (harmless if we're not indented)
1858             item_rect.x += indent;
1859             item_rect.width -= indent;
1860
1861             if ( item_rect.width <= 0 )
1862                 continue;
1863
1864             int state = 0;
1865             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1866                 state |= wxDATAVIEW_CELL_SELECTED;
1867
1868             // TODO: it would be much more efficient to create a clipping
1869             //       region for the entire column being rendered (in the OnPaint
1870             //       of wxDataViewMainWindow) instead of a single clip region for
1871             //       each cell. However it would mean that each renderer should
1872             //       respect the given wxRect's top & bottom coords, eventually
1873             //       violating only the left & right coords - however the user can
1874             //       make its own renderer and thus we cannot be sure of that.
1875             wxDCClipper clip(dc, item_rect);
1876
1877             cell->WXCallRender(item_rect, &dc, state);
1878         }
1879
1880         cell_rect.x += cell_rect.width;
1881     }
1882 }
1883
1884 void wxDataViewMainWindow::OnRenameTimer()
1885 {
1886     // We have to call this here because changes may just have
1887     // been made and no screen update taken place.
1888     if ( m_dirty )
1889     {
1890         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1891         //       (needs to be tested!)
1892         wxSafeYield();
1893     }
1894
1895     wxDataViewItem item = GetItemByRow( m_currentRow );
1896
1897     wxRect labelRect = GetItemRect(item, m_currentCol);
1898
1899     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1900 }
1901
1902 //-----------------------------------------------------------------------------
1903 // Helper class for do operation on the tree node
1904 //-----------------------------------------------------------------------------
1905 class DoJob
1906 {
1907 public:
1908     DoJob() { }
1909     virtual ~DoJob() { }
1910
1911     // The return value control how the tree-walker tranverse the tree
1912     // 0: Job done, stop tranverse and return
1913     // 1: Ignore the current node's subtree and continue
1914     // 2: Job not done, continue
1915     enum  { OK = 0 , IGR = 1, CONT = 2 };
1916     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1917     virtual int operator() ( void * n ) = 0;
1918 };
1919
1920 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1921 {
1922     if( node==NULL )
1923         return false;
1924
1925     switch( func( node ) )
1926     {
1927         case DoJob::OK :
1928             return true;
1929         case DoJob::IGR:
1930             return false;
1931         case DoJob::CONT:
1932         default:
1933             ;
1934     }
1935
1936     const wxDataViewTreeNodes& nodes = node->GetNodes();
1937     const wxDataViewTreeLeaves& leaves = node->GetChildren();
1938
1939     int len_nodes = nodes.GetCount();
1940     int len = leaves.GetCount();
1941     int i = 0, nodes_i = 0;
1942
1943     for(; i < len; i ++ )
1944     {
1945         void * n = leaves[i];
1946         if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
1947         {
1948             wxDataViewTreeNode * nd = nodes[nodes_i];
1949             nodes_i++;
1950
1951             if( Walker( nd , func ) )
1952                 return true;
1953
1954         }
1955         else
1956             switch( func( n ) )
1957             {
1958                 case DoJob::OK :
1959                     return true;
1960                 case DoJob::IGR:
1961                     continue;
1962                 case DoJob::CONT:
1963                 default:
1964                 ;
1965             }
1966     }
1967     return false;
1968 }
1969
1970 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
1971 {
1972     GetOwner()->InvalidateColBestWidths();
1973
1974     if (IsVirtualList())
1975     {
1976         wxDataViewVirtualListModel *list_model =
1977             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1978         m_count = list_model->GetCount();
1979         UpdateDisplay();
1980         return true;
1981     }
1982
1983     SortPrepare();
1984
1985     wxDataViewTreeNode * node;
1986     node = FindNode(parent);
1987
1988     if( node == NULL )
1989         return false;
1990
1991     node->SetHasChildren( true );
1992
1993     if( g_model->IsContainer( item ) )
1994     {
1995         wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
1996         newnode->SetItem(item);
1997         newnode->SetHasChildren( true );
1998         node->AddNode( newnode);
1999     }
2000     else
2001         node->AddLeaf( item.GetID() );
2002
2003     node->ChangeSubTreeCount(1);
2004
2005     m_count = -1;
2006     UpdateDisplay();
2007
2008     return true;
2009 }
2010
2011 static void DestroyTreeHelper( wxDataViewTreeNode * node);
2012
2013 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2014                                        const wxDataViewItem& item)
2015 {
2016     GetOwner()->InvalidateColBestWidths();
2017
2018     if (IsVirtualList())
2019     {
2020         wxDataViewVirtualListModel *list_model =
2021             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
2022         m_count = list_model->GetCount();
2023
2024         if ( !m_selection.empty() )
2025         {
2026             const int row = GetRowByItem(item);
2027
2028             const size_t selCount = m_selection.size();
2029             for ( size_t i = 0; i < selCount; i++ )
2030             {
2031                 if ( m_selection[i] > (unsigned)row )
2032                     m_selection[i]--;
2033             }
2034
2035             int itemRow = m_selection.Index(row);
2036             if ( itemRow != wxNOT_FOUND )
2037                 m_selection.RemoveAt(itemRow);
2038         }
2039
2040     }
2041     else // general case
2042     {
2043         wxDataViewTreeNode * node = FindNode(parent);
2044         int itemPosInNode = node ? node->GetChildren().Index(item.GetID()) : wxNOT_FOUND;
2045
2046         // Notice that it is possible that the item being deleted is not in the
2047         // tree at all, for example we could be deleting a never shown (because
2048         // collapsed) item in a tree model. So it's not an error if we don't know
2049         // about this item, just return without doing anything then.
2050         if ( !node || itemPosInNode == wxNOT_FOUND )
2051             return false;
2052
2053         bool isContainer = false;
2054         wxDataViewTreeNode *itemNode = NULL;
2055
2056         const wxDataViewTreeNodes nds = node->GetNodes();
2057         for (size_t i = 0; i < nds.GetCount(); i ++)
2058         {
2059             if (nds[i]->GetItem() == item)
2060             {
2061                 isContainer = true;
2062                 itemNode = nds[i];
2063                 break;
2064             }
2065         }
2066
2067         // Delete the item from wxDataViewTreeNode representation:
2068         int itemsDeleted = 1;
2069         node->GetChildren().Remove( item.GetID() );
2070
2071         if( isContainer )
2072         {
2073             wxDataViewTreeNode *n = node->FindItemAsNode(item);
2074
2075             wxCHECK_MSG( n != NULL, false, "item not found" );
2076
2077             node->GetNodes().Remove( n );
2078             itemsDeleted += n->GetSubTreeCount();
2079             ::DestroyTreeHelper(n);
2080         }
2081
2082         // Make the row number invalid and get a new valid one when user call GetRowCount
2083         m_count = -1;
2084         node->ChangeSubTreeCount(-itemsDeleted);
2085
2086         // Update selection by removing 'item' and its entire children tree from the selection.
2087         if ( !m_selection.empty() )
2088         {
2089             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2090             // the parent ('node') and position in its list of children
2091             int itemRow;
2092             if ( itemPosInNode == 0 )
2093             {
2094                 // 1st child, row number is that of the parent node + 1
2095                 itemRow = GetRowByItem(node->GetItem()) + 1;
2096             }
2097             else
2098             {
2099                 // row number is that of the sibling above 'item' + its subtree if any + 1
2100                 const wxDataViewItem sibling = wxDataViewItem(node->GetChildren()[itemPosInNode - 1]);
2101                 const wxDataViewTreeNode *siblingNode = node->FindItemAsNode(sibling);
2102
2103                 itemRow = GetRowByItem(sibling);
2104                 if ( siblingNode )
2105                     itemRow += siblingNode->GetSubTreeCount();
2106                 itemRow += 1;
2107             }
2108
2109             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2110
2111             const size_t numSelections = m_selection.size();
2112             for ( size_t i = 0; i < numSelections; ++i )
2113             {
2114                 const int s = m_selection[i];
2115                 if ( s < itemRow )
2116                     newsel.push_back(s);
2117                 else if ( s >= itemRow + itemsDeleted )
2118                     newsel.push_back(s - itemsDeleted);
2119                 // else: deleted item, remove from selection
2120             }
2121
2122             m_selection = newsel;
2123         }
2124     }
2125
2126     // Change the current row to the last row if the current exceed the max row number
2127     if( m_currentRow > GetRowCount() )
2128         ChangeCurrentRow(m_count - 1);
2129
2130     UpdateDisplay();
2131
2132     return true;
2133 }
2134
2135 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2136 {
2137     GetOwner()->InvalidateColBestWidths();
2138
2139     SortPrepare();
2140     g_model->Resort();
2141
2142     // Send event
2143     wxWindow *parent = GetParent();
2144     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2145     le.SetEventObject(parent);
2146     le.SetModel(GetOwner()->GetModel());
2147     le.SetItem(item);
2148     parent->GetEventHandler()->ProcessEvent(le);
2149
2150     return true;
2151 }
2152
2153 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2154 {
2155     int view_column = -1;
2156     unsigned int n_col = m_owner->GetColumnCount();
2157     for (unsigned i = 0; i < n_col; i++)
2158     {
2159         wxDataViewColumn *column = m_owner->GetColumn( i );
2160         if (column->GetModelColumn() == model_column)
2161         {
2162             view_column = (int) i;
2163             break;
2164         }
2165     }
2166     if (view_column == -1)
2167         return false;
2168
2169     GetOwner()->InvalidateColBestWidth(view_column);
2170
2171     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2172 /*#define MAX_VIRTUAL_WIDTH       100000
2173
2174     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2175     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2176     Refresh( true, &rect );
2177
2178     return true;
2179 */
2180     SortPrepare();
2181     g_model->Resort();
2182
2183     // Send event
2184     wxWindow *parent = GetParent();
2185     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2186     le.SetEventObject(parent);
2187     le.SetModel(GetOwner()->GetModel());
2188     le.SetItem(item);
2189     le.SetColumn(view_column);
2190     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2191     parent->GetEventHandler()->ProcessEvent(le);
2192
2193     return true;
2194 }
2195
2196 bool wxDataViewMainWindow::Cleared()
2197 {
2198     GetOwner()->InvalidateColBestWidths();
2199
2200     DestroyTree();
2201     m_selection.Clear();
2202
2203     SortPrepare();
2204     BuildTree( GetOwner()->GetModel() );
2205
2206     UpdateDisplay();
2207
2208     return true;
2209 }
2210
2211 void wxDataViewMainWindow::UpdateDisplay()
2212 {
2213     m_dirty = true;
2214     m_underMouse = NULL;
2215 }
2216
2217 void wxDataViewMainWindow::OnInternalIdle()
2218 {
2219     wxWindow::OnInternalIdle();
2220
2221     if (m_dirty)
2222     {
2223         RecalculateDisplay();
2224         m_dirty = false;
2225     }
2226 }
2227
2228 void wxDataViewMainWindow::RecalculateDisplay()
2229 {
2230     wxDataViewModel *model = GetOwner()->GetModel();
2231     if (!model)
2232     {
2233         Refresh();
2234         return;
2235     }
2236
2237     int width = GetEndOfLastCol();
2238     int height = GetLineStart( GetRowCount() );
2239
2240     SetVirtualSize( width, height );
2241     GetOwner()->SetScrollRate( 10, m_lineHeight );
2242
2243     Refresh();
2244 }
2245
2246 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2247 {
2248     m_underMouse = NULL;
2249
2250     wxWindow::ScrollWindow( dx, dy, rect );
2251
2252     if (GetOwner()->m_headerArea)
2253         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2254 }
2255
2256 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2257 {
2258     m_underMouse = NULL;
2259
2260     int x, y;
2261     m_owner->GetScrollPixelsPerUnit( &x, &y );
2262     int sy = GetLineStart( rows )/y;
2263     int sx = 0;
2264     if( column != -1 )
2265     {
2266         wxRect rect = GetClientRect();
2267         int colnum = 0;
2268         int x_start, w = 0;
2269         int xx, yy, xe;
2270         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2271         for (x_start = 0; colnum < column; colnum++)
2272         {
2273             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2274             if (col->IsHidden())
2275                 continue;      // skip it!
2276
2277             w = col->GetWidth();
2278             x_start += w;
2279         }
2280
2281         int x_end = x_start + w;
2282         xe = xx + rect.width;
2283         if( x_end > xe )
2284         {
2285             sx = ( xx + x_end - xe )/x;
2286         }
2287         if( x_start < xx )
2288         {
2289             sx = x_start/x;
2290         }
2291     }
2292     m_owner->Scroll( sx, sy );
2293 }
2294
2295 int wxDataViewMainWindow::GetCountPerPage() const
2296 {
2297     wxSize size = GetClientSize();
2298     return size.y / m_lineHeight;
2299 }
2300
2301 int wxDataViewMainWindow::GetEndOfLastCol() const
2302 {
2303     int width = 0;
2304     unsigned int i;
2305     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2306     {
2307         const wxDataViewColumn *c =
2308             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2309
2310         if (!c->IsHidden())
2311             width += c->GetWidth();
2312     }
2313     return width;
2314 }
2315
2316 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2317 {
2318     int x = 0;
2319     int y = 0;
2320     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2321
2322     return GetLineAt( y );
2323 }
2324
2325 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2326 {
2327     wxSize client_size = GetClientSize();
2328     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2329                                     &client_size.x, &client_size.y );
2330
2331     // we should deal with the pixel here
2332     unsigned int row = GetLineAt(client_size.y) - 1;
2333
2334     return wxMin( GetRowCount()-1, row );
2335 }
2336
2337 unsigned int wxDataViewMainWindow::GetRowCount()
2338 {
2339     if ( m_count == -1 )
2340     {
2341         m_count = RecalculateCount();
2342         UpdateDisplay();
2343     }
2344     return m_count;
2345 }
2346
2347 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2348 {
2349     m_currentRow = row;
2350
2351     // send event
2352 }
2353
2354 void wxDataViewMainWindow::SelectAllRows( bool on )
2355 {
2356     if (IsEmpty())
2357         return;
2358
2359     if (on)
2360     {
2361         m_selection.Clear();
2362         for (unsigned int i = 0; i < GetRowCount(); i++)
2363             m_selection.Add( i );
2364         Refresh();
2365     }
2366     else
2367     {
2368         unsigned int first_visible = GetFirstVisibleRow();
2369         unsigned int last_visible = GetLastVisibleRow();
2370         unsigned int i;
2371         for (i = 0; i < m_selection.GetCount(); i++)
2372         {
2373             unsigned int row = m_selection[i];
2374             if ((row >= first_visible) && (row <= last_visible))
2375                 RefreshRow( row );
2376         }
2377         m_selection.Clear();
2378     }
2379 }
2380
2381 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2382 {
2383     if (m_selection.Index( row ) == wxNOT_FOUND)
2384     {
2385         if (on)
2386         {
2387             m_selection.Add( row );
2388             RefreshRow( row );
2389         }
2390     }
2391     else
2392     {
2393         if (!on)
2394         {
2395             m_selection.Remove( row );
2396             RefreshRow( row );
2397         }
2398     }
2399 }
2400
2401 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2402 {
2403     if (from > to)
2404     {
2405         unsigned int tmp = from;
2406         from = to;
2407         to = tmp;
2408     }
2409
2410     unsigned int i;
2411     for (i = from; i <= to; i++)
2412     {
2413         if (m_selection.Index( i ) == wxNOT_FOUND)
2414         {
2415             if (on)
2416                 m_selection.Add( i );
2417         }
2418         else
2419         {
2420             if (!on)
2421                 m_selection.Remove( i );
2422         }
2423     }
2424     RefreshRows( from, to );
2425 }
2426
2427 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2428 {
2429     for (size_t i=0; i < aSelections.GetCount(); i++)
2430     {
2431         int n = aSelections[i];
2432
2433         m_selection.Add( n );
2434         RefreshRow( n );
2435     }
2436 }
2437
2438 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2439 {
2440     if (m_selection.Index( row ) == wxNOT_FOUND)
2441         m_selection.Add( row );
2442     else
2443         m_selection.Remove( row );
2444     RefreshRow( row );
2445 }
2446
2447 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2448 {
2449     return (m_selection.Index( row ) != wxNOT_FOUND);
2450 }
2451
2452 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2453 {
2454     wxWindow *parent = GetParent();
2455     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2456
2457     le.SetEventObject(parent);
2458     le.SetModel(GetOwner()->GetModel());
2459     le.SetItem( item );
2460
2461     parent->GetEventHandler()->ProcessEvent(le);
2462 }
2463
2464 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2465 {
2466     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2467     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2468
2469     wxSize client_size = GetClientSize();
2470     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2471     wxRect intersect_rect = client_rect.Intersect( rect );
2472     if (intersect_rect.width > 0)
2473         Refresh( true, &intersect_rect );
2474 }
2475
2476 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2477 {
2478     if (from > to)
2479     {
2480         unsigned int tmp = to;
2481         to = from;
2482         from = tmp;
2483     }
2484
2485     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2486     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2487
2488     wxSize client_size = GetClientSize();
2489     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2490     wxRect intersect_rect = client_rect.Intersect( rect );
2491     if (intersect_rect.width > 0)
2492         Refresh( true, &intersect_rect );
2493 }
2494
2495 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2496 {
2497     wxSize client_size = GetClientSize();
2498     int start = GetLineStart( firstRow );
2499     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2500     if (start > client_size.y) return;
2501
2502     wxRect rect( 0, start, client_size.x, client_size.y - start );
2503
2504     Refresh( true, &rect );
2505 }
2506
2507 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2508 {
2509     wxCHECK_RET( newCurrent < GetRowCount(),
2510                 wxT("invalid item index in OnArrowChar()") );
2511
2512     // if there is no selection, we cannot move it anywhere
2513     if (!HasCurrentRow())
2514         return;
2515
2516     unsigned int oldCurrent = m_currentRow;
2517
2518     // in single selection we just ignore Shift as we can't select several
2519     // items anyhow
2520     if ( event.ShiftDown() && !IsSingleSel() )
2521     {
2522         RefreshRow( oldCurrent );
2523
2524         ChangeCurrentRow( newCurrent );
2525
2526         // select all the items between the old and the new one
2527         if ( oldCurrent > newCurrent )
2528         {
2529             newCurrent = oldCurrent;
2530             oldCurrent = m_currentRow;
2531         }
2532
2533         SelectRows( oldCurrent, newCurrent, true );
2534         if (oldCurrent!=newCurrent)
2535             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2536     }
2537     else // !shift
2538     {
2539         RefreshRow( oldCurrent );
2540
2541         // all previously selected items are unselected unless ctrl is held
2542         if ( !event.ControlDown() )
2543             SelectAllRows(false);
2544
2545         ChangeCurrentRow( newCurrent );
2546
2547         if ( !event.ControlDown() )
2548         {
2549             SelectRow( m_currentRow, true );
2550             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2551         }
2552         else
2553             RefreshRow( m_currentRow );
2554     }
2555
2556     GetOwner()->EnsureVisible( m_currentRow, -1 );
2557 }
2558
2559 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2560 {
2561     wxRect rect;
2562     rect.x = 0;
2563     rect.y = GetLineStart( row );
2564     rect.width = GetEndOfLastCol();
2565     rect.height = GetLineHeight( row );
2566
2567     return rect;
2568 }
2569
2570 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2571 {
2572     const wxDataViewModel *model = GetOwner()->GetModel();
2573
2574     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2575     {
2576         // TODO make more efficient
2577
2578         int start = 0;
2579
2580         unsigned int r;
2581         for (r = 0; r < row; r++)
2582         {
2583             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2584             if (!node) return start;
2585
2586             wxDataViewItem item = node->GetItem();
2587
2588             if (node && !node->HasChildren())
2589             {
2590                 // Yes, if the node does not have any child, it must be a leaf which
2591                 // mean that it is a temporarily created by GetTreeNodeByRow
2592                 wxDELETE(node);
2593             }
2594
2595             unsigned int cols = GetOwner()->GetColumnCount();
2596             unsigned int col;
2597             int height = m_lineHeight;
2598             for (col = 0; col < cols; col++)
2599             {
2600                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2601                 if (column->IsHidden())
2602                     continue;      // skip it!
2603
2604                 if ((col != 0) &&
2605                     model->IsContainer(item) &&
2606                     !model->HasContainerColumns(item))
2607                     continue;      // skip it!
2608
2609                 wxDataViewRenderer *renderer =
2610                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2611                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2612
2613                 height = wxMax( height, renderer->GetSize().y );
2614             }
2615
2616             start += height;
2617         }
2618
2619         return start;
2620     }
2621     else
2622     {
2623         return row * m_lineHeight;
2624     }
2625 }
2626
2627 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2628 {
2629     const wxDataViewModel *model = GetOwner()->GetModel();
2630
2631     // check for the easy case first
2632     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2633         return y / m_lineHeight;
2634
2635     // TODO make more efficient
2636     unsigned int row = 0;
2637     unsigned int yy = 0;
2638     for (;;)
2639     {
2640         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2641         if (!node)
2642         {
2643             // not really correct...
2644             return row + ((y-yy) / m_lineHeight);
2645         }
2646
2647         wxDataViewItem item = node->GetItem();
2648
2649         if (node && !node->HasChildren())
2650         {
2651             // Yes, if the node does not have any child, it must be a leaf which
2652             // mean that it is a temporarily created by GetTreeNodeByRow
2653             wxDELETE(node);
2654         }
2655
2656         unsigned int cols = GetOwner()->GetColumnCount();
2657         unsigned int col;
2658         int height = m_lineHeight;
2659         for (col = 0; col < cols; col++)
2660         {
2661             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2662             if (column->IsHidden())
2663                 continue;      // skip it!
2664
2665             if ((col != 0) &&
2666                 model->IsContainer(item) &&
2667                 !model->HasContainerColumns(item))
2668                 continue;      // skip it!
2669
2670             wxDataViewRenderer *renderer =
2671                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2672             renderer->PrepareForItem(model, item, column->GetModelColumn());
2673
2674             height = wxMax( height, renderer->GetSize().y );
2675         }
2676
2677         yy += height;
2678         if (y < yy)
2679             return row;
2680
2681         row++;
2682     }
2683 }
2684
2685 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2686 {
2687     const wxDataViewModel *model = GetOwner()->GetModel();
2688
2689     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2690     {
2691         wxASSERT( !IsVirtualList() );
2692
2693         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2694         // wxASSERT( node );
2695         if (!node) return m_lineHeight;
2696
2697         wxDataViewItem item = node->GetItem();
2698
2699         if (node && !node->HasChildren())
2700         {
2701                 // Yes, if the node does not have any child, it must be a leaf which
2702                 // mean that it is a temporarily created by GetTreeNodeByRow
2703             wxDELETE(node);
2704         }
2705
2706         int height = m_lineHeight;
2707
2708         unsigned int cols = GetOwner()->GetColumnCount();
2709         unsigned int col;
2710         for (col = 0; col < cols; col++)
2711         {
2712             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2713             if (column->IsHidden())
2714                 continue;      // skip it!
2715
2716             if ((col != 0) &&
2717                 model->IsContainer(item) &&
2718                 !model->HasContainerColumns(item))
2719                 continue;      // skip it!
2720
2721             wxDataViewRenderer *renderer =
2722                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2723             renderer->PrepareForItem(model, item, column->GetModelColumn());
2724
2725             height = wxMax( height, renderer->GetSize().y );
2726         }
2727
2728         return height;
2729     }
2730     else
2731     {
2732         return m_lineHeight;
2733     }
2734 }
2735
2736 class RowToItemJob: public DoJob
2737 {
2738 public:
2739     RowToItemJob( unsigned int row , int current )
2740         { this->row = row; this->current = current; }
2741     virtual ~RowToItemJob() {}
2742
2743     virtual int operator() ( wxDataViewTreeNode * node )
2744     {
2745         current ++;
2746         if( current == static_cast<int>(row))
2747         {
2748             ret = node->GetItem();
2749             return DoJob::OK;
2750         }
2751
2752         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2753         {
2754             current += node->GetSubTreeCount();
2755             return  DoJob::IGR;
2756         }
2757         else
2758         {
2759             // If the current has no child node, we can find the desired item of the row
2760             // number directly.
2761             // This if can speed up finding in some case, and will has a very good effect
2762             // when it comes to list view
2763             if( node->GetNodes().GetCount() == 0)
2764             {
2765                 int index = static_cast<int>(row) - current - 1;
2766                 ret = wxDataViewItem(node->GetChildren().Item( index ));
2767                 return DoJob::OK;
2768             }
2769             return DoJob::CONT;
2770         }
2771     }
2772
2773     virtual int operator() ( void * n )
2774     {
2775         current ++;
2776         if( current == static_cast<int>(row))
2777         {
2778             ret = wxDataViewItem( n );
2779             return DoJob::OK;
2780         }
2781         return DoJob::CONT;
2782     }
2783
2784     wxDataViewItem GetResult() const
2785         { return ret; }
2786
2787 private:
2788     unsigned int row;
2789     int current;
2790     wxDataViewItem ret;
2791 };
2792
2793 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2794 {
2795     if (IsVirtualList())
2796     {
2797         return wxDataViewItem( wxUIntToPtr(row+1) );
2798     }
2799     else
2800     {
2801         RowToItemJob job( row, -2 );
2802         Walker( m_root , job );
2803         return job.GetResult();
2804     }
2805 }
2806
2807 class RowToTreeNodeJob: public DoJob
2808 {
2809 public:
2810     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2811     {
2812         this->row = row;
2813         this->current = current;
2814         ret = NULL;
2815         parent = node;
2816     }
2817     virtual ~RowToTreeNodeJob(){ }
2818
2819     virtual int operator() ( wxDataViewTreeNode * node )
2820     {
2821         current ++;
2822         if( current == static_cast<int>(row))
2823         {
2824             ret = node;
2825             return DoJob::OK;
2826         }
2827
2828         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2829         {
2830             current += node->GetSubTreeCount();
2831             return  DoJob::IGR;
2832         }
2833         else
2834         {
2835             parent = node;
2836
2837             // If the current node has no children, we can find the desired item of the
2838             // row number directly.
2839             // This if can speed up finding in some case, and will have a very good
2840             // effect for list views.
2841             if( node->GetNodes().GetCount() == 0)
2842             {
2843                 int index = static_cast<int>(row) - current - 1;
2844                 void * n = node->GetChildren().Item( index );
2845                 ret = new wxDataViewTreeNode( parent );
2846                 ret->SetItem( wxDataViewItem( n ));
2847                 ret->SetHasChildren(false);
2848                 return DoJob::OK;
2849             }
2850             return DoJob::CONT;
2851         }
2852     }
2853
2854     virtual int operator() ( void * n )
2855     {
2856         current ++;
2857         if( current == static_cast<int>(row))
2858         {
2859             ret = new wxDataViewTreeNode( parent );
2860             ret->SetItem( wxDataViewItem( n ));
2861             ret->SetHasChildren(false);
2862             return DoJob::OK;
2863         }
2864
2865         return DoJob::CONT;
2866     }
2867
2868     wxDataViewTreeNode * GetResult() const
2869         { return ret; }
2870
2871 private:
2872     unsigned int row;
2873     int current;
2874     wxDataViewTreeNode * ret;
2875     wxDataViewTreeNode * parent;
2876 };
2877
2878 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2879 {
2880     wxASSERT( !IsVirtualList() );
2881
2882     RowToTreeNodeJob job( row , -2, m_root );
2883     Walker( m_root , job );
2884     return job.GetResult();
2885 }
2886
2887 wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type,
2888                                                          const wxDataViewItem & item )
2889 {
2890     wxWindow *parent = GetParent();
2891     wxDataViewEvent le(type, parent->GetId());
2892
2893     le.SetEventObject(parent);
2894     le.SetModel(GetOwner()->GetModel());
2895     le.SetItem( item );
2896
2897     parent->GetEventHandler()->ProcessEvent(le);
2898     return le;
2899 }
2900
2901 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2902 {
2903     if (IsList())
2904         return false;
2905
2906     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2907     if (!node)
2908         return false;
2909
2910     if (!node->HasChildren())
2911     {
2912         delete node;
2913         return false;
2914     }
2915
2916     return node->IsOpen();
2917 }
2918
2919 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2920 {
2921     if (IsList())
2922         return false;
2923
2924     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2925     if (!node)
2926         return false;
2927
2928     if (!node->HasChildren())
2929     {
2930         delete node;
2931         return false;
2932     }
2933
2934     return true;
2935 }
2936
2937 void wxDataViewMainWindow::Expand( unsigned int row )
2938 {
2939     if (IsList())
2940         return;
2941
2942     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2943     if (!node)
2944         return;
2945
2946     if (!node->HasChildren())
2947     {
2948         delete node;
2949         return;
2950     }
2951
2952             if (!node->IsOpen())
2953             {
2954                 wxDataViewEvent e =
2955                     SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem());
2956
2957                 // Check if the user prevent expanding
2958                 if( e.GetSkipped() )
2959                     return;
2960
2961                 node->ToggleOpen();
2962
2963                 // build the children of current node
2964                 if( node->GetChildrenNumber() == 0 )
2965                 {
2966                     SortPrepare();
2967                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2968                 }
2969
2970                 // By expanding the node all row indices that are currently in the selection list
2971                 // and are greater than our node have become invalid. So we have to correct that now.
2972                 const unsigned rowAdjustment = node->GetSubTreeCount();
2973                 for(unsigned i=0; i<m_selection.size(); ++i)
2974                 {
2975                     const unsigned testRow = m_selection[i];
2976                     // all rows above us are not affected, so skip them
2977                     if(testRow <= row)
2978                         continue;
2979
2980                     m_selection[i] += rowAdjustment;
2981                 }
2982
2983                 if(m_currentRow > row)
2984                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2985
2986                 m_count = -1;
2987                 UpdateDisplay();
2988                 // Send the expanded event
2989                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2990             }
2991 }
2992
2993 void wxDataViewMainWindow::Collapse(unsigned int row)
2994 {
2995     if (IsList())
2996         return;
2997
2998     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2999     if (!node)
3000         return;
3001
3002     if (!node->HasChildren())
3003     {
3004         delete node;
3005         return;
3006     }
3007
3008         if (node->IsOpen())
3009         {
3010             wxDataViewEvent e =
3011                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
3012             if( e.GetSkipped() )
3013                 return;
3014
3015             // Find out if there are selected items below the current node.
3016             bool selectCollapsingRow = false;
3017             const unsigned rowAdjustment = node->GetSubTreeCount();
3018             unsigned maxRowToBeTested = row + rowAdjustment;
3019             for(unsigned i=0; i<m_selection.size(); ++i)
3020             {
3021                 const unsigned testRow = m_selection[i];
3022                 if(testRow > row && testRow <= maxRowToBeTested)
3023                 {
3024                     selectCollapsingRow = true;
3025                     // get out as soon as we have found a node that is selected
3026                     break;
3027                 }
3028             }
3029
3030             node->ToggleOpen();
3031
3032             // If the node to be closed has selected items the user won't see those any longer.
3033             // We select the collapsing node in this case.
3034             if(selectCollapsingRow)
3035             {
3036                 SelectAllRows(false);
3037                 ChangeCurrentRow(row);
3038                 SelectRow(row, true);
3039                 SendSelectionChangedEvent(GetItemByRow(row));
3040             }
3041             else
3042             {
3043                 // if there were no selected items below our node we still need to "fix" the
3044                 // selection list to adjust for the changing of the row indices.
3045                 // We actually do the opposite of what we are doing in Expand().
3046                 for(unsigned i=0; i<m_selection.size(); ++i)
3047                 {
3048                     const unsigned testRow = m_selection[i];
3049                     // all rows above us are not affected, so skip them
3050                     if(testRow <= row)
3051                         continue;
3052
3053                     m_selection[i] -= rowAdjustment;
3054                 }
3055
3056                 // if the "current row" is being collapsed away we change it to the current row ;-)
3057                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3058                     ChangeCurrentRow(row);
3059                 else if(m_currentRow > row)
3060                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3061             }
3062
3063             m_count = -1;
3064             UpdateDisplay();
3065             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3066         }
3067 }
3068
3069 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3070 {
3071     const wxDataViewModel * model = GetOwner()->GetModel();
3072     if( model == NULL )
3073         return NULL;
3074
3075     if (!item.IsOk())
3076         return m_root;
3077
3078     // Compose the parent-chain for the item we are looking for
3079     wxVector<wxDataViewItem> parentChain;
3080     wxDataViewItem it( item );
3081     while( it.IsOk() )
3082     {
3083         parentChain.push_back(it);
3084         it = model->GetParent(it);
3085     }
3086
3087     // Find the item along the parent-chain.
3088     // This algorithm is designed to speed up the node-finding method
3089     wxDataViewTreeNode* node = m_root;
3090     for( unsigned iter = parentChain.size()-1; ; --iter )
3091     {
3092         if( node->HasChildren() )
3093         {
3094             if( node->GetChildrenNumber() == 0 )
3095             {
3096                 SortPrepare();
3097                 ::BuildTreeHelper(model, node->GetItem(), node);
3098             }
3099
3100             const wxDataViewTreeNodes& nodes = node->GetNodes();
3101             bool found = false;
3102
3103             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3104             {
3105                 wxDataViewTreeNode* currentNode = nodes[i];
3106                 if (currentNode->GetItem() == parentChain[iter])
3107                 {
3108                     if (currentNode->GetItem() == item)
3109                         return currentNode;
3110
3111                     node = currentNode;
3112                     found = true;
3113                     break;
3114                 }
3115             }
3116             if (!found)
3117                 return NULL;
3118         }
3119         else
3120             return NULL;
3121
3122         if ( !iter )
3123             break;
3124     }
3125     return NULL;
3126 }
3127
3128 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3129                                     wxDataViewColumn* &column )
3130 {
3131     wxDataViewColumn *col = NULL;
3132     unsigned int cols = GetOwner()->GetColumnCount();
3133     unsigned int colnum = 0;
3134     int x, y;
3135     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3136     for (unsigned x_start = 0; colnum < cols; colnum++)
3137     {
3138         col = GetOwner()->GetColumnAt(colnum);
3139         if (col->IsHidden())
3140             continue;      // skip it!
3141
3142         unsigned int w = col->GetWidth();
3143         if (x_start+w >= (unsigned int)x)
3144             break;
3145
3146         x_start += w;
3147     }
3148
3149     column = col;
3150     item = GetItemByRow( GetLineAt( y ) );
3151 }
3152
3153 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3154                                           const wxDataViewColumn* column )
3155 {
3156     int xpos = 0;
3157     int width = 0;
3158
3159     unsigned int cols = GetOwner()->GetColumnCount();
3160     // If column is null the loop will compute the combined width of all columns.
3161     // Otherwise, it will compute the x position of the column we are looking for.
3162     for (unsigned int i = 0; i < cols; i++)
3163     {
3164         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3165
3166         if (col == column)
3167             break;
3168
3169         if (col->IsHidden())
3170             continue;      // skip it!
3171
3172         xpos += col->GetWidth();
3173         width += col->GetWidth();
3174     }
3175
3176     if(column != 0)
3177     {
3178         // If we have a column, we need can get its width directly.
3179         if(column->IsHidden())
3180             width = 0;
3181         else
3182             width = column->GetWidth();
3183
3184     }
3185     else
3186     {
3187         // If we have no column, we reset the x position back to zero.
3188         xpos = 0;
3189     }
3190
3191     // we have to take an expander column into account and compute its indentation
3192     // to get the correct x position where the actual text is
3193     int indent = 0;
3194     int row = GetRowByItem(item);
3195     if (!IsList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3196     {
3197         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3198         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3199         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3200
3201         if(!node->HasChildren())
3202             delete node;
3203     }
3204
3205     wxRect itemRect( xpos + indent,
3206                      GetLineStart( row ),
3207                      width - indent,
3208                      GetLineHeight( row ) );
3209
3210     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3211                                       &itemRect.x, &itemRect.y );
3212
3213     return itemRect;
3214 }
3215
3216 int wxDataViewMainWindow::RecalculateCount()
3217 {
3218     if (IsVirtualList())
3219     {
3220         wxDataViewVirtualListModel *list_model =
3221             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3222
3223         return list_model->GetCount();
3224     }
3225     else
3226     {
3227         return m_root->GetSubTreeCount();
3228     }
3229 }
3230
3231 class ItemToRowJob : public DoJob
3232 {
3233 public:
3234     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3235         : m_iter(iter),
3236         item(item_)
3237     {
3238         ret = -1;
3239     }
3240
3241     // Maybe binary search will help to speed up this process
3242     virtual int operator() ( wxDataViewTreeNode * node)
3243     {
3244         ret ++;
3245         if( node->GetItem() == item )
3246         {
3247             return DoJob::OK;
3248         }
3249
3250         if( node->GetItem() == *m_iter )
3251         {
3252             m_iter++;
3253             return DoJob::CONT;
3254         }
3255         else
3256         {
3257             ret += node->GetSubTreeCount();
3258             return DoJob::IGR;
3259         }
3260
3261     }
3262
3263     virtual int operator() ( void * n )
3264     {
3265         ret ++;
3266         if( n == item.GetID() )
3267             return DoJob::OK;
3268         return DoJob::CONT;
3269     }
3270
3271     // the row number is begin from zero
3272     int GetResult() const
3273         { return ret -1; }
3274
3275 private:
3276     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3277     wxDataViewItem item;
3278     int ret;
3279
3280 };
3281
3282 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3283 {
3284     const wxDataViewModel * model = GetOwner()->GetModel();
3285     if( model == NULL )
3286         return -1;
3287
3288     if (IsVirtualList())
3289     {
3290         return wxPtrToUInt( item.GetID() ) -1;
3291     }
3292     else
3293     {
3294         if( !item.IsOk() )
3295             return -1;
3296
3297         // Compose the parent-chain of the item we are looking for
3298         wxVector<wxDataViewItem> parentChain;
3299         wxDataViewItem it( item );
3300         while( it.IsOk() )
3301         {
3302             parentChain.push_back(it);
3303             it = model->GetParent(it);
3304         }
3305
3306         // add an 'invalid' item to represent our 'invisible' root node
3307         parentChain.push_back(wxDataViewItem());
3308
3309         // the parent chain was created by adding the deepest parent first.
3310         // so if we want to start at the root node, we have to iterate backwards through the vector
3311         ItemToRowJob job( item, parentChain.rbegin() );
3312         Walker( m_root, job );
3313         return job.GetResult();
3314     }
3315 }
3316
3317 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3318                              wxDataViewTreeNode * node)
3319 {
3320     if( !model->IsContainer( item ) )
3321         return;
3322
3323     wxDataViewItemArray children;
3324     unsigned int num = model->GetChildren( item, children);
3325
3326     unsigned int index = 0;
3327     while( index < num )
3328     {
3329         if( model->IsContainer( children[index] ) )
3330         {
3331             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3332             n->SetItem(children[index]);
3333             n->SetHasChildren( true );
3334             node->AddNode( n );
3335         }
3336         else
3337         {
3338             node->AddLeaf( children[index].GetID() );
3339         }
3340         index ++;
3341     }
3342     node->SetSubTreeCount( num );
3343     wxDataViewTreeNode * n = node->GetParent();
3344     if( n != NULL)
3345         n->ChangeSubTreeCount(num);
3346
3347 }
3348
3349 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3350 {
3351     DestroyTree();
3352
3353     if (GetOwner()->GetModel()->IsVirtualListModel())
3354     {
3355         m_count = -1;
3356         return;
3357     }
3358
3359     m_root = new wxDataViewTreeNode( NULL );
3360     m_root->SetHasChildren(true);
3361
3362     // First we define a invalid item to fetch the top-level elements
3363     wxDataViewItem item;
3364     SortPrepare();
3365     BuildTreeHelper( model, item, m_root);
3366     m_count = -1;
3367 }
3368
3369 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3370 {
3371     if( node->GetNodeNumber() != 0 )
3372     {
3373         int len = node->GetNodeNumber();
3374         wxDataViewTreeNodes& nodes = node->GetNodes();
3375         for (int i = 0; i < len; i++)
3376             DestroyTreeHelper(nodes[i]);
3377     }
3378     delete node;
3379 }
3380
3381 void wxDataViewMainWindow::DestroyTree()
3382 {
3383     if (!IsVirtualList())
3384     {
3385         ::DestroyTreeHelper(m_root);
3386             m_count = 0;
3387             m_root = NULL;
3388     }
3389 }
3390
3391 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3392 {
3393     wxWindow * const parent = GetParent();
3394
3395     // propagate the char event upwards
3396     wxKeyEvent eventForParent(event);
3397     eventForParent.SetEventObject(parent);
3398     if ( parent->ProcessWindowEvent(eventForParent) )
3399         return;
3400
3401     if ( parent->HandleAsNavigationKey(event) )
3402         return;
3403
3404     // no item -> nothing to do
3405     if (!HasCurrentRow())
3406     {
3407         event.Skip();
3408         return;
3409     }
3410
3411     // don't use m_linesPerPage directly as it might not be computed yet
3412     const int pageSize = GetCountPerPage();
3413     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3414
3415     switch ( event.GetKeyCode() )
3416     {
3417         case WXK_RETURN:
3418             {
3419                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3420                                    parent->GetId());
3421                 le.SetItem( GetItemByRow(m_currentRow) );
3422                 le.SetEventObject(parent);
3423                 le.SetModel(GetOwner()->GetModel());
3424
3425                 parent->GetEventHandler()->ProcessEvent(le);
3426             }
3427             break;
3428
3429         case WXK_UP:
3430             if ( m_currentRow > 0 )
3431                 OnArrowChar( m_currentRow - 1, event );
3432             break;
3433
3434         case WXK_DOWN:
3435             if ( m_currentRow + 1 < GetRowCount() )
3436                 OnArrowChar( m_currentRow + 1, event );
3437             break;
3438         // Add the process for tree expanding/collapsing
3439         case WXK_LEFT:
3440         {
3441             if (IsList())
3442                break;
3443
3444             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3445             if (!node)
3446                 break;
3447
3448             if (node->HasChildren() && node->IsOpen())
3449             {
3450                 Collapse(m_currentRow);
3451             }
3452             else    // if the node is already closed we move the selection to its parent
3453             {
3454                 wxDataViewTreeNode *parent_node = node->GetParent();
3455
3456                 if(!node->HasChildren())
3457                     delete node;
3458
3459                 if (parent_node)
3460                 {
3461                     int parent = GetRowByItem( parent_node->GetItem() );
3462                     if ( parent >= 0 )
3463                     {
3464                         unsigned int row = m_currentRow;
3465                         SelectRow( row, false);
3466                         SelectRow( parent, true );
3467                         ChangeCurrentRow( parent );
3468                         GetOwner()->EnsureVisible( parent, -1 );
3469                         SendSelectionChangedEvent( parent_node->GetItem() );
3470                     }
3471                 }
3472             }
3473             break;
3474         }
3475         case WXK_RIGHT:
3476         {
3477             if (!IsExpanded( m_currentRow ))
3478                 Expand( m_currentRow );
3479             else
3480             {
3481                 unsigned int row = m_currentRow;
3482                 SelectRow( row, false );
3483                 SelectRow( row + 1, true );
3484                 ChangeCurrentRow( row + 1 );
3485                 GetOwner()->EnsureVisible( row + 1, -1 );
3486                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3487             }
3488             break;
3489         }
3490         case WXK_END:
3491         {
3492             if (!IsEmpty())
3493                 OnArrowChar( GetRowCount() - 1, event );
3494             break;
3495         }
3496         case WXK_HOME:
3497             if (!IsEmpty())
3498                 OnArrowChar( 0, event );
3499             break;
3500
3501         case WXK_PAGEUP:
3502             {
3503                 int steps = pageSize - 1;
3504                 int index = m_currentRow - steps;
3505                 if (index < 0)
3506                     index = 0;
3507
3508                 OnArrowChar( index, event );
3509             }
3510             break;
3511
3512         case WXK_PAGEDOWN:
3513             {
3514                 int steps = pageSize - 1;
3515                 unsigned int index = m_currentRow + steps;
3516                 unsigned int count = GetRowCount();
3517                 if ( index >= count )
3518                     index = count - 1;
3519
3520                 OnArrowChar( index, event );
3521             }
3522             break;
3523
3524         case WXK_F2:
3525             {
3526                 if(m_selection.size() == 1)
3527                 {
3528                     // TODO: we need to revise that when we have a concept for a 'current column'
3529                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3530                 }
3531             }
3532             break;
3533
3534         default:
3535             event.Skip();
3536     }
3537 }
3538
3539 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3540 {
3541     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3542     {
3543         // let the base handle mouse wheel events.
3544         event.Skip();
3545         return;
3546     }
3547
3548     // set the focus to ourself if any of the mouse buttons are pressed
3549     if(event.ButtonDown() && !HasFocus())
3550         SetFocus();
3551
3552     int x = event.GetX();
3553     int y = event.GetY();
3554     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3555     wxDataViewColumn *col = NULL;
3556
3557     int xpos = 0;
3558     unsigned int cols = GetOwner()->GetColumnCount();
3559     unsigned int i;
3560     for (i = 0; i < cols; i++)
3561     {
3562         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3563         if (c->IsHidden())
3564             continue;      // skip it!
3565
3566         if (x < xpos + c->GetWidth())
3567         {
3568             col = c;
3569             break;
3570         }
3571         xpos += c->GetWidth();
3572     }
3573     if (!col)
3574     {
3575         event.Skip();
3576         return;
3577     }
3578
3579     wxDataViewRenderer *cell = col->GetRenderer();
3580     unsigned int current = GetLineAt( y );
3581     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3582     {
3583         // Unselect all if below the last row ?
3584         event.Skip();
3585         return;
3586     }
3587
3588     // Test whether the mouse is hovered on the tree item button
3589     bool hoverOverExpander = false;
3590     if ((!IsList()) && (GetOwner()->GetExpanderColumn() == col))
3591     {
3592         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3593         if( node!=NULL && node->HasChildren() )
3594         {
3595             int indent = node->GetIndentLevel();
3596             indent = GetOwner()->GetIndent()*indent;
3597
3598             // we make the rectangle we are looking in a bit bigger than the actual
3599             // visual expander so the user can hit that little thing reliably
3600             wxRect rect( xpos + indent,
3601                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3602                         m_lineHeight, m_lineHeight);
3603             if( rect.Contains(x, y) )
3604             {
3605                 // So the mouse is over the expander
3606                 hoverOverExpander = true;
3607                 if (m_underMouse && m_underMouse != node)
3608                 {
3609                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3610                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3611                 }
3612                 if (m_underMouse != node)
3613                 {
3614                     // wxLogMessage("Do the row: %d", current);
3615                     RefreshRow(current);
3616                 }
3617                 m_underMouse = node;
3618             }
3619         }
3620         if (node!=NULL && !node->HasChildren())
3621             delete node;
3622     }
3623     if (!hoverOverExpander)
3624     {
3625         if (m_underMouse != NULL)
3626         {
3627             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3628             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3629             m_underMouse = NULL;
3630         }
3631     }
3632
3633     wxDataViewModel *model = GetOwner()->GetModel();
3634
3635 #if wxUSE_DRAG_AND_DROP
3636     if (event.Dragging())
3637     {
3638         if (m_dragCount == 0)
3639         {
3640             // we have to report the raw, physical coords as we want to be
3641             // able to call HitTest(event.m_pointDrag) from the user code to
3642             // get the item being dragged
3643             m_dragStart = event.GetPosition();
3644         }
3645
3646         m_dragCount++;
3647
3648         if (m_dragCount != 3)
3649             return;
3650
3651         if (event.LeftIsDown())
3652         {
3653             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3654                                              &m_dragStart.x, &m_dragStart.y );
3655             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3656             wxDataViewItem item = GetItemByRow( drag_item_row );
3657
3658             // Notify cell about drag
3659             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3660             event.SetEventObject( m_owner );
3661             event.SetItem( item );
3662             event.SetModel( model );
3663             if (!m_owner->HandleWindowEvent( event ))
3664                 return;
3665
3666             if (!event.IsAllowed())
3667                 return;
3668
3669             wxDataObject *obj = event.GetDataObject();
3670             if (!obj)
3671                 return;
3672
3673             wxDataViewDropSource drag( this, drag_item_row );
3674             drag.SetData( *obj );
3675             /* wxDragResult res = */ drag.DoDragDrop();
3676             delete obj;
3677         }
3678         return;
3679     }
3680     else
3681     {
3682         m_dragCount = 0;
3683     }
3684 #endif // wxUSE_DRAG_AND_DROP
3685
3686     bool simulateClick = false;
3687
3688     if (event.ButtonDClick())
3689     {
3690         m_renameTimer->Stop();
3691         m_lastOnSame = false;
3692     }
3693
3694     wxDataViewItem item = GetItemByRow(current);
3695     bool ignore_other_columns =
3696         ((GetOwner()->GetExpanderColumn() != col) &&
3697         (model->IsContainer(item)) &&
3698         (!model->HasContainerColumns(item)));
3699
3700     if (event.LeftDClick())
3701     {
3702         if(hoverOverExpander)
3703         {
3704             // a double click on the expander will be converted into a "simulated" normal click
3705             simulateClick = true;
3706         }
3707         else if ( current == m_lineLastClicked )
3708         {
3709             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3710             {
3711                 const unsigned colIdx = col->GetModelColumn();
3712
3713                 cell->PrepareForItem(model, item, colIdx);
3714
3715                 wxRect cell_rect( xpos, GetLineStart( current ),
3716                                 col->GetWidth(), GetLineHeight( current ) );
3717                 cell->WXOnActivate( cell_rect, model, item, colIdx );
3718             }
3719             else
3720             {
3721                 wxWindow *parent = GetParent();
3722                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3723                 le.SetItem( item );
3724                 le.SetColumn( col->GetModelColumn() );
3725                 le.SetDataViewColumn( col );
3726                 le.SetEventObject(parent);
3727                 le.SetModel(GetOwner()->GetModel());
3728
3729                 parent->GetEventHandler()->ProcessEvent(le);
3730             }
3731             return;
3732         }
3733         else
3734         {
3735             // The first click was on another item, so don't interpret this as
3736             // a double click, but as a simple click instead
3737             simulateClick = true;
3738         }
3739     }
3740
3741     if (event.LeftUp() && !hoverOverExpander)
3742     {
3743         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3744         {
3745             // select single line
3746             SelectAllRows( false );
3747             SelectRow( m_lineSelectSingleOnUp, true );
3748             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3749         }
3750
3751         // If the user click the expander, we do not do editing even if the column
3752         // with expander are editable
3753         if (m_lastOnSame && !ignore_other_columns)
3754         {
3755             if ((col == m_currentCol) && (current == m_currentRow) &&
3756                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3757             {
3758                 m_renameTimer->Start( 100, true );
3759             }
3760         }
3761
3762         m_lastOnSame = false;
3763         m_lineSelectSingleOnUp = (unsigned int)-1;
3764     }
3765     else if(!event.LeftUp())
3766     {
3767         // This is necessary, because after a DnD operation in
3768         // from and to ourself, the up event is swallowed by the
3769         // DnD code. So on next non-up event (which means here and
3770         // now) m_lineSelectSingleOnUp should be reset.
3771         m_lineSelectSingleOnUp = (unsigned int)-1;
3772     }
3773
3774     if (event.RightDown())
3775     {
3776         m_lineBeforeLastClicked = m_lineLastClicked;
3777         m_lineLastClicked = current;
3778
3779         // If the item is already selected, do not update the selection.
3780         // Multi-selections should not be cleared if a selected item is clicked.
3781         if (!IsRowSelected(current))
3782         {
3783             SelectAllRows(false);
3784             const unsigned oldCurrent = m_currentRow;
3785             ChangeCurrentRow(current);
3786             SelectRow(m_currentRow,true);
3787             RefreshRow(oldCurrent);
3788             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3789         }
3790     }
3791     else if (event.RightUp())
3792     {
3793         wxVariant value;
3794         model->GetValue( value, item, col->GetModelColumn() );
3795         wxWindow *parent = GetParent();
3796         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3797         le.SetItem( item );
3798         le.SetColumn( col->GetModelColumn() );
3799         le.SetDataViewColumn( col );
3800         le.SetEventObject(parent);
3801         le.SetModel(GetOwner()->GetModel());
3802         le.SetValue(value);
3803         parent->GetEventHandler()->ProcessEvent(le);
3804     }
3805     else if (event.MiddleDown())
3806     {
3807     }
3808
3809     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3810     {
3811         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3812
3813         // hoverOverExpander being true tells us that our node must be
3814         // valid and have children.
3815         // So we don't need any extra checks.
3816         if( node->IsOpen() )
3817             Collapse(current);
3818         else
3819             Expand(current);
3820     }
3821     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3822     {
3823         m_lineBeforeLastClicked = m_lineLastClicked;
3824         m_lineLastClicked = current;
3825
3826         unsigned int oldCurrentRow = m_currentRow;
3827         bool oldWasSelected = IsRowSelected(m_currentRow);
3828
3829         bool cmdModifierDown = event.CmdDown();
3830         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3831         {
3832             if ( IsSingleSel() || !IsRowSelected(current) )
3833             {
3834                 SelectAllRows( false );
3835                 ChangeCurrentRow(current);
3836                 SelectRow(m_currentRow,true);
3837                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3838             }
3839             else // multi sel & current is highlighted & no mod keys
3840             {
3841                 m_lineSelectSingleOnUp = current;
3842                 ChangeCurrentRow(current); // change focus
3843             }
3844         }
3845         else // multi sel & either ctrl or shift is down
3846         {
3847             if (cmdModifierDown)
3848             {
3849                 ChangeCurrentRow(current);
3850                 ReverseRowSelection(m_currentRow);
3851                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3852             }
3853             else if (event.ShiftDown())
3854             {
3855                 ChangeCurrentRow(current);
3856
3857                 unsigned int lineFrom = oldCurrentRow,
3858                     lineTo = current;
3859
3860                 if ( lineTo < lineFrom )
3861                 {
3862                     lineTo = lineFrom;
3863                     lineFrom = m_currentRow;
3864                 }
3865
3866                 SelectRows(lineFrom, lineTo, true);
3867                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3868             }
3869             else // !ctrl, !shift
3870             {
3871                 // test in the enclosing if should make it impossible
3872                 wxFAIL_MSG( wxT("how did we get here?") );
3873             }
3874         }
3875
3876         if (m_currentRow != oldCurrentRow)
3877             RefreshRow( oldCurrentRow );
3878
3879         wxDataViewColumn *oldCurrentCol = m_currentCol;
3880
3881         // Update selection here...
3882         m_currentCol = col;
3883
3884         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3885                         (current == oldCurrentRow)) && oldWasSelected;
3886
3887         // Call LeftClick after everything else as under GTK+
3888         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3889         {
3890             // notify cell about click
3891             cell->PrepareForItem(model, item, col->GetModelColumn());
3892
3893             wxRect cell_rect( xpos, GetLineStart( current ),
3894                               col->GetWidth(), GetLineHeight( current ) );
3895
3896             // Report position relative to the cell's custom area, i.e.
3897             // no the entire space as given by the control but the one
3898             // used by the renderer after calculation of alignment etc.
3899
3900             // adjust the rectangle ourselves to account for the alignment
3901             wxRect rectItem = cell_rect;
3902             const int align = cell->GetAlignment();
3903             if ( align != wxDVR_DEFAULT_ALIGNMENT )
3904             {
3905                 const wxSize size = cell->GetSize();
3906
3907                 if ( size.x >= 0 && size.x < cell_rect.width )
3908                 {
3909                     if ( align & wxALIGN_CENTER_HORIZONTAL )
3910                         rectItem.x += (cell_rect.width - size.x)/2;
3911                     else if ( align & wxALIGN_RIGHT )
3912                         rectItem.x += cell_rect.width - size.x;
3913                     // else: wxALIGN_LEFT is the default
3914                 }
3915
3916                 if ( size.y >= 0 && size.y < cell_rect.height )
3917                 {
3918                     if ( align & wxALIGN_CENTER_VERTICAL )
3919                         rectItem.y += (cell_rect.height - size.y)/2;
3920                     else if ( align & wxALIGN_BOTTOM )
3921                         rectItem.y += cell_rect.height - size.y;
3922                     // else: wxALIGN_TOP is the default
3923                 }
3924             }
3925
3926             wxPoint pos( event.GetPosition() );
3927             pos.x -= rectItem.x;
3928             pos.y -= rectItem.y;
3929
3930             m_owner->CalcUnscrolledPosition( pos.x, pos.y, &pos.x, &pos.y );
3931
3932              /* ignore ret */ cell->WXOnLeftClick( pos, cell_rect,
3933                               model, item, col->GetModelColumn());
3934         }
3935     }
3936 }
3937
3938 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3939 {
3940     m_hasFocus = true;
3941
3942     if (HasCurrentRow())
3943         Refresh();
3944
3945     event.Skip();
3946 }
3947
3948 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3949 {
3950     m_hasFocus = false;
3951
3952     if (HasCurrentRow())
3953         Refresh();
3954
3955     event.Skip();
3956 }
3957
3958 wxDataViewItem wxDataViewMainWindow::GetSelection() const
3959 {
3960     if( m_selection.GetCount() != 1 )
3961         return wxDataViewItem();
3962
3963     return GetItemByRow( m_selection.Item(0));
3964 }
3965
3966 //-----------------------------------------------------------------------------
3967 // wxDataViewCtrl
3968 //-----------------------------------------------------------------------------
3969
3970 WX_DEFINE_LIST(wxDataViewColumnList)
3971
3972 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3973 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3974     EVT_SIZE(wxDataViewCtrl::OnSize)
3975 END_EVENT_TABLE()
3976
3977 wxDataViewCtrl::~wxDataViewCtrl()
3978 {
3979     if (m_notifier)
3980         GetModel()->RemoveNotifier( m_notifier );
3981
3982     m_cols.Clear();
3983     m_colsBestWidths.clear();
3984 }
3985
3986 void wxDataViewCtrl::Init()
3987 {
3988     m_cols.DeleteContents(true);
3989     m_notifier = NULL;
3990
3991     // No sorting column at start
3992     m_sortingColumnIdx = wxNOT_FOUND;
3993
3994     m_headerArea = NULL;
3995 }
3996
3997 bool wxDataViewCtrl::Create(wxWindow *parent,
3998                             wxWindowID id,
3999                             const wxPoint& pos,
4000                             const wxSize& size,
4001                             long style,
4002                             const wxValidator& validator,
4003                             const wxString& name)
4004 {
4005 //    if ( (style & wxBORDER_MASK) == 0)
4006 //        style |= wxBORDER_SUNKEN;
4007
4008     Init();
4009
4010     if (!wxControl::Create( parent, id, pos, size,
4011                             style | wxScrolledWindowStyle, validator, name))
4012         return false;
4013
4014     SetInitialSize(size);
4015
4016 #ifdef __WXMAC__
4017     MacSetClipChildren( true );
4018 #endif
4019
4020     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4021
4022     // We use the cursor keys for moving the selection, not scrolling, so call
4023     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4024     // keyboard events forwarded to us from wxListMainWindow.
4025     DisableKeyboardScrolling();
4026
4027     if (HasFlag(wxDV_NO_HEADER))
4028         m_headerArea = NULL;
4029     else
4030         m_headerArea = new wxDataViewHeaderWindow(this);
4031
4032     SetTargetWindow( m_clientArea );
4033
4034     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4035     if (m_headerArea)
4036         sizer->Add( m_headerArea, 0, wxGROW );
4037     sizer->Add( m_clientArea, 1, wxGROW );
4038     SetSizer( sizer );
4039
4040     return true;
4041 }
4042
4043 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4044 {
4045     return wxBORDER_THEME;
4046 }
4047
4048 #ifdef __WXMSW__
4049 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4050                                         WXWPARAM wParam,
4051                                         WXLPARAM lParam)
4052 {
4053     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4054
4055 #ifndef __WXWINCE__
4056     // we need to process arrows ourselves for scrolling
4057     if ( nMsg == WM_GETDLGCODE )
4058     {
4059         rc |= DLGC_WANTARROWS;
4060     }
4061 #endif
4062
4063     return rc;
4064 }
4065 #endif
4066
4067 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4068 {
4069     wxSize newsize = size;
4070     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4071     newsize.y -= m_headerArea->GetSize().y;
4072
4073     return newsize;
4074 }
4075
4076 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4077 {
4078     // We need to override OnSize so that our scrolled
4079     // window a) does call Layout() to use sizers for
4080     // positioning the controls but b) does not query
4081     // the sizer for their size and use that for setting
4082     // the scrollable area as set that ourselves by
4083     // calling SetScrollbar() further down.
4084
4085     Layout();
4086
4087     AdjustScrollbars();
4088
4089     // We must redraw the headers if their height changed. Normally this
4090     // shouldn't happen as the control shouldn't let itself be resized beneath
4091     // its minimal height but avoid the display artefacts that appear if it
4092     // does happen, e.g. because there is really not enough vertical space.
4093     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4094             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4095     {
4096         m_headerArea->Refresh();
4097     }
4098 }
4099
4100 void wxDataViewCtrl::SetFocus()
4101 {
4102     if (m_clientArea)
4103         m_clientArea->SetFocus();
4104 }
4105
4106 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4107 {
4108     if (!wxDataViewCtrlBase::AssociateModel( model ))
4109         return false;
4110
4111     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4112
4113     model->AddNotifier( m_notifier );
4114
4115     m_clientArea->DestroyTree();
4116
4117     m_clientArea->BuildTree(model);
4118
4119     m_clientArea->UpdateDisplay();
4120
4121     return true;
4122 }
4123
4124 #if wxUSE_DRAG_AND_DROP
4125
4126 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4127 {
4128     return m_clientArea->EnableDragSource( format );
4129 }
4130
4131 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4132 {
4133     return m_clientArea->EnableDropTarget( format );
4134 }
4135
4136 #endif // wxUSE_DRAG_AND_DROP
4137
4138 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4139 {
4140     if (!wxDataViewCtrlBase::AppendColumn(col))
4141         return false;
4142
4143     m_cols.Append( col );
4144     m_colsBestWidths.push_back(0);
4145     OnColumnsCountChanged();
4146     return true;
4147 }
4148
4149 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4150 {
4151     if (!wxDataViewCtrlBase::PrependColumn(col))
4152         return false;
4153
4154     m_cols.Insert( col );
4155     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4156     OnColumnsCountChanged();
4157     return true;
4158 }
4159
4160 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4161 {
4162     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4163         return false;
4164
4165     m_cols.Insert( pos, col );
4166     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4167     OnColumnsCountChanged();
4168     return true;
4169 }
4170
4171 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4172 {
4173     if ( m_headerArea )
4174         m_headerArea->UpdateColumn(idx);
4175
4176     m_clientArea->UpdateDisplay();
4177 }
4178
4179 void wxDataViewCtrl::OnColumnsCountChanged()
4180 {
4181     if (m_headerArea)
4182         m_headerArea->SetColumnCount(GetColumnCount());
4183
4184     m_clientArea->UpdateDisplay();
4185 }
4186
4187 void wxDataViewCtrl::DoSetExpanderColumn()
4188 {
4189     m_clientArea->UpdateDisplay();
4190 }
4191
4192 void wxDataViewCtrl::DoSetIndent()
4193 {
4194     m_clientArea->UpdateDisplay();
4195 }
4196
4197 unsigned int wxDataViewCtrl::GetColumnCount() const
4198 {
4199     return m_cols.GetCount();
4200 }
4201
4202 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4203 {
4204     if ( !m_clientArea )
4205         return false;
4206
4207     m_clientArea->SetRowHeight(lineHeight);
4208
4209     return true;
4210 }
4211
4212 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4213 {
4214     return m_cols[idx];
4215 }
4216
4217 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4218 {
4219     // columns can't be reordered if there is no header window which allows
4220     // to do this
4221     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4222                                     : pos;
4223
4224     return GetColumn(idx);
4225 }
4226
4227 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4228 {
4229     const unsigned count = m_cols.size();
4230     for ( unsigned n = 0; n < count; n++ )
4231     {
4232         if ( m_cols[n] == column )
4233             return n;
4234     }
4235
4236     return wxNOT_FOUND;
4237 }
4238
4239 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4240 {
4241     if ( m_colsBestWidths[idx] != 0 )
4242         return m_colsBestWidths[idx];
4243
4244     const int count = m_clientArea->GetRowCount();
4245     wxDataViewColumn *column = GetColumn(idx);
4246     wxDataViewRenderer *renderer =
4247         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4248
4249     class MaxWidthCalculator
4250     {
4251     public:
4252         MaxWidthCalculator(wxDataViewMainWindow *clientArea,
4253                            wxDataViewRenderer *renderer,
4254                            const wxDataViewModel *model,
4255                            unsigned column)
4256             : m_width(0),
4257               m_clientArea(clientArea),
4258               m_renderer(renderer),
4259               m_model(model),
4260               m_column(column)
4261         {
4262         }
4263
4264         void UpdateWithWidth(int width)
4265         {
4266             m_width = wxMax(m_width, width);
4267         }
4268
4269         void UpdateWithRow(int row)
4270         {
4271             wxDataViewItem item = m_clientArea->GetItemByRow(row);
4272             m_renderer->PrepareForItem(m_model, item, m_column);
4273             m_width = wxMax(m_width, m_renderer->GetSize().x);
4274         }
4275
4276         int GetMaxWidth() const { return m_width; }
4277
4278     private:
4279         int m_width;
4280         wxDataViewMainWindow *m_clientArea;
4281         wxDataViewRenderer *m_renderer;
4282         const wxDataViewModel *m_model;
4283         unsigned m_column;
4284     };
4285
4286     MaxWidthCalculator calculator(m_clientArea, renderer,
4287                                   GetModel(), column->GetModelColumn());
4288
4289     if ( m_headerArea )
4290     {
4291         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4292         // Labels on native MSW header are indented on both sides
4293         header_width +=
4294             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4295         calculator.UpdateWithWidth(header_width);
4296     }
4297
4298     // The code below deserves some explanation. For very large controls, we
4299     // simply can't afford to calculate sizes for all items, it takes too
4300     // long. So the best we can do is to check the first and the last N/2
4301     // items in the control for some sufficiently large N and calculate best
4302     // sizes from that. That can result in the calculated best width being too
4303     // small for some outliers, but it's better to get slightly imperfect
4304     // result than to wait several seconds after every update. To avoid highly
4305     // visible miscalculations, we also include all currently visible items
4306     // no matter what.  Finally, the value of N is determined dynamically by
4307     // measuring how much time we spent on the determining item widths so far.
4308
4309 #if wxUSE_STOPWATCH
4310     int top_part_end = count;
4311     static const long CALC_TIMEOUT = 20/*ms*/;
4312     // don't call wxStopWatch::Time() too often
4313     static const unsigned CALC_CHECK_FREQ = 100;
4314     wxStopWatch timer;
4315 #else
4316     // use some hard-coded limit, that's the best we can do without timer
4317     int top_part_end = wxMin(500, count);
4318 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4319
4320     int row = 0;
4321
4322     for ( row = 0; row < top_part_end; row++ )
4323     {
4324 #if wxUSE_STOPWATCH
4325         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4326              timer.Time() > CALC_TIMEOUT )
4327             break;
4328 #endif // wxUSE_STOPWATCH
4329         calculator.UpdateWithRow(row);
4330     }
4331
4332     // row is the first unmeasured item now; that's our value of N/2
4333
4334     if ( row < count )
4335     {
4336         top_part_end = row;
4337
4338         // add bottom N/2 items now:
4339         const int bottom_part_start = wxMax(row, count - row);
4340         for ( row = bottom_part_start; row < count; row++ )
4341         {
4342             calculator.UpdateWithRow(row);
4343         }
4344
4345         // finally, include currently visible items in the calculation:
4346         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4347         int first_visible = m_clientArea->GetLineAt(origin.y);
4348         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4349
4350         first_visible = wxMax(first_visible, top_part_end);
4351         last_visible = wxMin(bottom_part_start, last_visible);
4352
4353         for ( row = first_visible; row < last_visible; row++ )
4354         {
4355             calculator.UpdateWithRow(row);
4356         }
4357
4358         wxLogTrace("dataview",
4359                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4360                    top_part_end,
4361                    count - bottom_part_start,
4362                    wxMax(0, last_visible - first_visible),
4363                    count);
4364     }
4365
4366     int max_width = calculator.GetMaxWidth();
4367     if ( max_width > 0 )
4368         max_width += 2 * PADDING_RIGHTLEFT;
4369
4370     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4371     return max_width;
4372 }
4373
4374 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4375                                 unsigned int WXUNUSED(new_pos))
4376 {
4377     // do _not_ reorder m_cols elements here, they should always be in the
4378     // order in which columns were added, we only display the columns in
4379     // different order
4380     m_clientArea->UpdateDisplay();
4381 }
4382
4383 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4384 {
4385     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4386     if (!ret)
4387         return false;
4388
4389     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4390     m_cols.Erase(ret);
4391     OnColumnsCountChanged();
4392
4393     return true;
4394 }
4395
4396 bool wxDataViewCtrl::ClearColumns()
4397 {
4398     m_cols.Clear();
4399     m_colsBestWidths.clear();
4400     OnColumnsCountChanged();
4401     return true;
4402 }
4403
4404 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4405 {
4406     m_colsBestWidths[idx] = 0;
4407
4408     if ( m_headerArea )
4409         m_headerArea->UpdateColumn(idx);
4410 }
4411
4412 void wxDataViewCtrl::InvalidateColBestWidths()
4413 {
4414     m_colsBestWidths.clear();
4415     m_colsBestWidths.resize(m_cols.size());
4416
4417     if ( m_headerArea )
4418     {
4419         const unsigned cols = m_headerArea->GetColumnCount();
4420         for ( unsigned i = 0; i < cols; i++ )
4421             m_headerArea->UpdateColumn(i);
4422     }
4423 }
4424
4425 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4426 {
4427 #if 1
4428     unsigned int len = GetColumnCount();
4429     for ( unsigned int i = 0; i < len; i++ )
4430     {
4431         wxDataViewColumn * col = GetColumnAt(i);
4432         if (column==col)
4433             return i;
4434     }
4435
4436     return wxNOT_FOUND;
4437 #else
4438     // This returns the position in pixels which is not what we want.
4439     int ret = 0,
4440         dummy = 0;
4441     unsigned int len = GetColumnCount();
4442     for ( unsigned int i = 0; i < len; i++ )
4443     {
4444         wxDataViewColumn * col = GetColumnAt(i);
4445         if (col->IsHidden())
4446             continue;
4447         ret += col->GetWidth();
4448         if (column==col)
4449         {
4450             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4451             break;
4452         }
4453     }
4454     return ret;
4455 #endif
4456 }
4457
4458 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4459 {
4460     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4461                                             : GetColumn(m_sortingColumnIdx);
4462 }
4463
4464 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4465 {
4466     return GetItemByRow(m_clientArea->GetCurrentRow());
4467 }
4468
4469 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4470 {
4471     const int row = m_clientArea->GetRowByItem(item);
4472
4473     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4474     if ( static_cast<unsigned>(row) != oldCurrent )
4475     {
4476         m_clientArea->ChangeCurrentRow(row);
4477         m_clientArea->RefreshRow(oldCurrent);
4478         m_clientArea->RefreshRow(row);
4479     }
4480 }
4481
4482 // Selection code with wxDataViewItem as parameters
4483 wxDataViewItem wxDataViewCtrl::GetSelection() const
4484 {
4485     return m_clientArea->GetSelection();
4486 }
4487
4488 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4489 {
4490     sel.Empty();
4491     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4492
4493     const size_t len = selections.size();
4494     for ( size_t i = 0; i < len; i++ )
4495     {
4496         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4497         if ( item.IsOk() )
4498         {
4499             sel.Add(item);
4500         }
4501         else
4502         {
4503             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4504         }
4505     }
4506
4507     return sel.size();
4508 }
4509
4510 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4511 {
4512     wxDataViewSelection selection(wxDataViewSelectionCmp);
4513
4514     wxDataViewItem last_parent;
4515
4516     int len = sel.GetCount();
4517     for( int i = 0; i < len; i ++ )
4518     {
4519         wxDataViewItem item = sel[i];
4520         wxDataViewItem parent = GetModel()->GetParent( item );
4521         if (parent)
4522         {
4523             if (parent != last_parent)
4524                 ExpandAncestors(item);
4525         }
4526
4527         last_parent = parent;
4528         int row = m_clientArea->GetRowByItem( item );
4529         if( row >= 0 )
4530             selection.Add( static_cast<unsigned int>(row) );
4531     }
4532
4533     m_clientArea->SetSelections( selection );
4534 }
4535
4536 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4537 {
4538     ExpandAncestors( item );
4539
4540     int row = m_clientArea->GetRowByItem( item );
4541     if( row >= 0 )
4542     {
4543         // Unselect all rows before select another in the single select mode
4544         if (m_clientArea->IsSingleSel())
4545             m_clientArea->SelectAllRows(false);
4546
4547         m_clientArea->SelectRow(row, true);
4548
4549         // Also set focus to the selected item
4550         m_clientArea->ChangeCurrentRow( row );
4551     }
4552 }
4553
4554 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4555 {
4556     int row = m_clientArea->GetRowByItem( item );
4557     if( row >= 0 )
4558         m_clientArea->SelectRow(row, false);
4559 }
4560
4561 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4562 {
4563     int row = m_clientArea->GetRowByItem( item );
4564     if( row >= 0 )
4565     {
4566         return m_clientArea->IsRowSelected(row);
4567     }
4568     return false;
4569 }
4570
4571 void wxDataViewCtrl::SelectAll()
4572 {
4573     m_clientArea->SelectAllRows(true);
4574 }
4575
4576 void wxDataViewCtrl::UnselectAll()
4577 {
4578     m_clientArea->SelectAllRows(false);
4579 }
4580
4581 void wxDataViewCtrl::EnsureVisible( int row, int column )
4582 {
4583     if( row < 0 )
4584         row = 0;
4585     if( row > (int) m_clientArea->GetRowCount() )
4586         row = m_clientArea->GetRowCount();
4587
4588     int first = m_clientArea->GetFirstVisibleRow();
4589     int last = m_clientArea->GetLastVisibleRow();
4590     if( row < first )
4591         m_clientArea->ScrollTo( row, column );
4592     else if( row > last )
4593         m_clientArea->ScrollTo( row - last + first, column );
4594     else
4595         m_clientArea->ScrollTo( first, column );
4596 }
4597
4598 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4599 {
4600     ExpandAncestors( item );
4601
4602     m_clientArea->RecalculateDisplay();
4603
4604     int row = m_clientArea->GetRowByItem(item);
4605     if( row >= 0 )
4606     {
4607         if( column == NULL )
4608             EnsureVisible(row, -1);
4609         else
4610             EnsureVisible( row, GetColumnIndex(column) );
4611     }
4612
4613 }
4614
4615 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4616                               wxDataViewColumn* &column ) const
4617 {
4618     m_clientArea->HitTest(point, item, column);
4619 }
4620
4621 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4622                                     const wxDataViewColumn* column ) const
4623 {
4624     return m_clientArea->GetItemRect(item, column);
4625 }
4626
4627 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4628 {
4629     return m_clientArea->GetItemByRow( row );
4630 }
4631
4632 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4633 {
4634     return m_clientArea->GetRowByItem( item );
4635 }
4636
4637 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4638 {
4639     ExpandAncestors( item );
4640
4641     int row = m_clientArea->GetRowByItem( item );
4642     if (row != -1)
4643         m_clientArea->Expand(row);
4644 }
4645
4646 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4647 {
4648     int row = m_clientArea->GetRowByItem( item );
4649     if (row != -1)
4650         m_clientArea->Collapse(row);
4651 }
4652
4653 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4654 {
4655     int row = m_clientArea->GetRowByItem( item );
4656     if (row != -1)
4657         return m_clientArea->IsExpanded(row);
4658     return false;
4659 }
4660
4661 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4662 {
4663     wxDataViewColumn* col = GetColumn( column );
4664     if (!col)
4665         return;
4666
4667     wxRect itemRect = GetItemRect(item, col);
4668     wxDataViewRenderer* renderer = col->GetRenderer();
4669     if (renderer->GetMode() == wxDATAVIEW_CELL_EDITABLE)
4670         renderer->StartEditing(item, itemRect);
4671 }
4672
4673 #endif // !wxUSE_GENERICDATAVIEWCTRL
4674
4675 #endif // wxUSE_DATAVIEWCTRL