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     const wxDataViewSelection& GetSelections() const { return m_selection; }
 522     void SetSelections( const wxDataViewSelection & sel )
 523         { m_selection = sel; UpdateDisplay(); }
 524     void Select( const wxArrayInt& aSelections );
 525     void SelectAllRows( bool on );
 526     void SelectRow( unsigned int row, bool on );
 527     void SelectRows( unsigned int from, unsigned int to, bool on );
 528     void ReverseRowSelection( unsigned int row );
 529     bool IsRowSelected( unsigned int row );
 530     void SendSelectionChangedEvent( const wxDataViewItem& item);
 531
 532     void RefreshRow( unsigned int row );
 533     void RefreshRows( unsigned int from, unsigned int to );
 534     void RefreshRowsAfter( unsigned int firstRow );
 535
 536     // returns the colour to be used for drawing the rules
 537     wxColour GetRuleColour() const
 538     {
 539         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 540     }
 541
 542     wxRect GetLineRect( unsigned int row ) const;
 543
 544     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 545     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 546     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 547
 548     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 549
 550     // Some useful functions for row and item mapping
 551     wxDataViewItem GetItemByRow( unsigned int row ) const;
 552     int GetRowByItem( const wxDataViewItem & item ) const;
 553
 554     // Methods for building the mapping tree
 555     void BuildTree( wxDataViewModel  * model );
 556     void DestroyTree();
 557     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 558     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 559
 560     void Expand( unsigned int row );
 561     void Collapse( unsigned int row );
 562     bool IsExpanded( unsigned int row ) const;
 563     bool HasChildren( unsigned int row ) const;
 564
 565 #if wxUSE_DRAG_AND_DROP
 566     bool EnableDragSource( const wxDataFormat &format );
 567     bool EnableDropTarget( const wxDataFormat &format );
 568
 569     void RemoveDropHint();
 570     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 571     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 572     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 573     void OnLeave();
 574 #endif // wxUSE_DRAG_AND_DROP
 575
 576 private:
 577     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 578     // We did not need this temporarily
 579     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 580
 581     int RecalculateCount();
 582
 583     // Return false only if the event was vetoed by its handler.
 584     bool 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
1973     if (IsVirtualList())
1974     {
1975         wxDataViewVirtualListModel *list_model =
1976             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1977         m_count = list_model->GetCount();
1978     }
1979     else
1980     {
1981         SortPrepare();
1982
1983         wxDataViewTreeNode * node;
1984         node = FindNode(parent);
1985
1986         if( node == NULL )
1987             return false;
1988
1989         node->SetHasChildren( true );
1990
1991         if( g_model->IsContainer( item ) )
1992         {
1993             wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
1994             newnode->SetItem(item);
1995             newnode->SetHasChildren( true );
1996             node->AddNode( newnode);
1997         }
1998         else
1999             node->AddLeaf( item.GetID() );
2000
2001         node->ChangeSubTreeCount(1);
2002
2003         m_count = -1;
2004     }
2005
2006     GetOwner()->UpdateColBestWidths();
2007     UpdateDisplay();
2008
2009     return true;
2010 }
2011
2012 static void DestroyTreeHelper( wxDataViewTreeNode * node);
2013
2014 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2015                                        const wxDataViewItem& item)
2016 {
2017     if (IsVirtualList())
2018     {
2019         wxDataViewVirtualListModel *list_model =
2020             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
2021         m_count = list_model->GetCount();
2022
2023         if ( !m_selection.empty() )
2024         {
2025             const int row = GetRowByItem(item);
2026
2027             int rowIndexInSelection = wxNOT_FOUND;
2028
2029             const size_t selCount = m_selection.size();
2030             for ( size_t i = 0; i < selCount; i++ )
2031             {
2032                 if ( m_selection[i] == (unsigned)row )
2033                     rowIndexInSelection = i;
2034                 else if ( m_selection[i] > (unsigned)row )
2035                     m_selection[i]--;
2036             }
2037
2038             if ( rowIndexInSelection != wxNOT_FOUND )
2039                 m_selection.RemoveAt(rowIndexInSelection);
2040         }
2041
2042     }
2043     else // general case
2044     {
2045         wxDataViewTreeNode * node = FindNode(parent);
2046
2047         // Notice that it is possible that the item being deleted is not in the
2048         // tree at all, for example we could be deleting a never shown (because
2049         // collapsed) item in a tree model. So it's not an error if we don't know
2050         // about this item, just return without doing anything then.
2051         if ( !node )
2052             return false;
2053
2054         int itemPosInNode = node->GetChildren().Index(item.GetID());
2055         if ( itemPosInNode == wxNOT_FOUND )
2056             return false;
2057
2058         bool isContainer = false;
2059         wxDataViewTreeNode *itemNode = NULL;
2060
2061         const wxDataViewTreeNodes nds = node->GetNodes();
2062         for (size_t i = 0; i < nds.GetCount(); i ++)
2063         {
2064             if (nds[i]->GetItem() == item)
2065             {
2066                 isContainer = true;
2067                 itemNode = nds[i];
2068                 break;
2069             }
2070         }
2071
2072         // Delete the item from wxDataViewTreeNode representation:
2073         int itemsDeleted = 1;
2074         node->GetChildren().Remove( item.GetID() );
2075
2076         if( isContainer )
2077         {
2078             wxDataViewTreeNode *n = node->FindItemAsNode(item);
2079
2080             wxCHECK_MSG( n != NULL, false, "item not found" );
2081
2082             node->GetNodes().Remove( n );
2083             itemsDeleted += n->GetSubTreeCount();
2084             ::DestroyTreeHelper(n);
2085         }
2086
2087         // Make the row number invalid and get a new valid one when user call GetRowCount
2088         m_count = -1;
2089         node->ChangeSubTreeCount(-itemsDeleted);
2090
2091         // Update selection by removing 'item' and its entire children tree from the selection.
2092         if ( !m_selection.empty() )
2093         {
2094             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2095             // the parent ('node') and position in its list of children
2096             int itemRow;
2097             if ( itemPosInNode == 0 )
2098             {
2099                 // 1st child, row number is that of the parent node + 1
2100                 itemRow = GetRowByItem(node->GetItem()) + 1;
2101             }
2102             else
2103             {
2104                 // row number is that of the sibling above 'item' + its subtree if any + 1
2105                 const wxDataViewItem sibling = wxDataViewItem(node->GetChildren()[itemPosInNode - 1]);
2106                 const wxDataViewTreeNode *siblingNode = node->FindItemAsNode(sibling);
2107
2108                 itemRow = GetRowByItem(sibling);
2109                 if ( siblingNode )
2110                     itemRow += siblingNode->GetSubTreeCount();
2111                 itemRow += 1;
2112             }
2113
2114             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2115
2116             const size_t numSelections = m_selection.size();
2117             for ( size_t i = 0; i < numSelections; ++i )
2118             {
2119                 const int s = m_selection[i];
2120                 if ( s < itemRow )
2121                     newsel.push_back(s);
2122                 else if ( s >= itemRow + itemsDeleted )
2123                     newsel.push_back(s - itemsDeleted);
2124                 // else: deleted item, remove from selection
2125             }
2126
2127             m_selection = newsel;
2128         }
2129     }
2130
2131     // Change the current row to the last row if the current exceed the max row number
2132     if( m_currentRow > GetRowCount() )
2133         ChangeCurrentRow(m_count - 1);
2134
2135     GetOwner()->UpdateColBestWidths();
2136     UpdateDisplay();
2137
2138     return true;
2139 }
2140
2141 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2142 {
2143     SortPrepare();
2144     g_model->Resort();
2145
2146     GetOwner()->UpdateColBestWidths();
2147
2148     // Send event
2149     wxWindow *parent = GetParent();
2150     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2151     le.SetEventObject(parent);
2152     le.SetModel(GetOwner()->GetModel());
2153     le.SetItem(item);
2154     parent->GetEventHandler()->ProcessEvent(le);
2155
2156     return true;
2157 }
2158
2159 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2160 {
2161     int view_column = -1;
2162     unsigned int n_col = m_owner->GetColumnCount();
2163     for (unsigned i = 0; i < n_col; i++)
2164     {
2165         wxDataViewColumn *column = m_owner->GetColumn( i );
2166         if (column->GetModelColumn() == model_column)
2167         {
2168             view_column = (int) i;
2169             break;
2170         }
2171     }
2172     if (view_column == -1)
2173         return false;
2174
2175     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2176 /*#define MAX_VIRTUAL_WIDTH       100000
2177
2178     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2179     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2180     Refresh( true, &rect );
2181
2182     return true;
2183 */
2184     SortPrepare();
2185     g_model->Resort();
2186
2187     GetOwner()->UpdateColBestWidth(view_column);
2188
2189     // Send event
2190     wxWindow *parent = GetParent();
2191     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2192     le.SetEventObject(parent);
2193     le.SetModel(GetOwner()->GetModel());
2194     le.SetItem(item);
2195     le.SetColumn(view_column);
2196     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2197     parent->GetEventHandler()->ProcessEvent(le);
2198
2199     return true;
2200 }
2201
2202 bool wxDataViewMainWindow::Cleared()
2203 {
2204     DestroyTree();
2205     m_selection.Clear();
2206
2207     SortPrepare();
2208     BuildTree( GetOwner()->GetModel() );
2209
2210     GetOwner()->UpdateColBestWidths();
2211     UpdateDisplay();
2212
2213     return true;
2214 }
2215
2216 void wxDataViewMainWindow::UpdateDisplay()
2217 {
2218     m_dirty = true;
2219     m_underMouse = NULL;
2220 }
2221
2222 void wxDataViewMainWindow::OnInternalIdle()
2223 {
2224     wxWindow::OnInternalIdle();
2225
2226     if (m_dirty)
2227     {
2228         RecalculateDisplay();
2229         m_dirty = false;
2230     }
2231 }
2232
2233 void wxDataViewMainWindow::RecalculateDisplay()
2234 {
2235     wxDataViewModel *model = GetOwner()->GetModel();
2236     if (!model)
2237     {
2238         Refresh();
2239         return;
2240     }
2241
2242     int width = GetEndOfLastCol();
2243     int height = GetLineStart( GetRowCount() );
2244
2245     SetVirtualSize( width, height );
2246     GetOwner()->SetScrollRate( 10, m_lineHeight );
2247
2248     Refresh();
2249 }
2250
2251 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2252 {
2253     m_underMouse = NULL;
2254
2255     wxWindow::ScrollWindow( dx, dy, rect );
2256
2257     if (GetOwner()->m_headerArea)
2258         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2259 }
2260
2261 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2262 {
2263     m_underMouse = NULL;
2264
2265     int x, y;
2266     m_owner->GetScrollPixelsPerUnit( &x, &y );
2267     int sy = GetLineStart( rows )/y;
2268     int sx = 0;
2269     if( column != -1 )
2270     {
2271         wxRect rect = GetClientRect();
2272         int colnum = 0;
2273         int x_start, w = 0;
2274         int xx, yy, xe;
2275         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2276         for (x_start = 0; colnum < column; colnum++)
2277         {
2278             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2279             if (col->IsHidden())
2280                 continue;      // skip it!
2281
2282             w = col->GetWidth();
2283             x_start += w;
2284         }
2285
2286         int x_end = x_start + w;
2287         xe = xx + rect.width;
2288         if( x_end > xe )
2289         {
2290             sx = ( xx + x_end - xe )/x;
2291         }
2292         if( x_start < xx )
2293         {
2294             sx = x_start/x;
2295         }
2296     }
2297     m_owner->Scroll( sx, sy );
2298 }
2299
2300 int wxDataViewMainWindow::GetCountPerPage() const
2301 {
2302     wxSize size = GetClientSize();
2303     return size.y / m_lineHeight;
2304 }
2305
2306 int wxDataViewMainWindow::GetEndOfLastCol() const
2307 {
2308     int width = 0;
2309     unsigned int i;
2310     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2311     {
2312         const wxDataViewColumn *c =
2313             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2314
2315         if (!c->IsHidden())
2316             width += c->GetWidth();
2317     }
2318     return width;
2319 }
2320
2321 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2322 {
2323     int x = 0;
2324     int y = 0;
2325     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2326
2327     return GetLineAt( y );
2328 }
2329
2330 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2331 {
2332     wxSize client_size = GetClientSize();
2333     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2334                                     &client_size.x, &client_size.y );
2335
2336     // we should deal with the pixel here
2337     unsigned int row = GetLineAt(client_size.y) - 1;
2338
2339     return wxMin( GetRowCount()-1, row );
2340 }
2341
2342 unsigned int wxDataViewMainWindow::GetRowCount()
2343 {
2344     if ( m_count == -1 )
2345     {
2346         m_count = RecalculateCount();
2347         UpdateDisplay();
2348     }
2349     return m_count;
2350 }
2351
2352 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2353 {
2354     m_currentRow = row;
2355
2356     // send event
2357 }
2358
2359 void wxDataViewMainWindow::SelectAllRows( bool on )
2360 {
2361     if (IsEmpty())
2362         return;
2363
2364     if (on)
2365     {
2366         m_selection.Clear();
2367         for (unsigned int i = 0; i < GetRowCount(); i++)
2368             m_selection.Add( i );
2369         Refresh();
2370     }
2371     else
2372     {
2373         unsigned int first_visible = GetFirstVisibleRow();
2374         unsigned int last_visible = GetLastVisibleRow();
2375         unsigned int i;
2376         for (i = 0; i < m_selection.GetCount(); i++)
2377         {
2378             unsigned int row = m_selection[i];
2379             if ((row >= first_visible) && (row <= last_visible))
2380                 RefreshRow( row );
2381         }
2382         m_selection.Clear();
2383     }
2384 }
2385
2386 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2387 {
2388     if (m_selection.Index( row ) == wxNOT_FOUND)
2389     {
2390         if (on)
2391         {
2392             m_selection.Add( row );
2393             RefreshRow( row );
2394         }
2395     }
2396     else
2397     {
2398         if (!on)
2399         {
2400             m_selection.Remove( row );
2401             RefreshRow( row );
2402         }
2403     }
2404 }
2405
2406 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2407 {
2408     if (from > to)
2409     {
2410         unsigned int tmp = from;
2411         from = to;
2412         to = tmp;
2413     }
2414
2415     unsigned int i;
2416     for (i = from; i <= to; i++)
2417     {
2418         if (m_selection.Index( i ) == wxNOT_FOUND)
2419         {
2420             if (on)
2421                 m_selection.Add( i );
2422         }
2423         else
2424         {
2425             if (!on)
2426                 m_selection.Remove( i );
2427         }
2428     }
2429     RefreshRows( from, to );
2430 }
2431
2432 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2433 {
2434     for (size_t i=0; i < aSelections.GetCount(); i++)
2435     {
2436         int n = aSelections[i];
2437
2438         m_selection.Add( n );
2439         RefreshRow( n );
2440     }
2441 }
2442
2443 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2444 {
2445     if (m_selection.Index( row ) == wxNOT_FOUND)
2446         m_selection.Add( row );
2447     else
2448         m_selection.Remove( row );
2449     RefreshRow( row );
2450 }
2451
2452 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2453 {
2454     return (m_selection.Index( row ) != wxNOT_FOUND);
2455 }
2456
2457 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2458 {
2459     wxWindow *parent = GetParent();
2460     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2461
2462     le.SetEventObject(parent);
2463     le.SetModel(GetOwner()->GetModel());
2464     le.SetItem( item );
2465
2466     parent->GetEventHandler()->ProcessEvent(le);
2467 }
2468
2469 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2470 {
2471     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2472     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2473
2474     wxSize client_size = GetClientSize();
2475     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2476     wxRect intersect_rect = client_rect.Intersect( rect );
2477     if (intersect_rect.width > 0)
2478         Refresh( true, &intersect_rect );
2479 }
2480
2481 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2482 {
2483     if (from > to)
2484     {
2485         unsigned int tmp = to;
2486         to = from;
2487         from = tmp;
2488     }
2489
2490     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2491     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2492
2493     wxSize client_size = GetClientSize();
2494     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2495     wxRect intersect_rect = client_rect.Intersect( rect );
2496     if (intersect_rect.width > 0)
2497         Refresh( true, &intersect_rect );
2498 }
2499
2500 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2501 {
2502     wxSize client_size = GetClientSize();
2503     int start = GetLineStart( firstRow );
2504     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2505     if (start > client_size.y) return;
2506
2507     wxRect rect( 0, start, client_size.x, client_size.y - start );
2508
2509     Refresh( true, &rect );
2510 }
2511
2512 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2513 {
2514     wxCHECK_RET( newCurrent < GetRowCount(),
2515                 wxT("invalid item index in OnArrowChar()") );
2516
2517     // if there is no selection, we cannot move it anywhere
2518     if (!HasCurrentRow())
2519         return;
2520
2521     unsigned int oldCurrent = m_currentRow;
2522
2523     // in single selection we just ignore Shift as we can't select several
2524     // items anyhow
2525     if ( event.ShiftDown() && !IsSingleSel() )
2526     {
2527         RefreshRow( oldCurrent );
2528
2529         ChangeCurrentRow( newCurrent );
2530
2531         // select all the items between the old and the new one
2532         if ( oldCurrent > newCurrent )
2533         {
2534             newCurrent = oldCurrent;
2535             oldCurrent = m_currentRow;
2536         }
2537
2538         SelectRows( oldCurrent, newCurrent, true );
2539         if (oldCurrent!=newCurrent)
2540             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2541     }
2542     else // !shift
2543     {
2544         RefreshRow( oldCurrent );
2545
2546         // all previously selected items are unselected unless ctrl is held
2547         if ( !event.ControlDown() )
2548             SelectAllRows(false);
2549
2550         ChangeCurrentRow( newCurrent );
2551
2552         if ( !event.ControlDown() )
2553         {
2554             SelectRow( m_currentRow, true );
2555             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2556         }
2557         else
2558             RefreshRow( m_currentRow );
2559     }
2560
2561     GetOwner()->EnsureVisible( m_currentRow, -1 );
2562 }
2563
2564 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2565 {
2566     wxRect rect;
2567     rect.x = 0;
2568     rect.y = GetLineStart( row );
2569     rect.width = GetEndOfLastCol();
2570     rect.height = GetLineHeight( row );
2571
2572     return rect;
2573 }
2574
2575 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2576 {
2577     const wxDataViewModel *model = GetOwner()->GetModel();
2578
2579     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2580     {
2581         // TODO make more efficient
2582
2583         int start = 0;
2584
2585         unsigned int r;
2586         for (r = 0; r < row; r++)
2587         {
2588             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2589             if (!node) return start;
2590
2591             wxDataViewItem item = node->GetItem();
2592
2593             if (node && !node->HasChildren())
2594             {
2595                 // Yes, if the node does not have any child, it must be a leaf which
2596                 // mean that it is a temporarily created by GetTreeNodeByRow
2597                 wxDELETE(node);
2598             }
2599
2600             unsigned int cols = GetOwner()->GetColumnCount();
2601             unsigned int col;
2602             int height = m_lineHeight;
2603             for (col = 0; col < cols; col++)
2604             {
2605                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2606                 if (column->IsHidden())
2607                     continue;      // skip it!
2608
2609                 if ((col != 0) &&
2610                     model->IsContainer(item) &&
2611                     !model->HasContainerColumns(item))
2612                     continue;      // skip it!
2613
2614                 wxDataViewRenderer *renderer =
2615                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2616                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2617
2618                 height = wxMax( height, renderer->GetSize().y );
2619             }
2620
2621             start += height;
2622         }
2623
2624         return start;
2625     }
2626     else
2627     {
2628         return row * m_lineHeight;
2629     }
2630 }
2631
2632 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2633 {
2634     const wxDataViewModel *model = GetOwner()->GetModel();
2635
2636     // check for the easy case first
2637     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2638         return y / m_lineHeight;
2639
2640     // TODO make more efficient
2641     unsigned int row = 0;
2642     unsigned int yy = 0;
2643     for (;;)
2644     {
2645         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2646         if (!node)
2647         {
2648             // not really correct...
2649             return row + ((y-yy) / m_lineHeight);
2650         }
2651
2652         wxDataViewItem item = node->GetItem();
2653
2654         if (node && !node->HasChildren())
2655         {
2656             // Yes, if the node does not have any child, it must be a leaf which
2657             // mean that it is a temporarily created by GetTreeNodeByRow
2658             wxDELETE(node);
2659         }
2660
2661         unsigned int cols = GetOwner()->GetColumnCount();
2662         unsigned int col;
2663         int height = m_lineHeight;
2664         for (col = 0; col < cols; col++)
2665         {
2666             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2667             if (column->IsHidden())
2668                 continue;      // skip it!
2669
2670             if ((col != 0) &&
2671                 model->IsContainer(item) &&
2672                 !model->HasContainerColumns(item))
2673                 continue;      // skip it!
2674
2675             wxDataViewRenderer *renderer =
2676                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2677             renderer->PrepareForItem(model, item, column->GetModelColumn());
2678
2679             height = wxMax( height, renderer->GetSize().y );
2680         }
2681
2682         yy += height;
2683         if (y < yy)
2684             return row;
2685
2686         row++;
2687     }
2688 }
2689
2690 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2691 {
2692     const wxDataViewModel *model = GetOwner()->GetModel();
2693
2694     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2695     {
2696         wxASSERT( !IsVirtualList() );
2697
2698         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2699         // wxASSERT( node );
2700         if (!node) return m_lineHeight;
2701
2702         wxDataViewItem item = node->GetItem();
2703
2704         if (node && !node->HasChildren())
2705         {
2706                 // Yes, if the node does not have any child, it must be a leaf which
2707                 // mean that it is a temporarily created by GetTreeNodeByRow
2708             wxDELETE(node);
2709         }
2710
2711         int height = m_lineHeight;
2712
2713         unsigned int cols = GetOwner()->GetColumnCount();
2714         unsigned int col;
2715         for (col = 0; col < cols; col++)
2716         {
2717             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2718             if (column->IsHidden())
2719                 continue;      // skip it!
2720
2721             if ((col != 0) &&
2722                 model->IsContainer(item) &&
2723                 !model->HasContainerColumns(item))
2724                 continue;      // skip it!
2725
2726             wxDataViewRenderer *renderer =
2727                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2728             renderer->PrepareForItem(model, item, column->GetModelColumn());
2729
2730             height = wxMax( height, renderer->GetSize().y );
2731         }
2732
2733         return height;
2734     }
2735     else
2736     {
2737         return m_lineHeight;
2738     }
2739 }
2740
2741 class RowToItemJob: public DoJob
2742 {
2743 public:
2744     RowToItemJob( unsigned int row , int current )
2745         { this->row = row; this->current = current; }
2746     virtual ~RowToItemJob() {}
2747
2748     virtual int operator() ( wxDataViewTreeNode * node )
2749     {
2750         current ++;
2751         if( current == static_cast<int>(row))
2752         {
2753             ret = node->GetItem();
2754             return DoJob::OK;
2755         }
2756
2757         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2758         {
2759             current += node->GetSubTreeCount();
2760             return  DoJob::IGR;
2761         }
2762         else
2763         {
2764             // If the current has no child node, we can find the desired item of the row
2765             // number directly.
2766             // This if can speed up finding in some case, and will has a very good effect
2767             // when it comes to list view
2768             if( node->GetNodes().GetCount() == 0)
2769             {
2770                 int index = static_cast<int>(row) - current - 1;
2771                 ret = wxDataViewItem(node->GetChildren().Item( index ));
2772                 return DoJob::OK;
2773             }
2774             return DoJob::CONT;
2775         }
2776     }
2777
2778     virtual int operator() ( void * n )
2779     {
2780         current ++;
2781         if( current == static_cast<int>(row))
2782         {
2783             ret = wxDataViewItem( n );
2784             return DoJob::OK;
2785         }
2786         return DoJob::CONT;
2787     }
2788
2789     wxDataViewItem GetResult() const
2790         { return ret; }
2791
2792 private:
2793     unsigned int row;
2794     int current;
2795     wxDataViewItem ret;
2796 };
2797
2798 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2799 {
2800     if (IsVirtualList())
2801     {
2802         return wxDataViewItem( wxUIntToPtr(row+1) );
2803     }
2804     else
2805     {
2806         RowToItemJob job( row, -2 );
2807         Walker( m_root , job );
2808         return job.GetResult();
2809     }
2810 }
2811
2812 class RowToTreeNodeJob: public DoJob
2813 {
2814 public:
2815     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2816     {
2817         this->row = row;
2818         this->current = current;
2819         ret = NULL;
2820         parent = node;
2821     }
2822     virtual ~RowToTreeNodeJob(){ }
2823
2824     virtual int operator() ( wxDataViewTreeNode * node )
2825     {
2826         current ++;
2827         if( current == static_cast<int>(row))
2828         {
2829             ret = node;
2830             return DoJob::OK;
2831         }
2832
2833         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2834         {
2835             current += node->GetSubTreeCount();
2836             return  DoJob::IGR;
2837         }
2838         else
2839         {
2840             parent = node;
2841
2842             // If the current node has no children, we can find the desired item of the
2843             // row number directly.
2844             // This if can speed up finding in some case, and will have a very good
2845             // effect for list views.
2846             if( node->GetNodes().GetCount() == 0)
2847             {
2848                 int index = static_cast<int>(row) - current - 1;
2849                 void * n = node->GetChildren().Item( index );
2850                 ret = new wxDataViewTreeNode( parent );
2851                 ret->SetItem( wxDataViewItem( n ));
2852                 ret->SetHasChildren(false);
2853                 return DoJob::OK;
2854             }
2855             return DoJob::CONT;
2856         }
2857     }
2858
2859     virtual int operator() ( void * n )
2860     {
2861         current ++;
2862         if( current == static_cast<int>(row))
2863         {
2864             ret = new wxDataViewTreeNode( parent );
2865             ret->SetItem( wxDataViewItem( n ));
2866             ret->SetHasChildren(false);
2867             return DoJob::OK;
2868         }
2869
2870         return DoJob::CONT;
2871     }
2872
2873     wxDataViewTreeNode * GetResult() const
2874         { return ret; }
2875
2876 private:
2877     unsigned int row;
2878     int current;
2879     wxDataViewTreeNode * ret;
2880     wxDataViewTreeNode * parent;
2881 };
2882
2883 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2884 {
2885     wxASSERT( !IsVirtualList() );
2886
2887     RowToTreeNodeJob job( row , -2, m_root );
2888     Walker( m_root , job );
2889     return job.GetResult();
2890 }
2891
2892 bool
2893 wxDataViewMainWindow::SendExpanderEvent(wxEventType type,
2894                                         const wxDataViewItem& item)
2895 {
2896     wxWindow *parent = GetParent();
2897     wxDataViewEvent le(type, parent->GetId());
2898
2899     le.SetEventObject(parent);
2900     le.SetModel(GetOwner()->GetModel());
2901     le.SetItem( item );
2902
2903     return !parent->ProcessWindowEvent(le) || le.IsAllowed();
2904 }
2905
2906 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2907 {
2908     if (IsList())
2909         return false;
2910
2911     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2912     if (!node)
2913         return false;
2914
2915     if (!node->HasChildren())
2916     {
2917         delete node;
2918         return false;
2919     }
2920
2921     return node->IsOpen();
2922 }
2923
2924 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2925 {
2926     if (IsList())
2927         return false;
2928
2929     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2930     if (!node)
2931         return false;
2932
2933     if (!node->HasChildren())
2934     {
2935         delete node;
2936         return false;
2937     }
2938
2939     return true;
2940 }
2941
2942 void wxDataViewMainWindow::Expand( unsigned int row )
2943 {
2944     if (IsList())
2945         return;
2946
2947     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2948     if (!node)
2949         return;
2950
2951     if (!node->HasChildren())
2952     {
2953         delete node;
2954         return;
2955     }
2956
2957             if (!node->IsOpen())
2958             {
2959                 if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem()) )
2960                 {
2961                     // Vetoed by the event handler.
2962                     return;
2963                 }
2964
2965                 node->ToggleOpen();
2966
2967                 // build the children of current node
2968                 if( node->GetChildrenNumber() == 0 )
2969                 {
2970                     SortPrepare();
2971                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2972                 }
2973
2974                 // By expanding the node all row indices that are currently in the selection list
2975                 // and are greater than our node have become invalid. So we have to correct that now.
2976                 const unsigned rowAdjustment = node->GetSubTreeCount();
2977                 for(unsigned i=0; i<m_selection.size(); ++i)
2978                 {
2979                     const unsigned testRow = m_selection[i];
2980                     // all rows above us are not affected, so skip them
2981                     if(testRow <= row)
2982                         continue;
2983
2984                     m_selection[i] += rowAdjustment;
2985                 }
2986
2987                 if(m_currentRow > row)
2988                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2989
2990                 m_count = -1;
2991                 UpdateDisplay();
2992                 // Send the expanded event
2993                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2994             }
2995 }
2996
2997 void wxDataViewMainWindow::Collapse(unsigned int row)
2998 {
2999     if (IsList())
3000         return;
3001
3002     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
3003     if (!node)
3004         return;
3005
3006     if (!node->HasChildren())
3007     {
3008         delete node;
3009         return;
3010     }
3011
3012         if (node->IsOpen())
3013         {
3014             if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem()) )
3015             {
3016                 // Vetoed by the event handler.
3017                 return;
3018             }
3019
3020             // Find out if there are selected items below the current node.
3021             bool selectCollapsingRow = false;
3022             const unsigned rowAdjustment = node->GetSubTreeCount();
3023             unsigned maxRowToBeTested = row + rowAdjustment;
3024             for(unsigned i=0; i<m_selection.size(); ++i)
3025             {
3026                 const unsigned testRow = m_selection[i];
3027                 if(testRow > row && testRow <= maxRowToBeTested)
3028                 {
3029                     selectCollapsingRow = true;
3030                     // get out as soon as we have found a node that is selected
3031                     break;
3032                 }
3033             }
3034
3035             node->ToggleOpen();
3036
3037             // If the node to be closed has selected items the user won't see those any longer.
3038             // We select the collapsing node in this case.
3039             if(selectCollapsingRow)
3040             {
3041                 SelectAllRows(false);
3042                 ChangeCurrentRow(row);
3043                 SelectRow(row, true);
3044                 SendSelectionChangedEvent(GetItemByRow(row));
3045             }
3046             else
3047             {
3048                 // if there were no selected items below our node we still need to "fix" the
3049                 // selection list to adjust for the changing of the row indices.
3050                 // We actually do the opposite of what we are doing in Expand().
3051                 for(unsigned i=0; i<m_selection.size(); ++i)
3052                 {
3053                     const unsigned testRow = m_selection[i];
3054                     // all rows above us are not affected, so skip them
3055                     if(testRow <= row)
3056                         continue;
3057
3058                     m_selection[i] -= rowAdjustment;
3059                 }
3060
3061                 // if the "current row" is being collapsed away we change it to the current row ;-)
3062                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3063                     ChangeCurrentRow(row);
3064                 else if(m_currentRow > row)
3065                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3066             }
3067
3068             m_count = -1;
3069             UpdateDisplay();
3070             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3071         }
3072 }
3073
3074 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3075 {
3076     const wxDataViewModel * model = GetOwner()->GetModel();
3077     if( model == NULL )
3078         return NULL;
3079
3080     if (!item.IsOk())
3081         return m_root;
3082
3083     // Compose the parent-chain for the item we are looking for
3084     wxVector<wxDataViewItem> parentChain;
3085     wxDataViewItem it( item );
3086     while( it.IsOk() )
3087     {
3088         parentChain.push_back(it);
3089         it = model->GetParent(it);
3090     }
3091
3092     // Find the item along the parent-chain.
3093     // This algorithm is designed to speed up the node-finding method
3094     wxDataViewTreeNode* node = m_root;
3095     for( unsigned iter = parentChain.size()-1; ; --iter )
3096     {
3097         if( node->HasChildren() )
3098         {
3099             if( node->GetChildrenNumber() == 0 )
3100             {
3101                 SortPrepare();
3102                 ::BuildTreeHelper(model, node->GetItem(), node);
3103             }
3104
3105             const wxDataViewTreeNodes& nodes = node->GetNodes();
3106             bool found = false;
3107
3108             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3109             {
3110                 wxDataViewTreeNode* currentNode = nodes[i];
3111                 if (currentNode->GetItem() == parentChain[iter])
3112                 {
3113                     if (currentNode->GetItem() == item)
3114                         return currentNode;
3115
3116                     node = currentNode;
3117                     found = true;
3118                     break;
3119                 }
3120             }
3121             if (!found)
3122                 return NULL;
3123         }
3124         else
3125             return NULL;
3126
3127         if ( !iter )
3128             break;
3129     }
3130     return NULL;
3131 }
3132
3133 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3134                                     wxDataViewColumn* &column )
3135 {
3136     wxDataViewColumn *col = NULL;
3137     unsigned int cols = GetOwner()->GetColumnCount();
3138     unsigned int colnum = 0;
3139     int x, y;
3140     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3141     for (unsigned x_start = 0; colnum < cols; colnum++)
3142     {
3143         col = GetOwner()->GetColumnAt(colnum);
3144         if (col->IsHidden())
3145             continue;      // skip it!
3146
3147         unsigned int w = col->GetWidth();
3148         if (x_start+w >= (unsigned int)x)
3149             break;
3150
3151         x_start += w;
3152     }
3153
3154     column = col;
3155     item = GetItemByRow( GetLineAt( y ) );
3156 }
3157
3158 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3159                                           const wxDataViewColumn* column )
3160 {
3161     int xpos = 0;
3162     int width = 0;
3163
3164     unsigned int cols = GetOwner()->GetColumnCount();
3165     // If column is null the loop will compute the combined width of all columns.
3166     // Otherwise, it will compute the x position of the column we are looking for.
3167     for (unsigned int i = 0; i < cols; i++)
3168     {
3169         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3170
3171         if (col == column)
3172             break;
3173
3174         if (col->IsHidden())
3175             continue;      // skip it!
3176
3177         xpos += col->GetWidth();
3178         width += col->GetWidth();
3179     }
3180
3181     if(column != 0)
3182     {
3183         // If we have a column, we need can get its width directly.
3184         if(column->IsHidden())
3185             width = 0;
3186         else
3187             width = column->GetWidth();
3188
3189     }
3190     else
3191     {
3192         // If we have no column, we reset the x position back to zero.
3193         xpos = 0;
3194     }
3195
3196     // we have to take an expander column into account and compute its indentation
3197     // to get the correct x position where the actual text is
3198     int indent = 0;
3199     int row = GetRowByItem(item);
3200     if (!IsList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3201     {
3202         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3203         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3204         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3205
3206         if(!node->HasChildren())
3207             delete node;
3208     }
3209
3210     wxRect itemRect( xpos + indent,
3211                      GetLineStart( row ),
3212                      width - indent,
3213                      GetLineHeight( row ) );
3214
3215     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3216                                       &itemRect.x, &itemRect.y );
3217
3218     return itemRect;
3219 }
3220
3221 int wxDataViewMainWindow::RecalculateCount()
3222 {
3223     if (IsVirtualList())
3224     {
3225         wxDataViewVirtualListModel *list_model =
3226             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3227
3228         return list_model->GetCount();
3229     }
3230     else
3231     {
3232         return m_root->GetSubTreeCount();
3233     }
3234 }
3235
3236 class ItemToRowJob : public DoJob
3237 {
3238 public:
3239     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3240         : m_iter(iter),
3241         item(item_)
3242     {
3243         ret = -1;
3244     }
3245
3246     // Maybe binary search will help to speed up this process
3247     virtual int operator() ( wxDataViewTreeNode * node)
3248     {
3249         ret ++;
3250         if( node->GetItem() == item )
3251         {
3252             return DoJob::OK;
3253         }
3254
3255         if( node->GetItem() == *m_iter )
3256         {
3257             m_iter++;
3258             return DoJob::CONT;
3259         }
3260         else
3261         {
3262             ret += node->GetSubTreeCount();
3263             return DoJob::IGR;
3264         }
3265
3266     }
3267
3268     virtual int operator() ( void * n )
3269     {
3270         ret ++;
3271         if( n == item.GetID() )
3272             return DoJob::OK;
3273         return DoJob::CONT;
3274     }
3275
3276     // the row number is begin from zero
3277     int GetResult() const
3278         { return ret -1; }
3279
3280 private:
3281     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3282     wxDataViewItem item;
3283     int ret;
3284
3285 };
3286
3287 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3288 {
3289     const wxDataViewModel * model = GetOwner()->GetModel();
3290     if( model == NULL )
3291         return -1;
3292
3293     if (IsVirtualList())
3294     {
3295         return wxPtrToUInt( item.GetID() ) -1;
3296     }
3297     else
3298     {
3299         if( !item.IsOk() )
3300             return -1;
3301
3302         // Compose the parent-chain of the item we are looking for
3303         wxVector<wxDataViewItem> parentChain;
3304         wxDataViewItem it( item );
3305         while( it.IsOk() )
3306         {
3307             parentChain.push_back(it);
3308             it = model->GetParent(it);
3309         }
3310
3311         // add an 'invalid' item to represent our 'invisible' root node
3312         parentChain.push_back(wxDataViewItem());
3313
3314         // the parent chain was created by adding the deepest parent first.
3315         // so if we want to start at the root node, we have to iterate backwards through the vector
3316         ItemToRowJob job( item, parentChain.rbegin() );
3317         Walker( m_root, job );
3318         return job.GetResult();
3319     }
3320 }
3321
3322 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3323                              wxDataViewTreeNode * node)
3324 {
3325     if( !model->IsContainer( item ) )
3326         return;
3327
3328     wxDataViewItemArray children;
3329     unsigned int num = model->GetChildren( item, children);
3330
3331     unsigned int index = 0;
3332     while( index < num )
3333     {
3334         if( model->IsContainer( children[index] ) )
3335         {
3336             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3337             n->SetItem(children[index]);
3338             n->SetHasChildren( true );
3339             node->AddNode( n );
3340         }
3341         else
3342         {
3343             node->AddLeaf( children[index].GetID() );
3344         }
3345         index ++;
3346     }
3347     node->SetSubTreeCount( num );
3348     wxDataViewTreeNode * n = node->GetParent();
3349     if( n != NULL)
3350         n->ChangeSubTreeCount(num);
3351
3352 }
3353
3354 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3355 {
3356     DestroyTree();
3357
3358     if (GetOwner()->GetModel()->IsVirtualListModel())
3359     {
3360         m_count = -1;
3361         return;
3362     }
3363
3364     m_root = new wxDataViewTreeNode( NULL );
3365     m_root->SetHasChildren(true);
3366
3367     // First we define a invalid item to fetch the top-level elements
3368     wxDataViewItem item;
3369     SortPrepare();
3370     BuildTreeHelper( model, item, m_root);
3371     m_count = -1;
3372 }
3373
3374 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3375 {
3376     if( node->GetNodeNumber() != 0 )
3377     {
3378         int len = node->GetNodeNumber();
3379         wxDataViewTreeNodes& nodes = node->GetNodes();
3380         for (int i = 0; i < len; i++)
3381             DestroyTreeHelper(nodes[i]);
3382     }
3383     delete node;
3384 }
3385
3386 void wxDataViewMainWindow::DestroyTree()
3387 {
3388     if (!IsVirtualList())
3389     {
3390         ::DestroyTreeHelper(m_root);
3391             m_count = 0;
3392             m_root = NULL;
3393     }
3394 }
3395
3396 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3397 {
3398     wxWindow * const parent = GetParent();
3399
3400     // propagate the char event upwards
3401     wxKeyEvent eventForParent(event);
3402     eventForParent.SetEventObject(parent);
3403     if ( parent->ProcessWindowEvent(eventForParent) )
3404         return;
3405
3406     if ( parent->HandleAsNavigationKey(event) )
3407         return;
3408
3409     // no item -> nothing to do
3410     if (!HasCurrentRow())
3411     {
3412         event.Skip();
3413         return;
3414     }
3415
3416     // don't use m_linesPerPage directly as it might not be computed yet
3417     const int pageSize = GetCountPerPage();
3418     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3419
3420     switch ( event.GetKeyCode() )
3421     {
3422         case WXK_RETURN:
3423             {
3424                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3425                                    parent->GetId());
3426                 le.SetItem( GetItemByRow(m_currentRow) );
3427                 le.SetEventObject(parent);
3428                 le.SetModel(GetOwner()->GetModel());
3429
3430                 parent->GetEventHandler()->ProcessEvent(le);
3431             }
3432             break;
3433
3434         case WXK_UP:
3435             if ( m_currentRow > 0 )
3436                 OnArrowChar( m_currentRow - 1, event );
3437             break;
3438
3439         case WXK_DOWN:
3440             if ( m_currentRow + 1 < GetRowCount() )
3441                 OnArrowChar( m_currentRow + 1, event );
3442             break;
3443         // Add the process for tree expanding/collapsing
3444         case WXK_LEFT:
3445         {
3446             if (IsList())
3447                break;
3448
3449             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3450             if (!node)
3451                 break;
3452
3453             if (node->HasChildren() && node->IsOpen())
3454             {
3455                 Collapse(m_currentRow);
3456             }
3457             else    // if the node is already closed we move the selection to its parent
3458             {
3459                 wxDataViewTreeNode *parent_node = node->GetParent();
3460
3461                 if(!node->HasChildren())
3462                     delete node;
3463
3464                 if (parent_node)
3465                 {
3466                     int parent = GetRowByItem( parent_node->GetItem() );
3467                     if ( parent >= 0 )
3468                     {
3469                         unsigned int row = m_currentRow;
3470                         SelectRow( row, false);
3471                         SelectRow( parent, true );
3472                         ChangeCurrentRow( parent );
3473                         GetOwner()->EnsureVisible( parent, -1 );
3474                         SendSelectionChangedEvent( parent_node->GetItem() );
3475                     }
3476                 }
3477             }
3478             break;
3479         }
3480         case WXK_RIGHT:
3481         {
3482             if (!IsExpanded( m_currentRow ))
3483                 Expand( m_currentRow );
3484             else
3485             {
3486                 unsigned int row = m_currentRow;
3487                 SelectRow( row, false );
3488                 SelectRow( row + 1, true );
3489                 ChangeCurrentRow( row + 1 );
3490                 GetOwner()->EnsureVisible( row + 1, -1 );
3491                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3492             }
3493             break;
3494         }
3495         case WXK_END:
3496         {
3497             if (!IsEmpty())
3498                 OnArrowChar( GetRowCount() - 1, event );
3499             break;
3500         }
3501         case WXK_HOME:
3502             if (!IsEmpty())
3503                 OnArrowChar( 0, event );
3504             break;
3505
3506         case WXK_PAGEUP:
3507             {
3508                 int steps = pageSize - 1;
3509                 int index = m_currentRow - steps;
3510                 if (index < 0)
3511                     index = 0;
3512
3513                 OnArrowChar( index, event );
3514             }
3515             break;
3516
3517         case WXK_PAGEDOWN:
3518             {
3519                 int steps = pageSize - 1;
3520                 unsigned int index = m_currentRow + steps;
3521                 unsigned int count = GetRowCount();
3522                 if ( index >= count )
3523                     index = count - 1;
3524
3525                 OnArrowChar( index, event );
3526             }
3527             break;
3528
3529         case WXK_F2:
3530             {
3531                 if(m_selection.size() == 1)
3532                 {
3533                     // TODO: we need to revise that when we have a concept for a 'current column'
3534                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3535                 }
3536             }
3537             break;
3538
3539         default:
3540             event.Skip();
3541     }
3542 }
3543
3544 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3545 {
3546     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3547     {
3548         // let the base handle mouse wheel events.
3549         event.Skip();
3550         return;
3551     }
3552
3553     // set the focus to ourself if any of the mouse buttons are pressed
3554     if(event.ButtonDown() && !HasFocus())
3555         SetFocus();
3556
3557     int x = event.GetX();
3558     int y = event.GetY();
3559     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3560     wxDataViewColumn *col = NULL;
3561
3562     int xpos = 0;
3563     unsigned int cols = GetOwner()->GetColumnCount();
3564     unsigned int i;
3565     for (i = 0; i < cols; i++)
3566     {
3567         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3568         if (c->IsHidden())
3569             continue;      // skip it!
3570
3571         if (x < xpos + c->GetWidth())
3572         {
3573             col = c;
3574             break;
3575         }
3576         xpos += c->GetWidth();
3577     }
3578     if (!col)
3579     {
3580         event.Skip();
3581         return;
3582     }
3583
3584     wxDataViewRenderer *cell = col->GetRenderer();
3585     unsigned int current = GetLineAt( y );
3586     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3587     {
3588         // Unselect all if below the last row ?
3589         event.Skip();
3590         return;
3591     }
3592
3593     // Test whether the mouse is hovering over the expander (a.k.a tree "+"
3594     // button) and also determine the offset of the real cell start, skipping
3595     // the indentation and the expander itself.
3596     bool hoverOverExpander = false;
3597     int expanderOffset = 0;
3598     if ((!IsList()) && (GetOwner()->GetExpanderColumn() == col))
3599     {
3600         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3601         if( node!=NULL && node->HasChildren() )
3602         {
3603             int indent = node->GetIndentLevel();
3604             indent = GetOwner()->GetIndent()*indent;
3605
3606             // we make the rectangle we are looking in a bit bigger than the actual
3607             // visual expander so the user can hit that little thing reliably
3608             wxRect rect( xpos + indent,
3609                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3610                         m_lineHeight, m_lineHeight);
3611
3612             expanderOffset = indent + m_lineHeight;
3613
3614             if( rect.Contains(x, y) )
3615             {
3616                 // So the mouse is over the expander
3617                 hoverOverExpander = true;
3618                 if (m_underMouse && m_underMouse != node)
3619                 {
3620                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3621                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3622                 }
3623                 if (m_underMouse != node)
3624                 {
3625                     // wxLogMessage("Do the row: %d", current);
3626                     RefreshRow(current);
3627                 }
3628                 m_underMouse = node;
3629             }
3630         }
3631         if (node!=NULL && !node->HasChildren())
3632             delete node;
3633     }
3634     if (!hoverOverExpander)
3635     {
3636         if (m_underMouse != NULL)
3637         {
3638             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3639             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3640             m_underMouse = NULL;
3641         }
3642     }
3643
3644     wxDataViewModel *model = GetOwner()->GetModel();
3645
3646 #if wxUSE_DRAG_AND_DROP
3647     if (event.Dragging())
3648     {
3649         if (m_dragCount == 0)
3650         {
3651             // we have to report the raw, physical coords as we want to be
3652             // able to call HitTest(event.m_pointDrag) from the user code to
3653             // get the item being dragged
3654             m_dragStart = event.GetPosition();
3655         }
3656
3657         m_dragCount++;
3658
3659         if (m_dragCount != 3)
3660             return;
3661
3662         if (event.LeftIsDown())
3663         {
3664             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3665                                              &m_dragStart.x, &m_dragStart.y );
3666             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3667             wxDataViewItem item = GetItemByRow( drag_item_row );
3668
3669             // Notify cell about drag
3670             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3671             event.SetEventObject( m_owner );
3672             event.SetItem( item );
3673             event.SetModel( model );
3674             if (!m_owner->HandleWindowEvent( event ))
3675                 return;
3676
3677             if (!event.IsAllowed())
3678                 return;
3679
3680             wxDataObject *obj = event.GetDataObject();
3681             if (!obj)
3682                 return;
3683
3684             wxDataViewDropSource drag( this, drag_item_row );
3685             drag.SetData( *obj );
3686             /* wxDragResult res = */ drag.DoDragDrop();
3687             delete obj;
3688         }
3689         return;
3690     }
3691     else
3692     {
3693         m_dragCount = 0;
3694     }
3695 #endif // wxUSE_DRAG_AND_DROP
3696
3697     bool simulateClick = false;
3698
3699     if (event.ButtonDClick())
3700     {
3701         m_renameTimer->Stop();
3702         m_lastOnSame = false;
3703     }
3704
3705     wxDataViewItem item = GetItemByRow(current);
3706     bool ignore_other_columns =
3707         ((GetOwner()->GetExpanderColumn() != col) &&
3708         (model->IsContainer(item)) &&
3709         (!model->HasContainerColumns(item)));
3710
3711     if (event.LeftDClick())
3712     {
3713         if(hoverOverExpander)
3714         {
3715             // a double click on the expander will be converted into a "simulated" normal click
3716             simulateClick = true;
3717         }
3718         else if ( current == m_lineLastClicked )
3719         {
3720             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3721             {
3722                 const unsigned colIdx = col->GetModelColumn();
3723
3724                 cell->PrepareForItem(model, item, colIdx);
3725
3726                 wxRect cell_rect( xpos, GetLineStart( current ),
3727                                 col->GetWidth(), GetLineHeight( current ) );
3728                 cell->WXOnActivate( cell_rect, model, item, colIdx );
3729             }
3730             else
3731             {
3732                 wxWindow *parent = GetParent();
3733                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3734                 le.SetItem( item );
3735                 le.SetColumn( col->GetModelColumn() );
3736                 le.SetDataViewColumn( col );
3737                 le.SetEventObject(parent);
3738                 le.SetModel(GetOwner()->GetModel());
3739
3740                 parent->GetEventHandler()->ProcessEvent(le);
3741             }
3742             return;
3743         }
3744         else
3745         {
3746             // The first click was on another item, so don't interpret this as
3747             // a double click, but as a simple click instead
3748             simulateClick = true;
3749         }
3750     }
3751
3752     if (event.LeftUp() && !hoverOverExpander)
3753     {
3754         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3755         {
3756             // select single line
3757             SelectAllRows( false );
3758             SelectRow( m_lineSelectSingleOnUp, true );
3759             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3760         }
3761
3762         // If the user click the expander, we do not do editing even if the column
3763         // with expander are editable
3764         if (m_lastOnSame && !ignore_other_columns)
3765         {
3766             if ((col == m_currentCol) && (current == m_currentRow) &&
3767                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3768             {
3769                 m_renameTimer->Start( 100, true );
3770             }
3771         }
3772
3773         m_lastOnSame = false;
3774         m_lineSelectSingleOnUp = (unsigned int)-1;
3775     }
3776     else if(!event.LeftUp())
3777     {
3778         // This is necessary, because after a DnD operation in
3779         // from and to ourself, the up event is swallowed by the
3780         // DnD code. So on next non-up event (which means here and
3781         // now) m_lineSelectSingleOnUp should be reset.
3782         m_lineSelectSingleOnUp = (unsigned int)-1;
3783     }
3784
3785     if (event.RightDown())
3786     {
3787         m_lineBeforeLastClicked = m_lineLastClicked;
3788         m_lineLastClicked = current;
3789
3790         // If the item is already selected, do not update the selection.
3791         // Multi-selections should not be cleared if a selected item is clicked.
3792         if (!IsRowSelected(current))
3793         {
3794             SelectAllRows(false);
3795             const unsigned oldCurrent = m_currentRow;
3796             ChangeCurrentRow(current);
3797             SelectRow(m_currentRow,true);
3798             RefreshRow(oldCurrent);
3799             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3800         }
3801     }
3802     else if (event.RightUp())
3803     {
3804         wxVariant value;
3805         model->GetValue( value, item, col->GetModelColumn() );
3806         wxWindow *parent = GetParent();
3807         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3808         le.SetItem( item );
3809         le.SetColumn( col->GetModelColumn() );
3810         le.SetDataViewColumn( col );
3811         le.SetEventObject(parent);
3812         le.SetModel(GetOwner()->GetModel());
3813         le.SetValue(value);
3814         parent->GetEventHandler()->ProcessEvent(le);
3815     }
3816     else if (event.MiddleDown())
3817     {
3818     }
3819
3820     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3821     {
3822         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3823
3824         // hoverOverExpander being true tells us that our node must be
3825         // valid and have children.
3826         // So we don't need any extra checks.
3827         if( node->IsOpen() )
3828             Collapse(current);
3829         else
3830             Expand(current);
3831     }
3832     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3833     {
3834         m_lineBeforeLastClicked = m_lineLastClicked;
3835         m_lineLastClicked = current;
3836
3837         unsigned int oldCurrentRow = m_currentRow;
3838         bool oldWasSelected = IsRowSelected(m_currentRow);
3839
3840         bool cmdModifierDown = event.CmdDown();
3841         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3842         {
3843             if ( IsSingleSel() || !IsRowSelected(current) )
3844             {
3845                 SelectAllRows( false );
3846                 ChangeCurrentRow(current);
3847                 SelectRow(m_currentRow,true);
3848                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3849             }
3850             else // multi sel & current is highlighted & no mod keys
3851             {
3852                 m_lineSelectSingleOnUp = current;
3853                 ChangeCurrentRow(current); // change focus
3854             }
3855         }
3856         else // multi sel & either ctrl or shift is down
3857         {
3858             if (cmdModifierDown)
3859             {
3860                 ChangeCurrentRow(current);
3861                 ReverseRowSelection(m_currentRow);
3862                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3863             }
3864             else if (event.ShiftDown())
3865             {
3866                 ChangeCurrentRow(current);
3867
3868                 unsigned int lineFrom = oldCurrentRow,
3869                     lineTo = current;
3870
3871                 if ( lineTo < lineFrom )
3872                 {
3873                     lineTo = lineFrom;
3874                     lineFrom = m_currentRow;
3875                 }
3876
3877                 SelectRows(lineFrom, lineTo, true);
3878                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3879             }
3880             else // !ctrl, !shift
3881             {
3882                 // test in the enclosing if should make it impossible
3883                 wxFAIL_MSG( wxT("how did we get here?") );
3884             }
3885         }
3886
3887         if (m_currentRow != oldCurrentRow)
3888             RefreshRow( oldCurrentRow );
3889
3890         wxDataViewColumn *oldCurrentCol = m_currentCol;
3891
3892         // Update selection here...
3893         m_currentCol = col;
3894
3895         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3896                         (current == oldCurrentRow)) && oldWasSelected;
3897
3898         // Call LeftClick after everything else as under GTK+
3899         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3900         {
3901             // notify cell about click
3902             cell->PrepareForItem(model, item, col->GetModelColumn());
3903
3904             wxRect cell_rect( xpos + expanderOffset,
3905                               GetLineStart( current ),
3906                               col->GetWidth() - expanderOffset,
3907                               GetLineHeight( current ) );
3908
3909             // Report position relative to the cell's custom area, i.e.
3910             // no the entire space as given by the control but the one
3911             // used by the renderer after calculation of alignment etc.
3912
3913             // adjust the rectangle ourselves to account for the alignment
3914             wxRect rectItem = cell_rect;
3915             const int align = cell->GetAlignment();
3916             if ( align != wxDVR_DEFAULT_ALIGNMENT )
3917             {
3918                 const wxSize size = cell->GetSize();
3919
3920                 if ( size.x >= 0 && size.x < cell_rect.width )
3921                 {
3922                     if ( align & wxALIGN_CENTER_HORIZONTAL )
3923                         rectItem.x += (cell_rect.width - size.x)/2;
3924                     else if ( align & wxALIGN_RIGHT )
3925                         rectItem.x += cell_rect.width - size.x;
3926                     // else: wxALIGN_LEFT is the default
3927                 }
3928
3929                 if ( size.y >= 0 && size.y < cell_rect.height )
3930                 {
3931                     if ( align & wxALIGN_CENTER_VERTICAL )
3932                         rectItem.y += (cell_rect.height - size.y)/2;
3933                     else if ( align & wxALIGN_BOTTOM )
3934                         rectItem.y += cell_rect.height - size.y;
3935                     // else: wxALIGN_TOP is the default
3936                 }
3937             }
3938
3939             wxPoint pos( event.GetPosition() );
3940             pos.x -= rectItem.x;
3941             pos.y -= rectItem.y;
3942
3943             m_owner->CalcUnscrolledPosition( pos.x, pos.y, &pos.x, &pos.y );
3944
3945              /* ignore ret */ cell->WXOnLeftClick( pos, cell_rect,
3946                               model, item, col->GetModelColumn());
3947         }
3948     }
3949 }
3950
3951 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3952 {
3953     m_hasFocus = true;
3954
3955     if (HasCurrentRow())
3956         Refresh();
3957
3958     event.Skip();
3959 }
3960
3961 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3962 {
3963     m_hasFocus = false;
3964
3965     if (HasCurrentRow())
3966         Refresh();
3967
3968     event.Skip();
3969 }
3970
3971 //-----------------------------------------------------------------------------
3972 // wxDataViewCtrl
3973 //-----------------------------------------------------------------------------
3974
3975 WX_DEFINE_LIST(wxDataViewColumnList)
3976
3977 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3978 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3979     EVT_SIZE(wxDataViewCtrl::OnSize)
3980 END_EVENT_TABLE()
3981
3982 wxDataViewCtrl::~wxDataViewCtrl()
3983 {
3984     if (m_notifier)
3985         GetModel()->RemoveNotifier( m_notifier );
3986
3987     m_cols.Clear();
3988     m_colsBestWidths.clear();
3989 }
3990
3991 void wxDataViewCtrl::Init()
3992 {
3993     m_cols.DeleteContents(true);
3994     m_notifier = NULL;
3995
3996     // No sorting column at start
3997     m_sortingColumnIdx = wxNOT_FOUND;
3998
3999     m_headerArea = NULL;
4000 }
4001
4002 bool wxDataViewCtrl::Create(wxWindow *parent,
4003                             wxWindowID id,
4004                             const wxPoint& pos,
4005                             const wxSize& size,
4006                             long style,
4007                             const wxValidator& validator,
4008                             const wxString& name)
4009 {
4010 //    if ( (style & wxBORDER_MASK) == 0)
4011 //        style |= wxBORDER_SUNKEN;
4012
4013     Init();
4014
4015     if (!wxControl::Create( parent, id, pos, size,
4016                             style | wxScrolledWindowStyle, validator, name))
4017         return false;
4018
4019     SetInitialSize(size);
4020
4021 #ifdef __WXMAC__
4022     MacSetClipChildren( true );
4023 #endif
4024
4025     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4026
4027     // We use the cursor keys for moving the selection, not scrolling, so call
4028     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4029     // keyboard events forwarded to us from wxListMainWindow.
4030     DisableKeyboardScrolling();
4031
4032     if (HasFlag(wxDV_NO_HEADER))
4033         m_headerArea = NULL;
4034     else
4035         m_headerArea = new wxDataViewHeaderWindow(this);
4036
4037     SetTargetWindow( m_clientArea );
4038
4039     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4040     if (m_headerArea)
4041         sizer->Add( m_headerArea, 0, wxGROW );
4042     sizer->Add( m_clientArea, 1, wxGROW );
4043     SetSizer( sizer );
4044
4045     return true;
4046 }
4047
4048 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4049 {
4050     return wxBORDER_THEME;
4051 }
4052
4053 #ifdef __WXMSW__
4054 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4055                                         WXWPARAM wParam,
4056                                         WXLPARAM lParam)
4057 {
4058     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4059
4060 #ifndef __WXWINCE__
4061     // we need to process arrows ourselves for scrolling
4062     if ( nMsg == WM_GETDLGCODE )
4063     {
4064         rc |= DLGC_WANTARROWS;
4065     }
4066 #endif
4067
4068     return rc;
4069 }
4070 #endif
4071
4072 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4073 {
4074     wxSize newsize = size;
4075     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4076     newsize.y -= m_headerArea->GetSize().y;
4077
4078     return newsize;
4079 }
4080
4081 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4082 {
4083     // We need to override OnSize so that our scrolled
4084     // window a) does call Layout() to use sizers for
4085     // positioning the controls but b) does not query
4086     // the sizer for their size and use that for setting
4087     // the scrollable area as set that ourselves by
4088     // calling SetScrollbar() further down.
4089
4090     Layout();
4091
4092     AdjustScrollbars();
4093
4094     // We must redraw the headers if their height changed. Normally this
4095     // shouldn't happen as the control shouldn't let itself be resized beneath
4096     // its minimal height but avoid the display artefacts that appear if it
4097     // does happen, e.g. because there is really not enough vertical space.
4098     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4099             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4100     {
4101         m_headerArea->Refresh();
4102     }
4103 }
4104
4105 void wxDataViewCtrl::SetFocus()
4106 {
4107     if (m_clientArea)
4108         m_clientArea->SetFocus();
4109 }
4110
4111 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4112 {
4113     if (!wxDataViewCtrlBase::AssociateModel( model ))
4114         return false;
4115
4116     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4117
4118     model->AddNotifier( m_notifier );
4119
4120     m_clientArea->DestroyTree();
4121
4122     m_clientArea->BuildTree(model);
4123
4124     m_clientArea->UpdateDisplay();
4125
4126     return true;
4127 }
4128
4129 #if wxUSE_DRAG_AND_DROP
4130
4131 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4132 {
4133     return m_clientArea->EnableDragSource( format );
4134 }
4135
4136 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4137 {
4138     return m_clientArea->EnableDropTarget( format );
4139 }
4140
4141 #endif // wxUSE_DRAG_AND_DROP
4142
4143 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4144 {
4145     if (!wxDataViewCtrlBase::AppendColumn(col))
4146         return false;
4147
4148     m_cols.Append( col );
4149     m_colsBestWidths.push_back(0);
4150     OnColumnsCountChanged();
4151     return true;
4152 }
4153
4154 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4155 {
4156     if (!wxDataViewCtrlBase::PrependColumn(col))
4157         return false;
4158
4159     m_cols.Insert( col );
4160     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4161     OnColumnsCountChanged();
4162     return true;
4163 }
4164
4165 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4166 {
4167     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4168         return false;
4169
4170     m_cols.Insert( pos, col );
4171     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4172     OnColumnsCountChanged();
4173     return true;
4174 }
4175
4176 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4177 {
4178     if ( m_headerArea )
4179         m_headerArea->UpdateColumn(idx);
4180
4181     m_clientArea->UpdateDisplay();
4182 }
4183
4184 void wxDataViewCtrl::OnColumnsCountChanged()
4185 {
4186     if (m_headerArea)
4187         m_headerArea->SetColumnCount(GetColumnCount());
4188
4189     m_clientArea->UpdateDisplay();
4190 }
4191
4192 void wxDataViewCtrl::DoSetExpanderColumn()
4193 {
4194     m_clientArea->UpdateDisplay();
4195 }
4196
4197 void wxDataViewCtrl::DoSetIndent()
4198 {
4199     m_clientArea->UpdateDisplay();
4200 }
4201
4202 unsigned int wxDataViewCtrl::GetColumnCount() const
4203 {
4204     return m_cols.GetCount();
4205 }
4206
4207 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4208 {
4209     if ( !m_clientArea )
4210         return false;
4211
4212     m_clientArea->SetRowHeight(lineHeight);
4213
4214     return true;
4215 }
4216
4217 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4218 {
4219     return m_cols[idx];
4220 }
4221
4222 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4223 {
4224     // columns can't be reordered if there is no header window which allows
4225     // to do this
4226     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4227                                     : pos;
4228
4229     return GetColumn(idx);
4230 }
4231
4232 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4233 {
4234     const unsigned count = m_cols.size();
4235     for ( unsigned n = 0; n < count; n++ )
4236     {
4237         if ( m_cols[n] == column )
4238             return n;
4239     }
4240
4241     return wxNOT_FOUND;
4242 }
4243
4244 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4245 {
4246     if ( m_colsBestWidths[idx] != 0 )
4247         return m_colsBestWidths[idx];
4248
4249     const int count = m_clientArea->GetRowCount();
4250     wxDataViewColumn *column = GetColumn(idx);
4251     wxDataViewRenderer *renderer =
4252         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4253
4254     class MaxWidthCalculator
4255     {
4256     public:
4257         MaxWidthCalculator(wxDataViewMainWindow *clientArea,
4258                            wxDataViewRenderer *renderer,
4259                            const wxDataViewModel *model,
4260                            unsigned column)
4261             : m_width(0),
4262               m_clientArea(clientArea),
4263               m_renderer(renderer),
4264               m_model(model),
4265               m_column(column)
4266         {
4267         }
4268
4269         void UpdateWithWidth(int width)
4270         {
4271             m_width = wxMax(m_width, width);
4272         }
4273
4274         void UpdateWithRow(int row)
4275         {
4276             wxDataViewItem item = m_clientArea->GetItemByRow(row);
4277             m_renderer->PrepareForItem(m_model, item, m_column);
4278             m_width = wxMax(m_width, m_renderer->GetSize().x);
4279         }
4280
4281         int GetMaxWidth() const { return m_width; }
4282
4283     private:
4284         int m_width;
4285         wxDataViewMainWindow *m_clientArea;
4286         wxDataViewRenderer *m_renderer;
4287         const wxDataViewModel *m_model;
4288         unsigned m_column;
4289     };
4290
4291     MaxWidthCalculator calculator(m_clientArea, renderer,
4292                                   GetModel(), column->GetModelColumn());
4293
4294     if ( m_headerArea )
4295     {
4296         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4297         // Labels on native MSW header are indented on both sides
4298         header_width +=
4299             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4300         calculator.UpdateWithWidth(header_width);
4301     }
4302
4303     // The code below deserves some explanation. For very large controls, we
4304     // simply can't afford to calculate sizes for all items, it takes too
4305     // long. So the best we can do is to check the first and the last N/2
4306     // items in the control for some sufficiently large N and calculate best
4307     // sizes from that. That can result in the calculated best width being too
4308     // small for some outliers, but it's better to get slightly imperfect
4309     // result than to wait several seconds after every update. To avoid highly
4310     // visible miscalculations, we also include all currently visible items
4311     // no matter what.  Finally, the value of N is determined dynamically by
4312     // measuring how much time we spent on the determining item widths so far.
4313
4314 #if wxUSE_STOPWATCH
4315     int top_part_end = count;
4316     static const long CALC_TIMEOUT = 20/*ms*/;
4317     // don't call wxStopWatch::Time() too often
4318     static const unsigned CALC_CHECK_FREQ = 100;
4319     wxStopWatch timer;
4320 #else
4321     // use some hard-coded limit, that's the best we can do without timer
4322     int top_part_end = wxMin(500, count);
4323 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4324
4325     int row = 0;
4326
4327     for ( row = 0; row < top_part_end; row++ )
4328     {
4329 #if wxUSE_STOPWATCH
4330         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4331              timer.Time() > CALC_TIMEOUT )
4332             break;
4333 #endif // wxUSE_STOPWATCH
4334         calculator.UpdateWithRow(row);
4335     }
4336
4337     // row is the first unmeasured item now; that's our value of N/2
4338
4339     if ( row < count )
4340     {
4341         top_part_end = row;
4342
4343         // add bottom N/2 items now:
4344         const int bottom_part_start = wxMax(row, count - row);
4345         for ( row = bottom_part_start; row < count; row++ )
4346         {
4347             calculator.UpdateWithRow(row);
4348         }
4349
4350         // finally, include currently visible items in the calculation:
4351         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4352         int first_visible = m_clientArea->GetLineAt(origin.y);
4353         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4354
4355         first_visible = wxMax(first_visible, top_part_end);
4356         last_visible = wxMin(bottom_part_start, last_visible);
4357
4358         for ( row = first_visible; row < last_visible; row++ )
4359         {
4360             calculator.UpdateWithRow(row);
4361         }
4362
4363         wxLogTrace("dataview",
4364                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4365                    top_part_end,
4366                    count - bottom_part_start,
4367                    wxMax(0, last_visible - first_visible),
4368                    count);
4369     }
4370
4371     int max_width = calculator.GetMaxWidth();
4372     if ( max_width > 0 )
4373         max_width += 2 * PADDING_RIGHTLEFT;
4374
4375     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4376     return max_width;
4377 }
4378
4379 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4380                                 unsigned int WXUNUSED(new_pos))
4381 {
4382     // do _not_ reorder m_cols elements here, they should always be in the
4383     // order in which columns were added, we only display the columns in
4384     // different order
4385     m_clientArea->UpdateDisplay();
4386 }
4387
4388 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4389 {
4390     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4391     if (!ret)
4392         return false;
4393
4394     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4395     m_cols.Erase(ret);
4396     OnColumnsCountChanged();
4397
4398     return true;
4399 }
4400
4401 bool wxDataViewCtrl::ClearColumns()
4402 {
4403     m_cols.Clear();
4404     m_colsBestWidths.clear();
4405     OnColumnsCountChanged();
4406     return true;
4407 }
4408
4409 void wxDataViewCtrl::UpdateColBestWidth(int idx)
4410 {
4411     m_colsBestWidths[idx] = 0;
4412
4413     if ( m_headerArea )
4414         m_headerArea->UpdateColumn(idx);
4415 }
4416
4417 void wxDataViewCtrl::UpdateColBestWidths()
4418 {
4419     m_colsBestWidths.clear();
4420     m_colsBestWidths.resize(m_cols.size());
4421
4422     if ( m_headerArea )
4423     {
4424         const unsigned cols = m_headerArea->GetColumnCount();
4425         for ( unsigned i = 0; i < cols; i++ )
4426             m_headerArea->UpdateColumn(i);
4427     }
4428 }
4429
4430 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4431 {
4432 #if 1
4433     unsigned int len = GetColumnCount();
4434     for ( unsigned int i = 0; i < len; i++ )
4435     {
4436         wxDataViewColumn * col = GetColumnAt(i);
4437         if (column==col)
4438             return i;
4439     }
4440
4441     return wxNOT_FOUND;
4442 #else
4443     // This returns the position in pixels which is not what we want.
4444     int ret = 0,
4445         dummy = 0;
4446     unsigned int len = GetColumnCount();
4447     for ( unsigned int i = 0; i < len; i++ )
4448     {
4449         wxDataViewColumn * col = GetColumnAt(i);
4450         if (col->IsHidden())
4451             continue;
4452         ret += col->GetWidth();
4453         if (column==col)
4454         {
4455             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4456             break;
4457         }
4458     }
4459     return ret;
4460 #endif
4461 }
4462
4463 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4464 {
4465     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4466                                             : GetColumn(m_sortingColumnIdx);
4467 }
4468
4469 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4470 {
4471     return GetItemByRow(m_clientArea->GetCurrentRow());
4472 }
4473
4474 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4475 {
4476     const int row = m_clientArea->GetRowByItem(item);
4477
4478     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4479     if ( static_cast<unsigned>(row) != oldCurrent )
4480     {
4481         m_clientArea->ChangeCurrentRow(row);
4482         m_clientArea->RefreshRow(oldCurrent);
4483         m_clientArea->RefreshRow(row);
4484     }
4485 }
4486
4487 int wxDataViewCtrl::GetSelectedItemsCount() const
4488 {
4489     return m_clientArea->GetSelections().size();
4490 }
4491
4492 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4493 {
4494     sel.Empty();
4495     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4496
4497     const size_t len = selections.size();
4498     for ( size_t i = 0; i < len; i++ )
4499     {
4500         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4501         if ( item.IsOk() )
4502         {
4503             sel.Add(item);
4504         }
4505         else
4506         {
4507             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4508         }
4509     }
4510
4511     return sel.size();
4512 }
4513
4514 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4515 {
4516     wxDataViewSelection selection(wxDataViewSelectionCmp);
4517
4518     wxDataViewItem last_parent;
4519
4520     int len = sel.GetCount();
4521     for( int i = 0; i < len; i ++ )
4522     {
4523         wxDataViewItem item = sel[i];
4524         wxDataViewItem parent = GetModel()->GetParent( item );
4525         if (parent)
4526         {
4527             if (parent != last_parent)
4528                 ExpandAncestors(item);
4529         }
4530
4531         last_parent = parent;
4532         int row = m_clientArea->GetRowByItem( item );
4533         if( row >= 0 )
4534             selection.Add( static_cast<unsigned int>(row) );
4535     }
4536
4537     m_clientArea->SetSelections( selection );
4538 }
4539
4540 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4541 {
4542     ExpandAncestors( item );
4543
4544     int row = m_clientArea->GetRowByItem( item );
4545     if( row >= 0 )
4546     {
4547         // Unselect all rows before select another in the single select mode
4548         if (m_clientArea->IsSingleSel())
4549             m_clientArea->SelectAllRows(false);
4550
4551         m_clientArea->SelectRow(row, true);
4552
4553         // Also set focus to the selected item
4554         m_clientArea->ChangeCurrentRow( row );
4555     }
4556 }
4557
4558 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4559 {
4560     int row = m_clientArea->GetRowByItem( item );
4561     if( row >= 0 )
4562         m_clientArea->SelectRow(row, false);
4563 }
4564
4565 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4566 {
4567     int row = m_clientArea->GetRowByItem( item );
4568     if( row >= 0 )
4569     {
4570         return m_clientArea->IsRowSelected(row);
4571     }
4572     return false;
4573 }
4574
4575 void wxDataViewCtrl::SelectAll()
4576 {
4577     m_clientArea->SelectAllRows(true);
4578 }
4579
4580 void wxDataViewCtrl::UnselectAll()
4581 {
4582     m_clientArea->SelectAllRows(false);
4583 }
4584
4585 void wxDataViewCtrl::EnsureVisible( int row, int column )
4586 {
4587     if( row < 0 )
4588         row = 0;
4589     if( row > (int) m_clientArea->GetRowCount() )
4590         row = m_clientArea->GetRowCount();
4591
4592     int first = m_clientArea->GetFirstVisibleRow();
4593     int last = m_clientArea->GetLastVisibleRow();
4594     if( row < first )
4595         m_clientArea->ScrollTo( row, column );
4596     else if( row > last )
4597         m_clientArea->ScrollTo( row - last + first, column );
4598     else
4599         m_clientArea->ScrollTo( first, column );
4600 }
4601
4602 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4603 {
4604     ExpandAncestors( item );
4605
4606     m_clientArea->RecalculateDisplay();
4607
4608     int row = m_clientArea->GetRowByItem(item);
4609     if( row >= 0 )
4610     {
4611         if( column == NULL )
4612             EnsureVisible(row, -1);
4613         else
4614             EnsureVisible( row, GetColumnIndex(column) );
4615     }
4616
4617 }
4618
4619 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4620                               wxDataViewColumn* &column ) const
4621 {
4622     m_clientArea->HitTest(point, item, column);
4623 }
4624
4625 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4626                                     const wxDataViewColumn* column ) const
4627 {
4628     return m_clientArea->GetItemRect(item, column);
4629 }
4630
4631 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4632 {
4633     return m_clientArea->GetItemByRow( row );
4634 }
4635
4636 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4637 {
4638     return m_clientArea->GetRowByItem( item );
4639 }
4640
4641 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4642 {
4643     ExpandAncestors( item );
4644
4645     int row = m_clientArea->GetRowByItem( item );
4646     if (row != -1)
4647         m_clientArea->Expand(row);
4648 }
4649
4650 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4651 {
4652     int row = m_clientArea->GetRowByItem( item );
4653     if (row != -1)
4654         m_clientArea->Collapse(row);
4655 }
4656
4657 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4658 {
4659     int row = m_clientArea->GetRowByItem( item );
4660     if (row != -1)
4661         return m_clientArea->IsExpanded(row);
4662     return false;
4663 }
4664
4665 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4666 {
4667     wxDataViewColumn* col = GetColumn( column );
4668     if (!col)
4669         return;
4670
4671     wxRect itemRect = GetItemRect(item, col);
4672     wxDataViewRenderer* renderer = col->GetRenderer();
4673     if (renderer->GetMode() == wxDATAVIEW_CELL_EDITABLE)
4674         renderer->StartEditing(item, itemRect);
4675 }
4676
4677 #endif // !wxUSE_GENERICDATAVIEWCTRL
4678
4679 #endif // wxUSE_DATAVIEWCTRL