src/generic/datavgen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datavgen.cpp
   3 // Purpose:     wxDataViewCtrl generic implementation
   4 // Author:      Robert Roebling
   5 // Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_DATAVIEWCTRL
  19
  20 #include "wx/dataview.h"
  21
  22 #ifdef wxUSE_GENERICDATAVIEWCTRL
  23
  24 #ifndef WX_PRECOMP
  25     #ifdef __WXMSW__
  26         #include "wx/msw/private.h"
  27         #include "wx/msw/wrapwin.h"
  28         #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  29     #endif
  30     #include "wx/sizer.h"
  31     #include "wx/log.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/timer.h"
  34     #include "wx/settings.h"
  35     #include "wx/msgdlg.h"
  36     #include "wx/dcscreen.h"
  37     #include "wx/frame.h"
  38 #endif
  39
  40 #include "wx/stockitem.h"
  41 #include "wx/calctrl.h"
  42 #include "wx/popupwin.h"
  43 #include "wx/renderer.h"
  44 #include "wx/dcbuffer.h"
  45 #include "wx/icon.h"
  46 #include "wx/list.h"
  47 #include "wx/listimpl.cpp"
  48 #include "wx/imaglist.h"
  49 #include "wx/headerctrl.h"
  50 #include "wx/dnd.h"
  51 #include "wx/stopwatch.h"
  52
  53 //-----------------------------------------------------------------------------
  54 // classes
  55 //-----------------------------------------------------------------------------
  56
  57 class wxDataViewColumn;
  58 class wxDataViewHeaderWindow;
  59 class wxDataViewCtrl;
  60
  61 //-----------------------------------------------------------------------------
  62 // classes
  63 //-----------------------------------------------------------------------------
  64
  65 static const int SCROLL_UNIT_X = 15;
  66
  67 // the cell padding on the left/right
  68 static const int PADDING_RIGHTLEFT = 3;
  69
  70 // the expander space margin
  71 static const int EXPANDER_MARGIN = 4;
  72
  73 #ifdef __WXMSW__
  74 static const int EXPANDER_OFFSET = 4;
  75 #else
  76 static const int EXPANDER_OFFSET = 1;
  77 #endif
  78
  79 // Below is the compare stuff.
  80 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  81 // fast search when needed
  82 static wxDataViewModel* g_model;
  83 static int g_column = -2;
  84 static bool g_asending = true;
  85
  86 //-----------------------------------------------------------------------------
  87 // wxDataViewColumn
  88 //-----------------------------------------------------------------------------
  89
  90 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
  91 {
  92     m_width = width;
  93     m_minWidth = 0;
  94     m_align = align;
  95     m_flags = flags;
  96     m_sort = false;
  97     m_sortAscending = true;
  98 }
  99
 100 int wxDataViewColumn::GetWidth() const
 101 {
 102     switch ( m_width )
 103     {
 104         case wxCOL_WIDTH_DEFAULT:
 105             return wxDVC_DEFAULT_WIDTH;
 106
 107         case wxCOL_WIDTH_AUTOSIZE:
 108             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 109             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 110
 111         default:
 112             return m_width;
 113     }
 114 }
 115
 116 void wxDataViewColumn::UpdateDisplay()
 117 {
 118     if (m_owner)
 119     {
 120         int idx = m_owner->GetColumnIndex( this );
 121         m_owner->OnColumnChange( idx );
 122     }
 123 }
 124
 125 //-----------------------------------------------------------------------------
 126 // wxDataViewHeaderWindow
 127 //-----------------------------------------------------------------------------
 128
 129 class wxDataViewHeaderWindow : public wxHeaderCtrl
 130 {
 131 public:
 132     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 133         : wxHeaderCtrl(parent)
 134     {
 135     }
 136
 137     wxDataViewCtrl *GetOwner() const
 138         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 139
 140 protected:
 141     // implement/override wxHeaderCtrl functions by forwarding them to the main
 142     // control
 143     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 144     {
 145         return *(GetOwner()->GetColumn(idx));
 146     }
 147
 148     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 149     {
 150         wxDataViewCtrl * const owner = GetOwner();
 151
 152         int widthContents = owner->GetBestColumnWidth(idx);
 153         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 154         owner->OnColumnChange(idx);
 155
 156         return true;
 157     }
 158
 159 private:
 160     bool SendEvent(wxEventType type, unsigned int n)
 161     {
 162         wxDataViewCtrl * const owner = GetOwner();
 163         wxDataViewEvent event(type, owner->GetId());
 164
 165         event.SetEventObject(owner);
 166         event.SetColumn(n);
 167         event.SetDataViewColumn(owner->GetColumn(n));
 168         event.SetModel(owner->GetModel());
 169
 170         // for events created by wxDataViewHeaderWindow the
 171         // row / value fields are not valid
 172         return owner->GetEventHandler()->ProcessEvent(event);
 173     }
 174
 175     void OnClick(wxHeaderCtrlEvent& event)
 176     {
 177         const unsigned idx = event.GetColumn();
 178
 179         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 180             return;
 181
 182         // default handling for the column click is to sort by this column or
 183         // toggle its sort order
 184         wxDataViewCtrl * const owner = GetOwner();
 185         wxDataViewColumn * const col = owner->GetColumn(idx);
 186         if ( !col->IsSortable() )
 187         {
 188             // no default handling for non-sortable columns
 189             event.Skip();
 190             return;
 191         }
 192
 193         if ( col->IsSortKey() )
 194         {
 195             // already using this column for sorting, just change the order
 196             col->ToggleSortOrder();
 197         }
 198         else // not using this column for sorting yet
 199         {
 200             // first unset the old sort column if any
 201             int oldSortKey = owner->GetSortingColumnIndex();
 202             if ( oldSortKey != wxNOT_FOUND )
 203             {
 204                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 205                 owner->OnColumnChange(oldSortKey);
 206             }
 207
 208             owner->SetSortingColumnIndex(idx);
 209             col->SetAsSortKey();
 210         }
 211
 212         wxDataViewModel * const model = owner->GetModel();
 213         if ( model )
 214             model->Resort();
 215
 216         owner->OnColumnChange(idx);
 217
 218         SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
 219     }
 220
 221     void OnRClick(wxHeaderCtrlEvent& event)
 222     {
 223         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 224                         event.GetColumn()) )
 225             event.Skip();
 226     }
 227
 228     void OnResize(wxHeaderCtrlEvent& event)
 229     {
 230         wxDataViewCtrl * const owner = GetOwner();
 231
 232         const unsigned col = event.GetColumn();
 233         owner->GetColumn(col)->SetWidth(event.GetWidth());
 234         GetOwner()->OnColumnChange(col);
 235     }
 236
 237     void OnEndReorder(wxHeaderCtrlEvent& event)
 238     {
 239         wxDataViewCtrl * const owner = GetOwner();
 240         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 241                         event.GetNewOrder());
 242     }
 243
 244     DECLARE_EVENT_TABLE()
 245     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 246 };
 247
 248 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 249     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 250     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 251
 252     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 253     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 254
 255     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 256 END_EVENT_TABLE()
 257
 258 //-----------------------------------------------------------------------------
 259 // wxDataViewRenameTimer
 260 //-----------------------------------------------------------------------------
 261
 262 class wxDataViewRenameTimer: public wxTimer
 263 {
 264 private:
 265     wxDataViewMainWindow *m_owner;
 266
 267 public:
 268     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 269     void Notify();
 270 };
 271
 272 //-----------------------------------------------------------------------------
 273 // wxDataViewTreeNode
 274 //-----------------------------------------------------------------------------
 275
 276 class wxDataViewTreeNode;
 277 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 278 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 279
 280 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 281                                            wxDataViewTreeNode ** node2);
 282 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 283
 284 class wxDataViewTreeNode
 285 {
 286 public:
 287     wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
 288     {
 289         m_parent = parent;
 290         if (!parent)
 291             m_open = true;
 292         else
 293             m_open = false;
 294         m_hasChildren = false;
 295         m_subTreeCount  = 0;
 296     }
 297
 298     ~wxDataViewTreeNode()
 299     {
 300     }
 301
 302     wxDataViewTreeNode * GetParent() const { return m_parent; }
 303     void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
 304     wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
 305     wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
 306
 307     void AddNode( wxDataViewTreeNode * node )
 308     {
 309         m_leaves.Add( node->GetItem().GetID() );
 310         if (g_column >= -1)
 311             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 312         m_nodes.Add( node );
 313         if (g_column >= -1)
 314             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 315     }
 316     void AddLeaf( void * leaf )
 317     {
 318         m_leaves.Add( leaf );
 319         if (g_column >= -1)
 320             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 321     }
 322
 323     wxDataViewItem & GetItem() { return m_item; }
 324     const wxDataViewItem & GetItem() const { return m_item; }
 325     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 326
 327     unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
 328     unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
 329     int GetIndentLevel() const
 330     {
 331         int ret = 0;
 332         const wxDataViewTreeNode * node = this;
 333         while( node->GetParent()->GetParent() != NULL )
 334         {
 335             node = node->GetParent();
 336             ret ++;
 337         }
 338         return ret;
 339     }
 340
 341     bool IsOpen() const
 342     {
 343         return m_open;
 344     }
 345
 346     void ToggleOpen()
 347     {
 348         int len = m_nodes.GetCount();
 349         int sum = 0;
 350         for ( int i = 0;i < len; i ++)
 351             sum += m_nodes[i]->GetSubTreeCount();
 352
 353         sum += m_leaves.GetCount();
 354         if (m_open)
 355         {
 356             ChangeSubTreeCount(-sum);
 357             m_open = !m_open;
 358         }
 359         else
 360         {
 361             m_open = !m_open;
 362             ChangeSubTreeCount(sum);
 363         }
 364     }
 365     bool HasChildren() const { return m_hasChildren; }
 366     void SetHasChildren( bool has ){ m_hasChildren = has; }
 367
 368     void SetSubTreeCount( int num ) { m_subTreeCount = num; }
 369     int GetSubTreeCount() const { return m_subTreeCount; }
 370     void ChangeSubTreeCount( int num )
 371     {
 372         if( !m_open )
 373             return;
 374         m_subTreeCount += num;
 375         if( m_parent )
 376             m_parent->ChangeSubTreeCount(num);
 377     }
 378
 379     void Resort()
 380     {
 381         if (g_column >= -1)
 382         {
 383             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 384             int len = m_nodes.GetCount();
 385             for (int i = 0; i < len; i ++)
 386                 m_nodes[i]->Resort();
 387             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 388         }
 389     }
 390
 391     // returns node corresponding to 'item' if its in m_nodes or NULL otherwise
 392     wxDataViewTreeNode *FindItemAsNode(const wxDataViewItem& item) const
 393     {
 394         for ( wxDataViewTreeNodes::const_iterator i = m_nodes.begin();
 395               i != m_nodes.end();
 396               ++i )
 397         {
 398             if( (*i)->GetItem() == item )
 399                 return *i;
 400         }
 401
 402         return NULL;
 403     }
 404
 405
 406 private:
 407     wxDataViewTreeNode  *m_parent;
 408     wxDataViewTreeNodes  m_nodes;
 409     wxDataViewTreeLeaves m_leaves;
 410     wxDataViewItem       m_item;
 411     bool                 m_open;
 412     bool                 m_hasChildren;
 413     int                  m_subTreeCount;
 414 };
 415
 416 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 417                                            wxDataViewTreeNode ** node2)
 418 {
 419     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 420 }
 421
 422 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 423 {
 424     return g_model->Compare( wxDataViewItem(*id1), wxDataViewItem(*id2), g_column, g_asending );
 425 }
 426
 427
 428 //-----------------------------------------------------------------------------
 429 // wxDataViewMainWindow
 430 //-----------------------------------------------------------------------------
 431
 432 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
 433
 434 class wxDataViewMainWindow: public wxWindow
 435 {
 436 public:
 437     wxDataViewMainWindow( wxDataViewCtrl *parent,
 438                             wxWindowID id,
 439                             const wxPoint &pos = wxDefaultPosition,
 440                             const wxSize &size = wxDefaultSize,
 441                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 442     virtual ~wxDataViewMainWindow();
 443
 444     bool IsList() const { return GetOwner()->GetModel()->IsListModel(); }
 445     bool IsVirtualList() const { return m_root == NULL; }
 446
 447     // notifications from wxDataViewModel
 448     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 449     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 450     bool ItemChanged( const wxDataViewItem &item );
 451     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 452     bool Cleared();
 453     void Resort()
 454     {
 455         if (!IsVirtualList())
 456         {
 457             SortPrepare();
 458             m_root->Resort();
 459         }
 460         UpdateDisplay();
 461     }
 462
 463     void SortPrepare()
 464     {
 465         g_model = GetOwner()->GetModel();
 466         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 467         if( !col )
 468         {
 469             if (g_model->HasDefaultCompare())
 470                 g_column = -1;
 471             else
 472                 g_column = -2;
 473
 474             g_asending = true;
 475             return;
 476         }
 477         g_column = col->GetModelColumn();
 478         g_asending = col->IsSortOrderAscending();
 479     }
 480
 481     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 482     wxDataViewCtrl *GetOwner() { return m_owner; }
 483     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 484
 485 #if wxUSE_DRAG_AND_DROP
 486     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 487 #endif // wxUSE_DRAG_AND_DROP
 488     void OnPaint( wxPaintEvent &event );
 489     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 490     void OnChar( wxKeyEvent &event );
 491     void OnMouse( wxMouseEvent &event );
 492     void OnSetFocus( wxFocusEvent &event );
 493     void OnKillFocus( wxFocusEvent &event );
 494
 495     void UpdateDisplay();
 496     void RecalculateDisplay();
 497     void OnInternalIdle();
 498
 499     void OnRenameTimer();
 500
 501     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 502     void ScrollTo( int rows, int column );
 503
 504     unsigned GetCurrentRow() const { return m_currentRow; }
 505     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 506     void ChangeCurrentRow( unsigned int row );
 507
 508     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 509     bool IsEmpty() { return GetRowCount() == 0; }
 510
 511     int GetCountPerPage() const;
 512     int GetEndOfLastCol() const;
 513     unsigned int GetFirstVisibleRow() const;
 514
 515     // I change this method to un const because in the tree view,
 516     // the displaying number of the tree are changing along with the
 517     // expanding/collapsing of the tree nodes
 518     unsigned int GetLastVisibleRow();
 519     unsigned int GetRowCount();
 520
 521     wxDataViewItem GetSelection() const;
 522     const wxDataViewSelection& GetSelections() const { return m_selection; }
 523     void SetSelections( const wxDataViewSelection & sel )
 524         { m_selection = sel; UpdateDisplay(); }
 525     void Select( const wxArrayInt& aSelections );
 526     void SelectAllRows( bool on );
 527     void SelectRow( unsigned int row, bool on );
 528     void SelectRows( unsigned int from, unsigned int to, bool on );
 529     void ReverseRowSelection( unsigned int row );
 530     bool IsRowSelected( unsigned int row );
 531     void SendSelectionChangedEvent( const wxDataViewItem& item);
 532
 533     void RefreshRow( unsigned int row );
 534     void RefreshRows( unsigned int from, unsigned int to );
 535     void RefreshRowsAfter( unsigned int firstRow );
 536
 537     // returns the colour to be used for drawing the rules
 538     wxColour GetRuleColour() const
 539     {
 540         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 541     }
 542
 543     wxRect GetLineRect( unsigned int row ) const;
 544
 545     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 546     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 547     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 548
 549     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 550
 551     // Some useful functions for row and item mapping
 552     wxDataViewItem GetItemByRow( unsigned int row ) const;
 553     int GetRowByItem( const wxDataViewItem & item ) const;
 554
 555     // Methods for building the mapping tree
 556     void BuildTree( wxDataViewModel  * model );
 557     void DestroyTree();
 558     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 559     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 560
 561     void Expand( unsigned int row );
 562     void Collapse( unsigned int row );
 563     bool IsExpanded( unsigned int row ) const;
 564     bool HasChildren( unsigned int row ) const;
 565
 566 #if wxUSE_DRAG_AND_DROP
 567     bool EnableDragSource( const wxDataFormat &format );
 568     bool EnableDropTarget( const wxDataFormat &format );
 569
 570     void RemoveDropHint();
 571     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 572     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 573     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 574     void OnLeave();
 575 #endif // wxUSE_DRAG_AND_DROP
 576
 577 private:
 578     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 579     // We did not need this temporarily
 580     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 581
 582     int RecalculateCount();
 583
 584     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 585
 586     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 587
 588 private:
 589     wxDataViewCtrl             *m_owner;
 590     int                         m_lineHeight;
 591     bool                        m_dirty;
 592
 593     wxDataViewColumn           *m_currentCol;
 594     unsigned int                m_currentRow;
 595     wxDataViewSelection         m_selection;
 596
 597     wxDataViewRenameTimer      *m_renameTimer;
 598     bool                        m_lastOnSame;
 599
 600     bool                        m_hasFocus;
 601
 602 #if wxUSE_DRAG_AND_DROP
 603     int                         m_dragCount;
 604     wxPoint                     m_dragStart;
 605
 606     bool                        m_dragEnabled;
 607     wxDataFormat                m_dragFormat;
 608
 609     bool                        m_dropEnabled;
 610     wxDataFormat                m_dropFormat;
 611     bool                        m_dropHint;
 612     unsigned int                m_dropHintLine;
 613 #endif // wxUSE_DRAG_AND_DROP
 614
 615     // for double click logic
 616     unsigned int m_lineLastClicked,
 617         m_lineBeforeLastClicked,
 618         m_lineSelectSingleOnUp;
 619
 620     // the pen used to draw horiz/vertical rules
 621     wxPen m_penRule;
 622
 623     // the pen used to draw the expander and the lines
 624     wxPen m_penExpander;
 625
 626     // This is the tree structure of the model
 627     wxDataViewTreeNode * m_root;
 628     int m_count;
 629
 630     // This is the tree node under the cursor
 631     wxDataViewTreeNode * m_underMouse;
 632
 633 private:
 634     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 635     DECLARE_EVENT_TABLE()
 636 };
 637
 638 // ---------------------------------------------------------
 639 // wxGenericDataViewModelNotifier
 640 // ---------------------------------------------------------
 641
 642 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 643 {
 644 public:
 645     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 646         { m_mainWindow = mainWindow; }
 647
 648     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 649         { return m_mainWindow->ItemAdded( parent , item ); }
 650     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 651         { return m_mainWindow->ItemDeleted( parent, item ); }
 652     virtual bool ItemChanged( const wxDataViewItem & item )
 653         { return m_mainWindow->ItemChanged(item);  }
 654     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 655         { return m_mainWindow->ValueChanged( item, col ); }
 656     virtual bool Cleared()
 657         { return m_mainWindow->Cleared(); }
 658     virtual void Resort()
 659         { m_mainWindow->Resort(); }
 660
 661     wxDataViewMainWindow    *m_mainWindow;
 662 };
 663
 664 // ---------------------------------------------------------
 665 // wxDataViewRenderer
 666 // ---------------------------------------------------------
 667
 668 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 669
 670 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 671                                         wxDataViewCellMode mode,
 672                                         int align) :
 673     wxDataViewCustomRendererBase( varianttype, mode, align )
 674 {
 675     m_align = align;
 676     m_mode = mode;
 677     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 678     m_dc = NULL;
 679 }
 680
 681 wxDataViewRenderer::~wxDataViewRenderer()
 682 {
 683     delete m_dc;
 684 }
 685
 686 wxDC *wxDataViewRenderer::GetDC()
 687 {
 688     if (m_dc == NULL)
 689     {
 690         if (GetOwner() == NULL)
 691             return NULL;
 692         if (GetOwner()->GetOwner() == NULL)
 693             return NULL;
 694         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 695     }
 696
 697     return m_dc;
 698 }
 699
 700 void wxDataViewRenderer::SetAlignment( int align )
 701 {
 702     m_align=align;
 703 }
 704
 705 int wxDataViewRenderer::GetAlignment() const
 706 {
 707     return m_align;
 708 }
 709
 710 // ---------------------------------------------------------
 711 // wxDataViewCustomRenderer
 712 // ---------------------------------------------------------
 713
 714 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 715
 716 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 717                         wxDataViewCellMode mode, int align ) :
 718     wxDataViewRenderer( varianttype, mode, align )
 719 {
 720 }
 721
 722 // ---------------------------------------------------------
 723 // wxDataViewTextRenderer
 724 // ---------------------------------------------------------
 725
 726 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 727
 728 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 729                                                 wxDataViewCellMode mode, int align ) :
 730     wxDataViewRenderer( varianttype, mode, align )
 731 {
 732 }
 733
 734 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 735 {
 736     m_text = value.GetString();
 737
 738     return true;
 739 }
 740
 741 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 742 {
 743     return false;
 744 }
 745
 746 bool wxDataViewTextRenderer::HasEditorCtrl() const
 747 {
 748     return true;
 749 }
 750
 751 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 752         wxRect labelRect, const wxVariant &value )
 753 {
 754     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 755                                        wxPoint(labelRect.x,labelRect.y),
 756                                        wxSize(labelRect.width,labelRect.height) );
 757
 758     // select the text in the control an place the cursor at the end
 759     ctrl->SetInsertionPointEnd();
 760     ctrl->SelectAll();
 761
 762     return ctrl;
 763 }
 764
 765 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 766 {
 767     wxTextCtrl *text = (wxTextCtrl*) editor;
 768     value = text->GetValue();
 769     return true;
 770 }
 771
 772 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 773 {
 774     RenderText(m_text, 0, rect, dc, state);
 775     return true;
 776 }
 777
 778 wxSize wxDataViewTextRenderer::GetSize() const
 779 {
 780     if (!m_text.empty())
 781         return GetTextExtent(m_text);
 782     else
 783         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 784 }
 785
 786 // ---------------------------------------------------------
 787 // wxDataViewBitmapRenderer
 788 // ---------------------------------------------------------
 789
 790 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 791
 792 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 793                                                     wxDataViewCellMode mode, int align ) :
 794     wxDataViewRenderer( varianttype, mode, align )
 795 {
 796 }
 797
 798 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 799 {
 800     if (value.GetType() == wxT("wxBitmap"))
 801         m_bitmap << value;
 802     if (value.GetType() == wxT("wxIcon"))
 803         m_icon << value;
 804
 805     return true;
 806 }
 807
 808 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 809 {
 810     return false;
 811 }
 812
 813 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 814 {
 815     if (m_bitmap.IsOk())
 816         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 817     else if (m_icon.IsOk())
 818         dc->DrawIcon( m_icon, cell.x, cell.y );
 819
 820     return true;
 821 }
 822
 823 wxSize wxDataViewBitmapRenderer::GetSize() const
 824 {
 825     if (m_bitmap.IsOk())
 826         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 827     else if (m_icon.IsOk())
 828         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 829
 830     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 831 }
 832
 833 // ---------------------------------------------------------
 834 // wxDataViewToggleRenderer
 835 // ---------------------------------------------------------
 836
 837 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 838
 839 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 840                         wxDataViewCellMode mode, int align ) :
 841     wxDataViewRenderer( varianttype, mode, align )
 842 {
 843     m_toggle = false;
 844 }
 845
 846 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 847 {
 848     m_toggle = value.GetBool();
 849
 850     return true;
 851 }
 852
 853 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 854 {
 855     return false;
 856 }
 857
 858 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 859 {
 860     int flags = 0;
 861     if (m_toggle)
 862         flags |= wxCONTROL_CHECKED;
 863     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
 864         GetEnabled() == false)
 865         flags |= wxCONTROL_DISABLED;
 866
 867     // check boxes we draw must always have the same, standard size (if it's
 868     // bigger than the cell size the checkbox will be truncated because the
 869     // caller had set the clipping rectangle to prevent us from drawing outside
 870     // the cell)
 871     cell.SetSize(GetSize());
 872
 873     wxRendererNative::Get().DrawCheckBox(
 874             GetOwner()->GetOwner(),
 875             *dc,
 876             cell,
 877             flags );
 878
 879     return true;
 880 }
 881
 882 bool wxDataViewToggleRenderer::WXOnLeftClick(const wxPoint& cursor,
 883                                              const wxRect& WXUNUSED(cell),
 884                                              wxDataViewModel *model,
 885                                              const wxDataViewItem& item,
 886                                              unsigned int col)
 887 {
 888     // only react to clicks directly on the checkbox, not elsewhere in the same cell:
 889     if (!wxRect(GetSize()).Contains(cursor))
 890         return false;
 891
 892     if (model->IsEnabled(item, col))
 893     {
 894         model->ChangeValue(!m_toggle, item, col);
 895         return true;
 896     }
 897
 898     return false;
 899 }
 900
 901 wxSize wxDataViewToggleRenderer::GetSize() const
 902 {
 903     // the window parameter is not used by GetCheckBoxSize() so it's
 904     // safe to pass NULL
 905     return wxRendererNative::Get().GetCheckBoxSize(NULL);
 906 }
 907
 908 // ---------------------------------------------------------
 909 // wxDataViewProgressRenderer
 910 // ---------------------------------------------------------
 911
 912 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
 913
 914 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 915     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 916     wxDataViewRenderer( varianttype, mode, align )
 917 {
 918     m_label = label;
 919     m_value = 0;
 920 }
 921
 922 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 923 {
 924     m_value = (long) value;
 925
 926     if (m_value < 0) m_value = 0;
 927     if (m_value > 100) m_value = 100;
 928
 929     return true;
 930 }
 931
 932 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 933 {
 934     value = (long) m_value;
 935     return true;
 936 }
 937
 938 bool
 939 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
 940 {
 941     // deflate the rect to leave a small border between bars in adjacent rows
 942     wxRect bar = rect.Deflate(0, 1);
 943
 944     dc->SetBrush( *wxTRANSPARENT_BRUSH );
 945     dc->SetPen( *wxBLACK_PEN );
 946     dc->DrawRectangle( bar );
 947
 948     bar.width = (int)(bar.width * m_value / 100.);
 949     dc->SetPen( *wxTRANSPARENT_PEN );
 950
 951     const wxDataViewItemAttr& attr = GetAttr();
 952     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
 953                                   : *wxBLUE_BRUSH );
 954     dc->DrawRectangle( bar );
 955
 956     return true;
 957 }
 958
 959 wxSize wxDataViewProgressRenderer::GetSize() const
 960 {
 961     return wxSize(40,12);
 962 }
 963
 964 // ---------------------------------------------------------
 965 // wxDataViewDateRenderer
 966 // ---------------------------------------------------------
 967
 968 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
 969
 970 #if wxUSE_DATE_RENDERER_POPUP
 971
 972 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 973 {
 974 public:
 975     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
 976         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
 977         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
 978         m_item( item )
 979     {
 980         m_model = model;
 981         m_col = col;
 982         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
 983         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
 984         sizer->Add( m_cal, 1, wxGROW );
 985         SetSizer( sizer );
 986         sizer->Fit( this );
 987     }
 988
 989     void OnCalendar( wxCalendarEvent &event );
 990
 991     wxCalendarCtrl      *m_cal;
 992     wxDataViewModel *m_model;
 993     unsigned int               m_col;
 994     const wxDataViewItem &   m_item;
 995
 996 protected:
 997     virtual void OnDismiss()
 998     {
 999     }
1000
1001 private:
1002     DECLARE_EVENT_TABLE()
1003 };
1004
1005 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
1006     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
1007 END_EVENT_TABLE()
1008
1009 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
1010 {
1011     m_model->ChangeValue( event.GetDate(), m_item, m_col );
1012     DismissAndNotify();
1013 }
1014
1015 #endif // wxUSE_DATE_RENDERER_POPUP
1016
1017 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewRenderer)
1018
1019 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
1020                         wxDataViewCellMode mode, int align ) :
1021     wxDataViewRenderer( varianttype, mode, align )
1022 {
1023 }
1024
1025 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
1026 {
1027     m_date = value.GetDateTime();
1028
1029     return true;
1030 }
1031
1032 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
1033 {
1034     value = m_date;
1035     return true;
1036 }
1037
1038 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
1039 {
1040     wxString tmp = m_date.FormatDate();
1041     RenderText( tmp, 0, cell, dc, state );
1042     return true;
1043 }
1044
1045 wxSize wxDataViewDateRenderer::GetSize() const
1046 {
1047     return GetTextExtent(m_date.FormatDate());
1048 }
1049
1050 bool wxDataViewDateRenderer::WXOnActivate(const wxRect& WXUNUSED(cell),
1051                                           wxDataViewModel *model,
1052                                           const wxDataViewItem& item,
1053                                           unsigned int col)
1054 {
1055     wxDateTime dtOld = m_date;
1056
1057 #if wxUSE_DATE_RENDERER_POPUP
1058     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
1059         GetOwner()->GetOwner()->GetParent(), &dtOld, model, item, col);
1060     wxPoint pos = wxGetMousePosition();
1061     popup->Move( pos );
1062     popup->Layout();
1063     popup->Popup( popup->m_cal );
1064 #else // !wxUSE_DATE_RENDERER_POPUP
1065     wxMessageBox(dtOld.Format());
1066 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
1067
1068     return true;
1069 }
1070
1071 // ---------------------------------------------------------
1072 // wxDataViewIconTextRenderer
1073 // ---------------------------------------------------------
1074
1075 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1076
1077 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1078 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1079     wxDataViewRenderer( varianttype, mode, align )
1080 {
1081     SetMode(mode);
1082     SetAlignment(align);
1083 }
1084
1085 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1086 {
1087     m_value << value;
1088     return true;
1089 }
1090
1091 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1092 {
1093     return false;
1094 }
1095
1096 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1097 {
1098     int xoffset = 0;
1099
1100     const wxIcon& icon = m_value.GetIcon();
1101     if ( icon.IsOk() )
1102     {
1103         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1104         xoffset = icon.GetWidth()+4;
1105     }
1106
1107     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1108
1109     return true;
1110 }
1111
1112 wxSize wxDataViewIconTextRenderer::GetSize() const
1113 {
1114     if (!m_value.GetText().empty())
1115     {
1116         wxSize size = GetTextExtent(m_value.GetText());
1117
1118         if (m_value.GetIcon().IsOk())
1119             size.x += m_value.GetIcon().GetWidth() + 4;
1120         return size;
1121     }
1122     return wxSize(80,20);
1123 }
1124
1125 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1126 {
1127     wxDataViewIconText iconText;
1128     iconText << value;
1129
1130     wxString text = iconText.GetText();
1131
1132     // adjust the label rect to take the width of the icon into account
1133     if (iconText.GetIcon().IsOk())
1134     {
1135         int w = iconText.GetIcon().GetWidth() + 4;
1136         labelRect.x += w;
1137         labelRect.width -= w;
1138     }
1139
1140     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1141                                        wxPoint(labelRect.x,labelRect.y),
1142                                        wxSize(labelRect.width,labelRect.height) );
1143
1144     // select the text in the control an place the cursor at the end
1145     ctrl->SetInsertionPointEnd();
1146     ctrl->SelectAll();
1147
1148     return ctrl;
1149 }
1150
1151 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1152 {
1153     wxTextCtrl *text = (wxTextCtrl*) editor;
1154
1155     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1156     value << iconText;
1157     return true;
1158 }
1159
1160 //-----------------------------------------------------------------------------
1161 // wxDataViewDropTarget
1162 //-----------------------------------------------------------------------------
1163
1164 #if wxUSE_DRAG_AND_DROP
1165
1166 class wxBitmapCanvas: public wxWindow
1167 {
1168 public:
1169     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1170     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1171     {
1172         m_bitmap = bitmap;
1173         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1174     }
1175
1176     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1177     {
1178         wxPaintDC dc(this);
1179         dc.DrawBitmap( m_bitmap, 0, 0);
1180     }
1181
1182     wxBitmap m_bitmap;
1183 };
1184
1185 class wxDataViewDropSource: public wxDropSource
1186 {
1187 public:
1188     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1189         wxDropSource( win )
1190     {
1191         m_win = win;
1192         m_row = row;
1193         m_hint = NULL;
1194     }
1195
1196     ~wxDataViewDropSource()
1197     {
1198         delete m_hint;
1199     }
1200
1201     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1202     {
1203         wxPoint pos = wxGetMousePosition();
1204
1205         if (!m_hint)
1206         {
1207             int liney = m_win->GetLineStart( m_row );
1208             int linex = 0;
1209             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1210             m_win->ClientToScreen( &linex, &liney );
1211             m_dist_x = pos.x - linex;
1212             m_dist_y = pos.y - liney;
1213
1214             int indent = 0;
1215             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1216             m_dist_x -= indent;
1217             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1218                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1219                                         ib.GetSize(),
1220                                         wxFRAME_TOOL_WINDOW |
1221                                         wxFRAME_FLOAT_ON_PARENT |
1222                                         wxFRAME_NO_TASKBAR |
1223                                         wxNO_BORDER );
1224             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1225             m_hint->Show();
1226         }
1227         else
1228         {
1229             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1230             m_hint->SetTransparent( 128 );
1231         }
1232
1233         return false;
1234     }
1235
1236     wxDataViewMainWindow   *m_win;
1237     unsigned int            m_row;
1238     wxFrame                *m_hint;
1239     int m_dist_x,m_dist_y;
1240 };
1241
1242
1243 class wxDataViewDropTarget: public wxDropTarget
1244 {
1245 public:
1246     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1247         wxDropTarget( obj )
1248     {
1249         m_win = win;
1250     }
1251
1252     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1253     {
1254         wxDataFormat format = GetMatchingPair();
1255         if (format == wxDF_INVALID)
1256             return wxDragNone;
1257         return m_win->OnDragOver( format, x, y, def);
1258     }
1259
1260     virtual bool OnDrop( wxCoord x, wxCoord y )
1261     {
1262         wxDataFormat format = GetMatchingPair();
1263         if (format == wxDF_INVALID)
1264             return false;
1265         return m_win->OnDrop( format, x, y );
1266     }
1267
1268     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1269     {
1270         wxDataFormat format = GetMatchingPair();
1271         if (format == wxDF_INVALID)
1272             return wxDragNone;
1273         if (!GetData())
1274             return wxDragNone;
1275         return m_win->OnData( format, x, y, def );
1276     }
1277
1278     virtual void OnLeave()
1279         { m_win->OnLeave(); }
1280
1281     wxDataViewMainWindow   *m_win;
1282 };
1283
1284 #endif // wxUSE_DRAG_AND_DROP
1285
1286 //-----------------------------------------------------------------------------
1287 // wxDataViewRenameTimer
1288 //-----------------------------------------------------------------------------
1289
1290 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1291 {
1292     m_owner = owner;
1293 }
1294
1295 void wxDataViewRenameTimer::Notify()
1296 {
1297     m_owner->OnRenameTimer();
1298 }
1299
1300 //-----------------------------------------------------------------------------
1301 // wxDataViewMainWindow
1302 //-----------------------------------------------------------------------------
1303
1304 // The tree building helper, declared firstly
1305 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1306                              wxDataViewTreeNode * node);
1307
1308 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1309 {
1310     if (row1 > row2) return 1;
1311     if (row1 == row2) return 0;
1312     return -1;
1313 }
1314
1315 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1316
1317 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1318     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1319     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1320     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1321     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1322     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1323 END_EVENT_TABLE()
1324
1325 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1326     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1327     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1328     m_selection( wxDataViewSelectionCmp )
1329
1330 {
1331     SetOwner( parent );
1332
1333     m_lastOnSame = false;
1334     m_renameTimer = new wxDataViewRenameTimer( this );
1335
1336     // TODO: user better initial values/nothing selected
1337     m_currentCol = NULL;
1338     m_currentRow = 0;
1339
1340     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1341
1342 #if wxUSE_DRAG_AND_DROP
1343     m_dragCount = 0;
1344     m_dragStart = wxPoint(0,0);
1345
1346     m_dragEnabled = false;
1347     m_dropEnabled = false;
1348     m_dropHint = false;
1349     m_dropHintLine = (unsigned int) -1;
1350 #endif // wxUSE_DRAG_AND_DROP
1351
1352     m_lineLastClicked = (unsigned int) -1;
1353     m_lineBeforeLastClicked = (unsigned int) -1;
1354     m_lineSelectSingleOnUp = (unsigned int) -1;
1355
1356     m_hasFocus = false;
1357
1358     SetBackgroundColour( *wxWHITE );
1359
1360     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1361
1362     m_penRule = wxPen(GetRuleColour());
1363
1364     // compose a pen whichcan draw black lines
1365     // TODO: maybe there is something system colour to use
1366     m_penExpander = wxPen(wxColour(0,0,0));
1367
1368     m_root = new wxDataViewTreeNode( NULL );
1369     m_root->SetHasChildren(true);
1370
1371     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1372     m_count = -1;
1373     m_underMouse = NULL;
1374     UpdateDisplay();
1375 }
1376
1377 wxDataViewMainWindow::~wxDataViewMainWindow()
1378 {
1379     DestroyTree();
1380     delete m_renameTimer;
1381 }
1382
1383
1384 #if wxUSE_DRAG_AND_DROP
1385 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1386 {
1387     m_dragFormat = format;
1388     m_dragEnabled = format != wxDF_INVALID;
1389
1390     return true;
1391 }
1392
1393 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1394 {
1395     m_dropFormat = format;
1396     m_dropEnabled = format != wxDF_INVALID;
1397
1398     if (m_dropEnabled)
1399         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1400
1401     return true;
1402 }
1403
1404 void wxDataViewMainWindow::RemoveDropHint()
1405 {
1406     if (m_dropHint)
1407     {
1408             m_dropHint = false;
1409             RefreshRow( m_dropHintLine );
1410             m_dropHintLine = (unsigned int) -1;
1411     }
1412 }
1413
1414 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1415                                                wxCoord y, wxDragResult def )
1416 {
1417     int xx = x;
1418     int yy = y;
1419     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1420     unsigned int row = GetLineAt( yy );
1421
1422     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1423     {
1424         RemoveDropHint();
1425         return wxDragNone;
1426     }
1427
1428     wxDataViewItem item = GetItemByRow( row );
1429
1430     wxDataViewModel *model = GetOwner()->GetModel();
1431
1432     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1433     event.SetEventObject( m_owner );
1434     event.SetItem( item );
1435     event.SetModel( model );
1436     event.SetDataFormat( format );
1437     if (!m_owner->HandleWindowEvent( event ))
1438     {
1439         RemoveDropHint();
1440         return wxDragNone;
1441     }
1442
1443     if (!event.IsAllowed())
1444     {
1445         RemoveDropHint();
1446         return wxDragNone;
1447     }
1448
1449
1450     if (m_dropHint && (row != m_dropHintLine))
1451         RefreshRow( m_dropHintLine );
1452     m_dropHint = true;
1453     m_dropHintLine = row;
1454     RefreshRow( row );
1455
1456     return def;
1457 }
1458
1459 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1460 {
1461     RemoveDropHint();
1462
1463     int xx = x;
1464     int yy = y;
1465     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1466     unsigned int row = GetLineAt( yy );
1467
1468     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1469         return false;
1470
1471     wxDataViewItem item = GetItemByRow( row );
1472
1473     wxDataViewModel *model = GetOwner()->GetModel();
1474
1475     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1476     event.SetEventObject( m_owner );
1477     event.SetItem( item );
1478     event.SetModel( model );
1479     event.SetDataFormat( format );
1480     if (!m_owner->HandleWindowEvent( event ))
1481         return false;
1482
1483     if (!event.IsAllowed())
1484         return false;
1485
1486     return true;
1487 }
1488
1489 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1490                                            wxDragResult def )
1491 {
1492     int xx = x;
1493     int yy = y;
1494     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1495     unsigned int row = GetLineAt( yy );
1496
1497     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1498         return wxDragNone;
1499
1500     wxDataViewItem item = GetItemByRow( row );
1501
1502     wxDataViewModel *model = GetOwner()->GetModel();
1503
1504     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1505
1506     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1507     event.SetEventObject( m_owner );
1508     event.SetItem( item );
1509     event.SetModel( model );
1510     event.SetDataFormat( format );
1511     event.SetDataSize( obj->GetSize() );
1512     event.SetDataBuffer( obj->GetData() );
1513     if (!m_owner->HandleWindowEvent( event ))
1514         return wxDragNone;
1515
1516     if (!event.IsAllowed())
1517         return wxDragNone;
1518
1519     return def;
1520 }
1521
1522 void wxDataViewMainWindow::OnLeave()
1523 {
1524     RemoveDropHint();
1525 }
1526
1527 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1528 {
1529     int height = GetLineHeight( row );
1530     int width = 0;
1531     unsigned int cols = GetOwner()->GetColumnCount();
1532     unsigned int col;
1533     for (col = 0; col < cols; col++)
1534     {
1535         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1536         if (column->IsHidden())
1537             continue;      // skip it!
1538         width += column->GetWidth();
1539     }
1540
1541     indent = 0;
1542     if (!IsList())
1543     {
1544         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1545         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1546         indent = indent + m_lineHeight;
1547             // try to use the m_lineHeight as the expander space
1548
1549         if(!node->HasChildren())
1550             delete node;
1551     }
1552     width -= indent;
1553
1554     wxBitmap bitmap( width, height );
1555     wxMemoryDC dc( bitmap );
1556     dc.SetFont( GetFont() );
1557     dc.SetPen( *wxBLACK_PEN );
1558     dc.SetBrush( *wxWHITE_BRUSH );
1559     dc.DrawRectangle( 0,0,width,height );
1560
1561     wxDataViewModel *model = m_owner->GetModel();
1562
1563     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1564     if (!expander)
1565     {
1566         // TODO-RTL: last column for RTL support
1567         expander = GetOwner()->GetColumnAt( 0 );
1568         GetOwner()->SetExpanderColumn(expander);
1569     }
1570
1571
1572     int x = 0;
1573     for (col = 0; col < cols; col++)
1574     {
1575         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1576         wxDataViewRenderer *cell = column->GetRenderer();
1577
1578         if (column->IsHidden())
1579             continue;       // skip it!
1580
1581         width = column->GetWidth();
1582
1583         if (column == expander)
1584             width -= indent;
1585
1586         wxDataViewItem item = GetItemByRow( row );
1587         cell->PrepareForItem(model, item, column->GetModelColumn());
1588
1589         wxRect item_rect(x, 0, width, height);
1590         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1591
1592         // dc.SetClippingRegion( item_rect );
1593         cell->WXCallRender(item_rect, &dc, 0);
1594         // dc.DestroyClippingRegion();
1595
1596         x += width;
1597     }
1598
1599     return bitmap;
1600 }
1601
1602 #endif // wxUSE_DRAG_AND_DROP
1603
1604
1605 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1606 {
1607     wxDataViewModel *model = GetOwner()->GetModel();
1608     wxAutoBufferedPaintDC dc( this );
1609
1610 #ifdef __WXMSW__
1611     dc.SetBrush(GetOwner()->GetBackgroundColour());
1612     dc.SetPen( *wxTRANSPARENT_PEN );
1613     dc.DrawRectangle(GetClientSize());
1614 #endif
1615
1616     if ( IsEmpty() )
1617     {
1618         // No items to draw.
1619         return;
1620     }
1621
1622     // prepare the DC
1623     GetOwner()->PrepareDC( dc );
1624     dc.SetFont( GetFont() );
1625
1626     wxRect update = GetUpdateRegion().GetBox();
1627     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1628
1629     // compute which items needs to be redrawn
1630     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1631     unsigned int item_count =
1632         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1633             (int)(GetRowCount( ) - item_start));
1634     unsigned int item_last = item_start + item_count;
1635
1636     // Send the event to wxDataViewCtrl itself.
1637     wxWindow * const parent = GetParent();
1638     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1639     cache_event.SetEventObject(parent);
1640     cache_event.SetCache(item_start, item_last - 1);
1641     parent->ProcessWindowEvent(cache_event);
1642
1643     // compute which columns needs to be redrawn
1644     unsigned int cols = GetOwner()->GetColumnCount();
1645     if ( !cols )
1646     {
1647         // we assume that we have at least one column below and painting an
1648         // empty control is unnecessary anyhow
1649         return;
1650     }
1651
1652     unsigned int col_start = 0;
1653     unsigned int x_start;
1654     for (x_start = 0; col_start < cols; col_start++)
1655     {
1656         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1657         if (col->IsHidden())
1658             continue;      // skip it!
1659
1660         unsigned int w = col->GetWidth();
1661         if (x_start+w >= (unsigned int)update.x)
1662             break;
1663
1664         x_start += w;
1665     }
1666
1667     unsigned int col_last = col_start;
1668     unsigned int x_last = x_start;
1669     for (; col_last < cols; col_last++)
1670     {
1671         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1672         if (col->IsHidden())
1673             continue;      // skip it!
1674
1675         if (x_last > (unsigned int)update.GetRight())
1676             break;
1677
1678         x_last += col->GetWidth();
1679     }
1680
1681     // Draw horizontal rules if required
1682     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1683     {
1684         dc.SetPen(m_penRule);
1685         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1686
1687         for (unsigned int i = item_start; i <= item_last; i++)
1688         {
1689             int y = GetLineStart( i );
1690             dc.DrawLine(x_start, y, x_last, y);
1691         }
1692     }
1693
1694     // Draw vertical rules if required
1695     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1696     {
1697         dc.SetPen(m_penRule);
1698         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1699
1700         // NB: Vertical rules are drawn in the last pixel of a column so that
1701         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1702         //     consistency with MSW native list control. There's no vertical
1703         //     rule at the most-left side of the control.
1704
1705         int x = x_start - 1;
1706         for (unsigned int i = col_start; i < col_last; i++)
1707         {
1708             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1709             if (col->IsHidden())
1710                 continue;       // skip it
1711
1712             x += col->GetWidth();
1713
1714             dc.DrawLine(x, GetLineStart( item_start ),
1715                         x, GetLineStart( item_last ) );
1716         }
1717     }
1718
1719     // redraw the background for the items which are selected/current
1720     for (unsigned int item = item_start; item < item_last; item++)
1721     {
1722         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1723         if (selected || item == m_currentRow)
1724         {
1725             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1726             if (item == m_currentRow)
1727                 flags |= wxCONTROL_CURRENT;
1728             if (m_hasFocus)
1729                 flags |= wxCONTROL_FOCUSED;
1730
1731             wxRect rect( x_start, GetLineStart( item ),
1732                          x_last - x_start, GetLineHeight( item ) );
1733             wxRendererNative::Get().DrawItemSelectionRect
1734                                 (
1735                                     this,
1736                                     dc,
1737                                     rect,
1738                                     flags
1739                                 );
1740         }
1741     }
1742
1743 #if wxUSE_DRAG_AND_DROP
1744     if (m_dropHint)
1745     {
1746         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1747                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1748         dc.SetPen( *wxBLACK_PEN );
1749         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1750         dc.DrawRectangle( rect );
1751     }
1752 #endif // wxUSE_DRAG_AND_DROP
1753
1754     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1755     if (!expander)
1756     {
1757         // TODO-RTL: last column for RTL support
1758         expander = GetOwner()->GetColumnAt( 0 );
1759         GetOwner()->SetExpanderColumn(expander);
1760     }
1761
1762     // redraw all cells for all rows which must be repainted and all columns
1763     wxRect cell_rect;
1764     cell_rect.x = x_start;
1765     for (unsigned int i = col_start; i < col_last; i++)
1766     {
1767         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1768         wxDataViewRenderer *cell = col->GetRenderer();
1769         cell_rect.width = col->GetWidth();
1770
1771         if ( col->IsHidden() || cell_rect.width <= 0 )
1772             continue;       // skip it!
1773
1774         for (unsigned int item = item_start; item < item_last; item++)
1775         {
1776             // get the cell value and set it into the renderer
1777             wxDataViewTreeNode *node = NULL;
1778             wxDataViewItem dataitem;
1779
1780             if (!IsVirtualList())
1781             {
1782                 node = GetTreeNodeByRow(item);
1783                 if( node == NULL )
1784                     continue;
1785
1786                 dataitem = node->GetItem();
1787
1788                 // Skip all columns of "container" rows except the expander
1789                 // column itself unless HasContainerColumns() overrides this.
1790                 if ( col != GetOwner()->GetExpanderColumn() &&
1791                         model->IsContainer(dataitem) &&
1792                             !model->HasContainerColumns(dataitem) )
1793                     continue;
1794             }
1795             else
1796             {
1797                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1798             }
1799
1800             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1801
1802             // update cell_rect
1803             cell_rect.y = GetLineStart( item );
1804             cell_rect.height = GetLineHeight( item );
1805
1806             // deal with the expander
1807             int indent = 0;
1808             if ((!IsList()) && (col == expander))
1809             {
1810                 // Calculate the indent first
1811                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1812
1813                 // we reserve m_lineHeight of horizontal space for the expander
1814                 // but leave EXPANDER_MARGIN around the expander itself
1815                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1816
1817                 indent += m_lineHeight;
1818
1819                 // draw expander if needed and visible
1820                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1821                 {
1822                     dc.SetPen( m_penExpander );
1823                     dc.SetBrush( wxNullBrush );
1824
1825                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1826                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1827                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1828
1829                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1830
1831                     int flag = 0;
1832                     if ( m_underMouse == node )
1833                         flag |= wxCONTROL_CURRENT;
1834                     if ( node->IsOpen() )
1835                         flag |= wxCONTROL_EXPANDED;
1836
1837                     // ensure that we don't overflow the cell (which might
1838                     // happen if the column is very narrow)
1839                     wxDCClipper clip(dc, cell_rect);
1840
1841                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1842                 }
1843
1844                 // force the expander column to left-center align
1845                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1846             }
1847             if (node && !node->HasChildren())
1848             {
1849                 // Yes, if the node does not have any child, it must be a leaf which
1850                 // mean that it is a temporarily created by GetTreeNodeByRow
1851                 wxDELETE(node);
1852             }
1853
1854             wxRect item_rect = cell_rect;
1855             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1856
1857             // account for the tree indent (harmless if we're not indented)
1858             item_rect.x += indent;
1859             item_rect.width -= indent;
1860
1861             if ( item_rect.width <= 0 )
1862                 continue;
1863
1864             int state = 0;
1865             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1866                 state |= wxDATAVIEW_CELL_SELECTED;
1867
1868             // TODO: it would be much more efficient to create a clipping
1869             //       region for the entire column being rendered (in the OnPaint
1870             //       of wxDataViewMainWindow) instead of a single clip region for
1871             //       each cell. However it would mean that each renderer should
1872             //       respect the given wxRect's top & bottom coords, eventually
1873             //       violating only the left & right coords - however the user can
1874             //       make its own renderer and thus we cannot be sure of that.
1875             wxDCClipper clip(dc, item_rect);
1876
1877             cell->WXCallRender(item_rect, &dc, state);
1878         }
1879
1880         cell_rect.x += cell_rect.width;
1881     }
1882 }
1883
1884 void wxDataViewMainWindow::OnRenameTimer()
1885 {
1886     // We have to call this here because changes may just have
1887     // been made and no screen update taken place.
1888     if ( m_dirty )
1889     {
1890         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1891         //       (needs to be tested!)
1892         wxSafeYield();
1893     }
1894
1895     wxDataViewItem item = GetItemByRow( m_currentRow );
1896
1897     wxRect labelRect = GetItemRect(item, m_currentCol);
1898
1899     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1900 }
1901
1902 //-----------------------------------------------------------------------------
1903 // Helper class for do operation on the tree node
1904 //-----------------------------------------------------------------------------
1905 class DoJob
1906 {
1907 public:
1908     DoJob() { }
1909     virtual ~DoJob() { }
1910
1911     // The return value control how the tree-walker tranverse the tree
1912     // 0: Job done, stop tranverse and return
1913     // 1: Ignore the current node's subtree and continue
1914     // 2: Job not done, continue
1915     enum  { OK = 0 , IGR = 1, CONT = 2 };
1916     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1917     virtual int operator() ( void * n ) = 0;
1918 };
1919
1920 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1921 {
1922     if( node==NULL )
1923         return false;
1924
1925     switch( func( node ) )
1926     {
1927         case DoJob::OK :
1928             return true;
1929         case DoJob::IGR:
1930             return false;
1931         case DoJob::CONT:
1932         default:
1933             ;
1934     }
1935
1936     const wxDataViewTreeNodes& nodes = node->GetNodes();
1937     const wxDataViewTreeLeaves& leaves = node->GetChildren();
1938
1939     int len_nodes = nodes.GetCount();
1940     int len = leaves.GetCount();
1941     int i = 0, nodes_i = 0;
1942
1943     for(; i < len; i ++ )
1944     {
1945         void * n = leaves[i];
1946         if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
1947         {
1948             wxDataViewTreeNode * nd = nodes[nodes_i];
1949             nodes_i++;
1950
1951             if( Walker( nd , func ) )
1952                 return true;
1953
1954         }
1955         else
1956             switch( func( n ) )
1957             {
1958                 case DoJob::OK :
1959                     return true;
1960                 case DoJob::IGR:
1961                     continue;
1962                 case DoJob::CONT:
1963                 default:
1964                 ;
1965             }
1966     }
1967     return false;
1968 }
1969
1970 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
1971 {
1972
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             const size_t selCount = m_selection.size();
2028             for ( size_t i = 0; i < selCount; i++ )
2029             {
2030                 if ( m_selection[i] > (unsigned)row )
2031                     m_selection[i]--;
2032             }
2033
2034             int itemRow = m_selection.Index(row);
2035             if ( itemRow != wxNOT_FOUND )
2036                 m_selection.RemoveAt(itemRow);
2037         }
2038
2039     }
2040     else // general case
2041     {
2042         wxDataViewTreeNode * node = FindNode(parent);
2043         int itemPosInNode = node ? node->GetChildren().Index(item.GetID()) : wxNOT_FOUND;
2044
2045         // Notice that it is possible that the item being deleted is not in the
2046         // tree at all, for example we could be deleting a never shown (because
2047         // collapsed) item in a tree model. So it's not an error if we don't know
2048         // about this item, just return without doing anything then.
2049         if ( !node || itemPosInNode == wxNOT_FOUND )
2050             return false;
2051
2052         bool isContainer = false;
2053         wxDataViewTreeNode *itemNode = NULL;
2054
2055         const wxDataViewTreeNodes nds = node->GetNodes();
2056         for (size_t i = 0; i < nds.GetCount(); i ++)
2057         {
2058             if (nds[i]->GetItem() == item)
2059             {
2060                 isContainer = true;
2061                 itemNode = nds[i];
2062                 break;
2063             }
2064         }
2065
2066         // Delete the item from wxDataViewTreeNode representation:
2067         int itemsDeleted = 1;
2068         node->GetChildren().Remove( item.GetID() );
2069
2070         if( isContainer )
2071         {
2072             wxDataViewTreeNode *n = node->FindItemAsNode(item);
2073
2074             wxCHECK_MSG( n != NULL, false, "item not found" );
2075
2076             node->GetNodes().Remove( n );
2077             itemsDeleted += n->GetSubTreeCount();
2078             ::DestroyTreeHelper(n);
2079         }
2080
2081         // Make the row number invalid and get a new valid one when user call GetRowCount
2082         m_count = -1;
2083         node->ChangeSubTreeCount(-itemsDeleted);
2084
2085         // Update selection by removing 'item' and its entire children tree from the selection.
2086         if ( !m_selection.empty() )
2087         {
2088             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2089             // the parent ('node') and position in its list of children
2090             int itemRow;
2091             if ( itemPosInNode == 0 )
2092             {
2093                 // 1st child, row number is that of the parent node + 1
2094                 itemRow = GetRowByItem(node->GetItem()) + 1;
2095             }
2096             else
2097             {
2098                 // row number is that of the sibling above 'item' + its subtree if any + 1
2099                 const wxDataViewItem sibling = wxDataViewItem(node->GetChildren()[itemPosInNode - 1]);
2100                 const wxDataViewTreeNode *siblingNode = node->FindItemAsNode(sibling);
2101
2102                 itemRow = GetRowByItem(sibling);
2103                 if ( siblingNode )
2104                     itemRow += siblingNode->GetSubTreeCount();
2105                 itemRow += 1;
2106             }
2107
2108             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2109
2110             const size_t numSelections = m_selection.size();
2111             for ( size_t i = 0; i < numSelections; ++i )
2112             {
2113                 const int s = m_selection[i];
2114                 if ( s < itemRow )
2115                     newsel.push_back(s);
2116                 else if ( s >= itemRow + itemsDeleted )
2117                     newsel.push_back(s - itemsDeleted);
2118                 // else: deleted item, remove from selection
2119             }
2120
2121             m_selection = newsel;
2122         }
2123     }
2124
2125     // Change the current row to the last row if the current exceed the max row number
2126     if( m_currentRow > GetRowCount() )
2127         ChangeCurrentRow(m_count - 1);
2128
2129     GetOwner()->UpdateColBestWidths();
2130     UpdateDisplay();
2131
2132     return true;
2133 }
2134
2135 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2136 {
2137     SortPrepare();
2138     g_model->Resort();
2139
2140     GetOwner()->UpdateColBestWidths();
2141
2142     // Send event
2143     wxWindow *parent = GetParent();
2144     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2145     le.SetEventObject(parent);
2146     le.SetModel(GetOwner()->GetModel());
2147     le.SetItem(item);
2148     parent->GetEventHandler()->ProcessEvent(le);
2149
2150     return true;
2151 }
2152
2153 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2154 {
2155     int view_column = -1;
2156     unsigned int n_col = m_owner->GetColumnCount();
2157     for (unsigned i = 0; i < n_col; i++)
2158     {
2159         wxDataViewColumn *column = m_owner->GetColumn( i );
2160         if (column->GetModelColumn() == model_column)
2161         {
2162             view_column = (int) i;
2163             break;
2164         }
2165     }
2166     if (view_column == -1)
2167         return false;
2168
2169     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2170 /*#define MAX_VIRTUAL_WIDTH       100000
2171
2172     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2173     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2174     Refresh( true, &rect );
2175
2176     return true;
2177 */
2178     SortPrepare();
2179     g_model->Resort();
2180
2181     GetOwner()->UpdateColBestWidth(view_column);
2182
2183     // Send event
2184     wxWindow *parent = GetParent();
2185     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2186     le.SetEventObject(parent);
2187     le.SetModel(GetOwner()->GetModel());
2188     le.SetItem(item);
2189     le.SetColumn(view_column);
2190     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2191     parent->GetEventHandler()->ProcessEvent(le);
2192
2193     return true;
2194 }
2195
2196 bool wxDataViewMainWindow::Cleared()
2197 {
2198     DestroyTree();
2199     m_selection.Clear();
2200
2201     SortPrepare();
2202     BuildTree( GetOwner()->GetModel() );
2203
2204     GetOwner()->UpdateColBestWidths();
2205     UpdateDisplay();
2206
2207     return true;
2208 }
2209
2210 void wxDataViewMainWindow::UpdateDisplay()
2211 {
2212     m_dirty = true;
2213     m_underMouse = NULL;
2214 }
2215
2216 void wxDataViewMainWindow::OnInternalIdle()
2217 {
2218     wxWindow::OnInternalIdle();
2219
2220     if (m_dirty)
2221     {
2222         RecalculateDisplay();
2223         m_dirty = false;
2224     }
2225 }
2226
2227 void wxDataViewMainWindow::RecalculateDisplay()
2228 {
2229     wxDataViewModel *model = GetOwner()->GetModel();
2230     if (!model)
2231     {
2232         Refresh();
2233         return;
2234     }
2235
2236     int width = GetEndOfLastCol();
2237     int height = GetLineStart( GetRowCount() );
2238
2239     SetVirtualSize( width, height );
2240     GetOwner()->SetScrollRate( 10, m_lineHeight );
2241
2242     Refresh();
2243 }
2244
2245 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2246 {
2247     m_underMouse = NULL;
2248
2249     wxWindow::ScrollWindow( dx, dy, rect );
2250
2251     if (GetOwner()->m_headerArea)
2252         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2253 }
2254
2255 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2256 {
2257     m_underMouse = NULL;
2258
2259     int x, y;
2260     m_owner->GetScrollPixelsPerUnit( &x, &y );
2261     int sy = GetLineStart( rows )/y;
2262     int sx = 0;
2263     if( column != -1 )
2264     {
2265         wxRect rect = GetClientRect();
2266         int colnum = 0;
2267         int x_start, w = 0;
2268         int xx, yy, xe;
2269         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2270         for (x_start = 0; colnum < column; colnum++)
2271         {
2272             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2273             if (col->IsHidden())
2274                 continue;      // skip it!
2275
2276             w = col->GetWidth();
2277             x_start += w;
2278         }
2279
2280         int x_end = x_start + w;
2281         xe = xx + rect.width;
2282         if( x_end > xe )
2283         {
2284             sx = ( xx + x_end - xe )/x;
2285         }
2286         if( x_start < xx )
2287         {
2288             sx = x_start/x;
2289         }
2290     }
2291     m_owner->Scroll( sx, sy );
2292 }
2293
2294 int wxDataViewMainWindow::GetCountPerPage() const
2295 {
2296     wxSize size = GetClientSize();
2297     return size.y / m_lineHeight;
2298 }
2299
2300 int wxDataViewMainWindow::GetEndOfLastCol() const
2301 {
2302     int width = 0;
2303     unsigned int i;
2304     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2305     {
2306         const wxDataViewColumn *c =
2307             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2308
2309         if (!c->IsHidden())
2310             width += c->GetWidth();
2311     }
2312     return width;
2313 }
2314
2315 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2316 {
2317     int x = 0;
2318     int y = 0;
2319     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2320
2321     return GetLineAt( y );
2322 }
2323
2324 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2325 {
2326     wxSize client_size = GetClientSize();
2327     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2328                                     &client_size.x, &client_size.y );
2329
2330     // we should deal with the pixel here
2331     unsigned int row = GetLineAt(client_size.y) - 1;
2332
2333     return wxMin( GetRowCount()-1, row );
2334 }
2335
2336 unsigned int wxDataViewMainWindow::GetRowCount()
2337 {
2338     if ( m_count == -1 )
2339     {
2340         m_count = RecalculateCount();
2341         UpdateDisplay();
2342     }
2343     return m_count;
2344 }
2345
2346 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2347 {
2348     m_currentRow = row;
2349
2350     // send event
2351 }
2352
2353 void wxDataViewMainWindow::SelectAllRows( bool on )
2354 {
2355     if (IsEmpty())
2356         return;
2357
2358     if (on)
2359     {
2360         m_selection.Clear();
2361         for (unsigned int i = 0; i < GetRowCount(); i++)
2362             m_selection.Add( i );
2363         Refresh();
2364     }
2365     else
2366     {
2367         unsigned int first_visible = GetFirstVisibleRow();
2368         unsigned int last_visible = GetLastVisibleRow();
2369         unsigned int i;
2370         for (i = 0; i < m_selection.GetCount(); i++)
2371         {
2372             unsigned int row = m_selection[i];
2373             if ((row >= first_visible) && (row <= last_visible))
2374                 RefreshRow( row );
2375         }
2376         m_selection.Clear();
2377     }
2378 }
2379
2380 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2381 {
2382     if (m_selection.Index( row ) == wxNOT_FOUND)
2383     {
2384         if (on)
2385         {
2386             m_selection.Add( row );
2387             RefreshRow( row );
2388         }
2389     }
2390     else
2391     {
2392         if (!on)
2393         {
2394             m_selection.Remove( row );
2395             RefreshRow( row );
2396         }
2397     }
2398 }
2399
2400 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2401 {
2402     if (from > to)
2403     {
2404         unsigned int tmp = from;
2405         from = to;
2406         to = tmp;
2407     }
2408
2409     unsigned int i;
2410     for (i = from; i <= to; i++)
2411     {
2412         if (m_selection.Index( i ) == wxNOT_FOUND)
2413         {
2414             if (on)
2415                 m_selection.Add( i );
2416         }
2417         else
2418         {
2419             if (!on)
2420                 m_selection.Remove( i );
2421         }
2422     }
2423     RefreshRows( from, to );
2424 }
2425
2426 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2427 {
2428     for (size_t i=0; i < aSelections.GetCount(); i++)
2429     {
2430         int n = aSelections[i];
2431
2432         m_selection.Add( n );
2433         RefreshRow( n );
2434     }
2435 }
2436
2437 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2438 {
2439     if (m_selection.Index( row ) == wxNOT_FOUND)
2440         m_selection.Add( row );
2441     else
2442         m_selection.Remove( row );
2443     RefreshRow( row );
2444 }
2445
2446 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2447 {
2448     return (m_selection.Index( row ) != wxNOT_FOUND);
2449 }
2450
2451 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2452 {
2453     wxWindow *parent = GetParent();
2454     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2455
2456     le.SetEventObject(parent);
2457     le.SetModel(GetOwner()->GetModel());
2458     le.SetItem( item );
2459
2460     parent->GetEventHandler()->ProcessEvent(le);
2461 }
2462
2463 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2464 {
2465     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2466     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2467
2468     wxSize client_size = GetClientSize();
2469     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2470     wxRect intersect_rect = client_rect.Intersect( rect );
2471     if (intersect_rect.width > 0)
2472         Refresh( true, &intersect_rect );
2473 }
2474
2475 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2476 {
2477     if (from > to)
2478     {
2479         unsigned int tmp = to;
2480         to = from;
2481         from = tmp;
2482     }
2483
2484     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2485     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2486
2487     wxSize client_size = GetClientSize();
2488     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2489     wxRect intersect_rect = client_rect.Intersect( rect );
2490     if (intersect_rect.width > 0)
2491         Refresh( true, &intersect_rect );
2492 }
2493
2494 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2495 {
2496     wxSize client_size = GetClientSize();
2497     int start = GetLineStart( firstRow );
2498     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2499     if (start > client_size.y) return;
2500
2501     wxRect rect( 0, start, client_size.x, client_size.y - start );
2502
2503     Refresh( true, &rect );
2504 }
2505
2506 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2507 {
2508     wxCHECK_RET( newCurrent < GetRowCount(),
2509                 wxT("invalid item index in OnArrowChar()") );
2510
2511     // if there is no selection, we cannot move it anywhere
2512     if (!HasCurrentRow())
2513         return;
2514
2515     unsigned int oldCurrent = m_currentRow;
2516
2517     // in single selection we just ignore Shift as we can't select several
2518     // items anyhow
2519     if ( event.ShiftDown() && !IsSingleSel() )
2520     {
2521         RefreshRow( oldCurrent );
2522
2523         ChangeCurrentRow( newCurrent );
2524
2525         // select all the items between the old and the new one
2526         if ( oldCurrent > newCurrent )
2527         {
2528             newCurrent = oldCurrent;
2529             oldCurrent = m_currentRow;
2530         }
2531
2532         SelectRows( oldCurrent, newCurrent, true );
2533         if (oldCurrent!=newCurrent)
2534             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2535     }
2536     else // !shift
2537     {
2538         RefreshRow( oldCurrent );
2539
2540         // all previously selected items are unselected unless ctrl is held
2541         if ( !event.ControlDown() )
2542             SelectAllRows(false);
2543
2544         ChangeCurrentRow( newCurrent );
2545
2546         if ( !event.ControlDown() )
2547         {
2548             SelectRow( m_currentRow, true );
2549             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2550         }
2551         else
2552             RefreshRow( m_currentRow );
2553     }
2554
2555     GetOwner()->EnsureVisible( m_currentRow, -1 );
2556 }
2557
2558 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2559 {
2560     wxRect rect;
2561     rect.x = 0;
2562     rect.y = GetLineStart( row );
2563     rect.width = GetEndOfLastCol();
2564     rect.height = GetLineHeight( row );
2565
2566     return rect;
2567 }
2568
2569 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2570 {
2571     const wxDataViewModel *model = GetOwner()->GetModel();
2572
2573     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2574     {
2575         // TODO make more efficient
2576
2577         int start = 0;
2578
2579         unsigned int r;
2580         for (r = 0; r < row; r++)
2581         {
2582             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2583             if (!node) return start;
2584
2585             wxDataViewItem item = node->GetItem();
2586
2587             if (node && !node->HasChildren())
2588             {
2589                 // Yes, if the node does not have any child, it must be a leaf which
2590                 // mean that it is a temporarily created by GetTreeNodeByRow
2591                 wxDELETE(node);
2592             }
2593
2594             unsigned int cols = GetOwner()->GetColumnCount();
2595             unsigned int col;
2596             int height = m_lineHeight;
2597             for (col = 0; col < cols; col++)
2598             {
2599                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2600                 if (column->IsHidden())
2601                     continue;      // skip it!
2602
2603                 if ((col != 0) &&
2604                     model->IsContainer(item) &&
2605                     !model->HasContainerColumns(item))
2606                     continue;      // skip it!
2607
2608                 wxDataViewRenderer *renderer =
2609                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2610                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2611
2612                 height = wxMax( height, renderer->GetSize().y );
2613             }
2614
2615             start += height;
2616         }
2617
2618         return start;
2619     }
2620     else
2621     {
2622         return row * m_lineHeight;
2623     }
2624 }
2625
2626 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2627 {
2628     const wxDataViewModel *model = GetOwner()->GetModel();
2629
2630     // check for the easy case first
2631     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2632         return y / m_lineHeight;
2633
2634     // TODO make more efficient
2635     unsigned int row = 0;
2636     unsigned int yy = 0;
2637     for (;;)
2638     {
2639         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2640         if (!node)
2641         {
2642             // not really correct...
2643             return row + ((y-yy) / m_lineHeight);
2644         }
2645
2646         wxDataViewItem item = node->GetItem();
2647
2648         if (node && !node->HasChildren())
2649         {
2650             // Yes, if the node does not have any child, it must be a leaf which
2651             // mean that it is a temporarily created by GetTreeNodeByRow
2652             wxDELETE(node);
2653         }
2654
2655         unsigned int cols = GetOwner()->GetColumnCount();
2656         unsigned int col;
2657         int height = m_lineHeight;
2658         for (col = 0; col < cols; col++)
2659         {
2660             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2661             if (column->IsHidden())
2662                 continue;      // skip it!
2663
2664             if ((col != 0) &&
2665                 model->IsContainer(item) &&
2666                 !model->HasContainerColumns(item))
2667                 continue;      // skip it!
2668
2669             wxDataViewRenderer *renderer =
2670                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2671             renderer->PrepareForItem(model, item, column->GetModelColumn());
2672
2673             height = wxMax( height, renderer->GetSize().y );
2674         }
2675
2676         yy += height;
2677         if (y < yy)
2678             return row;
2679
2680         row++;
2681     }
2682 }
2683
2684 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2685 {
2686     const wxDataViewModel *model = GetOwner()->GetModel();
2687
2688     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2689     {
2690         wxASSERT( !IsVirtualList() );
2691
2692         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2693         // wxASSERT( node );
2694         if (!node) return m_lineHeight;
2695
2696         wxDataViewItem item = node->GetItem();
2697
2698         if (node && !node->HasChildren())
2699         {
2700                 // Yes, if the node does not have any child, it must be a leaf which
2701                 // mean that it is a temporarily created by GetTreeNodeByRow
2702             wxDELETE(node);
2703         }
2704
2705         int height = m_lineHeight;
2706
2707         unsigned int cols = GetOwner()->GetColumnCount();
2708         unsigned int col;
2709         for (col = 0; col < cols; col++)
2710         {
2711             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2712             if (column->IsHidden())
2713                 continue;      // skip it!
2714
2715             if ((col != 0) &&
2716                 model->IsContainer(item) &&
2717                 !model->HasContainerColumns(item))
2718                 continue;      // skip it!
2719
2720             wxDataViewRenderer *renderer =
2721                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2722             renderer->PrepareForItem(model, item, column->GetModelColumn());
2723
2724             height = wxMax( height, renderer->GetSize().y );
2725         }
2726
2727         return height;
2728     }
2729     else
2730     {
2731         return m_lineHeight;
2732     }
2733 }
2734
2735 class RowToItemJob: public DoJob
2736 {
2737 public:
2738     RowToItemJob( unsigned int row , int current )
2739         { this->row = row; this->current = current; }
2740     virtual ~RowToItemJob() {}
2741
2742     virtual int operator() ( wxDataViewTreeNode * node )
2743     {
2744         current ++;
2745         if( current == static_cast<int>(row))
2746         {
2747             ret = node->GetItem();
2748             return DoJob::OK;
2749         }
2750
2751         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2752         {
2753             current += node->GetSubTreeCount();
2754             return  DoJob::IGR;
2755         }
2756         else
2757         {
2758             // If the current has no child node, we can find the desired item of the row
2759             // number directly.
2760             // This if can speed up finding in some case, and will has a very good effect
2761             // when it comes to list view
2762             if( node->GetNodes().GetCount() == 0)
2763             {
2764                 int index = static_cast<int>(row) - current - 1;
2765                 ret = wxDataViewItem(node->GetChildren().Item( index ));
2766                 return DoJob::OK;
2767             }
2768             return DoJob::CONT;
2769         }
2770     }
2771
2772     virtual int operator() ( void * n )
2773     {
2774         current ++;
2775         if( current == static_cast<int>(row))
2776         {
2777             ret = wxDataViewItem( n );
2778             return DoJob::OK;
2779         }
2780         return DoJob::CONT;
2781     }
2782
2783     wxDataViewItem GetResult() const
2784         { return ret; }
2785
2786 private:
2787     unsigned int row;
2788     int current;
2789     wxDataViewItem ret;
2790 };
2791
2792 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2793 {
2794     if (IsVirtualList())
2795     {
2796         return wxDataViewItem( wxUIntToPtr(row+1) );
2797     }
2798     else
2799     {
2800         RowToItemJob job( row, -2 );
2801         Walker( m_root , job );
2802         return job.GetResult();
2803     }
2804 }
2805
2806 class RowToTreeNodeJob: public DoJob
2807 {
2808 public:
2809     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2810     {
2811         this->row = row;
2812         this->current = current;
2813         ret = NULL;
2814         parent = node;
2815     }
2816     virtual ~RowToTreeNodeJob(){ }
2817
2818     virtual int operator() ( wxDataViewTreeNode * node )
2819     {
2820         current ++;
2821         if( current == static_cast<int>(row))
2822         {
2823             ret = node;
2824             return DoJob::OK;
2825         }
2826
2827         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2828         {
2829             current += node->GetSubTreeCount();
2830             return  DoJob::IGR;
2831         }
2832         else
2833         {
2834             parent = node;
2835
2836             // If the current node has no children, we can find the desired item of the
2837             // row number directly.
2838             // This if can speed up finding in some case, and will have a very good
2839             // effect for list views.
2840             if( node->GetNodes().GetCount() == 0)
2841             {
2842                 int index = static_cast<int>(row) - current - 1;
2843                 void * n = node->GetChildren().Item( index );
2844                 ret = new wxDataViewTreeNode( parent );
2845                 ret->SetItem( wxDataViewItem( n ));
2846                 ret->SetHasChildren(false);
2847                 return DoJob::OK;
2848             }
2849             return DoJob::CONT;
2850         }
2851     }
2852
2853     virtual int operator() ( void * n )
2854     {
2855         current ++;
2856         if( current == static_cast<int>(row))
2857         {
2858             ret = new wxDataViewTreeNode( parent );
2859             ret->SetItem( wxDataViewItem( n ));
2860             ret->SetHasChildren(false);
2861             return DoJob::OK;
2862         }
2863
2864         return DoJob::CONT;
2865     }
2866
2867     wxDataViewTreeNode * GetResult() const
2868         { return ret; }
2869
2870 private:
2871     unsigned int row;
2872     int current;
2873     wxDataViewTreeNode * ret;
2874     wxDataViewTreeNode * parent;
2875 };
2876
2877 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2878 {
2879     wxASSERT( !IsVirtualList() );
2880
2881     RowToTreeNodeJob job( row , -2, m_root );
2882     Walker( m_root , job );
2883     return job.GetResult();
2884 }
2885
2886 wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type,
2887                                                          const wxDataViewItem & item )
2888 {
2889     wxWindow *parent = GetParent();
2890     wxDataViewEvent le(type, parent->GetId());
2891
2892     le.SetEventObject(parent);
2893     le.SetModel(GetOwner()->GetModel());
2894     le.SetItem( item );
2895
2896     parent->GetEventHandler()->ProcessEvent(le);
2897     return le;
2898 }
2899
2900 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2901 {
2902     if (IsList())
2903         return false;
2904
2905     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2906     if (!node)
2907         return false;
2908
2909     if (!node->HasChildren())
2910     {
2911         delete node;
2912         return false;
2913     }
2914
2915     return node->IsOpen();
2916 }
2917
2918 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2919 {
2920     if (IsList())
2921         return false;
2922
2923     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2924     if (!node)
2925         return false;
2926
2927     if (!node->HasChildren())
2928     {
2929         delete node;
2930         return false;
2931     }
2932
2933     return true;
2934 }
2935
2936 void wxDataViewMainWindow::Expand( unsigned int row )
2937 {
2938     if (IsList())
2939         return;
2940
2941     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2942     if (!node)
2943         return;
2944
2945     if (!node->HasChildren())
2946     {
2947         delete node;
2948         return;
2949     }
2950
2951             if (!node->IsOpen())
2952             {
2953                 wxDataViewEvent e =
2954                     SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem());
2955
2956                 // Check if the user prevent expanding
2957                 if( e.GetSkipped() )
2958                     return;
2959
2960                 node->ToggleOpen();
2961
2962                 // build the children of current node
2963                 if( node->GetChildrenNumber() == 0 )
2964                 {
2965                     SortPrepare();
2966                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2967                 }
2968
2969                 // By expanding the node all row indices that are currently in the selection list
2970                 // and are greater than our node have become invalid. So we have to correct that now.
2971                 const unsigned rowAdjustment = node->GetSubTreeCount();
2972                 for(unsigned i=0; i<m_selection.size(); ++i)
2973                 {
2974                     const unsigned testRow = m_selection[i];
2975                     // all rows above us are not affected, so skip them
2976                     if(testRow <= row)
2977                         continue;
2978
2979                     m_selection[i] += rowAdjustment;
2980                 }
2981
2982                 if(m_currentRow > row)
2983                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2984
2985                 m_count = -1;
2986                 UpdateDisplay();
2987                 // Send the expanded event
2988                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2989             }
2990 }
2991
2992 void wxDataViewMainWindow::Collapse(unsigned int row)
2993 {
2994     if (IsList())
2995         return;
2996
2997     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2998     if (!node)
2999         return;
3000
3001     if (!node->HasChildren())
3002     {
3003         delete node;
3004         return;
3005     }
3006
3007         if (node->IsOpen())
3008         {
3009             wxDataViewEvent e =
3010                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
3011             if( e.GetSkipped() )
3012                 return;
3013
3014             // Find out if there are selected items below the current node.
3015             bool selectCollapsingRow = false;
3016             const unsigned rowAdjustment = node->GetSubTreeCount();
3017             unsigned maxRowToBeTested = row + rowAdjustment;
3018             for(unsigned i=0; i<m_selection.size(); ++i)
3019             {
3020                 const unsigned testRow = m_selection[i];
3021                 if(testRow > row && testRow <= maxRowToBeTested)
3022                 {
3023                     selectCollapsingRow = true;
3024                     // get out as soon as we have found a node that is selected
3025                     break;
3026                 }
3027             }
3028
3029             node->ToggleOpen();
3030
3031             // If the node to be closed has selected items the user won't see those any longer.
3032             // We select the collapsing node in this case.
3033             if(selectCollapsingRow)
3034             {
3035                 SelectAllRows(false);
3036                 ChangeCurrentRow(row);
3037                 SelectRow(row, true);
3038                 SendSelectionChangedEvent(GetItemByRow(row));
3039             }
3040             else
3041             {
3042                 // if there were no selected items below our node we still need to "fix" the
3043                 // selection list to adjust for the changing of the row indices.
3044                 // We actually do the opposite of what we are doing in Expand().
3045                 for(unsigned i=0; i<m_selection.size(); ++i)
3046                 {
3047                     const unsigned testRow = m_selection[i];
3048                     // all rows above us are not affected, so skip them
3049                     if(testRow <= row)
3050                         continue;
3051
3052                     m_selection[i] -= rowAdjustment;
3053                 }
3054
3055                 // if the "current row" is being collapsed away we change it to the current row ;-)
3056                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3057                     ChangeCurrentRow(row);
3058                 else if(m_currentRow > row)
3059                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3060             }
3061
3062             m_count = -1;
3063             UpdateDisplay();
3064             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3065         }
3066 }
3067
3068 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3069 {
3070     const wxDataViewModel * model = GetOwner()->GetModel();
3071     if( model == NULL )
3072         return NULL;
3073
3074     if (!item.IsOk())
3075         return m_root;
3076
3077     // Compose the parent-chain for the item we are looking for
3078     wxVector<wxDataViewItem> parentChain;
3079     wxDataViewItem it( item );
3080     while( it.IsOk() )
3081     {
3082         parentChain.push_back(it);
3083         it = model->GetParent(it);
3084     }
3085
3086     // Find the item along the parent-chain.
3087     // This algorithm is designed to speed up the node-finding method
3088     wxDataViewTreeNode* node = m_root;
3089     for( unsigned iter = parentChain.size()-1; ; --iter )
3090     {
3091         if( node->HasChildren() )
3092         {
3093             if( node->GetChildrenNumber() == 0 )
3094             {
3095                 SortPrepare();
3096                 ::BuildTreeHelper(model, node->GetItem(), node);
3097             }
3098
3099             const wxDataViewTreeNodes& nodes = node->GetNodes();
3100             bool found = false;
3101
3102             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3103             {
3104                 wxDataViewTreeNode* currentNode = nodes[i];
3105                 if (currentNode->GetItem() == parentChain[iter])
3106                 {
3107                     if (currentNode->GetItem() == item)
3108                         return currentNode;
3109
3110                     node = currentNode;
3111                     found = true;
3112                     break;
3113                 }
3114             }
3115             if (!found)
3116                 return NULL;
3117         }
3118         else
3119             return NULL;
3120
3121         if ( !iter )
3122             break;
3123     }
3124     return NULL;
3125 }
3126
3127 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3128                                     wxDataViewColumn* &column )
3129 {
3130     wxDataViewColumn *col = NULL;
3131     unsigned int cols = GetOwner()->GetColumnCount();
3132     unsigned int colnum = 0;
3133     int x, y;
3134     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3135     for (unsigned x_start = 0; colnum < cols; colnum++)
3136     {
3137         col = GetOwner()->GetColumnAt(colnum);
3138         if (col->IsHidden())
3139             continue;      // skip it!
3140
3141         unsigned int w = col->GetWidth();
3142         if (x_start+w >= (unsigned int)x)
3143             break;
3144
3145         x_start += w;
3146     }
3147
3148     column = col;
3149     item = GetItemByRow( GetLineAt( y ) );
3150 }
3151
3152 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3153                                           const wxDataViewColumn* column )
3154 {
3155     int xpos = 0;
3156     int width = 0;
3157
3158     unsigned int cols = GetOwner()->GetColumnCount();
3159     // If column is null the loop will compute the combined width of all columns.
3160     // Otherwise, it will compute the x position of the column we are looking for.
3161     for (unsigned int i = 0; i < cols; i++)
3162     {
3163         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3164
3165         if (col == column)
3166             break;
3167
3168         if (col->IsHidden())
3169             continue;      // skip it!
3170
3171         xpos += col->GetWidth();
3172         width += col->GetWidth();
3173     }
3174
3175     if(column != 0)
3176     {
3177         // If we have a column, we need can get its width directly.
3178         if(column->IsHidden())
3179             width = 0;
3180         else
3181             width = column->GetWidth();
3182
3183     }
3184     else
3185     {
3186         // If we have no column, we reset the x position back to zero.
3187         xpos = 0;
3188     }
3189
3190     // we have to take an expander column into account and compute its indentation
3191     // to get the correct x position where the actual text is
3192     int indent = 0;
3193     int row = GetRowByItem(item);
3194     if (!IsList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3195     {
3196         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3197         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3198         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3199
3200         if(!node->HasChildren())
3201             delete node;
3202     }
3203
3204     wxRect itemRect( xpos + indent,
3205                      GetLineStart( row ),
3206                      width - indent,
3207                      GetLineHeight( row ) );
3208
3209     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3210                                       &itemRect.x, &itemRect.y );
3211
3212     return itemRect;
3213 }
3214
3215 int wxDataViewMainWindow::RecalculateCount()
3216 {
3217     if (IsVirtualList())
3218     {
3219         wxDataViewVirtualListModel *list_model =
3220             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3221
3222         return list_model->GetCount();
3223     }
3224     else
3225     {
3226         return m_root->GetSubTreeCount();
3227     }
3228 }
3229
3230 class ItemToRowJob : public DoJob
3231 {
3232 public:
3233     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3234         : m_iter(iter),
3235         item(item_)
3236     {
3237         ret = -1;
3238     }
3239
3240     // Maybe binary search will help to speed up this process
3241     virtual int operator() ( wxDataViewTreeNode * node)
3242     {
3243         ret ++;
3244         if( node->GetItem() == item )
3245         {
3246             return DoJob::OK;
3247         }
3248
3249         if( node->GetItem() == *m_iter )
3250         {
3251             m_iter++;
3252             return DoJob::CONT;
3253         }
3254         else
3255         {
3256             ret += node->GetSubTreeCount();
3257             return DoJob::IGR;
3258         }
3259
3260     }
3261
3262     virtual int operator() ( void * n )
3263     {
3264         ret ++;
3265         if( n == item.GetID() )
3266             return DoJob::OK;
3267         return DoJob::CONT;
3268     }
3269
3270     // the row number is begin from zero
3271     int GetResult() const
3272         { return ret -1; }
3273
3274 private:
3275     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3276     wxDataViewItem item;
3277     int ret;
3278
3279 };
3280
3281 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3282 {
3283     const wxDataViewModel * model = GetOwner()->GetModel();
3284     if( model == NULL )
3285         return -1;
3286
3287     if (IsVirtualList())
3288     {
3289         return wxPtrToUInt( item.GetID() ) -1;
3290     }
3291     else
3292     {
3293         if( !item.IsOk() )
3294             return -1;
3295
3296         // Compose the parent-chain of the item we are looking for
3297         wxVector<wxDataViewItem> parentChain;
3298         wxDataViewItem it( item );
3299         while( it.IsOk() )
3300         {
3301             parentChain.push_back(it);
3302             it = model->GetParent(it);
3303         }
3304
3305         // add an 'invalid' item to represent our 'invisible' root node
3306         parentChain.push_back(wxDataViewItem());
3307
3308         // the parent chain was created by adding the deepest parent first.
3309         // so if we want to start at the root node, we have to iterate backwards through the vector
3310         ItemToRowJob job( item, parentChain.rbegin() );
3311         Walker( m_root, job );
3312         return job.GetResult();
3313     }
3314 }
3315
3316 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3317                              wxDataViewTreeNode * node)
3318 {
3319     if( !model->IsContainer( item ) )
3320         return;
3321
3322     wxDataViewItemArray children;
3323     unsigned int num = model->GetChildren( item, children);
3324
3325     unsigned int index = 0;
3326     while( index < num )
3327     {
3328         if( model->IsContainer( children[index] ) )
3329         {
3330             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3331             n->SetItem(children[index]);
3332             n->SetHasChildren( true );
3333             node->AddNode( n );
3334         }
3335         else
3336         {
3337             node->AddLeaf( children[index].GetID() );
3338         }
3339         index ++;
3340     }
3341     node->SetSubTreeCount( num );
3342     wxDataViewTreeNode * n = node->GetParent();
3343     if( n != NULL)
3344         n->ChangeSubTreeCount(num);
3345
3346 }
3347
3348 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3349 {
3350     DestroyTree();
3351
3352     if (GetOwner()->GetModel()->IsVirtualListModel())
3353     {
3354         m_count = -1;
3355         return;
3356     }
3357
3358     m_root = new wxDataViewTreeNode( NULL );
3359     m_root->SetHasChildren(true);
3360
3361     // First we define a invalid item to fetch the top-level elements
3362     wxDataViewItem item;
3363     SortPrepare();
3364     BuildTreeHelper( model, item, m_root);
3365     m_count = -1;
3366 }
3367
3368 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3369 {
3370     if( node->GetNodeNumber() != 0 )
3371     {
3372         int len = node->GetNodeNumber();
3373         wxDataViewTreeNodes& nodes = node->GetNodes();
3374         for (int i = 0; i < len; i++)
3375             DestroyTreeHelper(nodes[i]);
3376     }
3377     delete node;
3378 }
3379
3380 void wxDataViewMainWindow::DestroyTree()
3381 {
3382     if (!IsVirtualList())
3383     {
3384         ::DestroyTreeHelper(m_root);
3385             m_count = 0;
3386             m_root = NULL;
3387     }
3388 }
3389
3390 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3391 {
3392     wxWindow * const parent = GetParent();
3393
3394     // propagate the char event upwards
3395     wxKeyEvent eventForParent(event);
3396     eventForParent.SetEventObject(parent);
3397     if ( parent->ProcessWindowEvent(eventForParent) )
3398         return;
3399
3400     if ( parent->HandleAsNavigationKey(event) )
3401         return;
3402
3403     // no item -> nothing to do
3404     if (!HasCurrentRow())
3405     {
3406         event.Skip();
3407         return;
3408     }
3409
3410     // don't use m_linesPerPage directly as it might not be computed yet
3411     const int pageSize = GetCountPerPage();
3412     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3413
3414     switch ( event.GetKeyCode() )
3415     {
3416         case WXK_RETURN:
3417             {
3418                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3419                                    parent->GetId());
3420                 le.SetItem( GetItemByRow(m_currentRow) );
3421                 le.SetEventObject(parent);
3422                 le.SetModel(GetOwner()->GetModel());
3423
3424                 parent->GetEventHandler()->ProcessEvent(le);
3425             }
3426             break;
3427
3428         case WXK_UP:
3429             if ( m_currentRow > 0 )
3430                 OnArrowChar( m_currentRow - 1, event );
3431             break;
3432
3433         case WXK_DOWN:
3434             if ( m_currentRow + 1 < GetRowCount() )
3435                 OnArrowChar( m_currentRow + 1, event );
3436             break;
3437         // Add the process for tree expanding/collapsing
3438         case WXK_LEFT:
3439         {
3440             if (IsList())
3441                break;
3442
3443             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3444             if (!node)
3445                 break;
3446
3447             if (node->HasChildren() && node->IsOpen())
3448             {
3449                 Collapse(m_currentRow);
3450             }
3451             else    // if the node is already closed we move the selection to its parent
3452             {
3453                 wxDataViewTreeNode *parent_node = node->GetParent();
3454
3455                 if(!node->HasChildren())
3456                     delete node;
3457
3458                 if (parent_node)
3459                 {
3460                     int parent = GetRowByItem( parent_node->GetItem() );
3461                     if ( parent >= 0 )
3462                     {
3463                         unsigned int row = m_currentRow;
3464                         SelectRow( row, false);
3465                         SelectRow( parent, true );
3466                         ChangeCurrentRow( parent );
3467                         GetOwner()->EnsureVisible( parent, -1 );
3468                         SendSelectionChangedEvent( parent_node->GetItem() );
3469                     }
3470                 }
3471             }
3472             break;
3473         }
3474         case WXK_RIGHT:
3475         {
3476             if (!IsExpanded( m_currentRow ))
3477                 Expand( m_currentRow );
3478             else
3479             {
3480                 unsigned int row = m_currentRow;
3481                 SelectRow( row, false );
3482                 SelectRow( row + 1, true );
3483                 ChangeCurrentRow( row + 1 );
3484                 GetOwner()->EnsureVisible( row + 1, -1 );
3485                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3486             }
3487             break;
3488         }
3489         case WXK_END:
3490         {
3491             if (!IsEmpty())
3492                 OnArrowChar( GetRowCount() - 1, event );
3493             break;
3494         }
3495         case WXK_HOME:
3496             if (!IsEmpty())
3497                 OnArrowChar( 0, event );
3498             break;
3499
3500         case WXK_PAGEUP:
3501             {
3502                 int steps = pageSize - 1;
3503                 int index = m_currentRow - steps;
3504                 if (index < 0)
3505                     index = 0;
3506
3507                 OnArrowChar( index, event );
3508             }
3509             break;
3510
3511         case WXK_PAGEDOWN:
3512             {
3513                 int steps = pageSize - 1;
3514                 unsigned int index = m_currentRow + steps;
3515                 unsigned int count = GetRowCount();
3516                 if ( index >= count )
3517                     index = count - 1;
3518
3519                 OnArrowChar( index, event );
3520             }
3521             break;
3522
3523         case WXK_F2:
3524             {
3525                 if(m_selection.size() == 1)
3526                 {
3527                     // TODO: we need to revise that when we have a concept for a 'current column'
3528                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3529                 }
3530             }
3531             break;
3532
3533         default:
3534             event.Skip();
3535     }
3536 }
3537
3538 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3539 {
3540     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3541     {
3542         // let the base handle mouse wheel events.
3543         event.Skip();
3544         return;
3545     }
3546
3547     // set the focus to ourself if any of the mouse buttons are pressed
3548     if(event.ButtonDown() && !HasFocus())
3549         SetFocus();
3550
3551     int x = event.GetX();
3552     int y = event.GetY();
3553     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3554     wxDataViewColumn *col = NULL;
3555
3556     int xpos = 0;
3557     unsigned int cols = GetOwner()->GetColumnCount();
3558     unsigned int i;
3559     for (i = 0; i < cols; i++)
3560     {
3561         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3562         if (c->IsHidden())
3563             continue;      // skip it!
3564
3565         if (x < xpos + c->GetWidth())
3566         {
3567             col = c;
3568             break;
3569         }
3570         xpos += c->GetWidth();
3571     }
3572     if (!col)
3573     {
3574         event.Skip();
3575         return;
3576     }
3577
3578     wxDataViewRenderer *cell = col->GetRenderer();
3579     unsigned int current = GetLineAt( y );
3580     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3581     {
3582         // Unselect all if below the last row ?
3583         event.Skip();
3584         return;
3585     }
3586
3587     // Test whether the mouse is hovering over the expander (a.k.a tree "+"
3588     // button) and also determine the offset of the real cell start, skipping
3589     // the indentation and the expander itself.
3590     bool hoverOverExpander = false;
3591     int expanderOffset = 0;
3592     if ((!IsList()) && (GetOwner()->GetExpanderColumn() == col))
3593     {
3594         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3595         if( node!=NULL && node->HasChildren() )
3596         {
3597             int indent = node->GetIndentLevel();
3598             indent = GetOwner()->GetIndent()*indent;
3599
3600             // we make the rectangle we are looking in a bit bigger than the actual
3601             // visual expander so the user can hit that little thing reliably
3602             wxRect rect( xpos + indent,
3603                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3604                         m_lineHeight, m_lineHeight);
3605
3606             expanderOffset = indent + m_lineHeight;
3607
3608             if( rect.Contains(x, y) )
3609             {
3610                 // So the mouse is over the expander
3611                 hoverOverExpander = true;
3612                 if (m_underMouse && m_underMouse != node)
3613                 {
3614                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3615                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3616                 }
3617                 if (m_underMouse != node)
3618                 {
3619                     // wxLogMessage("Do the row: %d", current);
3620                     RefreshRow(current);
3621                 }
3622                 m_underMouse = node;
3623             }
3624         }
3625         if (node!=NULL && !node->HasChildren())
3626             delete node;
3627     }
3628     if (!hoverOverExpander)
3629     {
3630         if (m_underMouse != NULL)
3631         {
3632             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3633             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3634             m_underMouse = NULL;
3635         }
3636     }
3637
3638     wxDataViewModel *model = GetOwner()->GetModel();
3639
3640 #if wxUSE_DRAG_AND_DROP
3641     if (event.Dragging())
3642     {
3643         if (m_dragCount == 0)
3644         {
3645             // we have to report the raw, physical coords as we want to be
3646             // able to call HitTest(event.m_pointDrag) from the user code to
3647             // get the item being dragged
3648             m_dragStart = event.GetPosition();
3649         }
3650
3651         m_dragCount++;
3652
3653         if (m_dragCount != 3)
3654             return;
3655
3656         if (event.LeftIsDown())
3657         {
3658             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3659                                              &m_dragStart.x, &m_dragStart.y );
3660             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3661             wxDataViewItem item = GetItemByRow( drag_item_row );
3662
3663             // Notify cell about drag
3664             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3665             event.SetEventObject( m_owner );
3666             event.SetItem( item );
3667             event.SetModel( model );
3668             if (!m_owner->HandleWindowEvent( event ))
3669                 return;
3670
3671             if (!event.IsAllowed())
3672                 return;
3673
3674             wxDataObject *obj = event.GetDataObject();
3675             if (!obj)
3676                 return;
3677
3678             wxDataViewDropSource drag( this, drag_item_row );
3679             drag.SetData( *obj );
3680             /* wxDragResult res = */ drag.DoDragDrop();
3681             delete obj;
3682         }
3683         return;
3684     }
3685     else
3686     {
3687         m_dragCount = 0;
3688     }
3689 #endif // wxUSE_DRAG_AND_DROP
3690
3691     bool simulateClick = false;
3692
3693     if (event.ButtonDClick())
3694     {
3695         m_renameTimer->Stop();
3696         m_lastOnSame = false;
3697     }
3698
3699     wxDataViewItem item = GetItemByRow(current);
3700     bool ignore_other_columns =
3701         ((GetOwner()->GetExpanderColumn() != col) &&
3702         (model->IsContainer(item)) &&
3703         (!model->HasContainerColumns(item)));
3704
3705     if (event.LeftDClick())
3706     {
3707         if(hoverOverExpander)
3708         {
3709             // a double click on the expander will be converted into a "simulated" normal click
3710             simulateClick = true;
3711         }
3712         else if ( current == m_lineLastClicked )
3713         {
3714             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3715             {
3716                 const unsigned colIdx = col->GetModelColumn();
3717
3718                 cell->PrepareForItem(model, item, colIdx);
3719
3720                 wxRect cell_rect( xpos, GetLineStart( current ),
3721                                 col->GetWidth(), GetLineHeight( current ) );
3722                 cell->WXOnActivate( cell_rect, model, item, colIdx );
3723             }
3724             else
3725             {
3726                 wxWindow *parent = GetParent();
3727                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3728                 le.SetItem( item );
3729                 le.SetColumn( col->GetModelColumn() );
3730                 le.SetDataViewColumn( col );
3731                 le.SetEventObject(parent);
3732                 le.SetModel(GetOwner()->GetModel());
3733
3734                 parent->GetEventHandler()->ProcessEvent(le);
3735             }
3736             return;
3737         }
3738         else
3739         {
3740             // The first click was on another item, so don't interpret this as
3741             // a double click, but as a simple click instead
3742             simulateClick = true;
3743         }
3744     }
3745
3746     if (event.LeftUp() && !hoverOverExpander)
3747     {
3748         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3749         {
3750             // select single line
3751             SelectAllRows( false );
3752             SelectRow( m_lineSelectSingleOnUp, true );
3753             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3754         }
3755
3756         // If the user click the expander, we do not do editing even if the column
3757         // with expander are editable
3758         if (m_lastOnSame && !ignore_other_columns)
3759         {
3760             if ((col == m_currentCol) && (current == m_currentRow) &&
3761                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3762             {
3763                 m_renameTimer->Start( 100, true );
3764             }
3765         }
3766
3767         m_lastOnSame = false;
3768         m_lineSelectSingleOnUp = (unsigned int)-1;
3769     }
3770     else if(!event.LeftUp())
3771     {
3772         // This is necessary, because after a DnD operation in
3773         // from and to ourself, the up event is swallowed by the
3774         // DnD code. So on next non-up event (which means here and
3775         // now) m_lineSelectSingleOnUp should be reset.
3776         m_lineSelectSingleOnUp = (unsigned int)-1;
3777     }
3778
3779     if (event.RightDown())
3780     {
3781         m_lineBeforeLastClicked = m_lineLastClicked;
3782         m_lineLastClicked = current;
3783
3784         // If the item is already selected, do not update the selection.
3785         // Multi-selections should not be cleared if a selected item is clicked.
3786         if (!IsRowSelected(current))
3787         {
3788             SelectAllRows(false);
3789             const unsigned oldCurrent = m_currentRow;
3790             ChangeCurrentRow(current);
3791             SelectRow(m_currentRow,true);
3792             RefreshRow(oldCurrent);
3793             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3794         }
3795     }
3796     else if (event.RightUp())
3797     {
3798         wxVariant value;
3799         model->GetValue( value, item, col->GetModelColumn() );
3800         wxWindow *parent = GetParent();
3801         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3802         le.SetItem( item );
3803         le.SetColumn( col->GetModelColumn() );
3804         le.SetDataViewColumn( col );
3805         le.SetEventObject(parent);
3806         le.SetModel(GetOwner()->GetModel());
3807         le.SetValue(value);
3808         parent->GetEventHandler()->ProcessEvent(le);
3809     }
3810     else if (event.MiddleDown())
3811     {
3812     }
3813
3814     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3815     {
3816         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3817
3818         // hoverOverExpander being true tells us that our node must be
3819         // valid and have children.
3820         // So we don't need any extra checks.
3821         if( node->IsOpen() )
3822             Collapse(current);
3823         else
3824             Expand(current);
3825     }
3826     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3827     {
3828         m_lineBeforeLastClicked = m_lineLastClicked;
3829         m_lineLastClicked = current;
3830
3831         unsigned int oldCurrentRow = m_currentRow;
3832         bool oldWasSelected = IsRowSelected(m_currentRow);
3833
3834         bool cmdModifierDown = event.CmdDown();
3835         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3836         {
3837             if ( IsSingleSel() || !IsRowSelected(current) )
3838             {
3839                 SelectAllRows( false );
3840                 ChangeCurrentRow(current);
3841                 SelectRow(m_currentRow,true);
3842                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3843             }
3844             else // multi sel & current is highlighted & no mod keys
3845             {
3846                 m_lineSelectSingleOnUp = current;
3847                 ChangeCurrentRow(current); // change focus
3848             }
3849         }
3850         else // multi sel & either ctrl or shift is down
3851         {
3852             if (cmdModifierDown)
3853             {
3854                 ChangeCurrentRow(current);
3855                 ReverseRowSelection(m_currentRow);
3856                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3857             }
3858             else if (event.ShiftDown())
3859             {
3860                 ChangeCurrentRow(current);
3861
3862                 unsigned int lineFrom = oldCurrentRow,
3863                     lineTo = current;
3864
3865                 if ( lineTo < lineFrom )
3866                 {
3867                     lineTo = lineFrom;
3868                     lineFrom = m_currentRow;
3869                 }
3870
3871                 SelectRows(lineFrom, lineTo, true);
3872                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3873             }
3874             else // !ctrl, !shift
3875             {
3876                 // test in the enclosing if should make it impossible
3877                 wxFAIL_MSG( wxT("how did we get here?") );
3878             }
3879         }
3880
3881         if (m_currentRow != oldCurrentRow)
3882             RefreshRow( oldCurrentRow );
3883
3884         wxDataViewColumn *oldCurrentCol = m_currentCol;
3885
3886         // Update selection here...
3887         m_currentCol = col;
3888
3889         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3890                         (current == oldCurrentRow)) && oldWasSelected;
3891
3892         // Call LeftClick after everything else as under GTK+
3893         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3894         {
3895             // notify cell about click
3896             cell->PrepareForItem(model, item, col->GetModelColumn());
3897
3898             wxRect cell_rect( xpos + expanderOffset,
3899                               GetLineStart( current ),
3900                               col->GetWidth() - expanderOffset,
3901                               GetLineHeight( current ) );
3902
3903             // Report position relative to the cell's custom area, i.e.
3904             // no the entire space as given by the control but the one
3905             // used by the renderer after calculation of alignment etc.
3906
3907             // adjust the rectangle ourselves to account for the alignment
3908             wxRect rectItem = cell_rect;
3909             const int align = cell->GetAlignment();
3910             if ( align != wxDVR_DEFAULT_ALIGNMENT )
3911             {
3912                 const wxSize size = cell->GetSize();
3913
3914                 if ( size.x >= 0 && size.x < cell_rect.width )
3915                 {
3916                     if ( align & wxALIGN_CENTER_HORIZONTAL )
3917                         rectItem.x += (cell_rect.width - size.x)/2;
3918                     else if ( align & wxALIGN_RIGHT )
3919                         rectItem.x += cell_rect.width - size.x;
3920                     // else: wxALIGN_LEFT is the default
3921                 }
3922
3923                 if ( size.y >= 0 && size.y < cell_rect.height )
3924                 {
3925                     if ( align & wxALIGN_CENTER_VERTICAL )
3926                         rectItem.y += (cell_rect.height - size.y)/2;
3927                     else if ( align & wxALIGN_BOTTOM )
3928                         rectItem.y += cell_rect.height - size.y;
3929                     // else: wxALIGN_TOP is the default
3930                 }
3931             }
3932
3933             wxPoint pos( event.GetPosition() );
3934             pos.x -= rectItem.x;
3935             pos.y -= rectItem.y;
3936
3937             m_owner->CalcUnscrolledPosition( pos.x, pos.y, &pos.x, &pos.y );
3938
3939              /* ignore ret */ cell->WXOnLeftClick( pos, cell_rect,
3940                               model, item, col->GetModelColumn());
3941         }
3942     }
3943 }
3944
3945 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3946 {
3947     m_hasFocus = true;
3948
3949     if (HasCurrentRow())
3950         Refresh();
3951
3952     event.Skip();
3953 }
3954
3955 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3956 {
3957     m_hasFocus = false;
3958
3959     if (HasCurrentRow())
3960         Refresh();
3961
3962     event.Skip();
3963 }
3964
3965 wxDataViewItem wxDataViewMainWindow::GetSelection() const
3966 {
3967     if( m_selection.GetCount() != 1 )
3968         return wxDataViewItem();
3969
3970     return GetItemByRow( m_selection.Item(0));
3971 }
3972
3973 //-----------------------------------------------------------------------------
3974 // wxDataViewCtrl
3975 //-----------------------------------------------------------------------------
3976
3977 WX_DEFINE_LIST(wxDataViewColumnList)
3978
3979 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3980 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3981     EVT_SIZE(wxDataViewCtrl::OnSize)
3982 END_EVENT_TABLE()
3983
3984 wxDataViewCtrl::~wxDataViewCtrl()
3985 {
3986     if (m_notifier)
3987         GetModel()->RemoveNotifier( m_notifier );
3988
3989     m_cols.Clear();
3990     m_colsBestWidths.clear();
3991 }
3992
3993 void wxDataViewCtrl::Init()
3994 {
3995     m_cols.DeleteContents(true);
3996     m_notifier = NULL;
3997
3998     // No sorting column at start
3999     m_sortingColumnIdx = wxNOT_FOUND;
4000
4001     m_headerArea = NULL;
4002 }
4003
4004 bool wxDataViewCtrl::Create(wxWindow *parent,
4005                             wxWindowID id,
4006                             const wxPoint& pos,
4007                             const wxSize& size,
4008                             long style,
4009                             const wxValidator& validator,
4010                             const wxString& name)
4011 {
4012 //    if ( (style & wxBORDER_MASK) == 0)
4013 //        style |= wxBORDER_SUNKEN;
4014
4015     Init();
4016
4017     if (!wxControl::Create( parent, id, pos, size,
4018                             style | wxScrolledWindowStyle, validator, name))
4019         return false;
4020
4021     SetInitialSize(size);
4022
4023 #ifdef __WXMAC__
4024     MacSetClipChildren( true );
4025 #endif
4026
4027     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4028
4029     // We use the cursor keys for moving the selection, not scrolling, so call
4030     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4031     // keyboard events forwarded to us from wxListMainWindow.
4032     DisableKeyboardScrolling();
4033
4034     if (HasFlag(wxDV_NO_HEADER))
4035         m_headerArea = NULL;
4036     else
4037         m_headerArea = new wxDataViewHeaderWindow(this);
4038
4039     SetTargetWindow( m_clientArea );
4040
4041     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4042     if (m_headerArea)
4043         sizer->Add( m_headerArea, 0, wxGROW );
4044     sizer->Add( m_clientArea, 1, wxGROW );
4045     SetSizer( sizer );
4046
4047     return true;
4048 }
4049
4050 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4051 {
4052     return wxBORDER_THEME;
4053 }
4054
4055 #ifdef __WXMSW__
4056 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4057                                         WXWPARAM wParam,
4058                                         WXLPARAM lParam)
4059 {
4060     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4061
4062 #ifndef __WXWINCE__
4063     // we need to process arrows ourselves for scrolling
4064     if ( nMsg == WM_GETDLGCODE )
4065     {
4066         rc |= DLGC_WANTARROWS;
4067     }
4068 #endif
4069
4070     return rc;
4071 }
4072 #endif
4073
4074 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4075 {
4076     wxSize newsize = size;
4077     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4078     newsize.y -= m_headerArea->GetSize().y;
4079
4080     return newsize;
4081 }
4082
4083 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4084 {
4085     // We need to override OnSize so that our scrolled
4086     // window a) does call Layout() to use sizers for
4087     // positioning the controls but b) does not query
4088     // the sizer for their size and use that for setting
4089     // the scrollable area as set that ourselves by
4090     // calling SetScrollbar() further down.
4091
4092     Layout();
4093
4094     AdjustScrollbars();
4095
4096     // We must redraw the headers if their height changed. Normally this
4097     // shouldn't happen as the control shouldn't let itself be resized beneath
4098     // its minimal height but avoid the display artefacts that appear if it
4099     // does happen, e.g. because there is really not enough vertical space.
4100     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4101             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4102     {
4103         m_headerArea->Refresh();
4104     }
4105 }
4106
4107 void wxDataViewCtrl::SetFocus()
4108 {
4109     if (m_clientArea)
4110         m_clientArea->SetFocus();
4111 }
4112
4113 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4114 {
4115     if (!wxDataViewCtrlBase::AssociateModel( model ))
4116         return false;
4117
4118     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4119
4120     model->AddNotifier( m_notifier );
4121
4122     m_clientArea->DestroyTree();
4123
4124     m_clientArea->BuildTree(model);
4125
4126     m_clientArea->UpdateDisplay();
4127
4128     return true;
4129 }
4130
4131 #if wxUSE_DRAG_AND_DROP
4132
4133 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4134 {
4135     return m_clientArea->EnableDragSource( format );
4136 }
4137
4138 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4139 {
4140     return m_clientArea->EnableDropTarget( format );
4141 }
4142
4143 #endif // wxUSE_DRAG_AND_DROP
4144
4145 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4146 {
4147     if (!wxDataViewCtrlBase::AppendColumn(col))
4148         return false;
4149
4150     m_cols.Append( col );
4151     m_colsBestWidths.push_back(0);
4152     OnColumnsCountChanged();
4153     return true;
4154 }
4155
4156 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4157 {
4158     if (!wxDataViewCtrlBase::PrependColumn(col))
4159         return false;
4160
4161     m_cols.Insert( col );
4162     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4163     OnColumnsCountChanged();
4164     return true;
4165 }
4166
4167 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4168 {
4169     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4170         return false;
4171
4172     m_cols.Insert( pos, col );
4173     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4174     OnColumnsCountChanged();
4175     return true;
4176 }
4177
4178 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4179 {
4180     if ( m_headerArea )
4181         m_headerArea->UpdateColumn(idx);
4182
4183     m_clientArea->UpdateDisplay();
4184 }
4185
4186 void wxDataViewCtrl::OnColumnsCountChanged()
4187 {
4188     if (m_headerArea)
4189         m_headerArea->SetColumnCount(GetColumnCount());
4190
4191     m_clientArea->UpdateDisplay();
4192 }
4193
4194 void wxDataViewCtrl::DoSetExpanderColumn()
4195 {
4196     m_clientArea->UpdateDisplay();
4197 }
4198
4199 void wxDataViewCtrl::DoSetIndent()
4200 {
4201     m_clientArea->UpdateDisplay();
4202 }
4203
4204 unsigned int wxDataViewCtrl::GetColumnCount() const
4205 {
4206     return m_cols.GetCount();
4207 }
4208
4209 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4210 {
4211     if ( !m_clientArea )
4212         return false;
4213
4214     m_clientArea->SetRowHeight(lineHeight);
4215
4216     return true;
4217 }
4218
4219 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4220 {
4221     return m_cols[idx];
4222 }
4223
4224 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4225 {
4226     // columns can't be reordered if there is no header window which allows
4227     // to do this
4228     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4229                                     : pos;
4230
4231     return GetColumn(idx);
4232 }
4233
4234 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4235 {
4236     const unsigned count = m_cols.size();
4237     for ( unsigned n = 0; n < count; n++ )
4238     {
4239         if ( m_cols[n] == column )
4240             return n;
4241     }
4242
4243     return wxNOT_FOUND;
4244 }
4245
4246 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4247 {
4248     if ( m_colsBestWidths[idx] != 0 )
4249         return m_colsBestWidths[idx];
4250
4251     const int count = m_clientArea->GetRowCount();
4252     wxDataViewColumn *column = GetColumn(idx);
4253     wxDataViewRenderer *renderer =
4254         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4255
4256     class MaxWidthCalculator
4257     {
4258     public:
4259         MaxWidthCalculator(wxDataViewMainWindow *clientArea,
4260                            wxDataViewRenderer *renderer,
4261                            const wxDataViewModel *model,
4262                            unsigned column)
4263             : m_width(0),
4264               m_clientArea(clientArea),
4265               m_renderer(renderer),
4266               m_model(model),
4267               m_column(column)
4268         {
4269         }
4270
4271         void UpdateWithWidth(int width)
4272         {
4273             m_width = wxMax(m_width, width);
4274         }
4275
4276         void UpdateWithRow(int row)
4277         {
4278             wxDataViewItem item = m_clientArea->GetItemByRow(row);
4279             m_renderer->PrepareForItem(m_model, item, m_column);
4280             m_width = wxMax(m_width, m_renderer->GetSize().x);
4281         }
4282
4283         int GetMaxWidth() const { return m_width; }
4284
4285     private:
4286         int m_width;
4287         wxDataViewMainWindow *m_clientArea;
4288         wxDataViewRenderer *m_renderer;
4289         const wxDataViewModel *m_model;
4290         unsigned m_column;
4291     };
4292
4293     MaxWidthCalculator calculator(m_clientArea, renderer,
4294                                   GetModel(), column->GetModelColumn());
4295
4296     if ( m_headerArea )
4297     {
4298         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4299         // Labels on native MSW header are indented on both sides
4300         header_width +=
4301             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4302         calculator.UpdateWithWidth(header_width);
4303     }
4304
4305     // The code below deserves some explanation. For very large controls, we
4306     // simply can't afford to calculate sizes for all items, it takes too
4307     // long. So the best we can do is to check the first and the last N/2
4308     // items in the control for some sufficiently large N and calculate best
4309     // sizes from that. That can result in the calculated best width being too
4310     // small for some outliers, but it's better to get slightly imperfect
4311     // result than to wait several seconds after every update. To avoid highly
4312     // visible miscalculations, we also include all currently visible items
4313     // no matter what.  Finally, the value of N is determined dynamically by
4314     // measuring how much time we spent on the determining item widths so far.
4315
4316 #if wxUSE_STOPWATCH
4317     int top_part_end = count;
4318     static const long CALC_TIMEOUT = 20/*ms*/;
4319     // don't call wxStopWatch::Time() too often
4320     static const unsigned CALC_CHECK_FREQ = 100;
4321     wxStopWatch timer;
4322 #else
4323     // use some hard-coded limit, that's the best we can do without timer
4324     int top_part_end = wxMin(500, count);
4325 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4326
4327     int row = 0;
4328
4329     for ( row = 0; row < top_part_end; row++ )
4330     {
4331 #if wxUSE_STOPWATCH
4332         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4333              timer.Time() > CALC_TIMEOUT )
4334             break;
4335 #endif // wxUSE_STOPWATCH
4336         calculator.UpdateWithRow(row);
4337     }
4338
4339     // row is the first unmeasured item now; that's our value of N/2
4340
4341     if ( row < count )
4342     {
4343         top_part_end = row;
4344
4345         // add bottom N/2 items now:
4346         const int bottom_part_start = wxMax(row, count - row);
4347         for ( row = bottom_part_start; row < count; row++ )
4348         {
4349             calculator.UpdateWithRow(row);
4350         }
4351
4352         // finally, include currently visible items in the calculation:
4353         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4354         int first_visible = m_clientArea->GetLineAt(origin.y);
4355         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4356
4357         first_visible = wxMax(first_visible, top_part_end);
4358         last_visible = wxMin(bottom_part_start, last_visible);
4359
4360         for ( row = first_visible; row < last_visible; row++ )
4361         {
4362             calculator.UpdateWithRow(row);
4363         }
4364
4365         wxLogTrace("dataview",
4366                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4367                    top_part_end,
4368                    count - bottom_part_start,
4369                    wxMax(0, last_visible - first_visible),
4370                    count);
4371     }
4372
4373     int max_width = calculator.GetMaxWidth();
4374     if ( max_width > 0 )
4375         max_width += 2 * PADDING_RIGHTLEFT;
4376
4377     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4378     return max_width;
4379 }
4380
4381 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4382                                 unsigned int WXUNUSED(new_pos))
4383 {
4384     // do _not_ reorder m_cols elements here, they should always be in the
4385     // order in which columns were added, we only display the columns in
4386     // different order
4387     m_clientArea->UpdateDisplay();
4388 }
4389
4390 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4391 {
4392     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4393     if (!ret)
4394         return false;
4395
4396     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4397     m_cols.Erase(ret);
4398     OnColumnsCountChanged();
4399
4400     return true;
4401 }
4402
4403 bool wxDataViewCtrl::ClearColumns()
4404 {
4405     m_cols.Clear();
4406     m_colsBestWidths.clear();
4407     OnColumnsCountChanged();
4408     return true;
4409 }
4410
4411 void wxDataViewCtrl::UpdateColBestWidth(int idx)
4412 {
4413     m_colsBestWidths[idx] = 0;
4414
4415     if ( m_headerArea )
4416         m_headerArea->UpdateColumn(idx);
4417 }
4418
4419 void wxDataViewCtrl::UpdateColBestWidths()
4420 {
4421     m_colsBestWidths.clear();
4422     m_colsBestWidths.resize(m_cols.size());
4423
4424     if ( m_headerArea )
4425     {
4426         const unsigned cols = m_headerArea->GetColumnCount();
4427         for ( unsigned i = 0; i < cols; i++ )
4428             m_headerArea->UpdateColumn(i);
4429     }
4430 }
4431
4432 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4433 {
4434 #if 1
4435     unsigned int len = GetColumnCount();
4436     for ( unsigned int i = 0; i < len; i++ )
4437     {
4438         wxDataViewColumn * col = GetColumnAt(i);
4439         if (column==col)
4440             return i;
4441     }
4442
4443     return wxNOT_FOUND;
4444 #else
4445     // This returns the position in pixels which is not what we want.
4446     int ret = 0,
4447         dummy = 0;
4448     unsigned int len = GetColumnCount();
4449     for ( unsigned int i = 0; i < len; i++ )
4450     {
4451         wxDataViewColumn * col = GetColumnAt(i);
4452         if (col->IsHidden())
4453             continue;
4454         ret += col->GetWidth();
4455         if (column==col)
4456         {
4457             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4458             break;
4459         }
4460     }
4461     return ret;
4462 #endif
4463 }
4464
4465 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4466 {
4467     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4468                                             : GetColumn(m_sortingColumnIdx);
4469 }
4470
4471 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4472 {
4473     return GetItemByRow(m_clientArea->GetCurrentRow());
4474 }
4475
4476 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4477 {
4478     const int row = m_clientArea->GetRowByItem(item);
4479
4480     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4481     if ( static_cast<unsigned>(row) != oldCurrent )
4482     {
4483         m_clientArea->ChangeCurrentRow(row);
4484         m_clientArea->RefreshRow(oldCurrent);
4485         m_clientArea->RefreshRow(row);
4486     }
4487 }
4488
4489 // Selection code with wxDataViewItem as parameters
4490 wxDataViewItem wxDataViewCtrl::GetSelection() const
4491 {
4492     return m_clientArea->GetSelection();
4493 }
4494
4495 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4496 {
4497     sel.Empty();
4498     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4499
4500     const size_t len = selections.size();
4501     for ( size_t i = 0; i < len; i++ )
4502     {
4503         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4504         if ( item.IsOk() )
4505         {
4506             sel.Add(item);
4507         }
4508         else
4509         {
4510             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4511         }
4512     }
4513
4514     return sel.size();
4515 }
4516
4517 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4518 {
4519     wxDataViewSelection selection(wxDataViewSelectionCmp);
4520
4521     wxDataViewItem last_parent;
4522
4523     int len = sel.GetCount();
4524     for( int i = 0; i < len; i ++ )
4525     {
4526         wxDataViewItem item = sel[i];
4527         wxDataViewItem parent = GetModel()->GetParent( item );
4528         if (parent)
4529         {
4530             if (parent != last_parent)
4531                 ExpandAncestors(item);
4532         }
4533
4534         last_parent = parent;
4535         int row = m_clientArea->GetRowByItem( item );
4536         if( row >= 0 )
4537             selection.Add( static_cast<unsigned int>(row) );
4538     }
4539
4540     m_clientArea->SetSelections( selection );
4541 }
4542
4543 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4544 {
4545     ExpandAncestors( item );
4546
4547     int row = m_clientArea->GetRowByItem( item );
4548     if( row >= 0 )
4549     {
4550         // Unselect all rows before select another in the single select mode
4551         if (m_clientArea->IsSingleSel())
4552             m_clientArea->SelectAllRows(false);
4553
4554         m_clientArea->SelectRow(row, true);
4555
4556         // Also set focus to the selected item
4557         m_clientArea->ChangeCurrentRow( row );
4558     }
4559 }
4560
4561 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4562 {
4563     int row = m_clientArea->GetRowByItem( item );
4564     if( row >= 0 )
4565         m_clientArea->SelectRow(row, false);
4566 }
4567
4568 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4569 {
4570     int row = m_clientArea->GetRowByItem( item );
4571     if( row >= 0 )
4572     {
4573         return m_clientArea->IsRowSelected(row);
4574     }
4575     return false;
4576 }
4577
4578 void wxDataViewCtrl::SelectAll()
4579 {
4580     m_clientArea->SelectAllRows(true);
4581 }
4582
4583 void wxDataViewCtrl::UnselectAll()
4584 {
4585     m_clientArea->SelectAllRows(false);
4586 }
4587
4588 void wxDataViewCtrl::EnsureVisible( int row, int column )
4589 {
4590     if( row < 0 )
4591         row = 0;
4592     if( row > (int) m_clientArea->GetRowCount() )
4593         row = m_clientArea->GetRowCount();
4594
4595     int first = m_clientArea->GetFirstVisibleRow();
4596     int last = m_clientArea->GetLastVisibleRow();
4597     if( row < first )
4598         m_clientArea->ScrollTo( row, column );
4599     else if( row > last )
4600         m_clientArea->ScrollTo( row - last + first, column );
4601     else
4602         m_clientArea->ScrollTo( first, column );
4603 }
4604
4605 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4606 {
4607     ExpandAncestors( item );
4608
4609     m_clientArea->RecalculateDisplay();
4610
4611     int row = m_clientArea->GetRowByItem(item);
4612     if( row >= 0 )
4613     {
4614         if( column == NULL )
4615             EnsureVisible(row, -1);
4616         else
4617             EnsureVisible( row, GetColumnIndex(column) );
4618     }
4619
4620 }
4621
4622 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4623                               wxDataViewColumn* &column ) const
4624 {
4625     m_clientArea->HitTest(point, item, column);
4626 }
4627
4628 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4629                                     const wxDataViewColumn* column ) const
4630 {
4631     return m_clientArea->GetItemRect(item, column);
4632 }
4633
4634 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4635 {
4636     return m_clientArea->GetItemByRow( row );
4637 }
4638
4639 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4640 {
4641     return m_clientArea->GetRowByItem( item );
4642 }
4643
4644 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4645 {
4646     ExpandAncestors( item );
4647
4648     int row = m_clientArea->GetRowByItem( item );
4649     if (row != -1)
4650         m_clientArea->Expand(row);
4651 }
4652
4653 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4654 {
4655     int row = m_clientArea->GetRowByItem( item );
4656     if (row != -1)
4657         m_clientArea->Collapse(row);
4658 }
4659
4660 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4661 {
4662     int row = m_clientArea->GetRowByItem( item );
4663     if (row != -1)
4664         return m_clientArea->IsExpanded(row);
4665     return false;
4666 }
4667
4668 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4669 {
4670     wxDataViewColumn* col = GetColumn( column );
4671     if (!col)
4672         return;
4673
4674     wxRect itemRect = GetItemRect(item, col);
4675     wxDataViewRenderer* renderer = col->GetRenderer();
4676     if (renderer->GetMode() == wxDATAVIEW_CELL_EDITABLE)
4677         renderer->StartEditing(item, itemRect);
4678 }
4679
4680 #endif // !wxUSE_GENERICDATAVIEWCTRL
4681
4682 #endif // wxUSE_DATAVIEWCTRL