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