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