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/popupwin.h"
  42 #include "wx/renderer.h"
  43 #include "wx/dcbuffer.h"
  44 #include "wx/icon.h"
  45 #include "wx/list.h"
  46 #include "wx/listimpl.cpp"
  47 #include "wx/imaglist.h"
  48 #include "wx/headerctrl.h"
  49 #include "wx/dnd.h"
  50 #include "wx/stopwatch.h"
  51
  52 //-----------------------------------------------------------------------------
  53 // classes
  54 //-----------------------------------------------------------------------------
  55
  56 class wxDataViewColumn;
  57 class wxDataViewHeaderWindow;
  58 class wxDataViewCtrl;
  59
  60 //-----------------------------------------------------------------------------
  61 // classes
  62 //-----------------------------------------------------------------------------
  63
  64 static const int SCROLL_UNIT_X = 15;
  65
  66 // the cell padding on the left/right
  67 static const int PADDING_RIGHTLEFT = 3;
  68
  69 // the expander space margin
  70 static const int EXPANDER_MARGIN = 4;
  71
  72 #ifdef __WXMSW__
  73 static const int EXPANDER_OFFSET = 4;
  74 #else
  75 static const int EXPANDER_OFFSET = 1;
  76 #endif
  77
  78 // Below is the compare stuff.
  79 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  80 // fast search when needed
  81 static wxDataViewModel* g_model;
  82 static int g_column = -2;
  83 static bool g_asending = true;
  84
  85 // ----------------------------------------------------------------------------
  86 // helper functions
  87 // ----------------------------------------------------------------------------
  88
  89 namespace
  90 {
  91
  92 // Return the expander column or, if it is not set, the first column and also
  93 // set it as the expander one for the future.
  94 wxDataViewColumn* GetExpanderColumnOrFirstOne(wxDataViewCtrl* dataview)
  95 {
  96     wxDataViewColumn* expander = dataview->GetExpanderColumn();
  97     if (!expander)
  98     {
  99         // TODO-RTL: last column for RTL support
 100         expander = dataview->GetColumnAt( 0 );
 101         dataview->SetExpanderColumn(expander);
 102     }
 103
 104     return expander;
 105 }
 106
 107 } // anonymous namespace
 108
 109 //-----------------------------------------------------------------------------
 110 // wxDataViewColumn
 111 //-----------------------------------------------------------------------------
 112
 113 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
 114 {
 115     m_width = width;
 116     m_minWidth = 0;
 117     m_align = align;
 118     m_flags = flags;
 119     m_sort = false;
 120     m_sortAscending = true;
 121 }
 122
 123 int wxDataViewColumn::GetWidth() const
 124 {
 125     switch ( m_width )
 126     {
 127         case wxCOL_WIDTH_DEFAULT:
 128             return wxDVC_DEFAULT_WIDTH;
 129
 130         case wxCOL_WIDTH_AUTOSIZE:
 131             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 132             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 133
 134         default:
 135             return m_width;
 136     }
 137 }
 138
 139 void wxDataViewColumn::UpdateDisplay()
 140 {
 141     if (m_owner)
 142     {
 143         int idx = m_owner->GetColumnIndex( this );
 144         m_owner->OnColumnChange( idx );
 145     }
 146 }
 147
 148 void wxDataViewColumn::SetSortOrder(bool ascending)
 149 {
 150     if ( !m_owner )
 151         return;
 152
 153     // First unset the old sort column if any.
 154     int oldSortKey = m_owner->GetSortingColumnIndex();
 155     if ( oldSortKey != wxNOT_FOUND )
 156     {
 157         m_owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 158     }
 159
 160     // Now set this one as the new sort column.
 161     const int idx = m_owner->GetColumnIndex(this);
 162     m_owner->SetSortingColumnIndex(idx);
 163
 164     m_sort = true;
 165     m_sortAscending = ascending;
 166
 167     // Call this directly instead of using UpdateDisplay() as we already have
 168     // the column index, no need to look it up again.
 169     m_owner->OnColumnChange(idx);
 170 }
 171
 172 //-----------------------------------------------------------------------------
 173 // wxDataViewHeaderWindow
 174 //-----------------------------------------------------------------------------
 175
 176 class wxDataViewHeaderWindow : public wxHeaderCtrl
 177 {
 178 public:
 179     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 180         : wxHeaderCtrl(parent)
 181     {
 182     }
 183
 184     wxDataViewCtrl *GetOwner() const
 185         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 186
 187 protected:
 188     // implement/override wxHeaderCtrl functions by forwarding them to the main
 189     // control
 190     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 191     {
 192         return *(GetOwner()->GetColumn(idx));
 193     }
 194
 195     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 196     {
 197         wxDataViewCtrl * const owner = GetOwner();
 198
 199         int widthContents = owner->GetBestColumnWidth(idx);
 200         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 201         owner->OnColumnChange(idx);
 202
 203         return true;
 204     }
 205
 206 private:
 207     bool SendEvent(wxEventType type, unsigned int n)
 208     {
 209         wxDataViewCtrl * const owner = GetOwner();
 210         wxDataViewEvent event(type, owner->GetId());
 211
 212         event.SetEventObject(owner);
 213         event.SetColumn(n);
 214         event.SetDataViewColumn(owner->GetColumn(n));
 215         event.SetModel(owner->GetModel());
 216
 217         // for events created by wxDataViewHeaderWindow the
 218         // row / value fields are not valid
 219         return owner->ProcessWindowEvent(event);
 220     }
 221
 222     void OnClick(wxHeaderCtrlEvent& event)
 223     {
 224         const unsigned idx = event.GetColumn();
 225
 226         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 227             return;
 228
 229         // default handling for the column click is to sort by this column or
 230         // toggle its sort order
 231         wxDataViewCtrl * const owner = GetOwner();
 232         wxDataViewColumn * const col = owner->GetColumn(idx);
 233         if ( !col->IsSortable() )
 234         {
 235             // no default handling for non-sortable columns
 236             event.Skip();
 237             return;
 238         }
 239
 240         if ( col->IsSortKey() )
 241         {
 242             // already using this column for sorting, just change the order
 243             col->ToggleSortOrder();
 244         }
 245         else // not using this column for sorting yet
 246         {
 247             col->SetSortOrder(true);
 248         }
 249
 250         wxDataViewModel * const model = owner->GetModel();
 251         if ( model )
 252             model->Resort();
 253
 254         owner->OnColumnChange(idx);
 255
 256         SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
 257     }
 258
 259     void OnRClick(wxHeaderCtrlEvent& event)
 260     {
 261         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 262                         event.GetColumn()) )
 263             event.Skip();
 264     }
 265
 266     void OnResize(wxHeaderCtrlEvent& event)
 267     {
 268         wxDataViewCtrl * const owner = GetOwner();
 269
 270         const unsigned col = event.GetColumn();
 271         owner->GetColumn(col)->SetWidth(event.GetWidth());
 272         GetOwner()->OnColumnChange(col);
 273     }
 274
 275     void OnEndReorder(wxHeaderCtrlEvent& event)
 276     {
 277         wxDataViewCtrl * const owner = GetOwner();
 278         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 279                         event.GetNewOrder());
 280     }
 281
 282     DECLARE_EVENT_TABLE()
 283     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 284 };
 285
 286 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 287     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 288     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 289
 290     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 291     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 292
 293     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 294 END_EVENT_TABLE()
 295
 296 //-----------------------------------------------------------------------------
 297 // wxDataViewRenameTimer
 298 //-----------------------------------------------------------------------------
 299
 300 class wxDataViewRenameTimer: public wxTimer
 301 {
 302 private:
 303     wxDataViewMainWindow *m_owner;
 304
 305 public:
 306     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 307     void Notify();
 308 };
 309
 310 //-----------------------------------------------------------------------------
 311 // wxDataViewTreeNode
 312 //-----------------------------------------------------------------------------
 313
 314 class wxDataViewTreeNode;
 315 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 316
 317 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 318                                            wxDataViewTreeNode ** node2);
 319
 320 class wxDataViewTreeNode
 321 {
 322 public:
 323     wxDataViewTreeNode(wxDataViewTreeNode *parent, const wxDataViewItem& item)
 324         : m_parent(parent),
 325           m_item(item),
 326           m_branchData(NULL)
 327     {
 328     }
 329
 330     ~wxDataViewTreeNode()
 331     {
 332         if ( m_branchData )
 333         {
 334             wxDataViewTreeNodes& nodes = m_branchData->children;
 335             for ( wxDataViewTreeNodes::iterator i = nodes.begin();
 336                   i != nodes.end();
 337                   ++i )
 338             {
 339                 delete *i;
 340             }
 341
 342             delete m_branchData;
 343         }
 344     }
 345
 346     static wxDataViewTreeNode* CreateRootNode()
 347     {
 348         wxDataViewTreeNode *n = new wxDataViewTreeNode(NULL, wxDataViewItem());
 349         n->SetHasChildren(true);
 350         n->m_branchData->open = true;
 351         return n;
 352     }
 353
 354     wxDataViewTreeNode * GetParent() const { return m_parent; }
 355
 356     const wxDataViewTreeNodes& GetChildNodes() const
 357     {
 358         wxASSERT( m_branchData != NULL );
 359         return m_branchData->children;
 360     }
 361
 362     void InsertChild(wxDataViewTreeNode *node, unsigned index)
 363     {
 364         if ( !m_branchData )
 365             m_branchData = new BranchNodeData;
 366
 367         m_branchData->children.Insert(node, index);
 368
 369         // TODO: insert into sorted array directly in O(log n) instead of resorting in O(n log n)
 370         if (g_column >= -1)
 371             m_branchData->children.Sort( &wxGenericTreeModelNodeCmp );
 372     }
 373
 374     void RemoveChild(wxDataViewTreeNode *node)
 375     {
 376         wxCHECK_RET( m_branchData != NULL, "leaf node doesn't have children" );
 377         m_branchData->children.Remove(node);
 378     }
 379
 380     // returns position of child node for given item in children list or wxNOT_FOUND
 381     int FindChildByItem(const wxDataViewItem& item) const
 382     {
 383         if ( !m_branchData )
 384             return wxNOT_FOUND;
 385
 386         const wxDataViewTreeNodes& nodes = m_branchData->children;
 387         const int len = nodes.size();
 388         for ( int i = 0; i < len; i++ )
 389         {
 390             if ( nodes[i]->m_item == item )
 391                 return i;
 392         }
 393         return wxNOT_FOUND;
 394     }
 395
 396     const wxDataViewItem & GetItem() const { return m_item; }
 397     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 398
 399     int GetIndentLevel() const
 400     {
 401         int ret = 0;
 402         const wxDataViewTreeNode * node = this;
 403         while( node->GetParent()->GetParent() != NULL )
 404         {
 405             node = node->GetParent();
 406             ret ++;
 407         }
 408         return ret;
 409     }
 410
 411     bool IsOpen() const
 412     {
 413         return m_branchData && m_branchData->open;
 414     }
 415
 416     void ToggleOpen()
 417     {
 418         wxCHECK_RET( m_branchData != NULL, "can't open leaf node" );
 419
 420         int sum = 0;
 421
 422         const wxDataViewTreeNodes& nodes = m_branchData->children;
 423         const int len = nodes.GetCount();
 424         for ( int i = 0;i < len; i ++)
 425             sum += 1 + nodes[i]->GetSubTreeCount();
 426
 427         if (m_branchData->open)
 428         {
 429             ChangeSubTreeCount(-sum);
 430             m_branchData->open = !m_branchData->open;
 431         }
 432         else
 433         {
 434             m_branchData->open = !m_branchData->open;
 435             ChangeSubTreeCount(+sum);
 436         }
 437     }
 438
 439     // "HasChildren" property corresponds to model's IsContainer(). Note that it may be true
 440     // even if GetChildNodes() is empty; see below.
 441     bool HasChildren() const
 442     {
 443         return m_branchData != NULL;
 444     }
 445
 446     void SetHasChildren(bool has)
 447     {
 448         if ( !has )
 449         {
 450             wxDELETE(m_branchData);
 451         }
 452         else if ( m_branchData == NULL )
 453         {
 454             m_branchData = new BranchNodeData;
 455         }
 456     }
 457
 458     int GetSubTreeCount() const
 459     {
 460         return m_branchData ? m_branchData->subTreeCount : 0;
 461     }
 462
 463     void ChangeSubTreeCount( int num )
 464     {
 465         wxASSERT( m_branchData != NULL );
 466
 467         if( !m_branchData->open )
 468             return;
 469
 470         m_branchData->subTreeCount += num;
 471         wxASSERT( m_branchData->subTreeCount >= 0 );
 472
 473         if( m_parent )
 474             m_parent->ChangeSubTreeCount(num);
 475     }
 476
 477     void Resort()
 478     {
 479         if ( !m_branchData )
 480             return;
 481
 482         if (g_column >= -1)
 483         {
 484             wxDataViewTreeNodes& nodes = m_branchData->children;
 485
 486             nodes.Sort( &wxGenericTreeModelNodeCmp );
 487             int len = nodes.GetCount();
 488             for (int i = 0; i < len; i ++)
 489             {
 490                 if ( nodes[i]->HasChildren() )
 491                     nodes[i]->Resort();
 492             }
 493         }
 494     }
 495
 496
 497 private:
 498     wxDataViewTreeNode  *m_parent;
 499
 500     // Corresponding model item.
 501     wxDataViewItem       m_item;
 502
 503     // Data specific to non-leaf (branch, inner) nodes. They are kept in a
 504     // separate struct in order to conserve memory.
 505     struct BranchNodeData
 506     {
 507         BranchNodeData()
 508             : open(false),
 509               subTreeCount(0)
 510         {
 511         }
 512
 513         // Child nodes. Note that this may be empty even if m_hasChildren in
 514         // case this branch of the tree wasn't expanded and realized yet.
 515         wxDataViewTreeNodes  children;
 516
 517         // Is the branch node currently open (expanded)?
 518         bool                 open;
 519
 520         // Total count of expanded (i.e. visible with the help of some
 521         // scrolling) items in the subtree, but excluding this node. I.e. it is
 522         // 0 for leaves and is the number of rows the subtree occupies for
 523         // branch nodes.
 524         int                  subTreeCount;
 525     };
 526
 527     BranchNodeData *m_branchData;
 528 };
 529
 530
 531 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 532                                            wxDataViewTreeNode ** node2)
 533 {
 534     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 535 }
 536
 537
 538 //-----------------------------------------------------------------------------
 539 // wxDataViewMainWindow
 540 //-----------------------------------------------------------------------------
 541
 542 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
 543
 544 class wxDataViewMainWindow: public wxWindow
 545 {
 546 public:
 547     wxDataViewMainWindow( wxDataViewCtrl *parent,
 548                             wxWindowID id,
 549                             const wxPoint &pos = wxDefaultPosition,
 550                             const wxSize &size = wxDefaultSize,
 551                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 552     virtual ~wxDataViewMainWindow();
 553
 554     bool IsList() const { return GetModel()->IsListModel(); }
 555     bool IsVirtualList() const { return m_root == NULL; }
 556
 557     // notifications from wxDataViewModel
 558     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 559     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 560     bool ItemChanged( const wxDataViewItem &item );
 561     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 562     bool Cleared();
 563     void Resort()
 564     {
 565         if (!IsVirtualList())
 566         {
 567             SortPrepare();
 568             m_root->Resort();
 569         }
 570         UpdateDisplay();
 571     }
 572
 573     void SortPrepare()
 574     {
 575         g_model = GetModel();
 576         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 577         if( !col )
 578         {
 579             if (g_model->HasDefaultCompare())
 580                 g_column = -1;
 581             else
 582                 g_column = -2;
 583
 584             g_asending = true;
 585             return;
 586         }
 587         g_column = col->GetModelColumn();
 588         g_asending = col->IsSortOrderAscending();
 589     }
 590
 591     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 592     wxDataViewCtrl *GetOwner() { return m_owner; }
 593     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 594
 595     wxDataViewModel* GetModel() { return GetOwner()->GetModel(); }
 596     const wxDataViewModel* GetModel() const { return GetOwner()->GetModel(); }
 597
 598 #if wxUSE_DRAG_AND_DROP
 599     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 600 #endif // wxUSE_DRAG_AND_DROP
 601     void OnPaint( wxPaintEvent &event );
 602     void OnChar( wxKeyEvent &event );
 603     void OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event);
 604     void OnLeftKey();
 605     void OnRightKey();
 606     void OnMouse( wxMouseEvent &event );
 607     void OnSetFocus( wxFocusEvent &event );
 608     void OnKillFocus( wxFocusEvent &event );
 609
 610     void UpdateDisplay();
 611     void RecalculateDisplay();
 612     void OnInternalIdle();
 613
 614     void OnRenameTimer();
 615
 616     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 617     void ScrollTo( int rows, int column );
 618
 619     unsigned GetCurrentRow() const { return m_currentRow; }
 620     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 621     void ChangeCurrentRow( unsigned int row );
 622     bool TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward);
 623
 624     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 625     bool IsEmpty() { return GetRowCount() == 0; }
 626
 627     int GetCountPerPage() const;
 628     int GetEndOfLastCol() const;
 629     unsigned int GetFirstVisibleRow() const;
 630
 631     // I change this method to un const because in the tree view,
 632     // the displaying number of the tree are changing along with the
 633     // expanding/collapsing of the tree nodes
 634     unsigned int GetLastVisibleRow();
 635     unsigned int GetRowCount();
 636
 637     const wxDataViewSelection& GetSelections() const { return m_selection; }
 638     void SetSelections( const wxDataViewSelection & sel )
 639         { m_selection = sel; UpdateDisplay(); }
 640     void Select( const wxArrayInt& aSelections );
 641     void SelectAllRows( bool on );
 642     void SelectRow( unsigned int row, bool on );
 643     void SelectRows( unsigned int from, unsigned int to, bool on );
 644     void ReverseRowSelection( unsigned int row );
 645     bool IsRowSelected( unsigned int row );
 646     void SendSelectionChangedEvent( const wxDataViewItem& item);
 647
 648     void RefreshRow( unsigned int row );
 649     void RefreshRows( unsigned int from, unsigned int to );
 650     void RefreshRowsAfter( unsigned int firstRow );
 651
 652     // returns the colour to be used for drawing the rules
 653     wxColour GetRuleColour() const
 654     {
 655         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 656     }
 657
 658     wxRect GetLineRect( unsigned int row ) const;
 659
 660     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 661     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 662     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 663
 664     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 665     int GetRowHeight() const { return m_lineHeight; }
 666
 667     // Some useful functions for row and item mapping
 668     wxDataViewItem GetItemByRow( unsigned int row ) const;
 669     int GetRowByItem( const wxDataViewItem & item ) const;
 670
 671     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 672     // We did not need this temporarily
 673     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 674
 675     // Methods for building the mapping tree
 676     void BuildTree( wxDataViewModel  * model );
 677     void DestroyTree();
 678     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 679     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 680
 681     void Expand( unsigned int row );
 682     void Collapse( unsigned int row );
 683     bool IsExpanded( unsigned int row ) const;
 684     bool HasChildren( unsigned int row ) const;
 685
 686 #if wxUSE_DRAG_AND_DROP
 687     bool EnableDragSource( const wxDataFormat &format );
 688     bool EnableDropTarget( const wxDataFormat &format );
 689
 690     void RemoveDropHint();
 691     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 692     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 693     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 694     void OnLeave();
 695 #endif // wxUSE_DRAG_AND_DROP
 696
 697     void OnColumnsCountChanged();
 698
 699 private:
 700     int RecalculateCount();
 701
 702     // Return false only if the event was vetoed by its handler.
 703     bool SendExpanderEvent(wxEventType type, const wxDataViewItem& item);
 704
 705     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 706
 707     wxDataViewColumn *FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode);
 708
 709 private:
 710     wxDataViewCtrl             *m_owner;
 711     int                         m_lineHeight;
 712     bool                        m_dirty;
 713
 714     wxDataViewColumn           *m_currentCol;
 715     unsigned int                m_currentRow;
 716     wxDataViewSelection         m_selection;
 717
 718     wxDataViewRenameTimer      *m_renameTimer;
 719     bool                        m_lastOnSame;
 720
 721     bool                        m_hasFocus;
 722     bool                        m_useCellFocus;
 723     bool                        m_currentColSetByKeyboard;
 724
 725 #if wxUSE_DRAG_AND_DROP
 726     int                         m_dragCount;
 727     wxPoint                     m_dragStart;
 728
 729     bool                        m_dragEnabled;
 730     wxDataFormat                m_dragFormat;
 731
 732     bool                        m_dropEnabled;
 733     wxDataFormat                m_dropFormat;
 734     bool                        m_dropHint;
 735     unsigned int                m_dropHintLine;
 736 #endif // wxUSE_DRAG_AND_DROP
 737
 738     // for double click logic
 739     unsigned int m_lineLastClicked,
 740         m_lineBeforeLastClicked,
 741         m_lineSelectSingleOnUp;
 742
 743     // the pen used to draw horiz/vertical rules
 744     wxPen m_penRule;
 745
 746     // the pen used to draw the expander and the lines
 747     wxPen m_penExpander;
 748
 749     // This is the tree structure of the model
 750     wxDataViewTreeNode * m_root;
 751     int m_count;
 752
 753     // This is the tree node under the cursor
 754     wxDataViewTreeNode * m_underMouse;
 755
 756 private:
 757     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 758     DECLARE_EVENT_TABLE()
 759 };
 760
 761 // ---------------------------------------------------------
 762 // wxGenericDataViewModelNotifier
 763 // ---------------------------------------------------------
 764
 765 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 766 {
 767 public:
 768     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 769         { m_mainWindow = mainWindow; }
 770
 771     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 772         { return m_mainWindow->ItemAdded( parent , item ); }
 773     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 774         { return m_mainWindow->ItemDeleted( parent, item ); }
 775     virtual bool ItemChanged( const wxDataViewItem & item )
 776         { return m_mainWindow->ItemChanged(item);  }
 777     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 778         { return m_mainWindow->ValueChanged( item, col ); }
 779     virtual bool Cleared()
 780         { return m_mainWindow->Cleared(); }
 781     virtual void Resort()
 782         { m_mainWindow->Resort(); }
 783
 784     wxDataViewMainWindow    *m_mainWindow;
 785 };
 786
 787 // ---------------------------------------------------------
 788 // wxDataViewRenderer
 789 // ---------------------------------------------------------
 790
 791 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 792
 793 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 794                                         wxDataViewCellMode mode,
 795                                         int align) :
 796     wxDataViewCustomRendererBase( varianttype, mode, align )
 797 {
 798     m_align = align;
 799     m_mode = mode;
 800     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 801     m_dc = NULL;
 802 }
 803
 804 wxDataViewRenderer::~wxDataViewRenderer()
 805 {
 806     delete m_dc;
 807 }
 808
 809 wxDC *wxDataViewRenderer::GetDC()
 810 {
 811     if (m_dc == NULL)
 812     {
 813         if (GetOwner() == NULL)
 814             return NULL;
 815         if (GetOwner()->GetOwner() == NULL)
 816             return NULL;
 817         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 818     }
 819
 820     return m_dc;
 821 }
 822
 823 void wxDataViewRenderer::SetAlignment( int align )
 824 {
 825     m_align=align;
 826 }
 827
 828 int wxDataViewRenderer::GetAlignment() const
 829 {
 830     return m_align;
 831 }
 832
 833 // ---------------------------------------------------------
 834 // wxDataViewCustomRenderer
 835 // ---------------------------------------------------------
 836
 837 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 838
 839 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 840                         wxDataViewCellMode mode, int align ) :
 841     wxDataViewRenderer( varianttype, mode, align )
 842 {
 843 }
 844
 845 // ---------------------------------------------------------
 846 // wxDataViewTextRenderer
 847 // ---------------------------------------------------------
 848
 849 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 850
 851 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 852                                                 wxDataViewCellMode mode, int align ) :
 853     wxDataViewRenderer( varianttype, mode, align )
 854 {
 855 }
 856
 857 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 858 {
 859     m_text = value.GetString();
 860
 861     return true;
 862 }
 863
 864 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 865 {
 866     return false;
 867 }
 868
 869 bool wxDataViewTextRenderer::HasEditorCtrl() const
 870 {
 871     return true;
 872 }
 873
 874 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 875         wxRect labelRect, const wxVariant &value )
 876 {
 877     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 878                                        wxPoint(labelRect.x,labelRect.y),
 879                                        wxSize(labelRect.width,labelRect.height),
 880                                        wxTE_PROCESS_ENTER );
 881
 882     // select the text in the control an place the cursor at the end
 883     ctrl->SetInsertionPointEnd();
 884     ctrl->SelectAll();
 885
 886     return ctrl;
 887 }
 888
 889 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 890 {
 891     wxTextCtrl *text = (wxTextCtrl*) editor;
 892     value = text->GetValue();
 893     return true;
 894 }
 895
 896 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 897 {
 898     RenderText(m_text, 0, rect, dc, state);
 899     return true;
 900 }
 901
 902 wxSize wxDataViewTextRenderer::GetSize() const
 903 {
 904     if (!m_text.empty())
 905         return GetTextExtent(m_text);
 906     else
 907         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 908 }
 909
 910 // ---------------------------------------------------------
 911 // wxDataViewBitmapRenderer
 912 // ---------------------------------------------------------
 913
 914 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 915
 916 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 917                                                     wxDataViewCellMode mode, int align ) :
 918     wxDataViewRenderer( varianttype, mode, align )
 919 {
 920 }
 921
 922 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 923 {
 924     if (value.GetType() == wxT("wxBitmap"))
 925         m_bitmap << value;
 926     if (value.GetType() == wxT("wxIcon"))
 927         m_icon << value;
 928
 929     return true;
 930 }
 931
 932 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 933 {
 934     return false;
 935 }
 936
 937 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 938 {
 939     if (m_bitmap.IsOk())
 940         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 941     else if (m_icon.IsOk())
 942         dc->DrawIcon( m_icon, cell.x, cell.y );
 943
 944     return true;
 945 }
 946
 947 wxSize wxDataViewBitmapRenderer::GetSize() const
 948 {
 949     if (m_bitmap.IsOk())
 950         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 951     else if (m_icon.IsOk())
 952         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 953
 954     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 955 }
 956
 957 // ---------------------------------------------------------
 958 // wxDataViewToggleRenderer
 959 // ---------------------------------------------------------
 960
 961 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 962
 963 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 964                         wxDataViewCellMode mode, int align ) :
 965     wxDataViewRenderer( varianttype, mode, align )
 966 {
 967     m_toggle = false;
 968 }
 969
 970 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 971 {
 972     m_toggle = value.GetBool();
 973
 974     return true;
 975 }
 976
 977 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 978 {
 979     return false;
 980 }
 981
 982 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 983 {
 984     int flags = 0;
 985     if (m_toggle)
 986         flags |= wxCONTROL_CHECKED;
 987     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
 988         GetEnabled() == false)
 989         flags |= wxCONTROL_DISABLED;
 990
 991     // check boxes we draw must always have the same, standard size (if it's
 992     // bigger than the cell size the checkbox will be truncated because the
 993     // caller had set the clipping rectangle to prevent us from drawing outside
 994     // the cell)
 995     cell.SetSize(GetSize());
 996
 997     wxRendererNative::Get().DrawCheckBox(
 998             GetOwner()->GetOwner(),
 999             *dc,
1000             cell,
1001             flags );
1002
1003     return true;
1004 }
1005
1006 bool wxDataViewToggleRenderer::WXActivateCell(const wxRect& WXUNUSED(cell),
1007                                               wxDataViewModel *model,
1008                                               const wxDataViewItem& item,
1009                                               unsigned int col,
1010                                               const wxMouseEvent *mouseEvent)
1011 {
1012     if ( !model->IsEnabled(item, col) )
1013         return false;
1014
1015     if ( mouseEvent )
1016     {
1017         // only react to clicks directly on the checkbox, not elsewhere in the same cell:
1018         if ( !wxRect(GetSize()).Contains(mouseEvent->GetPosition()) )
1019             return false;
1020     }
1021
1022     model->ChangeValue(!m_toggle, item, col);
1023     return true;
1024 }
1025
1026 wxSize wxDataViewToggleRenderer::GetSize() const
1027 {
1028     // the window parameter is not used by GetCheckBoxSize() so it's
1029     // safe to pass NULL
1030     return wxRendererNative::Get().GetCheckBoxSize(NULL);
1031 }
1032
1033 // ---------------------------------------------------------
1034 // wxDataViewProgressRenderer
1035 // ---------------------------------------------------------
1036
1037 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
1038
1039 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
1040     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1041     wxDataViewRenderer( varianttype, mode, align )
1042 {
1043     m_label = label;
1044     m_value = 0;
1045 }
1046
1047 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
1048 {
1049     m_value = (long) value;
1050
1051     if (m_value < 0) m_value = 0;
1052     if (m_value > 100) m_value = 100;
1053
1054     return true;
1055 }
1056
1057 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
1058 {
1059     value = (long) m_value;
1060     return true;
1061 }
1062
1063 bool
1064 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
1065 {
1066     // deflate the rect to leave a small border between bars in adjacent rows
1067     wxRect bar = rect.Deflate(0, 1);
1068
1069     dc->SetBrush( *wxTRANSPARENT_BRUSH );
1070     dc->SetPen( *wxBLACK_PEN );
1071     dc->DrawRectangle( bar );
1072
1073     bar.width = (int)(bar.width * m_value / 100.);
1074     dc->SetPen( *wxTRANSPARENT_PEN );
1075
1076     const wxDataViewItemAttr& attr = GetAttr();
1077     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
1078                                   : *wxBLUE_BRUSH );
1079     dc->DrawRectangle( bar );
1080
1081     return true;
1082 }
1083
1084 wxSize wxDataViewProgressRenderer::GetSize() const
1085 {
1086     return wxSize(40,12);
1087 }
1088
1089 // ---------------------------------------------------------
1090 // wxDataViewIconTextRenderer
1091 // ---------------------------------------------------------
1092
1093 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1094
1095 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1096 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1097     wxDataViewRenderer( varianttype, mode, align )
1098 {
1099     SetMode(mode);
1100     SetAlignment(align);
1101 }
1102
1103 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1104 {
1105     m_value << value;
1106     return true;
1107 }
1108
1109 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1110 {
1111     return false;
1112 }
1113
1114 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1115 {
1116     int xoffset = 0;
1117
1118     const wxIcon& icon = m_value.GetIcon();
1119     if ( icon.IsOk() )
1120     {
1121         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1122         xoffset = icon.GetWidth()+4;
1123     }
1124
1125     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1126
1127     return true;
1128 }
1129
1130 wxSize wxDataViewIconTextRenderer::GetSize() const
1131 {
1132     if (!m_value.GetText().empty())
1133     {
1134         wxSize size = GetTextExtent(m_value.GetText());
1135
1136         if (m_value.GetIcon().IsOk())
1137             size.x += m_value.GetIcon().GetWidth() + 4;
1138         return size;
1139     }
1140     return wxSize(80,20);
1141 }
1142
1143 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1144 {
1145     wxDataViewIconText iconText;
1146     iconText << value;
1147
1148     wxString text = iconText.GetText();
1149
1150     // adjust the label rect to take the width of the icon into account
1151     if (iconText.GetIcon().IsOk())
1152     {
1153         int w = iconText.GetIcon().GetWidth() + 4;
1154         labelRect.x += w;
1155         labelRect.width -= w;
1156     }
1157
1158     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1159                                        wxPoint(labelRect.x,labelRect.y),
1160                                        wxSize(labelRect.width,labelRect.height),
1161                                        wxTE_PROCESS_ENTER );
1162
1163     // select the text in the control an place the cursor at the end
1164     ctrl->SetInsertionPointEnd();
1165     ctrl->SelectAll();
1166
1167     return ctrl;
1168 }
1169
1170 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1171 {
1172     wxTextCtrl *text = (wxTextCtrl*) editor;
1173
1174     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1175     value << iconText;
1176     return true;
1177 }
1178
1179 //-----------------------------------------------------------------------------
1180 // wxDataViewDropTarget
1181 //-----------------------------------------------------------------------------
1182
1183 #if wxUSE_DRAG_AND_DROP
1184
1185 class wxBitmapCanvas: public wxWindow
1186 {
1187 public:
1188     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1189     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1190     {
1191         m_bitmap = bitmap;
1192         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1193     }
1194
1195     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1196     {
1197         wxPaintDC dc(this);
1198         dc.DrawBitmap( m_bitmap, 0, 0);
1199     }
1200
1201     wxBitmap m_bitmap;
1202 };
1203
1204 class wxDataViewDropSource: public wxDropSource
1205 {
1206 public:
1207     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1208         wxDropSource( win )
1209     {
1210         m_win = win;
1211         m_row = row;
1212         m_hint = NULL;
1213     }
1214
1215     ~wxDataViewDropSource()
1216     {
1217         delete m_hint;
1218     }
1219
1220     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1221     {
1222         wxPoint pos = wxGetMousePosition();
1223
1224         if (!m_hint)
1225         {
1226             int liney = m_win->GetLineStart( m_row );
1227             int linex = 0;
1228             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1229             m_win->ClientToScreen( &linex, &liney );
1230             m_dist_x = pos.x - linex;
1231             m_dist_y = pos.y - liney;
1232
1233             int indent = 0;
1234             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1235             m_dist_x -= indent;
1236             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1237                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1238                                         ib.GetSize(),
1239                                         wxFRAME_TOOL_WINDOW |
1240                                         wxFRAME_FLOAT_ON_PARENT |
1241                                         wxFRAME_NO_TASKBAR |
1242                                         wxNO_BORDER );
1243             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1244             m_hint->Show();
1245         }
1246         else
1247         {
1248             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1249             m_hint->SetTransparent( 128 );
1250         }
1251
1252         return false;
1253     }
1254
1255     wxDataViewMainWindow   *m_win;
1256     unsigned int            m_row;
1257     wxFrame                *m_hint;
1258     int m_dist_x,m_dist_y;
1259 };
1260
1261
1262 class wxDataViewDropTarget: public wxDropTarget
1263 {
1264 public:
1265     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1266         wxDropTarget( obj )
1267     {
1268         m_win = win;
1269     }
1270
1271     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1272     {
1273         wxDataFormat format = GetMatchingPair();
1274         if (format == wxDF_INVALID)
1275             return wxDragNone;
1276         return m_win->OnDragOver( format, x, y, def);
1277     }
1278
1279     virtual bool OnDrop( wxCoord x, wxCoord y )
1280     {
1281         wxDataFormat format = GetMatchingPair();
1282         if (format == wxDF_INVALID)
1283             return false;
1284         return m_win->OnDrop( format, x, y );
1285     }
1286
1287     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1288     {
1289         wxDataFormat format = GetMatchingPair();
1290         if (format == wxDF_INVALID)
1291             return wxDragNone;
1292         if (!GetData())
1293             return wxDragNone;
1294         return m_win->OnData( format, x, y, def );
1295     }
1296
1297     virtual void OnLeave()
1298         { m_win->OnLeave(); }
1299
1300     wxDataViewMainWindow   *m_win;
1301 };
1302
1303 #endif // wxUSE_DRAG_AND_DROP
1304
1305 //-----------------------------------------------------------------------------
1306 // wxDataViewRenameTimer
1307 //-----------------------------------------------------------------------------
1308
1309 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1310 {
1311     m_owner = owner;
1312 }
1313
1314 void wxDataViewRenameTimer::Notify()
1315 {
1316     m_owner->OnRenameTimer();
1317 }
1318
1319 //-----------------------------------------------------------------------------
1320 // wxDataViewMainWindow
1321 //-----------------------------------------------------------------------------
1322
1323 // The tree building helper, declared firstly
1324 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1325                              wxDataViewTreeNode * node);
1326
1327 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1328 {
1329     if (row1 > row2) return 1;
1330     if (row1 == row2) return 0;
1331     return -1;
1332 }
1333
1334 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1335
1336 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1337     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1338     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1339     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1340     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1341     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1342 END_EVENT_TABLE()
1343
1344 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1345     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1346     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1347     m_selection( wxDataViewSelectionCmp )
1348
1349 {
1350     SetOwner( parent );
1351
1352     m_lastOnSame = false;
1353     m_renameTimer = new wxDataViewRenameTimer( this );
1354
1355     // TODO: user better initial values/nothing selected
1356     m_currentCol = NULL;
1357     m_currentColSetByKeyboard = false;
1358     m_useCellFocus = false;
1359     m_currentRow = 0;
1360
1361     m_lineHeight = wxMax( 17, GetCharHeight() + 4 ); // 17 = mini icon height + 1
1362
1363 #if wxUSE_DRAG_AND_DROP
1364     m_dragCount = 0;
1365     m_dragStart = wxPoint(0,0);
1366
1367     m_dragEnabled = false;
1368     m_dropEnabled = false;
1369     m_dropHint = false;
1370     m_dropHintLine = (unsigned int) -1;
1371 #endif // wxUSE_DRAG_AND_DROP
1372
1373     m_lineLastClicked = (unsigned int) -1;
1374     m_lineBeforeLastClicked = (unsigned int) -1;
1375     m_lineSelectSingleOnUp = (unsigned int) -1;
1376
1377     m_hasFocus = false;
1378
1379     SetBackgroundColour( *wxWHITE );
1380
1381     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1382
1383     m_penRule = wxPen(GetRuleColour());
1384
1385     // compose a pen whichcan draw black lines
1386     // TODO: maybe there is something system colour to use
1387     m_penExpander = wxPen(wxColour(0,0,0));
1388
1389     m_root = wxDataViewTreeNode::CreateRootNode();
1390
1391     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1392     m_count = -1;
1393     m_underMouse = NULL;
1394     UpdateDisplay();
1395 }
1396
1397 wxDataViewMainWindow::~wxDataViewMainWindow()
1398 {
1399     DestroyTree();
1400     delete m_renameTimer;
1401 }
1402
1403
1404 #if wxUSE_DRAG_AND_DROP
1405 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1406 {
1407     m_dragFormat = format;
1408     m_dragEnabled = format != wxDF_INVALID;
1409
1410     return true;
1411 }
1412
1413 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1414 {
1415     m_dropFormat = format;
1416     m_dropEnabled = format != wxDF_INVALID;
1417
1418     if (m_dropEnabled)
1419         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1420
1421     return true;
1422 }
1423
1424 void wxDataViewMainWindow::RemoveDropHint()
1425 {
1426     if (m_dropHint)
1427     {
1428             m_dropHint = false;
1429             RefreshRow( m_dropHintLine );
1430             m_dropHintLine = (unsigned int) -1;
1431     }
1432 }
1433
1434 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1435                                                wxCoord y, wxDragResult def )
1436 {
1437     int xx = x;
1438     int yy = y;
1439     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1440     unsigned int row = GetLineAt( yy );
1441
1442     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1443     {
1444         RemoveDropHint();
1445         return wxDragNone;
1446     }
1447
1448     wxDataViewItem item = GetItemByRow( row );
1449
1450     wxDataViewModel *model = GetModel();
1451
1452     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1453     event.SetEventObject( m_owner );
1454     event.SetItem( item );
1455     event.SetModel( model );
1456     event.SetDataFormat( format );
1457     if (!m_owner->HandleWindowEvent( event ))
1458     {
1459         RemoveDropHint();
1460         return wxDragNone;
1461     }
1462
1463     if (!event.IsAllowed())
1464     {
1465         RemoveDropHint();
1466         return wxDragNone;
1467     }
1468
1469
1470     if (m_dropHint && (row != m_dropHintLine))
1471         RefreshRow( m_dropHintLine );
1472     m_dropHint = true;
1473     m_dropHintLine = row;
1474     RefreshRow( row );
1475
1476     return def;
1477 }
1478
1479 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1480 {
1481     RemoveDropHint();
1482
1483     int xx = x;
1484     int yy = y;
1485     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1486     unsigned int row = GetLineAt( yy );
1487
1488     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1489         return false;
1490
1491     wxDataViewItem item = GetItemByRow( row );
1492
1493     wxDataViewModel *model = GetModel();
1494
1495     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1496     event.SetEventObject( m_owner );
1497     event.SetItem( item );
1498     event.SetModel( model );
1499     event.SetDataFormat( format );
1500     if (!m_owner->HandleWindowEvent( event ))
1501         return false;
1502
1503     if (!event.IsAllowed())
1504         return false;
1505
1506     return true;
1507 }
1508
1509 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1510                                            wxDragResult def )
1511 {
1512     int xx = x;
1513     int yy = y;
1514     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1515     unsigned int row = GetLineAt( yy );
1516
1517     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1518         return wxDragNone;
1519
1520     wxDataViewItem item = GetItemByRow( row );
1521
1522     wxDataViewModel *model = GetModel();
1523
1524     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1525
1526     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1527     event.SetEventObject( m_owner );
1528     event.SetItem( item );
1529     event.SetModel( model );
1530     event.SetDataFormat( format );
1531     event.SetDataSize( obj->GetSize() );
1532     event.SetDataBuffer( obj->GetData() );
1533     if (!m_owner->HandleWindowEvent( event ))
1534         return wxDragNone;
1535
1536     if (!event.IsAllowed())
1537         return wxDragNone;
1538
1539     return def;
1540 }
1541
1542 void wxDataViewMainWindow::OnLeave()
1543 {
1544     RemoveDropHint();
1545 }
1546
1547 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1548 {
1549     int height = GetLineHeight( row );
1550     int width = 0;
1551     unsigned int cols = GetOwner()->GetColumnCount();
1552     unsigned int col;
1553     for (col = 0; col < cols; col++)
1554     {
1555         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1556         if (column->IsHidden())
1557             continue;      // skip it!
1558         width += column->GetWidth();
1559     }
1560
1561     indent = 0;
1562     if (!IsList())
1563     {
1564         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1565         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1566         indent = indent + m_lineHeight;
1567             // try to use the m_lineHeight as the expander space
1568     }
1569     width -= indent;
1570
1571     wxBitmap bitmap( width, height );
1572     wxMemoryDC dc( bitmap );
1573     dc.SetFont( GetFont() );
1574     dc.SetPen( *wxBLACK_PEN );
1575     dc.SetBrush( *wxWHITE_BRUSH );
1576     dc.DrawRectangle( 0,0,width,height );
1577
1578     wxDataViewModel *model = m_owner->GetModel();
1579
1580     wxDataViewColumn * const
1581         expander = GetExpanderColumnOrFirstOne(GetOwner());
1582
1583     int x = 0;
1584     for (col = 0; col < cols; col++)
1585     {
1586         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1587         wxDataViewRenderer *cell = column->GetRenderer();
1588
1589         if (column->IsHidden())
1590             continue;       // skip it!
1591
1592         width = column->GetWidth();
1593
1594         if (column == expander)
1595             width -= indent;
1596
1597         wxDataViewItem item = GetItemByRow( row );
1598         cell->PrepareForItem(model, item, column->GetModelColumn());
1599
1600         wxRect item_rect(x, 0, width, height);
1601         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1602
1603         // dc.SetClippingRegion( item_rect );
1604         cell->WXCallRender(item_rect, &dc, 0);
1605         // dc.DestroyClippingRegion();
1606
1607         x += width;
1608     }
1609
1610     return bitmap;
1611 }
1612
1613 #endif // wxUSE_DRAG_AND_DROP
1614
1615
1616 // Draw focus rect for individual cell. Unlike native focus rect, we render
1617 // this in foreground text color (typically white) to enhance contrast and
1618 // make it visible.
1619 static void DrawSelectedCellFocusRect(wxDC& dc, const wxRect& rect)
1620 {
1621     // (This code is based on wxRendererGeneric::DrawFocusRect and modified.)
1622
1623     // draw the pixels manually because the "dots" in wxPen with wxDOT style
1624     // may be short traits and not really dots
1625     //
1626     // note that to behave in the same manner as DrawRect(), we must exclude
1627     // the bottom and right borders from the rectangle
1628     wxCoord x1 = rect.GetLeft(),
1629             y1 = rect.GetTop(),
1630             x2 = rect.GetRight(),
1631             y2 = rect.GetBottom();
1632
1633     wxDCPenChanger pen(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
1634
1635     wxCoord z;
1636     for ( z = x1 + 1; z < x2; z += 2 )
1637         dc.DrawPoint(z, rect.GetTop());
1638
1639     wxCoord shift = z == x2 ? 0 : 1;
1640     for ( z = y1 + shift; z < y2; z += 2 )
1641         dc.DrawPoint(x2, z);
1642
1643     shift = z == y2 ? 0 : 1;
1644     for ( z = x2 - shift; z > x1; z -= 2 )
1645         dc.DrawPoint(z, y2);
1646
1647     shift = z == x1 ? 0 : 1;
1648     for ( z = y2 - shift; z > y1; z -= 2 )
1649         dc.DrawPoint(x1, z);
1650 }
1651
1652
1653 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1654 {
1655     wxDataViewModel *model = GetModel();
1656     wxAutoBufferedPaintDC dc( this );
1657
1658 #ifdef __WXMSW__
1659     dc.SetBrush(GetOwner()->GetBackgroundColour());
1660     dc.SetPen( *wxTRANSPARENT_PEN );
1661     dc.DrawRectangle(GetClientSize());
1662 #endif
1663
1664     if ( IsEmpty() )
1665     {
1666         // No items to draw.
1667         return;
1668     }
1669
1670     // prepare the DC
1671     GetOwner()->PrepareDC( dc );
1672     dc.SetFont( GetFont() );
1673
1674     wxRect update = GetUpdateRegion().GetBox();
1675     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1676
1677     // compute which items needs to be redrawn
1678     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1679     unsigned int item_count =
1680         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1681             (int)(GetRowCount( ) - item_start));
1682     unsigned int item_last = item_start + item_count;
1683
1684     // Send the event to wxDataViewCtrl itself.
1685     wxWindow * const parent = GetParent();
1686     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1687     cache_event.SetEventObject(parent);
1688     cache_event.SetCache(item_start, item_last - 1);
1689     parent->ProcessWindowEvent(cache_event);
1690
1691     // compute which columns needs to be redrawn
1692     unsigned int cols = GetOwner()->GetColumnCount();
1693     if ( !cols )
1694     {
1695         // we assume that we have at least one column below and painting an
1696         // empty control is unnecessary anyhow
1697         return;
1698     }
1699
1700     unsigned int col_start = 0;
1701     unsigned int x_start;
1702     for (x_start = 0; col_start < cols; col_start++)
1703     {
1704         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1705         if (col->IsHidden())
1706             continue;      // skip it!
1707
1708         unsigned int w = col->GetWidth();
1709         if (x_start+w >= (unsigned int)update.x)
1710             break;
1711
1712         x_start += w;
1713     }
1714
1715     unsigned int col_last = col_start;
1716     unsigned int x_last = x_start;
1717     for (; col_last < cols; col_last++)
1718     {
1719         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1720         if (col->IsHidden())
1721             continue;      // skip it!
1722
1723         if (x_last > (unsigned int)update.GetRight())
1724             break;
1725
1726         x_last += col->GetWidth();
1727     }
1728
1729     // Draw horizontal rules if required
1730     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1731     {
1732         dc.SetPen(m_penRule);
1733         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1734
1735         for (unsigned int i = item_start; i <= item_last; i++)
1736         {
1737             int y = GetLineStart( i );
1738             dc.DrawLine(x_start, y, x_last, y);
1739         }
1740     }
1741
1742     // Draw vertical rules if required
1743     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1744     {
1745         dc.SetPen(m_penRule);
1746         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1747
1748         // NB: Vertical rules are drawn in the last pixel of a column so that
1749         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1750         //     consistency with MSW native list control. There's no vertical
1751         //     rule at the most-left side of the control.
1752
1753         int x = x_start - 1;
1754         for (unsigned int i = col_start; i < col_last; i++)
1755         {
1756             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1757             if (col->IsHidden())
1758                 continue;       // skip it
1759
1760             x += col->GetWidth();
1761
1762             dc.DrawLine(x, GetLineStart( item_start ),
1763                         x, GetLineStart( item_last ) );
1764         }
1765     }
1766
1767     // redraw the background for the items which are selected/current
1768     for (unsigned int item = item_start; item < item_last; item++)
1769     {
1770         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1771
1772         if (selected || item == m_currentRow)
1773         {
1774             wxRect rect( x_start, GetLineStart( item ),
1775                          x_last - x_start, GetLineHeight( item ) );
1776
1777             // draw selection and whole-item focus:
1778             if ( selected )
1779             {
1780                 int flags = wxCONTROL_SELECTED;
1781                 if (m_hasFocus)
1782                     flags |= wxCONTROL_FOCUSED;
1783
1784                 wxRendererNative::Get().DrawItemSelectionRect
1785                                     (
1786                                         this,
1787                                         dc,
1788                                         rect,
1789                                         flags
1790                                     );
1791             }
1792
1793             // draw keyboard focus rect if applicable
1794             if ( item == m_currentRow && m_hasFocus )
1795             {
1796                 bool renderColumnFocus = false;
1797
1798                 if ( m_useCellFocus && m_currentCol && m_currentColSetByKeyboard )
1799                 {
1800                     renderColumnFocus = true;
1801
1802                     // If this is container node without columns, render full-row focus:
1803                     if ( !IsList() )
1804                     {
1805                         wxDataViewTreeNode *node = GetTreeNodeByRow(item);
1806                         if ( node->HasChildren() && !model->HasContainerColumns(node->GetItem()) )
1807                             renderColumnFocus = false;
1808                     }
1809                 }
1810
1811                 if ( renderColumnFocus )
1812                 {
1813                     for ( unsigned int i = col_start; i < col_last; i++ )
1814                     {
1815                         wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1816                         if ( col->IsHidden() )
1817                             continue;
1818
1819                         rect.width = col->GetWidth();
1820
1821                         if ( col == m_currentCol )
1822                         {
1823                             // make the rect more visible by adding a small
1824                             // margin around it:
1825                             rect.Deflate(1, 1);
1826
1827                             if ( selected )
1828                             {
1829                                 // DrawFocusRect() uses XOR and is all but
1830                                 // invisible against dark-blue background. Use
1831                                 // the same color used for selected text.
1832                                 DrawSelectedCellFocusRect(dc, rect);
1833                             }
1834                             else
1835                             {
1836                                 wxRendererNative::Get().DrawFocusRect
1837                                                     (
1838                                                         this,
1839                                                         dc,
1840                                                         rect,
1841                                                         0
1842                                                 );
1843                             }
1844                             break;
1845                         }
1846
1847                         rect.x += rect.width;
1848                     }
1849                 }
1850                 else
1851                 {
1852                     // render focus rectangle for the whole row
1853                     wxRendererNative::Get().DrawFocusRect
1854                                         (
1855                                             this,
1856                                             dc,
1857                                             rect,
1858                                             selected ? (int)wxCONTROL_SELECTED : 0
1859                                         );
1860                 }
1861             }
1862         }
1863     }
1864
1865 #if wxUSE_DRAG_AND_DROP
1866     if (m_dropHint)
1867     {
1868         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1869                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1870         dc.SetPen( *wxBLACK_PEN );
1871         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1872         dc.DrawRectangle( rect );
1873     }
1874 #endif // wxUSE_DRAG_AND_DROP
1875
1876     wxDataViewColumn * const
1877         expander = GetExpanderColumnOrFirstOne(GetOwner());
1878
1879     // redraw all cells for all rows which must be repainted and all columns
1880     wxRect cell_rect;
1881     cell_rect.x = x_start;
1882     for (unsigned int i = col_start; i < col_last; i++)
1883     {
1884         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1885         wxDataViewRenderer *cell = col->GetRenderer();
1886         cell_rect.width = col->GetWidth();
1887
1888         if ( col->IsHidden() || cell_rect.width <= 0 )
1889             continue;       // skip it!
1890
1891         for (unsigned int item = item_start; item < item_last; item++)
1892         {
1893             // get the cell value and set it into the renderer
1894             wxDataViewTreeNode *node = NULL;
1895             wxDataViewItem dataitem;
1896
1897             if (!IsVirtualList())
1898             {
1899                 node = GetTreeNodeByRow(item);
1900                 if( node == NULL )
1901                     continue;
1902
1903                 dataitem = node->GetItem();
1904
1905                 // Skip all columns of "container" rows except the expander
1906                 // column itself unless HasContainerColumns() overrides this.
1907                 if ( col != expander &&
1908                         model->IsContainer(dataitem) &&
1909                             !model->HasContainerColumns(dataitem) )
1910                     continue;
1911             }
1912             else
1913             {
1914                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1915             }
1916
1917             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1918
1919             // update cell_rect
1920             cell_rect.y = GetLineStart( item );
1921             cell_rect.height = GetLineHeight( item );
1922
1923             // deal with the expander
1924             int indent = 0;
1925             if ((!IsList()) && (col == expander))
1926             {
1927                 // Calculate the indent first
1928                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1929
1930                 // we reserve m_lineHeight of horizontal space for the expander
1931                 // but leave EXPANDER_MARGIN around the expander itself
1932                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1933
1934                 indent += m_lineHeight;
1935
1936                 // draw expander if needed and visible
1937                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1938                 {
1939                     dc.SetPen( m_penExpander );
1940                     dc.SetBrush( wxNullBrush );
1941
1942                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1943                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1944                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1945
1946                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1947
1948                     int flag = 0;
1949                     if ( m_underMouse == node )
1950                         flag |= wxCONTROL_CURRENT;
1951                     if ( node->IsOpen() )
1952                         flag |= wxCONTROL_EXPANDED;
1953
1954                     // ensure that we don't overflow the cell (which might
1955                     // happen if the column is very narrow)
1956                     wxDCClipper clip(dc, cell_rect);
1957
1958                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1959                 }
1960
1961                 // force the expander column to left-center align
1962                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1963             }
1964
1965             wxRect item_rect = cell_rect;
1966             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1967
1968             // account for the tree indent (harmless if we're not indented)
1969             item_rect.x += indent;
1970             item_rect.width -= indent;
1971
1972             if ( item_rect.width <= 0 )
1973                 continue;
1974
1975             int state = 0;
1976             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1977                 state |= wxDATAVIEW_CELL_SELECTED;
1978
1979             // TODO: it would be much more efficient to create a clipping
1980             //       region for the entire column being rendered (in the OnPaint
1981             //       of wxDataViewMainWindow) instead of a single clip region for
1982             //       each cell. However it would mean that each renderer should
1983             //       respect the given wxRect's top & bottom coords, eventually
1984             //       violating only the left & right coords - however the user can
1985             //       make its own renderer and thus we cannot be sure of that.
1986             wxDCClipper clip(dc, item_rect);
1987
1988             cell->WXCallRender(item_rect, &dc, state);
1989         }
1990
1991         cell_rect.x += cell_rect.width;
1992     }
1993 }
1994
1995 void wxDataViewMainWindow::OnRenameTimer()
1996 {
1997     // We have to call this here because changes may just have
1998     // been made and no screen update taken place.
1999     if ( m_dirty )
2000     {
2001         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
2002         //       (needs to be tested!)
2003         wxSafeYield();
2004     }
2005
2006     wxDataViewItem item = GetItemByRow( m_currentRow );
2007
2008     wxRect labelRect = GetItemRect(item, m_currentCol);
2009
2010     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
2011 }
2012
2013 //-----------------------------------------------------------------------------
2014 // Helper class for do operation on the tree node
2015 //-----------------------------------------------------------------------------
2016 class DoJob
2017 {
2018 public:
2019     DoJob() { }
2020     virtual ~DoJob() { }
2021
2022     // The return value control how the tree-walker tranverse the tree
2023     enum
2024     {
2025         DONE,          // Job done, stop traversing and return
2026         SKIP_SUBTREE,  // Ignore the current node's subtree and continue
2027         CONTINUE       // Job not done, continue
2028     };
2029
2030     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
2031 };
2032
2033 bool Walker( wxDataViewTreeNode * node, DoJob & func )
2034 {
2035     wxCHECK_MSG( node, false, "can't walk NULL node" );
2036
2037     switch( func( node ) )
2038     {
2039         case DoJob::DONE:
2040             return true;
2041         case DoJob::SKIP_SUBTREE:
2042             return false;
2043         case DoJob::CONTINUE:
2044             break;
2045     }
2046
2047     if ( node->HasChildren() )
2048     {
2049         const wxDataViewTreeNodes& nodes = node->GetChildNodes();
2050
2051         for ( wxDataViewTreeNodes::const_iterator i = nodes.begin();
2052               i != nodes.end();
2053               ++i )
2054         {
2055             if ( Walker(*i, func) )
2056                 return true;
2057         }
2058     }
2059
2060     return false;
2061 }
2062
2063 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
2064 {
2065     if (IsVirtualList())
2066     {
2067         wxDataViewVirtualListModel *list_model =
2068             (wxDataViewVirtualListModel*) GetModel();
2069         m_count = list_model->GetCount();
2070     }
2071     else
2072     {
2073         SortPrepare();
2074
2075         wxDataViewTreeNode *parentNode = FindNode(parent);
2076
2077         if ( !parentNode )
2078             return false;
2079
2080         wxDataViewItemArray modelSiblings;
2081         GetModel()->GetChildren(parent, modelSiblings);
2082         const int modelSiblingsSize = modelSiblings.size();
2083
2084         int posInModel = modelSiblings.Index(item, /*fromEnd=*/true);
2085         wxCHECK_MSG( posInModel != wxNOT_FOUND, false, "adding non-existent item?" );
2086
2087         wxDataViewTreeNode *itemNode = new wxDataViewTreeNode(parentNode, item);
2088         itemNode->SetHasChildren(GetModel()->IsContainer(item));
2089
2090         parentNode->SetHasChildren(true);
2091
2092         const wxDataViewTreeNodes& nodeSiblings = parentNode->GetChildNodes();
2093         const int nodeSiblingsSize = nodeSiblings.size();
2094
2095         int nodePos = 0;
2096
2097         if ( posInModel == modelSiblingsSize - 1 )
2098         {
2099             nodePos = nodeSiblingsSize;
2100         }
2101         else if ( modelSiblingsSize == nodeSiblingsSize + 1 )
2102         {
2103             // This is the simple case when our node tree already matches the
2104             // model and only this one item is missing.
2105             nodePos = posInModel;
2106         }
2107         else
2108         {
2109             // It's possible that a larger discrepancy between the model and
2110             // our realization exists. This can happen e.g. when adding a bunch
2111             // of items to the model and then calling ItemsAdded() just once
2112             // afterwards. In this case, we must find the right position by
2113             // looking at sibling items.
2114
2115             // append to the end if we won't find a better position:
2116             nodePos = nodeSiblingsSize;
2117
2118             for ( int nextItemPos = posInModel + 1;
2119                   nextItemPos < modelSiblingsSize;
2120                   nextItemPos++ )
2121             {
2122                 int nextNodePos = parentNode->FindChildByItem(modelSiblings[nextItemPos]);
2123                 if ( nextNodePos != wxNOT_FOUND )
2124                 {
2125                     nodePos = nextNodePos;
2126                     break;
2127                 }
2128             }
2129         }
2130
2131         parentNode->ChangeSubTreeCount(+1);
2132         parentNode->InsertChild(itemNode, nodePos);
2133
2134         m_count = -1;
2135     }
2136
2137     GetOwner()->InvalidateColBestWidths();
2138     UpdateDisplay();
2139
2140     return true;
2141 }
2142
2143 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2144                                        const wxDataViewItem& item)
2145 {
2146     if (IsVirtualList())
2147     {
2148         wxDataViewVirtualListModel *list_model =
2149             (wxDataViewVirtualListModel*) GetModel();
2150         m_count = list_model->GetCount();
2151
2152         if ( !m_selection.empty() )
2153         {
2154             const int row = GetRowByItem(item);
2155
2156             int rowIndexInSelection = wxNOT_FOUND;
2157
2158             const size_t selCount = m_selection.size();
2159             for ( size_t i = 0; i < selCount; i++ )
2160             {
2161                 if ( m_selection[i] == (unsigned)row )
2162                     rowIndexInSelection = i;
2163                 else if ( m_selection[i] > (unsigned)row )
2164                     m_selection[i]--;
2165             }
2166
2167             if ( rowIndexInSelection != wxNOT_FOUND )
2168                 m_selection.RemoveAt(rowIndexInSelection);
2169         }
2170
2171     }
2172     else // general case
2173     {
2174         wxDataViewTreeNode *parentNode = FindNode(parent);
2175
2176         // Notice that it is possible that the item being deleted is not in the
2177         // tree at all, for example we could be deleting a never shown (because
2178         // collapsed) item in a tree model. So it's not an error if we don't know
2179         // about this item, just return without doing anything then.
2180         if ( !parentNode )
2181             return true;
2182
2183         wxCHECK_MSG( parentNode->HasChildren(), false, "parent node doesn't have children?" );
2184         const wxDataViewTreeNodes& parentsChildren = parentNode->GetChildNodes();
2185
2186         // We can't use FindNode() to find 'item', because it was already
2187         // removed from the model by the time ItemDeleted() is called, so we
2188         // have to do it manually. We keep track of its position as well for
2189         // later use.
2190         int itemPosInNode = 0;
2191         wxDataViewTreeNode *itemNode = NULL;
2192         for ( wxDataViewTreeNodes::const_iterator i = parentsChildren.begin();
2193               i != parentsChildren.end();
2194               ++i, ++itemPosInNode )
2195         {
2196             if( (*i)->GetItem() == item )
2197             {
2198                 itemNode = *i;
2199                 break;
2200             }
2201         }
2202
2203         // If the parent wasn't expanded, it's possible that we didn't have a
2204         // node corresponding to 'item' and so there's nothing left to do.
2205         if ( !itemNode )
2206         {
2207             // If this was the last child to be removed, it's possible the parent
2208             // node became a leaf. Let's ask the model about it.
2209             if ( parentNode->GetChildNodes().empty() )
2210                 parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2211
2212             return true;
2213         }
2214
2215         // Delete the item from wxDataViewTreeNode representation:
2216         const int itemsDeleted = 1 + itemNode->GetSubTreeCount();
2217
2218         parentNode->RemoveChild(itemNode);
2219         delete itemNode;
2220         parentNode->ChangeSubTreeCount(-itemsDeleted);
2221
2222         // Make the row number invalid and get a new valid one when user call GetRowCount
2223         m_count = -1;
2224
2225         // If this was the last child to be removed, it's possible the parent
2226         // node became a leaf. Let's ask the model about it.
2227         if ( parentNode->GetChildNodes().empty() )
2228             parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2229
2230         // Update selection by removing 'item' and its entire children tree from the selection.
2231         if ( !m_selection.empty() )
2232         {
2233             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2234             // the parent ('parentNode') and position in its list of children
2235             int itemRow;
2236             if ( itemPosInNode == 0 )
2237             {
2238                 // 1st child, row number is that of the parent parentNode + 1
2239                 itemRow = GetRowByItem(parentNode->GetItem()) + 1;
2240             }
2241             else
2242             {
2243                 // row number is that of the sibling above 'item' + its subtree if any + 1
2244                 const wxDataViewTreeNode *siblingNode = parentNode->GetChildNodes()[itemPosInNode - 1];
2245
2246                 itemRow = GetRowByItem(siblingNode->GetItem()) +
2247                           siblingNode->GetSubTreeCount() +
2248                           1;
2249             }
2250
2251             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2252
2253             const size_t numSelections = m_selection.size();
2254             for ( size_t i = 0; i < numSelections; ++i )
2255             {
2256                 const int s = m_selection[i];
2257                 if ( s < itemRow )
2258                     newsel.push_back(s);
2259                 else if ( s >= itemRow + itemsDeleted )
2260                     newsel.push_back(s - itemsDeleted);
2261                 // else: deleted item, remove from selection
2262             }
2263
2264             m_selection = newsel;
2265         }
2266     }
2267
2268     // Change the current row to the last row if the current exceed the max row number
2269     if( m_currentRow > GetRowCount() )
2270         ChangeCurrentRow(m_count - 1);
2271
2272     GetOwner()->InvalidateColBestWidths();
2273     UpdateDisplay();
2274
2275     return true;
2276 }
2277
2278 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2279 {
2280     SortPrepare();
2281     g_model->Resort();
2282
2283     GetOwner()->InvalidateColBestWidths();
2284
2285     // Send event
2286     wxWindow *parent = GetParent();
2287     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2288     le.SetEventObject(parent);
2289     le.SetModel(GetModel());
2290     le.SetItem(item);
2291     parent->ProcessWindowEvent(le);
2292
2293     return true;
2294 }
2295
2296 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2297 {
2298     int view_column = -1;
2299     unsigned int n_col = m_owner->GetColumnCount();
2300     for (unsigned i = 0; i < n_col; i++)
2301     {
2302         wxDataViewColumn *column = m_owner->GetColumn( i );
2303         if (column->GetModelColumn() == model_column)
2304         {
2305             view_column = (int) i;
2306             break;
2307         }
2308     }
2309     if (view_column == -1)
2310         return false;
2311
2312     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2313 /*#define MAX_VIRTUAL_WIDTH       100000
2314
2315     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2316     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2317     Refresh( true, &rect );
2318
2319     return true;
2320 */
2321     SortPrepare();
2322     g_model->Resort();
2323
2324     GetOwner()->InvalidateColBestWidth(view_column);
2325
2326     // Send event
2327     wxWindow *parent = GetParent();
2328     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2329     le.SetEventObject(parent);
2330     le.SetModel(GetModel());
2331     le.SetItem(item);
2332     le.SetColumn(view_column);
2333     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2334     parent->ProcessWindowEvent(le);
2335
2336     return true;
2337 }
2338
2339 bool wxDataViewMainWindow::Cleared()
2340 {
2341     DestroyTree();
2342     m_selection.Clear();
2343
2344     SortPrepare();
2345     BuildTree( GetModel() );
2346
2347     GetOwner()->InvalidateColBestWidths();
2348     UpdateDisplay();
2349
2350     return true;
2351 }
2352
2353 void wxDataViewMainWindow::UpdateDisplay()
2354 {
2355     m_dirty = true;
2356     m_underMouse = NULL;
2357 }
2358
2359 void wxDataViewMainWindow::OnInternalIdle()
2360 {
2361     wxWindow::OnInternalIdle();
2362
2363     if (m_dirty)
2364     {
2365         RecalculateDisplay();
2366         m_dirty = false;
2367     }
2368 }
2369
2370 void wxDataViewMainWindow::RecalculateDisplay()
2371 {
2372     wxDataViewModel *model = GetModel();
2373     if (!model)
2374     {
2375         Refresh();
2376         return;
2377     }
2378
2379     int width = GetEndOfLastCol();
2380     int height = GetLineStart( GetRowCount() );
2381
2382     SetVirtualSize( width, height );
2383     GetOwner()->SetScrollRate( 10, m_lineHeight );
2384
2385     Refresh();
2386 }
2387
2388 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2389 {
2390     m_underMouse = NULL;
2391
2392     wxWindow::ScrollWindow( dx, dy, rect );
2393
2394     if (GetOwner()->m_headerArea)
2395         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2396 }
2397
2398 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2399 {
2400     m_underMouse = NULL;
2401
2402     int x, y;
2403     m_owner->GetScrollPixelsPerUnit( &x, &y );
2404     int sy = GetLineStart( rows )/y;
2405     int sx = 0;
2406     if( column != -1 )
2407     {
2408         wxRect rect = GetClientRect();
2409         int colnum = 0;
2410         int x_start, w = 0;
2411         int xx, yy, xe;
2412         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2413         for (x_start = 0; colnum < column; colnum++)
2414         {
2415             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2416             if (col->IsHidden())
2417                 continue;      // skip it!
2418
2419             w = col->GetWidth();
2420             x_start += w;
2421         }
2422
2423         int x_end = x_start + w;
2424         xe = xx + rect.width;
2425         if( x_end > xe )
2426         {
2427             sx = ( xx + x_end - xe )/x;
2428         }
2429         if( x_start < xx )
2430         {
2431             sx = x_start/x;
2432         }
2433     }
2434     m_owner->Scroll( sx, sy );
2435 }
2436
2437 int wxDataViewMainWindow::GetCountPerPage() const
2438 {
2439     wxSize size = GetClientSize();
2440     return size.y / m_lineHeight;
2441 }
2442
2443 int wxDataViewMainWindow::GetEndOfLastCol() const
2444 {
2445     int width = 0;
2446     unsigned int i;
2447     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2448     {
2449         const wxDataViewColumn *c =
2450             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2451
2452         if (!c->IsHidden())
2453             width += c->GetWidth();
2454     }
2455     return width;
2456 }
2457
2458 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2459 {
2460     int x = 0;
2461     int y = 0;
2462     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2463
2464     return GetLineAt( y );
2465 }
2466
2467 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2468 {
2469     wxSize client_size = GetClientSize();
2470     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2471                                     &client_size.x, &client_size.y );
2472
2473     // we should deal with the pixel here
2474     unsigned int row = GetLineAt(client_size.y) - 1;
2475
2476     return wxMin( GetRowCount()-1, row );
2477 }
2478
2479 unsigned int wxDataViewMainWindow::GetRowCount()
2480 {
2481     if ( m_count == -1 )
2482     {
2483         m_count = RecalculateCount();
2484         UpdateDisplay();
2485     }
2486     return m_count;
2487 }
2488
2489 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2490 {
2491     m_currentRow = row;
2492
2493     // send event
2494 }
2495
2496 void wxDataViewMainWindow::SelectAllRows( bool on )
2497 {
2498     if (IsEmpty())
2499         return;
2500
2501     if (on)
2502     {
2503         m_selection.Clear();
2504         for (unsigned int i = 0; i < GetRowCount(); i++)
2505             m_selection.Add( i );
2506         Refresh();
2507     }
2508     else
2509     {
2510         unsigned int first_visible = GetFirstVisibleRow();
2511         unsigned int last_visible = GetLastVisibleRow();
2512         unsigned int i;
2513         for (i = 0; i < m_selection.GetCount(); i++)
2514         {
2515             unsigned int row = m_selection[i];
2516             if ((row >= first_visible) && (row <= last_visible))
2517                 RefreshRow( row );
2518         }
2519         m_selection.Clear();
2520     }
2521 }
2522
2523 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2524 {
2525     if (m_selection.Index( row ) == wxNOT_FOUND)
2526     {
2527         if (on)
2528         {
2529             m_selection.Add( row );
2530             RefreshRow( row );
2531         }
2532     }
2533     else
2534     {
2535         if (!on)
2536         {
2537             m_selection.Remove( row );
2538             RefreshRow( row );
2539         }
2540     }
2541 }
2542
2543 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2544 {
2545     if (from > to)
2546     {
2547         unsigned int tmp = from;
2548         from = to;
2549         to = tmp;
2550     }
2551
2552     unsigned int i;
2553     for (i = from; i <= to; i++)
2554     {
2555         if (m_selection.Index( i ) == wxNOT_FOUND)
2556         {
2557             if (on)
2558                 m_selection.Add( i );
2559         }
2560         else
2561         {
2562             if (!on)
2563                 m_selection.Remove( i );
2564         }
2565     }
2566     RefreshRows( from, to );
2567 }
2568
2569 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2570 {
2571     for (size_t i=0; i < aSelections.GetCount(); i++)
2572     {
2573         int n = aSelections[i];
2574
2575         m_selection.Add( n );
2576         RefreshRow( n );
2577     }
2578 }
2579
2580 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2581 {
2582     if (m_selection.Index( row ) == wxNOT_FOUND)
2583         m_selection.Add( row );
2584     else
2585         m_selection.Remove( row );
2586     RefreshRow( row );
2587 }
2588
2589 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2590 {
2591     return (m_selection.Index( row ) != wxNOT_FOUND);
2592 }
2593
2594 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2595 {
2596     wxWindow *parent = GetParent();
2597     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2598
2599     le.SetEventObject(parent);
2600     le.SetModel(GetModel());
2601     le.SetItem( item );
2602
2603     parent->ProcessWindowEvent(le);
2604 }
2605
2606 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2607 {
2608     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2609     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2610
2611     wxSize client_size = GetClientSize();
2612     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2613     wxRect intersect_rect = client_rect.Intersect( rect );
2614     if (intersect_rect.width > 0)
2615         Refresh( true, &intersect_rect );
2616 }
2617
2618 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2619 {
2620     if (from > to)
2621     {
2622         unsigned int tmp = to;
2623         to = from;
2624         from = tmp;
2625     }
2626
2627     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2628     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2629
2630     wxSize client_size = GetClientSize();
2631     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2632     wxRect intersect_rect = client_rect.Intersect( rect );
2633     if (intersect_rect.width > 0)
2634         Refresh( true, &intersect_rect );
2635 }
2636
2637 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2638 {
2639     wxSize client_size = GetClientSize();
2640     int start = GetLineStart( firstRow );
2641     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2642     if (start > client_size.y) return;
2643
2644     wxRect rect( 0, start, client_size.x, client_size.y - start );
2645
2646     Refresh( true, &rect );
2647 }
2648
2649 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2650 {
2651     wxRect rect;
2652     rect.x = 0;
2653     rect.y = GetLineStart( row );
2654     rect.width = GetEndOfLastCol();
2655     rect.height = GetLineHeight( row );
2656
2657     return rect;
2658 }
2659
2660 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2661 {
2662     const wxDataViewModel *model = GetModel();
2663
2664     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2665     {
2666         // TODO make more efficient
2667
2668         int start = 0;
2669
2670         unsigned int r;
2671         for (r = 0; r < row; r++)
2672         {
2673             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2674             if (!node) return start;
2675
2676             wxDataViewItem item = node->GetItem();
2677
2678             unsigned int cols = GetOwner()->GetColumnCount();
2679             unsigned int col;
2680             int height = m_lineHeight;
2681             for (col = 0; col < cols; col++)
2682             {
2683                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2684                 if (column->IsHidden())
2685                     continue;      // skip it!
2686
2687                 if ((col != 0) &&
2688                     model->IsContainer(item) &&
2689                     !model->HasContainerColumns(item))
2690                     continue;      // skip it!
2691
2692                 wxDataViewRenderer *renderer =
2693                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2694                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2695
2696                 height = wxMax( height, renderer->GetSize().y );
2697             }
2698
2699             start += height;
2700         }
2701
2702         return start;
2703     }
2704     else
2705     {
2706         return row * m_lineHeight;
2707     }
2708 }
2709
2710 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2711 {
2712     const wxDataViewModel *model = GetModel();
2713
2714     // check for the easy case first
2715     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2716         return y / m_lineHeight;
2717
2718     // TODO make more efficient
2719     unsigned int row = 0;
2720     unsigned int yy = 0;
2721     for (;;)
2722     {
2723         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2724         if (!node)
2725         {
2726             // not really correct...
2727             return row + ((y-yy) / m_lineHeight);
2728         }
2729
2730         wxDataViewItem item = node->GetItem();
2731
2732         unsigned int cols = GetOwner()->GetColumnCount();
2733         unsigned int col;
2734         int height = m_lineHeight;
2735         for (col = 0; col < cols; col++)
2736         {
2737             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2738             if (column->IsHidden())
2739                 continue;      // skip it!
2740
2741             if ((col != 0) &&
2742                 model->IsContainer(item) &&
2743                 !model->HasContainerColumns(item))
2744                 continue;      // skip it!
2745
2746             wxDataViewRenderer *renderer =
2747                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2748             renderer->PrepareForItem(model, item, column->GetModelColumn());
2749
2750             height = wxMax( height, renderer->GetSize().y );
2751         }
2752
2753         yy += height;
2754         if (y < yy)
2755             return row;
2756
2757         row++;
2758     }
2759 }
2760
2761 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2762 {
2763     const wxDataViewModel *model = GetModel();
2764
2765     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2766     {
2767         wxASSERT( !IsVirtualList() );
2768
2769         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2770         // wxASSERT( node );
2771         if (!node) return m_lineHeight;
2772
2773         wxDataViewItem item = node->GetItem();
2774
2775         int height = m_lineHeight;
2776
2777         unsigned int cols = GetOwner()->GetColumnCount();
2778         unsigned int col;
2779         for (col = 0; col < cols; col++)
2780         {
2781             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2782             if (column->IsHidden())
2783                 continue;      // skip it!
2784
2785             if ((col != 0) &&
2786                 model->IsContainer(item) &&
2787                 !model->HasContainerColumns(item))
2788                 continue;      // skip it!
2789
2790             wxDataViewRenderer *renderer =
2791                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2792             renderer->PrepareForItem(model, item, column->GetModelColumn());
2793
2794             height = wxMax( height, renderer->GetSize().y );
2795         }
2796
2797         return height;
2798     }
2799     else
2800     {
2801         return m_lineHeight;
2802     }
2803 }
2804
2805
2806 class RowToTreeNodeJob: public DoJob
2807 {
2808 public:
2809     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2810     {
2811         this->row = row;
2812         this->current = current;
2813         ret = NULL;
2814         parent = node;
2815     }
2816
2817     virtual int operator() ( wxDataViewTreeNode * node )
2818     {
2819         current ++;
2820         if( current == static_cast<int>(row))
2821         {
2822             ret = node;
2823             return DoJob::DONE;
2824         }
2825
2826         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2827         {
2828             current += node->GetSubTreeCount();
2829             return  DoJob::SKIP_SUBTREE;
2830         }
2831         else
2832         {
2833             parent = node;
2834
2835             // If the current node has only leaf children, we can find the
2836             // desired node directly. This can speed up finding the node
2837             // in some cases, and will have a very good effect for list views.
2838             if ( node->HasChildren() &&
2839                  (int)node->GetChildNodes().size() == node->GetSubTreeCount() )
2840             {
2841                 const int index = static_cast<int>(row) - current - 1;
2842                 ret = node->GetChildNodes()[index];
2843                 return DoJob::DONE;
2844             }
2845
2846             return DoJob::CONTINUE;
2847         }
2848     }
2849
2850     wxDataViewTreeNode * GetResult() const
2851         { return ret; }
2852
2853 private:
2854     unsigned int row;
2855     int current;
2856     wxDataViewTreeNode * ret;
2857     wxDataViewTreeNode * parent;
2858 };
2859
2860 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2861 {
2862     wxASSERT( !IsVirtualList() );
2863
2864     RowToTreeNodeJob job( row , -2, m_root );
2865     Walker( m_root , job );
2866     return job.GetResult();
2867 }
2868
2869 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2870 {
2871     if (IsVirtualList())
2872     {
2873         return wxDataViewItem( wxUIntToPtr(row+1) );
2874     }
2875     else
2876     {
2877         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2878         return node ? node->GetItem() : wxDataViewItem();
2879     }
2880 }
2881
2882 bool
2883 wxDataViewMainWindow::SendExpanderEvent(wxEventType type,
2884                                         const wxDataViewItem& item)
2885 {
2886     wxWindow *parent = GetParent();
2887     wxDataViewEvent le(type, parent->GetId());
2888
2889     le.SetEventObject(parent);
2890     le.SetModel(GetModel());
2891     le.SetItem( item );
2892
2893     return !parent->ProcessWindowEvent(le) || le.IsAllowed();
2894 }
2895
2896 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2897 {
2898     if (IsList())
2899         return false;
2900
2901     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2902     if (!node)
2903         return false;
2904
2905     if (!node->HasChildren())
2906         return false;
2907
2908     return node->IsOpen();
2909 }
2910
2911 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2912 {
2913     if (IsList())
2914         return false;
2915
2916     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2917     if (!node)
2918         return false;
2919
2920     if (!node->HasChildren())
2921         return false;
2922
2923     return true;
2924 }
2925
2926 void wxDataViewMainWindow::Expand( unsigned int row )
2927 {
2928     if (IsList())
2929         return;
2930
2931     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2932     if (!node)
2933         return;
2934
2935     if (!node->HasChildren())
2936         return;
2937
2938             if (!node->IsOpen())
2939             {
2940                 if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem()) )
2941                 {
2942                     // Vetoed by the event handler.
2943                     return;
2944                 }
2945
2946                 node->ToggleOpen();
2947
2948                 // build the children of current node
2949                 if( node->GetChildNodes().empty() )
2950                 {
2951                     SortPrepare();
2952                     ::BuildTreeHelper(GetModel(), node->GetItem(), node);
2953                 }
2954
2955                 // By expanding the node all row indices that are currently in the selection list
2956                 // and are greater than our node have become invalid. So we have to correct that now.
2957                 const unsigned rowAdjustment = node->GetSubTreeCount();
2958                 for(unsigned i=0; i<m_selection.size(); ++i)
2959                 {
2960                     const unsigned testRow = m_selection[i];
2961                     // all rows above us are not affected, so skip them
2962                     if(testRow <= row)
2963                         continue;
2964
2965                     m_selection[i] += rowAdjustment;
2966                 }
2967
2968                 if(m_currentRow > row)
2969                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2970
2971                 m_count = -1;
2972                 UpdateDisplay();
2973                 // Send the expanded event
2974                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2975             }
2976 }
2977
2978 void wxDataViewMainWindow::Collapse(unsigned int row)
2979 {
2980     if (IsList())
2981         return;
2982
2983     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2984     if (!node)
2985         return;
2986
2987     if (!node->HasChildren())
2988         return;
2989
2990         if (node->IsOpen())
2991         {
2992             if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem()) )
2993             {
2994                 // Vetoed by the event handler.
2995                 return;
2996             }
2997
2998             // Find out if there are selected items below the current node.
2999             bool selectCollapsingRow = false;
3000             const unsigned rowAdjustment = node->GetSubTreeCount();
3001             unsigned maxRowToBeTested = row + rowAdjustment;
3002             for(unsigned i=0; i<m_selection.size(); ++i)
3003             {
3004                 const unsigned testRow = m_selection[i];
3005                 if(testRow > row && testRow <= maxRowToBeTested)
3006                 {
3007                     selectCollapsingRow = true;
3008                     // get out as soon as we have found a node that is selected
3009                     break;
3010                 }
3011             }
3012
3013             node->ToggleOpen();
3014
3015             // If the node to be closed has selected items the user won't see those any longer.
3016             // We select the collapsing node in this case.
3017             if(selectCollapsingRow)
3018             {
3019                 SelectAllRows(false);
3020                 ChangeCurrentRow(row);
3021                 SelectRow(row, true);
3022                 SendSelectionChangedEvent(GetItemByRow(row));
3023             }
3024             else
3025             {
3026                 // if there were no selected items below our node we still need to "fix" the
3027                 // selection list to adjust for the changing of the row indices.
3028                 // We actually do the opposite of what we are doing in Expand().
3029                 for(unsigned i=0; i<m_selection.size(); ++i)
3030                 {
3031                     const unsigned testRow = m_selection[i];
3032                     // all rows above us are not affected, so skip them
3033                     if(testRow <= row)
3034                         continue;
3035
3036                     m_selection[i] -= rowAdjustment;
3037                 }
3038
3039                 // if the "current row" is being collapsed away we change it to the current row ;-)
3040                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3041                     ChangeCurrentRow(row);
3042                 else if(m_currentRow > row)
3043                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3044             }
3045
3046             m_count = -1;
3047             UpdateDisplay();
3048             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3049         }
3050 }
3051
3052 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3053 {
3054     const wxDataViewModel * model = GetModel();
3055     if( model == NULL )
3056         return NULL;
3057
3058     if (!item.IsOk())
3059         return m_root;
3060
3061     // Compose the parent-chain for the item we are looking for
3062     wxVector<wxDataViewItem> parentChain;
3063     wxDataViewItem it( item );
3064     while( it.IsOk() )
3065     {
3066         parentChain.push_back(it);
3067         it = model->GetParent(it);
3068     }
3069
3070     // Find the item along the parent-chain.
3071     // This algorithm is designed to speed up the node-finding method
3072     wxDataViewTreeNode* node = m_root;
3073     for( unsigned iter = parentChain.size()-1; ; --iter )
3074     {
3075         if( node->HasChildren() )
3076         {
3077             if( node->GetChildNodes().empty() )
3078             {
3079                 // Even though the item is a container, it doesn't have any
3080                 // child nodes in the control's representation yet. We have
3081                 // to realize its subtree now.
3082                 SortPrepare();
3083                 ::BuildTreeHelper(model, node->GetItem(), node);
3084             }
3085
3086             const wxDataViewTreeNodes& nodes = node->GetChildNodes();
3087             bool found = false;
3088
3089             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3090             {
3091                 wxDataViewTreeNode* currentNode = nodes[i];
3092                 if (currentNode->GetItem() == parentChain[iter])
3093                 {
3094                     if (currentNode->GetItem() == item)
3095                         return currentNode;
3096
3097                     node = currentNode;
3098                     found = true;
3099                     break;
3100                 }
3101             }
3102             if (!found)
3103                 return NULL;
3104         }
3105         else
3106             return NULL;
3107
3108         if ( !iter )
3109             break;
3110     }
3111     return NULL;
3112 }
3113
3114 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3115                                     wxDataViewColumn* &column )
3116 {
3117     wxDataViewColumn *col = NULL;
3118     unsigned int cols = GetOwner()->GetColumnCount();
3119     unsigned int colnum = 0;
3120     int x, y;
3121     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3122     for (unsigned x_start = 0; colnum < cols; colnum++)
3123     {
3124         col = GetOwner()->GetColumnAt(colnum);
3125         if (col->IsHidden())
3126             continue;      // skip it!
3127
3128         unsigned int w = col->GetWidth();
3129         if (x_start+w >= (unsigned int)x)
3130             break;
3131
3132         x_start += w;
3133     }
3134
3135     column = col;
3136     item = GetItemByRow( GetLineAt( y ) );
3137 }
3138
3139 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3140                                           const wxDataViewColumn* column )
3141 {
3142     int xpos = 0;
3143     int width = 0;
3144
3145     unsigned int cols = GetOwner()->GetColumnCount();
3146     // If column is null the loop will compute the combined width of all columns.
3147     // Otherwise, it will compute the x position of the column we are looking for.
3148     for (unsigned int i = 0; i < cols; i++)
3149     {
3150         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3151
3152         if (col == column)
3153             break;
3154
3155         if (col->IsHidden())
3156             continue;      // skip it!
3157
3158         xpos += col->GetWidth();
3159         width += col->GetWidth();
3160     }
3161
3162     if(column != 0)
3163     {
3164         // If we have a column, we need can get its width directly.
3165         if(column->IsHidden())
3166             width = 0;
3167         else
3168             width = column->GetWidth();
3169
3170     }
3171     else
3172     {
3173         // If we have no column, we reset the x position back to zero.
3174         xpos = 0;
3175     }
3176
3177     // we have to take an expander column into account and compute its indentation
3178     // to get the correct x position where the actual text is
3179     int indent = 0;
3180     int row = GetRowByItem(item);
3181     if (!IsList() &&
3182             (column == 0 || GetExpanderColumnOrFirstOne(GetOwner()) == column) )
3183     {
3184         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3185         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3186         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3187     }
3188
3189     wxRect itemRect( xpos + indent,
3190                      GetLineStart( row ),
3191                      width - indent,
3192                      GetLineHeight( row ) );
3193
3194     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3195                                       &itemRect.x, &itemRect.y );
3196
3197     return itemRect;
3198 }
3199
3200 int wxDataViewMainWindow::RecalculateCount()
3201 {
3202     if (IsVirtualList())
3203     {
3204         wxDataViewVirtualListModel *list_model =
3205             (wxDataViewVirtualListModel*) GetModel();
3206
3207         return list_model->GetCount();
3208     }
3209     else
3210     {
3211         return m_root->GetSubTreeCount();
3212     }
3213 }
3214
3215 class ItemToRowJob : public DoJob
3216 {
3217 public:
3218     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3219         : m_iter(iter),
3220         item(item_)
3221     {
3222         ret = -1;
3223     }
3224
3225     // Maybe binary search will help to speed up this process
3226     virtual int operator() ( wxDataViewTreeNode * node)
3227     {
3228         ret ++;
3229         if( node->GetItem() == item )
3230         {
3231             return DoJob::DONE;
3232         }
3233
3234         if( node->GetItem() == *m_iter )
3235         {
3236             m_iter++;
3237             return DoJob::CONTINUE;
3238         }
3239         else
3240         {
3241             ret += node->GetSubTreeCount();
3242             return DoJob::SKIP_SUBTREE;
3243         }
3244
3245     }
3246
3247     // the row number is begin from zero
3248     int GetResult() const
3249         { return ret -1; }
3250
3251 private:
3252     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3253     wxDataViewItem item;
3254     int ret;
3255
3256 };
3257
3258 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3259 {
3260     const wxDataViewModel * model = GetModel();
3261     if( model == NULL )
3262         return -1;
3263
3264     if (IsVirtualList())
3265     {
3266         return wxPtrToUInt( item.GetID() ) -1;
3267     }
3268     else
3269     {
3270         if( !item.IsOk() )
3271             return -1;
3272
3273         // Compose the parent-chain of the item we are looking for
3274         wxVector<wxDataViewItem> parentChain;
3275         wxDataViewItem it( item );
3276         while( it.IsOk() )
3277         {
3278             parentChain.push_back(it);
3279             it = model->GetParent(it);
3280         }
3281
3282         // add an 'invalid' item to represent our 'invisible' root node
3283         parentChain.push_back(wxDataViewItem());
3284
3285         // the parent chain was created by adding the deepest parent first.
3286         // so if we want to start at the root node, we have to iterate backwards through the vector
3287         ItemToRowJob job( item, parentChain.rbegin() );
3288         Walker( m_root, job );
3289         return job.GetResult();
3290     }
3291 }
3292
3293 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3294                              wxDataViewTreeNode * node)
3295 {
3296     if( !model->IsContainer( item ) )
3297         return;
3298
3299     wxDataViewItemArray children;
3300     unsigned int num = model->GetChildren( item, children);
3301
3302     for ( unsigned int index = 0; index < num; index++ )
3303     {
3304         wxDataViewTreeNode *n = new wxDataViewTreeNode(node, children[index]);
3305
3306         if( model->IsContainer(children[index]) )
3307             n->SetHasChildren( true );
3308
3309         node->InsertChild(n, index);
3310     }
3311
3312     wxASSERT( node->IsOpen() );
3313     node->ChangeSubTreeCount(+num);
3314 }
3315
3316 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3317 {
3318     DestroyTree();
3319
3320     if (GetModel()->IsVirtualListModel())
3321     {
3322         m_count = -1;
3323         return;
3324     }
3325
3326     m_root = wxDataViewTreeNode::CreateRootNode();
3327
3328     // First we define a invalid item to fetch the top-level elements
3329     wxDataViewItem item;
3330     SortPrepare();
3331     BuildTreeHelper( model, item, m_root);
3332     m_count = -1;
3333 }
3334
3335 void wxDataViewMainWindow::DestroyTree()
3336 {
3337     if (!IsVirtualList())
3338     {
3339         wxDELETE(m_root);
3340         m_count = 0;
3341     }
3342 }
3343
3344 wxDataViewColumn*
3345 wxDataViewMainWindow::FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode)
3346 {
3347     // Edit the current column editable in 'mode'. If no column is focused
3348     // (typically because the user has full row selected), try to find the
3349     // first editable column (this would typically be a checkbox for
3350     // wxDATAVIEW_CELL_ACTIVATABLE and we don't want to force the user to set
3351     // focus on the checkbox column; or on the only editable text column).
3352
3353     wxDataViewColumn *candidate = m_currentCol;
3354
3355     if ( candidate &&
3356          candidate->GetRenderer()->GetMode() != mode &&
3357          !m_currentColSetByKeyboard )
3358     {
3359         // If current column was set by mouse to something not editable (in
3360         // 'mode') and the user pressed Space/F2 to edit it, treat the
3361         // situation as if there was whole-row focus, because that's what is
3362         // visually indicated and the mouse click could very well be targeted
3363         // on the row rather than on an individual cell.
3364         //
3365         // But if it was done by keyboard, respect that even if the column
3366         // isn't editable, because focus is visually on that column and editing
3367         // something else would be surprising.
3368         candidate = NULL;
3369     }
3370
3371     if ( !candidate )
3372     {
3373         const unsigned cols = GetOwner()->GetColumnCount();
3374         for ( unsigned i = 0; i < cols; i++ )
3375         {
3376             wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
3377             if ( c->IsHidden() )
3378                 continue;
3379
3380             if ( c->GetRenderer()->GetMode() == mode )
3381             {
3382                 candidate = c;
3383                 break;
3384             }
3385         }
3386     }
3387
3388     // If on container item without columns, only the expander column
3389     // may be directly editable:
3390     if ( candidate &&
3391          GetOwner()->GetExpanderColumn() != candidate &&
3392          GetModel()->IsContainer(item) &&
3393          !GetModel()->HasContainerColumns(item) )
3394     {
3395         candidate = GetOwner()->GetExpanderColumn();
3396     }
3397
3398     if ( !candidate )
3399        return NULL;
3400
3401    if ( candidate->GetRenderer()->GetMode() != mode )
3402        return NULL;
3403
3404    return candidate;
3405 }
3406
3407 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3408 {
3409     wxWindow * const parent = GetParent();
3410
3411     // propagate the char event upwards
3412     wxKeyEvent eventForParent(event);
3413     eventForParent.SetEventObject(parent);
3414     if ( parent->ProcessWindowEvent(eventForParent) )
3415         return;
3416
3417     if ( parent->HandleAsNavigationKey(event) )
3418         return;
3419
3420     // no item -> nothing to do
3421     if (!HasCurrentRow())
3422     {
3423         event.Skip();
3424         return;
3425     }
3426
3427     // don't use m_linesPerPage directly as it might not be computed yet
3428     const int pageSize = GetCountPerPage();
3429     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3430
3431     switch ( event.GetKeyCode() )
3432     {
3433         case WXK_RETURN:
3434             {
3435                 // Enter activates the item, i.e. sends wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED to
3436                 // it. Only if that event is not handled do we activate column renderer (which
3437                 // is normally done by Space) or even inline editing.
3438
3439                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3440
3441                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3442                                    parent->GetId());
3443                 le.SetItem(item);
3444                 le.SetEventObject(parent);
3445                 le.SetModel(GetModel());
3446
3447                 if ( parent->ProcessWindowEvent(le) )
3448                     break;
3449                 // else: fall through to WXK_SPACE handling
3450             }
3451
3452         case WXK_SPACE:
3453             {
3454                 // Space toggles activatable items or -- if not activatable --
3455                 // starts inline editing (this is normally done using F2 on
3456                 // Windows, but Space is common everywhere else, so use it too
3457                 // for greater cross-platform compatibility).
3458
3459                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3460
3461                 // Activate the current activatable column. If not column is focused (typically
3462                 // because the user has full row selected), try to find the first activatable
3463                 // column (this would typically be a checkbox and we don't want to force the user
3464                 // to set focus on the checkbox column).
3465                 wxDataViewColumn *activatableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_ACTIVATABLE);
3466
3467                 if ( activatableCol )
3468                 {
3469                     const unsigned colIdx = activatableCol->GetModelColumn();
3470                     const wxRect cell_rect = GetOwner()->GetItemRect(item, activatableCol);
3471
3472                     wxDataViewRenderer *cell = activatableCol->GetRenderer();
3473                     cell->PrepareForItem(GetModel(), item, colIdx);
3474                     cell->WXActivateCell(cell_rect, GetModel(), item, colIdx, NULL);
3475
3476                     break;
3477                 }
3478                 // else: fall through to WXK_F2 handling
3479             }
3480
3481         case WXK_F2:
3482             {
3483                 if( !m_selection.empty() )
3484                 {
3485                     // Mimic Windows 7 behavior: edit the item that has focus
3486                     // if it is selected and the first selected item if focus
3487                     // is out of selection.
3488                     int sel;
3489                     if ( m_selection.Index(m_currentRow) != wxNOT_FOUND )
3490                         sel = m_currentRow;
3491                     else
3492                         sel = m_selection[0];
3493
3494
3495                     const wxDataViewItem item = GetItemByRow(sel);
3496
3497                     // Edit the current column. If no column is focused
3498                     // (typically because the user has full row selected), try
3499                     // to find the first editable column.
3500                     wxDataViewColumn *editableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_EDITABLE);
3501
3502                     if ( editableCol )
3503                         GetOwner()->StartEditor(item, GetOwner()->GetColumnIndex(editableCol));
3504                 }
3505             }
3506             break;
3507
3508         case WXK_UP:
3509             if ( m_currentRow > 0 )
3510                 OnVerticalNavigation( m_currentRow - 1, event );
3511             break;
3512
3513         case WXK_DOWN:
3514             if ( m_currentRow + 1 < GetRowCount() )
3515                 OnVerticalNavigation( m_currentRow + 1, event );
3516             break;
3517         // Add the process for tree expanding/collapsing
3518         case WXK_LEFT:
3519             OnLeftKey();
3520             break;
3521
3522         case WXK_RIGHT:
3523             OnRightKey();
3524             break;
3525
3526         case WXK_END:
3527         {
3528             if (!IsEmpty())
3529                 OnVerticalNavigation( GetRowCount() - 1, event );
3530             break;
3531         }
3532         case WXK_HOME:
3533             if (!IsEmpty())
3534                 OnVerticalNavigation( 0, event );
3535             break;
3536
3537         case WXK_PAGEUP:
3538             {
3539                 int steps = pageSize - 1;
3540                 int index = m_currentRow - steps;
3541                 if (index < 0)
3542                     index = 0;
3543
3544                 OnVerticalNavigation( index, event );
3545             }
3546             break;
3547
3548         case WXK_PAGEDOWN:
3549             {
3550                 int steps = pageSize - 1;
3551                 unsigned int index = m_currentRow + steps;
3552                 unsigned int count = GetRowCount();
3553                 if ( index >= count )
3554                     index = count - 1;
3555
3556                 OnVerticalNavigation( index, event );
3557             }
3558             break;
3559
3560         default:
3561             event.Skip();
3562     }
3563 }
3564
3565 void wxDataViewMainWindow::OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event)
3566 {
3567     wxCHECK_RET( newCurrent < GetRowCount(),
3568                 wxT("invalid item index in OnVerticalNavigation()") );
3569
3570     // if there is no selection, we cannot move it anywhere
3571     if (!HasCurrentRow())
3572         return;
3573
3574     unsigned int oldCurrent = m_currentRow;
3575
3576     // in single selection we just ignore Shift as we can't select several
3577     // items anyhow
3578     if ( event.ShiftDown() && !IsSingleSel() )
3579     {
3580         RefreshRow( oldCurrent );
3581
3582         ChangeCurrentRow( newCurrent );
3583
3584         // select all the items between the old and the new one
3585         if ( oldCurrent > newCurrent )
3586         {
3587             newCurrent = oldCurrent;
3588             oldCurrent = m_currentRow;
3589         }
3590
3591         SelectRows( oldCurrent, newCurrent, true );
3592         if (oldCurrent!=newCurrent)
3593             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
3594     }
3595     else // !shift
3596     {
3597         RefreshRow( oldCurrent );
3598
3599         // all previously selected items are unselected unless ctrl is held
3600         if ( !event.ControlDown() )
3601             SelectAllRows(false);
3602
3603         ChangeCurrentRow( newCurrent );
3604
3605         if ( !event.ControlDown() )
3606         {
3607             SelectRow( m_currentRow, true );
3608             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3609         }
3610         else
3611             RefreshRow( m_currentRow );
3612     }
3613
3614     GetOwner()->EnsureVisible( m_currentRow, -1 );
3615 }
3616
3617 void wxDataViewMainWindow::OnLeftKey()
3618 {
3619     if ( IsList() )
3620     {
3621         TryAdvanceCurrentColumn(NULL, /*forward=*/false);
3622     }
3623     else
3624     {
3625         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3626
3627         if ( TryAdvanceCurrentColumn(node, /*forward=*/false) )
3628             return;
3629
3630         // Because TryAdvanceCurrentColumn() return false, we are at the first
3631         // column or using whole-row selection. In this situation, we can use
3632         // the standard TreeView handling of the left key.
3633         if (node->HasChildren() && node->IsOpen())
3634         {
3635             Collapse(m_currentRow);
3636         }
3637         else
3638         {
3639             // if the node is already closed, we move the selection to its parent
3640             wxDataViewTreeNode *parent_node = node->GetParent();
3641
3642             if (parent_node)
3643             {
3644                 int parent = GetRowByItem( parent_node->GetItem() );
3645                 if ( parent >= 0 )
3646                 {
3647                     unsigned int row = m_currentRow;
3648                     SelectRow( row, false);
3649                     SelectRow( parent, true );
3650                     ChangeCurrentRow( parent );
3651                     GetOwner()->EnsureVisible( parent, -1 );
3652                     SendSelectionChangedEvent( parent_node->GetItem() );
3653                 }
3654             }
3655         }
3656     }
3657 }
3658
3659 void wxDataViewMainWindow::OnRightKey()
3660 {
3661     if ( IsList() )
3662     {
3663         TryAdvanceCurrentColumn(NULL, /*forward=*/true);
3664     }
3665     else
3666     {
3667         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3668
3669         if ( node->HasChildren() )
3670         {
3671             if ( !node->IsOpen() )
3672             {
3673                 Expand( m_currentRow );
3674             }
3675             else
3676             {
3677                 // if the node is already open, we move the selection to the first child
3678                 unsigned int row = m_currentRow;
3679                 SelectRow( row, false );
3680                 SelectRow( row + 1, true );
3681                 ChangeCurrentRow( row + 1 );
3682                 GetOwner()->EnsureVisible( row + 1, -1 );
3683                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3684             }
3685         }
3686         else
3687         {
3688             TryAdvanceCurrentColumn(node, /*forward=*/true);
3689         }
3690     }
3691 }
3692
3693 bool wxDataViewMainWindow::TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward)
3694 {
3695     if ( GetOwner()->GetColumnCount() == 0 )
3696         return false;
3697
3698     if ( !m_useCellFocus )
3699         return false;
3700
3701     if ( node )
3702     {
3703         // navigation shouldn't work in branch nodes without other columns:
3704         if ( node->HasChildren() && !GetModel()->HasContainerColumns(node->GetItem()) )
3705             return false;
3706     }
3707
3708     if ( m_currentCol == NULL || !m_currentColSetByKeyboard )
3709     {
3710         if ( forward )
3711         {
3712             m_currentCol = GetOwner()->GetColumnAt(1);
3713             m_currentColSetByKeyboard = true;
3714             RefreshRow(m_currentRow);
3715             return true;
3716         }
3717         else
3718             return false;
3719     }
3720
3721     int idx = GetOwner()->GetColumnIndex(m_currentCol) + (forward ? +1 : -1);
3722
3723     if ( idx >= (int)GetOwner()->GetColumnCount() )
3724         return false;
3725
3726     if ( idx < 1 )
3727     {
3728         // We are going to the left of the second column. Reset to whole-row
3729         // focus (which means first column would be edited).
3730         m_currentCol = NULL;
3731         RefreshRow(m_currentRow);
3732         return true;
3733     }
3734
3735     m_currentCol = GetOwner()->GetColumnAt(idx);
3736     m_currentColSetByKeyboard = true;
3737     RefreshRow(m_currentRow);
3738     return true;
3739 }
3740
3741 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3742 {
3743     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3744     {
3745         // let the base handle mouse wheel events.
3746         event.Skip();
3747         return;
3748     }
3749
3750     // set the focus to ourself if any of the mouse buttons are pressed
3751     if(event.ButtonDown() && !HasFocus())
3752         SetFocus();
3753
3754     int x = event.GetX();
3755     int y = event.GetY();
3756     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3757     wxDataViewColumn *col = NULL;
3758
3759     int xpos = 0;
3760     unsigned int cols = GetOwner()->GetColumnCount();
3761     unsigned int i;
3762     for (i = 0; i < cols; i++)
3763     {
3764         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3765         if (c->IsHidden())
3766             continue;      // skip it!
3767
3768         if (x < xpos + c->GetWidth())
3769         {
3770             col = c;
3771             break;
3772         }
3773         xpos += c->GetWidth();
3774     }
3775
3776     wxDataViewModel* const model = GetModel();
3777
3778     const unsigned int current = GetLineAt( y );
3779     const wxDataViewItem item = GetItemByRow(current);
3780
3781     // Handle right clicking here, before everything else as context menu
3782     // events should be sent even when we click outside of any item, unlike all
3783     // the other ones.
3784     if (event.RightUp())
3785     {
3786         wxWindow *parent = GetParent();
3787         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3788         le.SetEventObject(parent);
3789         le.SetModel(model);
3790
3791         if ( item.IsOk() && col )
3792         {
3793             le.SetItem( item );
3794             le.SetColumn( col->GetModelColumn() );
3795             le.SetDataViewColumn( col );
3796
3797             wxVariant value;
3798             model->GetValue( value, item, col->GetModelColumn() );
3799             le.SetValue(value);
3800         }
3801
3802         parent->ProcessWindowEvent(le);
3803         return;
3804     }
3805
3806     if (!col)
3807     {
3808         event.Skip();
3809         return;
3810     }
3811
3812     wxDataViewRenderer *cell = col->GetRenderer();
3813     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3814     {
3815         // Unselect all if below the last row ?
3816         event.Skip();
3817         return;
3818     }
3819
3820     wxDataViewColumn* const
3821         expander = GetExpanderColumnOrFirstOne(GetOwner());
3822
3823     // Test whether the mouse is hovering over the expander (a.k.a tree "+"
3824     // button) and also determine the offset of the real cell start, skipping
3825     // the indentation and the expander itself.
3826     bool hoverOverExpander = false;
3827     int itemOffset = 0;
3828     if ((!IsList()) && (expander == col))
3829     {
3830         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3831
3832         int indent = node->GetIndentLevel();
3833         itemOffset = GetOwner()->GetIndent()*indent;
3834
3835         if ( node->HasChildren() )
3836         {
3837             // we make the rectangle we are looking in a bit bigger than the actual
3838             // visual expander so the user can hit that little thing reliably
3839             wxRect rect(itemOffset,
3840                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3841                         m_lineHeight, m_lineHeight);
3842
3843             if( rect.Contains(x, y) )
3844             {
3845                 // So the mouse is over the expander
3846                 hoverOverExpander = true;
3847                 if (m_underMouse && m_underMouse != node)
3848                 {
3849                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3850                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3851                 }
3852                 if (m_underMouse != node)
3853                 {
3854                     // wxLogMessage("Do the row: %d", current);
3855                     RefreshRow(current);
3856                 }
3857                 m_underMouse = node;
3858             }
3859         }
3860
3861         // Account for the expander as well, even if this item doesn't have it,
3862         // its parent does so it still counts for the offset.
3863         itemOffset += m_lineHeight;
3864     }
3865     if (!hoverOverExpander)
3866     {
3867         if (m_underMouse != NULL)
3868         {
3869             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3870             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3871             m_underMouse = NULL;
3872         }
3873     }
3874
3875 #if wxUSE_DRAG_AND_DROP
3876     if (event.Dragging())
3877     {
3878         if (m_dragCount == 0)
3879         {
3880             // we have to report the raw, physical coords as we want to be
3881             // able to call HitTest(event.m_pointDrag) from the user code to
3882             // get the item being dragged
3883             m_dragStart = event.GetPosition();
3884         }
3885
3886         m_dragCount++;
3887
3888         if (m_dragCount != 3)
3889             return;
3890
3891         if (event.LeftIsDown())
3892         {
3893             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3894                                              &m_dragStart.x, &m_dragStart.y );
3895             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3896             wxDataViewItem itemDragged = GetItemByRow( drag_item_row );
3897
3898             // Notify cell about drag
3899             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3900             event.SetEventObject( m_owner );
3901             event.SetItem( itemDragged );
3902             event.SetModel( model );
3903             if (!m_owner->HandleWindowEvent( event ))
3904                 return;
3905
3906             if (!event.IsAllowed())
3907                 return;
3908
3909             wxDataObject *obj = event.GetDataObject();
3910             if (!obj)
3911                 return;
3912
3913             wxDataViewDropSource drag( this, drag_item_row );
3914             drag.SetData( *obj );
3915             /* wxDragResult res = */ drag.DoDragDrop();
3916             delete obj;
3917         }
3918         return;
3919     }
3920     else
3921     {
3922         m_dragCount = 0;
3923     }
3924 #endif // wxUSE_DRAG_AND_DROP
3925
3926     bool simulateClick = false;
3927
3928     if (event.ButtonDClick())
3929     {
3930         m_renameTimer->Stop();
3931         m_lastOnSame = false;
3932     }
3933
3934     bool ignore_other_columns =
3935         ((expander != col) &&
3936         (model->IsContainer(item)) &&
3937         (!model->HasContainerColumns(item)));
3938
3939     if (event.LeftDClick())
3940     {
3941         if(hoverOverExpander)
3942         {
3943             // a double click on the expander will be converted into a "simulated" normal click
3944             simulateClick = true;
3945         }
3946         else if ( current == m_lineLastClicked )
3947         {
3948             wxWindow *parent = GetParent();
3949             wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3950             le.SetItem( item );
3951             le.SetColumn( col->GetModelColumn() );
3952             le.SetDataViewColumn( col );
3953             le.SetEventObject(parent);
3954             le.SetModel(GetModel());
3955
3956             parent->ProcessWindowEvent(le);
3957             return;
3958         }
3959         else
3960         {
3961             // The first click was on another item, so don't interpret this as
3962             // a double click, but as a simple click instead
3963             simulateClick = true;
3964         }
3965     }
3966
3967     if (event.LeftUp() && !hoverOverExpander)
3968     {
3969         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3970         {
3971             // select single line
3972             SelectAllRows( false );
3973             SelectRow( m_lineSelectSingleOnUp, true );
3974             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3975         }
3976
3977         // If the user click the expander, we do not do editing even if the column
3978         // with expander are editable
3979         if (m_lastOnSame && !ignore_other_columns)
3980         {
3981             if ((col == m_currentCol) && (current == m_currentRow) &&
3982                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3983             {
3984                 m_renameTimer->Start( 100, true );
3985             }
3986         }
3987
3988         m_lastOnSame = false;
3989         m_lineSelectSingleOnUp = (unsigned int)-1;
3990     }
3991     else if(!event.LeftUp())
3992     {
3993         // This is necessary, because after a DnD operation in
3994         // from and to ourself, the up event is swallowed by the
3995         // DnD code. So on next non-up event (which means here and
3996         // now) m_lineSelectSingleOnUp should be reset.
3997         m_lineSelectSingleOnUp = (unsigned int)-1;
3998     }
3999
4000     if (event.RightDown())
4001     {
4002         m_lineBeforeLastClicked = m_lineLastClicked;
4003         m_lineLastClicked = current;
4004
4005         // If the item is already selected, do not update the selection.
4006         // Multi-selections should not be cleared if a selected item is clicked.
4007         if (!IsRowSelected(current))
4008         {
4009             SelectAllRows(false);
4010             const unsigned oldCurrent = m_currentRow;
4011             ChangeCurrentRow(current);
4012             SelectRow(m_currentRow,true);
4013             RefreshRow(oldCurrent);
4014             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4015         }
4016     }
4017     else if (event.MiddleDown())
4018     {
4019     }
4020
4021     if((event.LeftDown() || simulateClick) && hoverOverExpander)
4022     {
4023         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
4024
4025         // hoverOverExpander being true tells us that our node must be
4026         // valid and have children.
4027         // So we don't need any extra checks.
4028         if( node->IsOpen() )
4029             Collapse(current);
4030         else
4031             Expand(current);
4032     }
4033     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
4034     {
4035         m_lineBeforeLastClicked = m_lineLastClicked;
4036         m_lineLastClicked = current;
4037
4038         unsigned int oldCurrentRow = m_currentRow;
4039         bool oldWasSelected = IsRowSelected(m_currentRow);
4040
4041         bool cmdModifierDown = event.CmdDown();
4042         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
4043         {
4044             if ( IsSingleSel() || !IsRowSelected(current) )
4045             {
4046                 SelectAllRows( false );
4047                 ChangeCurrentRow(current);
4048                 SelectRow(m_currentRow,true);
4049                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4050             }
4051             else // multi sel & current is highlighted & no mod keys
4052             {
4053                 m_lineSelectSingleOnUp = current;
4054                 ChangeCurrentRow(current); // change focus
4055             }
4056         }
4057         else // multi sel & either ctrl or shift is down
4058         {
4059             if (cmdModifierDown)
4060             {
4061                 ChangeCurrentRow(current);
4062                 ReverseRowSelection(m_currentRow);
4063                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
4064             }
4065             else if (event.ShiftDown())
4066             {
4067                 ChangeCurrentRow(current);
4068
4069                 unsigned int lineFrom = oldCurrentRow,
4070                     lineTo = current;
4071
4072                 if ( lineTo < lineFrom )
4073                 {
4074                     lineTo = lineFrom;
4075                     lineFrom = m_currentRow;
4076                 }
4077
4078                 SelectRows(lineFrom, lineTo, true);
4079                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
4080             }
4081             else // !ctrl, !shift
4082             {
4083                 // test in the enclosing if should make it impossible
4084                 wxFAIL_MSG( wxT("how did we get here?") );
4085             }
4086         }
4087
4088         if (m_currentRow != oldCurrentRow)
4089             RefreshRow( oldCurrentRow );
4090
4091         wxDataViewColumn *oldCurrentCol = m_currentCol;
4092
4093         // Update selection here...
4094         m_currentCol = col;
4095         m_currentColSetByKeyboard = false;
4096
4097         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
4098                         (current == oldCurrentRow)) && oldWasSelected;
4099
4100         // Call ActivateCell() after everything else as under GTK+
4101         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
4102         {
4103             // notify cell about click
4104             cell->PrepareForItem(model, item, col->GetModelColumn());
4105
4106             wxRect cell_rect( xpos + itemOffset,
4107                               GetLineStart( current ),
4108                               col->GetWidth() - itemOffset,
4109                               GetLineHeight( current ) );
4110
4111             // Report position relative to the cell's custom area, i.e.
4112             // no the entire space as given by the control but the one
4113             // used by the renderer after calculation of alignment etc.
4114
4115             // adjust the rectangle ourselves to account for the alignment
4116             wxRect rectItem = cell_rect;
4117             const int align = cell->GetAlignment();
4118             if ( align != wxDVR_DEFAULT_ALIGNMENT )
4119             {
4120                 const wxSize size = cell->GetSize();
4121
4122                 if ( size.x >= 0 && size.x < cell_rect.width )
4123                 {
4124                     if ( align & wxALIGN_CENTER_HORIZONTAL )
4125                         rectItem.x += (cell_rect.width - size.x)/2;
4126                     else if ( align & wxALIGN_RIGHT )
4127                         rectItem.x += cell_rect.width - size.x;
4128                     // else: wxALIGN_LEFT is the default
4129                 }
4130
4131                 if ( size.y >= 0 && size.y < cell_rect.height )
4132                 {
4133                     if ( align & wxALIGN_CENTER_VERTICAL )
4134                         rectItem.y += (cell_rect.height - size.y)/2;
4135                     else if ( align & wxALIGN_BOTTOM )
4136                         rectItem.y += cell_rect.height - size.y;
4137                     // else: wxALIGN_TOP is the default
4138                 }
4139             }
4140
4141             wxMouseEvent event2(event);
4142             event2.m_x -= rectItem.x;
4143             event2.m_y -= rectItem.y;
4144             m_owner->CalcUnscrolledPosition(event2.m_x, event2.m_y, &event2.m_x, &event2.m_y);
4145
4146              /* ignore ret */ cell->WXActivateCell
4147                                     (
4148                                         cell_rect,
4149                                         model,
4150                                         item,
4151                                         col->GetModelColumn(),
4152                                         &event2
4153                                     );
4154         }
4155     }
4156 }
4157
4158 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
4159 {
4160     m_hasFocus = true;
4161
4162     if (HasCurrentRow())
4163         Refresh();
4164
4165     event.Skip();
4166 }
4167
4168 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
4169 {
4170     m_hasFocus = false;
4171
4172     if (HasCurrentRow())
4173         Refresh();
4174
4175     event.Skip();
4176 }
4177
4178 void wxDataViewMainWindow::OnColumnsCountChanged()
4179 {
4180     int editableCount = 0;
4181
4182     const unsigned cols = GetOwner()->GetColumnCount();
4183     for ( unsigned i = 0; i < cols; i++ )
4184     {
4185         wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
4186         if ( c->IsHidden() )
4187             continue;
4188         if ( c->GetRenderer()->GetMode() != wxDATAVIEW_CELL_INERT )
4189             editableCount++;
4190     }
4191
4192     m_useCellFocus = (editableCount > 1);
4193
4194     UpdateDisplay();
4195 }
4196
4197 //-----------------------------------------------------------------------------
4198 // wxDataViewCtrl
4199 //-----------------------------------------------------------------------------
4200
4201 WX_DEFINE_LIST(wxDataViewColumnList)
4202
4203 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
4204 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
4205     EVT_SIZE(wxDataViewCtrl::OnSize)
4206 END_EVENT_TABLE()
4207
4208 wxDataViewCtrl::~wxDataViewCtrl()
4209 {
4210     if (m_notifier)
4211         GetModel()->RemoveNotifier( m_notifier );
4212
4213     m_cols.Clear();
4214     m_colsBestWidths.clear();
4215 }
4216
4217 void wxDataViewCtrl::Init()
4218 {
4219     m_cols.DeleteContents(true);
4220     m_notifier = NULL;
4221
4222     // No sorting column at start
4223     m_sortingColumnIdx = wxNOT_FOUND;
4224
4225     m_headerArea = NULL;
4226
4227     m_colsDirty = false;
4228 }
4229
4230 bool wxDataViewCtrl::Create(wxWindow *parent,
4231                             wxWindowID id,
4232                             const wxPoint& pos,
4233                             const wxSize& size,
4234                             long style,
4235                             const wxValidator& validator,
4236                             const wxString& name)
4237 {
4238 //    if ( (style & wxBORDER_MASK) == 0)
4239 //        style |= wxBORDER_SUNKEN;
4240
4241     Init();
4242
4243     if (!wxControl::Create( parent, id, pos, size,
4244                             style | wxScrolledWindowStyle, validator, name))
4245         return false;
4246
4247     SetInitialSize(size);
4248
4249 #ifdef __WXMAC__
4250     MacSetClipChildren( true );
4251 #endif
4252
4253     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4254
4255     // We use the cursor keys for moving the selection, not scrolling, so call
4256     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4257     // keyboard events forwarded to us from wxListMainWindow.
4258     DisableKeyboardScrolling();
4259
4260     if (HasFlag(wxDV_NO_HEADER))
4261         m_headerArea = NULL;
4262     else
4263         m_headerArea = new wxDataViewHeaderWindow(this);
4264
4265     SetTargetWindow( m_clientArea );
4266
4267     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4268     if (m_headerArea)
4269         sizer->Add( m_headerArea, 0, wxGROW );
4270     sizer->Add( m_clientArea, 1, wxGROW );
4271     SetSizer( sizer );
4272
4273     return true;
4274 }
4275
4276 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4277 {
4278     return wxBORDER_THEME;
4279 }
4280
4281 #ifdef __WXMSW__
4282 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4283                                         WXWPARAM wParam,
4284                                         WXLPARAM lParam)
4285 {
4286     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4287
4288 #ifndef __WXWINCE__
4289     // we need to process arrows ourselves for scrolling
4290     if ( nMsg == WM_GETDLGCODE )
4291     {
4292         rc |= DLGC_WANTARROWS;
4293     }
4294 #endif
4295
4296     return rc;
4297 }
4298 #endif
4299
4300 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4301 {
4302     wxSize newsize = size;
4303     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4304     newsize.y -= m_headerArea->GetSize().y;
4305
4306     return newsize;
4307 }
4308
4309 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4310 {
4311     // We need to override OnSize so that our scrolled
4312     // window a) does call Layout() to use sizers for
4313     // positioning the controls but b) does not query
4314     // the sizer for their size and use that for setting
4315     // the scrollable area as set that ourselves by
4316     // calling SetScrollbar() further down.
4317
4318     Layout();
4319
4320     AdjustScrollbars();
4321
4322     // We must redraw the headers if their height changed. Normally this
4323     // shouldn't happen as the control shouldn't let itself be resized beneath
4324     // its minimal height but avoid the display artefacts that appear if it
4325     // does happen, e.g. because there is really not enough vertical space.
4326     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4327             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4328     {
4329         m_headerArea->Refresh();
4330     }
4331 }
4332
4333 void wxDataViewCtrl::SetFocus()
4334 {
4335     if (m_clientArea)
4336         m_clientArea->SetFocus();
4337 }
4338
4339 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4340 {
4341     if (!wxDataViewCtrlBase::AssociateModel( model ))
4342         return false;
4343
4344     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4345
4346     model->AddNotifier( m_notifier );
4347
4348     m_clientArea->DestroyTree();
4349
4350     m_clientArea->BuildTree(model);
4351
4352     m_clientArea->UpdateDisplay();
4353
4354     return true;
4355 }
4356
4357 #if wxUSE_DRAG_AND_DROP
4358
4359 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4360 {
4361     return m_clientArea->EnableDragSource( format );
4362 }
4363
4364 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4365 {
4366     return m_clientArea->EnableDropTarget( format );
4367 }
4368
4369 #endif // wxUSE_DRAG_AND_DROP
4370
4371 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4372 {
4373     if (!wxDataViewCtrlBase::AppendColumn(col))
4374         return false;
4375
4376     m_cols.Append( col );
4377     m_colsBestWidths.push_back(0);
4378     OnColumnsCountChanged();
4379     return true;
4380 }
4381
4382 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4383 {
4384     if (!wxDataViewCtrlBase::PrependColumn(col))
4385         return false;
4386
4387     m_cols.Insert( col );
4388     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4389     OnColumnsCountChanged();
4390     return true;
4391 }
4392
4393 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4394 {
4395     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4396         return false;
4397
4398     m_cols.Insert( pos, col );
4399     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4400     OnColumnsCountChanged();
4401     return true;
4402 }
4403
4404 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4405 {
4406     if ( m_headerArea )
4407         m_headerArea->UpdateColumn(idx);
4408
4409     m_clientArea->UpdateDisplay();
4410 }
4411
4412 void wxDataViewCtrl::OnColumnsCountChanged()
4413 {
4414     if (m_headerArea)
4415         m_headerArea->SetColumnCount(GetColumnCount());
4416
4417     m_clientArea->OnColumnsCountChanged();
4418 }
4419
4420 void wxDataViewCtrl::DoSetExpanderColumn()
4421 {
4422     m_clientArea->UpdateDisplay();
4423 }
4424
4425 void wxDataViewCtrl::DoSetIndent()
4426 {
4427     m_clientArea->UpdateDisplay();
4428 }
4429
4430 unsigned int wxDataViewCtrl::GetColumnCount() const
4431 {
4432     return m_cols.GetCount();
4433 }
4434
4435 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4436 {
4437     if ( !m_clientArea )
4438         return false;
4439
4440     m_clientArea->SetRowHeight(lineHeight);
4441
4442     return true;
4443 }
4444
4445 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4446 {
4447     return m_cols[idx];
4448 }
4449
4450 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4451 {
4452     // columns can't be reordered if there is no header window which allows
4453     // to do this
4454     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4455                                     : pos;
4456
4457     return GetColumn(idx);
4458 }
4459
4460 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4461 {
4462     const unsigned count = m_cols.size();
4463     for ( unsigned n = 0; n < count; n++ )
4464     {
4465         if ( m_cols[n] == column )
4466             return n;
4467     }
4468
4469     return wxNOT_FOUND;
4470 }
4471
4472 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4473 {
4474     if ( m_colsBestWidths[idx] != 0 )
4475         return m_colsBestWidths[idx];
4476
4477     const int count = m_clientArea->GetRowCount();
4478     wxDataViewColumn *column = GetColumn(idx);
4479     wxDataViewRenderer *renderer =
4480         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4481
4482     class MaxWidthCalculator
4483     {
4484     public:
4485         MaxWidthCalculator(const wxDataViewCtrl *dvc,
4486                            wxDataViewMainWindow *clientArea,
4487                            wxDataViewRenderer *renderer,
4488                            const wxDataViewModel *model,
4489                            unsigned column,
4490                            int expanderSize)
4491             : m_width(0),
4492               m_dvc(dvc),
4493               m_clientArea(clientArea),
4494               m_renderer(renderer),
4495               m_model(model),
4496               m_column(column),
4497               m_expanderSize(expanderSize)
4498
4499         {
4500             m_isExpanderCol =
4501                 !clientArea->IsList() &&
4502                 (column == 0 ||
4503                  GetExpanderColumnOrFirstOne(const_cast<wxDataViewCtrl*>(dvc)) == dvc->GetColumnAt(column));
4504         }
4505
4506         void UpdateWithWidth(int width)
4507         {
4508             m_width = wxMax(m_width, width);
4509         }
4510
4511         void UpdateWithRow(int row)
4512         {
4513             int indent = 0;
4514             wxDataViewItem item;
4515
4516             if ( m_isExpanderCol )
4517             {
4518                 wxDataViewTreeNode *node = m_clientArea->GetTreeNodeByRow(row);
4519                 item = node->GetItem();
4520                 indent = m_dvc->GetIndent() * node->GetIndentLevel() + m_expanderSize;
4521             }
4522             else
4523             {
4524                 item = m_clientArea->GetItemByRow(row);
4525             }
4526
4527             m_renderer->PrepareForItem(m_model, item, m_column);
4528             m_width = wxMax(m_width, m_renderer->GetSize().x + indent);
4529         }
4530
4531         int GetMaxWidth() const { return m_width; }
4532
4533     private:
4534         int m_width;
4535         const wxDataViewCtrl *m_dvc;
4536         wxDataViewMainWindow *m_clientArea;
4537         wxDataViewRenderer *m_renderer;
4538         const wxDataViewModel *m_model;
4539         unsigned m_column;
4540         bool m_isExpanderCol;
4541         int m_expanderSize;
4542     };
4543
4544     MaxWidthCalculator calculator(this, m_clientArea, renderer,
4545                                   GetModel(), column->GetModelColumn(),
4546                                   m_clientArea->GetRowHeight());
4547
4548     if ( m_headerArea )
4549     {
4550         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4551         // Labels on native MSW header are indented on both sides
4552         header_width +=
4553             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4554         calculator.UpdateWithWidth(header_width);
4555     }
4556
4557     // The code below deserves some explanation. For very large controls, we
4558     // simply can't afford to calculate sizes for all items, it takes too
4559     // long. So the best we can do is to check the first and the last N/2
4560     // items in the control for some sufficiently large N and calculate best
4561     // sizes from that. That can result in the calculated best width being too
4562     // small for some outliers, but it's better to get slightly imperfect
4563     // result than to wait several seconds after every update. To avoid highly
4564     // visible miscalculations, we also include all currently visible items
4565     // no matter what.  Finally, the value of N is determined dynamically by
4566     // measuring how much time we spent on the determining item widths so far.
4567
4568 #if wxUSE_STOPWATCH
4569     int top_part_end = count;
4570     static const long CALC_TIMEOUT = 20/*ms*/;
4571     // don't call wxStopWatch::Time() too often
4572     static const unsigned CALC_CHECK_FREQ = 100;
4573     wxStopWatch timer;
4574 #else
4575     // use some hard-coded limit, that's the best we can do without timer
4576     int top_part_end = wxMin(500, count);
4577 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4578
4579     int row = 0;
4580
4581     for ( row = 0; row < top_part_end; row++ )
4582     {
4583 #if wxUSE_STOPWATCH
4584         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4585              timer.Time() > CALC_TIMEOUT )
4586             break;
4587 #endif // wxUSE_STOPWATCH
4588         calculator.UpdateWithRow(row);
4589     }
4590
4591     // row is the first unmeasured item now; that's our value of N/2
4592
4593     if ( row < count )
4594     {
4595         top_part_end = row;
4596
4597         // add bottom N/2 items now:
4598         const int bottom_part_start = wxMax(row, count - row);
4599         for ( row = bottom_part_start; row < count; row++ )
4600         {
4601             calculator.UpdateWithRow(row);
4602         }
4603
4604         // finally, include currently visible items in the calculation:
4605         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4606         int first_visible = m_clientArea->GetLineAt(origin.y);
4607         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4608
4609         first_visible = wxMax(first_visible, top_part_end);
4610         last_visible = wxMin(bottom_part_start, last_visible);
4611
4612         for ( row = first_visible; row < last_visible; row++ )
4613         {
4614             calculator.UpdateWithRow(row);
4615         }
4616
4617         wxLogTrace("dataview",
4618                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4619                    top_part_end,
4620                    count - bottom_part_start,
4621                    wxMax(0, last_visible - first_visible),
4622                    count);
4623     }
4624
4625     int max_width = calculator.GetMaxWidth();
4626     if ( max_width > 0 )
4627         max_width += 2 * PADDING_RIGHTLEFT;
4628
4629     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4630     return max_width;
4631 }
4632
4633 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4634                                 unsigned int WXUNUSED(new_pos))
4635 {
4636     // do _not_ reorder m_cols elements here, they should always be in the
4637     // order in which columns were added, we only display the columns in
4638     // different order
4639     m_clientArea->UpdateDisplay();
4640 }
4641
4642 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4643 {
4644     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4645     if (!ret)
4646         return false;
4647
4648     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4649     m_cols.Erase(ret);
4650     OnColumnsCountChanged();
4651
4652     return true;
4653 }
4654
4655 bool wxDataViewCtrl::ClearColumns()
4656 {
4657     SetExpanderColumn(NULL);
4658     m_cols.Clear();
4659     m_colsBestWidths.clear();
4660     OnColumnsCountChanged();
4661     return true;
4662 }
4663
4664 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4665 {
4666     m_colsBestWidths[idx] = 0;
4667     m_colsDirty = true;
4668 }
4669
4670 void wxDataViewCtrl::InvalidateColBestWidths()
4671 {
4672     m_colsBestWidths.clear();
4673     m_colsBestWidths.resize(m_cols.size());
4674     m_colsDirty = true;
4675 }
4676
4677 void wxDataViewCtrl::UpdateColWidths()
4678 {
4679     if ( !m_headerArea )
4680         return;
4681
4682     const unsigned len = m_colsBestWidths.size();
4683     for ( unsigned i = 0; i < len; i++ )
4684     {
4685         if ( m_colsBestWidths[i] == 0 )
4686             m_headerArea->UpdateColumn(i);
4687     }
4688 }
4689
4690 void wxDataViewCtrl::OnInternalIdle()
4691 {
4692     wxDataViewCtrlBase::OnInternalIdle();
4693
4694     if ( m_colsDirty )
4695     {
4696         m_colsDirty = false;
4697         UpdateColWidths();
4698     }
4699 }
4700
4701 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4702 {
4703 #if 1
4704     unsigned int len = GetColumnCount();
4705     for ( unsigned int i = 0; i < len; i++ )
4706     {
4707         wxDataViewColumn * col = GetColumnAt(i);
4708         if (column==col)
4709             return i;
4710     }
4711
4712     return wxNOT_FOUND;
4713 #else
4714     // This returns the position in pixels which is not what we want.
4715     int ret = 0,
4716         dummy = 0;
4717     unsigned int len = GetColumnCount();
4718     for ( unsigned int i = 0; i < len; i++ )
4719     {
4720         wxDataViewColumn * col = GetColumnAt(i);
4721         if (col->IsHidden())
4722             continue;
4723         ret += col->GetWidth();
4724         if (column==col)
4725         {
4726             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4727             break;
4728         }
4729     }
4730     return ret;
4731 #endif
4732 }
4733
4734 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4735 {
4736     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4737                                             : GetColumn(m_sortingColumnIdx);
4738 }
4739
4740 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4741 {
4742     return GetItemByRow(m_clientArea->GetCurrentRow());
4743 }
4744
4745 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4746 {
4747     const int row = m_clientArea->GetRowByItem(item);
4748
4749     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4750     if ( static_cast<unsigned>(row) != oldCurrent )
4751     {
4752         m_clientArea->ChangeCurrentRow(row);
4753         m_clientArea->RefreshRow(oldCurrent);
4754         m_clientArea->RefreshRow(row);
4755     }
4756 }
4757
4758 int wxDataViewCtrl::GetSelectedItemsCount() const
4759 {
4760     return m_clientArea->GetSelections().size();
4761 }
4762
4763 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4764 {
4765     sel.Empty();
4766     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4767
4768     const size_t len = selections.size();
4769     for ( size_t i = 0; i < len; i++ )
4770     {
4771         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4772         if ( item.IsOk() )
4773         {
4774             sel.Add(item);
4775         }
4776         else
4777         {
4778             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4779         }
4780     }
4781
4782     return sel.size();
4783 }
4784
4785 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4786 {
4787     wxDataViewSelection selection(wxDataViewSelectionCmp);
4788
4789     wxDataViewItem last_parent;
4790
4791     int len = sel.GetCount();
4792     for( int i = 0; i < len; i ++ )
4793     {
4794         wxDataViewItem item = sel[i];
4795         wxDataViewItem parent = GetModel()->GetParent( item );
4796         if (parent)
4797         {
4798             if (parent != last_parent)
4799                 ExpandAncestors(item);
4800         }
4801
4802         last_parent = parent;
4803         int row = m_clientArea->GetRowByItem( item );
4804         if( row >= 0 )
4805             selection.Add( static_cast<unsigned int>(row) );
4806     }
4807
4808     m_clientArea->SetSelections( selection );
4809 }
4810
4811 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4812 {
4813     ExpandAncestors( item );
4814
4815     int row = m_clientArea->GetRowByItem( item );
4816     if( row >= 0 )
4817     {
4818         // Unselect all rows before select another in the single select mode
4819         if (m_clientArea->IsSingleSel())
4820             m_clientArea->SelectAllRows(false);
4821
4822         m_clientArea->SelectRow(row, true);
4823
4824         // Also set focus to the selected item
4825         m_clientArea->ChangeCurrentRow( row );
4826     }
4827 }
4828
4829 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4830 {
4831     int row = m_clientArea->GetRowByItem( item );
4832     if( row >= 0 )
4833         m_clientArea->SelectRow(row, false);
4834 }
4835
4836 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4837 {
4838     int row = m_clientArea->GetRowByItem( item );
4839     if( row >= 0 )
4840     {
4841         return m_clientArea->IsRowSelected(row);
4842     }
4843     return false;
4844 }
4845
4846 void wxDataViewCtrl::SelectAll()
4847 {
4848     m_clientArea->SelectAllRows(true);
4849 }
4850
4851 void wxDataViewCtrl::UnselectAll()
4852 {
4853     m_clientArea->SelectAllRows(false);
4854 }
4855
4856 void wxDataViewCtrl::EnsureVisible( int row, int column )
4857 {
4858     if( row < 0 )
4859         row = 0;
4860     if( row > (int) m_clientArea->GetRowCount() )
4861         row = m_clientArea->GetRowCount();
4862
4863     int first = m_clientArea->GetFirstVisibleRow();
4864     int last = m_clientArea->GetLastVisibleRow();
4865     if( row < first )
4866         m_clientArea->ScrollTo( row, column );
4867     else if( row > last )
4868         m_clientArea->ScrollTo( row - last + first, column );
4869     else
4870         m_clientArea->ScrollTo( first, column );
4871 }
4872
4873 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4874 {
4875     ExpandAncestors( item );
4876
4877     m_clientArea->RecalculateDisplay();
4878
4879     int row = m_clientArea->GetRowByItem(item);
4880     if( row >= 0 )
4881     {
4882         if( column == NULL )
4883             EnsureVisible(row, -1);
4884         else
4885             EnsureVisible( row, GetColumnIndex(column) );
4886     }
4887
4888 }
4889
4890 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4891                               wxDataViewColumn* &column ) const
4892 {
4893     m_clientArea->HitTest(point, item, column);
4894 }
4895
4896 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4897                                     const wxDataViewColumn* column ) const
4898 {
4899     return m_clientArea->GetItemRect(item, column);
4900 }
4901
4902 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4903 {
4904     return m_clientArea->GetItemByRow( row );
4905 }
4906
4907 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4908 {
4909     return m_clientArea->GetRowByItem( item );
4910 }
4911
4912 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4913 {
4914     ExpandAncestors( item );
4915
4916     int row = m_clientArea->GetRowByItem( item );
4917     if (row != -1)
4918         m_clientArea->Expand(row);
4919 }
4920
4921 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4922 {
4923     int row = m_clientArea->GetRowByItem( item );
4924     if (row != -1)
4925         m_clientArea->Collapse(row);
4926 }
4927
4928 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4929 {
4930     int row = m_clientArea->GetRowByItem( item );
4931     if (row != -1)
4932         return m_clientArea->IsExpanded(row);
4933     return false;
4934 }
4935
4936 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4937 {
4938     wxDataViewColumn* col = GetColumn( column );
4939     if (!col)
4940         return;
4941
4942     wxDataViewRenderer* renderer = col->GetRenderer();
4943     if (renderer->GetMode() != wxDATAVIEW_CELL_EDITABLE)
4944         return;
4945
4946     const wxRect itemRect = GetItemRect(item, col);
4947     renderer->StartEditing(item, itemRect);
4948 }
4949
4950 #endif // !wxUSE_GENERICDATAVIEWCTRL
4951
4952 #endif // wxUSE_DATAVIEWCTRL