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 #include "wx/weakref.h"
  52
  53 //-----------------------------------------------------------------------------
  54 // classes
  55 //-----------------------------------------------------------------------------
  56
  57 class wxDataViewColumn;
  58 class wxDataViewHeaderWindow;
  59 class wxDataViewCtrl;
  60
  61 //-----------------------------------------------------------------------------
  62 // classes
  63 //-----------------------------------------------------------------------------
  64
  65 static const int SCROLL_UNIT_X = 15;
  66
  67 // the cell padding on the left/right
  68 static const int PADDING_RIGHTLEFT = 3;
  69
  70 // the expander space margin
  71 static const int EXPANDER_MARGIN = 4;
  72
  73 #ifdef __WXMSW__
  74 static const int EXPANDER_OFFSET = 4;
  75 #else
  76 static const int EXPANDER_OFFSET = 1;
  77 #endif
  78
  79 // Below is the compare stuff.
  80 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  81 // fast search when needed
  82 static wxDataViewModel* g_model;
  83 static int g_column = -2;
  84 static bool g_asending = true;
  85
  86 // ----------------------------------------------------------------------------
  87 // helper functions
  88 // ----------------------------------------------------------------------------
  89
  90 namespace
  91 {
  92
  93 // Return the expander column or, if it is not set, the first column and also
  94 // set it as the expander one for the future.
  95 wxDataViewColumn* GetExpanderColumnOrFirstOne(wxDataViewCtrl* dataview)
  96 {
  97     wxDataViewColumn* expander = dataview->GetExpanderColumn();
  98     if (!expander)
  99     {
 100         // TODO-RTL: last column for RTL support
 101         expander = dataview->GetColumnAt( 0 );
 102         dataview->SetExpanderColumn(expander);
 103     }
 104
 105     return expander;
 106 }
 107
 108 } // anonymous namespace
 109
 110 //-----------------------------------------------------------------------------
 111 // wxDataViewColumn
 112 //-----------------------------------------------------------------------------
 113
 114 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
 115 {
 116     m_width = width;
 117     m_minWidth = 0;
 118     m_align = align;
 119     m_flags = flags;
 120     m_sort = false;
 121     m_sortAscending = true;
 122 }
 123
 124 int wxDataViewColumn::GetWidth() const
 125 {
 126     switch ( m_width )
 127     {
 128         case wxCOL_WIDTH_DEFAULT:
 129             return wxDVC_DEFAULT_WIDTH;
 130
 131         case wxCOL_WIDTH_AUTOSIZE:
 132             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 133             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 134
 135         default:
 136             return m_width;
 137     }
 138 }
 139
 140 void wxDataViewColumn::UpdateDisplay()
 141 {
 142     if (m_owner)
 143     {
 144         int idx = m_owner->GetColumnIndex( this );
 145         m_owner->OnColumnChange( idx );
 146     }
 147 }
 148
 149 void wxDataViewColumn::SetSortOrder(bool ascending)
 150 {
 151     if ( !m_owner )
 152         return;
 153
 154     // First unset the old sort column if any.
 155     int oldSortKey = m_owner->GetSortingColumnIndex();
 156     if ( oldSortKey != wxNOT_FOUND )
 157     {
 158         m_owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 159     }
 160
 161     // Now set this one as the new sort column.
 162     const int idx = m_owner->GetColumnIndex(this);
 163     m_owner->SetSortingColumnIndex(idx);
 164
 165     m_sort = true;
 166     m_sortAscending = ascending;
 167
 168     // Call this directly instead of using UpdateDisplay() as we already have
 169     // the column index, no need to look it up again.
 170     m_owner->OnColumnChange(idx);
 171 }
 172
 173 //-----------------------------------------------------------------------------
 174 // wxDataViewHeaderWindow
 175 //-----------------------------------------------------------------------------
 176
 177 class wxDataViewHeaderWindow : public wxHeaderCtrl
 178 {
 179 public:
 180     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 181         : wxHeaderCtrl(parent)
 182     {
 183     }
 184
 185     wxDataViewCtrl *GetOwner() const
 186         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 187
 188 protected:
 189     // implement/override wxHeaderCtrl functions by forwarding them to the main
 190     // control
 191     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 192     {
 193         return *(GetOwner()->GetColumn(idx));
 194     }
 195
 196     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 197     {
 198         wxDataViewCtrl * const owner = GetOwner();
 199
 200         int widthContents = owner->GetBestColumnWidth(idx);
 201         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 202         owner->OnColumnChange(idx);
 203
 204         return true;
 205     }
 206
 207 private:
 208     bool SendEvent(wxEventType type, unsigned int n)
 209     {
 210         wxDataViewCtrl * const owner = GetOwner();
 211         wxDataViewEvent event(type, owner->GetId());
 212
 213         event.SetEventObject(owner);
 214         event.SetColumn(n);
 215         event.SetDataViewColumn(owner->GetColumn(n));
 216         event.SetModel(owner->GetModel());
 217
 218         // for events created by wxDataViewHeaderWindow the
 219         // row / value fields are not valid
 220         return owner->ProcessWindowEvent(event);
 221     }
 222
 223     void OnClick(wxHeaderCtrlEvent& event)
 224     {
 225         const unsigned idx = event.GetColumn();
 226
 227         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 228             return;
 229
 230         // default handling for the column click is to sort by this column or
 231         // toggle its sort order
 232         wxDataViewCtrl * const owner = GetOwner();
 233         wxDataViewColumn * const col = owner->GetColumn(idx);
 234         if ( !col->IsSortable() )
 235         {
 236             // no default handling for non-sortable columns
 237             event.Skip();
 238             return;
 239         }
 240
 241         if ( col->IsSortKey() )
 242         {
 243             // already using this column for sorting, just change the order
 244             col->ToggleSortOrder();
 245         }
 246         else // not using this column for sorting yet
 247         {
 248             col->SetSortOrder(true);
 249         }
 250
 251         wxDataViewModel * const model = owner->GetModel();
 252         if ( model )
 253             model->Resort();
 254
 255         owner->OnColumnChange(idx);
 256
 257         SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
 258     }
 259
 260     void OnRClick(wxHeaderCtrlEvent& event)
 261     {
 262         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 263                         event.GetColumn()) )
 264             event.Skip();
 265     }
 266
 267     void OnResize(wxHeaderCtrlEvent& event)
 268     {
 269         wxDataViewCtrl * const owner = GetOwner();
 270
 271         const unsigned col = event.GetColumn();
 272         owner->GetColumn(col)->SetWidth(event.GetWidth());
 273         GetOwner()->OnColumnChange(col);
 274     }
 275
 276     void OnEndReorder(wxHeaderCtrlEvent& event)
 277     {
 278         wxDataViewCtrl * const owner = GetOwner();
 279         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 280                         event.GetNewOrder());
 281     }
 282
 283     DECLARE_EVENT_TABLE()
 284     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 285 };
 286
 287 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 288     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 289     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 290
 291     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 292     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 293
 294     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 295 END_EVENT_TABLE()
 296
 297 //-----------------------------------------------------------------------------
 298 // wxDataViewRenameTimer
 299 //-----------------------------------------------------------------------------
 300
 301 class wxDataViewRenameTimer: public wxTimer
 302 {
 303 private:
 304     wxDataViewMainWindow *m_owner;
 305
 306 public:
 307     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 308     void Notify();
 309 };
 310
 311 //-----------------------------------------------------------------------------
 312 // wxDataViewTreeNode
 313 //-----------------------------------------------------------------------------
 314
 315 class wxDataViewTreeNode;
 316 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 317
 318 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 319                                            wxDataViewTreeNode ** node2);
 320
 321 class wxDataViewTreeNode
 322 {
 323 public:
 324     wxDataViewTreeNode(wxDataViewTreeNode *parent, const wxDataViewItem& item)
 325         : m_parent(parent),
 326           m_item(item),
 327           m_branchData(NULL)
 328     {
 329     }
 330
 331     ~wxDataViewTreeNode()
 332     {
 333         if ( m_branchData )
 334         {
 335             wxDataViewTreeNodes& nodes = m_branchData->children;
 336             for ( wxDataViewTreeNodes::iterator i = nodes.begin();
 337                   i != nodes.end();
 338                   ++i )
 339             {
 340                 delete *i;
 341             }
 342
 343             delete m_branchData;
 344         }
 345     }
 346
 347     static wxDataViewTreeNode* CreateRootNode()
 348     {
 349         wxDataViewTreeNode *n = new wxDataViewTreeNode(NULL, wxDataViewItem());
 350         n->SetHasChildren(true);
 351         n->m_branchData->open = true;
 352         return n;
 353     }
 354
 355     wxDataViewTreeNode * GetParent() const { return m_parent; }
 356
 357     const wxDataViewTreeNodes& GetChildNodes() const
 358     {
 359         wxASSERT( m_branchData != NULL );
 360         return m_branchData->children;
 361     }
 362
 363     void InsertChild(wxDataViewTreeNode *node, unsigned index)
 364     {
 365         if ( !m_branchData )
 366             m_branchData = new BranchNodeData;
 367
 368         m_branchData->children.Insert(node, index);
 369
 370         // TODO: insert into sorted array directly in O(log n) instead of resorting in O(n log n)
 371         if (g_column >= -1)
 372             m_branchData->children.Sort( &wxGenericTreeModelNodeCmp );
 373     }
 374
 375     void RemoveChild(wxDataViewTreeNode *node)
 376     {
 377         wxCHECK_RET( m_branchData != NULL, "leaf node doesn't have children" );
 378         m_branchData->children.Remove(node);
 379     }
 380
 381     // returns position of child node for given item in children list or wxNOT_FOUND
 382     int FindChildByItem(const wxDataViewItem& item) const
 383     {
 384         if ( !m_branchData )
 385             return wxNOT_FOUND;
 386
 387         const wxDataViewTreeNodes& nodes = m_branchData->children;
 388         const int len = nodes.size();
 389         for ( int i = 0; i < len; i++ )
 390         {
 391             if ( nodes[i]->m_item == item )
 392                 return i;
 393         }
 394         return wxNOT_FOUND;
 395     }
 396
 397     const wxDataViewItem & GetItem() const { return m_item; }
 398     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 399
 400     int GetIndentLevel() const
 401     {
 402         int ret = 0;
 403         const wxDataViewTreeNode * node = this;
 404         while( node->GetParent()->GetParent() != NULL )
 405         {
 406             node = node->GetParent();
 407             ret ++;
 408         }
 409         return ret;
 410     }
 411
 412     bool IsOpen() const
 413     {
 414         return m_branchData && m_branchData->open;
 415     }
 416
 417     void ToggleOpen()
 418     {
 419         wxCHECK_RET( m_branchData != NULL, "can't open leaf node" );
 420
 421         int sum = 0;
 422
 423         const wxDataViewTreeNodes& nodes = m_branchData->children;
 424         const int len = nodes.GetCount();
 425         for ( int i = 0;i < len; i ++)
 426             sum += 1 + nodes[i]->GetSubTreeCount();
 427
 428         if (m_branchData->open)
 429         {
 430             ChangeSubTreeCount(-sum);
 431             m_branchData->open = !m_branchData->open;
 432         }
 433         else
 434         {
 435             m_branchData->open = !m_branchData->open;
 436             ChangeSubTreeCount(+sum);
 437         }
 438     }
 439
 440     // "HasChildren" property corresponds to model's IsContainer(). Note that it may be true
 441     // even if GetChildNodes() is empty; see below.
 442     bool HasChildren() const
 443     {
 444         return m_branchData != NULL;
 445     }
 446
 447     void SetHasChildren(bool has)
 448     {
 449         if ( !has )
 450         {
 451             wxDELETE(m_branchData);
 452         }
 453         else if ( m_branchData == NULL )
 454         {
 455             m_branchData = new BranchNodeData;
 456         }
 457     }
 458
 459     int GetSubTreeCount() const
 460     {
 461         return m_branchData ? m_branchData->subTreeCount : 0;
 462     }
 463
 464     void ChangeSubTreeCount( int num )
 465     {
 466         wxASSERT( m_branchData != NULL );
 467
 468         if( !m_branchData->open )
 469             return;
 470
 471         m_branchData->subTreeCount += num;
 472         wxASSERT( m_branchData->subTreeCount >= 0 );
 473
 474         if( m_parent )
 475             m_parent->ChangeSubTreeCount(num);
 476     }
 477
 478     void Resort()
 479     {
 480         if ( !m_branchData )
 481             return;
 482
 483         if (g_column >= -1)
 484         {
 485             wxDataViewTreeNodes& nodes = m_branchData->children;
 486
 487             nodes.Sort( &wxGenericTreeModelNodeCmp );
 488             int len = nodes.GetCount();
 489             for (int i = 0; i < len; i ++)
 490             {
 491                 if ( nodes[i]->HasChildren() )
 492                     nodes[i]->Resort();
 493             }
 494         }
 495     }
 496
 497
 498 private:
 499     wxDataViewTreeNode  *m_parent;
 500
 501     // Corresponding model item.
 502     wxDataViewItem       m_item;
 503
 504     // Data specific to non-leaf (branch, inner) nodes. They are kept in a
 505     // separate struct in order to conserve memory.
 506     struct BranchNodeData
 507     {
 508         BranchNodeData()
 509             : open(false),
 510               subTreeCount(0)
 511         {
 512         }
 513
 514         // Child nodes. Note that this may be empty even if m_hasChildren in
 515         // case this branch of the tree wasn't expanded and realized yet.
 516         wxDataViewTreeNodes  children;
 517
 518         // Is the branch node currently open (expanded)?
 519         bool                 open;
 520
 521         // Total count of expanded (i.e. visible with the help of some
 522         // scrolling) items in the subtree, but excluding this node. I.e. it is
 523         // 0 for leaves and is the number of rows the subtree occupies for
 524         // branch nodes.
 525         int                  subTreeCount;
 526     };
 527
 528     BranchNodeData *m_branchData;
 529 };
 530
 531
 532 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 533                                            wxDataViewTreeNode ** node2)
 534 {
 535     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 536 }
 537
 538
 539 //-----------------------------------------------------------------------------
 540 // wxDataViewMainWindow
 541 //-----------------------------------------------------------------------------
 542
 543 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
 544
 545 class wxDataViewMainWindow: public wxWindow
 546 {
 547 public:
 548     wxDataViewMainWindow( wxDataViewCtrl *parent,
 549                             wxWindowID id,
 550                             const wxPoint &pos = wxDefaultPosition,
 551                             const wxSize &size = wxDefaultSize,
 552                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 553     virtual ~wxDataViewMainWindow();
 554
 555     bool IsList() const { return GetModel()->IsListModel(); }
 556     bool IsVirtualList() const { return m_root == NULL; }
 557
 558     // notifications from wxDataViewModel
 559     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 560     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 561     bool ItemChanged( const wxDataViewItem &item );
 562     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 563     bool Cleared();
 564     void Resort()
 565     {
 566         if (!IsVirtualList())
 567         {
 568             SortPrepare();
 569             m_root->Resort();
 570         }
 571         UpdateDisplay();
 572     }
 573
 574     void SortPrepare()
 575     {
 576         g_model = GetModel();
 577         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 578         if( !col )
 579         {
 580             if (g_model->HasDefaultCompare())
 581                 g_column = -1;
 582             else
 583                 g_column = -2;
 584
 585             g_asending = true;
 586             return;
 587         }
 588         g_column = col->GetModelColumn();
 589         g_asending = col->IsSortOrderAscending();
 590     }
 591
 592     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 593     wxDataViewCtrl *GetOwner() { return m_owner; }
 594     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 595
 596     wxDataViewModel* GetModel() { return GetOwner()->GetModel(); }
 597     const wxDataViewModel* GetModel() const { return GetOwner()->GetModel(); }
 598
 599 #if wxUSE_DRAG_AND_DROP
 600     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 601 #endif // wxUSE_DRAG_AND_DROP
 602     void OnPaint( wxPaintEvent &event );
 603     void OnCharHook( wxKeyEvent &event );
 604     void OnChar( wxKeyEvent &event );
 605     void OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event);
 606     void OnLeftKey();
 607     void OnRightKey();
 608     void OnMouse( wxMouseEvent &event );
 609     void OnSetFocus( wxFocusEvent &event );
 610     void OnKillFocus( wxFocusEvent &event );
 611
 612     void UpdateDisplay();
 613     void RecalculateDisplay();
 614     void OnInternalIdle();
 615
 616     void OnRenameTimer();
 617
 618     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 619     void ScrollTo( int rows, int column );
 620
 621     unsigned GetCurrentRow() const { return m_currentRow; }
 622     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 623     void ChangeCurrentRow( unsigned int row );
 624     bool TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward);
 625
 626     wxDataViewColumn *GetCurrentColumn() const { return m_currentCol; }
 627     void ClearCurrentColumn() { m_currentCol = NULL; }
 628
 629     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 630     bool IsEmpty() { return GetRowCount() == 0; }
 631
 632     int GetCountPerPage() const;
 633     int GetEndOfLastCol() const;
 634     unsigned int GetFirstVisibleRow() const;
 635
 636     // I change this method to un const because in the tree view,
 637     // the displaying number of the tree are changing along with the
 638     // expanding/collapsing of the tree nodes
 639     unsigned int GetLastVisibleRow();
 640     unsigned int GetRowCount() const;
 641
 642     const wxDataViewSelection& GetSelections() const { return m_selection; }
 643     void SetSelections( const wxDataViewSelection & sel )
 644         { m_selection = sel; UpdateDisplay(); }
 645     void Select( const wxArrayInt& aSelections );
 646     void SelectAllRows( bool on );
 647     void SelectRow( unsigned int row, bool on );
 648     void SelectRows( unsigned int from, unsigned int to, bool on );
 649     void ReverseRowSelection( unsigned int row );
 650     bool IsRowSelected( unsigned int row );
 651     void SendSelectionChangedEvent( const wxDataViewItem& item);
 652
 653     void RefreshRow( unsigned int row );
 654     void RefreshRows( unsigned int from, unsigned int to );
 655     void RefreshRowsAfter( unsigned int firstRow );
 656
 657     // returns the colour to be used for drawing the rules
 658     wxColour GetRuleColour() const
 659     {
 660         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 661     }
 662
 663     wxRect GetLineRect( unsigned int row ) const;
 664
 665     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 666     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 667     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 668
 669     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 670     int GetRowHeight() const { return m_lineHeight; }
 671
 672     // Some useful functions for row and item mapping
 673     wxDataViewItem GetItemByRow( unsigned int row ) const;
 674     int GetRowByItem( const wxDataViewItem & item ) const;
 675
 676     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 677     // We did not need this temporarily
 678     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 679
 680     // Methods for building the mapping tree
 681     void BuildTree( wxDataViewModel  * model );
 682     void DestroyTree();
 683     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 684     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 685
 686     void Expand( unsigned int row );
 687     void Collapse( unsigned int row );
 688     bool IsExpanded( unsigned int row ) const;
 689     bool HasChildren( unsigned int row ) const;
 690
 691 #if wxUSE_DRAG_AND_DROP
 692     bool EnableDragSource( const wxDataFormat &format );
 693     bool EnableDropTarget( const wxDataFormat &format );
 694
 695     void RemoveDropHint();
 696     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 697     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 698     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 699     void OnLeave();
 700 #endif // wxUSE_DRAG_AND_DROP
 701
 702     void OnColumnsCountChanged();
 703
 704     // Called by wxDataViewCtrl and our own OnRenameTimer() to start edit the
 705     // specified item in the given column.
 706     void StartEditing(const wxDataViewItem& item, const wxDataViewColumn* col);
 707
 708 private:
 709     int RecalculateCount() const;
 710
 711     // Return false only if the event was vetoed by its handler.
 712     bool SendExpanderEvent(wxEventType type, const wxDataViewItem& item);
 713
 714     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 715
 716     wxDataViewColumn *FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode);
 717
 718     bool IsCellEditableInMode(const wxDataViewItem& item, const wxDataViewColumn *col, wxDataViewCellMode mode) const;
 719
 720     void DrawCellBackground( wxDataViewRenderer* cell, wxDC& dc, const wxRect& rect );
 721
 722 private:
 723     wxDataViewCtrl             *m_owner;
 724     int                         m_lineHeight;
 725     bool                        m_dirty;
 726
 727     wxDataViewColumn           *m_currentCol;
 728     unsigned int                m_currentRow;
 729     wxDataViewSelection         m_selection;
 730
 731     wxDataViewRenameTimer      *m_renameTimer;
 732     bool                        m_lastOnSame;
 733
 734     bool                        m_hasFocus;
 735     bool                        m_useCellFocus;
 736     bool                        m_currentColSetByKeyboard;
 737
 738 #if wxUSE_DRAG_AND_DROP
 739     int                         m_dragCount;
 740     wxPoint                     m_dragStart;
 741
 742     bool                        m_dragEnabled;
 743     wxDataFormat                m_dragFormat;
 744
 745     bool                        m_dropEnabled;
 746     wxDataFormat                m_dropFormat;
 747     bool                        m_dropHint;
 748     unsigned int                m_dropHintLine;
 749 #endif // wxUSE_DRAG_AND_DROP
 750
 751     // for double click logic
 752     unsigned int m_lineLastClicked,
 753         m_lineBeforeLastClicked,
 754         m_lineSelectSingleOnUp;
 755
 756     // the pen used to draw horiz/vertical rules
 757     wxPen m_penRule;
 758
 759     // the pen used to draw the expander and the lines
 760     wxPen m_penExpander;
 761
 762     // This is the tree structure of the model
 763     wxDataViewTreeNode * m_root;
 764     int m_count;
 765
 766     // This is the tree node under the cursor
 767     wxDataViewTreeNode * m_underMouse;
 768
 769     // The control used for editing or NULL.
 770     wxWeakRef<wxWindow> m_editorCtrl;
 771
 772     // Id m_editorCtrl is non-NULL, pointer to the associated renderer.
 773     wxDataViewRenderer* m_editorRenderer;
 774
 775 private:
 776     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 777     DECLARE_EVENT_TABLE()
 778 };
 779
 780 // ---------------------------------------------------------
 781 // wxGenericDataViewModelNotifier
 782 // ---------------------------------------------------------
 783
 784 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 785 {
 786 public:
 787     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 788         { m_mainWindow = mainWindow; }
 789
 790     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 791         { return m_mainWindow->ItemAdded( parent , item ); }
 792     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 793         { return m_mainWindow->ItemDeleted( parent, item ); }
 794     virtual bool ItemChanged( const wxDataViewItem & item )
 795         { return m_mainWindow->ItemChanged(item);  }
 796     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 797         { return m_mainWindow->ValueChanged( item, col ); }
 798     virtual bool Cleared()
 799         { return m_mainWindow->Cleared(); }
 800     virtual void Resort()
 801         { m_mainWindow->Resort(); }
 802
 803     wxDataViewMainWindow    *m_mainWindow;
 804 };
 805
 806 // ---------------------------------------------------------
 807 // wxDataViewRenderer
 808 // ---------------------------------------------------------
 809
 810 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 811
 812 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 813                                         wxDataViewCellMode mode,
 814                                         int align) :
 815     wxDataViewCustomRendererBase( varianttype, mode, align )
 816 {
 817     m_align = align;
 818     m_mode = mode;
 819     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 820     m_dc = NULL;
 821 }
 822
 823 wxDataViewRenderer::~wxDataViewRenderer()
 824 {
 825     delete m_dc;
 826 }
 827
 828 wxDC *wxDataViewRenderer::GetDC()
 829 {
 830     if (m_dc == NULL)
 831     {
 832         if (GetOwner() == NULL)
 833             return NULL;
 834         if (GetOwner()->GetOwner() == NULL)
 835             return NULL;
 836         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 837     }
 838
 839     return m_dc;
 840 }
 841
 842 void wxDataViewRenderer::SetAlignment( int align )
 843 {
 844     m_align=align;
 845 }
 846
 847 int wxDataViewRenderer::GetAlignment() const
 848 {
 849     return m_align;
 850 }
 851
 852 // ---------------------------------------------------------
 853 // wxDataViewCustomRenderer
 854 // ---------------------------------------------------------
 855
 856 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 857
 858 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 859                         wxDataViewCellMode mode, int align ) :
 860     wxDataViewRenderer( varianttype, mode, align )
 861 {
 862 }
 863
 864 // ---------------------------------------------------------
 865 // wxDataViewTextRenderer
 866 // ---------------------------------------------------------
 867
 868 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 869
 870 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 871                                                 wxDataViewCellMode mode, int align ) :
 872     wxDataViewRenderer( varianttype, mode, align )
 873 {
 874 }
 875
 876 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 877 {
 878     m_text = value.GetString();
 879
 880     return true;
 881 }
 882
 883 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 884 {
 885     return false;
 886 }
 887
 888 bool wxDataViewTextRenderer::HasEditorCtrl() const
 889 {
 890     return true;
 891 }
 892
 893 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 894         wxRect labelRect, const wxVariant &value )
 895 {
 896     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 897                                        wxPoint(labelRect.x,labelRect.y),
 898                                        wxSize(labelRect.width,labelRect.height),
 899                                        wxTE_PROCESS_ENTER );
 900
 901     // select the text in the control an place the cursor at the end
 902     ctrl->SetInsertionPointEnd();
 903     ctrl->SelectAll();
 904
 905     return ctrl;
 906 }
 907
 908 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 909 {
 910     wxTextCtrl *text = (wxTextCtrl*) editor;
 911     value = text->GetValue();
 912     return true;
 913 }
 914
 915 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 916 {
 917     RenderText(m_text, 0, rect, dc, state);
 918     return true;
 919 }
 920
 921 wxSize wxDataViewTextRenderer::GetSize() const
 922 {
 923     if (!m_text.empty())
 924         return GetTextExtent(m_text);
 925     else
 926         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 927 }
 928
 929 // ---------------------------------------------------------
 930 // wxDataViewBitmapRenderer
 931 // ---------------------------------------------------------
 932
 933 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 934
 935 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 936                                                     wxDataViewCellMode mode, int align ) :
 937     wxDataViewRenderer( varianttype, mode, align )
 938 {
 939 }
 940
 941 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 942 {
 943     if (value.GetType() == wxT("wxBitmap"))
 944         m_bitmap << value;
 945     if (value.GetType() == wxT("wxIcon"))
 946         m_icon << value;
 947
 948     return true;
 949 }
 950
 951 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 952 {
 953     return false;
 954 }
 955
 956 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 957 {
 958     if (m_bitmap.IsOk())
 959         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 960     else if (m_icon.IsOk())
 961         dc->DrawIcon( m_icon, cell.x, cell.y );
 962
 963     return true;
 964 }
 965
 966 wxSize wxDataViewBitmapRenderer::GetSize() const
 967 {
 968     if (m_bitmap.IsOk())
 969         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 970     else if (m_icon.IsOk())
 971         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 972
 973     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 974 }
 975
 976 // ---------------------------------------------------------
 977 // wxDataViewToggleRenderer
 978 // ---------------------------------------------------------
 979
 980 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 981
 982 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 983                         wxDataViewCellMode mode, int align ) :
 984     wxDataViewRenderer( varianttype, mode, align )
 985 {
 986     m_toggle = false;
 987 }
 988
 989 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 990 {
 991     m_toggle = value.GetBool();
 992
 993     return true;
 994 }
 995
 996 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 997 {
 998     return false;
 999 }
1000
1001 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
1002 {
1003     int flags = 0;
1004     if (m_toggle)
1005         flags |= wxCONTROL_CHECKED;
1006     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
1007         GetEnabled() == false)
1008         flags |= wxCONTROL_DISABLED;
1009
1010     // Ensure that the check boxes always have at least the minimal required
1011     // size, otherwise DrawCheckBox() doesn't really work well. If this size is
1012     // greater than the cell size, the checkbox will be truncated but this is a
1013     // lesser evil.
1014     wxSize size = cell.GetSize();
1015     size.IncTo(GetSize());
1016     cell.SetSize(size);
1017
1018     wxRendererNative::Get().DrawCheckBox(
1019             GetOwner()->GetOwner(),
1020             *dc,
1021             cell,
1022             flags );
1023
1024     return true;
1025 }
1026
1027 bool wxDataViewToggleRenderer::WXActivateCell(const wxRect& WXUNUSED(cell),
1028                                               wxDataViewModel *model,
1029                                               const wxDataViewItem& item,
1030                                               unsigned int col,
1031                                               const wxMouseEvent *mouseEvent)
1032 {
1033     if ( mouseEvent )
1034     {
1035         // only react to clicks directly on the checkbox, not elsewhere in the same cell:
1036         if ( !wxRect(GetSize()).Contains(mouseEvent->GetPosition()) )
1037             return false;
1038     }
1039
1040     model->ChangeValue(!m_toggle, item, col);
1041     return true;
1042 }
1043
1044 wxSize wxDataViewToggleRenderer::GetSize() const
1045 {
1046     // the window parameter is not used by GetCheckBoxSize() so it's
1047     // safe to pass NULL
1048     return wxRendererNative::Get().GetCheckBoxSize(NULL);
1049 }
1050
1051 // ---------------------------------------------------------
1052 // wxDataViewProgressRenderer
1053 // ---------------------------------------------------------
1054
1055 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
1056
1057 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
1058     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1059     wxDataViewRenderer( varianttype, mode, align )
1060 {
1061     m_label = label;
1062     m_value = 0;
1063 }
1064
1065 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
1066 {
1067     m_value = (long) value;
1068
1069     if (m_value < 0) m_value = 0;
1070     if (m_value > 100) m_value = 100;
1071
1072     return true;
1073 }
1074
1075 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
1076 {
1077     value = (long) m_value;
1078     return true;
1079 }
1080
1081 bool
1082 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
1083 {
1084     // deflate the rect to leave a small border between bars in adjacent rows
1085     wxRect bar = rect.Deflate(0, 1);
1086
1087     dc->SetBrush( *wxTRANSPARENT_BRUSH );
1088     dc->SetPen( *wxBLACK_PEN );
1089     dc->DrawRectangle( bar );
1090
1091     bar.width = (int)(bar.width * m_value / 100.);
1092     dc->SetPen( *wxTRANSPARENT_PEN );
1093
1094     const wxDataViewItemAttr& attr = GetAttr();
1095     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
1096                                   : *wxBLUE_BRUSH );
1097     dc->DrawRectangle( bar );
1098
1099     return true;
1100 }
1101
1102 wxSize wxDataViewProgressRenderer::GetSize() const
1103 {
1104     return wxSize(40,12);
1105 }
1106
1107 // ---------------------------------------------------------
1108 // wxDataViewIconTextRenderer
1109 // ---------------------------------------------------------
1110
1111 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1112
1113 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1114 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1115     wxDataViewRenderer( varianttype, mode, align )
1116 {
1117     SetMode(mode);
1118     SetAlignment(align);
1119 }
1120
1121 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1122 {
1123     m_value << value;
1124     return true;
1125 }
1126
1127 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1128 {
1129     return false;
1130 }
1131
1132 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1133 {
1134     int xoffset = 0;
1135
1136     const wxIcon& icon = m_value.GetIcon();
1137     if ( icon.IsOk() )
1138     {
1139         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1140         xoffset = icon.GetWidth()+4;
1141     }
1142
1143     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1144
1145     return true;
1146 }
1147
1148 wxSize wxDataViewIconTextRenderer::GetSize() const
1149 {
1150     if (!m_value.GetText().empty())
1151     {
1152         wxSize size = GetTextExtent(m_value.GetText());
1153
1154         if (m_value.GetIcon().IsOk())
1155             size.x += m_value.GetIcon().GetWidth() + 4;
1156         return size;
1157     }
1158     return wxSize(80,20);
1159 }
1160
1161 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1162 {
1163     wxDataViewIconText iconText;
1164     iconText << value;
1165
1166     wxString text = iconText.GetText();
1167
1168     // adjust the label rect to take the width of the icon into account
1169     if (iconText.GetIcon().IsOk())
1170     {
1171         int w = iconText.GetIcon().GetWidth() + 4;
1172         labelRect.x += w;
1173         labelRect.width -= w;
1174     }
1175
1176     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1177                                        wxPoint(labelRect.x,labelRect.y),
1178                                        wxSize(labelRect.width,labelRect.height),
1179                                        wxTE_PROCESS_ENTER );
1180
1181     // select the text in the control an place the cursor at the end
1182     ctrl->SetInsertionPointEnd();
1183     ctrl->SelectAll();
1184
1185     return ctrl;
1186 }
1187
1188 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1189 {
1190     wxTextCtrl *text = (wxTextCtrl*) editor;
1191
1192     // The icon can't be edited so get its old value and reuse it.
1193     wxVariant valueOld;
1194     wxDataViewColumn* const col = GetOwner();
1195     GetView()->GetModel()->GetValue(valueOld, m_item, col->GetModelColumn());
1196
1197     wxDataViewIconText iconText;
1198     iconText << valueOld;
1199
1200     // But replace the text with the value entered by user.
1201     iconText.SetText(text->GetValue());
1202
1203     value << iconText;
1204     return true;
1205 }
1206
1207 //-----------------------------------------------------------------------------
1208 // wxDataViewDropTarget
1209 //-----------------------------------------------------------------------------
1210
1211 #if wxUSE_DRAG_AND_DROP
1212
1213 class wxBitmapCanvas: public wxWindow
1214 {
1215 public:
1216     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1217     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1218     {
1219         m_bitmap = bitmap;
1220         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1221     }
1222
1223     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1224     {
1225         wxPaintDC dc(this);
1226         dc.DrawBitmap( m_bitmap, 0, 0);
1227     }
1228
1229     wxBitmap m_bitmap;
1230 };
1231
1232 class wxDataViewDropSource: public wxDropSource
1233 {
1234 public:
1235     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1236         wxDropSource( win )
1237     {
1238         m_win = win;
1239         m_row = row;
1240         m_hint = NULL;
1241     }
1242
1243     ~wxDataViewDropSource()
1244     {
1245         delete m_hint;
1246     }
1247
1248     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1249     {
1250         wxPoint pos = wxGetMousePosition();
1251
1252         if (!m_hint)
1253         {
1254             int liney = m_win->GetLineStart( m_row );
1255             int linex = 0;
1256             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1257             m_win->ClientToScreen( &linex, &liney );
1258             m_dist_x = pos.x - linex;
1259             m_dist_y = pos.y - liney;
1260
1261             int indent = 0;
1262             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1263             m_dist_x -= indent;
1264             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1265                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1266                                         ib.GetSize(),
1267                                         wxFRAME_TOOL_WINDOW |
1268                                         wxFRAME_FLOAT_ON_PARENT |
1269                                         wxFRAME_NO_TASKBAR |
1270                                         wxNO_BORDER );
1271             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1272             m_hint->Show();
1273         }
1274         else
1275         {
1276             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1277             m_hint->SetTransparent( 128 );
1278         }
1279
1280         return false;
1281     }
1282
1283     wxDataViewMainWindow   *m_win;
1284     unsigned int            m_row;
1285     wxFrame                *m_hint;
1286     int m_dist_x,m_dist_y;
1287 };
1288
1289
1290 class wxDataViewDropTarget: public wxDropTarget
1291 {
1292 public:
1293     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1294         wxDropTarget( obj )
1295     {
1296         m_win = win;
1297     }
1298
1299     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1300     {
1301         wxDataFormat format = GetMatchingPair();
1302         if (format == wxDF_INVALID)
1303             return wxDragNone;
1304         return m_win->OnDragOver( format, x, y, def);
1305     }
1306
1307     virtual bool OnDrop( wxCoord x, wxCoord y )
1308     {
1309         wxDataFormat format = GetMatchingPair();
1310         if (format == wxDF_INVALID)
1311             return false;
1312         return m_win->OnDrop( format, x, y );
1313     }
1314
1315     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1316     {
1317         wxDataFormat format = GetMatchingPair();
1318         if (format == wxDF_INVALID)
1319             return wxDragNone;
1320         if (!GetData())
1321             return wxDragNone;
1322         return m_win->OnData( format, x, y, def );
1323     }
1324
1325     virtual void OnLeave()
1326         { m_win->OnLeave(); }
1327
1328     wxDataViewMainWindow   *m_win;
1329 };
1330
1331 #endif // wxUSE_DRAG_AND_DROP
1332
1333 //-----------------------------------------------------------------------------
1334 // wxDataViewRenameTimer
1335 //-----------------------------------------------------------------------------
1336
1337 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1338 {
1339     m_owner = owner;
1340 }
1341
1342 void wxDataViewRenameTimer::Notify()
1343 {
1344     m_owner->OnRenameTimer();
1345 }
1346
1347 //-----------------------------------------------------------------------------
1348 // wxDataViewMainWindow
1349 //-----------------------------------------------------------------------------
1350
1351 // The tree building helper, declared firstly
1352 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1353                              wxDataViewTreeNode * node);
1354
1355 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1356 {
1357     if (row1 > row2) return 1;
1358     if (row1 == row2) return 0;
1359     return -1;
1360 }
1361
1362 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1363
1364 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1365     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1366     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1367     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1368     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1369     EVT_CHAR_HOOK     (wxDataViewMainWindow::OnCharHook)
1370     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1371 END_EVENT_TABLE()
1372
1373 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1374     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1375     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1376     m_selection( wxDataViewSelectionCmp )
1377
1378 {
1379     SetOwner( parent );
1380
1381     m_editorRenderer = NULL;
1382
1383     m_lastOnSame = false;
1384     m_renameTimer = new wxDataViewRenameTimer( this );
1385
1386     // TODO: user better initial values/nothing selected
1387     m_currentCol = NULL;
1388     m_currentColSetByKeyboard = false;
1389     m_useCellFocus = false;
1390     m_currentRow = 0;
1391
1392 #ifdef __WXMSW__
1393     // We would like to use the same line height that Explorer uses. This is
1394     // different from standard ListView control since Vista.
1395     if ( wxGetWinVersion() >= wxWinVersion_Vista )
1396         m_lineHeight = wxMax(16, GetCharHeight()) + 6; // 16 = mini icon height
1397     else
1398 #endif // __WXMSW__
1399         m_lineHeight = wxMax(16, GetCharHeight()) + 1; // 16 = mini icon height
1400
1401 #if wxUSE_DRAG_AND_DROP
1402     m_dragCount = 0;
1403     m_dragStart = wxPoint(0,0);
1404
1405     m_dragEnabled = false;
1406     m_dropEnabled = false;
1407     m_dropHint = false;
1408     m_dropHintLine = (unsigned int) -1;
1409 #endif // wxUSE_DRAG_AND_DROP
1410
1411     m_lineLastClicked = (unsigned int) -1;
1412     m_lineBeforeLastClicked = (unsigned int) -1;
1413     m_lineSelectSingleOnUp = (unsigned int) -1;
1414
1415     m_hasFocus = false;
1416
1417     SetBackgroundColour( *wxWHITE );
1418
1419     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1420
1421     m_penRule = wxPen(GetRuleColour());
1422
1423     // compose a pen whichcan draw black lines
1424     // TODO: maybe there is something system colour to use
1425     m_penExpander = wxPen(wxColour(0,0,0));
1426
1427     m_root = wxDataViewTreeNode::CreateRootNode();
1428
1429     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1430     m_count = -1;
1431     m_underMouse = NULL;
1432     UpdateDisplay();
1433 }
1434
1435 wxDataViewMainWindow::~wxDataViewMainWindow()
1436 {
1437     DestroyTree();
1438     delete m_renameTimer;
1439 }
1440
1441
1442 #if wxUSE_DRAG_AND_DROP
1443 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1444 {
1445     m_dragFormat = format;
1446     m_dragEnabled = format != wxDF_INVALID;
1447
1448     return true;
1449 }
1450
1451 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1452 {
1453     m_dropFormat = format;
1454     m_dropEnabled = format != wxDF_INVALID;
1455
1456     if (m_dropEnabled)
1457         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1458
1459     return true;
1460 }
1461
1462 void wxDataViewMainWindow::RemoveDropHint()
1463 {
1464     if (m_dropHint)
1465     {
1466             m_dropHint = false;
1467             RefreshRow( m_dropHintLine );
1468             m_dropHintLine = (unsigned int) -1;
1469     }
1470 }
1471
1472 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1473                                                wxCoord y, wxDragResult def )
1474 {
1475     int xx = x;
1476     int yy = y;
1477     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1478     unsigned int row = GetLineAt( yy );
1479
1480     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1481     {
1482         RemoveDropHint();
1483         return wxDragNone;
1484     }
1485
1486     wxDataViewItem item = GetItemByRow( row );
1487
1488     wxDataViewModel *model = GetModel();
1489
1490     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1491     event.SetEventObject( m_owner );
1492     event.SetItem( item );
1493     event.SetModel( model );
1494     event.SetDataFormat( format );
1495     event.SetDropEffect( def );
1496     if (!m_owner->HandleWindowEvent( event ))
1497     {
1498         RemoveDropHint();
1499         return wxDragNone;
1500     }
1501
1502     if (!event.IsAllowed())
1503     {
1504         RemoveDropHint();
1505         return wxDragNone;
1506     }
1507
1508
1509     if (m_dropHint && (row != m_dropHintLine))
1510         RefreshRow( m_dropHintLine );
1511     m_dropHint = true;
1512     m_dropHintLine = row;
1513     RefreshRow( row );
1514
1515     return def;
1516 }
1517
1518 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1519 {
1520     RemoveDropHint();
1521
1522     int xx = x;
1523     int yy = y;
1524     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1525     unsigned int row = GetLineAt( yy );
1526
1527     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1528         return false;
1529
1530     wxDataViewItem item = GetItemByRow( row );
1531
1532     wxDataViewModel *model = GetModel();
1533
1534     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1535     event.SetEventObject( m_owner );
1536     event.SetItem( item );
1537     event.SetModel( model );
1538     event.SetDataFormat( format );
1539     if (!m_owner->HandleWindowEvent( event ))
1540         return false;
1541
1542     if (!event.IsAllowed())
1543         return false;
1544
1545     return true;
1546 }
1547
1548 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1549                                            wxDragResult def )
1550 {
1551     int xx = x;
1552     int yy = y;
1553     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1554     unsigned int row = GetLineAt( yy );
1555
1556     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1557         return wxDragNone;
1558
1559     wxDataViewItem item = GetItemByRow( row );
1560
1561     wxDataViewModel *model = GetModel();
1562
1563     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1564
1565     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1566     event.SetEventObject( m_owner );
1567     event.SetItem( item );
1568     event.SetModel( model );
1569     event.SetDataFormat( format );
1570     event.SetDataSize( obj->GetSize() );
1571     event.SetDataBuffer( obj->GetData() );
1572     event.SetDropEffect( def );
1573     if (!m_owner->HandleWindowEvent( event ))
1574         return wxDragNone;
1575
1576     if (!event.IsAllowed())
1577         return wxDragNone;
1578
1579     return def;
1580 }
1581
1582 void wxDataViewMainWindow::OnLeave()
1583 {
1584     RemoveDropHint();
1585 }
1586
1587 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1588 {
1589     int height = GetLineHeight( row );
1590     int width = 0;
1591     unsigned int cols = GetOwner()->GetColumnCount();
1592     unsigned int col;
1593     for (col = 0; col < cols; col++)
1594     {
1595         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1596         if (column->IsHidden())
1597             continue;      // skip it!
1598         width += column->GetWidth();
1599     }
1600
1601     indent = 0;
1602     if (!IsList())
1603     {
1604         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1605         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1606         indent = indent + m_lineHeight;
1607             // try to use the m_lineHeight as the expander space
1608     }
1609     width -= indent;
1610
1611     wxBitmap bitmap( width, height );
1612     wxMemoryDC dc( bitmap );
1613     dc.SetFont( GetFont() );
1614     dc.SetPen( *wxBLACK_PEN );
1615     dc.SetBrush( *wxWHITE_BRUSH );
1616     dc.DrawRectangle( 0,0,width,height );
1617
1618     wxDataViewModel *model = m_owner->GetModel();
1619
1620     wxDataViewColumn * const
1621         expander = GetExpanderColumnOrFirstOne(GetOwner());
1622
1623     int x = 0;
1624     for (col = 0; col < cols; col++)
1625     {
1626         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1627         wxDataViewRenderer *cell = column->GetRenderer();
1628
1629         if (column->IsHidden())
1630             continue;       // skip it!
1631
1632         width = column->GetWidth();
1633
1634         if (column == expander)
1635             width -= indent;
1636
1637         wxDataViewItem item = GetItemByRow( row );
1638         cell->PrepareForItem(model, item, column->GetModelColumn());
1639
1640         wxRect item_rect(x, 0, width, height);
1641         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1642
1643         // dc.SetClippingRegion( item_rect );
1644         cell->WXCallRender(item_rect, &dc, 0);
1645         // dc.DestroyClippingRegion();
1646
1647         x += width;
1648     }
1649
1650     return bitmap;
1651 }
1652
1653 #endif // wxUSE_DRAG_AND_DROP
1654
1655
1656 // Draw focus rect for individual cell. Unlike native focus rect, we render
1657 // this in foreground text color (typically white) to enhance contrast and
1658 // make it visible.
1659 static void DrawSelectedCellFocusRect(wxDC& dc, const wxRect& rect)
1660 {
1661     // (This code is based on wxRendererGeneric::DrawFocusRect and modified.)
1662
1663     // draw the pixels manually because the "dots" in wxPen with wxDOT style
1664     // may be short traits and not really dots
1665     //
1666     // note that to behave in the same manner as DrawRect(), we must exclude
1667     // the bottom and right borders from the rectangle
1668     wxCoord x1 = rect.GetLeft(),
1669             y1 = rect.GetTop(),
1670             x2 = rect.GetRight(),
1671             y2 = rect.GetBottom();
1672
1673     wxDCPenChanger pen(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
1674
1675     wxCoord z;
1676     for ( z = x1 + 1; z < x2; z += 2 )
1677         dc.DrawPoint(z, rect.GetTop());
1678
1679     wxCoord shift = z == x2 ? 0 : 1;
1680     for ( z = y1 + shift; z < y2; z += 2 )
1681         dc.DrawPoint(x2, z);
1682
1683     shift = z == y2 ? 0 : 1;
1684     for ( z = x2 - shift; z > x1; z -= 2 )
1685         dc.DrawPoint(z, y2);
1686
1687     shift = z == x1 ? 0 : 1;
1688     for ( z = y2 - shift; z > y1; z -= 2 )
1689         dc.DrawPoint(x1, z);
1690 }
1691
1692
1693 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1694 {
1695     wxDataViewModel *model = GetModel();
1696     wxAutoBufferedPaintDC dc( this );
1697
1698 #ifdef __WXMSW__
1699     dc.SetBrush(GetOwner()->GetBackgroundColour());
1700     dc.SetPen( *wxTRANSPARENT_PEN );
1701     dc.DrawRectangle(GetClientSize());
1702 #endif
1703
1704     if ( IsEmpty() )
1705     {
1706         // No items to draw.
1707         return;
1708     }
1709
1710     // prepare the DC
1711     GetOwner()->PrepareDC( dc );
1712     dc.SetFont( GetFont() );
1713
1714     wxRect update = GetUpdateRegion().GetBox();
1715     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1716
1717     // compute which items needs to be redrawn
1718     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1719     unsigned int item_count =
1720         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1721             (int)(GetRowCount( ) - item_start));
1722     unsigned int item_last = item_start + item_count;
1723
1724     // Send the event to wxDataViewCtrl itself.
1725     wxWindow * const parent = GetParent();
1726     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1727     cache_event.SetEventObject(parent);
1728     cache_event.SetCache(item_start, item_last - 1);
1729     parent->ProcessWindowEvent(cache_event);
1730
1731     // compute which columns needs to be redrawn
1732     unsigned int cols = GetOwner()->GetColumnCount();
1733     if ( !cols )
1734     {
1735         // we assume that we have at least one column below and painting an
1736         // empty control is unnecessary anyhow
1737         return;
1738     }
1739
1740     unsigned int col_start = 0;
1741     unsigned int x_start;
1742     for (x_start = 0; col_start < cols; col_start++)
1743     {
1744         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1745         if (col->IsHidden())
1746             continue;      // skip it!
1747
1748         unsigned int w = col->GetWidth();
1749         if (x_start+w >= (unsigned int)update.x)
1750             break;
1751
1752         x_start += w;
1753     }
1754
1755     unsigned int col_last = col_start;
1756     unsigned int x_last = x_start;
1757     for (; col_last < cols; col_last++)
1758     {
1759         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1760         if (col->IsHidden())
1761             continue;      // skip it!
1762
1763         if (x_last > (unsigned int)update.GetRight())
1764             break;
1765
1766         x_last += col->GetWidth();
1767     }
1768
1769     // Draw background of alternate rows specially if required
1770     if ( m_owner->HasFlag(wxDV_ROW_LINES) )
1771     {
1772         wxColour altRowColour = m_owner->m_alternateRowColour;
1773         if ( !altRowColour.IsOk() )
1774         {
1775             // Determine the alternate rows colour automatically from the
1776             // background colour.
1777             const wxColour bgColour = m_owner->GetBackgroundColour();
1778
1779             // Depending on the background, alternate row color
1780             // will be 3% more dark or 50% brighter.
1781             int alpha = bgColour.GetRGB() > 0x808080 ? 97 : 150;
1782             altRowColour = bgColour.ChangeLightness(alpha);
1783         }
1784
1785         dc.SetPen(*wxTRANSPARENT_PEN);
1786         dc.SetBrush(wxBrush(altRowColour));
1787
1788         for (unsigned int item = item_start; item < item_last; item++)
1789         {
1790             if ( item % 2 )
1791             {
1792                 dc.DrawRectangle(x_start,
1793                                  GetLineStart(item),
1794                                  GetClientSize().GetWidth(),
1795                                  GetLineHeight(item));
1796             }
1797         }
1798     }
1799
1800     // Draw horizontal rules if required
1801     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1802     {
1803         dc.SetPen(m_penRule);
1804         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1805
1806         for (unsigned int i = item_start; i <= item_last; i++)
1807         {
1808             int y = GetLineStart( i );
1809             dc.DrawLine(x_start, y, x_last, y);
1810         }
1811     }
1812
1813     // Draw vertical rules if required
1814     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1815     {
1816         dc.SetPen(m_penRule);
1817         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1818
1819         // NB: Vertical rules are drawn in the last pixel of a column so that
1820         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1821         //     consistency with MSW native list control. There's no vertical
1822         //     rule at the most-left side of the control.
1823
1824         int x = x_start - 1;
1825         for (unsigned int i = col_start; i < col_last; i++)
1826         {
1827             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1828             if (col->IsHidden())
1829                 continue;       // skip it
1830
1831             x += col->GetWidth();
1832
1833             dc.DrawLine(x, GetLineStart( item_start ),
1834                         x, GetLineStart( item_last ) );
1835         }
1836     }
1837
1838     // redraw the background for the items which are selected/current
1839     for (unsigned int item = item_start; item < item_last; item++)
1840     {
1841         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1842
1843         if (selected || item == m_currentRow)
1844         {
1845             wxRect rect( x_start, GetLineStart( item ),
1846                          x_last - x_start, GetLineHeight( item ) );
1847
1848             // draw selection and whole-item focus:
1849             if ( selected )
1850             {
1851                 int flags = wxCONTROL_SELECTED;
1852                 if (m_hasFocus)
1853                     flags |= wxCONTROL_FOCUSED;
1854
1855                 wxRendererNative::Get().DrawItemSelectionRect
1856                                     (
1857                                         this,
1858                                         dc,
1859                                         rect,
1860                                         flags
1861                                     );
1862             }
1863
1864             // draw keyboard focus rect if applicable
1865             if ( item == m_currentRow && m_hasFocus )
1866             {
1867                 bool renderColumnFocus = false;
1868
1869                 if ( m_useCellFocus && m_currentCol && m_currentColSetByKeyboard )
1870                 {
1871                     renderColumnFocus = true;
1872
1873                     // If this is container node without columns, render full-row focus:
1874                     if ( !IsList() )
1875                     {
1876                         wxDataViewTreeNode *node = GetTreeNodeByRow(item);
1877                         if ( node->HasChildren() && !model->HasContainerColumns(node->GetItem()) )
1878                             renderColumnFocus = false;
1879                     }
1880                 }
1881
1882                 if ( renderColumnFocus )
1883                 {
1884                     for ( unsigned int i = col_start; i < col_last; i++ )
1885                     {
1886                         wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1887                         if ( col->IsHidden() )
1888                             continue;
1889
1890                         rect.width = col->GetWidth();
1891
1892                         if ( col == m_currentCol )
1893                         {
1894                             // make the rect more visible by adding a small
1895                             // margin around it:
1896                             rect.Deflate(1, 1);
1897
1898                             if ( selected )
1899                             {
1900                                 // DrawFocusRect() uses XOR and is all but
1901                                 // invisible against dark-blue background. Use
1902                                 // the same color used for selected text.
1903                                 DrawSelectedCellFocusRect(dc, rect);
1904                             }
1905                             else
1906                             {
1907                                 wxRendererNative::Get().DrawFocusRect
1908                                                     (
1909                                                         this,
1910                                                         dc,
1911                                                         rect,
1912                                                         0
1913                                                 );
1914                             }
1915                             break;
1916                         }
1917
1918                         rect.x += rect.width;
1919                     }
1920                 }
1921                 else
1922                 {
1923                     // render focus rectangle for the whole row
1924                     wxRendererNative::Get().DrawFocusRect
1925                                         (
1926                                             this,
1927                                             dc,
1928                                             rect,
1929                                             selected ? (int)wxCONTROL_SELECTED : 0
1930                                         );
1931                 }
1932             }
1933         }
1934     }
1935
1936 #if wxUSE_DRAG_AND_DROP
1937     if (m_dropHint)
1938     {
1939         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1940                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1941         dc.SetPen( *wxBLACK_PEN );
1942         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1943         dc.DrawRectangle( rect );
1944     }
1945 #endif // wxUSE_DRAG_AND_DROP
1946
1947     wxDataViewColumn * const
1948         expander = GetExpanderColumnOrFirstOne(GetOwner());
1949
1950     // redraw all cells for all rows which must be repainted and all columns
1951     wxRect cell_rect;
1952     cell_rect.x = x_start;
1953     for (unsigned int i = col_start; i < col_last; i++)
1954     {
1955         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1956         wxDataViewRenderer *cell = col->GetRenderer();
1957         cell_rect.width = col->GetWidth();
1958
1959         if ( col->IsHidden() || cell_rect.width <= 0 )
1960             continue;       // skip it!
1961
1962         for (unsigned int item = item_start; item < item_last; item++)
1963         {
1964             // get the cell value and set it into the renderer
1965             wxDataViewTreeNode *node = NULL;
1966             wxDataViewItem dataitem;
1967
1968             if (!IsVirtualList())
1969             {
1970                 node = GetTreeNodeByRow(item);
1971                 if( node == NULL )
1972                     continue;
1973
1974                 dataitem = node->GetItem();
1975
1976                 // Skip all columns of "container" rows except the expander
1977                 // column itself unless HasContainerColumns() overrides this.
1978                 if ( col != expander &&
1979                         model->IsContainer(dataitem) &&
1980                             !model->HasContainerColumns(dataitem) )
1981                     continue;
1982             }
1983             else
1984             {
1985                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1986             }
1987
1988             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1989
1990             // update cell_rect
1991             cell_rect.y = GetLineStart( item );
1992             cell_rect.height = GetLineHeight( item );
1993
1994             // draw the background
1995             bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1996             if ( !selected )
1997                 DrawCellBackground( cell, dc, cell_rect );
1998
1999             // deal with the expander
2000             int indent = 0;
2001             if ((!IsList()) && (col == expander))
2002             {
2003                 // Calculate the indent first
2004                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
2005
2006                 // we reserve m_lineHeight of horizontal space for the expander
2007                 // but leave EXPANDER_MARGIN around the expander itself
2008                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
2009
2010                 indent += m_lineHeight;
2011
2012                 // draw expander if needed and visible
2013                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
2014                 {
2015                     dc.SetPen( m_penExpander );
2016                     dc.SetBrush( wxNullBrush );
2017
2018                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
2019                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
2020                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
2021
2022                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
2023
2024                     int flag = 0;
2025                     if ( m_underMouse == node )
2026                         flag |= wxCONTROL_CURRENT;
2027                     if ( node->IsOpen() )
2028                         flag |= wxCONTROL_EXPANDED;
2029
2030                     // ensure that we don't overflow the cell (which might
2031                     // happen if the column is very narrow)
2032                     wxDCClipper clip(dc, cell_rect);
2033
2034                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
2035                 }
2036
2037                 // force the expander column to left-center align
2038                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
2039             }
2040
2041             wxRect item_rect = cell_rect;
2042             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
2043
2044             // account for the tree indent (harmless if we're not indented)
2045             item_rect.x += indent;
2046             item_rect.width -= indent;
2047
2048             if ( item_rect.width <= 0 )
2049                 continue;
2050
2051             int state = 0;
2052             if (m_hasFocus && selected)
2053                 state |= wxDATAVIEW_CELL_SELECTED;
2054
2055             // TODO: it would be much more efficient to create a clipping
2056             //       region for the entire column being rendered (in the OnPaint
2057             //       of wxDataViewMainWindow) instead of a single clip region for
2058             //       each cell. However it would mean that each renderer should
2059             //       respect the given wxRect's top & bottom coords, eventually
2060             //       violating only the left & right coords - however the user can
2061             //       make its own renderer and thus we cannot be sure of that.
2062             wxDCClipper clip(dc, item_rect);
2063
2064             cell->WXCallRender(item_rect, &dc, state);
2065         }
2066
2067         cell_rect.x += cell_rect.width;
2068     }
2069 }
2070
2071
2072 void wxDataViewMainWindow::DrawCellBackground( wxDataViewRenderer* cell, wxDC& dc, const wxRect& rect )
2073 {
2074     wxRect rectBg( rect );
2075
2076     // don't overlap the horizontal rules
2077     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
2078     {
2079         rectBg.x++;
2080         rectBg.width--;
2081     }
2082
2083     // don't overlap the vertical rules
2084     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
2085     {
2086         rectBg.y++;
2087         rectBg.height--;
2088     }
2089
2090     cell->RenderBackground(&dc, rectBg);
2091 }
2092
2093 void wxDataViewMainWindow::OnRenameTimer()
2094 {
2095     // We have to call this here because changes may just have
2096     // been made and no screen update taken place.
2097     if ( m_dirty )
2098     {
2099         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
2100         //       (needs to be tested!)
2101         wxSafeYield();
2102     }
2103
2104     wxDataViewItem item = GetItemByRow( m_currentRow );
2105
2106     StartEditing( item, m_currentCol );
2107 }
2108
2109 void
2110 wxDataViewMainWindow::StartEditing(const wxDataViewItem& item,
2111                                    const wxDataViewColumn* col)
2112 {
2113     wxDataViewRenderer* renderer = col->GetRenderer();
2114     if ( !IsCellEditableInMode(item, col, wxDATAVIEW_CELL_EDITABLE) )
2115         return;
2116
2117     const wxRect itemRect = GetItemRect(item, col);
2118     if ( renderer->StartEditing(item, itemRect) )
2119     {
2120         // Save the renderer to be able to finish/cancel editing it later and
2121         // save the control to be able to detect if we're still editing it.
2122         m_editorRenderer = renderer;
2123         m_editorCtrl = renderer->GetEditorCtrl();
2124     }
2125 }
2126
2127 //-----------------------------------------------------------------------------
2128 // Helper class for do operation on the tree node
2129 //-----------------------------------------------------------------------------
2130 class DoJob
2131 {
2132 public:
2133     DoJob() { }
2134     virtual ~DoJob() { }
2135
2136     // The return value control how the tree-walker tranverse the tree
2137     enum
2138     {
2139         DONE,          // Job done, stop traversing and return
2140         SKIP_SUBTREE,  // Ignore the current node's subtree and continue
2141         CONTINUE       // Job not done, continue
2142     };
2143
2144     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
2145 };
2146
2147 bool Walker( wxDataViewTreeNode * node, DoJob & func )
2148 {
2149     wxCHECK_MSG( node, false, "can't walk NULL node" );
2150
2151     switch( func( node ) )
2152     {
2153         case DoJob::DONE:
2154             return true;
2155         case DoJob::SKIP_SUBTREE:
2156             return false;
2157         case DoJob::CONTINUE:
2158             break;
2159     }
2160
2161     if ( node->HasChildren() )
2162     {
2163         const wxDataViewTreeNodes& nodes = node->GetChildNodes();
2164
2165         for ( wxDataViewTreeNodes::const_iterator i = nodes.begin();
2166               i != nodes.end();
2167               ++i )
2168         {
2169             if ( Walker(*i, func) )
2170                 return true;
2171         }
2172     }
2173
2174     return false;
2175 }
2176
2177 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
2178 {
2179     if (IsVirtualList())
2180     {
2181         wxDataViewVirtualListModel *list_model =
2182             (wxDataViewVirtualListModel*) GetModel();
2183         m_count = list_model->GetCount();
2184     }
2185     else
2186     {
2187         SortPrepare();
2188
2189         wxDataViewTreeNode *parentNode = FindNode(parent);
2190
2191         if ( !parentNode )
2192             return false;
2193
2194         wxDataViewItemArray modelSiblings;
2195         GetModel()->GetChildren(parent, modelSiblings);
2196         const int modelSiblingsSize = modelSiblings.size();
2197
2198         int posInModel = modelSiblings.Index(item, /*fromEnd=*/true);
2199         wxCHECK_MSG( posInModel != wxNOT_FOUND, false, "adding non-existent item?" );
2200
2201         wxDataViewTreeNode *itemNode = new wxDataViewTreeNode(parentNode, item);
2202         itemNode->SetHasChildren(GetModel()->IsContainer(item));
2203
2204         parentNode->SetHasChildren(true);
2205
2206         const wxDataViewTreeNodes& nodeSiblings = parentNode->GetChildNodes();
2207         const int nodeSiblingsSize = nodeSiblings.size();
2208
2209         int nodePos = 0;
2210
2211         if ( posInModel == modelSiblingsSize - 1 )
2212         {
2213             nodePos = nodeSiblingsSize;
2214         }
2215         else if ( modelSiblingsSize == nodeSiblingsSize + 1 )
2216         {
2217             // This is the simple case when our node tree already matches the
2218             // model and only this one item is missing.
2219             nodePos = posInModel;
2220         }
2221         else
2222         {
2223             // It's possible that a larger discrepancy between the model and
2224             // our realization exists. This can happen e.g. when adding a bunch
2225             // of items to the model and then calling ItemsAdded() just once
2226             // afterwards. In this case, we must find the right position by
2227             // looking at sibling items.
2228
2229             // append to the end if we won't find a better position:
2230             nodePos = nodeSiblingsSize;
2231
2232             for ( int nextItemPos = posInModel + 1;
2233                   nextItemPos < modelSiblingsSize;
2234                   nextItemPos++ )
2235             {
2236                 int nextNodePos = parentNode->FindChildByItem(modelSiblings[nextItemPos]);
2237                 if ( nextNodePos != wxNOT_FOUND )
2238                 {
2239                     nodePos = nextNodePos;
2240                     break;
2241                 }
2242             }
2243         }
2244
2245         parentNode->ChangeSubTreeCount(+1);
2246         parentNode->InsertChild(itemNode, nodePos);
2247
2248         m_count = -1;
2249     }
2250
2251     GetOwner()->InvalidateColBestWidths();
2252     UpdateDisplay();
2253
2254     return true;
2255 }
2256
2257 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2258                                        const wxDataViewItem& item)
2259 {
2260     if (IsVirtualList())
2261     {
2262         wxDataViewVirtualListModel *list_model =
2263             (wxDataViewVirtualListModel*) GetModel();
2264         m_count = list_model->GetCount();
2265
2266         if ( !m_selection.empty() )
2267         {
2268             const int row = GetRowByItem(item);
2269
2270             int rowIndexInSelection = wxNOT_FOUND;
2271
2272             const size_t selCount = m_selection.size();
2273             for ( size_t i = 0; i < selCount; i++ )
2274             {
2275                 if ( m_selection[i] == (unsigned)row )
2276                     rowIndexInSelection = i;
2277                 else if ( m_selection[i] > (unsigned)row )
2278                     m_selection[i]--;
2279             }
2280
2281             if ( rowIndexInSelection != wxNOT_FOUND )
2282                 m_selection.RemoveAt(rowIndexInSelection);
2283         }
2284
2285     }
2286     else // general case
2287     {
2288         wxDataViewTreeNode *parentNode = FindNode(parent);
2289
2290         // Notice that it is possible that the item being deleted is not in the
2291         // tree at all, for example we could be deleting a never shown (because
2292         // collapsed) item in a tree model. So it's not an error if we don't know
2293         // about this item, just return without doing anything then.
2294         if ( !parentNode )
2295             return true;
2296
2297         wxCHECK_MSG( parentNode->HasChildren(), false, "parent node doesn't have children?" );
2298         const wxDataViewTreeNodes& parentsChildren = parentNode->GetChildNodes();
2299
2300         // We can't use FindNode() to find 'item', because it was already
2301         // removed from the model by the time ItemDeleted() is called, so we
2302         // have to do it manually. We keep track of its position as well for
2303         // later use.
2304         int itemPosInNode = 0;
2305         wxDataViewTreeNode *itemNode = NULL;
2306         for ( wxDataViewTreeNodes::const_iterator i = parentsChildren.begin();
2307               i != parentsChildren.end();
2308               ++i, ++itemPosInNode )
2309         {
2310             if( (*i)->GetItem() == item )
2311             {
2312                 itemNode = *i;
2313                 break;
2314             }
2315         }
2316
2317         // If the parent wasn't expanded, it's possible that we didn't have a
2318         // node corresponding to 'item' and so there's nothing left to do.
2319         if ( !itemNode )
2320         {
2321             // If this was the last child to be removed, it's possible the parent
2322             // node became a leaf. Let's ask the model about it.
2323             if ( parentNode->GetChildNodes().empty() )
2324                 parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2325
2326             return true;
2327         }
2328
2329         // Delete the item from wxDataViewTreeNode representation:
2330         const int itemsDeleted = 1 + itemNode->GetSubTreeCount();
2331
2332         parentNode->RemoveChild(itemNode);
2333         delete itemNode;
2334         parentNode->ChangeSubTreeCount(-itemsDeleted);
2335
2336         // Make the row number invalid and get a new valid one when user call GetRowCount
2337         m_count = -1;
2338
2339         // If this was the last child to be removed, it's possible the parent
2340         // node became a leaf. Let's ask the model about it.
2341         if ( parentNode->GetChildNodes().empty() )
2342         {
2343             bool isContainer = GetModel()->IsContainer(parent);
2344             parentNode->SetHasChildren(isContainer);
2345             if ( isContainer )
2346             {
2347                 // If it's still a container, make sure we show "+" icon for it
2348                 // and not "-" one as there is nothing to collapse any more.
2349                 if ( parentNode->IsOpen() )
2350                     parentNode->ToggleOpen();
2351             }
2352         }
2353
2354         // Update selection by removing 'item' and its entire children tree from the selection.
2355         if ( !m_selection.empty() )
2356         {
2357             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2358             // the parent ('parentNode') and position in its list of children
2359             int itemRow;
2360             if ( itemPosInNode == 0 )
2361             {
2362                 // 1st child, row number is that of the parent parentNode + 1
2363                 itemRow = GetRowByItem(parentNode->GetItem()) + 1;
2364             }
2365             else
2366             {
2367                 // row number is that of the sibling above 'item' + its subtree if any + 1
2368                 const wxDataViewTreeNode *siblingNode = parentNode->GetChildNodes()[itemPosInNode - 1];
2369
2370                 itemRow = GetRowByItem(siblingNode->GetItem()) +
2371                           siblingNode->GetSubTreeCount() +
2372                           1;
2373             }
2374
2375             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2376
2377             const size_t numSelections = m_selection.size();
2378             for ( size_t i = 0; i < numSelections; ++i )
2379             {
2380                 const int s = m_selection[i];
2381                 if ( s < itemRow )
2382                     newsel.push_back(s);
2383                 else if ( s >= itemRow + itemsDeleted )
2384                     newsel.push_back(s - itemsDeleted);
2385                 // else: deleted item, remove from selection
2386             }
2387
2388             m_selection = newsel;
2389         }
2390     }
2391
2392     // Change the current row to the last row if the current exceed the max row number
2393     if( m_currentRow > GetRowCount() )
2394         ChangeCurrentRow(m_count - 1);
2395
2396     GetOwner()->InvalidateColBestWidths();
2397     UpdateDisplay();
2398
2399     return true;
2400 }
2401
2402 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2403 {
2404     SortPrepare();
2405     g_model->Resort();
2406
2407     GetOwner()->InvalidateColBestWidths();
2408
2409     // Send event
2410     wxWindow *parent = GetParent();
2411     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2412     le.SetEventObject(parent);
2413     le.SetModel(GetModel());
2414     le.SetItem(item);
2415     parent->ProcessWindowEvent(le);
2416
2417     return true;
2418 }
2419
2420 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2421 {
2422     int view_column = -1;
2423     unsigned int n_col = m_owner->GetColumnCount();
2424     for (unsigned i = 0; i < n_col; i++)
2425     {
2426         wxDataViewColumn *column = m_owner->GetColumn( i );
2427         if (column->GetModelColumn() == model_column)
2428         {
2429             view_column = (int) i;
2430             break;
2431         }
2432     }
2433     if (view_column == -1)
2434         return false;
2435
2436     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2437 /*#define MAX_VIRTUAL_WIDTH       100000
2438
2439     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2440     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2441     Refresh( true, &rect );
2442
2443     return true;
2444 */
2445     SortPrepare();
2446     g_model->Resort();
2447
2448     GetOwner()->InvalidateColBestWidth(view_column);
2449
2450     // Send event
2451     wxWindow *parent = GetParent();
2452     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2453     le.SetEventObject(parent);
2454     le.SetModel(GetModel());
2455     le.SetItem(item);
2456     le.SetColumn(view_column);
2457     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2458     parent->ProcessWindowEvent(le);
2459
2460     return true;
2461 }
2462
2463 bool wxDataViewMainWindow::Cleared()
2464 {
2465     DestroyTree();
2466     m_selection.Clear();
2467
2468     SortPrepare();
2469     BuildTree( GetModel() );
2470
2471     GetOwner()->InvalidateColBestWidths();
2472     UpdateDisplay();
2473
2474     return true;
2475 }
2476
2477 void wxDataViewMainWindow::UpdateDisplay()
2478 {
2479     m_dirty = true;
2480     m_underMouse = NULL;
2481 }
2482
2483 void wxDataViewMainWindow::OnInternalIdle()
2484 {
2485     wxWindow::OnInternalIdle();
2486
2487     if (m_dirty)
2488     {
2489         RecalculateDisplay();
2490         m_dirty = false;
2491     }
2492 }
2493
2494 void wxDataViewMainWindow::RecalculateDisplay()
2495 {
2496     wxDataViewModel *model = GetModel();
2497     if (!model)
2498     {
2499         Refresh();
2500         return;
2501     }
2502
2503     int width = GetEndOfLastCol();
2504     int height = GetLineStart( GetRowCount() );
2505
2506     SetVirtualSize( width, height );
2507     GetOwner()->SetScrollRate( 10, m_lineHeight );
2508
2509     Refresh();
2510 }
2511
2512 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2513 {
2514     m_underMouse = NULL;
2515
2516     wxWindow::ScrollWindow( dx, dy, rect );
2517
2518     if (GetOwner()->m_headerArea)
2519         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2520 }
2521
2522 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2523 {
2524     m_underMouse = NULL;
2525
2526     int x, y;
2527     m_owner->GetScrollPixelsPerUnit( &x, &y );
2528     int sy = GetLineStart( rows )/y;
2529     int sx = -1;
2530     if( column != -1 )
2531     {
2532         wxRect rect = GetClientRect();
2533         int colnum = 0;
2534         int x_start, w = 0;
2535         int xx, yy, xe;
2536         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2537         for (x_start = 0; colnum < column; colnum++)
2538         {
2539             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2540             if (col->IsHidden())
2541                 continue;      // skip it!
2542
2543             w = col->GetWidth();
2544             x_start += w;
2545         }
2546
2547         int x_end = x_start + w;
2548         xe = xx + rect.width;
2549         if( x_end > xe )
2550         {
2551             sx = ( xx + x_end - xe )/x;
2552         }
2553         if( x_start < xx )
2554         {
2555             sx = x_start/x;
2556         }
2557     }
2558     m_owner->Scroll( sx, sy );
2559 }
2560
2561 int wxDataViewMainWindow::GetCountPerPage() const
2562 {
2563     wxSize size = GetClientSize();
2564     return size.y / m_lineHeight;
2565 }
2566
2567 int wxDataViewMainWindow::GetEndOfLastCol() const
2568 {
2569     int width = 0;
2570     unsigned int i;
2571     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2572     {
2573         const wxDataViewColumn *c =
2574             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2575
2576         if (!c->IsHidden())
2577             width += c->GetWidth();
2578     }
2579     return width;
2580 }
2581
2582 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2583 {
2584     int x = 0;
2585     int y = 0;
2586     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2587
2588     return GetLineAt( y );
2589 }
2590
2591 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2592 {
2593     wxSize client_size = GetClientSize();
2594     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2595                                     &client_size.x, &client_size.y );
2596
2597     // we should deal with the pixel here
2598     unsigned int row = GetLineAt(client_size.y) - 1;
2599
2600     return wxMin( GetRowCount()-1, row );
2601 }
2602
2603 unsigned int wxDataViewMainWindow::GetRowCount() const
2604 {
2605     if ( m_count == -1 )
2606     {
2607         wxDataViewMainWindow* const
2608             self = const_cast<wxDataViewMainWindow*>(this);
2609         self->m_count = RecalculateCount();
2610         self->UpdateDisplay();
2611     }
2612     return m_count;
2613 }
2614
2615 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2616 {
2617     m_currentRow = row;
2618
2619     // send event
2620 }
2621
2622 void wxDataViewMainWindow::SelectAllRows( bool on )
2623 {
2624     if (IsEmpty())
2625         return;
2626
2627     if (on)
2628     {
2629         m_selection.Clear();
2630         for (unsigned int i = 0; i < GetRowCount(); i++)
2631             m_selection.Add( i );
2632         Refresh();
2633     }
2634     else
2635     {
2636         unsigned int first_visible = GetFirstVisibleRow();
2637         unsigned int last_visible = GetLastVisibleRow();
2638         unsigned int i;
2639         for (i = 0; i < m_selection.GetCount(); i++)
2640         {
2641             unsigned int row = m_selection[i];
2642             if ((row >= first_visible) && (row <= last_visible))
2643                 RefreshRow( row );
2644         }
2645         m_selection.Clear();
2646     }
2647 }
2648
2649 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2650 {
2651     if (m_selection.Index( row ) == wxNOT_FOUND)
2652     {
2653         if (on)
2654         {
2655             m_selection.Add( row );
2656             RefreshRow( row );
2657         }
2658     }
2659     else
2660     {
2661         if (!on)
2662         {
2663             m_selection.Remove( row );
2664             RefreshRow( row );
2665         }
2666     }
2667 }
2668
2669 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2670 {
2671     if (from > to)
2672     {
2673         unsigned int tmp = from;
2674         from = to;
2675         to = tmp;
2676     }
2677
2678     unsigned int i;
2679     for (i = from; i <= to; i++)
2680     {
2681         if (m_selection.Index( i ) == wxNOT_FOUND)
2682         {
2683             if (on)
2684                 m_selection.Add( i );
2685         }
2686         else
2687         {
2688             if (!on)
2689                 m_selection.Remove( i );
2690         }
2691     }
2692     RefreshRows( from, to );
2693 }
2694
2695 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2696 {
2697     for (size_t i=0; i < aSelections.GetCount(); i++)
2698     {
2699         int n = aSelections[i];
2700
2701         m_selection.Add( n );
2702         RefreshRow( n );
2703     }
2704 }
2705
2706 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2707 {
2708     if (m_selection.Index( row ) == wxNOT_FOUND)
2709         m_selection.Add( row );
2710     else
2711         m_selection.Remove( row );
2712     RefreshRow( row );
2713 }
2714
2715 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2716 {
2717     return (m_selection.Index( row ) != wxNOT_FOUND);
2718 }
2719
2720 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2721 {
2722     wxWindow *parent = GetParent();
2723     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2724
2725     le.SetEventObject(parent);
2726     le.SetModel(GetModel());
2727     le.SetItem( item );
2728
2729     parent->ProcessWindowEvent(le);
2730 }
2731
2732 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2733 {
2734     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2735     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2736
2737     wxSize client_size = GetClientSize();
2738     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2739     wxRect intersect_rect = client_rect.Intersect( rect );
2740     if (intersect_rect.width > 0)
2741         Refresh( true, &intersect_rect );
2742 }
2743
2744 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2745 {
2746     if (from > to)
2747     {
2748         unsigned int tmp = to;
2749         to = from;
2750         from = tmp;
2751     }
2752
2753     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2754     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2755
2756     wxSize client_size = GetClientSize();
2757     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2758     wxRect intersect_rect = client_rect.Intersect( rect );
2759     if (intersect_rect.width > 0)
2760         Refresh( true, &intersect_rect );
2761 }
2762
2763 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2764 {
2765     wxSize client_size = GetClientSize();
2766     int start = GetLineStart( firstRow );
2767     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2768     if (start > client_size.y) return;
2769
2770     wxRect rect( 0, start, client_size.x, client_size.y - start );
2771
2772     Refresh( true, &rect );
2773 }
2774
2775 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2776 {
2777     wxRect rect;
2778     rect.x = 0;
2779     rect.y = GetLineStart( row );
2780     rect.width = GetEndOfLastCol();
2781     rect.height = GetLineHeight( row );
2782
2783     return rect;
2784 }
2785
2786 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2787 {
2788     const wxDataViewModel *model = GetModel();
2789
2790     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2791     {
2792         // TODO make more efficient
2793
2794         int start = 0;
2795
2796         unsigned int r;
2797         for (r = 0; r < row; r++)
2798         {
2799             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2800             if (!node) return start;
2801
2802             wxDataViewItem item = node->GetItem();
2803
2804             unsigned int cols = GetOwner()->GetColumnCount();
2805             unsigned int col;
2806             int height = m_lineHeight;
2807             for (col = 0; col < cols; col++)
2808             {
2809                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2810                 if (column->IsHidden())
2811                     continue;      // skip it!
2812
2813                 if ((col != 0) &&
2814                     model->IsContainer(item) &&
2815                     !model->HasContainerColumns(item))
2816                     continue;      // skip it!
2817
2818                 wxDataViewRenderer *renderer =
2819                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2820                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2821
2822                 height = wxMax( height, renderer->GetSize().y );
2823             }
2824
2825             start += height;
2826         }
2827
2828         return start;
2829     }
2830     else
2831     {
2832         return row * m_lineHeight;
2833     }
2834 }
2835
2836 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2837 {
2838     const wxDataViewModel *model = GetModel();
2839
2840     // check for the easy case first
2841     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2842         return y / m_lineHeight;
2843
2844     // TODO make more efficient
2845     unsigned int row = 0;
2846     unsigned int yy = 0;
2847     for (;;)
2848     {
2849         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2850         if (!node)
2851         {
2852             // not really correct...
2853             return row + ((y-yy) / m_lineHeight);
2854         }
2855
2856         wxDataViewItem item = node->GetItem();
2857
2858         unsigned int cols = GetOwner()->GetColumnCount();
2859         unsigned int col;
2860         int height = m_lineHeight;
2861         for (col = 0; col < cols; col++)
2862         {
2863             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2864             if (column->IsHidden())
2865                 continue;      // skip it!
2866
2867             if ((col != 0) &&
2868                 model->IsContainer(item) &&
2869                 !model->HasContainerColumns(item))
2870                 continue;      // skip it!
2871
2872             wxDataViewRenderer *renderer =
2873                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2874             renderer->PrepareForItem(model, item, column->GetModelColumn());
2875
2876             height = wxMax( height, renderer->GetSize().y );
2877         }
2878
2879         yy += height;
2880         if (y < yy)
2881             return row;
2882
2883         row++;
2884     }
2885 }
2886
2887 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2888 {
2889     const wxDataViewModel *model = GetModel();
2890
2891     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2892     {
2893         wxASSERT( !IsVirtualList() );
2894
2895         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2896         // wxASSERT( node );
2897         if (!node) return m_lineHeight;
2898
2899         wxDataViewItem item = node->GetItem();
2900
2901         int height = m_lineHeight;
2902
2903         unsigned int cols = GetOwner()->GetColumnCount();
2904         unsigned int col;
2905         for (col = 0; col < cols; col++)
2906         {
2907             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2908             if (column->IsHidden())
2909                 continue;      // skip it!
2910
2911             if ((col != 0) &&
2912                 model->IsContainer(item) &&
2913                 !model->HasContainerColumns(item))
2914                 continue;      // skip it!
2915
2916             wxDataViewRenderer *renderer =
2917                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2918             renderer->PrepareForItem(model, item, column->GetModelColumn());
2919
2920             height = wxMax( height, renderer->GetSize().y );
2921         }
2922
2923         return height;
2924     }
2925     else
2926     {
2927         return m_lineHeight;
2928     }
2929 }
2930
2931
2932 class RowToTreeNodeJob: public DoJob
2933 {
2934 public:
2935     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2936     {
2937         this->row = row;
2938         this->current = current;
2939         ret = NULL;
2940         parent = node;
2941     }
2942
2943     virtual int operator() ( wxDataViewTreeNode * node )
2944     {
2945         current ++;
2946         if( current == static_cast<int>(row))
2947         {
2948             ret = node;
2949             return DoJob::DONE;
2950         }
2951
2952         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2953         {
2954             current += node->GetSubTreeCount();
2955             return  DoJob::SKIP_SUBTREE;
2956         }
2957         else
2958         {
2959             parent = node;
2960
2961             // If the current node has only leaf children, we can find the
2962             // desired node directly. This can speed up finding the node
2963             // in some cases, and will have a very good effect for list views.
2964             if ( node->HasChildren() &&
2965                  (int)node->GetChildNodes().size() == node->GetSubTreeCount() )
2966             {
2967                 const int index = static_cast<int>(row) - current - 1;
2968                 ret = node->GetChildNodes()[index];
2969                 return DoJob::DONE;
2970             }
2971
2972             return DoJob::CONTINUE;
2973         }
2974     }
2975
2976     wxDataViewTreeNode * GetResult() const
2977         { return ret; }
2978
2979 private:
2980     unsigned int row;
2981     int current;
2982     wxDataViewTreeNode * ret;
2983     wxDataViewTreeNode * parent;
2984 };
2985
2986 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2987 {
2988     wxASSERT( !IsVirtualList() );
2989
2990     RowToTreeNodeJob job( row , -2, m_root );
2991     Walker( m_root , job );
2992     return job.GetResult();
2993 }
2994
2995 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2996 {
2997     wxDataViewItem item;
2998     if (IsVirtualList())
2999     {
3000         if ( row < GetRowCount() )
3001             item = wxDataViewItem(wxUIntToPtr(row+1));
3002     }
3003     else
3004     {
3005         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
3006         if ( node )
3007             item = node->GetItem();
3008     }
3009
3010     return item;
3011 }
3012
3013 bool
3014 wxDataViewMainWindow::SendExpanderEvent(wxEventType type,
3015                                         const wxDataViewItem& item)
3016 {
3017     wxWindow *parent = GetParent();
3018     wxDataViewEvent le(type, parent->GetId());
3019
3020     le.SetEventObject(parent);
3021     le.SetModel(GetModel());
3022     le.SetItem( item );
3023
3024     return !parent->ProcessWindowEvent(le) || le.IsAllowed();
3025 }
3026
3027 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
3028 {
3029     if (IsList())
3030         return false;
3031
3032     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
3033     if (!node)
3034         return false;
3035
3036     if (!node->HasChildren())
3037         return false;
3038
3039     return node->IsOpen();
3040 }
3041
3042 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
3043 {
3044     if (IsList())
3045         return false;
3046
3047     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
3048     if (!node)
3049         return false;
3050
3051     if (!node->HasChildren())
3052         return false;
3053
3054     return true;
3055 }
3056
3057 void wxDataViewMainWindow::Expand( unsigned int row )
3058 {
3059     if (IsList())
3060         return;
3061
3062     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
3063     if (!node)
3064         return;
3065
3066     if (!node->HasChildren())
3067         return;
3068
3069             if (!node->IsOpen())
3070             {
3071                 if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem()) )
3072                 {
3073                     // Vetoed by the event handler.
3074                     return;
3075                 }
3076
3077                 node->ToggleOpen();
3078
3079                 // build the children of current node
3080                 if( node->GetChildNodes().empty() )
3081                 {
3082                     SortPrepare();
3083                     ::BuildTreeHelper(GetModel(), node->GetItem(), node);
3084                 }
3085
3086                 // By expanding the node all row indices that are currently in the selection list
3087                 // and are greater than our node have become invalid. So we have to correct that now.
3088                 const unsigned rowAdjustment = node->GetSubTreeCount();
3089                 for(unsigned i=0; i<m_selection.size(); ++i)
3090                 {
3091                     const unsigned testRow = m_selection[i];
3092                     // all rows above us are not affected, so skip them
3093                     if(testRow <= row)
3094                         continue;
3095
3096                     m_selection[i] += rowAdjustment;
3097                 }
3098
3099                 if(m_currentRow > row)
3100                     ChangeCurrentRow(m_currentRow + rowAdjustment);
3101
3102                 m_count = -1;
3103                 UpdateDisplay();
3104                 // Send the expanded event
3105                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
3106             }
3107 }
3108
3109 void wxDataViewMainWindow::Collapse(unsigned int row)
3110 {
3111     if (IsList())
3112         return;
3113
3114     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
3115     if (!node)
3116         return;
3117
3118     if (!node->HasChildren())
3119         return;
3120
3121         if (node->IsOpen())
3122         {
3123             if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem()) )
3124             {
3125                 // Vetoed by the event handler.
3126                 return;
3127             }
3128
3129             // Find out if there are selected items below the current node.
3130             bool selectCollapsingRow = false;
3131             const unsigned rowAdjustment = node->GetSubTreeCount();
3132             unsigned maxRowToBeTested = row + rowAdjustment;
3133             for(unsigned i=0; i<m_selection.size(); ++i)
3134             {
3135                 const unsigned testRow = m_selection[i];
3136                 if(testRow > row && testRow <= maxRowToBeTested)
3137                 {
3138                     selectCollapsingRow = true;
3139                     // get out as soon as we have found a node that is selected
3140                     break;
3141                 }
3142             }
3143
3144             node->ToggleOpen();
3145
3146             // If the node to be closed has selected items the user won't see those any longer.
3147             // We select the collapsing node in this case.
3148             if(selectCollapsingRow)
3149             {
3150                 SelectAllRows(false);
3151                 ChangeCurrentRow(row);
3152                 SelectRow(row, true);
3153                 SendSelectionChangedEvent(GetItemByRow(row));
3154             }
3155             else
3156             {
3157                 // if there were no selected items below our node we still need to "fix" the
3158                 // selection list to adjust for the changing of the row indices.
3159                 // We actually do the opposite of what we are doing in Expand().
3160                 for(unsigned i=0; i<m_selection.size(); ++i)
3161                 {
3162                     const unsigned testRow = m_selection[i];
3163                     // all rows above us are not affected, so skip them
3164                     if(testRow <= row)
3165                         continue;
3166
3167                     m_selection[i] -= rowAdjustment;
3168                 }
3169
3170                 // if the "current row" is being collapsed away we change it to the current row ;-)
3171                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3172                     ChangeCurrentRow(row);
3173                 else if(m_currentRow > row)
3174                     ChangeCurrentRow(m_currentRow - rowAdjustment);
3175             }
3176
3177             m_count = -1;
3178             UpdateDisplay();
3179             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3180         }
3181 }
3182
3183 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3184 {
3185     const wxDataViewModel * model = GetModel();
3186     if( model == NULL )
3187         return NULL;
3188
3189     if (!item.IsOk())
3190         return m_root;
3191
3192     // Compose the parent-chain for the item we are looking for
3193     wxVector<wxDataViewItem> parentChain;
3194     wxDataViewItem it( item );
3195     while( it.IsOk() )
3196     {
3197         parentChain.push_back(it);
3198         it = model->GetParent(it);
3199     }
3200
3201     // Find the item along the parent-chain.
3202     // This algorithm is designed to speed up the node-finding method
3203     wxDataViewTreeNode* node = m_root;
3204     for( unsigned iter = parentChain.size()-1; ; --iter )
3205     {
3206         if( node->HasChildren() )
3207         {
3208             if( node->GetChildNodes().empty() )
3209             {
3210                 // Even though the item is a container, it doesn't have any
3211                 // child nodes in the control's representation yet. We have
3212                 // to realize its subtree now.
3213                 SortPrepare();
3214                 ::BuildTreeHelper(model, node->GetItem(), node);
3215             }
3216
3217             const wxDataViewTreeNodes& nodes = node->GetChildNodes();
3218             bool found = false;
3219
3220             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3221             {
3222                 wxDataViewTreeNode* currentNode = nodes[i];
3223                 if (currentNode->GetItem() == parentChain[iter])
3224                 {
3225                     if (currentNode->GetItem() == item)
3226                         return currentNode;
3227
3228                     node = currentNode;
3229                     found = true;
3230                     break;
3231                 }
3232             }
3233             if (!found)
3234                 return NULL;
3235         }
3236         else
3237             return NULL;
3238
3239         if ( !iter )
3240             break;
3241     }
3242     return NULL;
3243 }
3244
3245 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3246                                     wxDataViewColumn* &column )
3247 {
3248     wxDataViewColumn *col = NULL;
3249     unsigned int cols = GetOwner()->GetColumnCount();
3250     unsigned int colnum = 0;
3251     int x, y;
3252     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3253     for (unsigned x_start = 0; colnum < cols; colnum++)
3254     {
3255         col = GetOwner()->GetColumnAt(colnum);
3256         if (col->IsHidden())
3257             continue;      // skip it!
3258
3259         unsigned int w = col->GetWidth();
3260         if (x_start+w >= (unsigned int)x)
3261             break;
3262
3263         x_start += w;
3264     }
3265
3266     column = col;
3267     item = GetItemByRow( GetLineAt( y ) );
3268 }
3269
3270 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3271                                           const wxDataViewColumn* column )
3272 {
3273     int xpos = 0;
3274     int width = 0;
3275
3276     unsigned int cols = GetOwner()->GetColumnCount();
3277     // If column is null the loop will compute the combined width of all columns.
3278     // Otherwise, it will compute the x position of the column we are looking for.
3279     for (unsigned int i = 0; i < cols; i++)
3280     {
3281         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3282
3283         if (col == column)
3284             break;
3285
3286         if (col->IsHidden())
3287             continue;      // skip it!
3288
3289         xpos += col->GetWidth();
3290         width += col->GetWidth();
3291     }
3292
3293     if(column != 0)
3294     {
3295         // If we have a column, we need can get its width directly.
3296         if(column->IsHidden())
3297             width = 0;
3298         else
3299             width = column->GetWidth();
3300
3301     }
3302     else
3303     {
3304         // If we have no column, we reset the x position back to zero.
3305         xpos = 0;
3306     }
3307
3308     // we have to take an expander column into account and compute its indentation
3309     // to get the correct x position where the actual text is
3310     int indent = 0;
3311     int row = GetRowByItem(item);
3312     if (!IsList() &&
3313             (column == 0 || GetExpanderColumnOrFirstOne(GetOwner()) == column) )
3314     {
3315         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3316         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3317         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3318     }
3319
3320     wxRect itemRect( xpos + indent,
3321                      GetLineStart( row ),
3322                      width - indent,
3323                      GetLineHeight( row ) );
3324
3325     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3326                                       &itemRect.x, &itemRect.y );
3327
3328     return itemRect;
3329 }
3330
3331 int wxDataViewMainWindow::RecalculateCount() const
3332 {
3333     if (IsVirtualList())
3334     {
3335         wxDataViewVirtualListModel *list_model =
3336             (wxDataViewVirtualListModel*) GetModel();
3337
3338         return list_model->GetCount();
3339     }
3340     else
3341     {
3342         return m_root->GetSubTreeCount();
3343     }
3344 }
3345
3346 class ItemToRowJob : public DoJob
3347 {
3348 public:
3349     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3350         : m_iter(iter),
3351         item(item_)
3352     {
3353         ret = -1;
3354     }
3355
3356     // Maybe binary search will help to speed up this process
3357     virtual int operator() ( wxDataViewTreeNode * node)
3358     {
3359         ret ++;
3360         if( node->GetItem() == item )
3361         {
3362             return DoJob::DONE;
3363         }
3364
3365         if( node->GetItem() == *m_iter )
3366         {
3367             m_iter++;
3368             return DoJob::CONTINUE;
3369         }
3370         else
3371         {
3372             ret += node->GetSubTreeCount();
3373             return DoJob::SKIP_SUBTREE;
3374         }
3375
3376     }
3377
3378     // the row number is begin from zero
3379     int GetResult() const
3380         { return ret -1; }
3381
3382 private:
3383     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3384     wxDataViewItem item;
3385     int ret;
3386
3387 };
3388
3389 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3390 {
3391     const wxDataViewModel * model = GetModel();
3392     if( model == NULL )
3393         return -1;
3394
3395     if (IsVirtualList())
3396     {
3397         return wxPtrToUInt( item.GetID() ) -1;
3398     }
3399     else
3400     {
3401         if( !item.IsOk() )
3402             return -1;
3403
3404         // Compose the parent-chain of the item we are looking for
3405         wxVector<wxDataViewItem> parentChain;
3406         wxDataViewItem it( item );
3407         while( it.IsOk() )
3408         {
3409             parentChain.push_back(it);
3410             it = model->GetParent(it);
3411         }
3412
3413         // add an 'invalid' item to represent our 'invisible' root node
3414         parentChain.push_back(wxDataViewItem());
3415
3416         // the parent chain was created by adding the deepest parent first.
3417         // so if we want to start at the root node, we have to iterate backwards through the vector
3418         ItemToRowJob job( item, parentChain.rbegin() );
3419         Walker( m_root, job );
3420         return job.GetResult();
3421     }
3422 }
3423
3424 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3425                              wxDataViewTreeNode * node)
3426 {
3427     if( !model->IsContainer( item ) )
3428         return;
3429
3430     wxDataViewItemArray children;
3431     unsigned int num = model->GetChildren( item, children);
3432
3433     for ( unsigned int index = 0; index < num; index++ )
3434     {
3435         wxDataViewTreeNode *n = new wxDataViewTreeNode(node, children[index]);
3436
3437         if( model->IsContainer(children[index]) )
3438             n->SetHasChildren( true );
3439
3440         node->InsertChild(n, index);
3441     }
3442
3443     wxASSERT( node->IsOpen() );
3444     node->ChangeSubTreeCount(+num);
3445 }
3446
3447 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3448 {
3449     DestroyTree();
3450
3451     if (GetModel()->IsVirtualListModel())
3452     {
3453         m_count = -1;
3454         return;
3455     }
3456
3457     m_root = wxDataViewTreeNode::CreateRootNode();
3458
3459     // First we define a invalid item to fetch the top-level elements
3460     wxDataViewItem item;
3461     SortPrepare();
3462     BuildTreeHelper( model, item, m_root);
3463     m_count = -1;
3464 }
3465
3466 void wxDataViewMainWindow::DestroyTree()
3467 {
3468     if (!IsVirtualList())
3469     {
3470         wxDELETE(m_root);
3471         m_count = 0;
3472     }
3473 }
3474
3475 wxDataViewColumn*
3476 wxDataViewMainWindow::FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode)
3477 {
3478     // Edit the current column editable in 'mode'. If no column is focused
3479     // (typically because the user has full row selected), try to find the
3480     // first editable column (this would typically be a checkbox for
3481     // wxDATAVIEW_CELL_ACTIVATABLE and we don't want to force the user to set
3482     // focus on the checkbox column; or on the only editable text column).
3483
3484     wxDataViewColumn *candidate = m_currentCol;
3485
3486     if ( candidate &&
3487          !IsCellEditableInMode(item, candidate, mode) &&
3488          !m_currentColSetByKeyboard )
3489     {
3490         // If current column was set by mouse to something not editable (in
3491         // 'mode') and the user pressed Space/F2 to edit it, treat the
3492         // situation as if there was whole-row focus, because that's what is
3493         // visually indicated and the mouse click could very well be targeted
3494         // on the row rather than on an individual cell.
3495         //
3496         // But if it was done by keyboard, respect that even if the column
3497         // isn't editable, because focus is visually on that column and editing
3498         // something else would be surprising.
3499         candidate = NULL;
3500     }
3501
3502     if ( !candidate )
3503     {
3504         const unsigned cols = GetOwner()->GetColumnCount();
3505         for ( unsigned i = 0; i < cols; i++ )
3506         {
3507             wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
3508             if ( c->IsHidden() )
3509                 continue;
3510
3511             if ( IsCellEditableInMode(item, c, mode) )
3512             {
3513                 candidate = c;
3514                 break;
3515             }
3516         }
3517     }
3518
3519     // If on container item without columns, only the expander column
3520     // may be directly editable:
3521     if ( candidate &&
3522          GetOwner()->GetExpanderColumn() != candidate &&
3523          GetModel()->IsContainer(item) &&
3524          !GetModel()->HasContainerColumns(item) )
3525     {
3526         candidate = GetOwner()->GetExpanderColumn();
3527     }
3528
3529     if ( !candidate )
3530        return NULL;
3531
3532    if ( !IsCellEditableInMode(item, candidate, mode) )
3533        return NULL;
3534
3535    return candidate;
3536 }
3537
3538 bool wxDataViewMainWindow::IsCellEditableInMode(const wxDataViewItem& item,
3539                                                 const wxDataViewColumn *col,
3540                                                 wxDataViewCellMode mode) const
3541 {
3542     if ( col->GetRenderer()->GetMode() != mode )
3543         return false;
3544
3545     if ( !GetModel()->IsEnabled(item, col->GetModelColumn()) )
3546         return false;
3547
3548     return true;
3549 }
3550
3551 void wxDataViewMainWindow::OnCharHook(wxKeyEvent& event)
3552 {
3553     if ( m_editorCtrl )
3554     {
3555         // Handle any keys special for the in-place editor and return without
3556         // calling Skip() below.
3557         switch ( event.GetKeyCode() )
3558         {
3559             case WXK_ESCAPE:
3560                 m_editorRenderer->CancelEditing();
3561                 return;
3562
3563             case WXK_RETURN:
3564                 m_editorRenderer->FinishEditing();
3565                 return;
3566         }
3567     }
3568
3569     event.Skip();
3570 }
3571
3572 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3573 {
3574     wxWindow * const parent = GetParent();
3575
3576     // propagate the char event upwards
3577     wxKeyEvent eventForParent(event);
3578     eventForParent.SetEventObject(parent);
3579     if ( parent->ProcessWindowEvent(eventForParent) )
3580         return;
3581
3582     if ( parent->HandleAsNavigationKey(event) )
3583         return;
3584
3585     // no item -> nothing to do
3586     if (!HasCurrentRow())
3587     {
3588         event.Skip();
3589         return;
3590     }
3591
3592     // don't use m_linesPerPage directly as it might not be computed yet
3593     const int pageSize = GetCountPerPage();
3594     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3595
3596     switch ( event.GetKeyCode() )
3597     {
3598         case WXK_RETURN:
3599             if ( event.HasModifiers() )
3600             {
3601                 event.Skip();
3602                 break;
3603             }
3604             else
3605             {
3606                 // Enter activates the item, i.e. sends wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED to
3607                 // it. Only if that event is not handled do we activate column renderer (which
3608                 // is normally done by Space) or even inline editing.
3609
3610                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3611
3612                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3613                                    parent->GetId());
3614                 le.SetItem(item);
3615                 le.SetEventObject(parent);
3616                 le.SetModel(GetModel());
3617
3618                 if ( parent->ProcessWindowEvent(le) )
3619                     break;
3620                 // else: fall through to WXK_SPACE handling
3621             }
3622
3623         case WXK_SPACE:
3624             if ( event.HasModifiers() )
3625             {
3626                 event.Skip();
3627                 break;
3628             }
3629             else
3630             {
3631                 // Space toggles activatable items or -- if not activatable --
3632                 // starts inline editing (this is normally done using F2 on
3633                 // Windows, but Space is common everywhere else, so use it too
3634                 // for greater cross-platform compatibility).
3635
3636                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3637
3638                 // Activate the current activatable column. If not column is focused (typically
3639                 // because the user has full row selected), try to find the first activatable
3640                 // column (this would typically be a checkbox and we don't want to force the user
3641                 // to set focus on the checkbox column).
3642                 wxDataViewColumn *activatableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_ACTIVATABLE);
3643
3644                 if ( activatableCol )
3645                 {
3646                     const unsigned colIdx = activatableCol->GetModelColumn();
3647                     const wxRect cell_rect = GetOwner()->GetItemRect(item, activatableCol);
3648
3649                     wxDataViewRenderer *cell = activatableCol->GetRenderer();
3650                     cell->PrepareForItem(GetModel(), item, colIdx);
3651                     cell->WXActivateCell(cell_rect, GetModel(), item, colIdx, NULL);
3652
3653                     break;
3654                 }
3655                 // else: fall through to WXK_F2 handling
3656             }
3657
3658         case WXK_F2:
3659             if ( event.HasModifiers() )
3660             {
3661                 event.Skip();
3662                 break;
3663             }
3664             else
3665             {
3666                 if( !m_selection.empty() )
3667                 {
3668                     // Mimic Windows 7 behavior: edit the item that has focus
3669                     // if it is selected and the first selected item if focus
3670                     // is out of selection.
3671                     int sel;
3672                     if ( m_selection.Index(m_currentRow) != wxNOT_FOUND )
3673                         sel = m_currentRow;
3674                     else
3675                         sel = m_selection[0];
3676
3677
3678                     const wxDataViewItem item = GetItemByRow(sel);
3679
3680                     // Edit the current column. If no column is focused
3681                     // (typically because the user has full row selected), try
3682                     // to find the first editable column.
3683                     wxDataViewColumn *editableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_EDITABLE);
3684
3685                     if ( editableCol )
3686                         GetOwner()->EditItem(item, editableCol);
3687                 }
3688             }
3689             break;
3690
3691         case WXK_UP:
3692             if ( m_currentRow > 0 )
3693                 OnVerticalNavigation( m_currentRow - 1, event );
3694             break;
3695
3696         case WXK_DOWN:
3697             if ( m_currentRow + 1 < GetRowCount() )
3698                 OnVerticalNavigation( m_currentRow + 1, event );
3699             break;
3700         // Add the process for tree expanding/collapsing
3701         case WXK_LEFT:
3702             OnLeftKey();
3703             break;
3704
3705         case WXK_RIGHT:
3706             OnRightKey();
3707             break;
3708
3709         case WXK_END:
3710         {
3711             if (!IsEmpty())
3712                 OnVerticalNavigation( GetRowCount() - 1, event );
3713             break;
3714         }
3715         case WXK_HOME:
3716             if (!IsEmpty())
3717                 OnVerticalNavigation( 0, event );
3718             break;
3719
3720         case WXK_PAGEUP:
3721             {
3722                 int steps = pageSize - 1;
3723                 int index = m_currentRow - steps;
3724                 if (index < 0)
3725                     index = 0;
3726
3727                 OnVerticalNavigation( index, event );
3728             }
3729             break;
3730
3731         case WXK_PAGEDOWN:
3732             {
3733                 int steps = pageSize - 1;
3734                 unsigned int index = m_currentRow + steps;
3735                 unsigned int count = GetRowCount();
3736                 if ( index >= count )
3737                     index = count - 1;
3738
3739                 OnVerticalNavigation( index, event );
3740             }
3741             break;
3742
3743         default:
3744             event.Skip();
3745     }
3746 }
3747
3748 void wxDataViewMainWindow::OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event)
3749 {
3750     wxCHECK_RET( newCurrent < GetRowCount(),
3751                 wxT("invalid item index in OnVerticalNavigation()") );
3752
3753     // if there is no selection, we cannot move it anywhere
3754     if (!HasCurrentRow())
3755         return;
3756
3757     unsigned int oldCurrent = m_currentRow;
3758
3759     // in single selection we just ignore Shift as we can't select several
3760     // items anyhow
3761     if ( event.ShiftDown() && !IsSingleSel() )
3762     {
3763         RefreshRow( oldCurrent );
3764
3765         ChangeCurrentRow( newCurrent );
3766
3767         // select all the items between the old and the new one
3768         if ( oldCurrent > newCurrent )
3769         {
3770             newCurrent = oldCurrent;
3771             oldCurrent = m_currentRow;
3772         }
3773
3774         SelectRows( oldCurrent, newCurrent, true );
3775         if (oldCurrent!=newCurrent)
3776             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
3777     }
3778     else // !shift
3779     {
3780         RefreshRow( oldCurrent );
3781
3782         // all previously selected items are unselected unless ctrl is held
3783         if ( !event.ControlDown() )
3784             SelectAllRows(false);
3785
3786         ChangeCurrentRow( newCurrent );
3787
3788         if ( !event.ControlDown() )
3789         {
3790             SelectRow( m_currentRow, true );
3791             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3792         }
3793         else
3794             RefreshRow( m_currentRow );
3795     }
3796
3797     GetOwner()->EnsureVisible( m_currentRow, -1 );
3798 }
3799
3800 void wxDataViewMainWindow::OnLeftKey()
3801 {
3802     if ( IsList() )
3803     {
3804         TryAdvanceCurrentColumn(NULL, /*forward=*/false);
3805     }
3806     else
3807     {
3808         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3809
3810         if ( TryAdvanceCurrentColumn(node, /*forward=*/false) )
3811             return;
3812
3813         // Because TryAdvanceCurrentColumn() return false, we are at the first
3814         // column or using whole-row selection. In this situation, we can use
3815         // the standard TreeView handling of the left key.
3816         if (node->HasChildren() && node->IsOpen())
3817         {
3818             Collapse(m_currentRow);
3819         }
3820         else
3821         {
3822             // if the node is already closed, we move the selection to its parent
3823             wxDataViewTreeNode *parent_node = node->GetParent();
3824
3825             if (parent_node)
3826             {
3827                 int parent = GetRowByItem( parent_node->GetItem() );
3828                 if ( parent >= 0 )
3829                 {
3830                     unsigned int row = m_currentRow;
3831                     SelectRow( row, false);
3832                     SelectRow( parent, true );
3833                     ChangeCurrentRow( parent );
3834                     GetOwner()->EnsureVisible( parent, -1 );
3835                     SendSelectionChangedEvent( parent_node->GetItem() );
3836                 }
3837             }
3838         }
3839     }
3840 }
3841
3842 void wxDataViewMainWindow::OnRightKey()
3843 {
3844     if ( IsList() )
3845     {
3846         TryAdvanceCurrentColumn(NULL, /*forward=*/true);
3847     }
3848     else
3849     {
3850         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3851
3852         if ( node->HasChildren() )
3853         {
3854             if ( !node->IsOpen() )
3855             {
3856                 Expand( m_currentRow );
3857             }
3858             else
3859             {
3860                 // if the node is already open, we move the selection to the first child
3861                 unsigned int row = m_currentRow;
3862                 SelectRow( row, false );
3863                 SelectRow( row + 1, true );
3864                 ChangeCurrentRow( row + 1 );
3865                 GetOwner()->EnsureVisible( row + 1, -1 );
3866                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3867             }
3868         }
3869         else
3870         {
3871             TryAdvanceCurrentColumn(node, /*forward=*/true);
3872         }
3873     }
3874 }
3875
3876 bool wxDataViewMainWindow::TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward)
3877 {
3878     if ( GetOwner()->GetColumnCount() == 0 )
3879         return false;
3880
3881     if ( !m_useCellFocus )
3882         return false;
3883
3884     if ( node )
3885     {
3886         // navigation shouldn't work in branch nodes without other columns:
3887         if ( node->HasChildren() && !GetModel()->HasContainerColumns(node->GetItem()) )
3888             return false;
3889     }
3890
3891     if ( m_currentCol == NULL || !m_currentColSetByKeyboard )
3892     {
3893         if ( forward )
3894         {
3895             m_currentCol = GetOwner()->GetColumnAt(1);
3896             m_currentColSetByKeyboard = true;
3897             RefreshRow(m_currentRow);
3898             return true;
3899         }
3900         else
3901             return false;
3902     }
3903
3904     int idx = GetOwner()->GetColumnIndex(m_currentCol) + (forward ? +1 : -1);
3905
3906     if ( idx >= (int)GetOwner()->GetColumnCount() )
3907         return false;
3908
3909     GetOwner()->EnsureVisible(m_currentRow, idx);
3910
3911     if ( idx < 1 )
3912     {
3913         // We are going to the left of the second column. Reset to whole-row
3914         // focus (which means first column would be edited).
3915         m_currentCol = NULL;
3916         RefreshRow(m_currentRow);
3917         return true;
3918     }
3919
3920     m_currentCol = GetOwner()->GetColumnAt(idx);
3921     m_currentColSetByKeyboard = true;
3922     RefreshRow(m_currentRow);
3923     return true;
3924 }
3925
3926 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3927 {
3928     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3929     {
3930         // let the base handle mouse wheel events.
3931         event.Skip();
3932         return;
3933     }
3934
3935     // set the focus to ourself if any of the mouse buttons are pressed
3936     if(event.ButtonDown() && !HasFocus())
3937         SetFocus();
3938
3939     int x = event.GetX();
3940     int y = event.GetY();
3941     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3942     wxDataViewColumn *col = NULL;
3943
3944     int xpos = 0;
3945     unsigned int cols = GetOwner()->GetColumnCount();
3946     unsigned int i;
3947     for (i = 0; i < cols; i++)
3948     {
3949         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3950         if (c->IsHidden())
3951             continue;      // skip it!
3952
3953         if (x < xpos + c->GetWidth())
3954         {
3955             col = c;
3956             break;
3957         }
3958         xpos += c->GetWidth();
3959     }
3960
3961     wxDataViewModel* const model = GetModel();
3962
3963     const unsigned int current = GetLineAt( y );
3964     const wxDataViewItem item = GetItemByRow(current);
3965
3966     // Handle right clicking here, before everything else as context menu
3967     // events should be sent even when we click outside of any item, unlike all
3968     // the other ones.
3969     if (event.RightUp())
3970     {
3971         wxWindow *parent = GetParent();
3972         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3973         le.SetEventObject(parent);
3974         le.SetModel(model);
3975
3976         if ( item.IsOk() && col )
3977         {
3978             le.SetItem( item );
3979             le.SetColumn( col->GetModelColumn() );
3980             le.SetDataViewColumn( col );
3981
3982             wxVariant value;
3983             model->GetValue( value, item, col->GetModelColumn() );
3984             le.SetValue(value);
3985         }
3986
3987         parent->ProcessWindowEvent(le);
3988         return;
3989     }
3990
3991     if (!col)
3992     {
3993         event.Skip();
3994         return;
3995     }
3996
3997     wxDataViewRenderer *cell = col->GetRenderer();
3998     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3999     {
4000         // Unselect all if below the last row ?
4001         event.Skip();
4002         return;
4003     }
4004
4005     wxDataViewColumn* const
4006         expander = GetExpanderColumnOrFirstOne(GetOwner());
4007
4008     // Test whether the mouse is hovering over the expander (a.k.a tree "+"
4009     // button) and also determine the offset of the real cell start, skipping
4010     // the indentation and the expander itself.
4011     bool hoverOverExpander = false;
4012     int itemOffset = 0;
4013     if ((!IsList()) && (expander == col))
4014     {
4015         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
4016
4017         int indent = node->GetIndentLevel();
4018         itemOffset = GetOwner()->GetIndent()*indent;
4019
4020         if ( node->HasChildren() )
4021         {
4022             // we make the rectangle we are looking in a bit bigger than the actual
4023             // visual expander so the user can hit that little thing reliably
4024             wxRect rect(itemOffset,
4025                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
4026                         m_lineHeight, m_lineHeight);
4027
4028             if( rect.Contains(x, y) )
4029             {
4030                 // So the mouse is over the expander
4031                 hoverOverExpander = true;
4032                 if (m_underMouse && m_underMouse != node)
4033                 {
4034                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
4035                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
4036                 }
4037                 if (m_underMouse != node)
4038                 {
4039                     // wxLogMessage("Do the row: %d", current);
4040                     RefreshRow(current);
4041                 }
4042                 m_underMouse = node;
4043             }
4044         }
4045
4046         // Account for the expander as well, even if this item doesn't have it,
4047         // its parent does so it still counts for the offset.
4048         itemOffset += m_lineHeight;
4049     }
4050     if (!hoverOverExpander)
4051     {
4052         if (m_underMouse != NULL)
4053         {
4054             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
4055             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
4056             m_underMouse = NULL;
4057         }
4058     }
4059
4060 #if wxUSE_DRAG_AND_DROP
4061     if (event.Dragging())
4062     {
4063         if (m_dragCount == 0)
4064         {
4065             // we have to report the raw, physical coords as we want to be
4066             // able to call HitTest(event.m_pointDrag) from the user code to
4067             // get the item being dragged
4068             m_dragStart = event.GetPosition();
4069         }
4070
4071         m_dragCount++;
4072
4073         if (m_dragCount != 3)
4074             return;
4075
4076         if (event.LeftIsDown())
4077         {
4078             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
4079                                              &m_dragStart.x, &m_dragStart.y );
4080             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
4081             wxDataViewItem itemDragged = GetItemByRow( drag_item_row );
4082
4083             // Notify cell about drag
4084             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
4085             event.SetEventObject( m_owner );
4086             event.SetItem( itemDragged );
4087             event.SetModel( model );
4088             if (!m_owner->HandleWindowEvent( event ))
4089                 return;
4090
4091             if (!event.IsAllowed())
4092                 return;
4093
4094             wxDataObject *obj = event.GetDataObject();
4095             if (!obj)
4096                 return;
4097
4098             wxDataViewDropSource drag( this, drag_item_row );
4099             drag.SetData( *obj );
4100             /* wxDragResult res = */ drag.DoDragDrop(event.GetDragFlags());
4101             delete obj;
4102         }
4103         return;
4104     }
4105     else
4106     {
4107         m_dragCount = 0;
4108     }
4109 #endif // wxUSE_DRAG_AND_DROP
4110
4111     bool simulateClick = false;
4112
4113     if (event.ButtonDClick())
4114     {
4115         m_renameTimer->Stop();
4116         m_lastOnSame = false;
4117     }
4118
4119     bool ignore_other_columns =
4120         ((expander != col) &&
4121         (model->IsContainer(item)) &&
4122         (!model->HasContainerColumns(item)));
4123
4124     if (event.LeftDClick())
4125     {
4126         if(hoverOverExpander)
4127         {
4128             // a double click on the expander will be converted into a "simulated" normal click
4129             simulateClick = true;
4130         }
4131         else if ( current == m_lineLastClicked )
4132         {
4133             wxWindow *parent = GetParent();
4134             wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
4135             le.SetItem( item );
4136             le.SetColumn( col->GetModelColumn() );
4137             le.SetDataViewColumn( col );
4138             le.SetEventObject(parent);
4139             le.SetModel(GetModel());
4140
4141             parent->ProcessWindowEvent(le);
4142             return;
4143         }
4144         else
4145         {
4146             // The first click was on another item, so don't interpret this as
4147             // a double click, but as a simple click instead
4148             simulateClick = true;
4149         }
4150     }
4151
4152     if (event.LeftUp() && !hoverOverExpander)
4153     {
4154         if (m_lineSelectSingleOnUp != (unsigned int)-1)
4155         {
4156             // select single line
4157             SelectAllRows( false );
4158             SelectRow( m_lineSelectSingleOnUp, true );
4159             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
4160         }
4161
4162         // If the user click the expander, we do not do editing even if the column
4163         // with expander are editable
4164         if (m_lastOnSame && !ignore_other_columns)
4165         {
4166             if ((col == m_currentCol) && (current == m_currentRow) &&
4167                 IsCellEditableInMode(item, col, wxDATAVIEW_CELL_EDITABLE) )
4168             {
4169                 m_renameTimer->Start( 100, true );
4170             }
4171         }
4172
4173         m_lastOnSame = false;
4174         m_lineSelectSingleOnUp = (unsigned int)-1;
4175     }
4176     else if(!event.LeftUp())
4177     {
4178         // This is necessary, because after a DnD operation in
4179         // from and to ourself, the up event is swallowed by the
4180         // DnD code. So on next non-up event (which means here and
4181         // now) m_lineSelectSingleOnUp should be reset.
4182         m_lineSelectSingleOnUp = (unsigned int)-1;
4183     }
4184
4185     if (event.RightDown())
4186     {
4187         m_lineBeforeLastClicked = m_lineLastClicked;
4188         m_lineLastClicked = current;
4189
4190         // If the item is already selected, do not update the selection.
4191         // Multi-selections should not be cleared if a selected item is clicked.
4192         if (!IsRowSelected(current))
4193         {
4194             SelectAllRows(false);
4195             const unsigned oldCurrent = m_currentRow;
4196             ChangeCurrentRow(current);
4197             SelectRow(m_currentRow,true);
4198             RefreshRow(oldCurrent);
4199             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4200         }
4201     }
4202     else if (event.MiddleDown())
4203     {
4204     }
4205
4206     if((event.LeftDown() || simulateClick) && hoverOverExpander)
4207     {
4208         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
4209
4210         // hoverOverExpander being true tells us that our node must be
4211         // valid and have children.
4212         // So we don't need any extra checks.
4213         if( node->IsOpen() )
4214             Collapse(current);
4215         else
4216             Expand(current);
4217     }
4218     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
4219     {
4220         m_lineBeforeLastClicked = m_lineLastClicked;
4221         m_lineLastClicked = current;
4222
4223         unsigned int oldCurrentRow = m_currentRow;
4224         bool oldWasSelected = IsRowSelected(m_currentRow);
4225
4226         bool cmdModifierDown = event.CmdDown();
4227         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
4228         {
4229             if ( IsSingleSel() || !IsRowSelected(current) )
4230             {
4231                 SelectAllRows( false );
4232                 ChangeCurrentRow(current);
4233                 SelectRow(m_currentRow,true);
4234                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4235             }
4236             else // multi sel & current is highlighted & no mod keys
4237             {
4238                 m_lineSelectSingleOnUp = current;
4239                 ChangeCurrentRow(current); // change focus
4240             }
4241         }
4242         else // multi sel & either ctrl or shift is down
4243         {
4244             if (cmdModifierDown)
4245             {
4246                 ChangeCurrentRow(current);
4247                 ReverseRowSelection(m_currentRow);
4248                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
4249             }
4250             else if (event.ShiftDown())
4251             {
4252                 ChangeCurrentRow(current);
4253
4254                 unsigned int lineFrom = oldCurrentRow,
4255                     lineTo = current;
4256
4257                 if ( lineTo < lineFrom )
4258                 {
4259                     lineTo = lineFrom;
4260                     lineFrom = m_currentRow;
4261                 }
4262
4263                 SelectRows(lineFrom, lineTo, true);
4264                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
4265             }
4266             else // !ctrl, !shift
4267             {
4268                 // test in the enclosing if should make it impossible
4269                 wxFAIL_MSG( wxT("how did we get here?") );
4270             }
4271         }
4272
4273         if (m_currentRow != oldCurrentRow)
4274             RefreshRow( oldCurrentRow );
4275
4276         wxDataViewColumn *oldCurrentCol = m_currentCol;
4277
4278         // Update selection here...
4279         m_currentCol = col;
4280         m_currentColSetByKeyboard = false;
4281
4282         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
4283                         (current == oldCurrentRow)) && oldWasSelected;
4284
4285         // Call ActivateCell() after everything else as under GTK+
4286         if ( IsCellEditableInMode(item, col, wxDATAVIEW_CELL_ACTIVATABLE) )
4287         {
4288             // notify cell about click
4289             cell->PrepareForItem(model, item, col->GetModelColumn());
4290
4291             wxRect cell_rect( xpos + itemOffset,
4292                               GetLineStart( current ),
4293                               col->GetWidth() - itemOffset,
4294                               GetLineHeight( current ) );
4295
4296             // Report position relative to the cell's custom area, i.e.
4297             // no the entire space as given by the control but the one
4298             // used by the renderer after calculation of alignment etc.
4299
4300             // adjust the rectangle ourselves to account for the alignment
4301             wxRect rectItem = cell_rect;
4302             const int align = cell->GetAlignment();
4303             if ( align != wxDVR_DEFAULT_ALIGNMENT )
4304             {
4305                 const wxSize size = cell->GetSize();
4306
4307                 if ( size.x >= 0 && size.x < cell_rect.width )
4308                 {
4309                     if ( align & wxALIGN_CENTER_HORIZONTAL )
4310                         rectItem.x += (cell_rect.width - size.x)/2;
4311                     else if ( align & wxALIGN_RIGHT )
4312                         rectItem.x += cell_rect.width - size.x;
4313                     // else: wxALIGN_LEFT is the default
4314                 }
4315
4316                 if ( size.y >= 0 && size.y < cell_rect.height )
4317                 {
4318                     if ( align & wxALIGN_CENTER_VERTICAL )
4319                         rectItem.y += (cell_rect.height - size.y)/2;
4320                     else if ( align & wxALIGN_BOTTOM )
4321                         rectItem.y += cell_rect.height - size.y;
4322                     // else: wxALIGN_TOP is the default
4323                 }
4324             }
4325
4326             wxMouseEvent event2(event);
4327             event2.m_x -= rectItem.x;
4328             event2.m_y -= rectItem.y;
4329             m_owner->CalcUnscrolledPosition(event2.m_x, event2.m_y, &event2.m_x, &event2.m_y);
4330
4331              /* ignore ret */ cell->WXActivateCell
4332                                     (
4333                                         cell_rect,
4334                                         model,
4335                                         item,
4336                                         col->GetModelColumn(),
4337                                         &event2
4338                                     );
4339         }
4340     }
4341 }
4342
4343 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
4344 {
4345     m_hasFocus = true;
4346
4347     if (HasCurrentRow())
4348         Refresh();
4349
4350     event.Skip();
4351 }
4352
4353 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
4354 {
4355     m_hasFocus = false;
4356
4357     if (HasCurrentRow())
4358         Refresh();
4359
4360     event.Skip();
4361 }
4362
4363 void wxDataViewMainWindow::OnColumnsCountChanged()
4364 {
4365     int editableCount = 0;
4366
4367     const unsigned cols = GetOwner()->GetColumnCount();
4368     for ( unsigned i = 0; i < cols; i++ )
4369     {
4370         wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
4371         if ( c->IsHidden() )
4372             continue;
4373         if ( c->GetRenderer()->GetMode() != wxDATAVIEW_CELL_INERT )
4374             editableCount++;
4375     }
4376
4377     m_useCellFocus = (editableCount > 1);
4378
4379     UpdateDisplay();
4380 }
4381
4382 //-----------------------------------------------------------------------------
4383 // wxDataViewCtrl
4384 //-----------------------------------------------------------------------------
4385
4386 WX_DEFINE_LIST(wxDataViewColumnList)
4387
4388 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
4389 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
4390     EVT_SIZE(wxDataViewCtrl::OnSize)
4391 END_EVENT_TABLE()
4392
4393 wxDataViewCtrl::~wxDataViewCtrl()
4394 {
4395     if (m_notifier)
4396         GetModel()->RemoveNotifier( m_notifier );
4397
4398     m_cols.Clear();
4399     m_colsBestWidths.clear();
4400 }
4401
4402 void wxDataViewCtrl::Init()
4403 {
4404     m_cols.DeleteContents(true);
4405     m_notifier = NULL;
4406
4407     // No sorting column at start
4408     m_sortingColumnIdx = wxNOT_FOUND;
4409
4410     m_headerArea = NULL;
4411
4412     m_colsDirty = false;
4413 }
4414
4415 bool wxDataViewCtrl::Create(wxWindow *parent,
4416                             wxWindowID id,
4417                             const wxPoint& pos,
4418                             const wxSize& size,
4419                             long style,
4420                             const wxValidator& validator,
4421                             const wxString& name)
4422 {
4423 //    if ( (style & wxBORDER_MASK) == 0)
4424 //        style |= wxBORDER_SUNKEN;
4425
4426     Init();
4427
4428     if (!wxControl::Create( parent, id, pos, size,
4429                             style | wxScrolledWindowStyle, validator, name))
4430         return false;
4431
4432     SetInitialSize(size);
4433
4434 #ifdef __WXMAC__
4435     MacSetClipChildren( true );
4436 #endif
4437
4438     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4439
4440     // We use the cursor keys for moving the selection, not scrolling, so call
4441     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4442     // keyboard events forwarded to us from wxListMainWindow.
4443     DisableKeyboardScrolling();
4444
4445     if (HasFlag(wxDV_NO_HEADER))
4446         m_headerArea = NULL;
4447     else
4448         m_headerArea = new wxDataViewHeaderWindow(this);
4449
4450     SetTargetWindow( m_clientArea );
4451
4452     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4453     if (m_headerArea)
4454         sizer->Add( m_headerArea, 0, wxGROW );
4455     sizer->Add( m_clientArea, 1, wxGROW );
4456     SetSizer( sizer );
4457
4458     return true;
4459 }
4460
4461 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4462 {
4463     return wxBORDER_THEME;
4464 }
4465
4466 #ifdef __WXMSW__
4467 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4468                                         WXWPARAM wParam,
4469                                         WXLPARAM lParam)
4470 {
4471     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4472
4473 #ifndef __WXWINCE__
4474     // we need to process arrows ourselves for scrolling
4475     if ( nMsg == WM_GETDLGCODE )
4476     {
4477         rc |= DLGC_WANTARROWS;
4478     }
4479 #endif
4480
4481     return rc;
4482 }
4483 #endif
4484
4485 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4486 {
4487     wxSize newsize = size;
4488     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4489     newsize.y -= m_headerArea->GetSize().y;
4490
4491     return newsize;
4492 }
4493
4494 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4495 {
4496     // We need to override OnSize so that our scrolled
4497     // window a) does call Layout() to use sizers for
4498     // positioning the controls but b) does not query
4499     // the sizer for their size and use that for setting
4500     // the scrollable area as set that ourselves by
4501     // calling SetScrollbar() further down.
4502
4503     Layout();
4504
4505     AdjustScrollbars();
4506
4507     // We must redraw the headers if their height changed. Normally this
4508     // shouldn't happen as the control shouldn't let itself be resized beneath
4509     // its minimal height but avoid the display artefacts that appear if it
4510     // does happen, e.g. because there is really not enough vertical space.
4511     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4512             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4513     {
4514         m_headerArea->Refresh();
4515     }
4516 }
4517
4518 void wxDataViewCtrl::SetFocus()
4519 {
4520     if (m_clientArea)
4521         m_clientArea->SetFocus();
4522 }
4523
4524 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4525 {
4526     if (!wxDataViewCtrlBase::AssociateModel( model ))
4527         return false;
4528
4529     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4530
4531     model->AddNotifier( m_notifier );
4532
4533     m_clientArea->DestroyTree();
4534
4535     m_clientArea->BuildTree(model);
4536
4537     m_clientArea->UpdateDisplay();
4538
4539     return true;
4540 }
4541
4542 #if wxUSE_DRAG_AND_DROP
4543
4544 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4545 {
4546     return m_clientArea->EnableDragSource( format );
4547 }
4548
4549 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4550 {
4551     return m_clientArea->EnableDropTarget( format );
4552 }
4553
4554 #endif // wxUSE_DRAG_AND_DROP
4555
4556 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4557 {
4558     if (!wxDataViewCtrlBase::AppendColumn(col))
4559         return false;
4560
4561     m_cols.Append( col );
4562     m_colsBestWidths.push_back(CachedColWidthInfo());
4563     OnColumnsCountChanged();
4564     return true;
4565 }
4566
4567 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4568 {
4569     if (!wxDataViewCtrlBase::PrependColumn(col))
4570         return false;
4571
4572     m_cols.Insert( col );
4573     m_colsBestWidths.insert(m_colsBestWidths.begin(), CachedColWidthInfo());
4574     OnColumnsCountChanged();
4575     return true;
4576 }
4577
4578 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4579 {
4580     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4581         return false;
4582
4583     m_cols.Insert( pos, col );
4584     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, CachedColWidthInfo());
4585     OnColumnsCountChanged();
4586     return true;
4587 }
4588
4589 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4590 {
4591     if ( m_headerArea )
4592         m_headerArea->UpdateColumn(idx);
4593
4594     m_clientArea->UpdateDisplay();
4595 }
4596
4597 void wxDataViewCtrl::OnColumnsCountChanged()
4598 {
4599     if (m_headerArea)
4600         m_headerArea->SetColumnCount(GetColumnCount());
4601
4602     m_clientArea->OnColumnsCountChanged();
4603 }
4604
4605 void wxDataViewCtrl::DoSetExpanderColumn()
4606 {
4607     m_clientArea->UpdateDisplay();
4608 }
4609
4610 void wxDataViewCtrl::DoSetIndent()
4611 {
4612     m_clientArea->UpdateDisplay();
4613 }
4614
4615 unsigned int wxDataViewCtrl::GetColumnCount() const
4616 {
4617     return m_cols.GetCount();
4618 }
4619
4620 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4621 {
4622     if ( !m_clientArea )
4623         return false;
4624
4625     m_clientArea->SetRowHeight(lineHeight);
4626
4627     return true;
4628 }
4629
4630 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4631 {
4632     return m_cols[idx];
4633 }
4634
4635 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4636 {
4637     // columns can't be reordered if there is no header window which allows
4638     // to do this
4639     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4640                                     : pos;
4641
4642     return GetColumn(idx);
4643 }
4644
4645 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4646 {
4647     const unsigned count = m_cols.size();
4648     for ( unsigned n = 0; n < count; n++ )
4649     {
4650         if ( m_cols[n] == column )
4651             return n;
4652     }
4653
4654     return wxNOT_FOUND;
4655 }
4656
4657 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4658 {
4659     if ( m_colsBestWidths[idx].width != 0 )
4660         return m_colsBestWidths[idx].width;
4661
4662     const int count = m_clientArea->GetRowCount();
4663     wxDataViewColumn *column = GetColumn(idx);
4664     wxDataViewRenderer *renderer =
4665         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4666
4667     class MaxWidthCalculator
4668     {
4669     public:
4670         MaxWidthCalculator(const wxDataViewCtrl *dvc,
4671                            wxDataViewMainWindow *clientArea,
4672                            wxDataViewRenderer *renderer,
4673                            const wxDataViewModel *model,
4674                            unsigned column,
4675                            int expanderSize)
4676             : m_width(0),
4677               m_dvc(dvc),
4678               m_clientArea(clientArea),
4679               m_renderer(renderer),
4680               m_model(model),
4681               m_column(column),
4682               m_expanderSize(expanderSize)
4683
4684         {
4685             m_isExpanderCol =
4686                 !clientArea->IsList() &&
4687                 (column == 0 ||
4688                  GetExpanderColumnOrFirstOne(const_cast<wxDataViewCtrl*>(dvc)) == dvc->GetColumnAt(column));
4689         }
4690
4691         void UpdateWithWidth(int width)
4692         {
4693             m_width = wxMax(m_width, width);
4694         }
4695
4696         void UpdateWithRow(int row)
4697         {
4698             int indent = 0;
4699             wxDataViewItem item;
4700
4701             if ( m_isExpanderCol )
4702             {
4703                 wxDataViewTreeNode *node = m_clientArea->GetTreeNodeByRow(row);
4704                 item = node->GetItem();
4705                 indent = m_dvc->GetIndent() * node->GetIndentLevel() + m_expanderSize;
4706             }
4707             else
4708             {
4709                 item = m_clientArea->GetItemByRow(row);
4710             }
4711
4712             m_renderer->PrepareForItem(m_model, item, m_column);
4713             m_width = wxMax(m_width, m_renderer->GetSize().x + indent);
4714         }
4715
4716         int GetMaxWidth() const { return m_width; }
4717
4718     private:
4719         int m_width;
4720         const wxDataViewCtrl *m_dvc;
4721         wxDataViewMainWindow *m_clientArea;
4722         wxDataViewRenderer *m_renderer;
4723         const wxDataViewModel *m_model;
4724         unsigned m_column;
4725         bool m_isExpanderCol;
4726         int m_expanderSize;
4727     };
4728
4729     MaxWidthCalculator calculator(this, m_clientArea, renderer,
4730                                   GetModel(), column->GetModelColumn(),
4731                                   m_clientArea->GetRowHeight());
4732
4733     calculator.UpdateWithWidth(column->GetMinWidth());
4734
4735     if ( m_headerArea )
4736         calculator.UpdateWithWidth(m_headerArea->GetColumnTitleWidth(*column));
4737
4738     // The code below deserves some explanation. For very large controls, we
4739     // simply can't afford to calculate sizes for all items, it takes too
4740     // long. So the best we can do is to check the first and the last N/2
4741     // items in the control for some sufficiently large N and calculate best
4742     // sizes from that. That can result in the calculated best width being too
4743     // small for some outliers, but it's better to get slightly imperfect
4744     // result than to wait several seconds after every update. To avoid highly
4745     // visible miscalculations, we also include all currently visible items
4746     // no matter what.  Finally, the value of N is determined dynamically by
4747     // measuring how much time we spent on the determining item widths so far.
4748
4749 #if wxUSE_STOPWATCH
4750     int top_part_end = count;
4751     static const long CALC_TIMEOUT = 20/*ms*/;
4752     // don't call wxStopWatch::Time() too often
4753     static const unsigned CALC_CHECK_FREQ = 100;
4754     wxStopWatch timer;
4755 #else
4756     // use some hard-coded limit, that's the best we can do without timer
4757     int top_part_end = wxMin(500, count);
4758 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4759
4760     int row = 0;
4761
4762     for ( row = 0; row < top_part_end; row++ )
4763     {
4764 #if wxUSE_STOPWATCH
4765         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4766              timer.Time() > CALC_TIMEOUT )
4767             break;
4768 #endif // wxUSE_STOPWATCH
4769         calculator.UpdateWithRow(row);
4770     }
4771
4772     // row is the first unmeasured item now; that's our value of N/2
4773
4774     if ( row < count )
4775     {
4776         top_part_end = row;
4777
4778         // add bottom N/2 items now:
4779         const int bottom_part_start = wxMax(row, count - row);
4780         for ( row = bottom_part_start; row < count; row++ )
4781         {
4782             calculator.UpdateWithRow(row);
4783         }
4784
4785         // finally, include currently visible items in the calculation:
4786         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4787         int first_visible = m_clientArea->GetLineAt(origin.y);
4788         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4789
4790         first_visible = wxMax(first_visible, top_part_end);
4791         last_visible = wxMin(bottom_part_start, last_visible);
4792
4793         for ( row = first_visible; row < last_visible; row++ )
4794         {
4795             calculator.UpdateWithRow(row);
4796         }
4797
4798         wxLogTrace("dataview",
4799                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4800                    top_part_end,
4801                    count - bottom_part_start,
4802                    wxMax(0, last_visible - first_visible),
4803                    count);
4804     }
4805
4806     int max_width = calculator.GetMaxWidth();
4807     if ( max_width > 0 )
4808         max_width += 2 * PADDING_RIGHTLEFT;
4809
4810     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx].width = max_width;
4811     return max_width;
4812 }
4813
4814 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4815                                 unsigned int WXUNUSED(new_pos))
4816 {
4817     // do _not_ reorder m_cols elements here, they should always be in the
4818     // order in which columns were added, we only display the columns in
4819     // different order
4820     m_clientArea->UpdateDisplay();
4821 }
4822
4823 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4824 {
4825     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4826     if (!ret)
4827         return false;
4828
4829     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4830     m_cols.Erase(ret);
4831
4832     if ( m_clientArea->GetCurrentColumn() == column )
4833         m_clientArea->ClearCurrentColumn();
4834
4835     OnColumnsCountChanged();
4836
4837     return true;
4838 }
4839
4840 bool wxDataViewCtrl::ClearColumns()
4841 {
4842     SetExpanderColumn(NULL);
4843     m_cols.Clear();
4844     m_colsBestWidths.clear();
4845
4846     m_clientArea->ClearCurrentColumn();
4847
4848     OnColumnsCountChanged();
4849
4850     return true;
4851 }
4852
4853 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4854 {
4855     m_colsBestWidths[idx].width = 0;
4856     m_colsBestWidths[idx].dirty = true;
4857     m_colsDirty = true;
4858 }
4859
4860 void wxDataViewCtrl::InvalidateColBestWidths()
4861 {
4862     // mark all columns as dirty:
4863     m_colsBestWidths.clear();
4864     m_colsBestWidths.resize(m_cols.size());
4865     m_colsDirty = true;
4866 }
4867
4868 void wxDataViewCtrl::UpdateColWidths()
4869 {
4870     m_colsDirty = false;
4871
4872     if ( !m_headerArea )
4873         return;
4874
4875     const unsigned len = m_colsBestWidths.size();
4876     for ( unsigned i = 0; i < len; i++ )
4877     {
4878         // Note that we have to have an explicit 'dirty' flag here instead of
4879         // checking if the width==0, as is done in GetBestColumnWidth().
4880         //
4881         // Testing width==0 wouldn't work correctly if some code called
4882         // GetWidth() after col. width invalidation but before
4883         // wxDataViewCtrl::UpdateColWidths() was called at idle time. This
4884         // would result in the header's column width getting out of sync with
4885         // the control itself.
4886         if ( m_colsBestWidths[i].dirty )
4887         {
4888             m_headerArea->UpdateColumn(i);
4889             m_colsBestWidths[i].dirty = false;
4890         }
4891     }
4892 }
4893
4894 void wxDataViewCtrl::OnInternalIdle()
4895 {
4896     wxDataViewCtrlBase::OnInternalIdle();
4897
4898     if ( m_colsDirty )
4899         UpdateColWidths();
4900 }
4901
4902 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4903 {
4904     unsigned int len = GetColumnCount();
4905     for ( unsigned int i = 0; i < len; i++ )
4906     {
4907         wxDataViewColumn * col = GetColumnAt(i);
4908         if (column==col)
4909             return i;
4910     }
4911
4912     return wxNOT_FOUND;
4913 }
4914
4915 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4916 {
4917     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4918                                             : GetColumn(m_sortingColumnIdx);
4919 }
4920
4921 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4922 {
4923     return GetItemByRow(m_clientArea->GetCurrentRow());
4924 }
4925
4926 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4927 {
4928     const int row = m_clientArea->GetRowByItem(item);
4929
4930     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4931     if ( static_cast<unsigned>(row) != oldCurrent )
4932     {
4933         m_clientArea->ChangeCurrentRow(row);
4934         m_clientArea->RefreshRow(oldCurrent);
4935         m_clientArea->RefreshRow(row);
4936     }
4937 }
4938
4939 wxDataViewColumn *wxDataViewCtrl::GetCurrentColumn() const
4940 {
4941     return m_clientArea->GetCurrentColumn();
4942 }
4943
4944 int wxDataViewCtrl::GetSelectedItemsCount() const
4945 {
4946     return m_clientArea->GetSelections().size();
4947 }
4948
4949 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4950 {
4951     sel.Empty();
4952     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4953
4954     const size_t len = selections.size();
4955     for ( size_t i = 0; i < len; i++ )
4956     {
4957         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4958         if ( item.IsOk() )
4959         {
4960             sel.Add(item);
4961         }
4962         else
4963         {
4964             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4965         }
4966     }
4967
4968     return sel.size();
4969 }
4970
4971 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4972 {
4973     wxDataViewSelection selection(wxDataViewSelectionCmp);
4974
4975     wxDataViewItem last_parent;
4976
4977     int len = sel.GetCount();
4978     for( int i = 0; i < len; i ++ )
4979     {
4980         wxDataViewItem item = sel[i];
4981         wxDataViewItem parent = GetModel()->GetParent( item );
4982         if (parent)
4983         {
4984             if (parent != last_parent)
4985                 ExpandAncestors(item);
4986         }
4987
4988         last_parent = parent;
4989         int row = m_clientArea->GetRowByItem( item );
4990         if( row >= 0 )
4991             selection.Add( static_cast<unsigned int>(row) );
4992     }
4993
4994     m_clientArea->SetSelections( selection );
4995 }
4996
4997 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4998 {
4999     ExpandAncestors( item );
5000
5001     int row = m_clientArea->GetRowByItem( item );
5002     if( row >= 0 )
5003     {
5004         // Unselect all rows before select another in the single select mode
5005         if (m_clientArea->IsSingleSel())
5006             m_clientArea->SelectAllRows(false);
5007
5008         m_clientArea->SelectRow(row, true);
5009
5010         // Also set focus to the selected item
5011         m_clientArea->ChangeCurrentRow( row );
5012     }
5013 }
5014
5015 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
5016 {
5017     int row = m_clientArea->GetRowByItem( item );
5018     if( row >= 0 )
5019         m_clientArea->SelectRow(row, false);
5020 }
5021
5022 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
5023 {
5024     int row = m_clientArea->GetRowByItem( item );
5025     if( row >= 0 )
5026     {
5027         return m_clientArea->IsRowSelected(row);
5028     }
5029     return false;
5030 }
5031
5032 void wxDataViewCtrl::SetAlternateRowColour(const wxColour& colour)
5033 {
5034     m_alternateRowColour = colour;
5035 }
5036
5037 void wxDataViewCtrl::SelectAll()
5038 {
5039     m_clientArea->SelectAllRows(true);
5040 }
5041
5042 void wxDataViewCtrl::UnselectAll()
5043 {
5044     m_clientArea->SelectAllRows(false);
5045 }
5046
5047 void wxDataViewCtrl::EnsureVisible( int row, int column )
5048 {
5049     if( row < 0 )
5050         row = 0;
5051     if( row > (int) m_clientArea->GetRowCount() )
5052         row = m_clientArea->GetRowCount();
5053
5054     int first = m_clientArea->GetFirstVisibleRow();
5055     int last = m_clientArea->GetLastVisibleRow();
5056     if( row < first )
5057         m_clientArea->ScrollTo( row, column );
5058     else if( row > last )
5059         m_clientArea->ScrollTo( row - last + first, column );
5060     else
5061         m_clientArea->ScrollTo( first, column );
5062 }
5063
5064 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
5065 {
5066     ExpandAncestors( item );
5067
5068     m_clientArea->RecalculateDisplay();
5069
5070     int row = m_clientArea->GetRowByItem(item);
5071     if( row >= 0 )
5072     {
5073         if( column == NULL )
5074             EnsureVisible(row, -1);
5075         else
5076             EnsureVisible( row, GetColumnIndex(column) );
5077     }
5078
5079 }
5080
5081 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
5082                               wxDataViewColumn* &column ) const
5083 {
5084     m_clientArea->HitTest(point, item, column);
5085 }
5086
5087 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
5088                                     const wxDataViewColumn* column ) const
5089 {
5090     return m_clientArea->GetItemRect(item, column);
5091 }
5092
5093 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
5094 {
5095     return m_clientArea->GetItemByRow( row );
5096 }
5097
5098 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
5099 {
5100     return m_clientArea->GetRowByItem( item );
5101 }
5102
5103 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
5104 {
5105     ExpandAncestors( item );
5106
5107     int row = m_clientArea->GetRowByItem( item );
5108     if (row != -1)
5109     {
5110         m_clientArea->Expand(row);
5111         InvalidateColBestWidths();
5112     }
5113 }
5114
5115 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
5116 {
5117     int row = m_clientArea->GetRowByItem( item );
5118     if (row != -1)
5119     {
5120         m_clientArea->Collapse(row);
5121         InvalidateColBestWidths();
5122     }
5123 }
5124
5125 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
5126 {
5127     int row = m_clientArea->GetRowByItem( item );
5128     if (row != -1)
5129         return m_clientArea->IsExpanded(row);
5130     return false;
5131 }
5132
5133 void wxDataViewCtrl::EditItem(const wxDataViewItem& item, const wxDataViewColumn *column)
5134 {
5135     wxCHECK_RET( item.IsOk(), "invalid item" );
5136     wxCHECK_RET( column, "no column provided" );
5137
5138     m_clientArea->StartEditing(item, column);
5139 }
5140
5141 #endif // !wxUSE_GENERICDATAVIEWCTRL
5142
5143 #endif // wxUSE_DATAVIEWCTRL