src/generic/datavgen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datavgen.cpp
   3 // Purpose:     wxDataViewCtrl generic implementation
   4 // Author:      Robert Roebling
   5 // Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_DATAVIEWCTRL
  19
  20 #include "wx/dataview.h"
  21
  22 #ifdef wxUSE_GENERICDATAVIEWCTRL
  23
  24 #ifndef WX_PRECOMP
  25     #ifdef __WXMSW__
  26         #include "wx/msw/private.h"
  27         #include "wx/msw/wrapwin.h"
  28         #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  29     #endif
  30     #include "wx/sizer.h"
  31     #include "wx/log.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/timer.h"
  34     #include "wx/settings.h"
  35     #include "wx/msgdlg.h"
  36     #include "wx/dcscreen.h"
  37     #include "wx/frame.h"
  38 #endif
  39
  40 #include "wx/stockitem.h"
  41 #include "wx/calctrl.h"
  42 #include "wx/popupwin.h"
  43 #include "wx/renderer.h"
  44 #include "wx/dcbuffer.h"
  45 #include "wx/icon.h"
  46 #include "wx/list.h"
  47 #include "wx/listimpl.cpp"
  48 #include "wx/imaglist.h"
  49 #include "wx/headerctrl.h"
  50 #include "wx/dnd.h"
  51 #include "wx/stopwatch.h"
  52
  53 //-----------------------------------------------------------------------------
  54 // classes
  55 //-----------------------------------------------------------------------------
  56
  57 class wxDataViewColumn;
  58 class wxDataViewHeaderWindow;
  59 class wxDataViewCtrl;
  60
  61 //-----------------------------------------------------------------------------
  62 // classes
  63 //-----------------------------------------------------------------------------
  64
  65 static const int SCROLL_UNIT_X = 15;
  66
  67 // the cell padding on the left/right
  68 static const int PADDING_RIGHTLEFT = 3;
  69
  70 // the expander space margin
  71 static const int EXPANDER_MARGIN = 4;
  72
  73 #ifdef __WXMSW__
  74 static const int EXPANDER_OFFSET = 4;
  75 #else
  76 static const int EXPANDER_OFFSET = 1;
  77 #endif
  78
  79 // Below is the compare stuff.
  80 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  81 // fast search when needed
  82 static wxDataViewModel* g_model;
  83 static int g_column = -2;
  84 static bool g_asending = true;
  85
  86 //-----------------------------------------------------------------------------
  87 // wxDataViewColumn
  88 //-----------------------------------------------------------------------------
  89
  90 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
  91 {
  92     m_width = width;
  93     m_minWidth = 0;
  94     m_align = align;
  95     m_flags = flags;
  96     m_sort = false;
  97     m_sortAscending = true;
  98 }
  99
 100 int wxDataViewColumn::GetWidth() const
 101 {
 102     switch ( m_width )
 103     {
 104         case wxCOL_WIDTH_DEFAULT:
 105             return wxDVC_DEFAULT_WIDTH;
 106
 107         case wxCOL_WIDTH_AUTOSIZE:
 108             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 109             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 110
 111         default:
 112             return m_width;
 113     }
 114 }
 115
 116 void wxDataViewColumn::UpdateDisplay()
 117 {
 118     if (m_owner)
 119     {
 120         int idx = m_owner->GetColumnIndex( this );
 121         m_owner->OnColumnChange( idx );
 122     }
 123 }
 124
 125 //-----------------------------------------------------------------------------
 126 // wxDataViewHeaderWindow
 127 //-----------------------------------------------------------------------------
 128
 129 class wxDataViewHeaderWindow : public wxHeaderCtrl
 130 {
 131 public:
 132     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 133         : wxHeaderCtrl(parent)
 134     {
 135     }
 136
 137     wxDataViewCtrl *GetOwner() const
 138         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 139
 140 protected:
 141     // implement/override wxHeaderCtrl functions by forwarding them to the main
 142     // control
 143     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 144     {
 145         return *(GetOwner()->GetColumn(idx));
 146     }
 147
 148     // FIXME: currently unused
 149     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 150     {
 151         wxDataViewCtrl * const owner = GetOwner();
 152
 153         int widthContents = owner->GetBestColumnWidth(idx);
 154         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 155         owner->OnColumnChange(idx);
 156
 157         return true;
 158     }
 159
 160 private:
 161     bool SendEvent(wxEventType type, unsigned int n)
 162     {
 163         wxDataViewCtrl * const owner = GetOwner();
 164         wxDataViewEvent event(type, owner->GetId());
 165
 166         event.SetEventObject(owner);
 167         event.SetColumn(n);
 168         event.SetDataViewColumn(owner->GetColumn(n));
 169         event.SetModel(owner->GetModel());
 170
 171         // for events created by wxDataViewHeaderWindow the
 172         // row / value fields are not valid
 173         return owner->GetEventHandler()->ProcessEvent(event);
 174     }
 175
 176     void OnClick(wxHeaderCtrlEvent& event)
 177     {
 178         const unsigned idx = event.GetColumn();
 179
 180         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 181             return;
 182
 183         // default handling for the column click is to sort by this column or
 184         // toggle its sort order
 185         wxDataViewCtrl * const owner = GetOwner();
 186         wxDataViewColumn * const col = owner->GetColumn(idx);
 187         if ( !col->IsSortable() )
 188         {
 189             // no default handling for non-sortable columns
 190             event.Skip();
 191             return;
 192         }
 193
 194         if ( col->IsSortKey() )
 195         {
 196             // already using this column for sorting, just change the order
 197             col->ToggleSortOrder();
 198         }
 199         else // not using this column for sorting yet
 200         {
 201             // first unset the old sort column if any
 202             int oldSortKey = owner->GetSortingColumnIndex();
 203             if ( oldSortKey != wxNOT_FOUND )
 204             {
 205                 owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 206                 owner->OnColumnChange(oldSortKey);
 207             }
 208
 209             owner->SetSortingColumnIndex(idx);
 210             col->SetAsSortKey();
 211         }
 212
 213         wxDataViewModel * const model = owner->GetModel();
 214         if ( model )
 215             model->Resort();
 216
 217         owner->OnColumnChange(idx);
 218     }
 219
 220     void OnRClick(wxHeaderCtrlEvent& event)
 221     {
 222         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 223                         event.GetColumn()) )
 224             event.Skip();
 225     }
 226
 227     void OnResize(wxHeaderCtrlEvent& event)
 228     {
 229         wxDataViewCtrl * const owner = GetOwner();
 230
 231         const unsigned col = event.GetColumn();
 232         owner->GetColumn(col)->SetWidth(event.GetWidth());
 233         GetOwner()->OnColumnChange(col);
 234     }
 235
 236     void OnEndReorder(wxHeaderCtrlEvent& event)
 237     {
 238         wxDataViewCtrl * const owner = GetOwner();
 239         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 240                         event.GetNewOrder());
 241     }
 242
 243     DECLARE_EVENT_TABLE()
 244     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 245 };
 246
 247 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 248     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 249     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 250
 251     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 252     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 253
 254     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 255 END_EVENT_TABLE()
 256
 257 //-----------------------------------------------------------------------------
 258 // wxDataViewRenameTimer
 259 //-----------------------------------------------------------------------------
 260
 261 class wxDataViewRenameTimer: public wxTimer
 262 {
 263 private:
 264     wxDataViewMainWindow *m_owner;
 265
 266 public:
 267     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 268     void Notify();
 269 };
 270
 271 //-----------------------------------------------------------------------------
 272 // wxDataViewTreeNode
 273 //-----------------------------------------------------------------------------
 274
 275 class wxDataViewTreeNode;
 276 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 277 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 278
 279 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 280                                            wxDataViewTreeNode ** node2);
 281 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 282
 283 class wxDataViewTreeNode
 284 {
 285 public:
 286     wxDataViewTreeNode( wxDataViewTreeNode * parent = NULL )
 287     {
 288         m_parent = parent;
 289         if (!parent)
 290             m_open = true;
 291         else
 292             m_open = false;
 293         m_hasChildren = false;
 294         m_subTreeCount  = 0;
 295     }
 296
 297     ~wxDataViewTreeNode()
 298     {
 299     }
 300
 301     wxDataViewTreeNode * GetParent() const { return m_parent; }
 302     void SetParent( wxDataViewTreeNode * parent ) { m_parent = parent; }
 303     wxDataViewTreeNodes &  GetNodes() { return m_nodes; }
 304     wxDataViewTreeLeaves & GetChildren() { return m_leaves; }
 305
 306     void AddNode( wxDataViewTreeNode * node )
 307     {
 308         m_leaves.Add( node->GetItem().GetID() );
 309         if (g_column >= -1)
 310             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 311         m_nodes.Add( node );
 312         if (g_column >= -1)
 313             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 314     }
 315     void AddLeaf( void * leaf )
 316     {
 317         m_leaves.Add( leaf );
 318         if (g_column >= -1)
 319             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 320     }
 321
 322     wxDataViewItem & GetItem() { return m_item; }
 323     const wxDataViewItem & GetItem() const { return m_item; }
 324     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 325
 326     unsigned int GetChildrenNumber() const { return m_leaves.GetCount(); }
 327     unsigned int GetNodeNumber() const { return m_nodes.GetCount(); }
 328     int GetIndentLevel() const
 329     {
 330         int ret = 0;
 331         const wxDataViewTreeNode * node = this;
 332         while( node->GetParent()->GetParent() != NULL )
 333         {
 334             node = node->GetParent();
 335             ret ++;
 336         }
 337         return ret;
 338     }
 339
 340     bool IsOpen() const
 341     {
 342         return m_open;
 343     }
 344
 345     void ToggleOpen()
 346     {
 347         int len = m_nodes.GetCount();
 348         int sum = 0;
 349         for ( int i = 0;i < len; i ++)
 350             sum += m_nodes[i]->GetSubTreeCount();
 351
 352         sum += m_leaves.GetCount();
 353         if (m_open)
 354         {
 355             ChangeSubTreeCount(-sum);
 356             m_open = !m_open;
 357         }
 358         else
 359         {
 360             m_open = !m_open;
 361             ChangeSubTreeCount(sum);
 362         }
 363     }
 364     bool HasChildren() const { return m_hasChildren; }
 365     void SetHasChildren( bool has ){ m_hasChildren = has; }
 366
 367     void SetSubTreeCount( int num ) { m_subTreeCount = num; }
 368     int GetSubTreeCount() const { return m_subTreeCount; }
 369     void ChangeSubTreeCount( int num )
 370     {
 371         if( !m_open )
 372             return;
 373         m_subTreeCount += num;
 374         if( m_parent )
 375             m_parent->ChangeSubTreeCount(num);
 376     }
 377
 378     void Resort()
 379     {
 380         if (g_column >= -1)
 381         {
 382             m_nodes.Sort( &wxGenericTreeModelNodeCmp );
 383             int len = m_nodes.GetCount();
 384             for (int i = 0; i < len; i ++)
 385                 m_nodes[i]->Resort();
 386             m_leaves.Sort( &wxGenericTreeModelItemCmp );
 387         }
 388     }
 389
 390 private:
 391     wxDataViewTreeNode  *m_parent;
 392     wxDataViewTreeNodes  m_nodes;
 393     wxDataViewTreeLeaves m_leaves;
 394     wxDataViewItem       m_item;
 395     bool                 m_open;
 396     bool                 m_hasChildren;
 397     int                  m_subTreeCount;
 398 };
 399
 400 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 401                                            wxDataViewTreeNode ** node2)
 402 {
 403     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 404 }
 405
 406 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 407 {
 408     return g_model->Compare( *id1, *id2, g_column, g_asending );
 409 }
 410
 411
 412 //-----------------------------------------------------------------------------
 413 // wxDataViewMainWindow
 414 //-----------------------------------------------------------------------------
 415
 416 WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection,
 417                                             WXDLLIMPEXP_ADV);
 418 WX_DECLARE_LIST(wxDataViewItem, ItemList);
 419 WX_DEFINE_LIST(ItemList)
 420
 421 class wxDataViewMainWindow: public wxWindow
 422 {
 423 public:
 424     wxDataViewMainWindow( wxDataViewCtrl *parent,
 425                             wxWindowID id,
 426                             const wxPoint &pos = wxDefaultPosition,
 427                             const wxSize &size = wxDefaultSize,
 428                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 429     virtual ~wxDataViewMainWindow();
 430
 431     bool IsList() const { return GetOwner()->GetModel()->IsListModel(); }
 432     bool IsVirtualList() const { return m_root == NULL; }
 433
 434     // notifications from wxDataViewModel
 435     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 436     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 437     bool ItemChanged( const wxDataViewItem &item );
 438     bool ValueChanged( const wxDataViewItem &item, unsigned int col );
 439     bool Cleared();
 440     void Resort()
 441     {
 442         if (!IsVirtualList())
 443         {
 444             SortPrepare();
 445             m_root->Resort();
 446         }
 447         UpdateDisplay();
 448     }
 449
 450     void SortPrepare()
 451     {
 452         g_model = GetOwner()->GetModel();
 453         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 454         if( !col )
 455         {
 456             if (g_model->HasDefaultCompare())
 457                 g_column = -1;
 458             else
 459                 g_column = -2;
 460
 461             g_asending = true;
 462             return;
 463         }
 464         g_column = col->GetModelColumn();
 465         g_asending = col->IsSortOrderAscending();
 466     }
 467
 468     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 469     wxDataViewCtrl *GetOwner() { return m_owner; }
 470     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 471
 472 #if wxUSE_DRAG_AND_DROP
 473     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 474 #endif // wxUSE_DRAG_AND_DROP
 475     void OnPaint( wxPaintEvent &event );
 476     void OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event);
 477     void OnChar( wxKeyEvent &event );
 478     void OnMouse( wxMouseEvent &event );
 479     void OnSetFocus( wxFocusEvent &event );
 480     void OnKillFocus( wxFocusEvent &event );
 481
 482     void UpdateDisplay();
 483     void RecalculateDisplay();
 484     void OnInternalIdle();
 485
 486     void OnRenameTimer();
 487
 488     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 489     void ScrollTo( int rows, int column );
 490
 491     unsigned GetCurrentRow() const { return m_currentRow; }
 492     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 493     void ChangeCurrentRow( unsigned int row );
 494
 495     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 496     bool IsEmpty() { return GetRowCount() == 0; }
 497
 498     int GetCountPerPage() const;
 499     int GetEndOfLastCol() const;
 500     unsigned int GetFirstVisibleRow() const;
 501
 502     // I change this method to un const because in the tree view,
 503     // the displaying number of the tree are changing along with the
 504     // expanding/collapsing of the tree nodes
 505     unsigned int GetLastVisibleRow();
 506     unsigned int GetRowCount();
 507
 508     wxDataViewItem GetSelection() const;
 509     wxDataViewSelection GetSelections(){ return m_selection; }
 510     void SetSelections( const wxDataViewSelection & sel )
 511         { m_selection = sel; UpdateDisplay(); }
 512     void Select( const wxArrayInt& aSelections );
 513     void SelectAllRows( bool on );
 514     void SelectRow( unsigned int row, bool on );
 515     void SelectRows( unsigned int from, unsigned int to, bool on );
 516     void ReverseRowSelection( unsigned int row );
 517     bool IsRowSelected( unsigned int row );
 518     void SendSelectionChangedEvent( const wxDataViewItem& item);
 519
 520     void RefreshRow( unsigned int row );
 521     void RefreshRows( unsigned int from, unsigned int to );
 522     void RefreshRowsAfter( unsigned int firstRow );
 523
 524     // returns the colour to be used for drawing the rules
 525     wxColour GetRuleColour() const
 526     {
 527         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 528     }
 529
 530     wxRect GetLineRect( unsigned int row ) const;
 531
 532     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 533     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 534     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 535
 536     // Some useful functions for row and item mapping
 537     wxDataViewItem GetItemByRow( unsigned int row ) const;
 538     int GetRowByItem( const wxDataViewItem & item ) const;
 539
 540     // Methods for building the mapping tree
 541     void BuildTree( wxDataViewModel  * model );
 542     void DestroyTree();
 543     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 544     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 545
 546     void Expand( unsigned int row );
 547     void Collapse( unsigned int row );
 548     bool IsExpanded( unsigned int row ) const;
 549     bool HasChildren( unsigned int row ) const;
 550
 551 #if wxUSE_DRAG_AND_DROP
 552     bool EnableDragSource( const wxDataFormat &format );
 553     bool EnableDropTarget( const wxDataFormat &format );
 554
 555     void RemoveDropHint();
 556     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 557     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 558     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 559     void OnLeave();
 560 #endif // wxUSE_DRAG_AND_DROP
 561
 562 private:
 563     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 564     // We did not need this temporarily
 565     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 566
 567     int RecalculateCount();
 568
 569     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 570
 571     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 572
 573 private:
 574     wxDataViewCtrl             *m_owner;
 575     int                         m_lineHeight;
 576     bool                        m_dirty;
 577
 578     wxDataViewColumn           *m_currentCol;
 579     unsigned int                m_currentRow;
 580     wxDataViewSelection         m_selection;
 581
 582     wxDataViewRenameTimer      *m_renameTimer;
 583     bool                        m_lastOnSame;
 584
 585     bool                        m_hasFocus;
 586
 587 #if wxUSE_DRAG_AND_DROP
 588     int                         m_dragCount;
 589     wxPoint                     m_dragStart;
 590
 591     bool                        m_dragEnabled;
 592     wxDataFormat                m_dragFormat;
 593
 594     bool                        m_dropEnabled;
 595     wxDataFormat                m_dropFormat;
 596     bool                        m_dropHint;
 597     unsigned int                m_dropHintLine;
 598 #endif // wxUSE_DRAG_AND_DROP
 599
 600     // for double click logic
 601     unsigned int m_lineLastClicked,
 602         m_lineBeforeLastClicked,
 603         m_lineSelectSingleOnUp;
 604
 605     // the pen used to draw horiz/vertical rules
 606     wxPen m_penRule;
 607
 608     // the pen used to draw the expander and the lines
 609     wxPen m_penExpander;
 610
 611     // This is the tree structure of the model
 612     wxDataViewTreeNode * m_root;
 613     int m_count;
 614
 615     // This is the tree node under the cursor
 616     wxDataViewTreeNode * m_underMouse;
 617
 618 private:
 619     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 620     DECLARE_EVENT_TABLE()
 621 };
 622
 623 // ---------------------------------------------------------
 624 // wxGenericDataViewModelNotifier
 625 // ---------------------------------------------------------
 626
 627 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 628 {
 629 public:
 630     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 631         { m_mainWindow = mainWindow; }
 632
 633     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 634         { return m_mainWindow->ItemAdded( parent , item ); }
 635     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 636         { return m_mainWindow->ItemDeleted( parent, item ); }
 637     virtual bool ItemChanged( const wxDataViewItem & item )
 638         { return m_mainWindow->ItemChanged(item);  }
 639     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 640         { return m_mainWindow->ValueChanged( item, col ); }
 641     virtual bool Cleared()
 642         { return m_mainWindow->Cleared(); }
 643     virtual void Resort()
 644         { m_mainWindow->Resort(); }
 645
 646     wxDataViewMainWindow    *m_mainWindow;
 647 };
 648
 649 // ---------------------------------------------------------
 650 // wxDataViewRenderer
 651 // ---------------------------------------------------------
 652
 653 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 654
 655 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 656                                         wxDataViewCellMode mode,
 657                                         int align) :
 658     wxDataViewCustomRendererBase( varianttype, mode, align )
 659 {
 660     m_align = align;
 661     m_mode = mode;
 662     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 663     m_dc = NULL;
 664 }
 665
 666 wxDataViewRenderer::~wxDataViewRenderer()
 667 {
 668     delete m_dc;
 669 }
 670
 671 wxDC *wxDataViewRenderer::GetDC()
 672 {
 673     if (m_dc == NULL)
 674     {
 675         if (GetOwner() == NULL)
 676             return NULL;
 677         if (GetOwner()->GetOwner() == NULL)
 678             return NULL;
 679         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 680     }
 681
 682     return m_dc;
 683 }
 684
 685 void wxDataViewRenderer::SetAlignment( int align )
 686 {
 687     m_align=align;
 688 }
 689
 690 int wxDataViewRenderer::GetAlignment() const
 691 {
 692     return m_align;
 693 }
 694
 695 // ---------------------------------------------------------
 696 // wxDataViewCustomRenderer
 697 // ---------------------------------------------------------
 698
 699 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 700
 701 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 702                         wxDataViewCellMode mode, int align ) :
 703     wxDataViewRenderer( varianttype, mode, align )
 704 {
 705 }
 706
 707 // ---------------------------------------------------------
 708 // wxDataViewTextRenderer
 709 // ---------------------------------------------------------
 710
 711 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 712
 713 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 714                                                 wxDataViewCellMode mode, int align ) :
 715     wxDataViewRenderer( varianttype, mode, align )
 716 {
 717 }
 718
 719 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 720 {
 721     m_text = value.GetString();
 722
 723     return true;
 724 }
 725
 726 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 727 {
 728     return false;
 729 }
 730
 731 bool wxDataViewTextRenderer::HasEditorCtrl() const
 732 {
 733     return true;
 734 }
 735
 736 wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 737         wxRect labelRect, const wxVariant &value )
 738 {
 739     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 740                                        wxPoint(labelRect.x,labelRect.y),
 741                                        wxSize(labelRect.width,labelRect.height) );
 742
 743     // select the text in the control an place the cursor at the end
 744     ctrl->SetInsertionPointEnd();
 745     ctrl->SelectAll();
 746
 747     return ctrl;
 748 }
 749
 750 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )
 751 {
 752     wxTextCtrl *text = (wxTextCtrl*) editor;
 753     value = text->GetValue();
 754     return true;
 755 }
 756
 757 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 758 {
 759     RenderText(m_text, 0, rect, dc, state);
 760     return true;
 761 }
 762
 763 wxSize wxDataViewTextRenderer::GetSize() const
 764 {
 765     if (!m_text.empty())
 766         return GetTextExtent(m_text);
 767     else
 768         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 769 }
 770
 771 // ---------------------------------------------------------
 772 // wxDataViewBitmapRenderer
 773 // ---------------------------------------------------------
 774
 775 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 776
 777 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 778                                                     wxDataViewCellMode mode, int align ) :
 779     wxDataViewRenderer( varianttype, mode, align )
 780 {
 781 }
 782
 783 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 784 {
 785     if (value.GetType() == wxT("wxBitmap"))
 786         m_bitmap << value;
 787     if (value.GetType() == wxT("wxIcon"))
 788         m_icon << value;
 789
 790     return true;
 791 }
 792
 793 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 794 {
 795     return false;
 796 }
 797
 798 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 799 {
 800     if (m_bitmap.Ok())
 801         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 802     else if (m_icon.Ok())
 803         dc->DrawIcon( m_icon, cell.x, cell.y );
 804
 805     return true;
 806 }
 807
 808 wxSize wxDataViewBitmapRenderer::GetSize() const
 809 {
 810     if (m_bitmap.Ok())
 811         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 812     else if (m_icon.Ok())
 813         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 814
 815     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 816 }
 817
 818 // ---------------------------------------------------------
 819 // wxDataViewToggleRenderer
 820 // ---------------------------------------------------------
 821
 822 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 823
 824 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 825                         wxDataViewCellMode mode, int align ) :
 826     wxDataViewRenderer( varianttype, mode, align )
 827 {
 828     m_toggle = false;
 829 }
 830
 831 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 832 {
 833     m_toggle = value.GetBool();
 834
 835     return true;
 836 }
 837
 838 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 839 {
 840     return false;
 841 }
 842
 843 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 844 {
 845     int flags = 0;
 846     if (m_toggle)
 847         flags |= wxCONTROL_CHECKED;
 848     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE)
 849         flags |= wxCONTROL_DISABLED;
 850
 851     // check boxes we draw must always have the same, standard size (if it's
 852     // bigger than the cell size the checkbox will be truncated because the
 853     // caller had set the clipping rectangle to prevent us from drawing outside
 854     // the cell)
 855     cell.SetSize(GetSize());
 856
 857     wxRendererNative::Get().DrawCheckBox(
 858             GetOwner()->GetOwner(),
 859             *dc,
 860             cell,
 861             flags );
 862
 863     return true;
 864 }
 865
 866 void wxDataViewToggleRenderer::WXOnActivate(wxDataViewModel *model,
 867                                             const wxVariant& valueOld,
 868                                             const wxDataViewItem & item,
 869                                             unsigned int col)
 870 {
 871     model->ChangeValue(!valueOld.GetBool(), item, col);
 872 }
 873
 874 wxSize wxDataViewToggleRenderer::GetSize() const
 875 {
 876     // the window parameter is not used by GetCheckBoxSize() so it's
 877     // safe to pass NULL
 878     return wxRendererNative::Get().GetCheckBoxSize(NULL);
 879 }
 880
 881 // ---------------------------------------------------------
 882 // wxDataViewProgressRenderer
 883 // ---------------------------------------------------------
 884
 885 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
 886
 887 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
 888     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
 889     wxDataViewRenderer( varianttype, mode, align )
 890 {
 891     m_label = label;
 892     m_value = 0;
 893 }
 894
 895 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
 896 {
 897     m_value = (long) value;
 898
 899     if (m_value < 0) m_value = 0;
 900     if (m_value > 100) m_value = 100;
 901
 902     return true;
 903 }
 904
 905 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 906 {
 907     value = (long) m_value;
 908     return true;
 909 }
 910
 911 bool
 912 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
 913 {
 914     // deflate the rect to leave a small border between bars in adjacent rows
 915     wxRect bar = rect.Deflate(0, 1);
 916
 917     dc->SetBrush( *wxTRANSPARENT_BRUSH );
 918     dc->SetPen( *wxBLACK_PEN );
 919     dc->DrawRectangle( bar );
 920
 921     bar.width = (int)(bar.width * m_value / 100.);
 922     dc->SetPen( *wxTRANSPARENT_PEN );
 923
 924     const wxDataViewItemAttr& attr = GetAttr();
 925     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
 926                                   : *wxBLUE_BRUSH );
 927     dc->DrawRectangle( bar );
 928
 929     return true;
 930 }
 931
 932 wxSize wxDataViewProgressRenderer::GetSize() const
 933 {
 934     return wxSize(40,12);
 935 }
 936
 937 // ---------------------------------------------------------
 938 // wxDataViewDateRenderer
 939 // ---------------------------------------------------------
 940
 941 #define wxUSE_DATE_RENDERER_POPUP (wxUSE_CALENDARCTRL && wxUSE_POPUPWIN)
 942
 943 #if wxUSE_DATE_RENDERER_POPUP
 944
 945 class wxDataViewDateRendererPopupTransient: public wxPopupTransientWindow
 946 {
 947 public:
 948     wxDataViewDateRendererPopupTransient( wxWindow* parent, wxDateTime *value,
 949         wxDataViewModel *model, const wxDataViewItem & item, unsigned int col) :
 950         wxPopupTransientWindow( parent, wxBORDER_SIMPLE ),
 951         m_item( item )
 952     {
 953         m_model = model;
 954         m_col = col;
 955         m_cal = new wxCalendarCtrl( this, wxID_ANY, *value );
 956         wxBoxSizer *sizer = new wxBoxSizer( wxHORIZONTAL );
 957         sizer->Add( m_cal, 1, wxGROW );
 958         SetSizer( sizer );
 959         sizer->Fit( this );
 960     }
 961
 962     void OnCalendar( wxCalendarEvent &event );
 963
 964     wxCalendarCtrl      *m_cal;
 965     wxDataViewModel *m_model;
 966     unsigned int               m_col;
 967     const wxDataViewItem &   m_item;
 968
 969 protected:
 970     virtual void OnDismiss()
 971     {
 972     }
 973
 974 private:
 975     DECLARE_EVENT_TABLE()
 976 };
 977
 978 BEGIN_EVENT_TABLE(wxDataViewDateRendererPopupTransient,wxPopupTransientWindow)
 979     EVT_CALENDAR( wxID_ANY, wxDataViewDateRendererPopupTransient::OnCalendar )
 980 END_EVENT_TABLE()
 981
 982 void wxDataViewDateRendererPopupTransient::OnCalendar( wxCalendarEvent &event )
 983 {
 984     m_model->ChangeValue( event.GetDate(), m_item, m_col );
 985     DismissAndNotify();
 986 }
 987
 988 #endif // wxUSE_DATE_RENDERER_POPUP
 989
 990 IMPLEMENT_ABSTRACT_CLASS(wxDataViewDateRenderer, wxDataViewRenderer)
 991
 992 wxDataViewDateRenderer::wxDataViewDateRenderer( const wxString &varianttype,
 993                         wxDataViewCellMode mode, int align ) :
 994     wxDataViewRenderer( varianttype, mode, align )
 995 {
 996 }
 997
 998 bool wxDataViewDateRenderer::SetValue( const wxVariant &value )
 999 {
1000     m_date = value.GetDateTime();
1001
1002     return true;
1003 }
1004
1005 bool wxDataViewDateRenderer::GetValue( wxVariant &value ) const
1006 {
1007     value = m_date;
1008     return true;
1009 }
1010
1011 bool wxDataViewDateRenderer::Render( wxRect cell, wxDC *dc, int state )
1012 {
1013     wxString tmp = m_date.FormatDate();
1014     RenderText( tmp, 0, cell, dc, state );
1015     return true;
1016 }
1017
1018 wxSize wxDataViewDateRenderer::GetSize() const
1019 {
1020     return GetTextExtent(m_date.FormatDate());
1021 }
1022
1023 void wxDataViewDateRenderer::WXOnActivate(wxDataViewModel *model,
1024                                           const wxVariant& valueOld,
1025                                           const wxDataViewItem & item,
1026                                           unsigned int col )
1027 {
1028     wxDateTime dtOld = valueOld.GetDateTime();
1029
1030 #if wxUSE_DATE_RENDERER_POPUP
1031     wxDataViewDateRendererPopupTransient *popup = new wxDataViewDateRendererPopupTransient(
1032         GetOwner()->GetOwner()->GetParent(), &dtOld, model, item, col);
1033     wxPoint pos = wxGetMousePosition();
1034     popup->Move( pos );
1035     popup->Layout();
1036     popup->Popup( popup->m_cal );
1037 #else // !wxUSE_DATE_RENDERER_POPUP
1038     wxMessageBox(dtOld.Format());
1039 #endif // wxUSE_DATE_RENDERER_POPUP/!wxUSE_DATE_RENDERER_POPUP
1040 }
1041
1042 // ---------------------------------------------------------
1043 // wxDataViewIconTextRenderer
1044 // ---------------------------------------------------------
1045
1046 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1047
1048 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1049 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1050     wxDataViewRenderer( varianttype, mode, align )
1051 {
1052     SetMode(mode);
1053     SetAlignment(align);
1054 }
1055
1056 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1057 {
1058     m_value << value;
1059     return true;
1060 }
1061
1062 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1063 {
1064     return false;
1065 }
1066
1067 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1068 {
1069     int xoffset = 0;
1070
1071     const wxIcon& icon = m_value.GetIcon();
1072     if ( icon.IsOk() )
1073     {
1074         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1075         xoffset = icon.GetWidth()+4;
1076     }
1077
1078     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1079
1080     return true;
1081 }
1082
1083 wxSize wxDataViewIconTextRenderer::GetSize() const
1084 {
1085     if (!m_value.GetText().empty())
1086     {
1087         wxSize size = GetTextExtent(m_value.GetText());
1088
1089         if (m_value.GetIcon().IsOk())
1090             size.x += m_value.GetIcon().GetWidth() + 4;
1091         return size;
1092     }
1093     return wxSize(80,20);
1094 }
1095
1096 wxControl* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1097 {
1098     wxDataViewIconText iconText;
1099     iconText << value;
1100
1101     wxString text = iconText.GetText();
1102
1103     // adjust the label rect to take the width of the icon into account
1104     if (iconText.GetIcon().IsOk())
1105     {
1106         int w = iconText.GetIcon().GetWidth() + 4;
1107         labelRect.x += w;
1108         labelRect.width -= w;
1109     }
1110
1111     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1112                                        wxPoint(labelRect.x,labelRect.y),
1113                                        wxSize(labelRect.width,labelRect.height) );
1114
1115     // select the text in the control an place the cursor at the end
1116     ctrl->SetInsertionPointEnd();
1117     ctrl->SelectAll();
1118
1119     return ctrl;
1120 }
1121
1122 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant& value )
1123 {
1124     wxTextCtrl *text = (wxTextCtrl*) editor;
1125
1126     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1127     value << iconText;
1128     return true;
1129 }
1130
1131 //-----------------------------------------------------------------------------
1132 // wxDataViewDropTarget
1133 //-----------------------------------------------------------------------------
1134
1135 #if wxUSE_DRAG_AND_DROP
1136
1137 class wxBitmapCanvas: public wxWindow
1138 {
1139 public:
1140     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1141     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1142     {
1143         m_bitmap = bitmap;
1144         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1145     }
1146
1147     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1148     {
1149         wxPaintDC dc(this);
1150         dc.DrawBitmap( m_bitmap, 0, 0);
1151     }
1152
1153     wxBitmap m_bitmap;
1154 };
1155
1156 class wxDataViewDropSource: public wxDropSource
1157 {
1158 public:
1159     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1160         wxDropSource( win )
1161     {
1162         m_win = win;
1163         m_row = row;
1164         m_hint = NULL;
1165     }
1166
1167     ~wxDataViewDropSource()
1168     {
1169         delete m_hint;
1170     }
1171
1172     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1173     {
1174         wxPoint pos = wxGetMousePosition();
1175
1176         if (!m_hint)
1177         {
1178             int liney = m_win->GetLineStart( m_row );
1179             int linex = 0;
1180             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1181             m_win->ClientToScreen( &linex, &liney );
1182             m_dist_x = pos.x - linex;
1183             m_dist_y = pos.y - liney;
1184
1185             int indent = 0;
1186             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1187             m_dist_x -= indent;
1188             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1189                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1190                                         ib.GetSize(),
1191                                         wxFRAME_TOOL_WINDOW |
1192                                         wxFRAME_FLOAT_ON_PARENT |
1193                                         wxFRAME_NO_TASKBAR |
1194                                         wxNO_BORDER );
1195             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1196             m_hint->Show();
1197         }
1198         else
1199         {
1200             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1201             m_hint->SetTransparent( 128 );
1202         }
1203
1204         return false;
1205     }
1206
1207     wxDataViewMainWindow   *m_win;
1208     unsigned int            m_row;
1209     wxFrame                *m_hint;
1210     int m_dist_x,m_dist_y;
1211 };
1212
1213
1214 class wxDataViewDropTarget: public wxDropTarget
1215 {
1216 public:
1217     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1218         wxDropTarget( obj )
1219     {
1220         m_win = win;
1221     }
1222
1223     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1224     {
1225         wxDataFormat format = GetMatchingPair();
1226         if (format == wxDF_INVALID)
1227             return wxDragNone;
1228         return m_win->OnDragOver( format, x, y, def);
1229     }
1230
1231     virtual bool OnDrop( wxCoord x, wxCoord y )
1232     {
1233         wxDataFormat format = GetMatchingPair();
1234         if (format == wxDF_INVALID)
1235             return false;
1236         return m_win->OnDrop( format, x, y );
1237     }
1238
1239     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1240     {
1241         wxDataFormat format = GetMatchingPair();
1242         if (format == wxDF_INVALID)
1243             return wxDragNone;
1244         if (!GetData())
1245             return wxDragNone;
1246         return m_win->OnData( format, x, y, def );
1247     }
1248
1249     virtual void OnLeave()
1250         { m_win->OnLeave(); }
1251
1252     wxDataViewMainWindow   *m_win;
1253 };
1254
1255 #endif // wxUSE_DRAG_AND_DROP
1256
1257 //-----------------------------------------------------------------------------
1258 // wxDataViewRenameTimer
1259 //-----------------------------------------------------------------------------
1260
1261 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1262 {
1263     m_owner = owner;
1264 }
1265
1266 void wxDataViewRenameTimer::Notify()
1267 {
1268     m_owner->OnRenameTimer();
1269 }
1270
1271 //-----------------------------------------------------------------------------
1272 // wxDataViewMainWindow
1273 //-----------------------------------------------------------------------------
1274
1275 // The tree building helper, declared firstly
1276 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1277                              wxDataViewTreeNode * node);
1278
1279 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1280 {
1281     if (row1 > row2) return 1;
1282     if (row1 == row2) return 0;
1283     return -1;
1284 }
1285
1286 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1287
1288 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1289     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1290     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1291     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1292     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1293     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1294 END_EVENT_TABLE()
1295
1296 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1297     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1298     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1299     m_selection( wxDataViewSelectionCmp )
1300
1301 {
1302     SetOwner( parent );
1303
1304     m_lastOnSame = false;
1305     m_renameTimer = new wxDataViewRenameTimer( this );
1306
1307     // TODO: user better initial values/nothing selected
1308     m_currentCol = NULL;
1309     m_currentRow = 0;
1310
1311     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1312
1313 #if wxUSE_DRAG_AND_DROP
1314     m_dragCount = 0;
1315     m_dragStart = wxPoint(0,0);
1316
1317     m_dragEnabled = false;
1318     m_dropEnabled = false;
1319     m_dropHint = false;
1320     m_dropHintLine = (unsigned int) -1;
1321 #endif // wxUSE_DRAG_AND_DROP
1322
1323     m_lineLastClicked = (unsigned int) -1;
1324     m_lineBeforeLastClicked = (unsigned int) -1;
1325     m_lineSelectSingleOnUp = (unsigned int) -1;
1326
1327     m_hasFocus = false;
1328
1329     SetBackgroundColour( *wxWHITE );
1330
1331     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1332
1333     m_penRule = wxPen(GetRuleColour());
1334
1335     // compose a pen whichcan draw black lines
1336     // TODO: maybe there is something system colour to use
1337     m_penExpander = wxPen(wxColour(0,0,0));
1338
1339     m_root = new wxDataViewTreeNode( NULL );
1340     m_root->SetHasChildren(true);
1341
1342     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1343     m_count = -1;
1344     m_underMouse = NULL;
1345     UpdateDisplay();
1346 }
1347
1348 wxDataViewMainWindow::~wxDataViewMainWindow()
1349 {
1350     DestroyTree();
1351     delete m_renameTimer;
1352 }
1353
1354
1355 #if wxUSE_DRAG_AND_DROP
1356 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1357 {
1358     m_dragFormat = format;
1359     m_dragEnabled = format != wxDF_INVALID;
1360
1361     return true;
1362 }
1363
1364 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1365 {
1366     m_dropFormat = format;
1367     m_dropEnabled = format != wxDF_INVALID;
1368
1369     if (m_dropEnabled)
1370         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1371
1372     return true;
1373 }
1374
1375 void wxDataViewMainWindow::RemoveDropHint()
1376 {
1377     if (m_dropHint)
1378     {
1379             m_dropHint = false;
1380             RefreshRow( m_dropHintLine );
1381             m_dropHintLine = (unsigned int) -1;
1382     }
1383 }
1384
1385 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1386                                                wxCoord y, wxDragResult def )
1387 {
1388     int xx = x;
1389     int yy = y;
1390     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1391     unsigned int row = GetLineAt( yy );
1392
1393     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1394     {
1395         RemoveDropHint();
1396         return wxDragNone;
1397     }
1398
1399     wxDataViewItem item = GetItemByRow( row );
1400
1401     wxDataViewModel *model = GetOwner()->GetModel();
1402
1403     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1404     event.SetEventObject( m_owner );
1405     event.SetItem( item );
1406     event.SetModel( model );
1407     event.SetDataFormat( format );
1408     if (!m_owner->HandleWindowEvent( event ))
1409     {
1410         RemoveDropHint();
1411         return wxDragNone;
1412     }
1413
1414     if (!event.IsAllowed())
1415     {
1416         RemoveDropHint();
1417         return wxDragNone;
1418     }
1419
1420
1421     if (m_dropHint && (row != m_dropHintLine))
1422         RefreshRow( m_dropHintLine );
1423     m_dropHint = true;
1424     m_dropHintLine = row;
1425     RefreshRow( row );
1426
1427     return def;
1428 }
1429
1430 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1431 {
1432     RemoveDropHint();
1433
1434     int xx = x;
1435     int yy = y;
1436     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1437     unsigned int row = GetLineAt( yy );
1438
1439     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1440         return false;
1441
1442     wxDataViewItem item = GetItemByRow( row );
1443
1444     wxDataViewModel *model = GetOwner()->GetModel();
1445
1446     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1447     event.SetEventObject( m_owner );
1448     event.SetItem( item );
1449     event.SetModel( model );
1450     event.SetDataFormat( format );
1451     if (!m_owner->HandleWindowEvent( event ))
1452         return false;
1453
1454     if (!event.IsAllowed())
1455         return false;
1456
1457     return true;
1458 }
1459
1460 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1461                                            wxDragResult def )
1462 {
1463     int xx = x;
1464     int yy = y;
1465     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1466     unsigned int row = GetLineAt( yy );
1467
1468     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1469         return wxDragNone;
1470
1471     wxDataViewItem item = GetItemByRow( row );
1472
1473     wxDataViewModel *model = GetOwner()->GetModel();
1474
1475     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1476
1477     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1478     event.SetEventObject( m_owner );
1479     event.SetItem( item );
1480     event.SetModel( model );
1481     event.SetDataFormat( format );
1482     event.SetDataSize( obj->GetSize() );
1483     event.SetDataBuffer( obj->GetData() );
1484     if (!m_owner->HandleWindowEvent( event ))
1485         return wxDragNone;
1486
1487     if (!event.IsAllowed())
1488         return wxDragNone;
1489
1490     return def;
1491 }
1492
1493 void wxDataViewMainWindow::OnLeave()
1494 {
1495     RemoveDropHint();
1496 }
1497
1498 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1499 {
1500     int height = GetLineHeight( row );
1501     int width = 0;
1502     unsigned int cols = GetOwner()->GetColumnCount();
1503     unsigned int col;
1504     for (col = 0; col < cols; col++)
1505     {
1506         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1507         if (column->IsHidden())
1508             continue;      // skip it!
1509         width += column->GetWidth();
1510     }
1511
1512     indent = 0;
1513     if (!IsList())
1514     {
1515         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1516         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1517         indent = indent + m_lineHeight;
1518             // try to use the m_lineHeight as the expander space
1519
1520         if(!node->HasChildren())
1521             delete node;
1522     }
1523     width -= indent;
1524
1525     wxBitmap bitmap( width, height );
1526     wxMemoryDC dc( bitmap );
1527     dc.SetFont( GetFont() );
1528     dc.SetPen( *wxBLACK_PEN );
1529     dc.SetBrush( *wxWHITE_BRUSH );
1530     dc.DrawRectangle( 0,0,width,height );
1531
1532     wxDataViewModel *model = m_owner->GetModel();
1533
1534     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1535     if (!expander)
1536     {
1537         // TODO-RTL: last column for RTL support
1538         expander = GetOwner()->GetColumnAt( 0 );
1539         GetOwner()->SetExpanderColumn(expander);
1540     }
1541
1542
1543     int x = 0;
1544     for (col = 0; col < cols; col++)
1545     {
1546         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1547         wxDataViewRenderer *cell = column->GetRenderer();
1548
1549         if (column->IsHidden())
1550             continue;       // skip it!
1551
1552         width = column->GetWidth();
1553
1554         if (column == expander)
1555             width -= indent;
1556
1557         wxDataViewItem item = GetItemByRow( row );
1558         cell->PrepareForItem(model, item, column->GetModelColumn());
1559
1560         wxRect item_rect(x, 0, width, height);
1561         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1562
1563         // dc.SetClippingRegion( item_rect );
1564         cell->WXCallRender(item_rect, &dc, 0);
1565         // dc.DestroyClippingRegion();
1566
1567         x += width;
1568     }
1569
1570     return bitmap;
1571 }
1572
1573 #endif // wxUSE_DRAG_AND_DROP
1574
1575
1576 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1577 {
1578     wxDataViewModel *model = GetOwner()->GetModel();
1579     wxAutoBufferedPaintDC dc( this );
1580
1581 #ifdef __WXMSW__
1582     dc.SetBrush(GetOwner()->GetBackgroundColour());
1583     dc.SetPen( *wxTRANSPARENT_PEN );
1584     dc.DrawRectangle(GetClientSize());
1585 #endif
1586
1587     // prepare the DC
1588     GetOwner()->PrepareDC( dc );
1589     dc.SetFont( GetFont() );
1590
1591     wxRect update = GetUpdateRegion().GetBox();
1592     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1593
1594     // compute which items needs to be redrawn
1595     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1596     unsigned int item_count =
1597         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1598             (int)(GetRowCount( ) - item_start));
1599     unsigned int item_last = item_start + item_count;
1600     // Get the parent of DataViewCtrl
1601     wxWindow *parent = GetParent()->GetParent();
1602     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1603     cache_event.SetEventObject(GetParent());
1604     cache_event.SetCache(item_start, item_last - 1);
1605     parent->ProcessWindowEvent(cache_event);
1606
1607     // compute which columns needs to be redrawn
1608     unsigned int cols = GetOwner()->GetColumnCount();
1609     if ( !cols )
1610     {
1611         // we assume that we have at least one column below and painting an
1612         // empty control is unnecessary anyhow
1613         return;
1614     }
1615
1616     unsigned int col_start = 0;
1617     unsigned int x_start;
1618     for (x_start = 0; col_start < cols; col_start++)
1619     {
1620         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1621         if (col->IsHidden())
1622             continue;      // skip it!
1623
1624         unsigned int w = col->GetWidth();
1625         if (x_start+w >= (unsigned int)update.x)
1626             break;
1627
1628         x_start += w;
1629     }
1630
1631     unsigned int col_last = col_start;
1632     unsigned int x_last = x_start;
1633     for (; col_last < cols; col_last++)
1634     {
1635         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1636         if (col->IsHidden())
1637             continue;      // skip it!
1638
1639         if (x_last > (unsigned int)update.GetRight())
1640             break;
1641
1642         x_last += col->GetWidth();
1643     }
1644
1645     // Draw horizontal rules if required
1646     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1647     {
1648         dc.SetPen(m_penRule);
1649         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1650
1651         for (unsigned int i = item_start; i <= item_last; i++)
1652         {
1653             int y = GetLineStart( i );
1654             dc.DrawLine(x_start, y, x_last, y);
1655         }
1656     }
1657
1658     // Draw vertical rules if required
1659     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1660     {
1661         dc.SetPen(m_penRule);
1662         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1663
1664         int x = x_start;
1665         for (unsigned int i = col_start; i < col_last; i++)
1666         {
1667             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1668             if (col->IsHidden())
1669                 continue;       // skip it
1670
1671             dc.DrawLine(x, GetLineStart( item_start ),
1672                         x, GetLineStart( item_last ) );
1673
1674             x += col->GetWidth();
1675         }
1676
1677         // Draw last vertical rule
1678         dc.DrawLine(x, GetLineStart( item_start ),
1679                     x, GetLineStart( item_last ) );
1680     }
1681
1682     // redraw the background for the items which are selected/current
1683     for (unsigned int item = item_start; item < item_last; item++)
1684     {
1685         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1686         if (selected || item == m_currentRow)
1687         {
1688             int flags = selected ? (int)wxCONTROL_SELECTED : 0;
1689             if (item == m_currentRow)
1690                 flags |= wxCONTROL_CURRENT;
1691             if (m_hasFocus)
1692                 flags |= wxCONTROL_FOCUSED;
1693
1694             wxRect rect( x_start, GetLineStart( item ),
1695                          x_last - x_start, GetLineHeight( item ) );
1696             wxRendererNative::Get().DrawItemSelectionRect
1697                                 (
1698                                     this,
1699                                     dc,
1700                                     rect,
1701                                     flags
1702                                 );
1703         }
1704     }
1705
1706 #if wxUSE_DRAG_AND_DROP
1707     if (m_dropHint)
1708     {
1709         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1710                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1711         dc.SetPen( *wxBLACK_PEN );
1712         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1713         dc.DrawRectangle( rect );
1714     }
1715 #endif // wxUSE_DRAG_AND_DROP
1716
1717     wxDataViewColumn *expander = GetOwner()->GetExpanderColumn();
1718     if (!expander)
1719     {
1720         // TODO-RTL: last column for RTL support
1721         expander = GetOwner()->GetColumnAt( 0 );
1722         GetOwner()->SetExpanderColumn(expander);
1723     }
1724
1725     // redraw all cells for all rows which must be repainted and all columns
1726     wxRect cell_rect;
1727     cell_rect.x = x_start;
1728     for (unsigned int i = col_start; i < col_last; i++)
1729     {
1730         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1731         wxDataViewRenderer *cell = col->GetRenderer();
1732         cell_rect.width = col->GetWidth();
1733
1734         if ( col->IsHidden() || cell_rect.width <= 0 )
1735             continue;       // skip it!
1736
1737         for (unsigned int item = item_start; item < item_last; item++)
1738         {
1739             // get the cell value and set it into the renderer
1740             wxDataViewTreeNode *node = NULL;
1741             wxDataViewItem dataitem;
1742
1743             if (!IsVirtualList())
1744             {
1745                 node = GetTreeNodeByRow(item);
1746                 if( node == NULL )
1747                     continue;
1748
1749                 dataitem = node->GetItem();
1750
1751                 if ((i > 0) && model->IsContainer(dataitem) &&
1752                     !model->HasContainerColumns(dataitem))
1753                     continue;
1754             }
1755             else
1756             {
1757                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1758             }
1759
1760             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1761
1762             // update cell_rect
1763             cell_rect.y = GetLineStart( item );
1764             cell_rect.height = GetLineHeight( item );
1765
1766             // deal with the expander
1767             int indent = 0;
1768             if ((!IsList()) && (col == expander))
1769             {
1770                 // Calculate the indent first
1771                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1772
1773                 // we reserve m_lineHeight of horizontal space for the expander
1774                 // but leave EXPANDER_MARGIN around the expander itself
1775                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1776
1777                 indent += m_lineHeight;
1778
1779                 // draw expander if needed and visible
1780                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1781                 {
1782                     dc.SetPen( m_penExpander );
1783                     dc.SetBrush( wxNullBrush );
1784
1785                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1786                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1787                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1788
1789                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1790
1791                     int flag = 0;
1792                     if ( m_underMouse == node )
1793                         flag |= wxCONTROL_CURRENT;
1794                     if ( node->IsOpen() )
1795                         flag |= wxCONTROL_EXPANDED;
1796
1797                     // ensure that we don't overflow the cell (which might
1798                     // happen if the column is very narrow)
1799                     wxDCClipper clip(dc, cell_rect);
1800
1801                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1802                 }
1803
1804                 // force the expander column to left-center align
1805                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1806             }
1807             if (node && !node->HasChildren())
1808             {
1809                 // Yes, if the node does not have any child, it must be a leaf which
1810                 // mean that it is a temporarily created by GetTreeNodeByRow
1811                 wxDELETE(node);
1812             }
1813
1814             wxRect item_rect = cell_rect;
1815             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1816
1817             // account for the tree indent (harmless if we're not indented)
1818             item_rect.x += indent;
1819             item_rect.width -= indent;
1820
1821             if ( item_rect.width <= 0 )
1822                 continue;
1823
1824             int state = 0;
1825             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1826                 state |= wxDATAVIEW_CELL_SELECTED;
1827
1828             // TODO: it would be much more efficient to create a clipping
1829             //       region for the entire column being rendered (in the OnPaint
1830             //       of wxDataViewMainWindow) instead of a single clip region for
1831             //       each cell. However it would mean that each renderer should
1832             //       respect the given wxRect's top & bottom coords, eventually
1833             //       violating only the left & right coords - however the user can
1834             //       make its own renderer and thus we cannot be sure of that.
1835             wxDCClipper clip(dc, item_rect);
1836
1837             cell->WXCallRender(item_rect, &dc, state);
1838         }
1839
1840         cell_rect.x += cell_rect.width;
1841     }
1842 }
1843
1844 void wxDataViewMainWindow::OnRenameTimer()
1845 {
1846     // We have to call this here because changes may just have
1847     // been made and no screen update taken place.
1848     if ( m_dirty )
1849     {
1850         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1851         //       (needs to be tested!)
1852         wxSafeYield();
1853     }
1854
1855     wxDataViewItem item = GetItemByRow( m_currentRow );
1856
1857     wxRect labelRect = GetItemRect(item, m_currentCol);
1858
1859     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1860 }
1861
1862 //-----------------------------------------------------------------------------
1863 // Helper class for do operation on the tree node
1864 //-----------------------------------------------------------------------------
1865 class DoJob
1866 {
1867 public:
1868     DoJob() { }
1869     virtual ~DoJob() { }
1870
1871     // The return value control how the tree-walker tranverse the tree
1872     // 0: Job done, stop tranverse and return
1873     // 1: Ignore the current node's subtree and continue
1874     // 2: Job not done, continue
1875     enum  { OK = 0 , IGR = 1, CONT = 2 };
1876     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
1877     virtual int operator() ( void * n ) = 0;
1878 };
1879
1880 bool Walker( wxDataViewTreeNode * node, DoJob & func )
1881 {
1882     if( node==NULL )
1883         return false;
1884
1885     switch( func( node ) )
1886     {
1887         case DoJob::OK :
1888             return true;
1889         case DoJob::IGR:
1890             return false;
1891         case DoJob::CONT:
1892         default:
1893             ;
1894     }
1895
1896     const wxDataViewTreeNodes& nodes = node->GetNodes();
1897     const wxDataViewTreeLeaves& leaves = node->GetChildren();
1898
1899     int len_nodes = nodes.GetCount();
1900     int len = leaves.GetCount();
1901     int i = 0, nodes_i = 0;
1902
1903     for(; i < len; i ++ )
1904     {
1905         void * n = leaves[i];
1906         if( nodes_i < len_nodes && n == nodes[nodes_i]->GetItem().GetID() )
1907         {
1908             wxDataViewTreeNode * nd = nodes[nodes_i];
1909             nodes_i++;
1910
1911             if( Walker( nd , func ) )
1912                 return true;
1913
1914         }
1915         else
1916             switch( func( n ) )
1917             {
1918                 case DoJob::OK :
1919                     return true;
1920                 case DoJob::IGR:
1921                     continue;
1922                 case DoJob::CONT:
1923                 default:
1924                 ;
1925             }
1926     }
1927     return false;
1928 }
1929
1930 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
1931 {
1932     GetOwner()->InvalidateColBestWidths();
1933
1934     if (IsVirtualList())
1935     {
1936         wxDataViewVirtualListModel *list_model =
1937             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1938         m_count = list_model->GetCount();
1939         UpdateDisplay();
1940         return true;
1941     }
1942
1943     SortPrepare();
1944
1945     wxDataViewTreeNode * node;
1946     node = FindNode(parent);
1947
1948     if( node == NULL )
1949         return false;
1950
1951     node->SetHasChildren( true );
1952
1953     if( g_model->IsContainer( item ) )
1954     {
1955         wxDataViewTreeNode * newnode = new wxDataViewTreeNode( node );
1956         newnode->SetItem(item);
1957         newnode->SetHasChildren( true );
1958         node->AddNode( newnode);
1959     }
1960     else
1961         node->AddLeaf( item.GetID() );
1962
1963     node->ChangeSubTreeCount(1);
1964
1965     m_count = -1;
1966     UpdateDisplay();
1967
1968     return true;
1969 }
1970
1971 static void DestroyTreeHelper( wxDataViewTreeNode * node);
1972
1973 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
1974                                        const wxDataViewItem& item)
1975 {
1976     GetOwner()->InvalidateColBestWidths();
1977
1978     if (IsVirtualList())
1979     {
1980         wxDataViewVirtualListModel *list_model =
1981             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
1982         m_count = list_model->GetCount();
1983
1984         if( m_currentRow > GetRowCount() )
1985             m_currentRow = m_count - 1;
1986
1987         // TODO: why empty the entire selection?
1988         m_selection.Empty();
1989
1990         UpdateDisplay();
1991
1992         return true;
1993     }
1994
1995     wxDataViewTreeNode * node = FindNode(parent);
1996
1997     // Notice that it is possible that the item being deleted is not in the
1998     // tree at all, for example we could be deleting a never shown (because
1999     // collapsed) item in a tree model. So it's not an error if we don't know
2000     // about this item, just return without doing anything then.
2001     if ( !node || node->GetChildren().Index(item.GetID()) == wxNOT_FOUND )
2002         return false;
2003
2004     int sub = -1;
2005     node->GetChildren().Remove( item.GetID() );
2006     // Manipolate selection
2007     if( m_selection.GetCount() > 1 )
2008     {
2009         m_selection.Empty();
2010     }
2011     bool isContainer = false;
2012     wxDataViewTreeNodes nds = node->GetNodes();
2013     for (size_t i = 0; i < nds.GetCount(); i ++)
2014     {
2015         if (nds[i]->GetItem() == item)
2016         {
2017             isContainer = true;
2018             break;
2019         }
2020     }
2021     if( isContainer )
2022     {
2023         wxDataViewTreeNode * n = NULL;
2024         wxDataViewTreeNodes nodes = node->GetNodes();
2025         int len = nodes.GetCount();
2026         for( int i = 0; i < len; i ++)
2027         {
2028             if( nodes[i]->GetItem() == item )
2029             {
2030                 n = nodes[i];
2031                 break;
2032             }
2033         }
2034
2035         wxCHECK_MSG( n != NULL, false, "item not found" );
2036
2037         node->GetNodes().Remove( n );
2038         sub -= n->GetSubTreeCount();
2039         ::DestroyTreeHelper(n);
2040     }
2041     // Make the row number invalid and get a new valid one when user call GetRowCount
2042     m_count = -1;
2043     node->ChangeSubTreeCount(sub);
2044
2045     // Change the current row to the last row if the current exceed the max row number
2046     if( m_currentRow > GetRowCount() )
2047         m_currentRow = m_count - 1;
2048
2049     UpdateDisplay();
2050
2051     return true;
2052 }
2053
2054 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2055 {
2056     GetOwner()->InvalidateColBestWidths();
2057
2058     SortPrepare();
2059     g_model->Resort();
2060
2061     // Send event
2062     wxWindow *parent = GetParent();
2063     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2064     le.SetEventObject(parent);
2065     le.SetModel(GetOwner()->GetModel());
2066     le.SetItem(item);
2067     parent->GetEventHandler()->ProcessEvent(le);
2068
2069     return true;
2070 }
2071
2072 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )
2073 {
2074     GetOwner()->InvalidateColBestWidth(col);
2075
2076     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2077 /*#define MAX_VIRTUAL_WIDTH       100000
2078
2079     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2080     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2081     Refresh( true, &rect );
2082
2083     return true;
2084 */
2085     SortPrepare();
2086     g_model->Resort();
2087
2088     // Send event
2089     wxWindow *parent = GetParent();
2090     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2091     le.SetEventObject(parent);
2092     le.SetModel(GetOwner()->GetModel());
2093     le.SetItem(item);
2094     le.SetColumn(col);
2095     le.SetDataViewColumn(GetOwner()->GetColumn(col));
2096     parent->GetEventHandler()->ProcessEvent(le);
2097
2098     return true;
2099 }
2100
2101 bool wxDataViewMainWindow::Cleared()
2102 {
2103     GetOwner()->InvalidateColBestWidths();
2104
2105     DestroyTree();
2106     m_selection.Clear();
2107
2108     SortPrepare();
2109     BuildTree( GetOwner()->GetModel() );
2110
2111     UpdateDisplay();
2112
2113     return true;
2114 }
2115
2116 void wxDataViewMainWindow::UpdateDisplay()
2117 {
2118     m_dirty = true;
2119     m_underMouse = NULL;
2120 }
2121
2122 void wxDataViewMainWindow::OnInternalIdle()
2123 {
2124     wxWindow::OnInternalIdle();
2125
2126     if (m_dirty)
2127     {
2128         RecalculateDisplay();
2129         m_dirty = false;
2130     }
2131 }
2132
2133 void wxDataViewMainWindow::RecalculateDisplay()
2134 {
2135     wxDataViewModel *model = GetOwner()->GetModel();
2136     if (!model)
2137     {
2138         Refresh();
2139         return;
2140     }
2141
2142     int width = GetEndOfLastCol();
2143     int height = GetLineStart( GetRowCount() );
2144
2145     SetVirtualSize( width, height );
2146     GetOwner()->SetScrollRate( 10, m_lineHeight );
2147
2148     Refresh();
2149 }
2150
2151 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2152 {
2153     wxWindow::ScrollWindow( dx, dy, rect );
2154
2155     if (GetOwner()->m_headerArea)
2156         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2157 }
2158
2159 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2160 {
2161     int x, y;
2162     m_owner->GetScrollPixelsPerUnit( &x, &y );
2163     int sy = GetLineStart( rows )/y;
2164     int sx = 0;
2165     if( column != -1 )
2166     {
2167         wxRect rect = GetClientRect();
2168         int colnum = 0;
2169         int x_start, w = 0;
2170         int xx, yy, xe;
2171         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2172         for (x_start = 0; colnum < column; colnum++)
2173         {
2174             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2175             if (col->IsHidden())
2176                 continue;      // skip it!
2177
2178             w = col->GetWidth();
2179             x_start += w;
2180         }
2181
2182         int x_end = x_start + w;
2183         xe = xx + rect.width;
2184         if( x_end > xe )
2185         {
2186             sx = ( xx + x_end - xe )/x;
2187         }
2188         if( x_start < xx )
2189         {
2190             sx = x_start/x;
2191         }
2192     }
2193     m_owner->Scroll( sx, sy );
2194 }
2195
2196 int wxDataViewMainWindow::GetCountPerPage() const
2197 {
2198     wxSize size = GetClientSize();
2199     return size.y / m_lineHeight;
2200 }
2201
2202 int wxDataViewMainWindow::GetEndOfLastCol() const
2203 {
2204     int width = 0;
2205     unsigned int i;
2206     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2207     {
2208         const wxDataViewColumn *c =
2209             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2210
2211         if (!c->IsHidden())
2212             width += c->GetWidth();
2213     }
2214     return width;
2215 }
2216
2217 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2218 {
2219     int x = 0;
2220     int y = 0;
2221     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2222
2223     return GetLineAt( y );
2224 }
2225
2226 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2227 {
2228     wxSize client_size = GetClientSize();
2229     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2230                                     &client_size.x, &client_size.y );
2231
2232     // we should deal with the pixel here
2233     unsigned int row = GetLineAt(client_size.y) - 1;
2234
2235     return wxMin( GetRowCount()-1, row );
2236 }
2237
2238 unsigned int wxDataViewMainWindow::GetRowCount()
2239 {
2240     if ( m_count == -1 )
2241     {
2242         m_count = RecalculateCount();
2243         UpdateDisplay();
2244     }
2245     return m_count;
2246 }
2247
2248 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2249 {
2250     m_currentRow = row;
2251
2252     // send event
2253 }
2254
2255 void wxDataViewMainWindow::SelectAllRows( bool on )
2256 {
2257     if (IsEmpty())
2258         return;
2259
2260     if (on)
2261     {
2262         m_selection.Clear();
2263         for (unsigned int i = 0; i < GetRowCount(); i++)
2264             m_selection.Add( i );
2265         Refresh();
2266     }
2267     else
2268     {
2269         unsigned int first_visible = GetFirstVisibleRow();
2270         unsigned int last_visible = GetLastVisibleRow();
2271         unsigned int i;
2272         for (i = 0; i < m_selection.GetCount(); i++)
2273         {
2274             unsigned int row = m_selection[i];
2275             if ((row >= first_visible) && (row <= last_visible))
2276                 RefreshRow( row );
2277         }
2278         m_selection.Clear();
2279     }
2280 }
2281
2282 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2283 {
2284     if (m_selection.Index( row ) == wxNOT_FOUND)
2285     {
2286         if (on)
2287         {
2288             m_selection.Add( row );
2289             RefreshRow( row );
2290         }
2291     }
2292     else
2293     {
2294         if (!on)
2295         {
2296             m_selection.Remove( row );
2297             RefreshRow( row );
2298         }
2299     }
2300 }
2301
2302 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2303 {
2304     if (from > to)
2305     {
2306         unsigned int tmp = from;
2307         from = to;
2308         to = tmp;
2309     }
2310
2311     unsigned int i;
2312     for (i = from; i <= to; i++)
2313     {
2314         if (m_selection.Index( i ) == wxNOT_FOUND)
2315         {
2316             if (on)
2317                 m_selection.Add( i );
2318         }
2319         else
2320         {
2321             if (!on)
2322                 m_selection.Remove( i );
2323         }
2324     }
2325     RefreshRows( from, to );
2326 }
2327
2328 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2329 {
2330     for (size_t i=0; i < aSelections.GetCount(); i++)
2331     {
2332         int n = aSelections[i];
2333
2334         m_selection.Add( n );
2335         RefreshRow( n );
2336     }
2337 }
2338
2339 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2340 {
2341     if (m_selection.Index( row ) == wxNOT_FOUND)
2342         m_selection.Add( row );
2343     else
2344         m_selection.Remove( row );
2345     RefreshRow( row );
2346 }
2347
2348 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2349 {
2350     return (m_selection.Index( row ) != wxNOT_FOUND);
2351 }
2352
2353 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2354 {
2355     wxWindow *parent = GetParent();
2356     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2357
2358     le.SetEventObject(parent);
2359     le.SetModel(GetOwner()->GetModel());
2360     le.SetItem( item );
2361
2362     parent->GetEventHandler()->ProcessEvent(le);
2363 }
2364
2365 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2366 {
2367     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2368     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2369
2370     wxSize client_size = GetClientSize();
2371     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2372     wxRect intersect_rect = client_rect.Intersect( rect );
2373     if (intersect_rect.width > 0)
2374         Refresh( true, &intersect_rect );
2375 }
2376
2377 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2378 {
2379     if (from > to)
2380     {
2381         unsigned int tmp = to;
2382         to = from;
2383         from = tmp;
2384     }
2385
2386     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2387     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2388
2389     wxSize client_size = GetClientSize();
2390     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2391     wxRect intersect_rect = client_rect.Intersect( rect );
2392     if (intersect_rect.width > 0)
2393         Refresh( true, &intersect_rect );
2394 }
2395
2396 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2397 {
2398     wxSize client_size = GetClientSize();
2399     int start = GetLineStart( firstRow );
2400     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2401     if (start > client_size.y) return;
2402
2403     wxRect rect( 0, start, client_size.x, client_size.y - start );
2404
2405     Refresh( true, &rect );
2406 }
2407
2408 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
2409 {
2410     wxCHECK_RET( newCurrent < GetRowCount(),
2411                 wxT("invalid item index in OnArrowChar()") );
2412
2413     // if there is no selection, we cannot move it anywhere
2414     if (!HasCurrentRow())
2415         return;
2416
2417     unsigned int oldCurrent = m_currentRow;
2418
2419     // in single selection we just ignore Shift as we can't select several
2420     // items anyhow
2421     if ( event.ShiftDown() && !IsSingleSel() )
2422     {
2423         RefreshRow( oldCurrent );
2424
2425         ChangeCurrentRow( newCurrent );
2426
2427         // select all the items between the old and the new one
2428         if ( oldCurrent > newCurrent )
2429         {
2430             newCurrent = oldCurrent;
2431             oldCurrent = m_currentRow;
2432         }
2433
2434         SelectRows( oldCurrent, newCurrent, true );
2435         if (oldCurrent!=newCurrent)
2436             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
2437     }
2438     else // !shift
2439     {
2440         RefreshRow( oldCurrent );
2441
2442         // all previously selected items are unselected unless ctrl is held
2443         if ( !event.ControlDown() )
2444             SelectAllRows(false);
2445
2446         ChangeCurrentRow( newCurrent );
2447
2448         if ( !event.ControlDown() )
2449         {
2450             SelectRow( m_currentRow, true );
2451             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
2452         }
2453         else
2454             RefreshRow( m_currentRow );
2455     }
2456
2457     GetOwner()->EnsureVisible( m_currentRow, -1 );
2458 }
2459
2460 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2461 {
2462     wxRect rect;
2463     rect.x = 0;
2464     rect.y = GetLineStart( row );
2465     rect.width = GetEndOfLastCol();
2466     rect.height = GetLineHeight( row );
2467
2468     return rect;
2469 }
2470
2471 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2472 {
2473     const wxDataViewModel *model = GetOwner()->GetModel();
2474
2475     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2476     {
2477         // TODO make more efficient
2478
2479         int start = 0;
2480
2481         unsigned int r;
2482         for (r = 0; r < row; r++)
2483         {
2484             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2485             if (!node) return start;
2486
2487             wxDataViewItem item = node->GetItem();
2488
2489             if (node && !node->HasChildren())
2490             {
2491                 // Yes, if the node does not have any child, it must be a leaf which
2492                 // mean that it is a temporarily created by GetTreeNodeByRow
2493                 wxDELETE(node);
2494             }
2495
2496             unsigned int cols = GetOwner()->GetColumnCount();
2497             unsigned int col;
2498             int height = m_lineHeight;
2499             for (col = 0; col < cols; col++)
2500             {
2501                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2502                 if (column->IsHidden())
2503                     continue;      // skip it!
2504
2505                 if ((col != 0) &&
2506                     model->IsContainer(item) &&
2507                     !model->HasContainerColumns(item))
2508                     continue;      // skip it!
2509
2510                 wxDataViewRenderer *renderer =
2511                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2512                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2513
2514                 height = wxMax( height, renderer->GetSize().y );
2515             }
2516
2517             start += height;
2518         }
2519
2520         return start;
2521     }
2522     else
2523     {
2524         return row * m_lineHeight;
2525     }
2526 }
2527
2528 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2529 {
2530     const wxDataViewModel *model = GetOwner()->GetModel();
2531
2532     // check for the easy case first
2533     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2534         return y / m_lineHeight;
2535
2536     // TODO make more efficient
2537     unsigned int row = 0;
2538     unsigned int yy = 0;
2539     for (;;)
2540     {
2541         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2542         if (!node)
2543         {
2544             // not really correct...
2545             return row + ((y-yy) / m_lineHeight);
2546         }
2547
2548         wxDataViewItem item = node->GetItem();
2549
2550         if (node && !node->HasChildren())
2551         {
2552             // Yes, if the node does not have any child, it must be a leaf which
2553             // mean that it is a temporarily created by GetTreeNodeByRow
2554             wxDELETE(node);
2555         }
2556
2557         unsigned int cols = GetOwner()->GetColumnCount();
2558         unsigned int col;
2559         int height = m_lineHeight;
2560         for (col = 0; col < cols; col++)
2561         {
2562             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2563             if (column->IsHidden())
2564                 continue;      // skip it!
2565
2566             if ((col != 0) &&
2567                 model->IsContainer(item) &&
2568                 !model->HasContainerColumns(item))
2569                 continue;      // skip it!
2570
2571             wxDataViewRenderer *renderer =
2572                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2573             renderer->PrepareForItem(model, item, column->GetModelColumn());
2574
2575             height = wxMax( height, renderer->GetSize().y );
2576         }
2577
2578         yy += height;
2579         if (y < yy)
2580             return row;
2581
2582         row++;
2583     }
2584 }
2585
2586 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2587 {
2588     const wxDataViewModel *model = GetOwner()->GetModel();
2589
2590     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2591     {
2592         wxASSERT( !IsVirtualList() );
2593
2594         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2595         // wxASSERT( node );
2596         if (!node) return m_lineHeight;
2597
2598         wxDataViewItem item = node->GetItem();
2599
2600         if (node && !node->HasChildren())
2601         {
2602                 // Yes, if the node does not have any child, it must be a leaf which
2603                 // mean that it is a temporarily created by GetTreeNodeByRow
2604             wxDELETE(node);
2605         }
2606
2607         int height = m_lineHeight;
2608
2609         unsigned int cols = GetOwner()->GetColumnCount();
2610         unsigned int col;
2611         for (col = 0; col < cols; col++)
2612         {
2613             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2614             if (column->IsHidden())
2615                 continue;      // skip it!
2616
2617             if ((col != 0) &&
2618                 model->IsContainer(item) &&
2619                 !model->HasContainerColumns(item))
2620                 continue;      // skip it!
2621
2622             wxDataViewRenderer *renderer =
2623                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2624             renderer->PrepareForItem(model, item, column->GetModelColumn());
2625
2626             height = wxMax( height, renderer->GetSize().y );
2627         }
2628
2629         return height;
2630     }
2631     else
2632     {
2633         return m_lineHeight;
2634     }
2635 }
2636
2637 class RowToItemJob: public DoJob
2638 {
2639 public:
2640     RowToItemJob( unsigned int row , int current )
2641         { this->row = row; this->current = current; }
2642     virtual ~RowToItemJob() {}
2643
2644     virtual int operator() ( wxDataViewTreeNode * node )
2645     {
2646         current ++;
2647         if( current == static_cast<int>(row))
2648         {
2649             ret = node->GetItem();
2650             return DoJob::OK;
2651         }
2652
2653         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2654         {
2655             current += node->GetSubTreeCount();
2656             return  DoJob::IGR;
2657         }
2658         else
2659         {
2660             // If the current has no child node, we can find the desired item of the row
2661             // number directly.
2662             // This if can speed up finding in some case, and will has a very good effect
2663             // when it comes to list view
2664             if( node->GetNodes().GetCount() == 0)
2665             {
2666                 int index = static_cast<int>(row) - current - 1;
2667                 ret = node->GetChildren().Item( index );
2668                 return DoJob::OK;
2669             }
2670             return DoJob::CONT;
2671         }
2672     }
2673
2674     virtual int operator() ( void * n )
2675     {
2676         current ++;
2677         if( current == static_cast<int>(row))
2678         {
2679             ret = wxDataViewItem( n );
2680             return DoJob::OK;
2681         }
2682         return DoJob::CONT;
2683     }
2684
2685     wxDataViewItem GetResult() const
2686         { return ret; }
2687
2688 private:
2689     unsigned int row;
2690     int current;
2691     wxDataViewItem ret;
2692 };
2693
2694 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2695 {
2696     if (IsVirtualList())
2697     {
2698         return wxDataViewItem( wxUIntToPtr(row+1) );
2699     }
2700     else
2701     {
2702         RowToItemJob job( row, -2 );
2703         Walker( m_root , job );
2704         return job.GetResult();
2705     }
2706 }
2707
2708 class RowToTreeNodeJob: public DoJob
2709 {
2710 public:
2711     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2712     {
2713         this->row = row;
2714         this->current = current;
2715         ret = NULL;
2716         parent = node;
2717     }
2718     virtual ~RowToTreeNodeJob(){ }
2719
2720     virtual int operator() ( wxDataViewTreeNode * node )
2721     {
2722         current ++;
2723         if( current == static_cast<int>(row))
2724         {
2725             ret = node;
2726             return DoJob::OK;
2727         }
2728
2729         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2730         {
2731             current += node->GetSubTreeCount();
2732             return  DoJob::IGR;
2733         }
2734         else
2735         {
2736             parent = node;
2737
2738             // If the current node has no children, we can find the desired item of the
2739             // row number directly.
2740             // This if can speed up finding in some case, and will have a very good
2741             // effect for list views.
2742             if( node->GetNodes().GetCount() == 0)
2743             {
2744                 int index = static_cast<int>(row) - current - 1;
2745                 void * n = node->GetChildren().Item( index );
2746                 ret = new wxDataViewTreeNode( parent );
2747                 ret->SetItem( wxDataViewItem( n ));
2748                 ret->SetHasChildren(false);
2749                 return DoJob::OK;
2750             }
2751             return DoJob::CONT;
2752         }
2753     }
2754
2755     virtual int operator() ( void * n )
2756     {
2757         current ++;
2758         if( current == static_cast<int>(row))
2759         {
2760             ret = new wxDataViewTreeNode( parent );
2761             ret->SetItem( wxDataViewItem( n ));
2762             ret->SetHasChildren(false);
2763             return DoJob::OK;
2764         }
2765
2766         return DoJob::CONT;
2767     }
2768
2769     wxDataViewTreeNode * GetResult() const
2770         { return ret; }
2771
2772 private:
2773     unsigned int row;
2774     int current;
2775     wxDataViewTreeNode * ret;
2776     wxDataViewTreeNode * parent;
2777 };
2778
2779 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2780 {
2781     wxASSERT( !IsVirtualList() );
2782
2783     RowToTreeNodeJob job( row , -2, m_root );
2784     Walker( m_root , job );
2785     return job.GetResult();
2786 }
2787
2788 wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type,
2789                                                          const wxDataViewItem & item )
2790 {
2791     wxWindow *parent = GetParent();
2792     wxDataViewEvent le(type, parent->GetId());
2793
2794     le.SetEventObject(parent);
2795     le.SetModel(GetOwner()->GetModel());
2796     le.SetItem( item );
2797
2798     parent->GetEventHandler()->ProcessEvent(le);
2799     return le;
2800 }
2801
2802 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2803 {
2804     if (IsList())
2805         return false;
2806
2807     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2808     if (!node)
2809         return false;
2810
2811     if (!node->HasChildren())
2812     {
2813         delete node;
2814         return false;
2815     }
2816
2817     return node->IsOpen();
2818 }
2819
2820 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2821 {
2822     if (IsList())
2823         return false;
2824
2825     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2826     if (!node)
2827         return false;
2828
2829     if (!node->HasChildren())
2830     {
2831         delete node;
2832         return false;
2833     }
2834
2835     return true;
2836 }
2837
2838 void wxDataViewMainWindow::Expand( unsigned int row )
2839 {
2840     if (IsList())
2841         return;
2842
2843     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2844     if (!node)
2845         return;
2846
2847     if (!node->HasChildren())
2848     {
2849         delete node;
2850         return;
2851     }
2852
2853             if (!node->IsOpen())
2854             {
2855                 wxDataViewEvent e =
2856                     SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem());
2857
2858                 // Check if the user prevent expanding
2859                 if( e.GetSkipped() )
2860                     return;
2861
2862                 node->ToggleOpen();
2863
2864                 // build the children of current node
2865                 if( node->GetChildrenNumber() == 0 )
2866                 {
2867                     SortPrepare();
2868                     ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
2869                 }
2870
2871                 // By expanding the node all row indices that are currently in the selection list
2872                 // and are greater than our node have become invalid. So we have to correct that now.
2873                 const unsigned rowAdjustment = node->GetSubTreeCount();
2874                 for(unsigned i=0; i<m_selection.size(); ++i)
2875                 {
2876                     const unsigned testRow = m_selection[i];
2877                     // all rows above us are not affected, so skip them
2878                     if(testRow <= row)
2879                         continue;
2880
2881                     m_selection[i] += rowAdjustment;
2882                 }
2883
2884                 if(m_currentRow > row)
2885                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2886
2887                 m_count = -1;
2888                 UpdateDisplay();
2889                 // Send the expanded event
2890                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2891             }
2892 }
2893
2894 void wxDataViewMainWindow::Collapse(unsigned int row)
2895 {
2896     if (IsList())
2897         return;
2898
2899     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2900     if (!node)
2901         return;
2902
2903     if (!node->HasChildren())
2904     {
2905         delete node;
2906         return;
2907     }
2908
2909         if (node->IsOpen())
2910         {
2911             wxDataViewEvent e =
2912                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
2913             if( e.GetSkipped() )
2914                 return;
2915
2916             // Find out if there are selected items below the current node.
2917             bool selectCollapsingRow = false;
2918             const unsigned rowAdjustment = node->GetSubTreeCount();
2919             unsigned maxRowToBeTested = row + rowAdjustment;
2920             for(unsigned i=0; i<m_selection.size(); ++i)
2921             {
2922                 const unsigned testRow = m_selection[i];
2923                 if(testRow > row && testRow <= maxRowToBeTested)
2924                 {
2925                     selectCollapsingRow = true;
2926                     // get out as soon as we have found a node that is selected
2927                     break;
2928                 }
2929             }
2930
2931             node->ToggleOpen();
2932
2933             // If the node to be closed has selected items the user won't see those any longer.
2934             // We select the collapsing node in this case.
2935             if(selectCollapsingRow)
2936             {
2937                 SelectAllRows(false);
2938                 ChangeCurrentRow(row);
2939                 SelectRow(row, true);
2940                 SendSelectionChangedEvent(GetItemByRow(row));
2941             }
2942             else
2943             {
2944                 // if there were no selected items below our node we still need to "fix" the
2945                 // selection list to adjust for the changing of the row indices.
2946                 // We actually do the opposite of what we are doing in Expand().
2947                 for(unsigned i=0; i<m_selection.size(); ++i)
2948                 {
2949                     const unsigned testRow = m_selection[i];
2950                     // all rows above us are not affected, so skip them
2951                     if(testRow <= row)
2952                         continue;
2953
2954                     m_selection[i] -= rowAdjustment;
2955                 }
2956
2957                 // if the "current row" is being collapsed away we change it to the current row ;-)
2958                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
2959                     ChangeCurrentRow(row);
2960                 else if(m_currentRow > row)
2961                     ChangeCurrentRow(m_currentRow - rowAdjustment);
2962             }
2963
2964             m_count = -1;
2965             UpdateDisplay();
2966             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
2967         }
2968 }
2969
2970 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
2971 {
2972     const wxDataViewModel * model = GetOwner()->GetModel();
2973     if( model == NULL )
2974         return NULL;
2975
2976     if (!item.IsOk())
2977         return m_root;
2978
2979     // Compose the parent-chain for the item we are looking for
2980     wxVector<wxDataViewItem> parentChain;
2981     wxDataViewItem it( item );
2982     while( it.IsOk() )
2983     {
2984         parentChain.push_back(it);
2985         it = model->GetParent(it);
2986     }
2987
2988     // Find the item along the parent-chain.
2989     // This algorithm is designed to speed up the node-finding method
2990     wxDataViewTreeNode* node = m_root;
2991     for( unsigned iter = parentChain.size()-1; iter>=0; --iter )
2992     {
2993         if( node->HasChildren() )
2994         {
2995             if( node->GetChildrenNumber() == 0 )
2996             {
2997                 SortPrepare();
2998                 ::BuildTreeHelper(model, node->GetItem(), node);
2999             }
3000
3001             const wxDataViewTreeNodes& nodes = node->GetNodes();
3002             bool found = false;
3003
3004             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3005             {
3006                 wxDataViewTreeNode* currentNode = nodes[i];
3007                 if (currentNode->GetItem() == parentChain[iter])
3008                 {
3009                     if (currentNode->GetItem() == item)
3010                         return currentNode;
3011
3012                     node = currentNode;
3013                     found = true;
3014                     break;
3015                 }
3016             }
3017             if (!found)
3018                 return NULL;
3019         }
3020         else
3021             return NULL;
3022     }
3023     return NULL;
3024 }
3025
3026 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3027                                     wxDataViewColumn* &column )
3028 {
3029     wxDataViewColumn *col = NULL;
3030     unsigned int cols = GetOwner()->GetColumnCount();
3031     unsigned int colnum = 0;
3032     int x, y;
3033     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3034     for (unsigned x_start = 0; colnum < cols; colnum++)
3035     {
3036         col = GetOwner()->GetColumnAt(colnum);
3037         if (col->IsHidden())
3038             continue;      // skip it!
3039
3040         unsigned int w = col->GetWidth();
3041         if (x_start+w >= (unsigned int)x)
3042             break;
3043
3044         x_start += w;
3045     }
3046
3047     column = col;
3048     item = GetItemByRow( GetLineAt( y ) );
3049 }
3050
3051 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3052                                           const wxDataViewColumn* column )
3053 {
3054     int xpos = 0;
3055     int width = 0;
3056
3057     unsigned int cols = GetOwner()->GetColumnCount();
3058     // If column is null the loop will compute the combined width of all columns.
3059     // Otherwise, it will compute the x position of the column we are looking for.
3060     for (unsigned int i = 0; i < cols; i++)
3061     {
3062         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3063
3064         if (col == column)
3065             break;
3066
3067         if (col->IsHidden())
3068             continue;      // skip it!
3069
3070         xpos += col->GetWidth();
3071         width += col->GetWidth();
3072     }
3073
3074     if(column != 0)
3075     {
3076         // If we have a column, we need can get its width directly.
3077         if(column->IsHidden())
3078             width = 0;
3079         else
3080             width = column->GetWidth();
3081
3082     }
3083     else
3084     {
3085         // If we have no column, we reset the x position back to zero.
3086         xpos = 0;
3087     }
3088
3089     // we have to take an expander column into account and compute its indentation
3090     // to get the correct x position where the actual text is
3091     int indent = 0;
3092     int row = GetRowByItem(item);
3093     if (!IsList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )
3094     {
3095         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3096         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3097         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3098
3099         if(!node->HasChildren())
3100             delete node;
3101     }
3102
3103     wxRect itemRect( xpos + indent,
3104                      GetLineStart( row ),
3105                      width - indent,
3106                      GetLineHeight( row ) );
3107
3108     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3109                                       &itemRect.x, &itemRect.y );
3110
3111     return itemRect;
3112 }
3113
3114 int wxDataViewMainWindow::RecalculateCount()
3115 {
3116     if (IsVirtualList())
3117     {
3118         wxDataViewVirtualListModel *list_model =
3119             (wxDataViewVirtualListModel*) GetOwner()->GetModel();
3120
3121         return list_model->GetCount();
3122     }
3123     else
3124     {
3125         return m_root->GetSubTreeCount();
3126     }
3127 }
3128
3129 class ItemToRowJob : public DoJob
3130 {
3131 public:
3132     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3133         : m_iter(iter),
3134         item(item_)
3135     {
3136         ret = -1;
3137     }
3138
3139     // Maybe binary search will help to speed up this process
3140     virtual int operator() ( wxDataViewTreeNode * node)
3141     {
3142         ret ++;
3143         if( node->GetItem() == item )
3144         {
3145             return DoJob::OK;
3146         }
3147
3148         if( node->GetItem() == *m_iter )
3149         {
3150             m_iter++;
3151             return DoJob::CONT;
3152         }
3153         else
3154         {
3155             ret += node->GetSubTreeCount();
3156             return DoJob::IGR;
3157         }
3158
3159     }
3160
3161     virtual int operator() ( void * n )
3162     {
3163         ret ++;
3164         if( n == item.GetID() )
3165             return DoJob::OK;
3166         return DoJob::CONT;
3167     }
3168
3169     // the row number is begin from zero
3170     int GetResult() const
3171         { return ret -1; }
3172
3173 private:
3174     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3175     wxDataViewItem item;
3176     int ret;
3177
3178 };
3179
3180 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3181 {
3182     const wxDataViewModel * model = GetOwner()->GetModel();
3183     if( model == NULL )
3184         return -1;
3185
3186     if (IsVirtualList())
3187     {
3188         return wxPtrToUInt( item.GetID() ) -1;
3189     }
3190     else
3191     {
3192         if( !item.IsOk() )
3193             return -1;
3194
3195         // Compose the parent-chain of the item we are looking for
3196         wxVector<wxDataViewItem> parentChain;
3197         wxDataViewItem it( item );
3198         while( it.IsOk() )
3199         {
3200             parentChain.push_back(it);
3201             it = model->GetParent(it);
3202         }
3203
3204         // add an 'invalid' item to represent our 'invisible' root node
3205         parentChain.push_back(wxDataViewItem());
3206
3207         // the parent chain was created by adding the deepest parent first.
3208         // so if we want to start at the root node, we have to iterate backwards through the vector
3209         ItemToRowJob job( item, parentChain.rbegin() );
3210         Walker( m_root, job );
3211         return job.GetResult();
3212     }
3213 }
3214
3215 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3216                              wxDataViewTreeNode * node)
3217 {
3218     if( !model->IsContainer( item ) )
3219         return;
3220
3221     wxDataViewItemArray children;
3222     unsigned int num = model->GetChildren( item, children);
3223
3224     unsigned int index = 0;
3225     while( index < num )
3226     {
3227         if( model->IsContainer( children[index] ) )
3228         {
3229             wxDataViewTreeNode * n = new wxDataViewTreeNode( node );
3230             n->SetItem(children[index]);
3231             n->SetHasChildren( true );
3232             node->AddNode( n );
3233         }
3234         else
3235         {
3236             node->AddLeaf( children[index].GetID() );
3237         }
3238         index ++;
3239     }
3240     node->SetSubTreeCount( num );
3241     wxDataViewTreeNode * n = node->GetParent();
3242     if( n != NULL)
3243         n->ChangeSubTreeCount(num);
3244
3245 }
3246
3247 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3248 {
3249     DestroyTree();
3250
3251     if (GetOwner()->GetModel()->IsVirtualListModel())
3252     {
3253         m_count = -1;
3254         return;
3255     }
3256
3257     m_root = new wxDataViewTreeNode( NULL );
3258     m_root->SetHasChildren(true);
3259
3260     // First we define a invalid item to fetch the top-level elements
3261     wxDataViewItem item;
3262     SortPrepare();
3263     BuildTreeHelper( model, item, m_root);
3264     m_count = -1;
3265 }
3266
3267 static void DestroyTreeHelper( wxDataViewTreeNode * node )
3268 {
3269     if( node->GetNodeNumber() != 0 )
3270     {
3271         int len = node->GetNodeNumber();
3272         wxDataViewTreeNodes& nodes = node->GetNodes();
3273         for (int i = 0; i < len; i++)
3274             DestroyTreeHelper(nodes[i]);
3275     }
3276     delete node;
3277 }
3278
3279 void wxDataViewMainWindow::DestroyTree()
3280 {
3281     if (!IsVirtualList())
3282     {
3283         ::DestroyTreeHelper(m_root);
3284             m_count = 0;
3285             m_root = NULL;
3286     }
3287 }
3288
3289 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3290 {
3291     wxWindow * const parent = GetParent();
3292
3293     // propagate the char event upwards
3294     wxKeyEvent eventForParent(event);
3295     eventForParent.SetEventObject(parent);
3296     if ( parent->ProcessWindowEvent(eventForParent) )
3297         return;
3298
3299     if ( parent->HandleAsNavigationKey(event) )
3300         return;
3301
3302     // no item -> nothing to do
3303     if (!HasCurrentRow())
3304     {
3305         event.Skip();
3306         return;
3307     }
3308
3309     // don't use m_linesPerPage directly as it might not be computed yet
3310     const int pageSize = GetCountPerPage();
3311     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3312
3313     switch ( event.GetKeyCode() )
3314     {
3315         case WXK_RETURN:
3316             {
3317                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3318                                    parent->GetId());
3319                 le.SetItem( GetItemByRow(m_currentRow) );
3320                 le.SetEventObject(parent);
3321                 le.SetModel(GetOwner()->GetModel());
3322
3323                 parent->GetEventHandler()->ProcessEvent(le);
3324             }
3325             break;
3326
3327         case WXK_UP:
3328             if ( m_currentRow > 0 )
3329                 OnArrowChar( m_currentRow - 1, event );
3330             break;
3331
3332         case WXK_DOWN:
3333             if ( m_currentRow < GetRowCount() - 1 )
3334                 OnArrowChar( m_currentRow + 1, event );
3335             break;
3336         // Add the process for tree expanding/collapsing
3337         case WXK_LEFT:
3338         {
3339             if (IsList())
3340                break;
3341
3342             wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3343             if (!node)
3344                 break;
3345
3346             if (node->HasChildren() && node->IsOpen())
3347             {
3348                 Collapse(m_currentRow);
3349             }
3350             else    // if the node is already closed we move the selection to its parent
3351             {
3352                 wxDataViewTreeNode *parent_node = node->GetParent();
3353
3354                 if(!node->HasChildren())
3355                     delete node;
3356
3357                 if (parent_node)
3358                 {
3359                     int parent = GetRowByItem( parent_node->GetItem() );
3360                     if ( parent >= 0 )
3361                     {
3362                         unsigned int row = m_currentRow;
3363                         SelectRow( row, false);
3364                         SelectRow( parent, true );
3365                         ChangeCurrentRow( parent );
3366                         GetOwner()->EnsureVisible( parent, -1 );
3367                         SendSelectionChangedEvent( parent_node->GetItem() );
3368                     }
3369                 }
3370             }
3371             break;
3372         }
3373         case WXK_RIGHT:
3374         {
3375             if (!IsExpanded( m_currentRow ))
3376                 Expand( m_currentRow );
3377             else
3378             {
3379                 unsigned int row = m_currentRow;
3380                 SelectRow( row, false );
3381                 SelectRow( row + 1, true );
3382                 ChangeCurrentRow( row + 1 );
3383                 GetOwner()->EnsureVisible( row + 1, -1 );
3384                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3385             }
3386             break;
3387         }
3388         case WXK_END:
3389         {
3390             if (!IsEmpty())
3391                 OnArrowChar( GetRowCount() - 1, event );
3392             break;
3393         }
3394         case WXK_HOME:
3395             if (!IsEmpty())
3396                 OnArrowChar( 0, event );
3397             break;
3398
3399         case WXK_PAGEUP:
3400             {
3401                 int steps = pageSize - 1;
3402                 int index = m_currentRow - steps;
3403                 if (index < 0)
3404                     index = 0;
3405
3406                 OnArrowChar( index, event );
3407             }
3408             break;
3409
3410         case WXK_PAGEDOWN:
3411             {
3412                 int steps = pageSize - 1;
3413                 unsigned int index = m_currentRow + steps;
3414                 unsigned int count = GetRowCount();
3415                 if ( index >= count )
3416                     index = count - 1;
3417
3418                 OnArrowChar( index, event );
3419             }
3420             break;
3421
3422         case WXK_F2:
3423             {
3424                 if(m_selection.size() == 1)
3425                 {
3426                     // TODO: we need to revise that when we have a concept for a 'current column'
3427                     GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
3428                 }
3429             }
3430             break;
3431
3432         default:
3433             event.Skip();
3434     }
3435 }
3436
3437 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3438 {
3439     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3440     {
3441         // let the base handle mouse wheel events.
3442         event.Skip();
3443         return;
3444     }
3445
3446     // set the focus to ourself if any of the mouse buttons are pressed
3447     if(event.ButtonDown() && !HasFocus())
3448         SetFocus();
3449
3450     int x = event.GetX();
3451     int y = event.GetY();
3452     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3453     wxDataViewColumn *col = NULL;
3454
3455     int xpos = 0;
3456     unsigned int cols = GetOwner()->GetColumnCount();
3457     unsigned int i;
3458     for (i = 0; i < cols; i++)
3459     {
3460         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3461         if (c->IsHidden())
3462             continue;      // skip it!
3463
3464         if (x < xpos + c->GetWidth())
3465         {
3466             col = c;
3467             break;
3468         }
3469         xpos += c->GetWidth();
3470     }
3471     if (!col)
3472     {
3473         event.Skip();
3474         return;
3475     }
3476
3477     wxDataViewRenderer *cell = col->GetRenderer();
3478     unsigned int current = GetLineAt( y );
3479     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3480     {
3481         // Unselect all if below the last row ?
3482         event.Skip();
3483         return;
3484     }
3485
3486     // Test whether the mouse is hovered on the tree item button
3487     bool hoverOverExpander = false;
3488     if ((!IsList()) && (GetOwner()->GetExpanderColumn() == col))
3489     {
3490         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3491         if( node!=NULL && node->HasChildren() )
3492         {
3493             int indent = node->GetIndentLevel();
3494             indent = GetOwner()->GetIndent()*indent;
3495
3496             // we make the rectangle we are looking in a bit bigger than the actual
3497             // visual expander so the user can hit that little thing reliably
3498             wxRect rect( xpos + indent,
3499                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3500                         m_lineHeight, m_lineHeight);
3501             if( rect.Contains(x, y) )
3502             {
3503                 // So the mouse is over the expander
3504                 hoverOverExpander = true;
3505                 if (m_underMouse && m_underMouse != node)
3506                 {
3507                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3508                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3509                 }
3510                 if (m_underMouse != node)
3511                 {
3512                     // wxLogMessage("Do the row: %d", current);
3513                     RefreshRow(current);
3514                 }
3515                 m_underMouse = node;
3516             }
3517         }
3518         if (node!=NULL && !node->HasChildren())
3519             delete node;
3520     }
3521     if (!hoverOverExpander)
3522     {
3523         if (m_underMouse != NULL)
3524         {
3525             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3526             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3527             m_underMouse = NULL;
3528         }
3529     }
3530
3531     wxDataViewModel *model = GetOwner()->GetModel();
3532
3533 #if wxUSE_DRAG_AND_DROP
3534     if (event.Dragging())
3535     {
3536         if (m_dragCount == 0)
3537         {
3538             // we have to report the raw, physical coords as we want to be
3539             // able to call HitTest(event.m_pointDrag) from the user code to
3540             // get the item being dragged
3541             m_dragStart = event.GetPosition();
3542         }
3543
3544         m_dragCount++;
3545
3546         if (m_dragCount != 3)
3547             return;
3548
3549         if (event.LeftIsDown())
3550         {
3551             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3552                                              &m_dragStart.x, &m_dragStart.y );
3553             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3554             wxDataViewItem item = GetItemByRow( drag_item_row );
3555
3556             // Notify cell about drag
3557             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3558             event.SetEventObject( m_owner );
3559             event.SetItem( item );
3560             event.SetModel( model );
3561             if (!m_owner->HandleWindowEvent( event ))
3562                 return;
3563
3564             if (!event.IsAllowed())
3565                 return;
3566
3567             wxDataObject *obj = event.GetDataObject();
3568             if (!obj)
3569                 return;
3570
3571             wxDataViewDropSource drag( this, drag_item_row );
3572             drag.SetData( *obj );
3573             /* wxDragResult res = */ drag.DoDragDrop();
3574             delete obj;
3575         }
3576         return;
3577     }
3578     else
3579     {
3580         m_dragCount = 0;
3581     }
3582 #endif // wxUSE_DRAG_AND_DROP
3583
3584     bool simulateClick = false;
3585
3586     if (event.ButtonDClick())
3587     {
3588         m_renameTimer->Stop();
3589         m_lastOnSame = false;
3590     }
3591
3592     wxDataViewItem item = GetItemByRow(current);
3593     bool ignore_other_columns =
3594         ((GetOwner()->GetExpanderColumn() != col) &&
3595         (model->IsContainer(item)) &&
3596         (!model->HasContainerColumns(item)));
3597
3598     if (event.LeftDClick())
3599     {
3600         if(hoverOverExpander)
3601         {
3602             // a double click on the expander will be converted into a "simulated" normal click
3603             simulateClick = true;
3604         }
3605         else if ( current == m_lineLastClicked )
3606         {
3607             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
3608             {
3609                 const unsigned colIdx = col->GetModelColumn();
3610
3611                 wxVariant value;
3612                 model->GetValue( value, item, colIdx );
3613
3614                 cell->WXOnActivate(model, value, item, colIdx);
3615
3616                 if ( wxDataViewCustomRenderer *custom = cell->WXGetAsCustom() )
3617                 {
3618                     cell->SetValue( value );
3619
3620                     wxRect cell_rect( xpos, GetLineStart( current ),
3621                                     col->GetWidth(), GetLineHeight( current ) );
3622                     custom->Activate( cell_rect, model, item, colIdx );
3623                 }
3624             }
3625             else
3626             {
3627                 wxWindow *parent = GetParent();
3628                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3629                 le.SetItem( item );
3630                 le.SetColumn( col->GetModelColumn() );
3631                 le.SetDataViewColumn( col );
3632                 le.SetEventObject(parent);
3633                 le.SetModel(GetOwner()->GetModel());
3634
3635                 parent->GetEventHandler()->ProcessEvent(le);
3636             }
3637             return;
3638         }
3639         else
3640         {
3641             // The first click was on another item, so don't interpret this as
3642             // a double click, but as a simple click instead
3643             simulateClick = true;
3644         }
3645     }
3646
3647     if (event.LeftUp() && !hoverOverExpander)
3648     {
3649         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3650         {
3651             // select single line
3652             SelectAllRows( false );
3653             SelectRow( m_lineSelectSingleOnUp, true );
3654             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3655         }
3656
3657         // If the user click the expander, we do not do editing even if the column
3658         // with expander are editable
3659         if (m_lastOnSame && !ignore_other_columns)
3660         {
3661             if ((col == m_currentCol) && (current == m_currentRow) &&
3662                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3663             {
3664                 m_renameTimer->Start( 100, true );
3665             }
3666         }
3667
3668         m_lastOnSame = false;
3669         m_lineSelectSingleOnUp = (unsigned int)-1;
3670     }
3671     else if(!event.LeftUp())
3672     {
3673         // This is necessary, because after a DnD operation in
3674         // from and to ourself, the up event is swallowed by the
3675         // DnD code. So on next non-up event (which means here and
3676         // now) m_lineSelectSingleOnUp should be reset.
3677         m_lineSelectSingleOnUp = (unsigned int)-1;
3678     }
3679
3680     if (event.RightDown())
3681     {
3682         m_lineBeforeLastClicked = m_lineLastClicked;
3683         m_lineLastClicked = current;
3684
3685         // If the item is already selected, do not update the selection.
3686         // Multi-selections should not be cleared if a selected item is clicked.
3687         if (!IsRowSelected(current))
3688         {
3689             SelectAllRows(false);
3690             ChangeCurrentRow(current);
3691             SelectRow(m_currentRow,true);
3692             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3693         }
3694     }
3695     else if (event.RightUp())
3696     {
3697         wxVariant value;
3698         model->GetValue( value, item, col->GetModelColumn() );
3699         wxWindow *parent = GetParent();
3700         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3701         le.SetItem( item );
3702         le.SetColumn( col->GetModelColumn() );
3703         le.SetDataViewColumn( col );
3704         le.SetEventObject(parent);
3705         le.SetModel(GetOwner()->GetModel());
3706         le.SetValue(value);
3707         parent->GetEventHandler()->ProcessEvent(le);
3708     }
3709     else if (event.MiddleDown())
3710     {
3711     }
3712
3713     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3714     {
3715         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3716
3717         // hoverOverExpander being true tells us that our node must be
3718         // valid and have children.
3719         // So we don't need any extra checks.
3720         if( node->IsOpen() )
3721             Collapse(current);
3722         else
3723             Expand(current);
3724     }
3725     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3726     {
3727         m_lineBeforeLastClicked = m_lineLastClicked;
3728         m_lineLastClicked = current;
3729
3730         unsigned int oldCurrentRow = m_currentRow;
3731         bool oldWasSelected = IsRowSelected(m_currentRow);
3732
3733         bool cmdModifierDown = event.CmdDown();
3734         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3735         {
3736             if ( IsSingleSel() || !IsRowSelected(current) )
3737             {
3738                 SelectAllRows( false );
3739                 ChangeCurrentRow(current);
3740                 SelectRow(m_currentRow,true);
3741                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3742             }
3743             else // multi sel & current is highlighted & no mod keys
3744             {
3745                 m_lineSelectSingleOnUp = current;
3746                 ChangeCurrentRow(current); // change focus
3747             }
3748         }
3749         else // multi sel & either ctrl or shift is down
3750         {
3751             if (cmdModifierDown)
3752             {
3753                 ChangeCurrentRow(current);
3754                 ReverseRowSelection(m_currentRow);
3755                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3756             }
3757             else if (event.ShiftDown())
3758             {
3759                 ChangeCurrentRow(current);
3760
3761                 unsigned int lineFrom = oldCurrentRow,
3762                     lineTo = current;
3763
3764                 if ( lineTo < lineFrom )
3765                 {
3766                     lineTo = lineFrom;
3767                     lineFrom = m_currentRow;
3768                 }
3769
3770                 SelectRows(lineFrom, lineTo, true);
3771                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
3772             }
3773             else // !ctrl, !shift
3774             {
3775                 // test in the enclosing if should make it impossible
3776                 wxFAIL_MSG( wxT("how did we get here?") );
3777             }
3778         }
3779
3780         if (m_currentRow != oldCurrentRow)
3781             RefreshRow( oldCurrentRow );
3782
3783         wxDataViewColumn *oldCurrentCol = m_currentCol;
3784
3785         // Update selection here...
3786         m_currentCol = col;
3787
3788         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
3789                         (current == oldCurrentRow)) && oldWasSelected;
3790
3791         // Call LeftClick after everything else as under GTK+
3792         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
3793         {
3794             if ( wxDataViewCustomRenderer *custom = cell->WXGetAsCustom() )
3795             {
3796                 // notify cell about click
3797                 custom->PrepareForItem(model, item, col->GetModelColumn());
3798
3799                 wxRect cell_rect( xpos, GetLineStart( current ),
3800                                   col->GetWidth(), GetLineHeight( current ) );
3801
3802                 // Report position relative to the cell's custom area, i.e.
3803                 // no the entire space as given by the control but the one
3804                 // used by the renderer after calculation of alignment etc.
3805
3806                 // adjust the rectangle ourselves to account for the alignment
3807                 wxRect rectItem = cell_rect;
3808                 const int align = custom->GetAlignment();
3809                 if ( align != wxDVR_DEFAULT_ALIGNMENT )
3810                 {
3811                     const wxSize size = custom->GetSize();
3812
3813                     if ( size.x >= 0 && size.x < cell_rect.width )
3814                     {
3815                         if ( align & wxALIGN_CENTER_HORIZONTAL )
3816                             rectItem.x += (cell_rect.width - size.x)/2;
3817                         else if ( align & wxALIGN_RIGHT )
3818                             rectItem.x += cell_rect.width - size.x;
3819                         // else: wxALIGN_LEFT is the default
3820                     }
3821
3822                     if ( size.y >= 0 && size.y < cell_rect.height )
3823                     {
3824                         if ( align & wxALIGN_CENTER_VERTICAL )
3825                             rectItem.y += (cell_rect.height - size.y)/2;
3826                         else if ( align & wxALIGN_BOTTOM )
3827                             rectItem.y += cell_rect.height - size.y;
3828                         // else: wxALIGN_TOP is the default
3829                     }
3830                 }
3831
3832                 wxPoint pos( event.GetPosition() );
3833                 pos.x -= rectItem.x;
3834                 pos.y -= rectItem.y;
3835
3836                 m_owner->CalcUnscrolledPosition( pos.x, pos.y, &pos.x, &pos.y );
3837
3838                  /* ignore ret */ custom->LeftClick( pos, cell_rect,
3839                                   model, item, col->GetModelColumn());
3840             }
3841         }
3842     }
3843 }
3844
3845 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
3846 {
3847     m_hasFocus = true;
3848
3849     if (HasCurrentRow())
3850         Refresh();
3851
3852     event.Skip();
3853 }
3854
3855 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
3856 {
3857     m_hasFocus = false;
3858
3859     if (HasCurrentRow())
3860         Refresh();
3861
3862     event.Skip();
3863 }
3864
3865 wxDataViewItem wxDataViewMainWindow::GetSelection() const
3866 {
3867     if( m_selection.GetCount() != 1 )
3868         return wxDataViewItem();
3869
3870     return GetItemByRow( m_selection.Item(0));
3871 }
3872
3873 //-----------------------------------------------------------------------------
3874 // wxDataViewCtrl
3875 //-----------------------------------------------------------------------------
3876
3877 WX_DEFINE_LIST(wxDataViewColumnList)
3878
3879 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
3880 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
3881     EVT_SIZE(wxDataViewCtrl::OnSize)
3882 END_EVENT_TABLE()
3883
3884 wxDataViewCtrl::~wxDataViewCtrl()
3885 {
3886     if (m_notifier)
3887         GetModel()->RemoveNotifier( m_notifier );
3888
3889     m_cols.Clear();
3890     m_colsBestWidths.clear();
3891 }
3892
3893 void wxDataViewCtrl::Init()
3894 {
3895     m_cols.DeleteContents(true);
3896     m_notifier = NULL;
3897
3898     // No sorting column at start
3899     m_sortingColumnIdx = wxNOT_FOUND;
3900
3901     m_headerArea = NULL;
3902 }
3903
3904 bool wxDataViewCtrl::Create(wxWindow *parent,
3905                             wxWindowID id,
3906                             const wxPoint& pos,
3907                             const wxSize& size,
3908                             long style,
3909                             const wxValidator& validator,
3910                             const wxString& name)
3911 {
3912 //    if ( (style & wxBORDER_MASK) == 0)
3913 //        style |= wxBORDER_SUNKEN;
3914
3915     Init();
3916
3917     if (!wxControl::Create( parent, id, pos, size,
3918                             style | wxScrolledWindowStyle, validator, name))
3919         return false;
3920
3921     SetInitialSize(size);
3922
3923 #ifdef __WXMAC__
3924     MacSetClipChildren( true );
3925 #endif
3926
3927     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
3928
3929     // We use the cursor keys for moving the selection, not scrolling, so call
3930     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
3931     // keyboard events forwarded to us from wxListMainWindow.
3932     DisableKeyboardScrolling();
3933
3934     if (HasFlag(wxDV_NO_HEADER))
3935         m_headerArea = NULL;
3936     else
3937         m_headerArea = new wxDataViewHeaderWindow(this);
3938
3939     SetTargetWindow( m_clientArea );
3940
3941     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
3942     if (m_headerArea)
3943         sizer->Add( m_headerArea, 0, wxGROW );
3944     sizer->Add( m_clientArea, 1, wxGROW );
3945     SetSizer( sizer );
3946
3947     return true;
3948 }
3949
3950 wxBorder wxDataViewCtrl::GetDefaultBorder() const
3951 {
3952     return wxBORDER_THEME;
3953 }
3954
3955 #ifdef __WXMSW__
3956 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
3957                                         WXWPARAM wParam,
3958                                         WXLPARAM lParam)
3959 {
3960     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
3961
3962 #ifndef __WXWINCE__
3963     // we need to process arrows ourselves for scrolling
3964     if ( nMsg == WM_GETDLGCODE )
3965     {
3966         rc |= DLGC_WANTARROWS;
3967     }
3968 #endif
3969
3970     return rc;
3971 }
3972 #endif
3973
3974 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
3975 {
3976     wxSize newsize = size;
3977     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
3978     newsize.y -= m_headerArea->GetSize().y;
3979
3980     return newsize;
3981 }
3982
3983 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
3984 {
3985     // We need to override OnSize so that our scrolled
3986     // window a) does call Layout() to use sizers for
3987     // positioning the controls but b) does not query
3988     // the sizer for their size and use that for setting
3989     // the scrollable area as set that ourselves by
3990     // calling SetScrollbar() further down.
3991
3992     Layout();
3993
3994     AdjustScrollbars();
3995 }
3996
3997 void wxDataViewCtrl::SetFocus()
3998 {
3999     if (m_clientArea)
4000         m_clientArea->SetFocus();
4001 }
4002
4003 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4004 {
4005     if (!wxDataViewCtrlBase::AssociateModel( model ))
4006         return false;
4007
4008     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4009
4010     model->AddNotifier( m_notifier );
4011
4012     m_clientArea->DestroyTree();
4013
4014     m_clientArea->BuildTree(model);
4015
4016     m_clientArea->UpdateDisplay();
4017
4018     return true;
4019 }
4020
4021 #if wxUSE_DRAG_AND_DROP
4022
4023 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4024 {
4025     return m_clientArea->EnableDragSource( format );
4026 }
4027
4028 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4029 {
4030     return m_clientArea->EnableDropTarget( format );
4031 }
4032
4033 #endif // wxUSE_DRAG_AND_DROP
4034
4035 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4036 {
4037     if (!wxDataViewCtrlBase::AppendColumn(col))
4038         return false;
4039
4040     m_cols.Append( col );
4041     m_colsBestWidths.push_back(0);
4042     OnColumnsCountChanged();
4043     return true;
4044 }
4045
4046 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4047 {
4048     if (!wxDataViewCtrlBase::PrependColumn(col))
4049         return false;
4050
4051     m_cols.Insert( col );
4052     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4053     OnColumnsCountChanged();
4054     return true;
4055 }
4056
4057 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4058 {
4059     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4060         return false;
4061
4062     m_cols.Insert( pos, col );
4063     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4064     OnColumnsCountChanged();
4065     return true;
4066 }
4067
4068 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4069 {
4070     if ( m_headerArea )
4071         m_headerArea->UpdateColumn(idx);
4072
4073     m_clientArea->UpdateDisplay();
4074 }
4075
4076 void wxDataViewCtrl::OnColumnsCountChanged()
4077 {
4078     if (m_headerArea)
4079         m_headerArea->SetColumnCount(GetColumnCount());
4080
4081     m_clientArea->UpdateDisplay();
4082 }
4083
4084 void wxDataViewCtrl::DoSetExpanderColumn()
4085 {
4086     m_clientArea->UpdateDisplay();
4087 }
4088
4089 void wxDataViewCtrl::DoSetIndent()
4090 {
4091     m_clientArea->UpdateDisplay();
4092 }
4093
4094 unsigned int wxDataViewCtrl::GetColumnCount() const
4095 {
4096     return m_cols.GetCount();
4097 }
4098
4099 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4100 {
4101     return m_cols[idx];
4102 }
4103
4104 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4105 {
4106     // columns can't be reordered if there is no header window which allows
4107     // to do this
4108     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4109                                     : pos;
4110
4111     return GetColumn(idx);
4112 }
4113
4114 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4115 {
4116     const unsigned count = m_cols.size();
4117     for ( unsigned n = 0; n < count; n++ )
4118     {
4119         if ( m_cols[n] == column )
4120             return n;
4121     }
4122
4123     return wxNOT_FOUND;
4124 }
4125
4126 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4127 {
4128     if ( m_colsBestWidths[idx] != 0 )
4129         return m_colsBestWidths[idx];
4130
4131     const int count = m_clientArea->GetRowCount();
4132     wxDataViewColumn *column = GetColumn(idx);
4133     wxDataViewRenderer *renderer =
4134         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4135
4136     class MaxWidthCalculator
4137     {
4138     public:
4139         MaxWidthCalculator(wxDataViewMainWindow *clientArea,
4140                            wxDataViewRenderer *renderer,
4141                            const wxDataViewModel *model,
4142                            unsigned column)
4143             : m_width(0),
4144               m_clientArea(clientArea),
4145               m_renderer(renderer),
4146               m_model(model),
4147               m_column(column)
4148         {
4149         }
4150
4151         void UpdateWithWidth(int width)
4152         {
4153             m_width = wxMax(m_width, width);
4154         }
4155
4156         void UpdateWithRow(int row)
4157         {
4158             wxDataViewItem item = m_clientArea->GetItemByRow(row);
4159             m_renderer->PrepareForItem(m_model, item, m_column);
4160             m_width = wxMax(m_width, m_renderer->GetSize().x);
4161         }
4162
4163         int GetMaxWidth() const { return m_width; }
4164
4165     private:
4166         int m_width;
4167         wxDataViewMainWindow *m_clientArea;
4168         wxDataViewRenderer *m_renderer;
4169         const wxDataViewModel *m_model;
4170         unsigned m_column;
4171     };
4172
4173     MaxWidthCalculator calculator(m_clientArea, renderer,
4174                                   GetModel(), column->GetModelColumn());
4175
4176     if ( m_headerArea )
4177     {
4178         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4179         // Labels on native MSW header are indented on both sides
4180         header_width +=
4181             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4182         calculator.UpdateWithWidth(header_width);
4183     }
4184
4185     // The code below deserves some explanation. For very large controls, we
4186     // simply can't afford to calculate sizes for all items, it takes too
4187     // long. So the best we can do is to check the first and the last N/2
4188     // items in the control for some sufficiently large N and calculate best
4189     // sizes from that. That can result in the calculated best width being too
4190     // small for some outliers, but it's better to get slightly imperfect
4191     // result than to wait several seconds after every update. To avoid highly
4192     // visible miscalculations, we also include all currently visible items
4193     // no matter what.  Finally, the value of N is determined dynamically by
4194     // measuring how much time we spent on the determining item widths so far.
4195
4196 #if wxUSE_STOPWATCH
4197     int top_part_end = count;
4198     static const long CALC_TIMEOUT = 20/*ms*/;
4199     // don't call wxStopWatch::Time() too often
4200     static const unsigned CALC_CHECK_FREQ = 100;
4201     wxStopWatch timer;
4202 #else
4203     // use some hard-coded limit, that's the best we can do without timer
4204     int top_part_end = wxMin(500, count);
4205 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4206
4207     int row = 0;
4208
4209     for ( row = 0; row < top_part_end; row++ )
4210     {
4211 #if wxUSE_STOPWATCH
4212         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4213              timer.Time() > CALC_TIMEOUT )
4214             break;
4215 #endif // wxUSE_STOPWATCH
4216         calculator.UpdateWithRow(row);
4217     }
4218
4219     // row is the first unmeasured item now; that's out value of N/2
4220
4221     if ( row < count )
4222     {
4223         top_part_end = row;
4224
4225         // add bottom N/2 items now:
4226         const int bottom_part_start = wxMax(row, count - row);
4227         for ( row = bottom_part_start; row < count; row++ )
4228         {
4229             calculator.UpdateWithRow(row);
4230         }
4231
4232         // finally, include currently visible items in the calculation:
4233         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4234         int first_visible = m_clientArea->GetLineAt(origin.y);
4235         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4236
4237         first_visible = wxMax(first_visible, top_part_end);
4238         last_visible = wxMin(bottom_part_start, last_visible);
4239
4240         for ( row = first_visible; row < last_visible; row++ )
4241         {
4242             calculator.UpdateWithRow(row);
4243         }
4244
4245         wxLogTrace("dataview",
4246                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4247                    top_part_end,
4248                    count - bottom_part_start,
4249                    wxMax(0, last_visible - first_visible),
4250                    count);
4251     }
4252
4253     int max_width = calculator.GetMaxWidth();
4254     if ( max_width > 0 )
4255         max_width += 2 * PADDING_RIGHTLEFT;
4256
4257     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4258     return max_width;
4259
4260     #undef MEASURE_ITEM
4261 }
4262
4263 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4264                                 unsigned int WXUNUSED(new_pos))
4265 {
4266     // do _not_ reorder m_cols elements here, they should always be in the
4267     // order in which columns were added, we only display the columns in
4268     // different order
4269     m_clientArea->UpdateDisplay();
4270 }
4271
4272 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4273 {
4274     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4275     if (!ret)
4276         return false;
4277
4278     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4279     m_cols.Erase(ret);
4280     OnColumnsCountChanged();
4281
4282     return true;
4283 }
4284
4285 bool wxDataViewCtrl::ClearColumns()
4286 {
4287     m_cols.Clear();
4288     m_colsBestWidths.clear();
4289     OnColumnsCountChanged();
4290     return true;
4291 }
4292
4293 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4294 {
4295     m_colsBestWidths[idx] = 0;
4296
4297     if ( m_headerArea )
4298         m_headerArea->UpdateColumn(idx);
4299 }
4300
4301 void wxDataViewCtrl::InvalidateColBestWidths()
4302 {
4303     m_colsBestWidths.clear();
4304     m_colsBestWidths.resize(m_cols.size());
4305
4306     if ( m_headerArea )
4307     {
4308         // this updates visual appearance of columns 0 and up, not just 0
4309         m_headerArea->UpdateColumn(0);
4310     }
4311 }
4312
4313 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4314 {
4315 #if 1
4316     unsigned int len = GetColumnCount();
4317     for ( unsigned int i = 0; i < len; i++ )
4318     {
4319         wxDataViewColumn * col = GetColumnAt(i);
4320         if (column==col)
4321             return i;
4322     }
4323
4324     return wxNOT_FOUND;
4325 #else
4326     // This returns the position in pixels which is not what we want.
4327     int ret = 0,
4328         dummy = 0;
4329     unsigned int len = GetColumnCount();
4330     for ( unsigned int i = 0; i < len; i++ )
4331     {
4332         wxDataViewColumn * col = GetColumnAt(i);
4333         if (col->IsHidden())
4334             continue;
4335         ret += col->GetWidth();
4336         if (column==col)
4337         {
4338             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4339             break;
4340         }
4341     }
4342     return ret;
4343 #endif
4344 }
4345
4346 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4347 {
4348     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4349                                             : GetColumn(m_sortingColumnIdx);
4350 }
4351
4352 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4353 {
4354     return GetItemByRow(m_clientArea->GetCurrentRow());
4355 }
4356
4357 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4358 {
4359     const int row = m_clientArea->GetRowByItem(item);
4360
4361     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4362     if ( static_cast<unsigned>(row) != oldCurrent )
4363     {
4364         m_clientArea->ChangeCurrentRow(row);
4365         m_clientArea->RefreshRow(oldCurrent);
4366         m_clientArea->RefreshRow(row);
4367     }
4368 }
4369
4370 // Selection code with wxDataViewItem as parameters
4371 wxDataViewItem wxDataViewCtrl::GetSelection() const
4372 {
4373     return m_clientArea->GetSelection();
4374 }
4375
4376 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4377 {
4378     sel.Empty();
4379     wxDataViewSelection selection = m_clientArea->GetSelections();
4380     int len = selection.GetCount();
4381     for( int i = 0; i < len; i ++)
4382     {
4383         unsigned int row = selection[i];
4384         sel.Add( m_clientArea->GetItemByRow( row ) );
4385     }
4386     return len;
4387 }
4388
4389 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4390 {
4391     wxDataViewSelection selection(wxDataViewSelectionCmp);
4392
4393     wxDataViewItem last_parent;
4394
4395     int len = sel.GetCount();
4396     for( int i = 0; i < len; i ++ )
4397     {
4398         wxDataViewItem item = sel[i];
4399         wxDataViewItem parent = GetModel()->GetParent( item );
4400         if (parent)
4401         {
4402             if (parent != last_parent)
4403                 ExpandAncestors(item);
4404         }
4405
4406         last_parent = parent;
4407         int row = m_clientArea->GetRowByItem( item );
4408         if( row >= 0 )
4409             selection.Add( static_cast<unsigned int>(row) );
4410     }
4411
4412     m_clientArea->SetSelections( selection );
4413 }
4414
4415 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4416 {
4417     ExpandAncestors( item );
4418
4419     int row = m_clientArea->GetRowByItem( item );
4420     if( row >= 0 )
4421     {
4422         // Unselect all rows before select another in the single select mode
4423         if (m_clientArea->IsSingleSel())
4424             m_clientArea->SelectAllRows(false);
4425
4426         m_clientArea->SelectRow(row, true);
4427
4428         // Also set focus to the selected item
4429         m_clientArea->ChangeCurrentRow( row );
4430     }
4431 }
4432
4433 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4434 {
4435     int row = m_clientArea->GetRowByItem( item );
4436     if( row >= 0 )
4437         m_clientArea->SelectRow(row, false);
4438 }
4439
4440 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4441 {
4442     int row = m_clientArea->GetRowByItem( item );
4443     if( row >= 0 )
4444     {
4445         return m_clientArea->IsRowSelected(row);
4446     }
4447     return false;
4448 }
4449
4450 // Selection code with row number as parameter
4451 int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
4452 {
4453     sel.Empty();
4454     wxDataViewSelection selection = m_clientArea->GetSelections();
4455     int len = selection.GetCount();
4456     for( int i = 0; i < len; i ++)
4457     {
4458         unsigned int row = selection[i];
4459         sel.Add( row );
4460     }
4461     return len;
4462 }
4463
4464 void wxDataViewCtrl::SetSelections( const wxArrayInt & sel )
4465 {
4466     wxDataViewSelection selection(wxDataViewSelectionCmp);
4467     int len = sel.GetCount();
4468     for( int i = 0; i < len; i ++ )
4469     {
4470         int row = sel[i];
4471         if( row >= 0 )
4472             selection.Add( static_cast<unsigned int>(row) );
4473     }
4474     m_clientArea->SetSelections( selection );
4475 }
4476
4477 void wxDataViewCtrl::Select( int row )
4478 {
4479     if( row >= 0 )
4480     {
4481         if (m_clientArea->IsSingleSel())
4482             m_clientArea->SelectAllRows(false);
4483         m_clientArea->SelectRow( row, true );
4484     }
4485 }
4486
4487 void wxDataViewCtrl::Unselect( int row )
4488 {
4489     if( row >= 0 )
4490         m_clientArea->SelectRow(row, false);
4491 }
4492
4493 bool wxDataViewCtrl::IsSelected( int row ) const
4494 {
4495     if( row >= 0 )
4496         return m_clientArea->IsRowSelected(row);
4497     return false;
4498 }
4499
4500 void wxDataViewCtrl::SelectRange( int from, int to )
4501 {
4502     wxArrayInt sel;
4503     for( int i = from; i < to; i ++ )
4504         sel.Add( i );
4505     m_clientArea->Select(sel);
4506 }
4507
4508 void wxDataViewCtrl::UnselectRange( int from, int to )
4509 {
4510     wxDataViewSelection sel = m_clientArea->GetSelections();
4511     for( int i = from; i < to; i ++ )
4512         if( sel.Index( i ) != wxNOT_FOUND )
4513             sel.Remove( i );
4514     m_clientArea->SetSelections(sel);
4515 }
4516
4517 void wxDataViewCtrl::SelectAll()
4518 {
4519     m_clientArea->SelectAllRows(true);
4520 }
4521
4522 void wxDataViewCtrl::UnselectAll()
4523 {
4524     m_clientArea->SelectAllRows(false);
4525 }
4526
4527 void wxDataViewCtrl::EnsureVisible( int row, int column )
4528 {
4529     if( row < 0 )
4530         row = 0;
4531     if( row > (int) m_clientArea->GetRowCount() )
4532         row = m_clientArea->GetRowCount();
4533
4534     int first = m_clientArea->GetFirstVisibleRow();
4535     int last = m_clientArea->GetLastVisibleRow();
4536     if( row < first )
4537         m_clientArea->ScrollTo( row, column );
4538     else if( row > last )
4539         m_clientArea->ScrollTo( row - last + first, column );
4540     else
4541         m_clientArea->ScrollTo( first, column );
4542 }
4543
4544 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4545 {
4546     ExpandAncestors( item );
4547
4548     m_clientArea->RecalculateDisplay();
4549
4550     int row = m_clientArea->GetRowByItem(item);
4551     if( row >= 0 )
4552     {
4553         if( column == NULL )
4554             EnsureVisible(row, -1);
4555         else
4556             EnsureVisible( row, GetColumnIndex(column) );
4557     }
4558
4559 }
4560
4561 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4562                               wxDataViewColumn* &column ) const
4563 {
4564     m_clientArea->HitTest(point, item, column);
4565 }
4566
4567 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4568                                     const wxDataViewColumn* column ) const
4569 {
4570     return m_clientArea->GetItemRect(item, column);
4571 }
4572
4573 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4574 {
4575     return m_clientArea->GetItemByRow( row );
4576 }
4577
4578 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4579 {
4580     return m_clientArea->GetRowByItem( item );
4581 }
4582
4583 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4584 {
4585     ExpandAncestors( item );
4586
4587     int row = m_clientArea->GetRowByItem( item );
4588     if (row != -1)
4589         m_clientArea->Expand(row);
4590 }
4591
4592 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4593 {
4594     int row = m_clientArea->GetRowByItem( item );
4595     if (row != -1)
4596         m_clientArea->Collapse(row);
4597 }
4598
4599 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4600 {
4601     int row = m_clientArea->GetRowByItem( item );
4602     if (row != -1)
4603         return m_clientArea->IsExpanded(row);
4604     return false;
4605 }
4606
4607 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4608 {
4609     wxDataViewColumn* col = GetColumn( column );
4610     if (!col)
4611         return;
4612
4613     wxRect itemRect = GetItemRect(item, col);
4614     wxDataViewRenderer* renderer = col->GetRenderer();
4615     renderer->StartEditing(item, itemRect);
4616 }
4617
4618 #endif // !wxUSE_GENERICDATAVIEWCTRL
4619
4620 #endif // wxUSE_DATAVIEWCTRL