src/generic/datavgen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/datavgen.cpp
   3 // Purpose:     wxDataViewCtrl generic implementation
   4 // Author:      Robert Roebling
   5 // Modified by: Francesco Montorsi, Guru Kathiresan, Bo Yang
   6 // Id:          $Id$
   7 // Copyright:   (c) 1998 Robert Roebling
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_DATAVIEWCTRL
  19
  20 #include "wx/dataview.h"
  21
  22 #ifdef wxUSE_GENERICDATAVIEWCTRL
  23
  24 #ifndef WX_PRECOMP
  25     #ifdef __WXMSW__
  26         #include "wx/msw/private.h"
  27         #include "wx/msw/wrapwin.h"
  28         #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  29     #endif
  30     #include "wx/sizer.h"
  31     #include "wx/log.h"
  32     #include "wx/dcclient.h"
  33     #include "wx/timer.h"
  34     #include "wx/settings.h"
  35     #include "wx/msgdlg.h"
  36     #include "wx/dcscreen.h"
  37     #include "wx/frame.h"
  38 #endif
  39
  40 #include "wx/stockitem.h"
  41 #include "wx/popupwin.h"
  42 #include "wx/renderer.h"
  43 #include "wx/dcbuffer.h"
  44 #include "wx/icon.h"
  45 #include "wx/list.h"
  46 #include "wx/listimpl.cpp"
  47 #include "wx/imaglist.h"
  48 #include "wx/headerctrl.h"
  49 #include "wx/dnd.h"
  50 #include "wx/stopwatch.h"
  51
  52 //-----------------------------------------------------------------------------
  53 // classes
  54 //-----------------------------------------------------------------------------
  55
  56 class wxDataViewColumn;
  57 class wxDataViewHeaderWindow;
  58 class wxDataViewCtrl;
  59
  60 //-----------------------------------------------------------------------------
  61 // classes
  62 //-----------------------------------------------------------------------------
  63
  64 static const int SCROLL_UNIT_X = 15;
  65
  66 // the cell padding on the left/right
  67 static const int PADDING_RIGHTLEFT = 3;
  68
  69 // the expander space margin
  70 static const int EXPANDER_MARGIN = 4;
  71
  72 #ifdef __WXMSW__
  73 static const int EXPANDER_OFFSET = 4;
  74 #else
  75 static const int EXPANDER_OFFSET = 1;
  76 #endif
  77
  78 // Below is the compare stuff.
  79 // For the generic implementation, both the leaf nodes and the nodes are sorted for
  80 // fast search when needed
  81 static wxDataViewModel* g_model;
  82 static int g_column = -2;
  83 static bool g_asending = true;
  84
  85 // ----------------------------------------------------------------------------
  86 // helper functions
  87 // ----------------------------------------------------------------------------
  88
  89 namespace
  90 {
  91
  92 // Return the expander column or, if it is not set, the first column and also
  93 // set it as the expander one for the future.
  94 wxDataViewColumn* GetExpanderColumnOrFirstOne(wxDataViewCtrl* dataview)
  95 {
  96     wxDataViewColumn* expander = dataview->GetExpanderColumn();
  97     if (!expander)
  98     {
  99         // TODO-RTL: last column for RTL support
 100         expander = dataview->GetColumnAt( 0 );
 101         dataview->SetExpanderColumn(expander);
 102     }
 103
 104     return expander;
 105 }
 106
 107 } // anonymous namespace
 108
 109 //-----------------------------------------------------------------------------
 110 // wxDataViewColumn
 111 //-----------------------------------------------------------------------------
 112
 113 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
 114 {
 115     m_width = width;
 116     m_minWidth = 0;
 117     m_align = align;
 118     m_flags = flags;
 119     m_sort = false;
 120     m_sortAscending = true;
 121 }
 122
 123 int wxDataViewColumn::GetWidth() const
 124 {
 125     switch ( m_width )
 126     {
 127         case wxCOL_WIDTH_DEFAULT:
 128             return wxDVC_DEFAULT_WIDTH;
 129
 130         case wxCOL_WIDTH_AUTOSIZE:
 131             wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
 132             return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
 133
 134         default:
 135             return m_width;
 136     }
 137 }
 138
 139 void wxDataViewColumn::UpdateDisplay()
 140 {
 141     if (m_owner)
 142     {
 143         int idx = m_owner->GetColumnIndex( this );
 144         m_owner->OnColumnChange( idx );
 145     }
 146 }
 147
 148 void wxDataViewColumn::SetSortOrder(bool ascending)
 149 {
 150     if ( !m_owner )
 151         return;
 152
 153     // First unset the old sort column if any.
 154     int oldSortKey = m_owner->GetSortingColumnIndex();
 155     if ( oldSortKey != wxNOT_FOUND )
 156     {
 157         m_owner->GetColumn(oldSortKey)->UnsetAsSortKey();
 158     }
 159
 160     // Now set this one as the new sort column.
 161     const int idx = m_owner->GetColumnIndex(this);
 162     m_owner->SetSortingColumnIndex(idx);
 163
 164     m_sort = true;
 165     m_sortAscending = ascending;
 166
 167     // Call this directly instead of using UpdateDisplay() as we already have
 168     // the column index, no need to look it up again.
 169     m_owner->OnColumnChange(idx);
 170 }
 171
 172 //-----------------------------------------------------------------------------
 173 // wxDataViewHeaderWindow
 174 //-----------------------------------------------------------------------------
 175
 176 class wxDataViewHeaderWindow : public wxHeaderCtrl
 177 {
 178 public:
 179     wxDataViewHeaderWindow(wxDataViewCtrl *parent)
 180         : wxHeaderCtrl(parent)
 181     {
 182     }
 183
 184     wxDataViewCtrl *GetOwner() const
 185         { return static_cast<wxDataViewCtrl *>(GetParent()); }
 186
 187 protected:
 188     // implement/override wxHeaderCtrl functions by forwarding them to the main
 189     // control
 190     virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
 191     {
 192         return *(GetOwner()->GetColumn(idx));
 193     }
 194
 195     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
 196     {
 197         wxDataViewCtrl * const owner = GetOwner();
 198
 199         int widthContents = owner->GetBestColumnWidth(idx);
 200         owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
 201         owner->OnColumnChange(idx);
 202
 203         return true;
 204     }
 205
 206 private:
 207     bool SendEvent(wxEventType type, unsigned int n)
 208     {
 209         wxDataViewCtrl * const owner = GetOwner();
 210         wxDataViewEvent event(type, owner->GetId());
 211
 212         event.SetEventObject(owner);
 213         event.SetColumn(n);
 214         event.SetDataViewColumn(owner->GetColumn(n));
 215         event.SetModel(owner->GetModel());
 216
 217         // for events created by wxDataViewHeaderWindow the
 218         // row / value fields are not valid
 219         return owner->ProcessWindowEvent(event);
 220     }
 221
 222     void OnClick(wxHeaderCtrlEvent& event)
 223     {
 224         const unsigned idx = event.GetColumn();
 225
 226         if ( SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
 227             return;
 228
 229         // default handling for the column click is to sort by this column or
 230         // toggle its sort order
 231         wxDataViewCtrl * const owner = GetOwner();
 232         wxDataViewColumn * const col = owner->GetColumn(idx);
 233         if ( !col->IsSortable() )
 234         {
 235             // no default handling for non-sortable columns
 236             event.Skip();
 237             return;
 238         }
 239
 240         if ( col->IsSortKey() )
 241         {
 242             // already using this column for sorting, just change the order
 243             col->ToggleSortOrder();
 244         }
 245         else // not using this column for sorting yet
 246         {
 247             col->SetSortOrder(true);
 248         }
 249
 250         wxDataViewModel * const model = owner->GetModel();
 251         if ( model )
 252             model->Resort();
 253
 254         owner->OnColumnChange(idx);
 255
 256         SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, idx);
 257     }
 258
 259     void OnRClick(wxHeaderCtrlEvent& event)
 260     {
 261         if ( !SendEvent(wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
 262                         event.GetColumn()) )
 263             event.Skip();
 264     }
 265
 266     void OnResize(wxHeaderCtrlEvent& event)
 267     {
 268         wxDataViewCtrl * const owner = GetOwner();
 269
 270         const unsigned col = event.GetColumn();
 271         owner->GetColumn(col)->SetWidth(event.GetWidth());
 272         GetOwner()->OnColumnChange(col);
 273     }
 274
 275     void OnEndReorder(wxHeaderCtrlEvent& event)
 276     {
 277         wxDataViewCtrl * const owner = GetOwner();
 278         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
 279                         event.GetNewOrder());
 280     }
 281
 282     DECLARE_EVENT_TABLE()
 283     wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
 284 };
 285
 286 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
 287     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
 288     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 289
 290     EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 291     EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
 292
 293     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 294 END_EVENT_TABLE()
 295
 296 //-----------------------------------------------------------------------------
 297 // wxDataViewRenameTimer
 298 //-----------------------------------------------------------------------------
 299
 300 class wxDataViewRenameTimer: public wxTimer
 301 {
 302 private:
 303     wxDataViewMainWindow *m_owner;
 304
 305 public:
 306     wxDataViewRenameTimer( wxDataViewMainWindow *owner );
 307     void Notify();
 308 };
 309
 310 //-----------------------------------------------------------------------------
 311 // wxDataViewTreeNode
 312 //-----------------------------------------------------------------------------
 313
 314 class wxDataViewTreeNode;
 315 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 316
 317 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 318                                            wxDataViewTreeNode ** node2);
 319
 320 class wxDataViewTreeNode
 321 {
 322 public:
 323     wxDataViewTreeNode(wxDataViewTreeNode *parent, const wxDataViewItem& item)
 324         : m_parent(parent),
 325           m_item(item),
 326           m_branchData(NULL)
 327     {
 328     }
 329
 330     ~wxDataViewTreeNode()
 331     {
 332         if ( m_branchData )
 333         {
 334             wxDataViewTreeNodes& nodes = m_branchData->children;
 335             for ( wxDataViewTreeNodes::iterator i = nodes.begin();
 336                   i != nodes.end();
 337                   ++i )
 338             {
 339                 delete *i;
 340             }
 341
 342             delete m_branchData;
 343         }
 344     }
 345
 346     static wxDataViewTreeNode* CreateRootNode()
 347     {
 348         wxDataViewTreeNode *n = new wxDataViewTreeNode(NULL, wxDataViewItem());
 349         n->SetHasChildren(true);
 350         n->m_branchData->open = true;
 351         return n;
 352     }
 353
 354     wxDataViewTreeNode * GetParent() const { return m_parent; }
 355
 356     const wxDataViewTreeNodes& GetChildNodes() const
 357     {
 358         wxASSERT( m_branchData != NULL );
 359         return m_branchData->children;
 360     }
 361
 362     void InsertChild(wxDataViewTreeNode *node, unsigned index)
 363     {
 364         if ( !m_branchData )
 365             m_branchData = new BranchNodeData;
 366
 367         m_branchData->children.Insert(node, index);
 368
 369         // TODO: insert into sorted array directly in O(log n) instead of resorting in O(n log n)
 370         if (g_column >= -1)
 371             m_branchData->children.Sort( &wxGenericTreeModelNodeCmp );
 372     }
 373
 374     void RemoveChild(wxDataViewTreeNode *node)
 375     {
 376         wxCHECK_RET( m_branchData != NULL, "leaf node doesn't have children" );
 377         m_branchData->children.Remove(node);
 378     }
 379
 380     const wxDataViewItem & GetItem() const { return m_item; }
 381     void SetItem( const wxDataViewItem & item ) { m_item = item; }
 382
 383     int GetIndentLevel() const
 384     {
 385         int ret = 0;
 386         const wxDataViewTreeNode * node = this;
 387         while( node->GetParent()->GetParent() != NULL )
 388         {
 389             node = node->GetParent();
 390             ret ++;
 391         }
 392         return ret;
 393     }
 394
 395     bool IsOpen() const
 396     {
 397         return m_branchData && m_branchData->open;
 398     }
 399
 400     void ToggleOpen()
 401     {
 402         wxCHECK_RET( m_branchData != NULL, "can't open leaf node" );
 403
 404         int sum = 0;
 405
 406         const wxDataViewTreeNodes& nodes = m_branchData->children;
 407         const int len = nodes.GetCount();
 408         for ( int i = 0;i < len; i ++)
 409             sum += 1 + nodes[i]->GetSubTreeCount();
 410
 411         if (m_branchData->open)
 412         {
 413             ChangeSubTreeCount(-sum);
 414             m_branchData->open = !m_branchData->open;
 415         }
 416         else
 417         {
 418             m_branchData->open = !m_branchData->open;
 419             ChangeSubTreeCount(+sum);
 420         }
 421     }
 422
 423     // "HasChildren" property corresponds to model's IsContainer(). Note that it may be true
 424     // even if GetChildNodes() is empty; see below.
 425     bool HasChildren() const
 426     {
 427         return m_branchData != NULL;
 428     }
 429
 430     void SetHasChildren(bool has)
 431     {
 432         if ( !has )
 433         {
 434             wxDELETE(m_branchData);
 435         }
 436         else if ( m_branchData == NULL )
 437         {
 438             m_branchData = new BranchNodeData;
 439         }
 440     }
 441
 442     int GetSubTreeCount() const
 443     {
 444         return m_branchData ? m_branchData->subTreeCount : 0;
 445     }
 446
 447     void ChangeSubTreeCount( int num )
 448     {
 449         wxASSERT( m_branchData != NULL );
 450
 451         if( !m_branchData->open )
 452             return;
 453
 454         m_branchData->subTreeCount += num;
 455         wxASSERT( m_branchData->subTreeCount >= 0 );
 456
 457         if( m_parent )
 458             m_parent->ChangeSubTreeCount(num);
 459     }
 460
 461     void Resort()
 462     {
 463         if ( !m_branchData )
 464             return;
 465
 466         if (g_column >= -1)
 467         {
 468             wxDataViewTreeNodes& nodes = m_branchData->children;
 469
 470             nodes.Sort( &wxGenericTreeModelNodeCmp );
 471             int len = nodes.GetCount();
 472             for (int i = 0; i < len; i ++)
 473             {
 474                 if ( nodes[i]->HasChildren() )
 475                     nodes[i]->Resort();
 476             }
 477         }
 478     }
 479
 480
 481 private:
 482     wxDataViewTreeNode  *m_parent;
 483
 484     // Corresponding model item.
 485     wxDataViewItem       m_item;
 486
 487     // Data specific to non-leaf (branch, inner) nodes. They are kept in a
 488     // separate struct in order to conserve memory.
 489     struct BranchNodeData
 490     {
 491         BranchNodeData()
 492             : open(false),
 493               subTreeCount(0)
 494         {
 495         }
 496
 497         // Child nodes. Note that this may be empty even if m_hasChildren in
 498         // case this branch of the tree wasn't expanded and realized yet.
 499         wxDataViewTreeNodes  children;
 500
 501         // Is the branch node currently open (expanded)?
 502         bool                 open;
 503
 504         // Total count of expanded (i.e. visible with the help of some
 505         // scrolling) items in the subtree, but excluding this node. I.e. it is
 506         // 0 for leaves and is the number of rows the subtree occupies for
 507         // branch nodes.
 508         int                  subTreeCount;
 509     };
 510
 511     BranchNodeData *m_branchData;
 512 };
 513
 514
 515 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 516                                            wxDataViewTreeNode ** node2)
 517 {
 518     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 519 }
 520
 521
 522 //-----------------------------------------------------------------------------
 523 // wxDataViewMainWindow
 524 //-----------------------------------------------------------------------------
 525
 526 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
 527
 528 class wxDataViewMainWindow: public wxWindow
 529 {
 530 public:
 531     wxDataViewMainWindow( wxDataViewCtrl *parent,
 532                             wxWindowID id,
 533                             const wxPoint &pos = wxDefaultPosition,
 534                             const wxSize &size = wxDefaultSize,
 535                             const wxString &name = wxT("wxdataviewctrlmainwindow") );
 536     virtual ~wxDataViewMainWindow();
 537
 538     bool IsList() const { return GetModel()->IsListModel(); }
 539     bool IsVirtualList() const { return m_root == NULL; }
 540
 541     // notifications from wxDataViewModel
 542     bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
 543     bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
 544     bool ItemChanged( const wxDataViewItem &item );
 545     bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
 546     bool Cleared();
 547     void Resort()
 548     {
 549         if (!IsVirtualList())
 550         {
 551             SortPrepare();
 552             m_root->Resort();
 553         }
 554         UpdateDisplay();
 555     }
 556
 557     void SortPrepare()
 558     {
 559         g_model = GetModel();
 560         wxDataViewColumn* col = GetOwner()->GetSortingColumn();
 561         if( !col )
 562         {
 563             if (g_model->HasDefaultCompare())
 564                 g_column = -1;
 565             else
 566                 g_column = -2;
 567
 568             g_asending = true;
 569             return;
 570         }
 571         g_column = col->GetModelColumn();
 572         g_asending = col->IsSortOrderAscending();
 573     }
 574
 575     void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
 576     wxDataViewCtrl *GetOwner() { return m_owner; }
 577     const wxDataViewCtrl *GetOwner() const { return m_owner; }
 578
 579     wxDataViewModel* GetModel() { return GetOwner()->GetModel(); }
 580     const wxDataViewModel* GetModel() const { return GetOwner()->GetModel(); }
 581
 582 #if wxUSE_DRAG_AND_DROP
 583     wxBitmap CreateItemBitmap( unsigned int row, int &indent );
 584 #endif // wxUSE_DRAG_AND_DROP
 585     void OnPaint( wxPaintEvent &event );
 586     void OnChar( wxKeyEvent &event );
 587     void OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event);
 588     void OnLeftKey();
 589     void OnRightKey();
 590     void OnMouse( wxMouseEvent &event );
 591     void OnSetFocus( wxFocusEvent &event );
 592     void OnKillFocus( wxFocusEvent &event );
 593
 594     void UpdateDisplay();
 595     void RecalculateDisplay();
 596     void OnInternalIdle();
 597
 598     void OnRenameTimer();
 599
 600     void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
 601     void ScrollTo( int rows, int column );
 602
 603     unsigned GetCurrentRow() const { return m_currentRow; }
 604     bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
 605     void ChangeCurrentRow( unsigned int row );
 606     bool TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward);
 607
 608     bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
 609     bool IsEmpty() { return GetRowCount() == 0; }
 610
 611     int GetCountPerPage() const;
 612     int GetEndOfLastCol() const;
 613     unsigned int GetFirstVisibleRow() const;
 614
 615     // I change this method to un const because in the tree view,
 616     // the displaying number of the tree are changing along with the
 617     // expanding/collapsing of the tree nodes
 618     unsigned int GetLastVisibleRow();
 619     unsigned int GetRowCount();
 620
 621     const wxDataViewSelection& GetSelections() const { return m_selection; }
 622     void SetSelections( const wxDataViewSelection & sel )
 623         { m_selection = sel; UpdateDisplay(); }
 624     void Select( const wxArrayInt& aSelections );
 625     void SelectAllRows( bool on );
 626     void SelectRow( unsigned int row, bool on );
 627     void SelectRows( unsigned int from, unsigned int to, bool on );
 628     void ReverseRowSelection( unsigned int row );
 629     bool IsRowSelected( unsigned int row );
 630     void SendSelectionChangedEvent( const wxDataViewItem& item);
 631
 632     void RefreshRow( unsigned int row );
 633     void RefreshRows( unsigned int from, unsigned int to );
 634     void RefreshRowsAfter( unsigned int firstRow );
 635
 636     // returns the colour to be used for drawing the rules
 637     wxColour GetRuleColour() const
 638     {
 639         return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
 640     }
 641
 642     wxRect GetLineRect( unsigned int row ) const;
 643
 644     int GetLineStart( unsigned int row ) const;  // row * m_lineHeight in fixed mode
 645     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
 646     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 647
 648     void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
 649
 650     // Some useful functions for row and item mapping
 651     wxDataViewItem GetItemByRow( unsigned int row ) const;
 652     int GetRowByItem( const wxDataViewItem & item ) const;
 653
 654     // Methods for building the mapping tree
 655     void BuildTree( wxDataViewModel  * model );
 656     void DestroyTree();
 657     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
 658     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 659
 660     void Expand( unsigned int row );
 661     void Collapse( unsigned int row );
 662     bool IsExpanded( unsigned int row ) const;
 663     bool HasChildren( unsigned int row ) const;
 664
 665 #if wxUSE_DRAG_AND_DROP
 666     bool EnableDragSource( const wxDataFormat &format );
 667     bool EnableDropTarget( const wxDataFormat &format );
 668
 669     void RemoveDropHint();
 670     wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 671     bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
 672     wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
 673     void OnLeave();
 674 #endif // wxUSE_DRAG_AND_DROP
 675
 676     void OnColumnsCountChanged();
 677
 678 private:
 679     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 680     // We did not need this temporarily
 681     // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
 682
 683     int RecalculateCount();
 684
 685     // Return false only if the event was vetoed by its handler.
 686     bool SendExpanderEvent(wxEventType type, const wxDataViewItem& item);
 687
 688     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 689
 690     wxDataViewColumn *FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode);
 691
 692 private:
 693     wxDataViewCtrl             *m_owner;
 694     int                         m_lineHeight;
 695     bool                        m_dirty;
 696
 697     wxDataViewColumn           *m_currentCol;
 698     unsigned int                m_currentRow;
 699     wxDataViewSelection         m_selection;
 700
 701     wxDataViewRenameTimer      *m_renameTimer;
 702     bool                        m_lastOnSame;
 703
 704     bool                        m_hasFocus;
 705     bool                        m_useCellFocus;
 706     bool                        m_currentColSetByKeyboard;
 707
 708 #if wxUSE_DRAG_AND_DROP
 709     int                         m_dragCount;
 710     wxPoint                     m_dragStart;
 711
 712     bool                        m_dragEnabled;
 713     wxDataFormat                m_dragFormat;
 714
 715     bool                        m_dropEnabled;
 716     wxDataFormat                m_dropFormat;
 717     bool                        m_dropHint;
 718     unsigned int                m_dropHintLine;
 719 #endif // wxUSE_DRAG_AND_DROP
 720
 721     // for double click logic
 722     unsigned int m_lineLastClicked,
 723         m_lineBeforeLastClicked,
 724         m_lineSelectSingleOnUp;
 725
 726     // the pen used to draw horiz/vertical rules
 727     wxPen m_penRule;
 728
 729     // the pen used to draw the expander and the lines
 730     wxPen m_penExpander;
 731
 732     // This is the tree structure of the model
 733     wxDataViewTreeNode * m_root;
 734     int m_count;
 735
 736     // This is the tree node under the cursor
 737     wxDataViewTreeNode * m_underMouse;
 738
 739 private:
 740     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
 741     DECLARE_EVENT_TABLE()
 742 };
 743
 744 // ---------------------------------------------------------
 745 // wxGenericDataViewModelNotifier
 746 // ---------------------------------------------------------
 747
 748 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
 749 {
 750 public:
 751     wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
 752         { m_mainWindow = mainWindow; }
 753
 754     virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
 755         { return m_mainWindow->ItemAdded( parent , item ); }
 756     virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
 757         { return m_mainWindow->ItemDeleted( parent, item ); }
 758     virtual bool ItemChanged( const wxDataViewItem & item )
 759         { return m_mainWindow->ItemChanged(item);  }
 760     virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
 761         { return m_mainWindow->ValueChanged( item, col ); }
 762     virtual bool Cleared()
 763         { return m_mainWindow->Cleared(); }
 764     virtual void Resort()
 765         { m_mainWindow->Resort(); }
 766
 767     wxDataViewMainWindow    *m_mainWindow;
 768 };
 769
 770 // ---------------------------------------------------------
 771 // wxDataViewRenderer
 772 // ---------------------------------------------------------
 773
 774 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
 775
 776 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
 777                                         wxDataViewCellMode mode,
 778                                         int align) :
 779     wxDataViewCustomRendererBase( varianttype, mode, align )
 780 {
 781     m_align = align;
 782     m_mode = mode;
 783     m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
 784     m_dc = NULL;
 785 }
 786
 787 wxDataViewRenderer::~wxDataViewRenderer()
 788 {
 789     delete m_dc;
 790 }
 791
 792 wxDC *wxDataViewRenderer::GetDC()
 793 {
 794     if (m_dc == NULL)
 795     {
 796         if (GetOwner() == NULL)
 797             return NULL;
 798         if (GetOwner()->GetOwner() == NULL)
 799             return NULL;
 800         m_dc = new wxClientDC( GetOwner()->GetOwner() );
 801     }
 802
 803     return m_dc;
 804 }
 805
 806 void wxDataViewRenderer::SetAlignment( int align )
 807 {
 808     m_align=align;
 809 }
 810
 811 int wxDataViewRenderer::GetAlignment() const
 812 {
 813     return m_align;
 814 }
 815
 816 // ---------------------------------------------------------
 817 // wxDataViewCustomRenderer
 818 // ---------------------------------------------------------
 819
 820 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 821
 822 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 823                         wxDataViewCellMode mode, int align ) :
 824     wxDataViewRenderer( varianttype, mode, align )
 825 {
 826 }
 827
 828 // ---------------------------------------------------------
 829 // wxDataViewTextRenderer
 830 // ---------------------------------------------------------
 831
 832 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
 833
 834 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
 835                                                 wxDataViewCellMode mode, int align ) :
 836     wxDataViewRenderer( varianttype, mode, align )
 837 {
 838 }
 839
 840 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
 841 {
 842     m_text = value.GetString();
 843
 844     return true;
 845 }
 846
 847 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 848 {
 849     return false;
 850 }
 851
 852 bool wxDataViewTextRenderer::HasEditorCtrl() const
 853 {
 854     return true;
 855 }
 856
 857 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
 858         wxRect labelRect, const wxVariant &value )
 859 {
 860     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
 861                                        wxPoint(labelRect.x,labelRect.y),
 862                                        wxSize(labelRect.width,labelRect.height),
 863                                        wxTE_PROCESS_ENTER );
 864
 865     // select the text in the control an place the cursor at the end
 866     ctrl->SetInsertionPointEnd();
 867     ctrl->SelectAll();
 868
 869     return ctrl;
 870 }
 871
 872 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
 873 {
 874     wxTextCtrl *text = (wxTextCtrl*) editor;
 875     value = text->GetValue();
 876     return true;
 877 }
 878
 879 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 880 {
 881     RenderText(m_text, 0, rect, dc, state);
 882     return true;
 883 }
 884
 885 wxSize wxDataViewTextRenderer::GetSize() const
 886 {
 887     if (!m_text.empty())
 888         return GetTextExtent(m_text);
 889     else
 890         return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 891 }
 892
 893 // ---------------------------------------------------------
 894 // wxDataViewBitmapRenderer
 895 // ---------------------------------------------------------
 896
 897 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
 898
 899 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
 900                                                     wxDataViewCellMode mode, int align ) :
 901     wxDataViewRenderer( varianttype, mode, align )
 902 {
 903 }
 904
 905 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
 906 {
 907     if (value.GetType() == wxT("wxBitmap"))
 908         m_bitmap << value;
 909     if (value.GetType() == wxT("wxIcon"))
 910         m_icon << value;
 911
 912     return true;
 913 }
 914
 915 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
 916 {
 917     return false;
 918 }
 919
 920 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 921 {
 922     if (m_bitmap.IsOk())
 923         dc->DrawBitmap( m_bitmap, cell.x, cell.y );
 924     else if (m_icon.IsOk())
 925         dc->DrawIcon( m_icon, cell.x, cell.y );
 926
 927     return true;
 928 }
 929
 930 wxSize wxDataViewBitmapRenderer::GetSize() const
 931 {
 932     if (m_bitmap.IsOk())
 933         return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
 934     else if (m_icon.IsOk())
 935         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 936
 937     return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
 938 }
 939
 940 // ---------------------------------------------------------
 941 // wxDataViewToggleRenderer
 942 // ---------------------------------------------------------
 943
 944 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
 945
 946 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
 947                         wxDataViewCellMode mode, int align ) :
 948     wxDataViewRenderer( varianttype, mode, align )
 949 {
 950     m_toggle = false;
 951 }
 952
 953 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
 954 {
 955     m_toggle = value.GetBool();
 956
 957     return true;
 958 }
 959
 960 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 961 {
 962     return false;
 963 }
 964
 965 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 966 {
 967     int flags = 0;
 968     if (m_toggle)
 969         flags |= wxCONTROL_CHECKED;
 970     if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
 971         GetEnabled() == false)
 972         flags |= wxCONTROL_DISABLED;
 973
 974     // check boxes we draw must always have the same, standard size (if it's
 975     // bigger than the cell size the checkbox will be truncated because the
 976     // caller had set the clipping rectangle to prevent us from drawing outside
 977     // the cell)
 978     cell.SetSize(GetSize());
 979
 980     wxRendererNative::Get().DrawCheckBox(
 981             GetOwner()->GetOwner(),
 982             *dc,
 983             cell,
 984             flags );
 985
 986     return true;
 987 }
 988
 989 bool wxDataViewToggleRenderer::WXActivateCell(const wxRect& WXUNUSED(cell),
 990                                               wxDataViewModel *model,
 991                                               const wxDataViewItem& item,
 992                                               unsigned int col,
 993                                               const wxMouseEvent *mouseEvent)
 994 {
 995     if ( !model->IsEnabled(item, col) )
 996         return false;
 997
 998     if ( mouseEvent )
 999     {
1000         // only react to clicks directly on the checkbox, not elsewhere in the same cell:
1001         if ( !wxRect(GetSize()).Contains(mouseEvent->GetPosition()) )
1002             return false;
1003     }
1004
1005     model->ChangeValue(!m_toggle, item, col);
1006     return true;
1007 }
1008
1009 wxSize wxDataViewToggleRenderer::GetSize() const
1010 {
1011     // the window parameter is not used by GetCheckBoxSize() so it's
1012     // safe to pass NULL
1013     return wxRendererNative::Get().GetCheckBoxSize(NULL);
1014 }
1015
1016 // ---------------------------------------------------------
1017 // wxDataViewProgressRenderer
1018 // ---------------------------------------------------------
1019
1020 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
1021
1022 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
1023     const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1024     wxDataViewRenderer( varianttype, mode, align )
1025 {
1026     m_label = label;
1027     m_value = 0;
1028 }
1029
1030 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
1031 {
1032     m_value = (long) value;
1033
1034     if (m_value < 0) m_value = 0;
1035     if (m_value > 100) m_value = 100;
1036
1037     return true;
1038 }
1039
1040 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
1041 {
1042     value = (long) m_value;
1043     return true;
1044 }
1045
1046 bool
1047 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
1048 {
1049     // deflate the rect to leave a small border between bars in adjacent rows
1050     wxRect bar = rect.Deflate(0, 1);
1051
1052     dc->SetBrush( *wxTRANSPARENT_BRUSH );
1053     dc->SetPen( *wxBLACK_PEN );
1054     dc->DrawRectangle( bar );
1055
1056     bar.width = (int)(bar.width * m_value / 100.);
1057     dc->SetPen( *wxTRANSPARENT_PEN );
1058
1059     const wxDataViewItemAttr& attr = GetAttr();
1060     dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
1061                                   : *wxBLUE_BRUSH );
1062     dc->DrawRectangle( bar );
1063
1064     return true;
1065 }
1066
1067 wxSize wxDataViewProgressRenderer::GetSize() const
1068 {
1069     return wxSize(40,12);
1070 }
1071
1072 // ---------------------------------------------------------
1073 // wxDataViewIconTextRenderer
1074 // ---------------------------------------------------------
1075
1076 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1077
1078 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1079 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1080     wxDataViewRenderer( varianttype, mode, align )
1081 {
1082     SetMode(mode);
1083     SetAlignment(align);
1084 }
1085
1086 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1087 {
1088     m_value << value;
1089     return true;
1090 }
1091
1092 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1093 {
1094     return false;
1095 }
1096
1097 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1098 {
1099     int xoffset = 0;
1100
1101     const wxIcon& icon = m_value.GetIcon();
1102     if ( icon.IsOk() )
1103     {
1104         dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1105         xoffset = icon.GetWidth()+4;
1106     }
1107
1108     RenderText(m_value.GetText(), xoffset, rect, dc, state);
1109
1110     return true;
1111 }
1112
1113 wxSize wxDataViewIconTextRenderer::GetSize() const
1114 {
1115     if (!m_value.GetText().empty())
1116     {
1117         wxSize size = GetTextExtent(m_value.GetText());
1118
1119         if (m_value.GetIcon().IsOk())
1120             size.x += m_value.GetIcon().GetWidth() + 4;
1121         return size;
1122     }
1123     return wxSize(80,20);
1124 }
1125
1126 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1127 {
1128     wxDataViewIconText iconText;
1129     iconText << value;
1130
1131     wxString text = iconText.GetText();
1132
1133     // adjust the label rect to take the width of the icon into account
1134     if (iconText.GetIcon().IsOk())
1135     {
1136         int w = iconText.GetIcon().GetWidth() + 4;
1137         labelRect.x += w;
1138         labelRect.width -= w;
1139     }
1140
1141     wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1142                                        wxPoint(labelRect.x,labelRect.y),
1143                                        wxSize(labelRect.width,labelRect.height),
1144                                        wxTE_PROCESS_ENTER );
1145
1146     // select the text in the control an place the cursor at the end
1147     ctrl->SetInsertionPointEnd();
1148     ctrl->SelectAll();
1149
1150     return ctrl;
1151 }
1152
1153 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1154 {
1155     wxTextCtrl *text = (wxTextCtrl*) editor;
1156
1157     wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
1158     value << iconText;
1159     return true;
1160 }
1161
1162 //-----------------------------------------------------------------------------
1163 // wxDataViewDropTarget
1164 //-----------------------------------------------------------------------------
1165
1166 #if wxUSE_DRAG_AND_DROP
1167
1168 class wxBitmapCanvas: public wxWindow
1169 {
1170 public:
1171     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1172     wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1173     {
1174         m_bitmap = bitmap;
1175         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1176     }
1177
1178     void OnPaint( wxPaintEvent &WXUNUSED(event) )
1179     {
1180         wxPaintDC dc(this);
1181         dc.DrawBitmap( m_bitmap, 0, 0);
1182     }
1183
1184     wxBitmap m_bitmap;
1185 };
1186
1187 class wxDataViewDropSource: public wxDropSource
1188 {
1189 public:
1190     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1191         wxDropSource( win )
1192     {
1193         m_win = win;
1194         m_row = row;
1195         m_hint = NULL;
1196     }
1197
1198     ~wxDataViewDropSource()
1199     {
1200         delete m_hint;
1201     }
1202
1203     virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1204     {
1205         wxPoint pos = wxGetMousePosition();
1206
1207         if (!m_hint)
1208         {
1209             int liney = m_win->GetLineStart( m_row );
1210             int linex = 0;
1211             m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1212             m_win->ClientToScreen( &linex, &liney );
1213             m_dist_x = pos.x - linex;
1214             m_dist_y = pos.y - liney;
1215
1216             int indent = 0;
1217             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1218             m_dist_x -= indent;
1219             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1220                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1221                                         ib.GetSize(),
1222                                         wxFRAME_TOOL_WINDOW |
1223                                         wxFRAME_FLOAT_ON_PARENT |
1224                                         wxFRAME_NO_TASKBAR |
1225                                         wxNO_BORDER );
1226             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1227             m_hint->Show();
1228         }
1229         else
1230         {
1231             m_hint->Move( pos.x - m_dist_x, pos.y + 5  );
1232             m_hint->SetTransparent( 128 );
1233         }
1234
1235         return false;
1236     }
1237
1238     wxDataViewMainWindow   *m_win;
1239     unsigned int            m_row;
1240     wxFrame                *m_hint;
1241     int m_dist_x,m_dist_y;
1242 };
1243
1244
1245 class wxDataViewDropTarget: public wxDropTarget
1246 {
1247 public:
1248     wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1249         wxDropTarget( obj )
1250     {
1251         m_win = win;
1252     }
1253
1254     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1255     {
1256         wxDataFormat format = GetMatchingPair();
1257         if (format == wxDF_INVALID)
1258             return wxDragNone;
1259         return m_win->OnDragOver( format, x, y, def);
1260     }
1261
1262     virtual bool OnDrop( wxCoord x, wxCoord y )
1263     {
1264         wxDataFormat format = GetMatchingPair();
1265         if (format == wxDF_INVALID)
1266             return false;
1267         return m_win->OnDrop( format, x, y );
1268     }
1269
1270     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1271     {
1272         wxDataFormat format = GetMatchingPair();
1273         if (format == wxDF_INVALID)
1274             return wxDragNone;
1275         if (!GetData())
1276             return wxDragNone;
1277         return m_win->OnData( format, x, y, def );
1278     }
1279
1280     virtual void OnLeave()
1281         { m_win->OnLeave(); }
1282
1283     wxDataViewMainWindow   *m_win;
1284 };
1285
1286 #endif // wxUSE_DRAG_AND_DROP
1287
1288 //-----------------------------------------------------------------------------
1289 // wxDataViewRenameTimer
1290 //-----------------------------------------------------------------------------
1291
1292 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1293 {
1294     m_owner = owner;
1295 }
1296
1297 void wxDataViewRenameTimer::Notify()
1298 {
1299     m_owner->OnRenameTimer();
1300 }
1301
1302 //-----------------------------------------------------------------------------
1303 // wxDataViewMainWindow
1304 //-----------------------------------------------------------------------------
1305
1306 // The tree building helper, declared firstly
1307 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
1308                              wxDataViewTreeNode * node);
1309
1310 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1311 {
1312     if (row1 > row2) return 1;
1313     if (row1 == row2) return 0;
1314     return -1;
1315 }
1316
1317 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1318
1319 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1320     EVT_PAINT         (wxDataViewMainWindow::OnPaint)
1321     EVT_MOUSE_EVENTS  (wxDataViewMainWindow::OnMouse)
1322     EVT_SET_FOCUS     (wxDataViewMainWindow::OnSetFocus)
1323     EVT_KILL_FOCUS    (wxDataViewMainWindow::OnKillFocus)
1324     EVT_CHAR          (wxDataViewMainWindow::OnChar)
1325 END_EVENT_TABLE()
1326
1327 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1328     const wxPoint &pos, const wxSize &size, const wxString &name ) :
1329     wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1330     m_selection( wxDataViewSelectionCmp )
1331
1332 {
1333     SetOwner( parent );
1334
1335     m_lastOnSame = false;
1336     m_renameTimer = new wxDataViewRenameTimer( this );
1337
1338     // TODO: user better initial values/nothing selected
1339     m_currentCol = NULL;
1340     m_currentColSetByKeyboard = false;
1341     m_useCellFocus = false;
1342     m_currentRow = 0;
1343
1344     m_lineHeight = wxMax( 17, GetCharHeight() + 2 ); // 17 = mini icon height + 1
1345
1346 #if wxUSE_DRAG_AND_DROP
1347     m_dragCount = 0;
1348     m_dragStart = wxPoint(0,0);
1349
1350     m_dragEnabled = false;
1351     m_dropEnabled = false;
1352     m_dropHint = false;
1353     m_dropHintLine = (unsigned int) -1;
1354 #endif // wxUSE_DRAG_AND_DROP
1355
1356     m_lineLastClicked = (unsigned int) -1;
1357     m_lineBeforeLastClicked = (unsigned int) -1;
1358     m_lineSelectSingleOnUp = (unsigned int) -1;
1359
1360     m_hasFocus = false;
1361
1362     SetBackgroundColour( *wxWHITE );
1363
1364     SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1365
1366     m_penRule = wxPen(GetRuleColour());
1367
1368     // compose a pen whichcan draw black lines
1369     // TODO: maybe there is something system colour to use
1370     m_penExpander = wxPen(wxColour(0,0,0));
1371
1372     m_root = wxDataViewTreeNode::CreateRootNode();
1373
1374     // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1375     m_count = -1;
1376     m_underMouse = NULL;
1377     UpdateDisplay();
1378 }
1379
1380 wxDataViewMainWindow::~wxDataViewMainWindow()
1381 {
1382     DestroyTree();
1383     delete m_renameTimer;
1384 }
1385
1386
1387 #if wxUSE_DRAG_AND_DROP
1388 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1389 {
1390     m_dragFormat = format;
1391     m_dragEnabled = format != wxDF_INVALID;
1392
1393     return true;
1394 }
1395
1396 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1397 {
1398     m_dropFormat = format;
1399     m_dropEnabled = format != wxDF_INVALID;
1400
1401     if (m_dropEnabled)
1402         SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1403
1404     return true;
1405 }
1406
1407 void wxDataViewMainWindow::RemoveDropHint()
1408 {
1409     if (m_dropHint)
1410     {
1411             m_dropHint = false;
1412             RefreshRow( m_dropHintLine );
1413             m_dropHintLine = (unsigned int) -1;
1414     }
1415 }
1416
1417 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1418                                                wxCoord y, wxDragResult def )
1419 {
1420     int xx = x;
1421     int yy = y;
1422     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1423     unsigned int row = GetLineAt( yy );
1424
1425     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1426     {
1427         RemoveDropHint();
1428         return wxDragNone;
1429     }
1430
1431     wxDataViewItem item = GetItemByRow( row );
1432
1433     wxDataViewModel *model = GetModel();
1434
1435     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1436     event.SetEventObject( m_owner );
1437     event.SetItem( item );
1438     event.SetModel( model );
1439     event.SetDataFormat( format );
1440     if (!m_owner->HandleWindowEvent( event ))
1441     {
1442         RemoveDropHint();
1443         return wxDragNone;
1444     }
1445
1446     if (!event.IsAllowed())
1447     {
1448         RemoveDropHint();
1449         return wxDragNone;
1450     }
1451
1452
1453     if (m_dropHint && (row != m_dropHintLine))
1454         RefreshRow( m_dropHintLine );
1455     m_dropHint = true;
1456     m_dropHintLine = row;
1457     RefreshRow( row );
1458
1459     return def;
1460 }
1461
1462 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1463 {
1464     RemoveDropHint();
1465
1466     int xx = x;
1467     int yy = y;
1468     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1469     unsigned int row = GetLineAt( yy );
1470
1471     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1472         return false;
1473
1474     wxDataViewItem item = GetItemByRow( row );
1475
1476     wxDataViewModel *model = GetModel();
1477
1478     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1479     event.SetEventObject( m_owner );
1480     event.SetItem( item );
1481     event.SetModel( model );
1482     event.SetDataFormat( format );
1483     if (!m_owner->HandleWindowEvent( event ))
1484         return false;
1485
1486     if (!event.IsAllowed())
1487         return false;
1488
1489     return true;
1490 }
1491
1492 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1493                                            wxDragResult def )
1494 {
1495     int xx = x;
1496     int yy = y;
1497     m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1498     unsigned int row = GetLineAt( yy );
1499
1500     if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1501         return wxDragNone;
1502
1503     wxDataViewItem item = GetItemByRow( row );
1504
1505     wxDataViewModel *model = GetModel();
1506
1507     wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1508
1509     wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1510     event.SetEventObject( m_owner );
1511     event.SetItem( item );
1512     event.SetModel( model );
1513     event.SetDataFormat( format );
1514     event.SetDataSize( obj->GetSize() );
1515     event.SetDataBuffer( obj->GetData() );
1516     if (!m_owner->HandleWindowEvent( event ))
1517         return wxDragNone;
1518
1519     if (!event.IsAllowed())
1520         return wxDragNone;
1521
1522     return def;
1523 }
1524
1525 void wxDataViewMainWindow::OnLeave()
1526 {
1527     RemoveDropHint();
1528 }
1529
1530 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1531 {
1532     int height = GetLineHeight( row );
1533     int width = 0;
1534     unsigned int cols = GetOwner()->GetColumnCount();
1535     unsigned int col;
1536     for (col = 0; col < cols; col++)
1537     {
1538         wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1539         if (column->IsHidden())
1540             continue;      // skip it!
1541         width += column->GetWidth();
1542     }
1543
1544     indent = 0;
1545     if (!IsList())
1546     {
1547         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1548         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1549         indent = indent + m_lineHeight;
1550             // try to use the m_lineHeight as the expander space
1551     }
1552     width -= indent;
1553
1554     wxBitmap bitmap( width, height );
1555     wxMemoryDC dc( bitmap );
1556     dc.SetFont( GetFont() );
1557     dc.SetPen( *wxBLACK_PEN );
1558     dc.SetBrush( *wxWHITE_BRUSH );
1559     dc.DrawRectangle( 0,0,width,height );
1560
1561     wxDataViewModel *model = m_owner->GetModel();
1562
1563     wxDataViewColumn * const
1564         expander = GetExpanderColumnOrFirstOne(GetOwner());
1565
1566     int x = 0;
1567     for (col = 0; col < cols; col++)
1568     {
1569         wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1570         wxDataViewRenderer *cell = column->GetRenderer();
1571
1572         if (column->IsHidden())
1573             continue;       // skip it!
1574
1575         width = column->GetWidth();
1576
1577         if (column == expander)
1578             width -= indent;
1579
1580         wxDataViewItem item = GetItemByRow( row );
1581         cell->PrepareForItem(model, item, column->GetModelColumn());
1582
1583         wxRect item_rect(x, 0, width, height);
1584         item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1585
1586         // dc.SetClippingRegion( item_rect );
1587         cell->WXCallRender(item_rect, &dc, 0);
1588         // dc.DestroyClippingRegion();
1589
1590         x += width;
1591     }
1592
1593     return bitmap;
1594 }
1595
1596 #endif // wxUSE_DRAG_AND_DROP
1597
1598
1599 // Draw focus rect for individual cell. Unlike native focus rect, we render
1600 // this in foreground text color (typically white) to enhance contrast and
1601 // make it visible.
1602 static void DrawSelectedCellFocusRect(wxDC& dc, const wxRect& rect)
1603 {
1604     // (This code is based on wxRendererGeneric::DrawFocusRect and modified.)
1605
1606     // draw the pixels manually because the "dots" in wxPen with wxDOT style
1607     // may be short traits and not really dots
1608     //
1609     // note that to behave in the same manner as DrawRect(), we must exclude
1610     // the bottom and right borders from the rectangle
1611     wxCoord x1 = rect.GetLeft(),
1612             y1 = rect.GetTop(),
1613             x2 = rect.GetRight(),
1614             y2 = rect.GetBottom();
1615
1616     wxDCPenChanger pen(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
1617
1618     wxCoord z;
1619     for ( z = x1 + 1; z < x2; z += 2 )
1620         dc.DrawPoint(z, rect.GetTop());
1621
1622     wxCoord shift = z == x2 ? 0 : 1;
1623     for ( z = y1 + shift; z < y2; z += 2 )
1624         dc.DrawPoint(x2, z);
1625
1626     shift = z == y2 ? 0 : 1;
1627     for ( z = x2 - shift; z > x1; z -= 2 )
1628         dc.DrawPoint(z, y2);
1629
1630     shift = z == x1 ? 0 : 1;
1631     for ( z = y2 - shift; z > y1; z -= 2 )
1632         dc.DrawPoint(x1, z);
1633 }
1634
1635
1636 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1637 {
1638     wxDataViewModel *model = GetModel();
1639     wxAutoBufferedPaintDC dc( this );
1640
1641 #ifdef __WXMSW__
1642     dc.SetBrush(GetOwner()->GetBackgroundColour());
1643     dc.SetPen( *wxTRANSPARENT_PEN );
1644     dc.DrawRectangle(GetClientSize());
1645 #endif
1646
1647     if ( IsEmpty() )
1648     {
1649         // No items to draw.
1650         return;
1651     }
1652
1653     // prepare the DC
1654     GetOwner()->PrepareDC( dc );
1655     dc.SetFont( GetFont() );
1656
1657     wxRect update = GetUpdateRegion().GetBox();
1658     m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1659
1660     // compute which items needs to be redrawn
1661     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1662     unsigned int item_count =
1663         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1664             (int)(GetRowCount( ) - item_start));
1665     unsigned int item_last = item_start + item_count;
1666
1667     // Send the event to wxDataViewCtrl itself.
1668     wxWindow * const parent = GetParent();
1669     wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
1670     cache_event.SetEventObject(parent);
1671     cache_event.SetCache(item_start, item_last - 1);
1672     parent->ProcessWindowEvent(cache_event);
1673
1674     // compute which columns needs to be redrawn
1675     unsigned int cols = GetOwner()->GetColumnCount();
1676     if ( !cols )
1677     {
1678         // we assume that we have at least one column below and painting an
1679         // empty control is unnecessary anyhow
1680         return;
1681     }
1682
1683     unsigned int col_start = 0;
1684     unsigned int x_start;
1685     for (x_start = 0; col_start < cols; col_start++)
1686     {
1687         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1688         if (col->IsHidden())
1689             continue;      // skip it!
1690
1691         unsigned int w = col->GetWidth();
1692         if (x_start+w >= (unsigned int)update.x)
1693             break;
1694
1695         x_start += w;
1696     }
1697
1698     unsigned int col_last = col_start;
1699     unsigned int x_last = x_start;
1700     for (; col_last < cols; col_last++)
1701     {
1702         wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1703         if (col->IsHidden())
1704             continue;      // skip it!
1705
1706         if (x_last > (unsigned int)update.GetRight())
1707             break;
1708
1709         x_last += col->GetWidth();
1710     }
1711
1712     // Draw horizontal rules if required
1713     if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1714     {
1715         dc.SetPen(m_penRule);
1716         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1717
1718         for (unsigned int i = item_start; i <= item_last; i++)
1719         {
1720             int y = GetLineStart( i );
1721             dc.DrawLine(x_start, y, x_last, y);
1722         }
1723     }
1724
1725     // Draw vertical rules if required
1726     if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1727     {
1728         dc.SetPen(m_penRule);
1729         dc.SetBrush(*wxTRANSPARENT_BRUSH);
1730
1731         // NB: Vertical rules are drawn in the last pixel of a column so that
1732         //     they align perfectly with native MSW wxHeaderCtrl as well as for
1733         //     consistency with MSW native list control. There's no vertical
1734         //     rule at the most-left side of the control.
1735
1736         int x = x_start - 1;
1737         for (unsigned int i = col_start; i < col_last; i++)
1738         {
1739             wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1740             if (col->IsHidden())
1741                 continue;       // skip it
1742
1743             x += col->GetWidth();
1744
1745             dc.DrawLine(x, GetLineStart( item_start ),
1746                         x, GetLineStart( item_last ) );
1747         }
1748     }
1749
1750     // redraw the background for the items which are selected/current
1751     for (unsigned int item = item_start; item < item_last; item++)
1752     {
1753         bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1754
1755         if (selected || item == m_currentRow)
1756         {
1757             wxRect rect( x_start, GetLineStart( item ),
1758                          x_last - x_start, GetLineHeight( item ) );
1759
1760             // draw selection and whole-item focus:
1761             if ( selected )
1762             {
1763                 int flags = wxCONTROL_SELECTED;
1764                 if (m_hasFocus)
1765                     flags |= wxCONTROL_FOCUSED;
1766
1767                 wxRendererNative::Get().DrawItemSelectionRect
1768                                     (
1769                                         this,
1770                                         dc,
1771                                         rect,
1772                                         flags
1773                                     );
1774             }
1775
1776             // draw keyboard focus rect if applicable
1777             if ( item == m_currentRow && m_hasFocus )
1778             {
1779                 bool renderColumnFocus = false;
1780
1781                 if ( m_useCellFocus && m_currentCol && m_currentColSetByKeyboard )
1782                 {
1783                     renderColumnFocus = true;
1784
1785                     // If this is container node without columns, render full-row focus:
1786                     if ( !IsList() )
1787                     {
1788                         wxDataViewTreeNode *node = GetTreeNodeByRow(item);
1789                         if ( node->HasChildren() && !model->HasContainerColumns(node->GetItem()) )
1790                             renderColumnFocus = false;
1791                     }
1792                 }
1793
1794                 if ( renderColumnFocus )
1795                 {
1796                     for ( unsigned int i = col_start; i < col_last; i++ )
1797                     {
1798                         wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1799                         if ( col->IsHidden() )
1800                             continue;
1801
1802                         rect.width = col->GetWidth();
1803
1804                         if ( col == m_currentCol )
1805                         {
1806                             // make the rect more visible by adding a small
1807                             // margin around it:
1808                             rect.Deflate(1, 1);
1809
1810                             if ( selected )
1811                             {
1812                                 // DrawFocusRect() uses XOR and is all but
1813                                 // invisible against dark-blue background. Use
1814                                 // the same color used for selected text.
1815                                 DrawSelectedCellFocusRect(dc, rect);
1816                             }
1817                             else
1818                             {
1819                                 wxRendererNative::Get().DrawFocusRect
1820                                                     (
1821                                                         this,
1822                                                         dc,
1823                                                         rect,
1824                                                         0
1825                                                 );
1826                             }
1827                             break;
1828                         }
1829
1830                         rect.x += rect.width;
1831                     }
1832                 }
1833                 else
1834                 {
1835                     // render focus rectangle for the whole row
1836                     wxRendererNative::Get().DrawFocusRect
1837                                         (
1838                                             this,
1839                                             dc,
1840                                             rect,
1841                                             selected ? (int)wxCONTROL_SELECTED : 0
1842                                         );
1843                 }
1844             }
1845         }
1846     }
1847
1848 #if wxUSE_DRAG_AND_DROP
1849     if (m_dropHint)
1850     {
1851         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
1852                      x_last - x_start, GetLineHeight( m_dropHintLine ) );
1853         dc.SetPen( *wxBLACK_PEN );
1854         dc.SetBrush( *wxTRANSPARENT_BRUSH );
1855         dc.DrawRectangle( rect );
1856     }
1857 #endif // wxUSE_DRAG_AND_DROP
1858
1859     wxDataViewColumn * const
1860         expander = GetExpanderColumnOrFirstOne(GetOwner());
1861
1862     // redraw all cells for all rows which must be repainted and all columns
1863     wxRect cell_rect;
1864     cell_rect.x = x_start;
1865     for (unsigned int i = col_start; i < col_last; i++)
1866     {
1867         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
1868         wxDataViewRenderer *cell = col->GetRenderer();
1869         cell_rect.width = col->GetWidth();
1870
1871         if ( col->IsHidden() || cell_rect.width <= 0 )
1872             continue;       // skip it!
1873
1874         for (unsigned int item = item_start; item < item_last; item++)
1875         {
1876             // get the cell value and set it into the renderer
1877             wxDataViewTreeNode *node = NULL;
1878             wxDataViewItem dataitem;
1879
1880             if (!IsVirtualList())
1881             {
1882                 node = GetTreeNodeByRow(item);
1883                 if( node == NULL )
1884                     continue;
1885
1886                 dataitem = node->GetItem();
1887
1888                 // Skip all columns of "container" rows except the expander
1889                 // column itself unless HasContainerColumns() overrides this.
1890                 if ( col != expander &&
1891                         model->IsContainer(dataitem) &&
1892                             !model->HasContainerColumns(dataitem) )
1893                     continue;
1894             }
1895             else
1896             {
1897                 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
1898             }
1899
1900             cell->PrepareForItem(model, dataitem, col->GetModelColumn());
1901
1902             // update cell_rect
1903             cell_rect.y = GetLineStart( item );
1904             cell_rect.height = GetLineHeight( item );
1905
1906             // deal with the expander
1907             int indent = 0;
1908             if ((!IsList()) && (col == expander))
1909             {
1910                 // Calculate the indent first
1911                 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1912
1913                 // we reserve m_lineHeight of horizontal space for the expander
1914                 // but leave EXPANDER_MARGIN around the expander itself
1915                 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
1916
1917                 indent += m_lineHeight;
1918
1919                 // draw expander if needed and visible
1920                 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
1921                 {
1922                     dc.SetPen( m_penExpander );
1923                     dc.SetBrush( wxNullBrush );
1924
1925                     int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
1926                     int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
1927                                    + EXPANDER_MARGIN - EXPANDER_OFFSET;
1928
1929                     const wxRect rect(exp_x, exp_y, exp_size, exp_size);
1930
1931                     int flag = 0;
1932                     if ( m_underMouse == node )
1933                         flag |= wxCONTROL_CURRENT;
1934                     if ( node->IsOpen() )
1935                         flag |= wxCONTROL_EXPANDED;
1936
1937                     // ensure that we don't overflow the cell (which might
1938                     // happen if the column is very narrow)
1939                     wxDCClipper clip(dc, cell_rect);
1940
1941                     wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
1942                 }
1943
1944                 // force the expander column to left-center align
1945                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
1946             }
1947
1948             wxRect item_rect = cell_rect;
1949             item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1950
1951             // account for the tree indent (harmless if we're not indented)
1952             item_rect.x += indent;
1953             item_rect.width -= indent;
1954
1955             if ( item_rect.width <= 0 )
1956                 continue;
1957
1958             int state = 0;
1959             if (m_hasFocus && (m_selection.Index(item) != wxNOT_FOUND))
1960                 state |= wxDATAVIEW_CELL_SELECTED;
1961
1962             // TODO: it would be much more efficient to create a clipping
1963             //       region for the entire column being rendered (in the OnPaint
1964             //       of wxDataViewMainWindow) instead of a single clip region for
1965             //       each cell. However it would mean that each renderer should
1966             //       respect the given wxRect's top & bottom coords, eventually
1967             //       violating only the left & right coords - however the user can
1968             //       make its own renderer and thus we cannot be sure of that.
1969             wxDCClipper clip(dc, item_rect);
1970
1971             cell->WXCallRender(item_rect, &dc, state);
1972         }
1973
1974         cell_rect.x += cell_rect.width;
1975     }
1976 }
1977
1978 void wxDataViewMainWindow::OnRenameTimer()
1979 {
1980     // We have to call this here because changes may just have
1981     // been made and no screen update taken place.
1982     if ( m_dirty )
1983     {
1984         // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
1985         //       (needs to be tested!)
1986         wxSafeYield();
1987     }
1988
1989     wxDataViewItem item = GetItemByRow( m_currentRow );
1990
1991     wxRect labelRect = GetItemRect(item, m_currentCol);
1992
1993     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
1994 }
1995
1996 //-----------------------------------------------------------------------------
1997 // Helper class for do operation on the tree node
1998 //-----------------------------------------------------------------------------
1999 class DoJob
2000 {
2001 public:
2002     DoJob() { }
2003     virtual ~DoJob() { }
2004
2005     // The return value control how the tree-walker tranverse the tree
2006     enum
2007     {
2008         DONE,          // Job done, stop traversing and return
2009         SKIP_SUBTREE,  // Ignore the current node's subtree and continue
2010         CONTINUE       // Job not done, continue
2011     };
2012
2013     virtual int operator() ( wxDataViewTreeNode * node ) = 0;
2014 };
2015
2016 bool Walker( wxDataViewTreeNode * node, DoJob & func )
2017 {
2018     wxCHECK_MSG( node, false, "can't walk NULL node" );
2019
2020     switch( func( node ) )
2021     {
2022         case DoJob::DONE:
2023             return true;
2024         case DoJob::SKIP_SUBTREE:
2025             return false;
2026         case DoJob::CONTINUE:
2027             break;
2028     }
2029
2030     if ( node->HasChildren() )
2031     {
2032         const wxDataViewTreeNodes& nodes = node->GetChildNodes();
2033
2034         for ( wxDataViewTreeNodes::const_iterator i = nodes.begin();
2035               i != nodes.end();
2036               ++i )
2037         {
2038             if ( Walker(*i, func) )
2039                 return true;
2040         }
2041     }
2042
2043     return false;
2044 }
2045
2046 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
2047 {
2048     if (IsVirtualList())
2049     {
2050         wxDataViewVirtualListModel *list_model =
2051             (wxDataViewVirtualListModel*) GetModel();
2052         m_count = list_model->GetCount();
2053     }
2054     else
2055     {
2056         SortPrepare();
2057
2058         wxDataViewTreeNode *parentNode = FindNode(parent);
2059
2060         if ( !parentNode )
2061             return false;
2062
2063         wxDataViewItemArray siblings;
2064         GetModel()->GetChildren(parent, siblings);
2065         int itemPos = siblings.Index(item, /*fromEnd=*/true);
2066         wxCHECK_MSG( itemPos != wxNOT_FOUND, false, "adding non-existent item?" );
2067
2068         wxDataViewTreeNode *itemNode = new wxDataViewTreeNode(parentNode, item);
2069         itemNode->SetHasChildren(GetModel()->IsContainer(item));
2070
2071         parentNode->SetHasChildren(true);
2072         parentNode->InsertChild(itemNode, itemPos);
2073         parentNode->ChangeSubTreeCount(+1);
2074
2075         m_count = -1;
2076     }
2077
2078     GetOwner()->InvalidateColBestWidths();
2079     UpdateDisplay();
2080
2081     return true;
2082 }
2083
2084 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2085                                        const wxDataViewItem& item)
2086 {
2087     if (IsVirtualList())
2088     {
2089         wxDataViewVirtualListModel *list_model =
2090             (wxDataViewVirtualListModel*) GetModel();
2091         m_count = list_model->GetCount();
2092
2093         if ( !m_selection.empty() )
2094         {
2095             const int row = GetRowByItem(item);
2096
2097             int rowIndexInSelection = wxNOT_FOUND;
2098
2099             const size_t selCount = m_selection.size();
2100             for ( size_t i = 0; i < selCount; i++ )
2101             {
2102                 if ( m_selection[i] == (unsigned)row )
2103                     rowIndexInSelection = i;
2104                 else if ( m_selection[i] > (unsigned)row )
2105                     m_selection[i]--;
2106             }
2107
2108             if ( rowIndexInSelection != wxNOT_FOUND )
2109                 m_selection.RemoveAt(rowIndexInSelection);
2110         }
2111
2112     }
2113     else // general case
2114     {
2115         wxDataViewTreeNode *parentNode = FindNode(parent);
2116
2117         // Notice that it is possible that the item being deleted is not in the
2118         // tree at all, for example we could be deleting a never shown (because
2119         // collapsed) item in a tree model. So it's not an error if we don't know
2120         // about this item, just return without doing anything then.
2121         if ( !parentNode )
2122             return true;
2123
2124         wxCHECK_MSG( parentNode->HasChildren(), false, "parent node doesn't have children?" );
2125         const wxDataViewTreeNodes& parentsChildren = parentNode->GetChildNodes();
2126
2127         // We can't use FindNode() to find 'item', because it was already
2128         // removed from the model by the time ItemDeleted() is called, so we
2129         // have to do it manually. We keep track of its position as well for
2130         // later use.
2131         int itemPosInNode = 0;
2132         wxDataViewTreeNode *itemNode = NULL;
2133         for ( wxDataViewTreeNodes::const_iterator i = parentsChildren.begin();
2134               i != parentsChildren.end();
2135               ++i, ++itemPosInNode )
2136         {
2137             if( (*i)->GetItem() == item )
2138             {
2139                 itemNode = *i;
2140                 break;
2141             }
2142         }
2143
2144         // If the parent wasn't expanded, it's possible that we didn't have a
2145         // node corresponding to 'item' and so there's nothing left to do.
2146         if ( !itemNode )
2147         {
2148             // If this was the last child to be removed, it's possible the parent
2149             // node became a leaf. Let's ask the model about it.
2150             if ( parentNode->GetChildNodes().empty() )
2151                 parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2152
2153             return true;
2154         }
2155
2156         // Delete the item from wxDataViewTreeNode representation:
2157         const int itemsDeleted = 1 + itemNode->GetSubTreeCount();
2158
2159         parentNode->RemoveChild(itemNode);
2160         delete itemNode;
2161         parentNode->ChangeSubTreeCount(-itemsDeleted);
2162
2163         // Make the row number invalid and get a new valid one when user call GetRowCount
2164         m_count = -1;
2165
2166         // If this was the last child to be removed, it's possible the parent
2167         // node became a leaf. Let's ask the model about it.
2168         if ( parentNode->GetChildNodes().empty() )
2169             parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2170
2171         // Update selection by removing 'item' and its entire children tree from the selection.
2172         if ( !m_selection.empty() )
2173         {
2174             // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2175             // the parent ('parentNode') and position in its list of children
2176             int itemRow;
2177             if ( itemPosInNode == 0 )
2178             {
2179                 // 1st child, row number is that of the parent parentNode + 1
2180                 itemRow = GetRowByItem(parentNode->GetItem()) + 1;
2181             }
2182             else
2183             {
2184                 // row number is that of the sibling above 'item' + its subtree if any + 1
2185                 const wxDataViewTreeNode *siblingNode = parentNode->GetChildNodes()[itemPosInNode - 1];
2186
2187                 itemRow = GetRowByItem(siblingNode->GetItem()) +
2188                           siblingNode->GetSubTreeCount() +
2189                           1;
2190             }
2191
2192             wxDataViewSelection newsel(wxDataViewSelectionCmp);
2193
2194             const size_t numSelections = m_selection.size();
2195             for ( size_t i = 0; i < numSelections; ++i )
2196             {
2197                 const int s = m_selection[i];
2198                 if ( s < itemRow )
2199                     newsel.push_back(s);
2200                 else if ( s >= itemRow + itemsDeleted )
2201                     newsel.push_back(s - itemsDeleted);
2202                 // else: deleted item, remove from selection
2203             }
2204
2205             m_selection = newsel;
2206         }
2207     }
2208
2209     // Change the current row to the last row if the current exceed the max row number
2210     if( m_currentRow > GetRowCount() )
2211         ChangeCurrentRow(m_count - 1);
2212
2213     GetOwner()->InvalidateColBestWidths();
2214     UpdateDisplay();
2215
2216     return true;
2217 }
2218
2219 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2220 {
2221     SortPrepare();
2222     g_model->Resort();
2223
2224     GetOwner()->InvalidateColBestWidths();
2225
2226     // Send event
2227     wxWindow *parent = GetParent();
2228     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2229     le.SetEventObject(parent);
2230     le.SetModel(GetModel());
2231     le.SetItem(item);
2232     parent->ProcessWindowEvent(le);
2233
2234     return true;
2235 }
2236
2237 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2238 {
2239     int view_column = -1;
2240     unsigned int n_col = m_owner->GetColumnCount();
2241     for (unsigned i = 0; i < n_col; i++)
2242     {
2243         wxDataViewColumn *column = m_owner->GetColumn( i );
2244         if (column->GetModelColumn() == model_column)
2245         {
2246             view_column = (int) i;
2247             break;
2248         }
2249     }
2250     if (view_column == -1)
2251         return false;
2252
2253     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2254 /*#define MAX_VIRTUAL_WIDTH       100000
2255
2256     wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2257     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2258     Refresh( true, &rect );
2259
2260     return true;
2261 */
2262     SortPrepare();
2263     g_model->Resort();
2264
2265     GetOwner()->InvalidateColBestWidth(view_column);
2266
2267     // Send event
2268     wxWindow *parent = GetParent();
2269     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2270     le.SetEventObject(parent);
2271     le.SetModel(GetModel());
2272     le.SetItem(item);
2273     le.SetColumn(view_column);
2274     le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2275     parent->ProcessWindowEvent(le);
2276
2277     return true;
2278 }
2279
2280 bool wxDataViewMainWindow::Cleared()
2281 {
2282     DestroyTree();
2283     m_selection.Clear();
2284
2285     SortPrepare();
2286     BuildTree( GetModel() );
2287
2288     GetOwner()->InvalidateColBestWidths();
2289     UpdateDisplay();
2290
2291     return true;
2292 }
2293
2294 void wxDataViewMainWindow::UpdateDisplay()
2295 {
2296     m_dirty = true;
2297     m_underMouse = NULL;
2298 }
2299
2300 void wxDataViewMainWindow::OnInternalIdle()
2301 {
2302     wxWindow::OnInternalIdle();
2303
2304     if (m_dirty)
2305     {
2306         RecalculateDisplay();
2307         m_dirty = false;
2308     }
2309 }
2310
2311 void wxDataViewMainWindow::RecalculateDisplay()
2312 {
2313     wxDataViewModel *model = GetModel();
2314     if (!model)
2315     {
2316         Refresh();
2317         return;
2318     }
2319
2320     int width = GetEndOfLastCol();
2321     int height = GetLineStart( GetRowCount() );
2322
2323     SetVirtualSize( width, height );
2324     GetOwner()->SetScrollRate( 10, m_lineHeight );
2325
2326     Refresh();
2327 }
2328
2329 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2330 {
2331     m_underMouse = NULL;
2332
2333     wxWindow::ScrollWindow( dx, dy, rect );
2334
2335     if (GetOwner()->m_headerArea)
2336         GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2337 }
2338
2339 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2340 {
2341     m_underMouse = NULL;
2342
2343     int x, y;
2344     m_owner->GetScrollPixelsPerUnit( &x, &y );
2345     int sy = GetLineStart( rows )/y;
2346     int sx = 0;
2347     if( column != -1 )
2348     {
2349         wxRect rect = GetClientRect();
2350         int colnum = 0;
2351         int x_start, w = 0;
2352         int xx, yy, xe;
2353         m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2354         for (x_start = 0; colnum < column; colnum++)
2355         {
2356             wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2357             if (col->IsHidden())
2358                 continue;      // skip it!
2359
2360             w = col->GetWidth();
2361             x_start += w;
2362         }
2363
2364         int x_end = x_start + w;
2365         xe = xx + rect.width;
2366         if( x_end > xe )
2367         {
2368             sx = ( xx + x_end - xe )/x;
2369         }
2370         if( x_start < xx )
2371         {
2372             sx = x_start/x;
2373         }
2374     }
2375     m_owner->Scroll( sx, sy );
2376 }
2377
2378 int wxDataViewMainWindow::GetCountPerPage() const
2379 {
2380     wxSize size = GetClientSize();
2381     return size.y / m_lineHeight;
2382 }
2383
2384 int wxDataViewMainWindow::GetEndOfLastCol() const
2385 {
2386     int width = 0;
2387     unsigned int i;
2388     for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2389     {
2390         const wxDataViewColumn *c =
2391             const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2392
2393         if (!c->IsHidden())
2394             width += c->GetWidth();
2395     }
2396     return width;
2397 }
2398
2399 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2400 {
2401     int x = 0;
2402     int y = 0;
2403     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2404
2405     return GetLineAt( y );
2406 }
2407
2408 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2409 {
2410     wxSize client_size = GetClientSize();
2411     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2412                                     &client_size.x, &client_size.y );
2413
2414     // we should deal with the pixel here
2415     unsigned int row = GetLineAt(client_size.y) - 1;
2416
2417     return wxMin( GetRowCount()-1, row );
2418 }
2419
2420 unsigned int wxDataViewMainWindow::GetRowCount()
2421 {
2422     if ( m_count == -1 )
2423     {
2424         m_count = RecalculateCount();
2425         UpdateDisplay();
2426     }
2427     return m_count;
2428 }
2429
2430 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2431 {
2432     m_currentRow = row;
2433
2434     // send event
2435 }
2436
2437 void wxDataViewMainWindow::SelectAllRows( bool on )
2438 {
2439     if (IsEmpty())
2440         return;
2441
2442     if (on)
2443     {
2444         m_selection.Clear();
2445         for (unsigned int i = 0; i < GetRowCount(); i++)
2446             m_selection.Add( i );
2447         Refresh();
2448     }
2449     else
2450     {
2451         unsigned int first_visible = GetFirstVisibleRow();
2452         unsigned int last_visible = GetLastVisibleRow();
2453         unsigned int i;
2454         for (i = 0; i < m_selection.GetCount(); i++)
2455         {
2456             unsigned int row = m_selection[i];
2457             if ((row >= first_visible) && (row <= last_visible))
2458                 RefreshRow( row );
2459         }
2460         m_selection.Clear();
2461     }
2462 }
2463
2464 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2465 {
2466     if (m_selection.Index( row ) == wxNOT_FOUND)
2467     {
2468         if (on)
2469         {
2470             m_selection.Add( row );
2471             RefreshRow( row );
2472         }
2473     }
2474     else
2475     {
2476         if (!on)
2477         {
2478             m_selection.Remove( row );
2479             RefreshRow( row );
2480         }
2481     }
2482 }
2483
2484 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2485 {
2486     if (from > to)
2487     {
2488         unsigned int tmp = from;
2489         from = to;
2490         to = tmp;
2491     }
2492
2493     unsigned int i;
2494     for (i = from; i <= to; i++)
2495     {
2496         if (m_selection.Index( i ) == wxNOT_FOUND)
2497         {
2498             if (on)
2499                 m_selection.Add( i );
2500         }
2501         else
2502         {
2503             if (!on)
2504                 m_selection.Remove( i );
2505         }
2506     }
2507     RefreshRows( from, to );
2508 }
2509
2510 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2511 {
2512     for (size_t i=0; i < aSelections.GetCount(); i++)
2513     {
2514         int n = aSelections[i];
2515
2516         m_selection.Add( n );
2517         RefreshRow( n );
2518     }
2519 }
2520
2521 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2522 {
2523     if (m_selection.Index( row ) == wxNOT_FOUND)
2524         m_selection.Add( row );
2525     else
2526         m_selection.Remove( row );
2527     RefreshRow( row );
2528 }
2529
2530 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2531 {
2532     return (m_selection.Index( row ) != wxNOT_FOUND);
2533 }
2534
2535 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2536 {
2537     wxWindow *parent = GetParent();
2538     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2539
2540     le.SetEventObject(parent);
2541     le.SetModel(GetModel());
2542     le.SetItem( item );
2543
2544     parent->ProcessWindowEvent(le);
2545 }
2546
2547 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2548 {
2549     wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2550     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2551
2552     wxSize client_size = GetClientSize();
2553     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2554     wxRect intersect_rect = client_rect.Intersect( rect );
2555     if (intersect_rect.width > 0)
2556         Refresh( true, &intersect_rect );
2557 }
2558
2559 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2560 {
2561     if (from > to)
2562     {
2563         unsigned int tmp = to;
2564         to = from;
2565         from = tmp;
2566     }
2567
2568     wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2569     m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2570
2571     wxSize client_size = GetClientSize();
2572     wxRect client_rect( 0, 0, client_size.x, client_size.y );
2573     wxRect intersect_rect = client_rect.Intersect( rect );
2574     if (intersect_rect.width > 0)
2575         Refresh( true, &intersect_rect );
2576 }
2577
2578 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2579 {
2580     wxSize client_size = GetClientSize();
2581     int start = GetLineStart( firstRow );
2582     m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2583     if (start > client_size.y) return;
2584
2585     wxRect rect( 0, start, client_size.x, client_size.y - start );
2586
2587     Refresh( true, &rect );
2588 }
2589
2590 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2591 {
2592     wxRect rect;
2593     rect.x = 0;
2594     rect.y = GetLineStart( row );
2595     rect.width = GetEndOfLastCol();
2596     rect.height = GetLineHeight( row );
2597
2598     return rect;
2599 }
2600
2601 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2602 {
2603     const wxDataViewModel *model = GetModel();
2604
2605     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2606     {
2607         // TODO make more efficient
2608
2609         int start = 0;
2610
2611         unsigned int r;
2612         for (r = 0; r < row; r++)
2613         {
2614             const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2615             if (!node) return start;
2616
2617             wxDataViewItem item = node->GetItem();
2618
2619             unsigned int cols = GetOwner()->GetColumnCount();
2620             unsigned int col;
2621             int height = m_lineHeight;
2622             for (col = 0; col < cols; col++)
2623             {
2624                 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2625                 if (column->IsHidden())
2626                     continue;      // skip it!
2627
2628                 if ((col != 0) &&
2629                     model->IsContainer(item) &&
2630                     !model->HasContainerColumns(item))
2631                     continue;      // skip it!
2632
2633                 wxDataViewRenderer *renderer =
2634                     const_cast<wxDataViewRenderer*>(column->GetRenderer());
2635                 renderer->PrepareForItem(model, item, column->GetModelColumn());
2636
2637                 height = wxMax( height, renderer->GetSize().y );
2638             }
2639
2640             start += height;
2641         }
2642
2643         return start;
2644     }
2645     else
2646     {
2647         return row * m_lineHeight;
2648     }
2649 }
2650
2651 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2652 {
2653     const wxDataViewModel *model = GetModel();
2654
2655     // check for the easy case first
2656     if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2657         return y / m_lineHeight;
2658
2659     // TODO make more efficient
2660     unsigned int row = 0;
2661     unsigned int yy = 0;
2662     for (;;)
2663     {
2664         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2665         if (!node)
2666         {
2667             // not really correct...
2668             return row + ((y-yy) / m_lineHeight);
2669         }
2670
2671         wxDataViewItem item = node->GetItem();
2672
2673         unsigned int cols = GetOwner()->GetColumnCount();
2674         unsigned int col;
2675         int height = m_lineHeight;
2676         for (col = 0; col < cols; col++)
2677         {
2678             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2679             if (column->IsHidden())
2680                 continue;      // skip it!
2681
2682             if ((col != 0) &&
2683                 model->IsContainer(item) &&
2684                 !model->HasContainerColumns(item))
2685                 continue;      // skip it!
2686
2687             wxDataViewRenderer *renderer =
2688                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2689             renderer->PrepareForItem(model, item, column->GetModelColumn());
2690
2691             height = wxMax( height, renderer->GetSize().y );
2692         }
2693
2694         yy += height;
2695         if (y < yy)
2696             return row;
2697
2698         row++;
2699     }
2700 }
2701
2702 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2703 {
2704     const wxDataViewModel *model = GetModel();
2705
2706     if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2707     {
2708         wxASSERT( !IsVirtualList() );
2709
2710         const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2711         // wxASSERT( node );
2712         if (!node) return m_lineHeight;
2713
2714         wxDataViewItem item = node->GetItem();
2715
2716         int height = m_lineHeight;
2717
2718         unsigned int cols = GetOwner()->GetColumnCount();
2719         unsigned int col;
2720         for (col = 0; col < cols; col++)
2721         {
2722             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2723             if (column->IsHidden())
2724                 continue;      // skip it!
2725
2726             if ((col != 0) &&
2727                 model->IsContainer(item) &&
2728                 !model->HasContainerColumns(item))
2729                 continue;      // skip it!
2730
2731             wxDataViewRenderer *renderer =
2732                 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2733             renderer->PrepareForItem(model, item, column->GetModelColumn());
2734
2735             height = wxMax( height, renderer->GetSize().y );
2736         }
2737
2738         return height;
2739     }
2740     else
2741     {
2742         return m_lineHeight;
2743     }
2744 }
2745
2746
2747 class RowToTreeNodeJob: public DoJob
2748 {
2749 public:
2750     RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
2751     {
2752         this->row = row;
2753         this->current = current;
2754         ret = NULL;
2755         parent = node;
2756     }
2757
2758     virtual int operator() ( wxDataViewTreeNode * node )
2759     {
2760         current ++;
2761         if( current == static_cast<int>(row))
2762         {
2763             ret = node;
2764             return DoJob::DONE;
2765         }
2766
2767         if( node->GetSubTreeCount() + current < static_cast<int>(row) )
2768         {
2769             current += node->GetSubTreeCount();
2770             return  DoJob::SKIP_SUBTREE;
2771         }
2772         else
2773         {
2774             parent = node;
2775
2776             // If the current node has only leaf children, we can find the
2777             // desired node directly. This can speed up finding the node
2778             // in some cases, and will have a very good effect for list views.
2779             if ( node->HasChildren() &&
2780                  (int)node->GetChildNodes().size() == node->GetSubTreeCount() )
2781             {
2782                 const int index = static_cast<int>(row) - current - 1;
2783                 ret = node->GetChildNodes()[index];
2784                 return DoJob::DONE;
2785             }
2786
2787             return DoJob::CONTINUE;
2788         }
2789     }
2790
2791     wxDataViewTreeNode * GetResult() const
2792         { return ret; }
2793
2794 private:
2795     unsigned int row;
2796     int current;
2797     wxDataViewTreeNode * ret;
2798     wxDataViewTreeNode * parent;
2799 };
2800
2801 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
2802 {
2803     wxASSERT( !IsVirtualList() );
2804
2805     RowToTreeNodeJob job( row , -2, m_root );
2806     Walker( m_root , job );
2807     return job.GetResult();
2808 }
2809
2810 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
2811 {
2812     if (IsVirtualList())
2813     {
2814         return wxDataViewItem( wxUIntToPtr(row+1) );
2815     }
2816     else
2817     {
2818         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2819         return node ? node->GetItem() : wxDataViewItem();
2820     }
2821 }
2822
2823 bool
2824 wxDataViewMainWindow::SendExpanderEvent(wxEventType type,
2825                                         const wxDataViewItem& item)
2826 {
2827     wxWindow *parent = GetParent();
2828     wxDataViewEvent le(type, parent->GetId());
2829
2830     le.SetEventObject(parent);
2831     le.SetModel(GetModel());
2832     le.SetItem( item );
2833
2834     return !parent->ProcessWindowEvent(le) || le.IsAllowed();
2835 }
2836
2837 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
2838 {
2839     if (IsList())
2840         return false;
2841
2842     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2843     if (!node)
2844         return false;
2845
2846     if (!node->HasChildren())
2847         return false;
2848
2849     return node->IsOpen();
2850 }
2851
2852 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
2853 {
2854     if (IsList())
2855         return false;
2856
2857     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2858     if (!node)
2859         return false;
2860
2861     if (!node->HasChildren())
2862         return false;
2863
2864     return true;
2865 }
2866
2867 void wxDataViewMainWindow::Expand( unsigned int row )
2868 {
2869     if (IsList())
2870         return;
2871
2872     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
2873     if (!node)
2874         return;
2875
2876     if (!node->HasChildren())
2877         return;
2878
2879             if (!node->IsOpen())
2880             {
2881                 if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem()) )
2882                 {
2883                     // Vetoed by the event handler.
2884                     return;
2885                 }
2886
2887                 node->ToggleOpen();
2888
2889                 // build the children of current node
2890                 if( node->GetChildNodes().empty() )
2891                 {
2892                     SortPrepare();
2893                     ::BuildTreeHelper(GetModel(), node->GetItem(), node);
2894                 }
2895
2896                 // By expanding the node all row indices that are currently in the selection list
2897                 // and are greater than our node have become invalid. So we have to correct that now.
2898                 const unsigned rowAdjustment = node->GetSubTreeCount();
2899                 for(unsigned i=0; i<m_selection.size(); ++i)
2900                 {
2901                     const unsigned testRow = m_selection[i];
2902                     // all rows above us are not affected, so skip them
2903                     if(testRow <= row)
2904                         continue;
2905
2906                     m_selection[i] += rowAdjustment;
2907                 }
2908
2909                 if(m_currentRow > row)
2910                     ChangeCurrentRow(m_currentRow + rowAdjustment);
2911
2912                 m_count = -1;
2913                 UpdateDisplay();
2914                 // Send the expanded event
2915                 SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
2916             }
2917 }
2918
2919 void wxDataViewMainWindow::Collapse(unsigned int row)
2920 {
2921     if (IsList())
2922         return;
2923
2924     wxDataViewTreeNode *node = GetTreeNodeByRow(row);
2925     if (!node)
2926         return;
2927
2928     if (!node->HasChildren())
2929         return;
2930
2931         if (node->IsOpen())
2932         {
2933             if ( !SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem()) )
2934             {
2935                 // Vetoed by the event handler.
2936                 return;
2937             }
2938
2939             // Find out if there are selected items below the current node.
2940             bool selectCollapsingRow = false;
2941             const unsigned rowAdjustment = node->GetSubTreeCount();
2942             unsigned maxRowToBeTested = row + rowAdjustment;
2943             for(unsigned i=0; i<m_selection.size(); ++i)
2944             {
2945                 const unsigned testRow = m_selection[i];
2946                 if(testRow > row && testRow <= maxRowToBeTested)
2947                 {
2948                     selectCollapsingRow = true;
2949                     // get out as soon as we have found a node that is selected
2950                     break;
2951                 }
2952             }
2953
2954             node->ToggleOpen();
2955
2956             // If the node to be closed has selected items the user won't see those any longer.
2957             // We select the collapsing node in this case.
2958             if(selectCollapsingRow)
2959             {
2960                 SelectAllRows(false);
2961                 ChangeCurrentRow(row);
2962                 SelectRow(row, true);
2963                 SendSelectionChangedEvent(GetItemByRow(row));
2964             }
2965             else
2966             {
2967                 // if there were no selected items below our node we still need to "fix" the
2968                 // selection list to adjust for the changing of the row indices.
2969                 // We actually do the opposite of what we are doing in Expand().
2970                 for(unsigned i=0; i<m_selection.size(); ++i)
2971                 {
2972                     const unsigned testRow = m_selection[i];
2973                     // all rows above us are not affected, so skip them
2974                     if(testRow <= row)
2975                         continue;
2976
2977                     m_selection[i] -= rowAdjustment;
2978                 }
2979
2980                 // if the "current row" is being collapsed away we change it to the current row ;-)
2981                 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
2982                     ChangeCurrentRow(row);
2983                 else if(m_currentRow > row)
2984                     ChangeCurrentRow(m_currentRow - rowAdjustment);
2985             }
2986
2987             m_count = -1;
2988             UpdateDisplay();
2989             SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
2990         }
2991 }
2992
2993 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
2994 {
2995     const wxDataViewModel * model = GetModel();
2996     if( model == NULL )
2997         return NULL;
2998
2999     if (!item.IsOk())
3000         return m_root;
3001
3002     // Compose the parent-chain for the item we are looking for
3003     wxVector<wxDataViewItem> parentChain;
3004     wxDataViewItem it( item );
3005     while( it.IsOk() )
3006     {
3007         parentChain.push_back(it);
3008         it = model->GetParent(it);
3009     }
3010
3011     // Find the item along the parent-chain.
3012     // This algorithm is designed to speed up the node-finding method
3013     wxDataViewTreeNode* node = m_root;
3014     for( unsigned iter = parentChain.size()-1; ; --iter )
3015     {
3016         if( node->HasChildren() )
3017         {
3018             if( node->GetChildNodes().empty() )
3019             {
3020                 // Even though the item is a container, it doesn't have any
3021                 // child nodes in the control's representation yet. We have
3022                 // to realize its subtree now.
3023                 SortPrepare();
3024                 ::BuildTreeHelper(model, node->GetItem(), node);
3025             }
3026
3027             const wxDataViewTreeNodes& nodes = node->GetChildNodes();
3028             bool found = false;
3029
3030             for (unsigned i = 0; i < nodes.GetCount(); ++i)
3031             {
3032                 wxDataViewTreeNode* currentNode = nodes[i];
3033                 if (currentNode->GetItem() == parentChain[iter])
3034                 {
3035                     if (currentNode->GetItem() == item)
3036                         return currentNode;
3037
3038                     node = currentNode;
3039                     found = true;
3040                     break;
3041                 }
3042             }
3043             if (!found)
3044                 return NULL;
3045         }
3046         else
3047             return NULL;
3048
3049         if ( !iter )
3050             break;
3051     }
3052     return NULL;
3053 }
3054
3055 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3056                                     wxDataViewColumn* &column )
3057 {
3058     wxDataViewColumn *col = NULL;
3059     unsigned int cols = GetOwner()->GetColumnCount();
3060     unsigned int colnum = 0;
3061     int x, y;
3062     m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3063     for (unsigned x_start = 0; colnum < cols; colnum++)
3064     {
3065         col = GetOwner()->GetColumnAt(colnum);
3066         if (col->IsHidden())
3067             continue;      // skip it!
3068
3069         unsigned int w = col->GetWidth();
3070         if (x_start+w >= (unsigned int)x)
3071             break;
3072
3073         x_start += w;
3074     }
3075
3076     column = col;
3077     item = GetItemByRow( GetLineAt( y ) );
3078 }
3079
3080 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3081                                           const wxDataViewColumn* column )
3082 {
3083     int xpos = 0;
3084     int width = 0;
3085
3086     unsigned int cols = GetOwner()->GetColumnCount();
3087     // If column is null the loop will compute the combined width of all columns.
3088     // Otherwise, it will compute the x position of the column we are looking for.
3089     for (unsigned int i = 0; i < cols; i++)
3090     {
3091         wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3092
3093         if (col == column)
3094             break;
3095
3096         if (col->IsHidden())
3097             continue;      // skip it!
3098
3099         xpos += col->GetWidth();
3100         width += col->GetWidth();
3101     }
3102
3103     if(column != 0)
3104     {
3105         // If we have a column, we need can get its width directly.
3106         if(column->IsHidden())
3107             width = 0;
3108         else
3109             width = column->GetWidth();
3110
3111     }
3112     else
3113     {
3114         // If we have no column, we reset the x position back to zero.
3115         xpos = 0;
3116     }
3117
3118     // we have to take an expander column into account and compute its indentation
3119     // to get the correct x position where the actual text is
3120     int indent = 0;
3121     int row = GetRowByItem(item);
3122     if (!IsList() &&
3123             (column == 0 || GetExpanderColumnOrFirstOne(GetOwner()) == column) )
3124     {
3125         wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3126         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3127         indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3128     }
3129
3130     wxRect itemRect( xpos + indent,
3131                      GetLineStart( row ),
3132                      width - indent,
3133                      GetLineHeight( row ) );
3134
3135     GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
3136                                       &itemRect.x, &itemRect.y );
3137
3138     return itemRect;
3139 }
3140
3141 int wxDataViewMainWindow::RecalculateCount()
3142 {
3143     if (IsVirtualList())
3144     {
3145         wxDataViewVirtualListModel *list_model =
3146             (wxDataViewVirtualListModel*) GetModel();
3147
3148         return list_model->GetCount();
3149     }
3150     else
3151     {
3152         return m_root->GetSubTreeCount();
3153     }
3154 }
3155
3156 class ItemToRowJob : public DoJob
3157 {
3158 public:
3159     ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3160         : m_iter(iter),
3161         item(item_)
3162     {
3163         ret = -1;
3164     }
3165
3166     // Maybe binary search will help to speed up this process
3167     virtual int operator() ( wxDataViewTreeNode * node)
3168     {
3169         ret ++;
3170         if( node->GetItem() == item )
3171         {
3172             return DoJob::DONE;
3173         }
3174
3175         if( node->GetItem() == *m_iter )
3176         {
3177             m_iter++;
3178             return DoJob::CONTINUE;
3179         }
3180         else
3181         {
3182             ret += node->GetSubTreeCount();
3183             return DoJob::SKIP_SUBTREE;
3184         }
3185
3186     }
3187
3188     // the row number is begin from zero
3189     int GetResult() const
3190         { return ret -1; }
3191
3192 private:
3193     wxVector<wxDataViewItem>::reverse_iterator m_iter;
3194     wxDataViewItem item;
3195     int ret;
3196
3197 };
3198
3199 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3200 {
3201     const wxDataViewModel * model = GetModel();
3202     if( model == NULL )
3203         return -1;
3204
3205     if (IsVirtualList())
3206     {
3207         return wxPtrToUInt( item.GetID() ) -1;
3208     }
3209     else
3210     {
3211         if( !item.IsOk() )
3212             return -1;
3213
3214         // Compose the parent-chain of the item we are looking for
3215         wxVector<wxDataViewItem> parentChain;
3216         wxDataViewItem it( item );
3217         while( it.IsOk() )
3218         {
3219             parentChain.push_back(it);
3220             it = model->GetParent(it);
3221         }
3222
3223         // add an 'invalid' item to represent our 'invisible' root node
3224         parentChain.push_back(wxDataViewItem());
3225
3226         // the parent chain was created by adding the deepest parent first.
3227         // so if we want to start at the root node, we have to iterate backwards through the vector
3228         ItemToRowJob job( item, parentChain.rbegin() );
3229         Walker( m_root, job );
3230         return job.GetResult();
3231     }
3232 }
3233
3234 static void BuildTreeHelper( const wxDataViewModel * model,  const wxDataViewItem & item,
3235                              wxDataViewTreeNode * node)
3236 {
3237     if( !model->IsContainer( item ) )
3238         return;
3239
3240     wxDataViewItemArray children;
3241     unsigned int num = model->GetChildren( item, children);
3242
3243     for ( unsigned int index = 0; index < num; index++ )
3244     {
3245         wxDataViewTreeNode *n = new wxDataViewTreeNode(node, children[index]);
3246
3247         if( model->IsContainer(children[index]) )
3248             n->SetHasChildren( true );
3249
3250         node->InsertChild(n, index);
3251     }
3252
3253     wxASSERT( node->IsOpen() );
3254     node->ChangeSubTreeCount(+num);
3255 }
3256
3257 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3258 {
3259     DestroyTree();
3260
3261     if (GetModel()->IsVirtualListModel())
3262     {
3263         m_count = -1;
3264         return;
3265     }
3266
3267     m_root = wxDataViewTreeNode::CreateRootNode();
3268
3269     // First we define a invalid item to fetch the top-level elements
3270     wxDataViewItem item;
3271     SortPrepare();
3272     BuildTreeHelper( model, item, m_root);
3273     m_count = -1;
3274 }
3275
3276 void wxDataViewMainWindow::DestroyTree()
3277 {
3278     if (!IsVirtualList())
3279     {
3280         wxDELETE(m_root);
3281         m_count = 0;
3282     }
3283 }
3284
3285 wxDataViewColumn*
3286 wxDataViewMainWindow::FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode)
3287 {
3288     // Edit the current column editable in 'mode'. If no column is focused
3289     // (typically because the user has full row selected), try to find the
3290     // first editable column (this would typically be a checkbox for
3291     // wxDATAVIEW_CELL_ACTIVATABLE and we don't want to force the user to set
3292     // focus on the checkbox column; or on the only editable text column).
3293
3294     wxDataViewColumn *candidate = m_currentCol;
3295
3296     if ( candidate &&
3297          candidate->GetRenderer()->GetMode() != mode &&
3298          !m_currentColSetByKeyboard )
3299     {
3300         // If current column was set by mouse to something not editable (in
3301         // 'mode') and the user pressed Space/F2 to edit it, treat the
3302         // situation as if there was whole-row focus, because that's what is
3303         // visually indicated and the mouse click could very well be targeted
3304         // on the row rather than on an individual cell.
3305         //
3306         // But if it was done by keyboard, respect that even if the column
3307         // isn't editable, because focus is visually on that column and editing
3308         // something else would be surprising.
3309         candidate = NULL;
3310     }
3311
3312     if ( !candidate )
3313     {
3314         const unsigned cols = GetOwner()->GetColumnCount();
3315         for ( unsigned i = 0; i < cols; i++ )
3316         {
3317             wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
3318             if ( c->IsHidden() )
3319                 continue;
3320
3321             if ( c->GetRenderer()->GetMode() == mode )
3322             {
3323                 candidate = c;
3324                 break;
3325             }
3326         }
3327     }
3328
3329     // If on container item without columns, only the expander column
3330     // may be directly editable:
3331     if ( candidate &&
3332          GetOwner()->GetExpanderColumn() != candidate &&
3333          GetModel()->IsContainer(item) &&
3334          !GetModel()->HasContainerColumns(item) )
3335     {
3336         candidate = GetOwner()->GetExpanderColumn();
3337     }
3338
3339     if ( !candidate )
3340        return NULL;
3341
3342    if ( candidate->GetRenderer()->GetMode() != mode )
3343        return NULL;
3344
3345    return candidate;
3346 }
3347
3348 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3349 {
3350     wxWindow * const parent = GetParent();
3351
3352     // propagate the char event upwards
3353     wxKeyEvent eventForParent(event);
3354     eventForParent.SetEventObject(parent);
3355     if ( parent->ProcessWindowEvent(eventForParent) )
3356         return;
3357
3358     if ( parent->HandleAsNavigationKey(event) )
3359         return;
3360
3361     // no item -> nothing to do
3362     if (!HasCurrentRow())
3363     {
3364         event.Skip();
3365         return;
3366     }
3367
3368     // don't use m_linesPerPage directly as it might not be computed yet
3369     const int pageSize = GetCountPerPage();
3370     wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3371
3372     switch ( event.GetKeyCode() )
3373     {
3374         case WXK_RETURN:
3375             {
3376                 // Enter activates the item, i.e. sends wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED to
3377                 // it. Only if that event is not handled do we activate column renderer (which
3378                 // is normally done by Space).
3379
3380                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3381
3382                 wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
3383                                    parent->GetId());
3384                 le.SetItem(item);
3385                 le.SetEventObject(parent);
3386                 le.SetModel(GetModel());
3387
3388                 if ( parent->ProcessWindowEvent(le) )
3389                     break;
3390                 // else: fall through to WXK_SPACE handling
3391             }
3392
3393         case WXK_SPACE:
3394             {
3395                 const wxDataViewItem item = GetItemByRow(m_currentRow);
3396
3397                 // Activate the current activatable column. If not column is focused (typically
3398                 // because the user has full row selected), try to find the first activatable
3399                 // column (this would typically be a checkbox and we don't want to force the user
3400                 // to set focus on the checkbox column).
3401                 wxDataViewColumn *activatableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_ACTIVATABLE);
3402
3403                 if ( activatableCol )
3404                 {
3405                     const unsigned colIdx = activatableCol->GetModelColumn();
3406                     const wxRect cell_rect = GetOwner()->GetItemRect(item, activatableCol);
3407
3408                     wxDataViewRenderer *cell = activatableCol->GetRenderer();
3409                     cell->PrepareForItem(GetModel(), item, colIdx);
3410                     cell->WXActivateCell(cell_rect, GetModel(), item, colIdx, NULL);
3411                 }
3412             }
3413             break;
3414
3415         case WXK_UP:
3416             if ( m_currentRow > 0 )
3417                 OnVerticalNavigation( m_currentRow - 1, event );
3418             break;
3419
3420         case WXK_DOWN:
3421             if ( m_currentRow + 1 < GetRowCount() )
3422                 OnVerticalNavigation( m_currentRow + 1, event );
3423             break;
3424         // Add the process for tree expanding/collapsing
3425         case WXK_LEFT:
3426             OnLeftKey();
3427             break;
3428
3429         case WXK_RIGHT:
3430             OnRightKey();
3431             break;
3432
3433         case WXK_END:
3434         {
3435             if (!IsEmpty())
3436                 OnVerticalNavigation( GetRowCount() - 1, event );
3437             break;
3438         }
3439         case WXK_HOME:
3440             if (!IsEmpty())
3441                 OnVerticalNavigation( 0, event );
3442             break;
3443
3444         case WXK_PAGEUP:
3445             {
3446                 int steps = pageSize - 1;
3447                 int index = m_currentRow - steps;
3448                 if (index < 0)
3449                     index = 0;
3450
3451                 OnVerticalNavigation( index, event );
3452             }
3453             break;
3454
3455         case WXK_PAGEDOWN:
3456             {
3457                 int steps = pageSize - 1;
3458                 unsigned int index = m_currentRow + steps;
3459                 unsigned int count = GetRowCount();
3460                 if ( index >= count )
3461                     index = count - 1;
3462
3463                 OnVerticalNavigation( index, event );
3464             }
3465             break;
3466
3467         case WXK_F2:
3468             {
3469                 if( !m_selection.empty() )
3470                 {
3471                     // Mimic Windows 7 behavior: edit the item that has focus
3472                     // if it is selected and the first selected item if focus
3473                     // is out of selection.
3474                     int sel;
3475                     if ( m_selection.Index(m_currentRow) != wxNOT_FOUND )
3476                         sel = m_currentRow;
3477                     else
3478                         sel = m_selection[0];
3479
3480
3481                     const wxDataViewItem item = GetItemByRow(sel);
3482
3483                     // Edit the current column. If not column is focused
3484                     // (typically because the user has full row selected), try
3485                     // to find the first editable column.
3486                     wxDataViewColumn *editableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_EDITABLE);
3487
3488                     if ( editableCol )
3489                         GetOwner()->StartEditor(item, GetOwner()->GetColumnIndex(editableCol));
3490                 }
3491             }
3492             break;
3493
3494         default:
3495             event.Skip();
3496     }
3497 }
3498
3499 void wxDataViewMainWindow::OnVerticalNavigation(unsigned int newCurrent, const wxKeyEvent& event)
3500 {
3501     wxCHECK_RET( newCurrent < GetRowCount(),
3502                 wxT("invalid item index in OnVerticalNavigation()") );
3503
3504     // if there is no selection, we cannot move it anywhere
3505     if (!HasCurrentRow())
3506         return;
3507
3508     unsigned int oldCurrent = m_currentRow;
3509
3510     // in single selection we just ignore Shift as we can't select several
3511     // items anyhow
3512     if ( event.ShiftDown() && !IsSingleSel() )
3513     {
3514         RefreshRow( oldCurrent );
3515
3516         ChangeCurrentRow( newCurrent );
3517
3518         // select all the items between the old and the new one
3519         if ( oldCurrent > newCurrent )
3520         {
3521             newCurrent = oldCurrent;
3522             oldCurrent = m_currentRow;
3523         }
3524
3525         SelectRows( oldCurrent, newCurrent, true );
3526         if (oldCurrent!=newCurrent)
3527             SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
3528     }
3529     else // !shift
3530     {
3531         RefreshRow( oldCurrent );
3532
3533         // all previously selected items are unselected unless ctrl is held
3534         if ( !event.ControlDown() )
3535             SelectAllRows(false);
3536
3537         ChangeCurrentRow( newCurrent );
3538
3539         if ( !event.ControlDown() )
3540         {
3541             SelectRow( m_currentRow, true );
3542             SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3543         }
3544         else
3545             RefreshRow( m_currentRow );
3546     }
3547
3548     GetOwner()->EnsureVisible( m_currentRow, -1 );
3549 }
3550
3551 void wxDataViewMainWindow::OnLeftKey()
3552 {
3553     if ( IsList() )
3554     {
3555         TryAdvanceCurrentColumn(NULL, /*forward=*/false);
3556     }
3557     else
3558     {
3559         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3560
3561         if ( TryAdvanceCurrentColumn(node, /*forward=*/false) )
3562             return;
3563
3564         // Because TryAdvanceCurrentColumn() return false, we are at the first
3565         // column or using whole-row selection. In this situation, we can use
3566         // the standard TreeView handling of the left key.
3567         if (node->HasChildren() && node->IsOpen())
3568         {
3569             Collapse(m_currentRow);
3570         }
3571         else
3572         {
3573             // if the node is already closed, we move the selection to its parent
3574             wxDataViewTreeNode *parent_node = node->GetParent();
3575
3576             if (parent_node)
3577             {
3578                 int parent = GetRowByItem( parent_node->GetItem() );
3579                 if ( parent >= 0 )
3580                 {
3581                     unsigned int row = m_currentRow;
3582                     SelectRow( row, false);
3583                     SelectRow( parent, true );
3584                     ChangeCurrentRow( parent );
3585                     GetOwner()->EnsureVisible( parent, -1 );
3586                     SendSelectionChangedEvent( parent_node->GetItem() );
3587                 }
3588             }
3589         }
3590     }
3591 }
3592
3593 void wxDataViewMainWindow::OnRightKey()
3594 {
3595     if ( IsList() )
3596     {
3597         TryAdvanceCurrentColumn(NULL, /*forward=*/true);
3598     }
3599     else
3600     {
3601         wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3602
3603         if ( node->HasChildren() )
3604         {
3605             if ( !node->IsOpen() )
3606             {
3607                 Expand( m_currentRow );
3608             }
3609             else
3610             {
3611                 // if the node is already open, we move the selection to the first child
3612                 unsigned int row = m_currentRow;
3613                 SelectRow( row, false );
3614                 SelectRow( row + 1, true );
3615                 ChangeCurrentRow( row + 1 );
3616                 GetOwner()->EnsureVisible( row + 1, -1 );
3617                 SendSelectionChangedEvent( GetItemByRow(row+1) );
3618             }
3619         }
3620         else
3621         {
3622             TryAdvanceCurrentColumn(node, /*forward=*/true);
3623         }
3624     }
3625 }
3626
3627 bool wxDataViewMainWindow::TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward)
3628 {
3629     if ( GetOwner()->GetColumnCount() == 0 )
3630         return false;
3631
3632     if ( !m_useCellFocus )
3633         return false;
3634
3635     if ( node )
3636     {
3637         // navigation shouldn't work in branch nodes without other columns:
3638         if ( node->HasChildren() && !GetModel()->HasContainerColumns(node->GetItem()) )
3639             return false;
3640     }
3641
3642     if ( m_currentCol == NULL || !m_currentColSetByKeyboard )
3643     {
3644         if ( forward )
3645         {
3646             m_currentCol = GetOwner()->GetColumnAt(1);
3647             m_currentColSetByKeyboard = true;
3648             RefreshRow(m_currentRow);
3649             return true;
3650         }
3651         else
3652             return false;
3653     }
3654
3655     int idx = GetOwner()->GetColumnIndex(m_currentCol) + (forward ? +1 : -1);
3656
3657     if ( idx >= (int)GetOwner()->GetColumnCount() )
3658         return false;
3659
3660     if ( idx < 1 )
3661     {
3662         // We are going to the left of the second column. Reset to whole-row
3663         // focus (which means first column would be edited).
3664         m_currentCol = NULL;
3665         RefreshRow(m_currentRow);
3666         return true;
3667     }
3668
3669     m_currentCol = GetOwner()->GetColumnAt(idx);
3670     m_currentColSetByKeyboard = true;
3671     RefreshRow(m_currentRow);
3672     return true;
3673 }
3674
3675 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3676 {
3677     if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3678     {
3679         // let the base handle mouse wheel events.
3680         event.Skip();
3681         return;
3682     }
3683
3684     // set the focus to ourself if any of the mouse buttons are pressed
3685     if(event.ButtonDown() && !HasFocus())
3686         SetFocus();
3687
3688     int x = event.GetX();
3689     int y = event.GetY();
3690     m_owner->CalcUnscrolledPosition( x, y, &x, &y );
3691     wxDataViewColumn *col = NULL;
3692
3693     int xpos = 0;
3694     unsigned int cols = GetOwner()->GetColumnCount();
3695     unsigned int i;
3696     for (i = 0; i < cols; i++)
3697     {
3698         wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
3699         if (c->IsHidden())
3700             continue;      // skip it!
3701
3702         if (x < xpos + c->GetWidth())
3703         {
3704             col = c;
3705             break;
3706         }
3707         xpos += c->GetWidth();
3708     }
3709
3710     wxDataViewModel* const model = GetModel();
3711
3712     const unsigned int current = GetLineAt( y );
3713     const wxDataViewItem item = GetItemByRow(current);
3714
3715     // Handle right clicking here, before everything else as context menu
3716     // events should be sent even when we click outside of any item, unlike all
3717     // the other ones.
3718     if (event.RightUp())
3719     {
3720         wxWindow *parent = GetParent();
3721         wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
3722         le.SetEventObject(parent);
3723         le.SetModel(model);
3724
3725         if ( item.IsOk() && col )
3726         {
3727             le.SetItem( item );
3728             le.SetColumn( col->GetModelColumn() );
3729             le.SetDataViewColumn( col );
3730
3731             wxVariant value;
3732             model->GetValue( value, item, col->GetModelColumn() );
3733             le.SetValue(value);
3734         }
3735
3736         parent->ProcessWindowEvent(le);
3737         return;
3738     }
3739
3740     if (!col)
3741     {
3742         event.Skip();
3743         return;
3744     }
3745
3746     wxDataViewRenderer *cell = col->GetRenderer();
3747     if ((current >= GetRowCount()) || (x > GetEndOfLastCol()))
3748     {
3749         // Unselect all if below the last row ?
3750         event.Skip();
3751         return;
3752     }
3753
3754     wxDataViewColumn* const
3755         expander = GetExpanderColumnOrFirstOne(GetOwner());
3756
3757     // Test whether the mouse is hovering over the expander (a.k.a tree "+"
3758     // button) and also determine the offset of the real cell start, skipping
3759     // the indentation and the expander itself.
3760     bool hoverOverExpander = false;
3761     int itemOffset = 0;
3762     if ((!IsList()) && (expander == col))
3763     {
3764         wxDataViewTreeNode * node = GetTreeNodeByRow(current);
3765
3766         int indent = node->GetIndentLevel();
3767         itemOffset = GetOwner()->GetIndent()*indent;
3768
3769         if ( node->HasChildren() )
3770         {
3771             // we make the rectangle we are looking in a bit bigger than the actual
3772             // visual expander so the user can hit that little thing reliably
3773             wxRect rect(itemOffset,
3774                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
3775                         m_lineHeight, m_lineHeight);
3776
3777             if( rect.Contains(x, y) )
3778             {
3779                 // So the mouse is over the expander
3780                 hoverOverExpander = true;
3781                 if (m_underMouse && m_underMouse != node)
3782                 {
3783                     // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3784                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3785                 }
3786                 if (m_underMouse != node)
3787                 {
3788                     // wxLogMessage("Do the row: %d", current);
3789                     RefreshRow(current);
3790                 }
3791                 m_underMouse = node;
3792             }
3793         }
3794
3795         // Account for the expander as well, even if this item doesn't have it,
3796         // its parent does so it still counts for the offset.
3797         itemOffset += m_lineHeight;
3798     }
3799     if (!hoverOverExpander)
3800     {
3801         if (m_underMouse != NULL)
3802         {
3803             // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
3804             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
3805             m_underMouse = NULL;
3806         }
3807     }
3808
3809 #if wxUSE_DRAG_AND_DROP
3810     if (event.Dragging())
3811     {
3812         if (m_dragCount == 0)
3813         {
3814             // we have to report the raw, physical coords as we want to be
3815             // able to call HitTest(event.m_pointDrag) from the user code to
3816             // get the item being dragged
3817             m_dragStart = event.GetPosition();
3818         }
3819
3820         m_dragCount++;
3821
3822         if (m_dragCount != 3)
3823             return;
3824
3825         if (event.LeftIsDown())
3826         {
3827             m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
3828                                              &m_dragStart.x, &m_dragStart.y );
3829             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
3830             wxDataViewItem itemDragged = GetItemByRow( drag_item_row );
3831
3832             // Notify cell about drag
3833             wxDataViewEvent event( wxEVT_COMMAND_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
3834             event.SetEventObject( m_owner );
3835             event.SetItem( itemDragged );
3836             event.SetModel( model );
3837             if (!m_owner->HandleWindowEvent( event ))
3838                 return;
3839
3840             if (!event.IsAllowed())
3841                 return;
3842
3843             wxDataObject *obj = event.GetDataObject();
3844             if (!obj)
3845                 return;
3846
3847             wxDataViewDropSource drag( this, drag_item_row );
3848             drag.SetData( *obj );
3849             /* wxDragResult res = */ drag.DoDragDrop();
3850             delete obj;
3851         }
3852         return;
3853     }
3854     else
3855     {
3856         m_dragCount = 0;
3857     }
3858 #endif // wxUSE_DRAG_AND_DROP
3859
3860     bool simulateClick = false;
3861
3862     if (event.ButtonDClick())
3863     {
3864         m_renameTimer->Stop();
3865         m_lastOnSame = false;
3866     }
3867
3868     bool ignore_other_columns =
3869         ((expander != col) &&
3870         (model->IsContainer(item)) &&
3871         (!model->HasContainerColumns(item)));
3872
3873     if (event.LeftDClick())
3874     {
3875         if(hoverOverExpander)
3876         {
3877             // a double click on the expander will be converted into a "simulated" normal click
3878             simulateClick = true;
3879         }
3880         else if ( current == m_lineLastClicked )
3881         {
3882             wxWindow *parent = GetParent();
3883             wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
3884             le.SetItem( item );
3885             le.SetColumn( col->GetModelColumn() );
3886             le.SetDataViewColumn( col );
3887             le.SetEventObject(parent);
3888             le.SetModel(GetModel());
3889
3890             parent->ProcessWindowEvent(le);
3891             return;
3892         }
3893         else
3894         {
3895             // The first click was on another item, so don't interpret this as
3896             // a double click, but as a simple click instead
3897             simulateClick = true;
3898         }
3899     }
3900
3901     if (event.LeftUp() && !hoverOverExpander)
3902     {
3903         if (m_lineSelectSingleOnUp != (unsigned int)-1)
3904         {
3905             // select single line
3906             SelectAllRows( false );
3907             SelectRow( m_lineSelectSingleOnUp, true );
3908             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
3909         }
3910
3911         // If the user click the expander, we do not do editing even if the column
3912         // with expander are editable
3913         if (m_lastOnSame && !ignore_other_columns)
3914         {
3915             if ((col == m_currentCol) && (current == m_currentRow) &&
3916                 (cell->GetMode() & wxDATAVIEW_CELL_EDITABLE) )
3917             {
3918                 m_renameTimer->Start( 100, true );
3919             }
3920         }
3921
3922         m_lastOnSame = false;
3923         m_lineSelectSingleOnUp = (unsigned int)-1;
3924     }
3925     else if(!event.LeftUp())
3926     {
3927         // This is necessary, because after a DnD operation in
3928         // from and to ourself, the up event is swallowed by the
3929         // DnD code. So on next non-up event (which means here and
3930         // now) m_lineSelectSingleOnUp should be reset.
3931         m_lineSelectSingleOnUp = (unsigned int)-1;
3932     }
3933
3934     if (event.RightDown())
3935     {
3936         m_lineBeforeLastClicked = m_lineLastClicked;
3937         m_lineLastClicked = current;
3938
3939         // If the item is already selected, do not update the selection.
3940         // Multi-selections should not be cleared if a selected item is clicked.
3941         if (!IsRowSelected(current))
3942         {
3943             SelectAllRows(false);
3944             const unsigned oldCurrent = m_currentRow;
3945             ChangeCurrentRow(current);
3946             SelectRow(m_currentRow,true);
3947             RefreshRow(oldCurrent);
3948             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3949         }
3950     }
3951     else if (event.MiddleDown())
3952     {
3953     }
3954
3955     if((event.LeftDown() || simulateClick) && hoverOverExpander)
3956     {
3957         wxDataViewTreeNode* node = GetTreeNodeByRow(current);
3958
3959         // hoverOverExpander being true tells us that our node must be
3960         // valid and have children.
3961         // So we don't need any extra checks.
3962         if( node->IsOpen() )
3963             Collapse(current);
3964         else
3965             Expand(current);
3966     }
3967     else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
3968     {
3969         m_lineBeforeLastClicked = m_lineLastClicked;
3970         m_lineLastClicked = current;
3971
3972         unsigned int oldCurrentRow = m_currentRow;
3973         bool oldWasSelected = IsRowSelected(m_currentRow);
3974
3975         bool cmdModifierDown = event.CmdDown();
3976         if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
3977         {
3978             if ( IsSingleSel() || !IsRowSelected(current) )
3979             {
3980                 SelectAllRows( false );
3981                 ChangeCurrentRow(current);
3982                 SelectRow(m_currentRow,true);
3983                 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
3984             }
3985             else // multi sel & current is highlighted & no mod keys
3986             {
3987                 m_lineSelectSingleOnUp = current;
3988                 ChangeCurrentRow(current); // change focus
3989             }
3990         }
3991         else // multi sel & either ctrl or shift is down
3992         {
3993             if (cmdModifierDown)
3994             {
3995                 ChangeCurrentRow(current);
3996                 ReverseRowSelection(m_currentRow);
3997                 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3998             }
3999             else if (event.ShiftDown())
4000             {
4001                 ChangeCurrentRow(current);
4002
4003                 unsigned int lineFrom = oldCurrentRow,
4004                     lineTo = current;
4005
4006                 if ( lineTo < lineFrom )
4007                 {
4008                     lineTo = lineFrom;
4009                     lineFrom = m_currentRow;
4010                 }
4011
4012                 SelectRows(lineFrom, lineTo, true);
4013                 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
4014             }
4015             else // !ctrl, !shift
4016             {
4017                 // test in the enclosing if should make it impossible
4018                 wxFAIL_MSG( wxT("how did we get here?") );
4019             }
4020         }
4021
4022         if (m_currentRow != oldCurrentRow)
4023             RefreshRow( oldCurrentRow );
4024
4025         wxDataViewColumn *oldCurrentCol = m_currentCol;
4026
4027         // Update selection here...
4028         m_currentCol = col;
4029         m_currentColSetByKeyboard = false;
4030
4031         m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
4032                         (current == oldCurrentRow)) && oldWasSelected;
4033
4034         // Call ActivateCell() after everything else as under GTK+
4035         if (cell->GetMode() & wxDATAVIEW_CELL_ACTIVATABLE)
4036         {
4037             // notify cell about click
4038             cell->PrepareForItem(model, item, col->GetModelColumn());
4039
4040             wxRect cell_rect( xpos + itemOffset,
4041                               GetLineStart( current ),
4042                               col->GetWidth() - itemOffset,
4043                               GetLineHeight( current ) );
4044
4045             // Report position relative to the cell's custom area, i.e.
4046             // no the entire space as given by the control but the one
4047             // used by the renderer after calculation of alignment etc.
4048
4049             // adjust the rectangle ourselves to account for the alignment
4050             wxRect rectItem = cell_rect;
4051             const int align = cell->GetAlignment();
4052             if ( align != wxDVR_DEFAULT_ALIGNMENT )
4053             {
4054                 const wxSize size = cell->GetSize();
4055
4056                 if ( size.x >= 0 && size.x < cell_rect.width )
4057                 {
4058                     if ( align & wxALIGN_CENTER_HORIZONTAL )
4059                         rectItem.x += (cell_rect.width - size.x)/2;
4060                     else if ( align & wxALIGN_RIGHT )
4061                         rectItem.x += cell_rect.width - size.x;
4062                     // else: wxALIGN_LEFT is the default
4063                 }
4064
4065                 if ( size.y >= 0 && size.y < cell_rect.height )
4066                 {
4067                     if ( align & wxALIGN_CENTER_VERTICAL )
4068                         rectItem.y += (cell_rect.height - size.y)/2;
4069                     else if ( align & wxALIGN_BOTTOM )
4070                         rectItem.y += cell_rect.height - size.y;
4071                     // else: wxALIGN_TOP is the default
4072                 }
4073             }
4074
4075             wxMouseEvent event2(event);
4076             event2.m_x -= rectItem.x;
4077             event2.m_y -= rectItem.y;
4078             m_owner->CalcUnscrolledPosition(event2.m_x, event2.m_y, &event2.m_x, &event2.m_y);
4079
4080              /* ignore ret */ cell->WXActivateCell
4081                                     (
4082                                         cell_rect,
4083                                         model,
4084                                         item,
4085                                         col->GetModelColumn(),
4086                                         &event2
4087                                     );
4088         }
4089     }
4090 }
4091
4092 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
4093 {
4094     m_hasFocus = true;
4095
4096     if (HasCurrentRow())
4097         Refresh();
4098
4099     event.Skip();
4100 }
4101
4102 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
4103 {
4104     m_hasFocus = false;
4105
4106     if (HasCurrentRow())
4107         Refresh();
4108
4109     event.Skip();
4110 }
4111
4112 void wxDataViewMainWindow::OnColumnsCountChanged()
4113 {
4114     int editableCount = 0;
4115
4116     const unsigned cols = GetOwner()->GetColumnCount();
4117     for ( unsigned i = 0; i < cols; i++ )
4118     {
4119         wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
4120         if ( c->IsHidden() )
4121             continue;
4122         if ( c->GetRenderer()->GetMode() != wxDATAVIEW_CELL_INERT )
4123             editableCount++;
4124     }
4125
4126     m_useCellFocus = (editableCount > 1);
4127
4128     UpdateDisplay();
4129 }
4130
4131 //-----------------------------------------------------------------------------
4132 // wxDataViewCtrl
4133 //-----------------------------------------------------------------------------
4134
4135 WX_DEFINE_LIST(wxDataViewColumnList)
4136
4137 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
4138 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
4139     EVT_SIZE(wxDataViewCtrl::OnSize)
4140 END_EVENT_TABLE()
4141
4142 wxDataViewCtrl::~wxDataViewCtrl()
4143 {
4144     if (m_notifier)
4145         GetModel()->RemoveNotifier( m_notifier );
4146
4147     m_cols.Clear();
4148     m_colsBestWidths.clear();
4149 }
4150
4151 void wxDataViewCtrl::Init()
4152 {
4153     m_cols.DeleteContents(true);
4154     m_notifier = NULL;
4155
4156     // No sorting column at start
4157     m_sortingColumnIdx = wxNOT_FOUND;
4158
4159     m_headerArea = NULL;
4160
4161     m_colsDirty = false;
4162 }
4163
4164 bool wxDataViewCtrl::Create(wxWindow *parent,
4165                             wxWindowID id,
4166                             const wxPoint& pos,
4167                             const wxSize& size,
4168                             long style,
4169                             const wxValidator& validator,
4170                             const wxString& name)
4171 {
4172 //    if ( (style & wxBORDER_MASK) == 0)
4173 //        style |= wxBORDER_SUNKEN;
4174
4175     Init();
4176
4177     if (!wxControl::Create( parent, id, pos, size,
4178                             style | wxScrolledWindowStyle, validator, name))
4179         return false;
4180
4181     SetInitialSize(size);
4182
4183 #ifdef __WXMAC__
4184     MacSetClipChildren( true );
4185 #endif
4186
4187     m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4188
4189     // We use the cursor keys for moving the selection, not scrolling, so call
4190     // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4191     // keyboard events forwarded to us from wxListMainWindow.
4192     DisableKeyboardScrolling();
4193
4194     if (HasFlag(wxDV_NO_HEADER))
4195         m_headerArea = NULL;
4196     else
4197         m_headerArea = new wxDataViewHeaderWindow(this);
4198
4199     SetTargetWindow( m_clientArea );
4200
4201     wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4202     if (m_headerArea)
4203         sizer->Add( m_headerArea, 0, wxGROW );
4204     sizer->Add( m_clientArea, 1, wxGROW );
4205     SetSizer( sizer );
4206
4207     return true;
4208 }
4209
4210 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4211 {
4212     return wxBORDER_THEME;
4213 }
4214
4215 #ifdef __WXMSW__
4216 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4217                                         WXWPARAM wParam,
4218                                         WXLPARAM lParam)
4219 {
4220     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4221
4222 #ifndef __WXWINCE__
4223     // we need to process arrows ourselves for scrolling
4224     if ( nMsg == WM_GETDLGCODE )
4225     {
4226         rc |= DLGC_WANTARROWS;
4227     }
4228 #endif
4229
4230     return rc;
4231 }
4232 #endif
4233
4234 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4235 {
4236     wxSize newsize = size;
4237     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4238     newsize.y -= m_headerArea->GetSize().y;
4239
4240     return newsize;
4241 }
4242
4243 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4244 {
4245     // We need to override OnSize so that our scrolled
4246     // window a) does call Layout() to use sizers for
4247     // positioning the controls but b) does not query
4248     // the sizer for their size and use that for setting
4249     // the scrollable area as set that ourselves by
4250     // calling SetScrollbar() further down.
4251
4252     Layout();
4253
4254     AdjustScrollbars();
4255
4256     // We must redraw the headers if their height changed. Normally this
4257     // shouldn't happen as the control shouldn't let itself be resized beneath
4258     // its minimal height but avoid the display artefacts that appear if it
4259     // does happen, e.g. because there is really not enough vertical space.
4260     if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4261             m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4262     {
4263         m_headerArea->Refresh();
4264     }
4265 }
4266
4267 void wxDataViewCtrl::SetFocus()
4268 {
4269     if (m_clientArea)
4270         m_clientArea->SetFocus();
4271 }
4272
4273 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4274 {
4275     if (!wxDataViewCtrlBase::AssociateModel( model ))
4276         return false;
4277
4278     m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4279
4280     model->AddNotifier( m_notifier );
4281
4282     m_clientArea->DestroyTree();
4283
4284     m_clientArea->BuildTree(model);
4285
4286     m_clientArea->UpdateDisplay();
4287
4288     return true;
4289 }
4290
4291 #if wxUSE_DRAG_AND_DROP
4292
4293 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4294 {
4295     return m_clientArea->EnableDragSource( format );
4296 }
4297
4298 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4299 {
4300     return m_clientArea->EnableDropTarget( format );
4301 }
4302
4303 #endif // wxUSE_DRAG_AND_DROP
4304
4305 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4306 {
4307     if (!wxDataViewCtrlBase::AppendColumn(col))
4308         return false;
4309
4310     m_cols.Append( col );
4311     m_colsBestWidths.push_back(0);
4312     OnColumnsCountChanged();
4313     return true;
4314 }
4315
4316 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4317 {
4318     if (!wxDataViewCtrlBase::PrependColumn(col))
4319         return false;
4320
4321     m_cols.Insert( col );
4322     m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
4323     OnColumnsCountChanged();
4324     return true;
4325 }
4326
4327 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4328 {
4329     if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4330         return false;
4331
4332     m_cols.Insert( pos, col );
4333     m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
4334     OnColumnsCountChanged();
4335     return true;
4336 }
4337
4338 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4339 {
4340     if ( m_headerArea )
4341         m_headerArea->UpdateColumn(idx);
4342
4343     m_clientArea->UpdateDisplay();
4344 }
4345
4346 void wxDataViewCtrl::OnColumnsCountChanged()
4347 {
4348     if (m_headerArea)
4349         m_headerArea->SetColumnCount(GetColumnCount());
4350
4351     m_clientArea->OnColumnsCountChanged();
4352 }
4353
4354 void wxDataViewCtrl::DoSetExpanderColumn()
4355 {
4356     m_clientArea->UpdateDisplay();
4357 }
4358
4359 void wxDataViewCtrl::DoSetIndent()
4360 {
4361     m_clientArea->UpdateDisplay();
4362 }
4363
4364 unsigned int wxDataViewCtrl::GetColumnCount() const
4365 {
4366     return m_cols.GetCount();
4367 }
4368
4369 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4370 {
4371     if ( !m_clientArea )
4372         return false;
4373
4374     m_clientArea->SetRowHeight(lineHeight);
4375
4376     return true;
4377 }
4378
4379 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4380 {
4381     return m_cols[idx];
4382 }
4383
4384 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4385 {
4386     // columns can't be reordered if there is no header window which allows
4387     // to do this
4388     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4389                                     : pos;
4390
4391     return GetColumn(idx);
4392 }
4393
4394 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4395 {
4396     const unsigned count = m_cols.size();
4397     for ( unsigned n = 0; n < count; n++ )
4398     {
4399         if ( m_cols[n] == column )
4400             return n;
4401     }
4402
4403     return wxNOT_FOUND;
4404 }
4405
4406 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4407 {
4408     if ( m_colsBestWidths[idx] != 0 )
4409         return m_colsBestWidths[idx];
4410
4411     const int count = m_clientArea->GetRowCount();
4412     wxDataViewColumn *column = GetColumn(idx);
4413     wxDataViewRenderer *renderer =
4414         const_cast<wxDataViewRenderer*>(column->GetRenderer());
4415
4416     class MaxWidthCalculator
4417     {
4418     public:
4419         MaxWidthCalculator(wxDataViewMainWindow *clientArea,
4420                            wxDataViewRenderer *renderer,
4421                            const wxDataViewModel *model,
4422                            unsigned column)
4423             : m_width(0),
4424               m_clientArea(clientArea),
4425               m_renderer(renderer),
4426               m_model(model),
4427               m_column(column)
4428         {
4429         }
4430
4431         void UpdateWithWidth(int width)
4432         {
4433             m_width = wxMax(m_width, width);
4434         }
4435
4436         void UpdateWithRow(int row)
4437         {
4438             wxDataViewItem item = m_clientArea->GetItemByRow(row);
4439             m_renderer->PrepareForItem(m_model, item, m_column);
4440             m_width = wxMax(m_width, m_renderer->GetSize().x);
4441         }
4442
4443         int GetMaxWidth() const { return m_width; }
4444
4445     private:
4446         int m_width;
4447         wxDataViewMainWindow *m_clientArea;
4448         wxDataViewRenderer *m_renderer;
4449         const wxDataViewModel *m_model;
4450         unsigned m_column;
4451     };
4452
4453     MaxWidthCalculator calculator(m_clientArea, renderer,
4454                                   GetModel(), column->GetModelColumn());
4455
4456     if ( m_headerArea )
4457     {
4458         int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
4459         // Labels on native MSW header are indented on both sides
4460         header_width +=
4461             wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
4462         calculator.UpdateWithWidth(header_width);
4463     }
4464
4465     // The code below deserves some explanation. For very large controls, we
4466     // simply can't afford to calculate sizes for all items, it takes too
4467     // long. So the best we can do is to check the first and the last N/2
4468     // items in the control for some sufficiently large N and calculate best
4469     // sizes from that. That can result in the calculated best width being too
4470     // small for some outliers, but it's better to get slightly imperfect
4471     // result than to wait several seconds after every update. To avoid highly
4472     // visible miscalculations, we also include all currently visible items
4473     // no matter what.  Finally, the value of N is determined dynamically by
4474     // measuring how much time we spent on the determining item widths so far.
4475
4476 #if wxUSE_STOPWATCH
4477     int top_part_end = count;
4478     static const long CALC_TIMEOUT = 20/*ms*/;
4479     // don't call wxStopWatch::Time() too often
4480     static const unsigned CALC_CHECK_FREQ = 100;
4481     wxStopWatch timer;
4482 #else
4483     // use some hard-coded limit, that's the best we can do without timer
4484     int top_part_end = wxMin(500, count);
4485 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4486
4487     int row = 0;
4488
4489     for ( row = 0; row < top_part_end; row++ )
4490     {
4491 #if wxUSE_STOPWATCH
4492         if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4493              timer.Time() > CALC_TIMEOUT )
4494             break;
4495 #endif // wxUSE_STOPWATCH
4496         calculator.UpdateWithRow(row);
4497     }
4498
4499     // row is the first unmeasured item now; that's our value of N/2
4500
4501     if ( row < count )
4502     {
4503         top_part_end = row;
4504
4505         // add bottom N/2 items now:
4506         const int bottom_part_start = wxMax(row, count - row);
4507         for ( row = bottom_part_start; row < count; row++ )
4508         {
4509             calculator.UpdateWithRow(row);
4510         }
4511
4512         // finally, include currently visible items in the calculation:
4513         const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4514         int first_visible = m_clientArea->GetLineAt(origin.y);
4515         int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4516
4517         first_visible = wxMax(first_visible, top_part_end);
4518         last_visible = wxMin(bottom_part_start, last_visible);
4519
4520         for ( row = first_visible; row < last_visible; row++ )
4521         {
4522             calculator.UpdateWithRow(row);
4523         }
4524
4525         wxLogTrace("dataview",
4526                    "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4527                    top_part_end,
4528                    count - bottom_part_start,
4529                    wxMax(0, last_visible - first_visible),
4530                    count);
4531     }
4532
4533     int max_width = calculator.GetMaxWidth();
4534     if ( max_width > 0 )
4535         max_width += 2 * PADDING_RIGHTLEFT;
4536
4537     const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
4538     return max_width;
4539 }
4540
4541 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4542                                 unsigned int WXUNUSED(new_pos))
4543 {
4544     // do _not_ reorder m_cols elements here, they should always be in the
4545     // order in which columns were added, we only display the columns in
4546     // different order
4547     m_clientArea->UpdateDisplay();
4548 }
4549
4550 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4551 {
4552     wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4553     if (!ret)
4554         return false;
4555
4556     m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4557     m_cols.Erase(ret);
4558     OnColumnsCountChanged();
4559
4560     return true;
4561 }
4562
4563 bool wxDataViewCtrl::ClearColumns()
4564 {
4565     SetExpanderColumn(NULL);
4566     m_cols.Clear();
4567     m_colsBestWidths.clear();
4568     OnColumnsCountChanged();
4569     return true;
4570 }
4571
4572 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4573 {
4574     m_colsBestWidths[idx] = 0;
4575     m_colsDirty = true;
4576 }
4577
4578 void wxDataViewCtrl::InvalidateColBestWidths()
4579 {
4580     m_colsBestWidths.clear();
4581     m_colsBestWidths.resize(m_cols.size());
4582     m_colsDirty = true;
4583 }
4584
4585 void wxDataViewCtrl::UpdateColWidths()
4586 {
4587     if ( !m_headerArea )
4588         return;
4589
4590     const unsigned len = m_colsBestWidths.size();
4591     for ( unsigned i = 0; i < len; i++ )
4592     {
4593         if ( m_colsBestWidths[i] == 0 )
4594             m_headerArea->UpdateColumn(i);
4595     }
4596 }
4597
4598 void wxDataViewCtrl::OnInternalIdle()
4599 {
4600     wxDataViewCtrlBase::OnInternalIdle();
4601
4602     if ( m_colsDirty )
4603     {
4604         m_colsDirty = false;
4605         UpdateColWidths();
4606     }
4607 }
4608
4609 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
4610 {
4611 #if 1
4612     unsigned int len = GetColumnCount();
4613     for ( unsigned int i = 0; i < len; i++ )
4614     {
4615         wxDataViewColumn * col = GetColumnAt(i);
4616         if (column==col)
4617             return i;
4618     }
4619
4620     return wxNOT_FOUND;
4621 #else
4622     // This returns the position in pixels which is not what we want.
4623     int ret = 0,
4624         dummy = 0;
4625     unsigned int len = GetColumnCount();
4626     for ( unsigned int i = 0; i < len; i++ )
4627     {
4628         wxDataViewColumn * col = GetColumnAt(i);
4629         if (col->IsHidden())
4630             continue;
4631         ret += col->GetWidth();
4632         if (column==col)
4633         {
4634             CalcScrolledPosition( ret, dummy, &ret, &dummy );
4635             break;
4636         }
4637     }
4638     return ret;
4639 #endif
4640 }
4641
4642 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
4643 {
4644     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
4645                                             : GetColumn(m_sortingColumnIdx);
4646 }
4647
4648 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
4649 {
4650     return GetItemByRow(m_clientArea->GetCurrentRow());
4651 }
4652
4653 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
4654 {
4655     const int row = m_clientArea->GetRowByItem(item);
4656
4657     const unsigned oldCurrent = m_clientArea->GetCurrentRow();
4658     if ( static_cast<unsigned>(row) != oldCurrent )
4659     {
4660         m_clientArea->ChangeCurrentRow(row);
4661         m_clientArea->RefreshRow(oldCurrent);
4662         m_clientArea->RefreshRow(row);
4663     }
4664 }
4665
4666 int wxDataViewCtrl::GetSelectedItemsCount() const
4667 {
4668     return m_clientArea->GetSelections().size();
4669 }
4670
4671 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
4672 {
4673     sel.Empty();
4674     const wxDataViewSelection& selections = m_clientArea->GetSelections();
4675
4676     const size_t len = selections.size();
4677     for ( size_t i = 0; i < len; i++ )
4678     {
4679         wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
4680         if ( item.IsOk() )
4681         {
4682             sel.Add(item);
4683         }
4684         else
4685         {
4686             wxFAIL_MSG( "invalid item in selection - bad internal state" );
4687         }
4688     }
4689
4690     return sel.size();
4691 }
4692
4693 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
4694 {
4695     wxDataViewSelection selection(wxDataViewSelectionCmp);
4696
4697     wxDataViewItem last_parent;
4698
4699     int len = sel.GetCount();
4700     for( int i = 0; i < len; i ++ )
4701     {
4702         wxDataViewItem item = sel[i];
4703         wxDataViewItem parent = GetModel()->GetParent( item );
4704         if (parent)
4705         {
4706             if (parent != last_parent)
4707                 ExpandAncestors(item);
4708         }
4709
4710         last_parent = parent;
4711         int row = m_clientArea->GetRowByItem( item );
4712         if( row >= 0 )
4713             selection.Add( static_cast<unsigned int>(row) );
4714     }
4715
4716     m_clientArea->SetSelections( selection );
4717 }
4718
4719 void wxDataViewCtrl::Select( const wxDataViewItem & item )
4720 {
4721     ExpandAncestors( item );
4722
4723     int row = m_clientArea->GetRowByItem( item );
4724     if( row >= 0 )
4725     {
4726         // Unselect all rows before select another in the single select mode
4727         if (m_clientArea->IsSingleSel())
4728             m_clientArea->SelectAllRows(false);
4729
4730         m_clientArea->SelectRow(row, true);
4731
4732         // Also set focus to the selected item
4733         m_clientArea->ChangeCurrentRow( row );
4734     }
4735 }
4736
4737 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
4738 {
4739     int row = m_clientArea->GetRowByItem( item );
4740     if( row >= 0 )
4741         m_clientArea->SelectRow(row, false);
4742 }
4743
4744 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
4745 {
4746     int row = m_clientArea->GetRowByItem( item );
4747     if( row >= 0 )
4748     {
4749         return m_clientArea->IsRowSelected(row);
4750     }
4751     return false;
4752 }
4753
4754 void wxDataViewCtrl::SelectAll()
4755 {
4756     m_clientArea->SelectAllRows(true);
4757 }
4758
4759 void wxDataViewCtrl::UnselectAll()
4760 {
4761     m_clientArea->SelectAllRows(false);
4762 }
4763
4764 void wxDataViewCtrl::EnsureVisible( int row, int column )
4765 {
4766     if( row < 0 )
4767         row = 0;
4768     if( row > (int) m_clientArea->GetRowCount() )
4769         row = m_clientArea->GetRowCount();
4770
4771     int first = m_clientArea->GetFirstVisibleRow();
4772     int last = m_clientArea->GetLastVisibleRow();
4773     if( row < first )
4774         m_clientArea->ScrollTo( row, column );
4775     else if( row > last )
4776         m_clientArea->ScrollTo( row - last + first, column );
4777     else
4778         m_clientArea->ScrollTo( first, column );
4779 }
4780
4781 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
4782 {
4783     ExpandAncestors( item );
4784
4785     m_clientArea->RecalculateDisplay();
4786
4787     int row = m_clientArea->GetRowByItem(item);
4788     if( row >= 0 )
4789     {
4790         if( column == NULL )
4791             EnsureVisible(row, -1);
4792         else
4793             EnsureVisible( row, GetColumnIndex(column) );
4794     }
4795
4796 }
4797
4798 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
4799                               wxDataViewColumn* &column ) const
4800 {
4801     m_clientArea->HitTest(point, item, column);
4802 }
4803
4804 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
4805                                     const wxDataViewColumn* column ) const
4806 {
4807     return m_clientArea->GetItemRect(item, column);
4808 }
4809
4810 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
4811 {
4812     return m_clientArea->GetItemByRow( row );
4813 }
4814
4815 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
4816 {
4817     return m_clientArea->GetRowByItem( item );
4818 }
4819
4820 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
4821 {
4822     ExpandAncestors( item );
4823
4824     int row = m_clientArea->GetRowByItem( item );
4825     if (row != -1)
4826         m_clientArea->Expand(row);
4827 }
4828
4829 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
4830 {
4831     int row = m_clientArea->GetRowByItem( item );
4832     if (row != -1)
4833         m_clientArea->Collapse(row);
4834 }
4835
4836 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
4837 {
4838     int row = m_clientArea->GetRowByItem( item );
4839     if (row != -1)
4840         return m_clientArea->IsExpanded(row);
4841     return false;
4842 }
4843
4844 void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
4845 {
4846     wxDataViewColumn* col = GetColumn( column );
4847     if (!col)
4848         return;
4849
4850     wxDataViewRenderer* renderer = col->GetRenderer();
4851     if (renderer->GetMode() != wxDATAVIEW_CELL_EDITABLE)
4852         return;
4853
4854     const wxRect itemRect = GetItemRect(item, col);
4855     renderer->StartEditing(item, itemRect);
4856 }
4857
4858 #endif // !wxUSE_GENERICDATAVIEWCTRL
4859
4860 #endif // wxUSE_DATAVIEWCTRL