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Document domain parameter of wxTranslations::GetTranslatedString().
[wxWidgets.git] / 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 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #ifdef __BORLANDC__
14 #pragma hdrstop
15 #endif
16
17 #if wxUSE_DATAVIEWCTRL
18
19 #include "wx/dataview.h"
20
21 #ifdef wxUSE_GENERICDATAVIEWCTRL
22
23 #ifndef WX_PRECOMP
24 #ifdef __WXMSW__
25 #include "wx/msw/private.h"
26 #include "wx/msw/wrapwin.h"
27 #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
28 #endif
29 #include "wx/sizer.h"
30 #include "wx/log.h"
31 #include "wx/dcclient.h"
32 #include "wx/timer.h"
33 #include "wx/settings.h"
34 #include "wx/msgdlg.h"
35 #include "wx/dcscreen.h"
36 #include "wx/frame.h"
37 #endif
38
39 #include "wx/stockitem.h"
40 #include "wx/popupwin.h"
41 #include "wx/renderer.h"
42 #include "wx/dcbuffer.h"
43 #include "wx/icon.h"
44 #include "wx/list.h"
45 #include "wx/listimpl.cpp"
46 #include "wx/imaglist.h"
47 #include "wx/headerctrl.h"
48 #include "wx/dnd.h"
49 #include "wx/stopwatch.h"
50 #include "wx/weakref.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
83 // The column is either the index of the column to be used for sorting or one
84 // of the special values in this enum:
85 enum
86 {
87 // Sort when we're thawed later.
88 SortColumn_OnThaw = -3,
89
90 // Don't sort at all.
91 SortColumn_None = -2,
92
93 // Sort using the model default sort order.
94 SortColumn_Default = -1
95 };
96
97 static int g_column = SortColumn_None;
98 static bool g_asending = true;
99
100 // ----------------------------------------------------------------------------
101 // helper functions
102 // ----------------------------------------------------------------------------
103
104 namespace
105 {
106
107 // Return the expander column or, if it is not set, the first column and also
108 // set it as the expander one for the future.
109 wxDataViewColumn* GetExpanderColumnOrFirstOne(wxDataViewCtrl* dataview)
110 {
111 wxDataViewColumn* expander = dataview->GetExpanderColumn();
112 if (!expander)
113 {
114 // TODO-RTL: last column for RTL support
115 expander = dataview->GetColumnAt( 0 );
116 dataview->SetExpanderColumn(expander);
117 }
118
119 return expander;
120 }
121
122 } // anonymous namespace
123
124 //-----------------------------------------------------------------------------
125 // wxDataViewColumn
126 //-----------------------------------------------------------------------------
127
128 void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
129 {
130 m_width = width;
131 m_minWidth = 0;
132 m_align = align;
133 m_flags = flags;
134 m_sort = false;
135 m_sortAscending = true;
136 }
137
138 int wxDataViewColumn::GetWidth() const
139 {
140 switch ( m_width )
141 {
142 case wxCOL_WIDTH_DEFAULT:
143 return wxDVC_DEFAULT_WIDTH;
144
145 case wxCOL_WIDTH_AUTOSIZE:
146 wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
147 return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
148
149 default:
150 return m_width;
151 }
152 }
153
154 void wxDataViewColumn::UpdateDisplay()
155 {
156 if (m_owner)
157 {
158 int idx = m_owner->GetColumnIndex( this );
159 m_owner->OnColumnChange( idx );
160 }
161 }
162
163 void wxDataViewColumn::UnsetAsSortKey()
164 {
165 m_sort = false;
166
167 if ( m_owner )
168 m_owner->SetSortingColumnIndex(wxNOT_FOUND);
169
170 UpdateDisplay();
171 }
172
173 void wxDataViewColumn::SetSortOrder(bool ascending)
174 {
175 if ( !m_owner )
176 return;
177
178 // First unset the old sort column if any.
179 int oldSortKey = m_owner->GetSortingColumnIndex();
180 if ( oldSortKey != wxNOT_FOUND )
181 {
182 m_owner->GetColumn(oldSortKey)->UnsetAsSortKey();
183 }
184
185 // Now set this one as the new sort column.
186 const int idx = m_owner->GetColumnIndex(this);
187 m_owner->SetSortingColumnIndex(idx);
188
189 m_sort = true;
190 m_sortAscending = ascending;
191
192 // Call this directly instead of using UpdateDisplay() as we already have
193 // the column index, no need to look it up again.
194 m_owner->OnColumnChange(idx);
195 }
196
197 //-----------------------------------------------------------------------------
198 // wxDataViewHeaderWindow
199 //-----------------------------------------------------------------------------
200
201 class wxDataViewHeaderWindow : public wxHeaderCtrl
202 {
203 public:
204 wxDataViewHeaderWindow(wxDataViewCtrl *parent)
205 : wxHeaderCtrl(parent)
206 {
207 }
208
209 wxDataViewCtrl *GetOwner() const
210 { return static_cast<wxDataViewCtrl *>(GetParent()); }
211
212 protected:
213 // implement/override wxHeaderCtrl functions by forwarding them to the main
214 // control
215 virtual const wxHeaderColumn& GetColumn(unsigned int idx) const
216 {
217 return *(GetOwner()->GetColumn(idx));
218 }
219
220 virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
221 {
222 wxDataViewCtrl * const owner = GetOwner();
223
224 int widthContents = owner->GetBestColumnWidth(idx);
225 owner->GetColumn(idx)->SetWidth(wxMax(widthTitle, widthContents));
226 owner->OnColumnChange(idx);
227
228 return true;
229 }
230
231 private:
232 bool SendEvent(wxEventType type, unsigned int n)
233 {
234 wxDataViewCtrl * const owner = GetOwner();
235 wxDataViewEvent event(type, owner->GetId());
236
237 event.SetEventObject(owner);
238 event.SetColumn(n);
239 event.SetDataViewColumn(owner->GetColumn(n));
240 event.SetModel(owner->GetModel());
241
242 // for events created by wxDataViewHeaderWindow the
243 // row / value fields are not valid
244 return owner->ProcessWindowEvent(event);
245 }
246
247 void OnClick(wxHeaderCtrlEvent& event)
248 {
249 const unsigned idx = event.GetColumn();
250
251 if ( SendEvent(wxEVT_DATAVIEW_COLUMN_HEADER_CLICK, idx) )
252 return;
253
254 // default handling for the column click is to sort by this column or
255 // toggle its sort order
256 wxDataViewCtrl * const owner = GetOwner();
257 wxDataViewColumn * const col = owner->GetColumn(idx);
258 if ( !col->IsSortable() )
259 {
260 // no default handling for non-sortable columns
261 event.Skip();
262 return;
263 }
264
265 if ( col->IsSortKey() )
266 {
267 // already using this column for sorting, just change the order
268 col->ToggleSortOrder();
269 }
270 else // not using this column for sorting yet
271 {
272 col->SetSortOrder(true);
273 }
274
275 wxDataViewModel * const model = owner->GetModel();
276 if ( model )
277 model->Resort();
278
279 owner->OnColumnChange(idx);
280
281 SendEvent(wxEVT_DATAVIEW_COLUMN_SORTED, idx);
282 }
283
284 void OnRClick(wxHeaderCtrlEvent& event)
285 {
286 if ( !SendEvent(wxEVT_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK,
287 event.GetColumn()) )
288 event.Skip();
289 }
290
291 void OnResize(wxHeaderCtrlEvent& event)
292 {
293 wxDataViewCtrl * const owner = GetOwner();
294
295 const unsigned col = event.GetColumn();
296 owner->GetColumn(col)->SetWidth(event.GetWidth());
297 GetOwner()->OnColumnChange(col);
298 }
299
300 void OnEndReorder(wxHeaderCtrlEvent& event)
301 {
302 wxDataViewCtrl * const owner = GetOwner();
303 owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
304 event.GetNewOrder());
305 }
306
307 DECLARE_EVENT_TABLE()
308 wxDECLARE_NO_COPY_CLASS(wxDataViewHeaderWindow);
309 };
310
311 BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
312 EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
313 EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
314
315 EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
316 EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)
317
318 EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
319 END_EVENT_TABLE()
320
321 //-----------------------------------------------------------------------------
322 // wxDataViewRenameTimer
323 //-----------------------------------------------------------------------------
324
325 class wxDataViewRenameTimer: public wxTimer
326 {
327 private:
328 wxDataViewMainWindow *m_owner;
329
330 public:
331 wxDataViewRenameTimer( wxDataViewMainWindow *owner );
332 void Notify();
333 };
334
335 //-----------------------------------------------------------------------------
336 // wxDataViewTreeNode
337 //-----------------------------------------------------------------------------
338
339 class wxDataViewTreeNode;
340 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
341
342 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
343 wxDataViewTreeNode ** node2);
344
345 class wxDataViewTreeNode
346 {
347 public:
348 wxDataViewTreeNode(wxDataViewTreeNode *parent, const wxDataViewItem& item)
349 : m_parent(parent),
350 m_item(item),
351 m_branchData(NULL)
352 {
353 }
354
355 ~wxDataViewTreeNode()
356 {
357 if ( m_branchData )
358 {
359 wxDataViewTreeNodes& nodes = m_branchData->children;
360 for ( wxDataViewTreeNodes::iterator i = nodes.begin();
361 i != nodes.end();
362 ++i )
363 {
364 delete *i;
365 }
366
367 delete m_branchData;
368 }
369 }
370
371 static wxDataViewTreeNode* CreateRootNode()
372 {
373 wxDataViewTreeNode *n = new wxDataViewTreeNode(NULL, wxDataViewItem());
374 n->m_branchData = new BranchNodeData;
375 n->m_branchData->open = true;
376 return n;
377 }
378
379 wxDataViewTreeNode * GetParent() const { return m_parent; }
380
381 const wxDataViewTreeNodes& GetChildNodes() const
382 {
383 wxASSERT( m_branchData != NULL );
384 return m_branchData->children;
385 }
386
387 void InsertChild(wxDataViewTreeNode *node, unsigned index)
388 {
389 if ( !m_branchData )
390 m_branchData = new BranchNodeData;
391
392 m_branchData->children.Insert(node, index);
393
394 // TODO: insert into sorted array directly in O(log n) instead of resorting in O(n log n)
395 if (g_column >= -1)
396 m_branchData->children.Sort( &wxGenericTreeModelNodeCmp );
397 }
398
399 void RemoveChild(wxDataViewTreeNode *node)
400 {
401 wxCHECK_RET( m_branchData != NULL, "leaf node doesn't have children" );
402 m_branchData->children.Remove(node);
403 }
404
405 // returns position of child node for given item in children list or wxNOT_FOUND
406 int FindChildByItem(const wxDataViewItem& item) const
407 {
408 if ( !m_branchData )
409 return wxNOT_FOUND;
410
411 const wxDataViewTreeNodes& nodes = m_branchData->children;
412 const int len = nodes.size();
413 for ( int i = 0; i < len; i++ )
414 {
415 if ( nodes[i]->m_item == item )
416 return i;
417 }
418 return wxNOT_FOUND;
419 }
420
421 const wxDataViewItem & GetItem() const { return m_item; }
422 void SetItem( const wxDataViewItem & item ) { m_item = item; }
423
424 int GetIndentLevel() const
425 {
426 int ret = 0;
427 const wxDataViewTreeNode * node = this;
428 while( node->GetParent()->GetParent() != NULL )
429 {
430 node = node->GetParent();
431 ret ++;
432 }
433 return ret;
434 }
435
436 bool IsOpen() const
437 {
438 return m_branchData && m_branchData->open;
439 }
440
441 void ToggleOpen()
442 {
443 // We do not allow the (invisible) root node to be collapsed because
444 // there is no way to expand it again.
445 if ( !m_parent )
446 return;
447
448 wxCHECK_RET( m_branchData != NULL, "can't open leaf node" );
449
450 int sum = 0;
451
452 const wxDataViewTreeNodes& nodes = m_branchData->children;
453 const int len = nodes.GetCount();
454 for ( int i = 0;i < len; i ++)
455 sum += 1 + nodes[i]->GetSubTreeCount();
456
457 if (m_branchData->open)
458 {
459 ChangeSubTreeCount(-sum);
460 m_branchData->open = !m_branchData->open;
461 }
462 else
463 {
464 m_branchData->open = !m_branchData->open;
465 ChangeSubTreeCount(+sum);
466 }
467 }
468
469 // "HasChildren" property corresponds to model's IsContainer(). Note that it may be true
470 // even if GetChildNodes() is empty; see below.
471 bool HasChildren() const
472 {
473 return m_branchData != NULL;
474 }
475
476 void SetHasChildren(bool has)
477 {
478 // The invisible root item always has children, so ignore any attempts
479 // to change this.
480 if ( !m_parent )
481 return;
482
483 if ( !has )
484 {
485 wxDELETE(m_branchData);
486 }
487 else if ( m_branchData == NULL )
488 {
489 m_branchData = new BranchNodeData;
490 }
491 }
492
493 int GetSubTreeCount() const
494 {
495 return m_branchData ? m_branchData->subTreeCount : 0;
496 }
497
498 void ChangeSubTreeCount( int num )
499 {
500 wxASSERT( m_branchData != NULL );
501
502 if( !m_branchData->open )
503 return;
504
505 m_branchData->subTreeCount += num;
506 wxASSERT( m_branchData->subTreeCount >= 0 );
507
508 if( m_parent )
509 m_parent->ChangeSubTreeCount(num);
510 }
511
512 void Resort()
513 {
514 if ( !m_branchData )
515 return;
516
517 if (g_column >= -1)
518 {
519 wxDataViewTreeNodes& nodes = m_branchData->children;
520
521 nodes.Sort( &wxGenericTreeModelNodeCmp );
522 int len = nodes.GetCount();
523 for (int i = 0; i < len; i ++)
524 {
525 if ( nodes[i]->HasChildren() )
526 nodes[i]->Resort();
527 }
528 }
529 }
530
531
532 private:
533 wxDataViewTreeNode *m_parent;
534
535 // Corresponding model item.
536 wxDataViewItem m_item;
537
538 // Data specific to non-leaf (branch, inner) nodes. They are kept in a
539 // separate struct in order to conserve memory.
540 struct BranchNodeData
541 {
542 BranchNodeData()
543 : open(false),
544 subTreeCount(0)
545 {
546 }
547
548 // Child nodes. Note that this may be empty even if m_hasChildren in
549 // case this branch of the tree wasn't expanded and realized yet.
550 wxDataViewTreeNodes children;
551
552 // Is the branch node currently open (expanded)?
553 bool open;
554
555 // Total count of expanded (i.e. visible with the help of some
556 // scrolling) items in the subtree, but excluding this node. I.e. it is
557 // 0 for leaves and is the number of rows the subtree occupies for
558 // branch nodes.
559 int subTreeCount;
560 };
561
562 BranchNodeData *m_branchData;
563 };
564
565
566 int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
567 wxDataViewTreeNode ** node2)
568 {
569 return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
570 }
571
572
573 //-----------------------------------------------------------------------------
574 // wxDataViewMainWindow
575 //-----------------------------------------------------------------------------
576
577 WX_DEFINE_SORTED_ARRAY_SIZE_T(unsigned int, wxDataViewSelection);
578
579 class wxDataViewMainWindow: public wxWindow
580 {
581 public:
582 wxDataViewMainWindow( wxDataViewCtrl *parent,
583 wxWindowID id,
584 const wxPoint &pos = wxDefaultPosition,
585 const wxSize &size = wxDefaultSize,
586 const wxString &name = wxT("wxdataviewctrlmainwindow") );
587 virtual ~wxDataViewMainWindow();
588
589 bool IsList() const { return GetModel()->IsListModel(); }
590 bool IsVirtualList() const { return m_root == NULL; }
591
592 // notifications from wxDataViewModel
593 bool ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item );
594 bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item );
595 bool ItemChanged( const wxDataViewItem &item );
596 bool ValueChanged( const wxDataViewItem &item, unsigned int model_column );
597 bool Cleared();
598 void Resort()
599 {
600 if (!IsVirtualList())
601 {
602 SortPrepare();
603 m_root->Resort();
604 }
605 UpdateDisplay();
606 }
607
608 // Override the base class method to resort if needed, i.e. if
609 // SortPrepare() was called -- and ignored -- while we were frozen.
610 virtual void DoThaw()
611 {
612 if ( g_column == SortColumn_OnThaw )
613 {
614 Resort();
615 g_column = SortColumn_None;
616 }
617
618 wxWindow::DoThaw();
619 }
620
621 void SortPrepare()
622 {
623 g_model = GetModel();
624
625 wxDataViewColumn* col = GetOwner()->GetSortingColumn();
626 if( !col )
627 {
628 if (g_model->HasDefaultCompare())
629 {
630 // See below for the explanation of IsFrozen() test.
631 if ( IsFrozen() )
632 g_column = SortColumn_OnThaw;
633 else
634 g_column = SortColumn_Default;
635 }
636 else
637 g_column = SortColumn_None;
638
639 g_asending = true;
640 return;
641 }
642
643 // Avoid sorting while the window is frozen, this allows to quickly add
644 // many items without resorting after each addition and only resort
645 // them all at once when the window is finally thawed, see above.
646 if ( IsFrozen() )
647 {
648 g_column = SortColumn_OnThaw;
649 return;
650 }
651
652 g_column = col->GetModelColumn();
653 g_asending = col->IsSortOrderAscending();
654 }
655
656 void SetOwner( wxDataViewCtrl* owner ) { m_owner = owner; }
657 wxDataViewCtrl *GetOwner() { return m_owner; }
658 const wxDataViewCtrl *GetOwner() const { return m_owner; }
659
660 wxDataViewModel* GetModel() { return GetOwner()->GetModel(); }
661 const wxDataViewModel* GetModel() const { return GetOwner()->GetModel(); }
662
663 #if wxUSE_DRAG_AND_DROP
664 wxBitmap CreateItemBitmap( unsigned int row, int &indent );
665 #endif // wxUSE_DRAG_AND_DROP
666 void OnPaint( wxPaintEvent &event );
667 void OnCharHook( wxKeyEvent &event );
668 void OnChar( wxKeyEvent &event );
669 void OnVerticalNavigation(int delta, const wxKeyEvent& event);
670 void OnLeftKey();
671 void OnRightKey();
672 void OnMouse( wxMouseEvent &event );
673 void OnSetFocus( wxFocusEvent &event );
674 void OnKillFocus( wxFocusEvent &event );
675
676 void UpdateDisplay();
677 void RecalculateDisplay();
678 void OnInternalIdle();
679
680 void OnRenameTimer();
681
682 void ScrollWindow( int dx, int dy, const wxRect *rect = NULL );
683 void ScrollTo( int rows, int column );
684
685 unsigned GetCurrentRow() const { return m_currentRow; }
686 bool HasCurrentRow() { return m_currentRow != (unsigned int)-1; }
687 void ChangeCurrentRow( unsigned int row );
688 bool TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward);
689
690 wxDataViewColumn *GetCurrentColumn() const { return m_currentCol; }
691 void ClearCurrentColumn() { m_currentCol = NULL; }
692
693 bool IsSingleSel() const { return !GetParent()->HasFlag(wxDV_MULTIPLE); }
694 bool IsEmpty() { return GetRowCount() == 0; }
695
696 int GetCountPerPage() const;
697 int GetEndOfLastCol() const;
698 unsigned int GetFirstVisibleRow() const;
699
700 // I change this method to un const because in the tree view,
701 // the displaying number of the tree are changing along with the
702 // expanding/collapsing of the tree nodes
703 unsigned int GetLastVisibleRow();
704 unsigned int GetRowCount() const;
705
706 const wxDataViewSelection& GetSelections() const { return m_selection; }
707 void SetSelections( const wxDataViewSelection & sel )
708 { m_selection = sel; UpdateDisplay(); }
709 void Select( const wxArrayInt& aSelections );
710 void SelectAllRows( bool on );
711 void SelectRow( unsigned int row, bool on );
712 void SelectRows( unsigned int from, unsigned int to, bool on );
713 void ReverseRowSelection( unsigned int row );
714 bool IsRowSelected( unsigned int row );
715 void SendSelectionChangedEvent( const wxDataViewItem& item);
716
717 void RefreshRow( unsigned int row );
718 void RefreshRows( unsigned int from, unsigned int to );
719 void RefreshRowsAfter( unsigned int firstRow );
720
721 // returns the colour to be used for drawing the rules
722 wxColour GetRuleColour() const
723 {
724 return wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT);
725 }
726
727 wxRect GetLineRect( unsigned int row ) const;
728
729 int GetLineStart( unsigned int row ) const; // row * m_lineHeight in fixed mode
730 int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
731 int GetLineAt( unsigned int y ) const; // y / m_lineHeight in fixed mode
732
733 void SetRowHeight( int lineHeight ) { m_lineHeight = lineHeight; }
734 int GetRowHeight() const { return m_lineHeight; }
735 int GetDefaultRowHeight() const;
736
737 // Some useful functions for row and item mapping
738 wxDataViewItem GetItemByRow( unsigned int row ) const;
739 int GetRowByItem( const wxDataViewItem & item ) const;
740
741 wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
742 // We did not need this temporarily
743 // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
744
745 // Methods for building the mapping tree
746 void BuildTree( wxDataViewModel * model );
747 void DestroyTree();
748 void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
749 wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
750
751 void Expand( unsigned int row );
752 void Collapse( unsigned int row );
753 bool IsExpanded( unsigned int row ) const;
754 bool HasChildren( unsigned int row ) const;
755
756 #if wxUSE_DRAG_AND_DROP
757 bool EnableDragSource( const wxDataFormat &format );
758 bool EnableDropTarget( const wxDataFormat &format );
759
760 void RemoveDropHint();
761 wxDragResult OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
762 bool OnDrop( wxDataFormat format, wxCoord x, wxCoord y );
763 wxDragResult OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def );
764 void OnLeave();
765 #endif // wxUSE_DRAG_AND_DROP
766
767 void OnColumnsCountChanged();
768
769 // Called by wxDataViewCtrl and our own OnRenameTimer() to start edit the
770 // specified item in the given column.
771 void StartEditing(const wxDataViewItem& item, const wxDataViewColumn* col);
772
773 private:
774 int RecalculateCount() const;
775
776 // Return false only if the event was vetoed by its handler.
777 bool SendExpanderEvent(wxEventType type, const wxDataViewItem& item);
778
779 wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
780
781 wxDataViewColumn *FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode);
782
783 bool IsCellEditableInMode(const wxDataViewItem& item, const wxDataViewColumn *col, wxDataViewCellMode mode) const;
784
785 void DrawCellBackground( wxDataViewRenderer* cell, wxDC& dc, const wxRect& rect );
786
787 private:
788 wxDataViewCtrl *m_owner;
789 int m_lineHeight;
790 bool m_dirty;
791
792 wxDataViewColumn *m_currentCol;
793 unsigned int m_currentRow;
794 wxDataViewSelection m_selection;
795
796 wxDataViewRenameTimer *m_renameTimer;
797 bool m_lastOnSame;
798
799 bool m_hasFocus;
800 bool m_useCellFocus;
801 bool m_currentColSetByKeyboard;
802
803 #if wxUSE_DRAG_AND_DROP
804 int m_dragCount;
805 wxPoint m_dragStart;
806
807 bool m_dragEnabled;
808 wxDataFormat m_dragFormat;
809
810 bool m_dropEnabled;
811 wxDataFormat m_dropFormat;
812 bool m_dropHint;
813 unsigned int m_dropHintLine;
814 #endif // wxUSE_DRAG_AND_DROP
815
816 // for double click logic
817 unsigned int m_lineLastClicked,
818 m_lineBeforeLastClicked,
819 m_lineSelectSingleOnUp;
820
821 // the pen used to draw horiz/vertical rules
822 wxPen m_penRule;
823
824 // the pen used to draw the expander and the lines
825 wxPen m_penExpander;
826
827 // This is the tree structure of the model
828 wxDataViewTreeNode * m_root;
829 int m_count;
830
831 // This is the tree node under the cursor
832 wxDataViewTreeNode * m_underMouse;
833
834 // The control used for editing or NULL.
835 wxWeakRef<wxWindow> m_editorCtrl;
836
837 // Id m_editorCtrl is non-NULL, pointer to the associated renderer.
838 wxDataViewRenderer* m_editorRenderer;
839
840 private:
841 DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
842 DECLARE_EVENT_TABLE()
843 };
844
845 // ---------------------------------------------------------
846 // wxGenericDataViewModelNotifier
847 // ---------------------------------------------------------
848
849 class wxGenericDataViewModelNotifier: public wxDataViewModelNotifier
850 {
851 public:
852 wxGenericDataViewModelNotifier( wxDataViewMainWindow *mainWindow )
853 { m_mainWindow = mainWindow; }
854
855 virtual bool ItemAdded( const wxDataViewItem & parent, const wxDataViewItem & item )
856 { return m_mainWindow->ItemAdded( parent , item ); }
857 virtual bool ItemDeleted( const wxDataViewItem &parent, const wxDataViewItem &item )
858 { return m_mainWindow->ItemDeleted( parent, item ); }
859 virtual bool ItemChanged( const wxDataViewItem & item )
860 { return m_mainWindow->ItemChanged(item); }
861 virtual bool ValueChanged( const wxDataViewItem & item , unsigned int col )
862 { return m_mainWindow->ValueChanged( item, col ); }
863 virtual bool Cleared()
864 { return m_mainWindow->Cleared(); }
865 virtual void Resort()
866 { m_mainWindow->Resort(); }
867
868 wxDataViewMainWindow *m_mainWindow;
869 };
870
871 // ---------------------------------------------------------
872 // wxDataViewRenderer
873 // ---------------------------------------------------------
874
875 IMPLEMENT_ABSTRACT_CLASS(wxDataViewRenderer, wxDataViewRendererBase)
876
877 wxDataViewRenderer::wxDataViewRenderer( const wxString &varianttype,
878 wxDataViewCellMode mode,
879 int align) :
880 wxDataViewCustomRendererBase( varianttype, mode, align )
881 {
882 m_align = align;
883 m_mode = mode;
884 m_ellipsizeMode = wxELLIPSIZE_MIDDLE;
885 m_dc = NULL;
886 }
887
888 wxDataViewRenderer::~wxDataViewRenderer()
889 {
890 delete m_dc;
891 }
892
893 wxDC *wxDataViewRenderer::GetDC()
894 {
895 if (m_dc == NULL)
896 {
897 if (GetOwner() == NULL)
898 return NULL;
899 if (GetOwner()->GetOwner() == NULL)
900 return NULL;
901 m_dc = new wxClientDC( GetOwner()->GetOwner() );
902 }
903
904 return m_dc;
905 }
906
907 void wxDataViewRenderer::SetAlignment( int align )
908 {
909 m_align=align;
910 }
911
912 int wxDataViewRenderer::GetAlignment() const
913 {
914 return m_align;
915 }
916
917 // ---------------------------------------------------------
918 // wxDataViewCustomRenderer
919 // ---------------------------------------------------------
920
921 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
922
923 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
924 wxDataViewCellMode mode, int align ) :
925 wxDataViewRenderer( varianttype, mode, align )
926 {
927 }
928
929 // ---------------------------------------------------------
930 // wxDataViewTextRenderer
931 // ---------------------------------------------------------
932
933 IMPLEMENT_CLASS(wxDataViewTextRenderer, wxDataViewRenderer)
934
935 wxDataViewTextRenderer::wxDataViewTextRenderer( const wxString &varianttype,
936 wxDataViewCellMode mode, int align ) :
937 wxDataViewRenderer( varianttype, mode, align )
938 {
939 }
940
941 bool wxDataViewTextRenderer::SetValue( const wxVariant &value )
942 {
943 m_text = value.GetString();
944
945 return true;
946 }
947
948 bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
949 {
950 return false;
951 }
952
953 bool wxDataViewTextRenderer::HasEditorCtrl() const
954 {
955 return true;
956 }
957
958 wxWindow* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
959 wxRect labelRect, const wxVariant &value )
960 {
961 wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
962 wxPoint(labelRect.x,labelRect.y),
963 wxSize(labelRect.width,labelRect.height),
964 wxTE_PROCESS_ENTER );
965
966 // select the text in the control an place the cursor at the end
967 ctrl->SetInsertionPointEnd();
968 ctrl->SelectAll();
969
970 return ctrl;
971 }
972
973 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant &value )
974 {
975 wxTextCtrl *text = (wxTextCtrl*) editor;
976 value = text->GetValue();
977 return true;
978 }
979
980 bool wxDataViewTextRenderer::Render(wxRect rect, wxDC *dc, int state)
981 {
982 RenderText(m_text, 0, rect, dc, state);
983 return true;
984 }
985
986 wxSize wxDataViewTextRenderer::GetSize() const
987 {
988 if (!m_text.empty())
989 return GetTextExtent(m_text);
990 else
991 return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
992 }
993
994 // ---------------------------------------------------------
995 // wxDataViewBitmapRenderer
996 // ---------------------------------------------------------
997
998 IMPLEMENT_CLASS(wxDataViewBitmapRenderer, wxDataViewRenderer)
999
1000 wxDataViewBitmapRenderer::wxDataViewBitmapRenderer( const wxString &varianttype,
1001 wxDataViewCellMode mode, int align ) :
1002 wxDataViewRenderer( varianttype, mode, align )
1003 {
1004 }
1005
1006 bool wxDataViewBitmapRenderer::SetValue( const wxVariant &value )
1007 {
1008 if (value.GetType() == wxT("wxBitmap"))
1009 m_bitmap << value;
1010 if (value.GetType() == wxT("wxIcon"))
1011 m_icon << value;
1012
1013 return true;
1014 }
1015
1016 bool wxDataViewBitmapRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1017 {
1018 return false;
1019 }
1020
1021 bool wxDataViewBitmapRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
1022 {
1023 if (m_bitmap.IsOk())
1024 dc->DrawBitmap( m_bitmap, cell.x, cell.y, true /* use mask */ );
1025 else if (m_icon.IsOk())
1026 dc->DrawIcon( m_icon, cell.x, cell.y );
1027
1028 return true;
1029 }
1030
1031 wxSize wxDataViewBitmapRenderer::GetSize() const
1032 {
1033 if (m_bitmap.IsOk())
1034 return wxSize( m_bitmap.GetWidth(), m_bitmap.GetHeight() );
1035 else if (m_icon.IsOk())
1036 return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
1037
1038 return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
1039 }
1040
1041 // ---------------------------------------------------------
1042 // wxDataViewToggleRenderer
1043 // ---------------------------------------------------------
1044
1045 IMPLEMENT_ABSTRACT_CLASS(wxDataViewToggleRenderer, wxDataViewRenderer)
1046
1047 wxDataViewToggleRenderer::wxDataViewToggleRenderer( const wxString &varianttype,
1048 wxDataViewCellMode mode, int align ) :
1049 wxDataViewRenderer( varianttype, mode, align )
1050 {
1051 m_toggle = false;
1052 }
1053
1054 bool wxDataViewToggleRenderer::SetValue( const wxVariant &value )
1055 {
1056 m_toggle = value.GetBool();
1057
1058 return true;
1059 }
1060
1061 bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
1062 {
1063 return false;
1064 }
1065
1066 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
1067 {
1068 int flags = 0;
1069 if (m_toggle)
1070 flags |= wxCONTROL_CHECKED;
1071 if (GetMode() != wxDATAVIEW_CELL_ACTIVATABLE ||
1072 GetEnabled() == false)
1073 flags |= wxCONTROL_DISABLED;
1074
1075 // Ensure that the check boxes always have at least the minimal required
1076 // size, otherwise DrawCheckBox() doesn't really work well. If this size is
1077 // greater than the cell size, the checkbox will be truncated but this is a
1078 // lesser evil.
1079 wxSize size = cell.GetSize();
1080 size.IncTo(GetSize());
1081 cell.SetSize(size);
1082
1083 wxRendererNative::Get().DrawCheckBox(
1084 GetOwner()->GetOwner(),
1085 *dc,
1086 cell,
1087 flags );
1088
1089 return true;
1090 }
1091
1092 bool wxDataViewToggleRenderer::WXActivateCell(const wxRect& WXUNUSED(cellRect),
1093 wxDataViewModel *model,
1094 const wxDataViewItem& item,
1095 unsigned int col,
1096 const wxMouseEvent *mouseEvent)
1097 {
1098 if ( mouseEvent )
1099 {
1100 // Only react to clicks directly on the checkbox, not elsewhere in the
1101 // same cell.
1102 if ( !wxRect(GetSize()).Contains(mouseEvent->GetPosition()) )
1103 return false;
1104 }
1105
1106 model->ChangeValue(!m_toggle, item, col);
1107 return true;
1108 }
1109
1110 wxSize wxDataViewToggleRenderer::GetSize() const
1111 {
1112 // the window parameter is not used by GetCheckBoxSize() so it's
1113 // safe to pass NULL
1114 return wxRendererNative::Get().GetCheckBoxSize(NULL);
1115 }
1116
1117 // ---------------------------------------------------------
1118 // wxDataViewProgressRenderer
1119 // ---------------------------------------------------------
1120
1121 IMPLEMENT_ABSTRACT_CLASS(wxDataViewProgressRenderer, wxDataViewRenderer)
1122
1123 wxDataViewProgressRenderer::wxDataViewProgressRenderer( const wxString &label,
1124 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1125 wxDataViewRenderer( varianttype, mode, align )
1126 {
1127 m_label = label;
1128 m_value = 0;
1129 }
1130
1131 bool wxDataViewProgressRenderer::SetValue( const wxVariant &value )
1132 {
1133 m_value = (long) value;
1134
1135 if (m_value < 0) m_value = 0;
1136 if (m_value > 100) m_value = 100;
1137
1138 return true;
1139 }
1140
1141 bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
1142 {
1143 value = (long) m_value;
1144 return true;
1145 }
1146
1147 bool
1148 wxDataViewProgressRenderer::Render(wxRect rect, wxDC *dc, int WXUNUSED(state))
1149 {
1150 // deflate the rect to leave a small border between bars in adjacent rows
1151 wxRect bar = rect.Deflate(0, 1);
1152
1153 dc->SetBrush( *wxTRANSPARENT_BRUSH );
1154 dc->SetPen( *wxBLACK_PEN );
1155 dc->DrawRectangle( bar );
1156
1157 bar.width = (int)(bar.width * m_value / 100.);
1158 dc->SetPen( *wxTRANSPARENT_PEN );
1159
1160 const wxDataViewItemAttr& attr = GetAttr();
1161 dc->SetBrush( attr.HasColour() ? wxBrush(attr.GetColour())
1162 : *wxBLUE_BRUSH );
1163 dc->DrawRectangle( bar );
1164
1165 return true;
1166 }
1167
1168 wxSize wxDataViewProgressRenderer::GetSize() const
1169 {
1170 return wxSize(40,12);
1171 }
1172
1173 // ---------------------------------------------------------
1174 // wxDataViewIconTextRenderer
1175 // ---------------------------------------------------------
1176
1177 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewRenderer)
1178
1179 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
1180 const wxString &varianttype, wxDataViewCellMode mode, int align ) :
1181 wxDataViewRenderer( varianttype, mode, align )
1182 {
1183 SetMode(mode);
1184 SetAlignment(align);
1185 }
1186
1187 bool wxDataViewIconTextRenderer::SetValue( const wxVariant &value )
1188 {
1189 m_value << value;
1190 return true;
1191 }
1192
1193 bool wxDataViewIconTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
1194 {
1195 return false;
1196 }
1197
1198 bool wxDataViewIconTextRenderer::Render(wxRect rect, wxDC *dc, int state)
1199 {
1200 int xoffset = 0;
1201
1202 const wxIcon& icon = m_value.GetIcon();
1203 if ( icon.IsOk() )
1204 {
1205 dc->DrawIcon(icon, rect.x, rect.y + (rect.height - icon.GetHeight())/2);
1206 xoffset = icon.GetWidth()+4;
1207 }
1208
1209 RenderText(m_value.GetText(), xoffset, rect, dc, state);
1210
1211 return true;
1212 }
1213
1214 wxSize wxDataViewIconTextRenderer::GetSize() const
1215 {
1216 if (!m_value.GetText().empty())
1217 {
1218 wxSize size = GetTextExtent(m_value.GetText());
1219
1220 if (m_value.GetIcon().IsOk())
1221 size.x += m_value.GetIcon().GetWidth() + 4;
1222 return size;
1223 }
1224 return wxSize(80,20);
1225 }
1226
1227 wxWindow* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)
1228 {
1229 wxDataViewIconText iconText;
1230 iconText << value;
1231
1232 wxString text = iconText.GetText();
1233
1234 // adjust the label rect to take the width of the icon into account
1235 if (iconText.GetIcon().IsOk())
1236 {
1237 int w = iconText.GetIcon().GetWidth() + 4;
1238 labelRect.x += w;
1239 labelRect.width -= w;
1240 }
1241
1242 wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
1243 wxPoint(labelRect.x,labelRect.y),
1244 wxSize(labelRect.width,labelRect.height),
1245 wxTE_PROCESS_ENTER );
1246
1247 // select the text in the control an place the cursor at the end
1248 ctrl->SetInsertionPointEnd();
1249 ctrl->SelectAll();
1250
1251 return ctrl;
1252 }
1253
1254 bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxWindow *editor, wxVariant& value )
1255 {
1256 wxTextCtrl *text = (wxTextCtrl*) editor;
1257
1258 // The icon can't be edited so get its old value and reuse it.
1259 wxVariant valueOld;
1260 wxDataViewColumn* const col = GetOwner();
1261 GetView()->GetModel()->GetValue(valueOld, m_item, col->GetModelColumn());
1262
1263 wxDataViewIconText iconText;
1264 iconText << valueOld;
1265
1266 // But replace the text with the value entered by user.
1267 iconText.SetText(text->GetValue());
1268
1269 value << iconText;
1270 return true;
1271 }
1272
1273 //-----------------------------------------------------------------------------
1274 // wxDataViewDropTarget
1275 //-----------------------------------------------------------------------------
1276
1277 #if wxUSE_DRAG_AND_DROP
1278
1279 class wxBitmapCanvas: public wxWindow
1280 {
1281 public:
1282 wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
1283 wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
1284 {
1285 m_bitmap = bitmap;
1286 Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
1287 }
1288
1289 void OnPaint( wxPaintEvent &WXUNUSED(event) )
1290 {
1291 wxPaintDC dc(this);
1292 dc.DrawBitmap( m_bitmap, 0, 0);
1293 }
1294
1295 wxBitmap m_bitmap;
1296 };
1297
1298 class wxDataViewDropSource: public wxDropSource
1299 {
1300 public:
1301 wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
1302 wxDropSource( win )
1303 {
1304 m_win = win;
1305 m_row = row;
1306 m_hint = NULL;
1307 }
1308
1309 ~wxDataViewDropSource()
1310 {
1311 delete m_hint;
1312 }
1313
1314 virtual bool GiveFeedback( wxDragResult WXUNUSED(effect) )
1315 {
1316 wxPoint pos = wxGetMousePosition();
1317
1318 if (!m_hint)
1319 {
1320 int liney = m_win->GetLineStart( m_row );
1321 int linex = 0;
1322 m_win->GetOwner()->CalcUnscrolledPosition( 0, liney, NULL, &liney );
1323 m_win->ClientToScreen( &linex, &liney );
1324 m_dist_x = pos.x - linex;
1325 m_dist_y = pos.y - liney;
1326
1327 int indent = 0;
1328 wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
1329 m_dist_x -= indent;
1330 m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
1331 wxPoint(pos.x - m_dist_x, pos.y + 5 ),
1332 ib.GetSize(),
1333 wxFRAME_TOOL_WINDOW |
1334 wxFRAME_FLOAT_ON_PARENT |
1335 wxFRAME_NO_TASKBAR |
1336 wxNO_BORDER );
1337 new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
1338 m_hint->Show();
1339 }
1340 else
1341 {
1342 m_hint->Move( pos.x - m_dist_x, pos.y + 5 );
1343 m_hint->SetTransparent( 128 );
1344 }
1345
1346 return false;
1347 }
1348
1349 wxDataViewMainWindow *m_win;
1350 unsigned int m_row;
1351 wxFrame *m_hint;
1352 int m_dist_x,m_dist_y;
1353 };
1354
1355
1356 class wxDataViewDropTarget: public wxDropTarget
1357 {
1358 public:
1359 wxDataViewDropTarget( wxDataObject *obj, wxDataViewMainWindow *win ) :
1360 wxDropTarget( obj )
1361 {
1362 m_win = win;
1363 }
1364
1365 virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
1366 {
1367 wxDataFormat format = GetMatchingPair();
1368 if (format == wxDF_INVALID)
1369 return wxDragNone;
1370 return m_win->OnDragOver( format, x, y, def);
1371 }
1372
1373 virtual bool OnDrop( wxCoord x, wxCoord y )
1374 {
1375 wxDataFormat format = GetMatchingPair();
1376 if (format == wxDF_INVALID)
1377 return false;
1378 return m_win->OnDrop( format, x, y );
1379 }
1380
1381 virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
1382 {
1383 wxDataFormat format = GetMatchingPair();
1384 if (format == wxDF_INVALID)
1385 return wxDragNone;
1386 if (!GetData())
1387 return wxDragNone;
1388 return m_win->OnData( format, x, y, def );
1389 }
1390
1391 virtual void OnLeave()
1392 { m_win->OnLeave(); }
1393
1394 wxDataViewMainWindow *m_win;
1395 };
1396
1397 #endif // wxUSE_DRAG_AND_DROP
1398
1399 //-----------------------------------------------------------------------------
1400 // wxDataViewRenameTimer
1401 //-----------------------------------------------------------------------------
1402
1403 wxDataViewRenameTimer::wxDataViewRenameTimer( wxDataViewMainWindow *owner )
1404 {
1405 m_owner = owner;
1406 }
1407
1408 void wxDataViewRenameTimer::Notify()
1409 {
1410 m_owner->OnRenameTimer();
1411 }
1412
1413 //-----------------------------------------------------------------------------
1414 // wxDataViewMainWindow
1415 //-----------------------------------------------------------------------------
1416
1417 // The tree building helper, declared firstly
1418 static void BuildTreeHelper( const wxDataViewModel * model, const wxDataViewItem & item,
1419 wxDataViewTreeNode * node);
1420
1421 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
1422 {
1423 if (row1 > row2) return 1;
1424 if (row1 == row2) return 0;
1425 return -1;
1426 }
1427
1428 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
1429
1430 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
1431 EVT_PAINT (wxDataViewMainWindow::OnPaint)
1432 EVT_MOUSE_EVENTS (wxDataViewMainWindow::OnMouse)
1433 EVT_SET_FOCUS (wxDataViewMainWindow::OnSetFocus)
1434 EVT_KILL_FOCUS (wxDataViewMainWindow::OnKillFocus)
1435 EVT_CHAR_HOOK (wxDataViewMainWindow::OnCharHook)
1436 EVT_CHAR (wxDataViewMainWindow::OnChar)
1437 END_EVENT_TABLE()
1438
1439 wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID id,
1440 const wxPoint &pos, const wxSize &size, const wxString &name ) :
1441 wxWindow( parent, id, pos, size, wxWANTS_CHARS|wxBORDER_NONE, name ),
1442 m_selection( wxDataViewSelectionCmp )
1443
1444 {
1445 SetOwner( parent );
1446
1447 m_editorRenderer = NULL;
1448
1449 m_lastOnSame = false;
1450 m_renameTimer = new wxDataViewRenameTimer( this );
1451
1452 // TODO: user better initial values/nothing selected
1453 m_currentCol = NULL;
1454 m_currentColSetByKeyboard = false;
1455 m_useCellFocus = false;
1456 m_currentRow = (unsigned)-1;
1457 m_lineHeight = GetDefaultRowHeight();
1458
1459 #if wxUSE_DRAG_AND_DROP
1460 m_dragCount = 0;
1461 m_dragStart = wxPoint(0,0);
1462
1463 m_dragEnabled = false;
1464 m_dropEnabled = false;
1465 m_dropHint = false;
1466 m_dropHintLine = (unsigned int) -1;
1467 #endif // wxUSE_DRAG_AND_DROP
1468
1469 m_lineLastClicked = (unsigned int) -1;
1470 m_lineBeforeLastClicked = (unsigned int) -1;
1471 m_lineSelectSingleOnUp = (unsigned int) -1;
1472
1473 m_hasFocus = false;
1474
1475 SetBackgroundColour( *wxWHITE );
1476
1477 SetBackgroundStyle(wxBG_STYLE_CUSTOM);
1478
1479 m_penRule = wxPen(GetRuleColour());
1480
1481 // compose a pen whichcan draw black lines
1482 // TODO: maybe there is something system colour to use
1483 m_penExpander = wxPen(wxColour(0,0,0));
1484
1485 m_root = wxDataViewTreeNode::CreateRootNode();
1486
1487 // Make m_count = -1 will cause the class recaculate the real displaying number of rows.
1488 m_count = -1;
1489 m_underMouse = NULL;
1490 UpdateDisplay();
1491 }
1492
1493 wxDataViewMainWindow::~wxDataViewMainWindow()
1494 {
1495 DestroyTree();
1496 delete m_renameTimer;
1497 }
1498
1499
1500 int wxDataViewMainWindow::GetDefaultRowHeight() const
1501 {
1502 #ifdef __WXMSW__
1503 // We would like to use the same line height that Explorer uses. This is
1504 // different from standard ListView control since Vista.
1505 if ( wxGetWinVersion() >= wxWinVersion_Vista )
1506 return wxMax(16, GetCharHeight()) + 6; // 16 = mini icon height
1507 else
1508 #endif // __WXMSW__
1509 return wxMax(16, GetCharHeight()) + 1; // 16 = mini icon height
1510 }
1511
1512
1513
1514 #if wxUSE_DRAG_AND_DROP
1515 bool wxDataViewMainWindow::EnableDragSource( const wxDataFormat &format )
1516 {
1517 m_dragFormat = format;
1518 m_dragEnabled = format != wxDF_INVALID;
1519
1520 return true;
1521 }
1522
1523 bool wxDataViewMainWindow::EnableDropTarget( const wxDataFormat &format )
1524 {
1525 m_dropFormat = format;
1526 m_dropEnabled = format != wxDF_INVALID;
1527
1528 if (m_dropEnabled)
1529 SetDropTarget( new wxDataViewDropTarget( new wxCustomDataObject( format ), this ) );
1530
1531 return true;
1532 }
1533
1534 void wxDataViewMainWindow::RemoveDropHint()
1535 {
1536 if (m_dropHint)
1537 {
1538 m_dropHint = false;
1539 RefreshRow( m_dropHintLine );
1540 m_dropHintLine = (unsigned int) -1;
1541 }
1542 }
1543
1544 wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
1545 wxCoord y, wxDragResult def )
1546 {
1547 int xx = x;
1548 int yy = y;
1549 m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1550 unsigned int row = GetLineAt( yy );
1551
1552 if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1553 {
1554 RemoveDropHint();
1555 return wxDragNone;
1556 }
1557
1558 wxDataViewItem item = GetItemByRow( row );
1559
1560 wxDataViewModel *model = GetModel();
1561
1562 wxDataViewEvent event( wxEVT_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1563 event.SetEventObject( m_owner );
1564 event.SetItem( item );
1565 event.SetModel( model );
1566 event.SetDataFormat( format );
1567 event.SetDropEffect( def );
1568 if (!m_owner->HandleWindowEvent( event ))
1569 {
1570 RemoveDropHint();
1571 return wxDragNone;
1572 }
1573
1574 if (!event.IsAllowed())
1575 {
1576 RemoveDropHint();
1577 return wxDragNone;
1578 }
1579
1580
1581 if (m_dropHint && (row != m_dropHintLine))
1582 RefreshRow( m_dropHintLine );
1583 m_dropHint = true;
1584 m_dropHintLine = row;
1585 RefreshRow( row );
1586
1587 return def;
1588 }
1589
1590 bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
1591 {
1592 RemoveDropHint();
1593
1594 int xx = x;
1595 int yy = y;
1596 m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1597 unsigned int row = GetLineAt( yy );
1598
1599 if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1600 return false;
1601
1602 wxDataViewItem item = GetItemByRow( row );
1603
1604 wxDataViewModel *model = GetModel();
1605
1606 wxDataViewEvent event( wxEVT_DATAVIEW_ITEM_DROP_POSSIBLE, m_owner->GetId() );
1607 event.SetEventObject( m_owner );
1608 event.SetItem( item );
1609 event.SetModel( model );
1610 event.SetDataFormat( format );
1611 if (!m_owner->HandleWindowEvent( event ))
1612 return false;
1613
1614 if (!event.IsAllowed())
1615 return false;
1616
1617 return true;
1618 }
1619
1620 wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
1621 wxDragResult def )
1622 {
1623 int xx = x;
1624 int yy = y;
1625 m_owner->CalcUnscrolledPosition( xx, yy, &xx, &yy );
1626 unsigned int row = GetLineAt( yy );
1627
1628 if ((row >= GetRowCount()) || (xx > GetEndOfLastCol()))
1629 return wxDragNone;
1630
1631 wxDataViewItem item = GetItemByRow( row );
1632
1633 wxDataViewModel *model = GetModel();
1634
1635 wxCustomDataObject *obj = (wxCustomDataObject *) GetDropTarget()->GetDataObject();
1636
1637 wxDataViewEvent event( wxEVT_DATAVIEW_ITEM_DROP, m_owner->GetId() );
1638 event.SetEventObject( m_owner );
1639 event.SetItem( item );
1640 event.SetModel( model );
1641 event.SetDataFormat( format );
1642 event.SetDataSize( obj->GetSize() );
1643 event.SetDataBuffer( obj->GetData() );
1644 event.SetDropEffect( def );
1645 if (!m_owner->HandleWindowEvent( event ))
1646 return wxDragNone;
1647
1648 if (!event.IsAllowed())
1649 return wxDragNone;
1650
1651 return def;
1652 }
1653
1654 void wxDataViewMainWindow::OnLeave()
1655 {
1656 RemoveDropHint();
1657 }
1658
1659 wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
1660 {
1661 int height = GetLineHeight( row );
1662 int width = 0;
1663 unsigned int cols = GetOwner()->GetColumnCount();
1664 unsigned int col;
1665 for (col = 0; col < cols; col++)
1666 {
1667 wxDataViewColumn *column = GetOwner()->GetColumnAt(col);
1668 if (column->IsHidden())
1669 continue; // skip it!
1670 width += column->GetWidth();
1671 }
1672
1673 indent = 0;
1674 if (!IsList())
1675 {
1676 wxDataViewTreeNode *node = GetTreeNodeByRow(row);
1677 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
1678 indent = indent + m_lineHeight;
1679 // try to use the m_lineHeight as the expander space
1680 }
1681 width -= indent;
1682
1683 wxBitmap bitmap( width, height );
1684 wxMemoryDC dc( bitmap );
1685 dc.SetFont( GetFont() );
1686 dc.SetPen( *wxBLACK_PEN );
1687 dc.SetBrush( *wxWHITE_BRUSH );
1688 dc.DrawRectangle( 0,0,width,height );
1689
1690 wxDataViewModel *model = m_owner->GetModel();
1691
1692 wxDataViewColumn * const
1693 expander = GetExpanderColumnOrFirstOne(GetOwner());
1694
1695 int x = 0;
1696 for (col = 0; col < cols; col++)
1697 {
1698 wxDataViewColumn *column = GetOwner()->GetColumnAt( col );
1699 wxDataViewRenderer *cell = column->GetRenderer();
1700
1701 if (column->IsHidden())
1702 continue; // skip it!
1703
1704 width = column->GetWidth();
1705
1706 if (column == expander)
1707 width -= indent;
1708
1709 wxDataViewItem item = GetItemByRow( row );
1710 cell->PrepareForItem(model, item, column->GetModelColumn());
1711
1712 wxRect item_rect(x, 0, width, height);
1713 item_rect.Deflate(PADDING_RIGHTLEFT, 0);
1714
1715 // dc.SetClippingRegion( item_rect );
1716 cell->WXCallRender(item_rect, &dc, 0);
1717 // dc.DestroyClippingRegion();
1718
1719 x += width;
1720 }
1721
1722 return bitmap;
1723 }
1724
1725 #endif // wxUSE_DRAG_AND_DROP
1726
1727
1728 // Draw focus rect for individual cell. Unlike native focus rect, we render
1729 // this in foreground text color (typically white) to enhance contrast and
1730 // make it visible.
1731 static void DrawSelectedCellFocusRect(wxDC& dc, const wxRect& rect)
1732 {
1733 // (This code is based on wxRendererGeneric::DrawFocusRect and modified.)
1734
1735 // draw the pixels manually because the "dots" in wxPen with wxDOT style
1736 // may be short traits and not really dots
1737 //
1738 // note that to behave in the same manner as DrawRect(), we must exclude
1739 // the bottom and right borders from the rectangle
1740 wxCoord x1 = rect.GetLeft(),
1741 y1 = rect.GetTop(),
1742 x2 = rect.GetRight(),
1743 y2 = rect.GetBottom();
1744
1745 wxDCPenChanger pen(dc, wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
1746
1747 wxCoord z;
1748 for ( z = x1 + 1; z < x2; z += 2 )
1749 dc.DrawPoint(z, rect.GetTop());
1750
1751 wxCoord shift = z == x2 ? 0 : 1;
1752 for ( z = y1 + shift; z < y2; z += 2 )
1753 dc.DrawPoint(x2, z);
1754
1755 shift = z == y2 ? 0 : 1;
1756 for ( z = x2 - shift; z > x1; z -= 2 )
1757 dc.DrawPoint(z, y2);
1758
1759 shift = z == x1 ? 0 : 1;
1760 for ( z = y2 - shift; z > y1; z -= 2 )
1761 dc.DrawPoint(x1, z);
1762 }
1763
1764
1765 void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
1766 {
1767 wxDataViewModel *model = GetModel();
1768 wxAutoBufferedPaintDC dc( this );
1769
1770 dc.SetBrush(GetOwner()->GetBackgroundColour());
1771 dc.SetPen( *wxTRANSPARENT_PEN );
1772 dc.DrawRectangle(GetClientSize());
1773
1774 if ( IsEmpty() )
1775 {
1776 // No items to draw.
1777 return;
1778 }
1779
1780 // prepare the DC
1781 GetOwner()->PrepareDC( dc );
1782 dc.SetFont( GetFont() );
1783
1784 wxRect update = GetUpdateRegion().GetBox();
1785 m_owner->CalcUnscrolledPosition( update.x, update.y, &update.x, &update.y );
1786
1787 // compute which items needs to be redrawn
1788 unsigned int item_start = GetLineAt( wxMax(0,update.y) );
1789 unsigned int item_count =
1790 wxMin( (int)( GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
1791 (int)(GetRowCount( ) - item_start));
1792 unsigned int item_last = item_start + item_count;
1793
1794 // Send the event to wxDataViewCtrl itself.
1795 wxWindow * const parent = GetParent();
1796 wxDataViewEvent cache_event(wxEVT_DATAVIEW_CACHE_HINT, parent->GetId());
1797 cache_event.SetEventObject(parent);
1798 cache_event.SetCache(item_start, item_last - 1);
1799 parent->ProcessWindowEvent(cache_event);
1800
1801 // compute which columns needs to be redrawn
1802 unsigned int cols = GetOwner()->GetColumnCount();
1803 if ( !cols )
1804 {
1805 // we assume that we have at least one column below and painting an
1806 // empty control is unnecessary anyhow
1807 return;
1808 }
1809
1810 unsigned int col_start = 0;
1811 unsigned int x_start;
1812 for (x_start = 0; col_start < cols; col_start++)
1813 {
1814 wxDataViewColumn *col = GetOwner()->GetColumnAt(col_start);
1815 if (col->IsHidden())
1816 continue; // skip it!
1817
1818 unsigned int w = col->GetWidth();
1819 if (x_start+w >= (unsigned int)update.x)
1820 break;
1821
1822 x_start += w;
1823 }
1824
1825 unsigned int col_last = col_start;
1826 unsigned int x_last = x_start;
1827 for (; col_last < cols; col_last++)
1828 {
1829 wxDataViewColumn *col = GetOwner()->GetColumnAt(col_last);
1830 if (col->IsHidden())
1831 continue; // skip it!
1832
1833 if (x_last > (unsigned int)update.GetRight())
1834 break;
1835
1836 x_last += col->GetWidth();
1837 }
1838
1839 // Draw background of alternate rows specially if required
1840 if ( m_owner->HasFlag(wxDV_ROW_LINES) )
1841 {
1842 wxColour altRowColour = m_owner->m_alternateRowColour;
1843 if ( !altRowColour.IsOk() )
1844 {
1845 // Determine the alternate rows colour automatically from the
1846 // background colour.
1847 const wxColour bgColour = m_owner->GetBackgroundColour();
1848
1849 // Depending on the background, alternate row color
1850 // will be 3% more dark or 50% brighter.
1851 int alpha = bgColour.GetRGB() > 0x808080 ? 97 : 150;
1852 altRowColour = bgColour.ChangeLightness(alpha);
1853 }
1854
1855 dc.SetPen(*wxTRANSPARENT_PEN);
1856 dc.SetBrush(wxBrush(altRowColour));
1857
1858 for (unsigned int item = item_start; item < item_last; item++)
1859 {
1860 if ( item % 2 )
1861 {
1862 dc.DrawRectangle(x_start,
1863 GetLineStart(item),
1864 GetClientSize().GetWidth(),
1865 GetLineHeight(item));
1866 }
1867 }
1868 }
1869
1870 // Draw horizontal rules if required
1871 if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
1872 {
1873 dc.SetPen(m_penRule);
1874 dc.SetBrush(*wxTRANSPARENT_BRUSH);
1875
1876 for (unsigned int i = item_start; i <= item_last; i++)
1877 {
1878 int y = GetLineStart( i );
1879 dc.DrawLine(x_start, y, x_last, y);
1880 }
1881 }
1882
1883 // Draw vertical rules if required
1884 if ( m_owner->HasFlag(wxDV_VERT_RULES) )
1885 {
1886 dc.SetPen(m_penRule);
1887 dc.SetBrush(*wxTRANSPARENT_BRUSH);
1888
1889 // NB: Vertical rules are drawn in the last pixel of a column so that
1890 // they align perfectly with native MSW wxHeaderCtrl as well as for
1891 // consistency with MSW native list control. There's no vertical
1892 // rule at the most-left side of the control.
1893
1894 int x = x_start - 1;
1895 for (unsigned int i = col_start; i < col_last; i++)
1896 {
1897 wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1898 if (col->IsHidden())
1899 continue; // skip it
1900
1901 x += col->GetWidth();
1902
1903 dc.DrawLine(x, GetLineStart( item_start ),
1904 x, GetLineStart( item_last ) );
1905 }
1906 }
1907
1908 // redraw the background for the items which are selected/current
1909 for (unsigned int item = item_start; item < item_last; item++)
1910 {
1911 bool selected = m_selection.Index( item ) != wxNOT_FOUND;
1912
1913 if (selected || item == m_currentRow)
1914 {
1915 wxRect rect( x_start, GetLineStart( item ),
1916 x_last - x_start, GetLineHeight( item ) );
1917
1918 // draw selection and whole-item focus:
1919 if ( selected )
1920 {
1921 int flags = wxCONTROL_SELECTED;
1922 if (m_hasFocus)
1923 flags |= wxCONTROL_FOCUSED;
1924
1925 wxRendererNative::Get().DrawItemSelectionRect
1926 (
1927 this,
1928 dc,
1929 rect,
1930 flags
1931 );
1932 }
1933
1934 // draw keyboard focus rect if applicable
1935 if ( item == m_currentRow && m_hasFocus )
1936 {
1937 bool renderColumnFocus = false;
1938
1939 if ( m_useCellFocus && m_currentCol && m_currentColSetByKeyboard )
1940 {
1941 renderColumnFocus = true;
1942
1943 // If this is container node without columns, render full-row focus:
1944 if ( !IsList() )
1945 {
1946 wxDataViewTreeNode *node = GetTreeNodeByRow(item);
1947 if ( node->HasChildren() && !model->HasContainerColumns(node->GetItem()) )
1948 renderColumnFocus = false;
1949 }
1950 }
1951
1952 if ( renderColumnFocus )
1953 {
1954 for ( unsigned int i = col_start; i < col_last; i++ )
1955 {
1956 wxDataViewColumn *col = GetOwner()->GetColumnAt(i);
1957 if ( col->IsHidden() )
1958 continue;
1959
1960 rect.width = col->GetWidth();
1961
1962 if ( col == m_currentCol )
1963 {
1964 // make the rect more visible by adding a small
1965 // margin around it:
1966 rect.Deflate(1, 1);
1967
1968 if ( selected )
1969 {
1970 // DrawFocusRect() uses XOR and is all but
1971 // invisible against dark-blue background. Use
1972 // the same color used for selected text.
1973 DrawSelectedCellFocusRect(dc, rect);
1974 }
1975 else
1976 {
1977 wxRendererNative::Get().DrawFocusRect
1978 (
1979 this,
1980 dc,
1981 rect,
1982 0
1983 );
1984 }
1985 break;
1986 }
1987
1988 rect.x += rect.width;
1989 }
1990 }
1991 else
1992 {
1993 // render focus rectangle for the whole row
1994 wxRendererNative::Get().DrawFocusRect
1995 (
1996 this,
1997 dc,
1998 rect,
1999 selected ? (int)wxCONTROL_SELECTED : 0
2000 );
2001 }
2002 }
2003 }
2004 }
2005
2006 #if wxUSE_DRAG_AND_DROP
2007 if (m_dropHint)
2008 {
2009 wxRect rect( x_start, GetLineStart( m_dropHintLine ),
2010 x_last - x_start, GetLineHeight( m_dropHintLine ) );
2011 dc.SetPen( *wxBLACK_PEN );
2012 dc.SetBrush( *wxTRANSPARENT_BRUSH );
2013 dc.DrawRectangle( rect );
2014 }
2015 #endif // wxUSE_DRAG_AND_DROP
2016
2017 wxDataViewColumn * const
2018 expander = GetExpanderColumnOrFirstOne(GetOwner());
2019
2020 // redraw all cells for all rows which must be repainted and all columns
2021 wxRect cell_rect;
2022 cell_rect.x = x_start;
2023 for (unsigned int i = col_start; i < col_last; i++)
2024 {
2025 wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
2026 wxDataViewRenderer *cell = col->GetRenderer();
2027 cell_rect.width = col->GetWidth();
2028
2029 if ( col->IsHidden() || cell_rect.width <= 0 )
2030 continue; // skip it!
2031
2032 for (unsigned int item = item_start; item < item_last; item++)
2033 {
2034 // get the cell value and set it into the renderer
2035 wxDataViewTreeNode *node = NULL;
2036 wxDataViewItem dataitem;
2037
2038 if (!IsVirtualList())
2039 {
2040 node = GetTreeNodeByRow(item);
2041 if( node == NULL )
2042 continue;
2043
2044 dataitem = node->GetItem();
2045
2046 // Skip all columns of "container" rows except the expander
2047 // column itself unless HasContainerColumns() overrides this.
2048 if ( col != expander &&
2049 model->IsContainer(dataitem) &&
2050 !model->HasContainerColumns(dataitem) )
2051 continue;
2052 }
2053 else
2054 {
2055 dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
2056 }
2057
2058 cell->PrepareForItem(model, dataitem, col->GetModelColumn());
2059
2060 // update cell_rect
2061 cell_rect.y = GetLineStart( item );
2062 cell_rect.height = GetLineHeight( item );
2063
2064 // draw the background
2065 bool selected = m_selection.Index( item ) != wxNOT_FOUND;
2066 if ( !selected )
2067 DrawCellBackground( cell, dc, cell_rect );
2068
2069 // deal with the expander
2070 int indent = 0;
2071 if ((!IsList()) && (col == expander))
2072 {
2073 // Calculate the indent first
2074 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
2075
2076 // we reserve m_lineHeight of horizontal space for the expander
2077 // but leave EXPANDER_MARGIN around the expander itself
2078 int exp_x = cell_rect.x + indent + EXPANDER_MARGIN;
2079
2080 indent += m_lineHeight;
2081
2082 // draw expander if needed and visible
2083 if ( node->HasChildren() && exp_x < cell_rect.GetRight() )
2084 {
2085 dc.SetPen( m_penExpander );
2086 dc.SetBrush( wxNullBrush );
2087
2088 int exp_size = m_lineHeight - 2*EXPANDER_MARGIN;
2089 int exp_y = cell_rect.y + (cell_rect.height - exp_size)/2
2090 + EXPANDER_MARGIN - EXPANDER_OFFSET;
2091
2092 const wxRect rect(exp_x, exp_y, exp_size, exp_size);
2093
2094 int flag = 0;
2095 if ( m_underMouse == node )
2096 flag |= wxCONTROL_CURRENT;
2097 if ( node->IsOpen() )
2098 flag |= wxCONTROL_EXPANDED;
2099
2100 // ensure that we don't overflow the cell (which might
2101 // happen if the column is very narrow)
2102 wxDCClipper clip(dc, cell_rect);
2103
2104 wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
2105 }
2106
2107 // force the expander column to left-center align
2108 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
2109 }
2110
2111 wxRect item_rect = cell_rect;
2112 item_rect.Deflate(PADDING_RIGHTLEFT, 0);
2113
2114 // account for the tree indent (harmless if we're not indented)
2115 item_rect.x += indent;
2116 item_rect.width -= indent;
2117
2118 if ( item_rect.width <= 0 )
2119 continue;
2120
2121 int state = 0;
2122 if (m_hasFocus && selected)
2123 state |= wxDATAVIEW_CELL_SELECTED;
2124
2125 // TODO: it would be much more efficient to create a clipping
2126 // region for the entire column being rendered (in the OnPaint
2127 // of wxDataViewMainWindow) instead of a single clip region for
2128 // each cell. However it would mean that each renderer should
2129 // respect the given wxRect's top & bottom coords, eventually
2130 // violating only the left & right coords - however the user can
2131 // make its own renderer and thus we cannot be sure of that.
2132 wxDCClipper clip(dc, item_rect);
2133
2134 cell->WXCallRender(item_rect, &dc, state);
2135 }
2136
2137 cell_rect.x += cell_rect.width;
2138 }
2139 }
2140
2141
2142 void wxDataViewMainWindow::DrawCellBackground( wxDataViewRenderer* cell, wxDC& dc, const wxRect& rect )
2143 {
2144 wxRect rectBg( rect );
2145
2146 // don't overlap the horizontal rules
2147 if ( m_owner->HasFlag(wxDV_HORIZ_RULES) )
2148 {
2149 rectBg.x++;
2150 rectBg.width--;
2151 }
2152
2153 // don't overlap the vertical rules
2154 if ( m_owner->HasFlag(wxDV_VERT_RULES) )
2155 {
2156 rectBg.y++;
2157 rectBg.height--;
2158 }
2159
2160 cell->RenderBackground(&dc, rectBg);
2161 }
2162
2163 void wxDataViewMainWindow::OnRenameTimer()
2164 {
2165 // We have to call this here because changes may just have
2166 // been made and no screen update taken place.
2167 if ( m_dirty )
2168 {
2169 // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
2170 // (needs to be tested!)
2171 wxSafeYield();
2172 }
2173
2174 wxDataViewItem item = GetItemByRow( m_currentRow );
2175
2176 StartEditing( item, m_currentCol );
2177 }
2178
2179 void
2180 wxDataViewMainWindow::StartEditing(const wxDataViewItem& item,
2181 const wxDataViewColumn* col)
2182 {
2183 wxDataViewRenderer* renderer = col->GetRenderer();
2184 if ( !IsCellEditableInMode(item, col, wxDATAVIEW_CELL_EDITABLE) )
2185 return;
2186
2187 const wxRect itemRect = GetItemRect(item, col);
2188 if ( renderer->StartEditing(item, itemRect) )
2189 {
2190 // Save the renderer to be able to finish/cancel editing it later and
2191 // save the control to be able to detect if we're still editing it.
2192 m_editorRenderer = renderer;
2193 m_editorCtrl = renderer->GetEditorCtrl();
2194 }
2195 }
2196
2197 //-----------------------------------------------------------------------------
2198 // Helper class for do operation on the tree node
2199 //-----------------------------------------------------------------------------
2200 class DoJob
2201 {
2202 public:
2203 DoJob() { }
2204 virtual ~DoJob() { }
2205
2206 // The return value control how the tree-walker tranverse the tree
2207 enum
2208 {
2209 DONE, // Job done, stop traversing and return
2210 SKIP_SUBTREE, // Ignore the current node's subtree and continue
2211 CONTINUE // Job not done, continue
2212 };
2213
2214 virtual int operator() ( wxDataViewTreeNode * node ) = 0;
2215 };
2216
2217 bool Walker( wxDataViewTreeNode * node, DoJob & func )
2218 {
2219 wxCHECK_MSG( node, false, "can't walk NULL node" );
2220
2221 switch( func( node ) )
2222 {
2223 case DoJob::DONE:
2224 return true;
2225 case DoJob::SKIP_SUBTREE:
2226 return false;
2227 case DoJob::CONTINUE:
2228 break;
2229 }
2230
2231 if ( node->HasChildren() )
2232 {
2233 const wxDataViewTreeNodes& nodes = node->GetChildNodes();
2234
2235 for ( wxDataViewTreeNodes::const_iterator i = nodes.begin();
2236 i != nodes.end();
2237 ++i )
2238 {
2239 if ( Walker(*i, func) )
2240 return true;
2241 }
2242 }
2243
2244 return false;
2245 }
2246
2247 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
2248 {
2249 if (IsVirtualList())
2250 {
2251 wxDataViewVirtualListModel *list_model =
2252 (wxDataViewVirtualListModel*) GetModel();
2253 m_count = list_model->GetCount();
2254 }
2255 else
2256 {
2257 SortPrepare();
2258
2259 wxDataViewTreeNode *parentNode = FindNode(parent);
2260
2261 if ( !parentNode )
2262 return false;
2263
2264 wxDataViewItemArray modelSiblings;
2265 GetModel()->GetChildren(parent, modelSiblings);
2266 const int modelSiblingsSize = modelSiblings.size();
2267
2268 int posInModel = modelSiblings.Index(item, /*fromEnd=*/true);
2269 wxCHECK_MSG( posInModel != wxNOT_FOUND, false, "adding non-existent item?" );
2270
2271 wxDataViewTreeNode *itemNode = new wxDataViewTreeNode(parentNode, item);
2272 itemNode->SetHasChildren(GetModel()->IsContainer(item));
2273
2274 parentNode->SetHasChildren(true);
2275
2276 const wxDataViewTreeNodes& nodeSiblings = parentNode->GetChildNodes();
2277 const int nodeSiblingsSize = nodeSiblings.size();
2278
2279 int nodePos = 0;
2280
2281 if ( posInModel == modelSiblingsSize - 1 )
2282 {
2283 nodePos = nodeSiblingsSize;
2284 }
2285 else if ( modelSiblingsSize == nodeSiblingsSize + 1 )
2286 {
2287 // This is the simple case when our node tree already matches the
2288 // model and only this one item is missing.
2289 nodePos = posInModel;
2290 }
2291 else
2292 {
2293 // It's possible that a larger discrepancy between the model and
2294 // our realization exists. This can happen e.g. when adding a bunch
2295 // of items to the model and then calling ItemsAdded() just once
2296 // afterwards. In this case, we must find the right position by
2297 // looking at sibling items.
2298
2299 // append to the end if we won't find a better position:
2300 nodePos = nodeSiblingsSize;
2301
2302 for ( int nextItemPos = posInModel + 1;
2303 nextItemPos < modelSiblingsSize;
2304 nextItemPos++ )
2305 {
2306 int nextNodePos = parentNode->FindChildByItem(modelSiblings[nextItemPos]);
2307 if ( nextNodePos != wxNOT_FOUND )
2308 {
2309 nodePos = nextNodePos;
2310 break;
2311 }
2312 }
2313 }
2314
2315 parentNode->ChangeSubTreeCount(+1);
2316 parentNode->InsertChild(itemNode, nodePos);
2317
2318 m_count = -1;
2319 }
2320
2321 GetOwner()->InvalidateColBestWidths();
2322 UpdateDisplay();
2323
2324 return true;
2325 }
2326
2327 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
2328 const wxDataViewItem& item)
2329 {
2330 if (IsVirtualList())
2331 {
2332 wxDataViewVirtualListModel *list_model =
2333 (wxDataViewVirtualListModel*) GetModel();
2334 m_count = list_model->GetCount();
2335
2336 if ( !m_selection.empty() )
2337 {
2338 const int row = GetRowByItem(item);
2339
2340 int rowIndexInSelection = wxNOT_FOUND;
2341
2342 const size_t selCount = m_selection.size();
2343 for ( size_t i = 0; i < selCount; i++ )
2344 {
2345 if ( m_selection[i] == (unsigned)row )
2346 rowIndexInSelection = i;
2347 else if ( m_selection[i] > (unsigned)row )
2348 m_selection[i]--;
2349 }
2350
2351 if ( rowIndexInSelection != wxNOT_FOUND )
2352 m_selection.RemoveAt(rowIndexInSelection);
2353 }
2354
2355 }
2356 else // general case
2357 {
2358 wxDataViewTreeNode *parentNode = FindNode(parent);
2359
2360 // Notice that it is possible that the item being deleted is not in the
2361 // tree at all, for example we could be deleting a never shown (because
2362 // collapsed) item in a tree model. So it's not an error if we don't know
2363 // about this item, just return without doing anything then.
2364 if ( !parentNode )
2365 return true;
2366
2367 wxCHECK_MSG( parentNode->HasChildren(), false, "parent node doesn't have children?" );
2368 const wxDataViewTreeNodes& parentsChildren = parentNode->GetChildNodes();
2369
2370 // We can't use FindNode() to find 'item', because it was already
2371 // removed from the model by the time ItemDeleted() is called, so we
2372 // have to do it manually. We keep track of its position as well for
2373 // later use.
2374 int itemPosInNode = 0;
2375 wxDataViewTreeNode *itemNode = NULL;
2376 for ( wxDataViewTreeNodes::const_iterator i = parentsChildren.begin();
2377 i != parentsChildren.end();
2378 ++i, ++itemPosInNode )
2379 {
2380 if( (*i)->GetItem() == item )
2381 {
2382 itemNode = *i;
2383 break;
2384 }
2385 }
2386
2387 // If the parent wasn't expanded, it's possible that we didn't have a
2388 // node corresponding to 'item' and so there's nothing left to do.
2389 if ( !itemNode )
2390 {
2391 // If this was the last child to be removed, it's possible the parent
2392 // node became a leaf. Let's ask the model about it.
2393 if ( parentNode->GetChildNodes().empty() )
2394 parentNode->SetHasChildren(GetModel()->IsContainer(parent));
2395
2396 return true;
2397 }
2398
2399 // Delete the item from wxDataViewTreeNode representation:
2400 const int itemsDeleted = 1 + itemNode->GetSubTreeCount();
2401
2402 parentNode->RemoveChild(itemNode);
2403 delete itemNode;
2404 parentNode->ChangeSubTreeCount(-itemsDeleted);
2405
2406 // Make the row number invalid and get a new valid one when user call GetRowCount
2407 m_count = -1;
2408
2409 // If this was the last child to be removed, it's possible the parent
2410 // node became a leaf. Let's ask the model about it.
2411 if ( parentNode->GetChildNodes().empty() )
2412 {
2413 bool isContainer = GetModel()->IsContainer(parent);
2414 parentNode->SetHasChildren(isContainer);
2415 if ( isContainer )
2416 {
2417 // If it's still a container, make sure we show "+" icon for it
2418 // and not "-" one as there is nothing to collapse any more.
2419 if ( parentNode->IsOpen() )
2420 parentNode->ToggleOpen();
2421 }
2422 }
2423
2424 // Update selection by removing 'item' and its entire children tree from the selection.
2425 if ( !m_selection.empty() )
2426 {
2427 // we can't call GetRowByItem() on 'item', as it's already deleted, so compute it from
2428 // the parent ('parentNode') and position in its list of children
2429 int itemRow;
2430 if ( itemPosInNode == 0 )
2431 {
2432 // 1st child, row number is that of the parent parentNode + 1
2433 itemRow = GetRowByItem(parentNode->GetItem()) + 1;
2434 }
2435 else
2436 {
2437 // row number is that of the sibling above 'item' + its subtree if any + 1
2438 const wxDataViewTreeNode *siblingNode = parentNode->GetChildNodes()[itemPosInNode - 1];
2439
2440 itemRow = GetRowByItem(siblingNode->GetItem()) +
2441 siblingNode->GetSubTreeCount() +
2442 1;
2443 }
2444
2445 wxDataViewSelection newsel(wxDataViewSelectionCmp);
2446
2447 const size_t numSelections = m_selection.size();
2448 for ( size_t i = 0; i < numSelections; ++i )
2449 {
2450 const int s = m_selection[i];
2451 if ( s < itemRow )
2452 newsel.push_back(s);
2453 else if ( s >= itemRow + itemsDeleted )
2454 newsel.push_back(s - itemsDeleted);
2455 // else: deleted item, remove from selection
2456 }
2457
2458 m_selection = newsel;
2459 }
2460 }
2461
2462 // Change the current row to the last row if the current exceed the max row number
2463 if ( m_currentRow >= GetRowCount() )
2464 ChangeCurrentRow(m_count - 1);
2465
2466 GetOwner()->InvalidateColBestWidths();
2467 UpdateDisplay();
2468
2469 return true;
2470 }
2471
2472 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
2473 {
2474 SortPrepare();
2475 g_model->Resort();
2476
2477 GetOwner()->InvalidateColBestWidths();
2478
2479 // Send event
2480 wxWindow *parent = GetParent();
2481 wxDataViewEvent le(wxEVT_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2482 le.SetEventObject(parent);
2483 le.SetModel(GetModel());
2484 le.SetItem(item);
2485 parent->ProcessWindowEvent(le);
2486
2487 return true;
2488 }
2489
2490 bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int model_column )
2491 {
2492 int view_column = m_owner->GetModelColumnIndex(model_column);
2493 if ( view_column == wxNOT_FOUND )
2494 return false;
2495
2496 // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
2497 /*#define MAX_VIRTUAL_WIDTH 100000
2498
2499 wxRect rect( 0, row*m_lineHeight, MAX_VIRTUAL_WIDTH, m_lineHeight );
2500 m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2501 Refresh( true, &rect );
2502
2503 return true;
2504 */
2505 SortPrepare();
2506 g_model->Resort();
2507
2508 GetOwner()->InvalidateColBestWidth(view_column);
2509
2510 // Send event
2511 wxWindow *parent = GetParent();
2512 wxDataViewEvent le(wxEVT_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
2513 le.SetEventObject(parent);
2514 le.SetModel(GetModel());
2515 le.SetItem(item);
2516 le.SetColumn(view_column);
2517 le.SetDataViewColumn(GetOwner()->GetColumn(view_column));
2518 parent->ProcessWindowEvent(le);
2519
2520 return true;
2521 }
2522
2523 bool wxDataViewMainWindow::Cleared()
2524 {
2525 DestroyTree();
2526 m_selection.Clear();
2527 m_currentRow = (unsigned)-1;
2528
2529 if (GetModel())
2530 {
2531 SortPrepare();
2532 BuildTree( GetModel() );
2533 }
2534 else
2535 {
2536 m_count = 0;
2537 }
2538
2539 GetOwner()->InvalidateColBestWidths();
2540 UpdateDisplay();
2541
2542 return true;
2543 }
2544
2545 void wxDataViewMainWindow::UpdateDisplay()
2546 {
2547 m_dirty = true;
2548 m_underMouse = NULL;
2549 }
2550
2551 void wxDataViewMainWindow::OnInternalIdle()
2552 {
2553 wxWindow::OnInternalIdle();
2554
2555 if (m_dirty)
2556 {
2557 RecalculateDisplay();
2558 m_dirty = false;
2559 }
2560 }
2561
2562 void wxDataViewMainWindow::RecalculateDisplay()
2563 {
2564 wxDataViewModel *model = GetModel();
2565 if (!model)
2566 {
2567 Refresh();
2568 return;
2569 }
2570
2571 int width = GetEndOfLastCol();
2572 int height = GetLineStart( GetRowCount() );
2573
2574 SetVirtualSize( width, height );
2575 GetOwner()->SetScrollRate( 10, m_lineHeight );
2576
2577 Refresh();
2578 }
2579
2580 void wxDataViewMainWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
2581 {
2582 m_underMouse = NULL;
2583
2584 wxWindow::ScrollWindow( dx, dy, rect );
2585
2586 if (GetOwner()->m_headerArea)
2587 GetOwner()->m_headerArea->ScrollWindow( dx, 0 );
2588 }
2589
2590 void wxDataViewMainWindow::ScrollTo( int rows, int column )
2591 {
2592 m_underMouse = NULL;
2593
2594 int x, y;
2595 m_owner->GetScrollPixelsPerUnit( &x, &y );
2596 int sy = GetLineStart( rows )/y;
2597 int sx = -1;
2598 if( column != -1 )
2599 {
2600 wxRect rect = GetClientRect();
2601 int colnum = 0;
2602 int x_start, w = 0;
2603 int xx, yy, xe;
2604 m_owner->CalcUnscrolledPosition( rect.x, rect.y, &xx, &yy );
2605 for (x_start = 0; colnum < column; colnum++)
2606 {
2607 wxDataViewColumn *col = GetOwner()->GetColumnAt(colnum);
2608 if (col->IsHidden())
2609 continue; // skip it!
2610
2611 w = col->GetWidth();
2612 x_start += w;
2613 }
2614
2615 int x_end = x_start + w;
2616 xe = xx + rect.width;
2617 if( x_end > xe )
2618 {
2619 sx = ( xx + x_end - xe )/x;
2620 }
2621 if( x_start < xx )
2622 {
2623 sx = x_start/x;
2624 }
2625 }
2626 m_owner->Scroll( sx, sy );
2627 }
2628
2629 int wxDataViewMainWindow::GetCountPerPage() const
2630 {
2631 wxSize size = GetClientSize();
2632 return size.y / m_lineHeight;
2633 }
2634
2635 int wxDataViewMainWindow::GetEndOfLastCol() const
2636 {
2637 int width = 0;
2638 unsigned int i;
2639 for (i = 0; i < GetOwner()->GetColumnCount(); i++)
2640 {
2641 const wxDataViewColumn *c =
2642 const_cast<wxDataViewCtrl*>(GetOwner())->GetColumnAt( i );
2643
2644 if (!c->IsHidden())
2645 width += c->GetWidth();
2646 }
2647 return width;
2648 }
2649
2650 unsigned int wxDataViewMainWindow::GetFirstVisibleRow() const
2651 {
2652 int x = 0;
2653 int y = 0;
2654 m_owner->CalcUnscrolledPosition( x, y, &x, &y );
2655
2656 return GetLineAt( y );
2657 }
2658
2659 unsigned int wxDataViewMainWindow::GetLastVisibleRow()
2660 {
2661 wxSize client_size = GetClientSize();
2662 m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
2663 &client_size.x, &client_size.y );
2664
2665 // we should deal with the pixel here
2666 unsigned int row = GetLineAt(client_size.y) - 1;
2667
2668 return wxMin( GetRowCount()-1, row );
2669 }
2670
2671 unsigned int wxDataViewMainWindow::GetRowCount() const
2672 {
2673 if ( m_count == -1 )
2674 {
2675 wxDataViewMainWindow* const
2676 self = const_cast<wxDataViewMainWindow*>(this);
2677 self->m_count = RecalculateCount();
2678 self->UpdateDisplay();
2679 }
2680 return m_count;
2681 }
2682
2683 void wxDataViewMainWindow::ChangeCurrentRow( unsigned int row )
2684 {
2685 m_currentRow = row;
2686
2687 // send event
2688 }
2689
2690 void wxDataViewMainWindow::SelectAllRows( bool on )
2691 {
2692 if (IsEmpty())
2693 return;
2694
2695 if (on)
2696 {
2697 m_selection.Clear();
2698 for (unsigned int i = 0; i < GetRowCount(); i++)
2699 m_selection.Add( i );
2700 Refresh();
2701 }
2702 else
2703 {
2704 unsigned int first_visible = GetFirstVisibleRow();
2705 unsigned int last_visible = GetLastVisibleRow();
2706 unsigned int i;
2707 for (i = 0; i < m_selection.GetCount(); i++)
2708 {
2709 unsigned int row = m_selection[i];
2710 if ((row >= first_visible) && (row <= last_visible))
2711 RefreshRow( row );
2712 }
2713 m_selection.Clear();
2714 }
2715 }
2716
2717 void wxDataViewMainWindow::SelectRow( unsigned int row, bool on )
2718 {
2719 if (m_selection.Index( row ) == wxNOT_FOUND)
2720 {
2721 if (on)
2722 {
2723 m_selection.Add( row );
2724 RefreshRow( row );
2725 }
2726 }
2727 else
2728 {
2729 if (!on)
2730 {
2731 m_selection.Remove( row );
2732 RefreshRow( row );
2733 }
2734 }
2735 }
2736
2737 void wxDataViewMainWindow::SelectRows( unsigned int from, unsigned int to, bool on )
2738 {
2739 if (from > to)
2740 {
2741 unsigned int tmp = from;
2742 from = to;
2743 to = tmp;
2744 }
2745
2746 unsigned int i;
2747 for (i = from; i <= to; i++)
2748 {
2749 if (m_selection.Index( i ) == wxNOT_FOUND)
2750 {
2751 if (on)
2752 m_selection.Add( i );
2753 }
2754 else
2755 {
2756 if (!on)
2757 m_selection.Remove( i );
2758 }
2759 }
2760 RefreshRows( from, to );
2761 }
2762
2763 void wxDataViewMainWindow::Select( const wxArrayInt& aSelections )
2764 {
2765 for (size_t i=0; i < aSelections.GetCount(); i++)
2766 {
2767 int n = aSelections[i];
2768
2769 m_selection.Add( n );
2770 RefreshRow( n );
2771 }
2772 }
2773
2774 void wxDataViewMainWindow::ReverseRowSelection( unsigned int row )
2775 {
2776 if (m_selection.Index( row ) == wxNOT_FOUND)
2777 m_selection.Add( row );
2778 else
2779 m_selection.Remove( row );
2780 RefreshRow( row );
2781 }
2782
2783 bool wxDataViewMainWindow::IsRowSelected( unsigned int row )
2784 {
2785 return (m_selection.Index( row ) != wxNOT_FOUND);
2786 }
2787
2788 void wxDataViewMainWindow::SendSelectionChangedEvent( const wxDataViewItem& item)
2789 {
2790 wxWindow *parent = GetParent();
2791 wxDataViewEvent le(wxEVT_DATAVIEW_SELECTION_CHANGED, parent->GetId());
2792
2793 le.SetEventObject(parent);
2794 le.SetModel(GetModel());
2795 le.SetItem( item );
2796
2797 parent->ProcessWindowEvent(le);
2798 }
2799
2800 void wxDataViewMainWindow::RefreshRow( unsigned int row )
2801 {
2802 wxRect rect( 0, GetLineStart( row ), GetEndOfLastCol(), GetLineHeight( row ) );
2803 m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2804
2805 wxSize client_size = GetClientSize();
2806 wxRect client_rect( 0, 0, client_size.x, client_size.y );
2807 wxRect intersect_rect = client_rect.Intersect( rect );
2808 if (intersect_rect.width > 0)
2809 Refresh( true, &intersect_rect );
2810 }
2811
2812 void wxDataViewMainWindow::RefreshRows( unsigned int from, unsigned int to )
2813 {
2814 if (from > to)
2815 {
2816 unsigned int tmp = to;
2817 to = from;
2818 from = tmp;
2819 }
2820
2821 wxRect rect( 0, GetLineStart( from ), GetEndOfLastCol(), GetLineStart( (to-from+1) ) );
2822 m_owner->CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2823
2824 wxSize client_size = GetClientSize();
2825 wxRect client_rect( 0, 0, client_size.x, client_size.y );
2826 wxRect intersect_rect = client_rect.Intersect( rect );
2827 if (intersect_rect.width > 0)
2828 Refresh( true, &intersect_rect );
2829 }
2830
2831 void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
2832 {
2833 wxSize client_size = GetClientSize();
2834 int start = GetLineStart( firstRow );
2835 m_owner->CalcScrolledPosition( start, 0, &start, NULL );
2836 if (start > client_size.y) return;
2837
2838 wxRect rect( 0, start, client_size.x, client_size.y - start );
2839
2840 Refresh( true, &rect );
2841 }
2842
2843 wxRect wxDataViewMainWindow::GetLineRect( unsigned int row ) const
2844 {
2845 wxRect rect;
2846 rect.x = 0;
2847 rect.y = GetLineStart( row );
2848 rect.width = GetEndOfLastCol();
2849 rect.height = GetLineHeight( row );
2850
2851 return rect;
2852 }
2853
2854 int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
2855 {
2856 const wxDataViewModel *model = GetModel();
2857
2858 if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2859 {
2860 // TODO make more efficient
2861
2862 int start = 0;
2863
2864 unsigned int r;
2865 for (r = 0; r < row; r++)
2866 {
2867 const wxDataViewTreeNode* node = GetTreeNodeByRow(r);
2868 if (!node) return start;
2869
2870 wxDataViewItem item = node->GetItem();
2871
2872 unsigned int cols = GetOwner()->GetColumnCount();
2873 unsigned int col;
2874 int height = m_lineHeight;
2875 for (col = 0; col < cols; col++)
2876 {
2877 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2878 if (column->IsHidden())
2879 continue; // skip it!
2880
2881 if ((col != 0) &&
2882 model->IsContainer(item) &&
2883 !model->HasContainerColumns(item))
2884 continue; // skip it!
2885
2886 wxDataViewRenderer *renderer =
2887 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2888 renderer->PrepareForItem(model, item, column->GetModelColumn());
2889
2890 height = wxMax( height, renderer->GetSize().y );
2891 }
2892
2893 start += height;
2894 }
2895
2896 return start;
2897 }
2898 else
2899 {
2900 return row * m_lineHeight;
2901 }
2902 }
2903
2904 int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
2905 {
2906 const wxDataViewModel *model = GetModel();
2907
2908 // check for the easy case first
2909 if ( !GetOwner()->HasFlag(wxDV_VARIABLE_LINE_HEIGHT) )
2910 return y / m_lineHeight;
2911
2912 // TODO make more efficient
2913 unsigned int row = 0;
2914 unsigned int yy = 0;
2915 for (;;)
2916 {
2917 const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2918 if (!node)
2919 {
2920 // not really correct...
2921 return row + ((y-yy) / m_lineHeight);
2922 }
2923
2924 wxDataViewItem item = node->GetItem();
2925
2926 unsigned int cols = GetOwner()->GetColumnCount();
2927 unsigned int col;
2928 int height = m_lineHeight;
2929 for (col = 0; col < cols; col++)
2930 {
2931 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2932 if (column->IsHidden())
2933 continue; // skip it!
2934
2935 if ((col != 0) &&
2936 model->IsContainer(item) &&
2937 !model->HasContainerColumns(item))
2938 continue; // skip it!
2939
2940 wxDataViewRenderer *renderer =
2941 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2942 renderer->PrepareForItem(model, item, column->GetModelColumn());
2943
2944 height = wxMax( height, renderer->GetSize().y );
2945 }
2946
2947 yy += height;
2948 if (y < yy)
2949 return row;
2950
2951 row++;
2952 }
2953 }
2954
2955 int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
2956 {
2957 const wxDataViewModel *model = GetModel();
2958
2959 if (GetOwner()->GetWindowStyle() & wxDV_VARIABLE_LINE_HEIGHT)
2960 {
2961 wxASSERT( !IsVirtualList() );
2962
2963 const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
2964 // wxASSERT( node );
2965 if (!node) return m_lineHeight;
2966
2967 wxDataViewItem item = node->GetItem();
2968
2969 int height = m_lineHeight;
2970
2971 unsigned int cols = GetOwner()->GetColumnCount();
2972 unsigned int col;
2973 for (col = 0; col < cols; col++)
2974 {
2975 const wxDataViewColumn *column = GetOwner()->GetColumn(col);
2976 if (column->IsHidden())
2977 continue; // skip it!
2978
2979 if ((col != 0) &&
2980 model->IsContainer(item) &&
2981 !model->HasContainerColumns(item))
2982 continue; // skip it!
2983
2984 wxDataViewRenderer *renderer =
2985 const_cast<wxDataViewRenderer*>(column->GetRenderer());
2986 renderer->PrepareForItem(model, item, column->GetModelColumn());
2987
2988 height = wxMax( height, renderer->GetSize().y );
2989 }
2990
2991 return height;
2992 }
2993 else
2994 {
2995 return m_lineHeight;
2996 }
2997 }
2998
2999
3000 class RowToTreeNodeJob: public DoJob
3001 {
3002 public:
3003 RowToTreeNodeJob( unsigned int row , int current, wxDataViewTreeNode * node )
3004 {
3005 this->row = row;
3006 this->current = current;
3007 ret = NULL;
3008 parent = node;
3009 }
3010
3011 virtual int operator() ( wxDataViewTreeNode * node )
3012 {
3013 current ++;
3014 if( current == static_cast<int>(row))
3015 {
3016 ret = node;
3017 return DoJob::DONE;
3018 }
3019
3020 if( node->GetSubTreeCount() + current < static_cast<int>(row) )
3021 {
3022 current += node->GetSubTreeCount();
3023 return DoJob::SKIP_SUBTREE;
3024 }
3025 else
3026 {
3027 parent = node;
3028
3029 // If the current node has only leaf children, we can find the
3030 // desired node directly. This can speed up finding the node
3031 // in some cases, and will have a very good effect for list views.
3032 if ( node->HasChildren() &&
3033 (int)node->GetChildNodes().size() == node->GetSubTreeCount() )
3034 {
3035 const int index = static_cast<int>(row) - current - 1;
3036 ret = node->GetChildNodes()[index];
3037 return DoJob::DONE;
3038 }
3039
3040 return DoJob::CONTINUE;
3041 }
3042 }
3043
3044 wxDataViewTreeNode * GetResult() const
3045 { return ret; }
3046
3047 private:
3048 unsigned int row;
3049 int current;
3050 wxDataViewTreeNode * ret;
3051 wxDataViewTreeNode * parent;
3052 };
3053
3054 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
3055 {
3056 wxASSERT( !IsVirtualList() );
3057
3058 if ( row == (unsigned)-1 )
3059 return NULL;
3060
3061 RowToTreeNodeJob job( row , -2, m_root );
3062 Walker( m_root , job );
3063 return job.GetResult();
3064 }
3065
3066 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
3067 {
3068 wxDataViewItem item;
3069 if (IsVirtualList())
3070 {
3071 if ( row < GetRowCount() )
3072 item = wxDataViewItem(wxUIntToPtr(row+1));
3073 }
3074 else
3075 {
3076 wxDataViewTreeNode *node = GetTreeNodeByRow(row);
3077 if ( node )
3078 item = node->GetItem();
3079 }
3080
3081 return item;
3082 }
3083
3084 bool
3085 wxDataViewMainWindow::SendExpanderEvent(wxEventType type,
3086 const wxDataViewItem& item)
3087 {
3088 wxWindow *parent = GetParent();
3089 wxDataViewEvent le(type, parent->GetId());
3090
3091 le.SetEventObject(parent);
3092 le.SetModel(GetModel());
3093 le.SetItem( item );
3094
3095 return !parent->ProcessWindowEvent(le) || le.IsAllowed();
3096 }
3097
3098 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
3099 {
3100 if (IsList())
3101 return false;
3102
3103 wxDataViewTreeNode * node = GetTreeNodeByRow(row);
3104 if (!node)
3105 return false;
3106
3107 if (!node->HasChildren())
3108 return false;
3109
3110 return node->IsOpen();
3111 }
3112
3113 bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
3114 {
3115 if (IsList())
3116 return false;
3117
3118 wxDataViewTreeNode * node = GetTreeNodeByRow(row);
3119 if (!node)
3120 return false;
3121
3122 if (!node->HasChildren())
3123 return false;
3124
3125 return true;
3126 }
3127
3128 void wxDataViewMainWindow::Expand( unsigned int row )
3129 {
3130 if (IsList())
3131 return;
3132
3133 wxDataViewTreeNode * node = GetTreeNodeByRow(row);
3134 if (!node)
3135 return;
3136
3137 if (!node->HasChildren())
3138 return;
3139
3140 if (!node->IsOpen())
3141 {
3142 if ( !SendExpanderEvent(wxEVT_DATAVIEW_ITEM_EXPANDING, node->GetItem()) )
3143 {
3144 // Vetoed by the event handler.
3145 return;
3146 }
3147
3148 node->ToggleOpen();
3149
3150 // build the children of current node
3151 if( node->GetChildNodes().empty() )
3152 {
3153 SortPrepare();
3154 ::BuildTreeHelper(GetModel(), node->GetItem(), node);
3155 }
3156
3157 // By expanding the node all row indices that are currently in the selection list
3158 // and are greater than our node have become invalid. So we have to correct that now.
3159 const unsigned rowAdjustment = node->GetSubTreeCount();
3160 for(unsigned i=0; i<m_selection.size(); ++i)
3161 {
3162 const unsigned testRow = m_selection[i];
3163 // all rows above us are not affected, so skip them
3164 if(testRow <= row)
3165 continue;
3166
3167 m_selection[i] += rowAdjustment;
3168 }
3169
3170 if(m_currentRow > row)
3171 ChangeCurrentRow(m_currentRow + rowAdjustment);
3172
3173 m_count = -1;
3174 UpdateDisplay();
3175 // Send the expanded event
3176 SendExpanderEvent(wxEVT_DATAVIEW_ITEM_EXPANDED,node->GetItem());
3177 }
3178 }
3179
3180 void wxDataViewMainWindow::Collapse(unsigned int row)
3181 {
3182 if (IsList())
3183 return;
3184
3185 wxDataViewTreeNode *node = GetTreeNodeByRow(row);
3186 if (!node)
3187 return;
3188
3189 if (!node->HasChildren())
3190 return;
3191
3192 if (node->IsOpen())
3193 {
3194 if ( !SendExpanderEvent(wxEVT_DATAVIEW_ITEM_COLLAPSING,node->GetItem()) )
3195 {
3196 // Vetoed by the event handler.
3197 return;
3198 }
3199
3200 // Find out if there are selected items below the current node.
3201 bool selectCollapsingRow = false;
3202 const unsigned rowAdjustment = node->GetSubTreeCount();
3203 unsigned maxRowToBeTested = row + rowAdjustment;
3204 for(unsigned i=0; i<m_selection.size(); ++i)
3205 {
3206 const unsigned testRow = m_selection[i];
3207 if(testRow > row && testRow <= maxRowToBeTested)
3208 {
3209 selectCollapsingRow = true;
3210 // get out as soon as we have found a node that is selected
3211 break;
3212 }
3213 }
3214
3215 node->ToggleOpen();
3216
3217 // If the node to be closed has selected items the user won't see those any longer.
3218 // We select the collapsing node in this case.
3219 if(selectCollapsingRow)
3220 {
3221 SelectAllRows(false);
3222 ChangeCurrentRow(row);
3223 SelectRow(row, true);
3224 SendSelectionChangedEvent(GetItemByRow(row));
3225 }
3226 else
3227 {
3228 // if there were no selected items below our node we still need to "fix" the
3229 // selection list to adjust for the changing of the row indices.
3230 // We actually do the opposite of what we are doing in Expand().
3231 for(unsigned i=0; i<m_selection.size(); ++i)
3232 {
3233 const unsigned testRow = m_selection[i];
3234 // all rows above us are not affected, so skip them
3235 if(testRow <= row)
3236 continue;
3237
3238 m_selection[i] -= rowAdjustment;
3239 }
3240
3241 // if the "current row" is being collapsed away we change it to the current row ;-)
3242 if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
3243 ChangeCurrentRow(row);
3244 else if(m_currentRow > row)
3245 ChangeCurrentRow(m_currentRow - rowAdjustment);
3246 }
3247
3248 m_count = -1;
3249 UpdateDisplay();
3250 SendExpanderEvent(wxEVT_DATAVIEW_ITEM_COLLAPSED,node->GetItem());
3251 }
3252 }
3253
3254 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
3255 {
3256 const wxDataViewModel * model = GetModel();
3257 if( model == NULL )
3258 return NULL;
3259
3260 if (!item.IsOk())
3261 return m_root;
3262
3263 // Compose the parent-chain for the item we are looking for
3264 wxVector<wxDataViewItem> parentChain;
3265 wxDataViewItem it( item );
3266 while( it.IsOk() )
3267 {
3268 parentChain.push_back(it);
3269 it = model->GetParent(it);
3270 }
3271
3272 // Find the item along the parent-chain.
3273 // This algorithm is designed to speed up the node-finding method
3274 wxDataViewTreeNode* node = m_root;
3275 for( unsigned iter = parentChain.size()-1; ; --iter )
3276 {
3277 if( node->HasChildren() )
3278 {
3279 if( node->GetChildNodes().empty() )
3280 {
3281 // Even though the item is a container, it doesn't have any
3282 // child nodes in the control's representation yet. We have
3283 // to realize its subtree now.
3284 SortPrepare();
3285 ::BuildTreeHelper(model, node->GetItem(), node);
3286 }
3287
3288 const wxDataViewTreeNodes& nodes = node->GetChildNodes();
3289 bool found = false;
3290
3291 for (unsigned i = 0; i < nodes.GetCount(); ++i)
3292 {
3293 wxDataViewTreeNode* currentNode = nodes[i];
3294 if (currentNode->GetItem() == parentChain[iter])
3295 {
3296 if (currentNode->GetItem() == item)
3297 return currentNode;
3298
3299 node = currentNode;
3300 found = true;
3301 break;
3302 }
3303 }
3304 if (!found)
3305 return NULL;
3306 }
3307 else
3308 return NULL;
3309
3310 if ( !iter )
3311 break;
3312 }
3313 return NULL;
3314 }
3315
3316 void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
3317 wxDataViewColumn* &column )
3318 {
3319 wxDataViewColumn *col = NULL;
3320 unsigned int cols = GetOwner()->GetColumnCount();
3321 unsigned int colnum = 0;
3322 int x, y;
3323 m_owner->CalcUnscrolledPosition( point.x, point.y, &x, &y );
3324 for (unsigned x_start = 0; colnum < cols; colnum++)
3325 {
3326 col = GetOwner()->GetColumnAt(colnum);
3327 if (col->IsHidden())
3328 continue; // skip it!
3329
3330 unsigned int w = col->GetWidth();
3331 if (x_start+w >= (unsigned int)x)
3332 break;
3333
3334 x_start += w;
3335 }
3336
3337 column = col;
3338 item = GetItemByRow( GetLineAt( y ) );
3339 }
3340
3341 wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
3342 const wxDataViewColumn* column )
3343 {
3344 int xpos = 0;
3345 int width = 0;
3346
3347 unsigned int cols = GetOwner()->GetColumnCount();
3348 // If column is null the loop will compute the combined width of all columns.
3349 // Otherwise, it will compute the x position of the column we are looking for.
3350 for (unsigned int i = 0; i < cols; i++)
3351 {
3352 wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
3353
3354 if (col == column)
3355 break;
3356
3357 if (col->IsHidden())
3358 continue; // skip it!
3359
3360 xpos += col->GetWidth();
3361 width += col->GetWidth();
3362 }
3363
3364 if(column != 0)
3365 {
3366 // If we have a column, we need can get its width directly.
3367 if(column->IsHidden())
3368 width = 0;
3369 else
3370 width = column->GetWidth();
3371
3372 }
3373 else
3374 {
3375 // If we have no column, we reset the x position back to zero.
3376 xpos = 0;
3377 }
3378
3379 // we have to take an expander column into account and compute its indentation
3380 // to get the correct x position where the actual text is
3381 int indent = 0;
3382 int row = GetRowByItem(item);
3383 if (!IsList() &&
3384 (column == 0 || GetExpanderColumnOrFirstOne(GetOwner()) == column) )
3385 {
3386 wxDataViewTreeNode* node = GetTreeNodeByRow(row);
3387 indent = GetOwner()->GetIndent() * node->GetIndentLevel();
3388 indent = indent + m_lineHeight; // use m_lineHeight as the width of the expander
3389 }
3390
3391 wxRect itemRect( xpos + indent,
3392 GetLineStart( row ),
3393 width - indent,
3394 GetLineHeight( row ) );
3395
3396 GetOwner()->CalcScrolledPosition( itemRect.x, itemRect.y,
3397 &itemRect.x, &itemRect.y );
3398
3399 return itemRect;
3400 }
3401
3402 int wxDataViewMainWindow::RecalculateCount() const
3403 {
3404 if (IsVirtualList())
3405 {
3406 wxDataViewVirtualListModel *list_model =
3407 (wxDataViewVirtualListModel*) GetModel();
3408
3409 return list_model->GetCount();
3410 }
3411 else
3412 {
3413 return m_root->GetSubTreeCount();
3414 }
3415 }
3416
3417 class ItemToRowJob : public DoJob
3418 {
3419 public:
3420 ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
3421 : m_iter(iter),
3422 item(item_)
3423 {
3424 ret = -1;
3425 }
3426
3427 // Maybe binary search will help to speed up this process
3428 virtual int operator() ( wxDataViewTreeNode * node)
3429 {
3430 ret ++;
3431 if( node->GetItem() == item )
3432 {
3433 return DoJob::DONE;
3434 }
3435
3436 if( node->GetItem() == *m_iter )
3437 {
3438 m_iter++;
3439 return DoJob::CONTINUE;
3440 }
3441 else
3442 {
3443 ret += node->GetSubTreeCount();
3444 return DoJob::SKIP_SUBTREE;
3445 }
3446
3447 }
3448
3449 // the row number is begin from zero
3450 int GetResult() const
3451 { return ret -1; }
3452
3453 private:
3454 wxVector<wxDataViewItem>::reverse_iterator m_iter;
3455 wxDataViewItem item;
3456 int ret;
3457
3458 };
3459
3460 int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
3461 {
3462 const wxDataViewModel * model = GetModel();
3463 if( model == NULL )
3464 return -1;
3465
3466 if (IsVirtualList())
3467 {
3468 return wxPtrToUInt( item.GetID() ) -1;
3469 }
3470 else
3471 {
3472 if( !item.IsOk() )
3473 return -1;
3474
3475 // Compose the parent-chain of the item we are looking for
3476 wxVector<wxDataViewItem> parentChain;
3477 wxDataViewItem it( item );
3478 while( it.IsOk() )
3479 {
3480 parentChain.push_back(it);
3481 it = model->GetParent(it);
3482 }
3483
3484 // add an 'invalid' item to represent our 'invisible' root node
3485 parentChain.push_back(wxDataViewItem());
3486
3487 // the parent chain was created by adding the deepest parent first.
3488 // so if we want to start at the root node, we have to iterate backwards through the vector
3489 ItemToRowJob job( item, parentChain.rbegin() );
3490 Walker( m_root, job );
3491 return job.GetResult();
3492 }
3493 }
3494
3495 static void BuildTreeHelper( const wxDataViewModel * model, const wxDataViewItem & item,
3496 wxDataViewTreeNode * node)
3497 {
3498 if( !model->IsContainer( item ) )
3499 return;
3500
3501 wxDataViewItemArray children;
3502 unsigned int num = model->GetChildren( item, children);
3503
3504 for ( unsigned int index = 0; index < num; index++ )
3505 {
3506 wxDataViewTreeNode *n = new wxDataViewTreeNode(node, children[index]);
3507
3508 if( model->IsContainer(children[index]) )
3509 n->SetHasChildren( true );
3510
3511 node->InsertChild(n, index);
3512 }
3513
3514 wxASSERT( node->IsOpen() );
3515 node->ChangeSubTreeCount(+num);
3516 }
3517
3518 void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
3519 {
3520 DestroyTree();
3521
3522 if (GetModel()->IsVirtualListModel())
3523 {
3524 m_count = -1;
3525 return;
3526 }
3527
3528 m_root = wxDataViewTreeNode::CreateRootNode();
3529
3530 // First we define a invalid item to fetch the top-level elements
3531 wxDataViewItem item;
3532 SortPrepare();
3533 BuildTreeHelper( model, item, m_root);
3534 m_count = -1;
3535 }
3536
3537 void wxDataViewMainWindow::DestroyTree()
3538 {
3539 if (!IsVirtualList())
3540 {
3541 wxDELETE(m_root);
3542 m_count = 0;
3543 }
3544 }
3545
3546 wxDataViewColumn*
3547 wxDataViewMainWindow::FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode)
3548 {
3549 // Edit the current column editable in 'mode'. If no column is focused
3550 // (typically because the user has full row selected), try to find the
3551 // first editable column (this would typically be a checkbox for
3552 // wxDATAVIEW_CELL_ACTIVATABLE and we don't want to force the user to set
3553 // focus on the checkbox column; or on the only editable text column).
3554
3555 wxDataViewColumn *candidate = m_currentCol;
3556
3557 if ( candidate &&
3558 !IsCellEditableInMode(item, candidate, mode) &&
3559 !m_currentColSetByKeyboard )
3560 {
3561 // If current column was set by mouse to something not editable (in
3562 // 'mode') and the user pressed Space/F2 to edit it, treat the
3563 // situation as if there was whole-row focus, because that's what is
3564 // visually indicated and the mouse click could very well be targeted
3565 // on the row rather than on an individual cell.
3566 //
3567 // But if it was done by keyboard, respect that even if the column
3568 // isn't editable, because focus is visually on that column and editing
3569 // something else would be surprising.
3570 candidate = NULL;
3571 }
3572
3573 if ( !candidate )
3574 {
3575 const unsigned cols = GetOwner()->GetColumnCount();
3576 for ( unsigned i = 0; i < cols; i++ )
3577 {
3578 wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
3579 if ( c->IsHidden() )
3580 continue;
3581
3582 if ( IsCellEditableInMode(item, c, mode) )
3583 {
3584 candidate = c;
3585 break;
3586 }
3587 }
3588 }
3589
3590 // If on container item without columns, only the expander column
3591 // may be directly editable:
3592 if ( candidate &&
3593 GetOwner()->GetExpanderColumn() != candidate &&
3594 GetModel()->IsContainer(item) &&
3595 !GetModel()->HasContainerColumns(item) )
3596 {
3597 candidate = GetOwner()->GetExpanderColumn();
3598 }
3599
3600 if ( !candidate )
3601 return NULL;
3602
3603 if ( !IsCellEditableInMode(item, candidate, mode) )
3604 return NULL;
3605
3606 return candidate;
3607 }
3608
3609 bool wxDataViewMainWindow::IsCellEditableInMode(const wxDataViewItem& item,
3610 const wxDataViewColumn *col,
3611 wxDataViewCellMode mode) const
3612 {
3613 if ( col->GetRenderer()->GetMode() != mode )
3614 return false;
3615
3616 if ( !GetModel()->IsEnabled(item, col->GetModelColumn()) )
3617 return false;
3618
3619 return true;
3620 }
3621
3622 void wxDataViewMainWindow::OnCharHook(wxKeyEvent& event)
3623 {
3624 if ( m_editorCtrl )
3625 {
3626 // Handle any keys special for the in-place editor and return without
3627 // calling Skip() below.
3628 switch ( event.GetKeyCode() )
3629 {
3630 case WXK_ESCAPE:
3631 m_editorRenderer->CancelEditing();
3632 return;
3633
3634 case WXK_RETURN:
3635 m_editorRenderer->FinishEditing();
3636 return;
3637 }
3638 }
3639
3640 event.Skip();
3641 }
3642
3643 void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
3644 {
3645 wxWindow * const parent = GetParent();
3646
3647 // propagate the char event upwards
3648 wxKeyEvent eventForParent(event);
3649 eventForParent.SetEventObject(parent);
3650 if ( parent->ProcessWindowEvent(eventForParent) )
3651 return;
3652
3653 if ( parent->HandleAsNavigationKey(event) )
3654 return;
3655
3656 // no item -> nothing to do
3657 if (!HasCurrentRow())
3658 {
3659 event.Skip();
3660 return;
3661 }
3662
3663 // don't use m_linesPerPage directly as it might not be computed yet
3664 const int pageSize = GetCountPerPage();
3665 wxCHECK_RET( pageSize, wxT("should have non zero page size") );
3666
3667 switch ( event.GetKeyCode() )
3668 {
3669 case WXK_RETURN:
3670 if ( event.HasModifiers() )
3671 {
3672 event.Skip();
3673 break;
3674 }
3675 else
3676 {
3677 // Enter activates the item, i.e. sends wxEVT_DATAVIEW_ITEM_ACTIVATED to
3678 // it. Only if that event is not handled do we activate column renderer (which
3679 // is normally done by Space) or even inline editing.
3680
3681 const wxDataViewItem item = GetItemByRow(m_currentRow);
3682
3683 wxDataViewEvent le(wxEVT_DATAVIEW_ITEM_ACTIVATED,
3684 parent->GetId());
3685 le.SetItem(item);
3686 le.SetEventObject(parent);
3687 le.SetModel(GetModel());
3688
3689 if ( parent->ProcessWindowEvent(le) )
3690 break;
3691 // else: fall through to WXK_SPACE handling
3692 }
3693
3694 case WXK_SPACE:
3695 if ( event.HasModifiers() )
3696 {
3697 event.Skip();
3698 break;
3699 }
3700 else
3701 {
3702 // Space toggles activatable items or -- if not activatable --
3703 // starts inline editing (this is normally done using F2 on
3704 // Windows, but Space is common everywhere else, so use it too
3705 // for greater cross-platform compatibility).
3706
3707 const wxDataViewItem item = GetItemByRow(m_currentRow);
3708
3709 // Activate the current activatable column. If not column is focused (typically
3710 // because the user has full row selected), try to find the first activatable
3711 // column (this would typically be a checkbox and we don't want to force the user
3712 // to set focus on the checkbox column).
3713 wxDataViewColumn *activatableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_ACTIVATABLE);
3714
3715 if ( activatableCol )
3716 {
3717 const unsigned colIdx = activatableCol->GetModelColumn();
3718 const wxRect cell_rect = GetOwner()->GetItemRect(item, activatableCol);
3719
3720 wxDataViewRenderer *cell = activatableCol->GetRenderer();
3721 cell->PrepareForItem(GetModel(), item, colIdx);
3722 cell->WXActivateCell(cell_rect, GetModel(), item, colIdx, NULL);
3723
3724 break;
3725 }
3726 // else: fall through to WXK_F2 handling
3727 }
3728
3729 case WXK_F2:
3730 if ( event.HasModifiers() )
3731 {
3732 event.Skip();
3733 break;
3734 }
3735 else
3736 {
3737 if( !m_selection.empty() )
3738 {
3739 // Mimic Windows 7 behavior: edit the item that has focus
3740 // if it is selected and the first selected item if focus
3741 // is out of selection.
3742 int sel;
3743 if ( m_selection.Index(m_currentRow) != wxNOT_FOUND )
3744 sel = m_currentRow;
3745 else
3746 sel = m_selection[0];
3747
3748
3749 const wxDataViewItem item = GetItemByRow(sel);
3750
3751 // Edit the current column. If no column is focused
3752 // (typically because the user has full row selected), try
3753 // to find the first editable column.
3754 wxDataViewColumn *editableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_EDITABLE);
3755
3756 if ( editableCol )
3757 GetOwner()->EditItem(item, editableCol);
3758 }
3759 }
3760 break;
3761
3762 case WXK_UP:
3763 OnVerticalNavigation( -1, event );
3764 break;
3765
3766 case WXK_DOWN:
3767 OnVerticalNavigation( +1, event );
3768 break;
3769 // Add the process for tree expanding/collapsing
3770 case WXK_LEFT:
3771 OnLeftKey();
3772 break;
3773
3774 case WXK_RIGHT:
3775 OnRightKey();
3776 break;
3777
3778 case WXK_END:
3779 OnVerticalNavigation( +(int)GetRowCount(), event );
3780 break;
3781
3782 case WXK_HOME:
3783 OnVerticalNavigation( -(int)GetRowCount(), event );
3784 break;
3785
3786 case WXK_PAGEUP:
3787 OnVerticalNavigation( -(pageSize - 1), event );
3788 break;
3789
3790 case WXK_PAGEDOWN:
3791 OnVerticalNavigation( +(pageSize - 1), event );
3792 break;
3793
3794 default:
3795 event.Skip();
3796 }
3797 }
3798
3799 void wxDataViewMainWindow::OnVerticalNavigation(int delta, const wxKeyEvent& event)
3800 {
3801 // if there is no selection, we cannot move it anywhere
3802 if (!HasCurrentRow() || IsEmpty())
3803 return;
3804
3805 int newRow = (int)m_currentRow + delta;
3806
3807 // let's keep the new row inside the allowed range
3808 if ( newRow < 0 )
3809 newRow = 0;
3810
3811 const int rowCount = (int)GetRowCount();
3812 if ( newRow >= rowCount )
3813 newRow = rowCount - 1;
3814
3815 unsigned int oldCurrent = m_currentRow;
3816 unsigned int newCurrent = (unsigned int)newRow;
3817
3818 // in single selection we just ignore Shift as we can't select several
3819 // items anyhow
3820 if ( event.ShiftDown() && !IsSingleSel() )
3821 {
3822 RefreshRow( oldCurrent );
3823
3824 ChangeCurrentRow( newCurrent );
3825
3826 // select all the items between the old and the new one
3827 if ( oldCurrent > newCurrent )
3828 {
3829 newCurrent = oldCurrent;
3830 oldCurrent = m_currentRow;
3831 }
3832
3833 SelectRows( oldCurrent, newCurrent, true );
3834 if (oldCurrent!=newCurrent)
3835 SendSelectionChangedEvent(GetItemByRow(m_selection[0]));
3836 }
3837 else // !shift
3838 {
3839 RefreshRow( oldCurrent );
3840
3841 // all previously selected items are unselected unless ctrl is held
3842 if ( !event.ControlDown() )
3843 SelectAllRows(false);
3844
3845 ChangeCurrentRow( newCurrent );
3846
3847 if ( !event.ControlDown() )
3848 {
3849 SelectRow( m_currentRow, true );
3850 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
3851 }
3852 else
3853 RefreshRow( m_currentRow );
3854 }
3855
3856 GetOwner()->EnsureVisible( m_currentRow, -1 );
3857 }
3858
3859 void wxDataViewMainWindow::OnLeftKey()
3860 {
3861 if ( IsList() )
3862 {
3863 TryAdvanceCurrentColumn(NULL, /*forward=*/false);
3864 }
3865 else
3866 {
3867 wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3868 if ( !node )
3869 return;
3870
3871 if ( TryAdvanceCurrentColumn(node, /*forward=*/false) )
3872 return;
3873
3874 // Because TryAdvanceCurrentColumn() return false, we are at the first
3875 // column or using whole-row selection. In this situation, we can use
3876 // the standard TreeView handling of the left key.
3877 if (node->HasChildren() && node->IsOpen())
3878 {
3879 Collapse(m_currentRow);
3880 }
3881 else
3882 {
3883 // if the node is already closed, we move the selection to its parent
3884 wxDataViewTreeNode *parent_node = node->GetParent();
3885
3886 if (parent_node)
3887 {
3888 int parent = GetRowByItem( parent_node->GetItem() );
3889 if ( parent >= 0 )
3890 {
3891 unsigned int row = m_currentRow;
3892 SelectRow( row, false);
3893 SelectRow( parent, true );
3894 ChangeCurrentRow( parent );
3895 GetOwner()->EnsureVisible( parent, -1 );
3896 SendSelectionChangedEvent( parent_node->GetItem() );
3897 }
3898 }
3899 }
3900 }
3901 }
3902
3903 void wxDataViewMainWindow::OnRightKey()
3904 {
3905 if ( IsList() )
3906 {
3907 TryAdvanceCurrentColumn(NULL, /*forward=*/true);
3908 }
3909 else
3910 {
3911 wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
3912 if ( !node )
3913 return;
3914
3915 if ( node->HasChildren() )
3916 {
3917 if ( !node->IsOpen() )
3918 {
3919 Expand( m_currentRow );
3920 }
3921 else
3922 {
3923 // if the node is already open, we move the selection to the first child
3924 unsigned int row = m_currentRow;
3925 SelectRow( row, false );
3926 SelectRow( row + 1, true );
3927 ChangeCurrentRow( row + 1 );
3928 GetOwner()->EnsureVisible( row + 1, -1 );
3929 SendSelectionChangedEvent( GetItemByRow(row+1) );
3930 }
3931 }
3932 else
3933 {
3934 TryAdvanceCurrentColumn(node, /*forward=*/true);
3935 }
3936 }
3937 }
3938
3939 bool wxDataViewMainWindow::TryAdvanceCurrentColumn(wxDataViewTreeNode *node, bool forward)
3940 {
3941 if ( GetOwner()->GetColumnCount() == 0 )
3942 return false;
3943
3944 if ( !m_useCellFocus )
3945 return false;
3946
3947 if ( node )
3948 {
3949 // navigation shouldn't work in branch nodes without other columns:
3950 if ( node->HasChildren() && !GetModel()->HasContainerColumns(node->GetItem()) )
3951 return false;
3952 }
3953
3954 if ( m_currentCol == NULL || !m_currentColSetByKeyboard )
3955 {
3956 if ( forward )
3957 {
3958 m_currentCol = GetOwner()->GetColumnAt(1);
3959 m_currentColSetByKeyboard = true;
3960 RefreshRow(m_currentRow);
3961 return true;
3962 }
3963 else
3964 return false;
3965 }
3966
3967 int idx = GetOwner()->GetColumnIndex(m_currentCol) + (forward ? +1 : -1);
3968
3969 if ( idx >= (int)GetOwner()->GetColumnCount() )
3970 return false;
3971
3972 GetOwner()->EnsureVisible(m_currentRow, idx);
3973
3974 if ( idx < 1 )
3975 {
3976 // We are going to the left of the second column. Reset to whole-row
3977 // focus (which means first column would be edited).
3978 m_currentCol = NULL;
3979 RefreshRow(m_currentRow);
3980 return true;
3981 }
3982
3983 m_currentCol = GetOwner()->GetColumnAt(idx);
3984 m_currentColSetByKeyboard = true;
3985 RefreshRow(m_currentRow);
3986 return true;
3987 }
3988
3989 void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
3990 {
3991 if (event.GetEventType() == wxEVT_MOUSEWHEEL)
3992 {
3993 // let the base handle mouse wheel events.
3994 event.Skip();
3995 return;
3996 }
3997
3998 if(event.ButtonDown())
3999 {
4000 // Not skipping button down events would prevent the system from
4001 // setting focus to this window as most (all?) of them do by default,
4002 // so skip it to enable default handling.
4003 event.Skip();
4004 }
4005
4006 int x = event.GetX();
4007 int y = event.GetY();
4008 m_owner->CalcUnscrolledPosition( x, y, &x, &y );
4009 wxDataViewColumn *col = NULL;
4010
4011 int xpos = 0;
4012 unsigned int cols = GetOwner()->GetColumnCount();
4013 unsigned int i;
4014 for (i = 0; i < cols; i++)
4015 {
4016 wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
4017 if (c->IsHidden())
4018 continue; // skip it!
4019
4020 if (x < xpos + c->GetWidth())
4021 {
4022 col = c;
4023 break;
4024 }
4025 xpos += c->GetWidth();
4026 }
4027
4028 wxDataViewModel* const model = GetModel();
4029
4030 const unsigned int current = GetLineAt( y );
4031 const wxDataViewItem item = GetItemByRow(current);
4032
4033 // Handle right clicking here, before everything else as context menu
4034 // events should be sent even when we click outside of any item, unlike all
4035 // the other ones.
4036 if (event.RightUp())
4037 {
4038 wxWindow *parent = GetParent();
4039 wxDataViewEvent le(wxEVT_DATAVIEW_ITEM_CONTEXT_MENU, parent->GetId());
4040 le.SetEventObject(parent);
4041 le.SetModel(model);
4042
4043 if ( item.IsOk() && col )
4044 {
4045 le.SetItem( item );
4046 le.SetColumn( col->GetModelColumn() );
4047 le.SetDataViewColumn( col );
4048 }
4049
4050 parent->ProcessWindowEvent(le);
4051 return;
4052 }
4053
4054 #if wxUSE_DRAG_AND_DROP
4055 if (event.Dragging() || ((m_dragCount > 0) && event.Leaving()))
4056 {
4057 if (m_dragCount == 0)
4058 {
4059 // we have to report the raw, physical coords as we want to be
4060 // able to call HitTest(event.m_pointDrag) from the user code to
4061 // get the item being dragged
4062 m_dragStart = event.GetPosition();
4063 }
4064
4065 m_dragCount++;
4066 if ((m_dragCount < 3) && (event.Leaving()))
4067 m_dragCount = 3;
4068 else if (m_dragCount != 3)
4069 return;
4070
4071 if (event.LeftIsDown())
4072 {
4073 m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
4074 &m_dragStart.x, &m_dragStart.y );
4075 unsigned int drag_item_row = GetLineAt( m_dragStart.y );
4076 wxDataViewItem itemDragged = GetItemByRow( drag_item_row );
4077
4078 // Notify cell about drag
4079 wxDataViewEvent event( wxEVT_DATAVIEW_ITEM_BEGIN_DRAG, m_owner->GetId() );
4080 event.SetEventObject( m_owner );
4081 event.SetItem( itemDragged );
4082 event.SetModel( model );
4083 if (!m_owner->HandleWindowEvent( event ))
4084 return;
4085
4086 if (!event.IsAllowed())
4087 return;
4088
4089 wxDataObject *obj = event.GetDataObject();
4090 if (!obj)
4091 return;
4092
4093 wxDataViewDropSource drag( this, drag_item_row );
4094 drag.SetData( *obj );
4095 /* wxDragResult res = */ drag.DoDragDrop(event.GetDragFlags());
4096 delete obj;
4097 }
4098 return;
4099 }
4100 else
4101 {
4102 m_dragCount = 0;
4103 }
4104 #endif // wxUSE_DRAG_AND_DROP
4105
4106 // Check if we clicked outside the item area.
4107 if ((current >= GetRowCount()) || !col)
4108 {
4109 // Follow Windows convention here: clicking either left or right (but
4110 // not middle) button clears the existing selection.
4111 if (m_owner && (event.LeftDown() || event.RightDown()))
4112 {
4113 if (!GetSelections().empty())
4114 {
4115 m_owner->UnselectAll();
4116 SendSelectionChangedEvent(wxDataViewItem());
4117 }
4118 }
4119 event.Skip();
4120 return;
4121 }
4122
4123 wxDataViewRenderer *cell = col->GetRenderer();
4124 wxDataViewColumn* const
4125 expander = GetExpanderColumnOrFirstOne(GetOwner());
4126
4127 // Test whether the mouse is hovering over the expander (a.k.a tree "+"
4128 // button) and also determine the offset of the real cell start, skipping
4129 // the indentation and the expander itself.
4130 bool hoverOverExpander = false;
4131 int itemOffset = 0;
4132 if ((!IsList()) && (expander == col))
4133 {
4134 wxDataViewTreeNode * node = GetTreeNodeByRow(current);
4135
4136 int indent = node->GetIndentLevel();
4137 itemOffset = GetOwner()->GetIndent()*indent;
4138
4139 if ( node->HasChildren() )
4140 {
4141 // we make the rectangle we are looking in a bit bigger than the actual
4142 // visual expander so the user can hit that little thing reliably
4143 wxRect rect(itemOffset,
4144 GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
4145 m_lineHeight, m_lineHeight);
4146
4147 if( rect.Contains(x, y) )
4148 {
4149 // So the mouse is over the expander
4150 hoverOverExpander = true;
4151 if (m_underMouse && m_underMouse != node)
4152 {
4153 // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
4154 RefreshRow(GetRowByItem(m_underMouse->GetItem()));
4155 }
4156 if (m_underMouse != node)
4157 {
4158 // wxLogMessage("Do the row: %d", current);
4159 RefreshRow(current);
4160 }
4161 m_underMouse = node;
4162 }
4163 }
4164
4165 // Account for the expander as well, even if this item doesn't have it,
4166 // its parent does so it still counts for the offset.
4167 itemOffset += m_lineHeight;
4168 }
4169 if (!hoverOverExpander)
4170 {
4171 if (m_underMouse != NULL)
4172 {
4173 // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
4174 RefreshRow(GetRowByItem(m_underMouse->GetItem()));
4175 m_underMouse = NULL;
4176 }
4177 }
4178
4179 bool simulateClick = false;
4180
4181 if (event.ButtonDClick())
4182 {
4183 m_renameTimer->Stop();
4184 m_lastOnSame = false;
4185 }
4186
4187 bool ignore_other_columns =
4188 ((expander != col) &&
4189 (model->IsContainer(item)) &&
4190 (!model->HasContainerColumns(item)));
4191
4192 if (event.LeftDClick())
4193 {
4194 if(hoverOverExpander)
4195 {
4196 // a double click on the expander will be converted into a "simulated" normal click
4197 simulateClick = true;
4198 }
4199 else if ( current == m_lineLastClicked )
4200 {
4201 wxWindow *parent = GetParent();
4202 wxDataViewEvent le(wxEVT_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
4203 le.SetItem( item );
4204 le.SetColumn( col->GetModelColumn() );
4205 le.SetDataViewColumn( col );
4206 le.SetEventObject(parent);
4207 le.SetModel(GetModel());
4208
4209 parent->ProcessWindowEvent(le);
4210 return;
4211 }
4212 else
4213 {
4214 // The first click was on another item, so don't interpret this as
4215 // a double click, but as a simple click instead
4216 simulateClick = true;
4217 }
4218 }
4219
4220 if (event.LeftUp() && !hoverOverExpander)
4221 {
4222 if (m_lineSelectSingleOnUp != (unsigned int)-1)
4223 {
4224 // select single line
4225 SelectAllRows( false );
4226 SelectRow( m_lineSelectSingleOnUp, true );
4227 SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
4228 }
4229
4230 // If the user click the expander, we do not do editing even if the column
4231 // with expander are editable
4232 if (m_lastOnSame && !ignore_other_columns)
4233 {
4234 if ((col == m_currentCol) && (current == m_currentRow) &&
4235 IsCellEditableInMode(item, col, wxDATAVIEW_CELL_EDITABLE) )
4236 {
4237 m_renameTimer->Start( 100, true );
4238 }
4239 }
4240
4241 m_lastOnSame = false;
4242 m_lineSelectSingleOnUp = (unsigned int)-1;
4243 }
4244 else if(!event.LeftUp())
4245 {
4246 // This is necessary, because after a DnD operation in
4247 // from and to ourself, the up event is swallowed by the
4248 // DnD code. So on next non-up event (which means here and
4249 // now) m_lineSelectSingleOnUp should be reset.
4250 m_lineSelectSingleOnUp = (unsigned int)-1;
4251 }
4252
4253 if (event.RightDown())
4254 {
4255 m_lineBeforeLastClicked = m_lineLastClicked;
4256 m_lineLastClicked = current;
4257
4258 // If the item is already selected, do not update the selection.
4259 // Multi-selections should not be cleared if a selected item is clicked.
4260 if (!IsRowSelected(current))
4261 {
4262 SelectAllRows(false);
4263 const unsigned oldCurrent = m_currentRow;
4264 ChangeCurrentRow(current);
4265 SelectRow(m_currentRow,true);
4266 RefreshRow(oldCurrent);
4267 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4268 }
4269 }
4270 else if (event.MiddleDown())
4271 {
4272 }
4273
4274 if((event.LeftDown() || simulateClick) && hoverOverExpander)
4275 {
4276 wxDataViewTreeNode* node = GetTreeNodeByRow(current);
4277
4278 // hoverOverExpander being true tells us that our node must be
4279 // valid and have children.
4280 // So we don't need any extra checks.
4281 if( node->IsOpen() )
4282 Collapse(current);
4283 else
4284 Expand(current);
4285 }
4286 else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
4287 {
4288 m_lineBeforeLastClicked = m_lineLastClicked;
4289 m_lineLastClicked = current;
4290
4291 unsigned int oldCurrentRow = m_currentRow;
4292 bool oldWasSelected = IsRowSelected(m_currentRow);
4293
4294 bool cmdModifierDown = event.CmdDown();
4295 if ( IsSingleSel() || !(cmdModifierDown || event.ShiftDown()) )
4296 {
4297 if ( IsSingleSel() || !IsRowSelected(current) )
4298 {
4299 SelectAllRows( false );
4300 ChangeCurrentRow(current);
4301 SelectRow(m_currentRow,true);
4302 SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
4303 }
4304 else // multi sel & current is highlighted & no mod keys
4305 {
4306 m_lineSelectSingleOnUp = current;
4307 ChangeCurrentRow(current); // change focus
4308 }
4309 }
4310 else // multi sel & either ctrl or shift is down
4311 {
4312 if (cmdModifierDown)
4313 {
4314 ChangeCurrentRow(current);
4315 ReverseRowSelection(m_currentRow);
4316 SendSelectionChangedEvent(GetItemByRow(m_currentRow));
4317 }
4318 else if (event.ShiftDown())
4319 {
4320 ChangeCurrentRow(current);
4321
4322 unsigned int lineFrom = oldCurrentRow,
4323 lineTo = current;
4324
4325 if ( lineTo < lineFrom )
4326 {
4327 lineTo = lineFrom;
4328 lineFrom = m_currentRow;
4329 }
4330
4331 SelectRows(lineFrom, lineTo, true);
4332 SendSelectionChangedEvent(GetItemByRow(m_selection[0]) );
4333 }
4334 else // !ctrl, !shift
4335 {
4336 // test in the enclosing if should make it impossible
4337 wxFAIL_MSG( wxT("how did we get here?") );
4338 }
4339 }
4340
4341 if (m_currentRow != oldCurrentRow)
4342 RefreshRow( oldCurrentRow );
4343
4344 wxDataViewColumn *oldCurrentCol = m_currentCol;
4345
4346 // Update selection here...
4347 m_currentCol = col;
4348 m_currentColSetByKeyboard = false;
4349
4350 // This flag is used to decide whether we should start editing the item
4351 // label. We do it if the user clicks twice (but not double clicks,
4352 // i.e. simulateClick is false) on the same item but not if the click
4353 // was used for something else already, e.g. selecting the item (so it
4354 // must have been already selected) or giving the focus to the control
4355 // (so it must have had focus already).
4356 m_lastOnSame = !simulateClick && ((col == oldCurrentCol) &&
4357 (current == oldCurrentRow)) && oldWasSelected &&
4358 HasFocus();
4359
4360 // Call ActivateCell() after everything else as under GTK+
4361 if ( IsCellEditableInMode(item, col, wxDATAVIEW_CELL_ACTIVATABLE) )
4362 {
4363 // notify cell about click
4364 cell->PrepareForItem(model, item, col->GetModelColumn());
4365
4366 wxRect cell_rect( xpos + itemOffset,
4367 GetLineStart( current ),
4368 col->GetWidth() - itemOffset,
4369 GetLineHeight( current ) );
4370
4371 // Report position relative to the cell's custom area, i.e.
4372 // not the entire space as given by the control but the one
4373 // used by the renderer after calculation of alignment etc.
4374 //
4375 // Notice that this results in negative coordinates when clicking
4376 // in the upper left corner of a centre-aligned cell which doesn't
4377 // fill its column entirely so this is somewhat surprising, but we
4378 // do it like this for compatibility with the native GTK+ version,
4379 // see #12270.
4380
4381 // adjust the rectangle ourselves to account for the alignment
4382 int align = cell->GetAlignment();
4383 if ( align == wxDVR_DEFAULT_ALIGNMENT )
4384 align = wxALIGN_CENTRE;
4385
4386 wxRect rectItem = cell_rect;
4387 const wxSize size = cell->GetSize();
4388 if ( size.x >= 0 && size.x < cell_rect.width )
4389 {
4390 if ( align & wxALIGN_CENTER_HORIZONTAL )
4391 rectItem.x += (cell_rect.width - size.x)/2;
4392 else if ( align & wxALIGN_RIGHT )
4393 rectItem.x += cell_rect.width - size.x;
4394 // else: wxALIGN_LEFT is the default
4395 }
4396
4397 if ( size.y >= 0 && size.y < cell_rect.height )
4398 {
4399 if ( align & wxALIGN_CENTER_VERTICAL )
4400 rectItem.y += (cell_rect.height - size.y)/2;
4401 else if ( align & wxALIGN_BOTTOM )
4402 rectItem.y += cell_rect.height - size.y;
4403 // else: wxALIGN_TOP is the default
4404 }
4405
4406 wxMouseEvent event2(event);
4407 event2.m_x -= rectItem.x;
4408 event2.m_y -= rectItem.y;
4409 m_owner->CalcUnscrolledPosition(event2.m_x, event2.m_y, &event2.m_x, &event2.m_y);
4410
4411 /* ignore ret */ cell->WXActivateCell
4412 (
4413 cell_rect,
4414 model,
4415 item,
4416 col->GetModelColumn(),
4417 &event2
4418 );
4419 }
4420 }
4421 }
4422
4423 void wxDataViewMainWindow::OnSetFocus( wxFocusEvent &event )
4424 {
4425 m_hasFocus = true;
4426
4427 if (HasCurrentRow())
4428 Refresh();
4429
4430 event.Skip();
4431 }
4432
4433 void wxDataViewMainWindow::OnKillFocus( wxFocusEvent &event )
4434 {
4435 m_hasFocus = false;
4436
4437 if (HasCurrentRow())
4438 Refresh();
4439
4440 event.Skip();
4441 }
4442
4443 void wxDataViewMainWindow::OnColumnsCountChanged()
4444 {
4445 int editableCount = 0;
4446
4447 const unsigned cols = GetOwner()->GetColumnCount();
4448 for ( unsigned i = 0; i < cols; i++ )
4449 {
4450 wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
4451 if ( c->IsHidden() )
4452 continue;
4453 if ( c->GetRenderer()->GetMode() != wxDATAVIEW_CELL_INERT )
4454 editableCount++;
4455 }
4456
4457 m_useCellFocus = (editableCount > 1);
4458
4459 UpdateDisplay();
4460 }
4461
4462 //-----------------------------------------------------------------------------
4463 // wxDataViewCtrl
4464 //-----------------------------------------------------------------------------
4465
4466 WX_DEFINE_LIST(wxDataViewColumnList)
4467
4468 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
4469 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
4470 EVT_SIZE(wxDataViewCtrl::OnSize)
4471 END_EVENT_TABLE()
4472
4473 wxDataViewCtrl::~wxDataViewCtrl()
4474 {
4475 if (m_notifier)
4476 GetModel()->RemoveNotifier( m_notifier );
4477
4478 m_cols.Clear();
4479 m_colsBestWidths.clear();
4480 }
4481
4482 void wxDataViewCtrl::Init()
4483 {
4484 m_cols.DeleteContents(true);
4485 m_notifier = NULL;
4486
4487 // No sorting column at start
4488 m_sortingColumnIdx = wxNOT_FOUND;
4489
4490 m_headerArea = NULL;
4491 m_clientArea = NULL;
4492
4493 m_colsDirty = false;
4494 }
4495
4496 bool wxDataViewCtrl::Create(wxWindow *parent,
4497 wxWindowID id,
4498 const wxPoint& pos,
4499 const wxSize& size,
4500 long style,
4501 const wxValidator& validator,
4502 const wxString& name)
4503 {
4504 // if ( (style & wxBORDER_MASK) == 0)
4505 // style |= wxBORDER_SUNKEN;
4506
4507 Init();
4508
4509 if (!wxControl::Create( parent, id, pos, size,
4510 style | wxScrolledWindowStyle, validator, name))
4511 return false;
4512
4513 SetInitialSize(size);
4514
4515 #ifdef __WXMAC__
4516 MacSetClipChildren( true );
4517 #endif
4518
4519 m_clientArea = new wxDataViewMainWindow( this, wxID_ANY );
4520
4521 // We use the cursor keys for moving the selection, not scrolling, so call
4522 // this method to ensure wxScrollHelperEvtHandler doesn't catch all
4523 // keyboard events forwarded to us from wxListMainWindow.
4524 DisableKeyboardScrolling();
4525
4526 if (HasFlag(wxDV_NO_HEADER))
4527 m_headerArea = NULL;
4528 else
4529 m_headerArea = new wxDataViewHeaderWindow(this);
4530
4531 SetTargetWindow( m_clientArea );
4532
4533 wxBoxSizer *sizer = new wxBoxSizer( wxVERTICAL );
4534 if (m_headerArea)
4535 sizer->Add( m_headerArea, 0, wxGROW );
4536 sizer->Add( m_clientArea, 1, wxGROW );
4537 SetSizer( sizer );
4538
4539 return true;
4540 }
4541
4542 wxBorder wxDataViewCtrl::GetDefaultBorder() const
4543 {
4544 return wxBORDER_THEME;
4545 }
4546
4547 #ifdef __WXMSW__
4548 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
4549 WXWPARAM wParam,
4550 WXLPARAM lParam)
4551 {
4552 WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
4553
4554 #ifndef __WXWINCE__
4555 // we need to process arrows ourselves for scrolling
4556 if ( nMsg == WM_GETDLGCODE )
4557 {
4558 rc |= DLGC_WANTARROWS;
4559 }
4560 #endif
4561
4562 return rc;
4563 }
4564 #endif
4565
4566 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
4567 {
4568 wxSize newsize = size;
4569 if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
4570 newsize.y -= m_headerArea->GetSize().y;
4571
4572 return newsize;
4573 }
4574
4575 void wxDataViewCtrl::OnSize( wxSizeEvent &WXUNUSED(event) )
4576 {
4577 // We need to override OnSize so that our scrolled
4578 // window a) does call Layout() to use sizers for
4579 // positioning the controls but b) does not query
4580 // the sizer for their size and use that for setting
4581 // the scrollable area as set that ourselves by
4582 // calling SetScrollbar() further down.
4583
4584 Layout();
4585
4586 AdjustScrollbars();
4587
4588 // We must redraw the headers if their height changed. Normally this
4589 // shouldn't happen as the control shouldn't let itself be resized beneath
4590 // its minimal height but avoid the display artefacts that appear if it
4591 // does happen, e.g. because there is really not enough vertical space.
4592 if ( !HasFlag(wxDV_NO_HEADER) && m_headerArea &&
4593 m_headerArea->GetSize().y <= m_headerArea->GetBestSize(). y )
4594 {
4595 m_headerArea->Refresh();
4596 }
4597 }
4598
4599 void wxDataViewCtrl::SetFocus()
4600 {
4601 if (m_clientArea)
4602 m_clientArea->SetFocus();
4603 }
4604
4605 bool wxDataViewCtrl::SetFont(const wxFont & font)
4606 {
4607 if (!wxControl::SetFont(font))
4608 return false;
4609
4610 if (m_headerArea)
4611 m_headerArea->SetFont(font);
4612
4613 if (m_clientArea)
4614 {
4615 m_clientArea->SetFont(font);
4616 m_clientArea->SetRowHeight(m_clientArea->GetDefaultRowHeight());
4617 }
4618
4619 if (m_headerArea || m_clientArea)
4620 {
4621 InvalidateColBestWidths();
4622 Layout();
4623 }
4624
4625 return true;
4626 }
4627
4628
4629
4630 bool wxDataViewCtrl::AssociateModel( wxDataViewModel *model )
4631 {
4632 if (!wxDataViewCtrlBase::AssociateModel( model ))
4633 return false;
4634
4635 if (model)
4636 {
4637 m_notifier = new wxGenericDataViewModelNotifier( m_clientArea );
4638 model->AddNotifier( m_notifier );
4639 }
4640 else if (m_notifier)
4641 {
4642 m_notifier->Cleared();
4643 m_notifier = NULL;
4644 }
4645
4646 m_clientArea->DestroyTree();
4647
4648 if (model)
4649 {
4650 m_clientArea->BuildTree(model);
4651 }
4652
4653 m_clientArea->UpdateDisplay();
4654
4655 return true;
4656 }
4657
4658 #if wxUSE_DRAG_AND_DROP
4659
4660 bool wxDataViewCtrl::EnableDragSource( const wxDataFormat &format )
4661 {
4662 return m_clientArea->EnableDragSource( format );
4663 }
4664
4665 bool wxDataViewCtrl::EnableDropTarget( const wxDataFormat &format )
4666 {
4667 return m_clientArea->EnableDropTarget( format );
4668 }
4669
4670 #endif // wxUSE_DRAG_AND_DROP
4671
4672 bool wxDataViewCtrl::AppendColumn( wxDataViewColumn *col )
4673 {
4674 if (!wxDataViewCtrlBase::AppendColumn(col))
4675 return false;
4676
4677 m_cols.Append( col );
4678 m_colsBestWidths.push_back(CachedColWidthInfo());
4679 OnColumnsCountChanged();
4680 return true;
4681 }
4682
4683 bool wxDataViewCtrl::PrependColumn( wxDataViewColumn *col )
4684 {
4685 if (!wxDataViewCtrlBase::PrependColumn(col))
4686 return false;
4687
4688 m_cols.Insert( col );
4689 m_colsBestWidths.insert(m_colsBestWidths.begin(), CachedColWidthInfo());
4690 OnColumnsCountChanged();
4691 return true;
4692 }
4693
4694 bool wxDataViewCtrl::InsertColumn( unsigned int pos, wxDataViewColumn *col )
4695 {
4696 if (!wxDataViewCtrlBase::InsertColumn(pos,col))
4697 return false;
4698
4699 m_cols.Insert( pos, col );
4700 m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, CachedColWidthInfo());
4701 OnColumnsCountChanged();
4702 return true;
4703 }
4704
4705 void wxDataViewCtrl::OnColumnChange(unsigned int idx)
4706 {
4707 if ( m_headerArea )
4708 m_headerArea->UpdateColumn(idx);
4709
4710 m_clientArea->UpdateDisplay();
4711 }
4712
4713 void wxDataViewCtrl::OnColumnsCountChanged()
4714 {
4715 if (m_headerArea)
4716 m_headerArea->SetColumnCount(GetColumnCount());
4717
4718 m_clientArea->OnColumnsCountChanged();
4719 }
4720
4721 void wxDataViewCtrl::DoSetExpanderColumn()
4722 {
4723 wxDataViewColumn* column = GetExpanderColumn();
4724 if ( column )
4725 {
4726 int index = GetColumnIndex(column);
4727 if ( index != wxNOT_FOUND )
4728 InvalidateColBestWidth(index);
4729 }
4730
4731 m_clientArea->UpdateDisplay();
4732 }
4733
4734 void wxDataViewCtrl::DoSetIndent()
4735 {
4736 m_clientArea->UpdateDisplay();
4737 }
4738
4739 unsigned int wxDataViewCtrl::GetColumnCount() const
4740 {
4741 return m_cols.GetCount();
4742 }
4743
4744 bool wxDataViewCtrl::SetRowHeight( int lineHeight )
4745 {
4746 if ( !m_clientArea )
4747 return false;
4748
4749 m_clientArea->SetRowHeight(lineHeight);
4750
4751 return true;
4752 }
4753
4754 wxDataViewColumn* wxDataViewCtrl::GetColumn( unsigned int idx ) const
4755 {
4756 return m_cols[idx];
4757 }
4758
4759 wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
4760 {
4761 // columns can't be reordered if there is no header window which allows
4762 // to do this
4763 const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
4764 : pos;
4765
4766 return GetColumn(idx);
4767 }
4768
4769 int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
4770 {
4771 const unsigned count = m_cols.size();
4772 for ( unsigned n = 0; n < count; n++ )
4773 {
4774 if ( m_cols[n] == column )
4775 return n;
4776 }
4777
4778 return wxNOT_FOUND;
4779 }
4780
4781 int wxDataViewCtrl::GetModelColumnIndex( unsigned int model_column ) const
4782 {
4783 const int count = GetColumnCount();
4784 for ( int index = 0; index < count; index++ )
4785 {
4786 wxDataViewColumn* column = GetColumn(index);
4787 if ( column->GetModelColumn() == model_column )
4788 return index;
4789 }
4790 return wxNOT_FOUND;
4791 }
4792
4793 unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
4794 {
4795 if ( m_colsBestWidths[idx].width != 0 )
4796 return m_colsBestWidths[idx].width;
4797
4798 const int count = m_clientArea->GetRowCount();
4799 wxDataViewColumn *column = GetColumn(idx);
4800 wxDataViewRenderer *renderer =
4801 const_cast<wxDataViewRenderer*>(column->GetRenderer());
4802
4803 class MaxWidthCalculator
4804 {
4805 public:
4806 MaxWidthCalculator(const wxDataViewCtrl *dvc,
4807 wxDataViewMainWindow *clientArea,
4808 wxDataViewRenderer *renderer,
4809 const wxDataViewModel *model,
4810 unsigned int model_column,
4811 int expanderSize)
4812 : m_width(0),
4813 m_dvc(dvc),
4814 m_clientArea(clientArea),
4815 m_renderer(renderer),
4816 m_model(model),
4817 m_model_column(model_column),
4818 m_expanderSize(expanderSize)
4819
4820 {
4821 int index = dvc->GetModelColumnIndex( model_column );
4822 wxDataViewColumn* column = index == wxNOT_FOUND ? NULL : dvc->GetColumn(index);
4823 m_isExpanderCol =
4824 !clientArea->IsList() &&
4825 (column == 0 ||
4826 GetExpanderColumnOrFirstOne(const_cast<wxDataViewCtrl*>(dvc)) == column );
4827 }
4828
4829 void UpdateWithWidth(int width)
4830 {
4831 m_width = wxMax(m_width, width);
4832 }
4833
4834 void UpdateWithRow(int row)
4835 {
4836 int indent = 0;
4837 wxDataViewItem item;
4838
4839 if ( m_isExpanderCol )
4840 {
4841 wxDataViewTreeNode *node = m_clientArea->GetTreeNodeByRow(row);
4842 item = node->GetItem();
4843 indent = m_dvc->GetIndent() * node->GetIndentLevel() + m_expanderSize;
4844 }
4845 else
4846 {
4847 item = m_clientArea->GetItemByRow(row);
4848 }
4849
4850 m_renderer->PrepareForItem(m_model, item, m_model_column);
4851 m_width = wxMax(m_width, m_renderer->GetSize().x + indent);
4852 }
4853
4854 int GetMaxWidth() const { return m_width; }
4855
4856 private:
4857 int m_width;
4858 const wxDataViewCtrl *m_dvc;
4859 wxDataViewMainWindow *m_clientArea;
4860 wxDataViewRenderer *m_renderer;
4861 const wxDataViewModel *m_model;
4862 unsigned m_model_column;
4863 bool m_isExpanderCol;
4864 int m_expanderSize;
4865 };
4866
4867 MaxWidthCalculator calculator(this, m_clientArea, renderer,
4868 GetModel(), column->GetModelColumn(),
4869 m_clientArea->GetRowHeight());
4870
4871 calculator.UpdateWithWidth(column->GetMinWidth());
4872
4873 if ( m_headerArea )
4874 calculator.UpdateWithWidth(m_headerArea->GetColumnTitleWidth(*column));
4875
4876 // The code below deserves some explanation. For very large controls, we
4877 // simply can't afford to calculate sizes for all items, it takes too
4878 // long. So the best we can do is to check the first and the last N/2
4879 // items in the control for some sufficiently large N and calculate best
4880 // sizes from that. That can result in the calculated best width being too
4881 // small for some outliers, but it's better to get slightly imperfect
4882 // result than to wait several seconds after every update. To avoid highly
4883 // visible miscalculations, we also include all currently visible items
4884 // no matter what. Finally, the value of N is determined dynamically by
4885 // measuring how much time we spent on the determining item widths so far.
4886
4887 #if wxUSE_STOPWATCH
4888 int top_part_end = count;
4889 static const long CALC_TIMEOUT = 20/*ms*/;
4890 // don't call wxStopWatch::Time() too often
4891 static const unsigned CALC_CHECK_FREQ = 100;
4892 wxStopWatch timer;
4893 #else
4894 // use some hard-coded limit, that's the best we can do without timer
4895 int top_part_end = wxMin(500, count);
4896 #endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
4897
4898 int row = 0;
4899
4900 for ( row = 0; row < top_part_end; row++ )
4901 {
4902 #if wxUSE_STOPWATCH
4903 if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
4904 timer.Time() > CALC_TIMEOUT )
4905 break;
4906 #endif // wxUSE_STOPWATCH
4907 calculator.UpdateWithRow(row);
4908 }
4909
4910 // row is the first unmeasured item now; that's our value of N/2
4911
4912 if ( row < count )
4913 {
4914 top_part_end = row;
4915
4916 // add bottom N/2 items now:
4917 const int bottom_part_start = wxMax(row, count - row);
4918 for ( row = bottom_part_start; row < count; row++ )
4919 {
4920 calculator.UpdateWithRow(row);
4921 }
4922
4923 // finally, include currently visible items in the calculation:
4924 const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
4925 int first_visible = m_clientArea->GetLineAt(origin.y);
4926 int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
4927
4928 first_visible = wxMax(first_visible, top_part_end);
4929 last_visible = wxMin(bottom_part_start, last_visible);
4930
4931 for ( row = first_visible; row < last_visible; row++ )
4932 {
4933 calculator.UpdateWithRow(row);
4934 }
4935
4936 wxLogTrace("dataview",
4937 "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
4938 top_part_end,
4939 count - bottom_part_start,
4940 wxMax(0, last_visible - first_visible),
4941 count);
4942 }
4943
4944 int max_width = calculator.GetMaxWidth();
4945 if ( max_width > 0 )
4946 max_width += 2 * PADDING_RIGHTLEFT;
4947
4948 const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx].width = max_width;
4949 return max_width;
4950 }
4951
4952 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
4953 unsigned int WXUNUSED(new_pos))
4954 {
4955 // do _not_ reorder m_cols elements here, they should always be in the
4956 // order in which columns were added, we only display the columns in
4957 // different order
4958 m_clientArea->UpdateDisplay();
4959 }
4960
4961 bool wxDataViewCtrl::DeleteColumn( wxDataViewColumn *column )
4962 {
4963 wxDataViewColumnList::compatibility_iterator ret = m_cols.Find( column );
4964 if (!ret)
4965 return false;
4966
4967 m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
4968 m_cols.Erase(ret);
4969
4970 if ( m_clientArea->GetCurrentColumn() == column )
4971 m_clientArea->ClearCurrentColumn();
4972
4973 OnColumnsCountChanged();
4974
4975 return true;
4976 }
4977
4978 bool wxDataViewCtrl::ClearColumns()
4979 {
4980 SetExpanderColumn(NULL);
4981 m_cols.Clear();
4982 m_colsBestWidths.clear();
4983
4984 m_clientArea->ClearCurrentColumn();
4985
4986 OnColumnsCountChanged();
4987
4988 return true;
4989 }
4990
4991 void wxDataViewCtrl::InvalidateColBestWidth(int idx)
4992 {
4993 m_colsBestWidths[idx].width = 0;
4994 m_colsBestWidths[idx].dirty = true;
4995 m_colsDirty = true;
4996 }
4997
4998 void wxDataViewCtrl::InvalidateColBestWidths()
4999 {
5000 // mark all columns as dirty:
5001 m_colsBestWidths.clear();
5002 m_colsBestWidths.resize(m_cols.size());
5003 m_colsDirty = true;
5004 }
5005
5006 void wxDataViewCtrl::UpdateColWidths()
5007 {
5008 m_colsDirty = false;
5009
5010 if ( !m_headerArea )
5011 return;
5012
5013 const unsigned len = m_colsBestWidths.size();
5014 for ( unsigned i = 0; i < len; i++ )
5015 {
5016 // Note that we have to have an explicit 'dirty' flag here instead of
5017 // checking if the width==0, as is done in GetBestColumnWidth().
5018 //
5019 // Testing width==0 wouldn't work correctly if some code called
5020 // GetWidth() after col. width invalidation but before
5021 // wxDataViewCtrl::UpdateColWidths() was called at idle time. This
5022 // would result in the header's column width getting out of sync with
5023 // the control itself.
5024 if ( m_colsBestWidths[i].dirty )
5025 {
5026 m_headerArea->UpdateColumn(i);
5027 m_colsBestWidths[i].dirty = false;
5028 }
5029 }
5030 }
5031
5032 void wxDataViewCtrl::OnInternalIdle()
5033 {
5034 wxDataViewCtrlBase::OnInternalIdle();
5035
5036 if ( m_colsDirty )
5037 UpdateColWidths();
5038 }
5039
5040 int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
5041 {
5042 unsigned int len = GetColumnCount();
5043 for ( unsigned int i = 0; i < len; i++ )
5044 {
5045 wxDataViewColumn * col = GetColumnAt(i);
5046 if (column==col)
5047 return i;
5048 }
5049
5050 return wxNOT_FOUND;
5051 }
5052
5053 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
5054 {
5055 return m_sortingColumnIdx == wxNOT_FOUND ? NULL
5056 : GetColumn(m_sortingColumnIdx);
5057 }
5058
5059 wxDataViewItem wxDataViewCtrl::DoGetCurrentItem() const
5060 {
5061 return GetItemByRow(m_clientArea->GetCurrentRow());
5062 }
5063
5064 void wxDataViewCtrl::DoSetCurrentItem(const wxDataViewItem& item)
5065 {
5066 const int row = m_clientArea->GetRowByItem(item);
5067
5068 const unsigned oldCurrent = m_clientArea->GetCurrentRow();
5069 if ( static_cast<unsigned>(row) != oldCurrent )
5070 {
5071 m_clientArea->ChangeCurrentRow(row);
5072 m_clientArea->RefreshRow(oldCurrent);
5073 m_clientArea->RefreshRow(row);
5074 }
5075 }
5076
5077 wxDataViewColumn *wxDataViewCtrl::GetCurrentColumn() const
5078 {
5079 return m_clientArea->GetCurrentColumn();
5080 }
5081
5082 int wxDataViewCtrl::GetSelectedItemsCount() const
5083 {
5084 return m_clientArea->GetSelections().size();
5085 }
5086
5087 int wxDataViewCtrl::GetSelections( wxDataViewItemArray & sel ) const
5088 {
5089 sel.Empty();
5090 const wxDataViewSelection& selections = m_clientArea->GetSelections();
5091
5092 const size_t len = selections.size();
5093 for ( size_t i = 0; i < len; i++ )
5094 {
5095 wxDataViewItem item = m_clientArea->GetItemByRow(selections[i]);
5096 if ( item.IsOk() )
5097 {
5098 sel.Add(item);
5099 }
5100 else
5101 {
5102 wxFAIL_MSG( "invalid item in selection - bad internal state" );
5103 }
5104 }
5105
5106 return sel.size();
5107 }
5108
5109 void wxDataViewCtrl::SetSelections( const wxDataViewItemArray & sel )
5110 {
5111 wxDataViewSelection selection(wxDataViewSelectionCmp);
5112
5113 wxDataViewItem last_parent;
5114
5115 int len = sel.GetCount();
5116 for( int i = 0; i < len; i ++ )
5117 {
5118 wxDataViewItem item = sel[i];
5119 wxDataViewItem parent = GetModel()->GetParent( item );
5120 if (parent)
5121 {
5122 if (parent != last_parent)
5123 ExpandAncestors(item);
5124 }
5125
5126 last_parent = parent;
5127 int row = m_clientArea->GetRowByItem( item );
5128 if( row >= 0 )
5129 selection.Add( static_cast<unsigned int>(row) );
5130 }
5131
5132 m_clientArea->SetSelections( selection );
5133 }
5134
5135 void wxDataViewCtrl::Select( const wxDataViewItem & item )
5136 {
5137 ExpandAncestors( item );
5138
5139 int row = m_clientArea->GetRowByItem( item );
5140 if( row >= 0 )
5141 {
5142 // Unselect all rows before select another in the single select mode
5143 if (m_clientArea->IsSingleSel())
5144 m_clientArea->SelectAllRows(false);
5145
5146 m_clientArea->SelectRow(row, true);
5147
5148 // Also set focus to the selected item
5149 m_clientArea->ChangeCurrentRow( row );
5150 }
5151 }
5152
5153 void wxDataViewCtrl::Unselect( const wxDataViewItem & item )
5154 {
5155 int row = m_clientArea->GetRowByItem( item );
5156 if( row >= 0 )
5157 m_clientArea->SelectRow(row, false);
5158 }
5159
5160 bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
5161 {
5162 int row = m_clientArea->GetRowByItem( item );
5163 if( row >= 0 )
5164 {
5165 return m_clientArea->IsRowSelected(row);
5166 }
5167 return false;
5168 }
5169
5170 void wxDataViewCtrl::SetAlternateRowColour(const wxColour& colour)
5171 {
5172 m_alternateRowColour = colour;
5173 }
5174
5175 void wxDataViewCtrl::SelectAll()
5176 {
5177 m_clientArea->SelectAllRows(true);
5178 }
5179
5180 void wxDataViewCtrl::UnselectAll()
5181 {
5182 m_clientArea->SelectAllRows(false);
5183 }
5184
5185 void wxDataViewCtrl::EnsureVisible( int row, int column )
5186 {
5187 if( row < 0 )
5188 row = 0;
5189 if( row > (int) m_clientArea->GetRowCount() )
5190 row = m_clientArea->GetRowCount();
5191
5192 int first = m_clientArea->GetFirstVisibleRow();
5193 int last = m_clientArea->GetLastVisibleRow();
5194 if( row < first )
5195 m_clientArea->ScrollTo( row, column );
5196 else if( row > last )
5197 m_clientArea->ScrollTo( row - last + first, column );
5198 else
5199 m_clientArea->ScrollTo( first, column );
5200 }
5201
5202 void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataViewColumn * column )
5203 {
5204 ExpandAncestors( item );
5205
5206 m_clientArea->RecalculateDisplay();
5207
5208 int row = m_clientArea->GetRowByItem(item);
5209 if( row >= 0 )
5210 {
5211 if( column == NULL )
5212 EnsureVisible(row, -1);
5213 else
5214 EnsureVisible( row, GetColumnIndex(column) );
5215 }
5216
5217 }
5218
5219 void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
5220 wxDataViewColumn* &column ) const
5221 {
5222 m_clientArea->HitTest(point, item, column);
5223 }
5224
5225 wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
5226 const wxDataViewColumn* column ) const
5227 {
5228 return m_clientArea->GetItemRect(item, column);
5229 }
5230
5231 wxDataViewItem wxDataViewCtrl::GetItemByRow( unsigned int row ) const
5232 {
5233 return m_clientArea->GetItemByRow( row );
5234 }
5235
5236 int wxDataViewCtrl::GetRowByItem( const wxDataViewItem & item ) const
5237 {
5238 return m_clientArea->GetRowByItem( item );
5239 }
5240
5241 void wxDataViewCtrl::Expand( const wxDataViewItem & item )
5242 {
5243 ExpandAncestors( item );
5244
5245 int row = m_clientArea->GetRowByItem( item );
5246 if (row != -1)
5247 {
5248 m_clientArea->Expand(row);
5249 InvalidateColBestWidths();
5250 }
5251 }
5252
5253 void wxDataViewCtrl::Collapse( const wxDataViewItem & item )
5254 {
5255 int row = m_clientArea->GetRowByItem( item );
5256 if (row != -1)
5257 {
5258 m_clientArea->Collapse(row);
5259 InvalidateColBestWidths();
5260 }
5261 }
5262
5263 bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
5264 {
5265 int row = m_clientArea->GetRowByItem( item );
5266 if (row != -1)
5267 return m_clientArea->IsExpanded(row);
5268 return false;
5269 }
5270
5271 void wxDataViewCtrl::EditItem(const wxDataViewItem& item, const wxDataViewColumn *column)
5272 {
5273 wxCHECK_RET( item.IsOk(), "invalid item" );
5274 wxCHECK_RET( column, "no column provided" );
5275
5276 m_clientArea->StartEditing(item, column);
5277 }
5278
5279 #endif // !wxUSE_GENERICDATAVIEWCTRL
5280
5281 #endif // wxUSE_DATAVIEWCTRL
wxWidgets (Impactor)