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1/////////////////////////////////////////////////////////////////////////////
2// Name: treectlg.cpp
3// Purpose: generic tree control implementation
4// Author: Robert Roebling
5// Created: 01/02/97
6// Modified: 22/10/98 - almost total rewrite, simpler interface (VZ)
7// Id: $Id$
8// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// =============================================================================
13// declarations
14// =============================================================================
15
16// -----------------------------------------------------------------------------
17// headers
18// -----------------------------------------------------------------------------
19
20#ifdef __GNUG__
21 #pragma implementation "treectlg.h"
22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
28 #pragma hdrstop
29#endif
30
31#if wxUSE_TREECTRL
32
33#include "wx/treebase.h"
34#include "wx/generic/treectlg.h"
35#include "wx/timer.h"
36#include "wx/textctrl.h"
37#include "wx/imaglist.h"
38#include "wx/settings.h"
39#include "wx/dcclient.h"
40
41// -----------------------------------------------------------------------------
42// array types
43// -----------------------------------------------------------------------------
44
45class WXDLLEXPORT wxGenericTreeItem;
46
47WX_DEFINE_EXPORTED_ARRAY(wxGenericTreeItem *, wxArrayGenericTreeItems);
48//WX_DEFINE_OBJARRAY(wxArrayTreeItemIds);
49
50// ----------------------------------------------------------------------------
51// constants
52// ----------------------------------------------------------------------------
53
54static const int NO_IMAGE = -1;
55
56#define PIXELS_PER_UNIT 10
57
58// -----------------------------------------------------------------------------
59// private classes
60// -----------------------------------------------------------------------------
61
62// timer used for enabling in-place edit
63class WXDLLEXPORT wxTreeRenameTimer: public wxTimer
64{
65public:
66 wxTreeRenameTimer( wxGenericTreeCtrl *owner );
67
68 void Notify();
69
70private:
71 wxGenericTreeCtrl *m_owner;
72};
73
74// control used for in-place edit
75class WXDLLEXPORT wxTreeTextCtrl: public wxTextCtrl
76{
77public:
78 wxTreeTextCtrl( wxWindow *parent,
79 const wxWindowID id,
80 bool *accept,
81 wxString *res,
82 wxGenericTreeCtrl *owner,
83 const wxString &value = wxEmptyString,
84 const wxPoint &pos = wxDefaultPosition,
85 const wxSize &size = wxDefaultSize,
86 int style = wxSIMPLE_BORDER,
87 const wxValidator& validator = wxDefaultValidator,
88 const wxString &name = wxTextCtrlNameStr );
89
90 void OnChar( wxKeyEvent &event );
91 void OnKeyUp( wxKeyEvent &event );
92 void OnKillFocus( wxFocusEvent &event );
93
94private:
95 bool *m_accept;
96 wxString *m_res;
97 wxGenericTreeCtrl *m_owner;
98 wxString m_startValue;
99
100 DECLARE_EVENT_TABLE()
101};
102
103// a tree item
104class WXDLLEXPORT wxGenericTreeItem
105{
106public:
107 // ctors & dtor
108 wxGenericTreeItem() { m_data = NULL; }
109 wxGenericTreeItem( wxGenericTreeItem *parent,
110 const wxString& text,
111 wxDC& dc,
112 int image,
113 int selImage,
114 wxTreeItemData *data );
115
116 ~wxGenericTreeItem();
117
118 // trivial accessors
119 wxArrayGenericTreeItems& GetChildren() { return m_children; }
120
121 const wxString& GetText() const { return m_text; }
122 int GetImage(wxTreeItemIcon which = wxTreeItemIcon_Normal) const
123 { return m_images[which]; }
124 wxTreeItemData *GetData() const { return m_data; }
125
126 // returns the current image for the item (depending on its
127 // selected/expanded/whatever state)
128 int GetCurrentImage() const;
129
130 void SetText( const wxString &text );
131 void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
132 void SetData(wxTreeItemData *data) { m_data = data; }
133
134 void SetHasPlus(bool has = TRUE) { m_hasPlus = has; }
135
136 void SetBold(bool bold) { m_isBold = bold; }
137
138 int GetX() const { return m_x; }
139 int GetY() const { return m_y; }
140
141 void SetX(int x) { m_x = x; }
142 void SetY(int y) { m_y = y; }
143
144 int GetHeight() const { return m_height; }
145 int GetWidth() const { return m_width; }
146
147 void SetHeight(int h) { m_height = h; }
148 void SetWidth(int w) { m_width = w; }
149
150 wxGenericTreeItem *GetParent() const { return m_parent; }
151
152 // operations
153 // deletes all children notifying the treectrl about it if !NULL
154 // pointer given
155 void DeleteChildren(wxGenericTreeCtrl *tree = NULL);
156
157 // get count of all children (and grand children if 'recursively')
158 size_t GetChildrenCount(bool recursively = TRUE) const;
159
160 void Insert(wxGenericTreeItem *child, size_t index)
161 { m_children.Insert(child, index); }
162
163 void GetSize( int &x, int &y, const wxGenericTreeCtrl* );
164
165 // return the item at given position (or NULL if no item), onButton is
166 // TRUE if the point belongs to the item's button, otherwise it lies
167 // on the button's label
168 wxGenericTreeItem *HitTest( const wxPoint& point,
169 const wxGenericTreeCtrl *,
170 int &flags,
171 int level );
172
173 void Expand() { m_isCollapsed = FALSE; }
174 void Collapse() { m_isCollapsed = TRUE; }
175
176 void SetHilight( bool set = TRUE ) { m_hasHilight = set; }
177
178 // status inquiries
179 bool HasChildren() const { return !m_children.IsEmpty(); }
180 bool IsSelected() const { return m_hasHilight != 0; }
181 bool IsExpanded() const { return !m_isCollapsed; }
182 bool HasPlus() const { return m_hasPlus || HasChildren(); }
183 bool IsBold() const { return m_isBold != 0; }
184
185 // attributes
186 // get them - may be NULL
187 wxTreeItemAttr *GetAttributes() const { return m_attr; }
188 // get them ensuring that the pointer is not NULL
189 wxTreeItemAttr& Attr()
190 {
191 if ( !m_attr )
192 {
193 m_attr = new wxTreeItemAttr;
194 m_ownsAttr = TRUE;
195 }
196 return *m_attr;
197 }
198 // set them
199 void SetAttributes(wxTreeItemAttr *attr)
200 {
201 if ( m_ownsAttr ) delete m_attr;
202 m_attr = attr;
203 m_ownsAttr = FALSE;
204 }
205 // set them and delete when done
206 void AssignAttributes(wxTreeItemAttr *attr)
207 {
208 SetAttributes(attr);
209 m_ownsAttr = TRUE;
210 }
211
212private:
213 // since there can be very many of these, we save size by chosing
214 // the smallest representation for the elements and by ordering
215 // the members to avoid padding.
216 wxString m_text; // label to be rendered for item
217
218 wxTreeItemData *m_data; // user-provided data
219
220 wxArrayGenericTreeItems m_children; // list of children
221 wxGenericTreeItem *m_parent; // parent of this item
222
223 wxTreeItemAttr *m_attr; // attributes???
224
225 // tree ctrl images for the normal, selected, expanded and
226 // expanded+selected states
227 short m_images[wxTreeItemIcon_Max];
228
229 wxCoord m_x; // (virtual) offset from top
230 short m_y; // (virtual) offset from left
231 short m_width; // width of this item
232 unsigned char m_height; // height of this item
233
234 // use bitfields to save size
235 int m_isCollapsed :1;
236 int m_hasHilight :1; // same as focused
237 int m_hasPlus :1; // used for item which doesn't have
238 // children but has a [+] button
239 int m_isBold :1; // render the label in bold font
240 int m_ownsAttr :1; // delete attribute when done
241};
242
243// =============================================================================
244// implementation
245// =============================================================================
246
247// ----------------------------------------------------------------------------
248// private functions
249// ----------------------------------------------------------------------------
250
251// translate the key or mouse event flags to the type of selection we're
252// dealing with
253static void EventFlagsToSelType(long style,
254 bool shiftDown,
255 bool ctrlDown,
256 bool &is_multiple,
257 bool &extended_select,
258 bool &unselect_others)
259{
260 is_multiple = (style & wxTR_MULTIPLE) != 0;
261 extended_select = shiftDown && is_multiple;
262 unselect_others = !(extended_select || (ctrlDown && is_multiple));
263}
264
265// -----------------------------------------------------------------------------
266// wxTreeRenameTimer (internal)
267// -----------------------------------------------------------------------------
268
269wxTreeRenameTimer::wxTreeRenameTimer( wxGenericTreeCtrl *owner )
270{
271 m_owner = owner;
272}
273
274void wxTreeRenameTimer::Notify()
275{
276 m_owner->OnRenameTimer();
277}
278
279//-----------------------------------------------------------------------------
280// wxTreeTextCtrl (internal)
281//-----------------------------------------------------------------------------
282
283BEGIN_EVENT_TABLE(wxTreeTextCtrl,wxTextCtrl)
284 EVT_CHAR (wxTreeTextCtrl::OnChar)
285 EVT_KEY_UP (wxTreeTextCtrl::OnKeyUp)
286 EVT_KILL_FOCUS (wxTreeTextCtrl::OnKillFocus)
287END_EVENT_TABLE()
288
289wxTreeTextCtrl::wxTreeTextCtrl( wxWindow *parent,
290 const wxWindowID id,
291 bool *accept,
292 wxString *res,
293 wxGenericTreeCtrl *owner,
294 const wxString &value,
295 const wxPoint &pos,
296 const wxSize &size,
297 int style,
298 const wxValidator& validator,
299 const wxString &name )
300 : wxTextCtrl( parent, id, value, pos, size, style, validator, name )
301{
302 m_res = res;
303 m_accept = accept;
304 m_owner = owner;
305 (*m_accept) = FALSE;
306 (*m_res) = wxEmptyString;
307 m_startValue = value;
308}
309
310void wxTreeTextCtrl::OnChar( wxKeyEvent &event )
311{
312 // TODO focus doesn't return to the wxTextCtrl when this closes...
313 if (event.m_keyCode == WXK_RETURN)
314 {
315 (*m_accept) = TRUE;
316 (*m_res) = GetValue();
317
318 if ((*m_accept) && ((*m_res) != m_startValue))
319 m_owner->OnRenameAccept();
320
321 if (!wxPendingDelete.Member(this))
322 wxPendingDelete.Append(this);
323
324 return;
325 }
326 if (event.m_keyCode == WXK_ESCAPE)
327 {
328 (*m_accept) = FALSE;
329 (*m_res) = "";
330
331 if (!wxPendingDelete.Member(this))
332 wxPendingDelete.Append(this);
333
334 return;
335 }
336 event.Skip();
337}
338
339void wxTreeTextCtrl::OnKeyUp( wxKeyEvent &event )
340{
341 // auto-grow the textctrl:
342 wxSize parentSize = m_owner->GetSize();
343 wxPoint myPos = GetPosition();
344 wxSize mySize = GetSize();
345 int sx, sy;
346 GetTextExtent(GetValue() + _T("MM"), &sx, &sy);
347 if (myPos.x + sx > parentSize.x) sx = parentSize.x - myPos.x;
348 if (mySize.x > sx) sx = mySize.x;
349 SetSize(sx, -1);
350
351 event.Skip();
352}
353
354void wxTreeTextCtrl::OnKillFocus( wxFocusEvent &WXUNUSED(event) )
355{
356 if (!wxPendingDelete.Member(this))
357 wxPendingDelete.Append(this);
358
359 if ((*m_accept) && ((*m_res) != m_startValue))
360 m_owner->OnRenameAccept();
361}
362
363#if 0
364// -----------------------------------------------------------------------------
365// wxTreeEvent
366// -----------------------------------------------------------------------------
367
368IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxNotifyEvent)
369
370wxTreeEvent::wxTreeEvent( wxEventType commandType, int id )
371 : wxNotifyEvent( commandType, id )
372{
373 m_code = 0;
374 m_itemOld = (wxGenericTreeItem *)NULL;
375}
376#endif
377
378// -----------------------------------------------------------------------------
379// wxGenericTreeItem
380// -----------------------------------------------------------------------------
381
382wxGenericTreeItem::wxGenericTreeItem(wxGenericTreeItem *parent,
383 const wxString& text,
384 wxDC& WXUNUSED(dc),
385 int image, int selImage,
386 wxTreeItemData *data)
387 : m_text(text)
388{
389 m_images[wxTreeItemIcon_Normal] = image;
390 m_images[wxTreeItemIcon_Selected] = selImage;
391 m_images[wxTreeItemIcon_Expanded] = NO_IMAGE;
392 m_images[wxTreeItemIcon_SelectedExpanded] = NO_IMAGE;
393
394 m_data = data;
395 m_x = m_y = 0;
396
397 m_isCollapsed = TRUE;
398 m_hasHilight = FALSE;
399 m_hasPlus = FALSE;
400 m_isBold = FALSE;
401
402 m_parent = parent;
403
404 m_attr = (wxTreeItemAttr *)NULL;
405 m_ownsAttr = FALSE;
406
407 // We don't know the height here yet.
408 m_width = 0;
409 m_height = 0;
410}
411
412wxGenericTreeItem::~wxGenericTreeItem()
413{
414 delete m_data;
415
416 if (m_ownsAttr) delete m_attr;
417
418 wxASSERT_MSG( m_children.IsEmpty(),
419 wxT("please call DeleteChildren() before deleting the item") );
420}
421
422void wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl *tree)
423{
424 size_t count = m_children.Count();
425 for ( size_t n = 0; n < count; n++ )
426 {
427 wxGenericTreeItem *child = m_children[n];
428 if (tree)
429 tree->SendDeleteEvent(child);
430
431 child->DeleteChildren(tree);
432 delete child;
433 }
434
435 m_children.Empty();
436}
437
438void wxGenericTreeItem::SetText( const wxString &text )
439{
440 m_text = text;
441}
442
443size_t wxGenericTreeItem::GetChildrenCount(bool recursively) const
444{
445 size_t count = m_children.Count();
446 if ( !recursively )
447 return count;
448
449 size_t total = count;
450 for (size_t n = 0; n < count; ++n)
451 {
452 total += m_children[n]->GetChildrenCount();
453 }
454
455 return total;
456}
457
458void wxGenericTreeItem::GetSize( int &x, int &y,
459 const wxGenericTreeCtrl *theButton )
460{
461 int bottomY=m_y+theButton->GetLineHeight(this);
462 if ( y < bottomY ) y = bottomY;
463 int width = m_x + m_width;
464 if ( x < width ) x = width;
465
466 if (IsExpanded())
467 {
468 size_t count = m_children.Count();
469 for ( size_t n = 0; n < count; ++n )
470 {
471 m_children[n]->GetSize( x, y, theButton );
472 }
473 }
474}
475
476wxGenericTreeItem *wxGenericTreeItem::HitTest(const wxPoint& point,
477 const wxGenericTreeCtrl *theCtrl,
478 int &flags,
479 int level)
480{
481 // for a hidden root node, don't evaluate it, but do evaluate children
482 if ( !(level == 0 && theCtrl->HasFlag(wxTR_HIDE_ROOT)) )
483 {
484 // evaluate the item
485 int h = theCtrl->GetLineHeight(this);
486 if ((point.y > m_y) && (point.y < m_y + h))
487 {
488 int y_mid = m_y + h/2;
489 if (point.y < y_mid )
490 flags |= wxTREE_HITTEST_ONITEMUPPERPART;
491 else
492 flags |= wxTREE_HITTEST_ONITEMLOWERPART;
493
494 // 5 is the size of the plus sign
495 int xCross = m_x - theCtrl->GetSpacing();
496 if ((point.x > xCross-5) && (point.x < xCross+5) &&
497 (point.y > y_mid-5) && (point.y < y_mid+5) &&
498 HasPlus() && theCtrl->HasButtons() )
499 {
500 flags |= wxTREE_HITTEST_ONITEMBUTTON;
501 return this;
502 }
503
504 if ((point.x >= m_x) && (point.x <= m_x+m_width))
505 {
506 int image_w = -1;
507 int image_h;
508
509 // assuming every image (normal and selected) has the same size!
510 if ( (GetImage() != NO_IMAGE) && theCtrl->m_imageListNormal )
511 theCtrl->m_imageListNormal->GetSize(GetImage(),
512 image_w, image_h);
513
514 if ((image_w != -1) && (point.x <= m_x + image_w + 1))
515 flags |= wxTREE_HITTEST_ONITEMICON;
516 else
517 flags |= wxTREE_HITTEST_ONITEMLABEL;
518
519 return this;
520 }
521
522 if (point.x < m_x)
523 flags |= wxTREE_HITTEST_ONITEMINDENT;
524 if (point.x > m_x+m_width)
525 flags |= wxTREE_HITTEST_ONITEMRIGHT;
526
527 return this;
528 }
529
530 // if children are expanded, fall through to evaluate them
531 if (m_isCollapsed) return (wxGenericTreeItem*) NULL;
532 }
533
534 // evaluate children
535 size_t count = m_children.Count();
536 for ( size_t n = 0; n < count; n++ )
537 {
538 wxGenericTreeItem *res = m_children[n]->HitTest( point,
539 theCtrl,
540 flags,
541 level + 1 );
542 if ( res != NULL )
543 return res;
544 }
545
546 return (wxGenericTreeItem*) NULL;
547}
548
549int wxGenericTreeItem::GetCurrentImage() const
550{
551 int image = NO_IMAGE;
552 if ( IsExpanded() )
553 {
554 if ( IsSelected() )
555 {
556 image = GetImage(wxTreeItemIcon_SelectedExpanded);
557 }
558
559 if ( image == NO_IMAGE )
560 {
561 // we usually fall back to the normal item, but try just the
562 // expanded one (and not selected) first in this case
563 image = GetImage(wxTreeItemIcon_Expanded);
564 }
565 }
566 else // not expanded
567 {
568 if ( IsSelected() )
569 image = GetImage(wxTreeItemIcon_Selected);
570 }
571
572 // maybe it doesn't have the specific image we want,
573 // try the default one instead
574 if ( image == NO_IMAGE ) image = GetImage();
575
576 return image;
577}
578
579// -----------------------------------------------------------------------------
580// wxGenericTreeCtrl implementation
581// -----------------------------------------------------------------------------
582
583IMPLEMENT_DYNAMIC_CLASS(wxGenericTreeCtrl, wxScrolledWindow)
584
585BEGIN_EVENT_TABLE(wxGenericTreeCtrl,wxScrolledWindow)
586 EVT_PAINT (wxGenericTreeCtrl::OnPaint)
587 EVT_MOUSE_EVENTS (wxGenericTreeCtrl::OnMouse)
588 EVT_CHAR (wxGenericTreeCtrl::OnChar)
589 EVT_SET_FOCUS (wxGenericTreeCtrl::OnSetFocus)
590 EVT_KILL_FOCUS (wxGenericTreeCtrl::OnKillFocus)
591 EVT_IDLE (wxGenericTreeCtrl::OnIdle)
592END_EVENT_TABLE()
593
594#if !defined(__WXMSW__) || defined(__WIN16__) || defined(__WXUNIVERSAL__)
595/*
596 * wxTreeCtrl has to be a real class or we have problems with
597 * the run-time information.
598 */
599
600IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxGenericTreeCtrl)
601#endif
602
603// -----------------------------------------------------------------------------
604// construction/destruction
605// -----------------------------------------------------------------------------
606
607void wxGenericTreeCtrl::Init()
608{
609 m_current = m_key_current = m_anchor = (wxGenericTreeItem *) NULL;
610 m_hasFocus = FALSE;
611 m_dirty = FALSE;
612
613 m_lineHeight = 10;
614 m_indent = 15;
615 m_spacing = 18;
616
617 m_hilightBrush = new wxBrush
618 (
619 wxSystemSettings::GetSystemColour
620 (
621 wxSYS_COLOUR_HIGHLIGHT
622 ),
623 wxSOLID
624 );
625
626 m_hilightUnfocusedBrush = new wxBrush
627 (
628 wxSystemSettings::GetSystemColour
629 (
630 wxSYS_COLOUR_BTNSHADOW
631 ),
632 wxSOLID
633 );
634
635 m_imageListNormal = m_imageListButtons =
636 m_imageListState = (wxImageList *) NULL;
637 m_ownsImageListNormal = m_ownsImageListButtons =
638 m_ownsImageListState = FALSE;
639
640 m_dragCount = 0;
641 m_isDragging = FALSE;
642 m_dropTarget = m_oldSelection = (wxGenericTreeItem *)NULL;
643
644 m_renameTimer = new wxTreeRenameTimer( this );
645 m_lastOnSame = FALSE;
646
647 m_normalFont = wxSystemSettings::GetSystemFont( wxSYS_DEFAULT_GUI_FONT );
648 m_boldFont = wxFont( m_normalFont.GetPointSize(),
649 m_normalFont.GetFamily(),
650 m_normalFont.GetStyle(),
651 wxBOLD,
652 m_normalFont.GetUnderlined());
653}
654
655bool wxGenericTreeCtrl::Create(wxWindow *parent,
656 wxWindowID id,
657 const wxPoint& pos,
658 const wxSize& size,
659 long style,
660 const wxValidator &validator,
661 const wxString& name )
662{
663 wxScrolledWindow::Create( parent, id, pos, size,
664 style|wxHSCROLL|wxVSCROLL, name );
665
666 // If the tree display has no buttons, but does have
667 // connecting lines, we can use a narrower layout.
668 // It may not be a good idea to force this...
669 if (!HasButtons() && !HasFlag(wxTR_NO_LINES))
670 {
671 m_indent= 10;
672 m_spacing = 10;
673 }
674
675#if wxUSE_VALIDATORS
676 SetValidator( validator );
677#endif
678
679 SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_LISTBOX ) );
680
681// m_dottedPen = wxPen( "grey", 0, wxDOT ); too slow under XFree86
682 m_dottedPen = wxPen( "grey", 0, 0 );
683
684 return TRUE;
685}
686
687wxGenericTreeCtrl::~wxGenericTreeCtrl()
688{
689 delete m_hilightBrush;
690 delete m_hilightUnfocusedBrush;
691
692 DeleteAllItems();
693
694 delete m_renameTimer;
695 if (m_ownsImageListNormal) delete m_imageListNormal;
696 if (m_ownsImageListState) delete m_imageListState;
697 if (m_ownsImageListButtons) delete m_imageListButtons;
698}
699
700// -----------------------------------------------------------------------------
701// accessors
702// -----------------------------------------------------------------------------
703
704size_t wxGenericTreeCtrl::GetCount() const
705{
706 return m_anchor == NULL ? 0u : m_anchor->GetChildrenCount();
707}
708
709void wxGenericTreeCtrl::SetIndent(unsigned int indent)
710{
711 m_indent = indent;
712 m_dirty = TRUE;
713}
714
715void wxGenericTreeCtrl::SetSpacing(unsigned int spacing)
716{
717 m_spacing = spacing;
718 m_dirty = TRUE;
719}
720
721size_t wxGenericTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recursively)
722{
723 wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") );
724
725 return ((wxGenericTreeItem*) item.m_pItem)->GetChildrenCount(recursively);
726}
727
728void wxGenericTreeCtrl::SetWindowStyle(const long styles)
729{
730 // right now, just sets the styles. Eventually, we may
731 // want to update the inherited styles, but right now
732 // none of the parents has updatable styles
733 m_windowStyle = styles;
734 m_dirty = TRUE;
735}
736
737// -----------------------------------------------------------------------------
738// functions to work with tree items
739// -----------------------------------------------------------------------------
740
741wxString wxGenericTreeCtrl::GetItemText(const wxTreeItemId& item) const
742{
743 wxCHECK_MSG( item.IsOk(), wxT(""), wxT("invalid tree item") );
744
745 return ((wxGenericTreeItem*) item.m_pItem)->GetText();
746}
747
748int wxGenericTreeCtrl::GetItemImage(const wxTreeItemId& item,
749 wxTreeItemIcon which) const
750{
751 wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") );
752
753 return ((wxGenericTreeItem*) item.m_pItem)->GetImage(which);
754}
755
756wxTreeItemData *wxGenericTreeCtrl::GetItemData(const wxTreeItemId& item) const
757{
758 wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
759
760 return ((wxGenericTreeItem*) item.m_pItem)->GetData();
761}
762
763void wxGenericTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
764{
765 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
766
767 wxClientDC dc(this);
768 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
769 pItem->SetText(text);
770 CalculateSize(pItem, dc);
771 RefreshLine(pItem);
772}
773
774void wxGenericTreeCtrl::SetItemImage(const wxTreeItemId& item,
775 int image,
776 wxTreeItemIcon which)
777{
778 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
779
780 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
781 pItem->SetImage(image, which);
782
783 wxClientDC dc(this);
784 CalculateSize(pItem, dc);
785 RefreshLine(pItem);
786}
787
788void wxGenericTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
789{
790 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
791
792 ((wxGenericTreeItem*) item.m_pItem)->SetData(data);
793}
794
795void wxGenericTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
796{
797 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
798
799 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
800 pItem->SetHasPlus(has);
801 RefreshLine(pItem);
802}
803
804void wxGenericTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
805{
806 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
807
808 // avoid redrawing the tree if no real change
809 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
810 if ( pItem->IsBold() != bold )
811 {
812 pItem->SetBold(bold);
813 RefreshLine(pItem);
814 }
815}
816
817void wxGenericTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
818 const wxColour& col)
819{
820 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
821
822 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
823 pItem->Attr().SetTextColour(col);
824 RefreshLine(pItem);
825}
826
827void wxGenericTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
828 const wxColour& col)
829{
830 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
831
832 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
833 pItem->Attr().SetBackgroundColour(col);
834 RefreshLine(pItem);
835}
836
837void wxGenericTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
838{
839 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
840
841 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
842 pItem->Attr().SetFont(font);
843 RefreshLine(pItem);
844}
845
846bool wxGenericTreeCtrl::SetFont( const wxFont &font )
847{
848 wxScrolledWindow::SetFont(font);
849
850 m_normalFont = font ;
851 m_boldFont = wxFont( m_normalFont.GetPointSize(),
852 m_normalFont.GetFamily(),
853 m_normalFont.GetStyle(),
854 wxBOLD,
855 m_normalFont.GetUnderlined());
856
857 return TRUE;
858}
859
860
861// -----------------------------------------------------------------------------
862// item status inquiries
863// -----------------------------------------------------------------------------
864
865bool wxGenericTreeCtrl::IsVisible(const wxTreeItemId& item) const
866{
867 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
868
869 // An item is only visible if it's not a descendant of a collapsed item
870 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
871 wxGenericTreeItem* parent = pItem->GetParent();
872 while (parent)
873 {
874 if (!parent->IsExpanded())
875 return FALSE;
876 parent = parent->GetParent();
877 }
878
879 int startX, startY;
880 GetViewStart(& startX, & startY);
881
882 wxSize clientSize = GetClientSize();
883
884 wxRect rect;
885 if (!GetBoundingRect(item, rect))
886 return FALSE;
887 if (rect.GetWidth() == 0 || rect.GetHeight() == 0)
888 return FALSE;
889 if (rect.GetBottom() < 0 || rect.GetTop() > clientSize.y)
890 return FALSE;
891 if (rect.GetRight() < 0 || rect.GetLeft() > clientSize.x)
892 return FALSE;
893
894 return TRUE;
895}
896
897bool wxGenericTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
898{
899 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
900
901 return !((wxGenericTreeItem*) item.m_pItem)->GetChildren().IsEmpty();
902}
903
904bool wxGenericTreeCtrl::IsExpanded(const wxTreeItemId& item) const
905{
906 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
907
908 return ((wxGenericTreeItem*) item.m_pItem)->IsExpanded();
909}
910
911bool wxGenericTreeCtrl::IsSelected(const wxTreeItemId& item) const
912{
913 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
914
915 return ((wxGenericTreeItem*) item.m_pItem)->IsSelected();
916}
917
918bool wxGenericTreeCtrl::IsBold(const wxTreeItemId& item) const
919{
920 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
921
922 return ((wxGenericTreeItem*) item.m_pItem)->IsBold();
923}
924
925// -----------------------------------------------------------------------------
926// navigation
927// -----------------------------------------------------------------------------
928
929wxTreeItemId wxGenericTreeCtrl::GetParent(const wxTreeItemId& item) const
930{
931 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
932
933 return ((wxGenericTreeItem*) item.m_pItem)->GetParent();
934}
935
936wxTreeItemId wxGenericTreeCtrl::GetFirstChild(const wxTreeItemId& item, long& cookie) const
937{
938 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
939
940 cookie = 0;
941 return GetNextChild(item, cookie);
942}
943
944wxTreeItemId wxGenericTreeCtrl::GetNextChild(const wxTreeItemId& item, long& cookie) const
945{
946 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
947
948 wxArrayGenericTreeItems& children = ((wxGenericTreeItem*) item.m_pItem)->GetChildren();
949 if ( (size_t)cookie < children.Count() )
950 {
951 return children.Item((size_t)cookie++);
952 }
953 else
954 {
955 // there are no more of them
956 return wxTreeItemId();
957 }
958}
959
960wxTreeItemId wxGenericTreeCtrl::GetLastChild(const wxTreeItemId& item) const
961{
962 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
963
964 wxArrayGenericTreeItems& children = ((wxGenericTreeItem*) item.m_pItem)->GetChildren();
965 return (children.IsEmpty() ? wxTreeItemId() : wxTreeItemId(children.Last()));
966}
967
968wxTreeItemId wxGenericTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
969{
970 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
971
972 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
973 wxGenericTreeItem *parent = i->GetParent();
974 if ( parent == NULL )
975 {
976 // root item doesn't have any siblings
977 return wxTreeItemId();
978 }
979
980 wxArrayGenericTreeItems& siblings = parent->GetChildren();
981 int index = siblings.Index(i);
982 wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
983
984 size_t n = (size_t)(index + 1);
985 return n == siblings.Count() ? wxTreeItemId() : wxTreeItemId(siblings[n]);
986}
987
988wxTreeItemId wxGenericTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
989{
990 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
991
992 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
993 wxGenericTreeItem *parent = i->GetParent();
994 if ( parent == NULL )
995 {
996 // root item doesn't have any siblings
997 return wxTreeItemId();
998 }
999
1000 wxArrayGenericTreeItems& siblings = parent->GetChildren();
1001 int index = siblings.Index(i);
1002 wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
1003
1004 return index == 0 ? wxTreeItemId()
1005 : wxTreeItemId(siblings[(size_t)(index - 1)]);
1006}
1007
1008// Only for internal use right now, but should probably be public
1009wxTreeItemId wxGenericTreeCtrl::GetNext(const wxTreeItemId& item) const
1010{
1011 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1012
1013 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
1014
1015 // First see if there are any children.
1016 wxArrayGenericTreeItems& children = i->GetChildren();
1017 if (children.GetCount() > 0)
1018 {
1019 return children.Item(0);
1020 }
1021 else
1022 {
1023 // Try a sibling of this or ancestor instead
1024 wxTreeItemId p = item;
1025 wxTreeItemId toFind;
1026 do
1027 {
1028 toFind = GetNextSibling(p);
1029 p = GetParent(p);
1030 } while (p.IsOk() && !toFind.IsOk());
1031 return toFind;
1032 }
1033}
1034
1035wxTreeItemId wxGenericTreeCtrl::GetPrev(const wxTreeItemId& item) const
1036{
1037 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1038
1039 wxFAIL_MSG(wxT("not implemented"));
1040
1041 return wxTreeItemId();
1042}
1043
1044wxTreeItemId wxGenericTreeCtrl::GetFirstVisibleItem() const
1045{
1046 wxTreeItemId id = GetRootItem();
1047 if (!id.IsOk())
1048 return id;
1049
1050 do
1051 {
1052 if (IsVisible(id))
1053 return id;
1054 id = GetNext(id);
1055 } while (id.IsOk());
1056
1057 return wxTreeItemId();
1058}
1059
1060wxTreeItemId wxGenericTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
1061{
1062 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1063
1064 wxTreeItemId id = item;
1065 if (id.IsOk())
1066 {
1067 while (id = GetNext(id), id.IsOk())
1068 {
1069 if (IsVisible(id))
1070 return id;
1071 }
1072 }
1073 return wxTreeItemId();
1074}
1075
1076wxTreeItemId wxGenericTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
1077{
1078 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1079
1080 wxFAIL_MSG(wxT("not implemented"));
1081
1082 return wxTreeItemId();
1083}
1084
1085// -----------------------------------------------------------------------------
1086// operations
1087// -----------------------------------------------------------------------------
1088
1089wxTreeItemId wxGenericTreeCtrl::DoInsertItem(const wxTreeItemId& parentId,
1090 size_t previous,
1091 const wxString& text,
1092 int image, int selImage,
1093 wxTreeItemData *data)
1094{
1095 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1096 if ( !parent )
1097 {
1098 // should we give a warning here?
1099 return AddRoot(text, image, selImage, data);
1100 }
1101
1102 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1103
1104 wxClientDC dc(this);
1105 wxGenericTreeItem *item =
1106 new wxGenericTreeItem( parent, text, dc, image, selImage, data );
1107
1108 if ( data != NULL )
1109 {
1110 data->m_pItem = (long) item;
1111 }
1112
1113 parent->Insert( item, previous );
1114
1115 return item;
1116}
1117
1118wxTreeItemId wxGenericTreeCtrl::AddRoot(const wxString& text,
1119 int image, int selImage,
1120 wxTreeItemData *data)
1121{
1122 wxCHECK_MSG( !m_anchor, wxTreeItemId(), wxT("tree can have only one root") );
1123
1124 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1125
1126 wxClientDC dc(this);
1127 m_anchor = new wxGenericTreeItem((wxGenericTreeItem *)NULL, text, dc,
1128 image, selImage, data);
1129 if (HasFlag(wxTR_HIDE_ROOT))
1130 {
1131 // if root is hidden, make sure we can navigate
1132 // into children
1133 m_anchor->SetHasPlus();
1134 Expand(m_anchor);
1135 }
1136 if ( data != NULL )
1137 {
1138 data->m_pItem = (long) m_anchor;
1139 }
1140
1141 if (!HasFlag(wxTR_MULTIPLE))
1142 {
1143 m_current = m_key_current = m_anchor;
1144 m_current->SetHilight( TRUE );
1145 }
1146
1147 return m_anchor;
1148}
1149
1150wxTreeItemId wxGenericTreeCtrl::PrependItem(const wxTreeItemId& parent,
1151 const wxString& text,
1152 int image, int selImage,
1153 wxTreeItemData *data)
1154{
1155 return DoInsertItem(parent, 0u, text, image, selImage, data);
1156}
1157
1158wxTreeItemId wxGenericTreeCtrl::InsertItem(const wxTreeItemId& parentId,
1159 const wxTreeItemId& idPrevious,
1160 const wxString& text,
1161 int image, int selImage,
1162 wxTreeItemData *data)
1163{
1164 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1165 if ( !parent )
1166 {
1167 // should we give a warning here?
1168 return AddRoot(text, image, selImage, data);
1169 }
1170
1171 int index = parent->GetChildren().Index((wxGenericTreeItem*) idPrevious.m_pItem);
1172 wxASSERT_MSG( index != wxNOT_FOUND,
1173 wxT("previous item in wxGenericTreeCtrl::InsertItem() is not a sibling") );
1174
1175 return DoInsertItem(parentId, (size_t)++index, text, image, selImage, data);
1176}
1177
1178wxTreeItemId wxGenericTreeCtrl::InsertItem(const wxTreeItemId& parentId,
1179 size_t before,
1180 const wxString& text,
1181 int image, int selImage,
1182 wxTreeItemData *data)
1183{
1184 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1185 if ( !parent )
1186 {
1187 // should we give a warning here?
1188 return AddRoot(text, image, selImage, data);
1189 }
1190
1191 return DoInsertItem(parentId, before, text, image, selImage, data);
1192}
1193
1194wxTreeItemId wxGenericTreeCtrl::AppendItem(const wxTreeItemId& parentId,
1195 const wxString& text,
1196 int image, int selImage,
1197 wxTreeItemData *data)
1198{
1199 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1200 if ( !parent )
1201 {
1202 // should we give a warning here?
1203 return AddRoot(text, image, selImage, data);
1204 }
1205
1206 return DoInsertItem( parent, parent->GetChildren().Count(), text,
1207 image, selImage, data);
1208}
1209
1210void wxGenericTreeCtrl::SendDeleteEvent(wxGenericTreeItem *item)
1211{
1212 wxTreeEvent event( wxEVT_COMMAND_TREE_DELETE_ITEM, GetId() );
1213 event.m_item = (long) item;
1214 event.SetEventObject( this );
1215 ProcessEvent( event );
1216}
1217
1218void wxGenericTreeCtrl::DeleteChildren(const wxTreeItemId& itemId)
1219{
1220 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1221
1222 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1223 item->DeleteChildren(this);
1224}
1225
1226void wxGenericTreeCtrl::Delete(const wxTreeItemId& itemId)
1227{
1228 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1229
1230 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1231
1232 // don't stay with invalid m_key_current or we will crash in
1233 // the next call to OnChar()
1234 bool changeKeyCurrent = FALSE;
1235 wxGenericTreeItem *itemKey = m_key_current;
1236 while ( itemKey )
1237 {
1238 if ( itemKey == item )
1239 {
1240 // m_key_current is a descendant of the item being deleted
1241 changeKeyCurrent = TRUE;
1242 break;
1243 }
1244 itemKey = itemKey->GetParent();
1245 }
1246
1247 wxGenericTreeItem *parent = item->GetParent();
1248 if ( parent )
1249 {
1250 parent->GetChildren().Remove( item ); // remove by value
1251 }
1252
1253 if ( changeKeyCurrent )
1254 {
1255 // may be NULL or not
1256 m_key_current = parent;
1257 }
1258
1259 item->DeleteChildren(this);
1260 SendDeleteEvent(item);
1261 delete item;
1262}
1263
1264void wxGenericTreeCtrl::DeleteAllItems()
1265{
1266 if ( m_anchor )
1267 {
1268 m_dirty = TRUE;
1269
1270 m_anchor->DeleteChildren(this);
1271 delete m_anchor;
1272
1273 m_anchor = NULL;
1274 }
1275}
1276
1277void wxGenericTreeCtrl::Expand(const wxTreeItemId& itemId)
1278{
1279 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1280
1281 wxCHECK_RET( item, _T("invalid item in wxGenericTreeCtrl::Expand") );
1282
1283 if ( !item->HasPlus() )
1284 return;
1285
1286 if ( item->IsExpanded() )
1287 return;
1288
1289 wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_EXPANDING, GetId() );
1290 event.m_item = (long) item;
1291 event.SetEventObject( this );
1292
1293 if ( ProcessEvent( event ) && !event.IsAllowed() )
1294 {
1295 // cancelled by program
1296 return;
1297 }
1298
1299 item->Expand();
1300 CalculatePositions();
1301
1302 RefreshSubtree(item);
1303
1304 event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED);
1305 ProcessEvent( event );
1306}
1307
1308void wxGenericTreeCtrl::ExpandAll(const wxTreeItemId& item)
1309{
1310 Expand(item);
1311 if ( IsExpanded(item) )
1312 {
1313 long cookie;
1314 wxTreeItemId child = GetFirstChild(item, cookie);
1315 while ( child.IsOk() )
1316 {
1317 ExpandAll(child);
1318
1319 child = GetNextChild(item, cookie);
1320 }
1321 }
1322}
1323
1324void wxGenericTreeCtrl::Collapse(const wxTreeItemId& itemId)
1325{
1326 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1327
1328 if ( !item->IsExpanded() )
1329 return;
1330
1331 wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_COLLAPSING, GetId() );
1332 event.m_item = (long) item;
1333 event.SetEventObject( this );
1334 if ( ProcessEvent( event ) && !event.IsAllowed() )
1335 {
1336 // cancelled by program
1337 return;
1338 }
1339
1340 item->Collapse();
1341
1342#if 0 // TODO why should items be collapsed recursively?
1343 wxArrayGenericTreeItems& children = item->GetChildren();
1344 size_t count = children.Count();
1345 for ( size_t n = 0; n < count; n++ )
1346 {
1347 Collapse(children[n]);
1348 }
1349#endif
1350
1351 CalculatePositions();
1352
1353 RefreshSubtree(item);
1354
1355 event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED);
1356 ProcessEvent( event );
1357}
1358
1359void wxGenericTreeCtrl::CollapseAndReset(const wxTreeItemId& item)
1360{
1361 Collapse(item);
1362 DeleteChildren(item);
1363}
1364
1365void wxGenericTreeCtrl::Toggle(const wxTreeItemId& itemId)
1366{
1367 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1368
1369 if (item->IsExpanded())
1370 Collapse(itemId);
1371 else
1372 Expand(itemId);
1373}
1374
1375void wxGenericTreeCtrl::Unselect()
1376{
1377 if (m_current)
1378 {
1379 m_current->SetHilight( FALSE );
1380 RefreshLine( m_current );
1381 }
1382}
1383
1384void wxGenericTreeCtrl::UnselectAllChildren(wxGenericTreeItem *item)
1385{
1386 if (item->IsSelected())
1387 {
1388 item->SetHilight(FALSE);
1389 RefreshLine(item);
1390 }
1391
1392 if (item->HasChildren())
1393 {
1394 wxArrayGenericTreeItems& children = item->GetChildren();
1395 size_t count = children.Count();
1396 for ( size_t n = 0; n < count; ++n )
1397 {
1398 UnselectAllChildren(children[n]);
1399 }
1400 }
1401}
1402
1403void wxGenericTreeCtrl::UnselectAll()
1404{
1405 UnselectAllChildren((wxGenericTreeItem*) GetRootItem().m_pItem);
1406}
1407
1408// Recursive function !
1409// To stop we must have crt_item<last_item
1410// Algorithm :
1411// Tag all next children, when no more children,
1412// Move to parent (not to tag)
1413// Keep going... if we found last_item, we stop.
1414bool wxGenericTreeCtrl::TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
1415{
1416 wxGenericTreeItem *parent = crt_item->GetParent();
1417
1418 if (parent == NULL) // This is root item
1419 return TagAllChildrenUntilLast(crt_item, last_item, select);
1420
1421 wxArrayGenericTreeItems& children = parent->GetChildren();
1422 int index = children.Index(crt_item);
1423 wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
1424
1425 size_t count = children.Count();
1426 for (size_t n=(size_t)(index+1); n<count; ++n)
1427 {
1428 if (TagAllChildrenUntilLast(children[n], last_item, select)) return TRUE;
1429 }
1430
1431 return TagNextChildren(parent, last_item, select);
1432}
1433
1434bool wxGenericTreeCtrl::TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
1435{
1436 crt_item->SetHilight(select);
1437 RefreshLine(crt_item);
1438
1439 if (crt_item==last_item)
1440 return TRUE;
1441
1442 if (crt_item->HasChildren())
1443 {
1444 wxArrayGenericTreeItems& children = crt_item->GetChildren();
1445 size_t count = children.Count();
1446 for ( size_t n = 0; n < count; ++n )
1447 {
1448 if (TagAllChildrenUntilLast(children[n], last_item, select))
1449 return TRUE;
1450 }
1451 }
1452
1453 return FALSE;
1454}
1455
1456void wxGenericTreeCtrl::SelectItemRange(wxGenericTreeItem *item1, wxGenericTreeItem *item2)
1457{
1458 // item2 is not necessary after item1
1459 wxGenericTreeItem *first=NULL, *last=NULL;
1460
1461 // choice first' and 'last' between item1 and item2
1462 if (item1->GetY()<item2->GetY())
1463 {
1464 first=item1;
1465 last=item2;
1466 }
1467 else
1468 {
1469 first=item2;
1470 last=item1;
1471 }
1472
1473 bool select = m_current->IsSelected();
1474
1475 if ( TagAllChildrenUntilLast(first,last,select) )
1476 return;
1477
1478 TagNextChildren(first,last,select);
1479}
1480
1481void wxGenericTreeCtrl::SelectItem(const wxTreeItemId& itemId,
1482 bool unselect_others,
1483 bool extended_select)
1484{
1485 wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
1486
1487 bool is_single=!(GetWindowStyleFlag() & wxTR_MULTIPLE);
1488 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1489
1490 //wxCHECK_RET( ( (!unselect_others) && is_single),
1491 // wxT("this is a single selection tree") );
1492
1493 // to keep going anyhow !!!
1494 if (is_single)
1495 {
1496 if (item->IsSelected())
1497 return; // nothing to do
1498 unselect_others = TRUE;
1499 extended_select = FALSE;
1500 }
1501 else if ( unselect_others && item->IsSelected() )
1502 {
1503 // selection change if there is more than one item currently selected
1504 wxArrayTreeItemIds selected_items;
1505 if ( GetSelections(selected_items) == 1 )
1506 return;
1507 }
1508
1509 wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGING, GetId() );
1510 event.m_item = (long) item;
1511 event.m_itemOld = (long) m_current;
1512 event.SetEventObject( this );
1513 // TODO : Here we don't send any selection mode yet !
1514
1515 if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
1516 return;
1517
1518 wxTreeItemId parent = GetParent( itemId );
1519 while (parent.IsOk())
1520 {
1521 if (!IsExpanded(parent))
1522 Expand( parent );
1523
1524 parent = GetParent( parent );
1525 }
1526
1527 EnsureVisible( itemId );
1528
1529 // ctrl press
1530 if (unselect_others)
1531 {
1532 if (is_single) Unselect(); // to speed up thing
1533 else UnselectAll();
1534 }
1535
1536 // shift press
1537 if (extended_select)
1538 {
1539 if ( !m_current )
1540 {
1541 m_current = m_key_current = (wxGenericTreeItem*) GetRootItem().m_pItem;
1542 }
1543
1544 // don't change the mark (m_current)
1545 SelectItemRange(m_current, item);
1546 }
1547 else
1548 {
1549 bool select=TRUE; // the default
1550
1551 // Check if we need to toggle hilight (ctrl mode)
1552 if (!unselect_others)
1553 select=!item->IsSelected();
1554
1555 m_current = m_key_current = item;
1556 m_current->SetHilight(select);
1557 RefreshLine( m_current );
1558 }
1559
1560 event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
1561 GetEventHandler()->ProcessEvent( event );
1562}
1563
1564void wxGenericTreeCtrl::FillArray(wxGenericTreeItem *item,
1565 wxArrayTreeItemIds &array) const
1566{
1567 if ( item->IsSelected() )
1568 array.Add(wxTreeItemId(item));
1569
1570 if ( item->HasChildren() )
1571 {
1572 wxArrayGenericTreeItems& children = item->GetChildren();
1573 size_t count = children.GetCount();
1574 for ( size_t n = 0; n < count; ++n )
1575 FillArray(children[n], array);
1576 }
1577}
1578
1579size_t wxGenericTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const
1580{
1581 array.Empty();
1582 wxTreeItemId idRoot = GetRootItem();
1583 if ( idRoot.IsOk() )
1584 {
1585 FillArray((wxGenericTreeItem*) idRoot.m_pItem, array);
1586 }
1587 //else: the tree is empty, so no selections
1588
1589 return array.Count();
1590}
1591
1592void wxGenericTreeCtrl::EnsureVisible(const wxTreeItemId& item)
1593{
1594 if (!item.IsOk()) return;
1595
1596 wxGenericTreeItem *gitem = (wxGenericTreeItem*) item.m_pItem;
1597
1598 // first expand all parent branches
1599 wxGenericTreeItem *parent = gitem->GetParent();
1600 while ( parent )
1601 {
1602 Expand(parent);
1603 parent = parent->GetParent();
1604 }
1605
1606 //if (parent) CalculatePositions();
1607
1608 ScrollTo(item);
1609}
1610
1611void wxGenericTreeCtrl::ScrollTo(const wxTreeItemId &item)
1612{
1613 if (!item.IsOk()) return;
1614
1615 // We have to call this here because the label in
1616 // question might just have been added and no screen
1617 // update taken place.
1618 if (m_dirty) wxYieldIfNeeded();
1619
1620 wxGenericTreeItem *gitem = (wxGenericTreeItem*) item.m_pItem;
1621
1622 // now scroll to the item
1623 int item_y = gitem->GetY();
1624
1625 int start_x = 0;
1626 int start_y = 0;
1627 GetViewStart( &start_x, &start_y );
1628 start_y *= PIXELS_PER_UNIT;
1629
1630 int client_h = 0;
1631 int client_w = 0;
1632 GetClientSize( &client_w, &client_h );
1633
1634 if (item_y < start_y+3)
1635 {
1636 // going down
1637 int x = 0;
1638 int y = 0;
1639 m_anchor->GetSize( x, y, this );
1640 y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1641 x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1642 int x_pos = GetScrollPos( wxHORIZONTAL );
1643 // Item should appear at top
1644 SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, item_y/PIXELS_PER_UNIT );
1645 }
1646 else if (item_y+GetLineHeight(gitem) > start_y+client_h)
1647 {
1648 // going up
1649 int x = 0;
1650 int y = 0;
1651 m_anchor->GetSize( x, y, this );
1652 y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1653 x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1654 item_y += PIXELS_PER_UNIT+2;
1655 int x_pos = GetScrollPos( wxHORIZONTAL );
1656 // Item should appear at bottom
1657 SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, (item_y+GetLineHeight(gitem)-client_h)/PIXELS_PER_UNIT );
1658 }
1659}
1660
1661// FIXME: tree sorting functions are not reentrant and not MT-safe!
1662static wxGenericTreeCtrl *s_treeBeingSorted = NULL;
1663
1664static int LINKAGEMODE tree_ctrl_compare_func(wxGenericTreeItem **item1,
1665 wxGenericTreeItem **item2)
1666{
1667 wxCHECK_MSG( s_treeBeingSorted, 0, wxT("bug in wxGenericTreeCtrl::SortChildren()") );
1668
1669 return s_treeBeingSorted->OnCompareItems(*item1, *item2);
1670}
1671
1672int wxGenericTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
1673 const wxTreeItemId& item2)
1674{
1675 return wxStrcmp(GetItemText(item1), GetItemText(item2));
1676}
1677
1678void wxGenericTreeCtrl::SortChildren(const wxTreeItemId& itemId)
1679{
1680 wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
1681
1682 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1683
1684 wxCHECK_RET( !s_treeBeingSorted,
1685 wxT("wxGenericTreeCtrl::SortChildren is not reentrant") );
1686
1687 wxArrayGenericTreeItems& children = item->GetChildren();
1688 if ( children.Count() > 1 )
1689 {
1690 m_dirty = TRUE;
1691
1692 s_treeBeingSorted = this;
1693 children.Sort(tree_ctrl_compare_func);
1694 s_treeBeingSorted = NULL;
1695 }
1696 //else: don't make the tree dirty as nothing changed
1697}
1698
1699wxImageList *wxGenericTreeCtrl::GetImageList() const
1700{
1701 return m_imageListNormal;
1702}
1703
1704wxImageList *wxGenericTreeCtrl::GetButtonsImageList() const
1705{
1706 return m_imageListButtons;
1707}
1708
1709wxImageList *wxGenericTreeCtrl::GetStateImageList() const
1710{
1711 return m_imageListState;
1712}
1713
1714void wxGenericTreeCtrl::CalculateLineHeight()
1715{
1716 wxClientDC dc(this);
1717 m_lineHeight = (int)(dc.GetCharHeight() + 4);
1718
1719 if ( m_imageListNormal )
1720 {
1721 // Calculate a m_lineHeight value from the normal Image sizes.
1722 // May be toggle off. Then wxGenericTreeCtrl will spread when
1723 // necessary (which might look ugly).
1724 int n = m_imageListNormal->GetImageCount();
1725 for (int i = 0; i < n ; i++)
1726 {
1727 int width = 0, height = 0;
1728 m_imageListNormal->GetSize(i, width, height);
1729 if (height > m_lineHeight) m_lineHeight = height;
1730 }
1731 }
1732
1733 if (m_imageListButtons)
1734 {
1735 // Calculate a m_lineHeight value from the Button image sizes.
1736 // May be toggle off. Then wxGenericTreeCtrl will spread when
1737 // necessary (which might look ugly).
1738 int n = m_imageListButtons->GetImageCount();
1739 for (int i = 0; i < n ; i++)
1740 {
1741 int width = 0, height = 0;
1742 m_imageListButtons->GetSize(i, width, height);
1743 if (height > m_lineHeight) m_lineHeight = height;
1744 }
1745 }
1746
1747 if (m_lineHeight < 30)
1748 m_lineHeight += 2; // at least 2 pixels
1749 else
1750 m_lineHeight += m_lineHeight/10; // otherwise 10% extra spacing
1751}
1752
1753void wxGenericTreeCtrl::SetImageList(wxImageList *imageList)
1754{
1755 if (m_ownsImageListNormal) delete m_imageListNormal;
1756 m_imageListNormal = imageList;
1757 m_ownsImageListNormal = FALSE;
1758 m_dirty = TRUE;
1759 CalculateLineHeight();
1760}
1761
1762void wxGenericTreeCtrl::SetStateImageList(wxImageList *imageList)
1763{
1764 if (m_ownsImageListState) delete m_imageListState;
1765 m_imageListState = imageList;
1766 m_ownsImageListState = FALSE;
1767}
1768
1769void wxGenericTreeCtrl::SetButtonsImageList(wxImageList *imageList)
1770{
1771 if (m_ownsImageListButtons) delete m_imageListButtons;
1772 m_imageListButtons = imageList;
1773 m_ownsImageListButtons = FALSE;
1774 m_dirty = TRUE;
1775 CalculateLineHeight();
1776}
1777
1778void wxGenericTreeCtrl::AssignImageList(wxImageList *imageList)
1779{
1780 SetImageList(imageList);
1781 m_ownsImageListNormal = TRUE;
1782}
1783
1784void wxGenericTreeCtrl::AssignStateImageList(wxImageList *imageList)
1785{
1786 SetStateImageList(imageList);
1787 m_ownsImageListState = TRUE;
1788}
1789
1790void wxGenericTreeCtrl::AssignButtonsImageList(wxImageList *imageList)
1791{
1792 SetButtonsImageList(imageList);
1793 m_ownsImageListButtons = TRUE;
1794}
1795
1796// -----------------------------------------------------------------------------
1797// helpers
1798// -----------------------------------------------------------------------------
1799
1800void wxGenericTreeCtrl::AdjustMyScrollbars()
1801{
1802 if (m_anchor)
1803 {
1804 int x = 0, y = 0;
1805 m_anchor->GetSize( x, y, this );
1806 y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1807 x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1808 int x_pos = GetScrollPos( wxHORIZONTAL );
1809 int y_pos = GetScrollPos( wxVERTICAL );
1810 SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, y_pos );
1811 }
1812 else
1813 {
1814 SetScrollbars( 0, 0, 0, 0 );
1815 }
1816}
1817
1818int wxGenericTreeCtrl::GetLineHeight(wxGenericTreeItem *item) const
1819{
1820 if (GetWindowStyleFlag() & wxTR_HAS_VARIABLE_ROW_HEIGHT)
1821 return item->GetHeight();
1822 else
1823 return m_lineHeight;
1824}
1825
1826void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc)
1827{
1828 // TODO implement "state" icon on items
1829
1830 wxTreeItemAttr *attr = item->GetAttributes();
1831 if ( attr && attr->HasFont() )
1832 dc.SetFont(attr->GetFont());
1833 else if (item->IsBold())
1834 dc.SetFont(m_boldFont);
1835
1836 long text_w = 0, text_h = 0;
1837 dc.GetTextExtent( item->GetText(), &text_w, &text_h );
1838
1839 int image_h = 0, image_w = 0;
1840 int image = item->GetCurrentImage();
1841 if ( image != NO_IMAGE )
1842 {
1843 if ( m_imageListNormal )
1844 {
1845 m_imageListNormal->GetSize( image, image_w, image_h );
1846 image_w += 4;
1847 }
1848 else
1849 {
1850 image = NO_IMAGE;
1851 }
1852 }
1853
1854 int total_h = GetLineHeight(item);
1855
1856 if ( item->IsSelected() )
1857 {
1858 dc.SetBrush(*(m_hasFocus ? m_hilightBrush : m_hilightUnfocusedBrush));
1859 }
1860 else
1861 {
1862 wxColour colBg;
1863 if ( attr && attr->HasBackgroundColour() )
1864 colBg = attr->GetBackgroundColour();
1865 else
1866 colBg = m_backgroundColour;
1867 dc.SetBrush(wxBrush(colBg, wxSOLID));
1868 }
1869
1870 int offset = HasFlag(wxTR_ROW_LINES) ? 1 : 0;
1871
1872 if ( item->IsSelected() && image != NO_IMAGE )
1873 {
1874 // If it's selected, and there's an image, then we should
1875 // take care to leave the area under the image painted in the
1876 // background colour.
1877 dc.DrawRectangle( item->GetX() + image_w - 2, item->GetY()+offset,
1878 item->GetWidth() - image_w + 2, total_h-offset );
1879 }
1880 else
1881 {
1882 dc.DrawRectangle( item->GetX()-2, item->GetY()+offset,
1883 item->GetWidth()+2, total_h-offset );
1884 }
1885
1886 if ( image != NO_IMAGE )
1887 {
1888 dc.SetClippingRegion( item->GetX(), item->GetY(), image_w-2, total_h );
1889 m_imageListNormal->Draw( image, dc,
1890 item->GetX(),
1891 item->GetY() +((total_h > image_h)?((total_h-image_h)/2):0),
1892 wxIMAGELIST_DRAW_TRANSPARENT );
1893 dc.DestroyClippingRegion();
1894 }
1895
1896 dc.SetBackgroundMode(wxTRANSPARENT);
1897 int extraH = (total_h > text_h) ? (total_h - text_h)/2 : 0;
1898 dc.DrawText( item->GetText(),
1899 (wxCoord)(image_w + item->GetX()),
1900 (wxCoord)(item->GetY() + extraH));
1901
1902 // restore normal font
1903 dc.SetFont( m_normalFont );
1904}
1905
1906// Now y stands for the top of the item, whereas it used to stand for middle !
1907void wxGenericTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y )
1908{
1909 int x = level*m_indent;
1910 if (!HasFlag(wxTR_HIDE_ROOT))
1911 {
1912 x += m_indent;
1913 }
1914 else if (level == 0)
1915 {
1916 wxArrayGenericTreeItems& children = item->GetChildren();
1917 size_t n, count = children.Count();
1918 for (n = 0; n < count; ++n)
1919 PaintLevel(children[n], dc, 1, y);
1920 return;
1921 }
1922
1923 item->SetX(x+m_spacing);
1924 item->SetY(y);
1925
1926 int h = GetLineHeight(item);
1927 int y_top = y;
1928 int y_mid = y_top + (h>>1);
1929 y += h;
1930
1931 int exposed_x = dc.LogicalToDeviceX(0);
1932 int exposed_y = dc.LogicalToDeviceY(y_top);
1933
1934 if (IsExposed(exposed_x, exposed_y, 10000, h)) // 10000 = very much
1935 {
1936 if (item->HasPlus() && HasButtons()) // should the item show a button?
1937 {
1938 if (!HasFlag(wxTR_NO_LINES))
1939 {
1940 if (x > (signed)m_indent || HasFlag(wxTR_LINES_AT_ROOT))
1941 dc.DrawLine(x - m_indent, y_mid, x - 5, y_mid);
1942 dc.DrawLine(x + 5, y_mid, x + m_spacing, y_mid);
1943 }
1944
1945 if (m_imageListButtons != NULL)
1946 {
1947 // draw the image button here
1948 int image_h = 0, image_w = 0, image = wxCLOSED_BUTTON;
1949 if (item->IsExpanded()) image = wxOPEN_BUTTON;
1950 if (item->IsSelected())
1951 image += wxOPEN_BUTTON_SELECTED - wxOPEN_BUTTON;
1952 m_imageListButtons->GetSize(image, image_w, image_h);
1953 int xx = x - (image_w>>1);
1954 int yy = y_mid - (image_h>>1);
1955 dc.SetClippingRegion(xx, yy, image_w, image_h);
1956 m_imageListButtons->Draw(image, dc, xx, yy,
1957 wxIMAGELIST_DRAW_TRANSPARENT);
1958 dc.DestroyClippingRegion();
1959 }
1960 else if (HasFlag(wxTR_TWIST_BUTTONS))
1961 {
1962 // draw the twisty button here
1963 dc.SetPen(*wxBLACK_PEN);
1964 dc.SetBrush(*m_hilightBrush);
1965
1966 wxPoint button[3];
1967
1968 if (item->IsExpanded())
1969 {
1970 button[0].x = x-5;
1971 button[0].y = y_mid-2;
1972 button[1].x = x+5;
1973 button[1].y = y_mid-2;
1974 button[2].x = x;
1975 button[2].y = y_mid+3;
1976 }
1977 else
1978 {
1979 button[0].y = y_mid-5;
1980 button[0].x = x-2;
1981 button[1].y = y_mid+5;
1982 button[1].x = x-2;
1983 button[2].y = y_mid;
1984 button[2].x = x+3;
1985 }
1986 dc.DrawPolygon(3, button);
1987
1988 dc.SetPen(m_dottedPen);
1989 }
1990 else // if (HasFlag(wxTR_HAS_BUTTONS))
1991 {
1992 // draw the plus sign here
1993 dc.SetPen(*wxGREY_PEN);
1994 dc.SetBrush(*wxWHITE_BRUSH);
1995 dc.DrawRectangle(x-5, y_mid-4, 11, 9);
1996 dc.SetPen(*wxBLACK_PEN);
1997 dc.DrawLine(x-2, y_mid, x+3, y_mid);
1998 if (!item->IsExpanded())
1999 dc.DrawLine(x, y_mid-2, x, y_mid+3);
2000 dc.SetPen(m_dottedPen);
2001 }
2002 }
2003 else if (!HasFlag(wxTR_NO_LINES)) // no button; maybe a line?
2004 {
2005 // draw the horizontal line here
2006 int x_start = x;
2007 if (x > (signed)m_indent || HasFlag(wxTR_LINES_AT_ROOT))
2008 x_start -= m_indent;
2009 dc.DrawLine(x_start, y_mid, x + m_spacing, y_mid);
2010 }
2011
2012 wxPen *pen =
2013#ifndef __WXMAC__
2014 // don't draw rect outline if we already have the
2015 // background color under Mac
2016 (item->IsSelected() && m_hasFocus) ? wxBLACK_PEN :
2017#endif // !__WXMAC__
2018 wxTRANSPARENT_PEN;
2019
2020 wxColour colText;
2021 if ( item->IsSelected() )
2022 {
2023 colText = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
2024 }
2025 else
2026 {
2027 wxTreeItemAttr *attr = item->GetAttributes();
2028 if (attr && attr->HasTextColour())
2029 colText = attr->GetTextColour();
2030 else
2031 colText = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOWTEXT);
2032 }
2033
2034 // prepare to draw
2035 dc.SetTextForeground(colText);
2036 dc.SetPen(*pen);
2037
2038 // draw
2039 PaintItem(item, dc);
2040
2041 if (HasFlag(wxTR_ROW_LINES))
2042 {
2043 dc.SetPen(*wxWHITE_PEN);
2044 dc.DrawLine(0, y_top, 10000, y_top);
2045 dc.DrawLine(0, y, 10000, y);
2046 }
2047
2048 // restore DC objects
2049 dc.SetBrush(*wxWHITE_BRUSH);
2050 dc.SetPen(m_dottedPen);
2051 dc.SetTextForeground(*wxBLACK);
2052 }
2053
2054 if (item->IsExpanded())
2055 {
2056 wxArrayGenericTreeItems& children = item->GetChildren();
2057 int count = children.Count();
2058 if (count > 0)
2059 {
2060 int n = 0, oldY;
2061 ++level;
2062 do {
2063 oldY = y;
2064 PaintLevel(children[n], dc, level, y);
2065 } while (++n < count);
2066
2067 if (!HasFlag(wxTR_NO_LINES))
2068 {
2069 // draw line down to last child
2070 oldY += GetLineHeight(children[n-1])/2;
2071 if (HasButtons()) y_mid += 5;
2072 dc.DrawLine(x, y_mid, x, oldY);
2073 }
2074 }
2075 }
2076}
2077
2078void wxGenericTreeCtrl::DrawDropEffect(wxGenericTreeItem *item)
2079{
2080 if ( item )
2081 {
2082 if ( item->HasPlus() )
2083 {
2084 // it's a folder, indicate it by a border
2085 DrawBorder(item);
2086 }
2087 else
2088 {
2089 // draw a line under the drop target because the item will be
2090 // dropped there
2091 DrawLine(item, TRUE /* below */);
2092 }
2093
2094 SetCursor(wxCURSOR_BULLSEYE);
2095 }
2096 else
2097 {
2098 // can't drop here
2099 SetCursor(wxCURSOR_NO_ENTRY);
2100 }
2101}
2102
2103void wxGenericTreeCtrl::DrawBorder(const wxTreeItemId &item)
2104{
2105 wxCHECK_RET( item.IsOk(), _T("invalid item in wxGenericTreeCtrl::DrawLine") );
2106
2107 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2108
2109 wxClientDC dc(this);
2110 PrepareDC( dc );
2111 dc.SetLogicalFunction(wxINVERT);
2112 dc.SetBrush(*wxTRANSPARENT_BRUSH);
2113
2114 int w = i->GetWidth() + 2;
2115 int h = GetLineHeight(i) + 2;
2116
2117 dc.DrawRectangle( i->GetX() - 1, i->GetY() - 1, w, h);
2118}
2119
2120void wxGenericTreeCtrl::DrawLine(const wxTreeItemId &item, bool below)
2121{
2122 wxCHECK_RET( item.IsOk(), _T("invalid item in wxGenericTreeCtrl::DrawLine") );
2123
2124 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2125
2126 wxClientDC dc(this);
2127 PrepareDC( dc );
2128 dc.SetLogicalFunction(wxINVERT);
2129
2130 int x = i->GetX(),
2131 y = i->GetY();
2132 if ( below )
2133 {
2134 y += GetLineHeight(i) - 1;
2135 }
2136
2137 dc.DrawLine( x, y, x + i->GetWidth(), y);
2138}
2139
2140// -----------------------------------------------------------------------------
2141// wxWindows callbacks
2142// -----------------------------------------------------------------------------
2143
2144void wxGenericTreeCtrl::OnPaint( wxPaintEvent &WXUNUSED(event) )
2145{
2146 wxPaintDC dc(this);
2147 PrepareDC( dc );
2148
2149 if ( !m_anchor)
2150 return;
2151
2152 dc.SetFont( m_normalFont );
2153 dc.SetPen( m_dottedPen );
2154
2155 // this is now done dynamically
2156 //if(GetImageList() == NULL)
2157 // m_lineHeight = (int)(dc.GetCharHeight() + 4);
2158
2159 int y = 2;
2160 PaintLevel( m_anchor, dc, 0, y );
2161}
2162
2163void wxGenericTreeCtrl::OnSetFocus( wxFocusEvent &event )
2164{
2165 m_hasFocus = TRUE;
2166
2167 RefreshSelected();
2168
2169 event.Skip();
2170}
2171
2172void wxGenericTreeCtrl::OnKillFocus( wxFocusEvent &event )
2173{
2174 m_hasFocus = FALSE;
2175
2176 RefreshSelected();
2177
2178 event.Skip();
2179}
2180
2181void wxGenericTreeCtrl::OnChar( wxKeyEvent &event )
2182{
2183 wxTreeEvent te( wxEVT_COMMAND_TREE_KEY_DOWN, GetId() );
2184 te.m_code = (int)event.KeyCode();
2185 te.SetEventObject( this );
2186 if ( GetEventHandler()->ProcessEvent( te ) )
2187 {
2188 // intercepted by the user code
2189 return;
2190 }
2191
2192 if ( (m_current == 0) || (m_key_current == 0) )
2193 {
2194 event.Skip();
2195 return;
2196 }
2197
2198 // how should the selection work for this event?
2199 bool is_multiple, extended_select, unselect_others;
2200 EventFlagsToSelType(GetWindowStyleFlag(),
2201 event.ShiftDown(),
2202 event.ControlDown(),
2203 is_multiple, extended_select, unselect_others);
2204
2205 // + : Expand
2206 // - : Collaspe
2207 // * : Expand all/Collapse all
2208 // ' ' | return : activate
2209 // up : go up (not last children!)
2210 // down : go down
2211 // left : go to parent
2212 // right : open if parent and go next
2213 // home : go to root
2214 // end : go to last item without opening parents
2215 switch (event.KeyCode())
2216 {
2217 case '+':
2218 case WXK_ADD:
2219 if (m_current->HasPlus() && !IsExpanded(m_current))
2220 {
2221 Expand(m_current);
2222 }
2223 break;
2224
2225 case '*':
2226 case WXK_MULTIPLY:
2227 if ( !IsExpanded(m_current) )
2228 {
2229 // expand all
2230 ExpandAll(m_current);
2231 break;
2232 }
2233 //else: fall through to Collapse() it
2234
2235 case '-':
2236 case WXK_SUBTRACT:
2237 if (IsExpanded(m_current))
2238 {
2239 Collapse(m_current);
2240 }
2241 break;
2242
2243 case ' ':
2244 case WXK_RETURN:
2245 {
2246 wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() );
2247 event.m_item = (long) m_current;
2248 event.m_code = 0;
2249 event.SetEventObject( this );
2250 GetEventHandler()->ProcessEvent( event );
2251 }
2252 break;
2253
2254 // up goes to the previous sibling or to the last
2255 // of its children if it's expanded
2256 case WXK_UP:
2257 {
2258 wxTreeItemId prev = GetPrevSibling( m_key_current );
2259 if (!prev)
2260 {
2261 prev = GetParent( m_key_current );
2262 if ((prev == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT))
2263 {
2264 break; // don't go to root if it is hidden
2265 }
2266 if (prev)
2267 {
2268 long cookie = 0;
2269 wxTreeItemId current = m_key_current;
2270 // TODO: Huh? If we get here, we'd better be the first child of our parent. How else could it be?
2271 if (current == GetFirstChild( prev, cookie ))
2272 {
2273 // otherwise we return to where we came from
2274 SelectItem( prev, unselect_others, extended_select );
2275 m_key_current= (wxGenericTreeItem*) prev.m_pItem;
2276 EnsureVisible( prev );
2277 break;
2278 }
2279 }
2280 }
2281 if (prev)
2282 {
2283 while ( IsExpanded(prev) && HasChildren(prev) )
2284 {
2285 wxTreeItemId child = GetLastChild(prev);
2286 if ( child )
2287 {
2288 prev = child;
2289 }
2290 }
2291
2292 SelectItem( prev, unselect_others, extended_select );
2293 m_key_current=(wxGenericTreeItem*) prev.m_pItem;
2294 EnsureVisible( prev );
2295 }
2296 }
2297 break;
2298
2299 // left arrow goes to the parent
2300 case WXK_LEFT:
2301 {
2302 wxTreeItemId prev = GetParent( m_current );
2303 if ((prev == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT))
2304 {
2305 // don't go to root if it is hidden
2306 prev = GetPrevSibling( m_current );
2307 }
2308 if (prev)
2309 {
2310 EnsureVisible( prev );
2311 SelectItem( prev, unselect_others, extended_select );
2312 }
2313 }
2314 break;
2315
2316 case WXK_RIGHT:
2317 // this works the same as the down arrow except that we
2318 // also expand the item if it wasn't expanded yet
2319 Expand(m_current);
2320 // fall through
2321
2322 case WXK_DOWN:
2323 {
2324 if (IsExpanded(m_key_current) && HasChildren(m_key_current))
2325 {
2326 long cookie = 0;
2327 wxTreeItemId child = GetFirstChild( m_key_current, cookie );
2328 SelectItem( child, unselect_others, extended_select );
2329 m_key_current=(wxGenericTreeItem*) child.m_pItem;
2330 EnsureVisible( child );
2331 }
2332 else
2333 {
2334 wxTreeItemId next = GetNextSibling( m_key_current );
2335 if (!next)
2336 {
2337 wxTreeItemId current = m_key_current;
2338 while (current && !next)
2339 {
2340 current = GetParent( current );
2341 if (current) next = GetNextSibling( current );
2342 }
2343 }
2344 if (next)
2345 {
2346 SelectItem( next, unselect_others, extended_select );
2347 m_key_current=(wxGenericTreeItem*) next.m_pItem;
2348 EnsureVisible( next );
2349 }
2350 }
2351 }
2352 break;
2353
2354 // <End> selects the last visible tree item
2355 case WXK_END:
2356 {
2357 wxTreeItemId last = GetRootItem();
2358
2359 while ( last.IsOk() && IsExpanded(last) )
2360 {
2361 wxTreeItemId lastChild = GetLastChild(last);
2362
2363 // it may happen if the item was expanded but then all of
2364 // its children have been deleted - so IsExpanded() returned
2365 // TRUE, but GetLastChild() returned invalid item
2366 if ( !lastChild )
2367 break;
2368
2369 last = lastChild;
2370 }
2371
2372 if ( last.IsOk() )
2373 {
2374 EnsureVisible( last );
2375 SelectItem( last, unselect_others, extended_select );
2376 }
2377 }
2378 break;
2379
2380 // <Home> selects the root item
2381 case WXK_HOME:
2382 {
2383 wxTreeItemId prev = GetRootItem();
2384 if (!prev) break;
2385 if (HasFlag(wxTR_HIDE_ROOT))
2386 {
2387 long dummy;
2388 prev = GetFirstChild(prev, dummy);
2389 if (!prev) break;
2390 }
2391 EnsureVisible( prev );
2392 SelectItem( prev, unselect_others, extended_select );
2393 }
2394 break;
2395
2396 default:
2397 event.Skip();
2398 }
2399}
2400
2401wxTreeItemId wxGenericTreeCtrl::HitTest(const wxPoint& point, int& flags)
2402{
2403 // JACS: removed wxYieldIfNeeded() because it can cause the window
2404 // to be deleted from under us if a close window event is pending
2405
2406 int w, h;
2407 GetSize(&w, &h);
2408 flags=0;
2409 if (point.x<0) flags |= wxTREE_HITTEST_TOLEFT;
2410 if (point.x>w) flags |= wxTREE_HITTEST_TORIGHT;
2411 if (point.y<0) flags |= wxTREE_HITTEST_ABOVE;
2412 if (point.y>h) flags |= wxTREE_HITTEST_BELOW;
2413 if (flags) return wxTreeItemId();
2414
2415 if (m_anchor == NULL)
2416 {
2417 flags = wxTREE_HITTEST_NOWHERE;
2418 return wxTreeItemId();
2419 }
2420
2421 wxClientDC dc(this);
2422 PrepareDC(dc);
2423 wxCoord x = dc.DeviceToLogicalX( point.x );
2424 wxCoord y = dc.DeviceToLogicalY( point.y );
2425 wxGenericTreeItem *hit = m_anchor->HitTest(wxPoint(x, y),
2426 this,
2427 flags,
2428 0 );
2429 if (hit == NULL)
2430 {
2431 flags = wxTREE_HITTEST_NOWHERE;
2432 return wxTreeItemId();
2433 }
2434 return hit;
2435}
2436
2437// get the bounding rectangle of the item (or of its label only)
2438bool wxGenericTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
2439 wxRect& rect,
2440 bool WXUNUSED(textOnly)) const
2441{
2442 wxCHECK_MSG( item.IsOk(), FALSE, _T("invalid item in wxGenericTreeCtrl::GetBoundingRect") );
2443
2444 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2445
2446 int startX, startY;
2447 GetViewStart(& startX, & startY);
2448
2449 rect.x = i->GetX() - startX*PIXELS_PER_UNIT;
2450 rect.y = i->GetY() - startY*PIXELS_PER_UNIT;
2451 rect.width = i->GetWidth();
2452 //rect.height = i->GetHeight();
2453 rect.height = GetLineHeight(i);
2454
2455 return TRUE;
2456}
2457
2458/* **** */
2459
2460void wxGenericTreeCtrl::Edit( const wxTreeItemId& item )
2461{
2462 if (!item.IsOk()) return;
2463
2464 m_currentEdit = (wxGenericTreeItem*) item.m_pItem;
2465
2466 wxTreeEvent te( wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, GetId() );
2467 te.m_item = (long) m_currentEdit;
2468 te.SetEventObject( this );
2469 GetEventHandler()->ProcessEvent( te );
2470
2471 if (!te.IsAllowed()) return;
2472
2473 // We have to call this here because the label in
2474 // question might just have been added and no screen
2475 // update taken place.
2476 if (m_dirty) wxYieldIfNeeded();
2477
2478 wxString s = m_currentEdit->GetText();
2479 int x = m_currentEdit->GetX();
2480 int y = m_currentEdit->GetY();
2481 int w = m_currentEdit->GetWidth();
2482 int h = m_currentEdit->GetHeight();
2483
2484 int image_h = 0;
2485 int image_w = 0;
2486
2487 int image = m_currentEdit->GetCurrentImage();
2488 if ( image != NO_IMAGE )
2489 {
2490 if ( m_imageListNormal )
2491 {
2492 m_imageListNormal->GetSize( image, image_w, image_h );
2493 image_w += 4;
2494 }
2495 else
2496 {
2497 wxFAIL_MSG(_T("you must create an image list to use images!"));
2498 }
2499 }
2500 x += image_w;
2501 w -= image_w + 4; // I don't know why +4 is needed
2502
2503 wxClientDC dc(this);
2504 PrepareDC( dc );
2505 x = dc.LogicalToDeviceX( x );
2506 y = dc.LogicalToDeviceY( y );
2507
2508 wxTreeTextCtrl *text = new wxTreeTextCtrl(this, -1,
2509 &m_renameAccept,
2510 &m_renameRes,
2511 this,
2512 s,
2513 wxPoint(x-4,y-4),
2514 wxSize(w+11,h+8));
2515 text->SetFocus();
2516}
2517
2518void wxGenericTreeCtrl::OnRenameTimer()
2519{
2520 Edit( m_current );
2521}
2522
2523void wxGenericTreeCtrl::OnRenameAccept()
2524{
2525 // TODO if the validator fails this causes a crash
2526 wxTreeEvent le( wxEVT_COMMAND_TREE_END_LABEL_EDIT, GetId() );
2527 le.m_item = (long) m_currentEdit;
2528 le.SetEventObject( this );
2529 le.m_label = m_renameRes;
2530 GetEventHandler()->ProcessEvent( le );
2531
2532 if (!le.IsAllowed()) return;
2533
2534 SetItemText( m_currentEdit, m_renameRes );
2535}
2536
2537void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event )
2538{
2539 if ( !m_anchor ) return;
2540
2541 // we process left mouse up event (enables in-place edit), right down
2542 // (pass to the user code), left dbl click (activate item) and
2543 // dragging/moving events for items drag-and-drop
2544 if ( !(event.LeftDown() ||
2545 event.LeftUp() ||
2546 event.RightDown() ||
2547 event.LeftDClick() ||
2548 event.Dragging() ||
2549 ((event.Moving() || event.RightUp()) && m_isDragging)) )
2550 {
2551 event.Skip();
2552
2553 return;
2554 }
2555
2556 wxClientDC dc(this);
2557 PrepareDC(dc);
2558 wxCoord x = dc.DeviceToLogicalX( event.GetX() );
2559 wxCoord y = dc.DeviceToLogicalY( event.GetY() );
2560
2561 int flags = 0;
2562 wxGenericTreeItem *item = m_anchor->HitTest( wxPoint(x,y),
2563 this,
2564 flags,
2565 0 );
2566
2567 if ( event.Dragging() && !m_isDragging )
2568 {
2569 if (m_dragCount == 0)
2570 m_dragStart = wxPoint(x,y);
2571
2572 m_dragCount++;
2573
2574 if (m_dragCount != 3)
2575 {
2576 // wait until user drags a bit further...
2577 return;
2578 }
2579
2580 wxEventType command = event.RightIsDown()
2581 ? wxEVT_COMMAND_TREE_BEGIN_RDRAG
2582 : wxEVT_COMMAND_TREE_BEGIN_DRAG;
2583
2584 wxTreeEvent nevent( command, GetId() );
2585 nevent.m_item = (long) m_current;
2586 nevent.SetEventObject(this);
2587
2588 // by default the dragging is not supported, the user code must
2589 // explicitly allow the event for it to take place
2590 nevent.Veto();
2591
2592 if ( GetEventHandler()->ProcessEvent(nevent) && nevent.IsAllowed() )
2593 {
2594 // we're going to drag this item
2595 m_isDragging = TRUE;
2596
2597 // remember the old cursor because we will change it while
2598 // dragging
2599 m_oldCursor = m_cursor;
2600
2601 // in a single selection control, hide the selection temporarily
2602 if ( !(GetWindowStyleFlag() & wxTR_MULTIPLE) )
2603 {
2604 m_oldSelection = (wxGenericTreeItem*) GetSelection().m_pItem;
2605
2606 if ( m_oldSelection )
2607 {
2608 m_oldSelection->SetHilight(FALSE);
2609 RefreshLine(m_oldSelection);
2610 }
2611 }
2612
2613 CaptureMouse();
2614 }
2615 }
2616 else if ( event.Moving() )
2617 {
2618 if ( item != m_dropTarget )
2619 {
2620 // unhighlight the previous drop target
2621 DrawDropEffect(m_dropTarget);
2622
2623 m_dropTarget = item;
2624
2625 // highlight the current drop target if any
2626 DrawDropEffect(m_dropTarget);
2627
2628 wxYieldIfNeeded();
2629 }
2630 }
2631 else if ( (event.LeftUp() || event.RightUp()) && m_isDragging )
2632 {
2633 // erase the highlighting
2634 DrawDropEffect(m_dropTarget);
2635
2636 if ( m_oldSelection )
2637 {
2638 m_oldSelection->SetHilight(TRUE);
2639 RefreshLine(m_oldSelection);
2640 m_oldSelection = (wxGenericTreeItem *)NULL;
2641 }
2642
2643 // generate the drag end event
2644 wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, GetId());
2645
2646 event.m_item = (long) item;
2647 event.m_pointDrag = wxPoint(x, y);
2648 event.SetEventObject(this);
2649
2650 (void)GetEventHandler()->ProcessEvent(event);
2651
2652 m_isDragging = FALSE;
2653 m_dropTarget = (wxGenericTreeItem *)NULL;
2654
2655 ReleaseMouse();
2656
2657 SetCursor(m_oldCursor);
2658
2659 wxYieldIfNeeded();
2660 }
2661 else
2662 {
2663 // here we process only the messages which happen on tree items
2664
2665 m_dragCount = 0;
2666
2667 if (item == NULL) return; /* we hit the blank area */
2668
2669 if ( event.RightDown() )
2670 {
2671 wxTreeEvent nevent(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, GetId());
2672 nevent.m_item = (long) item;
2673 nevent.m_code = 0;
2674 CalcScrolledPosition(x, y,
2675 &nevent.m_pointDrag.x,
2676 &nevent.m_pointDrag.y);
2677 nevent.SetEventObject(this);
2678 GetEventHandler()->ProcessEvent(nevent);
2679 }
2680 else if ( event.LeftUp() )
2681 {
2682 if ( m_lastOnSame )
2683 {
2684 if ( (item == m_current) &&
2685 (flags & wxTREE_HITTEST_ONITEMLABEL) &&
2686 HasFlag(wxTR_EDIT_LABELS) )
2687 {
2688 if ( m_renameTimer->IsRunning() )
2689 m_renameTimer->Stop();
2690
2691 m_renameTimer->Start( 100, TRUE );
2692 }
2693
2694 m_lastOnSame = FALSE;
2695 }
2696 }
2697 else // !RightDown() && !LeftUp() ==> LeftDown() || LeftDClick()
2698 {
2699 if ( event.LeftDown() )
2700 {
2701 m_lastOnSame = item == m_current;
2702 }
2703
2704 if ( flags & wxTREE_HITTEST_ONITEMBUTTON )
2705 {
2706 // only toggle the item for a single click, double click on
2707 // the button doesn't do anything (it toggles the item twice)
2708 if ( event.LeftDown() )
2709 {
2710 Toggle( item );
2711 }
2712
2713 // don't select the item if the button was clicked
2714 return;
2715 }
2716
2717 // how should the selection work for this event?
2718 bool is_multiple, extended_select, unselect_others;
2719 EventFlagsToSelType(GetWindowStyleFlag(),
2720 event.ShiftDown(),
2721 event.ControlDown(),
2722 is_multiple, extended_select, unselect_others);
2723
2724 SelectItem(item, unselect_others, extended_select);
2725
2726 // For some reason, Windows isn't recognizing a left double-click,
2727 // so we need to simulate it here. Allow 200 milliseconds for now.
2728 if ( event.LeftDClick() )
2729 {
2730 // double clicking should not start editing the item label
2731 m_renameTimer->Stop();
2732 m_lastOnSame = FALSE;
2733
2734 // send activate event first
2735 wxTreeEvent nevent( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() );
2736 nevent.m_item = (long) item;
2737 nevent.m_code = 0;
2738 CalcScrolledPosition(x, y,
2739 &nevent.m_pointDrag.x,
2740 &nevent.m_pointDrag.y);
2741 nevent.SetEventObject( this );
2742 if ( !GetEventHandler()->ProcessEvent( nevent ) )
2743 {
2744 // if the user code didn't process the activate event,
2745 // handle it ourselves by toggling the item when it is
2746 // double clicked
2747 if ( item->HasPlus() )
2748 {
2749 Toggle(item);
2750 }
2751 }
2752 }
2753 }
2754 }
2755}
2756
2757void wxGenericTreeCtrl::OnIdle( wxIdleEvent &WXUNUSED(event) )
2758{
2759 /* after all changes have been done to the tree control,
2760 * we actually redraw the tree when everything is over */
2761
2762 if (!m_dirty) return;
2763
2764 m_dirty = FALSE;
2765
2766 CalculatePositions();
2767 Refresh();
2768 AdjustMyScrollbars();
2769}
2770
2771void wxGenericTreeCtrl::CalculateSize( wxGenericTreeItem *item, wxDC &dc )
2772{
2773 wxCoord text_w = 0;
2774 wxCoord text_h = 0;
2775
2776 if (item->IsBold())
2777 dc.SetFont(m_boldFont);
2778
2779 dc.GetTextExtent( item->GetText(), &text_w, &text_h );
2780 text_h+=2;
2781
2782 // restore normal font
2783 dc.SetFont( m_normalFont );
2784
2785 int image_h = 0;
2786 int image_w = 0;
2787 int image = item->GetCurrentImage();
2788 if ( image != NO_IMAGE )
2789 {
2790 if ( m_imageListNormal )
2791 {
2792 m_imageListNormal->GetSize( image, image_w, image_h );
2793 image_w += 4;
2794 }
2795 }
2796
2797 int total_h = (image_h > text_h) ? image_h : text_h;
2798
2799 if (total_h < 30)
2800 total_h += 2; // at least 2 pixels
2801 else
2802 total_h += total_h/10; // otherwise 10% extra spacing
2803
2804 item->SetHeight(total_h);
2805 if (total_h>m_lineHeight)
2806 m_lineHeight=total_h;
2807
2808 item->SetWidth(image_w+text_w+2);
2809}
2810
2811// -----------------------------------------------------------------------------
2812// for developper : y is now the top of the level
2813// not the middle of it !
2814void wxGenericTreeCtrl::CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y )
2815{
2816 int x = level*m_indent;
2817 if (!HasFlag(wxTR_HIDE_ROOT))
2818 {
2819 x += m_indent;
2820 }
2821 else if (level == 0)
2822 {
2823 // a hidden root is not evaluated, but its
2824 // children are always calculated
2825 goto Recurse;
2826 }
2827
2828 CalculateSize( item, dc );
2829
2830 // set its position
2831 item->SetX( x+m_spacing );
2832 item->SetY( y );
2833 y += GetLineHeight(item);
2834
2835 if ( !item->IsExpanded() )
2836 {
2837 // we don't need to calculate collapsed branches
2838 return;
2839 }
2840
2841 Recurse:
2842 wxArrayGenericTreeItems& children = item->GetChildren();
2843 size_t n, count = children.Count();
2844 ++level;
2845 for (n = 0; n < count; ++n )
2846 CalculateLevel( children[n], dc, level, y ); // recurse
2847}
2848
2849void wxGenericTreeCtrl::CalculatePositions()
2850{
2851 if ( !m_anchor ) return;
2852
2853 wxClientDC dc(this);
2854 PrepareDC( dc );
2855
2856 dc.SetFont( m_normalFont );
2857
2858 dc.SetPen( m_dottedPen );
2859 //if(GetImageList() == NULL)
2860 // m_lineHeight = (int)(dc.GetCharHeight() + 4);
2861
2862 int y = 2;
2863 CalculateLevel( m_anchor, dc, 0, y ); // start recursion
2864}
2865
2866void wxGenericTreeCtrl::RefreshSubtree(wxGenericTreeItem *item)
2867{
2868 if (m_dirty) return;
2869
2870 wxClientDC dc(this);
2871 PrepareDC(dc);
2872
2873 int cw = 0;
2874 int ch = 0;
2875 GetClientSize( &cw, &ch );
2876
2877 wxRect rect;
2878 rect.x = dc.LogicalToDeviceX( 0 );
2879 rect.width = cw;
2880 rect.y = dc.LogicalToDeviceY( item->GetY() );
2881 rect.height = ch;
2882
2883 Refresh( TRUE, &rect );
2884
2885 AdjustMyScrollbars();
2886}
2887
2888void wxGenericTreeCtrl::RefreshLine( wxGenericTreeItem *item )
2889{
2890 if (m_dirty) return;
2891
2892 wxClientDC dc(this);
2893 PrepareDC( dc );
2894
2895 int cw = 0;
2896 int ch = 0;
2897 GetClientSize( &cw, &ch );
2898
2899 wxRect rect;
2900 rect.x = dc.LogicalToDeviceX( 0 );
2901 rect.y = dc.LogicalToDeviceY( item->GetY() );
2902 rect.width = cw;
2903 rect.height = GetLineHeight(item); //dc.GetCharHeight() + 6;
2904
2905 Refresh( TRUE, &rect );
2906}
2907
2908void wxGenericTreeCtrl::RefreshSelected()
2909{
2910 // TODO: this is awfully inefficient, we should keep the list of all
2911 // selected items internally, should be much faster
2912 if ( m_anchor )
2913 RefreshSelectedUnder(m_anchor);
2914}
2915
2916void wxGenericTreeCtrl::RefreshSelectedUnder(wxGenericTreeItem *item)
2917{
2918 if ( item->IsSelected() )
2919 RefreshLine(item);
2920
2921 const wxArrayGenericTreeItems& children = item->GetChildren();
2922 size_t count = children.GetCount();
2923 for ( size_t n = 0; n < count; n++ )
2924 {
2925 RefreshSelectedUnder(children[n]);
2926 }
2927}
2928
2929#endif // wxUSE_TREECTRL
wxWidgets (Impactor)