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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// Aqua arrows
60// ----------------------------------------------------------------------------
61
62/* XPM */
63static const char *aqua_arrow_right[] = {
64/* columns rows colors chars-per-pixel */
65"13 11 4 1",
66" c None",
67"b c #C0C0C0",
68"c c #707070",
69"d c #A0A0A0",
70/* pixels */
71" b ",
72" ddb ",
73" cccdb ",
74" cccccd ",
75" ccccccdb ",
76" ccccccccd",
77" ccccccdb ",
78" cccccb ",
79" cccdb ",
80" ddb ",
81" b "
82};
83
84/* XPM */
85static const char *aqua_arrow_down[] = {
86/* columns rows colors chars-per-pixel */
87"13 11 4 1",
88" c None",
89"b c #C0C0C0",
90"c c #707070",
91"d c #A0A0A0",
92/* pixels */
93" ",
94" ",
95" bdcccccccdb ",
96" dcccccccd ",
97" bcccccccb ",
98" dcccccd ",
99" bcccccb ",
100" bcccd ",
101" dcd ",
102" bcb ",
103" d "
104};
105
106// -----------------------------------------------------------------------------
107// private classes
108// -----------------------------------------------------------------------------
109
110// timer used for enabling in-place edit
111class WXDLLEXPORT wxTreeRenameTimer: public wxTimer
112{
113public:
114 wxTreeRenameTimer( wxGenericTreeCtrl *owner );
115
116 void Notify();
117
118private:
119 wxGenericTreeCtrl *m_owner;
120};
121
122// control used for in-place edit
123class WXDLLEXPORT wxTreeTextCtrl: public wxTextCtrl
124{
125public:
126 wxTreeTextCtrl( wxWindow *parent,
127 const wxWindowID id,
128 bool *accept,
129 wxString *res,
130 wxGenericTreeCtrl *owner,
131 const wxString &value = wxEmptyString,
132 const wxPoint &pos = wxDefaultPosition,
133 const wxSize &size = wxDefaultSize,
134 int style = wxSIMPLE_BORDER,
135 const wxValidator& validator = wxDefaultValidator,
136 const wxString &name = wxTextCtrlNameStr );
137
138 void OnChar( wxKeyEvent &event );
139 void OnKeyUp( wxKeyEvent &event );
140 void OnKillFocus( wxFocusEvent &event );
141
142private:
143 bool *m_accept;
144 wxString *m_res;
145 wxGenericTreeCtrl *m_owner;
146 wxString m_startValue;
147 bool m_finished;
148
149 DECLARE_EVENT_TABLE()
150};
151
152// a tree item
153class WXDLLEXPORT wxGenericTreeItem
154{
155public:
156 // ctors & dtor
157 wxGenericTreeItem() { m_data = NULL; }
158 wxGenericTreeItem( wxGenericTreeItem *parent,
159 const wxString& text,
160 int image,
161 int selImage,
162 wxTreeItemData *data );
163
164 ~wxGenericTreeItem();
165
166 // trivial accessors
167 wxArrayGenericTreeItems& GetChildren() { return m_children; }
168
169 const wxString& GetText() const { return m_text; }
170 int GetImage(wxTreeItemIcon which = wxTreeItemIcon_Normal) const
171 { return m_images[which]; }
172 wxTreeItemData *GetData() const { return m_data; }
173
174 // returns the current image for the item (depending on its
175 // selected/expanded/whatever state)
176 int GetCurrentImage() const;
177
178 void SetText( const wxString &text );
179 void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
180 void SetData(wxTreeItemData *data) { m_data = data; }
181
182 void SetHasPlus(bool has = TRUE) { m_hasPlus = has; }
183
184 void SetBold(bool bold) { m_isBold = bold; }
185
186 int GetX() const { return m_x; }
187 int GetY() const { return m_y; }
188
189 void SetX(int x) { m_x = x; }
190 void SetY(int y) { m_y = y; }
191
192 int GetHeight() const { return m_height; }
193 int GetWidth() const { return m_width; }
194
195 void SetHeight(int h) { m_height = h; }
196 void SetWidth(int w) { m_width = w; }
197
198 wxGenericTreeItem *GetParent() const { return m_parent; }
199
200 // operations
201 // deletes all children notifying the treectrl about it if !NULL
202 // pointer given
203 void DeleteChildren(wxGenericTreeCtrl *tree = NULL);
204
205 // get count of all children (and grand children if 'recursively')
206 size_t GetChildrenCount(bool recursively = TRUE) const;
207
208 void Insert(wxGenericTreeItem *child, size_t index)
209 { m_children.Insert(child, index); }
210
211 void GetSize( int &x, int &y, const wxGenericTreeCtrl* );
212
213 // return the item at given position (or NULL if no item), onButton is
214 // TRUE if the point belongs to the item's button, otherwise it lies
215 // on the button's label
216 wxGenericTreeItem *HitTest( const wxPoint& point,
217 const wxGenericTreeCtrl *,
218 int &flags,
219 int level );
220
221 void Expand() { m_isCollapsed = FALSE; }
222 void Collapse() { m_isCollapsed = TRUE; }
223
224 void SetHilight( bool set = TRUE ) { m_hasHilight = set; }
225
226 // status inquiries
227 bool HasChildren() const { return !m_children.IsEmpty(); }
228 bool IsSelected() const { return m_hasHilight != 0; }
229 bool IsExpanded() const { return !m_isCollapsed; }
230 bool HasPlus() const { return m_hasPlus || HasChildren(); }
231 bool IsBold() const { return m_isBold != 0; }
232
233 // attributes
234 // get them - may be NULL
235 wxTreeItemAttr *GetAttributes() const { return m_attr; }
236 // get them ensuring that the pointer is not NULL
237 wxTreeItemAttr& Attr()
238 {
239 if ( !m_attr )
240 {
241 m_attr = new wxTreeItemAttr;
242 m_ownsAttr = TRUE;
243 }
244 return *m_attr;
245 }
246 // set them
247 void SetAttributes(wxTreeItemAttr *attr)
248 {
249 if ( m_ownsAttr ) delete m_attr;
250 m_attr = attr;
251 m_ownsAttr = FALSE;
252 }
253 // set them and delete when done
254 void AssignAttributes(wxTreeItemAttr *attr)
255 {
256 SetAttributes(attr);
257 m_ownsAttr = TRUE;
258 }
259
260private:
261 // since there can be very many of these, we save size by chosing
262 // the smallest representation for the elements and by ordering
263 // the members to avoid padding.
264 wxString m_text; // label to be rendered for item
265
266 wxTreeItemData *m_data; // user-provided data
267
268 wxArrayGenericTreeItems m_children; // list of children
269 wxGenericTreeItem *m_parent; // parent of this item
270
271 wxTreeItemAttr *m_attr; // attributes???
272
273 // tree ctrl images for the normal, selected, expanded and
274 // expanded+selected states
275 short m_images[wxTreeItemIcon_Max];
276
277 wxCoord m_x; // (virtual) offset from top
278 short m_y; // (virtual) offset from left
279 short m_width; // width of this item
280 unsigned char m_height; // height of this item
281
282 // use bitfields to save size
283 int m_isCollapsed :1;
284 int m_hasHilight :1; // same as focused
285 int m_hasPlus :1; // used for item which doesn't have
286 // children but has a [+] button
287 int m_isBold :1; // render the label in bold font
288 int m_ownsAttr :1; // delete attribute when done
289};
290
291// =============================================================================
292// implementation
293// =============================================================================
294
295// ----------------------------------------------------------------------------
296// private functions
297// ----------------------------------------------------------------------------
298
299// translate the key or mouse event flags to the type of selection we're
300// dealing with
301static void EventFlagsToSelType(long style,
302 bool shiftDown,
303 bool ctrlDown,
304 bool &is_multiple,
305 bool &extended_select,
306 bool &unselect_others)
307{
308 is_multiple = (style & wxTR_MULTIPLE) != 0;
309 extended_select = shiftDown && is_multiple;
310 unselect_others = !(extended_select || (ctrlDown && is_multiple));
311}
312
313// -----------------------------------------------------------------------------
314// wxTreeRenameTimer (internal)
315// -----------------------------------------------------------------------------
316
317wxTreeRenameTimer::wxTreeRenameTimer( wxGenericTreeCtrl *owner )
318{
319 m_owner = owner;
320}
321
322void wxTreeRenameTimer::Notify()
323{
324 m_owner->OnRenameTimer();
325}
326
327//-----------------------------------------------------------------------------
328// wxTreeTextCtrl (internal)
329//-----------------------------------------------------------------------------
330
331BEGIN_EVENT_TABLE(wxTreeTextCtrl,wxTextCtrl)
332 EVT_CHAR (wxTreeTextCtrl::OnChar)
333 EVT_KEY_UP (wxTreeTextCtrl::OnKeyUp)
334 EVT_KILL_FOCUS (wxTreeTextCtrl::OnKillFocus)
335END_EVENT_TABLE()
336
337wxTreeTextCtrl::wxTreeTextCtrl( wxWindow *parent,
338 const wxWindowID id,
339 bool *accept,
340 wxString *res,
341 wxGenericTreeCtrl *owner,
342 const wxString &value,
343 const wxPoint &pos,
344 const wxSize &size,
345 int style,
346 const wxValidator& validator,
347 const wxString &name )
348 : wxTextCtrl( parent, id, value, pos, size, style, validator, name )
349{
350 m_res = res;
351 m_accept = accept;
352 m_owner = owner;
353 (*m_accept) = FALSE;
354 (*m_res) = wxEmptyString;
355 m_startValue = value;
356 m_finished = FALSE;
357}
358
359void wxTreeTextCtrl::OnChar( wxKeyEvent &event )
360{
361 if (event.m_keyCode == WXK_RETURN)
362 {
363 (*m_accept) = TRUE;
364 (*m_res) = GetValue();
365
366 if ((*m_res) != m_startValue)
367 m_owner->OnRenameAccept();
368
369 if (!wxPendingDelete.Member(this))
370 wxPendingDelete.Append(this);
371
372 m_finished = TRUE;
373 m_owner->SetFocus(); // This doesn't work. TODO.
374
375 return;
376 }
377 if (event.m_keyCode == WXK_ESCAPE)
378 {
379 (*m_accept) = FALSE;
380 (*m_res) = "";
381
382 if (!wxPendingDelete.Member(this))
383 wxPendingDelete.Append(this);
384
385 m_finished = TRUE;
386 m_owner->SetFocus(); // This doesn't work. TODO.
387
388 return;
389 }
390 event.Skip();
391}
392
393void wxTreeTextCtrl::OnKeyUp( wxKeyEvent &event )
394{
395 if (m_finished)
396 {
397 event.Skip();
398 return;
399 }
400
401 // auto-grow the textctrl:
402 wxSize parentSize = m_owner->GetSize();
403 wxPoint myPos = GetPosition();
404 wxSize mySize = GetSize();
405 int sx, sy;
406 GetTextExtent(GetValue() + _T("M"), &sx, &sy);
407 if (myPos.x + sx > parentSize.x) sx = parentSize.x - myPos.x;
408 if (mySize.x > sx) sx = mySize.x;
409 SetSize(sx, -1);
410
411 event.Skip();
412}
413
414void wxTreeTextCtrl::OnKillFocus( wxFocusEvent &event )
415{
416 if (m_finished)
417 {
418 event.Skip();
419 return;
420 }
421
422 if (!wxPendingDelete.Member(this))
423 wxPendingDelete.Append(this);
424
425 (*m_accept) = TRUE;
426 (*m_res) = GetValue();
427
428 if ((*m_res) != m_startValue)
429 m_owner->OnRenameAccept();
430}
431
432// -----------------------------------------------------------------------------
433// wxGenericTreeItem
434// -----------------------------------------------------------------------------
435
436wxGenericTreeItem::wxGenericTreeItem(wxGenericTreeItem *parent,
437 const wxString& text,
438 int image, int selImage,
439 wxTreeItemData *data)
440 : m_text(text)
441{
442 m_images[wxTreeItemIcon_Normal] = image;
443 m_images[wxTreeItemIcon_Selected] = selImage;
444 m_images[wxTreeItemIcon_Expanded] = NO_IMAGE;
445 m_images[wxTreeItemIcon_SelectedExpanded] = NO_IMAGE;
446
447 m_data = data;
448 m_x = m_y = 0;
449
450 m_isCollapsed = TRUE;
451 m_hasHilight = FALSE;
452 m_hasPlus = FALSE;
453 m_isBold = FALSE;
454
455 m_parent = parent;
456
457 m_attr = (wxTreeItemAttr *)NULL;
458 m_ownsAttr = FALSE;
459
460 // We don't know the height here yet.
461 m_width = 0;
462 m_height = 0;
463}
464
465wxGenericTreeItem::~wxGenericTreeItem()
466{
467 delete m_data;
468
469 if (m_ownsAttr) delete m_attr;
470
471 wxASSERT_MSG( m_children.IsEmpty(),
472 wxT("please call DeleteChildren() before deleting the item") );
473}
474
475void wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl *tree)
476{
477 size_t count = m_children.Count();
478 for ( size_t n = 0; n < count; n++ )
479 {
480 wxGenericTreeItem *child = m_children[n];
481 if (tree)
482 tree->SendDeleteEvent(child);
483
484 child->DeleteChildren(tree);
485 delete child;
486 }
487
488 m_children.Empty();
489}
490
491void wxGenericTreeItem::SetText( const wxString &text )
492{
493 m_text = text;
494}
495
496size_t wxGenericTreeItem::GetChildrenCount(bool recursively) const
497{
498 size_t count = m_children.Count();
499 if ( !recursively )
500 return count;
501
502 size_t total = count;
503 for (size_t n = 0; n < count; ++n)
504 {
505 total += m_children[n]->GetChildrenCount();
506 }
507
508 return total;
509}
510
511void wxGenericTreeItem::GetSize( int &x, int &y,
512 const wxGenericTreeCtrl *theButton )
513{
514 int bottomY=m_y+theButton->GetLineHeight(this);
515 if ( y < bottomY ) y = bottomY;
516 int width = m_x + m_width;
517 if ( x < width ) x = width;
518
519 if (IsExpanded())
520 {
521 size_t count = m_children.Count();
522 for ( size_t n = 0; n < count; ++n )
523 {
524 m_children[n]->GetSize( x, y, theButton );
525 }
526 }
527}
528
529wxGenericTreeItem *wxGenericTreeItem::HitTest(const wxPoint& point,
530 const wxGenericTreeCtrl *theCtrl,
531 int &flags,
532 int level)
533{
534 // for a hidden root node, don't evaluate it, but do evaluate children
535 if ( !(level == 0 && theCtrl->HasFlag(wxTR_HIDE_ROOT)) )
536 {
537 // evaluate the item
538 int h = theCtrl->GetLineHeight(this);
539 if ((point.y > m_y) && (point.y < m_y + h))
540 {
541 int y_mid = m_y + h/2;
542 if (point.y < y_mid )
543 flags |= wxTREE_HITTEST_ONITEMUPPERPART;
544 else
545 flags |= wxTREE_HITTEST_ONITEMLOWERPART;
546
547 // 5 is the size of the plus sign
548 int xCross = m_x - theCtrl->GetSpacing();
549 if ((point.x > xCross-5) && (point.x < xCross+5) &&
550 (point.y > y_mid-5) && (point.y < y_mid+5) &&
551 HasPlus() && theCtrl->HasButtons() )
552 {
553 flags |= wxTREE_HITTEST_ONITEMBUTTON;
554 return this;
555 }
556
557 if ((point.x >= m_x) && (point.x <= m_x+m_width))
558 {
559 int image_w = -1;
560 int image_h;
561
562 // assuming every image (normal and selected) has the same size!
563 if ( (GetImage() != NO_IMAGE) && theCtrl->m_imageListNormal )
564 theCtrl->m_imageListNormal->GetSize(GetImage(),
565 image_w, image_h);
566
567 if ((image_w != -1) && (point.x <= m_x + image_w + 1))
568 flags |= wxTREE_HITTEST_ONITEMICON;
569 else
570 flags |= wxTREE_HITTEST_ONITEMLABEL;
571
572 return this;
573 }
574
575 if (point.x < m_x)
576 flags |= wxTREE_HITTEST_ONITEMINDENT;
577 if (point.x > m_x+m_width)
578 flags |= wxTREE_HITTEST_ONITEMRIGHT;
579
580 return this;
581 }
582
583 // if children are expanded, fall through to evaluate them
584 if (m_isCollapsed) return (wxGenericTreeItem*) NULL;
585 }
586
587 // evaluate children
588 size_t count = m_children.Count();
589 for ( size_t n = 0; n < count; n++ )
590 {
591 wxGenericTreeItem *res = m_children[n]->HitTest( point,
592 theCtrl,
593 flags,
594 level + 1 );
595 if ( res != NULL )
596 return res;
597 }
598
599 return (wxGenericTreeItem*) NULL;
600}
601
602int wxGenericTreeItem::GetCurrentImage() const
603{
604 int image = NO_IMAGE;
605 if ( IsExpanded() )
606 {
607 if ( IsSelected() )
608 {
609 image = GetImage(wxTreeItemIcon_SelectedExpanded);
610 }
611
612 if ( image == NO_IMAGE )
613 {
614 // we usually fall back to the normal item, but try just the
615 // expanded one (and not selected) first in this case
616 image = GetImage(wxTreeItemIcon_Expanded);
617 }
618 }
619 else // not expanded
620 {
621 if ( IsSelected() )
622 image = GetImage(wxTreeItemIcon_Selected);
623 }
624
625 // maybe it doesn't have the specific image we want,
626 // try the default one instead
627 if ( image == NO_IMAGE ) image = GetImage();
628
629 return image;
630}
631
632// -----------------------------------------------------------------------------
633// wxGenericTreeCtrl implementation
634// -----------------------------------------------------------------------------
635
636IMPLEMENT_DYNAMIC_CLASS(wxGenericTreeCtrl, wxScrolledWindow)
637
638BEGIN_EVENT_TABLE(wxGenericTreeCtrl,wxScrolledWindow)
639 EVT_PAINT (wxGenericTreeCtrl::OnPaint)
640 EVT_MOUSE_EVENTS (wxGenericTreeCtrl::OnMouse)
641 EVT_CHAR (wxGenericTreeCtrl::OnChar)
642 EVT_SET_FOCUS (wxGenericTreeCtrl::OnSetFocus)
643 EVT_KILL_FOCUS (wxGenericTreeCtrl::OnKillFocus)
644 EVT_IDLE (wxGenericTreeCtrl::OnIdle)
645END_EVENT_TABLE()
646
647#if !defined(__WXMSW__) || defined(__WIN16__) || defined(__WXUNIVERSAL__)
648/*
649 * wxTreeCtrl has to be a real class or we have problems with
650 * the run-time information.
651 */
652
653IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxGenericTreeCtrl)
654#endif
655
656// -----------------------------------------------------------------------------
657// construction/destruction
658// -----------------------------------------------------------------------------
659
660void wxGenericTreeCtrl::Init()
661{
662 m_current = m_key_current = m_anchor = (wxGenericTreeItem *) NULL;
663 m_hasFocus = FALSE;
664 m_dirty = FALSE;
665
666 m_lineHeight = 10;
667 m_indent = 15;
668 m_spacing = 18;
669
670 m_hilightBrush = new wxBrush
671 (
672 wxSystemSettings::GetColour
673 (
674 wxSYS_COLOUR_HIGHLIGHT
675 ),
676 wxSOLID
677 );
678
679 m_hilightUnfocusedBrush = new wxBrush
680 (
681 wxSystemSettings::GetColour
682 (
683 wxSYS_COLOUR_BTNSHADOW
684 ),
685 wxSOLID
686 );
687
688 m_imageListNormal = m_imageListButtons =
689 m_imageListState = (wxImageList *) NULL;
690 m_ownsImageListNormal = m_ownsImageListButtons =
691 m_ownsImageListState = FALSE;
692
693 m_dragCount = 0;
694 m_isDragging = FALSE;
695 m_dropTarget = m_oldSelection = (wxGenericTreeItem *)NULL;
696
697 m_renameTimer = new wxTreeRenameTimer( this );
698 m_lastOnSame = FALSE;
699
700 m_normalFont = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
701 m_boldFont = wxFont( m_normalFont.GetPointSize(),
702 m_normalFont.GetFamily(),
703 m_normalFont.GetStyle(),
704 wxBOLD,
705 m_normalFont.GetUnderlined());
706}
707
708bool wxGenericTreeCtrl::Create(wxWindow *parent,
709 wxWindowID id,
710 const wxPoint& pos,
711 const wxSize& size,
712 long style,
713 const wxValidator &validator,
714 const wxString& name )
715{
716#ifdef __WXMAC__
717 int major,minor;
718 wxGetOsVersion( &major, &minor );
719
720 if (style & wxTR_HAS_BUTTONS) style |= wxTR_MAC_BUTTONS;
721 if (style & wxTR_HAS_BUTTONS) style &= ~wxTR_HAS_BUTTONS;
722 style &= ~wxTR_LINES_AT_ROOT;
723 style |= wxTR_NO_LINES;
724 if (major < 10)
725 style |= wxTR_ROW_LINES;
726 if (major >= 10)
727 style |= wxTR_AQUA_BUTTONS;
728#endif
729
730 if (style & wxTR_AQUA_BUTTONS)
731 {
732 m_arrowRight = new wxBitmap( aqua_arrow_right );
733 m_arrowDown = new wxBitmap( aqua_arrow_down );
734 }
735 else
736 {
737 m_arrowRight = NULL;
738 m_arrowDown = NULL;
739 }
740
741 wxScrolledWindow::Create( parent, id, pos, size,
742 style|wxHSCROLL|wxVSCROLL, name );
743
744 // If the tree display has no buttons, but does have
745 // connecting lines, we can use a narrower layout.
746 // It may not be a good idea to force this...
747 if (!HasButtons() && !HasFlag(wxTR_NO_LINES))
748 {
749 m_indent= 10;
750 m_spacing = 10;
751 }
752
753#if wxUSE_VALIDATORS
754 SetValidator( validator );
755#endif
756
757 SetForegroundColour( wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) );
758 SetBackgroundColour( wxSystemSettings::GetColour(wxSYS_COLOUR_LISTBOX) );
759
760// m_dottedPen = wxPen( "grey", 0, wxDOT ); too slow under XFree86
761 m_dottedPen = wxPen( wxT("grey"), 0, 0 );
762
763 return TRUE;
764}
765
766wxGenericTreeCtrl::~wxGenericTreeCtrl()
767{
768 delete m_hilightBrush;
769 delete m_hilightUnfocusedBrush;
770
771 if (m_arrowRight) delete m_arrowRight;
772 if (m_arrowDown) delete m_arrowDown;
773
774 DeleteAllItems();
775
776 delete m_renameTimer;
777 if (m_ownsImageListNormal) delete m_imageListNormal;
778 if (m_ownsImageListState) delete m_imageListState;
779 if (m_ownsImageListButtons) delete m_imageListButtons;
780}
781
782// -----------------------------------------------------------------------------
783// accessors
784// -----------------------------------------------------------------------------
785
786size_t wxGenericTreeCtrl::GetCount() const
787{
788 return m_anchor == NULL ? 0u : m_anchor->GetChildrenCount();
789}
790
791void wxGenericTreeCtrl::SetIndent(unsigned int indent)
792{
793 m_indent = (unsigned short) indent;
794 m_dirty = TRUE;
795}
796
797void wxGenericTreeCtrl::SetSpacing(unsigned int spacing)
798{
799 m_spacing = (unsigned short) spacing;
800 m_dirty = TRUE;
801}
802
803size_t wxGenericTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recursively)
804{
805 wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") );
806
807 return ((wxGenericTreeItem*) item.m_pItem)->GetChildrenCount(recursively);
808}
809
810void wxGenericTreeCtrl::SetWindowStyle(const long styles)
811{
812 // right now, just sets the styles. Eventually, we may
813 // want to update the inherited styles, but right now
814 // none of the parents has updatable styles
815 m_windowStyle = styles;
816 m_dirty = TRUE;
817}
818
819// -----------------------------------------------------------------------------
820// functions to work with tree items
821// -----------------------------------------------------------------------------
822
823wxString wxGenericTreeCtrl::GetItemText(const wxTreeItemId& item) const
824{
825 wxCHECK_MSG( item.IsOk(), wxT(""), wxT("invalid tree item") );
826
827 return ((wxGenericTreeItem*) item.m_pItem)->GetText();
828}
829
830int wxGenericTreeCtrl::GetItemImage(const wxTreeItemId& item,
831 wxTreeItemIcon which) const
832{
833 wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") );
834
835 return ((wxGenericTreeItem*) item.m_pItem)->GetImage(which);
836}
837
838wxTreeItemData *wxGenericTreeCtrl::GetItemData(const wxTreeItemId& item) const
839{
840 wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
841
842 return ((wxGenericTreeItem*) item.m_pItem)->GetData();
843}
844
845void wxGenericTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
846{
847 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
848
849 wxClientDC dc(this);
850 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
851 pItem->SetText(text);
852 CalculateSize(pItem, dc);
853 RefreshLine(pItem);
854}
855
856void wxGenericTreeCtrl::SetItemImage(const wxTreeItemId& item,
857 int image,
858 wxTreeItemIcon which)
859{
860 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
861
862 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
863 pItem->SetImage(image, which);
864
865 wxClientDC dc(this);
866 CalculateSize(pItem, dc);
867 RefreshLine(pItem);
868}
869
870void wxGenericTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
871{
872 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
873
874 ((wxGenericTreeItem*) item.m_pItem)->SetData(data);
875}
876
877void wxGenericTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
878{
879 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
880
881 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
882 pItem->SetHasPlus(has);
883 RefreshLine(pItem);
884}
885
886void wxGenericTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
887{
888 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
889
890 // avoid redrawing the tree if no real change
891 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
892 if ( pItem->IsBold() != bold )
893 {
894 pItem->SetBold(bold);
895 RefreshLine(pItem);
896 }
897}
898
899void wxGenericTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
900 const wxColour& col)
901{
902 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
903
904 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
905 pItem->Attr().SetTextColour(col);
906 RefreshLine(pItem);
907}
908
909void wxGenericTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
910 const wxColour& col)
911{
912 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
913
914 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
915 pItem->Attr().SetBackgroundColour(col);
916 RefreshLine(pItem);
917}
918
919void wxGenericTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
920{
921 wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
922
923 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
924 pItem->Attr().SetFont(font);
925 RefreshLine(pItem);
926}
927
928bool wxGenericTreeCtrl::SetFont( const wxFont &font )
929{
930 wxScrolledWindow::SetFont(font);
931
932 m_normalFont = font ;
933 m_boldFont = wxFont( m_normalFont.GetPointSize(),
934 m_normalFont.GetFamily(),
935 m_normalFont.GetStyle(),
936 wxBOLD,
937 m_normalFont.GetUnderlined());
938
939 return TRUE;
940}
941
942
943// -----------------------------------------------------------------------------
944// item status inquiries
945// -----------------------------------------------------------------------------
946
947bool wxGenericTreeCtrl::IsVisible(const wxTreeItemId& item) const
948{
949 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
950
951 // An item is only visible if it's not a descendant of a collapsed item
952 wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
953 wxGenericTreeItem* parent = pItem->GetParent();
954 while (parent)
955 {
956 if (!parent->IsExpanded())
957 return FALSE;
958 parent = parent->GetParent();
959 }
960
961 int startX, startY;
962 GetViewStart(& startX, & startY);
963
964 wxSize clientSize = GetClientSize();
965
966 wxRect rect;
967 if (!GetBoundingRect(item, rect))
968 return FALSE;
969 if (rect.GetWidth() == 0 || rect.GetHeight() == 0)
970 return FALSE;
971 if (rect.GetBottom() < 0 || rect.GetTop() > clientSize.y)
972 return FALSE;
973 if (rect.GetRight() < 0 || rect.GetLeft() > clientSize.x)
974 return FALSE;
975
976 return TRUE;
977}
978
979bool wxGenericTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
980{
981 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
982
983 // consider that the item does have children if it has the "+" button: it
984 // might not have them (if it had never been expanded yet) but then it
985 // could have them as well and it's better to err on this side rather than
986 // disabling some operations which are restricted to the items with
987 // children for an item which does have them
988 return ((wxGenericTreeItem*) item.m_pItem)->HasPlus();
989}
990
991bool wxGenericTreeCtrl::IsExpanded(const wxTreeItemId& item) const
992{
993 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
994
995 return ((wxGenericTreeItem*) item.m_pItem)->IsExpanded();
996}
997
998bool wxGenericTreeCtrl::IsSelected(const wxTreeItemId& item) const
999{
1000 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
1001
1002 return ((wxGenericTreeItem*) item.m_pItem)->IsSelected();
1003}
1004
1005bool wxGenericTreeCtrl::IsBold(const wxTreeItemId& item) const
1006{
1007 wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
1008
1009 return ((wxGenericTreeItem*) item.m_pItem)->IsBold();
1010}
1011
1012// -----------------------------------------------------------------------------
1013// navigation
1014// -----------------------------------------------------------------------------
1015
1016wxTreeItemId wxGenericTreeCtrl::GetParent(const wxTreeItemId& item) const
1017{
1018 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1019
1020 return ((wxGenericTreeItem*) item.m_pItem)->GetParent();
1021}
1022
1023wxTreeItemId wxGenericTreeCtrl::GetFirstChild(const wxTreeItemId& item, long& cookie) const
1024{
1025 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1026
1027 cookie = 0;
1028 return GetNextChild(item, cookie);
1029}
1030
1031wxTreeItemId wxGenericTreeCtrl::GetNextChild(const wxTreeItemId& item, long& cookie) const
1032{
1033 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1034
1035 wxArrayGenericTreeItems& children = ((wxGenericTreeItem*) item.m_pItem)->GetChildren();
1036 if ( (size_t)cookie < children.Count() )
1037 {
1038 return children.Item((size_t)cookie++);
1039 }
1040 else
1041 {
1042 // there are no more of them
1043 return wxTreeItemId();
1044 }
1045}
1046
1047wxTreeItemId wxGenericTreeCtrl::GetLastChild(const wxTreeItemId& item) const
1048{
1049 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1050
1051 wxArrayGenericTreeItems& children = ((wxGenericTreeItem*) item.m_pItem)->GetChildren();
1052 return (children.IsEmpty() ? wxTreeItemId() : wxTreeItemId(children.Last()));
1053}
1054
1055wxTreeItemId wxGenericTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
1056{
1057 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1058
1059 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
1060 wxGenericTreeItem *parent = i->GetParent();
1061 if ( parent == NULL )
1062 {
1063 // root item doesn't have any siblings
1064 return wxTreeItemId();
1065 }
1066
1067 wxArrayGenericTreeItems& siblings = parent->GetChildren();
1068 int index = siblings.Index(i);
1069 wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
1070
1071 size_t n = (size_t)(index + 1);
1072 return n == siblings.Count() ? wxTreeItemId() : wxTreeItemId(siblings[n]);
1073}
1074
1075wxTreeItemId wxGenericTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
1076{
1077 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1078
1079 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
1080 wxGenericTreeItem *parent = i->GetParent();
1081 if ( parent == NULL )
1082 {
1083 // root item doesn't have any siblings
1084 return wxTreeItemId();
1085 }
1086
1087 wxArrayGenericTreeItems& siblings = parent->GetChildren();
1088 int index = siblings.Index(i);
1089 wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
1090
1091 return index == 0 ? wxTreeItemId()
1092 : wxTreeItemId(siblings[(size_t)(index - 1)]);
1093}
1094
1095// Only for internal use right now, but should probably be public
1096wxTreeItemId wxGenericTreeCtrl::GetNext(const wxTreeItemId& item) const
1097{
1098 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1099
1100 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
1101
1102 // First see if there are any children.
1103 wxArrayGenericTreeItems& children = i->GetChildren();
1104 if (children.GetCount() > 0)
1105 {
1106 return children.Item(0);
1107 }
1108 else
1109 {
1110 // Try a sibling of this or ancestor instead
1111 wxTreeItemId p = item;
1112 wxTreeItemId toFind;
1113 do
1114 {
1115 toFind = GetNextSibling(p);
1116 p = GetParent(p);
1117 } while (p.IsOk() && !toFind.IsOk());
1118 return toFind;
1119 }
1120}
1121
1122wxTreeItemId wxGenericTreeCtrl::GetFirstVisibleItem() const
1123{
1124 wxTreeItemId id = GetRootItem();
1125 if (!id.IsOk())
1126 return id;
1127
1128 do
1129 {
1130 if (IsVisible(id))
1131 return id;
1132 id = GetNext(id);
1133 } while (id.IsOk());
1134
1135 return wxTreeItemId();
1136}
1137
1138wxTreeItemId wxGenericTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
1139{
1140 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1141
1142 wxTreeItemId id = item;
1143 if (id.IsOk())
1144 {
1145 while (id = GetNext(id), id.IsOk())
1146 {
1147 if (IsVisible(id))
1148 return id;
1149 }
1150 }
1151 return wxTreeItemId();
1152}
1153
1154wxTreeItemId wxGenericTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
1155{
1156 wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1157
1158 wxFAIL_MSG(wxT("not implemented"));
1159
1160 return wxTreeItemId();
1161}
1162
1163// -----------------------------------------------------------------------------
1164// operations
1165// -----------------------------------------------------------------------------
1166
1167wxTreeItemId wxGenericTreeCtrl::DoInsertItem(const wxTreeItemId& parentId,
1168 size_t previous,
1169 const wxString& text,
1170 int image, int selImage,
1171 wxTreeItemData *data)
1172{
1173 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1174 if ( !parent )
1175 {
1176 // should we give a warning here?
1177 return AddRoot(text, image, selImage, data);
1178 }
1179
1180 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1181
1182 wxGenericTreeItem *item =
1183 new wxGenericTreeItem( parent, text, image, selImage, data );
1184
1185 if ( data != NULL )
1186 {
1187 data->m_pItem = (long) item;
1188 }
1189
1190 parent->Insert( item, previous );
1191
1192 return item;
1193}
1194
1195wxTreeItemId wxGenericTreeCtrl::AddRoot(const wxString& text,
1196 int image, int selImage,
1197 wxTreeItemData *data)
1198{
1199 wxCHECK_MSG( !m_anchor, wxTreeItemId(), wxT("tree can have only one root") );
1200
1201 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1202
1203 m_anchor = new wxGenericTreeItem((wxGenericTreeItem *)NULL, text,
1204 image, selImage, data);
1205 if ( data != NULL )
1206 {
1207 data->m_pItem = (long) m_anchor;
1208 }
1209
1210 if (HasFlag(wxTR_HIDE_ROOT))
1211 {
1212 // if root is hidden, make sure we can navigate
1213 // into children
1214 m_anchor->SetHasPlus();
1215 Expand(m_anchor);
1216 }
1217
1218 if (!HasFlag(wxTR_MULTIPLE))
1219 {
1220 m_current = m_key_current = m_anchor;
1221 m_current->SetHilight( TRUE );
1222 }
1223
1224 return m_anchor;
1225}
1226
1227wxTreeItemId wxGenericTreeCtrl::PrependItem(const wxTreeItemId& parent,
1228 const wxString& text,
1229 int image, int selImage,
1230 wxTreeItemData *data)
1231{
1232 return DoInsertItem(parent, 0u, text, image, selImage, data);
1233}
1234
1235wxTreeItemId wxGenericTreeCtrl::InsertItem(const wxTreeItemId& parentId,
1236 const wxTreeItemId& idPrevious,
1237 const wxString& text,
1238 int image, int selImage,
1239 wxTreeItemData *data)
1240{
1241 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1242 if ( !parent )
1243 {
1244 // should we give a warning here?
1245 return AddRoot(text, image, selImage, data);
1246 }
1247
1248 int index = parent->GetChildren().Index((wxGenericTreeItem*) idPrevious.m_pItem);
1249 wxASSERT_MSG( index != wxNOT_FOUND,
1250 wxT("previous item in wxGenericTreeCtrl::InsertItem() is not a sibling") );
1251
1252 return DoInsertItem(parentId, (size_t)++index, text, image, selImage, data);
1253}
1254
1255wxTreeItemId wxGenericTreeCtrl::InsertItem(const wxTreeItemId& parentId,
1256 size_t before,
1257 const wxString& text,
1258 int image, int selImage,
1259 wxTreeItemData *data)
1260{
1261 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1262 if ( !parent )
1263 {
1264 // should we give a warning here?
1265 return AddRoot(text, image, selImage, data);
1266 }
1267
1268 return DoInsertItem(parentId, before, text, image, selImage, data);
1269}
1270
1271wxTreeItemId wxGenericTreeCtrl::AppendItem(const wxTreeItemId& parentId,
1272 const wxString& text,
1273 int image, int selImage,
1274 wxTreeItemData *data)
1275{
1276 wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1277 if ( !parent )
1278 {
1279 // should we give a warning here?
1280 return AddRoot(text, image, selImage, data);
1281 }
1282
1283 return DoInsertItem( parent, parent->GetChildren().Count(), text,
1284 image, selImage, data);
1285}
1286
1287void wxGenericTreeCtrl::SendDeleteEvent(wxGenericTreeItem *item)
1288{
1289 wxTreeEvent event( wxEVT_COMMAND_TREE_DELETE_ITEM, GetId() );
1290 event.m_item = (long) item;
1291 event.SetEventObject( this );
1292 ProcessEvent( event );
1293}
1294
1295void wxGenericTreeCtrl::DeleteChildren(const wxTreeItemId& itemId)
1296{
1297 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1298
1299 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1300 item->DeleteChildren(this);
1301}
1302
1303void wxGenericTreeCtrl::Delete(const wxTreeItemId& itemId)
1304{
1305 m_dirty = TRUE; // do this first so stuff below doesn't cause flicker
1306
1307 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1308
1309 // don't stay with invalid m_key_current or we will crash in
1310 // the next call to OnChar()
1311 bool changeKeyCurrent = FALSE;
1312 wxGenericTreeItem *itemKey = m_key_current;
1313 while ( itemKey )
1314 {
1315 if ( itemKey == item )
1316 {
1317 // m_key_current is a descendant of the item being deleted
1318 changeKeyCurrent = TRUE;
1319 break;
1320 }
1321 itemKey = itemKey->GetParent();
1322 }
1323
1324 wxGenericTreeItem *parent = item->GetParent();
1325 if ( parent )
1326 {
1327 parent->GetChildren().Remove( item ); // remove by value
1328 }
1329
1330 if ( changeKeyCurrent )
1331 {
1332 // may be NULL or not
1333 m_key_current = parent;
1334 }
1335
1336 item->DeleteChildren(this);
1337 SendDeleteEvent(item);
1338 delete item;
1339}
1340
1341void wxGenericTreeCtrl::DeleteAllItems()
1342{
1343 if ( m_anchor )
1344 {
1345 m_dirty = TRUE;
1346
1347 m_anchor->DeleteChildren(this);
1348 delete m_anchor;
1349
1350 m_anchor = NULL;
1351 }
1352}
1353
1354void wxGenericTreeCtrl::Expand(const wxTreeItemId& itemId)
1355{
1356 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1357
1358 wxCHECK_RET( item, _T("invalid item in wxGenericTreeCtrl::Expand") );
1359
1360 if ( !item->HasPlus() )
1361 return;
1362
1363 if ( item->IsExpanded() )
1364 return;
1365
1366 wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_EXPANDING, GetId() );
1367 event.m_item = (long) item;
1368 event.SetEventObject( this );
1369
1370 if ( ProcessEvent( event ) && !event.IsAllowed() )
1371 {
1372 // cancelled by program
1373 return;
1374 }
1375
1376 item->Expand();
1377 CalculatePositions();
1378
1379 RefreshSubtree(item);
1380
1381 event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED);
1382 ProcessEvent( event );
1383}
1384
1385void wxGenericTreeCtrl::ExpandAll(const wxTreeItemId& item)
1386{
1387 Expand(item);
1388 if ( IsExpanded(item) )
1389 {
1390 long cookie;
1391 wxTreeItemId child = GetFirstChild(item, cookie);
1392 while ( child.IsOk() )
1393 {
1394 ExpandAll(child);
1395
1396 child = GetNextChild(item, cookie);
1397 }
1398 }
1399}
1400
1401void wxGenericTreeCtrl::Collapse(const wxTreeItemId& itemId)
1402{
1403 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1404
1405 if ( !item->IsExpanded() )
1406 return;
1407
1408 wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_COLLAPSING, GetId() );
1409 event.m_item = (long) item;
1410 event.SetEventObject( this );
1411 if ( ProcessEvent( event ) && !event.IsAllowed() )
1412 {
1413 // cancelled by program
1414 return;
1415 }
1416
1417 item->Collapse();
1418
1419#if 0 // TODO why should items be collapsed recursively?
1420 wxArrayGenericTreeItems& children = item->GetChildren();
1421 size_t count = children.Count();
1422 for ( size_t n = 0; n < count; n++ )
1423 {
1424 Collapse(children[n]);
1425 }
1426#endif
1427
1428 CalculatePositions();
1429
1430 RefreshSubtree(item);
1431
1432 event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED);
1433 ProcessEvent( event );
1434}
1435
1436void wxGenericTreeCtrl::CollapseAndReset(const wxTreeItemId& item)
1437{
1438 Collapse(item);
1439 DeleteChildren(item);
1440}
1441
1442void wxGenericTreeCtrl::Toggle(const wxTreeItemId& itemId)
1443{
1444 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1445
1446 if (item->IsExpanded())
1447 Collapse(itemId);
1448 else
1449 Expand(itemId);
1450}
1451
1452void wxGenericTreeCtrl::Unselect()
1453{
1454 if (m_current)
1455 {
1456 m_current->SetHilight( FALSE );
1457 RefreshLine( m_current );
1458 }
1459}
1460
1461void wxGenericTreeCtrl::UnselectAllChildren(wxGenericTreeItem *item)
1462{
1463 if (item->IsSelected())
1464 {
1465 item->SetHilight(FALSE);
1466 RefreshLine(item);
1467 }
1468
1469 if (item->HasChildren())
1470 {
1471 wxArrayGenericTreeItems& children = item->GetChildren();
1472 size_t count = children.Count();
1473 for ( size_t n = 0; n < count; ++n )
1474 {
1475 UnselectAllChildren(children[n]);
1476 }
1477 }
1478}
1479
1480void wxGenericTreeCtrl::UnselectAll()
1481{
1482 wxTreeItemId rootItem = GetRootItem();
1483
1484 // the tree might not have the root item at all
1485 if ( rootItem )
1486 {
1487 UnselectAllChildren((wxGenericTreeItem*) rootItem.m_pItem);
1488 }
1489}
1490
1491// Recursive function !
1492// To stop we must have crt_item<last_item
1493// Algorithm :
1494// Tag all next children, when no more children,
1495// Move to parent (not to tag)
1496// Keep going... if we found last_item, we stop.
1497bool wxGenericTreeCtrl::TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
1498{
1499 wxGenericTreeItem *parent = crt_item->GetParent();
1500
1501 if (parent == NULL) // This is root item
1502 return TagAllChildrenUntilLast(crt_item, last_item, select);
1503
1504 wxArrayGenericTreeItems& children = parent->GetChildren();
1505 int index = children.Index(crt_item);
1506 wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
1507
1508 size_t count = children.Count();
1509 for (size_t n=(size_t)(index+1); n<count; ++n)
1510 {
1511 if (TagAllChildrenUntilLast(children[n], last_item, select)) return TRUE;
1512 }
1513
1514 return TagNextChildren(parent, last_item, select);
1515}
1516
1517bool wxGenericTreeCtrl::TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
1518{
1519 crt_item->SetHilight(select);
1520 RefreshLine(crt_item);
1521
1522 if (crt_item==last_item)
1523 return TRUE;
1524
1525 if (crt_item->HasChildren())
1526 {
1527 wxArrayGenericTreeItems& children = crt_item->GetChildren();
1528 size_t count = children.Count();
1529 for ( size_t n = 0; n < count; ++n )
1530 {
1531 if (TagAllChildrenUntilLast(children[n], last_item, select))
1532 return TRUE;
1533 }
1534 }
1535
1536 return FALSE;
1537}
1538
1539void wxGenericTreeCtrl::SelectItemRange(wxGenericTreeItem *item1, wxGenericTreeItem *item2)
1540{
1541 // item2 is not necessary after item1
1542 wxGenericTreeItem *first=NULL, *last=NULL;
1543
1544 // choice first' and 'last' between item1 and item2
1545 if (item1->GetY()<item2->GetY())
1546 {
1547 first=item1;
1548 last=item2;
1549 }
1550 else
1551 {
1552 first=item2;
1553 last=item1;
1554 }
1555
1556 bool select = m_current->IsSelected();
1557
1558 if ( TagAllChildrenUntilLast(first,last,select) )
1559 return;
1560
1561 TagNextChildren(first,last,select);
1562}
1563
1564void wxGenericTreeCtrl::SelectItem(const wxTreeItemId& itemId,
1565 bool unselect_others,
1566 bool extended_select)
1567{
1568 wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
1569
1570 bool is_single=!(GetWindowStyleFlag() & wxTR_MULTIPLE);
1571 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1572
1573 //wxCHECK_RET( ( (!unselect_others) && is_single),
1574 // wxT("this is a single selection tree") );
1575
1576 // to keep going anyhow !!!
1577 if (is_single)
1578 {
1579 if (item->IsSelected())
1580 return; // nothing to do
1581 unselect_others = TRUE;
1582 extended_select = FALSE;
1583 }
1584 else if ( unselect_others && item->IsSelected() )
1585 {
1586 // selection change if there is more than one item currently selected
1587 wxArrayTreeItemIds selected_items;
1588 if ( GetSelections(selected_items) == 1 )
1589 return;
1590 }
1591
1592 wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGING, GetId() );
1593 event.m_item = (long) item;
1594 event.m_itemOld = (long) m_current;
1595 event.SetEventObject( this );
1596 // TODO : Here we don't send any selection mode yet !
1597
1598 if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
1599 return;
1600
1601 wxTreeItemId parent = GetParent( itemId );
1602 while (parent.IsOk())
1603 {
1604 if (!IsExpanded(parent))
1605 Expand( parent );
1606
1607 parent = GetParent( parent );
1608 }
1609
1610 EnsureVisible( itemId );
1611
1612 // ctrl press
1613 if (unselect_others)
1614 {
1615 if (is_single) Unselect(); // to speed up thing
1616 else UnselectAll();
1617 }
1618
1619 // shift press
1620 if (extended_select)
1621 {
1622 if ( !m_current )
1623 {
1624 m_current = m_key_current = (wxGenericTreeItem*) GetRootItem().m_pItem;
1625 }
1626
1627 // don't change the mark (m_current)
1628 SelectItemRange(m_current, item);
1629 }
1630 else
1631 {
1632 bool select=TRUE; // the default
1633
1634 // Check if we need to toggle hilight (ctrl mode)
1635 if (!unselect_others)
1636 select=!item->IsSelected();
1637
1638 m_current = m_key_current = item;
1639 m_current->SetHilight(select);
1640 RefreshLine( m_current );
1641 }
1642
1643 event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
1644 GetEventHandler()->ProcessEvent( event );
1645}
1646
1647void wxGenericTreeCtrl::FillArray(wxGenericTreeItem *item,
1648 wxArrayTreeItemIds &array) const
1649{
1650 if ( item->IsSelected() )
1651 array.Add(wxTreeItemId(item));
1652
1653 if ( item->HasChildren() )
1654 {
1655 wxArrayGenericTreeItems& children = item->GetChildren();
1656 size_t count = children.GetCount();
1657 for ( size_t n = 0; n < count; ++n )
1658 FillArray(children[n], array);
1659 }
1660}
1661
1662size_t wxGenericTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const
1663{
1664 array.Empty();
1665 wxTreeItemId idRoot = GetRootItem();
1666 if ( idRoot.IsOk() )
1667 {
1668 FillArray((wxGenericTreeItem*) idRoot.m_pItem, array);
1669 }
1670 //else: the tree is empty, so no selections
1671
1672 return array.Count();
1673}
1674
1675void wxGenericTreeCtrl::EnsureVisible(const wxTreeItemId& item)
1676{
1677 if (!item.IsOk()) return;
1678
1679 wxGenericTreeItem *gitem = (wxGenericTreeItem*) item.m_pItem;
1680
1681 // first expand all parent branches
1682 wxGenericTreeItem *parent = gitem->GetParent();
1683 while ( parent )
1684 {
1685 Expand(parent);
1686 parent = parent->GetParent();
1687 }
1688
1689 //if (parent) CalculatePositions();
1690
1691 ScrollTo(item);
1692}
1693
1694void wxGenericTreeCtrl::ScrollTo(const wxTreeItemId &item)
1695{
1696 if (!item.IsOk()) return;
1697
1698 // We have to call this here because the label in
1699 // question might just have been added and no screen
1700 // update taken place.
1701 if (m_dirty) wxYieldIfNeeded();
1702
1703 wxGenericTreeItem *gitem = (wxGenericTreeItem*) item.m_pItem;
1704
1705 // now scroll to the item
1706 int item_y = gitem->GetY();
1707
1708 int start_x = 0;
1709 int start_y = 0;
1710 GetViewStart( &start_x, &start_y );
1711 start_y *= PIXELS_PER_UNIT;
1712
1713 int client_h = 0;
1714 int client_w = 0;
1715 GetClientSize( &client_w, &client_h );
1716
1717 if (item_y < start_y+3)
1718 {
1719 // going down
1720 int x = 0;
1721 int y = 0;
1722 m_anchor->GetSize( x, y, this );
1723 y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1724 x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1725 int x_pos = GetScrollPos( wxHORIZONTAL );
1726 // Item should appear at top
1727 SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, item_y/PIXELS_PER_UNIT );
1728 }
1729 else if (item_y+GetLineHeight(gitem) > start_y+client_h)
1730 {
1731 // going up
1732 int x = 0;
1733 int y = 0;
1734 m_anchor->GetSize( x, y, this );
1735 y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1736 x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1737 item_y += PIXELS_PER_UNIT+2;
1738 int x_pos = GetScrollPos( wxHORIZONTAL );
1739 // Item should appear at bottom
1740 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 );
1741 }
1742}
1743
1744// FIXME: tree sorting functions are not reentrant and not MT-safe!
1745static wxGenericTreeCtrl *s_treeBeingSorted = NULL;
1746
1747static int LINKAGEMODE tree_ctrl_compare_func(wxGenericTreeItem **item1,
1748 wxGenericTreeItem **item2)
1749{
1750 wxCHECK_MSG( s_treeBeingSorted, 0, wxT("bug in wxGenericTreeCtrl::SortChildren()") );
1751
1752 return s_treeBeingSorted->OnCompareItems(*item1, *item2);
1753}
1754
1755int wxGenericTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
1756 const wxTreeItemId& item2)
1757{
1758 return wxStrcmp(GetItemText(item1), GetItemText(item2));
1759}
1760
1761void wxGenericTreeCtrl::SortChildren(const wxTreeItemId& itemId)
1762{
1763 wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
1764
1765 wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1766
1767 wxCHECK_RET( !s_treeBeingSorted,
1768 wxT("wxGenericTreeCtrl::SortChildren is not reentrant") );
1769
1770 wxArrayGenericTreeItems& children = item->GetChildren();
1771 if ( children.Count() > 1 )
1772 {
1773 m_dirty = TRUE;
1774
1775 s_treeBeingSorted = this;
1776 children.Sort(tree_ctrl_compare_func);
1777 s_treeBeingSorted = NULL;
1778 }
1779 //else: don't make the tree dirty as nothing changed
1780}
1781
1782wxImageList *wxGenericTreeCtrl::GetImageList() const
1783{
1784 return m_imageListNormal;
1785}
1786
1787wxImageList *wxGenericTreeCtrl::GetButtonsImageList() const
1788{
1789 return m_imageListButtons;
1790}
1791
1792wxImageList *wxGenericTreeCtrl::GetStateImageList() const
1793{
1794 return m_imageListState;
1795}
1796
1797void wxGenericTreeCtrl::CalculateLineHeight()
1798{
1799 wxClientDC dc(this);
1800 m_lineHeight = (int)(dc.GetCharHeight() + 4);
1801
1802 if ( m_imageListNormal )
1803 {
1804 // Calculate a m_lineHeight value from the normal Image sizes.
1805 // May be toggle off. Then wxGenericTreeCtrl will spread when
1806 // necessary (which might look ugly).
1807 int n = m_imageListNormal->GetImageCount();
1808 for (int i = 0; i < n ; i++)
1809 {
1810 int width = 0, height = 0;
1811 m_imageListNormal->GetSize(i, width, height);
1812 if (height > m_lineHeight) m_lineHeight = height;
1813 }
1814 }
1815
1816 if (m_imageListButtons)
1817 {
1818 // Calculate a m_lineHeight value from the Button image sizes.
1819 // May be toggle off. Then wxGenericTreeCtrl will spread when
1820 // necessary (which might look ugly).
1821 int n = m_imageListButtons->GetImageCount();
1822 for (int i = 0; i < n ; i++)
1823 {
1824 int width = 0, height = 0;
1825 m_imageListButtons->GetSize(i, width, height);
1826 if (height > m_lineHeight) m_lineHeight = height;
1827 }
1828 }
1829
1830 if (m_lineHeight < 30)
1831 m_lineHeight += 2; // at least 2 pixels
1832 else
1833 m_lineHeight += m_lineHeight/10; // otherwise 10% extra spacing
1834}
1835
1836void wxGenericTreeCtrl::SetImageList(wxImageList *imageList)
1837{
1838 if (m_ownsImageListNormal) delete m_imageListNormal;
1839 m_imageListNormal = imageList;
1840 m_ownsImageListNormal = FALSE;
1841 m_dirty = TRUE;
1842 CalculateLineHeight();
1843}
1844
1845void wxGenericTreeCtrl::SetStateImageList(wxImageList *imageList)
1846{
1847 if (m_ownsImageListState) delete m_imageListState;
1848 m_imageListState = imageList;
1849 m_ownsImageListState = FALSE;
1850}
1851
1852void wxGenericTreeCtrl::SetButtonsImageList(wxImageList *imageList)
1853{
1854 if (m_ownsImageListButtons) delete m_imageListButtons;
1855 m_imageListButtons = imageList;
1856 m_ownsImageListButtons = FALSE;
1857 m_dirty = TRUE;
1858 CalculateLineHeight();
1859}
1860
1861void wxGenericTreeCtrl::AssignImageList(wxImageList *imageList)
1862{
1863 SetImageList(imageList);
1864 m_ownsImageListNormal = TRUE;
1865}
1866
1867void wxGenericTreeCtrl::AssignStateImageList(wxImageList *imageList)
1868{
1869 SetStateImageList(imageList);
1870 m_ownsImageListState = TRUE;
1871}
1872
1873void wxGenericTreeCtrl::AssignButtonsImageList(wxImageList *imageList)
1874{
1875 SetButtonsImageList(imageList);
1876 m_ownsImageListButtons = TRUE;
1877}
1878
1879// -----------------------------------------------------------------------------
1880// helpers
1881// -----------------------------------------------------------------------------
1882
1883void wxGenericTreeCtrl::AdjustMyScrollbars()
1884{
1885 if (m_anchor)
1886 {
1887 int x = 0, y = 0;
1888 m_anchor->GetSize( x, y, this );
1889 y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1890 x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
1891 int x_pos = GetScrollPos( wxHORIZONTAL );
1892 int y_pos = GetScrollPos( wxVERTICAL );
1893 SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, y_pos );
1894 }
1895 else
1896 {
1897 SetScrollbars( 0, 0, 0, 0 );
1898 }
1899}
1900
1901int wxGenericTreeCtrl::GetLineHeight(wxGenericTreeItem *item) const
1902{
1903 if (GetWindowStyleFlag() & wxTR_HAS_VARIABLE_ROW_HEIGHT)
1904 return item->GetHeight();
1905 else
1906 return m_lineHeight;
1907}
1908
1909void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc)
1910{
1911 // TODO implement "state" icon on items
1912
1913 wxTreeItemAttr *attr = item->GetAttributes();
1914 if ( attr && attr->HasFont() )
1915 dc.SetFont(attr->GetFont());
1916 else if (item->IsBold())
1917 dc.SetFont(m_boldFont);
1918
1919 long text_w = 0, text_h = 0;
1920 dc.GetTextExtent( item->GetText(), &text_w, &text_h );
1921
1922 int image_h = 0, image_w = 0;
1923 int image = item->GetCurrentImage();
1924 if ( image != NO_IMAGE )
1925 {
1926 if ( m_imageListNormal )
1927 {
1928 m_imageListNormal->GetSize( image, image_w, image_h );
1929 image_w += 4;
1930 }
1931 else
1932 {
1933 image = NO_IMAGE;
1934 }
1935 }
1936
1937 int total_h = GetLineHeight(item);
1938
1939 if ( item->IsSelected() )
1940 {
1941 dc.SetBrush(*(m_hasFocus ? m_hilightBrush : m_hilightUnfocusedBrush));
1942 }
1943 else
1944 {
1945 wxColour colBg;
1946 if ( attr && attr->HasBackgroundColour() )
1947 colBg = attr->GetBackgroundColour();
1948 else
1949 colBg = m_backgroundColour;
1950 dc.SetBrush(wxBrush(colBg, wxSOLID));
1951 }
1952
1953 int offset = HasFlag(wxTR_ROW_LINES) ? 1 : 0;
1954
1955 if ( HasFlag(wxTR_FULL_ROW_HIGHLIGHT) )
1956 {
1957 int x, y, w, h;
1958
1959 DoGetPosition(&x, &y);
1960 DoGetSize(&w, &h);
1961 dc.DrawRectangle(x, item->GetY()+offset, w, total_h-offset);
1962 }
1963 else
1964 {
1965 if ( item->IsSelected() && image != NO_IMAGE )
1966 {
1967 // If it's selected, and there's an image, then we should
1968 // take care to leave the area under the image painted in the
1969 // background colour.
1970 dc.DrawRectangle( item->GetX() + image_w - 2, item->GetY()+offset,
1971 item->GetWidth() - image_w + 2, total_h-offset );
1972 }
1973 else
1974 {
1975 dc.DrawRectangle( item->GetX()-2, item->GetY()+offset,
1976 item->GetWidth()+2, total_h-offset );
1977 }
1978 }
1979
1980 if ( image != NO_IMAGE )
1981 {
1982 dc.SetClippingRegion( item->GetX(), item->GetY(), image_w-2, total_h );
1983 m_imageListNormal->Draw( image, dc,
1984 item->GetX(),
1985 item->GetY() +((total_h > image_h)?((total_h-image_h)/2):0),
1986 wxIMAGELIST_DRAW_TRANSPARENT );
1987 dc.DestroyClippingRegion();
1988 }
1989
1990 dc.SetBackgroundMode(wxTRANSPARENT);
1991 int extraH = (total_h > text_h) ? (total_h - text_h)/2 : 0;
1992 dc.DrawText( item->GetText(),
1993 (wxCoord)(image_w + item->GetX()),
1994 (wxCoord)(item->GetY() + extraH));
1995
1996 // restore normal font
1997 dc.SetFont( m_normalFont );
1998}
1999
2000// Now y stands for the top of the item, whereas it used to stand for middle !
2001void wxGenericTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y )
2002{
2003 int x = level*m_indent;
2004 if (!HasFlag(wxTR_HIDE_ROOT))
2005 {
2006 x += m_indent;
2007 }
2008 else if (level == 0)
2009 {
2010 // always expand hidden root
2011 int origY = y;
2012 wxArrayGenericTreeItems& children = item->GetChildren();
2013 int count = children.Count();
2014 if (count > 0)
2015 {
2016 int n = 0, oldY;
2017 do {
2018 oldY = y;
2019 PaintLevel(children[n], dc, 1, y);
2020 } while (++n < count);
2021
2022 if (!HasFlag(wxTR_NO_LINES) && HasFlag(wxTR_LINES_AT_ROOT) && count > 0)
2023 {
2024 // draw line down to last child
2025 origY += GetLineHeight(children[0])>>1;
2026 oldY += GetLineHeight(children[n-1])>>1;
2027 dc.DrawLine(3, origY, 3, oldY);
2028 }
2029 }
2030 return;
2031 }
2032
2033 item->SetX(x+m_spacing);
2034 item->SetY(y);
2035
2036 int h = GetLineHeight(item);
2037 int y_top = y;
2038 int y_mid = y_top + (h>>1);
2039 y += h;
2040
2041 int exposed_x = dc.LogicalToDeviceX(0);
2042 int exposed_y = dc.LogicalToDeviceY(y_top);
2043
2044 if (IsExposed(exposed_x, exposed_y, 10000, h)) // 10000 = very much
2045 {
2046 wxPen *pen =
2047#ifndef __WXMAC__
2048 // don't draw rect outline if we already have the
2049 // background color under Mac
2050 (item->IsSelected() && m_hasFocus) ? wxBLACK_PEN :
2051#endif // !__WXMAC__
2052 wxTRANSPARENT_PEN;
2053
2054 wxColour colText;
2055 if ( item->IsSelected() )
2056 {
2057 colText = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
2058 }
2059 else
2060 {
2061 wxTreeItemAttr *attr = item->GetAttributes();
2062 if (attr && attr->HasTextColour())
2063 colText = attr->GetTextColour();
2064 else
2065 colText = GetForegroundColour();
2066 }
2067
2068 // prepare to draw
2069 dc.SetTextForeground(colText);
2070 dc.SetPen(*pen);
2071
2072 // draw
2073 PaintItem(item, dc);
2074
2075 if (HasFlag(wxTR_ROW_LINES))
2076 {
2077 // if the background colour is white, choose a
2078 // contrasting color for the lines
2079 dc.SetPen(*((GetBackgroundColour() == *wxWHITE)
2080 ? wxMEDIUM_GREY_PEN : wxWHITE_PEN));
2081 dc.DrawLine(0, y_top, 10000, y_top);
2082 dc.DrawLine(0, y, 10000, y);
2083 }
2084
2085 // restore DC objects
2086 dc.SetBrush(*wxWHITE_BRUSH);
2087 dc.SetPen(m_dottedPen);
2088 dc.SetTextForeground(*wxBLACK);
2089
2090 if (item->HasPlus() && HasButtons()) // should the item show a button?
2091 {
2092 if (!HasFlag(wxTR_NO_LINES))
2093 {
2094 if (x > (signed)m_indent)
2095 dc.DrawLine(x - m_indent, y_mid, x - 5, y_mid);
2096 else if (HasFlag(wxTR_LINES_AT_ROOT))
2097 dc.DrawLine(3, y_mid, x - 5, y_mid);
2098 dc.DrawLine(x + 5, y_mid, x + m_spacing, y_mid);
2099 }
2100
2101 if (m_imageListButtons != NULL)
2102 {
2103 // draw the image button here
2104 int image_h = 0, image_w = 0, image = wxTreeItemIcon_Normal;
2105 if (item->IsExpanded()) image = wxTreeItemIcon_Expanded;
2106 if (item->IsSelected())
2107 image += wxTreeItemIcon_Selected - wxTreeItemIcon_Normal;
2108 m_imageListButtons->GetSize(image, image_w, image_h);
2109 int xx = x - (image_w>>1);
2110 int yy = y_mid - (image_h>>1);
2111 dc.SetClippingRegion(xx, yy, image_w, image_h);
2112 m_imageListButtons->Draw(image, dc, xx, yy,
2113 wxIMAGELIST_DRAW_TRANSPARENT);
2114 dc.DestroyClippingRegion();
2115 }
2116 else if (HasFlag(wxTR_TWIST_BUTTONS))
2117 {
2118 // draw the twisty button here
2119
2120 if (HasFlag(wxTR_AQUA_BUTTONS))
2121 {
2122 if (item->IsExpanded())
2123 dc.DrawBitmap( *m_arrowDown, x-5, y_mid-6, TRUE );
2124 else
2125 dc.DrawBitmap( *m_arrowRight, x-5, y_mid-6, TRUE );
2126 }
2127 else
2128 {
2129 dc.SetBrush(*m_hilightBrush);
2130 dc.SetPen(*wxBLACK_PEN);
2131 wxPoint button[3];
2132
2133 if (item->IsExpanded())
2134 {
2135 button[0].x = x-5;
2136 button[0].y = y_mid-2;
2137 button[1].x = x+5;
2138 button[1].y = y_mid-2;
2139 button[2].x = x;
2140 button[2].y = y_mid+3;
2141 }
2142 else
2143 {
2144 button[0].y = y_mid-5;
2145 button[0].x = x-2;
2146 button[1].y = y_mid+5;
2147 button[1].x = x-2;
2148 button[2].y = y_mid;
2149 button[2].x = x+3;
2150 }
2151 dc.DrawPolygon(3, button);
2152 dc.SetPen(m_dottedPen);
2153 }
2154 }
2155 else // if (HasFlag(wxTR_HAS_BUTTONS))
2156 {
2157 // draw the plus sign here
2158 dc.SetPen(*wxGREY_PEN);
2159 dc.SetBrush(*wxWHITE_BRUSH);
2160 dc.DrawRectangle(x-5, y_mid-4, 11, 9);
2161 dc.SetPen(*wxBLACK_PEN);
2162 dc.DrawLine(x-2, y_mid, x+3, y_mid);
2163 if (!item->IsExpanded())
2164 dc.DrawLine(x, y_mid-2, x, y_mid+3);
2165 dc.SetPen(m_dottedPen);
2166 }
2167 }
2168 else if (!HasFlag(wxTR_NO_LINES)) // no button; maybe a line?
2169 {
2170 // draw the horizontal line here
2171 int x_start = x;
2172 if (x > (signed)m_indent)
2173 x_start -= m_indent;
2174 else if (HasFlag(wxTR_LINES_AT_ROOT))
2175 x_start = 3;
2176 dc.DrawLine(x_start, y_mid, x + m_spacing, y_mid);
2177 }
2178 }
2179
2180 if (item->IsExpanded())
2181 {
2182 wxArrayGenericTreeItems& children = item->GetChildren();
2183 int count = children.Count();
2184 if (count > 0)
2185 {
2186 int n = 0, oldY;
2187 ++level;
2188 do {
2189 oldY = y;
2190 PaintLevel(children[n], dc, level, y);
2191 } while (++n < count);
2192
2193 if (!HasFlag(wxTR_NO_LINES) && count > 0)
2194 {
2195 // draw line down to last child
2196 oldY += GetLineHeight(children[n-1])>>1;
2197 if (HasButtons()) y_mid += 5;
2198 dc.DrawLine(x, y_mid, x, oldY);
2199 }
2200 }
2201 }
2202}
2203
2204void wxGenericTreeCtrl::DrawDropEffect(wxGenericTreeItem *item)
2205{
2206 if ( item )
2207 {
2208 if ( item->HasPlus() )
2209 {
2210 // it's a folder, indicate it by a border
2211 DrawBorder(item);
2212 }
2213 else
2214 {
2215 // draw a line under the drop target because the item will be
2216 // dropped there
2217 DrawLine(item, TRUE /* below */);
2218 }
2219
2220 SetCursor(wxCURSOR_BULLSEYE);
2221 }
2222 else
2223 {
2224 // can't drop here
2225 SetCursor(wxCURSOR_NO_ENTRY);
2226 }
2227}
2228
2229void wxGenericTreeCtrl::DrawBorder(const wxTreeItemId &item)
2230{
2231 wxCHECK_RET( item.IsOk(), _T("invalid item in wxGenericTreeCtrl::DrawLine") );
2232
2233 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2234
2235 wxClientDC dc(this);
2236 PrepareDC( dc );
2237 dc.SetLogicalFunction(wxINVERT);
2238 dc.SetBrush(*wxTRANSPARENT_BRUSH);
2239
2240 int w = i->GetWidth() + 2;
2241 int h = GetLineHeight(i) + 2;
2242
2243 dc.DrawRectangle( i->GetX() - 1, i->GetY() - 1, w, h);
2244}
2245
2246void wxGenericTreeCtrl::DrawLine(const wxTreeItemId &item, bool below)
2247{
2248 wxCHECK_RET( item.IsOk(), _T("invalid item in wxGenericTreeCtrl::DrawLine") );
2249
2250 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2251
2252 wxClientDC dc(this);
2253 PrepareDC( dc );
2254 dc.SetLogicalFunction(wxINVERT);
2255
2256 int x = i->GetX(),
2257 y = i->GetY();
2258 if ( below )
2259 {
2260 y += GetLineHeight(i) - 1;
2261 }
2262
2263 dc.DrawLine( x, y, x + i->GetWidth(), y);
2264}
2265
2266// -----------------------------------------------------------------------------
2267// wxWindows callbacks
2268// -----------------------------------------------------------------------------
2269
2270void wxGenericTreeCtrl::OnPaint( wxPaintEvent &WXUNUSED(event) )
2271{
2272 wxPaintDC dc(this);
2273 PrepareDC( dc );
2274
2275 if ( !m_anchor)
2276 return;
2277
2278 dc.SetFont( m_normalFont );
2279 dc.SetPen( m_dottedPen );
2280
2281 // this is now done dynamically
2282 //if(GetImageList() == NULL)
2283 // m_lineHeight = (int)(dc.GetCharHeight() + 4);
2284
2285 int y = 2;
2286 PaintLevel( m_anchor, dc, 0, y );
2287}
2288
2289void wxGenericTreeCtrl::OnSetFocus( wxFocusEvent &event )
2290{
2291 m_hasFocus = TRUE;
2292
2293 RefreshSelected();
2294
2295 event.Skip();
2296}
2297
2298void wxGenericTreeCtrl::OnKillFocus( wxFocusEvent &event )
2299{
2300 m_hasFocus = FALSE;
2301
2302 RefreshSelected();
2303
2304 event.Skip();
2305}
2306
2307void wxGenericTreeCtrl::OnChar( wxKeyEvent &event )
2308{
2309 wxTreeEvent te( wxEVT_COMMAND_TREE_KEY_DOWN, GetId() );
2310 te.m_evtKey = event;
2311 te.SetEventObject( this );
2312 if ( GetEventHandler()->ProcessEvent( te ) )
2313 {
2314 // intercepted by the user code
2315 return;
2316 }
2317
2318 if ( (m_current == 0) || (m_key_current == 0) )
2319 {
2320 event.Skip();
2321 return;
2322 }
2323
2324 // how should the selection work for this event?
2325 bool is_multiple, extended_select, unselect_others;
2326 EventFlagsToSelType(GetWindowStyleFlag(),
2327 event.ShiftDown(),
2328 event.ControlDown(),
2329 is_multiple, extended_select, unselect_others);
2330
2331 // + : Expand
2332 // - : Collaspe
2333 // * : Expand all/Collapse all
2334 // ' ' | return : activate
2335 // up : go up (not last children!)
2336 // down : go down
2337 // left : go to parent
2338 // right : open if parent and go next
2339 // home : go to root
2340 // end : go to last item without opening parents
2341 switch (event.KeyCode())
2342 {
2343 case '+':
2344 case WXK_ADD:
2345 if (m_current->HasPlus() && !IsExpanded(m_current))
2346 {
2347 Expand(m_current);
2348 }
2349 break;
2350
2351 case '*':
2352 case WXK_MULTIPLY:
2353 if ( !IsExpanded(m_current) )
2354 {
2355 // expand all
2356 ExpandAll(m_current);
2357 break;
2358 }
2359 //else: fall through to Collapse() it
2360
2361 case '-':
2362 case WXK_SUBTRACT:
2363 if (IsExpanded(m_current))
2364 {
2365 Collapse(m_current);
2366 }
2367 break;
2368
2369 case ' ':
2370 case WXK_RETURN:
2371 {
2372 wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() );
2373 event.m_item = (long) m_current;
2374 event.SetEventObject( this );
2375 GetEventHandler()->ProcessEvent( event );
2376 }
2377 break;
2378
2379 // up goes to the previous sibling or to the last
2380 // of its children if it's expanded
2381 case WXK_UP:
2382 {
2383 wxTreeItemId prev = GetPrevSibling( m_key_current );
2384 if (!prev)
2385 {
2386 prev = GetParent( m_key_current );
2387 if ((prev == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT))
2388 {
2389 break; // don't go to root if it is hidden
2390 }
2391 if (prev)
2392 {
2393 long cookie = 0;
2394 wxTreeItemId current = m_key_current;
2395 // TODO: Huh? If we get here, we'd better be the first child of our parent. How else could it be?
2396 if (current == GetFirstChild( prev, cookie ))
2397 {
2398 // otherwise we return to where we came from
2399 SelectItem( prev, unselect_others, extended_select );
2400 m_key_current= (wxGenericTreeItem*) prev.m_pItem;
2401 EnsureVisible( prev );
2402 break;
2403 }
2404 }
2405 }
2406 if (prev)
2407 {
2408 while ( IsExpanded(prev) && HasChildren(prev) )
2409 {
2410 wxTreeItemId child = GetLastChild(prev);
2411 if ( child )
2412 {
2413 prev = child;
2414 }
2415 }
2416
2417 SelectItem( prev, unselect_others, extended_select );
2418 m_key_current=(wxGenericTreeItem*) prev.m_pItem;
2419 EnsureVisible( prev );
2420 }
2421 }
2422 break;
2423
2424 // left arrow goes to the parent
2425 case WXK_LEFT:
2426 {
2427 wxTreeItemId prev = GetParent( m_current );
2428 if ((prev == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT))
2429 {
2430 // don't go to root if it is hidden
2431 prev = GetPrevSibling( m_current );
2432 }
2433 if (prev)
2434 {
2435 EnsureVisible( prev );
2436 SelectItem( prev, unselect_others, extended_select );
2437 }
2438 }
2439 break;
2440
2441 case WXK_RIGHT:
2442 // this works the same as the down arrow except that we
2443 // also expand the item if it wasn't expanded yet
2444 Expand(m_current);
2445 // fall through
2446
2447 case WXK_DOWN:
2448 {
2449 if (IsExpanded(m_key_current) && HasChildren(m_key_current))
2450 {
2451 long cookie = 0;
2452 wxTreeItemId child = GetFirstChild( m_key_current, cookie );
2453 SelectItem( child, unselect_others, extended_select );
2454 m_key_current=(wxGenericTreeItem*) child.m_pItem;
2455 EnsureVisible( child );
2456 }
2457 else
2458 {
2459 wxTreeItemId next = GetNextSibling( m_key_current );
2460 if (!next)
2461 {
2462 wxTreeItemId current = m_key_current;
2463 while (current && !next)
2464 {
2465 current = GetParent( current );
2466 if (current) next = GetNextSibling( current );
2467 }
2468 }
2469 if (next)
2470 {
2471 SelectItem( next, unselect_others, extended_select );
2472 m_key_current=(wxGenericTreeItem*) next.m_pItem;
2473 EnsureVisible( next );
2474 }
2475 }
2476 }
2477 break;
2478
2479 // <End> selects the last visible tree item
2480 case WXK_END:
2481 {
2482 wxTreeItemId last = GetRootItem();
2483
2484 while ( last.IsOk() && IsExpanded(last) )
2485 {
2486 wxTreeItemId lastChild = GetLastChild(last);
2487
2488 // it may happen if the item was expanded but then all of
2489 // its children have been deleted - so IsExpanded() returned
2490 // TRUE, but GetLastChild() returned invalid item
2491 if ( !lastChild )
2492 break;
2493
2494 last = lastChild;
2495 }
2496
2497 if ( last.IsOk() )
2498 {
2499 EnsureVisible( last );
2500 SelectItem( last, unselect_others, extended_select );
2501 }
2502 }
2503 break;
2504
2505 // <Home> selects the root item
2506 case WXK_HOME:
2507 {
2508 wxTreeItemId prev = GetRootItem();
2509 if (!prev) break;
2510 if (HasFlag(wxTR_HIDE_ROOT))
2511 {
2512 long dummy;
2513 prev = GetFirstChild(prev, dummy);
2514 if (!prev) break;
2515 }
2516 EnsureVisible( prev );
2517 SelectItem( prev, unselect_others, extended_select );
2518 }
2519 break;
2520
2521 default:
2522 event.Skip();
2523 }
2524}
2525
2526wxTreeItemId wxGenericTreeCtrl::HitTest(const wxPoint& point, int& flags)
2527{
2528 // JACS: removed wxYieldIfNeeded() because it can cause the window
2529 // to be deleted from under us if a close window event is pending
2530
2531 int w, h;
2532 GetSize(&w, &h);
2533 flags=0;
2534 if (point.x<0) flags |= wxTREE_HITTEST_TOLEFT;
2535 if (point.x>w) flags |= wxTREE_HITTEST_TORIGHT;
2536 if (point.y<0) flags |= wxTREE_HITTEST_ABOVE;
2537 if (point.y>h) flags |= wxTREE_HITTEST_BELOW;
2538 if (flags) return wxTreeItemId();
2539
2540 if (m_anchor == NULL)
2541 {
2542 flags = wxTREE_HITTEST_NOWHERE;
2543 return wxTreeItemId();
2544 }
2545
2546 wxClientDC dc(this);
2547 PrepareDC(dc);
2548 wxCoord x = dc.DeviceToLogicalX( point.x );
2549 wxCoord y = dc.DeviceToLogicalY( point.y );
2550 wxGenericTreeItem *hit = m_anchor->HitTest(wxPoint(x, y),
2551 this,
2552 flags,
2553 0 );
2554 if (hit == NULL)
2555 {
2556 flags = wxTREE_HITTEST_NOWHERE;
2557 return wxTreeItemId();
2558 }
2559 return hit;
2560}
2561
2562// get the bounding rectangle of the item (or of its label only)
2563bool wxGenericTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
2564 wxRect& rect,
2565 bool WXUNUSED(textOnly)) const
2566{
2567 wxCHECK_MSG( item.IsOk(), FALSE, _T("invalid item in wxGenericTreeCtrl::GetBoundingRect") );
2568
2569 wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2570
2571 int startX, startY;
2572 GetViewStart(& startX, & startY);
2573
2574 rect.x = i->GetX() - startX*PIXELS_PER_UNIT;
2575 rect.y = i->GetY() - startY*PIXELS_PER_UNIT;
2576 rect.width = i->GetWidth();
2577 //rect.height = i->GetHeight();
2578 rect.height = GetLineHeight(i);
2579
2580 return TRUE;
2581}
2582
2583/* **** */
2584
2585void wxGenericTreeCtrl::Edit( const wxTreeItemId& item )
2586{
2587 if (!item.IsOk()) return;
2588
2589 m_currentEdit = (wxGenericTreeItem*) item.m_pItem;
2590
2591 wxTreeEvent te( wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, GetId() );
2592 te.m_item = (long) m_currentEdit;
2593 te.SetEventObject( this );
2594 GetEventHandler()->ProcessEvent( te );
2595
2596 if (!te.IsAllowed()) return;
2597
2598 // We have to call this here because the label in
2599 // question might just have been added and no screen
2600 // update taken place.
2601 if (m_dirty) wxYieldIfNeeded();
2602
2603 wxString s = m_currentEdit->GetText();
2604 int x = m_currentEdit->GetX();
2605 int y = m_currentEdit->GetY();
2606 int w = m_currentEdit->GetWidth();
2607 int h = m_currentEdit->GetHeight();
2608
2609 int image_h = 0;
2610 int image_w = 0;
2611
2612 int image = m_currentEdit->GetCurrentImage();
2613 if ( image != NO_IMAGE )
2614 {
2615 if ( m_imageListNormal )
2616 {
2617 m_imageListNormal->GetSize( image, image_w, image_h );
2618 image_w += 4;
2619 }
2620 else
2621 {
2622 wxFAIL_MSG(_T("you must create an image list to use images!"));
2623 }
2624 }
2625 x += image_w;
2626 w -= image_w + 4; // I don't know why +4 is needed
2627
2628 wxClientDC dc(this);
2629 PrepareDC( dc );
2630 x = dc.LogicalToDeviceX( x );
2631 y = dc.LogicalToDeviceY( y );
2632
2633 wxTreeTextCtrl *text = new wxTreeTextCtrl(this, -1,
2634 &m_renameAccept,
2635 &m_renameRes,
2636 this,
2637 s,
2638 wxPoint(x-4,y-4),
2639 wxSize(w+11,h+8));
2640 text->SetFocus();
2641}
2642
2643void wxGenericTreeCtrl::OnRenameTimer()
2644{
2645 Edit( m_current );
2646}
2647
2648void wxGenericTreeCtrl::OnRenameAccept()
2649{
2650 // TODO if the validator fails this causes a crash
2651 wxTreeEvent le( wxEVT_COMMAND_TREE_END_LABEL_EDIT, GetId() );
2652 le.m_item = (long) m_currentEdit;
2653 le.SetEventObject( this );
2654 le.m_label = m_renameRes;
2655 GetEventHandler()->ProcessEvent( le );
2656
2657 if (!le.IsAllowed()) return;
2658
2659 SetItemText( m_currentEdit, m_renameRes );
2660}
2661
2662void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event )
2663{
2664 if ( !m_anchor ) return;
2665
2666 // we process left mouse up event (enables in-place edit), right down
2667 // (pass to the user code), left dbl click (activate item) and
2668 // dragging/moving events for items drag-and-drop
2669 if ( !(event.LeftDown() ||
2670 event.LeftUp() ||
2671 event.RightDown() ||
2672 event.LeftDClick() ||
2673 event.Dragging() ||
2674 ((event.Moving() || event.RightUp()) && m_isDragging)) )
2675 {
2676 event.Skip();
2677
2678 return;
2679 }
2680
2681 wxClientDC dc(this);
2682 PrepareDC(dc);
2683 wxCoord x = dc.DeviceToLogicalX( event.GetX() );
2684 wxCoord y = dc.DeviceToLogicalY( event.GetY() );
2685
2686 int flags = 0;
2687 wxGenericTreeItem *item = m_anchor->HitTest( wxPoint(x,y),
2688 this,
2689 flags,
2690 0 );
2691
2692 if ( event.Dragging() && !m_isDragging )
2693 {
2694 if (m_dragCount == 0)
2695 m_dragStart = wxPoint(x,y);
2696
2697 m_dragCount++;
2698
2699 if (m_dragCount != 3)
2700 {
2701 // wait until user drags a bit further...
2702 return;
2703 }
2704
2705 wxEventType command = event.RightIsDown()
2706 ? wxEVT_COMMAND_TREE_BEGIN_RDRAG
2707 : wxEVT_COMMAND_TREE_BEGIN_DRAG;
2708
2709 wxTreeEvent nevent( command, GetId() );
2710 nevent.m_item = (long) m_current;
2711 nevent.SetEventObject(this);
2712
2713 // by default the dragging is not supported, the user code must
2714 // explicitly allow the event for it to take place
2715 nevent.Veto();
2716
2717 if ( GetEventHandler()->ProcessEvent(nevent) && nevent.IsAllowed() )
2718 {
2719 // we're going to drag this item
2720 m_isDragging = TRUE;
2721
2722 // remember the old cursor because we will change it while
2723 // dragging
2724 m_oldCursor = m_cursor;
2725
2726 // in a single selection control, hide the selection temporarily
2727 if ( !(GetWindowStyleFlag() & wxTR_MULTIPLE) )
2728 {
2729 m_oldSelection = (wxGenericTreeItem*) GetSelection().m_pItem;
2730
2731 if ( m_oldSelection )
2732 {
2733 m_oldSelection->SetHilight(FALSE);
2734 RefreshLine(m_oldSelection);
2735 }
2736 }
2737
2738 CaptureMouse();
2739 }
2740 }
2741 else if ( event.Moving() )
2742 {
2743 if ( item != m_dropTarget )
2744 {
2745 // unhighlight the previous drop target
2746 DrawDropEffect(m_dropTarget);
2747
2748 m_dropTarget = item;
2749
2750 // highlight the current drop target if any
2751 DrawDropEffect(m_dropTarget);
2752
2753 wxYieldIfNeeded();
2754 }
2755 }
2756 else if ( (event.LeftUp() || event.RightUp()) && m_isDragging )
2757 {
2758 // erase the highlighting
2759 DrawDropEffect(m_dropTarget);
2760
2761 if ( m_oldSelection )
2762 {
2763 m_oldSelection->SetHilight(TRUE);
2764 RefreshLine(m_oldSelection);
2765 m_oldSelection = (wxGenericTreeItem *)NULL;
2766 }
2767
2768 // generate the drag end event
2769 wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, GetId());
2770
2771 event.m_item = (long) item;
2772 event.m_pointDrag = wxPoint(x, y);
2773 event.SetEventObject(this);
2774
2775 (void)GetEventHandler()->ProcessEvent(event);
2776
2777 m_isDragging = FALSE;
2778 m_dropTarget = (wxGenericTreeItem *)NULL;
2779
2780 ReleaseMouse();
2781
2782 SetCursor(m_oldCursor);
2783
2784 wxYieldIfNeeded();
2785 }
2786 else
2787 {
2788 // here we process only the messages which happen on tree items
2789
2790 m_dragCount = 0;
2791
2792 if (item == NULL) return; /* we hit the blank area */
2793
2794 if ( event.RightDown() )
2795 {
2796 wxTreeEvent nevent(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, GetId());
2797 nevent.m_item = (long) item;
2798 CalcScrolledPosition(x, y,
2799 &nevent.m_pointDrag.x,
2800 &nevent.m_pointDrag.y);
2801 nevent.SetEventObject(this);
2802 GetEventHandler()->ProcessEvent(nevent);
2803 }
2804 else if ( event.LeftUp() )
2805 {
2806 if ( m_lastOnSame )
2807 {
2808 if ( (item == m_current) &&
2809 (flags & wxTREE_HITTEST_ONITEMLABEL) &&
2810 HasFlag(wxTR_EDIT_LABELS) )
2811 {
2812 if ( m_renameTimer->IsRunning() )
2813 m_renameTimer->Stop();
2814
2815 m_renameTimer->Start( 100, TRUE );
2816 }
2817
2818 m_lastOnSame = FALSE;
2819 }
2820 }
2821 else // !RightDown() && !LeftUp() ==> LeftDown() || LeftDClick()
2822 {
2823 if ( event.LeftDown() )
2824 {
2825 m_lastOnSame = item == m_current;
2826 }
2827
2828 if ( flags & wxTREE_HITTEST_ONITEMBUTTON )
2829 {
2830 // only toggle the item for a single click, double click on
2831 // the button doesn't do anything (it toggles the item twice)
2832 if ( event.LeftDown() )
2833 {
2834 Toggle( item );
2835 }
2836
2837 // don't select the item if the button was clicked
2838 return;
2839 }
2840
2841 // how should the selection work for this event?
2842 bool is_multiple, extended_select, unselect_others;
2843 EventFlagsToSelType(GetWindowStyleFlag(),
2844 event.ShiftDown(),
2845 event.ControlDown(),
2846 is_multiple, extended_select, unselect_others);
2847
2848 SelectItem(item, unselect_others, extended_select);
2849
2850 // For some reason, Windows isn't recognizing a left double-click,
2851 // so we need to simulate it here. Allow 200 milliseconds for now.
2852 if ( event.LeftDClick() )
2853 {
2854 // double clicking should not start editing the item label
2855 m_renameTimer->Stop();
2856 m_lastOnSame = FALSE;
2857
2858 // send activate event first
2859 wxTreeEvent nevent( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() );
2860 nevent.m_item = (long) item;
2861 CalcScrolledPosition(x, y,
2862 &nevent.m_pointDrag.x,
2863 &nevent.m_pointDrag.y);
2864 nevent.SetEventObject( this );
2865 if ( !GetEventHandler()->ProcessEvent( nevent ) )
2866 {
2867 // if the user code didn't process the activate event,
2868 // handle it ourselves by toggling the item when it is
2869 // double clicked
2870 if ( item->HasPlus() )
2871 {
2872 Toggle(item);
2873 }
2874 }
2875 }
2876 }
2877 }
2878}
2879
2880void wxGenericTreeCtrl::OnIdle( wxIdleEvent &WXUNUSED(event) )
2881{
2882 /* after all changes have been done to the tree control,
2883 * we actually redraw the tree when everything is over */
2884
2885 if (!m_dirty) return;
2886
2887 m_dirty = FALSE;
2888
2889 CalculatePositions();
2890 Refresh();
2891 AdjustMyScrollbars();
2892}
2893
2894void wxGenericTreeCtrl::CalculateSize( wxGenericTreeItem *item, wxDC &dc )
2895{
2896 wxCoord text_w = 0;
2897 wxCoord text_h = 0;
2898
2899 wxTreeItemAttr *attr = item->GetAttributes();
2900 if ( attr && attr->HasFont() )
2901 dc.SetFont(attr->GetFont());
2902 else if ( item->IsBold() )
2903 dc.SetFont(m_boldFont);
2904
2905 dc.GetTextExtent( item->GetText(), &text_w, &text_h );
2906 text_h+=2;
2907
2908 // restore normal font
2909 dc.SetFont( m_normalFont );
2910
2911 int image_h = 0;
2912 int image_w = 0;
2913 int image = item->GetCurrentImage();
2914 if ( image != NO_IMAGE )
2915 {
2916 if ( m_imageListNormal )
2917 {
2918 m_imageListNormal->GetSize( image, image_w, image_h );
2919 image_w += 4;
2920 }
2921 }
2922
2923 int total_h = (image_h > text_h) ? image_h : text_h;
2924
2925 if (total_h < 30)
2926 total_h += 2; // at least 2 pixels
2927 else
2928 total_h += total_h/10; // otherwise 10% extra spacing
2929
2930 item->SetHeight(total_h);
2931 if (total_h>m_lineHeight)
2932 m_lineHeight=total_h;
2933
2934 item->SetWidth(image_w+text_w+2);
2935}
2936
2937// -----------------------------------------------------------------------------
2938// for developper : y is now the top of the level
2939// not the middle of it !
2940void wxGenericTreeCtrl::CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y )
2941{
2942 int x = level*m_indent;
2943 if (!HasFlag(wxTR_HIDE_ROOT))
2944 {
2945 x += m_indent;
2946 }
2947 else if (level == 0)
2948 {
2949 // a hidden root is not evaluated, but its
2950 // children are always calculated
2951 goto Recurse;
2952 }
2953
2954 CalculateSize( item, dc );
2955
2956 // set its position
2957 item->SetX( x+m_spacing );
2958 item->SetY( y );
2959 y += GetLineHeight(item);
2960
2961 if ( !item->IsExpanded() )
2962 {
2963 // we don't need to calculate collapsed branches
2964 return;
2965 }
2966
2967 Recurse:
2968 wxArrayGenericTreeItems& children = item->GetChildren();
2969 size_t n, count = children.Count();
2970 ++level;
2971 for (n = 0; n < count; ++n )
2972 CalculateLevel( children[n], dc, level, y ); // recurse
2973}
2974
2975void wxGenericTreeCtrl::CalculatePositions()
2976{
2977 if ( !m_anchor ) return;
2978
2979 wxClientDC dc(this);
2980 PrepareDC( dc );
2981
2982 dc.SetFont( m_normalFont );
2983
2984 dc.SetPen( m_dottedPen );
2985 //if(GetImageList() == NULL)
2986 // m_lineHeight = (int)(dc.GetCharHeight() + 4);
2987
2988 int y = 2;
2989 CalculateLevel( m_anchor, dc, 0, y ); // start recursion
2990}
2991
2992void wxGenericTreeCtrl::RefreshSubtree(wxGenericTreeItem *item)
2993{
2994 if (m_dirty) return;
2995
2996 wxClientDC dc(this);
2997 PrepareDC(dc);
2998
2999 int cw = 0;
3000 int ch = 0;
3001 GetClientSize( &cw, &ch );
3002
3003 wxRect rect;
3004 rect.x = dc.LogicalToDeviceX( 0 );
3005 rect.width = cw;
3006 rect.y = dc.LogicalToDeviceY( item->GetY() );
3007 rect.height = ch;
3008
3009 Refresh( TRUE, &rect );
3010
3011 AdjustMyScrollbars();
3012}
3013
3014void wxGenericTreeCtrl::RefreshLine( wxGenericTreeItem *item )
3015{
3016 if (m_dirty) return;
3017
3018 wxClientDC dc(this);
3019 PrepareDC( dc );
3020
3021 int cw = 0;
3022 int ch = 0;
3023 GetClientSize( &cw, &ch );
3024
3025 wxRect rect;
3026 rect.x = dc.LogicalToDeviceX( 0 );
3027 rect.y = dc.LogicalToDeviceY( item->GetY() );
3028 rect.width = cw;
3029 rect.height = GetLineHeight(item); //dc.GetCharHeight() + 6;
3030
3031 Refresh( TRUE, &rect );
3032}
3033
3034void wxGenericTreeCtrl::RefreshSelected()
3035{
3036 // TODO: this is awfully inefficient, we should keep the list of all
3037 // selected items internally, should be much faster
3038 if ( m_anchor )
3039 RefreshSelectedUnder(m_anchor);
3040}
3041
3042void wxGenericTreeCtrl::RefreshSelectedUnder(wxGenericTreeItem *item)
3043{
3044 if ( item->IsSelected() )
3045 RefreshLine(item);
3046
3047 const wxArrayGenericTreeItems& children = item->GetChildren();
3048 size_t count = children.GetCount();
3049 for ( size_t n = 0; n < count; n++ )
3050 {
3051 RefreshSelectedUnder(children[n]);
3052 }
3053}
3054
3055// ----------------------------------------------------------------------------
3056// changing colours: we need to refresh the tree control
3057// ----------------------------------------------------------------------------
3058
3059bool wxGenericTreeCtrl::SetBackgroundColour(const wxColour& colour)
3060{
3061 if ( !wxWindow::SetBackgroundColour(colour) )
3062 return FALSE;
3063
3064 Refresh();
3065
3066 return TRUE;
3067}
3068
3069bool wxGenericTreeCtrl::SetForegroundColour(const wxColour& colour)
3070{
3071 if ( !wxWindow::SetForegroundColour(colour) )
3072 return FALSE;
3073
3074 Refresh();
3075
3076 return TRUE;
3077}
3078
3079#endif // wxUSE_TREECTRL
wxWidgets (Impactor)