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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: treectrl.cpp
3 // Purpose: wxTreeCtrl sample
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart and Markus Holzem
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
11
12 // important: the #pragma argument must be different from treectrl.cpp,
13 // otherwise gcc gets confused (as there is also treectrl.cpp in the library
14 // which has identical #pragma) and the sample crashes on startup!
15 #ifdef __GNUG__
16 #pragma interface "treetest.cpp"
17 #pragma implementation "treetest.cpp"
18 #endif
19
20 // For compilers that support precompilation, includes "wx/wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #ifndef WX_PRECOMP
28 #include "wx/wx.h"
29 #endif
30
31 #include "wx/log.h"
32
33 #include "wx/image.h"
34 #include "wx/imaglist.h"
35 #include "wx/treectrl.h"
36
37 #include "math.h"
38
39 #ifdef __WIN32__
40 // this is not supported by native control
41 #define NO_VARIABLE_HEIGHT
42 #endif
43
44 #include "treectrl.h"
45
46 // under Windows the icons are in the .rc file
47 #ifndef __WXMSW__
48 #include "icon1.xpm"
49 #include "icon2.xpm"
50 #include "icon3.xpm"
51 #include "icon4.xpm"
52 #include "icon5.xpm"
53 #include "mondrian.xpm"
54 #endif
55
56 // verify that the item is ok and insult the user if it is not
57 #define CHECK_ITEM( item ) if ( !item.IsOk() ) { \
58 wxMessageBox("Please select some item first!", \
59 "Tree sample error", \
60 wxOK | wxICON_EXCLAMATION, \
61 this); \
62 return; \
63 }
64
65 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
66 EVT_SIZE(MyFrame::OnSize)
67
68 EVT_MENU(TreeTest_Quit, MyFrame::OnQuit)
69 EVT_MENU(TreeTest_About, MyFrame::OnAbout)
70 EVT_MENU(TreeTest_Dump, MyFrame::OnDump)
71 #ifndef NO_MULTIPLE_SELECTION
72 EVT_MENU(TreeTest_DumpSelected, MyFrame::OnDumpSelected)
73 EVT_MENU(TreeTest_Select, MyFrame::OnSelect)
74 EVT_MENU(TreeTest_Unselect, MyFrame::OnUnselect)
75 EVT_MENU(TreeTest_ToggleSel, MyFrame::OnToggleSel)
76 #endif // NO_MULTIPLE_SELECTION
77 EVT_MENU(TreeTest_Rename, MyFrame::OnRename)
78 EVT_MENU(TreeTest_Count, MyFrame::OnCount)
79 EVT_MENU(TreeTest_CountRec, MyFrame::OnCountRec)
80 EVT_MENU(TreeTest_Sort, MyFrame::OnSort)
81 EVT_MENU(TreeTest_SortRev, MyFrame::OnSortRev)
82 EVT_MENU(TreeTest_Bold, MyFrame::OnSetBold)
83 EVT_MENU(TreeTest_UnBold, MyFrame::OnClearBold)
84 EVT_MENU(TreeTest_Delete, MyFrame::OnDelete)
85 EVT_MENU(TreeTest_DeleteChildren, MyFrame::OnDeleteChildren)
86 EVT_MENU(TreeTest_DeleteAll, MyFrame::OnDeleteAll)
87 EVT_MENU(TreeTest_Recreate, MyFrame::OnRecreate)
88 EVT_MENU(TreeTest_ToggleImages, MyFrame::OnToggleImages)
89 EVT_MENU(TreeTest_SetImageSize, MyFrame::OnSetImageSize)
90 EVT_MENU(TreeTest_CollapseAndReset, MyFrame::OnCollapseAndReset)
91 EVT_MENU(TreeTest_EnsureVisible, MyFrame::OnEnsureVisible)
92 EVT_MENU(TreeTest_AddItem, MyFrame::OnAddItem)
93 EVT_MENU(TreeTest_InsertItem, MyFrame::OnInsertItem)
94 EVT_MENU(TreeTest_IncIndent, MyFrame::OnIncIndent)
95 EVT_MENU(TreeTest_DecIndent, MyFrame::OnDecIndent)
96 EVT_MENU(TreeTest_IncSpacing, MyFrame::OnIncSpacing)
97 EVT_MENU(TreeTest_DecSpacing, MyFrame::OnDecSpacing)
98 EVT_MENU(TreeTest_ToggleIcon, MyFrame::OnToggleIcon)
99 END_EVENT_TABLE()
100
101 #if USE_GENERIC_TREECTRL
102 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
103 #else
104 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
105 #endif
106 EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
107 EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
108 EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
109 EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
110 EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
111 EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
112 #if 0 // there are so many of those that logging them causes flicker
113 EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
114 #endif
115 EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
116 EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
117 EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
118 EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
119 EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
120 EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
121 EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
122 EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
123 EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
124 EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
125 END_EVENT_TABLE()
126
127 IMPLEMENT_APP(MyApp)
128
129 bool MyApp::OnInit()
130 {
131 // Create the main frame window
132 MyFrame *frame = new MyFrame("wxTreeCtrl Test", 50, 50, 450, 600);
133
134 // Show the frame
135 frame->Show(TRUE);
136 SetTopWindow(frame);
137
138 return TRUE;
139 }
140
141
142 // My frame constructor
143 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
144 : wxFrame((wxFrame *)NULL, -1, title, wxPoint(x, y), wxSize(w, h)),
145 m_treeCtrl(NULL), m_textCtrl(NULL)
146 {
147 // This reduces flicker effects - even better would be to define
148 // OnEraseBackground to do nothing. When the tree control's scrollbars are
149 // show or hidden, the frame is sent a background erase event.
150 SetBackgroundColour(wxColour(255, 255, 255));
151
152 // Give it an icon
153 SetIcon(wxICON(mondrian));
154
155 // Make a menubar
156 wxMenu *file_menu = new wxMenu,
157 *tree_menu = new wxMenu,
158 *item_menu = new wxMenu;
159
160 file_menu->Append(TreeTest_About, "&About...");
161 file_menu->AppendSeparator();
162 file_menu->Append(TreeTest_Quit, "E&xit\tAlt-X");
163
164 #ifndef NO_MULTIPLE_SELECTION
165 tree_menu->Append(TreeTest_ToggleSel, "&Toggle selection mode");
166 #endif // NO_MULTIPLE_SELECTION
167 tree_menu->Append(TreeTest_ToggleImages, "&Show images", "", TRUE);
168 tree_menu->Append(TreeTest_SetImageSize, "Set image si&ze...");
169 tree_menu->Append(TreeTest_Recreate, "&Recreate the tree");
170 tree_menu->Append(TreeTest_CollapseAndReset, "C&ollapse and reset");
171 tree_menu->AppendSeparator();
172 tree_menu->Append(TreeTest_AddItem, "Append a &new item");
173 tree_menu->Append(TreeTest_InsertItem, "&Insert a new item");
174 tree_menu->Append(TreeTest_Delete, "&Delete this item");
175 tree_menu->Append(TreeTest_DeleteChildren, "Delete &children");
176 tree_menu->Append(TreeTest_DeleteAll, "Delete &all items");
177 tree_menu->AppendSeparator();
178 tree_menu->Append(TreeTest_Count, "Count children of current item");
179 tree_menu->Append(TreeTest_CountRec, "Recursively count children of current item");
180 tree_menu->AppendSeparator();
181 tree_menu->Append(TreeTest_Sort, "Sort children of current item");
182 tree_menu->Append(TreeTest_SortRev, "Sort in reversed order");
183 tree_menu->AppendSeparator();
184 tree_menu->Append(TreeTest_EnsureVisible, "Make the last item &visible");
185 tree_menu->AppendSeparator();
186 tree_menu->Append(TreeTest_IncIndent, "Add 5 points to indentation\tAlt-I");
187 tree_menu->Append(TreeTest_DecIndent, "Reduce indentation by 5 points\tAlt-R");
188 tree_menu->AppendSeparator();
189 tree_menu->Append(TreeTest_IncSpacing, "Add 5 points to spacing\tCtrl-I");
190 tree_menu->Append(TreeTest_DecSpacing, "Reduce spacing by 5 points\tCtrl-R");
191
192 item_menu->Append(TreeTest_Dump, "&Dump item children");
193 item_menu->Append(TreeTest_Rename, "&Rename item...");
194
195 item_menu->AppendSeparator();
196 item_menu->Append(TreeTest_Bold, "Make item &bold");
197 item_menu->Append(TreeTest_UnBold, "Make item &not bold");
198 item_menu->AppendSeparator();
199 item_menu->Append(TreeTest_ToggleIcon, "Toggle the items &icon");
200
201 #ifndef NO_MULTIPLE_SELECTION
202 item_menu->AppendSeparator();
203 item_menu->Append(TreeTest_DumpSelected, "Dump selected items\tAlt-D");
204 item_menu->Append(TreeTest_Select, "Select current item\tAlt-S");
205 item_menu->Append(TreeTest_Unselect, "Unselect everything\tAlt-U");
206 #endif // NO_MULTIPLE_SELECTION
207
208 wxMenuBar *menu_bar = new wxMenuBar;
209 menu_bar->Append(file_menu, "&File");
210 menu_bar->Append(tree_menu, "&Tree");
211 menu_bar->Append(item_menu, "&Item");
212 SetMenuBar(menu_bar);
213
214 menu_bar->Check(TreeTest_ToggleImages, TRUE);
215
216 m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
217 wxDefaultPosition, wxDefaultSize,
218 wxTR_HAS_BUTTONS | // wxTR_NO_LINES |
219 wxTR_EDIT_LABELS |
220 #ifndef NO_VARIABLE_HEIGHT
221 wxTR_HAS_VARIABLE_ROW_HEIGHT |
222 #endif
223 wxSUNKEN_BORDER);
224
225 m_treeCtrl->SetBackgroundColour(wxColour(204, 205, 79));
226
227 m_textCtrl = new wxTextCtrl(this, -1, "",
228 wxDefaultPosition, wxDefaultSize,
229 wxTE_MULTILINE | wxSUNKEN_BORDER);
230
231 // create a status bar with 3 panes
232 CreateStatusBar(3);
233 SetStatusText("", 0);
234
235 #ifdef __WXMOTIF__
236 // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
237 // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
238 delete wxLog::SetActiveTarget(new wxLogStderr);
239 #else
240 // set our text control as the log target
241 wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
242 delete wxLog::SetActiveTarget(logWindow);
243 #endif
244 }
245
246 MyFrame::~MyFrame()
247 {
248 delete wxLog::SetActiveTarget(NULL);
249 }
250
251 void MyFrame::OnSize(wxSizeEvent& event)
252 {
253 if ( m_treeCtrl && m_textCtrl )
254 {
255 Resize(GetClientSize());
256 }
257
258 event.Skip();
259 }
260
261 void MyFrame::Resize(const wxSize& size)
262 {
263 m_treeCtrl->SetSize(0, 0, size.x, 2*size.y/3);
264 m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
265 }
266
267 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
268 {
269 Close(TRUE);
270 }
271
272 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
273 {
274 wxMessageBox("Tree test sample\n"
275 "(c) Julian Smart 1997, Vadim Zeitlin 1998",
276 "About tree test",
277 wxOK | wxICON_INFORMATION, this);
278 }
279
280 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
281 {
282 wxTreeItemId item = m_treeCtrl->GetSelection();
283
284 CHECK_ITEM( item );
285
286 // old code - now we edit in place
287 #if 0
288 static wxString s_text;
289 s_text = wxGetTextFromUser("New name: ", "Tree sample question",
290 s_text, this);
291 if ( !s_text.IsEmpty() )
292 {
293 m_treeCtrl->SetItemText(item, s_text);
294 }
295 #endif // 0
296
297 // TODO demonstrate creating a custom edit control...
298 (void)m_treeCtrl->EditLabel(item);
299 }
300
301 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
302 {
303 wxTreeItemId item = m_treeCtrl->GetSelection();
304
305 CHECK_ITEM( item );
306
307 int i = m_treeCtrl->GetChildrenCount( item, FALSE );
308
309 wxLogMessage(wxT("%d children"), i);
310 }
311
312 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
313 {
314 wxTreeItemId item = m_treeCtrl->GetSelection();
315
316 CHECK_ITEM( item );
317
318 int i = m_treeCtrl->GetChildrenCount( item );
319
320 wxLogMessage(wxT("%d children"), i);
321 }
322
323 void MyFrame::DoSort(bool reverse)
324 {
325 wxTreeItemId item = m_treeCtrl->GetSelection();
326
327 CHECK_ITEM( item );
328
329 m_treeCtrl->DoSortChildren(item, reverse);
330 }
331
332 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
333 {
334 wxTreeItemId root = m_treeCtrl->GetSelection();
335
336 CHECK_ITEM( root );
337
338 m_treeCtrl->GetItemsRecursively(root, -1);
339 }
340
341 #ifndef NO_MULTIPLE_SELECTION
342
343 void MyFrame::OnToggleSel(wxCommandEvent& WXUNUSED(event))
344 {
345 long style = m_treeCtrl->GetWindowStyle();
346 if ( style & wxTR_MULTIPLE )
347 style &= ~wxTR_MULTIPLE;
348 else
349 style |= wxTR_MULTIPLE;
350
351 delete m_treeCtrl;
352
353 m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
354 wxDefaultPosition, wxDefaultSize,
355 style);
356 Resize(GetClientSize());
357 }
358
359 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
360 {
361 wxArrayTreeItemIds array;
362
363 size_t count = m_treeCtrl->GetSelections(array);
364 wxLogMessage(wxT("%u items selected"), count);
365
366 for ( size_t n = 0; n < count; n++ )
367 {
368 wxLogMessage("\t%s", m_treeCtrl->GetItemText(array.Item(n)).c_str());
369 }
370 }
371
372 void MyFrame::OnSelect(wxCommandEvent& event)
373 {
374 m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
375 }
376
377 void MyFrame::OnUnselect(wxCommandEvent& event)
378 {
379 m_treeCtrl->UnselectAll();
380 }
381
382 #endif // NO_MULTIPLE_SELECTION
383
384 void MyFrame::DoSetBold(bool bold)
385 {
386 wxTreeItemId item = m_treeCtrl->GetSelection();
387
388 CHECK_ITEM( item );
389
390 m_treeCtrl->SetItemBold(item, bold);
391 }
392
393 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
394 {
395 wxTreeItemId item = m_treeCtrl->GetSelection();
396
397 CHECK_ITEM( item );
398
399 m_treeCtrl->Delete(item);
400 }
401
402 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
403 {
404 wxTreeItemId item = m_treeCtrl->GetSelection();
405
406 CHECK_ITEM( item );
407
408 m_treeCtrl->DeleteChildren(item);
409 }
410
411 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
412 {
413 m_treeCtrl->DeleteAllItems();
414 }
415
416 void MyFrame::OnRecreate(wxCommandEvent& event)
417 {
418 OnDeleteAll(event);
419 m_treeCtrl->AddTestItemsToTree(3, 2);
420 }
421
422 void MyFrame::OnSetImageSize(wxCommandEvent& event)
423 {
424 long size = wxGetNumberFromUser("Enter the size for the images to use",
425 "Size: ",
426 "TreeCtrl sample",
427 16);
428 if ( size == -1 )
429 return;
430
431 m_treeCtrl->CreateImageList((int)size);
432
433 OnRecreate(event);
434 }
435
436 void MyFrame::OnToggleImages(wxCommandEvent& event)
437 {
438 if ( wxGetApp().ShowImages() )
439 {
440 m_treeCtrl->CreateImageList(-1);
441
442 wxGetApp().SetShowImages(FALSE);
443 }
444 else
445 {
446 m_treeCtrl->CreateImageList();
447
448 wxGetApp().SetShowImages(TRUE);
449 }
450
451 OnRecreate(event);
452 }
453
454 void MyFrame::OnCollapseAndReset(wxCommandEvent& event)
455 {
456 m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
457 }
458
459 void MyFrame::OnEnsureVisible(wxCommandEvent& event)
460 {
461 m_treeCtrl->DoEnsureVisible();
462 }
463
464 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
465 {
466 int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
467 m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, "2nd item");
468 }
469
470 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
471 {
472 static int s_num = 0;
473
474 wxString text;
475 text.Printf("Item #%d", ++s_num);
476
477 m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
478 text /*,
479 MyTreeCtrl::TreeCtrlIcon_File */ );
480 }
481
482 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
483 {
484 unsigned int indent = m_treeCtrl->GetIndent();
485 if (indent < 100)
486 m_treeCtrl->SetIndent( indent+5 );
487 }
488
489 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
490 {
491 unsigned int indent = m_treeCtrl->GetIndent();
492 if (indent > 10)
493 m_treeCtrl->SetIndent( indent-5 );
494 }
495
496 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
497 {
498 unsigned int indent = m_treeCtrl->GetSpacing();
499 if (indent < 100)
500 m_treeCtrl->SetSpacing( indent+5 );
501 }
502
503 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
504 {
505 unsigned int indent = m_treeCtrl->GetSpacing();
506 if (indent > 10)
507 m_treeCtrl->SetSpacing( indent-5 );
508 }
509
510 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
511 {
512 wxTreeItemId item = m_treeCtrl->GetSelection();
513
514 CHECK_ITEM( item );
515
516 m_treeCtrl->DoToggleIcon(item);
517 }
518
519 // MyTreeCtrl implementation
520 #if USE_GENERIC_TREECTRL
521 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
522 #else
523 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
524 #endif
525
526 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
527 const wxPoint& pos, const wxSize& size,
528 long style)
529 : wxTreeCtrl(parent, id, pos, size, style)
530 {
531 m_reverseSort = FALSE;
532 m_imageListNormal = NULL;
533
534 CreateImageList();
535
536 // Add some items to the tree
537 AddTestItemsToTree(3, 2);
538 }
539
540 void MyTreeCtrl::CreateImageList(int size)
541 {
542 delete m_imageListNormal;
543
544 if ( size == -1 )
545 {
546 m_imageListNormal = NULL;
547 }
548 else
549 {
550 // Make an image list containing small icons
551 m_imageListNormal = new wxImageList(size, size, TRUE);
552
553 // should correspond to TreeCtrlIcon_xxx enum
554 #if defined(__WXMSW__) && defined(__WIN16__)
555 m_imageListNormal->Add(wxBitmap("bitmap1", wxBITMAP_TYPE_BMP_RESOURCE));
556 m_imageListNormal->Add(wxBitmap("bitmap2", wxBITMAP_TYPE_BMP_RESOURCE));
557 m_imageListNormal->Add(wxBitmap("bitmap3", wxBITMAP_TYPE_BMP_RESOURCE));
558 m_imageListNormal->Add(wxBitmap("bitmap4", wxBITMAP_TYPE_BMP_RESOURCE));
559 m_imageListNormal->Add(wxBitmap("bitmap5", wxBITMAP_TYPE_BMP_RESOURCE));
560 #else // !MSW
561 wxIcon icons[5];
562 icons[0] = wxICON(icon1);
563 icons[1] = wxICON(icon2);
564 icons[2] = wxICON(icon3);
565 icons[3] = wxICON(icon4);
566 icons[4] = wxICON(icon5);
567
568 int sizeOrig = icons[0].GetWidth();
569 for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
570 {
571 if ( size == sizeOrig )
572 {
573 m_imageListNormal->Add(icons[i]);
574 }
575 else
576 {
577 m_imageListNormal->Add(wxImage(icons[i]).Rescale(size, size).
578 ConvertToBitmap());
579 }
580 }
581 #endif // MSW/!MSW
582 }
583
584 SetImageList(m_imageListNormal);
585 }
586
587 MyTreeCtrl::~MyTreeCtrl()
588 {
589 delete m_imageListNormal;
590 }
591
592 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
593 const wxTreeItemId& item2)
594 {
595 if ( m_reverseSort )
596 {
597 // just exchange 1st and 2nd items
598 return wxTreeCtrl::OnCompareItems(item2, item1);
599 }
600 else
601 {
602 return wxTreeCtrl::OnCompareItems(item1, item2);
603 }
604 }
605
606 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
607 size_t numChildren,
608 size_t depth,
609 size_t folder)
610 {
611 if ( depth > 0 )
612 {
613 bool hasChildren = depth > 1;
614
615 wxString str;
616 for ( size_t n = 0; n < numChildren; n++ )
617 {
618 // at depth 1 elements won't have any more children
619 if ( hasChildren )
620 str.Printf("%s child %d", "Folder", n + 1);
621 else
622 str.Printf("%s child %d.%d", "File", folder, n + 1);
623
624 // here we pass to AppendItem() normal and selected item images (we
625 // suppose that selected image follows the normal one in the enum)
626 int image, imageSel;
627 if ( wxGetApp().ShowImages() )
628 {
629 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
630 imageSel = image + 1;
631 }
632 else
633 {
634 image = imageSel = -1;
635 }
636 wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
637 new MyTreeItemData(str));
638
639 // and now we also set the expanded one (only for the folders)
640 if ( hasChildren && wxGetApp().ShowImages() )
641 {
642 SetItemImage(id, TreeCtrlIcon_FolderOpened,
643 wxTreeItemIcon_Expanded);
644 }
645
646 // remember the last child for OnEnsureVisible()
647 if ( !hasChildren && n == numChildren - 1 )
648 {
649 m_lastItem = id;
650 }
651
652 AddItemsRecursively(id, numChildren, depth - 1, n + 1);
653 }
654 }
655 //else: done!
656 }
657
658 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
659 size_t depth)
660 {
661 int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
662 wxTreeItemId rootId = AddRoot("Root",
663 image, image,
664 new MyTreeItemData("Root item"));
665 if ( image != -1 )
666 {
667 SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
668 }
669
670 AddItemsRecursively(rootId, numChildren, depth, 0);
671
672 // set some colours/fonts for testing
673 SetItemFont(rootId, *wxITALIC_FONT);
674
675 long cookie;
676 wxTreeItemId id = GetFirstChild(rootId, cookie);
677 SetItemTextColour(id, *wxBLUE);
678
679 id = GetNextChild(rootId, cookie);
680 id = GetNextChild(rootId, cookie);
681 SetItemTextColour(id, *wxRED);
682 SetItemBackgroundColour(id, *wxLIGHT_GREY);
683 }
684
685 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent, long cookie)
686 {
687 wxTreeItemId id;
688
689 if( cookie == -1 )
690 id = GetFirstChild(idParent, cookie);
691 else
692 id = GetNextChild(idParent, cookie);
693
694 if(id <= 0)
695 return;
696
697 wxString text = GetItemText(id);
698 wxLogMessage(text);
699
700 if (ItemHasChildren(id))
701 GetItemsRecursively(id,-1);
702
703 GetItemsRecursively(idParent, cookie);
704 }
705
706 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
707 {
708 int image = GetItemImage(item) == TreeCtrlIcon_Folder ? TreeCtrlIcon_File
709 : TreeCtrlIcon_Folder;
710
711 SetItemImage(item, image);
712 }
713
714
715 // avoid repetition
716 #define TREE_EVENT_HANDLER(name) \
717 void MyTreeCtrl::name(wxTreeEvent& event) \
718 { \
719 wxLogMessage(#name); \
720 event.Skip(); \
721 }
722
723 TREE_EVENT_HANDLER(OnBeginRDrag)
724 TREE_EVENT_HANDLER(OnDeleteItem)
725 TREE_EVENT_HANDLER(OnGetInfo)
726 TREE_EVENT_HANDLER(OnSetInfo)
727 TREE_EVENT_HANDLER(OnItemExpanded)
728 TREE_EVENT_HANDLER(OnItemExpanding)
729 TREE_EVENT_HANDLER(OnItemCollapsed)
730 TREE_EVENT_HANDLER(OnSelChanged)
731 TREE_EVENT_HANDLER(OnSelChanging)
732 TREE_EVENT_HANDLER(OnTreeKeyDown)
733
734 #undef TREE_EVENT_HANDLER
735
736 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
737 {
738 // need to explicitly allow drag
739 if ( event.GetItem() != GetRootItem() )
740 {
741 m_draggedItem = event.GetItem();
742
743 wxLogMessage("OnBeginDrag: started dragging %s",
744 GetItemText(m_draggedItem).c_str());
745
746 event.Allow();
747 }
748 else
749 {
750 wxLogMessage("OnBeginDrag: this item can't be dragged.");
751 }
752 }
753
754 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
755 {
756 wxTreeItemId itemSrc = m_draggedItem,
757 itemDst = event.GetItem();
758 m_draggedItem = (wxTreeItemId)0l;
759
760 // where to copy the item?
761 if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
762 {
763 // copy to the parent then
764 itemDst = GetParent(itemDst);
765 }
766
767 if ( !itemDst.IsOk() )
768 {
769 wxLogMessage("OnEndDrag: can't drop here.");
770
771 return;
772 }
773
774 wxString text = GetItemText(itemSrc);
775 wxLogMessage("OnEndDrag: '%s' copied to '%s'.",
776 text.c_str(), GetItemText(itemDst).c_str());
777
778 // just do append here - we could also insert it just before/after the item
779 // on which it was dropped, but this requires slightly more work... we also
780 // completely ignore the client data and icon of the old item but could
781 // copy them as well.
782 //
783 // Finally, we only copy one item here but we might copy the entire tree if
784 // we were dragging a folder.
785 int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
786 AppendItem(itemDst, text, image);
787 }
788
789 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
790 {
791 wxLogMessage("OnBeginLabelEdit");
792
793 // for testing, prevent this items label editing
794 wxTreeItemId itemId = event.GetItem();
795 if ( IsTestItem(itemId) )
796 {
797 wxMessageBox("You can't edit this item.");
798
799 event.Veto();
800 }
801 }
802
803 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
804 {
805 wxLogMessage("OnEndLabelEdit");
806
807 // don't allow anything except letters in the labels
808 if ( !event.GetLabel().IsWord() )
809 {
810 wxMessageBox("The label should contain only letters.");
811
812 event.Veto();
813 }
814 }
815
816 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
817 {
818 wxLogMessage("OnItemCollapsing");
819
820 // for testing, prevent the user from collapsing the first child folder
821 wxTreeItemId itemId = event.GetItem();
822 if ( IsTestItem(itemId) )
823 {
824 wxMessageBox("You can't collapse this item.");
825
826 event.Veto();
827 }
828 }
829
830 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
831 {
832 // show some info about this item
833 wxTreeItemId itemId = event.GetItem();
834 MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
835
836 if ( item != NULL )
837 {
838 item->ShowInfo(this);
839 }
840
841 wxLogMessage("OnItemActivated");
842 }
843
844 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
845 {
846 wxTreeItemId id = HitTest(event.GetPosition());
847 if ( !id )
848 wxLogMessage("No item under mouse");
849 else
850 {
851 MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
852 if ( item )
853 wxLogMessage("Item '%s' under mouse", item->GetDesc());
854 }
855 }
856
857 static inline const char *Bool2String(bool b)
858 {
859 return b ? "" : "not ";
860 }
861
862 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
863 {
864 wxLogMessage("Item '%s': %sselected, %sexpanded, %sbold,\n"
865 "%u children (%u immediately under this item).",
866 m_desc.c_str(),
867 Bool2String(tree->IsSelected(GetId())),
868 Bool2String(tree->IsExpanded(GetId())),
869 Bool2String(tree->IsBold(GetId())),
870 tree->GetChildrenCount(GetId()),
871 tree->GetChildrenCount(GetId(), FALSE));
872 }