samples/treectrl/treetest.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        treetest.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
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13   #pragma implementation
  14   #pragma interface
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx/wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21   #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25   #include "wx/wx.h"
  26   #include "wx/log.h"
  27 #endif
  28
  29 #include "wx/colordlg.h"
  30
  31 #include "wx/image.h"
  32 #include "wx/imaglist.h"
  33 #include "wx/treectrl.h"
  34
  35 #include "math.h"
  36
  37 #ifdef __WIN32__
  38     // this is not supported by native control
  39     #define NO_VARIABLE_HEIGHT
  40 #endif
  41
  42 #include "treetest.h"
  43
  44 #include "icon1.xpm"
  45 #include "icon2.xpm"
  46 #include "icon3.xpm"
  47 #include "icon4.xpm"
  48 #include "icon5.xpm"
  49 #include "mondrian.xpm"
  50
  51
  52 // verify that the item is ok and insult the user if it is not
  53 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  54                              wxMessageBox(wxT("Please select some item first!"), \
  55                                           wxT("Tree sample error"),              \
  56                                           wxOK | wxICON_EXCLAMATION,             \
  57                                           this);                                 \
  58                              return;                                             \
  59                            }
  60
  61 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  62
  63 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  64     EVT_IDLE(MyFrame::OnIdle)
  65     EVT_SIZE(MyFrame::OnSize)
  66
  67     MENU_LINK(Quit)
  68     MENU_LINK(About)
  69
  70     MENU_LINK(TogButtons)
  71     MENU_LINK(TogTwist)
  72     MENU_LINK(TogLines)
  73     MENU_LINK(TogEdit)
  74     MENU_LINK(TogHideRoot)
  75     MENU_LINK(TogRootLines)
  76     MENU_LINK(TogBorder)
  77     MENU_LINK(TogFullHighlight)
  78     MENU_LINK(SetFgColour)
  79     MENU_LINK(SetBgColour)
  80     MENU_LINK(ResetStyle)
  81
  82     MENU_LINK(Dump)
  83 #ifndef NO_MULTIPLE_SELECTION
  84     MENU_LINK(DumpSelected)
  85     MENU_LINK(Select)
  86     MENU_LINK(Unselect)
  87     MENU_LINK(ToggleSel)
  88 #endif // NO_MULTIPLE_SELECTION
  89     MENU_LINK(Rename)
  90     MENU_LINK(Count)
  91     MENU_LINK(CountRec)
  92     MENU_LINK(Sort)
  93     MENU_LINK(SortRev)
  94     MENU_LINK(SetBold)
  95     MENU_LINK(ClearBold)
  96     MENU_LINK(Delete)
  97     MENU_LINK(DeleteChildren)
  98     MENU_LINK(DeleteAll)
  99     MENU_LINK(Recreate)
 100     MENU_LINK(ToggleImages)
 101     MENU_LINK(ToggleButtons)
 102     MENU_LINK(SetImageSize)
 103     MENU_LINK(CollapseAndReset)
 104     MENU_LINK(EnsureVisible)
 105     MENU_LINK(AddItem)
 106     MENU_LINK(InsertItem)
 107     MENU_LINK(IncIndent)
 108     MENU_LINK(DecIndent)
 109     MENU_LINK(IncSpacing)
 110     MENU_LINK(DecSpacing)
 111     MENU_LINK(ToggleIcon)
 112 #undef MENU_LINK
 113
 114 END_EVENT_TABLE()
 115
 116 #if USE_GENERIC_TREECTRL
 117 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 118 #else
 119 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 120 #endif
 121     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 122     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 123     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 124     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 125     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 126     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 127 #if 0       // there are so many of those that logging them causes flicker
 128     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 129 #endif
 130     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 131     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 132     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 133     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 134     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 135     //EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRightClick)
 136
 137     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 138     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 139     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 140     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 141     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 142     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 143 END_EVENT_TABLE()
 144
 145 IMPLEMENT_APP(MyApp)
 146
 147 bool MyApp::OnInit()
 148 {
 149     // Create the main frame window
 150     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 151
 152     // Show the frame
 153     frame->Show(TRUE);
 154     SetTopWindow(frame);
 155
 156     return TRUE;
 157 }
 158
 159
 160 // My frame constructor
 161 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 162        : wxFrame((wxFrame *)NULL, -1, title, wxPoint(x, y), wxSize(w, h)),
 163          m_treeCtrl(NULL), m_textCtrl(NULL)
 164 {
 165     // This reduces flicker effects - even better would be to define
 166     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 167     // show or hidden, the frame is sent a background erase event.
 168     SetBackgroundColour(wxColour(255, 255, 255));
 169
 170     // Give it an icon
 171     SetIcon(wxICON(mondrian));
 172
 173 #if wxUSE_MENUS
 174     // Make a menubar
 175     wxMenu *file_menu = new wxMenu,
 176            *style_menu = new wxMenu,
 177            *tree_menu = new wxMenu,
 178            *item_menu = new wxMenu;
 179
 180     file_menu->Append(TreeTest_About, wxT("&About..."));
 181     file_menu->AppendSeparator();
 182     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 183
 184     style_menu->Append(TreeTest_TogButtons, wxT("Toggle &normal buttons"), wxT(""), TRUE);
 185     style_menu->Append(TreeTest_TogTwist, wxT("Toggle &twister buttons"), wxT(""), TRUE);
 186     style_menu->Append(TreeTest_ToggleButtons, wxT("Toggle image &buttons"), wxT(""), TRUE);
 187     style_menu->AppendSeparator();
 188     style_menu->Append(TreeTest_TogLines, wxT("Toggle &connecting lines"), wxT(""), TRUE);
 189     style_menu->Append(TreeTest_TogRootLines, wxT("Toggle &lines at root"), wxT(""), TRUE);
 190     style_menu->Append(TreeTest_TogHideRoot, wxT("Toggle &hidden root"), wxT(""), TRUE);
 191     style_menu->Append(TreeTest_TogBorder, wxT("Toggle &item border"), wxT(""), TRUE);
 192     style_menu->Append(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"), wxT(""), TRUE);
 193     style_menu->Append(TreeTest_TogEdit, wxT("Toggle &edit mode"), wxT(""), TRUE);
 194 #ifndef NO_MULTIPLE_SELECTION
 195     style_menu->Append(TreeTest_ToggleSel, wxT("Toggle &selection mode"), wxT(""), TRUE);
 196 #endif // NO_MULTIPLE_SELECTION
 197     style_menu->Append(TreeTest_ToggleImages, wxT("Toggle show ima&ges"), wxT(""), TRUE);
 198     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 199     style_menu->AppendSeparator();
 200     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 201     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 202     style_menu->AppendSeparator();
 203     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 204
 205     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 206     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 207     tree_menu->AppendSeparator();
 208     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 209     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 210     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 211     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 212     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 213     tree_menu->AppendSeparator();
 214     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 215     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 216     tree_menu->AppendSeparator();
 217     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 218     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 219     tree_menu->AppendSeparator();
 220     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 221     tree_menu->AppendSeparator();
 222     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 223     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 224     tree_menu->AppendSeparator();
 225     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 226     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 227
 228     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 229     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 230
 231     item_menu->AppendSeparator();
 232     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 233     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 234     item_menu->AppendSeparator();
 235     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 236
 237 #ifndef NO_MULTIPLE_SELECTION
 238     item_menu->AppendSeparator();
 239     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 240     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 241     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 242 #endif // NO_MULTIPLE_SELECTION
 243
 244     wxMenuBar *menu_bar = new wxMenuBar;
 245     menu_bar->Append(file_menu, wxT("&File"));
 246     menu_bar->Append(style_menu, wxT("&Style"));
 247     menu_bar->Append(tree_menu, wxT("&Tree"));
 248     menu_bar->Append(item_menu, wxT("&Item"));
 249     SetMenuBar(menu_bar);
 250 #endif // wxUSE_MENUS
 251
 252     // create the controls
 253     m_textCtrl = new wxTextCtrl(this, -1, wxT(""),
 254                                 wxDefaultPosition, wxDefaultSize,
 255                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 256
 257     CreateTreeWithDefStyle();
 258
 259     menu_bar->Check(TreeTest_ToggleImages, TRUE);
 260
 261 #if wxUSE_STATUSBAR
 262     // create a status bar
 263     CreateStatusBar(2);
 264 #endif // wxUSE_STATUSBAR
 265
 266 #ifdef __WXMOTIF__
 267     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 268     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 269     delete wxLog::SetActiveTarget(new wxLogStderr);
 270 #else
 271     // set our text control as the log target
 272     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 273     delete wxLog::SetActiveTarget(logWindow);
 274 #endif
 275 }
 276
 277 MyFrame::~MyFrame()
 278 {
 279     delete wxLog::SetActiveTarget(NULL);
 280 }
 281
 282 void MyFrame::CreateTreeWithDefStyle()
 283 {
 284     long style = wxTR_DEFAULT_STYLE |
 285 #ifndef NO_VARIABLE_HEIGHT
 286                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 287 #endif
 288                  wxTR_EDIT_LABELS;
 289
 290     CreateTree(style | wxSUNKEN_BORDER);
 291
 292     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 293     // everything
 294     wxMenuBar *mbar = GetMenuBar();
 295     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 296     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 297     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 298     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 299     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 300     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 301     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 302     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 303 }
 304
 305 void MyFrame::CreateTree(long style)
 306 {
 307     m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
 308                                 wxDefaultPosition, wxDefaultSize,
 309                                 style);
 310     Resize();
 311 }
 312
 313 void MyFrame::TogStyle(int id, long flag)
 314 {
 315     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 316
 317     // most treectrl styles can't be changed on the fly using the native
 318     // control and the tree must be recreated
 319 #ifndef __WXMSW__
 320     m_treeCtrl->SetWindowStyle(style);
 321 #else // MSW
 322     delete m_treeCtrl;
 323     CreateTree(style);
 324 #endif // !MSW/MSW
 325
 326     GetMenuBar()->Check(id, (style & flag) != 0);
 327 }
 328
 329 void MyFrame::OnIdle(wxIdleEvent& event)
 330 {
 331 #if wxUSE_STATUSBAR
 332     wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 333
 334     SetStatusText(wxString::Format
 335                   (
 336                     _T("Root/last item is %svisible/%svisible"),
 337                     m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 338                     m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
 339                         ? _T("") : _T("not ")
 340                   ), 1);
 341 #endif // wxUSE_STATUSBAR
 342
 343     event.Skip();
 344 }
 345
 346 void MyFrame::OnSize(wxSizeEvent& event)
 347 {
 348     if ( m_treeCtrl && m_textCtrl )
 349     {
 350         Resize();
 351     }
 352
 353     event.Skip();
 354 }
 355
 356 void MyFrame::Resize()
 357 {
 358     wxSize size = GetClientSize();
 359     m_treeCtrl->SetSize(0, 0, size.x, 2*size.y/3);
 360     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 361 }
 362
 363 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 364 {
 365     Close(TRUE);
 366 }
 367
 368 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 369 {
 370     wxMessageBox(wxT("Tree test sample\n")
 371                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 372                  wxT("About tree test"),
 373                  wxOK | wxICON_INFORMATION, this);
 374 }
 375
 376 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 377 {
 378     wxTreeItemId item = m_treeCtrl->GetSelection();
 379
 380     CHECK_ITEM( item );
 381
 382     // old code - now we edit in place
 383 #if 0
 384     static wxString s_text;
 385     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 386             s_text, this);
 387     if ( !s_text.IsEmpty() )
 388     {
 389         m_treeCtrl->SetItemText(item, s_text);
 390     }
 391 #endif // 0
 392
 393     // TODO demonstrate creating a custom edit control...
 394     (void)m_treeCtrl->EditLabel(item);
 395 }
 396
 397 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 398 {
 399     wxTreeItemId item = m_treeCtrl->GetSelection();
 400
 401     CHECK_ITEM( item );
 402
 403     int i = m_treeCtrl->GetChildrenCount( item, FALSE );
 404
 405     wxLogMessage(wxT("%d children"), i);
 406 }
 407
 408 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 409 {
 410     wxTreeItemId item = m_treeCtrl->GetSelection();
 411
 412     CHECK_ITEM( item );
 413
 414     int i = m_treeCtrl->GetChildrenCount( item );
 415
 416     wxLogMessage(wxT("%d children"), i);
 417 }
 418
 419 void MyFrame::DoSort(bool reverse)
 420 {
 421     wxTreeItemId item = m_treeCtrl->GetSelection();
 422
 423     CHECK_ITEM( item );
 424
 425     m_treeCtrl->DoSortChildren(item, reverse);
 426 }
 427
 428 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 429 {
 430     wxTreeItemId root = m_treeCtrl->GetSelection();
 431
 432     CHECK_ITEM( root );
 433
 434     m_treeCtrl->GetItemsRecursively(root);
 435 }
 436
 437 #ifndef NO_MULTIPLE_SELECTION
 438
 439 void MyFrame::OnToggleSel(wxCommandEvent& event)
 440 {
 441     TogStyle(event.GetId(), wxTR_MULTIPLE);
 442 }
 443
 444 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 445 {
 446     wxArrayTreeItemIds array;
 447
 448     size_t count = m_treeCtrl->GetSelections(array);
 449     wxLogMessage(wxT("%u items selected"), count);
 450
 451     for ( size_t n = 0; n < count; n++ )
 452     {
 453         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 454     }
 455 }
 456
 457 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 458 {
 459     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 460 }
 461
 462 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 463 {
 464     m_treeCtrl->UnselectAll();
 465 }
 466
 467 #endif // NO_MULTIPLE_SELECTION
 468
 469 void MyFrame::DoSetBold(bool bold)
 470 {
 471     wxTreeItemId item = m_treeCtrl->GetSelection();
 472
 473     CHECK_ITEM( item );
 474
 475     m_treeCtrl->SetItemBold(item, bold);
 476 }
 477
 478 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 479 {
 480     wxTreeItemId item = m_treeCtrl->GetSelection();
 481
 482     CHECK_ITEM( item );
 483
 484     m_treeCtrl->Delete(item);
 485 }
 486
 487 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 488 {
 489     wxTreeItemId item = m_treeCtrl->GetSelection();
 490
 491     CHECK_ITEM( item );
 492
 493     m_treeCtrl->DeleteChildren(item);
 494 }
 495
 496 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 497 {
 498     m_treeCtrl->DeleteAllItems();
 499 }
 500
 501 void MyFrame::OnRecreate(wxCommandEvent& event)
 502 {
 503     OnDeleteAll(event);
 504     m_treeCtrl->AddTestItemsToTree(5, 2);
 505 }
 506
 507 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 508 {
 509     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 510                                     wxT("Size: "),
 511                                     wxT("TreeCtrl sample"),
 512                                     m_treeCtrl->ImageSize());
 513     if ( size == -1 )
 514         return;
 515
 516     m_treeCtrl->CreateImageList(size);
 517     wxGetApp().SetShowImages(TRUE);
 518 }
 519
 520 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 521 {
 522     if ( wxGetApp().ShowImages() )
 523     {
 524         m_treeCtrl->CreateImageList(-1);
 525         wxGetApp().SetShowImages(FALSE);
 526     }
 527     else
 528     {
 529         m_treeCtrl->CreateImageList(0);
 530         wxGetApp().SetShowImages(TRUE);
 531     }
 532 }
 533
 534 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 535 {
 536 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 537     if ( wxGetApp().ShowButtons() )
 538     {
 539         m_treeCtrl->CreateButtonsImageList(-1);
 540         wxGetApp().SetShowButtons(FALSE);
 541     }
 542     else
 543     {
 544         m_treeCtrl->CreateButtonsImageList(15);
 545         wxGetApp().SetShowButtons(TRUE);
 546     }
 547 #endif
 548 }
 549
 550 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 551 {
 552     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 553 }
 554
 555 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 556 {
 557     m_treeCtrl->DoEnsureVisible();
 558 }
 559
 560 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 561 {
 562     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 563     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 564 }
 565
 566 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 567 {
 568     static int s_num = 0;
 569
 570     wxString text;
 571     text.Printf(wxT("Item #%d"), ++s_num);
 572
 573     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 574                            text /*,
 575                            MyTreeCtrl::TreeCtrlIcon_File */ );
 576 }
 577
 578 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 579 {
 580     unsigned int indent = m_treeCtrl->GetIndent();
 581     if (indent < 100)
 582         m_treeCtrl->SetIndent( indent+5 );
 583 }
 584
 585 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 586 {
 587     unsigned int indent = m_treeCtrl->GetIndent();
 588     if (indent > 10)
 589         m_treeCtrl->SetIndent( indent-5 );
 590 }
 591
 592 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 593 {
 594     unsigned int indent = m_treeCtrl->GetSpacing();
 595     if (indent < 100)
 596         m_treeCtrl->SetSpacing( indent+5 );
 597 }
 598
 599 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 600 {
 601     unsigned int indent = m_treeCtrl->GetSpacing();
 602     if (indent > 10)
 603         m_treeCtrl->SetSpacing( indent-5 );
 604 }
 605
 606 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 607 {
 608     wxTreeItemId item = m_treeCtrl->GetSelection();
 609
 610     CHECK_ITEM( item );
 611
 612     m_treeCtrl->DoToggleIcon(item);
 613 }
 614
 615 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 616 {
 617     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 618     if ( col.Ok() )
 619         m_treeCtrl->SetForegroundColour(col);
 620 }
 621
 622 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 623 {
 624     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 625     if ( col.Ok() )
 626         m_treeCtrl->SetBackgroundColour(col);
 627 }
 628
 629 // MyTreeCtrl implementation
 630 #if USE_GENERIC_TREECTRL
 631 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 632 #else
 633 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 634 #endif
 635
 636 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 637                        const wxPoint& pos, const wxSize& size,
 638                        long style)
 639           : wxTreeCtrl(parent, id, pos, size, style)
 640 {
 641     m_reverseSort = FALSE;
 642
 643     CreateImageList();
 644
 645     // Add some items to the tree
 646     AddTestItemsToTree(5, 2);
 647 }
 648
 649 void MyTreeCtrl::CreateImageList(int size)
 650 {
 651     if ( size == -1 )
 652     {
 653         SetImageList(NULL);
 654         return;
 655     }
 656     if ( size == 0 )
 657         size = m_imageSize;
 658     else
 659         m_imageSize = size;
 660
 661     // Make an image list containing small icons
 662     wxImageList *images = new wxImageList(size, size, TRUE);
 663
 664     // should correspond to TreeCtrlIcon_xxx enum
 665     wxBusyCursor wait;
 666     wxIcon icons[5];
 667     icons[0] = wxIcon(icon1_xpm);
 668     icons[1] = wxIcon(icon2_xpm);
 669     icons[2] = wxIcon(icon3_xpm);
 670     icons[3] = wxIcon(icon4_xpm);
 671     icons[4] = wxIcon(icon5_xpm);
 672
 673     int sizeOrig = icons[0].GetWidth();
 674     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 675     {
 676         if ( size == sizeOrig )
 677         {
 678             images->Add(icons[i]);
 679         }
 680         else
 681         {
 682             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 683         }
 684     }
 685
 686     AssignImageList(images);
 687 }
 688
 689 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 690 void MyTreeCtrl::CreateButtonsImageList(int size)
 691 {
 692     if ( size == -1 )
 693     {
 694         SetButtonsImageList(NULL);
 695         return;
 696     }
 697
 698     // Make an image list containing small icons
 699     wxImageList *images = new wxImageList(size, size, TRUE);
 700
 701     // should correspond to TreeCtrlIcon_xxx enum
 702     wxBusyCursor wait;
 703     wxIcon icons[4];
 704     icons[0] = wxIcon(icon3_xpm);   // closed
 705     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 706     icons[2] = wxIcon(icon5_xpm);   // open
 707     icons[3] = wxIcon(icon5_xpm);   // open, selected
 708
 709     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 710     {
 711         int sizeOrig = icons[i].GetWidth();
 712         if ( size == sizeOrig )
 713         {
 714             images->Add(icons[i]);
 715         }
 716         else
 717         {
 718             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 719         }
 720     }
 721
 722     AssignButtonsImageList(images);
 723 #else
 724 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 725 {
 726 #endif
 727 }
 728
 729 MyTreeCtrl::~MyTreeCtrl()
 730 {
 731 }
 732
 733 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 734                                const wxTreeItemId& item2)
 735 {
 736     if ( m_reverseSort )
 737     {
 738         // just exchange 1st and 2nd items
 739         return wxTreeCtrl::OnCompareItems(item2, item1);
 740     }
 741     else
 742     {
 743         return wxTreeCtrl::OnCompareItems(item1, item2);
 744     }
 745 }
 746
 747 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 748                                      size_t numChildren,
 749                                      size_t depth,
 750                                      size_t folder)
 751 {
 752     if ( depth > 0 )
 753     {
 754         bool hasChildren = depth > 1;
 755
 756         wxString str;
 757         for ( size_t n = 0; n < numChildren; n++ )
 758         {
 759             // at depth 1 elements won't have any more children
 760             if ( hasChildren )
 761                 str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
 762             else
 763                 str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
 764
 765             // here we pass to AppendItem() normal and selected item images (we
 766             // suppose that selected image follows the normal one in the enum)
 767             int image, imageSel;
 768             if ( wxGetApp().ShowImages() )
 769             {
 770                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 771                 imageSel = image + 1;
 772             }
 773             else
 774             {
 775                 image = imageSel = -1;
 776             }
 777             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 778                                          new MyTreeItemData(str));
 779
 780             // and now we also set the expanded one (only for the folders)
 781             if ( hasChildren && wxGetApp().ShowImages() )
 782             {
 783                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 784                              wxTreeItemIcon_Expanded);
 785             }
 786
 787             // remember the last child for OnEnsureVisible()
 788             if ( !hasChildren && n == numChildren - 1 )
 789             {
 790                 m_lastItem = id;
 791             }
 792
 793             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 794         }
 795     }
 796     //else: done!
 797 }
 798
 799 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 800                                     size_t depth)
 801 {
 802     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 803     wxTreeItemId rootId = AddRoot(wxT("Root"),
 804                                   image, image,
 805                                   new MyTreeItemData(wxT("Root item")));
 806     if ( image != -1 )
 807     {
 808         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 809     }
 810
 811     AddItemsRecursively(rootId, numChildren, depth, 0);
 812
 813     // set some colours/fonts for testing
 814     SetItemFont(rootId, *wxITALIC_FONT);
 815
 816     wxTreeItemIdValue cookie;
 817     wxTreeItemId id = GetFirstChild(rootId, cookie);
 818     SetItemTextColour(id, *wxBLUE);
 819
 820     id = GetNextChild(rootId, cookie);
 821     id = GetNextChild(rootId, cookie);
 822     SetItemTextColour(id, *wxRED);
 823     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 824 }
 825
 826 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 827                                      wxTreeItemIdValue cookie)
 828 {
 829     wxTreeItemId id;
 830
 831     if ( !cookie )
 832         id = GetFirstChild(idParent, cookie);
 833     else
 834         id = GetNextChild(idParent, cookie);
 835
 836     if ( !id.IsOk() )
 837         return;
 838
 839     wxString text = GetItemText(id);
 840     wxLogMessage(text);
 841
 842     if (ItemHasChildren(id))
 843         GetItemsRecursively(id);
 844
 845     GetItemsRecursively(idParent, cookie);
 846 }
 847
 848 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 849 {
 850     int image = GetItemImage(item) == TreeCtrlIcon_Folder ? TreeCtrlIcon_File
 851                                                           : TreeCtrlIcon_Folder;
 852
 853     SetItemImage(item, image);
 854 }
 855
 856
 857 // avoid repetition
 858 #define TREE_EVENT_HANDLER(name)                                 \
 859 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 860 {                                                                \
 861     wxLogMessage(wxT(#name));                                    \
 862     SetLastItem(wxTreeItemId());                                 \
 863     event.Skip();                                                \
 864 }
 865
 866 TREE_EVENT_HANDLER(OnBeginRDrag)
 867 TREE_EVENT_HANDLER(OnDeleteItem)
 868 TREE_EVENT_HANDLER(OnGetInfo)
 869 TREE_EVENT_HANDLER(OnSetInfo)
 870 TREE_EVENT_HANDLER(OnItemExpanded)
 871 TREE_EVENT_HANDLER(OnItemExpanding)
 872 TREE_EVENT_HANDLER(OnItemCollapsed)
 873 TREE_EVENT_HANDLER(OnSelChanged)
 874 TREE_EVENT_HANDLER(OnSelChanging)
 875
 876 #undef TREE_EVENT_HANDLER
 877
 878 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 879 {
 880     wxString key;
 881     long keycode = event.GetKeyCode();
 882     {
 883         switch ( keycode )
 884         {
 885             case WXK_BACK: key = wxT("BACK"); break;
 886             case WXK_TAB: key = wxT("TAB"); break;
 887             case WXK_RETURN: key = wxT("RETURN"); break;
 888             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 889             case WXK_SPACE: key = wxT("SPACE"); break;
 890             case WXK_DELETE: key = wxT("DELETE"); break;
 891             case WXK_START: key = wxT("START"); break;
 892             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 893             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 894             case WXK_CANCEL: key = wxT("CANCEL"); break;
 895             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 896             case WXK_CLEAR: key = wxT("CLEAR"); break;
 897             case WXK_SHIFT: key = wxT("SHIFT"); break;
 898             case WXK_ALT: key = wxT("ALT"); break;
 899             case WXK_CONTROL: key = wxT("CONTROL"); break;
 900             case WXK_MENU: key = wxT("MENU"); break;
 901             case WXK_PAUSE: key = wxT("PAUSE"); break;
 902             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 903             case WXK_PRIOR: key = wxT("PRIOR"); break;
 904             case WXK_NEXT: key = wxT("NEXT"); break;
 905             case WXK_END: key = wxT("END"); break;
 906             case WXK_HOME: key = wxT("HOME"); break;
 907             case WXK_LEFT: key = wxT("LEFT"); break;
 908             case WXK_UP: key = wxT("UP"); break;
 909             case WXK_RIGHT: key = wxT("RIGHT"); break;
 910             case WXK_DOWN: key = wxT("DOWN"); break;
 911             case WXK_SELECT: key = wxT("SELECT"); break;
 912             case WXK_PRINT: key = wxT("PRINT"); break;
 913             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 914             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 915             case WXK_INSERT: key = wxT("INSERT"); break;
 916             case WXK_HELP: key = wxT("HELP"); break;
 917             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 918             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 919             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
 920             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
 921             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
 922             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
 923             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
 924             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
 925             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
 926             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
 927             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
 928             case WXK_ADD: key = wxT("ADD"); break;
 929             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
 930             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
 931             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
 932             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
 933             case WXK_F1: key = wxT("F1"); break;
 934             case WXK_F2: key = wxT("F2"); break;
 935             case WXK_F3: key = wxT("F3"); break;
 936             case WXK_F4: key = wxT("F4"); break;
 937             case WXK_F5: key = wxT("F5"); break;
 938             case WXK_F6: key = wxT("F6"); break;
 939             case WXK_F7: key = wxT("F7"); break;
 940             case WXK_F8: key = wxT("F8"); break;
 941             case WXK_F9: key = wxT("F9"); break;
 942             case WXK_F10: key = wxT("F10"); break;
 943             case WXK_F11: key = wxT("F11"); break;
 944             case WXK_F12: key = wxT("F12"); break;
 945             case WXK_F13: key = wxT("F13"); break;
 946             case WXK_F14: key = wxT("F14"); break;
 947             case WXK_F15: key = wxT("F15"); break;
 948             case WXK_F16: key = wxT("F16"); break;
 949             case WXK_F17: key = wxT("F17"); break;
 950             case WXK_F18: key = wxT("F18"); break;
 951             case WXK_F19: key = wxT("F19"); break;
 952             case WXK_F20: key = wxT("F20"); break;
 953             case WXK_F21: key = wxT("F21"); break;
 954             case WXK_F22: key = wxT("F22"); break;
 955             case WXK_F23: key = wxT("F23"); break;
 956             case WXK_F24: key = wxT("F24"); break;
 957             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
 958             case WXK_SCROLL: key = wxT("SCROLL"); break;
 959             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
 960             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
 961             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
 962             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
 963             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
 964             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
 965             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
 966             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
 967             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
 968             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
 969             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
 970             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
 971             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
 972             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
 973             case WXK_NUMPAD_PRIOR: key = wxT("NUMPAD_PRIOR"); break;
 974             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
 975             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
 976             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
 977             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
 978             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
 979             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
 980             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
 981             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
 982             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
 983             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
 984             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
 985             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
 986
 987             default:
 988             {
 989                if ( wxIsprint((int)keycode) )
 990                    key.Printf(wxT("'%c'"), (char)keycode);
 991                else if ( keycode > 0 && keycode < 27 )
 992                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
 993                else
 994                    key.Printf(wxT("unknown (%ld)"), keycode);
 995             }
 996         }
 997     }
 998
 999     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1000                   name,
1001                   key.c_str(),
1002                   event.ControlDown() ? wxT('C') : wxT('-'),
1003                   event.AltDown() ? wxT('A') : wxT('-'),
1004                   event.ShiftDown() ? wxT('S') : wxT('-'),
1005                   event.MetaDown() ? wxT('M') : wxT('-'));
1006 }
1007
1008 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1009 {
1010     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1011
1012     event.Skip();
1013 }
1014
1015 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1016 {
1017     // need to explicitly allow drag
1018     if ( event.GetItem() != GetRootItem() )
1019     {
1020         m_draggedItem = event.GetItem();
1021
1022         wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
1023                      GetItemText(m_draggedItem).c_str());
1024
1025         event.Allow();
1026     }
1027     else
1028     {
1029         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1030     }
1031 }
1032
1033 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1034 {
1035     wxTreeItemId itemSrc = m_draggedItem,
1036                  itemDst = event.GetItem();
1037     m_draggedItem = (wxTreeItemId)0l;
1038
1039     // where to copy the item?
1040     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1041     {
1042         // copy to the parent then
1043         itemDst = GetItemParent(itemDst);
1044     }
1045
1046     if ( !itemDst.IsOk() )
1047     {
1048         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1049
1050         return;
1051     }
1052
1053     wxString text = GetItemText(itemSrc);
1054     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1055                  text.c_str(), GetItemText(itemDst).c_str());
1056
1057     // just do append here - we could also insert it just before/after the item
1058     // on which it was dropped, but this requires slightly more work... we also
1059     // completely ignore the client data and icon of the old item but could
1060     // copy them as well.
1061     //
1062     // Finally, we only copy one item here but we might copy the entire tree if
1063     // we were dragging a folder.
1064     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1065     AppendItem(itemDst, text, image);
1066 }
1067
1068 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1069 {
1070     wxLogMessage(wxT("OnBeginLabelEdit"));
1071
1072     // for testing, prevent this item's label editing
1073     wxTreeItemId itemId = event.GetItem();
1074     if ( IsTestItem(itemId) )
1075     {
1076         wxMessageBox(wxT("You can't edit this item."));
1077
1078         event.Veto();
1079     }
1080 }
1081
1082 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1083 {
1084     wxLogMessage(wxT("OnEndLabelEdit"));
1085
1086     // don't allow anything except letters in the labels
1087     if ( !event.GetLabel().IsWord() )
1088     {
1089         wxMessageBox(wxT("The new label should be a single word."));
1090
1091         event.Veto();
1092     }
1093 }
1094
1095 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1096 {
1097     wxLogMessage(wxT("OnItemCollapsing"));
1098
1099     // for testing, prevent the user from collapsing the first child folder
1100     wxTreeItemId itemId = event.GetItem();
1101     if ( IsTestItem(itemId) )
1102     {
1103         wxMessageBox(wxT("You can't collapse this item."));
1104
1105         event.Veto();
1106     }
1107 }
1108
1109 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1110 {
1111     // show some info about this item
1112     wxTreeItemId itemId = event.GetItem();
1113     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1114
1115     if ( item != NULL )
1116     {
1117         item->ShowInfo(this);
1118     }
1119
1120     wxLogMessage(wxT("OnItemActivated"));
1121 }
1122
1123 void MyTreeCtrl::OnItemRightClick(wxTreeEvent& event)
1124 {
1125     ShowMenu(event.GetItem(), event.GetPoint());
1126 }
1127
1128 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1129 {
1130     wxPoint pt = event.GetPosition();
1131     wxTreeItemId item = GetSelection();
1132     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1133
1134     //check if event was generated by keyboard (MSW-specific?)
1135     if (pt.x==-1 && pt.y==-1) //(this is how MSW indicates it)
1136     {
1137         //attempt to guess where to show the menu
1138         if (item.IsOk())
1139         {
1140             //if an item was clicked, show menu to the right of it
1141             wxRect rect;
1142             GetBoundingRect(item, rect, true); //true = only the label
1143             pt = wxPoint(rect.GetRight(), rect.GetTop());
1144         }
1145         else
1146         {
1147             pt = wxPoint(0, 0);
1148         }
1149     }
1150     else
1151     {
1152         //event was generated by mouse, use supplied coords
1153         pt = ScreenToClient(pt);
1154     }
1155
1156     ShowMenu(item, pt);
1157 }
1158
1159 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1160 {
1161     wxString title;
1162     if ( id.IsOk() )
1163     {
1164         title << wxT("Menu for ") << GetItemText(id);
1165     }
1166     else
1167     {
1168         title = wxT("Menu for no particular item");
1169     }
1170
1171 #if wxUSE_MENUS
1172     wxMenu menu(title);
1173     menu.Append(TreeTest_About, wxT("&About..."));
1174     menu.Append(TreeTest_Dump, wxT("&Dump"));
1175
1176     PopupMenu(&menu, pt);
1177 #endif // wxUSE_MENUS
1178 }
1179
1180 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1181 {
1182     wxTreeItemId id = HitTest(event.GetPosition());
1183     if ( !id )
1184         wxLogMessage(wxT("No item under mouse"));
1185     else
1186     {
1187         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1188         if ( item )
1189             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1190     }
1191 }
1192
1193 static inline const wxChar *Bool2String(bool b)
1194 {
1195     return b ? wxT("") : wxT("not ");
1196 }
1197
1198 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1199 {
1200     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1201                  wxT("%u children (%u immediately under this item)."),
1202                  m_desc.c_str(),
1203                  Bool2String(tree->IsSelected(GetId())),
1204                  Bool2String(tree->IsExpanded(GetId())),
1205                  Bool2String(tree->IsBold(GetId())),
1206                  tree->GetChildrenCount(GetId()),
1207                  tree->GetChildrenCount(GetId(), FALSE));
1208 }