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
  50 #if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
  51 #include "mondrian.xpm"
  52 #endif
  53
  54
  55 // verify that the item is ok and insult the user if it is not
  56 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  57                              wxMessageBox(wxT("Please select some item first!"), \
  58                                           wxT("Tree sample error"),              \
  59                                           wxOK | wxICON_EXCLAMATION,             \
  60                                           this);                                 \
  61                              return;                                             \
  62                            }
  63
  64 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  65
  66 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  67     EVT_IDLE(MyFrame::OnIdle)
  68     EVT_SIZE(MyFrame::OnSize)
  69
  70     MENU_LINK(Quit)
  71     MENU_LINK(About)
  72
  73     MENU_LINK(TogButtons)
  74     MENU_LINK(TogTwist)
  75     MENU_LINK(TogLines)
  76     MENU_LINK(TogEdit)
  77     MENU_LINK(TogHideRoot)
  78     MENU_LINK(TogRootLines)
  79     MENU_LINK(TogBorder)
  80     MENU_LINK(TogFullHighlight)
  81     MENU_LINK(SetFgColour)
  82     MENU_LINK(SetBgColour)
  83     MENU_LINK(ResetStyle)
  84
  85     MENU_LINK(Dump)
  86 #ifndef NO_MULTIPLE_SELECTION
  87     MENU_LINK(DumpSelected)
  88     MENU_LINK(Select)
  89     MENU_LINK(Unselect)
  90     MENU_LINK(ToggleSel)
  91 #endif // NO_MULTIPLE_SELECTION
  92     MENU_LINK(Rename)
  93     MENU_LINK(Count)
  94     MENU_LINK(CountRec)
  95     MENU_LINK(Sort)
  96     MENU_LINK(SortRev)
  97     MENU_LINK(SetBold)
  98     MENU_LINK(ClearBold)
  99     MENU_LINK(Delete)
 100     MENU_LINK(DeleteChildren)
 101     MENU_LINK(DeleteAll)
 102     MENU_LINK(Recreate)
 103     MENU_LINK(ToggleImages)
 104     MENU_LINK(ToggleButtons)
 105     MENU_LINK(SetImageSize)
 106     MENU_LINK(CollapseAndReset)
 107     MENU_LINK(EnsureVisible)
 108     MENU_LINK(AddItem)
 109     MENU_LINK(InsertItem)
 110     MENU_LINK(IncIndent)
 111     MENU_LINK(DecIndent)
 112     MENU_LINK(IncSpacing)
 113     MENU_LINK(DecSpacing)
 114     MENU_LINK(ToggleIcon)
 115     MENU_LINK(SelectRoot)
 116 #undef MENU_LINK
 117
 118 END_EVENT_TABLE()
 119
 120 #if USE_GENERIC_TREECTRL
 121 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 122 #else
 123 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 124 #endif
 125     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 126     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 127     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 128     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 129     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 130     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 131 #if 0       // there are so many of those that logging them causes flicker
 132     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 133 #endif
 134     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 135     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 136     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 137     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 138     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 139     //EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRightClick)
 140
 141     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 142     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 143     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 144     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 145     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 146     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 147 END_EVENT_TABLE()
 148
 149 IMPLEMENT_APP(MyApp)
 150
 151 bool MyApp::OnInit()
 152 {
 153     // Create the main frame window
 154     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 155
 156     // Show the frame
 157     frame->Show(TRUE);
 158     SetTopWindow(frame);
 159
 160     return TRUE;
 161 }
 162
 163
 164 // My frame constructor
 165 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 166        : wxFrame((wxFrame *)NULL, -1, title, wxPoint(x, y), wxSize(w, h)),
 167          m_treeCtrl(NULL), m_textCtrl(NULL)
 168 {
 169     // This reduces flicker effects - even better would be to define
 170     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 171     // show or hidden, the frame is sent a background erase event.
 172     SetBackgroundColour(wxColour(255, 255, 255));
 173
 174     // Give it an icon
 175     SetIcon(wxICON(mondrian));
 176
 177 #if wxUSE_MENUS
 178     // Make a menubar
 179     wxMenu *file_menu = new wxMenu,
 180            *style_menu = new wxMenu,
 181            *tree_menu = new wxMenu,
 182            *item_menu = new wxMenu;
 183
 184     file_menu->Append(TreeTest_About, wxT("&About..."));
 185     file_menu->AppendSeparator();
 186     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 187
 188     style_menu->Append(TreeTest_TogButtons, wxT("Toggle &normal buttons"), wxT(""), TRUE);
 189     style_menu->Append(TreeTest_TogTwist, wxT("Toggle &twister buttons"), wxT(""), TRUE);
 190     style_menu->Append(TreeTest_ToggleButtons, wxT("Toggle image &buttons"), wxT(""), TRUE);
 191     style_menu->AppendSeparator();
 192     style_menu->Append(TreeTest_TogLines, wxT("Toggle &connecting lines"), wxT(""), TRUE);
 193     style_menu->Append(TreeTest_TogRootLines, wxT("Toggle &lines at root"), wxT(""), TRUE);
 194     style_menu->Append(TreeTest_TogHideRoot, wxT("Toggle &hidden root"), wxT(""), TRUE);
 195     style_menu->Append(TreeTest_TogBorder, wxT("Toggle &item border"), wxT(""), TRUE);
 196     style_menu->Append(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"), wxT(""), TRUE);
 197     style_menu->Append(TreeTest_TogEdit, wxT("Toggle &edit mode"), wxT(""), TRUE);
 198 #ifndef NO_MULTIPLE_SELECTION
 199     style_menu->Append(TreeTest_ToggleSel, wxT("Toggle &selection mode"), wxT(""), TRUE);
 200 #endif // NO_MULTIPLE_SELECTION
 201     style_menu->Append(TreeTest_ToggleImages, wxT("Toggle show ima&ges"), wxT(""), TRUE);
 202     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 203     style_menu->AppendSeparator();
 204     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 205     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 206     style_menu->AppendSeparator();
 207     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 208
 209     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 210     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 211     tree_menu->AppendSeparator();
 212     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 213     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 214     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 215     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 216     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 217     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 218     tree_menu->AppendSeparator();
 219     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 220     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 221     tree_menu->AppendSeparator();
 222     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 223     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 224     tree_menu->AppendSeparator();
 225     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 226     tree_menu->AppendSeparator();
 227     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 228     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 229     tree_menu->AppendSeparator();
 230     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 231     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 232
 233     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 234     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 235
 236     item_menu->AppendSeparator();
 237     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 238     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 239     item_menu->AppendSeparator();
 240     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 241
 242 #ifndef NO_MULTIPLE_SELECTION
 243     item_menu->AppendSeparator();
 244     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 245     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 246     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 247 #endif // NO_MULTIPLE_SELECTION
 248
 249     wxMenuBar *menu_bar = new wxMenuBar;
 250     menu_bar->Append(file_menu, wxT("&File"));
 251     menu_bar->Append(style_menu, wxT("&Style"));
 252     menu_bar->Append(tree_menu, wxT("&Tree"));
 253     menu_bar->Append(item_menu, wxT("&Item"));
 254     SetMenuBar(menu_bar);
 255 #endif // wxUSE_MENUS
 256
 257     // create the controls
 258     m_textCtrl = new wxTextCtrl(this, -1, wxT(""),
 259                                 wxDefaultPosition, wxDefaultSize,
 260                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 261
 262     CreateTreeWithDefStyle();
 263
 264     menu_bar->Check(TreeTest_ToggleImages, TRUE);
 265
 266 #if wxUSE_STATUSBAR
 267     // create a status bar
 268     CreateStatusBar(2);
 269 #endif // wxUSE_STATUSBAR
 270
 271 #ifdef __WXMOTIF__
 272     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 273     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 274     delete wxLog::SetActiveTarget(new wxLogStderr);
 275 #else
 276     // set our text control as the log target
 277     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 278     delete wxLog::SetActiveTarget(logWindow);
 279 #endif
 280 }
 281
 282 MyFrame::~MyFrame()
 283 {
 284     delete wxLog::SetActiveTarget(NULL);
 285 }
 286
 287 void MyFrame::CreateTreeWithDefStyle()
 288 {
 289     long style = wxTR_DEFAULT_STYLE |
 290 #ifndef NO_VARIABLE_HEIGHT
 291                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 292 #endif
 293                  wxTR_EDIT_LABELS;
 294
 295     CreateTree(style | wxSUNKEN_BORDER);
 296
 297     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 298     // everything
 299     wxMenuBar *mbar = GetMenuBar();
 300     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 301     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 302     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 303     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 304     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 305     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 306     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 307     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 308 }
 309
 310 void MyFrame::CreateTree(long style)
 311 {
 312     m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
 313                                 wxDefaultPosition, wxDefaultSize,
 314                                 style);
 315     Resize();
 316 }
 317
 318 void MyFrame::TogStyle(int id, long flag)
 319 {
 320     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 321
 322     // most treectrl styles can't be changed on the fly using the native
 323     // control and the tree must be recreated
 324 #ifndef __WXMSW__
 325     m_treeCtrl->SetWindowStyle(style);
 326 #else // MSW
 327     delete m_treeCtrl;
 328     CreateTree(style);
 329 #endif // !MSW/MSW
 330
 331     GetMenuBar()->Check(id, (style & flag) != 0);
 332 }
 333
 334 void MyFrame::OnIdle(wxIdleEvent& event)
 335 {
 336 #if wxUSE_STATUSBAR
 337     if ( m_treeCtrl )
 338     {
 339         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 340
 341         SetStatusText(wxString::Format
 342                       (
 343                         _T("Root/last item is %svisible/%svisible"),
 344                         m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 345                         m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
 346                             ? _T("") : _T("not ")
 347                       ), 1);
 348     }
 349 #endif // wxUSE_STATUSBAR
 350
 351     event.Skip();
 352 }
 353
 354 void MyFrame::OnSize(wxSizeEvent& event)
 355 {
 356     if ( m_treeCtrl && m_textCtrl )
 357     {
 358         Resize();
 359     }
 360
 361     event.Skip();
 362 }
 363
 364 void MyFrame::Resize()
 365 {
 366     wxSize size = GetClientSize();
 367     m_treeCtrl->SetSize(0, 0, size.x, 2*size.y/3);
 368     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 369 }
 370
 371 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 372 {
 373     Close(TRUE);
 374 }
 375
 376 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 377 {
 378     wxMessageBox(wxT("Tree test sample\n")
 379                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 380                  wxT("About tree test"),
 381                  wxOK | wxICON_INFORMATION, this);
 382 }
 383
 384 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 385 {
 386     wxTreeItemId item = m_treeCtrl->GetSelection();
 387
 388     CHECK_ITEM( item );
 389
 390     // old code - now we edit in place
 391 #if 0
 392     static wxString s_text;
 393     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 394             s_text, this);
 395     if ( !s_text.IsEmpty() )
 396     {
 397         m_treeCtrl->SetItemText(item, s_text);
 398     }
 399 #endif // 0
 400
 401     // TODO demonstrate creating a custom edit control...
 402     (void)m_treeCtrl->EditLabel(item);
 403 }
 404
 405 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 406 {
 407     wxTreeItemId item = m_treeCtrl->GetSelection();
 408
 409     CHECK_ITEM( item );
 410
 411     int i = m_treeCtrl->GetChildrenCount( item, FALSE );
 412
 413     wxLogMessage(wxT("%d children"), i);
 414 }
 415
 416 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 417 {
 418     wxTreeItemId item = m_treeCtrl->GetSelection();
 419
 420     CHECK_ITEM( item );
 421
 422     int i = m_treeCtrl->GetChildrenCount( item );
 423
 424     wxLogMessage(wxT("%d children"), i);
 425 }
 426
 427 void MyFrame::DoSort(bool reverse)
 428 {
 429     wxTreeItemId item = m_treeCtrl->GetSelection();
 430
 431     CHECK_ITEM( item );
 432
 433     m_treeCtrl->DoSortChildren(item, reverse);
 434 }
 435
 436 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 437 {
 438     wxTreeItemId root = m_treeCtrl->GetSelection();
 439
 440     CHECK_ITEM( root );
 441
 442     m_treeCtrl->GetItemsRecursively(root);
 443 }
 444
 445 #ifndef NO_MULTIPLE_SELECTION
 446
 447 void MyFrame::OnToggleSel(wxCommandEvent& event)
 448 {
 449     TogStyle(event.GetId(), wxTR_MULTIPLE);
 450 }
 451
 452 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 453 {
 454     wxArrayTreeItemIds array;
 455
 456     size_t count = m_treeCtrl->GetSelections(array);
 457     wxLogMessage(wxT("%u items selected"), count);
 458
 459     for ( size_t n = 0; n < count; n++ )
 460     {
 461         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 462     }
 463 }
 464
 465 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 466 {
 467     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 468 }
 469
 470 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 471 {
 472     m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 473 }
 474
 475 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 476 {
 477     m_treeCtrl->UnselectAll();
 478 }
 479
 480 #endif // NO_MULTIPLE_SELECTION
 481
 482 void MyFrame::DoSetBold(bool bold)
 483 {
 484     wxTreeItemId item = m_treeCtrl->GetSelection();
 485
 486     CHECK_ITEM( item );
 487
 488     m_treeCtrl->SetItemBold(item, bold);
 489 }
 490
 491 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 492 {
 493     wxTreeItemId item = m_treeCtrl->GetSelection();
 494
 495     CHECK_ITEM( item );
 496
 497     m_treeCtrl->Delete(item);
 498 }
 499
 500 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 501 {
 502     wxTreeItemId item = m_treeCtrl->GetSelection();
 503
 504     CHECK_ITEM( item );
 505
 506     m_treeCtrl->DeleteChildren(item);
 507 }
 508
 509 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 510 {
 511     m_treeCtrl->DeleteAllItems();
 512 }
 513
 514 void MyFrame::OnRecreate(wxCommandEvent& event)
 515 {
 516     OnDeleteAll(event);
 517     m_treeCtrl->AddTestItemsToTree(5, 2);
 518 }
 519
 520 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 521 {
 522     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 523                                     wxT("Size: "),
 524                                     wxT("TreeCtrl sample"),
 525                                     m_treeCtrl->ImageSize());
 526     if ( size == -1 )
 527         return;
 528
 529     m_treeCtrl->CreateImageList(size);
 530     wxGetApp().SetShowImages(TRUE);
 531 }
 532
 533 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 534 {
 535     if ( wxGetApp().ShowImages() )
 536     {
 537         m_treeCtrl->CreateImageList(-1);
 538         wxGetApp().SetShowImages(FALSE);
 539     }
 540     else
 541     {
 542         m_treeCtrl->CreateImageList(0);
 543         wxGetApp().SetShowImages(TRUE);
 544     }
 545 }
 546
 547 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 548 {
 549 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 550     if ( wxGetApp().ShowButtons() )
 551     {
 552         m_treeCtrl->CreateButtonsImageList(-1);
 553         wxGetApp().SetShowButtons(FALSE);
 554     }
 555     else
 556     {
 557         m_treeCtrl->CreateButtonsImageList(15);
 558         wxGetApp().SetShowButtons(TRUE);
 559     }
 560 #endif
 561 }
 562
 563 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 564 {
 565     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 566 }
 567
 568 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 569 {
 570     m_treeCtrl->DoEnsureVisible();
 571 }
 572
 573 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 574 {
 575     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 576     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 577 }
 578
 579 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 580 {
 581     static int s_num = 0;
 582
 583     wxString text;
 584     text.Printf(wxT("Item #%d"), ++s_num);
 585
 586     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 587                            text /*,
 588                            MyTreeCtrl::TreeCtrlIcon_File */ );
 589 }
 590
 591 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 592 {
 593     unsigned int indent = m_treeCtrl->GetIndent();
 594     if (indent < 100)
 595         m_treeCtrl->SetIndent( indent+5 );
 596 }
 597
 598 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 599 {
 600     unsigned int indent = m_treeCtrl->GetIndent();
 601     if (indent > 10)
 602         m_treeCtrl->SetIndent( indent-5 );
 603 }
 604
 605 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 606 {
 607     unsigned int indent = m_treeCtrl->GetSpacing();
 608     if (indent < 100)
 609         m_treeCtrl->SetSpacing( indent+5 );
 610 }
 611
 612 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 613 {
 614     unsigned int indent = m_treeCtrl->GetSpacing();
 615     if (indent > 10)
 616         m_treeCtrl->SetSpacing( indent-5 );
 617 }
 618
 619 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 620 {
 621     wxTreeItemId item = m_treeCtrl->GetSelection();
 622
 623     CHECK_ITEM( item );
 624
 625     m_treeCtrl->DoToggleIcon(item);
 626 }
 627
 628 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 629 {
 630     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 631     if ( col.Ok() )
 632         m_treeCtrl->SetForegroundColour(col);
 633 }
 634
 635 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 636 {
 637     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 638     if ( col.Ok() )
 639         m_treeCtrl->SetBackgroundColour(col);
 640 }
 641
 642 // MyTreeCtrl implementation
 643 #if USE_GENERIC_TREECTRL
 644 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 645 #else
 646 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 647 #endif
 648
 649 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 650                        const wxPoint& pos, const wxSize& size,
 651                        long style)
 652           : wxTreeCtrl(parent, id, pos, size, style)
 653 {
 654     m_reverseSort = FALSE;
 655
 656     CreateImageList();
 657
 658     // Add some items to the tree
 659     AddTestItemsToTree(5, 2);
 660 }
 661
 662 void MyTreeCtrl::CreateImageList(int size)
 663 {
 664     if ( size == -1 )
 665     {
 666         SetImageList(NULL);
 667         return;
 668     }
 669     if ( size == 0 )
 670         size = m_imageSize;
 671     else
 672         m_imageSize = size;
 673
 674     // Make an image list containing small icons
 675     wxImageList *images = new wxImageList(size, size, TRUE);
 676
 677     // should correspond to TreeCtrlIcon_xxx enum
 678     wxBusyCursor wait;
 679     wxIcon icons[5];
 680     icons[0] = wxIcon(icon1_xpm);
 681     icons[1] = wxIcon(icon2_xpm);
 682     icons[2] = wxIcon(icon3_xpm);
 683     icons[3] = wxIcon(icon4_xpm);
 684     icons[4] = wxIcon(icon5_xpm);
 685
 686     int sizeOrig = icons[0].GetWidth();
 687     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 688     {
 689         if ( size == sizeOrig )
 690         {
 691             images->Add(icons[i]);
 692         }
 693         else
 694         {
 695             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 696         }
 697     }
 698
 699     AssignImageList(images);
 700 }
 701
 702 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 703 void MyTreeCtrl::CreateButtonsImageList(int size)
 704 {
 705     if ( size == -1 )
 706     {
 707         SetButtonsImageList(NULL);
 708         return;
 709     }
 710
 711     // Make an image list containing small icons
 712     wxImageList *images = new wxImageList(size, size, TRUE);
 713
 714     // should correspond to TreeCtrlIcon_xxx enum
 715     wxBusyCursor wait;
 716     wxIcon icons[4];
 717     icons[0] = wxIcon(icon3_xpm);   // closed
 718     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 719     icons[2] = wxIcon(icon5_xpm);   // open
 720     icons[3] = wxIcon(icon5_xpm);   // open, selected
 721
 722     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 723     {
 724         int sizeOrig = icons[i].GetWidth();
 725         if ( size == sizeOrig )
 726         {
 727             images->Add(icons[i]);
 728         }
 729         else
 730         {
 731             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 732         }
 733     }
 734
 735     AssignButtonsImageList(images);
 736 #else
 737 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 738 {
 739 #endif
 740 }
 741
 742 MyTreeCtrl::~MyTreeCtrl()
 743 {
 744 }
 745
 746 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 747                                const wxTreeItemId& item2)
 748 {
 749     if ( m_reverseSort )
 750     {
 751         // just exchange 1st and 2nd items
 752         return wxTreeCtrl::OnCompareItems(item2, item1);
 753     }
 754     else
 755     {
 756         return wxTreeCtrl::OnCompareItems(item1, item2);
 757     }
 758 }
 759
 760 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 761                                      size_t numChildren,
 762                                      size_t depth,
 763                                      size_t folder)
 764 {
 765     if ( depth > 0 )
 766     {
 767         bool hasChildren = depth > 1;
 768
 769         wxString str;
 770         for ( size_t n = 0; n < numChildren; n++ )
 771         {
 772             // at depth 1 elements won't have any more children
 773             if ( hasChildren )
 774                 str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
 775             else
 776                 str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
 777
 778             // here we pass to AppendItem() normal and selected item images (we
 779             // suppose that selected image follows the normal one in the enum)
 780             int image, imageSel;
 781             if ( wxGetApp().ShowImages() )
 782             {
 783                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 784                 imageSel = image + 1;
 785             }
 786             else
 787             {
 788                 image = imageSel = -1;
 789             }
 790             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 791                                          new MyTreeItemData(str));
 792
 793             // and now we also set the expanded one (only for the folders)
 794             if ( hasChildren && wxGetApp().ShowImages() )
 795             {
 796                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 797                              wxTreeItemIcon_Expanded);
 798             }
 799
 800             // remember the last child for OnEnsureVisible()
 801             if ( !hasChildren && n == numChildren - 1 )
 802             {
 803                 m_lastItem = id;
 804             }
 805
 806             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 807         }
 808     }
 809     //else: done!
 810 }
 811
 812 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 813                                     size_t depth)
 814 {
 815     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 816     wxTreeItemId rootId = AddRoot(wxT("Root"),
 817                                   image, image,
 818                                   new MyTreeItemData(wxT("Root item")));
 819     if ( image != -1 )
 820     {
 821         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 822     }
 823
 824     AddItemsRecursively(rootId, numChildren, depth, 0);
 825
 826     // set some colours/fonts for testing
 827     SetItemFont(rootId, *wxITALIC_FONT);
 828
 829     wxTreeItemIdValue cookie;
 830     wxTreeItemId id = GetFirstChild(rootId, cookie);
 831     SetItemTextColour(id, *wxBLUE);
 832
 833     id = GetNextChild(rootId, cookie);
 834     id = GetNextChild(rootId, cookie);
 835     SetItemTextColour(id, *wxRED);
 836     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 837 }
 838
 839 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 840                                      wxTreeItemIdValue cookie)
 841 {
 842     wxTreeItemId id;
 843
 844     if ( !cookie )
 845         id = GetFirstChild(idParent, cookie);
 846     else
 847         id = GetNextChild(idParent, cookie);
 848
 849     if ( !id.IsOk() )
 850         return;
 851
 852     wxString text = GetItemText(id);
 853     wxLogMessage(text);
 854
 855     if (ItemHasChildren(id))
 856         GetItemsRecursively(id);
 857
 858     GetItemsRecursively(idParent, cookie);
 859 }
 860
 861 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 862 {
 863     int image = GetItemImage(item) == TreeCtrlIcon_Folder ? TreeCtrlIcon_File
 864                                                           : TreeCtrlIcon_Folder;
 865
 866     SetItemImage(item, image);
 867 }
 868
 869
 870 // avoid repetition
 871 #define TREE_EVENT_HANDLER(name)                                 \
 872 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 873 {                                                                \
 874     wxLogMessage(wxT(#name));                                    \
 875     SetLastItem(wxTreeItemId());                                 \
 876     event.Skip();                                                \
 877 }
 878
 879 TREE_EVENT_HANDLER(OnBeginRDrag)
 880 TREE_EVENT_HANDLER(OnDeleteItem)
 881 TREE_EVENT_HANDLER(OnGetInfo)
 882 TREE_EVENT_HANDLER(OnSetInfo)
 883 TREE_EVENT_HANDLER(OnItemExpanded)
 884 TREE_EVENT_HANDLER(OnItemExpanding)
 885 TREE_EVENT_HANDLER(OnItemCollapsed)
 886 TREE_EVENT_HANDLER(OnSelChanged)
 887 TREE_EVENT_HANDLER(OnSelChanging)
 888
 889 #undef TREE_EVENT_HANDLER
 890
 891 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 892 {
 893     wxString key;
 894     long keycode = event.GetKeyCode();
 895     {
 896         switch ( keycode )
 897         {
 898             case WXK_BACK: key = wxT("BACK"); break;
 899             case WXK_TAB: key = wxT("TAB"); break;
 900             case WXK_RETURN: key = wxT("RETURN"); break;
 901             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 902             case WXK_SPACE: key = wxT("SPACE"); break;
 903             case WXK_DELETE: key = wxT("DELETE"); break;
 904             case WXK_START: key = wxT("START"); break;
 905             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 906             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 907             case WXK_CANCEL: key = wxT("CANCEL"); break;
 908             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 909             case WXK_CLEAR: key = wxT("CLEAR"); break;
 910             case WXK_SHIFT: key = wxT("SHIFT"); break;
 911             case WXK_ALT: key = wxT("ALT"); break;
 912             case WXK_CONTROL: key = wxT("CONTROL"); break;
 913             case WXK_MENU: key = wxT("MENU"); break;
 914             case WXK_PAUSE: key = wxT("PAUSE"); break;
 915             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 916             case WXK_PRIOR: key = wxT("PRIOR"); break;
 917             case WXK_NEXT: key = wxT("NEXT"); break;
 918             case WXK_END: key = wxT("END"); break;
 919             case WXK_HOME: key = wxT("HOME"); break;
 920             case WXK_LEFT: key = wxT("LEFT"); break;
 921             case WXK_UP: key = wxT("UP"); break;
 922             case WXK_RIGHT: key = wxT("RIGHT"); break;
 923             case WXK_DOWN: key = wxT("DOWN"); break;
 924             case WXK_SELECT: key = wxT("SELECT"); break;
 925             case WXK_PRINT: key = wxT("PRINT"); break;
 926             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 927             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 928             case WXK_INSERT: key = wxT("INSERT"); break;
 929             case WXK_HELP: key = wxT("HELP"); break;
 930             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 931             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 932             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
 933             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
 934             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
 935             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
 936             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
 937             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
 938             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
 939             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
 940             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
 941             case WXK_ADD: key = wxT("ADD"); break;
 942             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
 943             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
 944             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
 945             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
 946             case WXK_F1: key = wxT("F1"); break;
 947             case WXK_F2: key = wxT("F2"); break;
 948             case WXK_F3: key = wxT("F3"); break;
 949             case WXK_F4: key = wxT("F4"); break;
 950             case WXK_F5: key = wxT("F5"); break;
 951             case WXK_F6: key = wxT("F6"); break;
 952             case WXK_F7: key = wxT("F7"); break;
 953             case WXK_F8: key = wxT("F8"); break;
 954             case WXK_F9: key = wxT("F9"); break;
 955             case WXK_F10: key = wxT("F10"); break;
 956             case WXK_F11: key = wxT("F11"); break;
 957             case WXK_F12: key = wxT("F12"); break;
 958             case WXK_F13: key = wxT("F13"); break;
 959             case WXK_F14: key = wxT("F14"); break;
 960             case WXK_F15: key = wxT("F15"); break;
 961             case WXK_F16: key = wxT("F16"); break;
 962             case WXK_F17: key = wxT("F17"); break;
 963             case WXK_F18: key = wxT("F18"); break;
 964             case WXK_F19: key = wxT("F19"); break;
 965             case WXK_F20: key = wxT("F20"); break;
 966             case WXK_F21: key = wxT("F21"); break;
 967             case WXK_F22: key = wxT("F22"); break;
 968             case WXK_F23: key = wxT("F23"); break;
 969             case WXK_F24: key = wxT("F24"); break;
 970             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
 971             case WXK_SCROLL: key = wxT("SCROLL"); break;
 972             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
 973             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
 974             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
 975             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
 976             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
 977             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
 978             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
 979             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
 980             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
 981             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
 982             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
 983             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
 984             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
 985             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
 986             case WXK_NUMPAD_PRIOR: key = wxT("NUMPAD_PRIOR"); break;
 987             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
 988             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
 989             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
 990             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
 991             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
 992             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
 993             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
 994             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
 995             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
 996             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
 997             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
 998             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
 999
1000             default:
1001             {
1002                if ( wxIsprint((int)keycode) )
1003                    key.Printf(wxT("'%c'"), (char)keycode);
1004                else if ( keycode > 0 && keycode < 27 )
1005                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1006                else
1007                    key.Printf(wxT("unknown (%ld)"), keycode);
1008             }
1009         }
1010     }
1011
1012     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1013                   name,
1014                   key.c_str(),
1015                   event.ControlDown() ? wxT('C') : wxT('-'),
1016                   event.AltDown() ? wxT('A') : wxT('-'),
1017                   event.ShiftDown() ? wxT('S') : wxT('-'),
1018                   event.MetaDown() ? wxT('M') : wxT('-'));
1019 }
1020
1021 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1022 {
1023     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1024
1025     event.Skip();
1026 }
1027
1028 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1029 {
1030     // need to explicitly allow drag
1031     if ( event.GetItem() != GetRootItem() )
1032     {
1033         m_draggedItem = event.GetItem();
1034
1035         wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
1036                      GetItemText(m_draggedItem).c_str());
1037
1038         event.Allow();
1039     }
1040     else
1041     {
1042         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1043     }
1044 }
1045
1046 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1047 {
1048     wxTreeItemId itemSrc = m_draggedItem,
1049                  itemDst = event.GetItem();
1050     m_draggedItem = (wxTreeItemId)0l;
1051
1052     // where to copy the item?
1053     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1054     {
1055         // copy to the parent then
1056         itemDst = GetItemParent(itemDst);
1057     }
1058
1059     if ( !itemDst.IsOk() )
1060     {
1061         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1062
1063         return;
1064     }
1065
1066     wxString text = GetItemText(itemSrc);
1067     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1068                  text.c_str(), GetItemText(itemDst).c_str());
1069
1070     // just do append here - we could also insert it just before/after the item
1071     // on which it was dropped, but this requires slightly more work... we also
1072     // completely ignore the client data and icon of the old item but could
1073     // copy them as well.
1074     //
1075     // Finally, we only copy one item here but we might copy the entire tree if
1076     // we were dragging a folder.
1077     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1078     AppendItem(itemDst, text, image);
1079 }
1080
1081 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1082 {
1083     wxLogMessage(wxT("OnBeginLabelEdit"));
1084
1085     // for testing, prevent this item's label editing
1086     wxTreeItemId itemId = event.GetItem();
1087     if ( IsTestItem(itemId) )
1088     {
1089         wxMessageBox(wxT("You can't edit this item."));
1090
1091         event.Veto();
1092     }
1093 }
1094
1095 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1096 {
1097     wxLogMessage(wxT("OnEndLabelEdit"));
1098
1099     // don't allow anything except letters in the labels
1100     if ( !event.GetLabel().IsWord() )
1101     {
1102         wxMessageBox(wxT("The new label should be a single word."));
1103
1104         event.Veto();
1105     }
1106 }
1107
1108 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1109 {
1110     wxLogMessage(wxT("OnItemCollapsing"));
1111
1112     // for testing, prevent the user from collapsing the first child folder
1113     wxTreeItemId itemId = event.GetItem();
1114     if ( IsTestItem(itemId) )
1115     {
1116         wxMessageBox(wxT("You can't collapse this item."));
1117
1118         event.Veto();
1119     }
1120 }
1121
1122 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1123 {
1124     // show some info about this item
1125     wxTreeItemId itemId = event.GetItem();
1126     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1127
1128     if ( item != NULL )
1129     {
1130         item->ShowInfo(this);
1131     }
1132
1133     wxLogMessage(wxT("OnItemActivated"));
1134 }
1135
1136 void MyTreeCtrl::OnItemRightClick(wxTreeEvent& event)
1137 {
1138     ShowMenu(event.GetItem(), event.GetPoint());
1139 }
1140
1141 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1142 {
1143     wxPoint pt = event.GetPosition();
1144     wxTreeItemId item = GetSelection();
1145     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1146
1147     //check if event was generated by keyboard (MSW-specific?)
1148     if (pt.x==-1 && pt.y==-1) //(this is how MSW indicates it)
1149     {
1150         //attempt to guess where to show the menu
1151         if (item.IsOk())
1152         {
1153             //if an item was clicked, show menu to the right of it
1154             wxRect rect;
1155             GetBoundingRect(item, rect, true); //true = only the label
1156             pt = wxPoint(rect.GetRight(), rect.GetTop());
1157         }
1158         else
1159         {
1160             pt = wxPoint(0, 0);
1161         }
1162     }
1163     else
1164     {
1165         //event was generated by mouse, use supplied coords
1166         pt = ScreenToClient(pt);
1167     }
1168
1169     ShowMenu(item, pt);
1170 }
1171
1172 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1173 {
1174     wxString title;
1175     if ( id.IsOk() )
1176     {
1177         title << wxT("Menu for ") << GetItemText(id);
1178     }
1179     else
1180     {
1181         title = wxT("Menu for no particular item");
1182     }
1183
1184 #if wxUSE_MENUS
1185     wxMenu menu(title);
1186     menu.Append(TreeTest_About, wxT("&About..."));
1187     menu.Append(TreeTest_Dump, wxT("&Dump"));
1188
1189     PopupMenu(&menu, pt);
1190 #endif // wxUSE_MENUS
1191 }
1192
1193 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1194 {
1195     wxTreeItemId id = HitTest(event.GetPosition());
1196     if ( !id )
1197         wxLogMessage(wxT("No item under mouse"));
1198     else
1199     {
1200         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1201         if ( item )
1202             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1203     }
1204 }
1205
1206 static inline const wxChar *Bool2String(bool b)
1207 {
1208     return b ? wxT("") : wxT("not ");
1209 }
1210
1211 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1212 {
1213     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1214                  wxT("%u children (%u immediately under this item)."),
1215                  m_desc.c_str(),
1216                  Bool2String(tree->IsSelected(GetId())),
1217                  Bool2String(tree->IsExpanded(GetId())),
1218                  Bool2String(tree->IsBold(GetId())),
1219                  tree->GetChildrenCount(GetId()),
1220                  tree->GetChildrenCount(GetId(), FALSE));
1221 }