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 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16   #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20   #include "wx/wx.h"
  21   #include "wx/log.h"
  22 #endif
  23
  24 #include "wx/colordlg.h"
  25 #include "wx/numdlg.h"
  26
  27 #include "wx/image.h"
  28 #include "wx/imaglist.h"
  29 #include "wx/treectrl.h"
  30 #include "wx/math.h"
  31
  32 #ifdef __WIN32__
  33     // this is not supported by native control
  34     #define NO_VARIABLE_HEIGHT
  35 #endif
  36
  37 #include "treetest.h"
  38
  39 #include "icon1.xpm"
  40 #include "icon2.xpm"
  41 #include "icon3.xpm"
  42 #include "icon4.xpm"
  43 #include "icon5.xpm"
  44
  45 #if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXPM__)
  46 #include "mondrian.xpm"
  47 #endif
  48
  49
  50 // verify that the item is ok and insult the user if it is not
  51 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  52                              wxMessageBox(wxT("Please select some item first!"), \
  53                                           wxT("Tree sample error"),              \
  54                                           wxOK | wxICON_EXCLAMATION,             \
  55                                           this);                                 \
  56                              return;                                             \
  57                            }
  58
  59 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  60
  61 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  62     EVT_IDLE(MyFrame::OnIdle)
  63     EVT_SIZE(MyFrame::OnSize)
  64
  65     MENU_LINK(Quit)
  66     MENU_LINK(About)
  67
  68     MENU_LINK(TogButtons)
  69     MENU_LINK(TogTwist)
  70     MENU_LINK(TogLines)
  71     MENU_LINK(TogEdit)
  72     MENU_LINK(TogHideRoot)
  73     MENU_LINK(TogRootLines)
  74     MENU_LINK(TogBorder)
  75     MENU_LINK(TogFullHighlight)
  76     MENU_LINK(SetFgColour)
  77     MENU_LINK(SetBgColour)
  78     MENU_LINK(ResetStyle)
  79
  80     MENU_LINK(Dump)
  81 #ifndef NO_MULTIPLE_SELECTION
  82     MENU_LINK(DumpSelected)
  83     MENU_LINK(Select)
  84     MENU_LINK(Unselect)
  85     MENU_LINK(ToggleSel)
  86 #endif // NO_MULTIPLE_SELECTION
  87     MENU_LINK(Rename)
  88     MENU_LINK(Count)
  89     MENU_LINK(CountRec)
  90     MENU_LINK(Sort)
  91     MENU_LINK(SortRev)
  92     MENU_LINK(SetBold)
  93     MENU_LINK(ClearBold)
  94     MENU_LINK(Delete)
  95     MENU_LINK(DeleteChildren)
  96     MENU_LINK(DeleteAll)
  97     MENU_LINK(Recreate)
  98     MENU_LINK(ToggleImages)
  99     MENU_LINK(ToggleButtons)
 100     MENU_LINK(SetImageSize)
 101     MENU_LINK(CollapseAndReset)
 102     MENU_LINK(EnsureVisible)
 103     MENU_LINK(AddItem)
 104     MENU_LINK(InsertItem)
 105     MENU_LINK(IncIndent)
 106     MENU_LINK(DecIndent)
 107     MENU_LINK(IncSpacing)
 108     MENU_LINK(DecSpacing)
 109     MENU_LINK(ToggleIcon)
 110     MENU_LINK(SelectRoot)
 111 #undef MENU_LINK
 112
 113 END_EVENT_TABLE()
 114
 115 #if USE_GENERIC_TREECTRL
 116 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 117 #else
 118 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 119 #endif
 120     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 121     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 122     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 123     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 124     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 125     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 126 #if 0       // there are so many of those that logging them causes flicker
 127     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 128 #endif
 129     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 130     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 131     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 132     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 133     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 134
 135     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 136     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 137     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 138     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 139
 140     // so many differents ways to handle right mouse button clicks...
 141     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 142     // EVT_TREE_ITEM_MENU is the preferred event for creating context menus
 143     // on a tree control, because it includes the point of the click or item,
 144     // meaning that no additional placement calculations are required.
 145     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 146     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 147
 148     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 149     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 150     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 151 END_EVENT_TABLE()
 152
 153 IMPLEMENT_APP(MyApp)
 154
 155 bool MyApp::OnInit()
 156 {
 157     // Create the main frame window
 158     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 159
 160     // Show the frame
 161     frame->Show(true);
 162     SetTopWindow(frame);
 163
 164     return true;
 165 }
 166
 167
 168 // My frame constructor
 169 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 170        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 171          m_treeCtrl(NULL)
 172 #if wxUSE_LOG
 173          , m_textCtrl(NULL)
 174 #endif // wxUSE_LOG
 175 {
 176     // This reduces flicker effects - even better would be to define
 177     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 178     // show or hidden, the frame is sent a background erase event.
 179     SetBackgroundColour(wxColour(255, 255, 255));
 180
 181     // Give it an icon
 182     SetIcon(wxICON(mondrian));
 183
 184 #if wxUSE_MENUS
 185     // Make a menubar
 186     wxMenu *file_menu = new wxMenu,
 187            *style_menu = new wxMenu,
 188            *tree_menu = new wxMenu,
 189            *item_menu = new wxMenu;
 190
 191     file_menu->Append(TreeTest_About, wxT("&About..."));
 192     file_menu->AppendSeparator();
 193     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 194
 195     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 196     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 197     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 198     style_menu->AppendSeparator();
 199     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 200     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 201     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 202     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 203     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 204     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 205 #ifndef NO_MULTIPLE_SELECTION
 206     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
 207 #endif // NO_MULTIPLE_SELECTION
 208     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 209     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 210     style_menu->AppendSeparator();
 211     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 212     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 213     style_menu->AppendSeparator();
 214     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 215
 216     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 217     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 218     tree_menu->AppendSeparator();
 219     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 220     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 221     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 222     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 223     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 224     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 225     tree_menu->AppendSeparator();
 226     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 227     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 228     tree_menu->AppendSeparator();
 229     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 230     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 231     tree_menu->AppendSeparator();
 232     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 233     tree_menu->AppendSeparator();
 234     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 235     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 236     tree_menu->AppendSeparator();
 237     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 238     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 239
 240     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 241     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 242
 243     item_menu->AppendSeparator();
 244     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 245     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 246     item_menu->AppendSeparator();
 247     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 248
 249 #ifndef NO_MULTIPLE_SELECTION
 250     item_menu->AppendSeparator();
 251     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 252     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 253     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 254 #endif // NO_MULTIPLE_SELECTION
 255
 256     wxMenuBar *menu_bar = new wxMenuBar;
 257     menu_bar->Append(file_menu, wxT("&File"));
 258     menu_bar->Append(style_menu, wxT("&Style"));
 259     menu_bar->Append(tree_menu, wxT("&Tree"));
 260     menu_bar->Append(item_menu, wxT("&Item"));
 261     SetMenuBar(menu_bar);
 262 #endif // wxUSE_MENUS
 263
 264 #if wxUSE_LOG
 265     // create the controls
 266     m_textCtrl = new wxTextCtrl(this, wxID_ANY, wxT(""),
 267                                 wxDefaultPosition, wxDefaultSize,
 268                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 269 #endif // wxUSE_LOG
 270
 271     CreateTreeWithDefStyle();
 272
 273     menu_bar->Check(TreeTest_ToggleImages, true);
 274
 275 #if wxUSE_STATUSBAR
 276     // create a status bar
 277     CreateStatusBar(2);
 278 #endif // wxUSE_STATUSBAR
 279
 280 #if wxUSE_LOG
 281 #ifdef __WXMOTIF__
 282     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 283     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 284     delete wxLog::SetActiveTarget(new wxLogStderr);
 285 #else
 286     // set our text control as the log target
 287     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 288     delete wxLog::SetActiveTarget(logWindow);
 289 #endif
 290 #endif // wxUSE_LOG
 291 }
 292
 293 MyFrame::~MyFrame()
 294 {
 295 #if wxUSE_LOG
 296     delete wxLog::SetActiveTarget(NULL);
 297 #endif // wxUSE_LOG
 298 }
 299
 300 void MyFrame::CreateTreeWithDefStyle()
 301 {
 302     long style = wxTR_DEFAULT_STYLE |
 303 #ifndef NO_VARIABLE_HEIGHT
 304                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 305 #endif
 306                  wxTR_EDIT_LABELS;
 307
 308     CreateTree(style | wxSUNKEN_BORDER);
 309
 310     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 311     // everything
 312     wxMenuBar *mbar = GetMenuBar();
 313     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 314     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 315     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 316     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 317     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 318     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 319     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 320     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 321 }
 322
 323 void MyFrame::CreateTree(long style)
 324 {
 325     m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
 326                                 wxDefaultPosition, wxDefaultSize,
 327                                 style);
 328     Resize();
 329 }
 330
 331 void MyFrame::TogStyle(int id, long flag)
 332 {
 333     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 334
 335     // most treectrl styles can't be changed on the fly using the native
 336     // control and the tree must be recreated
 337 #ifndef __WXMSW__
 338     m_treeCtrl->SetWindowStyle(style);
 339 #else // MSW
 340     delete m_treeCtrl;
 341     CreateTree(style);
 342 #endif // !MSW/MSW
 343
 344     GetMenuBar()->Check(id, (style & flag) != 0);
 345 }
 346
 347 void MyFrame::OnIdle(wxIdleEvent& event)
 348 {
 349 #if wxUSE_STATUSBAR
 350     if ( m_treeCtrl )
 351     {
 352         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 353
 354         SetStatusText(wxString::Format
 355                       (
 356                         _T("Root/last item is %svisible/%svisible"),
 357                         m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 358                         m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
 359                             ? _T("") : _T("not ")
 360                       ), 1);
 361     }
 362 #endif // wxUSE_STATUSBAR
 363
 364     event.Skip();
 365 }
 366
 367 void MyFrame::OnSize(wxSizeEvent& event)
 368 {
 369     if ( m_treeCtrl
 370 #if wxUSE_LOG
 371                     && m_textCtrl
 372 #endif // wxUSE_LOG
 373                                   )
 374     {
 375         Resize();
 376     }
 377
 378     event.Skip();
 379 }
 380
 381 void MyFrame::Resize()
 382 {
 383     wxSize size = GetClientSize();
 384     m_treeCtrl->SetSize(0, 0, size.x, size.y
 385 #if !wxUSE_LOG
 386                                             );
 387 #else
 388                                             *2/3);
 389     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 390 #endif
 391 }
 392
 393 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 394 {
 395     Close(true);
 396 }
 397
 398 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 399 {
 400     wxMessageBox(wxT("Tree test sample\n")
 401                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 402                  wxT("About tree test"),
 403                  wxOK | wxICON_INFORMATION, this);
 404 }
 405
 406 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 407 {
 408     wxTreeItemId item = m_treeCtrl->GetSelection();
 409
 410     CHECK_ITEM( item );
 411
 412     // old code - now we edit in place
 413 #if 0
 414     static wxString s_text;
 415     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 416             s_text, this);
 417     if ( !s_text.empty() )
 418     {
 419         m_treeCtrl->SetItemText(item, s_text);
 420     }
 421 #endif // 0
 422
 423     // TODO demonstrate creating a custom edit control...
 424     (void)m_treeCtrl->EditLabel(item);
 425 }
 426
 427 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 428 {
 429     wxTreeItemId item = m_treeCtrl->GetSelection();
 430
 431     CHECK_ITEM( item );
 432
 433     int i = m_treeCtrl->GetChildrenCount( item, false );
 434
 435     wxLogMessage(wxT("%d children"), i);
 436 }
 437
 438 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 439 {
 440     wxTreeItemId item = m_treeCtrl->GetSelection();
 441
 442     CHECK_ITEM( item );
 443
 444     int i = m_treeCtrl->GetChildrenCount( item );
 445
 446     wxLogMessage(wxT("%d children"), i);
 447 }
 448
 449 void MyFrame::DoSort(bool reverse)
 450 {
 451     wxTreeItemId item = m_treeCtrl->GetSelection();
 452
 453     CHECK_ITEM( item );
 454
 455     m_treeCtrl->DoSortChildren(item, reverse);
 456 }
 457
 458 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 459 {
 460     wxTreeItemId root = m_treeCtrl->GetSelection();
 461
 462     CHECK_ITEM( root );
 463
 464     m_treeCtrl->GetItemsRecursively(root);
 465 }
 466
 467 #ifndef NO_MULTIPLE_SELECTION
 468
 469 void MyFrame::OnToggleSel(wxCommandEvent& event)
 470 {
 471     TogStyle(event.GetId(), wxTR_MULTIPLE);
 472 }
 473
 474 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 475 {
 476     wxArrayTreeItemIds array;
 477
 478     size_t count = m_treeCtrl->GetSelections(array);
 479     wxLogMessage(wxT("%u items selected"), count);
 480
 481     for ( size_t n = 0; n < count; n++ )
 482     {
 483         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 484     }
 485 }
 486
 487 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 488 {
 489     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 490 }
 491
 492 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 493 {
 494     m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 495 }
 496
 497 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 498 {
 499     m_treeCtrl->UnselectAll();
 500 }
 501
 502 #endif // NO_MULTIPLE_SELECTION
 503
 504 void MyFrame::DoSetBold(bool bold)
 505 {
 506     wxTreeItemId item = m_treeCtrl->GetSelection();
 507
 508     CHECK_ITEM( item );
 509
 510     m_treeCtrl->SetItemBold(item, bold);
 511 }
 512
 513 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 514 {
 515     wxTreeItemId item = m_treeCtrl->GetSelection();
 516
 517     CHECK_ITEM( item );
 518
 519     m_treeCtrl->Delete(item);
 520 }
 521
 522 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 523 {
 524     wxTreeItemId item = m_treeCtrl->GetSelection();
 525
 526     CHECK_ITEM( item );
 527
 528     m_treeCtrl->DeleteChildren(item);
 529 }
 530
 531 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 532 {
 533     m_treeCtrl->DeleteAllItems();
 534 }
 535
 536 void MyFrame::OnRecreate(wxCommandEvent& event)
 537 {
 538     OnDeleteAll(event);
 539     m_treeCtrl->AddTestItemsToTree(5, 2);
 540 }
 541
 542 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 543 {
 544     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 545                                     wxT("Size: "),
 546                                     wxT("TreeCtrl sample"),
 547                                     m_treeCtrl->ImageSize());
 548     if ( size == -1 )
 549         return;
 550
 551     m_treeCtrl->CreateImageList(size);
 552     wxGetApp().SetShowImages(true);
 553 }
 554
 555 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 556 {
 557     if ( wxGetApp().ShowImages() )
 558     {
 559         m_treeCtrl->CreateImageList(-1);
 560         wxGetApp().SetShowImages(false);
 561     }
 562     else
 563     {
 564         m_treeCtrl->CreateImageList(0);
 565         wxGetApp().SetShowImages(true);
 566     }
 567 }
 568
 569 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 570 {
 571 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 572     if ( wxGetApp().ShowButtons() )
 573     {
 574         m_treeCtrl->CreateButtonsImageList(-1);
 575         wxGetApp().SetShowButtons(false);
 576     }
 577     else
 578     {
 579         m_treeCtrl->CreateButtonsImageList(15);
 580         wxGetApp().SetShowButtons(true);
 581     }
 582 #endif
 583 }
 584
 585 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 586 {
 587     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 588 }
 589
 590 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 591 {
 592     m_treeCtrl->DoEnsureVisible();
 593 }
 594
 595 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 596 {
 597     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 598     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 599 }
 600
 601 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 602 {
 603     static int s_num = 0;
 604
 605     wxString text;
 606     text.Printf(wxT("Item #%d"), ++s_num);
 607
 608     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 609                            text /*,
 610                            MyTreeCtrl::TreeCtrlIcon_File */ );
 611 }
 612
 613 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 614 {
 615     unsigned int indent = m_treeCtrl->GetIndent();
 616     if (indent < 100)
 617         m_treeCtrl->SetIndent( indent+5 );
 618 }
 619
 620 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 621 {
 622     unsigned int indent = m_treeCtrl->GetIndent();
 623     if (indent > 10)
 624         m_treeCtrl->SetIndent( indent-5 );
 625 }
 626
 627 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 628 {
 629     unsigned int indent = m_treeCtrl->GetSpacing();
 630     if (indent < 100)
 631         m_treeCtrl->SetSpacing( indent+5 );
 632 }
 633
 634 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 635 {
 636     unsigned int indent = m_treeCtrl->GetSpacing();
 637     if (indent > 10)
 638         m_treeCtrl->SetSpacing( indent-5 );
 639 }
 640
 641 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 642 {
 643     wxTreeItemId item = m_treeCtrl->GetSelection();
 644
 645     CHECK_ITEM( item );
 646
 647     m_treeCtrl->DoToggleIcon(item);
 648 }
 649
 650 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 651 {
 652     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 653     if ( col.Ok() )
 654         m_treeCtrl->SetForegroundColour(col);
 655 }
 656
 657 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 658 {
 659     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 660     if ( col.Ok() )
 661         m_treeCtrl->SetBackgroundColour(col);
 662 }
 663
 664 // MyTreeCtrl implementation
 665 #if USE_GENERIC_TREECTRL
 666 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 667 #else
 668 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 669 #endif
 670
 671 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 672                        const wxPoint& pos, const wxSize& size,
 673                        long style)
 674           : wxTreeCtrl(parent, id, pos, size, style)
 675 {
 676     m_reverseSort = false;
 677
 678     CreateImageList();
 679
 680     // Add some items to the tree
 681     AddTestItemsToTree(5, 2);
 682 }
 683
 684 void MyTreeCtrl::CreateImageList(int size)
 685 {
 686     if ( size == -1 )
 687     {
 688         SetImageList(NULL);
 689         return;
 690     }
 691     if ( size == 0 )
 692         size = m_imageSize;
 693     else
 694         m_imageSize = size;
 695
 696     // Make an image list containing small icons
 697     wxImageList *images = new wxImageList(size, size, true);
 698
 699     // should correspond to TreeCtrlIcon_xxx enum
 700     wxBusyCursor wait;
 701     wxIcon icons[5];
 702     icons[0] = wxIcon(icon1_xpm);
 703     icons[1] = wxIcon(icon2_xpm);
 704     icons[2] = wxIcon(icon3_xpm);
 705     icons[3] = wxIcon(icon4_xpm);
 706     icons[4] = wxIcon(icon5_xpm);
 707
 708     int sizeOrig = icons[0].GetWidth();
 709     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 710     {
 711         if ( size == sizeOrig )
 712         {
 713             images->Add(icons[i]);
 714         }
 715         else
 716         {
 717             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 718         }
 719     }
 720
 721     AssignImageList(images);
 722 }
 723
 724 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 725 void MyTreeCtrl::CreateButtonsImageList(int size)
 726 {
 727     if ( size == -1 )
 728     {
 729         SetButtonsImageList(NULL);
 730         return;
 731     }
 732
 733     // Make an image list containing small icons
 734     wxImageList *images = new wxImageList(size, size, true);
 735
 736     // should correspond to TreeCtrlIcon_xxx enum
 737     wxBusyCursor wait;
 738     wxIcon icons[4];
 739     icons[0] = wxIcon(icon3_xpm);   // closed
 740     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 741     icons[2] = wxIcon(icon5_xpm);   // open
 742     icons[3] = wxIcon(icon5_xpm);   // open, selected
 743
 744     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 745     {
 746         int sizeOrig = icons[i].GetWidth();
 747         if ( size == sizeOrig )
 748         {
 749             images->Add(icons[i]);
 750         }
 751         else
 752         {
 753             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 754         }
 755     }
 756
 757     AssignButtonsImageList(images);
 758 #else
 759 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 760 {
 761 #endif
 762 }
 763
 764 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 765                                const wxTreeItemId& item2)
 766 {
 767     if ( m_reverseSort )
 768     {
 769         // just exchange 1st and 2nd items
 770         return wxTreeCtrl::OnCompareItems(item2, item1);
 771     }
 772     else
 773     {
 774         return wxTreeCtrl::OnCompareItems(item1, item2);
 775     }
 776 }
 777
 778 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 779                                      size_t numChildren,
 780                                      size_t depth,
 781                                      size_t folder)
 782 {
 783     if ( depth > 0 )
 784     {
 785         bool hasChildren = depth > 1;
 786
 787         wxString str;
 788         for ( size_t n = 0; n < numChildren; n++ )
 789         {
 790             // at depth 1 elements won't have any more children
 791             if ( hasChildren )
 792                 str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
 793             else
 794                 str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
 795
 796             // here we pass to AppendItem() normal and selected item images (we
 797             // suppose that selected image follows the normal one in the enum)
 798             int image, imageSel;
 799             if ( wxGetApp().ShowImages() )
 800             {
 801                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 802                 imageSel = image + 1;
 803             }
 804             else
 805             {
 806                 image = imageSel = -1;
 807             }
 808             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 809                                          new MyTreeItemData(str));
 810
 811             // and now we also set the expanded one (only for the folders)
 812             if ( hasChildren && wxGetApp().ShowImages() )
 813             {
 814                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 815                              wxTreeItemIcon_Expanded);
 816             }
 817
 818             // remember the last child for OnEnsureVisible()
 819             if ( !hasChildren && n == numChildren - 1 )
 820             {
 821                 m_lastItem = id;
 822             }
 823
 824             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 825         }
 826     }
 827     //else: done!
 828 }
 829
 830 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 831                                     size_t depth)
 832 {
 833     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 834     wxTreeItemId rootId = AddRoot(wxT("Root"),
 835                                   image, image,
 836                                   new MyTreeItemData(wxT("Root item")));
 837     if ( image != -1 )
 838     {
 839         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 840     }
 841
 842     AddItemsRecursively(rootId, numChildren, depth, 0);
 843
 844     // set some colours/fonts for testing
 845     SetItemFont(rootId, *wxITALIC_FONT);
 846
 847     wxTreeItemIdValue cookie;
 848     wxTreeItemId id = GetFirstChild(rootId, cookie);
 849     SetItemTextColour(id, *wxBLUE);
 850
 851     id = GetNextChild(rootId, cookie);
 852     id = GetNextChild(rootId, cookie);
 853     SetItemTextColour(id, *wxRED);
 854     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 855 }
 856
 857 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 858                                      wxTreeItemIdValue cookie)
 859 {
 860     wxTreeItemId id;
 861
 862     if ( !cookie )
 863         id = GetFirstChild(idParent, cookie);
 864     else
 865         id = GetNextChild(idParent, cookie);
 866
 867     if ( !id.IsOk() )
 868         return;
 869
 870     wxString text = GetItemText(id);
 871     wxLogMessage(text);
 872
 873     if (ItemHasChildren(id))
 874         GetItemsRecursively(id);
 875
 876     GetItemsRecursively(idParent, cookie);
 877 }
 878
 879 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 880 {
 881     int image = (GetItemImage(item) == TreeCtrlIcon_Folder)
 882                     ? TreeCtrlIcon_File
 883                     : TreeCtrlIcon_Folder;
 884     SetItemImage(item, image, wxTreeItemIcon_Normal);
 885
 886     image = (GetItemImage(item) == TreeCtrlIcon_FolderSelected)
 887                     ? TreeCtrlIcon_FileSelected
 888                     : TreeCtrlIcon_FolderSelected;
 889     SetItemImage(item, image, wxTreeItemIcon_Selected);
 890 }
 891
 892
 893 // avoid repetition
 894 #define TREE_EVENT_HANDLER(name)                                 \
 895 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 896 {                                                                \
 897     wxLogMessage(wxT(#name));                                    \
 898     SetLastItem(wxTreeItemId());                                 \
 899     event.Skip();                                                \
 900 }
 901
 902 TREE_EVENT_HANDLER(OnBeginRDrag)
 903 TREE_EVENT_HANDLER(OnDeleteItem)
 904 TREE_EVENT_HANDLER(OnGetInfo)
 905 TREE_EVENT_HANDLER(OnSetInfo)
 906 TREE_EVENT_HANDLER(OnItemExpanded)
 907 TREE_EVENT_HANDLER(OnItemExpanding)
 908 TREE_EVENT_HANDLER(OnItemCollapsed)
 909 TREE_EVENT_HANDLER(OnSelChanged)
 910 TREE_EVENT_HANDLER(OnSelChanging)
 911
 912 #undef TREE_EVENT_HANDLER
 913
 914 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 915 {
 916     wxString key;
 917     long keycode = event.GetKeyCode();
 918     {
 919         switch ( keycode )
 920         {
 921             case WXK_BACK: key = wxT("BACK"); break;
 922             case WXK_TAB: key = wxT("TAB"); break;
 923             case WXK_RETURN: key = wxT("RETURN"); break;
 924             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 925             case WXK_SPACE: key = wxT("SPACE"); break;
 926             case WXK_DELETE: key = wxT("DELETE"); break;
 927             case WXK_START: key = wxT("START"); break;
 928             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 929             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 930             case WXK_CANCEL: key = wxT("CANCEL"); break;
 931             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 932             case WXK_CLEAR: key = wxT("CLEAR"); break;
 933             case WXK_SHIFT: key = wxT("SHIFT"); break;
 934             case WXK_ALT: key = wxT("ALT"); break;
 935             case WXK_CONTROL: key = wxT("CONTROL"); break;
 936             case WXK_MENU: key = wxT("MENU"); break;
 937             case WXK_PAUSE: key = wxT("PAUSE"); break;
 938             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 939             case WXK_END: key = wxT("END"); break;
 940             case WXK_HOME: key = wxT("HOME"); break;
 941             case WXK_LEFT: key = wxT("LEFT"); break;
 942             case WXK_UP: key = wxT("UP"); break;
 943             case WXK_RIGHT: key = wxT("RIGHT"); break;
 944             case WXK_DOWN: key = wxT("DOWN"); break;
 945             case WXK_SELECT: key = wxT("SELECT"); break;
 946             case WXK_PRINT: key = wxT("PRINT"); break;
 947             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 948             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 949             case WXK_INSERT: key = wxT("INSERT"); break;
 950             case WXK_HELP: key = wxT("HELP"); break;
 951             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 952             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 953             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
 954             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
 955             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
 956             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
 957             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
 958             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
 959             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
 960             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
 961             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
 962             case WXK_ADD: key = wxT("ADD"); break;
 963             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
 964             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
 965             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
 966             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
 967             case WXK_F1: key = wxT("F1"); break;
 968             case WXK_F2: key = wxT("F2"); break;
 969             case WXK_F3: key = wxT("F3"); break;
 970             case WXK_F4: key = wxT("F4"); break;
 971             case WXK_F5: key = wxT("F5"); break;
 972             case WXK_F6: key = wxT("F6"); break;
 973             case WXK_F7: key = wxT("F7"); break;
 974             case WXK_F8: key = wxT("F8"); break;
 975             case WXK_F9: key = wxT("F9"); break;
 976             case WXK_F10: key = wxT("F10"); break;
 977             case WXK_F11: key = wxT("F11"); break;
 978             case WXK_F12: key = wxT("F12"); break;
 979             case WXK_F13: key = wxT("F13"); break;
 980             case WXK_F14: key = wxT("F14"); break;
 981             case WXK_F15: key = wxT("F15"); break;
 982             case WXK_F16: key = wxT("F16"); break;
 983             case WXK_F17: key = wxT("F17"); break;
 984             case WXK_F18: key = wxT("F18"); break;
 985             case WXK_F19: key = wxT("F19"); break;
 986             case WXK_F20: key = wxT("F20"); break;
 987             case WXK_F21: key = wxT("F21"); break;
 988             case WXK_F22: key = wxT("F22"); break;
 989             case WXK_F23: key = wxT("F23"); break;
 990             case WXK_F24: key = wxT("F24"); break;
 991             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
 992             case WXK_SCROLL: key = wxT("SCROLL"); break;
 993             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
 994             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
 995             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
 996             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
 997             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
 998             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
 999             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1000             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1001             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1002             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1003             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1004             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1005             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1006             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1007             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1008             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1009             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1010             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1011             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1012             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1013             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1014             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1015             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1016             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1017             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1018             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1019
1020             default:
1021             {
1022                if ( keycode < 128 && wxIsprint((int)keycode) )
1023                    key.Printf(wxT("'%c'"), (char)keycode);
1024                else if ( keycode > 0 && keycode < 27 )
1025                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1026                else
1027                    key.Printf(wxT("unknown (%ld)"), keycode);
1028             }
1029         }
1030     }
1031
1032     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1033                   name,
1034                   key.c_str(),
1035                   event.ControlDown() ? wxT('C') : wxT('-'),
1036                   event.AltDown() ? wxT('A') : wxT('-'),
1037                   event.ShiftDown() ? wxT('S') : wxT('-'),
1038                   event.MetaDown() ? wxT('M') : wxT('-'));
1039 }
1040
1041 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1042 {
1043     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1044
1045     event.Skip();
1046 }
1047
1048 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1049 {
1050     // need to explicitly allow drag
1051     if ( event.GetItem() != GetRootItem() )
1052     {
1053         m_draggedItem = event.GetItem();
1054
1055         wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
1056                      GetItemText(m_draggedItem).c_str());
1057
1058         event.Allow();
1059     }
1060     else
1061     {
1062         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1063     }
1064 }
1065
1066 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1067 {
1068     wxTreeItemId itemSrc = m_draggedItem,
1069                  itemDst = event.GetItem();
1070     m_draggedItem = (wxTreeItemId)0l;
1071
1072     // where to copy the item?
1073     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1074     {
1075         // copy to the parent then
1076         itemDst = GetItemParent(itemDst);
1077     }
1078
1079     if ( !itemDst.IsOk() )
1080     {
1081         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1082
1083         return;
1084     }
1085
1086     wxString text = GetItemText(itemSrc);
1087     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1088                  text.c_str(), GetItemText(itemDst).c_str());
1089
1090     // just do append here - we could also insert it just before/after the item
1091     // on which it was dropped, but this requires slightly more work... we also
1092     // completely ignore the client data and icon of the old item but could
1093     // copy them as well.
1094     //
1095     // Finally, we only copy one item here but we might copy the entire tree if
1096     // we were dragging a folder.
1097     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1098     AppendItem(itemDst, text, image);
1099 }
1100
1101 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1102 {
1103     wxLogMessage(wxT("OnBeginLabelEdit"));
1104
1105     // for testing, prevent this item's label editing
1106     wxTreeItemId itemId = event.GetItem();
1107     if ( IsTestItem(itemId) )
1108     {
1109         wxMessageBox(wxT("You can't edit this item."));
1110
1111         event.Veto();
1112     }
1113     else if ( itemId == GetRootItem() )
1114     {
1115         // test that it is possible to change the text of the item being edited
1116         SetItemText(itemId, _T("Editing root item"));
1117     }
1118 }
1119
1120 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1121 {
1122     wxLogMessage(wxT("OnEndLabelEdit"));
1123
1124     // don't allow anything except letters in the labels
1125     if ( !event.GetLabel().IsWord() )
1126     {
1127         wxMessageBox(wxT("The new label should be a single word."));
1128
1129         event.Veto();
1130     }
1131 }
1132
1133 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1134 {
1135     wxLogMessage(wxT("OnItemCollapsing"));
1136
1137     // for testing, prevent the user from collapsing the first child folder
1138     wxTreeItemId itemId = event.GetItem();
1139     if ( IsTestItem(itemId) )
1140     {
1141         wxMessageBox(wxT("You can't collapse this item."));
1142
1143         event.Veto();
1144     }
1145 }
1146
1147 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1148 {
1149     // show some info about this item
1150     wxTreeItemId itemId = event.GetItem();
1151     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1152
1153     if ( item != NULL )
1154     {
1155         item->ShowInfo(this);
1156     }
1157
1158     wxLogMessage(wxT("OnItemActivated"));
1159 }
1160
1161 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1162 {
1163     wxTreeItemId itemId = event.GetItem();
1164     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1165                                          : NULL;
1166
1167     wxLogMessage(wxT("OnItemMenu for item \"%s\""), item ? item->GetDesc()
1168                                                          : _T(""));
1169
1170     event.Skip();
1171 }
1172
1173 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1174 {
1175     wxPoint pt = event.GetPosition();
1176     wxTreeItemId item;
1177     if ( !HasFlag(wxTR_MULTIPLE) )
1178         item = GetSelection();
1179     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1180
1181     // check if event was generated by keyboard (MSW-specific?)
1182     if ( pt.x == -1 && pt.y == -1 ) //(this is how MSW indicates it)
1183     {
1184         // attempt to guess where to show the menu
1185         if ( item.IsOk() )
1186         {
1187             // if an item was clicked, show menu to the right of it
1188             wxRect rect;
1189             GetBoundingRect(item, rect, true /* only the label */);
1190             pt = wxPoint(rect.GetRight(), rect.GetTop());
1191         }
1192         else
1193         {
1194             pt = wxPoint(0, 0);
1195         }
1196     }
1197     else // event was generated by mouse, use supplied coords
1198     {
1199         pt = ScreenToClient(pt);
1200     }
1201
1202     ShowMenu(item, pt);
1203 }
1204
1205 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1206 {
1207     wxString title;
1208     if ( id.IsOk() )
1209     {
1210         title << wxT("Menu for ") << GetItemText(id);
1211     }
1212     else
1213     {
1214         title = wxT("Menu for no particular item");
1215     }
1216
1217 #if wxUSE_MENUS
1218     wxMenu menu(title);
1219     menu.Append(TreeTest_About, wxT("&About..."));
1220     menu.Append(TreeTest_Dump, wxT("&Dump"));
1221
1222     PopupMenu(&menu, pt);
1223 #endif // wxUSE_MENUS
1224 }
1225
1226 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1227 {
1228     wxTreeItemId itemId = event.GetItem();
1229     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1230                                          : NULL;
1231
1232     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1233                                                         : _T(""));
1234
1235     event.Skip();
1236 }
1237
1238 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1239 {
1240     wxLogMessage(wxT("Right mouse button down"));
1241
1242     event.Skip();
1243 }
1244
1245 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1246 {
1247     wxLogMessage(wxT("Right mouse button up"));
1248
1249     event.Skip();
1250 }
1251
1252 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1253 {
1254     wxTreeItemId id = HitTest(event.GetPosition());
1255     if ( !id )
1256         wxLogMessage(wxT("No item under mouse"));
1257     else
1258     {
1259         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1260         if ( item )
1261             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1262     }
1263
1264     event.Skip();
1265 }
1266
1267 static inline const wxChar *Bool2String(bool b)
1268 {
1269     return b ? wxT("") : wxT("not ");
1270 }
1271
1272 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1273 {
1274     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1275                  wxT("%u children (%u immediately under this item)."),
1276                  m_desc.c_str(),
1277                  Bool2String(tree->IsSelected(GetId())),
1278                  Bool2String(tree->IsExpanded(GetId())),
1279                  Bool2String(tree->IsBold(GetId())),
1280                  tree->GetChildrenCount(GetId()),
1281                  tree->GetChildrenCount(GetId(), false));
1282 }