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 #ifndef __WXMSW__
  46     #include "../sample.xpm"
  47 #endif
  48
  49 // verify that the item is ok and insult the user if it is not
  50 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  51                              wxMessageBox(wxT("Please select some item first!"), \
  52                                           wxT("Tree sample error"),              \
  53                                           wxOK | wxICON_EXCLAMATION,             \
  54                                           this);                                 \
  55                              return;                                             \
  56                            }
  57
  58 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  59
  60 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  61     EVT_IDLE(MyFrame::OnIdle)
  62     EVT_SIZE(MyFrame::OnSize)
  63
  64     MENU_LINK(Quit)
  65     MENU_LINK(About)
  66
  67     MENU_LINK(TogButtons)
  68     MENU_LINK(TogTwist)
  69     MENU_LINK(TogLines)
  70     MENU_LINK(TogEdit)
  71     MENU_LINK(TogHideRoot)
  72     MENU_LINK(TogRootLines)
  73     MENU_LINK(TogBorder)
  74     MENU_LINK(TogFullHighlight)
  75     MENU_LINK(SetFgColour)
  76     MENU_LINK(SetBgColour)
  77     MENU_LINK(ResetStyle)
  78
  79     MENU_LINK(Dump)
  80 #ifndef NO_MULTIPLE_SELECTION
  81     MENU_LINK(DumpSelected)
  82     MENU_LINK(Select)
  83     MENU_LINK(Unselect)
  84     MENU_LINK(ToggleSel)
  85 #endif // NO_MULTIPLE_SELECTION
  86     MENU_LINK(Rename)
  87     MENU_LINK(Count)
  88     MENU_LINK(CountRec)
  89     MENU_LINK(Sort)
  90     MENU_LINK(SortRev)
  91     MENU_LINK(SetBold)
  92     MENU_LINK(ClearBold)
  93     MENU_LINK(Delete)
  94     MENU_LINK(DeleteChildren)
  95     MENU_LINK(DeleteAll)
  96     MENU_LINK(Recreate)
  97     MENU_LINK(ToggleImages)
  98     MENU_LINK(ToggleButtons)
  99     MENU_LINK(SetImageSize)
 100     MENU_LINK(CollapseAndReset)
 101     MENU_LINK(EnsureVisible)
 102     MENU_LINK(AddItem)
 103     MENU_LINK(InsertItem)
 104     MENU_LINK(IncIndent)
 105     MENU_LINK(DecIndent)
 106     MENU_LINK(IncSpacing)
 107     MENU_LINK(DecSpacing)
 108     MENU_LINK(ToggleIcon)
 109     MENU_LINK(SelectRoot)
 110 #undef MENU_LINK
 111
 112 END_EVENT_TABLE()
 113
 114 #if USE_GENERIC_TREECTRL
 115 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 116 #else
 117 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 118 #endif
 119     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 120     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 121     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 122     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 123     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 124     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 125 #if 0       // there are so many of those that logging them causes flicker
 126     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 127 #endif
 128     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 129     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 130     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 131     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 132     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 133
 134     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 135     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 136     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 137     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 138
 139     // so many differents ways to handle right mouse button clicks...
 140     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 141     // EVT_TREE_ITEM_MENU is the preferred event for creating context menus
 142     // on a tree control, because it includes the point of the click or item,
 143     // meaning that no additional placement calculations are required.
 144     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 145     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 146
 147     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 148     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 149     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 150 END_EVENT_TABLE()
 151
 152 IMPLEMENT_APP(MyApp)
 153
 154 bool MyApp::OnInit()
 155 {
 156     // Create the main frame window
 157     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 158
 159     // Show the frame
 160     frame->Show(true);
 161     SetTopWindow(frame);
 162
 163     return true;
 164 }
 165
 166
 167 // My frame constructor
 168 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 169        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 170          m_treeCtrl(NULL)
 171 #if wxUSE_LOG
 172          , m_textCtrl(NULL)
 173 #endif // wxUSE_LOG
 174 {
 175     // This reduces flicker effects - even better would be to define
 176     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 177     // show or hidden, the frame is sent a background erase event.
 178     SetBackgroundColour(wxColour(255, 255, 255));
 179
 180     // Give it an icon
 181     SetIcon(wxICON(sample));
 182
 183 #if wxUSE_MENUS
 184     // Make a menubar
 185     wxMenu *file_menu = new wxMenu,
 186            *style_menu = new wxMenu,
 187            *tree_menu = new wxMenu,
 188            *item_menu = new wxMenu;
 189
 190     file_menu->Append(TreeTest_About, wxT("&About..."));
 191     file_menu->AppendSeparator();
 192     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 193
 194     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 195     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 196     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 197     style_menu->AppendSeparator();
 198     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 199     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 200     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 201     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 202     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 203     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 204 #ifndef NO_MULTIPLE_SELECTION
 205     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
 206 #endif // NO_MULTIPLE_SELECTION
 207     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 208     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 209     style_menu->AppendSeparator();
 210     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 211     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 212     style_menu->AppendSeparator();
 213     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 214
 215     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 216     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 217     tree_menu->AppendSeparator();
 218     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 219     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 220     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 221     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 222     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 223     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 224     tree_menu->AppendSeparator();
 225     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 226     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 227     tree_menu->AppendSeparator();
 228     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 229     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 230     tree_menu->AppendSeparator();
 231     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 232     tree_menu->AppendSeparator();
 233     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 234     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 235     tree_menu->AppendSeparator();
 236     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 237     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 238
 239     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 240     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 241
 242     item_menu->AppendSeparator();
 243     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 244     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 245     item_menu->AppendSeparator();
 246     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 247
 248 #ifndef NO_MULTIPLE_SELECTION
 249     item_menu->AppendSeparator();
 250     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 251     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 252     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 253 #endif // NO_MULTIPLE_SELECTION
 254
 255     wxMenuBar *menu_bar = new wxMenuBar;
 256     menu_bar->Append(file_menu, wxT("&File"));
 257     menu_bar->Append(style_menu, wxT("&Style"));
 258     menu_bar->Append(tree_menu, wxT("&Tree"));
 259     menu_bar->Append(item_menu, wxT("&Item"));
 260     SetMenuBar(menu_bar);
 261 #endif // wxUSE_MENUS
 262
 263     m_panel = new wxPanel(this);
 264
 265 #if wxUSE_LOG
 266     // create the controls
 267     m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""),
 268                                 wxDefaultPosition, wxDefaultSize,
 269                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 270 #endif // wxUSE_LOG
 271
 272     CreateTreeWithDefStyle();
 273
 274     menu_bar->Check(TreeTest_ToggleImages, true);
 275
 276 #if wxUSE_STATUSBAR
 277     // create a status bar
 278     CreateStatusBar(2);
 279 #endif // wxUSE_STATUSBAR
 280
 281 #if wxUSE_LOG
 282 #ifdef __WXMOTIF__
 283     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 284     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 285     delete wxLog::SetActiveTarget(new wxLogStderr);
 286 #else
 287     // set our text control as the log target
 288     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 289     delete wxLog::SetActiveTarget(logWindow);
 290 #endif
 291 #endif // wxUSE_LOG
 292 }
 293
 294 MyFrame::~MyFrame()
 295 {
 296 #if wxUSE_LOG
 297     delete wxLog::SetActiveTarget(NULL);
 298 #endif // wxUSE_LOG
 299 }
 300
 301 void MyFrame::CreateTreeWithDefStyle()
 302 {
 303     long style = wxTR_DEFAULT_STYLE |
 304 #ifndef NO_VARIABLE_HEIGHT
 305                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 306 #endif
 307                  wxTR_EDIT_LABELS;
 308
 309     CreateTree(style | wxSUNKEN_BORDER);
 310
 311     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 312     // everything
 313     wxMenuBar *mbar = GetMenuBar();
 314     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 315     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 316     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 317     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 318     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 319     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 320     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 321     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 322 }
 323
 324 void MyFrame::CreateTree(long style)
 325 {
 326     m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl,
 327                                 wxDefaultPosition, wxDefaultSize,
 328                                 style);
 329     Resize();
 330 }
 331
 332 void MyFrame::TogStyle(int id, long flag)
 333 {
 334     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 335
 336     // most treectrl styles can't be changed on the fly using the native
 337     // control and the tree must be recreated
 338 #ifndef __WXMSW__
 339     m_treeCtrl->SetWindowStyle(style);
 340 #else // MSW
 341     delete m_treeCtrl;
 342     CreateTree(style);
 343 #endif // !MSW/MSW
 344
 345     GetMenuBar()->Check(id, (style & flag) != 0);
 346 }
 347
 348 void MyFrame::OnIdle(wxIdleEvent& event)
 349 {
 350 #if wxUSE_STATUSBAR
 351     if ( m_treeCtrl )
 352     {
 353         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 354
 355         SetStatusText(wxString::Format
 356                       (
 357                         _T("Root/last item is %svisible/%svisible"),
 358                         m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 359                         m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
 360                             ? _T("") : _T("not ")
 361                       ), 1);
 362     }
 363 #endif // wxUSE_STATUSBAR
 364
 365     event.Skip();
 366 }
 367
 368 void MyFrame::OnSize(wxSizeEvent& event)
 369 {
 370     if ( m_treeCtrl
 371 #if wxUSE_LOG
 372                     && m_textCtrl
 373 #endif // wxUSE_LOG
 374                                   )
 375     {
 376         Resize();
 377     }
 378
 379     event.Skip();
 380 }
 381
 382 void MyFrame::Resize()
 383 {
 384     wxSize size = GetClientSize();
 385     m_treeCtrl->SetSize(0, 0, size.x, size.y
 386 #if !wxUSE_LOG
 387                                             );
 388 #else
 389                                             *2/3);
 390     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 391 #endif
 392 }
 393
 394 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 395 {
 396     Close(true);
 397 }
 398
 399 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 400 {
 401     wxMessageBox(wxT("Tree test sample\n")
 402                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 403                  wxT("About tree test"),
 404                  wxOK | wxICON_INFORMATION, this);
 405 }
 406
 407 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 408 {
 409     wxTreeItemId item = m_treeCtrl->GetSelection();
 410
 411     CHECK_ITEM( item );
 412
 413     // old code - now we edit in place
 414 #if 0
 415     static wxString s_text;
 416     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 417             s_text, this);
 418     if ( !s_text.empty() )
 419     {
 420         m_treeCtrl->SetItemText(item, s_text);
 421     }
 422 #endif // 0
 423
 424     // TODO demonstrate creating a custom edit control...
 425     (void)m_treeCtrl->EditLabel(item);
 426 }
 427
 428 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 429 {
 430     wxTreeItemId item = m_treeCtrl->GetSelection();
 431
 432     CHECK_ITEM( item );
 433
 434     int i = m_treeCtrl->GetChildrenCount( item, false );
 435
 436     wxLogMessage(wxT("%d children"), i);
 437 }
 438
 439 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 440 {
 441     wxTreeItemId item = m_treeCtrl->GetSelection();
 442
 443     CHECK_ITEM( item );
 444
 445     int i = m_treeCtrl->GetChildrenCount( item );
 446
 447     wxLogMessage(wxT("%d children"), i);
 448 }
 449
 450 void MyFrame::DoSort(bool reverse)
 451 {
 452     wxTreeItemId item = m_treeCtrl->GetSelection();
 453
 454     CHECK_ITEM( item );
 455
 456     m_treeCtrl->DoSortChildren(item, reverse);
 457 }
 458
 459 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 460 {
 461     wxTreeItemId root = m_treeCtrl->GetSelection();
 462
 463     CHECK_ITEM( root );
 464
 465     m_treeCtrl->GetItemsRecursively(root);
 466 }
 467
 468 #ifndef NO_MULTIPLE_SELECTION
 469
 470 void MyFrame::OnToggleSel(wxCommandEvent& event)
 471 {
 472     TogStyle(event.GetId(), wxTR_MULTIPLE);
 473 }
 474
 475 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 476 {
 477     wxArrayTreeItemIds array;
 478
 479     size_t count = m_treeCtrl->GetSelections(array);
 480     wxLogMessage(wxT("%u items selected"), count);
 481
 482     for ( size_t n = 0; n < count; n++ )
 483     {
 484         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 485     }
 486 }
 487
 488 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 489 {
 490     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 491 }
 492
 493 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 494 {
 495     m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 496 }
 497
 498 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 499 {
 500     m_treeCtrl->UnselectAll();
 501 }
 502
 503 #endif // NO_MULTIPLE_SELECTION
 504
 505 void MyFrame::DoSetBold(bool bold)
 506 {
 507     wxTreeItemId item = m_treeCtrl->GetSelection();
 508
 509     CHECK_ITEM( item );
 510
 511     m_treeCtrl->SetItemBold(item, bold);
 512 }
 513
 514 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 515 {
 516     wxTreeItemId item = m_treeCtrl->GetSelection();
 517
 518     CHECK_ITEM( item );
 519
 520     m_treeCtrl->Delete(item);
 521 }
 522
 523 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 524 {
 525     wxTreeItemId item = m_treeCtrl->GetSelection();
 526
 527     CHECK_ITEM( item );
 528
 529     m_treeCtrl->DeleteChildren(item);
 530 }
 531
 532 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 533 {
 534     m_treeCtrl->DeleteAllItems();
 535 }
 536
 537 void MyFrame::OnRecreate(wxCommandEvent& event)
 538 {
 539     OnDeleteAll(event);
 540     m_treeCtrl->AddTestItemsToTree(5, 2);
 541 }
 542
 543 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 544 {
 545     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 546                                     wxT("Size: "),
 547                                     wxT("TreeCtrl sample"),
 548                                     m_treeCtrl->ImageSize());
 549     if ( size == -1 )
 550         return;
 551
 552     m_treeCtrl->CreateImageList(size);
 553     wxGetApp().SetShowImages(true);
 554 }
 555
 556 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 557 {
 558     if ( wxGetApp().ShowImages() )
 559     {
 560         m_treeCtrl->CreateImageList(-1);
 561         wxGetApp().SetShowImages(false);
 562     }
 563     else
 564     {
 565         m_treeCtrl->CreateImageList(0);
 566         wxGetApp().SetShowImages(true);
 567     }
 568 }
 569
 570 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 571 {
 572 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 573     if ( wxGetApp().ShowButtons() )
 574     {
 575         m_treeCtrl->CreateButtonsImageList(-1);
 576         wxGetApp().SetShowButtons(false);
 577     }
 578     else
 579     {
 580         m_treeCtrl->CreateButtonsImageList(15);
 581         wxGetApp().SetShowButtons(true);
 582     }
 583 #endif
 584 }
 585
 586 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 587 {
 588     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 589 }
 590
 591 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 592 {
 593     m_treeCtrl->DoEnsureVisible();
 594 }
 595
 596 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 597 {
 598     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 599     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 600 }
 601
 602 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 603 {
 604     static int s_num = 0;
 605
 606     wxString text;
 607     text.Printf(wxT("Item #%d"), ++s_num);
 608
 609     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 610                            text /*,
 611                            MyTreeCtrl::TreeCtrlIcon_File */ );
 612 }
 613
 614 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 615 {
 616     unsigned int indent = m_treeCtrl->GetIndent();
 617     if (indent < 100)
 618         m_treeCtrl->SetIndent( indent+5 );
 619 }
 620
 621 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 622 {
 623     unsigned int indent = m_treeCtrl->GetIndent();
 624     if (indent > 10)
 625         m_treeCtrl->SetIndent( indent-5 );
 626 }
 627
 628 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 629 {
 630     unsigned int indent = m_treeCtrl->GetSpacing();
 631     if (indent < 100)
 632         m_treeCtrl->SetSpacing( indent+5 );
 633 }
 634
 635 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 636 {
 637     unsigned int indent = m_treeCtrl->GetSpacing();
 638     if (indent > 10)
 639         m_treeCtrl->SetSpacing( indent-5 );
 640 }
 641
 642 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 643 {
 644     wxTreeItemId item = m_treeCtrl->GetSelection();
 645
 646     CHECK_ITEM( item );
 647
 648     m_treeCtrl->DoToggleIcon(item);
 649 }
 650
 651 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 652 {
 653     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 654     if ( col.Ok() )
 655         m_treeCtrl->SetForegroundColour(col);
 656 }
 657
 658 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 659 {
 660     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 661     if ( col.Ok() )
 662         m_treeCtrl->SetBackgroundColour(col);
 663 }
 664
 665 // MyTreeCtrl implementation
 666 #if USE_GENERIC_TREECTRL
 667 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 668 #else
 669 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 670 #endif
 671
 672 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 673                        const wxPoint& pos, const wxSize& size,
 674                        long style)
 675           : wxTreeCtrl(parent, id, pos, size, style)
 676 {
 677     m_reverseSort = false;
 678
 679     CreateImageList();
 680
 681     // Add some items to the tree
 682     AddTestItemsToTree(5, 2);
 683 }
 684
 685 void MyTreeCtrl::CreateImageList(int size)
 686 {
 687     if ( size == -1 )
 688     {
 689         SetImageList(NULL);
 690         return;
 691     }
 692     if ( size == 0 )
 693         size = m_imageSize;
 694     else
 695         m_imageSize = size;
 696
 697     // Make an image list containing small icons
 698     wxImageList *images = new wxImageList(size, size, true);
 699
 700     // should correspond to TreeCtrlIcon_xxx enum
 701     wxBusyCursor wait;
 702     wxIcon icons[5];
 703     icons[0] = wxIcon(icon1_xpm);
 704     icons[1] = wxIcon(icon2_xpm);
 705     icons[2] = wxIcon(icon3_xpm);
 706     icons[3] = wxIcon(icon4_xpm);
 707     icons[4] = wxIcon(icon5_xpm);
 708
 709     int sizeOrig = icons[0].GetWidth();
 710     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 711     {
 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     AssignImageList(images);
 723 }
 724
 725 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 726 void MyTreeCtrl::CreateButtonsImageList(int size)
 727 {
 728     if ( size == -1 )
 729     {
 730         SetButtonsImageList(NULL);
 731         return;
 732     }
 733
 734     // Make an image list containing small icons
 735     wxImageList *images = new wxImageList(size, size, true);
 736
 737     // should correspond to TreeCtrlIcon_xxx enum
 738     wxBusyCursor wait;
 739     wxIcon icons[4];
 740     icons[0] = wxIcon(icon3_xpm);   // closed
 741     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 742     icons[2] = wxIcon(icon5_xpm);   // open
 743     icons[3] = wxIcon(icon5_xpm);   // open, selected
 744
 745     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 746     {
 747         int sizeOrig = icons[i].GetWidth();
 748         if ( size == sizeOrig )
 749         {
 750             images->Add(icons[i]);
 751         }
 752         else
 753         {
 754             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 755         }
 756     }
 757
 758     AssignButtonsImageList(images);
 759 #else
 760 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 761 {
 762 #endif
 763 }
 764
 765 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 766                                const wxTreeItemId& item2)
 767 {
 768     if ( m_reverseSort )
 769     {
 770         // just exchange 1st and 2nd items
 771         return wxTreeCtrl::OnCompareItems(item2, item1);
 772     }
 773     else
 774     {
 775         return wxTreeCtrl::OnCompareItems(item1, item2);
 776     }
 777 }
 778
 779 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 780                                      size_t numChildren,
 781                                      size_t depth,
 782                                      size_t folder)
 783 {
 784     if ( depth > 0 )
 785     {
 786         bool hasChildren = depth > 1;
 787
 788         wxString str;
 789         for ( size_t n = 0; n < numChildren; n++ )
 790         {
 791             // at depth 1 elements won't have any more children
 792             if ( hasChildren )
 793                 str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
 794             else
 795                 str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
 796
 797             // here we pass to AppendItem() normal and selected item images (we
 798             // suppose that selected image follows the normal one in the enum)
 799             int image, imageSel;
 800             if ( wxGetApp().ShowImages() )
 801             {
 802                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 803                 imageSel = image + 1;
 804             }
 805             else
 806             {
 807                 image = imageSel = -1;
 808             }
 809             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 810                                          new MyTreeItemData(str));
 811
 812             // and now we also set the expanded one (only for the folders)
 813             if ( hasChildren && wxGetApp().ShowImages() )
 814             {
 815                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 816                              wxTreeItemIcon_Expanded);
 817             }
 818
 819             // remember the last child for OnEnsureVisible()
 820             if ( !hasChildren && n == numChildren - 1 )
 821             {
 822                 m_lastItem = id;
 823             }
 824
 825             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 826         }
 827     }
 828     //else: done!
 829 }
 830
 831 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 832                                     size_t depth)
 833 {
 834     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 835     wxTreeItemId rootId = AddRoot(wxT("Root"),
 836                                   image, image,
 837                                   new MyTreeItemData(wxT("Root item")));
 838     if ( image != -1 )
 839     {
 840         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 841     }
 842
 843     AddItemsRecursively(rootId, numChildren, depth, 0);
 844
 845     // set some colours/fonts for testing
 846     SetItemFont(rootId, *wxITALIC_FONT);
 847
 848     wxTreeItemIdValue cookie;
 849     wxTreeItemId id = GetFirstChild(rootId, cookie);
 850     SetItemTextColour(id, *wxBLUE);
 851
 852     id = GetNextChild(rootId, cookie);
 853     id = GetNextChild(rootId, cookie);
 854     SetItemTextColour(id, *wxRED);
 855     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 856 }
 857
 858 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 859                                      wxTreeItemIdValue cookie)
 860 {
 861     wxTreeItemId id;
 862
 863     if ( !cookie )
 864         id = GetFirstChild(idParent, cookie);
 865     else
 866         id = GetNextChild(idParent, cookie);
 867
 868     if ( !id.IsOk() )
 869         return;
 870
 871     wxString text = GetItemText(id);
 872     wxLogMessage(text);
 873
 874     if (ItemHasChildren(id))
 875         GetItemsRecursively(id);
 876
 877     GetItemsRecursively(idParent, cookie);
 878 }
 879
 880 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 881 {
 882     int image = (GetItemImage(item) == TreeCtrlIcon_Folder)
 883                     ? TreeCtrlIcon_File
 884                     : TreeCtrlIcon_Folder;
 885     SetItemImage(item, image, wxTreeItemIcon_Normal);
 886
 887     image = (GetItemImage(item) == TreeCtrlIcon_FolderSelected)
 888                     ? TreeCtrlIcon_FileSelected
 889                     : TreeCtrlIcon_FolderSelected;
 890     SetItemImage(item, image, wxTreeItemIcon_Selected);
 891 }
 892
 893
 894 // avoid repetition
 895 #define TREE_EVENT_HANDLER(name)                                 \
 896 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 897 {                                                                \
 898     wxLogMessage(wxT(#name));                                    \
 899     SetLastItem(wxTreeItemId());                                 \
 900     event.Skip();                                                \
 901 }
 902
 903 TREE_EVENT_HANDLER(OnBeginRDrag)
 904 TREE_EVENT_HANDLER(OnDeleteItem)
 905 TREE_EVENT_HANDLER(OnGetInfo)
 906 TREE_EVENT_HANDLER(OnSetInfo)
 907 TREE_EVENT_HANDLER(OnItemExpanded)
 908 TREE_EVENT_HANDLER(OnItemExpanding)
 909 TREE_EVENT_HANDLER(OnItemCollapsed)
 910 TREE_EVENT_HANDLER(OnSelChanged)
 911 TREE_EVENT_HANDLER(OnSelChanging)
 912
 913 #undef TREE_EVENT_HANDLER
 914
 915 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 916 {
 917     wxString key;
 918     long keycode = event.GetKeyCode();
 919     {
 920         switch ( keycode )
 921         {
 922             case WXK_BACK: key = wxT("BACK"); break;
 923             case WXK_TAB: key = wxT("TAB"); break;
 924             case WXK_RETURN: key = wxT("RETURN"); break;
 925             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 926             case WXK_SPACE: key = wxT("SPACE"); break;
 927             case WXK_DELETE: key = wxT("DELETE"); break;
 928             case WXK_START: key = wxT("START"); break;
 929             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 930             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 931             case WXK_CANCEL: key = wxT("CANCEL"); break;
 932             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 933             case WXK_CLEAR: key = wxT("CLEAR"); break;
 934             case WXK_SHIFT: key = wxT("SHIFT"); break;
 935             case WXK_ALT: key = wxT("ALT"); break;
 936             case WXK_CONTROL: key = wxT("CONTROL"); break;
 937             case WXK_MENU: key = wxT("MENU"); break;
 938             case WXK_PAUSE: key = wxT("PAUSE"); break;
 939             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 940             case WXK_END: key = wxT("END"); break;
 941             case WXK_HOME: key = wxT("HOME"); break;
 942             case WXK_LEFT: key = wxT("LEFT"); break;
 943             case WXK_UP: key = wxT("UP"); break;
 944             case WXK_RIGHT: key = wxT("RIGHT"); break;
 945             case WXK_DOWN: key = wxT("DOWN"); break;
 946             case WXK_SELECT: key = wxT("SELECT"); break;
 947             case WXK_PRINT: key = wxT("PRINT"); break;
 948             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 949             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 950             case WXK_INSERT: key = wxT("INSERT"); break;
 951             case WXK_HELP: key = wxT("HELP"); break;
 952             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 953             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 954             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
 955             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
 956             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
 957             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
 958             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
 959             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
 960             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
 961             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
 962             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
 963             case WXK_ADD: key = wxT("ADD"); break;
 964             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
 965             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
 966             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
 967             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
 968             case WXK_F1: key = wxT("F1"); break;
 969             case WXK_F2: key = wxT("F2"); break;
 970             case WXK_F3: key = wxT("F3"); break;
 971             case WXK_F4: key = wxT("F4"); break;
 972             case WXK_F5: key = wxT("F5"); break;
 973             case WXK_F6: key = wxT("F6"); break;
 974             case WXK_F7: key = wxT("F7"); break;
 975             case WXK_F8: key = wxT("F8"); break;
 976             case WXK_F9: key = wxT("F9"); break;
 977             case WXK_F10: key = wxT("F10"); break;
 978             case WXK_F11: key = wxT("F11"); break;
 979             case WXK_F12: key = wxT("F12"); break;
 980             case WXK_F13: key = wxT("F13"); break;
 981             case WXK_F14: key = wxT("F14"); break;
 982             case WXK_F15: key = wxT("F15"); break;
 983             case WXK_F16: key = wxT("F16"); break;
 984             case WXK_F17: key = wxT("F17"); break;
 985             case WXK_F18: key = wxT("F18"); break;
 986             case WXK_F19: key = wxT("F19"); break;
 987             case WXK_F20: key = wxT("F20"); break;
 988             case WXK_F21: key = wxT("F21"); break;
 989             case WXK_F22: key = wxT("F22"); break;
 990             case WXK_F23: key = wxT("F23"); break;
 991             case WXK_F24: key = wxT("F24"); break;
 992             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
 993             case WXK_SCROLL: key = wxT("SCROLL"); break;
 994             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
 995             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
 996             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
 997             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
 998             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
 999             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
1000             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1001             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1002             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1003             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1004             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1005             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1006             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1007             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1008             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1009             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1010             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1011             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1012             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1013             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1014             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1015             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1016             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1017             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1018             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1019             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1020
1021             default:
1022             {
1023                if ( keycode < 128 && wxIsprint((int)keycode) )
1024                    key.Printf(wxT("'%c'"), (char)keycode);
1025                else if ( keycode > 0 && keycode < 27 )
1026                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1027                else
1028                    key.Printf(wxT("unknown (%ld)"), keycode);
1029             }
1030         }
1031     }
1032
1033     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1034                   name,
1035                   key.c_str(),
1036                   event.ControlDown() ? wxT('C') : wxT('-'),
1037                   event.AltDown() ? wxT('A') : wxT('-'),
1038                   event.ShiftDown() ? wxT('S') : wxT('-'),
1039                   event.MetaDown() ? wxT('M') : wxT('-'));
1040 }
1041
1042 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1043 {
1044     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1045
1046     event.Skip();
1047 }
1048
1049 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1050 {
1051     // need to explicitly allow drag
1052     if ( event.GetItem() != GetRootItem() )
1053     {
1054         m_draggedItem = event.GetItem();
1055
1056         wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
1057                      GetItemText(m_draggedItem).c_str());
1058
1059         event.Allow();
1060     }
1061     else
1062     {
1063         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1064     }
1065 }
1066
1067 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1068 {
1069     wxTreeItemId itemSrc = m_draggedItem,
1070                  itemDst = event.GetItem();
1071     m_draggedItem = (wxTreeItemId)0l;
1072
1073     // where to copy the item?
1074     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1075     {
1076         // copy to the parent then
1077         itemDst = GetItemParent(itemDst);
1078     }
1079
1080     if ( !itemDst.IsOk() )
1081     {
1082         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1083
1084         return;
1085     }
1086
1087     wxString text = GetItemText(itemSrc);
1088     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1089                  text.c_str(), GetItemText(itemDst).c_str());
1090
1091     // just do append here - we could also insert it just before/after the item
1092     // on which it was dropped, but this requires slightly more work... we also
1093     // completely ignore the client data and icon of the old item but could
1094     // copy them as well.
1095     //
1096     // Finally, we only copy one item here but we might copy the entire tree if
1097     // we were dragging a folder.
1098     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1099     AppendItem(itemDst, text, image);
1100 }
1101
1102 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1103 {
1104     wxLogMessage(wxT("OnBeginLabelEdit"));
1105
1106     // for testing, prevent this item's label editing
1107     wxTreeItemId itemId = event.GetItem();
1108     if ( IsTestItem(itemId) )
1109     {
1110         wxMessageBox(wxT("You can't edit this item."));
1111
1112         event.Veto();
1113     }
1114     else if ( itemId == GetRootItem() )
1115     {
1116         // test that it is possible to change the text of the item being edited
1117         SetItemText(itemId, _T("Editing root item"));
1118     }
1119 }
1120
1121 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1122 {
1123     wxLogMessage(wxT("OnEndLabelEdit"));
1124
1125     // don't allow anything except letters in the labels
1126     if ( !event.GetLabel().IsWord() )
1127     {
1128         wxMessageBox(wxT("The new label should be a single word."));
1129
1130         event.Veto();
1131     }
1132 }
1133
1134 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1135 {
1136     wxLogMessage(wxT("OnItemCollapsing"));
1137
1138     // for testing, prevent the user from collapsing the first child folder
1139     wxTreeItemId itemId = event.GetItem();
1140     if ( IsTestItem(itemId) )
1141     {
1142         wxMessageBox(wxT("You can't collapse this item."));
1143
1144         event.Veto();
1145     }
1146 }
1147
1148 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1149 {
1150     // show some info about this item
1151     wxTreeItemId itemId = event.GetItem();
1152     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1153
1154     if ( item != NULL )
1155     {
1156         item->ShowInfo(this);
1157     }
1158
1159     wxLogMessage(wxT("OnItemActivated"));
1160 }
1161
1162 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1163 {
1164     wxTreeItemId itemId = event.GetItem();
1165     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1166                                          : NULL;
1167
1168     wxLogMessage(wxT("OnItemMenu for item \"%s\""), item ? item->GetDesc()
1169                                                          : _T(""));
1170
1171     event.Skip();
1172 }
1173
1174 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1175 {
1176     wxPoint pt = event.GetPosition();
1177     wxTreeItemId item;
1178     if ( !HasFlag(wxTR_MULTIPLE) )
1179         item = GetSelection();
1180     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1181
1182     // check if event was generated by keyboard (MSW-specific?)
1183     if ( pt.x == -1 && pt.y == -1 ) //(this is how MSW indicates it)
1184     {
1185         // attempt to guess where to show the menu
1186         if ( item.IsOk() )
1187         {
1188             // if an item was clicked, show menu to the right of it
1189             wxRect rect;
1190             GetBoundingRect(item, rect, true /* only the label */);
1191             pt = wxPoint(rect.GetRight(), rect.GetTop());
1192         }
1193         else
1194         {
1195             pt = wxPoint(0, 0);
1196         }
1197     }
1198     else // event was generated by mouse, use supplied coords
1199     {
1200         pt = ScreenToClient(pt);
1201     }
1202
1203     ShowMenu(item, pt);
1204 }
1205
1206 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1207 {
1208     wxString title;
1209     if ( id.IsOk() )
1210     {
1211         title << wxT("Menu for ") << GetItemText(id);
1212     }
1213     else
1214     {
1215         title = wxT("Menu for no particular item");
1216     }
1217
1218 #if wxUSE_MENUS
1219     wxMenu menu(title);
1220     menu.Append(TreeTest_About, wxT("&About..."));
1221     menu.Append(TreeTest_Dump, wxT("&Dump"));
1222
1223     PopupMenu(&menu, pt);
1224 #endif // wxUSE_MENUS
1225 }
1226
1227 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1228 {
1229     wxTreeItemId itemId = event.GetItem();
1230     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1231                                          : NULL;
1232
1233     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1234                                                         : _T(""));
1235
1236     event.Skip();
1237 }
1238
1239 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1240 {
1241     wxLogMessage(wxT("Right mouse button down"));
1242
1243     event.Skip();
1244 }
1245
1246 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1247 {
1248     wxLogMessage(wxT("Right mouse button up"));
1249
1250     event.Skip();
1251 }
1252
1253 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1254 {
1255     wxTreeItemId id = HitTest(event.GetPosition());
1256     if ( !id )
1257         wxLogMessage(wxT("No item under mouse"));
1258     else
1259     {
1260         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1261         if ( item )
1262             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1263     }
1264
1265     event.Skip();
1266 }
1267
1268 static inline const wxChar *Bool2String(bool b)
1269 {
1270     return b ? wxT("") : wxT("not ");
1271 }
1272
1273 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1274 {
1275     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1276                  wxT("%u children (%u immediately under this item)."),
1277                  m_desc.c_str(),
1278                  Bool2String(tree->IsSelected(GetId())),
1279                  Bool2String(tree->IsExpanded(GetId())),
1280                  Bool2String(tree->IsBold(GetId())),
1281                  tree->GetChildrenCount(GetId()),
1282                  tree->GetChildrenCount(GetId(), false));
1283 }