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 #if wxUSE_LOG
 264     // create the controls
 265     m_textCtrl = new wxTextCtrl(this, wxID_ANY, wxT(""),
 266                                 wxDefaultPosition, wxDefaultSize,
 267                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 268 #endif // wxUSE_LOG
 269
 270     CreateTreeWithDefStyle();
 271
 272     menu_bar->Check(TreeTest_ToggleImages, true);
 273
 274 #if wxUSE_STATUSBAR
 275     // create a status bar
 276     CreateStatusBar(2);
 277 #endif // wxUSE_STATUSBAR
 278
 279 #if wxUSE_LOG
 280 #ifdef __WXMOTIF__
 281     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 282     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 283     delete wxLog::SetActiveTarget(new wxLogStderr);
 284 #else
 285     // set our text control as the log target
 286     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 287     delete wxLog::SetActiveTarget(logWindow);
 288 #endif
 289 #endif // wxUSE_LOG
 290 }
 291
 292 MyFrame::~MyFrame()
 293 {
 294 #if wxUSE_LOG
 295     delete wxLog::SetActiveTarget(NULL);
 296 #endif // wxUSE_LOG
 297 }
 298
 299 void MyFrame::CreateTreeWithDefStyle()
 300 {
 301     long style = wxTR_DEFAULT_STYLE |
 302 #ifndef NO_VARIABLE_HEIGHT
 303                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 304 #endif
 305                  wxTR_EDIT_LABELS;
 306
 307     CreateTree(style | wxSUNKEN_BORDER);
 308
 309     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 310     // everything
 311     wxMenuBar *mbar = GetMenuBar();
 312     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 313     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 314     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 315     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 316     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 317     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 318     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 319     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 320 }
 321
 322 void MyFrame::CreateTree(long style)
 323 {
 324     m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
 325                                 wxDefaultPosition, wxDefaultSize,
 326                                 style);
 327     Resize();
 328 }
 329
 330 void MyFrame::TogStyle(int id, long flag)
 331 {
 332     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 333
 334     // most treectrl styles can't be changed on the fly using the native
 335     // control and the tree must be recreated
 336 #ifndef __WXMSW__
 337     m_treeCtrl->SetWindowStyle(style);
 338 #else // MSW
 339     delete m_treeCtrl;
 340     CreateTree(style);
 341 #endif // !MSW/MSW
 342
 343     GetMenuBar()->Check(id, (style & flag) != 0);
 344 }
 345
 346 void MyFrame::OnIdle(wxIdleEvent& event)
 347 {
 348 #if wxUSE_STATUSBAR
 349     if ( m_treeCtrl )
 350     {
 351         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 352
 353         SetStatusText(wxString::Format
 354                       (
 355                         _T("Root/last item is %svisible/%svisible"),
 356                         m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 357                         m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
 358                             ? _T("") : _T("not ")
 359                       ), 1);
 360     }
 361 #endif // wxUSE_STATUSBAR
 362
 363     event.Skip();
 364 }
 365
 366 void MyFrame::OnSize(wxSizeEvent& event)
 367 {
 368     if ( m_treeCtrl
 369 #if wxUSE_LOG
 370                     && m_textCtrl
 371 #endif // wxUSE_LOG
 372                                   )
 373     {
 374         Resize();
 375     }
 376
 377     event.Skip();
 378 }
 379
 380 void MyFrame::Resize()
 381 {
 382     wxSize size = GetClientSize();
 383     m_treeCtrl->SetSize(0, 0, size.x, size.y
 384 #if !wxUSE_LOG
 385                                             );
 386 #else
 387                                             *2/3);
 388     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 389 #endif
 390 }
 391
 392 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 393 {
 394     Close(true);
 395 }
 396
 397 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 398 {
 399     wxMessageBox(wxT("Tree test sample\n")
 400                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 401                  wxT("About tree test"),
 402                  wxOK | wxICON_INFORMATION, this);
 403 }
 404
 405 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 406 {
 407     wxTreeItemId item = m_treeCtrl->GetSelection();
 408
 409     CHECK_ITEM( item );
 410
 411     // old code - now we edit in place
 412 #if 0
 413     static wxString s_text;
 414     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 415             s_text, this);
 416     if ( !s_text.empty() )
 417     {
 418         m_treeCtrl->SetItemText(item, s_text);
 419     }
 420 #endif // 0
 421
 422     // TODO demonstrate creating a custom edit control...
 423     (void)m_treeCtrl->EditLabel(item);
 424 }
 425
 426 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 427 {
 428     wxTreeItemId item = m_treeCtrl->GetSelection();
 429
 430     CHECK_ITEM( item );
 431
 432     int i = m_treeCtrl->GetChildrenCount( item, false );
 433
 434     wxLogMessage(wxT("%d children"), i);
 435 }
 436
 437 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 438 {
 439     wxTreeItemId item = m_treeCtrl->GetSelection();
 440
 441     CHECK_ITEM( item );
 442
 443     int i = m_treeCtrl->GetChildrenCount( item );
 444
 445     wxLogMessage(wxT("%d children"), i);
 446 }
 447
 448 void MyFrame::DoSort(bool reverse)
 449 {
 450     wxTreeItemId item = m_treeCtrl->GetSelection();
 451
 452     CHECK_ITEM( item );
 453
 454     m_treeCtrl->DoSortChildren(item, reverse);
 455 }
 456
 457 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 458 {
 459     wxTreeItemId root = m_treeCtrl->GetSelection();
 460
 461     CHECK_ITEM( root );
 462
 463     m_treeCtrl->GetItemsRecursively(root);
 464 }
 465
 466 #ifndef NO_MULTIPLE_SELECTION
 467
 468 void MyFrame::OnToggleSel(wxCommandEvent& event)
 469 {
 470     TogStyle(event.GetId(), wxTR_MULTIPLE);
 471 }
 472
 473 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 474 {
 475     wxArrayTreeItemIds array;
 476
 477     size_t count = m_treeCtrl->GetSelections(array);
 478     wxLogMessage(wxT("%u items selected"), count);
 479
 480     for ( size_t n = 0; n < count; n++ )
 481     {
 482         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 483     }
 484 }
 485
 486 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 487 {
 488     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 489 }
 490
 491 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 492 {
 493     m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 494 }
 495
 496 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 497 {
 498     m_treeCtrl->UnselectAll();
 499 }
 500
 501 #endif // NO_MULTIPLE_SELECTION
 502
 503 void MyFrame::DoSetBold(bool bold)
 504 {
 505     wxTreeItemId item = m_treeCtrl->GetSelection();
 506
 507     CHECK_ITEM( item );
 508
 509     m_treeCtrl->SetItemBold(item, bold);
 510 }
 511
 512 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 513 {
 514     wxTreeItemId item = m_treeCtrl->GetSelection();
 515
 516     CHECK_ITEM( item );
 517
 518     m_treeCtrl->Delete(item);
 519 }
 520
 521 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 522 {
 523     wxTreeItemId item = m_treeCtrl->GetSelection();
 524
 525     CHECK_ITEM( item );
 526
 527     m_treeCtrl->DeleteChildren(item);
 528 }
 529
 530 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 531 {
 532     m_treeCtrl->DeleteAllItems();
 533 }
 534
 535 void MyFrame::OnRecreate(wxCommandEvent& event)
 536 {
 537     OnDeleteAll(event);
 538     m_treeCtrl->AddTestItemsToTree(5, 2);
 539 }
 540
 541 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 542 {
 543     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 544                                     wxT("Size: "),
 545                                     wxT("TreeCtrl sample"),
 546                                     m_treeCtrl->ImageSize());
 547     if ( size == -1 )
 548         return;
 549
 550     m_treeCtrl->CreateImageList(size);
 551     wxGetApp().SetShowImages(true);
 552 }
 553
 554 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 555 {
 556     if ( wxGetApp().ShowImages() )
 557     {
 558         m_treeCtrl->CreateImageList(-1);
 559         wxGetApp().SetShowImages(false);
 560     }
 561     else
 562     {
 563         m_treeCtrl->CreateImageList(0);
 564         wxGetApp().SetShowImages(true);
 565     }
 566 }
 567
 568 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 569 {
 570 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 571     if ( wxGetApp().ShowButtons() )
 572     {
 573         m_treeCtrl->CreateButtonsImageList(-1);
 574         wxGetApp().SetShowButtons(false);
 575     }
 576     else
 577     {
 578         m_treeCtrl->CreateButtonsImageList(15);
 579         wxGetApp().SetShowButtons(true);
 580     }
 581 #endif
 582 }
 583
 584 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 585 {
 586     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 587 }
 588
 589 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 590 {
 591     m_treeCtrl->DoEnsureVisible();
 592 }
 593
 594 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 595 {
 596     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 597     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 598 }
 599
 600 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 601 {
 602     static int s_num = 0;
 603
 604     wxString text;
 605     text.Printf(wxT("Item #%d"), ++s_num);
 606
 607     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 608                            text /*,
 609                            MyTreeCtrl::TreeCtrlIcon_File */ );
 610 }
 611
 612 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 613 {
 614     unsigned int indent = m_treeCtrl->GetIndent();
 615     if (indent < 100)
 616         m_treeCtrl->SetIndent( indent+5 );
 617 }
 618
 619 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 620 {
 621     unsigned int indent = m_treeCtrl->GetIndent();
 622     if (indent > 10)
 623         m_treeCtrl->SetIndent( indent-5 );
 624 }
 625
 626 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 627 {
 628     unsigned int indent = m_treeCtrl->GetSpacing();
 629     if (indent < 100)
 630         m_treeCtrl->SetSpacing( indent+5 );
 631 }
 632
 633 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 634 {
 635     unsigned int indent = m_treeCtrl->GetSpacing();
 636     if (indent > 10)
 637         m_treeCtrl->SetSpacing( indent-5 );
 638 }
 639
 640 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 641 {
 642     wxTreeItemId item = m_treeCtrl->GetSelection();
 643
 644     CHECK_ITEM( item );
 645
 646     m_treeCtrl->DoToggleIcon(item);
 647 }
 648
 649 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 650 {
 651     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 652     if ( col.Ok() )
 653         m_treeCtrl->SetForegroundColour(col);
 654 }
 655
 656 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 657 {
 658     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 659     if ( col.Ok() )
 660         m_treeCtrl->SetBackgroundColour(col);
 661 }
 662
 663 // MyTreeCtrl implementation
 664 #if USE_GENERIC_TREECTRL
 665 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 666 #else
 667 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 668 #endif
 669
 670 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 671                        const wxPoint& pos, const wxSize& size,
 672                        long style)
 673           : wxTreeCtrl(parent, id, pos, size, style)
 674 {
 675     m_reverseSort = false;
 676
 677     CreateImageList();
 678
 679     // Add some items to the tree
 680     AddTestItemsToTree(5, 2);
 681 }
 682
 683 void MyTreeCtrl::CreateImageList(int size)
 684 {
 685     if ( size == -1 )
 686     {
 687         SetImageList(NULL);
 688         return;
 689     }
 690     if ( size == 0 )
 691         size = m_imageSize;
 692     else
 693         m_imageSize = size;
 694
 695     // Make an image list containing small icons
 696     wxImageList *images = new wxImageList(size, size, true);
 697
 698     // should correspond to TreeCtrlIcon_xxx enum
 699     wxBusyCursor wait;
 700     wxIcon icons[5];
 701     icons[0] = wxIcon(icon1_xpm);
 702     icons[1] = wxIcon(icon2_xpm);
 703     icons[2] = wxIcon(icon3_xpm);
 704     icons[3] = wxIcon(icon4_xpm);
 705     icons[4] = wxIcon(icon5_xpm);
 706
 707     int sizeOrig = icons[0].GetWidth();
 708     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 709     {
 710         if ( size == sizeOrig )
 711         {
 712             images->Add(icons[i]);
 713         }
 714         else
 715         {
 716             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 717         }
 718     }
 719
 720     AssignImageList(images);
 721 }
 722
 723 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 724 void MyTreeCtrl::CreateButtonsImageList(int size)
 725 {
 726     if ( size == -1 )
 727     {
 728         SetButtonsImageList(NULL);
 729         return;
 730     }
 731
 732     // Make an image list containing small icons
 733     wxImageList *images = new wxImageList(size, size, true);
 734
 735     // should correspond to TreeCtrlIcon_xxx enum
 736     wxBusyCursor wait;
 737     wxIcon icons[4];
 738     icons[0] = wxIcon(icon3_xpm);   // closed
 739     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 740     icons[2] = wxIcon(icon5_xpm);   // open
 741     icons[3] = wxIcon(icon5_xpm);   // open, selected
 742
 743     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 744     {
 745         int sizeOrig = icons[i].GetWidth();
 746         if ( size == sizeOrig )
 747         {
 748             images->Add(icons[i]);
 749         }
 750         else
 751         {
 752             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 753         }
 754     }
 755
 756     AssignButtonsImageList(images);
 757 #else
 758 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 759 {
 760 #endif
 761 }
 762
 763 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 764                                const wxTreeItemId& item2)
 765 {
 766     if ( m_reverseSort )
 767     {
 768         // just exchange 1st and 2nd items
 769         return wxTreeCtrl::OnCompareItems(item2, item1);
 770     }
 771     else
 772     {
 773         return wxTreeCtrl::OnCompareItems(item1, item2);
 774     }
 775 }
 776
 777 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 778                                      size_t numChildren,
 779                                      size_t depth,
 780                                      size_t folder)
 781 {
 782     if ( depth > 0 )
 783     {
 784         bool hasChildren = depth > 1;
 785
 786         wxString str;
 787         for ( size_t n = 0; n < numChildren; n++ )
 788         {
 789             // at depth 1 elements won't have any more children
 790             if ( hasChildren )
 791                 str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
 792             else
 793                 str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
 794
 795             // here we pass to AppendItem() normal and selected item images (we
 796             // suppose that selected image follows the normal one in the enum)
 797             int image, imageSel;
 798             if ( wxGetApp().ShowImages() )
 799             {
 800                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 801                 imageSel = image + 1;
 802             }
 803             else
 804             {
 805                 image = imageSel = -1;
 806             }
 807             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 808                                          new MyTreeItemData(str));
 809
 810             // and now we also set the expanded one (only for the folders)
 811             if ( hasChildren && wxGetApp().ShowImages() )
 812             {
 813                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 814                              wxTreeItemIcon_Expanded);
 815             }
 816
 817             // remember the last child for OnEnsureVisible()
 818             if ( !hasChildren && n == numChildren - 1 )
 819             {
 820                 m_lastItem = id;
 821             }
 822
 823             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 824         }
 825     }
 826     //else: done!
 827 }
 828
 829 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 830                                     size_t depth)
 831 {
 832     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 833     wxTreeItemId rootId = AddRoot(wxT("Root"),
 834                                   image, image,
 835                                   new MyTreeItemData(wxT("Root item")));
 836     if ( image != -1 )
 837     {
 838         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 839     }
 840
 841     AddItemsRecursively(rootId, numChildren, depth, 0);
 842
 843     // set some colours/fonts for testing
 844     SetItemFont(rootId, *wxITALIC_FONT);
 845
 846     wxTreeItemIdValue cookie;
 847     wxTreeItemId id = GetFirstChild(rootId, cookie);
 848     SetItemTextColour(id, *wxBLUE);
 849
 850     id = GetNextChild(rootId, cookie);
 851     id = GetNextChild(rootId, cookie);
 852     SetItemTextColour(id, *wxRED);
 853     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 854 }
 855
 856 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 857                                      wxTreeItemIdValue cookie)
 858 {
 859     wxTreeItemId id;
 860
 861     if ( !cookie )
 862         id = GetFirstChild(idParent, cookie);
 863     else
 864         id = GetNextChild(idParent, cookie);
 865
 866     if ( !id.IsOk() )
 867         return;
 868
 869     wxString text = GetItemText(id);
 870     wxLogMessage(text);
 871
 872     if (ItemHasChildren(id))
 873         GetItemsRecursively(id);
 874
 875     GetItemsRecursively(idParent, cookie);
 876 }
 877
 878 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 879 {
 880     int image = (GetItemImage(item) == TreeCtrlIcon_Folder)
 881                     ? TreeCtrlIcon_File
 882                     : TreeCtrlIcon_Folder;
 883     SetItemImage(item, image, wxTreeItemIcon_Normal);
 884
 885     image = (GetItemImage(item) == TreeCtrlIcon_FolderSelected)
 886                     ? TreeCtrlIcon_FileSelected
 887                     : TreeCtrlIcon_FolderSelected;
 888     SetItemImage(item, image, wxTreeItemIcon_Selected);
 889 }
 890
 891
 892 // avoid repetition
 893 #define TREE_EVENT_HANDLER(name)                                 \
 894 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 895 {                                                                \
 896     wxLogMessage(wxT(#name));                                    \
 897     SetLastItem(wxTreeItemId());                                 \
 898     event.Skip();                                                \
 899 }
 900
 901 TREE_EVENT_HANDLER(OnBeginRDrag)
 902 TREE_EVENT_HANDLER(OnDeleteItem)
 903 TREE_EVENT_HANDLER(OnGetInfo)
 904 TREE_EVENT_HANDLER(OnSetInfo)
 905 TREE_EVENT_HANDLER(OnItemExpanded)
 906 TREE_EVENT_HANDLER(OnItemExpanding)
 907 TREE_EVENT_HANDLER(OnItemCollapsed)
 908 TREE_EVENT_HANDLER(OnSelChanged)
 909 TREE_EVENT_HANDLER(OnSelChanging)
 910
 911 #undef TREE_EVENT_HANDLER
 912
 913 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 914 {
 915     wxString key;
 916     long keycode = event.GetKeyCode();
 917     {
 918         switch ( keycode )
 919         {
 920             case WXK_BACK: key = wxT("BACK"); break;
 921             case WXK_TAB: key = wxT("TAB"); break;
 922             case WXK_RETURN: key = wxT("RETURN"); break;
 923             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 924             case WXK_SPACE: key = wxT("SPACE"); break;
 925             case WXK_DELETE: key = wxT("DELETE"); break;
 926             case WXK_START: key = wxT("START"); break;
 927             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 928             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 929             case WXK_CANCEL: key = wxT("CANCEL"); break;
 930             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 931             case WXK_CLEAR: key = wxT("CLEAR"); break;
 932             case WXK_SHIFT: key = wxT("SHIFT"); break;
 933             case WXK_ALT: key = wxT("ALT"); break;
 934             case WXK_CONTROL: key = wxT("CONTROL"); break;
 935             case WXK_MENU: key = wxT("MENU"); break;
 936             case WXK_PAUSE: key = wxT("PAUSE"); break;
 937             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 938             case WXK_END: key = wxT("END"); break;
 939             case WXK_HOME: key = wxT("HOME"); break;
 940             case WXK_LEFT: key = wxT("LEFT"); break;
 941             case WXK_UP: key = wxT("UP"); break;
 942             case WXK_RIGHT: key = wxT("RIGHT"); break;
 943             case WXK_DOWN: key = wxT("DOWN"); break;
 944             case WXK_SELECT: key = wxT("SELECT"); break;
 945             case WXK_PRINT: key = wxT("PRINT"); break;
 946             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 947             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 948             case WXK_INSERT: key = wxT("INSERT"); break;
 949             case WXK_HELP: key = wxT("HELP"); break;
 950             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 951             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 952             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
 953             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
 954             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
 955             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
 956             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
 957             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
 958             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
 959             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
 960             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
 961             case WXK_ADD: key = wxT("ADD"); break;
 962             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
 963             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
 964             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
 965             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
 966             case WXK_F1: key = wxT("F1"); break;
 967             case WXK_F2: key = wxT("F2"); break;
 968             case WXK_F3: key = wxT("F3"); break;
 969             case WXK_F4: key = wxT("F4"); break;
 970             case WXK_F5: key = wxT("F5"); break;
 971             case WXK_F6: key = wxT("F6"); break;
 972             case WXK_F7: key = wxT("F7"); break;
 973             case WXK_F8: key = wxT("F8"); break;
 974             case WXK_F9: key = wxT("F9"); break;
 975             case WXK_F10: key = wxT("F10"); break;
 976             case WXK_F11: key = wxT("F11"); break;
 977             case WXK_F12: key = wxT("F12"); break;
 978             case WXK_F13: key = wxT("F13"); break;
 979             case WXK_F14: key = wxT("F14"); break;
 980             case WXK_F15: key = wxT("F15"); break;
 981             case WXK_F16: key = wxT("F16"); break;
 982             case WXK_F17: key = wxT("F17"); break;
 983             case WXK_F18: key = wxT("F18"); break;
 984             case WXK_F19: key = wxT("F19"); break;
 985             case WXK_F20: key = wxT("F20"); break;
 986             case WXK_F21: key = wxT("F21"); break;
 987             case WXK_F22: key = wxT("F22"); break;
 988             case WXK_F23: key = wxT("F23"); break;
 989             case WXK_F24: key = wxT("F24"); break;
 990             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
 991             case WXK_SCROLL: key = wxT("SCROLL"); break;
 992             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
 993             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
 994             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
 995             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
 996             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
 997             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
 998             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
 999             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1000             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1001             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1002             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1003             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1004             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1005             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1006             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1007             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1008             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1009             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1010             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1011             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1012             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1013             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1014             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1015             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1016             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1017             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1018
1019             default:
1020             {
1021                if ( keycode < 128 && wxIsprint((int)keycode) )
1022                    key.Printf(wxT("'%c'"), (char)keycode);
1023                else if ( keycode > 0 && keycode < 27 )
1024                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1025                else
1026                    key.Printf(wxT("unknown (%ld)"), keycode);
1027             }
1028         }
1029     }
1030
1031     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1032                   name,
1033                   key.c_str(),
1034                   event.ControlDown() ? wxT('C') : wxT('-'),
1035                   event.AltDown() ? wxT('A') : wxT('-'),
1036                   event.ShiftDown() ? wxT('S') : wxT('-'),
1037                   event.MetaDown() ? wxT('M') : wxT('-'));
1038 }
1039
1040 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1041 {
1042     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1043
1044     event.Skip();
1045 }
1046
1047 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1048 {
1049     // need to explicitly allow drag
1050     if ( event.GetItem() != GetRootItem() )
1051     {
1052         m_draggedItem = event.GetItem();
1053
1054         wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
1055                      GetItemText(m_draggedItem).c_str());
1056
1057         event.Allow();
1058     }
1059     else
1060     {
1061         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1062     }
1063 }
1064
1065 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1066 {
1067     wxTreeItemId itemSrc = m_draggedItem,
1068                  itemDst = event.GetItem();
1069     m_draggedItem = (wxTreeItemId)0l;
1070
1071     // where to copy the item?
1072     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1073     {
1074         // copy to the parent then
1075         itemDst = GetItemParent(itemDst);
1076     }
1077
1078     if ( !itemDst.IsOk() )
1079     {
1080         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1081
1082         return;
1083     }
1084
1085     wxString text = GetItemText(itemSrc);
1086     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1087                  text.c_str(), GetItemText(itemDst).c_str());
1088
1089     // just do append here - we could also insert it just before/after the item
1090     // on which it was dropped, but this requires slightly more work... we also
1091     // completely ignore the client data and icon of the old item but could
1092     // copy them as well.
1093     //
1094     // Finally, we only copy one item here but we might copy the entire tree if
1095     // we were dragging a folder.
1096     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1097     AppendItem(itemDst, text, image);
1098 }
1099
1100 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1101 {
1102     wxLogMessage(wxT("OnBeginLabelEdit"));
1103
1104     // for testing, prevent this item's label editing
1105     wxTreeItemId itemId = event.GetItem();
1106     if ( IsTestItem(itemId) )
1107     {
1108         wxMessageBox(wxT("You can't edit this item."));
1109
1110         event.Veto();
1111     }
1112     else if ( itemId == GetRootItem() )
1113     {
1114         // test that it is possible to change the text of the item being edited
1115         SetItemText(itemId, _T("Editing root item"));
1116     }
1117 }
1118
1119 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1120 {
1121     wxLogMessage(wxT("OnEndLabelEdit"));
1122
1123     // don't allow anything except letters in the labels
1124     if ( !event.GetLabel().IsWord() )
1125     {
1126         wxMessageBox(wxT("The new label should be a single word."));
1127
1128         event.Veto();
1129     }
1130 }
1131
1132 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1133 {
1134     wxLogMessage(wxT("OnItemCollapsing"));
1135
1136     // for testing, prevent the user from collapsing the first child folder
1137     wxTreeItemId itemId = event.GetItem();
1138     if ( IsTestItem(itemId) )
1139     {
1140         wxMessageBox(wxT("You can't collapse this item."));
1141
1142         event.Veto();
1143     }
1144 }
1145
1146 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1147 {
1148     // show some info about this item
1149     wxTreeItemId itemId = event.GetItem();
1150     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1151
1152     if ( item != NULL )
1153     {
1154         item->ShowInfo(this);
1155     }
1156
1157     wxLogMessage(wxT("OnItemActivated"));
1158 }
1159
1160 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1161 {
1162     wxTreeItemId itemId = event.GetItem();
1163     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1164                                          : NULL;
1165
1166     wxLogMessage(wxT("OnItemMenu for item \"%s\""), item ? item->GetDesc()
1167                                                          : _T(""));
1168
1169     event.Skip();
1170 }
1171
1172 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1173 {
1174     wxPoint pt = event.GetPosition();
1175     wxTreeItemId item;
1176     if ( !HasFlag(wxTR_MULTIPLE) )
1177         item = GetSelection();
1178     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1179
1180     // check if event was generated by keyboard (MSW-specific?)
1181     if ( pt.x == -1 && pt.y == -1 ) //(this is how MSW indicates it)
1182     {
1183         // attempt to guess where to show the menu
1184         if ( item.IsOk() )
1185         {
1186             // if an item was clicked, show menu to the right of it
1187             wxRect rect;
1188             GetBoundingRect(item, rect, true /* only the label */);
1189             pt = wxPoint(rect.GetRight(), rect.GetTop());
1190         }
1191         else
1192         {
1193             pt = wxPoint(0, 0);
1194         }
1195     }
1196     else // event was generated by mouse, use supplied coords
1197     {
1198         pt = ScreenToClient(pt);
1199     }
1200
1201     ShowMenu(item, pt);
1202 }
1203
1204 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1205 {
1206     wxString title;
1207     if ( id.IsOk() )
1208     {
1209         title << wxT("Menu for ") << GetItemText(id);
1210     }
1211     else
1212     {
1213         title = wxT("Menu for no particular item");
1214     }
1215
1216 #if wxUSE_MENUS
1217     wxMenu menu(title);
1218     menu.Append(TreeTest_About, wxT("&About..."));
1219     menu.Append(TreeTest_Dump, wxT("&Dump"));
1220
1221     PopupMenu(&menu, pt);
1222 #endif // wxUSE_MENUS
1223 }
1224
1225 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1226 {
1227     wxTreeItemId itemId = event.GetItem();
1228     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1229                                          : NULL;
1230
1231     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1232                                                         : _T(""));
1233
1234     event.Skip();
1235 }
1236
1237 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1238 {
1239     wxLogMessage(wxT("Right mouse button down"));
1240
1241     event.Skip();
1242 }
1243
1244 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1245 {
1246     wxLogMessage(wxT("Right mouse button up"));
1247
1248     event.Skip();
1249 }
1250
1251 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1252 {
1253     wxTreeItemId id = HitTest(event.GetPosition());
1254     if ( !id )
1255         wxLogMessage(wxT("No item under mouse"));
1256     else
1257     {
1258         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1259         if ( item )
1260             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1261     }
1262
1263     event.Skip();
1264 }
1265
1266 static inline const wxChar *Bool2String(bool b)
1267 {
1268     return b ? wxT("") : wxT("not ");
1269 }
1270
1271 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1272 {
1273     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1274                  wxT("%u children (%u immediately under this item)."),
1275                  m_desc.c_str(),
1276                  Bool2String(tree->IsSelected(GetId())),
1277                  Bool2String(tree->IsExpanded(GetId())),
1278                  Bool2String(tree->IsBold(GetId())),
1279                  tree->GetChildrenCount(GetId()),
1280                  tree->GetChildrenCount(GetId(), false));
1281 }