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(Highlight)
  80     MENU_LINK(Dump)
  81 #ifndef NO_MULTIPLE_SELECTION
  82     MENU_LINK(DumpSelected)
  83     MENU_LINK(Select)
  84     MENU_LINK(Unselect)
  85     MENU_LINK(ToggleSel)
  86 #endif // NO_MULTIPLE_SELECTION
  87     MENU_LINK(Rename)
  88     MENU_LINK(Count)
  89     MENU_LINK(CountRec)
  90     MENU_LINK(Sort)
  91     MENU_LINK(SortRev)
  92     MENU_LINK(SetBold)
  93     MENU_LINK(ClearBold)
  94     MENU_LINK(Delete)
  95     MENU_LINK(DeleteChildren)
  96     MENU_LINK(DeleteAll)
  97     MENU_LINK(Recreate)
  98     MENU_LINK(ToggleImages)
  99     MENU_LINK(ToggleButtons)
 100     MENU_LINK(SetImageSize)
 101     MENU_LINK(CollapseAndReset)
 102     MENU_LINK(EnsureVisible)
 103     MENU_LINK(AddItem)
 104     MENU_LINK(InsertItem)
 105     MENU_LINK(IncIndent)
 106     MENU_LINK(DecIndent)
 107     MENU_LINK(IncSpacing)
 108     MENU_LINK(DecSpacing)
 109     MENU_LINK(ToggleIcon)
 110     MENU_LINK(SelectRoot)
 111 #undef MENU_LINK
 112
 113 END_EVENT_TABLE()
 114
 115 #if USE_GENERIC_TREECTRL
 116 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 117 #else
 118 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 119 #endif
 120     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 121     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 122     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 123     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 124     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 125     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 126 #if 0       // there are so many of those that logging them causes flicker
 127     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 128 #endif
 129     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 130     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 131     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 132     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 133     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 134
 135     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 136     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 137     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 138     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 139
 140     // so many differents ways to handle right mouse button clicks...
 141     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 142     // EVT_TREE_ITEM_MENU is the preferred event for creating context menus
 143     // on a tree control, because it includes the point of the click or item,
 144     // meaning that no additional placement calculations are required.
 145     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 146     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 147
 148     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 149     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 150     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 151 END_EVENT_TABLE()
 152
 153 IMPLEMENT_APP(MyApp)
 154
 155 bool MyApp::OnInit()
 156 {
 157     if ( !wxApp::OnInit() )
 158         return false;
 159
 160     // Create the main frame window
 161     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 162
 163     // Show the frame
 164     frame->Show(true);
 165     SetTopWindow(frame);
 166
 167     return true;
 168 }
 169
 170
 171 // My frame constructor
 172 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 173        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 174          m_treeCtrl(NULL)
 175 #if wxUSE_LOG
 176          , m_textCtrl(NULL)
 177 #endif // wxUSE_LOG
 178 {
 179     // This reduces flicker effects - even better would be to define
 180     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 181     // show or hidden, the frame is sent a background erase event.
 182     SetBackgroundColour(wxColour(255, 255, 255));
 183
 184     // Give it an icon
 185     SetIcon(wxICON(sample));
 186
 187 #if wxUSE_MENUS
 188     // Make a menubar
 189     wxMenu *file_menu = new wxMenu,
 190            *style_menu = new wxMenu,
 191            *tree_menu = new wxMenu,
 192            *item_menu = new wxMenu;
 193
 194     file_menu->Append(TreeTest_About, wxT("&About..."));
 195     file_menu->AppendSeparator();
 196     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 197
 198     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 199     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 200     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 201     style_menu->AppendSeparator();
 202     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 203     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 204     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 205     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 206     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 207     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 208 #ifndef NO_MULTIPLE_SELECTION
 209     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
 210 #endif // NO_MULTIPLE_SELECTION
 211     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 212     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 213     style_menu->AppendSeparator();
 214     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 215     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 216     style_menu->AppendSeparator();
 217     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 218
 219     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 220     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 221     tree_menu->AppendSeparator();
 222     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 223     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 224     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 225     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 226     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 227     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 228     tree_menu->AppendSeparator();
 229     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 230     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 231     tree_menu->AppendSeparator();
 232     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 233     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 234     tree_menu->AppendSeparator();
 235     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 236     tree_menu->AppendSeparator();
 237     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 238     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 239     tree_menu->AppendSeparator();
 240     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 241     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 242
 243     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 244     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 245
 246     item_menu->AppendSeparator();
 247     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 248     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 249     item_menu->AppendSeparator();
 250     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 251
 252 #ifndef NO_MULTIPLE_SELECTION
 253     item_menu->AppendSeparator();
 254     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 255     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 256     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 257 #endif // NO_MULTIPLE_SELECTION
 258
 259     wxMenuBar *menu_bar = new wxMenuBar;
 260     menu_bar->Append(file_menu, wxT("&File"));
 261     menu_bar->Append(style_menu, wxT("&Style"));
 262     menu_bar->Append(tree_menu, wxT("&Tree"));
 263     menu_bar->Append(item_menu, wxT("&Item"));
 264     SetMenuBar(menu_bar);
 265 #endif // wxUSE_MENUS
 266
 267     m_panel = new wxPanel(this);
 268
 269 #if wxUSE_LOG
 270     // create the controls
 271     m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""),
 272                                 wxDefaultPosition, wxDefaultSize,
 273                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 274 #endif // wxUSE_LOG
 275
 276     CreateTreeWithDefStyle();
 277
 278     menu_bar->Check(TreeTest_ToggleImages, true);
 279
 280 #if wxUSE_STATUSBAR
 281     // create a status bar
 282     CreateStatusBar(2);
 283 #endif // wxUSE_STATUSBAR
 284
 285 #if wxUSE_LOG
 286 #ifdef __WXMOTIF__
 287     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 288     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 289     delete wxLog::SetActiveTarget(new wxLogStderr);
 290 #else
 291     // set our text control as the log target
 292     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 293     delete wxLog::SetActiveTarget(logWindow);
 294 #endif
 295 #endif // wxUSE_LOG
 296 }
 297
 298 MyFrame::~MyFrame()
 299 {
 300 #if wxUSE_LOG
 301     delete wxLog::SetActiveTarget(NULL);
 302 #endif // wxUSE_LOG
 303 }
 304
 305 void MyFrame::CreateTreeWithDefStyle()
 306 {
 307     long style = wxTR_DEFAULT_STYLE |
 308 #ifndef NO_VARIABLE_HEIGHT
 309                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 310 #endif
 311                  wxTR_EDIT_LABELS;
 312
 313     CreateTree(style | wxSUNKEN_BORDER);
 314
 315     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 316     // everything
 317     wxMenuBar *mbar = GetMenuBar();
 318     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 319     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 320     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 321     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 322     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 323     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 324     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 325     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 326 }
 327
 328 void MyFrame::CreateTree(long style)
 329 {
 330     m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl,
 331                                 wxDefaultPosition, wxDefaultSize,
 332                                 style);
 333     Resize();
 334 }
 335
 336 void MyFrame::TogStyle(int id, long flag)
 337 {
 338     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 339
 340     // most treectrl styles can't be changed on the fly using the native
 341     // control and the tree must be recreated
 342 #ifndef __WXMSW__
 343     m_treeCtrl->SetWindowStyle(style);
 344 #else // MSW
 345     delete m_treeCtrl;
 346     CreateTree(style);
 347 #endif // !MSW/MSW
 348
 349     GetMenuBar()->Check(id, (style & flag) != 0);
 350 }
 351
 352 void MyFrame::OnIdle(wxIdleEvent& event)
 353 {
 354 #if wxUSE_STATUSBAR
 355     if ( m_treeCtrl )
 356     {
 357         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 358
 359         SetStatusText(wxString::Format
 360                       (
 361                         _T("Root/last item is %svisible/%svisible"),
 362                         m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 363                         m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
 364                             ? _T("") : _T("not ")
 365                       ), 1);
 366     }
 367 #endif // wxUSE_STATUSBAR
 368
 369     event.Skip();
 370 }
 371
 372 void MyFrame::OnSize(wxSizeEvent& event)
 373 {
 374     if ( m_treeCtrl
 375 #if wxUSE_LOG
 376                     && m_textCtrl
 377 #endif // wxUSE_LOG
 378                                   )
 379     {
 380         Resize();
 381     }
 382
 383     event.Skip();
 384 }
 385
 386 void MyFrame::Resize()
 387 {
 388     wxSize size = GetClientSize();
 389     m_treeCtrl->SetSize(0, 0, size.x, size.y
 390 #if !wxUSE_LOG
 391                                             );
 392 #else
 393                                             *2/3);
 394     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 395 #endif
 396 }
 397
 398 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 399 {
 400     Close(true);
 401 }
 402
 403 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 404 {
 405     wxMessageBox(wxT("Tree test sample\n")
 406                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 407                  wxT("About tree test"),
 408                  wxOK | wxICON_INFORMATION, this);
 409 }
 410
 411 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 412 {
 413     wxTreeItemId item = m_treeCtrl->GetSelection();
 414
 415     CHECK_ITEM( item );
 416
 417     // old code - now we edit in place
 418 #if 0
 419     static wxString s_text;
 420     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 421             s_text, this);
 422     if ( !s_text.empty() )
 423     {
 424         m_treeCtrl->SetItemText(item, s_text);
 425     }
 426 #endif // 0
 427
 428     // TODO demonstrate creating a custom edit control...
 429     (void)m_treeCtrl->EditLabel(item);
 430 }
 431
 432 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 433 {
 434     wxTreeItemId item = m_treeCtrl->GetSelection();
 435
 436     CHECK_ITEM( item );
 437
 438     int i = m_treeCtrl->GetChildrenCount( item, false );
 439
 440     wxLogMessage(wxT("%d children"), i);
 441 }
 442
 443 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 444 {
 445     wxTreeItemId item = m_treeCtrl->GetSelection();
 446
 447     CHECK_ITEM( item );
 448
 449     int i = m_treeCtrl->GetChildrenCount( item );
 450
 451     wxLogMessage(wxT("%d children"), i);
 452 }
 453
 454 void MyFrame::DoSort(bool reverse)
 455 {
 456     wxTreeItemId item = m_treeCtrl->GetSelection();
 457
 458     CHECK_ITEM( item );
 459
 460     m_treeCtrl->DoSortChildren(item, reverse);
 461 }
 462
 463 void MyFrame::OnHighlight(wxCommandEvent& WXUNUSED(event))
 464 {
 465     wxTreeItemId id = m_treeCtrl->GetSelection();
 466
 467     CHECK_ITEM( id );
 468
 469     wxRect r;
 470     if ( !m_treeCtrl->GetBoundingRect(id, r, true /* text, not full row */) )
 471     {
 472         wxLogMessage(_T("Failed to get bounding item rect"));
 473         return;
 474     }
 475
 476     wxClientDC dc(m_treeCtrl);
 477     dc.SetBrush(*wxRED);
 478     dc.SetPen(*wxTRANSPARENT_PEN);
 479     dc.DrawRectangle(r);
 480     m_treeCtrl->Update();
 481 }
 482
 483 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 484 {
 485     wxTreeItemId root = m_treeCtrl->GetSelection();
 486
 487     CHECK_ITEM( root );
 488
 489     m_treeCtrl->GetItemsRecursively(root);
 490 }
 491
 492 #ifndef NO_MULTIPLE_SELECTION
 493
 494 void MyFrame::OnToggleSel(wxCommandEvent& event)
 495 {
 496     TogStyle(event.GetId(), wxTR_MULTIPLE);
 497 }
 498
 499 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 500 {
 501     wxArrayTreeItemIds array;
 502
 503     size_t count = m_treeCtrl->GetSelections(array);
 504     wxLogMessage(wxT("%u items selected"), unsigned(count));
 505
 506     for ( size_t n = 0; n < count; n++ )
 507     {
 508         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 509     }
 510 }
 511
 512 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 513 {
 514     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 515 }
 516
 517 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 518 {
 519     m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 520 }
 521
 522 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 523 {
 524     m_treeCtrl->UnselectAll();
 525 }
 526
 527 #endif // NO_MULTIPLE_SELECTION
 528
 529 void MyFrame::DoSetBold(bool bold)
 530 {
 531     wxTreeItemId item = m_treeCtrl->GetSelection();
 532
 533     CHECK_ITEM( item );
 534
 535     m_treeCtrl->SetItemBold(item, bold);
 536 }
 537
 538 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 539 {
 540     wxTreeItemId item = m_treeCtrl->GetSelection();
 541
 542     CHECK_ITEM( item );
 543
 544     m_treeCtrl->Delete(item);
 545 }
 546
 547 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 548 {
 549     wxTreeItemId item = m_treeCtrl->GetSelection();
 550
 551     CHECK_ITEM( item );
 552
 553     m_treeCtrl->DeleteChildren(item);
 554 }
 555
 556 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 557 {
 558     m_treeCtrl->DeleteAllItems();
 559 }
 560
 561 void MyFrame::OnRecreate(wxCommandEvent& event)
 562 {
 563     OnDeleteAll(event);
 564     m_treeCtrl->AddTestItemsToTree(5, 2);
 565 }
 566
 567 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 568 {
 569     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 570                                     wxT("Size: "),
 571                                     wxT("TreeCtrl sample"),
 572                                     m_treeCtrl->ImageSize());
 573     if ( size == -1 )
 574         return;
 575
 576     m_treeCtrl->CreateImageList(size);
 577     wxGetApp().SetShowImages(true);
 578 }
 579
 580 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 581 {
 582     if ( wxGetApp().ShowImages() )
 583     {
 584         m_treeCtrl->CreateImageList(-1);
 585         wxGetApp().SetShowImages(false);
 586     }
 587     else
 588     {
 589         m_treeCtrl->CreateImageList(0);
 590         wxGetApp().SetShowImages(true);
 591     }
 592 }
 593
 594 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 595 {
 596 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 597     if ( wxGetApp().ShowButtons() )
 598     {
 599         m_treeCtrl->CreateButtonsImageList(-1);
 600         wxGetApp().SetShowButtons(false);
 601     }
 602     else
 603     {
 604         m_treeCtrl->CreateButtonsImageList(15);
 605         wxGetApp().SetShowButtons(true);
 606     }
 607 #endif
 608 }
 609
 610 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 611 {
 612     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 613 }
 614
 615 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 616 {
 617     m_treeCtrl->DoEnsureVisible();
 618 }
 619
 620 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 621 {
 622     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 623     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 624 }
 625
 626 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 627 {
 628     static int s_num = 0;
 629
 630     wxString text;
 631     text.Printf(wxT("Item #%d"), ++s_num);
 632
 633     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 634                            text /*,
 635                            MyTreeCtrl::TreeCtrlIcon_File */ );
 636 }
 637
 638 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 639 {
 640     unsigned int indent = m_treeCtrl->GetIndent();
 641     if (indent < 100)
 642         m_treeCtrl->SetIndent( indent+5 );
 643 }
 644
 645 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 646 {
 647     unsigned int indent = m_treeCtrl->GetIndent();
 648     if (indent > 10)
 649         m_treeCtrl->SetIndent( indent-5 );
 650 }
 651
 652 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 653 {
 654     unsigned int indent = m_treeCtrl->GetSpacing();
 655     if (indent < 100)
 656         m_treeCtrl->SetSpacing( indent+5 );
 657 }
 658
 659 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 660 {
 661     unsigned int indent = m_treeCtrl->GetSpacing();
 662     if (indent > 10)
 663         m_treeCtrl->SetSpacing( indent-5 );
 664 }
 665
 666 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 667 {
 668     wxTreeItemId item = m_treeCtrl->GetSelection();
 669
 670     CHECK_ITEM( item );
 671
 672     m_treeCtrl->DoToggleIcon(item);
 673 }
 674
 675 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 676 {
 677     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 678     if ( col.Ok() )
 679         m_treeCtrl->SetForegroundColour(col);
 680 }
 681
 682 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 683 {
 684     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 685     if ( col.Ok() )
 686         m_treeCtrl->SetBackgroundColour(col);
 687 }
 688
 689 // MyTreeCtrl implementation
 690 #if USE_GENERIC_TREECTRL
 691 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 692 #else
 693 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 694 #endif
 695
 696 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 697                        const wxPoint& pos, const wxSize& size,
 698                        long style)
 699           : wxTreeCtrl(parent, id, pos, size, style)
 700 {
 701     m_reverseSort = false;
 702
 703     CreateImageList();
 704
 705     // Add some items to the tree
 706     AddTestItemsToTree(5, 2);
 707 }
 708
 709 void MyTreeCtrl::CreateImageList(int size)
 710 {
 711     if ( size == -1 )
 712     {
 713         SetImageList(NULL);
 714         return;
 715     }
 716     if ( size == 0 )
 717         size = m_imageSize;
 718     else
 719         m_imageSize = size;
 720
 721     // Make an image list containing small icons
 722     wxImageList *images = new wxImageList(size, size, true);
 723
 724     // should correspond to TreeCtrlIcon_xxx enum
 725     wxBusyCursor wait;
 726     wxIcon icons[5];
 727     icons[0] = wxIcon(icon1_xpm);
 728     icons[1] = wxIcon(icon2_xpm);
 729     icons[2] = wxIcon(icon3_xpm);
 730     icons[3] = wxIcon(icon4_xpm);
 731     icons[4] = wxIcon(icon5_xpm);
 732
 733     int sizeOrig = icons[0].GetWidth();
 734     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 735     {
 736         if ( size == sizeOrig )
 737         {
 738             images->Add(icons[i]);
 739         }
 740         else
 741         {
 742             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 743         }
 744     }
 745
 746     AssignImageList(images);
 747 }
 748
 749 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 750 void MyTreeCtrl::CreateButtonsImageList(int size)
 751 {
 752     if ( size == -1 )
 753     {
 754         SetButtonsImageList(NULL);
 755         return;
 756     }
 757
 758     // Make an image list containing small icons
 759     wxImageList *images = new wxImageList(size, size, true);
 760
 761     // should correspond to TreeCtrlIcon_xxx enum
 762     wxBusyCursor wait;
 763     wxIcon icons[4];
 764     icons[0] = wxIcon(icon3_xpm);   // closed
 765     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 766     icons[2] = wxIcon(icon5_xpm);   // open
 767     icons[3] = wxIcon(icon5_xpm);   // open, selected
 768
 769     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 770     {
 771         int sizeOrig = icons[i].GetWidth();
 772         if ( size == sizeOrig )
 773         {
 774             images->Add(icons[i]);
 775         }
 776         else
 777         {
 778             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 779         }
 780     }
 781
 782     AssignButtonsImageList(images);
 783 #else
 784 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 785 {
 786 #endif
 787 }
 788
 789 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 790                                const wxTreeItemId& item2)
 791 {
 792     if ( m_reverseSort )
 793     {
 794         // just exchange 1st and 2nd items
 795         return wxTreeCtrl::OnCompareItems(item2, item1);
 796     }
 797     else
 798     {
 799         return wxTreeCtrl::OnCompareItems(item1, item2);
 800     }
 801 }
 802
 803 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 804                                      size_t numChildren,
 805                                      size_t depth,
 806                                      size_t folder)
 807 {
 808     if ( depth > 0 )
 809     {
 810         bool hasChildren = depth > 1;
 811
 812         wxString str;
 813         for ( size_t n = 0; n < numChildren; n++ )
 814         {
 815             // at depth 1 elements won't have any more children
 816             if ( hasChildren )
 817                 str.Printf(wxT("%s child %u"), wxT("Folder"), unsigned(n + 1));
 818             else
 819                 str.Printf(wxT("%s child %u.%u"), wxT("File"), unsigned(folder), unsigned(n + 1));
 820
 821             // here we pass to AppendItem() normal and selected item images (we
 822             // suppose that selected image follows the normal one in the enum)
 823             int image, imageSel;
 824             if ( wxGetApp().ShowImages() )
 825             {
 826                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 827                 imageSel = image + 1;
 828             }
 829             else
 830             {
 831                 image = imageSel = -1;
 832             }
 833             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 834                                          new MyTreeItemData(str));
 835
 836             // and now we also set the expanded one (only for the folders)
 837             if ( hasChildren && wxGetApp().ShowImages() )
 838             {
 839                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 840                              wxTreeItemIcon_Expanded);
 841             }
 842
 843             // remember the last child for OnEnsureVisible()
 844             if ( !hasChildren && n == numChildren - 1 )
 845             {
 846                 m_lastItem = id;
 847             }
 848
 849             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 850         }
 851     }
 852     //else: done!
 853 }
 854
 855 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 856                                     size_t depth)
 857 {
 858     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 859     wxTreeItemId rootId = AddRoot(wxT("Root"),
 860                                   image, image,
 861                                   new MyTreeItemData(wxT("Root item")));
 862     if ( image != -1 )
 863     {
 864         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 865     }
 866
 867     AddItemsRecursively(rootId, numChildren, depth, 0);
 868
 869     // set some colours/fonts for testing
 870     SetItemFont(rootId, *wxITALIC_FONT);
 871
 872     wxTreeItemIdValue cookie;
 873     wxTreeItemId id = GetFirstChild(rootId, cookie);
 874     SetItemTextColour(id, *wxBLUE);
 875
 876     id = GetNextChild(rootId, cookie);
 877     id = GetNextChild(rootId, cookie);
 878     SetItemTextColour(id, *wxRED);
 879     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 880 }
 881
 882 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 883                                      wxTreeItemIdValue cookie)
 884 {
 885     wxTreeItemId id;
 886
 887     if ( !cookie )
 888         id = GetFirstChild(idParent, cookie);
 889     else
 890         id = GetNextChild(idParent, cookie);
 891
 892     if ( !id.IsOk() )
 893         return;
 894
 895     wxString text = GetItemText(id);
 896     wxLogMessage(text);
 897
 898     if (ItemHasChildren(id))
 899         GetItemsRecursively(id);
 900
 901     GetItemsRecursively(idParent, cookie);
 902 }
 903
 904 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 905 {
 906     int image = (GetItemImage(item) == TreeCtrlIcon_Folder)
 907                     ? TreeCtrlIcon_File
 908                     : TreeCtrlIcon_Folder;
 909     SetItemImage(item, image, wxTreeItemIcon_Normal);
 910
 911     image = (GetItemImage(item) == TreeCtrlIcon_FolderSelected)
 912                     ? TreeCtrlIcon_FileSelected
 913                     : TreeCtrlIcon_FolderSelected;
 914     SetItemImage(item, image, wxTreeItemIcon_Selected);
 915 }
 916
 917 void MyTreeCtrl::LogEvent(const wxChar *name, const wxTreeEvent& event)
 918 {
 919     wxTreeItemId item = event.GetItem();
 920     wxString text;
 921     if ( item.IsOk() )
 922         text << _T('"') << GetItemText(item).c_str() << _T('"');
 923     else
 924         text = _T("invalid item");
 925     wxLogMessage(wxT("%s(%s)"), name, text.c_str());
 926 }
 927
 928 // avoid repetition
 929 #define TREE_EVENT_HANDLER(name)                                 \
 930 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 931 {                                                                \
 932     LogEvent(_T(#name), event);                                  \
 933     SetLastItem(wxTreeItemId());                                 \
 934     event.Skip();                                                \
 935 }
 936
 937 TREE_EVENT_HANDLER(OnBeginRDrag)
 938 TREE_EVENT_HANDLER(OnDeleteItem)
 939 TREE_EVENT_HANDLER(OnGetInfo)
 940 TREE_EVENT_HANDLER(OnSetInfo)
 941 TREE_EVENT_HANDLER(OnItemExpanded)
 942 TREE_EVENT_HANDLER(OnItemExpanding)
 943 TREE_EVENT_HANDLER(OnItemCollapsed)
 944 TREE_EVENT_HANDLER(OnSelChanged)
 945 TREE_EVENT_HANDLER(OnSelChanging)
 946
 947 #undef TREE_EVENT_HANDLER
 948
 949 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 950 {
 951     wxString key;
 952     long keycode = event.GetKeyCode();
 953     {
 954         switch ( keycode )
 955         {
 956             case WXK_BACK: key = wxT("BACK"); break;
 957             case WXK_TAB: key = wxT("TAB"); break;
 958             case WXK_RETURN: key = wxT("RETURN"); break;
 959             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 960             case WXK_SPACE: key = wxT("SPACE"); break;
 961             case WXK_DELETE: key = wxT("DELETE"); break;
 962             case WXK_START: key = wxT("START"); break;
 963             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 964             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 965             case WXK_CANCEL: key = wxT("CANCEL"); break;
 966             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 967             case WXK_CLEAR: key = wxT("CLEAR"); break;
 968             case WXK_SHIFT: key = wxT("SHIFT"); break;
 969             case WXK_ALT: key = wxT("ALT"); break;
 970             case WXK_CONTROL: key = wxT("CONTROL"); break;
 971             case WXK_MENU: key = wxT("MENU"); break;
 972             case WXK_PAUSE: key = wxT("PAUSE"); break;
 973             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 974             case WXK_END: key = wxT("END"); break;
 975             case WXK_HOME: key = wxT("HOME"); break;
 976             case WXK_LEFT: key = wxT("LEFT"); break;
 977             case WXK_UP: key = wxT("UP"); break;
 978             case WXK_RIGHT: key = wxT("RIGHT"); break;
 979             case WXK_DOWN: key = wxT("DOWN"); break;
 980             case WXK_SELECT: key = wxT("SELECT"); break;
 981             case WXK_PRINT: key = wxT("PRINT"); break;
 982             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 983             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 984             case WXK_INSERT: key = wxT("INSERT"); break;
 985             case WXK_HELP: key = wxT("HELP"); break;
 986             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 987             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 988             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
 989             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
 990             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
 991             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
 992             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
 993             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
 994             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
 995             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
 996             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
 997             case WXK_ADD: key = wxT("ADD"); break;
 998             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
 999             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
1000             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
1001             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
1002             case WXK_F1: key = wxT("F1"); break;
1003             case WXK_F2: key = wxT("F2"); break;
1004             case WXK_F3: key = wxT("F3"); break;
1005             case WXK_F4: key = wxT("F4"); break;
1006             case WXK_F5: key = wxT("F5"); break;
1007             case WXK_F6: key = wxT("F6"); break;
1008             case WXK_F7: key = wxT("F7"); break;
1009             case WXK_F8: key = wxT("F8"); break;
1010             case WXK_F9: key = wxT("F9"); break;
1011             case WXK_F10: key = wxT("F10"); break;
1012             case WXK_F11: key = wxT("F11"); break;
1013             case WXK_F12: key = wxT("F12"); break;
1014             case WXK_F13: key = wxT("F13"); break;
1015             case WXK_F14: key = wxT("F14"); break;
1016             case WXK_F15: key = wxT("F15"); break;
1017             case WXK_F16: key = wxT("F16"); break;
1018             case WXK_F17: key = wxT("F17"); break;
1019             case WXK_F18: key = wxT("F18"); break;
1020             case WXK_F19: key = wxT("F19"); break;
1021             case WXK_F20: key = wxT("F20"); break;
1022             case WXK_F21: key = wxT("F21"); break;
1023             case WXK_F22: key = wxT("F22"); break;
1024             case WXK_F23: key = wxT("F23"); break;
1025             case WXK_F24: key = wxT("F24"); break;
1026             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
1027             case WXK_SCROLL: key = wxT("SCROLL"); break;
1028             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
1029             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
1030             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
1031             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
1032             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
1033             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
1034             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1035             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1036             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1037             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1038             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1039             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1040             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1041             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1042             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1043             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1044             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1045             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1046             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1047             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1048             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1049             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1050             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1051             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1052             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1053             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1054
1055             default:
1056             {
1057                if ( keycode < 128 && wxIsprint((int)keycode) )
1058                    key.Printf(wxT("'%c'"), (char)keycode);
1059                else if ( keycode > 0 && keycode < 27 )
1060                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1061                else
1062                    key.Printf(wxT("unknown (%ld)"), keycode);
1063             }
1064         }
1065     }
1066
1067     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1068                   name,
1069                   key.c_str(),
1070                   event.ControlDown() ? wxT('C') : wxT('-'),
1071                   event.AltDown() ? wxT('A') : wxT('-'),
1072                   event.ShiftDown() ? wxT('S') : wxT('-'),
1073                   event.MetaDown() ? wxT('M') : wxT('-'));
1074 }
1075
1076 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1077 {
1078     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1079
1080     event.Skip();
1081 }
1082
1083 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1084 {
1085     // need to explicitly allow drag
1086     if ( event.GetItem() != GetRootItem() )
1087     {
1088         m_draggedItem = event.GetItem();
1089
1090         wxPoint clientpt = event.GetPoint();
1091         wxPoint screenpt = ClientToScreen(clientpt);
1092
1093         wxLogMessage(wxT("OnBeginDrag: started dragging %s at screen coords (%i,%i)"),
1094                      GetItemText(m_draggedItem).c_str(),
1095                      screenpt.x, screenpt.y);
1096
1097         event.Allow();
1098     }
1099     else
1100     {
1101         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1102     }
1103 }
1104
1105 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1106 {
1107     wxTreeItemId itemSrc = m_draggedItem,
1108                  itemDst = event.GetItem();
1109     m_draggedItem = (wxTreeItemId)0l;
1110
1111     // where to copy the item?
1112     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1113     {
1114         // copy to the parent then
1115         itemDst = GetItemParent(itemDst);
1116     }
1117
1118     if ( !itemDst.IsOk() )
1119     {
1120         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1121
1122         return;
1123     }
1124
1125     wxString text = GetItemText(itemSrc);
1126     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1127                  text.c_str(), GetItemText(itemDst).c_str());
1128
1129     // just do append here - we could also insert it just before/after the item
1130     // on which it was dropped, but this requires slightly more work... we also
1131     // completely ignore the client data and icon of the old item but could
1132     // copy them as well.
1133     //
1134     // Finally, we only copy one item here but we might copy the entire tree if
1135     // we were dragging a folder.
1136     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1137     AppendItem(itemDst, text, image);
1138 }
1139
1140 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1141 {
1142     wxLogMessage(wxT("OnBeginLabelEdit"));
1143
1144     // for testing, prevent this item's label editing
1145     wxTreeItemId itemId = event.GetItem();
1146     if ( IsTestItem(itemId) )
1147     {
1148         wxMessageBox(wxT("You can't edit this item."));
1149
1150         event.Veto();
1151     }
1152     else if ( itemId == GetRootItem() )
1153     {
1154         // test that it is possible to change the text of the item being edited
1155         SetItemText(itemId, _T("Editing root item"));
1156     }
1157 }
1158
1159 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1160 {
1161     wxLogMessage(wxT("OnEndLabelEdit"));
1162
1163     // don't allow anything except letters in the labels
1164     if ( !event.GetLabel().IsWord() )
1165     {
1166         wxMessageBox(wxT("The new label should be a single word."));
1167
1168         event.Veto();
1169     }
1170 }
1171
1172 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1173 {
1174     wxLogMessage(wxT("OnItemCollapsing"));
1175
1176     // for testing, prevent the user from collapsing the first child folder
1177     wxTreeItemId itemId = event.GetItem();
1178     if ( IsTestItem(itemId) )
1179     {
1180         wxMessageBox(wxT("You can't collapse this item."));
1181
1182         event.Veto();
1183     }
1184 }
1185
1186 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1187 {
1188     // show some info about this item
1189     wxTreeItemId itemId = event.GetItem();
1190     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1191
1192     if ( item != NULL )
1193     {
1194         item->ShowInfo(this);
1195     }
1196
1197     wxLogMessage(wxT("OnItemActivated"));
1198 }
1199
1200 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1201 {
1202     wxTreeItemId itemId = event.GetItem();
1203     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1204                                          : NULL;
1205     wxPoint clientpt = event.GetPoint();
1206     wxPoint screenpt = ClientToScreen(clientpt);
1207
1208     wxLogMessage(wxT("OnItemMenu for item \"%s\" at screen coords (%i, %i)"),
1209                  item ? item->GetDesc() : _T(""), screenpt.x, screenpt.y);
1210
1211     ShowMenu(itemId, clientpt);
1212     event.Skip();
1213 }
1214
1215 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1216 {
1217     wxPoint pt = event.GetPosition();
1218
1219     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1220 }
1221
1222 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1223 {
1224     wxString title;
1225     if ( id.IsOk() )
1226     {
1227         title << wxT("Menu for ") << GetItemText(id);
1228     }
1229     else
1230     {
1231         title = wxT("Menu for no particular item");
1232     }
1233
1234 #if wxUSE_MENUS
1235     wxMenu menu(title);
1236     menu.Append(TreeTest_About, wxT("&About..."));
1237     menu.AppendSeparator();
1238     menu.Append(TreeTest_Highlight, wxT("&Highlight item"));
1239     menu.Append(TreeTest_Dump, wxT("&Dump"));
1240
1241     PopupMenu(&menu, pt);
1242 #endif // wxUSE_MENUS
1243 }
1244
1245 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1246 {
1247     wxTreeItemId itemId = event.GetItem();
1248     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1249                                          : NULL;
1250
1251     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1252                                                         : _T(""));
1253
1254     event.Skip();
1255 }
1256
1257 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1258 {
1259     wxLogMessage(wxT("Right mouse button down"));
1260
1261     event.Skip();
1262 }
1263
1264 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1265 {
1266     wxLogMessage(wxT("Right mouse button up"));
1267
1268     event.Skip();
1269 }
1270
1271 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1272 {
1273     wxTreeItemId id = HitTest(event.GetPosition());
1274     if ( !id )
1275         wxLogMessage(wxT("No item under mouse"));
1276     else
1277     {
1278         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1279         if ( item )
1280             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1281     }
1282
1283     event.Skip();
1284 }
1285
1286 static inline const wxChar *Bool2String(bool b)
1287 {
1288     return b ? wxT("") : wxT("not ");
1289 }
1290
1291 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1292 {
1293     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1294                  wxT("%u children (%u immediately under this item)."),
1295                  m_desc.c_str(),
1296                  Bool2String(tree->IsSelected(GetId())),
1297                  Bool2String(tree->IsExpanded(GetId())),
1298                  Bool2String(tree->IsBold(GetId())),
1299                  unsigned(tree->GetChildrenCount(GetId())),
1300                  unsigned(tree->GetChildrenCount(GetId(), false)));
1301 }