samples/treectrl/treetest.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        treetest.cpp
   3 // Purpose:     wxTreeCtrl sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13   #pragma implementation
  14   #pragma interface
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx/wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21   #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25   #include "wx/wx.h"
  26   #include "wx/log.h"
  27 #endif
  28
  29 #include "wx/colordlg.h"
  30 #include "wx/numdlg.h"
  31
  32 #include "wx/image.h"
  33 #include "wx/imaglist.h"
  34 #include "wx/treectrl.h"
  35 #include "wx/math.h"
  36
  37 #ifdef __WIN32__
  38     // this is not supported by native control
  39     #define NO_VARIABLE_HEIGHT
  40 #endif
  41
  42 #include "treetest.h"
  43
  44 #include "icon1.xpm"
  45 #include "icon2.xpm"
  46 #include "icon3.xpm"
  47 #include "icon4.xpm"
  48 #include "icon5.xpm"
  49
  50 #if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__)
  51 #include "mondrian.xpm"
  52 #endif
  53
  54
  55 // verify that the item is ok and insult the user if it is not
  56 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  57                              wxMessageBox(wxT("Please select some item first!"), \
  58                                           wxT("Tree sample error"),              \
  59                                           wxOK | wxICON_EXCLAMATION,             \
  60                                           this);                                 \
  61                              return;                                             \
  62                            }
  63
  64 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  65
  66 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  67     EVT_IDLE(MyFrame::OnIdle)
  68     EVT_SIZE(MyFrame::OnSize)
  69
  70     MENU_LINK(Quit)
  71     MENU_LINK(About)
  72
  73     MENU_LINK(TogButtons)
  74     MENU_LINK(TogTwist)
  75     MENU_LINK(TogLines)
  76     MENU_LINK(TogEdit)
  77     MENU_LINK(TogHideRoot)
  78     MENU_LINK(TogRootLines)
  79     MENU_LINK(TogBorder)
  80     MENU_LINK(TogFullHighlight)
  81     MENU_LINK(SetFgColour)
  82     MENU_LINK(SetBgColour)
  83     MENU_LINK(ResetStyle)
  84
  85     MENU_LINK(Dump)
  86 #ifndef NO_MULTIPLE_SELECTION
  87     MENU_LINK(DumpSelected)
  88     MENU_LINK(Select)
  89     MENU_LINK(Unselect)
  90     MENU_LINK(ToggleSel)
  91 #endif // NO_MULTIPLE_SELECTION
  92     MENU_LINK(Rename)
  93     MENU_LINK(Count)
  94     MENU_LINK(CountRec)
  95     MENU_LINK(Sort)
  96     MENU_LINK(SortRev)
  97     MENU_LINK(SetBold)
  98     MENU_LINK(ClearBold)
  99     MENU_LINK(Delete)
 100     MENU_LINK(DeleteChildren)
 101     MENU_LINK(DeleteAll)
 102     MENU_LINK(Recreate)
 103     MENU_LINK(ToggleImages)
 104     MENU_LINK(ToggleButtons)
 105     MENU_LINK(SetImageSize)
 106     MENU_LINK(CollapseAndReset)
 107     MENU_LINK(EnsureVisible)
 108     MENU_LINK(AddItem)
 109     MENU_LINK(InsertItem)
 110     MENU_LINK(IncIndent)
 111     MENU_LINK(DecIndent)
 112     MENU_LINK(IncSpacing)
 113     MENU_LINK(DecSpacing)
 114     MENU_LINK(ToggleIcon)
 115     MENU_LINK(SelectRoot)
 116 #undef MENU_LINK
 117
 118 END_EVENT_TABLE()
 119
 120 #if USE_GENERIC_TREECTRL
 121 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 122 #else
 123 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 124 #endif
 125     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 126     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 127     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 128     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 129     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 130     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 131 #if 0       // there are so many of those that logging them causes flicker
 132     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 133 #endif
 134     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 135     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 136     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 137     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 138     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 139
 140     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 141     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 142     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 143     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 144
 145     // so many differents ways to handle right mouse button clicks...
 146     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 147     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 148     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 149
 150     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 151     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 152     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 153 END_EVENT_TABLE()
 154
 155 IMPLEMENT_APP(MyApp)
 156
 157 bool MyApp::OnInit()
 158 {
 159     // Create the main frame window
 160     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 161
 162     // Show the frame
 163     frame->Show(true);
 164     SetTopWindow(frame);
 165
 166     return true;
 167 }
 168
 169
 170 // My frame constructor
 171 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 172        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 173          m_treeCtrl(NULL)
 174 #if wxUSE_LOG
 175          , m_textCtrl(NULL)
 176 #endif // wxUSE_LOG
 177 {
 178     // This reduces flicker effects - even better would be to define
 179     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 180     // show or hidden, the frame is sent a background erase event.
 181     SetBackgroundColour(wxColour(255, 255, 255));
 182
 183     // Give it an icon
 184     SetIcon(wxICON(mondrian));
 185
 186 #if wxUSE_MENUS
 187     // Make a menubar
 188     wxMenu *file_menu = new wxMenu,
 189            *style_menu = new wxMenu,
 190            *tree_menu = new wxMenu,
 191            *item_menu = new wxMenu;
 192
 193     file_menu->Append(TreeTest_About, wxT("&About..."));
 194     file_menu->AppendSeparator();
 195     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 196
 197     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 198     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 199     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 200     style_menu->AppendSeparator();
 201     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 202     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 203     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 204     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 205     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 206     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 207 #ifndef NO_MULTIPLE_SELECTION
 208     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
 209 #endif // NO_MULTIPLE_SELECTION
 210     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 211     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 212     style_menu->AppendSeparator();
 213     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 214     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 215     style_menu->AppendSeparator();
 216     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 217
 218     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 219     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 220     tree_menu->AppendSeparator();
 221     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 222     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 223     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 224     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 225     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 226     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 227     tree_menu->AppendSeparator();
 228     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 229     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 230     tree_menu->AppendSeparator();
 231     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 232     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 233     tree_menu->AppendSeparator();
 234     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 235     tree_menu->AppendSeparator();
 236     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 237     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 238     tree_menu->AppendSeparator();
 239     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 240     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 241
 242     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 243     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 244
 245     item_menu->AppendSeparator();
 246     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 247     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 248     item_menu->AppendSeparator();
 249     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 250
 251 #ifndef NO_MULTIPLE_SELECTION
 252     item_menu->AppendSeparator();
 253     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 254     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 255     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 256 #endif // NO_MULTIPLE_SELECTION
 257
 258     wxMenuBar *menu_bar = new wxMenuBar;
 259     menu_bar->Append(file_menu, wxT("&File"));
 260     menu_bar->Append(style_menu, wxT("&Style"));
 261     menu_bar->Append(tree_menu, wxT("&Tree"));
 262     menu_bar->Append(item_menu, wxT("&Item"));
 263     SetMenuBar(menu_bar);
 264 #endif // wxUSE_MENUS
 265
 266 #if wxUSE_LOG
 267     // create the controls
 268     m_textCtrl = new wxTextCtrl(this, wxID_ANY, wxT(""),
 269                                 wxDefaultPosition, wxDefaultSize,
 270                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 271 #endif // wxUSE_LOG
 272
 273     CreateTreeWithDefStyle();
 274
 275     menu_bar->Check(TreeTest_ToggleImages, true);
 276
 277 #if wxUSE_STATUSBAR
 278     // create a status bar
 279     CreateStatusBar(2);
 280 #endif // wxUSE_STATUSBAR
 281
 282 #if wxUSE_LOG
 283 #ifdef __WXMOTIF__
 284     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 285     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 286     delete wxLog::SetActiveTarget(new wxLogStderr);
 287 #else
 288     // set our text control as the log target
 289     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 290     delete wxLog::SetActiveTarget(logWindow);
 291 #endif
 292 #endif // wxUSE_LOG
 293 }
 294
 295 MyFrame::~MyFrame()
 296 {
 297 #if wxUSE_LOG
 298     delete wxLog::SetActiveTarget(NULL);
 299 #endif // wxUSE_LOG
 300 }
 301
 302 void MyFrame::CreateTreeWithDefStyle()
 303 {
 304     long style = wxTR_DEFAULT_STYLE |
 305 #ifndef NO_VARIABLE_HEIGHT
 306                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 307 #endif
 308                  wxTR_EDIT_LABELS;
 309
 310     CreateTree(style | wxSUNKEN_BORDER);
 311
 312     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 313     // everything
 314     wxMenuBar *mbar = GetMenuBar();
 315     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 316     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 317     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 318     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 319     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 320     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 321     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 322     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 323 }
 324
 325 void MyFrame::CreateTree(long style)
 326 {
 327     m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
 328                                 wxDefaultPosition, wxDefaultSize,
 329                                 style);
 330     Resize();
 331 }
 332
 333 void MyFrame::TogStyle(int id, long flag)
 334 {
 335     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 336
 337     // most treectrl styles can't be changed on the fly using the native
 338     // control and the tree must be recreated
 339 #ifndef __WXMSW__
 340     m_treeCtrl->SetWindowStyle(style);
 341 #else // MSW
 342     delete m_treeCtrl;
 343     CreateTree(style);
 344 #endif // !MSW/MSW
 345
 346     GetMenuBar()->Check(id, (style & flag) != 0);
 347 }
 348
 349 void MyFrame::OnIdle(wxIdleEvent& event)
 350 {
 351 #if wxUSE_STATUSBAR
 352     if ( m_treeCtrl )
 353     {
 354         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 355
 356         SetStatusText(wxString::Format
 357                       (
 358                         _T("Root/last item is %svisible/%svisible"),
 359                         m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 360                         m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
 361                             ? _T("") : _T("not ")
 362                       ), 1);
 363     }
 364 #endif // wxUSE_STATUSBAR
 365
 366     event.Skip();
 367 }
 368
 369 void MyFrame::OnSize(wxSizeEvent& event)
 370 {
 371     if ( m_treeCtrl
 372 #if wxUSE_LOG
 373                     && m_textCtrl
 374 #endif // wxUSE_LOG
 375                                   )
 376     {
 377         Resize();
 378     }
 379
 380     event.Skip();
 381 }
 382
 383 void MyFrame::Resize()
 384 {
 385     wxSize size = GetClientSize();
 386     m_treeCtrl->SetSize(0, 0, size.x, size.y
 387 #if !wxUSE_LOG
 388                                             );
 389 #else
 390                                             *2/3);
 391     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
 392 #endif
 393 }
 394
 395 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 396 {
 397     Close(true);
 398 }
 399
 400 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 401 {
 402     wxMessageBox(wxT("Tree test sample\n")
 403                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 404                  wxT("About tree test"),
 405                  wxOK | wxICON_INFORMATION, this);
 406 }
 407
 408 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 409 {
 410     wxTreeItemId item = m_treeCtrl->GetSelection();
 411
 412     CHECK_ITEM( item );
 413
 414     // old code - now we edit in place
 415 #if 0
 416     static wxString s_text;
 417     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 418             s_text, this);
 419     if ( !s_text.empty() )
 420     {
 421         m_treeCtrl->SetItemText(item, s_text);
 422     }
 423 #endif // 0
 424
 425     // TODO demonstrate creating a custom edit control...
 426     (void)m_treeCtrl->EditLabel(item);
 427 }
 428
 429 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 430 {
 431     wxTreeItemId item = m_treeCtrl->GetSelection();
 432
 433     CHECK_ITEM( item );
 434
 435     int i = m_treeCtrl->GetChildrenCount( item, false );
 436
 437     wxLogMessage(wxT("%d children"), i);
 438 }
 439
 440 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 441 {
 442     wxTreeItemId item = m_treeCtrl->GetSelection();
 443
 444     CHECK_ITEM( item );
 445
 446     int i = m_treeCtrl->GetChildrenCount( item );
 447
 448     wxLogMessage(wxT("%d children"), i);
 449 }
 450
 451 void MyFrame::DoSort(bool reverse)
 452 {
 453     wxTreeItemId item = m_treeCtrl->GetSelection();
 454
 455     CHECK_ITEM( item );
 456
 457     m_treeCtrl->DoSortChildren(item, reverse);
 458 }
 459
 460 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 461 {
 462     wxTreeItemId root = m_treeCtrl->GetSelection();
 463
 464     CHECK_ITEM( root );
 465
 466     m_treeCtrl->GetItemsRecursively(root);
 467 }
 468
 469 #ifndef NO_MULTIPLE_SELECTION
 470
 471 void MyFrame::OnToggleSel(wxCommandEvent& event)
 472 {
 473     TogStyle(event.GetId(), wxTR_MULTIPLE);
 474 }
 475
 476 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 477 {
 478     wxArrayTreeItemIds array;
 479
 480     size_t count = m_treeCtrl->GetSelections(array);
 481     wxLogMessage(wxT("%u items selected"), count);
 482
 483     for ( size_t n = 0; n < count; n++ )
 484     {
 485         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 486     }
 487 }
 488
 489 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 490 {
 491     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 492 }
 493
 494 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 495 {
 496     m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 497 }
 498
 499 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 500 {
 501     m_treeCtrl->UnselectAll();
 502 }
 503
 504 #endif // NO_MULTIPLE_SELECTION
 505
 506 void MyFrame::DoSetBold(bool bold)
 507 {
 508     wxTreeItemId item = m_treeCtrl->GetSelection();
 509
 510     CHECK_ITEM( item );
 511
 512     m_treeCtrl->SetItemBold(item, bold);
 513 }
 514
 515 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 516 {
 517     wxTreeItemId item = m_treeCtrl->GetSelection();
 518
 519     CHECK_ITEM( item );
 520
 521     m_treeCtrl->Delete(item);
 522 }
 523
 524 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 525 {
 526     wxTreeItemId item = m_treeCtrl->GetSelection();
 527
 528     CHECK_ITEM( item );
 529
 530     m_treeCtrl->DeleteChildren(item);
 531 }
 532
 533 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 534 {
 535     m_treeCtrl->DeleteAllItems();
 536 }
 537
 538 void MyFrame::OnRecreate(wxCommandEvent& event)
 539 {
 540     OnDeleteAll(event);
 541     m_treeCtrl->AddTestItemsToTree(5, 2);
 542 }
 543
 544 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 545 {
 546     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 547                                     wxT("Size: "),
 548                                     wxT("TreeCtrl sample"),
 549                                     m_treeCtrl->ImageSize());
 550     if ( size == -1 )
 551         return;
 552
 553     m_treeCtrl->CreateImageList(size);
 554     wxGetApp().SetShowImages(true);
 555 }
 556
 557 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 558 {
 559     if ( wxGetApp().ShowImages() )
 560     {
 561         m_treeCtrl->CreateImageList(-1);
 562         wxGetApp().SetShowImages(false);
 563     }
 564     else
 565     {
 566         m_treeCtrl->CreateImageList(0);
 567         wxGetApp().SetShowImages(true);
 568     }
 569 }
 570
 571 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 572 {
 573 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 574     if ( wxGetApp().ShowButtons() )
 575     {
 576         m_treeCtrl->CreateButtonsImageList(-1);
 577         wxGetApp().SetShowButtons(false);
 578     }
 579     else
 580     {
 581         m_treeCtrl->CreateButtonsImageList(15);
 582         wxGetApp().SetShowButtons(true);
 583     }
 584 #endif
 585 }
 586
 587 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 588 {
 589     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 590 }
 591
 592 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 593 {
 594     m_treeCtrl->DoEnsureVisible();
 595 }
 596
 597 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 598 {
 599     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 600     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 601 }
 602
 603 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 604 {
 605     static int s_num = 0;
 606
 607     wxString text;
 608     text.Printf(wxT("Item #%d"), ++s_num);
 609
 610     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 611                            text /*,
 612                            MyTreeCtrl::TreeCtrlIcon_File */ );
 613 }
 614
 615 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 616 {
 617     unsigned int indent = m_treeCtrl->GetIndent();
 618     if (indent < 100)
 619         m_treeCtrl->SetIndent( indent+5 );
 620 }
 621
 622 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 623 {
 624     unsigned int indent = m_treeCtrl->GetIndent();
 625     if (indent > 10)
 626         m_treeCtrl->SetIndent( indent-5 );
 627 }
 628
 629 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 630 {
 631     unsigned int indent = m_treeCtrl->GetSpacing();
 632     if (indent < 100)
 633         m_treeCtrl->SetSpacing( indent+5 );
 634 }
 635
 636 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 637 {
 638     unsigned int indent = m_treeCtrl->GetSpacing();
 639     if (indent > 10)
 640         m_treeCtrl->SetSpacing( indent-5 );
 641 }
 642
 643 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 644 {
 645     wxTreeItemId item = m_treeCtrl->GetSelection();
 646
 647     CHECK_ITEM( item );
 648
 649     m_treeCtrl->DoToggleIcon(item);
 650 }
 651
 652 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 653 {
 654     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 655     if ( col.Ok() )
 656         m_treeCtrl->SetForegroundColour(col);
 657 }
 658
 659 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 660 {
 661     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 662     if ( col.Ok() )
 663         m_treeCtrl->SetBackgroundColour(col);
 664 }
 665
 666 // MyTreeCtrl implementation
 667 #if USE_GENERIC_TREECTRL
 668 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 669 #else
 670 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 671 #endif
 672
 673 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 674                        const wxPoint& pos, const wxSize& size,
 675                        long style)
 676           : wxTreeCtrl(parent, id, pos, size, style)
 677 {
 678     m_reverseSort = false;
 679
 680     CreateImageList();
 681
 682     // Add some items to the tree
 683     AddTestItemsToTree(5, 2);
 684 }
 685
 686 void MyTreeCtrl::CreateImageList(int size)
 687 {
 688     if ( size == -1 )
 689     {
 690         SetImageList(NULL);
 691         return;
 692     }
 693     if ( size == 0 )
 694         size = m_imageSize;
 695     else
 696         m_imageSize = size;
 697
 698     // Make an image list containing small icons
 699     wxImageList *images = new wxImageList(size, size, true);
 700
 701     // should correspond to TreeCtrlIcon_xxx enum
 702     wxBusyCursor wait;
 703     wxIcon icons[5];
 704     icons[0] = wxIcon(icon1_xpm);
 705     icons[1] = wxIcon(icon2_xpm);
 706     icons[2] = wxIcon(icon3_xpm);
 707     icons[3] = wxIcon(icon4_xpm);
 708     icons[4] = wxIcon(icon5_xpm);
 709
 710     int sizeOrig = icons[0].GetWidth();
 711     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 712     {
 713         if ( size == sizeOrig )
 714         {
 715             images->Add(icons[i]);
 716         }
 717         else
 718         {
 719             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 720         }
 721     }
 722
 723     AssignImageList(images);
 724 }
 725
 726 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 727 void MyTreeCtrl::CreateButtonsImageList(int size)
 728 {
 729     if ( size == -1 )
 730     {
 731         SetButtonsImageList(NULL);
 732         return;
 733     }
 734
 735     // Make an image list containing small icons
 736     wxImageList *images = new wxImageList(size, size, true);
 737
 738     // should correspond to TreeCtrlIcon_xxx enum
 739     wxBusyCursor wait;
 740     wxIcon icons[4];
 741     icons[0] = wxIcon(icon3_xpm);   // closed
 742     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 743     icons[2] = wxIcon(icon5_xpm);   // open
 744     icons[3] = wxIcon(icon5_xpm);   // open, selected
 745
 746     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 747     {
 748         int sizeOrig = icons[i].GetWidth();
 749         if ( size == sizeOrig )
 750         {
 751             images->Add(icons[i]);
 752         }
 753         else
 754         {
 755             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 756         }
 757     }
 758
 759     AssignButtonsImageList(images);
 760 #else
 761 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 762 {
 763 #endif
 764 }
 765
 766 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 767                                const wxTreeItemId& item2)
 768 {
 769     if ( m_reverseSort )
 770     {
 771         // just exchange 1st and 2nd items
 772         return wxTreeCtrl::OnCompareItems(item2, item1);
 773     }
 774     else
 775     {
 776         return wxTreeCtrl::OnCompareItems(item1, item2);
 777     }
 778 }
 779
 780 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 781                                      size_t numChildren,
 782                                      size_t depth,
 783                                      size_t folder)
 784 {
 785     if ( depth > 0 )
 786     {
 787         bool hasChildren = depth > 1;
 788
 789         wxString str;
 790         for ( size_t n = 0; n < numChildren; n++ )
 791         {
 792             // at depth 1 elements won't have any more children
 793             if ( hasChildren )
 794                 str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
 795             else
 796                 str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
 797
 798             // here we pass to AppendItem() normal and selected item images (we
 799             // suppose that selected image follows the normal one in the enum)
 800             int image, imageSel;
 801             if ( wxGetApp().ShowImages() )
 802             {
 803                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 804                 imageSel = image + 1;
 805             }
 806             else
 807             {
 808                 image = imageSel = -1;
 809             }
 810             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 811                                          new MyTreeItemData(str));
 812
 813             // and now we also set the expanded one (only for the folders)
 814             if ( hasChildren && wxGetApp().ShowImages() )
 815             {
 816                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 817                              wxTreeItemIcon_Expanded);
 818             }
 819
 820             // remember the last child for OnEnsureVisible()
 821             if ( !hasChildren && n == numChildren - 1 )
 822             {
 823                 m_lastItem = id;
 824             }
 825
 826             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 827         }
 828     }
 829     //else: done!
 830 }
 831
 832 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 833                                     size_t depth)
 834 {
 835     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 836     wxTreeItemId rootId = AddRoot(wxT("Root"),
 837                                   image, image,
 838                                   new MyTreeItemData(wxT("Root item")));
 839     if ( image != -1 )
 840     {
 841         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 842     }
 843
 844     AddItemsRecursively(rootId, numChildren, depth, 0);
 845
 846     // set some colours/fonts for testing
 847     SetItemFont(rootId, *wxITALIC_FONT);
 848
 849     wxTreeItemIdValue cookie;
 850     wxTreeItemId id = GetFirstChild(rootId, cookie);
 851     SetItemTextColour(id, *wxBLUE);
 852
 853     id = GetNextChild(rootId, cookie);
 854     id = GetNextChild(rootId, cookie);
 855     SetItemTextColour(id, *wxRED);
 856     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 857 }
 858
 859 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 860                                      wxTreeItemIdValue cookie)
 861 {
 862     wxTreeItemId id;
 863
 864     if ( !cookie )
 865         id = GetFirstChild(idParent, cookie);
 866     else
 867         id = GetNextChild(idParent, cookie);
 868
 869     if ( !id.IsOk() )
 870         return;
 871
 872     wxString text = GetItemText(id);
 873     wxLogMessage(text);
 874
 875     if (ItemHasChildren(id))
 876         GetItemsRecursively(id);
 877
 878     GetItemsRecursively(idParent, cookie);
 879 }
 880
 881 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 882 {
 883     int image = GetItemImage(item) == TreeCtrlIcon_Folder ? TreeCtrlIcon_File
 884                                                           : TreeCtrlIcon_Folder;
 885
 886     SetItemImage(item, image);
 887 }
 888
 889
 890 // avoid repetition
 891 #define TREE_EVENT_HANDLER(name)                                 \
 892 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 893 {                                                                \
 894     wxLogMessage(wxT(#name));                                    \
 895     SetLastItem(wxTreeItemId());                                 \
 896     event.Skip();                                                \
 897 }
 898
 899 TREE_EVENT_HANDLER(OnBeginRDrag)
 900 TREE_EVENT_HANDLER(OnDeleteItem)
 901 TREE_EVENT_HANDLER(OnGetInfo)
 902 TREE_EVENT_HANDLER(OnSetInfo)
 903 TREE_EVENT_HANDLER(OnItemExpanded)
 904 TREE_EVENT_HANDLER(OnItemExpanding)
 905 TREE_EVENT_HANDLER(OnItemCollapsed)
 906 TREE_EVENT_HANDLER(OnSelChanged)
 907 TREE_EVENT_HANDLER(OnSelChanging)
 908
 909 #undef TREE_EVENT_HANDLER
 910
 911 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 912 {
 913     wxString key;
 914     long keycode = event.GetKeyCode();
 915     {
 916         switch ( keycode )
 917         {
 918             case WXK_BACK: key = wxT("BACK"); break;
 919             case WXK_TAB: key = wxT("TAB"); break;
 920             case WXK_RETURN: key = wxT("RETURN"); break;
 921             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 922             case WXK_SPACE: key = wxT("SPACE"); break;
 923             case WXK_DELETE: key = wxT("DELETE"); break;
 924             case WXK_START: key = wxT("START"); break;
 925             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 926             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 927             case WXK_CANCEL: key = wxT("CANCEL"); break;
 928             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 929             case WXK_CLEAR: key = wxT("CLEAR"); break;
 930             case WXK_SHIFT: key = wxT("SHIFT"); break;
 931             case WXK_ALT: key = wxT("ALT"); break;
 932             case WXK_CONTROL: key = wxT("CONTROL"); break;
 933             case WXK_MENU: key = wxT("MENU"); break;
 934             case WXK_PAUSE: key = wxT("PAUSE"); break;
 935             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 936             case WXK_PRIOR: key = wxT("PRIOR"); break;
 937             case WXK_NEXT: key = wxT("NEXT"); 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_PRIOR: key = wxT("NUMPAD_PRIOR"); break;
1007             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1008             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1009             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1010             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1011             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1012             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1013             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1014             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1015             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1016             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1017             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1018             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1019
1020             default:
1021             {
1022                if ( keycode < 128 && wxIsprint((int)keycode) )
1023                    key.Printf(wxT("'%c'"), (char)keycode);
1024                else if ( keycode > 0 && keycode < 27 )
1025                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1026                else
1027                    key.Printf(wxT("unknown (%ld)"), keycode);
1028             }
1029         }
1030     }
1031
1032     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1033                   name,
1034                   key.c_str(),
1035                   event.ControlDown() ? wxT('C') : wxT('-'),
1036                   event.AltDown() ? wxT('A') : wxT('-'),
1037                   event.ShiftDown() ? wxT('S') : wxT('-'),
1038                   event.MetaDown() ? wxT('M') : wxT('-'));
1039 }
1040
1041 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1042 {
1043     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1044
1045     event.Skip();
1046 }
1047
1048 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1049 {
1050     // need to explicitly allow drag
1051     if ( event.GetItem() != GetRootItem() )
1052     {
1053         m_draggedItem = event.GetItem();
1054
1055         wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
1056                      GetItemText(m_draggedItem).c_str());
1057
1058         event.Allow();
1059     }
1060     else
1061     {
1062         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1063     }
1064 }
1065
1066 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1067 {
1068     wxTreeItemId itemSrc = m_draggedItem,
1069                  itemDst = event.GetItem();
1070     m_draggedItem = (wxTreeItemId)0l;
1071
1072     // where to copy the item?
1073     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1074     {
1075         // copy to the parent then
1076         itemDst = GetItemParent(itemDst);
1077     }
1078
1079     if ( !itemDst.IsOk() )
1080     {
1081         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1082
1083         return;
1084     }
1085
1086     wxString text = GetItemText(itemSrc);
1087     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1088                  text.c_str(), GetItemText(itemDst).c_str());
1089
1090     // just do append here - we could also insert it just before/after the item
1091     // on which it was dropped, but this requires slightly more work... we also
1092     // completely ignore the client data and icon of the old item but could
1093     // copy them as well.
1094     //
1095     // Finally, we only copy one item here but we might copy the entire tree if
1096     // we were dragging a folder.
1097     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1098     AppendItem(itemDst, text, image);
1099 }
1100
1101 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1102 {
1103     wxLogMessage(wxT("OnBeginLabelEdit"));
1104
1105     // for testing, prevent this item's label editing
1106     wxTreeItemId itemId = event.GetItem();
1107     if ( IsTestItem(itemId) )
1108     {
1109         wxMessageBox(wxT("You can't edit this item."));
1110
1111         event.Veto();
1112     }
1113     else if ( itemId == GetRootItem() )
1114     {
1115         // test that it is possible to change the text of the item being edited
1116         SetItemText(itemId, _T("Editing root item"));
1117     }
1118 }
1119
1120 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1121 {
1122     wxLogMessage(wxT("OnEndLabelEdit"));
1123
1124     // don't allow anything except letters in the labels
1125     if ( !event.GetLabel().IsWord() )
1126     {
1127         wxMessageBox(wxT("The new label should be a single word."));
1128
1129         event.Veto();
1130     }
1131 }
1132
1133 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1134 {
1135     wxLogMessage(wxT("OnItemCollapsing"));
1136
1137     // for testing, prevent the user from collapsing the first child folder
1138     wxTreeItemId itemId = event.GetItem();
1139     if ( IsTestItem(itemId) )
1140     {
1141         wxMessageBox(wxT("You can't collapse this item."));
1142
1143         event.Veto();
1144     }
1145 }
1146
1147 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1148 {
1149     // show some info about this item
1150     wxTreeItemId itemId = event.GetItem();
1151     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1152
1153     if ( item != NULL )
1154     {
1155         item->ShowInfo(this);
1156     }
1157
1158     wxLogMessage(wxT("OnItemActivated"));
1159 }
1160
1161 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1162 {
1163     wxTreeItemId itemId = event.GetItem();
1164     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1165                                          : NULL;
1166
1167     wxLogMessage(wxT("OnItemMenu for item \"%s\""), item ? item->GetDesc()
1168                                                          : _T(""));
1169
1170     event.Skip();
1171 }
1172
1173 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1174 {
1175     wxPoint pt = event.GetPosition();
1176     wxTreeItemId item;
1177     if ( !HasFlag(wxTR_MULTIPLE) )
1178         item = GetSelection();
1179     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1180
1181     // check if event was generated by keyboard (MSW-specific?)
1182     if ( pt.x == -1 && pt.y == -1 ) //(this is how MSW indicates it)
1183     {
1184         // attempt to guess where to show the menu
1185         if ( item.IsOk() )
1186         {
1187             // if an item was clicked, show menu to the right of it
1188             wxRect rect;
1189             GetBoundingRect(item, rect, true /* only the label */);
1190             pt = wxPoint(rect.GetRight(), rect.GetTop());
1191         }
1192         else
1193         {
1194             pt = wxPoint(0, 0);
1195         }
1196     }
1197     else // event was generated by mouse, use supplied coords
1198     {
1199         pt = ScreenToClient(pt);
1200     }
1201
1202     ShowMenu(item, pt);
1203 }
1204
1205 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1206 {
1207     wxString title;
1208     if ( id.IsOk() )
1209     {
1210         title << wxT("Menu for ") << GetItemText(id);
1211     }
1212     else
1213     {
1214         title = wxT("Menu for no particular item");
1215     }
1216
1217 #if wxUSE_MENUS
1218     wxMenu menu(title);
1219     menu.Append(TreeTest_About, wxT("&About..."));
1220     menu.Append(TreeTest_Dump, wxT("&Dump"));
1221
1222     PopupMenu(&menu, pt);
1223 #endif // wxUSE_MENUS
1224 }
1225
1226 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1227 {
1228     wxTreeItemId itemId = event.GetItem();
1229     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1230                                          : NULL;
1231
1232     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1233                                                         : _T(""));
1234
1235     event.Skip();
1236 }
1237
1238 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1239 {
1240     wxLogMessage(wxT("Right mouse button down"));
1241
1242     event.Skip();
1243 }
1244
1245 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1246 {
1247     wxLogMessage(wxT("Right mouse button up"));
1248
1249     event.Skip();
1250 }
1251
1252 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1253 {
1254     wxTreeItemId id = HitTest(event.GetPosition());
1255     if ( !id )
1256         wxLogMessage(wxT("No item under mouse"));
1257     else
1258     {
1259         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1260         if ( item )
1261             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1262     }
1263
1264     event.Skip();
1265 }
1266
1267 static inline const wxChar *Bool2String(bool b)
1268 {
1269     return b ? wxT("") : wxT("not ");
1270 }
1271
1272 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1273 {
1274     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1275                  wxT("%u children (%u immediately under this item)."),
1276                  m_desc.c_str(),
1277                  Bool2String(tree->IsSelected(GetId())),
1278                  Bool2String(tree->IsExpanded(GetId())),
1279                  Bool2String(tree->IsBold(GetId())),
1280                  tree->GetChildrenCount(GetId()),
1281                  tree->GetChildrenCount(GetId(), false));
1282 }