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