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 is the preferred event for creating context menus
 148     // on a tree control, because it includes the point of the click or item,
 149     // meaning that no additional placement calculations are required.
 150     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 151     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 152
 153     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 154     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 155     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 156 END_EVENT_TABLE()
 157
 158 IMPLEMENT_APP(MyApp)
 159
 160 bool MyApp::OnInit()
 161 {
 162     // Create the main frame window
 163     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 164
 165     // Show the frame
 166     frame->Show(true);
 167     SetTopWindow(frame);
 168
 169     return true;
 170 }
 171
 172
 173 // My frame constructor
 174 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 175        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 176          m_treeCtrl(NULL)
 177 #if wxUSE_LOG
 178          , m_textCtrl(NULL)
 179 #endif // wxUSE_LOG
 180 {
 181     // This reduces flicker effects - even better would be to define
 182     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 183     // show or hidden, the frame is sent a background erase event.
 184     SetBackgroundColour(wxColour(255, 255, 255));
 185
 186     // Give it an icon
 187     SetIcon(wxICON(mondrian));
 188
 189 #if wxUSE_MENUS
 190     // Make a menubar
 191     wxMenu *file_menu = new wxMenu,
 192            *style_menu = new wxMenu,
 193            *tree_menu = new wxMenu,
 194            *item_menu = new wxMenu;
 195
 196     file_menu->Append(TreeTest_About, wxT("&About..."));
 197     file_menu->AppendSeparator();
 198     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 199
 200     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 201     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 202     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 203     style_menu->AppendSeparator();
 204     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 205     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 206     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 207     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 208     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 209     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 210 #ifndef NO_MULTIPLE_SELECTION
 211     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
 212 #endif // NO_MULTIPLE_SELECTION
 213     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 214     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 215     style_menu->AppendSeparator();
 216     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 217     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 218     style_menu->AppendSeparator();
 219     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 220
 221     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 222     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 223     tree_menu->AppendSeparator();
 224     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 225     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 226     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 227     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 228     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 229     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 230     tree_menu->AppendSeparator();
 231     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 232     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 233     tree_menu->AppendSeparator();
 234     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 235     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 236     tree_menu->AppendSeparator();
 237     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 238     tree_menu->AppendSeparator();
 239     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 240     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 241     tree_menu->AppendSeparator();
 242     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 243     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 244
 245     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 246     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 247
 248     item_menu->AppendSeparator();
 249     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 250     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 251     item_menu->AppendSeparator();
 252     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 253
 254 #ifndef NO_MULTIPLE_SELECTION
 255     item_menu->AppendSeparator();
 256     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 257     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 258     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 259 #endif // NO_MULTIPLE_SELECTION
 260
 261     wxMenuBar *menu_bar = new wxMenuBar;
 262     menu_bar->Append(file_menu, wxT("&File"));
 263     menu_bar->Append(style_menu, wxT("&Style"));
 264     menu_bar->Append(tree_menu, wxT("&Tree"));
 265     menu_bar->Append(item_menu, wxT("&Item"));
 266     SetMenuBar(menu_bar);
 267 #endif // wxUSE_MENUS
 268
 269 #if wxUSE_LOG
 270     // create the controls
 271     m_textCtrl = new wxTextCtrl(this, 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(this, 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::OnDump(wxCommandEvent& WXUNUSED(event))
 464 {
 465     wxTreeItemId root = m_treeCtrl->GetSelection();
 466
 467     CHECK_ITEM( root );
 468
 469     m_treeCtrl->GetItemsRecursively(root);
 470 }
 471
 472 #ifndef NO_MULTIPLE_SELECTION
 473
 474 void MyFrame::OnToggleSel(wxCommandEvent& event)
 475 {
 476     TogStyle(event.GetId(), wxTR_MULTIPLE);
 477 }
 478
 479 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 480 {
 481     wxArrayTreeItemIds array;
 482
 483     size_t count = m_treeCtrl->GetSelections(array);
 484     wxLogMessage(wxT("%u items selected"), count);
 485
 486     for ( size_t n = 0; n < count; n++ )
 487     {
 488         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 489     }
 490 }
 491
 492 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 493 {
 494     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 495 }
 496
 497 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 498 {
 499     m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 500 }
 501
 502 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 503 {
 504     m_treeCtrl->UnselectAll();
 505 }
 506
 507 #endif // NO_MULTIPLE_SELECTION
 508
 509 void MyFrame::DoSetBold(bool bold)
 510 {
 511     wxTreeItemId item = m_treeCtrl->GetSelection();
 512
 513     CHECK_ITEM( item );
 514
 515     m_treeCtrl->SetItemBold(item, bold);
 516 }
 517
 518 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 519 {
 520     wxTreeItemId item = m_treeCtrl->GetSelection();
 521
 522     CHECK_ITEM( item );
 523
 524     m_treeCtrl->Delete(item);
 525 }
 526
 527 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 528 {
 529     wxTreeItemId item = m_treeCtrl->GetSelection();
 530
 531     CHECK_ITEM( item );
 532
 533     m_treeCtrl->DeleteChildren(item);
 534 }
 535
 536 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 537 {
 538     m_treeCtrl->DeleteAllItems();
 539 }
 540
 541 void MyFrame::OnRecreate(wxCommandEvent& event)
 542 {
 543     OnDeleteAll(event);
 544     m_treeCtrl->AddTestItemsToTree(5, 2);
 545 }
 546
 547 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 548 {
 549     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 550                                     wxT("Size: "),
 551                                     wxT("TreeCtrl sample"),
 552                                     m_treeCtrl->ImageSize());
 553     if ( size == -1 )
 554         return;
 555
 556     m_treeCtrl->CreateImageList(size);
 557     wxGetApp().SetShowImages(true);
 558 }
 559
 560 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 561 {
 562     if ( wxGetApp().ShowImages() )
 563     {
 564         m_treeCtrl->CreateImageList(-1);
 565         wxGetApp().SetShowImages(false);
 566     }
 567     else
 568     {
 569         m_treeCtrl->CreateImageList(0);
 570         wxGetApp().SetShowImages(true);
 571     }
 572 }
 573
 574 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 575 {
 576 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 577     if ( wxGetApp().ShowButtons() )
 578     {
 579         m_treeCtrl->CreateButtonsImageList(-1);
 580         wxGetApp().SetShowButtons(false);
 581     }
 582     else
 583     {
 584         m_treeCtrl->CreateButtonsImageList(15);
 585         wxGetApp().SetShowButtons(true);
 586     }
 587 #endif
 588 }
 589
 590 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 591 {
 592     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 593 }
 594
 595 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 596 {
 597     m_treeCtrl->DoEnsureVisible();
 598 }
 599
 600 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 601 {
 602     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 603     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 604 }
 605
 606 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 607 {
 608     static int s_num = 0;
 609
 610     wxString text;
 611     text.Printf(wxT("Item #%d"), ++s_num);
 612
 613     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 614                            text /*,
 615                            MyTreeCtrl::TreeCtrlIcon_File */ );
 616 }
 617
 618 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 619 {
 620     unsigned int indent = m_treeCtrl->GetIndent();
 621     if (indent < 100)
 622         m_treeCtrl->SetIndent( indent+5 );
 623 }
 624
 625 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 626 {
 627     unsigned int indent = m_treeCtrl->GetIndent();
 628     if (indent > 10)
 629         m_treeCtrl->SetIndent( indent-5 );
 630 }
 631
 632 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 633 {
 634     unsigned int indent = m_treeCtrl->GetSpacing();
 635     if (indent < 100)
 636         m_treeCtrl->SetSpacing( indent+5 );
 637 }
 638
 639 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 640 {
 641     unsigned int indent = m_treeCtrl->GetSpacing();
 642     if (indent > 10)
 643         m_treeCtrl->SetSpacing( indent-5 );
 644 }
 645
 646 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 647 {
 648     wxTreeItemId item = m_treeCtrl->GetSelection();
 649
 650     CHECK_ITEM( item );
 651
 652     m_treeCtrl->DoToggleIcon(item);
 653 }
 654
 655 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 656 {
 657     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 658     if ( col.Ok() )
 659         m_treeCtrl->SetForegroundColour(col);
 660 }
 661
 662 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 663 {
 664     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 665     if ( col.Ok() )
 666         m_treeCtrl->SetBackgroundColour(col);
 667 }
 668
 669 // MyTreeCtrl implementation
 670 #if USE_GENERIC_TREECTRL
 671 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 672 #else
 673 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 674 #endif
 675
 676 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 677                        const wxPoint& pos, const wxSize& size,
 678                        long style)
 679           : wxTreeCtrl(parent, id, pos, size, style)
 680 {
 681     m_reverseSort = false;
 682
 683     CreateImageList();
 684
 685     // Add some items to the tree
 686     AddTestItemsToTree(5, 2);
 687 }
 688
 689 void MyTreeCtrl::CreateImageList(int size)
 690 {
 691     if ( size == -1 )
 692     {
 693         SetImageList(NULL);
 694         return;
 695     }
 696     if ( size == 0 )
 697         size = m_imageSize;
 698     else
 699         m_imageSize = size;
 700
 701     // Make an image list containing small icons
 702     wxImageList *images = new wxImageList(size, size, true);
 703
 704     // should correspond to TreeCtrlIcon_xxx enum
 705     wxBusyCursor wait;
 706     wxIcon icons[5];
 707     icons[0] = wxIcon(icon1_xpm);
 708     icons[1] = wxIcon(icon2_xpm);
 709     icons[2] = wxIcon(icon3_xpm);
 710     icons[3] = wxIcon(icon4_xpm);
 711     icons[4] = wxIcon(icon5_xpm);
 712
 713     int sizeOrig = icons[0].GetWidth();
 714     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 715     {
 716         if ( size == sizeOrig )
 717         {
 718             images->Add(icons[i]);
 719         }
 720         else
 721         {
 722             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 723         }
 724     }
 725
 726     AssignImageList(images);
 727 }
 728
 729 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 730 void MyTreeCtrl::CreateButtonsImageList(int size)
 731 {
 732     if ( size == -1 )
 733     {
 734         SetButtonsImageList(NULL);
 735         return;
 736     }
 737
 738     // Make an image list containing small icons
 739     wxImageList *images = new wxImageList(size, size, true);
 740
 741     // should correspond to TreeCtrlIcon_xxx enum
 742     wxBusyCursor wait;
 743     wxIcon icons[4];
 744     icons[0] = wxIcon(icon3_xpm);   // closed
 745     icons[1] = wxIcon(icon3_xpm);   // closed, selected
 746     icons[2] = wxIcon(icon5_xpm);   // open
 747     icons[3] = wxIcon(icon5_xpm);   // open, selected
 748
 749     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 750     {
 751         int sizeOrig = icons[i].GetWidth();
 752         if ( size == sizeOrig )
 753         {
 754             images->Add(icons[i]);
 755         }
 756         else
 757         {
 758             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 759         }
 760     }
 761
 762     AssignButtonsImageList(images);
 763 #else
 764 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 765 {
 766 #endif
 767 }
 768
 769 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 770                                const wxTreeItemId& item2)
 771 {
 772     if ( m_reverseSort )
 773     {
 774         // just exchange 1st and 2nd items
 775         return wxTreeCtrl::OnCompareItems(item2, item1);
 776     }
 777     else
 778     {
 779         return wxTreeCtrl::OnCompareItems(item1, item2);
 780     }
 781 }
 782
 783 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
 784                                      size_t numChildren,
 785                                      size_t depth,
 786                                      size_t folder)
 787 {
 788     if ( depth > 0 )
 789     {
 790         bool hasChildren = depth > 1;
 791
 792         wxString str;
 793         for ( size_t n = 0; n < numChildren; n++ )
 794         {
 795             // at depth 1 elements won't have any more children
 796             if ( hasChildren )
 797                 str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
 798             else
 799                 str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
 800
 801             // here we pass to AppendItem() normal and selected item images (we
 802             // suppose that selected image follows the normal one in the enum)
 803             int image, imageSel;
 804             if ( wxGetApp().ShowImages() )
 805             {
 806                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
 807                 imageSel = image + 1;
 808             }
 809             else
 810             {
 811                 image = imageSel = -1;
 812             }
 813             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
 814                                          new MyTreeItemData(str));
 815
 816             // and now we also set the expanded one (only for the folders)
 817             if ( hasChildren && wxGetApp().ShowImages() )
 818             {
 819                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
 820                              wxTreeItemIcon_Expanded);
 821             }
 822
 823             // remember the last child for OnEnsureVisible()
 824             if ( !hasChildren && n == numChildren - 1 )
 825             {
 826                 m_lastItem = id;
 827             }
 828
 829             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
 830         }
 831     }
 832     //else: done!
 833 }
 834
 835 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
 836                                     size_t depth)
 837 {
 838     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
 839     wxTreeItemId rootId = AddRoot(wxT("Root"),
 840                                   image, image,
 841                                   new MyTreeItemData(wxT("Root item")));
 842     if ( image != -1 )
 843     {
 844         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
 845     }
 846
 847     AddItemsRecursively(rootId, numChildren, depth, 0);
 848
 849     // set some colours/fonts for testing
 850     SetItemFont(rootId, *wxITALIC_FONT);
 851
 852     wxTreeItemIdValue cookie;
 853     wxTreeItemId id = GetFirstChild(rootId, cookie);
 854     SetItemTextColour(id, *wxBLUE);
 855
 856     id = GetNextChild(rootId, cookie);
 857     id = GetNextChild(rootId, cookie);
 858     SetItemTextColour(id, *wxRED);
 859     SetItemBackgroundColour(id, *wxLIGHT_GREY);
 860 }
 861
 862 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
 863                                      wxTreeItemIdValue cookie)
 864 {
 865     wxTreeItemId id;
 866
 867     if ( !cookie )
 868         id = GetFirstChild(idParent, cookie);
 869     else
 870         id = GetNextChild(idParent, cookie);
 871
 872     if ( !id.IsOk() )
 873         return;
 874
 875     wxString text = GetItemText(id);
 876     wxLogMessage(text);
 877
 878     if (ItemHasChildren(id))
 879         GetItemsRecursively(id);
 880
 881     GetItemsRecursively(idParent, cookie);
 882 }
 883
 884 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
 885 {
 886     int image = GetItemImage(item) == TreeCtrlIcon_Folder ? TreeCtrlIcon_File
 887                                                           : TreeCtrlIcon_Folder;
 888
 889     SetItemImage(item, image);
 890 }
 891
 892
 893 // avoid repetition
 894 #define TREE_EVENT_HANDLER(name)                                 \
 895 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 896 {                                                                \
 897     wxLogMessage(wxT(#name));                                    \
 898     SetLastItem(wxTreeItemId());                                 \
 899     event.Skip();                                                \
 900 }
 901
 902 TREE_EVENT_HANDLER(OnBeginRDrag)
 903 TREE_EVENT_HANDLER(OnDeleteItem)
 904 TREE_EVENT_HANDLER(OnGetInfo)
 905 TREE_EVENT_HANDLER(OnSetInfo)
 906 TREE_EVENT_HANDLER(OnItemExpanded)
 907 TREE_EVENT_HANDLER(OnItemExpanding)
 908 TREE_EVENT_HANDLER(OnItemCollapsed)
 909 TREE_EVENT_HANDLER(OnSelChanged)
 910 TREE_EVENT_HANDLER(OnSelChanging)
 911
 912 #undef TREE_EVENT_HANDLER
 913
 914 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
 915 {
 916     wxString key;
 917     long keycode = event.GetKeyCode();
 918     {
 919         switch ( keycode )
 920         {
 921             case WXK_BACK: key = wxT("BACK"); break;
 922             case WXK_TAB: key = wxT("TAB"); break;
 923             case WXK_RETURN: key = wxT("RETURN"); break;
 924             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
 925             case WXK_SPACE: key = wxT("SPACE"); break;
 926             case WXK_DELETE: key = wxT("DELETE"); break;
 927             case WXK_START: key = wxT("START"); break;
 928             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
 929             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
 930             case WXK_CANCEL: key = wxT("CANCEL"); break;
 931             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
 932             case WXK_CLEAR: key = wxT("CLEAR"); break;
 933             case WXK_SHIFT: key = wxT("SHIFT"); break;
 934             case WXK_ALT: key = wxT("ALT"); break;
 935             case WXK_CONTROL: key = wxT("CONTROL"); break;
 936             case WXK_MENU: key = wxT("MENU"); break;
 937             case WXK_PAUSE: key = wxT("PAUSE"); break;
 938             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
 939             case WXK_PRIOR: key = wxT("PRIOR"); break;
 940             case WXK_NEXT: key = wxT("NEXT"); break;
 941             case WXK_END: key = wxT("END"); break;
 942             case WXK_HOME: key = wxT("HOME"); break;
 943             case WXK_LEFT: key = wxT("LEFT"); break;
 944             case WXK_UP: key = wxT("UP"); break;
 945             case WXK_RIGHT: key = wxT("RIGHT"); break;
 946             case WXK_DOWN: key = wxT("DOWN"); break;
 947             case WXK_SELECT: key = wxT("SELECT"); break;
 948             case WXK_PRINT: key = wxT("PRINT"); break;
 949             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
 950             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
 951             case WXK_INSERT: key = wxT("INSERT"); break;
 952             case WXK_HELP: key = wxT("HELP"); break;
 953             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
 954             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
 955             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
 956             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
 957             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
 958             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
 959             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
 960             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
 961             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
 962             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
 963             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
 964             case WXK_ADD: key = wxT("ADD"); break;
 965             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
 966             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
 967             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
 968             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
 969             case WXK_F1: key = wxT("F1"); break;
 970             case WXK_F2: key = wxT("F2"); break;
 971             case WXK_F3: key = wxT("F3"); break;
 972             case WXK_F4: key = wxT("F4"); break;
 973             case WXK_F5: key = wxT("F5"); break;
 974             case WXK_F6: key = wxT("F6"); break;
 975             case WXK_F7: key = wxT("F7"); break;
 976             case WXK_F8: key = wxT("F8"); break;
 977             case WXK_F9: key = wxT("F9"); break;
 978             case WXK_F10: key = wxT("F10"); break;
 979             case WXK_F11: key = wxT("F11"); break;
 980             case WXK_F12: key = wxT("F12"); break;
 981             case WXK_F13: key = wxT("F13"); break;
 982             case WXK_F14: key = wxT("F14"); break;
 983             case WXK_F15: key = wxT("F15"); break;
 984             case WXK_F16: key = wxT("F16"); break;
 985             case WXK_F17: key = wxT("F17"); break;
 986             case WXK_F18: key = wxT("F18"); break;
 987             case WXK_F19: key = wxT("F19"); break;
 988             case WXK_F20: key = wxT("F20"); break;
 989             case WXK_F21: key = wxT("F21"); break;
 990             case WXK_F22: key = wxT("F22"); break;
 991             case WXK_F23: key = wxT("F23"); break;
 992             case WXK_F24: key = wxT("F24"); break;
 993             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
 994             case WXK_SCROLL: key = wxT("SCROLL"); break;
 995             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
 996             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
 997             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
 998             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
 999             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
1000             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
1001             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1002             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1003             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1004             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1005             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1006             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1007             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1008             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1009             case WXK_NUMPAD_PRIOR: key = wxT("NUMPAD_PRIOR"); break;
1010             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1011             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1012             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1013             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1014             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1015             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1016             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1017             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1018             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1019             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1020             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1021             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1022
1023             default:
1024             {
1025                if ( keycode < 128 && wxIsprint((int)keycode) )
1026                    key.Printf(wxT("'%c'"), (char)keycode);
1027                else if ( keycode > 0 && keycode < 27 )
1028                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1029                else
1030                    key.Printf(wxT("unknown (%ld)"), keycode);
1031             }
1032         }
1033     }
1034
1035     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1036                   name,
1037                   key.c_str(),
1038                   event.ControlDown() ? wxT('C') : wxT('-'),
1039                   event.AltDown() ? wxT('A') : wxT('-'),
1040                   event.ShiftDown() ? wxT('S') : wxT('-'),
1041                   event.MetaDown() ? wxT('M') : wxT('-'));
1042 }
1043
1044 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1045 {
1046     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1047
1048     event.Skip();
1049 }
1050
1051 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1052 {
1053     // need to explicitly allow drag
1054     if ( event.GetItem() != GetRootItem() )
1055     {
1056         m_draggedItem = event.GetItem();
1057
1058         wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
1059                      GetItemText(m_draggedItem).c_str());
1060
1061         event.Allow();
1062     }
1063     else
1064     {
1065         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1066     }
1067 }
1068
1069 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1070 {
1071     wxTreeItemId itemSrc = m_draggedItem,
1072                  itemDst = event.GetItem();
1073     m_draggedItem = (wxTreeItemId)0l;
1074
1075     // where to copy the item?
1076     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1077     {
1078         // copy to the parent then
1079         itemDst = GetItemParent(itemDst);
1080     }
1081
1082     if ( !itemDst.IsOk() )
1083     {
1084         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1085
1086         return;
1087     }
1088
1089     wxString text = GetItemText(itemSrc);
1090     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1091                  text.c_str(), GetItemText(itemDst).c_str());
1092
1093     // just do append here - we could also insert it just before/after the item
1094     // on which it was dropped, but this requires slightly more work... we also
1095     // completely ignore the client data and icon of the old item but could
1096     // copy them as well.
1097     //
1098     // Finally, we only copy one item here but we might copy the entire tree if
1099     // we were dragging a folder.
1100     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1101     AppendItem(itemDst, text, image);
1102 }
1103
1104 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1105 {
1106     wxLogMessage(wxT("OnBeginLabelEdit"));
1107
1108     // for testing, prevent this item's label editing
1109     wxTreeItemId itemId = event.GetItem();
1110     if ( IsTestItem(itemId) )
1111     {
1112         wxMessageBox(wxT("You can't edit this item."));
1113
1114         event.Veto();
1115     }
1116     else if ( itemId == GetRootItem() )
1117     {
1118         // test that it is possible to change the text of the item being edited
1119         SetItemText(itemId, _T("Editing root item"));
1120     }
1121 }
1122
1123 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1124 {
1125     wxLogMessage(wxT("OnEndLabelEdit"));
1126
1127     // don't allow anything except letters in the labels
1128     if ( !event.GetLabel().IsWord() )
1129     {
1130         wxMessageBox(wxT("The new label should be a single word."));
1131
1132         event.Veto();
1133     }
1134 }
1135
1136 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1137 {
1138     wxLogMessage(wxT("OnItemCollapsing"));
1139
1140     // for testing, prevent the user from collapsing the first child folder
1141     wxTreeItemId itemId = event.GetItem();
1142     if ( IsTestItem(itemId) )
1143     {
1144         wxMessageBox(wxT("You can't collapse this item."));
1145
1146         event.Veto();
1147     }
1148 }
1149
1150 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1151 {
1152     // show some info about this item
1153     wxTreeItemId itemId = event.GetItem();
1154     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1155
1156     if ( item != NULL )
1157     {
1158         item->ShowInfo(this);
1159     }
1160
1161     wxLogMessage(wxT("OnItemActivated"));
1162 }
1163
1164 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1165 {
1166     wxTreeItemId itemId = event.GetItem();
1167     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1168                                          : NULL;
1169
1170     wxLogMessage(wxT("OnItemMenu for item \"%s\""), item ? item->GetDesc()
1171                                                          : _T(""));
1172
1173     event.Skip();
1174 }
1175
1176 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1177 {
1178     wxPoint pt = event.GetPosition();
1179     wxTreeItemId item;
1180     if ( !HasFlag(wxTR_MULTIPLE) )
1181         item = GetSelection();
1182     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1183
1184     // check if event was generated by keyboard (MSW-specific?)
1185     if ( pt.x == -1 && pt.y == -1 ) //(this is how MSW indicates it)
1186     {
1187         // attempt to guess where to show the menu
1188         if ( item.IsOk() )
1189         {
1190             // if an item was clicked, show menu to the right of it
1191             wxRect rect;
1192             GetBoundingRect(item, rect, true /* only the label */);
1193             pt = wxPoint(rect.GetRight(), rect.GetTop());
1194         }
1195         else
1196         {
1197             pt = wxPoint(0, 0);
1198         }
1199     }
1200     else // event was generated by mouse, use supplied coords
1201     {
1202         pt = ScreenToClient(pt);
1203     }
1204
1205     ShowMenu(item, pt);
1206 }
1207
1208 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1209 {
1210     wxString title;
1211     if ( id.IsOk() )
1212     {
1213         title << wxT("Menu for ") << GetItemText(id);
1214     }
1215     else
1216     {
1217         title = wxT("Menu for no particular item");
1218     }
1219
1220 #if wxUSE_MENUS
1221     wxMenu menu(title);
1222     menu.Append(TreeTest_About, wxT("&About..."));
1223     menu.Append(TreeTest_Dump, wxT("&Dump"));
1224
1225     PopupMenu(&menu, pt);
1226 #endif // wxUSE_MENUS
1227 }
1228
1229 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1230 {
1231     wxTreeItemId itemId = event.GetItem();
1232     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1233                                          : NULL;
1234
1235     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1236                                                         : _T(""));
1237
1238     event.Skip();
1239 }
1240
1241 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1242 {
1243     wxLogMessage(wxT("Right mouse button down"));
1244
1245     event.Skip();
1246 }
1247
1248 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1249 {
1250     wxLogMessage(wxT("Right mouse button up"));
1251
1252     event.Skip();
1253 }
1254
1255 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1256 {
1257     wxTreeItemId id = HitTest(event.GetPosition());
1258     if ( !id )
1259         wxLogMessage(wxT("No item under mouse"));
1260     else
1261     {
1262         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1263         if ( item )
1264             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1265     }
1266
1267     event.Skip();
1268 }
1269
1270 static inline const wxChar *Bool2String(bool b)
1271 {
1272     return b ? wxT("") : wxT("not ");
1273 }
1274
1275 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1276 {
1277     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1278                  wxT("%u children (%u immediately under this item)."),
1279                  m_desc.c_str(),
1280                  Bool2String(tree->IsSelected(GetId())),
1281                  Bool2String(tree->IsExpanded(GetId())),
1282                  Bool2String(tree->IsBold(GetId())),
1283                  tree->GetChildrenCount(GetId()),
1284                  tree->GetChildrenCount(GetId(), false));
1285 }