samples/treectrl/treetest.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        treetest.cpp
   3 // Purpose:     wxTreeCtrl sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/wx.h"
  21     #include "wx/log.h"
  22 #endif
  23
  24 #include "wx/colordlg.h"
  25 #include "wx/numdlg.h"
  26
  27 #include "wx/artprov.h"
  28 #include "wx/image.h"
  29 #include "wx/imaglist.h"
  30 #include "wx/treectrl.h"
  31 #include "wx/math.h"
  32 #include "wx/renderer.h"
  33
  34 #ifdef __WIN32__
  35     // this is not supported by native control
  36     #define NO_VARIABLE_HEIGHT
  37 #endif
  38
  39 #include "treetest.h"
  40
  41 #include "icon1.xpm"
  42 #include "icon2.xpm"
  43 #include "icon3.xpm"
  44 #include "icon4.xpm"
  45 #include "icon5.xpm"
  46
  47 #include "state1.xpm"
  48 #include "state2.xpm"
  49 #include "state3.xpm"
  50 #include "state4.xpm"
  51 #include "state5.xpm"
  52
  53 #include "unchecked.xpm"
  54 #include "checked.xpm"
  55
  56 #ifndef __WXMSW__
  57     #include "../sample.xpm"
  58 #endif
  59
  60 // verify that the item is ok and insult the user if it is not
  61 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  62                              wxMessageBox(wxT("Please select some item first!"), \
  63                                           wxT("Tree sample error"),              \
  64                                           wxOK | wxICON_EXCLAMATION,             \
  65                                           this);                                 \
  66                              return;                                             \
  67                            }
  68
  69 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  70
  71 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  72     EVT_IDLE(MyFrame::OnIdle)
  73     EVT_SIZE(MyFrame::OnSize)
  74
  75     MENU_LINK(Quit)
  76     MENU_LINK(About)
  77     MENU_LINK(ClearLog)
  78
  79     MENU_LINK(TogButtons)
  80     MENU_LINK(TogTwist)
  81     MENU_LINK(TogLines)
  82     MENU_LINK(TogEdit)
  83     MENU_LINK(TogHideRoot)
  84     MENU_LINK(TogRootLines)
  85     MENU_LINK(TogBorder)
  86     MENU_LINK(TogFullHighlight)
  87     MENU_LINK(SetFgColour)
  88     MENU_LINK(SetBgColour)
  89     MENU_LINK(ResetStyle)
  90
  91     MENU_LINK(Highlight)
  92     MENU_LINK(Dump)
  93 #ifndef NO_MULTIPLE_SELECTION
  94     MENU_LINK(DumpSelected)
  95     MENU_LINK(Select)
  96     MENU_LINK(Unselect)
  97     MENU_LINK(ToggleSel)
  98 #endif // NO_MULTIPLE_SELECTION
  99     MENU_LINK(Rename)
 100     MENU_LINK(Count)
 101     MENU_LINK(CountRec)
 102     MENU_LINK(Sort)
 103     MENU_LINK(SortRev)
 104     MENU_LINK(SetBold)
 105     MENU_LINK(ClearBold)
 106     MENU_LINK(Delete)
 107     MENU_LINK(DeleteChildren)
 108     MENU_LINK(DeleteAll)
 109     MENU_LINK(Recreate)
 110     MENU_LINK(ToggleImages)
 111     MENU_LINK(ToggleStates)
 112     MENU_LINK(ToggleAlternateImages)
 113     MENU_LINK(ToggleAlternateStates)
 114     MENU_LINK(ToggleButtons)
 115     MENU_LINK(SetImageSize)
 116     MENU_LINK(CollapseAndReset)
 117     MENU_LINK(EnsureVisible)
 118     MENU_LINK(SetFocus)
 119     MENU_LINK(AddItem)
 120     MENU_LINK(InsertItem)
 121     MENU_LINK(IncIndent)
 122     MENU_LINK(DecIndent)
 123     MENU_LINK(IncSpacing)
 124     MENU_LINK(DecSpacing)
 125     MENU_LINK(ToggleIcon)
 126     MENU_LINK(ToggleState)
 127     MENU_LINK(SelectRoot)
 128
 129     MENU_LINK(ShowFirstVisible)
 130 #ifdef wxHAS_LAST_VISIBLE
 131     MENU_LINK(ShowLastVisible)
 132 #endif // wxHAS_LAST_VISIBLE
 133     MENU_LINK(ShowNextVisible)
 134     MENU_LINK(ShowPrevVisible)
 135     MENU_LINK(ShowParent)
 136     MENU_LINK(ShowPrevSibling)
 137     MENU_LINK(ShowNextSibling)
 138 #undef MENU_LINK
 139
 140 END_EVENT_TABLE()
 141
 142 #if USE_GENERIC_TREECTRL
 143 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 144 #else
 145 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 146 #endif
 147     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 148     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 149     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 150     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 151     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 152     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 153 #if 0       // there are so many of those that logging them causes flicker
 154     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 155 #endif
 156     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 157     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 158     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 159     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 160     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 161
 162     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 163     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 164     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 165     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 166     EVT_TREE_STATE_IMAGE_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemStateClick)
 167
 168     // so many different ways to handle right mouse button clicks...
 169     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 170     // EVT_TREE_ITEM_MENU is the preferred event for creating context menus
 171     // on a tree control, because it includes the point of the click or item,
 172     // meaning that no additional placement calculations are required.
 173     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 174     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 175
 176     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 177     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 178     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 179 END_EVENT_TABLE()
 180
 181 IMPLEMENT_APP(MyApp)
 182
 183 bool MyApp::OnInit()
 184 {
 185     if ( !wxApp::OnInit() )
 186         return false;
 187
 188     // Create the main frame window
 189     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 190
 191     // Show the frame
 192     frame->Show(true);
 193     SetTopWindow(frame);
 194
 195     return true;
 196 }
 197
 198
 199 // My frame constructor
 200 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 201        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 202          m_treeCtrl(NULL)
 203 #if wxUSE_LOG
 204          , m_textCtrl(NULL)
 205 #endif // wxUSE_LOG
 206 {
 207     // This reduces flicker effects - even better would be to define
 208     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 209     // show or hidden, the frame is sent a background erase event.
 210     SetBackgroundColour(wxColour(255, 255, 255));
 211
 212     // Give it an icon
 213     SetIcon(wxICON(sample));
 214
 215 #if wxUSE_MENUS
 216     // Make a menubar
 217     wxMenu *file_menu = new wxMenu,
 218            *style_menu = new wxMenu,
 219            *tree_menu = new wxMenu,
 220            *item_menu = new wxMenu;
 221
 222     file_menu->Append(TreeTest_ClearLog, wxT("&Clear log\tCtrl-L"));
 223     file_menu->AppendSeparator();
 224     file_menu->Append(TreeTest_About, wxT("&About..."));
 225     file_menu->AppendSeparator();
 226     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 227
 228     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 229     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 230     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 231     style_menu->AppendSeparator();
 232     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 233     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 234     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 235     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 236     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 237     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 238 #ifndef NO_MULTIPLE_SELECTION
 239     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode\tCtrl-S"));
 240 #endif // NO_MULTIPLE_SELECTION
 241     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 242     style_menu->AppendCheckItem(TreeTest_ToggleStates, wxT("Toggle show st&ates"));
 243     style_menu->AppendCheckItem(TreeTest_ToggleAlternateImages, wxT("Toggle alternate images"));
 244     style_menu->AppendCheckItem(TreeTest_ToggleAlternateStates, wxT("Toggle alternate state images"));
 245     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 246     style_menu->AppendSeparator();
 247     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 248     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 249     style_menu->AppendSeparator();
 250     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 251
 252     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 253     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 254     tree_menu->AppendSeparator();
 255     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 256     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 257     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 258     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 259     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 260     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 261     tree_menu->AppendSeparator();
 262     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 263     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 264     tree_menu->AppendSeparator();
 265     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 266     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 267     tree_menu->AppendSeparator();
 268     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 269     tree_menu->Append(TreeTest_SetFocus, wxT("Set &focus to the tree"));
 270     tree_menu->AppendSeparator();
 271     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 272     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 273     tree_menu->AppendSeparator();
 274     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 275     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 276
 277     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 278     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 279
 280     item_menu->AppendSeparator();
 281     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 282     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 283     item_menu->AppendSeparator();
 284     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 285     item_menu->Append(TreeTest_ToggleState, wxT("Toggle the item's &state"));
 286     item_menu->AppendSeparator();
 287     item_menu->Append(TreeTest_ShowFirstVisible, wxT("Show &first visible"));
 288 #ifdef wxHAS_LAST_VISIBLE
 289     item_menu->Append(TreeTest_ShowLastVisible, wxT("Show &last visible"));
 290 #endif // wxHAS_LAST_VISIBLE
 291     item_menu->Append(TreeTest_ShowNextVisible, wxT("Show &next visible"));
 292     item_menu->Append(TreeTest_ShowPrevVisible, wxT("Show &previous visible"));
 293     item_menu->AppendSeparator();
 294     item_menu->Append(TreeTest_ShowParent, "Show pa&rent");
 295     item_menu->Append(TreeTest_ShowPrevSibling, "Show &previous sibling");
 296     item_menu->Append(TreeTest_ShowNextSibling, "Show &next sibling");
 297
 298 #ifndef NO_MULTIPLE_SELECTION
 299     item_menu->AppendSeparator();
 300     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 301     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 302     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 303 #endif // NO_MULTIPLE_SELECTION
 304
 305     wxMenuBar *menu_bar = new wxMenuBar;
 306     menu_bar->Append(file_menu, wxT("&File"));
 307     menu_bar->Append(style_menu, wxT("&Style"));
 308     menu_bar->Append(tree_menu, wxT("&Tree"));
 309     menu_bar->Append(item_menu, wxT("&Item"));
 310     SetMenuBar(menu_bar);
 311 #endif // wxUSE_MENUS
 312
 313     m_panel = new wxPanel(this);
 314
 315 #if wxUSE_LOG
 316     // create the controls
 317     m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""),
 318                                 wxDefaultPosition, wxDefaultSize,
 319                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 320 #endif // wxUSE_LOG
 321
 322     CreateTreeWithDefStyle();
 323
 324     menu_bar->Check(TreeTest_ToggleImages, true);
 325     menu_bar->Check(TreeTest_ToggleStates, true);
 326     menu_bar->Check(TreeTest_ToggleAlternateImages, false);
 327     menu_bar->Check(TreeTest_ToggleAlternateStates, false);
 328
 329 #if wxUSE_STATUSBAR
 330     // create a status bar
 331     CreateStatusBar(2);
 332 #endif // wxUSE_STATUSBAR
 333
 334 #if wxUSE_LOG
 335 #ifdef __WXMOTIF__
 336     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 337     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 338     delete wxLog::SetActiveTarget(new wxLogStderr);
 339 #else
 340     // set our text control as the log target
 341     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 342     delete wxLog::SetActiveTarget(logWindow);
 343 #endif
 344 #endif // wxUSE_LOG
 345 }
 346
 347 MyFrame::~MyFrame()
 348 {
 349 #if wxUSE_LOG
 350     delete wxLog::SetActiveTarget(NULL);
 351 #endif // wxUSE_LOG
 352 }
 353
 354 void MyFrame::CreateTreeWithDefStyle()
 355 {
 356     long style = wxTR_DEFAULT_STYLE |
 357 #ifndef NO_VARIABLE_HEIGHT
 358                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 359 #endif
 360                  wxTR_EDIT_LABELS;
 361
 362     CreateTree(style | wxSUNKEN_BORDER);
 363
 364     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 365     // everything
 366     wxMenuBar *mbar = GetMenuBar();
 367     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 368     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 369     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 370     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 371     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 372     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 373     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 374     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 375 }
 376
 377 void MyFrame::CreateTree(long style)
 378 {
 379     m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl,
 380                                 wxDefaultPosition, wxDefaultSize,
 381                                 style);
 382
 383     GetMenuBar()->Enable(TreeTest_SelectRoot, !(style & wxTR_HIDE_ROOT));
 384
 385     Resize();
 386 }
 387
 388 void MyFrame::TogStyle(int id, long flag)
 389 {
 390     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 391
 392     // most treectrl styles can't be changed on the fly using the native
 393     // control and the tree must be recreated
 394 #ifndef __WXMSW__
 395     m_treeCtrl->SetWindowStyle(style);
 396 #else // MSW
 397     delete m_treeCtrl;
 398     CreateTree(style);
 399 #endif // !MSW/MSW
 400
 401     GetMenuBar()->Check(id, (style & flag) != 0);
 402 }
 403
 404 void MyFrame::OnIdle(wxIdleEvent& event)
 405 {
 406 #if wxUSE_STATUSBAR
 407     if ( m_treeCtrl )
 408     {
 409         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 410         wxString status;
 411         if (idRoot.IsOk())
 412         {
 413             wxTreeItemId idLast = m_treeCtrl->GetLastChild(idRoot);
 414             status = wxString::Format(
 415                 _T("Root/last item is %svisible/%svisible"),
 416                 m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
 417                 idLast.IsOk() && m_treeCtrl->IsVisible(idLast)
 418                     ? _T("") : _T("not "));
 419         }
 420         else
 421             status = _T("No root item");
 422
 423         SetStatusText(status, 1);
 424     }
 425 #endif // wxUSE_STATUSBAR
 426
 427     event.Skip();
 428 }
 429
 430 void MyFrame::OnSize(wxSizeEvent& event)
 431 {
 432     if ( m_treeCtrl
 433 #if wxUSE_LOG
 434                     && m_textCtrl
 435 #endif // wxUSE_LOG
 436                                   )
 437     {
 438         Resize();
 439     }
 440
 441     event.Skip();
 442 }
 443
 444 void MyFrame::Resize()
 445 {
 446     wxSize size = GetClientSize();
 447     m_treeCtrl->SetSize(0, 0, size.x, size.y
 448 #if wxUSE_LOG
 449                                             *2/3);
 450     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3
 451 #endif
 452     );
 453 }
 454
 455 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 456 {
 457     Close(true);
 458 }
 459
 460 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 461 {
 462     wxMessageBox(wxT("Tree test sample\n")
 463                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 464                  wxT("About tree test"),
 465                  wxOK | wxICON_INFORMATION, this);
 466 }
 467
 468 void MyFrame::OnClearLog(wxCommandEvent& WXUNUSED(event))
 469 {
 470     m_textCtrl->Clear();
 471 }
 472
 473 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 474 {
 475     wxTreeItemId item = m_treeCtrl->GetSelection();
 476
 477     CHECK_ITEM( item );
 478
 479     // old code - now we edit in place
 480 #if 0
 481     static wxString s_text;
 482     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 483             s_text, this);
 484     if ( !s_text.empty() )
 485     {
 486         m_treeCtrl->SetItemText(item, s_text);
 487     }
 488 #endif // 0
 489
 490     // TODO demonstrate creating a custom edit control...
 491     (void)m_treeCtrl->EditLabel(item);
 492 }
 493
 494 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 495 {
 496     wxTreeItemId item = m_treeCtrl->GetSelection();
 497
 498     CHECK_ITEM( item );
 499
 500     int i = m_treeCtrl->GetChildrenCount( item, false );
 501
 502     wxLogMessage(wxT("%d children"), i);
 503 }
 504
 505 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 506 {
 507     wxTreeItemId item = m_treeCtrl->GetSelection();
 508
 509     CHECK_ITEM( item );
 510
 511     int i = m_treeCtrl->GetChildrenCount( item );
 512
 513     wxLogMessage(wxT("%d children"), i);
 514 }
 515
 516 void MyFrame::DoSort(bool reverse)
 517 {
 518     wxTreeItemId item = m_treeCtrl->GetSelection();
 519
 520     CHECK_ITEM( item );
 521
 522     m_treeCtrl->DoSortChildren(item, reverse);
 523 }
 524
 525 void MyFrame::OnHighlight(wxCommandEvent& WXUNUSED(event))
 526 {
 527     wxTreeItemId id = m_treeCtrl->GetSelection();
 528
 529     CHECK_ITEM( id );
 530
 531     wxRect r;
 532     if ( !m_treeCtrl->GetBoundingRect(id, r, true /* text, not full row */) )
 533     {
 534         wxLogMessage(_T("Failed to get bounding item rect"));
 535         return;
 536     }
 537
 538     wxClientDC dc(m_treeCtrl);
 539     dc.SetBrush(*wxRED);
 540     dc.SetPen(*wxTRANSPARENT_PEN);
 541     dc.DrawRectangle(r);
 542     m_treeCtrl->Update();
 543 }
 544
 545 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 546 {
 547     wxTreeItemId root = m_treeCtrl->GetSelection();
 548
 549     CHECK_ITEM( root );
 550
 551     m_treeCtrl->GetItemsRecursively(root);
 552 }
 553
 554 #ifndef NO_MULTIPLE_SELECTION
 555
 556 void MyFrame::OnToggleSel(wxCommandEvent& event)
 557 {
 558     TogStyle(event.GetId(), wxTR_MULTIPLE);
 559 }
 560
 561 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 562 {
 563     wxArrayTreeItemIds array;
 564
 565     size_t count = m_treeCtrl->GetSelections(array);
 566     wxLogMessage(wxT("%u items selected"), unsigned(count));
 567
 568     for ( size_t n = 0; n < count; n++ )
 569     {
 570         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 571     }
 572 }
 573
 574 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 575 {
 576     m_treeCtrl->SelectItem(m_treeCtrl->GetSelection());
 577 }
 578
 579 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 580 {
 581     if ( !m_treeCtrl->HasFlag(wxTR_HIDE_ROOT) )
 582         m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 583 }
 584
 585 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 586 {
 587     m_treeCtrl->UnselectAll();
 588 }
 589
 590 #endif // NO_MULTIPLE_SELECTION
 591
 592 void MyFrame::DoSetBold(bool bold)
 593 {
 594     wxTreeItemId item = m_treeCtrl->GetSelection();
 595
 596     CHECK_ITEM( item );
 597
 598     m_treeCtrl->SetItemBold(item, bold);
 599 }
 600
 601 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 602 {
 603     wxTreeItemId item = m_treeCtrl->GetSelection();
 604
 605     CHECK_ITEM( item );
 606
 607     m_treeCtrl->Delete(item);
 608 }
 609
 610 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 611 {
 612     wxTreeItemId item = m_treeCtrl->GetSelection();
 613
 614     CHECK_ITEM( item );
 615
 616     m_treeCtrl->DeleteChildren(item);
 617 }
 618
 619 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 620 {
 621     m_treeCtrl->DeleteAllItems();
 622 }
 623
 624 void MyFrame::OnRecreate(wxCommandEvent& event)
 625 {
 626     OnDeleteAll(event);
 627     m_treeCtrl->AddTestItemsToTree(5, 2);
 628 }
 629
 630 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 631 {
 632     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 633                                     wxT("Size: "),
 634                                     wxT("TreeCtrl sample"),
 635                                     m_treeCtrl->ImageSize());
 636     if ( size == -1 )
 637         return;
 638
 639     m_treeCtrl->CreateImageList(size);
 640     wxGetApp().SetShowImages(true);
 641 }
 642
 643 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 644 {
 645     if ( wxGetApp().ShowImages() )
 646     {
 647         m_treeCtrl->CreateImageList(-1);
 648         wxGetApp().SetShowImages(false);
 649     }
 650     else
 651     {
 652         m_treeCtrl->CreateImageList(0);
 653         wxGetApp().SetShowImages(true);
 654     }
 655 }
 656
 657 void MyFrame::OnToggleStates(wxCommandEvent& WXUNUSED(event))
 658 {
 659     if ( wxGetApp().ShowStates() )
 660     {
 661         m_treeCtrl->CreateStateImageList(true);
 662         wxGetApp().SetShowStates(false);
 663     }
 664     else
 665     {
 666         m_treeCtrl->CreateStateImageList(false);
 667         wxGetApp().SetShowStates(true);
 668     }
 669 }
 670
 671 void MyFrame::OnToggleAlternateImages(wxCommandEvent& WXUNUSED(event))
 672 {
 673     bool alternateImages = m_treeCtrl->AlternateImages();
 674
 675     m_treeCtrl->SetAlternateImages(!alternateImages);
 676     m_treeCtrl->CreateImageList(0);
 677 }
 678
 679 void MyFrame::OnToggleAlternateStates(wxCommandEvent& WXUNUSED(event))
 680 {
 681     bool alternateStates = m_treeCtrl->AlternateStates();
 682
 683     m_treeCtrl->SetAlternateStates(!alternateStates);
 684     m_treeCtrl->CreateStateImageList();
 685
 686     // normal states < alternate states
 687     // so we must reset broken states
 688     if ( alternateStates )
 689         m_treeCtrl->ResetBrokenStateImages();
 690 }
 691
 692 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 693 {
 694 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 695     if ( wxGetApp().ShowButtons() )
 696     {
 697         m_treeCtrl->CreateButtonsImageList(-1);
 698         wxGetApp().SetShowButtons(false);
 699     }
 700     else
 701     {
 702         m_treeCtrl->CreateButtonsImageList(15);
 703         wxGetApp().SetShowButtons(true);
 704     }
 705 #endif
 706 }
 707
 708 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 709 {
 710     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 711 }
 712
 713 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 714 {
 715     m_treeCtrl->DoEnsureVisible();
 716 }
 717
 718 void MyFrame::OnSetFocus(wxCommandEvent& WXUNUSED(event))
 719 {
 720     m_treeCtrl->SetFocus();
 721 }
 722
 723 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 724 {
 725     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 726     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 727 }
 728
 729 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 730 {
 731     static int s_num = 0;
 732
 733     wxString text;
 734     text.Printf(wxT("Item #%d"), ++s_num);
 735
 736     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 737                            text /*,
 738                            MyTreeCtrl::TreeCtrlIcon_File */ );
 739 }
 740
 741 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 742 {
 743     unsigned int indent = m_treeCtrl->GetIndent();
 744     if (indent < 100)
 745         m_treeCtrl->SetIndent( indent+5 );
 746 }
 747
 748 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 749 {
 750     unsigned int indent = m_treeCtrl->GetIndent();
 751     if (indent > 10)
 752         m_treeCtrl->SetIndent( indent-5 );
 753 }
 754
 755 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 756 {
 757     unsigned int indent = m_treeCtrl->GetSpacing();
 758     if (indent < 100)
 759         m_treeCtrl->SetSpacing( indent+5 );
 760 }
 761
 762 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 763 {
 764     unsigned int indent = m_treeCtrl->GetSpacing();
 765     if (indent > 10)
 766         m_treeCtrl->SetSpacing( indent-5 );
 767 }
 768
 769 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 770 {
 771     wxTreeItemId item = m_treeCtrl->GetSelection();
 772
 773     CHECK_ITEM( item );
 774
 775     m_treeCtrl->DoToggleIcon(item);
 776 }
 777
 778 void MyFrame::OnToggleState(wxCommandEvent& WXUNUSED(event))
 779 {
 780     wxTreeItemId item = m_treeCtrl->GetSelection();
 781
 782     CHECK_ITEM( item );
 783
 784     m_treeCtrl->DoToggleState(item);
 785 }
 786
 787 void MyFrame::DoShowFirstOrLast(TreeFunc0_t pfn, const wxString& label)
 788 {
 789     const wxTreeItemId item = (m_treeCtrl->*pfn)();
 790
 791     if ( !item.IsOk() )
 792         wxLogMessage("There is no %s item", label);
 793     else
 794         wxLogMessage("The %s item is \"%s\"",
 795                      label, m_treeCtrl->GetItemText(item));
 796 }
 797
 798 void MyFrame::DoShowRelativeItem(TreeFunc1_t pfn, const wxString& label)
 799 {
 800     wxTreeItemId item = m_treeCtrl->GetSelection();
 801
 802     CHECK_ITEM( item );
 803
 804     if ((pfn == (TreeFunc1_t) &wxTreeCtrl::GetPrevVisible
 805          || pfn == (TreeFunc1_t) &wxTreeCtrl::GetNextVisible)
 806         && !m_treeCtrl->IsVisible(item))
 807     {
 808         wxLogMessage("The selected item must be visible.");
 809         return;
 810     }
 811
 812     wxTreeItemId new_item = (m_treeCtrl->*pfn)(item);
 813
 814     if ( !new_item.IsOk() )
 815         wxLogMessage("There is no %s item", label);
 816     else
 817         wxLogMessage("The %s item is \"%s\"",
 818                      label, m_treeCtrl->GetItemText(new_item));
 819 }
 820
 821 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 822 {
 823     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 824     if ( col.Ok() )
 825         m_treeCtrl->SetForegroundColour(col);
 826 }
 827
 828 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 829 {
 830     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 831     if ( col.Ok() )
 832         m_treeCtrl->SetBackgroundColour(col);
 833 }
 834
 835 // MyTreeCtrl implementation
 836 #if USE_GENERIC_TREECTRL
 837 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 838 #else
 839 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 840 #endif
 841
 842 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 843                        const wxPoint& pos, const wxSize& size,
 844                        long style)
 845           : wxTreeCtrl(parent, id, pos, size, style),
 846             m_alternateImages(false),
 847             m_alternateStates(false)
 848 {
 849     m_reverseSort = false;
 850
 851     CreateImageList();
 852     CreateStateImageList();
 853
 854     // Add some items to the tree
 855     AddTestItemsToTree(5, 2);
 856 }
 857
 858 void MyTreeCtrl::CreateImageList(int size)
 859 {
 860     if ( size == -1 )
 861     {
 862         SetImageList(NULL);
 863         return;
 864     }
 865     if ( size == 0 )
 866         size = m_imageSize;
 867     else
 868         m_imageSize = size;
 869
 870     // Make an image list containing small icons
 871     wxImageList *images = new wxImageList(size, size, true);
 872
 873     // should correspond to TreeCtrlIcon_xxx enum
 874     wxBusyCursor wait;
 875     wxIcon icons[5];
 876
 877     if (m_alternateImages)
 878     {
 879         icons[TreeCtrlIcon_File] = wxIcon(icon1_xpm);
 880         icons[TreeCtrlIcon_FileSelected] = wxIcon(icon2_xpm);
 881         icons[TreeCtrlIcon_Folder] = wxIcon(icon3_xpm);
 882         icons[TreeCtrlIcon_FolderSelected] = wxIcon(icon4_xpm);
 883         icons[TreeCtrlIcon_FolderOpened] = wxIcon(icon5_xpm);
 884     }
 885     else
 886     {
 887         wxSize iconSize(size, size);
 888
 889         icons[TreeCtrlIcon_File] =
 890         icons[TreeCtrlIcon_FileSelected] = wxArtProvider::GetIcon(wxART_NORMAL_FILE, wxART_LIST, iconSize);
 891         icons[TreeCtrlIcon_Folder] =
 892         icons[TreeCtrlIcon_FolderSelected] =
 893         icons[TreeCtrlIcon_FolderOpened] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);
 894     }
 895
 896     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 897     {
 898         int sizeOrig = icons[0].GetWidth();
 899         if ( size == sizeOrig )
 900         {
 901             images->Add(icons[i]);
 902         }
 903         else
 904         {
 905             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 906         }
 907     }
 908
 909     AssignImageList(images);
 910 }
 911
 912 void MyTreeCtrl::CreateStateImageList(bool del)
 913 {
 914     if ( del )
 915     {
 916         SetStateImageList(NULL);
 917         return;
 918     }
 919
 920     wxImageList *states;
 921     wxBusyCursor wait;
 922
 923     if (m_alternateStates)
 924     {
 925         wxIcon icons[5];
 926         icons[0] = wxIcon(state1_xpm);  // yellow
 927         icons[1] = wxIcon(state2_xpm);  // green
 928         icons[2] = wxIcon(state3_xpm);  // red
 929         icons[3] = wxIcon(state4_xpm);  // blue
 930         icons[4] = wxIcon(state5_xpm);  // black
 931
 932         int width  = icons[0].GetWidth(),
 933             height = icons[0].GetHeight();
 934
 935         // Make an state image list containing small icons
 936         states = new wxImageList(width, height, true);
 937
 938         for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 939             states->Add(icons[i]);
 940     }
 941     else
 942     {
 943         wxIcon icons[2];
 944         icons[0] = wxIcon(unchecked_xpm);
 945         icons[1] = wxIcon(checked_xpm);
 946
 947         int width  = icons[0].GetWidth(),
 948             height = icons[0].GetHeight();
 949
 950         // Make an state image list containing small icons
 951         states = new wxImageList(width, height, true);
 952
 953         for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 954             states->Add(icons[i]);
 955     }
 956
 957     AssignStateImageList(states);
 958 }
 959
 960 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 961 void MyTreeCtrl::CreateButtonsImageList(int size)
 962 {
 963     if ( size == -1 )
 964     {
 965         SetButtonsImageList(NULL);
 966         return;
 967     }
 968
 969     // Make an image list containing small icons
 970     wxImageList *images = new wxImageList(size, size, true);
 971
 972     // should correspond to TreeCtrlIcon_xxx enum
 973     wxBusyCursor wait;
 974     wxIcon icons[4];
 975
 976     if (m_alternateImages)
 977     {
 978         icons[0] = wxIcon(icon3_xpm);   // closed
 979         icons[1] = wxIcon(icon3_xpm);   // closed, selected
 980         icons[2] = wxIcon(icon5_xpm);   // open
 981         icons[3] = wxIcon(icon5_xpm);   // open, selected
 982     }
 983     else
 984     {
 985         wxSize iconSize(size, size);
 986
 987         icons[0] =                                                                 // closed
 988         icons[1] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);     // closed, selected
 989         icons[2] =                                                                 // open
 990         icons[3] = wxArtProvider::GetIcon(wxART_FOLDER_OPEN, wxART_LIST, iconSize);// open, selected
 991     }
 992
 993    for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 994     {
 995         int sizeOrig = icons[i].GetWidth();
 996         if ( size == sizeOrig )
 997         {
 998             images->Add(icons[i]);
 999         }
1000         else
1001         {
1002             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
1003         }
1004     }
1005
1006     AssignButtonsImageList(images);
1007 #else
1008 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
1009 {
1010 #endif
1011 }
1012
1013 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
1014                                const wxTreeItemId& item2)
1015 {
1016     if ( m_reverseSort )
1017     {
1018         // just exchange 1st and 2nd items
1019         return wxTreeCtrl::OnCompareItems(item2, item1);
1020     }
1021     else
1022     {
1023         return wxTreeCtrl::OnCompareItems(item1, item2);
1024     }
1025 }
1026
1027 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
1028                                      size_t numChildren,
1029                                      size_t depth,
1030                                      size_t folder)
1031 {
1032     if ( depth > 0 )
1033     {
1034         bool hasChildren = depth > 1;
1035
1036         wxString str;
1037         for ( size_t n = 0; n < numChildren; n++ )
1038         {
1039             // at depth 1 elements won't have any more children
1040             if ( hasChildren )
1041                 str.Printf(wxT("%s child %u"), wxT("Folder"), unsigned(n + 1));
1042             else
1043                 str.Printf(wxT("%s child %u.%u"), wxT("File"), unsigned(folder), unsigned(n + 1));
1044
1045             // here we pass to AppendItem() normal and selected item images (we
1046             // suppose that selected image follows the normal one in the enum)
1047             int image, imageSel;
1048             if ( wxGetApp().ShowImages() )
1049             {
1050                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
1051                 imageSel = image + 1;
1052             }
1053             else
1054             {
1055                 image = imageSel = -1;
1056             }
1057             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
1058                                          new MyTreeItemData(str));
1059
1060             if ( wxGetApp().ShowStates() )
1061                 SetItemState(id, 0);
1062
1063             // and now we also set the expanded one (only for the folders)
1064             if ( hasChildren && wxGetApp().ShowImages() )
1065             {
1066                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
1067                              wxTreeItemIcon_Expanded);
1068             }
1069
1070             // remember the last child for OnEnsureVisible()
1071             if ( !hasChildren && n == numChildren - 1 )
1072             {
1073                 m_lastItem = id;
1074             }
1075
1076             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
1077         }
1078     }
1079     //else: done!
1080 }
1081
1082 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
1083                                     size_t depth)
1084 {
1085     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
1086     wxTreeItemId rootId = AddRoot(wxT("Root"),
1087                                   image, image,
1088                                   new MyTreeItemData(wxT("Root item")));
1089     if ( !HasFlag(wxTR_HIDE_ROOT) && image != -1 )
1090     {
1091         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
1092     }
1093
1094     AddItemsRecursively(rootId, numChildren, depth, 0);
1095
1096     // set some colours/fonts for testing
1097     if ( !HasFlag(wxTR_HIDE_ROOT) )
1098         SetItemFont(rootId, *wxITALIC_FONT);
1099
1100     wxTreeItemIdValue cookie;
1101     wxTreeItemId id = GetFirstChild(rootId, cookie);
1102     SetItemTextColour(id, *wxBLUE);
1103
1104     id = GetNextChild(rootId, cookie);
1105     id = GetNextChild(rootId, cookie);
1106     SetItemTextColour(id, *wxRED);
1107     SetItemBackgroundColour(id, *wxLIGHT_GREY);
1108 }
1109
1110 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
1111                                      wxTreeItemIdValue cookie)
1112 {
1113     wxTreeItemId id;
1114
1115     if ( !cookie )
1116         id = GetFirstChild(idParent, cookie);
1117     else
1118         id = GetNextChild(idParent, cookie);
1119
1120     if ( !id.IsOk() )
1121         return;
1122
1123     wxString text = GetItemText(id);
1124     wxLogMessage(text);
1125
1126     if (ItemHasChildren(id))
1127         GetItemsRecursively(id);
1128
1129     GetItemsRecursively(idParent, cookie);
1130 }
1131
1132 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
1133 {
1134     int image = GetItemImage(item) == TreeCtrlIcon_Folder
1135                     ? TreeCtrlIcon_File
1136                     : TreeCtrlIcon_Folder;
1137     SetItemImage(item, image, wxTreeItemIcon_Normal);
1138
1139     image = GetItemImage(item, wxTreeItemIcon_Selected) == TreeCtrlIcon_FolderSelected
1140                     ? TreeCtrlIcon_FileSelected
1141                     : TreeCtrlIcon_FolderSelected;
1142     SetItemImage(item, image, wxTreeItemIcon_Selected);
1143 }
1144
1145 void MyTreeCtrl::DoToggleState(const wxTreeItemId& item)
1146 {
1147     if ( m_alternateStates )
1148     {
1149         // sets random state unlike current
1150         int state = GetItemState(item);
1151         int nState;
1152
1153         srand (time(NULL));
1154         do {
1155             nState = rand() % GetStateImageList()->GetImageCount();
1156         } while (nState == state);
1157
1158         SetItemState(item, nState);
1159     }
1160     else
1161     {
1162         // we have only 2 checkbox states, so next state will be reversed
1163         SetItemState(item, wxTREE_ITEMSTATE_NEXT);
1164     }
1165 }
1166
1167 void MyTreeCtrl::DoResetBrokenStateImages(const wxTreeItemId& idParent,
1168                                           wxTreeItemIdValue cookie, int state)
1169 {
1170     wxTreeItemId id;
1171
1172     if ( !cookie )
1173         id = GetFirstChild(idParent, cookie);
1174     else
1175         id = GetNextChild(idParent, cookie);
1176
1177     if ( !id.IsOk() )
1178         return;
1179
1180     int curState = GetItemState(id);
1181     if ( curState != wxTREE_ITEMSTATE_NONE && curState > state )
1182         SetItemState(id, state);
1183
1184     if (ItemHasChildren(id))
1185         DoResetBrokenStateImages(id, 0, state);
1186
1187     DoResetBrokenStateImages(idParent, cookie, state);
1188 }
1189
1190 void MyTreeCtrl::LogEvent(const wxChar *name, const wxTreeEvent& event)
1191 {
1192     wxTreeItemId item = event.GetItem();
1193     wxString text;
1194     if ( item.IsOk() )
1195         text << _T('"') << GetItemText(item).c_str() << _T('"');
1196     else
1197         text = _T("invalid item");
1198     wxLogMessage(wxT("%s(%s)"), name, text.c_str());
1199 }
1200
1201 // avoid repetition
1202 #define TREE_EVENT_HANDLER(name)                                 \
1203 void MyTreeCtrl::name(wxTreeEvent& event)                        \
1204 {                                                                \
1205     LogEvent(_T(#name), event);                                  \
1206     SetLastItem(wxTreeItemId());                                 \
1207     event.Skip();                                                \
1208 }
1209
1210 TREE_EVENT_HANDLER(OnBeginRDrag)
1211 TREE_EVENT_HANDLER(OnDeleteItem)
1212 TREE_EVENT_HANDLER(OnGetInfo)
1213 TREE_EVENT_HANDLER(OnSetInfo)
1214 TREE_EVENT_HANDLER(OnItemExpanded)
1215 TREE_EVENT_HANDLER(OnItemExpanding)
1216 TREE_EVENT_HANDLER(OnItemCollapsed)
1217 TREE_EVENT_HANDLER(OnSelChanged)
1218 TREE_EVENT_HANDLER(OnSelChanging)
1219
1220 #undef TREE_EVENT_HANDLER
1221
1222 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
1223 {
1224     wxString key;
1225     long keycode = event.GetKeyCode();
1226     {
1227         switch ( keycode )
1228         {
1229             case WXK_BACK: key = wxT("BACK"); break;
1230             case WXK_TAB: key = wxT("TAB"); break;
1231             case WXK_RETURN: key = wxT("RETURN"); break;
1232             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
1233             case WXK_SPACE: key = wxT("SPACE"); break;
1234             case WXK_DELETE: key = wxT("DELETE"); break;
1235             case WXK_START: key = wxT("START"); break;
1236             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
1237             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
1238             case WXK_CANCEL: key = wxT("CANCEL"); break;
1239             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
1240             case WXK_CLEAR: key = wxT("CLEAR"); break;
1241             case WXK_SHIFT: key = wxT("SHIFT"); break;
1242             case WXK_ALT: key = wxT("ALT"); break;
1243             case WXK_CONTROL: key = wxT("CONTROL"); break;
1244             case WXK_MENU: key = wxT("MENU"); break;
1245             case WXK_PAUSE: key = wxT("PAUSE"); break;
1246             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
1247             case WXK_END: key = wxT("END"); break;
1248             case WXK_HOME: key = wxT("HOME"); break;
1249             case WXK_LEFT: key = wxT("LEFT"); break;
1250             case WXK_UP: key = wxT("UP"); break;
1251             case WXK_RIGHT: key = wxT("RIGHT"); break;
1252             case WXK_DOWN: key = wxT("DOWN"); break;
1253             case WXK_SELECT: key = wxT("SELECT"); break;
1254             case WXK_PRINT: key = wxT("PRINT"); break;
1255             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
1256             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
1257             case WXK_INSERT: key = wxT("INSERT"); break;
1258             case WXK_HELP: key = wxT("HELP"); break;
1259             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
1260             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
1261             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
1262             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
1263             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
1264             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
1265             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
1266             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
1267             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
1268             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
1269             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
1270             case WXK_ADD: key = wxT("ADD"); break;
1271             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
1272             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
1273             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
1274             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
1275             case WXK_F1: key = wxT("F1"); break;
1276             case WXK_F2: key = wxT("F2"); break;
1277             case WXK_F3: key = wxT("F3"); break;
1278             case WXK_F4: key = wxT("F4"); break;
1279             case WXK_F5: key = wxT("F5"); break;
1280             case WXK_F6: key = wxT("F6"); break;
1281             case WXK_F7: key = wxT("F7"); break;
1282             case WXK_F8: key = wxT("F8"); break;
1283             case WXK_F9: key = wxT("F9"); break;
1284             case WXK_F10: key = wxT("F10"); break;
1285             case WXK_F11: key = wxT("F11"); break;
1286             case WXK_F12: key = wxT("F12"); break;
1287             case WXK_F13: key = wxT("F13"); break;
1288             case WXK_F14: key = wxT("F14"); break;
1289             case WXK_F15: key = wxT("F15"); break;
1290             case WXK_F16: key = wxT("F16"); break;
1291             case WXK_F17: key = wxT("F17"); break;
1292             case WXK_F18: key = wxT("F18"); break;
1293             case WXK_F19: key = wxT("F19"); break;
1294             case WXK_F20: key = wxT("F20"); break;
1295             case WXK_F21: key = wxT("F21"); break;
1296             case WXK_F22: key = wxT("F22"); break;
1297             case WXK_F23: key = wxT("F23"); break;
1298             case WXK_F24: key = wxT("F24"); break;
1299             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
1300             case WXK_SCROLL: key = wxT("SCROLL"); break;
1301             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
1302             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
1303             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
1304             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
1305             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
1306             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
1307             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1308             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1309             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1310             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1311             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1312             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1313             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1314             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1315             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1316             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1317             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1318             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1319             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1320             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1321             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1322             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1323             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1324             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1325             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1326             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1327
1328             default:
1329             {
1330                if ( keycode < 128 && wxIsprint((int)keycode) )
1331                    key.Printf(wxT("'%c'"), (char)keycode);
1332                else if ( keycode > 0 && keycode < 27 )
1333                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1334                else
1335                    key.Printf(wxT("unknown (%ld)"), keycode);
1336             }
1337         }
1338     }
1339
1340     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1341                   name,
1342                   key.c_str(),
1343                   event.ControlDown() ? wxT('C') : wxT('-'),
1344                   event.AltDown() ? wxT('A') : wxT('-'),
1345                   event.ShiftDown() ? wxT('S') : wxT('-'),
1346                   event.MetaDown() ? wxT('M') : wxT('-'));
1347 }
1348
1349 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1350 {
1351     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1352
1353     event.Skip();
1354 }
1355
1356 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1357 {
1358     // need to explicitly allow drag
1359     if ( event.GetItem() != GetRootItem() )
1360     {
1361         m_draggedItem = event.GetItem();
1362
1363         wxPoint clientpt = event.GetPoint();
1364         wxPoint screenpt = ClientToScreen(clientpt);
1365
1366         wxLogMessage(wxT("OnBeginDrag: started dragging %s at screen coords (%i,%i)"),
1367                      GetItemText(m_draggedItem).c_str(),
1368                      screenpt.x, screenpt.y);
1369
1370         event.Allow();
1371     }
1372     else
1373     {
1374         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1375     }
1376 }
1377
1378 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1379 {
1380     wxTreeItemId itemSrc = m_draggedItem,
1381                  itemDst = event.GetItem();
1382     m_draggedItem = (wxTreeItemId)0l;
1383
1384     // where to copy the item?
1385     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1386     {
1387         // copy to the parent then
1388         itemDst = GetItemParent(itemDst);
1389     }
1390
1391     if ( !itemDst.IsOk() )
1392     {
1393         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1394
1395         return;
1396     }
1397
1398     wxString text = GetItemText(itemSrc);
1399     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1400                  text.c_str(), GetItemText(itemDst).c_str());
1401
1402     // just do append here - we could also insert it just before/after the item
1403     // on which it was dropped, but this requires slightly more work... we also
1404     // completely ignore the client data and icon of the old item but could
1405     // copy them as well.
1406     //
1407     // Finally, we only copy one item here but we might copy the entire tree if
1408     // we were dragging a folder.
1409     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1410     wxTreeItemId id = AppendItem(itemDst, text, image);
1411
1412     if ( wxGetApp().ShowStates() )
1413         SetItemState(id, GetItemState(itemSrc));
1414 }
1415
1416 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1417 {
1418     wxLogMessage(wxT("OnBeginLabelEdit"));
1419
1420     // for testing, prevent this item's label editing
1421     wxTreeItemId itemId = event.GetItem();
1422     if ( IsTestItem(itemId) )
1423     {
1424         wxMessageBox(wxT("You can't edit this item."));
1425
1426         event.Veto();
1427     }
1428     else if ( itemId == GetRootItem() )
1429     {
1430         // test that it is possible to change the text of the item being edited
1431         SetItemText(itemId, _T("Editing root item"));
1432     }
1433 }
1434
1435 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1436 {
1437     wxLogMessage(wxT("OnEndLabelEdit"));
1438
1439     // don't allow anything except letters in the labels
1440     if ( !event.GetLabel().IsWord() )
1441     {
1442         wxMessageBox(wxT("The new label should be a single word."));
1443
1444         event.Veto();
1445     }
1446 }
1447
1448 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1449 {
1450     wxLogMessage(wxT("OnItemCollapsing"));
1451
1452     // for testing, prevent the user from collapsing the first child folder
1453     wxTreeItemId itemId = event.GetItem();
1454     if ( IsTestItem(itemId) )
1455     {
1456         wxMessageBox(wxT("You can't collapse this item."));
1457
1458         event.Veto();
1459     }
1460 }
1461
1462 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1463 {
1464     // show some info about this item
1465     wxTreeItemId itemId = event.GetItem();
1466     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1467
1468     if ( item != NULL )
1469     {
1470         item->ShowInfo(this);
1471     }
1472
1473     wxLogMessage(wxT("OnItemActivated"));
1474 }
1475
1476 void MyTreeCtrl::OnItemStateClick(wxTreeEvent& event)
1477 {
1478     // toggle item state
1479     wxTreeItemId itemId = event.GetItem();
1480     DoToggleState(itemId);
1481
1482     wxLogMessage(wxT("Item \"%s\" state changed to %d"),
1483                  GetItemText(itemId), GetItemState(itemId));
1484 }
1485
1486 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1487 {
1488     wxTreeItemId itemId = event.GetItem();
1489     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1490                                          : NULL;
1491     wxPoint clientpt = event.GetPoint();
1492     wxPoint screenpt = ClientToScreen(clientpt);
1493
1494     wxLogMessage(wxT("OnItemMenu for item \"%s\" at screen coords (%i, %i)"),
1495                  item ? item->GetDesc() : _T(""), screenpt.x, screenpt.y);
1496
1497     ShowMenu(itemId, clientpt);
1498     event.Skip();
1499 }
1500
1501 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1502 {
1503     wxPoint pt = event.GetPosition();
1504
1505     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1506
1507     event.Skip();
1508 }
1509
1510 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1511 {
1512     wxString title;
1513     if ( id.IsOk() )
1514     {
1515         title << wxT("Menu for ") << GetItemText(id);
1516     }
1517     else
1518     {
1519         title = wxT("Menu for no particular item");
1520     }
1521
1522 #if wxUSE_MENUS
1523     wxMenu menu(title);
1524     menu.Append(TreeTest_About, wxT("&About..."));
1525     menu.AppendSeparator();
1526     menu.Append(TreeTest_Highlight, wxT("&Highlight item"));
1527     menu.Append(TreeTest_Dump, wxT("&Dump"));
1528
1529     PopupMenu(&menu, pt);
1530 #endif // wxUSE_MENUS
1531 }
1532
1533 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1534 {
1535     wxTreeItemId itemId = event.GetItem();
1536     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1537                                          : NULL;
1538
1539     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1540                                                         : _T(""));
1541
1542     event.Skip();
1543 }
1544
1545 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1546 {
1547     wxLogMessage(wxT("Right mouse button down"));
1548
1549     event.Skip();
1550 }
1551
1552 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1553 {
1554     wxLogMessage(wxT("Right mouse button up"));
1555
1556     event.Skip();
1557 }
1558
1559 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1560 {
1561     wxTreeItemId id = HitTest(event.GetPosition());
1562     if ( !id )
1563         wxLogMessage(wxT("No item under mouse"));
1564     else
1565     {
1566         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1567         if ( item )
1568             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1569     }
1570
1571     event.Skip();
1572 }
1573
1574 static inline const wxChar *Bool2String(bool b)
1575 {
1576     return b ? wxT("") : wxT("not ");
1577 }
1578
1579 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1580 {
1581     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1582                  wxT("%u children (%u immediately under this item)."),
1583                  m_desc.c_str(),
1584                  Bool2String(tree->IsSelected(GetId())),
1585                  Bool2String(tree->IsExpanded(GetId())),
1586                  Bool2String(tree->IsBold(GetId())),
1587                  unsigned(tree->GetChildrenCount(GetId())),
1588                  unsigned(tree->GetChildrenCount(GetId(), false)));
1589 }