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 static const int NUM_CHILDREN_PER_LEVEL = 5;
  61 static const int NUM_LEVELS = 2;
  62
  63 // verify that the item is ok and insult the user if it is not
  64 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
  65                              wxMessageBox(wxT("Please select some item first!"), \
  66                                           wxT("Tree sample error"),              \
  67                                           wxOK | wxICON_EXCLAMATION,             \
  68                                           this);                                 \
  69                              return;                                             \
  70                            }
  71
  72 #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)
  73
  74 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  75     EVT_IDLE(MyFrame::OnIdle)
  76     EVT_SIZE(MyFrame::OnSize)
  77
  78     MENU_LINK(Quit)
  79     MENU_LINK(About)
  80     MENU_LINK(ClearLog)
  81
  82     MENU_LINK(TogButtons)
  83     MENU_LINK(TogTwist)
  84     MENU_LINK(TogLines)
  85     MENU_LINK(TogEdit)
  86     MENU_LINK(TogHideRoot)
  87     MENU_LINK(TogRootLines)
  88     MENU_LINK(TogBorder)
  89     MENU_LINK(TogFullHighlight)
  90     MENU_LINK(SetFgColour)
  91     MENU_LINK(SetBgColour)
  92     MENU_LINK(ResetStyle)
  93
  94     MENU_LINK(Highlight)
  95     MENU_LINK(Dump)
  96 #ifndef NO_MULTIPLE_SELECTION
  97     MENU_LINK(DumpSelected)
  98     MENU_LINK(Select)
  99     MENU_LINK(Unselect)
 100     MENU_LINK(ToggleSel)
 101     MENU_LINK(SelectChildren)
 102 #endif // NO_MULTIPLE_SELECTION
 103     MENU_LINK(Rename)
 104     MENU_LINK(Count)
 105     MENU_LINK(CountRec)
 106     MENU_LINK(Sort)
 107     MENU_LINK(SortRev)
 108     MENU_LINK(SetBold)
 109     MENU_LINK(ClearBold)
 110     MENU_LINK(Delete)
 111     MENU_LINK(DeleteChildren)
 112     MENU_LINK(DeleteAll)
 113     MENU_LINK(Recreate)
 114     MENU_LINK(ToggleImages)
 115     MENU_LINK(ToggleStates)
 116     MENU_LINK(ToggleAlternateImages)
 117     MENU_LINK(ToggleAlternateStates)
 118     MENU_LINK(ToggleButtons)
 119     MENU_LINK(SetImageSize)
 120     MENU_LINK(CollapseAndReset)
 121     MENU_LINK(EnsureVisible)
 122     MENU_LINK(SetFocus)
 123     MENU_LINK(AddItem)
 124     MENU_LINK(InsertItem)
 125     MENU_LINK(IncIndent)
 126     MENU_LINK(DecIndent)
 127     MENU_LINK(IncSpacing)
 128     MENU_LINK(DecSpacing)
 129     MENU_LINK(ToggleIcon)
 130     MENU_LINK(ToggleState)
 131     MENU_LINK(SelectRoot)
 132     MENU_LINK(SetFocusedRoot)
 133     MENU_LINK(ClearFocused)
 134
 135     MENU_LINK(ShowFirstVisible)
 136 #ifdef wxHAS_LAST_VISIBLE
 137     MENU_LINK(ShowLastVisible)
 138 #endif // wxHAS_LAST_VISIBLE
 139     MENU_LINK(ShowNextVisible)
 140     MENU_LINK(ShowPrevVisible)
 141     MENU_LINK(ShowParent)
 142     MENU_LINK(ShowPrevSibling)
 143     MENU_LINK(ShowNextSibling)
 144     MENU_LINK(ScrollTo)
 145     MENU_LINK(SelectLast)
 146 #undef MENU_LINK
 147
 148 END_EVENT_TABLE()
 149
 150 #if USE_GENERIC_TREECTRL
 151 BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl)
 152 #else
 153 BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
 154 #endif
 155     EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)
 156     EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)
 157     EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)
 158     EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)
 159     EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)
 160     EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)
 161 #if 0       // there are so many of those that logging them causes flicker
 162     EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo)
 163 #endif
 164     EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)
 165     EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)
 166     EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)
 167     EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)
 168     EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)
 169
 170     EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)
 171     EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)
 172     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
 173     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 174     EVT_TREE_STATE_IMAGE_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemStateClick)
 175
 176     // so many different ways to handle right mouse button clicks...
 177     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
 178     // EVT_TREE_ITEM_MENU is the preferred event for creating context menus
 179     // on a tree control, because it includes the point of the click or item,
 180     // meaning that no additional placement calculations are required.
 181     EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)
 182     EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)
 183
 184     EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)
 185     EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)
 186     EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)
 187 END_EVENT_TABLE()
 188
 189 IMPLEMENT_APP(MyApp)
 190
 191 bool MyApp::OnInit()
 192 {
 193     if ( !wxApp::OnInit() )
 194         return false;
 195
 196     // Create the main frame window
 197     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 198
 199     // Show the frame
 200     frame->Show(true);
 201     SetTopWindow(frame);
 202
 203     return true;
 204 }
 205
 206
 207 // My frame constructor
 208 MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
 209        : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)),
 210          m_treeCtrl(NULL)
 211 #if wxUSE_LOG
 212          , m_textCtrl(NULL)
 213 #endif // wxUSE_LOG
 214 {
 215     // This reduces flicker effects - even better would be to define
 216     // OnEraseBackground to do nothing. When the tree control's scrollbars are
 217     // show or hidden, the frame is sent a background erase event.
 218     SetBackgroundColour(wxColour(255, 255, 255));
 219
 220     // Give it an icon
 221     SetIcon(wxICON(sample));
 222
 223 #if wxUSE_MENUS
 224     // Make a menubar
 225     wxMenu *file_menu = new wxMenu,
 226            *style_menu = new wxMenu,
 227            *tree_menu = new wxMenu,
 228            *item_menu = new wxMenu;
 229
 230     file_menu->Append(TreeTest_ClearLog, wxT("&Clear log\tCtrl-L"));
 231     file_menu->AppendSeparator();
 232     file_menu->Append(TreeTest_About, wxT("&About..."));
 233     file_menu->AppendSeparator();
 234     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
 235
 236     style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("Toggle &normal buttons"));
 237     style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons"));
 238     style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("Toggle image &buttons"));
 239     style_menu->AppendSeparator();
 240     style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines"));
 241     style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root"));
 242     style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root"));
 243     style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border"));
 244     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
 245     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 246 #ifndef NO_MULTIPLE_SELECTION
 247     style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode\tCtrl-S"));
 248 #endif // NO_MULTIPLE_SELECTION
 249     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
 250     style_menu->AppendCheckItem(TreeTest_ToggleStates, wxT("Toggle show st&ates"));
 251     style_menu->AppendCheckItem(TreeTest_ToggleAlternateImages, wxT("Toggle alternate images"));
 252     style_menu->AppendCheckItem(TreeTest_ToggleAlternateStates, wxT("Toggle alternate state images"));
 253     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
 254     style_menu->AppendSeparator();
 255     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
 256     style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour..."));
 257     style_menu->AppendSeparator();
 258     style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default\tF10"));
 259
 260     tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree"));
 261     tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset"));
 262     tree_menu->AppendSeparator();
 263     tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item"));
 264     tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item"));
 265     tree_menu->Append(TreeTest_Delete, wxT("&Delete this item"));
 266     tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children"));
 267     tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items"));
 268     tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item"));
 269     tree_menu->AppendSeparator();
 270     tree_menu->Append(TreeTest_SetFocusedRoot, wxT("Set focus to root item"));
 271     tree_menu->Append(TreeTest_ClearFocused, wxT("Reset focus"));
 272
 273     tree_menu->AppendSeparator();
 274     tree_menu->Append(TreeTest_Count, wxT("Count children of current item"));
 275     tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item"));
 276     tree_menu->AppendSeparator();
 277     tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item"));
 278     tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order"));
 279     tree_menu->AppendSeparator();
 280     tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible"));
 281     tree_menu->Append(TreeTest_SetFocus, wxT("Set &focus to the tree"));
 282     tree_menu->AppendSeparator();
 283     tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation\tAlt-I"));
 284     tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points\tAlt-R"));
 285     tree_menu->AppendSeparator();
 286     tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing\tCtrl-I"));
 287     tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points\tCtrl-R"));
 288
 289     item_menu->Append(TreeTest_Dump, wxT("&Dump item children"));
 290     item_menu->Append(TreeTest_Rename, wxT("&Rename item..."));
 291
 292     item_menu->AppendSeparator();
 293     item_menu->Append(TreeTest_SetBold, wxT("Make item &bold"));
 294     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
 295     item_menu->AppendSeparator();
 296     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
 297     item_menu->Append(TreeTest_ToggleState, wxT("Toggle the item's &state"));
 298     item_menu->AppendSeparator();
 299     item_menu->Append(TreeTest_ShowFirstVisible, wxT("Show &first visible"));
 300 #ifdef wxHAS_LAST_VISIBLE
 301     item_menu->Append(TreeTest_ShowLastVisible, wxT("Show &last visible"));
 302 #endif // wxHAS_LAST_VISIBLE
 303     item_menu->Append(TreeTest_ShowNextVisible, wxT("Show &next visible"));
 304     item_menu->Append(TreeTest_ShowPrevVisible, wxT("Show &previous visible"));
 305     item_menu->AppendSeparator();
 306     item_menu->Append(TreeTest_ShowParent, "Show pa&rent");
 307     item_menu->Append(TreeTest_ShowPrevSibling, "Show &previous sibling");
 308     item_menu->Append(TreeTest_ShowNextSibling, "Show &next sibling");
 309     item_menu->AppendSeparator();
 310     item_menu->Append(TreeTest_ScrollTo, "Scroll &to item",
 311                       "Scroll to the last by one top level child");
 312     item_menu->Append(TreeTest_SelectLast, "Select &last item",
 313                       "Select the last item");
 314
 315 #ifndef NO_MULTIPLE_SELECTION
 316     item_menu->AppendSeparator();
 317     item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items\tAlt-D"));
 318     item_menu->Append(TreeTest_Select, wxT("Select current item\tAlt-S"));
 319     item_menu->Append(TreeTest_Unselect, wxT("Unselect everything\tAlt-U"));
 320     item_menu->Append(TreeTest_SelectChildren, wxT("Select all children\tCtrl-A"));
 321 #endif // NO_MULTIPLE_SELECTION
 322
 323     wxMenuBar *menu_bar = new wxMenuBar;
 324     menu_bar->Append(file_menu, wxT("&File"));
 325     menu_bar->Append(style_menu, wxT("&Style"));
 326     menu_bar->Append(tree_menu, wxT("&Tree"));
 327     menu_bar->Append(item_menu, wxT("&Item"));
 328     SetMenuBar(menu_bar);
 329 #endif // wxUSE_MENUS
 330
 331     m_panel = new wxPanel(this);
 332
 333 #if wxUSE_LOG
 334     // create the controls
 335     m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""),
 336                                 wxDefaultPosition, wxDefaultSize,
 337                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 338 #endif // wxUSE_LOG
 339
 340     CreateTreeWithDefStyle();
 341
 342     menu_bar->Check(TreeTest_ToggleImages, true);
 343     menu_bar->Check(TreeTest_ToggleStates, true);
 344     menu_bar->Check(TreeTest_ToggleAlternateImages, false);
 345     menu_bar->Check(TreeTest_ToggleAlternateStates, false);
 346
 347 #if wxUSE_STATUSBAR
 348     // create a status bar
 349     CreateStatusBar(2);
 350 #endif // wxUSE_STATUSBAR
 351
 352 #if wxUSE_LOG
 353 #ifdef __WXMOTIF__
 354     // For some reason, we get a memcpy crash in wxLogStream::DoLogStream
 355     // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc?
 356     delete wxLog::SetActiveTarget(new wxLogStderr);
 357 #else
 358     // set our text control as the log target
 359     wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl);
 360     delete wxLog::SetActiveTarget(logWindow);
 361 #endif
 362 #endif // wxUSE_LOG
 363 }
 364
 365 MyFrame::~MyFrame()
 366 {
 367 #if wxUSE_LOG
 368     delete wxLog::SetActiveTarget(NULL);
 369 #endif // wxUSE_LOG
 370 }
 371
 372 void MyFrame::CreateTreeWithDefStyle()
 373 {
 374     long style = wxTR_DEFAULT_STYLE |
 375 #ifndef NO_VARIABLE_HEIGHT
 376                  wxTR_HAS_VARIABLE_ROW_HEIGHT |
 377 #endif
 378                  wxTR_EDIT_LABELS;
 379
 380     CreateTree(style | wxSUNKEN_BORDER);
 381
 382     // as we don't know what wxTR_DEFAULT_STYLE could contain, test for
 383     // everything
 384     wxMenuBar *mbar = GetMenuBar();
 385     mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0);
 386     mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0);
 387     mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0);
 388     mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0);
 389     mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0);
 390     mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0);
 391     mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0);
 392     mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0);
 393 }
 394
 395 void MyFrame::CreateTree(long style)
 396 {
 397     m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl,
 398                                 wxDefaultPosition, wxDefaultSize,
 399                                 style);
 400
 401     GetMenuBar()->Enable(TreeTest_SelectRoot, !(style & wxTR_HIDE_ROOT));
 402
 403     Resize();
 404 }
 405
 406 void MyFrame::TogStyle(int id, long flag)
 407 {
 408     long style = m_treeCtrl->GetWindowStyle() ^ flag;
 409
 410     // most treectrl styles can't be changed on the fly using the native
 411     // control and the tree must be recreated
 412 #ifndef __WXMSW__
 413     m_treeCtrl->SetWindowStyle(style);
 414 #else // MSW
 415     delete m_treeCtrl;
 416     CreateTree(style);
 417 #endif // !MSW/MSW
 418
 419     GetMenuBar()->Check(id, (style & flag) != 0);
 420 }
 421
 422 void MyFrame::OnIdle(wxIdleEvent& event)
 423 {
 424 #if wxUSE_STATUSBAR
 425     if ( m_treeCtrl )
 426     {
 427         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
 428         wxString status;
 429         if (idRoot.IsOk())
 430         {
 431             wxTreeItemId idLast = m_treeCtrl->GetLastChild(idRoot);
 432             status = wxString::Format(
 433                 wxT("Root/last item is %svisible/%svisible"),
 434                 m_treeCtrl->IsVisible(idRoot) ? wxT("") : wxT("not "),
 435                 idLast.IsOk() && m_treeCtrl->IsVisible(idLast)
 436                     ? wxT("") : wxT("not "));
 437         }
 438         else
 439             status = wxT("No root item");
 440
 441         SetStatusText(status, 1);
 442     }
 443 #endif // wxUSE_STATUSBAR
 444
 445     event.Skip();
 446 }
 447
 448 void MyFrame::OnSize(wxSizeEvent& event)
 449 {
 450     if ( m_treeCtrl
 451 #if wxUSE_LOG
 452                     && m_textCtrl
 453 #endif // wxUSE_LOG
 454                                   )
 455     {
 456         Resize();
 457     }
 458
 459     event.Skip();
 460 }
 461
 462 void MyFrame::Resize()
 463 {
 464     wxSize size = GetClientSize();
 465     m_treeCtrl->SetSize(0, 0, size.x, size.y
 466 #if wxUSE_LOG
 467                                             *2/3);
 468     m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3
 469 #endif
 470     );
 471 }
 472
 473 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 474 {
 475     Close(true);
 476 }
 477
 478 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 479 {
 480     wxMessageBox(wxT("Tree test sample\n")
 481                  wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"),
 482                  wxT("About tree test"),
 483                  wxOK | wxICON_INFORMATION, this);
 484 }
 485
 486 void MyFrame::OnClearLog(wxCommandEvent& WXUNUSED(event))
 487 {
 488     m_textCtrl->Clear();
 489 }
 490
 491 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 492 {
 493     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 494
 495     CHECK_ITEM( item );
 496
 497     // old code - now we edit in place
 498 #if 0
 499     static wxString s_text;
 500     s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"),
 501             s_text, this);
 502     if ( !s_text.empty() )
 503     {
 504         m_treeCtrl->SetItemText(item, s_text);
 505     }
 506 #endif // 0
 507
 508     // TODO demonstrate creating a custom edit control...
 509     (void)m_treeCtrl->EditLabel(item);
 510 }
 511
 512 void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event))
 513 {
 514     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 515
 516     CHECK_ITEM( item );
 517
 518     int i = m_treeCtrl->GetChildrenCount( item, false );
 519
 520     wxLogMessage(wxT("%d children"), i);
 521 }
 522
 523 void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event))
 524 {
 525     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 526
 527     CHECK_ITEM( item );
 528
 529     int i = m_treeCtrl->GetChildrenCount( item );
 530
 531     wxLogMessage(wxT("%d children"), i);
 532 }
 533
 534 void MyFrame::DoSort(bool reverse)
 535 {
 536     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 537
 538     CHECK_ITEM( item );
 539
 540     m_treeCtrl->DoSortChildren(item, reverse);
 541 }
 542
 543 void MyFrame::OnHighlight(wxCommandEvent& WXUNUSED(event))
 544 {
 545     wxTreeItemId id = m_treeCtrl->GetFocusedItem();
 546
 547     CHECK_ITEM( id );
 548
 549     wxRect r;
 550     if ( !m_treeCtrl->GetBoundingRect(id, r, true /* text, not full row */) )
 551     {
 552         wxLogMessage(wxT("Failed to get bounding item rect"));
 553         return;
 554     }
 555
 556     wxClientDC dc(m_treeCtrl);
 557     dc.SetBrush(*wxRED);
 558     dc.SetPen(*wxTRANSPARENT_PEN);
 559     dc.DrawRectangle(r);
 560     m_treeCtrl->Update();
 561 }
 562
 563 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 564 {
 565     wxTreeItemId root = m_treeCtrl->GetFocusedItem();
 566
 567     CHECK_ITEM( root );
 568
 569     m_treeCtrl->GetItemsRecursively(root);
 570 }
 571
 572 #ifndef NO_MULTIPLE_SELECTION
 573
 574 void MyFrame::OnToggleSel(wxCommandEvent& event)
 575 {
 576     TogStyle(event.GetId(), wxTR_MULTIPLE);
 577 }
 578
 579 void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
 580 {
 581     wxArrayTreeItemIds array;
 582
 583     size_t count = m_treeCtrl->GetSelections(array);
 584     wxLogMessage(wxT("%u items selected"), unsigned(count));
 585
 586     for ( size_t n = 0; n < count; n++ )
 587     {
 588         wxLogMessage(wxT("\t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str());
 589     }
 590 }
 591
 592 void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 593 {
 594     m_treeCtrl->SelectItem(m_treeCtrl->GetFocusedItem());
 595 }
 596
 597 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 598 {
 599     if ( !m_treeCtrl->HasFlag(wxTR_HIDE_ROOT) )
 600         m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 601 }
 602
 603 void MyFrame::OnSetFocusedRoot(wxCommandEvent& WXUNUSED(event))
 604 {
 605     if ( !m_treeCtrl->HasFlag(wxTR_HIDE_ROOT) )
 606         m_treeCtrl->SetFocusedItem(m_treeCtrl->GetRootItem());
 607 }
 608
 609 void MyFrame::OnClearFocused(wxCommandEvent& WXUNUSED(event))
 610 {
 611     m_treeCtrl->ClearFocusedItem();
 612 }
 613
 614 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
 615 {
 616     m_treeCtrl->UnselectAll();
 617 }
 618
 619 void MyFrame::OnSelectChildren(wxCommandEvent& WXUNUSED(event))
 620 {
 621     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 622     if ( !item.IsOk() )
 623         item = m_treeCtrl->GetRootItem();
 624
 625     m_treeCtrl->SelectChildren(item);
 626 }
 627
 628 #endif // NO_MULTIPLE_SELECTION
 629
 630 void MyFrame::DoSetBold(bool bold)
 631 {
 632     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 633
 634     CHECK_ITEM( item );
 635
 636     m_treeCtrl->SetItemBold(item, bold);
 637 }
 638
 639 void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event))
 640 {
 641     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 642
 643     CHECK_ITEM( item );
 644
 645     m_treeCtrl->Delete(item);
 646 }
 647
 648 void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event))
 649 {
 650     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 651
 652     CHECK_ITEM( item );
 653
 654     m_treeCtrl->DeleteChildren(item);
 655 }
 656
 657 void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event))
 658 {
 659     m_treeCtrl->DeleteAllItems();
 660 }
 661
 662 void MyFrame::OnRecreate(wxCommandEvent& event)
 663 {
 664     OnDeleteAll(event);
 665     m_treeCtrl->AddTestItemsToTree(NUM_CHILDREN_PER_LEVEL, NUM_LEVELS);
 666 }
 667
 668 void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event))
 669 {
 670     int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"),
 671                                     wxT("Size: "),
 672                                     wxT("TreeCtrl sample"),
 673                                     m_treeCtrl->ImageSize());
 674     if ( size == -1 )
 675         return;
 676
 677     m_treeCtrl->CreateImageList(size);
 678     wxGetApp().SetShowImages(true);
 679 }
 680
 681 void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
 682 {
 683     if ( wxGetApp().ShowImages() )
 684     {
 685         m_treeCtrl->CreateImageList(-1);
 686         wxGetApp().SetShowImages(false);
 687     }
 688     else
 689     {
 690         m_treeCtrl->CreateImageList(0);
 691         wxGetApp().SetShowImages(true);
 692     }
 693 }
 694
 695 void MyFrame::OnToggleStates(wxCommandEvent& WXUNUSED(event))
 696 {
 697     if ( wxGetApp().ShowStates() )
 698     {
 699         m_treeCtrl->CreateStateImageList(true);
 700         wxGetApp().SetShowStates(false);
 701     }
 702     else
 703     {
 704         m_treeCtrl->CreateStateImageList(false);
 705         wxGetApp().SetShowStates(true);
 706     }
 707 }
 708
 709 void MyFrame::OnToggleAlternateImages(wxCommandEvent& WXUNUSED(event))
 710 {
 711     bool alternateImages = m_treeCtrl->AlternateImages();
 712
 713     m_treeCtrl->SetAlternateImages(!alternateImages);
 714     m_treeCtrl->CreateImageList(0);
 715 }
 716
 717 void MyFrame::OnToggleAlternateStates(wxCommandEvent& WXUNUSED(event))
 718 {
 719     bool alternateStates = m_treeCtrl->AlternateStates();
 720
 721     m_treeCtrl->SetAlternateStates(!alternateStates);
 722     m_treeCtrl->CreateStateImageList();
 723
 724     // normal states < alternate states
 725     // so we must reset broken states
 726     if ( alternateStates )
 727         m_treeCtrl->ResetBrokenStateImages();
 728 }
 729
 730 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 731 {
 732 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 733     if ( wxGetApp().ShowButtons() )
 734     {
 735         m_treeCtrl->CreateButtonsImageList(-1);
 736         wxGetApp().SetShowButtons(false);
 737     }
 738     else
 739     {
 740         m_treeCtrl->CreateButtonsImageList(15);
 741         wxGetApp().SetShowButtons(true);
 742     }
 743 #endif
 744 }
 745
 746 void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event))
 747 {
 748     m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem());
 749 }
 750
 751 void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event))
 752 {
 753     m_treeCtrl->DoEnsureVisible();
 754 }
 755
 756 void MyFrame::OnSetFocus(wxCommandEvent& WXUNUSED(event))
 757 {
 758     m_treeCtrl->SetFocus();
 759 }
 760
 761 void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event))
 762 {
 763     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1;
 764     m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item"));
 765 }
 766
 767 void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event))
 768 {
 769     static int s_num = 0;
 770
 771     wxString text;
 772     text.Printf(wxT("Item #%d"), ++s_num);
 773
 774     m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(),
 775                            text /*,
 776                            MyTreeCtrl::TreeCtrlIcon_File */ );
 777 }
 778
 779 void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event))
 780 {
 781     unsigned int indent = m_treeCtrl->GetIndent();
 782     if (indent < 100)
 783         m_treeCtrl->SetIndent( indent+5 );
 784 }
 785
 786 void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event))
 787 {
 788     unsigned int indent = m_treeCtrl->GetIndent();
 789     if (indent > 10)
 790         m_treeCtrl->SetIndent( indent-5 );
 791 }
 792
 793 void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event))
 794 {
 795     unsigned int indent = m_treeCtrl->GetSpacing();
 796     if (indent < 100)
 797     {
 798         m_treeCtrl->SetSpacing( indent+5 );
 799         m_treeCtrl->Refresh();
 800     }
 801 }
 802
 803 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 804 {
 805     unsigned int indent = m_treeCtrl->GetSpacing();
 806     if (indent > 10)
 807     {
 808         m_treeCtrl->SetSpacing( indent-5 );
 809         m_treeCtrl->Refresh();
 810     }
 811 }
 812
 813 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 814 {
 815     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 816
 817     CHECK_ITEM( item );
 818
 819     m_treeCtrl->DoToggleIcon(item);
 820 }
 821
 822 void MyFrame::OnToggleState(wxCommandEvent& WXUNUSED(event))
 823 {
 824     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 825
 826     CHECK_ITEM( item );
 827
 828     m_treeCtrl->DoToggleState(item);
 829 }
 830
 831 void MyFrame::DoShowFirstOrLast(TreeFunc0_t pfn, const wxString& label)
 832 {
 833     const wxTreeItemId item = (m_treeCtrl->*pfn)();
 834
 835     if ( !item.IsOk() )
 836     {
 837         wxLogMessage("There is no %s item", label);
 838     }
 839     else
 840     {
 841         wxLogMessage("The %s item is \"%s\"",
 842                      label, m_treeCtrl->GetItemText(item));
 843     }
 844 }
 845
 846 void MyFrame::DoShowRelativeItem(TreeFunc1_t pfn, const wxString& label)
 847 {
 848     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 849
 850     CHECK_ITEM( item );
 851
 852     if ((pfn == (TreeFunc1_t) &wxTreeCtrl::GetPrevVisible
 853          || pfn == (TreeFunc1_t) &wxTreeCtrl::GetNextVisible)
 854         && !m_treeCtrl->IsVisible(item))
 855     {
 856         wxLogMessage("The selected item must be visible.");
 857         return;
 858     }
 859
 860     wxTreeItemId new_item = (m_treeCtrl->*pfn)(item);
 861
 862     if ( !new_item.IsOk() )
 863     {
 864         wxLogMessage("There is no %s item", label);
 865     }
 866     else
 867     {
 868         wxLogMessage("The %s item is \"%s\"",
 869                      label, m_treeCtrl->GetItemText(new_item));
 870     }
 871 }
 872
 873 void MyFrame::OnScrollTo(wxCommandEvent& WXUNUSED(event))
 874 {
 875     // scroll to the last but one top level child
 876     wxTreeItemId item = m_treeCtrl->GetPrevSibling(
 877                             m_treeCtrl->GetLastChild(
 878                                 m_treeCtrl->GetRootItem()));
 879     CHECK_ITEM( item );
 880
 881     m_treeCtrl->ScrollTo(item);
 882 }
 883
 884 void MyFrame::OnSelectLast(wxCommandEvent& WXUNUSED(event))
 885 {
 886     // select the very last item of the tree
 887     wxTreeItemId item = m_treeCtrl->GetRootItem();
 888     for ( ;; )
 889     {
 890         wxTreeItemId itemChild = m_treeCtrl->GetLastChild(item);
 891         if ( !itemChild.IsOk() )
 892             break;
 893
 894         item = itemChild;
 895     }
 896
 897     CHECK_ITEM( item );
 898
 899     m_treeCtrl->SelectItem(item);
 900 }
 901
 902 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 903 {
 904     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 905     if ( col.Ok() )
 906         m_treeCtrl->SetForegroundColour(col);
 907 }
 908
 909 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 910 {
 911     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 912     if ( col.Ok() )
 913         m_treeCtrl->SetBackgroundColour(col);
 914 }
 915
 916 // MyTreeCtrl implementation
 917 #if USE_GENERIC_TREECTRL
 918 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 919 #else
 920 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 921 #endif
 922
 923 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 924                        const wxPoint& pos, const wxSize& size,
 925                        long style)
 926           : wxTreeCtrl(parent, id, pos, size, style),
 927             m_alternateImages(false),
 928             m_alternateStates(false)
 929 {
 930     m_reverseSort = false;
 931
 932     CreateImageList();
 933     CreateStateImageList();
 934
 935     // Add some items to the tree
 936     AddTestItemsToTree(NUM_CHILDREN_PER_LEVEL, NUM_LEVELS);
 937 }
 938
 939 void MyTreeCtrl::CreateImageList(int size)
 940 {
 941     if ( size == -1 )
 942     {
 943         SetImageList(NULL);
 944         return;
 945     }
 946     if ( size == 0 )
 947         size = m_imageSize;
 948     else
 949         m_imageSize = size;
 950
 951     // Make an image list containing small icons
 952     wxImageList *images = new wxImageList(size, size, true);
 953
 954     // should correspond to TreeCtrlIcon_xxx enum
 955     wxBusyCursor wait;
 956     wxIcon icons[5];
 957
 958     if (m_alternateImages)
 959     {
 960         icons[TreeCtrlIcon_File] = wxIcon(icon1_xpm);
 961         icons[TreeCtrlIcon_FileSelected] = wxIcon(icon2_xpm);
 962         icons[TreeCtrlIcon_Folder] = wxIcon(icon3_xpm);
 963         icons[TreeCtrlIcon_FolderSelected] = wxIcon(icon4_xpm);
 964         icons[TreeCtrlIcon_FolderOpened] = wxIcon(icon5_xpm);
 965     }
 966     else
 967     {
 968         wxSize iconSize(size, size);
 969
 970         icons[TreeCtrlIcon_File] =
 971         icons[TreeCtrlIcon_FileSelected] = wxArtProvider::GetIcon(wxART_NORMAL_FILE, wxART_LIST, iconSize);
 972         icons[TreeCtrlIcon_Folder] =
 973         icons[TreeCtrlIcon_FolderSelected] =
 974         icons[TreeCtrlIcon_FolderOpened] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);
 975     }
 976
 977     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 978     {
 979         int sizeOrig = icons[0].GetWidth();
 980         if ( size == sizeOrig )
 981         {
 982             images->Add(icons[i]);
 983         }
 984         else
 985         {
 986             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 987         }
 988     }
 989
 990     AssignImageList(images);
 991 }
 992
 993 void MyTreeCtrl::CreateStateImageList(bool del)
 994 {
 995     if ( del )
 996     {
 997         SetStateImageList(NULL);
 998         return;
 999     }
1000
1001     wxImageList *states;
1002     wxBusyCursor wait;
1003
1004     if (m_alternateStates)
1005     {
1006         wxIcon icons[5];
1007         icons[0] = wxIcon(state1_xpm);  // yellow
1008         icons[1] = wxIcon(state2_xpm);  // green
1009         icons[2] = wxIcon(state3_xpm);  // red
1010         icons[3] = wxIcon(state4_xpm);  // blue
1011         icons[4] = wxIcon(state5_xpm);  // black
1012
1013         int width  = icons[0].GetWidth(),
1014             height = icons[0].GetHeight();
1015
1016         // Make an state image list containing small icons
1017         states = new wxImageList(width, height, true);
1018
1019         for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
1020             states->Add(icons[i]);
1021     }
1022     else
1023     {
1024         wxIcon icons[2];
1025         icons[0] = wxIcon(unchecked_xpm);
1026         icons[1] = wxIcon(checked_xpm);
1027
1028         int width  = icons[0].GetWidth(),
1029             height = icons[0].GetHeight();
1030
1031         // Make an state image list containing small icons
1032         states = new wxImageList(width, height, true);
1033
1034         for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
1035             states->Add(icons[i]);
1036     }
1037
1038     AssignStateImageList(states);
1039 }
1040
1041 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
1042 void MyTreeCtrl::CreateButtonsImageList(int size)
1043 {
1044     if ( size == -1 )
1045     {
1046         SetButtonsImageList(NULL);
1047         return;
1048     }
1049
1050     // Make an image list containing small icons
1051     wxImageList *images = new wxImageList(size, size, true);
1052
1053     // should correspond to TreeCtrlIcon_xxx enum
1054     wxBusyCursor wait;
1055     wxIcon icons[4];
1056
1057     if (m_alternateImages)
1058     {
1059         icons[0] = wxIcon(icon3_xpm);   // closed
1060         icons[1] = wxIcon(icon3_xpm);   // closed, selected
1061         icons[2] = wxIcon(icon5_xpm);   // open
1062         icons[3] = wxIcon(icon5_xpm);   // open, selected
1063     }
1064     else
1065     {
1066         wxSize iconSize(size, size);
1067
1068         icons[0] =                                                                 // closed
1069         icons[1] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);     // closed, selected
1070         icons[2] =                                                                 // open
1071         icons[3] = wxArtProvider::GetIcon(wxART_FOLDER_OPEN, wxART_LIST, iconSize);// open, selected
1072     }
1073
1074    for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
1075     {
1076         int sizeOrig = icons[i].GetWidth();
1077         if ( size == sizeOrig )
1078         {
1079             images->Add(icons[i]);
1080         }
1081         else
1082         {
1083             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
1084         }
1085     }
1086
1087     AssignButtonsImageList(images);
1088 #else
1089 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
1090 {
1091 #endif
1092 }
1093
1094 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
1095                                const wxTreeItemId& item2)
1096 {
1097     if ( m_reverseSort )
1098     {
1099         // just exchange 1st and 2nd items
1100         return wxTreeCtrl::OnCompareItems(item2, item1);
1101     }
1102     else
1103     {
1104         return wxTreeCtrl::OnCompareItems(item1, item2);
1105     }
1106 }
1107
1108 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
1109                                      size_t numChildren,
1110                                      size_t depth,
1111                                      size_t folder)
1112 {
1113     if ( depth > 0 )
1114     {
1115         bool hasChildren = depth > 1;
1116
1117         wxString str;
1118         for ( size_t n = 0; n < numChildren; n++ )
1119         {
1120             // at depth 1 elements won't have any more children
1121             if ( hasChildren )
1122                 str.Printf(wxT("%s child %u"), wxT("Folder"), unsigned(n + 1));
1123             else
1124                 str.Printf(wxT("%s child %u.%u"), wxT("File"), unsigned(folder), unsigned(n + 1));
1125
1126             // here we pass to AppendItem() normal and selected item images (we
1127             // suppose that selected image follows the normal one in the enum)
1128             int image, imageSel;
1129             if ( wxGetApp().ShowImages() )
1130             {
1131                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
1132                 imageSel = image + 1;
1133             }
1134             else
1135             {
1136                 image = imageSel = -1;
1137             }
1138             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
1139                                          new MyTreeItemData(str));
1140
1141             if ( wxGetApp().ShowStates() )
1142                 SetItemState(id, 0);
1143
1144             // and now we also set the expanded one (only for the folders)
1145             if ( hasChildren && wxGetApp().ShowImages() )
1146             {
1147                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
1148                              wxTreeItemIcon_Expanded);
1149             }
1150
1151             // remember the last child for OnEnsureVisible()
1152             if ( !hasChildren && n == numChildren - 1 )
1153             {
1154                 m_lastItem = id;
1155             }
1156
1157             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
1158         }
1159     }
1160     //else: done!
1161 }
1162
1163 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
1164                                     size_t depth)
1165 {
1166     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
1167     wxTreeItemId rootId = AddRoot(wxT("Root"),
1168                                   image, image,
1169                                   new MyTreeItemData(wxT("Root item")));
1170     if ( !HasFlag(wxTR_HIDE_ROOT) && image != -1 )
1171     {
1172         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
1173     }
1174
1175     AddItemsRecursively(rootId, numChildren, depth, 0);
1176
1177     // set some colours/fonts for testing
1178     if ( !HasFlag(wxTR_HIDE_ROOT) )
1179         SetItemFont(rootId, *wxITALIC_FONT);
1180
1181     wxTreeItemIdValue cookie;
1182     wxTreeItemId id = GetFirstChild(rootId, cookie);
1183     SetItemTextColour(id, *wxBLUE);
1184
1185     id = GetNextChild(rootId, cookie);
1186     if ( id )
1187         id = GetNextChild(rootId, cookie);
1188     if ( id )
1189     {
1190         SetItemTextColour(id, *wxRED);
1191         SetItemBackgroundColour(id, *wxLIGHT_GREY);
1192     }
1193 }
1194
1195 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
1196                                      wxTreeItemIdValue cookie)
1197 {
1198     wxTreeItemId id;
1199
1200     if ( !cookie )
1201         id = GetFirstChild(idParent, cookie);
1202     else
1203         id = GetNextChild(idParent, cookie);
1204
1205     if ( !id.IsOk() )
1206         return;
1207
1208     wxString text = GetItemText(id);
1209     wxLogMessage(text);
1210
1211     if (ItemHasChildren(id))
1212         GetItemsRecursively(id);
1213
1214     GetItemsRecursively(idParent, cookie);
1215 }
1216
1217 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
1218 {
1219     int image = GetItemImage(item) == TreeCtrlIcon_Folder
1220                     ? TreeCtrlIcon_File
1221                     : TreeCtrlIcon_Folder;
1222     SetItemImage(item, image, wxTreeItemIcon_Normal);
1223
1224     image = GetItemImage(item, wxTreeItemIcon_Selected) == TreeCtrlIcon_FolderSelected
1225                     ? TreeCtrlIcon_FileSelected
1226                     : TreeCtrlIcon_FolderSelected;
1227     SetItemImage(item, image, wxTreeItemIcon_Selected);
1228 }
1229
1230 void MyTreeCtrl::DoToggleState(const wxTreeItemId& item)
1231 {
1232     if ( m_alternateStates )
1233     {
1234         // sets random state unlike current
1235         int state = GetItemState(item);
1236         int nState;
1237
1238         srand (time(NULL));
1239         do {
1240             nState = rand() % GetStateImageList()->GetImageCount();
1241         } while (nState == state);
1242
1243         SetItemState(item, nState);
1244     }
1245     else
1246     {
1247         // we have only 2 checkbox states, so next state will be reversed
1248         SetItemState(item, wxTREE_ITEMSTATE_NEXT);
1249     }
1250 }
1251
1252 void MyTreeCtrl::DoResetBrokenStateImages(const wxTreeItemId& idParent,
1253                                           wxTreeItemIdValue cookie, int state)
1254 {
1255     wxTreeItemId id;
1256
1257     if ( !cookie )
1258         id = GetFirstChild(idParent, cookie);
1259     else
1260         id = GetNextChild(idParent, cookie);
1261
1262     if ( !id.IsOk() )
1263         return;
1264
1265     int curState = GetItemState(id);
1266     if ( curState != wxTREE_ITEMSTATE_NONE && curState > state )
1267         SetItemState(id, state);
1268
1269     if (ItemHasChildren(id))
1270         DoResetBrokenStateImages(id, 0, state);
1271
1272     DoResetBrokenStateImages(idParent, cookie, state);
1273 }
1274
1275 void MyTreeCtrl::LogEvent(const wxChar *name, const wxTreeEvent& event)
1276 {
1277     wxTreeItemId item = event.GetItem();
1278     wxString text;
1279     if ( item.IsOk() )
1280         text << wxT('"') << GetItemText(item).c_str() << wxT('"');
1281     else
1282         text = wxT("invalid item");
1283     wxLogMessage(wxT("%s(%s)"), name, text.c_str());
1284 }
1285
1286 // avoid repetition
1287 #define TREE_EVENT_HANDLER(name)                                 \
1288 void MyTreeCtrl::name(wxTreeEvent& event)                        \
1289 {                                                                \
1290     LogEvent(wxT(#name), event);                                  \
1291     SetLastItem(wxTreeItemId());                                 \
1292     event.Skip();                                                \
1293 }
1294
1295 TREE_EVENT_HANDLER(OnBeginRDrag)
1296 TREE_EVENT_HANDLER(OnDeleteItem)
1297 TREE_EVENT_HANDLER(OnGetInfo)
1298 TREE_EVENT_HANDLER(OnSetInfo)
1299 TREE_EVENT_HANDLER(OnItemExpanded)
1300 TREE_EVENT_HANDLER(OnItemExpanding)
1301 TREE_EVENT_HANDLER(OnItemCollapsed)
1302 TREE_EVENT_HANDLER(OnSelChanged)
1303 TREE_EVENT_HANDLER(OnSelChanging)
1304
1305 #undef TREE_EVENT_HANDLER
1306
1307 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
1308 {
1309     wxString key;
1310     long keycode = event.GetKeyCode();
1311     {
1312         switch ( keycode )
1313         {
1314             case WXK_BACK: key = wxT("BACK"); break;
1315             case WXK_TAB: key = wxT("TAB"); break;
1316             case WXK_RETURN: key = wxT("RETURN"); break;
1317             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
1318             case WXK_SPACE: key = wxT("SPACE"); break;
1319             case WXK_DELETE: key = wxT("DELETE"); break;
1320             case WXK_START: key = wxT("START"); break;
1321             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
1322             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
1323             case WXK_CANCEL: key = wxT("CANCEL"); break;
1324             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
1325             case WXK_CLEAR: key = wxT("CLEAR"); break;
1326             case WXK_SHIFT: key = wxT("SHIFT"); break;
1327             case WXK_ALT: key = wxT("ALT"); break;
1328             case WXK_CONTROL: key = wxT("CONTROL"); break;
1329             case WXK_MENU: key = wxT("MENU"); break;
1330             case WXK_PAUSE: key = wxT("PAUSE"); break;
1331             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
1332             case WXK_END: key = wxT("END"); break;
1333             case WXK_HOME: key = wxT("HOME"); break;
1334             case WXK_LEFT: key = wxT("LEFT"); break;
1335             case WXK_UP: key = wxT("UP"); break;
1336             case WXK_RIGHT: key = wxT("RIGHT"); break;
1337             case WXK_DOWN: key = wxT("DOWN"); break;
1338             case WXK_SELECT: key = wxT("SELECT"); break;
1339             case WXK_PRINT: key = wxT("PRINT"); break;
1340             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
1341             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
1342             case WXK_INSERT: key = wxT("INSERT"); break;
1343             case WXK_HELP: key = wxT("HELP"); break;
1344             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
1345             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
1346             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
1347             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
1348             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
1349             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
1350             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
1351             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
1352             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
1353             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
1354             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
1355             case WXK_ADD: key = wxT("ADD"); break;
1356             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
1357             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
1358             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
1359             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
1360             case WXK_F1: key = wxT("F1"); break;
1361             case WXK_F2: key = wxT("F2"); break;
1362             case WXK_F3: key = wxT("F3"); break;
1363             case WXK_F4: key = wxT("F4"); break;
1364             case WXK_F5: key = wxT("F5"); break;
1365             case WXK_F6: key = wxT("F6"); break;
1366             case WXK_F7: key = wxT("F7"); break;
1367             case WXK_F8: key = wxT("F8"); break;
1368             case WXK_F9: key = wxT("F9"); break;
1369             case WXK_F10: key = wxT("F10"); break;
1370             case WXK_F11: key = wxT("F11"); break;
1371             case WXK_F12: key = wxT("F12"); break;
1372             case WXK_F13: key = wxT("F13"); break;
1373             case WXK_F14: key = wxT("F14"); break;
1374             case WXK_F15: key = wxT("F15"); break;
1375             case WXK_F16: key = wxT("F16"); break;
1376             case WXK_F17: key = wxT("F17"); break;
1377             case WXK_F18: key = wxT("F18"); break;
1378             case WXK_F19: key = wxT("F19"); break;
1379             case WXK_F20: key = wxT("F20"); break;
1380             case WXK_F21: key = wxT("F21"); break;
1381             case WXK_F22: key = wxT("F22"); break;
1382             case WXK_F23: key = wxT("F23"); break;
1383             case WXK_F24: key = wxT("F24"); break;
1384             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
1385             case WXK_SCROLL: key = wxT("SCROLL"); break;
1386             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
1387             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
1388             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
1389             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
1390             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
1391             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
1392             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1393             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1394             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1395             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1396             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1397             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1398             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1399             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1400             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1401             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1402             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1403             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1404             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1405             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1406             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1407             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1408             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1409             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1410             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1411             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1412
1413             default:
1414             {
1415                if ( keycode < 128 && wxIsprint((int)keycode) )
1416                    key.Printf(wxT("'%c'"), (char)keycode);
1417                else if ( keycode > 0 && keycode < 27 )
1418                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1419                else
1420                    key.Printf(wxT("unknown (%ld)"), keycode);
1421             }
1422         }
1423     }
1424
1425     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1426                   name,
1427                   key.c_str(),
1428                   event.ControlDown() ? wxT('C') : wxT('-'),
1429                   event.AltDown() ? wxT('A') : wxT('-'),
1430                   event.ShiftDown() ? wxT('S') : wxT('-'),
1431                   event.MetaDown() ? wxT('M') : wxT('-'));
1432 }
1433
1434 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1435 {
1436     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1437
1438     event.Skip();
1439 }
1440
1441 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1442 {
1443     // need to explicitly allow drag
1444     if ( event.GetItem() != GetRootItem() )
1445     {
1446         m_draggedItem = event.GetItem();
1447
1448         wxPoint clientpt = event.GetPoint();
1449         wxPoint screenpt = ClientToScreen(clientpt);
1450
1451         wxLogMessage(wxT("OnBeginDrag: started dragging %s at screen coords (%i,%i)"),
1452                      GetItemText(m_draggedItem).c_str(),
1453                      screenpt.x, screenpt.y);
1454
1455         event.Allow();
1456     }
1457     else
1458     {
1459         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1460     }
1461 }
1462
1463 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1464 {
1465     wxTreeItemId itemSrc = m_draggedItem,
1466                  itemDst = event.GetItem();
1467     m_draggedItem = (wxTreeItemId)0l;
1468
1469     // where to copy the item?
1470     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1471     {
1472         // copy to the parent then
1473         itemDst = GetItemParent(itemDst);
1474     }
1475
1476     if ( !itemDst.IsOk() )
1477     {
1478         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1479
1480         return;
1481     }
1482
1483     wxString text = GetItemText(itemSrc);
1484     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1485                  text.c_str(), GetItemText(itemDst).c_str());
1486
1487     // just do append here - we could also insert it just before/after the item
1488     // on which it was dropped, but this requires slightly more work... we also
1489     // completely ignore the client data and icon of the old item but could
1490     // copy them as well.
1491     //
1492     // Finally, we only copy one item here but we might copy the entire tree if
1493     // we were dragging a folder.
1494     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1495     wxTreeItemId id = AppendItem(itemDst, text, image);
1496
1497     if ( wxGetApp().ShowStates() )
1498         SetItemState(id, GetItemState(itemSrc));
1499 }
1500
1501 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1502 {
1503     wxLogMessage(wxT("OnBeginLabelEdit"));
1504
1505     // for testing, prevent this item's label editing
1506     wxTreeItemId itemId = event.GetItem();
1507     if ( IsTestItem(itemId) )
1508     {
1509         wxMessageBox(wxT("You can't edit this item."));
1510
1511         event.Veto();
1512     }
1513     else if ( itemId == GetRootItem() )
1514     {
1515         // test that it is possible to change the text of the item being edited
1516         SetItemText(itemId, wxT("Editing root item"));
1517     }
1518 }
1519
1520 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1521 {
1522     wxLogMessage(wxT("OnEndLabelEdit"));
1523
1524     // don't allow anything except letters in the labels
1525     if ( !event.GetLabel().IsWord() )
1526     {
1527         wxMessageBox(wxT("The new label should be a single word."));
1528
1529         event.Veto();
1530     }
1531 }
1532
1533 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1534 {
1535     wxLogMessage(wxT("OnItemCollapsing"));
1536
1537     // for testing, prevent the user from collapsing the first child folder
1538     wxTreeItemId itemId = event.GetItem();
1539     if ( IsTestItem(itemId) )
1540     {
1541         wxMessageBox(wxT("You can't collapse this item."));
1542
1543         event.Veto();
1544     }
1545 }
1546
1547 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1548 {
1549     // show some info about this item
1550     wxTreeItemId itemId = event.GetItem();
1551     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1552
1553     if ( item != NULL )
1554     {
1555         item->ShowInfo(this);
1556     }
1557
1558     wxLogMessage(wxT("OnItemActivated"));
1559 }
1560
1561 void MyTreeCtrl::OnItemStateClick(wxTreeEvent& event)
1562 {
1563     // toggle item state
1564     wxTreeItemId itemId = event.GetItem();
1565     DoToggleState(itemId);
1566
1567     wxLogMessage(wxT("Item \"%s\" state changed to %d"),
1568                  GetItemText(itemId), GetItemState(itemId));
1569 }
1570
1571 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1572 {
1573     wxTreeItemId itemId = event.GetItem();
1574     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1575                                          : NULL;
1576     wxPoint clientpt = event.GetPoint();
1577     wxPoint screenpt = ClientToScreen(clientpt);
1578
1579     wxLogMessage(wxT("OnItemMenu for item \"%s\" at screen coords (%i, %i)"),
1580                  item ? item->GetDesc() : wxT(""), screenpt.x, screenpt.y);
1581
1582     ShowMenu(itemId, clientpt);
1583     event.Skip();
1584 }
1585
1586 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1587 {
1588     wxPoint pt = event.GetPosition();
1589
1590     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1591
1592     event.Skip();
1593 }
1594
1595 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1596 {
1597     wxString title;
1598     if ( id.IsOk() )
1599     {
1600         title << wxT("Menu for ") << GetItemText(id);
1601     }
1602     else
1603     {
1604         title = wxT("Menu for no particular item");
1605     }
1606
1607 #if wxUSE_MENUS
1608     wxMenu menu(title);
1609     menu.Append(TreeTest_About, wxT("&About..."));
1610     menu.AppendSeparator();
1611     menu.Append(TreeTest_Highlight, wxT("&Highlight item"));
1612     menu.Append(TreeTest_Dump, wxT("&Dump"));
1613
1614     PopupMenu(&menu, pt);
1615 #endif // wxUSE_MENUS
1616 }
1617
1618 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1619 {
1620     wxTreeItemId itemId = event.GetItem();
1621     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1622                                          : NULL;
1623
1624     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1625                                                         : wxT(""));
1626
1627     event.Skip();
1628 }
1629
1630 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1631 {
1632     wxLogMessage(wxT("Right mouse button down"));
1633
1634     event.Skip();
1635 }
1636
1637 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1638 {
1639     wxLogMessage(wxT("Right mouse button up"));
1640
1641     event.Skip();
1642 }
1643
1644 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1645 {
1646     wxTreeItemId id = HitTest(event.GetPosition());
1647     if ( !id )
1648     {
1649         wxLogMessage(wxT("No item under mouse"));
1650     }
1651     else
1652     {
1653         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1654         if ( item )
1655         {
1656             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1657         }
1658     }
1659
1660     event.Skip();
1661 }
1662
1663 static inline const wxChar *Bool2String(bool b)
1664 {
1665     return b ? wxT("") : wxT("not ");
1666 }
1667
1668 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1669 {
1670     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1671                  wxT("%u children (%u immediately under this item)."),
1672                  m_desc.c_str(),
1673                  Bool2String(tree->IsSelected(GetId())),
1674                  Bool2String(tree->IsExpanded(GetId())),
1675                  Bool2String(tree->IsBold(GetId())),
1676                  unsigned(tree->GetChildrenCount(GetId())),
1677                  unsigned(tree->GetChildrenCount(GetId(), false)));
1678 }