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