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                 wxT("Root/last item is %svisible/%svisible"),
 423                 m_treeCtrl->IsVisible(idRoot) ? wxT("") : wxT("not "),
 424                 idLast.IsOk() && m_treeCtrl->IsVisible(idLast)
 425                     ? wxT("") : wxT("not "));
 426         }
 427         else
 428             status = wxT("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->GetFocusedItem();
 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->GetFocusedItem();
 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->GetFocusedItem();
 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->GetFocusedItem();
 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->GetFocusedItem();
 535
 536     CHECK_ITEM( id );
 537
 538     wxRect r;
 539     if ( !m_treeCtrl->GetBoundingRect(id, r, true /* text, not full row */) )
 540     {
 541         wxLogMessage(wxT("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->GetFocusedItem();
 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->GetFocusedItem());
 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->GetFocusedItem();
 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->GetFocusedItem();
 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->GetFocusedItem();
 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     {
 767         m_treeCtrl->SetSpacing( indent+5 );
 768         m_treeCtrl->Refresh();
 769     }
 770 }
 771
 772 void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event))
 773 {
 774     unsigned int indent = m_treeCtrl->GetSpacing();
 775     if (indent > 10)
 776     {
 777         m_treeCtrl->SetSpacing( indent-5 );
 778         m_treeCtrl->Refresh();
 779     }
 780 }
 781
 782 void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
 783 {
 784     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 785
 786     CHECK_ITEM( item );
 787
 788     m_treeCtrl->DoToggleIcon(item);
 789 }
 790
 791 void MyFrame::OnToggleState(wxCommandEvent& WXUNUSED(event))
 792 {
 793     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 794
 795     CHECK_ITEM( item );
 796
 797     m_treeCtrl->DoToggleState(item);
 798 }
 799
 800 void MyFrame::DoShowFirstOrLast(TreeFunc0_t pfn, const wxString& label)
 801 {
 802     const wxTreeItemId item = (m_treeCtrl->*pfn)();
 803
 804     if ( !item.IsOk() )
 805     {
 806         wxLogMessage("There is no %s item", label);
 807     }
 808     else
 809     {
 810         wxLogMessage("The %s item is \"%s\"",
 811                      label, m_treeCtrl->GetItemText(item));
 812     }
 813 }
 814
 815 void MyFrame::DoShowRelativeItem(TreeFunc1_t pfn, const wxString& label)
 816 {
 817     wxTreeItemId item = m_treeCtrl->GetFocusedItem();
 818
 819     CHECK_ITEM( item );
 820
 821     if ((pfn == (TreeFunc1_t) &wxTreeCtrl::GetPrevVisible
 822          || pfn == (TreeFunc1_t) &wxTreeCtrl::GetNextVisible)
 823         && !m_treeCtrl->IsVisible(item))
 824     {
 825         wxLogMessage("The selected item must be visible.");
 826         return;
 827     }
 828
 829     wxTreeItemId new_item = (m_treeCtrl->*pfn)(item);
 830
 831     if ( !new_item.IsOk() )
 832     {
 833         wxLogMessage("There is no %s item", label);
 834     }
 835     else
 836     {
 837         wxLogMessage("The %s item is \"%s\"",
 838                      label, m_treeCtrl->GetItemText(new_item));
 839     }
 840 }
 841
 842 void MyFrame::OnScrollTo(wxCommandEvent& WXUNUSED(event))
 843 {
 844     // scroll to the last but one top level child
 845     wxTreeItemId item = m_treeCtrl->GetPrevSibling(
 846                             m_treeCtrl->GetLastChild(
 847                                 m_treeCtrl->GetRootItem()));
 848     CHECK_ITEM( item );
 849
 850     m_treeCtrl->ScrollTo(item);
 851 }
 852
 853 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 854 {
 855     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
 856     if ( col.Ok() )
 857         m_treeCtrl->SetForegroundColour(col);
 858 }
 859
 860 void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event))
 861 {
 862     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour());
 863     if ( col.Ok() )
 864         m_treeCtrl->SetBackgroundColour(col);
 865 }
 866
 867 // MyTreeCtrl implementation
 868 #if USE_GENERIC_TREECTRL
 869 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl)
 870 #else
 871 IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 872 #endif
 873
 874 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
 875                        const wxPoint& pos, const wxSize& size,
 876                        long style)
 877           : wxTreeCtrl(parent, id, pos, size, style),
 878             m_alternateImages(false),
 879             m_alternateStates(false)
 880 {
 881     m_reverseSort = false;
 882
 883     CreateImageList();
 884     CreateStateImageList();
 885
 886     // Add some items to the tree
 887     AddTestItemsToTree(NUM_CHILDREN_PER_LEVEL, NUM_LEVELS);
 888 }
 889
 890 void MyTreeCtrl::CreateImageList(int size)
 891 {
 892     if ( size == -1 )
 893     {
 894         SetImageList(NULL);
 895         return;
 896     }
 897     if ( size == 0 )
 898         size = m_imageSize;
 899     else
 900         m_imageSize = size;
 901
 902     // Make an image list containing small icons
 903     wxImageList *images = new wxImageList(size, size, true);
 904
 905     // should correspond to TreeCtrlIcon_xxx enum
 906     wxBusyCursor wait;
 907     wxIcon icons[5];
 908
 909     if (m_alternateImages)
 910     {
 911         icons[TreeCtrlIcon_File] = wxIcon(icon1_xpm);
 912         icons[TreeCtrlIcon_FileSelected] = wxIcon(icon2_xpm);
 913         icons[TreeCtrlIcon_Folder] = wxIcon(icon3_xpm);
 914         icons[TreeCtrlIcon_FolderSelected] = wxIcon(icon4_xpm);
 915         icons[TreeCtrlIcon_FolderOpened] = wxIcon(icon5_xpm);
 916     }
 917     else
 918     {
 919         wxSize iconSize(size, size);
 920
 921         icons[TreeCtrlIcon_File] =
 922         icons[TreeCtrlIcon_FileSelected] = wxArtProvider::GetIcon(wxART_NORMAL_FILE, wxART_LIST, iconSize);
 923         icons[TreeCtrlIcon_Folder] =
 924         icons[TreeCtrlIcon_FolderSelected] =
 925         icons[TreeCtrlIcon_FolderOpened] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);
 926     }
 927
 928     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 929     {
 930         int sizeOrig = icons[0].GetWidth();
 931         if ( size == sizeOrig )
 932         {
 933             images->Add(icons[i]);
 934         }
 935         else
 936         {
 937             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
 938         }
 939     }
 940
 941     AssignImageList(images);
 942 }
 943
 944 void MyTreeCtrl::CreateStateImageList(bool del)
 945 {
 946     if ( del )
 947     {
 948         SetStateImageList(NULL);
 949         return;
 950     }
 951
 952     wxImageList *states;
 953     wxBusyCursor wait;
 954
 955     if (m_alternateStates)
 956     {
 957         wxIcon icons[5];
 958         icons[0] = wxIcon(state1_xpm);  // yellow
 959         icons[1] = wxIcon(state2_xpm);  // green
 960         icons[2] = wxIcon(state3_xpm);  // red
 961         icons[3] = wxIcon(state4_xpm);  // blue
 962         icons[4] = wxIcon(state5_xpm);  // black
 963
 964         int width  = icons[0].GetWidth(),
 965             height = icons[0].GetHeight();
 966
 967         // Make an state image list containing small icons
 968         states = new wxImageList(width, height, true);
 969
 970         for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 971             states->Add(icons[i]);
 972     }
 973     else
 974     {
 975         wxIcon icons[2];
 976         icons[0] = wxIcon(unchecked_xpm);
 977         icons[1] = wxIcon(checked_xpm);
 978
 979         int width  = icons[0].GetWidth(),
 980             height = icons[0].GetHeight();
 981
 982         // Make an state image list containing small icons
 983         states = new wxImageList(width, height, true);
 984
 985         for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
 986             states->Add(icons[i]);
 987     }
 988
 989     AssignStateImageList(states);
 990 }
 991
 992 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
 993 void MyTreeCtrl::CreateButtonsImageList(int size)
 994 {
 995     if ( size == -1 )
 996     {
 997         SetButtonsImageList(NULL);
 998         return;
 999     }
1000
1001     // Make an image list containing small icons
1002     wxImageList *images = new wxImageList(size, size, true);
1003
1004     // should correspond to TreeCtrlIcon_xxx enum
1005     wxBusyCursor wait;
1006     wxIcon icons[4];
1007
1008     if (m_alternateImages)
1009     {
1010         icons[0] = wxIcon(icon3_xpm);   // closed
1011         icons[1] = wxIcon(icon3_xpm);   // closed, selected
1012         icons[2] = wxIcon(icon5_xpm);   // open
1013         icons[3] = wxIcon(icon5_xpm);   // open, selected
1014     }
1015     else
1016     {
1017         wxSize iconSize(size, size);
1018
1019         icons[0] =                                                                 // closed
1020         icons[1] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);     // closed, selected
1021         icons[2] =                                                                 // open
1022         icons[3] = wxArtProvider::GetIcon(wxART_FOLDER_OPEN, wxART_LIST, iconSize);// open, selected
1023     }
1024
1025    for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
1026     {
1027         int sizeOrig = icons[i].GetWidth();
1028         if ( size == sizeOrig )
1029         {
1030             images->Add(icons[i]);
1031         }
1032         else
1033         {
1034             images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size)));
1035         }
1036     }
1037
1038     AssignButtonsImageList(images);
1039 #else
1040 void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
1041 {
1042 #endif
1043 }
1044
1045 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
1046                                const wxTreeItemId& item2)
1047 {
1048     if ( m_reverseSort )
1049     {
1050         // just exchange 1st and 2nd items
1051         return wxTreeCtrl::OnCompareItems(item2, item1);
1052     }
1053     else
1054     {
1055         return wxTreeCtrl::OnCompareItems(item1, item2);
1056     }
1057 }
1058
1059 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
1060                                      size_t numChildren,
1061                                      size_t depth,
1062                                      size_t folder)
1063 {
1064     if ( depth > 0 )
1065     {
1066         bool hasChildren = depth > 1;
1067
1068         wxString str;
1069         for ( size_t n = 0; n < numChildren; n++ )
1070         {
1071             // at depth 1 elements won't have any more children
1072             if ( hasChildren )
1073                 str.Printf(wxT("%s child %u"), wxT("Folder"), unsigned(n + 1));
1074             else
1075                 str.Printf(wxT("%s child %u.%u"), wxT("File"), unsigned(folder), unsigned(n + 1));
1076
1077             // here we pass to AppendItem() normal and selected item images (we
1078             // suppose that selected image follows the normal one in the enum)
1079             int image, imageSel;
1080             if ( wxGetApp().ShowImages() )
1081             {
1082                 image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder;
1083                 imageSel = image + 1;
1084             }
1085             else
1086             {
1087                 image = imageSel = -1;
1088             }
1089             wxTreeItemId id = AppendItem(idParent, str, image, imageSel,
1090                                          new MyTreeItemData(str));
1091
1092             if ( wxGetApp().ShowStates() )
1093                 SetItemState(id, 0);
1094
1095             // and now we also set the expanded one (only for the folders)
1096             if ( hasChildren && wxGetApp().ShowImages() )
1097             {
1098                 SetItemImage(id, TreeCtrlIcon_FolderOpened,
1099                              wxTreeItemIcon_Expanded);
1100             }
1101
1102             // remember the last child for OnEnsureVisible()
1103             if ( !hasChildren && n == numChildren - 1 )
1104             {
1105                 m_lastItem = id;
1106             }
1107
1108             AddItemsRecursively(id, numChildren, depth - 1, n + 1);
1109         }
1110     }
1111     //else: done!
1112 }
1113
1114 void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
1115                                     size_t depth)
1116 {
1117     int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1;
1118     wxTreeItemId rootId = AddRoot(wxT("Root"),
1119                                   image, image,
1120                                   new MyTreeItemData(wxT("Root item")));
1121     if ( !HasFlag(wxTR_HIDE_ROOT) && image != -1 )
1122     {
1123         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
1124     }
1125
1126     AddItemsRecursively(rootId, numChildren, depth, 0);
1127
1128     // set some colours/fonts for testing
1129     if ( !HasFlag(wxTR_HIDE_ROOT) )
1130         SetItemFont(rootId, *wxITALIC_FONT);
1131
1132     wxTreeItemIdValue cookie;
1133     wxTreeItemId id = GetFirstChild(rootId, cookie);
1134     SetItemTextColour(id, *wxBLUE);
1135
1136     id = GetNextChild(rootId, cookie);
1137     if ( id )
1138         id = GetNextChild(rootId, cookie);
1139     if ( id )
1140     {
1141         SetItemTextColour(id, *wxRED);
1142         SetItemBackgroundColour(id, *wxLIGHT_GREY);
1143     }
1144 }
1145
1146 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent,
1147                                      wxTreeItemIdValue cookie)
1148 {
1149     wxTreeItemId id;
1150
1151     if ( !cookie )
1152         id = GetFirstChild(idParent, cookie);
1153     else
1154         id = GetNextChild(idParent, cookie);
1155
1156     if ( !id.IsOk() )
1157         return;
1158
1159     wxString text = GetItemText(id);
1160     wxLogMessage(text);
1161
1162     if (ItemHasChildren(id))
1163         GetItemsRecursively(id);
1164
1165     GetItemsRecursively(idParent, cookie);
1166 }
1167
1168 void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
1169 {
1170     int image = GetItemImage(item) == TreeCtrlIcon_Folder
1171                     ? TreeCtrlIcon_File
1172                     : TreeCtrlIcon_Folder;
1173     SetItemImage(item, image, wxTreeItemIcon_Normal);
1174
1175     image = GetItemImage(item, wxTreeItemIcon_Selected) == TreeCtrlIcon_FolderSelected
1176                     ? TreeCtrlIcon_FileSelected
1177                     : TreeCtrlIcon_FolderSelected;
1178     SetItemImage(item, image, wxTreeItemIcon_Selected);
1179 }
1180
1181 void MyTreeCtrl::DoToggleState(const wxTreeItemId& item)
1182 {
1183     if ( m_alternateStates )
1184     {
1185         // sets random state unlike current
1186         int state = GetItemState(item);
1187         int nState;
1188
1189         srand (time(NULL));
1190         do {
1191             nState = rand() % GetStateImageList()->GetImageCount();
1192         } while (nState == state);
1193
1194         SetItemState(item, nState);
1195     }
1196     else
1197     {
1198         // we have only 2 checkbox states, so next state will be reversed
1199         SetItemState(item, wxTREE_ITEMSTATE_NEXT);
1200     }
1201 }
1202
1203 void MyTreeCtrl::DoResetBrokenStateImages(const wxTreeItemId& idParent,
1204                                           wxTreeItemIdValue cookie, int state)
1205 {
1206     wxTreeItemId id;
1207
1208     if ( !cookie )
1209         id = GetFirstChild(idParent, cookie);
1210     else
1211         id = GetNextChild(idParent, cookie);
1212
1213     if ( !id.IsOk() )
1214         return;
1215
1216     int curState = GetItemState(id);
1217     if ( curState != wxTREE_ITEMSTATE_NONE && curState > state )
1218         SetItemState(id, state);
1219
1220     if (ItemHasChildren(id))
1221         DoResetBrokenStateImages(id, 0, state);
1222
1223     DoResetBrokenStateImages(idParent, cookie, state);
1224 }
1225
1226 void MyTreeCtrl::LogEvent(const wxChar *name, const wxTreeEvent& event)
1227 {
1228     wxTreeItemId item = event.GetItem();
1229     wxString text;
1230     if ( item.IsOk() )
1231         text << wxT('"') << GetItemText(item).c_str() << wxT('"');
1232     else
1233         text = wxT("invalid item");
1234     wxLogMessage(wxT("%s(%s)"), name, text.c_str());
1235 }
1236
1237 // avoid repetition
1238 #define TREE_EVENT_HANDLER(name)                                 \
1239 void MyTreeCtrl::name(wxTreeEvent& event)                        \
1240 {                                                                \
1241     LogEvent(wxT(#name), event);                                  \
1242     SetLastItem(wxTreeItemId());                                 \
1243     event.Skip();                                                \
1244 }
1245
1246 TREE_EVENT_HANDLER(OnBeginRDrag)
1247 TREE_EVENT_HANDLER(OnDeleteItem)
1248 TREE_EVENT_HANDLER(OnGetInfo)
1249 TREE_EVENT_HANDLER(OnSetInfo)
1250 TREE_EVENT_HANDLER(OnItemExpanded)
1251 TREE_EVENT_HANDLER(OnItemExpanding)
1252 TREE_EVENT_HANDLER(OnItemCollapsed)
1253 TREE_EVENT_HANDLER(OnSelChanged)
1254 TREE_EVENT_HANDLER(OnSelChanging)
1255
1256 #undef TREE_EVENT_HANDLER
1257
1258 void LogKeyEvent(const wxChar *name, const wxKeyEvent& event)
1259 {
1260     wxString key;
1261     long keycode = event.GetKeyCode();
1262     {
1263         switch ( keycode )
1264         {
1265             case WXK_BACK: key = wxT("BACK"); break;
1266             case WXK_TAB: key = wxT("TAB"); break;
1267             case WXK_RETURN: key = wxT("RETURN"); break;
1268             case WXK_ESCAPE: key = wxT("ESCAPE"); break;
1269             case WXK_SPACE: key = wxT("SPACE"); break;
1270             case WXK_DELETE: key = wxT("DELETE"); break;
1271             case WXK_START: key = wxT("START"); break;
1272             case WXK_LBUTTON: key = wxT("LBUTTON"); break;
1273             case WXK_RBUTTON: key = wxT("RBUTTON"); break;
1274             case WXK_CANCEL: key = wxT("CANCEL"); break;
1275             case WXK_MBUTTON: key = wxT("MBUTTON"); break;
1276             case WXK_CLEAR: key = wxT("CLEAR"); break;
1277             case WXK_SHIFT: key = wxT("SHIFT"); break;
1278             case WXK_ALT: key = wxT("ALT"); break;
1279             case WXK_CONTROL: key = wxT("CONTROL"); break;
1280             case WXK_MENU: key = wxT("MENU"); break;
1281             case WXK_PAUSE: key = wxT("PAUSE"); break;
1282             case WXK_CAPITAL: key = wxT("CAPITAL"); break;
1283             case WXK_END: key = wxT("END"); break;
1284             case WXK_HOME: key = wxT("HOME"); break;
1285             case WXK_LEFT: key = wxT("LEFT"); break;
1286             case WXK_UP: key = wxT("UP"); break;
1287             case WXK_RIGHT: key = wxT("RIGHT"); break;
1288             case WXK_DOWN: key = wxT("DOWN"); break;
1289             case WXK_SELECT: key = wxT("SELECT"); break;
1290             case WXK_PRINT: key = wxT("PRINT"); break;
1291             case WXK_EXECUTE: key = wxT("EXECUTE"); break;
1292             case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break;
1293             case WXK_INSERT: key = wxT("INSERT"); break;
1294             case WXK_HELP: key = wxT("HELP"); break;
1295             case WXK_NUMPAD0: key = wxT("NUMPAD0"); break;
1296             case WXK_NUMPAD1: key = wxT("NUMPAD1"); break;
1297             case WXK_NUMPAD2: key = wxT("NUMPAD2"); break;
1298             case WXK_NUMPAD3: key = wxT("NUMPAD3"); break;
1299             case WXK_NUMPAD4: key = wxT("NUMPAD4"); break;
1300             case WXK_NUMPAD5: key = wxT("NUMPAD5"); break;
1301             case WXK_NUMPAD6: key = wxT("NUMPAD6"); break;
1302             case WXK_NUMPAD7: key = wxT("NUMPAD7"); break;
1303             case WXK_NUMPAD8: key = wxT("NUMPAD8"); break;
1304             case WXK_NUMPAD9: key = wxT("NUMPAD9"); break;
1305             case WXK_MULTIPLY: key = wxT("MULTIPLY"); break;
1306             case WXK_ADD: key = wxT("ADD"); break;
1307             case WXK_SEPARATOR: key = wxT("SEPARATOR"); break;
1308             case WXK_SUBTRACT: key = wxT("SUBTRACT"); break;
1309             case WXK_DECIMAL: key = wxT("DECIMAL"); break;
1310             case WXK_DIVIDE: key = wxT("DIVIDE"); break;
1311             case WXK_F1: key = wxT("F1"); break;
1312             case WXK_F2: key = wxT("F2"); break;
1313             case WXK_F3: key = wxT("F3"); break;
1314             case WXK_F4: key = wxT("F4"); break;
1315             case WXK_F5: key = wxT("F5"); break;
1316             case WXK_F6: key = wxT("F6"); break;
1317             case WXK_F7: key = wxT("F7"); break;
1318             case WXK_F8: key = wxT("F8"); break;
1319             case WXK_F9: key = wxT("F9"); break;
1320             case WXK_F10: key = wxT("F10"); break;
1321             case WXK_F11: key = wxT("F11"); break;
1322             case WXK_F12: key = wxT("F12"); break;
1323             case WXK_F13: key = wxT("F13"); break;
1324             case WXK_F14: key = wxT("F14"); break;
1325             case WXK_F15: key = wxT("F15"); break;
1326             case WXK_F16: key = wxT("F16"); break;
1327             case WXK_F17: key = wxT("F17"); break;
1328             case WXK_F18: key = wxT("F18"); break;
1329             case WXK_F19: key = wxT("F19"); break;
1330             case WXK_F20: key = wxT("F20"); break;
1331             case WXK_F21: key = wxT("F21"); break;
1332             case WXK_F22: key = wxT("F22"); break;
1333             case WXK_F23: key = wxT("F23"); break;
1334             case WXK_F24: key = wxT("F24"); break;
1335             case WXK_NUMLOCK: key = wxT("NUMLOCK"); break;
1336             case WXK_SCROLL: key = wxT("SCROLL"); break;
1337             case WXK_PAGEUP: key = wxT("PAGEUP"); break;
1338             case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break;
1339             case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break;
1340             case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break;
1341             case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break;
1342             case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break;
1343             case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break;
1344             case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break;
1345             case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break;
1346             case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break;
1347             case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break;
1348             case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break;
1349             case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break;
1350             case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break;
1351             case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break;
1352             case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break;
1353             case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break;
1354             case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break;
1355             case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break;
1356             case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break;
1357             case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break;
1358             case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break;
1359             case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break;
1360             case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break;
1361             case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break;
1362             case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break;
1363
1364             default:
1365             {
1366                if ( keycode < 128 && wxIsprint((int)keycode) )
1367                    key.Printf(wxT("'%c'"), (char)keycode);
1368                else if ( keycode > 0 && keycode < 27 )
1369                    key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1);
1370                else
1371                    key.Printf(wxT("unknown (%ld)"), keycode);
1372             }
1373         }
1374     }
1375
1376     wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"),
1377                   name,
1378                   key.c_str(),
1379                   event.ControlDown() ? wxT('C') : wxT('-'),
1380                   event.AltDown() ? wxT('A') : wxT('-'),
1381                   event.ShiftDown() ? wxT('S') : wxT('-'),
1382                   event.MetaDown() ? wxT('M') : wxT('-'));
1383 }
1384
1385 void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event)
1386 {
1387     LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent());
1388
1389     event.Skip();
1390 }
1391
1392 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
1393 {
1394     // need to explicitly allow drag
1395     if ( event.GetItem() != GetRootItem() )
1396     {
1397         m_draggedItem = event.GetItem();
1398
1399         wxPoint clientpt = event.GetPoint();
1400         wxPoint screenpt = ClientToScreen(clientpt);
1401
1402         wxLogMessage(wxT("OnBeginDrag: started dragging %s at screen coords (%i,%i)"),
1403                      GetItemText(m_draggedItem).c_str(),
1404                      screenpt.x, screenpt.y);
1405
1406         event.Allow();
1407     }
1408     else
1409     {
1410         wxLogMessage(wxT("OnBeginDrag: this item can't be dragged."));
1411     }
1412 }
1413
1414 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
1415 {
1416     wxTreeItemId itemSrc = m_draggedItem,
1417                  itemDst = event.GetItem();
1418     m_draggedItem = (wxTreeItemId)0l;
1419
1420     // where to copy the item?
1421     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
1422     {
1423         // copy to the parent then
1424         itemDst = GetItemParent(itemDst);
1425     }
1426
1427     if ( !itemDst.IsOk() )
1428     {
1429         wxLogMessage(wxT("OnEndDrag: can't drop here."));
1430
1431         return;
1432     }
1433
1434     wxString text = GetItemText(itemSrc);
1435     wxLogMessage(wxT("OnEndDrag: '%s' copied to '%s'."),
1436                  text.c_str(), GetItemText(itemDst).c_str());
1437
1438     // just do append here - we could also insert it just before/after the item
1439     // on which it was dropped, but this requires slightly more work... we also
1440     // completely ignore the client data and icon of the old item but could
1441     // copy them as well.
1442     //
1443     // Finally, we only copy one item here but we might copy the entire tree if
1444     // we were dragging a folder.
1445     int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;
1446     wxTreeItemId id = AppendItem(itemDst, text, image);
1447
1448     if ( wxGetApp().ShowStates() )
1449         SetItemState(id, GetItemState(itemSrc));
1450 }
1451
1452 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event)
1453 {
1454     wxLogMessage(wxT("OnBeginLabelEdit"));
1455
1456     // for testing, prevent this item's label editing
1457     wxTreeItemId itemId = event.GetItem();
1458     if ( IsTestItem(itemId) )
1459     {
1460         wxMessageBox(wxT("You can't edit this item."));
1461
1462         event.Veto();
1463     }
1464     else if ( itemId == GetRootItem() )
1465     {
1466         // test that it is possible to change the text of the item being edited
1467         SetItemText(itemId, wxT("Editing root item"));
1468     }
1469 }
1470
1471 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event)
1472 {
1473     wxLogMessage(wxT("OnEndLabelEdit"));
1474
1475     // don't allow anything except letters in the labels
1476     if ( !event.GetLabel().IsWord() )
1477     {
1478         wxMessageBox(wxT("The new label should be a single word."));
1479
1480         event.Veto();
1481     }
1482 }
1483
1484 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event)
1485 {
1486     wxLogMessage(wxT("OnItemCollapsing"));
1487
1488     // for testing, prevent the user from collapsing the first child folder
1489     wxTreeItemId itemId = event.GetItem();
1490     if ( IsTestItem(itemId) )
1491     {
1492         wxMessageBox(wxT("You can't collapse this item."));
1493
1494         event.Veto();
1495     }
1496 }
1497
1498 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event)
1499 {
1500     // show some info about this item
1501     wxTreeItemId itemId = event.GetItem();
1502     MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);
1503
1504     if ( item != NULL )
1505     {
1506         item->ShowInfo(this);
1507     }
1508
1509     wxLogMessage(wxT("OnItemActivated"));
1510 }
1511
1512 void MyTreeCtrl::OnItemStateClick(wxTreeEvent& event)
1513 {
1514     // toggle item state
1515     wxTreeItemId itemId = event.GetItem();
1516     DoToggleState(itemId);
1517
1518     wxLogMessage(wxT("Item \"%s\" state changed to %d"),
1519                  GetItemText(itemId), GetItemState(itemId));
1520 }
1521
1522 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
1523 {
1524     wxTreeItemId itemId = event.GetItem();
1525     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1526                                          : NULL;
1527     wxPoint clientpt = event.GetPoint();
1528     wxPoint screenpt = ClientToScreen(clientpt);
1529
1530     wxLogMessage(wxT("OnItemMenu for item \"%s\" at screen coords (%i, %i)"),
1531                  item ? item->GetDesc() : wxT(""), screenpt.x, screenpt.y);
1532
1533     ShowMenu(itemId, clientpt);
1534     event.Skip();
1535 }
1536
1537 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
1538 {
1539     wxPoint pt = event.GetPosition();
1540
1541     wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
1542
1543     event.Skip();
1544 }
1545
1546 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
1547 {
1548     wxString title;
1549     if ( id.IsOk() )
1550     {
1551         title << wxT("Menu for ") << GetItemText(id);
1552     }
1553     else
1554     {
1555         title = wxT("Menu for no particular item");
1556     }
1557
1558 #if wxUSE_MENUS
1559     wxMenu menu(title);
1560     menu.Append(TreeTest_About, wxT("&About..."));
1561     menu.AppendSeparator();
1562     menu.Append(TreeTest_Highlight, wxT("&Highlight item"));
1563     menu.Append(TreeTest_Dump, wxT("&Dump"));
1564
1565     PopupMenu(&menu, pt);
1566 #endif // wxUSE_MENUS
1567 }
1568
1569 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event)
1570 {
1571     wxTreeItemId itemId = event.GetItem();
1572     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
1573                                          : NULL;
1574
1575     wxLogMessage(wxT("Item \"%s\" right clicked"), item ? item->GetDesc()
1576                                                         : wxT(""));
1577
1578     event.Skip();
1579 }
1580
1581 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event)
1582 {
1583     wxLogMessage(wxT("Right mouse button down"));
1584
1585     event.Skip();
1586 }
1587
1588 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event)
1589 {
1590     wxLogMessage(wxT("Right mouse button up"));
1591
1592     event.Skip();
1593 }
1594
1595 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event)
1596 {
1597     wxTreeItemId id = HitTest(event.GetPosition());
1598     if ( !id )
1599     {
1600         wxLogMessage(wxT("No item under mouse"));
1601     }
1602     else
1603     {
1604         MyTreeItemData *item = (MyTreeItemData *)GetItemData(id);
1605         if ( item )
1606         {
1607             wxLogMessage(wxT("Item '%s' under mouse"), item->GetDesc());
1608         }
1609     }
1610
1611     event.Skip();
1612 }
1613
1614 static inline const wxChar *Bool2String(bool b)
1615 {
1616     return b ? wxT("") : wxT("not ");
1617 }
1618
1619 void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
1620 {
1621     wxLogMessage(wxT("Item '%s': %sselected, %sexpanded, %sbold,\n")
1622                  wxT("%u children (%u immediately under this item)."),
1623                  m_desc.c_str(),
1624                  Bool2String(tree->IsSelected(GetId())),
1625                  Bool2String(tree->IsExpanded(GetId())),
1626                  Bool2String(tree->IsBold(GetId())),
1627                  unsigned(tree->GetChildrenCount(GetId())),
1628                  unsigned(tree->GetChildrenCount(GetId(), false)));
1629 }