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