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