src/gtk/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        notebook.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "notebook.h"
  12 #endif
  13
  14 #include "wx/notebook.h"
  15
  16 #if wxUSE_NOTEBOOK
  17
  18 #include "wx/panel.h"
  19 #include "wx/utils.h"
  20 #include "wx/imaglist.h"
  21 #include "wx/intl.h"
  22 #include "wx/log.h"
  23
  24 #include <gdk/gdk.h>
  25 #include <gtk/gtk.h>
  26 #include "wx/gtk/win_gtk.h"
  27 #include <gdk/gdkkeysyms.h>
  28
  29 // ----------------------------------------------------------------------------
  30 // events
  31 // ----------------------------------------------------------------------------
  32
  33 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  34 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  35
  36 //-----------------------------------------------------------------------------
  37 // idle system
  38 //-----------------------------------------------------------------------------
  39
  40 extern void wxapp_install_idle_handler();
  41 extern bool g_isIdle;
  42
  43 //-----------------------------------------------------------------------------
  44 // data
  45 //-----------------------------------------------------------------------------
  46
  47 extern bool   g_blockEventsOnDrag;
  48
  49 //-----------------------------------------------------------------------------
  50 // debug
  51 //-----------------------------------------------------------------------------
  52
  53 #ifdef __WXDEBUG__
  54
  55 extern void debug_focus_in( GtkWidget* widget, const wxChar* name, const wxChar *window );
  56
  57 #endif
  58
  59 //-----------------------------------------------------------------------------
  60 // wxGtkNotebookPage
  61 //-----------------------------------------------------------------------------
  62
  63 class wxGtkNotebookPage: public wxObject
  64 {
  65 public:
  66   wxGtkNotebookPage()
  67   {
  68     m_text = "";
  69     m_image = -1;
  70     m_page = (GtkNotebookPage *) NULL;
  71     m_client = (wxNotebookPage *) NULL;
  72     m_box = (GtkWidget *) NULL;
  73   }
  74
  75   wxString           m_text;
  76   int                m_image;
  77   GtkNotebookPage   *m_page;
  78   GtkLabel          *m_label;
  79   wxNotebookPage    *m_client;
  80   GtkWidget         *m_box;     // in which the label and image are packed
  81 };
  82
  83 //-----------------------------------------------------------------------------
  84 // "switch_page"
  85 //-----------------------------------------------------------------------------
  86
  87 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  88                                               GtkNotebookPage *WXUNUSED(page),
  89                                               gint page,
  90                                               wxNotebook *notebook )
  91 {
  92     static bool s_inPageChange = FALSE;
  93
  94     // are you trying to call SetSelection() from a notebook event handler?
  95     // you shouldn't!
  96     wxCHECK_RET( !s_inPageChange,
  97                  _T("gtk_notebook_page_change_callback reentered") );
  98
  99     s_inPageChange = TRUE;
 100     if (g_isIdle)
 101         wxapp_install_idle_handler();
 102
 103     int old = notebook->GetSelection();
 104
 105     wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
 106                                    notebook->GetId(), page, old );
 107     eventChanging.SetEventObject( notebook );
 108
 109     if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
 110          !eventChanging.IsAllowed() )
 111     {
 112         /* program doesn't allow the page change */
 113         gtk_signal_emit_stop_by_name( GTK_OBJECT(notebook->m_widget),
 114                                       "switch_page" );
 115     }
 116     else // change allowed
 117     {
 118         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 119         // with wxNotebookEvent::GetSelection()) value even though the page is
 120         // not really changed in GTK+
 121         notebook->m_selection = page;
 122
 123         wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
 124                                       notebook->GetId(), page, old );
 125         eventChanged.SetEventObject( notebook );
 126         notebook->GetEventHandler()->ProcessEvent( eventChanged );
 127     }
 128
 129     s_inPageChange = FALSE;
 130 }
 131
 132 //-----------------------------------------------------------------------------
 133 // "size_allocate"
 134 //-----------------------------------------------------------------------------
 135
 136 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 137 {
 138     if (g_isIdle)
 139         wxapp_install_idle_handler();
 140
 141     if ((win->m_x == alloc->x) &&
 142         (win->m_y == alloc->y) &&
 143         (win->m_width == alloc->width) &&
 144         (win->m_height == alloc->height))
 145     {
 146         return;
 147     }
 148
 149     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 150
 151     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 152        here in order to make repositioning after resizing to take effect. */
 153     if ((gtk_major_version == 1) &&
 154         (gtk_minor_version == 2) &&
 155         (gtk_micro_version < 6) &&
 156         (win->m_wxwindow) &&
 157         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 158     {
 159         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 160     }
 161 }
 162
 163 //-----------------------------------------------------------------------------
 164 // "realize" from m_widget
 165 //-----------------------------------------------------------------------------
 166
 167 static gint
 168 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 169 {
 170     if (g_isIdle)
 171         wxapp_install_idle_handler();
 172
 173     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 174        here in order to make repositioning before showing to take effect. */
 175     gtk_widget_queue_resize( win->m_widget );
 176
 177     return FALSE;
 178 }
 179
 180 //-----------------------------------------------------------------------------
 181 // "key_press_event"
 182 //-----------------------------------------------------------------------------
 183
 184 static gint gtk_notebook_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxNotebook *win )
 185 {
 186     if (g_isIdle)
 187         wxapp_install_idle_handler();
 188
 189     if (!win->m_hasVMT) return FALSE;
 190     if (g_blockEventsOnDrag) return FALSE;
 191
 192     /* win is a control: tab can be propagated up */
 193     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 194     {
 195         wxNode *node = win->m_pages.Nth( win->GetSelection() );
 196         if (!node) return FALSE;
 197
 198         wxGtkNotebookPage *page = (wxGtkNotebookPage*) node->Data();
 199
 200         wxNavigationKeyEvent event;
 201         event.SetEventObject( win );
 202         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 203         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 204         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 205         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 206         event.SetCurrentFocus( win );
 207         if (!page->m_client->GetEventHandler()->ProcessEvent( event ))
 208         {
 209              page->m_client->SetFocus();
 210         }
 211
 212         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 213         return TRUE;
 214     }
 215
 216     return FALSE;
 217 }
 218
 219 //-----------------------------------------------------------------------------
 220 // InsertChild callback for wxNotebook
 221 //-----------------------------------------------------------------------------
 222
 223 static void wxInsertChildInNotebook( wxNotebook* WXUNUSED(parent), wxWindow* WXUNUSED(child) )
 224 {
 225     /* we don't do anything here but pray */
 226 }
 227
 228 //-----------------------------------------------------------------------------
 229 // wxNotebook
 230 //-----------------------------------------------------------------------------
 231
 232 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 233
 234 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 235     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 236 END_EVENT_TABLE()
 237
 238 void wxNotebook::Init()
 239 {
 240     m_imageList = (wxImageList *) NULL;
 241     m_ownsImageList = FALSE;
 242     m_pages.DeleteContents( TRUE );
 243     m_selection = -1;
 244     m_themeEnabled = TRUE;
 245 }
 246
 247 wxNotebook::wxNotebook()
 248 {
 249     Init();
 250 }
 251
 252 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 253       const wxPoint& pos, const wxSize& size,
 254       long style, const wxString& name )
 255 {
 256     Init();
 257     Create( parent, id, pos, size, style, name );
 258 }
 259
 260 wxNotebook::~wxNotebook()
 261 {
 262     /* don't generate change page events any more */
 263     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 264       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 265
 266     DeleteAllPages();
 267     if (m_ownsImageList) delete m_imageList;
 268 }
 269
 270 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 271       const wxPoint& pos, const wxSize& size,
 272       long style, const wxString& name )
 273 {
 274     m_needParent = TRUE;
 275     m_acceptsFocus = TRUE;
 276     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 277
 278     if (!PreCreation( parent, pos, size ) ||
 279         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 280     {
 281         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 282         return FALSE;
 283     }
 284
 285
 286     m_widget = gtk_notebook_new();
 287
 288 #ifdef __WXDEBUG__
 289     debug_focus_in( m_widget, wxT("wxNotebook::m_widget"), name );
 290 #endif
 291
 292     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 293
 294     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 295       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 296
 297     m_parent->DoAddChild( this );
 298
 299     if (m_windowStyle & wxNB_RIGHT)
 300         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 301     if (m_windowStyle & wxNB_LEFT)
 302         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 303     if (m_windowStyle & wxNB_BOTTOM)
 304         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 305
 306     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 307       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 308
 309     PostCreation();
 310
 311     SetFont( parent->GetFont() );
 312
 313     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 314                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 315
 316     Show( TRUE );
 317
 318     return TRUE;
 319 }
 320
 321 int wxNotebook::GetSelection() const
 322 {
 323     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 324
 325     if ( m_selection == -1 )
 326     {
 327         GList *pages = GTK_NOTEBOOK(m_widget)->children;
 328
 329         if (g_list_length(pages) != 0)
 330         {
 331             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 332
 333             gpointer cur = notebook->cur_page;
 334             if ( cur != NULL )
 335             {
 336                 wxConstCast(this, wxNotebook)->m_selection =
 337                     g_list_index( pages, cur );
 338             }
 339         }
 340     }
 341
 342     return m_selection;
 343 }
 344
 345 wxString wxNotebook::GetPageText( int page ) const
 346 {
 347     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid notebook") );
 348
 349     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 350     if (nb_page)
 351         return nb_page->m_text;
 352     else
 353         return wxT("");
 354 }
 355
 356 int wxNotebook::GetPageImage( int page ) const
 357 {
 358     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 359
 360     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 361     if (nb_page)
 362         return nb_page->m_image;
 363     else
 364         return -1;
 365 }
 366
 367 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 368 {
 369     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 370
 371     wxCHECK_MSG( page < (int)m_pages.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 372
 373     wxNode *node = m_pages.Nth( page );
 374
 375     return (wxGtkNotebookPage *) node->Data();
 376 }
 377
 378 int wxNotebook::SetSelection( int page )
 379 {
 380     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 381
 382     wxCHECK_MSG( page < (int)m_pages.GetCount(), -1, wxT("invalid notebook index") );
 383
 384     int selOld = GetSelection();
 385
 386     // cache the selection
 387     m_selection = page;
 388     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 389
 390     wxGtkNotebookPage* g_page = GetNotebookPage( page );
 391     if (g_page->m_client)
 392         g_page->m_client->SetFocus();
 393
 394     return selOld;
 395 }
 396
 397 void wxNotebook::SetImageList( wxImageList* imageList )
 398 {
 399     if (m_ownsImageList) delete m_imageList;
 400     m_imageList = imageList;
 401     m_ownsImageList = FALSE;
 402 }
 403
 404 void wxNotebook::AssignImageList( wxImageList* imageList )
 405 {
 406     SetImageList(imageList);
 407     m_ownsImageList = TRUE;
 408 }
 409
 410 bool wxNotebook::SetPageText( int page, const wxString &text )
 411 {
 412     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 413
 414     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 415
 416     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 417
 418     nb_page->m_text = text;
 419
 420     gtk_label_set( nb_page->m_label, nb_page->m_text.mbc_str() );
 421
 422     return TRUE;
 423 }
 424
 425 bool wxNotebook::SetPageImage( int page, int image )
 426 {
 427     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 428
 429     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 430
 431     if (!nb_page) return FALSE;
 432
 433     /* Optimization posibility: return immediately if image unchanged.
 434      * Not enabled because it may break existing (stupid) code that
 435      * manipulates the imagelist to cycle images */
 436
 437     /* if (image == nb_page->m_image) return TRUE; */
 438
 439     /* For different cases:
 440        1) no image -> no image
 441        2) image -> no image
 442        3) no image -> image
 443        4) image -> image */
 444
 445     if (image == -1 && nb_page->m_image == -1)
 446         return TRUE; /* Case 1): Nothing to do. */
 447
 448     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 449
 450     if (nb_page->m_image != -1)
 451     {
 452         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 453
 454         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 455         while (child)
 456         {
 457             if (GTK_IS_PIXMAP(child->data))
 458             {
 459                 pixmapwid = GTK_WIDGET(child->data);
 460                 break;
 461             }
 462             child = child->next;
 463         }
 464
 465         /* We should have the pixmap widget now */
 466         wxASSERT(pixmapwid != NULL);
 467
 468         if (image == -1)
 469         {
 470             /* If there's no new widget, just remove the old from the box */
 471             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 472             nb_page->m_image = -1;
 473
 474             return TRUE; /* Case 2) */
 475         }
 476     }
 477
 478     /* Only cases 3) and 4) left */
 479     wxASSERT( m_imageList != NULL ); /* Just in case */
 480
 481     /* Construct the new pixmap */
 482     const wxBitmap *bmp = m_imageList->GetBitmap(image);
 483     GdkPixmap *pixmap = bmp->GetPixmap();
 484     GdkBitmap *mask = (GdkBitmap*) NULL;
 485     if ( bmp->GetMask() )
 486     {
 487         mask = bmp->GetMask()->GetBitmap();
 488     }
 489
 490     if (pixmapwid == NULL)
 491     {
 492         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 493         pixmapwid = gtk_pixmap_new (pixmap, mask );
 494
 495         /* CHECKME: Are these pack flags okay? */
 496         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, 3);
 497         gtk_widget_show(pixmapwid);
 498     }
 499     else
 500     {
 501         /* Case 4) Simply replace the pixmap */
 502         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 503     }
 504
 505     nb_page->m_image = image;
 506
 507     return TRUE;
 508 }
 509
 510 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 511 {
 512     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 513 }
 514
 515 void wxNotebook::SetPadding( const wxSize &WXUNUSED(padding) )
 516 {
 517     wxFAIL_MSG( wxT("wxNotebook::SetPadding not implemented") );
 518 }
 519
 520 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 521 {
 522     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 523 }
 524
 525 bool wxNotebook::DeleteAllPages()
 526 {
 527     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 528
 529     while (m_pages.GetCount() > 0)
 530         DeletePage( m_pages.GetCount()-1 );
 531
 532     return TRUE;
 533 }
 534
 535 bool wxNotebook::DeletePage( int page )
 536 {
 537     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 538     wxCHECK_MSG( nb_page, FALSE, _T("invalid page in wxNotebook::DeletePage") );
 539
 540     // GTK sets GtkNotebook.cur_page to NULL before sending the switch page
 541     // event so we have to store the selection internally
 542     if ( m_selection == -1 )
 543     {
 544         m_selection = GetSelection();
 545         if ( m_selection == (int)m_pages.GetCount() - 1 )
 546         {
 547             // the index will become invalid after the page is deleted
 548             m_selection = -1;
 549         }
 550     }
 551
 552     nb_page->m_client->Destroy();
 553     m_pages.DeleteObject( nb_page );
 554
 555     return TRUE;
 556 }
 557
 558 wxNotebookPage *wxNotebook::DoRemovePage( int page )
 559 {
 560     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 561
 562     wxCHECK_MSG( nb_page, NULL, _T("wxNotebook::RemovePage: invalid page") );
 563
 564     gtk_widget_ref( nb_page->m_client->m_widget );
 565     gtk_widget_unrealize( nb_page->m_client->m_widget );
 566     gtk_widget_unparent( nb_page->m_client->m_widget );
 567
 568     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 569
 570     wxNotebookPage *pageRemoved = (wxNotebookPage *)m_pages[page];
 571     m_pages.DeleteObject( nb_page );
 572
 573     return pageRemoved;
 574 }
 575
 576 bool wxNotebook::InsertPage( int position, wxNotebookPage* win, const wxString& text,
 577                              bool select, int imageId )
 578 {
 579     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 580
 581     wxCHECK_MSG( win->GetParent() == this, FALSE,
 582                wxT("Can't add a page whose parent is not the notebook!") );
 583
 584     /* don't receive switch page during addition */
 585     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 586       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 587
 588     if (m_themeEnabled)
 589         win->SetThemeEnabled(TRUE);
 590
 591     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 592
 593     wxGtkNotebookPage *page = new wxGtkNotebookPage();
 594
 595     if (position < 0)
 596         m_pages.Append( page );
 597     else
 598         m_pages.Insert( m_pages.Nth( position ), page );
 599
 600     page->m_client = win;
 601
 602     page->m_box = gtk_hbox_new( FALSE, 0 );
 603     gtk_container_border_width( GTK_CONTAINER(page->m_box), 2 );
 604
 605     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 606       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 607
 608     if (position < 0)
 609         gtk_notebook_append_page( notebook, win->m_widget, page->m_box );
 610     else
 611         gtk_notebook_insert_page( notebook, win->m_widget, page->m_box, position );
 612
 613     page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 614
 615     /* set the label image */
 616     page->m_image = imageId;
 617
 618     if (imageId != -1)
 619     {
 620         wxASSERT( m_imageList != NULL );
 621
 622         const wxBitmap *bmp = m_imageList->GetBitmap(imageId);
 623         GdkPixmap *pixmap = bmp->GetPixmap();
 624         GdkBitmap *mask = (GdkBitmap*) NULL;
 625         if ( bmp->GetMask() )
 626         {
 627             mask = bmp->GetMask()->GetBitmap();
 628         }
 629
 630         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 631
 632         gtk_box_pack_start(GTK_BOX(page->m_box), pixmapwid, FALSE, FALSE, 3);
 633
 634         gtk_widget_show(pixmapwid);
 635     }
 636
 637     /* set the label text */
 638     page->m_text = text;
 639     if (page->m_text.IsEmpty()) page->m_text = wxT("");
 640
 641     page->m_label = GTK_LABEL( gtk_label_new(page->m_text.mbc_str()) );
 642     gtk_box_pack_end( GTK_BOX(page->m_box), GTK_WIDGET(page->m_label), FALSE, FALSE, 3 );
 643
 644     /* show the label */
 645     gtk_widget_show( GTK_WIDGET(page->m_label) );
 646
 647     if (select && (m_pages.GetCount() > 1))
 648     {
 649         if (position < 0)
 650             SetSelection( GetPageCount()-1 );
 651         else
 652             SetSelection( position );
 653     }
 654
 655     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 656       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 657
 658     return TRUE;
 659 }
 660
 661 bool wxNotebook::AddPage(wxNotebookPage* win, const wxString& text,
 662                          bool select, int imageId)
 663 {
 664     return InsertPage( -1, win, text, select, imageId );
 665 }
 666
 667 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 668 {
 669     if (event.IsWindowChange())
 670         AdvanceSelection( event.GetDirection() );
 671     else
 672         event.Skip();
 673 }
 674
 675 #if wxUSE_CONSTRAINTS
 676
 677 // override these 2 functions to do nothing: everything is done in OnSize
 678 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 679 {
 680     // don't set the sizes of the pages - their correct size is not yet known
 681     wxControl::SetConstraintSizes(FALSE);
 682 }
 683
 684 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 685 {
 686     return TRUE;
 687 }
 688
 689 #endif
 690
 691 void wxNotebook::ApplyWidgetStyle()
 692 {
 693     // TODO, font for labels etc
 694
 695     SetWidgetStyle();
 696     gtk_widget_set_style( m_widget, m_widgetStyle );
 697 }
 698
 699 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 700 {
 701     return ((m_widget->window == window) ||
 702             (GTK_NOTEBOOK(m_widget)->panel == window));
 703 }
 704
 705 //-----------------------------------------------------------------------------
 706 // wxNotebookEvent
 707 //-----------------------------------------------------------------------------
 708
 709 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 710
 711 #endif