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