src/gtk1/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_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 }
 268
 269 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 270                         const wxPoint& pos, const wxSize& size,
 271                         long style, const wxString& name )
 272 {
 273     m_needParent = TRUE;
 274     m_acceptsFocus = TRUE;
 275     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 276
 277     if (!PreCreation( parent, pos, size ) ||
 278         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 279     {
 280         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 281         return FALSE;
 282     }
 283
 284
 285     m_widget = gtk_notebook_new();
 286
 287     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 288
 289     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 290       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 291
 292     m_parent->DoAddChild( this );
 293
 294     if (m_windowStyle & wxNB_RIGHT)
 295         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 296     if (m_windowStyle & wxNB_LEFT)
 297         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 298     if (m_windowStyle & wxNB_BOTTOM)
 299         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 300
 301     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 302       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 303
 304     PostCreation();
 305
 306     SetFont( parent->GetFont() );
 307
 308     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 309                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 310
 311     Show( TRUE );
 312
 313     return TRUE;
 314 }
 315
 316 int wxNotebook::GetSelection() const
 317 {
 318     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 319
 320     if ( m_selection == -1 )
 321     {
 322         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 323
 324         if (g_list_length(nb_pages) != 0)
 325         {
 326             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 327
 328             gpointer cur = notebook->cur_page;
 329             if ( cur != NULL )
 330             {
 331                 wxConstCast(this, wxNotebook)->m_selection =
 332                     g_list_index( nb_pages, cur );
 333             }
 334         }
 335     }
 336
 337     return m_selection;
 338 }
 339
 340 wxString wxNotebook::GetPageText( int page ) const
 341 {
 342     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid notebook") );
 343
 344     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 345     if (nb_page)
 346         return nb_page->m_text;
 347     else
 348         return wxT("");
 349 }
 350
 351 int wxNotebook::GetPageImage( int page ) const
 352 {
 353     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 354
 355     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 356     if (nb_page)
 357         return nb_page->m_image;
 358     else
 359         return -1;
 360 }
 361
 362 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 363 {
 364     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 365
 366     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 367
 368     return m_pagesData.Item(page)->GetData();
 369 }
 370
 371 int wxNotebook::SetSelection( int page )
 372 {
 373     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 374
 375     wxCHECK_MSG( page >= 0 && page < (int)m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 376
 377     int selOld = GetSelection();
 378
 379     // cache the selection
 380     m_selection = page;
 381     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 382
 383     wxNotebookPage *client = GetPage(page);
 384     if ( client )
 385         client->SetFocus();
 386
 387     return selOld;
 388 }
 389
 390 bool wxNotebook::SetPageText( int page, const wxString &text )
 391 {
 392     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 393
 394     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 395
 396     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 397
 398     nb_page->m_text = text;
 399
 400     gtk_label_set( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 401
 402     return TRUE;
 403 }
 404
 405 bool wxNotebook::SetPageImage( int page, int image )
 406 {
 407     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 408
 409     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 410
 411     if (!nb_page) return FALSE;
 412
 413     /* Optimization posibility: return immediately if image unchanged.
 414      * Not enabled because it may break existing (stupid) code that
 415      * manipulates the imagelist to cycle images */
 416
 417     /* if (image == nb_page->m_image) return TRUE; */
 418
 419     /* For different cases:
 420        1) no image -> no image
 421        2) image -> no image
 422        3) no image -> image
 423        4) image -> image */
 424
 425     if (image == -1 && nb_page->m_image == -1)
 426         return TRUE; /* Case 1): Nothing to do. */
 427
 428     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 429
 430     if (nb_page->m_image != -1)
 431     {
 432         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 433
 434         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 435         while (child)
 436         {
 437             if (GTK_IS_PIXMAP(child->data))
 438             {
 439                 pixmapwid = GTK_WIDGET(child->data);
 440                 break;
 441             }
 442             child = child->next;
 443         }
 444
 445         /* We should have the pixmap widget now */
 446         wxASSERT(pixmapwid != NULL);
 447
 448         if (image == -1)
 449         {
 450             /* If there's no new widget, just remove the old from the box */
 451             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 452             nb_page->m_image = -1;
 453
 454             return TRUE; /* Case 2) */
 455         }
 456     }
 457
 458     /* Only cases 3) and 4) left */
 459     wxASSERT( m_imageList != NULL ); /* Just in case */
 460
 461     /* Construct the new pixmap */
 462     const wxBitmap *bmp = m_imageList->GetBitmap(image);
 463     GdkPixmap *pixmap = bmp->GetPixmap();
 464     GdkBitmap *mask = (GdkBitmap*) NULL;
 465     if ( bmp->GetMask() )
 466     {
 467         mask = bmp->GetMask()->GetBitmap();
 468     }
 469
 470     if (pixmapwid == NULL)
 471     {
 472         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 473         pixmapwid = gtk_pixmap_new (pixmap, mask );
 474
 475         /* CHECKME: Are these pack flags okay? */
 476         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 477         gtk_widget_show(pixmapwid);
 478     }
 479     else
 480     {
 481         /* Case 4) Simply replace the pixmap */
 482         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 483     }
 484
 485     nb_page->m_image = image;
 486
 487     return TRUE;
 488 }
 489
 490 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 491 {
 492     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 493 }
 494
 495 void wxNotebook::SetPadding( const wxSize &padding )
 496 {
 497     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 498
 499     m_padding = padding.GetWidth();
 500
 501     int i;
 502     for (i=0; i<int(GetPageCount()); i++)
 503     {
 504         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 505         wxASSERT(nb_page != NULL);
 506
 507         if (nb_page->m_image != -1)
 508         {
 509             // gtk_box_set_child_packing sets padding on BOTH sides
 510             // icon provides left padding, label provides center and right
 511             int image = nb_page->m_image;
 512             SetPageImage(i,-1);
 513             SetPageImage(i,image);
 514         }
 515         wxASSERT(nb_page->m_label);
 516         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 517                                   GTK_WIDGET(nb_page->m_label),
 518                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 519     }
 520 }
 521
 522 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 523 {
 524     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 525 }
 526
 527 bool wxNotebook::DeleteAllPages()
 528 {
 529     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 530
 531     while (m_pagesData.GetCount() > 0)
 532         DeletePage( m_pagesData.GetCount()-1 );
 533
 534     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 535
 536     return wxNotebookBase::DeleteAllPages();
 537 }
 538
 539 bool wxNotebook::DeletePage( int page )
 540 {
 541     // GTK sets GtkNotebook.cur_page to NULL before sending the switch page
 542     // event so we have to store the selection internally
 543     if ( m_selection == -1 )
 544     {
 545         m_selection = GetSelection();
 546         if ( m_selection == (int)m_pagesData.GetCount() - 1 )
 547         {
 548             // the index will become invalid after the page is deleted
 549             m_selection = -1;
 550         }
 551     }
 552
 553     // it will call our DoRemovePage() to do the real work
 554     return wxNotebookBase::DeletePage(page);
 555 }
 556
 557 wxNotebookPage *wxNotebook::DoRemovePage( int page )
 558 {
 559     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 560     if ( !client )
 561         return NULL;
 562
 563     gtk_widget_ref( client->m_widget );
 564     gtk_widget_unrealize( client->m_widget );
 565     gtk_widget_unparent( client->m_widget );
 566
 567     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 568
 569     wxGtkNotebookPage* p = GetNotebookPage(page);
 570     m_pagesData.DeleteObject(p);
 571     delete p;
 572
 573     return client;
 574 }
 575
 576 bool wxNotebook::InsertPage( int position,
 577                              wxNotebookPage* win,
 578                              const wxString& text,
 579                              bool select,
 580                              int imageId )
 581 {
 582     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 583
 584     wxCHECK_MSG( win->GetParent() == this, FALSE,
 585                wxT("Can't add a page whose parent is not the notebook!") );
 586
 587     wxCHECK_MSG( position >= 0 && position <= GetPageCount(), FALSE,
 588                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 589
 590     /* don't receive switch page during addition */
 591     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 592       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 593
 594     if (m_themeEnabled)
 595         win->SetThemeEnabled(TRUE);
 596
 597     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 598
 599     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 600
 601     if ( position == GetPageCount() )
 602         m_pagesData.Append( nb_page );
 603     else
 604         m_pagesData.Insert( m_pagesData.Item( position ), nb_page );
 605
 606     m_pages.Insert(win, position);
 607
 608     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 609     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 610
 611     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 612       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 613
 614     if (position < 0)
 615         gtk_notebook_append_page( notebook, win->m_widget, nb_page->m_box );
 616     else
 617         gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 618
 619     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 620
 621     /* set the label image */
 622     nb_page->m_image = imageId;
 623
 624     if (imageId != -1)
 625     {
 626         wxASSERT( m_imageList != NULL );
 627
 628         const wxBitmap *bmp = m_imageList->GetBitmap(imageId);
 629         GdkPixmap *pixmap = bmp->GetPixmap();
 630         GdkBitmap *mask = (GdkBitmap*) NULL;
 631         if ( bmp->GetMask() )
 632         {
 633             mask = bmp->GetMask()->GetBitmap();
 634         }
 635
 636         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 637
 638         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 639
 640         gtk_widget_show(pixmapwid);
 641     }
 642
 643     /* set the label text */
 644     nb_page->m_text = text;
 645     if (nb_page->m_text.IsEmpty()) nb_page->m_text = wxT("");
 646
 647     nb_page->m_label = GTK_LABEL( gtk_label_new(nb_page->m_text.mbc_str()) );
 648     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 649
 650     /* show the label */
 651     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 652     if (select && (m_pagesData.GetCount() > 1))
 653     {
 654         if (position < 0)
 655             SetSelection( GetPageCount()-1 );
 656         else
 657             SetSelection( position );
 658     }
 659
 660     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 661       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 662
 663     return TRUE;
 664 }
 665
 666 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 667 {
 668     if (event.IsWindowChange())
 669         AdvanceSelection( event.GetDirection() );
 670     else
 671         event.Skip();
 672 }
 673
 674 #if wxUSE_CONSTRAINTS
 675
 676 // override these 2 functions to do nothing: everything is done in OnSize
 677 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 678 {
 679     // don't set the sizes of the pages - their correct size is not yet known
 680     wxControl::SetConstraintSizes(FALSE);
 681 }
 682
 683 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 684 {
 685     return TRUE;
 686 }
 687
 688 #endif
 689
 690 void wxNotebook::ApplyWidgetStyle()
 691 {
 692     // TODO, font for labels etc
 693
 694     SetWidgetStyle();
 695     gtk_widget_set_style( m_widget, m_widgetStyle );
 696 }
 697
 698 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 699 {
 700     return ((m_widget->window == window) ||
 701             (NOTEBOOK_PANEL(m_widget) == window));
 702 }
 703
 704 //-----------------------------------------------------------------------------
 705 // wxNotebookEvent
 706 //-----------------------------------------------------------------------------
 707
 708 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 709
 710 #endif