src/gtk/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/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 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_NOTEBOOK
  14
  15 #include "wx/notebook.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/intl.h"
  19     #include "wx/log.h"
  20     #include "wx/utils.h"
  21     #include "wx/msgdlg.h"
  22     #include "wx/bitmap.h"
  23 #endif
  24
  25 #include "wx/imaglist.h"
  26 #include "wx/fontutil.h"
  27
  28 #include "wx/gtk/private.h"
  29 #include "wx/gtk/win_gtk.h"
  30
  31 #include <gdk/gdkkeysyms.h>
  32
  33 // ----------------------------------------------------------------------------
  34 // events
  35 // ----------------------------------------------------------------------------
  36
  37 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  38 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  39
  40 //-----------------------------------------------------------------------------
  41 // data
  42 //-----------------------------------------------------------------------------
  43
  44 extern bool g_blockEventsOnDrag;
  45
  46 //-----------------------------------------------------------------------------
  47 // wxGtkNotebookPage
  48 //-----------------------------------------------------------------------------
  49
  50 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  51 //     allows us to have quite a few functions implemented in the base class)
  52 //     but the page data is kept in a separate list, so we must maintain them
  53 //     in sync manually... of course, the list had been there before the base
  54 //     class which explains it but it still would be nice to do something
  55 //     about this one day
  56
  57 class wxGtkNotebookPage: public wxObject
  58 {
  59 public:
  60     wxGtkNotebookPage()
  61     {
  62         m_image = -1;
  63         m_page = (GtkNotebookPage *) NULL;
  64         m_box = (GtkWidget *) NULL;
  65     }
  66
  67     wxString           m_text;
  68     int                m_image;
  69     GtkNotebookPage   *m_page;
  70     GtkLabel          *m_label;
  71     GtkWidget         *m_box;     // in which the label and image are packed
  72 };
  73
  74
  75 #include "wx/listimpl.cpp"
  76 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  77
  78
  79 //-----------------------------------------------------------------------------
  80 // "switch_page"
  81 //-----------------------------------------------------------------------------
  82
  83 extern "C" {
  84 static void gtk_notebook_page_changing_callback( GtkNotebook *widget,
  85                                                  GtkNotebookPage *WXUNUSED(gpage),
  86                                                  guint page,
  87                                                  wxNotebook *notebook )
  88 {
  89     int old = gtk_notebook_get_current_page( widget );
  90
  91     if ( !notebook->SendPageChangingEvent(page) )
  92     {
  93         // program doesn't allow the page change
  94         g_signal_stop_emission_by_name(notebook->m_widget, "switch_page");
  95     }
  96     else
  97     {
  98         // the page change event also reports the old page
  99         notebook->m_oldSelection = old;
 100     }
 101 }
 102 }
 103
 104 extern "C" {
 105 static void gtk_notebook_page_changed_callback( GtkNotebook *widget,
 106                                                 GtkNotebookPage *WXUNUSED(gpage),
 107                                                 guint page,
 108                                                 wxNotebook *notebook )
 109 {
 110     int old = notebook->m_oldSelection;
 111     notebook->SendPageChangedEvent( old );
 112 }
 113 }
 114
 115 //-----------------------------------------------------------------------------
 116 // "size_allocate"
 117 //-----------------------------------------------------------------------------
 118
 119 extern "C" {
 120 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 121 {
 122     if (g_isIdle)
 123         wxapp_install_idle_handler();
 124
 125     if ((win->m_x == alloc->x) &&
 126         (win->m_y == alloc->y) &&
 127         (win->m_width == alloc->width) &&
 128         (win->m_height == alloc->height))
 129     {
 130         return;
 131     }
 132
 133     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 134
 135     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 136        here in order to make repositioning after resizing to take effect. */
 137     if ((gtk_major_version == 1) &&
 138         (gtk_minor_version == 2) &&
 139         (gtk_micro_version < 6) &&
 140         (win->m_wxwindow) &&
 141         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 142     {
 143         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 144     }
 145 }
 146 }
 147
 148 //-----------------------------------------------------------------------------
 149 // "realize" from m_widget
 150 //-----------------------------------------------------------------------------
 151
 152 extern "C" {
 153 static void
 154 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 155 {
 156     if (g_isIdle)
 157         wxapp_install_idle_handler();
 158
 159     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 160        here in order to make repositioning before showing to take effect. */
 161     gtk_widget_queue_resize( win->m_widget );
 162 }
 163 }
 164
 165 //-----------------------------------------------------------------------------
 166 // "key_press_event"
 167 //-----------------------------------------------------------------------------
 168
 169 extern "C" {
 170 static gboolean
 171 gtk_notebook_key_press_callback( GtkWidget   *widget,
 172                                  GdkEventKey *gdk_event,
 173                                  wxNotebook  *notebook )
 174 {
 175     // don't need to install idle handler, its done from "event" signal
 176
 177     if (!notebook->m_hasVMT) return FALSE;
 178     if (g_blockEventsOnDrag) return FALSE;
 179
 180     /* win is a control: tab can be propagated up */
 181     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 182     {
 183         int page;
 184         int nMax = notebook->GetPageCount();
 185         if ( nMax-- ) // decrement it to get the last valid index
 186         {
 187             int nSel = notebook->GetSelection();
 188
 189             // change selection wrapping if it becomes invalid
 190             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 191                                        : nSel + 1
 192                         : nSel == 0 ? nMax
 193                                     : nSel - 1;
 194         }
 195         else // notebook is empty, no next page
 196         {
 197             return FALSE;
 198         }
 199
 200         gtk_notebook_set_current_page( GTK_NOTEBOOK(widget), page );
 201
 202         return TRUE;
 203     }
 204
 205     /* win is a control: tab can be propagated up */
 206     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 207     {
 208         int sel = notebook->GetSelection();
 209         if (sel == -1)
 210             return TRUE;
 211         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 212         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 213
 214         wxNavigationKeyEvent event;
 215         event.SetEventObject( notebook );
 216         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 217         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 218         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 219         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 220                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 221         event.SetCurrentFocus( notebook );
 222
 223         wxNotebookPage *client = notebook->GetPage(sel);
 224         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 225         {
 226              client->SetFocus();
 227         }
 228
 229         return TRUE;
 230     }
 231
 232     return FALSE;
 233 }
 234 }
 235
 236 //-----------------------------------------------------------------------------
 237 // InsertChild callback for wxNotebook
 238 //-----------------------------------------------------------------------------
 239
 240 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 241 {
 242     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 243     // widget, and takes care of some details such as updating the state and
 244     // style of the child to reflect its new location.  We do this early
 245     // because without it GetBestSize (which is used to set the initial size
 246     // of controls if an explicit size is not given) will often report
 247     // incorrect sizes since the widget's style context is not fully known.
 248     // See bug #901694 for details
 249     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 250     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 251
 252     // NOTE: This should be considered a temporary workaround until we can
 253     // work out the details and implement delaying the setting of the initial
 254     // size of widgets until the size is really needed.
 255 }
 256
 257 //-----------------------------------------------------------------------------
 258 // wxNotebook
 259 //-----------------------------------------------------------------------------
 260
 261 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 262
 263 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 264     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 265 END_EVENT_TABLE()
 266
 267 void wxNotebook::Init()
 268 {
 269     m_padding = 0;
 270
 271     m_imageList = (wxImageList *) NULL;
 272     m_oldSelection = -1;
 273     m_themeEnabled = true;
 274 }
 275
 276 wxNotebook::wxNotebook()
 277 {
 278     Init();
 279 }
 280
 281 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 282       const wxPoint& pos, const wxSize& size,
 283       long style, const wxString& name )
 284 {
 285     Init();
 286     Create( parent, id, pos, size, style, name );
 287 }
 288
 289 wxNotebook::~wxNotebook()
 290 {
 291     DeleteAllPages();
 292 }
 293
 294 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 295                         const wxPoint& pos, const wxSize& size,
 296                         long style, const wxString& name )
 297 {
 298     m_needParent = true;
 299     m_acceptsFocus = true;
 300     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 301
 302     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 303         style |= wxBK_TOP;
 304
 305     if (!PreCreation( parent, pos, size ) ||
 306         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 307     {
 308         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 309         return false;
 310     }
 311
 312
 313     m_widget = gtk_notebook_new();
 314
 315     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 316
 317     g_signal_connect (m_widget, "switch_page",
 318                       G_CALLBACK (gtk_notebook_page_changing_callback), this);
 319
 320     g_signal_connect_after (m_widget, "switch_page",
 321                       G_CALLBACK (gtk_notebook_page_changed_callback), this);
 322
 323     m_parent->DoAddChild( this );
 324
 325     if (m_windowStyle & wxBK_RIGHT)
 326         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 327     if (m_windowStyle & wxBK_LEFT)
 328         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 329     if (m_windowStyle & wxBK_BOTTOM)
 330         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 331
 332     g_signal_connect (m_widget, "key_press_event",
 333                       G_CALLBACK (gtk_notebook_key_press_callback), this);
 334
 335     PostCreation(size);
 336
 337     g_signal_connect (m_widget, "realize",
 338                       G_CALLBACK (gtk_notebook_realized_callback), this);
 339
 340     return true;
 341 }
 342
 343 int wxNotebook::GetSelection() const
 344 {
 345     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 346
 347     return gtk_notebook_get_current_page( GTK_NOTEBOOK(m_widget) );
 348 }
 349
 350 wxString wxNotebook::GetPageText( size_t page ) const
 351 {
 352     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 353
 354     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 355     if (nb_page)
 356         return nb_page->m_text;
 357     else
 358         return wxEmptyString;
 359 }
 360
 361 int wxNotebook::GetPageImage( size_t page ) const
 362 {
 363     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 364
 365     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 366     if (nb_page)
 367         return nb_page->m_image;
 368     else
 369         return -1;
 370 }
 371
 372 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 373 {
 374     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 375
 376     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 377
 378     return m_pagesData.Item(page)->GetData();
 379 }
 380
 381 int wxNotebook::DoSetSelection( size_t page, int flags )
 382 {
 383     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 384
 385     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 386
 387     int selOld = GetSelection();
 388
 389     if ( !(flags & SetSelection_SendEvent) )
 390     {
 391         g_signal_handlers_disconnect_by_func (m_widget,
 392                                              (gpointer) gtk_notebook_page_changing_callback,
 393                                              this);
 394
 395         g_signal_handlers_disconnect_by_func (m_widget,
 396                                              (gpointer) gtk_notebook_page_changed_callback,
 397                                              this);
 398     }
 399
 400     gtk_notebook_set_current_page( GTK_NOTEBOOK(m_widget), page );
 401
 402     if ( !(flags & SetSelection_SendEvent) )
 403     {
 404         // reconnect to signals
 405
 406         g_signal_connect (m_widget, "switch_page",
 407                           G_CALLBACK (gtk_notebook_page_changing_callback), this);
 408
 409         g_signal_connect_after (m_widget, "switch_page",
 410                       G_CALLBACK (gtk_notebook_page_changed_callback), this);
 411     }
 412
 413     wxNotebookPage *client = GetPage(page);
 414     if ( client )
 415         client->SetFocus();
 416
 417     return selOld;
 418 }
 419
 420 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 421 {
 422     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 423
 424     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 425
 426     wxCHECK_MSG( nb_page, false, wxT("SetPageText: invalid page index") );
 427
 428     nb_page->m_text = text;
 429
 430     gtk_label_set_text( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 431
 432     return true;
 433 }
 434
 435 bool wxNotebook::SetPageImage( size_t page, int image )
 436 {
 437     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 438
 439     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 440
 441     if (!nb_page) return false;
 442
 443     /* Optimization posibility: return immediately if image unchanged.
 444      * Not enabled because it may break existing (stupid) code that
 445      * manipulates the imagelist to cycle images */
 446
 447     /* if (image == nb_page->m_image) return true; */
 448
 449     /* For different cases:
 450        1) no image -> no image
 451        2) image -> no image
 452        3) no image -> image
 453        4) image -> image */
 454
 455     if (image == -1 && nb_page->m_image == -1)
 456         return true; /* Case 1): Nothing to do. */
 457
 458     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 459
 460     if (nb_page->m_image != -1)
 461     {
 462         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 463
 464         GList *child = gtk_container_get_children(GTK_CONTAINER(nb_page->m_box));
 465         while (child)
 466         {
 467             if (GTK_IS_IMAGE(child->data))
 468             {
 469                 pixmapwid = GTK_WIDGET(child->data);
 470                 break;
 471             }
 472             child = child->next;
 473         }
 474
 475         /* We should have the pixmap widget now */
 476         wxASSERT(pixmapwid != NULL);
 477
 478         if (image == -1)
 479         {
 480             /* If there's no new widget, just remove the old from the box */
 481             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 482             nb_page->m_image = -1;
 483
 484             return true; /* Case 2) */
 485         }
 486     }
 487
 488     /* Only cases 3) and 4) left */
 489     wxASSERT( m_imageList != NULL ); /* Just in case */
 490
 491     /* Construct the new pixmap */
 492     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 493
 494     if (pixmapwid == NULL)
 495     {
 496         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 497         pixmapwid = gtk_image_new_from_pixbuf(bmp->GetPixbuf());
 498
 499         /* CHECKME: Are these pack flags okay? */
 500         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 501         gtk_widget_show(pixmapwid);
 502     }
 503     else
 504     {
 505         /* Case 4) Simply replace the pixmap */
 506         gtk_image_set_from_pixbuf((GtkImage*)pixmapwid, bmp->GetPixbuf());
 507     }
 508
 509     nb_page->m_image = image;
 510
 511     return true;
 512 }
 513
 514 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 515 {
 516     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 517 }
 518
 519 void wxNotebook::SetPadding( const wxSize &padding )
 520 {
 521     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 522
 523     m_padding = padding.GetWidth();
 524
 525     int i;
 526     for (i=0; i<int(GetPageCount()); i++)
 527     {
 528         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 529         wxASSERT(nb_page != NULL);
 530
 531         if (nb_page->m_image != -1)
 532         {
 533             // gtk_box_set_child_packing sets padding on BOTH sides
 534             // icon provides left padding, label provides center and right
 535             int image = nb_page->m_image;
 536             SetPageImage(i,-1);
 537             SetPageImage(i,image);
 538         }
 539         wxASSERT(nb_page->m_label);
 540         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 541                                   GTK_WIDGET(nb_page->m_label),
 542                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 543     }
 544 }
 545
 546 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 547 {
 548     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 549 }
 550
 551 bool wxNotebook::DeleteAllPages()
 552 {
 553     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 554
 555     while (m_pagesData.GetCount() > 0)
 556         DeletePage( m_pagesData.GetCount()-1 );
 557
 558     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 559
 560     InvalidateBestSize();
 561     return wxNotebookBase::DeleteAllPages();
 562 }
 563
 564 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 565 {
 566     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 567     if ( !client )
 568         return NULL;
 569
 570     gtk_widget_ref( client->m_widget );
 571     gtk_widget_unrealize( client->m_widget );
 572
 573     // we don't need to unparent the client->m_widget; GTK+ will do
 574     // that for us (and will throw a warning if we do it!)
 575
 576     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 577
 578     wxGtkNotebookPage* p = GetNotebookPage(page);
 579     m_pagesData.DeleteObject(p);
 580     delete p;
 581
 582     return client;
 583 }
 584
 585 bool wxNotebook::InsertPage( size_t position,
 586                              wxNotebookPage* win,
 587                              const wxString& text,
 588                              bool select,
 589                              int imageId )
 590 {
 591     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 592
 593     wxCHECK_MSG( win->GetParent() == this, false,
 594                wxT("Can't add a page whose parent is not the notebook!") );
 595
 596     wxCHECK_MSG( position <= GetPageCount(), false,
 597                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 598
 599     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 600     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 601     // work as it seems to undo too much and will cause errors in the
 602     // gtk_notebook_insert_page below, so instead just clear the parent by
 603     // hand here.
 604     win->m_widget->parent = NULL;
 605
 606     if (m_themeEnabled)
 607         win->SetThemeEnabled(true);
 608
 609     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 610
 611     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 612
 613     if ( position == GetPageCount() )
 614         m_pagesData.Append( nb_page );
 615     else
 616         m_pagesData.Insert( position, nb_page );
 617
 618     m_pages.Insert(win, position);
 619
 620     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 621     gtk_container_set_border_width((GtkContainer*)nb_page->m_box, 2);
 622
 623     g_signal_connect (win->m_widget, "size_allocate",
 624                       G_CALLBACK (gtk_page_size_callback), win);
 625
 626     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 627
 628     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 629
 630     /* set the label image */
 631     nb_page->m_image = imageId;
 632
 633     if (imageId != -1)
 634     {
 635         wxASSERT( m_imageList != NULL );
 636
 637         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 638         GtkWidget* pixmapwid = gtk_image_new_from_pixbuf(bmp->GetPixbuf());
 639         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 640         gtk_widget_show(pixmapwid);
 641     }
 642
 643     /* set the label text */
 644
 645     nb_page->m_text = wxStripMenuCodes(text);
 646     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 647
 648     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 649     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 650
 651     /* apply current style */
 652     GtkRcStyle *style = CreateWidgetStyle();
 653     if ( style )
 654     {
 655         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 656         gtk_rc_style_unref(style);
 657     }
 658
 659     /* show the label */
 660     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 661
 662     if (select && (m_pagesData.GetCount() > 1))
 663     {
 664         SetSelection( position );
 665     }
 666
 667     InvalidateBestSize();
 668     return true;
 669 }
 670
 671 // helper for HitTest(): check if the point lies inside the given widget which
 672 // is the child of the notebook whose position and border size are passed as
 673 // parameters
 674 static bool
 675 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 676                     gint x, gint y, gint border = 0)
 677 {
 678     return
 679         (pt.x >= w->allocation.x - x - border) &&
 680         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 681         (pt.y >= w->allocation.y - y - border) &&
 682         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 683 }
 684
 685 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 686 {
 687     const gint x = m_widget->allocation.x;
 688     const gint y = m_widget->allocation.y;
 689
 690     const size_t count = GetPageCount();
 691     size_t i = 0;
 692
 693     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 694     if (gtk_notebook_get_scrollable(notebook))
 695         i = g_list_position( notebook->children, notebook->first_tab );
 696
 697     for ( ; i < count; i++ )
 698     {
 699         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 700         GtkWidget *box = nb_page->m_box;
 701
 702         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 703
 704         if ( IsPointInsideWidget(pt, box, x, y, border) )
 705         {
 706             // ok, we're inside this tab -- now find out where, if needed
 707             if ( flags )
 708             {
 709                 GtkWidget *pixmap = NULL;
 710
 711                 GList *children = gtk_container_get_children(GTK_CONTAINER(box));
 712                 for ( GList *child = children; child; child = child->next )
 713                 {
 714                     if (GTK_IS_IMAGE(child->data))
 715                     {
 716                         pixmap = GTK_WIDGET(child->data);
 717                         break;
 718                     }
 719                 }
 720
 721                 if ( children )
 722                     g_list_free(children);
 723
 724                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 725                 {
 726                     *flags = wxBK_HITTEST_ONICON;
 727                 }
 728                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 729                 {
 730                     *flags = wxBK_HITTEST_ONLABEL;
 731                 }
 732                 else
 733                 {
 734                     *flags = wxBK_HITTEST_ONITEM;
 735                 }
 736             }
 737
 738             return i;
 739         }
 740     }
 741
 742     if ( flags )
 743     {
 744         *flags = wxBK_HITTEST_NOWHERE;
 745         wxWindowBase * page = GetCurrentPage();
 746         if ( page )
 747         {
 748             // rect origin is in notebook's parent coordinates
 749             wxRect rect = page->GetRect();
 750
 751             // adjust it to the notebook's coordinates
 752             wxPoint pos = GetPosition();
 753             rect.x -= pos.x;
 754             rect.y -= pos.y;
 755             if ( rect.Contains( pt ) )
 756                 *flags |= wxBK_HITTEST_ONPAGE;
 757         }
 758     }
 759
 760     return wxNOT_FOUND;
 761 }
 762
 763 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 764 {
 765     if (event.IsWindowChange())
 766         AdvanceSelection( event.GetDirection() );
 767     else
 768         event.Skip();
 769 }
 770
 771 #if wxUSE_CONSTRAINTS
 772
 773 // override these 2 functions to do nothing: everything is done in OnSize
 774 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 775 {
 776     // don't set the sizes of the pages - their correct size is not yet known
 777     wxControl::SetConstraintSizes(false);
 778 }
 779
 780 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 781 {
 782     return true;
 783 }
 784
 785 #endif
 786
 787 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 788 {
 789     gtk_widget_modify_style(m_widget, style);
 790     size_t cnt = m_pagesData.GetCount();
 791     for (size_t i = 0; i < cnt; i++)
 792         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 793 }
 794
 795 GdkWindow *wxNotebook::GTKGetWindow(wxArrayGdkWindows& windows) const
 796 {
 797     windows.push_back(m_widget->window);
 798     windows.push_back(GTK_NOTEBOOK(m_widget)->event_window);
 799
 800     return NULL;
 801 }
 802
 803 // static
 804 wxVisualAttributes
 805 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 806 {
 807     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 808 }
 809
 810 //-----------------------------------------------------------------------------
 811 // wxNotebookEvent
 812 //-----------------------------------------------------------------------------
 813
 814 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 815
 816 #endif