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 #endif
  20
  21 #include "wx/panel.h"
  22 #include "wx/utils.h"
  23 #include "wx/imaglist.h"
  24 #include "wx/log.h"
  25 #include "wx/bitmap.h"
  26 #include "wx/fontutil.h"
  27
  28 // FIXME: Use GtkImage instead of GtkPixmap. Don't use gtk_container_border_width
  29 #include <gtk/gtkversion.h>
  30 #ifdef GTK_DISABLE_DEPRECATED
  31 #undef GTK_DISABLE_DEPRECATED
  32 #endif
  33
  34 #include "wx/gtk/private.h"
  35 #include "wx/gtk/win_gtk.h"
  36
  37 #include <gdk/gdkkeysyms.h>
  38
  39 #include "wx/msgdlg.h"
  40
  41 // ----------------------------------------------------------------------------
  42 // events
  43 // ----------------------------------------------------------------------------
  44
  45 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  46 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  47
  48 //-----------------------------------------------------------------------------
  49 // data
  50 //-----------------------------------------------------------------------------
  51
  52 extern bool g_blockEventsOnDrag;
  53
  54 //-----------------------------------------------------------------------------
  55 // wxGtkNotebookPage
  56 //-----------------------------------------------------------------------------
  57
  58 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  59 //     allows us to have quite a few functions implemented in the base class)
  60 //     but the page data is kept in a separate list, so we must maintain them
  61 //     in sync manually... of course, the list had been there before the base
  62 //     class which explains it but it still would be nice to do something
  63 //     about this one day
  64
  65 class wxGtkNotebookPage: public wxObject
  66 {
  67 public:
  68     wxGtkNotebookPage()
  69     {
  70         m_image = -1;
  71         m_page = (GtkNotebookPage *) 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     GtkWidget         *m_box;     // in which the label and image are packed
  80 };
  81
  82
  83 #include "wx/listimpl.cpp"
  84 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  85
  86
  87 //-----------------------------------------------------------------------------
  88 // "switch_page"
  89 //-----------------------------------------------------------------------------
  90
  91 extern "C" {
  92 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  93                                               GtkNotebookPage *WXUNUSED(page),
  94                                               guint page,
  95                                               wxNotebook *notebook )
  96 {
  97     // are you trying to call SetSelection() from a notebook event handler?
  98     // you shouldn't!
  99     wxCHECK_RET( !notebook->m_inSwitchPage,
 100                  _T("gtk_notebook_page_change_callback reentered") );
 101
 102     notebook->m_inSwitchPage = TRUE;
 103     if (g_isIdle)
 104         wxapp_install_idle_handler();
 105
 106     int old = notebook->GetSelection();
 107
 108     wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
 109                                    notebook->GetId(), page, old );
 110     eventChanging.SetEventObject( notebook );
 111
 112     if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
 113          !eventChanging.IsAllowed() )
 114     {
 115         /* program doesn't allow the page change */
 116         g_signal_stop_emission_by_name (notebook->m_widget,
 117                                         "switch_page");
 118     }
 119     else // change allowed
 120     {
 121         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 122         // with wxNotebookEvent::GetSelection()) value even though the page is
 123         // not really changed in GTK+
 124         notebook->m_selection = page;
 125
 126         wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
 127                                       notebook->GetId(), page, old );
 128         eventChanged.SetEventObject( notebook );
 129         notebook->GetEventHandler()->ProcessEvent( eventChanged );
 130     }
 131
 132     notebook->m_inSwitchPage = FALSE;
 133 }
 134 }
 135
 136 //-----------------------------------------------------------------------------
 137 // "size_allocate"
 138 //-----------------------------------------------------------------------------
 139
 140 extern "C" {
 141 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 142 {
 143     if (g_isIdle)
 144         wxapp_install_idle_handler();
 145
 146     if ((win->m_x == alloc->x) &&
 147         (win->m_y == alloc->y) &&
 148         (win->m_width == alloc->width) &&
 149         (win->m_height == alloc->height))
 150     {
 151         return;
 152     }
 153
 154     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 155
 156     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 157        here in order to make repositioning after resizing to take effect. */
 158     if ((gtk_major_version == 1) &&
 159         (gtk_minor_version == 2) &&
 160         (gtk_micro_version < 6) &&
 161         (win->m_wxwindow) &&
 162         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 163     {
 164         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 165     }
 166 }
 167 }
 168
 169 //-----------------------------------------------------------------------------
 170 // "realize" from m_widget
 171 //-----------------------------------------------------------------------------
 172
 173 extern "C" {
 174 static void
 175 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 176 {
 177     if (g_isIdle)
 178         wxapp_install_idle_handler();
 179
 180     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 181        here in order to make repositioning before showing to take effect. */
 182     gtk_widget_queue_resize( win->m_widget );
 183 }
 184 }
 185
 186 //-----------------------------------------------------------------------------
 187 // "key_press_event"
 188 //-----------------------------------------------------------------------------
 189
 190 extern "C" {
 191 static gboolean
 192 gtk_notebook_key_press_callback( GtkWidget   *widget,
 193                                  GdkEventKey *gdk_event,
 194                                  wxNotebook  *notebook )
 195 {
 196     if (g_isIdle)
 197         wxapp_install_idle_handler();
 198
 199     if (!notebook->m_hasVMT) return FALSE;
 200     if (g_blockEventsOnDrag) return FALSE;
 201
 202     /* win is a control: tab can be propagated up */
 203     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 204     {
 205         int page;
 206         int nMax = notebook->GetPageCount();
 207         if ( nMax-- ) // decrement it to get the last valid index
 208         {
 209             int nSel = notebook->GetSelection();
 210
 211             // change selection wrapping if it becomes invalid
 212             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 213                                        : nSel + 1
 214                         : nSel == 0 ? nMax
 215                                     : nSel - 1;
 216         }
 217         else // notebook is empty, no next page
 218         {
 219             return FALSE;
 220         }
 221
 222         // m_selection = page;
 223         gtk_notebook_set_current_page( GTK_NOTEBOOK(widget), page );
 224
 225         g_signal_stop_emission_by_name (widget, "key_press_event");
 226         return TRUE;
 227     }
 228
 229     /* win is a control: tab can be propagated up */
 230     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 231     {
 232         int sel = notebook->GetSelection();
 233         if (sel == -1)
 234             return TRUE;
 235         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 236         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 237
 238         wxNavigationKeyEvent event;
 239         event.SetEventObject( notebook );
 240         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 241         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 242         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 243         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 244                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 245         event.SetCurrentFocus( notebook );
 246
 247         wxNotebookPage *client = notebook->GetPage(sel);
 248         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 249         {
 250              client->SetFocus();
 251         }
 252
 253         g_signal_stop_emission_by_name (widget, "key_press_event");
 254         return TRUE;
 255     }
 256
 257     return FALSE;
 258 }
 259 }
 260
 261 //-----------------------------------------------------------------------------
 262 // InsertChild callback for wxNotebook
 263 //-----------------------------------------------------------------------------
 264
 265 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 266 {
 267     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 268     // widget, and takes care of some details such as updating the state and
 269     // style of the child to reflect its new location.  We do this early
 270     // because without it GetBestSize (which is used to set the initial size
 271     // of controls if an explicit size is not given) will often report
 272     // incorrect sizes since the widget's style context is not fully known.
 273     // See bug #901694 for details
 274     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 275     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 276
 277     // NOTE: This should be considered a temporary workaround until we can
 278     // work out the details and implement delaying the setting of the initial
 279     // size of widgets until the size is really needed.
 280 }
 281
 282 //-----------------------------------------------------------------------------
 283 // wxNotebook
 284 //-----------------------------------------------------------------------------
 285
 286 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 287
 288 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 289     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 290 END_EVENT_TABLE()
 291
 292 void wxNotebook::Init()
 293 {
 294     m_padding = 0;
 295     m_inSwitchPage = FALSE;
 296
 297     m_imageList = (wxImageList *) NULL;
 298     m_selection = -1;
 299     m_themeEnabled = TRUE;
 300 }
 301
 302 wxNotebook::wxNotebook()
 303 {
 304     Init();
 305 }
 306
 307 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 308       const wxPoint& pos, const wxSize& size,
 309       long style, const wxString& name )
 310 {
 311     Init();
 312     Create( parent, id, pos, size, style, name );
 313 }
 314
 315 wxNotebook::~wxNotebook()
 316 {
 317     DeleteAllPages();
 318 }
 319
 320 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 321                         const wxPoint& pos, const wxSize& size,
 322                         long style, const wxString& name )
 323 {
 324     m_needParent = TRUE;
 325     m_acceptsFocus = TRUE;
 326     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 327
 328     if (!PreCreation( parent, pos, size ) ||
 329         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 330     {
 331         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 332         return FALSE;
 333     }
 334
 335
 336     m_widget = gtk_notebook_new();
 337
 338     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 339
 340     g_signal_connect (m_widget, "switch_page",
 341                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 342
 343     m_parent->DoAddChild( this );
 344
 345     if (m_windowStyle & wxBK_RIGHT)
 346         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 347     if (m_windowStyle & wxBK_LEFT)
 348         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 349     if (m_windowStyle & wxBK_BOTTOM)
 350         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 351
 352     g_signal_connect (m_widget, "key_press_event",
 353                       G_CALLBACK (gtk_notebook_key_press_callback), this);
 354
 355     PostCreation(size);
 356
 357     g_signal_connect (m_widget, "realize",
 358                       G_CALLBACK (gtk_notebook_realized_callback), this);
 359
 360     return TRUE;
 361 }
 362
 363 int wxNotebook::GetSelection() const
 364 {
 365     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 366
 367     if ( m_selection == -1 )
 368     {
 369         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 370
 371         if (g_list_length(nb_pages) != 0)
 372         {
 373             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 374
 375             gpointer cur = notebook->cur_page;
 376             if ( cur != NULL )
 377             {
 378                 wxConstCast(this, wxNotebook)->m_selection =
 379                     g_list_index( nb_pages, cur );
 380             }
 381         }
 382     }
 383
 384     return m_selection;
 385 }
 386
 387 wxString wxNotebook::GetPageText( size_t page ) const
 388 {
 389     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 390
 391     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 392     if (nb_page)
 393         return nb_page->m_text;
 394     else
 395         return wxEmptyString;
 396 }
 397
 398 int wxNotebook::GetPageImage( size_t page ) const
 399 {
 400     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 401
 402     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 403     if (nb_page)
 404         return nb_page->m_image;
 405     else
 406         return -1;
 407 }
 408
 409 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 410 {
 411     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 412
 413     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 414
 415     return m_pagesData.Item(page)->GetData();
 416 }
 417
 418 int wxNotebook::SetSelection( size_t page )
 419 {
 420     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 421
 422     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 423
 424     int selOld = GetSelection();
 425
 426     // cache the selection
 427     m_selection = page;
 428     gtk_notebook_set_current_page( GTK_NOTEBOOK(m_widget), page );
 429
 430     wxNotebookPage *client = GetPage(page);
 431     if ( client )
 432         client->SetFocus();
 433
 434     return selOld;
 435 }
 436
 437 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 438 {
 439     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 440
 441     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 442
 443     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 444
 445     nb_page->m_text = text;
 446
 447     gtk_label_set_text( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 448
 449     return TRUE;
 450 }
 451
 452 bool wxNotebook::SetPageImage( size_t page, int image )
 453 {
 454     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 455
 456     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 457
 458     if (!nb_page) return FALSE;
 459
 460     /* Optimization posibility: return immediately if image unchanged.
 461      * Not enabled because it may break existing (stupid) code that
 462      * manipulates the imagelist to cycle images */
 463
 464     /* if (image == nb_page->m_image) return TRUE; */
 465
 466     /* For different cases:
 467        1) no image -> no image
 468        2) image -> no image
 469        3) no image -> image
 470        4) image -> image */
 471
 472     if (image == -1 && nb_page->m_image == -1)
 473         return TRUE; /* Case 1): Nothing to do. */
 474
 475     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 476
 477     if (nb_page->m_image != -1)
 478     {
 479         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 480
 481         GList *child = gtk_container_get_children(GTK_CONTAINER(nb_page->m_box));
 482         while (child)
 483         {
 484             if (GTK_IS_PIXMAP(child->data))
 485             {
 486                 pixmapwid = GTK_WIDGET(child->data);
 487                 break;
 488             }
 489             child = child->next;
 490         }
 491
 492         /* We should have the pixmap widget now */
 493         wxASSERT(pixmapwid != NULL);
 494
 495         if (image == -1)
 496         {
 497             /* If there's no new widget, just remove the old from the box */
 498             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 499             nb_page->m_image = -1;
 500
 501             return TRUE; /* Case 2) */
 502         }
 503     }
 504
 505     /* Only cases 3) and 4) left */
 506     wxASSERT( m_imageList != NULL ); /* Just in case */
 507
 508     /* Construct the new pixmap */
 509     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 510     GdkPixmap *pixmap = bmp->GetPixmap();
 511     GdkBitmap *mask = (GdkBitmap*) NULL;
 512     if ( bmp->GetMask() )
 513     {
 514         mask = bmp->GetMask()->GetBitmap();
 515     }
 516
 517     if (pixmapwid == NULL)
 518     {
 519         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 520         pixmapwid = gtk_pixmap_new (pixmap, mask );
 521
 522         /* CHECKME: Are these pack flags okay? */
 523         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 524         gtk_widget_show(pixmapwid);
 525     }
 526     else
 527     {
 528         /* Case 4) Simply replace the pixmap */
 529         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 530     }
 531
 532     nb_page->m_image = image;
 533
 534     return TRUE;
 535 }
 536
 537 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 538 {
 539     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 540 }
 541
 542 void wxNotebook::SetPadding( const wxSize &padding )
 543 {
 544     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 545
 546     m_padding = padding.GetWidth();
 547
 548     int i;
 549     for (i=0; i<int(GetPageCount()); i++)
 550     {
 551         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 552         wxASSERT(nb_page != NULL);
 553
 554         if (nb_page->m_image != -1)
 555         {
 556             // gtk_box_set_child_packing sets padding on BOTH sides
 557             // icon provides left padding, label provides center and right
 558             int image = nb_page->m_image;
 559             SetPageImage(i,-1);
 560             SetPageImage(i,image);
 561         }
 562         wxASSERT(nb_page->m_label);
 563         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 564                                   GTK_WIDGET(nb_page->m_label),
 565                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 566     }
 567 }
 568
 569 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 570 {
 571     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 572 }
 573
 574 bool wxNotebook::DeleteAllPages()
 575 {
 576     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 577
 578     while (m_pagesData.GetCount() > 0)
 579         DeletePage( m_pagesData.GetCount()-1 );
 580
 581     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 582
 583     InvalidateBestSize();
 584     return wxNotebookBase::DeleteAllPages();
 585 }
 586
 587 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 588 {
 589     if ( m_selection != -1 && (size_t)m_selection >= page )
 590     {
 591         // the index will become invalid after the page is deleted
 592         m_selection = -1;
 593     }
 594
 595     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 596     if ( !client )
 597         return NULL;
 598
 599     gtk_widget_ref( client->m_widget );
 600     gtk_widget_unrealize( client->m_widget );
 601     gtk_widget_unparent( client->m_widget );
 602
 603     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 604     // new page index (when deleting selected page 0, new page is 1 although,
 605     // clearly, the selection should stay 0), so suppress this
 606     g_signal_handlers_disconnect_by_func (m_widget,
 607                                           (gpointer) gtk_notebook_page_change_callback,
 608                                           this);
 609
 610     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 611
 612     g_signal_connect (m_widget, "switch_page",
 613                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 614
 615     wxGtkNotebookPage* p = GetNotebookPage(page);
 616     m_pagesData.DeleteObject(p);
 617     delete p;
 618
 619     return client;
 620 }
 621
 622 bool wxNotebook::InsertPage( size_t position,
 623                              wxNotebookPage* win,
 624                              const wxString& text,
 625                              bool select,
 626                              int imageId )
 627 {
 628     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 629
 630     wxCHECK_MSG( win->GetParent() == this, FALSE,
 631                wxT("Can't add a page whose parent is not the notebook!") );
 632
 633     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 634                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 635
 636     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 637     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 638     // work as it seems to undo too much and will cause errors in the
 639     // gtk_notebook_insert_page below, so instead just clear the parent by
 640     // hand here.
 641     win->m_widget->parent = NULL;
 642
 643     // don't receive switch page during addition
 644     g_signal_handlers_disconnect_by_func (m_widget,
 645                                           (gpointer) gtk_notebook_page_change_callback,
 646                                           this);
 647
 648     if (m_themeEnabled)
 649         win->SetThemeEnabled(TRUE);
 650
 651     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 652
 653     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 654
 655     if ( position == GetPageCount() )
 656         m_pagesData.Append( nb_page );
 657     else
 658         m_pagesData.Insert( position, nb_page );
 659
 660     m_pages.Insert(win, position);
 661
 662     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 663     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 664
 665     g_signal_connect (win->m_widget, "size_allocate",
 666                       G_CALLBACK (gtk_page_size_callback), win);
 667
 668     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 669
 670     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 671
 672     /* set the label image */
 673     nb_page->m_image = imageId;
 674
 675     if (imageId != -1)
 676     {
 677         wxASSERT( m_imageList != NULL );
 678
 679         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 680         GdkPixmap *pixmap = bmp->GetPixmap();
 681         GdkBitmap *mask = (GdkBitmap*) NULL;
 682         if ( bmp->GetMask() )
 683         {
 684             mask = bmp->GetMask()->GetBitmap();
 685         }
 686
 687         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 688
 689         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 690
 691         gtk_widget_show(pixmapwid);
 692     }
 693
 694     /* set the label text */
 695
 696     nb_page->m_text = text;
 697     if (nb_page->m_text.empty()) nb_page->m_text = wxT("");
 698
 699     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 700     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 701
 702     /* apply current style */
 703     GtkRcStyle *style = CreateWidgetStyle();
 704     if ( style )
 705     {
 706         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 707         gtk_rc_style_unref(style);
 708     }
 709
 710     /* show the label */
 711     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 712     if (select && (m_pagesData.GetCount() > 1))
 713     {
 714       SetSelection( position );
 715     }
 716
 717     g_signal_connect (m_widget, "switch_page",
 718                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 719
 720     InvalidateBestSize();
 721     return TRUE;
 722 }
 723
 724 // helper for HitTest(): check if the point lies inside the given widget which
 725 // is the child of the notebook whose position and border size are passed as
 726 // parameters
 727 static bool
 728 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 729                     gint x, gint y, gint border = 0)
 730 {
 731     return
 732         (pt.x >= w->allocation.x - x - border) &&
 733         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 734         (pt.y >= w->allocation.y - y - border) &&
 735         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 736 }
 737
 738 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 739 {
 740     const gint x = m_widget->allocation.x;
 741     const gint y = m_widget->allocation.y;
 742
 743     const size_t count = GetPageCount();
 744     size_t i = 0;
 745
 746     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 747     if (gtk_notebook_get_scrollable(notebook))
 748         i = g_list_position( notebook->children, notebook->first_tab );
 749
 750     for ( ; i < count; i++ )
 751     {
 752         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 753         GtkWidget *box = nb_page->m_box;
 754
 755         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 756
 757         if ( IsPointInsideWidget(pt, box, x, y, border) )
 758         {
 759             // ok, we're inside this tab -- now find out where, if needed
 760             if ( flags )
 761             {
 762                 GtkWidget *pixmap = NULL;
 763
 764                 GList *children = gtk_container_get_children(GTK_CONTAINER(box));
 765                 for ( GList *child = children; child; child = child->next )
 766                 {
 767                     if ( GTK_IS_PIXMAP(child->data) )
 768                     {
 769                         pixmap = GTK_WIDGET(child->data);
 770                         break;
 771                     }
 772                 }
 773
 774                 if ( children )
 775                     g_list_free(children);
 776
 777                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 778                 {
 779                     *flags = wxNB_HITTEST_ONICON;
 780                 }
 781                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 782                 {
 783                     *flags = wxNB_HITTEST_ONLABEL;
 784                 }
 785                 else
 786                 {
 787                     *flags = wxNB_HITTEST_ONITEM;
 788                 }
 789             }
 790
 791             return i;
 792         }
 793     }
 794
 795     if ( flags )
 796         *flags = wxNB_HITTEST_NOWHERE;
 797
 798     return wxNOT_FOUND;
 799 }
 800
 801 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 802 {
 803     if (event.IsWindowChange())
 804         AdvanceSelection( event.GetDirection() );
 805     else
 806         event.Skip();
 807 }
 808
 809 #if wxUSE_CONSTRAINTS
 810
 811 // override these 2 functions to do nothing: everything is done in OnSize
 812 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 813 {
 814     // don't set the sizes of the pages - their correct size is not yet known
 815     wxControl::SetConstraintSizes(FALSE);
 816 }
 817
 818 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 819 {
 820     return TRUE;
 821 }
 822
 823 #endif
 824
 825 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 826 {
 827     gtk_widget_modify_style(m_widget, style);
 828     size_t cnt = m_pagesData.GetCount();
 829     for (size_t i = 0; i < cnt; i++)
 830         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 831 }
 832
 833 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 834 {
 835     return ((m_widget->window == window) ||
 836             GTK_NOTEBOOK(m_widget)->event_window == window);
 837 }
 838
 839 // static
 840 wxVisualAttributes
 841 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 842 {
 843     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 844 }
 845
 846 //-----------------------------------------------------------------------------
 847 // wxNotebookEvent
 848 //-----------------------------------------------------------------------------
 849
 850 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 851
 852 #endif