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 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #include "wx/notebook.h"
  14
  15 #if wxUSE_NOTEBOOK
  16
  17 #include "wx/panel.h"
  18 #include "wx/utils.h"
  19 #include "wx/imaglist.h"
  20 #include "wx/intl.h"
  21 #include "wx/log.h"
  22 #include "wx/bitmap.h"
  23 #include "wx/fontutil.h"
  24
  25 // FIXME: Use GtkImage instead of GtkPixmap. Don't use gtk_container_border_width
  26 #include <gtk/gtkversion.h>
  27 #ifdef GTK_DISABLE_DEPRECATED
  28 #undef GTK_DISABLE_DEPRECATED
  29 #endif
  30
  31 #include "wx/gtk/private.h"
  32 #include "wx/gtk/win_gtk.h"
  33
  34 #include <gdk/gdkkeysyms.h>
  35
  36 #include "wx/msgdlg.h"
  37
  38 // ----------------------------------------------------------------------------
  39 // events
  40 // ----------------------------------------------------------------------------
  41
  42 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  43 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  44
  45 //-----------------------------------------------------------------------------
  46 // idle system
  47 //-----------------------------------------------------------------------------
  48
  49 extern void wxapp_install_idle_handler();
  50 extern bool g_isIdle;
  51
  52 //-----------------------------------------------------------------------------
  53 // data
  54 //-----------------------------------------------------------------------------
  55
  56 extern bool g_blockEventsOnDrag;
  57
  58 //-----------------------------------------------------------------------------
  59 // wxGtkNotebookPage
  60 //-----------------------------------------------------------------------------
  61
  62 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  63 //     allows us to have quite a few functions implemented in the base class)
  64 //     but the page data is kept in a separate list, so we must maintain them
  65 //     in sync manually... of course, the list had been there before the base
  66 //     class which explains it but it still would be nice to do something
  67 //     about this one day
  68
  69 class wxGtkNotebookPage: public wxObject
  70 {
  71 public:
  72     wxGtkNotebookPage()
  73     {
  74         m_image = -1;
  75         m_page = (GtkNotebookPage *) NULL;
  76         m_box = (GtkWidget *) NULL;
  77     }
  78
  79     wxString           m_text;
  80     int                m_image;
  81     GtkNotebookPage   *m_page;
  82     GtkLabel          *m_label;
  83     GtkWidget         *m_box;     // in which the label and image are packed
  84 };
  85
  86
  87 #include "wx/listimpl.cpp"
  88 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  89
  90
  91 //-----------------------------------------------------------------------------
  92 // "switch_page"
  93 //-----------------------------------------------------------------------------
  94
  95 extern "C" {
  96 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  97                                               GtkNotebookPage *WXUNUSED(page),
  98                                               guint page,
  99                                               wxNotebook *notebook )
 100 {
 101     // are you trying to call SetSelection() from a notebook event handler?
 102     // you shouldn't!
 103     wxCHECK_RET( !notebook->m_inSwitchPage,
 104                  _T("gtk_notebook_page_change_callback reentered") );
 105
 106     notebook->m_inSwitchPage = TRUE;
 107     if (g_isIdle)
 108         wxapp_install_idle_handler();
 109
 110     int old = notebook->GetSelection();
 111
 112     wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
 113                                    notebook->GetId(), page, old );
 114     eventChanging.SetEventObject( notebook );
 115
 116     if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
 117          !eventChanging.IsAllowed() )
 118     {
 119         /* program doesn't allow the page change */
 120         g_signal_stop_emission_by_name (notebook->m_widget,
 121                                         "switch_page");
 122     }
 123     else // change allowed
 124     {
 125         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 126         // with wxNotebookEvent::GetSelection()) value even though the page is
 127         // not really changed in GTK+
 128         notebook->m_selection = page;
 129
 130         wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
 131                                       notebook->GetId(), page, old );
 132         eventChanged.SetEventObject( notebook );
 133         notebook->GetEventHandler()->ProcessEvent( eventChanged );
 134     }
 135
 136     notebook->m_inSwitchPage = FALSE;
 137 }
 138 }
 139
 140 //-----------------------------------------------------------------------------
 141 // "size_allocate"
 142 //-----------------------------------------------------------------------------
 143
 144 extern "C" {
 145 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 146 {
 147     if (g_isIdle)
 148         wxapp_install_idle_handler();
 149
 150     if ((win->m_x == alloc->x) &&
 151         (win->m_y == alloc->y) &&
 152         (win->m_width == alloc->width) &&
 153         (win->m_height == alloc->height))
 154     {
 155         return;
 156     }
 157
 158     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 159
 160     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 161        here in order to make repositioning after resizing to take effect. */
 162     if ((gtk_major_version == 1) &&
 163         (gtk_minor_version == 2) &&
 164         (gtk_micro_version < 6) &&
 165         (win->m_wxwindow) &&
 166         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 167     {
 168         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 169     }
 170 }
 171 }
 172
 173 //-----------------------------------------------------------------------------
 174 // "realize" from m_widget
 175 //-----------------------------------------------------------------------------
 176
 177 extern "C" {
 178 static void
 179 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 180 {
 181     if (g_isIdle)
 182         wxapp_install_idle_handler();
 183
 184     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 185        here in order to make repositioning before showing to take effect. */
 186     gtk_widget_queue_resize( win->m_widget );
 187 }
 188 }
 189
 190 //-----------------------------------------------------------------------------
 191 // "key_press_event"
 192 //-----------------------------------------------------------------------------
 193
 194 extern "C" {
 195 static gboolean
 196 gtk_notebook_key_press_callback( GtkWidget   *widget,
 197                                  GdkEventKey *gdk_event,
 198                                  wxNotebook  *notebook )
 199 {
 200     if (g_isIdle)
 201         wxapp_install_idle_handler();
 202
 203     if (!notebook->m_hasVMT) return FALSE;
 204     if (g_blockEventsOnDrag) return FALSE;
 205
 206     /* win is a control: tab can be propagated up */
 207     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 208     {
 209         int page;
 210         int nMax = notebook->GetPageCount();
 211         if ( nMax-- ) // decrement it to get the last valid index
 212         {
 213             int nSel = notebook->GetSelection();
 214
 215             // change selection wrapping if it becomes invalid
 216             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 217                                        : nSel + 1
 218                         : nSel == 0 ? nMax
 219                                     : nSel - 1;
 220         }
 221         else // notebook is empty, no next page
 222         {
 223             return FALSE;
 224         }
 225
 226         // m_selection = page;
 227         gtk_notebook_set_current_page( GTK_NOTEBOOK(widget), page );
 228
 229         g_signal_stop_emission_by_name (widget, "key_press_event");
 230         return TRUE;
 231     }
 232
 233     /* win is a control: tab can be propagated up */
 234     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 235     {
 236         int sel = notebook->GetSelection();
 237         if (sel == -1)
 238             return TRUE;
 239         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 240         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 241
 242         wxNavigationKeyEvent event;
 243         event.SetEventObject( notebook );
 244         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 245         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 246         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 247         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 248                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 249         event.SetCurrentFocus( notebook );
 250
 251         wxNotebookPage *client = notebook->GetPage(sel);
 252         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 253         {
 254              client->SetFocus();
 255         }
 256
 257         g_signal_stop_emission_by_name (widget, "key_press_event");
 258         return TRUE;
 259     }
 260
 261     return FALSE;
 262 }
 263 }
 264
 265 //-----------------------------------------------------------------------------
 266 // InsertChild callback for wxNotebook
 267 //-----------------------------------------------------------------------------
 268
 269 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 270 {
 271     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 272     // widget, and takes care of some details such as updating the state and
 273     // style of the child to reflect its new location.  We do this early
 274     // because without it GetBestSize (which is used to set the initial size
 275     // of controls if an explicit size is not given) will often report
 276     // incorrect sizes since the widget's style context is not fully known.
 277     // See bug #901694 for details
 278     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 279     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 280
 281     // NOTE: This should be considered a temporary workaround until we can
 282     // work out the details and implement delaying the setting of the initial
 283     // size of widgets until the size is really needed.
 284 }
 285
 286 //-----------------------------------------------------------------------------
 287 // wxNotebook
 288 //-----------------------------------------------------------------------------
 289
 290 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 291
 292 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 293     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 294 END_EVENT_TABLE()
 295
 296 void wxNotebook::Init()
 297 {
 298     m_padding = 0;
 299     m_inSwitchPage = FALSE;
 300
 301     m_imageList = (wxImageList *) NULL;
 302     m_selection = -1;
 303     m_themeEnabled = TRUE;
 304 }
 305
 306 wxNotebook::wxNotebook()
 307 {
 308     Init();
 309 }
 310
 311 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 312       const wxPoint& pos, const wxSize& size,
 313       long style, const wxString& name )
 314 {
 315     Init();
 316     Create( parent, id, pos, size, style, name );
 317 }
 318
 319 wxNotebook::~wxNotebook()
 320 {
 321     DeleteAllPages();
 322 }
 323
 324 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 325                         const wxPoint& pos, const wxSize& size,
 326                         long style, const wxString& name )
 327 {
 328     m_needParent = TRUE;
 329     m_acceptsFocus = TRUE;
 330     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 331
 332     if (!PreCreation( parent, pos, size ) ||
 333         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 334     {
 335         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 336         return FALSE;
 337     }
 338
 339
 340     m_widget = gtk_notebook_new();
 341
 342     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 343
 344     g_signal_connect (m_widget, "switch_page",
 345                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 346
 347     m_parent->DoAddChild( this );
 348
 349     if (m_windowStyle & wxBK_RIGHT)
 350         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 351     if (m_windowStyle & wxBK_LEFT)
 352         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 353     if (m_windowStyle & wxBK_BOTTOM)
 354         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 355
 356     g_signal_connect (m_widget, "key_press_event",
 357                       G_CALLBACK (gtk_notebook_key_press_callback), this);
 358
 359     PostCreation(size);
 360
 361     g_signal_connect (m_widget, "realize",
 362                       G_CALLBACK (gtk_notebook_realized_callback), this);
 363
 364     return TRUE;
 365 }
 366
 367 int wxNotebook::GetSelection() const
 368 {
 369     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 370
 371     if ( m_selection == -1 )
 372     {
 373         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 374
 375         if (g_list_length(nb_pages) != 0)
 376         {
 377             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 378
 379             gpointer cur = notebook->cur_page;
 380             if ( cur != NULL )
 381             {
 382                 wxConstCast(this, wxNotebook)->m_selection =
 383                     g_list_index( nb_pages, cur );
 384             }
 385         }
 386     }
 387
 388     return m_selection;
 389 }
 390
 391 wxString wxNotebook::GetPageText( size_t page ) const
 392 {
 393     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid notebook") );
 394
 395     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 396     if (nb_page)
 397         return nb_page->m_text;
 398     else
 399         return wxT("");
 400 }
 401
 402 int wxNotebook::GetPageImage( size_t page ) const
 403 {
 404     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 405
 406     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 407     if (nb_page)
 408         return nb_page->m_image;
 409     else
 410         return -1;
 411 }
 412
 413 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 414 {
 415     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 416
 417     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 418
 419     return m_pagesData.Item(page)->GetData();
 420 }
 421
 422 int wxNotebook::SetSelection( size_t page )
 423 {
 424     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 425
 426     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 427
 428     int selOld = GetSelection();
 429
 430     // cache the selection
 431     m_selection = page;
 432     gtk_notebook_set_current_page( GTK_NOTEBOOK(m_widget), page );
 433
 434     wxNotebookPage *client = GetPage(page);
 435     if ( client )
 436         client->SetFocus();
 437
 438     return selOld;
 439 }
 440
 441 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 442 {
 443     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 444
 445     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 446
 447     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 448
 449     nb_page->m_text = text;
 450
 451     gtk_label_set_text( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 452
 453     return TRUE;
 454 }
 455
 456 bool wxNotebook::SetPageImage( size_t page, int image )
 457 {
 458     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 459
 460     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 461
 462     if (!nb_page) return FALSE;
 463
 464     /* Optimization posibility: return immediately if image unchanged.
 465      * Not enabled because it may break existing (stupid) code that
 466      * manipulates the imagelist to cycle images */
 467
 468     /* if (image == nb_page->m_image) return TRUE; */
 469
 470     /* For different cases:
 471        1) no image -> no image
 472        2) image -> no image
 473        3) no image -> image
 474        4) image -> image */
 475
 476     if (image == -1 && nb_page->m_image == -1)
 477         return TRUE; /* Case 1): Nothing to do. */
 478
 479     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 480
 481     if (nb_page->m_image != -1)
 482     {
 483         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 484
 485         GList *child = gtk_container_get_children(GTK_CONTAINER(nb_page->m_box));
 486         while (child)
 487         {
 488             if (GTK_IS_PIXMAP(child->data))
 489             {
 490                 pixmapwid = GTK_WIDGET(child->data);
 491                 break;
 492             }
 493             child = child->next;
 494         }
 495
 496         /* We should have the pixmap widget now */
 497         wxASSERT(pixmapwid != NULL);
 498
 499         if (image == -1)
 500         {
 501             /* If there's no new widget, just remove the old from the box */
 502             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 503             nb_page->m_image = -1;
 504
 505             return TRUE; /* Case 2) */
 506         }
 507     }
 508
 509     /* Only cases 3) and 4) left */
 510     wxASSERT( m_imageList != NULL ); /* Just in case */
 511
 512     /* Construct the new pixmap */
 513     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 514     GdkPixmap *pixmap = bmp->GetPixmap();
 515     GdkBitmap *mask = (GdkBitmap*) NULL;
 516     if ( bmp->GetMask() )
 517     {
 518         mask = bmp->GetMask()->GetBitmap();
 519     }
 520
 521     if (pixmapwid == NULL)
 522     {
 523         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 524         pixmapwid = gtk_pixmap_new (pixmap, mask );
 525
 526         /* CHECKME: Are these pack flags okay? */
 527         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 528         gtk_widget_show(pixmapwid);
 529     }
 530     else
 531     {
 532         /* Case 4) Simply replace the pixmap */
 533         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 534     }
 535
 536     nb_page->m_image = image;
 537
 538     return TRUE;
 539 }
 540
 541 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 542 {
 543     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 544 }
 545
 546 void wxNotebook::SetPadding( const wxSize &padding )
 547 {
 548     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 549
 550     m_padding = padding.GetWidth();
 551
 552     int i;
 553     for (i=0; i<int(GetPageCount()); i++)
 554     {
 555         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 556         wxASSERT(nb_page != NULL);
 557
 558         if (nb_page->m_image != -1)
 559         {
 560             // gtk_box_set_child_packing sets padding on BOTH sides
 561             // icon provides left padding, label provides center and right
 562             int image = nb_page->m_image;
 563             SetPageImage(i,-1);
 564             SetPageImage(i,image);
 565         }
 566         wxASSERT(nb_page->m_label);
 567         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 568                                   GTK_WIDGET(nb_page->m_label),
 569                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 570     }
 571 }
 572
 573 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 574 {
 575     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 576 }
 577
 578 bool wxNotebook::DeleteAllPages()
 579 {
 580     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 581
 582     while (m_pagesData.GetCount() > 0)
 583         DeletePage( m_pagesData.GetCount()-1 );
 584
 585     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 586
 587     InvalidateBestSize();
 588     return wxNotebookBase::DeleteAllPages();
 589 }
 590
 591 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 592 {
 593     if ( m_selection != -1 && (size_t)m_selection >= page )
 594     {
 595         // the index will become invalid after the page is deleted
 596         m_selection = -1;
 597     }
 598
 599     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 600     if ( !client )
 601         return NULL;
 602
 603     gtk_widget_ref( client->m_widget );
 604     gtk_widget_unrealize( client->m_widget );
 605     gtk_widget_unparent( client->m_widget );
 606
 607     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 608     // new page index (when deleting selected page 0, new page is 1 although,
 609     // clearly, the selection should stay 0), so suppress this
 610     g_signal_handlers_disconnect_by_func (m_widget,
 611                                           (gpointer) gtk_notebook_page_change_callback,
 612                                           this);
 613
 614     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 615
 616     g_signal_connect (m_widget, "switch_page",
 617                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 618
 619     wxGtkNotebookPage* p = GetNotebookPage(page);
 620     m_pagesData.DeleteObject(p);
 621     delete p;
 622
 623     return client;
 624 }
 625
 626 bool wxNotebook::InsertPage( size_t position,
 627                              wxNotebookPage* win,
 628                              const wxString& text,
 629                              bool select,
 630                              int imageId )
 631 {
 632     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 633
 634     wxCHECK_MSG( win->GetParent() == this, FALSE,
 635                wxT("Can't add a page whose parent is not the notebook!") );
 636
 637     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 638                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 639
 640     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 641     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 642     // work as it seems to undo too much and will cause errors in the
 643     // gtk_notebook_insert_page below, so instead just clear the parent by
 644     // hand here.
 645     win->m_widget->parent = NULL;
 646
 647     // don't receive switch page during addition
 648     g_signal_handlers_disconnect_by_func (m_widget,
 649                                           (gpointer) gtk_notebook_page_change_callback,
 650                                           this);
 651
 652     if (m_themeEnabled)
 653         win->SetThemeEnabled(TRUE);
 654
 655     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 656
 657     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 658
 659     if ( position == GetPageCount() )
 660         m_pagesData.Append( nb_page );
 661     else
 662         m_pagesData.Insert( position, nb_page );
 663
 664     m_pages.Insert(win, position);
 665
 666     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 667     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 668
 669     g_signal_connect (win->m_widget, "size_allocate",
 670                       G_CALLBACK (gtk_page_size_callback), win);
 671
 672     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 673
 674     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 675
 676     /* set the label image */
 677     nb_page->m_image = imageId;
 678
 679     if (imageId != -1)
 680     {
 681         wxASSERT( m_imageList != NULL );
 682
 683         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 684         GdkPixmap *pixmap = bmp->GetPixmap();
 685         GdkBitmap *mask = (GdkBitmap*) NULL;
 686         if ( bmp->GetMask() )
 687         {
 688             mask = bmp->GetMask()->GetBitmap();
 689         }
 690
 691         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 692
 693         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 694
 695         gtk_widget_show(pixmapwid);
 696     }
 697
 698     /* set the label text */
 699
 700     nb_page->m_text = text;
 701     if (nb_page->m_text.IsEmpty()) nb_page->m_text = wxT("");
 702
 703     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 704     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 705
 706     /* apply current style */
 707     GtkRcStyle *style = CreateWidgetStyle();
 708     if ( style )
 709     {
 710         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 711         gtk_rc_style_unref(style);
 712     }
 713
 714     /* show the label */
 715     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 716     if (select && (m_pagesData.GetCount() > 1))
 717     {
 718       SetSelection( position );
 719     }
 720
 721     g_signal_connect (m_widget, "switch_page",
 722                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 723
 724     InvalidateBestSize();
 725     return TRUE;
 726 }
 727
 728 // helper for HitTest(): check if the point lies inside the given widget which
 729 // is the child of the notebook whose position and border size are passed as
 730 // parameters
 731 static bool
 732 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 733                     gint x, gint y, gint border = 0)
 734 {
 735     return
 736         (pt.x >= w->allocation.x - x - border) &&
 737         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 738         (pt.y >= w->allocation.y - y - border) &&
 739         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 740 }
 741
 742 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 743 {
 744     const gint x = m_widget->allocation.x;
 745     const gint y = m_widget->allocation.y;
 746
 747     const size_t count = GetPageCount();
 748     size_t i = 0;
 749
 750     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 751     if (gtk_notebook_get_scrollable(notebook));
 752         i = g_list_position( notebook->children, notebook->first_tab );
 753
 754     for ( ; i < count; i++ )
 755     {
 756         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 757         GtkWidget *box = nb_page->m_box;
 758
 759         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 760
 761         if ( IsPointInsideWidget(pt, box, x, y, border) )
 762         {
 763             // ok, we're inside this tab -- now find out where, if needed
 764             if ( flags )
 765             {
 766                 GtkWidget *pixmap = NULL;
 767
 768                 GList *children = gtk_container_get_children(GTK_CONTAINER(box));
 769                 for ( GList *child = children; child; child = child->next )
 770                 {
 771                     if ( GTK_IS_PIXMAP(child->data) )
 772                     {
 773                         pixmap = GTK_WIDGET(child->data);
 774                         break;
 775                     }
 776                 }
 777
 778                 if ( children )
 779                     g_list_free(children);
 780
 781                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 782                 {
 783                     *flags = wxNB_HITTEST_ONICON;
 784                 }
 785                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 786                 {
 787                     *flags = wxNB_HITTEST_ONLABEL;
 788                 }
 789                 else
 790                 {
 791                     *flags = wxNB_HITTEST_ONITEM;
 792                 }
 793             }
 794
 795             return i;
 796         }
 797     }
 798
 799     if ( flags )
 800         *flags = wxNB_HITTEST_NOWHERE;
 801
 802     return wxNOT_FOUND;
 803 }
 804
 805 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 806 {
 807     if (event.IsWindowChange())
 808         AdvanceSelection( event.GetDirection() );
 809     else
 810         event.Skip();
 811 }
 812
 813 #if wxUSE_CONSTRAINTS
 814
 815 // override these 2 functions to do nothing: everything is done in OnSize
 816 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 817 {
 818     // don't set the sizes of the pages - their correct size is not yet known
 819     wxControl::SetConstraintSizes(FALSE);
 820 }
 821
 822 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 823 {
 824     return TRUE;
 825 }
 826
 827 #endif
 828
 829 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 830 {
 831     gtk_widget_modify_style(m_widget, style);
 832     size_t cnt = m_pagesData.GetCount();
 833     for (size_t i = 0; i < cnt; i++)
 834         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 835 }
 836
 837 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 838 {
 839     return ((m_widget->window == window) ||
 840             GTK_NOTEBOOK(m_widget)->event_window == window);
 841 }
 842
 843 // static
 844 wxVisualAttributes
 845 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 846 {
 847     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 848 }
 849
 850 //-----------------------------------------------------------------------------
 851 // wxNotebookEvent
 852 //-----------------------------------------------------------------------------
 853
 854 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 855
 856 #endif