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