src/gtk1/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/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/panel.h"
  22     #include "wx/msgdlg.h"
  23     #include "wx/bitmap.h"
  24 #endif
  25
  26 #include "wx/imaglist.h"
  27 #include "wx/fontutil.h"
  28
  29 #include "wx/gtk1/private.h"
  30 #include "wx/gtk1/win_gtk.h"
  31
  32 #include <gdk/gdkkeysyms.h>
  33
  34 //-----------------------------------------------------------------------------
  35 // idle system
  36 //-----------------------------------------------------------------------------
  37
  38 extern void wxapp_install_idle_handler();
  39 extern bool g_isIdle;
  40
  41 //-----------------------------------------------------------------------------
  42 // data
  43 //-----------------------------------------------------------------------------
  44
  45 extern bool g_blockEventsOnDrag;
  46
  47 //-----------------------------------------------------------------------------
  48 // wxGtkNotebookPage
  49 //-----------------------------------------------------------------------------
  50
  51 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  52 //     allows us to have quite a few functions implemented in the base class)
  53 //     but the page data is kept in a separate list, so we must maintain them
  54 //     in sync manually... of course, the list had been there before the base
  55 //     class which explains it but it still would be nice to do something
  56 //     about this one day
  57
  58 class wxGtkNotebookPage: public wxObject
  59 {
  60 public:
  61     wxGtkNotebookPage()
  62     {
  63         m_image = -1;
  64         m_page = NULL;
  65         m_box = NULL;
  66     }
  67
  68     wxString           m_text;
  69     int                m_image;
  70     GtkNotebookPage   *m_page;
  71     GtkLabel          *m_label;
  72     GtkWidget         *m_box;     // in which the label and image are packed
  73 };
  74
  75
  76 #include "wx/listimpl.cpp"
  77 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  78
  79
  80 //-----------------------------------------------------------------------------
  81 // "switch_page"
  82 //-----------------------------------------------------------------------------
  83
  84 extern "C" {
  85 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  86                                               GtkNotebookPage *WXUNUSED(page),
  87                                               gint page,
  88                                               wxNotebook *notebook )
  89 {
  90     // are you trying to call SetSelection() from a notebook event handler?
  91     // you shouldn't!
  92     wxCHECK_RET( !notebook->m_inSwitchPage,
  93                  wxT("gtk_notebook_page_change_callback reentered") );
  94
  95     notebook->m_inSwitchPage = true;
  96     if (g_isIdle)
  97         wxapp_install_idle_handler();
  98
  99     int old = notebook->GetSelection();
 100
 101     if (notebook->m_skipNextPageChangeEvent)
 102     {
 103         // this event was programmatically generated by ChangeSelection() and thus must
 104         // be skipped
 105         notebook->m_skipNextPageChangeEvent = false;
 106
 107         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 108         // with wxBookCtrlEvent::GetSelection()) value even though the page is
 109         // not really changed in GTK+
 110         notebook->SetSelection(page);
 111     }
 112     else
 113     {
 114         if ( !notebook->SendPageChangingEvent(page) )
 115         {
 116             // program doesn't allow the page change
 117             gtk_signal_emit_stop_by_name(GTK_OBJECT(notebook->m_widget), "switch_page");
 118         }
 119         else // change allowed
 120         {
 121             // make wxNotebook::GetSelection() return the correct (i.e. consistent
 122             // with wxBookCtrlEvent::GetSelection()) value even though the page is
 123             // not really changed in GTK+
 124             notebook->SetSelection(page);
 125
 126             notebook->SendPageChangedEvent(old);
 127         }
 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_page( GTK_NOTEBOOK(widget), page );
 221
 222         gtk_signal_emit_stop_by_name( GTK_OBJECT(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 == wxNOT_FOUND)
 231             return TRUE;
 232         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 233         wxCHECK_MSG( nb_page, FALSE, wxT("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->HandleWindowEvent( event ) )
 246         {
 247              client->SetFocus();
 248         }
 249
 250         gtk_signal_emit_stop_by_name( GTK_OBJECT(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 BEGIN_EVENT_TABLE(wxNotebook, wxBookCtrlBase)
 284     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 285 END_EVENT_TABLE()
 286
 287 void wxNotebook::Init()
 288 {
 289     m_padding = 0;
 290     m_inSwitchPage = false;
 291
 292     m_themeEnabled = true;
 293 }
 294
 295 wxNotebook::wxNotebook()
 296 {
 297     Init();
 298 }
 299
 300 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 301       const wxPoint& pos, const wxSize& size,
 302       long style, const wxString& name )
 303 {
 304     Init();
 305     Create( parent, id, pos, size, style, name );
 306 }
 307
 308 wxNotebook::~wxNotebook()
 309 {
 310     DeleteAllPages();
 311 }
 312
 313 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 314                         const wxPoint& pos, const wxSize& size,
 315                         long style, const wxString& name )
 316 {
 317     m_needParent = true;
 318     m_acceptsFocus = true;
 319     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 320
 321     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 322         style |= wxBK_TOP;
 323
 324     if (!PreCreation( parent, pos, size ) ||
 325         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 326     {
 327         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 328         return false;
 329     }
 330
 331
 332     m_widget = gtk_notebook_new();
 333
 334     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 335
 336     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 337       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 338
 339     m_parent->DoAddChild( this );
 340
 341     if (m_windowStyle & wxBK_RIGHT)
 342         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 343     if (m_windowStyle & wxBK_LEFT)
 344         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 345     if (m_windowStyle & wxBK_BOTTOM)
 346         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 347
 348     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 349       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 350
 351     PostCreation(size);
 352
 353     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 354                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 355
 356     return true;
 357 }
 358
 359 int wxNotebook::GetSelection() const
 360 {
 361     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid notebook") );
 362
 363     if ( m_selection == wxNOT_FOUND )
 364     {
 365         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 366
 367         if (g_list_length(nb_pages) != 0)
 368         {
 369             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 370
 371             gpointer cur = notebook->cur_page;
 372             if ( cur != NULL )
 373             {
 374                 const_cast<wxNotebook *>(this)->
 375                     SetSelection(g_list_index( nb_pages, cur ));
 376             }
 377         }
 378     }
 379
 380     return m_selection;
 381 }
 382
 383 wxString wxNotebook::GetPageText( size_t page ) const
 384 {
 385     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 386
 387     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 388     if (nb_page)
 389         return nb_page->m_text;
 390     else
 391         return wxEmptyString;
 392 }
 393
 394 int wxNotebook::GetPageImage( size_t page ) const
 395 {
 396     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 397
 398     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 399     if (nb_page)
 400         return nb_page->m_image;
 401     else
 402         return -1;
 403 }
 404
 405 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 406 {
 407     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid notebook") );
 408
 409     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), NULL, wxT("invalid notebook index") );
 410
 411     return m_pagesData.Item(page)->GetData();
 412 }
 413
 414 int wxNotebook::DoSetSelection( size_t page, int flags )
 415 {
 416     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid notebook") );
 417
 418     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 419
 420     int selOld = GetSelection();
 421
 422     if ( !(flags & SetSelection_SendEvent) )
 423         m_skipNextPageChangeEvent = true;
 424
 425     // cache the selection
 426     m_selection = page;
 427     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 428
 429     // gtk_notebook_set_current_page is supposed to emit the switch-page signal
 430     // which should be caught by our gtk_notebook_page_change_callback which
 431     // should have reset the flag to false, check it:
 432     wxASSERT_LEVEL_2_MSG(
 433         (flags & SetSelection_SendEvent) || !m_skipNextPageChangeEvent,
 434         "internal error in selection events generation"
 435     );
 436
 437     wxNotebookPage *client = GetPage(page);
 438     if ( client )
 439         client->SetFocus();
 440
 441     return selOld;
 442 }
 443
 444 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 445 {
 446     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 447
 448     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 449
 450     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 451
 452     nb_page->m_text = text;
 453
 454     gtk_label_set( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 455
 456     return true;
 457 }
 458
 459 bool wxNotebook::SetPageImage( size_t page, int image )
 460 {
 461     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 462
 463     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 464
 465     if (!nb_page) return FALSE;
 466
 467     /* Optimization posibility: return immediately if image unchanged.
 468      * Not enabled because it may break existing (stupid) code that
 469      * manipulates the imagelist to cycle images */
 470
 471     /* if (image == nb_page->m_image) return true; */
 472
 473     /* For different cases:
 474        1) no image -> no image
 475        2) image -> no image
 476        3) no image -> image
 477        4) image -> image */
 478
 479     if (image == -1 && nb_page->m_image == -1)
 480         return true; /* Case 1): Nothing to do. */
 481
 482     GtkWidget *pixmapwid = NULL;
 483
 484     if (nb_page->m_image != -1)
 485     {
 486         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 487
 488         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 489         while (child)
 490         {
 491             if (GTK_IS_PIXMAP(child->data))
 492             {
 493                 pixmapwid = GTK_WIDGET(child->data);
 494                 break;
 495             }
 496             child = child->next;
 497         }
 498
 499         /* We should have the pixmap widget now */
 500         wxASSERT(pixmapwid != NULL);
 501
 502         if (image == -1)
 503         {
 504             /* If there's no new widget, just remove the old from the box */
 505             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 506             nb_page->m_image = -1;
 507
 508             return true; /* Case 2) */
 509         }
 510     }
 511
 512     /* Only cases 3) and 4) left */
 513     wxASSERT( HasImageList() ); /* Just in case */
 514
 515     /* Construct the new pixmap */
 516     const wxBitmap *bmp = GetImageList()->GetBitmapPtr(image);
 517     GdkPixmap *pixmap = bmp->GetPixmap();
 518     GdkBitmap *mask = NULL;
 519     if ( bmp->GetMask() )
 520     {
 521         mask = bmp->GetMask()->GetBitmap();
 522     }
 523
 524     if (pixmapwid == NULL)
 525     {
 526         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 527         pixmapwid = gtk_pixmap_new (pixmap, mask );
 528
 529         /* CHECKME: Are these pack flags okay? */
 530         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 531         gtk_widget_show(pixmapwid);
 532     }
 533     else
 534     {
 535         /* Case 4) Simply replace the pixmap */
 536         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 537     }
 538
 539     nb_page->m_image = image;
 540
 541     return true;
 542 }
 543
 544 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 545 {
 546     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 547 }
 548
 549 void wxNotebook::SetPadding( const wxSize &padding )
 550 {
 551     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 552
 553     m_padding = padding.GetWidth();
 554
 555     int i;
 556     for (i=0; i<int(GetPageCount()); i++)
 557     {
 558         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 559         wxASSERT(nb_page != NULL);
 560
 561         if (nb_page->m_image != -1)
 562         {
 563             // gtk_box_set_child_packing sets padding on BOTH sides
 564             // icon provides left padding, label provides center and right
 565             int image = nb_page->m_image;
 566             SetPageImage(i,-1);
 567             SetPageImage(i,image);
 568         }
 569         wxASSERT(nb_page->m_label);
 570         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 571                                   GTK_WIDGET(nb_page->m_label),
 572                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 573     }
 574 }
 575
 576 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 577 {
 578     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 579 }
 580
 581 bool wxNotebook::DeleteAllPages()
 582 {
 583     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 584
 585     while (m_pagesData.GetCount() > 0)
 586         DeletePage( m_pagesData.GetCount()-1 );
 587
 588     wxASSERT_MSG( GetPageCount() == 0, wxT("all pages must have been deleted") );
 589
 590     InvalidateBestSize();
 591     return wxNotebookBase::DeleteAllPages();
 592 }
 593
 594 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 595 {
 596     if ( m_selection != wxNOT_FOUND && (size_t)m_selection >= page )
 597     {
 598         // the index will become invalid after the page is deleted
 599         m_selection = wxNOT_FOUND;
 600     }
 601
 602     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 603     if ( !client )
 604         return NULL;
 605
 606     gtk_widget_ref( client->m_widget );
 607     gtk_widget_unrealize( client->m_widget );
 608     gtk_widget_unparent( client->m_widget );
 609
 610     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 611     // new page index (when deleting selected page 0, new page is 1 although,
 612     // clearly, the selection should stay 0), so suppress this
 613     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 614       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 615
 616     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 617
 618     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 619       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 620
 621     wxGtkNotebookPage* p = GetNotebookPage(page);
 622     m_pagesData.DeleteObject(p);
 623     delete p;
 624
 625     return client;
 626 }
 627
 628 bool wxNotebook::InsertPage( size_t position,
 629                              wxNotebookPage* win,
 630                              const wxString& text,
 631                              bool select,
 632                              int imageId )
 633 {
 634     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 635
 636     wxCHECK_MSG( win->GetParent() == this, FALSE,
 637                wxT("Can't add a page whose parent is not the notebook!") );
 638
 639     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 640                  wxT("invalid page index in wxNotebookPage::InsertPage()") );
 641
 642     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 643     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 644     // work as it seems to undo too much and will cause errors in the
 645     // gtk_notebook_insert_page below, so instead just clear the parent by
 646     // hand here.
 647     win->m_widget->parent = NULL;
 648
 649     // don't receive switch page during addition
 650     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 651       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 652
 653     if (m_themeEnabled)
 654         win->SetThemeEnabled(true);
 655
 656     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 657
 658     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 659
 660     if ( position == GetPageCount() )
 661         m_pagesData.Append( nb_page );
 662     else
 663         m_pagesData.Insert( position, nb_page );
 664
 665     m_pages.Insert(win, position);
 666
 667     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 668     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 669
 670     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 671       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 672
 673     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 674
 675     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 676
 677     /* set the label image */
 678     nb_page->m_image = imageId;
 679
 680     if (imageId != -1)
 681     {
 682         wxASSERT( HasImageList() );
 683
 684         const wxBitmap *bmp = GetImageList()->GetBitmapPtr(imageId);
 685         GdkPixmap *pixmap = bmp->GetPixmap();
 686         GdkBitmap *mask = NULL;
 687         if ( bmp->GetMask() )
 688         {
 689             mask = bmp->GetMask()->GetBitmap();
 690         }
 691
 692         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 693
 694         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 695
 696         gtk_widget_show(pixmapwid);
 697     }
 698
 699     /* set the label text */
 700
 701     nb_page->m_text = text;
 702     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 703
 704     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 705     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 706
 707     /* apply current style */
 708     GtkRcStyle *style = CreateWidgetStyle();
 709     if ( style )
 710     {
 711         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 712         gtk_rc_style_unref(style);
 713     }
 714
 715     /* show the label */
 716     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 717     if (select && (m_pagesData.GetCount() > 1))
 718     {
 719       SetSelection( position );
 720     }
 721
 722     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 723       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 724
 725     InvalidateBestSize();
 726     return true;
 727 }
 728
 729 // helper for HitTest(): check if the point lies inside the given widget which
 730 // is the child of the notebook whose position and border size are passed as
 731 // parameters
 732 static bool
 733 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 734                     gint x, gint y, gint border = 0)
 735 {
 736     return
 737         (pt.x >= w->allocation.x - x - border) &&
 738         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 739         (pt.y >= w->allocation.y - y - border) &&
 740         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 741 }
 742
 743 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 744 {
 745     const gint x = m_widget->allocation.x;
 746     const gint y = m_widget->allocation.y;
 747
 748     const size_t count = GetPageCount();
 749     size_t i = 0;
 750
 751     // MR: Code to fix HitTest index return when tabs are scrolled.
 752     // No idea if it would work for GTK1
 753 #if 0
 754     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 755     if (gtk_notebook_get_scrollable(notebook));
 756         i = g_list_position( notebook->children, notebook->first_tab );
 757 #endif
 758
 759     for ( ; i < count; i++ )
 760     {
 761         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 762         GtkWidget *box = nb_page->m_box;
 763
 764         // VZ: don't know how to find the border width in GTK+ 1.2
 765         const gint border = 0;
 766         if ( IsPointInsideWidget(pt, box, x, y, border) )
 767         {
 768             // ok, we're inside this tab -- now find out where, if needed
 769             if ( flags )
 770             {
 771                 GtkWidget *pixmap = NULL;
 772
 773                 GList *children = gtk_container_children(GTK_CONTAINER(box));
 774                 for ( GList *child = children; child; child = child->next )
 775                 {
 776                     if ( GTK_IS_PIXMAP(child->data) )
 777                     {
 778                         pixmap = GTK_WIDGET(child->data);
 779                         break;
 780                     }
 781                 }
 782
 783                 if ( children )
 784                     g_list_free(children);
 785
 786                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 787                 {
 788                     *flags = wxBK_HITTEST_ONICON;
 789                 }
 790                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 791                 {
 792                     *flags = wxBK_HITTEST_ONLABEL;
 793                 }
 794                 else
 795                 {
 796                     *flags = wxBK_HITTEST_ONITEM;
 797                 }
 798             }
 799
 800             return i;
 801         }
 802     }
 803
 804     if ( flags )
 805         *flags = wxBK_HITTEST_NOWHERE;
 806
 807     return wxNOT_FOUND;
 808 }
 809
 810 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 811 {
 812     if (event.IsWindowChange())
 813         AdvanceSelection( event.GetDirection() );
 814     else
 815         event.Skip();
 816 }
 817
 818 #if wxUSE_CONSTRAINTS
 819
 820 // override these 2 functions to do nothing: everything is done in OnSize
 821 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 822 {
 823     // don't set the sizes of the pages - their correct size is not yet known
 824     wxControl::SetConstraintSizes(FALSE);
 825 }
 826
 827 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 828 {
 829     return true;
 830 }
 831
 832 #endif
 833
 834 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 835 {
 836     gtk_widget_modify_style(m_widget, style);
 837     size_t cnt = m_pagesData.GetCount();
 838     for (size_t i = 0; i < cnt; i++)
 839         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 840 }
 841
 842 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 843 {
 844     return ((m_widget->window == window) ||
 845             (NOTEBOOK_PANEL(m_widget) == window));
 846 }
 847
 848 // static
 849 wxVisualAttributes
 850 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 851 {
 852     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 853 }
 854
 855 #endif