src/gtk1/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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "notebook.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/notebook.h"
  18
  19 #if wxUSE_NOTEBOOK
  20
  21 #include "wx/panel.h"
  22 #include "wx/utils.h"
  23 #include "wx/imaglist.h"
  24 #include "wx/intl.h"
  25 #include "wx/log.h"
  26 #include "wx/bitmap.h"
  27 #include "wx/fontutil.h"
  28
  29 #include "wx/gtk/private.h"
  30 #include "wx/gtk/win_gtk.h"
  31
  32 #include <gdk/gdkkeysyms.h>
  33
  34 #include "wx/msgdlg.h"
  35
  36 // ----------------------------------------------------------------------------
  37 // events
  38 // ----------------------------------------------------------------------------
  39
  40 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  41 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  42
  43 //-----------------------------------------------------------------------------
  44 // idle system
  45 //-----------------------------------------------------------------------------
  46
  47 extern void wxapp_install_idle_handler();
  48 extern bool g_isIdle;
  49
  50 //-----------------------------------------------------------------------------
  51 // data
  52 //-----------------------------------------------------------------------------
  53
  54 extern bool g_blockEventsOnDrag;
  55
  56 //-----------------------------------------------------------------------------
  57 // wxGtkNotebookPage
  58 //-----------------------------------------------------------------------------
  59
  60 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  61 //     allows us to have quite a few functions implemented in the base class)
  62 //     but the page data is kept in a separate list, so we must maintain them
  63 //     in sync manually... of course, the list had been there before the base
  64 //     class which explains it but it still would be nice to do something
  65 //     about this one day
  66
  67 class wxGtkNotebookPage: public wxObject
  68 {
  69 public:
  70     wxGtkNotebookPage()
  71     {
  72         m_image = -1;
  73         m_page = (GtkNotebookPage *) NULL;
  74         m_box = (GtkWidget *) NULL;
  75     }
  76
  77     wxString           m_text;
  78     int                m_image;
  79     GtkNotebookPage   *m_page;
  80     GtkLabel          *m_label;
  81     GtkWidget         *m_box;     // in which the label and image are packed
  82 };
  83
  84
  85 #include "wx/listimpl.cpp"
  86 WX_DEFINE_LIST(wxGtkNotebookPagesList);
  87
  88
  89 //-----------------------------------------------------------------------------
  90 // "switch_page"
  91 //-----------------------------------------------------------------------------
  92
  93 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  94                                               GtkNotebookPage *WXUNUSED(page),
  95                                               gint page,
  96                                               wxNotebook *notebook )
  97 {
  98     // are you trying to call SetSelection() from a notebook event handler?
  99     // you shouldn't!
 100     wxCHECK_RET( !notebook->m_inSwitchPage,
 101                  _T("gtk_notebook_page_change_callback reentered") );
 102
 103     notebook->m_inSwitchPage = TRUE;
 104     if (g_isIdle)
 105         wxapp_install_idle_handler();
 106
 107     int old = notebook->GetSelection();
 108
 109     wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
 110                                    notebook->GetId(), page, old );
 111     eventChanging.SetEventObject( notebook );
 112
 113     if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
 114          !eventChanging.IsAllowed() )
 115     {
 116         /* program doesn't allow the page change */
 117         gtk_signal_emit_stop_by_name( GTK_OBJECT(notebook->m_widget),
 118                                       "switch_page" );
 119     }
 120     else // change allowed
 121     {
 122         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 123         // with wxNotebookEvent::GetSelection()) value even though the page is
 124         // not really changed in GTK+
 125         notebook->m_selection = page;
 126
 127         wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
 128                                       notebook->GetId(), page, old );
 129         eventChanged.SetEventObject( notebook );
 130         notebook->GetEventHandler()->ProcessEvent( eventChanged );
 131     }
 132
 133     notebook->m_inSwitchPage = FALSE;
 134 }
 135
 136 //-----------------------------------------------------------------------------
 137 // "size_allocate"
 138 //-----------------------------------------------------------------------------
 139
 140 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 141 {
 142     if (g_isIdle)
 143         wxapp_install_idle_handler();
 144
 145     if ((win->m_x == alloc->x) &&
 146         (win->m_y == alloc->y) &&
 147         (win->m_width == alloc->width) &&
 148         (win->m_height == alloc->height))
 149     {
 150         return;
 151     }
 152
 153     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 154
 155     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 156        here in order to make repositioning after resizing to take effect. */
 157     if ((gtk_major_version == 1) &&
 158         (gtk_minor_version == 2) &&
 159         (gtk_micro_version < 6) &&
 160         (win->m_wxwindow) &&
 161         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 162     {
 163         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 164     }
 165 }
 166
 167 //-----------------------------------------------------------------------------
 168 // "realize" from m_widget
 169 //-----------------------------------------------------------------------------
 170
 171 static gint
 172 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 173 {
 174     if (g_isIdle)
 175         wxapp_install_idle_handler();
 176
 177     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 178        here in order to make repositioning before showing to take effect. */
 179     gtk_widget_queue_resize( win->m_widget );
 180
 181     return FALSE;
 182 }
 183
 184 //-----------------------------------------------------------------------------
 185 // "key_press_event"
 186 //-----------------------------------------------------------------------------
 187
 188 static gint gtk_notebook_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxNotebook *notebook )
 189 {
 190     if (g_isIdle)
 191         wxapp_install_idle_handler();
 192
 193     if (!notebook->m_hasVMT) return FALSE;
 194     if (g_blockEventsOnDrag) return FALSE;
 195
 196     /* win is a control: tab can be propagated up */
 197     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 198     {
 199         int page;
 200         int nMax = notebook->GetPageCount();
 201         if ( nMax-- ) // decrement it to get the last valid index
 202         {
 203             int nSel = notebook->GetSelection();
 204
 205             // change selection wrapping if it becomes invalid
 206             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 207                                        : nSel + 1
 208                         : nSel == 0 ? nMax
 209                                     : nSel - 1;
 210         }
 211         else // notebook is empty, no next page
 212         {
 213             return FALSE;
 214         }
 215
 216         // m_selection = page;
 217         gtk_notebook_set_page( GTK_NOTEBOOK(widget), page );
 218
 219         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 220         return TRUE;
 221     }
 222
 223     /* win is a control: tab can be propagated up */
 224     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 225     {
 226         int sel = notebook->GetSelection();
 227         if (sel == -1)
 228             return TRUE;
 229         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 230         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 231
 232         wxNavigationKeyEvent event;
 233         event.SetEventObject( notebook );
 234         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 235         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 236         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 237         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 238                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 239         event.SetCurrentFocus( notebook );
 240
 241         wxNotebookPage *client = notebook->GetPage(sel);
 242         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 243         {
 244              client->SetFocus();
 245         }
 246
 247         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 248         return TRUE;
 249     }
 250
 251     return FALSE;
 252 }
 253
 254 //-----------------------------------------------------------------------------
 255 // InsertChild callback for wxNotebook
 256 //-----------------------------------------------------------------------------
 257
 258 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 259 {
 260     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 261     // widget, and takes care of some details such as updating the state and
 262     // style of the child to reflect its new location.  We do this early
 263     // because without it GetBestSize (which is used to set the initial size
 264     // of controls if an explicit size is not given) will often report
 265     // incorrect sizes since the widget's style context is not fully known.
 266     // See bug #901694 for details
 267     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 268     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 269
 270     // NOTE: This should be considered a temporary workaround until we can
 271     // work out the details and implement delaying the setting of the initial
 272     // size of widgets until the size is really needed.
 273 }
 274
 275 //-----------------------------------------------------------------------------
 276 // wxNotebook
 277 //-----------------------------------------------------------------------------
 278
 279 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 280
 281 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 282     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 283 END_EVENT_TABLE()
 284
 285 void wxNotebook::Init()
 286 {
 287     m_padding = 0;
 288     m_inSwitchPage = FALSE;
 289
 290     m_imageList = (wxImageList *) NULL;
 291     m_selection = -1;
 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 (!PreCreation( parent, pos, size ) ||
 322         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 323     {
 324         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 325         return FALSE;
 326     }
 327
 328
 329     m_widget = gtk_notebook_new();
 330
 331     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 332
 333     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 334       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 335
 336     m_parent->DoAddChild( this );
 337
 338     if (m_windowStyle & wxNB_RIGHT)
 339         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 340     if (m_windowStyle & wxNB_LEFT)
 341         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 342     if (m_windowStyle & wxNB_BOTTOM)
 343         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 344
 345     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 346       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 347
 348     PostCreation(size);
 349
 350     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 351                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 352
 353     return TRUE;
 354 }
 355
 356 int wxNotebook::GetSelection() const
 357 {
 358     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 359
 360     if ( m_selection == -1 )
 361     {
 362         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 363
 364         if (g_list_length(nb_pages) != 0)
 365         {
 366             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 367
 368             gpointer cur = notebook->cur_page;
 369             if ( cur != NULL )
 370             {
 371                 wxConstCast(this, wxNotebook)->m_selection =
 372                     g_list_index( nb_pages, cur );
 373             }
 374         }
 375     }
 376
 377     return m_selection;
 378 }
 379
 380 wxString wxNotebook::GetPageText( size_t page ) const
 381 {
 382     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid notebook") );
 383
 384     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 385     if (nb_page)
 386         return nb_page->m_text;
 387     else
 388         return wxT("");
 389 }
 390
 391 int wxNotebook::GetPageImage( size_t page ) const
 392 {
 393     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 394
 395     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 396     if (nb_page)
 397         return nb_page->m_image;
 398     else
 399         return -1;
 400 }
 401
 402 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 403 {
 404     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 405
 406     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 407
 408     return m_pagesData.Item(page)->GetData();
 409 }
 410
 411 int wxNotebook::SetSelection( size_t page )
 412 {
 413     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 414
 415     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 416
 417     int selOld = GetSelection();
 418
 419     // cache the selection
 420     m_selection = page;
 421     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 422
 423     wxNotebookPage *client = GetPage(page);
 424     if ( client )
 425         client->SetFocus();
 426
 427     return selOld;
 428 }
 429
 430 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 431 {
 432     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 433
 434     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 435
 436     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 437
 438     nb_page->m_text = text;
 439
 440     gtk_label_set( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 441
 442     return TRUE;
 443 }
 444
 445 bool wxNotebook::SetPageImage( size_t page, int image )
 446 {
 447     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 448
 449     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 450
 451     if (!nb_page) return FALSE;
 452
 453     /* Optimization posibility: return immediately if image unchanged.
 454      * Not enabled because it may break existing (stupid) code that
 455      * manipulates the imagelist to cycle images */
 456
 457     /* if (image == nb_page->m_image) return TRUE; */
 458
 459     /* For different cases:
 460        1) no image -> no image
 461        2) image -> no image
 462        3) no image -> image
 463        4) image -> image */
 464
 465     if (image == -1 && nb_page->m_image == -1)
 466         return TRUE; /* Case 1): Nothing to do. */
 467
 468     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 469
 470     if (nb_page->m_image != -1)
 471     {
 472         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 473
 474         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 475         while (child)
 476         {
 477             if (GTK_IS_PIXMAP(child->data))
 478             {
 479                 pixmapwid = GTK_WIDGET(child->data);
 480                 break;
 481             }
 482             child = child->next;
 483         }
 484
 485         /* We should have the pixmap widget now */
 486         wxASSERT(pixmapwid != NULL);
 487
 488         if (image == -1)
 489         {
 490             /* If there's no new widget, just remove the old from the box */
 491             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 492             nb_page->m_image = -1;
 493
 494             return TRUE; /* Case 2) */
 495         }
 496     }
 497
 498     /* Only cases 3) and 4) left */
 499     wxASSERT( m_imageList != NULL ); /* Just in case */
 500
 501     /* Construct the new pixmap */
 502     const wxBitmap *bmp = m_imageList->GetBitmap(image);
 503     GdkPixmap *pixmap = bmp->GetPixmap();
 504     GdkBitmap *mask = (GdkBitmap*) NULL;
 505     if ( bmp->GetMask() )
 506     {
 507         mask = bmp->GetMask()->GetBitmap();
 508     }
 509
 510     if (pixmapwid == NULL)
 511     {
 512         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 513         pixmapwid = gtk_pixmap_new (pixmap, mask );
 514
 515         /* CHECKME: Are these pack flags okay? */
 516         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 517         gtk_widget_show(pixmapwid);
 518     }
 519     else
 520     {
 521         /* Case 4) Simply replace the pixmap */
 522         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 523     }
 524
 525     nb_page->m_image = image;
 526
 527     return TRUE;
 528 }
 529
 530 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 531 {
 532     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 533 }
 534
 535 void wxNotebook::SetPadding( const wxSize &padding )
 536 {
 537     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 538
 539     m_padding = padding.GetWidth();
 540
 541     int i;
 542     for (i=0; i<int(GetPageCount()); i++)
 543     {
 544         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 545         wxASSERT(nb_page != NULL);
 546
 547         if (nb_page->m_image != -1)
 548         {
 549             // gtk_box_set_child_packing sets padding on BOTH sides
 550             // icon provides left padding, label provides center and right
 551             int image = nb_page->m_image;
 552             SetPageImage(i,-1);
 553             SetPageImage(i,image);
 554         }
 555         wxASSERT(nb_page->m_label);
 556         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 557                                   GTK_WIDGET(nb_page->m_label),
 558                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 559     }
 560 }
 561
 562 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 563 {
 564     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 565 }
 566
 567 bool wxNotebook::DeleteAllPages()
 568 {
 569     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 570
 571     while (m_pagesData.GetCount() > 0)
 572         DeletePage( m_pagesData.GetCount()-1 );
 573
 574     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 575
 576     InvalidateBestSize();
 577     return wxNotebookBase::DeleteAllPages();
 578 }
 579
 580 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 581 {
 582     if ( m_selection != -1 && (size_t)m_selection >= page )
 583     {
 584         // the index will become invalid after the page is deleted
 585         m_selection = -1;
 586     }
 587
 588     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 589     if ( !client )
 590         return NULL;
 591
 592     gtk_widget_ref( client->m_widget );
 593     gtk_widget_unrealize( client->m_widget );
 594     gtk_widget_unparent( client->m_widget );
 595
 596     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 597     // new page index (when deleting selected page 0, new page is 1 although,
 598     // clearly, the selection should stay 0), so suppress this
 599     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 600       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 601
 602     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 603
 604     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 605       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 606
 607     wxGtkNotebookPage* p = GetNotebookPage(page);
 608     m_pagesData.DeleteObject(p);
 609     delete p;
 610
 611     return client;
 612 }
 613
 614 bool wxNotebook::InsertPage( size_t position,
 615                              wxNotebookPage* win,
 616                              const wxString& text,
 617                              bool select,
 618                              int imageId )
 619 {
 620     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 621
 622     wxCHECK_MSG( win->GetParent() == this, FALSE,
 623                wxT("Can't add a page whose parent is not the notebook!") );
 624
 625     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 626                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 627
 628     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 629     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 630     // work as it seems to undo too much and will cause errors in the
 631     // gtk_notebook_insert_page below, so instead just clear the parent by
 632     // hand here.
 633     win->m_widget->parent = NULL;
 634
 635     // don't receive switch page during addition
 636     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 637       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 638
 639     if (m_themeEnabled)
 640         win->SetThemeEnabled(TRUE);
 641
 642     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 643
 644     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 645
 646     if ( position == GetPageCount() )
 647         m_pagesData.Append( nb_page );
 648     else
 649         m_pagesData.Insert( m_pagesData.Item( position ), nb_page );
 650
 651     m_pages.Insert(win, position);
 652
 653     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 654     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 655
 656     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 657       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 658
 659 #ifndef __VMS
 660    // On VMS position is unsigned and thus always positive
 661    if (position < 0)
 662         gtk_notebook_append_page( notebook, win->m_widget, nb_page->m_box );
 663     else
 664 #endif
 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->GetBitmap(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 #ifndef __VMS
 712    // On VMS position is unsigned and thus always positive
 713         if (position < 0)
 714             SetSelection( GetPageCount()-1 );
 715         else
 716 #endif
 717             SetSelection( position );
 718     }
 719
 720     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 721       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 722
 723     InvalidateBestSize();
 724     return TRUE;
 725 }
 726
 727 // helper for HitTest(): check if the point lies inside the given widget which
 728 // is the child of the notebook whose position and border size are passed as
 729 // parameters
 730 static bool
 731 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 732                     gint x, gint y, gint border = 0)
 733 {
 734     return
 735         (pt.x >= w->allocation.x - x - border) &&
 736         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 737         (pt.y >= w->allocation.y - y - border) &&
 738         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 739 }
 740
 741 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 742 {
 743     const gint x = m_widget->allocation.x;
 744     const gint y = m_widget->allocation.y;
 745
 746     const size_t count = GetPageCount();
 747     for ( size_t i = 0; i < count; i++ )
 748     {
 749         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 750         GtkWidget *box = nb_page->m_box;
 751
 752         // VZ: don't know how to find the border width in GTK+ 1.2
 753 #ifdef __WXGTK20__
 754         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 755 #else // !GTK+ 2.x
 756         const gint border = 0;
 757 #endif
 758         if ( IsPointInsideWidget(pt, box, x, y, border) )
 759         {
 760             // ok, we're inside this tab -- now find out where, if needed
 761             if ( flags )
 762             {
 763                 GtkWidget *pixmap = NULL;
 764
 765                 GList *children = gtk_container_children(GTK_CONTAINER(box));
 766                 for ( GList *child = children; child; child = child->next )
 767                 {
 768                     if ( GTK_IS_PIXMAP(child->data) )
 769                     {
 770                         pixmap = GTK_WIDGET(child->data);
 771                         break;
 772                     }
 773                 }
 774
 775                 if ( children )
 776                     g_list_free(children);
 777
 778                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 779                 {
 780                     *flags = wxNB_HITTEST_ONICON;
 781                 }
 782                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 783                 {
 784                     *flags = wxNB_HITTEST_ONLABEL;
 785                 }
 786                 else
 787                 {
 788                     *flags = wxNB_HITTEST_ONITEM;
 789                 }
 790             }
 791
 792             return i;
 793         }
 794     }
 795
 796     if ( flags )
 797         *flags = wxNB_HITTEST_NOWHERE;
 798
 799     return wxNOT_FOUND;
 800 }
 801
 802 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 803 {
 804     if (event.IsWindowChange())
 805         AdvanceSelection( event.GetDirection() );
 806     else
 807         event.Skip();
 808 }
 809
 810 #if wxUSE_CONSTRAINTS
 811
 812 // override these 2 functions to do nothing: everything is done in OnSize
 813 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 814 {
 815     // don't set the sizes of the pages - their correct size is not yet known
 816     wxControl::SetConstraintSizes(FALSE);
 817 }
 818
 819 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 820 {
 821     return TRUE;
 822 }
 823
 824 #endif
 825
 826 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 827 {
 828     gtk_widget_modify_style(m_widget, style);
 829     size_t cnt = m_pagesData.GetCount();
 830     for (size_t i = 0; i < cnt; i++)
 831         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 832 }
 833
 834 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 835 {
 836     return ((m_widget->window == window) ||
 837             (NOTEBOOK_PANEL(m_widget) == window));
 838 }
 839
 840 // static
 841 wxVisualAttributes
 842 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 843 {
 844     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 845 }
 846
 847 //-----------------------------------------------------------------------------
 848 // wxNotebookEvent
 849 //-----------------------------------------------------------------------------
 850
 851 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 852
 853 #endif