src/gtk1/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/notebook.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx.h".
  10 #include "wx/wxprec.h"
  11
  12 #if wxUSE_NOTEBOOK
  13
  14 #include "wx/notebook.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/intl.h"
  18     #include "wx/log.h"
  19     #include "wx/utils.h"
  20     #include "wx/panel.h"
  21     #include "wx/msgdlg.h"
  22     #include "wx/bitmap.h"
  23 #endif
  24
  25 #include "wx/imaglist.h"
  26 #include "wx/fontutil.h"
  27
  28 #include "wx/gtk1/private.h"
  29 #include "wx/gtk1/win_gtk.h"
  30
  31 #include <gdk/gdkkeysyms.h>
  32
  33 //-----------------------------------------------------------------------------
  34 // idle system
  35 //-----------------------------------------------------------------------------
  36
  37 extern void wxapp_install_idle_handler();
  38 extern bool g_isIdle;
  39
  40 //-----------------------------------------------------------------------------
  41 // data
  42 //-----------------------------------------------------------------------------
  43
  44 extern bool g_blockEventsOnDrag;
  45
  46 //-----------------------------------------------------------------------------
  47 // wxGtkNotebookPage
  48 //-----------------------------------------------------------------------------
  49
  50 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  51 //     allows us to have quite a few functions implemented in the base class)
  52 //     but the page data is kept in a separate list, so we must maintain them
  53 //     in sync manually... of course, the list had been there before the base
  54 //     class which explains it but it still would be nice to do something
  55 //     about this one day
  56
  57 class wxGtkNotebookPage: public wxObject
  58 {
  59 public:
  60     wxGtkNotebookPage()
  61     {
  62         m_image = -1;
  63         m_page = NULL;
  64         m_box = NULL;
  65     }
  66
  67     wxString           m_text;
  68     int                m_image;
  69     GtkNotebookPage   *m_page;
  70     GtkLabel          *m_label;
  71     GtkWidget         *m_box;     // in which the label and image are packed
  72 };
  73
  74
  75 #include "wx/listimpl.cpp"
  76 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  77
  78
  79 //-----------------------------------------------------------------------------
  80 // "switch_page"
  81 //-----------------------------------------------------------------------------
  82
  83 extern "C" {
  84 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  85                                               GtkNotebookPage *WXUNUSED(page),
  86                                               gint page,
  87                                               wxNotebook *notebook )
  88 {
  89     // are you trying to call SetSelection() from a notebook event handler?
  90     // you shouldn't!
  91     wxCHECK_RET( !notebook->m_inSwitchPage,
  92                  wxT("gtk_notebook_page_change_callback reentered") );
  93
  94     notebook->m_inSwitchPage = true;
  95     if (g_isIdle)
  96         wxapp_install_idle_handler();
  97
  98     int old = notebook->GetSelection();
  99
 100     if (notebook->m_skipNextPageChangeEvent)
 101     {
 102         // this event was programmatically generated by ChangeSelection() and thus must
 103         // be skipped
 104         notebook->m_skipNextPageChangeEvent = false;
 105
 106         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 107         // with wxBookCtrlEvent::GetSelection()) value even though the page is
 108         // not really changed in GTK+
 109         notebook->SetSelection(page);
 110     }
 111     else
 112     {
 113         if ( !notebook->SendPageChangingEvent(page) )
 114         {
 115             // program doesn't allow the page change
 116             gtk_signal_emit_stop_by_name(GTK_OBJECT(notebook->m_widget), "switch_page");
 117         }
 118         else // change allowed
 119         {
 120             // make wxNotebook::GetSelection() return the correct (i.e. consistent
 121             // with wxBookCtrlEvent::GetSelection()) value even though the page is
 122             // not really changed in GTK+
 123             notebook->SetSelection(page);
 124
 125             notebook->SendPageChangedEvent(old);
 126         }
 127     }
 128
 129     notebook->m_inSwitchPage = FALSE;
 130 }
 131 }
 132
 133 //-----------------------------------------------------------------------------
 134 // "size_allocate"
 135 //-----------------------------------------------------------------------------
 136
 137 extern "C" {
 138 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 139 {
 140     if (g_isIdle)
 141         wxapp_install_idle_handler();
 142
 143     if ((win->m_x == alloc->x) &&
 144         (win->m_y == alloc->y) &&
 145         (win->m_width == alloc->width) &&
 146         (win->m_height == alloc->height))
 147     {
 148         return;
 149     }
 150
 151     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 152
 153     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 154        here in order to make repositioning after resizing to take effect. */
 155     if ((gtk_major_version == 1) &&
 156         (gtk_minor_version == 2) &&
 157         (gtk_micro_version < 6) &&
 158         (win->m_wxwindow) &&
 159         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 160     {
 161         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 162     }
 163 }
 164 }
 165
 166 //-----------------------------------------------------------------------------
 167 // "realize" from m_widget
 168 //-----------------------------------------------------------------------------
 169
 170 extern "C" {
 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 //-----------------------------------------------------------------------------
 186 // "key_press_event"
 187 //-----------------------------------------------------------------------------
 188
 189 extern "C" {
 190 static gint gtk_notebook_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxNotebook *notebook )
 191 {
 192     if (g_isIdle)
 193         wxapp_install_idle_handler();
 194
 195     if (!notebook->m_hasVMT) return FALSE;
 196     if (g_blockEventsOnDrag) return FALSE;
 197
 198     /* win is a control: tab can be propagated up */
 199     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 200     {
 201         int page;
 202         int nMax = notebook->GetPageCount();
 203         if ( nMax-- ) // decrement it to get the last valid index
 204         {
 205             int nSel = notebook->GetSelection();
 206
 207             // change selection wrapping if it becomes invalid
 208             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 209                                        : nSel + 1
 210                         : nSel == 0 ? nMax
 211                                     : nSel - 1;
 212         }
 213         else // notebook is empty, no next page
 214         {
 215             return FALSE;
 216         }
 217
 218         // m_selection = page;
 219         gtk_notebook_set_page( GTK_NOTEBOOK(widget), page );
 220
 221         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 222         return TRUE;
 223     }
 224
 225     /* win is a control: tab can be propagated up */
 226     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 227     {
 228         int sel = notebook->GetSelection();
 229         if (sel == wxNOT_FOUND)
 230             return TRUE;
 231         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 232         wxCHECK_MSG( nb_page, FALSE, wxT("invalid selection in wxNotebook") );
 233
 234         wxNavigationKeyEvent event;
 235         event.SetEventObject( notebook );
 236         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 237         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 238         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 239         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 240                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 241         event.SetCurrentFocus( notebook );
 242
 243         wxNotebookPage *client = notebook->GetPage(sel);
 244         if ( !client->HandleWindowEvent( event ) )
 245         {
 246              client->SetFocus();
 247         }
 248
 249         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 250         return TRUE;
 251     }
 252
 253     return FALSE;
 254 }
 255 }
 256
 257 //-----------------------------------------------------------------------------
 258 // InsertChild callback for wxNotebook
 259 //-----------------------------------------------------------------------------
 260
 261 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 262 {
 263     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 264     // widget, and takes care of some details such as updating the state and
 265     // style of the child to reflect its new location.  We do this early
 266     // because without it GetBestSize (which is used to set the initial size
 267     // of controls if an explicit size is not given) will often report
 268     // incorrect sizes since the widget's style context is not fully known.
 269     // See bug #901694 for details
 270     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 271     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 272
 273     // NOTE: This should be considered a temporary workaround until we can
 274     // work out the details and implement delaying the setting of the initial
 275     // size of widgets until the size is really needed.
 276 }
 277
 278 //-----------------------------------------------------------------------------
 279 // wxNotebook
 280 //-----------------------------------------------------------------------------
 281
 282 BEGIN_EVENT_TABLE(wxNotebook, wxBookCtrlBase)
 283     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 284 END_EVENT_TABLE()
 285
 286 void wxNotebook::Init()
 287 {
 288     m_padding = 0;
 289     m_inSwitchPage = false;
 290
 291     m_themeEnabled = true;
 292 }
 293
 294 wxNotebook::wxNotebook()
 295 {
 296     Init();
 297 }
 298
 299 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 300       const wxPoint& pos, const wxSize& size,
 301       long style, const wxString& name )
 302 {
 303     Init();
 304     Create( parent, id, pos, size, style, name );
 305 }
 306
 307 wxNotebook::~wxNotebook()
 308 {
 309     DeleteAllPages();
 310 }
 311
 312 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 313                         const wxPoint& pos, const wxSize& size,
 314                         long style, const wxString& name )
 315 {
 316     m_needParent = true;
 317     m_acceptsFocus = true;
 318     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 319
 320     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 321         style |= wxBK_TOP;
 322
 323     if (!PreCreation( parent, pos, size ) ||
 324         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 325     {
 326         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 327         return false;
 328     }
 329
 330
 331     m_widget = gtk_notebook_new();
 332
 333     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 334
 335     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 336       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 337
 338     m_parent->DoAddChild( this );
 339
 340     if (m_windowStyle & wxBK_RIGHT)
 341         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 342     if (m_windowStyle & wxBK_LEFT)
 343         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 344     if (m_windowStyle & wxBK_BOTTOM)
 345         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 346
 347     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 348       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 349
 350     PostCreation(size);
 351
 352     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 353                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 354
 355     return true;
 356 }
 357
 358 int wxNotebook::GetSelection() const
 359 {
 360     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid notebook") );
 361
 362     if ( m_selection == wxNOT_FOUND )
 363     {
 364         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 365
 366         if (g_list_length(nb_pages) != 0)
 367         {
 368             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 369
 370             gpointer cur = notebook->cur_page;
 371             if ( cur != NULL )
 372             {
 373                 const_cast<wxNotebook *>(this)->
 374                     SetSelection(g_list_index( nb_pages, cur ));
 375             }
 376         }
 377     }
 378
 379     return m_selection;
 380 }
 381
 382 wxString wxNotebook::GetPageText( size_t page ) const
 383 {
 384     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 385
 386     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 387     if (nb_page)
 388         return nb_page->m_text;
 389     else
 390         return wxEmptyString;
 391 }
 392
 393 int wxNotebook::GetPageImage( size_t page ) const
 394 {
 395     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 396
 397     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 398     if (nb_page)
 399         return nb_page->m_image;
 400     else
 401         return -1;
 402 }
 403
 404 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 405 {
 406     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid notebook") );
 407
 408     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), NULL, wxT("invalid notebook index") );
 409
 410     return m_pagesData.Item(page)->GetData();
 411 }
 412
 413 int wxNotebook::DoSetSelection( size_t page, int flags )
 414 {
 415     wxCHECK_MSG( m_widget != NULL, wxNOT_FOUND, wxT("invalid notebook") );
 416
 417     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 418
 419     int selOld = GetSelection();
 420
 421     if ( !(flags & SetSelection_SendEvent) )
 422         m_skipNextPageChangeEvent = true;
 423
 424     // cache the selection
 425     m_selection = page;
 426     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 427
 428     // gtk_notebook_set_current_page is supposed to emit the switch-page signal
 429     // which should be caught by our gtk_notebook_page_change_callback which
 430     // should have reset the flag to false, check it:
 431     wxASSERT_LEVEL_2_MSG(
 432         (flags & SetSelection_SendEvent) || !m_skipNextPageChangeEvent,
 433         "internal error in selection events generation"
 434     );
 435
 436     wxNotebookPage *client = GetPage(page);
 437     if ( client )
 438         client->SetFocus();
 439
 440     return selOld;
 441 }
 442
 443 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 444 {
 445     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 446
 447     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 448
 449     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 450
 451     nb_page->m_text = text;
 452
 453     gtk_label_set( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 454
 455     return true;
 456 }
 457
 458 bool wxNotebook::SetPageImage( size_t page, int image )
 459 {
 460     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 461
 462     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 463
 464     if (!nb_page) return FALSE;
 465
 466     /* Optimization posibility: return immediately if image unchanged.
 467      * Not enabled because it may break existing (stupid) code that
 468      * manipulates the imagelist to cycle images */
 469
 470     /* if (image == nb_page->m_image) return true; */
 471
 472     /* For different cases:
 473        1) no image -> no image
 474        2) image -> no image
 475        3) no image -> image
 476        4) image -> image */
 477
 478     if (image == -1 && nb_page->m_image == -1)
 479         return true; /* Case 1): Nothing to do. */
 480
 481     GtkWidget *pixmapwid = NULL;
 482
 483     if (nb_page->m_image != -1)
 484     {
 485         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 486
 487         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 488         while (child)
 489         {
 490             if (GTK_IS_PIXMAP(child->data))
 491             {
 492                 pixmapwid = GTK_WIDGET(child->data);
 493                 break;
 494             }
 495             child = child->next;
 496         }
 497
 498         /* We should have the pixmap widget now */
 499         wxASSERT(pixmapwid != NULL);
 500
 501         if (image == -1)
 502         {
 503             /* If there's no new widget, just remove the old from the box */
 504             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 505             nb_page->m_image = -1;
 506
 507             return true; /* Case 2) */
 508         }
 509     }
 510
 511     /* Only cases 3) and 4) left */
 512     wxASSERT( HasImageList() ); /* Just in case */
 513
 514     /* Construct the new pixmap */
 515     const wxBitmap *bmp = GetImageList()->GetBitmapPtr(image);
 516     GdkPixmap *pixmap = bmp->GetPixmap();
 517     GdkBitmap *mask = NULL;
 518     if ( bmp->GetMask() )
 519     {
 520         mask = bmp->GetMask()->GetBitmap();
 521     }
 522
 523     if (pixmapwid == NULL)
 524     {
 525         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 526         pixmapwid = gtk_pixmap_new (pixmap, mask );
 527
 528         /* CHECKME: Are these pack flags okay? */
 529         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 530         gtk_widget_show(pixmapwid);
 531     }
 532     else
 533     {
 534         /* Case 4) Simply replace the pixmap */
 535         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 536     }
 537
 538     nb_page->m_image = image;
 539
 540     return true;
 541 }
 542
 543 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 544 {
 545     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 546 }
 547
 548 void wxNotebook::SetPadding( const wxSize &padding )
 549 {
 550     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 551
 552     m_padding = padding.GetWidth();
 553
 554     int i;
 555     for (i=0; i<int(GetPageCount()); i++)
 556     {
 557         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 558         wxASSERT(nb_page != NULL);
 559
 560         if (nb_page->m_image != -1)
 561         {
 562             // gtk_box_set_child_packing sets padding on BOTH sides
 563             // icon provides left padding, label provides center and right
 564             int image = nb_page->m_image;
 565             SetPageImage(i,-1);
 566             SetPageImage(i,image);
 567         }
 568         wxASSERT(nb_page->m_label);
 569         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 570                                   GTK_WIDGET(nb_page->m_label),
 571                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 572     }
 573 }
 574
 575 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 576 {
 577     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 578 }
 579
 580 bool wxNotebook::DeleteAllPages()
 581 {
 582     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 583
 584     while (m_pagesData.GetCount() > 0)
 585         DeletePage( m_pagesData.GetCount()-1 );
 586
 587     wxASSERT_MSG( GetPageCount() == 0, wxT("all pages must have been deleted") );
 588
 589     InvalidateBestSize();
 590     return wxNotebookBase::DeleteAllPages();
 591 }
 592
 593 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 594 {
 595     if ( m_selection != wxNOT_FOUND && (size_t)m_selection >= page )
 596     {
 597         // the index will become invalid after the page is deleted
 598         m_selection = wxNOT_FOUND;
 599     }
 600
 601     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 602     if ( !client )
 603         return NULL;
 604
 605     gtk_widget_ref( client->m_widget );
 606     gtk_widget_unrealize( client->m_widget );
 607     gtk_widget_unparent( client->m_widget );
 608
 609     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 610     // new page index (when deleting selected page 0, new page is 1 although,
 611     // clearly, the selection should stay 0), so suppress this
 612     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 613       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 614
 615     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 616
 617     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 618       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 619
 620     wxGtkNotebookPage* p = GetNotebookPage(page);
 621     m_pagesData.DeleteObject(p);
 622     delete p;
 623
 624     return client;
 625 }
 626
 627 bool wxNotebook::InsertPage( size_t position,
 628                              wxNotebookPage* win,
 629                              const wxString& text,
 630                              bool select,
 631                              int imageId )
 632 {
 633     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 634
 635     wxCHECK_MSG( win->GetParent() == this, FALSE,
 636                wxT("Can't add a page whose parent is not the notebook!") );
 637
 638     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 639                  wxT("invalid page index in wxNotebookPage::InsertPage()") );
 640
 641     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 642     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 643     // work as it seems to undo too much and will cause errors in the
 644     // gtk_notebook_insert_page below, so instead just clear the parent by
 645     // hand here.
 646     win->m_widget->parent = NULL;
 647
 648     // don't receive switch page during addition
 649     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 650       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) 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     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 670       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)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( HasImageList() );
 682
 683         const wxBitmap *bmp = GetImageList()->GetBitmapPtr(imageId);
 684         GdkPixmap *pixmap = bmp->GetPixmap();
 685         GdkBitmap *mask = 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.empty()) nb_page->m_text = wxEmptyString;
 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     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 722       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)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     // MR: Code to fix HitTest index return when tabs are scrolled.
 751     // No idea if it would work for GTK1
 752 #if 0
 753     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 754     if (gtk_notebook_get_scrollable(notebook));
 755         i = g_list_position( notebook->children, notebook->first_tab );
 756 #endif
 757
 758     for ( ; i < count; i++ )
 759     {
 760         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 761         GtkWidget *box = nb_page->m_box;
 762
 763         // VZ: don't know how to find the border width in GTK+ 1.2
 764         const gint border = 0;
 765         if ( IsPointInsideWidget(pt, box, x, y, border) )
 766         {
 767             // ok, we're inside this tab -- now find out where, if needed
 768             if ( flags )
 769             {
 770                 GtkWidget *pixmap = NULL;
 771
 772                 GList *children = gtk_container_children(GTK_CONTAINER(box));
 773                 for ( GList *child = children; child; child = child->next )
 774                 {
 775                     if ( GTK_IS_PIXMAP(child->data) )
 776                     {
 777                         pixmap = GTK_WIDGET(child->data);
 778                         break;
 779                     }
 780                 }
 781
 782                 if ( children )
 783                     g_list_free(children);
 784
 785                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 786                 {
 787                     *flags = wxBK_HITTEST_ONICON;
 788                 }
 789                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 790                 {
 791                     *flags = wxBK_HITTEST_ONLABEL;
 792                 }
 793                 else
 794                 {
 795                     *flags = wxBK_HITTEST_ONITEM;
 796                 }
 797             }
 798
 799             return i;
 800         }
 801     }
 802
 803     if ( flags )
 804         *flags = wxBK_HITTEST_NOWHERE;
 805
 806     return wxNOT_FOUND;
 807 }
 808
 809 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 810 {
 811     if (event.IsWindowChange())
 812         AdvanceSelection( event.GetDirection() );
 813     else
 814         event.Skip();
 815 }
 816
 817 #if wxUSE_CONSTRAINTS
 818
 819 // override these 2 functions to do nothing: everything is done in OnSize
 820 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 821 {
 822     // don't set the sizes of the pages - their correct size is not yet known
 823     wxControl::SetConstraintSizes(FALSE);
 824 }
 825
 826 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 827 {
 828     return true;
 829 }
 830
 831 #endif
 832
 833 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 834 {
 835     gtk_widget_modify_style(m_widget, style);
 836     size_t cnt = m_pagesData.GetCount();
 837     for (size_t i = 0; i < cnt; i++)
 838         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 839 }
 840
 841 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 842 {
 843     return ((m_widget->window == window) ||
 844             (NOTEBOOK_PANEL(m_widget) == window));
 845 }
 846
 847 // static
 848 wxVisualAttributes
 849 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 850 {
 851     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 852 }
 853
 854 #endif