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 = (GtkNotebookPage *) NULL;
  65         m_box = (GtkWidget *) 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                  _T("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 programatically 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->m_selection = 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->m_selection = 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 == -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->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 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxBookCtrlBase)
 284
 285 BEGIN_EVENT_TABLE(wxNotebook, wxBookCtrlBase)
 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 ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 326         style |= wxBK_TOP;
 327
 328     if (!PreCreation( parent, pos, size ) ||
 329         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 330     {
 331         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 332         return false;
 333     }
 334
 335
 336     m_widget = gtk_notebook_new();
 337
 338     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 339
 340     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 341       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 342
 343     m_parent->DoAddChild( this );
 344
 345     if (m_windowStyle & wxBK_RIGHT)
 346         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 347     if (m_windowStyle & wxBK_LEFT)
 348         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 349     if (m_windowStyle & wxBK_BOTTOM)
 350         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 351
 352     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 353       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 354
 355     PostCreation(size);
 356
 357     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 358                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 359
 360     return true;
 361 }
 362
 363 int wxNotebook::GetSelection() const
 364 {
 365     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 366
 367     if ( m_selection == -1 )
 368     {
 369         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 370
 371         if (g_list_length(nb_pages) != 0)
 372         {
 373             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 374
 375             gpointer cur = notebook->cur_page;
 376             if ( cur != NULL )
 377             {
 378                 wxConstCast(this, wxNotebook)->m_selection =
 379                     g_list_index( nb_pages, cur );
 380             }
 381         }
 382     }
 383
 384     return m_selection;
 385 }
 386
 387 wxString wxNotebook::GetPageText( size_t page ) const
 388 {
 389     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 390
 391     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 392     if (nb_page)
 393         return nb_page->m_text;
 394     else
 395         return wxEmptyString;
 396 }
 397
 398 int wxNotebook::GetPageImage( size_t page ) const
 399 {
 400     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 401
 402     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 403     if (nb_page)
 404         return nb_page->m_image;
 405     else
 406         return -1;
 407 }
 408
 409 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 410 {
 411     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 412
 413     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 414
 415     return m_pagesData.Item(page)->GetData();
 416 }
 417
 418 int wxNotebook::DoSetSelection( size_t page, int flags )
 419 {
 420     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 421
 422     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 423
 424     int selOld = GetSelection();
 425
 426     if ( !(flags & SetSelection_SendEvent) )
 427         m_skipNextPageChangeEvent = true;
 428
 429     // cache the selection
 430     m_selection = page;
 431     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 432
 433 #ifdef __WXDEBUG__
 434     if ( !(flags & SetSelection_SendEvent) )
 435     {
 436             // gtk_notebook_set_current_page will emit the switch-page signal which will be
 437             // caught by our gtk_notebook_page_change_callback which should have reset the
 438             // flag to false:
 439         wxASSERT(!m_skipNextPageChangeEvent);
 440     }
 441 #endif // __WXDEBUG__
 442
 443     wxNotebookPage *client = GetPage(page);
 444     if ( client )
 445         client->SetFocus();
 446
 447     return selOld;
 448 }
 449
 450 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 451 {
 452     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 453
 454     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 455
 456     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 457
 458     nb_page->m_text = text;
 459
 460     gtk_label_set( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 461
 462     return true;
 463 }
 464
 465 bool wxNotebook::SetPageImage( size_t page, int image )
 466 {
 467     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 468
 469     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 470
 471     if (!nb_page) return FALSE;
 472
 473     /* Optimization posibility: return immediately if image unchanged.
 474      * Not enabled because it may break existing (stupid) code that
 475      * manipulates the imagelist to cycle images */
 476
 477     /* if (image == nb_page->m_image) return true; */
 478
 479     /* For different cases:
 480        1) no image -> no image
 481        2) image -> no image
 482        3) no image -> image
 483        4) image -> image */
 484
 485     if (image == -1 && nb_page->m_image == -1)
 486         return true; /* Case 1): Nothing to do. */
 487
 488     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 489
 490     if (nb_page->m_image != -1)
 491     {
 492         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 493
 494         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 495         while (child)
 496         {
 497             if (GTK_IS_PIXMAP(child->data))
 498             {
 499                 pixmapwid = GTK_WIDGET(child->data);
 500                 break;
 501             }
 502             child = child->next;
 503         }
 504
 505         /* We should have the pixmap widget now */
 506         wxASSERT(pixmapwid != NULL);
 507
 508         if (image == -1)
 509         {
 510             /* If there's no new widget, just remove the old from the box */
 511             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 512             nb_page->m_image = -1;
 513
 514             return true; /* Case 2) */
 515         }
 516     }
 517
 518     /* Only cases 3) and 4) left */
 519     wxASSERT( m_imageList != NULL ); /* Just in case */
 520
 521     /* Construct the new pixmap */
 522     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 523     GdkPixmap *pixmap = bmp->GetPixmap();
 524     GdkBitmap *mask = (GdkBitmap*) NULL;
 525     if ( bmp->GetMask() )
 526     {
 527         mask = bmp->GetMask()->GetBitmap();
 528     }
 529
 530     if (pixmapwid == NULL)
 531     {
 532         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 533         pixmapwid = gtk_pixmap_new (pixmap, mask );
 534
 535         /* CHECKME: Are these pack flags okay? */
 536         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 537         gtk_widget_show(pixmapwid);
 538     }
 539     else
 540     {
 541         /* Case 4) Simply replace the pixmap */
 542         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 543     }
 544
 545     nb_page->m_image = image;
 546
 547     return true;
 548 }
 549
 550 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 551 {
 552     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 553 }
 554
 555 void wxNotebook::SetPadding( const wxSize &padding )
 556 {
 557     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 558
 559     m_padding = padding.GetWidth();
 560
 561     int i;
 562     for (i=0; i<int(GetPageCount()); i++)
 563     {
 564         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 565         wxASSERT(nb_page != NULL);
 566
 567         if (nb_page->m_image != -1)
 568         {
 569             // gtk_box_set_child_packing sets padding on BOTH sides
 570             // icon provides left padding, label provides center and right
 571             int image = nb_page->m_image;
 572             SetPageImage(i,-1);
 573             SetPageImage(i,image);
 574         }
 575         wxASSERT(nb_page->m_label);
 576         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 577                                   GTK_WIDGET(nb_page->m_label),
 578                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 579     }
 580 }
 581
 582 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 583 {
 584     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 585 }
 586
 587 bool wxNotebook::DeleteAllPages()
 588 {
 589     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 590
 591     while (m_pagesData.GetCount() > 0)
 592         DeletePage( m_pagesData.GetCount()-1 );
 593
 594     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 595
 596     InvalidateBestSize();
 597     return wxNotebookBase::DeleteAllPages();
 598 }
 599
 600 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 601 {
 602     if ( m_selection != -1 && (size_t)m_selection >= page )
 603     {
 604         // the index will become invalid after the page is deleted
 605         m_selection = -1;
 606     }
 607
 608     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 609     if ( !client )
 610         return NULL;
 611
 612     gtk_widget_ref( client->m_widget );
 613     gtk_widget_unrealize( client->m_widget );
 614     gtk_widget_unparent( client->m_widget );
 615
 616     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 617     // new page index (when deleting selected page 0, new page is 1 although,
 618     // clearly, the selection should stay 0), so suppress this
 619     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 620       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 621
 622     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 623
 624     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 625       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 626
 627     wxGtkNotebookPage* p = GetNotebookPage(page);
 628     m_pagesData.DeleteObject(p);
 629     delete p;
 630
 631     return client;
 632 }
 633
 634 bool wxNotebook::InsertPage( size_t position,
 635                              wxNotebookPage* win,
 636                              const wxString& text,
 637                              bool select,
 638                              int imageId )
 639 {
 640     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 641
 642     wxCHECK_MSG( win->GetParent() == this, FALSE,
 643                wxT("Can't add a page whose parent is not the notebook!") );
 644
 645     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 646                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 647
 648     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 649     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 650     // work as it seems to undo too much and will cause errors in the
 651     // gtk_notebook_insert_page below, so instead just clear the parent by
 652     // hand here.
 653     win->m_widget->parent = NULL;
 654
 655     // don't receive switch page during addition
 656     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 657       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 658
 659     if (m_themeEnabled)
 660         win->SetThemeEnabled(true);
 661
 662     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 663
 664     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 665
 666     if ( position == GetPageCount() )
 667         m_pagesData.Append( nb_page );
 668     else
 669         m_pagesData.Insert( position, nb_page );
 670
 671     m_pages.Insert(win, position);
 672
 673     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 674     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 675
 676     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 677       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 678
 679     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 680
 681     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 682
 683     /* set the label image */
 684     nb_page->m_image = imageId;
 685
 686     if (imageId != -1)
 687     {
 688         wxASSERT( m_imageList != NULL );
 689
 690         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 691         GdkPixmap *pixmap = bmp->GetPixmap();
 692         GdkBitmap *mask = (GdkBitmap*) NULL;
 693         if ( bmp->GetMask() )
 694         {
 695             mask = bmp->GetMask()->GetBitmap();
 696         }
 697
 698         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 699
 700         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 701
 702         gtk_widget_show(pixmapwid);
 703     }
 704
 705     /* set the label text */
 706
 707     nb_page->m_text = text;
 708     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 709
 710     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 711     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 712
 713     /* apply current style */
 714     GtkRcStyle *style = CreateWidgetStyle();
 715     if ( style )
 716     {
 717         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 718         gtk_rc_style_unref(style);
 719     }
 720
 721     /* show the label */
 722     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 723     if (select && (m_pagesData.GetCount() > 1))
 724     {
 725       SetSelection( position );
 726     }
 727
 728     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 729       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 730
 731     InvalidateBestSize();
 732     return true;
 733 }
 734
 735 // helper for HitTest(): check if the point lies inside the given widget which
 736 // is the child of the notebook whose position and border size are passed as
 737 // parameters
 738 static bool
 739 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 740                     gint x, gint y, gint border = 0)
 741 {
 742     return
 743         (pt.x >= w->allocation.x - x - border) &&
 744         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 745         (pt.y >= w->allocation.y - y - border) &&
 746         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 747 }
 748
 749 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 750 {
 751     const gint x = m_widget->allocation.x;
 752     const gint y = m_widget->allocation.y;
 753
 754     const size_t count = GetPageCount();
 755     size_t i = 0;
 756
 757     // MR: Code to fix HitTest index return when tabs are scrolled.
 758     // No idea if it would work for GTK1
 759 #if 0
 760     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 761     if (gtk_notebook_get_scrollable(notebook));
 762         i = g_list_position( notebook->children, notebook->first_tab );
 763 #endif
 764
 765     for ( ; i < count; i++ )
 766     {
 767         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 768         GtkWidget *box = nb_page->m_box;
 769
 770         // VZ: don't know how to find the border width in GTK+ 1.2
 771         const gint border = 0;
 772         if ( IsPointInsideWidget(pt, box, x, y, border) )
 773         {
 774             // ok, we're inside this tab -- now find out where, if needed
 775             if ( flags )
 776             {
 777                 GtkWidget *pixmap = NULL;
 778
 779                 GList *children = gtk_container_children(GTK_CONTAINER(box));
 780                 for ( GList *child = children; child; child = child->next )
 781                 {
 782                     if ( GTK_IS_PIXMAP(child->data) )
 783                     {
 784                         pixmap = GTK_WIDGET(child->data);
 785                         break;
 786                     }
 787                 }
 788
 789                 if ( children )
 790                     g_list_free(children);
 791
 792                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 793                 {
 794                     *flags = wxBK_HITTEST_ONICON;
 795                 }
 796                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 797                 {
 798                     *flags = wxBK_HITTEST_ONLABEL;
 799                 }
 800                 else
 801                 {
 802                     *flags = wxBK_HITTEST_ONITEM;
 803                 }
 804             }
 805
 806             return i;
 807         }
 808     }
 809
 810     if ( flags )
 811         *flags = wxBK_HITTEST_NOWHERE;
 812
 813     return wxNOT_FOUND;
 814 }
 815
 816 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 817 {
 818     if (event.IsWindowChange())
 819         AdvanceSelection( event.GetDirection() );
 820     else
 821         event.Skip();
 822 }
 823
 824 #if wxUSE_CONSTRAINTS
 825
 826 // override these 2 functions to do nothing: everything is done in OnSize
 827 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 828 {
 829     // don't set the sizes of the pages - their correct size is not yet known
 830     wxControl::SetConstraintSizes(FALSE);
 831 }
 832
 833 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 834 {
 835     return true;
 836 }
 837
 838 #endif
 839
 840 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 841 {
 842     gtk_widget_modify_style(m_widget, style);
 843     size_t cnt = m_pagesData.GetCount();
 844     for (size_t i = 0; i < cnt; i++)
 845         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 846 }
 847
 848 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 849 {
 850     return ((m_widget->window == window) ||
 851             (NOTEBOOK_PANEL(m_widget) == window));
 852 }
 853
 854 // static
 855 wxVisualAttributes
 856 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 857 {
 858     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 859 }
 860
 861 #endif