src/gtk/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/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 // FIXME: Use GtkImage instead of GtkPixmap. Don't use gtk_container_border_width
  30 #include <gtk/gtkversion.h>
  31 #ifdef GTK_DISABLE_DEPRECATED
  32 #undef GTK_DISABLE_DEPRECATED
  33 #endif
  34
  35 #include "wx/gtk/private.h"
  36 #include "wx/gtk/win_gtk.h"
  37
  38 #include <gdk/gdkkeysyms.h>
  39
  40 // ----------------------------------------------------------------------------
  41 // events
  42 // ----------------------------------------------------------------------------
  43
  44 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  45 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  46
  47 //-----------------------------------------------------------------------------
  48 // data
  49 //-----------------------------------------------------------------------------
  50
  51 extern bool g_blockEventsOnDrag;
  52
  53 //-----------------------------------------------------------------------------
  54 // wxGtkNotebookPage
  55 //-----------------------------------------------------------------------------
  56
  57 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  58 //     allows us to have quite a few functions implemented in the base class)
  59 //     but the page data is kept in a separate list, so we must maintain them
  60 //     in sync manually... of course, the list had been there before the base
  61 //     class which explains it but it still would be nice to do something
  62 //     about this one day
  63
  64 class wxGtkNotebookPage: public wxObject
  65 {
  66 public:
  67     wxGtkNotebookPage()
  68     {
  69         m_image = -1;
  70         m_page = (GtkNotebookPage *) NULL;
  71         m_box = (GtkWidget *) NULL;
  72     }
  73
  74     wxString           m_text;
  75     int                m_image;
  76     GtkNotebookPage   *m_page;
  77     GtkLabel          *m_label;
  78     GtkWidget         *m_box;     // in which the label and image are packed
  79 };
  80
  81
  82 #include "wx/listimpl.cpp"
  83 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  84
  85
  86 //-----------------------------------------------------------------------------
  87 // "switch_page"
  88 //-----------------------------------------------------------------------------
  89
  90 extern "C" {
  91 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  92                                               GtkNotebookPage *WXUNUSED(gpage),
  93                                               guint page,
  94                                               wxNotebook *notebook )
  95 {
  96     // are you trying to call SetSelection() from a notebook event handler?
  97     // you shouldn't!
  98     wxCHECK_RET( !notebook->m_inSwitchPage,
  99                  _T("gtk_notebook_page_change_callback reentered") );
 100
 101     notebook->m_inSwitchPage = true;
 102     if (g_isIdle)
 103         wxapp_install_idle_handler();
 104
 105     int old = notebook->GetSelection();
 106
 107
 108     if (notebook->m_skipNextPageChangeEvent)
 109     {
 110         // this event was programatically generated by ChangeSelection() and thus must
 111         // be skipped
 112         notebook->m_skipNextPageChangeEvent = false;
 113
 114         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 115         // with wxNotebookEvent::GetSelection()) value even though the page is
 116         // not really changed in GTK+
 117         notebook->m_selection = page;
 118     }
 119     else
 120     {
 121         if ( !notebook->SendPageChangingEvent(page) )
 122         {
 123             /* program doesn't allow the page change */
 124             g_signal_stop_emission_by_name (notebook->m_widget,
 125                                             "switch_page");
 126         }
 127         else // change allowed
 128         {
 129             // make wxNotebook::GetSelection() return the correct (i.e. consistent
 130             // with wxNotebookEvent::GetSelection()) value even though the page is
 131             // not really changed in GTK+
 132             notebook->m_selection = page;
 133
 134             notebook->SendPageChangedEvent(old);
 135         }
 136     }
 137
 138     notebook->m_inSwitchPage = false;
 139 }
 140 }
 141
 142 //-----------------------------------------------------------------------------
 143 // "size_allocate"
 144 //-----------------------------------------------------------------------------
 145
 146 extern "C" {
 147 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 148 {
 149     if (g_isIdle)
 150         wxapp_install_idle_handler();
 151
 152     if ((win->m_x == alloc->x) &&
 153         (win->m_y == alloc->y) &&
 154         (win->m_width == alloc->width) &&
 155         (win->m_height == alloc->height))
 156     {
 157         return;
 158     }
 159
 160     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 161
 162     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 163        here in order to make repositioning after resizing to take effect. */
 164     if ((gtk_major_version == 1) &&
 165         (gtk_minor_version == 2) &&
 166         (gtk_micro_version < 6) &&
 167         (win->m_wxwindow) &&
 168         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 169     {
 170         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 171     }
 172 }
 173 }
 174
 175 //-----------------------------------------------------------------------------
 176 // "realize" from m_widget
 177 //-----------------------------------------------------------------------------
 178
 179 extern "C" {
 180 static void
 181 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 182 {
 183     if (g_isIdle)
 184         wxapp_install_idle_handler();
 185
 186     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 187        here in order to make repositioning before showing to take effect. */
 188     gtk_widget_queue_resize( win->m_widget );
 189 }
 190 }
 191
 192 //-----------------------------------------------------------------------------
 193 // "key_press_event"
 194 //-----------------------------------------------------------------------------
 195
 196 extern "C" {
 197 static gboolean
 198 gtk_notebook_key_press_callback( GtkWidget   *widget,
 199                                  GdkEventKey *gdk_event,
 200                                  wxNotebook  *notebook )
 201 {
 202     // don't need to install idle handler, its done from "event" signal
 203
 204     if (!notebook->m_hasVMT) return FALSE;
 205     if (g_blockEventsOnDrag) return FALSE;
 206
 207     /* win is a control: tab can be propagated up */
 208     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 209     {
 210         int page;
 211         int nMax = notebook->GetPageCount();
 212         if ( nMax-- ) // decrement it to get the last valid index
 213         {
 214             int nSel = notebook->GetSelection();
 215
 216             // change selection wrapping if it becomes invalid
 217             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 218                                        : nSel + 1
 219                         : nSel == 0 ? nMax
 220                                     : nSel - 1;
 221         }
 222         else // notebook is empty, no next page
 223         {
 224             return FALSE;
 225         }
 226
 227         // m_selection = page;
 228         gtk_notebook_set_current_page( GTK_NOTEBOOK(widget), page );
 229
 230         return TRUE;
 231     }
 232
 233     /* win is a control: tab can be propagated up */
 234     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 235     {
 236         int sel = notebook->GetSelection();
 237         if (sel == -1)
 238             return TRUE;
 239         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 240         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 241
 242         wxNavigationKeyEvent event;
 243         event.SetEventObject( notebook );
 244         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 245         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 246         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 247         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 248                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 249         event.SetCurrentFocus( notebook );
 250
 251         wxNotebookPage *client = notebook->GetPage(sel);
 252         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 253         {
 254              client->SetFocus();
 255         }
 256
 257         return TRUE;
 258     }
 259
 260     return FALSE;
 261 }
 262 }
 263
 264 //-----------------------------------------------------------------------------
 265 // InsertChild callback for wxNotebook
 266 //-----------------------------------------------------------------------------
 267
 268 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 269 {
 270     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 271     // widget, and takes care of some details such as updating the state and
 272     // style of the child to reflect its new location.  We do this early
 273     // because without it GetBestSize (which is used to set the initial size
 274     // of controls if an explicit size is not given) will often report
 275     // incorrect sizes since the widget's style context is not fully known.
 276     // See bug #901694 for details
 277     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 278     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 279
 280     // NOTE: This should be considered a temporary workaround until we can
 281     // work out the details and implement delaying the setting of the initial
 282     // size of widgets until the size is really needed.
 283 }
 284
 285 //-----------------------------------------------------------------------------
 286 // wxNotebook
 287 //-----------------------------------------------------------------------------
 288
 289 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 290
 291 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 292     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 293 END_EVENT_TABLE()
 294
 295 void wxNotebook::Init()
 296 {
 297     m_padding = 0;
 298     m_inSwitchPage = false;
 299     m_skipNextPageChangeEvent = false;
 300
 301     m_imageList = (wxImageList *) NULL;
 302     m_selection = -1;
 303     m_themeEnabled = true;
 304 }
 305
 306 wxNotebook::wxNotebook()
 307 {
 308     Init();
 309 }
 310
 311 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 312       const wxPoint& pos, const wxSize& size,
 313       long style, const wxString& name )
 314 {
 315     Init();
 316     Create( parent, id, pos, size, style, name );
 317 }
 318
 319 wxNotebook::~wxNotebook()
 320 {
 321     DeleteAllPages();
 322 }
 323
 324 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 325                         const wxPoint& pos, const wxSize& size,
 326                         long style, const wxString& name )
 327 {
 328     m_needParent = true;
 329     m_acceptsFocus = true;
 330     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 331
 332     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 333         style |= wxBK_TOP;
 334
 335     if (!PreCreation( parent, pos, size ) ||
 336         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 337     {
 338         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 339         return false;
 340     }
 341
 342
 343     m_widget = gtk_notebook_new();
 344
 345     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 346
 347     g_signal_connect (m_widget, "switch_page",
 348                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 349
 350     m_parent->DoAddChild( this );
 351
 352     if (m_windowStyle & wxBK_RIGHT)
 353         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 354     if (m_windowStyle & wxBK_LEFT)
 355         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 356     if (m_windowStyle & wxBK_BOTTOM)
 357         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 358
 359     g_signal_connect (m_widget, "key_press_event",
 360                       G_CALLBACK (gtk_notebook_key_press_callback), this);
 361
 362     PostCreation(size);
 363
 364     g_signal_connect (m_widget, "realize",
 365                       G_CALLBACK (gtk_notebook_realized_callback), this);
 366
 367     return true;
 368 }
 369
 370 int wxNotebook::GetSelection() const
 371 {
 372     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 373
 374     if ( m_selection == -1 )
 375     {
 376         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 377
 378         if (g_list_length(nb_pages) != 0)
 379         {
 380             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 381
 382             gpointer cur = notebook->cur_page;
 383             if ( cur != NULL )
 384             {
 385                 wxConstCast(this, wxNotebook)->m_selection =
 386                     g_list_index( nb_pages, cur );
 387             }
 388         }
 389     }
 390
 391     return m_selection;
 392 }
 393
 394 wxString wxNotebook::GetPageText( size_t page ) const
 395 {
 396     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 397
 398     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 399     if (nb_page)
 400         return nb_page->m_text;
 401     else
 402         return wxEmptyString;
 403 }
 404
 405 int wxNotebook::GetPageImage( size_t page ) const
 406 {
 407     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 408
 409     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 410     if (nb_page)
 411         return nb_page->m_image;
 412     else
 413         return -1;
 414 }
 415
 416 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 417 {
 418     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 419
 420     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 421
 422     return m_pagesData.Item(page)->GetData();
 423 }
 424
 425 int wxNotebook::DoSetSelection( size_t page, int flags )
 426 {
 427     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 428
 429     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 430
 431     int selOld = GetSelection();
 432
 433     if ( !(flags & SetSelection_SendEvent) )
 434         m_skipNextPageChangeEvent = true;
 435
 436     // cache the selection
 437     m_selection = page;
 438     gtk_notebook_set_current_page( GTK_NOTEBOOK(m_widget), page );
 439
 440 #ifdef __WXDEBUG__
 441     if ( !(flags & SetSelection_SendEvent) )
 442     {
 443         // gtk_notebook_set_current_page will emit the switch-page signal which will be
 444         // caught by our gtk_notebook_page_change_callback which should have reset the
 445         // flag to false:
 446         wxASSERT(!m_skipNextPageChangeEvent);
 447     }
 448 #endif // __WXDEBUG__
 449
 450     wxNotebookPage *client = GetPage(page);
 451     if ( client )
 452         client->SetFocus();
 453
 454     return selOld;
 455 }
 456
 457 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 458 {
 459     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 460
 461     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 462
 463     wxCHECK_MSG( nb_page, false, wxT("SetPageText: invalid page index") );
 464
 465     nb_page->m_text = text;
 466
 467     gtk_label_set_text( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 468
 469     return true;
 470 }
 471
 472 bool wxNotebook::SetPageImage( size_t page, int image )
 473 {
 474     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 475
 476     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 477
 478     if (!nb_page) return false;
 479
 480     /* Optimization posibility: return immediately if image unchanged.
 481      * Not enabled because it may break existing (stupid) code that
 482      * manipulates the imagelist to cycle images */
 483
 484     /* if (image == nb_page->m_image) return true; */
 485
 486     /* For different cases:
 487        1) no image -> no image
 488        2) image -> no image
 489        3) no image -> image
 490        4) image -> image */
 491
 492     if (image == -1 && nb_page->m_image == -1)
 493         return true; /* Case 1): Nothing to do. */
 494
 495     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 496
 497     if (nb_page->m_image != -1)
 498     {
 499         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 500
 501         GList *child = gtk_container_get_children(GTK_CONTAINER(nb_page->m_box));
 502         while (child)
 503         {
 504             if (GTK_IS_PIXMAP(child->data))
 505             {
 506                 pixmapwid = GTK_WIDGET(child->data);
 507                 break;
 508             }
 509             child = child->next;
 510         }
 511
 512         /* We should have the pixmap widget now */
 513         wxASSERT(pixmapwid != NULL);
 514
 515         if (image == -1)
 516         {
 517             /* If there's no new widget, just remove the old from the box */
 518             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 519             nb_page->m_image = -1;
 520
 521             return true; /* Case 2) */
 522         }
 523     }
 524
 525     /* Only cases 3) and 4) left */
 526     wxASSERT( m_imageList != NULL ); /* Just in case */
 527
 528     /* Construct the new pixmap */
 529     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 530     GdkPixmap *pixmap = bmp->GetPixmap();
 531     GdkBitmap *mask = (GdkBitmap*) NULL;
 532     if ( bmp->GetMask() )
 533     {
 534         mask = bmp->GetMask()->GetBitmap();
 535     }
 536
 537     if (pixmapwid == NULL)
 538     {
 539         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 540         pixmapwid = gtk_pixmap_new (pixmap, mask );
 541
 542         /* CHECKME: Are these pack flags okay? */
 543         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 544         gtk_widget_show(pixmapwid);
 545     }
 546     else
 547     {
 548         /* Case 4) Simply replace the pixmap */
 549         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 550     }
 551
 552     nb_page->m_image = image;
 553
 554     return true;
 555 }
 556
 557 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 558 {
 559     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 560 }
 561
 562 void wxNotebook::SetPadding( const wxSize &padding )
 563 {
 564     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 565
 566     m_padding = padding.GetWidth();
 567
 568     int i;
 569     for (i=0; i<int(GetPageCount()); i++)
 570     {
 571         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 572         wxASSERT(nb_page != NULL);
 573
 574         if (nb_page->m_image != -1)
 575         {
 576             // gtk_box_set_child_packing sets padding on BOTH sides
 577             // icon provides left padding, label provides center and right
 578             int image = nb_page->m_image;
 579             SetPageImage(i,-1);
 580             SetPageImage(i,image);
 581         }
 582         wxASSERT(nb_page->m_label);
 583         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 584                                   GTK_WIDGET(nb_page->m_label),
 585                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 586     }
 587 }
 588
 589 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 590 {
 591     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 592 }
 593
 594 bool wxNotebook::DeleteAllPages()
 595 {
 596     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 597
 598     while (m_pagesData.GetCount() > 0)
 599         DeletePage( m_pagesData.GetCount()-1 );
 600
 601     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 602
 603     InvalidateBestSize();
 604     return wxNotebookBase::DeleteAllPages();
 605 }
 606
 607 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 608 {
 609     if ( m_selection != -1 && (size_t)m_selection >= page )
 610     {
 611         // the index will become invalid after the page is deleted
 612         m_selection = -1;
 613     }
 614
 615     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 616     if ( !client )
 617         return NULL;
 618
 619     gtk_widget_ref( client->m_widget );
 620     gtk_widget_unrealize( client->m_widget );
 621     gtk_widget_unparent( client->m_widget );
 622
 623     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 624     // new page index (when deleting selected page 0, new page is 1 although,
 625     // clearly, the selection should stay 0), so suppress this
 626     g_signal_handlers_disconnect_by_func (m_widget,
 627                                           (gpointer) gtk_notebook_page_change_callback,
 628                                           this);
 629
 630     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 631
 632     g_signal_connect (m_widget, "switch_page",
 633                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 634
 635     wxGtkNotebookPage* p = GetNotebookPage(page);
 636     m_pagesData.DeleteObject(p);
 637     delete p;
 638
 639     return client;
 640 }
 641
 642 bool wxNotebook::InsertPage( size_t position,
 643                              wxNotebookPage* win,
 644                              const wxString& text,
 645                              bool select,
 646                              int imageId )
 647 {
 648     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 649
 650     wxCHECK_MSG( win->GetParent() == this, false,
 651                wxT("Can't add a page whose parent is not the notebook!") );
 652
 653     wxCHECK_MSG( position <= GetPageCount(), false,
 654                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 655
 656     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 657     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 658     // work as it seems to undo too much and will cause errors in the
 659     // gtk_notebook_insert_page below, so instead just clear the parent by
 660     // hand here.
 661     win->m_widget->parent = NULL;
 662
 663     // don't receive switch page during addition
 664     g_signal_handlers_disconnect_by_func (m_widget,
 665                                           (gpointer) gtk_notebook_page_change_callback,
 666                                           this);
 667
 668     if (m_themeEnabled)
 669         win->SetThemeEnabled(true);
 670
 671     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 672
 673     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 674
 675     if ( position == GetPageCount() )
 676         m_pagesData.Append( nb_page );
 677     else
 678         m_pagesData.Insert( position, nb_page );
 679
 680     m_pages.Insert(win, position);
 681
 682     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 683     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 684
 685     g_signal_connect (win->m_widget, "size_allocate",
 686                       G_CALLBACK (gtk_page_size_callback), win);
 687
 688     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 689
 690     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 691
 692     /* set the label image */
 693     nb_page->m_image = imageId;
 694
 695     if (imageId != -1)
 696     {
 697         wxASSERT( m_imageList != NULL );
 698
 699         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 700         GdkPixmap *pixmap = bmp->GetPixmap();
 701         GdkBitmap *mask = (GdkBitmap*) NULL;
 702         if ( bmp->GetMask() )
 703         {
 704             mask = bmp->GetMask()->GetBitmap();
 705         }
 706
 707         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 708
 709         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 710
 711         gtk_widget_show(pixmapwid);
 712     }
 713
 714     /* set the label text */
 715
 716     nb_page->m_text = wxStripMenuCodes(text);
 717     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 718
 719     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 720     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 721
 722     /* apply current style */
 723     GtkRcStyle *style = CreateWidgetStyle();
 724     if ( style )
 725     {
 726         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 727         gtk_rc_style_unref(style);
 728     }
 729
 730     /* show the label */
 731     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 732     if (select && (m_pagesData.GetCount() > 1))
 733     {
 734       SetSelection( position );
 735     }
 736
 737     g_signal_connect (m_widget, "switch_page",
 738                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 739
 740     InvalidateBestSize();
 741     return true;
 742 }
 743
 744 // helper for HitTest(): check if the point lies inside the given widget which
 745 // is the child of the notebook whose position and border size are passed as
 746 // parameters
 747 static bool
 748 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 749                     gint x, gint y, gint border = 0)
 750 {
 751     return
 752         (pt.x >= w->allocation.x - x - border) &&
 753         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 754         (pt.y >= w->allocation.y - y - border) &&
 755         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 756 }
 757
 758 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 759 {
 760     const gint x = m_widget->allocation.x;
 761     const gint y = m_widget->allocation.y;
 762
 763     const size_t count = GetPageCount();
 764     size_t i = 0;
 765
 766     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 767     if (gtk_notebook_get_scrollable(notebook))
 768         i = g_list_position( notebook->children, notebook->first_tab );
 769
 770     for ( ; i < count; i++ )
 771     {
 772         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 773         GtkWidget *box = nb_page->m_box;
 774
 775         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 776
 777         if ( IsPointInsideWidget(pt, box, x, y, border) )
 778         {
 779             // ok, we're inside this tab -- now find out where, if needed
 780             if ( flags )
 781             {
 782                 GtkWidget *pixmap = NULL;
 783
 784                 GList *children = gtk_container_get_children(GTK_CONTAINER(box));
 785                 for ( GList *child = children; child; child = child->next )
 786                 {
 787                     if ( GTK_IS_PIXMAP(child->data) )
 788                     {
 789                         pixmap = GTK_WIDGET(child->data);
 790                         break;
 791                     }
 792                 }
 793
 794                 if ( children )
 795                     g_list_free(children);
 796
 797                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 798                 {
 799                     *flags = wxBK_HITTEST_ONICON;
 800                 }
 801                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 802                 {
 803                     *flags = wxBK_HITTEST_ONLABEL;
 804                 }
 805                 else
 806                 {
 807                     *flags = wxBK_HITTEST_ONITEM;
 808                 }
 809             }
 810
 811             return i;
 812         }
 813     }
 814
 815     if ( flags )
 816     {
 817         *flags = wxBK_HITTEST_NOWHERE;
 818         wxWindowBase * page = GetCurrentPage();
 819         if ( page )
 820         {
 821             // rect origin is in notebook's parent coordinates
 822             wxRect rect = page->GetRect();
 823
 824             // adjust it to the notebook's coordinates
 825             wxPoint pos = GetPosition();
 826             rect.x -= pos.x;
 827             rect.y -= pos.y;
 828             if ( rect.Contains( pt ) )
 829                 *flags |= wxBK_HITTEST_ONPAGE;
 830         }
 831     }
 832
 833     return wxNOT_FOUND;
 834 }
 835
 836 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 837 {
 838     if (event.IsWindowChange())
 839         AdvanceSelection( event.GetDirection() );
 840     else
 841         event.Skip();
 842 }
 843
 844 #if wxUSE_CONSTRAINTS
 845
 846 // override these 2 functions to do nothing: everything is done in OnSize
 847 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 848 {
 849     // don't set the sizes of the pages - their correct size is not yet known
 850     wxControl::SetConstraintSizes(false);
 851 }
 852
 853 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 854 {
 855     return true;
 856 }
 857
 858 #endif
 859
 860 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 861 {
 862     gtk_widget_modify_style(m_widget, style);
 863     size_t cnt = m_pagesData.GetCount();
 864     for (size_t i = 0; i < cnt; i++)
 865         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 866 }
 867
 868 GdkWindow *wxNotebook::GTKGetWindow(wxArrayGdkWindows& windows) const
 869 {
 870     windows.push_back(m_widget->window);
 871     windows.push_back(GTK_NOTEBOOK(m_widget)->event_window);
 872
 873     return NULL;
 874 }
 875
 876 // static
 877 wxVisualAttributes
 878 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 879 {
 880     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 881 }
 882
 883 //-----------------------------------------------------------------------------
 884 // wxNotebookEvent
 885 //-----------------------------------------------------------------------------
 886
 887 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 888
 889 #endif