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(page),
  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         wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
 122                                     notebook->GetId(), page, old );
 123         eventChanging.SetEventObject( notebook );
 124
 125         if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
 126             !eventChanging.IsAllowed() )
 127         {
 128             /* program doesn't allow the page change */
 129             g_signal_stop_emission_by_name (notebook->m_widget,
 130                                             "switch_page");
 131         }
 132         else // change allowed
 133         {
 134             // make wxNotebook::GetSelection() return the correct (i.e. consistent
 135             // with wxNotebookEvent::GetSelection()) value even though the page is
 136             // not really changed in GTK+
 137             notebook->m_selection = page;
 138
 139             wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
 140                                         notebook->GetId(), page, old );
 141             eventChanged.SetEventObject( notebook );
 142             notebook->GetEventHandler()->ProcessEvent( eventChanged );
 143         }
 144     }
 145
 146     notebook->m_inSwitchPage = false;
 147 }
 148 }
 149
 150 //-----------------------------------------------------------------------------
 151 // "size_allocate"
 152 //-----------------------------------------------------------------------------
 153
 154 extern "C" {
 155 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 156 {
 157     if (g_isIdle)
 158         wxapp_install_idle_handler();
 159
 160     if ((win->m_x == alloc->x) &&
 161         (win->m_y == alloc->y) &&
 162         (win->m_width == alloc->width) &&
 163         (win->m_height == alloc->height))
 164     {
 165         return;
 166     }
 167
 168     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 169
 170     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 171        here in order to make repositioning after resizing to take effect. */
 172     if ((gtk_major_version == 1) &&
 173         (gtk_minor_version == 2) &&
 174         (gtk_micro_version < 6) &&
 175         (win->m_wxwindow) &&
 176         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 177     {
 178         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 179     }
 180 }
 181 }
 182
 183 //-----------------------------------------------------------------------------
 184 // "realize" from m_widget
 185 //-----------------------------------------------------------------------------
 186
 187 extern "C" {
 188 static void
 189 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 190 {
 191     if (g_isIdle)
 192         wxapp_install_idle_handler();
 193
 194     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 195        here in order to make repositioning before showing to take effect. */
 196     gtk_widget_queue_resize( win->m_widget );
 197 }
 198 }
 199
 200 //-----------------------------------------------------------------------------
 201 // "key_press_event"
 202 //-----------------------------------------------------------------------------
 203
 204 extern "C" {
 205 static gboolean
 206 gtk_notebook_key_press_callback( GtkWidget   *widget,
 207                                  GdkEventKey *gdk_event,
 208                                  wxNotebook  *notebook )
 209 {
 210     // don't need to install idle handler, its done from "event" signal
 211
 212     if (!notebook->m_hasVMT) return FALSE;
 213     if (g_blockEventsOnDrag) return FALSE;
 214
 215     /* win is a control: tab can be propagated up */
 216     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 217     {
 218         int page;
 219         int nMax = notebook->GetPageCount();
 220         if ( nMax-- ) // decrement it to get the last valid index
 221         {
 222             int nSel = notebook->GetSelection();
 223
 224             // change selection wrapping if it becomes invalid
 225             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 226                                        : nSel + 1
 227                         : nSel == 0 ? nMax
 228                                     : nSel - 1;
 229         }
 230         else // notebook is empty, no next page
 231         {
 232             return FALSE;
 233         }
 234
 235         // m_selection = page;
 236         gtk_notebook_set_current_page( GTK_NOTEBOOK(widget), page );
 237
 238         return TRUE;
 239     }
 240
 241     /* win is a control: tab can be propagated up */
 242     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 243     {
 244         int sel = notebook->GetSelection();
 245         if (sel == -1)
 246             return TRUE;
 247         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 248         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 249
 250         wxNavigationKeyEvent event;
 251         event.SetEventObject( notebook );
 252         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 253         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 254         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 255         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 256                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 257         event.SetCurrentFocus( notebook );
 258
 259         wxNotebookPage *client = notebook->GetPage(sel);
 260         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 261         {
 262              client->SetFocus();
 263         }
 264
 265         return TRUE;
 266     }
 267
 268     return FALSE;
 269 }
 270 }
 271
 272 //-----------------------------------------------------------------------------
 273 // InsertChild callback for wxNotebook
 274 //-----------------------------------------------------------------------------
 275
 276 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 277 {
 278     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 279     // widget, and takes care of some details such as updating the state and
 280     // style of the child to reflect its new location.  We do this early
 281     // because without it GetBestSize (which is used to set the initial size
 282     // of controls if an explicit size is not given) will often report
 283     // incorrect sizes since the widget's style context is not fully known.
 284     // See bug #901694 for details
 285     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 286     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 287
 288     // NOTE: This should be considered a temporary workaround until we can
 289     // work out the details and implement delaying the setting of the initial
 290     // size of widgets until the size is really needed.
 291 }
 292
 293 //-----------------------------------------------------------------------------
 294 // wxNotebook
 295 //-----------------------------------------------------------------------------
 296
 297 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 298
 299 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 300     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 301 END_EVENT_TABLE()
 302
 303 void wxNotebook::Init()
 304 {
 305     m_padding = 0;
 306     m_inSwitchPage = false;
 307     m_skipNextPageChangeEvent = false;
 308
 309     m_imageList = (wxImageList *) NULL;
 310     m_selection = -1;
 311     m_themeEnabled = true;
 312 }
 313
 314 wxNotebook::wxNotebook()
 315 {
 316     Init();
 317 }
 318
 319 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 320       const wxPoint& pos, const wxSize& size,
 321       long style, const wxString& name )
 322 {
 323     Init();
 324     Create( parent, id, pos, size, style, name );
 325 }
 326
 327 wxNotebook::~wxNotebook()
 328 {
 329     DeleteAllPages();
 330 }
 331
 332 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 333                         const wxPoint& pos, const wxSize& size,
 334                         long style, const wxString& name )
 335 {
 336     m_needParent = true;
 337     m_acceptsFocus = true;
 338     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 339
 340     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 341         style |= wxBK_TOP;
 342
 343     if (!PreCreation( parent, pos, size ) ||
 344         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 345     {
 346         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 347         return false;
 348     }
 349
 350
 351     m_widget = gtk_notebook_new();
 352
 353     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 354
 355     g_signal_connect (m_widget, "switch_page",
 356                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 357
 358     m_parent->DoAddChild( this );
 359
 360     if (m_windowStyle & wxBK_RIGHT)
 361         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 362     if (m_windowStyle & wxBK_LEFT)
 363         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 364     if (m_windowStyle & wxBK_BOTTOM)
 365         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 366
 367     g_signal_connect (m_widget, "key_press_event",
 368                       G_CALLBACK (gtk_notebook_key_press_callback), this);
 369
 370     PostCreation(size);
 371
 372     g_signal_connect (m_widget, "realize",
 373                       G_CALLBACK (gtk_notebook_realized_callback), this);
 374
 375     return true;
 376 }
 377
 378 int wxNotebook::GetSelection() const
 379 {
 380     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 381
 382     if ( m_selection == -1 )
 383     {
 384         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 385
 386         if (g_list_length(nb_pages) != 0)
 387         {
 388             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 389
 390             gpointer cur = notebook->cur_page;
 391             if ( cur != NULL )
 392             {
 393                 wxConstCast(this, wxNotebook)->m_selection =
 394                     g_list_index( nb_pages, cur );
 395             }
 396         }
 397     }
 398
 399     return m_selection;
 400 }
 401
 402 wxString wxNotebook::GetPageText( size_t page ) const
 403 {
 404     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 405
 406     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 407     if (nb_page)
 408         return nb_page->m_text;
 409     else
 410         return wxEmptyString;
 411 }
 412
 413 int wxNotebook::GetPageImage( size_t page ) const
 414 {
 415     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 416
 417     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 418     if (nb_page)
 419         return nb_page->m_image;
 420     else
 421         return -1;
 422 }
 423
 424 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 425 {
 426     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 427
 428     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 429
 430     return m_pagesData.Item(page)->GetData();
 431 }
 432
 433 int wxNotebook::DoSetSelection( size_t page, int flags )
 434 {
 435     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 436
 437     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 438
 439     int selOld = GetSelection();
 440
 441     if ( !(flags & SetSelection_SendEvent) )
 442         m_skipNextPageChangeEvent = true;
 443
 444     // cache the selection
 445     m_selection = page;
 446     gtk_notebook_set_current_page( GTK_NOTEBOOK(m_widget), page );
 447
 448 #ifdef __WXDEBUG__
 449     if ( !(flags & SetSelection_SendEvent) )
 450     {
 451         // gtk_notebook_set_current_page will emit the switch-page signal which will be
 452         // caught by our gtk_notebook_page_change_callback which should have reset the
 453         // flag to false:
 454         wxASSERT(!m_skipNextPageChangeEvent);
 455     }
 456 #endif // __WXDEBUG__
 457
 458     wxNotebookPage *client = GetPage(page);
 459     if ( client )
 460         client->SetFocus();
 461
 462     return selOld;
 463 }
 464
 465 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 466 {
 467     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 468
 469     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 470
 471     wxCHECK_MSG( nb_page, false, wxT("SetPageText: invalid page index") );
 472
 473     nb_page->m_text = text;
 474
 475     gtk_label_set_text( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 476
 477     return true;
 478 }
 479
 480 bool wxNotebook::SetPageImage( size_t page, int image )
 481 {
 482     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 483
 484     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 485
 486     if (!nb_page) return false;
 487
 488     /* Optimization posibility: return immediately if image unchanged.
 489      * Not enabled because it may break existing (stupid) code that
 490      * manipulates the imagelist to cycle images */
 491
 492     /* if (image == nb_page->m_image) return true; */
 493
 494     /* For different cases:
 495        1) no image -> no image
 496        2) image -> no image
 497        3) no image -> image
 498        4) image -> image */
 499
 500     if (image == -1 && nb_page->m_image == -1)
 501         return true; /* Case 1): Nothing to do. */
 502
 503     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 504
 505     if (nb_page->m_image != -1)
 506     {
 507         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 508
 509         GList *child = gtk_container_get_children(GTK_CONTAINER(nb_page->m_box));
 510         while (child)
 511         {
 512             if (GTK_IS_PIXMAP(child->data))
 513             {
 514                 pixmapwid = GTK_WIDGET(child->data);
 515                 break;
 516             }
 517             child = child->next;
 518         }
 519
 520         /* We should have the pixmap widget now */
 521         wxASSERT(pixmapwid != NULL);
 522
 523         if (image == -1)
 524         {
 525             /* If there's no new widget, just remove the old from the box */
 526             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 527             nb_page->m_image = -1;
 528
 529             return true; /* Case 2) */
 530         }
 531     }
 532
 533     /* Only cases 3) and 4) left */
 534     wxASSERT( m_imageList != NULL ); /* Just in case */
 535
 536     /* Construct the new pixmap */
 537     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 538     GdkPixmap *pixmap = bmp->GetPixmap();
 539     GdkBitmap *mask = (GdkBitmap*) NULL;
 540     if ( bmp->GetMask() )
 541     {
 542         mask = bmp->GetMask()->GetBitmap();
 543     }
 544
 545     if (pixmapwid == NULL)
 546     {
 547         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 548         pixmapwid = gtk_pixmap_new (pixmap, mask );
 549
 550         /* CHECKME: Are these pack flags okay? */
 551         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 552         gtk_widget_show(pixmapwid);
 553     }
 554     else
 555     {
 556         /* Case 4) Simply replace the pixmap */
 557         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 558     }
 559
 560     nb_page->m_image = image;
 561
 562     return true;
 563 }
 564
 565 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 566 {
 567     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 568 }
 569
 570 void wxNotebook::SetPadding( const wxSize &padding )
 571 {
 572     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 573
 574     m_padding = padding.GetWidth();
 575
 576     int i;
 577     for (i=0; i<int(GetPageCount()); i++)
 578     {
 579         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 580         wxASSERT(nb_page != NULL);
 581
 582         if (nb_page->m_image != -1)
 583         {
 584             // gtk_box_set_child_packing sets padding on BOTH sides
 585             // icon provides left padding, label provides center and right
 586             int image = nb_page->m_image;
 587             SetPageImage(i,-1);
 588             SetPageImage(i,image);
 589         }
 590         wxASSERT(nb_page->m_label);
 591         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 592                                   GTK_WIDGET(nb_page->m_label),
 593                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 594     }
 595 }
 596
 597 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 598 {
 599     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 600 }
 601
 602 bool wxNotebook::DeleteAllPages()
 603 {
 604     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 605
 606     while (m_pagesData.GetCount() > 0)
 607         DeletePage( m_pagesData.GetCount()-1 );
 608
 609     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 610
 611     InvalidateBestSize();
 612     return wxNotebookBase::DeleteAllPages();
 613 }
 614
 615 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 616 {
 617     if ( m_selection != -1 && (size_t)m_selection >= page )
 618     {
 619         // the index will become invalid after the page is deleted
 620         m_selection = -1;
 621     }
 622
 623     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 624     if ( !client )
 625         return NULL;
 626
 627     gtk_widget_ref( client->m_widget );
 628     gtk_widget_unrealize( client->m_widget );
 629     gtk_widget_unparent( client->m_widget );
 630
 631     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 632     // new page index (when deleting selected page 0, new page is 1 although,
 633     // clearly, the selection should stay 0), so suppress this
 634     g_signal_handlers_disconnect_by_func (m_widget,
 635                                           (gpointer) gtk_notebook_page_change_callback,
 636                                           this);
 637
 638     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 639
 640     g_signal_connect (m_widget, "switch_page",
 641                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 642
 643     wxGtkNotebookPage* p = GetNotebookPage(page);
 644     m_pagesData.DeleteObject(p);
 645     delete p;
 646
 647     return client;
 648 }
 649
 650 bool wxNotebook::InsertPage( size_t position,
 651                              wxNotebookPage* win,
 652                              const wxString& text,
 653                              bool select,
 654                              int imageId )
 655 {
 656     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid notebook") );
 657
 658     wxCHECK_MSG( win->GetParent() == this, false,
 659                wxT("Can't add a page whose parent is not the notebook!") );
 660
 661     wxCHECK_MSG( position <= GetPageCount(), false,
 662                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 663
 664     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 665     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 666     // work as it seems to undo too much and will cause errors in the
 667     // gtk_notebook_insert_page below, so instead just clear the parent by
 668     // hand here.
 669     win->m_widget->parent = NULL;
 670
 671     // don't receive switch page during addition
 672     g_signal_handlers_disconnect_by_func (m_widget,
 673                                           (gpointer) gtk_notebook_page_change_callback,
 674                                           this);
 675
 676     if (m_themeEnabled)
 677         win->SetThemeEnabled(true);
 678
 679     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 680
 681     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 682
 683     if ( position == GetPageCount() )
 684         m_pagesData.Append( nb_page );
 685     else
 686         m_pagesData.Insert( position, nb_page );
 687
 688     m_pages.Insert(win, position);
 689
 690     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 691     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 692
 693     g_signal_connect (win->m_widget, "size_allocate",
 694                       G_CALLBACK (gtk_page_size_callback), win);
 695
 696     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 697
 698     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 699
 700     /* set the label image */
 701     nb_page->m_image = imageId;
 702
 703     if (imageId != -1)
 704     {
 705         wxASSERT( m_imageList != NULL );
 706
 707         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 708         GdkPixmap *pixmap = bmp->GetPixmap();
 709         GdkBitmap *mask = (GdkBitmap*) NULL;
 710         if ( bmp->GetMask() )
 711         {
 712             mask = bmp->GetMask()->GetBitmap();
 713         }
 714
 715         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 716
 717         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 718
 719         gtk_widget_show(pixmapwid);
 720     }
 721
 722     /* set the label text */
 723
 724     nb_page->m_text = wxStripMenuCodes(text);
 725     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 726
 727     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 728     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 729
 730     /* apply current style */
 731     GtkRcStyle *style = CreateWidgetStyle();
 732     if ( style )
 733     {
 734         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 735         gtk_rc_style_unref(style);
 736     }
 737
 738     /* show the label */
 739     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 740     if (select && (m_pagesData.GetCount() > 1))
 741     {
 742       SetSelection( position );
 743     }
 744
 745     g_signal_connect (m_widget, "switch_page",
 746                       G_CALLBACK (gtk_notebook_page_change_callback), this);
 747
 748     InvalidateBestSize();
 749     return true;
 750 }
 751
 752 // helper for HitTest(): check if the point lies inside the given widget which
 753 // is the child of the notebook whose position and border size are passed as
 754 // parameters
 755 static bool
 756 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 757                     gint x, gint y, gint border = 0)
 758 {
 759     return
 760         (pt.x >= w->allocation.x - x - border) &&
 761         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 762         (pt.y >= w->allocation.y - y - border) &&
 763         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 764 }
 765
 766 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 767 {
 768     const gint x = m_widget->allocation.x;
 769     const gint y = m_widget->allocation.y;
 770
 771     const size_t count = GetPageCount();
 772     size_t i = 0;
 773
 774     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 775     if (gtk_notebook_get_scrollable(notebook))
 776         i = g_list_position( notebook->children, notebook->first_tab );
 777
 778     for ( ; i < count; i++ )
 779     {
 780         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 781         GtkWidget *box = nb_page->m_box;
 782
 783         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 784
 785         if ( IsPointInsideWidget(pt, box, x, y, border) )
 786         {
 787             // ok, we're inside this tab -- now find out where, if needed
 788             if ( flags )
 789             {
 790                 GtkWidget *pixmap = NULL;
 791
 792                 GList *children = gtk_container_get_children(GTK_CONTAINER(box));
 793                 for ( GList *child = children; child; child = child->next )
 794                 {
 795                     if ( GTK_IS_PIXMAP(child->data) )
 796                     {
 797                         pixmap = GTK_WIDGET(child->data);
 798                         break;
 799                     }
 800                 }
 801
 802                 if ( children )
 803                     g_list_free(children);
 804
 805                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 806                 {
 807                     *flags = wxBK_HITTEST_ONICON;
 808                 }
 809                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 810                 {
 811                     *flags = wxBK_HITTEST_ONLABEL;
 812                 }
 813                 else
 814                 {
 815                     *flags = wxBK_HITTEST_ONITEM;
 816                 }
 817             }
 818
 819             return i;
 820         }
 821     }
 822
 823     if ( flags )
 824     {
 825         *flags = wxBK_HITTEST_NOWHERE;
 826         wxWindowBase * page = GetCurrentPage();
 827         if ( page )
 828         {
 829             // rect origin is in notebook's parent coordinates
 830             wxRect rect = page->GetRect();
 831
 832             // adjust it to the notebook's coordinates
 833             wxPoint pos = GetPosition();
 834             rect.x -= pos.x;
 835             rect.y -= pos.y;
 836             if ( rect.Contains( pt ) )
 837                 *flags |= wxBK_HITTEST_ONPAGE;
 838         }
 839     }
 840
 841     return wxNOT_FOUND;
 842 }
 843
 844 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 845 {
 846     if (event.IsWindowChange())
 847         AdvanceSelection( event.GetDirection() );
 848     else
 849         event.Skip();
 850 }
 851
 852 #if wxUSE_CONSTRAINTS
 853
 854 // override these 2 functions to do nothing: everything is done in OnSize
 855 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 856 {
 857     // don't set the sizes of the pages - their correct size is not yet known
 858     wxControl::SetConstraintSizes(false);
 859 }
 860
 861 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 862 {
 863     return true;
 864 }
 865
 866 #endif
 867
 868 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 869 {
 870     gtk_widget_modify_style(m_widget, style);
 871     size_t cnt = m_pagesData.GetCount();
 872     for (size_t i = 0; i < cnt; i++)
 873         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 874 }
 875
 876 GdkWindow *wxNotebook::GTKGetWindow(wxArrayGdkWindows& windows) const
 877 {
 878     windows.push_back(m_widget->window);
 879     windows.push_back(GTK_NOTEBOOK(m_widget)->event_window);
 880
 881     return NULL;
 882 }
 883
 884 // static
 885 wxVisualAttributes
 886 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 887 {
 888     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 889 }
 890
 891 //-----------------------------------------------------------------------------
 892 // wxNotebookEvent
 893 //-----------------------------------------------------------------------------
 894
 895 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 896
 897 #endif