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 // events
  36 // ----------------------------------------------------------------------------
  37
  38 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  39 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  40
  41 //-----------------------------------------------------------------------------
  42 // idle system
  43 //-----------------------------------------------------------------------------
  44
  45 extern void wxapp_install_idle_handler();
  46 extern bool g_isIdle;
  47
  48 //-----------------------------------------------------------------------------
  49 // data
  50 //-----------------------------------------------------------------------------
  51
  52 extern bool g_blockEventsOnDrag;
  53
  54 //-----------------------------------------------------------------------------
  55 // wxGtkNotebookPage
  56 //-----------------------------------------------------------------------------
  57
  58 // VZ: this is rather ugly as we keep the pages themselves in an array (it
  59 //     allows us to have quite a few functions implemented in the base class)
  60 //     but the page data is kept in a separate list, so we must maintain them
  61 //     in sync manually... of course, the list had been there before the base
  62 //     class which explains it but it still would be nice to do something
  63 //     about this one day
  64
  65 class wxGtkNotebookPage: public wxObject
  66 {
  67 public:
  68     wxGtkNotebookPage()
  69     {
  70         m_image = -1;
  71         m_page = (GtkNotebookPage *) NULL;
  72         m_box = (GtkWidget *) NULL;
  73     }
  74
  75     wxString           m_text;
  76     int                m_image;
  77     GtkNotebookPage   *m_page;
  78     GtkLabel          *m_label;
  79     GtkWidget         *m_box;     // in which the label and image are packed
  80 };
  81
  82
  83 #include "wx/listimpl.cpp"
  84 WX_DEFINE_LIST(wxGtkNotebookPagesList)
  85
  86
  87 //-----------------------------------------------------------------------------
  88 // "switch_page"
  89 //-----------------------------------------------------------------------------
  90
  91 extern "C" {
  92 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  93                                               GtkNotebookPage *WXUNUSED(page),
  94                                               gint page,
  95                                               wxNotebook *notebook )
  96 {
  97     // are you trying to call SetSelection() from a notebook event handler?
  98     // you shouldn't!
  99     wxCHECK_RET( !notebook->m_inSwitchPage,
 100                  _T("gtk_notebook_page_change_callback reentered") );
 101
 102     notebook->m_inSwitchPage = true;
 103     if (g_isIdle)
 104         wxapp_install_idle_handler();
 105
 106     int old = notebook->GetSelection();
 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             gtk_signal_emit_stop_by_name(GTK_OBJECT(notebook->m_widget), "switch_page");
 125         }
 126         else // change allowed
 127         {
 128             // make wxNotebook::GetSelection() return the correct (i.e. consistent
 129             // with wxNotebookEvent::GetSelection()) value even though the page is
 130             // not really changed in GTK+
 131             notebook->m_selection = page;
 132
 133             notebook->SendPageChangedEvent(old);
 134         }
 135     }
 136
 137     notebook->m_inSwitchPage = FALSE;
 138 }
 139 }
 140
 141 //-----------------------------------------------------------------------------
 142 // "size_allocate"
 143 //-----------------------------------------------------------------------------
 144
 145 extern "C" {
 146 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 147 {
 148     if (g_isIdle)
 149         wxapp_install_idle_handler();
 150
 151     if ((win->m_x == alloc->x) &&
 152         (win->m_y == alloc->y) &&
 153         (win->m_width == alloc->width) &&
 154         (win->m_height == alloc->height))
 155     {
 156         return;
 157     }
 158
 159     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 160
 161     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 162        here in order to make repositioning after resizing to take effect. */
 163     if ((gtk_major_version == 1) &&
 164         (gtk_minor_version == 2) &&
 165         (gtk_micro_version < 6) &&
 166         (win->m_wxwindow) &&
 167         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 168     {
 169         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 170     }
 171 }
 172 }
 173
 174 //-----------------------------------------------------------------------------
 175 // "realize" from m_widget
 176 //-----------------------------------------------------------------------------
 177
 178 extern "C" {
 179 static gint
 180 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 181 {
 182     if (g_isIdle)
 183         wxapp_install_idle_handler();
 184
 185     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 186        here in order to make repositioning before showing to take effect. */
 187     gtk_widget_queue_resize( win->m_widget );
 188
 189     return FALSE;
 190 }
 191 }
 192
 193 //-----------------------------------------------------------------------------
 194 // "key_press_event"
 195 //-----------------------------------------------------------------------------
 196
 197 extern "C" {
 198 static gint gtk_notebook_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxNotebook *notebook )
 199 {
 200     if (g_isIdle)
 201         wxapp_install_idle_handler();
 202
 203     if (!notebook->m_hasVMT) return FALSE;
 204     if (g_blockEventsOnDrag) return FALSE;
 205
 206     /* win is a control: tab can be propagated up */
 207     if ((gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right))
 208     {
 209         int page;
 210         int nMax = notebook->GetPageCount();
 211         if ( nMax-- ) // decrement it to get the last valid index
 212         {
 213             int nSel = notebook->GetSelection();
 214
 215             // change selection wrapping if it becomes invalid
 216             page = (gdk_event->keyval != GDK_Left) ? nSel == nMax ? 0
 217                                        : nSel + 1
 218                         : nSel == 0 ? nMax
 219                                     : nSel - 1;
 220         }
 221         else // notebook is empty, no next page
 222         {
 223             return FALSE;
 224         }
 225
 226         // m_selection = page;
 227         gtk_notebook_set_page( GTK_NOTEBOOK(widget), page );
 228
 229         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 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->HandleWindowEvent( event ) )
 253         {
 254              client->SetFocus();
 255         }
 256
 257         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 258         return TRUE;
 259     }
 260
 261     return FALSE;
 262 }
 263 }
 264
 265 //-----------------------------------------------------------------------------
 266 // InsertChild callback for wxNotebook
 267 //-----------------------------------------------------------------------------
 268
 269 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 270 {
 271     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 272     // widget, and takes care of some details such as updating the state and
 273     // style of the child to reflect its new location.  We do this early
 274     // because without it GetBestSize (which is used to set the initial size
 275     // of controls if an explicit size is not given) will often report
 276     // incorrect sizes since the widget's style context is not fully known.
 277     // See bug #901694 for details
 278     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 279     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 280
 281     // NOTE: This should be considered a temporary workaround until we can
 282     // work out the details and implement delaying the setting of the initial
 283     // size of widgets until the size is really needed.
 284 }
 285
 286 //-----------------------------------------------------------------------------
 287 // wxNotebook
 288 //-----------------------------------------------------------------------------
 289
 290 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxBookCtrlBase)
 291
 292 BEGIN_EVENT_TABLE(wxNotebook, wxBookCtrlBase)
 293     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 294 END_EVENT_TABLE()
 295
 296 void wxNotebook::Init()
 297 {
 298     m_padding = 0;
 299     m_inSwitchPage = 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     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 348       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)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     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 360       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 361
 362     PostCreation(size);
 363
 364     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 365                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) 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_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( 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_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     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 627       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 628
 629     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 630
 631     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 632       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 633
 634     wxGtkNotebookPage* p = GetNotebookPage(page);
 635     m_pagesData.DeleteObject(p);
 636     delete p;
 637
 638     return client;
 639 }
 640
 641 bool wxNotebook::InsertPage( size_t position,
 642                              wxNotebookPage* win,
 643                              const wxString& text,
 644                              bool select,
 645                              int imageId )
 646 {
 647     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 648
 649     wxCHECK_MSG( win->GetParent() == this, FALSE,
 650                wxT("Can't add a page whose parent is not the notebook!") );
 651
 652     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 653                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 654
 655     // Hack Alert! (Part II): See above in wxInsertChildInNotebook callback
 656     // why this has to be done.  NOTE: using gtk_widget_unparent here does not
 657     // work as it seems to undo too much and will cause errors in the
 658     // gtk_notebook_insert_page below, so instead just clear the parent by
 659     // hand here.
 660     win->m_widget->parent = NULL;
 661
 662     // don't receive switch page during addition
 663     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 664       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 665
 666     if (m_themeEnabled)
 667         win->SetThemeEnabled(true);
 668
 669     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 670
 671     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 672
 673     if ( position == GetPageCount() )
 674         m_pagesData.Append( nb_page );
 675     else
 676         m_pagesData.Insert( position, nb_page );
 677
 678     m_pages.Insert(win, position);
 679
 680     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 681     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 682
 683     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 684       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 685
 686     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 687
 688     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 689
 690     /* set the label image */
 691     nb_page->m_image = imageId;
 692
 693     if (imageId != -1)
 694     {
 695         wxASSERT( m_imageList != NULL );
 696
 697         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 698         GdkPixmap *pixmap = bmp->GetPixmap();
 699         GdkBitmap *mask = (GdkBitmap*) NULL;
 700         if ( bmp->GetMask() )
 701         {
 702             mask = bmp->GetMask()->GetBitmap();
 703         }
 704
 705         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 706
 707         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 708
 709         gtk_widget_show(pixmapwid);
 710     }
 711
 712     /* set the label text */
 713
 714     nb_page->m_text = text;
 715     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 716
 717     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 718     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 719
 720     /* apply current style */
 721     GtkRcStyle *style = CreateWidgetStyle();
 722     if ( style )
 723     {
 724         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 725         gtk_rc_style_unref(style);
 726     }
 727
 728     /* show the label */
 729     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 730     if (select && (m_pagesData.GetCount() > 1))
 731     {
 732       SetSelection( position );
 733     }
 734
 735     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 736       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 737
 738     InvalidateBestSize();
 739     return true;
 740 }
 741
 742 // helper for HitTest(): check if the point lies inside the given widget which
 743 // is the child of the notebook whose position and border size are passed as
 744 // parameters
 745 static bool
 746 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 747                     gint x, gint y, gint border = 0)
 748 {
 749     return
 750         (pt.x >= w->allocation.x - x - border) &&
 751         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 752         (pt.y >= w->allocation.y - y - border) &&
 753         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 754 }
 755
 756 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 757 {
 758     const gint x = m_widget->allocation.x;
 759     const gint y = m_widget->allocation.y;
 760
 761     const size_t count = GetPageCount();
 762     size_t i = 0;
 763
 764     // MR: Code to fix HitTest index return when tabs are scrolled.
 765     // No idea if it would work for GTK1
 766 #if 0
 767     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 768     if (gtk_notebook_get_scrollable(notebook));
 769         i = g_list_position( notebook->children, notebook->first_tab );
 770 #endif
 771
 772     for ( ; i < count; i++ )
 773     {
 774         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 775         GtkWidget *box = nb_page->m_box;
 776
 777         // VZ: don't know how to find the border width in GTK+ 1.2
 778         const gint border = 0;
 779         if ( IsPointInsideWidget(pt, box, x, y, border) )
 780         {
 781             // ok, we're inside this tab -- now find out where, if needed
 782             if ( flags )
 783             {
 784                 GtkWidget *pixmap = NULL;
 785
 786                 GList *children = gtk_container_children(GTK_CONTAINER(box));
 787                 for ( GList *child = children; child; child = child->next )
 788                 {
 789                     if ( GTK_IS_PIXMAP(child->data) )
 790                     {
 791                         pixmap = GTK_WIDGET(child->data);
 792                         break;
 793                     }
 794                 }
 795
 796                 if ( children )
 797                     g_list_free(children);
 798
 799                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 800                 {
 801                     *flags = wxBK_HITTEST_ONICON;
 802                 }
 803                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 804                 {
 805                     *flags = wxBK_HITTEST_ONLABEL;
 806                 }
 807                 else
 808                 {
 809                     *flags = wxBK_HITTEST_ONITEM;
 810                 }
 811             }
 812
 813             return i;
 814         }
 815     }
 816
 817     if ( flags )
 818         *flags = wxBK_HITTEST_NOWHERE;
 819
 820     return wxNOT_FOUND;
 821 }
 822
 823 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 824 {
 825     if (event.IsWindowChange())
 826         AdvanceSelection( event.GetDirection() );
 827     else
 828         event.Skip();
 829 }
 830
 831 #if wxUSE_CONSTRAINTS
 832
 833 // override these 2 functions to do nothing: everything is done in OnSize
 834 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 835 {
 836     // don't set the sizes of the pages - their correct size is not yet known
 837     wxControl::SetConstraintSizes(FALSE);
 838 }
 839
 840 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 841 {
 842     return true;
 843 }
 844
 845 #endif
 846
 847 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 848 {
 849     gtk_widget_modify_style(m_widget, style);
 850     size_t cnt = m_pagesData.GetCount();
 851     for (size_t i = 0; i < cnt; i++)
 852         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 853 }
 854
 855 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 856 {
 857     return ((m_widget->window == window) ||
 858             (NOTEBOOK_PANEL(m_widget) == window));
 859 }
 860
 861 // static
 862 wxVisualAttributes
 863 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 864 {
 865     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 866 }
 867
 868 //-----------------------------------------------------------------------------
 869 // wxNotebookEvent
 870 //-----------------------------------------------------------------------------
 871
 872 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 873
 874 #endif