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         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 gint
 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     return FALSE;
 199 }
 200 }
 201
 202 //-----------------------------------------------------------------------------
 203 // "key_press_event"
 204 //-----------------------------------------------------------------------------
 205
 206 extern "C" {
 207 static gint gtk_notebook_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxNotebook *notebook )
 208 {
 209     if (g_isIdle)
 210         wxapp_install_idle_handler();
 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_page( GTK_NOTEBOOK(widget), page );
 237
 238         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 239         return TRUE;
 240     }
 241
 242     /* win is a control: tab can be propagated up */
 243     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 244     {
 245         int sel = notebook->GetSelection();
 246         if (sel == -1)
 247             return TRUE;
 248         wxGtkNotebookPage *nb_page = notebook->GetNotebookPage(sel);
 249         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 250
 251         wxNavigationKeyEvent event;
 252         event.SetEventObject( notebook );
 253         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 254         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 255         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 256         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) ||
 257                                (gdk_event->keyval == GDK_Left) || (gdk_event->keyval == GDK_Right) );
 258         event.SetCurrentFocus( notebook );
 259
 260         wxNotebookPage *client = notebook->GetPage(sel);
 261         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 262         {
 263              client->SetFocus();
 264         }
 265
 266         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 267         return TRUE;
 268     }
 269
 270     return FALSE;
 271 }
 272 }
 273
 274 //-----------------------------------------------------------------------------
 275 // InsertChild callback for wxNotebook
 276 //-----------------------------------------------------------------------------
 277
 278 static void wxInsertChildInNotebook( wxNotebook* parent, wxWindow* child )
 279 {
 280     // Hack Alert! (Part I): This sets the notebook as the parent of the child
 281     // widget, and takes care of some details such as updating the state and
 282     // style of the child to reflect its new location.  We do this early
 283     // because without it GetBestSize (which is used to set the initial size
 284     // of controls if an explicit size is not given) will often report
 285     // incorrect sizes since the widget's style context is not fully known.
 286     // See bug #901694 for details
 287     // (http://sourceforge.net/tracker/?func=detail&aid=901694&group_id=9863&atid=109863)
 288     gtk_widget_set_parent(child->m_widget, parent->m_widget);
 289
 290     // NOTE: This should be considered a temporary workaround until we can
 291     // work out the details and implement delaying the setting of the initial
 292     // size of widgets until the size is really needed.
 293 }
 294
 295 //-----------------------------------------------------------------------------
 296 // wxNotebook
 297 //-----------------------------------------------------------------------------
 298
 299 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 300
 301 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 302     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 303 END_EVENT_TABLE()
 304
 305 void wxNotebook::Init()
 306 {
 307     m_padding = 0;
 308     m_inSwitchPage = false;
 309
 310     m_imageList = (wxImageList *) NULL;
 311     m_selection = -1;
 312     m_themeEnabled = true;
 313 }
 314
 315 wxNotebook::wxNotebook()
 316 {
 317     Init();
 318 }
 319
 320 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 321       const wxPoint& pos, const wxSize& size,
 322       long style, const wxString& name )
 323 {
 324     Init();
 325     Create( parent, id, pos, size, style, name );
 326 }
 327
 328 wxNotebook::~wxNotebook()
 329 {
 330     DeleteAllPages();
 331 }
 332
 333 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 334                         const wxPoint& pos, const wxSize& size,
 335                         long style, const wxString& name )
 336 {
 337     m_needParent = true;
 338     m_acceptsFocus = true;
 339     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 340
 341     if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT )
 342         style |= wxBK_TOP;
 343
 344     if (!PreCreation( parent, pos, size ) ||
 345         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 346     {
 347         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 348         return false;
 349     }
 350
 351
 352     m_widget = gtk_notebook_new();
 353
 354     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 355
 356     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 357       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 358
 359     m_parent->DoAddChild( this );
 360
 361     if (m_windowStyle & wxBK_RIGHT)
 362         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 363     if (m_windowStyle & wxBK_LEFT)
 364         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 365     if (m_windowStyle & wxBK_BOTTOM)
 366         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 367
 368     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 369       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 370
 371     PostCreation(size);
 372
 373     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 374                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 375
 376     return true;
 377 }
 378
 379 int wxNotebook::GetSelection() const
 380 {
 381     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 382
 383     if ( m_selection == -1 )
 384     {
 385         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 386
 387         if (g_list_length(nb_pages) != 0)
 388         {
 389             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 390
 391             gpointer cur = notebook->cur_page;
 392             if ( cur != NULL )
 393             {
 394                 wxConstCast(this, wxNotebook)->m_selection =
 395                     g_list_index( nb_pages, cur );
 396             }
 397         }
 398     }
 399
 400     return m_selection;
 401 }
 402
 403 wxString wxNotebook::GetPageText( size_t page ) const
 404 {
 405     wxCHECK_MSG( m_widget != NULL, wxEmptyString, wxT("invalid notebook") );
 406
 407     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 408     if (nb_page)
 409         return nb_page->m_text;
 410     else
 411         return wxEmptyString;
 412 }
 413
 414 int wxNotebook::GetPageImage( size_t page ) const
 415 {
 416     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 417
 418     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 419     if (nb_page)
 420         return nb_page->m_image;
 421     else
 422         return -1;
 423 }
 424
 425 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 426 {
 427     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 428
 429     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 430
 431     return m_pagesData.Item(page)->GetData();
 432 }
 433
 434 int wxNotebook::DoSetSelection( size_t page, int flags )
 435 {
 436     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 437
 438     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 439
 440     int selOld = GetSelection();
 441
 442     if ( !(flags & SetSelection_SendEvent) )
 443         m_skipNextPageChangeEvent = true;
 444
 445     // cache the selection
 446     m_selection = page;
 447     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 448
 449 #ifdef __WXDEBUG__
 450     if ( !(flags & SetSelection_SendEvent) )
 451     {
 452             // gtk_notebook_set_current_page will emit the switch-page signal which will be
 453             // caught by our gtk_notebook_page_change_callback which should have reset the
 454             // flag to false:
 455         wxASSERT(!m_skipNextPageChangeEvent);
 456     }
 457 #endif // __WXDEBUG__
 458
 459     wxNotebookPage *client = GetPage(page);
 460     if ( client )
 461         client->SetFocus();
 462
 463     return selOld;
 464 }
 465
 466 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 467 {
 468     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 469
 470     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 471
 472     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 473
 474     nb_page->m_text = text;
 475
 476     gtk_label_set( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 477
 478     return true;
 479 }
 480
 481 bool wxNotebook::SetPageImage( size_t page, int image )
 482 {
 483     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 484
 485     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 486
 487     if (!nb_page) return FALSE;
 488
 489     /* Optimization posibility: return immediately if image unchanged.
 490      * Not enabled because it may break existing (stupid) code that
 491      * manipulates the imagelist to cycle images */
 492
 493     /* if (image == nb_page->m_image) return true; */
 494
 495     /* For different cases:
 496        1) no image -> no image
 497        2) image -> no image
 498        3) no image -> image
 499        4) image -> image */
 500
 501     if (image == -1 && nb_page->m_image == -1)
 502         return true; /* Case 1): Nothing to do. */
 503
 504     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 505
 506     if (nb_page->m_image != -1)
 507     {
 508         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 509
 510         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 511         while (child)
 512         {
 513             if (GTK_IS_PIXMAP(child->data))
 514             {
 515                 pixmapwid = GTK_WIDGET(child->data);
 516                 break;
 517             }
 518             child = child->next;
 519         }
 520
 521         /* We should have the pixmap widget now */
 522         wxASSERT(pixmapwid != NULL);
 523
 524         if (image == -1)
 525         {
 526             /* If there's no new widget, just remove the old from the box */
 527             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 528             nb_page->m_image = -1;
 529
 530             return true; /* Case 2) */
 531         }
 532     }
 533
 534     /* Only cases 3) and 4) left */
 535     wxASSERT( m_imageList != NULL ); /* Just in case */
 536
 537     /* Construct the new pixmap */
 538     const wxBitmap *bmp = m_imageList->GetBitmapPtr(image);
 539     GdkPixmap *pixmap = bmp->GetPixmap();
 540     GdkBitmap *mask = (GdkBitmap*) NULL;
 541     if ( bmp->GetMask() )
 542     {
 543         mask = bmp->GetMask()->GetBitmap();
 544     }
 545
 546     if (pixmapwid == NULL)
 547     {
 548         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 549         pixmapwid = gtk_pixmap_new (pixmap, mask );
 550
 551         /* CHECKME: Are these pack flags okay? */
 552         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 553         gtk_widget_show(pixmapwid);
 554     }
 555     else
 556     {
 557         /* Case 4) Simply replace the pixmap */
 558         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 559     }
 560
 561     nb_page->m_image = image;
 562
 563     return true;
 564 }
 565
 566 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 567 {
 568     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 569 }
 570
 571 void wxNotebook::SetPadding( const wxSize &padding )
 572 {
 573     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 574
 575     m_padding = padding.GetWidth();
 576
 577     int i;
 578     for (i=0; i<int(GetPageCount()); i++)
 579     {
 580         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 581         wxASSERT(nb_page != NULL);
 582
 583         if (nb_page->m_image != -1)
 584         {
 585             // gtk_box_set_child_packing sets padding on BOTH sides
 586             // icon provides left padding, label provides center and right
 587             int image = nb_page->m_image;
 588             SetPageImage(i,-1);
 589             SetPageImage(i,image);
 590         }
 591         wxASSERT(nb_page->m_label);
 592         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 593                                   GTK_WIDGET(nb_page->m_label),
 594                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 595     }
 596 }
 597
 598 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 599 {
 600     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 601 }
 602
 603 bool wxNotebook::DeleteAllPages()
 604 {
 605     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 606
 607     while (m_pagesData.GetCount() > 0)
 608         DeletePage( m_pagesData.GetCount()-1 );
 609
 610     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 611
 612     InvalidateBestSize();
 613     return wxNotebookBase::DeleteAllPages();
 614 }
 615
 616 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 617 {
 618     if ( m_selection != -1 && (size_t)m_selection >= page )
 619     {
 620         // the index will become invalid after the page is deleted
 621         m_selection = -1;
 622     }
 623
 624     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 625     if ( !client )
 626         return NULL;
 627
 628     gtk_widget_ref( client->m_widget );
 629     gtk_widget_unrealize( client->m_widget );
 630     gtk_widget_unparent( client->m_widget );
 631
 632     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 633     // new page index (when deleting selected page 0, new page is 1 although,
 634     // clearly, the selection should stay 0), so suppress this
 635     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 636       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 637
 638     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 639
 640     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 641       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)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     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 673       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 674
 675     if (m_themeEnabled)
 676         win->SetThemeEnabled(true);
 677
 678     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 679
 680     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 681
 682     if ( position == GetPageCount() )
 683         m_pagesData.Append( nb_page );
 684     else
 685         m_pagesData.Insert( position, nb_page );
 686
 687     m_pages.Insert(win, position);
 688
 689     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 690     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 691
 692     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 693       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 694
 695     gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 696
 697     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 698
 699     /* set the label image */
 700     nb_page->m_image = imageId;
 701
 702     if (imageId != -1)
 703     {
 704         wxASSERT( m_imageList != NULL );
 705
 706         const wxBitmap *bmp = m_imageList->GetBitmapPtr(imageId);
 707         GdkPixmap *pixmap = bmp->GetPixmap();
 708         GdkBitmap *mask = (GdkBitmap*) NULL;
 709         if ( bmp->GetMask() )
 710         {
 711             mask = bmp->GetMask()->GetBitmap();
 712         }
 713
 714         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 715
 716         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 717
 718         gtk_widget_show(pixmapwid);
 719     }
 720
 721     /* set the label text */
 722
 723     nb_page->m_text = text;
 724     if (nb_page->m_text.empty()) nb_page->m_text = wxEmptyString;
 725
 726     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 727     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 728
 729     /* apply current style */
 730     GtkRcStyle *style = CreateWidgetStyle();
 731     if ( style )
 732     {
 733         gtk_widget_modify_style(GTK_WIDGET(nb_page->m_label), style);
 734         gtk_rc_style_unref(style);
 735     }
 736
 737     /* show the label */
 738     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 739     if (select && (m_pagesData.GetCount() > 1))
 740     {
 741       SetSelection( position );
 742     }
 743
 744     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 745       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 746
 747     InvalidateBestSize();
 748     return true;
 749 }
 750
 751 // helper for HitTest(): check if the point lies inside the given widget which
 752 // is the child of the notebook whose position and border size are passed as
 753 // parameters
 754 static bool
 755 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 756                     gint x, gint y, gint border = 0)
 757 {
 758     return
 759         (pt.x >= w->allocation.x - x - border) &&
 760         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 761         (pt.y >= w->allocation.y - y - border) &&
 762         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 763 }
 764
 765 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 766 {
 767     const gint x = m_widget->allocation.x;
 768     const gint y = m_widget->allocation.y;
 769
 770     const size_t count = GetPageCount();
 771     size_t i = 0;
 772
 773     // MR: Code to fix HitTest index return when tabs are scrolled.
 774     // No idea if it would work for GTK1
 775 #if 0
 776     GtkNotebook * notebook = GTK_NOTEBOOK(m_widget);
 777     if (gtk_notebook_get_scrollable(notebook));
 778         i = g_list_position( notebook->children, notebook->first_tab );
 779 #endif
 780
 781     for ( ; i < count; i++ )
 782     {
 783         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 784         GtkWidget *box = nb_page->m_box;
 785
 786         // VZ: don't know how to find the border width in GTK+ 1.2
 787         const gint border = 0;
 788         if ( IsPointInsideWidget(pt, box, x, y, border) )
 789         {
 790             // ok, we're inside this tab -- now find out where, if needed
 791             if ( flags )
 792             {
 793                 GtkWidget *pixmap = NULL;
 794
 795                 GList *children = gtk_container_children(GTK_CONTAINER(box));
 796                 for ( GList *child = children; child; child = child->next )
 797                 {
 798                     if ( GTK_IS_PIXMAP(child->data) )
 799                     {
 800                         pixmap = GTK_WIDGET(child->data);
 801                         break;
 802                     }
 803                 }
 804
 805                 if ( children )
 806                     g_list_free(children);
 807
 808                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 809                 {
 810                     *flags = wxBK_HITTEST_ONICON;
 811                 }
 812                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 813                 {
 814                     *flags = wxBK_HITTEST_ONLABEL;
 815                 }
 816                 else
 817                 {
 818                     *flags = wxBK_HITTEST_ONITEM;
 819                 }
 820             }
 821
 822             return i;
 823         }
 824     }
 825
 826     if ( flags )
 827         *flags = wxBK_HITTEST_NOWHERE;
 828
 829     return wxNOT_FOUND;
 830 }
 831
 832 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 833 {
 834     if (event.IsWindowChange())
 835         AdvanceSelection( event.GetDirection() );
 836     else
 837         event.Skip();
 838 }
 839
 840 #if wxUSE_CONSTRAINTS
 841
 842 // override these 2 functions to do nothing: everything is done in OnSize
 843 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 844 {
 845     // don't set the sizes of the pages - their correct size is not yet known
 846     wxControl::SetConstraintSizes(FALSE);
 847 }
 848
 849 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 850 {
 851     return true;
 852 }
 853
 854 #endif
 855
 856 void wxNotebook::DoApplyWidgetStyle(GtkRcStyle *style)
 857 {
 858     gtk_widget_modify_style(m_widget, style);
 859     size_t cnt = m_pagesData.GetCount();
 860     for (size_t i = 0; i < cnt; i++)
 861         gtk_widget_modify_style(GTK_WIDGET(GetNotebookPage(i)->m_label), style);
 862 }
 863
 864 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 865 {
 866     return ((m_widget->window == window) ||
 867             (NOTEBOOK_PANEL(m_widget) == window));
 868 }
 869
 870 // static
 871 wxVisualAttributes
 872 wxNotebook::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 873 {
 874     return GetDefaultAttributesFromGTKWidget(gtk_notebook_new);
 875 }
 876
 877 //-----------------------------------------------------------------------------
 878 // wxNotebookEvent
 879 //-----------------------------------------------------------------------------
 880
 881 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 882
 883 #endif