src/gtk/notebook.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  11 #pragma implementation "notebook.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #include "wx/notebook.h"
  18
  19 #if wxUSE_NOTEBOOK
  20
  21 #include "wx/panel.h"
  22 #include "wx/utils.h"
  23 #include "wx/imaglist.h"
  24 #include "wx/intl.h"
  25 #include "wx/log.h"
  26 #include "wx/bitmap.h"
  27
  28 #include "wx/gtk/private.h"
  29 #include "wx/gtk/win_gtk.h"
  30
  31 #include <gdk/gdkkeysyms.h>
  32
  33 // ----------------------------------------------------------------------------
  34 // events
  35 // ----------------------------------------------------------------------------
  36
  37 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
  38 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
  39
  40 //-----------------------------------------------------------------------------
  41 // idle system
  42 //-----------------------------------------------------------------------------
  43
  44 extern void wxapp_install_idle_handler();
  45 extern bool g_isIdle;
  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 #include "wx/listimpl.cpp"
  82 WX_DEFINE_LIST(wxGtkNotebookPagesList);
  83
  84 //-----------------------------------------------------------------------------
  85 // "switch_page"
  86 //-----------------------------------------------------------------------------
  87
  88 static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
  89                                               GtkNotebookPage *WXUNUSED(page),
  90                                               gint page,
  91                                               wxNotebook *notebook )
  92 {
  93     // are you trying to call SetSelection() from a notebook event handler?
  94     // you shouldn't!
  95     wxCHECK_RET( !notebook->m_inSwitchPage,
  96                  _T("gtk_notebook_page_change_callback reentered") );
  97
  98     notebook->m_inSwitchPage = TRUE;
  99     if (g_isIdle)
 100         wxapp_install_idle_handler();
 101
 102     int old = notebook->GetSelection();
 103
 104     wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
 105                                    notebook->GetId(), page, old );
 106     eventChanging.SetEventObject( notebook );
 107
 108     if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
 109          !eventChanging.IsAllowed() )
 110     {
 111         /* program doesn't allow the page change */
 112         gtk_signal_emit_stop_by_name( GTK_OBJECT(notebook->m_widget),
 113                                       "switch_page" );
 114     }
 115     else // change allowed
 116     {
 117         // make wxNotebook::GetSelection() return the correct (i.e. consistent
 118         // with wxNotebookEvent::GetSelection()) value even though the page is
 119         // not really changed in GTK+
 120         notebook->m_selection = page;
 121
 122         wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
 123                                       notebook->GetId(), page, old );
 124         eventChanged.SetEventObject( notebook );
 125         notebook->GetEventHandler()->ProcessEvent( eventChanged );
 126     }
 127
 128     notebook->m_inSwitchPage = FALSE;
 129 }
 130
 131 //-----------------------------------------------------------------------------
 132 // "size_allocate"
 133 //-----------------------------------------------------------------------------
 134
 135 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 136 {
 137     if (g_isIdle)
 138         wxapp_install_idle_handler();
 139
 140     if ((win->m_x == alloc->x) &&
 141         (win->m_y == alloc->y) &&
 142         (win->m_width == alloc->width) &&
 143         (win->m_height == alloc->height))
 144     {
 145         return;
 146     }
 147
 148     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 149
 150     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call allocate
 151        here in order to make repositioning after resizing to take effect. */
 152     if ((gtk_major_version == 1) &&
 153         (gtk_minor_version == 2) &&
 154         (gtk_micro_version < 6) &&
 155         (win->m_wxwindow) &&
 156         (GTK_WIDGET_REALIZED(win->m_wxwindow)))
 157     {
 158         gtk_widget_size_allocate( win->m_wxwindow, alloc );
 159     }
 160 }
 161
 162 //-----------------------------------------------------------------------------
 163 // "realize" from m_widget
 164 //-----------------------------------------------------------------------------
 165
 166 static gint
 167 gtk_notebook_realized_callback( GtkWidget * WXUNUSED(widget), wxWindow *win )
 168 {
 169     if (g_isIdle)
 170         wxapp_install_idle_handler();
 171
 172     /* GTK 1.2 up to version 1.2.5 is broken so that we have to call a queue_resize
 173        here in order to make repositioning before showing to take effect. */
 174     gtk_widget_queue_resize( win->m_widget );
 175
 176     return FALSE;
 177 }
 178
 179 //-----------------------------------------------------------------------------
 180 // "key_press_event"
 181 //-----------------------------------------------------------------------------
 182
 183 static gint gtk_notebook_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxNotebook *win )
 184 {
 185     if (g_isIdle)
 186         wxapp_install_idle_handler();
 187
 188     if (!win->m_hasVMT) return FALSE;
 189     if (g_blockEventsOnDrag) return FALSE;
 190
 191     /* win is a control: tab can be propagated up */
 192     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 193     {
 194         int sel = win->GetSelection();
 195         if (sel == -1)
 196             return TRUE;
 197         wxGtkNotebookPage *nb_page = win->GetNotebookPage(sel);
 198         wxCHECK_MSG( nb_page, FALSE, _T("invalid selection in wxNotebook") );
 199
 200         wxNavigationKeyEvent event;
 201         event.SetEventObject( win );
 202         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 203         event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 204         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 205         event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 206         event.SetCurrentFocus( win );
 207
 208         wxNotebookPage *client = win->GetPage(sel);
 209         if ( !client->GetEventHandler()->ProcessEvent( event ) )
 210         {
 211              client->SetFocus();
 212         }
 213
 214         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 215         return TRUE;
 216     }
 217
 218     return FALSE;
 219 }
 220
 221 //-----------------------------------------------------------------------------
 222 // InsertChild callback for wxNotebook
 223 //-----------------------------------------------------------------------------
 224
 225 static void wxInsertChildInNotebook( wxNotebook* WXUNUSED(parent), wxWindow* WXUNUSED(child) )
 226 {
 227     /* we don't do anything here but pray */
 228 }
 229
 230 //-----------------------------------------------------------------------------
 231 // wxNotebook
 232 //-----------------------------------------------------------------------------
 233
 234 IMPLEMENT_DYNAMIC_CLASS(wxNotebook,wxControl)
 235
 236 BEGIN_EVENT_TABLE(wxNotebook, wxControl)
 237     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 238 END_EVENT_TABLE()
 239
 240 void wxNotebook::Init()
 241 {
 242     m_padding = 0;
 243     m_inSwitchPage = FALSE;
 244
 245     m_imageList = (wxImageList *) NULL;
 246     m_selection = -1;
 247     m_themeEnabled = TRUE;
 248 }
 249
 250 wxNotebook::wxNotebook()
 251 {
 252     Init();
 253 }
 254
 255 wxNotebook::wxNotebook( wxWindow *parent, wxWindowID id,
 256       const wxPoint& pos, const wxSize& size,
 257       long style, const wxString& name )
 258 {
 259     Init();
 260     Create( parent, id, pos, size, style, name );
 261 }
 262
 263 wxNotebook::~wxNotebook()
 264 {
 265     DeleteAllPages();
 266 }
 267
 268 bool wxNotebook::Create(wxWindow *parent, wxWindowID id,
 269                         const wxPoint& pos, const wxSize& size,
 270                         long style, const wxString& name )
 271 {
 272     m_needParent = TRUE;
 273     m_acceptsFocus = TRUE;
 274     m_insertCallback = (wxInsertChildFunction)wxInsertChildInNotebook;
 275
 276     if (!PreCreation( parent, pos, size ) ||
 277         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 278     {
 279         wxFAIL_MSG( wxT("wxNoteBook creation failed") );
 280         return FALSE;
 281     }
 282
 283
 284     m_widget = gtk_notebook_new();
 285
 286     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 287
 288     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 289       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 290
 291     m_parent->DoAddChild( this );
 292
 293     if (m_windowStyle & wxNB_RIGHT)
 294         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_RIGHT );
 295     if (m_windowStyle & wxNB_LEFT)
 296         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_LEFT );
 297     if (m_windowStyle & wxNB_BOTTOM)
 298         gtk_notebook_set_tab_pos( GTK_NOTEBOOK(m_widget), GTK_POS_BOTTOM );
 299
 300     gtk_signal_connect( GTK_OBJECT(m_widget), "key_press_event",
 301       GTK_SIGNAL_FUNC(gtk_notebook_key_press_callback), (gpointer)this );
 302
 303     PostCreation();
 304
 305     SetFont( parent->GetFont() );
 306
 307     gtk_signal_connect( GTK_OBJECT(m_widget), "realize",
 308                             GTK_SIGNAL_FUNC(gtk_notebook_realized_callback), (gpointer) this );
 309
 310     Show( TRUE );
 311
 312     return TRUE;
 313 }
 314
 315 int wxNotebook::GetSelection() const
 316 {
 317     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 318
 319     if ( m_selection == -1 )
 320     {
 321         GList *nb_pages = GTK_NOTEBOOK(m_widget)->children;
 322
 323         if (g_list_length(nb_pages) != 0)
 324         {
 325             GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 326
 327             gpointer cur = notebook->cur_page;
 328             if ( cur != NULL )
 329             {
 330                 wxConstCast(this, wxNotebook)->m_selection =
 331                     g_list_index( nb_pages, cur );
 332             }
 333         }
 334     }
 335
 336     return m_selection;
 337 }
 338
 339 wxString wxNotebook::GetPageText( size_t page ) const
 340 {
 341     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid notebook") );
 342
 343     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 344     if (nb_page)
 345         return nb_page->m_text;
 346     else
 347         return wxT("");
 348 }
 349
 350 int wxNotebook::GetPageImage( size_t page ) const
 351 {
 352     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 353
 354     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 355     if (nb_page)
 356         return nb_page->m_image;
 357     else
 358         return -1;
 359 }
 360
 361 wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
 362 {
 363     wxCHECK_MSG( m_widget != NULL, (wxGtkNotebookPage*) NULL, wxT("invalid notebook") );
 364
 365     wxCHECK_MSG( page < (int)m_pagesData.GetCount(), (wxGtkNotebookPage*) NULL, wxT("invalid notebook index") );
 366
 367     return m_pagesData.Item(page)->GetData();
 368 }
 369
 370 int wxNotebook::SetSelection( size_t page )
 371 {
 372     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 373
 374     wxCHECK_MSG( page < m_pagesData.GetCount(), -1, wxT("invalid notebook index") );
 375
 376     int selOld = GetSelection();
 377
 378     // cache the selection
 379     m_selection = page;
 380     gtk_notebook_set_page( GTK_NOTEBOOK(m_widget), page );
 381
 382     wxNotebookPage *client = GetPage(page);
 383     if ( client )
 384         client->SetFocus();
 385
 386     return selOld;
 387 }
 388
 389 bool wxNotebook::SetPageText( size_t page, const wxString &text )
 390 {
 391     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 392
 393     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 394
 395     wxCHECK_MSG( nb_page, FALSE, wxT("SetPageText: invalid page index") );
 396
 397     nb_page->m_text = text;
 398
 399     gtk_label_set( nb_page->m_label, wxGTK_CONV( nb_page->m_text ) );
 400
 401     return TRUE;
 402 }
 403
 404 bool wxNotebook::SetPageImage( size_t page, int image )
 405 {
 406     /* HvdH 28-12-98: now it works, but it's a bit of a kludge */
 407
 408     wxGtkNotebookPage* nb_page = GetNotebookPage(page);
 409
 410     if (!nb_page) return FALSE;
 411
 412     /* Optimization posibility: return immediately if image unchanged.
 413      * Not enabled because it may break existing (stupid) code that
 414      * manipulates the imagelist to cycle images */
 415
 416     /* if (image == nb_page->m_image) return TRUE; */
 417
 418     /* For different cases:
 419        1) no image -> no image
 420        2) image -> no image
 421        3) no image -> image
 422        4) image -> image */
 423
 424     if (image == -1 && nb_page->m_image == -1)
 425         return TRUE; /* Case 1): Nothing to do. */
 426
 427     GtkWidget *pixmapwid = (GtkWidget*) NULL;
 428
 429     if (nb_page->m_image != -1)
 430     {
 431         /* Case 2) or 4). There is already an image in the gtkhbox. Let's find it */
 432
 433         GList *child = gtk_container_children(GTK_CONTAINER(nb_page->m_box));
 434         while (child)
 435         {
 436             if (GTK_IS_PIXMAP(child->data))
 437             {
 438                 pixmapwid = GTK_WIDGET(child->data);
 439                 break;
 440             }
 441             child = child->next;
 442         }
 443
 444         /* We should have the pixmap widget now */
 445         wxASSERT(pixmapwid != NULL);
 446
 447         if (image == -1)
 448         {
 449             /* If there's no new widget, just remove the old from the box */
 450             gtk_container_remove(GTK_CONTAINER(nb_page->m_box), pixmapwid);
 451             nb_page->m_image = -1;
 452
 453             return TRUE; /* Case 2) */
 454         }
 455     }
 456
 457     /* Only cases 3) and 4) left */
 458     wxASSERT( m_imageList != NULL ); /* Just in case */
 459
 460     /* Construct the new pixmap */
 461     const wxBitmap *bmp = m_imageList->GetBitmap(image);
 462     GdkPixmap *pixmap = bmp->GetPixmap();
 463     GdkBitmap *mask = (GdkBitmap*) NULL;
 464     if ( bmp->GetMask() )
 465     {
 466         mask = bmp->GetMask()->GetBitmap();
 467     }
 468
 469     if (pixmapwid == NULL)
 470     {
 471         /* Case 3) No old pixmap. Create a new one and prepend it to the hbox */
 472         pixmapwid = gtk_pixmap_new (pixmap, mask );
 473
 474         /* CHECKME: Are these pack flags okay? */
 475         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 476         gtk_widget_show(pixmapwid);
 477     }
 478     else
 479     {
 480         /* Case 4) Simply replace the pixmap */
 481         gtk_pixmap_set(GTK_PIXMAP(pixmapwid), pixmap, mask);
 482     }
 483
 484     nb_page->m_image = image;
 485
 486     return TRUE;
 487 }
 488
 489 void wxNotebook::SetPageSize( const wxSize &WXUNUSED(size) )
 490 {
 491     wxFAIL_MSG( wxT("wxNotebook::SetPageSize not implemented") );
 492 }
 493
 494 void wxNotebook::SetPadding( const wxSize &padding )
 495 {
 496     wxCHECK_RET( m_widget != NULL, wxT("invalid notebook") );
 497
 498     m_padding = padding.GetWidth();
 499
 500     int i;
 501     for (i=0; i<int(GetPageCount()); i++)
 502     {
 503         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 504         wxASSERT(nb_page != NULL);
 505
 506         if (nb_page->m_image != -1)
 507         {
 508             // gtk_box_set_child_packing sets padding on BOTH sides
 509             // icon provides left padding, label provides center and right
 510             int image = nb_page->m_image;
 511             SetPageImage(i,-1);
 512             SetPageImage(i,image);
 513         }
 514         wxASSERT(nb_page->m_label);
 515         gtk_box_set_child_packing(GTK_BOX(nb_page->m_box),
 516                                   GTK_WIDGET(nb_page->m_label),
 517                                   FALSE, FALSE, m_padding, GTK_PACK_END);
 518     }
 519 }
 520
 521 void wxNotebook::SetTabSize(const wxSize& WXUNUSED(sz))
 522 {
 523     wxFAIL_MSG( wxT("wxNotebook::SetTabSize not implemented") );
 524 }
 525
 526 bool wxNotebook::DeleteAllPages()
 527 {
 528     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 529
 530     while (m_pagesData.GetCount() > 0)
 531         DeletePage( m_pagesData.GetCount()-1 );
 532
 533     wxASSERT_MSG( GetPageCount() == 0, _T("all pages must have been deleted") );
 534
 535     return wxNotebookBase::DeleteAllPages();
 536 }
 537
 538 bool wxNotebook::DeletePage( size_t page )
 539 {
 540     if ( m_selection == (int)m_pagesData.GetCount() - 1 )
 541     {
 542         // the index will become invalid after the page is deleted
 543         m_selection = -1;
 544     }
 545
 546     // it will call our DoRemovePage() to do the real work
 547     return wxNotebookBase::DeletePage(page);
 548 }
 549
 550 wxNotebookPage *wxNotebook::DoRemovePage( size_t page )
 551 {
 552     wxNotebookPage *client = wxNotebookBase::DoRemovePage(page);
 553     if ( !client )
 554         return NULL;
 555
 556     gtk_widget_ref( client->m_widget );
 557     gtk_widget_unrealize( client->m_widget );
 558     gtk_widget_unparent( client->m_widget );
 559
 560     // gtk_notebook_remove_page() sends "switch_page" signal with some strange
 561     // new page index (when deleting selected page 0, new page is 1 although,
 562     // clearly, the selection should stay 0), so suppress this
 563     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 564       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 565
 566     gtk_notebook_remove_page( GTK_NOTEBOOK(m_widget), page );
 567
 568     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 569       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 570
 571     wxGtkNotebookPage* p = GetNotebookPage(page);
 572     m_pagesData.DeleteObject(p);
 573     delete p;
 574
 575     return client;
 576 }
 577
 578 bool wxNotebook::InsertPage( size_t position,
 579                              wxNotebookPage* win,
 580                              const wxString& text,
 581                              bool select,
 582                              int imageId )
 583 {
 584     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid notebook") );
 585
 586     wxCHECK_MSG( win->GetParent() == this, FALSE,
 587                wxT("Can't add a page whose parent is not the notebook!") );
 588
 589     wxCHECK_MSG( position <= GetPageCount(), FALSE,
 590                  _T("invalid page index in wxNotebookPage::InsertPage()") );
 591
 592     /* don't receive switch page during addition */
 593     gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
 594       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer) this );
 595
 596     if (m_themeEnabled)
 597         win->SetThemeEnabled(TRUE);
 598
 599     GtkNotebook *notebook = GTK_NOTEBOOK(m_widget);
 600
 601     wxGtkNotebookPage *nb_page = new wxGtkNotebookPage();
 602
 603     if ( position == GetPageCount() )
 604         m_pagesData.Append( nb_page );
 605     else
 606         m_pagesData.Insert( m_pagesData.Item( position ), nb_page );
 607
 608     m_pages.Insert(win, position);
 609
 610     nb_page->m_box = gtk_hbox_new( FALSE, 1 );
 611     gtk_container_border_width( GTK_CONTAINER(nb_page->m_box), 2 );
 612
 613     gtk_signal_connect( GTK_OBJECT(win->m_widget), "size_allocate",
 614       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)win );
 615
 616 #ifndef __VMS
 617    // On VMS position is unsigned and thus always positive
 618    if (position < 0)
 619         gtk_notebook_append_page( notebook, win->m_widget, nb_page->m_box );
 620     else
 621 #endif
 622      gtk_notebook_insert_page( notebook, win->m_widget, nb_page->m_box, position );
 623
 624     nb_page->m_page = (GtkNotebookPage*) g_list_last(notebook->children)->data;
 625
 626     /* set the label image */
 627     nb_page->m_image = imageId;
 628
 629     if (imageId != -1)
 630     {
 631         wxASSERT( m_imageList != NULL );
 632
 633         const wxBitmap *bmp = m_imageList->GetBitmap(imageId);
 634         GdkPixmap *pixmap = bmp->GetPixmap();
 635         GdkBitmap *mask = (GdkBitmap*) NULL;
 636         if ( bmp->GetMask() )
 637         {
 638             mask = bmp->GetMask()->GetBitmap();
 639         }
 640
 641         GtkWidget *pixmapwid = gtk_pixmap_new (pixmap, mask );
 642
 643         gtk_box_pack_start(GTK_BOX(nb_page->m_box), pixmapwid, FALSE, FALSE, m_padding);
 644
 645         gtk_widget_show(pixmapwid);
 646     }
 647
 648     /* set the label text */
 649     nb_page->m_text = text;
 650     if (nb_page->m_text.IsEmpty()) nb_page->m_text = wxT("");
 651
 652     nb_page->m_label = GTK_LABEL( gtk_label_new(wxGTK_CONV(nb_page->m_text)) );
 653     gtk_box_pack_end( GTK_BOX(nb_page->m_box), GTK_WIDGET(nb_page->m_label), FALSE, FALSE, m_padding );
 654
 655     /* show the label */
 656     gtk_widget_show( GTK_WIDGET(nb_page->m_label) );
 657     if (select && (m_pagesData.GetCount() > 1))
 658     {
 659 #ifndef __VMS
 660    // On VMS position is unsigned and thus always positive
 661         if (position < 0)
 662             SetSelection( GetPageCount()-1 );
 663         else
 664 #endif
 665             SetSelection( position );
 666     }
 667
 668     gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
 669       GTK_SIGNAL_FUNC(gtk_notebook_page_change_callback), (gpointer)this );
 670
 671     return TRUE;
 672 }
 673
 674 // helper for HitTest(): check if the point lies inside the given widget which
 675 // is the child of the notebook whose position and border size are passed as
 676 // parameters
 677 static bool
 678 IsPointInsideWidget(const wxPoint& pt, GtkWidget *w,
 679                     gint x, gint y, gint border = 0)
 680 {
 681     return
 682         (pt.x >= w->allocation.x - x - border) &&
 683         (pt.x <= w->allocation.x - x + border + w->allocation.width) &&
 684         (pt.y >= w->allocation.y - y - border) &&
 685         (pt.y <= w->allocation.y - y + border + w->allocation.height);
 686 }
 687
 688 int wxNotebook::HitTest(const wxPoint& pt, long *flags) const
 689 {
 690     const gint x = m_widget->allocation.x;
 691     const gint y = m_widget->allocation.y;
 692
 693     const size_t count = GetPageCount();
 694     for ( size_t i = 0; i < count; i++ )
 695     {
 696         wxGtkNotebookPage* nb_page = GetNotebookPage(i);
 697         GtkWidget *box = nb_page->m_box;
 698
 699         // VZ: don't know how to find the border width in GTK+ 1.2
 700 #ifdef __WXGTK20__
 701         const gint border = gtk_container_get_border_width(GTK_CONTAINER(box));
 702 #else // !GTK+ 2.x
 703         const gint border = 0;
 704 #endif
 705         if ( IsPointInsideWidget(pt, box, x, y, border) )
 706         {
 707             // ok, we're inside this tab -- now find out where, if needed
 708             if ( flags )
 709             {
 710                 GtkWidget *pixmap = NULL;
 711
 712                 GList *children = gtk_container_children(GTK_CONTAINER(box));
 713                 for ( GList *child = children; child; child = child->next )
 714                 {
 715                     if ( GTK_IS_PIXMAP(child->data) )
 716                     {
 717                         pixmap = GTK_WIDGET(child->data);
 718                         break;
 719                     }
 720                 }
 721
 722                 if ( children )
 723                     g_list_free(children);
 724
 725                 if ( pixmap && IsPointInsideWidget(pt, pixmap, x, y) )
 726                 {
 727                     *flags = wxNB_HITTEST_ONICON;
 728                 }
 729                 else if ( IsPointInsideWidget(pt, GTK_WIDGET(nb_page->m_label), x, y) )
 730                 {
 731                     *flags = wxNB_HITTEST_ONLABEL;
 732                 }
 733                 else
 734                 {
 735                     *flags = wxNB_HITTEST_ONITEM;
 736                 }
 737             }
 738
 739             return i;
 740         }
 741     }
 742
 743     if ( flags )
 744         *flags = wxNB_HITTEST_NOWHERE;
 745
 746     return wxNOT_FOUND;
 747 }
 748
 749 void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
 750 {
 751     if (event.IsWindowChange())
 752         AdvanceSelection( event.GetDirection() );
 753     else
 754         event.Skip();
 755 }
 756
 757 #if wxUSE_CONSTRAINTS
 758
 759 // override these 2 functions to do nothing: everything is done in OnSize
 760 void wxNotebook::SetConstraintSizes( bool WXUNUSED(recurse) )
 761 {
 762     // don't set the sizes of the pages - their correct size is not yet known
 763     wxControl::SetConstraintSizes(FALSE);
 764 }
 765
 766 bool wxNotebook::DoPhase( int WXUNUSED(nPhase) )
 767 {
 768     return TRUE;
 769 }
 770
 771 #endif
 772
 773 void wxNotebook::ApplyWidgetStyle()
 774 {
 775     // TODO, font for labels etc
 776
 777     SetWidgetStyle();
 778     gtk_widget_set_style( m_widget, m_widgetStyle );
 779 }
 780
 781 bool wxNotebook::IsOwnGtkWindow( GdkWindow *window )
 782 {
 783     return ((m_widget->window == window) ||
 784             (NOTEBOOK_PANEL(m_widget) == window));
 785 }
 786
 787 //-----------------------------------------------------------------------------
 788 // wxNotebookEvent
 789 //-----------------------------------------------------------------------------
 790
 791 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 792
 793 #endif