src/gtk/frame.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        frame.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11     #pragma implementation "frame.h"
  12 #endif
  13
  14 #include "wx/frame.h"
  15 #include "wx/dialog.h"
  16 #include "wx/control.h"
  17 #include "wx/app.h"
  18 #include "wx/menu.h"
  19 #include "wx/toolbar.h"
  20 #include "wx/statusbr.h"
  21 #include "wx/dcclient.h"
  22
  23 #include "glib.h"
  24 #include "gdk/gdk.h"
  25 #include "gtk/gtk.h"
  26 #include "wx/gtk/win_gtk.h"
  27
  28 //-----------------------------------------------------------------------------
  29 // constants
  30 //-----------------------------------------------------------------------------
  31
  32 const int wxMENU_HEIGHT    = 27;
  33 const int wxSTATUS_HEIGHT  = 25;
  34
  35 //-----------------------------------------------------------------------------
  36 // data
  37 //-----------------------------------------------------------------------------
  38
  39 extern wxList wxTopLevelWindows;
  40 extern wxList wxPendingDelete;
  41
  42 //-----------------------------------------------------------------------------
  43 // "size_allocate"
  44 //-----------------------------------------------------------------------------
  45
  46 static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxFrame *win )
  47 {
  48     if (!win->HasVMT()) return;
  49
  50 /*
  51     printf( "OnFrameResize from " );
  52     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  53         printf( win->GetClassInfo()->GetClassName() );
  54     printf( ".\n" );
  55 */
  56
  57    if ((win->m_width != alloc->width) || (win->m_height != alloc->height))
  58    {
  59        win->m_sizeSet = FALSE;
  60        win->m_width = alloc->width;
  61        win->m_height = alloc->height;
  62    }
  63 }
  64
  65 //-----------------------------------------------------------------------------
  66 // "delete_event"
  67 //-----------------------------------------------------------------------------
  68
  69 static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxFrame *win )
  70 {
  71 /*
  72     printf( "OnDelete from " );
  73     if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
  74         printf( win->GetClassInfo()->GetClassName() );
  75     printf( ".\n" );
  76 */
  77
  78     win->Close();
  79
  80     return TRUE;
  81 }
  82
  83 //-----------------------------------------------------------------------------
  84 // "configure_event"
  85 //-----------------------------------------------------------------------------
  86
  87 static gint gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *event, wxFrame *win )
  88 {
  89     if (!win->HasVMT()) return FALSE;
  90
  91     win->m_x = event->x;
  92     win->m_y = event->y;
  93
  94     wxMoveEvent mevent( wxPoint(win->m_x,win->m_y), win->GetId() );
  95     mevent.SetEventObject( win );
  96     win->GetEventHandler()->ProcessEvent( mevent );
  97
  98     return FALSE;
  99 }
 100
 101 //-----------------------------------------------------------------------------
 102 // wxFrame
 103 //-----------------------------------------------------------------------------
 104
 105 BEGIN_EVENT_TABLE(wxFrame, wxWindow)
 106     EVT_SIZE(wxFrame::OnSize)
 107     EVT_CLOSE(wxFrame::OnCloseWindow)
 108     EVT_MENU_HIGHLIGHT_ALL(wxFrame::OnMenuHighlight)
 109 END_EVENT_TABLE()
 110
 111 IMPLEMENT_DYNAMIC_CLASS(wxFrame,wxWindow)
 112
 113 wxFrame::wxFrame()
 114 {
 115     m_frameMenuBar = (wxMenuBar *) NULL;
 116     m_mdiMenuBar = (wxMenuBar *) NULL;
 117     m_frameStatusBar = (wxStatusBar *) NULL;
 118     m_frameToolBar = (wxToolBar *) NULL;
 119     m_sizeSet = FALSE;
 120     m_miniEdge = 0;
 121     m_miniTitle = 0;
 122 }
 123
 124 wxFrame::wxFrame( wxWindow *parent, wxWindowID id, const wxString &title,
 125       const wxPoint &pos, const wxSize &size,
 126       long style, const wxString &name )
 127 {
 128     m_frameMenuBar = (wxMenuBar *) NULL;
 129     m_mdiMenuBar = (wxMenuBar *) NULL;
 130     m_frameStatusBar = (wxStatusBar *) NULL;
 131     m_frameToolBar = (wxToolBar *) NULL;
 132     m_sizeSet = FALSE;
 133     m_miniEdge = 0;
 134     m_miniTitle = 0;
 135     Create( parent, id, title, pos, size, style, name );
 136 }
 137
 138 bool wxFrame::Create( wxWindow *parent, wxWindowID id, const wxString &title,
 139       const wxPoint &pos, const wxSize &size,
 140       long style, const wxString &name )
 141 {
 142     wxTopLevelWindows.Append( this );
 143
 144     m_needParent = FALSE;
 145
 146     PreCreation( parent, id, pos, size, style, name );
 147
 148     m_title = title;
 149
 150     GtkWindowType win_type = GTK_WINDOW_TOPLEVEL;
 151     if (style & wxSIMPLE_BORDER) win_type = GTK_WINDOW_POPUP;
 152
 153     m_widget = gtk_window_new( win_type );
 154
 155     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 156     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 157
 158     gtk_window_set_policy( GTK_WINDOW(m_widget), 1, 1, 0 );
 159
 160     gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
 161         GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this );
 162
 163     m_wxwindow = gtk_myfixed_new();
 164     gtk_widget_show( m_wxwindow );
 165     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 166
 167     gtk_container_add( GTK_CONTAINER(m_widget), m_wxwindow );
 168
 169     if (m_parent) m_parent->AddChild( this );
 170
 171     PostCreation();
 172
 173     gtk_widget_realize( m_widget );
 174
 175     gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
 176         GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this );
 177
 178     gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event",
 179         GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this );
 180
 181     return TRUE;
 182 }
 183
 184 wxFrame::~wxFrame()
 185 {
 186     if (m_frameMenuBar) delete m_frameMenuBar;
 187     m_frameMenuBar = (wxMenuBar *) NULL;
 188
 189     if (m_frameStatusBar) delete m_frameStatusBar;
 190     m_frameStatusBar = (wxStatusBar *) NULL;
 191
 192     if (m_frameToolBar) delete m_frameToolBar;
 193     m_frameToolBar = (wxToolBar *) NULL;
 194
 195     wxTopLevelWindows.DeleteObject( this );
 196
 197     if (wxTheApp->GetTopWindow() == this)
 198     {
 199         wxTheApp->SetTopWindow( (wxWindow*) NULL );
 200     }
 201
 202     if (wxTopLevelWindows.Number() == 0)
 203     {
 204         wxTheApp->ExitMainLoop();
 205     }
 206 }
 207
 208 bool wxFrame::Show( bool show )
 209 {
 210     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 211
 212     if (show && !m_sizeSet)
 213     {
 214         /* by calling GtkOnSize here, we don't have to call
 215            either after showing the frame, which would entail
 216            much ugly flicker nor from within the size_allocate
 217            handler, because GTK 1.1.X forbids that. */
 218
 219         GtkOnSize( m_x, m_y, m_width, m_height );
 220     }
 221
 222     return wxWindow::Show( show );
 223 }
 224
 225 bool wxFrame::Destroy()
 226 {
 227     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 228
 229     if (!wxPendingDelete.Member(this)) wxPendingDelete.Append(this);
 230
 231     return TRUE;
 232 }
 233
 234 wxPoint wxFrame::GetClientAreaOrigin() const
 235 {
 236     wxPoint pt( m_miniEdge, m_miniEdge + m_miniTitle );
 237     if (m_frameMenuBar)
 238     {
 239         int h = 0;
 240         m_frameMenuBar->GetSize( (int*)NULL, &h );
 241         pt.y += h;
 242     }
 243     if (m_frameToolBar)
 244     {
 245         int h = 0;
 246         m_frameToolBar->GetSize( (int*)NULL, &h );
 247         pt.y += h;
 248     }
 249     return pt;
 250 }
 251
 252 void wxFrame::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 253 {
 254     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 255
 256     /* don't do anything for children of wxMDIChildFrame */
 257     if (!m_wxwindow) return;
 258
 259     if (m_resizing) return; // I don't like recursions
 260     m_resizing = TRUE;
 261
 262     int old_x = m_x;
 263     int old_y = m_y;
 264     int old_width = m_width;
 265     int old_height = m_height;
 266
 267     if ((sizeFlags & wxSIZE_USE_EXISTING) == wxSIZE_USE_EXISTING)
 268     {
 269         if (x != -1) m_x = x;
 270         if (y != -1) m_y = y;
 271         if (width != -1) m_width = width;
 272         if (height != -1) m_height = height;
 273     }
 274     else
 275     {
 276         m_x = x;
 277         m_y = y;
 278         m_width = width;
 279         m_height = height;
 280     }
 281
 282     if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH)
 283     {
 284         if (width == -1) m_width = 80;
 285     }
 286
 287     if ((sizeFlags & wxSIZE_AUTO_HEIGHT) == wxSIZE_AUTO_HEIGHT)
 288     {
 289        if (height == -1) m_height = 26;
 290     }
 291
 292     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 293     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 294     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
 295     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
 296
 297     if ((m_x != -1) || (m_y != -1))
 298     {
 299         if ((m_x != old_x) || (m_y != old_y))
 300         {
 301             /* m_sizeSet = FALSE; */
 302             gtk_widget_set_uposition( m_widget, m_x, m_y );
 303         }
 304     }
 305
 306     if ((m_width != old_width) || (m_height != old_height))
 307     {
 308         /* we set the size in GtkOnSize */
 309         m_sizeSet = FALSE;
 310     }
 311
 312     m_resizing = FALSE;
 313 }
 314
 315 void wxFrame::Centre( int direction )
 316 {
 317     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 318
 319     int x = 0;
 320     int y = 0;
 321
 322     if ((direction & wxHORIZONTAL) == wxHORIZONTAL) x = (gdk_screen_width () - m_width) / 2;
 323     if ((direction & wxVERTICAL) == wxVERTICAL) y = (gdk_screen_height () - m_height) / 2;
 324
 325     Move( x, y );
 326 }
 327
 328 void wxFrame::GetClientSize( int *width, int *height ) const
 329 {
 330     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 331
 332     wxWindow::GetClientSize( width, height );
 333     if (height)
 334     {
 335         if (m_frameMenuBar) (*height) -= wxMENU_HEIGHT;
 336         if (m_frameStatusBar) (*height) -= wxSTATUS_HEIGHT;
 337         if (m_frameToolBar)
 338         {
 339             int y = 0;
 340             m_frameToolBar->GetSize( (int *) NULL, &y );
 341             (*height) -= y;
 342         }
 343         (*height) -= m_miniEdge*2 + m_miniTitle;
 344     }
 345     if (width)
 346     {
 347         (*width) -= m_miniEdge*2;
 348     }
 349 }
 350
 351 void wxFrame::DoSetClientSize( int width, int height )
 352 {
 353     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 354
 355     int h = height;
 356     if (m_frameMenuBar) h += wxMENU_HEIGHT;
 357     if (m_frameStatusBar) h += wxSTATUS_HEIGHT;
 358     if (m_frameToolBar)
 359     {
 360         int y = 0;
 361         m_frameToolBar->GetSize( (int *) NULL, &y );
 362         h += y;
 363     }
 364     wxWindow::DoSetClientSize( width + m_miniEdge*2, h  + m_miniEdge*2 + m_miniTitle );
 365 }
 366
 367 void wxFrame::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), int width, int height )
 368 {
 369     // due to a bug in gtk, x,y are always 0
 370     // m_x = x;
 371     // m_y = y;
 372
 373     if (m_resizing) return;
 374     m_resizing = TRUE;
 375
 376     if (!m_wxwindow) return;
 377
 378     m_width = width;
 379     m_height = height;
 380
 381     /* check if size is in legal range */
 382     if ((m_minWidth != -1) && (m_width < m_minWidth)) m_width = m_minWidth;
 383     if ((m_minHeight != -1) && (m_height < m_minHeight)) m_height = m_minHeight;
 384     if ((m_maxWidth != -1) && (m_width > m_maxWidth)) m_width = m_maxWidth;
 385     if ((m_maxHeight != -1) && (m_height > m_maxHeight)) m_height = m_maxHeight;
 386
 387     /* this emulates the new wxMSW behaviour of placing all
 388      * frame-subwindows (menu, toolbar..) on one native window
 389      * this hurts in the eye, but I don't want to call SetSize()
 390      * because I don't want to call any non-native functions here. */
 391
 392     if (m_frameMenuBar)
 393     {
 394         int xx = m_miniEdge;
 395         int yy = m_miniEdge + m_miniTitle;
 396         int ww = m_width  - 2*m_miniEdge;
 397         int hh = wxMENU_HEIGHT;
 398         m_frameMenuBar->m_x = xx;
 399         m_frameMenuBar->m_y = yy;
 400         m_frameMenuBar->m_width = ww;
 401         m_frameMenuBar->m_height = hh;
 402
 403         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameMenuBar->m_widget, xx, yy );
 404         gtk_widget_set_usize( m_frameMenuBar->m_widget, ww, hh );
 405     }
 406
 407     if (m_frameToolBar)
 408     {
 409         int xx = m_miniEdge;
 410         int yy = m_miniEdge + m_miniTitle;
 411         if ((m_frameMenuBar) || (m_mdiMenuBar)) yy += wxMENU_HEIGHT;
 412         int ww = m_width - 2*m_miniEdge;
 413         int hh = m_frameToolBar->m_height;
 414
 415         m_frameToolBar->m_x = xx;
 416         m_frameToolBar->m_y = yy;
 417         m_frameToolBar->m_height = hh;
 418         m_frameToolBar->m_width = ww;
 419
 420         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameToolBar->m_widget, xx, yy );
 421         gtk_widget_set_usize( m_frameToolBar->m_widget, ww, hh );
 422     }
 423
 424     if (m_frameStatusBar)
 425     {
 426         int xx = 0 + m_miniEdge;
 427         int yy = m_height - wxSTATUS_HEIGHT - m_miniEdge;
 428         int ww = m_width - 2*m_miniEdge;
 429         int hh = wxSTATUS_HEIGHT;
 430
 431         m_frameStatusBar->m_x = xx;
 432         m_frameStatusBar->m_y = yy;
 433         m_frameStatusBar->m_width = ww;
 434         m_frameStatusBar->m_height = hh;
 435
 436         gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_frameStatusBar->m_widget, xx, yy );
 437         gtk_widget_set_usize( m_frameStatusBar->m_widget, ww, hh );
 438     }
 439
 440     /* we actually set the size of a frame here and no-where else */
 441     gtk_widget_set_usize( m_widget, m_width, m_height );
 442
 443     m_sizeSet = TRUE;
 444
 445     /* send size event to frame */
 446     wxSizeEvent event( wxSize(m_width,m_height), GetId() );
 447     event.SetEventObject( this );
 448     GetEventHandler()->ProcessEvent( event );
 449
 450     /* send size event to status bar */
 451     if (m_frameStatusBar)
 452     {
 453         wxSizeEvent event2( wxSize(m_frameStatusBar->m_width,m_frameStatusBar->m_height), m_frameStatusBar->GetId() );
 454         event2.SetEventObject( m_frameStatusBar );
 455         m_frameStatusBar->GetEventHandler()->ProcessEvent( event2 );
 456     }
 457
 458     m_resizing = FALSE;
 459 }
 460
 461 void wxFrame::OnInternalIdle()
 462 {
 463     if (!m_sizeSet)
 464         GtkOnSize( m_x, m_y, m_width, m_height );
 465
 466     DoMenuUpdates();
 467 }
 468
 469 void wxFrame::OnCloseWindow( wxCloseEvent& event )
 470 {
 471     // close the window if it wasn't vetoed by the application
 472 //    if ( !event.GetVeto() ) // No, this isn't the interpretation of GetVeto.
 473     Destroy();
 474 }
 475
 476 void wxFrame::OnSize( wxSizeEvent &WXUNUSED(event) )
 477 {
 478     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 479
 480     if (GetAutoLayout())
 481     {
 482         Layout();
 483     }
 484     else
 485     {
 486         // do we have exactly one child?
 487         wxWindow *child = (wxWindow *)NULL;
 488         for ( wxNode *node = GetChildren().First(); node; node = node->Next() )
 489         {
 490             wxWindow *win = (wxWindow *)node->Data();
 491             if ( !wxIS_KIND_OF(win,wxFrame) && !wxIS_KIND_OF(win,wxDialog) )
 492             {
 493                 if ( child )
 494                 {
 495                     // it's the second one: do nothing
 496                     return;
 497                 }
 498
 499                 child = win;
 500             }
 501         }
 502
 503         // no children at all?
 504         if ( child )
 505         {
 506             // yes: set it's size to fill all the frame
 507             int client_x, client_y;
 508             GetClientSize( &client_x, &client_y );
 509             child->SetSize( 1, 1, client_x-2, client_y-2 );
 510         }
 511     }
 512 }
 513
 514 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 515 {
 516     menu->SetInvokingWindow( win );
 517     wxNode *node = menu->m_items.First();
 518     while (node)
 519     {
 520         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 521         if (menuitem->IsSubMenu())
 522             SetInvokingWindow( menuitem->GetSubMenu(), win );
 523         node = node->Next();
 524     }
 525 }
 526
 527 void wxFrame::SetMenuBar( wxMenuBar *menuBar )
 528 {
 529     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 530     wxASSERT_MSG( (m_wxwindow != NULL), "invalid frame" );
 531
 532     m_frameMenuBar = menuBar;
 533
 534     if (m_frameMenuBar)
 535     {
 536         wxNode *node = m_frameMenuBar->m_menus.First();
 537         while (node)
 538         {
 539             wxMenu *menu = (wxMenu*)node->Data();
 540             SetInvokingWindow( menu, this );
 541             node = node->Next();
 542         }
 543
 544         if (m_frameMenuBar->m_parent != this)
 545         {
 546             m_frameMenuBar->m_parent = this;
 547             gtk_myfixed_put( GTK_MYFIXED(m_wxwindow),
 548                 m_frameMenuBar->m_widget, m_frameMenuBar->m_x, m_frameMenuBar->m_y );
 549
 550             /* an mdi child menu bar might be underneath */
 551             if (m_mdiMenuBar) m_frameMenuBar->Show( FALSE );
 552         }
 553     }
 554
 555     m_sizeSet = FALSE;
 556 }
 557
 558 wxMenuBar *wxFrame::GetMenuBar() const
 559 {
 560     return m_frameMenuBar;
 561 }
 562
 563 void wxFrame::OnMenuHighlight(wxMenuEvent& event)
 564 {
 565     if (GetStatusBar())
 566     {
 567         // if no help string found, we will clear the status bar text
 568         wxString helpString;
 569
 570         int menuId = event.GetMenuId();
 571         if ( menuId != -1 )
 572         {
 573             wxMenuBar *menuBar = GetMenuBar();
 574             if (menuBar)
 575             {
 576                 helpString = menuBar->GetHelpString(menuId);
 577             }
 578         }
 579
 580         SetStatusText(helpString);
 581     }
 582 }
 583
 584 wxToolBar* wxFrame::CreateToolBar(long style, wxWindowID id, const wxString& name)
 585 {
 586     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 587
 588     wxCHECK_MSG( m_frameToolBar == NULL, FALSE, "recreating toolbar in wxFrame" );
 589
 590     m_frameToolBar = OnCreateToolBar( style, id, name );
 591
 592     GetChildren().DeleteObject( m_frameToolBar );
 593
 594     m_sizeSet = FALSE;
 595
 596     return m_frameToolBar;
 597 }
 598
 599 wxToolBar* wxFrame::OnCreateToolBar( long style, wxWindowID id, const wxString& name )
 600 {
 601     return new wxToolBar( this, id, wxDefaultPosition, wxDefaultSize, style, name );
 602 }
 603
 604 wxToolBar *wxFrame::GetToolBar() const
 605 {
 606     return m_frameToolBar;
 607 }
 608
 609 wxStatusBar* wxFrame::CreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 610 {
 611     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 612
 613     wxCHECK_MSG( m_frameStatusBar == NULL, FALSE, "recreating status bar in wxFrame" );
 614
 615     m_frameStatusBar = OnCreateStatusBar( number, style, id, name );
 616
 617     m_sizeSet = FALSE;
 618
 619     return m_frameStatusBar;
 620 }
 621
 622 wxStatusBar *wxFrame::OnCreateStatusBar( int number, long style, wxWindowID id, const wxString& name )
 623 {
 624     wxStatusBar *statusBar = (wxStatusBar *) NULL;
 625
 626     statusBar = new wxStatusBar(this, id, wxPoint(0, 0), wxSize(100, 20), style, name);
 627
 628     // Set the height according to the font and the border size
 629     wxClientDC dc(statusBar);
 630     dc.SetFont( statusBar->GetFont() );
 631
 632     long x, y;
 633     dc.GetTextExtent( "X", &x, &y );
 634
 635     int height = (int)( (y  * 1.1) + 2* statusBar->GetBorderY());
 636
 637     statusBar->SetSize( -1, -1, 100, height );
 638
 639     statusBar->SetFieldsCount( number );
 640     return statusBar;
 641 }
 642
 643 void wxFrame::SetStatusText(const wxString& text, int number)
 644 {
 645     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 646
 647     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set text for" );
 648
 649     m_frameStatusBar->SetStatusText(text, number);
 650 }
 651
 652 void wxFrame::SetStatusWidths(int n, const int widths_field[] )
 653 {
 654     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 655
 656     wxCHECK_RET( m_frameStatusBar != NULL, "no statusbar to set widths for" );
 657
 658     m_frameStatusBar->SetStatusWidths(n, widths_field);
 659 }
 660
 661 wxStatusBar *wxFrame::GetStatusBar() const
 662 {
 663     return m_frameStatusBar;
 664 }
 665
 666 void wxFrame::SetTitle( const wxString &title )
 667 {
 668     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 669
 670     m_title = title;
 671     if (m_title.IsNull()) m_title = "";
 672     gtk_window_set_title( GTK_WINDOW(m_widget), title );
 673 }
 674
 675 void wxFrame::SetIcon( const wxIcon &icon )
 676 {
 677     wxASSERT_MSG( (m_widget != NULL), "invalid frame" );
 678
 679     m_icon = icon;
 680     if (!icon.Ok()) return;
 681
 682     wxMask *mask = icon.GetMask();
 683     GdkBitmap *bm = (GdkBitmap *) NULL;
 684     if (mask) bm = mask->GetBitmap();
 685
 686     gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm );
 687 }
 688