bool wxApp::OnInitGui()
{
if ( !wxAppBase::OnInitGui() )
return false;
#ifndef __WXGTK3__
// if this is a wxGLApp (derived from wxApp), and we've already
// chosen a specific visual, then derive the GdkVisual from that
if ( GetXVisualInfo() )
{
GdkVisual* vis = gtk_widget_get_default_visual();
GdkColormap *colormap = gdk_colormap_new( vis, FALSE );
gtk_widget_set_default_colormap( colormap );
}
else
{
// On some machines, the default visual is just 256 colours, so
// we make sure we get the best. This can sometimes be wasteful.
if (m_useBestVisual)
{
if (m_forceTrueColour)
{
GdkVisual* visual = gdk_visual_get_best_with_both( 24, GDK_VISUAL_TRUE_COLOR );
if (!visual)
{
wxLogError(wxT("Unable to initialize TrueColor visual."));
return false;
}
GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
gtk_widget_set_default_colormap( colormap );
}
else
{
if (gdk_visual_get_best() != gdk_visual_get_system())
{
GdkVisual* visual = gdk_visual_get_best();
GdkColormap *colormap = gdk_colormap_new( visual, FALSE );
gtk_widget_set_default_colormap( colormap );
}
}
}
}
#endif
#if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
if ( !GetHildonProgram() )
{
wxLogError(_("Unable to initialize Hildon program"));
return false;
}
#endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
return true;
}
bool wxGLCanvas::Create(wxWindow *parent,
const wxGLAttributes& dispAttrs,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name,
const wxPalette& palette)
{
m_noExpose = true;
m_nativeSizeEvent = true;
if ( !InitVisual(dispAttrs) )
return false;
GdkVisual *visual = gdkx_visual_get( GetXVisualInfo()->visualid );
GdkColormap *colormap = gdk_colormap_new( visual, TRUE );
gtk_widget_push_colormap( colormap );
gtk_widget_push_visual( visual );
wxWindow::Create( parent, id, pos, size, style, name );
m_glWidget = m_wxwindow;
gtk_pizza_set_clear( GTK_PIZZA(m_wxwindow), FALSE );
#if WXWIN_COMPATIBILITY_2_8
gtk_signal_connect( GTK_OBJECT(m_wxwindow), "realize",
GTK_SIGNAL_FUNC(gtk_glwindow_realized_callback), (gpointer) this);
#endif // WXWIN_COMPATIBILITY_2_8
gtk_signal_connect( GTK_OBJECT(m_wxwindow), "map",
GTK_SIGNAL_FUNC(gtk_glwindow_map_callback), (gpointer) this);
gtk_signal_connect( GTK_OBJECT(m_wxwindow), "expose_event",
GTK_SIGNAL_FUNC(gtk_glwindow_expose_callback), (gpointer) this);
gtk_signal_connect( GTK_OBJECT(m_wxwindow), "draw",
GTK_SIGNAL_FUNC(gtk_glwindow_draw_callback), (gpointer) this);
gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
GTK_SIGNAL_FUNC(gtk_glcanvas_size_callback), (gpointer) this);
gtk_widget_pop_visual();
gtk_widget_pop_colormap();
#if WXWIN_COMPATIBILITY_2_8
// if our parent window is already visible, we had been realized before we
// connected to the "realize" signal and hence our m_glContext hasn't been
// initialized yet and we have to do it now
if (GTK_WIDGET_REALIZED(m_wxwindow))
gtk_glwindow_realized_callback( m_wxwindow, this );
#endif // WXWIN_COMPATIBILITY_2_8
if (GTK_WIDGET_MAPPED(m_wxwindow))
gtk_glwindow_map_callback( m_wxwindow, this );
return true;
}
