void ShapeWindow()
{
Layout();
var bitmap = new Pixmap(GdkWindow,
Allocation.Width,
Allocation.Height, 1);
Context g = CairoHelper.Create(bitmap);
DrawShape(g, Allocation.Width, Allocation.Height);
g.Dispose();
if (use_shape_ext)
{
ShapeCombineMask(bitmap, 0, 0);
}
else
{
Context rgba = CairoHelper.Create(GdkWindow);
DrawShape(rgba, Allocation.Width, Allocation.Height);
rgba.Dispose();
try {
CompositeUtils.InputShapeCombineMask(this, bitmap, 0, 0);
} catch (EntryPointNotFoundException) {
Log.Warning("gtk+ version doesn't support input shapping");
}
}
bitmap.Dispose();
}
protected override void OnRealized()
{
use_shape_ext = !(CompositeUtils.IsComposited(Screen) && CompositeUtils.SetRgbaColormap(this));
base.OnRealized();
ShapeWindow();
}
protected override void OnRealized()
{
bool composited = CompositeUtils.IsComposited(Screen) && CompositeUtils.SetRgbaColormap(this);
AppPaintable = composited;
base.OnRealized();
}
public static void SetWinOpacity(Gtk.Window win, double opacity)
{
CompositeUtils.ChangeProperty(win.GdkWindow,
Atom.Intern("_NET_WM_WINDOW_OPACITY", false),
Atom.Intern("CARDINAL", false),
PropMode.Replace,
new uint [] { (uint)(0xffffffff * opacity) });
}
public static bool IsComposited(Screen screen)
{
bool composited;
try {
composited = gdk_screen_is_composited(screen.Handle);
} catch (EntryPointNotFoundException) {
System.Console.WriteLine("query composite manager locally");
Atom atom = Atom.Intern(String.Format("_NET_WM_CM_S{0}", screen.Number), false);
composited = Gdk.Selection.OwnerGetForDisplay(screen.Display, atom) != null;
}
// FIXME check for WINDOW_OPACITY so that we support compositing on older composite manager
// versions before they started supporting the real check given above
if (!composited)
{
composited = CompositeUtils.SupportsHint(screen, "_NET_WM_WINDOW_OPACITY");
}
return(composited);
}
protected override void OnRealized()
{
compositing = CompositeUtils.SetRgbaColormap(this);
}