public WindowOpacityFader(Gtk.Window win, double target, double msec)
{
this.win = win;
win.Mapped += HandleMapped;
win.Unmapped += HandleUnmapped;
fadin = new DoubleAnimation(0.0, target, TimeSpan.FromMilliseconds(msec), opacity => {
CompositeUtils.SetWinOpacity(win, opacity);
});
}
public void HandleMapped(object sender, EventArgs args)
{
bool composited = CompositeUtils.SupportsHint(win.Screen, "_NET_WM_WINDOW_OPACITY");
if (!composited)
{
return;
}
CompositeUtils.SetWinOpacity(win, 0.0);
fadin.Start();
}