protected void OnResourceNameChanged(object ob, EventArgs args)
{
Gdk.Pixbuf pix = (Gdk.Pixbuf) resources [resourceNameEntry.Text];
if (pix != null)
previewResource.Pixbuf = pix;
else {
if (missingThumbnail == null)
missingThumbnail = WidgetUtils.MissingIcon;
previewResource.Pixbuf = missingThumbnail;
}
UpdateButtons ();
}