// Save window location in appSettings hash table
private void saveShellBounds() {
// Save window bounds in app settings
Rectangle bounds = getShell().getBounds();
appSettings.setProperty("top", String.valueOf(bounds.y));
appSettings.setProperty("left", String.valueOf(bounds.x));
appSettings.setProperty("width", String.valueOf(bounds.width));
appSettings.setProperty("height", String.valueOf(bounds.height));
}