/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.scenes.scene2d.actions;
import com.badlogic.gdx.scenes.scene2d.Action;
import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.utils.Layout;
import com.badlogic.gdx.utils.GdxRuntimeException;
/** Sets an actor's {@link Layout#setLayoutEnabled(boolean) layout} to enabled or disabled. The actor must implements
* {@link Layout}.
* @author Nathan Sweet */
public class LayoutAction extends Action {
private boolean enabled;
public void setTarget (Actor actor) {
if (actor != null && !(actor instanceof Layout)) throw new GdxRuntimeException("Actor must implement layout: " + actor);
super.setTarget(actor);
}
public boolean act (float delta) {
((Layout)target).setLayoutEnabled(enabled);
return true;
}
public boolean isEnabled () {
return enabled;
}
public void setLayoutEnabled (boolean enabled) {
this.enabled = enabled;
}
}