NinePatchDrawable.java

/*******************************************************************************
 * 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.utils;

import com.badlogic.gdx.graphics.g2d.NinePatch;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;

/**
 * Drawable for a {@link NinePatch}.
 * <p>
 * The drawable sizes are set when the ninepatch is set, but they are separate values. Eg,
 * {@link Drawable#getLeftWidth()} could be set to more than {@link NinePatch#getLeftWidth()} in order to provide more
 * space on the left than actually exists in the ninepatch.
 * <p>
 * The min size is set to the ninepatch total size by default. It could be set to the left+right and top+bottom,
 * excluding the middle size, to allow the drawable to be sized down as small as possible.
 * 
 * @author Nathan Sweet
 */
public class NinePatchDrawable extends BaseDrawable {
	private NinePatch patch;

	/** Creates an unitialized NinePatchDrawable. The ninepatch must be set before use. */
	public NinePatchDrawable() {
	}

	public NinePatchDrawable(NinePatch patch) {
		setPatch(patch);
	}

	public NinePatchDrawable(NinePatchDrawable drawable) {
		super(drawable);
		setPatch(drawable.patch);
	}

	public void draw(SpriteBatch batch, float x, float y, float width, float height) {
		patch.draw(batch, x, y, width, height);
	}

	public void setPatch(NinePatch patch) {
		this.patch = patch;
		setMinWidth(patch.getTotalWidth());
		setMinHeight(patch.getTotalHeight());
		setTopHeight(patch.getPadTop());
		setRightWidth(patch.getPadRight());
		setBottomHeight(patch.getPadBottom());
		setLeftWidth(patch.getPadLeft());
	}

	public NinePatch getPatch() {
		return patch;
	}
}