/*
 * Copyright (c) 2014 tabletoptool.com team.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     rptools.com team - initial implementation
 *     tabletoptool.com team - further development
 */
package com.t3.client.ui.token;

import java.awt.AlphaComposite;
import java.awt.Composite;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;

import com.t3.MD5Key;
import com.t3.model.Token;
import com.t3.swing.SwingUtil;
import com.t3.util.ImageManager;
import com.t3.xstreamversioned.version.SerializationVersion;

/**
 * Token overlay for bar meters.
 * 
 * @author Jay
 */
@SerializationVersion(0)
public class MultipleImageBarTokenOverlay extends BarTokenOverlay {

	/**
	 * ID of the base image displayed in the overlay.
	 */
	private MD5Key[] assetIds;

	/**
	 * Needed for serialization
	 */
	public MultipleImageBarTokenOverlay() {
		this(AbstractTokenOverlay.DEFAULT_STATE_NAME, null);
	}

	/**
	 * Create the complete image overlay.
	 * 
	 * @param name
	 *            Name of the new token overlay
	 * @param theAssetIds
	 *            Id of the base image.
	 */
	public MultipleImageBarTokenOverlay(String name, MD5Key[] theAssetIds) {
		super(name);
		assetIds = theAssetIds;
	}

	/**
	 * @see com.t3.client.ui.token.AbstractTokenOverlay#clone()
	 */
	@Override
	public Object clone() {
		BarTokenOverlay overlay = new MultipleImageBarTokenOverlay(getName(), assetIds);
		overlay.setOrder(getOrder());
		overlay.setGroup(getGroup());
		overlay.setMouseover(isMouseover());
		overlay.setOpacity(getOpacity());
		overlay.setIncrements(getIncrements());
		overlay.setSide(getSide());
		overlay.setShowGM(isShowGM());
		overlay.setShowOwner(isShowOwner());
		overlay.setShowOthers(isShowOthers());
		return overlay;
	}

	/**
	 * @see com.t3.client.ui.token.BarTokenOverlay#paintOverlay(java.awt.Graphics2D,
	 *      com.t3.model.Token, java.awt.Rectangle, double)
	 */
	@Override
	public void safePaintOverlay(Graphics2D g, Token token, Rectangle bounds, float value) {
		int incr = findIncrement(value);

		// Get the images
		BufferedImage image = ImageManager.getImageAndWait(assetIds[incr]);

		Dimension d = bounds.getSize();
		Dimension size = new Dimension(image.getWidth(), image.getHeight());
		SwingUtil.constrainTo(size, d.width, d.height);

		// Find the position of the image according to the size and side where they are placed
		int x = 0;
		int y = 0;
		switch (getSide()) {
		case RIGHT:
			x = d.width - size.width;
			break;
		case BOTTOM:
			y = d.height - size.height;
		}

		Composite tempComposite = g.getComposite();
		if (getOpacity() != 100) {
			g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float) getOpacity() / 100));
		}
		g.drawImage(image, x, y, size.width, size.height, null);
		g.setComposite(tempComposite);
	}

	/** @return Getter for bottomAssetId */
	public MD5Key[] getAssetIds() {
		return assetIds;
	}

	/**
	 * @param theAssetIds
	 *            Setter for bottomAssetId
	 */
	public void setAssetIds(MD5Key[] theAssetIds) {
		this.assetIds = theAssetIds;
	}
}