OperationSwitchPanel.java

/*******************************************************************************
 * Copyright (c) 2003-2005, 2013 Till Zoppke.
 * 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:
 *     Till Zoppke - initial API and implementation
 ******************************************************************************/
/*
 * Created on 23.05.2004
 */
package eniac.data.view.sw;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;

import eniac.data.model.sw.SwitchAndFlag;
import eniac.skin.Descriptor;

/**
 * @author zoppke
 */
public class OperationSwitchPanel extends SwitchPanel {

	/**
	 * @param sw
	 */
	public OperationSwitchPanel() {
		// empty
	}

	protected void paintComponent(Graphics g, int x, int y, int width, int height, int lod) {

		// get descriptor. If no descriptor, just return.
		Descriptor descriptor = getDescriptor(lod);
		if (descriptor == null) {
			return;
		}

		// helper variables
		Image img;
		Image[] images;
		SwitchAndFlag os = ((SwitchAndFlag) _data);
		int value = os.getValue();
		boolean flag = os.isFlag();

		// draw background image. Background is the operation value.
		images = (Image[]) descriptor.get(Descriptor.Key.BACK_IMAGE_ARRAY);
		img = images[value];
		g.drawImage(img, x, y, width, height, this);

		// paint foreground image. Foreground is the clear-correct value.
		images = (Image[]) descriptor.get(Descriptor.Key.FORE_IMAGE_ARRAY);
		img = flag ? images[1] : images[0];

		// scale rectangle
		Rectangle rect = (Rectangle) descriptor.get(Descriptor.Key.RECTANGLE);
		x += rect.x * width / descriptor.getWidth();
		y += rect.y * height / descriptor.getHeight();
		width = width * rect.width / descriptor.getWidth();
		height = height * rect.height / descriptor.getHeight();

		// draw foreground image
		g.drawImage(img, x, y, width, height, this);
	}
}