/**
 * License Agreement.
 *
 * Rich Faces - Natural Ajax for Java Server Faces (JSF)
 *
 * Copyright (C) 2007 Exadel, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1 as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 */
package org.richfaces.renderkit.html.images;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.util.Date;

import javax.faces.context.FacesContext;

import org.ajax4jsf.resource.GifRenderer;
import org.ajax4jsf.resource.InternetResourceBuilder;
import org.ajax4jsf.resource.Java2Dresource;
import org.ajax4jsf.resource.ResourceContext;
import org.ajax4jsf.util.HtmlColor;
import org.ajax4jsf.util.Zipper2;

/** 
 * implementation of the default CANCEL icon renderer
 * @author Anton Belevich
 * @since 3.2.0
 *  
 */
public class CancelControlIcon extends Java2Dresource {

	protected static final String ICON_COLOR = "#971715"; 
	protected static final String ICON_BORDER = "#FFFFFF";
	protected static final String ALTERNATE_COLOR = "#ED6161";
	
	private static final Dimension dimensions = new Dimension(11, 11);

	public CancelControlIcon() {
		setRenderer(new GifRenderer());
		setLastModified(new Date(InternetResourceBuilder.getInstance().getStartTime()));
	}
	
	public Dimension getDimensions(FacesContext facesContext, Object data) {
		return dimensions;
	}
	
	protected Dimension getDimensions(ResourceContext resourceContext) {
		return dimensions;
	}
	
	protected Object deserializeData(byte[] objectArray) {
		if (objectArray == null) {
			return null;
		}
		Zipper2 zipper = new Zipper2(objectArray);
		return new Color[] {zipper.nextColor(), zipper.nextColor()};
	}	
	
	protected Object getDataToStore(FacesContext context, Object data){
		
		byte [] ret = new byte[6];
			
		Color color = null;
		Zipper2 zipper = new Zipper2(ret);
				
		color = HtmlColor.decode(ICON_COLOR);
		zipper.addColor(color);
		
		color = HtmlColor.decode(ICON_BORDER);
		zipper.addColor(color);
			
		return ret;
	}
	
	protected void paint(ResourceContext context, Graphics2D g2d) {
		Color [] data = (Color[]) restoreData(context);

		Color iconColor = data[0];
		Color iconBorder = data[1];
		
		g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
//		g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
//		g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
		g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_DEFAULT);
		g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_DEFAULT);
		g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
		g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
		g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
		g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_DEFAULT);
			
		g2d.setColor(iconColor);

		Color altenateColor = HtmlColor.decode(ALTERNATE_COLOR);
		GradientPaint gradient = new GradientPaint(2,3,altenateColor,3,9,iconColor);
		g2d.setPaint(gradient);
			
		// draw cross
		g2d.drawLine(2, 3, 7, 8);
		g2d.drawLine(3, 3, 7, 7);
		g2d.drawLine(3, 2, 8, 7);
		
		g2d.drawLine(2, 7, 7, 2);
		g2d.drawLine(3, 7, 7, 3);
		g2d.drawLine(3, 8, 8, 3);
		
		//draw border
		g2d.setColor(iconBorder);
		g2d.drawLine(1, 3, 3, 5);
		g2d.drawLine(3, 5, 1, 7);
		g2d.drawLine(1, 7, 3, 9);
		g2d.drawLine(3, 9, 5, 7);
		g2d.drawLine(5, 7, 7, 9);
		g2d.drawLine(7, 9, 9, 7);
		g2d.drawLine(9, 7, 7, 5);
		g2d.drawLine(7, 5, 9, 3);
		g2d.drawLine(9, 3, 7, 1);
		g2d.drawLine(7, 1, 5, 3);
		g2d.drawLine(5, 3, 3, 1);		
		g2d.drawLine(3, 1, 1, 3);
		
	
	}
}

