/*
 * Created on Mar 1, 2005
 */
package org.flexdock.plaf.resources.border;

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Insets;

import javax.swing.border.Border;
import javax.swing.plaf.ColorUIResource;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.flexdock.plaf.resources.ColorResourceHandler;
import org.flexdock.plaf.resources.ResourceHandler;

/**
 * @author Christopher Butler
 */
public class SquareBevelBorderResource extends ResourceHandler {
    private static Log log = LogFactory.getLog(SquareBevelBorderResource.class);
    
	private static final ColorUIResource DEFAULT_COLOR = new ColorUIResource(Color.WHITE);
	
	public Object getResource(String data) {
		// pattern should be "lineWidth, lightColor, darkColor"
		String[] args = getArgs(data);
		int lineWidth = args.length>0? getInt(args[0]): 1;
		ColorUIResource lightColor = args.length>1? getColor(args[1]): DEFAULT_COLOR;
		ColorUIResource darkColor = args.length>2? getColor(args[2]): DEFAULT_COLOR;
		
		return new SquareBevelBorder(lineWidth, lightColor, darkColor);
	}
	
	private int getInt(String data) {
		try {
			return Integer.parseInt(data);
		} catch(Exception e) {
			log.debug(e.getMessage(), e);
			return 1;
		}
	}
	
	private ColorUIResource getColor(String data) {
		ColorUIResource color = ColorResourceHandler.parseHexColor(data);
		return data==null? DEFAULT_COLOR: color;
	}
	
	public static class SquareBevelBorder implements Border {
		private int lineWidth;
		private Color light;
		private Color dark;
		private Insets insets;
		
		public SquareBevelBorder(int lineWidth, Color light, Color dark) {
			this.lineWidth = lineWidth;
			this.light = light;
			this.dark = dark;
			insets = new Insets(lineWidth, lineWidth, lineWidth, lineWidth);
		}

		public Insets getBorderInsets(Component c) {
			return insets;
		}

		public boolean isBorderOpaque() {
			return true;
		}
		
		public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
			Color saved = g.getColor();
			
			width-=1;
			height-=1;
			
			for(int i=0; i<lineWidth; i++) {
				g.setColor(dark);
				g.drawLine(width-i, i, width-i, height-i);
				g.drawLine(i, height-i, width-i, height-i);
				
				g.setColor(light);
				g.drawLine(i, i, width-i, i);
				g.drawLine(i, i, i, height-i);
			}
			
			g.setColor(saved);

		}
	}
}
