package org.jzy3d.plot2d.rendering;

import java.awt.Graphics2D;

import org.jzy3d.colors.Color;



public class CanvasAWT implements Canvas{
	
	/**
     * Creates a new instance of Pencil2dAWT.
     * 
     * A Pencil2dAWT provides an implementation for drawing wafer sites
     * on AWT.
     */
	public CanvasAWT(Graphics2D graphic){
		target = graphic;
	}
	
	@Override
    public void drawString( int x, int y, String text ){
		target.setColor(fgColor);
		target.drawString(text, x, y);
	}
	
	@Override
    public void drawRect( Color color, int x, int y, int width, int height, boolean border ){
		if(color!=null){
			target.setColor(awt(color));
			target.fillRect(x, y, width, height);
		}
		if(border){
			target.setColor(BLACK);
			target.drawRect(x, y, width, height);
		}
	}
	
	@Override
    public void drawRect( Color color, int x, int y, int width, int height ){
		drawRect( color, x, y, width, height, true );
	}
	
	@Override
    public void drawDot( Color color, int x, int y ){
		target.setColor(awt(color));
		target.fillRect(x-PIXEL_WITH/2, y-PIXEL_WITH/2, PIXEL_WITH, PIXEL_WITH);
	}
	
	@Override
    public void drawOval( Color color, int x, int y, int width, int height ){
		target.setColor(awt(color));
		target.fillOval(x, y, width, height);
		target.setColor(BLACK);
		target.drawOval(x, y, width, height);
	}

	@Override
    public void drawBackground( Color color, int width, int height ){
		bgColor = awt(color);
		target.setColor(bgColor);
		target.fillRect(0, 0, width, height);	
	}
	
	/**********************************************************************************/

	/** Converts a {@link org.jzy3d.colors.Color Imaging Color} 
	 * into a {@link java.awt.Color AWT Color}.
	 *
	 * Note that this converter does not use the AWT color's alpha channel, in order
	 * to offer the same behaviour than the SWT converter.
	 */
	public static java.awt.Color awt(Color color){
		return new java.awt.Color(color.r, color.g, color.b);
	}
	
	/**********************************************************************************/

	private Graphics2D target;

	private java.awt.Color bgColor = WHITE; // default bg
	private java.awt.Color fgColor = BLACK; // default bg
	
	private static java.awt.Color WHITE = java.awt.Color.WHITE;
	private static java.awt.Color BLACK = java.awt.Color.BLACK;
	
	private final static int PIXEL_WITH = 2;
}