/* ================================================================

 * Cewolf : Chart enabling Web Objects Framework

 * ================================================================

 *

 * Project Info:  http://cewolf.sourceforge.net

 * Project Lead:  Guido Laures (guido@laures.de);

 *

 * (C) Copyright 2002, by Guido Laures

 *

 * This library is free software; you can redistribute it and/or modify it under the terms

 * of the GNU Lesser General Public License as published by the Free Software Foundation;

 * either version 2.1 of the License, or (at your option) any later version.

 *

 * 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., 59 Temple Place, Suite 330,

 * Boston, MA 02111-1307, USA.

 */

package de.laures.cewolf.taglib.tags;

import java.awt.Color;

import java.awt.GradientPaint;

import java.awt.Paint;

import java.awt.Rectangle;

import java.awt.RenderingHints;

import java.awt.geom.AffineTransform;

import java.awt.geom.Rectangle2D;

import java.awt.image.ColorModel;

import java.io.Serializable;

/** 

 * Special gradient paint which can be serialized.

 * @see GradientPaint

 * @author  Guido Laures 

 */

public class SerializableGradientPaint implements Paint, Serializable {

    private int x1;

    private int y1;

    private Color c1 = Color.white;

    private int x2;

    private int y2;

    private Color c2 = Color.white;

    private boolean cyclic = false;

    private transient Paint paint = null;

    public SerializableGradientPaint() {

    }

    /** Creates a new instance of SerializableGradientPaint */

    public SerializableGradientPaint(int x1, int y1, Color c1, int x2, int y2, Color c2) {

        this.x1 = x1;

        this.y1 = y1;

        this.c1 = c1;

        this.x2 = x2;

        this.y2 = y2;

        this.c2 = c2;

    }

    private Paint getPaint() {

        if (paint == null) {

            createPaint();

        }

        return paint;

    }

    private void createPaint() {

        paint = new GradientPaint(x1, y1, c1, x2, y2, c2, cyclic);

    }

    public void setPoint1(int x, int y, Color c) {

        this.x1 = x;

        this.y1 = y;

        this.c1 = c;

    }

    public void setPoint2(int x, int y, Color c) {

        this.x2 = x;

        this.y2 = y;

        this.c2 = c;

    }

    public java.awt.PaintContext createContext(ColorModel colorModel, Rectangle rectangle, Rectangle2D rectangle2D,

    AffineTransform affineTransform, RenderingHints renderingHints) {

        return getPaint().createContext(colorModel, rectangle, rectangle2D, affineTransform, renderingHints);

    }

    public int getTransparency() {

        return getPaint().getTransparency();

    }

    public void setCyclic(boolean b) {

        this.cyclic = b;

    }

    public String toString() {

        return "" + x1 + "," + y1 + "," + c1 + "," + x2 + "," + y2 + "," + c2;

    }

}