/*
 * SVG Salamander
 * Copyright (c) 2004, Mark McKay
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or 
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 *   - Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the following
 *     disclaimer.
 *   - Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials 
 *     provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE. 
 * 
 * Mark McKay can be contacted at mark@kitfox.com.  Salamander and other
 * projects can be found at http://www.kitfox.com
 *
 * Created on January 26, 2004, 5:25 PM
 */
package com.kitfox.svg;

import com.kitfox.svg.xml.StyleAttribute;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RectangularShape;
import java.awt.geom.RoundRectangle2D;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

/**
 * @author Mark McKay
 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
 */
public class Rect extends ShapeElement
{
    public static final String TAG_NAME = "rect";

    float x = 0f;
    float y = 0f;
    float width = 0f;
    float height = 0f;
    float rx = 0f;
    float ry = 0f;
    RectangularShape rect;

    /**
     * Creates a new instance of Rect
     */
    public Rect()
    {
    }

    public String getTagName()
    {
        return TAG_NAME;
    }

    private void writeObject(ObjectOutputStream out) throws IOException
    {
        out.writeFloat(x);
        out.writeFloat(y);
        out.writeFloat(width);
        out.writeFloat(height);
        out.writeFloat(rx);
        out.writeFloat(ry);
    }

    private void readObject(ObjectInputStream in) throws IOException
    {
        x = in.readFloat();
        y = in.readFloat();
        width = in.readFloat();
        height = in.readFloat();
        rx = in.readFloat();
        ry = in.readFloat();

        if (rx == 0f && ry == 0f)
        {
            rect = new Rectangle2D.Float(x, y, width, height);
        } else
        {
            rect = new RoundRectangle2D.Float(x, y, width, height, rx * 2, ry * 2);
        }
    }

    /*
     public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent)
     {
     //Load style string
     super.loaderStartElement(helper, attrs, parent);

     String x = attrs.getValue("x");
     String y = attrs.getValue("y");
     String width = attrs.getValue("width");
     String height = attrs.getValue("height");
     String rx = attrs.getValue("rx");
     String ry = attrs.getValue("ry");

     if (rx == null) rx = ry;
     if (ry == null) ry = rx;

     this.x = XMLParseUtil.parseFloat(x);
     this.y = XMLParseUtil.parseFloat(y);
     this.width = XMLParseUtil.parseFloat(width);
     this.height = XMLParseUtil.parseFloat(height);
     if (rx != null)
     {
     this.rx = XMLParseUtil.parseFloat(rx);
     this.ry = XMLParseUtil.parseFloat(ry);
     }

     build();
     //        setBounds(this.x, this.y, this.width, this.height);
     }
     */
    protected void build() throws SVGException
    {
        super.build();

        StyleAttribute sty = new StyleAttribute();

//        SVGElement parent = this.getParent();
//        if (parent instanceof RenderableElement)
//        {
//            RenderableElement re = (RenderableElement)parent;
//            Rectangle2D bounds = re.getBoundingBox();
//            bounds = null;
//        }


        if (getPres(sty.setName("x")))
        {
            x = sty.getFloatValueWithUnits();
        }

        if (getPres(sty.setName("y")))
        {
            y = sty.getFloatValueWithUnits();
        }

        if (getPres(sty.setName("width")))
        {
            width = sty.getFloatValueWithUnits();
        }

        if (getPres(sty.setName("height")))
        {
            height = sty.getFloatValueWithUnits();
        }

        boolean rxSet = false;
        if (getPres(sty.setName("rx")))
        {
            rx = sty.getFloatValueWithUnits();
            rxSet = true;
        }

        boolean rySet = false;
        if (getPres(sty.setName("ry")))
        {
            ry = sty.getFloatValueWithUnits();
            rySet = true;
        }

        if (!rxSet)
        {
            rx = ry;
        }
        if (!rySet)
        {
            ry = rx;
        }


        if (rx == 0f && ry == 0f)
        {
            rect = new Rectangle2D.Float(x, y, width, height);
        } else
        {
            rect = new RoundRectangle2D.Float(x, y, width, height, rx * 2, ry * 2);
        }
    }

    public void render(Graphics2D g) throws SVGException
    {
        beginLayer(g);
        renderShape(g, rect);
        finishLayer(g);
    }

    public Shape getShape()
    {
        return shapeToParent(rect);
    }

    public Rectangle2D getBoundingBox() throws SVGException
    {
        return boundsToParent(includeStrokeInBounds(rect.getBounds2D()));
    }

    /**
     * Updates all attributes in this diagram associated with a time event. Ie,
     * all attributes with track information.
     *
     * @return - true if this node has changed state as a result of the time
     * update
     */
    public boolean updateTime(double curTime) throws SVGException
    {
//        if (trackManager.getNumTracks() == 0) return false;
        boolean changeState = super.updateTime(curTime);

        //Get current values for parameters
        StyleAttribute sty = new StyleAttribute();
        boolean shapeChange = false;

        if (getPres(sty.setName("x")))
        {
            float newVal = sty.getFloatValueWithUnits();
            if (newVal != x)
            {
                x = newVal;
                shapeChange = true;
            }
        }

        if (getPres(sty.setName("y")))
        {
            float newVal = sty.getFloatValueWithUnits();
            if (newVal != y)
            {
                y = newVal;
                shapeChange = true;
            }
        }

        if (getPres(sty.setName("width")))
        {
            float newVal = sty.getFloatValueWithUnits();
            if (newVal != width)
            {
                width = newVal;
                shapeChange = true;
            }
        }

        if (getPres(sty.setName("height")))
        {
            float newVal = sty.getFloatValueWithUnits();
            if (newVal != height)
            {
                height = newVal;
                shapeChange = true;
            }
        }

        if (getPres(sty.setName("rx")))
        {
            float newVal = sty.getFloatValueWithUnits();
            if (newVal != rx)
            {
                rx = newVal;
                shapeChange = true;
            }
        }

        if (getPres(sty.setName("ry")))
        {
            float newVal = sty.getFloatValueWithUnits();
            if (newVal != ry)
            {
                ry = newVal;
                shapeChange = true;
            }
        }

        if (shapeChange)
        {
            build();
//            if (rx == 0f && ry == 0f)
//            {
//                rect = new Rectangle2D.Float(x, y, width, height);
//            }
//            else
//            {
//                rect = new RoundRectangle2D.Float(x, y, width, height, rx * 2, ry * 2);
//            }
//            return true;
        }

        return changeState || shapeChange;
    }
}