001/*
002 * SVG Salamander
003 * Copyright (c) 2004, Mark McKay
004 * All rights reserved.
005 *
006 * Redistribution and use in source and binary forms, with or 
007 * without modification, are permitted provided that the following
008 * conditions are met:
009 *
010 *   - Redistributions of source code must retain the above 
011 *     copyright notice, this list of conditions and the following
012 *     disclaimer.
013 *   - Redistributions in binary form must reproduce the above
014 *     copyright notice, this list of conditions and the following
015 *     disclaimer in the documentation and/or other materials 
016 *     provided with the distribution.
017 *
018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
019 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
020 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
021 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
022 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
023 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
025 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
026 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
027 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
029 * OF THE POSSIBILITY OF SUCH DAMAGE. 
030 * 
031 * Mark McKay can be contacted at mark@kitfox.com.  Salamander and other
032 * projects can be found at http://www.kitfox.com
033 *
034 * Created on January 26, 2004, 1:56 AM
035 */
036package com.kitfox.svg;
037
038import com.kitfox.svg.xml.StyleAttribute;
039import java.awt.Graphics2D;
040import java.awt.Rectangle;
041import java.awt.Shape;
042import java.awt.geom.AffineTransform;
043import java.awt.geom.Rectangle2D;
044
045/**
046 * @author Mark McKay
047 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
048 */
049public class Symbol extends Group
050{
051
052    public static final String TAG_NAME = "symbol";
053    AffineTransform viewXform;
054    Rectangle2D viewBox;
055
056    /**
057     * Creates a new instance of Stop
058     */
059    public Symbol()
060    {
061    }
062
063    public String getTagName()
064    {
065        return TAG_NAME;
066    }
067
068    protected void build() throws SVGException
069    {
070        super.build();
071
072        StyleAttribute sty = new StyleAttribute();
073
074//        sty = getPres("unicode");
075//        if (sty != null) unicode = sty.getStringValue();
076
077
078        if (getPres(sty.setName("viewBox")))
079        {
080            float[] dim = sty.getFloatList();
081            viewBox = new Rectangle2D.Float(dim[0], dim[1], dim[2], dim[3]);
082        }
083
084        if (viewBox == null)
085        {
086//            viewBox = super.getBoundingBox();
087            viewBox = new Rectangle(0, 0, 1, 1);
088        }
089
090        //Transform pattern onto unit square
091        viewXform = new AffineTransform();
092        viewXform.scale(1.0 / viewBox.getWidth(), 1.0 / viewBox.getHeight());
093        viewXform.translate(-viewBox.getX(), -viewBox.getY());
094    }
095
096    protected boolean outsideClip(Graphics2D g) throws SVGException
097    {
098        Shape clip = g.getClip();
099//        g.getClipBounds(clipBounds);
100        Rectangle2D rect = super.getBoundingBox();
101        if (clip == null || clip.intersects(rect))
102        {
103            return false;
104        }
105
106        return true;
107
108    }
109
110    public void render(Graphics2D g) throws SVGException
111    {
112        AffineTransform oldXform = g.getTransform();
113        g.transform(viewXform);
114
115        super.render(g);
116
117        g.setTransform(oldXform);
118    }
119
120    public Shape getShape()
121    {
122        Shape shape = super.getShape();
123        return viewXform.createTransformedShape(shape);
124    }
125
126    public Rectangle2D getBoundingBox() throws SVGException
127    {
128        Rectangle2D rect = super.getBoundingBox();
129        return viewXform.createTransformedShape(rect).getBounds2D();
130    }
131
132    /**
133     * Updates all attributes in this diagram associated with a time event. Ie,
134     * all attributes with track information.
135     *
136     * @return - true if this node has changed state as a result of the time
137     * update
138     */
139    public boolean updateTime(double curTime) throws SVGException
140    {
141//        if (trackManager.getNumTracks() == 0) return false;
142        boolean changeState = super.updateTime(curTime);
143
144        //View box properties do not change
145
146        return changeState;
147    }
148}