/*
* 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 February 20, 2004, 10:00 PM
*/
package com.kitfox.svg;
import com.kitfox.svg.app.data.Handler;
import com.kitfox.svg.xml.StyleAttribute;
import java.awt.AlphaComposite;
import java.awt.Composite;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.net.URI;
import java.net.URL;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Implements an image.
*
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class ImageSVG extends RenderableElement
{
public static final String TAG_NAME = "image";
float x = 0f;
float y = 0f;
float width = 0f;
float height = 0f;
// BufferedImage href = null;
URL imageSrc = null;
AffineTransform xform;
Rectangle2D bounds;
/**
* Creates a new instance of Font
*/
public ImageSVG()
{
}
public String getTagName()
{
return TAG_NAME;
}
protected void build() throws SVGException
{
super.build();
StyleAttribute sty = new StyleAttribute();
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();
}
try
{
if (getPres(sty.setName("xlink:href")))
{
URI src = sty.getURIValue(getXMLBase());
if ("data".equals(src.getScheme()))
{
imageSrc = new URL(null, src.toASCIIString(), new Handler());
} else
{
try
{
imageSrc = src.toURL();
} catch (Exception e)
{
Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse xlink:href", e);
// e.printStackTrace();
imageSrc = null;
}
}
}
} catch (Exception e)
{
throw new SVGException(e);
}
diagram.getUniverse().registerImage(imageSrc);
//Set widths if not set
BufferedImage img = diagram.getUniverse().getImage(imageSrc);
if (img == null)
{
xform = new AffineTransform();
bounds = new Rectangle2D.Float();
return;
}
if (width == 0)
{
width = img.getWidth();
}
if (height == 0)
{
height = img.getHeight();
}
//Determine image xform
xform = new AffineTransform();
// xform.setToScale(this.width / img.getWidth(), this.height / img.getHeight());
// xform.translate(this.x, this.y);
xform.translate(this.x, this.y);
xform.scale(this.width / img.getWidth(), this.height / img.getHeight());
bounds = new Rectangle2D.Float(this.x, this.y, this.width, this.height);
}
public float getX()
{
return x;
}
public float getY()
{
return y;
}
public float getWidth()
{
return width;
}
public float getHeight()
{
return height;
}
void pick(Point2D point, boolean boundingBox, List retVec) throws SVGException
{
if (getBoundingBox().contains(point))
{
retVec.add(getPath(null));
}
}
void pick(Rectangle2D pickArea, AffineTransform ltw, boolean boundingBox, List retVec) throws SVGException
{
if (ltw.createTransformedShape(getBoundingBox()).intersects(pickArea))
{
retVec.add(getPath(null));
}
}
public void render(Graphics2D g) throws SVGException
{
StyleAttribute styleAttrib = new StyleAttribute();
if (getStyle(styleAttrib.setName("visibility")))
{
if (!styleAttrib.getStringValue().equals("visible"))
{
return;
}
}
beginLayer(g);
float opacity = 1f;
if (getStyle(styleAttrib.setName("opacity")))
{
opacity = styleAttrib.getRatioValue();
}
if (opacity <= 0)
{
return;
}
Composite oldComp = null;
if (opacity < 1)
{
oldComp = g.getComposite();
Composite comp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity);
g.setComposite(comp);
}
BufferedImage img = diagram.getUniverse().getImage(imageSrc);
if (img == null)
{
return;
}
AffineTransform curXform = g.getTransform();
g.transform(xform);
g.drawImage(img, 0, 0, null);
g.setTransform(curXform);
if (oldComp != null)
{
g.setComposite(oldComp);
}
finishLayer(g);
}
public Rectangle2D getBoundingBox()
{
return boundsToParent(bounds);
}
/**
* 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;
}
}
try
{
if (getPres(sty.setName("xlink:href")))
{
URI src = sty.getURIValue(getXMLBase());
URL newVal;
if ("data".equals(src.getScheme()))
{
newVal = new URL(null, src.toASCIIString(), new Handler());
} else
{
newVal = src.toURL();
}
if (!newVal.equals(imageSrc))
{
imageSrc = newVal;
shapeChange = true;
}
}
} catch (IllegalArgumentException ie)
{
Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Image provided with illegal value for href: \""
+ sty.getStringValue() + '"', ie);
} catch (Exception e)
{
Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse xlink:href", e);
}
if (shapeChange)
{
build();
// diagram.getUniverse().registerImage(imageSrc);
//
// //Set widths if not set
// BufferedImage img = diagram.getUniverse().getImage(imageSrc);
// if (img == null)
// {
// xform = new AffineTransform();
// bounds = new Rectangle2D.Float();
// }
// else
// {
// if (width == 0) width = img.getWidth();
// if (height == 0) height = img.getHeight();
//
// //Determine image xform
// xform = new AffineTransform();
//// xform.setToScale(this.width / img.getWidth(), this.height / img.getHeight());
//// xform.translate(this.x, this.y);
// xform.translate(this.x, this.y);
// xform.scale(this.width / img.getWidth(), this.height / img.getHeight());
//
// bounds = new Rectangle2D.Float(this.x, this.y, this.width, this.height);
// }
//
// return true;
}
return changeState || shapeChange;
}
}