/*
* 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, 1:54 AM
*/
package com.kitfox.svg;
import com.kitfox.svg.xml.StyleAttribute;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.net.URI;
/**
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class Use extends ShapeElement
{
public static final String TAG_NAME = "use";
float x = 0f;
float y = 0f;
float width = 1f;
float height = 1f;
// SVGElement href = null;
URI href = null;
AffineTransform refXform;
/**
* Creates a new instance of LinearGradient
*/
public Use()
{
}
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();
}
if (getPres(sty.setName("xlink:href")))
{
URI src = sty.getURIValue(getXMLBase());
href = src;
// href = diagram.getUniverse().getElement(src);
}
//Determine use offset/scale
refXform = new AffineTransform();
refXform.translate(this.x, this.y);
}
public void render(Graphics2D g) throws SVGException
{
beginLayer(g);
//AffineTransform oldXform = g.getTransform();
AffineTransform oldXform = g.getTransform();
g.transform(refXform);
SVGElement ref = diagram.getUniverse().getElement(href);
if (ref == null || !(ref instanceof RenderableElement))
{
return;
}
RenderableElement rendEle = (RenderableElement) ref;
rendEle.pushParentContext(this);
rendEle.render(g);
rendEle.popParentContext();
g.setTransform(oldXform);
finishLayer(g);
}
public Shape getShape()
{
SVGElement ref = diagram.getUniverse().getElement(href);
if (ref instanceof ShapeElement)
{
Shape shape = ((ShapeElement) ref).getShape();
shape = refXform.createTransformedShape(shape);
shape = shapeToParent(shape);
return shape;
}
return null;
}
public Rectangle2D getBoundingBox() throws SVGException
{
SVGElement ref = diagram.getUniverse().getElement(href);
if (ref instanceof ShapeElement)
{
ShapeElement shapeEle = (ShapeElement) ref;
shapeEle.pushParentContext(this);
Rectangle2D bounds = shapeEle.getBoundingBox();
shapeEle.popParentContext();
bounds = refXform.createTransformedShape(bounds).getBounds2D();
bounds = boundsToParent(bounds);
return bounds;
}
return null;
}
/**
* 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("xlink:href")))
{
URI src = sty.getURIValue(getXMLBase());
// SVGElement newVal = diagram.getUniverse().getElement(src);
if (!src.equals(href))
{
href = src;
shapeChange = true;
}
}
/*
if (getPres(sty.setName("xlink:href")))
{
URI src = sty.getURIValue(getXMLBase());
href = diagram.getUniverse().getElement(src);
}
//Determine use offset/scale
refXform = new AffineTransform();
refXform.translate(this.x, this.y);
refXform.scale(this.width, this.height);
*/
if (shapeChange)
{
build();
//Determine use offset/scale
// refXform.setToTranslation(this.x, this.y);
// refXform.scale(this.width, this.height);
// return true;
}
return changeState || shapeChange;
}
}