com.kitfox.svg.RadialGradient Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of svgSalamander Show documentation
Show all versions of svgSalamander Show documentation
A tool for displaying and playing SVG content using the Java2D.
/*
* 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 [email protected]. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on January 26, 2004, 1:55 AM
*/
package com.kitfox.svg;
import com.kitfox.svg.xml.StyleAttribute;
import java.awt.Color;
import java.awt.MultipleGradientPaint;
import java.awt.Paint;
import java.awt.RadialGradientPaint;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
/**
* @author Mark McKay
* @author Mark McKay
*/
public class RadialGradient extends Gradient
{
public static final String TAG_NAME = "radialgradient";
float cx = 0.5f;
float cy = 0.5f;
boolean hasFocus = false;
float fx = 0f;
float fy = 0f;
float r = 0.5f;
/**
* Creates a new instance of RadialGradient
*/
public RadialGradient()
{
}
@Override
public String getTagName()
{
return TAG_NAME;
}
@Override
protected void build() throws SVGException
{
super.build();
StyleAttribute sty = new StyleAttribute();
if (getPres(sty.setName("cx")))
{
cx = sty.getFloatValueWithUnits();
}
if (getPres(sty.setName("cy")))
{
cy = sty.getFloatValueWithUnits();
}
hasFocus = false;
if (getPres(sty.setName("fx")))
{
fx = sty.getFloatValueWithUnits();
hasFocus = true;
}
if (getPres(sty.setName("fy")))
{
fy = sty.getFloatValueWithUnits();
hasFocus = true;
}
if (getPres(sty.setName("r")))
{
r = sty.getFloatValueWithUnits();
}
}
@Override
public Paint getPaint(Rectangle2D bounds, AffineTransform xform)
{
MultipleGradientPaint.CycleMethod method;
switch (spreadMethod)
{
default:
case SM_PAD:
method = MultipleGradientPaint.CycleMethod.NO_CYCLE;
break;
case SM_REPEAT:
method = MultipleGradientPaint.CycleMethod.REPEAT;
break;
case SM_REFLECT:
method = MultipleGradientPaint.CycleMethod.REFLECT;
break;
}
Paint paint;
Point2D.Float pt1 = new Point2D.Float(cx, cy);
Point2D.Float pt2 = hasFocus ? new Point2D.Float(fx, fy) : pt1;
float[] stopFractions = getStopFractions();
Color[] stopColors = getStopColors();
//Verify that the stop fractions are valid
{
//for (int i = 0; i <
}
if (gradientUnits == GU_USER_SPACE_ON_USE)
{
paint = new RadialGradientPaint(
pt1,
r,
pt2,
stopFractions,
stopColors,
method,
MultipleGradientPaint.ColorSpaceType.SRGB,
gradientTransform);
} else
{
AffineTransform viewXform = new AffineTransform();
viewXform.translate(bounds.getX(), bounds.getY());
viewXform.scale(bounds.getWidth(), bounds.getHeight());
viewXform.concatenate(gradientTransform);
paint = new RadialGradientPaint(
pt1,
r,
pt2,
stopFractions,
stopColors,
method,
MultipleGradientPaint.ColorSpaceType.SRGB,
viewXform);
}
return paint;
}
/**
* 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
*/
@Override
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("cx")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != cx)
{
cx = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("cy")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != cy)
{
cy = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("fx")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != fx)
{
fx = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("fy")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != fy)
{
fy = newVal;
shapeChange = true;
}
}
if (getPres(sty.setName("r")))
{
float newVal = sty.getFloatValueWithUnits();
if (newVal != r)
{
r = newVal;
shapeChange = true;
}
}
return changeState;
}
}