/*
* Copyright (c) 2005-2010 Trident Kirill Grouchnikov. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Trident Kirill Grouchnikov nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 OWNER 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.
*/
package org.pushingpixels.trident.swing;
import java.awt.*;
import java.util.*;
import org.pushingpixels.trident.interpolator.PropertyInterpolator;
import org.pushingpixels.trident.interpolator.PropertyInterpolatorSource;
/**
* Built-in interpolators for Swing / AWT / Java2D classes.
*
* @author Kirill Grouchnikov
*/
public class AWTPropertyInterpolators implements PropertyInterpolatorSource {
private Set<PropertyInterpolator> interpolators;
public AWTPropertyInterpolators() {
this.interpolators = new HashSet<PropertyInterpolator>();
this.interpolators.add(new ColorInterpolator());
this.interpolators.add(new PointInterpolator());
this.interpolators.add(new RectangleInterpolator());
this.interpolators.add(new DimensionInterpolator());
}
@Override
public Set<PropertyInterpolator> getPropertyInterpolators() {
return Collections.unmodifiableSet(this.interpolators);
}
static class ColorInterpolator implements PropertyInterpolator<Color> {
@Override
public Class getBasePropertyClass() {
return Color.class;
}
@Override
public Color interpolate(Color from, Color to, float timelinePosition) {
return getInterpolatedColor(from, to, 1.0f - timelinePosition);
}
int getInterpolatedRGB(Color color1, Color color2, float color1Likeness) {
if ((color1Likeness < 0.0) || (color1Likeness > 1.0))
throw new IllegalArgumentException(
"Color likeness should be in 0.0-1.0 range [is "
+ color1Likeness + "]");
int lr = color1.getRed();
int lg = color1.getGreen();
int lb = color1.getBlue();
int la = color1.getAlpha();
int dr = color2.getRed();
int dg = color2.getGreen();
int db = color2.getBlue();
int da = color2.getAlpha();
// using some interpolation values (such as 0.29 from issue 401)
// results in an incorrect final value without Math.round.
int r = (lr == dr) ? lr : (int) Math.round(color1Likeness * lr
+ (1.0 - color1Likeness) * dr);
int g = (lg == dg) ? lg : (int) Math.round(color1Likeness * lg
+ (1.0 - color1Likeness) * dg);
int b = (lb == db) ? lb : (int) Math.round(color1Likeness * lb
+ (1.0 - color1Likeness) * db);
int a = (la == da) ? la : (int) Math.round(color1Likeness * la
+ (1.0 - color1Likeness) * da);
return (a << 24) | (r << 16) | (g << 8) | b;
}
Color getInterpolatedColor(Color color1, Color color2,
float color1Likeness) {
if (color1.equals(color2))
return color1;
if (color1Likeness == 1.0)
return color1;
if (color1Likeness == 0.0)
return color2;
return new Color(
getInterpolatedRGB(color1, color2, color1Likeness), true);
}
}
static class PointInterpolator implements PropertyInterpolator<Point> {
public Point interpolate(Point from, Point to, float timelinePosition) {
int x = from.x + (int) (timelinePosition * (to.x - from.x));
int y = from.y + (int) (timelinePosition * (to.y - from.y));
return new Point(x, y);
}
@Override
public Class getBasePropertyClass() {
return Point.class;
}
}
static class RectangleInterpolator implements
PropertyInterpolator<Rectangle> {
public Rectangle interpolate(Rectangle from, Rectangle to,
float timelinePosition) {
int x = from.x + (int) (timelinePosition * (to.x - from.x));
int y = from.y + (int) (timelinePosition * (to.y - from.y));
int w = from.width
+ (int) (timelinePosition * (to.width - from.width));
int h = from.height
+ (int) (timelinePosition * (to.height - from.height));
return new Rectangle(x, y, w, h);
}
@Override
public Class getBasePropertyClass() {
return Rectangle.class;
}
}
static class DimensionInterpolator implements
PropertyInterpolator<Dimension> {
public Dimension interpolate(Dimension from, Dimension to,
float timelinePosition) {
int w = from.width
+ (int) (timelinePosition * (to.width - from.width));
int h = from.height
+ (int) (timelinePosition * (to.height - from.height));
return new Dimension(w, h);
}
public Class getBasePropertyClass() {
return Dimension.class;
}
}
}