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/*
* Copyright 2007-2008 Sun Microsystems, Inc. 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.
*
* - Neither the name of Sun Microsystems 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 com.sun.swingset3.utilities;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Transparency;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.net.URL;
import javax.jnlp.ServiceManager;
import javax.swing.SwingConstants;
/**
*
* @author aim
*/
public class Utilities {
private Utilities() {
// never instantiate
}
public static boolean runningFromWebStart() {
return ServiceManager.getServiceNames() != null;
}
public static String getURLFileName(URL url) {
String path = url.getPath();
return path.substring(path.lastIndexOf("/") + 1);
}
private static BufferedImage createCompatibleImage(int width, int height) {
return GraphicsEnvironment.getLocalGraphicsEnvironment().
getDefaultScreenDevice().getDefaultConfiguration().createCompatibleImage(width, height);
}
public static BufferedImage createTranslucentImage(int width, int height) {
return GraphicsEnvironment.getLocalGraphicsEnvironment().
getDefaultScreenDevice().getDefaultConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);
}
public static BufferedImage createGradientImage(int width, int height, Color gradient1, Color gradient2) {
BufferedImage gradientImage = createCompatibleImage(width, height);
GradientPaint gradient = new GradientPaint(0, 0, gradient1, 0, height, gradient2, false);
Graphics2D g2 = (Graphics2D)gradientImage.getGraphics();
g2.setPaint(gradient);
g2.fillRect(0, 0, width, height);
g2.dispose();
return gradientImage;
}
public static BufferedImage createGradientMask(int width, int height, int orientation) {
// algorithm derived from Romain Guy's blog
BufferedImage gradient = new BufferedImage(width, height,
BufferedImage.TYPE_INT_ARGB);
Graphics2D g = gradient.createGraphics();
GradientPaint paint = new GradientPaint(0.0f, 0.0f,
new Color(1.0f, 1.0f, 1.0f, 1.0f),
orientation == SwingConstants.HORIZONTAL? width : 0.0f,
orientation == SwingConstants.VERTICAL? height : 0.0f,
new Color(1.0f, 1.0f, 1.0f, 0.0f));
g.setPaint(paint);
g.fill(new Rectangle2D.Double(0, 0, width, height));
g.dispose();
gradient.flush();
return gradient;
}
public static Color deriveColorAlpha(Color base, int alpha) {
return new Color(base.getRed(), base.getGreen(), base.getBlue(), alpha);
}
/**
* Derives a color by adding the specified offsets to the base color's
* hue, saturation, and brightness values. The resulting hue, saturation,
* and brightness values will be contrained to be between 0 and 1.
* @param base the color to which the HSV offsets will be added
* @param dH the offset for hue
* @param dS the offset for saturation
* @param dB the offset for brightness
* @return Color with modified HSV values
*/
public static Color deriveColorHSB(Color base, float dH, float dS, float dB) {
float hsb[] = Color.RGBtoHSB(
base.getRed(), base.getGreen(), base.getBlue(), null);
hsb[0] += dH;
hsb[1] += dS;
hsb[2] += dB;
return Color.getHSBColor(
hsb[0] < 0? 0 : (hsb[0] > 1? 1 : hsb[0]),
hsb[1] < 0? 0 : (hsb[1] > 1? 1 : hsb[1]),
hsb[2] < 0? 0 : (hsb[2] > 1? 1 : hsb[2]));
}
public static String getHTMLColorString(Color color) {
String red = Integer.toHexString(color.getRed());
String green = Integer.toHexString(color.getGreen());
String blue = Integer.toHexString(color.getBlue());
return "#" +
(red.length() == 1? "0" + red : red) +
(green.length() == 1? "0" + green : green) +
(blue.length() == 1? "0" + blue : blue);
}
public static void printColor(String key, Color color) {
float hsb[] = Color.RGBtoHSB(
color.getRed(), color.getGreen(),
color.getBlue(), null);
System.out.println(key+": RGB=" +
color.getRed() + ","+ color.getGreen() + ","+ color.getBlue() + " " +
"HSB=" + String.format("%.0f%n",hsb[0]*360) + "," +
String.format("%.3f%n",hsb[1]) + "," +
String.format("%.3f%n", hsb[2]));
}
}
