/*
* Copyright (c) 2008, Harald Kuhr
* 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 "TwelveMonkeys" 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.twelvemonkeys.image;
import com.twelvemonkeys.lang.Validate;
import javax.swing.Icon;
import java.awt.image.BufferedImage;
import java.awt.*;
import java.awt.geom.AffineTransform;
/**
* An {@code Icon} implementation backed by a {@code BufferedImage}.
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/image/BufferedImageIcon.java#2 $
*/
public class BufferedImageIcon implements Icon {
private final BufferedImage image;
private int width;
private int height;
private final boolean fast;
public BufferedImageIcon(BufferedImage pImage) {
this(pImage, pImage != null ? pImage.getWidth() : 0, pImage != null ? pImage.getHeight() : 0);
}
public BufferedImageIcon(BufferedImage pImage, int pWidth, int pHeight) {
this(pImage, pWidth, pHeight, pImage.getWidth() == pWidth && pImage.getHeight() == pHeight);
}
public BufferedImageIcon(BufferedImage pImage, int pWidth, int pHeight, boolean useFastRendering) {
image = Validate.notNull(pImage, "image");
width = Validate.isTrue(pWidth > 0, pWidth, "width must be positive: %d");
height = Validate.isTrue(pHeight > 0, pHeight, "height must be positive: %d");
fast = useFastRendering;
}
public int getIconHeight() {
return height;
}
public int getIconWidth() {
return width;
}
public void paintIcon(Component c, Graphics g, int x, int y) {
if (fast || !(g instanceof Graphics2D)) {
//System.out.println("Scaling fast");
g.drawImage(image, x, y, width, height, null);
}
else {
//System.out.println("Scaling using interpolation");
Graphics2D g2 = (Graphics2D) g;
AffineTransform xform = AffineTransform.getTranslateInstance(x, y);
xform.scale(width / (double) image.getWidth(), height / (double) image.getHeight());
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(image, xform, null);
}
}
}