/*
* 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 of the copyright holder 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 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.
*/
package com.twelvemonkeys.image;
import com.twelvemonkeys.lang.
Validate;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.
AffineTransform;
import java.awt.image.
BufferedImage;
/**
* 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);
}
}
}