public static java.awt.Image load(
String codecName,
java.io.InputStream inputStream,
edu.cmu.cs.stage3.image.codec.ImageDecodeParam imageDecodeParam)
throws java.io.IOException {
java.io.BufferedInputStream bufferedInputStream;
if (inputStream instanceof java.io.BufferedInputStream) {
bufferedInputStream = (java.io.BufferedInputStream) inputStream;
} else {
bufferedInputStream = new java.io.BufferedInputStream(inputStream);
}
edu.cmu.cs.stage3.image.codec.ImageDecoder imageDecoder =
edu.cmu.cs.stage3.image.codec.ImageCodec.createImageDecoder(
codecName, bufferedInputStream, imageDecodeParam);
java.awt.image.RenderedImage renderedImage = imageDecoder.decodeAsRenderedImage();
if (renderedImage instanceof java.awt.Image) {
return (java.awt.Image) renderedImage;
} else {
java.awt.image.Raster raster = renderedImage.getData();
java.awt.image.ColorModel colorModel = renderedImage.getColorModel();
java.util.Hashtable properties = null;
String[] propertyNames = renderedImage.getPropertyNames();
if (propertyNames != null) {
properties = new java.util.Hashtable();
for (String propertyName : propertyNames) {
properties.put(propertyName, renderedImage.getProperty(propertyName));
}
}
java.awt.image.WritableRaster writableRaster;
if (raster instanceof java.awt.image.WritableRaster) {
writableRaster = (java.awt.image.WritableRaster) raster;
} else {
writableRaster = raster.createCompatibleWritableRaster();
}
java.awt.image.BufferedImage bufferedImage =
new java.awt.image.BufferedImage(
renderedImage.getColorModel(),
writableRaster,
colorModel.isAlphaPremultiplied(),
properties);
return bufferedImage;
}
}
/**
* Converts a rendered image to a {@code BufferedImage}. This utility method has come from a forum
* post by Jim Moore at:
*
* <p><a href="http://www.jguru.com/faq/view.jsp?EID=114602">
* http://www.jguru.com/faq/view.jsp?EID=114602</a>
*
* @param img the rendered image.
* @return A buffered image.
*/
private static BufferedImage convertRenderedImage(RenderedImage img) {
if (img instanceof BufferedImage) {
return (BufferedImage) img;
}
ColorModel cm = img.getColorModel();
int width = img.getWidth();
int height = img.getHeight();
WritableRaster raster = cm.createCompatibleWritableRaster(width, height);
boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
Hashtable properties = new Hashtable();
String[] keys = img.getPropertyNames();
if (keys != null) {
for (int i = 0; i < keys.length; i++) {
properties.put(keys[i], img.getProperty(keys[i]));
}
}
BufferedImage result = new BufferedImage(cm, raster, isAlphaPremultiplied, properties);
img.copyData(raster);
return result;
}
/** @see Graphics2D#drawRenderedImage(RenderedImage, AffineTransform) */
public void drawRenderedImage(RenderedImage img, AffineTransform xform) {
BufferedImage image = null;
if (img instanceof BufferedImage) {
image = (BufferedImage) img;
} else {
ColorModel cm = img.getColorModel();
int width = img.getWidth();
int height = img.getHeight();
WritableRaster raster = cm.createCompatibleWritableRaster(width, height);
boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
Hashtable properties = new Hashtable();
String[] keys = img.getPropertyNames();
if (keys != null) {
for (int i = 0; i < keys.length; i++) {
properties.put(keys[i], img.getProperty(keys[i]));
}
}
BufferedImage result = new BufferedImage(cm, raster, isAlphaPremultiplied, properties);
img.copyData(raster);
image = result;
}
drawImage(image, xform, null);
}