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| package photospace.graphics; |
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| import java.awt.*; |
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| import java.awt.image.*; |
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| import java.io.*; |
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| import org.apache.commons.logging.*; |
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| import com.mullassery.imaging.*; |
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| import com.mullassery.imaging.util.*; |
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| |
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| public class Sampler |
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| { |
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| private static final Log log = LogFactory.getLog(Sampler.class); |
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| |
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| private static final String JPEG = "JPEG"; |
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| private static final float quality = 1.0f; |
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| private static Imaging imaging; |
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| static |
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| { |
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| imaging = ImagingFactory.createImagingInstance();
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| imaging.setImagingQuality(Imaging.HIGH);
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| } |
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| public static BufferedImage read(File file)
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| { |
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| return imaging.read(file);
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| } |
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| public static void write(BufferedImage image, File file) throws IOException
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| { |
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| imaging.write(image, new FileOutputStream(file), JPEG, 1.0f);
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| } |
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| public static BufferedImage scaleToFit(BufferedImage image, Dimension dim)
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| { |
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| if (dim.getWidth() >= image.getWidth()
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| && dim.getHeight() >= image.getHeight()) return image;
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| int width = -1;
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| int height = -1;
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| if (dim.getWidth() == -1)
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| { |
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| height = (int) dim.getHeight();
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| } |
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| else if (dim.getHeight() == -1)
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| { |
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| width = (int) dim.getWidth();
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| } |
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| else if (dim.getWidth()/image.getWidth() > dim.getHeight()/image.getHeight())
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| height = (int) dim.getHeight();
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| else |
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| width = (int) dim.getWidth();
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| |
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| Image scaled = image.getScaledInstance(width,
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| height, |
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| Image.SCALE_SMOOTH); |
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| return Util.createBufferedImage(scaled, JPEG);
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| } |
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| public static BufferedImage scale(BufferedImage image, Transform transform)
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| { |
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| if (Transform.FILL.equals(transform.getScale())) return Sampler.scaleToFill(image, transform.getDimension());
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| else return Sampler.scaleToFit(image, transform.getDimension());
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| } |
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| public static BufferedImage scaleToFill(BufferedImage image, Dimension dim)
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| { |
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| int width = -1;
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| int height = -1;
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| if (dim.getWidth()/image.getWidth() > dim.getHeight()/image.getHeight())
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| width = (int) dim.getWidth();
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| else |
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| height = (int) dim.getHeight();
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| BufferedImage scaled = Util.createBufferedImage(image.getScaledInstance(width,
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| height, |
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| Image.SCALE_SMOOTH), JPEG); |
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| |
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| int x = (int) (scaled.getWidth() - dim.getWidth())/2;
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| int y = (int) (scaled.getHeight() - dim.getHeight())/2;
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| return scaled.getSubimage(x, y, (int) dim.getWidth(), (int) dim.getHeight());
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| } |
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| public static BufferedImage rotate(BufferedImage image, float degrees)
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| { |
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| return imaging.rotate(image, Util.degrees2Radians(degrees));
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| } |
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| public static byte [] getBytes(BufferedImage image)
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| { |
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| ByteArrayOutputStream output = new ByteArrayOutputStream();
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| imaging.write(image, output, JPEG, quality);
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| return output.toByteArray();
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| } |
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| } |
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