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|
package test;
import java.awt.*;
import java.awt.image.*;
import java.awt.datatransfer.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.imageio.*;
import java.awt.BorderLayout;
/**
* <p>Title: </p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2006</p>
*
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
public class TestTransparency extends JPanel {
private Image image;
public TestTransparency(String file) throws Exception {
this(ImageIO.read(new File(file)));
}
public TestTransparency(Image image) throws Exception {
this.image = image;
setPreferredSize(new Dimension(image.getWidth(null), image.getHeight(null)));
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
if (image != null) {
g.drawImage(image, 0, 0, null);
}
}
public static void main(String ...args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new FlowLayout());
try {
frame.add(new TestTransparency("fbavatar.gif"));
/*
BufferedImage image = ImageIO.read(new File("fbavatar.gif"));
short[] invert = new short[256];
for (int i = 0; i < 256; i++) {
invert[i] = (short) (255 - i);
}
BufferedImageOp invertOp = new LookupOp(new ShortLookupTable(0, invert), null);
image = invertOp.filter(image, null);
*/
// Get RGB.
BufferedImage image2 = ImageIO.read(new File("fbavatar.gif"));
int[] rgb = image2.getRGB(0, 0, image2.getWidth(), image2.getHeight(), null, 0, image2.getWidth());
for (int i = 0; i < rgb.length; i++) {
int c = rgb[i];
int a = (c >> 24) & 0xFF;
int r = (c >> 16) & 0xFF;
int g = (c >> 8) & 0xFF;
int b = (c >> 0) & 0xFF;
if ((g == 24) && (b == 181)) {
c = (a << 24) | (r << 16) | (b << 8) | (g << 0);
rgb[i] = c;
System.out.println("old G: "+g+", old B: "+b);
System.out.println("new G: "+((c >> 8) & 0xFF)+", new B: "+((c >> 0) & 0xFF));
}
}
image2.setRGB(0, 0, image2.getWidth(), image2.getHeight(), rgb, 0, image2.getWidth());
frame.add(new TestTransparency(image2));
// Index Color Model.
BufferedImage image3 = ImageIO.read(new File("fbavatar.gif"));
IndexColorModel cm = (IndexColorModel)image3.getColorModel();
int size = cm.getMapSize();
System.out.println(size);
int[] cmap = new int[size];
rgb = null;
for (int i = 0 ; i < size ; i++) {
rgb = cm.getComponents(i, rgb, 0);
if (i == 102) {
System.out.printf("%d, R: %d, G: %d, B: %d, A: %d\n", rgb.length, rgb[0], rgb[1], rgb[2], rgb[3]);
int green = rgb[1];
int blue = rgb[2];
rgb[1] = blue;
rgb[2] = green;
}
int c = (rgb[3] << 24) | (rgb[0] << 16) | (rgb[1] << 8) | (rgb[2] << 0);
cmap[i] = c;
}
int bits = cm.getPixelSize();
int start = 0;
boolean hasAlpha = cm.hasAlpha();
int trans = cm.getTransparentPixel();
int transferType = cm.getTransferType();
IndexColorModel cm2 = new IndexColorModel(bits, size, cmap, start, hasAlpha, trans, transferType);
image3 = new BufferedImage(cm2, (WritableRaster)image3.getData(), false, null);
frame.add(new TestTransparency(image3));
// RGB Filter.
BufferedImage image4 = ImageIO.read(new File("fbavatar.gif"));
RGBImageFilter filter = new RGBImageFilter() {
/** {@inheritDoc}
*/
@Override public int filterRGB(int x, int y, int rgb) {
int a = (rgb >> 24) & 0xFF;
int r = (rgb >> 16) & 0xFF;
int g = (rgb >> 8) & 0xFF;
int b = (rgb >> 0) & 0xFF;
if ((g == 24) && (b == 181)) {
rgb = (a << 24) | (r << 16) | (b << 8) | (g << 0);
}
return rgb;
}
};
FilteredImageSource filteredSrc = new FilteredImageSource(image4.getSource(), filter);
// Create the filtered image
Image image5 = Toolkit.getDefaultToolkit().createImage(filteredSrc);
frame.add(new TestTransparency(image5));
}
catch (Exception e) {
e.printStackTrace();
}
frame.setVisible(true);
frame.pack();
}
});
}
} |
