/** Open a file and load the image. */
public void openFile() {
JFileChooser chooser = new JFileChooser();
chooser.setCurrentDirectory(new File("."));
String[] extensions = ImageIO.getReaderFileSuffixes();
chooser.setFileFilter(new FileNameExtensionFilter("Image files", extensions));
int r = chooser.showOpenDialog(this);
if (r != JFileChooser.APPROVE_OPTION) return;
try {
Image img = ImageIO.read(chooser.getSelectedFile());
image =
new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
image.getGraphics().drawImage(img, 0, 0, null);
} catch (IOException e) {
JOptionPane.showMessageDialog(this, e);
}
repaint();
}
