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| public class ColorizeImage {
private static BufferedImage currentImage;
private static Color currentColor;
public static void main(String[] args) {
JPanel panel = new JPanel(new BorderLayout());
panel.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
JPanel buttonPanel = new JPanel(new GridBagLayout());
JButton fileButton = new JButton("Choisir fichier");
buttonPanel.add(fileButton);
panel.add(buttonPanel, BorderLayout.NORTH);
JPanel imagePanel = new JPanel(new GridBagLayout());
Dimension imageSize = new Dimension(300,300);
imagePanel.setPreferredSize(imageSize);
imagePanel.setMaximumSize(imageSize);
imagePanel.setMinimumSize(imageSize);
JLabel imageLabel = new JLabel();
imagePanel.add(imageLabel);
panel.add(imagePanel,BorderLayout.CENTER);
JPanel colorPanel = new JPanel(new GridLayout(0, 1, 5, 5));
ButtonGroup colorGroup = new ButtonGroup();
{
JRadioButton radio = new JRadioButton("Original");
colorPanel.add(radio);
colorGroup.add(radio);
radio.addActionListener(e->setColor(imageLabel,null));
}
Color[] colors = { Color.RED, Color.BLUE, Color.YELLOW, Color.PINK, Color.CYAN, Color.ORANGE, Color.GREEN, Color.WHITE };
String[] colorNames = { "Rouge", "Bleu", "Jaune", "Rose", "Ciel", "Orange", "Vert", "Blanc" };
for(int i=0; i<colors.length; i++) {
Color color = colors[i];
JRadioButton radio = new JRadioButton(colorNames[i]);
radio.setBackground(color);
colorPanel.add(radio);
colorGroup.add(radio);
radio.addActionListener(e->setColor(imageLabel,setAlpha(color,.35f)));
}
Collections.list(colorGroup.getElements()).stream().findFirst().get().setSelected(true);
fileButton.addActionListener(e->changeImage(imageLabel,colorGroup));
panel.add(colorPanel, BorderLayout.EAST);
JFrame frame = new JFrame("Colorize");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(panel);
frame.setSize(600, 600);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static Color setAlpha(Color color, float f) {
return new Color(color.getRed(), color.getGreen(), color.getBlue(), (int)(f*255));
}
private static void changeImage(JLabel imageLabel, ButtonGroup colorGroup) {
JFileChooser chooser = new JFileChooser();
chooser.setFileFilter(new FileFilter() {
@Override
public String getDescription() {
return "Fichiers JPG ou PNG";
}
@Override
public boolean accept(File f) {
return f.getName().toLowerCase().endsWith(".png") || f.getName().toLowerCase().endsWith(".jpg");
}
});
chooser.setDialogTitle("Choisir un fichier image");
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
chooser.setMultiSelectionEnabled(false);
int result = chooser.showOpenDialog(SwingUtilities.getRootPane(imageLabel));
if ( result==JFileChooser.APPROVE_OPTION ) {
try {
BufferedImage image = ImageIO.read(chooser.getSelectedFile());
currentImage = image;
setImage(imageLabel, image);
setColor(imageLabel, currentColor);
}
catch (Exception e) {
e.printStackTrace();
JOptionPane.showMessageDialog(SwingUtilities.getRootPane(imageLabel), "Erreur lors du chargement de l'image");
}
}
}
private static void setImage(JLabel imageLabel, BufferedImage image) {
ImageIcon icon = new ImageIcon(image);
imageLabel.setIcon(icon);
}
private static void setColor(JLabel imageLabel, Color color) {
currentColor=color;
if ( currentImage!=null ) {
if ( color==null ) {
setImage(imageLabel, currentImage);
}
else {
BufferedImage coloredImage = setColor(currentImage, color);
setImage(imageLabel, coloredImage);
}
}
}
private static BufferedImage setColor(BufferedImage image, Color color) {
int w = image.getWidth();
int h = image.getHeight();
BufferedImage img = new BufferedImage(w,h,BufferedImage.TYPE_INT_ARGB);
Graphics2D g = img.createGraphics();
g.drawImage(image, 0,0, null);
g.setComposite(AlphaComposite.SrcAtop);
g.setColor(color);
g.fillRect(0,0,w,h);
g.dispose();
return img;
}
} |
