Discussion :

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Bonjour, pourquoi est-ce que mon programme ne sauvegarde pas les images? Le but de mon programme est de pouvoir ouvrir, sauvegarder et dessiner des formes.

Voici mon code Java:

Code :

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import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
 
import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.filechooser.FileFilter;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.filechooser.FileSystemView;
 
public class Rectangles extends JFrame implements ActionListener
{
    int choice = 0;
 
    private static final int BI_WIDTH = 500;
    private static final int BI_HEIGHT = BI_WIDTH;
    private static BufferedImage bImage = new BufferedImage(BI_WIDTH, BI_HEIGHT, BufferedImage.TYPE_INT_ARGB); //Enregistrement de l'image en RGBA
    JButton square = new JButton("Square");
    JButton rectangle = new JButton("Rectangle");
    JButton circle = new JButton("Circle");
    JButton open= new JButton ("Open");
    JButton save= new JButton ("Save");
 
    Drawing draw = new Drawing();
    JLabel label = new JLabel();
 
 
    JPanel panel = new JPanel();
 
    public Rectangles()
    {
        JFrame frame = new JFrame("Draw Shapes");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        square.addActionListener(this);
        rectangle.addActionListener(this);
        circle.addActionListener(this);
        open.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e) {
 
                JFileChooser file = new JFileChooser();
                file.setCurrentDirectory(new File(System.getProperty("user.home")));
                //filter the files
                FileNameExtensionFilter filter = new FileNameExtensionFilter("*.Images", "jpg","gif","png");
                file.addChoosableFileFilter(filter);
                int result = file.showOpenDialog(null);
                if(result == JFileChooser.APPROVE_OPTION){
                    File selectedFile= file.getSelectedFile();
                    String path = selectedFile.getAbsolutePath();
                    label.setIcon(ResizeImage(path));
                }
 
                else if(result == JFileChooser.CANCEL_OPTION){
                    System.out.println("No File Select");
                }
            }
        });
 
        save.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e) {
 
                JFileChooser filechooser = new JFileChooser();
                FileNameExtensionFilter filter = new FileNameExtensionFilter("PNG Images", "png");
                filechooser.setFileFilter(filter);
                int result = filechooser.showSaveDialog(null);
                if (result == JFileChooser.APPROVE_OPTION) {
                    File saveFile = filechooser.getSelectedFile();
                    Graphics g2 = bImage.createGraphics();
                    paint(g2);
                    try {
 
                        ImageIO.write(bImage, "png", saveFile);
                    } catch (IOException e1 ) {
                        e1.printStackTrace();
                    }
                }
            }
        });
 
 
        panel.add(square);
        panel.add(rectangle);
        panel.add(circle);
        panel.add(open);
        panel.add(save);
        panel.add(label);
        panel.add(draw);
        frame.add(panel, "North");
        frame.add(draw);
        frame.setSize(500,500);
        frame.setVisible(true);
        frame.add(label);
 
    }
    public ImageIcon ResizeImage(String ImagePath)
    {
        ImageIcon MyImage = new ImageIcon(ImagePath);
        Image img = MyImage.getImage();
        Image newImg = img.getScaledInstance(label.getWidth(), label.getHeight(), Image.SCALE_SMOOTH);
        ImageIcon image = new ImageIcon(newImg);
        return image;
    }
    public void actionPerformed(ActionEvent e)
    {
 
        if (e.getSource()== square)
            choice = 1;
        else if (e.getSource()== rectangle)
            choice = 2;
        else if (e.getSource()== circle)
            choice = 3;
        draw.repaint();
 
    }
 
    class Drawing extends JComponent
    {
        public void paint(Graphics g)
        {
            super.paintComponent(g);
            g.setColor(Color.red);
            if (choice == 1)
                g.fillRect(100,80,300,300);
            else if (choice == 2)
                g.fillRect(50,200,350,100);
            else if (choice == 3)
                g.fillOval(150,100,200,200);
 
 
        }
 
    }
 
 
    public static void main(String[] args)
    {
        new Rectangles();
    }
 
 
}