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Load Image to JPanel


Load Image to JPanel

By : Ivan Luiz Iurck Benk
Date : November 15 2020, 06:54 AM
To fix this issue You draw the image back to itself (?) using a Graphics object derived from the Image itself. Instead store the image to a field, not a local variable, and draw that image within the JPanel's paintComponent method. Most important, have a look at the Swing graphics tutorials
code :
private BufferedImage img;

public void load(String path) throws IOException {
       img = ImageIO.read(new File(path));
       this.repaint();
}

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    if (img != null) {
        g.drawImage(img, 0, 0, null);
    }
}


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Load image in a JPanel?

Load image in a JPanel?


By : stNicolaas
Date : March 29 2020, 07:55 AM
I wish this helpful for you In your code you're missing a JFrame or JDialog to contain your JPanel in. Here's an example that I believe does what you're asking for. It loads the same image into a visible window and outputs the dimensions to the console.
code :
public class ImageTool extends JPanel {
    public ImageTool(URL url) {
        ImageIcon icon = new ImageIcon(url);
        JLabel label = new JLabel(icon, JLabel.CENTER);
        add(label);

        System.out.println("Image width: " + icon.getIconWidth());
        System.out.println("Image height: " + icon.getIconHeight());
    }

    public static void main(String[] args) throws MalformedURLException {
        URL url = new URL("http://www.java2s.com/style/logo.png");
        JPanel panel = new ImageTool(url);
        JFrame frame = new JFrame();
        frame.add(panel);
        frame.pack();
        frame.setVisible(true);
    }
}
How to load/save an Image from a JPanel

How to load/save an Image from a JPanel


By : Ahmad
Date : March 29 2020, 07:55 AM
wish help you to fix your issue You're question is missing some important information: how are you drawing things on the JPanel? In my opinion, the smart way would be to draw into a BufferedImage, and then simply save the BufferedImage to file using ImageIO.write(...)
Edit
How to load an image in JPanel?

How to load an image in JPanel?


By : Daniel Marohnic
Date : March 29 2020, 07:55 AM
it fixes the issue I have a PNG image and I want to use it as a brush.
code :
final Image image = new ImageIcon("C:/images/image.png").getImage();
JPanel panel = new JPanel() {
    @Override
    protected void paintComponent(Graphics g) {
        g.drawImage(imageToPaint, 
            (desired x location), (desired y location), null);
    }
};
Load an image into a JPanel in an applet

Load an image into a JPanel in an applet


By : ramsay
Date : March 29 2020, 07:55 AM
I wish this helpful for you base on this thread :Java: Load image from file, edit and add to JPanel i tried to load na image into a JPanel but its not painting it,so here s the deal, as suggested i have created a new class file named JImageComponent which extends from a JComponent, which looks like this : , After adding a new component to the container, you need to call
code :
jPanel6.revalidate();
jPanel6.repaint();
Image didn't load in JPanel

Image didn't load in JPanel


By : andy
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , You should avoid creating new objects everytime you want to display your image, imagine if you change it 5 times, you're creating 5 times an object while you display only one !
Like said in the comments, your best shot would be to create your label when you create your panel, add it to said panel, then simply change the icon of this label when you load your image.
code :
        browseBtn.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            JFileChooser fc = new JFileChooser();
            int result = fc.showOpenDialog(null);
            if (result == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();
                if (accept(file)) {
                    try {
                        ImageIcon image = new ImageIcon(file.getPath());
                        label.setIcon(image);
                    } catch (Exception ex) {
                        JOptionPane.showMessageDialog(this, "Error reading file !");
                    }
                }
                else {
                    JOptionPane.showMessageDialog(this, "Choose png file only !");
                } 
            }
        }

        public boolean accept(File file) {
            return file.isDirectory() || file.getAbsolutePath().endsWith(".png");
        }


    });
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