JInternalFrame repainting issue

Question

Below code is my view where I get display a streaming camera. Controller handles sets the image and repaints the JInternalFrame. I have an issue with this because the camera image covers the whole JInternalFrame even the title bar. I tried using JPanel but I had problems getting the image on the JPanel because I extend JInternalFrame.

public class CameraView extends JInternalFrame{

    private BufferedImage image;

    public CameraView(){
        super("Camera", false,false,false, false);

        setSize(500,500);
        setLocation(200,200);

    }

    @Override
    public void paint(Graphics g){
        g.drawImage(image, 0, 0, null);
    }


   public void setImage(BufferedImage image){
       this.image = image;
   }
}

This is what it looks like. No title bar.

Answer 1

You're overriding the paint method of the frame. This paint method is what draws the title bar.

You should create a second class that extends JComponent, override the paint method on that class, and then add an instance of it to your frame.

Something like:

public class CameraView extends JInternalFrame{

    private BufferedImage image;

    public CameraView(){
        super("Camera", false,false,false, false);

        setLocation(200,200);

        add(new JComponent() {

            {
                setSize(500, 500); // size of the image
            }

            @Override
            public void paint(Graphics g){
                g.drawImage(image, 0, 0, null);
            }

        });

        pack();
    }

   public void setImage(BufferedImage image){
       this.image = image;
   }
}

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You could also have the paint method call super.paint(g); but the way you have it set up now, your image will overlay the title bar.

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Also, calling super("Camera", false,false,false, false); is the same as calling super("Camera"). The defaults are false.