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javaimageswingjlabelmousemotionevent

Is it possible to add MouseMotionListener to BufferedImage?

I am developing an application that drag and scale image in Jpanel.

The image is stored inside a JLabel.

But when i am adding the MouseMotionListener to the panel, then whole window is dragging and when i am trying to add MouseMotionListener to I can't select the sides of image to scale it.

So can i directly add MouseMotionListener to BufferedImage?

With any component I add MouseMotionListener, it don't allow me to select sides of image. sides means all direction for to scale image.

Window :

        addMouseListener(handler);
        addMouseMotionListener(handler);

JLabel :

        label.addMouseListener(new MouseHandler());
        label.addMouseMotionListener(new MouseHandler());

Here MouseHandler is a class defined for various operation like mousePressed, mouseDragged, mouseMove, etc.

Any idea why it is behaving like that?

Solution

  • The BufferedImage is a class that supports general image manipulation. It can be used equally from interactive programs with a graphical user interface, and from non-interactive batch processing programs with no user interface. Having a mouse listener on something that is not used in a GUI does not make sense, so you can't add a MouseMotionListener to a BufferedImage.

    You should add the listener to the GUI component that is showing the image instead.