Question

I’m using Java Swing to make a GUI.

I need to present to the user some information printed on images (which are generated at run time as BufferedImage objects).

What I am doing: I put a JPanel on my JFrame, and when the system calls the paint(Graphics g) method I draw the image on g -> (g.drawImage(buffImg,0,0,null)).

The thing I do not like is: When I resize the frame, the image remains the same, I only expand the field of view. I’d like instead to make the image “stretch” with the frame when I resize it.

Is there an efficient way of doing it? (I thought I could create a new resized image, the size of the frame, each time I refresh the graphics, but I’m updating the image several times per second, so it would be a really heavy task..)

Answer 1

Change:

g.drawImage(BuffImg,0,0,null):

To:

g.drawImage(BuffImg,0,0,getWidth(),getHeight(),this):