Image Rendering

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2 total messages Started by David Hite Tue, 08 Feb 2005 11:03

#570

Author: David Hite
Date: Tue, 08 Feb 2005 11:03

8 lines
1213 bytes

Hi - does anyone know of a component that will display an image 
proportionally depending on the current size of the window (that is, 
dynamically resize the image as the user sets the size of the screen smaller 
or larger)? The behavior of Windows XP Explorer with the View set to 
"FilmStrip" (and viewing images) is an example of what I'm looking for.

TIA!
David Hite

Re: Image Rendering

#571

Author: John McGrath [TeamB]
Date: Tue, 08 Feb 2005 19:21

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2203 bytes

On 2/8/2005 at 6:03:47 AM, David Hite wrote:

> Hi - does anyone know of a component that will display an image 
> proportionally depending on the current size of the window (that is, 
> dynamically resize the image as the user sets the size of the screen
> smaller or larger)? The behavior of Windows XP Explorer with the View
> set to "FilmStrip" (and viewing images) is an example of what I'm
> looking for.

It would be very easy to write such a component.  Just extend JPanel and
override the paintComponent method to paint the image, specifying the
width and height.  Here is a rough (untested) stab at it:

   public void paintComponent( Graphics g ) {
      super.paintComponent( g );
      Dimension size = getSize();
      Insets insets = getInsets();
      int width = size.width - insets.left - insets.right;
      int height = size.height - insets.top - insets.bottom;
      g.drawImage( image, insets.left, insets.top, width, height, this );
   }

-- 
Regards,

John McGrath [TeamB]

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