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Hi,

simple question and hopefully a simple solution:
How can i convert an java.awt.Image into a BufferedImage?

Thanks

Martin

"Martin Thomas" <hiwimll7-remove-this-> wrote in message
news:40bdd448$...
> Hi,
>
> simple question and hopefully a simple solution:
> How can i convert an java.awt.Image into a BufferedImage?
>

Chances are it already is!

BufferedImage is the single concrete subclass of Image (in current 1.4.2
API).

cast it to BufferedImage in a safe manner.

Other possibility is a VolatileImage from which you can get a BufferedImage
with getSnapshot().

--
Mike W

Martin Thomas wrote:
> Hi,
>
> simple question and hopefully a simple solution:
> How can i convert an java.awt.Image into a BufferedImage?

If you are lucky, a cast will do. If not, if you really have an unknown
Image subclass, well it's not fun:

* Get the Image's consumer with Image.getSource().

* Use a PixelGrabber to read the image data from the consumer into some
pixel array

* Create a DataBufferInt from the pixel data

* Create a WritableRaster using the DataBufferInt

* Create a BufferedImage using the WritableRaster

* curse, wait, curse, wait, curse, curse, curse


There might be better ways.

/Thomas

> Hi,
>
> simple question and hopefully a simple solution:
> How can i convert an java.awt.Image into a BufferedImage?

If it is not already a BufferedImage (check with instanceof)
you can create a new BufferedImage with the same size,
and bufferedImage.getGraphics().drawImage(image, 0 , 0, null);

However I don't know what can possibly happen
if image si not yet fully loaded/decoded.

Adam

Tanks to all of you for your answers, very helpful suggetions out here!


Martin

[Ex1991]

Originally Posted by Thomas Weidenfeller

Martin Thomas wrote:[color=blue]

* Use a PixelGrabber to read the image data from the consumer into some
pixel array

* Create a DataBufferInt from the pixel data

* Create a WritableRaster using the DataBufferInt

* Create a BufferedImage using the WritableRaster

* curse, wait, curse, wait, curse, curse, curse


There might be better ways.

/Thomas

This is great, but how do I do this, I need to resize an image for my HighSchools project and I have tried many methods, but how do you do this?

[javaNewbie]

Originally Posted by Thomas Weidenfeller

Martin Thomas wrote:[color=blue]

* Get the Image's consumer with Image.getSource().

* Use a PixelGrabber to read the image data from the consumer into some
pixel array

* Create a DataBufferInt from the pixel data

* Create a WritableRaster using the DataBufferInt

* Create a BufferedImage using the WritableRaster

* curse, wait, curse, wait, curse, curse, curse


There might be better ways.

/Thomas

Thanks. That worked!