Hi Carsten,
Carsten Birn wrote:
I have discovered a problem when trying to store a GIF image using the
SVGGraphics2D context. I am calling the drawImage(BufferedImage, posX,
posY, ImageObserver) method.
I think you are actually calling:
drawImage(Image, posX, posY, ImageObserver)
This is an important distinction because an 'Image' loads
asynchronously so it may not be complete when you draw it. When
you draw to a AWT Component it will refresh it's self as the image
updates (like a web browser) - This is what the ImageObserver nonsense
is about. But when drawing to something like a BufferedImage (or in
this case the SVGGraphics2D) it's your responsibility to ensure that
the image is fully loaded - otherwise it renders what it has at the
moment.
You could look at using the MediaTracker Interface. Or there
is a little bit simpler interface in:
batik.ext.awt.image.spi.JDKRegistryEntry.MyImgObs.
I am only 90% certain this is the cause of the problem so I
would be interested to know if ensuring the image was fully
loaded does in fact solve the problem.
Perhaps a quicker way to check would be to add a sleep to
your code for a few sec - which should give it plenty of time
to load the image. The correct solution is to use some form
of ImageObserver (like MediaTracker).
When i have an Icon with 1 color(ore more)
Black + Transparency 15x16 (Created with GIMP) the result is a line
from top till bottom on the right side. (See Example)
I have supplied an example (Ground.gif) of the input and the result
(shown below).
When anyone has experienced similar problems or have a clue i would
appreciate it a lot.
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