At 03:21 PM 6/8/99 -0300, you wrote:
>I want to save an image that appears in an JLabel component to a gif/jpeg
>file. Does anyone know a way to implement this?
>
I've used JPEGImageDecoder/Encoder (part of the com.sun.image.codec.jpeg.*
that ships with 1.2) like this:
Read JPEG (spacing, linewrap courtesy of cut&paste):
ImageIcon thumbnail = null;
File f = null;
Image img = null;
BufferedImage bufout = null;
...
try {
JPEGImageDecoder codedec = JPEGCodec.createJPEGDecoder(new
BufferedInputStream(
new FileInputStream(f.getPath())));
thumbnail = new
ImageIcon(codedec.decodeAsBufferedImage().getScaledInstance(150, -1,
Image.SCALE_DEFAULT));
}
catch (Throwable fnfe) {
System.out.println("JPEG read failed, error:"+fnfe);
}
Write JPEGs I've used something like:
...
int iw = thumbnail.getIconWidth();
int ih = thumbnail.getIconHeight();
bufout = new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB);
img = thumbnail.getImage();
Graphics2D big = bufout.createGraphics();
big.drawImage(img,0,0,this);
JPEGImageEncoder codeenc = JPEGCodec.createJPEGEncoder(new
BufferedOutputStream(
new FileInputStream(f.getPath())));
codeenc.encode(bufout);
Probably are other ways.... Hope this helps.
Chris
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