[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2616) <s:transformImageSize> fills transparent areas with white background
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https://jira.jboss.org/jira/browse/JBSEAM-2616?page=com.atlassian.jira.pl...
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Tony Herstell commented on JBSEAM-2616:
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Can the transform
also have a flag to NOT resize the image if it is already smaller than both of the
maxWidth or maxHeight
e.g.
dontUpScale="true"
otherwise you get small images streched up and they look awful.
<s:transformImageSize> fills transparent areas with white
background
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Key: JBSEAM-2616
URL: https://jira.jboss.org/jira/browse/JBSEAM-2616
Project: Seam
Issue Type: Bug
Components: JSF Controls
Affects Versions: 2.0.0.GA
Environment: Windows, Jboss 4.2.1, Facelets
Reporter: Manfred Griesser
Assignee: Pete Muir
Priority: Minor
Fix For: The future
if a png-image containing transparent areas is scaled, the transparent areas get filled
with white color.
I created my own transformImageSize-component which works properly.
Its applyTransformation method looks like that:
<code>
public void applyTransform(Image image) throws IOException {
...........
BufferedImage in = image.getBufferedImage();
GraphicsConfiguration gc = in.createGraphics().getDeviceConfiguration();
BufferedImage out = gc.createCompatibleImage(scaledWidth, scaledHeight,
Transparency.BITMASK);
Graphics2D g2d = out.createGraphics();
g2d.setComposite(AlphaComposite.Src);
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2d.drawImage(in, 0, 0, scaledWidth, scaledHeight, null);
g2d.dispose();
image.setBufferedImage(out);
}
</code>
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