[seam-issues] [JBoss JIRA] Updated: (JBSEAM-4633) Apply/decorate graphicImage with rounded corners

[Marek Novotny (JIRA)]

     [ https://jira.jboss.org/browse/JBSEAM-4633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marek Novotny updated JBSEAM-4633:
----------------------------------

    Fix Version/s:     (was: 2.2.1.CR2)


> Apply/decorate graphicImage with rounded corners
> ------------------------------------------------
>
>                 Key: JBSEAM-4633
>                 URL: https://jira.jboss.org/browse/JBSEAM-4633
>             Project: Seam
>          Issue Type: Feature Request
>          Components: JSF Controls
>            Reporter: Kasper Sørensen
>            Priority: Minor
>             Fix For: The future
>
>
> It would be great with a graphic image transformation that adds rounded corners to an image. Most JavaScript libraries can add rounded corners to DIV-elements and more, but not IMG-elements. This is why it would be great to perform such rounding of edges on the server side.
> I've implemented this feature using this code:
> {code}
> 	@Override
> 	public void applyTransform(Image image) throws IOException {
> 		Integer height = image.getHeight();
> 		Integer width = image.getWidth();
> 		BufferedImage sourceImage = image.getBufferedImage();
> 		BufferedImage targetImage;
> 		Graphics2D graphics;
> 		if (image.getContentType() == Type.IMAGE_JPEG) {
> 			targetImage = new BufferedImage(width, height,
> 					BufferedImage.TYPE_INT_RGB);
> 			graphics = targetImage.createGraphics();
> 			graphics.setBackground(Color.WHITE);
> 		} else {
> 			// transparent background if supported
> 			targetImage = sourceImage.createGraphics().getDeviceConfiguration()
> 					.createCompatibleImage(width, height, Transparency.BITMASK);
> 			graphics = targetImage.createGraphics();
> 			graphics.setBackground(new Color(0, 0, 0, 0));
> 		}
> 		graphics.clearRect(0, 0, width, height);
> 		RoundRectangle2D.Float roundedRectangle = new RoundRectangle2D.Float(0,
> 				0, width, height, radius, radius);
> 		graphics.setClip(roundedRectangle);
> 		graphics.drawImage(sourceImage, 0, 0, null);
> 		graphics.dispose();
> 		image.setBufferedImage(targetImage);
> 	}
> 	private Integer radius = 20;
> 	public void setRadius(Integer radius) {
> 		this.radius = radius;
> 	}
> 	public Integer getRadius() {
> 		return radius;
> 	}
> 	@Override
> 	public Object saveState(FacesContext context) {
> 		Object[] state = new Object[2];
> 		state[0] = super.saveState(context);
> 		state[1] = radius;
> 		return state;
> 	}
> 	@Override
> 	public void restoreState(FacesContext context, Object state) {
> 		Object[] states = (Object[]) state;
> 		super.restoreState(context, states[0]);
> 		radius = (Integer) states[1];
> 	}
> {code}

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