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

[Kasper Sørensen (JIRA)]

Apply/decorate graphicImage with rounded corners
------------------------------------------------

                 Key: JBSEAM-4633
                 URL: https://jira.jboss.org/jira/browse/JBSEAM-4633
             Project: Seam
          Issue Type: Feature Request
          Components: JSF Controls
            Reporter: Kasper Sørensen
            Priority: Minor
             Fix For: 2.2.1.CR2, 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}

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira