SVGUtils.java example

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gmf-tooling-master
/**
 * Copyright (c) 2008 Borland Software Corporation
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Dmitry Stadnik - initial API and implementation
 */
package org.eclipse.gmf.runtime.lite.svg;

import org.apache.batik.svggen.SVGColor;
import org.apache.batik.svggen.SVGGeneratorContext;
import org.apache.batik.svggen.SVGPaintDescriptor;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Display;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.css.CSSStyleDeclaration;
import org.w3c.dom.css.CSSValue;
import org.w3c.dom.css.RGBColor;
import org.w3c.dom.css.ViewCSS;
import org.w3c.dom.svg.SVGPaint;

public class SVGUtils {

	private SVGUtils() {
	}

	public static String toSVGColor(Document document, Color color) {
		java.awt.Color awtColor = new java.awt.Color(color.getRed(), color.getGreen(), color.getBlue());
		SVGGeneratorContext svgContext = SVGGeneratorContext.createDefault(document);
		SVGPaintDescriptor paint = SVGColor.toSVG(awtColor, svgContext);
		return paint.getPaintValue();
	}

	public static Color toSWTColor(Element element, String attributeName) {
		Document document = element.getOwnerDocument();
		ViewCSS viewCSS = (ViewCSS) document.getDocumentElement();
		CSSStyleDeclaration computedStyle = viewCSS.getComputedStyle(element, null);
		SVGPaint svgPaint = (SVGPaint) computedStyle.getPropertyCSSValue(attributeName);
		if (svgPaint.getPaintType() == SVGPaint.SVG_PAINTTYPE_RGBCOLOR) {
			RGBColor rgb = svgPaint.getRGBColor();
			float red = rgb.getRed().getFloatValue(CSSValue.CSS_PRIMITIVE_VALUE);
			float green = rgb.getGreen().getFloatValue(CSSValue.CSS_PRIMITIVE_VALUE);
			float blue = rgb.getBlue().getFloatValue(CSSValue.CSS_PRIMITIVE_VALUE);
			return new Color(Display.getCurrent(), (int) red, (int) green, (int) blue);
		}
		return null;
	}
}