Alternative to toSvgString

[Erik Vesterlund]

Hi, what do you suggest to use as an alternative to QrCode#toSvgString? (removed in release 1.7, 6cd17bb)

Thanks.

[Nayuki]

Copy the implementation in the demo into your own application. Consider the code snippet as public domain, no need to credit.

QR-Code-generator/java/QrCodeGeneratorDemo.java

Lines 216 to 254 in 22fac31

 	/** 
 	 * Returns a string of SVG code for an image depicting the specified QR Code, with the specified 
 	 * number of border modules. The string always uses Unix newlines (\n), regardless of the platform. 
 	 * @param qr the QR Code to render (not {@code null}) 
 	 * @param border the number of border modules to add, which must be non-negative 
 	 * @param lightColor the color to use for light modules, in any format supported by CSS, not {@code null} 
 	 * @param darkColor the color to use for dark modules, in any format supported by CSS, not {@code null} 
 	 * @return a string representing the QR Code as an SVG XML document 
 	 * @throws NullPointerException if any object is {@code null} 
 	 * @throws IllegalArgumentException if the border is negative 
 	 */ 
 	private static String toSvgString(QrCode qr, int border, String lightColor, String darkColor) { 
 		Objects.requireNonNull(qr); 
 		Objects.requireNonNull(lightColor); 
 		Objects.requireNonNull(darkColor); 
 		if (border < 0) 
 			throw new IllegalArgumentException("Border must be non-negative"); 
 		long brd = border; 
 		StringBuilder sb = new StringBuilder() 
 			.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n") 
 			.append("<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n") 
 			.append(String.format("<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" viewBox=\"0 0 %1$d %1$d\" stroke=\"none\">\n", 
 				qr.size + brd * 2)) 
 			.append("\t<rect width=\"100%\" height=\"100%\" fill=\"" + lightColor + "\"/>\n") 
 			.append("\t<path d=\""); 
 		for (int y = 0; y < qr.size; y++) { 
 			for (int x = 0; x < qr.size; x++) { 
 				if (qr.getModule(x, y)) { 
 					if (x != 0 || y != 0) 
 						sb.append(" "); 
 					sb.append(String.format("M%d,%dh1v1h-1z", x + brd, y + brd)); 
 				} 
 			} 
 		} 
 		return sb 
 			.append("\" fill=\"" + darkColor + "\"/>\n") 
 			.append("</svg>\n") 
 			.toString(); 
 	}