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plantuml/src/net/sourceforge/plantuml/flashcode/FlashCodeUtilsZxing.java
2022-02-10 19:16:18 +01:00

76 lines
2.6 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2020, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.flashcode;
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.util.Hashtable;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import ext.plantuml.com.google.zxing.BarcodeFormat;
import ext.plantuml.com.google.zxing.EncodeHintType;
import ext.plantuml.com.google.zxing.client.j2se.MatrixToImageWriter;
import ext.plantuml.com.google.zxing.common.BitMatrix;
import ext.plantuml.com.google.zxing.qrcode.QRCodeWriter;
import ext.plantuml.com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import net.sourceforge.plantuml.Log;
public class FlashCodeUtilsZxing implements FlashCodeUtils {
private static final Lock lock = new ReentrantLock();
public BufferedImage exportFlashcode(String s, Color fore, Color back) {
if (lock.tryLock())
try {
final QRCodeWriter writer = new QRCodeWriter();
final Hashtable hints = new Hashtable();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
hints.put(EncodeHintType.CHARACTER_SET, "UTF8");
final int multiple = 1;
final BitMatrix bit = writer.encode(s, BarcodeFormat.QR_CODE, multiple, hints);
return MatrixToImageWriter.toBufferedImage(bit, fore.getRGB() | 0xFF000000, back.getRGB() | 0xFF000000);
} catch (Exception e) {
Log.debug("Cannot create qrcode " + e);
} finally {
lock.unlock();
}
return null;
}
}