com.google.zxing.oned.UPCAWriter Maven / Gradle / Ivy
/*
* Copyright 2010 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.zxing.oned;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.Writer;
import com.google.zxing.common.BitMatrix;
import java.util.Map;
/**
* This object renders a UPC-A code as a {@link BitMatrix}.
*
* @author [email protected] (Andrew Walbran)
*/
public final class UPCAWriter implements Writer {
private final EAN13Writer subWriter = new EAN13Writer();
@Override
public BitMatrix encode(String contents, BarcodeFormat format, int width, int height) {
return encode(contents, format, width, height, null);
}
@Override
public BitMatrix encode(String contents,
BarcodeFormat format,
int width,
int height,
Map hints) {
if (format != BarcodeFormat.UPC_A) {
throw new IllegalArgumentException("Can only encode UPC-A, but got " + format);
}
// Transform a UPC-A code into the equivalent EAN-13 code and write it that way
return subWriter.encode('0' + contents, BarcodeFormat.EAN_13, width, height, hints);
}
}