com.google.zxing.qrcode.decoder.QRCodeDecoderMetaData Maven / Gradle / Ivy
/*
* Copyright 2013 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.qrcode.decoder;
import com.google.zxing.ResultPoint;
/**
* Meta-data container for QR Code decoding. Instances of this class may be used to convey information back to the
* decoding caller. Callers are expected to process this.
*
* @see com.google.zxing.common.DecoderResult#getOther()
*/
public final class QRCodeDecoderMetaData {
private final boolean mirrored;
QRCodeDecoderMetaData(boolean mirrored) {
this.mirrored = mirrored;
}
/**
* @return true if the QR Code was mirrored.
*/
public boolean isMirrored() {
return mirrored;
}
/**
* Apply the result points' order correction due to mirroring.
*
* @param points Array of points to apply mirror correction to.
*/
public void applyMirroredCorrection(ResultPoint[] points) {
if (!mirrored || points == null || points.length < 3) {
return;
}
ResultPoint bottomLeft = points[0];
points[0] = points[2];
points[2] = bottomLeft;
// No need to 'fix' top-left and alignment pattern.
}
}