rxing 0.4.11

A rust port of the zxing barcode library.
Documentation 
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/*
 * 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.
 */

use crate::Point;

/**
 * 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.DecoderRXingResult#getOther()
 */
pub struct QRCodeDecoderMetaData(bool);

impl QRCodeDecoderMetaData {
    pub fn new(mirrored: bool) -> Self {
        Self(mirrored)
    }

    /**
     * @return true if the QR Code was mirrored.
     */
    pub fn isMirrored(&self) -> bool {
        self.0
    }

    /**
     * Apply the result points' order correction due to mirroring.
     *
     * @param points Array of points to apply mirror correction to.
     */
    pub fn applyMirroredCorrection(&self, points: &mut [Point]) {
        if !self.0 || points.is_empty() || points.len() < 3 {
            return;
        }
        points.swap(0, 2);
        // No need to 'fix' top-left and alignment pattern.
    }
}