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69 lines
2.1 KiB
Rust
69 lines
2.1 KiB
Rust
/*
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* Copyright 2009 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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use crate::{
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common::BitMatrix,
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qrcode::detector::{Detector, QRCodeDetectorResult},
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DecodeHintType, DecodeHintValue, DecodingHintDictionary, Exceptions,
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};
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use super::MultiFinderPatternFinder;
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/**
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* <p>Encapsulates logic that can detect one or more QR Codes in an image, even if the QR Code
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* is rotated or skewed, or partially obscured.</p>
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*
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* @author Sean Owen
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* @author Hannes Erven
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*/
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pub struct MultiDetector<'a>(Detector<'a>);
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impl<'a> MultiDetector<'_> {
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pub fn new(image: &'a BitMatrix) -> MultiDetector<'a> {
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MultiDetector(Detector::new(image))
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}
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// private static final DetectorRXingResult[] EMPTY_DETECTOR_RESULTS = new DetectorRXingResult[0];
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pub fn detectMulti(
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&self,
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hints: &DecodingHintDictionary,
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) -> Result<Vec<QRCodeDetectorResult>, Exceptions> {
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let image = self.0.getImage();
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let resultPointCallback = if let Some(DecodeHintValue::NeedResultPointCallback(cb)) =
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hints.get(&DecodeHintType::NEED_RESULT_POINT_CALLBACK)
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{
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Some(cb.clone())
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} else {
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None
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};
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let mut finder = MultiFinderPatternFinder::new(image, resultPointCallback);
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let infos = finder.findMulti(hints)?;
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if infos.is_empty() {
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return Err(Exceptions::notFound);
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}
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let mut result = Vec::new();
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for info in infos {
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if let Ok(potential) = self.0.processFinderPatternInfo(info) {
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result.push(potential);
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}
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}
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Ok(result)
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}
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}
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