/*
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* Copyright 2012 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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#import "ZXAztecDecoder.h"
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#import "ZXAztecDetector.h"
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#import "ZXAztecDetectorResult.h"
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#import "ZXAztecReader.h"
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#import "ZXBinaryBitmap.h"
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#import "ZXDecodeHints.h"
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#import "ZXDecoderResult.h"
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#import "ZXReader.h"
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#import "ZXResult.h"
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#import "ZXResultPointCallback.h"
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@implementation ZXAztecReader
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- (ZXResult *)decode:(ZXBinaryBitmap *)image error:(NSError **)error {
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return [self decode:image hints:nil error:error];
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}
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- (ZXResult *)decode:(ZXBinaryBitmap *)image hints:(ZXDecodeHints *)hints error:(NSError **)error {
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ZXBitMatrix *matrix = [image blackMatrixWithError:error];
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if (!matrix) {
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return nil;
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}
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ZXAztecDetector *detector = [[ZXAztecDetector alloc] initWithImage:matrix];
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NSArray *points = nil;
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ZXDecoderResult *decoderResult = nil;
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ZXAztecDetectorResult *detectorResult = [detector detectWithMirror:NO error:error];
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if (detectorResult) {
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points = detectorResult.points;
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decoderResult = [[[ZXAztecDecoder alloc] init] decode:detectorResult error:error];
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}
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if (decoderResult == nil) {
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detectorResult = [detector detectWithMirror:YES error:nil];
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points = detectorResult.points;
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if (detectorResult) {
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decoderResult = [[[ZXAztecDecoder alloc] init] decode:detectorResult error:nil];
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}
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}
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if (!decoderResult) {
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return nil;
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}
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if (hints != nil) {
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id <ZXResultPointCallback> rpcb = hints.resultPointCallback;
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if (rpcb != nil) {
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for (ZXResultPoint *p in points) {
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[rpcb foundPossibleResultPoint:p];
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}
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}
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}
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ZXResult *result = [ZXResult resultWithText:decoderResult.text rawBytes:decoderResult.rawBytes resultPoints:points format:kBarcodeFormatAztec];
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NSMutableArray *byteSegments = decoderResult.byteSegments;
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if (byteSegments != nil) {
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[result putMetadata:kResultMetadataTypeByteSegments value:byteSegments];
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}
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NSString *ecLevel = decoderResult.ecLevel;
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if (ecLevel != nil) {
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[result putMetadata:kResultMetadataTypeErrorCorrectionLevel value:ecLevel];
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}
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return result;
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}
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- (void)reset {
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// do nothing
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}
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@end
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