//
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// ZXingWrapper.m
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//
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//
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// Created by lbxia on 15/1/6.
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// Copyright (c) 2015年 lbxia. All rights reserved.
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//
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#import "ZXingWrapper.h"
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#import "ZXingObjC.h"
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#import "LBXZXCaptureDelegate.h"
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#import "LBXZXCapture.h"
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typedef void(^blockScan)(ZXBarcodeFormat barcodeFormat,NSString *str,UIImage *scanImg);
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@interface ZXingWrapper() <LBXZXCaptureDelegate>
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@property (nonatomic, strong) LBXZXCapture *capture;
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@property (nonatomic,copy)blockScan block;
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@property (nonatomic, assign) BOOL bNeedScanResult;
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@end
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@implementation ZXingWrapper
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- (id)init
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{
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if ( self = [super init] )
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{
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self.capture = [[LBXZXCapture alloc] init];
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self.capture.camera = self.capture.back;
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self.capture.focusMode = AVCaptureFocusModeContinuousAutoFocus;
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self.capture.rotation = 90.0f;
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self.capture.delegate = self;
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}
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return self;
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}
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- (id)initWithPreView:(UIView*)preView block:(void(^)(ZXBarcodeFormat barcodeFormat,NSString *str,UIImage *scanImg))block
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{
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if (self = [super init]) {
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self.capture = [[LBXZXCapture alloc] init];
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self.capture.camera = self.capture.back;
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self.capture.focusMode = AVCaptureFocusModeContinuousAutoFocus;
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self.capture.rotation = 90.0f;
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self.capture.delegate = self;
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self.block = block;
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CGRect rect = preView.frame;
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rect.origin = CGPointZero;
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self.capture.layer.frame = rect;
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//[preView.layer addSublayer:self.capture.layer];
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[preView.layer insertSublayer:self.capture.layer atIndex:0];
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}
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return self;
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}
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- (void)setScanRect:(CGRect)scanRect
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{
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self.capture.scanRect = scanRect;
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}
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- (void)start
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{
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[self.capture start];
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self.bNeedScanResult = YES;
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}
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- (void)stop
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{
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self.bNeedScanResult = NO;
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[self.capture stop];
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}
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- (void)openTorch:(BOOL)on_off
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{
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[self.capture setTorch:on_off];
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}
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- (void)openOrCloseTorch
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{
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[self.capture changeTorch];
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}
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#pragma mark - ZXCaptureDelegate Methods
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- (void)captureResult:(ZXCapture *)capture result:(ZXResult *)result scanImage:(UIImage *)img {
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if (!result) return;
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if (!_bNeedScanResult) {
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return;
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}
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if ( _block )
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{
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[self stop];
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_block(result.barcodeFormat,result.text,img);
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}
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}
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+ (UIImage*)createCodeWithString:(NSString*)str size:(CGSize)size CodeFomart:(ZXBarcodeFormat)format
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{
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ZXMultiFormatWriter *writer = [[ZXMultiFormatWriter alloc] init];
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ZXBitMatrix *result = [writer encode:str
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format:format
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width:size.width
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height:size.width
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error:nil];
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if (result) {
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ZXImage *image = [ZXImage imageWithMatrix:result];
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return [UIImage imageWithCGImage:image.cgimage];
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} else {
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return nil;
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}
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}
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+ (void)recognizeImage:(UIImage*)image block:(void(^)(ZXBarcodeFormat barcodeFormat,NSString *str))block;
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{
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ZXCGImageLuminanceSource *source = [[ZXCGImageLuminanceSource alloc] initWithCGImage:image.CGImage];
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ZXHybridBinarizer *binarizer = [[ZXHybridBinarizer alloc] initWithSource: source];
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ZXBinaryBitmap *bitmap = [[ZXBinaryBitmap alloc] initWithBinarizer:binarizer];
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NSError *error;
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id<ZXReader> reader;
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if (NSClassFromString(@"ZXMultiFormatReader")) {
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reader = [NSClassFromString(@"ZXMultiFormatReader") performSelector:@selector(reader)];
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}
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ZXDecodeHints *_hints = [ZXDecodeHints hints];
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ZXResult *result = [reader decode:bitmap hints:_hints error:&error];
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if (result == nil) {
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block(kBarcodeFormatQRCode,nil);
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return;
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}
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block(result.barcodeFormat,result.text);
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}
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@end
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