110 lines
3.3 KiB
Text
110 lines
3.3 KiB
Text
#include "QRCodeReaderBase.h"
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#import <UIKit/UIKit.h>
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#import <AVFoundation/AVFoundation.h>
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@interface QRCodeReaderImpl : UIViewController
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@end
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@interface QRCodeReaderImpl () <AVCaptureMetadataOutputObjectsDelegate>
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@property (nonatomic) QRCodeReader* qrCodeReader;
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@property (nonatomic, strong) AVCaptureSession *captureSession;
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@property (nonatomic, strong) AVCaptureVideoPreviewLayer *videoPreviewPlayer;
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@end
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@implementation QRCodeReaderImpl
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- (void)viewDidLoad {
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[super viewDidLoad];
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_captureSession = nil;
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}
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- (void)setQrCodeReader: (QRCodeReader*)value {
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_qrCodeReader = value;
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}
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- (BOOL)startReading {
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NSError *error;
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AVCaptureDevice *captureDevice = [AVCaptureDevice defaultDeviceWithMediaType: AVMediaTypeVideo];
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AVCaptureDeviceInput *deviceInput = [AVCaptureDeviceInput deviceInputWithDevice: captureDevice error: &error];
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if(!deviceInput) {
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NSLog(@"Error %@", error.localizedDescription);
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return NO;
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}
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_captureSession = [[AVCaptureSession alloc]init];
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[_captureSession addInput:deviceInput];
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AVCaptureMetadataOutput *capturedMetadataOutput = [[AVCaptureMetadataOutput alloc] init];
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[_captureSession addOutput:capturedMetadataOutput];
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dispatch_queue_t dispatchQueue;
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dispatchQueue = dispatch_queue_create("myQueue", NULL);
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[capturedMetadataOutput setMetadataObjectsDelegate: self queue: dispatchQueue];
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[capturedMetadataOutput setMetadataObjectTypes: [NSArray arrayWithObject:AVMetadataObjectTypeQRCode]];
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_videoPreviewPlayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession: _captureSession];
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CGFloat statusBarHeight = [UIApplication sharedApplication].statusBarFrame.size.height;
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QRect cameraRect = _qrCodeReader->cameraSize();
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CGRect cameraCGRect = CGRectMake(cameraRect.x(),
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cameraRect.y() + statusBarHeight,
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cameraRect.width(),
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cameraRect.height());
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[_videoPreviewPlayer setVideoGravity: AVLayerVideoGravityResizeAspectFill];
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[_videoPreviewPlayer setFrame: cameraCGRect];
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CALayer* layer = [UIApplication sharedApplication].keyWindow.layer;
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[layer addSublayer: _videoPreviewPlayer];
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[_captureSession startRunning];
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return YES;
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}
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- (void)stopReading {
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[_captureSession stopRunning];
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_captureSession = nil;
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[_videoPreviewPlayer removeFromSuperlayer];
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}
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- (void)captureOutput:(AVCaptureOutput *)output didOutputMetadataObjects:(NSArray<__kindof AVMetadataObject *> *)metadataObjects fromConnection:(AVCaptureConnection *)connection {
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if (metadataObjects != nil && metadataObjects.count > 0) {
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AVMetadataMachineReadableCodeObject *metadataObject = [metadataObjects objectAtIndex:0];
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if ([[metadataObject type] isEqualToString: AVMetadataObjectTypeQRCode]) {
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_qrCodeReader->emit codeReaded([metadataObject stringValue].UTF8String);
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}
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}
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}
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@end
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QRCodeReader::QRCodeReader() {
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m_qrCodeReader = [[QRCodeReaderImpl alloc] init];
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[m_qrCodeReader setQrCodeReader: this];
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}
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QRect QRCodeReader::cameraSize() {
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return m_cameraSize;
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}
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void QRCodeReader::setCameraSize(QRect value) {
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m_cameraSize = value;
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}
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void QRCodeReader::startReading() {
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[m_qrCodeReader startReading];
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}
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void QRCodeReader::stopReading() {
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[m_qrCodeReader stopReading];
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}
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