ZXingObjC/client/ZXCapture.h

/*
 * Copyright 2012 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.
 */

#include <QuartzCore/QuartzCore.h>
#import "ZXCaptureDelegate.h"

@protocol ZXReader;
@class ZXDecodeHints;

#if !TARGET_IPHONE_SIMULATOR
#if TARGET_OS_EMBEDDED
#include <AVFoundation/AVFoundation.h>
#define ZX(x) x
#define ZXAV(x) x
#define ZXAVC(x) ,x
#define ZXQT(x)
#define ZXCaptureSession AVCaptureSession
#define ZXCaptureVideoPreviewLayer AVCaptureVideoPreviewLayer
#define ZXCaptureDevice AVCaptureDevice
#define ZXCaptureDeviceInput AVCaptureDeviceInput
#define ZXCaptureVideoOutput AVCaptureVideoDataOutput
#else
#import <QTKit/QTKit.h>
#define ZX(x) x
#define ZXAV(x)
#define ZXAVC(x)
#define ZXQT(x) x
#define ZXCaptureSession QTCaptureSession
#define ZXCaptureVideoPreviewLayer QTCaptureLayer
#define ZXCaptureDevice QTCaptureDevice
#define ZXCaptureDeviceInput QTCaptureDeviceInput
#define ZXCaptureVideoOutput QTCaptureDecompressedVideoOutput
#endif

@interface ZXCapture
  : NSObject
ZX(<CAAction ZXAVC(AVCaptureVideoDataOutputSampleBufferDelegate)>) {
  ZX(
    ZXCaptureSession *session;
    ZXCaptureVideoPreviewLayer *layer;
    ZXCaptureDevice *capture_device;
    ZXCaptureDeviceInput *input;
    ZXCaptureVideoOutput *output;
    )
    
  int order_in_skip;
  int order_out_skip;
  BOOL running;
  BOOL on_screen;
  CALayer *luminance;
  CALayer *binary;
  size_t width;
  size_t height;
  size_t reported_width;
  size_t reported_height;
  NSString *captureToFilename;
  BOOL hard_stop;
  int camera;
  BOOL torch;
  BOOL mirror;
  int capture_device_index;
  CGAffineTransform transform;
  BOOL cameraIsReady;
}

@property (nonatomic, weak) id<ZXCaptureDelegate> delegate;
@property (nonatomic, copy) NSString *captureToFilename;
@property (nonatomic) CGAffineTransform transform;
@property (nonatomic, readonly) ZXCaptureVideoOutput *output;
@property (nonatomic, readonly) CALayer *layer;
@property (nonatomic, retain) ZXCaptureDevice *captureDevice;
@property (nonatomic, assign) BOOL mirror;
@property (nonatomic, readonly) BOOL running;
@property (nonatomic, retain) id<ZXReader> reader;
@property (nonatomic, retain) ZXDecodeHints *hints;
@property (nonatomic, assign) CGFloat rotation;

- (id)init;
- (CALayer *)luminance;
- (void)setLuminance:(BOOL)on_off;
- (CALayer *)binary;
- (void)setBinary:(BOOL)on_off;
- (void)start;

// Nest Labs addition:
- (void)stopAndFreezeOutput:(BOOL)freezeOutput;

- (void)stop;
- (void)hard_stop;
- (void)order_skip;

@property (nonatomic, readonly) BOOL hasFront;
@property (nonatomic, readonly) BOOL hasBack;
@property (nonatomic, readonly) BOOL hasTorch;

@property (nonatomic, readonly) int front;
@property (nonatomic, readonly) int back;

@property (nonatomic) int camera;
@property (nonatomic) BOOL torch;

@end

#else

@interface ZXCapture : NSObject {
    // Nest Labs addition:
    // Prevents compilation errors on simulator    
    BOOL running;
}

@property (nonatomic,weak) id<ZXCaptureDelegate> delegate;
@property (nonatomic,copy) NSString *captureToFilename;
@property (nonatomic) CGAffineTransform transform;
@property (nonatomic, readonly) void *output;
@property (weak, nonatomic, readonly) CALayer *layer;
@property (nonatomic, strong) id<ZXReader> reader;
@property (nonatomic, strong) ZXDecodeHints *hints;
@property (nonatomic, assign) CGFloat rotation;

- (id)init;
- (CALayer *)luminance;
- (void)setLuminance:(BOOL)on_off;
- (CALayer *)binary;
- (void)setBinary:(BOOL)on_off;
- (void)start;
- (void)stop;

// Nest Labs addition:
- (void)stopAndFreezeOutput:(BOOL)freezeOutput;

- (void)hard_stop;
- (void)order_skip;

@property (nonatomic,readonly) BOOL hasFront;
@property (nonatomic,readonly) BOOL hasBack;
@property (nonatomic,readonly) BOOL hasTorch;

@property (nonatomic,readonly) int front;
@property (nonatomic,readonly) int back;

@property (nonatomic) int camera;
@property (nonatomic) BOOL torch;

@property (nonatomic, assign) BOOL mirror;

// Nest Labs addition:
// Prevents compilation errors on simulator
@property (nonatomic, readonly) BOOL running;

@end

#endif