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//
// SDLStreamingVideoScaleManager.m
// SmartDeviceLink
//
// Created by Nicole on 10/1/19.
// Copyright © 2019 smartdevicelink. All rights reserved.
//
#import "SDLStreamingVideoScaleManager.h"
#import "SDLOnTouchEvent.h"
#import "SDLRectangle.h"
#import "SDLTouchCoord.h"
#import "SDLTouchEvent.h"
#import "SDLHapticRect.h"
#import "SDLNotificationConstants.h"
NS_ASSUME_NONNULL_BEGIN
@interface SDLStreamingVideoScaleManager ()
@property (assign, nonatomic, readwrite) CGRect appViewportFrame;
@end
@implementation SDLStreamingVideoScaleManager
const float SDLDefaultScaleValue = 1.0;
CGSize const SDLDefaultDisplayViewportResolution = {0, 0};
- (instancetype)init {
return [[self.class alloc] initWithScale:SDLDefaultScaleValue displayViewportResolution:SDLDefaultDisplayViewportResolution];
}
- (void)stop {
self.displayViewportResolution = SDLDefaultDisplayViewportResolution;
self.scale = SDLDefaultScaleValue;
}
- (instancetype)initWithScale:(float)scale displayViewportResolution:(CGSize)displayViewportResolution {
self = [super init];
if (!self) {
return nil;
}
_scale = [self.class validateScale:scale];
_displayViewportResolution = displayViewportResolution;
return self;
}
- (SDLOnTouchEvent *)scaleTouchEventCoordinates:(SDLOnTouchEvent *)onTouchEvent {
if (self.scale <= SDLDefaultScaleValue) {
return onTouchEvent;
}
for (SDLTouchEvent *touchEvent in onTouchEvent.event) {
for (SDLTouchCoord *coord in touchEvent.coord) {
coord.x = @(coord.x.floatValue / self.scale);
coord.y = @(coord.y.floatValue / self.scale);
}
}
return onTouchEvent;
}
- (SDLHapticRect *)scaleHapticRect:(SDLHapticRect *)hapticRect {
hapticRect.rect.x = @(hapticRect.rect.x.floatValue * self.scale);
hapticRect.rect.y = @(hapticRect.rect.y.floatValue * self.scale);
hapticRect.rect.width = @(hapticRect.rect.width.floatValue * self.scale);
hapticRect.rect.height = @(hapticRect.rect.height.floatValue * self.scale);
return hapticRect;
}
#pragma mark - Getters and Setters
- (CGRect)appViewportFrame {
// Screen capture in the CarWindow API only works if the width and height are integer values
return CGRectMake(0, 0, roundf((float)self.displayViewportResolution.width / self.scale), roundf((float)self.displayViewportResolution.height / self.scale));
}
- (void)setScale:(float)scale {
_scale = [self.class validateScale:scale];
}
#pragma mark - Helpers
/**
Validates the scale value. Returns the default scale value for 1.0 if the scale value is less than 1.0
@param scale The scale value to be validated.
@return The validated scale value
*/
+ (float)validateScale:(float)scale {
return (scale > SDLDefaultScaleValue) ? scale : SDLDefaultScaleValue;
}
@end
NS_ASSUME_NONNULL_END
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