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Build ChatListUI
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Ali
324
submodules/LegacyComponents/Sources/TGPhotoCropRotationView.m
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324
submodules/LegacyComponents/Sources/TGPhotoCropRotationView.m
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#import "TGPhotoCropRotationView.h"
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#import "LegacyComponentsInternal.h"
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#import "POPSpringAnimation.h"
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#import <LegacyComponents/TGPhotoEditorUtils.h>
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const CGFloat TGPhotoCropRotationViewMaximumAngle = 45;
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@interface TGPhotoCropRotationView () <UIGestureRecognizerDelegate>
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{
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UIImageView *_wheelView;
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UIImageView *_needleView;
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UILongPressGestureRecognizer *_pressGestureRecognizer;
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UIPanGestureRecognizer *_panGestureRecognizer;
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bool _animating;
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bool _beganInteraction;
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bool _endedInteraction;
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bool _isTracking;
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}
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@end
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@implementation TGPhotoCropRotationView
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- (instancetype)initWithFrame:(CGRect)frame
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{
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self = [super initWithFrame:frame];
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if (self != nil)
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{
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self.clipsToBounds = true;
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_wheelView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 400, 400)];
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_wheelView.alpha = 0.9f;
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_wheelView.image = TGComponentsImageNamed(@"PhotoEditorRotationWheel");
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[self addSubview:_wheelView];
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_needleView = [[UIImageView alloc] initWithFrame:CGRectZero];
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_needleView.alpha = 0.9f;
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_needleView.contentMode = UIViewContentModeCenter;
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_needleView.image = TGComponentsImageNamed(@"PhotoEditorRotationNeedle");
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[self addSubview:_needleView];
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_pressGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handlePress:)];
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_pressGestureRecognizer.minimumPressDuration = 0.1f;
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[self addGestureRecognizer:_pressGestureRecognizer];
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_panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
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_panGestureRecognizer.delegate = self;
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[self addGestureRecognizer:_panGestureRecognizer];
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}
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return self;
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}
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- (bool)isTracking
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{
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return _isTracking;
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}
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- (void)handlePress:(UILongPressGestureRecognizer *)gestureRecognizer
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{
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switch (gestureRecognizer.state)
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{
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case UIGestureRecognizerStateBegan:
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{
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if (_beganInteraction)
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return;
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_isTracking = true;
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if (self.didBeginChanging != nil)
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self.didBeginChanging();
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_endedInteraction = false;
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_beganInteraction = true;
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}
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break;
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case UIGestureRecognizerStateEnded:
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case UIGestureRecognizerStateCancelled:
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{
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_beganInteraction = false;
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if (_endedInteraction)
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return;
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_isTracking = false;
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if (self.didEndChanging != nil)
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self.didEndChanging();
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_endedInteraction = true;
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}
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break;
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default:
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break;
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}
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}
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- (void)handlePan:(UIPanGestureRecognizer *)gestureRecognizer
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{
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switch (gestureRecognizer.state)
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{
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case UIGestureRecognizerStateBegan:
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{
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if (_beganInteraction)
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return;
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_isTracking = true;
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if (self.didBeginChanging != nil)
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self.didBeginChanging();
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_endedInteraction = false;
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_beganInteraction = true;
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}
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break;
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case UIGestureRecognizerStateChanged:
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{
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CGFloat translation = 0;
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switch (self.interfaceOrientation)
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{
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case UIInterfaceOrientationLandscapeLeft:
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translation = [gestureRecognizer translationInView:self].y;
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break;
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case UIInterfaceOrientationLandscapeRight:
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translation = [gestureRecognizer translationInView:self].y * -1;
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break;
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default:
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translation = [gestureRecognizer translationInView:self].x;
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break;
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}
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CGFloat angleInDegrees = TGRadiansToDegrees(_angle);
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CGFloat newAngleInDegrees = MIN(TGPhotoCropRotationViewMaximumAngle, MAX(-TGPhotoCropRotationViewMaximumAngle, angleInDegrees - translation / (CGFloat)M_PI / 1.15f));
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if (ABS(newAngleInDegrees - angleInDegrees) > FLT_EPSILON)
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{
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_angle = TGDegreesToRadians(newAngleInDegrees);
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if (self.angleChanged != nil)
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self.angleChanged(_angle, false);
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[self setNeedsLayout];
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}
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[gestureRecognizer setTranslation:CGPointZero inView:self];
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}
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break;
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case UIGestureRecognizerStateEnded:
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case UIGestureRecognizerStateCancelled:
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{
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_beganInteraction = false;
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if (_endedInteraction)
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return;
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_isTracking = false;
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if (self.didEndChanging != nil)
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self.didEndChanging();
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_endedInteraction = true;
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}
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break;
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default:
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break;
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}
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}
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- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)__unused gestureRecognizer
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{
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bool shouldBegin = true;
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if (self.shouldBeginChanging != nil)
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shouldBegin = self.shouldBeginChanging();
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return !_animating && shouldBegin;
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}
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- (BOOL)gestureRecognizer:(UIGestureRecognizer *)__unused gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)__unused otherGestureRecognizer
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{
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return true;
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}
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- (void)resetAnimated:(bool)animated
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{
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if (animated)
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{
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_animating = true;
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POPSpringAnimation *animation = [POPSpringAnimation animation];
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POPAnimatableProperty *angleProperty = [POPAnimatableProperty propertyWithName:@"org.telegram.rotationAngle" initializer:^(POPMutableAnimatableProperty *prop)
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{
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prop.readBlock = ^(id obj, CGFloat values[])
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{
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values[0] = TGRadiansToDegrees([obj angle]);
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};
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prop.writeBlock = ^(id obj, const CGFloat values[])
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{
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[obj setAngle:TGDegreesToRadians(values[0])];
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};
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}];
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animation.property = angleProperty;
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animation.fromValue = @(TGRadiansToDegrees(self.angle));
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animation.toValue = @(0.0f);
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animation.springSpeed = 5;
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animation.springBounciness = 2;
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animation.completionBlock = ^(__unused POPAnimation *animation, __unused BOOL finished)
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{
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_animating = false;
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};
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[self pop_addAnimation:animation forKey:@"angle"];
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}
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else
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{
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[self setAngle:0.0f];
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}
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}
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- (void)setAngle:(CGFloat)angle
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{
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_angle = angle;
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[self setNeedsLayout];
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}
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- (void)setAngle:(CGFloat)angle animated:(bool)animated
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{
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if (ABS(angle - TGRadiansToDegrees(self.angle)) < FLT_EPSILON)
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return;
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if (animated)
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{
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_animating = true;
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if (self.didBeginChanging != nil)
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self.didBeginChanging();
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POPSpringAnimation *animation = [POPSpringAnimation animation];
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POPAnimatableProperty *angleProperty = [POPAnimatableProperty propertyWithName:@"org.telegram.rotationAngle" initializer:^(POPMutableAnimatableProperty *prop)
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{
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prop.readBlock = ^(id obj, CGFloat values[])
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{
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values[0] = TGRadiansToDegrees([obj angle]);
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};
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prop.writeBlock = ^(id obj, const CGFloat values[])
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{
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TGPhotoCropRotationView *view = (TGPhotoCropRotationView *)obj;
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[view setAngle:TGDegreesToRadians(values[0])];
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if (view.angleChanged != nil)
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view.angleChanged(view->_angle, false);
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};
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}];
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animation.property = angleProperty;
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animation.fromValue = @(TGRadiansToDegrees(self.angle));
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animation.toValue = @(angle);
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animation.springSpeed = 5;
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animation.springBounciness = 2;
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animation.completionBlock = ^(__unused POPAnimation *animation, __unused BOOL finished)
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{
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_animating = false;
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if (self.didEndChanging != nil)
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self.didEndChanging();
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};
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[self pop_addAnimation:animation forKey:@"angle"];
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}
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else
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{
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[self setAngle:angle];
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}
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}
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- (void)layoutSubviews
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{
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[UIView performWithoutAnimation:^
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{
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switch (self.interfaceOrientation)
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{
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case UIInterfaceOrientationLandscapeLeft:
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{
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_wheelView.image = TGComponentsImageNamed(@"PhotoEditorRotationWheelLeft");
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_wheelView.center = CGPointMake(52 + 200, self.frame.size.height / 2);
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_needleView.frame = CGRectMake(43, (self.frame.size.height - 10) / 2, 10, 10);
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_needleView.transform = CGAffineTransformMakeRotation((CGFloat)M_PI_2);
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}
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break;
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case UIInterfaceOrientationLandscapeRight:
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{
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_wheelView.image = TGComponentsImageNamed(@"PhotoEditorRotationWheelRight");
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_wheelView.center = CGPointMake(-152, self.frame.size.height / 2);
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_needleView.frame = CGRectMake(self.frame.size.width - 53, (self.frame.size.height - 10) / 2, 10, 10);
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_needleView.transform = CGAffineTransformMakeRotation(-(CGFloat)M_PI_2);
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}
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break;
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default:
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{
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_wheelView.image = TGComponentsImageNamed(@"PhotoEditorRotationWheel");
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_wheelView.center = CGPointMake(self.frame.size.width / 2, -152);
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_needleView.frame = CGRectMake((self.frame.size.width - 10) / 2, 47, 10, 10);
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_needleView.transform = CGAffineTransformIdentity;
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}
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break;
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}
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}];
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_wheelView.transform = CGAffineTransformMakeRotation(_angle);
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}
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@end
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