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Build ChatListUI
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Ali
@@ -0,0 +1,313 @@
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#import "TGPhotoEntitiesContainerView.h"
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#import "TGPhotoPaintEntityView.h"
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#import "TGPhotoStickerEntityView.h"
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#import "TGPhotoTextEntityView.h"
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#import <LegacyComponents/TGPhotoEditorUtils.h>
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@interface TGPhotoEntitiesContainerView () <UIGestureRecognizerDelegate>
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{
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TGPhotoPaintEntityView *_currentView;
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UITapGestureRecognizer *_tapGestureRecognizer;
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}
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@end
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@implementation TGPhotoEntitiesContainerView
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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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_tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
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_tapGestureRecognizer.delegate = self;
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[self addGestureRecognizer:_tapGestureRecognizer];
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}
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return self;
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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 false;
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}
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- (void)handleTap:(UITapGestureRecognizer *)gestureRecognizer
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{
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CGPoint location = [gestureRecognizer locationInView:self];
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NSMutableArray *intersectedViews = [[NSMutableArray alloc] init];
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for (TGPhotoPaintEntityView *view in self.subviews)
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{
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if (![view isKindOfClass:[TGPhotoPaintEntityView class]])
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continue;
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if ([view pointInside:[view convertPoint:location fromView:self] withEvent:nil])
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[intersectedViews addObject:view];
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}
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TGPhotoPaintEntityView *result = nil;
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if (intersectedViews.count > 1)
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{
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__block TGPhotoPaintEntityView *subresult = nil;
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[intersectedViews enumerateObjectsWithOptions:NSEnumerationReverse usingBlock:^(TGPhotoPaintEntityView *view, __unused NSUInteger index, BOOL *stop)
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{
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if ([view precisePointInside:[view convertPoint:location fromView:self]])
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{
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subresult = view;
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*stop = true;
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}
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}];
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result = subresult ?: intersectedViews.lastObject;
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}
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else if (intersectedViews.count == 1)
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{
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result = intersectedViews.firstObject;
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}
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if (self.entitySelected != nil)
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self.entitySelected(result);
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}
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- (NSUInteger)entitiesCount
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{
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return MAX(0, (NSInteger)self.subviews.count - 1);
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}
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- (TGPhotoPaintEntityView *)viewForUUID:(NSInteger)uuid
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{
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for (TGPhotoPaintEntityView *view in self.subviews)
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{
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if (![view isKindOfClass:[TGPhotoPaintEntityView class]])
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continue;
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if (view.entityUUID == uuid)
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return view;
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}
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return nil;
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}
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- (void)removeViewWithUUID:(NSInteger)uuid
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{
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for (TGPhotoPaintEntityView *view in self.subviews)
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{
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if (![view isKindOfClass:[TGPhotoPaintEntityView class]])
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continue;
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if (view.entityUUID == uuid)
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{
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[view removeFromSuperview];
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if (self.entityRemoved != nil)
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self.entityRemoved(view);
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break;
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}
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}
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}
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- (void)removeAll
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{
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for (TGPhotoPaintEntityView *view in self.subviews)
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{
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if (![view isKindOfClass:[TGPhotoPaintEntityView class]])
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continue;
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[view removeFromSuperview];
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}
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}
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- (void)handlePinch:(UIPinchGestureRecognizer *)gestureRecognizer
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{
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CGPoint location = [gestureRecognizer locationInView:self];
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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 (_currentView != nil)
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return;
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_currentView = [self viewForLocation:location];
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}
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break;
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case UIGestureRecognizerStateChanged:
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{
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if (_currentView == nil)
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return;
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CGFloat scale = gestureRecognizer.scale;
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[_currentView scale:scale absolute:false];
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[gestureRecognizer setScale:1.0f];
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}
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break;
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case UIGestureRecognizerStateEnded:
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{
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_currentView = nil;
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}
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break;
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case UIGestureRecognizerStateCancelled:
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{
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_currentView = nil;
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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)handleRotate:(UIRotationGestureRecognizer *)gestureRecognizer
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{
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CGPoint location = [gestureRecognizer locationInView:self];
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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 (_currentView != nil)
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return;
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_currentView = [self viewForLocation:location];
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}
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break;
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case UIGestureRecognizerStateChanged:
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{
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if (_currentView == nil)
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return;
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CGFloat rotation = gestureRecognizer.rotation;
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[_currentView rotate:rotation absolute:false];
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[gestureRecognizer setRotation:0.0f];
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}
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break;
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case UIGestureRecognizerStateEnded:
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{
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}
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break;
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case UIGestureRecognizerStateCancelled:
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{
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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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- (TGPhotoPaintEntityView *)viewForLocation:(CGPoint)__unused location
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{
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for (TGPhotoPaintEntityView *view in self.subviews)
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{
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if (![view isKindOfClass:[TGPhotoPaintEntityView class]])
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continue;
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if (view.selectionView != nil)
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return view;
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}
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return nil;
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}
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- (UIImage *)imageInRect:(CGRect)rect background:(UIImage *)background
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{
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if (self.subviews.count < 2)
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return nil;
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UIGraphicsBeginImageContextWithOptions(CGSizeMake(rect.size.width, rect.size.height), false, 1.0f);
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CGContextRef context = UIGraphicsGetCurrentContext();
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CGRect bounds = CGRectMake(0, 0, rect.size.width, rect.size.height);
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[background drawInRect:bounds];
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for (TGPhotoPaintEntityView *view in self.subviews)
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{
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if (![view isKindOfClass:[TGPhotoPaintEntityView class]])
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continue;
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if ([view isKindOfClass:[TGPhotoStickerEntityView class]])
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{
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[self drawView:view inContext:context withBlock:^
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{
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TGPhotoStickerEntityView *stickerView = (TGPhotoStickerEntityView *)view;
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UIImage *image = stickerView.image;
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CGSize fittedSize = TGScaleToSize(image.size, view.bounds.size);
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CGContextTranslateCTM(context, view.bounds.size.width / 2.0f, view.bounds.size.height / 2.0f);
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if (stickerView.isMirrored)
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CGContextScaleCTM(context, -1, 1);
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[image drawInRect:CGRectMake(-fittedSize.width / 2.0f, -fittedSize.height / 2.0f, fittedSize.width, fittedSize.height)];
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}];
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}
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else if ([view isKindOfClass:[TGPhotoTextEntityView class]])
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{
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[self drawView:view inContext:context withBlock:^
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{
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[view drawViewHierarchyInRect:view.bounds afterScreenUpdates:false];
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}];
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}
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}
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UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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return image;
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}
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- (void)drawView:(UIView *)view inContext:(CGContextRef)context withBlock:(void (^)(void))block
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{
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CGContextSaveGState(context);
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CGContextTranslateCTM(context, view.center.x, view.center.y);
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CGContextConcatCTM(context, view.transform);
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CGContextTranslateCTM(context, -view.bounds.size.width / 2.0f, -view.bounds.size.height / 2.0f);
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block();
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CGContextRestoreGState(context);
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}
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- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event
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{
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bool pointInside = [super pointInside:point withEvent:event];
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if (!pointInside)
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{
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for (UIView *subview in self.subviews)
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{
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CGPoint convertedPoint = [self convertPoint:point toView:subview];
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if ([subview pointInside:convertedPoint withEvent:event])
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pointInside = true;
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}
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}
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return pointInside;
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}
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- (bool)isTrackingAnyEntityView
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{
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bool tracking = false;
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for (TGPhotoPaintEntityView *view in self.subviews)
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{
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if (![view isKindOfClass:[TGPhotoPaintEntityView class]])
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continue;
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if (view.isTracking)
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{
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tracking = true;
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break;
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}
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}
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return tracking;
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}
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@end
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