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			104 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Objective-C
		
	
			
		
		
	
	
			104 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Objective-C
		
	
| //
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| //  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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| //
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| 
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| #import "OWSBezierPathView.h"
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| 
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| NS_ASSUME_NONNULL_BEGIN
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| 
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| #pragma mark -
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| 
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| @implementation OWSBezierPathView
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| 
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| - (id)init
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| {
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|     self = [super init];
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|     if (self) {
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|         [self initCommon];
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|     }
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| 
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|     return self;
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| }
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| 
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| - (id)initWithFrame:(CGRect)frame
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| {
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|     self = [super initWithFrame:frame];
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|     if (self) {
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|         [self initCommon];
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|     }
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|     return self;
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| }
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| 
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| - (void)initCommon
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| {
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|     self.opaque = NO;
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|     self.userInteractionEnabled = NO;
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| }
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| 
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| - (void)setFrame:(CGRect)frame
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| {
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|     BOOL didChangeSize = !CGSizeEqualToSize(frame.size, self.frame.size);
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| 
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|     [super setFrame:frame];
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| 
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|     if (didChangeSize) {
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|         [self updateLayers];
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|     }
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| }
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| 
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| - (void)setBounds:(CGRect)bounds
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| {
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|     BOOL didChangeSize = !CGSizeEqualToSize(bounds.size, self.bounds.size);
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| 
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|     [super setBounds:bounds];
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| 
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|     if (didChangeSize) {
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|         [self updateLayers];
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|     }
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| }
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| 
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| - (void)setConfigureShapeLayerBlock:(ConfigureShapeLayerBlock)configureShapeLayerBlock
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| {
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|     OWSAssertDebug(configureShapeLayerBlock);
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| 
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|     [self setConfigureShapeLayerBlocks:@[ configureShapeLayerBlock ]];
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| }
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| 
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| - (void)setConfigureShapeLayerBlocks:(NSArray<ConfigureShapeLayerBlock> *)configureShapeLayerBlocks
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| {
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|     OWSAssertDebug(configureShapeLayerBlocks.count > 0);
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| 
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|     _configureShapeLayerBlocks = configureShapeLayerBlocks;
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| 
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|     [self updateLayers];
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| }
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| 
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| - (void)updateLayers
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| {
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|     if (self.bounds.size.width <= 0.f || self.bounds.size.height <= 0.f) {
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|         return;
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|     }
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| 
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|     for (CALayer *layer in self.layer.sublayers) {
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|         [layer removeFromSuperlayer];
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|     }
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| 
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|     // Prevent the shape layer from animating changes.
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|     [CATransaction begin];
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|     [CATransaction setDisableActions:YES];
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| 
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|     for (ConfigureShapeLayerBlock configureShapeLayerBlock in self.configureShapeLayerBlocks) {
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|         CAShapeLayer *shapeLayer = [CAShapeLayer new];
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|         configureShapeLayerBlock(shapeLayer, self.bounds);
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|         [self.layer addSublayer:shapeLayer];
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|     }
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| 
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|     [CATransaction commit];
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| 
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|     [self setNeedsDisplay];
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| }
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| 
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| @end
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| 
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| NS_ASSUME_NONNULL_END
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