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* [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses) With permission of the Facebook Open Source team, we are simplifying the Texture license so that clients can rely on the Apache 2 terms that most of Texture is already covered by. This means that code originally forked from AsyncDisplayKit will be re-licensed from "BSD 3-clause + PATENTS v2" to Apache 2 without a PATENTS file. After getting confirmation that the updates to these core files look good, we'll propagate this new license header to all files (in this same PR) and get sign-off from all parties before landing. * [License] Update all Texture source files to be pure Apache 2. * Changelog entry for Apache 2 license update. * Revert "[License] Update all Texture source files to be pure Apache 2." This reverts commit ffa0fbbba9717d871dd16c4b07539f2f8208fc2b. * [License] Update all Texture source files to be pure Apache 2, maintaining copyrights. * [License] Update CONTRIBUTING, README, Podspec & Dangerfile.
72 lines
2.3 KiB
Objective-C
72 lines
2.3 KiB
Objective-C
//
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// ASTextKitShadower.h
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <UIKit/UIKit.h>
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#import <AsyncDisplayKit/ASBaseDefines.h>
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/**
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* @abstract an immutable class for calculating shadow padding drawing a shadowed background for text
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*/
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AS_SUBCLASSING_RESTRICTED
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@interface ASTextKitShadower : NSObject
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+ (ASTextKitShadower *)shadowerWithShadowOffset:(CGSize)shadowOffset
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shadowColor:(UIColor *)shadowColor
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shadowOpacity:(CGFloat)shadowOpacity
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shadowRadius:(CGFloat)shadowRadius;
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/**
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* @abstract The offset from the top-left corner at which the shadow starts.
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* @discussion A positive width will move the shadow to the right.
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* A positive height will move the shadow downwards.
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*/
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@property (nonatomic, readonly) CGSize shadowOffset;
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//! CGColor in which the shadow is drawn
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@property (nonatomic, copy, readonly) UIColor *shadowColor;
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//! Alpha of the shadow
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@property (nonatomic, readonly) CGFloat shadowOpacity;
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//! Radius, in pixels
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@property (nonatomic, readonly) CGFloat shadowRadius;
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/**
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* @abstract The edge insets which represent shadow padding
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* @discussion Each edge inset is less than or equal to zero.
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*
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* Example:
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* CGRect boundsWithoutShadowPadding; // Large enough to fit text, not large enough to fit the shadow as well
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* UIEdgeInsets shadowPadding = [shadower shadowPadding];
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* CGRect boundsWithShadowPadding = UIEdgeInsetsRect(boundsWithoutShadowPadding, shadowPadding);
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*/
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- (UIEdgeInsets)shadowPadding;
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- (CGSize)insetSizeWithConstrainedSize:(CGSize)constrainedSize;
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- (CGRect)insetRectWithConstrainedRect:(CGRect)constrainedRect;
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- (CGSize)outsetSizeWithInsetSize:(CGSize)insetSize;
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- (CGRect)outsetRectWithInsetRect:(CGRect)insetRect;
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- (CGRect)offsetRectWithInternalRect:(CGRect)internalRect;
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- (CGPoint)offsetPointWithInternalPoint:(CGPoint)internalPoint;
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- (CGPoint)offsetPointWithExternalPoint:(CGPoint)externalPoint;
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/**
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* @abstract draws the shadow for text in the provided CGContext
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* @discussion Call within the text node's +drawRect method
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*/
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- (void)setShadowInContext:(CGContextRef)context;
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@end
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