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git-subtree-dir: submodules/AsyncDisplayKit git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632 git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
78 lines
3.1 KiB
Objective-C
78 lines
3.1 KiB
Objective-C
//
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// ASTextLine.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 <CoreText/CoreText.h>
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#import <AsyncDisplayKit/ASTextAttribute.h>
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@class ASTextRunGlyphRange;
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NS_ASSUME_NONNULL_BEGIN
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/**
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A text line object wrapped `CTLineRef`, see `ASTextLayout` for more.
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*/
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@interface ASTextLine : NSObject
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+ (instancetype)lineWithCTLine:(CTLineRef)CTLine position:(CGPoint)position vertical:(BOOL)isVertical NS_RETURNS_RETAINED;
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@property (nonatomic) NSUInteger index; ///< line index
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@property (nonatomic) NSUInteger row; ///< line row
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@property (nullable, nonatomic) NSArray<NSArray<ASTextRunGlyphRange *> *> *verticalRotateRange; ///< Run rotate range
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@property (nonatomic, readonly) CTLineRef CTLine; ///< CoreText line
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@property (nonatomic, readonly) NSRange range; ///< string range
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@property (nonatomic, readonly) BOOL vertical; ///< vertical form
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@property (nonatomic, readonly) CGRect bounds; ///< bounds (ascent + descent)
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@property (nonatomic, readonly) CGSize size; ///< bounds.size
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@property (nonatomic, readonly) CGFloat width; ///< bounds.size.width
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@property (nonatomic, readonly) CGFloat height; ///< bounds.size.height
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@property (nonatomic, readonly) CGFloat top; ///< bounds.origin.y
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@property (nonatomic, readonly) CGFloat bottom; ///< bounds.origin.y + bounds.size.height
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@property (nonatomic, readonly) CGFloat left; ///< bounds.origin.x
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@property (nonatomic, readonly) CGFloat right; ///< bounds.origin.x + bounds.size.width
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@property (nonatomic) CGPoint position; ///< baseline position
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@property (nonatomic, readonly) CGFloat ascent; ///< line ascent
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@property (nonatomic, readonly) CGFloat descent; ///< line descent
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@property (nonatomic, readonly) CGFloat leading; ///< line leading
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@property (nonatomic, readonly) CGFloat lineWidth; ///< line width
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@property (nonatomic, readonly) CGFloat trailingWhitespaceWidth;
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@property (nullable, nonatomic, readonly) NSArray<ASTextAttachment *> *attachments; ///< ASTextAttachment
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@property (nullable, nonatomic, readonly) NSArray<NSValue *> *attachmentRanges; ///< NSRange(NSValue)
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@property (nullable, nonatomic, readonly) NSArray<NSValue *> *attachmentRects; ///< CGRect(NSValue)
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@end
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typedef NS_ENUM(NSUInteger, ASTextRunGlyphDrawMode) {
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/// No rotate.
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ASTextRunGlyphDrawModeHorizontal = 0,
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/// Rotate vertical for single glyph.
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ASTextRunGlyphDrawModeVerticalRotate = 1,
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/// Rotate vertical for single glyph, and move the glyph to a better position,
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/// such as fullwidth punctuation.
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ASTextRunGlyphDrawModeVerticalRotateMove = 2,
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};
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/**
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A range in CTRun, used for vertical form.
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*/
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@interface ASTextRunGlyphRange : NSObject
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@property (nonatomic) NSRange glyphRangeInRun;
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@property (nonatomic) ASTextRunGlyphDrawMode drawMode;
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+ (instancetype)rangeWithRange:(NSRange)range drawMode:(ASTextRunGlyphDrawMode)mode NS_RETURNS_RETAINED;
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@end
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NS_ASSUME_NONNULL_END
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