fa499d299c
Added MPDisplayExtension Category to MPExpression and MPFunction Added Methods to Invalidate the Cache to MPExpressionLayout and MPFunctionLayout
58 lines
1.4 KiB
Objective-C
58 lines
1.4 KiB
Objective-C
//
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// MPFunctionLayout.h
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// MathPad
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//
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// Created by Kim Wittenburg on 22.04.14.
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// Copyright (c) 2014 Kim Wittenburg. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@class MPFunctionLayout, MPExpressionLayout, MPExpressionStorage, MPFunction;
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@interface MPFunctionLayout : NSObject {
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@protected
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BOOL _valid;
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NSSize _cachedSize;
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NSMutableArray *_childCache;
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}
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#pragma mark Creation Methods
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+ (instancetype)functionLayoutForFunctionAtIndexPath:(NSIndexPath *)functionPath
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parent:(MPExpressionLayout *)parent;
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- (id)initWithFunctionPath:(NSIndexPath *)functionPath
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parent:(MPExpressionLayout *)parent;
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#pragma mark Properties
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@property (readonly, nonatomic, weak) MPExpressionLayout *parent;
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@property (readonly, nonatomic, strong) NSIndexPath *functionPath;
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- (MPExpressionStorage *)expressionStorage;
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- (MPFunction *)function; // Convenience
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- (NSLayoutManager *)layoutManager;
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- (NSTextContainer *)textContainer;
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- (NSTextStorage *)textStorage;
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#pragma mark Cache Methods
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- (void)invalidate;
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- (void)editedChildAtIndex:(NSUInteger)index;
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- (BOOL)hasCacheForChildAtIndex:(NSUInteger)index;
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- (MPExpressionLayout *)expressionLayoutForChildAtIndex:(NSUInteger)index;
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#pragma mark Size Calculation Methods
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- (NSSize)sizeOfFunction;
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- (NSSize)calculateSize;
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#pragma mark Drawing Methods
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- (void)drawFunctionAtPoint:(NSPoint)point;
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@end
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