740c3fd80a
Added example expression (hardcoded for development) Added example change for expressions (hardcoded for development)
66 lines
1.9 KiB
Objective-C
66 lines
1.9 KiB
Objective-C
//
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// MPExpressionLayout.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 MPExpressionLayout, MPFunctionLayout, MPExpressionStorage, MPExpressionView, MPExpression;
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@interface MPExpressionLayout : NSObject {
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BOOL _valid;
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NSSize _cachedSize;
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NSMutableArray *_symbolCache;
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}
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#pragma mark Creation Methods
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// -init not supported
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- (id)initRootLayoutWithExpressionStorage:(MPExpressionStorage *)expressionStorage;
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- (id)initWithExpressionPath:(NSIndexPath *)expressionPath
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parent:(MPFunctionLayout *)parent;
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#pragma mark Properties
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@property (readonly, nonatomic, weak) MPFunctionLayout *parent;
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@property (readonly, nonatomic, weak) MPExpressionStorage *expressionStorage;
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@property (readonly, nonatomic, strong) NSIndexPath *expressionPath;
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@property (nonatomic, weak) MPExpressionView *expressionView;
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- (MPExpression *)expression; // 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)editedExpressionInRange:(NSRange)range
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replacementLength:(NSUInteger)length;
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- (BOOL)hasCacheForSymbolAtIndex:(NSUInteger)index;
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- (MPFunctionLayout *)functionLayoutForFunctionAtIndex:(NSUInteger)index;
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- (NSSize)cachedSizeForSymbolAtIndex:(NSUInteger)index;
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- (void)cacheSize:(NSSize)size forSymbolAtIndex:(NSUInteger)index;
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#pragma mark Sizes Calculation Methods
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- (NSSize)sizeForAllSymbols;
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- (NSSize)sizeForSymbolAtIndex:(NSUInteger)index;
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- (NSSize)sizeForSymbolsInRange:(NSRange)range;
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#pragma mark Drawing Methods
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- (void)drawSymbolAtIndex:(NSUInteger)index
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atPoint:(NSPoint)point;
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- (void)drawSymbolsInRange:(NSRange)range
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atPoint:(NSPoint)point;
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- (void)drawAllSymbolsAtPoint:(NSPoint)point;
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@end
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