//

// WDAbstractPath.h

// Inkpad

//

// This Source Code Form is subject to the terms of the Mozilla Public

// License, v. 2.0. If a copy of the MPL was not distributed with this

// file, You can obtain one at http://mozilla.org/MPL/2.0/.

//

// Copyright (c) 2011-2013 Steve Sprang

//

#import <Foundation/Foundation.h>

#import "WDStylable.h"

@protocol WDPathPainter;

@class WDFillTransform;

@class WDStrokeStyle;

// the fill rule can be passed directly to functions that take a bool indicating EO fill

typedef enum {

kWDNonZeroWindingFillRule = 0,

kWDEvenOddFillRule = 1

} WDFillRule;

@interface WDAbstractPath : WDStylable <NSCoding, NSCopying>

@property (nonatomic, assign) WDFillRule fillRule;

@property (nonatomic, readonly) CGPathRef pathRef;

@property (nonatomic, readonly) CGPathRef strokePathRef;

+ (WDAbstractPath *) pathWithCGPathRef:(CGPathRef)pathRef;

- (NSUInteger) subpathCount;

- (NSString *) nodeSVGRepresentation;

- (void) addSVGArrowheadsToGroup:(WDXMLElement *)group;

- (BOOL) canOutlineStroke;

- (WDAbstractPath *) outlineStroke;

// subclasses can override this to enhance the default outline

- (void) addElementsToOutlinedStroke:(CGMutablePathRef)pathRef;

- (NSArray *) erase:(WDAbstractPath *)erasePath;

- (void) simplify;

- (void) flatten;

- (WDAbstractPath *) pathByFlatteningPath;

// so subclasses can override

- (void) renderStrokeInContext:(CGContextRef)ctx;

@end