transmission/macosx/CTGradient/CTGradient.h

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2007-09-16 01:02:06 +00:00
//
// CTGradient.h
//
// Created by Chad Weider on 2/14/07.
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// Copyright (c) 2007 Chad Weider.
// Some rights reserved: <http://creativecommons.org/licenses/by/2.5/>
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//
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// Version: 1.6
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#import <Cocoa/Cocoa.h>
typedef struct _CTGradientElement
{
float red, green, blue, alpha;
float position;
struct _CTGradientElement *nextElement;
} CTGradientElement;
typedef enum _CTBlendingMode
{
CTLinearBlendingMode,
CTChromaticBlendingMode,
CTInverseChromaticBlendingMode
} CTGradientBlendingMode;
@interface CTGradient : NSObject <NSCopying, NSCoding>
{
CTGradientElement* elementList;
CTGradientBlendingMode blendingMode;
CGFunctionRef gradientFunction;
}
+ (id)gradientWithBeginningColor:(NSColor *)begin endingColor:(NSColor *)end;
- (CTGradient *)gradientWithAlphaComponent:(float)alpha;
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- (void)addElement:(CTGradientElement*)newElement;
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- (CTGradient *)addColorStop:(NSColor *)color atPosition:(float)position; //positions given relative to [0,1]
- (CTGradient *)removeColorStopAtIndex:(unsigned)index;
- (CTGradient *)removeColorStopAtPosition:(float)position;
- (CTGradientBlendingMode)blendingMode;
- (NSColor *)colorStopAtIndex:(unsigned)index;
- (NSColor *)colorAtPosition:(float)position;
- (void)drawSwatchInRect:(NSRect)rect;
- (void)fillRect:(NSRect)rect angle:(float)angle; //fills rect with axial gradient
// angle in degrees
- (void)radialFillRect:(NSRect)rect; //fills rect with radial gradient
// gradient from center outwards
- (void)fillBezierPath:(NSBezierPath *)path angle:(float)angle;
- (void)radialFillBezierPath:(NSBezierPath *)path;
@end