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//
// CTGradient.h
//
// Created by Chad Weider on 2/14/07.
// Writtin by Chad Weider.
//
// Released into public domain on 4/10/08.
//
// Version: 1.8
#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;
+ (id)aquaSelectedGradient;
+ (id)aquaNormalGradient;
+ (id)aquaPressedGradient;
+ (id)unifiedSelectedGradient;
+ (id)unifiedNormalGradient;
+ (id)unifiedPressedGradient;
+ (id)unifiedDarkGradient;
+ (id)sourceListSelectedGradient;
+ (id)sourceListUnselectedGradient;
+ (id)rainbowGradient;
+ (id)hydrogenSpectrumGradient;
- (CTGradient *)gradientWithAlphaComponent:(float)alpha;
- (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