iLifeControls/CTGradient.h

   1 //
   2 //  CTGradient.h
   3 //
   4 //  Created by Chad Weider on 12/3/05.
   5 //  Copyright (c) 2006 Cotingent.
   6 //  Some rights reserved: <http://creativecommons.org/licenses/by/2.5/>
   7 //
   8 //  Version: 1.5
   9
  10 #import <Cocoa/Cocoa.h>
  11
  12 typedef struct _CTGradientElement
  13         {
  14         float red, green, blue, alpha;
  15         float position;
  16
  17         struct _CTGradientElement *nextElement;
  18         } CTGradientElement;
  19
  20 typedef enum  _CTBlendingMode
  21         {
  22         CTLinearBlendingMode,
  23         CTChromaticBlendingMode,
  24         CTInverseChromaticBlendingMode
  25         } CTGradientBlendingMode;
  26
  27
  28 @interface CTGradient : NSObject <NSCopying, NSCoding>
  29         {
  30         CTGradientElement* elementList;
  31         CTGradientBlendingMode blendingMode;
  32
  33         CGFunctionRef gradientFunction;
  34         }
  35
  36 + (id)gradientWithBeginningColor:(NSColor *)begin endingColor:(NSColor *)end;
  37
  38 + (id)aquaSelectedGradient;
  39 + (id)aquaNormalGradient;
  40 + (id)aquaPressedGradient;
  41
  42 + (id)unifiedSelectedGradient;
  43 + (id)unifiedNormalGradient;
  44 + (id)unifiedPressedGradient;
  45 + (id)unifiedDarkGradient;
  46
  47 + (id)sourceListSelectedGradient;
  48 + (id)sourceListUnselectedGradient;
  49
  50 - (CTGradient *)gradientWithAlphaComponent:(float)alpha;
  51
  52 - (CTGradient *)addColorStop:(NSColor *)color atPosition:(float)position;       //positions given relative to [0,1]
  53 - (CTGradient *)removeColorStopAtIndex:(unsigned)index;
  54 - (CTGradient *)removeColorStopAtPosition:(float)position;
  55
  56 - (CTGradientBlendingMode)blendingMode;
  57 - (NSColor *)colorStopAtIndex:(unsigned)index;
  58 - (NSColor *)colorAtPosition:(float)position;
  59
  60
  61 - (void)drawSwatchInRect:(NSRect)rect;
  62 - (void)fillRect:(NSRect)rect angle:(float)angle;                                       //fills rect with axial gradient
  63                                                                                                                                         //      angle in degrees
  64 - (void)radialFillRect:(NSRect)rect;                                                            //fills rect with radial gradient
  65                                                                                                                                         //  gradient from center outwards
  66 @end