/*

File: QuartzDrawing.h

Abstract: Declerations for helper functions used by the

    ShadingView, GradientView and PreviewView.

Version: 1.0

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#include <ApplicationServices/ApplicationServices.h>

// Return a path in the unit coordiante system that

// specifies the stated shape.

CGPathRef GetSquarePath();

CGPathRef GetCirclePath();

CGPathRef GetStarPath();

// Create a CGFunctionRef that implements a linear interpolation of the 3 colors passed in.

// These colors are presumed to be in the RGB colorspace.

CGFunctionRef CreateShadingFunction(CGColorRef inColor1, CGFloat inColor1Start, CGColorRef inColor2, CGFloat inColor2Start, CGColorRef inColor3, CGFloat inColor3Start);

// Create a CGGradientRef that implements a linear interpolation of the 3 colors passed in.

CGGradientRef CreateGradient(CGColorRef inColor1, CGFloat inColor1Start, CGColorRef inColor2, CGFloat inColor2Start, CGColorRef inColor3, CGFloat inColor3Start);

// Returns the Generic RGB Colorspace

CGColorSpaceRef GetGenericRGBColorspace();

// Draws some indicators of where a gradient's start & end points are.

void DrawEmbellishments(CGContextRef context, CGSize size, CGPoint startPoint, CGFloat startRadius, CGPoint endPoint, CGFloat endRadius, bool drawRadii);