TreeViewDemo/Utility/TreeViewColorConversion.m

/*

    File: TreeViewColorConversion.m

Abstract: TreeView Color Conversion Functions

 Version: 1.4

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*/

#import "TreeViewColorConversion.h"

CGColorRef TreeView_CreateCGColorFromNSColor(NSColor *color) {

    CGColorRef cgColor = NULL;

    CGFloat components[4];

    // Convert the given NSColor to NSCalibratedRGBColorSpace (if it isn't already expressed in that color space).

    NSColor *calibratedRGBColor = [color colorUsingColorSpaceName:NSCalibratedRGBColorSpace];

    if (calibratedRGBColor) {

        // Get the color's RGBA components.

        [calibratedRGBColor getRed:&components[0] green:&components[1] blue:&components[2] alpha:&components[3]];

        // Create a CGColor from the NSColor.

        NSColorSpace *colorSpace = [calibratedRGBColor colorSpace];

        if (colorSpace) {

            CGColorSpaceRef cgColorSpace = [colorSpace CGColorSpace];

            cgColor = CGColorCreate(cgColorSpace, components);

        }

    }

    return cgColor;

}