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//
// NSArray+Color.m
// CocoaTADS
//
// Created by Uli Kusterer on Mon Jun 02 2003.
// Copyright (c) 2003 Uli Kusterer.
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
// -----------------------------------------------------------------------------
// Headers:
// -----------------------------------------------------------------------------
#import "NSArray+Color.h"
@implementation NSArray (UKColor)
// -----------------------------------------------------------------------------
// arrayWithColor:
// Converts the color to an RGB color if needed, and then creates an array
// with its red, green, blue and alpha components (in that order).
//
// REVISIONS:
// 2004-05-18 witness documented.
// -----------------------------------------------------------------------------
+(NSArray*) arrayWithColor: (NSColor*) col
{
CGFloat fRed = 0, fGreen = 0, fBlue = 0, fAlpha = 1.0;
col = [col colorUsingColorSpaceName: NSCalibratedRGBColorSpace];
[col getRed: &fRed green: &fGreen blue: &fBlue alpha: &fAlpha];
return [self arrayWithObjects: [NSNumber numberWithFloat:fRed], [NSNumber numberWithFloat:fGreen],
[NSNumber numberWithFloat:fBlue], [NSNumber numberWithFloat:fAlpha], nil];
}
// -----------------------------------------------------------------------------
// colorValue:
// Converts an NSArray with three (or four) NSValues into an RGB Color
// (plus alpha, if specified).
//
// REVISIONS:
// 2004-05-18 witness documented.
// -----------------------------------------------------------------------------
-(NSColor*) colorValue
{
float fRed = 0, fGreen = 0, fBlue = 0, fAlpha = 1.0;
if( [self count] >= 3 )
{
fRed = [[self objectAtIndex:0] floatValue];
fGreen = [[self objectAtIndex:1] floatValue];
fBlue = [[self objectAtIndex:2] floatValue];
}
if( [self count] > 3 ) // Have alpha info?
fAlpha = [[self objectAtIndex:3] floatValue];
return [NSColor colorWithCalibratedRed: fRed green: fGreen blue: fBlue alpha: fAlpha];
}
@end
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