fnky / chroma

A Swift library for color generation and manipulation

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chroma's Issues

Wiki

Add some Documentation

See https://github.com/chrene/Chroma/wiki/ColorTint

Add operators for types

It should be possible to compare types in Chroma. Such as ColorTint e.g.

var a: ColorTint = ColorTint(...)
var b: ColorTint = ColorTint(...)

Perhaps be able to merge as well

Addition

Add component a.startColor to b.startColor, and (if not nil) a.endColor to b.endColor.

var c: ColorTint = a + b

Subtraction

Subtract component a.startColor from b.startColor, and (if not nil) a.endColor from b.endColor.

var c: ColorTint = a - b

Compare

Compare hash values between component a and b. If they're equal return true, otherwise false.

var isEqual: Bool = a == b
var notEqual: Bool = a != b

Implement algorithm to generate from and to color

Currently an init(startColor: UIColor!, endColor: UIColor?) is defined, but not used for anything.

Implement an algorithm to generate colors between startColor and endColor, to tintForIndex(index: Int) in ColorTint struct.

Add tests & coverage

Gotta add tests and coverage for pull requests and development.

Support for iOS & Mac

The project should be supported on both iOS & Mac. To support types from Cocoa and UIKit without having to reimplement a functionality for both, we can use this code

#if os(iOS)
  import UIKit
  typealias ChromaColor = UIColor
#else
  import Cocoa
  typealias ChromaColor = NSColor
#endif

public extension ChromaColor {}

Checks whether we are running in iOS environment, and use appropriate APIs supported on iOS, otherwise fallback to APIs supported on Mac.

For other functionality, that is only supported on either system should be implemented as part of their respective systems (Mac Framework vs. iOS Framework)

Add complementary generators

Some types should be GeneratorTypes to support next(), but complementary to still support things like tintForIndex(index: Int).