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crumpets
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Clojure library for dealing with color
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# Crumpets [](https://travis-ci.org/weavejester/crumpets) A Clojure library for representing and manipulating color. It's currently usable, but has limited functionality. ## Installation Add the following dependency to your `project.clj` file: [crumpets "0.1.4"] ## Usage Crumpets provides types for holding color data: ```clojure (require '[crumpets.core :as color]) (def color-red (color/rgb 255 0 0)) ``` Colors can also be defined through the `#color/rgb` reader literal, which supports a variety of formats: ```clojure #color/rgb "#ff0000" #color/rgb [255 0 0] #color/rgb [1.0 0.0 0.0] ``` The color data can be representing as a hex string, a vector of integers between 0 and 255, or a vector of floats between 0.0 and 1.0. Alpha channels can be encoded with the `#color/rgba` reader literal: ```clojure #color/rgba "#ff000099" #color/rgba [255 0 0 153] ``` Colors implement the `ILookup` interface, so you can pull out their values by accessing the `:red`, `:green`, `:blue` and `:alpha` keys: ```clojure (:red color-red) ;; => 255 (get color-red :blue) ;; => 0 ``` There's also functions for converting color data to different formats, such as the [integer ARGB format][1] that can be used in BufferedImage objects: [1]: http://docs.oracle.com/javase/7/docs/api/java/awt/image/BufferedImage.html#TYPE_INT_ARGB ```clojure (int-argb color-red) ;; => 0xffff0000 ``` ## Documentation * [API Docs](http://weavejester.github.io/crumpets/) ## License Copyright © 2013 James Reeves Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.
