# HG changeset patch
# User drewp@bigasterisk.com
# Date 1405189920 25200
# Node ID 5b607e8d35d08b1becc061f6ddd27fdbd07d7854
# Parent  cc04b6af047753a531656b0629a7f5aa6cc16cd5
add color/hex
Ignore-this: 20a75656647a5049527ba255437a8542

diff -r cc04b6af0477 -r 5b607e8d35d0 service/pilight/src/color/hex/colorhex.go
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/service/pilight/src/color/hex/colorhex.go	Sat Jul 12 11:32:00 2014 -0700
@@ -0,0 +1,58 @@
+// From https://github.com/zond/wildlife/blob/master/code.google.com/p/gorilla/color/hex.go
+
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package hex
+
+import (
+	"fmt"
+	"image/color"
+	"strconv"
+)
+
+// HexModel converts any Color to an Hex color.
+var HexModel = color.ModelFunc(hexModel)
+
+// Hex represents an RGB color in hexadecimal format.
+//
+// The length must be 3 or 6 characters, preceded or not by a '#'.
+type Hex string
+
+// RGBA returns the alpha-premultiplied red, green, blue and alpha values
+// for the Hex.
+func (c Hex) RGBA() (uint32, uint32, uint32, uint32) {
+	r, g, b := HexToRGB(c)
+	return uint32(r) * 0x101, uint32(g) * 0x101, uint32(b) * 0x101, 0xffff
+}
+
+// hexModel converts a Color to Hex.
+func hexModel(c color.Color) color.Color {
+	if _, ok := c.(Hex); ok {
+		return c
+	}
+	r, g, b, _ := c.RGBA()
+	return RGBToHex(uint8(r>>8), uint8(g>>8), uint8(b>>8))
+}
+
+// RGBToHex converts an RGB triple to an Hex string.
+func RGBToHex(r, g, b uint8) Hex {
+	return Hex(fmt.Sprintf("#%02X%02X%02X", r, g, b))
+}
+
+// HexToRGB converts an Hex string to a RGB triple.
+func HexToRGB(h Hex) (uint8, uint8, uint8) {
+	if len(h) > 0 && h[0] == '#' {
+		h = h[1:]
+	}
+	if len(h) == 3 {
+		h = h[:1] + h[:1] + h[1:2] + h[1:2] + h[2:] + h[2:]
+	}
+	if len(h) == 6 {
+		if rgb, err := strconv.ParseUint(string(h), 16, 32); err == nil {
+			return uint8(rgb >> 16), uint8((rgb >> 8) & 0xFF), uint8(rgb & 0xFF)
+		}
+	}
+	return 0, 0, 0
+}