feature(util): Added pyth, degrees, radian and hex2rgb

angular-macgyver · Sep 24, 2013 · a3bea8b · a3bea8b
1 parent 61c9549
commit a3bea8b
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Showing 3 changed files with 87 additions and 2 deletions.
diff --git a/src/util.coffee b/src/util.coffee
@@ -88,10 +88,10 @@ angular.module("Mac.Util", []).factory "util", [
 
     capitalize: (string) ->
       str = String(string) or ""
-      return str.charAt(0).toUpperCase() + str[1..]
+      return str.charAt(0).toUpperCase() + str.substring(1)
     uncapitalize: (string) ->
       str = String(string) or ""
-      return str.charAt(0).toLowerCase() + str[1..]
+      return str.charAt(0).toLowerCase() + str.substring(1)
     toCamelCase: (string =  "") ->
       string.trim().replace /[-_\s]+(.)?/g, (match, c) -> c.toUpperCase()
     toSnakeCase: (string = "") ->
@@ -120,6 +120,29 @@ angular.module("Mac.Util", []).factory "util", [
 
       result
 
+    pyth:    (a,b)    -> Math.sqrt a*a + b*b
+    degrees: (radian) -> (radian * 180) / Math.PI
+    radian:  (degrees) -> (degrees * Math.PI) / 180
+
+    hex2rgb: (hex) ->
+      hex = hex.substring(1) if hex.indexOf('#') is 0
+      hex = hex.toLowerCase()
+      rgb = {}
+
+      if hex.length is 3
+        rgb.r = hex.charAt(0) + hex.charAt(0)
+        rgb.g = hex.charAt(1) + hex.charAt(1)
+        rgb.b = hex.charAt(2) + hex.charAt(2)
+      else
+        rgb.r = hex.substring(0, 2)
+        rgb.g = hex.substring(2, 4)
+        rgb.b = hex.substring(4)
+
+      for color, value of rgb
+        rgb[color] = parseInt value, 16
+
+      return rgb
+
     _urlRegex: /(?:(?:(http[s]{0,1}:\/\/)(?:(www|[\d\w\-]+)\.){0,1})|(www|[\d\w\-]+)\.)([\d\w\-]+)\.([A-Za-z]{2,6})(:[\d]*){0,1}(\/?[\d\w\-\?\,\'\/\\\+&amp;%\$#!\=~\.]*){0,1}/i
 
     validateUrl: (url) ->

diff --git a/src/util.jade b/src/util.jade
@@ -28,6 +28,18 @@ block append content
         li(mac-scroll-spy-target="convertKeysToSnakeCase"): a(href="#convertKeysToSnakeCase")
           i.icon-chevron-right
           | convertKeysToSnakeCase
+        li(mac-scroll-spy-target="pythagoras"): a(href="#pythagoras")
+          i.icon-chevron-right
+          | Pythagoras
+        li(mac-scroll-spy-target="degrees"): a(href="#degrees")
+          i.icon-chevron-right
+          | Radian to Degrees
+        li(mac-scroll-spy-target="radian"): a(href="#radian")
+          i.icon-chevron-right
+          | Degrees to Radian
+        li(mac-scroll-spy-target="hex2rgb"): a(href="#hex2rgb")
+          i.icon-chevron-right
+          | HEX to RGB
         li(mac-scroll-spy-target="validateUrl"): a(href="#validateUrl")
           i.icon-chevron-right
           | validateUrl
@@ -93,6 +105,31 @@ block append content
           | util.toSnakeCase({'helloWorld': 'test'})
           | => {'hello_world': 'test'}
 
+      section#pythagoras(mac-scroll-spy-anchor)
+        h3 Pythagoras
+        pre.prettyprint(ng-non-bindable)
+          | util.pyth(3, 4)
+          | => 5
+
+      section#degrees(mac-scroll-spy-anchor)
+        h3 Radian to Degrees
+        pre.prettyprint(ng-non-bindable)
+          | util.degrees(Math.PI)
+          | => 180
+
+      section#radian(mac-scroll-spy-anchor)
+        h3 Degrees to Radian
+        pre.prettyprint(ng-non-bindable)
+          | util.radian(180)
+          | => Math.PI
+
+      section#hex2rgb(mac-scroll-spy-anchor)
+        h3 HEX to RGB
+        p Convert HEX color into RGB values
+        pre.prettyprint(ng-non-bindable)
+          | util.hex2rgb("#5331DE")
+          | => {r: 83, g: 49, b: 222}
+
       section#validateUrl(mac-scroll-spy-anchor)
         h3 validateUrl
         p Parse url and break it into different components

diff --git a/test/unit/util.spec.coffee b/test/unit/util.spec.coffee
@@ -160,4 +160,29 @@ describe "Mac Util", ->
       expect(util.extendAttributes "macGyver", defaults, attrsWithPrefix).toEqual
         width: 30, height:20
 
+  describe "pythagoras function", ->
+    it "should calculate value correctly", ->
+      expect(util.pyth(3, 4)).toBe 5
+
+  describe "radian to degree", ->
+    it "should convert radian to degree correctly", ->
+      expect(util.degrees Math.PI).toBe 180
+
+  describe "degree to radian", ->
+    it "should convert degree to radian correctly", ->
+      expect(util.radian(180)).toBe Math.PI
+
+  describe "hex to rgb", ->
+
+    hexValues =
+      "3D9AEB":  {r: 61, g: 154, b: 235}
+      "#3D9AEB": {r: 61, g: 154, b: 235}
+      "BAC":     {r: 187, g: 170, b: 204}
+      "#BAC":    {r: 187, g: 170, b: 204}
+
+    for hex, rgb of hexValues
+      it "should convert #{hex} correctly", ->
+        testRGB = util.hex2rgb hex
+        for rgbKey, rgbValue of testRGB
+          expect(rgbValue).toBe rgb[rgbKey]