New ColorImpl to help with generifying

nose/src/main/scala/tf/bug/nose/Color.scala

+package tf.bug.nose
+
+import tf.bug.nose.implicits._
+
+sealed trait Color {
+
+  def rgb: RGBFormat
+  def hsv: HSVFormat
+
+}
+
+private case class ColorImpl[C](c: C)(implicit colorFormat: ColorFormat[C]) extends Color {
+
+  override def rgb: RGBFormat = colorFormat.asRGB(c)
+  override def hsv: HSVFormat = colorFormat.asHSV(c)
+
+}
+
+object Color {
+
+  def apply[C: ColorFormat](c: C): Color = ColorImpl(c)
+  def unapply[C: ColorFormat](arg: Color): Option[C] = arg match {
+    case ColorImpl(c: C) => Some(c)
+    case _ => None
+  }
+
+  def rgb(red: Double, green: Double, blue: Double): Color = {
+    Color(RGBFormat(red, green, blue))
+  }
+
+  def rgb(red: Int, green: Int, blue: Int): Color = {
+    Color(RGBFormat(red / 255.0, green / 255.0, blue / 255.0))
+  }
+
+  def rgb(rgb: Int): Color = {
+    val red = (rgb >> 16) & 0xFF
+    val green = (rgb >> 8) & 0xFF
+    val blue = rgb & 0xFF
+    Color.rgb(red, green, blue)
+  }
+
+}

src/main/scala/tf/bug/nose/Color.scala

-package tf.bug.nose
-
-import tf.bug.nose
-import tf.bug.nose.implicits._
-
-case class Color[C](c: C)(implicit colorFormat: ColorFormat[C]) {
-
-  def rgb: RGBFormat = colorFormat.asRGB(c)
-  def hsv: HSVFormat = colorFormat.asHSV(c)
-
-}
-
-object Color {
-
-  def rgb(red: Double, green: Double, blue: Double): Color[RGBFormat] = {
-    Color(nose.RGBFormat(red, green, blue))
-  }
-
-  def rgb(red: Int, green: Int, blue: Int): Color[RGBFormat] = {
-    Color(nose.RGBFormat(red / 255.0, green / 255.0, blue / 255.0))
-  }
-
-  def rgb(rgb: Int): Color[RGBFormat] = {
-    val red = (rgb >> 16) & 0xFF
-    val green = (rgb >> 8) & 0xFF
-    val blue = rgb & 0xFF
-    Color.rgb(red, green, blue)
-  }
-
-}