add toRed, toGreen, & toBlue methods

Author: toddtreece

src/AdafruitIO_Data.cpp

@@ -312,6 +312,39 @@ unsigned long AdafruitIO_Data::toUnsignedLong()
   #endif
 }
 
+int AdafruitIO_Data::toRed()
+{
+  if(! _value)
+    return 0;
+
+  char r[] = "0x";
+  strncat(r, toChar() + 1, 2);
+
+  return (int)strtol(r, NULL, 0);
+}
+
+int AdafruitIO_Data::toGreen()
+{
+  if(! _value)
+    return 0;
+
+  char g[] = "0x";
+  strncat(g, toChar() + 3, 2);
+
+  return (int)strtol(g, NULL, 0);
+}
+
+int AdafruitIO_Data::toBlue()
+{
+  if(! _value)
+    return 0;
+
+  char b[] = "0x";
+  strncat(b, toChar() + 5, 2);
+
+  return (int)strtol(b, NULL, 0);
+}
+
 long AdafruitIO_Data::toNeoPixel()
 {
   if(! _value)

src/AdafruitIO_Data.h

@@ -62,6 +62,9 @@ class AdafruitIO_Data {
     long toLong();
     unsigned long toUnsignedLong();
 
+    int toRed();
+    int toGreen();
+    int toBlue();
     long toNeoPixel();
 
     char* toCSV();