Add Colour::to_rgb_string.

2 files changed, 12 insertions, 0 deletions

diff --git a/src/types.cc b/src/types.cc
index 812e0f89..0347d02f 100644
--- a/src/types.cc
+++ b/src/types.cc
@@ -126,6 +126,17 @@ Colour::to_argb_string () const
 	return buffer;
 }
 
+/** @return An RGB string of the form RRGGBB, where e.g. RR is a two-character
+ *  hex value.
+ */
+string
+Colour::to_rgb_string () const
+{
+	char buffer[7];
+	snprintf (buffer, sizeof(buffer), "%02X%02X%02X", r, g, b);
+	return buffer;
+}
+
 /** operator== for Colours.
  *  @param a First colour to compare.
  *  @param b Second colour to compare.
diff --git a/src/types.h b/src/types.h
index dd2e10a6..e8761c81 100644
--- a/src/types.h
+++ b/src/types.h
@@ -246,6 +246,7 @@ public:
 	int g; ///< green component, from 0 to 255
 	int b; ///< blue component, from 0 to 255
 
+	std::string to_rgb_string () const;
 	std::string to_argb_string () const;
 };