- added a ColorFloat flag to Options, which can be set to write and read RGBA values as float instead of unsigned char

- added color_is_float function which checks if the ColorFloat flag was set

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@816 fdac6126-5c0c-442c-9429-916003d36597

src/OpenMesh/Core/IO/Options.hh

@@ -106,7 +106,8 @@ public:
       FaceNormal     = 0x0100, ///< Has (r) / store (w) face normals
       FaceColor      = 0x0200, ///< Has (r) / store (w) face colors
       FaceTexCoord   = 0x0400, ///< Has (r) / store (w) face texture coordinates
-      ColorAlpha     = 0x0800  ///< Has (r) / store (w) alpha values for colors
+      ColorAlpha     = 0x0800,  ///< Has (r) / store (w) alpha values for colors
+      ColorFloat     = 0x1000  ///< Has (r) / store (w) float values for colors
   };
 
 public:
@@ -202,6 +203,7 @@ public:
   bool face_has_color()      const { return check(FaceColor); }
   bool face_has_texcoord()   const { return check(FaceTexCoord); }
   bool color_has_alpha()     const { return check(ColorAlpha); }
+  bool color_is_float()      const { return check(ColorFloat); }
 
 
   /// Returns true if _rhs has the same options enabled.