libsaria: Added an is_visible() function

This will return true if the given inode is visible.

include/libsaria/library.h

@@ -33,6 +33,7 @@ namespace libsaria
 
 		unsigned int size();
 		void filter(string &text);
+		bool is_visible(ino_t &);
 	}
 }
 

libsaria/library/index.cpp

@@ -167,4 +167,14 @@ namespace libsaria
 		trigger_callback(REFILTER);
 	}
 
+	bool library::is_visible(ino_t &inode)
+	{
+		set<ino_t>::iterator it;
+
+		if (filtered == false)
+			return true;
+		it = results.find(inode);
+		return it != results.end();
+	}
+
 }; /* Namespace: libsaria */