add comments and gpl header to those files for better documentation in doxygen

1 files changed, 3 insertions, 0 deletions

diff --git a/range.h b/range.h
index 3573174..e50a48e 100644
--- a/range.h
+++ b/range.h
@@ -25,6 +25,9 @@
 #include <Qt>
 #include "validator.h"
 
+/**
+ * @brief The Range class is validator class to check validity between two values.
+ */
 class Range : public Validator
 {
 public: