From 194db8634e4fd6e921408aeac5472d1430cbcc6c Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Tue, 15 Apr 2014 21:11:10 -0400
Subject: [PATCH] Columns

- The Columns::is_uda() method allows identification of UDA attributes.
---
 src/columns/ColUDA.cpp | 6 ++++++
 src/columns/ColUDA.h   | 1 +
 src/columns/Column.h   | 1 +
 3 files changed, 8 insertions(+)

diff --git a/src/columns/ColUDA.cpp b/src/columns/ColUDA.cpp
index 2be827bd3..becd41b3d 100644
--- a/src/columns/ColUDA.cpp
+++ b/src/columns/ColUDA.cpp
@@ -56,6 +56,12 @@ ColumnUDA::~ColumnUDA ()
 {
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool ColumnUDA::is_uda () const
+{
+  return true;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 bool ColumnUDA::validate (std::string& value)
 {
diff --git a/src/columns/ColUDA.h b/src/columns/ColUDA.h
index 196e0e91b..4ab454553 100644
--- a/src/columns/ColUDA.h
+++ b/src/columns/ColUDA.h
@@ -39,6 +39,7 @@ public:
   ColumnUDA ();
   ~ColumnUDA ();
 
+  bool is_uda () const;
   bool validate (std::string&);
   void measure (Task&, unsigned int&, unsigned int&);
   void render (std::vector <std::string>&, Task&, int, Color&);
diff --git a/src/columns/Column.h b/src/columns/Column.h
index fc9778851..91e77e885 100644
--- a/src/columns/Column.h
+++ b/src/columns/Column.h
@@ -50,6 +50,7 @@ public:
   std::string label () const                  { return _label;      }
   std::string type () const                   { return _type;       }
   bool modifiable () const                    { return _modifiable; }
+  bool is_uda () const                        { return false;       }
   std::vector <std::string> styles () const   { return _styles;     }
   std::vector <std::string> examples () const { return _examples;   }