[glom/gtkmm4v3: 19/21] gtkmm4: AddDel: Add a get_value() override that takes a Row.

[Murray Cumming <murrayc src gnome org>]

commit 655dc4e5cf2b040e5a38df8e87a9d2d3d26b6e4f
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Mar 14 10:18:48 2017 +0100

    gtkmm4: AddDel: Add a get_value() override that takes a Row.
    
    Apparently gtkmm4 no longer has an implicit conversion.

 glom/utility_widgets/adddel/adddel.cc |   15 +++++++++------
 glom/utility_widgets/adddel/adddel.h  |    4 ++++
 2 files changed, 13 insertions(+), 6 deletions(-)
---
diff --git a/glom/utility_widgets/adddel/adddel.cc b/glom/utility_widgets/adddel/adddel.cc
index b8d3977..d4af425 100644
--- a/glom/utility_widgets/adddel/adddel.cc
+++ b/glom/utility_widgets/adddel/adddel.cc
@@ -297,29 +297,27 @@ void AddDel::remove_all()
 }
 
 
-Glib::ustring AddDel::get_value(const Gtk::TreeModel::iterator& iter, guint col)
+Glib::ustring AddDel::get_value(const Gtk::TreeModel::Row& row, guint col)
 {
   Glib::ustring value;
 
   if(m_list_store)
   {
-    Gtk::TreeModel::Row treerow = *iter;
-
-    if(treerow)
+    if(row)
     {
       const guint col_real = col;
       //Get different types of data, depending on the column:
       if(m_column_types[col_real].m_style == AddDelColumnInfo::enumStyles::Boolean)
       {
         bool bool_value = false;
-        treerow.get_value(col_real, bool_value);
+        row.get_value(col_real, bool_value);
 
         //Create a string representation of the value:
         value = bool_value  ? "true" : "false";
       }
       else
       {
-        treerow.get_value(col_real, value);
+        row.get_value(col_real, value);
       }
     }
   }
@@ -327,6 +325,11 @@ Glib::ustring AddDel::get_value(const Gtk::TreeModel::iterator& iter, guint col)
   return value;
 }
 
+Glib::ustring AddDel::get_value(const Gtk::TreeModel::iterator& iter, guint col)
+{
+  return get_value(*iter, col);
+}
+
 bool AddDel::get_value_as_bool(const Gtk::TreeModel::iterator& iter, guint col)
 {
 //TODO: I doubt that this works. It should really get the value from the treeview as a bool. murrayc
diff --git a/glom/utility_widgets/adddel/adddel.h b/glom/utility_widgets/adddel/adddel.h
index cc0fe91..3844c14 100644
--- a/glom/utility_widgets/adddel/adddel.h
+++ b/glom/utility_widgets/adddel/adddel.h
@@ -99,7 +99,11 @@ public:
 
   void remove_all();
 
+  Glib::ustring get_value(const Gtk::TreeModel::Row& iter, guint col);
+
+  // TODO: Remove this one?
   Glib::ustring get_value(const Gtk::TreeModel::iterator& iter, guint col);
+
   bool get_value_as_bool(const Gtk::TreeModel::iterator& iter, guint col);
 
   /** Get the row's hidden key