variable: Simplify var_set_display_width().

[pspp-builds.git] / src / data / variable.c

diff --git a/src/data/variable.c b/src/data/variable.c
index 35fdab29ebbef73d8ad59eba2be64b3e89fd6d86..1f9b62e1929114db84b74ad9ee8f517d88d9d085 100644 (file)
--- a/src/data/variable.c
+++ b/src/data/variable.c
@@ -636,6 +636,26 @@ measure_is_valid (enum measure m)
   return m == MEASURE_NOMINAL || m == MEASURE_ORDINAL || m == MEASURE_SCALE;
 }
 
+/* Returns a string version of measurement level M, for display to a user. */
+const char *
+measure_to_string (enum measure m)
+{
+  switch (m)
+    {
+    case MEASURE_NOMINAL:
+      return _("Nominal");
+
+    case MEASURE_ORDINAL:
+      return _("Ordinal");
+
+    case MEASURE_SCALE:
+      return _("Scale");
+
+    default:
+      return "Invalid";
+    }
+}
+
 /* Returns V's measurement level. */
 enum measure
 var_get_measure (const struct variable *v)
@@ -673,14 +693,12 @@ var_get_display_width (const struct variable *v)
 void
 var_set_display_width (struct variable *v, int new_width)
 {
-  int old_width = v->display_width;
-
-  v->display_width = new_width;
-
-  if ( old_width != new_width)
-    dict_var_display_width_changed (v);
-
-  dict_var_changed (v);
+  if (v->display_width != new_width)
+    {
+      v->display_width = new_width;
+      dict_var_display_width_changed (v);
+      dict_var_changed (v);
+    }
 }
 
 /* Returns the default display width for a variable of the given
@@ -700,6 +718,26 @@ alignment_is_valid (enum alignment a)
   return a == ALIGN_LEFT || a == ALIGN_RIGHT || a == ALIGN_CENTRE;
 }
 
+/* Returns a string version of alignment A, for display to a user. */
+const char *
+alignment_to_string (enum alignment a)
+{
+  switch (a)
+    {
+    case ALIGN_LEFT:
+      return _("Left");
+
+    case ALIGN_RIGHT:
+      return _("Right");
+
+    case ALIGN_CENTRE:
+      return _("Center");
+
+    default:
+      return "Invalid";
+    }
+}
+
 /* Returns V's display alignment, which applies only to GUIs. */
 enum alignment
 var_get_alignment (const struct variable *v)