[gtk/constraint-editor-work: 1/4] constraint-editor: Improve display of constraints

[Matthias Clasen <matthiasc src gnome org>]

commit de461712a1e5ae5ba2790ed855bbaf784056330e
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Nov 17 21:52:15 2020 -0500

    constraint-editor: Improve display of constraints
    
    No need to go for ALGOL60 style operators when we
    have Unicode.

 demos/constraint-editor/constraint-editor.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)
---
diff --git a/demos/constraint-editor/constraint-editor.c b/demos/constraint-editor/constraint-editor.c
index 62af6e356f..ffbc6a15b0 100644
--- a/demos/constraint-editor/constraint-editor.c
+++ b/demos/constraint-editor/constraint-editor.c
@@ -212,6 +212,22 @@ get_relation_nick (GtkConstraintRelation relation)
   return nick;
 }
 
+static const char *
+get_relation_display_name (GtkConstraintRelation relation)
+{
+  switch (relation)
+    {
+    case GTK_CONSTRAINT_RELATION_LE:
+      return "≤";
+    case GTK_CONSTRAINT_RELATION_EQ:
+      return "=";
+    case GTK_CONSTRAINT_RELATION_GE:
+      return "≥";
+    default:
+      return "?";
+    }
+}
+
 static GtkConstraintStrength
 get_strength (const char *id)
 {
@@ -347,7 +363,7 @@ constraint_editor_constraint_to_string (GtkConstraint *constraint)
 
   name = get_target_name (gtk_constraint_get_target (constraint));
   attr = get_attr_nick (gtk_constraint_get_target_attribute (constraint));
-  relation = get_relation_nick (gtk_constraint_get_relation (constraint));
+  relation = get_relation_display_name (gtk_constraint_get_relation (constraint));
 
   if (name == NULL)
     name = "[ ]";