[gnome-maps] utils: Add function to create description for accuracy

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 9922369a2cc0ed65a99cae59b0f8ac7f2eedc924
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Sun Apr 14 17:53:48 2013 +0300

    utils: Add function to create description for accuracy
    
    https://bugzilla.gnome.org/show_bug.cgi?id=697736

 src/utils.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/src/utils.js b/src/utils.js
index 76cdd6b..7e1721c 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -30,6 +30,8 @@ const GdkPixbuf = imports.gi.GdkPixbuf;
 const Clutter = imports.gi.Clutter;
 const Cogl = imports.gi.Cogl;
 
+const _ = imports.gettext.gettext;
+
 let debugInit = false;
 let debugEnabled = false;
 
@@ -99,6 +101,18 @@ function getZoomLevelForAccuracy(accuracy) {
         return 3;
 }
 
+function getDescriptionForAccuracy(accuracy) {
+    if (accuracy == Geocode.LOCATION_ACCURACY_UNKNOWN)
+        return "Unknown";
+    else if (accuracy == 0)
+        return "Exact";
+    else {
+        let area =  Math.PI * Math.pow(accuracy / 1000, 2);
+        area = Math.floor(area);
+        return area.toString() + _(" km²");
+    }
+}
+
 function CreateActorFromImageFile(path) {
     try {
         let pixbuf = GdkPixbuf.Pixbuf.new_from_file(path);