[baobab/zbrown/tnum] cells: enable tabular numbers font feature

[Zander Brown <zbrown src gnome org>]

commit 3512f9e29a6c0e0e0fd50b60073faa5a1cec0cdb
Author: Zander Brown <zbrown gnome org>
Date:   Fri Nov 5 10:26:41 2021 +0000

    cells: enable tabular numbers font feature
    
    Stops size/contents looking higgledypiggledy as numbers now align with
    each other, also reduces movement whilst scanning

 src/baobab-cellrenderers.vala | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)
---
diff --git a/src/baobab-cellrenderers.vala b/src/baobab-cellrenderers.vala
index c7580bc..9b16b19 100644
--- a/src/baobab-cellrenderers.vala
+++ b/src/baobab-cellrenderers.vala
@@ -108,7 +108,15 @@ namespace Baobab {
 
     }
 
-    public class CellRendererSize : Gtk.CellRendererText {
+    public class CellRendererTabular : Gtk.CellRendererText {
+        construct {
+            var attrs = new Pango.AttrList();
+            attrs.insert (new Pango.AttrFontFeatures ("tnum=1"));
+            attributes = attrs;
+        }
+    }
+
+    public class CellRendererSize : CellRendererTabular {
         public Scanner.State state { set; get; }
 
         public new uint64 size {
@@ -118,7 +126,7 @@ namespace Baobab {
         }
     }
 
-    public class CellRendererItems : Gtk.CellRendererText {
+    public class CellRendererItems : CellRendererTabular {
         public Scanner.State state { set; get; }
 
         public int items {