[gtk+] mir: implement screen get_plug_name

[Marco Trevisan <marcotrevi src gnome org>]

commit 4e4ccb76cd8b5b7dc4342f35fcf64ace30019641
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Thu Nov 13 02:26:38 2014 +0100

    mir: implement screen get_plug_name

 gdk/mir/gdkmirscreen.c |   41 ++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 40 insertions(+), 1 deletions(-)
---
diff --git a/gdk/mir/gdkmirscreen.c b/gdk/mir/gdkmirscreen.c
index c02efd6..82f1ae6 100644
--- a/gdk/mir/gdkmirscreen.c
+++ b/gdk/mir/gdkmirscreen.c
@@ -320,7 +320,46 @@ gdk_mir_screen_get_monitor_plug_name (GdkScreen *screen,
                                       gint       monitor_num)
 {
   g_printerr ("gdk_mir_screen_get_monitor_plug_name (%d)\n", monitor_num);
-  return NULL; //?
+  MirDisplayOutput *output = get_output (screen, monitor_num);
+
+  if (output)
+    {
+      switch (output->type)
+        {
+          case mir_display_output_type_unknown:
+            return g_strdup_printf ("UNKNOWN-%u", output->output_id);
+          case mir_display_output_type_vga:
+            return g_strdup_printf ("VGA-%u", output->output_id);
+          case mir_display_output_type_dvii:
+            return g_strdup_printf ("DVII-%u", output->output_id);
+          case mir_display_output_type_dvid:
+            return g_strdup_printf ("DVID-%u", output->output_id);
+          case mir_display_output_type_dvia:
+            return g_strdup_printf ("DVIA-%u", output->output_id);
+          case mir_display_output_type_composite:
+            return g_strdup_printf ("COMPOSITE-%u", output->output_id);
+          case mir_display_output_type_svideo:
+            return g_strdup_printf ("SVIDEO-%u", output->output_id);
+          case mir_display_output_type_lvds:
+            return g_strdup_printf ("LVDS-%u", output->output_id);
+          case mir_display_output_type_component:
+            return g_strdup_printf ("COMPONENT-%u", output->output_id);
+          case mir_display_output_type_ninepindin:
+            return g_strdup_printf ("NINEPINDIN-%u", output->output_id);
+          case mir_display_output_type_displayport:
+            return g_strdup_printf ("DISPLAYPORT-%u", output->output_id);
+          case mir_display_output_type_hdmia:
+            return g_strdup_printf ("HDMIA-%u", output->output_id);
+          case mir_display_output_type_hdmib:
+            return g_strdup_printf ("HDMIB-%u", output->output_id);
+          case mir_display_output_type_tv:
+            return g_strdup_printf ("TV-%u", output->output_id);
+          case mir_display_output_type_edp:
+            return g_strdup_printf ("EDP-%u", output->output_id);
+        }
+    }
+
+  return NULL;
 }
 
 static void