[gimp] app: Support 'M' for 'megapixels' in image title format string

[Martin Nordholts <martinn src gnome org>]

commit aa47dd22f0d8d498c80236303e0ac27210a4e675
Author: Bogdan Szczurek <thebodzio gmail com>
Date:   Thu Sep 30 07:57:44 2010 +0200

    app: Support 'M' for 'megapixels' in image title format string

 app/display/gimpdisplayshell-title.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/app/display/gimpdisplayshell-title.c b/app/display/gimpdisplayshell-title.c
index f2880c8..2ef9504 100644
--- a/app/display/gimpdisplayshell-title.c
+++ b/app/display/gimpdisplayshell-title.c
@@ -322,6 +322,15 @@ gimp_display_shell_format_title (GimpDisplayShell *shell,
               }
               break;
 
+            case 'M': /* image size in megapixels */
+              {
+                i += print (title, title_len, i, "%.1f",
+                            gimp_image_get_width (image) *
+                            gimp_image_get_height (image) /
+                            1000000.0f);
+              }
+              break;
+
             case 'l': /* number of layers */
               i += print (title, title_len, i, "%d",
                           gimp_image_get_n_layers (image));