[gnome-photos/wip/rishi/edit-mode: 30/33] utils: Add photos_utils_get_pixbuf_type_from_mime_type

[Debarshi Ray <debarshir src gnome org>]

commit 13bcff4070bce5bf6eb006262f38d1fded790806
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Nov 11 16:42:10 2015 +0100

    utils: Add photos_utils_get_pixbuf_type_from_mime_type
    
    We need it to get the GdkPixbuf type when saving a BaseItem.

 src/photos-utils.c |   35 +++++++++++++++++++++++++++++++++++
 src/photos-utils.h |    2 ++
 2 files changed, 37 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-utils.c b/src/photos-utils.c
index 34fa99c..909ab67 100644
--- a/src/photos-utils.c
+++ b/src/photos-utils.c
@@ -832,6 +832,41 @@ photos_utils_get_pixbuf_common_suffix (GdkPixbufFormat *format)
 }
 
 
+gchar *
+photos_utils_get_pixbuf_type_from_mime_type (const gchar *mime_type)
+{
+  GSList *formats;
+  GSList *l;
+  gchar *ret_val = NULL;
+
+  formats = gdk_pixbuf_get_formats ();
+
+  for (l = formats; l != NULL; l = l->next)
+    {
+      GdkPixbufFormat *format = (GdkPixbufFormat*) l->data;
+      gchar **supported_mime_types;
+      guint i;
+
+      supported_mime_types = gdk_pixbuf_format_get_mime_types (format);
+      for (i = 0; supported_mime_types[i] != NULL; i++)
+        {
+          if (g_strcmp0 (mime_type, supported_mime_types[i]) == 0)
+            {
+              ret_val = gdk_pixbuf_format_get_name (format);
+              break;
+            }
+        }
+
+      g_strfreev (supported_mime_types);
+      if (ret_val != NULL)
+        break;
+    }
+
+  g_slist_free (formats);
+  return ret_val;
+}
+
+
 const gchar *
 photos_utils_get_provider_name (PhotosBaseManager *src_mngr, PhotosBaseItem *item)
 {
diff --git a/src/photos-utils.h b/src/photos-utils.h
index 2592436..776e9f2 100644
--- a/src/photos-utils.h
+++ b/src/photos-utils.h
@@ -112,6 +112,8 @@ gint             photos_utils_get_icon_size_unscaled      (void);
 
 char*            photos_utils_get_pixbuf_common_suffix    (GdkPixbufFormat *format);
 
+gchar           *photos_utils_get_pixbuf_type_from_mime_type (const gchar *mime_type);
+
 const gchar     *photos_utils_get_provider_name           (PhotosBaseManager *src_mngr, PhotosBaseItem 
*item);
 
 GtkBorder       *photos_utils_get_thumbnail_frame_border  (void);