[gtk+] Prefer symbolic icons for the default message dialog image

[Matthias Clasen <matthiasc src gnome org>]

commit b08c15d98667267faaa641899e4c5261438aa659
Author: William Jon McCann <jmccann redhat com>
Date:   Mon Jul 16 14:53:10 2012 -0400

    Prefer symbolic icons for the default message dialog image
    
    The icon does not need high resolution or color to indicate the type
    of message and the color can detract from the important part of the message.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=680048

 gtk/gtkmessagedialog.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkmessagedialog.c b/gtk/gtkmessagedialog.c
index 9261b49..6a86668 100644
--- a/gtk/gtkmessagedialog.c
+++ b/gtk/gtkmessagedialog.c
@@ -341,6 +341,7 @@ gtk_message_dialog_init (GtkMessageDialog *dialog)
 
   priv->label = gtk_label_new (NULL);
   priv->image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
+  g_object_set (priv->image, "use-fallback", TRUE, NULL);
   gtk_widget_set_halign (priv->image, GTK_ALIGN_CENTER);
   gtk_widget_set_valign (priv->image, GTK_ALIGN_START);
 
@@ -424,6 +425,7 @@ setup_type (GtkMessageDialog *dialog,
 {
   GtkMessageDialogPrivate *priv = dialog->priv;
   const gchar *stock_id = NULL;
+  const gchar *icon_name = NULL;
   AtkObject *atk_obj;
  
   priv->message_type = type;
@@ -432,18 +434,22 @@ setup_type (GtkMessageDialog *dialog,
     {
     case GTK_MESSAGE_INFO:
       stock_id = GTK_STOCK_DIALOG_INFO;
+      icon_name = GTK_STOCK_DIALOG_INFO "-symbolic";
       break;
 
     case GTK_MESSAGE_QUESTION:
       stock_id = GTK_STOCK_DIALOG_QUESTION;
+      icon_name = GTK_STOCK_DIALOG_QUESTION "-symbolic";
       break;
 
     case GTK_MESSAGE_WARNING:
       stock_id = GTK_STOCK_DIALOG_WARNING;
+      icon_name = GTK_STOCK_DIALOG_WARNING "-symbolic";
       break;
       
     case GTK_MESSAGE_ERROR:
       stock_id = GTK_STOCK_DIALOG_ERROR;
+      icon_name = GTK_STOCK_DIALOG_ERROR "-symbolic";
       break;
 
     case GTK_MESSAGE_OTHER:
@@ -454,8 +460,8 @@ setup_type (GtkMessageDialog *dialog,
       break;
     }
 
-  if (stock_id)
-    gtk_image_set_from_stock (GTK_IMAGE (priv->image), stock_id,
+  if (icon_name)
+    gtk_image_set_from_icon_name (GTK_IMAGE (priv->image), icon_name,
                               GTK_ICON_SIZE_DIALOG);
       
   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (dialog));