[balsa/gtk3] Use parent width for image

[Peter Bloomfield <PeterB src gnome org>]

commit f2bff265e100e29b475abb667f71dcd84fde13ca
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Tue Dec 28 23:31:12 2010 -0500

    Use parent width for image

 ChangeLog                     |    5 +++++
 src/balsa-mime-widget-image.c |   10 +++-------
 2 files changed, 8 insertions(+), 7 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index f470e8e..0ec856e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2010-12-28  Peter Bloomfield
 
+	* src/balsa-mime-widget-image.c (img_check_size): use parent
+	width.
+
+2010-12-28  Peter Bloomfield
+
 	* libbalsa/filter.c (libbalsa_filter_mailbox_messages): do not
 	use GnomeSound.
 
diff --git a/src/balsa-mime-widget-image.c b/src/balsa-mime-widget-image.c
index 088c3f8..3b1e826 100644
--- a/src/balsa-mime-widget-image.c
+++ b/src/balsa-mime-widget-image.c
@@ -147,15 +147,11 @@ img_check_size(GtkImage ** widget_p)
 	curr_w = gdk_pixbuf_get_width(gtk_image_get_pixbuf(widget));
     else
 	curr_w = 0;
-    gtk_widget_get_allocation(viewport, &allocation);
-    dst_w = allocation.width;
-    gtk_widget_get_allocation(gtk_bin_get_child(GTK_BIN(viewport)),
-                              &allocation);
-    dst_w -= allocation.width;
+
     gtk_widget_get_allocation(gtk_widget_get_parent(GTK_WIDGET(widget)),
                               &allocation);
-    dst_w += allocation.width;
-    dst_w -= 16;                /* Magic number? */
+    dst_w = allocation.width;
+
     if (dst_w < 32)
 	dst_w = 32;
     if (dst_w > orig_width)