[gnome-calendar] event-widget: fix memory leak.

[Erick Pérez Castellanos <erickpc src gnome org>]

commit 3805496dbbdaad3d988d8582c244743ab1175f2e
Author: Erick Pérez Castellanos <erick red gmail com>
Date:   Sun Oct 19 20:08:05 2014 -0400

    event-widget: fix memory leak.
    
    According to valgrind pango leaks memory when creating a PangoLayout
    using gtk_widget_create_pango_layout with a literal string.

 src/gcal-event-widget.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)
---
diff --git a/src/gcal-event-widget.c b/src/gcal-event-widget.c
index c0807b2..b612af8 100644
--- a/src/gcal-event-widget.c
+++ b/src/gcal-event-widget.c
@@ -393,12 +393,11 @@ gcal_event_widget_get_preferred_height (GtkWidget *widget,
   GtkBorder margin;
   GtkBorder padding;
   PangoLayout *layout;
-  PangoRectangle logical_rect;
+  gint height;
 
-  layout = gtk_widget_create_pango_layout (widget, "00:00:00 00:00");
+  layout = gtk_widget_create_pango_layout (widget, NULL);
 
-  pango_layout_get_extents (layout, NULL, &logical_rect);
-  pango_extents_to_pixels (&logical_rect, NULL);
+  pango_layout_get_pixel_size (layout, NULL, &height);
 
   gtk_style_context_get_margin (gtk_widget_get_style_context (widget),
                                 gtk_widget_get_state_flags (widget),
@@ -408,7 +407,7 @@ gcal_event_widget_get_preferred_height (GtkWidget *widget,
                                  &padding);
 
   *minimum = *natural =
-    logical_rect.height + padding.top + padding.bottom + margin.top + margin.bottom;
+    height + padding.top + padding.bottom + margin.top + margin.bottom;
 
   g_object_unref (layout);
 }