[gnome-calendar/new-year-view] event-widget: added compare function

[Erick Pérez Castellanos <erickpc src gnome org>]

commit 91b9dafb461562dd9bcfebf85fb326fc5e325a8a
Author: Erick Pérez Castellanos <erick red gmail com>
Date:   Mon Jan 19 01:39:44 2015 -0500

    event-widget: added compare function
    
    This compare function is made to sort using the same two methods used
    before but together, giving priority to the longer events.
    The idea is sort event properly on year-view's sidebar.
    This function will probably change later.

 src/gcal-event-widget.c |   39 +++++++++++++++++++++++++++++++++++++++
 src/gcal-event-widget.h |    3 +++
 2 files changed, 42 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-event-widget.c b/src/gcal-event-widget.c
index 8ee0509..094a7c9 100644
--- a/src/gcal-event-widget.c
+++ b/src/gcal-event-widget.c
@@ -1164,3 +1164,42 @@ gcal_event_widget_compare_by_start_date (GcalEventWidget *widget1,
 
   return icaltime_compare (*(priv1->dt_start), *(priv2->dt_start));
 }
+
+/**
+ * gcal_event_widget_compare_for_single_day:
+ * @widget1:
+ * @widget2:
+ *
+ * Compare widgets by putting those that span over a day before the rest, and between those
+ * who last less than a day by its start time/date
+ *
+ * Returns:
+ **/
+gint
+gcal_event_widget_compare_for_single_day (GcalEventWidget *widget1,
+                                          GcalEventWidget *widget2)
+{
+  GcalEventWidgetPrivate *priv1;
+  GcalEventWidgetPrivate *priv2;
+
+  time_t time_s1, time_s2;
+  time_t time_e1, time_e2;
+  time_t result;
+
+  priv1 = gcal_event_widget_get_instance_private (widget1);
+  priv2 = gcal_event_widget_get_instance_private (widget2);
+
+  time_e1 = time_s1 = icaltime_as_timet (*(priv1->dt_start));
+  time_e2 = time_s2 = icaltime_as_timet (*(priv2->dt_start));
+
+  if (priv1->dt_end != NULL)
+    time_e1 = icaltime_as_timet (*(priv1->dt_end));
+  if (priv2->dt_end)
+    time_e2 = icaltime_as_timet (*(priv2->dt_end));
+
+  result = (time_e2 - time_s2) - (time_e1 - time_s1);
+  if (result != 0)
+    return result;
+  else
+    return icaltime_compare (*(priv1->dt_start), *(priv2->dt_start));
+}
diff --git a/src/gcal-event-widget.h b/src/gcal-event-widget.h
index c1c2ce6..12036ba 100644
--- a/src/gcal-event-widget.h
+++ b/src/gcal-event-widget.h
@@ -117,6 +117,9 @@ gint         gcal_event_widget_compare_by_length           (GcalEventWidget    *
 gint         gcal_event_widget_compare_by_start_date       (GcalEventWidget    *widget1,
                                                             GcalEventWidget    *widget2);
 
+gint         gcal_event_widget_compare_for_single_day      (GcalEventWidget    *widget1,
+                                                            GcalEventWidget    *widget2);
+
 G_END_DECLS
 
 #endif /* __GCAL_EVENT_WIDGET_H__ */