[gnome-calendar] month-view: fix end-of-month multi-day selections

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 96d2b37fec5c32709a5d0d6a3d2bd83ecf5d366e
Author: fosero <fosero users noreply github com>
Date:   Sun Mar 6 14:03:20 2016 +0100

    month-view: fix end-of-month multi-day selections
    
    Use g_date_time_add_days to add a day to the final day of the month to
    fix behaviour when selecting a range up to the last day of the month.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=763015

 src/gcal-month-view.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/src/gcal-month-view.c b/src/gcal-month-view.c
index 6574f6e..0d91d9c 100644
--- a/src/gcal-month-view.c
+++ b/src/gcal-month-view.c
@@ -282,7 +282,14 @@ show_popover_for_position (GcalMonthView *view,
 
       /* Only setup an end date when days are different */
       if (start_day != end_day)
-        end_dt = g_date_time_new_local (priv->date->year, priv->date->month, end_day + 1, 0, 0, 0);
+        {
+          GDateTime *tmp_dt;
+
+          tmp_dt = g_date_time_new_local (priv->date->year, priv->date->month, end_day, 0, 0, 0);
+          end_dt = g_date_time_add_days (tmp_dt, 1);
+
+          g_clear_pointer (&tmp_dt, g_date_time_unref);
+        }
 
       g_signal_emit_by_name (GCAL_VIEW (widget), "create-event", start_dt, end_dt, x, y);