# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1237854096 -3600
# Node ID b7d08f3b4ff967380e7c8c76f8e8004f37e6ffa0
# Parent  f398ad4b5d369d2761a1d04d8f167f9a34a12587
Permit reversed calendars when scheduling events.
Insist on a span when providing navigation.

diff -r f398ad4b5d36 -r b7d08f3b4ff9 EventAggregatorSupport.py
--- a/EventAggregatorSupport.py	Tue Mar 24 01:05:50 2009 +0100
+++ b/EventAggregatorSupport.py	Tue Mar 24 01:21:36 2009 +0100
@@ -247,6 +247,11 @@
     month of an event within the window of interest.
     """
 
+    # Re-order the window, if appropriate.
+
+    if calendar_start is not None and calendar_end is not None and calendar_start > calendar_end:
+        calendar_start, calendar_end = calendar_end, calendar_start
+
     events = []
     shown_events = {}
     all_shown_events = []
diff -r f398ad4b5d36 -r b7d08f3b4ff9 macros/EventAggregator.py
--- a/macros/EventAggregator.py	Tue Mar 24 01:05:50 2009 +0100
+++ b/macros/EventAggregator.py	Tue Mar 24 01:21:36 2009 +0100
@@ -145,6 +145,11 @@
             calendar_start = new_calendar_start
             calendar_end = new_calendar_end
 
+        # Insist on a span in order to ensure start and end months.
+
+        if span is None:
+            span = 1
+
     # Calculate the window of interest.
 
     if span is not None: