From af3f976f971d67ba57b4019d0db6647238a468ed Mon Sep 17 00:00:00 2001
From: Steve Brokenshire <sbrokenshire@xestia.co.uk>
Date: Sat, 11 Jun 2016 10:09:26 +0100
Subject: [PATCH] Added TZOFFSETFROM property for saving data from a
 CalendarTimezoneObject.

Added the code and unit tests for the TZOFFSETFROM property in both
STANDARD and DAYLIGHT timezone types.
---
 .../CalendarTimezone-Save.cpp                 | 56 +++++++++++++++++++
 .../tests/xestiacalendar_icaltimezonesave.h   |  6 ++
 2 files changed, 62 insertions(+)

diff --git a/source/objects/calendartimezone/CalendarTimezone-Save.cpp b/source/objects/calendartimezone/CalendarTimezone-Save.cpp
index 46c0be9..19920f7 100644
--- a/source/objects/calendartimezone/CalendarTimezone-Save.cpp
+++ b/source/objects/calendartimezone/CalendarTimezone-Save.cpp
@@ -129,6 +129,34 @@ void CalendarTimezoneObject::SaveObjectData(string *SaveData){
 				DataLineProcessed.clear();
 		
 			}
+			
+			// Process the TZOFFSETFROM value.
+	
+			if (TimezoneStandardCollection[TimezoneStandardSeek].TimeZoneOffsetFromData.size() > 0){
+		
+				if (TimezoneStandardCollection[TimezoneStandardSeek].TimeZoneOffsetFromTokens.size() > 0){
+		
+					DataLine += "TZOFFSETFROM;";
+					DataLine += TimezoneStandardCollection[TimezoneStandardSeek].TimeZoneOffsetFromTokens;
+			
+				} else {
+
+					DataLine += "TZOFFSETFROM";
+			
+				}
+
+				DataLine += ":";
+				DataLine += TimezoneStandardCollection[TimezoneStandardSeek].TimeZoneOffsetFromData;
+				DataLine += "\n";
+		
+				DataLineProcessed = OutputText(&DataLine);
+		
+				*SaveData += DataLineProcessed;
+		
+				DataLine.clear();
+				DataLineProcessed.clear();
+		
+			}
 				
 			*SaveData += "END:STANDARD\n";
 				
@@ -172,6 +200,34 @@ void CalendarTimezoneObject::SaveObjectData(string *SaveData){
 				DataLineProcessed.clear();
 		
 			}
+			
+			// Process the TZOFFSETFROM value.
+	
+			if (TimezoneDaylightCollection[TimezoneDaylightSeek].TimeZoneOffsetFromData.size() > 0){
+		
+				if (TimezoneDaylightCollection[TimezoneDaylightSeek].TimeZoneOffsetFromTokens.size() > 0){
+		
+					DataLine += "TZOFFSETFROM;";
+					DataLine += TimezoneDaylightCollection[TimezoneDaylightSeek].TimeZoneOffsetFromTokens;
+			
+				} else {
+
+					DataLine += "TZOFFSETFROM";
+			
+				}
+
+				DataLine += ":";
+				DataLine += TimezoneDaylightCollection[TimezoneDaylightSeek].TimeZoneOffsetFromData;
+				DataLine += "\n";
+		
+				DataLineProcessed = OutputText(&DataLine);
+		
+				*SaveData += DataLineProcessed;
+		
+				DataLine.clear();
+				DataLineProcessed.clear();
+		
+			}
 				
 			*SaveData += "END:DAYLIGHT\n";
 				
diff --git a/source/tests/xestiacalendar_icaltimezonesave.h b/source/tests/xestiacalendar_icaltimezonesave.h
index f2850a1..06283c1 100644
--- a/source/tests/xestiacalendar_icaltimezonesave.h
+++ b/source/tests/xestiacalendar_icaltimezonesave.h
@@ -66,21 +66,27 @@ TEST(iCalendarSaveTimezone, SaveTimezoneTests){
 	"TZURL;URL=YES:http://www.example.com/\n"
 	"BEGIN:STANDARD\n"
 	"DTSTART:20160204T020000\n"
+	"TZOFFSETFROM:-0500\n"
 	"END:STANDARD\n"
 	"BEGIN:STANDARD\n"
 	"DTSTART;MEEP=MOO:20160205T020000\n"
+	"TZOFFSETFROM;LETS=GO:-0500\n"
 	"END:STANDARD\n"
 	"BEGIN:STANDARD\n"
 	"DTSTART;MEEP=MOO:20160206T020000\n"
+	"TZOFFSETFROM;LETS=GO:-0500\n"
 	"END:STANDARD\n"
 	"BEGIN:DAYLIGHT\n"
 	"DTSTART:20160204T020000\n"
+	"TZOFFSETFROM:-0500\n"
 	"END:DAYLIGHT\n"
 	"BEGIN:DAYLIGHT\n"
 	"DTSTART;MEEP=MOO:20160205T020000\n"
+	"TZOFFSETFROM;LETS=GO:-0500\n"
 	"END:DAYLIGHT\n"
 	"BEGIN:DAYLIGHT\n"
 	"DTSTART;MEEP=MOO:20160206T020000\n"
+	"TZOFFSETFROM;LETS=GO:-0500\n"
 	"END:DAYLIGHT\n"
 	"END:VTIMEZONE\n"
 	"END:VCALENDAR";
-- 
2.39.2