[PATCH] F-spot: Allow dates before 1970

[Fredrik Noring <noring nocrew org>]

Hi Larry

Attached is my second patch that tries to address a problem with photos
dated before 1970. This version implements negative unix time integers
so that old databases will remain compatible with the patch applied.

 Db.cs          |    6 +++---
 ImportStore.cs |    4 ++--
 PhotoStore.cs  |    6 +++---
 3 files changed, 8 insertions(+), 8 deletions(-)

Please consider applying it in some form.

Thanks,
Fredrik

--- f-spot-0.0.13.orig/src/Db.cs	2005-02-14 07:15:00.000000000 +0100
+++ f-spot-0.0.13.new/src/Db.cs	2005-07-10 21:13:40.000000000 +0200
@@ -168,14 +168,14 @@
 
 
 public class DbUtils {
-	public static DateTime DateTimeFromUnixTime (uint unix_time)
+	public static DateTime DateTimeFromUnixTime (long unix_time)
 	{
 		DateTime date_time = new DateTime (1970, 1, 1).ToLocalTime ();
 		return date_time.AddSeconds (unix_time);
 	}
 
-	public static uint UnixTimeFromDateTime (DateTime date_time)
+	public static long UnixTimeFromDateTime (DateTime date_time)
 	{
-		return (uint) (date_time - new DateTime (1970, 1, 1).ToLocalTime ()).TotalSeconds;
+		return (long) (date_time - new DateTime (1970, 1, 1).ToLocalTime ()).TotalSeconds;
 	}
 }
--- f-spot-0.0.13.orig/src/ImportStore.cs	2003-11-22 19:47:20.000000000 +0100
+++ f-spot-0.0.13.new/src/ImportStore.cs	2005-07-10 21:13:07.000000000 +0200
@@ -15,7 +15,7 @@
 			}
 		}
 
-		public Import (uint id, uint unix_time)
+		public Import (uint id, long unix_time)
 			: base (id)
 		{
 			time = DbUtils.DateTimeFromUnixTime (unix_time);
@@ -51,7 +51,7 @@
 
 	public Import Create (DateTime time_in_utc)
 	{
-		uint unix_time = DbUtils.UnixTimeFromDateTime (time_in_utc);
+		long unix_time = DbUtils.UnixTimeFromDateTime (time_in_utc);
 
 		SqliteCommand command = new SqliteCommand ();
 		command.Connection = Connection;
--- f-spot-0.0.13.orig/src/PhotoStore.cs	2005-05-09 07:52:29.000000000 +0200
+++ f-spot-0.0.13.new/src/PhotoStore.cs	2005-07-10 21:14:45.000000000 +0200
@@ -361,7 +361,7 @@
 
 
 	// Constructor
-	public Photo (uint id, uint unix_time, string directory_path, string name)
+	public Photo (uint id, long unix_time, string directory_path, string name)
 		: base (id)
 	{
 		time = DbUtils.DateTimeFromUnixTime (unix_time);
@@ -376,7 +376,7 @@
 		AddVersionUnsafely (OriginalVersionId, "Original");
 	}
 
-	public Photo (uint id, uint unix_time, string path)
+	public Photo (uint id, long unix_time, string path)
 		: this (id, unix_time,
 			System.IO.Path.GetDirectoryName (path),
 			System.IO.Path.GetFileName (path))
@@ -517,7 +517,7 @@
 			throw new Exception ("Only jpeg files supported");
 
 
-		uint unix_time = DbUtils.UnixTimeFromDateTime (time_in_utc);
+		long unix_time = DbUtils.UnixTimeFromDateTime (time_in_utc);
 
 		SqliteCommand command = new SqliteCommand ();
 		command.Connection = Connection;