clean up movie saving, dont' pass around a streamwriter

BizHawk.Client.Common/movie/Movie.cs

@@ -780,21 +780,27 @@ namespace BizHawk.Client.Common
 				WriteBinary(fs);
 		}
 
-
 		private void WriteText(Stream stream)
 		{
 			using (StreamWriter sw = new StreamWriter(stream))
 			{
-				Header.WriteText(sw);
+				sw.Write(Header.ToString());
 
 				//TODO: clean this up
-				if (_loopOffset >= 0)
+				if (_loopOffset.HasValue)
 				{
 					sw.WriteLine("LoopOffset " + _loopOffset.ToString());
 				}
 
-				Subtitles.WriteText(sw);
-				_log.WriteText(sw);
+				foreach (var subtitle in Subtitles)
+				{
+					sw.WriteLine(subtitle.ToString());
+				}
+
+				for (int i = 0; i < _log.Length; i++)
+				{
+					sw.WriteLine(_log[i]);
+				}
 			}
 		}
 

BizHawk.Client.Common/movie/MovieHeader.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.IO;
+using System.Text;
 
 namespace BizHawk.Client.Common
 {
@@ -104,22 +105,36 @@ namespace BizHawk.Client.Common
 			HeaderParams[key] = value;
 		}
 
-		public void WriteText(StreamWriter sw)
+		public override string ToString()
 		{
+			StringBuilder sb = new StringBuilder();
+
 			foreach (KeyValuePair<string, string> kvp in HeaderParams)
 			{
-				sw.WriteLine(kvp.Key + " " + kvp.Value);
+				sb
+					.Append(kvp.Key)
+					.Append(' ')
+					.Append(kvp.Value)
+					.AppendLine();
 			}
 
 			foreach (KeyValuePair<string, string> kvp in BoardProperties)
 			{
-				sw.WriteLine(BOARDPROPERTIES + " " + kvp.Key + " " + kvp.Value);
+				sb
+					.Append(BOARDPROPERTIES)
+					.Append(' ')
+					.Append(kvp.Key)
+					.Append(' ')
+					.Append(kvp.Value)
+					.AppendLine();
 			}
 
 			foreach (string t in Comments)
 			{
-				sw.WriteLine(t);
+				sb.AppendLine(t);
 			}
+
+			return sb.ToString();
 		}
 
 		private string ParseHeader(string line, string headerName)

BizHawk.Client.Common/movie/MovieLog.cs

@@ -177,14 +177,6 @@ namespace BizHawk.Client.Common
 			}
 		}
 
-		public void WriteText(StreamWriter sw)
-		{
-			foreach (var record in _movie_records)
-			{
-				sw.WriteLine(record);
-			}
-		}
-
 		public void TruncateMovie(int frame)
 		{
 			if (frame < _movie_records.Count)

BizHawk.Client.Common/movie/SubtitleList.cs

@@ -109,13 +109,5 @@ namespace BizHawk.Client.Common
 
 			_subtitles.RemoveAt(index);
 		}
-
-		public void WriteText(StreamWriter sw)
-		{
-			foreach(var subtitle in _subtitles)
-			{
-				sw.WriteLine(subtitle.ToString());
-			}
-		}
 	}
 }