Bugfixes.

ICSharpCode.Decompiler/GraphVizGraph.cs

@@ -93,6 +93,7 @@ namespace ICSharpCode.Decompiler
 		public void Save(TextWriter writer)
 		{
 			writer.WriteLine("digraph G {");
+			writer.WriteLine("node [fontsize = 14.5];");
 			WriteGraphAttribute(writer, "rankdir", rankdir);
 			foreach (GraphVizNode node in nodes) {
 				node.Save(writer);

ILSpy/FilterSettings.cs

@@ -45,12 +45,12 @@ namespace ICSharpCode.ILSpy
 		
 		public bool SearchTermMatches(string text)
 		{
-			if (searchTerm == null)
+			if (string.IsNullOrEmpty(searchTerm))
 				return true;
 			return text.IndexOf(searchTerm, StringComparison.OrdinalIgnoreCase) >= 0;
 		}
 		
-		bool showInternalApi;
+		bool showInternalApi = true;
 		
 		public bool ShowInternalApi {
 			get { return showInternalApi; }

ILSpy/MainWindow.xaml.cs

@@ -138,6 +138,8 @@ namespace ICSharpCode.ILSpy
 		
 		void ShowGraph(string name, GraphVizGraph graph)
 		{
+			foreach (char c in Path.GetInvalidFileNameChars())
+				name = name.Replace(c, '-');
 			string fileName = Path.Combine(Path.GetTempPath(), name);
 			graph.Save(fileName + ".gv");
 			Process.Start("dot", "\"" + fileName + ".gv\" -Tpng -o \"" + fileName + ".png\"").WaitForExit();

ILSpy/TypeTreeNode.cs

@@ -79,7 +79,7 @@ namespace ICSharpCode.ILSpy
 		
 		public override FilterResult Filter(FilterSettings settings)
 		{
-			if (settings.ShowInternalApi == false && IsPublicAPI)
+			if (!settings.ShowInternalApi && !IsPublicAPI)
 				return FilterResult.Hidden;
 			if (settings.SearchTermMatches(type.Name))
 				return FilterResult.Match;