Don't add duplicate references specified in project template (new project instances might come with predefined reference items)

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/2.0@1311 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Project/Src/Gui/Dialogs/NewProjectDialog.cs

@@ -256,23 +256,6 @@ namespace ICSharpCode.SharpDevelop.Project.Dialogs
 			return true;
 		}
 		
-		public void SaveFile(IProject project, string filename, string content, bool showFile)
-		{
-			FileProjectItem newItem = new FileProjectItem(project, ItemType.Compile);
-			newItem.Include = filename;
-			ProjectService.AddProjectItem(project, newItem);
-			
-			StreamWriter sr = File.CreateText(filename);
-			sr.Write(StringParser.Parse(content, new string[,] { {"PROJECT", ((TextBox)ControlDictionary["nameTextBox"]).Text}, {"FILE", Path.GetFileName(filename)}}));
-			sr.Close();
-			
-			if (showFile) {
-				string longfilename = Path.Combine(ProjectSolution, StringParser.Parse(filename, new string[,] { {"PROJECT", ((TextBox)ControlDictionary["nameTextBox"]).Text}}));
-				
-				FileService.OpenFile(longfilename);
-			}
-		}
-		
 		public string NewProjectLocation;
 		public string NewCombineLocation;
 		

src/Main/Base/Project/Src/Internal/Templates/Project/ProjectDescriptor.cs

@@ -142,8 +142,19 @@ namespace ICSharpCode.SharpDevelop.Internal.Templates
 				StringParser.Properties["StandardNamespace"] = project.RootNamespace;
 				// Add Project items
 				foreach (ProjectItem projectItem in projectItems) {
-					projectItem.Project = project;
+					bool itemFound = false;
-					project.Items.Add(projectItem);
+					foreach (ProjectItem existingItem in project.Items) {
+						if (existingItem.ItemType == projectItem.ItemType
+						    && existingItem.Include == projectItem.Include)
+						{
+							itemFound = true;
+							break;
+						}
+					}
+					if (!itemFound) {
+						projectItem.Project = project;
+						project.Items.Add(projectItem);
+					}
 				}
 				
 				// Add Imports