SD2-495, SD2-719. The file extension combo box is now editable in the code template dialog. The code template dialog makes a copy of the code templates so that modifications can be cancelled.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/2.0@1206 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Project/Resources/CodeTemplatePanel.xfrm

@@ -93,7 +93,6 @@
         <TabIndex value="1" />
         <Location value="{X=88,Y=8}" />
         <Size value="{Width=228, Height=21}" />
-        <DropDownStyle value="DropDownList" />
     	<RightToLeft value="No" />
       </System.Windows.Forms.ComboBox>
       <System.Windows.Forms.Label>

src/Main/Base/Project/Src/TextEditor/Gui/OptionPanels/CodeTemplatePanel.cs

@@ -36,7 +36,7 @@ namespace ICSharpCode.SharpDevelop.Gui.OptionPanels
 		
 		public override void LoadPanelContents()
 		{
-			templateGroups = CodeTemplateLoader.TemplateGroups;
+			templateGroups = CopyCodeTemplateGroups(CodeTemplateLoader.TemplateGroups);
 
 			SetupFromXmlStream(this.GetType().Assembly.GetManifestResourceStream("Resources.CodeTemplatePanel.xfrm"));
 			
@@ -250,5 +250,19 @@ namespace ICSharpCode.SharpDevelop.Gui.OptionPanels
 			}
 			IndexChange(this, EventArgs.Empty);
 		}
+		
+		ArrayList CopyCodeTemplateGroups(ArrayList groups)
+		{
+			ArrayList copiedGroups = new ArrayList();
+			foreach (CodeTemplateGroup group in groups) {
+				CodeTemplateGroup newGroup = new CodeTemplateGroup(String.Join(";", group.ExtensionStrings));
+				foreach (CodeTemplate template in group.Templates) {
+					CodeTemplate newTemplate = new CodeTemplate(template.Shortcut, template.Description, template.Text);
+					newGroup.Templates.Add(newTemplate);
+				}
+				copiedGroups.Add(newGroup);
+			}
+			return copiedGroups;
+		}
 	}
 }