Fix #1653: Add "reset to defaults" in options dialog

ILSpy/Options/DecompilerSettingsPanel.xaml.cs

@@ -128,6 +128,12 @@ namespace ICSharpCode.ILSpy.Options
 			CheckBox checkBox = (CheckBox)sender;
 			checkBox.IsChecked = IsGroupChecked((CollectionViewGroup)checkBox.DataContext);
 		}
+
+		public void LoadDefaults()
+		{
+			currentDecompilerSettings = new Decompiler.DecompilerSettings();
+			this.DataContext = new DecompilerSettings(currentDecompilerSettings);
+		}
 	}
 
 	public class DecompilerSettings : INotifyPropertyChanged

ILSpy/Options/DisplaySettings.cs

@@ -29,6 +29,13 @@ namespace ICSharpCode.ILSpy.Options
 	{
 		public DisplaySettings()
 		{
+			this.selectedFont = new FontFamily("Consolas");
+			this.selectedFontSize = 10.0 * 4 / 3;
+			this.sortResults = true;
+			this.indentationUseTabs = true;
+			this.indentationSize = 4;
+			this.indentationTabSize = 4;
+			this.highlightMatchingBraces = true;
 		}
 		
 		#region INotifyPropertyChanged implementation

ILSpy/Options/DisplaySettingsPanel.xaml.cs

@@ -164,6 +164,12 @@ namespace ICSharpCode.ILSpy.Options
 			if (!text.All(char.IsDigit))
 				e.CancelCommand();
 		}
+
+		public void LoadDefaults()
+		{
+			currentDisplaySettings = new DisplaySettings();
+			this.DataContext = currentDisplaySettings;
+		}
 	}
 
 	public class FontSizeConverter : IValueConverter

ILSpy/Options/MiscSettings.cs

@@ -26,6 +26,11 @@ namespace ICSharpCode.ILSpy.Options
 		bool allowMultipleInstances;
 		bool loadPreviousAssemblies;
 
+		public MiscSettings()
+		{
+			this.loadPreviousAssemblies = true;
+		}
+
 		/// <summary>
 		/// Allow multiple instances.
 		/// </summary>

ILSpy/Options/MiscSettingsPanel.xaml.cs

@@ -71,5 +71,11 @@ namespace ICSharpCode.ILSpy.Options
 
 			currentMiscSettings = null; // invalidate cached settings
 		}
+
+		public void LoadDefaults()
+		{
+			currentMiscSettings = new MiscSettings();
+			this.DataContext = currentMiscSettings;
+		}
 	}
 }

ILSpy/Options/OptionsDialog.xaml

@@ -15,8 +15,9 @@
 		</Grid.RowDefinitions>
 		<TabControl Name="tabControl" />
 		<StackPanel Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Right" Margin="12,8">
-			<Button IsDefault="True" Margin="2,0" Name="okButton" Click="OKButton_Click" Content="{x:Static properties:Resources.OK}"></Button>
-			<Button IsCancel="True" Margin="2,0" Content="{x:Static properties:Resources.Cancel}"></Button>
+			<Button Margin="2,0" Name="defaultsButton" Click="DefaultsButton_Click" Content="{x:Static properties:Resources.ResetToDefaults}" />
+			<Button IsDefault="True" Margin="2,0" Name="okButton" Click="OKButton_Click" Content="{x:Static properties:Resources.OK}" />
+			<Button IsCancel="True" Margin="2,0" Content="{x:Static properties:Resources.Cancel}" />
 		</StackPanel>
 	</Grid>
 </Window>

ILSpy/Options/OptionsDialog.xaml.cs

@@ -68,8 +68,17 @@ namespace ICSharpCode.ILSpy.Options
 			this.DialogResult = true;
 			Close();
 		}
+
+		private void DefaultsButton_Click(object sender, RoutedEventArgs e)
+		{
+			if (MessageBox.Show(Properties.Resources.ResetToDefaultsConfirmationMessage, "ILSpy", MessageBoxButton.YesNo) == MessageBoxResult.Yes) {
+				var page = ((TabItem)tabControl.SelectedItem).Content as IOptionPage;
+				if (page != null)
+					page.LoadDefaults();
+			}
+		}
 	}
-	
+
 	public interface IOptionsMetadata
 	{
 		string Title { get; }
@@ -80,6 +89,7 @@ namespace ICSharpCode.ILSpy.Options
 	{
 		void Load(ILSpySettings settings);
 		void Save(XElement root);
+		void LoadDefaults();
 	}
 	
 	[MetadataAttribute]

ILSpy/Properties/Resources.Designer.cs

@@ -1593,6 +1593,24 @@ namespace ICSharpCode.ILSpy.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Reset to defaults.
+        /// </summary>
+        public static string ResetToDefaults {
+            get {
+                return ResourceManager.GetString("ResetToDefaults", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Do you really want to load the default settings for the active page?.
+        /// </summary>
+        public static string ResetToDefaultsConfirmationMessage {
+            get {
+                return ResourceManager.GetString("ResetToDefaultsConfirmationMessage", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Resources file (*.resources)|*.resources|Resource XML file|*.resx.
         /// </summary>

ILSpy/Properties/Resources.resx

@@ -802,4 +802,10 @@ Are you sure you want to continue?</value>
   <data name="DecompilerSettings.SeparateLocalVariableDeclarations" xml:space="preserve">
     <value>Separate local variable declarations and initializers (int x = 5; -&gt; int x; x = 5;), if possible.</value>
   </data>
+  <data name="ResetToDefaults" xml:space="preserve">
+    <value>Reset to defaults</value>
+  </data>
+  <data name="ResetToDefaultsConfirmationMessage" xml:space="preserve">
+    <value>Do you really want to load the default settings for the active page?</value>
+  </data>
 </root>