add OS version info to UI Catalog

Terminal.Gui/Terminal.Gui.csproj

@@ -15,6 +15,7 @@
     <InformationalVersion>1.9</InformationalVersion>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.DotNet.PlatformAbstractions" Version="3.1.6" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="all" />
     <PackageReference Include="NStack.Core" Version="1.0.7" />
     <InternalsVisibleTo Include="UnitTests" />

UICatalog/UICatalog.cs

@@ -160,6 +160,7 @@ namespace UICatalog {
 			public StatusItem Numlock;
 			public StatusItem Scrolllock;
 			public StatusItem DriverName;
+			public StatusItem OS;
 
 			public UICatalogTopLevel ()
 			{
@@ -177,19 +178,17 @@ namespace UICatalog {
 							"About UI Catalog", () =>  MessageBox.Query ("About UI Catalog", _aboutMessage.ToString(), "_Ok"), null, null, Key.CtrlMask | Key.A),
 					}),
 				});
-
+				
 				Capslock = new StatusItem (Key.CharMask, "Caps", null);
 				Numlock = new StatusItem (Key.CharMask, "Num", null);
 				Scrolllock = new StatusItem (Key.CharMask, "Scroll", null);
 				DriverName = new StatusItem (Key.CharMask, "Driver:", null);
+				OS = new StatusItem (Key.CharMask, "OS:", null);
 
 				StatusBar = new StatusBar () {
 					Visible = true,
 				};
 				StatusBar.Items = new StatusItem [] {
-					Capslock,
-					Numlock,
-					Scrolllock,
 					new StatusItem(Key.Q | Key.CtrlMask, "~CTRL-Q~ Quit", () => {
 						if (_selectedScenario is null){
 							// This causes GetScenarioToRun to return null
@@ -199,7 +198,7 @@ namespace UICatalog {
 							_selectedScenario.RequestStop();
 						}
 					}),
-					new StatusItem(Key.F10, "~F10~ Hide/Show Status Bar", () => {
+					new StatusItem(Key.F10, "~F10~ Status Bar", () => {
 						StatusBar.Visible = !StatusBar.Visible;
 						LeftPane.Height = Dim.Fill(StatusBar.Visible ? 1 : 0);
 						RightPane.Height = Dim.Fill(StatusBar.Visible ? 1 : 0);
@@ -207,6 +206,10 @@ namespace UICatalog {
 						SetChildNeedsDisplay();
 					}),
 					DriverName,
+					OS,
+					Capslock,
+					Numlock,
+					Scrolllock,
 				};
 
 				LeftPane = new FrameView ("Categories") {
@@ -281,6 +284,7 @@ namespace UICatalog {
 				miIsMouseDisabled.Checked = Application.IsMouseDisabled;
 				miHeightAsBuffer.Checked = Application.HeightAsBuffer;
 				DriverName.Title = $"Driver: {Driver.GetType ().Name}";
+				OS.Title = $"OS: {Microsoft.DotNet.PlatformAbstractions.RuntimeEnvironment.OperatingSystem} {Microsoft.DotNet.PlatformAbstractions.RuntimeEnvironment.OperatingSystemVersion}";
 
 				if (_selectedScenario != null) {
 					_selectedScenario = null;