/Scenes/Tests/UIScreenTests.cs

using Delta.Engine;

using Delta.InputSystem;

using Delta.Rendering.Basics.Materials;

using Delta.Scenes.UserInterfaces;

using Delta.Scenes.UserInterfaces.Controls;

using Delta.Utilities.Datatypes;

using NUnit.Framework;



namespace Delta.Scenes.Tests

{

	/// <summary>

	/// UI screen tests

	/// </summary>

	internal static class UIScreenTests

	{

		#region UseSceneBackground (LongRunning)

		/// <summary>

		/// Use scene background

		/// </summary>

		[Test, Category("Visual")]

		public static void UseSceneBackground()

		{

			// Create a UI screen (with starting a new scene)

			Screen mainScreen = new Screen("<TestScreen>")

			{

				// and set the background we want to see

				Background = new Material2DColored(Color.Gold),

			};

			mainScreen.Open();



			Application.Start(delegate

			{

			});

		}

		#endregion



		#region OpenAndClosingOverlayScreen (LongRunning)

		/// <summary>

		/// Open and closing overlay screen

		/// </summary>

		[Test, Category("Visual")]

		public static void OpenAndClosingOverlayScreen()

		{

			// Just create a normal screen (with starting a new scene)

			Screen mainScreen = new Screen("<TestMainScreen>");

			mainScreen.Open();



			// and a overlay screen in it

			Screen overlayScreen = new Screen("<TestOverlayScreen>")

			{

				Scene = mainScreen.Scene,

				IsOverlayScreen = true,

			};

			overlayScreen.Open();



			// Start the application

			Application.Start(delegate

			{

				// and let close the overlay screen by the space key

				// -> the scene shouldn't crash anymore if any e.g. mouse input is done

				if (Input.Keyboard.SpaceReleased)

				{

					overlayScreen.Close();

				} // if

			});

		}

		#endregion



		#region OpenTwoNormalScreens (LongRunning)

		/// <summary>

		/// Open two normal screens

		/// </summary>

		[Test, Category("Visual")]

		public static void OpenTwoNormalScreens()

		{

			// Create and open a normal screen(with starting a new scene)

			Screen firstScreen = new Screen("<FirstScreen>");

			firstScreen.Add(new Label

			{

				Name = "FirstScreenLabel",

				LocalArea = Rectangle.FromCenter(0.5f, 0.45f, 0.2f, 0.05f),

				Text = "First screen",

			});

			firstScreen.Open();



			// and open another one per 'Space' key

			Screen secondScreen = null;



			// Start the application

			Application.Start(delegate

			{

				// and let close the overlay scene by the space key

				// -> the scene shouldn't crash anymore if any e.g. mouse input is done

				if (Input.Keyboard.SpaceReleased)

				{

					// First time open the second screen now

					if (secondScreen == null)

					{

						secondScreen = new Screen("<SecondScreen>");

						secondScreen.Add(new Label

						{

							Name = "SecondScreenLabel",

							LocalArea = Rectangle.FromCenter(0.5f, 0.55f, 0.2f, 0.05f),

							Text = "Second screen",

						});

						secondScreen.Open();

					} // if



						// and close it on the second time again

					else

					{

						secondScreen.Close();

						secondScreen = null;

					} // else

				} // if

			});

		}

		#endregion



		#region SwitchSolidScenes (LongRunning)

		/// <summary>

		/// Switch solid scenes

		/// </summary>

		[Test, Category("Visual")]

		public static void SwitchSolidScenes()

		{

			// Create the (solid) menu screen (with starting a new scene)

			Screen mainScreen = new Screen("<MainScreen>");



			// with a open button

			Button openButton = new Button

			{

				LocalArea = Rectangle.FromCenter(0.25f, 0.5f, 0.3f, 0.05f),

				Text = "Open sub scene",

			};

			// that opens the sub scene on clicking

			openButton.Clicked += delegate(BaseControl sender1, CommandTrigger input)

			{

				#region Opening the sub scene

				// Create the (solid) sub screen

				Screen subScreen = new Screen("<SubScreen>")

				{

					Scene = mainScreen.Scene,

				};



				// with a close button

				Button closeButton = new Button

				{

					LocalArea = Rectangle.FromCenter(0.75f, 0.5f, 0.3f, 0.05f),

					Text = "Close sub scene",

				};

				// that closes the sub scene and jumps back to the main scene on

				// clicking

				closeButton.Clicked += delegate(BaseControl sender2,

					CommandTrigger input2)

				{

					subScreen.Close();

					input2.IsHandled = true;

				};

				subScreen.Add(closeButton);

				subScreen.Open();

				input.IsHandled = true;

				#endregion

			};

			mainScreen.Add(openButton);



			mainScreen.Open();



			// Start the application  

			Application.Start(delegate

			{

				// Now test if even opening the main scene still works after closing

				// the sub-screen by the keyboard (-> reported issue)

				if (Input.Keyboard.SpaceReleased)

				{

					if (Scene.Current.Name.Contains("SubScreen"))

					{

						Scene.Current.Dispose();

					} // if

				} // if

			});

		}

		#endregion

	}

}