From 84e388677c0a2ae1e154dfd309434696eeea718f Mon Sep 17 00:00:00 2001
From: Ellpeck <megamaximal@gmail.com>
Date: Fri, 8 Nov 2019 15:35:15 +0100
Subject: [PATCH] added a setfullscreen method

---
 MLEM/Extensions/GraphicsExtensions.cs | 27 +++++++++++++++++++++++++++
 Sandbox/GameImpl.cs                   | 12 ++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 MLEM/Extensions/GraphicsExtensions.cs

diff --git a/MLEM/Extensions/GraphicsExtensions.cs b/MLEM/Extensions/GraphicsExtensions.cs
new file mode 100644
index 0000000..df5faa1
--- /dev/null
+++ b/MLEM/Extensions/GraphicsExtensions.cs
@@ -0,0 +1,27 @@
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+
+namespace MLEM.Extensions {
+    public static class GraphicsExtensions {
+
+        private static int lastWidth;
+        private static int lastHeight;
+
+        public static void SetFullscreen(this GraphicsDeviceManager manager, bool fullscreen) {
+            manager.IsFullScreen = fullscreen;
+            if (fullscreen) {
+                lastWidth = manager.GraphicsDevice.Viewport.Width;
+                lastHeight = manager.GraphicsDevice.Viewport.Height;
+
+                var curr = GraphicsAdapter.DefaultAdapter.CurrentDisplayMode;
+                manager.PreferredBackBufferWidth = curr.Width;
+                manager.PreferredBackBufferHeight = curr.Height;
+            } else {
+                manager.PreferredBackBufferWidth = lastWidth;
+                manager.PreferredBackBufferHeight = lastHeight;
+            }
+            manager.ApplyChanges();
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/Sandbox/GameImpl.cs b/Sandbox/GameImpl.cs
index 12d4dc0..79bac0c 100644
--- a/Sandbox/GameImpl.cs
+++ b/Sandbox/GameImpl.cs
@@ -1,5 +1,8 @@
+using System;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
+using Microsoft.Xna.Framework.Input;
+using MLEM.Extensions;
 using MLEM.Font;
 using MLEM.Startup;
 using MLEM.Textures;
@@ -12,6 +15,9 @@ namespace Sandbox {
 
         public GameImpl() {
             this.IsMouseVisible = true;
+            this.Window.ClientSizeChanged += (o, args) => {
+                Console.WriteLine("Size changed");
+            };
         }
 
         protected override void LoadContent() {
@@ -34,6 +40,12 @@ namespace Sandbox {
             this.UiSystem.Add("Panel", panel);
         }
 
+        protected override void Update(GameTime gameTime) {
+            base.Update(gameTime);
+            if (this.InputHandler.IsKeyPressed(Keys.F11))
+                this.GraphicsDeviceManager.SetFullscreen(!this.GraphicsDeviceManager.IsFullScreen);
+        }
+
         protected override void DoDraw(GameTime gameTime) {
             this.GraphicsDevice.Clear(Color.Black);
             base.DoDraw(gameTime);