From 9bc5d74c674b4886f3d0fcadedc2c7114c1e17f0 Mon Sep 17 00:00:00 2001
From: adelikat <adelikat@tasvideos.org>
Date: Sun, 29 Mar 2020 11:44:41 -0500
Subject: [PATCH] DS - add hotkey to toggle video screen options

---
 BizHawk.Client.Common/config/Binding.cs   |  2 ++
 BizHawk.Client.EmuHawk/MainForm.Hotkey.cs | 23 ++++++++++++++++++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/BizHawk.Client.Common/config/Binding.cs b/BizHawk.Client.Common/config/Binding.cs
index c999bb9e3a..3def99d103 100644
--- a/BizHawk.Client.Common/config/Binding.cs
+++ b/BizHawk.Client.Common/config/Binding.cs
@@ -256,6 +256,8 @@ namespace BizHawk.Client.Common
 						Bind("Analog", "X Down Large", toolTip: "For Virtual Pad"),
 
 						Bind("Tools", "Toggle All Cheats"),
+
+						Bind("DS", "Toggle View")
 					};
 
 					// set ordinals based on order in list
diff --git a/BizHawk.Client.EmuHawk/MainForm.Hotkey.cs b/BizHawk.Client.EmuHawk/MainForm.Hotkey.cs
index 045c049fcc..b452f4480b 100644
--- a/BizHawk.Client.EmuHawk/MainForm.Hotkey.cs
+++ b/BizHawk.Client.EmuHawk/MainForm.Hotkey.cs
@@ -1,7 +1,9 @@
-using System.Linq;
+using System;
+using System.Linq;
 
 using BizHawk.Common;
 using BizHawk.Emulation.Common;
+using BizHawk.Emulation.Cores.Consoles.Nintendo.NDS;
 using BizHawk.Emulation.Cores.Nintendo.Gameboy;
 
 namespace BizHawk.Client.EmuHawk
@@ -752,6 +754,25 @@ namespace BizHawk.Client.EmuHawk
 				case "X Down Large":
 					Tools.VirtualPad.BumpAnalogValue(-Config.AnalogLargeChange, null);
 					break;
+
+				// DS
+				case "Toggle View":
+					if (Emulator is MelonDS ds)
+					{
+						var settings = ds.GetSettings();
+						var num = (int)settings.ScreenOptions;
+						num++;
+						var next = (MelonDS.VideoScreenOptions)Enum.Parse(typeof(MelonDS.VideoScreenOptions), num.ToString());
+						if (!typeof(MelonDS.VideoScreenOptions).IsEnumDefined(next))
+						{
+							next = default;
+						}
+
+						settings.ScreenOptions = next;
+						ds.PutSettings(settings);
+					}
+
+					break;
 			}
 
 			return true;