From 838b2866be7e712ba26f06212ac417e54daf5afa Mon Sep 17 00:00:00 2001
From: Quajak <jasper.gerigk@gmx.net>
Date: Mon, 5 Oct 2020 14:21:43 +0200
Subject: [PATCH] Fixed VGACanvas

Mode Property supports changing mode while being active
Disable Method actually reverts to text mode
---
 source/Cosmos.System2/Graphics/VGACanvas.cs | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/source/Cosmos.System2/Graphics/VGACanvas.cs b/source/Cosmos.System2/Graphics/VGACanvas.cs
index aac7203fde..8608bc38b7 100644
--- a/source/Cosmos.System2/Graphics/VGACanvas.cs
+++ b/source/Cosmos.System2/Graphics/VGACanvas.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Text;
 using Cosmos.HAL;
@@ -16,6 +16,7 @@ public class VGACanvas : Canvas
         /// Private boolean whether VGA graphics mode is enabled or not
         /// </summary>
         bool _Enabled;
+        private Mode _Mode;
 
         /// <summary>
         /// The HAL VGA driver
@@ -50,7 +51,14 @@ public VGACanvas() : base()
         /// <summary>
         /// Gets or sets the VGA graphics mode
         /// </summary>
-        public override Mode Mode { get; set; }
+        public override Mode Mode
+        {
+            get => _Mode; set
+            {
+                _VGADriver.SetGraphicsMode(ModeToScreenSize(_Mode), (VGADriver.ColorDepth)(int)_Mode.ColorDepth);
+                _Mode = value;
+            }
+        }
 
         /// <summary>
         /// Clears the screen of all pixels
@@ -59,7 +67,7 @@ public VGACanvas() : base()
         public override void Clear(Color aColor)
         {
             var paletteIndex = _VGADriver.GetClosestColorInPalette(aColor);
-            _VGADriver.DrawFilledRectangle(0,0, _VGADriver.PixelWidth, _VGADriver.PixelHeight, paletteIndex);
+            _VGADriver.DrawFilledRectangle(0, 0, _VGADriver.PixelWidth, _VGADriver.PixelHeight, paletteIndex);
         }
 
         /// <summary>
@@ -69,6 +77,7 @@ public override void Disable()
         {
             if (Enabled)
             {
+                VGAScreen.SetTextMode(TextSize.Size80x25);
                 Enabled = false;
             }
         }
@@ -411,7 +420,7 @@ private ScreenSize ModeToScreenSize(Mode aMode)
 
         public override void Display()
         {
-            
+
         }
     }
 }