From 8ea938f2cd593994ab23a658e0552682b123af05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=8A=B9=EA=B7=BC/Common=20Platform=20Lab=28SR?=
 =?UTF-8?q?=29/Staff=20Engineer/=EC=82=BC=EC=84=B1=EC=A0=84=EC=9E=90?=
 <sngn.lee@samsung.com>
Date: Mon, 30 Aug 2021 13:57:17 +0900
Subject: [PATCH] Replace SkiaGraphicsView with local patch (#135)

This commit will be revert when upstream code is updated
---
 .../GraphicsView/GraphicsViewHandler.Tizen.cs |  1 +
 .../Platform/Tizen/GraphicsViewExtensions.cs  |  1 +
 src/Core/src/Platform/Tizen/MauiShapeView.cs  |  1 +
 .../Platform/Tizen/SkiaGraphicsView.Tizen.cs  | 62 +++++++++++++++++++
 src/Core/src/Platform/Tizen/WrapperView.cs    |  1 +
 5 files changed, 66 insertions(+)
 create mode 100644 src/Core/src/Platform/Tizen/SkiaGraphicsView.Tizen.cs

diff --git a/src/Core/src/Handlers/GraphicsView/GraphicsViewHandler.Tizen.cs b/src/Core/src/Handlers/GraphicsView/GraphicsViewHandler.Tizen.cs
index 361bb245017e..a69a4eae0373 100644
--- a/src/Core/src/Handlers/GraphicsView/GraphicsViewHandler.Tizen.cs
+++ b/src/Core/src/Handlers/GraphicsView/GraphicsViewHandler.Tizen.cs
@@ -1,4 +1,5 @@
 using Microsoft.Maui.Graphics.Skia.Views;
+using SkiaGraphicsView = Microsoft.Maui.Platform.Tizen.SkiaGraphicsView;
 
 namespace Microsoft.Maui.Handlers
 {
diff --git a/src/Core/src/Platform/Tizen/GraphicsViewExtensions.cs b/src/Core/src/Platform/Tizen/GraphicsViewExtensions.cs
index 978262a5c46a..3c05a1324153 100644
--- a/src/Core/src/Platform/Tizen/GraphicsViewExtensions.cs
+++ b/src/Core/src/Platform/Tizen/GraphicsViewExtensions.cs
@@ -1,4 +1,5 @@
 using Microsoft.Maui.Graphics.Skia.Views;
+using SkiaGraphicsView = Microsoft.Maui.Platform.Tizen.SkiaGraphicsView;
 
 namespace Microsoft.Maui
 {
diff --git a/src/Core/src/Platform/Tizen/MauiShapeView.cs b/src/Core/src/Platform/Tizen/MauiShapeView.cs
index 856540085da7..30afef24efa8 100644
--- a/src/Core/src/Platform/Tizen/MauiShapeView.cs
+++ b/src/Core/src/Platform/Tizen/MauiShapeView.cs
@@ -1,5 +1,6 @@
 using ElmSharp;
 using Microsoft.Maui.Graphics.Skia.Views;
+using SkiaGraphicsView = Microsoft.Maui.Platform.Tizen.SkiaGraphicsView;
 
 namespace Microsoft.Maui
 {
diff --git a/src/Core/src/Platform/Tizen/SkiaGraphicsView.Tizen.cs b/src/Core/src/Platform/Tizen/SkiaGraphicsView.Tizen.cs
new file mode 100644
index 000000000000..84cdea6fd9a7
--- /dev/null
+++ b/src/Core/src/Platform/Tizen/SkiaGraphicsView.Tizen.cs
@@ -0,0 +1,62 @@
+#nullable disable
+using ElmSharp;
+using SkiaSharp.Views.Tizen;
+using Microsoft.Maui.Graphics;
+using Microsoft.Maui.Graphics.Skia;
+
+namespace Microsoft.Maui.Platform.Tizen
+{
+	// TODO. Remove it
+	// This class a temporary used, until Microsoft.Maui.Graphics.Skia.Views.SkiaGraphicsView is updated on upstream.
+	public class SkiaGraphicsView : SKCanvasView
+	{
+		private IDrawable _drawable;
+		private SkiaCanvas _canvas;
+		private ScalingCanvas _scalingCanvas;
+
+		public SkiaGraphicsView(EvasObject parent, IDrawable drawable = null) : base(parent)
+		{
+			_canvas = new SkiaCanvas();
+			_scalingCanvas = new ScalingCanvas(_canvas);
+			Drawable = drawable;
+			PaintSurface += OnPaintSurface;
+		}
+
+		public float DeviceScalingFactor { get; set; }
+
+		public IDrawable Drawable
+		{
+			get => _drawable;
+			set
+			{
+				_drawable = value;
+				Invalidate();
+			}
+		}
+
+		protected virtual void OnPaintSurface(object sender, SKPaintSurfaceEventArgs e)
+		{
+			if (_drawable == null) return;
+
+			var skiaCanvas = e.Surface.Canvas;
+			skiaCanvas.Clear();
+
+			_canvas.Canvas = skiaCanvas;
+			_scalingCanvas.ResetState();
+
+			float width = e.Info.Width;
+			float height = e.Info.Height;
+			if (DeviceScalingFactor > 0)
+			{
+				width = width / DeviceScalingFactor;
+				height = height / DeviceScalingFactor;
+			}
+
+			_scalingCanvas.SaveState();
+			if (DeviceScalingFactor > 0)
+				_scalingCanvas.Scale(DeviceScalingFactor, DeviceScalingFactor);
+			_drawable.Draw(_scalingCanvas, new RectangleF(0, 0, width, height));
+			_scalingCanvas.RestoreState();
+		}
+	}
+}
diff --git a/src/Core/src/Platform/Tizen/WrapperView.cs b/src/Core/src/Platform/Tizen/WrapperView.cs
index 65d2faf02527..3aeef68a8d80 100644
--- a/src/Core/src/Platform/Tizen/WrapperView.cs
+++ b/src/Core/src/Platform/Tizen/WrapperView.cs
@@ -7,6 +7,7 @@
 using SkiaSharp.Views.Tizen;
 using Tizen.UIExtensions.Common;
 using Tizen.UIExtensions.ElmSharp;
+using SkiaGraphicsView = Microsoft.Maui.Platform.Tizen.SkiaGraphicsView;
 
 namespace Microsoft.Maui
 {