Add tablet configuration tests

osu.Game.Tests/Visual/Settings/TestSceneTabletAreaSelection.cs

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+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using NUnit.Framework;
+using OpenTabletDriver.Plugin.Tablet;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.Sprites;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Tests.Visual.Settings
+{
+    [TestFixture]
+    public class TestSceneTabletAreaSelection : OsuTestScene
+    {
+        private TabletAreaSelection areaSelection;
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            DigitizerIdentifier testTablet = new DigitizerIdentifier
+            {
+                // size specifications in millimetres.
+                Width = 160,
+                Height = 100,
+            };
+
+            AddRange(new[]
+            {
+                areaSelection = new TabletAreaSelection(testTablet)
+                {
+                    State = { Value = Visibility.Visible }
+                }
+            });
+        }
+    }
+
+    public class TabletAreaSelection : OsuFocusedOverlayContainer
+    {
+        private readonly DigitizerIdentifier tablet;
+
+        private readonly Container tabletContainer;
+        private readonly Container usableAreaContainer;
+
+        public TabletAreaSelection(DigitizerIdentifier tablet)
+        {
+            RelativeSizeAxes = Axes.Both;
+
+            this.tablet = tablet;
+
+            InternalChildren = new Drawable[]
+            {
+                tabletContainer = new Container
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    Scale = new Vector2(3),
+                    Children = new Drawable[]
+                    {
+                        new Box
+                        {
+                            RelativeSizeAxes = Axes.Both,
+                            Colour = Color4.White,
+                        },
+                        usableAreaContainer = new Container
+                        {
+                            Children = new Drawable[]
+                            {
+                                new Box
+                                {
+                                    RelativeSizeAxes = Axes.Both,
+                                    Colour = Color4.Yellow,
+                                },
+                                new OsuSpriteText
+                                {
+                                    Text = "usable area",
+                                    Anchor = Anchor.Centre,
+                                    Origin = Anchor.Centre,
+                                    Colour = Color4.Black,
+                                    Font = OsuFont.Default.With(size: 12)
+                                }
+                            }
+                        },
+                    }
+                }
+            };
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            // TODO: handle tablet device changes etc.
+            tabletContainer.Size = new Vector2(tablet.Width, tablet.Height);
+
+            usableAreaContainer.Position = new Vector2(10, 30);
+            usableAreaContainer.Size = new Vector2(80, 60);
+        }
+    }
+}