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6 changes: 3 additions & 3 deletions
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CSharpMath.UWPUno.Example/CSharpMath.UWPUno.Example.Droid/Properties/AndroidManifest.xml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="CSharpMath.UWPUno.Example" android:versionCode="1" android:versionName="1.0"> | ||
| <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="29" /> | ||
| <application android:label="CSharpMath.UWPUno.Example"></application> | ||
| </manifest> | ||
| <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="30" /> | ||
| <application android:label="CSharpMath.UWPUno.Example"></application> | ||
| </manifest> |
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18 changes: 18 additions & 0 deletions
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CSharpMath.UWPUno.Example/CSharpMath.UWPUno.Example.Shared/ClockPage.xaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| <Page | ||
| x:Class="CSharpMath.UWPUno.Example.ClockPage" | ||
| xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" | ||
| xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" | ||
| xmlns:local="using:CSharpMath.UWPUno.Example" | ||
| xmlns:d="http://schemas.microsoft.com/expression/blend/2008" | ||
| xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" | ||
| mc:Ignorable="d" | ||
| xmlns:skia="using:SkiaSharp.Views.UWP" | ||
| Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> | ||
|
|
||
| <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> | ||
| <skia:SKXamlCanvas | ||
| x:Name="canvasView" | ||
| VerticalAlignment="Stretch" | ||
| PaintSurface="CanvasView_PaintSurface" /> | ||
| </Grid> | ||
| </Page> |
126 changes: 126 additions & 0 deletions
126
CSharpMath.UWPUno.Example/CSharpMath.UWPUno.Example.Shared/ClockPage.xaml.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Runtime.InteropServices.WindowsRuntime; | ||
| using CSharpMath.SkiaSharp; | ||
| using SkiaSharp; | ||
| using SkiaSharp.Views.UWP; | ||
| using Windows.Foundation; | ||
| using Windows.Foundation.Collections; | ||
| using Windows.UI.Xaml; | ||
| using Windows.UI.Xaml.Controls; | ||
| using Windows.UI.Xaml.Controls.Primitives; | ||
| using Windows.UI.Xaml.Data; | ||
| using Windows.UI.Xaml.Input; | ||
| using Windows.UI.Xaml.Media; | ||
| using Windows.UI.Xaml.Navigation; | ||
| using static System.Math; | ||
|
|
||
| namespace CSharpMath.UWPUno.Example { | ||
| public sealed partial class ClockPage : Page { | ||
| private readonly DispatcherTimer _timer; | ||
|
|
||
| public ClockPage() { | ||
| this.InitializeComponent(); | ||
| _timer = new DispatcherTimer(); | ||
| _timer.Interval = TimeSpan.FromMilliseconds(200); | ||
| _timer.Tick += (s, e) => { | ||
| canvasView.Invalidate(); | ||
| }; | ||
| this.Loaded += ClockPage_Loaded; | ||
| this.Unloaded += ClockPage_Unloaded; | ||
| } | ||
|
|
||
| private void ClockPage_Loaded(object sender, RoutedEventArgs e) { | ||
| _timer.Start(); | ||
| } | ||
|
|
||
| private void ClockPage_Unloaded(object sender, RoutedEventArgs e) { | ||
| _timer.Stop(); | ||
| } | ||
|
|
||
| readonly SKPaint blackFillPaint = new SKPaint { | ||
| Style = SKPaintStyle.Fill, | ||
| Color = SKColors.Black | ||
| }; | ||
| readonly SKPaint whiteFillPaint = new SKPaint { | ||
| Style = SKPaintStyle.Fill, | ||
| Color = SKColors.White | ||
| }; | ||
| readonly SKPaint whiteStrokePaint = new SKPaint { | ||
| Style = SKPaintStyle.Stroke, | ||
| Color = SKColors.White, | ||
| StrokeCap = SKStrokeCap.Round, | ||
| IsAntialias = true | ||
| }; | ||
| readonly SKPaint redStrokePaint = new SKPaint { | ||
| Style = SKPaintStyle.Stroke, | ||
| Color = SKColors.Red, | ||
| StrokeCap = SKStrokeCap.Round, | ||
| IsAntialias = true | ||
| }; | ||
| readonly string[] labels = { | ||
| // Four 4s make 1 to 12 using different operations | ||
| @"$\frac{44+4}{4}$", | ||
| @"$\frac{44}{44}$", | ||
| @"$\frac{4}{4}+\frac{4}{4}$", | ||
| @"$\frac{4+4+4}{4}$", | ||
| @"$4+\frac{4-4}{4}$", | ||
| @"$4+4^{4-4}$", | ||
| @"$4+\frac{4+4}{4}$", | ||
| @"$\frac{44}{4}-4$", | ||
| @"$\sqrt{4}^{4-\frac{4}{4}}$", | ||
| @"$\:\:(4-\frac{4}{4})^{\sqrt{4}}$", | ||
| @"$\frac{44-4}{4}$", | ||
| @"$\frac{4!}{\sqrt{4}}-\frac{4}{4}$" | ||
| }; | ||
| private void CanvasView_PaintSurface(object sender, SKPaintSurfaceEventArgs e) { | ||
| var canvas = e.Surface.Canvas; | ||
| canvas.Clear(SKColors.CornflowerBlue); | ||
| canvas.Translate(e.Info.Width / 2, e.Info.Height / 2); | ||
| canvas.Scale(e.Info.Width / 210f); | ||
| canvas.DrawCircle(0, 0, 100, blackFillPaint); | ||
| var painter = new TextPainter { FontSize = 8, TextColor = SKColors.White }; | ||
| for (int i = 0; i < 60; i++) { | ||
| // Dots | ||
| canvas.Save(); | ||
| canvas.RotateDegrees(6 * i); | ||
| canvas.DrawCircle(0, -90, i % 5 == 0 ? 4 : 2, whiteFillPaint); | ||
| canvas.Restore(); | ||
| // Maths | ||
| if (i % 5 == 0) { | ||
| painter.LaTeX = labels[i / 5]; | ||
| if (!(painter.Measure(e.Info.Width) is { } measure)) | ||
| throw new Structures.InvalidCodePathException("Invalid LaTeX"); | ||
| var θ = (90 - 6 * i) / 180f * PI; | ||
| var sinθ = (float)Sin(θ); | ||
| var cosθ = (float)Cos(θ); | ||
| painter.Draw(canvas, | ||
| new System.Drawing.PointF(75 * cosθ - (float)measure.Width / 2, | ||
| -75 * sinθ - (float)measure.Height / 2), | ||
| float.PositiveInfinity); | ||
| } | ||
| } | ||
| var dateTime = DateTime.Now; | ||
| // H | ||
| canvas.Save(); | ||
| canvas.RotateDegrees(30 * dateTime.Hour + dateTime.Minute / 2f); | ||
| whiteStrokePaint.StrokeWidth = 12; | ||
| canvas.DrawLine(0, 0, 0, -50, whiteStrokePaint); | ||
| canvas.Restore(); | ||
| // M | ||
| canvas.Save(); | ||
| canvas.RotateDegrees(6 * dateTime.Minute + dateTime.Second / 10f); | ||
| whiteStrokePaint.StrokeWidth = 6; | ||
| canvas.DrawLine(0, 0, 0, -65, whiteStrokePaint); | ||
| canvas.Restore(); | ||
| // S | ||
| canvas.Save(); | ||
| canvas.RotateDegrees(6f * (dateTime.Second + dateTime.Millisecond / 1000f)); | ||
| redStrokePaint.StrokeWidth = 2; | ||
| canvas.DrawLine(0, 0, 0, -75, redStrokePaint); | ||
| canvas.Restore(); | ||
| } | ||
| } | ||
| } |
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