public MainPage()
{
const float y = 40;
const float canvasInvert = -1;
InitializeComponent();
var canvas = new global::SkiaSharp.Views.Forms.SKCanvasView();
var painter = new SkiaSharp.MathPainter {
LaTeX = @"999999"
};
canvas.PaintSurface += (sender, e) => {
var c = e.Surface.Canvas;
c.Scale(10, 10);
painter.Draw(c, 0, y);
for (int i = 0; i < painter.Display.To <Display.ListDisplay <Fonts, Glyph> >().Displays[0].To <Display.TextLineDisplay <Fonts, Glyph> >().Runs[0].Run.Length; i++)
{
if (painter.Display.PointForIndex(TypesettingContext.Instance, MathListIndex.Level0Index(i)) is System.Drawing.PointF p)
{
c.DrawCircle(p.X, canvasInvert * p.Y, 1, new global::SkiaSharp.SKPaint {
Color = global::SkiaSharp.SKColors.Red
});
}
else
{
System.Diagnostics.Debugger.Break();
}
}
};
Content = canvas;
}
public EditorPage()
{
InitializeComponent();
var view = new global::SkiaSharp.Views.Forms.SKCanvasView {
WidthRequest = 320, HeightRequest = 225
};
var painter = new SkiaSharp.MathPainter {
TextColor = global::SkiaSharp.SKColors.Black
};
var keyboard = new MathKeyboard();
keyboard.RedrawRequested += (_, __) => view.InvalidateSurface();
view.PaintSurface +=
(sender, e) => {
e.Surface.Canvas.Clear();
SkiaSharp.MathPainter.DrawDisplay(painter, keyboard.Display, e.Surface.Canvas);
keyboard.DrawCaret(e.Surface.Canvas, Rendering.CaretShape.UpArrow);
};
Content = new StackLayout {
Children = { view, keyboard }
};
}
