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;
}
void Test(string latex, PointF expected, MathListIndex index)
{
var display = CreateDisplay(latex);
Assert.NotNull(display);
CSharpMath.Tests.Approximately.Equal(expected, display.PointForIndex(TestTypesettingContexts.Instance, index));
}
void Test(string latex, PointF expected, MathListIndex index)
{
var display = CreateDisplay(latex);
Assert.NotNull(display);
var pr = display.PointForIndex(TestTypesettingContexts.Instance, index);
System.Diagnostics.Debug.WriteLine(pr);
CSharpMath.Tests.Approximately.Equal(expected, pr, 0.001);
}
public void ShowRestingPlaceholdersOnCaretVisible()
{
keyboard.KeyPress(MathKeyboardInput.Subscript);
var outer = Assert.IsType <Atom.Atoms.Placeholder>(Assert.Single(keyboard.MathList));
var inner = Assert.IsType <Atom.Atoms.Placeholder>(Assert.Single(outer.Subscript));
Assert.True(keyboard.InsertionPositionHighlighted);
Assert.False(keyboard.ShouldDrawCaret);
keyboard.InsertionIndex = MathListIndex.Level0Index(keyboard.MathList.Count);
Assert.True(keyboard.InsertionPositionHighlighted);
Assert.True(keyboard.ShouldDrawCaret);
Assert.Equal(LaTeXSettings.PlaceholderRestingNucleus, outer.Nucleus);
Assert.Equal(LaTeXSettings.PlaceholderRestingColor, outer.Color);
Assert.Equal(LaTeXSettings.PlaceholderRestingNucleus, inner.Nucleus);
Assert.Equal(LaTeXSettings.PlaceholderRestingColor, inner.Color);
}
void Test(string latex, PointF expected, MathListIndex index) =>
CreateDisplay(latex).Match(
display => CSharpMath.Tests.Approximately.Equal
(expected, display.PointForIndex(TestTypesettingContexts.Instance, index)),
s => throw new Xunit.Sdk.XunitException(s)
