private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
double angleFraction = trackbarAngle.Value / (double)trackbarAngle.Maximum;
double angleRadians = 2 * Math.PI * angleFraction;
float angleDegrees = (float)(angleRadians * 180 / Math.PI);
float fontSize = 96;
string fontName = "Impact";
ICanvas canvas = new SkiaCanvas()
{
Canvas = e.Surface.Canvas
};
canvas.FillColor = Colors.Navy;
canvas.FillRectangle(0, 0, skglControl1.Width, skglControl1.Height);
Microsoft.Maui.Graphics.SizeF stringSize = GraphicsPlatform.CurrentService.GetStringSize(tbText.Text, fontName, fontSize);
float rectWidth = stringSize.Width;
float rectHeight = stringSize.Height;
Microsoft.Maui.Graphics.PointF[] rectCorners =
{
new(0, 0),
new(rectWidth, 0),
new(rectWidth, rectHeight),
new(0, rectHeight),
};
private void skglControl1_PaintSurface(object sender, SkiaSharp.Views.Desktop.SKPaintGLSurfaceEventArgs e)
{
float width = skglControl1.Width;
float height = skglControl1.Height;
ICanvas canvas = new SkiaCanvas()
{
Canvas = e.Surface.Canvas
};
canvas.FillColor = Color.FromArgb("#003366");
canvas.FillRectangle(0, 0, width, height);
canvas.FillColor = Colors.LightGreen;
canvas.FillRectangle(0, 0, width * LevelFraction, height);
}
protected virtual void OnPaintSurface(SKPaintGLSurfaceEventArgs e)
{
// invoke the event
PaintSurface?.Invoke(this, e);
}