private void OnPainting(object sender, SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear(SKColors.White);
var size = CanvasSize;
var fontAwesome = Text;
using (var textPaint = new SKPaint())
{
textPaint.IsAntialias = true;
textPaint.TextSize = FontSize;
textPaint.Typeface = SKTypeface.FromFamilyName("Arial");
// create the lookup table
var lookup = new SKTextRunLookup();
// add FontAwesome
lookup.AddTypeface(new FontAwesomeLookupEntry());
// it may be better to cache this using the:
var runs = SKTextRun.Create(Text, lookup);
var padding = 0;
var yOffset = padding + textPaint.TextSize;
SKRect textBounds = new SKRect();
textPaint.MeasureText(Text, ref textBounds);
float margin = (info.Width - textBounds.Width) / 2;
float px = margin + textBounds.Width / 2;
float py = margin + textBounds.Height / 2;
canvas.DrawText(runs, padding, yOffset, textPaint);
// the DrawIconifiedText method will re-calculate the text runs
//canvas.DrawIconifiedText(Text, padding, yOffset, textPaint);
}
}
private void OnPainting(object sender, SKPaintSurfaceEventArgs e)
{
var surface = e.Surface;
var canvas = surface.Canvas;
canvas.Clear(SKColors.White);
var fontAwesome = "I {{fa-heart-o color=ff0000}} to {{fa-code}} on {{fa-windows color=1BA1E2}}!";
var ionIcons = "{{ion-ios-cloud-download-outline color=0000ff}} the SkiaSharp source from {{ion-social-github}}.";
var materialDesignIcons = "SkiaSharp works on {{mdi-apple}}, {{mdi-android color=a4c639}}, {{mdi-windows}} and {{mdi-linux}}!";
var materialIcons = "SkiaSharp supports {{brush}} and {{photo color=006400}}!";
var meteocons = "We love the {{mc-sun color=f9d71c}} and some {{mc-cloud-double-o}} s.";
var simple = "We all {{icon-heart color=ff0000}} a {{icon-present}}!";
var typicons = "SkiaSharp runs on {{typcn-device-desktop}}, {{typcn-device-laptop}}, {{typcn-device-phone}} and {{typcn-device-tablet}} devices!";
var weather = "An {{wi-solar-eclipse}} is when the {{wi-day-sunny color=f9d71c}} is hidden.";
using (var lookup = new SKTextRunLookup())
using (var textPaint = new SKPaint())
{
// the lookup does not have to be re-created on each draw
// instead, it can be created and re-used
FontAwesome.AddTo(lookup);
IonIcons.AddTo(lookup);
MaterialDesignIcons.AddTo(lookup);
MaterialIcons.AddTo(lookup);
Meteocons.AddTo(lookup);
SimpleLineIcons.AddTo(lookup);
Typicons.AddTo(lookup);
WeatherIcons.AddTo(lookup);
textPaint.IsAntialias = true;
textPaint.TextSize = 48;
textPaint.Typeface = SKTypeface.FromFamilyName("Arial");
// the DrawIconifiedText method will re-calculate the text runs
// it may be better to cache this using the:
// var runs = SKTextRun.Create(text, lookup);
// and then drawing it using the DrawText method.
var padding = 24;
var yOffset = padding + textPaint.TextSize;
canvas.DrawIconifiedText(fontAwesome, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
canvas.DrawIconifiedText(ionIcons, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
canvas.DrawIconifiedText(materialDesignIcons, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
canvas.DrawIconifiedText(materialIcons, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
canvas.DrawIconifiedText(meteocons, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
canvas.DrawIconifiedText(simple, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
canvas.DrawIconifiedText(typicons, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
canvas.DrawIconifiedText(weather, padding, yOffset, lookup, textPaint);
yOffset += padding + textPaint.TextSize;
}
}
