jellyfin-server/Jellyfin.Drawing.Skia/UnplayedCountIndicator.cs
2019-12-14 12:20:52 +01:00

69 lines
2.2 KiB
C#

using System.Globalization;
using MediaBrowser.Model.Drawing;
using SkiaSharp;
namespace Jellyfin.Drawing.Skia
{
/// <summary>
/// Static helper class for drawing unplayed count indicators.
/// </summary>
public static class UnplayedCountIndicator
{
/// <summary>
/// The x-offset used when drawing an unplayed count indicator.
/// </summary>
private const int OffsetFromTopRightCorner = 38;
/// <summary>
/// Draw an unplayed count indicator in the top right corner of a canvas.
/// </summary>
/// <param name="canvas">The canvas to draw the indicator on.</param>
/// <param name="imageSize">
/// The dimensions of the image to draw the indicator on. The width is used to determine the x-position of the
/// indicator.
/// </param>
/// <param name="count">The number to draw in the indicator.</param>
public static void DrawUnplayedCountIndicator(SKCanvas canvas, ImageDimensions imageSize, int count)
{
var x = imageSize.Width - OffsetFromTopRightCorner;
var text = count.ToString(CultureInfo.InvariantCulture);
using (var paint = new SKPaint())
{
paint.Color = SKColor.Parse("#CC00A4DC");
paint.Style = SKPaintStyle.Fill;
canvas.DrawCircle((float)x, OffsetFromTopRightCorner, 20, paint);
}
using (var paint = new SKPaint())
{
paint.Color = new SKColor(255, 255, 255, 255);
paint.Style = SKPaintStyle.Fill;
paint.TextSize = 24;
paint.IsAntialias = true;
var y = OffsetFromTopRightCorner + 9;
if (text.Length == 1)
{
x -= 7;
}
if (text.Length == 2)
{
x -= 13;
}
else if (text.Length >= 3)
{
x -= 15;
y -= 2;
paint.TextSize = 18;
}
canvas.DrawText(text, (float)x, y, paint);
}
}
}
}