QuickLook/QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/Providers/SvgProvider.cs

// Copyright © 2017-2025 QL-Win Contributors
//
// This file is part of QuickLook program.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#if USESVGSKIA

using QuickLook.Common.Helpers;
using QuickLook.Common.Plugin;
using SkiaSharp;
using Svg.Skia;
using System;
using System.IO;
using System.Threading.Tasks;
using System.Windows.Media.Imaging;

namespace QuickLook.Plugin.ImageViewer.AnimatedImage.Providers;

internal class SvgProvider : ImageMagickProvider
{
    public SvgProvider(Uri path, MetaProvider meta, ContextObject contextObject) : base(path, meta, contextObject)
    {
    }

    public override Task<BitmapSource> GetRenderedFrame(int index)
    {
        return new Task<BitmapSource>(() =>
        {
            try
            {
                using var svg = new SKSvg();

                if (svg.Load(Path.LocalPath) is SKPicture picture)
                {
                    using var ms = new MemoryStream();

                    // Render the SVG picture to a bitmap
                    picture.ToImage(ms, SKColors.Empty, SKEncodedImageFormat.Png, 100, 1f, 1f, SKColorType.Rgba8888, SKAlphaType.Unpremul, null);
                    return BitmapFrame.Create(ms, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
                }
            }
            catch (Exception e)
            {
                ProcessHelper.WriteLog(e.ToString());
            }

            // Fallback to basic one
            return base.GetRenderedFrame();
        });
    }
}

#endif