QuickLook/QuickLook.Plugin/QuickLook.Plugin.ThumbnailViewer/Helper.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/>.

using System.IO;
using System.Windows.Media.Imaging;

namespace QuickLook.Plugin.ThumbnailViewer;

internal static class Helper
{
    public static BitmapImage ReadAsBitmapImage(this Stream imageData)
    {
        imageData.Seek(0U, SeekOrigin.Begin);

        BitmapImage bitmap = new();
        bitmap.BeginInit();
        bitmap.CacheOption = BitmapCacheOption.OnLoad;
        bitmap.StreamSource = imageData;
        bitmap.EndInit();
        bitmap.Freeze();
        return bitmap;
    }
}