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[WIP] apng provider

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Paddy Xu
2018-08-28 00:16:25 +03:00
parent ee6bca704d
commit 3bcb48a43c
11 changed files with 163 additions and 103 deletions
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45
QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/ImageMagickProvider.cs
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@@ -17,36 +17,55 @@
using System;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Threading;
namespace QuickLook.Plugin.ImageViewer.AnimatedImage
{
internal class ImageMagickProvider : AnimationProvider
internal class NETImageProvider : AnimationProvider
{
public ImageMagickProvider(string path, NConvert meta, Dispatcher uiDispatcher) : base(path, meta, uiDispatcher)
public NETImageProvider(string path) : base(path)
{
Animator = new Int32AnimationUsingKeyFrames();
Animator.KeyFrames.Add(new DiscreteInt32KeyFrame(0,
KeyTime.FromTimeSpan(TimeSpan.Zero))); // thumbnail/full image
KeyTime.FromTimeSpan(TimeSpan.Zero)));
}
public override Task<BitmapSource> GetThumbnail(Size size, Size fullSize)
{
var factor = Math.Min(size.Width / 2 / fullSize.Width, size.Height / 2 / fullSize.Height);
var decode_width = fullSize.Width * factor;
return new Task<BitmapSource>(() =>
{
var img = new BitmapImage();
img.BeginInit();
img.UriSource = new Uri(Path);
img.CacheOption = BitmapCacheOption.OnLoad;
img.DecodePixelWidth = (int)Math.Floor(decode_width);
img.EndInit();
var scaled = new TransformedBitmap(img, new ScaleTransform(1d / factor, 1d / factor));
scaled.Freeze();
return scaled;
});
}
public override Task<BitmapSource> GetRenderedFrame(int index)
{
return new Task<BitmapSource>(() =>
{
using (var ms = Meta.GetPngStream())
{
var img = new BitmapImage();
img.BeginInit();
img.StreamSource = ms;
img.CacheOption = BitmapCacheOption.OnLoad;
img.EndInit();
img.Freeze();
var img = new BitmapImage();
img.BeginInit();
img.UriSource = new Uri(Path);
img.CacheOption = BitmapCacheOption.OnLoad;
img.EndInit();
return img;
}
img.Freeze();
return img;
});
}