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Fix #106: display thumbnails

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This commit is contained in:
Paddy Xu
2017-11-05 02:15:00 +02:00
parent edc073a0ea
commit 24fafc5746
17 changed files with 304 additions and 68 deletions
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78
QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/AnimatedImage.cs
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@@ -16,10 +16,16 @@
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Diagnostics;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Animation;
using System.Windows.Threading;
using QuickLook.Helpers;
using QuickLook.Plugin.ImageViewer.Exiv2;
namespace QuickLook.Plugin.ImageViewer.AnimatedImage
{
@@ -29,7 +35,11 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
DependencyProperty.Register("AnimationUri", typeof(Uri), typeof(AnimatedImage),
new UIPropertyMetadata(null, LoadImage));
private readonly ObjectAnimationUsingKeyFrames _animator = new ObjectAnimationUsingKeyFrames();
public static readonly DependencyProperty MetaProperty =
DependencyProperty.Register("Meta", typeof(Meta), typeof(AnimatedImage));
private ObjectAnimationUsingKeyFrames _animator = new ObjectAnimationUsingKeyFrames();
private bool _disposed;
public Uri AnimationUri
{
@@ -37,11 +47,19 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
set => SetValue(AnimationUriProperty, value);
}
public Meta Meta
{
private get => (Meta) GetValue(MetaProperty);
set => SetValue(MetaProperty, value);
}
public void Dispose()
{
BeginAnimation(SourceProperty, null);
Source = null;
_animator.KeyFrames.Clear();
_disposed = true;
}
private static void LoadImage(DependencyObject obj, DependencyPropertyChangedEventArgs ev)
@@ -50,8 +68,55 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
if (instance == null)
return;
var path = ((Uri) ev.NewValue).LocalPath;
var ext = Path.GetExtension(path).ToLower();
var thumbnail = instance.Meta?.GetThumbnail(true);
instance.Source = thumbnail;
if (thumbnail != null)
LoadFullImageAsync(obj, ev);
else
LoadFullImage(obj, ev);
}
private static void LoadFullImage(DependencyObject obj, DependencyPropertyChangedEventArgs ev)
{
var instance = obj as AnimatedImage;
if (instance == null)
return;
instance._animator = LoadFullImageCore((Uri) ev.NewValue);
instance.BeginAnimation(SourceProperty, instance._animator);
}
private static void LoadFullImageAsync(DependencyObject obj, DependencyPropertyChangedEventArgs ev)
{
Task.Run(() =>
{
var instance = obj as AnimatedImage;
if (instance == null)
return;
var animator = LoadFullImageCore((Uri) ev.NewValue);
instance.Dispatcher.Invoke(DispatcherPriority.Render,
new Action(() =>
{
if (instance._disposed)
{
ProcessHelper.PerformAggressiveGC();
return;
}
instance._animator = animator;
instance.BeginAnimation(SourceProperty, instance._animator);
Debug.WriteLine($"LoadFullImageAsync {Thread.CurrentThread.ManagedThreadId}");
}));
});
}
private static ObjectAnimationUsingKeyFrames LoadFullImageCore(Uri path)
{
var ext = Path.GetExtension(path.LocalPath).ToLower();
IAnimationProvider provider;
@@ -67,10 +132,11 @@ namespace QuickLook.Plugin.ImageViewer.AnimatedImage
provider = new ImageMagickProvider();
break;
}
var animator = new ObjectAnimationUsingKeyFrames();
provider.GetAnimator(animator, path.LocalPath);
animator.Freeze();
provider.GetAnimator(instance._animator, path);
instance.BeginAnimation(SourceProperty, instance._animator);
return animator;
}
}
}