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Improved TileImageLoader

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This commit is contained in:
Clemens 2021-07-05 00:03:44 +02:00
parent fb00a11f4b
commit 5fde94acb9
7 changed files with 88 additions and 60 deletions
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16
MapControl/WinUI/TileImageLoader.WinUI.cs
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@ -2,11 +2,11 @@
// © 2021 Clemens Fischer
// Licensed under the Microsoft Public License (Ms-PL)
using Microsoft.UI.Dispatching;
using Microsoft.UI.Xaml.Media;
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.UI.Dispatching;
using Microsoft.UI.Xaml.Media;
namespace MapControl
{
@ -31,7 +31,7 @@ namespace MapControl
}
/// <summary>
/// An IImageCache implementation used to cache tile images. The default is null.
/// An IImageCache implementation used to cache tile images.
/// </summary>
public static Caching.IImageCache Cache { get; set; }
@ -69,7 +69,7 @@ namespace MapControl
{
var tcs = new TaskCompletionSource();
tile.Image.DispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, async () =>
async void callback()
{
try
{
@ -80,7 +80,13 @@ namespace MapControl
{
tcs.TrySetException(ex);
}
});
}
if (!tile.Image.DispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, callback))
{
tile.Pending = true;
tcs.TrySetResult();
}
return tcs.Task;
}