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Moved asynchronous image loading to Tile class

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This commit is contained in:
ClemensFischer 2025-09-10 20:09:12 +02:00
parent 2f9c50fb47
commit f4d43eeb44
10 changed files with 114 additions and 184 deletions
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38
MapControl/WPF/Tile.WPF.cs
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@ -1,4 +1,5 @@
using System;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
@ -9,6 +10,30 @@ namespace MapControl
{
public partial class Tile
{
public async Task LoadImageAsync(Func<Task<ImageSource>> loadImageFunc)
{
var image = await loadImageFunc().ConfigureAwait(false);
await Image.Dispatcher.InvokeAsync(
() =>
{
Image.Source = image;
if (image != null && MapBase.ImageFadeDuration > TimeSpan.Zero)
{
if (image is BitmapSource bitmap && !bitmap.IsFrozen && bitmap.IsDownloading)
{
bitmap.DownloadCompleted += BitmapDownloadCompleted;
bitmap.DownloadFailed += BitmapDownloadFailed;
}
else
{
BeginFadeInAnimation();
}
}
});
}
private void BeginFadeInAnimation()
{
var fadeInAnimation = new DoubleAnimation
@ -21,19 +46,6 @@ namespace MapControl
Image.BeginAnimation(UIElement.OpacityProperty, fadeInAnimation);
}
private void FadeIn()
{
if (Image.Source is BitmapSource bitmap && !bitmap.IsFrozen && bitmap.IsDownloading)
{
bitmap.DownloadCompleted += BitmapDownloadCompleted;
bitmap.DownloadFailed += BitmapDownloadFailed;
}
else
{
BeginFadeInAnimation();
}
}
private void BitmapDownloadCompleted(object sender, EventArgs e)
{
var bitmap = (BitmapSource)sender;

17
MapControl/WPF/TileImageLoader.WPF.cs
View file

@ -1,17 +0,0 @@
using System;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Media;
namespace MapControl
{
public partial class TileImageLoader
{
private static async Task LoadTileImage(Tile tile, Func<Task<ImageSource>> loadImageFunc)
{
var image = await loadImageFunc().ConfigureAwait(false);
await tile.Image.Dispatcher.InvokeAsync(() => tile.SetImageSource(image));
}
}
}