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ClemensFischer 2026-04-13 17:14:49 +02:00
parent c14377f976
commit 65aba44af6
152 changed files with 11962 additions and 12115 deletions
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129
MapControl/WinUI/ImageTile.WinUI.cs
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@ -16,92 +16,91 @@ using Microsoft.UI.Xaml.Media.Animation;
using Microsoft.UI.Xaml.Media.Imaging;
#endif
namespace MapControl
namespace MapControl;
public class ImageTile(int zoomLevel, int x, int y, int columnCount)
: Tile(zoomLevel, x, y, columnCount)
{
public class ImageTile(int zoomLevel, int x, int y, int columnCount)
: Tile(zoomLevel, x, y, columnCount)
public Image Image { get; } = new Image { Stretch = Stretch.Fill };
public override async Task LoadImageAsync(Func<Task<ImageSource>> loadImageFunc)
{
public Image Image { get; } = new Image { Stretch = Stretch.Fill };
var tcs = new TaskCompletionSource<object>();
public override async Task LoadImageAsync(Func<Task<ImageSource>> loadImageFunc)
async void LoadAndSetImageSource()
{
var tcs = new TaskCompletionSource<object>();
async void LoadAndSetImageSource()
try
{
try
var image = await loadImageFunc();
Image.Source = image;
if (image != null && MapBase.ImageFadeDuration > TimeSpan.Zero)
{
var image = await loadImageFunc();
Image.Source = image;
if (image != null && MapBase.ImageFadeDuration > TimeSpan.Zero)
if (image is BitmapImage bitmap && bitmap.UriSource != null)
{
if (image is BitmapImage bitmap && bitmap.UriSource != null)
{
bitmap.ImageOpened += BitmapImageOpened;
bitmap.ImageFailed += BitmapImageFailed;
}
else
{
BeginFadeInAnimation();
}
bitmap.ImageOpened += BitmapImageOpened;
bitmap.ImageFailed += BitmapImageFailed;
}
else
{
BeginFadeInAnimation();
}
}
tcs.TrySetResult(null);
}
catch (Exception ex)
{
tcs.TrySetException(ex);
}
tcs.TrySetResult(null);
}
catch (Exception ex)
{
tcs.TrySetException(ex);
}
}
#if UWP
if (!await Image.Dispatcher.TryRunAsync(CoreDispatcherPriority.Low, LoadAndSetImageSource))
if (!await Image.Dispatcher.TryRunAsync(CoreDispatcherPriority.Low, LoadAndSetImageSource))
#else
if (!Image.DispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, LoadAndSetImageSource))
if (!Image.DispatcherQueue.TryEnqueue(DispatcherQueuePriority.Low, LoadAndSetImageSource))
#endif
{
tcs.TrySetCanceled();
}
await tcs.Task;
}
private void BeginFadeInAnimation()
{
var fadeInAnimation = new DoubleAnimation
{
From = 0d,
Duration = MapBase.ImageFadeDuration,
FillBehavior = FillBehavior.Stop
};
Storyboard.SetTarget(fadeInAnimation, Image);
Storyboard.SetTargetProperty(fadeInAnimation, nameof(UIElement.Opacity));
var storyboard = new Storyboard();
storyboard.Children.Add(fadeInAnimation);
storyboard.Begin();
tcs.TrySetCanceled();
}
private void BitmapImageOpened(object sender, RoutedEventArgs e)
await tcs.Task;
}
private void BeginFadeInAnimation()
{
var fadeInAnimation = new DoubleAnimation
{
var bitmap = (BitmapImage)sender;
From = 0d,
Duration = MapBase.ImageFadeDuration,
FillBehavior = FillBehavior.Stop
};
bitmap.ImageOpened -= BitmapImageOpened;
bitmap.ImageFailed -= BitmapImageFailed;
Storyboard.SetTarget(fadeInAnimation, Image);
Storyboard.SetTargetProperty(fadeInAnimation, nameof(UIElement.Opacity));
BeginFadeInAnimation();
}
var storyboard = new Storyboard();
storyboard.Children.Add(fadeInAnimation);
storyboard.Begin();
}
private void BitmapImageFailed(object sender, ExceptionRoutedEventArgs e)
{
var bitmap = (BitmapImage)sender;
private void BitmapImageOpened(object sender, RoutedEventArgs e)
{
var bitmap = (BitmapImage)sender;
bitmap.ImageOpened -= BitmapImageOpened;
bitmap.ImageFailed -= BitmapImageFailed;
bitmap.ImageOpened -= BitmapImageOpened;
bitmap.ImageFailed -= BitmapImageFailed;
Image.Source = null;
}
BeginFadeInAnimation();
}
private void BitmapImageFailed(object sender, ExceptionRoutedEventArgs e)
{
var bitmap = (BitmapImage)sender;
bitmap.ImageOpened -= BitmapImageOpened;
bitmap.ImageFailed -= BitmapImageFailed;
Image.Source = null;
}
}