ClemensFischer/XAML-Map-Control
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Implemented LocationAnimator

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ClemensFischer 2024-05-21 00:00:30 +02:00
parent 3706709cfc
commit abe3bb75f9
3 changed files with 68 additions and 21 deletions
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40
MapControl/Avalonia/MapBase.Avalonia.cs
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@ -59,11 +59,16 @@ namespace MapControl
static MapBase()
{
Animation.RegisterCustomAnimator<Location, LocationAnimator>();
ClipToBoundsProperty.OverrideDefaultValue(typeof(MapBase), true);
CenterProperty.Changed.AddClassHandler<MapBase, Location>(
(map, args) => map.CenterPropertyChanged(args.NewValue.Value));
TargetCenterProperty.Changed.AddClassHandler<MapBase, Location>(
async (map, args) => await map.TargetCenterPropertyChanged(args.NewValue.Value));
ZoomLevelProperty.Changed.AddClassHandler<MapBase, double>(
(map, args) => map.ZoomLevelPropertyChanged(args.NewValue.Value));
@ -161,6 +166,41 @@ namespace MapControl
if (!internalPropertyChange)
{
UpdateTransform();
if (centerAnimation == null)
{
SetValueInternal(TargetCenterProperty, center);
}
}
}
private async Task TargetCenterPropertyChanged(Location targetCenter)
{
if (!internalPropertyChange && !targetCenter.Equals(Center))
{
centerCts?.Cancel();
centerAnimation = new Animation
{
FillMode = FillMode.Forward,
Duration = AnimationDuration,
Children =
{
new KeyFrame
{
KeyTime = AnimationDuration,
Setters = { new Setter(CenterProperty, new Location(targetCenter.Latitude, ConstrainedLongitude(targetCenter.Longitude))) }
}
}
};
centerCts = new CancellationTokenSource();
await centerAnimation.RunAsync(this, centerCts.Token);
centerCts.Dispose();
centerCts = null;
centerAnimation = null;
}
}