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Avalonia: do not coerce default property value

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This commit is contained in:
ClemensFischer 2024-05-24 22:00:16 +02:00
parent 98847f5d86
commit 603a0a7e6f
5 changed files with 21 additions and 20 deletions
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14
MapControl/Avalonia/DependencyPropertyHelper.Avalonia.cs
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@ -19,9 +19,17 @@ namespace MapControl
bool bindTwoWayByDefault = false)
where TOwner : AvaloniaObject
{
var property = AvaloniaProperty.Register<TOwner, TValue>(name, defaultValue, false,
bindTwoWayByDefault ? Avalonia.Data.BindingMode.TwoWay : Avalonia.Data.BindingMode.OneWay, null,
coerce != null ? ((obj, value) => coerce((TOwner)obj, value)) : null);
Func<AvaloniaObject, TValue, TValue> coerceFunc = null;
if (coerce != null)
{
// do not coerce default value
coerceFunc = (obj, value) => value.Equals(defaultValue) ? value : coerce((TOwner)obj, value);
}
var bindingMode = bindTwoWayByDefault ? Avalonia.Data.BindingMode.TwoWay : Avalonia.Data.BindingMode.OneWay;
var property = AvaloniaProperty.Register<TOwner, TValue>(name, defaultValue, false, bindingMode, null, coerceFunc);
if (changed != null)
{

6
MapControl/Avalonia/MapBase.Avalonia.cs
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@ -35,7 +35,7 @@ namespace MapControl
true);
public static readonly StyledProperty<double> MinZoomLevelProperty =
DependencyPropertyHelper.Register<MapBase, double>(nameof(MinZoomLevel), DefaultZoomLevel,
DependencyPropertyHelper.Register<MapBase, double>(nameof(MinZoomLevel), 1d,
(map, oldValue, newValue) => map.MinZoomLevelPropertyChanged(newValue),
(map, value) => map.CoerceMinZoomLevelProperty(value));
@ -45,13 +45,13 @@ namespace MapControl
(map, value) => map.CoerceMaxZoomLevelProperty(value));
public static readonly StyledProperty<double> ZoomLevelProperty =
DependencyPropertyHelper.Register<MapBase, double>(nameof(ZoomLevel), DefaultZoomLevel,
DependencyPropertyHelper.Register<MapBase, double>(nameof(ZoomLevel), 1d,
(map, oldValue, newValue) => map.ZoomLevelPropertyChanged(newValue),
(map, value) => map.CoerceZoomLevelProperty(value),
true);
public static readonly StyledProperty<double> TargetZoomLevelProperty =
DependencyPropertyHelper.Register<MapBase, double>(nameof(TargetZoomLevel), DefaultZoomLevel,
DependencyPropertyHelper.Register<MapBase, double>(nameof(TargetZoomLevel), 1d,
async (map, oldValue, newValue) => await map.TargetZoomLevelPropertyChanged(newValue),
(map, value) => map.CoerceZoomLevelProperty(value),
true);