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Handle frozen Data in WPF MapPath

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ClemensFischer 2022-11-02 23:51:15 +01:00
parent 14c26b34e8
commit 2652e5eb0f
2 changed files with 17 additions and 2 deletions
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9
MapControl/Shared/MapPath.cs
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@ -68,9 +68,16 @@ namespace MapControl
protected virtual void UpdateData() protected virtual void UpdateData()
{ {
#if !WINUI && !UWP
if (Data != null && Data.IsFrozen)
{
Data = Data.Clone();
return; // UpdateData called again from DataPropertyChanged callback
}
#endif
MapPanel.SetLocation(this, Location); MapPanel.SetLocation(this, Location);
if (parentMap != null && Data != null && Location != null) if (parentMap != null && Location != null && Data != null)
{ {
var scale = parentMap.GetScale(Location); var scale = parentMap.GetScale(Location);
var transform = new Matrix(scale.X, 0d, 0d, scale.Y, 0d, 0d); var transform = new Matrix(scale.X, 0d, 0d, scale.Y, 0d, 0d);

10
MapControl/WPF/MapPath.WPF.cs
View file

@ -14,7 +14,15 @@ namespace MapControl
{ {
public partial class MapPath : Shape, IWeakEventListener public partial class MapPath : Shape, IWeakEventListener
{ {
public static readonly DependencyProperty DataProperty = Path.DataProperty.AddOwner(typeof(MapPath)); public static readonly DependencyProperty DataProperty = Path.DataProperty.AddOwner(
typeof(MapPath), new PropertyMetadata(null,
(o, e) =>
{
if (e.NewValue != e.OldValue) // Data is actually a new Geometry
{
((MapPath)o).UpdateData();
}
}));
public Geometry Data public Geometry Data
{ {