ClemensFischer/XAML-Map-Control
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GeoImage and GroundOverlay implementation

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ClemensFischer 2024-09-13 23:47:17 +02:00
parent 1b0e73dc35
commit 020a871714
4 changed files with 45 additions and 34 deletions
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31
MapControl/Shared/MapOverlaysPanel.cs
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@ -8,6 +8,7 @@ using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
#if WPF
using System.Windows;
#elif UWP
@ -25,7 +26,7 @@ namespace MapControl
{
public static readonly DependencyProperty SourcePathsProperty =
DependencyPropertyHelper.Register<MapOverlaysPanel, IEnumerable<string>>(nameof(SourcePaths), null,
(control, oldValue, newValue) => control.SourcePathsPropertyChanged(oldValue, newValue));
async (control, oldValue, newValue) => await control.SourcePathsPropertyChanged(oldValue, newValue));
public IEnumerable<string> SourcePaths
{
@ -33,7 +34,7 @@ namespace MapControl
set => SetValue(SourcePathsProperty, value);
}
private void SourcePathsPropertyChanged(IEnumerable<string> oldSourcePaths, IEnumerable<string> newSourcePaths)
private async Task SourcePathsPropertyChanged(IEnumerable<string> oldSourcePaths, IEnumerable<string> newSourcePaths)
{
Children.Clear();
@ -49,16 +50,16 @@ namespace MapControl
newCollection.CollectionChanged += SourcePathsCollectionChanged;
}
AddOverlays(0, newSourcePaths);
await AddOverlays(0, newSourcePaths);
}
}
private void SourcePathsCollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
private async void SourcePathsCollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
switch (args.Action)
{
case NotifyCollectionChangedAction.Add:
AddOverlays(args.NewStartingIndex, args.NewItems.Cast<string>());
await AddOverlays(args.NewStartingIndex, args.NewItems.Cast<string>());
break;
case NotifyCollectionChangedAction.Remove:
@ -67,33 +68,33 @@ namespace MapControl
case NotifyCollectionChangedAction.Move:
RemoveOverlays(args.OldStartingIndex, args.OldItems.Count);
AddOverlays(args.NewStartingIndex, args.NewItems.Cast<string>());
await AddOverlays(args.NewStartingIndex, args.NewItems.Cast<string>());
break;
case NotifyCollectionChangedAction.Replace:
ReplaceOverlays(args.NewStartingIndex, args.NewItems.Cast<string>());
await ReplaceOverlays(args.NewStartingIndex, args.NewItems.Cast<string>());
break;
case NotifyCollectionChangedAction.Reset:
Children.Clear();
AddOverlays(0, SourcePaths);
await AddOverlays(0, SourcePaths);
break;
}
}
private void AddOverlays(int index, IEnumerable<string> sourcePaths)
private async Task AddOverlays(int index, IEnumerable<string> sourcePaths)
{
foreach (var sourcePath in sourcePaths)
{
Children.Insert(index++, CreateOverlay(sourcePath));
Children.Insert(index++, await CreateOverlay(sourcePath));
}
}
private void ReplaceOverlays(int index, IEnumerable<string> sourcePaths)
private async Task ReplaceOverlays(int index, IEnumerable<string> sourcePaths)
{
foreach (var sourcePath in sourcePaths)
{
Children[index++] = CreateOverlay(sourcePath);
Children[index++] = await CreateOverlay(sourcePath);
}
}
@ -105,7 +106,7 @@ namespace MapControl
}
}
protected virtual FrameworkElement CreateOverlay(string sourcePath)
protected virtual async Task<FrameworkElement> CreateOverlay(string sourcePath)
{
FrameworkElement overlay;
var ext = Path.GetExtension(sourcePath).ToLower();
@ -114,11 +115,11 @@ namespace MapControl
{
if (ext == ".kmz" || ext == ".kml")
{
overlay = new GroundOverlay { SourcePath = sourcePath };
overlay = await GroundOverlay.CreateAsync(sourcePath);
}
else
{
overlay = GeoImage.LoadGeoImage(sourcePath);
overlay = await GeoImage.CreateAsync(sourcePath);
}
}
catch (Exception ex)