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Update MapLayersMenuButton.cs

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ClemensFischer 2022-12-08 17:50:03 +01:00
parent 3344ef73dc
commit 7e7f77afe6
1 changed files with 13 additions and 9 deletions
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22
MapUiTools/Shared/MapLayersMenuButton.cs
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@ -2,6 +2,7 @@
// © 2022 Clemens Fischer
// Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.Linq;
@ -27,6 +28,9 @@ namespace MapControl.UiTools
{
public string Text { get; set; }
public UIElement Layer { get; set; }
public Func<UIElement> LayerFactory { get; set; }
public UIElement GetLayer() => Layer ?? (Layer = LayerFactory?.Invoke());
}
#if WINUI || UWP
@ -67,10 +71,10 @@ namespace MapControl.UiTools
foreach (var item in MapLayers)
{
menu.Items.Add(CreateMenuItem(item.Text, item.Layer, MapLayerClicked));
menu.Items.Add(CreateMenuItem(item.Text, item, MapLayerClicked));
}
var initialLayer = MapLayers.Select(l => l.Layer).FirstOrDefault();
var initialLayer = MapLayers.Select(l => l.GetLayer()).FirstOrDefault();
if (MapOverlays.Count > 0)
{
@ -81,7 +85,7 @@ namespace MapControl.UiTools
foreach (var item in MapOverlays)
{
menu.Items.Add(CreateMenuItem(item.Text, item.Layer, MapOverlayClicked));
menu.Items.Add(CreateMenuItem(item.Text, item, MapOverlayClicked));
}
}
@ -95,17 +99,17 @@ namespace MapControl.UiTools
private void MapLayerClicked(object sender, RoutedEventArgs e)
{
var item = (FrameworkElement)sender;
var layer = (UIElement)item.Tag;
var mapLayerItem = (MapLayerItem)item.Tag;
SetMapLayer(layer);
SetMapLayer(mapLayerItem.GetLayer());
}
private void MapOverlayClicked(object sender, RoutedEventArgs e)
{
var item = (FrameworkElement)sender;
var layer = (UIElement)item.Tag;
var mapLayerItem = (MapLayerItem)item.Tag;
ToggleMapOverlay(layer);
ToggleMapOverlay(mapLayerItem.GetLayer());
}
private void SetMapLayer(UIElement layer)
@ -129,7 +133,7 @@ namespace MapControl.UiTools
{
int index = 1;
foreach (var overlay in MapOverlays.Select(l => l.Layer))
foreach (var overlay in MapOverlays.Select(o => o.Layer).Where(o => o != null))
{
if (overlay == layer)
{
@ -151,7 +155,7 @@ namespace MapControl.UiTools
{
foreach (var item in GetMenuItems())
{
item.IsChecked = Map.Children.Contains((UIElement)item.Tag);
item.IsChecked = Map.Children.Contains(((MapLayerItem)item.Tag).Layer);
}
}
}