ClemensFischer/XAML-Map-Control
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ClemensFischer 2026-04-13 17:14:49 +02:00
parent c14377f976
commit 65aba44af6
152 changed files with 11962 additions and 12115 deletions
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159
MapControl/Shared/MapItem.cs
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@ -15,101 +15,100 @@ using Avalonia.Controls;
using Avalonia.Media;
#endif
namespace MapControl
namespace MapControl;
/// <summary>
/// Container class for an item in a MapItemsControl.
/// </summary>
public partial class MapItem : ListBoxItem, IMapElement
{
public static readonly DependencyProperty LocationProperty =
DependencyPropertyHelper.AddOwner<MapItem, Location>(
nameof(Location), MapPanel.LocationProperty, (item, _, _) => item.UpdateMapTransform());
public static readonly DependencyProperty AutoCollapseProperty =
DependencyPropertyHelper.AddOwner<MapItem, bool>(
nameof(AutoCollapse), MapPanel.AutoCollapseProperty);
/// <summary>
/// Container class for an item in a MapItemsControl.
/// Gets/sets MapPanel.Location.
/// </summary>
public partial class MapItem : ListBoxItem, IMapElement
public Location Location
{
public static readonly DependencyProperty LocationProperty =
DependencyPropertyHelper.AddOwner<MapItem, Location>(
nameof(Location), MapPanel.LocationProperty, (item, _, _) => item.UpdateMapTransform());
get => (Location)GetValue(LocationProperty);
set => SetValue(LocationProperty, value);
}
public static readonly DependencyProperty AutoCollapseProperty =
DependencyPropertyHelper.AddOwner<MapItem, bool>(
nameof(AutoCollapse), MapPanel.AutoCollapseProperty);
/// <summary>
/// Gets/sets MapPanel.AutoCollapse.
/// </summary>
public bool AutoCollapse
{
get => (bool)GetValue(AutoCollapseProperty);
set => SetValue(AutoCollapseProperty, value);
}
/// <summary>
/// Gets/sets MapPanel.Location.
/// </summary>
public Location Location
/// <summary>
/// Implements IMapElement.ParentMap.
/// </summary>
public MapBase ParentMap
{
get;
set
{
get => (Location)GetValue(LocationProperty);
set => SetValue(LocationProperty, value);
}
/// <summary>
/// Gets/sets MapPanel.AutoCollapse.
/// </summary>
public bool AutoCollapse
{
get => (bool)GetValue(AutoCollapseProperty);
set => SetValue(AutoCollapseProperty, value);
}
/// <summary>
/// Implements IMapElement.ParentMap.
/// </summary>
public MapBase ParentMap
{
get;
set
if (field != null)
{
if (field != null)
{
field.ViewportChanged -= OnViewportChanged;
}
field.ViewportChanged -= OnViewportChanged;
}
field = value;
field = value;
if (field != null && mapTransform != null)
if (field != null && mapTransform != null)
{
// Attach ViewportChanged handler only if MapTransform is actually used.
//
field.ViewportChanged += OnViewportChanged;
UpdateMapTransform();
}
}
}
/// <summary>
/// Gets a Transform for scaling and rotating geometries
/// in map coordinates (meters) to view coordinates (pixels).
/// </summary>
public MatrixTransform MapTransform
{
get
{
if (mapTransform == null)
{
mapTransform = new MatrixTransform();
if (ParentMap != null)
{
// Attach ViewportChanged handler only if MapTransform is actually used.
//
field.ViewportChanged += OnViewportChanged;
ParentMap.ViewportChanged += OnViewportChanged;
UpdateMapTransform();
}
}
}
/// <summary>
/// Gets a Transform for scaling and rotating geometries
/// in map coordinates (meters) to view coordinates (pixels).
/// </summary>
public MatrixTransform MapTransform
{
get
{
if (mapTransform == null)
{
mapTransform = new MatrixTransform();
if (ParentMap != null)
{
ParentMap.ViewportChanged += OnViewportChanged;
UpdateMapTransform();
}
}
return mapTransform;
}
}
private MatrixTransform mapTransform;
private void UpdateMapTransform()
{
if (mapTransform != null && ParentMap != null && Location != null)
{
mapTransform.Matrix = ParentMap.GetMapToViewTransform(Location);
}
}
private void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
UpdateMapTransform();
return mapTransform;
}
}
private MatrixTransform mapTransform;
private void UpdateMapTransform()
{
if (mapTransform != null && ParentMap != null && Location != null)
{
mapTransform.Matrix = ParentMap.GetMapToViewTransform(Location);
}
}
private void OnViewportChanged(object sender, ViewportChangedEventArgs e)
{
UpdateMapTransform();
}
}