ClemensFischer/XAML-Map-Control
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Added DependencyPropertyHelper

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ClemensFischer 2024-05-20 23:24:34 +02:00
parent 422f1dce0d
commit 3706709cfc
22 changed files with 967 additions and 1879 deletions
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80
MapControl/Shared/MapPanel.cs
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@ -3,8 +3,14 @@
// Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.Linq;
#if WINUI
#if AVALONIA
using Avalonia.Controls;
using Avalonia.Media;
using DependencyProperty = Avalonia.AvaloniaProperty;
using FrameworkElement = Avalonia.Controls.Control;
using HorizontalAlignment = Avalonia.Layout.HorizontalAlignment;
using VerticalAlignment = Avalonia.Layout.VerticalAlignment;
#elif WINUI
using Windows.Foundation;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
@ -20,6 +26,10 @@ using System.Windows.Controls;
using System.Windows.Media;
#endif
/// <summary>
/// Arranges child elements on a Map at positions specified by the attached property Location,
/// or in rectangles specified by the attached property BoundingBox.
/// </summary>
namespace MapControl
{
/// <summary>
@ -30,19 +40,31 @@ namespace MapControl
MapBase ParentMap { get; set; }
}
/// <summary>
/// Arranges child elements on a Map at positions specified by the attached property Location,
/// or in rectangles specified by the attached property BoundingBox.
/// </summary>
public partial class MapPanel : Panel, IMapElement
{
private static void ParentMapPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
if (obj is IMapElement mapElement)
{
mapElement.ParentMap = e.NewValue as MapBase;
}
}
public static readonly DependencyProperty AutoCollapseProperty =
DependencyPropertyHelper.RegisterAttached<MapPanel, bool>("AutoCollapse");
public static readonly DependencyProperty LocationProperty =
DependencyPropertyHelper.RegisterAttached<MapPanel, Location>("Location", null, false,
(obj, oldVale, newValue) => (obj.Parent as MapPanel)?.InvalidateArrange());
public static readonly DependencyProperty BoundingBoxProperty =
DependencyPropertyHelper.RegisterAttached<MapPanel, BoundingBox>("BoundingBox", null, false,
(obj, oldVale, newValue) => (obj.Parent as MapPanel)?.InvalidateArrange());
private static readonly DependencyProperty ViewPositionProperty =
DependencyPropertyHelper.RegisterAttached<MapPanel, Point?>("ViewPosition");
private static readonly DependencyProperty ParentMapProperty =
DependencyPropertyHelper.RegisterAttached<MapPanel, MapBase>("ParentMap", null, true,
(obj, oldVale, newValue) =>
{
if (obj is IMapElement mapElement)
{
mapElement.ParentMap = newValue;
}
});
private MapBase parentMap;
@ -55,9 +77,6 @@ namespace MapControl
set => SetParentMap(value);
}
public static readonly DependencyProperty AutoCollapseProperty = DependencyProperty.RegisterAttached(
"AutoCollapse", typeof(bool), typeof(MapPanel), new PropertyMetadata(false));
/// <summary>
/// Gets a value that controls whether an element's Visibility is automatically
/// set to Collapsed when it is located outside the visible viewport area.
@ -115,6 +134,16 @@ namespace MapControl
return (Point?)element.GetValue(ViewPositionProperty);
}
/// <summary>
/// Sets the attached ViewPosition property of an element. The method is called during
/// ArrangeOverride and may be overridden to modify the actual view position value.
/// An overridden method should call this method to set the attached property.
/// </summary>
protected virtual void SetViewPosition(FrameworkElement element, ref Point? position)
{
element.SetValue(ViewPositionProperty, position);
}
protected virtual void SetParentMap(MapBase map)
{
if (parentMap != null && parentMap != this)
@ -146,7 +175,7 @@ namespace MapControl
{
availableSize = new Size(double.PositiveInfinity, double.PositiveInfinity);
foreach (var element in Children.OfType<FrameworkElement>())
foreach (var element in ChildElements)
{
element.Measure(availableSize);
}
@ -158,7 +187,7 @@ namespace MapControl
{
if (parentMap != null)
{
foreach (var element in Children.OfType<FrameworkElement>())
foreach (var element in ChildElements)
{
var location = GetLocation(element);
var position = location != null ? GetViewPosition(location) : null;
@ -167,8 +196,7 @@ namespace MapControl
if (GetAutoCollapse(element))
{
element.Visibility = position.HasValue && IsOutsideViewport(position.Value)
? Visibility.Collapsed : Visibility.Visible;
SetVisible(element, !(position.HasValue && IsOutsideViewport(position.Value)));
}
if (position.HasValue)
@ -230,11 +258,11 @@ namespace MapControl
{
var rectCenter = new Point(rect.X + rect.Width / 2d, rect.Y + rect.Height / 2d);
var position = parentMap.ViewTransform.MapToView(rectCenter);
var projection = parentMap.MapProjection;
if (parentMap.MapProjection.Type <= MapProjectionType.NormalCylindrical &&
IsOutsideViewport(position))
if (projection.Type <= MapProjectionType.NormalCylindrical && IsOutsideViewport(position))
{
var location = parentMap.MapProjection.MapToLocation(rectCenter);
var location = projection.MapToLocation(rectCenter);
if (location != null)
{
@ -359,9 +387,7 @@ namespace MapControl
}
else if (rect.Rotation != 0d)
{
rotateTransform = new RotateTransform { Angle = rect.Rotation };
element.RenderTransform = rotateTransform;
element.RenderTransformOrigin = new Point(0.5, 0.5);
SetRenderTransform(element, new RotateTransform { Angle = rect.Rotation }, 0.5, 0.5);
}
}
@ -375,7 +401,7 @@ namespace MapControl
element.Arrange(rect);
}
internal static Size GetDesiredSize(UIElement element)
internal static Size GetDesiredSize(FrameworkElement element)
{
var width = 0d;
var height = 0d;