XAML-Map-Control/MapControl/WPF/MapPanel.WPF.cs

// XAML Map Control - https://github.com/ClemensFischer/XAML-Map-Control
// Copyright © 2024 Clemens Fischer
// Licensed under the Microsoft Public License (Ms-PL)

using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Media;

namespace MapControl
{
    public partial class MapPanel
    {
        public static readonly DependencyProperty AutoCollapseProperty =
            DependencyPropertyHelper.RegisterAttached<MapPanel, bool>("AutoCollapse");

        public static readonly DependencyProperty LocationProperty =
            DependencyPropertyHelper.RegisterAttached<MapPanel, Location>("Location", null,
                FrameworkPropertyMetadataOptions.AffectsParentArrange);

        public static readonly DependencyProperty BoundingBoxProperty =
            DependencyPropertyHelper.RegisterAttached<MapPanel, BoundingBox>("BoundingBox", null,
                FrameworkPropertyMetadataOptions.AffectsParentArrange);

        public MapPanel()
        {
            if (this is MapBase)
            {
                SetValue(ParentMapProperty, this);
            }
        }

        public static MapBase GetParentMap(FrameworkElement element)
        {
            return (MapBase)element.GetValue(ParentMapProperty);
        }

        public static void SetRenderTransform(FrameworkElement element, Transform transform, double originX = 0d, double originY = 0d)
        {
            element.RenderTransform = transform;
            element.RenderTransformOrigin = new Point(originX, originY);
        }

        protected IEnumerable<FrameworkElement> ChildElements => Children.OfType<FrameworkElement>();

        private static void SetVisible(FrameworkElement element, bool visible)
        {
            element.Visibility = visible ? Visibility.Visible : Visibility.Collapsed;
        }
    }
}