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Update MapPanel.cs

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ClemensFischer 2023-01-13 18:42:08 +01:00
parent 6a81d192b6
commit 98e77e054e
1 changed files with 55 additions and 48 deletions
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103
MapControl/Shared/MapPanel.cs
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@ -3,7 +3,6 @@
// Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.Diagnostics;
using System.Linq;
#if WINUI
using Windows.Foundation;
@ -37,8 +36,13 @@ namespace MapControl
/// </summary>
public partial class MapPanel : Panel, IMapElement
{
public static readonly DependencyProperty AutoCollapseProperty = DependencyProperty.RegisterAttached(
"AutoCollapse", typeof(bool), typeof(MapPanel), new PropertyMetadata(false));
private static void ParentMapPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
if (obj is IMapElement mapElement)
{
mapElement.ParentMap = e.NewValue as MapBase;
}
}
private MapBase parentMap;
@ -48,6 +52,9 @@ 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.
@ -152,12 +159,7 @@ namespace MapControl
foreach (var element in Children.OfType<FrameworkElement>())
{
var location = GetLocation(element);
Point? position = null;
if (location != null)
{
position = GetViewPosition(location);
}
var position = location != null ? GetViewPosition(location) : null;
SetViewPosition(element, position);
@ -201,7 +203,7 @@ namespace MapControl
return finalSize;
}
protected Point? GetViewPosition(Location location)
protected virtual Point? GetViewPosition(Location location)
{
var position = parentMap.LocationToView(location);
@ -252,34 +254,25 @@ namespace MapControl
return new ViewRect(x, y, width, height, parentMap.ViewTransform.Rotation);
}
private bool IsOutsideViewport(Point point)
protected bool IsOutsideViewport(Point point)
{
return point.X < 0d || point.X > parentMap.RenderSize.Width
|| point.Y < 0d || point.Y > parentMap.RenderSize.Height;
}
private static void ArrangeElement(FrameworkElement element, ViewRect rect)
{
element.Width = rect.Width;
element.Height = rect.Height;
ArrangeElement(element, new Rect(rect.X, rect.Y, rect.Width, rect.Height));
if (element.RenderTransform is RotateTransform rotateTransform)
{
rotateTransform.Angle = rect.Rotation;
}
else if (rect.Rotation != 0d)
{
rotateTransform = new RotateTransform { Angle = rect.Rotation };
element.RenderTransform = rotateTransform;
element.RenderTransformOrigin = new Point(0.5, 0.5);
}
}
private static void ArrangeElement(FrameworkElement element, Point position)
{
var rect = new Rect(position, element.DesiredSize);
var rect = new Rect(position.X, position.Y, 0d, 0d);
if (element.DesiredSize.Width >= 0d && element.DesiredSize.Width < double.PositiveInfinity)
{
rect.Width = element.DesiredSize.Width;
}
if (element.DesiredSize.Height >= 0d && element.DesiredSize.Height < double.PositiveInfinity)
{
rect.Height = element.DesiredSize.Height;
}
switch (element.HorizontalAlignment)
{
@ -314,7 +307,17 @@ namespace MapControl
private static void ArrangeElement(FrameworkElement element, Size parentSize)
{
var rect = new Rect(new Point(), element.DesiredSize);
var rect = new Rect();
if (element.DesiredSize.Width >= 0d && element.DesiredSize.Width < double.PositiveInfinity)
{
rect.Width = element.DesiredSize.Width;
}
if (element.DesiredSize.Height >= 0d && element.DesiredSize.Height < double.PositiveInfinity)
{
rect.Height = element.DesiredSize.Height;
}
switch (element.HorizontalAlignment)
{
@ -355,6 +358,25 @@ namespace MapControl
ArrangeElement(element, rect);
}
private static void ArrangeElement(FrameworkElement element, ViewRect rect)
{
element.Width = rect.Width;
element.Height = rect.Height;
ArrangeElement(element, new Rect(rect.X, rect.Y, rect.Width, rect.Height));
if (element.RenderTransform is RotateTransform rotateTransform)
{
rotateTransform.Angle = rect.Rotation;
}
else if (rect.Rotation != 0d)
{
rotateTransform = new RotateTransform { Angle = rect.Rotation };
element.RenderTransform = rotateTransform;
element.RenderTransformOrigin = new Point(0.5, 0.5);
}
}
private static void ArrangeElement(FrameworkElement element, Rect rect)
{
if (element.UseLayoutRounding)
@ -365,22 +387,7 @@ namespace MapControl
rect.Height = Math.Round(rect.Height);
}
try
{
element.Arrange(rect);
}
catch (Exception ex)
{
Debug.WriteLine($"MapPanel.ArrangeElement: {ex.Message}");
}
}
private static void ParentMapPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
if (obj is IMapElement mapElement)
{
mapElement.ParentMap = e.NewValue as MapBase;
}
element.Arrange(rect);
}
}
}