ClemensFischer/XAML-Map-Control
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Attached property MapPanel.MapRect

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ClemensFischer 2026-01-28 15:55:30 +01:00
parent 881b39c4b4
commit 69b105c11f
12 changed files with 150 additions and 96 deletions
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92
MapControl/Shared/MapPanel.cs
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@ -128,6 +128,22 @@ namespace MapControl
element.SetValue(BoundingBoxProperty, value);
}
/// <summary>
/// Gets the MapRect of an element.
/// </summary>
public static MapRect GetMapRect(FrameworkElement element)
{
return (MapRect)element.GetValue(MapRectProperty);
}
/// <summary>
/// Sets the MapRect of an element.
/// </summary>
public static void SetMapRect(FrameworkElement element, MapRect value)
{
element.SetValue(MapRectProperty, value);
}
/// <summary>
/// Gets the view position of an element with Location.
/// </summary>
@ -271,58 +287,66 @@ namespace MapControl
{
element.ClearValue(ViewPositionProperty);
var boundingBox = GetBoundingBox(element);
var mapRect = GetMapRect(element);
if (boundingBox != null)
if (mapRect != null)
{
ArrangeElement(element, boundingBox);
mapRect.Update(parentMap.MapProjection);
ArrangeElement(element, mapRect.Rect, null);
}
else
{
ArrangeElement(element, panelSize);
var boundingBox = GetBoundingBox(element);
if (boundingBox != null)
{
(var rect, var transform) = parentMap.MapProjection.BoundingBoxToMap(boundingBox);
if (rect.HasValue)
{
ArrangeElement(element, rect.Value, transform);
}
}
else
{
ArrangeElement(element, panelSize);
}
}
}
}
private void ArrangeElement(FrameworkElement element, BoundingBox boundingBox)
private void ArrangeElement(FrameworkElement element, Rect mapRect, Matrix? transform)
{
(var mapRect, var transform) = parentMap.MapProjection.BoundingBoxToMap(boundingBox);
var viewRect = GetViewRect(mapRect);
if (mapRect.HasValue)
element.Width = viewRect.Width;
element.Height = viewRect.Height;
element.Arrange(viewRect);
if (parentMap.ViewTransform.Rotation != 0d)
{
var viewRect = GetViewRect(mapRect.Value);
var t = transform ?? new Matrix(1d, 0d, 0d, 1d, 0d, 0d);
t.Rotate(parentMap.ViewTransform.Rotation);
transform = t;
}
element.Width = viewRect.Width;
element.Height = viewRect.Height;
element.Arrange(viewRect);
if (parentMap.ViewTransform.Rotation != 0d)
if (element.RenderTransform is MatrixTransform matrixTransform &&
!matrixTransform.Matrix.IsIdentity) // not default RenderTransform in WPF/UWP/WinUI
{
if (transform.HasValue)
{
if (!transform.HasValue)
{
transform = new Matrix(1d, 0d, 0d, 1d, 0d, 0d);
}
transform.Value.Rotate(parentMap.ViewTransform.Rotation);
matrixTransform.Matrix = transform.Value;
}
if (element.RenderTransform is MatrixTransform matrixTransform &&
!matrixTransform.Matrix.IsIdentity) // not default RenderTransform in WPF/UWP/WinUI
else
{
if (transform.HasValue)
{
matrixTransform.Matrix = transform.Value;
}
else
{
element.ClearValue(RenderTransformProperty);
}
}
else if (transform.HasValue)
{
element.SetRenderTransform(new MatrixTransform { Matrix = transform.Value }, true);
element.ClearValue(RenderTransformProperty);
}
}
else if (transform.HasValue)
{
element.SetRenderTransform(new MatrixTransform { Matrix = transform.Value }, true);
}
}
private static void ArrangeElement(FrameworkElement element, Point position)