private static void SetBoundingBoxRect(UIElement element, MapBase parentMap, BoundingBox boundingBox)
{
var rotation = 0d;
var viewportPosition = new Point();
if (parentMap != null && boundingBox != null)
{
var projection = parentMap.MapProjection;
var rect = projection.BoundingBoxToRect(boundingBox);
var center = new Point(rect.X + rect.Width / 2d, rect.Y + rect.Height / 2d);
rotation = parentMap.Heading;
viewportPosition = projection.ViewportTransform.Transform(center);
if (viewportPosition.X < 0d || viewportPosition.X > parentMap.RenderSize.Width ||
viewportPosition.Y < 0d || viewportPosition.Y > parentMap.RenderSize.Height)
{
var location = projection.PointToLocation(center);
location.Longitude = Location.NearestLongitude(location.Longitude, parentMap.Center.Longitude);
viewportPosition = projection.LocationToViewportPoint(location);
}
var width = rect.Width * projection.ViewportScale;
var height = rect.Height * projection.ViewportScale;
if (element is FrameworkElement)
{
((FrameworkElement)element).Width = width;
((FrameworkElement)element).Height = height;
}
else
{
element.Arrange(new Rect(-width / 2d, -height / 2d, width, height)); // ???
}
}
var transformGroup = element.RenderTransform as TransformGroup;
RotateTransform rotateTransform;
TranslateTransform translateTransform;
if (transformGroup == null ||
transformGroup.Children.Count != 2 ||
(rotateTransform = transformGroup.Children[0] as RotateTransform) == null ||
(translateTransform = transformGroup.Children[1] as TranslateTransform) == null)
{
transformGroup = new TransformGroup();
rotateTransform = new RotateTransform();
translateTransform = new TranslateTransform();
transformGroup.Children.Add(rotateTransform);
transformGroup.Children.Add(translateTransform);
element.RenderTransform = transformGroup;
element.RenderTransformOrigin = new Point(0.5, 0.5);
}
rotateTransform.Angle = rotation;
translateTransform.X = viewportPosition.X;
translateTransform.Y = viewportPosition.Y;
}
protected override void SetParentMap(MapBase parentMap)
{
if (GetBindingExpression(ForegroundProperty) != null)
{
ClearValue(ForegroundProperty);
}
if (GetBindingExpression(StrokeProperty) != null)
{
ClearValue(StrokeProperty);
}
if (parentMap != null)
{
if (Foreground == null)
{
SetBinding(ForegroundProperty, new Binding
{
Source = parentMap,
Path = new PropertyPath("Foreground")
});
}
if (Stroke == null)
{
SetBinding(StrokeProperty, new Binding
{
Source = parentMap,
Path = new PropertyPath("Foreground")
});
}
}
base.SetParentMap(parentMap);
}
private static void SetViewportPosition(UIElement element, MapBase parentMap, Location location)
{
var viewportPosition = new Point();
if (parentMap != null && location != null)
{
viewportPosition = parentMap.LocationToViewportPoint(location);
if (viewportPosition.X < 0d || viewportPosition.X > parentMap.RenderSize.Width ||
viewportPosition.Y < 0d || viewportPosition.Y > parentMap.RenderSize.Height)
{
viewportPosition = parentMap.LocationToViewportPoint(new Location(
location.Latitude,
Location.NearestLongitude(location.Longitude, parentMap.Center.Longitude)));
}
if ((bool)element.GetValue(UseLayoutRoundingProperty))
{
viewportPosition.X = Math.Round(viewportPosition.X);
viewportPosition.Y = Math.Round(viewportPosition.Y);
}
}
var translateTransform = GetTranslateTransform(element);
translateTransform.X = viewportPosition.X;
translateTransform.Y = viewportPosition.Y;
}
private static Point ArrangeElementWithLocation(FrameworkElement element, MapBase parentMap, Location location)
{
var pos = new Point();
var rect = new Rect(pos, element.DesiredSize);
if (parentMap != null)
{
var projection = parentMap.MapProjection;
pos = projection.LocationToViewportPoint(location);
if (projection.IsNormalCylindrical &&
(pos.X < 0d || pos.X > parentMap.RenderSize.Width ||
pos.Y < 0d || pos.Y > parentMap.RenderSize.Height))
{
pos = projection.LocationToViewportPoint(new Location(
location.Latitude,
Location.NearestLongitude(location.Longitude, parentMap.Center.Longitude)));
}
rect.X = pos.X;
rect.Y = pos.Y;
}
switch (element.HorizontalAlignment)
{
case HorizontalAlignment.Center:
rect.X -= rect.Width / 2d;
break;
case HorizontalAlignment.Right:
rect.X -= rect.Width;
break;
default:
break;
}
switch (element.VerticalAlignment)
{
case VerticalAlignment.Center:
rect.Y -= rect.Height / 2d;
break;
case VerticalAlignment.Bottom:
rect.Y -= rect.Height;
break;
default:
break;
}
if (element.UseLayoutRounding)
{
rect.X = Math.Round(rect.X);
rect.Y = Math.Round(rect.Y);
}
element.Arrange(rect);
return(pos);
}
private static void ArrangeElementWithBoundingBox(FrameworkElement element, MapBase parentMap, BoundingBox boundingBox)
{
var rect = new Rect();
var rotation = 0d;
if (parentMap != null)
{
var projection = parentMap.MapProjection;
rect = projection.BoundingBoxToRect(boundingBox);
var center = new Point(rect.X + rect.Width / 2d, rect.Y + rect.Height / 2d);
var pos = projection.ViewportTransform.Transform(center);
if (projection.IsNormalCylindrical &&
(pos.X < 0d || pos.X > parentMap.RenderSize.Width ||
pos.Y < 0d || pos.Y > parentMap.RenderSize.Height))
{
var location = projection.PointToLocation(center);
location.Longitude = Location.NearestLongitude(location.Longitude, parentMap.Center.Longitude);
pos = projection.LocationToViewportPoint(location);
}
rect.Width *= projection.ViewportScale;
rect.Height *= projection.ViewportScale;
rect.X = pos.X - rect.Width / 2d;
rect.Y = pos.Y - rect.Height / 2d;
if (element.UseLayoutRounding)
{
rect.X = Math.Round(rect.X);
rect.Y = Math.Round(rect.Y);
}
rotation = parentMap.Heading;
}
element.Width = rect.Width;
element.Height = rect.Height;
element.Arrange(rect);
var rotateTransform = element.RenderTransform as RotateTransform;
if (rotateTransform != null)
{
rotateTransform.Angle = rotation;
}
else if (rotation != 0d)
{
rotateTransform = new RotateTransform {
Angle = rotation
};
element.RenderTransform = rotateTransform;
element.RenderTransformOrigin = new Point(0.5, 0.5);
}
}
protected override void SetParentMap(MapBase map)
{
base.SetParentMap(map);
line.SetBinding(Shape.StrokeProperty, this.GetOrCreateBinding(StrokeProperty, nameof(Stroke)));
line.SetBinding(Shape.StrokeThicknessProperty, this.GetOrCreateBinding(StrokeThicknessProperty, nameof(StrokeThickness)));
#if WINUI || UWP
label.SetBinding(TextBlock.ForegroundProperty, this.GetOrCreateBinding(ForegroundProperty, nameof(Foreground)));
#endif
}
private static void SetViewportPosition(UIElement element, MapBase parentMap, Location location)
{
var viewportPosition = new Point();
if (parentMap != null && location != null)
{
viewportPosition = parentMap.MapProjection.LocationToViewportPoint(location);
if (parentMap.MapProjection.IsContinuous &&
(viewportPosition.X < 0d || viewportPosition.X > parentMap.RenderSize.Width ||
viewportPosition.Y < 0d || viewportPosition.Y > parentMap.RenderSize.Height))
{
viewportPosition = parentMap.MapProjection.LocationToViewportPoint(new Location(
location.Latitude,
Location.NearestLongitude(location.Longitude, parentMap.Center.Longitude)));
}
if ((bool)element.GetValue(UseLayoutRoundingProperty))
{
viewportPosition.X = Math.Round(viewportPosition.X);
viewportPosition.Y = Math.Round(viewportPosition.Y);
}
}
var translateTransform = element.RenderTransform as TranslateTransform;
if (translateTransform == null)
{
var transformGroup = element.RenderTransform as TransformGroup;
if (transformGroup == null)
{
translateTransform = new TranslateTransform();
element.RenderTransform = translateTransform;
}
else
{
if (transformGroup.Children.Count > 0)
{
translateTransform = transformGroup.Children[transformGroup.Children.Count - 1] as TranslateTransform;
}
if (translateTransform == null)
{
translateTransform = new TranslateTransform();
transformGroup.Children.Add(translateTransform);
}
}
}
translateTransform.X = viewportPosition.X;
translateTransform.Y = viewportPosition.Y;
}
protected override void SetParentMap(MapBase map)
{
if (map != null)
{
// If this.Forground is not explicitly set, bind it to map.Foreground
this.SetBindingOnUnsetProperty(ForegroundProperty, map, MapBase.ForegroundProperty, nameof(Foreground));
// If this.Stroke is not explicitly set, bind it to this.Foreground
this.SetBindingOnUnsetProperty(StrokeProperty, this, ForegroundProperty, nameof(Foreground));
}
base.SetParentMap(map);
}
protected override void SetParentMap(MapBase parentMap)
{
if (parentMap != null && Foreground == null)
{
SetBinding(ForegroundProperty, new Binding
{
Source = parentMap,
Path = new PropertyPath("Foreground")
});
}
base.SetParentMap(parentMap);
}
protected virtual void SetParentMap(MapBase map)
{
if (parentMap != null && parentMap != this)
{
parentMap.ViewportChanged -= OnViewportChanged;
}
parentMap = map;
if (parentMap != null && parentMap != this)
{
parentMap.ViewportChanged += OnViewportChanged;
OnViewportChanged(new ViewportChangedEventArgs());
}
}
protected virtual void SetParentMapOverride(MapBase map)
{
if (parentMap != null && parentMap != this)
{
parentMap.ViewportChanged -= OnViewportChanged;
}
parentMap = map;
if (parentMap != null && parentMap != this)
{
parentMap.ViewportChanged += OnViewportChanged;
OnViewportChanged();
}
}
private static void SetViewportPosition(UIElement element, MapBase parentMap, Location location)
{
var viewportPosition = new Point();
if (parentMap != null && location != null)
{
var mapPosition = parentMap.MapTransform.Transform(location, parentMap.Center.Longitude); // nearest to center longitude
viewportPosition = parentMap.ViewportTransform.Transform(mapPosition);
if ((bool)element.GetValue(FrameworkElement.UseLayoutRoundingProperty))
{
viewportPosition.X = Math.Round(viewportPosition.X);
viewportPosition.Y = Math.Round(viewportPosition.Y);
}
}
var translateTransform = element.RenderTransform as TranslateTransform;
if (translateTransform == null)
{
var transformGroup = element.RenderTransform as TransformGroup;
if (transformGroup == null)
{
translateTransform = new TranslateTransform();
element.RenderTransform = translateTransform;
}
else
{
if (transformGroup.Children.Count > 0)
{
translateTransform = transformGroup.Children[transformGroup.Children.Count - 1] as TranslateTransform;
}
if (translateTransform == null)
{
translateTransform = new TranslateTransform();
transformGroup.Children.Add(translateTransform);
}
}
}
translateTransform.X = viewportPosition.X;
translateTransform.Y = viewportPosition.Y;
}
private static MapBase FindParentMap(UIElement element)
{
MapBase parentMap = null;
var parentElement = VisualTreeHelper.GetParent(element) as UIElement;
if (parentElement != null)
{
parentMap = parentElement as MapBase;
if (parentMap == null)
{
parentMap = GetParentMap(parentElement);
}
}
return(parentMap);
}
private static void SetViewportPosition(UIElement element, MapBase parentMap, Location location)
{
Point viewportPosition;
if (parentMap != null && location != null)
{
// keep viewport position near map center
var mapPosition = parentMap.MapTransform.Transform(location, parentMap.Center.Longitude);
viewportPosition = parentMap.ViewportTransform.Transform(mapPosition);
element.SetValue(ViewportPositionProperty, viewportPosition);
}
else
{
viewportPosition = new Point();
element.ClearValue(ViewportPositionProperty);
}
var translateTransform = element.RenderTransform as TranslateTransform;
if (translateTransform == null)
{
var transformGroup = element.RenderTransform as TransformGroup;
if (transformGroup == null)
{
translateTransform = new TranslateTransform();
element.RenderTransform = translateTransform;
}
else
{
if (transformGroup.Children.Count > 0)
{
translateTransform = transformGroup.Children[transformGroup.Children.Count - 1] as TranslateTransform;
}
if (translateTransform == null)
{
translateTransform = new TranslateTransform();
transformGroup.Children.Add(translateTransform);
}
}
}
translateTransform.X = viewportPosition.X;
translateTransform.Y = viewportPosition.Y;
}
protected override void SetParentMap(MapBase map)
{
if (map != null)
{
if (Foreground == null)
{
SetBinding(ForegroundProperty,
map.GetBindingExpression(MapBase.ForegroundProperty)?.ParentBinding ??
new Binding {
Source = map, Path = new PropertyPath("Foreground")
});
}
if (Stroke == null)
{
SetBinding(StrokeProperty, GetBinding(ForegroundProperty, nameof(Foreground)));
}
}
base.SetParentMap(map);
}
protected override void SetParentMapOverride(MapBase parentMap)
{
if (foregroundBinding != null)
{
foregroundBinding = null;
ClearValue(ForegroundProperty);
}
if (strokeBinding != null)
{
strokeBinding = null;
ClearValue(StrokeProperty);
}
if (parentMap != null)
{
if (Foreground == null)
{
foregroundBinding = new Binding
{
Source = parentMap,
Path = new PropertyPath("Foreground")
};
SetBinding(ForegroundProperty, foregroundBinding);
}
if (Stroke == null)
{
strokeBinding = new Binding
{
Source = parentMap,
Path = new PropertyPath("Foreground")
};
SetBinding(StrokeProperty, strokeBinding);
}
}
base.SetParentMapOverride(parentMap);
}
protected override void SetParentMapOverride(MapBase parentMap)
{
if (foregroundBinding != null)
{
foregroundBinding = null;
ClearValue(ForegroundProperty);
}
if (strokeBinding != null)
{
strokeBinding = null;
ClearValue(StrokeProperty);
}
if (parentMap != null)
{
if (Foreground == null)
{
foregroundBinding = new Binding
{
Source = parentMap,
Path = new PropertyPath("Foreground")
};
SetBinding(ForegroundProperty, foregroundBinding);
}
if (Stroke == null)
{
strokeBinding = new Binding
{
Source = parentMap,
Path = new PropertyPath("Foreground")
};
SetBinding(StrokeProperty, strokeBinding);
}
}
base.SetParentMapOverride(parentMap);
}
private static void SetViewportPosition(UIElement element, MapBase parentMap, Location location)
{
var viewportPosition = new Point();
if (parentMap != null && location != null)
{
var mapPosition = parentMap.MapTransform.Transform(location, parentMap.Center.Longitude); // nearest to center longitude
viewportPosition = parentMap.ViewportTransform.Transform(mapPosition);
if ((bool)element.GetValue(FrameworkElement.UseLayoutRoundingProperty))
{
viewportPosition.X = Math.Round(viewportPosition.X);
viewportPosition.Y = Math.Round(viewportPosition.Y);
}
}
var translateTransform = element.RenderTransform as TranslateTransform;
if (translateTransform == null)
{
var transformGroup = element.RenderTransform as TransformGroup;
if (transformGroup == null)
{
translateTransform = new TranslateTransform();
element.RenderTransform = translateTransform;
}
else
{
if (transformGroup.Children.Count > 0)
{
translateTransform = transformGroup.Children[transformGroup.Children.Count - 1] as TranslateTransform;
}
if (translateTransform == null)
{
translateTransform = new TranslateTransform();
transformGroup.Children.Add(translateTransform);
}
}
}
translateTransform.X = viewportPosition.X;
translateTransform.Y = viewportPosition.Y;
}
protected virtual void SetParentMapOverride(MapBase map)
{
if (parentMap != null && parentMap != this)
{
parentMap.ViewportChanged -= OnViewportChanged;
}
parentMap = map;
if (parentMap != null && parentMap != this)
{
parentMap.ViewportChanged += OnViewportChanged;
OnViewportChanged();
}
}
void IMapElement.SetParentMap(MapBase map)
{
SetParentMapOverride(map);
}
private static void SetViewportPosition(UIElement element, MapBase parentMap, Location location)
{
Point viewportPosition;
if (parentMap != null && location != null)
{
var mapPosition = parentMap.MapTransform.Transform(location, parentMap.Center.Longitude); // nearest to center longitude
viewportPosition = parentMap.ViewportTransform.Transform(mapPosition);
element.SetValue(ViewportPositionProperty, viewportPosition);
}
else
{
viewportPosition = new Point();
element.ClearValue(ViewportPositionProperty);
}
var translateTransform = element.RenderTransform as TranslateTransform;
if (translateTransform == null)
{
var transformGroup = element.RenderTransform as TransformGroup;
if (transformGroup == null)
{
translateTransform = new TranslateTransform();
element.RenderTransform = translateTransform;
}
else
{
if (transformGroup.Children.Count > 0)
{
translateTransform = transformGroup.Children[transformGroup.Children.Count - 1] as TranslateTransform;
}
if (translateTransform == null)
{
translateTransform = new TranslateTransform();
transformGroup.Children.Add(translateTransform);
}
}
}
translateTransform.X = viewportPosition.X;
translateTransform.Y = viewportPosition.Y;
}
void IMapElement.SetParentMap(MapBase map)
{
parentMap = map;
UpdateData();
}