internal void UpdatePosition(VEMap map)
{
if (provider == null)
{
if (this.ContentTemplate != null)
{
DependencyObject depObj = VisualUtility.GetChildByType(this, typeof(ILocationProvider));
provider = depObj as ILocationProvider;
}
if (provider == null && this.Content != null)
{
provider = this.Content as ILocationProvider;
}
if (provider == null)
{
return;
}
}
Canvas.SetZIndex(this, provider.GetZIndex());
Point?position = provider.UpdatePosition(map);
if (!position.HasValue)
{
Canvas.SetLeft(this, -10000);
Canvas.SetTop(this, -10000);
return;
}
Canvas.SetLeft(this, position.Value.X);
Canvas.SetTop(this, position.Value.Y);
}
public virtual Point?UpdatePosition(VEMap map)
{
this._map = map;
return(null);
}
public override Point?UpdatePosition(VEMap map)
{
if (this.Map != map)
{
map.AddRegisteredPosition(this, DisplayLatLong);
isNewPin = false;
}
base.UpdatePosition(map);
VEPushPinAltitudeEvent altEvent;
bool isVisible;
Point?anchorPosition = GetPosition(DisplayLatLong, out altEvent, out isVisible);
if (isVisible)
{
this.SetValue(VEPushPin.VisibilityProperty, Visibility.Visible);
//If transitioning from invisible
if (currentState != VEPushPinState.Visible &&
currentState != VEPushPinState.FadingIn)
{
OnShow();
AnimationClock showClock = AnimateUtility.AnimateElementDouble(this,
VEPushPin.OpacityProperty,
1,
0,
1);
showClock.Completed += new EventHandler(showClock_Completed);
currentState = VEPushPinState.FadingIn;
//If transitioning and has a parent
if (this.ParentPushPin != null &&
(altEvent == VEPushPinAltitudeEvent.TransitionIntoUpperRange))
{
this.DisplayLatitude = this.ParentPushPin.Latitude;
this.DisplayLongitude = this.ParentPushPin.Longitude;
}
if (this.DisplayLatitude != this.Latitude ||
this.DisplayLongitude != this.Longitude)
{
AnimateUtility.AnimateElementDouble(this,
VEPushPin.DisplayLatitudeProperty,
this.Latitude,
0,
1);
AnimateUtility.AnimateElementDouble(this,
VEPushPin.DisplayLongitudeProperty,
this.Longitude,
0,
1);
anchorPosition = GetPosition(DisplayLatLong);
}
}
}
else
{
//If transitioning from Visible
if (currentState != VEPushPinState.Hidden &&
currentState != VEPushPinState.FadingOut)
{
OnHide();
AnimationClock hideClock = AnimateUtility.AnimateElementDouble(this,
VEPushPin.OpacityProperty,
0,
0,
1);
hideClock.Completed += new EventHandler(hideClock_Completed);
currentState = VEPushPinState.FadingOut;
//If transitioning and has a parent
if (this.ParentPushPin != null &&
(altEvent == VEPushPinAltitudeEvent.TransitionAboveUpperRange))
{
AnimateUtility.AnimateElementDouble(this,
VEPushPin.DisplayLatitudeProperty,
this.ParentPushPin.Latitude,
0,
1);
AnimateUtility.AnimateElementDouble(this,
VEPushPin.DisplayLongitudeProperty,
this.ParentPushPin.Longitude,
0,
1);
anchorPosition = GetPosition(DisplayLatLong);
}
else
{
//Not animating, just hide immediately
//this.Visibility = Visibility.Collapsed;
}
}
}
//Update the calculated position
if (anchorPosition == null || !map.IsMapLoaded)
{
this.Visibility = Visibility.Collapsed;
this.Opacity = 0;
this.currentState = VEPushPinState.Hidden;
return(null);
}
if (!this.IsMeasureValid)
{
this.Opacity = 0;
this.currentState = VEPushPinState.Hidden;
return(null);
}
Point anchorOffset = GetAnchorOffset();
double displayLeft = anchorPosition.Value.X - anchorOffset.X;
double displayTop = anchorPosition.Value.Y - anchorOffset.Y;
return(new Point(displayLeft, displayTop));
}
