public void OverlayVisualStateChanged(OverlayControl overlayControl, OverlayInfoState state, IList <OverlayEffectConfiguration> effects)
{
//validate
var overlayInfo = overlayControl?.OverlayInfo;
if (overlayInfo == null || effects == null || effects.Count == 0)
{
return;
}
//update effects
_effectManager.UpdateEffects(overlayInfo, overlayInfo.OverlaySize ?? overlayControl.DefaultOverlaySize, state, _hasPresenterSelected, effects);
}
private void ToolTipControl_Loaded(object sender, RoutedEventArgs e)
{
var fe = sender as FrameworkElement;
double feWidth = fe.DesiredSize.Width;
double feHeight = fe.DesiredSize.Height;
Point?position = null;
_offset = new Point(feWidth / 2, feHeight + 10);
if (_toolTipMode == ToolTipMode.Extended && _overlayRect.HasValue)
{
// tooltip panel
if (_view != null)
{
double x = _overlayRect.Value.X;
double y = _overlayRect.Value.Y;
double width = _overlayRect.Value.Width;
double height = _overlayRect.Value.Height;
double padding = ((height < width) ? height : width) * .1;
x -= padding;
y -= padding;
width += padding * 2;
height += padding * 2;
_view.Width = feWidth;
_view.Height = (height / width) * feWidth;
_imageView.Width = width;
_imageView.Height = height;
_image.RenderTransform = new TranslateTransform()
{
X = -x, Y = -y
};
_offset.Y += _view.Height;
}
// tooltip position
if (!_presenterSelected)
{
Point positionOffset = new Point(0, 0);
if (_overlayPolygon?.Points != null && _overlayPolygon.Points.Any())
{
double renderedImageXTransform = OverlayControl.ActualWidth / _overlaySize.Width;
double renderedImageYTransform = OverlayControl.ActualHeight / _overlaySize.Height;
double polygonMinX = _overlayPolygon.Points.Select(p => p.X).Min();
double polygonMinY = _overlayPolygon.Points.Select(p => p.Y).Min();
double polygonMiddleX = Math.Abs(_overlayPolygon.Points[1].X - _overlayPolygon.Points[0].X) / 2;
double polygonMiddleY = Math.Abs(_overlayPolygon.Points[1].Y - _overlayPolygon.Points[0].Y) / 2;
double xDelta = _overlayPolygon.Points[0].X - polygonMinX;
// get middle position in the top line of polygon
positionOffset.X += (polygonMinX + xDelta + polygonMiddleX) * renderedImageXTransform;
positionOffset.Y += (polygonMinY + polygonMiddleY) * renderedImageYTransform;
}
Point positionPoint = OverlayControl.TransformToVisual(Window.Current.Content).TransformPoint(new Point(0, 0));
positionPoint.X += positionOffset.X;
positionPoint.Y += positionOffset.Y;
position = positionPoint;
}
}
UpdatePosition(!_presenterSelected ? position : null);
}
