public void Return(GazeFeedbackControl control)
{
var popup = (Popup)control.Parent;
popup.IsOpen = false;
_cache.Add(popup);
}
public GazeFeedbackControl Get(FrameworkElement element, double left, double top, double width, double height)
{
Popup popup;
GazeFeedbackControl control;
if (_cache.Count != 0)
{
popup = _cache[0];
_cache.RemoveAt(0);
control = (GazeFeedbackControl)popup.Child;
}
else
{
control = new GazeFeedbackControl();
popup = new Popup
{
#if WINDOWS_UWP
#else
AllowsTransparency = true,
Placement = PlacementMode.Absolute,
#endif
Child = control
};
}
#if WINDOWS_UWP
var transform = element.TransformToVisual(popup);
var bounds = transform.TransformBounds(new Rect(
new Point(left, top),
new Size(width, height)));
#else
var controlLeftTop = element.PointToScreen(new Point(left, top));
var controlRightBottom = element.PointToScreen(new Point(left + width, top + height));
controlLeftTop = new Point(controlLeftTop.X * _scalingX, controlLeftTop.Y * _scalingY);
controlRightBottom = new Point(controlRightBottom.X * _scalingX, controlRightBottom.Y * _scalingY);
var bounds = new Rect(controlLeftTop, controlRightBottom);
#endif
popup.HorizontalOffset = bounds.Left;
popup.VerticalOffset = bounds.Top;
control.Width = bounds.Width;
control.Height = bounds.Height;
control.SetState(DwellProgressState.Fixating, 0.0);
popup.IsOpen = true;
return(control);
}
protected override void ShowFeedback(DwellProgressState state, double progress)
{
if (state != DwellProgressState.Idle)
{
if (_feedbackPopup == null)
{
_feedbackPopup = GetFeedbackControl();
}
_feedbackPopup.SetState(state, progress);
}
else
{
if (_feedbackPopup != null)
{
GazeInput.GazeFeedbackPopupFactory.Return(_feedbackPopup);
_feedbackPopup = null;
}
}
}