private void ToolTipBeacon_Loaded(object sender, RoutedEventArgs e)
{
showTimer.Tick += ShowTimer_Tick;
hideTimer.Tick += HideTimer_Tick;
stayOpenTimer.Tick += StayOpenTimer_Tick;
if (TemplatedParent as FrameworkElement != null && Target == null)
{
Target = TemplatedParent as FrameworkElement;
}
overlayHost = OverlayHost.GetOverlay();
}
private Rect GetTargetRect()
{
OverlayHost host = OverlayHost.GetOverlay();
if (host == null || Target == null)
{
return(default(Rect));
}
Point leftTopCornerPoint = Target.TranslatePoint(new Point(0, 0), host);
Rect result = new Rect(leftTopCornerPoint, new Size(Target.ActualWidth, Target.ActualHeight));
return(result);
}
private void HideToolTip()
{
StopTimers();
if (tooltipPresenter == null)
{
return;
}
OverlayHost overlay = OverlayHost.GetOverlay();
if (overlay != null)
{
overlay.HideContent(GetToolTipContent(Target));
overlayHost.OwnerWindow.Deactivated += OwnerWindow_Deactivated;
}
tooltipPresenter.MouseLeftButtonDown -= OverlayControl_MouseLeftButtonDown;
tooltipPresenter = null;
}
private void ShowToolTip()
{
string groupName = GetInheritedGroupName(this);
if (!String.IsNullOrWhiteSpace(groupName) && !IsToolTipsGroupEnabled(groupName))
{
return;
}
overlayHost = OverlayHost.GetOverlay();
if (overlayHost != null)
{
overlayHost.OwnerWindow.Deactivated += OwnerWindow_Deactivated;
tooltipPresenter = overlayHost.ShowContent(GetToolTipContent(Target), GetTargetRect(), GetToolTipTemplateKey(Target));
tooltipPresenter.PlacementPriority = GetPlacementPriority(Target);
SetAttachedBeacon(tooltipPresenter, this);
SetBinding(ToolTipHasMouseOverProperty, new Binding {
Source = tooltipPresenter, Path = new PropertyPath(IsMouseOverProperty), Mode = BindingMode.OneWay
});
tooltipPresenter.MouseLeftButtonDown += OverlayControl_MouseLeftButtonDown;
hideTimer.Interval = TimeSpan.FromMilliseconds(GetGetHideDelay(Target));
hideTimer.Start();
}
}