public void InvokeNearestPointChanged(NearestPointEventArgs e)
{
EventHandler <NearestPointEventArgs> handler = NearestPointChanged;
if (handler != null)
{
handler(this, e);
}
}
private void InvokePointClicked(NearestPointEventArgs e)
{
EventHandler <NearestPointEventArgs> handler = PointClicked;
if (handler != null)
{
handler(this, e);
}
}
private void canvas_MouseMove(object sender, MouseEventArgs e)
{
NearestPointEventArgs nearestPointEventArgs = GetNearestPoint(e);
pointMarker.Visibility = Visibility.Visible;
var point = myLine.Points[nearestPointEventArgs.PointIndex];
Canvas.SetTop(pointMarker, point.Y - pointMarker.Height / 2);
Canvas.SetLeft(pointMarker, point.X - pointMarker.Width / 2);
InvokeNearestPointChanged(nearestPointEventArgs);
}
private void canvas_MouseDown(object sender, MouseEventArgs e)
{
NearestPointEventArgs nearestPointEventArgs = GetNearestPoint(e);
InvokePointClicked(nearestPointEventArgs);
}
public void InvokeNearestPointChanged(NearestPointEventArgs e)
{
EventHandler<NearestPointEventArgs> handler = NearestPointChanged;
if (handler != null) handler(this, e);
}
private void InvokePointClicked(NearestPointEventArgs e)
{
EventHandler<NearestPointEventArgs> handler = PointClicked;
if (handler != null) handler(this, e);
}
