public static void OnPointerPressed(UIElement sender, TouchSlider slider, PointerRoutedEventArgs e)
{
sender.CapturePointer(e.Pointer);
_lastPoint = e.GetCurrentPoint(slider);
_isDragActive = true;
e.Handled = true;
}
public static void OnPointerReleased(UIElement sender, TouchSlider slider, PointerRoutedEventArgs e)
{
sender.ReleasePointerCapture(e.Pointer);
_isDragActive = false;
if (_lastPoint != null &&
(_lastPoint.Position.X < 0 || _lastPoint.Position.Y < 0 || _lastPoint.Position.X > slider._trackBackground.ActualWidth || _lastPoint.Position.Y > slider._trackBackground.ActualHeight))
slider.RaiseOnPointerExited(e);
e.Handled = true;
}
public static void OnPointerMoved(TouchSlider slider, PointerRoutedEventArgs e, bool fine = false)
{
if (_isDragActive)
{
PointerPoint currentPoint = e.GetCurrentPoint(slider);
double delta = slider.Orientation == Windows.UI.Xaml.Controls.Orientation.Horizontal ?
currentPoint.Position.X - _lastPoint.Position.X:
_lastPoint.Position.Y - currentPoint.Position.Y;
if (fine)
slider.Value = slider.Normalize(slider.Value + delta / 10 * slider.SmallChange);
else
slider.Value = slider.Normalize(slider.Value + delta * slider.Maximum / slider._trackBackground.ActualHeight);
_lastPoint = currentPoint;
e.Handled = true;
}
}