private void UpdateVoltTimeIndicator()
{
if (_ScopeView.ScalingTime)
{
_VoltTimeIndicator.Text = TimeBaseConverter.ToString(Oscilloscope.TimeBase);
}
else
{
_VoltTimeIndicator.Text = VoltsPerDivisionConverter.ToString(Oscilloscope.Channels [_ScopeView.SelectedChannel].VoltsPerDivision, Oscilloscope.Channels [_ScopeView.SelectedChannel].AttenuationFactor);
}
}
/// <summary>
/// Registers the pinch recognizer.
/// </summary>
private void RegisterPinchRecognizer()
{
float startDistance;
startDistance = 0.0f;
pinchGesture = new UIPinchGestureRecognizer((pg) => {
if (pg.State == UIGestureRecognizerState.Began)
{
if (pg.NumberOfTouches == 2)
{
CGPoint firstPoint = pg.LocationOfTouch(0, this);
CGPoint secondPoint = pg.LocationOfTouch(1, this);
startDistance = CalculateDistance(firstPoint, secondPoint);
}
VoltTimeIndicator.Hidden = false;
}
else if (pg.State == UIGestureRecognizerState.Changed)
{
float distance;
if (pg.NumberOfTouches == 2)
{
CGPoint firstPoint = pg.LocationOfTouch(0, this);
CGPoint secondPoint = pg.LocationOfTouch(1, this);
distance = CalculateDistance(firstPoint, secondPoint);
if (PointsAreHorizontal(firstPoint, secondPoint))
{
if (distance > startDistance + 50)
{
startDistance = distance;
wfs210.TimeBase = wfs210.TimeBase.Cycle(-1);
}
else if (distance < startDistance - 50)
{
startDistance = distance;
wfs210.TimeBase = wfs210.TimeBase.Cycle(1);
}
VoltTimeIndicator.Text = TimeBaseConverter.ToString(wfs210.TimeBase);
}
else
{
if (distance > startDistance + 50)
{
startDistance = distance;
Service.Execute(new NextVoltsPerDivisionCommand(SelectedChannel));
}
else if (distance < startDistance - 50)
{
startDistance = distance;
Service.Execute(new PreviousVoltsPerDivisionCommand(SelectedChannel));
}
VoltTimeIndicator.Text = VoltsPerDivisionConverter.ToString(wfs210.Channels [SelectedChannel].VoltsPerDivision, wfs210.Channels [SelectedChannel].AttenuationFactor);
}
}
}
else if (pg.State == UIGestureRecognizerState.Ended)
{
VoltTimeIndicator.Hidden = true;
ApplyMarkerValuesToScope();
OnNewData(null);
Update();
}
});
this.AddGestureRecognizer(pinchGesture);
}
void UpdateTimeBaseText()
{
lblTimebase.Text = TimeBaseConverter.ToString(Oscilloscope.TimeBase);
}