public InfosFading(long _iReferenceTimestamp, long _iAverageTimeStampsPerFrame)
{
// This constructor is used by all drawings to get the default values.
FromInfosFading(PreferencesManager.Instance().DefaultFading);
m_iReferenceTimestamp = _iReferenceTimestamp;
m_iAverageTimeStampsPerFrame = _iAverageTimeStampsPerFrame;
}
public double GetOpacityFactor(long _iTimestamp)
{
double fOpacityFactor = 0.0f;
if (!m_bEnabled)
{
// No fading.
if (_iTimestamp == m_iReferenceTimestamp)
{
fOpacityFactor = 1.0f;
}
else
{
fOpacityFactor = 0.0f;
}
}
else if (m_bUseDefault)
{
// Default value
InfosFading info = PreferencesManager.Instance().DefaultFading;
if (info.AlwaysVisible)
{
fOpacityFactor = 1.0f;
}
else
{
fOpacityFactor = ComputeOpacityFactor(m_iReferenceTimestamp, _iTimestamp, info.FadingFrames);
}
}
else if (m_bAlwaysVisible)
{
// infinite fading. (= persisting drawing)
fOpacityFactor = 1.0f;
}
else
{
// Custom value.
fOpacityFactor = ComputeOpacityFactor(m_iReferenceTimestamp, _iTimestamp, m_iFadingFrames);
}
return(fOpacityFactor * m_fMasterFactor);
}