public long CurrentPosition()
{
if ((m_itCurrent == m_Clips.Count) || !m_bActive)
{
return(m_tStartPosition);
}
double dTime = 0;
m_pController.GetSegmentTime(out dTime);
long tNow = (long)(dTime * 10000000);
ClipEntry ce = (ClipEntry)m_Clips[m_itCurrent];
// this is relative to the start position within this particular clip.
// Did we start at the beginning of this clip?
if (m_tStartPosition > ce.GetStartPosition())
{
// no, we started some distance into the clip
tNow += (m_tStartPosition - ce.GetStartPosition());
}
// offset from start of this clip to start of entire sequence
tNow += ce.GetStartPosition();
if ((tNow < 0) && m_bLoop)
{
// current time is near end of previous loop
ce = (ClipEntry)m_Clips[m_Clips.Count - 1];
tNow += ce.GetStartPosition() + ce.Duration();
}
return(tNow);
}
public int SetClipLimits(ClipEntry pClip, long tStart, long tEnd)
{
long tDur = pClip.Duration();
int hr = pClip.SetLimits(tStart, tEnd);
if (hr < 0 || (tDur == pClip.Duration()))
{
return(hr);
}
// this is called from the same message loop as the end-of-segment processing, so it's safe to
// access the current segment
if (pClip == CurrentClip())
{
// send just the stop time to the graph
// in the hope that it is not too late
hr = pClip.SetStopTime();
}
// clip duration has changed: update start position of
// all subsequent clips (for current position slider UI)
m_tDuration = 0;
bool bFound = false;
foreach (ClipEntry pThis in m_Clips)
{
if (pThis == pClip)
{
bFound = true;
m_tDuration = pClip.GetStartPosition() + pClip.Duration();
}
else if (bFound)
{
// following clip: adjust
pClip.SetStartPosition(m_tDuration);
m_tDuration += pClip.Duration();
}
}
return(S_OK);
}
public int SetClipLimits(ClipEntry pClip, long tStart, long tEnd)
{
long tDur = pClip.Duration();
int hr = pClip.SetLimits(tStart, tEnd);
if (hr < 0 || (tDur == pClip.Duration()))
{
return hr;
}
// this is called from the same message loop as the end-of-segment processing, so it's safe to
// access the current segment
if (pClip == CurrentClip())
{
// send just the stop time to the graph
// in the hope that it is not too late
hr = pClip.SetStopTime();
}
// clip duration has changed: update start position of
// all subsequent clips (for current position slider UI)
m_tDuration = 0;
bool bFound = false;
foreach (ClipEntry pThis in m_Clips)
{
if (pThis == pClip)
{
bFound = true;
m_tDuration = pClip.GetStartPosition() + pClip.Duration();
}
else if (bFound)
{
// following clip: adjust
pClip.SetStartPosition(m_tDuration);
m_tDuration += pClip.Duration();
}
}
return S_OK;
}