C++ (Cpp) WaveClip::GetCutLines Examples

Example #1

File: WaveTrack.cpp Project: Kirushanr/audacity

void WaveTrack::UpdateLocationsCache()
{
   WaveClipList::Node *it, *jt;
   
   mDisplayNumLocations = 0;

   for (it=GetClipIterator(); it; it=it->GetNext())
   {
      WaveClip* clip = it->GetData();
      
      mDisplayNumLocations += clip->GetCutLines()->GetCount();
      
      for (jt=GetClipIterator(); jt; jt=jt->GetNext())
      {
         WaveClip* clip2 = jt->GetData();
         if (clip != clip2 && fabs(clip->GetEndTime()-clip2->GetStartTime()) < WAVETRACK_MERGE_POINT_TOLERANCE)
            mDisplayNumLocations++;
      }
   }

   if (mDisplayNumLocations == 0)
      return;

   if (mDisplayNumLocations > mDisplayNumLocationsAllocated)
   {
      // Only realloc, if we need more space than before. Otherwise
      // just use block from before.
      if (mDisplayLocations)
         delete[] mDisplayLocations;
      mDisplayLocations = new Location[mDisplayNumLocations];
      mDisplayNumLocationsAllocated = mDisplayNumLocations;
   }

   int curpos = 0;

   for (it=GetClipIterator(); it; it=it->GetNext())
   {
      WaveClip* clip = it->GetData();
      WaveClipList* cutlines = clip->GetCutLines();
      for (jt = cutlines->GetFirst(); jt; jt=jt->GetNext())
      {
         mDisplayLocations[curpos].typ = locationCutLine;
         mDisplayLocations[curpos].pos = jt->GetData()->GetOffset() + it->GetData()->GetOffset();
         curpos++;
      }

      for (jt=GetClipIterator(); jt; jt=jt->GetNext())
      {
         WaveClip* clip2 = jt->GetData();
         if (clip != clip2 && fabs(clip->GetEndTime()-clip2->GetStartTime()) < WAVETRACK_MERGE_POINT_TOLERANCE)
         {
            mDisplayLocations[curpos].typ = locationMergePoint;
            mDisplayLocations[curpos].pos = clip->GetEndTime();
            mDisplayLocations[curpos].clipidx1 = mClips.IndexOf(clip);
            mDisplayLocations[curpos].clipidx2 = mClips.IndexOf(clip2);
            curpos++;
         }
      }
   }
}