bool WaveTrack::Join(double t0, double t1)
{
// Merge all WaveClips overlapping selection into one
WaveClipList::Node* it;
WaveClipList clipsToDelete;
WaveClip *newClip;
for (it=GetClipIterator(); it; it=it->GetNext())
{
WaveClip *clip = it->GetData();
if (clip->GetStartTime() < t1-(1.0/mRate) &&
clip->GetEndTime()-(1.0/mRate) > t0) {
// Put in sorted order
int i;
for(i=0; i<clipsToDelete.GetCount(); i++)
if (clipsToDelete[i]->GetStartTime() > clip->GetStartTime())
break;
//printf("Insert clip %.6f at position %d\n", clip->GetStartTime(), i);
clipsToDelete.Insert(i, clip);
}
}
newClip = CreateClip();
double t = clipsToDelete[0]->GetOffset();
newClip->SetOffset(t);
for(it=clipsToDelete.GetFirst(); it; it=it->GetNext())
{
WaveClip *clip = it->GetData();
//printf("t=%.6f adding clip (offset %.6f, %.6f ... %.6f)\n",
// t, clip->GetOffset(), clip->GetStartTime(), clip->GetEndTime());
if (clip->GetOffset() - t > (1.0 / mRate)) {
double addedSilence = (clip->GetOffset() - t);
//printf("Adding %.6f seconds of silence\n");
newClip->InsertSilence(t, addedSilence);
t += addedSilence;
}
//printf("Pasting at %.6f\n", t);
newClip->Paste(t, clip);
t = newClip->GetEndTime();
mClips.DeleteObject(clip);
delete clip;
}
return true;
}
WaveClip::WaveClip(WaveClip& orig, DirManager *projDirManager)
{
// essentially a copy constructor - but you must pass in the
// current project's DirManager, because we might be copying
// from one project to another
mOffset = orig.mOffset;
mRate = orig.mRate;
mSequence = new Sequence(*orig.mSequence, projDirManager);
mEnvelope = new Envelope();
mEnvelope->Paste(0.0, orig.mEnvelope);
mEnvelope->SetOffset(orig.GetOffset());
mEnvelope->SetTrackLen(((double)orig.mSequence->GetNumSamples()) / orig.mRate);
mWaveCache = new WaveCache(1);
#ifdef EXPERIMENTAL_USE_REALFFTF
mWindowType = -1;
mWindowSize = -1;
hFFT = NULL;
mWindow = NULL;
#endif
mSpecCache = new SpecCache(1, 1, false);
mSpecPxCache = new SpecPxCache(1);
for (WaveClipList::compatibility_iterator it=orig.mCutLines.GetFirst(); it; it=it->GetNext())
mCutLines.Append(new WaveClip(*it->GetData(), projDirManager));
mAppendBuffer = NULL;
mAppendBufferLen = 0;
mDirty = 0;
mIsPlaceholder = orig.GetIsPlaceholder();
}
bool WaveClip::ExpandCutLine(double cutLinePosition)
{
for (WaveClipList::compatibility_iterator it = mCutLines.GetFirst(); it; it=it->GetNext())
{
WaveClip* cutline = it->GetData();
if (fabs(mOffset + cutline->GetOffset() - cutLinePosition) < 0.0001)
{
if (!Paste(mOffset+cutline->GetOffset(), cutline))
return false;
delete cutline;
mCutLines.DeleteNode(it);
return true;
}
}
return false;
}
bool WaveClip::Clear(double t0, double t1)
{
sampleCount s0, s1;
TimeToSamplesClip(t0, &s0);
TimeToSamplesClip(t1, &s1);
if (GetSequence()->Delete(s0, s1-s0))
{
// msmeyer
//
// Delete all cutlines that are within the given area, if any.
//
// Note that when cutlines are active, two functions are used:
// Clear() and ClearAndAddCutLine(). ClearAndAddCutLine() is called
// whenever the user directly calls a command that removes some audio, e.g.
// "Cut" or "Clear" from the menu. This command takes care about recursive
// preserving of cutlines within clips. Clear() is called when internal
// operations want to remove audio. In the latter case, it is the right
// thing to just remove all cutlines within the area.
//
double clip_t0 = t0;
double clip_t1 = t1;
if (clip_t0 < GetStartTime())
clip_t0 = GetStartTime();
if (clip_t1 > GetEndTime())
clip_t1 = GetEndTime();
WaveClipList::compatibility_iterator nextIt;
for (WaveClipList::compatibility_iterator it = mCutLines.GetFirst(); it; it=nextIt)
{
nextIt = it->GetNext();
WaveClip* clip = it->GetData();
double cutlinePosition = mOffset + clip->GetOffset();
if (cutlinePosition >= t0 && cutlinePosition <= t1)
{
// This cutline is within the area, delete it
delete clip;
mCutLines.DeleteNode(it);
} else
if (cutlinePosition >= t1)
{
clip->Offset(clip_t0-clip_t1);
}
}
// Collapse envelope
GetEnvelope()->CollapseRegion(t0, t1);
if (t0 < GetStartTime())
Offset(-(GetStartTime() - t0));
MarkChanged();
return true;
}
return false;
}
void WaveClip::OffsetCutLines(double t0, double len)
{
for (WaveClipList::compatibility_iterator it = mCutLines.GetFirst(); it; it=it->GetNext())
{
WaveClip* cutLine = it->GetData();
if (mOffset + cutLine->GetOffset() >= t0)
cutLine->Offset(len);
}
}
void WaveTrack::SetOffset(double o)
{
double delta = o - GetOffset();
for (WaveClipList::Node* it=GetClipIterator(); it; it=it->GetNext())
{
WaveClip* clip = it->GetData();
clip->SetOffset(clip->GetOffset() + delta);
}
mOffset = o;
}
bool WaveClip::FindCutLine(double cutLinePosition,
double* cutlineStart /* = NULL */,
double* cutlineEnd /* = NULL */)
{
for (WaveClipList::compatibility_iterator it = mCutLines.GetFirst(); it; it=it->GetNext())
{
WaveClip* cutline = it->GetData();
if (fabs(mOffset + cutline->GetOffset() - cutLinePosition) < 0.0001)
{
if (cutlineStart)
*cutlineStart = mOffset+cutline->GetStartTime();
if (cutlineEnd)
*cutlineEnd = mOffset+cutline->GetEndTime();
return true;
}
}
return false;
}
bool WaveClip::ClearAndAddCutLine(double t0, double t1)
{
if (t0 > GetEndTime() || t1 < GetStartTime())
return true; // time out of bounds
WaveClip *newClip = new WaveClip(mSequence->GetDirManager(),
mSequence->GetSampleFormat(),
mRate);
double clip_t0 = t0;
double clip_t1 = t1;
if (clip_t0 < GetStartTime())
clip_t0 = GetStartTime();
if (clip_t1 > GetEndTime())
clip_t1 = GetEndTime();
if (!newClip->CreateFromCopy(clip_t0, clip_t1, this))
return false;
newClip->SetOffset(clip_t0-mOffset);
// Sort out cutlines that belong to the new cutline
WaveClipList::compatibility_iterator nextIt;
for (WaveClipList::compatibility_iterator it = mCutLines.GetFirst(); it; it=nextIt)
{
nextIt = it->GetNext();
WaveClip* clip = it->GetData();
double cutlinePosition = mOffset + clip->GetOffset();
if (cutlinePosition >= t0 && cutlinePosition <= t1)
{
clip->SetOffset(cutlinePosition - newClip->GetOffset() - mOffset);
newClip->mCutLines.Append(clip);
mCutLines.DeleteNode(it);
} else
if (cutlinePosition >= t1)
{
clip->Offset(clip_t0-clip_t1);
}
}
// Clear actual audio data
sampleCount s0, s1;
TimeToSamplesClip(t0, &s0);
TimeToSamplesClip(t1, &s1);
if (GetSequence()->Delete(s0, s1-s0))
{
// Collapse envelope
GetEnvelope()->CollapseRegion(t0, t1);
if (t0 < GetStartTime())
Offset(-(GetStartTime() - t0));
MarkChanged();
mCutLines.Append(newClip);
return true;
} else
{
delete newClip;
return false;
}
}
bool WaveTrack::Copy(double t0, double t1, Track **dest)
{
*dest = NULL;
if (t1 <= t0)
return false;
WaveTrack *newTrack = new WaveTrack(mDirManager);
newTrack->Init(*this);
WaveClipList::Node* it;
for (it=GetClipIterator(); it; it=it->GetNext())
{
WaveClip *clip = it->GetData();
if (t0 <= clip->GetStartTime() && t1 >= clip->GetEndTime())
{
// Whole clip is in copy region
//printf("copy: clip %i is in copy region\n", (int)clip);
WaveClip *newClip = new WaveClip(*clip, mDirManager);
newClip->RemoveAllCutLines();
newClip->Offset(-t0);
newTrack->mClips.Append(newClip);
} else
if (t1 > clip->GetStartTime() && t0 < clip->GetEndTime())
{
// Clip is affected by command
//printf("copy: clip %i is affected by command\n", (int)clip);
WaveClip *newClip = new WaveClip(*clip, mDirManager);
newClip->RemoveAllCutLines();
double clip_t0 = t0;
double clip_t1 = t1;
if (clip_t0 < clip->GetStartTime())
clip_t0 = clip->GetStartTime();
if (clip_t1 > clip->GetEndTime())
clip_t1 = clip->GetEndTime();
//printf("copy: clip_t0=%f, clip_t1=%f\n", clip_t0, clip_t1);
newClip->Offset(-t0);
if (newClip->GetOffset() < 0)
newClip->SetOffset(0);
//printf("copy: clip offset is now %f\n", newClip->GetOffset());
if (!newClip->CreateFromCopy(clip_t0, clip_t1, clip))
{
//printf("paste: CreateFromCopy(%f, %f, %i) returns false, quitting\n",
// clip_t0, clip_t1, (int)clip);
return false;
}
newTrack->mClips.Append(newClip);
}
}
*dest = newTrack;
return true;
}
