C++ TrackList::Add方法代码示例

void UndoManager::PushState(TrackList * l, double sel0, double sel1)
{
   int i;

   for (i = current + 1; i < stack.Count(); i++) {
      TrackListIterator iter(stack[i]->tracks);
      VTrack *t = iter.First();
      while (t) {
         delete t;
         t = iter.Next();
      }
   }

   i = stack.Count() - 1;
   while (i > current)
      stack.RemoveAt(i--);

   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter(l);
   VTrack *t = iter.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter.Next();
   }

   UndoStackElem *push = new UndoStackElem();
   push->tracks = tracksCopy;
   push->sel0 = sel0;
   push->sel1 = sel1;

   stack.Add(push);
   current++;
}

void UndoManager::ModifyState(TrackList * l, double sel0, double sel1)
{
   // Delete current

   TrackListIterator iter(stack[current]->tracks);
   Track *t = iter.First();
   while (t) {
      delete t;
      t = iter.Next();
   }

   // Duplicate

   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter2(l);
   t = iter2.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter2.Next();
   }

   // Replace

   stack[current]->tracks = tracksCopy;
   stack[current]->sel0 = sel0;
   stack[current]->sel1 = sel1;
}

void AudacityProject::OnDuplicate(wxCommandEvent & event)
{
   TrackListIterator iter(mTracks);

   VTrack *n = iter.First();
   VTrack *dest = 0;

   TrackList newTracks;

   while (n) {
      if (n->GetSelected()) {
         n->Copy(mViewInfo.sel0, mViewInfo.sel1, &dest);
         if (dest) {
            dest->Init(*n);
            dest->SetOffset(wxMax(mViewInfo.sel0, n->GetOffset()));
            newTracks.Add(dest);
         }
      }
      n = iter.Next();
   }

   TrackListIterator nIter(&newTracks);
   n = nIter.First();
   while (n) {
      mTracks->Add(n);
      n = nIter.Next();
   }

   PushState(_("Duplicated"));

   FixScrollbars();
   mTrackPanel->Refresh(false);
}

void AudioView::Pitch()
{
  VTrack *t;
  bool success = false;

  TrackList *tracks = GetTracks();
  t = tracks->First();
  while(t) {
    if (t->selected && t->GetKind() == VTrack::Wave) {
      NoteTrack *note = PitchExtract((WaveTrack *)t,
				     &((AudioDoc *)GetDocument())->dirManager);
      if (note) {
		success = true;
		tracks->Add(note);
      }
    }

    t = tracks->Next();
  }

  if (success) {
    PushState();
    
    FixScrollbars();
    REDRAW(trackPanel);
    REDRAW(rulerPanel);
  }
}

void UndoManager::ModifyState(TrackList * l,
                              const SelectedRegion &selectedRegion)
{
   if (current == wxNOT_FOUND) {
      return;
   }

   SonifyBeginModifyState();
   // Delete current
   stack[current]->tracks->Clear(true);
   delete stack[current]->tracks;

   // Duplicate
   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter(l);
   Track *t = iter.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter.Next();
   }

   // Replace
   stack[current]->tracks = tracksCopy;
   stack[current]->selectedRegion = selectedRegion;
   SonifyEndModifyState();
}

void UndoManager::PushState(TrackList * l, double sel0, double sel1,
                            wxString longDescription,
                            wxString shortDescription,
                            bool consolidate)
{
   unsigned int i;

   // If consolidate is set to true

   if (consolidate && lastAction == longDescription &&
       consolidationCount < 2) {
      consolidationCount++;
      ModifyState(l, sel0, sel1);
      return;
   }

   consolidationCount = 0;

   for (i = current + 1; i < stack.Count(); i++) {
      TrackListIterator iter(stack[i]->tracks);
      Track *t = iter.First();
      while (t) {
         delete t;
         t = iter.Next();
      }
   }

   i = stack.Count() - 1;
   while (i > (unsigned int)current)
      stack.RemoveAt(i--);

   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter(l);
   Track *t = iter.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter.Next();
   }

   UndoStackElem *push = new UndoStackElem();
   push->tracks = tracksCopy;
   push->sel0 = sel0;
   push->sel1 = sel1;
   push->description = longDescription;
   push->shortDescription = shortDescription;

   stack.Add(push);
   current++;

   if (saved >= current)
      saved = -1;

   lastAction = longDescription;
}

void UndoManager::PushState(TrackList * l, double sel0, double sel1,
                            wxString longDescription,
                            wxString shortDescription,
                            int flags)
{
   unsigned int i;

   // If consolidate is set to true, group up to 3 identical operations.
   if (((flags&PUSH_CONSOLIDATE)!=0) && lastAction == longDescription &&
       consolidationCount < 2) {
      consolidationCount++;
      ModifyState(l, sel0, sel1);
      // MB: If the "saved" state was modified by ModifyState, reset
      //  it so that UnsavedChanges returns true.
      if (current == saved) {
         saved = -1;
      }
      return;
   }

   consolidationCount = 0;

   i = current + 1;
   while (i < stack.Count()) {
      RemoveStateAt(i);
   }
             
   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter(l);
   Track *t = iter.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter.Next();
   }

   UndoStackElem *push = new UndoStackElem();
   push->tracks = tracksCopy;
   push->sel0 = sel0;
   push->sel1 = sel1;
   push->description = longDescription;
   push->shortDescription = shortDescription;
   push->spaceUsage = 0; // Calculate actual value after it's on the stack.

   stack.Add(push);
   current++;
   if( (flags&PUSH_CALC_SPACE)!=0)
      push->spaceUsage = this->CalculateSpaceUsage(current);

   if (saved >= current) {
      saved = -1;
   }

   lastAction = longDescription;
}

void UndoManager::PushState(TrackList * l,
                            const SelectedRegion &selectedRegion,
                            const wxString &longDescription,
                            const wxString &shortDescription,
                            int flags)
{
   unsigned int i;

   // If consolidate is set to true, group up to 3 identical operations.
   if (((flags&PUSH_CONSOLIDATE)!=0) && lastAction == longDescription &&
       consolidationCount < 2) {
      consolidationCount++;
      ModifyState(l, selectedRegion);
      // MB: If the "saved" state was modified by ModifyState, reset
      //  it so that UnsavedChanges returns true.
      if (current == saved) {
         saved = -1;
      }
      return;
   }

   consolidationCount = 0;

   i = current + 1;
   while (i < stack.Count()) {
      RemoveStateAt(i);
   }

   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter(l);
   Track *t = iter.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter.Next();
   }

   UndoStackElem *push = new UndoStackElem();
   push->tracks = tracksCopy;
   push->selectedRegion = selectedRegion;
   push->description = longDescription;
   push->shortDescription = shortDescription;

   stack.Add(push);
   current++;

   if (saved >= current) {
      saved = -1;
   }

   lastAction = longDescription;
}

void AudioView::PopState(TrackList *l)
{
  TrackList *tracks = GetTracks();

  tracks->Clear();
  VTrack *t = l->First();
  while(t) {
	//    printf("Popping track with %d samples\n",
	//           ((WaveTrack *)t)->numSamples);
    //	((WaveTrack *)t)->Debug();
    tracks->Add(t->Duplicate());
    t = l->Next();
  }
}

void AudacityProject::OnSplit(wxCommandEvent & event)
{
   TrackListIterator iter(mTracks);

   VTrack *n = iter.First();
   VTrack *dest = 0;

   TrackList newTracks;

   while (n) {
      if (n->GetSelected()) {
         double sel0 = mViewInfo.sel0;
         double sel1 = mViewInfo.sel1;

         n->Copy(sel0, sel1, &dest);
         if (dest) {
            dest->Init(*n);
            dest->SetOffset(wxMax(sel0, n->GetOffset()));

            if (sel1 >= n->GetMaxLen())
               n->Clear(sel0, sel1);
            else if (sel0 <= n->GetOffset()) {
               n->Clear(sel0, sel1);
               n->SetOffset(sel1);
            } else
               n->Silence(sel0, sel1);

            newTracks.Add(dest);
         }
      }
      n = iter.Next();
   }

   TrackListIterator nIter(&newTracks);
   n = nIter.First();
   while (n) {
      mTracks->Add(n);
      n = nIter.Next();
   }

   PushState(_("Split"));

   FixScrollbars();
   mTrackPanel->Refresh(false);
}

void AudioView::QuickMix()
{
  WaveTrack **waveArray;
  VTrack *t;
  int numWaves = 0;
  int w;

  TrackList *tracks = GetTracks();
  t = tracks->First();
  while(t) {
    if (t->selected && t->GetKind() == VTrack::Wave)
      numWaves++;
    t = tracks->Next();
  }
  
  if (numWaves == 0)
	return;

  waveArray = new WaveTrack*[numWaves];
  w = 0;
  t = tracks->First();
  while(t) {
    if (t->selected && t->GetKind() == VTrack::Wave)
      waveArray[w++] = (WaveTrack *)t;
    t = tracks->Next();
  }  

  WaveTrack *mix = ::QuickMix(numWaves, waveArray,
			    &((AudioDoc *)GetDocument())->dirManager);
  if (mix) {
    tracks->Add(mix);

    PushState();
    
    FixScrollbars();
    REDRAW(trackPanel);
    REDRAW(rulerPanel);
  }
}

void UndoManager::ModifyState(TrackList * l, double sel0, double sel1)
{
   SonifyBeginModifyState();
   // Delete current
   stack[current]->tracks->Clear(true);
   delete stack[current]->tracks;

   // Duplicate
   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter(l);
   Track *t = iter.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter.Next();
   }

   // Replace
   stack[current]->tracks = tracksCopy;
   stack[current]->sel0 = sel0;
   stack[current]->sel1 = sel1;
   SonifyEndModifyState();
}

void UndoManager::PushState(TrackList * l, double sel0, double sel1,
                            wxString desc)
{
   unsigned int i;

   for (i = current + 1; i < stack.Count(); i++) {
      TrackListIterator iter(stack[i]->tracks);
      Track *t = iter.First();
      while (t) {
         delete t;
         t = iter.Next();
      }
   }

   i = stack.Count() - 1;
   while (i > (unsigned int)current)
      stack.RemoveAt(i--);

   TrackList *tracksCopy = new TrackList();
   TrackListIterator iter(l);
   Track *t = iter.First();
   while (t) {
      tracksCopy->Add(t->Duplicate());
      t = iter.Next();
   }

   UndoStackElem *push = new UndoStackElem();
   push->tracks = tracksCopy;
   push->sel0 = sel0;
   push->sel1 = sel1;
   push->description = desc;

   stack.Add(push);
   current++;

   if (saved >= current)
      saved = -1;
}

//.........这里部分代码省略.........
               if (wt->GetEndTime() > allt0) {
                  allt0 = wt->GetEndTime();
               }
            
               if (tt->GetSelected()) {
                  sel = true;
                  if (duplex)
                     playbackTracks.Remove(wt);
                  if (wt->GetEndTime() > t0) {
                     t0 = wt->GetEndTime();
                  }
               }
            }
         }

         // Use end time of all wave tracks if none selected
         if (!sel) {
            t0 = allt0;
         }

         // Pad selected/all wave tracks to make them all the same length
         for (Track *tt = it.First(); tt; tt = it.Next()) {
            if (tt->GetKind() == Track::Wave && (tt->GetSelected() || !sel)) {
               wt = (WaveTrack *)tt;
               t1 = wt->GetEndTime();
               if (t1 < t0) {
                  WaveTrack *newTrack = p->GetTrackFactory()->NewWaveTrack();
                  newTrack->InsertSilence(0.0, t0 - t1);
                  newTrack->Flush();
                  wt->Clear(t1, t0);
                  wt->Paste(t1, newTrack);
                  delete newTrack;
               }
               newRecordingTracks.Add(wt);
            }
         }

         t1 = 1000000000.0;     // record for a long, long time (tens of years)
      }
      else {
         recordingChannels = gPrefs->Read(wxT("/AudioIO/RecordChannels"), 2);
         for (int c = 0; c < recordingChannels; c++) {
            WaveTrack *newTrack = p->GetTrackFactory()->NewWaveTrack();

            int initialheight = newTrack->GetHeight();

            newTrack->SetOffset(t0);

            if (recordingChannels <= 2) {
               newTrack->SetHeight(initialheight/recordingChannels);
            }
            else {
               newTrack->SetMinimized(true);
            }

            if (recordingChannels == 2) {
               if (c == 0) {
                  newTrack->SetChannel(Track::LeftChannel);
                  newTrack->SetLinked(true);
               }
               else {
                  newTrack->SetChannel(Track::RightChannel);
                  newTrack->SetTeamed(true);
               }
            }
            else {

//.........这里部分代码省略.........
            wxString nameSuffix = wxString(wxT(""));

            if (useTrackNumber) {
               nameSuffix += wxString::Format(wxT("%d"), numTracks + c);
            }

            if (useDateStamp) {
               if (!nameSuffix.IsEmpty()) {
                  nameSuffix += wxT("_");
               }
               nameSuffix += wxDateTime::Now().FormatISODate();
            }

            if (useTimeStamp) {
               if (!nameSuffix.IsEmpty()) {
                  nameSuffix += wxT("_");
               }
               nameSuffix += wxDateTime::Now().FormatISOTime();
            }

            // ISO standard would be nice, but ":" is unsafe for file name.
            nameSuffix.Replace(wxT(":"), wxT("-"));

            if (baseTrackName.IsEmpty()) {
               newTrack->SetName(nameSuffix);
            }
            else if (nameSuffix.IsEmpty()) {
               newTrack->SetName(baseTrackName);
            }
            else {
               newTrack->SetName(baseTrackName + wxT("_") + nameSuffix);
            }

            if (recordingChannels > 2)
              newTrack->SetMinimized(true);

            if (recordingChannels == 2) {
               if (c == 0) {
                  newTrack->SetChannel(Track::LeftChannel);
                  newTrack->SetLinked(true);
               }
               else {
                  newTrack->SetChannel(Track::RightChannel);
               }
            }
            else {
               newTrack->SetChannel( Track::MonoChannel );
            }

            // Let the list hold the track, and keep a pointer to it
            newRecordingTracks.push_back(
               static_cast<WaveTrack*>(
                  trackList->Add(
                     std::move(newTrack))));
         }
      }

      //Automated Input Level Adjustment Initialization
      #ifdef EXPERIMENTAL_AUTOMATED_INPUT_LEVEL_ADJUSTMENT
         gAudioIO->AILAInitialize();
      #endif

      AudioIOStartStreamOptions options(p->GetDefaultPlayOptions());
      int token = gAudioIO->StartStream(playbackTracks,
                                        newRecordingTracks,
#ifdef EXPERIMENTAL_MIDI_OUT
                                        midiTracks,
#endif
                                        t0, t1, options);

      bool success = (token != 0);

      if (success) {
         p->SetAudioIOToken(token);
         mBusyProject = p;
      }
      else {
         if (shifted) {
            // Restore the tracks to remove any inserted silence
            if (tracksCopied)
               *trackList = std::move(tracksCopy);
         }
         else {
            // msmeyer: Delete recently added tracks if opening stream fails
            for (unsigned int i = 0; i < newRecordingTracks.size(); i++) {
               trackList->Remove(newRecordingTracks[i]);
            }
         }

         // msmeyer: Show error message if stream could not be opened
         wxMessageBox(_("Error while opening sound device. Please check the recording device settings and the project sample rate."),
                      _("Error"), wxOK | wxICON_EXCLAMATION, this);

         SetPlay(false);
         SetStop(false);
         SetRecord(false);
      }
   }
   UpdateStatusBar(GetActiveProject());
}