C++ Track::GetHeight方法代码示例

void TrackList::RecalcPositions(TrackNodePointer node)
{
   if ( isNull( node ) )
      return;

   Track *t;
   int i = 0;
   int y = 0;

   auto prev = getPrev( node );
   if ( !isNull( prev ) ) {
      t = prev.first->get();
      i = t->GetIndex() + 1;
      y = t->GetY() + t->GetHeight();
   }

   const auto theEnd = end();
   for (auto n = Find( node.first->get() ); n != theEnd; ++n) {
      t = *n;
      t->SetIndex(i++);
      t->DoSetY(y);
      y += t->GetHeight();
   }

   UpdatePendingTracks();
}

int TrackList::GetHeight() const
{
   int height = 0;

   ConstTrackListIterator iter(this);

   for (Track *t = iter.First(); t; t = iter.Next())
      height += t->GetHeight();

   return height;
}

TrackPanelResizeHandle::TrackPanelResizeHandle
( const std::shared_ptr<Track> &track, int y, const AudacityProject *pProject )
   : mpTrack{ track }
   , mMouseClickY( y )
{
   auto tracks = pProject->GetTracks();
   Track *prev = tracks->GetPrev(track.get());
   Track *next = tracks->GetNext(track.get());

   //STM:  Determine whether we should rescale one or two tracks
   if (prev && prev->GetLink() == track.get()) {
      // mpTrack is the lower track
      mInitialTrackHeight = track->GetHeight();
      mInitialActualHeight = track->GetActualHeight();
      mInitialMinimized = track->GetMinimized();
      mInitialUpperTrackHeight = prev->GetHeight();
      mInitialUpperActualHeight = prev->GetActualHeight();
      mMode = IsResizingBelowLinkedTracks;
   }
   else if (next && track->GetLink() == next) {
      // mpTrack is the upper track
      mInitialTrackHeight = next->GetHeight();
      mInitialActualHeight = next->GetActualHeight();
      mInitialMinimized = next->GetMinimized();
      mInitialUpperTrackHeight = track->GetHeight();
      mInitialUpperActualHeight = track->GetActualHeight();
      mMode = IsResizingBetweenLinkedTracks;
   }
   else {
      // DM: Save the initial mouse location and the initial height
      mInitialTrackHeight = track->GetHeight();
      mInitialActualHeight = track->GetActualHeight();
      mInitialMinimized = track->GetMinimized();
      mMode = IsResizing;
   }
}

void TrackList::RecalcPositions(TrackNodePointer node)
{
   if (isNull(node)) {
      return;
   }
   Track *t;
   int i = 0;
   int y = 0;

#ifdef EXPERIMENTAL_OUTPUT_DISPLAY
   int cnt = 0;
   if (node->prev) {
      t = node->prev->t;
      i = t->GetIndex() + 1;
      if(MONO_WAVE_PAN(t))
         y = t->GetY(true) + t->GetHeight(true);
      else
         y = t->GetY() + t->GetHeight();
   }

   for (const TrackListNode *n = node; n; n = n->next) {
      t = n->t;
      if(MONO_WAVE_PAN(t))
         cnt++;

      if(cnt != 2){
         t->SetIndex(i++);
         t->SetY(y);
         y += t->GetHeight();
      }
      if(cnt != 0){
         t->SetY(y,true);
         y += t->GetHeight(true);
      }
      cnt = 0;
   }
#else // EXPERIMENTAL_OUTPUT_DISPLAY
   if (hasPrev(node)) {
      auto prev = node;
      --prev;
      t = prev->get();
      i = t->GetIndex() + 1;
      y = t->GetY() + t->GetHeight();
   }

   const auto theEnd = end();
   for (auto n = node; n != theEnd; ++n) {
      t = n->get();
      t->SetIndex(i++);
      t->SetY(y);
      y += t->GetHeight();
   }
#endif // EXPERIMENTAL_OUTPUT_DISPLAY
}

void TrackList::RecalcPositions(const TrackListNode *node)
{
   Track *t;
   int i = 0;
   int y = 0;

   if (!node) {
      return;
   }

#ifdef EXPERIMENTAL_OUTPUT_DISPLAY
   int cnt = 0;
   if (node->prev) {
      t = node->prev->t;
      i = t->GetIndex() + 1;
      if(MONO_WAVE_PAN(t))
         y = t->GetY(true) + t->GetHeight(true);
      else
         y = t->GetY() + t->GetHeight();
   }

   for (const TrackListNode *n = node; n; n = n->next) {
      t = n->t;
      if(MONO_WAVE_PAN(t))
         cnt++;

      if(cnt != 2){
         t->SetIndex(i++);
         t->SetY(y);
         y += t->GetHeight();
      }
      if(cnt != 0){
         t->SetY(y,true);
         y += t->GetHeight(true);
      }
      cnt = 0;
   }
#else // EXPERIMENTAL_OUTPUT_DISPLAY
   if (node->prev) {
      t = node->prev->t;
      i = t->GetIndex() + 1;
      y = t->GetY() + t->GetHeight();
   }

   for (const TrackListNode *n = node; n; n = n->next) {
      t = n->t;
      t->SetIndex(i++);
      t->SetY(y);
      y += t->GetHeight();
   }
#endif // EXPERIMENTAL_OUTPUT_DISPLAY
}

bool AudacityPrintout::OnPrintPage(int page)
{
   wxDC *dc = GetDC();
   if (!dc)
      return false;

   int width, height;
   dc->GetSize(&width, &height);

   int rulerScreenHeight = 40;
   int screenTotalHeight = mTracks->GetHeight() + rulerScreenHeight;

   double scale = height / (double)screenTotalHeight;

   int rulerPageHeight = (int)(rulerScreenHeight * scale);
   Ruler ruler;
   ruler.SetBounds(0, 0, width, rulerPageHeight);
   ruler.SetOrientation(wxHORIZONTAL);
   ruler.SetRange(0.0, mTracks->GetEndTime());
   ruler.SetFormat(Ruler::TimeFormat);
   ruler.SetLabelEdges(true);
   ruler.Draw(*dc);

   TrackArtist artist;
   artist.SetBackgroundBrushes(*wxWHITE_BRUSH, *wxWHITE_BRUSH,
			       *wxWHITE_PEN, *wxWHITE_PEN);
   ViewInfo viewInfo;
   viewInfo.sel0 = viewInfo.sel1 = 0;
   viewInfo.vpos = 0;
   viewInfo.h = 0.0;
   viewInfo.screen = mTracks->GetEndTime() - viewInfo.h;
   viewInfo.total = viewInfo.screen;
   viewInfo.zoom = viewInfo.lastZoom = width / viewInfo.screen;
   int y = rulerPageHeight;

   TrackListIterator iter(mTracks);
   Track *n = iter.First();
   while (n) {
      wxRect r;
      r.x = 0;
      r.y = y;
      r.width = width;
      r.height = (int)(n->GetHeight() * scale);

      switch(n->GetKind()) {
      case Track::Wave:
         switch (((WaveTrack *)n)->GetDisplay()) {
         case WaveTrack::WaveformDisplay:
            artist.DrawWaveform((WaveTrack *)n, *dc, r,
                                &viewInfo, false, false, false, false, false);
            break;
         case WaveTrack::WaveformDBDisplay:
            artist.DrawWaveform((WaveTrack *)n, *dc, r,
                                &viewInfo, false, false, false, true, false);
            break;
         case WaveTrack::SpectrumDisplay:
            artist.DrawSpectrum((WaveTrack *)n, *dc, r, &viewInfo, false);
            break;
         case WaveTrack::PitchDisplay:
            artist.DrawSpectrum((WaveTrack *)n, *dc, r, &viewInfo, true);
            break;
         }
         break;
      case Track::Note:
         artist.DrawNoteTrack((NoteTrack *)n, *dc, r, &viewInfo);
         break;
      case Track::Label:
         artist.DrawLabelTrack((LabelTrack *)n, *dc, r, &viewInfo);
         break;
      case Track::Time:
         artist.DrawTimeTrack((TimeTrack *)n, *dc, r, &viewInfo);
         break;
      }

      dc->SetPen(*wxBLACK_PEN);
      dc->DrawLine(0, r.y, width, r.y);

      n = iter.Next();
      y += r.height;
   };

   return true;
}

bool AudacityPrintout::OnPrintPage(int WXUNUSED(page))
{
   wxDC *dc = GetDC();
   if (!dc)
      return false;

   int width, height;
   dc->GetSize(&width, &height);

   int rulerScreenHeight = 40;
   int screenTotalHeight = mTracks->GetHeight() + rulerScreenHeight;

   double scale = height / (double)screenTotalHeight;

   int rulerPageHeight = (int)(rulerScreenHeight * scale);
   Ruler ruler;
   ruler.SetBounds(0, 0, width, rulerPageHeight);
   ruler.SetOrientation(wxHORIZONTAL);
   ruler.SetRange(0.0, mTracks->GetEndTime());
   ruler.SetFormat(Ruler::TimeFormat);
   ruler.SetLabelEdges(true);
   ruler.Draw(*dc);

   TrackArtist artist;
   artist.SetBackgroundBrushes(*wxWHITE_BRUSH, *wxWHITE_BRUSH,
                               *wxWHITE_PEN, *wxWHITE_PEN);
   const double screenDuration = mTracks->GetEndTime();
   ZoomInfo zoomInfo(0.0, width / screenDuration);
   int y = rulerPageHeight;

   TrackListIterator iter(mTracks);
   Track *n = iter.First();
   while (n) {
      wxRect r;
      r.x = 0;
      r.y = y;
      r.width = width;
      r.height = (int)(n->GetHeight() * scale);

      artist.DrawTrack(n, *dc, r, SelectedRegion(), zoomInfo, false, false, false, false);

      dc->SetPen(*wxBLACK_PEN);
      AColor::Line(*dc, 0, r.y, width, r.y);

#ifdef EXPERIMENTAL_OUTPUT_DISPLAY
      if(MONO_WAVE_PAN(n)){
         y += r.height;
         r.x = 0;
         r.y = y;
         r.width = width;
         r.height = (int)(n->GetHeight(true) * scale);
         artist.DrawTrack(
            n, *dc, r, SelectedRegion{}, zoomInfo, false, false, false, false);
         dc->SetPen(*wxBLACK_PEN);
         AColor::Line(*dc, 0, r.y, width, r.y);
      }
#endif
      n = iter.Next();
      y += r.height;
   };

   return true;
}

UIHandle::Result TrackPanelResizeHandle::Drag
(const TrackPanelMouseEvent &evt, AudacityProject *pProject)
{
   auto pTrack = pProject->GetTracks()->Lock(mpTrack);
   if ( !pTrack )
      return RefreshCode::Cancelled;

   const wxMouseEvent &event = evt.event;
   TrackList *const tracks = pProject->GetTracks();

   int delta = (event.m_y - mMouseClickY);

   // On first drag, jump out of minimized mode.  Initial height
   // will be height of minimized track.
   //
   // This used to be in HandleResizeClick(), but simply clicking
   // on a resize border would switch the minimized state.
   if (pTrack->GetMinimized()) {
      Track *link = pTrack->GetLink();

      pTrack->SetHeight(pTrack->GetHeight());
      pTrack->SetMinimized(false);

      if (link) {
         link->SetHeight(link->GetHeight());
         link->SetMinimized(false);
         // Initial values must be reset since they weren't based on the
         // minimized heights.
         mInitialUpperTrackHeight = link->GetHeight();
         mInitialTrackHeight = pTrack->GetHeight();
      }
   }

   // Common pieces of code for MONO_WAVE_PAN and otherwise.
   auto doResizeBelow = [&] (Track *prev, bool WXUNUSED(vStereo)) {
      double proportion = static_cast < double >(mInitialTrackHeight)
      / (mInitialTrackHeight + mInitialUpperTrackHeight);

      int newTrackHeight = static_cast < int >
      (mInitialTrackHeight + delta * proportion);

      int newUpperTrackHeight = static_cast < int >
      (mInitialUpperTrackHeight + delta * (1.0 - proportion));

      //make sure neither track is smaller than its minimum height
      if (newTrackHeight < pTrack->GetMinimizedHeight())
         newTrackHeight = pTrack->GetMinimizedHeight();
      if (newUpperTrackHeight < prev->GetMinimizedHeight())
         newUpperTrackHeight = prev->GetMinimizedHeight();

      pTrack->SetHeight(newTrackHeight);
      prev->SetHeight(newUpperTrackHeight);
   };

   auto doResizeBetween = [&] (Track *next, bool WXUNUSED(vStereo)) {
      int newUpperTrackHeight = mInitialUpperTrackHeight + delta;
      int newTrackHeight = mInitialTrackHeight - delta;

      // make sure neither track is smaller than its minimum height
      if (newTrackHeight < next->GetMinimizedHeight()) {
         newTrackHeight = next->GetMinimizedHeight();
         newUpperTrackHeight =
         mInitialUpperTrackHeight + mInitialTrackHeight - next->GetMinimizedHeight();
      }
      if (newUpperTrackHeight < pTrack->GetMinimizedHeight()) {
         newUpperTrackHeight = pTrack->GetMinimizedHeight();
         newTrackHeight =
         mInitialUpperTrackHeight + mInitialTrackHeight - pTrack->GetMinimizedHeight();
      }

      pTrack->SetHeight(newUpperTrackHeight);
      next->SetHeight(newTrackHeight);
   };

   auto doResize = [&] {
      int newTrackHeight = mInitialTrackHeight + delta;
      if (newTrackHeight < pTrack->GetMinimizedHeight())
         newTrackHeight = pTrack->GetMinimizedHeight();
      pTrack->SetHeight(newTrackHeight);
   };

   //STM: We may be dragging one or two (stereo) tracks.
   // If two, resize proportionally if we are dragging the lower track, and
   // adjust compensatively if we are dragging the upper track.

   switch( mMode )
   {
      case IsResizingBelowLinkedTracks:
      {
         Track *prev = tracks->GetPrev(pTrack.get());
         doResizeBelow(prev, false);
         break;
      }
      case IsResizingBetweenLinkedTracks:
      {
         Track *next = tracks->GetNext(pTrack.get());
         doResizeBetween(next, false);
         break;
      }
      case IsResizing:
//.........这里部分代码省略.........