Method Children

src/TrackPanel.cpp:1240–1278

   ChannelStack(const std::shared_ptr<Track> &pTrack, wxCoord leftOffset)
      : mpTrack{ pTrack }, mLeftOffset{ leftOffset } {}
   Subdivision Children(const wxRect &rect_) override
   {
      auto rect = rect_;
      Refinement refinement;

      const auto channels = mpTrack->Channels();
      const auto pLast = *channels.rbegin();
      wxCoord yy = rect.GetTop();
      auto heights = FindAdjustedChannelHeights(*mpTrack);
      auto pHeight = heights.begin();
      for (auto pChannel : channels) {
         auto &view = ChannelView::Get(*pChannel);
         if (auto affordance = view.GetAffordanceControls()) {
            Refinement hgroup {
               std::make_pair(mLeftOffset, affordance)
            };
            refinement
               .emplace_back(yy, std::make_shared<HorizontalGroup>(hgroup));
            yy += kAffordancesAreaHeight;
         }

         auto height = *pHeight++;
         rect.SetTop(yy);
         rect.SetHeight(height - kChannelSeparatorThickness);
         refinement.emplace_back(yy,
            std::make_shared<VRulersAndChannels>(pChannel,
               ChannelView::Get(*pChannel).GetSubViews(rect),
               mLeftOffset));
         if (pChannel != pLast) {
            yy += height;
            refinement.emplace_back(
               yy - kChannelSeparatorThickness,
               TrackPanelResizerCell::Get(*pChannel)
                  .shared_from_this());
         }
      }

      return { Axis::Y, std::move(refinement) };
   }

   void Draw(TrackPanelDrawingContext& context,
      const wxRect& rect, unsigned iPass) override