Method RefreshTrack

src/TrackPanel.cpp:785–812

}

void TrackPanel::RefreshTrack(Track *trk, bool refreshbacking)
{
   if (!trk)
      return;

   auto height = ChannelView::GetChannelGroupHeight(trk);

   // Set rectangle top according to the scrolling position, `vpos`
   // Subtract the inset (above) and shadow (below) from the height of the
   // rectangle, but not the border
   // This matters because some separators do paint over the border
   auto &view = ChannelView::Get(*trk->GetChannel(0));
   const auto top =
      -mViewInfo->vpos + view.GetCumulativeHeightBefore() + kTopInset;
   height -= (kTopInset + kShadowThickness);

   // Width also subtracts insets (left and right) plus shadow (right)
   const auto left = kLeftInset;
   const auto width = GetRect().GetWidth()
      - (kLeftInset + kRightInset + kShadowThickness);

   wxRect rect(left, top, width, height);

   if( refreshbacking )
      mRefreshBacking = true;

   Refresh( false, &rect );
}


/// This method overrides Refresh() of wxWindow so that the