text: /*
    This file is part of LilyPond, the GNU music typesetter.
  
    Copyright (C) 2004--2020 Han-Wen Nienhuys <hanwen@xs4all.nl>
  
    LilyPond is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
  
    LilyPond is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
  
    You should have received a copy of the GNU General Public License
    along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  */
  
  #ifndef LINE_INTERFACE_HH
  #define LINE_INTERFACE_HH
  
  #include "lily-proto.hh"
  #include "grob-interface.hh"
  
  struct Line_interface
  {
    static Stencil line (Grob *me, Offset from, Offset to);
    static Stencil make_zigzag_line (Grob *me,
                                     Offset from,
                                     Offset to);
    static Stencil make_trill_line (Grob *me,
                                    Offset from,
                                    Offset to);
    static Stencil make_dashed_line (Real th, Offset from, Offset to, Real, Real);
    static Stencil make_line (Real th, Offset from, Offset to);
    static Stencil make_arrow (Offset beg, Offset end, Real thick,
                               Real length, Real width);
    static Stencil arrows (Grob *me, Offset from, Offset to,
                           bool from_arrow,
                           bool to_arrow);
  };
  
  #endif /* LINE_INTERFACE_HH */
  
  