lily/dimension-cache.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1998--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20
  21 #include "dimension-cache.hh"
  22
  23 #include "warn.hh"
  24 #include "grob.hh"
  25
  26 Dimension_cache::Dimension_cache (Dimension_cache const &d)
  27 {
  28   init ();
  29   offset_ = d.offset_ ? new Real (*d.offset_) : 0;
  30   parent_ = d.parent_;
  31   extent_ = d.extent_ ? new Interval (*d.extent_) : 0;
  32 }
  33
  34 Dimension_cache::Dimension_cache ()
  35 {
  36   init ();
  37 }
  38
  39 void
  40 Dimension_cache::init ()
  41 {
  42   offset_ = 0;
  43   extent_ = 0;
  44   parent_ = 0;
  45 }
  46
  47 Dimension_cache::~Dimension_cache ()
  48 {
  49   clear ();
  50 }
  51
  52 void
  53 Dimension_cache::clear ()
  54 {
  55   delete extent_;
  56   delete offset_;
  57   extent_ = 0;
  58   offset_ = 0;
  59 }