libpsynth 0.2.1
/home/raskolnikov/dev/psynth/trunk/src/psynth/synth/envelope.hpp
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00001 
00011 /*
00012  *  Copyright (C) 2008, 2011 Juan Pedro BolĂ­var Puente
00013  *
00014  *  This file is part of Psychosynth.
00015  *   
00016  *  Psychosynth is free software: you can redistribute it and/or modify
00017  *  it under the terms of the GNU General Public License as published by
00018  *  the Free Software Foundation, either version 3 of the License, or
00019  *  (at your option) any later version.
00020  *
00021  *  Psychosynth is distributed in the hope that it will be useful,
00022  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00023  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00024  *  GNU General Public License for more details.
00025  *
00026  *  You should have received a copy of the GNU General Public License
00027  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
00028  *
00029  */
00030 
00031 #ifndef PSYNTH_SYNTH_ENVELOPE_H
00032 #define PSYNTH_SYNTH_ENVELOPE_H
00033 
00034 namespace psynth
00035 {
00036 namespace synth
00037 {
00038 
00042 template <class Range>
00043 class envelope
00044 {
00045 public:
00046     typedef Range range;
00047     typedef typename Range::value_type value_type;
00048     
00053     virtual value_type update () = 0;
00054 
00060     virtual value_type update (std::size_t samples) = 0;
00061 
00067     virtual void update (const range& samples) = 0;
00068 
00072     virtual void press () = 0;
00073 
00077     virtual void release () = 0;
00078 
00083     virtual bool finished () = 0;
00084 };
00085 
00086 } /* namespace synth */
00087 } /* namespace psynth */
00088 
00089 #endif /* PSYNTH_ENVELOPE_H */