non/mapping.C

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2007-12-18 05:09:02 +01:00
/*******************************************************************************/
/* Copyright (C) 2008 Jonathan Moore Liles */
/* */
/* This program 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 2 of the License, or (at your */
/* option) any later version. */
/* */
/* This program 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 This program; see the file COPYING. If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#include "mapping.H"
#include "stdlib.h"
#include "common.h"
/* Is C++'s dispatching useless or what? */
#define IS_INSTRUMENT ( _type == INSTRUMENT )
Mapping::Mapping ( )
{
_key = 0;
_type = NONE;
}
bool
Mapping::open ( enum map_type type, const char *name )
{
switch ( type )
{
case INSTRUMENT:
_instrument = Instrument::open( name );
break;
case SCALE:
_scale = Scale::open( name );
break;
default:
ASSERTION( "invalid mapping type ");
break;
}
if ( ! _scale )
return false;
_type = type;
return true;
}
Mapping::Mapping ( const Mapping &rhs )
{
_key = rhs._key;
_type = rhs._type;
_instrument = rhs._instrument;
}
const char *
Mapping::name ( void ) const
{
switch ( _type )
{
case INSTRUMENT:
return _instrument->name();
case SCALE:
return _scale->name();
}
return NULL;
}
int
Mapping::height ( void ) const
{
if ( IS_INSTRUMENT )
return _instrument->height();
else
return 0;
}
void
Mapping::key ( int n )
{
if ( n > 11 || n < 0 )
ASSERTION( "key selection out of range: %d", n );
_key = n;
}
int
Mapping::key ( void ) const
{
return _type == INSTRUMENT ? -1 : _key;
}
void
Mapping::translate ( midievent *e ) const
{
switch ( _type )
{
case INSTRUMENT:
return _instrument->translate( e );
case SCALE:
return _scale->translate( _key, e );
}
}
int
Mapping::velocity ( int n ) const
{
switch ( _type )
{
case INSTRUMENT:
return _instrument->velocity( n );
case SCALE:
return 0;
}
return 0;
}
const char *
Mapping::note_name ( int n ) const
{
switch ( _type )
{
case INSTRUMENT:
return _instrument->note_name( n );
case SCALE:
return _scale->note_name( _key, n );
}
return NULL;
}
/* For the instrument editor... */
Instrument *
Mapping::instrument ( void ) const
{
if ( IS_INSTRUMENT )
return _instrument;
else
return NULL;
}
/** return a string describing the type of this mapping */
const char *
Mapping::type ( void ) const
{
return IS_INSTRUMENT ? "Instrument" : "Scale";
}
bool
Mapping::editable ( void ) const
{
return IS_INSTRUMENT ? true : false;
}