Add omitted file.

This commit is contained in:
Jonathan Moore Liles 2008-03-25 16:18:24 -05:00
parent d2478e3161
commit 87babc7da8
1 changed files with 183 additions and 0 deletions

183
Engine/objects.H Normal file
View File

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/*******************************************************************************/
/* 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. */
/*******************************************************************************/
/* these are all the objects whose state must be recorded, this
includes tracks, regions, etc. Relevant interfaces must be fully compatible
with those in the Timeline program. */
#include "Audio_File.H"
#include "Loggable.H"
typedef unsigned long nframes_t;
class Track_Widget
{
protected:
nframes_t _offset;
nframes_t _start;
nframes_t _end;
bool _selected;
};
/* macros to simplify serialization code */
#define START( n ) char **sa = (char **)malloc( sizeof( char * ) * (1 + (n) ) ); int i = 0
#define PUT( fmt, arg ) asprintf( &sa[ i++ ], (fmt), (arg) )
#define END() sa[ i ] = NULL; return sa;
#define SWITCH do
#define CASE( arg ) if ( ! strcmp( s, ( arg ) ) )
#define GET( arg, act ) CASE( arg ) { act ; break; }
class Track : public Loggable
{
};
class Region : public Loggable, public Track_Widget
{
Track *_track;
Audio_File *_clip; /* clip this region represents */
float _scale; /* amplitude adjustment */
protected:
const char *class_name ( void ) { return "Region"; }
char ** get ( void )
{
START( 7 );
PUT( ":source \"%s\"", _clip ? _clip->name() : "" );
PUT( ":track 0x%X", _track ? _track->id() : 0 );
PUT( ":x %lu", _offset );
PUT( ":l %lu", _start );
PUT( ":r %lu", _end );
PUT( ":selected %d", _selected );
PUT( ":gain %f", _scale );
END();
}
void
set ( char **sa )
{
for ( int i = 0; sa[i]; ++i )
{
char *s = sa[i];
char *v = s + strlen( s ) + 1;
SWITCH
{
GET( ":x", _offset = atol( v ) );
GET( ":l" , _start = atol( v ) );
GET( ":r", _end = atol( v ) );
CASE( ":selected" )
{
if ( atoi( v ) )
select();
else
deselect();
break;
}
GET( ":gain", _scale = atof( v ) );
CASE( ":source" )
{
if ( ! ( _clip = Audio_File::from_file( v ) ) )
printf( "Grave error: could not open source \"%s\"\n", v );
break;
}
CASE( ":track" )
{
int i;
sscanf( v, "%X", &i );
Track *t = (Track*)Loggable::find( i );
assert( t );
t->add( this );
break;
}
}
free( s );
}
free( sa );
}
};
class Time_Point : public Track_Widget
{
protected:
char ** get ( void )
{
START( 4 );
PUT( ":track 0x%X", _track ? _track->id() : 0 );
PUT( ":x %lu", _offset );
PUT( ":beats_per_bar %d", _time.beats_per_bar );
PUT( ":beat_type %d", _time.beat_type );
END();
}
void
set ( char **sa )
{
for ( int i = 0; sa[i]; ++i )
{
char *s = sa[i];
char *v = s + strlen( s ) + 1;
SWITCH
{
GET( ":x", _offset = atol( v ) );
GET( ":beats_per_bar", _time.beats_per_bar = atoi( v ) );
GET( ":beat_type", _time.beat_type = atoi( v ) );
CASE( ":track" )
{
int i;
sscanf( v, "%X", &i );
Track *t = (Track*)Loggable::find( i );
assert( t );
t->add( this );
break;
}
free( s );
}
free( sa );
}
}
};