non/Timeline/Region.H

213 lines
6.0 KiB
C++

/*******************************************************************************/
/* 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. */
/*******************************************************************************/
#pragma once
#include "Audio_File.H"
#include "Track.H"
#include "Timeline.H"
/* Regions are "virtual" FLTK widgets; this is necessary because the
* dimensions of real FLTK widgets are limited to 16-bits, which is
* far too little for our purposes */
#include "Track_Widget.H"
#include "Loggable.H"
class Region;
/* Base for engine. Just to maintain state. Must be free of FLTK
* stuff */
class Region_Base : public Track_Widget
{
private:
Audio_File *_clip; /* clip this region represents */
float _scale; /* amplitude adjustment */
protected:
const char *class_name ( void ) { return "Region"; }
char ** get ( void )
{
// char *r;
char **sa = (char**)malloc( sizeof( char* ) * 8 );
int i = 0;
asprintf( &sa[ i++ ], ":source \"%s\"", _clip ? _clip->name() : "" );
asprintf( &sa[ i++ ], ":track 0x%X", _track ? _track->id() : 0 );
asprintf( &sa[ i++ ], ":x %lu", _r->offset );
asprintf( &sa[ i++ ], ":l %lu", _r->start );
asprintf( &sa[ i++ ], ":r %lu", _r->end );
asprintf( &sa[ i++ ], ":selected %d", selected() );
asprintf( &sa[ i++ ], ":gain %f", _scale );
sa[ i ] = NULL;
return sa;
}
void
set ( char **sa )
{
for ( int i = 0; sa[i]; ++i )
{
char *s = sa[i];
strtok( s, " " );
char *v = s + strlen( s ) + 1;
if ( *v == '"' )
{
v++;
v[ strlen( v ) - 2 ] = '\0';
}
if ( ! strcmp( s, ":x" ) )
_r->offset = atol( v );
else if ( ! strcmp( s, ":l" ) )
_r->start = atol( v );
else if ( ! strcmp( s, ":r" ) )
_r->end = atol( v );
else if ( ! strcmp( s, ":selected" ) )
{
if ( atoi( v ) )
select();
else
deselect();
}
else if ( ! strcmp( s, ":gain" ) )
_scale = atof( v );
else if ( ! strcmp( s, ":source" ) )
{
if ( ! ( _clip = Audio_File::from_file( v ) ) )
{
printf( "Grave error: could not open source \"%s\"\n", v );
}
}
else if ( ! strcmp( s, ":track" ) )
{
int i;
sscanf( v, "%X", &i );
Track *t = (Track*)Loggable::find( i );
assert( t );
t->add( this );
}
free( s );
}
free( sa );
#ifndef ENGINE
if ( _track )
_track->redraw();
#endif
}
public:
Region_Base ( )
{
_clip = NULL;
_scale = 1.0f;
}
#ifdef ENGINE
/* for loggable */
static Loggable *
create ( char **sa )
{
Region_Base *r = new Region_Base;
r->set( sa );
return (Loggable *)r;
}
#else
friend class Region;
#endif
};
#ifndef ENGINE
class Region : public Region_Base
{
static Fl_Boxtype _box;
static Fl_Color _selection_color;
static Fl_Color selection_color ( void ) { return _selection_color; }
static void selection_color ( Fl_Color v ) { _selection_color = v; }
enum trim_e { NO, LEFT, RIGHT };
void trim ( enum trim_e t, int X );
void init ( void );
Region ( )
{
init();
}
bool current ( void ) const { return this == belowmouse(); }
public:
static Loggable *
create ( char **sa )
{
Region *r = new Region;
r->set( sa );
return (Loggable *)r;
}
Track_Widget *clone ( const Track_Widget *r );
~Region ( )
{
log_destroy();
}
Fl_Boxtype box ( void ) const { return Region::_box; }
Fl_Align align ( void ) const { return (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_BOTTOM /*| FL_ALIGN_CLIP*/ | FL_ALIGN_INSIDE); }
Region ( const Region & rhs );
Region ( Audio_File *c );
Region ( Audio_File *c, Track *t, nframes_t o );
int handle ( int m );
void draw_box( int X, int Y, int W, int H );
void draw ( int X, int Y, int W, int H );
void resize ( void );
void normalize ( void );
nframes_t read ( sample_t *buf, nframes_t pos, nframes_t nframes, int channel ) const;
};
#endif