150 lines
3.9 KiB
C++
150 lines
3.9 KiB
C++
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/*******************************************************************************/
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/* Copyright (C) 2008 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* more details. */
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/* */
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/* You should have received a copy of the GNU General Public License along */
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/* with This program; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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#pragma once
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#include "Track_Point.H"
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#define __CLASS__ "Tempo_Point"
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class Tempo_Point : public Track_Point
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{
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float _tempo;
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void
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_make_label ( void )
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{
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if ( ! _label )
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_label = new char[40];
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snprintf( _label, 40, "%.1f", _tempo );
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}
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protected:
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const char *class_name ( void ) { return "Tempo_Point"; }
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char ** get ( void )
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{
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char **sa = (char**)malloc( sizeof( char* ) * 4 );
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int i = 0;
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asprintf( &sa[i++], ":track 0x%X", _track ? _track->id() : 0 );
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asprintf( &sa[i++], ":x %lu", _offset );
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asprintf( &sa[i++], ":tempo %.2f", _tempo );
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sa[i] = NULL;
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return sa;
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}
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void
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set ( char **sa )
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{
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for ( int i = 0; sa[i]; ++i )
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{
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char *s = sa[i];
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strtok( s, " " );
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char *v = s + strlen( s ) + 1;
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if ( ! strcmp( s, ":x" ) )
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_offset = atol( v );
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else
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if ( ! strcmp( s, ":tempo" ) )
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_tempo = atof( v );
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else
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if ( ! strcmp( s, ":track" ) )
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{
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int i;
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sscanf( v, "%X", &i );
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Track *t = (Track*)Loggable::find( i );
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assert( t );
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t->add( this );
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}
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free( s );
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}
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free( sa );
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timeline->redraw();
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_make_label();
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}
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Tempo_Point ( )
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{
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}
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public:
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/* for loggable */
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static Loggable *
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create ( char **sa )
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{
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Tempo_Point *r = new Tempo_Point;
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r->set( sa );
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return (Loggable *)r;
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}
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Tempo_Point ( nframes_t when, float bpm )
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{
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_tempo = bpm;
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_offset = when;
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_make_label();
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log_create();
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}
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~Tempo_Point ( )
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{
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if ( _label ) delete[] _label;
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log_destroy();
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}
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float tempo ( void ) const { return _tempo; }
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void tempo ( float v ) { _tempo = v; }
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int
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handle ( int m )
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{
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int r = Track_Widget::handle( m );
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if ( m == FL_RELEASE )
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{
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_track->sort();
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timeline->redraw();
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}
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return r;
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}
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};
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#undef __CLASS__
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