non/Timeline/Tempo_Point.C

188 lines
4.4 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. */
/*******************************************************************************/
#include "Tempo_Point.H"
#include "Tempo_Sequence.H"
#include "Timeline.H" // for timeline->tempo_track
void
Tempo_Point::get ( Log_Entry &e ) const
{
// Sequence_Point::get( e );
e.add( ":start", start() );
e.add( ":tempo", _tempo );
}
void
Tempo_Point::set ( Log_Entry &e )
{
Sequence_Point::set( e );
for ( int i = 0; i < e.size(); ++i )
{
const char *s, *v;
e.get( i, &s, &v );
if ( ! strcmp( s, ":tempo" ) )
_tempo = atof( v );
/* /\* FIXME: we need to add this to the time track on creation!!! *\/ */
/* timeline->tempo_track->add( this ); */
}
timeline->update_tempomap();
timeline->redraw();
_make_label();
}
Tempo_Point::Tempo_Point ( )
{
timeline->tempo_track->add( this );
timeline->update_tempomap();
}
Tempo_Point::Tempo_Point ( nframes_t when, float bpm )
{
_tempo = bpm;
_make_label();
timeline->tempo_track->add( this );
timeline->update_tempomap();
start( when );
log_create();
}
Tempo_Point::~Tempo_Point ( )
{
timeline->tempo_track->remove( this );
timeline->update_tempomap();
log_destroy();
}
int
Tempo_Point::handle ( int m )
{
if ( m == FL_PUSH && Fl::event_button3() && ! ( Fl::event_state() & ( FL_ALT | FL_CTRL | FL_SHIFT ) ) )
{
float t = _tempo;
edit( &t );
tempo( t );
return 0;
}
int r = Sequence_Widget::handle( m );
if ( m == FL_RELEASE )
{
sequence()->sort();
timeline->update_tempomap();
timeline->redraw();
}
return r;
}
#include <FL/Fl_Float_Input.H>
#include <FL/Fl_Menu_Window.H>
class Tempo_Point_Editor : public Fl_Menu_Window
{
/* not permitted */
Tempo_Point_Editor ( const Tempo_Point_Editor &rhs );
Tempo_Point_Editor & operator = ( const Tempo_Point_Editor &rhs );
float *_tempo;
Fl_Float_Input *_fi;
bool _sucess;
public:
Tempo_Point_Editor ( float *tempo ) : Fl_Menu_Window( 75, 58, "Edit Tempo" )
{
_sucess = false;
_tempo = tempo;
set_modal();
Fl_Float_Input *fi = _fi = new Fl_Float_Input( 12, 0 + 24, 50, 24, "Tempo:" );
fi->align( FL_ALIGN_TOP );
fi->when( FL_WHEN_NOT_CHANGED | FL_WHEN_ENTER_KEY );
fi->callback( &Tempo_Point_Editor::enter_cb, (void*)this );
char pat[10];
snprintf( pat, sizeof( pat ), "%.1f", *tempo );
fi->value( pat );
end();
show();
while ( shown() )
Fl::wait();
}
static void
enter_cb ( Fl_Widget *, void *v )
{
((Tempo_Point_Editor*)v)->enter_cb();
}
void
enter_cb ( void )
{
sscanf( _fi->value(), "%f", _tempo );
_sucess = true;
hide();
}
bool
sucess ( void )
{
return _sucess;
}
};
bool
Tempo_Point::edit ( float *tempo )
{
Tempo_Point_Editor ti( tempo );
return ti.sucess();
}