108 lines
3.3 KiB
C++
108 lines
3.3 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 "Sequence.H"
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#include "Tempo_Point.H"
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#include <list>
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class Tempo_Sequence : public Sequence
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{
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protected:
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/* not used */
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void get ( Log_Entry &e ) const { }
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void set ( Log_Entry &e ) { }
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public:
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Fl_Cursor cursor ( void ) const { return FL_CURSOR_DEFAULT; }
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Tempo_Sequence ( int X, int Y, int W, int H ) : Sequence ( X, Y, W, H )
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{
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// box( FL_DOWN_BOX );
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}
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/** return a pointer to the closest tempo point *before* /when/ */
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Tempo_Point *
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at ( nframes_t when )
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{
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for ( std::list <Sequence_Widget *>::const_reverse_iterator i = _widgets.rbegin();
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i != _widgets.rend(); i++ )
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if ( (*i)->offset() < when )
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return ((Tempo_Point*)(*i));
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return NULL;
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}
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float
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beats_per_minute ( nframes_t when )
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{
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// sort();
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Tempo_Point *p = at( when );
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if ( p )
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return p->tempo();
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else
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return 120.0;
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}
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void
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beats_per_minute ( nframes_t when, float bpm )
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{
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add( new Tempo_Point( when, bpm ) );
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sort();
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}
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int
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handle ( int m )
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{
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int r = Sequence::handle( m );
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if ( r )
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return r;
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switch ( m )
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{
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case FL_PUSH:
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if ( Fl::event_button1() )
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{
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static float t = 120.0f;
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if ( Tempo_Point::edit( &t ) )
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{
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add( new Tempo_Point( timeline->x_to_offset( Fl::event_x() ), t ) );
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timeline->redraw();
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}
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return 0;
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}
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default:
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return 0;
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}
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}
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};
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