131 lines
3.8 KiB
C
131 lines
3.8 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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#include "Timeline.H"
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#include "Tempo_Track.H"
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#include "Time_Track.H"
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#include "Audio_Track.H"
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Timeline::Timeline ( int X, int Y, int W, int H, const char* L ) : Fl_Group( X, Y, W, H, L )
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{
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{
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Fl_Pack *o = new Fl_Pack( 0, 0, 800, 600, "rulers" );
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o->type( Fl_Pack::VERTICAL );
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{
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Tempo_Track *o = new Tempo_Track( 0, 0, 800, 24 );
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o->color( FL_RED );
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o->add( new Tempo_Point( 0, 120 ) );
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o->add( new Tempo_Point( 56000, 250 ) );
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tempo_track = o;
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o->end();
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}
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{
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Time_Track *o = new Time_Track( 0, 24, 800, 24 );
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o->color( fl_color_average( FL_RED, FL_WHITE, 0.50f ) );
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o->add( new Time_Point( 0, 4, 4 ) );
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o->add( new Time_Point( 345344, 6, 8 ) );
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time_track = o;
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o->end();
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}
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rulers = o;
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o->end();
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}
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{
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Fl_Scroll *o = new Fl_Scroll( 0, 24 * 2, 800, 600 - (24 * 3) );
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o->type( Fl_Scroll::VERTICAL );
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sample_rate = 44100;
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fpp = 256;
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_beats_per_minute = 120;
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length = sample_rate * 60 * 2;
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{
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Fl_Pack *o = new Fl_Pack( 0, 0, 800, 5000 );
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o->type( Fl_Pack::VERTICAL );
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o->spacing( 10 );
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{
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Track *o = new Audio_Track( 0, 0, 800, 100 );
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o->end();
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}
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tracks = o;
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o->end();
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}
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scroll = o;
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o->end();
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}
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end();
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}
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float
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Timeline::beats_per_minute ( nframes_t when ) const
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{
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return tempo_track->beats_per_minute( when );
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}
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void
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Timeline::beats_per_minute ( nframes_t when, float bpm )
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{
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tempo_track->add( new Tempo_Point( when, bpm ) );
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}
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/* draw appropriate measure lines inside the given bounding box */
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void
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Timeline::draw_measure_lines ( int X, int Y, int W, int H, Fl_Color color )
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{
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fl_line_style( FL_DASH, 2 );
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fl_color( fl_color_average( FL_BLACK, color, 0.65f ) );
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// int measure = ts_to_x( sample_rate * 60 / beats_per_minute() );
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int measure;
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for ( int x = X; x < X + W; ++x )
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{
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measure = ts_to_x( (double)(sample_rate * 60) / beats_per_minute( x_to_ts( x ) + xoffset ));
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/* don't bother with lines this close together */
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if ( measure < 4 )
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break;
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if ( 0 == (ts_to_x( xoffset ) + x) % measure )
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fl_line( x, Y, x, Y + H );
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}
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fl_line_style( FL_SOLID, 0 );
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}
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