413 lines
11 KiB
C
413 lines
11 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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#include <FL/Fl_Scrollbar.H>
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#include "Track_Header.H"
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void
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cb_hscroll ( Fl_Widget *w, void *v )
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{
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Scalebar *sb = (Scalebar*)w;
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if ( sb->zoom_changed() )
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{
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timeline->fpp = sb->zoom() * 1;
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int maxx = timeline->ts_to_x( timeline->length );
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sb->range( 0, maxx );
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timeline->redraw();
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}
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else
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{
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timeline->position( sb->value() );
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}
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printf( "%lu\n", timeline->xoffset );
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}
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void
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cb_vscroll ( Fl_Widget *w, void *v )
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{
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Fl_Scrollbar *sb = (Fl_Scrollbar*)w;
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timeline->tracks->position( timeline->tracks->x(), (timeline->rulers->y() + timeline->rulers->h()) - sb->value() );
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timeline->yposition = sb->value();
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// timeline->vscroll->range( 0, timeline->tracks->h() - timeline->h() - timeline->rulers->h() );
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sb->value( sb->value(), 30, 0, min( timeline->tracks->h(), timeline->tracks->h() - timeline->h() - timeline->rulers->h() ) );
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timeline->damage( FL_DAMAGE_SCROLL );
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}
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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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box( FL_FLAT_BOX );
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xoffset = 0;
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{
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Scalebar *o = new Scalebar( X, Y + H - 18, W - 18, 18 );
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o->range( 0, 48000 * 2 );
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o->zoom_range( 2, 8192 );
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o->zoom( 256 );
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o->type( FL_HORIZONTAL );
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o->callback( cb_hscroll, 0 );
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hscroll = o;
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}
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{
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Fl_Scrollbar *o = new Fl_Scrollbar( X + W - 18, Y, 18, H - 18 );
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o->type( FL_VERTICAL );
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o->step( 10 );
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o->callback( cb_vscroll, 0 );
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vscroll = o;
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}
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{
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Fl_Pack *o = new Fl_Pack( X + Track_Header::width(), Y, (W - Track_Header::width()) - vscroll->w(), H - hscroll->h(), "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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o->label( "Tempo" );
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o->align( FL_ALIGN_LEFT );
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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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o->label( "Time" );
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o->align( FL_ALIGN_LEFT );
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time_track = o;
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o->end();
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}
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o->size( o->w(), o->child( 0 )->h() * o->children() );
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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_ALWAYS ); */
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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( X, rulers->y() + rulers->h(), W - vscroll->w(), 5000 );
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o->type( Fl_Pack::VERTICAL );
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o->spacing( 5 );
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Track *l = NULL;
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for ( int i = 16; i--; )
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{
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Track_Header *t = new Track_Header( 0, 0, W, 75 );
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Track *o = new Audio_Track( 0, 0, 1, 100 );
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o->prev( l );
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if ( l )
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l->next( o );
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l = o;
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// o->end();
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t->track( o );
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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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/* make sure scrollbars are on top */
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add( vscroll );
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add( hscroll );
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vscroll->range( 0, tracks->h() );
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redraw();
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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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int
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Timeline::beats_per_bar ( nframes_t when ) const
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{
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time_sig t = time_track->time( when );
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return t.beats_per_bar;
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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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/** return the absolute pixel of the nearest measure line to /x/ */
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int
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Timeline::nearest_line ( int ix )
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{
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for ( int x = ix - 10; x < ix + 10; ++x )
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{
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const int measure = ts_to_x( (double)(sample_rate * 60) / beats_per_minute( x_to_ts( x - Track_Header::width() ) + xoffset ));
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// const int abs_x = ts_to_x( xoffset ) + x;
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if ( 0 == x % measure )
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return x;
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}
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return -1;
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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 beat = fl_color_average( FL_BLACK, color, 0.65f );
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Fl_Color bar = fl_color_average( FL_RED, 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 - Track_Header::width() ) + xoffset ));
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const int abs_x = ts_to_x( xoffset ) + x - Track_Header::width();
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if ( 0 == abs_x % measure )
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{
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int bpb = beats_per_bar( x_to_ts( x -Track_Header::width() ) + xoffset );
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if ( 0 == (abs_x / measure) % bpb )
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{
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if ( measure * bpb < 8 )
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break;
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fl_color( bar );
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}
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else
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{
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if ( measure < 8 )
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continue;
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fl_color( beat );
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}
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fl_line( x, Y, x, Y + H );
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}
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}
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fl_line_style( FL_SOLID, 0 );
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}
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void
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Timeline::position ( int X )
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{
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_old_xposition = xoffset;
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xoffset = x_to_ts( X );
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damage( FL_DAMAGE_SCROLL );
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}
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void
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Timeline::draw_clip ( void * v, int X, int Y, int W, int H )
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{
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Timeline *tl = (Timeline *)v;
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// printf( "draw_clip: %d,%d %dx%d\n", X, Y, W, H );
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fl_push_clip( X, Y, W, H );
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fl_color( rand() );
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fl_rectf( X, Y, X + W, Y + H );
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tl->draw_child( *tl->rulers );
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/* headers */
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fl_push_clip( tl->tracks->x(), tl->rulers->y() + tl->rulers->h(), Track_Header::width(), tl->h() - tl->rulers->h() - tl->hscroll->h() );
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tl->draw_child( *tl->tracks );
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fl_pop_clip();
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/* track bodies */
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fl_push_clip( tl->tracks->x() + Track_Header::width(), tl->rulers->y() + tl->rulers->h(), tl->tracks->w() - Track_Header::width(), tl->h() - tl->rulers->h() - tl->hscroll->h() );
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tl->draw_child( *tl->tracks );
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fl_pop_clip();
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// tl->draw_child( *tl->tracks );
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fl_pop_clip();
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}
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void
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Timeline::draw ( void )
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{
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int X, Y, W, H;
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X = tracks->x() + Fl::box_dx( tracks->child( 0 )->box() ) + 1;
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Y = tracks->y();
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W = tracks->w() - Fl::box_dw( tracks->child( 0 )->box() ) - 1;
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H = tracks->h();
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/* fl_color( FL_RED ); */
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/* fl_rect( X, Y, X + W, Y + H ); */
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if ( damage() & FL_DAMAGE_ALL )
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// ( damage() & ( FL_DAMAGE_CHILD | FL_DAMAGE_SCROLL ) ) )
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{
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draw_box( box(), x(), y(), w(), h(), color() );
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fl_push_clip( x(), rulers->y(), w(), rulers->h() );
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draw_child( *rulers );
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fl_pop_clip();
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fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), h() - hscroll->h() );
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draw_child( *tracks );
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fl_pop_clip();
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draw_child( *hscroll );
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draw_child( *vscroll );
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return;
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}
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if ( damage() & FL_DAMAGE_CHILD )
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{
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/* if ( damage() & FL_DAMAGE_SCROLL ) */
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/* fl_push_no_clip(); */
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fl_push_clip( rulers->x(), rulers->y(), rulers->w() - vscroll->w(), rulers->h() );
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update_child( *rulers );
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fl_pop_clip();
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/* headers */
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fl_push_clip( tracks->x(), rulers->y() + rulers->h(), Track_Header::width(), h() - rulers->h() - hscroll->h() );
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update_child( *tracks );
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fl_pop_clip();
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/* track bodies */
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fl_push_clip( tracks->x() + Track_Header::width(), rulers->y() + rulers->h(), tracks->w() - Track_Header::width(), h() - rulers->h() - hscroll->h() );
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update_child( *tracks );
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fl_pop_clip();
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update_child( *hscroll );
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update_child( *vscroll );
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/* if ( damage() & FL_DAMAGE_SCROLL ) */
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/* fl_pop_clip(); */
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}
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if ( damage() & FL_DAMAGE_SCROLL )
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{
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int dx = ts_to_x( _old_xposition ) - ts_to_x( xoffset );
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int dy = _old_yposition - yposition;
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if ( ! dy )
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fl_scroll( X + Track_Header::width(), rulers->y(), rulers->w() - Fl::box_dw( rulers->child(0)->box() ), rulers->h(), dx, 0, draw_clip, this );
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Y = rulers->y() + rulers->h();
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H = h() - rulers->h() - hscroll->h();
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if ( dy == 0 )
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fl_scroll( X + Track_Header::width(), Y, W - Track_Header::width(), H, dx, dy, draw_clip, this );
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else
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fl_scroll( X, Y, W, H, dx, dy, draw_clip, this );
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_old_xposition = xoffset;
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_old_yposition = yposition;
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}
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}
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int
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Timeline::handle ( int m )
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{
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switch ( m )
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{
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case FL_MOUSEWHEEL:
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{
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if ( hscroll->handle( m ) )
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return 1;
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return vscroll->handle( m );
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}
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default:
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return Fl_Group::handle( m );
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}
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}
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