702 lines
16 KiB
C
702 lines
16 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 "Control_Track.H"
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#include <FL/Fl_Scrollbar.H>
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// #include <FL/Fl_Image.H>
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// #include <FL/Fl_RGB_Image.H> // needed for alpha blending
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#include "Track_Header.H"
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const float UPDATE_FREQ = 0.02f;
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#include "Disk_Stream.H"
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#include "Transport.H"
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void
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Timeline::cb_scroll ( Fl_Widget *w, void *v )
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{
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((Timeline*)v)->cb_scroll( w );
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}
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void
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Timeline::cb_scroll ( Fl_Widget *w )
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{
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if ( w == vscroll )
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{
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tracks->position( tracks->x(), (rulers->y() + rulers->h()) - vscroll->value() );
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yposition( vscroll->value() );
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int rh = h() - rulers->h();
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vscroll->value( vscroll->value(), 30, 0, max( tracks->h() - rh, rh) );
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}
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else
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{
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if ( hscroll->zoom_changed() )
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{
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_fpp = hscroll->zoom() * 1;
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int maxx = ts_to_x( _length );
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hscroll->range( 0, maxx );
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redraw();
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}
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else
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{
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xposition( hscroll->value() );
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}
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}
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}
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Timeline::Timeline ( int X, int Y, int W, int H, const char* L ) : Fl_Overlay_Window( 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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_enable_measure_lines = true;
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X = Y = 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 * 300 );
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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_scroll, this );
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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_scroll, this );
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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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_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( 0 );
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for ( int i = 2; i--; )
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{
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// Track_Header *t = new Track_Header( 0, 0, W, 75 );
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Track_Header *t = new Track_Header( 0, 0, W, 30 );
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Track *o = new Audio_Track( 0, 0, 1, 100 );
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t->track( o );
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t->add( new Audio_Track( 0, 0, 1, 100 ) );
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t->add( new Audio_Track( 0, 0, 1, 100 ) );
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t->add_control( new Control_Track( 0, 0, 1, 100 ) );
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t->color( (Fl_Color)rand() );
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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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Fl::add_timeout( UPDATE_FREQ, update_cb, this );
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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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/* FIXME: this function *really* needs to be optimized. Currently it
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searched both the time and tempo lists once for every horiontal
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pixel and performs a number of calculations--this is slow. */
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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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if ( ! _enable_measure_lines )
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return;
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// fl_line_style( FL_DASH, 2 );
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fl_line_style( FL_DASH, 0 );
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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;
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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::xposition ( 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::yposition ( int Y )
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{
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// _old_yposition = _yposition;
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_yposition = Y;
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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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static unsigned char *rect_image;
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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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/* if ( damage() & FL_DAMAGE_USER1 ) */
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/* { */
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/* /\* save the rectangle so we can draw it (darkened) in the overlay *\/ */
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/* Rectangle &r = _selection; */
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/* make_current(); */
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/* rect_image = fl_read_image( NULL, r.x, r.y, r.w, r.h, 0 ); */
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/* return; */
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/* } */
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if ( (damage() & FL_DAMAGE_ALL)
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||
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damage() & FL_DAMAGE_EXPOSE )
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{
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draw_box( box(), 0, 0, w(), h(), color() );
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fl_push_clip( 0, 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(), hscroll->y() - (rulers->y() + rulers->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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redraw_overlay();
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/* Rectangle &r = _selection; */
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/* unsigned char *data = fl_read_image( NULL, r.x, r.y, r.w, r.h, 0 ); */
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/* Fl_RGB_Image bi( data, r.w, r.h, 3 ); */
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/* bi.color_average( FL_BLACK, 0.50f ); */
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/* bi.draw( r.x, r.y ); */
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/* delete[] data; */
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/* if ( r.w && r.h ) */
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/* { */
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/* const unsigned char data[] = { 0, 127, 0, 96, */
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/* 0, 96, 0, 127 }; */
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/* Fl_RGB_Image bi( data, 2, 2, 2 ); */
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/* Fl_Image *bi2 = bi.copy( r.w, r.h ); */
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/* bi2->draw( r.x, r.y ); */
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/* delete bi2; */
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/* } */
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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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// draw_box( box(), 0, 0, w(), h(), color() );
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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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fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), hscroll->y() - (rulers->y() + rulers->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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}
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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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void
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Timeline::draw_playhead ( void )
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{
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int x = ( ts_to_x( transport.frame ) - ts_to_x( xoffset ) ) + tracks->x() + Track_Header::width();
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if ( x < tracks->x() + Track_Header::width() || x > tracks->x() + tracks->w() )
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return;
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fl_color( FL_RED );
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int y = rulers->y() + rulers->h();
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int h = this->h() - hscroll->h();
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fl_rectf( x - 2, y, 5, 2 );
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fl_line( x, y, x, h );
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}
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void
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Timeline::redraw_playhead ( void )
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{
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static nframes_t last_playhead = -1;
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if ( last_playhead != transport.frame )
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{
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redraw_overlay();
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last_playhead = transport.frame;
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}
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}
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/** called so many times a second to redraw the playhead etc. */
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void
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Timeline::update_cb ( void *arg )
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{
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Fl::repeat_timeout( UPDATE_FREQ, update_cb, arg );
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Timeline *tl = (Timeline *)arg;
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tl->redraw_playhead();
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}
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void
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Timeline::draw_overlay ( void )
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{
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draw_playhead();
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if ( ! ( _selection.w && _selection.h ) )
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return;
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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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const Rectangle &r = _selection;
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fl_color( FL_BLACK );
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fl_line_style( FL_SOLID, 2 );
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fl_rect( r.x + 2, r.y + 2, r.w, r.h );
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fl_color( FL_MAGENTA );
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fl_line_style( FL_DASH, 2 );
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fl_rect( r.x, r.y, r.w, r.h );
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fl_line( r.x, r.y, r.x + r.w, r.y + r.h );
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fl_line( r.x + r.w, r.y, r.x, r.y + r.h );
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/* fl_overlay_rect( r.x, r.y, r.w, r.h ); */
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fl_line_style( FL_SOLID, 0 );
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/* const unsigned char data[] = { 127, 127, 127, 96, */
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/* 127, 96, 127, 40 }; */
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/* Fl_RGB_Image bi( data, 2, 2, 2 ); */
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/* Fl_Image *bi2 = bi.copy( r.w, r.h ); */
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/* bi2->draw( r.x, r.y ); */
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/* delete bi2; */
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/* unsigned char *data = fl_read_image( NULL, r.x, r.y, r.w, r.h, 0 ); */
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/* Fl_RGB_Image bi( rect_image, r.w, r.h, 3 ); */
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/* bi.color_average( FL_BLACK, 0.50f ); */
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/* bi.draw( r.x, r.y ); */
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/* delete[] rect_image; */
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/* rect_image = NULL; */
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fl_pop_clip();
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}
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// #include "Track_Widget.H"
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|
/** select all widgets in inside rectangle /r/ */
|
|
void
|
|
Timeline::select( const Rectangle &r )
|
|
{
|
|
const int Y = r.y;
|
|
|
|
for ( int i = tracks->children(); i-- ; )
|
|
{
|
|
Track_Header *t = (Track_Header*)tracks->child( i );
|
|
|
|
if ( ! ( t->y() > Y + r.h || t->y() + t->h() < Y ) )
|
|
t->track()->select_range( r.x, r.w );
|
|
}
|
|
}
|
|
|
|
int
|
|
Timeline::handle ( int m )
|
|
{
|
|
static Drag *drag = NULL;
|
|
|
|
switch ( m )
|
|
{
|
|
case FL_KEYBOARD:
|
|
{
|
|
switch ( Fl::event_key() )
|
|
{
|
|
case FL_Delete:
|
|
{
|
|
Track_Widget::delete_selected();
|
|
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
default:
|
|
{
|
|
int r = Fl_Overlay_Window::handle( m );
|
|
|
|
if ( m != FL_RELEASE && r )
|
|
return r;
|
|
|
|
const int X = Fl::event_x();
|
|
const int Y = Fl::event_y();
|
|
|
|
switch ( m )
|
|
{
|
|
case FL_PUSH:
|
|
{
|
|
if ( ! Fl::event_button1() )
|
|
return 0;
|
|
|
|
assert( ! drag );
|
|
|
|
drag = new Drag( X - x(), Y - y() );
|
|
_selection.x = drag->x;
|
|
_selection.y = drag->y;
|
|
break;
|
|
}
|
|
case FL_DRAG:
|
|
{
|
|
int ox = X - drag->x;
|
|
int oy = Y - drag->y;
|
|
|
|
if ( ox < 0 )
|
|
_selection.x = X;
|
|
if ( oy < 0 )
|
|
_selection.y = Y;
|
|
|
|
_selection.w = abs( ox );
|
|
_selection.h = abs( oy );
|
|
break;
|
|
}
|
|
case FL_RELEASE:
|
|
{
|
|
delete drag;
|
|
drag = NULL;
|
|
|
|
select( _selection );
|
|
|
|
_selection.w = _selection.h = 0;
|
|
break;
|
|
}
|
|
default:
|
|
return 0;
|
|
break;
|
|
}
|
|
|
|
redraw_overlay();
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**********/
|
|
/* Engine */
|
|
/**********/
|
|
|
|
/** call process() on each track header */
|
|
nframes_t
|
|
Timeline::process ( nframes_t nframes )
|
|
{
|
|
for ( int i = tracks->children(); i-- ; )
|
|
{
|
|
Track_Header *t = (Track_Header*)tracks->child( i );
|
|
|
|
t->process( nframes );
|
|
}
|
|
|
|
/* FIXME: BOGUS */
|
|
return nframes;
|
|
}
|
|
|
|
/* THREAD: RT */
|
|
void
|
|
Timeline::seek ( nframes_t frame )
|
|
{
|
|
for ( int i = tracks->children(); i-- ; )
|
|
{
|
|
Track_Header *t = (Track_Header*)tracks->child( i );
|
|
|
|
t->seek( frame );
|
|
}
|
|
}
|
|
|
|
/* THREAD: RT */
|
|
int
|
|
Timeline::seek_pending ( void )
|
|
{
|
|
int r = 0;
|
|
|
|
for ( int i = tracks->children(); i-- ; )
|
|
{
|
|
Track_Header *t = (Track_Header*)tracks->child( i );
|
|
|
|
if ( t->diskstream )
|
|
r += t->diskstream->output_buffer_percent() < 50;
|
|
}
|
|
}
|