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non/Timeline.C

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/*******************************************************************************/
/* 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 "Timeline.H"
#include "Tempo_Track.H"
#include "Time_Track.H"
#include "Audio_Track.H"
#include <FL/Fl_Scrollbar.H>
#include "Track_Header.H"
void
cb_hscroll ( Fl_Widget *w, void *v )
{
Scalebar *sb = (Scalebar*)w;
if ( sb->zoom_changed() )
{
timeline->fpp = sb->zoom() * 1;
int maxx = timeline->ts_to_x( timeline->length );
sb->range( 0, maxx );
timeline->redraw();
}
else
{
timeline->position( sb->value() );
}
printf( "%lu\n", timeline->xoffset );
}
void
cb_vscroll ( Fl_Widget *w, void *v )
{
Fl_Scrollbar *sb = (Fl_Scrollbar*)w;
timeline->tracks->position( timeline->tracks->x(), (timeline->rulers->y() + timeline->rulers->h()) - sb->value() );
timeline->yposition = sb->value();
// timeline->vscroll->range( 0, timeline->tracks->h() - timeline->h() - timeline->rulers->h() );
sb->value( sb->value(), 30, 0, min( timeline->tracks->h(), timeline->tracks->h() - timeline->h() - timeline->rulers->h() ) );
timeline->damage( FL_DAMAGE_SCROLL );
}
Timeline::Timeline ( int X, int Y, int W, int H, const char* L ) : Fl_Overlay_Window( X, Y, W, H, L )
{
box( FL_FLAT_BOX );
xoffset = 0;
_enable_measure_lines = true;
X = Y = 0;
{
Scalebar *o = new Scalebar( X, Y + H - 18, W - 18, 18 );
o->range( 0, 48000 * 2 );
o->zoom_range( 2, 8192 );
o->zoom( 256 );
o->type( FL_HORIZONTAL );
o->callback( cb_hscroll, 0 );
hscroll = o;
}
{
Fl_Scrollbar *o = new Fl_Scrollbar( X + W - 18, Y, 18, H - 18 );
o->type( FL_VERTICAL );
// o->step( 10 );
o->callback( cb_vscroll, 0 );
vscroll = o;
}
{
Fl_Pack *o = new Fl_Pack( X + Track_Header::width(), Y, (W - Track_Header::width()) - vscroll->w(), H - hscroll->h(), "rulers" );
o->type( Fl_Pack::VERTICAL );
{
Tempo_Track *o = new Tempo_Track( 0, 0, 800, 24 );
o->color( FL_RED );
o->add( new Tempo_Point( 0, 120 ) );
o->add( new Tempo_Point( 56000, 250 ) );
o->label( "Tempo" );
o->align( FL_ALIGN_LEFT );
tempo_track = o;
o->end();
}
{
Time_Track *o = new Time_Track( 0, 24, 800, 24 );
o->color( fl_color_average( FL_RED, FL_WHITE, 0.50f ) );
o->add( new Time_Point( 0, 4, 4 ) );
o->add( new Time_Point( 345344, 6, 8 ) );
o->label( "Time" );
o->align( FL_ALIGN_LEFT );
time_track = o;
o->end();
}
o->size( o->w(), o->child( 0 )->h() * o->children() );
rulers = o;
o->end();
}
{
/* Fl_Scroll *o = new Fl_Scroll( 0, 24 * 2, 800, 600 - (24 * 3) ); */
/* o->type( Fl_Scroll::VERTICAL_ALWAYS ); */
sample_rate = 44100;
fpp = 256;
_beats_per_minute = 120;
length = sample_rate * 60 * 2;
{
Fl_Pack *o = new Fl_Pack( X, rulers->y() + rulers->h(), W - vscroll->w(), 5000 );
o->type( Fl_Pack::VERTICAL );
o->spacing( 0 );
Track *l = NULL;
for ( int i = 16; i--; )
{
// Track_Header *t = new Track_Header( 0, 0, W, 75 );
Track_Header *t = new Track_Header( 0, 0, W, 30 );
Track *o = new Audio_Track( 0, 0, 1, 100 );
o->prev( l );
if ( l )
l->next( o );
l = o;
// o->end();
t->track( o );
t->color( (Fl_Color)rand() );
}
tracks = o;
o->end();
}
/* scroll = o; */
/* o->end(); */
}
/* make sure scrollbars are on top */
add( vscroll );
add( hscroll );
vscroll->range( 0, tracks->h() );
redraw();
end();
}
float
Timeline::beats_per_minute ( nframes_t when ) const
{
return tempo_track->beats_per_minute( when );
}
int
Timeline::beats_per_bar ( nframes_t when ) const
{
time_sig t = time_track->time( when );
return t.beats_per_bar;
}
void
Timeline::beats_per_minute ( nframes_t when, float bpm )
{
tempo_track->add( new Tempo_Point( when, bpm ) );
}
/** return the absolute pixel of the nearest measure line to /x/ */
int
Timeline::nearest_line ( int ix )
{
for ( int x = ix - 10; x < ix + 10; ++x )
{
const int measure = ts_to_x( (double)(sample_rate * 60) / beats_per_minute( x_to_ts( x - Track_Header::width() ) + xoffset ));
// const int abs_x = ts_to_x( xoffset ) + x;
if ( 0 == x % measure )
return x;
}
return -1;
}
/** draw appropriate measure lines inside the given bounding box */
/* FIXME: this function *really* needs to be optimized. Currently it
searched both the time and tempo lists once for every horiontal
pixel and performs a number of calculations--this is slow. */
void
Timeline::draw_measure_lines ( int X, int Y, int W, int H, Fl_Color color )
{
if ( ! _enable_measure_lines )
return;
// fl_line_style( FL_DASH, 2 );
fl_line_style( FL_DASH, 0 );
Fl_Color beat = fl_color_average( FL_BLACK, color, 0.65f );
Fl_Color bar = fl_color_average( FL_RED, color, 0.65f );
int measure;
for ( int x = X; x < X + W; ++x )
{
measure = ts_to_x( (double)(sample_rate * 60) / beats_per_minute( x_to_ts( x - Track_Header::width() ) + xoffset ));
const int abs_x = ts_to_x( xoffset ) + x - Track_Header::width();
if ( 0 == abs_x % measure )
{
int bpb = beats_per_bar( x_to_ts( x -Track_Header::width() ) + xoffset );
if ( 0 == (abs_x / measure) % bpb )
{
if ( measure * bpb < 8 )
break;
fl_color( bar );
}
else
{
if ( measure < 8 )
continue;
fl_color( beat );
}
fl_line( x, Y, x, Y + H );
}
}
fl_line_style( FL_SOLID, 0 );
}
void
Timeline::position ( int X )
{
_old_xposition = xoffset;
xoffset = x_to_ts( X );
damage( FL_DAMAGE_SCROLL );
}
void
Timeline::draw_clip ( void * v, int X, int Y, int W, int H )
{
Timeline *tl = (Timeline *)v;
// printf( "draw_clip: %d,%d %dx%d\n", X, Y, W, H );
fl_push_clip( X, Y, W, H );
fl_color( rand() );
fl_rectf( X, Y, X + W, Y + H );
tl->draw_child( *tl->rulers );
/* headers */
fl_push_clip( tl->tracks->x(), tl->rulers->y() + tl->rulers->h(), Track_Header::width(), tl->h() - tl->rulers->h() - tl->hscroll->h() );
tl->draw_child( *tl->tracks );
fl_pop_clip();
/* track bodies */
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() );
tl->draw_child( *tl->tracks );
fl_pop_clip();
// tl->draw_child( *tl->tracks );
fl_pop_clip();
}
void
Timeline::draw ( void )
{
int X, Y, W, H;
X = tracks->x() + Fl::box_dx( tracks->child( 0 )->box() ) + 1;
Y = tracks->y();
W = tracks->w() - Fl::box_dw( tracks->child( 0 )->box() ) - 1;
H = tracks->h();
if ( (damage() & FL_DAMAGE_ALL)
||
damage() & FL_DAMAGE_EXPOSE )
{
draw_box( box(), 0, 0, w(), h(), color() );
fl_push_clip( 0, rulers->y(), w(), rulers->h() );
draw_child( *rulers );
fl_pop_clip();
fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), hscroll->y() - (rulers->y() + rulers->h()) );
draw_child( *tracks );
fl_pop_clip();
draw_child( *hscroll );
draw_child( *vscroll );
// redraw_overlay();
return;
}
if ( damage() & FL_DAMAGE_CHILD )
{
// draw_box( box(), 0, 0, w(), h(), color() );
fl_push_clip( rulers->x(), rulers->y(), rulers->w() - vscroll->w(), rulers->h() );
update_child( *rulers );
fl_pop_clip();
fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), hscroll->y() - (rulers->y() + rulers->h()) );
update_child( *tracks );
fl_pop_clip();
update_child( *hscroll );
update_child( *vscroll );
}
if ( damage() & FL_DAMAGE_SCROLL )
{
int dx = ts_to_x( _old_xposition ) - ts_to_x( xoffset );
int dy = _old_yposition - yposition;
if ( ! dy )
fl_scroll( X + Track_Header::width(), rulers->y(), rulers->w() - Fl::box_dw( rulers->child(0)->box() ), rulers->h(), dx, 0, draw_clip, this );
Y = rulers->y() + rulers->h();
H = h() - rulers->h() - hscroll->h();
if ( dy == 0 )
fl_scroll( X + Track_Header::width(), Y, W - Track_Header::width(), H, dx, dy, draw_clip, this );
else
fl_scroll( X, Y, W, H, dx, dy, draw_clip, this );
_old_xposition = xoffset;
_old_yposition = yposition;
}
}
void
Timeline::draw_overlay ( void )
{
// TODO: draw selection rectangle here!
/* fl_color( FL_BLUE ); */
/* fl_line_style( FL_DOT, 4 ); */
/* fl_rect( 300, 400, 200, 300 ); */
/* fl_line_style( FL_SOLID, 0 ); */
}
int
Timeline::handle ( int m )
{
switch ( m )
{
case FL_KEYBOARD:
{
switch ( Fl::event_key() )
{
case FL_Delete:
{
/* for ( int i = tracks->children(); i--; ) */
/* { */
/* Track_Header *t = (Track_Header*)tracks->child( i ); */
/* t->track()->remove_selected(); */
/* } */
Track_Widget::delete_selected();
return 1;
}
}
}
/* case FL_MOUSEWHEEL: */
/* { */
/* // vscroll->deactivate(); */
/* int r = Fl_Overlay_Window::handle( m ); */
/* /\* vscroll->activate(); *\/ */
/* if ( r ) */
/* return r; */
/* /\* if ( hscroll->handle( m ) ) *\/ */
/* /\* return 1; *\/ */
/* /\* return vscroll->handle( m ); *\/ */
/* } */
default:
return Fl_Overlay_Window::handle( m );
}
}
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