non/Track.C

316 lines
8.1 KiB
C

/*******************************************************************************/
/* 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 "Track.H"
#include "Timeline.H"
#include "Region.H"
#include <FL/fl_draw.H>
queue <Track_Widget *> Track::_delete_queue;
Track_Widget *Track::_pushed = NULL;
Track_Widget *Track::_belowmouse = NULL;
void
Track::sort ( void )
{
_widgets.sort( Track_Widget::sort_func );
}
/** return a pointer to the widget that /r/ overlaps, or NULL if none. */
Track_Widget *
Track::overlaps ( Track_Widget *r )
{
for ( list <Track_Widget *>::const_iterator i = _widgets.begin(); i != _widgets.end(); i++ )
{
if ( *i == r ) continue;
if ( ! ( (*i)->offset() > r->offset() + r->length() || (*i)->offset() + (*i)->length() < r->offset() ) )
return *i;
}
return NULL;
}
void
Track::draw ( void )
{
if ( ! fl_not_clipped( x(), y(), w(), h() ) )
return;
fl_push_clip( x(), y(), w(), h() );
Fl_Group::draw();
int X, Y, W, H;
fl_clip_box( x(), y(), w(), h(), X, Y, W, H );
// printf( "track::draw %d,%d %dx%d\n", X,Y,W,H );
for ( list <Track_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
(*r)->draw_box( X, Y, W, H );
/* draw crossfades */
for ( list <Track_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
{
Track_Widget *o = overlaps( *r );
if ( o )
{
if ( *o < **r )
{
Rectangle b( (*r)->x(), o->y(), (o->x() + o->w()) - (*r)->x(), o->h() );
Fl_Color c = fl_color_average( o->box_color(), (*r)->box_color(), 0.50f );
c = fl_color_average( c, FL_YELLOW, 0.30f );
fl_push_clip( b.x, b.y, b.w, b.h );
draw_box( FL_FLAT_BOX, b.x - 100, b.y, b.w + 200, b.h, c );
draw_box( FL_UP_FRAME, b.x - 100, b.y, b.w + 200, b.h, c );
/* fl_color( FL_BLACK ); */
/* fl_line_style( FL_DOT, 4 ); */
/* b.x = (*r)->line_x(); */
/* b.w = min( 32767, (*r)->abs_w() ); */
/* fl_line( b.x, b.y, b.x + b.w, b.y + b.h ); */
/* fl_line( b.x, b.y + b.h, b.x + b.w, b.y ); */
/* fl_line_style( FL_SOLID, 0 ); */
fl_pop_clip();
}
}
}
for ( list <Track_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
(*r)->draw( X, Y, W, H );
timeline->draw_measure_lines( x(), y(), w(), h(), color() );
fl_pop_clip();
}
void
Track::remove ( Track_Widget *r )
{
// Logger _log( this );
_widgets.remove( r );
}
void
Track::remove_selected ( void )
{
Loggable::block_start();
for ( list <Track_Widget *>::iterator r = _widgets.begin(); r != _widgets.end(); )
if ( (*r)->selected() )
{
Track_Widget *t = *r;
_widgets.erase( r++ );
delete t;
}
else
++r;
Loggable::block_end();
}
Track_Widget *
Track::event_widget ( void )
{
nframes_t ets = timeline->xoffset + timeline->x_to_ts( Fl::event_x() - x() );
for ( list <Track_Widget *>::const_reverse_iterator r = _widgets.rbegin(); r != _widgets.rend(); r++ )
if ( ets > (*r)->offset() && ets < (*r)->offset() + (*r)->length() )
return (*r);
return NULL;
}
void
Track::select_range ( int X, int W )
{
nframes_t sts = timeline->xoffset + timeline->x_to_ts( X - x() );
nframes_t ets = sts + timeline->x_to_ts( W );
for ( list <Track_Widget *>::const_reverse_iterator r = _widgets.rbegin(); r != _widgets.rend(); r++ )
if ( ! ( (*r)->offset() > ets || (*r)->offset() + (*r)->length() < sts ) )
(*r)->select();
}
void
Track::add ( Track_Widget *r )
{
// Logger _log( this );
if ( r->track() )
{
r->redraw();
r->track()->remove( r );
// r->track()->redraw();
}
r->track( this );
_widgets.push_back( r );
sort();
}
/* snap /r/ to nearest edge */
void
Track::snap ( Track_Widget *r )
{
const int snap_pixels = 10;
const int rx1 = r->x();
const int rx2 = r->x() + r->w();
for ( list <Track_Widget*>::iterator i = _widgets.begin(); i != _widgets.end(); i++ )
{
const Track_Widget *w = (*i);
if ( w == r )
continue;
const int wx1 = w->x();
const int wx2 = w->x() + w->w();
if ( abs( rx1 - wx2 ) < snap_pixels )
{
r->offset( w->offset() + w->length() + 1 );
// printf( "snap: %lu | %lu\n", w->offset() + w->length(), r->offset() );
goto done;
}
if ( abs( rx2 - wx1 ) < snap_pixels )
{
r->offset( ( w->offset() - r->length() ) - 1 );
// printf( "snap: %lu | %lu\n", r->offset() + r->length(), w->offset() );
goto done;
}
}
{
int nx = timeline->nearest_line( r->abs_x() );
if ( nx >= 0 )
{
r->offset( timeline->x_to_ts( nx ) );
return;
}
}
// r->offset( timeline->x_to_ts( r->x() ) );
done:
return;
// r->resize();
// r->position( rx1, y() );
}
int
Track::handle ( int m )
{
switch ( m )
{
case FL_DND_ENTER:
printf( "enter\n" );
if ( pushed() && pushed()->track()->class_name() == class_name() )
{
add( pushed() );
redraw();
}
case FL_DND_LEAVE:
return 1;
case FL_MOVE:
{
Track_Widget *r = event_widget();
if ( r != belowmouse() )
{
if ( belowmouse() )
belowmouse()->handle( FL_LEAVE );
_belowmouse = r;
if ( r )
r->handle( FL_ENTER );
}
return 0;
}
default:
{
Track_Widget *r = pushed() ? pushed() : event_widget();
if ( r )
{
int retval = r->dispatch( m );
if ( retval && m == FL_PUSH )
_pushed = r;
if ( retval && m == FL_RELEASE )
_pushed = NULL;
Loggable::block_start();
while ( _delete_queue.size() )
{
Track_Widget *t = _delete_queue.front();
_delete_queue.pop();
if ( pushed() == t )
_pushed = NULL;
if ( belowmouse() == t )
{
belowmouse()->handle( FL_LEAVE );
_belowmouse = NULL;
}
delete t;
}
Loggable::block_end();
return retval;
}
else
return Fl_Group::handle( m );
}
}
}