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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 "Sequence.H"
#include "Timeline.H"
#include "Audio_Region.H"
#include <FL/fl_draw.H>
#include "Track.H"
#include "../FL/Boxtypes.H"
queue <Sequence_Widget *> Sequence::_delete_queue;
Sequence::Sequence ( Track *track ) : Fl_Widget( 0, 0, 0, 0 ), Loggable( true )
{
init();
_track = track;
// log_create();
}
Sequence::Sequence ( int X, int Y, int W, int H ) : Fl_Widget( X, Y, W, H ), Loggable( false )
{
init();
}
void
Sequence::init ( void )
{
_track = NULL;
_name = NULL;
box( FL_DOWN_BOX );
color( FL_BACKGROUND_COLOR );
align( FL_ALIGN_LEFT );
}
Sequence::~Sequence ( )
{
if ( _name )
free( _name );
for ( std::list <Sequence_Widget*>::iterator i = _widgets.begin();
i != _widgets.end(); ++i )
{
Sequence_Widget *w = *i;
*i = NULL;
delete w;
}
_widgets.clear();
parent()->redraw();
parent()->remove( this );
// log_destroy();
}
nframes_t
Sequence::x_to_offset ( int X )
{
return timeline->xoffset + timeline->x_to_ts( X - x() );
}
void
Sequence::sort ( void )
{
_widgets.sort( Sequence_Widget::sort_func );
}
/** return a pointer to the widget that /r/ overlaps, or NULL if none. */
Sequence_Widget *
Sequence::overlaps ( Sequence_Widget *r )
{
for ( list <Sequence_Widget *>::const_iterator i = _widgets.begin(); i != _widgets.end(); i++ )
{
if ( *i == r ) continue;
if ( ! ( (*i)->start() > r->start() + r->length() || (*i)->start() + (*i)->length() < r->start() ) )
return *i;
}
return NULL;
}
void
Sequence::draw ( void )
{
if ( ! fl_not_clipped( x(), y(), w(), h() ) )
return;
fl_push_clip( x(), y(), w(), h() );
/* draw the box with the ends cut off. */
draw_box( box(), x() - Fl::box_dx( box() ) - 1, y(), w() + Fl::box_dw( box() ) + 2, h(), color() );
int X, Y, W, H;
fl_clip_box( x(), y(), w(), h(), X, Y, W, H );
if ( Sequence_Widget::pushed() && Sequence_Widget::pushed()->sequence() == this )
{
/* make sure the Sequence_Widget::pushed widget is above all others */
remove( Sequence_Widget::pushed() );
add( Sequence_Widget::pushed() );
}
// printf( "track::draw %d,%d %dx%d\n", X,Y,W,H );
timeline->draw_measure_lines( X, Y, W, H, color() );
for ( list <Sequence_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); ++r )
(*r)->draw_box();
for ( list <Sequence_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); ++r )
(*r)->draw();
fl_pop_clip();
}
void
Sequence::remove ( Sequence_Widget *r )
{
// Logger _log( this );
_widgets.remove( r );
}
void
Sequence::remove_selected ( void )
{
Loggable::block_start();
for ( list <Sequence_Widget *>::iterator r = _widgets.begin(); r != _widgets.end(); )
if ( (*r)->selected() )
{
Sequence_Widget *t = *r;
_widgets.erase( r++ );
delete t;
}
else
++r;
Loggable::block_end();
}
Sequence_Widget *
Sequence::event_widget ( void )
{
nframes_t ets = timeline->xoffset + timeline->x_to_ts( Fl::event_x() - x() );
for ( list <Sequence_Widget *>::const_reverse_iterator r = _widgets.rbegin(); r != _widgets.rend(); r++ )
if ( ets > (*r)->start() && ets < (*r)->start() + (*r)->length()
&& Fl::event_y() >= (*r)->y() && Fl::event_y() <= (*r)->y() + (*r)->h() )
return (*r);
return NULL;
}
void
Sequence::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 <Sequence_Widget *>::const_reverse_iterator r = _widgets.rbegin(); r != _widgets.rend(); r++ )
if ( ! ( (*r)->start() > ets || (*r)->start() + (*r)->length() < sts ) )
(*r)->select();
}
void
Sequence::add ( Sequence_Widget *r )
{
// Logger _log( this );
if ( r->sequence() )
{
r->redraw();
r->sequence()->remove( r );
// r->track()->redraw();
}
r->sequence( this );
_widgets.push_back( r );
sort();
}
static nframes_t
abs_diff ( nframes_t n1, nframes_t n2 )
{
return n1 > n2 ? n1 - n2 : n2 - n1;
}
/* snap /r/ to nearest edge */
void
Sequence::snap ( Sequence_Widget *r )
{
const int snap_pixels = 10;
const int snap_frames = timeline->x_to_ts( snap_pixels );
/* snap to other widgets */
if ( Timeline::snap_magnetic )
{
const int rx1 = r->start();
const int rx2 = r->start() + r->length();
for ( list <Sequence_Widget*>::const_iterator i = _widgets.begin(); i != _widgets.end(); i++ )
{
const Sequence_Widget *w = (*i);
if ( w == r )
continue;
const int wx1 = w->start();
const int wx2 = w->start() + w->length();
if ( abs_diff( rx1, wx2 ) < snap_frames )
{
r->start( w->start() + w->length() + 1 );
return;
}
if ( abs_diff( rx2, wx1 ) < snap_frames )
{
r->start( ( w->start() - r->length() ) - 1 );
return;
}
}
}
nframes_t f;
/* snap to beat/bar lines */
if ( timeline->nearest_line( r->start(), &f ) )
r->start( f );
}
int
Sequence::handle ( int m )
{
switch ( m )
{
case FL_FOCUS:
case FL_UNFOCUS:
case FL_LEAVE:
fl_cursor( FL_CURSOR_DEFAULT );
return 1;
case FL_DND_DRAG:
return 1;
case FL_ENTER:
if ( Sequence_Widget::pushed() )
{
if ( Sequence_Widget::pushed()->sequence()->class_name() == class_name() )
{
/* accept objects dragged from other sequences of this type */
add( Sequence_Widget::pushed() );
redraw();
fl_cursor( FL_CURSOR_MOVE );
}
else
fl_cursor( (Fl_Cursor)1 );
}
else
fl_cursor( cursor() );
return 1;
case FL_DND_ENTER:
case FL_DND_LEAVE:
case FL_DND_RELEASE:
return 1;
case FL_MOVE:
{
Sequence_Widget *r = event_widget();
if ( r != Sequence_Widget::belowmouse() )
{
if ( Sequence_Widget::belowmouse() )
Sequence_Widget::belowmouse()->handle( FL_LEAVE );
Sequence_Widget::belowmouse( r );
if ( r )
r->handle( FL_ENTER );
}
return 0;
}
default:
{
Sequence_Widget *r = Sequence_Widget::pushed() ? Sequence_Widget::pushed() : event_widget();
if ( r )
{
int retval = r->dispatch( m );
if ( retval && m == FL_PUSH )
{
take_focus();
Sequence_Widget::pushed( r );
}
if ( retval && m == FL_RELEASE )
Sequence_Widget::pushed( NULL );
Loggable::block_start();
while ( _delete_queue.size() )
{
Sequence_Widget *t = _delete_queue.front();
_delete_queue.pop();
if ( Sequence_Widget::pushed() == t )
Sequence_Widget::pushed( NULL );
if ( Sequence_Widget::belowmouse() == t )
{
Sequence_Widget::belowmouse()->handle( FL_LEAVE );
Sequence_Widget::belowmouse( NULL );
}
timeline->wrlock();
delete t;
timeline->unlock();
}
Loggable::block_end();
return retval;
}
else
return Fl_Widget::handle( m );
}
}
}
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