non/Track.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 "Track.H"
#include "Timeline.H"
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#include "Region.H"
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#include <FL/fl_draw.H>
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Track_Widget * Track::_queued_widget = NULL;
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static bool
sort_func ( Track_Widget *lhs, Track_Widget *rhs )
{
return *lhs < *rhs;
}
void
Track::sort ( void )
{
_widgets.sort( sort_func );
}
void
Track::draw ( void )
{
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if ( ! fl_not_clipped( x(), y(), w(), h() ) )
return;
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fl_push_clip( x(), y(), w(), h() );
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Fl_Group::draw();
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timeline->draw_measure_lines( x(), y(), w(), h(), color() );
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int X, Y, W, H;
fl_clip_box( x(), y(), w(), h(), X, Y, W, H );
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// 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 );
/* TODO: detect overlap and draw with transparency/crossfade */
for ( list <Track_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
(*r)->draw( X, Y, W, H );
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fl_pop_clip();
}
void
Track::remove ( Track_Widget *r )
{
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// Logger _log( this );
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_widgets.remove( r );
}
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Track_Widget *
Track::event_widget ( void )
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{
int 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++ )
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if ( ets > (*r)->offset() && ets < (*r)->offset() + (*r)->length() )
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return (*r);
return NULL;
}
void
Track::add ( Track_Widget *r )
{
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// Logger _log( this );
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if ( r->track() )
{
r->track()->remove( r );
r->track()->redraw();
}
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r->track( this );
_widgets.push_back( r );
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sort();
}
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/* snap /r/ to nearest edge */
void
Track::snap ( Track_Widget *r )
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{
const int snap_pixels = 10;
const int rx1 = r->x();
const int rx2 = r->x() + r->w();
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for ( list <Track_Widget*>::iterator i = _widgets.begin(); i != _widgets.end(); i++ )
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{
const Track_Widget *w = (*i);
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if ( w == r )
continue;
const int wx1 = w->x();
const int wx2 = w->x() + w->w();
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if ( abs( rx1 - wx2 ) < snap_pixels )
{
r->offset( w->offset() + w->length() + 1 );
// printf( "snap: %lu | %lu\n", w->offset() + w->length(), r->offset() );
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goto done;
}
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if ( abs( rx2 - wx1 ) < snap_pixels )
{
r->offset( ( w->offset() - r->length() ) - 1 );
// printf( "snap: %lu | %lu\n", r->offset() + r->length(), w->offset() );
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goto done;
}
}
{
int nx = timeline->nearest_line( r->abs_x() );
if ( nx >= 0 )
{
r->offset( timeline->x_to_ts( nx ) );
return;
}
}
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// r->offset( timeline->x_to_ts( r->x() ) );
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done:
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return;
// r->resize();
// r->position( rx1, y() );
}
int
Track::handle ( int m )
{
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static Track_Widget *pushed;
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switch ( m )
{
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case FL_MOVE:
/* these aren't used, so don't bother doing lookups for them */
return 1;
default:
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{
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Track_Widget *r = pushed ? pushed : event_widget();
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if ( r )
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{
int retval = r->handle( m );
if ( retval && m == FL_PUSH )
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pushed = r;
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if ( retval && m == FL_RELEASE )
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pushed = NULL;
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if ( _queued_widget )
{
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// remove( _queued_widget );
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delete _queued_widget;
_queued_widget = NULL;
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pushed = NULL;
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}
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return retval;
}
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else
return Fl_Group::handle( m );
}
}
}