184 lines
4.8 KiB
C
184 lines
4.8 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 "Track.H"
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#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
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sort_func ( Track_Widget *lhs, Track_Widget *rhs )
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{
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return *lhs < *rhs;
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}
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void
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Track::sort ( void )
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{
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_widgets.sort( sort_func );
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}
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void
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Track::draw ( void )
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{
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Fl_Group::draw();
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timeline.draw_measure_lines( x(), y(), w(), h(), color() );
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fl_push_clip( x(), y(), w(), h() );
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for ( list <Track_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
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(*r)->draw_box( x(), y(), w(), h() );
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/* TODO: detect overlap and draw with transparency/crossfade */
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for ( list <Track_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); r++ )
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(*r)->draw( x(), y(), w(), h() );
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fl_pop_clip();
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}
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void
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Track::remove ( Track_Widget *r )
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{
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_widgets.remove( r );
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}
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Track_Widget *
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Track::event_widget ( void )
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{
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// FIXME: doesn't handle overlap!
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int ets = timeline.xoffset + timeline.x_to_ts( Fl::event_x() );
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for ( list <Track_Widget *>::iterator r = _widgets.begin(); r != _widgets.end(); r++ )
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if ( ets > (*r)->offset() && ets < (*r)->offset() + (*r)->length() )
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return (*r);
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return NULL;
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}
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void
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Track::add ( Track_Widget *r )
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{
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if ( r->track() )
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{
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r->track()->remove( r );
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r->track()->redraw();
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}
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_widgets.push_back( r );
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r->track( this );
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}
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/* snap /r/ to nearest edge */
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void
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Track::snap ( Track_Widget *r )
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{
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const int snap_pixels = 10;
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int rx1 = r->x();
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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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{
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const Track_Widget *w = (*i);
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if ( w == r )
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continue;
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int wx1 = w->x();
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int wx2 = w->x() + w->w();
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if ( abs( rx1 - wx2 ) < snap_pixels )
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{
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r->offset( w->offset() + w->length() + 1 );
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printf( "snap: %lu | %lu\n", w->offset() + w->length(), r->offset() );
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goto done;
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}
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if ( abs( rx2 - wx1 ) < snap_pixels )
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{
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r->offset( ( w->offset() - r->length() ) - 1 );
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printf( "snap: %lu | %lu\n", r->offset() + r->length(), w->offset() );
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goto done;
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}
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}
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// r->offset( timeline.x_to_ts( r->x() ) );
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done:
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return;
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// r->resize();
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// r->position( rx1, y() );
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}
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int
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Track::handle ( int m )
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{
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static Track_Widget *current_widget;
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switch ( m )
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{
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case FL_MOVE:
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/* these aren't used, so don't bother doing lookups for them */
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return 1;
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default:
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{
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Track_Widget *r = event_widget();
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if ( current_widget )
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r = current_widget;
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if ( r )
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{
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int retval = r->handle( m );
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if ( retval && m == FL_PUSH )
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current_widget = r;
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if ( retval && m == FL_RELEASE )
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current_widget = NULL;
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if ( _queued_widget )
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{
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remove( _queued_widget );
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delete _queued_widget;
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_queued_widget = NULL;
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current_widget = NULL;
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redraw();
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}
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return retval;
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}
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else
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return Fl_Group::handle( m );
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}
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}
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}
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