537 lines
14 KiB
C
537 lines
14 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 "Sequence.H"
|
||
#include "Timeline.H"
|
||
|
||
#include <FL/fl_draw.H>
|
||
|
||
#include "Track.H"
|
||
|
||
#include "FL/event_name.H"
|
||
|
||
#include "Transport.H" // for locate()
|
||
|
||
#include "../FL/Boxtypes.H"
|
||
|
||
using namespace std;
|
||
|
||
|
||
|
||
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 );
|
||
|
||
// clear_visible_focus();
|
||
}
|
||
|
||
Sequence::~Sequence ( )
|
||
{
|
||
DMESSAGE( "destroying sequence" );
|
||
|
||
if ( _name )
|
||
free( _name );
|
||
|
||
if ( _widgets.size() )
|
||
FATAL( "programming error: leaf destructor must call Sequence::clear()!" );
|
||
}
|
||
|
||
|
||
|
||
/** remove all widgets from this sequence */
|
||
void
|
||
Sequence::clear ( void )
|
||
{
|
||
Loggable::block_start();
|
||
|
||
for ( std::list <Sequence_Widget*>::iterator i = _widgets.begin();
|
||
i != _widgets.end(); ++i )
|
||
{
|
||
Sequence_Widget *w = *i;
|
||
|
||
*i = NULL;
|
||
|
||
delete w;
|
||
}
|
||
|
||
_widgets.clear();
|
||
|
||
Loggable::block_end();
|
||
}
|
||
|
||
/** given screen pixel coordinate X, return an absolute frame offset into this sequence */
|
||
nframes_t
|
||
Sequence::x_to_offset ( int X )
|
||
{
|
||
return timeline->xoffset + timeline->x_to_ts( X - x() );
|
||
}
|
||
|
||
/** sort the widgets in this sequence by position */
|
||
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)->overlaps( r ) )
|
||
return *i;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
Sequence::handle_widget_change ( nframes_t start, nframes_t length )
|
||
{
|
||
// timeline->update_length( start + length );
|
||
}
|
||
|
||
Sequence_Widget *
|
||
Sequence::widget_at ( nframes_t ts, int Y )
|
||
{
|
||
for ( list <Sequence_Widget *>::const_reverse_iterator r = _widgets.rbegin(); r != _widgets.rend(); ++r )
|
||
if ( ts >= (*r)->start() && ts <= (*r)->start() + (*r)->length()
|
||
&& Y >= (*r)->y() && Y <= (*r)->y() + (*r)->h() )
|
||
return (*r);
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/** return a pointer to the widget under the current mouse event, or
|
||
* NULL if no widget intersects the event coordinates */
|
||
Sequence_Widget *
|
||
Sequence::event_widget ( void )
|
||
{
|
||
nframes_t ets = timeline->xoffset + timeline->x_to_ts( Fl::event_x() - x() );
|
||
return widget_at( ets, Fl::event_y() );
|
||
}
|
||
|
||
void
|
||
Sequence::add ( Sequence_Widget *r )
|
||
{
|
||
// Logger _log( this );
|
||
|
||
if ( r->sequence() )
|
||
{
|
||
r->redraw();
|
||
r->sequence()->remove( r );
|
||
// r->track()->redraw();
|
||
}
|
||
|
||
timeline->wrlock();
|
||
|
||
r->sequence( this );
|
||
_widgets.push_back( r );
|
||
|
||
sort();
|
||
|
||
timeline->unlock();
|
||
|
||
handle_widget_change( r->start(), r->length() );
|
||
}
|
||
|
||
void
|
||
Sequence::remove ( Sequence_Widget *r )
|
||
{
|
||
timeline->wrlock();
|
||
|
||
_widgets.remove( r );
|
||
|
||
timeline->unlock();
|
||
|
||
handle_widget_change( r->start(), r->length() );
|
||
}
|
||
|
||
static nframes_t
|
||
abs_diff ( nframes_t n1, nframes_t n2 )
|
||
{
|
||
return n1 > n2 ? n1 - n2 : n2 - n1;
|
||
}
|
||
|
||
/** snap widget /r/ to nearest edge */
|
||
void
|
||
Sequence::snap ( Sequence_Widget *r )
|
||
{
|
||
const int snap_pixels = 10;
|
||
const nframes_t 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 = r->start();
|
||
|
||
/* snap to beat/bar lines */
|
||
if ( timeline->nearest_line( &f ) )
|
||
r->start( f );
|
||
}
|
||
|
||
|
||
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();
|
||
|
||
}
|
||
|
||
int
|
||
Sequence::handle ( int m )
|
||
{
|
||
|
||
/* if ( m != FL_NO_EVENT ) */
|
||
/* DMESSAGE( "%s", event_name( m ) ); */
|
||
|
||
switch ( m )
|
||
{
|
||
case FL_KEYBOARD:
|
||
case FL_SHORTCUT:
|
||
if ( Fl::test_shortcut( FL_CTRL + FL_Right ) )
|
||
{
|
||
transport->locate( next( transport->frame ) );
|
||
return 1;
|
||
}
|
||
else if ( Fl::test_shortcut( FL_CTRL + FL_Left ) )
|
||
{
|
||
transport->locate( prev( transport->frame ) );
|
||
return 1;
|
||
}
|
||
else if ( Fl::test_shortcut( FL_CTRL + ' ' ) )
|
||
{
|
||
Sequence_Widget *r = widget_at( transport->frame, y() );
|
||
|
||
if ( r )
|
||
{
|
||
if ( r->selected() )
|
||
r->deselect();
|
||
else
|
||
r->select();
|
||
}
|
||
}
|
||
else
|
||
{
|
||
switch ( Fl::event_key() )
|
||
{
|
||
case FL_Left:
|
||
case FL_Right:
|
||
case FL_Up:
|
||
case FL_Down:
|
||
/* this is a hack to override FLTK's use of arrow keys for
|
||
* focus navigation */
|
||
return timeline->handle_scroll( m );
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
if ( Sequence_Widget::belowmouse() )
|
||
return Sequence_Widget::belowmouse()->dispatch( m );
|
||
case FL_NO_EVENT:
|
||
/* garbage from overlay window */
|
||
return 0;
|
||
case FL_FOCUS:
|
||
case FL_UNFOCUS:
|
||
Fl_Widget::handle( m );
|
||
redraw();
|
||
return 1;
|
||
case FL_LEAVE:
|
||
// DMESSAGE( "leave" );
|
||
fl_cursor( FL_CURSOR_DEFAULT );
|
||
Fl_Widget::handle( m );
|
||
return 1;
|
||
case FL_DND_DRAG:
|
||
return 1;
|
||
case FL_ENTER:
|
||
// DMESSAGE( "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
|
||
if ( ! event_widget() )
|
||
fl_cursor( cursor() );
|
||
|
||
Fl_Widget::handle( m );
|
||
|
||
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 1;
|
||
}
|
||
default:
|
||
{
|
||
Sequence_Widget *r = Sequence_Widget::pushed() ? Sequence_Widget::pushed() : event_widget();
|
||
|
||
/* if ( this == Fl::focus() ) */
|
||
/* DMESSAGE( "Sequence widget = %p", r ); */
|
||
|
||
if ( r )
|
||
{
|
||
int retval = r->dispatch( m );
|
||
|
||
/* DMESSAGE( "retval = %d", retval ); */
|
||
|
||
if ( m == FL_PUSH )
|
||
take_focus();
|
||
|
||
if ( retval )
|
||
{
|
||
if ( m == FL_PUSH )
|
||
{
|
||
if ( Sequence_Widget::pushed() )
|
||
Sequence_Widget::pushed()->handle( FL_UNFOCUS );
|
||
|
||
Sequence_Widget::pushed( r );
|
||
|
||
r->handle( FL_FOCUS );
|
||
}
|
||
else if ( 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 );
|
||
}
|
||
|
||
delete t;
|
||
}
|
||
|
||
Loggable::block_end();
|
||
|
||
if ( m == FL_PUSH )
|
||
return 1;
|
||
else
|
||
return retval;
|
||
}
|
||
else
|
||
return Fl_Widget::handle( m );
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/**********/
|
||
/* Public */
|
||
/**********/
|
||
|
||
/** calculate the length of this sequence by looking at the end of the
|
||
* least widget it contains */
|
||
|
||
/** return the length in frames of this sequence calculated from the
|
||
* right edge of the rightmost widget */
|
||
nframes_t
|
||
Sequence::length ( void ) const
|
||
{
|
||
nframes_t l = 0;
|
||
|
||
for ( list <Sequence_Widget *>::const_iterator r = _widgets.begin(); r != _widgets.end(); ++r )
|
||
l = max( l, (*r)->start() + (*r)->length() );
|
||
|
||
return l;
|
||
}
|
||
|
||
/** return the location of the next widget from frame /from/ */
|
||
nframes_t
|
||
Sequence::next ( nframes_t from ) const
|
||
{
|
||
for ( list <Sequence_Widget*>::const_iterator i = _widgets.begin(); i != _widgets.end(); i++ )
|
||
if ( (*i)->start() > from )
|
||
return (*i)->start();
|
||
|
||
if ( _widgets.size() )
|
||
return _widgets.back()->start();
|
||
else
|
||
return 0;
|
||
}
|
||
|
||
/** return the location of the next widget from frame /from/ */
|
||
nframes_t
|
||
Sequence::prev ( nframes_t from ) const
|
||
{
|
||
for ( list <Sequence_Widget*>::const_reverse_iterator i = _widgets.rbegin(); i != _widgets.rend(); i++ )
|
||
if ( (*i)->start() < from )
|
||
return (*i)->start();
|
||
|
||
if ( _widgets.size() )
|
||
return _widgets.front()->start();
|
||
else
|
||
return 0;
|
||
}
|
||
|
||
/** delete all selected widgets in this sequence */
|
||
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();
|
||
}
|
||
|
||
/** select all widgets intersecting with the range defined by the
|
||
* pixel coordinates X through W */
|
||
void
|
||
Sequence::select_range ( int X, int W )
|
||
{
|
||
nframes_t sts = x_to_offset( 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();
|
||
}
|