373 lines
11 KiB
C++
373 lines
11 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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#pragma once
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#include "Sequence.H"
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#include "Loggable.H"
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#include "Timeline.H"
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#include <list>
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#include <algorithm>
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using namespace std;
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class Sequence_Widget;
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struct Drag
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{
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/* mouse coords at start of drag */
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int x;
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int y;
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int state;
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Sequence_Widget *original;
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Drag( int X, int Y ) : x( X ), y( Y ) { state = 0; }
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};
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struct Range
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{
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nframes_t offset; /* where on the timeline */
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nframes_t start; /* first sample from clip */
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nframes_t end; /* last sample from clip */
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};
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/* Base class for virtual widget on a track */
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class Sequence_Widget : public Loggable
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{
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static list <Sequence_Widget *> _selection; /* all the widgets making up the selection */
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/* FIXME: is this not the same as /pushed/? */
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static Sequence_Widget * _current; /* the widget initiating events that affect the selection */
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/* these are actually managed in the Sequence classes */
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static Sequence_Widget * _pushed; /* the widget receiving drag events (a copy) */
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static Sequence_Widget * _original; /* the original of the /pushed/ widget */
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static Sequence_Widget * _belowmouse; /* the widget below the mouse cursor */
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/* can't have this */
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Sequence_Widget ( const Sequence_Widget &rhs );
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protected:
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Sequence *_track; /* track this region belongs to */
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Range _range; /* range for playback */
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Range *_r; /* range for editing / display (points to the same thing as above, except for when dragging etc) */
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Fl_Color _color; /* color of waveform */
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Fl_Color _box_color; /* color of background (box) */
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Drag *_drag;
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virtual void get ( Log_Entry &e ) const
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{
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e.add( ":x", _r->offset );
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e.add( ":l", _r->start );
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e.add( ":r", _r->end );
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e.add( ":t", _track );
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e.add( ":s", selected() );
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}
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virtual void
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set ( Log_Entry &e )
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{
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for ( int i = 0; i < e.size(); ++i )
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{
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const char *s, *v;
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e.get( i, &s, &v );
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if ( ! strcmp( s, ":x" ) )
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_r->offset = atoll( v );
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else if ( ! strcmp( s, ":l" ) )
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_r->start = atoll( v );
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else if ( ! strcmp( s, ":r" ) )
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_r->end = atoll( v );
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else if ( ! strcmp( s, ":s" ) )
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{
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if ( atoi( v ) )
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select();
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else
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deselect();
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}
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else if ( ! strcmp( s, ":t" ) )
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{
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int i;
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sscanf( v, "%X", &i );
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Sequence *t = (Sequence*)Loggable::find( i );
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assert( t );
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t->add( this );
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}
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// else
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// e.erase( i );
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}
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if ( _track )
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_track->redraw();
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}
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public:
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Sequence_Widget ( )
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{
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_track = NULL;
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_r = &_range;
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_r->offset = _r->start = _r->end = 0;
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_drag = NULL;
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_box_color = FL_BACKGROUND_COLOR;
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_color = FL_FOREGROUND_COLOR;
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}
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virtual ~Sequence_Widget ( )
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{
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redraw();
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_track->remove( this );
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_selection.remove( this );
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}
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const Sequence_Widget &
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operator= ( const Sequence_Widget &rhs )
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{
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if ( this == &rhs )
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return *this;
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_r = &_range;
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_range = rhs._range;
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_track = rhs._track;
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_box_color = rhs._box_color;
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_color = rhs._color;
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return *this;
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}
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/* Sequence_Widget ( const Sequence_Widget &rhs ) */
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/* { */
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/* *this = rhs; */
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/* } */
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virtual Sequence_Widget *clone ( const Sequence_Widget *r ) = 0;
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bool selected ( void ) const
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{
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return ::find( _selection.begin(), _selection.end(), this ) != _selection.end();
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}
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void select ( void )
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{
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if ( selected() )
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return;
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_selection.push_back( this );
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_selection.sort( sort_func );
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redraw();
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}
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void deselect ( void )
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{
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_selection.remove( this );
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redraw();
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}
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static void
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delete_selected ( void )
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{
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while ( _selection.size() )
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delete _selection.front();
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}
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static Sequence_Widget *current ( void ) { return Sequence_Widget::_current; }
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static Sequence_Widget *pushed ( void ) { return Sequence_Widget::_pushed; }
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static Sequence_Widget *belowmouse ( void ) { return Sequence_Widget::_belowmouse; }
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static void pushed ( Sequence_Widget *w ) { Sequence_Widget::_pushed = w; }
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static void belowmouse ( Sequence_Widget *w ) { Sequence_Widget::_belowmouse = w; }
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// static void pushed ( Sequence_Widget *w ) { Sequence_Widget::_pushed = w; }
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void begin_drag ( const Drag &d )
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{
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_drag = new Drag( d );
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_r = new Range( _range );
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}
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void end_drag ( void )
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{
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_range = *_r;
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delete _r;
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_r = &_range;
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delete _drag;
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_drag = NULL;
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}
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void
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offset ( nframes_t where )
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{
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if ( ! selected() )
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{
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redraw();
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_r->offset = where;
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}
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else
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{
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long d = where - _r->offset;
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for ( list <Sequence_Widget *>::iterator i = _selection.begin(); i != _selection.end(); i++ )
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{
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(*i)->redraw();
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if ( d < 0 )
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(*i)->_r->offset -= 0 - d;
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else
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(*i)->_r->offset += d;
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}
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}
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}
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int dispatch ( int m );
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Fl_Widget * parent ( void ) const { return _track; }
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int scroll_x ( void ) const { return timeline->ts_to_x( timeline->xoffset ); }
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nframes_t scroll_ts ( void ) const { return timeline->xoffset; }
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virtual int y ( void ) const { return _track->y(); }
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virtual int h ( void ) const { return _track->h(); }
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/* used by regions */
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virtual int x ( void ) const
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{
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return _r->offset < timeline->xoffset ? _track->x() : min( _track->x() + _track->w(), _track->x() + timeline->ts_to_x( _r->offset - timeline->xoffset ) );
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}
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/* use this as x() when you need to draw lines between widgets */
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int line_x ( void ) const
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{
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return _r->offset < timeline->xoffset ? max( -32768, _track->x() - timeline->ts_to_x( timeline->xoffset - _r->offset )) : min( 32767, _track->x() + timeline->ts_to_x( _r->offset - timeline->xoffset ) );
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}
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virtual int w ( void ) const
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{
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int tx = timeline->ts_to_x( _r->offset );
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int rw;
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if ( tx < scroll_x() )
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rw = abs_w() - (scroll_x() - tx);
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else
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rw = abs_w();
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return min( rw, _track->w() );
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}
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int abs_x ( void ) const { return timeline->ts_to_x( _r->offset ); }
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virtual int abs_w ( void ) const { return timeline->ts_to_x( _r->end - _r->start ); }
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Fl_Color color ( void ) { return _color; }
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void color ( Fl_Color v ) { _color = v; }
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Fl_Color box_color ( void ) { return _box_color; }
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Sequence * track ( void ) const { return _track; }
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void track ( Sequence *t ) { _track = t; }
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nframes_t offset ( void ) const { return _r->offset; }
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// void offset ( nframes_t o ) { _r->offset = o; }
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void end ( nframes_t v ) { _r->end = v; }
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nframes_t end ( void ) const { return _r->end; }
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void start ( nframes_t v ) { _r->start = v; }
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nframes_t start ( void ) const { return _r->start; }
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/** convert a screen x coord into an offset into the region */
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nframes_t x_to_offset ( int X )
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{
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return timeline->x_to_ts( scroll_x() + ( X - _track->x() ) ) - _r->offset;
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}
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int active_r ( void ) const { return _track->active_r(); }
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virtual nframes_t length ( void ) const { return _r->end - _r->start; }
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virtual Fl_Boxtype box ( void ) const { return FL_UP_BOX; }
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virtual Fl_Align align ( void ) const { return (Fl_Align)0; }
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virtual void
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redraw ( void )
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{
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if ( ! (align() & FL_ALIGN_INSIDE) )
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{
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// FIXME: to better..
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_track->redraw();
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}
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else
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_track->damage( FL_DAMAGE_EXPOSE, x(), y(), w(), h() );
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}
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/* just draw a simple box */
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virtual void
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draw_box ( void )
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{
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fl_draw_box( box(), x(), y(), w(), h(), _box_color );
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}
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virtual void
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draw ( void )
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{
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draw_box();
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}
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bool
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operator< ( const Sequence_Widget & rhs )
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{
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return _r->offset < rhs._r->offset;
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}
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bool
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operator<=( const Sequence_Widget & rhs )
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{
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return _r->offset <= rhs._r->offset;
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}
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virtual void draw_label ( const char *label, Fl_Align align, Fl_Color color=(Fl_Color)0 );
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virtual int handle ( int m );
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static bool
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sort_func ( Sequence_Widget *lhs, Sequence_Widget *rhs )
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{
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return *lhs < *rhs;
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}
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};
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