333 lines
11 KiB
C++
333 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 std::min;
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using std::max;
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class Sequence_Widget;
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struct Drag
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{
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/* mouse coords at offset of drag */
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int x;
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int y;
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int state;
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// nframes_t start;
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int64_t offset;
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Drag( int X, int Y, uint64_t offset=0 ) : x( X ), y( Y ), offset( offset ) { state = 0; }
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};
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/* most common position description. /offset/ is only used by Regions,
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but it's more convenient to have it here */
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struct Range
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{
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nframes_t start; /* where on the timeline */
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nframes_t offset; /* first sample from clip */
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nframes_t length; /* total number of samples */
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void
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set_left ( nframes_t f )
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{
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offset += f - start;
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length -= f - start;
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start = f;
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}
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void
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set_right ( nframes_t f )
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{
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length = f - start;
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}
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Range ( ) : start( 0 ), offset( 0 ), length( 0 )
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{
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}
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};
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/* Used by time/tempo points or any other child of Sequence_Widget
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which must be locked to a point in musical time rather than wallclock
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time. Bar and beat start at 1. */
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struct BBT
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{
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unsigned short bar;
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unsigned char beat;
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unsigned short tick;
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BBT ( ) : bar( 0 ), beat( 0 ), tick( 0 )
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{
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}
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};
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/* FIXME: wrong place for this */
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struct position_info
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{
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nframes_t frame;
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float tempo;
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int beats_per_bar;
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int beat_type;
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BBT bbt;
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};
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#define SEQUENCE_WIDGET_CLONE_FUNC(class) \
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virtual Sequence_Widget *clone ( void ) const \
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{ \
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return new class ( *this ); \
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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 std::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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static Fl_Color _selection_color;
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protected:
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char *_label;
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Sequence *_sequence; /* track this region belongs to */
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Range _range; /* always used by RT/osc threads */
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Range _dragging_range; /* used when dragging */
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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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virtual void set ( Log_Entry &e );
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Sequence_Widget ( const Sequence_Widget &rhs );
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Sequence_Widget ( );
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const Sequence_Widget &
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operator= ( const Sequence_Widget &rhs );
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public:
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virtual ~Sequence_Widget ( );
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virtual Sequence_Widget *clone ( void ) const = 0;
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bool selected ( void ) const;
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static int nselected ( void )
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{ return _selection.size(); }
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void select ( void );
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void deselect ( void );
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void remove ( void );
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static void delete_selected ( void );
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static void select_none ( void );
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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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void begin_drag ( const Drag &d );
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void end_drag ( void );
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int dispatch ( int m );
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Fl_Widget * parent ( void ) const { return _sequence; }
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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 _sequence->y(); }
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virtual int h ( void ) const { return _sequence->h(); }
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/* used by regions */
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int get_x( nframes_t frame ) const
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{
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return frame < timeline->xoffset ?
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_sequence->drawable_x() :
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min( _sequence->drawable_x() + _sequence->drawable_w(), _sequence->drawable_x() + timeline->ts_to_x( frame - timeline->xoffset ) );
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}
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virtual int x ( void ) const
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{
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return get_x( _r->start );
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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->start < timeline->xoffset ?
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max( -32767, _sequence->drawable_x() - timeline->ts_to_x( timeline->xoffset - _r->start )) :
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min( 32767, _sequence->drawable_x() + timeline->ts_to_x( _r->start - 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->start );
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int rw;
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if ( _r->start < timeline->xoffset )
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{
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if ( _r->start + _r->length < timeline->xoffset )
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rw = 0;
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else
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rw = timeline->ts_to_x( ( _r->start + _r->length ) - timeline->xoffset );
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}
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else
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rw = abs_w();
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return min( rw, _sequence->drawable_w() );
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}
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int abs_x ( void ) const { return timeline->ts_to_x( _r->start ); }
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virtual int abs_w ( void ) const { return timeline->ts_to_x( _r->length ); }
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Fl_Color color ( void ) const { return _color; }
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void color ( Fl_Color v ) { _color = v; }
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virtual Fl_Color box_color ( void ) const { return _box_color; }
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virtual void box_color ( Fl_Color v ) { _box_color = v; }
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virtual Fl_Color selection_color ( void ) const { return _selection_color; }
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virtual void selection_color ( Fl_Color v ) { _selection_color = v; }
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virtual Fl_Color actual_box_color ( void ) const { return box_color(); }
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Sequence * sequence ( void ) const { return _sequence; }
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void sequence ( Sequence *t ) { _sequence = t; }
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nframes_t start ( void ) const { return _r->start; }
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/* void start ( nframes_t o ) { _r->start = o; } */
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void start ( nframes_t where );
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void length ( nframes_t v ) { _r->length = v; }
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virtual nframes_t length ( void ) const { return _r->length; }
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void offset ( nframes_t v ) { _r->offset = v; }
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nframes_t offset ( void ) const { return _r->offset; }
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void set_left ( nframes_t v ) { _r->set_left( v ); }
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void set_right ( nframes_t v ) { _r->set_right( v ); }
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const char *label ( void ) const { return _label; }
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void label ( const char *s )
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{
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if ( _label )
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free( _label );
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_label = NULL;
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if ( s )
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_label = strdup( s );
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redraw();
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}
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/** convert a screen x coord into an start 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 - _sequence->drawable_x() ) ) - _r->start;
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}
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int active_r ( void ) const { return _sequence->active_r(); }
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/** returns true if widget /w/ begins and ends completely within the range of this widget */
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bool contains ( const Sequence_Widget *w ) const
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{
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return w->start() >= start() && w->start() + w->length() <= start() + length();
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}
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/** returns true of widget /w/ overlaps this widget in any place */
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bool overlaps ( const Sequence_Widget *w ) const
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{
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return ! ( w->start() > start() + length() || w->start() + w->length() < start() );
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}
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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 ( ! _sequence )
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return;
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if ( ! (align() & FL_ALIGN_INSIDE) )
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{
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// FIXME: do better..
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_sequence->damage( FL_DAMAGE_USER1 );
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}
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else
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_sequence->damage( FL_DAMAGE_USER1, x(), y(), w(), h() );
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}
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virtual void draw_box ( void );
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virtual void draw ( void );
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virtual void draw_label ( void );
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virtual void draw_label ( const char *label, Fl_Align align, Fl_Color color=(Fl_Color)0, int xo=0, int yo=0 );
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bool
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operator< ( const Sequence_Widget & rhs ) const
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{
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return _r->start < rhs._r->start;
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}
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bool
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operator<=( const Sequence_Widget & rhs ) const
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{
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return _r->start <= rhs._r->start;
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}
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virtual int handle ( int m );
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static bool
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sort_func ( const Sequence_Widget *lhs, const 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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