351 lines
9.8 KiB
C++
351 lines
9.8 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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#pragma once
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// class Track;
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// #include "Waveform.H"
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#include "Clip.H"
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#include "Track.H"
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#include "Timeline.H"
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#include <algorithm>
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using namespace std;
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/* Regions are "virtual" FLTK widgets; this is necessary because the
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* dimensions of real FLTK widgets are limited to 16-bits, which is
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* far too little for our purposes */
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/* Base class for virtual widget on a track */
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class Track_Widget
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{
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protected:
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Track *_track; /* track this region belongs to */
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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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bool _selected;
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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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public:
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Track_Widget ( )
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{
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_track = NULL;
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_offset = _start = _end = 0;
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_selected = false;
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}
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Fl_Group * 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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int y ( void ) const { return _track->y(); }
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int h ( void ) const { return _track->h(); }
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int x ( void ) const { return _offset < timeline.xoffset ? -1 : min( 32767, _track->x() + timeline.ts_to_x( _offset - timeline.xoffset ) ); }
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virtual int w ( void ) const
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{
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int tx = timeline.ts_to_x( _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( timeline.xoffset ); }
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virtual int abs_w ( void ) const { return timeline.ts_to_x( _end - _start ); }
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Fl_Color color ( void ) { return _color; }
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Fl_Color box_color ( void ) { return _box_color; }
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Track * track ( void ) const { return _track; }
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void track ( Track *t ) { _track = t; }
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nframes_t offset ( void ) const { return _offset; }
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void offset ( nframes_t o ) { _offset = o; }
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void end ( nframes_t v ) { _end = v; }
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nframes_t end ( void ) const { return _end; }
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void start ( nframes_t v ) { _start = v; }
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nframes_t start ( void ) const { return _start; }
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virtual nframes_t length ( void ) const { return _end - _start; }
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virtual Fl_Boxtype box ( void ) const { return FL_UP_BOX; }
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/* just draw a simple box */
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virtual void
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draw_box ( int X, int Y, int W, int H )
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{
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fl_draw_box( box(), x(), y(), w(), y(), _box_color );
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}
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virtual void
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draw ( int X, int Y, int W, int H )
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{
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draw_box( X, Y, W, H );
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}
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virtual void
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draw_label ( const char *label, Fl_Align align )
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{
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int X, Y;
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X = x();
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Y = y();
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/* FIXME: why do we have to to this here? why doesn't Fl_Lable::draw take care of this stuff? */
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if ( ! (align & FL_ALIGN_INSIDE) )
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{
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if ( align & FL_ALIGN_RIGHT )
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{
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X += w();
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align = (Fl_Align)((align & ~FL_ALIGN_RIGHT) | FL_ALIGN_LEFT);
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}
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if ( align & FL_ALIGN_BOTTOM )
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{
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Y += h();
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align = (Fl_Align)((align & ~FL_ALIGN_BOTTOM) | FL_ALIGN_TOP);
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}
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}
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/* fl_font( FL_HELVETICA, 14 ); */
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/* fl_color( FL_BLACK ); */
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/* fl_draw( label, X + 2, Y + 2, w(), h(), align ); */
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/* fl_color( FL_WHITE ); */
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/* fl_draw( label, X, Y, w(), h(), align ); */
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/* for some reasone FL_SHADOW_LABLE doesn't always use
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* black for the shadow color...so we can't rely on it. */
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Fl_Label lab;
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lab.color = FL_WHITE;
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lab.type = FL_SHADOW_LABEL;
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lab.value = label;
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lab.font = FL_HELVETICA;
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lab.size = 14;
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int W = w();
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int H = h();
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if ( align & FL_ALIGN_INSIDE )
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{
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X += Fl::box_dx( box() );
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Y += Fl::box_dy( box() );
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W -= Fl::box_dw( box() );
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H -= Fl::box_dh( box() );
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}
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if ( align & FL_ALIGN_CLIP ) fl_push_clip( X, Y, W, H );
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int dx = 0;
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int tx = timeline.ts_to_x( _offset );
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if ( tx < scroll_x() )
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dx = min( 32767, scroll_x() - tx );
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lab.draw( X - dx, Y, W, H, align );
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if ( align & FL_ALIGN_CLIP ) fl_pop_clip();
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}
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/* base hanlde just does basic dragging */
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virtual int
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handle ( int m )
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{
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static int ox, oy;
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int X = Fl::event_x();
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int Y = Fl::event_y();
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switch ( m )
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{
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case FL_PUSH:
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{
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ox = x() - X;
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oy = y() - Y;
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return 1;
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}
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case FL_RELEASE:
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fl_cursor( FL_CURSOR_DEFAULT );
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return 1;
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case FL_DRAG:
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{
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if ( ox + X >= _track->x() )
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{
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int nx = ox + X;
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_offset = timeline.x_to_ts( nx ) + timeline.xoffset;
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_track->snap( this );
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}
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_track->redraw();
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fl_cursor( FL_CURSOR_MOVE );
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if ( X >= _track->x() + _track->w() ||
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X <= _track->x() )
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{
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/* this drag needs to scroll */
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nframes_t pos = timeline.xoffset;
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nframes_t d = timeline.x_to_ts( 100 );
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if ( X <= _track->x() )
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{
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if ( pos > d )
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pos -= d;
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else
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pos = 0;
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}
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else
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pos += d;
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timeline.xoffset = pos;
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timeline.tracks->redraw();
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}
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return 1;
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}
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default:
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return 0;
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}
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}
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bool
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operator< ( const Track_Widget & rhs )
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{
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return _offset < rhs._offset;
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}
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};
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class Track_Point : public Track_Widget
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{
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protected:
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char *_label;
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public:
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int abs_w ( void ) const { return 10; }
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nframes_t length ( void ) const { return timeline.x_to_ts( abs_w() ); }
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Track_Point ( )
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{
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_label = NULL;
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}
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void
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draw ( int X, int Y, int W, int H )
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{
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Track_Widget::draw( x(), Y, w(), H );
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draw_label( _label, FL_ALIGN_RIGHT );
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}
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};
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class Tempo_Point : public Track_Point
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{
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float _tempo;
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void
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_make_label ( void )
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{
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if ( ! _label )
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_label = new char[40];
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snprintf( _label, 40, "%.1f", _tempo );
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}
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public:
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Tempo_Point ( nframes_t when, float bpm )
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{
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_tempo = bpm;
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_offset = when;
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_make_label();
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}
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~Tempo_Point ( )
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{ if ( _label ) delete[] _label; }
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};
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class Region : public Track_Widget
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{
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Clip *_clip; /* clip this region represents */
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float _scale; /* amplitude adjustment */
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static Fl_Boxtype _box;
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static Fl_Color _selection_color;
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static Fl_Color selection_color ( void ) { return _selection_color; }
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static void selection_color ( Fl_Color v ) { _selection_color = v; }
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enum trim_e { NO, LEFT, RIGHT };
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void trim ( enum trim_e t, int X );
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void init ( void );
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public:
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Fl_Boxtype box ( void ) const { return Region::_box; }
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Region ( const Region & rhs );
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Region ( Clip *c );
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int handle ( int m );
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void draw_box( int X, int Y, int W, int H );
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void draw ( int X, int Y, int W, int H );
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void resize ( void );
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void normalize ( void );
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};
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