298 lines
9.1 KiB
C++
298 lines
9.1 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 "Track.H"
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#include "Loggable.H"
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#include <algorithm>
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using namespace std;
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/* Base class for virtual widget on a track */
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class Track_Widget : public Loggable
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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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virtual ~Track_Widget ( )
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{
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redraw();
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_track->remove( this );
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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 ? _track->x() - 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( _offset ); }
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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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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 ( int X, int Y, int W, int H )
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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 ( 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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/* dump ( void ) */
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/* { */
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/* printf( "Unknown %p %lu %lu %lu\n", this, _offset, _start, _end ); */
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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_Label lab;
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lab.color = 0;
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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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if ( abs_x() < scroll_x() )
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dx = min( 32767, scroll_x() - abs_x() );
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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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static bool dragging = false;
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int X = Fl::event_x();
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int Y = Fl::event_y();
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Logger _log( this );
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switch ( m )
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{
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case FL_ENTER:
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fl_cursor( FL_CURSOR_HAND );
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return 1;
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case FL_LEAVE:
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fl_cursor( FL_CURSOR_DEFAULT );
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return 1;
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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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if ( Fl::event_state() & FL_CTRL &&
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Fl::event_button() == 3 )
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{
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// log_destroy();
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redraw();
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_track->queue_delete( this );
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return 0;
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}
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return 1;
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}
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case FL_RELEASE:
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if ( dragging )
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_log.release();
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dragging = false;
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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 ( ! dragging )
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{
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dragging = true;
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_log.hold();
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}
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redraw();
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if ( timeline->ts_to_x( timeline->xoffset ) + ox + X > _track->x() )
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{
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int nx = (ox + X) - _track->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->position( timeline->ts_to_x( pos ) );
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_track->redraw();
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// timeline->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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