116 lines
3.4 KiB
C++
116 lines
3.4 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. */
|
|
/*******************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include <FL/Fl_Valuator.H> // for FL_HORIZONTAL and FL_VERTICAL
|
|
|
|
#include "Meter.H"
|
|
#include "dsp.h"
|
|
|
|
class DPM : public Meter
|
|
{
|
|
char peak_string[10];
|
|
|
|
int _segments;
|
|
int _pixels_per_segment;
|
|
int _last_drawn_hi_segment;
|
|
|
|
Value_Smoothing_Filter smoothing;
|
|
|
|
float _value;
|
|
|
|
int pos ( float v )
|
|
{
|
|
float pv = deflection( v ) * ( _segments - 1 );
|
|
|
|
return pv;
|
|
}
|
|
|
|
static float _dim;
|
|
static Fl_Color _gradient[];
|
|
static Fl_Color _dim_gradient[];
|
|
|
|
Fl_Color
|
|
div_color ( int i )
|
|
{
|
|
return _gradient[ i * 127 / _segments ];
|
|
}
|
|
|
|
Fl_Color
|
|
dim_div_color ( int i )
|
|
{
|
|
return _dim_gradient[ i * 127 / _segments ];
|
|
}
|
|
|
|
|
|
protected:
|
|
|
|
virtual void draw_label ( void );
|
|
virtual void draw ( void );
|
|
virtual void resize ( int, int, int, int );
|
|
|
|
void bbox ( int &X, int &Y, int &W, int &H );
|
|
|
|
public:
|
|
|
|
DPM ( int X, int Y, int W, int H, const char *L = 0 );
|
|
|
|
void value ( float v )
|
|
{
|
|
sample_t buf[100];
|
|
|
|
if ( smoothing.apply( buf, 1, v ) )
|
|
v = buf[0];
|
|
|
|
if ( _value != v )
|
|
{
|
|
if ( pos( v ) != pos( _value ) )
|
|
Meter::value( v );
|
|
}
|
|
|
|
_value = v;
|
|
}
|
|
|
|
float value ( void ) const
|
|
{
|
|
return _value;
|
|
}
|
|
|
|
void pixels_per_segment ( int v ) { _pixels_per_segment = v; }
|
|
|
|
float dim ( void ) const { return _dim; }
|
|
void dim ( float v ) { _dim = v; if ( visible_r() ) redraw(); }
|
|
|
|
static
|
|
void
|
|
blend ( int nbreaks, int* b, Fl_Color *c, Fl_Color bc )
|
|
{
|
|
for ( int i = 0; i < nbreaks - 1; i++ )
|
|
{
|
|
int k = 0;
|
|
for ( int j = b[i]; j <= b[i+1]; j++, k++ )
|
|
_gradient[ j ] = fl_color_average( c[i+1], c[i], ( k ) / (float)(b[i+1] - b[i] ));
|
|
}
|
|
|
|
for ( int i = 0; i < 128; i++ )
|
|
_dim_gradient[ i ] = fl_color_average( FL_BLACK, _gradient[ i ], _dim );
|
|
}
|
|
};
|