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// ----------------------------------------------------------------------
//
// Copyright (C) 2010 Fons Adriaensen <fons@linuxaudio.org>
//
// 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; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// ----------------------------------------------------------------------
#include <math.h>
#include "guiclass.h"
int Pbutt0::handle_press (void)
{
_state |= 2;
return PRESS;
}
int Pbutt0::handle_relse (void)
{
_state &= ~2;
return NOP;
}
int Pbutt1::handle_press (void)
{
_state ^= 1;
return PRESS;
}
int Pbutt1::handle_relse (void)
{
return NOP;
}
Rlinctl::Rlinctl (X_window *parent,
X_callback *cbobj,
RotaryImg *image,
int xp,
int yp,
int cm,
int dd,
double vmin,
double vmax,
double vini,
int cbind) :
RotaryCtl (parent, cbobj, image, xp, yp, cbind),
_cm (cm),
_dd (dd),
_vmin (vmin),
_vmax (vmax),
_form (0)
{
_count = -1;
set_value (vini);
}
void Rlinctl::get_string (char *p, int n)
{
if (_form) snprintf (p, n, _form, _value);
else *p = 0;
}
void Rlinctl::set_value (double v)
{
set_count ((int) floor (_cm * (v - _vmin) / (_vmax - _vmin) + 0.5));
render ();
}
int Rlinctl::handle_button (void)
{
return PRESS;
}
int Rlinctl::handle_motion (int dx, int dy)
{
return set_count (_rcount + dx - dy);
}
int Rlinctl::handle_mwheel (int dw)
{
if (! (_keymod & ShiftMask)) dw *= _dd;
return set_count (_count + dw);
}
int Rlinctl::set_count (int u)
{
if (u < 0) u= 0;
if (u > _cm) u = _cm;
if (u != _count)
{
_count = u;
_value = _vmin + u * (_vmax - _vmin) / _cm;
_angle = 270.0 * ((double) u / _cm - 0.5);
return DELTA;
}
return 0;
}
Rlogctl::Rlogctl (X_window *parent,
X_callback *cbobj,
RotaryImg *image,
int xp,
int yp,
int cm,
int dd,
double vmin,
double vmax,
double vini,
int cbind) :
RotaryCtl (parent, cbobj, image, xp, yp, cbind),
_cm (cm),
_dd (dd),
_form (0)
{
_count = -1;
_vmin = log (vmin);
_vmax = log (vmax);
set_value (vini);
}
void Rlogctl::get_string (char *p, int n)
{
if (_form) snprintf (p, n, _form, _value);
else *p = 0;
}
void Rlogctl::set_value (double v)
{
set_count ((int) floor (_cm * (log (v) - _vmin) / (_vmax - _vmin) + 0.5));
render ();
}
int Rlogctl::handle_button (void)
{
return PRESS;
}
int Rlogctl::handle_motion (int dx, int dy)
{
return set_count (_rcount + dx - dy);
}
int Rlogctl::handle_mwheel (int dw)
{
if (! (_keymod & ShiftMask)) dw *= _dd;
return set_count (_count + dw);
}
int Rlogctl::set_count (int u)
{
if (u < 0) u= 0;
if (u > _cm) u = _cm;
if (u != _count)
{
_count = u;
_value = exp (_vmin + u * (_vmax - _vmin) / _cm);
_angle = 270.0 * ((double) u / _cm - 0.5);
return DELTA;
}
return 0;
}
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