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/* extended (settable) value object
Copyright (c) 2004 Tim Blechmann
a huge part of the code is broken out of the code of the value object.
* Copyright (c) 1997-1999 Miller Puckette.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
#include "m_pd.h"
/* -------------------- xvalue ----------------------------- */
static t_class *xvalue_class;
static t_class *vcommon_class;
typedef struct vcommon
{
t_pd c_pd;
int c_refcount;
t_float c_f;
} t_vcommon;
typedef struct _xvalue
{
t_object x_obj;
t_symbol *x_sym;
t_float *x_floatstar;
} t_xvalue;
static void *xvalue_new(t_symbol *s)
{
t_xvalue *x = (t_xvalue *)pd_new(xvalue_class);
x->x_sym = s;
x->x_floatstar = value_get(s);
outlet_new(&x->x_obj, &s_float);
return (x);
}
static void xvalue_bang(t_xvalue *x)
{
outlet_float(x->x_obj.ob_outlet, *x->x_floatstar);
}
static void xvalue_float(t_xvalue *x, t_float f)
{
*x->x_floatstar = f;
}
static void xvalue_ff(t_xvalue *x)
{
value_release(x->x_sym);
}
static void xvalue_set(t_xvalue *x, t_symbol *s)
{
x->x_sym = s;
x->x_floatstar = value_get(s);
}
void xvalue_setup(void)
{
xvalue_class = class_new(gensym("xvalue"), (t_newmethod)xvalue_new,
(t_method)xvalue_ff,
sizeof(t_xvalue), 0, A_DEFSYM, 0);
class_addcreator((t_newmethod)xvalue_new, gensym("xv"), A_DEFSYM, 0);
class_addbang(xvalue_class, xvalue_bang);
class_addfloat(xvalue_class, xvalue_float);
class_addmethod(xvalue_class, (t_method) xvalue_set, gensym("set"),
A_SYMBOL, 0);
vcommon_class = class_new(gensym("xvalue"), 0, 0,
sizeof(t_vcommon), CLASS_PD, 0);
}
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