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/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
#include "m_pd.h"
#ifdef HAVE_G_CANVAS_H
# include "g_canvas.h"
#else
EXTERN t_canvas *glist_getcanvas(t_glist *x);
#endif
#include "iemlib.h"
/* ------------------------- dollarg ---------------------------- */
/* --- dollar-arguments, output the initial-arguments and the --- */
/* ------- number of them of the parent abstraction-patch ------- */
static t_class *dollarg_class;
typedef struct _dollarg
{
t_object x_obj;
void *x_outlet_ac;
t_atom *x_at;
int x_ac;
} t_dollarg;
static void dollarg_float(t_dollarg *x, t_floatarg f)
{
int i = (int)f;
if(!i)
{
outlet_float(x->x_outlet_ac, x->x_ac);
if(x->x_ac)
outlet_list(x->x_obj.ob_outlet, &s_list, x->x_ac, x->x_at);
}
else if(i > 0)
{
if(i <= x->x_ac)
{
outlet_float(x->x_outlet_ac, i);
if(IS_A_FLOAT(x->x_at, i-1))
outlet_float(x->x_obj.ob_outlet, atom_getfloatarg(i-1, x->x_ac, x->x_at));
else if(IS_A_SYMBOL(x->x_at, i-1))
outlet_symbol(x->x_obj.ob_outlet, atom_getsymbolarg(i-1, x->x_ac, x->x_at));
}
else
outlet_float(x->x_outlet_ac, 0);
}
else
{
int j = x->x_ac + i;
if(j >= 0)
{
outlet_float(x->x_outlet_ac, j+1);
if(IS_A_FLOAT(x->x_at, j))
outlet_float(x->x_obj.ob_outlet, atom_getfloatarg(j, x->x_ac, x->x_at));
else if(IS_A_SYMBOL(x->x_at, j))
outlet_symbol(x->x_obj.ob_outlet, atom_getsymbolarg(j, x->x_ac, x->x_at));
}
else
outlet_float(x->x_outlet_ac, 0);
}
}
static void dollarg_bang(t_dollarg *x)
{
dollarg_float(x, 0.0f);
}
static void dollarg_free(t_dollarg *x)
{
if(x->x_ac)
freebytes(x->x_at, x->x_ac * sizeof(t_atom));
}
static void *dollarg_new(void)
{
t_dollarg *x = (t_dollarg *)pd_new(dollarg_class);
t_glist *glist=(t_glist *)canvas_getcurrent();
t_canvas *canvas=glist_getcanvas(glist);
int pargc;
t_atom *pargv, *at;
canvas_setcurrent(canvas);
canvas_getargs(&pargc, &pargv);
canvas_unsetcurrent(canvas);
x->x_at = (t_atom *)getbytes(pargc*sizeof(t_atom));
x->x_ac = pargc;
at = x->x_at;
while(pargc--)
*at++ = *pargv++;
outlet_new(&x->x_obj, &s_list);
x->x_outlet_ac = outlet_new(&x->x_obj, &s_float);
return (x);
}
void dollarg_setup(void)
{
dollarg_class = class_new(gensym("dollarg"), (t_newmethod)dollarg_new,
(t_method)dollarg_free, sizeof(t_dollarg), 0, 0);
class_addcreator((t_newmethod)dollarg_new, gensym("$n"), 0);
class_addbang(dollarg_class, (t_method)dollarg_bang);
class_addfloat(dollarg_class, (t_method)dollarg_float);
// class_sethelpsymbol(dollarg_class, gensym("iemhelp/help-dollarg"));
}
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