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/******************************************************
*
* zexy - implementation file
*
* copyleft (c) IOhannes m zmölnig
*
* 1999:forum::für::umläute:2004
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2
*
******************************************************/
/* 3108:forum::für::umläute:2000 */
/* ------------------------- packel ------------------------------- */
/*
get the nth element of a package
*/
#include "zexy.h"
#include <string.h>
// do we need memory.h ?
#include <memory.h>
static t_class *packel_class;
typedef struct _packel
{
t_object x_obj;
t_float position;
} t_packel;
static void packel_list(t_packel *x, t_symbol *s, int argc, t_atom *argv)
{
int mypos = x->position;
if (mypos) {
t_atom *current;
int pos = (mypos < 0)?(argc+mypos):(mypos-1);
if(argc==0){
if (pos==0||pos==-1)outlet_bang(x->x_obj.ob_outlet);
return;
}
if (pos < 0 || pos >= argc)return;
current = &(argv[pos]);
switch (current->a_type) {
case A_FLOAT:
outlet_float(x->x_obj.ob_outlet, atom_getfloat(current));
break;
case A_SYMBOL:
outlet_symbol(x->x_obj.ob_outlet, atom_getsymbol(current));
break;
case A_POINTER:
outlet_pointer(x->x_obj.ob_outlet, current->a_w.w_gpointer);
break;
case A_NULL:
outlet_bang(x->x_obj.ob_outlet);
default:
;
}
} else outlet_list(x->x_obj.ob_outlet, s, argc, argv);
}
static void packel_anything(t_packel *x, t_symbol *s, int argc, t_atom *argv)
{
t_atom *av2 = (t_atom *)getbytes((argc + 1) * sizeof(t_atom));
int i;
for (i = 0; i < argc; i++)
av2[i + 1] = argv[i];
SETSYMBOL(av2, s);
packel_list(x, gensym("list"), argc+1, av2);
freebytes(av2, (argc + 1) * sizeof(t_atom));
}
static void *packel_new(t_floatarg f)
{
t_packel *x = (t_packel *)pd_new(packel_class);
outlet_new(&x->x_obj, 0);
floatinlet_new(&x->x_obj, &x->position);
x->position = (int) f;
return (x);
}
void packel_setup(void)
{
packel_class = class_new(gensym("packel"), (t_newmethod)packel_new,
0, sizeof(t_packel), 0, A_DEFFLOAT, 0);
class_addlist (packel_class, packel_list);
class_addanything(packel_class, packel_anything);
class_sethelpsymbol(packel_class, gensym("zexy/packel"));
zexy_register("packel");
}
void z_packel_setup(void)
{
packel_setup();
}
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