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/* ---------------------------- allow --------------------------------------- */
/* */
/* Lets only floats/symbols through that are allowed to do so. */
/* Written by Olaf Matthes <olaf.matthes@gmx.de> */
/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */
/* */
/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* */
/* Based on PureData by Miller Puckette and others. */
/* */
/* ---------------------------------------------------------------------------- */
#include "m_pd.h"
#include <string.h>
static char *version = "allow v0.1, written by Olaf Matthes <olaf.matthes@gmx.de>";
typedef struct allow
{
t_object x_obj;
t_outlet *x_out;
t_atom *x_elem; // list of elemets that are allowed to pass
t_int x_numelem; // the number of elemetns in our allow-list
} t_allow;
/* we got a symbol... */
static void allow_symbol(t_allow *x, t_symbol *s)
{
int i;
for(i = 0; i < x->x_numelem; i++)
{
if(x->x_elem[i].a_type == A_SYMBOL) // compare with all symbols in our list
if(atom_getsymbolarg(i, x->x_numelem, x->x_elem) == s)
{
outlet_symbol(x->x_out, s);
return;
}
}
}
/* we got a float... */
static void allow_float(t_allow *x, t_floatarg f)
{
int i;
for(i = 0; i < x->x_numelem; i++)
{
if(x->x_elem[i].a_type == A_FLOAT) // compare with all floats in our list
if(atom_getfloatarg(i, x->x_numelem, x->x_elem) == f)
{
outlet_float(x->x_out, f);
return;
}
}
}
static t_class *allow_class;
static void allow_free(t_allow *x)
{
freebytes(x->x_elem, x->x_numelem*sizeof(t_atom));
}
static void *allow_new(t_symbol *s, int argc, t_atom *argv)
{
t_allow *x = (t_allow *)pd_new(allow_class);
x->x_numelem = argc; // get the number of elements
x->x_elem = getbytes(argc*sizeof(t_atom));
memcpy(x->x_elem, argv, argc*sizeof(t_atom));
x->x_out = outlet_new(&x->x_obj, gensym("anything"));
// post("allow: got %d elements", x->x_numelem);
return (x);
}
#ifndef MAXLIB
void allow_setup(void)
{
/* the object's class: */
allow_class = class_new(gensym("allow"), (t_newmethod)allow_new,
(t_method)allow_free, sizeof(t_allow), 0, A_GIMME, 0);
#else
void maxlib_allow_setup(void)
{
/* the object's class: */
allow_class = class_new(gensym("maxlib_allow"), (t_newmethod)allow_new,
(t_method)allow_free, sizeof(t_allow), 0, A_GIMME, 0);
class_addcreator((t_newmethod)allow_new, gensym("allow"), A_GIMME, 0);
#endif
class_addsymbol(allow_class, allow_symbol);
class_addfloat(allow_class, allow_float);
#ifndef MAXLIB
post(version);
#else
class_sethelpsymbol(allow_class, gensym("maxlib/allow-help.pd"));
#endif
}
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