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/* Copyright (c) 2002-2004 krzYszcz and others.
* 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"
#include "common/loud.h"
#include "hammer/tree.h"
/* As a class `derived' from the common hammertree code (also in funbuff),
offer maintains the auxiliary list, the main purpose of which is faster
traversal (not needed here). As a side-effect, there is a bonus of a small
speedup of deletion, and a penalty of a small slowdown of insertion. */
typedef struct _offer
{
t_object x_ob;
t_float x_value;
int x_valueset;
t_hammertree x_tree;
} t_offer;
static t_class *offer_class;
static void offer_float(t_offer *x, t_float f)
{
int ndx;
if (loud_checkint((t_pd *)x, f, &ndx, &s_float)) /* CHECKED */
{
t_hammernode *np;
if (x->x_valueset)
{
hammertree_insertfloat(&x->x_tree, ndx, x->x_value, 1);
x->x_valueset = 0;
}
else if (np = hammertree_search(&x->x_tree, ndx))
{
outlet_float(((t_object *)x)->ob_outlet, HAMMERNODE_GETFLOAT(np));
hammertree_delete(&x->x_tree, np);
}
}
}
static void offer_ft1(t_offer *x, t_floatarg f)
{
/* this is incompatible -- CHECKED float is silently truncated */
x->x_value = f;
x->x_valueset = 1;
}
static void offer_clear(t_offer *x)
{
hammertree_clear(&x->x_tree, 0);
/* CHECKED valueset is not cleared */
}
#ifdef HAMMERTREE_DEBUG
static void offer_debug(t_offer *x, t_floatarg f)
{
hammertree_debug(&x->x_tree, (int)f, 0);
}
#endif
static void offer_free(t_offer *x)
{
hammertree_clear(&x->x_tree, 0);
}
static void *offer_new(void)
{
t_offer *x = (t_offer *)pd_new(offer_class);
x->x_valueset = 0;
hammertree_inittyped(&x->x_tree, HAMMERTYPE_FLOAT, 0);
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft1"));
outlet_new((t_object *)x, &s_float);
return (x);
}
void offer_setup(void)
{
offer_class = class_new(gensym("offer"),
(t_newmethod)offer_new,
(t_method)offer_free,
sizeof(t_offer), 0, 0);
class_addfloat(offer_class, offer_float);
class_addmethod(offer_class, (t_method)offer_ft1,
gensym("ft1"), A_FLOAT, 0);
class_addmethod(offer_class, (t_method)offer_clear,
gensym("clear"), 0);
#ifdef HAMMERTREE_DEBUG
class_addmethod(offer_class, (t_method)offer_debug,
gensym("debug"), A_DEFFLOAT, 0);
#endif
}
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