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/*
* This object allows you to see what is currently in the canvas-local path.
*/
#include "m_pd.h"
#include "s_stuff.h"
#include "g_canvas.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* WARNING: KLUDGE! */
/*
* this struct is not publically defined (its in g_canvas.c) so I need to
* include this here. Its from Pd 0.41-test03 2006-11-19. */
struct _canvasenvironment
{
t_symbol *ce_dir; /* directory patch lives in */
int ce_argc; /* number of "$" arguments */
t_atom *ce_argv; /* array of "$" arguments */
int ce_dollarzero; /* value of "$0" */
t_namelist *ce_path; /* search path */
};
//static char *version = "$Revision: 1.2 $";
#define DEBUG(x)
//#define DEBUG(x) x
/*------------------------------------------------------------------------------
* CLASS DEF
*/
t_class *ce_path_class;
typedef struct _ce_path
{
t_object x_obj;
t_canvasenvironment *x_canvasenvironment;
t_namelist *x_current;
t_outlet *x_data_outlet;
t_outlet *x_status_outlet;
} t_ce_path;
static void ce_path_output(t_ce_path* x)
{
DEBUG(post("ce_path_output"););
char buffer[FILENAME_MAX];
/* TODO: think about using x->x_current->nl_next so that if [ce_path] is at
* the end of its list, and another element gets added to the local
* namespace, [ce_path] will output the new element on the next bang. */
if(x->x_current)
{
strncpy(buffer, x->x_current->nl_string, FILENAME_MAX);
outlet_symbol( x->x_data_outlet, gensym(buffer));
x->x_current = x->x_current->nl_next;
}
else
outlet_bang(x->x_status_outlet);
}
static void ce_path_rewind(t_ce_path* x)
{
x->x_current = x->x_canvasenvironment->ce_path;
}
static void *ce_path_new(void)
{
t_ce_path *x = (t_ce_path *)pd_new(ce_path_class);
x->x_data_outlet = outlet_new(&x->x_obj, &s_symbol);
x->x_status_outlet = outlet_new(&x->x_obj, 0);
x->x_canvasenvironment = canvas_getenv(canvas_getcurrent());
ce_path_rewind(x);
return (x);
}
void ce_path_setup(void)
{
ce_path_class = class_new(gensym("ce_path"), (t_newmethod)ce_path_new,
NULL,
sizeof(t_ce_path),
CLASS_DEFAULT,
0,
0);
/* add inlet atom methods */
class_addbang(ce_path_class, (t_method) ce_path_output);
/* add inlet selector methods */
class_addmethod(ce_path_class, (t_method) ce_path_rewind,
gensym("rewind"), 0);
}
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