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#include "m_pd.h"
#include "s_stuff.h"
#include "g_canvas.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 = "1.3";
t_int import_instance_count;
#define DEBUG(x)
//#define DEBUG(x) x
/*------------------------------------------------------------------------------
* CLASS DEF
*/
static t_class *import_class;
typedef struct _import
{
t_object x_obj;
t_canvas *x_canvas;
t_namelist *x_top;
t_namelist *x_current;
char x_classpath_root[MAXPDSTRING];
t_outlet *x_data_outlet;
t_outlet *x_status_outlet;
} t_import;
static int load_library(t_import *x, char *library_name)
{
DEBUG(post("load_library"););
if (!sys_load_lib(x->x_canvas, library_name)) return 0;
return 1;
}
static void load_arguments(t_import *x, int argc, t_atom *argv)
{
t_symbol *library_name;
while (argc--) {
switch (argv->a_type) {
case A_FLOAT:
post("[import] ERROR: floats not supported: %f",
atom_getfloat(argv));
break;
case A_SYMBOL:
library_name = atom_getsymbol(argv);
if (!load_library(x,library_name->s_name))
post("[import]: ERROR: can't load library in %s",
library_name->s_name);
else
post("[import] loaded library: %s",library_name->s_name);
break;
default:
post("[import] ERROR: Unsupported atom type");
}
argv++;
}
}
static void import_output(t_import* x)
{
DEBUG(post("import_output"););
char buffer[MAXPDSTRING];
/* TODO: think about using x->x_current->nl_next so that if [import] is at
* the end of its list, and another element gets added to the local
* namespace, [import] will output the new element on the next bang. */
if(x->x_current)
{
post("current string: %s", x->x_current->nl_string);
strncpy(buffer, x->x_current->nl_string, MAXPDSTRING);
post("current string buffer: %s", buffer);
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 import_reset(t_import* x)
{
/* on >= 0.40, this class uses the patch-local paths, on older versions
* before that existed, this class uses the global classpath */
#if (PD_MINOR_VERSION >= 40)
x->x_top = canvas_getenv(x->x_canvas)->ce_path;
#else
x->x_top = sys_searchpath;
#endif /* (PD_MINOR_VERSION >= 40) */
x->x_current = x->x_top;
}
static void *import_new(t_symbol *s, int argc, t_atom *argv)
{
t_import *x = (t_import *)pd_new(import_class);
t_symbol *currentdir;
if(import_instance_count == 0)
{
post("[import] %s",version);
post("\twritten by Hans-Christoph Steiner <hans@eds.org>");
post("\tcompiled on "__DATE__" at "__TIME__ " ");
post("\tcompiled against Pd version %d.%d.%d", PD_MAJOR_VERSION,
PD_MINOR_VERSION, PD_BUGFIX_VERSION);
}
import_instance_count++;
strncpy(x->x_classpath_root, sys_libdir->s_name, MAXPDSTRING - 7);
strcat(x->x_classpath_root, "/extra");
x->x_data_outlet = outlet_new(&x->x_obj, &s_symbol);
x->x_status_outlet = outlet_new(&x->x_obj, 0);
x->x_canvas = canvas_getcurrent();
load_arguments(x,argc,argv);
import_reset(x);
return (x);
}
static void import_free(t_import *x)
{
/* TODO: look into freeing the namelist. It probably does not need to
* happen, since this class is just copying the pointer of an existing
* namelist that is handled elsewhere. */
/* TODO: perhaps this should remove any libs that this instance had added to
* the namespace */
}
void import_setup(void)
{
import_class = class_new(gensym("import"), (t_newmethod)import_new,
(t_method)import_free,
sizeof(t_import),
CLASS_DEFAULT,
A_GIMME,
0);
/* add inlet atom methods */
class_addbang(import_class,(t_method) import_output);
/* add inlet selector methods */
class_addmethod(import_class,(t_method) import_reset,
gensym("reset"), 0);
}
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