static int
PyLibPlot_init(struct PyLibPlot* self, PyObject *args, PyObject *kwds)
{
int status=0;
PyObject *params_dict=NULL;
char *type=NULL;
char *filename=NULL;
plPlotterParams *params;
self->fptr=NULL;
if ( !PyArg_ParseTuple( args, "sOs", &type, ¶ms_dict, &filename) ) {
return -1;
}
// for the repr
snprintf(self->type, sizeof(self->type), "%s", type);
params = pl_newplparams();
if (!extract_params(params_dict, params)) {
// exception set inside
goto bail;
}
if (0 != strcmp(filename, "")) {
// a filename was passed
self->fptr = fopen(filename,"w");
if (self->fptr==NULL) {
fprintf(stderr,"error opening %s\n", filename);
PyErr_Format( PyExc_TypeError, "could not open file: %s", filename);
goto bail;
}
}
self->pl = pl_newpl_r( type, NULL, self->fptr, NULL, params );
if (!self->pl) {
PyErr_SetString(PyExc_RuntimeError, "could not create plotter");
goto bail;
}
status=1;
bail:
pl_deleteplparams( params );
if (!status) {
return -1;
} else {
return 0;
}
}
size_t
free_plparams (SCM x)
{
plPlotterParams *plparams;
assert (SCM_SMOB_PREDICATE (plparams_tag, x));
plparams = (plPlotterParams *) SCM_SMOB_DATA (x);
if (plparams != NULL)
{
pl_deleteplparams (plparams);
SCM_SET_SMOB_DATA (x, 0);
}
return 0;
}