/**
* gts_segment_is_ok:
* @s: a #GtsSegment.
*
* Returns: %TRUE if @s is not degenerate (i.e. @s->v1 != @s->v2) and not
* duplicate, %FALSE otherwise.
*/
gboolean gts_segment_is_ok (GtsSegment * s)
{
g_return_val_if_fail (s != NULL, FALSE);
g_return_val_if_fail (s->v1 != s->v2, FALSE);
g_return_val_if_fail (!gts_segment_is_duplicate (s), FALSE);
g_return_val_if_fail (GTS_OBJECT (s)->reserved == NULL, FALSE);
return TRUE;
}
static PyObject *
new_(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
PyObject *o;
PygtsObject *obj;
GtsSegment *tmp;
GtsObject *segment=NULL;
PyObject *v1_=NULL,*v2_=NULL;
PygtsVertex *v1,*v2;
guint alloc_gtsobj = TRUE;
guint N;
/* Parse the args */
if(kwds) {
o = PyDict_GetItemString(kwds,"alloc_gtsobj");
if(o==Py_False) {
alloc_gtsobj = FALSE;
}
if(o!=NULL) {
PyDict_DelItemString(kwds, "alloc_gtsobj");
}
}
if(kwds) {
Py_INCREF(Py_False);
PyDict_SetItemString(kwds,"alloc_gtsobj", Py_False);
}
/* Allocate the gtsobj (if needed) */
if( alloc_gtsobj ) {
/* Parse the args */
if( (N = PyTuple_Size(args)) < 2 ) {
PyErr_SetString(PyExc_TypeError,"expected two Vertices");
return NULL;
}
v1_ = PyTuple_GET_ITEM(args,0);
v2_ = PyTuple_GET_ITEM(args,1);
/* Convert to PygtsObjects */
if(!pygts_vertex_check(v1_)) {
PyErr_SetString(PyExc_TypeError,"expected two Vertices");
return NULL;
}
if(!pygts_vertex_check(v2_)) {
PyErr_SetString(PyExc_TypeError,"expected two Vertices");
return NULL;
}
v1 = PYGTS_VERTEX(v1_);
v2 = PYGTS_VERTEX(v2_);
/* Error check */
if(PYGTS_OBJECT(v1)->gtsobj == PYGTS_OBJECT(v2)->gtsobj) {
PyErr_SetString(PyExc_ValueError,"Vertices are identical");
return NULL;
}
/* Create the GtsSegment */
segment = GTS_OBJECT(gts_segment_new(gts_segment_class(),
GTS_VERTEX(v1->gtsobj),
GTS_VERTEX(v2->gtsobj)));
if( segment == NULL ) {
PyErr_SetString(PyExc_MemoryError, "could not create Segment");
return NULL;
}
/* Check for duplicate */
tmp = gts_segment_is_duplicate(GTS_SEGMENT(segment));
if( tmp != NULL ) {
gts_object_destroy(segment);
segment = GTS_OBJECT(tmp);
}
/* If corresponding PyObject found in object table, we are done */
if( (obj=(PygtsObject*)g_hash_table_lookup(obj_table,segment)) != NULL ) {
Py_INCREF(obj);
return (PyObject*)obj;
}
}
/* Chain up */
obj = PYGTS_OBJECT(PygtsObjectType.tp_new(type,args,kwds));
if( alloc_gtsobj ) {
obj->gtsobj = segment;
pygts_object_register(PYGTS_OBJECT(obj));
}
return (PyObject*)obj;
}