From c2645dc4003b1391aba9b387a79a66cff1e63d3e Mon Sep 17 00:00:00 2001
From: Thomas Grill <xovo@users.sourceforge.net>
Date: Tue, 22 Oct 2002 23:16:30 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r189, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/; revision=190
---
 externals/grill/py/source/bound.cpp | 143 ++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 externals/grill/py/source/bound.cpp

(limited to 'externals/grill/py/source/bound.cpp')

diff --git a/externals/grill/py/source/bound.cpp b/externals/grill/py/source/bound.cpp
new file mode 100644
index 00000000..651bb52b
--- /dev/null
+++ b/externals/grill/py/source/bound.cpp
@@ -0,0 +1,143 @@
+/* 
+
+py/pyext - python external object for PD and MaxMSP
+
+Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
+For information on usage and redistribution, and for a DISCLAIMER OF ALL
+WARRANTIES, see the file, "license.txt," in this distribution.  
+
+*/
+
+#include "pyext.h"
+#include "flinternal.h"
+
+t_class *pyext::px_class;
+pyext::py_proxy *pyext::px_head,*pyext::px_tail;
+
+void pyext::py_proxy::px_method(py_proxy *obj,const t_symbol *s,int argc,t_atom *argv)
+{
+	PY_LOCK
+
+	PyObject *args = MakePyArgs(s,AtomList(argc,argv),-1,obj->self != NULL);
+	PyObject *ret = PyObject_CallObject(obj->func,args);
+	if(!ret) {
+		PyErr_Print();
+	}
+	Py_XDECREF(ret);
+
+	PY_UNLOCK
+}
+
+
+PyObject *pyext::pyext_bind(PyObject *,PyObject *args)
+{
+    PyObject *self,*meth;
+	C *name;
+    if(!PyArg_ParseTuple(args, "OsO:pyext_bind", &self,&name,&meth))
+		post("py/pyext - Wrong arguments!");
+	else if(!PyInstance_Check(self) || !(PyMethod_Check(meth) || PyFunction_Check(meth))) {
+		post("py/pyext - Wrong argument types!");
+    }
+	else {
+		t_symbol *recv = gensym(name);
+/*
+		if(GetBound(recv))
+			post("py/pyext - Symbol \"%s\" is already hooked",GetString(recv));
+*/		
+		// make a proxy object
+		py_proxy *px = (py_proxy *)object_new(px_class);
+		if(PyMethod_Check(meth)) {
+			PyObject *no = PyObject_GetAttrString(meth,"__name__");
+			meth  = PyObject_GetAttr(self,no); 
+			Py_DECREF(no);
+		}
+		px->init(recv,self,meth);  
+
+		// add it to the list
+		if(px_tail) px_tail->nxt = px;
+		else px_head = px;
+		px_tail = px;
+
+		// Do bind
+		pd_bind(&px->obj.ob_pd,recv);  
+
+		Py_INCREF(self); // self is borrowed reference
+	}
+
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
+PyObject *pyext::pyext_unbind(PyObject *,PyObject *args)
+{
+    PyObject *self,*meth;
+	C *name;
+    if(!PyArg_ParseTuple(args, "OsO:pyext_bind", &self,&name,&meth))
+		post("py/pyext - Wrong arguments!");
+	else if(!PyInstance_Check(self) || !(PyMethod_Check(meth) || PyFunction_Check(meth))) {
+		post("py/pyext - Wrong argument types!");
+    }
+	else {
+		t_symbol *recv = gensym(name);
+		if(PyMethod_Check(meth)) {
+			PyObject *no = PyObject_GetAttrString(meth,"__name__");
+			meth  = PyObject_GetAttr(self,no); // meth is given a new reference!
+			Py_DECREF(no);
+		}
+
+		// search proxy object
+		py_proxy *pp = NULL,*px = px_head;
+		while(px) {
+			py_proxy *pn = px->nxt;
+			if(recv == px->name && self == px->self && meth == px->func) {
+				if(pp)
+					pp->nxt = pn;
+				else
+					px_head = pn;
+				if(!pn) px_tail = pp;
+				break;
+			}
+			else pp = px;
+			px = pn;
+		}
+
+		// do unbind
+		if(px) {
+			pd_unbind(&px->obj.ob_pd,recv);  
+			object_free(px->obj);
+
+			Py_DECREF(self);
+			if(PyMethod_Check(meth)) Py_DECREF(meth);
+		}
+	}
+
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
+
+V pyext::ClearBinding()
+{
+	// search proxy object
+	py_proxy *pp = NULL,*px = px_head;
+	while(px) {
+		py_proxy *pn = px->nxt;
+		if(px->self == pyobj) {
+			if(pp)
+				pp->nxt = pn;
+			else
+				px_head = pn;
+			if(!pn) px_tail = pp;
+
+			Py_DECREF(px->self);
+			if(PyMethod_Check(px->func)) Py_DECREF(px->func);
+
+			pd_unbind(&px->obj.ob_pd,px->name);  
+			object_free(px->obj);
+		}
+		else pp = px;	
+		px = pn;
+	}
+}
+
+
-- 
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