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/pyargs.cpp | 131 +++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 externals/grill/py/source/pyargs.cpp

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

diff --git a/externals/grill/py/source/pyargs.cpp b/externals/grill/py/source/pyargs.cpp
new file mode 100644
index 00000000..be4adaa1
--- /dev/null
+++ b/externals/grill/py/source/pyargs.cpp
@@ -0,0 +1,131 @@
+/* 
+
+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 "main.h"
+
+
+PyObject *py::MakePyArgs(const t_symbol *s,const AtomList &args,I inlet,BL withself)
+{
+	PyObject *pArgs;
+
+	BL any = IsAnything(s);
+	pArgs = PyTuple_New(args.Count()+(any?1:0)+(inlet >= 0?1:0));
+
+	I pix = 0;
+
+	if(inlet >= 0) {
+		PyObject *pValue = PyInt_FromLong(inlet); 
+		
+		// reference stolen:
+		PyTuple_SetItem(pArgs, pix++, pValue); 
+	}
+
+	I ix;
+	PyObject *tmp;
+	if(!withself || args.Count() < (any?1:2)) tmp = pArgs,ix = pix;
+	else tmp = PyTuple_New(args.Count()+(any?1:0)),ix = 0;
+
+	if(any) {
+		PyObject *pValue = PyString_FromString(GetString(s));
+
+		// reference stolen here: 
+		PyTuple_SetItem(tmp, ix++, pValue); 
+	}
+
+	for(I i = 0; i < args.Count(); ++i) {
+		PyObject *pValue = NULL;
+		
+		if(IsFloat(args[i])) pValue = PyFloat_FromDouble((D)GetFloat(args[i]));
+		else if(IsInt(args[i])) pValue = PyInt_FromLong(GetInt(args[i]));
+		else if(IsSymbol(args[i])) pValue = PyString_FromString(GetString(args[i]));
+		else if(IsPointer(args[i])) pValue = NULL; // not handled
+
+		if(!pValue) {
+			post("py/pyext: cannot convert argument %i",any?i+1:i);
+			continue;
+		}
+
+		/* pValue reference stolen here: */
+		PyTuple_SetItem(tmp, ix++, pValue); 
+	}
+
+	if(tmp != pArgs) {
+		PyTuple_SetItem(pArgs, pix++, tmp); 
+#if PY_VERSION_HEX >= 0x02020000
+		_PyTuple_Resize(&pArgs,pix);
+#else
+		_PyTuple_Resize(&pArgs,pix,0);
+#endif
+	}
+
+	return pArgs;
+}
+
+flext::AtomList *py::GetPyArgs(PyObject *pValue,PyObject **self)
+{
+	if(pValue == NULL) return NULL; 
+	AtomList *ret = NULL;
+
+	// analyze return value or tuple
+
+	I rargc = 0;
+	BL ok = true;
+	retval tp = nothing;
+
+	if(PyString_Check(pValue)) {
+		rargc = 1;
+		tp = atom;
+	}
+	else if(PySequence_Check(pValue)) {
+		rargc = PySequence_Size(pValue);
+		tp = sequ;
+	}
+	else {
+		rargc = 1;
+		tp = atom;
+	}
+
+	ret = new AtomList(rargc);
+
+	for(I ix = 0; ix < rargc; ++ix) {
+		PyObject *arg;
+		switch(tp) {
+			case sequ: arg = PySequence_GetItem(pValue,ix); break;
+			default: arg = pValue;
+		}
+
+		if(PyInt_Check(arg)) SetInt((*ret)[ix],PyInt_AsLong(arg));
+		else if(PyLong_Check(arg)) SetInt((*ret)[ix],PyLong_AsLong(arg));
+		else if(PyFloat_Check(arg)) SetFloat((*ret)[ix],(F)PyFloat_AsDouble(arg));
+		else if(PyString_Check(arg)) SetString((*ret)[ix],PyString_AsString(arg));
+		else if(ix == 0 && self && PyInstance_Check(arg)) {
+			// assumed to be self ... that should be checked _somehow_ !!!
+			*self = arg;
+		}
+		else {
+			PyObject *tp = PyObject_Type(arg);
+			PyObject *stp = tp?PyObject_Str(tp):NULL;
+			C *tmp = "";
+			if(stp) tmp = PyString_AsString(stp);
+			post("py/pyext: Could not convert argument %s",tmp);
+			Py_XDECREF(stp);
+			Py_XDECREF(tp);
+			ok = false;
+		}
+		// No DECREF for arg -> borrowed from pValue!
+	}
+
+	if(!ok) { 
+		delete ret; 
+		ret = NULL; 
+	}
+	return ret;
+}
+
-- 
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