1 files changed, 116 insertions, 0 deletions
diff --git a/PyArcWelder/python_helpers.cpp b/PyArcWelder/python_helpers.cpp
new file mode 100644
index 0000000..acaae19
--- /dev/null
+++ b/PyArcWelder/python_helpers.cpp
@@ -0,0 +1,116 @@
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Arc Welder: Anti-Stutter Python Extension for the OctoPrint Arc Welder plugin.
+//
+// Compresses many G0/G1 commands into G2/G3(arc) commands where possible, ensuring the tool paths stay within the specified resolution.
+// This reduces file size and the number of gcodes per second.
+//
+// Copyright(C) 2020 - Brad Hochgesang
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// This program is free software : you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published
+// by the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+// GNU Affero General Public License for more details.
+//
+//
+// You can contact the author at the following email address: 
+// FormerLurker@pm.me
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+#include "python_helpers.h"
+namespace gcode_arc_converter {
+
+	int PyUnicode_SafeCheck(PyObject* py)
+	{
+#if PY_MAJOR_VERSION >= 3
+		return PyUnicode_Check(py);
+#else
+		return PyUnicode_Check(py);
+#endif
+	}
+
+	const char* PyUnicode_SafeAsString(PyObject* py)
+	{
+#if PY_MAJOR_VERSION >= 3
+		return PyUnicode_AsUTF8(py);
+#else
+		return (char*)PyString_AsString(py);
+#endif
+	}
+
+	PyObject* PyString_SafeFromString(const char* str)
+	{
+#if PY_MAJOR_VERSION >= 3
+		return PyUnicode_FromString(str);
+#else
+		return PyString_FromString(str);
+#endif
+	}
+
+	PyObject* PyUnicode_SafeFromString(std::string str)
+	{
+#if PY_MAJOR_VERSION >= 3
+		return PyUnicode_FromString(str.c_str());
+#else
+		// TODO:  try PyUnicode_DecodeUnicodeEscape maybe?
+		//return PyUnicode_DecodeUTF8(str.c_str(), NULL, "replace");
+		PyObject* pyString = PyString_FromString(str.c_str());
+		if (pyString == NULL)
+		{
+			PyErr_Print();
+			std::string message = "Unable to convert the c_str to a python string: ";
+			message += str;
+			PyErr_SetString(PyExc_ValueError, message.c_str());
+			return NULL;
+		}
+		PyObject* pyUnicode = PyUnicode_FromEncodedObject(pyString, NULL, "replace");
+		Py_DECREF(pyString);
+		return pyUnicode;
+#endif
+	}
+
+	double PyFloatOrInt_AsDouble(PyObject* py_double_or_int)
+	{
+		if (PyFloat_CheckExact(py_double_or_int))
+			return PyFloat_AsDouble(py_double_or_int);
+#if PY_MAJOR_VERSION < 3
+		else if (PyInt_CheckExact(py_double_or_int))
+			return static_cast<double>(PyInt_AsLong(py_double_or_int));
+#endif
+		else if (PyLong_CheckExact(py_double_or_int))
+			return static_cast<double>(PyLong_AsLong(py_double_or_int));
+		return 0;
+	}
+
+	long PyIntOrLong_AsLong(PyObject* value)
+	{
+		long ret_val;
+#if PY_MAJOR_VERSION < 3
+		if (PyInt_Check(value))
+		{
+			ret_val = PyInt_AsLong(value);
+		}
+		else
+		{
+			ret_val = PyLong_AsLong(value);
+		}
+#else
+		ret_val = PyLong_AsLong(value);
+#endif
+		return ret_val;
+	}
+
+	bool PyFloatLongOrInt_Check(PyObject* py_object)
+	{
+		return (
+			PyFloat_Check(py_object) || PyLong_Check(py_object)
+#if PY_MAJOR_VERSION < 3
+			|| PyInt_Check(py_object)
+#endif
+			);
+
+	}
+}
+\ No newline at end of file