From 3ce705519dc8f998c092b24b9a52f2930c996540 Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Mon, 20 Oct 2014 11:02:42 +0000
Subject: [PATCH] Oops, forgot these two files.  Part of cfsworks' patch

---
 panda/src/display/graphicsWindow_ext.cxx | 61 ++++++++++++++++++++++++
 panda/src/display/graphicsWindow_ext.h   | 42 ++++++++++++++++
 2 files changed, 103 insertions(+)
 create mode 100644 panda/src/display/graphicsWindow_ext.cxx
 create mode 100644 panda/src/display/graphicsWindow_ext.h

diff --git a/panda/src/display/graphicsWindow_ext.cxx b/panda/src/display/graphicsWindow_ext.cxx
new file mode 100644
index 0000000000..5bbd4a0107
--- /dev/null
+++ b/panda/src/display/graphicsWindow_ext.cxx
@@ -0,0 +1,61 @@
+// Filename: graphicsWindow_ext.cxx
+// Created by:  CFSworks (11Oct14)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) Carnegie Mellon University.  All rights reserved.
+//
+// All use of this software is subject to the terms of the revised BSD
+// license.  You should have received a copy of this license along
+// with this source code in a file named "LICENSE."
+//
+////////////////////////////////////////////////////////////////////
+
+#include "graphicsWindow_ext.h"
+
+#ifdef HAVE_PYTHON
+
+////////////////////////////////////////////////////////////////////
+//     Function: Extension<GraphicsWindow>::add_custom_event_handler
+//       Access: Published
+//  Description: Adds a python event handler to be called
+//               when a window event occurs.
+////////////////////////////////////////////////////////////////////
+void Extension<GraphicsWindow>::
+add_python_event_handler(PyObject* handler, PyObject* name){
+  PythonGraphicsWindowProc* pgwp = new PythonGraphicsWindowProc(handler, name);
+  _this->_python_window_proc_classes.insert(pgwp);
+  _this->add_window_proc(pgwp);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: Extension<GraphicsWindow>::remove_custom_event_handler
+//       Access: Published
+//  Description: Removes the specified python event handler.
+////////////////////////////////////////////////////////////////////
+void Extension<GraphicsWindow>::
+remove_python_event_handler(PyObject* name){
+  list<PythonGraphicsWindowProc*> toRemove;
+  GraphicsWindow::PythonWinProcClasses::iterator iter;
+  for (iter = _this->_python_window_proc_classes.begin(); iter != _this->_python_window_proc_classes.end(); ++iter) {
+    PythonGraphicsWindowProc* pgwp = (PythonGraphicsWindowProc*)*iter;
+    if (PyObject_RichCompareBool(pgwp->get_name(), name, Py_EQ) == 1) {
+      toRemove.push_back(pgwp);
+    }
+#if PY_MAJOR_VERSION < 3
+    else if (PyObject_Compare(pgwp->get_name(), name) == 0) {
+      toRemove.push_back(pgwp);
+    }
+#endif
+  }
+  list<PythonGraphicsWindowProc*>::iterator iter2;
+  for (iter2 = toRemove.begin(); iter2 != toRemove.end(); ++iter2) {
+    PythonGraphicsWindowProc* pgwp = *iter2;
+    _this->remove_window_proc(pgwp);
+    _this->_python_window_proc_classes.erase(pgwp);
+    delete pgwp;
+  }
+}
+
+#endif  // HAVE_PYTHON
diff --git a/panda/src/display/graphicsWindow_ext.h b/panda/src/display/graphicsWindow_ext.h
new file mode 100644
index 0000000000..c96ce3c445
--- /dev/null
+++ b/panda/src/display/graphicsWindow_ext.h
@@ -0,0 +1,42 @@
+// Filename: renderState_ext.h
+// Created by:  CFSworks (11Oct14)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) Carnegie Mellon University.  All rights reserved.
+//
+// All use of this software is subject to the terms of the revised BSD
+// license.  You should have received a copy of this license along
+// with this source code in a file named "LICENSE."
+//
+////////////////////////////////////////////////////////////////////
+
+#ifndef GRAPHICSWINDOW_EXT_H
+#define GRAPHICSWINDOW_EXT_H
+
+#include "dtoolbase.h"
+
+#ifdef HAVE_PYTHON
+
+#include "extension.h"
+#include "graphicsWindow.h"
+#include "pythonGraphicsWindowProc.h"
+#include "py_panda.h"
+
+////////////////////////////////////////////////////////////////////
+//       Class : Extension<GraphicsWindow>
+// Description : This class defines the extension methods for
+//               GraphicsWindow, which are called instead of
+//               any C++ methods with the same prototype.
+////////////////////////////////////////////////////////////////////
+template<>
+class Extension<GraphicsWindow> : public ExtensionBase<GraphicsWindow> {
+public:
+  void add_python_event_handler(PyObject* handler, PyObject* name);
+  void remove_python_event_handler(PyObject* name);
+};
+
+#endif  // HAVE_PYTHON
+
+#endif  // GRAPHICSWINDOW_EXT_H