new file

direct/src/plugin/wstring_encode.cxx

@@ -0,0 +1,85 @@
+// Filename: wstring_encode.cxx
+// Created by:  drose (29Aug11)
+//
+////////////////////////////////////////////////////////////////////
+//
+// 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 "wstring_encode.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#endif  // _WIN32
+
+
+#ifdef _WIN32
+////////////////////////////////////////////////////////////////////
+//     Function: wstring_to_string
+//  Description: Encodes std::wstring to std::string using UTF-8.
+////////////////////////////////////////////////////////////////////
+bool
+wstring_to_string(string &result, const wstring &source) {
+  bool success = false;
+  int size = WideCharToMultiByte(CP_UTF8, 0, source.data(), source.length(),
+                                 NULL, 0, NULL, NULL);
+  if (size > 0) {
+    char *buffer = new char[size + 1];
+    int rc = WideCharToMultiByte(CP_UTF8, 0, source.data(), source.length(),
+                                 buffer, size, NULL, NULL);
+    if (rc != 0) {
+      buffer[size] = 0;
+      result = buffer;
+      success = true;
+    }
+    delete[] buffer;
+  }
+
+  return success;
+}
+#endif  // _WIN32
+
+#ifdef _WIN32
+////////////////////////////////////////////////////////////////////
+//     Function: string_to_wstring
+//  Description: Decodes std::string to std::wstring using UTF-8.
+////////////////////////////////////////////////////////////////////
+bool
+string_to_wstring(wstring &result, const string &source) {
+  bool success = false;
+  int size = MultiByteToWideChar(CP_UTF8, 0, source.data(), source.length(),
+                                 NULL, 0);
+  if (size > 0) {
+    wchar_t *buffer = new wchar_t[size + 1];
+    int rc = MultiByteToWideChar(CP_UTF8, 0, source.data(), source.length(),
+                                 buffer, size);
+    if (rc != 0) {
+      buffer[size] = 0;
+      result = buffer;
+      success = true;
+    }
+    delete[] buffer;
+  }
+
+  return success;
+}
+#endif  // _WIN32
+
+////////////////////////////////////////////////////////////////////
+//     Function: wstring ostream operator
+//  Description: Converts the wstring to utf-8 for output.
+////////////////////////////////////////////////////////////////////
+ostream &
+operator << (ostream &out, const wstring &str) {
+  string result;
+  if (wstring_to_string(result, str)) {
+    out << result;
+  }
+  return out;
+}

direct/src/plugin/wstring_encode.h

@@ -0,0 +1,33 @@
+// Filename: wstring_encode.h
+// Created by:  drose (29Jun09)
+//
+////////////////////////////////////////////////////////////////////
+//
+// 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 WSTRING_ENCODE_H
+#define WSTRING_ENCODE_H
+
+#include <string>
+using namespace std;
+
+// Presently, these two functions are implemented only for Windows,
+// which is the only place they are needed.  (Only Windows requires
+// wstrings for filenames.)
+#ifdef _WIN32
+bool wstring_to_string(string &result, const wstring &source);
+bool string_to_wstring(wstring &result, const string &source);
+
+ostream &operator << (ostream &out, const wstring &str);
+#endif // _WIN32
+
+#endif
+
+