Remove --enable-hidpi-pdf-plugin flags, enable by default
[chromium-blink-merge.git] / base / sys_string_conversions_win.cc
blob8b2367b3afa2d0fe485193de2004afa61618c72d
1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/sys_string_conversions.h"
7 #include <windows.h>
9 #include "base/string_piece.h"
11 namespace base {
13 // Do not assert in this function since it is used by the asssertion code!
14 std::string SysWideToUTF8(const std::wstring& wide) {
15 return SysWideToMultiByte(wide, CP_UTF8);
18 // Do not assert in this function since it is used by the asssertion code!
19 std::wstring SysUTF8ToWide(const StringPiece& utf8) {
20 return SysMultiByteToWide(utf8, CP_UTF8);
23 std::string SysWideToNativeMB(const std::wstring& wide) {
24 return SysWideToMultiByte(wide, CP_ACP);
27 std::wstring SysNativeMBToWide(const StringPiece& native_mb) {
28 return SysMultiByteToWide(native_mb, CP_ACP);
31 // Do not assert in this function since it is used by the asssertion code!
32 std::wstring SysMultiByteToWide(const StringPiece& mb, uint32 code_page) {
33 if (mb.empty())
34 return std::wstring();
36 int mb_length = static_cast<int>(mb.length());
37 // Compute the length of the buffer.
38 int charcount = MultiByteToWideChar(code_page, 0,
39 mb.data(), mb_length, NULL, 0);
40 if (charcount == 0)
41 return std::wstring();
43 std::wstring wide;
44 wide.resize(charcount);
45 MultiByteToWideChar(code_page, 0, mb.data(), mb_length, &wide[0], charcount);
47 return wide;
50 // Do not assert in this function since it is used by the asssertion code!
51 std::string SysWideToMultiByte(const std::wstring& wide, uint32 code_page) {
52 int wide_length = static_cast<int>(wide.length());
53 if (wide_length == 0)
54 return std::string();
56 // Compute the length of the buffer we'll need.
57 int charcount = WideCharToMultiByte(code_page, 0, wide.data(), wide_length,
58 NULL, 0, NULL, NULL);
59 if (charcount == 0)
60 return std::string();
62 std::string mb;
63 mb.resize(charcount);
64 WideCharToMultiByte(code_page, 0, wide.data(), wide_length,
65 &mb[0], charcount, NULL, NULL);
67 return mb;
70 } // namespace base