axmol/cocos/platform/win32/CCUtils-win32.cpp

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

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#include "base/ccMacros.h"
#include "platform/CCPlatformMacros.h"
#include "platform/win32/CCUtils-win32.h"

#include <sstream>

NS_CC_BEGIN

std::wstring StringUtf8ToWideChar(const std::string& strUtf8)
{
    std::wstring ret;
    if (!strUtf8.empty())
    {
        int nNum = MultiByteToWideChar(CP_UTF8, 0, strUtf8.c_str(), -1, nullptr, 0);
        if (nNum)
        {
            WCHAR* wideCharString = new WCHAR[nNum + 1];
            wideCharString[0] = 0;

            nNum = MultiByteToWideChar(CP_UTF8, 0, strUtf8.c_str(), -1, wideCharString, nNum + 1);

            ret = wideCharString;
            delete[] wideCharString;
        }
        else
        {
            CCLOG("Wrong convert to WideChar code:0x%x", GetLastError());
        }
    }
    return ret;
}

std::string StringWideCharToUtf8(const std::wstring& strWideChar)
{
    std::string ret;
    if (!strWideChar.empty())
    {
        int nNum = WideCharToMultiByte(CP_UTF8, 0, strWideChar.c_str(), -1, nullptr, 0, nullptr, FALSE);
        if (nNum)
        {
            char* utf8String = new char[nNum + 1];
            utf8String[0] = 0;

            nNum = WideCharToMultiByte(CP_UTF8, 0, strWideChar.c_str(), -1, utf8String, nNum + 1, nullptr, FALSE);

            ret = utf8String;
            delete[] utf8String;
        }
        else
        {
            CCLOG("Wrong convert to Utf8 code:0x%x", GetLastError());
        }
    }

    return ret;
}

std::string StringWideCharToMultiByte(const std::wstring& strWideChar, unsigned int cp)
{
    int cchMultiByte = WideCharToMultiByte(cp, 0, strWideChar.c_str(), static_cast<int>(strWideChar.length()), NULL, 0, NULL, NULL);
    std::string buffer(cchMultiByte, '\0');
    WideCharToMultiByte(cp, 0, strWideChar.c_str(), static_cast<int>(strWideChar.length()), &buffer.front(), cchMultiByte, NULL, NULL);
    return buffer;
}

std::string UTF8StringToMultiByte(const std::string& strUtf8)
{
    std::string ret;
    if (!strUtf8.empty())
    {
        std::wstring strWideChar = StringUtf8ToWideChar(strUtf8);
        int nNum = WideCharToMultiByte(CP_ACP, 0, strWideChar.c_str(), -1, nullptr, 0, nullptr, FALSE);
        if (nNum)
        {
            char* ansiString = new char[nNum + 1];
            ansiString[0] = 0;

            nNum = WideCharToMultiByte(CP_ACP, 0, strWideChar.c_str(), -1, ansiString, nNum + 1, nullptr, FALSE);

            ret = ansiString;
            delete[] ansiString;
        }
        else
        {
            CCLOG("Wrong convert to Ansi code:0x%x", GetLastError());
        }
    }

    return ret;
}

NS_CC_END