axmol/cocos2dx/platform/CCFileUtils.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/

#include "CCFileUtils.h"

#if (CC_TARGET_PLATFORM != CC_PLATFORM_IOS && CC_TARGET_PLATFORM != CC_PLATFORM_AIRPLAY)

#include <stack>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xmlmemory.h>
#include "CCLibxml2.h"
#include "CCString.h"
#include "CCSAXParser.h"
#include "support/zip_support/unzip.h"

NS_CC_BEGIN;

typedef enum 
{
    SAX_NONE = 0,
    SAX_KEY,
    SAX_DICT,
    SAX_INT,
    SAX_REAL,
    SAX_STRING
}CCSAXState;

class CCDictMaker : public CCSAXDelegator
{
public:
    CCDictionary<std::string, CCObject*> *m_pRootDict;
    CCDictionary<std::string, CCObject*> *m_pCurDict;
    std::stack<CCDictionary<std::string, CCObject*>*> m_tDictStack;
    std::string m_sCurKey;///< parsed key
    CCSAXState m_tState;
public:
    CCDictMaker()
    {
        m_pRootDict = NULL;
        m_pCurDict = NULL;
        m_tState = SAX_NONE;
    }
    ~CCDictMaker()
    {
    }
    CCDictionary<std::string, CCObject*> *dictionaryWithContentsOfFile(const char *pFileName)
    {
        CCSAXParser parser;

        if (false == parser.init("UTF-8"))
        {
            return NULL;
        }
        parser.setDelegator(this);

        parser.parse(pFileName);
        return m_pRootDict;
    }

    void startElement(void *ctx, const char *name, const char **atts)
    {
        std::string sName((char*)name);
        if( sName == "dict" )
        {
            CCDictionary<std::string, CCObject*> *pNewDict = new CCDictionary<std::string, CCObject*>();
            if(! m_pRootDict)
            {
                m_pRootDict = pNewDict;
                pNewDict->autorelease();
            }
            else
            {
                CCAssert(m_pCurDict && !m_sCurKey.empty(), "");
                m_pCurDict->setObject(pNewDict, m_sCurKey);
                pNewDict->release();
                m_sCurKey.clear();
            }
            m_pCurDict = pNewDict;
            m_tDictStack.push(m_pCurDict);
            m_tState = SAX_DICT;
        }
        else if(sName == "key")
        {
            m_tState = SAX_KEY;
        }
        else if(sName == "integer")
        {
            m_tState = SAX_INT;
        }
        else if(sName == "real")
        {
            m_tState = SAX_REAL;
        }
        else if(sName == "string")
        {
            m_tState = SAX_STRING;
        }
        else
        {
            m_tState = SAX_NONE;
        }
    }

    void endElement(void *ctx, const char *name)
    {
        std::string sName((char*)name);
        if( sName == "dict" )
        {
            m_tDictStack.pop();
            if ( !m_tDictStack.empty() )
            {
                m_pCurDict = (CCDictionary<std::string, CCObject*>*)(m_tDictStack.top());
            }
        }
        m_tState = SAX_NONE;
    }

    void textHandler(void *ctx, const char *ch, int len)
    {
        if (m_tState == SAX_NONE)
        {
            return;
        }
        CCString *pText = new CCString();
        pText->m_sString = std::string((char*)ch,0,len);

        switch(m_tState)
        {
        case SAX_KEY:
            m_sCurKey = pText->m_sString;
            break;
        case SAX_INT:
        case SAX_REAL:
        case SAX_STRING:
            {
                CCAssert(!m_sCurKey.empty(), "not found key : <integet/real>");
                m_pCurDict->setObject(pText, m_sCurKey);
                break;
            }
        }
        pText->release();
    }
};

std::string& CCFileUtils::ccRemoveHDSuffixFromFile(std::string& path)
{
#if CC_IS_RETINA_DISPLAY_SUPPORTED

    if( CC_CONTENT_SCALE_FACTOR() == 2 )
    {
        std::string::size_type pos = path.rfind("/") + 1; // the begin index of last part of path

        std::string::size_type suffixPos = path.rfind(CC_RETINA_DISPLAY_FILENAME_SUFFIX);
        if (std::string::npos != suffixPos && suffixPos > pos)
        {
            CCLog("cocos2d: FilePath(%s) contains suffix(%s), remove it.", path.c_str(),
                CC_RETINA_DISPLAY_FILENAME_SUFFIX);
            path.replace(suffixPos, strlen(CC_RETINA_DISPLAY_FILENAME_SUFFIX), "");
        }
    }

#endif // CC_IS_RETINA_DISPLAY_SUPPORTED

    return path;
}

CCDictionary<std::string, CCObject*> *CCFileUtils::dictionaryWithContentsOfFile(const char *pFileName)
{
    CCDictMaker tMaker;
    return tMaker.dictionaryWithContentsOfFile(pFileName);
}

unsigned char* CCFileUtils::getFileDataFromZip(const char* pszZipFilePath, const char* pszFileName, unsigned long * pSize)
{
    unsigned char * pBuffer = NULL;
    unzFile pFile = NULL;
    *pSize = 0;

    do 
    {
        CC_BREAK_IF(!pszZipFilePath || !pszFileName);
        CC_BREAK_IF(strlen(pszZipFilePath) == 0);

        pFile = unzOpen(pszZipFilePath);
        CC_BREAK_IF(!pFile);

        int nRet = unzLocateFile(pFile, pszFileName, 1);
        CC_BREAK_IF(UNZ_OK != nRet);

        char szFilePathA[260];
        unz_file_info FileInfo;
        nRet = unzGetCurrentFileInfo(pFile, &FileInfo, szFilePathA, sizeof(szFilePathA), NULL, 0, NULL, 0);
        CC_BREAK_IF(UNZ_OK != nRet);

        nRet = unzOpenCurrentFile(pFile);
        CC_BREAK_IF(UNZ_OK != nRet);

        pBuffer = new unsigned char[FileInfo.uncompressed_size];
        int nSize = 0;
        nSize = unzReadCurrentFile(pFile, pBuffer, FileInfo.uncompressed_size);
        CCAssert(nSize == 0 || nSize == FileInfo.uncompressed_size, "the file size is wrong");

        *pSize = FileInfo.uncompressed_size;
        unzCloseCurrentFile(pFile);
    } while (0);

    if (pFile)
    {
        unzClose(pFile);
    }

    return pBuffer;
}

//////////////////////////////////////////////////////////////////////////
// Notification support when getFileData from invalid file path.
//////////////////////////////////////////////////////////////////////////
static bool s_bPopupNotify = true;

void CCFileUtils::setIsPopupNotify(bool bNotify)
{
    s_bPopupNotify = bNotify;
}

bool CCFileUtils::getIsPopupNotify()
{
    return s_bPopupNotify;
}

NS_CC_END;

#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
#include "win32/CCFileUtils_win32.cpp"
#endif

#if (CC_TARGET_PLATFORM == CC_PLATFORM_WOPHONE)
#include "wophone/CCFileUtils_wophone.cpp"
#endif

#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
#include "android/CCFileUtils_android.cpp"
#endif

#endif // (CC_TARGET_PLATFORM != CC_PLATFORM_IOS && CC_TARGET_PLATFORM != CC_PLATFORM_AIRPLAY)