axmol/cocos2dx/platform/win32/CCFileUtils_win32.cpp

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

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#include "CCFileUtils_win32.h"

#include <windows.h>

#include <stack>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xmlmemory.h>
#include "CCLibxml2.h"
#include "CCString.h"

namespace cocos2d {

void plist_startElement(void *ctx, const xmlChar *name, const xmlChar **atts);
void plist_endElement(void *ctx, const xmlChar *name);
void plist_characters(void *ctx, const xmlChar *ch, int len);

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

class CCDictMaker
{
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)
	{
		FILE *fp = NULL;
		if( !(fp = fopen(pFileName, "r")) )
		{
			return NULL;
		}
		fseek(fp,0,SEEK_END);
		int size = ftell(fp);
		fseek(fp,0,SEEK_SET);
		char *buffer = new char[size+1];
		fread(buffer,sizeof(char),size,fp);
		fclose(fp);
		/*
		* this initialize the library and check potential ABI mismatches
		* between the version it was compiled for and the actual shared
		* library used.
		*/
		LIBXML_TEST_VERSION
		xmlSAXHandler saxHandler;
		memset( &saxHandler, 0, sizeof(saxHandler) );
		// Using xmlSAXVersion( &saxHandler, 2 ) generate crash as it sets plenty of other pointers...
		saxHandler.initialized = XML_SAX2_MAGIC;  // so we do this to force parsing as SAX2.
 		saxHandler.startElement = &plist_startElement;
 		saxHandler.endElement = &plist_endElement;
 		saxHandler.characters = &plist_characters;

		int result = xmlSAXUserParseMemory( &saxHandler, this, buffer, size );
		if ( result != 0 )
		{
			return NULL;
		}
		/*
		* Cleanup function for the XML library.
		*/
		xmlCleanupParser();
		/*
		* this is to debug memory for regression tests
		*/
		xmlMemoryDump();
		delete []buffer;
		return m_pRootDict;
	}
};
void plist_startElement(void *ctx, const xmlChar *name, const xmlChar **atts)
{
	CCDictMaker *pMaker = (CCDictMaker*)(ctx);
	std::string sName((char*)name);
	if( sName == "dict" )
	{
		CCDictionary<std::string, CCObject*> *pNewDict = new CCDictionary<std::string, CCObject*>();
		if(! pMaker->m_pRootDict)
		{
			pMaker->m_pRootDict = pNewDict;
			pNewDict->autorelease();
		}
		else
		{
			CCAssert(pMaker->m_pCurDict && !pMaker->m_sCurKey.empty(), "");
			pMaker->m_pCurDict->setObject(pNewDict, pMaker->m_sCurKey);
			pNewDict->release();
			pMaker->m_sCurKey.clear();
		}
		pMaker->m_pCurDict = pNewDict;
		pMaker->m_tDictStack.push(pMaker->m_pCurDict);
		pMaker->m_tState = SAX_DICT;
	}
	else if(sName == "key")
	{
		pMaker->m_tState = SAX_KEY;
	}
	else if(sName == "integer")
	{
		pMaker->m_tState = SAX_INT;
	}
	else if(sName == "real")
	{
		pMaker->m_tState = SAX_REAL;
	}
	else if(sName == "string")
	{
		pMaker->m_tState = SAX_STRING;
	}
	else
	{
		pMaker->m_tState = SAX_NONE;
	}
}
void plist_endElement(void *ctx, const xmlChar *name)
{
	CCDictMaker * pMaker = (CCDictMaker*)(ctx);
	std::string sName((char*)name);
	if( sName == "dict" )
	{
		pMaker->m_tDictStack.pop();
		if ( !pMaker->m_tDictStack.empty() )
		{
			pMaker->m_pCurDict = (CCDictionary<std::string, CCObject*>*)(pMaker->m_tDictStack.top());
		}
	}
	pMaker->m_tState = SAX_NONE;
}
void plist_characters(void *ctx, const xmlChar *ch, int len)
{
 	CCDictMaker * pMaker = (CCDictMaker*)(ctx);
	if (pMaker->m_tState == SAX_NONE)
	{
		return;
	}
 	CCString *pText = new CCString();
	pText->m_sString = std::string((char*)ch,0,len);

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

// record the resource path
static char s_pszResourcePath[MAX_PATH] = {0};

void _CheckPath()
{
	if (! s_pszResourcePath[0])
	{
		WCHAR  wszPath[MAX_PATH];
		int nNum = WideCharToMultiByte(CP_ACP, 0, wszPath, 
			GetModuleFileName(NULL, wszPath, MAX_PATH), 
			s_pszResourcePath, MAX_PATH, NULL, NULL);

		for (int i = nNum; i >= 0; --i)
		{
			if (L'\\' == s_pszResourcePath[i])
			{
				s_pszResourcePath[i + 1] = 0;
				break;
			}
		}
	}
}

void CCFileUtils::setResourcePath(const char *pszResourcePath)
{
    CCAssert(pszResourcePath != NULL, "[FileUtils setResourcePath] -- wrong resource path");
    CCAssert(strlen(pszResourcePath) <= MAX_PATH, "[FileUtils setResourcePath] -- resource path too long");

    strcpy(s_pszResourcePath, pszResourcePath);
}

const char* CCFileUtils::fullPathFromRelativePath(const char *pszRelativePath)
{
	_CheckPath();

    CCString * pRet = new CCString();
    pRet->autorelease();
    if ((strlen(pszRelativePath) > 1 && pszRelativePath[1] == ':'))
    {
        pRet->m_sString = pszRelativePath;
    }
    else if (strlen(pszRelativePath) > 0 && pszRelativePath[0] == '/')
    {
		char szDriver[3] = {s_pszResourcePath[0], s_pszResourcePath[1], 0};
        pRet->m_sString = szDriver;
        pRet->m_sString += pszRelativePath;
    }
    else
    {
        pRet->m_sString = s_pszResourcePath;
        pRet->m_sString += pszRelativePath;
    }
#if (CC_IS_RETINA_DISPLAY_SUPPORTED)
    if (CC_CONTENT_SCALE_FACTOR() != 1.0f)
    {
        ccxString hiRes = pRet->m_sString.c_str();
        ccxString::size_type pos = hiRes.find_last_of("/\\");
        ccxString::size_type dotPos = hiRes.find_last_of(".");
        
        if (ccxString::npos != dotPos && dotPos > pos)
        {
            hiRes.insert(dotPos, CC_RETINA_DISPLAY_FILENAME_SUFFIX);
        }
        else
        {
            hiRes.append(CC_RETINA_DISPLAY_FILENAME_SUFFIX);
        }
        DWORD attrib = GetFileAttributesA(hiRes.c_str());
        
        if (attrib != INVALID_FILE_ATTRIBUTES && ! (FILE_ATTRIBUTE_DIRECTORY & attrib))
        {
            pRet->m_sString.swap(hiRes);
        }
    }
#endif
	return pRet->m_sString.c_str();
}

const char *CCFileUtils::fullPathFromRelativeFile(const char *pszFilename, const char *pszRelativeFile)
{
	_CheckPath();
	std::string relativeFile = fullPathFromRelativePath(pszRelativeFile);
	CCString *pRet = new CCString();
	pRet->autorelease();
	pRet->m_sString = relativeFile.substr(0, relativeFile.rfind('/')+1);
	pRet->m_sString += pszFilename;
	return pRet->m_sString.c_str();
}

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

}//namespace   cocos2d