axmol/cocos2dx/platform/CCFileUtils.h

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

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#ifndef __CC_FILEUTILS_PLATFORM_H__
#define __CC_FILEUTILS_PLATFORM_H__

#include <string>
#include "CCPlatformMacros.h"
#include "ccTypes.h"
#include "ccTypeInfo.h"

NS_CC_BEGIN

class CCDictionary;
/**
 * @addtogroup platform
 * @{
 */

//! @brief  Helper class to handle file operations
class CC_DLL CCFileUtils : public TypeInfo
{
public:
    virtual long getClassTypeInfo() {
		static const long id = cocos2d::getHashCodeByString(typeid(cocos2d::CCFileUtils).name());
		return id;
    }
    
    static CCFileUtils* sharedFileUtils();
    static void purgeFileUtils();

    void purgeCachedEntries();
    /**
    @brief Get resource file data
    @param[in]  pszFileName The resource file name which contains the path.
    @param[in]  pszMode The read mode of the file.
    @param[out] pSize If the file read operation succeeds, it will be the data size, otherwise 0.
    @return Upon success, a pointer to the data is returned, otherwise NULL.
    @warning Recall: you are responsible for calling delete[] on any Non-NULL pointer returned.
    */
    unsigned char* getFileData(const char* pszFileName, const char* pszMode, unsigned long * pSize);

    /**
    @brief Get resource file data from a zip file.
    @param[in]  pszFileName The resource file name which contains the relative path of the zip file.
    @param[out] pSize If the file read operation succeeds, it will be the data size, otherwise 0.
    @return Upon success, a pointer to the data is returned, otherwise NULL.
    @warning Recall: you are responsible for calling delete[] on any Non-NULL pointer returned.
    */
    unsigned char* getFileDataFromZip(const char* pszZipFilePath, const char* pszFileName, unsigned long * pSize);

    /**
    @brief   Generate the absolute path of the file.
    @param   pszRelativePath     The relative path of the file.
    @return  The absolute path of the file.
    @warning We only add the ResourcePath before the relative path of the file.
    If you have not set the ResourcePath, the function appends "/NEWPLUS/TDA_DATA/UserData/" by default.
    You can set ResourcePath with void setResourcePath(const char *pszResourcePath);
    */
    CC_DEPRECATED_ATTRIBUTE const char* fullPathFromRelativePath(const char *pszRelativePath);
    
    /** Returns the fullpath for a given filename.
     
     First it will try to get a new filename from the "filenameLookup" dictionary. If a new filename can't be found on the dictionary, it will use the original filename.
     Then it will try obtain the full path of the filename using the CCFileUtils search rules:  resources directory
     
     If the filename can't be found on resource directory(e.g. Resources/iphone-hd), it will go back to the root of asset folder(e.g. Resources/) to find the filename.
     
     If the filename can't be found on the file system, it will return the filename directly.
     
     This method was added to simplify multiplatform support. Whether you are using cocos2d-js or any cross-compilation toolchain like StellaSDK or Apportable,
     you might need to load differerent resources for a given file in the different platforms.
     
     Examples:
     
     * In iOS: "image.png" -> "image.pvr" -> "/full/path/res_dir/image.pvr"
     * In Android: "image.png" -> "image.png" -> "/full/path/res_dir/image.png"
     
     @since v2.1
     */
    const char* fullPathForFilename(const char* filename);
    
    /**
     * Loads the filenameLookup dictionary from the contents of a filename.
     * 
     * @note The plist file name should follow the format below:
     * <?xml version="1.0" encoding="UTF-8"?>
     * <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
     * <plist version="1.0">
     * <dict>
     *     <key>ios</key>
     *     <dict>
     *         <key>sounds/click.wav</key>
     *         <string>sounds/click.caf</string>
     *         <key>sounds/endgame.wav</key>
     *         <string>sounds/endgame.caf</string>
     *         <key>sounds/gem-0.wav</key>
     *         <string>sounds/gem-0.caf</string>
     *     </dict>
     *     <key>android</key>
     *     <dict>
     *         <key>sounds/click.wav</key>
     *         <string>sounds/click.ogg</string>
     *         <key>sounds/endgame.wav</key>
     *         <string>sounds/endgame.ogg</string>
     *         <key>sounds/gem-0.wav</key>
     *         <string>sounds/gem-0.ogg</string>
     *     </dict>
     *     <key>metadata</key>
     *     <dict>
     *         <key>version</key>
     *         <integer>1</integer>
     *     </dict>
     * </dict>
     * </plist>
     *
     * @param filename The plist file name.
     *
     @since v2.1
     */
    void loadFilenameLookupDictionaryFromFile(const char* filename);
    
    /** Loads the filenameLookup dictionary from the contents of a filename.
     
     @since v2.1
     */
    void setFilenameLookupDictionary(CCDictionary* pFilenameLookupDict);
    
    /// @cond
    const char* fullPathFromRelativeFile(const char *pszFilename, const char *pszRelativeFile);
    /// @endcond

    /**
    @brief  Set the resource directory; we will find resources relative to this directory.
    @param pszDirectoryName  Relative path to root.
    */
    void setResourceDirectory(const char *pszDirectoryName);

    /**
    @brief  Get the resource directory
    */
    const char* getResourceDirectory();

    /**
    @brief   Get the writeable path
    @return  The path that can write/read file
    */
    std::string getWriteablePath();

    /**
    @brief Set/Get whether pop-up a message box when the image load failed
    */
    void setPopupNotify(bool bNotify);
    bool isPopupNotify();
    
protected:
    CCFileUtils(void)
    : m_pFilenameLookupDict(NULL)
    {
    }
    
    std::string m_obDirectory;
    
    /** Dictionary used to lookup filenames based on a key.
     It is used internally by the following methods:
     
     const char* fullPathForFilename(const char* )key;
     
     @since v2.1
     */
    CCDictionary* m_pFilenameLookupDict;
};

// end of platform group
/// @}

NS_CC_END

#endif    // __CC_FILEUTILS_PLATFORM_H__