MFC 自定义压缩，解压缩工具

界面效果如下：

对外提供的接口如下：

public:

void setCallback(zp::Callback callback, void* param);

bool open(const zp::String& path, bool readonly = false);

bool create(const zp::String& path, const zp::String& inputPath);

void close();

bool isOpen() const;

bool defrag();

zp::IPackage* getPack() const;

const zp::Char* packageFilename() const;

bool enterDir(const zp::String& path);

//srcPath can't be empty

//if dstPath is empty, file/dir will be add to current path of package

bool add(const zp::String& srcPath, const zp::String& dstPath, bool flush = true);

bool remove(const zp::String& path);

void flush();

//if srcPath is empty, current path of package will be extracted

//if dstPath is empty, file/dir will be extracted to current path of system

bool extract(const zp::String& srcPath, const zp::String& dstPath);

void setCurrentNode(const ZpNode* node);

const ZpNode* currentNode() const;

const ZpNode* rootNode() const;

const zp::String& currentPath() const;

void getNodePath(const ZpNode* node, zp::String& path) const;

zp::u64 countDiskFileSize(const zp::String& path);

zp::u64 countNodeFileSize(const ZpNode* node);