ut_CharStrmReader.h

#ifndef NW4R_UT_CHAR_STRM_READER_H
#define NW4R_UT_CHAR_STRM_READER_H
#include <nw4r/types_nw4r.h>
 
namespace nw4r {
namespace ut {
 
class CharStrmReader {
public:
    typedef u16 (CharStrmReader::*ReadFunc)();
 
public:
    explicit CharStrmReader(ReadFunc pFunc)
        : mCharStrm(NULL), mReadFunc(pFunc) {}
 
    ~CharStrmReader() {}
 
    u16 ReadNextCharUTF8();
    u16 ReadNextCharUTF16();
    u16 ReadNextCharCP1252();
    u16 ReadNextCharSJIS();
 
    u16 Next() {
        return (this->*mReadFunc)();
    }
 
    const void* GetCurrentPos() const {
        return mCharStrm;
    }
 
    void Set(const char* pStrm) {
        mCharStrm = pStrm;
    }
    void Set(const wchar_t* pStrm) {
        mCharStrm = pStrm;
    }
 
private:
    template <typename T> T GetChar(int offset) const {
        return static_cast<const T*>(mCharStrm)[offset];
    }
 
    template <typename T> void StepStrm(int offset) {
        static_cast<const T*>(mCharStrm) += offset;
    }
 
private:
    const void* mCharStrm; // at 0x0
    ReadFunc mReadFunc;    // at 0x4
};
 
} // namespace ut
} // namespace nw4r
 
#endif