TnbBitFlag.h

[詳解]

#pragma once
#include "TnbStr.h"
#include "TnbStaticMap.h"
 
 
 
//TNB Library
namespace TNB 
{
 
 
 
class CAbstructBitFlag
{
public:
 
    CAbstructBitFlag(DWORD flag = 0) : m_flag(flag)
    {
    }
 
    operator DWORD(void) const
    {
        return m_flag;
    }
 
    bool IsValid(DWORD fg) const
    {
        return ((m_flag & fg) == fg);
    }
 
    bool IsValidByBitNo(DWORD bn) const
    {
        return (m_flag & _BIT(bn)) != 0;
    }
 
    void Valid(DWORD fg)
    {
        m_flag |= fg;
    }
 
    void Invalid(DWORD fg)
    {
        m_flag &= ~fg;
    }
 
    CStr ToString(void) const
    {
        CStr s;
        DWORD flag = m_flag;
        DWORD bf;
        CStr name;
        INDEX index = 0;
        while ( Table(bf, name, index) )
        {
            if ( (flag & bf) == bf )
            {
                s += _T("(") + name + _T(")");
                flag &= ~bf;
            }
            index++;
        }
        return s;
    }
 
protected:
 
    virtual bool Table(DWORD& _bf, CStr& _name, INDEX index) const = 0;
 
private:
    DWORD   m_flag; 
 
};
 
 
 
class CWindowStyleBitFlag : public CAbstructBitFlag
{
    DEFSUPER(CAbstructBitFlag);
public:
 
    CWindowStyleBitFlag(DWORD flag = 0) : _super(flag)
    {
    }
 
protected:
 
    virtual bool Table(DWORD& _bf, CStr& _name, INDEX index) const
    {
        const static CStaticMapT<DWORD ,LPCTSTR> maps[] = 
        {
            #ifndef _TnbDOXYGEN
            #define _X(XX) {XX, _T(#XX)}
            _X(WS_POPUP),
            _X(WS_CHILD),
            _X(WS_MINIMIZE),
            _X(WS_VISIBLE),
            _X(WS_DISABLED),
            _X(WS_CLIPSIBLINGS),
            _X(WS_CLIPCHILDREN),
            _X(WS_MAXIMIZE),
            _X(WS_CAPTION),
            _X(WS_BORDER),
            _X(WS_DLGFRAME),
            _X(WS_VSCROLL),
            _X(WS_HSCROLL),
            _X(WS_SYSMENU),
            _X(WS_THICKFRAME),
            _X(WS_MINIMIZEBOX),
            _X(WS_MAXIMIZEBOX),
            #undef _X
            #endif //_TnbDOXYGEN
        };
        LPCTSTR lpsz = NULL;
        if ( CStaticMapT<DWORD, LPCTSTR>::Get(_bf, lpsz, index, maps) )
        {
            _name = lpsz;
            return true;
        }
        return false;
    }
};
 
 
 
}; //TNB