TnbMfcRgnSemitransparentButton.h

[詳解]

#pragma once
#include "TnbMfcRgnButton.h"
 
 
 
//TNB Library
namespace TNB {
namespace MFC {
 
 
 
template<BYTE MODE = 0x1F, DWORD PAR = 50>
class CRgnSemitransparentButtonT : public CRgnButton
{
    DEFSUPER(CRgnButton);
    BYTE        m_semitransMode;        
    DWORD       m_parsent;              
    bool        m_boIsDoGetParentImage; 
    bool        m_boIsDoIniting;        
    void m_Compose(CBitmapHandle& _hh, const CBitmapImage& parentBitmap)
    {
        CBitmapImage bi;
        bi.Attach(_hh);
        bi.InsertOnAlphaBlend(0, 0, parentBitmap, 100 - m_parsent);
        _hh = bi.GetBitmapHandle();
    }
    void m_AllComp(const CBitmapImage& parentBitmap)
    {
        loop ( i, 4 )
        {
            if ( (m_semitransMode & _BIT(i)) != 0 )
            {
                m_Compose(_super::m_bmpButtons[i], parentBitmap);
            }
        }
        if ( (m_semitransMode & _BIT(4)) != 0 && ! IS_RGBVALUE(m_focusMaskColor) )
        {
            CBitmapHandle h = m_focusBitmap.GetBitmapHandle();
            m_Compose(h, parentBitmap);
            m_focusBitmap.Attach(h);
        }
    }
protected:
 
    virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
    {
        if ( message == WM_PAINT )
        {
            if ( m_boIsDoIniting ) { return 0; }
            if ( m_boIsDoGetParentImage )
            {
                LRESULT rr = _super::WindowProc(message, wParam, lParam);
                m_boIsDoIniting = true;
                m_boIsDoGetParentImage = false;
#if 0
                CRect rect;
                GetWindowRect(&rect);
                CWnd* pWnd = GetParent();
                ASSERTLIB( pWnd != NULL );
                DWORD dwMod = 0;
                if ( (pWnd->GetExStyle() & WS_EX_LAYERED) == 0 )
                {
                    MFCLIB::SetLayeredWindow(pWnd, 0, 255, MFCLIB::E_Alpha | MFCLIB::E_SetLayeredStyle);
                    dwMod = WS_EX_LAYERED;
                }
                pWnd->ScreenToClient(&rect);
                pWnd->RedrawWindow(&rect);
                CDC* pDC = pWnd->GetDC();
                ASSERT( pDC != NULL );
                CBitmapImage parentBitmap;
                parentBitmap.Set(*pDC, rect);
                pWnd->ReleaseDC(pDC);
                m_AllComp(parentBitmap);
                pWnd->ModifyStyleEx(dwMod, 0);
#else
                CWnd* pWnd = _super::GetParent();
                CBitmapImage bi;
                bi.SetFromClient(*pWnd);
                CRect rect;
                _super::GetWindowRect(rect);
                pWnd->ScreenToClient(rect);
                m_AllComp(bi.Cut(rect));
#endif
                m_boIsDoIniting = false;
                return rr;
            }
        }
        return _super::WindowProc(message, wParam, lParam);
    }
public:
 
    CRgnSemitransparentButtonT(BYTE semitransMode = MODE, DWORD parsent = PAR) 
        : _super(), m_boIsDoGetParentImage(true), m_boIsDoIniting(false)
        , m_semitransMode(semitransMode), m_parsent(parsent)
    {
    }
 
    void ReCalc(void)
    {
        m_boIsDoGetParentImage = true;
    }
};
 
 
 
}; //MFC
}; //TNB