splitter class CXTSplitterWndEx

.H file



class CXTSplitterWndEx2 : public CXTSplitterWndEx

{

public:

    CXTSplitterWndEx2();



    virtual void       
    SetColors       
           
    (COLORREF crTL, COLORREF crBR, COLORREF crInside);

    virtual void       
    SetMinMax       
           
    (UINT nMin, UINT nMax);

    virtual void       
    OnDrawSplitter       
            (CDC* pDC,
ESplitType nType, const CRect& rectArg);

    virtual void       
    StartTracking       
            (int ht);



protected:

    COLORREF       
        m_crTopLeft, m_crBottomRight,
m_crInside;

    UINT       
            m_nMin, m_nMax;

};






.CPP file



CXTSplitterWndEx2::CXTSplitterWndEx2()

{

    m_crTopLeft = RGB(255, 255, 255);

    m_crBottomRight = RGB(173, 170, 156);

    m_crInside = RGB(239, 235, 222);

    m_nMin = m_nMax = 0;

}



void CXTSplitterWndEx2::SetMinMax(UINT nMin, UINT nMax)

{

    m_nMin = nMin;

    m_nMax = nMax;

}



void CXTSplitterWndEx2::SetColors(COLORREF crTL, COLORREF crBR, COLORREF crInside)

{

    m_crTopLeft = crTL;

    m_crBottomRight = crBR;

    m_crInside = crInside;

}



void CXTSplitterWndEx2::StartTracking(int ht)

{

    CXTSplitterWndEx::StartTracking(ht);



    // horizontal splitter, undocumented Microsoft values

    if (ht >= 101 && ht <= 115) 

    {

        m_rectLimit.top += m_nMin;

        if (m_nMax != 0)

            m_rectLimit.bottom -= (m_rectLimit.bottom - m_nMax);

    }

    // vertical splitter, undocumented Microsoft values

    else if (ht >= 201 && ht <= 215)

    {

        m_rectLimit.left += m_nMin;

        if (m_nMax != 0)

            m_rectLimit.right -= (m_rectLimit.bottom - m_nMax);

    }

}



void CXTSplitterWndEx2::OnDrawSplitter(CDC* pDC, ESplitType nType, const CRect& rectArg)

{

    if (pDC == NULL)

    {

        RedrawWindow(rectArg, NULL, RDW_INVALIDATE | RDW_NOCHILDREN);

        return;

    }



    ASSERT_VALID(pDC);



    if (nType == splitBar)

    {

        CRect    rect = rectArg;

        // Draw outside of rectangle.

        pDC->Draw3dRect(rect, m_crTopLeft, m_crBottomRight);

        rect.InflateRect(-GetSystemMetrics(SM_CXBORDER), -GetSystemMetrics(SM_CYBORDER));

        // Draw inside of rectangle.

        pDC->FillSolidRect(rect, m_crInside);

        return;

    }

}