静态文字居中CStatic

1.自定义CStatic
2.实现

//
// 静态文字居中CStatic

#pragma once
// CMultilineStatic

class CMultilineStatic : public CStatic
{
    DECLARE_DYNAMIC(CMultilineStatic)

public:
    CMultilineStatic(COLORREF bgColor, COLORREF textColor, COLORREF m_seprator, CFont* font);
    virtual ~CMultilineStatic();
    virtual void PreSubclassWindow();

    afx_msg void DrawItem(LPDRAWITEMSTRUCT);

    COLORREF m_bgColor;                     //背景艳色
    COLORREF m_textColor;                   //文体颜色
    COLORREF m_seprator;                    //分割线颜色
    CFont*   m_font;                        //字体

protected:
    DECLARE_MESSAGE_MAP()
};

// MultilineStatic.cpp : 实现文件
// 静态文字居中CStatic

#include "stdafx.h"
#include "MultilineStatic.h"
#include "Resource.h"


// CMultilineStatic

IMPLEMENT_DYNAMIC(CMultilineStatic, CStatic)

CMultilineStatic::CMultilineStatic(COLORREF bgColor, COLORREF textColor, COLORREF seprator, CFont* font)
{
    m_bgColor = bgColor;
    m_textColor = textColor;
    m_seprator = seprator;
    m_font = font;
}

CMultilineStatic::~CMultilineStatic()
{
}

void CMultilineStatic::PreSubclassWindow()  
{  
    // TODO: 在此添加专用代码和/或调用基类  
    DWORD dwStyle = GetStyle(); 
    SetWindowLong(GetSafeHwnd(),GWL_STYLE,dwStyle | SS_OWNERDRAW  ); 
    CStatic::PreSubclassWindow(); 
}  

BEGIN_MESSAGE_MAP(CMultilineStatic, CStatic)
END_MESSAGE_MAP()



// CMultilineStatic 消息处理程序



void CMultilineStatic::DrawItem(LPDRAWITEMSTRUCT)  
{  

    CRect temp; 
    GetWindowRect(&temp); 
    ScreenToClient(&temp); 
    CRect rcWnd = temp; 
    CString strText; 
    GetWindowText(strText); 


    CDC *pdc = GetWindowDC(); 
    CDC dcMem; 
    dcMem.CreateCompatibleDC(pdc); 
    CBitmap bmpBg; 
    bmpBg.CreateCompatibleBitmap(pdc,rcWnd.Width(),rcWnd.Height()); 
    dcMem.SelectObject(&bmpBg); 
    dcMem.SetBkMode(TRANSPARENT); 
    dcMem.SetTextColor(m_textColor); 
    CBrush brush(m_bgColor);
    dcMem.FillRect(&rcWnd, &brush);

    dcMem.SelectObject(m_font);
    int height = dcMem.DrawText(strText,temp, DT_WORDBREAK | DT_CALCRECT | DT_EDITCONTROL); // 得到文本高度 
    rcWnd.OffsetRect(0,(rcWnd.Height()-height)/2); 
    dcMem.DrawText(strText,rcWnd, DT_CENTER | DT_WORDBREAK | DT_VCENTER); 

    BLENDFUNCTION bf = {0}; 
    bf.AlphaFormat = AC_SRC_OVER ; 
    bf.BlendFlags = 0; 
    bf.BlendOp = AC_SRC_OVER ; 
    bf.SourceConstantAlpha = 255; 
    pdc->AlphaBlend(0,0,rcWnd.Width(),rcWnd.Height(),&dcMem,0,0,rcWnd.Width(),rcWnd.Height(),bf); 

    ReleaseDC(pdc); 
}

3.使用（垂直居中则需使用\n）

CMultilineStatic* pCheckStatic = new CMultilineStatic(m_clrStatic, clrBlack, RGB(115,159,220), &m_fontstatic);
    pCheckStatic->Create(_T("检\n测\n设\n置"),SS_OWNERDRAW,CRect(0,58,50,58*4+1), this);
    pCheckStatic->ShowWindow(SW_SHOW);