mytextbutton.cpp

这个还可以

// MyTextButton.cpp : implementation file
//

#include "stdafx.h"
 
#include "MyTextButton.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMyTextButton



BEGIN_MESSAGE_MAP(CMyTextButton, CButton)  
   //{{AFX_MSG_MAP(CMyTextButton)
     ON_WM_DRAWITEM()   
	 ON_WM_ERASEBKGND()   
	 //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyTextButton message handlers
void CMyTextButton::PreSubclassWindow() 
{
     SetButtonStyle(GetButtonStyle() | BS_OWNERDRAW);
}
void CMyTextButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
     CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);     
	 ASSERT_VALID(pDC);
     CRect rectClient = lpDrawItemStruct->rcItem;
     Draw(pDC,rectClient, lpDrawItemStruct->itemState);
}
void CMyTextButton::Draw(CDC* pDC, const CRect& rect, UINT state) {
     CString text; GetWindowText(text);     
	 int l = text.GetLength();
     CRect rectClient = rect;     // get font from control
     CFont* pFont = GetFont();
     // ensure we have a valid height and width and select the font
     LOGFONT logfont; 
	 pFont->GetObject(sizeof(LOGFONT),&logfont);
     if (logfont.lfHeight == 0) logfont.lfHeight = 20;
     logfont.lfWidth = 0;     // 0 so it will be calculated
     logfont.lfWeight = 1000;
     logfont.lfEscapement = logfont.lfOrientation = 0;
     CFont tryfont; 
	 VERIFY(tryfont.CreateFontIndirect(&logfont));
     CFont* pFontOld = pDC->SelectObject(&tryfont);
     // get the control size and adjust font width & height accordingly
     if (m_bUse3D) rectClient.DeflateRect(3,3);
     CSize textSizeClient = pDC->GetTextExtent(text,l);
     if (rectClient.Width()*textSizeClient.cy >
		 rectClient.Height()*textSizeClient.cx) 
	 {
          logfont.lfHeight = ::MulDiv(logfont.lfHeight,rectClient.Height(),textSizeClient.cy);     
	 }
	 else 
	 {
          logfont.lfHeight = ::MulDiv(logfont.lfHeight,rectClient.Width(),textSizeClient.cx);
     }
     logfont.lfHeight--; // fudge factor
     if (m_bUse3D) rectClient.InflateRect(3,3);
     // create adjusted font and select
	 
     CFont font; 
	 font.CreateFont(logfont.lfHeight,0,0,0,1000,0,0,0,
                DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,
                CLIP_DEFAULT_PRECIS,
                DEFAULT_QUALITY,
                DEFAULT_PITCH|FF_DONTCARE,
                m_strFontStyle);     

	 //font.CreateFontIndirect(&logfont);
     pDC->SelectObject(&font);     
	 textSizeClient = pDC->GetTextExtent(text,l);
     int minx = rectClient.left+(rectClient.Width()-textSizeClient.cx)/2;
     int miny = rectClient.top+(rectClient.Height()-textSizeClient.cy)/2;
     int oldBkMode = pDC->SetBkMode(TRANSPARENT);
     COLORREF textcol =COLOR_BTNTEXT; //::GetSysColor((state & ODS_FOCUS) ? COLOR_GRAYTEXT: COLOR_BTNTEXT);
     COLORREF oldTextColor = pDC->SetTextColor(textcol);
     int cx = minx;
     int cy = miny;   
	 if (m_bUse3D) {
          int s = (state & ODS_SELECTED) ? -1 : +1; 
		  cx += 3; 
		  cy += 3;
          // draw 3D highlights
          pDC->SetTextColor(::GetSysColor(COLOR_3DDKSHADOW));
          pDC->TextOut(cx-s*2,cy+s*2,text);
          pDC->TextOut(cx+s*2,cy-s*2,text);
          pDC->TextOut(cx+s*2,cy+s*2,text);
          pDC->SetTextColor(::GetSysColor(COLOR_3DHILIGHT));
          pDC->TextOut(cx+s*1,cy-s*2,text);
          pDC->TextOut(cx-s*2,cy+s*1,text);
          pDC->TextOut(cx-s*2,cy-s*2,text);
          pDC->SetTextColor(::GetSysColor(COLOR_3DSHADOW));
          pDC->TextOut(cx-s*1,cy+s*1,text);
          pDC->TextOut(cx+s*1,cy-s*1,text);
          pDC->TextOut(cx+s*1,cy+s*1,text);
          pDC->SetTextColor(::GetSysColor(COLOR_3DLIGHT));
          pDC->TextOut(cx,cy-s*1,text);          
		  pDC->TextOut(cx-s*1,cy,text);
          pDC->TextOut(cx-s*1,cy-s*1,text);          
		  pDC->SetTextColor(textcol);
     }     // draw the text    
	 pDC->TextOut(cx,cy,text);     // restore DC
     pDC->SetTextColor(oldTextColor);     
	 pDC->SetBkMode(oldBkMode);
     pDC->SelectObject(pFontOld);}
    
BOOL CMyTextButton::OnEraseBkgnd(CDC*) 
{
     return true;    // we don't do any erasing...
	}

CMyTextButton::CMyTextButton()
{
	  m_bUse3D=TRUE;
	  SetFontStyle("system");
}
void CMyTextButton::SetFontStyle(CString str="system")
{
	m_strFontStyle=str;

}