3dtext~2.cpp

visual c++ 时尚编程百例 全部源代码

// 3DtextBtn.cpp : implementation file
//

#include "stdafx.h"
#include "3DText.h"
#include "3DtextBtn.h"

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

/////////////////////////////////////////////////////////////////////////////
// C3DtextBtn

C3DtextBtn::C3DtextBtn()
{
}

C3DtextBtn::~C3DtextBtn()
{
}


BEGIN_MESSAGE_MAP(C3DtextBtn, CButton)
	//{{AFX_MSG_MAP(C3DtextBtn)
	ON_WM_ERASEBKGND()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// C3DtextBtn message handlers

void C3DtextBtn::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	CDC*pDC=CDC::FromHandle(lpDrawItemStruct->hDC);
	ASSERT_VALID(pDC);
	CRect rectClient=lpDrawItemStruct->rcItem;
	Draw(pDC,rectClient,lpDrawItemStruct->itemState);
}

void C3DtextBtn::Draw(CDC *pDC, const CRect &rect, UINT state)
{
	CString text;
	GetWindowText(text);
	int l=text.GetLength();
	CRect rectClient=rect;
	CFont*pFont=GetFont();
	LOGFONT logfont;
	pFont->GetObject(sizeof(LOGFONT),&logfont);
	if(logfont.lfHeight==0)logfont.lfHeight=20;
	logfont.lfWidth=0;
	logfont.lfWeight=1000;
	logfont.lfEscapement=logfont.lfOrientation=0;
	CFont tryfont;
VERIFY(tryfont.CreateFontIndirect(&logfont));
CFont*pFontOld=pDC->SelectObject(&tryfont);
m_bUse3D=TRUE;
if(m_bUse3D)rectClient.DeflateRect(3,3);
CSize textSizeClient=pDC->GetTextExtent(text,1);
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--;
if(m_bUse3D)rectClient.InflateRect(3,3);
CFont font;
font.CreateFontIndirect(&logfont);
pDC->SelectObject(&font);
textSizeClient=pDC->GetTextExtent(text,1);
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=::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;
	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*2,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);
	pDC->TextOut(cx,cy,text);
	pDC->SetTextColor(oldTextColor);
	pDC->SetBkMode(oldBkMode);
	pDC->SelectObject(pFontOld);
}

}

BOOL C3DtextBtn::OnEraseBkgnd(CDC* pDC) 
{
return TRUE;	

}

BOOL C3DtextBtn::PreCreateWindow(CREATESTRUCT& cs) 
{
SetButtonStyle(GetButtonStyle()|BS_OWNERDRAW);	
	return CButton::PreCreateWindow(cs);
}