buttonlr.cpp

简单的演示示波器

// ButtonLR.cpp : implementation file
//

#include "stdafx.h"
#include "shiboqi.h"
#include "ButtonLR.h"

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

/////////////////////////////////////////////////////////////////////////////
// CButtonLR

CButtonLR::CButtonLR()
{
	m_bState=FALSE;
}

CButtonLR::~CButtonLR()
{
}


BEGIN_MESSAGE_MAP(CButtonLR, CButton)
	//{{AFX_MSG_MAP(CButtonLR)
	ON_WM_LBUTTONUP()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CButtonLR message handlers

void CButtonLR::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	CDC* pDC=CDC::FromHandle(lpDrawItemStruct->hDC);
	CRect rect=lpDrawItemStruct->rcItem;
	GetWindowText(m_strCaption);
	BITMAP bmp;
	CDC memDC;
	CFont newFont;
//	newFont.
	memDC.CreateCompatibleDC(pDC);
	if(!m_bState)
	{
		CBitmap bitmap;
		bitmap.LoadBitmap(IDB_UP);
		CBitmap* OldBitmap=memDC.SelectObject(&bitmap);
		bitmap.GetBitmap(&bmp);
		pDC->StretchBlt(rect.left,rect.top,rect.right,rect.bottom,&memDC,0,0,
			               bmp.bmWidth,bmp.bmHeight,SRCCOPY);
		OldBitmap=pDC->SelectObject(OldBitmap);
//		OldBitmap.DeleteObject();
		newFont.CreateFont(15,0,0,0,550,0,0,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
		               DEFAULT_QUALITY,DEFAULT_PITCH&FF_SWISS,"宋体");
		CFont* OldFont=pDC->SelectObject(&newFont);
		pDC->SetBkMode(TRANSPARENT);
    	pDC->SetTextColor(RGB(128,255,128));
	    pDC->DrawText(m_strCaption,&rect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
		pDC->SelectObject(OldFont);
		pDC->DeleteDC();
	}
	else
	{
		CBitmap bitmap;
		bitmap.LoadBitmap(IDB_DOWN);
		CBitmap* OldBitmap=memDC.SelectObject(&bitmap);
		bitmap.GetBitmap(&bmp);
		pDC->StretchBlt(rect.left,rect.top,rect.right,rect.bottom,&memDC,0,0,
			               bmp.bmWidth,bmp.bmHeight,SRCCOPY);
		OldBitmap=pDC->SelectObject(OldBitmap);
//		OldBitmap.DeleteObject();
		newFont.CreateFont(15,0,0,0,550,0,0,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,
		               DEFAULT_QUALITY,DEFAULT_PITCH&FF_SWISS,"宋体");
		CFont* OldFont=pDC->SelectObject(&newFont);
		pDC->SetBkMode(TRANSPARENT);
    	pDC->SetTextColor(RGB(255,255,255));
	    pDC->DrawText(m_strCaption,&rect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
		pDC->SelectObject(OldFont);
		pDC->DeleteDC();
	}
		memDC.DeleteDC();

}

void CButtonLR::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	Invalidate();
	CButton::OnLButtonUp(nFlags, point);
}