newbutton.cpp

vc计算器 有 二进制

// NewButton.cpp : implementation file
//

#include "Stdafx.h"
#include "Calculator.h"
#include "NewButton.h"

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

/////////////////////////////////////////////////////////////////////////////
// CNewButton

CNewButton::CNewButton()
{
	bHighlight = bLBtnDown = false;
	m_brush.CreateStockObject(HOLLOW_BRUSH);
	hHand = AfxGetApp()->LoadCursor(IDC_HANDCUR);
}

CNewButton::~CNewButton()
{
}


BEGIN_MESSAGE_MAP(CNewButton, CButton)
	//{{AFX_MSG_MAP(CNewButton)
	ON_WM_MOUSEMOVE()
	ON_WM_SETCURSOR()
	ON_WM_TIMER()
	ON_WM_LBUTTONUP()
	ON_WM_LBUTTONDOWN()
	ON_WM_ERASEBKGND()
	ON_WM_CTLCOLOR_REFLECT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CNewButton message handlers



void CNewButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	// 获取一个CDC指针
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
	//定义按钮区域并初始化
	CRect rect(lpDrawItemStruct->rcItem);
	//初始化按钮状态
	UINT state = lpDrawItemStruct->itemState;
	CString strText;
	GetWindowText(strText);

	if (state & ODS_SELECTED)
	{
		//按下按钮
		pDC->Draw3dRect(rect,GetSysColor(COLOR_3DSHADOW), GetSysColor(COLOR_3DHILIGHT));
	}
	else
	{
		//未按下按钮
		pDC->Draw3dRect(rect,GetSysColor(COLOR_3DHILIGHT),GetSysColor(COLOR_3DSHADOW));
	}
	pDC->DrawText(strText, rect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
	
}

//定制的消息处理函数
void CNewButton::OnMouseMove(UINT nFlags, CPoint point) 
{
	//设置一个定时器
	SetTimer(1,10,NULL);
	
	CButton::OnMouseMove(nFlags, point);
}

//当鼠标光标移到按钮上时，改变光标的形象
BOOL CNewButton::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) 
{
	if (bHighlight) 
	{
		::SetCursor(hHand);
		return true;
	}
	
	return CButton::OnSetCursor(pWnd, nHitTest, message);
}

//处理WM_TIMER消息
void CNewButton::OnTimer(UINT nIDEvent) 
{
	static bool pPainted = false;
	POINT pt;
	GetCursorPos(&pt);
	CRect rect;
	GetWindowRect (rect);
	if (bLBtnDown)	
	{		
		KillTimer (1);
		if (pPainted) InvalidateRect (NULL);		
		pPainted = FALSE;		
		return;	
	}

	if (!rect.PtInRect (pt))	
	{		
		bHighlight = false;
		KillTimer (1);

		if (pPainted)			
			InvalidateRect(NULL);

		pPainted = false;
		return;	
	}
	else
	{
		bHighlight = true;
		if (!pPainted)
		{
			pPainted = true;
			InvalidateRect(NULL);
		}
	}

	CButton::OnTimer(nIDEvent);
}

//当按下按钮又放开时调用这个函数
void CNewButton::OnLButtonUp(UINT nFlags, CPoint point) 
{
	bLBtnDown = false;
	if (bHighlight)	
	{
		bHighlight = false;
		InvalidateRect(NULL);
	}
	CButton::OnLButtonUp(nFlags, point);
}

//当按下按钮时调用这个函数
void CNewButton::OnLButtonDown(UINT nFlags, CPoint point) 
{
	bLBtnDown = true;
	CButton::OnLButtonDown(nFlags, point);
}

BOOL CNewButton::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default

	return CButton::OnEraseBkgnd(pDC);
}

HBRUSH CNewButton::CtlColor(CDC* pDC, UINT nCtlColor) 
{
	// TODO: Change any attributes of the DC here
	pDC->SetTextColor(RGB(0,0,255));
	pDC->SetBkMode (TRANSPARENT);
	return m_brush;
}