displaymousemsgview.cpp

VisualC高级编程技术精粹.rar

// DisplayMouseMsgView.cpp : implementation of the CDisplayMouseMsgView class
//

#include "stdafx.h"
#include "DisplayMouseMsg.h"

#include "DisplayMouseMsgDoc.h"
#include "DisplayMouseMsgView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDisplayMouseMsgView

IMPLEMENT_DYNCREATE(CDisplayMouseMsgView, CView)

BEGIN_MESSAGE_MAP(CDisplayMouseMsgView, CView)
	//{{AFX_MSG_MAP(CDisplayMouseMsgView)
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	ON_WM_MOUSEWHEEL()
	ON_WM_RBUTTONDOWN()
	ON_WM_RBUTTONUP()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDisplayMouseMsgView construction/destruction

CDisplayMouseMsgView::CDisplayMouseMsgView()
{
	// TODO: add construction code here
	m_nCnt = 0;
	m_nAction = 0;
}

CDisplayMouseMsgView::~CDisplayMouseMsgView()
{
}

BOOL CDisplayMouseMsgView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CDisplayMouseMsgView drawing

void CDisplayMouseMsgView::OnDraw(CDC* pDC)
{
	CDisplayMouseMsgDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	pDC->SetBkColor(RGB(255,255,255)); // 设置背景色
	pDC->SetTextColor(RGB(255,0,0)); // 设置前景色

	// 在客户区显示信息
	pDC->TextOut(0, 
		         0, 
		         _T("本程序的功能:测试用户的鼠标事件"));

	// 获得当前客户区的矩形区域
	CRect rc;
	GetClientRect(&rc);
	
	int centerX = (rc.left + rc.right)/2;
	int centerY = (rc.top + rc.bottom)/2;

	switch (m_nAction)
	{
	case 1:
		pDC->SetBkColor(RGB(0,0,0));
		pDC->SetTextColor(RGB(255,255,0));
		pDC->TextOut(centerX, centerY, _T("你当前按下的是鼠标左键!"));
		break;
	case 2:
		pDC->SetBkColor(RGB(0,255,0));
		pDC->SetTextColor(RGB(0,0,255));
		pDC->TextOut(centerX, centerY, _T("你当前松开的是鼠标左键!"));
		break;
	case 3:
		pDC->SetBkColor(RGB(0,255,255));
		pDC->SetTextColor(RGB(255,0,0));
		pDC->TextOut(centerX, centerY, _T("你当前移动鼠标了!"));
		break;
	case 4:
		pDC->SetBkColor(RGB(0,0,0));
		pDC->SetTextColor(RGB(255,255,255));
		pDC->TextOut(centerX, centerY, _T("你当前拨动鼠标滚轮了!"));
		break;
	case 5:
		pDC->SetBkColor(RGB(0,255,255));
		pDC->SetTextColor(RGB(255,0,0));
		pDC->TextOut(centerX, centerY, _T("你当前按下的是鼠标右键!"));
		break;
	case 6:
		pDC->SetBkColor(RGB(0,255,255));
		pDC->SetTextColor(RGB(255,0,0));
		pDC->TextOut(centerX, centerY, _T("你当前松开的是鼠标右键!"));
		break;
	default:
		break;
	}
}

/////////////////////////////////////////////////////////////////////////////
// CDisplayMouseMsgView printing

BOOL CDisplayMouseMsgView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CDisplayMouseMsgView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CDisplayMouseMsgView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CDisplayMouseMsgView diagnostics

#ifdef _DEBUG
void CDisplayMouseMsgView::AssertValid() const
{
	CView::AssertValid();
}

void CDisplayMouseMsgView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CDisplayMouseMsgDoc* CDisplayMouseMsgView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CDisplayMouseMsgDoc)));
	return (CDisplayMouseMsgDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CDisplayMouseMsgView message handlers

void CDisplayMouseMsgView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_nAction = 1;

	CPaintDC dc(this); // device context for painting
	OnDraw(&dc);
	Invalidate();

	CView::OnLButtonDown(nFlags, point);
}

void CDisplayMouseMsgView::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_nAction = 2;

	CPaintDC dc(this); // device context for painting
	OnDraw(&dc);
	Invalidate();

	CView::OnLButtonUp(nFlags, point);
}

void CDisplayMouseMsgView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_nAction = 3;

	CPaintDC dc(this); // device context for painting
	OnDraw(&dc);
	Invalidate();

	CView::OnMouseMove(nFlags, point);
}

BOOL CDisplayMouseMsgView::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt) 
{
	// TODO: Add your message handler code here and/or call default
	m_nAction = 4;

	CPaintDC dc(this); // device context for painting
	OnDraw(&dc);
	Invalidate();

	return CView::OnMouseWheel(nFlags, zDelta, pt);
}

void CDisplayMouseMsgView::OnRButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_nAction = 5;

	CPaintDC dc(this); // device context for painting
	OnDraw(&dc);
	Invalidate();

	CView::OnRButtonDown(nFlags, point);
}

void CDisplayMouseMsgView::OnRButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_nAction = 6;

	CPaintDC dc(this); // device context for painting
	OnDraw(&dc);
	Invalidate();

	CView::OnRButtonUp(nFlags, point);
}