outputwindow.cpp

这个也是我们的毕业设计课题

// OutputWindow.cpp : implementation file
//

#include "stdafx.h"
#include "DFYSimulator.h"
#include "OutputWindow.h"

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

/////////////////////////////////////////////////////////////////////////////
// COutputWindow

IMPLEMENT_DYNCREATE(COutputWindow, CMDIChildWnd)

COutputWindow::COutputWindow()
{
	m_scrollRange=8;
	m_nContentNum=0;
	m_nFirstVisualPos=0;

}

COutputWindow::~COutputWindow()
{
}


BEGIN_MESSAGE_MAP(COutputWindow, CMDIChildWnd)
	//{{AFX_MSG_MAP(COutputWindow)
	ON_WM_CLOSE()
	ON_WM_VSCROLL()
	ON_WM_CREATE()
	ON_WM_PAINT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// COutputWindow message handlers

void COutputWindow::OnClose() 
{
	//change the menu to MainFrame Menu
	
	CMDIChildWnd::OnClose();
}

void COutputWindow::ShowState(CString strState)
{
	//set scroll range
	SetScrollRange(SB_VERT,0,m_scrollRange);
	if(m_nContentNum<8)
		m_scrollRange=8;
	else
	{
		m_scrollRange++;
	}
	if(m_scrollRange>200)
		m_scrollRange=200;
	//set content
	m_strContent[m_nContentNum]=strState;//set the content
	
	//show the content
	int nScrPos=m_scrollRange-8;
	if(nScrPos<0)
	nScrPos=0;
	SetScrollPos(SB_VERT,nScrPos);
	int nPos=1;
	CClientDC dc(this);
	//clear the window content
	CRect rect;
	GetClientRect(&rect);
	CBrush whiteSolidBrush(RGB(255,255,255));
	dc.FillRect(&rect,&whiteSolidBrush);
	//show the recent 8 lines
	int temp=m_nContentNum-5;
	if(temp<0)
		temp=0;
	for(int i=temp;i<=m_nContentNum;i++)
	{
		dc.TextOut(3,nPos,m_strContent[i]);
		nPos+=16;
	}
	m_nContentNum++;
	if(m_nContentNum>=1024)
		m_nContentNum=0;
}
void COutputWindow::ResetContent()
{
	for(int i=0;i<m_nContentNum;i++)//delete the content
		m_strContent[i].Delete(0,m_strContent[i].GetLength());
	m_scrollRange=8;
	m_nContentNum=0;
	m_nFirstVisualPos=0;
	//clear the window content
	CRect rect;
	GetClientRect(&rect);
	CBrush whiteSolidBrush(RGB(255,255,255));
	CClientDC dc(this);
	dc.FillRect(&rect,&whiteSolidBrush);
}

void COutputWindow::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	m_nFirstVisualPos=GetScrollPos(SB_VERT);
	switch(nSBCode)
	{
	case SB_LINEDOWN:
		m_nFirstVisualPos+=1;
		break;
	case SB_LINEUP:
		m_nFirstVisualPos-=1;
		break;
	case SB_PAGEDOWN:
		m_nFirstVisualPos+=8;
		break;
	case SB_PAGEUP:
		m_nFirstVisualPos-=8;
		break;
	case SB_THUMBPOSITION:
		m_nFirstVisualPos=nPos;
		break;
	case SB_THUMBTRACK:
		m_nFirstVisualPos=nPos;
		break;
	default :
		break;
	}
	if(m_nFirstVisualPos>999)
		m_nFirstVisualPos=999;
	if(m_nFirstVisualPos<0)
		m_nFirstVisualPos=0;
	SetScrollPos(SB_VERT,m_nFirstVisualPos);
	FlushShow();
	CMDIChildWnd::OnVScroll(nSBCode, nPos, pScrollBar);
}
int COutputWindow::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CMDIChildWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	SetScrollRange(SB_VERT,0,8);
	
	return 0;
}

void COutputWindow::FlushShow()
{
	//clear the window content
	CRect rect;
	GetClientRect(&rect);
	CBrush whiteSolidBrush(RGB(255,255,255));
	CClientDC dc(this);
	dc.FillRect(&rect,&whiteSolidBrush);
	//show the content
	int nPos=1;
	for(int i=m_nFirstVisualPos;i<m_nFirstVisualPos+8;i++)
	{
		dc.TextOut(3,nPos,m_strContent[i]);
		nPos+=16;
	}
	
}

void COutputWindow::OnPaint() 
{
	CPaintDC dc(this); // device context for painting
	
	FlushShow();	
	// Do not call CMDIChildWnd::OnPaint() for painting messages
}