ttyview.cpp

本代码主要实现串口程序的仿真与演示

// TTYView.cpp : implementation of the CTTYView class
//

#include "stdafx.h"
#include "TTY.h"


#include "TTYDoc.h"
#include "TTYView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CTTYView

IMPLEMENT_DYNCREATE(CTTYView, CEditView)

BEGIN_MESSAGE_MAP(CTTYView, CEditView)
	//{{AFX_MSG_MAP(CTTYView)
	ON_WM_CHAR()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CEditView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CEditView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CEditView::OnFilePrintPreview)
	ON_MESSAGE(WM_COMMNOTIFY,OnCommNotify)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTTYView construction/destruction

CTTYView::CTTYView()
{
	// TODO: add construction code here

}

CTTYView::~CTTYView()
{
}

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

	BOOL bPreCreated = CEditView::PreCreateWindow(cs);
	cs.style &= ~(ES_AUTOHSCROLL|WS_HSCROLL);	// Enable word-wrapping

	return bPreCreated;
}

/////////////////////////////////////////////////////////////////////////////
// CTTYView drawing

void CTTYView::OnDraw(CDC* pDC)
{
	CTTYDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
}

/////////////////////////////////////////////////////////////////////////////
// CTTYView printing

BOOL CTTYView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default CEditView preparation
	return CEditView::OnPreparePrinting(pInfo);
}

void CTTYView::OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo)
{
	// Default CEditView begin printing.
	CEditView::OnBeginPrinting(pDC, pInfo);
}

void CTTYView::OnEndPrinting(CDC* pDC, CPrintInfo* pInfo)
{
	// Default CEditView end printing
	CEditView::OnEndPrinting(pDC, pInfo);
}

/////////////////////////////////////////////////////////////////////////////
// CTTYView diagnostics

#ifdef _DEBUG
void CTTYView::AssertValid() const
{
	CEditView::AssertValid();
}

void CTTYView::Dump(CDumpContext& dc) const
{
	CEditView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CTTYView message handlers

void CTTYView::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	CTTYDoc*pDoc=GetDocument();
	char c=(char)nChar;
	if(!pDoc->m_bConnected)
		return;
	pDoc->WriteComm(&c,1);
	if(pDoc->m_bEcho)
			CEditView::OnChar(nChar, nRepCnt, nFlags);
}
LRESULT CTTYView::OnCommNotify(WPARAM wParam,LPARAM lParam)
{ char buf[MAXBLOCK/4];
   CString str;
   int nLength,nTextLenth;
 CTTYDoc*pDoc=GetDocument();
 CEdit &edit=GetEditCtrl();
 if(!pDoc->m_bConnected ||(wParam &EV_RXCHAR)!=EV_RXCHAR)
 {SetEvent(pDoc->m_hPostMsgEvent);
 return 0L;
 }
 nLength=pDoc->ReadComm(buf,100);
 if(nLength)
 {nTextLenth=edit.GetWindowTextLength();
   edit.SetSel(nTextLenth,nTextLenth);
   for(int i=0;i<=nLength;i++)
   { switch(buf[i])
   {case '\r' :
      if(!pDoc->m_bNewLine)
		  break;
	  case '\n' :
		  str+="\r\n";
		  break;
	  case '\b' :
		  edit.SetSel(-1,0);
		  edit.ReplaceSel(str);
		  nTextLenth=edit.GetWindowTextLength();
		  edit.SetSel(nTextLenth-1,nTextLenth);
		  edit.ReplaceSel(" ");
		  str=" ";
		  break;
	  case '\a' :
		  MessageBeep((UINT)-1);
		   break;
	  default:
		  str+=buf[i];}
   }
        edit.SetSel(-1,0);
        edit.ReplaceSel(str);
 }
   SetEvent(pDoc->m_hPostMsgEvent);
   return 0L;
}