ttyview.cpp

VC_serial_Port_Program

// 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();
	ASSERT_VALID(pDoc);

	char c = (char)nChar;

	if (!pDoc->m_bConnected)
	{
		return ;
	}

	pDoc->WriteComm(&c, 1);

	if (pDoc->m_bEcho)
	{
		CEditView::OnChar(nChar, nRepCnt, nFlags);  //本地回显
	}

	CEditView::OnChar(nChar, nRepCnt, nFlags);
}

LRESULT CTTYView::OnCommNotify(WPARAM wParam, LPARAM lParam)
{
	char buf[MAXBLOCK/4];
	CString str;
	int nLength, nTextLength;
	CTTYDoc* pDoc = GetDocument();

	CEdit& edit = GetEditCtrl();

	if (!pDoc->m_bConnected || (wParam & EV_RXCHAR) != EV_RXCHAR)
	{
		SetEvent(pDoc->m_hPostMsgEvent);
		return 0;
	}

	nLength = pDoc->ReadComm(buf, 100);

	if (nLength)
	{
		nTextLength = edit.GetWindowTextLength();
		edit.SetSel(nTextLength, nTextLength);

		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);
				nTextLength = edit.GetWindowTextLength();
				edit.SetSel(nTextLength - 1, nTextLength);
				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;
}