mylistctrl.cpp

串口编程源代码.rar

// MyListCtrl.cpp : implementation file
//

#include "stdafx.h"
#include "serialportvxd.h"
#include "MyListCtrl.h"
#include "SerialPortVxDDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyListCtrl

CMyListCtrl::CMyListCtrl()
{
}

CMyListCtrl::~CMyListCtrl()
{
}


BEGIN_MESSAGE_MAP(CMyListCtrl, CListCtrl)
	//{{AFX_MSG_MAP(CMyListCtrl)
	ON_NOTIFY_REFLECT(LVN_DELETEITEM, OnDeleteitem)
	ON_WM_MEASUREITEM_REFLECT()
	ON_WM_ERASEBKGND()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyListCtrl message handlers

void CMyListCtrl::OnDeleteitem(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;
	// TODO: Add your control notification handler code here
	delete (CListRecord *)pNMListView->lParam;
	*pResult = 0;
}

void CMyListCtrl::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct) 
{
	CDC dc;
	dc.CreateCompatibleDC(NULL);
	CFont *oldFont = dc.SelectObject(&((CSerialPortVxDDlg *)GetParent())->m_fontTrace);
	CSize te = dc.GetTextExtent( "0", 1 );
	lpMeasureItemStruct->itemHeight = ((CSerialPortVxDDlg *)GetParent())->m_nCharHeight = te.cy - 2;
	((CSerialPortVxDDlg *)GetParent())->m_nCharWidth = te.cx;
	lpMeasureItemStruct->itemWidth = ((CSerialPortVxDDlg *)GetParent())->m_nCharWidth * 95;
}

void CMyListCtrl::DrawItem( LPDRAWITEMSTRUCT lpDrawItemStruct )
{
	int index = lpDrawItemStruct->itemID;
	TRACE("%d\n", index );
	if ( index < 0 )
		return;

	int y = lpDrawItemStruct->rcItem.top;

	HDC hDC = lpDrawItemStruct->hDC;
	HFONT oldFont = (HFONT)::SelectObject( hDC, (HFONT)((CSerialPortVxDDlg *)GetParent())->m_fontTrace );
	int oldBkMode = ::SetBkMode( hDC, OPAQUE );
	COLORREF oldTextColor = ::SetTextColor( hDC, RGB(0,0,0) );
	COLORREF oldBkColor = ::SetBkColor( hDC, RGB(255,255,255) );

	CListRecord *pRec = (CListRecord *)lpDrawItemStruct->itemData;
	CString str;
	for ( int i=0; i<(int)pRec->m_dwLength; i++ )
		{
		if ( pRec->m_pwData[i] & 0xFF00 )
			{
			::SetTextColor( hDC, RGB(0,0,0) );
			::SetBkColor( hDC, RGB(255,255,255) );
			}
		else
			{
			::SetTextColor( hDC, RGB(255,255,255) );
			::SetBkColor( hDC, RGB(0,0,0) );
			}
		str.Format( "%2.2X ", pRec->m_pwData[i] & 0x00FF );
		::TextOut( hDC, ((CSerialPortVxDDlg *)GetParent())->m_nCharWidth*3*i, y, str, 3 );
		}
	::SetTextColor( hDC, RGB(0,0,0) );
	::SetBkColor( hDC, RGB(255,0,0) );
	for ( ; i<32; i++ )
		::TextOut( hDC, ((CSerialPortVxDDlg *)GetParent())->m_nCharWidth*3*i, y, "   ", 3 );

	::SetTextColor( hDC, oldTextColor );
	::SetBkColor( hDC, oldBkColor );
	::SetBkMode( hDC, oldBkMode );
	::SelectObject( hDC, oldFont );
}


BOOL CMyListCtrl::OnEraseBkgnd(CDC* pDC) 
{
	if ( ! GetItemCount() )
		return CListCtrl::OnEraseBkgnd( pDC );
	return TRUE;
}