datareader.cpp

Symbol_MC3000_C#.条码扫码范例程序之5

#include "StdAfx.h"
#include "DataReader.h"
#include "DirectoryMG.h"

DataSet::DataSet(void)
{

}
DataSet::~DataSet(void)
{

}

DataSet & DataSet::operator =(const DataSet & other)
{
	sCodeString = other.sCodeString;
	sLocation = other.sLocation;
	sName = other.sName;

	return (*this);
}
CDataReader::CDataReader(void)
{
	LoadFromFile();
}

CDataReader::~CDataReader(void)
{
	Reset();
}

void CDataReader::LoadFromFile()
{
	CString sBuf;
	CString sTemp;
	CString sFile = CDirectoryMG::GetDataPath();
	CStdioFile file;

	if (file.Open(sFile,CFile::modeRead))
	{
		while (file.ReadString(sTemp) != FALSE)
		{
			sBuf += sTemp;
		}
	}

	if (file.m_hFile != CFile::hFileNull)
	{
		file.Close();
	}

	if (!sBuf.IsEmpty())
	{
		int iRowStart = 0;
		int iEnd;
		CString sRow;
		while ((iEnd = sBuf.Find(_T(","),iRowStart)) != -1)
		{
			sRow = sBuf.Mid(iRowStart,iEnd - iRowStart);
			SplitRow(sRow);
			iRowStart = iEnd + 1;
		}

	}
}

void CDataReader::Reset()
{
	for (int i = 0; i < (int)m_vctDatas.size(); i ++)
	{
		delete m_vctDatas[i];
	}
	m_vctDatas.clear();
}

void CDataReader::SplitRow(CString tsRow)
{
	DataSet *pdata = new DataSet;
	int iStart;
	int iEnd;

	iStart = 0;
	iStart = tsRow.Find(_T("["));
	iEnd = tsRow.Find(_T("]"));

	pdata->sCodeString = tsRow.Mid(iStart+ 1,iEnd - iStart -1 );

	iStart = iEnd + 1;
	iStart = tsRow.Find(_T("["),iStart);
	iEnd = tsRow.Find(_T("]"),iStart);
	pdata->sLocation = tsRow.Mid(iStart + 1,iEnd - iStart -1 );

	iStart = iEnd + 1;
	iStart = tsRow.Find(_T("["),iStart);
	iEnd = tsRow.Find(_T("]"),iStart);
	pdata->sName = tsRow.Mid(iStart+1,iEnd - iStart -1 );

	m_vctDatas.push_back(pdata);
}

void CDataReader::AddDataset(DataSet * tpDataSet)
{
	DataSet * pNew = new DataSet;
	*pNew = *tpDataSet;
	m_vctDatas.push_back(pNew);
}

DataSet * CDataReader::FindDataSetByCode(CString sKey)
{
	DataSet * pFind = NULL;
	for (int i = 0; i < m_vctDatas.size(); i ++)
	{
		if (m_vctDatas[i]->sCodeString.CompareNoCase(sKey) == 0)
		{
			pFind = m_vctDatas[i];
		}
	}

	return pFind;
}

DataSet * CDataReader::FindDataSetByLoacation(CString sKey)
{
	DataSet * pFind = NULL;
	for (int i = 0; i < m_vctDatas.size(); i ++)
	{
		if (m_vctDatas[i]->sLocation.CompareNoCase(sKey) == 0)
		{
			pFind = m_vctDatas[i];
		}
	}

	return pFind;
}