calendarlog.cpp

wince5.0下的计算器程序,对初学wince的朋友很有帮助,arm9平台下的

#include "StdAfx.h"
#include "CalendarLog.h"

const LPCTSTR crlogpath=TEXT("\\AdbFlashDisk\\systemdata\\calendar.log");

CJCRLog::~CJCRLog()
{
}

CJCRLog::CJCRLog()
{
}

CString CJCRLog::GetCalendarDateStr()
{
	CString strdlist=TEXT("");
	CString temp=TEXT("");
	CRLog lgtemp;
	for (int i=0;i<crlist.GetCount();i++)
	{
		ZeroMemory(&lgtemp,sizeof(CRLog));
		POSITION pos=crlist.FindIndex(i);
		lgtemp=crlist.GetAt(pos);
		temp.Format(TEXT("%s |"),lgtemp.redate);
		strdlist+=temp;
	}
	return strdlist;
}

BOOL CJCRLog::CAFind(CRLog &fdata, int findex)
{
	CRLog temp;
	bool blfind=FALSE;
	for(int i=crlist.GetCount()-1;i>=0;i--)
	{
		ZeroMemory(&temp, sizeof(CRLog));
		POSITION pos=crlist.FindIndex(i);
		if (pos==NULL)
		{
			continue;
		}
		temp=crlist.GetAt(pos);
		if (temp.LID==findex)
		{
			//已经找到
			blfind=TRUE;
			fdata=temp;
			break;
		}
	}
	return blfind;
}

BOOL CJCRLog::AddLog(CRLog newdata)
{
	//填加到链表中
	crlist.AddHead(newdata);
	//保存到文件
	return SaveListInFile();
}

BOOL CJCRLog::SaveListInFile()
{
	CFile wfile;
	if (wfile.Open(crlogpath,CFile::modeWrite|CFile::modeCreate)==0)
		return FALSE;
	CRLog temp;
	for (int i=crlist.GetCount()-1;i>=0;i--)
	{
		ZeroMemory(&temp, sizeof(CRLog));
		POSITION pos=crlist.FindIndex(i);
		temp=crlist.GetAt(pos);
		wfile.Write(&temp,sizeof(CRLog));
	}
	wfile.Close();
	return TRUE;
}

BOOL CJCRLog::DelLog(int ndel)
{
	CRLog temp;
	BOOL bldel=FALSE;
	for (int i=crlist.GetCount()-1;i>=0;i--)
	{
		ZeroMemory(&temp, sizeof(CRLog));
		POSITION pos=crlist.FindIndex(i);
		temp=crlist.GetAt(pos);
		if (temp.LID==ndel)
		{
			//找到需要删除的
			crlist.RemoveAt(pos);
			bldel=TRUE;
			break;
		}
	}
	if (bldel)
	{
		bldel=SaveListInFile();
	}
	return bldel;
}

BOOL CJCRLog::CAReplace(int nrep, CRLog newdata)
{
	CRLog temp;
	BOOL blrep=FALSE;
	for (int i=crlist.GetCount()-1;i>=0;i++)
	{
		ZeroMemory(&temp, sizeof(CRLog));
		POSITION pos=crlist.FindIndex(i);
		temp=crlist.GetAt(pos);
		if (temp.LID==nrep)
		{
			crlist.SetAt(pos,newdata);
			blrep=TRUE;
			break;
		}
	}
	if (blrep)
	{
		blrep=SaveListInFile();
	}
	return blrep;
}

BOOL CJCRLog::InitCalendarInof()
{
	CFile rfile;
	if (!rfile.Open(crlogpath,CFile::modeRead))
	{
		return FALSE;
	}

	CRLog temp;
	crlist.RemoveAll();
	while(rfile.Read(&temp,sizeof(CRLog))>0)
	{
		crlist.AddHead(temp);
	}
	rfile.Close();
	return TRUE;
}

int CJCRLog::GetFreeID()
{
	int ntemp=-1;
	CRLog ltemp;
	BOOL blfind;
	if (crlist.GetCount()==0)
	{
		return 1;
	}
	for (int i=0;i<crlist.GetCount();i++)
	{
		blfind=FALSE;
		for(int n=0;n<crlist.GetCount();n++)
		{
			ZeroMemory(&ltemp, sizeof(CRLog));
			POSITION pos=crlist.FindIndex(n);
			ltemp=crlist.GetAt(pos);
			if (ltemp.LID==(i+1))
			{
				blfind=TRUE;
				break;
			}
		}
		if (!blfind)
		{
			//找到可以用的
			ntemp=i+1;
			break;
		}
	}
	if (ntemp==-1)
	{
		ntemp=crlist.GetCount()+1;
	}
	return ntemp;
}

int CJCRLog::GetLogNumCount()
{
	return crlist.GetCount();
}

BOOL CJCRLog::FindForIndex(CRLog &redata, int nindex)
{
	CRLog temp;
	bool blfind=FALSE;
	ZeroMemory(&temp, sizeof(CRLog));
	POSITION pos=crlist.FindIndex(nindex);
	if (pos!=NULL)
	{
		temp=crlist.GetAt(pos);
		redata=temp;
		blfind=TRUE;
	}
	else
	{
		blfind=FALSE;
	}
	return blfind;
}