logfile.cpp

停车场用

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "logfile.h"
#include "print.h"
#include "dido.h"
#include "option.h"
#include "datetool.h"
#include "vtl.h"

//设置文本
static void SetEditText(TLogForm *se);
//确认删除日志
static int ShowDeleteLog(void);
//确认打印日志
static int ShowPrintLog(void);
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
//---------------------------------------------------------------------------
__fastcall TLogForm::TLogForm(TComponent* Owner)
        : TForm(Owner)
{
}
//查看日志
int LookLog(TObject *Owner)
 {
  TLogForm *se;
  int rc;

  rc=FALSE;
  se = new TLogForm((TComponent*)Owner);
  if(se!=NULL){
    se->m_nDone=0;
    SetEditText(se);
    se->ShowModal();
    rc=se->m_nDone;
    delete se;
   }
  return(rc);
 }
//设置文本
void SetEditText(TLogForm *se)
 {
  char szFile[MAX_PATH];
  int nCount;

  nCount=0;
  GetLogFilename(szFile,sizeof(szFile)-1);
  try{
    se->m_TextMemo->Lines->LoadFromFile(szFile);
    nCount = se->m_TextMemo->Lines->Count;
   }
  catch(...){
    se->m_TextMemo->Text="";
   }
  se->m_PrintBut->Enabled=nCount;
  se->m_DelBut->Enabled=nCount;
 }
void __fastcall TLogForm::m_PrintButClick(TObject *Sender)
{
 static char pszTitle[]="巡更系统日志";

 if(ShowPrintLog()) //确认打印日志
   PrintEditText(pszTitle,m_TextMemo->Lines);
}
//---------------------------------------------------------------------------

void __fastcall TLogForm::m_DelButClick(TObject *Sender)
{
  if(ShowDeleteLog()){//确认删除日志
    m_TextMemo->Text="";
    m_PrintBut->Enabled=FALSE;
    m_DelBut->Enabled=FALSE;
    DeleteLogFile();
   }
}
//确认删除日志
int ShowDeleteLog(void)
 {
  static char pszText[]="是否真的删除所有日志?";
  int rc;

 //验证用户权限
  rc= ValidateRight(RIGHT_MANAGE);
  if(rc){
    MessageBeep(MB_ICONHAND);
    rc = Application->MessageBox(pszText,GetMainTitle(),
      MB_YESNO|MB_ICONQUESTION|MB_DEFBUTTON2|MB_APPLMODAL);
    if(rc==IDYES)rc=TRUE;
    else rc=FALSE;
   }
  return(rc);
 }
//确认打印日志
int ShowPrintLog(void)
 {
  static char pszText[]="请准备好打印机!\n\n开始打印所有日志。";
  int rc;

 //验证用户权限
  rc= ValidateRight(RIGHT_MANAGE);
  if(rc){
    MessageBeep(MB_ICONHAND);
    rc = Application->MessageBox(pszText,GetMainTitle(),
      MB_OKCANCEL|MB_ICONINFORMATION|MB_DEFBUTTON2|MB_APPLMODAL);
    if(rc==IDOK)rc=TRUE;
    else rc=FALSE;
   }
  return(rc);
 }
void __fastcall TLogForm::m_CloseButClick(TObject *Sender)
{
 ModalResult=mrOk;
}

//保存一个日志
int SaveOneLog(int nDone)
 {
  char *pszAcc;

  pszAcc=GetCurAccName();
  nDone=SaveAccountLog(pszAcc,nDone);//保存帐号日志
  return(nDone);
 }

//获取日志文件名
char *GetLogFilename(char *pszFile,int nSize)
 {
  static char pszDef[]="LOOKLOG";
  char *p;

  p = NULL; //获取文件名
  GetFullPathName(Application->ExeName.c_str(),nSize,pszFile,&p);
  if(p==NULL)return(NULL);
  lstrcpy(p,pszDef);
  return(pszFile);
 }
//打开日志文件
int OpenLogFile(void)
 {
  char szFile[MAX_PATH];
  int hFile;

  GetLogFilename(szFile,sizeof(szFile)-1);
  if(FileExists(szFile)){
    hFile = FileOpen(szFile,fmOpenReadWrite|fmShareDenyNone);
    FileSeek(hFile,0,2);
   }
  else hFile=FileCreate(szFile);
  return(hFile);
 }
//删除日志文件
int DeleteLogFile(void)
 {
  static char pszExt[]=".BAK";
  char *pszFile,*pszBak,*p;
  int rc;

  rc=FALSE;
  pszFile=new char[MAX_PATH*2+10];
  if(pszFile!=NULL){
    pszBak=pszFile+MAX_PATH;
    GetLogFilename(pszFile,MAX_PATH);
    lstrcpy(pszBak,pszFile);
    p = strrchr(pszBak,'.');
    if(p==NULL)lstrcat(pszBak,pszExt);
    else lstrcpy(p,pszExt);
    if(FileExists(pszBak)) //删除备份文件
        DeleteFile(pszBak);
    rc=RenameFile(pszFile,pszBak);//将文件改为备份文件
    delete pszFile;
   }

  return(rc);
 }
//关闭日志文件
void CloseLogFile(int hFile)
 {
  if(hFile!=-1) FileClose(hFile);
 }
//读取日志文件中所有
char *ReadLogFileAll(void)
 {
  char *p;
  int hFile,nLen;

  p=NULL; nLen=0;
  hFile=OpenLogFile();
  if(hFile!=-1){
    nLen=FileSeek(hFile,0,2);
    if(nLen>0) p=(char *)GlobalAlloc(GPTR,nLen+1);
   }
  if(p!=NULL){
    FileSeek(hFile,0,0);
    FileRead(hFile,p,nLen);
    p[nLen]=0;
   }
  else if(nLen>0) ShowNotMemory("读取日志文件");
  CloseLogFile(hFile);

  return(p);
 }
//写日志文件(nReturn!=FALSE 加写换行符)
int WriteLogFile(int hFile,char *pszBuf,int nReturn)
 {
  int nLen;
  if(hFile!=-1){
    nLen=lstrlen(pszBuf);
    nLen=FileWrite(hFile,pszBuf,nLen);
    if(nReturn) nLen+=FileWrite(hFile,"\r\n",2);
   }
  else nLen=0;
  return(nLen);
 }
//保存帐号日志
int SaveAccountLog(char *pszAcc,int nDone)
 {
  int hFile;
  int rc;

  hFile = OpenLogFile();
  rc=WriteAccountLog(hFile,pszAcc,nDone);
  CloseLogFile(hFile);
  return(rc);
 }
//写入帐号日志
int WriteAccountLog(int hFile,char *pszAcc,int nDone)
 {
  static char pszText[]="%04d.%02d.%02d(%s)-%02d:%02d:%02d"
    "  用户\"%s\" %s";
  SYSTEMTIME t;
  int nLen;
  char *pszDone,szBuf[150];

//获取现在时间,日期
  GetLocalTime(&t);
  pszDone = GetDoneText(nDone);
  wsprintf(szBuf,pszText,
     t.wYear,t.wMonth,t.wDay,GetWeekName(t.wDayOfWeek),
     t.wHour,t.wMinute,t.wSecond,
     pszAcc,pszDone);
  nLen=WriteLogFile(hFile,szBuf);
  return(nLen);
 }