piece.cpp

1、 模拟一间公司（有普通工人、经理、销售员、计时工人和计件工人）的雇员月工资单管理系统

#include <iostream.h>
#include <conio.h>
#include <iomanip.h>
#include <graphics.h>
#include <string.h>
#include "piece.h"
#include "lpiece.h"

int PieceWorker::amount=0;
long int PieceWorker::totalM=0;
PieceWorker *PieceWorker::first=0;
PieceWorker *PieceWorker::end=0;
PieceWorker::PieceWorker(const char *pFirst,const char *pLast,float tQuantity,char t)
	   :Employee(pFirst,pLast)
{
  quantity=tQuantity;
  type=t;
  if(first==0)
    first=this;
  else
    end->next=this;
  end=this;
  end->next=0;
  amount++;
  earnings();
}

PieceWorker::PieceWorker(float tQuantity,char t)
	   :Employee(" "," ")
{
  quantity=tQuantity;
  type=t;
  amount++;
  earnings();
}

PieceWorker::~PieceWorker()
{
  amount--;
  totalM-=salary;
  Employee::totalM-=salary;
  if(first==this)
    first=this->next;
  else
    for(PieceWorker *p=first;p;p=p->next)
    if(p->next==this) p->next=this->next;
}

void PieceWorker::earnings()
{
  switch(type)
    {
    case 'A':perPiece=8;break;
    case 'B':perPiece=60;break;
    default:;
    }
  salary=perPiece*quantity;
  totalM+=salary;
  Employee::totalM+=salary;
}

void PieceWorker::setType(char tType)
{
  type=tType;
  totalM-=salary;
  Employee::totalM-=salary;
  earnings();
}

void PieceWorker::setQuantity(int tQuantity)
{
  totalM-=salary;
  Employee::totalM-=salary;
  quantity=tQuantity;
  earnings();
}

PieceWorker *PieceWorker::getFirst() const{ return first;}

Employee *PieceWorker::getNext() const{ return next;}

int PieceWorker::getAmount() const{ return amount;}

long int PieceWorker::getTotalM() const{ return totalM;}

int PieceWorker::getSalary() const{ return salary;}

void PieceWorker::delAll()
{
PieceWorker *p;
for(p=first;p;p=p->next)delete p;
}

void PieceWorker::printList(int x,int y,int lines)
{
  int i=1;
  lines/=2;
  PieceWorker *p;
  for (p=p->first;p;p=p->next)
  {
    cout<<*p;
    if(i%lines==0)
    {
      cout<<endl<<"Press space to continue"<<endl;
      while(getch()!=32);
      gotoxy(x,y);
      setfillstyle(BLACK,COPY_PUT);
      bar(0,30,470,458);
    }
    i++;
  }
  cout<<endl<<"Press space to continue"<<endl;
  while(getch()!=32);
}

void PieceWorker::saveList(ofstream &fout)
{
  PieceWorker *p;
  LabourAndPiece *pl;
  fout<<"Piece: "<<(p->amount-pl->getAmount())<<endl;
  for (p=p->first;p;p=p->next)
    fout<<p->firstName<<" "<<p->lastName<<" "<<p->quantity<<" "<<p->type<<endl;
}

void PieceWorker::display(ostream &out) const
{
  Employee::display(out);
  out<<"  Piece Worker"<<endl;
  out<<"Type: "<<type<<" WagesPerPiece: "<<setw(2)<<perPiece<<" Quantity: "<<quantity<<" Salary:"<<setw(6)<<salary<<endl;
}