commis.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 "commis.h"

int CommissionWorker::amount=0;
long int CommissionWorker::totalM=0;
CommissionWorker *CommissionWorker::first=0;
CommissionWorker *CommissionWorker::end=0;
CommissionWorker::CommissionWorker(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();
}

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

void CommissionWorker::earnings()
{
  switch(type)
    {
    case 'A':wages=400;commission=5;break;
    case 'B':wages=200;commission=50;break;
    default:;
    }
  salary=wages+commission*quantity;
  totalM+=salary;
  Employee::totalM+=salary;
}

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

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

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

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

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

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

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

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

void CommissionWorker::printList(int x,int y,int lines)
{
  int i=1;
  lines/=3;
  CommissionWorker *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 CommissionWorker::saveList(ofstream &fout)
{
  CommissionWorker *p;
  fout<<"Commission: "<<p->amount<<endl;
  for (p=p->first;p;p=p->next)
    fout<<p->firstName<<" "<<p->lastName<<" "<<p->quantity<<" "<<p->type<<endl;
}

void CommissionWorker::display(ostream &out) const
{
  Employee::display(out);
  out<<"  Commission Worker"<<endl;
  out<<"Type: "<<type<<" BaseWages: "<<wages<<" Commission: "<<setw(2)<<commission<<" Quantity: "<<quantity<<endl;
  out<<"Salary:"<<setw(6)<<salary<<endl;
}