posreckoningwindow.c

在linux平台下模拟超市的收银系统即POS机

	insert_rear_link(billList,no4);
	insert_rear_link(billList,no5);
	insert_rear_link(billList,no6);
	insert_rear_link(billList,no7);
	insert_rear_link(billList,no8);
	insert_rear_link(billList,no9);
	insert_rear_link(billList,no10);
	insert_rear_link(billList,no11);
	insert_rear_link(billList,no12);
	
	
	int lineCount=5;
	int cursorLocation=1;
	int currentRecNo=1;
	//ch=GetChar(lists,0,0);
	NODE * p;
	NODE * firstRecPoint=billList->head;
	int i=0;
	int number=1;//每页第一条记录的编号
	int tempNumber;//每次要打印的
	while(1)
	{
		p=firstRecPoint;

		tempNumber=number;
		while(p!=NULL)
		{
			mvwprintw(lists,i,0,"%d",tempNumber++);
			mvwprintw(lists,i,2,((BillID *)(p->node_data))->no);
			p=p->next;
			i++;
			if(i>=lineCount || p==NULL)
			{
				i=0;
				break;
			}
		}
		wrefresh(lists);

		ListOption_reverse(lists,cursorLocation,currentRecNo,billList);

		wattron(lists,A_REVERSE);//反白显示下一行
		mvwprintw(lists,0,0,"%3d,%3d",currentRecNo,cursorLocation);
		//mvwprintw(lists,1,0,"%s",((BillID *)(firstRecPoint->node_data))->no);
		wattroff(lists,A_REVERSE);
		wrefresh(lists);

		ch=GetChar(lists,0,0);
		//当在第一行的时候按向上键的时候
		if(ch==KEY_UP )
		{	
			if(cursorLocation==1)
			{	
				if(firstRecPoint->prior!=NULL)
				{
					firstRecPoint=firstRecPoint->prior;
					currentRecNo--;
					number--;
				}
				//wclear(lists);
			}
			else  
			{
				// 不在第一行的时候进行的处理
				currentRecNo--;
				cursorLocation--;
			}
		}


		//当不是在最后一行按下向下键的时候的处理
		if(ch==KEY_DOWN)
		{
			if( (cursorLocation<lineCount) && (currentRecNo<billList->count) )
			{
				currentRecNo++;
				cursorLocation++;
			}
			else if((cursorLocation>=lineCount) && (currentRecNo<billList->count))
			{
				currentRecNo++;
				firstRecPoint=firstRecPoint->next;
				number++;
			}

		}
		//模拟删除
		if(ch=='\n')
		{
			//当从第一个节点开始删除的时候
			if(currentRecNo==1)
			{
				//当前节点等于尾节点也就只剩一个节点时
				if((billList->head==billList->rearptr) && (1==billList->count) )
				{
// 					wattron(lists,A_REVERSE);//反白显示下一行
// 					mvwprintw(lists,1,0,"1.%3d,%3d",currentRecNo,cursorLocation);
// 					wattroff(lists,A_REVERSE);
// 					wrefresh(lists);
//					GetChar(lists,0,0);

					del_head_link(billList);
					return;
				}
				else
				{
// 				 	wattron(lists,A_REVERSE);//反白显示下一行
// 					mvwprintw(lists,1,0,"2.%3d,%3d",currentRecNo,cursorLocation);
// 					wattroff(lists,A_REVERSE);
// 					wrefresh(lists);
// 					GetChar(lists,0,0);

					del_head_link(billList);
					firstRecPoint=billList->head;
					tempNumber=1;
				}
			}
			else if(currentRecNo==billList->count) //当从尾节点开始删除的时候
			{
				int step=billList->count-lineCount;  //计算出上一页第一条记录位置
				NODE * temp=get_node_by_index(billList,step);//得到指定记录的指针
				del_rear_link(billList); //将尾结点删掉
				currentRecNo--; //当前记录号减一
				cursorLocation--;//光标位置也减一
				if(cursorLocation<1)//当光标位置小于1的时候说明要上翻一页
				{
					//当记录总数还大于每页显示的条数时
					if(billList->count>lineCount)
					{
						cursorLocation=lineCount;
						firstRecPoint=temp;
						number-=5;

					}
					else
					{
						cursorLocation=billList->count;
						firstRecPoint=billList->head;
						number=1;
					}
				}
			}
			else if(cursorLocation==1)//当光标为第一位的时候
			{
				NODE * temp =get_node_by_index(billList,currentRecNo+1);
				del_link_index(billList,currentRecNo);
				firstRecPoint=temp;

			}
			else 
			{
				//NODE * temp=get_node_by_index(billList,currentRecNo);
				//firstRecPoint=temp->next;
				del_link_index(billList,currentRecNo);
				//firstRecPoint
			}

		}

// 	 	wattron(lists,A_REVERSE);//反白显示下一行
// 	 	mvwprintw(lists,1,0,"%3d,%3d",currentRecNo,cursorLocation);
// 	 	wattroff(lists,A_REVERSE);
// 	 	wrefresh(lists);
		//GetChar(lists,0,0);
		// 将lists这个窗口里边的内容清掉
		wclear(lists);
		//GetChar(lists,0,0);
	}	
	free_list(billList);
	scr_restore("save.scr");
	
	getchar();
	DestroyWindow(win);
	DestroyWindow(lists);
	return result;//返回选择的值，如确定就是0,返回就是1	
}






//要封函数参数要 LINKList  交易号  员工号 时间 总金额 状态
//sale_state为1是收银，0是挂单，-1为退货
int Save_Sale_Result(LINKLIST * linklist,int trans_id,char *id,char *time,float totalMoney,int sale_state)//state为1是收银，0是挂单，-1为退货
{
	char sale_id_str[20]={'\0'};//销售号
	char trans_ids_str[10]={'\0'};//存放交易号

	sprintf(trans_ids_str,"%d",trans_id);//将交易ID转成字符串
	strcpy(sale_id_str,time);//将时间存放到销售号中去
	strcat(sale_id_str,trans_ids_str);//再将交易号再加进去
	//Message_Box(10,50,10,10,RED_BLACK,"测试",sale_id_str);

	InsertIntoSale(sale_id_str,trans_ids_str,id,time,totalMoney,sale_state);//插入到销售表中

	NODE * pNode=linklist->head;
	while(pNode!=NULL)
	{
		saleProduct* pSaleProduct=(saleProduct *)pNode->node_data;
		char bar_code[10];
		char sale_id[20];
		char detail_id[20];
		int detail_seque=Get_Detail_Seque();
		char detail_seque_str[10];
		int count=0;
		float sale_price;
		//int sale_state;
		strcpy(bar_code,pSaleProduct->bar_code);//商品条形码
		strcpy(sale_id,sale_id_str);//销售ID号
		//商品明细编号为  日期加交易号
		strcpy(detail_id,time);//将日期给明细字段
		sprintf(detail_seque_str,"%d",detail_seque);
		strcat(detail_id,detail_seque_str);//将数据库序列产生的编号加进去
		count=pSaleProduct->amount;//出售数量
		sale_price=pSaleProduct->sale_price;//商品单价
		//sale_state=1;//出售商品的状态 出售状态为1

		Insert_To_Sale_Detail(detail_id,sale_id,bar_code,count,sale_price,sale_state);

		if(sale_state==1)//结帐时候要更新库存
		{
			ReduceStock(pSaleProduct->bar_code,pSaleProduct->amount);
		}
		pNode=pNode->next;
	}					
}




//Pos机的结帐窗口
int CreatePosReckoningWindow()
{
	//win=CreateWindow()
	char title[]="欢迎光临XXX超市";
    int scrY,scrX,strLength,i;
//     strLength=strlen(title);
//     getmaxyx(stdscr,scrY,scrX);

	
	char time[20]={'\0'};
	//画边框
	WINDOW * win=CreateWindow(25,80,0,0,Yes,BLACK_WHITE);
	//box(stdscr,0,0);
	StringCenterPrint(win,0,"欢迎光临XXX超市");
    //mvprintw(0,(scrX-strLength)/2,title); //打印标题

	char * pName=(char *)malloc(100);
	Get_Staff_Name(id,pName);
	strcpy(name,pName);
	free(pName);
	//Trim(name);
	mvwprintw(win,1,1,"收银员:%s",name);
	mvwprintw(win,1,18,"等级：普通职员");

	int trans_id;
	trans_id=Get_Trans_Seque();//获得交易号这个号是由数据库的序列产生的

	mvwprintw(win,1,35,"交易号: %d",trans_id);

	GetSystemTime(time);

	mvwprintw(win,1,51,"时间: %s",time);

	printhline(win,2,1,78);
	mvwprintw(win,3,1,"序号");
	mvwprintw(win,3,7,"条形码");
	mvwprintw(win,3,17,"商品名称");
	mvwprintw(win,3,47,"规格");
	mvwprintw(win,3,53,"单位");
	mvwprintw(win,3,60,"单价");
	mvwprintw(win,3,67,"数量");
	mvwprintw(win,3,73,"金额");
	printhline(win,4,1,78);
	printhline(win,20,1,78);
	mvwprintw(win,21,1,"条形码:");
	mvwprintw(win,21,50,"销售状态:正常");
	printhline(win,22,1,78);
	mvwprintw(win,23,1,"F2:新增明细");
	mvwprintw(win,23,13,"F3:删除明细");
	mvwprintw(win,23,25,"F4:收银");
	mvwprintw(win,23,33,"F5:挂单");
	mvwprintw(win,23,41,"F6:取单");
	mvwprintw(win,23,49,"F7:撤单");
	mvwprintw(win,23,57,"F8:退货");
	mvwprintw(win,23,65,"F9:退出");
	printhline(win,26,1,78);

	int ch;
	char barcode[20]="CN";//存放输入的条形码
	//画输入条形码的反白框
	WINDOW * inputBarcode=CreateWindow(1,16,21,9,No,WHITE_BLACK);
	mvwprintw(inputBarcode,0,0,"CN");
	wrefresh(inputBarcode); //刷新窗口缓冲区
	
	WINDOW * printRecordWin=CreateWindow(15,78,5,1,No,BLACK_WHITE);

	int lineCount=15;//每页打印的条数
	int cursorLocation=1;
	int rollcursorLoaction;
	int currentRecNo=1;
	LINKLIST * printlist=(LINKLIST *)malloc(sizeof(LINKLIST));
	link_init(printlist);
	NODE * p=NULL;
	NODE * firstRecPoint=NULL;
	int count=0;
	int number=1;//每页第一条记录的编号
	int tempNumber;//每次要打印的
	barcode[2]='\0';
start:

	while(1)
	{

Input_Barcode:

		barcode[2]='\0';
		ch=GetNumber(inputBarcode,0,2,&barcode[2],6);
		//wclear(inputBarcode);
		//mvwprintw(inputBarcode,0,0,"CN");

		switch(ch)
		{
		case '\n':
			//对输入的条形码进行校验
			{

				strLength=strlen(barcode);
// 				mvwprintw(printRecordWin,10,10,"%d",strLength);
// 				wrefresh(printRecordWin);
				if(strLength!=8)
				{
					Message_Box(8,30,5,20,RED_BLACK,"提示","输入的条形码只能是6个数字");
					wclear(inputBarcode);
					mvwprintw(inputBarcode,0,0,"CN");
					goto Input_Barcode;
				}
				//判断输入的条开码是否全是数字
				for(i=2;i<strLength;i++)
				{
					if(!isdigit(barcode[i]))
					{
						Message_Box(8,30,5,20,RED_BLACK,"提示","输入的条形码只能是6个数字");
						wclear(inputBarcode);
						mvwprintw(inputBarcode,0,0,"CN");
						goto Input_Barcode;
					}
				}
				if(strLength==2) //即没有输入条形码
				{
					//wclear(inputBarcode);
					goto Input_Barcode;
				}
				product * pro=(product *)malloc(sizeof(product));
				saleProduct * salepro=(saleProduct *)malloc(sizeof(saleProduct));
				int result;
				result=Get_ProductInfo_By_Barcode(barcode,pro);
				if(result!=0)
				{
					wclear(inputBarcode);
					mvwprintw(inputBarcode,0,0,"CN");
					goto Input_Barcode;
				}
				//mvwprintw(printRecordWin,0,40,"%d",result);
				if(result!=0)
				{	
					free(pro);// 释放掉读取出来的商品
					goto Input_Barcode;
				}
 				ConverToSaleRec(pro,salepro,1);
				free(pro);// 释放掉读取出来的商品
				insert_rear_link(printlist,salepro);
				//判断是不是只有一条记录
				currentRecNo=printlist->count;
				if(printlist->count<=lineCount)
				{
					firstRecPoint=printlist->head;
				}
				else if(printlist->count>lineCount)
				{
					firstRecPoint=get_node_by_index(printlist,printlist->count-lineCount+1);
					number=printlist->count-lineCount+1;
				}
				else
				{
					firstRecPoint=firstRecPoint->next;
					number++;//每页记录号
				}

				p=firstRecPoint;
				tempNumber=number;
				saleProduct * pSaleProduct;//
				wclear(printRecordWin);
				while(p!=NULL)
				{
					//打印记录
					pSaleProduct=(saleProduct *)(p->node_data);
					if(tempNumber!=printlist->count)
					{
						mvwprintw(printRecordWin,count,0,"%-6d%-10s%-30s%-6s%-7s%-7.2f%-6d%-6.2f",tempNumber,pSaleProduct->bar_code,pSaleProduct->product_name,pSaleProduct->unit,pSaleProduct->spec,pSaleProduct->sale_price,pSaleProduct->amount,pSaleProduct->money);
					}
					else
					{
						wattron(printRecordWin,A_REVERSE);//反白显示上一行
						mvwprintw(printRecordWin,count,0,"%-6d%-10s%-30s%-6s%-7s%-7.2f%-6d%-6.2f",tempNumber,pSaleProduct->bar_code,pSaleProduct->product_name,pSaleProduct->unit,pSaleProduct->spec,pSaleProduct->sale_price,pSaleProduct->amount,pSaleProduct->money);
						wattroff(printRecordWin,A_REVERSE);
					}
					tempNumber++;
					p=p->next;
					count++;//记录当前页有多少条记录
					if(count>=lineCount || p==NULL)
					{
						count=0;
						break;
					}
				}

				wclear(inputBarcode);
				mvwprintw(inputBarcode,0,0,"CN");

				wrefresh(printRecordWin);


// 				mvwprintw(printRecordWin,10,10,"%d",currentRecNo);
// 				wrefresh(printRecordWin);
// 				wgetch(printRecordWin);


				if(cursorLocation<lineCount)
				{
					if(lineCount>printlist->count)
					{
						cursorLocation=printlist->count;
					}
					else
					{
						cursorLocation=lineCount;
					}
// 					else
// 					{
// 						cursorLocation=lineCount-1;
// 					}
				}

// 				mvwprintw(printRecordWin,14,0,"当前光标位置:%d当前记录号:%d",cursorLocation,currentRecNo);
// 				wrefresh(printRecordWin);
//  				//saleRecord_reverse(printRecordWin,currentRecNo,currentRecNo,printlist);
//  				wrefresh(printRecordWin);
				//rollcursorLoaction=cursorLocation;//滚动光标位置等于当前位置;


			}
			break;
		case KEY_UP:
			{	
				if(printlist->head==NULL)
				{
					break;
				}
				wclear(printRecordWin);
				saleProduct * pSaleProduct;
				if(cursorLocation==1)
				{	
					if(firstRecPoint->prior!=NULL)
					{
						firstRecPoint=firstRecPoint->prior;