#include "../pch/pch.h" #include "CPosPrinter.h" #include #include using boost::asio::ip::tcp; CPosPrinter::CPosPrinter(): m_socket(m_io) { } CPosPrinter::~CPosPrinter() { } bool CPosPrinter::InitShouyin() { //遍历USB设备,找到POS打印机路径 //设备路径 TCHAR* szDevicePath[MAX_DEVICE]; //设置中文字符 setlocale(LC_CTYPE, "chs"); TCHAR* Port = NULL; //分配需要的空间 for(int i = 0; i < MAX_DEVICE; i++) { szDevicePath[i] = new TCHAR[256]; } //取设备路径 int nDevice = GetDevicePath((LPGUID)&USB_GUID, szDevicePath); int i = 0; while(i < nDevice) { Port = szDevicePath[i++]; LOG_INFO("device.Port = " << Port); } m_hPort = CreateFile(Port, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if(m_hPort == INVALID_HANDLE_VALUE) { // 打开端口失败 return false; } return true; } void CPosPrinter::PrintWaimaiOrderShouyin(CWaimaiOrder& order) { //设置模式,后面输出数据不会错 m_type = 1; //初始化收银打印机的链接 bool ret = InitShouyin(); if(ret == false) { LOG_INFO("打开收银打印机端口失败!"); return; } //读取当前收银打印机的设置 std::string guige = CSetting::GetParam("setting_printer_guige"); std::string lianshu = CSetting::GetParam("setting_printer_lianshu"); int n_lianshu = atoi(lianshu.c_str()); //正式开始打印 for(int i = 0; i < n_lianshu; i++) { POS_Reset(); string shop_name = "#" + order.m_restaurant_number + " " + CLewaimaiString::UTF8ToANSI(order.m_shop_name); POS_TextOut(shop_name, true, 1); POS_FeedLine(); POS_FeedLine(); if(order.m_is_selftake == "1") { POS_TextOut("到店自取订单", false, 1); POS_FeedLine(); POS_FeedLine(); POS_TextOut("取餐号:" + CLewaimaiString::UTF8ToANSI(order.m_take_food_code), true, 1); POS_FeedLine(); } else { POS_TextOut("外卖订单", false, 1); POS_FeedLine(); } POS_FeedLine(); //订单来源 string from_type = "订单来源:" + CLewaimaiString::UTF8ToANSI(order.m_from_type); POS_TextOut(from_type); POS_FeedLine(); //订单号 string order_no = "订单号:" + CLewaimaiString::UTF8ToANSI(order.m_order_no); POS_TextOut(order_no); POS_FeedLine(); //姓名 if(order.m_is_selftake != "1") { string name = "姓名:" + CLewaimaiString::UTF8ToANSI(order.m_customer_name); POS_TextOut(name); POS_FeedLine(); } //电话 string phone = "电话:" + CLewaimaiString::UTF8ToANSI(order.m_phone); POS_TextOut(phone); POS_FeedLine(); //地址 if(order.m_is_selftake != "1") { string address = "地址:" + CLewaimaiString::UTF8ToANSI(order.m_address); POS_TextOut(address); POS_FeedLine(); } //预设选项 if(order.m_order_field.size() > 1) { for(std::vector::iterator it = order.m_order_field.begin(); it != order.m_order_field.end() - 1; it++) { string order_field = CLewaimaiString::UTF8ToANSI((*it).name) + ":" + CLewaimaiString::UTF8ToANSI((*it).value); POS_TextOut(order_field, false, 0); POS_FeedLine(); } } //下单时间 string order_date = "下单时间:" + CLewaimaiString::UTF8ToANSI(order.m_order_date); POS_TextOut(order_date); POS_FeedLine(); //配送时间 if(order.m_is_selftake == "1") { string date = "自取时间:" + CLewaimaiString::UTF8ToANSI(order.m_delivery_date); POS_TextOut(date); POS_FeedLine(); } else { string date = "配送时间:" + CLewaimaiString::UTF8ToANSI(order.m_delivery_date); POS_TextOut(date); POS_FeedLine(); } //准备开始打印商品详情 string lines; if(guige == "58") { lines = "--------------------------------"; } else { lines = "------------------------------------------------"; } POS_TextOut(lines); POS_FeedLine(); //商品标题 if(guige == "58") { POS_TextOut("商品 单价 数量 金额"); } else { POS_TextOut("商品 单价 数量 金额"); } POS_FeedLine(); //商品内容 for(std::vector::iterator it = order.m_order_items.begin(); it != order.m_order_items.end(); it++) { std::string food_name = (*it).m_food_name; std::string food_price = (*it).m_item_price; std::string quantity = (*it).m_quantity; //计算总价 double item_price = atof(food_price.c_str()) * atof(quantity.c_str()); std::string food_total_price = CLewaimaiString::DoubleToString(item_price, 2); food_name = CLewaimaiString::UTF8ToANSI(food_name); //先输出商品名字 std::vector m_names; if(guige == "58") { m_names = HandleFoodname(food_name, 1); } else { m_names = HandleFoodname(food_name, 2); } std::string firstLine = m_names[0]; std::string priceShow = HandleFoodItemPrice(food_price, 2); std::string quantityShow = HandleFoodQuantity(quantity, 2); std::string priceTotalShow = HandleFoodTotalPrice(food_total_price, 2); std::string firstLineShow = firstLine + priceShow + quantityShow + priceTotalShow; POS_TextOut(firstLineShow, false, 0); POS_FeedLine(); for(std::vector::iterator it = m_names.begin() + 1; it != m_names.end(); it++) { POS_TextOut((*it), false, 0); POS_FeedLine(); } } //判断是否有备注 if(order.m_memo.length() > 0) { POS_FeedLine(); string address = "顾客备注:" + CLewaimaiString::UTF8ToANSI(order.m_memo); POS_TextOut(address, false, 0); POS_FeedLine(); } //结束商品详情打印 POS_TextOut(lines); POS_FeedLine(); //开始打印其他的费用 bool is_other_money = false; if(order.m_delivery > 0) { string delivery = "配送费:" + CLewaimaiString::DoubleToString((double)order.m_delivery, 2); POS_TextOut(delivery, false, 0); POS_FeedLine(); is_other_money = true; } if(order.m_is_dabao == "1") { string dabao = "打包费:" + CLewaimaiString::UTF8ToANSI(order.m_dabao_money); POS_TextOut(dabao, false, 0); POS_FeedLine(); is_other_money = true; } //开始显示增值服务费 if(order.m_addservie.size() > 0) { for(std::vector::iterator it = order.m_addservie.begin(); it != order.m_addservie.end(); it++) { string addservice = CLewaimaiString::UTF8ToANSI((*it).name) + ":" + CLewaimaiString::DoubleToString((double)atof((*it).value.c_str()), 2); POS_TextOut(addservice, false, 0); POS_FeedLine(); is_other_money = true; } is_other_money = true; } if(order.m_discount < 10) { string discount = "打折:" + CLewaimaiString::DoubleToString((double)order.m_discount, 2) + "折"; POS_TextOut(discount, false, 0); POS_FeedLine(); is_other_money = true; } if(order.m_is_member_discount == "1") { string member_discount = "会员优惠:-" + order.m_member_discount; POS_TextOut(member_discount, false, 0); POS_FeedLine(); is_other_money = true; } if(order.m_is_firstcut == "1") { string firstcut = "首单优惠:-" + order.m_firstcut_value; POS_TextOut(firstcut, false, 0); POS_FeedLine(); is_other_money = true; } //满减 string::size_type position = order.m_promotion.find(":"); if(position != order.m_promotion.npos) { string promotion_value; promotion_value.assign(order.m_promotion, position + 1); string promotion = "满减优惠:-" + CLewaimaiString::DoubleToString((double)(atof(promotion_value.c_str())), 2); POS_TextOut(promotion, false, 0); POS_FeedLine(); is_other_money = true; } if(order.m_coupon > 0) { string coupon = "优惠券:-" + CLewaimaiString::DoubleToString((double)order.m_coupon, 2); POS_TextOut(coupon, false, 0); POS_FeedLine(); is_other_money = true; } if(atof(order.m_goods_coupon_value.c_str()) > 0.0001) { string coupon = "商品券:-" + order.m_goods_coupon_value; POS_TextOut(coupon, false, 0); POS_FeedLine(); is_other_money = true; } if(is_other_money) { POS_TextOut(lines); POS_FeedLine(); } //最后显示总价 POS_TextOut("总计:¥" + CLewaimaiString::DoubleToString(order.m_price, 2), false, 2); POS_FeedLine(); //显示付款方式 POS_TextOut("支付方式:" + CLewaimaiString::UTF8ToANSI(order.m_pay_type), false, 2); POS_FeedLine(); POS_FeedLine(); POS_CutPaper(); } } void CPosPrinter::PrintWaimaiOrderChufang(CWaimaiOrder& order) { //设置模式,后面输出数据不会错 m_type = 2; //读取厨房打印机信息 std::vector total_printers = CSetting::getChufangPrints(); for(std::vector::iterator it = total_printers.begin(); it != total_printers.end(); it++) { ChufangPrinter printer = *it; std::string ip = printer.ip; //初始化连接 try { boost::asio::ip::tcp::endpoint ep(boost::asio::ip::address::from_string(ip.c_str()), 9100); m_socket.connect(ep); } catch(std::exception& e) { std::string err = e.what(); LOG_INFO("连接厨房打印机失败,IP地址:" << ip.c_str() << ",错误信息:" << err.c_str()); //连接失败了,处理下一个厨房打印机 continue; } std::string guige = printer.guige; std::string fendan = printer.fendan; std::string fenlei = printer.fenlei; std::string fenlei_ids = printer.fenlei_ids; std::vector cur_printer_use; if(fenlei == "0") { cur_printer_use = order.m_order_items; } else { //如果开启了分类打印,就要比对了 std::map ids_map; std::vector ids = CLewaimaiString::Split(fenlei_ids, ","); for(std::vector::iterator it = ids.begin(); it != ids.end(); it++) { ids_map[(*it)] = true; } for(std::vector::iterator it = order.m_order_items.begin(); it != order.m_order_items.end(); it++) { if(ids_map.find((*it).m_type_id) != ids_map.end()) { //如果当前商品的分类,在厨房打印机设置的分类里面,才加入 cur_printer_use.push_back(*it); } } } if(fendan == "0") { POS_Reset(); POS_TextOut("派工单", true, 1); POS_FeedLine(); POS_FeedLine(); //预设选项 if(order.m_order_field.size() > 1) { for(std::vector::iterator it = order.m_order_field.begin(); it != order.m_order_field.end() - 1; it++) { string order_field = CLewaimaiString::UTF8ToANSI((*it).name) + ":" + CLewaimaiString::UTF8ToANSI((*it).value); POS_TextOut(order_field, false, 0); POS_FeedLine(); } } //准备开始打印商品详情 string lines; if(guige == "58") { lines = "--------------------------------"; } else { lines = "------------------------------------------------"; } POS_TextOut(lines); POS_FeedLine(); //商品标题 if(guige == "58") { POS_TextOut("商品 单价 数量 金额"); } else { POS_TextOut("商品 单价 数量 金额"); } POS_FeedLine(); //商品内容 for(std::vector::iterator it = cur_printer_use.begin(); it != cur_printer_use.end(); it++) { std::string food_name = (*it).m_food_name; std::string food_price = (*it).m_item_price; std::string quantity = (*it).m_quantity; //计算总价 double item_price = atof(food_price.c_str()) * atof(quantity.c_str()); std::string food_total_price = CLewaimaiString::DoubleToString(item_price, 2); food_name = CLewaimaiString::UTF8ToANSI(food_name); //先输出商品名字 std::vector m_names; if(guige == "58") { m_names = HandleFoodname(food_name, 1); } else { m_names = HandleFoodname(food_name, 2); } std::string firstLine = m_names[0]; std::string priceShow = HandleFoodItemPrice(food_price, 2); std::string quantityShow = HandleFoodQuantity(quantity, 2); std::string priceTotalShow = HandleFoodTotalPrice(food_total_price, 2); std::string firstLineShow = firstLine + priceShow + quantityShow + priceTotalShow; POS_TextOut(firstLineShow, false, 0); POS_FeedLine(); for(std::vector::iterator it = m_names.begin() + 1; it != m_names.end(); it++) { POS_TextOut((*it), false, 0); POS_FeedLine(); } } //判断是否有备注 if(order.m_memo.length() > 0) { POS_FeedLine(); string address = "顾客备注:" + CLewaimaiString::UTF8ToANSI(order.m_memo); POS_TextOut(address, false, 0); POS_FeedLine(); } //结束商品详情打印 POS_TextOut(lines); POS_FeedLine(); POS_FeedLine(); POS_CutPaper(); } else { POS_Reset(); //分单模式下,每个商品打印一张单 for(std::vector::iterator it = cur_printer_use.begin(); it != cur_printer_use.end(); it++) { POS_TextOut("派工单", true, 1); POS_FeedLine(); POS_FeedLine(); //预设选项 if(order.m_order_field.size() > 1) { for(std::vector::iterator it = order.m_order_field.begin(); it != order.m_order_field.end() - 1; it++) { string order_field = CLewaimaiString::UTF8ToANSI((*it).name) + ":" + CLewaimaiString::UTF8ToANSI((*it).value); POS_TextOut(order_field, false, 0); POS_FeedLine(); } } //准备开始打印商品详情 string lines; if(guige == "58") { lines = "--------------------------------"; } else { lines = "------------------------------------------------"; } POS_TextOut(lines); POS_FeedLine(); //商品标题 if(guige == "58") { POS_TextOut("商品 单价 数量 金额"); } else { POS_TextOut("商品 单价 数量 金额"); } POS_FeedLine(); std::string food_name = (*it).m_food_name; std::string food_price = (*it).m_item_price; std::string quantity = (*it).m_quantity; //计算总价 double item_price = atof(food_price.c_str()) * atof(quantity.c_str()); std::string food_total_price = CLewaimaiString::DoubleToString(item_price, 2); food_name = CLewaimaiString::UTF8ToANSI(food_name); //先输出商品名字 std::vector m_names; if(guige == "58") { m_names = HandleFoodname(food_name, 1); } else { m_names = HandleFoodname(food_name, 2); } std::string firstLine = m_names[0]; std::string priceShow = HandleFoodItemPrice(food_price, 2); std::string quantityShow = HandleFoodQuantity(quantity, 2); std::string priceTotalShow = HandleFoodTotalPrice(food_total_price, 2); std::string firstLineShow = firstLine + priceShow + quantityShow + priceTotalShow; POS_TextOut(firstLineShow, false, 0); POS_FeedLine(); for(std::vector::iterator it = m_names.begin() + 1; it != m_names.end(); it++) { POS_TextOut((*it), false, 0); POS_FeedLine(); } //判断是否有备注 if(order.m_memo.length() > 0) { POS_FeedLine(); string address = "顾客备注:" + CLewaimaiString::UTF8ToANSI(order.m_memo); POS_TextOut(address, false, 0); POS_FeedLine(); } //结束商品详情打印 POS_TextOut(lines); POS_FeedLine(); POS_FeedLine(); POS_CutPaper(); } } m_socket.close(); } } //////////////////////////////////////////////////////////////////////////////////////////////////////// //获取CreateFile的USB端口号 //////////////////////////////////////////////////////////////////////////////////////////////////////// // 根据GUID获得设备路径 // lpGuid: GUID指针 // pszDevicePath: 设备路径指针的指针,用于返回找到的路径 // 返回: 成功得到的设备路径个数,可能不止1个 int CPosPrinter::GetDevicePath(LPGUID lpGuid, LPTSTR* pszDevicePath) { HDEVINFO hDevInfoSet; SP_DEVINFO_DATA spDevInfoData; SP_DEVICE_INTERFACE_DATA ifData; PSP_DEVICE_INTERFACE_DETAIL_DATA pDetail; int nCount; int nTotle; BOOL bResult; wstring strUSBPrint = TEXT("USB 打印支持"); // 取得一个该GUID相关的设备信息集句柄 hDevInfoSet = ::SetupDiGetClassDevs(lpGuid, // class GUID NULL, // 无关键字 NULL, // 不指定父窗口句柄 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); // 目前存在的设备 // 失败... if(hDevInfoSet == INVALID_HANDLE_VALUE) { printf("failed \r\n"); return 0; } // 申请设备接口数据空间 pDetail = (PSP_DEVICE_INTERFACE_DETAIL_DATA)::GlobalAlloc(LMEM_ZEROINIT, INTERFACE_DETAIL_SIZE); pDetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA); nTotle = -1; nCount = 0; bResult = TRUE; // 设备序号=0,1,2... 逐一测试设备接口,到失败为止 while(bResult) { nTotle++; spDevInfoData.cbSize = sizeof(SP_DEVINFO_DATA); // 枚举符合该GUID的设备接口 bResult = ::SetupDiEnumDeviceInfo( hDevInfoSet, // 设备信息集句柄 (ULONG)nTotle, // 设备信息集里的设备序号 &spDevInfoData); // 设备接口信息 if(bResult) { DWORD DataT; TCHAR buf[MAX_PATH]; DWORD nSize = 0; // get Friendly Name or Device Description if(SetupDiGetDeviceRegistryProperty(hDevInfoSet, &spDevInfoData, SPDRP_FRIENDLYNAME, &DataT, (PBYTE)buf, sizeof(buf), &nSize)) { } else if(SetupDiGetDeviceRegistryProperty(hDevInfoSet, &spDevInfoData, SPDRP_DEVICEDESC, &DataT, (PBYTE)buf, sizeof(buf), &nSize)) { } else { lstrcpy(buf, _T("Unknown")); } _tprintf(_T("buf = %s \r\n"), buf); //是否是要找的设备类型 if(_tcscmp(buf, strUSBPrint.c_str()) != 0) { continue; } _tprintf(_T("OK\r\n")); ifData.cbSize = sizeof(ifData); // 枚舉符合該GUID的設備接口 bResult = ::SetupDiEnumDeviceInterfaces( hDevInfoSet, // 設備信息集句柄 NULL, // 不需額外的設備描述 lpGuid, // GUID (ULONG)nTotle, // 設備信息集里的設備序號 &ifData); // 設備接口信息 if(bResult) { // 取得该设备接口的细节(设备路径) bResult = SetupDiGetInterfaceDeviceDetail( hDevInfoSet, // 设备信息集句柄 &ifData, // 设备接口信息 pDetail, // 设备接口细节(设备路径) INTERFACE_DETAIL_SIZE, // 输出缓冲区大小 NULL, // 不需计算输出缓冲区大小(直接用设定值) NULL); // 不需额外的设备描述 if(bResult) { // 复制设备路径到输出缓冲区 ::_tcscpy_s(pszDevicePath[nCount], 256, pDetail->DevicePath); // 调整计数值 nCount++; _tprintf(_T("Cnt = %d,pDetail->DevicePath =%s\r\n"), nCount, pDetail->DevicePath); } } } } // 释放设备接口数据空间 ::GlobalFree(pDetail); // 关闭设备信息集句柄 ::SetupDiDestroyDeviceInfoList(hDevInfoSet); return nCount; } int CPosPrinter::WriteData(string msg) { if(m_type == 1) { DWORD dwWrite; return WriteFile(m_hPort, msg.c_str(), (DWORD)msg.length(), &dwWrite, NULL); } else { try { m_socket.write_some(boost::asio::buffer(msg.c_str(), msg.length())); } catch (const std::exception& e) { LOG_INFO(e.what()); } return 0; } } int CPosPrinter::WriteBuf(char* buf, int len) { if(m_type == 1) { DWORD dwWrite; return WriteFile(m_hPort, buf, len, &dwWrite, NULL); } else { try { m_socket.write_some(boost::asio::buffer(buf, len)); } catch (const std::exception& e) { LOG_INFO(e.what()); } return 0; } } int CPosPrinter::POS_Reset(void) { char s[2] = {0x1B, 0x40}; WriteBuf(s, 2); return 0; } int CPosPrinter::POS_FeedLine(void) { char s[1] = {0x0A}; WriteBuf(s, 1); return 0; } int CPosPrinter::POS_Feed(void) { char s[3] = { 0x1B, 0x4A, 0x00 }; WriteBuf(s, 3); return 0; } int CPosPrinter::POS_SetMotionUnit(int x, int y) { string s; s = "\x1D\x50\xB4\xB4"; WriteData(s); s = "\x1B\x53"; WriteData(s); return 0; } int CPosPrinter::POS_SET_MOVE_X() { char s2[6] = { 0x1B, 0x44, 0x0C, 0x0E, 0x17, 0x00}; WriteBuf(s2, 6); return 0; } int CPosPrinter::POS_MOVE_X() { char s[1] = { 0x09 }; WriteBuf(s, 1); return 0; } int CPosPrinter::POS_SET_ABS_X(int x, int y) { char cx = (char)(x); char cy = (char)(y); char s1[4] = { 0x1B, 0x24, cx, cy }; WriteBuf(s1, 4); return 0; } int CPosPrinter::POS_SET_PRINT_AREA(int x, int y) { char cx = (char)(x); char cy = (char)(y); char s1[4] = { 0x1D, 0x57, cx, cy }; WriteBuf(s1, 4); return 0; } /* *align_type:0 左对齐 1 居中对齐 2右对齐 **/ int CPosPrinter::POS_TextOut(string abc, bool is_double, int align_type) { if(is_double) { char s1[3] = { 0x1B, 0x21, 0x30 }; WriteBuf(s1, 3); char s2[3] = { 0x1C, 0x21, 0x0c }; WriteBuf(s2, 3); } else { char s1[3] = { 0x1B, 0x21, 0x00 }; WriteBuf(s1, 3); char s2[3] = { 0x1C, 0x57, 0x00 }; WriteBuf(s2, 3); } if(align_type == 0) { char s1[3] = { 0x1B, 0x61, 0x00 }; WriteBuf(s1, 3); } else if(align_type == 1) { char s1[3] = { 0x1B, 0x61, 0x01 }; WriteBuf(s1, 3); } else if(align_type == 2) { char s1[3] = { 0x1B, 0x61, 0x02 }; WriteBuf(s1, 3); } else { } WriteData(abc); return 0; } int CPosPrinter::POS_CutPaper() { char s[4] = { 0x1D, 0x56, 0x41, 0x00 }; WriteBuf(s, 4); return 0; } int CPosPrinter::POS_OutQRCode() { char QRCode1[8] = { 0x1d, 0x28, 0x6b, 0x03, 0x00, 0x31, 0x43, 0x05 }; char QRCode2[16] = { 0x1d, 0x28, 0x6b, 0x0b, 0x00, 0x31, 0x50, 0x30, 0x47, 0x70, 0x72, 0x69, 0x6e, 0x74, 0x65, 0x72 }; char QRCode3[8] = { 0x1d, 0x28, 0x6b, 0x03, 0x00, 0x31, 0x51, 0x30 }; WriteBuf(QRCode1, 8); WriteBuf(QRCode2, 16); WriteBuf(QRCode3, 8); return 0; } void CPosPrinter::CalWord(string s, int& nHanzi, int& nZimu) { nHanzi = 0; nZimu = 0; const char* buffer = s.c_str(); while(*buffer++ != '\0') { if(!(*buffer >= 0 && *buffer <= 127)) { //汉字 buffer++; nHanzi++; } else { //字母 nZimu++; } } } /* *规格 1:58mm 2:80mm **/ std::vectorCPosPrinter::HandleFoodname(std::string oldname, int guige) { std::vector newnameArray; int nHanzi, nZimu; CalWord(oldname, nHanzi, nZimu); int nWidth = nHanzi * 2 + nZimu; int maxWidth; if(guige == 1) { maxWidth = 15; } else { maxWidth = 28; } if(nWidth <= maxWidth) { //对于nWidth补空格 for(int i = 0; i < maxWidth - nWidth; i++) { oldname += " "; } newnameArray.push_back(oldname); return newnameArray; } //宽度大于15的情况,如果超过了,就要进行换行截取 const char* s = oldname.c_str(); int nTmp = 0; int nTotal = 0; while(*s++ != '\0') { nTmp++; nTotal++; if(!(*(s) >= 0 && *(s) <= 127)) { //汉字的情况 s++; nTmp++; nTotal++; } if(nTmp == maxWidth) { //这里开始要换行了 string newnameItem; newnameItem.assign(oldname, nTotal - nTmp, nTmp); newnameArray.push_back(newnameItem); nTmp = 0; } else if(nTmp == maxWidth - 1) { //如果是第14个了,判断下一个是不是中文,如果是的话也要换行 if(!(*(s + 1) >= 0 && *(s + 1) <= 127)) { //下一个是中文,也要换行了,补齐一个空格 string newnameItem; newnameItem.assign(oldname, nTotal - nTmp, nTmp); newnameItem += " "; newnameArray.push_back(newnameItem); nTmp = 0; } } } if(nTmp > 0) { //处理分隔后的最后一行 string newnameItem; newnameItem.assign(oldname, nTotal - nTmp, nTmp); for(int i = 0; i < maxWidth - nTmp; i++) { newnameItem += " "; } newnameArray.push_back(newnameItem); } return newnameArray; } std::string CPosPrinter::HandleFoodItemPrice(std::string oldprice, int guige) { double price = atof(oldprice.c_str()); if(price < 10.00) { //单位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } else if(price > 9.99 && price < 100.00) { //双位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } else if(price > 99.99 && price < 1000.00) { //三位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } else { //四位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } } std::string CPosPrinter::HandleFoodQuantity(std::string oldquantity, int guige) { int n = atoi(oldquantity.c_str()); if(n < 10) { if(guige == 1) { return " " + oldquantity; } else { return " " + oldquantity; } } else if(n >= 10 && n <= 99) { if(guige == 1) { return " " + oldquantity; } else { return " " + oldquantity; } } else { if(guige == 1) { return "" + oldquantity; } else { return " " + oldquantity; } } } std::string CPosPrinter::HandleFoodTotalPrice(std::string oldprice, int guige) { double price = atof(oldprice.c_str()); if(price < 10.00) { //单位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } else if(price > 9.99 && price < 100.00) { //双位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } else if(price > 99.99 && price < 1000.00) { //三位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } else { //四位数 if(guige == 1) { return " " + oldprice; } else { return " " + oldprice; } } }