smart_campus_uni/components/nativePrint/libs/esc.js

var encode = require("./encoding.js")
var jpPrinter = {
	createNew: function() {
		var jpPrinter = {};
		var data = [];

		var bar = ["UPC-A", "UPC-E", "EAN13", "EAN8", "CODE39", "ITF", "CODABAR", "CODE93", "CODE128"];

		jpPrinter.name = "账单模式";

		jpPrinter.init = function() { //初始化打印机
			data.push(27)
			data.push(64)
		};

		jpPrinter.setText = function(content) { //设置文本内容
			var code = new encode.TextEncoder(
				'gb18030', {
					NONSTANDARD_allowLegacyEncoding: true
				}).encode(content)
			for (var i = 0; i < code.length; ++i) {
				data.push(code[i])
			}
		}

		jpPrinter.setBarcodeWidth = function(width) { //设置条码宽度
			data.push(29)
			data.push(119)
			if (width > 6) {
				width = 6;
			}
			if (width < 2) {
				width = 1;
			}
			data.push(width)
		}

		jpPrinter.setBarcodeHeight = function(height) { //设置条码高度
			data.push(29)
			data.push(104)
			data.push(height)
		}

		jpPrinter.setBarcodeContent = function(t, content) {
			var ty = 73;
			data.push(29)
			data.push(107)
			switch (t) {
				case bar[0]:
					ty = 65;
					break;
				case bar[1]:
					ty = 66;
					break;
				case bar[2]:
					ty = 67;
					break;
				case bar[3]:
					ty = 68;
					break;
				case bar[4]:
					ty = 69;
					break;
				case bar[5]:
					ty = 70;
					break;
				case bar[6]:
					ty = 71;
					break;
				case bar[7]:
					ty = 72;
					break;
				case bar[8]:
					ty = 73;
					break;
			}
			data.push(ty)
		}

		jpPrinter.setSelectSizeOfModuleForQRCode = function(n) { //设置二维码大小
			data.push(29)
			data.push(40)
			data.push(107)
			data.push(3)
			data.push(0)
			data.push(49)
			data.push(67)
			if (n > 15) {
				n = 15
			}
			if (n < 1) {
				n = 1
			}
			data.push(n)
		}

		jpPrinter.setSelectErrorCorrectionLevelForQRCode = function(n) { //设置纠错等级
			/*
			n      功能      纠错能力
			48 选择纠错等级 L 7
			49 选择纠错等级 M 15
			50 选择纠错等级 Q 25
			51 选择纠错等级 H 30
			*/
			data.push(29)
			data.push(40)
			data.push(107)
			data.push(3)
			data.push(0)
			data.push(49)
			data.push(69)
			data.push(n)
		}

		jpPrinter.setStoreQRCodeData = function(content) { //设置二维码内容
			var code = new encode.TextEncoder(
				'gb18030', {
					NONSTANDARD_allowLegacyEncoding: true
				}).encode(content)
			data.push(29)
			data.push(40)
			data.push(107)
			data.push(parseInt((code.length + 3) % 256))
			data.push(parseInt((code.length + 3) / 256))
			data.push(49)
			data.push(80)
			data.push(48)

			for (var i = 0; i < code.length; ++i) {
				data.push(code[i])
			}
		}

		jpPrinter.setPrintQRCode = function() { //打印二维码
			data.push(29)
			data.push(40)
			data.push(107)
			data.push(3)
			data.push(0)
			data.push(49)
			data.push(81)
			data.push(48)
		}

		jpPrinter.setHorTab = function() { //移动打印位置到下一个水平定位点的位置
			data.push(9)
		}

		jpPrinter.setAbsolutePrintPosition = function(where) { //设置绝对打印位置
			data.push(27)
			data.push(36)
			data.push(parseInt(where % 256))
			data.push(parseInt(where / 256))
		}

		jpPrinter.setRelativePrintPositon = function(where) { //设置相对横向打印位置
			data.push(27)
			data.push(92)
			data.push(parseInt(where % 256))
			data.push(parseInt(where / 256))
		}

		jpPrinter.setSelectJustification = function(which) { //对齐方式
			/*
			0, 48 左对齐
			1, 49 中间对齐
			2, 50 右对齐
			*/
			data.push(27)
			data.push(97)
			data.push(which)
		}

		jpPrinter.setLeftMargin = function(n) { //设置左边距
			data.push(29)
			data.push(76)
			data.push(parseInt(n % 256))
			data.push(parseInt(n / 256))
		}

		jpPrinter.setPrintingAreaWidth = function(width) { //设置打印区域宽度
			data.push(29)
			data.push(87)
			data.push(parseInt(width % 256))
			data.push(parseInt(width / 256))
		}

		jpPrinter.setSound = function(n, t) { //设置蜂鸣器
			data.push(27)
			data.push(66)
			if (n < 0) {
				n = 1;
			} else if (n > 9) {
				n = 9;
			}

			if (t < 0) {
				t = 1;
			} else if (t > 9) {
				t = 9;
			}
			data.push(n)
			data.push(t)
		}

		jpPrinter.setBitmap = function(res) { //参数，画布的参数
			console.log(res)
			var width = parseInt((res.width + 7) / 8 * 8 / 8)
			var height = res.height;
			var time = 1;
			var temp = res.data.length - width * 32;
			var point_list = []
			console.log(width + "--" + height)
			data.push(29)
			data.push(118)
			data.push(48)
			data.push(0)
			data.push((parseInt((res.width + 7) / 8) * 8) / 8)
			data.push(0)
			data.push(parseInt(res.height % 256))
			data.push(parseInt(res.height / 256))
			console.log(res.data.length)
			console.log("temp=" + temp)
			for (var i = 0; i < height; ++i) {
				for (var j = 0; j < width; ++j) {
					for (var k = 0; k < 32; k += 4) {
						var po = {}
						if (res.data[temp] == 0 && res.data[temp + 1] == 0 && res.data[temp + 2] == 0 && res
							.data[temp + 3] == 0) {
							po.point = 0;
						} else {
							po.point = 1;
						}
						point_list.push(po)
						temp += 4
					}
				}
				time++
				temp = res.data.length - width * 32 * time
			}
			for (var i = 0; i < point_list.length; i += 8) {
				var p = point_list[i].point * 128 + point_list[i + 1].point * 64 + point_list[i + 2].point *
					32 + point_list[i + 3].point * 16 + point_list[i + 4].point * 8 + point_list[i + 5]
					.point * 4 + point_list[i + 6].point * 2 + point_list[i + 7].point
				data.push(p)
			}
		}

		jpPrinter.setPrint = function() { //打印并换行
			data.push(10)
		}

		jpPrinter.setPrintAndFeed = function(feed) { //打印并走纸feed个单位
			data.push(27)
			data.push(74)
			data.push(feed)
		}

		jpPrinter.setPrintAndFeedRow = function(row) { //打印并走纸row行
			data.push(27)
			data.push(100)
			data.push(row)
		}

		jpPrinter.getData = function() { //获取打印数据
			return data;
		};


		return jpPrinter;
	},

	Query: function() {
		var queryStatus = {};
		var buf;
		var dateView;
		queryStatus.getRealtimeStatusTransmission = function(n) { //查询打印机实时状态
			/*
			n = 1：传送打印机状态
			n = 2：传送脱机状态
			n = 3：传送错误状态
			n = 4：传送纸传感器状态
			*/
			buf = new ArrayBuffer(3)
			dateView = new DataView(buf)
			dateView.setUint8(0, 16)
			dateView.setUint8(1, 4)
			dateView.setUint8(2, n)
			queryStatus.query(buf)
		}

		queryStatus.query = function(buf) {
			wx.writeBLECharacteristicValue({
				deviceId: app.BLEInformation.deviceId,
				serviceId: app.BLEInformation.writeServiceId,
				characteristicId: app.BLEInformation.writeCharaterId,
				value: buf,
				success: function(res) {

				},
				complete: function(res) {
					console.log(res)
					buf = null
					dateView = null;
				}
			})
		}
		return queryStatus;
	}

};

module.exports.jpPrinter = jpPrinter;