var encode = require("./encoding.js")
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// var app = getApp();
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var jpPrinter = {
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createNew: function() {
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var jpPrinter = {};
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var data = [];
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//var bar = ["UPC-A", "UPC-E", "EAN13", "EAN8", "CODE39", "ITF", "CODABAR", "CODE93", "CODE128"];
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jpPrinter.name = "账单模式";
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jpPrinter.init = function() { //初始化打印机
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data.push(27)
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data.push(64)
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};
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/**
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* @description 打印文本内容
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* @param {int} align （对齐）: 0: 左对齐, 1: 居中, 2: 右对齐
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* @param {int} bold（加粗）: 0: 不加粗, 1: 加粗
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* @param {int} wsize（字体宽度）: 倍数计算, 范围[0, 7]
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* @param {int} hsize（字体高度）: 倍数计算, 范围[0, 7]
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* @param {int} reverse（反显）: 0: 不反显（黑字白底）, 1: 反显（黑底白字）
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* @param {int} underline（下划线）: 0: 没下划线, 1: 有下划线
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* @param {String} content（文本内容）
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*/
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jpPrinter.setText = function(align, bold, wsize, hsize, reverse, underline, content) {
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this.init()
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this.setSelectJustification(align)
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this.setSelectBold(bold)
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this.setSelectTextSize(wsize, hsize)
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this.setSelectReverse(reverse)
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this.setSelectUnderline(underline)
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this.setTextContent(content)
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this.setPrint()
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this.init()
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}
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//设置文本内容
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jpPrinter.setTextContent = function(content) {
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var code = new encode.TextEncoder(
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'gb18030', {
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NONSTANDARD_allowLegacyEncoding: true
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}).encode(content)
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for (var i = 0; i < code.length; ++i) {
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data.push(code[i])
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}
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}
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//设置条码宽度
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jpPrinter.setBarcodeWidth = function(width) {
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data.push(29)
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data.push(119)
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if (width > 6) {
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width = 6;
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}
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if (width < 2) {
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width = 1;
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}
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data.push(width)
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}
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/**
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* @description 打印条码
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* @param {int} align align （对齐）: 0: 左对齐, 1: 居中, 2: 右对齐
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* @param {int} type（类型）: 1: UPC-A, 2: JAN13（EAN13）, 3: JAN8（EAN8）, 4: CODE39, 5: ITF, 6: CODABAR, 7:CODE128
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* @param {int} width（宽度）: 点位计算,范围[2, 6]
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* @param {int} height（高度）: 点位计算,范围[1, 255]
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* @param {int} position（HRI字符位置）: 0: 不打印, 1: 条码上方, 2: 条码下方, 3: 条码上、下方都打印
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* @param {String} content（条码内容）: 注意不同的类型有不同的内容限制，具体看佳博ESC编程手册
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*/
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jpPrinter.setBar = function(align, type, width, height, position, content) {
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this.init()
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this.setSelectJustification(align)
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this.setBarcodeWidth(width)
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this.setBarcodeHeight(height)
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this.setBarcodePosition(position)
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this.setBarcodeContent(type, content)
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this.setPrint()
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this.init()
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}
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//设置条码高度
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jpPrinter.setBarcodeHeight = function(height) {
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data.push(29)
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data.push(104)
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data.push(height)
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}
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//HRI 字符的打印位置
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jpPrinter.setBarcodePosition = function(n) {
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/*
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0, 48 不打印
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1, 49 条码上方
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2, 50 条码下方
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3, 51 条码上、下方都打印
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*/
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data.push(29)
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data.push(72)
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data.push(n)
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}
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//设置条码内容
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jpPrinter.setBarcodeContent = function(t, content) {
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// 1: UPC-A, 2: JAN13（EAN13）, 3: JAN8（EAN8）, 4: CODE39, 5: ITF, 6: CODABAR, 7:CODE128
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var code = new encode.TextEncoder(
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'gb18030', {
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NONSTANDARD_allowLegacyEncoding: true
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}).encode(content)
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var ty = 73;
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data.push(29)
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data.push(107)
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switch (t) {
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case 1:
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ty = 65;
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break;
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case 2:
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ty = 67;
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break;
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case 3:
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ty = 68;
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break;
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case 4:
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ty = 69;
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break;
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case 5:
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ty = 70;
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break;
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case 6:
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ty = 71;
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break;
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case 7:
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ty = 73;
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break;
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}
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data.push(ty)
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data.push(parseInt(code.length))
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for (var i = 0; i < code.length; ++i) {
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data.push(code[i])
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}
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}
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//设置二维码大小
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jpPrinter.setSelectSizeOfModuleForQRCode = function(n) {
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data.push(29)
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data.push(40)
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data.push(107)
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data.push(3)
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data.push(0)
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data.push(49)
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data.push(67)
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if (n > 15) {
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n = 15
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}
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if (n < 1) {
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n = 1
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}
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data.push(n)
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}
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//设置纠错等级
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jpPrinter.setSelectErrorCorrectionLevelForQRCode = function(t) {
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/*
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n 功能 纠错能力
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48 选择纠错等级 L 7
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49 选择纠错等级 M 15
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50 选择纠错等级 Q 25
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51 选择纠错等级 H 30
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*/
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data.push(29)
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data.push(40)
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data.push(107)
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data.push(3)
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data.push(0)
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data.push(49)
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data.push(69)
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var ty = 49
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switch (t) {
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case "L":
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ty = 48
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break
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case "M":
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ty = 49
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break
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case "Q":
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ty = 50
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break
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case "H":
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ty = 51
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break
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}
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data.push(ty)
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}
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//设置二维码内容
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jpPrinter.setStoreQRCodeData = function(content) {
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var code = new encode.TextEncoder(
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'gb18030', {
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NONSTANDARD_allowLegacyEncoding: true
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}).encode(content)
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data.push(29)
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data.push(40)
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data.push(107)
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data.push(parseInt((code.length + 3) % 256))
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data.push(parseInt((code.length + 3) / 256))
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data.push(49)
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data.push(80)
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data.push(48)
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for (var i = 0; i < code.length; ++i) {
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data.push(code[i])
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}
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}
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/**
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* @description 打印二维码
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* @param {int} align（对齐）: 0: 左对齐, 1: 居中, 2: 右对齐
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* @param {int} size（尺寸）: 点位计算,范围[1, 16]
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* @param {String} error（纠错等级）: L: 纠错等级L, M: 纠错等级M, Q: 纠错等级Q, H: 纠错等级H
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* @param {String} content（二维码内容）: 注意不要超过最大字符数，超过无法打印出
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*/
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jpPrinter.setQR = function(align, size, error, content) {
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this.init()
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this.setSelectJustification(align)
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this.setSelectSizeOfModuleForQRCode(size)
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this.setSelectErrorCorrectionLevelForQRCode(error)
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this.setStoreQRCodeData(content)
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this.setPrintQRCode()
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this.init()
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}
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//打印二维码
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jpPrinter.setPrintQRCode = function() {
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data.push(29)
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data.push(40)
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data.push(107)
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data.push(3)
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data.push(0)
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data.push(49)
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data.push(81)
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data.push(48)
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}
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//移动打印位置到下一个水平定位点的位置
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jpPrinter.setHorTab = function() {
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data.push(9)
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}
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//设置绝对打印位置
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jpPrinter.setAbsolutePrintPosition = function(where) {
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data.push(27)
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data.push(36)
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data.push(parseInt(where % 256))
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data.push(parseInt(where / 256))
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}
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//设置相对横向打印位置
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jpPrinter.setRelativePrintPositon = function(where) {
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data.push(27)
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data.push(92)
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data.push(parseInt(where % 256))
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data.push(parseInt(where / 256))
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}
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//对齐方式
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jpPrinter.setSelectJustification = function(which) {
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/*
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0, 48 左对齐
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1, 49 中间对齐
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2, 50 右对齐
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*/
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data.push(27)
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data.push(97)
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data.push(which)
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}
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//是否加粗
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jpPrinter.setSelectBold = function(which) {
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/*
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0 不加粗
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1 加粗
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*/
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data.push(27)
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data.push(69)
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data.push(which)
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}
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//字符大小
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jpPrinter.setSelectTextSize = function(wsize, hsize) {
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data.push(29)
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data.push(33)
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data.push(wsize*16+hsize)
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}
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//选择/取消黑白反显打印模式
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jpPrinter.setSelectReverse = function(which) {
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/*
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0: 不反显（黑字白底）, 1: 反显（黑底白字）
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*/
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data.push(29)
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data.push(66)
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data.push(which)
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}
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//选择/取消下划线模式
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jpPrinter.setSelectUnderline = function(which) {
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/*
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0: 没下划线, 1: 有下划线
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*/
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data.push(27)
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data.push(45)
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data.push(which)
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}
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//设置左边距
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jpPrinter.setLeftMargin = function(n) {
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data.push(29)
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data.push(76)
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data.push(parseInt(n % 256))
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data.push(parseInt(n / 256))
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}
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//设置打印区域宽度
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jpPrinter.setPrintingAreaWidth = function(width) {
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data.push(29)
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data.push(87)
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data.push(parseInt(width % 256))
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data.push(parseInt(width / 256))
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}
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//设置蜂鸣器
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jpPrinter.setSound = function(n, t) {
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data.push(27)
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data.push(66)
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if (n < 0) {
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n = 1;
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} else if (n > 9) {
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n = 9;
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}
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if (t < 0) {
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t = 1;
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} else if (t > 9) {
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t = 9;
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}
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data.push(n)
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data.push(t)
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}
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//参数，画布的参数
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jpPrinter.setBitmap = function(res) {
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var height = res.height;
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var imgWidth = res.width
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var pointList = []
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var resultData = []
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data.push(29)
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data.push(118)
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data.push(48)
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data.push(0)
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data.push((parseInt((res.width + 7) / 8) * 8) / 8)
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data.push(0)
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data.push(parseInt(res.height % 256))
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data.push(parseInt(res.height / 256))
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//console.log(data)
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//console.log("temp=" + temp)
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for (var y = 0; y < height; y++) {
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for (var x = 0; x < imgWidth; x++) {
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let r = res.data[(y * imgWidth + x) * 4];
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let g = res.data[(y * imgWidth + x) * 4 + 1];
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let b = res.data[(y * imgWidth + x) * 4 + 2];
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let a = res.data[(y * imgWidth + x) * 4 + 3]
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//console.log(`当前${y}行${x}列像素,rgba值:(${r},${g},${b},${a})`)
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// 像素灰度值
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let grayColor = r * 0.299 + g * 0.587 + b * 0.114
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//灰度值大于128位
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if (grayColor > 128) {
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pointList.push(0)
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} else {
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pointList.push(1)
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}
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}
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}
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for (var i = 0; i < pointList.length; i += 8) {
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var p = pointList[i] * 128 + pointList[i + 1] * 64 + pointList[i + 2] * 32 + pointList[i +
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3] * 16 + pointList[i + 4] * 8 + pointList[i + 5] * 4 + pointList[i + 6] * 2 +
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pointList[i + 7]
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resultData.push(p)
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}
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for (var i = 0; i < resultData.length; ++i) {
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//data.push(intToByte(resultData[i]))
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data.push(resultData[i])
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}
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}
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//打印并换行
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jpPrinter.setPrint = function() {
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data.push(10)
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}
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//打印并走纸feed个单位
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jpPrinter.setPrintAndFeed = function(feed) {
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data.push(27)
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data.push(74)
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data.push(feed)
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}
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//打印并走纸row行
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jpPrinter.setPrintAndFeedRow = function(row) {
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data.push(27)
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data.push(100)
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data.push(row)
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}
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//获取打印数据
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jpPrinter.getData = function() {
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return data;
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};
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function intToByte(i) {
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// 此处关键 -- android是java平台 byte数值范围是 [-128, 127]
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// 因为java平台的byte类型是有符号的 最高位表示符号，所以数值范围固定
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// 而图片计算出来的是数值是 0 -255 属于int类型
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// 所以把int 转换成byte类型
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//#ifdef APP-PLUS
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var b = i & 0xFF;
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var c = 0;
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if (b >= 128) {
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c = b % 128;
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c = -1 * (128 - c);
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} else {
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c = b;
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}
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return c
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//#endif
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// 而微信小程序不需要，因为小程序api接收的是 无符号8位
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//#ifdef MP-WEIXIN
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return i
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//#endif
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}
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return jpPrinter;
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},
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Query: function() {
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var queryStatus = {};
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var buf;
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var dateView;
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//查询打印机实时状态
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queryStatus.getRealtimeStatusTransmission = function(n) {
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/*
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n = 1：传送打印机状态
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n = 2：传送脱机状态
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n = 3：传送错误状态
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n = 4：传送纸传感器状态
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*/
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buf = new ArrayBuffer(3)
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dateView = new DataView(buf)
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dateView.setUint8(0, 16)
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dateView.setUint8(1, 4)
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dateView.setUint8(2, n)
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queryStatus.query(buf)
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}
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queryStatus.query = function(buf) {
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wx.writeBLECharacteristicValue({
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deviceId: app.BLEInformation.deviceId,
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serviceId: app.BLEInformation.writeServiceId,
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characteristicId: app.BLEInformation.writeCharaterId,
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value: buf,
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success: function(res) {
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},
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complete: function(res) {
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//console.log(res)
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buf = null
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dateView = null;
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}
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})
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}
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return queryStatus;
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}
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};
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module.exports.jpPrinter = jpPrinter;
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