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- /**
- * tsc 命令打印工具类
- * 2021.04.26 uni-app版本
- * @auth boolTrue
- */
- var encode = require("./encoding.js");
- var jpPrinter = {
- createNew: function() {
- var jpPrinter = {};
- var data = "";
- var command = []
- var rawCommand = ''
- jpPrinter.name = "标签模式";
- jpPrinter.init = function() {};
- jpPrinter.addCommand = function(content) { //将指令转成数组装起
- var code = new encode.TextEncoder(
- 'gb18030', {
- NONSTANDARD_allowLegacyEncoding: true
- }).encode(content)
- for (var i = 0; i < code.length; ++i) {
- command.push(code[i])
- }
-
- //#ifdef APP-PLUS
- // let byteCommand = plus.android.invoke(content, 'getBytes', 'gb18030');
- // for (var i = 0; i < byteCommand.length; ++i) {
- // command.push(byteCommand[i])
- // }
- //#endif
-
- //console.log('command--:',command)
- rawCommand += content
- }
-
- function intToByte(i) {
- // 此处关键 -- android是java平台 byte数值范围是 [-128, 127]
- // 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
- // 而图片计算出来的是数值是 0 -255 属于int类型
- // 所以把int 转换成byte类型
- //#ifdef APP-PLUS
- var b = i & 0xFF;
- var c = 0;
- if (b >= 128) {
- c = b % 128;
- c = -1 * (128 - c);
- } else {
- c = b;
- }
- return c
- //#endif
- // 而微信小程序不需要,因为小程序api接收的是 无符号8位
- //#ifdef MP-WEIXIN
- return i
- //#endif
- }
- jpPrinter.setSize = function(pageWidght, pageHeight) { //设置页面大小
- data = "SIZE " + pageWidght.toString() + " mm" + "," + pageHeight.toString() + " mm" + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setSpeed = function(printSpeed) { //设置打印机速度
- data = "SPEED " + printSpeed.toString() + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setDensity = function(printDensity) { //设置打印机浓度
- data = "DENSITY " + printDensity.toString() + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setGap = function(printGap) { //传感器
- data = "GAP " + printGap.toString() + " mm\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setCountry = function(country) { //选择国际字符集
- /*
- 001:USA
- 002:French
- 003:Latin America
- 034:Spanish
- 039:Italian
- 044:United Kingdom
- 046:Swedish
- 047:Norwegian
- 049:German
- */
- data = "COUNTRY " + country + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setCodepage = function(codepage) { //选择国际代码页
- /*
- 8-bit codepage 字符集代表
- 437:United States
- 850:Multilingual
- 852:Slavic
- 860:Portuguese
- 863:Canadian/French
- 865:Nordic
- Windows code page
- 1250:Central Europe
- 1252:Latin I
- 1253:Greek
- 1254:Turkish
- 以下代码页仅限于 12×24 dot 英数字体
- WestEurope:WestEurope
- Greek:Greek
- Hebrew:Hebrew
- EastEurope:EastEurope
- Iran:Iran
- IranII:IranII
- Latvian:Latvian
- Arabic:Arabic
- Vietnam:Vietnam
- Uygur:Uygur
- Thai:Thai
- 1252:Latin I
- 1257:WPC1257
- 1251:WPC1251
- 866:Cyrillic
- 858:PC858
- 747:PC747
- 864:PC864
- 1001:PC100
- */
- data = "CODEPAGE " + codepage + "\r\n";
- jpPrinter.addCommand(data)
- }
- jpPrinter.setCls = function() { //清除打印机缓存
- data = "CLS" + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setFeed = function(feed) { //将纸向前推出n
- data = "FEED " + feed + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setBackFeed = function(backup) { //将纸向后回拉n
- data = "BACKFEED " + backup + "\r\n";
- jpPrinter.addCommand(data)
- }
- jpPrinter.setDirection = function(direction) { //设置打印方向,参考编程手册
- data = "DIRECTION " + direction + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setReference = function(x, y) { //设置坐标原点,与打印方向有关
- data = "REFERENCE " + x + "," + y + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setFromfeed = function() { //根据Size进一张标签纸
- data = "FORMFEED \r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setHome = function() { //根据Size找到下一张标签纸的位置
- data = "HOME \r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setSound = function(level, interval) { //控制蜂鸣器
- data = "SOUND " + level + "," + interval + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setLimitfeed = function(limit) { // 检测垂直间距
- data = "LIMITFEED " + limit + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setBar = function(x, y, width, height) { //绘制线条
- data = "BAR " + x + "," + y + "," + width + "," + height + "\r\n"
- jpPrinter.addCommand(data)
- };
- jpPrinter.setBox = function(x_start, y_start, x_end, y_end, thickness) { //绘制方框
- data = "BOX " + x_start + "," + y_start + "," + x_end + "," + y_end + "," + thickness + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setErase = function(x_start, y_start, x_width, y_height) { //清除指定区域的数据
- data = "ERASE " + x_start + "," + y_start + "," + x_width + "," + y_height + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setReverse = function(x_start, y_start, x_width, y_height) { //将指定的区域反相打印
- data = "REVERSE " + x_start + "," + y_start + "," + x_width + "," + y_height + "\r\n";
- jpPrinter.addCommand(data)
- };
- jpPrinter.setText = function(x, y, font, x_, y_, str) { //打印文字
- data = "TEXT " + x + "," + y + ",\"" + font + "\"," + 0 + "," + x_ + "," + y_ + "," + "\"" +
- str + "\"\r\n"
- jpPrinter.addCommand(data)
- };
- jpPrinter.setQR = function(x, y, level, width, mode, content) { //打印二维码
- data = "QRCODE " + x + "," + y + "," + level + "," + width + "," + mode + "," + 0 + ",\"" +
- content + "\"\r\n"
- jpPrinter.addCommand(data)
- };
- jpPrinter.setBar = function(x, y, codetype, height, readable, narrow, wide, content) { //打印条形码
- data = "BARCODE " + x + "," + y + ",\"" + codetype + "\"," + height + "," + readable + "," + 0 +
- "," + narrow + "," + wide + ",\"" + content + "\"\r\n"
- jpPrinter.addCommand(data)
- };
- // 固定灰度阈值(128以上的都看作白色)
- jpPrinter.setBitmap = function(x, y, mode, res) { //添加图片,res为画布参数
- var width = parseInt((res.width) / 8 * 8 / 8)
- var height = res.height
- var imgWidth = res.width
- var time = 1;
- var temp = res.data.length - width * 32;
- var pointList = []
- var resultData = []
- console.log(width + "--" + height)
- data = "BITMAP " + x + "," + y + "," + width + "," + height + "," + mode + ","
- jpPrinter.addCommand(data)
- //console.log(res.data)
- console.log('---以上是原始数据---')
- //for循环顺序不要错了,外层遍历高度,内层遍历宽度,因为横向每8个像素点组成一个字节
- for (var y = 0; y < height; y++) {
- for (var x = 0; x < imgWidth; x++) {
- let r = res.data[(y * imgWidth + x) * 4];
- let g = res.data[(y * imgWidth + x) * 4 + 1];
- let b = res.data[(y * imgWidth + x) * 4 + 2];
- let a = res.data[(y * imgWidth + x) * 4 + 3]
- //console.log(`当前${y}行${x}列像素,rgba值:(${r},${g},${b},${a})`)
- // 像素灰度值
- let grayColor = r * 0.299 + g * 0.587 + b * 0.114
- //灰度值大于128位
- //1不打印, 0打印 (参考:佳博标签打印机编程手册tspl)
- if (grayColor > 128) {
- pointList.push(1)
- } else {
- pointList.push(0)
- }
- }
- }
- //console.log(pointList)
- for (var i = 0; i < pointList.length; i += 8) {
- var p = pointList[i] * 128 + pointList[i + 1] * 64 + pointList[i + 2] * 32 + pointList[i +
- 3] * 16 + pointList[i + 4] * 8 + pointList[i + 5] * 4 + pointList[i + 6] * 2 +
- pointList[i + 7]
- resultData.push(p)
- }
- console.log('最终数据:')
- //console.log(resultData)
- for (var i = 0; i < resultData.length; ++i) {
- command.push(intToByte(resultData[i]))
- }
- }
-
- jpPrinter.setBitmap2 = function(x, y, mode, res) { //添加图片,res为画布参数
- var w = res.width
- var width = parseInt((res.width + 7) / 8 * 8 / 8)
- var height = res.height;
- console.log(width + "--" + height)
- data = "BITMAP " + x + "," + y + "," + width + "," + height + "," + mode + ","
- jpPrinter.addCommand(data)
- var r = []
- var bits = new Uint8Array(height * width);
- for (y = 0; y < height; y++) {
- for (x = 0; x < w; x++) {
- let r = res.data[(y * w + x) * 4];
- let g = res.data[(y * w + x) * 4 + 1];
- let b = res.data[(y * w + x) * 4 + 2];
- let a = res.data[(y * w + x) * 4 + 3]
- var color = ((a & 0xFF) << 24) | ((r & 0xFF) << 16) | ((g & 0xFF) << 8) | ((b & 0xFF) <<
- 0);
- if ((color & 0xFF) > 128) {
- bits[parseInt(y * width + x / 8)] |= (0x80 >> (x % 8));
- }
- }
- }
- for (var i = 0; i < bits.length; i++) {
- //command.push((~bits[i]) & 0xFF);
- command.push(intToByte(bits[i]));
- //r.push((~bits[i]) & 0xFF);
- }
- }
- // 平均灰度阈值(先计算平均灰度,然后大于平均灰度的都算作白色)
- jpPrinter.setBitmap3 = function(x, y, mode, res) { //添加图片,res为画布参数
- var width = parseInt((res.width) / 8 * 8 / 8)
- var height = res.height
- var imgWidth = res.width
- var time = 1;
- var temp = res.data.length - width * 32;
- var pointList = []
- var resultData = []
- console.log(width + "--" + height)
- data = "BITMAP " + x + "," + y + "," + width + "," + height + "," + mode + ","
- jpPrinter.addCommand(data)
- //console.log(res.data)
- console.log('---以上是原始数据---')
- let sumRed = 0,
- sumGreen = 0,
- sumBlue = 0;
- let total = height * imgWidth;
- let pix = res.data;
- for (var i = 0; i < pix.length; i += 4) {
- sumRed += pix[i]
- sumGreen += pix[i + 1]
- sumBlue += pix[i + 2]
- }
- let avgRed = parseInt(sumRed / total);
- let avgGreen = parseInt(sumGreen / total);
- let avgBlue = parseInt(sumBlue / total);
- let avgGrayColor = avgRed * 0.299 + avgGreen * 0.587 + avgBlue * 0.114
- //for循环顺序不要错了,外层遍历高度,内层遍历宽度,因为横向每8个像素点组成一个字节
- for (var y = 0; y < height; y++) {
- for (var x = 0; x < imgWidth; x++) {
- let r = res.data[(y * imgWidth + x) * 4];
- let g = res.data[(y * imgWidth + x) * 4 + 1];
- let b = res.data[(y * imgWidth + x) * 4 + 2];
- let a = res.data[(y * imgWidth + x) * 4 + 3]
- // 像素灰度值
- let grayColor = r * 0.299 + g * 0.587 + b * 0.114
- //灰度值大于128位
- //1不打印, 0打印 (参考:佳博标签打印机编程手册tspl)
- if (grayColor > avgGrayColor) {
- pointList.push(1)
- } else {
- pointList.push(0)
- }
- }
- }
- //console.log(pointList)
- for (var i = 0; i < pointList.length; i += 8) {
- var p = pointList[i] * 128 + pointList[i + 1] * 64 + pointList[i + 2] * 32 + pointList[i +
- 3] * 16 + pointList[i + 4] * 8 + pointList[i + 5] * 4 + pointList[i + 6] * 2 +
- pointList[i + 7]
- resultData.push(p)
- }
- console.log('最终数据:')
- //console.log(resultData)
- for (var i = 0; i < resultData.length; ++i) {
- command.push(intToByte(resultData[i]))
- }
- }
- jpPrinter.RawCommand = function(data) {
- jpPrinter.addCommand(data)
- }
- jpPrinter.setPagePrint = function(m,n) { //打印页面
- data = "PRINT "+m+","+n+"\r\n"
- jpPrinter.addCommand(data)
- };
- //获取打印数据
- jpPrinter.getData = function() {
- return command;
- };
- jpPrinter.getRawData = function() {
- return rawCommand;
- };
- jpPrinter.clearCommand = function() {
- rawCommand = ''
- };
- return jpPrinter;
- }
- };
- module.exports.jpPrinter = jpPrinter;
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