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components/tpx-bluetooth-print/print/encoding-indexes.js
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components/tpx-bluetooth-print/print/encoding-indexes.js
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components/tpx-bluetooth-print/print/encoding.js
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components/tpx-bluetooth-print/print/encoding.js
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@ -6,6 +6,62 @@
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//蓝牙打印机一次接收的二级制数据有限制,不同的系统不同的蓝牙设备限制可能不同,微信建议一次20个字节,需做递归分包发送
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//发送完要打印的内容后,一定要发送一个打印的指令才能顺利打印 (有些指令就不需要)
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export function senBlData(uint8Array) {
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let that = this
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var uint8Buf = Array.from(uint8Array);
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function split_array(datas, size) {
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var result = {};
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var j = 0
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for (var i = 0; i < datas.length; i += size) {
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result[j] = datas.slice(i, i + size)
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j++
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}
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return result
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}
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var sendloop = split_array(uint8Buf, 20);
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function realWriteData(sendloop, i) {
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var data = sendloop[i]
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if (typeof(data) == "undefined") {
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uni.showLoading({
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title: '数据发送完毕,准备打印',
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icon: 'loading',
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})
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setTimeout(function() {
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uni.hideLoading()
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}, 1000);
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return
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}
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// console.log("第【" + i + "】次写数据"+data)
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var buffer = new ArrayBuffer(data.length)
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var dataView = new DataView(buffer)
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for (var j = 0; j < data.length; j++) {
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dataView.setUint8(j, data[j]);
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}
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uni.writeBLECharacteristicValue({
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deviceId: that.deviceId,
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serviceId: that.writeServiceId,
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characteristicId: that.writeCharaterId,
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value: buffer,
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success(res) {
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realWriteData(sendloop, i + 1);
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},
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fail() {
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uni.showLoading({
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title: '发送数据失败',
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icon: 'loading',
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})
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setTimeout(function() {
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uni.hideLoading()
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}, 1000);
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}
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})
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}
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var i = 0;
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realWriteData(sendloop, i);
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}
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// 发送数据(递归分包发送)
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/**
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@ -21,7 +77,7 @@
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lasterSuccess,
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}
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*/
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export function sendDataToDevice(options) {
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let byteLength = options.value.byteLength;
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// 这里默认一次20个字发送
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components/tpx-bluetooth-print/print/tanexPrinterUniSdk.js
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components/tpx-bluetooth-print/print/tanexPrinterUniSdk.js
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/**
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tanexPrinter 打印指令
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var tanexPrinterUniSdk = require('xxxx/tanexPrinterUniSdk.js')
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var tanexPrinter = tanexPrinterUniSdk.tanexPrinter.createInstance()
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// 设置热敏纸高度 130
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tanexPrinter.init(130)
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// 渲染位图,添加图片到打印
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tanexPrinter.addBitmap(0, 0, res)
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// 设置打印指令
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tanexPrinter.setPagePrint()
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// 数据发送到蓝牙设备
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tanexPrinter.senBlData(tanexPrinter.getPrintCmd())
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*/
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var encode = require("./encoding.js");
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var tanexPrinter = {
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createInstance: function() {
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var tanexPrinter = {};
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var data = "";
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var command = []
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tanexPrinter.name = "tanex-CPCL打印";
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/*
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[名称] 开始命令
[格式] ! {offset} 200 200 {height} {qty}
[说明] {offset}:整个标签的水平偏移量
200:水平分辨率,203 点/英寸(8 点/mm)
200:垂直分辨率,203 点/英寸(8 点/mm)
{height}:标签最大高度,点为单位
{qty}:打印标签的数量,最大1024 张
[实例] Input: Output:
! 0 200 200 210 1
TEXT 4 0 30 40 Hello World Hello World
FORM
PRINT
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*/
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tanexPrinter.init = function(maxHeight) {
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data = "! 0 200 200 " + maxHeight + " 1\r\n"
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tanexPrinter.addCommand(data)
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};
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/**
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* 获取面单数据,用于图片预览
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* @param {Object} billCode 运单号,多个 逗号隔开
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* @param {Object} tplCode 模版代码 多个 逗号隔开
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*/
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tanexPrinter.getPrintData = function(billCode,tplCode) {
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let rstList=[];
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return rstList;
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};
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//指令组装成数组模式
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tanexPrinter.addCommand = function(content) {
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// console.log(content, 'contentcontentcontent')
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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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command.push(code[i])
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}
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}
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/*
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添加图片,res为画布参数:{height:height,width:width,data:data}
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[名称] 图形命令
[格式] {command} {width} {height} {x} {y} {data}
[说明] {command}:选择下面指令
EXPANDED-GRAPHICS (or EG): 打印扩展图形
COMPRESSED-GRAPHICS (or CG): 打印压缩图形
{ width }:图像宽度,以字节为单位
{ height }:图像高度,以点为单位
{x}: 水平起始位置
{y}: 垂直起始位置
{data}: 图形数据
二值位图可以通过图形命令进行打印。使用扩展图形指令(EXPANDED-GRAPHICS),
图形数据为ASCII 码,如实例所示。如果想要图形数据减半则需要使用压缩图形指令
(COMPRESSED-GRAPHICS),图形数据为直接的十六进制数据。当使用CG 指令时,
每一个8 位的字节表示8 点的图形数据,当使用EG 指令时,每两个字节(16 位)表示
8 点的图形数据。EG 的效率为CG 的一半。
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*/
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tanexPrinter.addBitmap = function(x, y, res) {
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var w = res.width
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var width = parseInt((res.width + 7) / 8 * 8 / 8)
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var height = res.height;
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// console.log(width + "--" + height)
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data = "CG " + width + " " + height + " " + x + " " + y + " "
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tanexPrinter.addCommand(data)
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// console.log(command)
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var r = []
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var bits = new Uint8Array(height * width);
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for (y = 0; y < height; y++) {
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for (x = 0; x < w; x++) {
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var color = res.data[(y * w + x) * 4 + 1];
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if (color > 128) {
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bits[parseInt(y * width + x / 8)] |= (0x80 >> (x % 8));
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}
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}
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}
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for (var i = 0; i < bits.length; i++) {
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command.push((~bits[i]) & 0xFF);
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r.push((~bits[i]) & 0xFF);
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}
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// console.log('===>setBitmapCmd:',JSON.stringify(r))
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}
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/*
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[名称] 设置打印命令
[格式] {command}
[说明] {command}:PRINT
在CPCL 指令模式下,打印命令终止和打印文件,这是最后的一条命令;执行打印命
令后,打印机退出控制段,在打印命令后,必须跟一个回车。
如果打印中出错,等待错误恢复后重新打印。
[实例] Input:
! 0 200 200 210 1
……………
PRINT
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*/
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tanexPrinter.setPagePrint = function() {
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data = "PRINT\r\n"
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tanexPrinter.addCommand(data)
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};
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tanexPrinter.diyCode = function(content) { //自定义指令
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tanexPrinter.addCommand(content)
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};
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tanexPrinter.pushCode = function(content) { //推送指令
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content.forEach((el)=>{
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command.push(el)
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})
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// command = command.concat(content)
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};
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//获取打印数据
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tanexPrinter.getPrintCmd = function() {
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return command;
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};
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return tanexPrinter;
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}
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};
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module.exports.tanexPrinter = tanexPrinter;
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<script>
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import { showLoading, showToast, hideLoading, canvasGetImageData, getImageInfo, promiseTimeout } from "@/common/untool"
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import * as canvasUtil from "@/common/canvasUtil"
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import tanexPrinterUniSdk from './print/tanexPrinterUniSdk'
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import * as printJob from './print/printJob'
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export default {
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"license": "MIT",
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"dependencies": {
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"dayjs": "^1.11.10",
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"file-saver": "2.0.5"
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"file-saver": "2.0.5",
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"pdf-lib": "^1.17.1"
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},
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"dcloudext": {
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"category": [
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