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723 lines
19 KiB
723 lines
19 KiB
/**
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* @export
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* @param {string} name 微信api的名称 ，如 uniAsyncPromise("getSystemInfo",options)
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* @param {object} options 除了success 和 fail 的其他参数
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* @returns
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*/
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export function uniAsyncPromise(name, options) {
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return new Promise((resolve, reject) => {
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uni[name]({
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...(options || {}),
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// ...options,
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success: (res) => {
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resolve(res);
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},
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fail: (err) => {
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reject(err);
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}
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});
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});
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}
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//微信小程序向蓝牙打印机发送数据进行打印的坑：
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//小程序api向蓝牙打印机发送数据打印，发送的任何内容都应该要转成二进制数据，而且蓝牙打印的文本编码是GBK的，发送中文需转成GBK编码再转成二进制数据发送
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//发送打印机指令也要转成二进制数据发送
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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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//一、初始化蓝牙、开始检索蓝牙设备
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// { allowDuplicatesKey: true, interval: 500}
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export function openBlue() {
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return uniAsyncPromise('openBluetoothAdapter')
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}
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export function startBluetoothDevicesDiscovery(option) {
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console.log('开始蓝牙扫描');
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uniAsyncPromise('startBluetoothDevicesDiscovery', option).then((res) => {
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console.log('正在搜寻蓝牙设备', res);
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});
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}
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export function getConnectedBluetoothDevices(option) {
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console.log('开始获取已连接设备');
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return uniAsyncPromise('getConnectedBluetoothDevices', option)
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}
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//二、
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/**
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*
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*
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* @export
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* @param {function} getDevices uni.getBluetoothDevices的监听回调函数
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*/
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export function onfindBlueDevices(getDevices) {
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//监听寻找到新设备的事件
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uni.onBluetoothDeviceFound((devices)=>{
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//获取在蓝牙模块生效期间所有已发现的蓝牙设备
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uniAsyncPromise('getBluetoothDevices').then((res) => {
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getDevices && getDevices(res.devices);
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});
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});
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}
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/**
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* @export
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* @param {function} stopBlueDevicesDiscovery 关闭蓝牙扫描
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*/
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export function stopBlueDevicesDiscovery() {
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//监听寻找到新设备的事件
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console.log('停止蓝牙扫描');
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return uniAsyncPromise('stopBluetoothDevicesDiscovery').then((res) => {
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console.log('停止搜寻蓝牙设备', res);
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});
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}
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//三、连接蓝牙设备
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/**
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* @export
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* @param {function} createBLEConnection
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* @param {number} deviceId 蓝牙设备id
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*/
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export function createBLEConnection(deviceId, sucess, fail) {
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//连接蓝牙设备
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console.log('连接蓝牙设备', deviceId);
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uniAsyncPromise("createBLEConnection", {
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deviceId
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})
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.then(res => {
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//连接成功可选择停止搜索蓝牙
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//stopBlueDevicesDiscovery();
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console.log('连接成功');
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sucess && sucess({
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res: res,
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});
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})
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.catch(res => {
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console.log('连接设备异常' + res);
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fail && fail({
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res: res,
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});
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})
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/*.finally(res=>{
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console.log('连接成功');
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sucess && sucess({
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res: res,
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});
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});*/
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}
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export function closeBLEConnection(deviceId) {
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console.log('断开蓝牙设备', deviceId);
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uniAsyncPromise("closeBLEConnection", {
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deviceId
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})
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.then(res => {
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console.log('BLEDisconnect complete', res);
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})
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.catch(res => {
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console.log('断开设备异常' + res);
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})
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/*.finally(res=>{
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console.log('BLEDisconnect complete', res);
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}); */
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}
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//四、连接成功后， 获取蓝牙设备的service服务
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// uniAsyncPromise("getBLEDeviceServices",{deviceId:""}).then(res=>{})
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export function getBLEDeviceServices(deviceId, success, fail) {
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console.log('获取ServiceId', deviceId);
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//加延迟避免取不到service
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setTimeout(()=>{
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uniAsyncPromise("getBLEDeviceServices", {
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deviceId:deviceId
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})
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.then(res => {
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console.log('服务', res);
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success && success({
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serviceId: res.services,
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});
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})
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.catch((res) => {
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//getBLEDeviceServices(deviceId, success, fail);
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console.log('获取ServiceId异常' + res);
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fail && fail({
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res: res,
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});
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});
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},1000)
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}
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//五、获取的service服务可能有多个，递归获取特征值（最后要用的是能读，能写，能监听的那个值的uuid作为特征值id）
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/**
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*
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*
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* @export
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* @param {number} deviceId 蓝牙设备id
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* @param {array} services uniAsyncPromise("getBLEDeviceServices",{deviceId:""}).then(res=>{})获取的res.services
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* @param {function} success 成功取得有用特征值uuid的回调函数
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*/
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export function getDeviceCharacteristics(deviceId, services, success, fail) {
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//services = services.slice(0);
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console.log('获取Characteristics', deviceId, services);
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if (services.length) {
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const serviceId = services.shift().uuid;
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console.log('ServceID ', serviceId);
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uniAsyncPromise('getBLEDeviceCharacteristics', {
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deviceId,
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serviceId,
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})
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.then((res) => {
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console.log('getBLEDeviceCharacteristics', deviceId, serviceId, res);
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let finished = false;
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let write = false;
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let notify = false;
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let indicate = false;
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var readId;
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var writeId;
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//有斑马品牌的一款打印机中res.characteristics的所有uuid都是相同的，找所有的properties存在(notify || indicate) && write这种情况就说明这个uuid是可用的（不确保所有的打印机都能用这种方式取得uuid,在主要测试得凯盛诺打印机res.characteristic只有一个uuid,所以也能用这个方式）
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for (var i = 0; i < res.characteristics.length; i++) {
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if (!notify) {
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notify = res.characteristics[i].properties.notify;
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if (notify) readId = res.characteristics[i].uuid;
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}
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if (!indicate) {
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indicate = res.characteristics[i].properties.indicate;
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if (indicate) readId = res.characteristics[i].uuid;
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}
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if (!write) {
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write = res.characteristics[i].properties.write;
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writeId = res.characteristics[i].uuid;
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}
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if ((notify || indicate) && write) {
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/* 获取蓝牙特征值uuid */
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success &&
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success({
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serviceId,
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writeId: writeId,
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readId: readId,
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});
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finished = true;
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break;
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}
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}
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if (!finished) {
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getDeviceCharacteristics(deviceId, services, success, fail);
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}
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})
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.catch((res) => {
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getDeviceCharacteristics(deviceId, services, success, fail);
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});
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} else {
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fail && fail();
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}
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}
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//六、启动notify 蓝牙监听功能 然后使用 uni.onBLECharacteristicValueChange用来监听蓝牙设备传递数据
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/**
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* @export
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* @param {object} options
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* {
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deviceId,//蓝牙设备id
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serviceId,//服务id
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characteristicId,//可用特征值uuid
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}
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* @param {function} onChange 监听蓝牙设备传递数据回调函数
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*/
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export function onGetBLECharacteristicValueChange(options, onChange = function() {}) {
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console.log('deviceId ', options.deviceId);
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console.log('serviceId ', options.serviceId);
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console.log('characteristicId ', options.characteristicId);
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uniAsyncPromise('notifyBLECharacteristicValueChange', {
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state: true,
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...options,
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}).then((res) => {
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console.log('onBLECharacteristicValueChange ');
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uni.onBLECharacteristicValueChange(onChange);
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});
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}
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//七、发送数据(递归分包发送)
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/**
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* @export
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* @param {object} options
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* {
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deviceId,
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serviceId,
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characteristicId,
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value [ArrayBuffer],
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lasterSuccess,
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onceLength
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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个字节发送
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const speed = options.onceLength; //20;
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console.log("send data 20");
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console.log(options);
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if (byteLength > 0) {
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uniAsyncPromise('writeBLECharacteristicValue', {
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...options,
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value: options.value.slice(0, byteLength > speed ? speed : byteLength),
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})
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.then((res) => {
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if (byteLength > speed) {
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sendDataToDevice({
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...options,
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value: options.value.slice(speed, byteLength),
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});
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} else {
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options.lasterSuccess && options.lasterSuccess();
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}
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})
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.catch((res) => {
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console.log(res);
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});
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}
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}
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export function charToArrayBuffer(str) {
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var out = new ArrayBuffer(str.length);
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var uint8 = new Uint8Array(out);
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var strs = str.split('');
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for (var i = 0; i < strs.length; i++) {
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uint8[i] = strs[i].charCodeAt();
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}
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return uint8;
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}
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export function charToArray(str) {
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var arr = [];
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var strs = str.split('');
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for (var i = 0; i < strs.length; i++) {
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arr[i] = strs[i].charCodeAt();
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}
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return arr;
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}
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//打印二维码
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/**
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* @export
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* @param {object} options
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* {
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deviceId,
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serviceId,
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characteristicId,
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value,//ArrayBuffer:二维码的数据
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}
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*/
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export function printQR(options) {
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//打印二维码的十进制指令data：
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let data = [29, 107, 97, 7, 4, options.value.byteLength, 0];
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sendDataToDevice({
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...options,
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value: new Uint8Array(data).buffer,
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lasterSuccess: () => {
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//指令发送成功后，发送二维码的数据
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sendDataToDevice(options);
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},
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});
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}
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function grayPixle(pix) {
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return pix[0] * 0.299 + pix[1] * 0.587 + pix[2] * 0.114;
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}
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export function overwriteImageData(data) {
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let sendWidth = data.width,
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sendHeight = data.height;
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const threshold = data.threshold || 180;
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let sendImageData = new ArrayBuffer((sendWidth * sendHeight) / 8);
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sendImageData = new Uint8Array(sendImageData);
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let pix = data.imageData;
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const part = [];
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let index = 0;
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for (let i = 0; i < pix.length; i += 32) {
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//横向每8个像素点组成一个字节（8位二进制数）。
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for (let k = 0; k < 8; k++) {
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const grayPixle1 = grayPixle(pix.slice(i + k * 4, i + k * 4 + (4 - 1)));
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//阈值调整
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if (grayPixle1 > threshold) {
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//灰度值大于threshold位 白色 为第k位0不打印
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part[k] = 0;
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} else {
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part[k] = 1;
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}
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}
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let temp = 0;
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for (let a = 0; a < part.length; a++) {
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temp += part[a] * Math.pow(2, part.length - 1 - a);
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}
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//开始不明白以下算法什么意思，了解了字节才知道，一个字节是8位的二进制数，part这个数组存的0和1就是二进制的0和1，传输到打印的位图数据的一个字节是0-255之间的十进制数，以下是用权相加法转十进制数，理解了这个就用上面的for循环替代了
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// const temp =
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// part[0] * 128 +
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// part[1] * 64 +
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// part[2] * 32 +
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// part[3] * 16 +
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// part[4] * 8 +
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// part[5] * 4 +
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// part[6] * 2 +
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// part[7] * 1;
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sendImageData[index++] = temp;
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}
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return {
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array: Array.from(sendImageData),
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width: sendWidth / 8,
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height: sendHeight,
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};
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}
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/**
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* printImage
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* @param {object} opt
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* {
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deviceId,//蓝牙设备id
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serviceId,//服务id
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characteristicId,//可用特征值uuid
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lasterSuccess , //最后完成的回调
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}
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*/
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export function printImage(opt = {}, imageInfo = {}) {
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let arr = imageInfo.array,
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width = imageInfo.width;
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const writeArray = [];
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const xl = width % 256;
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const xh = width / 256;
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//分行发送图片数据,用的十进制指令
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const command = [29, 118, 48, 0, xl, xh, 1, 0]; //1D 76 30 00 w h
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const enter = [13, 10];
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for (let i = 0; i < arr.length / width; i++) {
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const subArr = arr.slice(i * width, i * width + width);
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const tempArr = command.concat(subArr);
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writeArray.push(new Uint8Array(tempArr));
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}
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writeArray.push(new Uint8Array(enter));
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//console.log(writeArray);
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const print = (options, writeArray) => {
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if (writeArray.length) {
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console.log("send");
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sendDataToDevice({
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...options,
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value: writeArray.shift().buffer,
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lasterSuccess: () => {
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if (writeArray.length) {
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print(options, writeArray);
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} else {
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options.lasterSuccess && options.lasterSuccess();
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}
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},
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});
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}
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};
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console.log("start print");
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print(opt, writeArray);
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}
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/* 16hex insert 0 */
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function Hex2Str(num) {
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if (num.toString(16).length < 2) return "0" + num.toString(16);
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else
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return num.toString(16);
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}
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/*****CPCL指令接口****/
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/**
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* 配置项如下
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*
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* width: 标签纸的宽度，单位像素點
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* height: 标签纸的高度，单位像素點
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* 8像素=1mm
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* printNum: 打印张数，默认为1
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* rotation：页面整体旋转 1-90度 2-180度 3-270度 其他-不旋转
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*/
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export function CreatCPCLPage(width, height, printNum, rotation = 0, offset = 0) {
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var strCmd = '! ' + offset + ' 200 200 ' + height + ' ' + printNum + '\n';
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strCmd += "PAGE-WIDTH " + width + '\n';
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if (rotation == 1)
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strCmd += "ZPROTATE90\n";
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else if (rotation == 2)
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strCmd += "ZPROTATE180\n";
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else if (rotation == 3)
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strCmd += "ZPROTATE270\n";
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else
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strCmd += "ZPROTATE0\n";
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return strCmd;
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}
|
|
|
|
/**
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|
* 打印文字
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|
* x: 文字方块左上角X座标，单位dot
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* y: 文字方块左上角Y座标，单位dot
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* fontName,fontSize: 字体，取值： 參考文檔
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* rotation: 旋转 1-90度 2-180度 3-270度 其他-不旋转
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* content: 文字内容
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*/
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export function addCPCLText(x, y, fontName, fontSize, rotation, content) {
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//console.log(fontName,fontSize,rotation, content);
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var strCmd = '';
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if (rotation == 1) {
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strCmd += 'T90 ';
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}
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if (rotation == 2) {
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strCmd += 'T180 ';
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}
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if (rotation == 3) {
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strCmd += 'T270 ';
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} else {
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strCmd += 'T ';
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}
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strCmd += fontName + ' ' + fontSize + ' ' + x + ' ' + y + ' ' + content + '\n';
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return strCmd;
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};
|
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|
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/**
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|
* 打印一维码
|
|
*
|
|
* x: 文字方块左上角X座标，单位dot
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* y: 文字方块左上角Y座标，单位dot
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|
* codeType: 条码类型，取值为128、UPCA、UPCA2、UPCA5、UPCE、UPCE2、UPC5、EAN13、EAN13+2、EAN13+5、
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* EAN8、EAN8+2、EAN8+5、39、39C、F39、F39C、93、CODABAR、CODABAR16、ITF、I2OF5
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* h: 条码高度，单位dot
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* rotation: 顺时针旋转角度，取值如下：
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* - 0 不旋转
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* - 1 顺时针旋转90度
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*
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* narrow: 窄条码比例因子(dot) 取值： 參考文檔
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* wide: 宽条码比例因子(dot) 取值： 參考文檔
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* content: 文字内容
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*
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*/
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export function addCPCLBarCode(x, y, codeType, h, rotation, narrow, wide, content) {
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var strCmd = '';
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if (rotation == 0)
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strCmd += 'B ';
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else
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strCmd += 'VB ';
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strCmd += codeType + ' ' + narrow + ' ' + wide + ' ' + h + ' ' + x + ' ' + y + ' ' + content + '\n'
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return strCmd;
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};
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/**
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* 打印二维码
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*
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* x: 文字方块左上角X座标，单位dot
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* y: 文字方块左上角Y座标，单位dot
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* level: 错误纠正能力等级，取值为L(7%)、M(15%)、Q(25%)、H(30%)
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* ver: 1-10 版本，根据内容调整以获取合适容量
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* scale: 1-10 放大倍数
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* content: 文字内容
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*
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*/
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export function addCPCLQRCode(x, y, level, ver, scale, content) {
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var strCmd = 'B QR ' + x + ' ' + y + ' M ' + ver + ' U ' + scale + '\n' + level + 'A,' + content + '\n';
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strCmd += 'ENDQR\n';
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return strCmd;
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};
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/**
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* 放大指令
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* scaleX: 横向放大倍数 1，2，3等整数
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* scaleY: 纵向放大倍数 1，2，3等整数
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*/
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export function addCPCLSETMAG(scaleX, scaleY) {
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var strCmd = 'SETMAG ' + scaleX + ' ' + scaleY + '\n';
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return strCmd;
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};
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/**
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* 对齐指令 0-左对齐 1-右对齐 2-居中
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*/
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export function addCPCLLocation(set) {
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var strCmd = '';
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if (set == 1) {
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strCmd += 'RIGHT\n';
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} else if (set == 2) {
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strCmd += 'CENTER\n';
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} else {
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strCmd += 'LEFT\n';
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}
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return strCmd;
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};
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/**
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* 反白线 x0,y0,x1,y1,width
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*/
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export function addCPCLInverseLine(x0, y0, x1, y1, width) {
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var strCmd = 'IL ' + x0 + ' ' + y0 + ' ' + x1 + ' ' + y1 + ' ' + width + '\n';
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return strCmd;
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};
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/**
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* 画线 x0,y0,x1,y1,width
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*/
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export function addCPCLLine(x0, y0, x1, y1, width) {
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var strCmd = 'L ' + x0 + ' ' + y0 + ' ' + x1 + ' ' + y1 + ' ' + width + '\n';
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return strCmd;
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};
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/**
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* 画框 x0,y0,x1,y1,width
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*/
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export function addCPCLBox(x0, y0, x1, y1, width) {
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var strCmd = 'BOX ' + x0 + ' ' + y0 + ' ' + x1 + ' ' + y1 + ' ' + width + '\n';
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return strCmd;
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};
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/**
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* 字体加粗
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|
*/
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export function addCPCLSETBOLD(bold) {
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var strCmd = 'SETBOLD ' + bold + '\n';
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return strCmd;
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};
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/**
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|
* 字体下划线
|
|
*/
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|
export function addCPCLUNDERLINE(c) {
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var strCmd = 'UNDERLINE ';
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if (c) strCmd += 'ON\n';
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else if (c) strCmd += 'OFF\n';
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return strCmd;
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};
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/**
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|
* 水印打印灰度等级 0-255
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|
*/
|
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export function addCPCLBACKGROUND(level) {
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|
var strCmd = 'BACKGROUND ';
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|
if (level > 255 || level < 0) level = 255;
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strCmd += level + '\n';
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return strCmd;
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|
};
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|
|
|
/**
|
|
* 打印水印文字
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|
* x: 文字方块左上角X座标，单位dot
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|
* y: 文字方块左上角Y座标，单位dot
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|
* fontName,fontSize: 字体，取值： 參考文檔
|
|
* rotation: 旋转 1-90度 2-180度 3-270度 其他-不旋转
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|
* content: 文字内容
|
|
*/
|
|
export function addCPCLBKVText(x, y, fontName, fontSize, rotation, content) {
|
|
//console.log(fontName,fontSize,rotation, content);
|
|
var strCmd = '';
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|
if (rotation == 1) {
|
|
strCmd += 'BKT90 ';
|
|
}
|
|
if (rotation == 2) {
|
|
strCmd += 'BKT180 ';
|
|
}
|
|
if (rotation == 3) {
|
|
strCmd += 'BKT270 ';
|
|
} else {
|
|
strCmd += 'BKT ';
|
|
}
|
|
strCmd += fontName + ' ' + fontSize + ' ' + x + ' ' + y + ' ' + content + '\n';
|
|
return strCmd;
|
|
};
|
|
|
|
|
|
/**
|
|
* 标签缝隙定位指令
|
|
*/
|
|
export function addCPCLGAP() {
|
|
var strCmd = 'GAP-SENSE\nFORM\n';
|
|
return strCmd;
|
|
};
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|
|
|
/**
|
|
* 标签右黑标检测指令
|
|
*/
|
|
export function addCPCLSENSE() {
|
|
var strCmd = 'BAR-SENSE\nFORM\n';
|
|
return strCmd;
|
|
};
|
|
|
|
/**
|
|
* 标签左黑标检测指令
|
|
*/
|
|
export function addCPCLSENSELEFT() {
|
|
var strCmd = 'BAR-SENSE LEFT\nFORM\n';
|
|
return strCmd;
|
|
};
|
|
|
|
/**
|
|
* 打印指令
|
|
*/
|
|
export function addCPCLPrint() {
|
|
var strCmd = 'PRINT\n';
|
|
return strCmd;
|
|
};
|
|
|
|
/**
|
|
* 图片打印指令
|
|
* x: 文字方块左上角X座标，单位dot
|
|
* y: 文字方块左上角Y座标，单位dot
|
|
* data{
|
|
threshold,//0/1提取的灰度级
|
|
width,//图像宽度
|
|
height,//图像高度
|
|
imageData , //图像数据
|
|
}
|
|
*/
|
|
export function addCPCLImageCmd(x, y, data) {
|
|
var strImgCmd = '';
|
|
const threshold = data.threshold || 180;
|
|
let myBitmapWidth = data.width,
|
|
myBitmapHeight = data.height;
|
|
let len = parseInt((myBitmapWidth + 7) / 8); //一行的数据长度
|
|
//console.log('len=',len);
|
|
//console.log('myBitmapWidth=',myBitmapWidth);
|
|
//console.log('myBitmapHeight=',myBitmapHeight);
|
|
let ndata = 0;
|
|
let i = 0;
|
|
let j = 0;
|
|
let sendImageData = new ArrayBuffer(len * myBitmapHeight);
|
|
sendImageData = new Uint8Array(sendImageData);
|
|
let pix = data.imageData;
|
|
console.log('pix=', pix);
|
|
|
|
for (i = 0; i < myBitmapHeight; i++) {
|
|
for (j = 0; j < len; j++) {
|
|
sendImageData[ndata + j] = 0;
|
|
}
|
|
for (j = 0; j < myBitmapWidth; j++) {
|
|
const grayPixle1 = grayPixle(pix.slice((i * myBitmapWidth + j) * 4, (i * myBitmapWidth + j) * 4 + 3));
|
|
if (grayPixle1 < threshold)
|
|
sendImageData[ndata + parseInt(j / 8)] |= (0x80 >> (j % 8));
|
|
|
|
}
|
|
ndata += len;
|
|
}
|
|
//console.log('sendImageData=',sendImageData);
|
|
//CPCL指令图片数据
|
|
strImgCmd += 'EG ' + len + ' ' + myBitmapHeight + ' ' + x + ' ' + y + ' ';
|
|
for (i = 0; i < sendImageData.length; i++) {
|
|
strImgCmd += Hex2Str(sendImageData[i]);
|
|
}
|
|
strImgCmd += '\n';
|
|
//console.log(strImgCmd);
|
|
return strImgCmd;
|
|
}
|
|
/**
|
|
* toast显示捕获的蓝牙异常
|
|
*/
|
|
export function catchToast(err) {
|
|
const errMsg = {
|
|
10000: '未初始化蓝牙模块',
|
|
10001: '蓝牙未打开',
|
|
10002: '没有找到指定设备',
|
|
10003: '连接失败',
|
|
10004: '没有找到指定服务',
|
|
10005: '没有找到指定特征值',
|
|
10006: '当前连接已断开',
|
|
10007: '当前特征值不支持此操作',
|
|
10008: '系统上报异常',
|
|
10009: '系统版本低于 4.3 不支持BLE'
|
|
};
|
|
let coode = err.errCode ? err.errCode.toString() : '';
|
|
let msg = errMsg[coode];
|
|
plus.nativeUI.toast(msg || coode, {
|
|
align: 'center',
|
|
verticalAlign: 'center'
|
|
});
|
|
}
|
|
|