uu
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@ -3,6 +3,9 @@
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<view class="lgn-page">
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<view class="pos-abt-all" style="z-index: 0;overflow: hidden;">
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<tpx-image width="750" mode="widthFix" :src="getCdnUrl('login/bg.png')"></tpx-image>
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<view class="yunduo">
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<tpx-image width="750" mode="widthFix" :src="getCdnUrl('login/bg-yun.png')"></tpx-image>
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</view>
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</view>
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<view class="pos-rlt" style="z-index: 1;">
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<view>
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@ -93,4 +96,10 @@
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background-size: 100% auto;
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background-repeat: no-repeat;
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}
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.yunduo{
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position: absolute;
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bottom: 0rpx;
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left: 0;
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right: 0;
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}
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</style>
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@ -1,232 +1,356 @@
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<template>
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<view>
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<button @click="searchBle">搜索蓝牙</button>
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<view style="margin-top: 30upx;" :key="index" v-for="(item,index) in devices">
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<button style="width: 400upx; color: #0081FF;" @click="onConn(item)">{{item.name}}</button>
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<button @click="discoveryPrinter">搜索打印机</button>
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<button @click="stopDiscoveryPrinter">停止搜索打印机</button>
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<view>选中的设备：{{deviceId}}</view>
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<view class="text-red">设备列表</view>
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<radio-group @change="radioChange">
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<label class="uni-list-cell uni-list-cell-pd" v-for="(item, index) in devices" :key="index"
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v-if="item.name && item.deviceId"
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>
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<view>
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<radio :value="item.deviceId" />{{item.name}}({{item.deviceId}})
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</view>
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<button style="margin-top: 100upx;" @click="senBleLabel()">标签打印</button>
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</label>
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</radio-group>
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<!-- <textarea auto-height placeholder-style="color:#F76260" placeholder="请输入票据信息" v-model="piaojuText" />
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<button style="margin-top: 100upx;" @click="senBleLabel2()">票据打印</button> -->
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<canvas :style="{width: `${canvasWidth}rpx`, height: `${canvasHeight}rpx`}" canvas-id="firstCanvas" id="firstCanvas" class="firstCanvas" />
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<view class="text-red">设备服务列表</view>
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<radio-group @change="radioChange2">
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<label class="uni-list-cell uni-list-cell-pd" v-for="(item, index) in serverList" :key="index">
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<view>
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<radio :value="item.uuid" />{{item.uuid}}
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</view>
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</label>
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</radio-group>
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<view class="text-red">特征值</view>
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<radio-group @change="radioChange3">
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<label class="uni-list-cell uni-list-cell-pd" v-for="(item, index) in characteristics" :key="index">
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<view>
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<radio :value="item.uuid" />{{item.uuid}}(write:{{item.properties.write}} notify:{{item.properties.notify}} indicate:{{item.properties.indicate}})
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</view>
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</label>
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</radio-group>
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<button @click="writeBLECharacteristicValue">打印</button>
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<canvas canvas-id="shareCanvas" :style="{width:canvas_width+'px', height: canvas_height+'px'}"></canvas>
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</view>
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</template>
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<script>
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import * as tsc from '@/common/libs/tsc.js'
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import * as esc from '@/common/libs/esc.js'
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import bluetoothTool from '@/common/libs/BluetoothTool.js'
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import PrinterJobs from './print/printerjobs.js'
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import * as printerUtil from './print/printerutil.js'
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import * as util from './print/util.js'
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export default {
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data() {
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export default {
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name: 'xun_bluetoothPrint',
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data () {
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return {
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canvasId: 'shareCanvas',
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canvas_width: 240,
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canvas_height: 240,
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devices: [],
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currDev: null,
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connId: '',
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piaojuText:'',
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tableDomId: '',
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tableImgPath: '',
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canvasWidth: 600,
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canvasHeight: 600,
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msg: ''
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deviceId: '',
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serverList: [],
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serviceId: '',
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characteristics: [],
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characteristicId: ''
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}
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},
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watch:{
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msg(){
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uni.showToast({
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title: this.msg
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})
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}
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},
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onReady() {
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this.renderCanvas()
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},
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mounted() {
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//#ifdef APP-PLUS
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// 蓝牙
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bluetoothTool.init({
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listenBTStatusCallback: (state)=> {
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if(state == 'STATE_ON') {
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let lastBleAddress = uni.getStorageSync('lastBleAddress')
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if(lastBleAddress) {
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uni.showLoading({
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title: '正在连接...'
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})
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console.log(lastBleAddress)
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bluetoothTool.connDevice(lastBleAddress,(result)=>{
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uni.hideLoading()
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uni.showToast({
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title: result?'连接成功！':'连接失败...'
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});
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})
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}
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}
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},
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discoveryDeviceCallback: this.onDevice,
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discoveryFinishedCallback: function() {
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that.msg = "搜索完成";
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},
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readDataCallback: function(dataByteArr) {
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// 读取蓝牙返回的数据
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/* if(that.receiveDataArr.length >= 200) {
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that.receiveDataArr = [];
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}
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that.receiveDataArr.push.apply(that.receiveDataArr, dataByteArr); */
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},
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connExceptionCallback: function(e) {
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console.log(e);
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that.msg = "设备连接失败";
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}
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});
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//#endif
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mounted () {
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// 初始化蓝牙模块
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this.openBluetoothAdapter()
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},
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methods: {
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destroyed: function() {
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console.log("destroyed----------")
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if (this.connId != '') {
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uni.closeBLEConnection({
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deviceId: this.connId,
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success(res) {
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console.log(res)
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}
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})
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}
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},
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searchBle() {
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var that = this
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console.log("initBule")
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// 使用openBluetoothAdapter 接口，免去主动申请权限的麻烦
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openBluetoothAdapter () {
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var _this = this
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uni.openBluetoothAdapter({
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success(res) {
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this.devices = []
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console.log("打开 蓝牙模块，开始搜索模式...")
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console.log("openBluetoothAdapter res==", res)
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// that.getBuleState()
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bluetoothTool.discoveryNewDevice();
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}
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complete (e) {
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console.log(e);
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if (!e.errCode) {
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console.log('初始化完成')
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} else if (e.errCode == 10001) {
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uni.showToast({
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icon: 'none',
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title: '请打开手机蓝牙'
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})
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},
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getBuleState(){
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uni.getBluetoothAdapterState({
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success: function(res) {
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console.log("====getBluetoothAdapterState===", res)
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if (res.available) {
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if (res.discovering) {
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that.stopFindBule()
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}
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//搜索蓝牙
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//开始搜寻附近的蓝牙外围设备
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console.log("开始搜寻附近的蓝牙外围设备")
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uni.startBluetoothDevicesDiscovery({
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success(res) {
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console.log(res)
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}
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})
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} else {
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console.log('本机蓝牙不可用')
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}
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},
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})
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},
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onDevice(newDevice){
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console.log("监听寻找到新设备的事件---------------")
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console.log(newDevice)
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if(newDevice.name && newDevice.name != 'null') {
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this.devices.push({
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name: newDevice.name,
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address: newDevice.address
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uni.showToast({
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icon: 'none',
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title: e.errMsg
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})
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}
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}
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})
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},
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stopFindBule() {
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console.log("停止搜寻附近的蓝牙外围设备---------------")
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uni.stopBluetoothDevicesDiscovery({
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success(res) {
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// 开始搜寻附近的蓝牙外围设备
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discoveryPrinter () {
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var _this = this
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_this.devices = []
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uni.startBluetoothDevicesDiscovery({
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complete (e) {
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console.log(e)
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if (e.errMsg == "startBluetoothDevicesDiscovery:ok") {
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// ArrayBuffer转16进度字符串示例
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uni.onBluetoothDeviceFound(devices => {
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console.log(devices)
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_this.devices.push(devices.devices[0])
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})
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}
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}
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})
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},
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// 停止搜寻附近的蓝牙外围设备
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async stopDiscoveryPrinter () {
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uni.stopBluetoothDevicesDiscovery()
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},
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radioChange (e) {
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console.log(e)
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this.deviceId = e.target.value
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this.serviceId = ''
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this.serverList = []
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this.characteristics = []
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this.characteristicId = ''
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//连接蓝牙
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this.connect()
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},
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radioChange2 (e) {
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console.log(e)
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this.serviceId = e.target.value
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this.characteristics = []
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this.characteristicId = ''
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// 获取蓝牙特征值
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setTimeout(() =>{
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this.getBLEDeviceCharacteristics()
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}, 500);
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},
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radioChange3 (e) {
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console.log(e)
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this.characteristicId = e.target.value
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},
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connect () {
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var _this = this
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uni.createBLEConnection({
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deviceId: _this.deviceId,
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complete (e) {
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console.log("蓝牙连接回调=====", e)
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if (!e.errCode) {
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uni.showToast({
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icon: 'none',
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title: `蓝牙连接成功`
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})
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//获取蓝牙设备所有服务(service)。
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setTimeout(()=> {
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_this.getBLEDeviceServices()
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}, 2000)
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} else {
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uni.showToast({
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icon: 'none',
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title: `连接设备失败:${e.errMsg}`
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})
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}
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}
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})
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},
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getBLEDeviceServices(){
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var _this = this
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uni.getBLEDeviceServices({
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// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接
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deviceId: _this.deviceId,
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success:(res)=>{
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console.log('device services:', res)
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_this.serverList = res.services
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// _this.serviceId = res.services[0].uuid;
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console.log('serverId:', _this.serviceId)
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},
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fail:(e) =>{
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uni.showToast({
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icon: 'none',
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title: `设备服务获取失败:${e.errMsg}`
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})
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console.log("getBLEDeviceServices - fail==============", e)
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}
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})
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},
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getBLEDeviceCharacteristics () {
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var _this = this
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uni.getBLEDeviceCharacteristics({
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// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接
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deviceId: _this.deviceId,
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// 这里的 serviceId 需要在 getBLEDeviceServices 接口中获取
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serviceId:_this.serviceId,
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success:(res)=>{
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console.log('getBLEDeviceCharacteristics', res)
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_this.characteristics = res.characteristics
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// _this.characteristicId = res.characteristics[0].uuid
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},
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fail:(res)=>{
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console.log(res)
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}
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})
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},
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onConn(item) {
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console.log("连接蓝牙---------------" + item.address)
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bluetoothTool.connDevice(item.address,(result)=>{
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if(result) {
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uni.setStorageSync('lastBleAddress', item.address)
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// 发送二进制数据
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async writeBLECharacteristicValue(){
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if (!this.deviceId) {
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uni.showToast({
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icon: 'none',
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title: '请选择设备'
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})
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return
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}
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console.log('连接结果：',result)
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});
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if (!this.serviceId) {
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uni.showToast({
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icon: 'none',
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title: '请选择设备服务'
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})
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return
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}
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if (!this.characteristicId) {
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uni.showToast({
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icon: 'none',
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title: '请选择特征值'
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})
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return
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}
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let pic_res = await this.renderPic();
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uni.showToast({
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icon: 'none',
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title: '图片获取成功'
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})
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let printerJobs = new PrinterJobs()
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var arr = [{
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title: '阿根廷车厘子',
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number: 20,
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price: '￥188.00'
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}, {
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title: '新鲜山竹',
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number: 38,
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price: '￥199.00'
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}]
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var arr2 = [{
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title: '平台消暑费',
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price: '9.99'
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},{
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title: '打包费',
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price: '2.00',
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}]
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printerJobs
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.print(`下单时间：2021-07-25 15:30:23`)
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.print(printerUtil.fillLine())
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.print('备注')
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.setSize(2, 2)
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.setBold(true)
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.print(`叫那位非常漂亮的小姐姐送来，其他人送来拒收`)
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.print(printerUtil.fillLine())
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.printQrcode(pic_res)
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// .setSize(1, 1)
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// .setBold(false)
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// .print(printerUtil.fillLine('*'))
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// .setAlign('lt')
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// .printArray(arr)
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// .print(printerUtil.fillAround('其它'))
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// .print(printerUtil.inline('平台随机立减', `-2.10`))
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// .print(printerUtil.inline('平台服务费', `-10.99`))
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// .printArray(arr2)
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// .print(printerUtil.fillLine())
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// .setAlign('rt')
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// .setSize(1, 2)
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// .setBold(true)
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// .print(`用户支付：￥99.99`)
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.print(printerUtil.fillLine())
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let buffer = printerJobs.buffer();
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console.log('buffer>>>',buffer)
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this.printbuffs(buffer)
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},
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senBleLabel() {
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//标签模式
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printbuffs(buffer) {
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// 1.并行调用多次会存在写失败的可能性
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// 2.建议每次写入不超过20字节
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// 分包处理，延时调用
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const maxChunk = 20;
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const delay = 20;
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for (let i = 0, j = 0, length = buffer.byteLength; i < length; i += maxChunk, j++) {
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let subPackage = buffer.slice(i, i + maxChunk <= length ? (i + maxChunk) : length);
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setTimeout(this.printbuff, j * delay, subPackage);
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}
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},
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getImageInfo(params = {}) {
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return new Promise((resolve)=> {
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uni.canvasGetImageData({
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canvasId: 'firstCanvas',
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x: 0,
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y: 0,
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width: this.canvasWidth,
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height: this.canvasHeight,
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success: (res)=> {
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uni.hideLoading()
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var command = tsc.jpPrinter.createNew()
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command.init()
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command.setSize(80, 60) // 纸张大小
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command.setGap(2)
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command.setCls()
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command.setText(50, 10, "TSS24.BF2", 1, 1, "打印测试")
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command.setQR(50, 50, "L", 5, "A", "https://www.baidu.com")
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command.setBitmap(200, 0, 0, res)
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command.setBox(100, 100, 700, 500, 1)
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command.setPagePrint()
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let data = command.getData()
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bluetoothTool.sendByteData(data)
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console.log('发送完毕')
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},
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fail: function(res) {
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console.log(res)
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...params,
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success(res) {
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console.log("img====",res);
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let data = util.zip_image(res)
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console.log("zip====", data);
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resolve(data);
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}
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||||
})
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||||
})
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|
||||
},
|
||||
senBleLabel2(){
|
||||
//票据模式
|
||||
var command = esc.jpPrinter.createNew()
|
||||
command.init()
|
||||
command.setText(this.piaojuText);
|
||||
command.setPrintAndFeedRow(1)
|
||||
bluetoothTool.sendData(command.getRawData())
|
||||
},
|
||||
renderCanvas() {
|
||||
renderPic() {
|
||||
let filePath = 'http://oss-emis.tanex56.com/sapp/sdg/hdbg.png'
|
||||
let that = this
|
||||
const firstCanvas = uni.createCanvasContext('firstCanvas', this);
|
||||
return new Promise((resolve, reject)=> {
|
||||
const cxt = uni.createCanvasContext(that.canvasId, that);
|
||||
let scla = 1
|
||||
uni.getImageInfo({
|
||||
src: filePath,
|
||||
success(res) {
|
||||
console.log(res.width + "--" + res.height)
|
||||
that.canvasWidth = res.width * scla
|
||||
that.canvasHeight = res.height * scla
|
||||
console.log(res, that.canvasWidth, that.canvasHeight)
|
||||
firstCanvas.drawImage(filePath, 0, 0, that.canvasWidth, that.canvasHeight);
|
||||
firstCanvas.draw();
|
||||
that.$nextTick(() => { //获取画布像素数据
|
||||
|
||||
// that.canvasWidth = res.width * scla
|
||||
// that.canvasHeight = res.height * scla
|
||||
// console.log(res, that.canvasWidth, that.canvasHeight)
|
||||
cxt.drawImage(filePath, 0, 0, that.canvas_width, that.canvas_height);
|
||||
cxt.draw();
|
||||
that.$nextTick(async () => { //获取画布像素数据
|
||||
let data = await that.getImageInfo({ canvasId: that.canvasId, width: that.canvas_width, height: that.canvas_height, })
|
||||
resolve(data)
|
||||
})
|
||||
},
|
||||
fail(res) {
|
||||
console.log(res)
|
||||
fail(e) {
|
||||
reject(e)
|
||||
console.log(e)
|
||||
}
|
||||
})
|
||||
})
|
||||
},
|
||||
printbuff(buffer) {
|
||||
var _this = this
|
||||
uni.writeBLECharacteristicValue({
|
||||
// 这里的 deviceId 需要在 getBluetoothDevices 或 onBluetoothDeviceFound 接口中获取
|
||||
deviceId: _this.deviceId,
|
||||
// 这里的 serviceId 需要在 getBLEDeviceServices 接口中获取
|
||||
serviceId: _this.serviceId,
|
||||
// 这里的 characteristicId 需要在 getBLEDeviceCharacteristics 接口中获取
|
||||
characteristicId: _this.characteristicId,
|
||||
// 这里的value是ArrayBuffer类型
|
||||
value: buffer,
|
||||
success:(res)=> {
|
||||
console.log('writeBLECharacteristicValue success', res.errMsg)
|
||||
},
|
||||
fail:(res)=> {
|
||||
console.log('writeBLECharacteristicValue fail', res.errMsg)
|
||||
},
|
||||
complete (e) {
|
||||
console.log('writeBLECharacteristicValue complete', e)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
</script>
|
||||
|
||||
<style>
|
||||
<style scoped>
|
||||
* { font-size: 24rpx;}
|
||||
button { font-size: 28rpx;}
|
||||
.text-red { color: red; font-size: 28rpx;}
|
||||
|
||||
/*二维码隐藏到窗口外*/
|
||||
canvas {
|
||||
position: absolute;
|
||||
top: -999rpx
|
||||
}
|
||||
</style>
|
||||
@ -158,7 +158,8 @@
|
||||
// val && ()
|
||||
}),
|
||||
handleSubmit() {
|
||||
this.getRealGetWaybillPrintData()
|
||||
// this.getRealGetWaybillPrintData()
|
||||
this.goto("print/bluetoothPrinter")
|
||||
// this.goto("print/bluetooth-mini-printer")
|
||||
},
|
||||
handleSelAll() {
|
||||
|
||||
265
pages/print/print/bluetooth.js
Normal file
265
pages/print/print/bluetooth.js
Normal file
@ -0,0 +1,265 @@
|
||||
class Bluetooth {
|
||||
|
||||
constructor() {
|
||||
this.isOpenBle = false;
|
||||
this.deviceId = "";
|
||||
this.serviceId = "";
|
||||
this.writeId = "";
|
||||
this.notifyId = "";
|
||||
this.openBluetoothAdapter();
|
||||
}
|
||||
|
||||
showToast(title) {
|
||||
uni.showToast({
|
||||
title: title,
|
||||
icon: 'none',
|
||||
'duration': 2000
|
||||
});
|
||||
}
|
||||
|
||||
openBluetoothAdapter() {
|
||||
return new Promise((resolve, reject) => {
|
||||
uni.openBluetoothAdapter({
|
||||
success: res => {
|
||||
this.isOpenBle = true;
|
||||
this.showToast("初始化蓝牙模块成功");
|
||||
resolve(res);
|
||||
},
|
||||
fail: err => {
|
||||
this.showToast(`初始化蓝牙模块失败` + JSON.stringify(err));
|
||||
reject(err);
|
||||
},
|
||||
});
|
||||
});
|
||||
|
||||
}
|
||||
|
||||
startBluetoothDevicesDiscovery() {
|
||||
if (!this.isOpenBle) {
|
||||
this.showToast(`初始化蓝牙模块失败`)
|
||||
return;
|
||||
}
|
||||
|
||||
let self = this;
|
||||
uni.showLoading({
|
||||
title: '蓝牙搜索中'
|
||||
})
|
||||
return new Promise((resolve, reject) => {
|
||||
setTimeout(() => {
|
||||
uni.startBluetoothDevicesDiscovery({
|
||||
success: res => {
|
||||
resolve(res)
|
||||
},
|
||||
fail: res => {
|
||||
self.showToast(`搜索设备失败` + JSON.stringify(err));
|
||||
reject(err);
|
||||
}
|
||||
})
|
||||
}, 300);
|
||||
});
|
||||
}
|
||||
|
||||
stopBluetoothDevicesDiscovery() {
|
||||
let self = this;
|
||||
return new Promise((resolve, reject) => {
|
||||
uni.stopBluetoothDevicesDiscovery({
|
||||
success: e => {
|
||||
uni.hideLoading();
|
||||
},
|
||||
fail: e => {
|
||||
uni.hideLoading();
|
||||
self.showToast(`停止搜索蓝牙设备失败` + JSON.stringify(err));
|
||||
}
|
||||
})
|
||||
});
|
||||
}
|
||||
|
||||
createBLEConnection() {
|
||||
//设备deviceId
|
||||
let deviceId = this.deviceId;
|
||||
let self = this;
|
||||
|
||||
uni.showLoading({
|
||||
mask: true,
|
||||
title: '设别连接中,请稍候...'
|
||||
})
|
||||
console.log(this.deviceId);
|
||||
return new Promise((resolve, reject) => {
|
||||
uni.createBLEConnection({
|
||||
deviceId,
|
||||
success: (res) => {
|
||||
console.log("res:createBLEConnection " + JSON.stringify(res));
|
||||
resolve(res)
|
||||
},
|
||||
fail: err => {
|
||||
uni.hideLoading();
|
||||
self.showToast(`停止搜索蓝牙设备失败` + JSON.stringify(err));
|
||||
reject(err);
|
||||
}
|
||||
})
|
||||
});
|
||||
}
|
||||
|
||||
//获取蓝牙设备所有服务(service)
|
||||
getBLEDeviceServices() {
|
||||
let _serviceList = [];
|
||||
let deviceId = this.deviceId;
|
||||
let self = this;
|
||||
|
||||
return new Promise((resolve, reject) => {
|
||||
setTimeout(() => {
|
||||
uni.getBLEDeviceServices({
|
||||
deviceId,
|
||||
success: res => {
|
||||
for (let service of res.services) {
|
||||
if (service.isPrimary) {
|
||||
_serviceList.push(service);
|
||||
}
|
||||
}
|
||||
uni.hideLoading();
|
||||
console.log("_serviceList: " + JSON.stringify(_serviceList));
|
||||
resolve(_serviceList)
|
||||
},
|
||||
fail: err => {
|
||||
uni.hideLoading();
|
||||
self.showToast(`获取设备Services` + JSON.stringify(err));
|
||||
reject(err);
|
||||
},
|
||||
})
|
||||
}, 500);
|
||||
});
|
||||
}
|
||||
|
||||
//获取蓝牙设备某个服务中所有特征值(characteristic)
|
||||
getBLEDeviceCharacteristics() {
|
||||
let deviceId = this.deviceId;
|
||||
let serviceId = this.serviceId;
|
||||
|
||||
let self = this;
|
||||
return new Promise((resolve, reject) => {
|
||||
uni.getBLEDeviceCharacteristics({
|
||||
deviceId,
|
||||
serviceId,
|
||||
success: res => {
|
||||
for (let _obj of res.characteristics) {
|
||||
//获取notify
|
||||
if (_obj.properties.notify) {
|
||||
self.notifyId = _obj.uuid;
|
||||
uni.setStorageSync('notifyId', self.notifyId);
|
||||
}
|
||||
//获取writeId
|
||||
if (_obj.properties.write) {
|
||||
self.writeId = _obj.uuid;
|
||||
uni.setStorageSync('writeId', self.writeId);
|
||||
}
|
||||
}
|
||||
|
||||
//console.log("res:getBLEDeviceCharacteristics " + JSON.stringify(res));
|
||||
let result = {
|
||||
'notifyId': self.notifyId,
|
||||
'writeId': self.writeId
|
||||
};
|
||||
self.showToast(`获取服务中所有特征值OK,${JSON.stringify(result)}`);
|
||||
resolve(result)
|
||||
},
|
||||
fail: err => {
|
||||
self.showToast(`getBLEDeviceCharacteristics` + JSON.stringify(err));
|
||||
reject(err);
|
||||
}
|
||||
})
|
||||
});
|
||||
}
|
||||
|
||||
//断开联链接
|
||||
closeBLEConnection() {
|
||||
let deviceId = this.deviceId;
|
||||
uni.closeBLEConnection({
|
||||
deviceId,
|
||||
success(res) {
|
||||
console.log(res)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
notifyBLECharacteristicValue() {
|
||||
let deviceId = this.deviceId;
|
||||
let serviceId = this.serviceId;
|
||||
let characteristicId = this.notifyId;
|
||||
|
||||
uni.notifyBLECharacteristicValueChange({
|
||||
state: true, // 启用 notify 功能
|
||||
deviceId,
|
||||
serviceId,
|
||||
characteristicId,
|
||||
success(res) {
|
||||
uni.onBLECharacteristicValueChange(function(res) {
|
||||
|
||||
});
|
||||
},
|
||||
fail(res) {
|
||||
console.log('notifyBLECharacteristicValueChange failed:' + res.errMsg);
|
||||
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
writeBLECharacteristicValue(buffer) {
|
||||
let deviceId = this.deviceId;
|
||||
let serviceId = this.serviceId;
|
||||
let characteristicId = this.writeId;
|
||||
|
||||
console.log("this: " + JSON.stringify(this));
|
||||
|
||||
return new Promise((resolve, reject) => {
|
||||
uni.writeBLECharacteristicValue({
|
||||
deviceId,
|
||||
serviceId,
|
||||
characteristicId,
|
||||
value: buffer,
|
||||
success(res) {
|
||||
console.log('message发送成功', JSON.stringify(res));
|
||||
resolve(res);
|
||||
},
|
||||
fail(err) {
|
||||
console.log('message发送失败', JSON.stringify(err));
|
||||
reject(err);
|
||||
}
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
closeBluetoothAdapter() {
|
||||
uni.closeBluetoothAdapter({
|
||||
success: res => {
|
||||
console.log(res)
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
//若APP在之前已有搜索过某个蓝牙设备，并成功建立连接，可直接传入之前搜索获取的 deviceId 直接尝试连接该设备，无需进行搜索操作。
|
||||
reconnect() {
|
||||
(async () => {
|
||||
try {
|
||||
this.deviceId = this.deviceId || uni.getStorageSync("deviceId");
|
||||
this.serviceId = this.serviceId || uni.getStorageSync("serviceId");
|
||||
|
||||
let result1 = await this.createBLEConnection();
|
||||
console.log("createBLEConnection: " + JSON.stringify(result1));
|
||||
|
||||
let result2 = await this.getBLEDeviceServices();
|
||||
console.log("getBLEDeviceServices: " + JSON.stringify(result2));
|
||||
|
||||
let result3 = await this.getBLEDeviceCharacteristics();
|
||||
console.log("getBLEDeviceCharacteristics: " + JSON.stringify(result3));
|
||||
|
||||
// this.writeId = uni.getStorageSync("writeId");
|
||||
// this.notifyId = uni.getStorageSync("notifyId");
|
||||
} catch (err) {
|
||||
console.log("err: " + JSON.stringify(err));
|
||||
}
|
||||
|
||||
})();
|
||||
}
|
||||
}
|
||||
|
||||
export default Bluetooth;
|
||||
193
pages/print/print/commands.js
Normal file
193
pages/print/print/commands.js
Normal file
@ -0,0 +1,193 @@
|
||||
/**
|
||||
* 修改自https://github.com/song940/node-escpos/blob/master/commands.js
|
||||
* ESC/POS _ (Constants)
|
||||
*/
|
||||
var _ = {
|
||||
LF: [0x0a],
|
||||
FS: [0x1c],
|
||||
FF: [0x0c],
|
||||
GS: [0x1d],
|
||||
DLE: [0x10],
|
||||
EOT: [0x04],
|
||||
NUL: [0x00],
|
||||
ESC: [0x1b],
|
||||
EOL: '\n',
|
||||
};
|
||||
|
||||
/**
|
||||
* [FEED_CONTROL_SEQUENCES Feed control sequences]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.FEED_CONTROL_SEQUENCES = {
|
||||
CTL_LF: [0x0a], // Print and line feed
|
||||
CTL_GLF: [0x4a, 0x00], // Print and feed paper (without spaces between lines)
|
||||
CTL_FF: [0x0c], // Form feed
|
||||
CTL_CR: [0x0d], // Carriage return
|
||||
CTL_HT: [0x09], // Horizontal tab
|
||||
CTL_VT: [0x0b], // Vertical tab
|
||||
};
|
||||
|
||||
_.CHARACTER_SPACING = {
|
||||
CS_DEFAULT: [0x1b, 0x20, 0x00],
|
||||
CS_SET: [0x1b, 0x20]
|
||||
};
|
||||
|
||||
_.LINE_SPACING = {
|
||||
LS_DEFAULT: [0x1b, 0x32],
|
||||
LS_SET: [0x1b, 0x33]
|
||||
};
|
||||
|
||||
/**
|
||||
* [HARDWARE Printer hardware]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.HARDWARE = {
|
||||
HW_INIT: [0x1b, 0x40], // Clear data in buffer and reset modes
|
||||
HW_SELECT: [0x1b, 0x3d, 0x01], // Printer select
|
||||
HW_RESET: [0x1b, 0x3f, 0x0a, 0x00], // Reset printer hardware
|
||||
};
|
||||
|
||||
/**
|
||||
* [CASH_DRAWER Cash Drawer]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.CASH_DRAWER = {
|
||||
CD_KICK_2: [0x1b, 0x70, 0x00], // Sends a pulse to pin 2 []
|
||||
CD_KICK_5: [0x1b, 0x70, 0x01], // Sends a pulse to pin 5 []
|
||||
};
|
||||
|
||||
/**
|
||||
* [MARGINS Margins sizes]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.MARGINS = {
|
||||
BOTTOM: [0x1b, 0x4f], // Fix bottom size
|
||||
LEFT: [0x1b, 0x6c], // Fix left size
|
||||
RIGHT: [0x1b, 0x51], // Fix right size
|
||||
};
|
||||
|
||||
/**
|
||||
* [PAPER Paper]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.PAPER = {
|
||||
PAPER_FULL_CUT: [0x1d, 0x56, 0x00], // Full cut paper
|
||||
PAPER_PART_CUT: [0x1d, 0x56, 0x01], // Partial cut paper
|
||||
PAPER_CUT_A: [0x1d, 0x56, 0x41], // Partial cut paper
|
||||
PAPER_CUT_B: [0x1d, 0x56, 0x42], // Partial cut paper
|
||||
};
|
||||
|
||||
/**
|
||||
* [TEXT_FORMAT Text format]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.TEXT_FORMAT = {
|
||||
TXT_NORMAL: [0x1b, 0x21, 0x00], // Normal text
|
||||
TXT_2HEIGHT: [0x1b, 0x21, 0x10], // Double height text
|
||||
TXT_2WIDTH: [0x1b, 0x21, 0x20], // Double width text
|
||||
TXT_4SQUARE: [0x1b, 0x21, 0x30], // Double width & height text
|
||||
|
||||
TXT_UNDERL_OFF: [0x1b, 0x2d, 0x00], // Underline font OFF
|
||||
TXT_UNDERL_ON: [0x1b, 0x2d, 0x01], // Underline font 1-dot ON
|
||||
TXT_UNDERL2_ON: [0x1b, 0x2d, 0x02], // Underline font 2-dot ON
|
||||
TXT_BOLD_OFF: [0x1b, 0x45, 0x00], // Bold font OFF
|
||||
TXT_BOLD_ON: [0x1b, 0x45, 0x01], // Bold font ON
|
||||
TXT_ITALIC_OFF: [0x1b, 0x35], // Italic font ON
|
||||
TXT_ITALIC_ON: [0x1b, 0x34], // Italic font ON
|
||||
|
||||
TXT_FONT_A: [0x1b, 0x4d, 0x00], // Font type A
|
||||
TXT_FONT_B: [0x1b, 0x4d, 0x01], // Font type B
|
||||
TXT_FONT_C: [0x1b, 0x4d, 0x02], // Font type C
|
||||
|
||||
TXT_ALIGN_LT: [0x1b, 0x61, 0x00], // Left justification
|
||||
TXT_ALIGN_CT: [0x1b, 0x61, 0x01], // Centering
|
||||
TXT_ALIGN_RT: [0x1b, 0x61, 0x02], // Right justification
|
||||
};
|
||||
|
||||
/**
|
||||
* [BARCODE_FORMAT Barcode format]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.BARCODE_FORMAT = {
|
||||
BARCODE_TXT_OFF: [0x1d, 0x48, 0x00], // HRI barcode chars OFF
|
||||
BARCODE_TXT_ABV: [0x1d, 0x48, 0x01], // HRI barcode chars above
|
||||
BARCODE_TXT_BLW: [0x1d, 0x48, 0x02], // HRI barcode chars below
|
||||
BARCODE_TXT_BTH: [0x1d, 0x48, 0x03], // HRI barcode chars both above and below
|
||||
|
||||
BARCODE_FONT_A: [0x1d, 0x66, 0x00], // Font type A for HRI barcode chars
|
||||
BARCODE_FONT_B: [0x1d, 0x66, 0x01], // Font type B for HRI barcode chars
|
||||
|
||||
BARCODE_HEIGHT: function (height) { // Barcode Height [1-255]
|
||||
return [0x1d, 0x68, height];
|
||||
},
|
||||
BARCODE_WIDTH: function (width) { // Barcode Width [2-6]
|
||||
return [0x1d, 0x77, width];
|
||||
},
|
||||
BARCODE_HEIGHT_DEFAULT: [0x1d, 0x68, 0x64], // Barcode height default:100
|
||||
BARCODE_WIDTH_DEFAULT: [0x1d, 0x77, 0x01], // Barcode width default:1
|
||||
|
||||
BARCODE_UPC_A: [0x1d, 0x6b, 0x00], // Barcode type UPC-A
|
||||
BARCODE_UPC_E: [0x1d, 0x6b, 0x01], // Barcode type UPC-E
|
||||
BARCODE_EAN13: [0x1d, 0x6b, 0x02], // Barcode type EAN13
|
||||
BARCODE_EAN8: [0x1d, 0x6b, 0x03], // Barcode type EAN8
|
||||
BARCODE_CODE39: [0x1d, 0x6b, 0x04], // Barcode type CODE39
|
||||
BARCODE_ITF: [0x1d, 0x6b, 0x05], // Barcode type ITF
|
||||
BARCODE_NW7: [0x1d, 0x6b, 0x06], // Barcode type NW7
|
||||
BARCODE_CODE93: [0x1d, 0x6b, 0x48], // Barcode type CODE93
|
||||
BARCODE_CODE128: [0x1d, 0x6b, 0x49], // Barcode type CODE128
|
||||
};
|
||||
|
||||
/**
|
||||
* [IMAGE_FORMAT Image format]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.IMAGE_FORMAT = {
|
||||
S_RASTER_N: [0x1d, 0x76, 0x30, 0x00], // Set raster image normal size
|
||||
S_RASTER_2W: [0x1d, 0x76, 0x30, 0x01], // Set raster image double width
|
||||
S_RASTER_2H: [0x1d, 0x76, 0x30, 0x02], // Set raster image double height
|
||||
S_RASTER_Q: [0x1d, 0x76, 0x30, 0x03], // Set raster image quadruple
|
||||
};
|
||||
|
||||
/**
|
||||
* [BITMAP_FORMAT description]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.BITMAP_FORMAT = {
|
||||
BITMAP_S8: [0x1b, 0x2a, 0x00],
|
||||
BITMAP_D8: [0x1b, 0x2a, 0x01],
|
||||
BITMAP_S24: [0x1b, 0x2a, 0x20],
|
||||
BITMAP_D24: [0x1b, 0x2a, 0x21]
|
||||
};
|
||||
|
||||
/**
|
||||
* [GSV0_FORMAT description]
|
||||
* @type {Object}
|
||||
*/
|
||||
_.GSV0_FORMAT = {
|
||||
GSV0_NORMAL: [0x1d, 0x76, 0x30, 0x00],
|
||||
GSV0_DW: [0x1d, 0x76, 0x30, 0x01],
|
||||
GSV0_DH: [0x1d, 0x76, 0x30, 0x02],
|
||||
GSV0_DWDH: [0x1d, 0x76, 0x30, 0x03]
|
||||
};
|
||||
|
||||
/**
|
||||
* [BEEP description]
|
||||
* @type {string}
|
||||
*/
|
||||
_.BEEP = [0x1b, 0x42]; // Printer Buzzer pre hex
|
||||
|
||||
/**
|
||||
* [COLOR description]
|
||||
* @type {Object}
|
||||
*/
|
||||
|
||||
_.COLOR = {
|
||||
0: [0x1b, 0x72, 0x00], // black
|
||||
1: [0x1b, 0x72, 0x01] // red
|
||||
};
|
||||
|
||||
/**
|
||||
* [exports description]
|
||||
* @type {[type]}
|
||||
*/
|
||||
export default _
|
||||
191
pages/print/print/gbk.js
Normal file
191
pages/print/print/gbk.js
Normal file
File diff suppressed because one or more lines are too long
221
pages/print/print/printerjobs.js
Normal file
221
pages/print/print/printerjobs.js
Normal file
@ -0,0 +1,221 @@
|
||||
import commands from'./commands'
|
||||
import gbk from'./gbk'
|
||||
import * as printerUtil from'./printerutil'
|
||||
|
||||
const printerJobs = function() {
|
||||
this._queue = Array.from(commands.HARDWARE.HW_INIT);
|
||||
this._enqueue = function(cmd) {
|
||||
this._queue.push.apply(this._queue, cmd);
|
||||
}
|
||||
};
|
||||
|
||||
/**
|
||||
* 增加打印内容
|
||||
* @param {string} content 文字内容
|
||||
*/
|
||||
printerJobs.prototype.text = function(content) {
|
||||
if (content) {
|
||||
let uint8Array = gbk.encode(content);
|
||||
let encoded = Array.from(uint8Array);
|
||||
this._enqueue(encoded);
|
||||
}
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 打印文字
|
||||
* @param {string} content 文字内容
|
||||
*/
|
||||
printerJobs.prototype.print = function(content) {
|
||||
this.text(content);
|
||||
this._enqueue(commands.LF);
|
||||
return this;
|
||||
};
|
||||
|
||||
printerJobs.prototype.printArray = function(array) {
|
||||
array.forEach(v => {
|
||||
if (v.number) {
|
||||
this.text(printerUtil.inline(v.title + '*' + v.number, `${v.price}`))
|
||||
} else {
|
||||
this.text(printerUtil.inline(v.title, `${v.price}`))
|
||||
}
|
||||
this._enqueue(commands.LF);
|
||||
})
|
||||
return this;
|
||||
};
|
||||
|
||||
|
||||
printerJobs.prototype.printQrcode = function(content) {
|
||||
|
||||
if (content) {
|
||||
const cmds = [].concat([27, 97, 1], [29, 118, 48, 0, 30, 0, 240, 0], content, [27, 74, 3], [27, 64]);
|
||||
this._enqueue(cmds);
|
||||
this._enqueue(commands.LF);
|
||||
}
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
printerJobs.prototype.printQrcodeByESC = function(content) {
|
||||
let arrPrint = [];
|
||||
|
||||
let uint8Array = gbk.encode(content);
|
||||
let encoded = Array.from(uint8Array);
|
||||
|
||||
//初始化打印机
|
||||
arrPrint= arrPrint.concat([0x1B, 0x40]); //16进制
|
||||
//居中对齐
|
||||
arrPrint=arrPrint.concat([0x1B, 0x61, 0x01]); //16进制
|
||||
//正文
|
||||
/*
|
||||
* QR Code 设置单元大小 【格式】 ASCII GS ( k pL pH 1 C n 十六进制 1D 28 6B 03
|
||||
* 00 31 43 n 十进制 29 40 107 03 0 49 67 n 功能：设置QR CODE 单元大小。
|
||||
* 说明：·n 对应QR版本号， 决定QR CODE的高度与宽度。 · 1≤n ≤16。(十六进制为0x01≤n ≤0x0f)
|
||||
*/
|
||||
//设置设置 QR Code 的单元大小为 n 点
|
||||
arrPrint=arrPrint.concat([0x1d, 0x28, 0x6b, 0x03, 0x00, 0x31, 0x43, 0x05]);
|
||||
//设置错误纠正等级
|
||||
arrPrint=arrPrint.concat([0x1d, 0x28, 0x6b, 0x03, 0x00, 0x31, 0x45, 0x05]);
|
||||
//传入数据的长度+3
|
||||
arrPrint=arrPrint.concat([0x1d, 0x28, 0x6b, encoded.length+3, 0x00, 0x31, 0x50, 0x30]);
|
||||
//二维码内容
|
||||
arrPrint=arrPrint.concat(encoded);
|
||||
//开始打印二维码
|
||||
arrPrint=arrPrint.concat([0x1d, 0x28, 0x6b, 0x03, 0x00, 0x31, 0x51, 0x30]);
|
||||
//恢复居左对齐
|
||||
arrPrint=arrPrint.concat([0x1B, 0x61, 0x00]); //16进制
|
||||
this._enqueue(arrPrint);
|
||||
this._enqueue(commands.LF);
|
||||
return this;
|
||||
};
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* 打印文字并换行
|
||||
* @param {string} content 文字内容
|
||||
*/
|
||||
printerJobs.prototype.println = function(content = '') {
|
||||
return this.print(content + commands.EOL);
|
||||
};
|
||||
|
||||
/**
|
||||
* 设置对齐方式
|
||||
* @param {string} align 对齐方式 LT/CT/RT
|
||||
*/
|
||||
printerJobs.prototype.setAlign = function(align) {
|
||||
this._enqueue(commands.TEXT_FORMAT['TXT_ALIGN_' + align.toUpperCase()]);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 设置字体
|
||||
* @param {string} family A/B/C
|
||||
*/
|
||||
printerJobs.prototype.setFont = function(family) {
|
||||
this._enqueue(commands.TEXT_FORMAT['TXT_FONT_' + family.toUpperCase()]);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 设定字体尺寸
|
||||
* @param {number} width 字体宽度 1~2
|
||||
* @param {number} height 字体高度 1~2
|
||||
*/
|
||||
printerJobs.prototype.setSize = function(width, height) {
|
||||
if (2 >= width && 2 >= height) {
|
||||
this._enqueue(commands.TEXT_FORMAT.TXT_NORMAL);
|
||||
if (2 === width && 2 === height) {
|
||||
this._enqueue(commands.TEXT_FORMAT.TXT_4SQUARE);
|
||||
} else if (1 === width && 2 === height) {
|
||||
this._enqueue(commands.TEXT_FORMAT.TXT_2HEIGHT);
|
||||
} else if (2 === width && 1 === height) {
|
||||
this._enqueue(commands.TEXT_FORMAT.TXT_2WIDTH);
|
||||
}
|
||||
}
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 设定字体是否加粗
|
||||
* @param {boolean} bold
|
||||
*/
|
||||
printerJobs.prototype.setBold = function(bold) {
|
||||
if (typeof bold !== 'boolean') {
|
||||
bold = true;
|
||||
}
|
||||
this._enqueue(bold ? commands.TEXT_FORMAT.TXT_BOLD_ON : commands.TEXT_FORMAT.TXT_BOLD_OFF);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 设定是否开启下划线
|
||||
* @param {boolean} underline
|
||||
*/
|
||||
printerJobs.prototype.setUnderline = function(underline) {
|
||||
if (typeof underline !== 'boolean') {
|
||||
underline = true;
|
||||
}
|
||||
this._enqueue(underline ? commands.TEXT_FORMAT.TXT_UNDERL_ON : commands.TEXT_FORMAT.TXT_UNDERL_OFF);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 设置行间距为 n 点行,默认值行间距是 30 点
|
||||
* @param {number} n 0≤n≤255
|
||||
*/
|
||||
printerJobs.prototype.setLineSpacing = function(n) {
|
||||
if (n === undefined || n === null) {
|
||||
this._enqueue(commands.LINE_SPACING.LS_DEFAULT);
|
||||
} else {
|
||||
this._enqueue(commands.LINE_SPACING.LS_SET);
|
||||
this._enqueue([n]);
|
||||
}
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 打印空行
|
||||
* @param {number} n
|
||||
*/
|
||||
printerJobs.prototype.lineFeed = function(n = 1) {
|
||||
return this.print(new Array(n).fill(commands.EOL).join(''));
|
||||
};
|
||||
|
||||
/**
|
||||
* 设置字体颜色，需要打印机支持
|
||||
* @param {number} color - 0 默认颜色黑色 1 红色
|
||||
*/
|
||||
printerJobs.prototype.setColor = function(color) {
|
||||
this._enqueue(commands.COLOR[color === 1 ? 1 : 0]);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* https://support.loyverse.com/hardware/printers/use-the-beeper-in-a-escpos-printers
|
||||
* 蜂鸣警报，需要打印机支持
|
||||
* @param {number} n 蜂鸣次数,1-9
|
||||
* @param {number} t 蜂鸣长短,1-9
|
||||
*/
|
||||
printerJobs.prototype.beep = function(n, t) {
|
||||
this._enqueue(commands.BEEP);
|
||||
this._enqueue([n, t]);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 清空任务
|
||||
*/
|
||||
printerJobs.prototype.clear = function() {
|
||||
this._queue = Array.from(commands.HARDWARE.HW_INIT);
|
||||
return this;
|
||||
};
|
||||
|
||||
/**
|
||||
* 返回ArrayBuffer
|
||||
*/
|
||||
printerJobs.prototype.buffer = function() {
|
||||
return new Uint8Array(this._queue).buffer;
|
||||
};
|
||||
|
||||
export default printerJobs
|
||||
91
pages/print/print/printerutil.js
Normal file
91
pages/print/print/printerutil.js
Normal file
@ -0,0 +1,91 @@
|
||||
// 打印机纸宽58mm，页的宽度384，字符宽度为1，每行最多盛放32个字符
|
||||
const PAGE_WIDTH = 384;
|
||||
const MAX_CHAR_COUNT_EACH_LINE = 32;
|
||||
|
||||
/**
|
||||
* @param str
|
||||
* @returns {boolean} str是否全是中文
|
||||
*/
|
||||
function isChinese(str) {
|
||||
return /^[\u4e00-\u9fa5]$/.test(str);
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回字符串宽度(1个中文=2个英文字符)
|
||||
* @param str
|
||||
* @returns {number}
|
||||
*/
|
||||
function getStringWidth(str) {
|
||||
let width = 0;
|
||||
for (let i = 0, len = str.length; i < len; i++) {
|
||||
width += isChinese(str.charAt(i)) ? 2 : 1;
|
||||
}
|
||||
return width;
|
||||
}
|
||||
|
||||
/**
|
||||
* 同一行输出str1, str2，str1居左, str2居右
|
||||
* @param {string} str1 内容1
|
||||
* @param {string} str2 内容2
|
||||
* @param {number} fontWidth 字符宽度 1/2
|
||||
* @param {string} fillWith str1 str2之间的填充字符
|
||||
*
|
||||
*/
|
||||
function inline(str1, str2, fillWith = ' ', fontWidth = 1) {
|
||||
const lineWidth = MAX_CHAR_COUNT_EACH_LINE / fontWidth;
|
||||
// 需要填充的字符数量
|
||||
let fillCount = lineWidth - (getStringWidth(str1) + getStringWidth(str2) + 2) % lineWidth;
|
||||
let fillStr = new Array(fillCount).fill(fillWith.charAt(0)).join('');
|
||||
return str1 + fillStr + str2;
|
||||
}
|
||||
|
||||
/**
|
||||
* 用字符填充一整行
|
||||
* @param {string} fillWith 填充字符
|
||||
* @param {number} fontWidth 字符宽度 1/2
|
||||
*/
|
||||
function fillLine(fillWith = '-', fontWidth = 1) {
|
||||
const lineWidth = MAX_CHAR_COUNT_EACH_LINE / fontWidth;
|
||||
return new Array(lineWidth).fill(fillWith.charAt(0)).join('');
|
||||
}
|
||||
|
||||
/**
|
||||
* 文字内容居中，左右用字符填充
|
||||
* @param {string} str 文字内容
|
||||
* @param {number} fontWidth 字符宽度 1/2
|
||||
* @param {string} fillWith str1 str2之间的填充字符
|
||||
*/
|
||||
function fillAround(str, fillWith = '-', fontWidth = 1) {
|
||||
const lineWidth = MAX_CHAR_COUNT_EACH_LINE / fontWidth;
|
||||
let strWidth = getStringWidth(str);
|
||||
// 内容已经超过一行了，没必要填充
|
||||
if (strWidth >= lineWidth) {
|
||||
return str;
|
||||
}
|
||||
// 需要填充的字符数量
|
||||
let fillCount = lineWidth - strWidth;
|
||||
// 左侧填充的字符数量
|
||||
let leftCount = Math.round(fillCount / 2);
|
||||
// 两侧的填充字符，需要考虑左边需要填充，右边不需要填充的情况
|
||||
let fillStr = new Array(leftCount).fill(fillWith.charAt(0)).join('');
|
||||
return fillStr + str + fillStr.substr(0, fillCount - leftCount);
|
||||
}
|
||||
|
||||
// ArrayBuffer转16进度字符串示例
|
||||
function ab2hex(buffer) {
|
||||
const hexArr = Array.prototype.map.call(
|
||||
new Uint8Array(buffer),
|
||||
function(bit) {
|
||||
return ('00' + bit.toString(16)).slice(-2)
|
||||
}
|
||||
)
|
||||
return hexArr.join(',')
|
||||
}
|
||||
|
||||
|
||||
export {
|
||||
inline,
|
||||
fillLine,
|
||||
fillAround,
|
||||
ab2hex,
|
||||
};
|
||||
66
pages/print/print/util.js
Normal file
66
pages/print/print/util.js
Normal file
@ -0,0 +1,66 @@
|
||||
const formatTime = date => {
|
||||
const year = date.getFullYear()
|
||||
const month = date.getMonth() + 1
|
||||
const day = date.getDate()
|
||||
const hour = date.getHours()
|
||||
const minute = date.getMinutes()
|
||||
const second = date.getSeconds()
|
||||
|
||||
return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
|
||||
}
|
||||
|
||||
const formatNumber = n => {
|
||||
n = n.toString()
|
||||
return n[1] ? n : '0' + n
|
||||
}
|
||||
|
||||
|
||||
//4合1
|
||||
function convert4to1(res) {
|
||||
let arr = [];
|
||||
for (let i = 0; i < res.length; i++) {
|
||||
if (i % 4 == 0) {
|
||||
let rule = 0.29900 * res[i] + 0.58700 * res[i + 1] + 0.11400 * res[i + 2];
|
||||
if (rule > 200) {
|
||||
res[i] = 0;
|
||||
} else {
|
||||
res[i] = 1;
|
||||
}
|
||||
arr.push(res[i]);
|
||||
}
|
||||
}
|
||||
return arr;
|
||||
}
|
||||
|
||||
//8合1
|
||||
function convert8to1(arr) {
|
||||
let data = [];
|
||||
for (let k = 0; k < arr.length; k += 8) {
|
||||
let temp = arr[k] * 128 + arr[k + 1] * 64 + arr[k + 2] * 32 + arr[k + 3] * 16 + arr[k + 4] * 8 + arr[k + 5] * 4 +
|
||||
arr[k + 6] * 2 + arr[k + 7] * 1
|
||||
data.push(temp);
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
//我的图片宽度是240，那么拼接的指令就是[29, 118, 48, 0, 30, 0, 240, 0]
|
||||
//我的图片宽度是160，那么拼接的指令就是[29, 118, 48, 0, 20, 0, 160, 0]
|
||||
//补充一点，打印非二维码的图片，宽度一定要是24的倍数，不然打印也会出现乱码
|
||||
function toArrayBuffer(res) {
|
||||
let arr = convert4to1(res.data);
|
||||
let data = convert8to1(arr);
|
||||
let cmds = [].concat([27, 97, 1], [29, 118, 48, 0, 30, 0, 240, 0], data, [27, 74, 3], [27, 64]);
|
||||
return new Uint8Array(cmds).buffer;
|
||||
}
|
||||
|
||||
function zip_image(res) {
|
||||
let arr = convert4to1(res.data);
|
||||
let data = convert8to1(arr);
|
||||
return data;
|
||||
}
|
||||
|
||||
export {
|
||||
formatTime,
|
||||
toArrayBuffer,
|
||||
zip_image,
|
||||
}
|
||||
5
pages/print/print/weapp.qrcode.esm.js
Normal file
5
pages/print/print/weapp.qrcode.esm.js
Normal file
File diff suppressed because one or more lines are too long
BIN
static/images/login/bg-yun.png
Normal file
BIN
static/images/login/bg-yun.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 25 KiB |
Binary file not shown.
|
Before Width: | Height: | Size: 250 KiB After Width: | Height: | Size: 78 KiB |
Loading…
Reference in New Issue
Block a user