merge upstream

components/TextToHex/textToDotMatrixFor7305.vue

@@ -0,0 +1,205 @@
+<template>
+	<view>
+		<canvas type="2d" canvas-id="reusableCanvas" :width="currentCanvasWidth" :height="currentCanvasHeight"
+			class="offscreen-canvas"></canvas>
+	</view>
+</template>
+
+<script>
+	export default {
+		name: "textToDotMatrix",
+		props: {
+			txts: {
+				type: Array,
+				default: () => [],
+				validator: (value) => value.every(item => typeof item === 'string')
+			},
+			
+			fontSize: {
+				type: Number,
+				default: 16,
+				validator: (value) => value > 0 && value <= 100
+			},
+			bgColor: {
+				type: String,
+				default: "#ffffff"
+			},
+			color: {
+				type: String,
+				default: "#000000"
+			}
+		},
+		data() {
+			return {
+				// 当前Canvas的宽高（动态调整）
+				currentCanvasWidth: 0,
+				currentCanvasHeight: 0,
+				// Canvas上下文（复用）
+				ctx: null
+			};
+		},
+		computed: {
+			validTxts() {
+				return this.txts.filter(line => line.trim() !== '');
+			}
+		},
+		mounted() {
+			// 初始化Canvas上下文（只创建一次）
+			this.ctx = uni.createCanvasContext('reusableCanvas', this);
+		},
+		methods: {
+			/**
+			 * 估算单行文本所需的Canvas宽度
+			 */
+			calcLineWidth(textLine) {
+				return textLine.length * this.fontSize;
+			},
+
+			/**
+			 * 清除Canvas内容
+			 */
+			clearCanvas() {
+				this.ctx.setFillStyle(this.bgColor);
+				this.ctx.fillRect(0, 0, this.currentCanvasWidth, this.currentCanvasHeight);
+			},
+
+			/**
+			 * 复用单个Canvas处理所有文本行
+			 */
+			async drawAndGetPixels() {
+				let binaryToHex = (binaryArray) => {
+					if (!Array.isArray(binaryArray) || binaryArray.length !== 8) {
+						throw new Error("输入必须是包含8个元素的二进制数组");
+					}
+
+					// 检查每个元素是否为0或1
+					if (!binaryArray.every(bit => bit === 0 || bit === 1)) {
+						throw new Error("数组元素必须只能是0或1");
+					}
+
+					// 将二进制数组转换为十进制数
+					let decimalValue = 0;
+					for (let i = 0; i < 8; i++) {
+						// 计算每个位的权重并累加
+						decimalValue += binaryArray[i] * Math.pow(2, 7 - i);
+					}
+
+					// 将十进制转换为十六进制字符串，并添加0x前缀
+					const hexString = "0x" + decimalValue.toString(16).padStart(2, '0').toUpperCase();
+
+					return hexString;
+				}
+
+				let convertCharToMatrix = (imageData, item) => {
+					const charWidth = 13;
+					const charHeight = 12;
+					const pixels = [];
+					for (let i = 0; i < imageData.length; i += 4) {
+						const R = imageData[i];
+						pixels.push(R < 128 ? 1 : 0);
+					}
+
+					const lowBytes = new Array(charWidth).fill(0);
+					const highBytes = new Array(charWidth).fill(0);
+
+					for (let col = 0; col < charWidth; col++) {
+						for (let row = 0; row < charHeight; row++) {
+							const pixel = pixels[row * charWidth + col];
+							if (pixel === 1) {
+								if (row < 8) {
+									lowBytes[col] |= (1 << row);
+								} else {
+									highBytes[col] |= (1 << (row - 8));
+								}
+							}
+						}
+					}
+					return [...lowBytes, ...highBytes];
+				}
+
+				let drawTxt = async (textLine) => {
+					let result = {};
+					let ctx = this.ctx;
+
+					// 1. 动态调整Canvas尺寸
+					this.currentCanvasWidth = 13;
+					this.currentCanvasHeight = 12;
+
+					// 2. 清空Canvas（绘制背景）
+					this.clearCanvas();
+
+					// 3. 设置文字样式
+					ctx.setFillStyle(this.color);
+					ctx.setTextBaseline('middle');
+					// ctx.setTextAlign('center')
+					ctx.setFontSize(this.fontSize);
+					ctx.font = `${this.fontSize}px "PingFangBold", "PingFang SC", Arial, sans-serif`;
+
+					// 4. 绘制当前行文本
+					let currentX = 0;
+					let currentY = this.fontSize / 2 + 1;
+					for (let j = 0; j < textLine.length; j++) {
+						let char = textLine[j];
+						ctx.fillText(char, currentX, currentY);
+						// 按实际字符宽度计算间距
+						let charWidth = ctx.measureText(char).width;
+						currentX += charWidth;
+					}
+
+					// 5. 异步绘制并获取像素数据（串行处理避免冲突）
+					await new Promise((resolve, reject) => {
+						ctx.draw(false, () => {
+							uni.canvasGetImageData({
+								canvasId: 'reusableCanvas',
+								x: 0,
+								y: 0,
+								width: this.currentCanvasWidth,
+								height: this.currentCanvasHeight,
+								success: res => {
+									result = {
+										line: textLine,
+										pixelData: res.data,
+										width: this.currentCanvasWidth,
+										height: this.currentCanvasHeight
+									};
+									resolve();
+								},
+								fail: err => {
+									// console.error(`处理第${i+1}行失败:`, err);
+									reject(err)
+								}
+							});
+						});
+					});
+
+					return result;
+				}
+				let arr = [];
+				// 循环处理每行文本
+				for (let i = 0; i < this.validTxts.length; i++) {
+
+					let linePixls = [];
+					let item = this.validTxts[i];
+					// console.log("item=", item);
+					for (var j = 0; j < item.length; j++) {
+						let result = await drawTxt(item[j]);
+						linePixls.push(convertCharToMatrix(result.pixelData, item));
+					}
+					// console.log("hexs=", linePixls.join(","));
+					arr.push(linePixls);
+				}
+
+				return arr;
+			}
+		}
+	};
+</script>
+
+<style>
+	.offscreen-canvas {
+		position: fixed;
+		left: -9999px;
+		top: -9999px;
+		visibility: hidden;
+	}
+</style>

utils/BleHelper.js

@@ -33,9 +33,11 @@ class BleHelper {
 		if (linkedDevices && linkedDevices.length && linkedDevices.length > 0) {
 			// console.log("111111", linkedDevices);
 			linkedDevices = linkedDevices.filter((v) => {
-				v.Linked = false;
+				if(v){
-				v.notifyState = false;
+					v.Linked = false;
-				return true;
+					v.notifyState = false;
+				}				
+				return v?true:false;
 			});
 		}