增加左移和右移

lefengyang

2026-08-17 6164b0c02518d3a8fb83a22dc7752f2a180714ad

 ledApp/pages/addTemplate/addTemplate.vue

@@ -124,30 +124,50 @@
      <!-- 动画弹出框 -->
      <uv-popup ref="popupAnimation" mode="center" @change="changeAnimation" :safeAreaInsetTop="false" :safeAreaInsetBottom="false" :zoom="false" duration="0">
         <view class="animation_pixel">
            <view class="back_btn" @click="popupAnimationClose">
            <view class="back_btn" v-show="false" @click="popupAnimationClose">
               <uv-icon name="arrow-leftward" color="#333" size="30"></uv-icon>
            </view>
            <!-- 操作按钮 -->
            <view class="controls" style="left: 30rpx;">
               <uv-button type="success" :plain="true" :text="showControls ? '收回' : '操作'" @click="toggleControls"></uv-button>
            </view>

            <!-- 动画按钮 -->
            <view class="controls">
            <view class="controls" v-if="showControls">
               <uv-button type="primary" :plain="true" text="分辨率" @click="changeRatio()"></uv-button>
               <uv-button type="primary" :plain="true" text="颜色" @click="changeColor()"></uv-button>
               <uv-button type="primary" :plain="true" text="添加文字" @click="addText()"></uv-button>
               <uv-button type="primary" :plain="true" text="左移" @click="shiftLeft()"></uv-button>
               <uv-button type="primary" :plain="true" text="右移" @click="shiftRight()"></uv-button>
               <uv-button type="primary" :plain="true" text="文字" @click="addText()"></uv-button>
               <uv-button type="primary" :plain="true" text="清除" @click="clear()"></uv-button>
               <uv-button type="primary" :plain="true" text="保存" @click="clickSaveData"></uv-button>
            </view>
            
            <!-- 文字生成图形 -->
            <canvas canvas-id="myCanvas" id="myCanvas" class="canvas" :style="{ width: canvasWidth + 'px', height: canvasHeight + 'px' }"></canvas>
            <!-- canvasWidth:{{ canvasWidth }} | canvasHeight:{{ canvasHeight }} -->

            <view class="pixel_grid" @touchstart.prevent="handleTouchStart" @touchmove.prevent="handleTouchMove"
               @touchend.prevent="handleTouchEnd" @touchcancel.prevent="handleTouchEnd" 
               :style="{
                  gridTemplateRows: `repeat(${height}, 1fr)`,
                  gridTemplateColumns: `repeat(${width}, 1fr)`
               }">
               <view class="pixel_cell" v-for="(cell, cellIndex) in pixelData" :key="cellIndex">
                  <view class="pixel_cell_item" :style="{ backgroundColor: cell }"></view>
            <!-- 点阵图 -->
            <scroll-view scroll-x @scroll="handleScroll">
               <view
                  class="pixel_grid"
                  @touchstart.prevent="handleTouchStart"
                  @touchmove.prevent="handleTouchMove"
                  @touchend.prevent="handleTouchEnd"
                  @touchcancel.prevent="handleTouchEnd"
                  :style="{
                     gridTemplateRows: `repeat(${height}, 1fr)`,
                     gridTemplateColumns: `repeat(${width * (modeVal == 2 ? 10 : 1)}, 1fr)`,
                     width: modeVal == 2 ? '1000vw': '100vw',
                  }">
                  <view class="pixel_cell" v-for="(cell, cellIndex) in pixelData" :key="cellIndex">
                     <view class="pixel_cell_item" :style="{ backgroundColor: cell }"></view>
                  </view>
               </view>
               <view style="height:20vh;"></view>
            </scroll-view>
            <view class="exit_btn">
               <uv-button type="success" :plain="true" text="退出" @click="popupAnimationClose"></uv-button>
            </view>
         </view>
      </uv-popup>
@@ -194,6 +214,10 @@
               {
                  name: '动画帧切换',
                  val: 1
               },
               {
                  name: '滚动动画',
                  val: 2
               }
            ],
            modeVal: 0,
@@ -255,8 +279,9 @@
            previewFrameIndex: 0,
            previewTimer: null,
            previewWidth: 24,
            previewHeight: 12
				
            previewHeight: 12,
            showControls: false,
            scrollLeft: 0,
         }
      },
      computed: {
@@ -294,6 +319,9 @@
         }
      },
      methods: {
         handleScroll(e){
            this.scrollLeft = e.detail.scrollLeft
         },
         // 获取编辑详情
         getTempleteInfo(){
            templeteInfo(this.tId).then(res=>{
@@ -406,6 +434,15 @@
                  return this.mergeRowsToString(item)
               });
               this.fpsTotal = this.total
            } else if (this.modeVal == 2) {
               const scrollFrames = this.generateScrollFrames(this.fpsData[0]);
               const parsedData = scrollFrames.map(item => {
                  return this.toSnakeData(item, this.specWidth);
               });
               this.animationData = parsedData.map(item => {
                  return this.mergeRowsToString(item);
               });
               this.fpsTotal = scrollFrames.length;
            }
            console.log('animationData--------', this.animationData)
            
@@ -505,10 +542,10 @@
            console.log('ratio---', ratio[0]);
            this.height = Number(ratio[0]);
            this.width = Number(ratio[1]);
            this.canvasWidth = this.width * 10;
            this.canvasWidth = this.width * (this.modeVal == 2 ? 10 * 10 : 10);
            this.canvasHeight = this.height * 10;
            // 重新初始化一维数组
            this.pixelData = new Array(this.height * this.width).fill('')
            const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
            this.pixelData = new Array(this.height * colCount).fill('')
            console.log('pixelData---', this.pixelData);
         },
         // 预先获取像素网格的位置信息
@@ -526,14 +563,16 @@
         getCellByTouch(touch, cb) {
            this.getGridRect(rect => {
               if (!rect) return
               const x = touch.clientX - rect.left
               const x = touch.clientX - rect.left + this.scrollLeft
               const y = touch.clientY - rect.top
               const cellWidth = rect.width / this.width
               const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
               const cellWidth = rect.width / colCount
               const cellHeight = rect.height / this.height
               const colIndex = Math.floor(x / cellWidth)
               const rowIndex = Math.floor(y / cellHeight)
               console.log('colCount', colCount, 'rowIndex', rowIndex, 'colIndex', colIndex)
               if (
                  colIndex >= 0 && colIndex < this.width &&
                  colIndex >= 0 && colIndex < colCount &&
                  rowIndex >= 0 && rowIndex < this.height
               ) {
                  cb({
@@ -573,7 +612,8 @@
         handleClick(rowIndex, colIndex) {
            console.log(rowIndex, colIndex)
            // 计算一维数组的索引
            const index = rowIndex * this.width + colIndex
            const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
            const index = rowIndex * colCount + colIndex
            // 如果当前像素有颜色，则清除；如果没有颜色，则添加当前选择的颜色
            const currentColor = this.pixelData[index]
            const newColor = currentColor ? '' : this.color
@@ -581,8 +621,34 @@
         },
         clear() {
            ctx && ctx.clearRect(0, 0, 1000, 1000)
            const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
            // 将所有像素点设置为空字符串
            this.pixelData = new Array(this.height * this.width).fill('')
            this.pixelData = new Array(this.height * colCount).fill('')
         },
         shiftLeft() {
            const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
            for (let r = 0; r < this.height; r++) {
               const rowStart = r * colCount
               const row = this.pixelData.slice(rowStart, rowStart + colCount)
               const shifted = row.slice(1).concat(row.slice(0, 1))
               for (let c = 0; c < colCount; c++) {
                  this.$set(this.pixelData, rowStart + c, shifted[c])
               }
            }
         },
         shiftRight() {
            const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
            for (let r = 0; r < this.height; r++) {
               const rowStart = r * colCount
               const row = this.pixelData.slice(rowStart, rowStart + colCount)
               const shifted = row.slice(colCount - 1).concat(row.slice(0, colCount - 1))
               for (let c = 0; c < colCount; c++) {
                  this.$set(this.pixelData, rowStart + c, shifted[c])
               }
            }
         },
         toggleControls() {
            this.showControls = !this.showControls;
         },
         // 模版动画弹出框
         changeAnimation(e){
@@ -603,10 +669,15 @@
         popupAnimationOpen(index){
            this.$refs.popupAnimation.open();
            this.fpsIndex = index
            this.canvasWidth = this.width * (this.modeVal == 2 ? 10 * 10 : 10);
            
            if(this.fpsList[this.fpsIndex] == null){
               console.log('第一次编辑-----null')
               this.pixelData = new Array(this.height * this.width).fill('')
               let pointCount = this.height * this.width
               if (this.modeVal == 2) {
                  pointCount *= 10
               }
               this.pixelData = new Array(pointCount).fill('')
            }else{
               console.log('已编辑过-----')
               this.pixelData = this.fpsList[this.fpsIndex]
@@ -615,7 +686,8 @@
         // 关闭模版动画
         popupAnimationClose(){
            this.$refs.popupAnimation.close();
            this.pixelData = new Array(this.height * this.width).fill('')
            const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
            this.pixelData = new Array(this.height * colCount).fill('')
         },
         // 屏幕规格
         changeSpec(e) {
@@ -640,6 +712,51 @@
            const rowStrings = rows.map(r => r.join('')) // 每行合并
            return rowStrings.join('') // 所有行合并
         },
         // 生成滚动动画帧数据（modeVal==2）
         // 从点阵图左侧开始，按照设定分辨率窗口提取动画帧，每帧左移3个像素，剩余全空时停止
         generateScrollFrames(data) {
            const cols = this.specWidth;
            const rows = this.specHeight;
            const totalCols = this.specWidth * 10;
            const step = 3;

            let grid = [];
            for (let r = 0; r < rows; r++) {
               grid.push(data.slice(r * totalCols, (r + 1) * totalCols));
            }

            const frames = [];
            let offset = 0;

            while (offset < totalCols) {
               let remainingEmpty = true;
               for (let r = 0; r < rows; r++) {
                  for (let c = offset; c < totalCols; c++) {
                     if (grid[r][c] !== '' && grid[r][c] !== '000000') {
                        remainingEmpty = false;
                        break;
                     }
                  }
                  if (!remainingEmpty) break;
               }

               if (remainingEmpty) break;

               let frame = [];
               for (let r = 0; r < rows; r++) {
                  let row = grid[r].slice(offset, offset + cols);
                  while (row.length < cols) {
                     row.push('000000');
                  }
                  frame = frame.concat(row);
               }

               frames.push(frame);
               offset += step;
            }

            return frames;
         },
         // 生成一帧动画其他帧数据
         generateFrames(data, frameCount = 24) {
            const cols = this.specWidth; // 每行 24 个
@@ -684,7 +801,8 @@
         changeMode(e) {
            this.fpsList = []
            this.fpsData = []
            if (e == 0) {
            this.gridRect = null
            if (e == 0 || e == 2) {
               this.total = 1
            } else {
               this.total = 2
@@ -764,19 +882,24 @@
               ctx = uni.createCanvasContext('myCanvas', this);
         
               // 设置字体样式
               ctx.setFontSize(this.canvasHeight * 0.9);
               ctx.setFontSize(this.canvasHeight);
               ctx.setFillStyle('#000')
               ctx.setTextAlign('center')
               ctx.setTextBaseline('middle')
               // 绘制文字
               // 计算文字位置
               // 水平居中
               const x = this.canvasWidth / 2;
               // 垂直居中，稍微向上偏移一点
               const y = this.canvasHeight / 2;
			
               // 绘制文字
               ctx.fillText(char, x, y);
               const y = this.canvasHeight / 2 + 10;
					
               if (this.modeVal == 2) {
                  // 滚动动画：文字靠左对齐
                  ctx.setTextAlign('left')
                  const x = 20;
                  ctx.fillText(char, x, y);
               } else {
                  // 其他模式：文字水平居中
                  ctx.setTextAlign('center')
                  const x = this.canvasWidth / 2;
                  ctx.fillText(char, x, y);
               }
         
               // 绘制到画布
               ctx.draw(false, () => {
@@ -788,18 +911,19 @@
                     width: this.canvasWidth,
                     height: this.canvasHeight,
                     success: (res) => {
                        console.log(res)
                        console.log('canvasGetImageData', res)
                        const imageData = res.data;
                        // 生成一维数组
                        const pixelArray = new Array(this.height * this.width).fill('')
			
                        const colCount = this.width * (this.modeVal == 2 ? 10 : 1)
                        const pixelArray = new Array(this.height * colCount).fill('')

                        // 计算每个格子的像素大小
                        const cellWidth = this.canvasWidth / this.width;
                        const cellWidth = this.canvasWidth / colCount;
                        const cellHeight = this.canvasHeight / this.height;
         
                        // 生成一维数组
                        for (let y = 0; y < this.height; y++) {
                           for (let x = 0; x < this.width; x++) {
                           for (let x = 0; x < colCount; x++) {
                              let blackPixels = 0;
                              let totalPixels = 0;
         
@@ -817,7 +941,7 @@
         
                                    // 计算亮度
                                    const brightness = 0.3 * r + 0.59 * g + 0.11 * b;
			

                                    // 如果亮度小于阈值且透明度大于阈值，则认为是黑色
                                    if (brightness < 128 && a > 128) {
                                       blackPixels++;
@@ -825,11 +949,11 @@
                                    totalPixels++;
                                 }
                              }
			

                              // 如果黑色像素占比超过阈值，则设置为当前选择的颜色
                              const isBlack = blackPixels / totalPixels > 0.3;
                              const arrayIndex = y * this.width + x;
                              pixelArray[arrayIndex] = isBlack ? this.color : ''; // 改为颜色值或空字符串
                              const arrayIndex = y * colCount + x;
                              pixelArray[arrayIndex] = isBlack ? this.color : '';
                           }
                        }
         
@@ -851,7 +975,7 @@
               });
               return;
            }
            this.previewWidth = this.width;
            this.previewWidth = this.modeVal == 2 ? this.specWidth : this.width;
            this.previewHeight = this.height;
            this.previewFrames = this.buildPreviewFrames();
            this.previewFrameIndex = 0;
@@ -869,6 +993,10 @@
               const data = this.fpsList[0];
               if (!data) return [];
               return this.generatePreviewFrames(data, 24);
            } else if (this.modeVal == 2) {
               const data = this.fpsList[0];
               if (!data) return [];
               return this.generateScrollFrames(data);
            } else {
               const frames = [];
               for (let i = 0; i < this.total; i++) {
@@ -982,14 +1110,30 @@
      }
   }
   
   .controls {
   .action_btn {
      position: absolute;
      bottom: 10px;
      left: 50px;
      z-index: 10;
      background: linear-gradient(142deg, #6FD2FF 0%, #268DFF 100%);
      padding: 12px 24px;
      border-radius: 30px;
      box-shadow: 0 4px 12px rgba(38, 141, 255, 0.4);
   }
   .controls {
      position: absolute;
      bottom: 10rpx;
      left: 100rpx;
      display: flex;
      gap: 20px;
      gap: 10rpx;
      z-index: 9;
   }
   .exit_btn{
      position: absolute;
      right: 30rpx;
      bottom: 10rpx;
      z-index: 9999;
   }
   .animation_pixel{
      width: 100vw;
      height: 100vh;
@@ -1009,11 +1153,8 @@
         top: -9999px;
      }
      .pixel_grid {
         position: fixed;
         left: 0;
         top: var(--status-bar-height);
         right: 0;
         bottom: 0;
         height: 80vh;
         border-bottom: 1px solid #eee;
         display: grid;
         gap: 1px;
         box-sizing: border-box;