aida_front/src/component/Canvas/canvasExample.vue

<script setup>
import { ref } from "vue";
import CanvasEditor from "./CanvasEditor/index.vue";
import RedGreenModeExample from "./RedGreenModeExample.vue";
import ExistsImageList from "@/component/Canvas/ExistsImageList/index.vue";
import ToolButton from "@/component/Canvas/ExistsImageList/ToolButton.vue";

// 当前显示的组件
const canvasEditor = ref();
const currentView = ref("canvasEditor"); // 默认显示红绿图示例 canvasEditor      redGreenExample

const clothingImageUrl = "/src/assets/work/3.PNG";
const clothingImageUrlInit = "/src/assets/work/5.PNG";

const imageData = [
  {
    name: "风景照片",
    type: "风景",
    imgList: [
      {
        url: "https://www.minio-api.aida.com.hk/aida-users/83/printboard/7a0cccfc-1e3c-4c38-af65-d6179f21a267.png?response-content-type=image%2Fpng&response-content-disposition=inline&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=admin%2F20250723%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20250723T025046Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host&X-Amz-Signature=3612d6c168207bebdae2fa7c7c2c86ea0f48358b99b8b41dec9e2ff15e197e15",
        name: "山景",
      },
      { url: "/src/assets/work/2.PNG", name: "海景" },
    ],
  },
  {
    name: "人物照片",
    type: "人物",
    imgList: [
      { url: "/src/assets/work/3.PNG", name: "肖像1" },
      { url: "/src/assets/work/5.PNG", name: "肖像2" },
    ],
  },
  {
    name: "衣服照片",
    type: "衣服",
    imgList: [
      { url: "/src/assets/work/3.PNG", name: "肖像1" },
      { url: "/src/assets/work/5.PNG", name: "肖像2" },
    ],
  },
  {
    name: "裤子照片",
    type: "裤子",
    imgList: [
      { url: "/src/assets/work/IMG_0001.PNG", name: "肖像1" },
      { url: "/src/assets/work/IMG_0008.PNG", name: "肖像2" },
    ],
  },
];

const handleImageSelect = (selectedImage) => {
  console.log("选中的图片:", selectedImage);
  // selectedImage 包含：url, name, categoryName, categoryType, originalItem
};

// 切换视图
function switchView(view) {
  currentView.value = view;
}

// 定义编辑器配置
const editorConfig = {
  width: 800,
  height: 600,
  backgroundColor: "#ffffff", // 画布背景色
};

const exportImage = async () => {
  if (canvasEditor.value) {
    const base64 = await canvasEditor.value.exportImage({
      isContainFixed: true, // 是否导出底图
      isContainBg: false, // 是否导出背景
    });

    // 模拟下载图片
    const link = document.createElement("a");
    link.href = base64;
    link.download = "canvas_image.png"; // 设置下载文件名
    document.body.appendChild(link);
    link.click(); // 触发下载
    document.body.removeChild(link); // 下载后移除链接元素
  }
};

const changeCanvas = (command) => {
  console.log(command);
};

const changeImageUrl = "/src/assets/work/1.PNG";
const loadImageUrlToLayer = async () => {
  try {
    const layerToLayer1 = canvasEditor?.value?.layers?.[0]?.id;
    const layerId = await canvasEditor?.value?.addImageToLayer?.(
      changeImageUrl,
      {
        layerId: layerToLayer1, // 指定添加到的图层ID
        imageMode: "contains", // 设置图片包含在画布内
      }
    );
    console.log("新图层ID：", layerId);
  } catch (error) {
    console.error("加载图片到图层失败：", error);
  }
};

// 自定义工具配置相关
const customToolsList = ref([
  {
    id: "exportPNG",
    title: "导出PNG", //导出画布图片
    action: exportAsPNG,
    icon: { name: "CExport", size: "24" },
    class: "export-btn",
  },
  {
    id: "saveCanvas",
    title: "保存画布",
    action: saveCanvas,
    icon: { name: "CBottom", size: "24" },
    class: "save-btn",
  },

  {
    id: "readCanvas",
    title: "读取画布",
    action: canvasProject,
    icon: { name: "CMiniMap", size: "24" },
    class: "clear-btn",
  },
]);

// 自定义工具方法
function exportAsPNG() {
  console.log("导出PNG");
  // 实现导出PNG逻辑
  exportImage();
}

function saveCanvas() {
  console.log("保存项目");
  // 实现保存画布逻辑
  const json = canvasEditor.value.getJSON();
  localStorage.setItem("canvasProject", json);
}

function canvasProject() {
  console.log("读取项目");
  // 实现读取画布逻辑
  const json = localStorage.getItem("canvasProject");
  if (json) {
    console.log("读取的项目JSON：", JSON.parse(json)?.layers);
    canvasEditor.value.loadJSON(json);
  } else {
    console.warn("没有找到保存的画布项目");
  }
}

// 处理自定义工具点击
const handleCustomToolClick = (tool) => {
  tool.action();
};

const changeFixedImage = () => {
  canvasEditor.value.changeFixedImage(changeImageUrl, {
    imageMode: "contains", // 设置底图包含在画布内
  });
};

const canvasInit = () => {
  console.log("画布初始化完成");
  // 可以在这里执行一些初始化逻辑
  // canvasEditor.value.changeFixedImage(clothingImageUrlInit, {
  //   imageMode: "contains", // 设置底图包含在画布内
  // });
};

const isShowLeft = ref(true);
</script>

<template>
  <div class="app-container-example">
    <!-- 模拟左侧导航栏 -->
    <div
      class="app-wrapper-btns"
      :class="{ hide: !isShowLeft }"
      @click="isShowLeft = !isShowLeft"
    >
      <div class="app-btn">收起/展开</div>
    </div>
    <!-- 内容区域 -->
    <div class="app-content">
      <!-- 红绿图模式示例 -->
      <RedGreenModeExample
        v-if="currentView === 'redGreenExample'"
        key="redGreenExample"
      >
      </RedGreenModeExample>

      <!-- 普通画布编辑器 -->
      <CanvasEditor
        ref="canvasEditor"
        key="canvasEditor"
        v-if="currentView === 'canvasEditor'"
        :config="editorConfig"
        :clothingImageUrl="clothingImageUrl"
        :clothing-image-opts="{
          imageMode: 'contains', // 设置底图包含在画布内
        }"
        @change-canvas="changeCanvas"
        @canvas-init="canvasInit"
        isFixedErasable
        showFixedLayer
      >
        <template #existsImageList>
          <ExistsImageList :list="imageData" @select="handleImageSelect" />
        </template>

        <!-- 使用插槽添加自定义工具栏按钮 -->
        <template #customTools="{ toolButtonProps }">
          <!-- 分隔线 -->
          <div class="tool-separator"></div>

          <!-- 自定义工具按钮 -->
          <ToolButton
            v-for="tool in customToolsList"
            :key="tool.id"
            :tool="tool"
            :active-tool="toolButtonProps.activeTool"
            @click="handleCustomToolClick"
          />

          <!-- 也可以直接使用普通的按钮 -->
          <div class="custom-tool-btn" @click="loadImageUrlToLayer">
            <span>🎨</span>
            <div class="tool-tooltip">添加画布图片</div>
          </div>

          <div class="custom-tool-btn" @click="switchView('redGreenExample')">
            <span>红</span>
            <div class="tool-tooltip">红绿图模式</div>
          </div>
          <div class="custom-tool-btn" @click="switchView('canvasEditor')">
            <span>普</span>
            <div class="tool-tooltip">普通模式</div>
          </div>
          <div class="custom-tool-btn" @click="changeFixedImage">
            <span>更</span>
            <div class="tool-tooltip">更换底图</div>
          </div>
        </template>
      </CanvasEditor>
    </div>
  </div>
</template>

<style scoped lang="less">
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.canvas-wrapper-btns {
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  gap: 10px;
}
html,
body {
  height: 100%;
  overflow: hidden;
}

.app-container {
  height: 100%;
  //   height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-container-example {
  height: 100vh;
  display: flex;
  flex-direction: row;
}

.app-wrapper-btns {
  position: relative;
  width: 200px;
  height: 100vh;
  background: #f8f9fa;
  z-index: 1000;
  transition: all 0.3s ease;
  &.app-btn {
    cursor: pointer;
  }
  &.hide {
    width: 20px;
  }
}

.view-switcher {
  display: flex;
  gap: 8px;

  .switch-btn {
    padding: 8px 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: white;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;

    &:hover {
      border-color: #007bff;
      background: #f8f9fa;
    }

    &.active {
      border-color: #007bff;
      background: #007bff;
      color: white;
    }
  }
}

.app-header {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  padding: 8px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
}

.app-content {
  position: relative;
  flex: 1;
  height: 100vh;
}

/* 自定义工具按钮样式 */
.tool-separator {
  width: 100%;
  height: 1px;
  background-color: #e0e0e0;
  margin: 8px 0;
}

.custom-tool-btn {
  position: relative;
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1.6rem;
  color: #333;
  transition: all 0.2s ease;
}

.custom-tool-btn:hover {
  background-color: #f0f0f0;
}

.custom-tool-btn:hover .tool-tooltip {
  display: block;
}

.tool-tooltip {
  display: none;
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 0.4rem 0.8rem;
  border-radius: 0.4rem;
  margin-left: 0.8rem;
  white-space: nowrap;
  font-size: 1.2rem;
  z-index: 10;
}

.tool-tooltip:before {
  content: "";
  position: absolute;
  top: 50%;
  right: 100%;
  margin-top: -0.5rem;
  border-width: 0.5rem;
  border-style: solid;
  border-color: transparent rgba(0, 0, 0, 0.7) transparent transparent;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
  .app-header {
    background: rgba(45, 45, 45, 0.95);

    .view-switcher .switch-btn {
      background: #3d3d3d;
      border-color: #555;
      color: #e0e0e0;

      &:hover {
        border-color: #007bff;
        background: #444;
      }

      &.active {
        background: #007bff;
        color: white;
      }
    }
  }
}
</style>