frontend
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Sakurasan
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<template>
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<!-- 组件根元素：相对定位，设置最大宽度、外边距、宽高比、背景渐变、内边距、圆角、阴影和溢出隐藏 -->
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<div
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class="relative w-full max-w-4xl mx-auto my-10 aspect-[4/3] backdrop-blur-0 px-4 py-0 my-0 rounded-lg overflow-hidden ">
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<!-- bg-gradient-to-br from-slate-50 to-orange-50 -->
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<!-- 中心图标容器 -->
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<div ref="centerElement" class="absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 z-20">
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<!-- 中心图标本身 -->
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<div class="w-10 h-10 md:w-16 md:h-16 rounded-full flex items-center justify-center backdrop-blur-md animate-bounce hover:cursor-alias" @click="$router.push('/dashboard')">
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<img src="../assets/logo.svg" alt="Center Logo" class="rounded-full object-cover">
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</div>
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</div>
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<!-- 左侧图标列 -->
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<div
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class="absolute top-0 left-0 h-full flex flex-col justify-around items-center py-4 md:py-8 px-2 md:px-4 z-10">
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<!-- 遍历左侧图标数据 -->
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<div v-for="icon in leftIcons" :key="icon.id" :ref="el => { if (el) iconRefs[icon.id] = el }"
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class="w-8 h-8 md:w-10 md:h-10 lg:w-12 lg:h-12 flex items-center justify-center">
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<img v-if="icon.img" :src="icon.img" :alt="icon.name" class="w-full h-full object-contain">
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<div v-else
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class="w-full h-full rounded bg-gray-300 flex items-center justify-center text-xs text-gray-600">?
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</div>
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</div>
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</div>
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<!-- 右侧图标列 -->
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<div
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class="absolute top-0 right-0 h-full flex flex-col justify-around items-center py-4 md:py-8 px-2 md:px-4 z-10">
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<!-- 遍历右侧图标数据 -->
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<div v-for="icon in rightIcons" :key="icon.id" :ref="el => { if (el) iconRefs[icon.id] = el }"
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class="w-8 h-8 md:w-10 md:h-10 lg:w-12 lg:h-12 flex items-center justify-center">
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<img v-if="icon.img" :src="icon.img" :alt="icon.name" class="w-full h-full object-contain">
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<div v-else
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class="w-full h-full rounded bg-gray-300 flex items-center justify-center text-xs text-gray-600">?
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</div>
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</div>
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</div>
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<!-- SVG 画布，用于绘制线条和动画 -->
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<svg class="absolute inset-0 w-full h-full z-0" ref="svgCanvas">
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<defs>
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<!-- 这里可以定义 SVG 渐变或标记 (marker) -->
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</defs>
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<!-- 只有当中心点和图标坐标都计算好后才开始绘制 -->
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<g v-if="centerCoords && Object.keys(iconCoords).length >= (leftIcons.length + rightIcons.length)">
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<!-- 绘制左侧图标的线条和动画 -->
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<template v-for="icon in leftIcons" :key="'group-left-' + icon.id">
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<!-- 1. 绘制静态背景连接线 (图标到中心) -->
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<path :id="'path-visual-left-' + icon.id"
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:d="calculatePathForVisual(iconCoords[icon.id], centerCoords, 'left')" stroke="#E5E7EB"
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stroke-width="1" fill="none" />
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<!-- 2. 绘制用于动画的、覆盖在背景线上的短线段 -->
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<path :id="'path-anim-left-' + icon.id"
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:d="calculatePathForVisual(iconCoords[icon.id], centerCoords, 'left')"
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:stroke="icon.color || '#DB2777'" stroke-width="2.5" fill="none" stroke-linecap="round"
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:stroke-dasharray="`${dashLen} ${largeGap}`" :stroke-dashoffset="largeGap + dashLen">
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<!-- 定义动画：改变 stroke-dashoffset 使短线段移动 -->
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<animate attributeName="stroke-dashoffset" :from="largeGap + dashLen" :to="0"
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:dur="`${4 + Math.random() * 4}s`" :begin="`${Math.random() * -5}s`"
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repeatCount="indefinite" fill="freeze" />
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<!-- keyTimes 和 values 可以更精细控制，但这里 from/to 足够 -->
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</path>
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</template>
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<!-- 绘制右侧图标的线条和动画 -->
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<template v-for="icon in rightIcons" :key="'group-right-' + icon.id">
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<!-- 1. 绘制静态背景连接线 (图标到中心) -->
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<path :id="'path-visual-right-' + icon.id"
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:d="calculatePathForAnimation(iconCoords[icon.id], centerCoords, 'right')" stroke="#E5E7EB"
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stroke-width="1" fill="none" />
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<!-- 2. 绘制用于动画的、覆盖在背景线上的短线段 -->
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<path :id="'path-anim-right-' + icon.id"
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:d="calculatePathForAnimation(iconCoords[icon.id], centerCoords, 'right', 'fromCenter')"
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:stroke="icon.color || '#1D4ED8'" stroke-width="2.5" fill="none" stroke-linecap="round"
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:stroke-dasharray="`${dashLen} ${largeGap}`" :stroke-dashoffset="0">
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<!-- 定义动画：改变 stroke-dashoffset 使短线段移动 -->
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<!-- 注意：路径本身是从 Icon 到 Center 绘制的。为了让动画看起来是从 Center 到 Icon， -->
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<!-- 我们需要让 dashoffset 从 0 (在Icon处开始) 变为 负的pattern长度 (移动到Center处结束) -->
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<animate attributeName="stroke-dashoffset" :from="0" :to="-(largeGap + dashLen)"
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:dur="`${4 + Math.random() * 4}s`" :begin="`${Math.random() * -5}s`"
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repeatCount="indefinite" fill="freeze" />
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</path>
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</template>
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</g>
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</svg>
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</div>
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</template>
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<script setup>
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import { ref, onMounted, onUnmounted, nextTick, reactive, computed } from 'vue'; // 引入 computed
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// --- 图标数据 (保持不变) ---
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const leftIcons = ref([
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{ id: 'web', name: 'Web', img: 'https://img.icons8.com/?size=100&id=38536&format=png&color=000000', color: '#DB4437' },
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{ id: 'iphone', name: 'iPhone', img: 'https://img.icons8.com/?size=100&id=ZwGNoFXGbt9n&format=png&color=000000', color: '#eac50c' },
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{ id: 'mac', name: 'Mac', img: 'https://img.icons8.com/?size=100&id=RHxDgbKmJhUD&format=png&color=000000', color: '#1DB954' },
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]);
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const rightIcons = ref([
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{ id: 'openai', name: 'OpenAI', img: 'https://img.icons8.com/?size=100&id=FBO05Dys9QCg&format=png&color=000000', color: '#E4405F' },
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{ id: 'claude', name: 'Claude', img: 'https://img.icons8.com/?size=100&id=H5H0mqCCr5AV&format=png&color=000000', color: '#229ED9' },
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{ id: 'gemini', name: 'Gemini', img: 'https://img.icons8.com/?size=100&id=eoxMN35Z6JKg&format=png&color=000000', color: '#FF6600' },
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{ id: 'azure', name: 'Azure', img: 'https://img.icons8.com/?size=100&id=VLKafOkk3sBX&format=png&color=000000', color: '#007FFF' },
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{ id: 'bedrock', name: 'BedRock', img: 'https://img.icons8.com/?size=100&id=saSupsgVcmJe&format=png&color=000000', color: '#FF9900' },
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{ id: 'google', name: 'Google', img: 'https://img.icons8.com/color/48/google-logo.png', color: '#DB4437' },
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{ id: 'deepseek', name: 'DeepSeek', img: 'https://img.icons8.com/?size=100&id=YWOidjGxCpFW&format=png&color=000000', color: '#4CAF50' },
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{ id: 'github', name: 'GitHub', img: 'https://img.icons8.com/ios-filled/50/000000/github.png', color: '#333' },
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]);
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// --- 结束图标数据 ---
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// --- Dash 动画参数 ---
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const dashLen = ref(15); // 移动线段的长度
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const largeGap = ref(1000); // 一个足够大的间隔，确保只有一个线段可见
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// --- 结束 Dash 动画参数 ---
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const svgCanvas = ref(null);
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const centerElement = ref(null);
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const iconRefs = reactive({});
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const centerCoords = ref(null);
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const iconCoords = reactive({});
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// (getElementCenterCoords 和 updateCoordinates 函数保持不变)
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const getElementCenterCoords = (element) => {
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if (!element || !svgCanvas.value) return null;
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const svgRect = svgCanvas.value.getBoundingClientRect();
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const elemRect = element.getBoundingClientRect();
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return {
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x: elemRect.left + elemRect.width / 2 - svgRect.left,
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y: elemRect.top + elemRect.height / 2 - svgRect.top,
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};
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};
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const updateCoordinates = () => {
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if (!centerElement.value || !svgCanvas.value) return;
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centerCoords.value = getElementCenterCoords(centerElement.value);
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const allIcons = [...leftIcons.value, ...rightIcons.value];
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let coordsFound = 0;
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allIcons.forEach(icon => {
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const element = iconRefs[icon.id];
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if (element) {
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iconCoords[icon.id] = getElementCenterCoords(element);
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if (iconCoords[icon.id]) {
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coordsFound++;
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}
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} else {
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console.warn(`找不到图标 ${icon.id} 的 DOM 元素引用。`);
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}
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});
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// if (coordsFound < allIcons.length) { // 可选的调试信息
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// console.warn("部分图标坐标未能成功计算。");
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// }
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};
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// (calculatePathForVisual 函数保持不变，我们不再需要 calculatePathForAnimation)
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/**
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* 计算静态视觉连接线的 SVG 路径 (总是从图标到中心)
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* @param {object} iconCoord 图标坐标 {x, y}
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* @param {object} centerCoord 中心坐标 {x, y}
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* @param {'left' | 'right'} side 图标在哪一侧
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* @returns {string} SVG path 'd' 属性字符串
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*/
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const calculatePathForVisual = (iconCoord, centerCoord, side) => {
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if (!iconCoord || !centerCoord) return '';
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const { x: startX, y: startY } = iconCoord;
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const { x: endX, y: endY } = centerCoord;
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const controlX = (side === 'left')
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? startX + (endX - startX) * 0.6
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: startX - (startX - endX) * 0.6;
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const controlY = startY;
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return `M ${startX},${startY} Q ${controlX},${controlY} ${endX},${endY}`;
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};
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/**
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* 计算动画运动的 SVG 路径
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* @param {object} iconCoord 图标坐标 {x, y}
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* @param {object} centerCoord 中心坐标 {x, y}
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* @param {'left' | 'right'} side 图标在哪一侧
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* @param {'toCenter' | 'fromCenter'} direction 动画方向
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* @returns {string} SVG path 'd' 属性字符串
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*/
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const calculatePathForAnimation = (iconCoord, centerCoord, side, direction) => {
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if (!iconCoord || !centerCoord) return '';
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let startX, startY, endX, endY;
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let controlX, controlY;
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if (direction === 'fromCenter') {
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// --- 动画从中心开始 ---
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startX = centerCoord.x;
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startY = centerCoord.y;
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endX = iconCoord.x;
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endY = iconCoord.y;
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// 控制点计算:
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// 为了使曲线形状看起来与 'toCenter' 类似但方向相反
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// 我们将控制点放在靠近中心（起点）的位置，并使其 Y 坐标与终点（图标）对齐
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controlX = startX + (endX - startX) * 0.4; // X 轴方向上，控制点靠近起点 (中心)
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controlY = endY; // Y 轴方向上，与终点 (图标) 对齐
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} else { // direction === 'toCenter' (默认)
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// --- 动画从图标开始 ---
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startX = iconCoord.x;
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startY = iconCoord.y;
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endX = centerCoord.x;
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endY = centerCoord.y;
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// 控制点计算 (与视觉线一致)
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controlX = (side === 'left')
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? startX + (endX - startX) * 0.6
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: startX - (startX - endX) * 0.6;
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controlY = startY; // Y 轴方向上，与起点 (图标) 对齐
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}
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return `M ${startX},${startY} Q ${controlX},${controlY} ${endX},${endY}`;
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};
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// --- 生命周期钩子 (保持不变) ---
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let resizeObserver;
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onMounted(async () => {
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await nextTick();
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updateCoordinates();
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resizeObserver = new ResizeObserver(updateCoordinates);
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if (svgCanvas.value?.parentElement) {
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resizeObserver.observe(svgCanvas.value.parentElement);
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} else {
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console.warn("无法找到用于 ResizeObserver 的父元素。");
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}
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});
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onUnmounted(() => {
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if (resizeObserver) {
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resizeObserver.disconnect();
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}
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});
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</script>
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<style scoped>
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img {
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max-width: 100%;
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max-height: 100%;
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object-fit: contain;
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/* Prevent text/image selection */
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user-select: none;
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/* Standard */
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-webkit-user-select: none;
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/* Safari, Chrome, Opera */
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-moz-user-select: none;
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/* Firefox */
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-ms-user-select: none;
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/* IE/Edge */
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/* Prevent dragging ghost image (optional but helpful) */
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-webkit-user-drag: none;
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user-drag: none;
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/* Maybe needed for some browsers */
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pointer-events: none;
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/* Also prevents clicks/hovers directly on the img if needed */
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}
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.flex-col.justify-around {
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justify-content: space-around;
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}
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/* 可选：给动画路径添加一点模糊效果？ */
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#path-anim-left,
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#path-anim-right {
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filter: blur(2px);
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background-color: #eac50c;
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}
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</style>
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