378 lines
8.8 KiB
Vue
378 lines
8.8 KiB
Vue
<template>
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<div class="map-detail">
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<div class="map-header">
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<h1>地形图列表</h1>
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<div class="filter-controls">
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<label for="category-select">分类：</label>
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<select v-model="selectedCategory" id="category-select" @change="currentPage = 1">
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<option v-for="category in categoryList" :key="category" :value="category">
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{{ category }}
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</option>
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</select>
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</div>
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</div>
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<div class="pagination-controls">
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<button class="pagination-btn" @click="prevPage" :disabled="currentPage === 1">
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< 上一页
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</button>
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<span class="page-info">第 {{ currentPage }} 页 / 共 {{ totalPages }} 页</span>
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<button class="pagination-btn" @click="nextPage" :disabled="currentPage === totalPages">
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下一页 >
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</button>
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</div>
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<div v-if="loading" class="loading">加载中...</div>
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<div v-if="error" class="error">
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加载失败: {{ error }}
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<button @click="fetchTerrainList" class="back-btn">重试</button>
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</div>
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<div class="map-content">
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<div v-if="filteredTerrainsByCategory.length > 0" class="terrain-grid">
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<div v-for="terrain in paginatedTerrains" :key="terrain.key" class="terrain-item">
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<div class="map-image">
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<img :src="getImageUrl(terrain.key)" :alt="'地形图 ' + terrain.key" />
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<div class="image-overlay">
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<span class="image-name">{{ terrain.key }}</span>
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<a :href="getImageUrl(terrain.key)" class="download-link" download title="下载">
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<svg viewBox="0 0 24 24" width="20" height="20">
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<path fill="white" d="M5,20H19V18H5M19,9H15V3H9V9H5L12,16L19,9Z" />
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</svg>
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</a>
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</div>
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</div>
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</div>
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</div>
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<div v-else-if="!loading" class="no-data">
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当前分类下没有可用的地形图数据
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</div>
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</div>
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<div class="pagination-controls bottom">
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<button class="pagination-btn" @click="prevPage" :disabled="currentPage === 1">
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< 上一页
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</button>
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<span class="page-info">第 {{ currentPage }} 页 / 共 {{ totalPages }} 页</span>
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<button class="pagination-btn" @click="nextPage" :disabled="currentPage === totalPages">
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下一页 >
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</button>
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</div>
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</div>
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</template>
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<script>
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export default {
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name: 'TerrainList',
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data() {
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return {
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terrains: [],
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filteredTerrains: [],
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loading: false,
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error: null,
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currentPage: 1,
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itemsPerPage: 100,
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apiBaseUrl: 'http://zybdatasupport.online:8000',
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categoryList: [],
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selectedCategory: '全部',
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};
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},
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computed: {
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filteredTerrainsByCategory() {
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if (this.selectedCategory === '全部') {
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return this.filteredTerrains;
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}
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return this.filteredTerrains.filter(item =>
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item.key.toLowerCase().startsWith(this.selectedCategory + '_')
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);
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},
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totalPages() {
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return Math.ceil(this.filteredTerrainsByCategory.length / this.itemsPerPage);
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},
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paginatedTerrains() {
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const start = (this.currentPage - 1) * this.itemsPerPage;
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const end = start + this.itemsPerPage;
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return this.filteredTerrainsByCategory.slice(start, end);
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},
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},
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created() {
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this.fetchTerrainList();
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},
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methods: {
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async fetchTerrainList() {
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this.loading = true;
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this.error = null;
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try {
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const response = await fetch(`${this.apiBaseUrl}/terrain`);
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if (!response.ok) {
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throw new Error('获取地形图列表失败');
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}
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const data = await response.json();
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this.terrains = data;
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this.filteredTerrains = data.filter(item => this.isImageFile(item.key));
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this.extractCategories();
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this.currentPage = 1;
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} catch (err) {
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this.error = err.message;
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console.error('Error fetching terrain list:', err);
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} finally {
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this.loading = false;
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}
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},
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extractCategories() {
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const categories = new Set();
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this.filteredTerrains.forEach(item => {
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const prefix = item.key.split('_')[0].toLowerCase();
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categories.add(prefix);
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});
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this.categoryList = ['全部', ...Array.from(categories).sort()];
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},
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getImageUrl(key) {
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return `http://dataimg-1307694021.cos.ap-beijing.myqcloud.com/Terrain/jpg/${key}`;
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},
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isImageFile(key) {
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const imageExtensions = ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.webp'];
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const lowerKey = key.toLowerCase();
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return imageExtensions.some(ext => lowerKey.endsWith(ext));
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},
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nextPage() {
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if (this.currentPage < this.totalPages) {
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this.currentPage++;
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}
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},
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prevPage() {
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if (this.currentPage > 1) {
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this.currentPage--;
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}
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}
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}
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};
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</script>
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<style scoped>
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.map-detail {
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padding: 15px;
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max-width: 1800px;
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margin: 0 auto;
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}
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.map-header {
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margin-bottom: 20px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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flex-wrap: wrap;
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}
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.map-header h1 {
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margin: 0;
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color: #333;
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font-size: 1.5rem;
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}
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.filter-controls {
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display: flex;
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align-items: center;
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gap: 8px;
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}
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select {
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padding: 6px 10px;
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border: 1px solid #ccc;
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border-radius: 4px;
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font-size: 14px;
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}
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.loading, .error, .no-data {
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padding: 15px;
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text-align: center;
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margin: 20px 0;
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}
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.error {
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color: #d32f2f;
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background-color: #ffebee;
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}
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.no-data {
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color: #757575;
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}
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.terrain-grid {
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display: grid;
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grid-template-columns: repeat(10, 1fr);
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gap: 10px;
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}
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.terrain-item {
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position: relative;
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border-radius: 4px;
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overflow: hidden;
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aspect-ratio: 1;
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transition: transform 0.2s;
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}
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.terrain-item:hover {
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transform: scale(1.03);
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z-index: 1;
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}
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.map-image {
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position: relative;
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width: 100%;
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height: 100%;
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}
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.map-image img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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border-radius: 4px;
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box-shadow: 0 2px 5px rgba(0,0,0,0.1);
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}
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.image-overlay {
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position: absolute;
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bottom: 0;
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left: 0;
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right: 0;
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background: linear-gradient(transparent, rgba(0,0,0,0.7));
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padding: 8px;
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color: white;
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display: flex;
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justify-content: space-between;
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align-items: center;
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opacity: 0;
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transition: opacity 0.2s;
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}
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.terrain-item:hover .image-overlay {
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opacity: 1;
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}
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.image-name {
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font-size: 0.7rem;
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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max-width: 80%;
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}
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.download-link {
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color: white;
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display: flex;
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align-items: center;
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justify-content: center;
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width: 20px;
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height: 20px;
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}
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.download-link:hover {
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color: #4fc3f7;
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}
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.pagination-controls {
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display: flex;
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justify-content: center;
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align-items: center;
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gap: 20px;
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margin: 20px 0;
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}
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.pagination-controls.bottom {
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margin-top: 30px;
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}
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.pagination-btn {
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padding: 8px 16px;
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background: #f8f9fa;
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border: 1px solid #e0e0e0;
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border-radius: 4px;
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cursor: pointer;
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transition: all 0.2s;
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}
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.pagination-btn:hover:not(:disabled) {
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background: #e9ecef;
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border-color: #d0d0d0;
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}
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.pagination-btn:disabled {
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opacity: 0.5;
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cursor: not-allowed;
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}
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.page-info {
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font-size: 0.9rem;
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color: #666;
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}
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.back-btn {
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display: inline-flex;
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align-items: center;
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padding: 8px 12px;
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background: #f8f9fa;
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border: 1px solid #e0e0e0;
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border-radius: 6px;
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color: #333;
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cursor: pointer;
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transition: all 0.2s ease;
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font-size: 14px;
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margin-left: 10px;
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}
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.back-btn:hover {
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background: #e9ecef;
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border-color: #d0d0d0;
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}
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@media (max-width: 1800px) {
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.terrain-grid {
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grid-template-columns: repeat(8, 1fr);
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}
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}
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@media (max-width: 1400px) {
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.terrain-grid {
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grid-template-columns: repeat(6, 1fr);
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}
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}
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@media (max-width: 1000px) {
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.terrain-grid {
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grid-template-columns: repeat(4, 1fr);
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}
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}
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@media (max-width: 700px) {
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.terrain-grid {
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grid-template-columns: repeat(3, 1fr);
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}
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.map-header {
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flex-direction: column;
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align-items: flex-start;
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gap: 10px;
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}
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}
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@media (max-width: 500px) {
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.terrain-grid {
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grid-template-columns: repeat(2, 1fr);
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}
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.pagination-controls {
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flex-direction: column;
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gap: 10px;
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}
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}
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</style>
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