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| <template>
| <div class="three-home" ref="threeHome" :style="baseStyle">
| <div class="three-home-content" v-if="showSlot">
| <div class="tree-home-slot-wrapper">
| <slot></slot>
| </div>
| </div>
| </div>
| </template>
|
| <script>
| export default {
| name: "ThreeHome",
| props: {
| bg: {
| type: String,
| default: "1.png"
| },
| activeArea: {
| type: Array,
| default() {
| return []
| },
| }
| },
| data() {
| return {
| canvas: "",
| context: "",
| width: 0,
| height: 0,
| showSlot: true
| }
| },
| watch: {
| bg(){
| this.changeBg();
| }
| },
| methods: {
| init() {
| // 初始化canvas
| this.canvas = document.createElement('canvas');
| this.$refs.threeHome.appendChild(this.canvas);
| this.context = this.canvas.getContext("2d");
| this.initBg();
| // 对点击事件做响应
| this.$refs.threeHome.addEventListener('click', (e)=>{
| let point = {
| x: e.offsetX,
| y: e.offsetY
| };
| // 处理点击事件
| this.handleClick(point);
| });
| },
| initBg() {
| try {
| let baseUrl= window.location.origin+"/fg_photo_3DStation/";
| if(process.env.NODE_ENV == 'dev') {
| baseUrl = "http://192.168.10.79:8919/fg_photo_3DStation/"
| }
| const imageSrc = baseUrl+this.bg;
| const image = new Image();
| image.src=imageSrc;
| image.onload = (()=>{
| this.canvas.width = image.width;
| this.canvas.height = image.height;
| this.width = image.width;
| this.height = image.height;
| this.context.drawImage(image, 0, 0, image.width, image.height);
| this.showSlot = false;
| this.$emit('loadSuccess', {
| width: image.width,
| height: image.height
| });
| this.$nextTick(()=>{
| this.showSlot = true;
| });
| });
| }catch (e) {
| console.log(e);
| }
|
| },
| changeBg() {
| // 清除背景
| this.context.clearRect(0, 0, this.width, this.height);
| // 初始化背景
| this.$nextTick(()=>{
| this.initBg();
| });
| },
| handleClick(point) {
| let activeArea = this.activeArea;
| let isActiveClick = false; // 标识是否点击到响应点
| let tmp = {};
| for(let i=0; i<activeArea.length; i++) {
| let item = activeArea[i];
| let width = point.x-item.positionX;
| let height = point.y-item.positionY;
| if(0<= width && width <= item.length && 0<= height && height <= item.width) {
| isActiveClick = true;
| tmp = item;
| tmp.clickPoint = point;
| break;
| }
| }
| // 向伏击响应点击事件，并返回激活点的信息
| if(isActiveClick) {
| this.$emit("handleClick", tmp);
| }
| },
| },
| computed: {
| baseStyle() {
| return {
| width: this.width+'px',
| height: this.height+'px'
| };
| }
| },
| mounted() {
| this.init();
| }
| }
| </script>
|
| <style scoped>
|
| </style>
|
|
