121 lines
2.7 KiB
Vue
121 lines
2.7 KiB
Vue
<template>
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<div class="tb-booth"
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@mouseover="onMouseOver"
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@mouseout="onMouseOut"
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@mousemove="onMouseMove"
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ref="boothRef"
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:style="option"
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>
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<img :src=modelValue />
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<div class="mask" ref="mask" v-show="state.boxShow" />
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<div class="big-img_box" ref="bigImgBox" v-show="state.boxShow">
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<img class="big-img" ref="bigImg"
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:src=modelValue />
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</div>
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</div>
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</template>
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<script setup>
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const props = defineProps({
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modelValue: {
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type: Object,
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default(v) {
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return v;
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}
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},
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option: {
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type: Object,
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default: null
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}
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});
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const boothRef = ref(null);
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const mask = ref(null);
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const bigImg = ref(null);
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const bigImgBox = ref(null);
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const state = reactive({
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boxShow: false
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});
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const onMouseOver = () => {
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state.boxShow = true;
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};
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const onMouseOut = () => {
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state.boxShow = false;
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};
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const onMouseMove = (e) => {
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let x = e.pageX - boothRef.value.offsetLeft;
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let y = e.pageY - boothRef.value.offsetTop;
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let maskX = x - mask.value.offsetWidth / 2;
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let maskY = y - mask.value.offsetHeight / 2;
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// mask的x最大移动距离
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let maskXMaxMove = boothRef.value.offsetWidth - mask.value.offsetWidth;
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let maskYMaxMove = boothRef.value.offsetHeight - mask.value.offsetHeight;
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let bigImgXMaxMove =
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bigImgBox.value.offsetWidth - bigImg.value.offsetWidth;
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let bigImgYMaxMove =
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bigImgBox.value.offsetHeight - bigImg.value.offsetHeight;
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if (maskX <= 0) {
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maskX = 0;
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} else if (maskX >= maskXMaxMove) {
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maskX = maskXMaxMove;
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}
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if (maskY <= 0) {
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maskY = 0;
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} else if (maskY >= maskYMaxMove) {
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maskY = maskYMaxMove;
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}
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mask.value.style.left = maskX + "px";
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mask.value.style.top = maskY + "px";
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// 大图片移动距离 = mask的移动距离*大盒子最大移动距离 / mask的x最大移动距离
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let bixImgXMove = (maskX * bigImgXMaxMove) / maskXMaxMove;
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let bixImgYMove = (maskY * bigImgYMaxMove) / maskYMaxMove;
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bigImg.value.style.left = bixImgXMove + "px";
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bigImg.value.style.top = bixImgYMove + "px";
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};
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</script>
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<style lang="scss" scoped>
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.tb-booth {
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width: 100%;
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height: 100%;
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position: relative;
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border: 1px solid #cccccc;
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}
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.mask {
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position: absolute;
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top: 0;
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left: 0;
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width: 200px;
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height: 200px;
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background-color: rgb(61, 110, 206);
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opacity: 0.5;
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cursor: move;
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}
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.big-img_box {
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position: absolute;
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top: 0;
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left: 530px;
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width: 500px;
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height: 500px;
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background-color: #fff;
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border: 1px solid #cccccc;
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overflow: hidden;
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}
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.big-img {
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position: absolute;
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left: 0;
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top: 0;
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z-index: 99;
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}
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</style> |