457 lines
11 KiB
Plaintext
457 lines
11 KiB
Plaintext
/* eslint-disable no-unused-vars */
|
|
<template>
|
|
<div style="width:100%;height:100%;">
|
|
<transition name="viewer-fade">
|
|
<div v-show="urlList.length > 0" ref="image-viewer__wrapper" tabindex="-1" class="image-viewer__wrapper" :style="{ 'z-index':5 }">
|
|
<span class="image-viewer_desc">
|
|
<!-- <span v-if="studyCode">NST00006</span>
|
|
<span v-if="modality">CT</span>
|
|
<span v-if="bodyPart">上/下腹部</span><br> -->
|
|
{{ `${index+1} / ${urlList.length}` }}
|
|
</span>
|
|
<!-- 关闭 -->
|
|
<span class="image-viewer__btn image-viewer__close" @click="hide">
|
|
<i class="el-icon-close" />
|
|
</span>
|
|
<!-- Arrow -->
|
|
<template v-if="!isSingle">
|
|
<span
|
|
class="image-viewer__btn image-viewer__prev"
|
|
:class="{ 'is-disabled': !infinite && isFirst }"
|
|
@click="prev"
|
|
>
|
|
<i class="el-icon-arrow-left" />
|
|
</span>
|
|
<span
|
|
class="el-image-viewer__btn el-image-viewer__next"
|
|
:class="{ 'is-disabled': !infinite && isLast }"
|
|
@click="next"
|
|
>
|
|
<i class="el-icon-arrow-right" />
|
|
</span>
|
|
</template>
|
|
<!-- 工具栏 -->
|
|
<div class="image-viewer__btn image-viewer__actions">
|
|
<div class="image-viewer__actions__inner">
|
|
<i class="el-icon-zoom-out" @click="handleActions('zoomOut')" />
|
|
<i class="el-icon-zoom-in" @click="handleActions('zoomIn')" />
|
|
<i class="el-image-viewer__actions__divider" />
|
|
<i class="el-icon-c-scale-to-original" @click="toggleMode" />
|
|
<i class="el-image-viewer__actions__divider" />
|
|
<i class="el-icon-refresh-left" @click="handleActions('anticlocelise')" />
|
|
<i class="el-icon-refresh-right" @click="handleActions('clocelise')" />
|
|
</div>
|
|
</div>
|
|
<!-- 图片 -->
|
|
<div id="image-viewer__canvas" class="image-viewer__canvas">
|
|
<img
|
|
v-for="(item, i) in urlList"
|
|
v-show="i === index"
|
|
:ref="`img${i}`"
|
|
:key="item.Id"
|
|
crossorigin="anonymous"
|
|
:src="`${OSSclientConfig.basePath}${item.FullFilePath}`"
|
|
:style="imgStyle"
|
|
style="max-width:100%;max-height: 100%;"
|
|
@load="handleImgLoad"
|
|
@error="handleImgError"
|
|
@mousedown="handleMouseDown"
|
|
>
|
|
|
|
</div>
|
|
</div>
|
|
</transition>
|
|
|
|
</div>
|
|
|
|
</template>
|
|
|
|
<script>
|
|
import { on, off } from 'element-ui/src/utils/dom'
|
|
import { rafThrottle, isFirefox } from 'element-ui/src/utils/util'
|
|
|
|
const mousewheelEventName = isFirefox() ? 'DOMMouseScroll' : 'mousewheel'
|
|
|
|
export default {
|
|
name: 'ImageViewer',
|
|
props: {
|
|
urlList: {
|
|
type: Array,
|
|
default: () => []
|
|
},
|
|
studyCode: {
|
|
type: String,
|
|
default: ''
|
|
},
|
|
bodyPart: {
|
|
type: String,
|
|
default: ''
|
|
},
|
|
modality: {
|
|
type: String,
|
|
default: ''
|
|
},
|
|
onSwitch: {
|
|
type: Function,
|
|
default: () => {}
|
|
},
|
|
onClose: {
|
|
type: Function,
|
|
default: () => {}
|
|
},
|
|
initialIndex: {
|
|
type: Number,
|
|
default: 0
|
|
}
|
|
},
|
|
|
|
data() {
|
|
return {
|
|
index: this.initialIndex,
|
|
isShow: false,
|
|
infinite: true,
|
|
loading: false,
|
|
transform: {
|
|
scale: 1,
|
|
deg: 0,
|
|
offsetX: 0,
|
|
offsetY: 0,
|
|
enableTransition: false
|
|
}
|
|
}
|
|
},
|
|
computed: {
|
|
isSingle() {
|
|
return this.urlList.length <= 1
|
|
},
|
|
isFirst() {
|
|
return this.index === 0
|
|
},
|
|
isLast() {
|
|
return this.index === this.urlList.length - 1
|
|
},
|
|
|
|
imgStyle() {
|
|
const { scale, deg, offsetX, offsetY, enableTransition } = this.transform
|
|
const style = {
|
|
transform: `scale(${scale}) rotate(${deg}deg)`,
|
|
transition: enableTransition ? 'transform .3s' : '',
|
|
'margin-left': `${offsetX}px`,
|
|
'margin-top': `${offsetY}px`
|
|
}
|
|
return style
|
|
}
|
|
},
|
|
watch: {
|
|
initialIndex: {
|
|
immediate: true,
|
|
handler(val) {
|
|
this.index = val
|
|
}
|
|
},
|
|
index: {
|
|
immediate: true,
|
|
handler(val) {
|
|
this.reset()
|
|
this.onSwitch(val)
|
|
}
|
|
}
|
|
},
|
|
mounted() {
|
|
document.getElementById('image-viewer__canvas').onmousewheel = (event) => {
|
|
if (event.deltaY > 0) {
|
|
// 缩小
|
|
this.handleActions('zoomOut', {
|
|
zoomRate: 0.015,
|
|
enableTransition: false
|
|
})
|
|
} else {
|
|
// 放大
|
|
this.handleActions('zoomIn', {
|
|
zoomRate: 0.015,
|
|
enableTransition: false
|
|
})
|
|
}
|
|
return false
|
|
}
|
|
this.deviceSupportInstall()
|
|
},
|
|
methods: {
|
|
hide() {
|
|
this.deviceSupportUninstall()
|
|
this.onClose()
|
|
},
|
|
deviceSupportInstall() {
|
|
this._keyDownHandler = e => {
|
|
e.stopPropagation()
|
|
const keyCode = e.keyCode
|
|
switch (keyCode) {
|
|
// ESC
|
|
case 27:
|
|
this.hide()
|
|
break
|
|
// SPACE
|
|
case 32:
|
|
this.toggleMode()
|
|
break
|
|
// LEFT_ARROW
|
|
case 37:
|
|
this.prev()
|
|
break
|
|
// UP_ARROW
|
|
case 38:
|
|
this.handleActions('zoomIn')
|
|
break
|
|
// RIGHT_ARROW
|
|
case 39:
|
|
this.next()
|
|
break
|
|
// DOWN_ARROW
|
|
case 40:
|
|
this.handleActions('zoomOut')
|
|
break
|
|
}
|
|
}
|
|
this._mouseWheelHandler = rafThrottle(e => {
|
|
const delta = e.wheelDelta ? e.wheelDelta : -e.detail
|
|
if (delta > 0) {
|
|
this.handleActions('zoomIn', {
|
|
zoomRate: 0.015,
|
|
enableTransition: false
|
|
})
|
|
} else {
|
|
this.handleActions('zoomOut', {
|
|
zoomRate: 0.015,
|
|
enableTransition: false
|
|
})
|
|
}
|
|
})
|
|
on(document, 'keydown', this._keyDownHandler)
|
|
|
|
on(document, mousewheelEventName, null)
|
|
// on(document, mousewheelEventName, this._mouseWheelHandler)
|
|
},
|
|
deviceSupportUninstall() {
|
|
off(document, 'keydown', this._keyDownHandler)
|
|
off(document, mousewheelEventName, this._mouseWheelHandler)
|
|
this._keyDownHandler = null
|
|
this._mouseWheelHandler = null
|
|
},
|
|
handleImgLoad(e) {
|
|
this.loading = false
|
|
},
|
|
handleImgError(e) {
|
|
this.loading = false
|
|
e.target.alt = '加载失败'
|
|
},
|
|
handleMouseDown(e) {
|
|
if (this.loading || e.button !== 0) return
|
|
|
|
const { offsetX, offsetY } = this.transform
|
|
const startX = e.pageX
|
|
const startY = e.pageY
|
|
this._dragHandler = rafThrottle(ev => {
|
|
this.transform.offsetX = offsetX + ev.pageX - startX
|
|
this.transform.offsetY = offsetY + ev.pageY - startY
|
|
})
|
|
on(document, 'mousemove', this._dragHandler)
|
|
on(document, 'mouseup', ev => {
|
|
off(document, 'mousemove', this._dragHandler)
|
|
})
|
|
|
|
e.preventDefault()
|
|
},
|
|
reset() {
|
|
this.transform = {
|
|
scale: 1,
|
|
deg: 0,
|
|
offsetX: 0,
|
|
offsetY: 0,
|
|
enableTransition: false
|
|
}
|
|
},
|
|
toggleMode() {
|
|
if (this.loading) return
|
|
this.reset()
|
|
},
|
|
prev() {
|
|
if (this.isFirst && !this.infinite) return
|
|
const len = this.urlList.length
|
|
this.index = (this.index - 1 + len) % len
|
|
},
|
|
next() {
|
|
if (this.isLast && !this.infinite) return
|
|
const len = this.urlList.length
|
|
this.index = (this.index + 1) % len
|
|
},
|
|
handleActions(action, options = {}) {
|
|
if (this.loading) return
|
|
const { zoomRate, rotateDeg, enableTransition } = {
|
|
zoomRate: 0.2,
|
|
rotateDeg: 90,
|
|
enableTransition: true,
|
|
...options
|
|
}
|
|
const { transform } = this
|
|
switch (action) {
|
|
case 'zoomOut':
|
|
if (transform.scale > 0.2) {
|
|
transform.scale = parseFloat((transform.scale - zoomRate).toFixed(3))
|
|
}
|
|
break
|
|
case 'zoomIn':
|
|
if (transform.scale < 5) {
|
|
transform.scale = parseFloat((transform.scale + zoomRate).toFixed(3))
|
|
}
|
|
break
|
|
case 'clocelise':
|
|
transform.deg += rotateDeg
|
|
break
|
|
case 'anticlocelise':
|
|
transform.deg -= rotateDeg
|
|
break
|
|
}
|
|
transform.enableTransition = enableTransition
|
|
}
|
|
}
|
|
}
|
|
</script>
|
|
<style lang="scss" scoped>
|
|
|
|
.image-viewer__wrapper{
|
|
position: relative;
|
|
top:0;
|
|
right:0;
|
|
bottom:0;
|
|
left:0;
|
|
width: 100%;
|
|
height: 100%;
|
|
}
|
|
.image-viewer__btn{
|
|
position:absolute;
|
|
z-index:1;
|
|
display:flex;
|
|
align-items:center;
|
|
justify-content:center;
|
|
border-radius:50%;
|
|
opacity:.8;
|
|
cursor:pointer;
|
|
box-sizing:border-box;
|
|
user-select:none
|
|
}
|
|
|
|
.image-viewer__close{
|
|
display: none;
|
|
top:40px;
|
|
right:40px;
|
|
width:40px;
|
|
height:40px;
|
|
font-size:40px
|
|
}
|
|
.image-viewer_desc{
|
|
position:absolute;
|
|
top:40px;
|
|
left:40px;
|
|
font-size:15px;
|
|
padding: 5px;
|
|
height: 30px;
|
|
width: 70px;
|
|
line-height: 20px;
|
|
text-align: center;
|
|
color: #fff;
|
|
background-color: #606266;
|
|
border-color: #fff;
|
|
z-index: 1;
|
|
border-radius: 17px;
|
|
// border-radius: 2%;
|
|
}
|
|
.image-viewer__canvas{
|
|
position: absolute;
|
|
top: 50%;
|
|
transform: translateY(-50%);
|
|
width:100%;
|
|
height:100%;
|
|
display:flex;
|
|
justify-content:center;
|
|
align-items:center
|
|
}
|
|
.image-viewer__actions{
|
|
left:50%;
|
|
bottom:30px;
|
|
transform:translateX(-50%);
|
|
width:282px;
|
|
height:44px;
|
|
padding:0 23px;
|
|
background-color:#606266;
|
|
border-color:#fff;
|
|
border-radius:22px
|
|
}
|
|
.image-viewer__actions__inner{
|
|
width:100%;
|
|
height:100%;
|
|
text-align:justify;
|
|
cursor:default;
|
|
font-size:23px;
|
|
color:#fff;
|
|
display:flex;
|
|
align-items:center;
|
|
justify-content:space-around
|
|
}
|
|
.image-viewer__next,.image-viewer__prev{
|
|
top:50%;
|
|
width:44px;
|
|
height:44px;
|
|
font-size:24px;
|
|
color:#fff;
|
|
background-color:#606266;
|
|
border-color:#fff
|
|
}
|
|
.image-viewer__prev{
|
|
transform:translateY(-50%);
|
|
left:40px
|
|
}
|
|
.image-viewer__next{
|
|
transform:translateY(-50%);
|
|
right:40px;
|
|
text-indent:2px
|
|
}
|
|
.image-viewer__mask{
|
|
position:absolute;
|
|
width:100%;
|
|
height:100%;
|
|
top:0;
|
|
left:0;
|
|
opacity:.5;
|
|
// background:#000
|
|
|
|
}
|
|
.viewer-fade-enter-active{
|
|
animation:viewer-fade-in .3s
|
|
}
|
|
.viewer-fade-leave-active{
|
|
animation:viewer-fade-out .3s
|
|
}
|
|
|
|
@keyframes viewer-fade-in{
|
|
0%{
|
|
transform:translate3d(0,-20px,0);
|
|
opacity:0
|
|
}
|
|
100%{
|
|
transform:translate3d(0,0,0);
|
|
opacity:1
|
|
}
|
|
}
|
|
|
|
@keyframes viewer-fade-out{
|
|
0%{
|
|
transform:translate3d(0,0,0);
|
|
opacity:1
|
|
}
|
|
100%{
|
|
transform:translate3d(0,-20px,0);
|
|
opacity:0
|
|
}
|
|
}
|
|
</style>
|