786 lines
22 KiB
Plaintext
786 lines
22 KiB
Plaintext
<!--图片标记-->
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<template>
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<div v-loading="loading" style="width:100%;height:100%;">
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<transition name="viewer-fade">
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<div v-show="urlList.length > 0" ref="image-viewer__wrapper" tabindex="-1" class="image-viewer__wrapper" :style="{ 'z-index':5 }">
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<span class="image-viewer_desc">
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<!-- <span v-if="studyCode">NST00006</span>
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<span v-if="modality">CT</span>
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<span v-if="bodyPart">上/下腹部</span><br> -->
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{{ `${index+1} / ${urlList.length}` }}
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</span>
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<!-- 关闭 -->
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<span class="image-viewer__btn image-viewer__close" @click="hide">
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<i class="el-icon-close" />
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</span>
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<!-- Arrow -->
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<template v-if="!isSingle">
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<span
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class="image-viewer__btn image-viewer__prev"
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:class="{ 'is-disabled': !infinite && isFirst }"
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@click="prev"
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>
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<i class="el-icon-arrow-left" />
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</span>
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<span
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class="el-image-viewer__btn el-image-viewer__next"
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:class="{ 'is-disabled': !infinite && isLast }"
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@click="next"
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>
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<i class="el-icon-arrow-right" />
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</span>
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</template>
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<!-- 工具栏 -->
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<div class="image-viewer__btn image-viewer__actions">
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<div class="image-viewer__actions__inner">
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<i class="el-icon-zoom-out" @click="handleActions('zoomOut')" />
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<i class="el-icon-zoom-in" @click="handleActions('zoomIn')" />
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<i class="el-image-viewer__actions__divider" />
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<i class="el-icon-c-scale-to-original" @click="toggleMode" />
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<i class="el-image-viewer__actions__divider" />
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<i class="el-icon-refresh-left" @click="handleActions('anticlocelise')" />
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<i class="el-icon-refresh-right" @click="handleActions('clocelise')" />
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<i
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class="el-icon-bottom-right"
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:style="{cursor:isToolDisabled?'not-allowed':'pointer'}"
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@click="handleDrawArrow"
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/>
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</div>
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</div>
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<!-- 图片 -->
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<div id="image-viewer__canvas" class="image-viewer__canvas">
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<canvas
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v-if="canvasSize.width && canvasPosition.y"
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id="canvas"
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:height="canvasSize.height"
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:width="canvasSize.width"
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:style="imgStyle"
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@mousedown="handleMouseDown"
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@mousemove="handleMouseMove"
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@mouseup="handleMouseUp"
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@contextmenu="handleContextmenu"
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/>
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</div>
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</div>
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</transition>
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</div>
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</template>
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<script>
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import { on, off } from 'element-ui/src/utils/dom'
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import { rafThrottle, isFirefox } from 'element-ui/src/utils/util'
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import store from '@/store'
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const mousewheelEventName = isFirefox() ? 'DOMMouseScroll' : 'mousewheel'
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var ctx = '' // 画布上下文
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export default {
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name: 'NoneDicomsCanvas',
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props: {
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urlList: {
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type: Array,
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default: () => []
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},
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studyCode: {
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type: String,
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default: ''
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},
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bodyPart: {
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type: String,
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default: ''
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},
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modality: {
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type: String,
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default: ''
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},
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studyId: {
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type: String,
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default: ''
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},
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onSwitch: {
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type: Function,
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default: () => {}
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},
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onClose: {
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type: Function,
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default: () => {}
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},
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initialIndex: {
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type: Number,
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default: 0
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}
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},
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data() {
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return {
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loading: false,
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index: this.initialIndex,
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isShow: false,
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infinite: true,
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transform: {
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scale: 1,
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deg: 0,
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offsetX: 0,
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offsetY: 0,
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enableTransition: false
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},
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imgUrl: '',
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ctx: null,
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canvasPosition: { x: '', y: '' }, // 画布位置
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canvasSize: { height: '', width: '' }, // 画布尺寸
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canvasMousePosition: { x: '', y: '' }, // 画布中鼠标位置
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mousePosition: { x: '', y: '' }, // 屏幕中鼠标位置
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color: 'rgb(255, 255, 0)',
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lineWidth: 2,
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isMouseDown: false,
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canvasMouseStart: { x: '', y: '' },
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model: '',
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currentImg: '',
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imgId: '',
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currentDrawData: {},
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canvasData: [],
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imgZoom: 1,
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isToolDisabled: false,
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lesionName: '',
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visitTaskId: '',
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isInit: false,
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imgSize: { height: '', width: '' } // 图片原始尺寸
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}
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},
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computed: {
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isSingle() {
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return this.urlList.length <= 1
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},
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isFirst() {
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return this.index === 0
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},
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isLast() {
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return this.index === this.urlList.length - 1
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},
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imgStyle() {
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const { scale, deg, offsetX, offsetY, enableTransition } = this.transform
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const style = {
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transform: `scale(${scale}) rotate(${deg}deg)`,
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transition: enableTransition ? 'transform .3s' : '',
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'margin-left': `${offsetX}px`,
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'margin-top': `${offsetY}px`
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}
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return style
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}
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},
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watch: {
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initialIndex: {
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immediate: true,
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handler(val) {
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this.index = val
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}
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},
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index: {
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immediate: true,
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handler(val) {
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this.reset()
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this.onSwitch(val)
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this.imgUrl = this.urlList[val].Path
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this.imgId = this.urlList[val].Id
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this.loadImage()
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}
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}
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},
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mounted() {
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window.addEventListener('message', this.receiveMsg)
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document.getElementById('image-viewer__canvas').onmousewheel = (event) => {
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if (event.deltaY > 0) {
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// 缩小
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this.handleActions('zoomOut', {
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zoomRate: 0.015,
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enableTransition: false
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})
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} else {
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// 放大
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this.handleActions('zoomIn', {
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zoomRate: 0.015,
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enableTransition: false
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})
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}
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return false
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}
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this.deviceSupportInstall()
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},
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methods: {
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getCanvasData() {
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return new Promise(async resolve => {
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this.visitTaskId = this.$router.currentRoute.query.visitTaskId
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this.canvasData = []
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await store.dispatch('reading/getMeasuredData', this.visitTaskId)
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await store.dispatch('reading/getNoneDicomMeasuredData', this.visitTaskId).then(res => {
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res.forEach(item => {
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this.canvasData.push(item.MeasureData)
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})
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})
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resolve()
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})
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},
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async loadImage() {
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this.loading = true
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if (!this.isInit) {
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await this.getCanvasData()
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this.isInit = true
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}
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const img = new Image() // 创建img标签
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img.src = this.imgUrl // 添加src
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return new Promise(resolve => {
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img.onload = () => {
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this.currentImg = img
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this.loading = false
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this.initCanvas(img)
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resolve(img) // 返回标签
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}
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})
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},
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handleDrawArrow() {
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var data = { type: 'isCanActiveNoneDicomTool', data: '' }
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window.opener.postMessage(data, window.location)
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// this.model = 'ArrowAnnotate'
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},
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async receiveMsg(event) {
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if (event.data.type === 'isCanActiveNoneDicomTool') {
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if (event.data.data.isCanActiveTool) {
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this.model = 'ArrowAnnotate'
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this.lesionName = event.data.data.lesionName
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}
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} else if (event.data.type === 'removeNoneDicomMeasureData') {
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var idx = this.canvasData.findIndex(item => item.data.uuid === event.data.data.data.uuid)
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if (idx > -1) {
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this.canvasData.splice(idx, 1)
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ctx.clearRect(0, 0, this.canvasSize.width, this.canvasSize.height) // 清除画布后立刻重新绘制视觉上形成动画
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await ctx.drawImage(
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this.currentImg,
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0,
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0,
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this.canvasSize.width,
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this.canvasSize.height
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)
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this.drawToArr() // 重绘列表数据
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this.isMouseDown = false // 关闭鼠标状态
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this.model = ''
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this.lesionName = ''
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}
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}
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},
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// 初始化画布
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initCanvas(img) {
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this.loading = true
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this.canvasSize.height = img.height
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this.canvasSize.width = img.width
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this.imgSize.height = img.height
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this.imgSize.width = img.width
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const canvasDiv = document.getElementsByClassName('image-viewer__canvas')[0]
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this.canvasPosition = {
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x: canvasDiv.offsetWidth / 2 - img.width / 2,
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y: canvasDiv.offsetHeight / 2 - img.height / 2 - 25
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} // 背景居中
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this.$nextTick(async() => {
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ctx = document.getElementById('canvas').getContext('2d') // 获取上下文
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await ctx.drawImage(img, 0, 0, img.width, img.height) // 在canvas中绘制图片(图片、起始位置、绘图尺寸)
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this.drawToArr()
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this.loading = false
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})
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},
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// 清空画布
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clearCanvas() {
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this.canvasData = [] // 清空图形数据
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this.currentDrawData = {} // 清空当前绘图数据
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ctx.clearRect(0, 0, this.canvasSize.width, this.canvasSize.height) // 清除画布图形
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ctx.drawImage(
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this.currentImg,
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0,
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0,
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this.canvasSize.width,
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this.canvasSize.height
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) // 重绘背景
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},
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// 阻止默认右键冒泡事件，去除右键菜单
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handleContextmenu(e) {
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e.preventDefault()
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},
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// 鼠标按下事件
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handleMouseDown(e) {
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if (e.button !== 0) {
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return
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}
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this.isMouseDown = true // 打开鼠标状态
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// 获取画布中鼠标开始点击位置
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this.canvasMouseStart = {
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x: e.offsetX,
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y: e.offsetY
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}
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},
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// 鼠标移动事件
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async handleMouseMove(e) {
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// 获取屏幕中鼠标位置(显示实时坐标)
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this.mousePosition = {
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x: e.pageX,
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y: e.pageY
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}
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// 获取画布中鼠标位置
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this.canvasMousePosition = {
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x: e.offsetX,
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y: e.offsetY
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}
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// 判断是否超出边界
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if (e.offsetX < 0 || e.offsetY < 0 || e.offsetX === 0 || e.offsetY === 0) {
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this.isMsg = false
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this.isMouseDown = false // 关闭鼠标状态
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}
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// 判断鼠标状态是否打开
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if (!this.isMouseDown) {
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return
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}
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ctx.clearRect(0, 0, this.canvasSize.width, this.canvasSize.height) // 清除画布后立刻重新绘制视觉上形成动画
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await ctx.drawImage(
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this.currentImg,
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0,
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0,
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this.canvasSize.width,
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this.canvasSize.height
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) // 在canvas中绘制图片
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await this.drawToArr() // 重绘列表数据
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// 绘制直线
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if (this.model === 'ArrowAnnotate') {
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this.drawArrowAnnotate(e)
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}
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},
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// 通过保存的大列表绘制图形
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async drawToArr() {
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// 遍历大列表开始绘制
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await this.canvasData.forEach((e) => {
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// 绘制直线
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if (e.seriesId === this.imgId && e.type === 'ArrowAnnotate') {
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var headlen = 10// 自定义箭头线的长度
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var theta = 45// 自定义箭头线与直线的夹角
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var arrowX, arrowY// 箭头线终点坐标
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var fromX = e.data.handles.start.x
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var fromY = e.data.handles.start.y
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var toX = e.data.handles.end.x
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var toY = e.data.handles.end.y
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// 计算各角度和对应的箭头终点坐标
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var angle = Math.atan2(fromY - toY, fromX - toX) * 180 / Math.PI
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var angle1 = (angle + theta) * Math.PI / 180
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var angle2 = (angle - theta) * Math.PI / 180
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var topX = headlen * Math.cos(angle1)
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var topY = headlen * Math.sin(angle1)
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var botX = headlen * Math.cos(angle2)
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var botY = headlen * Math.sin(angle2)
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// 画直线
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ctx.lineWidth = this.lineWidth
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ctx.beginPath()
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ctx.moveTo(fromX * this.imgZoom, fromY * this.imgZoom)
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ctx.lineTo(toX * this.imgZoom, toY * this.imgZoom)
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arrowX = toX + topX
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arrowY = toY + topY
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// 画上边箭头线
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ctx.moveTo(arrowX, arrowY)
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ctx.lineTo(toX, toY)
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arrowX = toX + botX
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arrowY = toY + botY
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// 画下边箭头线
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ctx.lineTo(arrowX, arrowY)
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this.drawText(ctx, { x: fromX, y: fromY }, { x: toX, y: toY }, e.data.remark, this.color)
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ctx.strokeStyle = this.color
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ctx.stroke()
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}
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})
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},
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// 鼠标松开事件
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handleMouseUp(e) {
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if (e.button !== 0) {
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return // 非左键松开
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}
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// 左键松开
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if (this.model === 'ArrowAnnotate') {
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for (const key in this.currentDrawData.data.handles) {
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this.currentDrawData.data.handles[key].x = this.currentDrawData.data.handles[key].x / this.imgZoom
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this.currentDrawData.data.handles[key].y = this.currentDrawData.data.handles[key].y / this.imgZoom
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}
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this.canvasData.push(this.currentDrawData) // 添加当前绘图数据
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}
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console.log(this.canvasData, this.currentDrawData)
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this.isMouseDown = false // 关闭鼠标状态
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this.model = ''
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this.lesionName = ''
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this.canvasMousePosition = {
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x: e.offsetX, // 更新位置
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y: e.offsetY
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}
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// 向主窗体发送测量数据
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var data = { type: 'setMeasurement', data: this.currentDrawData }
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window.opener.postMessage(data, window.location)
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},
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// 画标注
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drawArrowAnnotate(e) {
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var headlen = 10// 自定义箭头线的长度
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var theta = 45// 自定义箭头线与直线的夹角
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var arrowX, arrowY// 箭头线终点坐标
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var fromX = this.canvasMouseStart.x
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var fromY = this.canvasMouseStart.y
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var toX = e.offsetX
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var toY = e.offsetY
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// 计算各角度和对应的箭头终点坐标
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var angle = Math.atan2(fromY - toY, fromX - toX) * 180 / Math.PI
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var angle1 = (angle + theta) * Math.PI / 180
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var angle2 = (angle - theta) * Math.PI / 180
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var topX = headlen * Math.cos(angle1)
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var topY = headlen * Math.sin(angle1)
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var botX = headlen * Math.cos(angle2)
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var botY = headlen * Math.sin(angle2)
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ctx.lineWidth = this.lineWidth
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ctx.beginPath()
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ctx.strokeStyle = this.color
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ctx.moveTo(this.canvasMouseStart.x, this.canvasMouseStart.y) // 画笔移动至(x,y)坐标
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ctx.lineTo(e.offsetX, e.offsetY) // 绘直线至(x,y)坐标
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arrowX = toX + topX
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arrowY = toY + topY
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// 画上边箭头线
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ctx.moveTo(arrowX, arrowY)
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ctx.lineTo(toX, toY)
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arrowX = toX + botX
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arrowY = toY + botY
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// 画下边箭头线
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ctx.lineTo(arrowX, arrowY)
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this.drawText(ctx, { x: fromX, y: fromY }, { x: toX, y: toY }, this.lesionName, this.color)
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ctx.stroke()
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this.currentDrawData = {
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isDicomReading: false,
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studyId: this.studyId,
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seriesId: this.imgId,
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instanceId: '',
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type: 'ArrowAnnotate',
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data: {
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handles: {
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start: { x: this.canvasMouseStart.x, y: this.canvasMouseStart.y },
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end: { x: e.offsetX, y: e.offsetY }
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},
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remark: this.lesionName,
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uuid: `${this.imgId}-${this.lesionName}`,
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toolName: 'ArrowAnnotate',
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toolType: 'ArrowAnnotate'
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}
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}
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},
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drawText(ctx, start, end, text, color) {
|
|
if (text && text !== '') {
|
|
const padding = 5
|
|
const textWidth = this.textBoxWidth(ctx, text, padding)
|
|
const fontSize = 12
|
|
const textHeight = fontSize + 10
|
|
|
|
let distance = Math.max(textWidth, textHeight) / 2 + padding
|
|
|
|
if (end.x < start.x) {
|
|
distance = -distance
|
|
}
|
|
var textCoords = {
|
|
x: end.x - textWidth / 2 - distance,
|
|
y: end.y - textHeight / 2
|
|
}
|
|
|
|
const boundingBox = {
|
|
width: textWidth,
|
|
height: padding + fontSize + padding
|
|
}
|
|
boundingBox.left = textCoords.x
|
|
boundingBox.top = textCoords.y
|
|
ctx.textBaseline = 'top'
|
|
ctx.font = `${fontSize}px Arial`
|
|
ctx.fillStyle = color
|
|
ctx.fillText(
|
|
text,
|
|
boundingBox.left + padding,
|
|
boundingBox.top + padding + fontSize + padding
|
|
)
|
|
}
|
|
},
|
|
textBoxWidth(context, text, padding) {
|
|
const width = context.measureText(text).width
|
|
|
|
return width + 2 * padding
|
|
},
|
|
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'
|
|
},
|
|
|
|
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>
|