refactor: 优化箭头展示，并适配屏幕变化

fe/src/components/NLP/rel.vue

@@ -2,12 +2,12 @@
   <div class="rel-box">
     <svg v-for="(relLine, idx) in relLines" :key="idx" class="rel"
         xmlns="http://www.w3.org/2000/svg" version="1.1" >
-      <marker id="arrow" markerUnits="strokeWidth" markerWidth="10" markerHeight="10" viewBox="0 0 12 12" refX="6" refY="6" orient="auto">
+      <marker id="arrow" markerUnits="strokeWidth" markerWidth="8" markerHeight="8" viewBox="0 0 12 12" refX="6" refY="6" orient="auto">
         <path d="M2,2 L10,6 L2,10 L6,6 L2,2" :style="`fill:${types[relDetails[idx]['type']]['color']}`"/>
       </marker>
       <path :d="relLine"
         :title="relDetails[idx]['type']"
-        :style="`stroke:${types[relDetails[idx]['type']]['color']};stroke-width:2;fill:#0000;marker-end:url(#arrow)`"
+        :style="`stroke:${types[relDetails[idx]['type']]['color']};stroke-width:3;fill:#0000;marker-end:url(#arrow)`"
         @contextmenu="delRel($event, idx)"
       />
     </svg>
@@ -15,7 +15,6 @@
 </template>
 
 <script>
-
 export default ({
   name: 'Rel',
   props: {
@@ -53,27 +52,34 @@ export default ({
       e.preventDefault()
       this.relDetails.splice(idx, 1)
       this.save()
+    },
+    calRelLines (val) {
+      console.log('21341234');
+      if (!val) {
+        val = this.relDetails
+      }
+      console.log(this.types)
+      let _relLines = []
+      for (let i = 0; i < val.length; i++) {
+        const item = val[i]
+        let startCharDom = document.getElementById(item.start)
+        let endCharDom = document.getElementById(item.end)
+        let sx = startCharDom.offsetLeft + startCharDom.offsetWidth / 2
+        let sy = startCharDom.offsetTop + 9
+        let ex = endCharDom.offsetLeft + endCharDom.offsetWidth / 2
+        let ey = endCharDom.offsetTop + 9
+        let cx = (sx + ex) / 2
+        let cy = (sy + ey) / 2 - 20
+        _relLines.push(`M${sx} ${sy} Q${cx} ${cy} ${ex} ${ey}`)
+      }
+      console.log(_relLines)
+      this.relLines = _relLines
     }
   },
   watch: {
     relDetails: {
       handler (val) {
-        console.log(this.types)
-        let _relLines = []
-        for (let i = 0; i < val.length; i++) {
-          const item = val[i]
-          let startCharDom = document.getElementById(item.start)
-          let endCharDom = document.getElementById(item.end)
-          let sx = startCharDom.offsetLeft + startCharDom.offsetWidth / 2
-          let sy = startCharDom.offsetTop + 9
-          let ex = endCharDom.offsetLeft + endCharDom.offsetWidth / 2
-          let ey = endCharDom.offsetTop + 9
-          let cx = (sx + ex) / 2
-          let cy = (sy + ey) / 2 - 20
-          _relLines.push(`M${sx} ${sy} Q${cx} ${cy} ${ex} ${ey}`)
-        }
-        console.log(_relLines)
-        this.relLines = _relLines
+        this.calRelLines(val)
       },
       deep: true
     },
@@ -81,6 +87,12 @@ export default ({
       handler (val) {
       }
     }
+  },
+  mounted () {
+    let that = this
+    window.onresize = function () {
+      that.calRelLines()
+    }
   }
 })
 </script>
@@ -101,4 +113,8 @@ export default ({
     pointer-events: all;
     cursor: pointer;
   }
+  .rel:hover {
+    /* 抬起来一些 */
+    opacity: 0.5;
+  }
 </style>