| | |
| | | <template> |
| | | <div class="imgbox"> |
| | | <div ref="imageBox" class="imageBox"> |
| | | <img |
| | | id="image" |
| | | ref="image" |
| | | :onLoad="initFun" |
| | | :onDragStart="dragStart" |
| | | :onWheel="handleScroll" |
| | | @onload="initFun" |
| | | @ondragstart="dragStart" |
| | | @onwheel="handleScroll" |
| | | :src="currentPageSrc" |
| | | alt="" |
| | | /> |
| | |
| | | created() { |
| | | this.getFileInfo(); |
| | | }, |
| | | mounted(){ |
| | | // this.initFun() |
| | | }, |
| | | methods: { |
| | | initFun() { |
| | | // 初始化拖拽 |
| | | let image = this.refs.image; |
| | | let imageBox = this.refs.imageBox; |
| | | let image = this.$refs.image; |
| | | console.log(this,8989); |
| | | if (image) { |
| | | let imageBox = this.$refs.imageBox; |
| | | let initLeft = imageBox.offsetWidth / 2 - image.offsetWidth / 2; |
| | | image.style.left = initLeft + "px"; |
| | | image.style.left = 0 + "px"; |
| | | image.style.top = 0 + "px"; |
| | | let canMove = false; |
| | | let offsetX, offsetY, oldLeft, oldTop; |
| | |
| | | canMove = false; |
| | | }; |
| | | this.fileLoading = false; |
| | | } |
| | | }, |
| | | dragStart(e) { |
| | | console.log(e,'dragStart') |
| | | if (e && e.preventDefault) { |
| | | e.preventDefault(); |
| | | } else { |
| | |
| | | } |
| | | }, |
| | | handleScroll(e) { |
| | | console.log(e,'handleScroll') |
| | | if (e.nativeEvent.deltaY <= 0) { |
| | | if (this.zoom < 3) { |
| | | let newZoom = this.zoom + 0.1; |
| | | this.zoom = newZoom; |
| | | this.refs.image.style.height = newZoom * 100 + "%"; |
| | | this.$refs.image.style.height = newZoom * 100 + "%"; |
| | | } |
| | | } else { |
| | | if (this.zoom > 0.5) { |
| | | let newZoom = this.zoom - 0.1; |
| | | this.zoom = newZoom; |
| | | this.refs.image.style.height = newZoom * 100 + "%"; |
| | | this.$refs.image.style.height = newZoom * 100 + "%"; |
| | | } |
| | | } |
| | | }, |
| | |
| | | }; |
| | | </script> |
| | | <style scoped lang="less"> |
| | | .imgbox { |
| | | .imageBox { |
| | | width: 100%; |
| | | height: 100%; |
| | | background-color: aquamarine; |
| | | height: 300px; |
| | | overflow: auto; |
| | | position: relative; |
| | | img { |
| | | width: 100%; |
| | | position: absolute; |
| | | width: auto; |
| | | height: 100%; |
| | | transition: transform 0.5s, width 0.3s, height 0.3s; |
| | | } |
| | | } |
| | | </style> |