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| <template>
| <div ref="imageBox" class="imageBox">
| <img
| id="image"
| ref="image"
| @onload="initFun"
| @ondragstart="dragStart"
| @onwheel="handleScroll"
| :src="currentPageSrc"
| alt=""
| />
| </div>
| </template>
| <script>
| export default {
| name: "pdf_view",
| props: {
| md5: {
| type: String,
| },
| title: {
| type: String,
| },
| },
| data() {
| return {
| currentPageSrc: "",
| fileLoading: false,
| visible: true,
| close: null,
| currentPage: 1,
| totalPage: 1,
| rcViewerOptions: {
| // inline: true
| },
| zoom: 1,
| catalogVisible: false,
| tocData: [],
| generateList: [],
| expandedKeys: [],
| searchValue: "",
| autoExpandParent: true,
| drawerSize: "default",
| };
| },
| watch: {
| md5: {
| handler(newVal, oldVal) {
| if (newVal) {
| this.getFileInfo();
| }
| },
| },
| },
| created() {
| this.getFileInfo();
| },
| mounted(){
| // this.initFun()
| },
| methods: {
| initFun() {
| // 初始化拖拽
| 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 = 0 + "px";
| image.style.top = 0 + "px";
| let canMove = false;
| let offsetX, offsetY, oldLeft, oldTop;
| image.onmousedown = function (e) {
| canMove = true;
| offsetX = e.x;
| offsetY = e.y;
| oldLeft = parseFloat(image.style.left.split("px")[0]);
| oldTop = parseFloat(image.style.top.split("px")[0]);
| };
| imageBox.onmousemove = function (e) {
| if (canMove == true) {
| let left = e.clientX - offsetX;
| let top = e.clientY - offsetY;
| image.style.left = oldLeft + left + "px";
| image.style.top = oldTop + top + "px";
| }
| };
| image.onmouseup = function () {
| canMove = false;
| };
| this.fileLoading = false;
| }
| },
| dragStart(e) {
| console.log(e,'dragStart')
| if (e && e.preventDefault) {
| e.preventDefault();
| } else {
| window.event.returnValue = false;
| }
| },
| 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.$refs.image.style.height = newZoom * 100 + "%";
| }
| } else {
| if (this.zoom > 0.5) {
| let newZoom = this.zoom - 0.1;
| this.zoom = newZoom;
| this.$refs.image.style.height = newZoom * 100 + "%";
| }
| }
| },
| getFileInfo() {
| // 获取目录
| this.MG.file
| .getPdfInfo({ md5: this.md5 })
| .then((res) => {
| this.totalPage = res.totalPages;
| this.getPageImage(this.currentPage);
| })
| .catch((err) => {
| console.error(err);
| });
| },
| getPageImage(page) {
| const ctx = process.env.VUE_APP_API_URL;
| this.fileLoading = true;
| this.currentPageSrc =
| ctx +
| "/file/GetPdfPageImage" +
| "?md5=" +
| this.md5 +
| "&index=" +
| page +
| "&dpi=150";
| },
| },
| };
| </script>
| <style scoped lang="less">
| .imageBox {
| width: 100%;
| height: 300px;
| overflow: auto;
| position: relative;
| img {
| position: absolute;
| width: auto;
| height: 100%;
| transition: transform 0.5s, width 0.3s, height 0.3s;
| }
| }
| </style>
|
|
