feat(上报内容): 调大水印文字大小

pages/record-content/index.vue

@@ -443,7 +443,7 @@
 import { actionsOptions, week } from '@/pages/record-content/mock';
 import UploadActionSheet from '@/pages/record-content/UploadActionSheet';
 import CertificateTypeActionSheet from '@/pages/record-content/CertificateTypeActionSheet';
-import { baseEncode } from '@/utils/util';
+import { baseEncode, getImageInfo } from '@/utils/util';
 
 const maxUploadVideoSizeM = 50 // M
 const maxUploadVideoSize = maxUploadVideoSizeM * 1000 * 1000 // 单位 B，参考 macOS 用 1000 计算
@@ -692,7 +692,7 @@ export default {
      * @returns {Promise<void>}
      */
     async onUpload(item) {
-      const upLoad = async (file, type = 'image') => {
+      const upLoad = async (file, type = 'image', tempFilePath) => {
         const media = {
           id: uni.$u.guid(),
           type,
@@ -713,13 +713,32 @@ export default {
         const myDay = `${'拍摄时间:' + '  '}${uni.$u.timeFormat(new Date(), 'yyyy-mm-dd hh:MM:ss')}`;
 
         const { key } = JSON.parse(res);
+
+        // 水印文字大小，单位: 缇 ，等于1/20磅，默认值是240缇，参考DPI为72。
+        // 1px(像素) = 0.75 磅
+        // 1 / 20 * (1 / .75) * 240 => 16
+        // 所以 240 缇约等于 16px
+        // 1px => 15 缇
+
+        const isImage = type === 'image'
+        let scale = 1
+        if (isImage) {
+          const { width, height } = await getImageInfo(tempFilePath)
+          // 拿到短边参考
+          const ref = Math.min(width, height)
+          const phoneWidth = 375
+          const scale = ref / phoneWidth
+        }
+        const getRealSize = value => ~~(value * scale)
+        const fontSize = getRealSize(240 * 2.5)
+
         media.url =
           type === 'image'
             ? `${data.qn_domain}${key}?watermark/3/text/${baseEncode(myAddress)
                 .replace(/\+/g, '-')
-                .replace(/\//g, '_')}/font/5b6u6L2v6ZuF6buR/fontsize/240/fill/I0ZGRkZGRg==/dissolve/100/gravity/SouthWest/dx/28/dy/40/text/${baseEncode(myDay)
+                .replace(/\//g, '_')}/font/5b6u6L2v6ZuF6buR/fontsize/${fontSize}/fill/I0ZGRkZGRg==/dissolve/100/gravity/SouthWest/dx/${getRealSize(28)}/dy/${getRealSize(50)}/text/${baseEncode(myDay)
                 .replace(/\+/g, '-')
-                .replace(/\//g, '_')}/font/5b6u6L2v6ZuF6buR/fontsize/240/fill/I0ZGRkZGRg==/dissolve/100/gravity/SouthWest/dx/28/dy/10`
+                .replace(/\//g, '_')}/font/5b6u6L2v6ZuF6buR/fontsize/${fontSize}/fill/I0ZGRkZGRg==/dissolve/100/gravity/SouthWest/dx/${getRealSize(28)}/dy/${getRealSize(10)}`
             : `${data.qn_domain}${key}`;
         media.status = 'finish';
 
@@ -735,8 +754,9 @@ export default {
         case 'image':
           uni.chooseImage({
             success: (result) => {
-              result.tempFiles.forEach((value) => {
-                upLoad(value);
+              console.log(result, 'result')
+              result.tempFiles.forEach((value, index) => {
+                upLoad(value, undefined, result.tempFilePaths[index]);
               });
             },
             fail: (result) => {

utils/util.js

@@ -128,4 +128,10 @@ export const baseEncode = (str) => {
   return base64_encode(utf16to8(str));
 };
 
+export const getImageInfo = src => {
+  return new Promise((resolve, reject) => {
+    uni.getImageInfo({ src, success: resolve, fail: reject })
+  })
+}
+
 export default myRequest;