Pre Merge pull request !389 from 田双明/master

entry/src/main/ets/pages/DownSamplePage.ets

@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 import { DownsampleStrategy, ImageKnifeOption, } from '@ohos/imageknife';
-import { ImageKnifeComponent } from '@ohos/libraryimageknife';
+import { ImageKnifeComponent, BlurTransformation, } from '@ohos/libraryimageknife';
 import { image } from '@kit.ImageKit';
 import { BusinessError } from '@kit.BasicServicesKit';
 import { Downsampler } from '@ohos/imageknife/src/main/ets/downsampling/Downsampler';
@@ -73,7 +73,8 @@ struct DownSamplePage {
       })
       this.originalPixMap($r('app.media.pngSample'))
       this.afterSamplingFunc($r('app.media.pngSample'))
-    } else if (value === 'FIT_CENTER_QUALITY') {
+    }
+    else if (value ==='FIT_CENTER_QUALITY') {
       this.imageKnifeOption =new ImageKnifeOption( {
         loadSrc: $r('app.media.pngSample'),
         placeholderSrc: $r("app.media.loading"),
@@ -83,7 +84,8 @@ struct DownSamplePage {
       })
       this.originalPixMap($r('app.media.pngSample'))
       this.afterSamplingFunc($r('app.media.pngSample'))
-    } else if (value === 'CENTER_INSIDE_MEMORY') {
+    }
+    else if (value === 'CENTER_INSIDE_MEMORY') {
       this.imageKnifeOption = new ImageKnifeOption({
         loadSrc: $r('app.media.pngSample'),
         placeholderSrc: $r("app.media.loading"),
@@ -103,7 +105,8 @@ struct DownSamplePage {
       })
       this.originalPixMap($r('app.media.pngSample'))
       this.afterSamplingFunc($r('app.media.pngSample'))
-    } else {
+    }
+    else {
       this.imageKnifeOption = new ImageKnifeOption({
         loadSrc: $r('app.media.pngSample'),
         placeholderSrc: $r("app.media.loading"),
@@ -120,7 +123,7 @@ struct DownSamplePage {
     let img: Uint8Array = await getContext(this).resourceManager.getMediaContent(imgs);
     let imageSource: image.ImageSource = image.createImageSource(img.buffer.slice(0));
     let fileTypeUtil = new FileTypeUtil();
-    let typeValue = fileTypeUtil.getFileType(img.buffer.slice(0)) as string;
+    let typeValue = fileTypeUtil.getFileType(img.buffer.slice(0));
     let decodingOptions: image.DecodingOptions = {
       editable: true,
       desiredPixelFormat: 3,

library/src/main/ets/ImageKnifeLoader.ets

@@ -15,9 +15,7 @@
 import {
   CacheStrategy,
   ImageKnifeRequestSource,
-  ImageKnifeRequestWithSource,
-  RequestJobRequest
-} from './model/ImageKnifeData';
+  ImageKnifeRequestWithSource, RequestJobRequest } from './model/ImageKnifeData';
 import List from '@ohos.util.List'
 import { FileCache } from './cache/FileCache';
 import { LogUtil } from './utils/LogUtil';
@@ -66,12 +64,10 @@ export class ImageKnifeLoader {
     }
   }
 
-  static async parseNormalImage(resBuf: ArrayBuffer, typeValue: string, fileKey: string,
-    request: RequestJobRequest): Promise<RequestJobResult> {
+  static async parseNormalImage(resBuf: ArrayBuffer, typeValue: string, fileKey: string, request: RequestJobRequest):Promise<RequestJobResult> {
     let resPixelmap: PixelMap | undefined = undefined
     let decodingOptions: image.DecodingOptions = {
-      editable: request.requestSource === ImageKnifeRequestSource.SRC && request.transformation !== undefined ? true :
-        false,
+      editable: request.requestSource === ImageKnifeRequestSource.SRC && request.transformation !== undefined ? true : false,
     }
     let imageSource: image.ImageSource = image.createImageSource(resBuf)
     if (imageSource === undefined){
@@ -82,7 +78,7 @@ export class ImageKnifeLoader {
     try{
       if ((request.downsampType !== DownsampleStrategy.NONE) &&
         request.requestSource == ImageKnifeRequestSource.SRC ) {
-        decodingOptions = ImageKnifeLoader.downsamplerReqSize(typeValue, request, size, ImageKnifeRequestSource.SRC)
+        decodingOptions =await ImageKnifeLoader.downsamplerReqSize(typeValue,request,size,ImageKnifeRequestSource.SRC)
       }
     }catch(err){
       return ImageKnifeLoader.makeEmptyResult("image.createImageSource failed")
@@ -105,7 +101,6 @@ export class ImageKnifeLoader {
       type:typeValue
     };
   }
-
   static async parseSvgImage(resBuf: ArrayBuffer, typeValue: string, fileKey: string,
     request: RequestJobRequest): Promise<RequestJobResult>  {
     let resPixelmap: PixelMap | undefined = undefined
@@ -129,7 +124,7 @@ export class ImageKnifeLoader {
     try{
       if ((request.downsampType !== DownsampleStrategy.NONE) &&
         request.requestSource == ImageKnifeRequestSource.SRC ) {
-        opts = ImageKnifeLoader.downsamplerReqSize(typeValue, request, size)
+        opts =await ImageKnifeLoader.downsamplerReqSize(typeValue,request,size)
       }
     }catch(err){
       return ImageKnifeLoader.makeEmptyResult("image.createImageSource failed")
@@ -150,7 +145,6 @@ export class ImageKnifeLoader {
       type:typeValue
     };
   }
-
   static async parseAnimatorImage(resBuf: ArrayBuffer, typeValue: string,
     fileKey: string,request: RequestJobRequest): Promise<RequestJobResult>  {
     let imageSource: image.ImageSource = image.createImageSource(resBuf)
@@ -164,8 +158,7 @@ export class ImageKnifeLoader {
 
     if(frameCount == undefined || frameCount == 1) {
     } else {
-      let base64str =
-        "data:image/" + typeValue + ";base64," + new util.Base64Helper().encodeToStringSync(new Uint8Array(resBuf))
+      let base64str = "data:image/" + typeValue + ";base64," + new util.Base64Helper().encodeToStringSync(new Uint8Array(resBuf))
       return {
         pixelMap: base64str,
         bufferSize: resBuf.byteLength,
@@ -176,18 +169,15 @@ export class ImageKnifeLoader {
     }
     return ImageKnifeLoader.parseNormalImage(resBuf, typeValue, fileKey, request)
   }
-
   // 为AnimatorComponent解析动图
-  static async parseForAnimatorComponent(resBuf: ArrayBuffer, typeValue: string, fileKey: string,
-    request: RequestJobRequest): Promise<RequestJobResult> {
+  static async parseForAnimatorComponent(resBuf: ArrayBuffer, typeValue: string, fileKey: string,request: RequestJobRequest): Promise<RequestJobResult> {
     if (typeValue === 'gif' || typeValue === 'webp') {
       let imageSource: image.ImageSource = image.createImageSource(resBuf);
       if (imageSource === undefined){
         return ImageKnifeLoader.makeEmptyResult("image.createImageSource failed")
       }
       let decodingOptions: image.DecodingOptions = {
-        editable: request.requestSource === ImageKnifeRequestSource.SRC && request.transformation !== undefined ? true :
-          false,
+        editable: request.requestSource === ImageKnifeRequestSource.SRC && request.transformation !== undefined ? true : false,
       }
       let pixelMapList: Array<PixelMap> = []
       let delayList: Array<number> = []
@@ -224,13 +214,11 @@ export class ImageKnifeLoader {
   }
 
   // 获取图片资源
-  static async getImageArrayBuffer(request: RequestJobRequest,
-    requestList: List<ImageKnifeRequestWithSource> | undefined, fileKey: string): Promise<ArrayBuffer> {
+  static async getImageArrayBuffer(request: RequestJobRequest, requestList: List<ImageKnifeRequestWithSource> | undefined,fileKey:string): Promise<ArrayBuffer> {
     let resBuf: ArrayBuffer | undefined
 
     // 判断自定义下载
-    if (request.customGetImage !== undefined && request.requestSource == ImageKnifeRequestSource.SRC &&
-      typeof request.src == "string") {
+    if (request.customGetImage !== undefined && request.requestSource == ImageKnifeRequestSource.SRC && typeof request.src == "string") {
       // 先从文件缓存获取
       resBuf = FileCache.getFileCacheByFile(request.context, fileKey , request.fileCacheFolder)
       if (resBuf === undefined) {
@@ -251,14 +239,16 @@ export class ImageKnifeLoader {
           LogUtil.log("ImageKnife_DataTime_requestJob_saveFileCacheOnlyFile.end:" + request.src)
         }
       }
-    } else {
+    }
+    else {
       if (typeof request.src === 'string') {
         if (request.src.indexOf("http://") == 0 || request.src.indexOf("https://") == 0) { //从网络下载
           // 先从文件缓存获取
           resBuf = FileCache.getFileCacheByFile(request.context, fileKey , request.fileCacheFolder)
           if (resBuf !== undefined){
             LogUtil.log("success get image from filecache for key = " + fileKey + " src = " + request.src)
-          } else if (request.onlyRetrieveFromCache != true) {
+          }
+          else if (request.onlyRetrieveFromCache != true) {
             LogUtil.log("HttpDownloadClient.start:" + request.src)
             let httpRequest = http.createHttp();
             let progress: number = 0
@@ -290,8 +280,7 @@ export class ImageKnifeLoader {
                     }else {
                       // 主线程请求
                       requestList!.forEach((requestWithSource: ImageKnifeRequestWithSource) => {
-                        if (requestWithSource.request.imageKnifeOption.progressListener !== undefined &&
-                          requestWithSource.source === ImageKnifeRequestSource.SRC) {
+                        if (requestWithSource.request.imageKnifeOption.progressListener !== undefined && requestWithSource.source === ImageKnifeRequestSource.SRC) {
                           requestWithSource.request.imageKnifeOption.progressListener(progress)
                         }
                       })
@@ -326,7 +315,8 @@ export class ImageKnifeLoader {
               FileCache.saveFileCacheOnlyFile(request.context, fileKey, resBuf , request.fileCacheFolder)
               LogUtil.log("ImageKnife_DataTime_requestJob_saveFileCacheOnlyFile.end:"+request.src)
             }
-          } else {
+          }
+          else {
             throw new Error('onlyRetrieveFromCache,do not fetch image src = ' + request.src)
           }
         } else if (request.src.startsWith('datashare://') || request.src.startsWith('file://')) {
@@ -337,16 +327,13 @@ export class ImageKnifeLoader {
                 resBuf = buf;
                 fs.closeSync(file.fd);
               }).catch((err:BusinessError) => {
-                throw new Error('LoadDataShareFileClient fs.read err happened uri=' + request.src + " err.msg=" +
-                  err?.message + " err.code=" + err?.code)
+                throw new Error('LoadDataShareFileClient fs.read err happened uri=' + request.src + " err.msg=" + err?.message + " err.code=" + err?.code)
               })
             }).catch((err:BusinessError) => {
-              throw new Error('LoadDataShareFileClient fs.stat err happened uri=' + request.src + " err.msg=" +
-                err?.message + " err.code=" + err?.code)
+              throw new Error('LoadDataShareFileClient fs.stat err happened uri=' + request.src + " err.msg=" + err?.message + " err.code=" + err?.code)
             })
           }).catch((err:BusinessError) => {
-            throw new Error('LoadDataShareFileClient fs.open err happened uri=' + request.src + " err.msg=" +
-              err?.message + " err.code=" + err?.code)
+            throw new Error('LoadDataShareFileClient fs.open err happened uri=' + request.src + " err.msg=" + err?.message + " err.code=" + err?.code)
           })
         } else { //从本地文件获取
           try {
@@ -363,8 +350,7 @@ export class ImageKnifeLoader {
         }
       } else if (typeof request.src == "number") { //从资源文件获取
         let manager = request.context.createModuleContext(request.moduleName).resourceManager
-        if (resBuf == undefined && request.onlyRetrieveFromCache != true &&
-          request.requestSource == ImageKnifeRequestSource.SRC) {
+        if (resBuf == undefined && request.onlyRetrieveFromCache != true && request.requestSource == ImageKnifeRequestSource.SRC) {
           if(request.src == -1) {
             let resName = request.resName as string
             resBuf = (await manager.getMediaByName(resName.substring(10))).buffer as ArrayBuffer
@@ -387,12 +373,8 @@ export class ImageKnifeLoader {
     }
     return resBuf
   }
-
-  static downsamplerReqSize(typeValue: string, request: RequestJobRequest, size: Size,
-    SRC?: ImageKnifeRequestSource) {
-    let reqSize =
-      new Downsampler().calculateScaling(typeValue, size.width, size.height, request.targetWidth, request.targetHeight,
-        request.downsampType)
+  static async downsamplerReqSize(typeValue:string,request:RequestJobRequest ,size:Size,SRC?:ImageKnifeRequestSource): Promise<image.DecodingOptions>{
+    let reqSize = new Downsampler().calculateScaling(typeValue, size.width, size.height, request.targetWidth, request.targetHeight, request.downsampType)
     if(typeValue=="svg") {
       return ({
         editable: true,
@@ -400,7 +382,6 @@ export class ImageKnifeLoader {
           height: vp2px(reqSize.targetHeight),
           width: vp2px(reqSize.targetWidth)
         } as Size)
-
       } as  image.DecodingOptions )
     }else {
        return( {

library/src/main/ets/downsampling/Downsampler.ets

@@ -30,7 +30,7 @@ export interface calculateScaleType {
 
 export class Downsampler {
   calculateScaling(
-    typeValue: string,
+    typeValue: string |null,
     sourceWidth: number, //原始宽高
     sourceHeight: number, //原始宽高
     requestWidth: number, //请求宽高