Android - PDFTron - ズームインモードで注釈を描く

Question

私はPdfTron SDKを使用しています。ユーザーがズームインした後にアノテーションを描画しようとしています。アノテーションはブックの横にある必要があります）しかし、私たちがズームインすると、本の中心に描かれます（写真1と2）。ズームと

例（間違った状態）：ズームなし

例（右状態）：今私は

関数を使用してconvPagePtToScreenPtしかし、ユーザーがズームインしていない場合、注釈を適切に描画しています。 誰かが使用する関数を知っていますか？

これは私のコードです：

public synchronized void drawAnnotation(AnnotationData annotationData){ 

    if (annotationData == null) { 
     return; 
    } 


    AnnotationType annotationType = annotationData.getType(); 

    if (annotationType == null) { 
     return; 
    } 

    ToolManager.Tool tool = mToolManager.createTool(ToolManager.e_text_annot_create, null); 
     if (tool instanceof StickyNoteCreate) { 
      StickyNoteCreate annotStickyCreate = (StickyNoteCreate) tool; 
      Point point; 
      double[] pts; 
      double[] ptsForScreenSize = {0, 0}; 
      int orientation = mContext.getResources().getConfiguration().orientation; 
      if (mPDFView != null) { 
       if (orientation == Configuration.ORIENTATION_PORTRAIT) { 
        ptsForScreenSize = mPDFView.convScreenPtToPagePt((double) BookReader.SCREEN_WIDTH, (double) BookReader.SCREEN_HEIGHT, annotationData.getPage()); 
       } else { 
        ptsForScreenSize = mPDFView.convScreenPtToPagePt((double) BookReader.SCREEN_HEIGHT, (double) BookReader.SCREEN_WIDTH, annotationData.getPage()); 
        if (!TextUtils.isEmpty(annotationData.getStartLoc()) && !TextUtils.isEmpty(annotationData.getEndLoc()) && mPDFView != null) { 
         //if we have an annotation for text 
         pts = mPDFView.convPagePtToScreenPt(annotationData.getStartX(), annotationData.getStartY(), annotationData.getPage()); 
        } else { 
         //if we have an annotation for Page 
         pts = new double[]{0, 0}; 
        }     
        ptsForScreenSize = mPDFView.convPagePtToScreenPt(ptsForScreenSize[0] - INT_ANNO_PADDING, ptsForScreenSize[1], annotationData.getPage()); 
        final AnnotationData noteTextHighlight = new AnnotationData(annotationData); 
        //we don't need to set UniqueId for this highlight annotation 
        noteTextHighlight.setUniqueId(null); 
        highlightSelectedText(noteTextHighlight); 
        double marginY = BookReader.SCREEN_HEIGHT * 0.015; 
        point = new Point(ptsForScreenSize[0], pts[1] + marginY); 
        annotStickyCreate.createNoteIconOnPage(annotationData, point); 
       } 
      } 
    }  
} 


    public void createNoteIconOnPage(AnnotationData annotationData, Point noteIconPoint) { 
    KsLog.d("IsBookReaderAviliable","createNoteIconOnPage : " + BookReader.isBookReaderVisible()); 
    if(BookReader.isBookReaderVisible()){ 
     try { 
      mPDFView.docLock(true); 
      PDFDoc pdfDoc = mPDFView.getDoc(); 
      double[] pts = mPDFView.convScreenPtToPagePt(noteIconPoint.x, noteIconPoint.y, annotationData.getPage()); 
      Point p = new Point(pts[0], pts[1]); 
      com.pdftron.pdf.annots.Text text = com.pdftron.pdf.annots.Text.create(pdfDoc, p); 
      text.setUniqueID(annotationData.getUniqueId()); 
      //creating the annotation appearance - icon 

      // Let's create an appearance for the annotation using an image 
      ElementBuilder builder = new ElementBuilder(); 
      ElementWriter writer = new ElementWriter(); 
      writer.begin(pdfDoc); 

      Image image = Image.create(pdfDoc, annotationData.getDrawable()); 

      int w = image.getImageWidth(), h = image.getImageHeight(); 

      Element element = builder.createImage(image, 0, 0, w, h); 

      writer.writePlacedElement(element); 

      writer.writeElement(builder.createTextBegin(Font.create(pdfDoc, Font.e_times_roman), 12)); 

      writer.writeElement(element); 
      writer.writeElement(builder.createTextEnd()); 

      Obj appearance = writer.end(); 
      appearance.putRect("BBox", 0.1, 0.1, w, h); 
      text.setAppearance(appearance); 

     /* 
     The left icons spouse to be bigger the the regular icons 
     */ 
      if (annotationData.getType() == AnnotationData.AnnotationType.LINK && (annotationData.getShard() == AnnotationData.LEFT_LINK_A || annotationData.getShard() == AnnotationData.LEFT_LINK_B)) { 
       text.setRect(new Rect(pts[0], pts[1], pts[0] + 30, pts[1] + 30)); 
      } 

      if (annotationData.getType() == AnnotationData.AnnotationType.NOTE) { 
       text.setContents(AnnotationData.NOTE_TYPE_CONTENTS); 
      } else if (annotationData.getType() == AnnotationData.AnnotationType.LINK) { 
       text.setContents(AnnotationData.LINK_TYPE_CONTENTS); 
      } 

      KsLog.d("createNoteIconOnPage","getPage() " + annotationData.getPage()); 
      Page page = pdfDoc.getPage(annotationData.getPage()); 
      if (page != null) { 
       page.annotPushBack(text); 
      } 


      mAnnotPushedBack = true; 
      mAnnot = text; 
      mAnnotPageNum = annotationData.getPage(); 
      KsLog.d("createNoteIconOnPage","mDownPageNum " + mAnnotPageNum); 

      buildAnnotBBox(); 
      mPDFView.update(mAnnot, mAnnotPageNum); 
      raiseAnnotationAddedEvent(mAnnot, mAnnotPageNum); 

     } catch (Exception ex) { 
      Log.e(PDFTronReader.TAG, ex.toString()); 
      mNextToolMode = ToolManager.e_pan; 

     } finally { 
      mPDFView.docUnlock(); 

     } 
     mPDFView.waitForRendering(); 
    } 
} 

Answer 1

次のコードは、1インチ上から、任意のページの右側に注釈を配置します。

Matrix2D mtx = page.getDefaultMatrix(true).inverse(); 
double x1 = page.getPageWidth() - 25; // this is the width as the a user sees it (rotated). 20 is the width of a Text annotation 
double y1 = 72; // not clear how you decide the vertical placement. In this example, this 1 inch from the top as the user views the page. If you have the value from the bottom, switch the boolean value argument in GetDefaultMatrix 
mtx.mult(ref x1, ref y1); 
com.pdftron.pdf.Annots.Text txt = com.pdftron.pdf.Text.create(doc, new Point(x1, y1)); 
page.annotPushBack(txt); 

コードに関しては、画面とページの座標に混乱が生じているようです。たとえば、ある行のptsForScreenSizeがConvScreenPtToPagePtの結果を渡し、別の行でConvPagePtToScreenPtの結果を渡します。