ITextSharp 关键字定位

 1         #region IText 模块

 2         private class MyRenderListener : IRenderListener

 3         {

 4             public void BeginTextBlock() { }

 5             public void EndTextBlock() { }

 6             public void RenderImage(ImageRenderInfo renderInfo) { }

 7 

 8             public void RenderText(TextRenderInfo textRenderInfo)

 9             {

10                 string text = textRenderInfo.GetText();

11                 if (text.Contains(KEY_WORD))

12                 {

13                     RectangleJ boundRectange = textRenderInfo.GetBaseline().GetBoundingRectange();

14                     page = cycler-1;

15                     x = (int)boundRectange.X;

16                     y = (int)boundRectange.Y;

17                 }

18             }

19         }

20 

21         private ErrorCode GetPositionByIText(string path)

22         {

23             ErrorCode err = ErrorCode.E_OK;

24             try

25             {

26                 PdfReader reader = new PdfReader(path);

27                 PdfReaderContentParser parser = new PdfReaderContentParser(reader);

28                 MyRenderListener listener = new MyRenderListener();

29                 int numPages = reader.NumberOfPages;

30                 for (cycler = 1; cycler <= numPages; cycler++)

31                     parser.ProcessContent(cycler, listener);

32                 reader.Close();

33             }

34             catch (System.Exception ex)

35             {

36                 err = ErrorCode.E_EXCEPTION;

37                 LogCrash("itext.GetPosition()--" + ex.Message);

38             }

39             return err;

40         }

41         #endregion IText 模块