Package com.inductiveautomation.rm.pdf.reader

Class PDFFile

java.lang.Object
com.inductiveautomation.rm.pdf.reader.PDFFile
public class PDFFile extends Object
This class is used to read a PDF file for parsing.

  • Constructor Details

    • PDFFile

      public PDFFile(byte[] bytes)
      Creates a new PDF file for the PDF file bytes.

  • Method Details

    • getVersion

      public float getVersion()
      Gets the pdf version as a float.

    • getPage

      public PDFPage getPage(int aPageIndex)
      Returns an individual PDF page for the given page index. This function used to create a new instance every time, but it gets called repeatedly by imagereader and pageparser, so half a dozen (at least) page instances were getting created for every pdf import. This of course also defeated any useful caching behavior in the RMPDFPage.

      The file could be hundreds of pages big, and we're most likely only ever looking at one page. Creating a sparse array hundreds of elements large seems silly, so we'll use a map instead.

    • clearPageCache

      public void clearPageCache()
      Clears the page cache.

    • getPageCount

      public int getPageCount()
      Returns the number of PDF pages in the PDF file.

    • inheritedAttributeForKeyInPage

      public Object inheritedAttributeForKeyInPage(String aKey, Map aPage)
      Returns x.

    • getXRefTablePosition

      public int getXRefTablePosition()
      PDF reading starts at file end - this routine starts at end and searches backwards until it finds startxref key It returns file offset to the xref table (also checks that a valid EOF is present).

    • getXRefObject

      public Object getXRefObject(PDFXEntry anEntry)
      Returns the object from the xref table, reading it if necessary.

    • resolveObject

      public Object resolveObject(Object obj)
      Given an object, check to see if its an indirect reference - if so, resolve the reference.

    • readCompressedEntry

      public Object readCompressedEntry(int ostmNum, int objIndex)

    • resetXRefTable

      public void resetXRefTable()
      Call this to clear the state of all xref table entries. This will allow objects created while examining the file to get garbage collected.

    • setStripsExtendedGStates

      public void setStripsExtendedGStates(boolean flag)

    • getFontFactory

      public FontFactory getFontFactory()
      Graphics object creation factories

    • setFontFactory

      public void setFontFactory(FontFactory f)

    • getPathFactory

      public PathFactory getPathFactory()

    • setPathFactory

      public void setPathFactory(PathFactory p)

    • getColorFactory

      public ColorFactory getColorFactory()

    • setColorFactory

      public void setColorFactory(ColorFactory c)

    • getImageFactory

      public ImageFactory getImageFactory()

    • setImageFactory

      public void setImageFactory(ImageFactory f)

    • getMarkupHandler

      public PDFMarkupHandler getMarkupHandler()
      The callback handler

    • setMarkupHandler

      public void setMarkupHandler(PDFMarkupHandler h)