com.itextpdf.text.pdf
Class PdfReader.PageRefs

java.lang.Object
  extended by com.itextpdf.text.pdf.PdfReader.PageRefs
Enclosing class:
PdfReader

static class PdfReader.PageRefs
extends Object


Field Summary
private  boolean keepPages
           
private  int lastPageRead
          Page number of the last page that was read (partial reading only)
private  ArrayList<PdfDictionary> pageInh
          stack to which pages dictionaries are pushed to keep track of the current page attributes
private  PdfReader reader
           
private  ArrayList<PRIndirectReference> refsn
          ArrayList with the indirect references to every page.
private  IntHashtable refsp
          intHashtable that does the same thing as refsn in case of partial reading: major difference: not all the pages are read.
private  int sizep
          The number of pages, updated only in case of partial reading.
 
Constructor Summary
(package private) PdfReader.PageRefs(PdfReader.PageRefs other, PdfReader reader)
           
private PdfReader.PageRefs(PdfReader reader)
           
 
Method Summary
 PdfDictionary getPageN(int pageNum)
          Gets the dictionary that represents a page.
 PdfDictionary getPageNRelease(int pageNum)
           
 PRIndirectReference getPageOrigRef(int pageNum)
          Gets the page reference to this page.
 PRIndirectReference getPageOrigRefRelease(int pageNum)
           
protected  PRIndirectReference getSinglePage(int n)
           
(package private)  void insertPage(int pageNum, PRIndirectReference ref)
           
private  void iteratePages(PRIndirectReference rpage)
           
(package private)  void keepPages()
           
private  void popPageAttributes()
          Removes the last PdfDictionary that was pushed to the pageInh stack.
private  void pushPageAttributes(PdfDictionary nodePages)
          Adds a PdfDictionary to the pageInh stack to keep track of the page attributes.
(package private)  void readPages()
           
 void releasePage(int pageNum)
           
(package private)  void reReadPages()
           
 void resetReleasePage()
           
private  void selectPages(List<Integer> pagesToKeep)
           
(package private)  int size()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

reader

private PdfReader reader

refsn

private ArrayList<PRIndirectReference> refsn
ArrayList with the indirect references to every page. Element 0 = page 1; 1 = page 2;... Not used for partial reading.


sizep

private int sizep
The number of pages, updated only in case of partial reading.


refsp

private IntHashtable refsp
intHashtable that does the same thing as refsn in case of partial reading: major difference: not all the pages are read.


lastPageRead

private int lastPageRead
Page number of the last page that was read (partial reading only)


pageInh

private ArrayList<PdfDictionary> pageInh
stack to which pages dictionaries are pushed to keep track of the current page attributes


keepPages

private boolean keepPages
Constructor Detail

PdfReader.PageRefs

private PdfReader.PageRefs(PdfReader reader)
                    throws IOException
Throws:
IOException

PdfReader.PageRefs

PdfReader.PageRefs(PdfReader.PageRefs other,
                   PdfReader reader)
Method Detail

size

int size()

readPages

void readPages()
         throws IOException
Throws:
IOException

reReadPages

void reReadPages()
           throws IOException
Throws:
IOException

getPageN

public PdfDictionary getPageN(int pageNum)
Gets the dictionary that represents a page.

Parameters:
pageNum - the page number. 1 is the first
Returns:
the page dictionary

getPageNRelease

public PdfDictionary getPageNRelease(int pageNum)
Parameters:
pageNum -
Returns:
a dictionary object

getPageOrigRefRelease

public PRIndirectReference getPageOrigRefRelease(int pageNum)
Parameters:
pageNum -
Returns:
an indirect reference

getPageOrigRef

public PRIndirectReference getPageOrigRef(int pageNum)
Gets the page reference to this page.

Parameters:
pageNum - the page number. 1 is the first
Returns:
the page reference

keepPages

void keepPages()

releasePage

public void releasePage(int pageNum)
Parameters:
pageNum -

resetReleasePage

public void resetReleasePage()

insertPage

void insertPage(int pageNum,
                PRIndirectReference ref)

pushPageAttributes

private void pushPageAttributes(PdfDictionary nodePages)
Adds a PdfDictionary to the pageInh stack to keep track of the page attributes.

Parameters:
nodePages - a Pages dictionary

popPageAttributes

private void popPageAttributes()
Removes the last PdfDictionary that was pushed to the pageInh stack.


iteratePages

private void iteratePages(PRIndirectReference rpage)
                   throws IOException
Throws:
IOException

getSinglePage

protected PRIndirectReference getSinglePage(int n)

selectPages

private void selectPages(List<Integer> pagesToKeep)

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