com.lowagie.text.pdf
Class PdfReader.PageRefs

java.lang.Object
  com.lowagie.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	pageInh stack to which pages dictionaries are pushed to keep track of the current page attributes
private PdfReader	reader
private ArrayList	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 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 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 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 pagesToKeep)