com.tsgrp.opencontent.universal.pdf

Class LocationTextExtractionStrategy

java.lang.Object

com.tsgrp.opencontent.universal.pdf.LocationTextExtractionStrategy

All Implemented Interfaces:

com.itextpdf.text.pdf.parser.RenderListener, com.itextpdf.text.pdf.parser.TextExtractionStrategy

public class LocationTextExtractionStrategy
extends java.lang.Object
implements com.itextpdf.text.pdf.parser.TextExtractionStrategy

Development preview - this class (and all of the parser classes) are still experiencing heavy development, and are subject to change both behavior and interface.
A text extraction renderer that keeps track of relative position of text on page The resultant text will be relatively consistent with the physical layout that most PDF files have on screen.
This renderer keeps track of the orientation and distance (both perpendicular and parallel) to the unit vector of the orientation. Text is ordered by orientation, then perpendicular, then parallel distance. Text with the same perpendicular distance, but different parallel distance is treated as being on the same line.
This renderer also uses a simple strategy based on the font metrics to determine if a blank space should be inserted into the output.

Since:

5.0.2

Constructor Summary

Constructors

Constructor and Description
LocationTextExtractionStrategy() Creates a new text extraction renderer.

Method Summary

Modifier and Type	Method and Description
void	beginTextBlock()
void	endTextBlock()
java.util.ArrayList<com.itextpdf.text.Rectangle>	getRectangles()
java.lang.String	getResultantText() Returns the result so far.
void	renderImage(com.itextpdf.text.pdf.parser.ImageRenderInfo renderInfo) no-op method - this renderer isn't interested in image events
void	renderText(com.itextpdf.text.pdf.parser.TextRenderInfo renderInfo)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LocationTextExtractionStrategy

public LocationTextExtractionStrategy()

Creates a new text extraction renderer.

Method Detail

beginTextBlock

public void beginTextBlock()

Specified by:

beginTextBlock in interface com.itextpdf.text.pdf.parser.RenderListener

See Also:

RenderListener.beginTextBlock()

endTextBlock

public void endTextBlock()

Specified by:

endTextBlock in interface com.itextpdf.text.pdf.parser.RenderListener

See Also:

RenderListener.endTextBlock()

getRectangles

public java.util.ArrayList<com.itextpdf.text.Rectangle> getRectangles()

getResultantText

public java.lang.String getResultantText()

Returns the result so far.

Specified by:

getResultantText in interface com.itextpdf.text.pdf.parser.TextExtractionStrategy

Returns:

a String with the resulting text.

renderText

public void renderText(com.itextpdf.text.pdf.parser.TextRenderInfo renderInfo)

Specified by:

renderText in interface com.itextpdf.text.pdf.parser.RenderListener

See Also:

RenderListener.renderText(com.itextpdf.text.pdf.parser.TextRenderInfo)

renderImage

public void renderImage(com.itextpdf.text.pdf.parser.ImageRenderInfo renderInfo)

no-op method - this renderer isn't interested in image events

Specified by:

renderImage in interface com.itextpdf.text.pdf.parser.RenderListener

Since:

5.0.1

See Also:

RenderListener.renderImage(com.itextpdf.text.pdf.parser.ImageRenderInfo)