com.lowagie.text.pdf.parser

Class ParsedText

java.lang.Object

com.lowagie.text.pdf.parser.ParsedTextImpl

com.lowagie.text.pdf.parser.ParsedText

All Implemented Interfaces:

TextAssemblyBuffer

public class ParsedText
extends ParsedTextImpl

Author:

dgd

Field Summary

Fields

Modifier and Type	Field and Description
protected GraphicsState	gs
protected PdfString	pdfText retain original PdfString as we need to distinguish between the code points contained there, and the stadnard Java (Unicode strings) that actually represent the content of this text.
protected Matrix	textToUserSpaceTransformMatrix

Method Summary

Modifier and Type	Method and Description
void	accumulate(TextAssembler p, String contextName) We pass ourselves to the assembler, which is a visitor, so that it can accumulate information on this text depending on its type.
void	assemble(TextAssembler p)
boolean	breakBefore()
protected String	decode(PdfString in) This constructor should only be called when the origin for text display is at (0,0) and the graphical state reflects all transformations of the baseline.
protected String	decode(String in) Decodes a Java String containing glyph ids encoded in the font's encoding, and determine the unicode equivalent
List<Word>	getAsPartialWords() Break this string if there are spaces within it.
FinalText	getFinalText(PdfReader reader, int page, TextAssembler assembler, boolean useMarkup)
String	getFontCodes()
String	getText() when returning the text from this item, we need to decode the code points we have.
float	getUnscaledTextWidth(GraphicsState gs)
boolean	shouldNotSplit()
String	toString()

Methods inherited from class com.lowagie.text.pdf.parser.ParsedTextImpl

getAscent, getBaseline, getDescent, getEndPoint, getSingleSpaceWidth, getStartPoint, getWidth

Methods inherited from class java.lang.Object

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

Field Detail

textToUserSpaceTransformMatrix

protected final Matrix textToUserSpaceTransformMatrix

gs

protected final GraphicsState gs

pdfText

protected PdfString pdfText

retain original PdfString as we need to distinguish between the code points contained there, and the stadnard Java (Unicode strings) that actually represent the content of this text.

Method Detail

decode

protected String decode(String in)

Decodes a Java String containing glyph ids encoded in the font's encoding, and determine the unicode equivalent

Parameters:

in - the String that needs to be decoded

Returns:

the decoded String

decode

protected String decode(PdfString in)

This constructor should only be called when the origin for text display is at (0,0) and the graphical state reflects all transformations of the baseline. This is in text space units. Decodes a PdfString (which will contain glyph ids encoded in the font's encoding) based on the active font, and determine the unicode equivalent

Parameters:

in - the String that needs to be encoded

Returns:

the encoded String

Since:

2.1.7

getAsPartialWords

public List<Word> getAsPartialWords()

Break this string if there are spaces within it. If so, we mark the new Words appropriately for later assembly. We are guaranteed that every space (internal word break) in this parsed text object will create a new word in the result of this method. We are not guaranteed that these Word objects are actually words until they have been assembled. The word following any space preserves that space in its string value, so that the assembler will not erroneously merge words that should be separate, regardless of the spacing.

Returns:

list of Word objects.

getUnscaledTextWidth

public float getUnscaledTextWidth(GraphicsState gs)

Parameters:

gs - graphic state including current transformation to page coordinates from text measurement

Returns:

the unscaled (i.e. in Text space) width of our text

accumulate

public void accumulate(TextAssembler p,
                       String contextName)

Description copied from interface: TextAssemblyBuffer

We pass ourselves to the assembler, which is a visitor, so that it can accumulate information on this text depending on its type. The result is calculated by a final "assembly" phase, after accumulation is done. This is because we may have non-contiguous items in a PDF text stream.

Parameters:

p - the assembler that is visiting us.

contextName - Name of the surrounding markup element/"context" if we're generating tagged output.

See Also:

TextAssemblyBuffer.accumulate(com.lowagie.text.pdf.parser.TextAssembler, String)

assemble

public void assemble(TextAssembler p)

Parameters:

p - we may pass ourselves to this assembler again during the final assembly process.

See Also:

TextAssemblyBuffer.assemble(com.lowagie.text.pdf.parser.TextAssembler)

getText

public String getText()

when returning the text from this item, we need to decode the code points we have.

Specified by:

getText in interface TextAssemblyBuffer

Overrides:

getText in class ParsedTextImpl

Returns:

the text to render

See Also:

ParsedTextImpl.getText()

getFontCodes

public String getFontCodes()

Returns:

a string whose characters represent code points in a possibly two-byte font

getFinalText

public FinalText getFinalText(PdfReader reader,
                              int page,
                              TextAssembler assembler,
                              boolean useMarkup)

Parameters:

reader - pdfReader that knows about our document. (size, etc. available here).

page - which page are we extracting text from.

assembler - Builds result by accepting content from text components of various sorts.

useMarkup - Should we generate tagged text, or just plain text.

Returns:

the final text ready to concatenate into result string.

See Also:

TextAssemblyBuffer.getFinalText(com.lowagie.text.pdf.PdfReader, int, com.lowagie.text.pdf.parser.TextAssembler, boolean)

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()

shouldNotSplit

public boolean shouldNotSplit()

Specified by:

shouldNotSplit in class ParsedTextImpl

Returns:

true if this was extracted from a string containing spaces, in which case, we assume further splitting is not needed.

See Also:

ParsedTextImpl.shouldNotSplit()

breakBefore

public boolean breakBefore()

Specified by:

breakBefore in class ParsedTextImpl

Returns:

See Also:

ParsedTextImpl.breakBefore()