it.stefanochizzolini.clown.documents.contents.objects
Class ShowText

java.lang.Object
  it.stefanochizzolini.clown.documents.contents.objects.ContentObject
      it.stefanochizzolini.clown.documents.contents.objects.Operation
          it.stefanochizzolini.clown.documents.contents.objects.ShowText

Direct Known Subclasses:

ShowAdjustedText, ShowSimpleText, ShowTextToNextLine

public abstract class ShowText
extends Operation

Abstract 'show a text string' operation [PDF:1.6:5.3.2].

Since:

0.0.8

Version:

0.0.8

Author:

Stefano Chizzolini (http://www.stefanochizzolini.it)

Nested Class Summary

static interface

ShowText.IScanner

Field Summary

Fields inherited from class it.stefanochizzolini.clown.documents.contents.objects.Operation

operands, operator

Constructor Summary

protected	ShowText(String operator)
protected	ShowText(String operator, List<PdfDirectObject> operands)
protected	ShowText(String operator, PdfDirectObject... operands)

Method Summary

void	applyTo(ContentScanner.GraphicsState state) Applies the object's state to the specified graphics state.
abstract byte[]	getText() Gets the encoded text.
List<Object>	getValue() Gets the encoded text elements along with their adjustments.
void	scan(ContentScanner.GraphicsState state, ShowText.IScanner textScanner) Executes scanning on this operation.
abstract void	setText(byte[] value)
void	setValue(List<Object> value)

Methods inherited from class it.stefanochizzolini.clown.documents.contents.objects.Operation

get, getOperands, getOperator, toString, writeTo

Methods inherited from class java.lang.Object

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

Constructor Detail

ShowText

protected ShowText(String operator)

ShowText

protected ShowText(String operator,
                   PdfDirectObject... operands)

ShowText

protected ShowText(String operator,
                   List<PdfDirectObject> operands)

Method Detail

applyTo

public void applyTo(ContentScanner.GraphicsState state)

Description copied from class: ContentObject

Applies the object's state to the specified graphics state.

Overrides:

applyTo in class ContentObject

Parameters:

state - Content scanner graphics state.

getText

public abstract byte[] getText()

Gets the encoded text.

Remarks

Text is expressed in native encoding: to resolve it to Unicode, pass it to the decode method of the corresponding font.

getValue

public List<Object> getValue()

Gets the encoded text elements along with their adjustments.

Remarks

Text is expressed in native encoding: to resolve it to Unicode, pass it to the decode method of the corresponding font.

Returns:

Each element can be either a byte array or a number: if it's a byte array (encoded text), the operator shows text glyphs; if it's a number (glyph adjustment), the operator inversely adjusts the next glyph position by that amount (that is: a positive value reduces the distance between consecutive glyphs).

scan

public void scan(ContentScanner.GraphicsState state,
                 ShowText.IScanner textScanner)

Executes scanning on this operation.

Parameters:

state - Graphics state context.

textScanner - Scanner to be notified about text contents. In case it's null, the operation is applied to the graphics state context.

setText

public abstract void setText(byte[] value)

See Also:

getText()

setValue

public void setValue(List<Object> value)

See Also:

getValue()