Class NativeTextPainter

java.lang.Object

org.apache.batik.bridge.BasicTextPainter

org.apache.batik.bridge.StrokingTextPainter

org.apache.fop.svg.NativeTextPainter

All Implemented Interfaces:

org.apache.batik.bridge.TextPainter

Direct Known Subclasses:

PDFTextPainter, PSTextPainter

public abstract class NativeTextPainter
extends org.apache.batik.bridge.StrokingTextPainter

Abstract base class for text painters that use specialized text commands native to an output format to render text.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.batik.bridge.StrokingTextPainter

org.apache.batik.bridge.StrokingTextPainter.TextChunk, org.apache.batik.bridge.StrokingTextPainter.TextRun

Nested classes/interfaces inherited from class org.apache.batik.bridge.BasicTextPainter

org.apache.batik.bridge.BasicTextPainter.BasicMark

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.apache.batik.bridge.TextLayoutFactory	COMPLEX_SCRIPT_TEXT_LAYOUT_FACTORY
private static final boolean	DEBUG
protected Font	font
protected final org.apache.batik.bridge.FontFamilyResolver	fontFamilyResolver
protected final FontInfo	fontInfo	the font collection
protected static final org.apache.commons.logging.Log	log	the logger for this class
protected org.apache.batik.gvt.text.TextPaintInfo	tpi

Fields inherited from class org.apache.batik.bridge.StrokingTextPainter

ADJUST_ALL, ADJUST_SPACING, ALT_GLYPH_HANDLER, ANCHOR_TYPE, BIDI_LEVEL, FLOW_PARAGRAPH, FLOW_REGIONS, GVT_FONT, GVT_FONTS, PAINT_INFO, singleton, TEXT_COMPOUND_ID, TEXTPATH, WRITING_MODE, WRITING_MODE_RTL, WRITING_MODE_TTB, XPOS, YPOS

Fields inherited from class org.apache.batik.bridge.BasicTextPainter

aaOffFontRenderContext, fontRenderContext

Constructor Summary

Constructors

Constructor	Description
NativeTextPainter(FontInfo fontInfo)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
protected abstract void	beginTextObject()
protected abstract void	clip(Shape clip)
protected CharSequence	collectCharacters(AttributedCharacterIterator runaci)	Collects all characters from an AttributedCharacterIterator.
List	computeTextRuns(org.apache.batik.bridge.TextNode node, AttributedCharacterIterator nodeACI, AttributedCharacterIterator[] chunkACIs)
protected abstract void	endTextObject()
protected org.apache.batik.bridge.FontFamilyResolver	getFontFamilyResolver()
protected AffineTransform	getLocalTransform(Point2D glyphPos, AffineTransform glyphTransform)
protected org.apache.batik.bridge.TextLayoutFactory	getTextLayoutFactory()
protected Set	getTextRunBoundaryAttributes()
protected abstract boolean	isSupported(Graphics2D g2d)	Indicates whether the given Graphics2D instance if compatible with this text painter implementation.
protected final void	logCharacter(char ch, org.apache.batik.bridge.TextSpanLayout layout, int index, boolean visibleChar)
protected final void	logTextRun(org.apache.batik.bridge.StrokingTextPainter.TextRun textRun)
protected final void	paintTextRun(org.apache.batik.bridge.StrokingTextPainter.TextRun textRun, Graphics2D g2d)	Paints a single text run.
protected void	paintTextRuns(List textRuns, Graphics2D g2d)
protected abstract void	positionGlyph(Point2D prevPos, Point2D glyphPos, boolean reposition)
protected abstract void	preparePainting(Graphics2D g2d)
private List	reorderRuns(List runs, int level)
protected List	reorderTextRuns(org.apache.batik.bridge.StrokingTextPainter.TextChunk chunk, List runs)
protected abstract void	restoreGraphicsState()
private void	reverseGlyphs(List runs, boolean mirror)
private List	reverseRuns(List runs, int s, int e)
protected abstract void	saveGraphicsState()
protected abstract void	setInitialTransform(AffineTransform transform)
protected abstract void	writeGlyph(char glyph, AffineTransform transform)
protected void	writeGlyphs(FOPGVTGlyphVector gv, GeneralPath debugShapes)

Methods inherited from class org.apache.batik.bridge.StrokingTextPainter

adjustChunkOffsets, computeTextRuns, createModifiedACIForFontMatching, getBounds2D, getDecorationOutline, getDecorationStrokeOutline, getHighlightShape, getInstance, getMark, getOutline, getSelected, getTextChunk, getTextChunkACIs, getTextRuns, hitTest, paint, paintDecorations, printAttrs, selectFirst, selectLast

Methods inherited from class org.apache.batik.bridge.BasicTextPainter

getGeometryBounds, selectAt, selectTo

Methods inherited from class Object

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

Field Details

log

protected static final org.apache.commons.logging.Log log

the logger for this class

DEBUG

private static final boolean DEBUG

See Also:

• Constant Field Values

fontInfo

protected final FontInfo fontInfo

the font collection

fontFamilyResolver

protected final org.apache.batik.bridge.FontFamilyResolver fontFamilyResolver

font

protected Font font

tpi

protected org.apache.batik.gvt.text.TextPaintInfo tpi

COMPLEX_SCRIPT_TEXT_LAYOUT_FACTORY

private static final org.apache.batik.bridge.TextLayoutFactory COMPLEX_SCRIPT_TEXT_LAYOUT_FACTORY

Constructor Details

NativeTextPainter

public NativeTextPainter(FontInfo fontInfo)

Creates a new instance.

Parameters:

fontInfo - the font collection

Method Details

isSupported

protected abstract boolean isSupported(Graphics2D g2d)

Indicates whether the given Graphics2D instance if compatible with this text painter implementation.

Parameters:

g2d - the instance to check

Returns:

true if the instance is compatible.

paintTextRun

protected final void paintTextRun(org.apache.batik.bridge.StrokingTextPainter.TextRun textRun,
 Graphics2D g2d)
                           throws IOException

Paints a single text run.

Parameters:

textRun - the text run

g2d - the target Graphics2D instance

Throws:

IOException - if an I/O error occurs while rendering the text

writeGlyphs

protected void writeGlyphs(FOPGVTGlyphVector gv,
 GeneralPath debugShapes)
                    throws IOException

Throws:

IOException

getLocalTransform

protected AffineTransform getLocalTransform(Point2D glyphPos,
 AffineTransform glyphTransform)

paintTextRuns

protected void paintTextRuns(List textRuns,
 Graphics2D g2d)

Overrides:

paintTextRuns in class org.apache.batik.bridge.StrokingTextPainter

collectCharacters

protected CharSequence collectCharacters(AttributedCharacterIterator runaci)

Collects all characters from an AttributedCharacterIterator.

Parameters:

runaci - the character iterator

Returns:

the characters

computeTextRuns

public List computeTextRuns(org.apache.batik.bridge.TextNode node,
 AttributedCharacterIterator nodeACI,
 AttributedCharacterIterator[] chunkACIs)

Overrides:

computeTextRuns in class org.apache.batik.bridge.StrokingTextPainter

getTextRunBoundaryAttributes

protected Set getTextRunBoundaryAttributes()

Overrides:

getTextRunBoundaryAttributes in class org.apache.batik.bridge.StrokingTextPainter

reorderTextRuns

protected List reorderTextRuns(org.apache.batik.bridge.StrokingTextPainter.TextChunk chunk,
 List runs)

Overrides:

reorderTextRuns in class org.apache.batik.bridge.StrokingTextPainter

reorderRuns

private List reorderRuns(List runs,
 int level)

reverseRuns

private List reverseRuns(List runs,
 int s,
 int e)

reverseGlyphs

private void reverseGlyphs(List runs,
 boolean mirror)

preparePainting

protected abstract void preparePainting(Graphics2D g2d)

saveGraphicsState

protected abstract void saveGraphicsState()
                                   throws IOException

Throws:

IOException

restoreGraphicsState

protected abstract void restoreGraphicsState()
                                      throws IOException

Throws:

IOException

setInitialTransform

protected abstract void setInitialTransform(AffineTransform transform)
                                     throws IOException

Throws:

IOException

clip

protected abstract void clip(Shape clip)
                      throws IOException

Throws:

IOException

beginTextObject

protected abstract void beginTextObject()
                                 throws IOException

Throws:

IOException

endTextObject

protected abstract void endTextObject()
                               throws IOException

Throws:

IOException

positionGlyph

protected abstract void positionGlyph(Point2D prevPos,
 Point2D glyphPos,
 boolean reposition)

writeGlyph

protected abstract void writeGlyph(char glyph,
 AffineTransform transform)
                            throws IOException

Throws:

IOException

logTextRun

protected final void logTextRun(org.apache.batik.bridge.StrokingTextPainter.TextRun textRun)

logCharacter

protected final void logCharacter(char ch,
 org.apache.batik.bridge.TextSpanLayout layout,
 int index,
 boolean visibleChar)

Parameters:

ch - a character

layout - a text span layout

index - an index

visibleChar - visible character flag

getFontFamilyResolver

protected org.apache.batik.bridge.FontFamilyResolver getFontFamilyResolver()

Overrides:

getFontFamilyResolver in class org.apache.batik.bridge.StrokingTextPainter

getTextLayoutFactory

protected org.apache.batik.bridge.TextLayoutFactory getTextLayoutFactory()

Overrides:

getTextLayoutFactory in class org.apache.batik.bridge.BasicTextPainter