Package com.openhtmltopdf.java2d

Class Java2DTextRenderer

java.lang.Object

com.openhtmltopdf.java2d.Java2DTextRenderer

All Implemented Interfaces:

TextRenderer

public class Java2DTextRenderer
extends Object
implements TextRenderer

Renders to a Graphics2D instance.

Author:

Joshua Marinacci, Torbjoern Gannholm

Field Summary

Fields

Modifier and Type	Field	Description
protected Object	antiAliasRenderingHint
protected Object	fractionalFontMetricsHint
protected float	scale
protected float	threshold

Constructor Summary

Constructors

Constructor	Description
Java2DTextRenderer()

Method Summary

Modifier and Type	Method	Description
void	drawString(OutputDevice outputDevice, String string, float x, float y)
void	drawString(OutputDevice outputDevice, String string, float x, float y, JustificationInfo info)	Draws a justified string.
float	getFontScale()
FSFontMetrics	getFSFontMetrics(FontContext fc, FSFont font, String string)
float[]	getGlyphPositions(OutputDevice outputDevice, FSFont font, String text)	This method gets glyph positions for purposes of selecting text.
Object	getRenderingHints()	If anti-alias text is enabled, the value from RenderingHints to use for AA smoothing in Java2D.
int	getSmoothingLevel()
int	getWidth(FontContext fc, FSFont font, String string)
void	setFontScale(float scale)
void	setRenderingHints(Object renderingHints)	If anti-alias text is enabled, the value from RenderingHints to use for AA smoothing in Java2D.
void	setSmoothingLevel(int level)
void	setSmoothingThreshold(float fontsize)
void	setup(FontContext context)
void	setup(FontContext fontContext, BidiReorderer bidiReorderer)

Methods inherited from class java.lang.Object

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

Field Detail

scale

protected float scale

threshold

protected float threshold

antiAliasRenderingHint

protected Object antiAliasRenderingHint

fractionalFontMetricsHint

protected Object fractionalFontMetricsHint

Constructor Detail

Java2DTextRenderer

public Java2DTextRenderer()

Method Detail

drawString

public void drawString(OutputDevice outputDevice,
                       String string,
                       float x,
                       float y)

Specified by:

drawString in interface TextRenderer

drawString

public void drawString(OutputDevice outputDevice,
                       String string,
                       float x,
                       float y,
                       JustificationInfo info)

Draws a justified string. TODO: Font fallback.

Specified by:

drawString in interface TextRenderer

setup

public void setup(FontContext fontContext,
                  BidiReorderer bidiReorderer)

Parameters:

bidiReorderer -

setFontScale

public void setFontScale(float scale)

Specified by:

setFontScale in interface TextRenderer

setSmoothingThreshold

public void setSmoothingThreshold(float fontsize)

Specified by:

setSmoothingThreshold in interface TextRenderer

setSmoothingLevel

public void setSmoothingLevel(int level)

Specified by:

setSmoothingLevel in interface TextRenderer

getFSFontMetrics

public FSFontMetrics getFSFontMetrics(FontContext fc,
                                      FSFont font,
                                      String string)

Specified by:

getFSFontMetrics in interface TextRenderer

getWidth

public int getWidth(FontContext fc,
                    FSFont font,
                    String string)

Specified by:

getWidth in interface TextRenderer

getFontScale

public float getFontScale()

Specified by:

getFontScale in interface TextRenderer

getSmoothingLevel

public int getSmoothingLevel()

Specified by:

getSmoothingLevel in interface TextRenderer

getRenderingHints

public Object getRenderingHints()

If anti-alias text is enabled, the value from RenderingHints to use for AA smoothing in Java2D. Defaults to RenderingHints.VALUE_TEXT_ANTIALIAS_ON.

Returns:

Current AA rendering hint

setRenderingHints

public void setRenderingHints(Object renderingHints)

If anti-alias text is enabled, the value from RenderingHints to use for AA smoothing in Java2D. Defaults to RenderingHints.VALUE_TEXT_ANTIALIAS_ON.

Parameters:

renderingHints - rendering hint for AA smoothing in Java2D

getGlyphPositions

public float[] getGlyphPositions(OutputDevice outputDevice,
                                 FSFont font,
                                 String text)

This method gets glyph positions for purposes of selecting text. WE are not too worried about selecting text at this point so we just use the first font available.

setup

public void setup(FontContext context)

Specified by:

setup in interface TextRenderer