Module com.github.librepdf.openpdf.parent

Package org.openpdf.render

Class LineMetricsAdapter

java.lang.Object

org.openpdf.render.LineMetricsAdapter

All Implemented Interfaces:

FSFontMetrics

public class LineMetricsAdapter
extends Object
implements FSFontMetrics

A note on this class: What we really want is a FontMetrics2D object (i.e. font metrics with float precision). Unfortunately, it doesn't seem the JDK provides this. However, looking at the JDK code, it appears the metrics contained in the LineMetrics are actually the metrics of the font, not the metrics of the line (and empirically strings of "X" and "j" return the same value for getAscent()). So... for now we use LineMetrics for font metrics.

Constructor Summary

Constructors

Constructor	Description
LineMetricsAdapter(LineMetrics lineMetrics)

Method Summary

Modifier and Type	Method	Description
float	getAscent()
float	getDescent()	In keeping with the JDK LineMetrics convention, this number is positive for values below the baseline.
float	getStrikethroughOffset()
float	getStrikethroughThickness()
float	getUnderlineOffset()	In keeping with the JDK LineMetrics convention, this number is positive for values below the baseline.
float	getUnderlineThickness()

Methods inherited from class java.lang.Object

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

Constructor Details

LineMetricsAdapter

public LineMetricsAdapter(LineMetrics lineMetrics)

Method Details

getAscent

public float getAscent()

Specified by:

getAscent in interface FSFontMetrics

getDescent

public float getDescent()

Description copied from interface: FSFontMetrics

In keeping with the JDK LineMetrics convention, this number is positive for values below the baseline.

Specified by:

getDescent in interface FSFontMetrics

getStrikethroughOffset

public float getStrikethroughOffset()

Specified by:

getStrikethroughOffset in interface FSFontMetrics

getStrikethroughThickness

public float getStrikethroughThickness()

Specified by:

getStrikethroughThickness in interface FSFontMetrics

getUnderlineOffset

public float getUnderlineOffset()

Description copied from interface: FSFontMetrics

In keeping with the JDK LineMetrics convention, this number is positive for values below the baseline.

Specified by:

getUnderlineOffset in interface FSFontMetrics

getUnderlineThickness

public float getUnderlineThickness()

Specified by:

getUnderlineThickness in interface FSFontMetrics