com.openhtmltopdf.render

Interface FSFontMetrics

All Known Implementing Classes:

LineMetricsAdapter

public interface FSFontMetrics

Method Summary

Modifier and Type	Method and Description
float	getAscent()
float	getDescent() In keeping with the JDK LineMetrics convention, this number is positive for values below the baseline.
default float	getLineGap() The extra space to leave between consecutive lines (the line gap, also known as external leading), on top of the ascent and descent reported here.
float	getStrikethroughOffset()
float	getStrikethroughThickness()
default float	getTypoDescent() The distance from the baseline to the bottom of the font's em box (its typographic descent).
float	getUnderlineOffset() In keeping with the JDK LineMetrics convention, this number is positive for values below the baseline.
float	getUnderlineThickness()

Method Detail

getAscent

float getAscent()

getDescent

float getDescent()

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

getStrikethroughOffset

float getStrikethroughOffset()

getStrikethroughThickness

float getStrikethroughThickness()

getUnderlineOffset

float getUnderlineOffset()

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

getUnderlineThickness

float getUnderlineThickness()

getTypoDescent

default float getTypoDescent()

The distance from the baseline to the bottom of the font's em box (its typographic descent). Positive for values below the baseline, in keeping with the JDK LineMetrics convention. Used for text-underline-position: under.

getLineGap

default float getLineGap()

The extra space to leave between consecutive lines (the line gap, also known as external leading), on top of the ascent and descent reported here. Browsers add it when computing line-height: normal, so we do too. Zero when no font asks for one.

Where several fonts are in play the ascent and descent above are the largest of each, which taken together can already be more than any one font asks for a line; this is only what is missing on top of them.