org.pentaho.reporting.libraries.fonts.registry

Class EmptyFontMetrics

java.lang.Object

org.pentaho.reporting.libraries.fonts.registry.EmptyFontMetrics

All Implemented Interfaces:

FontMetrics

public class EmptyFontMetrics
extends Object
implements FontMetrics

An placeholder metrics for buggy fonts.

Author:

Thomas Morgner

Constructor Summary

Constructors

Constructor and Description
EmptyFontMetrics(FontNativeContext record, double baseWidth, double baseHeight)
EmptyFontMetrics(FontNativeContext record, long baseWidth, long baseHeight)

Method Summary

Methods

Modifier and Type	Method and Description
long	getAscent() From the baseline to the
BaselineInfo	getBaselines(int c, BaselineInfo info) Baselines are defined for scripts, not glyphs.
long	getCharWidth(int codePoint)
long	getDescent() The font descent is the distance from the font's baseline to the bottom of most alphanumeric characters.
long	getItalicAngle()
long	getKerning(int previous, int codePoint)
long	getLeading() The standard leading, or interline spacing, is the logical amount of space to be reserved between the descent of one line of text and the ascent of the next line.
long	getMaxAscent()
long	getMaxCharAdvance()
long	getMaxDescent()
long	getMaxHeight()
FontNativeContext	getNativeContext()
long	getOverlinePosition()
long	getStrikeThroughPosition()
long	getUnderlinePosition()
long	getXHeight() The height of the lowercase 'x'.
boolean	isUniformFontMetrics() Is it guaranteed that the font always returns the same baseline info objct?

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyFontMetrics

public EmptyFontMetrics(FontNativeContext record,
                double baseWidth,
                double baseHeight)

EmptyFontMetrics

public EmptyFontMetrics(FontNativeContext record,
                long baseWidth,
                long baseHeight)

Method Detail

isUniformFontMetrics

public boolean isUniformFontMetrics()

Is it guaranteed that the font always returns the same baseline info objct?

Specified by:

isUniformFontMetrics in interface FontMetrics

Returns:

true, if the baseline info in question is always the same, false otherwise.

getAscent

public long getAscent()

From the baseline to the

Specified by:

getAscent in interface FontMetrics

Returns:

getDescent

public long getDescent()

Description copied from interface: FontMetrics

The font descent is the distance from the font's baseline to the bottom of most alphanumeric characters. The descent is always a positive number.

Specified by:

getDescent in interface FontMetrics

Returns:

the descent.

getLeading

public long getLeading()

Description copied from interface: FontMetrics

The standard leading, or interline spacing, is the logical amount of space to be reserved between the descent of one line of text and the ascent of the next line. The height metric is calculated to include this extra space. The leading is always a positive number.

Specified by:

getLeading in interface FontMetrics

Returns:

the leading.

getXHeight

public long getXHeight()

The height of the lowercase 'x'. This is used as hint, which size the lowercase characters will have.

Specified by:

getXHeight in interface FontMetrics

Returns:

getOverlinePosition

public long getOverlinePosition()

Specified by:

getOverlinePosition in interface FontMetrics

getUnderlinePosition

public long getUnderlinePosition()

Specified by:

getUnderlinePosition in interface FontMetrics

getStrikeThroughPosition

public long getStrikeThroughPosition()

Specified by:

getStrikeThroughPosition in interface FontMetrics

getMaxAscent

public long getMaxAscent()

Specified by:

getMaxAscent in interface FontMetrics

getMaxDescent

public long getMaxDescent()

Specified by:

getMaxDescent in interface FontMetrics

getMaxHeight

public long getMaxHeight()

Specified by:

getMaxHeight in interface FontMetrics

getMaxCharAdvance

public long getMaxCharAdvance()

Specified by:

getMaxCharAdvance in interface FontMetrics

getCharWidth

public long getCharWidth(int codePoint)

Specified by:

getCharWidth in interface FontMetrics

getKerning

public long getKerning(int previous,
              int codePoint)

Specified by:

getKerning in interface FontMetrics

getBaselines

public BaselineInfo getBaselines(int c,
                        BaselineInfo info)

Baselines are defined for scripts, not glyphs. A glyph carries script information most of the time (unless it is a neutral characters or just weird).

Specified by:

getBaselines in interface FontMetrics

Parameters:

c -

Returns:

getItalicAngle

public long getItalicAngle()

Specified by:

getItalicAngle in interface FontMetrics

getNativeContext

public FontNativeContext getNativeContext()

Specified by:

getNativeContext in interface FontMetrics