Class LineHeightHelper

java.lang.Object

com.itextpdf.layout.renderer.LineHeightHelper

class LineHeightHelper
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ASCENDER_INDEX
private static final float	DEFAULT_LINE_HEIGHT_COEFF
static final int	DESCENDER_INDEX
static final int	LEADING_INDEX
static final int	XHEIGHT_INDEX

Constructor Summary

Constructors

Modifier	Constructor	Description
private	LineHeightHelper()

Method Summary

Modifier and Type	Method	Description
(package private) static float	calculateLineHeight(AbstractRenderer renderer)
(package private) static float[]	getActualAscenderDescender(AbstractRenderer renderer)	Get actual ascender, descender.
(package private) static float[]	getActualFontInfo(AbstractRenderer renderer)	Get actual ascender, descender, xHeight and leading.
(package private) static float[]	getFontAscenderDescenderNormalized(AbstractRenderer renderer)

Methods inherited from class Object

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

Field Details

ASCENDER_INDEX

public static final int ASCENDER_INDEX

See Also:

• Constant Field Values

DESCENDER_INDEX

public static final int DESCENDER_INDEX

See Also:

• Constant Field Values

XHEIGHT_INDEX

public static final int XHEIGHT_INDEX

See Also:

• Constant Field Values

LEADING_INDEX

public static final int LEADING_INDEX

See Also:

• Constant Field Values

DEFAULT_LINE_HEIGHT_COEFF

private static final float DEFAULT_LINE_HEIGHT_COEFF

See Also:

• Constant Field Values

Constructor Details

LineHeightHelper

private LineHeightHelper()

Method Details

getActualAscenderDescender

static float[] getActualAscenderDescender(AbstractRenderer renderer)

Get actual ascender, descender.

Parameters:

renderer - the renderer to retrieve the ascender and descender from

Returns:

an array containing in this order actual ascender

getActualFontInfo

static float[] getActualFontInfo(AbstractRenderer renderer)

Get actual ascender, descender, xHeight and leading.

Parameters:

renderer - the renderer to retrieve the font info from

Returns:

an array containing in this order actual ascender, descender, xHeight and leading

getFontAscenderDescenderNormalized

static float[] getFontAscenderDescenderNormalized(AbstractRenderer renderer)

calculateLineHeight

static float calculateLineHeight(AbstractRenderer renderer)