org.axsl.font

Interface FontOptions

public interface FontOptions

A collection of font options made available to a Font or FontUse implementation to provide information about how the client wants to use the font. The font may or may not be able to comply with any or all of the requests. For example, not all fonts support ligatures, and some that do may not support all of the ligatures requested.

Field Summary

Fields

Modifier and Type	Field and Description
static FontOptions	DEFAULT Immutable implementation that can be used as a default.

Method Summary

Modifier and Type	Method and Description
boolean	anySubsitutionActive() Indicates whether any substitution features are active.
boolean	isFeatureActive(java.lang.String feature) Indicates whether a particular OpenType feature is active.
boolean	isKerning() Indicates whether kerning is active.

Field Detail

DEFAULT

static final FontOptions DEFAULT

Immutable implementation that can be used as a default.

Method Detail

isKerning

boolean isKerning()

Indicates whether kerning is active.

Returns:

True if and only if kerning is active.

isFeatureActive

boolean isFeatureActive(java.lang.String feature)

Indicates whether a particular OpenType feature is active.

Parameters:

feature - The feature being queried. (Developer Note: It is tempting to make this a typesafe enumeration, but, because font creators can create custom feature tags, it is safer to make this a String).

Returns:

True if and only if feature is active.

anySubsitutionActive

boolean anySubsitutionActive()

Indicates whether any substitution features are active. Client code can check each feature using isFeatureActive(String), but this method is intended to provide a more efficient means, as implementations can cache results or otherwise enhance performance.

Returns:

True if ther are any substitution features active.