Class

PangoOTRuleset

Description [src]

final class PangoOT.Ruleset : GObject.Object {
  /* No available fields */
}

The PangoOTRuleset structure holds a set of features selected from the tables in an OpenType font.

A feature is an operation such as adjusting glyph positioning that should be applied to a text feature such as a certain type of accent.

A PangoOTRuleset is created with pango_ot_ruleset_new(), features are added to it with pango_ot_ruleset_add_feature(), then it is applied to a PangoGlyphString with pango_ot_ruleset_position().

Ancestors

Constructors

pango_ot_ruleset_new

Creates a new PangoOTRuleset for the given OpenType info.

pango_ot_ruleset_new_for

Creates a new PangoOTRuleset for the given OpenType info, script, and language.

Available since: 1.18

pango_ot_ruleset_new_from_description

Creates a new PangoOTRuleset for the given OpenType info and matching the given ruleset description.

Available since: 1.18

Functions

pango_ot_ruleset_get_for_description

Returns a ruleset for the given OpenType info and ruleset description.

Available since: 1.18

Instance methods

pango_ot_ruleset_add_feature

Adds a feature to the ruleset.

pango_ot_ruleset_get_feature_count

Gets the number of GSUB and GPOS features in the ruleset.

Available since: 1.18

pango_ot_ruleset_maybe_add_feature

This is a convenience function that first tries to find the feature using pango_ot_info_find_feature() and the ruleset script and language passed to pango_ot_ruleset_new_for() and if the feature is found, adds it to the ruleset.

Available since: 1.18

pango_ot_ruleset_maybe_add_features

This is a convenience function that for each feature in the feature map array features converts the feature name to a PangoOTTag feature tag using PANGO_OT_TAG_MAKE() and calls pango_ot_ruleset_maybe_add_feature() on it.

Available since: 1.18

pango_ot_ruleset_position

Performs the OpenType GPOS positioning on buffer using the features in ruleset.

Available since: 1.4

pango_ot_ruleset_substitute

Performs the OpenType GSUB substitution on buffer using the features in ruleset.

Available since: 1.4

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Signals

Signals inherited from GObject (1)
GObject.Object::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.