PangoEngineLang
PangoEngineLang — Rendering-system independent script engines
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Stability Level
Unstable, unless otherwise indicated
Description
The language engines are rendering-system independent
engines that determine line, word, and character breaks for character strings.
These engines are used in pango_break().
Functions
PANGO_ENGINE_LANG_DEFINE_TYPE()
#define PANGO_ENGINE_LANG_DEFINE_TYPE(name, prefix, class_init, instance_init)
PANGO_ENGINE_LANG_DEFINE_TYPE has been deprecated since version 1.38 and should not be used in newly-written code.
Outputs the necessary code for GObject type registration for a
PangoEngineLang class defined in a module. Two static symbols
are defined.
static GType prefix_type;
static void prefix_register_type (GTypeModule module);
The prefix_register_type()
function should be called in your script_engine_init() function for
each type that your module implements, and then your script_engine_create()
function can create instances of the object as follows:
Types and Values
PangoEngineLang
typedef struct _PangoEngineLang PangoEngineLang;
PangoEngineLang has been deprecated since version 1.38 and should not be used in newly-written code.
The PangoEngineLang class is implemented by engines that
customize the rendering-system independent part of the
Pango pipeline for a particular script or language. For
instance, a custom PangoEngineLang could be provided for
Thai to implement the dictionary-based word boundary
lookups needed for that language.
struct PangoEngineLangClass
struct PangoEngineLangClass {
void (*script_break) (PangoEngineLang *engine,
const char *text,
int len,
PangoAnalysis *analysis,
PangoLogAttr *attrs,
int attrs_len);
};
PangoEngineLangClass has been deprecated since version 1.38 and should not be used in newly-written code.
Class structure for PangoEngineLang
PANGO_ENGINE_TYPE_LANG
#define PANGO_ENGINE_TYPE_LANG "PangoEngineLang"
PANGO_ENGINE_TYPE_LANG has been deprecated since version 1.38 and should not be used in newly-written code.
A string constant defining the engine type for language engines.
These engines derive from PangoEngineLang.