Engines

Engines — Language-specific and rendering-system-specific processing

Types and Values

Object Hierarchy

    GObject
    ╰── PangoEngine
        ├── PangoEngineLang
        ╰── PangoEngineShape

Description

Pango used to have a module architecture in which the language-specific and render-system-specific components are provided by loadable modules.

This is no longer the case, and all the APIs related to modules and engines should not be used anymore.

Functions

script_engine_list ()

void
script_engine_list (PangoEngineInfo **engines,
                    int *n_engines);

script_engine_list has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]

Parameters

engines

location to store a pointer to an array of engines.

 

n_engines

location to store the number of elements in engines .

 

script_engine_init ()

void
script_engine_init (GTypeModule *module);

script_engine_init has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]

Parameters

module

a GTypeModule structure used to associate any GObject types created in this module with the module.

 

script_engine_exit ()

void
script_engine_exit (void);

script_engine_exit has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]


script_engine_create ()

PangoEngine *
script_engine_create (const char *id);

script_engine_create has been deprecated since version 1.38 and should not be used in newly-written code.

Do not use.

[skip]

Parameters

id

the ID of an engine as reported by script_engine_list.

 

Types and Values

struct PangoEngineInfo

struct PangoEngineInfo {
  const gchar *id;
  const gchar *engine_type;
  const gchar *render_type;
  PangoEngineScriptInfo *scripts;
  gint n_scripts;
};

PangoEngineInfo has been deprecated since version 1.38 and should not be used in newly-written code.

The PangoEngineInfo structure contains information about a particular engine. It contains the following fields:

Members

const gchar *id;

a unique string ID for the engine.

 

const gchar *engine_type;

a string identifying the engine type.

 

const gchar *render_type;

a string identifying the render type.

 

PangoEngineScriptInfo *scripts;

array of scripts this engine supports.

 

gint n_scripts;

number of items in scripts .

 

struct PangoEngineScriptInfo

struct PangoEngineScriptInfo {
  PangoScript script;
  const gchar *langs;
};

PangoEngineScriptInfo has been deprecated since version 1.38 and should not be used in newly-written code.

The PangoEngineScriptInfo structure contains information about how the shaper covers a particular script.

Members

PangoScript script;

a PangoScript. The value PANGO_SCRIPT_COMMON has the special meaning here of "all scripts"

 

const gchar *langs;

a semicolon separated list of languages that this engine handles for this script. This may be empty, in which case the engine is saying that it is a fallback choice for all languages for this range, but should not be used if another engine indicates that it is specific for the language for a given code point. An entry in this list of "*" indicates that this engine is specific to all languages for this range.

 

struct PangoEngine

struct PangoEngine;

PangoEngine has been deprecated since version 1.38 and should not be used in newly-written code.

PangoEngine is the base class for all types of language and script specific engines. It has no functionality by itself.


struct PangoEngineClass

struct PangoEngineClass {
};

PangoEngineClass has been deprecated since version 1.38 and should not be used in newly-written code.

Class structure for PangoEngine