Edje External

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Edje External
Edje

This group discusses functions of the external section of Edje. More...

## Modules
| Edje Development of External Plugins
| Functions to register, unregister EXTERNAL types and develop the plugins.

## Data Structures
struct | _Edje_External_Param
| Struct that holds parameters for parts of type EXTERNAL. More...
struct | _Edje_External_Param_Info
| Struct holding information about an EXTERNAL part's parameters. More...
struct | _Edje_External_Type
| Information about an external type to be used. More...
struct | _Edje_External_Type_Info
| Convenience struct used to mass-register types of EXTERNAL objects. More...

## Macros
#define | EDJE_EXTERNAL_INT_UNSET INT_MAX
| Helper macro to indicate an EXTERNAL's integer parameter is undefined.
#define | EDJE_EXTERNAL_DOUBLE_UNSET DBL_MAX
| Helper macro to indicate an EXTERNAL's double parameter is undefined.
#define | EDJE_EXTERNAL_PARAM_INFO_INT_FULL_FLAGS(name, def, min, max, step, flags) {name, EDJE_EXTERNAL_PARAM_TYPE_INT, flags, {.i = {def, min, max, step}}}
#define | EDJE_EXTERNAL_PARAM_INFO_DOUBLE_FULL_FLAGS(name, def, min, max, step, flags) {name, EDJE_EXTERNAL_PARAM_TYPE_DOUBLE, flags, {.d = {def, min, max, step}}}
#define | EDJE_EXTERNAL_PARAM_INFO_STRING_FULL_FLAGS(name, def, accept, deny, flags) {name, EDJE_EXTERNAL_PARAM_TYPE_STRING, flags, {.s = {def, accept, deny}}}
#define | EDJE_EXTERNAL_PARAM_INFO_BOOL_FULL_FLAGS(name, def, false_str, true_str, flags) {name, EDJE_EXTERNAL_PARAM_TYPE_BOOL, flags, {.b = {def, false_str, true_str}}}
#define | EDJE_EXTERNAL_PARAM_INFO_CHOICE_FULL_FLAGS(name, def, choices, flags) {name, EDJE_EXTERNAL_PARAM_TYPE_CHOICE, flags, {.c = {def, choices, NULL, NULL}}}
#define | EDJE_EXTERNAL_PARAM_INFO_CHOICE_DYNAMIC_FULL_FLAGS(name, def_get, query, flags) {name, EDJE_EXTERNAL_PARAM_TYPE_CHOICE, flags, {.c = {NULL, NULL, def_get, query}}}
#define | EDJE_EXTERNAL_PARAM_INFO_INT_FULL(name, def, min, max, step) EDJE_EXTERNAL_PARAM_INFO_INT_FULL_FLAGS(name, def, min, max, step, EDJE_EXTERNAL_PARAM_FLAGS_REGULAR)
#define | EDJE_EXTERNAL_PARAM_INFO_DOUBLE_FULL(name, def, min, max, step) EDJE_EXTERNAL_PARAM_INFO_DOUBLE_FULL_FLAGS(name, def, min, max, step, EDJE_EXTERNAL_PARAM_FLAGS_REGULAR)
#define | EDJE_EXTERNAL_PARAM_INFO_STRING_FULL(name, def, accept, deny) EDJE_EXTERNAL_PARAM_INFO_STRING_FULL_FLAGS(name, def, accept, deny, EDJE_EXTERNAL_PARAM_FLAGS_REGULAR)
#define | EDJE_EXTERNAL_PARAM_INFO_BOOL_FULL(name, def, false_str, true_str) EDJE_EXTERNAL_PARAM_INFO_BOOL_FULL_FLAGS(name, def, false_str, true_str, EDJE_EXTERNAL_PARAM_FLAGS_REGULAR)
#define | EDJE_EXTERNAL_PARAM_INFO_CHOICE_FULL(name, def, choices) EDJE_EXTERNAL_PARAM_INFO_CHOICE_FULL_FLAGS(name, def, choices, EDJE_EXTERNAL_PARAM_FLAGS_REGULAR)
#define | EDJE_EXTERNAL_PARAM_INFO_CHOICE_DYNAMIC_FULL(name, def_get, query) EDJE_EXTERNAL_PARAM_INFO_CHOICE_DYNAMIC_FULL_FLAGS(name, def_get, query, EDJE_EXTERNAL_PARAM_FLAGS_REGULAR)
#define | EDJE_EXTERNAL_PARAM_INFO_INT_DEFAULT(name, def) EDJE_EXTERNAL_PARAM_INFO_INT_FULL(name, def, EDJE_EXTERNAL_INT_UNSET, EDJE_EXTERNAL_INT_UNSET, EDJE_EXTERNAL_INT_UNSET)
#define | EDJE_EXTERNAL_PARAM_INFO_DOUBLE_DEFAULT(name, def) EDJE_EXTERNAL_PARAM_INFO_DOUBLE_FULL(name, def, EDJE_EXTERNAL_DOUBLE_UNSET, EDJE_EXTERNAL_DOUBLE_UNSET, EDJE_EXTERNAL_DOUBLE_UNSET)
#define | EDJE_EXTERNAL_PARAM_INFO_STRING_DEFAULT(name, def) EDJE_EXTERNAL_PARAM_INFO_STRING_FULL(name, def, NULL, NULL)
#define | EDJE_EXTERNAL_PARAM_INFO_BOOL_DEFAULT(name, def) EDJE_EXTERNAL_PARAM_INFO_BOOL_FULL(name, def, "false", "true")
#define | EDJE_EXTERNAL_PARAM_INFO_INT_DEFAULT_FLAGS(name, def, flags) EDJE_EXTERNAL_PARAM_INFO_INT_FULL_FLAGS(name, def, EDJE_EXTERNAL_INT_UNSET, EDJE_EXTERNAL_INT_UNSET, EDJE_EXTERNAL_INT_UNSET, flags)
#define | EDJE_EXTERNAL_PARAM_INFO_DOUBLE_DEFAULT_FLAGS(name, def, flags) EDJE_EXTERNAL_PARAM_INFO_DOUBLE_FULL_FLAGS(name, def, EDJE_EXTERNAL_DOUBLE_UNSET, EDJE_EXTERNAL_DOUBLE_UNSET, EDJE_EXTERNAL_DOUBLE_UNSET, flags)
#define | EDJE_EXTERNAL_PARAM_INFO_STRING_DEFAULT_FLAGS(name, def, flags) EDJE_EXTERNAL_PARAM_INFO_STRING_FULL_FLAGS(name, def, NULL, NULL, flags)
#define | EDJE_EXTERNAL_PARAM_INFO_BOOL_DEFAULT_FLAGS(name, def, flags) EDJE_EXTERNAL_PARAM_INFO_BOOL_FULL_FLAGS(name, def, "false", "true", flags)
#define | EDJE_EXTERNAL_PARAM_INFO_INT(name) EDJE_EXTERNAL_PARAM_INFO_INT_DEFAULT(name, 0)
#define | EDJE_EXTERNAL_PARAM_INFO_DOUBLE(name) EDJE_EXTERNAL_PARAM_INFO_DOUBLE_DEFAULT(name, 0.0)
#define | EDJE_EXTERNAL_PARAM_INFO_STRING(name) EDJE_EXTERNAL_PARAM_INFO_STRING_DEFAULT(name, NULL)
#define | EDJE_EXTERNAL_PARAM_INFO_BOOL(name) EDJE_EXTERNAL_PARAM_INFO_BOOL_DEFAULT(name, 0)
#define | EDJE_EXTERNAL_PARAM_INFO_INT_FLAGS(name, flags) EDJE_EXTERNAL_PARAM_INFO_INT_DEFAULT_FLAGS(name, 0, flags)
#define | EDJE_EXTERNAL_PARAM_INFO_DOUBLE_FLAGS(name, flags) EDJE_EXTERNAL_PARAM_INFO_DOUBLE_DEFAULT_FLAGS(name, 0.0, flags)
#define | EDJE_EXTERNAL_PARAM_INFO_STRING_FLAGS(name, flags) EDJE_EXTERNAL_PARAM_INFO_STRING_DEFAULT_FLAGS(name, NULL, flags)
#define | EDJE_EXTERNAL_PARAM_INFO_BOOL_FLAGS(name, flags) EDJE_EXTERNAL_PARAM_INFO_BOOL_DEFAULT_FLAGS(name, 0, flags)
#define | EDJE_EXTERNAL_PARAM_INFO_SENTINEL {NULL, 0, 0, {.s = {NULL, NULL, NULL}}}
#define | EDJE_EXTERNAL_TYPE_ABI_VERSION (3)
| Version of the EDJE External ABI used by this library .

## Typedefs
typedef enum _Edje_External_Param_Flags | Edje_External_Param_Flags
| Flags that determine how a parameter may be accessed in different circumstances.
typedef struct _Edje_External_Param | Edje_External_Param
| Struct that holds parameters for parts of type EXTERNAL.
typedef struct _Edje_External_Param_Info | Edje_External_Param_Info
| Struct holding information about an EXTERNAL part's parameters.
typedef struct _Edje_External_Type | Edje_External_Type
| Alias for _Edje_External_Type.
typedef struct _Edje_External_Type_Info | Edje_External_Type_Info
| Alias for _Edje_External_Type_Info.

## Enumerations
enum | Edje_External_Param_Type { EDJE_EXTERNAL_PARAM_TYPE_INT = 0 , EDJE_EXTERNAL_PARAM_TYPE_DOUBLE , EDJE_EXTERNAL_PARAM_TYPE_STRING , EDJE_EXTERNAL_PARAM_TYPE_BOOL , EDJE_EXTERNAL_PARAM_TYPE_CHOICE , EDJE_EXTERNAL_PARAM_TYPE_MAX }
| The possible types the parameters of an EXTERNAL part can be. More...
enum | _Edje_External_Param_Flags { EDJE_EXTERNAL_PARAM_FLAGS_NONE = 0 , EDJE_EXTERNAL_PARAM_FLAGS_GET = (1 << 0) , EDJE_EXTERNAL_PARAM_FLAGS_SET = (1 << 1) , EDJE_EXTERNAL_PARAM_FLAGS_STATE = (1 << 2) , EDJE_EXTERNAL_PARAM_FLAGS_CONSTRUCTOR = (1 << 3) , EDJE_EXTERNAL_PARAM_FLAGS_REGULAR }
| Flags that determine how a parameter may be accessed in different circumstances. More...

## Functions
const char * | edje_external_param_type_str (Edje_External_Param_Type type)
| Converts type identifier to string nicer representation.

## Detailed Description

This group discusses functions of the external section of Edje.

The programmer can create new types for parts, that will be called generically EXTERNALS as they are not native of Edje. The developer must also create plugins that will define the meaning of each extra properties carried by these parts of type EXTERNAL.

As long as there are new types properly registered with the plugins created, the user can use the parts of type EXTERNAL as all the parts of native types.

## Typedef Documentation

## ◆ Edje_External_Param_Info

typedef struct _Edje_External_Param_Info Edje_External_Param_Info

Struct holding information about an EXTERNAL part's parameters.

When creating types to use with EXTERNAL parts, an array of this type is used to describe the different parameters the object uses.

This struct holds the name, type and flags that define how and when the parameter is used, as well as information specific to each type, like the maximum or minimum value, that can be used by editors to restrict the range of values to set for each parameter.

## Enumeration Type Documentation

## ◆ Edje_External_Param_Type

enum Edje_External_Param_Type

The possible types the parameters of an EXTERNAL part can be.

Enumerator
EDJE_EXTERNAL_PARAM_TYPE_INT | Parameter value is an integer.
EDJE_EXTERNAL_PARAM_TYPE_DOUBLE | Parameter value is a double.
EDJE_EXTERNAL_PARAM_TYPE_STRING | Parameter value is a string.
EDJE_EXTERNAL_PARAM_TYPE_BOOL | Parameter value is boolean.
EDJE_EXTERNAL_PARAM_TYPE_CHOICE | Parameter value is one of a set of predefined string choices.
EDJE_EXTERNAL_PARAM_TYPE_MAX | Sentinel value to indicate last enum field during iteration.

## ◆ _Edje_External_Param_Flags

enum _Edje_External_Param_Flags

Flags that determine how a parameter may be accessed in different circumstances.

Enumerator
EDJE_EXTERNAL_PARAM_FLAGS_NONE | Property is incapable of operations, this is used to catch bogus flags.
EDJE_EXTERNAL_PARAM_FLAGS_GET | Property can be read/get.
EDJE_EXTERNAL_PARAM_FLAGS_SET | Property can be written/set. This only enables edje_object_part_external_param_set() and Embryo scripts. To enable the parameter being set from state description whenever it changes state, use EDJE_EXTERNAL_PARAM_FLAGS_STATE.
EDJE_EXTERNAL_PARAM_FLAGS_STATE | Property can be set from state description.
EDJE_EXTERNAL_PARAM_FLAGS_CONSTRUCTOR | This property is only set once when the object is constructed using its value from "default" 0.0 state description. Setting this overrides EDJE_EXTERNAL_PARAM_FLAGS_STATE.
EDJE_EXTERNAL_PARAM_FLAGS_REGULAR | Convenience flag that sets property as GET, SET and STATE.

## Function Documentation

## ◆ edje_external_param_type_str()

const char * edje_external_param_type_str | ( | Edje_External_Param_Type | type | ) |

Converts type identifier to string nicer representation.

This may be used to debug or other informational purposes.

Parameters

  type | the identifier to convert.

Returns
  the string with the string representation, or `"(unknown)"`.

References EDJE_EXTERNAL_PARAM_TYPE_BOOL, EDJE_EXTERNAL_PARAM_TYPE_CHOICE, EDJE_EXTERNAL_PARAM_TYPE_DOUBLE, EDJE_EXTERNAL_PARAM_TYPE_INT, and EDJE_EXTERNAL_PARAM_TYPE_STRING.