Edje Class: Color

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Edje Class: Color
Edje » Edje Object

Functions that deal with Color Classes. More...

## Functions
Eina_Bool | edje_color_class_set (const char *color_class, int r, int g, int b, int a, int r2, int g2, int b2, int a2, int r3, int g3, int b3, int a3)
| Sets Edje color class.
void | edje_color_class_apply (void)
| Applies changes mad when setting Edje color classes.
Eina_Bool | edje_color_class_get (const char *color_class, int *r, int *g, int *b, int *a, int *r2, int *g2, int *b2, int *a2, int *r3, int *g3, int *b3, int *a3)
| Gets Edje color class.
void | edje_color_class_del (const char *color_class)
| Deletes edje color class.
Eina_List * | edje_color_class_list (void)
| Lists color classes.
Eina_Iterator * | edje_color_class_active_iterator_new (void)
| Iterates over all the active class of an application.
Eina_Iterator * | edje_mmap_color_class_iterator_new (Eina_File *f)
| Iterates over all the color class provided by an Edje file.
Eina_Bool | edje_object_color_class_set (Evas_Object *obj, const char *color_class, int r, int g, int b, int a, int r2, int g2, int b2, int a2, int r3, int g3, int b3, int a3)
| Sets the object color class.
Eina_Bool | edje_object_color_class_get (const Evas_Object *obj, const char *color_class, int *r, int *g, int *b, int *a, int *r2, int *g2, int *b2, int *a2, int *r3, int *g3, int *b3, int *a3)
| Gets the object color class.
void | edje_object_color_class_del (Evas_Object *obj, const char *color_class)
| Delete the object color class.
Eina_Bool | edje_object_color_class_clear (const Evas_Object *obj)
| Delete all color classes defined in object level.
const char * | edje_object_color_class_description_get (const Edje_Object *obj, const char *color_class)
| Gets the description of an object color class.

## Detailed Description

Functions that deal with Color Classes.

Sometimes we want to change the color of two or more parts equally and that's when we use color classes.

If one or more parts are assigned with a color class, when we set color values to this class it will cause all these parts to have their colors multiplied by the values. Setting values to a color class at a process level will affect all parts with that color class, while at a object level will affect only the parts inside an specified object.

## Function Documentation

## ◆ edje_color_class_set()

Eina_Bool edje_color_class_set | ( | const char * | color_class,
|  | int | r,
|  | int | g,
|  | int | b,
|  | int | a,
|  | int | r2,
|  | int | g2,
|  | int | b2,
|  | int | a2,
|  | int | r3,
|  | int | g3,
|  | int | b3,
|  | int | a3
| ) |  |

Sets Edje color class.

Parameters

  color_class |
  r | Object Red value
  g | Object Green value
  b | Object Blue value
  a | Object Alpha value
  r2 | Outline Red value
  g2 | Outline Green value
  b2 | Outline Blue value
  a2 | Outline Alpha value
  r3 | Shadow Red value
  g3 | Shadow Green value
  b3 | Shadow Blue value
  a3 | Shadow Alpha value

This function sets the color values for a process level color class. This will cause all edje parts in the current process that have the specified color class to have their colors multiplied by these values. (Object level color classes set by edje_object_color_class_set() will override the values set by this function).

The first color is the object, the second is the text outline, and the third is the text shadow. (Note that the second two only apply to text parts).

Setting color emits a signal "color_class,set" with source being the given color class in all objects.

See also
  edje_color_class_set().

Note
  Unlike Evas, Edje colors are not pre-multiplied. That is, half-transparent white is 255 255 255 128.

Returns
  Eina_Bool, `EINA_TRUE` on success and `EINA_FALSE` on failure.

Examples
  edje-color-class.c.

References EINA_FALSE, eina_hash_string_superfast_new(), and EINA_TRUE.

Referenced by elm_color_class_editor_add().

## ◆ edje_color_class_apply()

void edje_color_class_apply | ( | void |  | ) |

Applies changes mad when setting Edje color classes.

This forces all changes to color classes made by (for example) edje_color_class_set() to actually take effect.

Since
  1.26

References EINA_INLIST_FOREACH, and EINA_TRUE.

## ◆ edje_color_class_get()

Eina_Bool edje_color_class_get | ( | const char * | color_class,
|  | int * | r,
|  | int * | g,
|  | int * | b,
|  | int * | a,
|  | int * | r2,
|  | int * | g2,
|  | int * | b2,
|  | int * | a2,
|  | int * | r3,
|  | int * | g3,
|  | int * | b3,
|  | int * | a3
| ) |  |

Gets Edje color class.

Parameters

  color_class |
  r | Object Red value
  g | Object Green value
  b | Object Blue value
  a | Object Alpha value
  r2 | Outline Red value
  g2 | Outline Green value
  b2 | Outline Blue value
  a2 | Outline Alpha value
  r3 | Shadow Red value
  g3 | Shadow Green value
  b3 | Shadow Blue value
  a3 | Shadow Alpha value

Returns
  `EINA_TRUE` if found or `EINA_FALSE` if not found and all values are zeroed.

This function gets the color values for a process level color class. This value is the globally set and not per-object, that is, the value that would be used by objects if they did not override with edje_object_color_class_set().

The first color is the object, the second is the text outline, and the third is the text shadow. (Note that the second two only apply to text parts).

See also
  edje_color_class_set().

Note
  Unlike Evas, Edje colors are not pre-multiplied. That is, half-transparent white is 255 255 255 128.

Examples
  edje-color-class.c.

References EINA_TRUE.

## ◆ edje_color_class_del()

void edje_color_class_del | ( | const char * | color_class | ) |

Deletes edje color class.

Parameters

  color_class |

This function deletes any values at the process level for the specified color class.

Note
  Deleting the color class will revert it to the values defined in the theme file.

Deleting the color class will emit the signal "color_class,del" to all the Edje objects in the running program.

Examples
  edje-color-class.c.

## ◆ edje_color_class_list()

Eina_List * edje_color_class_list | ( | void |  | ) |

Lists color classes.

Returns
  A list of color class names (strings). These strings and the list must be free()'d by the caller.

This function lists all color classes known about by the current process.

Examples
  edje-color-class.c.

References eina_hash_foreach().

## ◆ edje_color_class_active_iterator_new()

Eina_Iterator * edje_color_class_active_iterator_new | ( | void |  | ) |

Iterates over all the active class of an application.

Returns
  an iterator of Edje_Color_Class of the currently active color class

This function only iterate over the Edje_Color_Class in use by an application.

Since
  1.14

References EINA_MAGIC_SET.

Referenced by elm_color_class_editor_add().

## ◆ edje_mmap_color_class_iterator_new()

Eina_Iterator * edje_mmap_color_class_iterator_new | ( | Eina_File * | f | ) |

Iterates over all the color class provided by an Edje file.

Parameters

  f | The mapped edje file.

Returns
  an iterator of Edje_Color_Class provided by the Edje file.

Since
  1.14

References eina_hash_iterator_tuple_new(), and EINA_MAGIC_SET.

Referenced by elm_color_class_util_edje_file_list().

## ◆ edje_object_color_class_set()

Eina_Bool edje_object_color_class_set | ( | Evas_Object * | obj,
|  | const char * | color_class,
|  | int | r,
|  | int | g,
|  | int | b,
|  | int | a,
|  | int | r2,
|  | int | g2,
|  | int | b2,
|  | int | a2,
|  | int | r3,
|  | int | g3,
|  | int | b3,
|  | int | a3
| ) |  |

Sets the object color class.

This function sets the color values for an object level color class. This will cause all edje parts in the specified object that have the specified color class to have their colors multiplied by these values.

The first color is the object, the second is the text outline, and the third is the text shadow. (Note that the second two only apply to text parts).

Setting color emits a signal "color_class,set" with source being the given color.

Note
  unlike Evas, Edje colors are not pre-multiplied. That is, half-transparent white is 255 255 255 128.

Parameters

  [in] | color_class | The name of color class
  [in] | r | Object Red value
  [in] | g | Object Green value
  [in] | b | Object Blue value
  [in] | a | Object Alpha value
  [in] | r2 | Outline Red value
  [in] | g2 | Outline Green value
  [in] | b2 | Outline Blue value
  [in] | a2 | Outline Alpha value
  [in] | r3 | Shadow Red value
  [in] | g3 | Shadow Green value
  [in] | b3 | Shadow Blue value
  [in] | a3 | Shadow Alpha value

Examples
  edje-color-class.c.

References EINA_TRUE.

## ◆ edje_object_color_class_get()

Eina_Bool edje_object_color_class_get | ( | const Evas_Object * | obj,
|  | const char * | color_class,
|  | int * | r,
|  | int * | g,
|  | int * | b,
|  | int * | a,
|  | int * | r2,
|  | int * | g2,
|  | int * | b2,
|  | int * | a2,
|  | int * | r3,
|  | int * | g3,
|  | int * | b3,
|  | int * | a3
| ) |  |

Gets the object color class.

This function gets the color values for an object level color class. If no explicit object color is set, then global values will be used.

The first color is the object, the second is the text outline, and the third is the text shadow. (Note that the second two only apply to text parts).

Note
  unlike Evas, Edje colors are not pre-multiplied. That is, half-transparent white is 255 255 255 128.

Parameters

  [in] | color_class | The name of color class
  [out] | r | Object Red value
  [out] | g | Object Green value
  [out] | b | Object Blue value
  [out] | a | Object Alpha value
  [out] | r2 | Outline Red value
  [out] | g2 | Outline Green value
  [out] | b2 | Outline Blue value
  [out] | a2 | Outline Alpha value
  [out] | r3 | Shadow Red value
  [out] | g3 | Shadow Green value
  [out] | b3 | Shadow Blue value
  [out] | a3 | Shadow Alpha value

Returns
  true if found or false if not found and all values are zeroed.

References EINA_TRUE.

## ◆ edje_object_color_class_del()

void edje_object_color_class_del | ( | Evas_Object * | obj,
|  | const char * | color_class
| ) |  |

Delete the object color class.

This function deletes any values at the object level for the specified object and color class.

Deleting the color class will revert it to the values defined by edje_color_class_set() or the color class defined in the theme file.

Deleting the color class will emit the signal "color_class,del" for the given Edje object.

Parameters

  [in] | color_class | The color class to be deleted.

Examples
  edje-color-class.c.

## ◆ edje_object_color_class_clear()

Eina_Bool edje_object_color_class_clear | ( | const Evas_Object * | obj | ) |

Delete all color classes defined in object level.

This function deletes any color classes defined in object level. Clearing color classes will revert the color of all edje parts to the values defined in global level or theme file.

Returns
  `true`, on success or `false`, on error

Since
  1.17.0

References EINA_TRUE.

## ◆ edje_object_color_class_description_get()

const char * edje_object_color_class_description_get | ( | const Edje_Object * | obj,
|  | const char * | color_class
| ) |  |

Gets the description of an object color class.

This function gets the description of a color class in use by an object.

Parameters

  [in] | color_class | Color class description

Returns
  The description of the target color class or `null` if not found