lv_theme.h

Typedefs

typedef void (*lv_theme_apply_cb_t)(lv_theme_t*, lv_obj_t*)

Functions

lv_theme_t *lv_theme_get_from_obj(lv_obj_t *obj)

Get the theme assigned to the display of the object

Parameters:

obj – pointer to a theme object

Returns:

the theme of the object's display (can be NULL)

void lv_theme_apply(lv_obj_t *obj)

Apply the active theme on an object

Parameters:

obj – pointer to an object

void lv_theme_set_parent(lv_theme_t *new_theme, lv_theme_t *parent)

Set a base theme for a theme. The styles from the base them will be added before the styles of the current theme. Arbitrary long chain of themes can be created by setting base themes.

Parameters:

• new_theme – pointer to theme which base should be set

• parent – pointer to the base theme

void lv_theme_set_apply_cb(lv_theme_t *theme, lv_theme_apply_cb_t apply_cb)

Set an apply callback for a theme. The apply callback is used to add styles to different objects

Parameters:

• theme – pointer to theme which callback should be set

• apply_cb – pointer to the callback

const lv_font_t *lv_theme_get_font_small(lv_obj_t *obj)

Get the small font of the theme

Parameters:

obj – pointer to an object

Returns:

pointer to the font

const lv_font_t *lv_theme_get_font_normal(lv_obj_t *obj)

Get the normal font of the theme

Parameters:

obj – pointer to an object

Returns:

pointer to the font

const lv_font_t *lv_theme_get_font_large(lv_obj_t *obj)

Get the subtitle font of the theme

Parameters:

obj – pointer to an object

Returns:

pointer to the font

lv_color_t lv_theme_get_color_primary(lv_obj_t *obj)

Get the primary color of the theme

Parameters:

obj – pointer to an object

Returns:

the color

lv_color_t lv_theme_get_color_secondary(lv_obj_t *obj)

Get the secondary color of the theme

Parameters:

obj – pointer to an object

Returns:

the color