lv_theme.h

Typedefs

typedef void (*lv_theme_apply_cb_t)(struct _lv_theme_t*, lv_obj_t*)

typedef struct _lv_theme_t lv_theme_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

struct _lv_theme_t

Public Members

lv_theme_apply_cb_t apply_cb

struct _lv_theme_t *parent: Apply the current theme's style on top of this theme.

void *user_data

struct _lv_display_t *disp

lv_color_t color_primary

lv_color_t color_secondary

const lv_font_t *font_small

const lv_font_t *font_normal

const lv_font_t *font_large

uint32_t flags