121 lines
2.9 KiB
C
121 lines
2.9 KiB
C
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/**
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*@file lv_theme.h
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*
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*/
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#ifndef LV_THEME_H
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#define LV_THEME_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#include "../core/lv_obj.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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struct _lv_theme_t;
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struct _lv_disp_t;
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typedef void (*lv_theme_apply_cb_t)(struct _lv_theme_t *, lv_obj_t *);
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typedef struct _lv_theme_t {
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lv_theme_apply_cb_t apply_cb;
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struct _lv_theme_t * parent; /**< Apply the current theme's style on top of this theme.*/
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void * user_data;
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struct _lv_disp_t * disp;
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lv_color_t color_primary;
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lv_color_t color_secondary;
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const lv_font_t * font_small;
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const lv_font_t * font_normal;
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const lv_font_t * font_large;
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uint32_t flags; /*Any custom flag used by the theme*/
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} lv_theme_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Get the theme assigned to the display of the object
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* @param obj pointer to a theme object
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* @return the theme of the object's display (can be NULL)
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*/
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lv_theme_t * lv_theme_get_from_obj(lv_obj_t * obj);
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/**
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* Apply the active theme on an object
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* @param obj pointer to an object
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*/
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void lv_theme_apply(lv_obj_t * obj);
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/**
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* Set a base theme for a theme.
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* The styles from the base them will be added before the styles of the current theme.
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* Arbitrary long chain of themes can be created by setting base themes.
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* @param new_theme pointer to theme which base should be set
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* @param parent pointer to the base theme
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*/
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void lv_theme_set_parent(lv_theme_t * new_theme, lv_theme_t * parent);
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/**
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* Set an apply callback for a theme.
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* The apply callback is used to add styles to different objects
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* @param theme pointer to theme which callback should be set
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* @param apply_cb pointer to the callback
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*/
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void lv_theme_set_apply_cb(lv_theme_t * theme, lv_theme_apply_cb_t apply_cb);
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/**
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* Get the small font of the theme
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* @param obj pointer to an object
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* @return pointer to the font
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*/
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const lv_font_t * lv_theme_get_font_small(lv_obj_t * obj);
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/**
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* Get the normal font of the theme
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* @param obj pointer to an object
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* @return pointer to the font
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*/
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const lv_font_t * lv_theme_get_font_normal(lv_obj_t * obj);
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/**
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* Get the subtitle font of the theme
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* @param obj pointer to an object
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* @return pointer to the font
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*/
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const lv_font_t * lv_theme_get_font_large(lv_obj_t * obj);
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/**
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* Get the primary color of the theme
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* @param obj pointer to an object
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* @return the color
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*/
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lv_color_t lv_theme_get_color_primary(lv_obj_t * obj);
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/**
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* Get the secondary color of the theme
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* @param obj pointer to an object
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* @return the color
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*/
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lv_color_t lv_theme_get_color_secondary(lv_obj_t * obj);
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/**********************
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* MACROS
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**********************/
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#ifdef __cplusplus
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} /*extern "C"*/
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#endif
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#endif /*LV_THEME_H*/
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