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/**
* @file lv_theme.c
*
*/
/*********************
* INCLUDES
*********************/
#include "../../lvgl.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void apply_theme(lv_theme_t * th, lv_obj_t * obj);
static void apply_theme_recursion(lv_theme_t * th, lv_obj_t * obj);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_theme_t * lv_theme_get_from_obj(lv_obj_t * obj)
{
lv_display_t * disp = obj ? lv_obj_get_display(obj) : lv_display_get_default();
return lv_display_get_theme(disp);
}
void lv_theme_apply(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
if(th == NULL) return;
lv_obj_remove_style_all(obj);
apply_theme_recursion(th, obj); /*Apply the theme including the base theme(s)*/
}
void lv_theme_set_parent(lv_theme_t * new_theme, lv_theme_t * base)
{
new_theme->parent = base;
}
void lv_theme_set_apply_cb(lv_theme_t * theme, lv_theme_apply_cb_t apply_cb)
{
theme->apply_cb = apply_cb;
}
const lv_font_t * lv_theme_get_font_small(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->font_small : LV_FONT_DEFAULT;
}
const lv_font_t * lv_theme_get_font_normal(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->font_normal : LV_FONT_DEFAULT;
}
const lv_font_t * lv_theme_get_font_large(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->font_large : LV_FONT_DEFAULT;
}
lv_color_t lv_theme_get_color_primary(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->color_primary : lv_palette_main(LV_PALETTE_BLUE_GREY);
}
lv_color_t lv_theme_get_color_secondary(lv_obj_t * obj)
{
lv_theme_t * th = lv_theme_get_from_obj(obj);
return th ? th->color_secondary : lv_palette_main(LV_PALETTE_BLUE);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void apply_theme(lv_theme_t * th, lv_obj_t * obj)
{
if(th->parent) apply_theme(th->parent, obj);
if(th->apply_cb) th->apply_cb(th, obj);
}
static void apply_theme_recursion(lv_theme_t * th, lv_obj_t * obj)
{
const lv_obj_class_t * original_class_p = obj->class_p;
if(obj->class_p->base_class && obj->class_p->theme_inheritable == LV_OBJ_CLASS_THEME_INHERITABLE_TRUE) {
/*Apply the base class theme in obj*/
obj->class_p = obj->class_p->base_class;
/*apply the base first*/
apply_theme_recursion(th, obj);
}
/*Restore the original class*/
obj->class_p = original_class_p;
apply_theme(th, obj);
}
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