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