191 lines
3.9 KiB
C
191 lines
3.9 KiB
C
/**
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* Copyright 2021 Johannes Marbach
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#ifndef UL_THEME_H
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#define UL_THEME_H
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#include "lvgl/lvgl.h"
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#include <stdbool.h>
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#include <stdint.h>
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#define UL_WIDGET_HEADER LV_OBJ_FLAG_USER_1
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/**
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* Theming structs
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*/
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/* Window theme */
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typedef struct {
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uint32_t bg_color;
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} ul_theme_window;
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/* Header theme */
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typedef struct {
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uint32_t bg_color;
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lv_coord_t border_width;
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uint32_t border_color;
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lv_coord_t pad;
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lv_coord_t gap;
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} ul_theme_header;
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/* Key theme for one specific key type and state */
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typedef struct {
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uint32_t fg_color;
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uint32_t bg_color;
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uint32_t border_color;
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} ul_theme_key_state;
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/* Key theme for one specific key type and all states */
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typedef struct {
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ul_theme_key_state normal;
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ul_theme_key_state pressed;
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} ul_theme_key;
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/* Key theme */
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typedef struct {
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lv_coord_t border_width;
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lv_coord_t corner_radius;
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ul_theme_key key_char;
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ul_theme_key key_non_char;
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ul_theme_key key_mod_act;
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ul_theme_key key_mod_inact;
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} ul_theme_keys;
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/* Keyboard theme */
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typedef struct {
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uint32_t bg_color;
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lv_coord_t border_width;
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uint32_t border_color;
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lv_coord_t pad;
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lv_coord_t gap;
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ul_theme_keys keys;
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} ul_theme_keyboard;
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/* Button theme for one specific button state */
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typedef struct {
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uint32_t fg_color;
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uint32_t bg_color;
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uint32_t border_color;
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} ul_theme_button_state;
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/* Button theme */
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typedef struct {
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lv_coord_t border_width;
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lv_coord_t corner_radius;
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lv_coord_t pad;
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ul_theme_button_state normal;
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ul_theme_button_state pressed;
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} ul_theme_button;
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/* Text area cursor theme */
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typedef struct {
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lv_coord_t width;
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uint32_t color;
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int period;
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} ul_theme_textarea_cursor;
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/* Text area theme */
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typedef struct {
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uint32_t fg_color;
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uint32_t bg_color;
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lv_coord_t border_width;
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uint32_t border_color;
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lv_coord_t corner_radius;
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lv_coord_t pad;
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uint32_t placeholder_color;
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ul_theme_textarea_cursor cursor;
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} ul_theme_textarea;
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/* Dropdown list theme */
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typedef struct {
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uint32_t fg_color;
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uint32_t bg_color;
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uint32_t selection_fg_color;
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uint32_t selection_bg_color;
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lv_coord_t border_width;
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uint32_t border_color;
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lv_coord_t corner_radius;
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lv_coord_t pad;
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} ul_theme_dropdown_list;
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/* Dropdown theme */
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typedef struct {
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ul_theme_button button;
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ul_theme_dropdown_list list;
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} ul_theme_dropdown;
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/* Label */
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typedef struct {
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uint32_t fg_color;
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} ul_theme_label;
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/* Message box buttons theme */
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typedef struct {
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lv_coord_t gap;
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} ul_theme_msgbox_buttons;
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/* Message box dimming theme */
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typedef struct {
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uint32_t color;
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short opacity;
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} ul_theme_msgbox_dimming;
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/* Message box theme */
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typedef struct {
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uint32_t fg_color;
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uint32_t bg_color;
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lv_coord_t border_width;
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uint32_t border_color;
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lv_coord_t corner_radius;
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lv_coord_t pad;
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lv_coord_t gap;
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ul_theme_msgbox_buttons buttons;
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ul_theme_msgbox_dimming dimming;
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} ul_theme_msgbox;
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/* Progress bar indicator theme */
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typedef struct {
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uint32_t bg_color;
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} ul_theme_bar_indicator;
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/* Progress bar theme */
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typedef struct {
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lv_coord_t border_width;
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uint32_t border_color;
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lv_coord_t corner_radius;
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ul_theme_bar_indicator indicator;
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} ul_theme_bar;
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/* Full theme */
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typedef struct {
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char *name;
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ul_theme_window window;
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ul_theme_header header;
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ul_theme_keyboard keyboard;
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ul_theme_button button;
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ul_theme_textarea textarea;
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ul_theme_dropdown dropdown;
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ul_theme_label label;
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ul_theme_msgbox msgbox;
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ul_theme_bar bar;
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} ul_theme;
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/**
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* Prepare a keyboard widget to be themed with a theme.
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*
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* @param keyboard keyboard widget
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*/
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void ul_theme_prepare_keyboard(lv_obj_t *keyboard);
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/**
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* Apply a UI theme.
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*
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* @param theme the theme to apply
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*/
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void ul_theme_apply(const ul_theme *theme);
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#endif /* UL_THEME_H */
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