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Add theme switching

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This commit is contained in:
Johannes Marbach 2021-09-06 11:42:00 +02:00
parent 14de16a506
commit 58e8618268
3 changed files with 173 additions and 59 deletions
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51
main.c
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@ -11,6 +11,14 @@
#include "libinput_xkb.h"
#include "layouts.h"
// Custom fonts
LV_FONT_DECLARE(montserrat_extended_32);
// Custom symbols
#define SYMBOL_ADJUST "\xef\x81\x82" // 0xF042 https://fontawesome.com/v5.15/icons/adjust?style=solid
// Mouse cursor image (from https://github.com/lvgl/lv_sim_emscripten/blob/master/mouse_cursor_icon.c)
const uint8_t mouse_cursor_icon_map[] = {
@ -116,10 +124,20 @@ lv_img_dsc_t mouse_cursor_icon = {
.data = mouse_cursor_icon_map,
};
// Global widgets
// Global variables
bool is_dark_theme = false;
lv_obj_t *keyboard = NULL;
// Theming
void set_theme(bool is_dark);
void set_theme(bool is_dark) {
lv_theme_default_init(
NULL, lv_palette_main(LV_PALETTE_BLUE), lv_palette_main(LV_PALETTE_CYAN), is_dark, &montserrat_extended_32);
}
// Event callbacks
void keyboard_event_ready_cb(lv_event_t *e);
@ -137,7 +155,18 @@ void keyboard_event_cancel_cb(lv_event_t *e) {
abort();
}
void keymap_dropdown_event_cb(lv_event_t * e) {
void theme_switcher_event_cb(lv_event_t *e);
void theme_switcher_event_cb(lv_event_t *e) {
if(lv_event_get_code(e) == LV_EVENT_VALUE_CHANGED) {
is_dark_theme = !is_dark_theme;
set_theme(is_dark_theme);
}
}
void keymap_dropdown_event_cb(lv_event_t *e);
void keymap_dropdown_event_cb(lv_event_t *e) {
if(lv_event_get_code(e) != LV_EVENT_VALUE_CHANGED) {
return;
}
@ -232,8 +261,8 @@ int main(void)
// Build the UI...
// Register fonts
LV_FONT_DECLARE(montserrat_extended_32);
// Initialise theme
set_theme(is_dark_theme);
// Figure out a few numbers for sizing and positioning
int row_height = ver_res / 6;
@ -294,6 +323,20 @@ int main(void)
lv_obj_add_event_cb(keyboard, keyboard_event_cancel_cb, LV_EVENT_CANCEL, NULL);
lv_obj_add_event_cb(keyboard, keyboard_event_ready_cb, LV_EVENT_READY, NULL);
// Theme switcher
lv_obj_t *theme_switcher = lv_btn_create(lv_scr_act());
lv_obj_align(theme_switcher, LV_ALIGN_TOP_LEFT, 20, 20);
lv_obj_add_flag(theme_switcher, LV_OBJ_FLAG_CHECKABLE);
lv_obj_set_height(theme_switcher, LV_SIZE_CONTENT);
lv_obj_t *theme_switcher_label = lv_label_create(theme_switcher);
lv_style_t style_theme_switcher_label;
lv_style_init(&style_theme_switcher_label);
lv_style_set_text_font(&style_theme_switcher_label, &montserrat_extended_32);
lv_obj_add_style(theme_switcher_label, &style_theme_switcher_label, 0);
lv_obj_center(theme_switcher_label);
lv_label_set_text(theme_switcher_label, SYMBOL_ADJUST);
lv_obj_add_event_cb(theme_switcher, theme_switcher_event_cb, LV_EVENT_ALL, NULL);
// Keymap dropdown
lv_obj_t *dropdown = lv_dropdown_create(lv_scr_act());
lv_dropdown_set_options(dropdown, get_layout_names());