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lvgl/demos/high_res/lv_demo_high_res_util.c

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/**
* @file lv_demo_high_res_util.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_demo_high_res_private.h"
#if LV_USE_DEMO_HIGH_RES
#include "../../src/widgets/image/lv_image.h"
#include "../../src/widgets/canvas/lv_canvas.h"
#include "../../src/widgets/label/lv_label.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_medium_12)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_medium_16)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_medium_24)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_30)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_36)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_60)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_light_120)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_light_160)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_regular_30)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_regular_60)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_regular_20)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_regular_40)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_regular_45)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_regular_90)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_light_80)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_light_107)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_light_180)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_light_240)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_medium_8)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_medium_11)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_medium_18)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_medium_36)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_20)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_24)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_40)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_45)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_54)
LV_FONT_DECLARE(font_lv_demo_high_res_roboto_slab_bold_90)
/**********************
* STATIC PROTOTYPES
**********************/
static void init_fonts_sm(lv_style_t * fonts);
static void init_fonts_md(lv_style_t * fonts);
static void init_fonts_lg(lv_style_t * fonts);
static void theme_observer_cb(lv_observer_t * observer, lv_subject_t * subject);
static void free_ctx_event_cb(lv_event_t * e);
static void label_text_temperature_cb(lv_observer_t * observer, lv_subject_t * subject);
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* STATIC VARIABLES
**********************/
const lv_demo_high_res_theme_t lv_demo_high_res_theme_light = {
.base = LV_COLOR_MAKE(0xff, 0xff, 0xff),
.accent = LV_COLOR_MAKE(0xcc, 0x00, 0x00),
};
const lv_demo_high_res_theme_t lv_demo_high_res_theme_dark = {
.base = LV_COLOR_MAKE(0x00, 0x00, 0x00),
.accent = LV_COLOR_MAKE(0xe1, 0x2b, 0x17),
};
const lv_demo_high_res_sizes_t lv_demo_high_res_sizes_all[SIZE_COUNT] = {
{
.gap = {0, 2, 4, 6, 9, 12, 14, 16, 20, 24, 32},
.icon = {16, 21, 32, 42, 64},
.card_long_edge = 200,
.widget_long_edge = 256,
.card_short_edge = 120,
.smart_home_arc_diameter = 107,
.ev_charging_arc_diameter = 160,
.smart_meter_collapsed_part_height = 48,
.slider_width = 27,
.small_chart_height = 67,
.large_chart_height = 167,
.card_radius = 12,
.health_panel_width = 133,
.settings_panel_width = 179,
.home_bottom_margin_height = 53,
.init_fonts_cb = init_fonts_sm
},
{
.gap = {0, 3, 6, 9, 12, 16, 20, 24, 30, 36, 48},
.icon = {24, 32, 48, 64, 96},
.card_long_edge = 300,
.widget_long_edge = 384,
.card_short_edge = 180,
.smart_home_arc_diameter = 160,
.ev_charging_arc_diameter = 240,
.smart_meter_collapsed_part_height = 72,
.slider_width = 40,
.small_chart_height = 100,
.large_chart_height = 250,
.card_radius = 18,
.health_panel_width = 200,
.settings_panel_width = 268,
.home_bottom_margin_height = 80,
.init_fonts_cb = init_fonts_md
},
{
.gap = {0, 5, 10, 15, 18, 24, 30, 36, 45, 54, 72},
.icon = {36, 48, 72, 96, 144},
.card_long_edge = 450,
.widget_long_edge = 576,
.card_short_edge = 270,
.smart_home_arc_diameter = 240,
.ev_charging_arc_diameter = 360,
.smart_meter_collapsed_part_height = 108,
.slider_width = 60,
.small_chart_height = 150,
.large_chart_height = 375,
.card_radius = 27,
.health_panel_width = 300,
.settings_panel_width = 402,
.home_bottom_margin_height = 120,
.init_fonts_cb = init_fonts_lg
}
};
/**********************
* MACROS
**********************/
#define ARRAY_LEN(arr) (sizeof(arr) / sizeof(*arr))
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_obj_t * lv_demo_high_res_base_obj_create(const char * assets_path,
const char * logo_path,
const char * slides_path,
lv_demo_high_res_exit_cb_t exit_cb)
{
lv_demo_high_res_ctx_t * c = lv_malloc_zeroed(sizeof(lv_demo_high_res_ctx_t));
LV_ASSERT_MALLOC(c);
lv_obj_t * base_obj = lv_obj_create(lv_screen_active());
lv_obj_set_user_data(base_obj, c);
lv_obj_add_event_cb(base_obj, free_ctx_event_cb, LV_EVENT_DELETE, NULL);
lv_display_t * disp = lv_display_get_default();
int32_t hres = lv_display_get_horizontal_resolution(disp);
int32_t vres = lv_display_get_vertical_resolution(disp);
bool is_exact;
int32_t size;
if(hres < 1280 && vres < 720) {
is_exact = hres == 800 && vres == 480;
size = SIZE_SM;
}
else if(hres < 1920 && vres < 1080) {
is_exact = hres == 1280 && vres == 720;
size = SIZE_MD;
}
else {
is_exact = hres == 1920 && vres == 1080;
size = SIZE_LG;
}
if(!is_exact) {
LV_LOG_WARN("a display size of exactly 800x480, 1280x720, or 1920x1080 is recommended for the high-res demo");
}
c->sz = &lv_demo_high_res_sizes_all[size];
static const struct {
const char * name;
lv_color_format_t cf;
} image_details[IMG_COUNT] = {
{"about_app_icon", LV_COLOR_FORMAT_ARGB8888},
{"album_art", LV_COLOR_FORMAT_ARGB8888},
{"arrow_left", LV_COLOR_FORMAT_ARGB8888},
{"backward_icon", LV_COLOR_FORMAT_ARGB8888},
{"cold_icon", LV_COLOR_FORMAT_ARGB8888},
{"dry_icon", LV_COLOR_FORMAT_ARGB8888},
{"energy_icon", LV_COLOR_FORMAT_ARGB8888},
{"ev_charging_app_icon", LV_COLOR_FORMAT_ARGB8888},
{"ev_charging_widget3_1_bg", LV_COLOR_FORMAT_ARGB8888},
{"ev_charging_widget3_bg", LV_COLOR_FORMAT_ARGB8888},
{"fan", LV_COLOR_FORMAT_ARGB8888},
{"forward_icon", LV_COLOR_FORMAT_ARGB8888},
{"health_icon", LV_COLOR_FORMAT_ARGB8888},
{"health_icon_bold", LV_COLOR_FORMAT_ARGB8888},
{"heat_icon", LV_COLOR_FORMAT_ARGB8888},
{"lamp", LV_COLOR_FORMAT_ARGB8888},
{"logout_icon", LV_COLOR_FORMAT_ARGB8888},
{"main_light_slider", LV_COLOR_FORMAT_ARGB8888},
{"minus", LV_COLOR_FORMAT_ARGB8888},
{"pager_left", LV_COLOR_FORMAT_ARGB8888},
{"pager_pause", LV_COLOR_FORMAT_ARGB8888},
{"pager_play", LV_COLOR_FORMAT_ARGB8888},
{"pager_right", LV_COLOR_FORMAT_ARGB8888},
{"play_icon", LV_COLOR_FORMAT_ARGB8888},
{"play_icon_1", LV_COLOR_FORMAT_ARGB8888},
{"plus", LV_COLOR_FORMAT_ARGB8888},
{"range_icon", LV_COLOR_FORMAT_ARGB8888},
{"setting_icon", LV_COLOR_FORMAT_ARGB8888},
{"setting_icon_bold", LV_COLOR_FORMAT_ARGB8888},
{"smart_home_app_icon", LV_COLOR_FORMAT_ARGB8888},
{"smart_home_widget1_bg", LV_COLOR_FORMAT_ARGB8888},
{"smart_home_widget2_bg", LV_COLOR_FORMAT_ARGB8888},
{"smart_meter_app_icon", LV_COLOR_FORMAT_ARGB8888},
{"thermostat_app_icon", LV_COLOR_FORMAT_ARGB8888},
{"time_icon", LV_COLOR_FORMAT_ARGB8888},
{"unlock", LV_COLOR_FORMAT_ARGB8888},
{"volume", LV_COLOR_FORMAT_ARGB8888},
{"weather", LV_COLOR_FORMAT_ARGB8888},
{"wifi_icon", LV_COLOR_FORMAT_ARGB8888},
{"light_bg_about", LV_COLOR_FORMAT_NATIVE},
{"dark_bg_about", LV_COLOR_FORMAT_NATIVE},
{"light_bg_ev_charging", LV_COLOR_FORMAT_NATIVE},
{"dark_bg_ev_charging", LV_COLOR_FORMAT_NATIVE},
{"light_bg_home", LV_COLOR_FORMAT_NATIVE},
{"dark_bg_home", LV_COLOR_FORMAT_NATIVE},
{"light_bg_smart_home", LV_COLOR_FORMAT_NATIVE},
{"dark_bg_smart_home", LV_COLOR_FORMAT_NATIVE},
{"light_bg_smart_meter", LV_COLOR_FORMAT_NATIVE},
{"dark_bg_smart_meter", LV_COLOR_FORMAT_NATIVE},
{"light_bg_thermostat", LV_COLOR_FORMAT_NATIVE},
{"dark_bg_thermostat", LV_COLOR_FORMAT_NATIVE},
{"light_dark_theme_icon", LV_COLOR_FORMAT_ARGB8888},
{"dark_dark_theme_icon", LV_COLOR_FORMAT_ARGB8888},
{"light_light_theme_icon", LV_COLOR_FORMAT_ARGB8888},
{"dark_light_theme_icon", LV_COLOR_FORMAT_ARGB8888},
{"light_widget1_bg", LV_COLOR_FORMAT_ARGB8888},
{"dark_widget1_bg", LV_COLOR_FORMAT_ARGB8888},
{"light_widget2_bg", LV_COLOR_FORMAT_ARGB8888},
{"dark_widget2_bg", LV_COLOR_FORMAT_ARGB8888},
{"light_widget3_bg", LV_COLOR_FORMAT_ARGB8888},
{"dark_widget3_bg", LV_COLOR_FORMAT_ARGB8888},
{"light_widget4_bg", LV_COLOR_FORMAT_ARGB8888},
{"dark_widget4_bg", LV_COLOR_FORMAT_ARGB8888},
{"light_widget5_bg", LV_COLOR_FORMAT_ARGB8888},
{"dark_widget5_bg", LV_COLOR_FORMAT_ARGB8888},
};
const char * size_prefix = size == SIZE_SM ? "sm" : size == SIZE_MD ? "md" : "lg";
for(uint32_t i = 0; i < IMG_COUNT; i++) {
char path_buf[256];
int chars = lv_snprintf(path_buf, sizeof(path_buf), "%s/img_lv_demo_high_res_%s_%s.png",
assets_path, image_details[i].name, size_prefix);
LV_ASSERT(chars < (int)sizeof(path_buf));
c->imgs[i] = lv_demo_high_res_image_preload(path_buf, image_details[i].cf, LV_SCALE_NONE);
}
for(uint32_t i = 0; i < STYLE_COLOR_COUNT; i++) {
for(uint32_t j = 0; j < STYLE_TYPE_COUNT; j++) {
lv_style_init(&c->styles[i][j]);
}
}
for(uint32_t i = 0; i < FONT_COUNT; i++) {
lv_style_init(&c->fonts[i]);
}
c->sz->init_fonts_cb(c->fonts);
lv_subject_init_pointer(&c->th, (void *)&lv_demo_high_res_theme_dark);
c->th.user_data = c;
lv_subject_add_observer(&c->th, theme_observer_cb, c);
c->logo_path = lv_strdup(logo_path);
LV_ASSERT_MALLOC(c->logo_path);
c->slides_path = lv_strdup(slides_path);
LV_ASSERT_MALLOC(c->slides_path);
c->exit_cb = exit_cb;
lv_subject_init_int(&c->temperature_units_are_celsius, 1);
c->ev_charging_bg_cont = NULL;
lv_subject_init_int(&c->ev_charging_progress, EV_CHARGING_RANGE_END * 0 / 100);
lv_subject_init_int(&c->smart_meter_selected_bar, 4);
c->top_margin_subjects_are_init = false;
/* API subjects */
/* input subjects */
lv_subject_init_int(&c->api.subjects.hour, 9);
lv_subject_init_int(&c->api.subjects.minute, 36);
lv_subject_init_pointer(&c->api.subjects.week_day_name, "Tuesday");
lv_subject_init_int(&c->api.subjects.month_day, 31);
lv_subject_init_pointer(&c->api.subjects.month_name, "October");
lv_subject_init_int(&c->api.subjects.temperature_outdoor, 140); /* tenths of a degree */
lv_subject_init_int(&c->api.subjects.temperature_indoor, 225); /* tenths of a degree */
lv_subject_init_pointer(&c->api.subjects.wifi_ssid, NULL);
lv_subject_init_pointer(&c->api.subjects.wifi_ip, NULL);
/* output subjects */
lv_subject_init_int(&c->api.subjects.music_play, 1);
/* input+output subjects */
lv_subject_init_int(&c->api.subjects.locked, 0);
lv_subject_init_int(&c->api.subjects.volume, 63);
lv_subject_init_int(&c->api.subjects.main_light_temperature, 4000);
lv_subject_init_int(&c->api.subjects.main_light_intensity, 52);
lv_subject_init_int(&c->api.subjects.thermostat_fan_speed, 40);
lv_subject_init_int(&c->api.subjects.thermostat_target_temperature, 240); /* tenths of a degree */
c->api.base_obj = base_obj;
c->api.user_data = NULL;
c->subject_groups.time.members[0] = &c->api.subjects.hour;
c->subject_groups.time.members[1] = &c->api.subjects.minute;
lv_subject_init_group(&c->subject_groups.time.group, c->subject_groups.time.members,
ARRAY_LEN(c->subject_groups.time.members));
c->subject_groups.date.members[0] = &c->api.subjects.week_day_name;
c->subject_groups.date.members[1] = &c->api.subjects.month_day;
c->subject_groups.date.members[2] = &c->api.subjects.month_name;
lv_subject_init_group(&c->subject_groups.date.group, c->subject_groups.date.members,
ARRAY_LEN(c->subject_groups.date.members));
c->subject_groups.wifi.members[0] = &c->api.subjects.wifi_ssid;
c->subject_groups.wifi.members[1] = &c->api.subjects.wifi_ip;
lv_subject_init_group(&c->subject_groups.wifi.group, c->subject_groups.wifi.members,
ARRAY_LEN(c->subject_groups.wifi.members));
lv_array_init(&c->about_slides_array, 1, sizeof(lv_image_dsc_t *));
lv_fs_dir_t dir;
lv_fs_res_t fs_res = lv_fs_dir_open(&dir, slides_path);
if(fs_res == LV_FS_RES_OK) {
fs_res = lv_fs_dir_close(&dir);
LV_ASSERT(fs_res == LV_FS_RES_OK);
c->about_slides_dir_exists = true;
for(int32_t i = 1; ; i++) {
char buf[256];
lv_snprintf(buf, sizeof(buf), "%s/Slide%"LV_PRId32".png", slides_path, i);
lv_fs_file_t file;
fs_res = lv_fs_open(&file, buf, LV_FS_MODE_RD);
if(fs_res != LV_FS_RES_OK) {
break;
}
fs_res = lv_fs_close(&file);
LV_ASSERT(fs_res == LV_FS_RES_OK);
lv_image_header_t header;
lv_result_t res = lv_image_decoder_get_info(buf, &header);
if(res == LV_RESULT_INVALID) {
LV_LOG_WARN("Couldn't read the header info of slide image");
continue;
}
/* the ratio of a slide's height to the display's height will be 9:16 */
int32_t scale = (9 * 256 * vres) / (16 * header.h);
lv_image_dsc_t * loaded_draw_buf = lv_demo_high_res_image_preload(buf, LV_COLOR_FORMAT_NATIVE, scale);
if(loaded_draw_buf == NULL) continue;
lv_array_push_back(&c->about_slides_array, &loaded_draw_buf);
if(scale != LV_SCALE_NONE) LV_LOG_INFO("A slide was scaled by %"LV_PRId32" (256 means 1:1)", scale);
}
}
return base_obj;
}
lv_obj_t * lv_demo_high_res_simple_container_create(lv_obj_t * parent, bool vertical, int32_t pad,
lv_flex_align_t align_cross_place)
{
lv_obj_t * obj = lv_obj_create(parent);
lv_obj_remove_style_all(obj);
lv_obj_set_size(obj, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
if(vertical) {
lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_COLUMN);
lv_obj_set_style_pad_row(obj, pad, 0);
}
else {
lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_ROW);
lv_obj_set_style_pad_column(obj, pad, 0);
}
lv_obj_set_flex_align(obj, LV_FLEX_ALIGN_START, align_cross_place, align_cross_place);
return obj;
}
void lv_demo_high_res_label_bind_temperature(lv_obj_t * label, lv_subject_t * subject, lv_demo_high_res_ctx_t * c)
{
lv_obj_set_user_data(label, c);
lv_subject_add_observer_obj(subject, label_text_temperature_cb, label, subject);
lv_subject_add_observer_obj(&c->temperature_units_are_celsius, label_text_temperature_cb, label, subject);
}
void lv_demo_high_res_theme_observer_image_src_cb(lv_observer_t * observer, lv_subject_t * subject)
{
lv_obj_t * obj = lv_observer_get_target_obj(observer);
lv_image_dsc_t ** pair = lv_observer_get_user_data(observer);
const lv_demo_high_res_theme_t * th = lv_subject_get_pointer(subject);
if(th == &lv_demo_high_res_theme_light) {
lv_image_set_src(obj, pair[0]);
}
else {
lv_image_set_src(obj, pair[1]);
}
}
void lv_demo_high_res_theme_observer_obj_bg_image_src_cb(lv_observer_t * observer, lv_subject_t * subject)
{
lv_obj_t * obj = lv_observer_get_target_obj(observer);
lv_image_dsc_t ** pair = lv_observer_get_user_data(observer);
const lv_demo_high_res_theme_t * th = lv_subject_get_pointer(subject);
if(th == &lv_demo_high_res_theme_light) {
lv_obj_set_style_bg_image_src(obj, pair[0], 0);
}
else {
lv_obj_set_style_bg_image_src(obj, pair[1], 0);
}
}
lv_image_dsc_t * lv_demo_high_res_image_preload(const void * src, lv_color_format_t cf, int32_t scale)
{
lv_image_header_t header;
lv_result_t res = lv_image_decoder_get_info(src, &header);
if(res == LV_RESULT_INVALID) {
LV_LOG_WARN("Couldn't read the header info of source");
return NULL;
}
lv_draw_buf_t * dest;
int32_t dest_w = header.w * scale / 256;
int32_t dest_h = header.h * scale / 256;
dest = lv_draw_buf_create(dest_w, dest_h, cf, LV_STRIDE_AUTO);
lv_obj_t * canvas = lv_canvas_create(lv_screen_active());
lv_canvas_set_draw_buf(canvas, dest);
lv_canvas_fill_bg(canvas, lv_color_hex3(0x000), LV_OPA_TRANSP);
lv_layer_t layer;
lv_canvas_init_layer(canvas, &layer);
lv_draw_image_dsc_t dsc;
lv_draw_image_dsc_init(&dsc);
dsc.src = src;
dsc.scale_x = scale;
dsc.scale_y = scale;
lv_area_t coords = {0, 0, header.w - 1, header.h - 1};
lv_draw_image(&layer, &dsc, &coords);
lv_canvas_finish_layer(canvas, &layer);
lv_obj_delete(canvas);
return (lv_image_dsc_t *) dest;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void init_fonts_sm(lv_style_t * fonts)
{
lv_style_set_text_font(&fonts[FONT_HEADING_MD], &font_lv_demo_high_res_roboto_slab_regular_20);
lv_style_set_text_font(&fonts[FONT_HEADING_LG], &font_lv_demo_high_res_roboto_slab_regular_40);
lv_style_set_text_font(&fonts[FONT_HEADING_XL], &font_lv_demo_high_res_roboto_slab_light_80);
lv_style_set_text_font(&fonts[FONT_HEADING_XXL], &font_lv_demo_high_res_roboto_slab_light_107);
lv_style_set_text_font(&fonts[FONT_LABEL_XS], &font_lv_demo_high_res_roboto_medium_8);
lv_style_set_text_line_space(&fonts[FONT_LABEL_XS],
30 * lv_font_get_line_height(&font_lv_demo_high_res_roboto_medium_8) / 100); /* +30% */
/* lv_style_set_text_letter_space(&fonts[FONT_LABEL_XS], 197 * lv_font_get_letter_space(&font_lv_demo_high_res_roboto_medium_8) / 200); */ /* -1.5% */
lv_style_set_text_font(&fonts[FONT_LABEL_SM], &font_lv_demo_high_res_roboto_medium_11);
lv_style_set_text_font(&fonts[FONT_LABEL_MD], &font_lv_demo_high_res_roboto_medium_16);
lv_style_set_text_font(&fonts[FONT_LABEL_LG], &font_lv_demo_high_res_roboto_slab_bold_20);
lv_style_set_text_font(&fonts[FONT_LABEL_XL], &font_lv_demo_high_res_roboto_slab_bold_24);
lv_style_set_text_font(&fonts[FONT_LABEL_2XL], &font_lv_demo_high_res_roboto_slab_bold_40);
}
static void init_fonts_md(lv_style_t * fonts)
{
lv_style_set_text_font(&fonts[FONT_HEADING_MD], &font_lv_demo_high_res_roboto_slab_regular_30);
lv_style_set_text_font(&fonts[FONT_HEADING_LG], &font_lv_demo_high_res_roboto_slab_regular_60);
lv_style_set_text_font(&fonts[FONT_HEADING_XL], &font_lv_demo_high_res_roboto_slab_light_120);
lv_style_set_text_font(&fonts[FONT_HEADING_XXL], &font_lv_demo_high_res_roboto_slab_light_160);
lv_style_set_text_font(&fonts[FONT_LABEL_XS], &font_lv_demo_high_res_roboto_medium_12);
lv_style_set_text_line_space(&fonts[FONT_LABEL_XS],
30 * lv_font_get_line_height(&font_lv_demo_high_res_roboto_medium_12) / 100); /* +30% */
/* lv_style_set_text_letter_space(&fonts[FONT_LABEL_XS], 197 * lv_font_get_letter_space(&font_lv_demo_high_res_roboto_medium_12) / 200); */ /* -1.5% */
lv_style_set_text_font(&fonts[FONT_LABEL_SM], &font_lv_demo_high_res_roboto_medium_16);
lv_style_set_text_font(&fonts[FONT_LABEL_MD], &font_lv_demo_high_res_roboto_medium_24);
lv_style_set_text_font(&fonts[FONT_LABEL_LG], &font_lv_demo_high_res_roboto_slab_bold_30);
lv_style_set_text_font(&fonts[FONT_LABEL_XL], &font_lv_demo_high_res_roboto_slab_bold_36);
lv_style_set_text_font(&fonts[FONT_LABEL_2XL], &font_lv_demo_high_res_roboto_slab_bold_60);
}
static void init_fonts_lg(lv_style_t * fonts)
{
lv_style_set_text_font(&fonts[FONT_HEADING_MD], &font_lv_demo_high_res_roboto_slab_regular_45);
lv_style_set_text_font(&fonts[FONT_HEADING_LG], &font_lv_demo_high_res_roboto_slab_regular_90);
lv_style_set_text_font(&fonts[FONT_HEADING_XL], &font_lv_demo_high_res_roboto_slab_light_180);
lv_style_set_text_font(&fonts[FONT_HEADING_XXL], &font_lv_demo_high_res_roboto_slab_light_240);
lv_style_set_text_font(&fonts[FONT_LABEL_XS], &font_lv_demo_high_res_roboto_medium_18);
lv_style_set_text_line_space(&fonts[FONT_LABEL_XS],
30 * lv_font_get_line_height(&font_lv_demo_high_res_roboto_medium_18) / 100); /* +30% */
/* lv_style_set_text_letter_space(&fonts[FONT_LABEL_XS], 197 * lv_font_get_letter_space(&font_lv_demo_high_res_roboto_medium_18) / 200); */ /* -1.5% */
lv_style_set_text_font(&fonts[FONT_LABEL_SM], &font_lv_demo_high_res_roboto_medium_24);
lv_style_set_text_font(&fonts[FONT_LABEL_MD], &font_lv_demo_high_res_roboto_medium_36);
lv_style_set_text_font(&fonts[FONT_LABEL_LG], &font_lv_demo_high_res_roboto_slab_bold_45);
lv_style_set_text_font(&fonts[FONT_LABEL_XL], &font_lv_demo_high_res_roboto_slab_bold_54);
lv_style_set_text_font(&fonts[FONT_LABEL_2XL], &font_lv_demo_high_res_roboto_slab_bold_90);
}
static void theme_observer_cb(lv_observer_t * observer, lv_subject_t * subject)
{
const lv_demo_high_res_theme_t * th = lv_subject_get_pointer(subject);
const lv_demo_high_res_theme_t * th_other = th == &lv_demo_high_res_theme_light ? &lv_demo_high_res_theme_dark :
&lv_demo_high_res_theme_light;
lv_demo_high_res_ctx_t * c = lv_observer_get_user_data(observer);
for(uint32_t i = 0; i < STYLE_COLOR_COUNT; i++) {
lv_color_t color = i == STYLE_COLOR_BASE ? th->base : th->accent;
lv_color_t color_inv = i == STYLE_COLOR_ACCENT ? th->accent : th_other->base;
lv_style_set_bg_color(&c->styles[i][STYLE_TYPE_OBJ], color);
lv_style_set_outline_color(&c->styles[i][STYLE_TYPE_OBJ], color);
lv_style_set_text_color(&c->styles[i][STYLE_TYPE_TEXT], color_inv);
lv_style_set_line_color(&c->styles[i][STYLE_TYPE_TEXT], color_inv);
lv_style_set_image_recolor_opa(&c->styles[i][STYLE_TYPE_A8_IMG], LV_OPA_COVER);
lv_style_set_image_recolor(&c->styles[i][STYLE_TYPE_A8_IMG], color_inv);
}
for(uint32_t i = 0; i < STYLE_COLOR_COUNT; i++) {
for(uint32_t j = 0; j < STYLE_TYPE_COUNT; j++) {
lv_obj_report_style_change(&c->styles[i][j]);
}
}
}
static void free_ctx_event_cb(lv_event_t * e)
{
lv_obj_t * base_obj = lv_event_get_target_obj(e);
lv_demo_high_res_ctx_t * c = lv_obj_get_user_data(base_obj);
lv_subject_deinit(&c->th);
for(uint32_t i = 0; i < IMG_COUNT; i++) {
lv_draw_buf_destroy((lv_draw_buf_t *)c->imgs[i]);
}
for(uint32_t i = 0; i < STYLE_COLOR_COUNT; i++) {
for(uint32_t j = 0; j < STYLE_TYPE_COUNT; j++) {
lv_style_reset(&c->styles[i][j]);
}
}
for(uint32_t i = 0; i < FONT_COUNT; i++) {
lv_style_reset(&c->fonts[i]);
}
lv_free(c->logo_path);
lv_free(c->slides_path);
lv_subject_deinit(&c->temperature_units_are_celsius);
lv_subject_deinit(&c->ev_charging_progress);
lv_subject_deinit(&c->smart_meter_selected_bar);
lv_demo_high_res_top_margin_deinit_subjects(c);
lv_subject_deinit(&c->subject_groups.time.group);
lv_subject_deinit(&c->subject_groups.date.group);
lv_subject_deinit(&c->subject_groups.wifi.group);
lv_subject_t * subjects = (lv_subject_t *) &c->api.subjects;
for(uint32_t i = 0; i < sizeof(c->api.subjects) / sizeof(lv_subject_t); i++) {
lv_subject_deinit(&subjects[i]);
}
uint32_t about_slides_count = lv_array_size(&c->about_slides_array);
for(uint32_t i = 0; i < about_slides_count; i++) {
lv_image_dsc_t ** slide = lv_array_at(&c->about_slides_array, i);
lv_draw_buf_destroy((lv_draw_buf_t *) *slide);
}
lv_array_deinit(&c->about_slides_array);
lv_free(c);
lv_obj_set_user_data(base_obj, NULL);
}
static void label_text_temperature_cb(lv_observer_t * observer, lv_subject_t * subject)
{
LV_UNUSED(subject);
lv_subject_t * temperature_subject = lv_observer_get_user_data(observer);
int32_t val = lv_subject_get_int(temperature_subject);
lv_obj_t * label = lv_observer_get_target_obj(observer);
lv_demo_high_res_ctx_t * c = lv_obj_get_user_data(label);
if(!lv_subject_get_int(&c->temperature_units_are_celsius)) {
/* convert to fahrenheit */
/* + 320 instead of 32 because temperatures in are tenths of a degree */
val = val * 9 / 5 + 320;
}
int32_t full = val / 10;
int32_t fraction = val % 10;
char buf[16];
if(fraction) {
lv_snprintf(buf, sizeof(buf), "%"PRId32".%"PRId32"\xc2\xb0", full, fraction);
}
else {
lv_snprintf(buf, sizeof(buf), "%"PRId32"\xc2\xb0", full);
}
lv_label_set_text(label, buf);
}
#endif /*LV_USE_DEMO_HIGH_RES*/
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