lvgl-rs/examples/demo/src/main.rs

118 lines
3.4 KiB
Rust

use embedded_graphics::prelude::*;
use embedded_graphics_simulator::{
BinaryColorTheme, OutputSettingsBuilder, SimulatorDisplay, SimulatorEvent, Window,
};
use lvgl;
use lvgl::Object;
use lvgl_sys;
use std::sync::mpsc;
use std::time::Duration;
fn main() -> Result<(), String> {
let mut display = SimulatorDisplay::new(Size::new(
lvgl_sys::LV_HOR_RES_MAX,
lvgl_sys::LV_VER_RES_MAX,
));
let output_settings = OutputSettingsBuilder::new()
.theme(BinaryColorTheme::OledBlue)
.build();
let mut window = Window::new("Hello World", &output_settings);
unsafe {
lvgl_sys::lv_init();
}
// Implement and register your display:
let mut display_driver = lvgl::DisplayDriver::new(&mut display);
// Create screen and widgets
let mut screen = display_driver.get_active_screen();
let font_roboto_28 = unsafe { &lvgl_sys::lv_font_roboto_28 };
let font_noto_sans_numeric_28 = unsafe { &noto_sans_numeric_80 };
let mut screen_style = lvgl::Style::new();
screen_style.set_body_main_color(lvgl::Color::from_rgb((0, 0, 0)));
screen_style.set_body_grad_color(lvgl::Color::from_rgb((0, 0, 0)));
screen.set_style(&mut screen_style);
let mut time = lvgl::Label::new(&mut screen);
let mut style_time = lvgl::Style::new();
style_time.set_text_font(font_noto_sans_numeric_28);
style_time.set_text_color(lvgl::Color::from_rgb((255, 255, 255)));
time.set_style(&mut style_time);
time.set_align(&mut screen, lvgl::Align::InLeftMid, 20, 0);
time.set_text("20:46\0");
time.set_width(240);
time.set_height(240);
let mut bt = lvgl::Label::new(&mut screen);
let mut style_bt = lvgl::Style::new();
style_bt.set_text_font(font_roboto_28);
let mut style_power = style_bt.clone();
bt.set_style(&mut style_bt);
bt.set_width(50);
bt.set_height(80);
bt.set_recolor(true);
bt.set_text("#5794f2 \u{F293}#\0");
bt.set_label_align(lvgl::LabelAlign::Left);
bt.set_align(&mut screen, lvgl::Align::InTopLeft, 0, 0);
let mut power = lvgl::Label::new(&mut screen);
power.set_style(&mut style_power);
power.set_recolor(true);
power.set_width(80);
power.set_height(20);
power.set_text("#fade2a 20%#\0");
power.set_label_align(lvgl::LabelAlign::Right);
power.set_align(&mut screen, lvgl::Align::InTopRight, 0, 0);
let (stop_ch, read_ch) = mpsc::channel();
let tick_thr = std::thread::spawn(move || loop {
::std::thread::sleep(Duration::from_millis(5));
unsafe {
lvgl_sys::lv_tick_inc(5);
}
if read_ch.try_recv().is_ok() {
break;
}
});
let mut i = 0;
'running: loop {
if i > 59 {
i = 0;
}
time.set_text(format!("21:{:02}\0", i).as_str());
i = 1 + i;
::std::thread::sleep(Duration::from_millis(
lvgl_sys::LV_DISP_DEF_REFR_PERIOD as u64,
));
unsafe {
lvgl_sys::lv_task_handler();
}
window.update(&display);
for event in window.events() {
match event {
SimulatorEvent::Quit => break 'running,
_ => {}
}
}
}
stop_ch.send(true).unwrap();
tick_thr.join().unwrap();
Ok(())
}
// Reference to native font for LittlevGL, defined in the file: "fonts_noto_sans_numeric_80.c"
extern "C" {
pub static mut noto_sans_numeric_80: lvgl_sys::lv_font_t;
}