2fae95bdfb
* Implement simple bar widget * Make it easier to create new examples * Add bar example * Add README to examples * Remove unnecessary imports
83 lines
2.2 KiB
Rust
83 lines
2.2 KiB
Rust
use embedded_graphics::pixelcolor::Rgb565;
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use embedded_graphics::prelude::*;
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use embedded_graphics_simulator::{
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OutputSettingsBuilder, SimulatorDisplay, SimulatorEvent, Window,
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};
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use lvgl::{self, widgets::Bar, Align, Color, DisplayDriver, Object, Style, UI};
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use lvgl_sys;
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use std::sync::{mpsc, Arc, Mutex};
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use std::thread::sleep;
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use std::time::Duration;
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fn main() -> Result<(), String> {
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let mut display: SimulatorDisplay<Rgb565> = SimulatorDisplay::new(Size::new(
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lvgl_sys::LV_HOR_RES_MAX,
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lvgl_sys::LV_VER_RES_MAX,
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));
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let output_settings = OutputSettingsBuilder::new().scale(2).build();
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let mut window = Window::new("Bar Example", &output_settings);
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let mut ui = UI::init().unwrap();
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// Implement and register your display:
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let display_driver = DisplayDriver::new(&mut display);
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ui.disp_drv_register(display_driver);
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// Create screen and widgets
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let mut screen = ui.scr_act();
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let mut screen_style = Style::new();
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screen_style.set_body_main_color(Color::from_rgb((0, 0, 0)));
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screen_style.set_body_grad_color(Color::from_rgb((0, 0, 0)));
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screen.set_style(screen_style);
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// Create the bar object
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let mut bar = Bar::new(&mut screen);
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bar.set_size(50, 175);
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bar.set_align(&mut screen, Align::Center, 0, 0);
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bar.set_range(0, 100);
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bar.set_value(0);
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let threaded_ui = Arc::new(Mutex::new(ui));
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let (stop_ch, read_ch) = mpsc::channel();
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let closure_ui = threaded_ui.clone();
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let tick_thr = std::thread::spawn(move || loop {
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let period = Duration::from_millis(5);
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closure_ui.lock().unwrap().tick_inc(period);
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sleep(period);
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if read_ch.try_recv().is_ok() {
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break;
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}
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});
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let mut i = 0;
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'running: loop {
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if i > 100 {
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i = 0;
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}
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bar.set_value(i);
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i += 1;
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sleep(Duration::from_millis(25));
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threaded_ui.lock().unwrap().task_handler();
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window.update(&display);
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for event in window.events() {
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match event {
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SimulatorEvent::Quit => break 'running,
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_ => {}
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}
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}
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}
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stop_ch.send(true).unwrap();
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tick_thr.join().unwrap();
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Ok(())
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}
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