108 lines
3.4 KiB
Rust
108 lines
3.4 KiB
Rust
use cstr_core::CString;
|
|
use embedded_graphics::pixelcolor::Rgb565;
|
|
use embedded_graphics::prelude::*;
|
|
use embedded_graphics_simulator::{
|
|
OutputSettingsBuilder, SimulatorDisplay, SimulatorEvent, Window,
|
|
};
|
|
use lvgl::style::Style;
|
|
use lvgl::widgets::{Btn, Label};
|
|
use lvgl::{self, Align, Color, Event, LvError, Part, State, Widget, UI};
|
|
use lvgl_sys;
|
|
use std::sync::{mpsc, Arc, Mutex};
|
|
use std::thread::sleep;
|
|
use std::time::{Duration, Instant};
|
|
|
|
fn main() -> Result<(), LvError> {
|
|
let display: SimulatorDisplay<Rgb565> = SimulatorDisplay::new(Size::new(
|
|
lvgl_sys::LV_HOR_RES_MAX,
|
|
lvgl_sys::LV_VER_RES_MAX,
|
|
));
|
|
|
|
let output_settings = OutputSettingsBuilder::new().scale(2).build();
|
|
let mut window = Window::new("Bar Example", &output_settings);
|
|
|
|
let mut ui = UI::init()?;
|
|
|
|
// Implement and register your display:
|
|
ui.disp_drv_register(display)?;
|
|
|
|
// Create screen and widgets
|
|
let mut screen = ui.scr_act()?;
|
|
|
|
let mut screen_style = Style::default();
|
|
screen_style.set_bg_color(State::DEFAULT, Color::from_rgb((0, 0, 0)));
|
|
screen.add_style(Part::Main, screen_style)?;
|
|
|
|
// Create the button
|
|
let mut button = Btn::new(&mut screen)?;
|
|
button.set_align(&mut screen, Align::InLeftMid, 30, 0)?;
|
|
button.set_size(180, 80)?;
|
|
let mut btn_lbl = Label::new(&mut button)?;
|
|
btn_lbl.set_text(CString::new("Click me!").unwrap().as_c_str())?;
|
|
|
|
let mut btn_state = false;
|
|
button.on_event(|mut btn, event| {
|
|
if let lvgl::Event::Clicked = event {
|
|
if btn_state {
|
|
let nt = CString::new("Click me!").unwrap();
|
|
btn_lbl.set_text(nt.as_c_str()).unwrap();
|
|
} else {
|
|
let nt = CString::new("Clicked!").unwrap();
|
|
btn_lbl.set_text(nt.as_c_str()).unwrap();
|
|
}
|
|
btn_state = !btn_state;
|
|
println!("Clicked! Inner..");
|
|
btn.toggle().unwrap();
|
|
}
|
|
})?;
|
|
|
|
let threaded_ui = Arc::new(Mutex::new(ui));
|
|
|
|
let (stop_ch, read_ch) = mpsc::channel();
|
|
let closure_ui = threaded_ui.clone();
|
|
let mut loop_started = Instant::now();
|
|
let tick_thr = std::thread::spawn(move || loop {
|
|
// Needs to be called periodically for LittlevGL internal timing calculations.
|
|
{
|
|
let mut ui = closure_ui.lock().unwrap();
|
|
ui.tick_inc(loop_started.elapsed());
|
|
}
|
|
|
|
sleep(Duration::from_millis(5));
|
|
if read_ch.try_recv().is_ok() {
|
|
break;
|
|
}
|
|
loop_started = Instant::now();
|
|
});
|
|
|
|
'running: loop {
|
|
threaded_ui.lock().unwrap().task_handler();
|
|
if let Some(disp) = threaded_ui.lock().unwrap().get_display_ref() {
|
|
window.update(disp);
|
|
}
|
|
for event in window.events() {
|
|
match event {
|
|
SimulatorEvent::MouseButtonUp {
|
|
mouse_btn: _,
|
|
point,
|
|
} => {
|
|
println!("Clicked on: {:?}", point);
|
|
// Send a event to the button directly
|
|
threaded_ui
|
|
.lock()
|
|
.unwrap()
|
|
.event_send(&mut button, Event::Clicked)?;
|
|
}
|
|
SimulatorEvent::Quit => break 'running,
|
|
_ => {}
|
|
}
|
|
}
|
|
|
|
sleep(Duration::from_millis(5));
|
|
}
|
|
|
|
stop_ch.send(true).unwrap();
|
|
tick_thr.join().unwrap();
|
|
|
|
Ok(())
|
|
}
|