118 lines
3.4 KiB
Rust
118 lines
3.4 KiB
Rust
use cstr_core::CString;
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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::display::Display;
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use lvgl::style::Style;
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use lvgl::widgets::{Arc, Label, LabelAlign};
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use lvgl::{self, Align, Color, Part, State};
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use lvgl::{LvError, Widget};
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use lvgl_sys;
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use parking_lot::Mutex;
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use std::sync::Arc as SyncArc;
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use std::thread;
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use std::time::{Duration, Instant};
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fn mem_info() -> lvgl_sys::lv_mem_monitor_t {
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let mut info = lvgl_sys::lv_mem_monitor_t {
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total_size: 0,
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free_cnt: 0,
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free_size: 0,
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free_biggest_size: 0,
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used_cnt: 0,
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max_used: 0,
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used_pct: 0,
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frag_pct: 0,
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};
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unsafe {
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lvgl_sys::lv_mem_monitor(&mut info as *mut _);
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}
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info
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}
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fn main() -> Result<(), LvError> {
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println!("meminfo init: {:?}", mem_info());
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run_arc_demo()?;
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println!("meminfo end: {:?}", mem_info());
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Ok(())
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}
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fn run_arc_demo() -> Result<(), LvError> {
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lvgl::init();
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let embedded_graphics_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("Arc Example", &output_settings);
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let shared_native_display = SyncArc::new(Mutex::new(embedded_graphics_display));
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let display = Display::register_shared(&shared_native_display)?;
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let mut screen = display.get_str_act()?;
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let mut screen_style = Style::default();
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screen_style.set_bg_color(State::DEFAULT, Color::from_rgb((255, 255, 255)));
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screen_style.set_radius(State::DEFAULT, 0);
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screen.add_style(Part::Main, &mut screen_style)?;
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// Create the arc object
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let mut arc = Arc::new()?;
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arc.set_size(150, 150)?;
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arc.set_align(&mut screen, Align::Center, 0, 10)?;
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arc.set_start_angle(135)?;
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arc.set_end_angle(135)?;
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let mut loading_lbl = Label::new()?;
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loading_lbl.set_text(CString::new("Loading...").unwrap().as_c_str())?;
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loading_lbl.set_align(&mut arc, Align::OutTopMid, 0, -10)?;
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loading_lbl.set_label_align(LabelAlign::Center)?;
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let mut loading_style = Style::default();
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loading_style.set_text_color(State::DEFAULT, Color::from_rgb((0, 0, 0)));
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loading_lbl.add_style(Part::Main, &mut loading_style)?;
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let mut angle = 0;
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let mut forward = true;
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let mut i = 0;
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// LVGL timer thread
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thread::spawn(|| {
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let interval = Duration::from_millis(5);
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loop {
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thread::sleep(interval);
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lvgl::tick_inc(interval);
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}
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});
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'running: loop {
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if i > 270 {
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forward = if forward { false } else { true };
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i = 1;
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println!("mem info running: {:?}", mem_info());
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}
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angle = if forward { angle + 1 } else { angle - 1 };
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arc.set_end_angle(angle + 135)?;
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i += 1;
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lvgl::task_handler();
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{
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let eg_display = shared_native_display.lock();
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window.update(&eg_display);
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}
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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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thread::sleep(Duration::from_millis(15));
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}
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Ok(())
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}
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