107 lines
3 KiB
Rust
107 lines
3 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::{Arc, Label, LabelAlign};
|
|
use lvgl::{self, Align, Color, Part, State, UI};
|
|
use lvgl::{LvError, Widget};
|
|
use lvgl_sys;
|
|
use std::time::Instant;
|
|
|
|
fn mem_info() -> lvgl_sys::lv_mem_monitor_t {
|
|
let mut info = lvgl_sys::lv_mem_monitor_t {
|
|
total_size: 0,
|
|
free_cnt: 0,
|
|
free_size: 0,
|
|
free_biggest_size: 0,
|
|
used_cnt: 0,
|
|
max_used: 0,
|
|
used_pct: 0,
|
|
frag_pct: 0,
|
|
};
|
|
unsafe {
|
|
lvgl_sys::lv_mem_monitor(&mut info as *mut _);
|
|
}
|
|
info
|
|
}
|
|
|
|
fn main() -> Result<(), LvError> {
|
|
println!("meminfo init: {:?}", mem_info());
|
|
run_arc_demo()?;
|
|
println!("meminfo end: {:?}", mem_info());
|
|
Ok(())
|
|
}
|
|
|
|
fn run_arc_demo() -> 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("Arc 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((255, 255, 255)));
|
|
screen_style.set_radius(State::DEFAULT, 0);
|
|
screen.add_style(Part::Main, screen_style)?;
|
|
|
|
// Create the arc object
|
|
let mut arc = Arc::new(&mut screen)?;
|
|
arc.set_size(150, 150)?;
|
|
arc.set_align(&mut screen, Align::Center, 0, 10)?;
|
|
arc.set_start_angle(135)?;
|
|
arc.set_end_angle(135)?;
|
|
|
|
let mut loading_lbl = Label::new(&mut screen)?;
|
|
loading_lbl.set_text(CString::new("Loading...").unwrap().as_c_str())?;
|
|
loading_lbl.set_align(&mut arc, Align::OutTopMid, 0, -10)?;
|
|
loading_lbl.set_label_align(LabelAlign::Center)?;
|
|
|
|
let mut loading_style = Style::default();
|
|
loading_style.set_text_color(State::DEFAULT, Color::from_rgb((0, 0, 0)));
|
|
loading_lbl.add_style(Part::Main, loading_style)?;
|
|
|
|
let mut angle = 0;
|
|
let mut forward = true;
|
|
let mut i = 0;
|
|
|
|
let mut loop_started = Instant::now();
|
|
'running: loop {
|
|
if i > 270 {
|
|
forward = if forward { false } else { true };
|
|
i = 1;
|
|
println!("meminfo running: {:?}", mem_info());
|
|
}
|
|
angle = if forward { angle + 1 } else { angle - 1 };
|
|
arc.set_end_angle(angle + 135)?;
|
|
i += 1;
|
|
|
|
ui.task_handler();
|
|
window.update(ui.get_display_ref().unwrap());
|
|
|
|
for event in window.events() {
|
|
match event {
|
|
SimulatorEvent::Quit => break 'running,
|
|
_ => {}
|
|
}
|
|
}
|
|
|
|
ui.tick_inc(loop_started.elapsed());
|
|
loop_started = Instant::now();
|
|
}
|
|
|
|
Ok(())
|
|
}
|