90 lines
2.9 KiB
Rust
90 lines
2.9 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::style::{Opacity, Style};
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use lvgl::widgets::Gauge;
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use lvgl::{self, Align, Color, LvError, Part, State, Widget, UI};
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use lvgl_sys;
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use std::time::Instant;
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fn main() -> Result<(), LvError> {
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let 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("Gauge Example", &output_settings);
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let mut ui = UI::init()?;
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// Implement and register your display:
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ui.disp_drv_register(display)?;
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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::default();
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screen_style.set_bg_color(State::DEFAULT, Color::from_rgb((0, 0, 0)));
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screen.add_style(Part::Main, screen_style)?;
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// Create the gauge
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let mut gauge_style = Style::default();
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// Set a background color and a radius
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gauge_style.set_radius(State::DEFAULT, 5);
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gauge_style.set_bg_opa(State::DEFAULT, Opacity::OPA_COVER);
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gauge_style.set_bg_color(State::DEFAULT, Color::from_rgb((192, 192, 192)));
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// Set some paddings
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gauge_style.set_pad_inner(State::DEFAULT, 20);
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gauge_style.set_pad_top(State::DEFAULT, 20);
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gauge_style.set_pad_left(State::DEFAULT, 5);
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gauge_style.set_pad_right(State::DEFAULT, 5);
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gauge_style.set_scale_end_color(State::DEFAULT, Color::from_rgb((255, 0, 0)));
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gauge_style.set_line_color(State::DEFAULT, Color::from_rgb((255, 255, 255)));
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gauge_style.set_scale_grad_color(State::DEFAULT, Color::from_rgb((0, 0, 255)));
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gauge_style.set_line_width(State::DEFAULT, 2);
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gauge_style.set_scale_end_line_width(State::DEFAULT, 4);
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gauge_style.set_scale_end_border_width(State::DEFAULT, 4);
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let mut gauge = Gauge::new(&mut screen)?;
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gauge.add_style(Part::Main, gauge_style)?;
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gauge.set_align(&mut screen, Align::Center, 0, 0)?;
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gauge.set_value(0, 50)?;
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let mut i = 0;
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let mut loop_started = Instant::now();
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'running: loop {
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gauge.set_value(0, i)?;
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ui.task_handler();
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window.update(ui.get_display_ref().unwrap());
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for event in window.events() {
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match event {
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SimulatorEvent::MouseButtonUp {
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mouse_btn: _,
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point,
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} => {
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println!("Clicked on: {:?}", point);
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}
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SimulatorEvent::Quit => break 'running,
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_ => {}
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}
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}
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if i > 99 {
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i = 0;
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} else {
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i = i + 1;
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}
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ui.tick_inc(loop_started.elapsed());
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loop_started = Instant::now();
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}
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Ok(())
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}
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