use embedded_graphics::pixelcolor::Rgb565; use embedded_graphics::prelude::*; use embedded_graphics_simulator::{ OutputSettingsBuilder, SimulatorDisplay, SimulatorEvent, Window, }; use lvgl::style::{Opacity, Style}; use lvgl::widgets::Gauge; use lvgl::{self, Align, Color, LvError, Part, State, Widget, UI}; use lvgl_sys; use std::time::Instant; fn main() -> Result<(), LvError> { let display: SimulatorDisplay = 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("Gauge 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 gauge let mut gauge_style = Style::default(); // Set a background color and a radius gauge_style.set_radius(State::DEFAULT, 5); gauge_style.set_bg_opa(State::DEFAULT, Opacity::OPA_COVER); gauge_style.set_bg_color(State::DEFAULT, Color::from_rgb((192, 192, 192))); // Set some paddings gauge_style.set_pad_inner(State::DEFAULT, 20); gauge_style.set_pad_top(State::DEFAULT, 20); gauge_style.set_pad_left(State::DEFAULT, 5); gauge_style.set_pad_right(State::DEFAULT, 5); gauge_style.set_scale_end_color(State::DEFAULT, Color::from_rgb((255, 0, 0))); gauge_style.set_line_color(State::DEFAULT, Color::from_rgb((255, 255, 255))); gauge_style.set_scale_grad_color(State::DEFAULT, Color::from_rgb((0, 0, 255))); gauge_style.set_line_width(State::DEFAULT, 2); gauge_style.set_scale_end_line_width(State::DEFAULT, 4); gauge_style.set_scale_end_border_width(State::DEFAULT, 4); let mut gauge = Gauge::new(&mut screen)?; gauge.add_style(Part::Main, gauge_style)?; gauge.set_align(&mut screen, Align::Center, 0, 0)?; gauge.set_value(0, 50)?; let mut i = 0; let mut loop_started = Instant::now(); 'running: loop { gauge.set_value(0, i)?; ui.task_handler(); window.update(ui.get_display_ref().unwrap()); for event in window.events() { match event { SimulatorEvent::MouseButtonUp { mouse_btn: _, point, } => { println!("Clicked on: {:?}", point); } SimulatorEvent::Quit => break 'running, _ => {} } } if i > 99 { i = 0; } else { i = i + 1; } ui.tick_inc(loop_started.elapsed()); loop_started = Instant::now(); } Ok(()) }