slint/demos/printerdemo_mcu/main.rs

// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: MIT

#![no_std]
#![cfg_attr(not(feature = "simulator"), no_main)]

extern crate alloc;

use alloc::vec::Vec;

use alloc::rc::Rc;
use slint::Model;

#[allow(unused_imports)]
use mcu_board_support::prelude::*;

slint::include_modules!();

struct PrinterQueueData {
    data: Rc<slint::VecModel<PrinterQueueItem>>,
    print_progress_timer: slint::Timer,
}

impl PrinterQueueData {
    fn push_job(&self, title: slint::SharedString) {
        self.data.push(PrinterQueueItem {
            status: "waiting".into(),
            progress: 0,
            title,
            owner: env!("CARGO_PKG_AUTHORS").into(),
            pages: 1,
            size: "100kB".into(),
            submission_date: "".into(),
        })
    }
}

#[mcu_board_support::entry]
fn main() -> ! {
    mcu_board_support::init();
    let main_window = MainWindow::new().unwrap();
    main_window.set_ink_levels(
        [
            InkLevel { color: slint::Color::from_rgb_u8(0, 255, 255), level: 0.40 },
            InkLevel { color: slint::Color::from_rgb_u8(255, 0, 255), level: 0.20 },
            InkLevel { color: slint::Color::from_rgb_u8(255, 255, 0), level: 0.50 },
            InkLevel { color: slint::Color::from_rgb_u8(0, 0, 0), level: 0.80 },
        ]
        .into(),
    );

    let default_queue: Vec<PrinterQueueItem> =
        main_window.global::<PrinterQueue>().get_printer_queue().iter().collect();
    let printer_queue = Rc::new(PrinterQueueData {
        data: Rc::new(slint::VecModel::from(default_queue.clone())),
        print_progress_timer: Default::default(),
    });
    main_window.global::<PrinterQueue>().set_printer_queue(printer_queue.data.clone().into());

    main_window.on_quit(move || {
        #[cfg(not(target_arch = "wasm32"))]
        slint::quit_event_loop().unwrap();
    });

    let printer_queue_copy = printer_queue.clone();
    main_window.global::<PrinterQueue>().on_start_job(move |title| {
        printer_queue_copy.push_job(title);
    });

    let printer_queue_copy = printer_queue.clone();
    main_window.global::<PrinterQueue>().on_cancel_job(move |idx| {
        printer_queue_copy.data.remove(idx as usize);
    });

    let printer_queue_weak = Rc::downgrade(&printer_queue);
    printer_queue.print_progress_timer.start(
        slint::TimerMode::Repeated,
        core::time::Duration::from_secs(1),
        move || {
            if let Some(printer_queue) = printer_queue_weak.upgrade() {
                if printer_queue.data.row_count() > 0 {
                    let mut top_item = printer_queue.data.row_data(0).unwrap();
                    top_item.progress += 1;
                    top_item.status = "printing".into();
                    if top_item.progress > 100 {
                        printer_queue.data.remove(0);
                        if printer_queue.data.row_count() == 0 {
                            return;
                        }
                        top_item = printer_queue.data.row_data(0).unwrap();
                    }
                    printer_queue.data.set_row_data(0, top_item);
                } else {
                    printer_queue.data.set_vec(default_queue.clone());
                }
            }
        },
    );

    main_window.run().unwrap();

    panic!("The MCU demo should not quit")
}