环境
- Time 2022-08-11
- Rust 1.62.0
- Tui 0.18.0
前言
说明
参考:https://github.com/fdehau/tui-rs/blob/master/examples/gauge.rs
目标
使用 tui-rs
显示进度条。
定义数据
struct App {
progress1: u16,
}
impl App {
fn new() -> App {
App { progress1: 0 }
}
fn on_tick(&mut self) {
self.progress1 += 1;
if self.progress1 > 100 {
self.progress1 = 0;
}
}
}
渲染进度条
fn ui<B: Backend>(frame: &mut Frame<B>, app: &App) {
let gauge = widgets::Gauge::default()
.block(Block::default().title("进度条").borders(Borders::ALL))
.gauge_style(Style::default().fg(Color::Yellow))
.percent(app.progress1);
frame.render_widget(gauge, frame.size());
}
总结
使用 tui-rs
渲染进度条。
附录
源码
use anyhow::{Context, Result};
use crossterm::{event, terminal, ExecutableCommand};
use style::{Color, Style};
use tui::backend::{Backend, CrosstermBackend};
use tui::{style, widgets, Frame, Terminal};
use widgets::{Block, Borders};
pub fn main() -> Result<()> {
terminal::enable_raw_mode()?;
let mut backend = CrosstermBackend::new(std::io::stdout());
backend
.execute(terminal::EnterAlternateScreen)?
.execute(terminal::Clear(terminal::ClearType::All))?
.hide_cursor()?;
let mut terminal = tui::Terminal::new(backend)?;
run(&mut terminal)?;
terminal::disable_raw_mode()?;
terminal
.backend_mut()
.execute(terminal::Clear(terminal::ClearType::All))?
.execute(terminal::LeaveAlternateScreen)?
.show_cursor()
.context("重置控制台失败")
}
fn run<B: Backend>(terminal: &mut Terminal<B>) -> Result<()> {
let timeout = std::time::Duration::from_millis(500);
let mut app = App::new();
loop {
terminal.draw(|frame| ui(frame, &app))?;
if event::poll(timeout)? {
if let event::Event::Key(key) = event::read()? {
use event::KeyCode::{Char, Esc};
match key.code {
Char('q') | Char('Q') | Esc => return Ok(()),
_ => {}
}
}
}
app.on_tick();
}
}
struct App {
progress1: u16,
}
impl App {
fn new() -> App {
App { progress1: 0 }
}
fn on_tick(&mut self) {
self.progress1 += 1;
if self.progress1 > 100 {
self.progress1 = 0;
}
}
}
fn ui<B: Backend>(frame: &mut Frame<B>, app: &App) {
let gauge = widgets::Gauge::default()
.block(Block::default().title("进度条").borders(Borders::ALL))
.gauge_style(Style::default().fg(Color::Yellow))
.percent(app.progress1);
frame.render_widget(gauge, frame.size());
}
标签:mut,进度条,App,progress1,0056,self,terminal,Tui,frame
From: https://www.cnblogs.com/jiangbo4444/p/16746212.html