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"c912b12f7454c6620635bbff3450962753834be2a594819bd5e945af18ec64bc" 722 | 723 | [[package]] 724 | name = "windows_x86_64_msvc" 725 | version = "0.32.0" 726 | source = "registry+https://github.com/rust-lang/crates.io-index" 727 | checksum = "504a2476202769977a040c6364301a3f65d0cc9e3fb08600b2bda150a0488316" 728 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "stock" 3 | version = "1.4.0" 4 | edition = "2021" 5 | 6 | [dependencies] 7 | #Log和SimpleLogger在TUI应用里看不到 8 | #log = "0.4" 9 | #simple_logger = "1.16" 10 | 11 | #crossterm支持windows,但性能比termion稍差，需要最新0.23版本，否则鼠标支持有问题 12 | tui = { version = "0.14", default-features = false, features = ['crossterm', 'serde'] } 13 | crossterm = { version = "0.23", features = [ "serde" ] } 14 | 15 | serde = {version = "1.0", features = ["derive"] } 16 | serde_json = "1.0" 17 | chrono = "0.4" 18 | 19 | # 解决tui里中文宽度的计算 20 | unicode-width = "0.1" 21 | 22 | # reqwest太大了3M, ureq也有2M, http_req只有300k 23 | http_req = "0.8" 24 | 25 | # 查询跨平台的通用目录位置 26 | dirs-next = "2.0" 27 | 28 | #lazy_static = "1.4.0" 29 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 使用Rust开发的股价查询终端应用： 2 | 3 | ![](images/screen.gif) 4 | 5 | ## 编译/运行 6 | ``` 7 | cargo build 8 | cargo run 9 | ``` 10 | 11 | 12 | ## License 13 | 14 | Copyright (c) 2017-present x1y9 15 | 16 | [MIT License](http://en.wikipedia.org/wiki/MIT_License) -------------------------------------------------------------------------------- /build.bat: -------------------------------------------------------------------------------- 1 | @setlocal enableDelayedExpansion 2 | @REM set LANG for grep run correctly 3 | @set LANG=zh_CN.UTF-8 4 | 5 | @if "%1"=="" goto do_help 6 | @if "%1"=="clean" goto do_clean 7 | @if "%1"=="version" goto do_version 8 | @if "%1"=="debug" goto do_debug 9 | @if "%1"=="release" goto do_release 10 | @if "%1"=="publish" goto do_publish 11 | 12 | :do_help 13 | @echo build script for android project 14 | @echo. 15 | @echo Build: build [debug^|release^|publish] 16 | @echo Clean: build clean 17 | @echo Version: build version [number] 18 | @goto end 19 | 20 | :do_debug 21 | cargo run 22 | @IF %ERRORLEVEL% NEQ 0 goto error_end 23 | @call toast debug-run 24 | @goto end 25 | 26 | :do_release 27 | cargo run --release 28 | @IF %ERRORLEVEL% NEQ 0 goto error_end 29 | @call toast release-run 30 | @goto end 31 | 32 | :do_publish 33 | @echo check uncommit files... 34 | @git diff-files --quiet 35 | @IF %ERRORLEVEL% NEQ 0 goto error_end 36 | cargo build --release 37 | @IF %ERRORLEVEL% NEQ 0 goto error_end 38 | for /f %%i in ('grep -m 1 -oP "name = ""\K([a-zA-Z0-9.]+)" Cargo.toml') do set PACKAGE=%%i 39 | for /f %%i in ('grep -m 1 -oP "version = ""\K([0-9.]+)" Cargo.toml') do set VERSION=%%i 40 | for /f %%i in ('git rev-parse --short HEAD') do set HASH=%%i 41 | @echo publish to %PACKAGE%-%VERSION%-%HASH%.exe 42 | copy target\release\%PACKAGE%.exe %PACKAGE%-%VERSION%-%HASH%.exe 43 | @call toast publish-build 44 | @goto end 45 | 46 | :do_clean 47 | cargo clean 48 | @goto end 49 | 50 | :do_version 51 | @if "%2"=="" ( 52 | @grep -m 1 -oP "version = ""\K([0-9.]+)" Cargo.toml 53 | ) else ( 54 | sed -i -E "s/version = ""([0-9.]+)""$/version = ""%2""/" Cargo.toml 55 | cargo build --release 56 | @IF %ERRORLEVEL% NEQ 0 goto error_end 57 | git commit -m "%2" -a 58 | ) 59 | @goto end 60 | 61 | :error_end 62 | @call toast build-fail 63 | @echo Oops... Something wrong! 64 | @ver /ERROR >NUL 2>&1 65 | 66 | :end -------------------------------------------------------------------------------- /images/screen.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/x1y9/rust-stock/e6bc59398e6b31b700eb6d9e484cc460d109ac70/images/screen.gif -------------------------------------------------------------------------------- /src/aio.rs: -------------------------------------------------------------------------------- 1 | use std::{sync::mpsc::{Sender, channel}}; 2 | 3 | #[derive(Clone)] 4 | pub struct Executor { 5 | task_sender: Sender, 6 | } 7 | pub enum Task { 8 | Println(String), 9 | Exit, 10 | 11 | } 12 | 13 | impl Executor { 14 | pub fn new() -> Self { 15 | let (sender, receiver) = channel(); 16 | std::thread::spawn(move || { 17 | loop { 18 | match receiver.recv() { 19 | Ok(task) => { 20 | match task { 21 | Task::Println(string) => println!("{}", string), 22 | Task::Exit => return 23 | } 24 | }, 25 | Err(_) => { 26 | return; 27 | } 28 | } 29 | } 30 | }); 31 | Executor { task_sender: sender } 32 | } 33 | 34 | pub fn println(&self, string: String) { 35 | self.task_sender.send(Task::Println(string)).unwrap() 36 | } 37 | } 38 | 39 | -------------------------------------------------------------------------------- /src/events.rs: -------------------------------------------------------------------------------- 1 | use crossterm::event::{KeyCode, Event, MouseEventKind}; 2 | 3 | use crate::{App, AppState, Stock}; 4 | 5 | //处理键盘、鼠标事件 6 | pub fn on_events(event:Event, app:&mut App) { 7 | let total = app.stocks.lock().unwrap().len(); 8 | let sel = app.stocks_state.selected().unwrap_or(0); 9 | let selsome = app.stocks_state.selected().is_some() && sel < total; 10 | match app.state { 11 | AppState::Normal => { 12 | if let Event::Key(key) = event { 13 | let code = key.code; 14 | if code == KeyCode::Char('q') { 15 | app.should_exit = true; 16 | } 17 | else if code == KeyCode::Char('r') { 18 | app.refresh_stocks(); 19 | } 20 | else if code == KeyCode::Char('n') { 21 | //新建stock 22 | app.state = AppState::Adding; 23 | app.input = String::new(); 24 | } 25 | else if code == KeyCode::Char('d') && selsome { 26 | //删除当前选中的stock 27 | app.stocks.lock().unwrap().remove(sel); 28 | app.save_stocks().unwrap(); 29 | app.stocks_state.select(None); 30 | } 31 | else if code == KeyCode::Char('u') && selsome && sel > 0 { 32 | //将选中stock往上移动一位 33 | app.stocks.lock().unwrap().swap(sel, sel -1); 34 | app.save_stocks().unwrap(); 35 | app.stocks_state.select(Some(sel - 1)); 36 | } 37 | else if code == KeyCode::Char('j') && selsome && sel < total - 1 { 38 | //将选中stock往下移动一位 39 | app.stocks.lock().unwrap().swap(sel, sel + 1); 40 | app.save_stocks().unwrap(); 41 | app.stocks_state.select(Some(sel + 1)); 42 | } 43 | else if code == KeyCode::Up && total > 0 { 44 | //注意这里如果不加判断直接用sel - 1, 在sel为0时会导致异常 45 | app.stocks_state.select(Some(if sel > 0 {sel - 1} else {0})); 46 | } 47 | else if code == KeyCode::Down && total > 0 { 48 | app.stocks_state.select(Some(if sel < total - 1 {sel + 1} else {sel})); 49 | } 50 | } 51 | else if let Event::Mouse(mouse) = event { 52 | if let MouseEventKind::Up(_button) = mouse.kind { 53 | let row = mouse.row as usize; 54 | //list是从第三行开始，所以要减去2, 这里本来还应该考虑list的滚动， 55 | // 但是app.stocks_state的滚动位置字段是private的，取不到。 56 | if row >= 2 && row < total + 2{ 57 | app.stocks_state.select(Some(row - 2)); 58 | } 59 | } 60 | } 61 | }, 62 | 63 | AppState::Adding => match event { 64 | Event::Key(key) => match key.code { 65 | KeyCode::Enter => { 66 | app.state = AppState::Normal; 67 | if app.input.len() > 0 { 68 | app.stocks.lock().unwrap().push(Stock::new(&app.input)); 69 | app.refresh_stocks(); 70 | app.save_stocks().unwrap(); 71 | } 72 | } 73 | KeyCode::Esc => { 74 | app.state = AppState::Normal; 75 | } 76 | KeyCode::Char(c) => { 77 | app.input.push(c); 78 | } 79 | KeyCode::Backspace => { 80 | app.input.pop(); 81 | } 82 | _ => {} 83 | }, 84 | _ => {}, 85 | } 86 | } 87 | } 88 | 89 | //处理定时事件 90 | pub fn on_tick(app:&mut App) { 91 | app.tick_count+=1; 92 | if app.tick_count % 60 == 0 { 93 | if let AppState::Normal = app.state { 94 | app.refresh_stocks(); 95 | } 96 | } 97 | } 98 | -------------------------------------------------------------------------------- /src/lib.rs: -------------------------------------------------------------------------------- 1 | use std::{io::Stdout, fs, collections::HashMap, sync::{Mutex, Arc}, thread}; 2 | 3 | use chrono::{DateTime, Local}; 4 | use http_req::request; 5 | use serde::{Serialize, Deserialize}; 6 | use serde_json::{Value, Map, json}; 7 | use tui::{backend::CrosstermBackend, widgets::ListState}; 8 | 9 | pub mod events; 10 | pub mod widget; 11 | pub mod aio; 12 | 13 | pub type DynResult = Result<(), Box>; 14 | pub type CrossTerminal = tui::Terminal>; 15 | pub type TerminalFrame<'a> = tui::Frame<'a, CrosstermBackend>; 16 | 17 | pub const DB_PATH: &str=".stocks.json"; 18 | 19 | #[derive(Serialize, Deserialize, Clone, Debug)] 20 | pub struct Stock { 21 | pub title: String, 22 | pub code: String, 23 | pub price: f64, 24 | pub percent: f64, 25 | pub open: f64, //今开 26 | pub yestclose: f64, //昨收 27 | pub high: f64, //最高 28 | pub low: f64, //最低 29 | //pub slice: Vec 30 | } 31 | 32 | impl Stock { 33 | pub fn new(code:&String) ->Self { 34 | Self { 35 | code: code.clone(), 36 | title: code.clone(), 37 | price:0.0, 38 | percent:0.0, 39 | open:0.0, 40 | yestclose:0.0, 41 | high:0.0, 42 | low:0.0, 43 | //slice:vec![], 44 | } 45 | } 46 | } 47 | 48 | pub enum AppState { 49 | Normal, 50 | Adding, 51 | } 52 | pub struct App { 53 | pub should_exit:bool, 54 | pub state:AppState, 55 | pub error:Arc>, 56 | pub input:String, 57 | pub stocks:Arc>>, 58 | //TUI的List控件需要这个state记录当前选中和滚动位置两个状态 59 | pub stocks_state:ListState, 60 | pub last_refresh:Arc>>, 61 | pub tick_count:u128, 62 | } 63 | 64 | impl App { 65 | pub fn new() -> Self { 66 | let mut app = Self { 67 | should_exit: false, 68 | state: AppState::Normal, 69 | input: String::new(), 70 | error: Arc::new(Mutex::new(String::new())), 71 | stocks: Arc::new(Mutex::new([].to_vec())), 72 | //ListState:default为未选择，因为可能stocks为空，所以不能自动选第一个 73 | stocks_state: ListState::default(), 74 | last_refresh: Arc::new(Mutex::new(Local::now())), 75 | tick_count: 0, 76 | }; 77 | app.load_stocks().unwrap_or_default(); 78 | app.refresh_stocks(); 79 | return app; 80 | } 81 | 82 | pub fn save_stocks(&self) -> DynResult{ 83 | let db=dirs_next::home_dir().unwrap().join(DB_PATH); 84 | //每个stock单独存一个对象，是考虑将来的扩展性 85 | let stocks = self.stocks.lock().unwrap(); 86 | let lists:Vec<_> = stocks.iter().map(|s| HashMap::from([("code", &s.code)])).collect(); 87 | fs::write(&db, serde_json::to_string(&HashMap::from([("stocks", lists)]))?)?; 88 | Ok(()) 89 | } 90 | 91 | pub fn load_stocks(&mut self) -> DynResult{ 92 | //用unwrap_or_default屏蔽文件不存在时的异常 93 | let content = fs::read_to_string(dirs_next::home_dir().unwrap().join(DB_PATH)).unwrap_or_default(); 94 | //如果直接转换stocks，必须所有key都对上, 兼容性不好 95 | //self.stocks = serde_json::from_str(&content).unwrap_or_default(); 96 | 97 | //先读成Map再转换，可以增加兼容性， 98 | let json: Map = serde_json::from_str(&content).unwrap_or_default(); 99 | let mut data = self.stocks.lock().unwrap(); 100 | data.clear(); 101 | data.append(&mut json.get("stocks").unwrap_or(&json!([])).as_array().unwrap().iter() 102 | .map(|s| Stock::new(&s.as_object().unwrap().get("code").unwrap().as_str().unwrap().to_string())) 103 | .collect()); 104 | 105 | Ok(()) 106 | } 107 | 108 | pub fn refresh_stocks(&mut self) { 109 | let stock_clone = self.stocks.clone(); 110 | let err_clone = self.error.clone(); 111 | let last_refresh_clone = self.last_refresh.clone(); 112 | let codes = self.get_codes(); 113 | if codes.len() > 0 { 114 | thread::spawn(move || { 115 | let mut writer = Vec::new(); 116 | let ret = request::get(format!("{}{}","http://api.money.126.net/data/feed/", codes), &mut writer); 117 | let mut locked_err = err_clone.lock().unwrap(); 118 | if let Err(err) = ret { 119 | *locked_err = format!("{:?}", err); 120 | } 121 | else { 122 | let content = String::from_utf8_lossy(&writer); 123 | if content.starts_with("_ntes_quote_callback") { 124 | let mut stocks = stock_clone.lock().unwrap(); 125 | //网易的返回包了一个js call，用skip,take,collect实现一个substring剥掉它 126 | let json: Map = serde_json::from_str(&content.chars().skip(21).take(content.len() - 23).collect::()).unwrap(); 127 | for stock in stocks.iter_mut() { 128 | //如果code不对,返回的json里不包括这个对象, 用unwrap_or生成一个空对象,防止异常 129 | let obj = json.get(&stock.code).unwrap_or(&json!({})).as_object().unwrap().to_owned(); 130 | stock.title = obj.get("name").unwrap_or(&json!(stock.code.clone())).as_str().unwrap().to_owned(); 131 | stock.price = obj.get("price").unwrap_or(&json!(0.0)).as_f64().unwrap(); 132 | stock.percent = obj.get("percent").unwrap_or(&json!(0.0)).as_f64().unwrap(); 133 | stock.open = obj.get("open").unwrap_or(&json!(0.0)).as_f64().unwrap(); 134 | stock.yestclose = obj.get("yestclose").unwrap_or(&json!(0.0)).as_f64().unwrap(); 135 | stock.high = obj.get("high").unwrap_or(&json!(0.0)).as_f64().unwrap(); 136 | stock.low = obj.get("low").unwrap_or(&json!(0.0)).as_f64().unwrap(); 137 | 138 | // if json.contains_key(&stock.code) { 139 | // let mut writer2 = Vec::new(); 140 | // request::get(format!("http://img1.money.126.net/data/hs/time/today/{}.json",stock.code), &mut writer2)?; 141 | // println!("{:?}", format!("http://img1.money.126.net/data/hs/time/today/{}.json",stock.code)); 142 | // let json2: Map = serde_json::from_str(&String::from_utf8_lossy(&writer2).to_string())?; 143 | // stock.slice = json2.get("data").unwrap().as_array().unwrap() 144 | // .iter().map(|item| item.as_array().unwrap().get(2).unwrap().as_f64().unwrap()) 145 | // .collect(); 146 | // } 147 | } 148 | let mut last_refresh = last_refresh_clone.lock().unwrap(); 149 | *last_refresh = Local::now(); 150 | *locked_err = String::new(); 151 | } 152 | else { 153 | *locked_err = String::from("服务器返回错误"); 154 | } 155 | } 156 | }); 157 | } 158 | } 159 | 160 | pub fn get_codes(&self) -> String { 161 | let codes:Vec = self.stocks.lock().unwrap() 162 | .iter() 163 | .map(|stock| stock.code.clone()) 164 | .collect(); 165 | codes.join(",") 166 | } 167 | } 168 | 169 | -------------------------------------------------------------------------------- /src/main.rs: -------------------------------------------------------------------------------- 1 | use std::{error::Error, time::{Instant, Duration}}; 2 | 3 | use stock::{DynResult, CrossTerminal, App, TerminalFrame, events, widget, AppState}; 4 | use tui::{Terminal, backend::CrosstermBackend, widgets}; 5 | use unicode_width::UnicodeWidthStr; 6 | 7 | 8 | fn main() -> DynResult{ 9 | let mut app = App::new(); 10 | let mut terminal = init_terminal()?; 11 | main_loop(&mut terminal, &mut app)?; 12 | close_terminal(terminal)?; 13 | 14 | Ok(()) 15 | } 16 | 17 | fn init_terminal() -> Result> { 18 | let mut stdout = std::io::stdout(); 19 | crossterm::terminal::enable_raw_mode()?; 20 | //必须先执行EnableMouseCapture后面才能支持鼠标事件 21 | crossterm::execute!(stdout, crossterm::terminal::EnterAlternateScreen, crossterm::event::EnableMouseCapture)?; 22 | let backend = CrosstermBackend::new(stdout); 23 | let mut terminal = Terminal::new(backend)?; 24 | terminal.clear()?; 25 | Ok(terminal) 26 | } 27 | 28 | fn close_terminal(mut terminal: CrossTerminal) -> DynResult{ 29 | crossterm::terminal::disable_raw_mode()?; 30 | crossterm::execute!(terminal.backend_mut(), crossterm::event::DisableMouseCapture, crossterm::terminal::LeaveAlternateScreen)?; 31 | Ok(()) 32 | } 33 | 34 | //主事件循环 35 | fn main_loop(terminal: &mut CrossTerminal, app: &mut App) -> DynResult { 36 | let mut last_tick = Instant::now(); 37 | while !app.should_exit { 38 | terminal.draw(|f| {on_draw(f, app);})?; 39 | 40 | if crossterm::event::poll(Duration::from_secs(1).checked_sub(last_tick.elapsed()).unwrap_or_default())? { 41 | events::on_events(crossterm::event::read()?, app); 42 | } 43 | else { 44 | events::on_tick(app); 45 | last_tick = Instant::now(); 46 | } 47 | } 48 | 49 | Ok(()) 50 | } 51 | 52 | fn on_draw(frame: &mut TerminalFrame, app: &mut App) { 53 | let chunks = widget::main_chunks(frame.size()); 54 | 55 | //list的render需要调render_stateful_widget,否则滚动状态不对,这里第一个参数不能是app,否则会和后面的mut stock_state冲突 56 | frame.render_stateful_widget(widget::stock_list(&app.stocks.lock().unwrap()), chunks[1], &mut app.stocks_state); 57 | //因为render stock_list时会修改滚动状态，后面如果要用到这个值，就需要先做list的render 58 | frame.render_widget(widget::title_bar(app, frame.size()), chunks[0]); 59 | frame.render_widget(widget::stock_detail(app), chunks[2]); 60 | frame.render_widget(widget::status_bar(app), chunks[3]); 61 | 62 | if let AppState::Adding = app.state { 63 | //popup需要先clear一下,否则下面的背景色会透上来 64 | frame.render_widget(widgets::Clear, chunks[4]); 65 | frame.render_widget(widget::stock_input(app), chunks[4]); 66 | 67 | //显示光标, width()接口依赖一个外部包,可以正确处理中文宽度 68 | frame.set_cursor(chunks[4].x + app.input.width() as u16 + 1, chunks[4].y + 1); 69 | } 70 | 71 | } -------------------------------------------------------------------------------- /src/widget.rs: -------------------------------------------------------------------------------- 1 | use tui::{layout::{Rect, Layout, Direction, Constraint, Alignment}, 2 | widgets::{Paragraph, Block, Borders, BorderType, List, ListItem}, 3 | style::{Style, Color, Modifier}, text::{Spans, Span}}; 4 | 5 | use crate::{App, Stock, AppState}; 6 | use unicode_width::UnicodeWidthStr; 7 | 8 | 9 | const VERSION:&str = env!("CARGO_PKG_VERSION"); 10 | 11 | //计算所有的屏幕窗口区域,供后续render使用 12 | pub fn main_chunks(area: Rect) -> Vec { 13 | let parent = Layout::default() 14 | .direction(Direction::Vertical) 15 | .constraints([ 16 | Constraint::Length(1), 17 | Constraint::Min(1), 18 | Constraint::Length(1), 19 | ].as_ref()) 20 | .split(area); 21 | 22 | let center = Layout::default() 23 | .direction(Direction::Horizontal) 24 | .margin(0) 25 | .constraints([ 26 | Constraint::Percentage(30), 27 | Constraint::Percentage(70), 28 | ].as_ref()) 29 | .split(parent[1]); 30 | 31 | //计算新建stock时的弹框位置 32 | let popup = Layout::default() 33 | .direction(Direction::Vertical) 34 | .constraints([ 35 | Constraint::Percentage(40), 36 | Constraint::Length(3), 37 | Constraint::Percentage(40), 38 | ].as_ref()) 39 | .split(area); 40 | 41 | let popline = Layout::default() 42 | .direction(Direction::Horizontal) 43 | .margin(0) 44 | .constraints([ 45 | Constraint::Percentage(10), 46 | Constraint::Percentage(80), 47 | Constraint::Percentage(10), 48 | ].as_ref()) 49 | .split(popup[1]); 50 | 51 | vec!(parent[0], center[0], center[1], parent[2], popline[1]) 52 | } 53 | 54 | pub fn stock_list(stocks: &Vec) -> List { 55 | let items: Vec<_> = stocks.iter() 56 | .map(|stock| { 57 | ListItem::new(Spans::from(vec![ 58 | Span::styled(format!("{:+.2}% ",stock.percent * 100.0), 59 | Style::default().fg(if stock.percent < 0.0 {Color::Green} else {Color::Red})), 60 | Span::styled(stock.title.clone(),Style::default()), 61 | ])) 62 | }).collect(); 63 | 64 | List::new(items) 65 | .block( 66 | Block::default() 67 | .borders(Borders::ALL) 68 | .style(Style::default().fg(Color::White)) 69 | .title("列表") 70 | .border_type(BorderType::Plain)) 71 | .highlight_style( 72 | Style::default() 73 | .bg(Color::Yellow) 74 | .fg(Color::Black) 75 | .add_modifier(Modifier::BOLD)) 76 | } 77 | 78 | pub fn stock_detail(app: &App) -> Paragraph { 79 | let mut info = String::new(); 80 | let sel = app.stocks_state.selected().unwrap_or(0); 81 | //这里要防止sel超出列表范围 82 | let stocks = app.stocks.lock().unwrap(); 83 | if app.stocks_state.selected().is_some() && sel < stocks.len() { 84 | let stock = stocks.get(sel).unwrap(); 85 | info = format!("代码:{}\n涨跌:{:+.2}%\n当前:{}\n今开:{}\n昨收:{}\n最高:{}\n最低:{}", 86 | stock.code, stock.percent * 100.0, stock.price, stock.open, stock.yestclose, stock.high, stock.low); 87 | } 88 | 89 | Paragraph::new(info) 90 | .alignment(Alignment::Center) 91 | .style(Style::default()) 92 | .block(Block::default().title("详情") 93 | .borders(Borders::ALL) 94 | .border_type(BorderType::Plain)) 95 | } 96 | 97 | pub fn stock_input(app: &App) -> Paragraph { 98 | Paragraph::new(app.input.as_ref()) 99 | .style(Style::default().fg(Color::Yellow)) 100 | .block(Block::default().borders(Borders::ALL).title("输入证券代码")) 101 | } 102 | 103 | pub fn title_bar(app: &App, rect: Rect) -> Paragraph { 104 | let left = format!("Stock v{}", VERSION); 105 | let error = app.error.lock().unwrap(); 106 | let right = if error.is_empty() { app.last_refresh.lock().unwrap().format("最后更新 %H:%M:%S").to_string() } else { error.clone() }; 107 | Paragraph::new(Spans::from(vec![ 108 | Span::raw(left.clone()), 109 | //使用checked_sub防止溢出 110 | Span::raw(" ".repeat((rect.width as usize).checked_sub(right.width() + left.width()).unwrap_or(0))), 111 | Span::styled(right,Style::default() 112 | .fg(if error.is_empty() { Color::White } else { Color::Red })), 113 | ])) 114 | .alignment(Alignment::Left) 115 | } 116 | 117 | pub fn status_bar(app: &mut App) -> Paragraph { 118 | Paragraph::new(match app.state { 119 | AppState::Normal => "退出[Q] | 新建[N] | 删除[D] | 刷新[R] | 上移[U] | 下移[J]", 120 | AppState::Adding => "确认[Enter] | 取消[ESC] | 上交所代码前需要加0，深市加1" 121 | }.to_string() 122 | ).alignment(Alignment::Left) 123 | } 124 | --------------------------------------------------------------------------------