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* Introduce a common event handler in order to focus on the drawing part * Remove deprecated custom termion backends
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,84 +1,110 @@ | ||
| extern crate failure; | ||
| extern crate termion; | ||
| extern crate tui; | ||
|
|
||
| use std::io; | ||
| use termion::event; | ||
| use termion::input::TermRead; | ||
| #[allow(dead_code)] | ||
| mod util; | ||
|
|
||
| use tui::backend::MouseBackend; | ||
| use std::io; | ||
| use termion::event::Key; | ||
| use termion::input::MouseTerminal; | ||
| use termion::raw::IntoRawMode; | ||
| use termion::screen::AlternateScreen; | ||
| use tui::backend::TermionBackend; | ||
| use tui::layout::{Constraint, Direction, Layout, Rect}; | ||
| use tui::style::{Color, Modifier, Style}; | ||
| use tui::widgets::{Block, Borders, Widget}; | ||
| use tui::Terminal; | ||
|
|
||
| fn main() { | ||
| let mut terminal = Terminal::new(MouseBackend::new().unwrap()).unwrap(); | ||
| let stdin = io::stdin(); | ||
| terminal.clear().unwrap(); | ||
| terminal.hide_cursor().unwrap(); | ||
| use util::event::{Event, Events}; | ||
|
|
||
| let mut term_size = terminal.size().unwrap(); | ||
| draw(&mut terminal, term_size).unwrap(); | ||
| for c in stdin.keys() { | ||
| let size = terminal.size().unwrap(); | ||
| if term_size != size { | ||
| terminal.resize(size).unwrap(); | ||
| term_size = size; | ||
| } | ||
| draw(&mut terminal, term_size).unwrap(); | ||
| let evt = c.unwrap(); | ||
| if evt == event::Key::Char('q') { | ||
| break; | ||
| struct App { | ||
| size: Rect, | ||
| } | ||
|
|
||
| impl Default for App { | ||
| fn default() -> App { | ||
| App { | ||
| size: Rect::default(), | ||
| } | ||
| } | ||
| terminal.show_cursor().unwrap(); | ||
| } | ||
|
|
||
| fn draw(t: &mut Terminal<MouseBackend>, size: Rect) -> Result<(), io::Error> { | ||
| t.draw(|mut f| { | ||
| // Wrapping block for a group | ||
| // Just draw the block and the group on the same area and build the group | ||
| // with at least a margin of 1 | ||
| Block::default().borders(Borders::ALL).render(&mut f, size); | ||
| let chunks = Layout::default() | ||
| .direction(Direction::Vertical) | ||
| .margin(4) | ||
| .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref()) | ||
| .split(size); | ||
| { | ||
| let chunks = Layout::default() | ||
| .direction(Direction::Horizontal) | ||
| .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref()) | ||
| .split(chunks[0]); | ||
| Block::default() | ||
| .title("With background") | ||
| .title_style(Style::default().fg(Color::Yellow)) | ||
| .style(Style::default().bg(Color::Green)) | ||
| .render(&mut f, chunks[0]); | ||
| Block::default() | ||
| .title("Styled title") | ||
| .title_style( | ||
| Style::default() | ||
| .fg(Color::White) | ||
| .bg(Color::Red) | ||
| .modifier(Modifier::Bold), | ||
| ) | ||
| .render(&mut f, chunks[1]); | ||
| fn main() -> Result<(), failure::Error> { | ||
| // Terminal initialization | ||
| let stdout = io::stdout().into_raw_mode()?; | ||
| let stdout = MouseTerminal::from(stdout); | ||
| let stdout = AlternateScreen::from(stdout); | ||
| let backend = TermionBackend::new(stdout); | ||
| let mut terminal = Terminal::new(backend)?; | ||
| terminal.hide_cursor()?; | ||
|
|
||
| // Create default app state | ||
| let mut app = App::default(); | ||
|
|
||
| // Setup event handlers | ||
| let events = Events::new(); | ||
|
|
||
| loop { | ||
| let size = terminal.size()?; | ||
| if app.size != size { | ||
| terminal.resize(size)?; | ||
| app.size = size; | ||
| } | ||
| { | ||
|
|
||
| terminal.draw(|mut f| { | ||
| // Wrapping block for a group | ||
| // Just draw the block and the group on the same area and build the group | ||
| // with at least a margin of 1 | ||
| Block::default().borders(Borders::ALL).render(&mut f, size); | ||
| let chunks = Layout::default() | ||
| .direction(Direction::Horizontal) | ||
| .direction(Direction::Vertical) | ||
| .margin(4) | ||
| .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref()) | ||
| .split(chunks[1]); | ||
| Block::default() | ||
| .title("With borders") | ||
| .borders(Borders::ALL) | ||
| .render(&mut f, chunks[0]); | ||
| Block::default() | ||
| .title("With styled borders") | ||
| .border_style(Style::default().fg(Color::Cyan)) | ||
| .borders(Borders::LEFT | Borders::RIGHT) | ||
| .render(&mut f, chunks[1]); | ||
| .split(app.size); | ||
| { | ||
| let chunks = Layout::default() | ||
| .direction(Direction::Horizontal) | ||
| .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref()) | ||
| .split(chunks[0]); | ||
| Block::default() | ||
| .title("With background") | ||
| .title_style(Style::default().fg(Color::Yellow)) | ||
| .style(Style::default().bg(Color::Green)) | ||
| .render(&mut f, chunks[0]); | ||
| Block::default() | ||
| .title("Styled title") | ||
| .title_style( | ||
| Style::default() | ||
| .fg(Color::White) | ||
| .bg(Color::Red) | ||
| .modifier(Modifier::Bold), | ||
| ).render(&mut f, chunks[1]); | ||
| } | ||
| { | ||
| let chunks = Layout::default() | ||
| .direction(Direction::Horizontal) | ||
| .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref()) | ||
| .split(chunks[1]); | ||
| Block::default() | ||
| .title("With borders") | ||
| .borders(Borders::ALL) | ||
| .render(&mut f, chunks[0]); | ||
| Block::default() | ||
| .title("With styled borders") | ||
| .border_style(Style::default().fg(Color::Cyan)) | ||
| .borders(Borders::LEFT | Borders::RIGHT) | ||
| .render(&mut f, chunks[1]); | ||
| } | ||
| })?; | ||
|
|
||
| match events.next()? { | ||
| Event::Input(key) => if key == Key::Char('q') { | ||
| break; | ||
| }, | ||
| _ => {} | ||
| } | ||
| }) | ||
| } | ||
| terminal.show_cursor()?; | ||
| Ok(()) | ||
| } |
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