| #[allow(dead_code)] |
| mod util; |
| |
| use crate::util::event::{Event, Events}; |
| use std::{error::Error, io}; |
| use termion::{event::Key, input::MouseTerminal, raw::IntoRawMode, screen::AlternateScreen}; |
| use tui::{ |
| backend::TermionBackend, |
| layout::{Alignment, Constraint, Direction, Layout, Rect}, |
| style::{Color, Modifier, Style}, |
| text::{Span, Spans}, |
| widgets::{Block, Borders, Clear, Paragraph, Wrap}, |
| Terminal, |
| }; |
| |
| /// helper function to create a centered rect using up |
| /// certain percentage of the available rect `r` |
| fn centered_rect(percent_x: u16, percent_y: u16, r: Rect) -> Rect { |
| let popup_layout = Layout::default() |
| .direction(Direction::Vertical) |
| .constraints( |
| [ |
| Constraint::Percentage((100 - percent_y) / 2), |
| Constraint::Percentage(percent_y), |
| Constraint::Percentage((100 - percent_y) / 2), |
| ] |
| .as_ref(), |
| ) |
| .split(r); |
| |
| Layout::default() |
| .direction(Direction::Horizontal) |
| .constraints( |
| [ |
| Constraint::Percentage((100 - percent_x) / 2), |
| Constraint::Percentage(percent_x), |
| Constraint::Percentage((100 - percent_x) / 2), |
| ] |
| .as_ref(), |
| ) |
| .split(popup_layout[1])[1] |
| } |
| |
| fn main() -> Result<(), Box<dyn 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)?; |
| |
| let events = Events::new(); |
| |
| loop { |
| terminal.draw(|f| { |
| let size = f.size(); |
| |
| let chunks = Layout::default() |
| .direction(Direction::Horizontal) |
| .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref()) |
| .split(size); |
| |
| let s = "Veeeeeeeeeeeeeeeery loooooooooooooooooong striiiiiiiiiiiiiiiiiiiiiiiiiing. "; |
| let mut long_line = s.repeat(usize::from(size.width)*usize::from(size.height)/300); |
| long_line.push('\n'); |
| |
| let text = vec![ |
| Spans::from("This is a line "), |
| Spans::from(Span::styled("This is a line ", Style::default().fg(Color::Red))), |
| Spans::from(Span::styled("This is a line", Style::default().bg(Color::Blue))), |
| Spans::from(Span::styled( |
| "This is a longer line\n", |
| Style::default().add_modifier(Modifier::CROSSED_OUT), |
| )), |
| Spans::from(Span::styled(&long_line, Style::default().bg(Color::Green))), |
| Spans::from(Span::styled( |
| "This is a line\n", |
| Style::default().fg(Color::Green).add_modifier(Modifier::ITALIC), |
| )), |
| ]; |
| |
| let paragraph = Paragraph::new(text.clone()) |
| .block(Block::default().title("Left Block").borders(Borders::ALL)) |
| .alignment(Alignment::Left).wrap(Wrap { trim: true }); |
| f.render_widget(paragraph, chunks[0]); |
| |
| let paragraph = Paragraph::new(text) |
| .block(Block::default().title("Right Block").borders(Borders::ALL)) |
| .alignment(Alignment::Left).wrap(Wrap { trim: true }); |
| f.render_widget(paragraph, chunks[1]); |
| |
| let block = Block::default().title("Popup").borders(Borders::ALL); |
| let area = centered_rect(60, 20, size); |
| f.render_widget(Clear, area); //this clears out the background |
| f.render_widget(block, area); |
| })?; |
| |
| if let Event::Input(input) = events.next()? { |
| if let Key::Char('q') = input { |
| break; |
| } |
| } |
| } |
| |
| Ok(()) |
| } |