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use crossterm::{
event::{DisableMouseCapture, EnableMouseCapture},
execute,
terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
};
use std::io;
use tui::{
backend::{Backend, CrosstermBackend},
layout::{Constraint, Direction, Layout},
widgets::{List, ListItem, Paragraph},
Frame, Terminal,
};
use crate::Calculator;
impl Calculator {
pub fn draw<B: Backend>(&self, f: &mut Frame<B>) {
let chunks = Layout::default()
.direction(Direction::Vertical)
.constraints(
[
Constraint::Max(u16::MAX),
Constraint::Length(self.stack.len() as u16),
Constraint::Length(1),
]
.as_ref(),
)
.split(f.size());
let items: Vec<ListItem> = (self.stack)
.iter()
.map(|f| ListItem::new(format!("{}", f)))
.collect();
f.render_widget(List::new(items), chunks[1]);
f.render_widget(Paragraph::new(self.input_buffer.as_str()), chunks[2]);
}
}
pub fn init_terminal() -> Result<Terminal<CrosstermBackend<io::Stdout>>, io::Error> {
enable_raw_mode()?;
let mut stdout = io::stdout();
execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
let backend = CrosstermBackend::new(stdout);
Terminal::new(backend)
}
pub fn cleanup_terminal<B>(mut terminal: Terminal<B>) -> Result<(), io::Error>
where
B: Backend + io::Write,
{
disable_raw_mode()?;
execute!(
terminal.backend_mut(),
LeaveAlternateScreen,
DisableMouseCapture,
)?;
terminal.show_cursor()?;
Ok(())
}
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