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use termion::cursor::Goto;
use termion::event::Key;
use termion::input::TermRead;
use termion::raw::{IntoRawMode, RawTerminal};
use termion::screen::AlternateScreen;
use tui::backend::{Backend, TermionBackend};
use tui::layout::{Constraint, Direction, Layout, Rect};
use tui::style::{Color, Style};
use tui::widgets::{Block, Borders, List, Paragraph, SelectableList, Text, Widget};
use unicode_width::UnicodeWidthStr;
use crate::context::JoshutoContext;
// use crate::fs::JoshutoDirList;
pub struct TuiBackend {
pub terminal: tui::Terminal<TermionBackend<AlternateScreen<RawTerminal<std::io::Stdout>>>>,
}
impl TuiBackend {
pub fn new() -> std::io::Result<Self> {
let stdout = std::io::stdout().into_raw_mode()?;
let stdout = AlternateScreen::from(stdout);
let backend = TermionBackend::new(stdout);
let mut terminal = tui::Terminal::new(backend)?;
Ok(Self { terminal })
}
pub fn render(&mut self, context: &JoshutoContext) {
let curr_tab = context.curr_tab_ref();
let curr_list = curr_tab.curr_list_ref();
let parent_list = curr_tab.parent_list_ref();
let child_list = curr_tab.child_list_ref();
self.terminal.draw(|mut f| {
let f_size = f.size();
let constraints = match child_list {
Some(_) => [
Constraint::Ratio(1, 6),
Constraint::Ratio(2, 6),
Constraint::Ratio(3, 6),
],
None => [
Constraint::Ratio(1, 6),
Constraint::Ratio(5, 6),
Constraint::Ratio(0, 6),
],
};
let layout_rect = Layout::default()
.direction(Direction::Horizontal)
.constraints(constraints.as_ref())
.split(f_size);
if let Some(curr_list) = parent_list.as_ref() {
let list_name = "parent_list";
let list_style = Style::default().fg(tui::style::Color::LightBlue);
let selected_style = Style::default()
.fg(tui::style::Color::LightBlue)
.modifier(tui::style::Modifier::REVERSED);
SelectableList::default()
.block(Block::default().borders(Borders::ALL).title(list_name))
.items(&curr_list.contents)
.style(list_style)
.highlight_style(selected_style)
.select(curr_list.index)
.render(&mut f, layout_rect[0]);
}
if let Some(curr_list) = curr_list.as_ref() {
let list_name = "curr_list";
let list_style = Style::default().fg(tui::style::Color::LightBlue);
let selected_style = Style::default()
.fg(tui::style::Color::LightBlue)
.modifier(tui::style::Modifier::REVERSED);
SelectableList::default()
.block(Block::default().borders(Borders::ALL).title(list_name))
.items(&curr_list.contents)
.style(list_style)
.highlight_style(selected_style)
.select(curr_list.index)
.render(&mut f, layout_rect[1]);
}
if let Some(curr_list) = child_list.as_ref() {
let list_name = "child_list";
let list_style = Style::default().fg(tui::style::Color::LightBlue);
let selected_style = Style::default()
.fg(tui::style::Color::LightBlue)
.modifier(tui::style::Modifier::REVERSED);
SelectableList::default()
.block(Block::default().borders(Borders::ALL).title(list_name))
.items(&curr_list.contents)
.style(list_style)
.highlight_style(selected_style)
.select(curr_list.index)
.render(&mut f, layout_rect[2]);
}
});
}
}
pub fn rerender(context: &mut JoshutoContext) {}
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