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|
use crate::{
interactive::{
widgets::{fill_background_to_right, List, ListState},
DisplayOptions, SortMode,
},
sorted_entries,
traverse::{Tree, TreeIndex},
};
use itertools::Itertools;
use std::path::Path;
use tui::{
buffer::Buffer,
layout::Rect,
style::{Color, Style},
widgets::{Block, Borders, Text, Widget},
};
pub struct Entries<'a, 'b> {
pub tree: &'a Tree,
pub root: TreeIndex,
pub display: DisplayOptions,
pub sorting: SortMode,
pub selected: Option<TreeIndex>,
pub list: &'b mut ListState,
pub border_style: Style,
pub is_focussed: bool,
}
impl<'a, 'b> Widget for Entries<'a, 'b> {
fn draw(&mut self, area: Rect, buf: &mut Buffer) {
let Self {
tree,
root,
display,
sorting,
selected,
border_style,
list,
is_focussed,
} = self;
let is_top = |node_idx| {
tree.neighbors_directed(node_idx, petgraph::Incoming)
.next()
.is_none()
};
let path_of = |node_idx| crate::common::path_of(tree, node_idx);
let entries = sorted_entries(tree, *root, *sorting);
let total: u64 = entries.iter().map(|(_, w)| w.size).sum();
let title = match path_of(*root).to_string_lossy().to_string() {
ref p if p.is_empty() => Path::new(".")
.canonicalize()
.map(|p| p.to_string_lossy().to_string())
.unwrap_or_else(|_| String::from(".")),
p => p,
};
let title = format!(" {} ", title);
let block = Block::default()
.borders(Borders::ALL)
.border_style(*border_style)
.title(&title);
let offset = list
.update(
selected.map(|selected| {
entries
.iter()
.find_position(|(idx, _)| *idx == selected)
.map(|(idx, _)| idx)
.unwrap_or(0)
}),
block.inner(area).height as usize,
)
.start_index;
List {
block: Some(block),
items: entries.iter().skip(offset).map(|(node_idx, w)| {
let (is_selected, style) = match selected {
Some(idx) if *idx == *node_idx => (
true,
Style {
fg: Color::Black,
bg: if *is_focussed {
Color::White
} else {
Color::DarkGray
},
..Default::default()
},
),
_ => (
false,
Style {
fg: Color::White,
bg: Color::Reset,
..Default::default()
},
),
};
let path = path_of(*node_idx);
let bytes = Text::Styled(
format!(
"{:>byte_column_width$}",
display.byte_format.display(w.size).to_string(), // we would have to impl alignment/padding ourselves otherwise...
byte_column_width = display.byte_format.width()
)
.into(),
Style {
fg: match (is_selected, *is_focussed) {
(true, true) => Color::DarkGray,
(true, false) => Color::Black,
_ => Color::Green,
},
..style
},
);
let percentage = Text::Styled(
format!(
" |{}| ",
display.byte_vis.display(w.size as f32 / total as f32)
)
.into(),
style,
);
let name = Text::Styled(
fill_background_to_right(
format!(
"{prefix}{}",
w.name.to_string_lossy(),
prefix = if path.is_dir() && !is_top(*root) {
"/"
} else {
" "
}
),
area.width,
)
.into(),
Style {
fg: if path.is_dir() {
style.fg
} else {
if is_selected {
style.fg
} else {
Color::DarkGray
}
},
..style
},
);
let column_segments = vec![bytes, percentage, name];
column_segments
}),
}
.draw(area, buf);
}
}
|
