mirror of
https://github.com/atuinsh/atuin.git
synced 2024-11-22 00:03:49 +01:00
chore: assortment of cleanups
This commit is contained in:
parent
d18e1b59ef
commit
2f52b243d9
799
Cargo.lock
generated
799
Cargo.lock
generated
File diff suppressed because it is too large
Load Diff
@ -22,7 +22,7 @@ log = "0.4"
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chrono = { version = "0.4", features = ["serde"] }
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clap = { version = "4.0.18", features = ["derive"] }
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config = { version = "0.13", default-features = false, features = ["toml"] }
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directories = "4"
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directories = "5"
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eyre = "0.6"
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fs-err = "2.9"
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interim = { version = "0.1.0", features = ["chrono"] }
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@ -40,7 +40,7 @@ serde_json = { workspace = true }
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parse_duration = "2.1.1"
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async-trait = { workspace = true }
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itertools = { workspace = true }
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shellexpand = "2"
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shellexpand = "3"
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sqlx = { workspace = true, features = ["sqlite"] }
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minspan = "0.1.1"
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regex = "1.5.4"
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@ -78,6 +78,7 @@ colored = "2.0.0"
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bitflags = "1.3"
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cassowary = "0.3"
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unicode-segmentation = "1.2"
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tinyvec = "1.6.0"
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[dependencies.tracing-subscriber]
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version = "0.3"
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@ -39,8 +39,8 @@ impl ListState {
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impl<'a> StatefulWidget for HistoryList<'a> {
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type State = ListState;
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fn render(mut self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
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let list_area = self.block.take().map_or(area, |b| {
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fn render(&self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
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let list_area = self.block.as_ref().map_or(area, |b| {
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let inner_area = b.inner(area);
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b.render(area, buf);
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inner_area
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@ -23,6 +23,7 @@ use super::{
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engines::{SearchEngine, SearchState},
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history_list::{HistoryList, ListState, PREFIX_LENGTH},
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};
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use crate::command::client::search::engines;
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use crate::ratatui::{
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backend::{Backend, CrosstermBackend},
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layout::{Alignment, Constraint, Direction, Layout},
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@ -31,7 +32,6 @@ use crate::ratatui::{
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widgets::{Block, BorderType, Borders, Paragraph},
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Frame, Terminal, TerminalOptions, Viewport,
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};
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use crate::{command::client::search::engines, VERSION};
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const RETURN_ORIGINAL: usize = usize::MAX;
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const RETURN_QUERY: usize = usize::MAX - 1;
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@ -312,21 +312,19 @@ impl State {
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);
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}
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fn build_title(&mut self) -> Paragraph {
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let title = if self.update_needed.is_some() {
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let version = self.update_needed.clone().unwrap();
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fn build_title(&mut self) -> Paragraph<'static> {
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static PREFIX: &str = concat!(" Atuin v", env!("CARGO_PKG_VERSION"));
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Paragraph::new(Text::from(Span::styled(
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format!(" Atuin v{VERSION} - UPDATE AVAILABLE {version}"),
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Style::default().add_modifier(Modifier::BOLD).fg(Color::Red),
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)))
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} else {
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Paragraph::new(Text::from(Span::styled(
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format!(" Atuin v{VERSION}"),
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Style::default().add_modifier(Modifier::BOLD),
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)))
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};
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title
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let span = self.update_needed.as_ref().map_or_else(
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|| Span::styled(PREFIX, Style::default().add_modifier(Modifier::BOLD)),
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|update| {
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Span::styled(
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format!("{PREFIX} - UPDATE AVAILABLE {update}"),
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Style::default().add_modifier(Modifier::BOLD).fg(Color::Red),
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)
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},
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);
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Paragraph::new(Text::from(span))
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}
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#[allow(clippy::unused_self)]
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@ -3,11 +3,6 @@ use std::io;
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use crate::ratatui::buffer::Cell;
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use crate::ratatui::layout::Rect;
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#[cfg(feature = "termion")]
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mod termion;
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#[cfg(feature = "termion")]
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pub use self::termion::TermionBackend;
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mod crossterm;
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pub use self::crossterm::CrosstermBackend;
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@ -1,275 +0,0 @@
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use crate::{
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backend::{Backend, ClearType},
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buffer::Cell,
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layout::Rect,
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style::{Color, Modifier},
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};
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use std::{
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fmt,
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io::{self, Write},
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};
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pub struct TermionBackend<W>
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where
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W: Write,
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{
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stdout: W,
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}
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impl<W> TermionBackend<W>
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where
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W: Write,
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{
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pub fn new(stdout: W) -> TermionBackend<W> {
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TermionBackend { stdout }
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}
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}
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impl<W> Write for TermionBackend<W>
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where
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W: Write,
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{
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fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
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self.stdout.write(buf)
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}
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fn flush(&mut self) -> io::Result<()> {
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self.stdout.flush()
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}
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}
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impl<W> Backend for TermionBackend<W>
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where
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W: Write,
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{
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fn clear(&mut self) -> io::Result<()> {
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self.clear_region(ClearType::All)
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}
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fn clear_region(&mut self, clear_type: ClearType) -> io::Result<()> {
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match clear_type {
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ClearType::All => write!(self.stdout, "{}", termion::clear::All)?,
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ClearType::AfterCursor => write!(self.stdout, "{}", termion::clear::AfterCursor)?,
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ClearType::BeforeCursor => write!(self.stdout, "{}", termion::clear::BeforeCursor)?,
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ClearType::CurrentLine => write!(self.stdout, "{}", termion::clear::CurrentLine)?,
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ClearType::UntilNewLine => write!(self.stdout, "{}", termion::clear::UntilNewline)?,
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};
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self.stdout.flush()
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}
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fn append_lines(&mut self, n: u16) -> io::Result<()> {
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for _ in 0..n {
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writeln!(self.stdout)?;
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}
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self.stdout.flush()
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}
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/// Hides cursor
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fn hide_cursor(&mut self) -> io::Result<()> {
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write!(self.stdout, "{}", termion::cursor::Hide)?;
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self.stdout.flush()
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}
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/// Shows cursor
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fn show_cursor(&mut self) -> io::Result<()> {
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write!(self.stdout, "{}", termion::cursor::Show)?;
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self.stdout.flush()
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}
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/// Gets cursor position (0-based index)
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fn get_cursor(&mut self) -> io::Result<(u16, u16)> {
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termion::cursor::DetectCursorPos::cursor_pos(&mut self.stdout).map(|(x, y)| (x - 1, y - 1))
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}
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/// Sets cursor position (0-based index)
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fn set_cursor(&mut self, x: u16, y: u16) -> io::Result<()> {
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write!(self.stdout, "{}", termion::cursor::Goto(x + 1, y + 1))?;
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self.stdout.flush()
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}
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fn draw<'a, I>(&mut self, content: I) -> io::Result<()>
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where
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I: Iterator<Item = (u16, u16, &'a Cell)>,
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{
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use std::fmt::Write;
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let mut string = String::with_capacity(content.size_hint().0 * 3);
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let mut fg = Color::Reset;
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let mut bg = Color::Reset;
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let mut modifier = Modifier::empty();
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let mut last_pos: Option<(u16, u16)> = None;
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for (x, y, cell) in content {
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// Move the cursor if the previous location was not (x - 1, y)
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if !matches!(last_pos, Some(p) if x == p.0 + 1 && y == p.1) {
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write!(string, "{}", termion::cursor::Goto(x + 1, y + 1)).unwrap();
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}
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last_pos = Some((x, y));
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if cell.modifier != modifier {
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write!(
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string,
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"{}",
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ModifierDiff {
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from: modifier,
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to: cell.modifier
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}
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)
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.unwrap();
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modifier = cell.modifier;
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}
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if cell.fg != fg {
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write!(string, "{}", Fg(cell.fg)).unwrap();
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fg = cell.fg;
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}
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if cell.bg != bg {
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write!(string, "{}", Bg(cell.bg)).unwrap();
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bg = cell.bg;
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}
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string.push_str(&cell.symbol);
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}
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write!(
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self.stdout,
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"{}{}{}{}",
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string,
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Fg(Color::Reset),
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Bg(Color::Reset),
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termion::style::Reset,
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)
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}
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/// Return the size of the terminal
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fn size(&self) -> io::Result<Rect> {
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let terminal = termion::terminal_size()?;
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Ok(Rect::new(0, 0, terminal.0, terminal.1))
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}
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fn flush(&mut self) -> io::Result<()> {
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self.stdout.flush()
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}
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}
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struct Fg(Color);
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struct Bg(Color);
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struct ModifierDiff {
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from: Modifier,
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to: Modifier,
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}
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impl fmt::Display for Fg {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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use termion::color::Color as TermionColor;
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match self.0 {
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Color::Reset => termion::color::Reset.write_fg(f),
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Color::Black => termion::color::Black.write_fg(f),
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Color::Red => termion::color::Red.write_fg(f),
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Color::Green => termion::color::Green.write_fg(f),
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Color::Yellow => termion::color::Yellow.write_fg(f),
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Color::Blue => termion::color::Blue.write_fg(f),
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Color::Magenta => termion::color::Magenta.write_fg(f),
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Color::Cyan => termion::color::Cyan.write_fg(f),
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Color::Gray => termion::color::White.write_fg(f),
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Color::DarkGray => termion::color::LightBlack.write_fg(f),
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Color::LightRed => termion::color::LightRed.write_fg(f),
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Color::LightGreen => termion::color::LightGreen.write_fg(f),
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Color::LightBlue => termion::color::LightBlue.write_fg(f),
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Color::LightYellow => termion::color::LightYellow.write_fg(f),
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Color::LightMagenta => termion::color::LightMagenta.write_fg(f),
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Color::LightCyan => termion::color::LightCyan.write_fg(f),
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Color::White => termion::color::LightWhite.write_fg(f),
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Color::Indexed(i) => termion::color::AnsiValue(i).write_fg(f),
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Color::Rgb(r, g, b) => termion::color::Rgb(r, g, b).write_fg(f),
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}
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}
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}
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impl fmt::Display for Bg {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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use termion::color::Color as TermionColor;
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match self.0 {
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Color::Reset => termion::color::Reset.write_bg(f),
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Color::Black => termion::color::Black.write_bg(f),
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Color::Red => termion::color::Red.write_bg(f),
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Color::Green => termion::color::Green.write_bg(f),
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Color::Yellow => termion::color::Yellow.write_bg(f),
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Color::Blue => termion::color::Blue.write_bg(f),
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Color::Magenta => termion::color::Magenta.write_bg(f),
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Color::Cyan => termion::color::Cyan.write_bg(f),
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Color::Gray => termion::color::White.write_bg(f),
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Color::DarkGray => termion::color::LightBlack.write_bg(f),
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Color::LightRed => termion::color::LightRed.write_bg(f),
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Color::LightGreen => termion::color::LightGreen.write_bg(f),
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Color::LightBlue => termion::color::LightBlue.write_bg(f),
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Color::LightYellow => termion::color::LightYellow.write_bg(f),
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Color::LightMagenta => termion::color::LightMagenta.write_bg(f),
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Color::LightCyan => termion::color::LightCyan.write_bg(f),
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Color::White => termion::color::LightWhite.write_bg(f),
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Color::Indexed(i) => termion::color::AnsiValue(i).write_bg(f),
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Color::Rgb(r, g, b) => termion::color::Rgb(r, g, b).write_bg(f),
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}
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}
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}
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impl fmt::Display for ModifierDiff {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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let remove = self.from - self.to;
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if remove.contains(Modifier::REVERSED) {
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write!(f, "{}", termion::style::NoInvert)?;
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}
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if remove.contains(Modifier::BOLD) {
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// XXX: the termion NoBold flag actually enables double-underline on ECMA-48 compliant
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// terminals, and NoFaint additionally disables bold... so we use this trick to get
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// the right semantics.
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write!(f, "{}", termion::style::NoFaint)?;
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if self.to.contains(Modifier::DIM) {
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write!(f, "{}", termion::style::Faint)?;
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}
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}
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if remove.contains(Modifier::ITALIC) {
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write!(f, "{}", termion::style::NoItalic)?;
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}
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if remove.contains(Modifier::UNDERLINED) {
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write!(f, "{}", termion::style::NoUnderline)?;
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}
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if remove.contains(Modifier::DIM) {
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write!(f, "{}", termion::style::NoFaint)?;
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// XXX: the NoFaint flag additionally disables bold as well, so we need to re-enable it
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// here if we want it.
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if self.to.contains(Modifier::BOLD) {
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write!(f, "{}", termion::style::Bold)?;
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}
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}
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if remove.contains(Modifier::CROSSED_OUT) {
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write!(f, "{}", termion::style::NoCrossedOut)?;
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}
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if remove.contains(Modifier::SLOW_BLINK) || remove.contains(Modifier::RAPID_BLINK) {
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write!(f, "{}", termion::style::NoBlink)?;
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}
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let add = self.to - self.from;
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if add.contains(Modifier::REVERSED) {
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write!(f, "{}", termion::style::Invert)?;
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}
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if add.contains(Modifier::BOLD) {
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write!(f, "{}", termion::style::Bold)?;
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}
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if add.contains(Modifier::ITALIC) {
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write!(f, "{}", termion::style::Italic)?;
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}
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if add.contains(Modifier::UNDERLINED) {
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write!(f, "{}", termion::style::Underline)?;
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}
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if add.contains(Modifier::DIM) {
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write!(f, "{}", termion::style::Faint)?;
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}
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if add.contains(Modifier::CROSSED_OUT) {
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write!(f, "{}", termion::style::CrossedOut)?;
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}
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if add.contains(Modifier::SLOW_BLINK) || add.contains(Modifier::RAPID_BLINK) {
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write!(f, "{}", termion::style::Blink)?;
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}
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Ok(())
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}
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}
|
@ -23,8 +23,6 @@ pub enum Direction {
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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pub enum Constraint {
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// TODO: enforce range 0 - 100
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Percentage(u16),
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Ratio(u32, u32),
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Length(u16),
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Max(u16),
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@ -34,7 +32,6 @@ pub enum Constraint {
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impl Constraint {
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pub fn apply(&self, length: u16) -> u16 {
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||||
match *self {
|
||||
Constraint::Percentage(p) => length * p / 100,
|
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Constraint::Ratio(num, den) => {
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||||
let r = num * u32::from(length) / den;
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r as u16
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@ -253,9 +250,6 @@ fn split(area: Rect, layout: &Layout) -> Rc<[Rect]> {
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ccs.push(elements[i].height | EQ(REQUIRED) | f64::from(dest_area.height));
|
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ccs.push(match *size {
|
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Constraint::Length(v) => elements[i].width | EQ(MEDIUM) | f64::from(v),
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Constraint::Percentage(v) => {
|
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elements[i].width | EQ(MEDIUM) | (f64::from(v * dest_area.width) / 100.0)
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}
|
||||
Constraint::Ratio(n, d) => {
|
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elements[i].width
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| EQ(MEDIUM)
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@ -285,9 +279,6 @@ fn split(area: Rect, layout: &Layout) -> Rc<[Rect]> {
|
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ccs.push(elements[i].width | EQ(REQUIRED) | f64::from(dest_area.width));
|
||||
ccs.push(match *size {
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Constraint::Length(v) => elements[i].height | EQ(MEDIUM) | f64::from(v),
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Constraint::Percentage(v) => {
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elements[i].height | EQ(MEDIUM) | (f64::from(v * dest_area.height) / 100.0)
|
||||
}
|
||||
Constraint::Ratio(n, d) => {
|
||||
elements[i].height
|
||||
| EQ(MEDIUM)
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||||
@ -502,7 +493,7 @@ mod tests {
|
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.direction(Direction::Vertical)
|
||||
.constraints(
|
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[
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||||
Constraint::Percentage(10),
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||||
Constraint::Ratio(1, 10),
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||||
Constraint::Max(5),
|
||||
Constraint::Min(1),
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||||
]
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|
@ -48,6 +48,7 @@
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//! ```
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||||
use crate::ratatui::style::Style;
|
||||
use std::borrow::Cow;
|
||||
use tinyvec::TinyVec;
|
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use unicode_segmentation::UnicodeSegmentation;
|
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use unicode_width::UnicodeWidthStr;
|
||||
|
||||
@ -59,7 +60,7 @@ pub struct StyledGrapheme<'a> {
|
||||
}
|
||||
|
||||
/// A string where all graphemes have the same style.
|
||||
#[derive(Debug, Clone, PartialEq, Eq)]
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Default)]
|
||||
pub struct Span<'a> {
|
||||
pub content: Cow<'a, str>,
|
||||
pub style: Style,
|
||||
@ -195,7 +196,7 @@ impl<'a> From<&'a str> for Span<'a> {
|
||||
|
||||
/// A string composed of clusters of graphemes, each with their own style.
|
||||
#[derive(Debug, Clone, PartialEq, Default, Eq)]
|
||||
pub struct Spans<'a>(pub Vec<Span<'a>>);
|
||||
pub struct Spans<'a>(pub TinyVec<[Span<'a>; 1]>);
|
||||
|
||||
impl<'a> Spans<'a> {
|
||||
/// Returns the width of the underlying string.
|
||||
@ -218,25 +219,25 @@ impl<'a> Spans<'a> {
|
||||
|
||||
impl<'a> From<String> for Spans<'a> {
|
||||
fn from(s: String) -> Spans<'a> {
|
||||
Spans(vec![Span::from(s)])
|
||||
Spans(TinyVec::from([Span::from(s)]))
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> From<&'a str> for Spans<'a> {
|
||||
fn from(s: &'a str) -> Spans<'a> {
|
||||
Spans(vec![Span::from(s)])
|
||||
Spans(TinyVec::from([Span::from(s)]))
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> From<Vec<Span<'a>>> for Spans<'a> {
|
||||
fn from(spans: Vec<Span<'a>>) -> Spans<'a> {
|
||||
Spans(spans)
|
||||
Spans(TinyVec::Heap(spans))
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> From<Span<'a>> for Spans<'a> {
|
||||
fn from(span: Span<'a>) -> Spans<'a> {
|
||||
Spans(vec![span])
|
||||
Spans(TinyVec::from([span]))
|
||||
}
|
||||
}
|
||||
|
||||
@ -275,7 +276,7 @@ impl<'a> From<Spans<'a>> for String {
|
||||
/// ```
|
||||
#[derive(Debug, Clone, PartialEq, Default, Eq)]
|
||||
pub struct Text<'a> {
|
||||
pub lines: Vec<Spans<'a>>,
|
||||
pub lines: TinyVec<[Spans<'a>; 4]>,
|
||||
}
|
||||
|
||||
impl<'a> Text<'a> {
|
||||
@ -292,11 +293,12 @@ impl<'a> Text<'a> {
|
||||
where
|
||||
T: Into<Cow<'a, str>>,
|
||||
{
|
||||
let lines: Vec<_> = match content.into() {
|
||||
Cow::Borrowed("") => vec![Spans::from("")],
|
||||
Cow::Borrowed(s) => s.lines().map(Spans::from).collect(),
|
||||
Cow::Owned(s) if s.is_empty() => vec![Spans::from("")],
|
||||
Cow::Owned(s) => s.lines().map(|l| Spans::from(l.to_owned())).collect(),
|
||||
let mut lines = TinyVec::<[_; 4]>::new();
|
||||
match content.into() {
|
||||
Cow::Borrowed("") => lines.push(Spans::from("")),
|
||||
Cow::Borrowed(s) => lines.extend(s.lines().map(Spans::from)),
|
||||
Cow::Owned(s) if s.is_empty() => lines.push(Spans::from("")),
|
||||
Cow::Owned(s) => lines.extend(s.lines().map(|l| Spans::from(l.to_owned()))),
|
||||
};
|
||||
|
||||
Text { lines }
|
||||
@ -396,27 +398,31 @@ impl<'a> From<Cow<'a, str>> for Text<'a> {
|
||||
|
||||
impl<'a> From<Span<'a>> for Text<'a> {
|
||||
fn from(span: Span<'a>) -> Text<'a> {
|
||||
Text {
|
||||
lines: vec![Spans::from(span)],
|
||||
}
|
||||
let mut lines = TinyVec::new();
|
||||
lines.push(Spans::from(span));
|
||||
Text { lines }
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> From<Spans<'a>> for Text<'a> {
|
||||
fn from(spans: Spans<'a>) -> Text<'a> {
|
||||
Text { lines: vec![spans] }
|
||||
let mut lines = TinyVec::new();
|
||||
lines.push(spans);
|
||||
Text { lines }
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> From<Vec<Spans<'a>>> for Text<'a> {
|
||||
fn from(lines: Vec<Spans<'a>>) -> Text<'a> {
|
||||
Text { lines }
|
||||
Text {
|
||||
lines: TinyVec::Heap(lines),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> IntoIterator for Text<'a> {
|
||||
type Item = Spans<'a>;
|
||||
type IntoIter = std::vec::IntoIter<Self::Item>;
|
||||
type IntoIter = tinyvec::TinyVecIterator<[Self::Item; 4]>;
|
||||
|
||||
fn into_iter(self) -> Self::IntoIter {
|
||||
self.lines.into_iter()
|
||||
|
@ -1,219 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::Rect,
|
||||
style::Style,
|
||||
symbols,
|
||||
widgets::{Block, Widget},
|
||||
};
|
||||
use std::cmp::min;
|
||||
use unicode_width::UnicodeWidthStr;
|
||||
|
||||
/// Display multiple bars in a single widgets
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Block, Borders, BarChart};
|
||||
/// # use ratatui::style::{Style, Color, Modifier};
|
||||
/// BarChart::default()
|
||||
/// .block(Block::default().title("BarChart").borders(Borders::ALL))
|
||||
/// .bar_width(3)
|
||||
/// .bar_gap(1)
|
||||
/// .bar_style(Style::default().fg(Color::Yellow).bg(Color::Red))
|
||||
/// .value_style(Style::default().fg(Color::Red).add_modifier(Modifier::BOLD))
|
||||
/// .label_style(Style::default().fg(Color::White))
|
||||
/// .data(&[("B0", 0), ("B1", 2), ("B2", 4), ("B3", 3)])
|
||||
/// .max(4);
|
||||
/// ```
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct BarChart<'a> {
|
||||
/// Block to wrap the widget in
|
||||
block: Option<Block<'a>>,
|
||||
/// The width of each bar
|
||||
bar_width: u16,
|
||||
/// The gap between each bar
|
||||
bar_gap: u16,
|
||||
/// Set of symbols used to display the data
|
||||
bar_set: symbols::bar::Set,
|
||||
/// Style of the bars
|
||||
bar_style: Style,
|
||||
/// Style of the values printed at the bottom of each bar
|
||||
value_style: Style,
|
||||
/// Style of the labels printed under each bar
|
||||
label_style: Style,
|
||||
/// Style for the widget
|
||||
style: Style,
|
||||
/// Slice of (label, value) pair to plot on the chart
|
||||
data: &'a [(&'a str, u64)],
|
||||
/// Value necessary for a bar to reach the maximum height (if no value is specified,
|
||||
/// the maximum value in the data is taken as reference)
|
||||
max: Option<u64>,
|
||||
/// Values to display on the bar (computed when the data is passed to the widget)
|
||||
values: Vec<String>,
|
||||
}
|
||||
|
||||
impl<'a> Default for BarChart<'a> {
|
||||
fn default() -> BarChart<'a> {
|
||||
BarChart {
|
||||
block: None,
|
||||
max: None,
|
||||
data: &[],
|
||||
values: Vec::new(),
|
||||
bar_style: Style::default(),
|
||||
bar_width: 1,
|
||||
bar_gap: 1,
|
||||
bar_set: symbols::bar::NINE_LEVELS,
|
||||
value_style: Default::default(),
|
||||
label_style: Default::default(),
|
||||
style: Default::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> BarChart<'a> {
|
||||
pub fn data(mut self, data: &'a [(&'a str, u64)]) -> BarChart<'a> {
|
||||
self.data = data;
|
||||
self.values = Vec::with_capacity(self.data.len());
|
||||
for &(_, v) in self.data {
|
||||
self.values.push(format!("{}", v));
|
||||
}
|
||||
self
|
||||
}
|
||||
|
||||
pub fn block(mut self, block: Block<'a>) -> BarChart<'a> {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn max(mut self, max: u64) -> BarChart<'a> {
|
||||
self.max = Some(max);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn bar_style(mut self, style: Style) -> BarChart<'a> {
|
||||
self.bar_style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn bar_width(mut self, width: u16) -> BarChart<'a> {
|
||||
self.bar_width = width;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn bar_gap(mut self, gap: u16) -> BarChart<'a> {
|
||||
self.bar_gap = gap;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn bar_set(mut self, bar_set: symbols::bar::Set) -> BarChart<'a> {
|
||||
self.bar_set = bar_set;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn value_style(mut self, style: Style) -> BarChart<'a> {
|
||||
self.value_style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn label_style(mut self, style: Style) -> BarChart<'a> {
|
||||
self.label_style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> BarChart<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for BarChart<'a> {
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
buf.set_style(area, self.style);
|
||||
|
||||
let chart_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
if chart_area.height < 2 {
|
||||
return;
|
||||
}
|
||||
|
||||
let max = self
|
||||
.max
|
||||
.unwrap_or_else(|| self.data.iter().map(|t| t.1).max().unwrap_or_default());
|
||||
let max_index = min(
|
||||
(chart_area.width / (self.bar_width + self.bar_gap)) as usize,
|
||||
self.data.len(),
|
||||
);
|
||||
let mut data = self
|
||||
.data
|
||||
.iter()
|
||||
.take(max_index)
|
||||
.map(|&(l, v)| {
|
||||
(
|
||||
l,
|
||||
v * u64::from(chart_area.height - 1) * 8 / std::cmp::max(max, 1),
|
||||
)
|
||||
})
|
||||
.collect::<Vec<(&str, u64)>>();
|
||||
for j in (0..chart_area.height - 1).rev() {
|
||||
for (i, d) in data.iter_mut().enumerate() {
|
||||
let symbol = match d.1 {
|
||||
0 => self.bar_set.empty,
|
||||
1 => self.bar_set.one_eighth,
|
||||
2 => self.bar_set.one_quarter,
|
||||
3 => self.bar_set.three_eighths,
|
||||
4 => self.bar_set.half,
|
||||
5 => self.bar_set.five_eighths,
|
||||
6 => self.bar_set.three_quarters,
|
||||
7 => self.bar_set.seven_eighths,
|
||||
_ => self.bar_set.full,
|
||||
};
|
||||
|
||||
for x in 0..self.bar_width {
|
||||
buf.get_mut(
|
||||
chart_area.left() + i as u16 * (self.bar_width + self.bar_gap) + x,
|
||||
chart_area.top() + j,
|
||||
)
|
||||
.set_symbol(symbol)
|
||||
.set_style(self.bar_style);
|
||||
}
|
||||
|
||||
if d.1 > 8 {
|
||||
d.1 -= 8;
|
||||
} else {
|
||||
d.1 = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (i, &(label, value)) in self.data.iter().take(max_index).enumerate() {
|
||||
if value != 0 {
|
||||
let value_label = &self.values[i];
|
||||
let width = value_label.width() as u16;
|
||||
if width < self.bar_width {
|
||||
buf.set_string(
|
||||
chart_area.left()
|
||||
+ i as u16 * (self.bar_width + self.bar_gap)
|
||||
+ (self.bar_width - width) / 2,
|
||||
chart_area.bottom() - 2,
|
||||
value_label,
|
||||
self.value_style,
|
||||
);
|
||||
}
|
||||
}
|
||||
buf.set_stringn(
|
||||
chart_area.left() + i as u16 * (self.bar_width + self.bar_gap),
|
||||
chart_area.bottom() - 1,
|
||||
label,
|
||||
self.bar_width as usize,
|
||||
self.label_style,
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
@ -140,7 +140,7 @@ impl<'a> Block<'a> {
|
||||
}
|
||||
|
||||
impl<'a> Widget for Block<'a> {
|
||||
fn render(self, area: Rect, buf: &mut Buffer) {
|
||||
fn render(&self, area: Rect, buf: &mut Buffer) {
|
||||
if area.area() == 0 {
|
||||
return;
|
||||
}
|
||||
@ -202,7 +202,7 @@ impl<'a> Widget for Block<'a> {
|
||||
}
|
||||
|
||||
// Title
|
||||
if let Some(title) = self.title {
|
||||
if let Some(title) = self.title.as_ref() {
|
||||
let left_border_dx = if self.borders.intersects(Borders::LEFT) {
|
||||
1
|
||||
} else {
|
||||
|
@ -1,95 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
style::Color,
|
||||
widgets::canvas::{Painter, Shape},
|
||||
};
|
||||
|
||||
/// Shape to draw a line from (x1, y1) to (x2, y2) with the given color
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Line {
|
||||
pub x1: f64,
|
||||
pub y1: f64,
|
||||
pub x2: f64,
|
||||
pub y2: f64,
|
||||
pub color: Color,
|
||||
}
|
||||
|
||||
impl Shape for Line {
|
||||
fn draw(&self, painter: &mut Painter) {
|
||||
let (x1, y1) = match painter.get_point(self.x1, self.y1) {
|
||||
Some(c) => c,
|
||||
None => return,
|
||||
};
|
||||
let (x2, y2) = match painter.get_point(self.x2, self.y2) {
|
||||
Some(c) => c,
|
||||
None => return,
|
||||
};
|
||||
let (dx, x_range) = if x2 >= x1 {
|
||||
(x2 - x1, x1..=x2)
|
||||
} else {
|
||||
(x1 - x2, x2..=x1)
|
||||
};
|
||||
let (dy, y_range) = if y2 >= y1 {
|
||||
(y2 - y1, y1..=y2)
|
||||
} else {
|
||||
(y1 - y2, y2..=y1)
|
||||
};
|
||||
|
||||
if dx == 0 {
|
||||
for y in y_range {
|
||||
painter.paint(x1, y, self.color);
|
||||
}
|
||||
} else if dy == 0 {
|
||||
for x in x_range {
|
||||
painter.paint(x, y1, self.color);
|
||||
}
|
||||
} else if dy < dx {
|
||||
if x1 > x2 {
|
||||
draw_line_low(painter, x2, y2, x1, y1, self.color);
|
||||
} else {
|
||||
draw_line_low(painter, x1, y1, x2, y2, self.color);
|
||||
}
|
||||
} else if y1 > y2 {
|
||||
draw_line_high(painter, x2, y2, x1, y1, self.color);
|
||||
} else {
|
||||
draw_line_high(painter, x1, y1, x2, y2, self.color);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn draw_line_low(painter: &mut Painter, x1: usize, y1: usize, x2: usize, y2: usize, color: Color) {
|
||||
let dx = (x2 - x1) as isize;
|
||||
let dy = (y2 as isize - y1 as isize).abs();
|
||||
let mut d = 2 * dy - dx;
|
||||
let mut y = y1;
|
||||
for x in x1..=x2 {
|
||||
painter.paint(x, y, color);
|
||||
if d > 0 {
|
||||
y = if y1 > y2 {
|
||||
y.saturating_sub(1)
|
||||
} else {
|
||||
y.saturating_add(1)
|
||||
};
|
||||
d -= 2 * dx;
|
||||
}
|
||||
d += 2 * dy;
|
||||
}
|
||||
}
|
||||
|
||||
fn draw_line_high(painter: &mut Painter, x1: usize, y1: usize, x2: usize, y2: usize, color: Color) {
|
||||
let dx = (x2 as isize - x1 as isize).abs();
|
||||
let dy = (y2 - y1) as isize;
|
||||
let mut d = 2 * dx - dy;
|
||||
let mut x = x1;
|
||||
for y in y1..=y2 {
|
||||
painter.paint(x, y, color);
|
||||
if d > 0 {
|
||||
x = if x1 > x2 {
|
||||
x.saturating_sub(1)
|
||||
} else {
|
||||
x.saturating_add(1)
|
||||
};
|
||||
d -= 2 * dy;
|
||||
}
|
||||
d += 2 * dx;
|
||||
}
|
||||
}
|
@ -1,48 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
style::Color,
|
||||
widgets::canvas::{
|
||||
world::{WORLD_HIGH_RESOLUTION, WORLD_LOW_RESOLUTION},
|
||||
Painter, Shape,
|
||||
},
|
||||
};
|
||||
|
||||
#[derive(Debug, Clone, Copy)]
|
||||
pub enum MapResolution {
|
||||
Low,
|
||||
High,
|
||||
}
|
||||
|
||||
impl MapResolution {
|
||||
fn data(self) -> &'static [(f64, f64)] {
|
||||
match self {
|
||||
MapResolution::Low => &WORLD_LOW_RESOLUTION,
|
||||
MapResolution::High => &WORLD_HIGH_RESOLUTION,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Shape to draw a world map with the given resolution and color
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Map {
|
||||
pub resolution: MapResolution,
|
||||
pub color: Color,
|
||||
}
|
||||
|
||||
impl Default for Map {
|
||||
fn default() -> Map {
|
||||
Map {
|
||||
resolution: MapResolution::Low,
|
||||
color: Color::Reset,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Shape for Map {
|
||||
fn draw(&self, painter: &mut Painter) {
|
||||
for (x, y) in self.resolution.data() {
|
||||
if let Some((x, y)) = painter.get_point(*x, *y) {
|
||||
painter.paint(x, y, self.color);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
@ -1,510 +0,0 @@
|
||||
mod line;
|
||||
mod map;
|
||||
mod points;
|
||||
mod rectangle;
|
||||
mod world;
|
||||
|
||||
pub use self::line::Line;
|
||||
pub use self::map::{Map, MapResolution};
|
||||
pub use self::points::Points;
|
||||
pub use self::rectangle::Rectangle;
|
||||
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::Rect,
|
||||
style::{Color, Style},
|
||||
symbols,
|
||||
text::Spans,
|
||||
widgets::{Block, Widget},
|
||||
};
|
||||
use std::fmt::Debug;
|
||||
|
||||
/// Interface for all shapes that may be drawn on a Canvas widget.
|
||||
pub trait Shape {
|
||||
fn draw(&self, painter: &mut Painter);
|
||||
}
|
||||
|
||||
/// Label to draw some text on the canvas
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Label<'a> {
|
||||
x: f64,
|
||||
y: f64,
|
||||
spans: Spans<'a>,
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
struct Layer {
|
||||
string: String,
|
||||
colors: Vec<Color>,
|
||||
}
|
||||
|
||||
trait Grid: Debug {
|
||||
fn width(&self) -> u16;
|
||||
fn height(&self) -> u16;
|
||||
fn resolution(&self) -> (f64, f64);
|
||||
fn paint(&mut self, x: usize, y: usize, color: Color);
|
||||
fn save(&self) -> Layer;
|
||||
fn reset(&mut self);
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
struct BrailleGrid {
|
||||
width: u16,
|
||||
height: u16,
|
||||
cells: Vec<u16>,
|
||||
colors: Vec<Color>,
|
||||
}
|
||||
|
||||
impl BrailleGrid {
|
||||
fn new(width: u16, height: u16) -> BrailleGrid {
|
||||
let length = usize::from(width * height);
|
||||
BrailleGrid {
|
||||
width,
|
||||
height,
|
||||
cells: vec![symbols::braille::BLANK; length],
|
||||
colors: vec![Color::Reset; length],
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Grid for BrailleGrid {
|
||||
fn width(&self) -> u16 {
|
||||
self.width
|
||||
}
|
||||
|
||||
fn height(&self) -> u16 {
|
||||
self.height
|
||||
}
|
||||
|
||||
fn resolution(&self) -> (f64, f64) {
|
||||
(
|
||||
f64::from(self.width) * 2.0 - 1.0,
|
||||
f64::from(self.height) * 4.0 - 1.0,
|
||||
)
|
||||
}
|
||||
|
||||
fn save(&self) -> Layer {
|
||||
Layer {
|
||||
string: String::from_utf16(&self.cells).unwrap(),
|
||||
colors: self.colors.clone(),
|
||||
}
|
||||
}
|
||||
|
||||
fn reset(&mut self) {
|
||||
for c in &mut self.cells {
|
||||
*c = symbols::braille::BLANK;
|
||||
}
|
||||
for c in &mut self.colors {
|
||||
*c = Color::Reset;
|
||||
}
|
||||
}
|
||||
|
||||
fn paint(&mut self, x: usize, y: usize, color: Color) {
|
||||
let index = y / 4 * self.width as usize + x / 2;
|
||||
if let Some(c) = self.cells.get_mut(index) {
|
||||
*c |= symbols::braille::DOTS[y % 4][x % 2];
|
||||
}
|
||||
if let Some(c) = self.colors.get_mut(index) {
|
||||
*c = color;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
struct CharGrid {
|
||||
width: u16,
|
||||
height: u16,
|
||||
cells: Vec<char>,
|
||||
colors: Vec<Color>,
|
||||
cell_char: char,
|
||||
}
|
||||
|
||||
impl CharGrid {
|
||||
fn new(width: u16, height: u16, cell_char: char) -> CharGrid {
|
||||
let length = usize::from(width * height);
|
||||
CharGrid {
|
||||
width,
|
||||
height,
|
||||
cells: vec![' '; length],
|
||||
colors: vec![Color::Reset; length],
|
||||
cell_char,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Grid for CharGrid {
|
||||
fn width(&self) -> u16 {
|
||||
self.width
|
||||
}
|
||||
|
||||
fn height(&self) -> u16 {
|
||||
self.height
|
||||
}
|
||||
|
||||
fn resolution(&self) -> (f64, f64) {
|
||||
(f64::from(self.width) - 1.0, f64::from(self.height) - 1.0)
|
||||
}
|
||||
|
||||
fn save(&self) -> Layer {
|
||||
Layer {
|
||||
string: self.cells.iter().collect(),
|
||||
colors: self.colors.clone(),
|
||||
}
|
||||
}
|
||||
|
||||
fn reset(&mut self) {
|
||||
for c in &mut self.cells {
|
||||
*c = ' ';
|
||||
}
|
||||
for c in &mut self.colors {
|
||||
*c = Color::Reset;
|
||||
}
|
||||
}
|
||||
|
||||
fn paint(&mut self, x: usize, y: usize, color: Color) {
|
||||
let index = y * self.width as usize + x;
|
||||
if let Some(c) = self.cells.get_mut(index) {
|
||||
*c = self.cell_char;
|
||||
}
|
||||
if let Some(c) = self.colors.get_mut(index) {
|
||||
*c = color;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Painter<'a, 'b> {
|
||||
context: &'a mut Context<'b>,
|
||||
resolution: (f64, f64),
|
||||
}
|
||||
|
||||
impl<'a, 'b> Painter<'a, 'b> {
|
||||
/// Convert the (x, y) coordinates to location of a point on the grid
|
||||
///
|
||||
/// # Examples:
|
||||
/// ```
|
||||
/// use ratatui::{symbols, widgets::canvas::{Painter, Context}};
|
||||
///
|
||||
/// let mut ctx = Context::new(2, 2, [1.0, 2.0], [0.0, 2.0], symbols::Marker::Braille);
|
||||
/// let mut painter = Painter::from(&mut ctx);
|
||||
/// let point = painter.get_point(1.0, 0.0);
|
||||
/// assert_eq!(point, Some((0, 7)));
|
||||
/// let point = painter.get_point(1.5, 1.0);
|
||||
/// assert_eq!(point, Some((1, 3)));
|
||||
/// let point = painter.get_point(0.0, 0.0);
|
||||
/// assert_eq!(point, None);
|
||||
/// let point = painter.get_point(2.0, 2.0);
|
||||
/// assert_eq!(point, Some((3, 0)));
|
||||
/// let point = painter.get_point(1.0, 2.0);
|
||||
/// assert_eq!(point, Some((0, 0)));
|
||||
/// ```
|
||||
pub fn get_point(&self, x: f64, y: f64) -> Option<(usize, usize)> {
|
||||
let left = self.context.x_bounds[0];
|
||||
let right = self.context.x_bounds[1];
|
||||
let top = self.context.y_bounds[1];
|
||||
let bottom = self.context.y_bounds[0];
|
||||
if x < left || x > right || y < bottom || y > top {
|
||||
return None;
|
||||
}
|
||||
let width = (self.context.x_bounds[1] - self.context.x_bounds[0]).abs();
|
||||
let height = (self.context.y_bounds[1] - self.context.y_bounds[0]).abs();
|
||||
if width == 0.0 || height == 0.0 {
|
||||
return None;
|
||||
}
|
||||
let x = ((x - left) * self.resolution.0 / width) as usize;
|
||||
let y = ((top - y) * self.resolution.1 / height) as usize;
|
||||
Some((x, y))
|
||||
}
|
||||
|
||||
/// Paint a point of the grid
|
||||
///
|
||||
/// # Examples:
|
||||
/// ```
|
||||
/// use ratatui::{style::Color, symbols, widgets::canvas::{Painter, Context}};
|
||||
///
|
||||
/// let mut ctx = Context::new(1, 1, [0.0, 2.0], [0.0, 2.0], symbols::Marker::Braille);
|
||||
/// let mut painter = Painter::from(&mut ctx);
|
||||
/// let cell = painter.paint(1, 3, Color::Red);
|
||||
/// ```
|
||||
pub fn paint(&mut self, x: usize, y: usize, color: Color) {
|
||||
self.context.grid.paint(x, y, color);
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, 'b> From<&'a mut Context<'b>> for Painter<'a, 'b> {
|
||||
fn from(context: &'a mut Context<'b>) -> Painter<'a, 'b> {
|
||||
let resolution = context.grid.resolution();
|
||||
Painter {
|
||||
context,
|
||||
resolution,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Holds the state of the Canvas when painting to it.
|
||||
#[derive(Debug)]
|
||||
pub struct Context<'a> {
|
||||
x_bounds: [f64; 2],
|
||||
y_bounds: [f64; 2],
|
||||
grid: Box<dyn Grid>,
|
||||
dirty: bool,
|
||||
layers: Vec<Layer>,
|
||||
labels: Vec<Label<'a>>,
|
||||
}
|
||||
|
||||
impl<'a> Context<'a> {
|
||||
pub fn new(
|
||||
width: u16,
|
||||
height: u16,
|
||||
x_bounds: [f64; 2],
|
||||
y_bounds: [f64; 2],
|
||||
marker: symbols::Marker,
|
||||
) -> Context<'a> {
|
||||
let grid: Box<dyn Grid> = match marker {
|
||||
symbols::Marker::Dot => Box::new(CharGrid::new(width, height, '•')),
|
||||
symbols::Marker::Block => Box::new(CharGrid::new(width, height, '▄')),
|
||||
symbols::Marker::Braille => Box::new(BrailleGrid::new(width, height)),
|
||||
};
|
||||
Context {
|
||||
x_bounds,
|
||||
y_bounds,
|
||||
grid,
|
||||
dirty: false,
|
||||
layers: Vec::new(),
|
||||
labels: Vec::new(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Draw any object that may implement the Shape trait
|
||||
pub fn draw<S>(&mut self, shape: &S)
|
||||
where
|
||||
S: Shape,
|
||||
{
|
||||
self.dirty = true;
|
||||
let mut painter = Painter::from(self);
|
||||
shape.draw(&mut painter);
|
||||
}
|
||||
|
||||
/// Go one layer above in the canvas.
|
||||
pub fn layer(&mut self) {
|
||||
self.layers.push(self.grid.save());
|
||||
self.grid.reset();
|
||||
self.dirty = false;
|
||||
}
|
||||
|
||||
/// Print a string on the canvas at the given position
|
||||
pub fn print<T>(&mut self, x: f64, y: f64, spans: T)
|
||||
where
|
||||
T: Into<Spans<'a>>,
|
||||
{
|
||||
self.labels.push(Label {
|
||||
x,
|
||||
y,
|
||||
spans: spans.into(),
|
||||
});
|
||||
}
|
||||
|
||||
/// Push the last layer if necessary
|
||||
fn finish(&mut self) {
|
||||
if self.dirty {
|
||||
self.layer()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// The Canvas widget may be used to draw more detailed figures using braille patterns (each
|
||||
/// cell can have a braille character in 8 different positions).
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Block, Borders};
|
||||
/// # use ratatui::layout::Rect;
|
||||
/// # use ratatui::widgets::canvas::{Canvas, Shape, Line, Rectangle, Map, MapResolution};
|
||||
/// # use ratatui::style::Color;
|
||||
/// Canvas::default()
|
||||
/// .block(Block::default().title("Canvas").borders(Borders::ALL))
|
||||
/// .x_bounds([-180.0, 180.0])
|
||||
/// .y_bounds([-90.0, 90.0])
|
||||
/// .paint(|ctx| {
|
||||
/// ctx.draw(&Map {
|
||||
/// resolution: MapResolution::High,
|
||||
/// color: Color::White
|
||||
/// });
|
||||
/// ctx.layer();
|
||||
/// ctx.draw(&Line {
|
||||
/// x1: 0.0,
|
||||
/// y1: 10.0,
|
||||
/// x2: 10.0,
|
||||
/// y2: 10.0,
|
||||
/// color: Color::White,
|
||||
/// });
|
||||
/// ctx.draw(&Rectangle {
|
||||
/// x: 10.0,
|
||||
/// y: 20.0,
|
||||
/// width: 10.0,
|
||||
/// height: 10.0,
|
||||
/// color: Color::Red
|
||||
/// });
|
||||
/// });
|
||||
/// ```
|
||||
pub struct Canvas<'a, F>
|
||||
where
|
||||
F: Fn(&mut Context),
|
||||
{
|
||||
block: Option<Block<'a>>,
|
||||
x_bounds: [f64; 2],
|
||||
y_bounds: [f64; 2],
|
||||
painter: Option<F>,
|
||||
background_color: Color,
|
||||
marker: symbols::Marker,
|
||||
}
|
||||
|
||||
impl<'a, F> Default for Canvas<'a, F>
|
||||
where
|
||||
F: Fn(&mut Context),
|
||||
{
|
||||
fn default() -> Canvas<'a, F> {
|
||||
Canvas {
|
||||
block: None,
|
||||
x_bounds: [0.0, 0.0],
|
||||
y_bounds: [0.0, 0.0],
|
||||
painter: None,
|
||||
background_color: Color::Reset,
|
||||
marker: symbols::Marker::Braille,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, F> Canvas<'a, F>
|
||||
where
|
||||
F: Fn(&mut Context),
|
||||
{
|
||||
pub fn block(mut self, block: Block<'a>) -> Canvas<'a, F> {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
/// Define the viewport of the canvas.
|
||||
/// If you were to "zoom" to a certain part of the world you may want to choose different
|
||||
/// bounds.
|
||||
pub fn x_bounds(mut self, bounds: [f64; 2]) -> Canvas<'a, F> {
|
||||
self.x_bounds = bounds;
|
||||
self
|
||||
}
|
||||
|
||||
/// Define the viewport of the canvas.
|
||||
///
|
||||
/// If you were to "zoom" to a certain part of the world you may want to choose different
|
||||
/// bounds.
|
||||
pub fn y_bounds(mut self, bounds: [f64; 2]) -> Canvas<'a, F> {
|
||||
self.y_bounds = bounds;
|
||||
self
|
||||
}
|
||||
|
||||
/// Store the closure that will be used to draw to the Canvas
|
||||
pub fn paint(mut self, f: F) -> Canvas<'a, F> {
|
||||
self.painter = Some(f);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn background_color(mut self, color: Color) -> Canvas<'a, F> {
|
||||
self.background_color = color;
|
||||
self
|
||||
}
|
||||
|
||||
/// Change the type of points used to draw the shapes. By default the braille patterns are used
|
||||
/// as they provide a more fine grained result but you might want to use the simple dot or
|
||||
/// block instead if the targeted terminal does not support those symbols.
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::canvas::Canvas;
|
||||
/// # use ratatui::symbols;
|
||||
/// Canvas::default().marker(symbols::Marker::Braille).paint(|ctx| {});
|
||||
///
|
||||
/// Canvas::default().marker(symbols::Marker::Dot).paint(|ctx| {});
|
||||
///
|
||||
/// Canvas::default().marker(symbols::Marker::Block).paint(|ctx| {});
|
||||
/// ```
|
||||
pub fn marker(mut self, marker: symbols::Marker) -> Canvas<'a, F> {
|
||||
self.marker = marker;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, F> Widget for Canvas<'a, F>
|
||||
where
|
||||
F: Fn(&mut Context),
|
||||
{
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
let canvas_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
buf.set_style(canvas_area, Style::default().bg(self.background_color));
|
||||
|
||||
let width = canvas_area.width as usize;
|
||||
|
||||
let painter = match self.painter {
|
||||
Some(ref p) => p,
|
||||
None => return,
|
||||
};
|
||||
|
||||
// Create a blank context that match the size of the canvas
|
||||
let mut ctx = Context::new(
|
||||
canvas_area.width,
|
||||
canvas_area.height,
|
||||
self.x_bounds,
|
||||
self.y_bounds,
|
||||
self.marker,
|
||||
);
|
||||
// Paint to this context
|
||||
painter(&mut ctx);
|
||||
ctx.finish();
|
||||
|
||||
// Retrieve painted points for each layer
|
||||
for layer in ctx.layers {
|
||||
for (i, (ch, color)) in layer
|
||||
.string
|
||||
.chars()
|
||||
.zip(layer.colors.into_iter())
|
||||
.enumerate()
|
||||
{
|
||||
if ch != ' ' && ch != '\u{2800}' {
|
||||
let (x, y) = (i % width, i / width);
|
||||
buf.get_mut(x as u16 + canvas_area.left(), y as u16 + canvas_area.top())
|
||||
.set_char(ch)
|
||||
.set_fg(color);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Finally draw the labels
|
||||
let left = self.x_bounds[0];
|
||||
let right = self.x_bounds[1];
|
||||
let top = self.y_bounds[1];
|
||||
let bottom = self.y_bounds[0];
|
||||
let width = (self.x_bounds[1] - self.x_bounds[0]).abs();
|
||||
let height = (self.y_bounds[1] - self.y_bounds[0]).abs();
|
||||
let resolution = {
|
||||
let width = f64::from(canvas_area.width - 1);
|
||||
let height = f64::from(canvas_area.height - 1);
|
||||
(width, height)
|
||||
};
|
||||
for label in ctx
|
||||
.labels
|
||||
.iter()
|
||||
.filter(|l| l.x >= left && l.x <= right && l.y <= top && l.y >= bottom)
|
||||
{
|
||||
let x = ((label.x - left) * resolution.0 / width) as u16 + canvas_area.left();
|
||||
let y = ((top - label.y) * resolution.1 / height) as u16 + canvas_area.top();
|
||||
buf.set_spans(x, y, &label.spans, canvas_area.right() - x);
|
||||
}
|
||||
}
|
||||
}
|
@ -1,30 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
style::Color,
|
||||
widgets::canvas::{Painter, Shape},
|
||||
};
|
||||
|
||||
/// A shape to draw a group of points with the given color
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Points<'a> {
|
||||
pub coords: &'a [(f64, f64)],
|
||||
pub color: Color,
|
||||
}
|
||||
|
||||
impl<'a> Shape for Points<'a> {
|
||||
fn draw(&self, painter: &mut Painter) {
|
||||
for (x, y) in self.coords {
|
||||
if let Some((x, y)) = painter.get_point(*x, *y) {
|
||||
painter.paint(x, y, self.color);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Default for Points<'a> {
|
||||
fn default() -> Points<'a> {
|
||||
Points {
|
||||
coords: &[],
|
||||
color: Color::Reset,
|
||||
}
|
||||
}
|
||||
}
|
@ -1,52 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
style::Color,
|
||||
widgets::canvas::{Line, Painter, Shape},
|
||||
};
|
||||
|
||||
/// Shape to draw a rectangle from a `Rect` with the given color
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Rectangle {
|
||||
pub x: f64,
|
||||
pub y: f64,
|
||||
pub width: f64,
|
||||
pub height: f64,
|
||||
pub color: Color,
|
||||
}
|
||||
|
||||
impl Shape for Rectangle {
|
||||
fn draw(&self, painter: &mut Painter) {
|
||||
let lines: [Line; 4] = [
|
||||
Line {
|
||||
x1: self.x,
|
||||
y1: self.y,
|
||||
x2: self.x,
|
||||
y2: self.y + self.height,
|
||||
color: self.color,
|
||||
},
|
||||
Line {
|
||||
x1: self.x,
|
||||
y1: self.y + self.height,
|
||||
x2: self.x + self.width,
|
||||
y2: self.y + self.height,
|
||||
color: self.color,
|
||||
},
|
||||
Line {
|
||||
x1: self.x + self.width,
|
||||
y1: self.y,
|
||||
x2: self.x + self.width,
|
||||
y2: self.y + self.height,
|
||||
color: self.color,
|
||||
},
|
||||
Line {
|
||||
x1: self.x,
|
||||
y1: self.y,
|
||||
x2: self.x + self.width,
|
||||
y2: self.y,
|
||||
color: self.color,
|
||||
},
|
||||
];
|
||||
for line in &lines {
|
||||
line.draw(painter);
|
||||
}
|
||||
}
|
||||
}
|
File diff suppressed because it is too large
Load Diff
@ -1,660 +0,0 @@
|
||||
use std::{borrow::Cow, cmp::max};
|
||||
|
||||
use unicode_width::UnicodeWidthStr;
|
||||
|
||||
use crate::ratatui::layout::Alignment;
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::{Constraint, Rect},
|
||||
style::{Color, Style},
|
||||
symbols,
|
||||
text::{Span, Spans},
|
||||
widgets::{
|
||||
canvas::{Canvas, Line, Points},
|
||||
Block, Borders, Widget,
|
||||
},
|
||||
};
|
||||
|
||||
/// An X or Y axis for the chart widget
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Axis<'a> {
|
||||
/// Title displayed next to axis end
|
||||
title: Option<Spans<'a>>,
|
||||
/// Bounds for the axis (all data points outside these limits will not be represented)
|
||||
bounds: [f64; 2],
|
||||
/// A list of labels to put to the left or below the axis
|
||||
labels: Option<Vec<Span<'a>>>,
|
||||
/// The style used to draw the axis itself
|
||||
style: Style,
|
||||
/// The alignment of the labels of the Axis
|
||||
labels_alignment: Alignment,
|
||||
}
|
||||
|
||||
impl<'a> Default for Axis<'a> {
|
||||
fn default() -> Axis<'a> {
|
||||
Axis {
|
||||
title: None,
|
||||
bounds: [0.0, 0.0],
|
||||
labels: None,
|
||||
style: Default::default(),
|
||||
labels_alignment: Alignment::Left,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Axis<'a> {
|
||||
pub fn title<T>(mut self, title: T) -> Axis<'a>
|
||||
where
|
||||
T: Into<Spans<'a>>,
|
||||
{
|
||||
self.title = Some(title.into());
|
||||
self
|
||||
}
|
||||
|
||||
#[deprecated(
|
||||
since = "0.10.0",
|
||||
note = "You should use styling capabilities of `text::Spans` given as argument of the `title` method to apply styling to the title."
|
||||
)]
|
||||
pub fn title_style(mut self, style: Style) -> Axis<'a> {
|
||||
if let Some(t) = self.title {
|
||||
let title = String::from(t);
|
||||
self.title = Some(Spans::from(Span::styled(title, style)));
|
||||
}
|
||||
self
|
||||
}
|
||||
|
||||
pub fn bounds(mut self, bounds: [f64; 2]) -> Axis<'a> {
|
||||
self.bounds = bounds;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn labels(mut self, labels: Vec<Span<'a>>) -> Axis<'a> {
|
||||
self.labels = Some(labels);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Axis<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
/// Defines the alignment of the labels of the axis.
|
||||
/// The alignment behaves differently based on the axis:
|
||||
/// - Y-Axis: The labels are aligned within the area on the left of the axis
|
||||
/// - X-Axis: The first X-axis label is aligned relative to the Y-axis
|
||||
pub fn labels_alignment(mut self, alignment: Alignment) -> Axis<'a> {
|
||||
self.labels_alignment = alignment;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
/// Used to determine which style of graphing to use
|
||||
#[derive(Debug, Clone, Copy)]
|
||||
pub enum GraphType {
|
||||
/// Draw each point
|
||||
Scatter,
|
||||
/// Draw each point and lines between each point using the same marker
|
||||
Line,
|
||||
}
|
||||
|
||||
/// A group of data points
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Dataset<'a> {
|
||||
/// Name of the dataset (used in the legend if shown)
|
||||
name: Cow<'a, str>,
|
||||
/// A reference to the actual data
|
||||
data: &'a [(f64, f64)],
|
||||
/// Symbol used for each points of this dataset
|
||||
marker: symbols::Marker,
|
||||
/// Determines graph type used for drawing points
|
||||
graph_type: GraphType,
|
||||
/// Style used to plot this dataset
|
||||
style: Style,
|
||||
}
|
||||
|
||||
impl<'a> Default for Dataset<'a> {
|
||||
fn default() -> Dataset<'a> {
|
||||
Dataset {
|
||||
name: Cow::from(""),
|
||||
data: &[],
|
||||
marker: symbols::Marker::Dot,
|
||||
graph_type: GraphType::Scatter,
|
||||
style: Style::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Dataset<'a> {
|
||||
pub fn name<S>(mut self, name: S) -> Dataset<'a>
|
||||
where
|
||||
S: Into<Cow<'a, str>>,
|
||||
{
|
||||
self.name = name.into();
|
||||
self
|
||||
}
|
||||
|
||||
pub fn data(mut self, data: &'a [(f64, f64)]) -> Dataset<'a> {
|
||||
self.data = data;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn marker(mut self, marker: symbols::Marker) -> Dataset<'a> {
|
||||
self.marker = marker;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn graph_type(mut self, graph_type: GraphType) -> Dataset<'a> {
|
||||
self.graph_type = graph_type;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Dataset<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
/// A container that holds all the infos about where to display each elements of the chart (axis,
|
||||
/// labels, legend, ...).
|
||||
#[derive(Debug, Clone, PartialEq, Default)]
|
||||
struct ChartLayout {
|
||||
/// Location of the title of the x axis
|
||||
title_x: Option<(u16, u16)>,
|
||||
/// Location of the title of the y axis
|
||||
title_y: Option<(u16, u16)>,
|
||||
/// Location of the first label of the x axis
|
||||
label_x: Option<u16>,
|
||||
/// Location of the first label of the y axis
|
||||
label_y: Option<u16>,
|
||||
/// Y coordinate of the horizontal axis
|
||||
axis_x: Option<u16>,
|
||||
/// X coordinate of the vertical axis
|
||||
axis_y: Option<u16>,
|
||||
/// Area of the legend
|
||||
legend_area: Option<Rect>,
|
||||
/// Area of the graph
|
||||
graph_area: Rect,
|
||||
}
|
||||
|
||||
/// A widget to plot one or more dataset in a cartesian coordinate system
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::symbols;
|
||||
/// # use ratatui::widgets::{Block, Borders, Chart, Axis, Dataset, GraphType};
|
||||
/// # use ratatui::style::{Style, Color};
|
||||
/// # use ratatui::text::Span;
|
||||
/// let datasets = vec![
|
||||
/// Dataset::default()
|
||||
/// .name("data1")
|
||||
/// .marker(symbols::Marker::Dot)
|
||||
/// .graph_type(GraphType::Scatter)
|
||||
/// .style(Style::default().fg(Color::Cyan))
|
||||
/// .data(&[(0.0, 5.0), (1.0, 6.0), (1.5, 6.434)]),
|
||||
/// Dataset::default()
|
||||
/// .name("data2")
|
||||
/// .marker(symbols::Marker::Braille)
|
||||
/// .graph_type(GraphType::Line)
|
||||
/// .style(Style::default().fg(Color::Magenta))
|
||||
/// .data(&[(4.0, 5.0), (5.0, 8.0), (7.66, 13.5)]),
|
||||
/// ];
|
||||
/// Chart::new(datasets)
|
||||
/// .block(Block::default().title("Chart"))
|
||||
/// .x_axis(Axis::default()
|
||||
/// .title(Span::styled("X Axis", Style::default().fg(Color::Red)))
|
||||
/// .style(Style::default().fg(Color::White))
|
||||
/// .bounds([0.0, 10.0])
|
||||
/// .labels(["0.0", "5.0", "10.0"].iter().cloned().map(Span::from).collect()))
|
||||
/// .y_axis(Axis::default()
|
||||
/// .title(Span::styled("Y Axis", Style::default().fg(Color::Red)))
|
||||
/// .style(Style::default().fg(Color::White))
|
||||
/// .bounds([0.0, 10.0])
|
||||
/// .labels(["0.0", "5.0", "10.0"].iter().cloned().map(Span::from).collect()));
|
||||
/// ```
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Chart<'a> {
|
||||
/// A block to display around the widget eventually
|
||||
block: Option<Block<'a>>,
|
||||
/// The horizontal axis
|
||||
x_axis: Axis<'a>,
|
||||
/// The vertical axis
|
||||
y_axis: Axis<'a>,
|
||||
/// A reference to the datasets
|
||||
datasets: Vec<Dataset<'a>>,
|
||||
/// The widget base style
|
||||
style: Style,
|
||||
/// Constraints used to determine whether the legend should be shown or not
|
||||
hidden_legend_constraints: (Constraint, Constraint),
|
||||
}
|
||||
|
||||
impl<'a> Chart<'a> {
|
||||
pub fn new(datasets: Vec<Dataset<'a>>) -> Chart<'a> {
|
||||
Chart {
|
||||
block: None,
|
||||
x_axis: Axis::default(),
|
||||
y_axis: Axis::default(),
|
||||
style: Default::default(),
|
||||
datasets,
|
||||
hidden_legend_constraints: (Constraint::Ratio(1, 4), Constraint::Ratio(1, 4)),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn block(mut self, block: Block<'a>) -> Chart<'a> {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Chart<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn x_axis(mut self, axis: Axis<'a>) -> Chart<'a> {
|
||||
self.x_axis = axis;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn y_axis(mut self, axis: Axis<'a>) -> Chart<'a> {
|
||||
self.y_axis = axis;
|
||||
self
|
||||
}
|
||||
|
||||
/// Set the constraints used to determine whether the legend should be shown or not.
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::Chart;
|
||||
/// # use ratatui::layout::Constraint;
|
||||
/// let constraints = (
|
||||
/// Constraint::Ratio(1, 3),
|
||||
/// Constraint::Ratio(1, 4)
|
||||
/// );
|
||||
/// // Hide the legend when either its width is greater than 33% of the total widget width
|
||||
/// // or if its height is greater than 25% of the total widget height.
|
||||
/// let _chart: Chart = Chart::new(vec![])
|
||||
/// .hidden_legend_constraints(constraints);
|
||||
/// ```
|
||||
pub fn hidden_legend_constraints(mut self, constraints: (Constraint, Constraint)) -> Chart<'a> {
|
||||
self.hidden_legend_constraints = constraints;
|
||||
self
|
||||
}
|
||||
|
||||
/// Compute the internal layout of the chart given the area. If the area is too small some
|
||||
/// elements may be automatically hidden
|
||||
fn layout(&self, area: Rect) -> ChartLayout {
|
||||
let mut layout = ChartLayout::default();
|
||||
if area.height == 0 || area.width == 0 {
|
||||
return layout;
|
||||
}
|
||||
let mut x = area.left();
|
||||
let mut y = area.bottom() - 1;
|
||||
|
||||
if self.x_axis.labels.is_some() && y > area.top() {
|
||||
layout.label_x = Some(y);
|
||||
y -= 1;
|
||||
}
|
||||
|
||||
layout.label_y = self.y_axis.labels.as_ref().and(Some(x));
|
||||
x += self.max_width_of_labels_left_of_y_axis(area, self.y_axis.labels.is_some());
|
||||
|
||||
if self.x_axis.labels.is_some() && y > area.top() {
|
||||
layout.axis_x = Some(y);
|
||||
y -= 1;
|
||||
}
|
||||
|
||||
if self.y_axis.labels.is_some() && x + 1 < area.right() {
|
||||
layout.axis_y = Some(x);
|
||||
x += 1;
|
||||
}
|
||||
|
||||
if x < area.right() && y > 1 {
|
||||
layout.graph_area = Rect::new(x, area.top(), area.right() - x, y - area.top() + 1);
|
||||
}
|
||||
|
||||
if let Some(ref title) = self.x_axis.title {
|
||||
let w = title.width() as u16;
|
||||
if w < layout.graph_area.width && layout.graph_area.height > 2 {
|
||||
layout.title_x = Some((x + layout.graph_area.width - w, y));
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(ref title) = self.y_axis.title {
|
||||
let w = title.width() as u16;
|
||||
if w + 1 < layout.graph_area.width && layout.graph_area.height > 2 {
|
||||
layout.title_y = Some((x, area.top()));
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(inner_width) = self.datasets.iter().map(|d| d.name.width() as u16).max() {
|
||||
let legend_width = inner_width + 2;
|
||||
let legend_height = self.datasets.len() as u16 + 2;
|
||||
let max_legend_width = self
|
||||
.hidden_legend_constraints
|
||||
.0
|
||||
.apply(layout.graph_area.width);
|
||||
let max_legend_height = self
|
||||
.hidden_legend_constraints
|
||||
.1
|
||||
.apply(layout.graph_area.height);
|
||||
if inner_width > 0
|
||||
&& legend_width < max_legend_width
|
||||
&& legend_height < max_legend_height
|
||||
{
|
||||
layout.legend_area = Some(Rect::new(
|
||||
layout.graph_area.right() - legend_width,
|
||||
layout.graph_area.top(),
|
||||
legend_width,
|
||||
legend_height,
|
||||
));
|
||||
}
|
||||
}
|
||||
layout
|
||||
}
|
||||
|
||||
fn max_width_of_labels_left_of_y_axis(&self, area: Rect, has_y_axis: bool) -> u16 {
|
||||
let mut max_width = self
|
||||
.y_axis
|
||||
.labels
|
||||
.as_ref()
|
||||
.map(|l| l.iter().map(Span::width).max().unwrap_or_default() as u16)
|
||||
.unwrap_or_default();
|
||||
|
||||
if let Some(first_x_label) = self.x_axis.labels.as_ref().and_then(|labels| labels.get(0)) {
|
||||
let first_label_width = first_x_label.content.width() as u16;
|
||||
let width_left_of_y_axis = match self.x_axis.labels_alignment {
|
||||
Alignment::Left => {
|
||||
// The last character of the label should be below the Y-Axis when it exists, not on its left
|
||||
let y_axis_offset = if has_y_axis { 1 } else { 0 };
|
||||
first_label_width.saturating_sub(y_axis_offset)
|
||||
}
|
||||
Alignment::Center => first_label_width / 2,
|
||||
Alignment::Right => 0,
|
||||
};
|
||||
max_width = max(max_width, width_left_of_y_axis);
|
||||
}
|
||||
// labels of y axis and first label of x axis can take at most 1/3rd of the total width
|
||||
max_width.min(area.width / 3)
|
||||
}
|
||||
|
||||
fn render_x_labels(
|
||||
&mut self,
|
||||
buf: &mut Buffer,
|
||||
layout: &ChartLayout,
|
||||
chart_area: Rect,
|
||||
graph_area: Rect,
|
||||
) {
|
||||
let y = match layout.label_x {
|
||||
Some(y) => y,
|
||||
None => return,
|
||||
};
|
||||
let labels = self.x_axis.labels.as_ref().unwrap();
|
||||
let labels_len = labels.len() as u16;
|
||||
if labels_len < 2 {
|
||||
return;
|
||||
}
|
||||
|
||||
let width_between_ticks = graph_area.width / labels_len;
|
||||
|
||||
let label_area = self.first_x_label_area(
|
||||
y,
|
||||
labels.first().unwrap().width() as u16,
|
||||
width_between_ticks,
|
||||
chart_area,
|
||||
graph_area,
|
||||
);
|
||||
|
||||
let label_alignment = match self.x_axis.labels_alignment {
|
||||
Alignment::Left => Alignment::Right,
|
||||
Alignment::Center => Alignment::Center,
|
||||
Alignment::Right => Alignment::Left,
|
||||
};
|
||||
|
||||
Self::render_label(buf, labels.first().unwrap(), label_area, label_alignment);
|
||||
|
||||
for (i, label) in labels[1..labels.len() - 1].iter().enumerate() {
|
||||
// We add 1 to x (and width-1 below) to leave at least one space before each intermediate labels
|
||||
let x = graph_area.left() + (i + 1) as u16 * width_between_ticks + 1;
|
||||
let label_area = Rect::new(x, y, width_between_ticks.saturating_sub(1), 1);
|
||||
|
||||
Self::render_label(buf, label, label_area, Alignment::Center);
|
||||
}
|
||||
|
||||
let x = graph_area.right() - width_between_ticks;
|
||||
let label_area = Rect::new(x, y, width_between_ticks, 1);
|
||||
// The last label should be aligned Right to be at the edge of the graph area
|
||||
Self::render_label(buf, labels.last().unwrap(), label_area, Alignment::Right);
|
||||
}
|
||||
|
||||
fn first_x_label_area(
|
||||
&self,
|
||||
y: u16,
|
||||
label_width: u16,
|
||||
max_width_after_y_axis: u16,
|
||||
chart_area: Rect,
|
||||
graph_area: Rect,
|
||||
) -> Rect {
|
||||
let (min_x, max_x) = match self.x_axis.labels_alignment {
|
||||
Alignment::Left => (chart_area.left(), graph_area.left()),
|
||||
Alignment::Center => (
|
||||
chart_area.left(),
|
||||
graph_area.left() + max_width_after_y_axis.min(label_width),
|
||||
),
|
||||
Alignment::Right => (
|
||||
graph_area.left().saturating_sub(1),
|
||||
graph_area.left() + max_width_after_y_axis,
|
||||
),
|
||||
};
|
||||
|
||||
Rect::new(min_x, y, max_x - min_x, 1)
|
||||
}
|
||||
|
||||
fn render_label(buf: &mut Buffer, label: &Span, label_area: Rect, alignment: Alignment) {
|
||||
let label_width = label.width() as u16;
|
||||
let bounded_label_width = label_area.width.min(label_width);
|
||||
|
||||
let x = match alignment {
|
||||
Alignment::Left => label_area.left(),
|
||||
Alignment::Center => label_area.left() + label_area.width / 2 - bounded_label_width / 2,
|
||||
Alignment::Right => label_area.right() - bounded_label_width,
|
||||
};
|
||||
|
||||
buf.set_span(x, label_area.top(), label, bounded_label_width);
|
||||
}
|
||||
|
||||
fn render_y_labels(
|
||||
&mut self,
|
||||
buf: &mut Buffer,
|
||||
layout: &ChartLayout,
|
||||
chart_area: Rect,
|
||||
graph_area: Rect,
|
||||
) {
|
||||
let x = match layout.label_y {
|
||||
Some(x) => x,
|
||||
None => return,
|
||||
};
|
||||
let labels = self.y_axis.labels.as_ref().unwrap();
|
||||
let labels_len = labels.len() as u16;
|
||||
for (i, label) in labels.iter().enumerate() {
|
||||
let dy = i as u16 * (graph_area.height - 1) / (labels_len - 1);
|
||||
if dy < graph_area.bottom() {
|
||||
let label_area = Rect::new(
|
||||
x,
|
||||
graph_area.bottom().saturating_sub(1) - dy,
|
||||
(graph_area.left() - chart_area.left()).saturating_sub(1),
|
||||
1,
|
||||
);
|
||||
Self::render_label(buf, label, label_area, self.y_axis.labels_alignment);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for Chart<'a> {
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
if area.area() == 0 {
|
||||
return;
|
||||
}
|
||||
buf.set_style(area, self.style);
|
||||
// Sample the style of the entire widget. This sample will be used to reset the style of
|
||||
// the cells that are part of the components put on top of the grah area (i.e legend and
|
||||
// axis names).
|
||||
let original_style = buf.get(area.left(), area.top()).style();
|
||||
|
||||
let chart_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
let layout = self.layout(chart_area);
|
||||
let graph_area = layout.graph_area;
|
||||
if graph_area.width < 1 || graph_area.height < 1 {
|
||||
return;
|
||||
}
|
||||
|
||||
self.render_x_labels(buf, &layout, chart_area, graph_area);
|
||||
self.render_y_labels(buf, &layout, chart_area, graph_area);
|
||||
|
||||
if let Some(y) = layout.axis_x {
|
||||
for x in graph_area.left()..graph_area.right() {
|
||||
buf.get_mut(x, y)
|
||||
.set_symbol(symbols::line::HORIZONTAL)
|
||||
.set_style(self.x_axis.style);
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(x) = layout.axis_y {
|
||||
for y in graph_area.top()..graph_area.bottom() {
|
||||
buf.get_mut(x, y)
|
||||
.set_symbol(symbols::line::VERTICAL)
|
||||
.set_style(self.y_axis.style);
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(y) = layout.axis_x {
|
||||
if let Some(x) = layout.axis_y {
|
||||
buf.get_mut(x, y)
|
||||
.set_symbol(symbols::line::BOTTOM_LEFT)
|
||||
.set_style(self.x_axis.style);
|
||||
}
|
||||
}
|
||||
|
||||
for dataset in &self.datasets {
|
||||
Canvas::default()
|
||||
.background_color(self.style.bg.unwrap_or(Color::Reset))
|
||||
.x_bounds(self.x_axis.bounds)
|
||||
.y_bounds(self.y_axis.bounds)
|
||||
.marker(dataset.marker)
|
||||
.paint(|ctx| {
|
||||
ctx.draw(&Points {
|
||||
coords: dataset.data,
|
||||
color: dataset.style.fg.unwrap_or(Color::Reset),
|
||||
});
|
||||
if let GraphType::Line = dataset.graph_type {
|
||||
for data in dataset.data.windows(2) {
|
||||
ctx.draw(&Line {
|
||||
x1: data[0].0,
|
||||
y1: data[0].1,
|
||||
x2: data[1].0,
|
||||
y2: data[1].1,
|
||||
color: dataset.style.fg.unwrap_or(Color::Reset),
|
||||
})
|
||||
}
|
||||
}
|
||||
})
|
||||
.render(graph_area, buf);
|
||||
}
|
||||
|
||||
if let Some(legend_area) = layout.legend_area {
|
||||
buf.set_style(legend_area, original_style);
|
||||
Block::default()
|
||||
.borders(Borders::ALL)
|
||||
.render(legend_area, buf);
|
||||
for (i, dataset) in self.datasets.iter().enumerate() {
|
||||
buf.set_string(
|
||||
legend_area.x + 1,
|
||||
legend_area.y + 1 + i as u16,
|
||||
&dataset.name,
|
||||
dataset.style,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
if let Some((x, y)) = layout.title_x {
|
||||
let title = self.x_axis.title.unwrap();
|
||||
let width = graph_area.right().saturating_sub(x);
|
||||
buf.set_style(
|
||||
Rect {
|
||||
x,
|
||||
y,
|
||||
width,
|
||||
height: 1,
|
||||
},
|
||||
original_style,
|
||||
);
|
||||
buf.set_spans(x, y, &title, width);
|
||||
}
|
||||
|
||||
if let Some((x, y)) = layout.title_y {
|
||||
let title = self.y_axis.title.unwrap();
|
||||
let width = graph_area.right().saturating_sub(x);
|
||||
buf.set_style(
|
||||
Rect {
|
||||
x,
|
||||
y,
|
||||
width,
|
||||
height: 1,
|
||||
},
|
||||
original_style,
|
||||
);
|
||||
buf.set_spans(x, y, &title, width);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
struct LegendTestCase {
|
||||
chart_area: Rect,
|
||||
hidden_legend_constraints: (Constraint, Constraint),
|
||||
legend_area: Option<Rect>,
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn it_should_hide_the_legend() {
|
||||
let data = [(0.0, 5.0), (1.0, 6.0), (3.0, 7.0)];
|
||||
let cases = [
|
||||
LegendTestCase {
|
||||
chart_area: Rect::new(0, 0, 100, 100),
|
||||
hidden_legend_constraints: (Constraint::Ratio(1, 4), Constraint::Ratio(1, 4)),
|
||||
legend_area: Some(Rect::new(88, 0, 12, 12)),
|
||||
},
|
||||
LegendTestCase {
|
||||
chart_area: Rect::new(0, 0, 100, 100),
|
||||
hidden_legend_constraints: (Constraint::Ratio(1, 10), Constraint::Ratio(1, 4)),
|
||||
legend_area: None,
|
||||
},
|
||||
];
|
||||
for case in &cases {
|
||||
let datasets = (0..10)
|
||||
.map(|i| {
|
||||
let name = format!("Dataset #{}", i);
|
||||
Dataset::default().name(name).data(&data)
|
||||
})
|
||||
.collect::<Vec<_>>();
|
||||
let chart = Chart::new(datasets)
|
||||
.x_axis(Axis::default().title("X axis"))
|
||||
.y_axis(Axis::default().title("Y axis"))
|
||||
.hidden_legend_constraints(case.hidden_legend_constraints);
|
||||
let layout = chart.layout(case.chart_area);
|
||||
assert_eq!(layout.legend_area, case.legend_area);
|
||||
}
|
||||
}
|
||||
}
|
@ -1,37 +0,0 @@
|
||||
use crate::ratatui::{buffer::Buffer, layout::Rect, widgets::Widget};
|
||||
|
||||
/// A widget to clear/reset a certain area to allow overdrawing (e.g. for popups).
|
||||
///
|
||||
/// This widget **cannot be used to clear the terminal on the first render** as `ratatui` assumes the
|
||||
/// render area is empty. Use [`crate::Terminal::clear`] instead.
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Clear, Block, Borders};
|
||||
/// # use ratatui::layout::Rect;
|
||||
/// # use ratatui::Frame;
|
||||
/// # use ratatui::backend::Backend;
|
||||
/// fn draw_on_clear<B: Backend>(f: &mut Frame<B>, area: Rect) {
|
||||
/// let block = Block::default().title("Block").borders(Borders::ALL);
|
||||
/// f.render_widget(Clear, area); // <- this will clear/reset the area first
|
||||
/// f.render_widget(block, area); // now render the block widget
|
||||
/// }
|
||||
/// ```
|
||||
///
|
||||
/// # Popup Example
|
||||
///
|
||||
/// For a more complete example how to utilize `Clear` to realize popups see
|
||||
/// the example `examples/popup.rs`
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Clear;
|
||||
|
||||
impl Widget for Clear {
|
||||
fn render(self, area: Rect, buf: &mut Buffer) {
|
||||
for x in area.left()..area.right() {
|
||||
for y in area.top()..area.bottom() {
|
||||
buf.get_mut(x, y).reset();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
@ -1,313 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::Rect,
|
||||
style::{Color, Style},
|
||||
symbols,
|
||||
text::{Span, Spans},
|
||||
widgets::{Block, Widget},
|
||||
};
|
||||
|
||||
/// A widget to display a task progress.
|
||||
///
|
||||
/// # Examples:
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Widget, Gauge, Block, Borders};
|
||||
/// # use ratatui::style::{Style, Color, Modifier};
|
||||
/// Gauge::default()
|
||||
/// .block(Block::default().borders(Borders::ALL).title("Progress"))
|
||||
/// .gauge_style(Style::default().fg(Color::White).bg(Color::Black).add_modifier(Modifier::ITALIC))
|
||||
/// .percent(20);
|
||||
/// ```
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Gauge<'a> {
|
||||
block: Option<Block<'a>>,
|
||||
ratio: f64,
|
||||
label: Option<Span<'a>>,
|
||||
use_unicode: bool,
|
||||
style: Style,
|
||||
gauge_style: Style,
|
||||
}
|
||||
|
||||
impl<'a> Default for Gauge<'a> {
|
||||
fn default() -> Gauge<'a> {
|
||||
Gauge {
|
||||
block: None,
|
||||
ratio: 0.0,
|
||||
label: None,
|
||||
use_unicode: false,
|
||||
style: Style::default(),
|
||||
gauge_style: Style::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Gauge<'a> {
|
||||
pub fn block(mut self, block: Block<'a>) -> Gauge<'a> {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn percent(mut self, percent: u16) -> Gauge<'a> {
|
||||
assert!(
|
||||
percent <= 100,
|
||||
"Percentage should be between 0 and 100 inclusively."
|
||||
);
|
||||
self.ratio = f64::from(percent) / 100.0;
|
||||
self
|
||||
}
|
||||
|
||||
/// Sets ratio ([0.0, 1.0]) directly.
|
||||
pub fn ratio(mut self, ratio: f64) -> Gauge<'a> {
|
||||
assert!(
|
||||
(0.0..=1.0).contains(&ratio),
|
||||
"Ratio should be between 0 and 1 inclusively."
|
||||
);
|
||||
self.ratio = ratio;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn label<T>(mut self, label: T) -> Gauge<'a>
|
||||
where
|
||||
T: Into<Span<'a>>,
|
||||
{
|
||||
self.label = Some(label.into());
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Gauge<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn gauge_style(mut self, style: Style) -> Gauge<'a> {
|
||||
self.gauge_style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn use_unicode(mut self, unicode: bool) -> Gauge<'a> {
|
||||
self.use_unicode = unicode;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for Gauge<'a> {
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
buf.set_style(area, self.style);
|
||||
let gauge_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
buf.set_style(gauge_area, self.gauge_style);
|
||||
if gauge_area.height < 1 {
|
||||
return;
|
||||
}
|
||||
|
||||
// compute label value and its position
|
||||
// label is put at the center of the gauge_area
|
||||
let label = {
|
||||
let pct = f64::round(self.ratio * 100.0);
|
||||
self.label
|
||||
.unwrap_or_else(|| Span::from(format!("{}%", pct)))
|
||||
};
|
||||
let clamped_label_width = gauge_area.width.min(label.width() as u16);
|
||||
let label_col = gauge_area.left() + (gauge_area.width - clamped_label_width) / 2;
|
||||
let label_row = gauge_area.top() + gauge_area.height / 2;
|
||||
|
||||
// the gauge will be filled proportionally to the ratio
|
||||
let filled_width = f64::from(gauge_area.width) * self.ratio;
|
||||
let end = if self.use_unicode {
|
||||
gauge_area.left() + filled_width.floor() as u16
|
||||
} else {
|
||||
gauge_area.left() + filled_width.round() as u16
|
||||
};
|
||||
for y in gauge_area.top()..gauge_area.bottom() {
|
||||
// render the filled area (left to end)
|
||||
for x in gauge_area.left()..end {
|
||||
// spaces are needed to apply the background styling
|
||||
buf.get_mut(x, y)
|
||||
.set_symbol(" ")
|
||||
.set_fg(self.gauge_style.bg.unwrap_or(Color::Reset))
|
||||
.set_bg(self.gauge_style.fg.unwrap_or(Color::Reset));
|
||||
}
|
||||
if self.use_unicode && self.ratio < 1.0 {
|
||||
buf.get_mut(end, y)
|
||||
.set_symbol(get_unicode_block(filled_width % 1.0));
|
||||
}
|
||||
}
|
||||
// set the span
|
||||
buf.set_span(label_col, label_row, &label, clamped_label_width);
|
||||
}
|
||||
}
|
||||
|
||||
fn get_unicode_block<'a>(frac: f64) -> &'a str {
|
||||
match (frac * 8.0).round() as u16 {
|
||||
1 => symbols::block::ONE_EIGHTH,
|
||||
2 => symbols::block::ONE_QUARTER,
|
||||
3 => symbols::block::THREE_EIGHTHS,
|
||||
4 => symbols::block::HALF,
|
||||
5 => symbols::block::FIVE_EIGHTHS,
|
||||
6 => symbols::block::THREE_QUARTERS,
|
||||
7 => symbols::block::SEVEN_EIGHTHS,
|
||||
8 => symbols::block::FULL,
|
||||
_ => " ",
|
||||
}
|
||||
}
|
||||
|
||||
/// A compact widget to display a task progress over a single line.
|
||||
///
|
||||
/// # Examples:
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Widget, LineGauge, Block, Borders};
|
||||
/// # use ratatui::style::{Style, Color, Modifier};
|
||||
/// # use ratatui::symbols;
|
||||
/// LineGauge::default()
|
||||
/// .block(Block::default().borders(Borders::ALL).title("Progress"))
|
||||
/// .gauge_style(Style::default().fg(Color::White).bg(Color::Black).add_modifier(Modifier::BOLD))
|
||||
/// .line_set(symbols::line::THICK)
|
||||
/// .ratio(0.4);
|
||||
/// ```
|
||||
pub struct LineGauge<'a> {
|
||||
block: Option<Block<'a>>,
|
||||
ratio: f64,
|
||||
label: Option<Spans<'a>>,
|
||||
line_set: symbols::line::Set,
|
||||
style: Style,
|
||||
gauge_style: Style,
|
||||
}
|
||||
|
||||
impl<'a> Default for LineGauge<'a> {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
block: None,
|
||||
ratio: 0.0,
|
||||
label: None,
|
||||
style: Style::default(),
|
||||
line_set: symbols::line::NORMAL,
|
||||
gauge_style: Style::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> LineGauge<'a> {
|
||||
pub fn block(mut self, block: Block<'a>) -> Self {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn ratio(mut self, ratio: f64) -> Self {
|
||||
assert!(
|
||||
(0.0..=1.0).contains(&ratio),
|
||||
"Ratio should be between 0 and 1 inclusively."
|
||||
);
|
||||
self.ratio = ratio;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn line_set(mut self, set: symbols::line::Set) -> Self {
|
||||
self.line_set = set;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn label<T>(mut self, label: T) -> Self
|
||||
where
|
||||
T: Into<Spans<'a>>,
|
||||
{
|
||||
self.label = Some(label.into());
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Self {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn gauge_style(mut self, style: Style) -> Self {
|
||||
self.gauge_style = style;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for LineGauge<'a> {
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
buf.set_style(area, self.style);
|
||||
let gauge_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
if gauge_area.height < 1 {
|
||||
return;
|
||||
}
|
||||
|
||||
let ratio = self.ratio;
|
||||
let label = self
|
||||
.label
|
||||
.unwrap_or_else(move || Spans::from(format!("{:.0}%", ratio * 100.0)));
|
||||
let (col, row) = buf.set_spans(
|
||||
gauge_area.left(),
|
||||
gauge_area.top(),
|
||||
&label,
|
||||
gauge_area.width,
|
||||
);
|
||||
let start = col + 1;
|
||||
if start >= gauge_area.right() {
|
||||
return;
|
||||
}
|
||||
|
||||
let end = start
|
||||
+ (f64::from(gauge_area.right().saturating_sub(start)) * self.ratio).floor() as u16;
|
||||
for col in start..end {
|
||||
buf.get_mut(col, row)
|
||||
.set_symbol(self.line_set.horizontal)
|
||||
.set_style(Style {
|
||||
fg: self.gauge_style.fg,
|
||||
bg: None,
|
||||
add_modifier: self.gauge_style.add_modifier,
|
||||
sub_modifier: self.gauge_style.sub_modifier,
|
||||
});
|
||||
}
|
||||
for col in end..gauge_area.right() {
|
||||
buf.get_mut(col, row)
|
||||
.set_symbol(self.line_set.horizontal)
|
||||
.set_style(Style {
|
||||
fg: self.gauge_style.bg,
|
||||
bg: None,
|
||||
add_modifier: self.gauge_style.add_modifier,
|
||||
sub_modifier: self.gauge_style.sub_modifier,
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn gauge_invalid_percentage() {
|
||||
Gauge::default().percent(110);
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn gauge_invalid_ratio_upper_bound() {
|
||||
Gauge::default().ratio(1.1);
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn gauge_invalid_ratio_lower_bound() {
|
||||
Gauge::default().ratio(-0.5);
|
||||
}
|
||||
}
|
@ -1,268 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::{Corner, Rect},
|
||||
style::Style,
|
||||
text::Text,
|
||||
widgets::{Block, StatefulWidget, Widget},
|
||||
};
|
||||
use unicode_width::UnicodeWidthStr;
|
||||
|
||||
#[derive(Debug, Clone, Default)]
|
||||
pub struct ListState {
|
||||
offset: usize,
|
||||
selected: Option<usize>,
|
||||
}
|
||||
|
||||
impl ListState {
|
||||
pub fn selected(&self) -> Option<usize> {
|
||||
self.selected
|
||||
}
|
||||
|
||||
pub fn select(&mut self, index: Option<usize>) {
|
||||
self.selected = index;
|
||||
if index.is_none() {
|
||||
self.offset = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq)]
|
||||
pub struct ListItem<'a> {
|
||||
content: Text<'a>,
|
||||
style: Style,
|
||||
}
|
||||
|
||||
impl<'a> ListItem<'a> {
|
||||
pub fn new<T>(content: T) -> ListItem<'a>
|
||||
where
|
||||
T: Into<Text<'a>>,
|
||||
{
|
||||
ListItem {
|
||||
content: content.into(),
|
||||
style: Style::default(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> ListItem<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn height(&self) -> usize {
|
||||
self.content.height()
|
||||
}
|
||||
|
||||
pub fn width(&self) -> usize {
|
||||
self.content.width()
|
||||
}
|
||||
}
|
||||
|
||||
/// A widget to display several items among which one can be selected (optional)
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Block, Borders, List, ListItem};
|
||||
/// # use ratatui::style::{Style, Color, Modifier};
|
||||
/// let items = [ListItem::new("Item 1"), ListItem::new("Item 2"), ListItem::new("Item 3")];
|
||||
/// List::new(items)
|
||||
/// .block(Block::default().title("List").borders(Borders::ALL))
|
||||
/// .style(Style::default().fg(Color::White))
|
||||
/// .highlight_style(Style::default().add_modifier(Modifier::ITALIC))
|
||||
/// .highlight_symbol(">>");
|
||||
/// ```
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct List<'a> {
|
||||
block: Option<Block<'a>>,
|
||||
items: Vec<ListItem<'a>>,
|
||||
/// Style used as a base style for the widget
|
||||
style: Style,
|
||||
start_corner: Corner,
|
||||
/// Style used to render selected item
|
||||
highlight_style: Style,
|
||||
/// Symbol in front of the selected item (Shift all items to the right)
|
||||
highlight_symbol: Option<&'a str>,
|
||||
/// Whether to repeat the highlight symbol for each line of the selected item
|
||||
repeat_highlight_symbol: bool,
|
||||
}
|
||||
|
||||
impl<'a> List<'a> {
|
||||
pub fn new<T>(items: T) -> List<'a>
|
||||
where
|
||||
T: Into<Vec<ListItem<'a>>>,
|
||||
{
|
||||
List {
|
||||
block: None,
|
||||
style: Style::default(),
|
||||
items: items.into(),
|
||||
start_corner: Corner::TopLeft,
|
||||
highlight_style: Style::default(),
|
||||
highlight_symbol: None,
|
||||
repeat_highlight_symbol: false,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn block(mut self, block: Block<'a>) -> List<'a> {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> List<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn highlight_symbol(mut self, highlight_symbol: &'a str) -> List<'a> {
|
||||
self.highlight_symbol = Some(highlight_symbol);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn highlight_style(mut self, style: Style) -> List<'a> {
|
||||
self.highlight_style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn repeat_highlight_symbol(mut self, repeat: bool) -> List<'a> {
|
||||
self.repeat_highlight_symbol = repeat;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn start_corner(mut self, corner: Corner) -> List<'a> {
|
||||
self.start_corner = corner;
|
||||
self
|
||||
}
|
||||
|
||||
fn get_items_bounds(
|
||||
&self,
|
||||
selected: Option<usize>,
|
||||
offset: usize,
|
||||
max_height: usize,
|
||||
) -> (usize, usize) {
|
||||
let offset = offset.min(self.items.len().saturating_sub(1));
|
||||
let mut start = offset;
|
||||
let mut end = offset;
|
||||
let mut height = 0;
|
||||
for item in self.items.iter().skip(offset) {
|
||||
if height + item.height() > max_height {
|
||||
break;
|
||||
}
|
||||
height += item.height();
|
||||
end += 1;
|
||||
}
|
||||
|
||||
let selected = selected.unwrap_or(0).min(self.items.len() - 1);
|
||||
while selected >= end {
|
||||
height = height.saturating_add(self.items[end].height());
|
||||
end += 1;
|
||||
while height > max_height {
|
||||
height = height.saturating_sub(self.items[start].height());
|
||||
start += 1;
|
||||
}
|
||||
}
|
||||
while selected < start {
|
||||
start -= 1;
|
||||
height = height.saturating_add(self.items[start].height());
|
||||
while height > max_height {
|
||||
end -= 1;
|
||||
height = height.saturating_sub(self.items[end].height());
|
||||
}
|
||||
}
|
||||
(start, end)
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> StatefulWidget for List<'a> {
|
||||
type State = ListState;
|
||||
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
|
||||
buf.set_style(area, self.style);
|
||||
let list_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
if list_area.width < 1 || list_area.height < 1 {
|
||||
return;
|
||||
}
|
||||
|
||||
if self.items.is_empty() {
|
||||
return;
|
||||
}
|
||||
let list_height = list_area.height as usize;
|
||||
|
||||
let (start, end) = self.get_items_bounds(state.selected, state.offset, list_height);
|
||||
state.offset = start;
|
||||
|
||||
let highlight_symbol = self.highlight_symbol.unwrap_or("");
|
||||
let blank_symbol = " ".repeat(highlight_symbol.width());
|
||||
|
||||
let mut current_height = 0;
|
||||
let has_selection = state.selected.is_some();
|
||||
for (i, item) in self
|
||||
.items
|
||||
.iter_mut()
|
||||
.enumerate()
|
||||
.skip(state.offset)
|
||||
.take(end - start)
|
||||
{
|
||||
let (x, y) = match self.start_corner {
|
||||
Corner::BottomLeft => {
|
||||
current_height += item.height() as u16;
|
||||
(list_area.left(), list_area.bottom() - current_height)
|
||||
}
|
||||
_ => {
|
||||
let pos = (list_area.left(), list_area.top() + current_height);
|
||||
current_height += item.height() as u16;
|
||||
pos
|
||||
}
|
||||
};
|
||||
let area = Rect {
|
||||
x,
|
||||
y,
|
||||
width: list_area.width,
|
||||
height: item.height() as u16,
|
||||
};
|
||||
let item_style = self.style.patch(item.style);
|
||||
buf.set_style(area, item_style);
|
||||
|
||||
let is_selected = state.selected.map(|s| s == i).unwrap_or(false);
|
||||
for (j, line) in item.content.lines.iter().enumerate() {
|
||||
// if the item is selected, we need to display the highlight symbol:
|
||||
// - either for the first line of the item only,
|
||||
// - or for each line of the item if the appropriate option is set
|
||||
let symbol = if is_selected && (j == 0 || self.repeat_highlight_symbol) {
|
||||
highlight_symbol
|
||||
} else {
|
||||
&blank_symbol
|
||||
};
|
||||
let (elem_x, max_element_width) = if has_selection {
|
||||
let (elem_x, _) = buf.set_stringn(
|
||||
x,
|
||||
y + j as u16,
|
||||
symbol,
|
||||
list_area.width as usize,
|
||||
item_style,
|
||||
);
|
||||
(elem_x, (list_area.width - (elem_x - x)))
|
||||
} else {
|
||||
(x, list_area.width)
|
||||
};
|
||||
buf.set_spans(elem_x, y + j as u16, line, max_element_width);
|
||||
}
|
||||
if is_selected {
|
||||
buf.set_style(area, self.highlight_style);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for List<'a> {
|
||||
fn render(self, area: Rect, buf: &mut Buffer) {
|
||||
let mut state = ListState::default();
|
||||
StatefulWidget::render(self, area, buf, &mut state);
|
||||
}
|
||||
}
|
@ -5,39 +5,16 @@
|
||||
//!
|
||||
//! The available widgets are:
|
||||
//! - [`Block`]
|
||||
//! - [`Tabs`]
|
||||
//! - [`List`]
|
||||
//! - [`Table`]
|
||||
//! - [`Paragraph`]
|
||||
//! - [`Chart`]
|
||||
//! - [`BarChart`]
|
||||
//! - [`Gauge`]
|
||||
//! - [`Sparkline`]
|
||||
//! - [`Clear`]
|
||||
|
||||
mod barchart;
|
||||
mod block;
|
||||
pub mod canvas;
|
||||
mod chart;
|
||||
mod clear;
|
||||
mod gauge;
|
||||
mod list;
|
||||
mod paragraph;
|
||||
mod reflow;
|
||||
mod sparkline;
|
||||
mod table;
|
||||
mod tabs;
|
||||
|
||||
pub use self::barchart::BarChart;
|
||||
pub use self::block::{Block, BorderType};
|
||||
pub use self::chart::{Axis, Chart, Dataset, GraphType};
|
||||
pub use self::clear::Clear;
|
||||
pub use self::gauge::{Gauge, LineGauge};
|
||||
pub use self::list::{List, ListItem, ListState};
|
||||
pub use self::paragraph::{Paragraph, Wrap};
|
||||
pub use self::sparkline::Sparkline;
|
||||
pub use self::table::{Cell, Row, Table, TableState};
|
||||
pub use self::tabs::Tabs;
|
||||
|
||||
use crate::ratatui::{buffer::Buffer, layout::Rect};
|
||||
use bitflags::bitflags;
|
||||
@ -64,7 +41,7 @@ bitflags! {
|
||||
pub trait Widget {
|
||||
/// Draws the current state of the widget in the given buffer. That is the only method required
|
||||
/// to implement a custom widget.
|
||||
fn render(self, area: Rect, buf: &mut Buffer);
|
||||
fn render(&self, area: Rect, buf: &mut Buffer);
|
||||
}
|
||||
|
||||
/// A `StatefulWidget` is a widget that can take advantage of some local state to remember things
|
||||
@ -180,5 +157,5 @@ pub trait Widget {
|
||||
/// ```
|
||||
pub trait StatefulWidget {
|
||||
type State;
|
||||
fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State);
|
||||
fn render(&self, area: Rect, buf: &mut Buffer, state: &mut Self::State);
|
||||
}
|
||||
|
@ -133,9 +133,9 @@ impl<'a> Paragraph<'a> {
|
||||
}
|
||||
|
||||
impl<'a> Widget for Paragraph<'a> {
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
fn render(&self, area: Rect, buf: &mut Buffer) {
|
||||
buf.set_style(area, self.style);
|
||||
let text_area = match self.block.take() {
|
||||
let text_area = match self.block.as_ref() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
|
@ -1,155 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::Rect,
|
||||
style::Style,
|
||||
symbols,
|
||||
widgets::{Block, Widget},
|
||||
};
|
||||
use std::cmp::min;
|
||||
|
||||
/// Widget to render a sparkline over one or more lines.
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Block, Borders, Sparkline};
|
||||
/// # use ratatui::style::{Style, Color};
|
||||
/// Sparkline::default()
|
||||
/// .block(Block::default().title("Sparkline").borders(Borders::ALL))
|
||||
/// .data(&[0, 2, 3, 4, 1, 4, 10])
|
||||
/// .max(5)
|
||||
/// .style(Style::default().fg(Color::Red).bg(Color::White));
|
||||
/// ```
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Sparkline<'a> {
|
||||
/// A block to wrap the widget in
|
||||
block: Option<Block<'a>>,
|
||||
/// Widget style
|
||||
style: Style,
|
||||
/// A slice of the data to display
|
||||
data: &'a [u64],
|
||||
/// The maximum value to take to compute the maximum bar height (if nothing is specified, the
|
||||
/// widget uses the max of the dataset)
|
||||
max: Option<u64>,
|
||||
/// A set of bar symbols used to represent the give data
|
||||
bar_set: symbols::bar::Set,
|
||||
}
|
||||
|
||||
impl<'a> Default for Sparkline<'a> {
|
||||
fn default() -> Sparkline<'a> {
|
||||
Sparkline {
|
||||
block: None,
|
||||
style: Default::default(),
|
||||
data: &[],
|
||||
max: None,
|
||||
bar_set: symbols::bar::NINE_LEVELS,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Sparkline<'a> {
|
||||
pub fn block(mut self, block: Block<'a>) -> Sparkline<'a> {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Sparkline<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn data(mut self, data: &'a [u64]) -> Sparkline<'a> {
|
||||
self.data = data;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn max(mut self, max: u64) -> Sparkline<'a> {
|
||||
self.max = Some(max);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn bar_set(mut self, bar_set: symbols::bar::Set) -> Sparkline<'a> {
|
||||
self.bar_set = bar_set;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for Sparkline<'a> {
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
let spark_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
if spark_area.height < 1 {
|
||||
return;
|
||||
}
|
||||
|
||||
let max = match self.max {
|
||||
Some(v) => v,
|
||||
None => *self.data.iter().max().unwrap_or(&1u64),
|
||||
};
|
||||
let max_index = min(spark_area.width as usize, self.data.len());
|
||||
let mut data = self
|
||||
.data
|
||||
.iter()
|
||||
.take(max_index)
|
||||
.map(|e| {
|
||||
if max != 0 {
|
||||
e * u64::from(spark_area.height) * 8 / max
|
||||
} else {
|
||||
0
|
||||
}
|
||||
})
|
||||
.collect::<Vec<u64>>();
|
||||
for j in (0..spark_area.height).rev() {
|
||||
for (i, d) in data.iter_mut().enumerate() {
|
||||
let symbol = match *d {
|
||||
0 => self.bar_set.empty,
|
||||
1 => self.bar_set.one_eighth,
|
||||
2 => self.bar_set.one_quarter,
|
||||
3 => self.bar_set.three_eighths,
|
||||
4 => self.bar_set.half,
|
||||
5 => self.bar_set.five_eighths,
|
||||
6 => self.bar_set.three_quarters,
|
||||
7 => self.bar_set.seven_eighths,
|
||||
_ => self.bar_set.full,
|
||||
};
|
||||
buf.get_mut(spark_area.left() + i as u16, spark_area.top() + j)
|
||||
.set_symbol(symbol)
|
||||
.set_style(self.style);
|
||||
|
||||
if *d > 8 {
|
||||
*d -= 8;
|
||||
} else {
|
||||
*d = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn it_does_not_panic_if_max_is_zero() {
|
||||
let widget = Sparkline::default().data(&[0, 0, 0]);
|
||||
let area = Rect::new(0, 0, 3, 1);
|
||||
let mut buffer = Buffer::empty(area);
|
||||
widget.render(area, &mut buffer);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn it_does_not_panic_if_max_is_set_to_zero() {
|
||||
let widget = Sparkline::default().data(&[0, 1, 2]).max(0);
|
||||
let area = Rect::new(0, 0, 3, 1);
|
||||
let mut buffer = Buffer::empty(area);
|
||||
widget.render(area, &mut buffer);
|
||||
}
|
||||
}
|
@ -1,504 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::{Constraint, Direction, Layout, Rect},
|
||||
style::Style,
|
||||
text::Text,
|
||||
widgets::{Block, StatefulWidget, Widget},
|
||||
};
|
||||
use unicode_width::UnicodeWidthStr;
|
||||
|
||||
/// A [`Cell`] contains the [`Text`] to be displayed in a [`Row`] of a [`Table`].
|
||||
///
|
||||
/// It can be created from anything that can be converted to a [`Text`].
|
||||
/// ```rust
|
||||
/// # use ratatui::widgets::Cell;
|
||||
/// # use ratatui::style::{Style, Modifier};
|
||||
/// # use ratatui::text::{Span, Spans, Text};
|
||||
/// # use std::borrow::Cow;
|
||||
/// Cell::from("simple string");
|
||||
///
|
||||
/// Cell::from(Span::from("span"));
|
||||
///
|
||||
/// Cell::from(Spans::from(vec![
|
||||
/// Span::raw("a vec of "),
|
||||
/// Span::styled("spans", Style::default().add_modifier(Modifier::BOLD))
|
||||
/// ]));
|
||||
///
|
||||
/// Cell::from(Text::from("a text"));
|
||||
///
|
||||
/// Cell::from(Text::from(Cow::Borrowed("hello")));
|
||||
/// ```
|
||||
///
|
||||
/// You can apply a [`Style`] on the entire [`Cell`] using [`Cell::style`] or rely on the styling
|
||||
/// capabilities of [`Text`].
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Default)]
|
||||
pub struct Cell<'a> {
|
||||
content: Text<'a>,
|
||||
style: Style,
|
||||
}
|
||||
|
||||
impl<'a> Cell<'a> {
|
||||
/// Set the `Style` of this cell.
|
||||
pub fn style(mut self, style: Style) -> Self {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, T> From<T> for Cell<'a>
|
||||
where
|
||||
T: Into<Text<'a>>,
|
||||
{
|
||||
fn from(content: T) -> Cell<'a> {
|
||||
Cell {
|
||||
content: content.into(),
|
||||
style: Style::default(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Holds data to be displayed in a [`Table`] widget.
|
||||
///
|
||||
/// A [`Row`] is a collection of cells. It can be created from simple strings:
|
||||
/// ```rust
|
||||
/// # use ratatui::widgets::Row;
|
||||
/// Row::new(vec!["Cell1", "Cell2", "Cell3"]);
|
||||
/// ```
|
||||
///
|
||||
/// But if you need a bit more control over individual cells, you can explicitly create [`Cell`]s:
|
||||
/// ```rust
|
||||
/// # use ratatui::widgets::{Row, Cell};
|
||||
/// # use ratatui::style::{Style, Color};
|
||||
/// Row::new(vec![
|
||||
/// Cell::from("Cell1"),
|
||||
/// Cell::from("Cell2").style(Style::default().fg(Color::Yellow)),
|
||||
/// ]);
|
||||
/// ```
|
||||
///
|
||||
/// You can also construct a row from any type that can be converted into [`Text`]:
|
||||
/// ```rust
|
||||
/// # use std::borrow::Cow;
|
||||
/// # use ratatui::widgets::Row;
|
||||
/// Row::new(vec![
|
||||
/// Cow::Borrowed("hello"),
|
||||
/// Cow::Owned("world".to_uppercase()),
|
||||
/// ]);
|
||||
/// ```
|
||||
///
|
||||
/// By default, a row has a height of 1 but you can change this using [`Row::height`].
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Default)]
|
||||
pub struct Row<'a> {
|
||||
cells: Vec<Cell<'a>>,
|
||||
height: u16,
|
||||
style: Style,
|
||||
bottom_margin: u16,
|
||||
}
|
||||
|
||||
impl<'a> Row<'a> {
|
||||
/// Creates a new [`Row`] from an iterator where items can be converted to a [`Cell`].
|
||||
pub fn new<T>(cells: T) -> Self
|
||||
where
|
||||
T: IntoIterator,
|
||||
T::Item: Into<Cell<'a>>,
|
||||
{
|
||||
Self {
|
||||
height: 1,
|
||||
cells: cells.into_iter().map(|c| c.into()).collect(),
|
||||
style: Style::default(),
|
||||
bottom_margin: 0,
|
||||
}
|
||||
}
|
||||
|
||||
/// Set the fixed height of the [`Row`]. Any [`Cell`] whose content has more lines than this
|
||||
/// height will see its content truncated.
|
||||
pub fn height(mut self, height: u16) -> Self {
|
||||
self.height = height;
|
||||
self
|
||||
}
|
||||
|
||||
/// Set the [`Style`] of the entire row. This [`Style`] can be overridden by the [`Style`] of a
|
||||
/// any individual [`Cell`] or event by their [`Text`] content.
|
||||
pub fn style(mut self, style: Style) -> Self {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
/// Set the bottom margin. By default, the bottom margin is `0`.
|
||||
pub fn bottom_margin(mut self, margin: u16) -> Self {
|
||||
self.bottom_margin = margin;
|
||||
self
|
||||
}
|
||||
|
||||
/// Returns the total height of the row.
|
||||
fn total_height(&self) -> u16 {
|
||||
self.height.saturating_add(self.bottom_margin)
|
||||
}
|
||||
}
|
||||
|
||||
/// A widget to display data in formatted columns.
|
||||
///
|
||||
/// It is a collection of [`Row`]s, themselves composed of [`Cell`]s:
|
||||
/// ```rust
|
||||
/// # use ratatui::widgets::{Block, Borders, Table, Row, Cell};
|
||||
/// # use ratatui::layout::Constraint;
|
||||
/// # use ratatui::style::{Style, Color, Modifier};
|
||||
/// # use ratatui::text::{Text, Spans, Span};
|
||||
/// Table::new(vec![
|
||||
/// // Row can be created from simple strings.
|
||||
/// Row::new(vec!["Row11", "Row12", "Row13"]),
|
||||
/// // You can style the entire row.
|
||||
/// Row::new(vec!["Row21", "Row22", "Row23"]).style(Style::default().fg(Color::Blue)),
|
||||
/// // If you need more control over the styling you may need to create Cells directly
|
||||
/// Row::new(vec![
|
||||
/// Cell::from("Row31"),
|
||||
/// Cell::from("Row32").style(Style::default().fg(Color::Yellow)),
|
||||
/// Cell::from(Spans::from(vec![
|
||||
/// Span::raw("Row"),
|
||||
/// Span::styled("33", Style::default().fg(Color::Green))
|
||||
/// ])),
|
||||
/// ]),
|
||||
/// // If a Row need to display some content over multiple lines, you just have to change
|
||||
/// // its height.
|
||||
/// Row::new(vec![
|
||||
/// Cell::from("Row\n41"),
|
||||
/// Cell::from("Row\n42"),
|
||||
/// Cell::from("Row\n43"),
|
||||
/// ]).height(2),
|
||||
/// ])
|
||||
/// // You can set the style of the entire Table.
|
||||
/// .style(Style::default().fg(Color::White))
|
||||
/// // It has an optional header, which is simply a Row always visible at the top.
|
||||
/// .header(
|
||||
/// Row::new(vec!["Col1", "Col2", "Col3"])
|
||||
/// .style(Style::default().fg(Color::Yellow))
|
||||
/// // If you want some space between the header and the rest of the rows, you can always
|
||||
/// // specify some margin at the bottom.
|
||||
/// .bottom_margin(1)
|
||||
/// )
|
||||
/// // As any other widget, a Table can be wrapped in a Block.
|
||||
/// .block(Block::default().title("Table"))
|
||||
/// // Columns widths are constrained in the same way as Layout...
|
||||
/// .widths(&[Constraint::Length(5), Constraint::Length(5), Constraint::Length(10)])
|
||||
/// // ...and they can be separated by a fixed spacing.
|
||||
/// .column_spacing(1)
|
||||
/// // If you wish to highlight a row in any specific way when it is selected...
|
||||
/// .highlight_style(Style::default().add_modifier(Modifier::BOLD))
|
||||
/// // ...and potentially show a symbol in front of the selection.
|
||||
/// .highlight_symbol(">>");
|
||||
/// ```
|
||||
#[derive(Debug, Clone, PartialEq, Eq)]
|
||||
pub struct Table<'a> {
|
||||
/// A block to wrap the widget in
|
||||
block: Option<Block<'a>>,
|
||||
/// Base style for the widget
|
||||
style: Style,
|
||||
/// Width constraints for each column
|
||||
widths: &'a [Constraint],
|
||||
/// Space between each column
|
||||
column_spacing: u16,
|
||||
/// Style used to render the selected row
|
||||
highlight_style: Style,
|
||||
/// Symbol in front of the selected rom
|
||||
highlight_symbol: Option<&'a str>,
|
||||
/// Optional header
|
||||
header: Option<Row<'a>>,
|
||||
/// Data to display in each row
|
||||
rows: Vec<Row<'a>>,
|
||||
}
|
||||
|
||||
impl<'a> Table<'a> {
|
||||
pub fn new<T>(rows: T) -> Self
|
||||
where
|
||||
T: IntoIterator<Item = Row<'a>>,
|
||||
{
|
||||
Self {
|
||||
block: None,
|
||||
style: Style::default(),
|
||||
widths: &[],
|
||||
column_spacing: 1,
|
||||
highlight_style: Style::default(),
|
||||
highlight_symbol: None,
|
||||
header: None,
|
||||
rows: rows.into_iter().collect(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn block(mut self, block: Block<'a>) -> Self {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn header(mut self, header: Row<'a>) -> Self {
|
||||
self.header = Some(header);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn widths(mut self, widths: &'a [Constraint]) -> Self {
|
||||
let between_0_and_100 = |&w| match w {
|
||||
Constraint::Percentage(p) => p <= 100,
|
||||
_ => true,
|
||||
};
|
||||
assert!(
|
||||
widths.iter().all(between_0_and_100),
|
||||
"Percentages should be between 0 and 100 inclusively."
|
||||
);
|
||||
self.widths = widths;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Self {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn highlight_symbol(mut self, highlight_symbol: &'a str) -> Self {
|
||||
self.highlight_symbol = Some(highlight_symbol);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn highlight_style(mut self, highlight_style: Style) -> Self {
|
||||
self.highlight_style = highlight_style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn column_spacing(mut self, spacing: u16) -> Self {
|
||||
self.column_spacing = spacing;
|
||||
self
|
||||
}
|
||||
|
||||
fn get_columns_widths(&self, max_width: u16, has_selection: bool) -> Vec<u16> {
|
||||
let mut constraints = Vec::with_capacity(self.widths.len() * 2 + 1);
|
||||
if has_selection {
|
||||
let highlight_symbol_width =
|
||||
self.highlight_symbol.map(|s| s.width() as u16).unwrap_or(0);
|
||||
constraints.push(Constraint::Length(highlight_symbol_width));
|
||||
}
|
||||
for constraint in self.widths {
|
||||
constraints.push(*constraint);
|
||||
constraints.push(Constraint::Length(self.column_spacing));
|
||||
}
|
||||
if !self.widths.is_empty() {
|
||||
constraints.pop();
|
||||
}
|
||||
let chunks = Layout::default()
|
||||
.direction(Direction::Horizontal)
|
||||
.constraints(constraints)
|
||||
.expand_to_fill(false)
|
||||
.split(Rect {
|
||||
x: 0,
|
||||
y: 0,
|
||||
width: max_width,
|
||||
height: 1,
|
||||
});
|
||||
let mut chunks = &chunks[..];
|
||||
if has_selection {
|
||||
chunks = &chunks[1..];
|
||||
}
|
||||
chunks.iter().step_by(2).map(|c| c.width).collect()
|
||||
}
|
||||
|
||||
fn get_row_bounds(
|
||||
&self,
|
||||
selected: Option<usize>,
|
||||
offset: usize,
|
||||
max_height: u16,
|
||||
) -> (usize, usize) {
|
||||
let offset = offset.min(self.rows.len().saturating_sub(1));
|
||||
let mut start = offset;
|
||||
let mut end = offset;
|
||||
let mut height = 0;
|
||||
for item in self.rows.iter().skip(offset) {
|
||||
if height + item.height > max_height {
|
||||
break;
|
||||
}
|
||||
height += item.total_height();
|
||||
end += 1;
|
||||
}
|
||||
|
||||
let selected = selected.unwrap_or(0).min(self.rows.len() - 1);
|
||||
while selected >= end {
|
||||
height = height.saturating_add(self.rows[end].total_height());
|
||||
end += 1;
|
||||
while height > max_height {
|
||||
height = height.saturating_sub(self.rows[start].total_height());
|
||||
start += 1;
|
||||
}
|
||||
}
|
||||
while selected < start {
|
||||
start -= 1;
|
||||
height = height.saturating_add(self.rows[start].total_height());
|
||||
while height > max_height {
|
||||
end -= 1;
|
||||
height = height.saturating_sub(self.rows[end].total_height());
|
||||
}
|
||||
}
|
||||
(start, end)
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, Default)]
|
||||
pub struct TableState {
|
||||
offset: usize,
|
||||
selected: Option<usize>,
|
||||
}
|
||||
|
||||
impl TableState {
|
||||
pub fn selected(&self) -> Option<usize> {
|
||||
self.selected
|
||||
}
|
||||
|
||||
pub fn select(&mut self, index: Option<usize>) {
|
||||
self.selected = index;
|
||||
if index.is_none() {
|
||||
self.offset = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns a copy of the receiver's scroll offset.
|
||||
///
|
||||
/// This is useful, for example, if you need to "synchronize" the scrolling of a `Table` and a `Paragraph`.
|
||||
pub fn offset(&self) -> usize {
|
||||
self.offset
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> StatefulWidget for Table<'a> {
|
||||
type State = TableState;
|
||||
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
|
||||
if area.area() == 0 {
|
||||
return;
|
||||
}
|
||||
buf.set_style(area, self.style);
|
||||
let table_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
let has_selection = state.selected.is_some();
|
||||
let columns_widths = self.get_columns_widths(table_area.width, has_selection);
|
||||
let highlight_symbol = self.highlight_symbol.unwrap_or("");
|
||||
let blank_symbol = " ".repeat(highlight_symbol.width());
|
||||
let mut current_height = 0;
|
||||
let mut rows_height = table_area.height;
|
||||
|
||||
// Draw header
|
||||
if let Some(ref header) = self.header {
|
||||
let max_header_height = table_area.height.min(header.total_height());
|
||||
buf.set_style(
|
||||
Rect {
|
||||
x: table_area.left(),
|
||||
y: table_area.top(),
|
||||
width: table_area.width,
|
||||
height: table_area.height.min(header.height),
|
||||
},
|
||||
header.style,
|
||||
);
|
||||
let mut col = table_area.left();
|
||||
if has_selection {
|
||||
col += (highlight_symbol.width() as u16).min(table_area.width);
|
||||
}
|
||||
for (width, cell) in columns_widths.iter().zip(header.cells.iter()) {
|
||||
render_cell(
|
||||
buf,
|
||||
cell,
|
||||
Rect {
|
||||
x: col,
|
||||
y: table_area.top(),
|
||||
width: *width,
|
||||
height: max_header_height,
|
||||
},
|
||||
);
|
||||
col += *width + self.column_spacing;
|
||||
}
|
||||
current_height += max_header_height;
|
||||
rows_height = rows_height.saturating_sub(max_header_height);
|
||||
}
|
||||
|
||||
// Draw rows
|
||||
if self.rows.is_empty() {
|
||||
return;
|
||||
}
|
||||
let (start, end) = self.get_row_bounds(state.selected, state.offset, rows_height);
|
||||
state.offset = start;
|
||||
for (i, table_row) in self
|
||||
.rows
|
||||
.iter_mut()
|
||||
.enumerate()
|
||||
.skip(state.offset)
|
||||
.take(end - start)
|
||||
{
|
||||
let (row, col) = (table_area.top() + current_height, table_area.left());
|
||||
current_height += table_row.total_height();
|
||||
let table_row_area = Rect {
|
||||
x: col,
|
||||
y: row,
|
||||
width: table_area.width,
|
||||
height: table_row.height,
|
||||
};
|
||||
buf.set_style(table_row_area, table_row.style);
|
||||
let is_selected = state.selected.map(|s| s == i).unwrap_or(false);
|
||||
let table_row_start_col = if has_selection {
|
||||
let symbol = if is_selected {
|
||||
highlight_symbol
|
||||
} else {
|
||||
&blank_symbol
|
||||
};
|
||||
let (col, _) =
|
||||
buf.set_stringn(col, row, symbol, table_area.width as usize, table_row.style);
|
||||
col
|
||||
} else {
|
||||
col
|
||||
};
|
||||
let mut col = table_row_start_col;
|
||||
for (width, cell) in columns_widths.iter().zip(table_row.cells.iter()) {
|
||||
render_cell(
|
||||
buf,
|
||||
cell,
|
||||
Rect {
|
||||
x: col,
|
||||
y: row,
|
||||
width: *width,
|
||||
height: table_row.height,
|
||||
},
|
||||
);
|
||||
col += *width + self.column_spacing;
|
||||
}
|
||||
if is_selected {
|
||||
buf.set_style(table_row_area, self.highlight_style);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn render_cell(buf: &mut Buffer, cell: &Cell, area: Rect) {
|
||||
buf.set_style(area, cell.style);
|
||||
for (i, spans) in cell.content.lines.iter().enumerate() {
|
||||
if i as u16 >= area.height {
|
||||
break;
|
||||
}
|
||||
buf.set_spans(area.x, area.y + i as u16, spans, area.width);
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for Table<'a> {
|
||||
fn render(self, area: Rect, buf: &mut Buffer) {
|
||||
let mut state = TableState::default();
|
||||
StatefulWidget::render(self, area, buf, &mut state);
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
#[should_panic]
|
||||
fn table_invalid_percentages() {
|
||||
Table::new(vec![]).widths(&[Constraint::Percentage(110)]);
|
||||
}
|
||||
}
|
@ -1,129 +0,0 @@
|
||||
use crate::ratatui::{
|
||||
buffer::Buffer,
|
||||
layout::Rect,
|
||||
style::Style,
|
||||
symbols,
|
||||
text::{Span, Spans},
|
||||
widgets::{Block, Widget},
|
||||
};
|
||||
|
||||
/// A widget to display available tabs in a multiple panels context.
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// ```
|
||||
/// # use ratatui::widgets::{Block, Borders, Tabs};
|
||||
/// # use ratatui::style::{Style, Color};
|
||||
/// # use ratatui::text::{Spans};
|
||||
/// # use ratatui::symbols::{DOT};
|
||||
/// let titles = ["Tab1", "Tab2", "Tab3", "Tab4"].iter().cloned().map(Spans::from).collect();
|
||||
/// Tabs::new(titles)
|
||||
/// .block(Block::default().title("Tabs").borders(Borders::ALL))
|
||||
/// .style(Style::default().fg(Color::White))
|
||||
/// .highlight_style(Style::default().fg(Color::Yellow))
|
||||
/// .divider(DOT);
|
||||
/// ```
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct Tabs<'a> {
|
||||
/// A block to wrap this widget in if necessary
|
||||
block: Option<Block<'a>>,
|
||||
/// One title for each tab
|
||||
titles: Vec<Spans<'a>>,
|
||||
/// The index of the selected tabs
|
||||
selected: usize,
|
||||
/// The style used to draw the text
|
||||
style: Style,
|
||||
/// Style to apply to the selected item
|
||||
highlight_style: Style,
|
||||
/// Tab divider
|
||||
divider: Span<'a>,
|
||||
}
|
||||
|
||||
impl<'a> Tabs<'a> {
|
||||
pub fn new(titles: Vec<Spans<'a>>) -> Tabs<'a> {
|
||||
Tabs {
|
||||
block: None,
|
||||
titles,
|
||||
selected: 0,
|
||||
style: Default::default(),
|
||||
highlight_style: Default::default(),
|
||||
divider: Span::raw(symbols::line::VERTICAL),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn block(mut self, block: Block<'a>) -> Tabs<'a> {
|
||||
self.block = Some(block);
|
||||
self
|
||||
}
|
||||
|
||||
pub fn select(mut self, selected: usize) -> Tabs<'a> {
|
||||
self.selected = selected;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn style(mut self, style: Style) -> Tabs<'a> {
|
||||
self.style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn highlight_style(mut self, style: Style) -> Tabs<'a> {
|
||||
self.highlight_style = style;
|
||||
self
|
||||
}
|
||||
|
||||
pub fn divider<T>(mut self, divider: T) -> Tabs<'a>
|
||||
where
|
||||
T: Into<Span<'a>>,
|
||||
{
|
||||
self.divider = divider.into();
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Widget for Tabs<'a> {
|
||||
fn render(mut self, area: Rect, buf: &mut Buffer) {
|
||||
buf.set_style(area, self.style);
|
||||
let tabs_area = match self.block.take() {
|
||||
Some(b) => {
|
||||
let inner_area = b.inner(area);
|
||||
b.render(area, buf);
|
||||
inner_area
|
||||
}
|
||||
None => area,
|
||||
};
|
||||
|
||||
if tabs_area.height < 1 {
|
||||
return;
|
||||
}
|
||||
|
||||
let mut x = tabs_area.left();
|
||||
let titles_length = self.titles.len();
|
||||
for (i, title) in self.titles.into_iter().enumerate() {
|
||||
let last_title = titles_length - 1 == i;
|
||||
x = x.saturating_add(1);
|
||||
let remaining_width = tabs_area.right().saturating_sub(x);
|
||||
if remaining_width == 0 {
|
||||
break;
|
||||
}
|
||||
let pos = buf.set_spans(x, tabs_area.top(), &title, remaining_width);
|
||||
if i == self.selected {
|
||||
buf.set_style(
|
||||
Rect {
|
||||
x,
|
||||
y: tabs_area.top(),
|
||||
width: pos.0.saturating_sub(x),
|
||||
height: 1,
|
||||
},
|
||||
self.highlight_style,
|
||||
);
|
||||
}
|
||||
x = pos.0.saturating_add(1);
|
||||
let remaining_width = tabs_area.right().saturating_sub(x);
|
||||
if remaining_width == 0 || last_title {
|
||||
break;
|
||||
}
|
||||
let pos = buf.set_span(x, tabs_area.top(), &self.divider, remaining_width);
|
||||
x = pos.0;
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue
Block a user