ratatui/CHANGELOG.md
Orhun Parmaksız 3a90e2a761
chore(release): prepare for 0.28.1 (#1343)
🧀 

The current release steps in reference to #1337

- Bump version in `Cargo.toml`
- `git cliff -u -p CHANGELOG.md -t v0.28.1`
- Merge the PR
- `git tag v0.28.1`
- `git push origin v0.28.1`

We can probably automate away most of these with `release-plz` when it
fully supports `git-cliff`'s GitHub integration.
2024-08-25 12:23:26 +03:00

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Changelog

All notable changes to this project will be documented in this file.

v0.28.1 - 2024-08-25

Features

  • ed51c4b (terminal) Add ratatui::init() and restore() methods by @joshka in #1289

    These are simple opinionated methods for creating a terminal that is useful to use in most apps. The new init method creates a crossterm backend writing to stdout, enables raw mode, enters the alternate screen, and sets a panic handler that restores the terminal on panic.

    A minimal hello world now looks a bit like:

    use ratatui::{
        crossterm::event::{self, Event},
        text::Text,
        Frame,
    };
    
    fn main() {
        let mut terminal = ratatui::init();
        loop {
            terminal
                .draw(|frame: &mut Frame| frame.render_widget(Text::raw("Hello World!"), frame.area()))
                .expect("Failed to draw");
            if matches!(event::read().expect("failed to read event"), Event::Key(_)) {
                break;
            }
        }
        ratatui::restore();
    }
    

    A type alias DefaultTerminal is added to represent this terminal type and to simplify any cases where applications need to pass this terminal around. It is equivalent to: Terminal<CrosstermBackend<Stdout>>

    We also added ratatui::try_init() and try_restore(), for situations where you might want to handle initialization errors yourself instead of letting the panic handler fire and cleanup. Simple Apps should prefer the init and restore functions over these functions.

    Corresponding functions to allow passing a TerminalOptions with a Viewport (e.g. inline, fixed) are also available (init_with_options, and try_init_with_options).

    The existing code to create a backend and terminal will remain and is not deprecated by this approach. This just provides a simple one line initialization using the common options.


Bug Fixes

  • aed60b9 (terminal) Terminal::insert_before would crash when called while the viewport filled the screen by @nfachan in #1329

    Reimplement Terminal::insert_before. The previous implementation would insert the new lines in chunks into the area between the top of the screen and the top of the (new) viewport. If the viewport filled the screen, there would be no area in which to insert lines, and the function would crash.

    The new implementation uses as much of the screen as it needs to, all the way up to using the whole screen.

    This commit:

    • adds a scrollback buffer to the TestBackend so that tests can inspect and assert the state of the scrollback buffer in addition to the screen
    • adds functions to TestBackend to assert the state of the scrollback
    • adds and updates TestBackend tests to test the behavior of the scrollback and the new asserting functions
    • reimplements Terminal::insert_before, including adding two new helper functions Terminal::draw_lines and Terminal::scroll_up.
    • updates the documentation for Terminal::insert_before to clarify some of the edge cases
    • updates terminal tests to assert the state of the scrollback buffer
    • adds a new test for the condition that causes the bug
    • adds a conversion constructor Cell::from(char)

    Fixes:https://github.com/ratatui/ratatui/issues/999

  • fdd5d8c (text) Remove trailing newline from single-line Display trait impl by @LucasPickering in #1320

  • 2fb0b8a (uncategorized) Fix u16 overflow in Terminal::insert_before. by @nfachan in #1323

    If the amount of characters in the screen above the viewport was greater than u16::MAX, a multiplication would overflow. The multiply was used to compute the maximum chunk size. The fix is to just do the multiplication as a usize and also do the subsequent division as a usize.

    There is currently another outstanding issue that limits the amount of characters that can be inserted when calling Terminal::insert_before to u16::MAX. However, this bug can still occur even if the viewport and the amount of characters being inserted are both less than u16::MAX, since it's dependant on how large the screen is above the viewport.

    Fixes #1322

Documentation

  • 3631b34 (examples) Add widget implementation example by @joshka in #1147

    This new example documents the various ways to implement widgets in Ratatui. It demonstrates how to implement the Widget trait on a type, a reference, and a mutable reference. It also shows how to use the WidgetRef trait to render boxed widgets.

  • d5477b5 (examples) Use ratatui::crossterm in examples by @joshka in #1315

  • 730dfd4 (examples) Show line gauge in demo example by @montmorill in #1309

  • 9ed85fd (table) Fix incorrect backticks in TableState docs by @airblast-dev in #1342

  • 6d1bd99 (uncategorized) Minor grammar fixes by @matta in #1330

  • 097ee86 (uncategorized) Remove superfluous doc(inline) by @EdJoPaTo in #1310

    It's no longer needed since #1260

  • 3fdb5e8 (uncategorized) Fix typo in terminal.rs by @mrjackwills in #1313

Testing

  • 0d5f3c0 (uncategorized) Avoid unneeded allocations in assertions by @mo8it in #1335

    A vector can be compared to an array.

Miscellaneous Tasks

  • 65da535 (ci) Update release strategy by @orhun in #1337

    closes #1232

    Now we can trigger point releases by pushing a tag (follow the instructions in RELEASE.md). This will create a release with generated changelog.

    There is still a lack of automation (e.g. updating CHANGELOG.md), but this PR is a good start towards improving that.

  • 57d8b74 (ci) Use cargo-docs-rs to lint docs by @joshka in #1318

  • 8b624f5 (maintainers) Remove EdJoPaTo by @EdJoPaTo in #1314

  • 23516bc (uncategorized) Rename ratatui-org to ratatui by @joshka in #1334

    All urls updated to point at https://github.com/ratatui

    To update your repository remotes, you can run the following commands:

    git remote set-url origin https://github.com/ratatui/ratatui
    

Build

  • 0256269 (uncategorized) Simplify Windows build by @joshka in #1317

    Termion is not supported on Windows, so we need to avoid building it.

    Adds a conditional dependency to the Cargo.toml file to only include termion when the target is not Windows. This allows contributors to build using the --all-features flag on Windows rather than needing to specify the features individually.

New Contributors

  • @nfachan made their first contribution in #1329
  • @LucasPickering made their first contribution in #1320
  • @montmorill made their first contribution in #1309

Full Changelog: https://github.com/ratatui/ratatui/compare/v0.28.0...v0.28.1

0.28.0 - 2024-08-07

"If you are what you eat, then I only want to eat the good stuff." Remy

We are excited to announce the new version of ratatui - a Rust library that's all about cooking up TUIs 🐭

In this version, we have upgraded to Crossterm 0.28.0, introducing enhanced functionality and performance improvements. New features include GraphType::Bar, lines in bar charts, and enhanced scroll/navigation methods. We have also refined the terminal module and added brand new methods for cursor positions and text operations.

Release highlights: https://ratatui.rs/highlights/v028/

⚠️ List of breaking changes can be found here.

Features

  • 8d4a102 (barchart) Allow axes to accept Lines by @joshka in #1273 [breaking]

    Fixes:https://github.com/ratatui/ratatui/issues/1272

  • a23ecd9 (buffer) Add Buffer::cell, cell_mut and index implementations by @joshka in #1084

    Code which previously called buf.get(x, y) or buf.get_mut(x, y) should now use index operators, or be transitioned to buff.cell() or buf.cell_mut() for safe access that avoids panics by returning Option<&Cell> and Option<&mut Cell>.

    The new methods accept Into<Position> instead of x and y coordinates, which makes them more ergonomic to use.

    let mut buffer = Buffer::empty(Rect::new(0, 0, 10, 10));
    
    let cell = buf[(0, 0)];
    let cell = buf[Position::new(0, 0)];
    
    let symbol = buf.cell((0, 0)).map(|cell| cell.symbol());
    let symbol = buf.cell(Position::new(0, 0)).map(|cell| cell.symbol());
    
    buf[(0, 0)].set_symbol("🐀");
    buf[Position::new(0, 0)].set_symbol("🐀");
    
    buf.cell_mut((0, 0)).map(|cell| cell.set_symbol("🐀"));
    buf.cell_mut(Position::new(0, 0)).map(|cell| cell.set_symbol("🐀"));
    

    The existing get() and get_mut() methods are marked as deprecated. These are fairly widely used and we will leave these methods around on the buffer for a longer time than our normal deprecation approach (2 major release)

    Addresses part of: https://github.com/ratatui/ratatui/issues/1011


  • afe1534 (chart) Accept IntoIterator for axis labels by @EdJoPaTo in #1283 [breaking]

    BREAKING CHANGES: #1273 is already breaking and this only advances the already breaking part

  • 5b51018 (chart) Add GraphType::Bar by @joshka in #1205

    Demo

  • f97e07c (frame) Replace Frame::size() with Frame::area() by @EdJoPaTo in #1293

    Area is the more correct term for the result of this method. The Frame::size() method is marked as deprecated and will be removed around Ratatui version 0.30 or later.

    Fixes:https://github.com/ratatui/ratatui/pull/1254#issuecomment-2268061409

  • 5b89bd0 (layout) Add Size::ZERO and Position::ORIGIN constants by @EdJoPaTo in #1253

  • b2aa843 (layout) Enable serde for Margin, Position, Rect, Size by @EdJoPaTo in #1255

  • 36d49e5 (table) Select first, last, etc to table state by @robertpsoane in #1198

    Add select_previous, select_next, select_first & select_last to TableState

    Used equivalent API as in ListState

  • 3bb374d (terminal) Add Terminal::try_draw() method by @joshka in #1209

    This makes it easier to write fallible rendering methods that can use the ? operator

    terminal.try_draw(|frame| {
        some_method_that_can_fail()?;
        another_faillible_method()?;
        Ok(())
    })?;
    
  • 3725262 (text) Add Add and AddAssign implementations for Line, Span, and Text by @joshka in #1236

    This enables:

    let line = Span::raw("Red").red() + Span::raw("blue").blue();
    let line = Line::raw("Red").red() + Span::raw("blue").blue();
    let line = Line::raw("Red").red() + Line::raw("Blue").blue();
    let text = Line::raw("Red").red() + Line::raw("Blue").blue();
    let text = Text::raw("Red").red() + Line::raw("Blue").blue();
    
    let mut line = Line::raw("Red").red();
    line += Span::raw("Blue").blue();
    
    let mut text = Text::raw("Red").red();
    text += Line::raw("Blue").blue();
    
    line.extend(vec![Span::raw("1"), Span::raw("2"), Span::raw("3")]);
    
  • c34fb77 (text) Remove unnecessary lifetime from ToText trait by @joshka in #1234 [breaking]

    BREAKING CHANGE:The ToText trait no longer has a lifetime parameter. This change simplifies the trait and makes it easier implement.

  • c68ee6c (uncategorized) Add get/set_cursor_position() methods to Terminal and Backend by @EdJoPaTo in #1284 [breaking]

    The new methods return/accept Into<Position> which can be either a Position or a (u16, u16) tuple.

    backend.set_cursor_position(Position { x: 0, y: 20 })?;
    let position = backend.get_cursor_position()?;
    terminal.set_cursor_position((0, 20))?;
    let position = terminal.set_cursor_position()?;
    
  • b70cd03 (uncategorized) Add ListState / TableState scroll_down_by() / scroll_up_by() methods by @josueBarretogit in #1267

    Implement new methods scroll_down_by(u16) and scroll_up_by(u16) for both Liststate and Tablestate.

    Closes:#1207

Bug Fixes

  • 864cd9f (testbackend) Prevent area mismatch by @EdJoPaTo in #1252

    Removes the height and width fields from TestBackend, which can get out of sync with the Buffer, which currently clamps to 255,255.

    This changes the TestBackend serde representation. It should be possible to read older data, but data generated after this change can't be read by older versions.

  • 7e1bab0 (buffer) Dont render control characters by @EdJoPaTo in #1226

  • c08b522 (chart) Allow removing all the axis labels by @EdJoPaTo in #1282

    axis.labels(vec![]) removes all the labels correctly.

    This makes calling axis.labels with an empty Vec the equivalent of not calling axis.labels. It's likely that this is never used, but it prevents weird cases by removing the mix-up of Option::None and Vec::is_empty, and simplifies the implementation code.

  • 03f3124 (paragraph) Line_width, and line_count include block borders by @airblast-dev in #1235

    The line_width, and line_count methods for Paragraph would not take into account the Block if one was set. This will now correctly calculate the values including the Block's width/height.

    Fixes:#1233

  • 3ca920e (span) Prevent panic on rendering out of y bounds by @EdJoPaTo in #1257

  • 84cb164 (terminal) Make terminal module private by @joshka in #1260 [breaking]

    This is a simplification of the public API that is helpful for new users that are not familiar with how rust re-exports work, and helps avoid clashes with other modules in the backends that are named terminal.

    BREAKING CHANGE:The terminal module is now private and can not be used directly. The types under this module are exported from the root of the crate.

    - use ratatui::terminal::{CompletedFrame, Frame, Terminal, TerminalOptions, ViewPort};
    + use ratatui::{CompletedFrame, Frame, Terminal, TerminalOptions, ViewPort};
    

    Fixes:https://github.com/ratatui/ratatui/issues/1210

  • 29c8c84 (uncategorized) Ignore newlines in Span's Display impl by @SUPERCILEX in #1270

  • cd93547 (uncategorized) Remove unnecessary synchronization in layout cache by @SUPERCILEX in #1245

    Layout::init_cache no longer returns bool and takes a NonZeroUsize instead of usize

    The cache is a thread-local, so doesn't make much sense to require synchronized initialization.

  • b344f95 (uncategorized) Only apply style to first line when rendering a Line by @joshka in #1247

    A Line widget should only apply its style to the first line when rendering and not the entire area. This is because the Line widget should only render a single line of text. This commit fixes the issue by clamping the area to a single line before rendering the text.

  • 7ddfbc0 (uncategorized) Unnecessary allocations when creating Lines by @SUPERCILEX in #1237

  • 84f3341 (uncategorized) Clippy lints from rust 1.80.0 by @joshka in #1238

Refactor

  • bb68bc6 (backend) Return Size from Backend::size instead of Rect by @EdJoPaTo in #1254 [breaking]

    The Backend::size method returns a Size instead of a Rect. There is no need for the position here as it was always 0,0.

  • e81663b (list) Split up list.rs into smaller modules by @joshka in #1204

  • e707ff1 (uncategorized) Internally use Position struct by @EdJoPaTo in #1256

  • 32a0b26 (uncategorized) Simplify WordWrapper implementation by @tranzystorekk in #1193

Documentation

  • 6ce447c (block) Add docs about style inheritance by @joshka in #1190

    Fixes:https://github.com/ratatui/ratatui/issues/1129

  • 55e0880 (block) Update block documentation by @leohscl in #1206

    Update block documentation with constructor methods and setter methods in the main doc comment Added an example for using it to surround widgets

    Fixes:https://github.com/ratatui/ratatui/issues/914

  • f2fa1ae (breaking-changes) Add missing code block by @orhun in #1291

  • f687af7 (breaking-changes) Mention removed lifetime of ToText trait by @orhun in #1292

  • d468463 (breaking-changes) Fix the PR link by @orhun in #1294

  • 1b9bdd4 (contributing) Fix minor issues by @EdJoPaTo in #1300

  • 5f7a7fb (examples) Update barcharts gifs by @joshka in #1306

  • fe4eeab (examples) Simplify the barchart example by @joshka in #1079

    The barchart example has been split into two examples: barchart and barchart-grouped. The barchart example now shows a simple barchart with random data, while the barchart-grouped example shows a grouped barchart with fake revenue data.

    This simplifies the examples a bit so they don't cover too much at once.

    • Simplify the rendering functions
    • Fix several clippy lints that were marked as allowed

  • 6e7b4e4 (examples) Add async example by @joshka in #1248

    This example demonstrates how to use Ratatui with widgets that fetch data asynchronously. It uses the octocrab crate to fetch a list of pull requests from the GitHub API. You will need an environment variable named GITHUB_TOKEN with a valid GitHub personal access token. The token does not need any special permissions.

  • 935a718 (examples) Add missing examples to README by @kibibyt3 in #1225

    Resolves:#1014

  • 50e5674 (examples) Fix: fix typos in tape files by @kibibyt3 in #1224

  • 810da72 (examples) Fix hyperlink example tape by @kibibyt3 in #1222

  • 5eeb1cc (github) Create CODE_OF_CONDUCT.md by @joshka in #1279

  • 7c0665c (layout) Fix typo in example by @EmiOnGit in #1217

  • 272d059 (paragraph) Update main docs by @joshka in #1202

  • bb71e5f (readme) Remove MSRV by @EdJoPaTo in #1266

    This notice was useful when the Cargo.toml had no standardized field for this. Now it's easier to look it up in the Cargo.toml and it's also a single point of truth. Updating the README was overlooked for quite some time so it's better to just omit it rather than having something wrong that will be forgotten again in the future.

  • 8857037 (terminal) Fix imports by @EdJoPaTo in #1263

  • 2fd5ae6 (widgets) Document stability of WidgetRef by @joshka in #1288

    Addresses some confusion about when to implement WidgetRef vs impl Widget for &W. Notes the stability rationale and links to an issue that helps explain the context of where we're at in working this out.

  • 716c931 (uncategorized) Document crossterm breaking change by @joshka in #1281

  • f775030 (uncategorized) Update main lib.rs / README examples by @joshka in #1280

  • 8433d09 (uncategorized) Update demo image by @joshka in #1276

    Follow up to https://github.com/ratatui/ratatui/pull/1203

Performance

  • 663486f (list) Avoid extra allocations when rendering List by @airblast-dev in #1244

    When rendering a List, each ListItem would be cloned. Removing the clone, and replacing Widget::render with WidgetRef::render_ref saves us allocations caused by the clone of the Text<'_> stored inside of ListItem.

    Based on the results of running the "list" benchmark locally; Performance is improved by %1-3 for all render benchmarks for List.

  • 4753b72 (reflow) Eliminate most WordWrapper allocations by @SUPERCILEX in #1239

    On large paragraphs (~1MB), this saves hundreds of thousands of allocations.

    TL;DR:reuse as much memory as possible across next_line calls. Instead of allocating new buffers each time, allocate the buffers once and clear them before reuse.

  • be3eb75 (table) Avoid extra allocations when rendering Table by @airblast-dev in #1242

    When rendering a Table the Text stored inside of a Cell gets cloned before rendering. This removes the clone and uses WidgetRef instead, saving us from allocating a Vec<Line<'_>> inside Text. Also avoids an allocation when rendering the highlight symbol if it contains an owned value.

  • f04bf85 (uncategorized) Add buffer benchmarks by @joshka in #1303

  • e6d2e04 (uncategorized) Move benchmarks into a single benchmark harness by @joshka in #1302

    Consolidates the benchmarks into a single executable rather than having to create a new cargo.toml setting per and makes it easier to rearrange these when adding new benchmarks.

Styling

  • a80a8a6 (format) Lint markdown by @joshka in #1131

    • chore: Fix line endings for changelog
    • chore: cleanup markdown lints
    • ci: add Markdown linter
    • build: add markdown lint to the makefile

Testing

  • 32d0695 (buffer) Ensure emojis are rendered by @EdJoPaTo in #1258

Miscellaneous Tasks

  • 82b70fd (ci) Integrate cargo-semver-checks by @orhun in #1166

    cargo-semver-checks: Lint your crate API changes for semver violations.

  • c245c13 (ci) Onboard bencher for tracking benchmarks by @orhun in #1174

    https://bencher.dev/console/projects/ratatui-org

    Closes:#1092

  • efef0d0 (ci) Change label from breaking change to Type: Breaking Change by @kdheepak in #1243

    This PR changes the label that is auto attached to a PR with a breaking change per the conventional commits specification.

  • 41a9100 (github) Use the GitHub organization team as codeowners by @EdJoPaTo in #1081

    Use GitHub organization team in CODEOWNERS and create MAINTAINERS.md

  • 3e7458f (github) Add forums and faqs to the issue template by @joshka in #1201

  • 45fcab7 (uncategorized) Add rect::rows benchmark by @joshka in #1301

  • edc2af9 (uncategorized) Replace big_text with hardcoded logo by @joshka in #1203

    big_text.rs was a copy of the code from tui-big-text and was getting gradually out of sync with the original crate. It was also rendering something a bit different than the Ratatui logo. This commit replaces the big_text.rs file with a much smaller string representation of the Ratatui logo.

    demo2

  • c2d3850 (uncategorized) Use LF line endings for CHANGELOG.md instead of CRLF by @joshka in #1269

  • a9fe428 (uncategorized) Update cargo-deny config by @EdJoPaTo in #1265

    Update cargo-deny config (noticed in https://github.com/ratatui/ratatui/pull/1263#pullrequestreview-2215488414)

    See https://github.com/EmbarkStudios/cargo-deny/pull/611

  • ffc4300 (uncategorized) Remove executable flag for rs files by @EdJoPaTo in #1262

  • 7bab9f0 (uncategorized) Add more CompactString::const_new instead of new by @joshka in #1230

  • ccf83e6 (uncategorized) Update labels in issue templates by @joshka in #1212

Build

  • 379dab9 (uncategorized) Cleanup dev dependencies by @EdJoPaTo in #1231

Continuous Integration

  • 476ac87 (uncategorized) Split up lint job by @EdJoPaTo in #1264

    This helps with identifying what failed right from the title. Also steps after a failing one are now always executed.

    Also shortens the steps a bit by removing obvious names.

New Contributors

  • @SUPERCILEX made their first contribution in #1239

  • @josueBarretogit made their first contribution in #1267

  • @airblast-dev made their first contribution in #1242

  • @kibibyt3 made their first contribution in #1225

  • @EmiOnGit made their first contribution in #1217

  • @leohscl made their first contribution in #1206

  • @robertpsoane made their first contribution in #1198

Full Changelog: https://github.com/ratatui/ratatui/compare/v0.27.0...0.28.0

0.27.0 - 2024-06-24

In this version, we have focused on enhancing usability and functionality with new features like background styles for LineGauge, palette colors, and various other improvements including improved performance. Also, we added brand new examples for tracing and creating hyperlinks!

Release highlights: https://ratatui.rs/highlights/v027/

⚠️ List of breaking changes can be found here.

Features

  • eef1afe (linegauge) Allow LineGauge background styles by @nowNick in #565

    This PR deprecates `gauge_style` in favor of `filled_style` and
    `unfilled_style` which can have its foreground and background styled.
    
    `cargo run --example=line_gauge --features=crossterm`
    

    https://github.com/ratatui/ratatui/assets/5149215/5fb2ce65-8607-478f-8be4-092e08612f5b

    Implements:https://github.com/ratatui/ratatui/issues/424

  • 1365620 (borders) Add FULL and EMPTY border sets by @joshka in #1182

    border::FULL uses a full block symbol, while border::EMPTY uses an empty space. This is useful for when you need to allocate space for the border and apply the border style to a block without actually drawing a border. This makes it possible to style the entire title area or a block rather than just the title content.

use ratatui::{symbols::border, widgets::Block};
let block = Block::bordered().title("Title").border_set(border::FULL);
let block = Block::bordered().title("Title").border_set(border::EMPTY);
cargo run --example tracing
RUST_LOG=trace cargo run --example=tracing
cat tracing.log

Made with VHS

  • 1520ed9 (layout) Impl Display for Position and Size by @joshka in #1162

  • 46977d8 (list) Add list navigation methods (first, last, previous, next) by @joshka in #1159 [breaking]

    Also cleans up the list example significantly (see also
    <https://github.com/ratatui/ratatui/issues/1157>)
    

    Fixes:https://github.com/ratatui/ratatui/pull/1159

    BREAKING CHANGE:The List widget now clamps the selected index to the bounds of the list when navigating with first, last, previous, and next, as well as when setting the index directly with select.

  • 10d7788 (style) Add conversions from the palette crate colors by @joshka in #1172

    This is behind the "palette" feature flag.
    
    ```rust
    use palette::{LinSrgb, Srgb};
    use ratatui::style::Color;
    
    let color = Color::from(Srgb::new(1.0f32, 0.0, 0.0));
    let color = Color::from(LinSrgb::new(1.0f32, 0.0, 0.0));
    ```
    
  • 7ef2dae (text) support conversion from Display to Span, Line and Text by @orhun in #1167

    Now you can create `Line` and `Text` from numbers like so:
    
    ```rust
    let line = 42.to_line();
    let text = 666.to_text();
    ```
    
  • 74a32af (uncategorized) Re-export backends from the ratatui crate by @joshka in #1151

    `crossterm`, `termion`, and `termwiz` can now be accessed as
    `ratatui::{crossterm, termion, termwiz}` respectively. This makes it
    possible to just add the Ratatui crate as a dependency and use the
    backend of choice without having to add the backend crates as
    dependencies.
    
    To update existing code, replace all instances of `crossterm::` with
    `ratatui::crossterm::`, `termion::` with `ratatui::termion::`, and
    `termwiz::` with `ratatui::termwiz::`.
    
  • 3594180 (uncategorized) Make Stylize's .bg(color) generic by @kdheepak in #1103 [breaking]

  • 0b5fd6b (uncategorized) Add writer() and writer_mut() to termion and crossterm backends by @enricozb in #991

    It is sometimes useful to obtain access to the writer if we want to see
    what has been written so far. For example, when using &mut [u8] as a
    writer.
    

Bug Fixes

  • efa965e (line) Remove newlines when converting strings to Lines by @joshka in #1191

    Line::from("a\nb") now returns a line with two Spans instead of 1

    Fixes:https://github.com/ratatui/ratatui/issues/1111

  • d370aa7 (span) Ensure that zero-width characters are rendered correctly by @joshka in #1165

  • 127d706 (table) Ensure render offset without selection properly by @joshka in #1187

    Fixes:https://github.com/ratatui/ratatui/issues/1179

  • 4bfdc15 (uncategorized) Render of &str and String doesn't respect area.width by @thscharler in #1177

  • e6871b9 (uncategorized) Avoid unicode-width breaking change in tests by @joshka in #1171

    unicode-width 0.1.13 changed the width of \u{1} from 0 to 1.
    Our tests assumed that \u{1} had a width of 0, so this change replaces
    the \u{1} character with \u{200B} (zero width space) in the tests.
    
    Upstream issue (closed as won't fix):
    https://github.com/unicode-rs/unicode-width/issues/55
    
  • 7f3efb0 (uncategorized) Pin unicode-width crate to 0.1.13 by @joshka in #1170

    semver breaking change in 0.1.13
    <https://github.com/unicode-rs/unicode-width/issues/55>
    
    <!-- Please read CONTRIBUTING.md before submitting any pull request. -->
    
  • 42cda6d (uncategorized) Prevent panic from string_slice by @EdJoPaTo in #1140

    https://rust-lang.github.io/rust-clippy/master/index.html#string_slice

Refactor

  • 73fd367 (block) Group builder pattern methods by @EdJoPaTo in #1134

  • 257db62 (cell) Must_use and simplify style() by @EdJoPaTo in #1124

    <!-- Please read CONTRIBUTING.md before submitting any pull request. -->
    
  • bf20369 (cell) Reset instead of applying default by @EdJoPaTo in #1127

    Using reset is clearer to me what actually happens. On the other case a
    struct is created to override the old one completely which basically
    does the same in a less clear way.
    
  • 7d175f8 (lint) Fix new lint warnings by @EdJoPaTo in #1178

  • cf67ed9 (lint) Use clippy::or_fun_call by @EdJoPaTo in #1138

    https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call

  • 4770e71 (list) Remove deprecated start_corner and Corner by @Valentin271 in #759 [breaking]

    List::start_corner was deprecated in v0.25. Use List::direction and ListDirection instead.

- list.start_corner(Corner::TopLeft);
- list.start_corner(Corner::TopRight);
// This is not an error, BottomRight rendered top to bottom previously
- list.start_corner(Corner::BottomRight);
// all becomes
+ list.direction(ListDirection::TopToBottom);
- list.start_corner(Corner::BottomLeft);
// becomes
+ list.direction(ListDirection::BottomToTop);

layout::Corner is removed entirely.

  • 4f77910 (padding) Add Padding::ZERO as a constant by @EdJoPaTo in #1133

    Deprecate Padding::zero()
    
  • 8061813 (uncategorized) Expand glob imports by @joshka in #1152

    Consensus is that explicit imports make it easier to understand the
    example code. This commit removes the prelude import from all examples
    and replaces it with the necessary imports, and expands other glob
    imports (widget::*, Constraint::*, KeyCode::*, etc.) everywhere else.
    Prelude glob imports not in examples are not covered by this PR.
    
    See https://github.com/ratatui/ratatui/issues/1150 for more details.
    
  • d929971 (uncategorized) Dont manually impl Default for defaults by @EdJoPaTo in #1142

    Replace `impl Default` by `#[derive(Default)]` when its implementation
    equals.
    
  • 8a60a56 (uncategorized) Needless_pass_by_ref_mut by @EdJoPaTo in #1137

    https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut

  • 1de9a82 (uncategorized) Simplify if let by @EdJoPaTo in #1135

    While looking through lints
    [`clippy::option_if_let_else`](https://rust-lang.github.io/rust-clippy/master/index.html#option_if_let_else)
    found these. Other findings are more complex so I skipped them.
    

Documentation

  • 1908b06 (borders) Add missing closing code blocks by @orhun in #1195

  • 38bb196 (breaking-changes) Mention LineGauge::gauge_style by @orhun in #1194

    see #565

  • 07efde5 (examples) Add hyperlink example by @joshka in #1063

  • 7fdccaf (examples) Add vhs tapes for constraint-explorer and minimal examples by @joshka in #1164

  • 4f307e6 (examples) Simplify paragraph example by @joshka in #1169

    Related:https://github.com/ratatui/ratatui/issues/1157

  • f429f68 (examples) Remove lifetimes from the List example by @matta in #1132

    Simplify the List example by removing lifetimes not strictly necessary
    to demonstrate how Ratatui lists work. Instead, the sample strings are
    copied into each `TodoItem`. To further simplify, I changed the code to
    use a new TodoItem::new function, rather than an implementation of the
    `From` trait.
    
  • 308c1df (readme) Add links to forum by @joshka in #1188

  • 2f8a936 (uncategorized) Fix links on docs.rs by @EdJoPaTo in #1144

    This also results in a more readable Cargo.toml as the locations of the
    things are more obvious now.
    
    Includes rewording of the underline-color feature.
    
    Logs of the errors: https://docs.rs/crate/ratatui/0.26.3/builds/1224962
    Also see #989
    

Performance

  • 4ce67fc (buffer) Filled moves the cell to be filled by @EdJoPaTo in #1148 [breaking]

  • 8b447ec (rect) Rect::inner takes Margin directly instead of reference by @EdJoPaTo in #1008 [breaking]

    BREAKING CHANGE:Margin needs to be passed without reference now.

-let area = area.inner(&Margin {
+let area = area.inner(Margin {
     vertical: 0,
     horizontal: 2,
 });

Styling

  • df4b706 (uncategorized) Enable more rustfmt settings by @EdJoPaTo in #1125

Testing

  • d6587bc (style) Use rstest by @EdJoPaTo in #1136

    <!-- Please read CONTRIBUTING.md before submitting any pull request. -->
    

Miscellaneous Tasks

  • 7b45f74 (prelude) Add / remove items by @joshka in #1149 [breaking]

    his PR removes the items from the prelude that don't form a coherent
    common vocabulary and adds the missing items that do.
    
    Based on a comment at
    <https://www.reddit.com/r/rust/comments/1cle18j/comment/l2uuuh7/>
    

    BREAKING CHANGE:The following items have been removed from the prelude:

  • style::Styled - this trait is useful for widgets that want to support the Stylize trait, but it adds complexity as widgets have two style methods and a set_style method.

  • symbols::Marker - this item is used by code that needs to draw to the Canvas widget, but it's not a common item that would be used by most users of the library.

  • terminal::{CompletedFrame, TerminalOptions, Viewport} - these items are rarely used by code that needs to interact with the terminal, and they're generally only ever used once in any app.

The following items have been added to the prelude:

  • layout::{Position, Size} - these items are used by code that needs to interact with the layout system. These are newer items that were added in the last few releases, which should be used more liberally.

  • cd64367 (symbols) Add tests for line symbols by @joshka in #1186

  • 8cfc316 (uncategorized) Alphabetize examples in Cargo.toml by @joshka in #1145

Build

  • 70df102 (bench) Improve benchmark consistency by @EdJoPaTo in #1126

    Codegen units are optimized on their own. Per default bench / release
    have 16 codegen units. What ends up in a codeget unit is rather random
    and can influence a benchmark result as a code change can move stuff
    into a different codegen unit → prevent / allow LLVM optimizations
    unrelated to the actual change.
    
    More details: https://doc.rust-lang.org/cargo/reference/profiles.html
    

New Contributors

  • @thscharler made their first contribution in #1177
  • @matta made their first contribution in #1132
  • @nowNick made their first contribution in #565
  • @enricozb made their first contribution in #991

Full Changelog: https://github.com/ratatui/ratatui/compare/v0.26.3...v0.27.0

0.26.3 - 2024-05-19

We are happy to announce a brand new Ratatui Forum 🐭 for Rust & TUI enthusiasts.

This is a patch release that fixes the unicode truncation bug, adds performance and quality of life improvements.

Release highlights: https://ratatui.rs/highlights/v0263/

Features

  • 97ee102 (buffer) Track_caller for index_of by @EdJoPaTo in #1046 **

    The caller put in the wrong x/y -> the caller is the cause.
    
  • bf09234 (table) Make TableState::new const by @EdJoPaTo in #1040

  • eb281df (uncategorized) Use inner Display implementation by @EdJoPaTo in #1097

  • ec763af (uncategorized) Make Stylize's .bg(color) generic by @kdheepak in #1099

    This PR makes `.bg(color)` generic accepting anything that can be
    converted into `Color`; similar to the `.fg(color)` method on the same
    trait
    
  • 4d1784f (uncategorized) Re-export ParseColorError as style::ParseColorError by @joshka in #1086

    Fixes:https://github.com/ratatui/ratatui/issues/1085

Bug Fixes

  • 366cbae (buffer) Fix Debug panic and fix formatting of overridden parts by @EdJoPaTo in #1098

    Fix panic in `Debug for Buffer` when `width == 0`.
    Also corrects the output when symbols are overridden.
    
  • 4392759 (examples) Changed user_input example to work with multi-byte unicode chars by @OkieOth in #1069

    This is the proposed solution for issue #1068. It solves the bug in the
    user_input example with multi-byte UTF-8 characters as input.
    

    Fixes:#1068


  • 20fc0dd (examples) Fix key handling in constraints by @psobolik in #1066

    Add check for `KeyEventKind::Press` to constraints example's event
    handler to eliminate double keys
    on Windows.
    

    Fixes:#1062


  • f4637d4 (reflow) Allow wrapping at zero width whitespace by @kxxt in #1074

  • 699c2d7 (uncategorized) Unicode truncation bug by @joshka in #1089

    - Rewrote the line / span rendering code to take into account how
    multi-byte / wide emoji characters are truncated when rendering into
    areas that cannot accommodate them in the available space
    - Added comprehensive coverage over the edge cases
    - Adds a benchmark to ensure perf
    

    Fixes:https://github.com/ratatui/ratatui/issues/1032

  • b30411d (uncategorized) Termwiz underline color test by @joshka in #1094

    Fixes code that doesn't compile in the termwiz tests when
    underline-color feature is enabled.
    
  • 5f1e119 (uncategorized) Correct feature flag typo for termwiz by @joshka in #1088

    underline-color was incorrectly spelt as underline_color
    
  • 0a16496 (uncategorized) Use to_string to serialize Color by @SleepySwords in #934

    Since deserialize now uses `FromStr` to deserialize color, serializing
    `Color` RGB values, as well as index values, would produce an output
    that would no longer be able to be deserialized without causing an
    error.
    

    Color::Rgb will now be serialized as the hex representation of their value. For example, with serde_json, Color::Rgb(255, 0, 255) would be serialized as "#FF00FF" rather than {"Rgb": [255, 0, 255]}.

    Color::Indexed will now be serialized as just the string of the index. For example, with serde_json, Color::Indexed(10) would be serialized as "10" rather than {"Indexed": 10}.

Other color variants remain the same.

Refactor

  • 2cfe82a (buffer) Deprecate assert_buffer_eq! in favor of assert_eq! by @EdJoPaTo in #1007

    - Simplify `assert_buffer_eq!` logic.
    - Deprecate `assert_buffer_eq!`.
    - Introduce `TestBackend::assert_buffer_lines`.
    
    Also simplify many tests involving buffer comparisons.
    
    For the deprecation, just use `assert_eq` instead of `assert_buffer_eq`:
    
    ```diff
    -assert_buffer_eq!(actual, expected);
    +assert_eq!(actual, expected);
    ```
    
    ---
    
    I noticed `assert_buffer_eq!` creating no test coverage reports and
    looked into this macro. First I simplified it. Then I noticed a bunch of
    `assert_eq!(buffer, …)` and other indirect usages of this macro (like
    `TestBackend::assert_buffer`).
    
    The good thing here is that it's mainly used in tests so not many
    changes to the library code.
    
  • baedc39 (buffer) Simplify set_stringn logic by @EdJoPaTo in #1083

  • 9bd89c2 (clippy) Enable breaking lint checks by @EdJoPaTo in #988

    We need to make sure to not change existing methods without a notice.
    But at the same time this also finds public additions with mistakes
    before they are even released which is what I would like to have.
    
    This renames a method and deprecated the old name hinting to a new name.
    Should this be mentioned somewhere, so it's added to the release notes?
    It's not breaking because the old method is still there.
    
  • bef5bcf (example) Remove pointless new method by @EdJoPaTo in #1038

    Use `App::default()` directly.
    
  • f3172c5 (gauge) Fix internal typo by @EdJoPaTo in #1048

Documentation

  • da1ade7 (github) Update code owners about past maintainers by @orhun in #1073

    As per suggestion in
    https://github.com/ratatui/ratatui/pull/1067#issuecomment-2079766990
    
    It's good for historical purposes!
    
  • 3687f78 (github) Update code owners by @orhun in #1067

    Removes the team members that are not able to review PRs recently (with
    their approval ofc)
    
  • 839cca2 (table) Fix typo in docs for highlight_symbol by @kdheepak in #1108

  • f945a0b (test) Fix typo in TestBackend documentation by @orhun in #1107

  • 828d17a (uncategorized) Add minimal example by @joshka in #1114

  • e95230b (uncategorized) Add note about scrollbar state content length by @Utagai in #1077

Performance

  • 366c2a0 (block) Use Block::bordered by @EdJoPaTo in #1041

    Block::bordered() is shorter than

    Block::new().borders(Borders::ALL), requires one less import (Borders) and in case Block::default() was used before can even be const.

  • 2e71c18 (buffer) Simplify Buffer::filled with macro by @EdJoPaTo in #1036

    The `vec![]` macro is highly optimized by the Rust team and shorter.
    Don't do it manually.
    
    This change is mainly cleaner code. The only production code that uses
    this is `Terminal::with_options` and `Terminal::insert_before` so it's
    not performance relevant on every render.
    
  • 81b9633 (calendar) Use const fn by @EdJoPaTo in #1039

    Also, do the comparison without `as u8`. Stays the same at runtime and
    is cleaner code.
    
  • c442dfd (canvas) Change map data to const instead of static by @EdJoPaTo in #1037

  • 1706b0a (crossterm) Speed up combined fg and bg color changes by up to 20% by @joshka in #1072

  • 1a4bb1c (layout) Avoid allocating memory when using split ergonomic utils by @tranzystorekk in #1105

    Don't create intermediate vec in `Layout::areas` and
    `Layout::spacers` when there's no need for one.
    

Styling

  • aa4260f (uncategorized) Use std::fmt instead of importing Debug and Display by @joshka in #1087

    This is a small universal style change to avoid making this change a
    part of other PRs.
    
    [rationale](https://github.com/ratatui/ratatui/pull/1083#discussion_r1588466060)
    

Testing

  • 3cc29bd (block) Use rstest to simplify test cases by @EdJoPaTo in #1095

Miscellaneous Tasks

  • 5fbb77a (readme) Use terminal theme for badges by @TadoTheMiner in #1026

    The badges in the readme were all the default theme. Giving them
    prettier colors that match the terminal gif is better. I've used the
    colors from the VHS repo.
    
  • bef2bc1 (cargo) Add homepage to Cargo.toml by @joshka in #1080

  • 76e5fe5 (uncategorized) Revert "Make Stylize's .bg(color) generic" by @kdheepak in #1102

    This reverts commit ec763af8512df731799c8f30c38c37252068a4c4 from #1099
    
  • 64eb391 (uncategorized) Fixup cargo lint for windows targets by @joshka in #1071

    Crossterm brings in multiple versions of the same dep
    
  • 326a461 (uncategorized) Add package categories field by @mcskware in #1035

    Add the package categories field in Cargo.toml, with value
    `["command-line-interface"]`. This fixes the (currently non-default)
    clippy cargo group lint
    [`clippy::cargo_common_metadata`](https://rust-lang.github.io/rust-clippy/master/index.html#/cargo_common_metadata).
    
    As per discussion in [Cargo package categories
    suggestions](https://github.com/ratatui/ratatui/discussions/1034),
    this lint is not suggested to be run by default in CI, but rather as an
    occasional one-off as part of the larger
    [`clippy::cargo`](https://doc.rust-lang.org/stable/clippy/lints.html#cargo)
    lint group.
    

Build

  • 4955380 (uncategorized) Remove pre-push hooks by @joshka in #1115

  • 28e81c0 (uncategorized) Add underline-color to all features flag in makefile by @joshka in #1100

  • c75aa19 (uncategorized) Add clippy::cargo lint by @joshka in #1053

    Followup to https://github.com/ratatui/ratatui/pull/1035 and
    https://github.com/ratatui/ratatui/discussions/1034
    
    It's reasonable to enable this and deal with breakage by fixing any
    specific issues that arise.
    

New Contributors

  • @Utagai made their first contribution in #1077
  • @kxxt made their first contribution in #1074
  • @OkieOth made their first contribution in #1069
  • @psobolik made their first contribution in #1066
  • @SleepySwords made their first contribution in #934
  • @mcskware made their first contribution in #1035

Full Changelog: https://github.com/ratatui/ratatui/compare/v0.26.2...v0.26.3

0.26.2 - 2024-04-15

This is a patch release that fixes bugs and adds enhancements, including new iterator constructors, List scroll padding, and various rendering improvements.

Release highlights: https://ratatui.rs/highlights/v0262/

Features

  • 11b452d (layout) Mark various functions as const by @EdJoPaTo in #951

  • 1cff511 (line) Impl Styled for Line by @joshka in #968

    This adds `FromIterator` impls for `Line` and `Text` that allow creating
    `Line` and `Text` instances from iterators of `Span` and `Line`
    instances, respectively.
    
    ```rust
    let line = Line::from_iter(vec!["Hello".blue(), " world!".green()]);
    let line: Line = iter::once("Hello".blue())
        .chain(iter::once(" world!".green()))
        .collect();
    let text = Text::from_iter(vec!["The first line", "The second line"]);
    let text: Text = iter::once("The first line")
        .chain(iter::once("The second line"))
        .collect();
    ```
    
  • 654949b (list) Add Scroll Padding to Lists by @CameronBarnes in #958

    Introduces scroll padding, which allows the api user to request that a certain number of ListItems be kept visible above and below the currently selected item while scrolling.
    
    ```rust
    let list = List::new(items).scroll_padding(1);
    ```
    

    Fixes:https://github.com/ratatui/ratatui/pull/955

  • 26af650 (text) Add push methods for text and line by @joshka in #998

    Adds the following methods to the `Text` and `Line` structs:
    - Text::push_line
    - Text::push_span
    - Line::push_span
    
    This allows for adding lines and spans to a text object without having
    to call methods on the fields directly, which is useful for incremental
    construction of text objects.
    
  • b5bdde0 (text) Add FromIterator impls for Line and Text by @joshka in #967

    This adds `FromIterator` impls for `Line` and `Text` that allow creating
    `Line` and `Text` instances from iterators of `Span` and `Line`
    instances, respectively.
    
    ```rust
    let line = Line::from_iter(vec!["Hello".blue(), " world!".green()]);
    let line: Line = iter::once("Hello".blue())
        .chain(iter::once(" world!".green()))
        .collect();
    let text = Text::from_iter(vec!["The first line", "The second line"]);
    let text: Text = iter::once("The first line")
        .chain(iter::once("The second line"))
        .collect();
    ```
    
  • 12f67e8 (uncategorized) Impl Widget for &str and String by @kdheepak in #952

    Currently, `f.render_widget("hello world".bold(), area)` works but
    `f.render_widget("hello world", area)` doesn't. This PR changes that my
    implementing `Widget` for `&str` and `String`. This makes it easier to
    render strings with no styles as widgets.
    
    Example usage:
    
    ```rust
    terminal.draw(|f| f.render_widget("Hello World!", f.size()))?;
    ```
    
    ---------
    

Bug Fixes

  • 0207160 (line) Line truncation respects alignment by @TadoTheMiner in #987

    When rendering a `Line`, the line will be truncated:
    - on the right for left aligned lines
    - on the left for right aligned lines
    - on bot sides for centered lines
    
    E.g. "Hello World" will be rendered as "Hello", "World", "lo wo" for
    left, right, centered lines respectively.
    

    Fixes:https://github.com/ratatui/ratatui/issues/932

  • c56f49b (list) Saturating_sub to fix highlight_symbol overflow by @mrjackwills in #949

    An overflow (pedantically an underflow) can occur if the
    highlight_symbol is a multi-byte char, and area is reduced to a size
    less than that char length.
    
  • b7778e5 (paragraph) Unit test typo by @joshka in #1022

  • 943c043 (scrollbar) Dont render on 0 length track by @EdJoPaTo in #964

    Fixes a panic when `track_length - 1` is used. (clamp panics on `-1.0`
    being smaller than `0.0`)
    
  • 742a5ea (text) Fix panic when rendering out of bounds by @joshka in #997

    Previously it was possible to cause a panic when rendering to an area
    outside of the buffer bounds. Instead this now correctly renders nothing
    to the buffer.
    
  • f6c4e44 (uncategorized) Ensure that paragraph correctly renders styled text by @joshka in #992

    Paragraph was ignoring the new `Text::style` field added in 0.26.0
    

    Fixes:https://github.com/ratatui/ratatui/issues/990

  • 35e971f (uncategorized) Scrollbar thumb not visible on long lists by @ThomasMiz in #959

    When displaying somewhat-long lists, the `Scrollbar` widget sometimes did not display a thumb character, and only the track will be visible.
    

Refactor

  • 6fd5f63 (lint) Prefer idiomatic for loops by @EdJoPaTo

  • 37b957c (lints) Add lints to scrollbar by @EdJoPaTo

  • c12bcfe (non-src) Apply pedantic lints by @EdJoPaTo in #976

    Fixes many not yet enabled lints (mostly pedantic) on everything that is
    not the lib (examples, benches, tests). Therefore, this is not containing
    anything that can be a breaking change.
    
    Lints are not enabled as that should be the job of #974. I created this
    as a separate PR as it's mostly independent and would only clutter up the
    diff of #974 even more.
    
    Also see
    https://github.com/ratatui/ratatui/pull/974#discussion_r1506458743
    
    ---------
    
  • 8719608 (span) Rename to_aligned_line into into_aligned_line by @EdJoPaTo in #993

    With the Rust method naming conventions these methods are into methods
    consuming the Span. Therefore, it's more consistent to use `into_`
    instead of `to_`.
    
    ```rust
    Span::to_centered_line
    Span::to_left_aligned_line
    Span::to_right_aligned_line
    ```
    
    Are marked deprecated and replaced with the following
    
    ```rust
    Span::into_centered_line
    Span::into_left_aligned_line
    Span::into_right_aligned_line
    ```
    
  • b831c56 (widget-ref) Clippy::needless_pass_by_value by @EdJoPaTo

  • 359204c (uncategorized) Simplify to io::Result by @EdJoPaTo in #1016

    Simplifies the code, logic stays exactly the same.
    
  • 8e68db9 (uncategorized) Remove pointless default on internal structs by @EdJoPaTo in #980

    See #978

Also remove other derives. They are unused and just slow down compilation.

  • 3be189e (uncategorized) Clippy::thread_local_initializer_can_be_made_const by @EdJoPaTo

    enabled by default on nightly
    
  • 5c4efac (uncategorized) Clippy::map_err_ignore by @EdJoPaTo

  • bbb6d65 (uncategorized) Clippy::else_if_without_else by @EdJoPaTo

  • fdb14dc (uncategorized) Clippy::redundant_type_annotations by @EdJoPaTo

  • 9b3b23a (uncategorized) Remove literal suffix by @EdJoPaTo

    it's not needed and can just be assumed
    

    related:clippy::(un)separated_literal_suffix

  • 58b6e0b (uncategorized) Clippy::should_panic_without_expect by @EdJoPaTo

  • c870a41 (uncategorized) Clippy::many_single_char_names by @EdJoPaTo

  • a6036ad (uncategorized) Clippy::similar_names by @EdJoPaTo

  • 060d26b (uncategorized) Clippy::match_same_arms by @EdJoPaTo

  • fcbea9e (uncategorized) Clippy::uninlined_format_args by @EdJoPaTo

  • 14b24e7 (uncategorized) Clippy::if_not_else by @EdJoPaTo

  • 5ed1f43 (uncategorized) Clippy::redundant_closure_for_method_calls by @EdJoPaTo

  • c8c7924 (uncategorized) Clippy::too_many_lines by @EdJoPaTo

  • e3afe7c (uncategorized) Clippy::unreadable_literal by @EdJoPaTo

  • a1f54de (uncategorized) Clippy::bool_to_int_with_if by @EdJoPaTo

  • b8ea190 (uncategorized) Clippy::cast_lossless by @EdJoPaTo

  • 0de5238 (uncategorized) Dead_code by @EdJoPaTo

    enabled by default, only detected by nightly yet
    
  • df5dddf (uncategorized) Unused_imports by @EdJoPaTo

    enabled by default, only detected on nightly yet
    
  • f1398ae (uncategorized) Clippy::useless_vec by @EdJoPaTo

    Lint enabled by default but only nightly finds this yet
    
  • 525848f (uncategorized) Manually apply clippy::use_self for impl with lifetimes by @EdJoPaTo

  • 660c718 (uncategorized) Clippy::empty_line_after_doc_comments by @EdJoPaTo

  • ab951fa (uncategorized) Clippy::return_self_not_must_use by @EdJoPaTo

  • 3cd4369 (uncategorized) Clippy::doc_markdown by @EdJoPaTo

  • 9bc014d (uncategorized) Clippy::items_after_statements by @EdJoPaTo

  • 36a0cd5 (uncategorized) Clippy::deref_by_slicing by @EdJoPaTo

  • f7f6692 (uncategorized) Clippy::equatable_if_let by @EdJoPaTo

  • 01418eb (uncategorized) Clippy::default_trait_access by @EdJoPaTo

  • 8536760 (uncategorized) Clippy::inefficient_to_string by @EdJoPaTo

  • a558b19 (uncategorized) Clippy::implicit_clone by @EdJoPaTo

  • 5b00e3a (uncategorized) Clippy::use_self by @EdJoPaTo

  • 27680c0 (uncategorized) Clippy::semicolon_if_nothing_returned by @EdJoPaTo

Documentation

  • 14461c3 (breaking-changes) Typos and markdownlint by @EdJoPaTo in #1009

  • d0067c8 (license) Update copyright years by @orhun in #962

  • 88bfb5a (text) Update Text and Line docs by @joshka in #969

  • 3b002fd (uncategorized) Update incompatible code warning in examples readme by @joshka in #1013

Performance

  • e02f476 (borders) Allow border!() in const by @EdJoPaTo in #977

    This allows more compiler optimizations when the macro is used.
    
  • 541f0f9 (cell) Use const CompactString::new_inline by @EdJoPaTo in #979

    Some minor find when messing around trying to `const` all the things.
    
    While `reset()` and `default()` can not be `const` it's still a benefit
    when their contents are.
    
  • 65e7923 (scrollbar) Const creation by @EdJoPaTo in #963

    A bunch of `const fn` allow for more performance and `Default` now uses the `const` new implementations.
    
  • 8195f52 (uncategorized) Clippy::needless_pass_by_value by @EdJoPaTo

  • 183c07e (uncategorized) Clippy::trivially_copy_pass_by_ref by @EdJoPaTo

  • a13867f (uncategorized) Clippy::cloned_instead_of_copied by @EdJoPaTo

  • 3834374 (uncategorized) Clippy::missing_const_for_fn by @EdJoPaTo

Miscellaneous Tasks

  • 125ee92 (docs) Fix: fix typos in crate documentation by @orhun in #1002

  • 38c17e0 (editorconfig) Set and apply some defaults by @EdJoPaTo

  • 07da90a (funding) Add eth address for receiving funds from drips.network by @BenJam in #994

  • 078e97e (github) Add EdJoPaTo as a maintainer by @orhun in #986

  • b0314c5 (uncategorized) Remove conventional commit check for PR by @Valentin271 in #950

    This removes conventional commit check for PRs.
    
    Since we use the PR title and description this is useless. It fails a
    lot of time and we ignore it.
    
    IMPORTANT NOTE: This does **not** mean Ratatui abandons conventional
    commits. This only relates to commits in PRs.
    

Build

  • 6e6ba27 (lint) Warn on pedantic and allow the rest by @EdJoPaTo

  • c4ce7e8 (uncategorized) Enable more satisfied lints by @EdJoPaTo

    These lints dont generate warnings and therefore dont need refactoring.
    I think they are useful in the future.
    
  • a4e84a6 (uncategorized) Increase msrv to 1.74.0 by @EdJoPaTo [breaking]

    configure lints in Cargo.toml requires 1.74.0
    

    BREAKING CHANGE:rust 1.74 is required now

New Contributors

  • @TadoTheMiner made their first contribution in #987
  • @BenJam made their first contribution in #994
  • @CameronBarnes made their first contribution in #958
  • @ThomasMiz made their first contribution in #959

Full Changelog: https://github.com/ratatui/ratatui/compare/v0.26.1...0.26.2

0.26.1 - 2024-02-12

This is a patch release that fixes bugs and adds enhancements, including new iterators, title options for blocks, and various rendering improvements.

Features

  • 74a0511 (rect) Add Rect::positions iterator (#928)

    Useful for performing some action on all the cells in a particular area.
    E.g.,
    
    ```rust
    fn render(area: Rect, buf: &mut Buffer) {
       for position in area.positions() {
            buf.get_mut(position.x, position.y).set_symbol("x");
        }
    }
    ```
    
  • 9182f47 (uncategorized) Add Block::title_top and Block::title_top_bottom (#940)

    This adds the ability to add titles to the top and bottom of a block
    without having to use the `Title` struct (which will be removed in a
    future release - likely v0.28.0).
    
    Fixes a subtle bug if the title was created from a right aligned Line
    and was also right aligned. The title would be rendered one cell too far
    to the right.
    
    ```rust
    Block::bordered()
        .title_top(Line::raw("A").left_aligned())
        .title_top(Line::raw("B").centered())
        .title_top(Line::raw("C").right_aligned())
        .title_bottom(Line::raw("D").left_aligned())
        .title_bottom(Line::raw("E").centered())
        .title_bottom(Line::raw("F").right_aligned())
        .render(buffer.area, &mut buffer);
    // renders
    "┌A─────B─────C┐",
    "│             │",
    "└D─────E─────F┘",
    ```
    
    Addresses part of https://github.com/ratatui/ratatui/issues/738
    

Bug Fixes

  • 2202059 (block) Fix crash on empty right aligned title (#933)

    - Simplified implementation of the rendering for block.
    - Introduces a subtle rendering change where centered titles that are
      odd in length will now be rendered one character to the left compared
      to before. This aligns with other places that we render centered text
      and is a more consistent behavior. See
      https://github.com/ratatui/ratatui/pull/807#discussion_r1455645954
      for another example of this.
    

    Fixes: https://github.com/ratatui/ratatui/pull/929

  • 14c67fb (list) Highlight symbol when using a multi-bytes char (#924)

    ratatui v0.26.0 brought a regression in the List widget, in which the
    highlight symbol width was incorrectly calculated - specifically when
    the highlight symbol was a multi-char character, e.g. `▶`.
    
  • 0dcdbea (paragraph) Render Line::styled correctly inside a paragraph (#930)

    Renders the styled graphemes of the line instead of the contained spans.
    
  • fae5862 (uncategorized) Ensure that buffer::set_line sets the line style (#926)

    Fixes a regression in 0.26 where buffer::set_line was no longer setting
    the style. This was due to the new style field on Line instead of being
    stored only in the spans.
    
    Also adds a configuration for just running unit tests to bacon.toml.
    
  • fbb5dfa (uncategorized) Scrollbar rendering when no track symbols are provided (#911)

Refactor

  • c3fb258 (rect) Move iters to module and add docs (#927)

  • e51ca6e (uncategorized) Finish tidying up table (#942)

  • 91040c0 (uncategorized) Rearrange block structure (#939)

Documentation

  • 61a8278 (canvas) Add documentation to canvas module (#913)

    Document the whole `canvas` module. With this, the whole `widgets`
    module is documented.
    
  • d2d91f7 (changelog) Add sponsors section (#908)

  • 410d08b (uncategorized) Add link to FOSDEM 2024 talk (#944)

  • 1f208ff (uncategorized) Add GitHub Sponsors badge (#943)

Performance

  • 0963463 (uncategorized) Use drain instead of remove in chart examples (#922)

Miscellaneous Tasks

  • a4892ad (uncategorized) Fix typo in docsrs example (#946)

  • 18870ce (uncategorized) Fix the method name for setting the Line style (#947)

  • 8fb4630 (uncategorized) Remove github action bot that makes comments nudging commit signing (#937)

    We can consider reverting this commit once this PR is merged:
    https://github.com/1Password/check-signed-commits-action/pull/9
    

Contributors

Thank you so much to everyone that contributed to this release!

Here is the list of contributors who have contributed to ratatui for the first time!

  • @mo8it
  • @m4rch3n1ng

0.26.0 - 2024-02-02

We are excited to announce the new version of ratatui - a Rust library that's all about cooking up TUIs 🐭

In this version, we have primarily focused on simplifications and quality-of-life improvements for providing a more intuitive and user-friendly experience while building TUIs.

Release highlights: https://ratatui.rs/highlights/v026/

⚠️ List of breaking changes can be found here.

💖 Consider sponsoring us at https://github.com/sponsors/ratatui!

Features

  • 79ceb9f (line) Add alignment convenience functions (#856)

    This adds convenience functions `left_aligned()`, `centered()` and
    `right_aligned()` plus unit tests. Updated example code.
    
  • 0df9354 (padding) Add new constructors for padding (#828)

    Adds `proportional`, `symmetric`, `left`, `right`, `top`, and `bottom`
    constructors for Padding struct.
    
    Proportional is
    ```
    /// **NOTE**: Terminal cells are often taller than they are wide, so to make horizontal and vertical
    /// padding seem equal, doubling the horizontal padding is usually pretty good.
    ```
    

    Fixes:https://github.com/ratatui/ratatui/issues/798

  • d726e92 (paragraph) Add alignment convenience functions (#866)

    Added convenience functions left_aligned(), centered() and
    right_aligned() plus unit tests. Updated example code.
    
  • c1ed5c3 (span) Add alignment functions (#873)

    Implemented functions that convert Span into a
    left-/center-/right-aligned Line. Implemented unit tests.
    

    Closes #853

  • b80264d (text) Add alignment convenience functions (#862)

    Adds convenience functions `left_aligned()`, `centered()` and
    `right_aligned()` plus unit tests.
    
  • 23f6938 (block) Add Block::bordered (#736)

    This avoid creating a block with no borders and then settings Borders::ALL. i.e.
    
    ```diff
    - Block::default().borders(Borders::ALL);
    + Block::bordered();
    ```
    
  • ffd5fc7 (color) Add Color::from_u32 constructor (#785)

    Convert a u32 in the format 0x00RRGGBB to a Color.
    
    ```rust
    let white = Color::from_u32(0x00FFFFFF);
    let black = Color::from_u32(0x00000000);
    ```
    
  • 4f2db82 (color) Use the FromStr implementation for deserialization (#705)

    The deserialize implementation for Color used to support only the enum
    names (e.g. Color, LightRed, etc.) With this change, you can use any of
    the strings supported by the FromStr implementation (e.g. black,
    light-red, #00ff00, etc.)
    
  • 1cbe1f5 (constraints) Rename Constraint::Proportional to Constraint::Fill (#880)

    Constraint::Fill is a more intuitive name for the behavior, and it is shorter.

    Resolves #859

  • dfd6db9 (demo2) Add destroy mode to celebrate commit 1000! (#809)

    ```shell
    cargo run --example demo2 --features="crossterm widget-calendar"
    ```
    
    Press `d` to activate destroy mode and Enjoy!
    
    ![Destroy
    Demo2](https://github.com/ratatui/ratatui/blob/1d39444e3dea6f309cf9035be2417ac711c1abc9/examples/demo2-destroy.gif?raw=true)
    
    Vendors a copy of tui-big-text to allow us to use it in the demo.
    
  • 540fd2d (layout) Change Flex::default() (#881) [breaking]

    This PR makes a number of simplifications to the layout and constraint
    features that were added after v0.25.0.
    
    For users upgrading from v0.25.0, the net effect of this PR (along with
    the other PRs) is the following:
    
    - New `Flex` modes have been added.
      - `Flex::Start` (new default)
      - `Flex::Center`
      - `Flex::End`
      - `Flex::SpaceAround`
      - `Flex::SpaceBetween`
      - `Flex::Legacy` (old default)
    - `Min(v)` grows to allocate excess space in all `Flex` modes instead of
    shrinking (except in `Flex::Legacy` where it retains old behavior).
    - `Fill(1)` grows to allocate excess space, growing equally with
    `Min(v)`.
    
    ---
    
    The following contains a summary of the changes in this PR and the
    motivation behind them.
    
    **`Flex`**
    
    - Removes `Flex::Stretch`
    - Renames `Flex::StretchLast` to `Flex::Legacy`
    
    **`Constraint`**
    
    - Removes `Fixed`
    - Makes `Min(v)` grow as much as possible everywhere (except
    `Flex::Legacy` where it retains the old behavior)
    - Makes `Min(v)` grow equally as `Fill(1)` while respecting `Min` lower
    bounds. When `Fill` and `Min` are used together, they both fill excess
    space equally.
    
    Allowing `Min(v)` to grow still allows users to build the same layouts
    as before with `Flex::Start` with no breaking changes to the behavior.
    
    This PR also removes the unstable feature `SegmentSize`.
    
    This is a breaking change to the behavior of constraints. If users want
    old behavior, they can use `Flex::Legacy`.
    
    ```rust
    Layout::vertical([Length(25), Length(25)]).flex(Flex::Legacy)
    ```
    
    Users that have constraint that exceed the available space will probably
    not see any difference or see an improvement in their layouts. Any
    layout with `Min` will be identical in `Flex::Start` and `Flex::Legacy`
    so any layout with `Min` will not be breaking.
    
    Previously, `Table` used `EvenDistribution` internally by default, but
    with that gone the default is now `Flex::Start`. This changes the
    behavior of `Table` (for the better in most cases). The only way for
    users to get exactly the same as the old behavior is to change their
    constraints. I imagine most users will be happier out of the box with
    the new Table default.
    
    Resolves https://github.com/ratatui/ratatui/issues/843
    
    Thanks to @joshka for the direction
    
  • bbcfa55 (layout) Add Rect::contains method (#882)

    This is useful for performing hit tests (i.e. did the user click in an
    area).
    
  • 736605e (layout) Add default impl for Position (#869)

  • 1e75596 (layout) Increase default cache size to 500 (#850)

    This is a somewhat arbitrary size for the layout cache based on adding
    the columns and rows on my laptop's terminal (171+51 = 222) and doubling
    it for good measure and then adding a bit more to make it a round
    number. This gives enough entries to store a layout for every row and
    every column, twice over, which should be enough for most apps. For
    those that need more, the cache size can be set with
    `Layout::init_cache()`.
    

    Fixes:https://github.com/ratatui/ratatui/issues/820

  • 2819eea (layout) Add Position struct (#790)

    This stores the x and y coordinates (columns and rows)
    
    - add conversions from Rect
    - add conversion with Size to Rect
    - add Rect::as_position
    
  • 1561d64 (layout) Add Rect -> Size conversion methods (#789)

    - add Size::new() constructor
    - add Rect::as_size()
    - impl From<Rect> for Size
    - document and add tests for Size
    
  • f13fd73 (layout) Add Rect::clamp() method (#749)

    * feat(layout): add a Rect::clamp() method
    
    This ensures a rectangle does not end up outside an area. This is useful
    when you want to be able to dynamically move a rectangle around, but
    keep it constrained to a certain area.
    
    For example, this can be used to implement a draggable window that can
    be moved around, but not outside the terminal window.
    
    ```rust
    let window_area = Rect::new(state.x, state.y, 20, 20).clamp(area);
    state.x = rect.x;
    state.y = rect.y;
    ```
    
    * refactor: use rstest to simplify clamp test
    
    * fix: use rstest description instead of string
    
    test layout::rect::tests::clamp::case_01_inside ... ok
    test layout::rect::tests::clamp::case_02_up_left ... ok
    test layout::rect::tests::clamp::case_04_up_right ... ok
    test layout::rect::tests::clamp::case_05_left ... ok
    test layout::rect::tests::clamp::case_03_up ... ok
    test layout::rect::tests::clamp::case_06_right ... ok
    test layout::rect::tests::clamp::case_07_down_left ... ok
    test layout::rect::tests::clamp::case_08_down ... ok
    test layout::rect::tests::clamp::case_09_down_right ... ok
    test layout::rect::tests::clamp::case_10_too_wide ... ok
    test layout::rect::tests::clamp::case_11_too_tall ... ok
    test layout::rect::tests::clamp::case_12_too_large ... ok
    
    * fix: less ambiguous docs for this / other rect
    
    * fix: move rstest to dev deps
    
  • 98bcf1c (layout) Add Rect::split method (#729)

    This method splits a Rect and returns a fixed-size array of the
    resulting Rects. This allows the caller to use array destructuring
    to get the individual Rects.
    
    ```rust
    use Constraint::*;
    let layout = &Layout::vertical([Length(1), Min(0)]);
    let [top, main] = area.split(&layout);
    ```
    
  • 0494ee5 (layout) Accept Into for constructors (#744)

    This allows Layout constructors to accept any type that implements
    Into<Constraint> instead of just AsRef<Constraint>. This is useful when
    you want to specify a fixed size for a layout, but don't want to
    explicitly create a Constraint::Length yourself.
    
    ```rust
    Layout::new(Direction::Vertical, [1, 2, 3]);
    Layout::horizontal([1, 2, 3]);
    Layout::vertical([1, 2, 3]);
    Layout::default().constraints([1, 2, 3]);
    ```
    
  • 7ab12ed (layout) Add horizontal and vertical constructors (#728)

    * feat(layout): add vertical and horizontal constructors
    
    This commit adds two new constructors to the `Layout` struct, which
    allow the user to create a vertical or horizontal layout with default
    values.
    
    ```rust
    let layout = Layout::vertical([
        Constraint::Length(10),
        Constraint::Min(5),
        Constraint::Length(10),
    ]);
    
    let layout = Layout::horizontal([
        Constraint::Length(10),
        Constraint::Min(5),
        Constraint::Length(10),
    ]);
    ```
    
  • 4278b40 (line) Implement iterators for Line (#896)

    This allows iterating over the `Span`s of a line using `for` loops and
    other iterator methods.
    
    - add `iter` and `iter_mut` methods to `Line`
    - implement `IntoIterator` for `Line`, `&Line`, and `&mut Line` traits
    - update call sites to iterate over `Line` rather than `Line::spans`
    
  • 5d410c6 (line) Implement Widget for Line (#715)

    This allows us to use Line as a child of other widgets, and to use
    Line::render() to render it rather than calling buffer.set_line().
    
    ```rust
    frame.render_widget(Line::raw("Hello, world!"), area);
    // or
    Line::raw("Hello, world!").render(frame, area);
    ```
    
  • c977293 (line) Add style field, setters and docs (#708) [breaking]

    - The `Line` struct now stores the style of the line rather than each
      `Span` storing it.
    - Adds two new setters for style and spans
    - Adds missing docs
    

    BREAKING CHANGE:Line::style is now a field of Line instead of being stored in each Span.

  • bbf2f90 (rect.rs) Implement Rows and Columns iterators in Rect (#765)

    This enables iterating over rows and columns of a Rect. In tern being able to use that with other iterators and simplify looping over cells.
    
  • fe06f0c (serde) Support TableState, ListState, and ScrollbarState (#723)

    TableState, ListState, and ScrollbarState can now be serialized and deserialized
    using serde.
    
    ```rust
    #[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
    struct AppState {
        list_state: ListState,
        table_state: TableState,
        scrollbar_state: ScrollbarState,
    }
    
    let app_state = AppState::default();
    let serialized = serde_json::to_string(app_state);
    
    let app_state = serde_json::from_str(serialized);
    ```
    
  • 37c1836 (span) Implement Widget on Span (#709)

    This allows us to use Span as a child of other widgets, and to use
    Span::render() to render it rather than calling buffer.set_span().
    
    ```rust
    frame.render_widget(Span::raw("Hello, world!"), area);
    // or
    Span::raw("Hello, world!").render(frame, area);
    // or even
    "Hello, world!".green().render(frame, area);
    ```
    
  • e1e85aa (style) Add material design color palette (#786)

    The `ratatui::style::palette::material` module contains the Google 2014
    Material Design palette.
    
    See https://m2.material.io/design/color/the-color-system.html#tools-for-picking-colors
    for more information.
    
    ```rust
    use ratatui::style::palette::material::BLUE_GRAY;
    Line::styled("Hello", BLUE_GRAY.c500);
    ```
    
  • bf67850 (style) Add tailwind color palette (#787)

    The `ratatui::style::palette::tailwind` module contains the default
    Tailwind color palette. This is useful for styling components with
    colors that match the Tailwind color palette.
    
    See https://tailwindcss.com/docs/customizing-colors for more information
    on Tailwind.
    
    ```rust
    use ratatui::style::palette::tailwind::SLATE;
    Line::styled("Hello", SLATE.c500);
    ```
    
  • 27e9216 (table) Remove allow deprecated attribute used previously for segment_size (#875)

  • a489d85 (table) Deprecate SegmentSize on table (#842)

    This adds for table:
    
    - Added new flex method with flex field
    - Deprecated segment_size method and removed segment_size field
    - Updated documentation
    - Updated tests
    
  • c69ca47 (table) Collect iterator of Row into Table (#774) [breaking]

    Any iterator whose item is convertible into `Row` can now be
    collected into a `Table`.
    
    Where previously, `Table::new` accepted `IntoIterator<Item = Row>`, it
    now accepts `IntoIterator<Item: Into<Row>>`.
    

    BREAKING CHANGE:The compiler can no longer infer the element type of the container passed to Table::new(). For example, Table::new(vec![], widths) will no longer compile, as the type of vec![] can no longer be inferred.

  • 2faa879 (table) Accept Text for highlight_symbol (#781)

    This allows for multi-line symbols to be used as the highlight symbol.
    
    ```rust
    let table = Table::new(rows, widths)
        .highlight_symbol(Text::from(vec![
            "".into(),
            " █ ".into(),
            " █ ".into(),
            "".into(),
        ]));
    ```
    
  • e64e194 (table) Implement FromIterator for widgets::Row (#755)

    The `Row::new` constructor accepts a single argument that implements
    `IntoIterator`.  This commit adds an implementation of `FromIterator`,
    as a thin wrapper around `Row::new`.  This allows `.collect::<Row>()`
    to be used at the end of an iterator chain, rather than wrapping the
    entire iterator chain in `Row::new`.
    
  • 803a72d (table) Accept Into for widths (#745)

    This allows Table constructors to accept any type that implements
    Into<Constraint> instead of just AsRef<Constraint>. This is useful when
    you want to specify a fixed size for a table columns, but don't want to
    explicitly create a Constraint::Length yourself.
    
    ```rust
    Table::new(rows, [1,2,3])
    Table::default().widths([1,2,3])
    ```
    
  • f025d2b (table) Add Table::footer and Row::top_margin methods (#722)

    * feat(table): Add a Table::footer method
    
  • f29c73f (tabs) Accept Iterators of Line in constructors (#776) [breaking]

    Any iterator whose item is convertible into `Line` can now be
    collected into `Tabs`.
    
    In addition, where previously `Tabs::new` required a `Vec`, it can now
    accept any object that implements `IntoIterator` with an item type
    implementing `Into<Line>`.
    

    BREAKING CHANGE:Calls to Tabs::new() whose argument is collected from an iterator will no longer compile. For example,

    Tabs::new(["a","b"].into_iter().collect()) will no longer compile, because the return type of .collect() can no longer be inferred to be a Vec<_>.

  • b459228 (termwiz) Add From termwiz style impls (#726)

    Important note: this also fixes a wrong mapping between ratatui's gray
    and termwiz's grey. `ratatui::Color::Gray` now maps to
    `termwiz::color::AnsiColor::Silver`
    
  • 9ba7354 (text) Implement iterators for Text (#900)

    This allows iterating over the `Lines`s of a text using `for` loops and
    other iterator methods.
    
    - add `iter` and `iter_mut` methods to `Text`
    - implement `IntoIterator` for `Text`, `&Text`, and `&mut Text` traits
    - update call sites to iterate over `Text` rather than `Text::lines`
    
  • 68d5783 (text) Add style and alignment (#807)

    Fixes #758, fixes #801

This PR adds:

  • style and alignment to Text
  • impl Widget for Text
  • replace Text manual draw to call for Widget impl

All places that use Text have been updated and support its new features expect paragraph which still has a custom implementation.

  • 815757f (widgets) Implement Widget for Widget refs (#833)

    Many widgets can be rendered without changing their state.
    
    This commit implements The `Widget` trait for references to
    widgets and changes their implementations to be immutable.
    
    This allows us to render widgets without consuming them by passing a ref
    to the widget when calling `Frame::render_widget()`.
    
    ```rust
    // this might be stored in a struct
    let paragraph = Paragraph::new("Hello world!");
    
    let [left, right] = area.split(&Layout::horizontal([20, 20]));
    frame.render_widget(&paragraph, left);
    frame.render_widget(&paragraph, right); // we can reuse the widget
    ```
    
    Implemented for all widgets except BarChart (which has an implementation
    that modifies the internal state and requires a rewrite to fix.
    
    Other widgets will be implemented in follow up commits.
    

    Fixes:https://github.com/ratatui/ratatui/discussions/164 Replaces PRs: https://github.com/ratatui/ratatui/pull/122 and

    https://github.com/ratatui/ratatui/pull/16

    Enables:https://github.com/ratatui/ratatui/issues/132 Validated as a viable working solution by:

    https://github.com/ratatui/ratatui/pull/836

  • eb79256 (widgets) Collect iterator of ListItem into List (#775)

    Any iterator whose item is convertible into `ListItem` can now be
    collected into a `List`.
    
    ```rust
    let list: List = (0..3).map(|i| format!("Item{i}")).collect();
    ```
    
  • c8dd879 (uncategorized) Add WidgetRef and StatefulWidgetRef traits (#903)

    The Widget trait consumes self, which makes it impossible to use in a
    boxed context. Previously we implemented the Widget trait for &T, but
    this was not enough to render a boxed widget. We now have a new trait
    called `WidgetRef` that allows rendering a widget by reference. This
    trait is useful when you want to store a reference to one or more
    widgets and render them later. Additionally this makes it possible to
    render boxed widgets where the type is not known at compile time (e.g.
    in a composite layout with multiple panes of different types).
    
    This change also adds a new trait called `StatefulWidgetRef` which is
    the stateful equivalent of `WidgetRef`.
    
    Both new traits are gated behind the `unstable-widget-ref` feature flag
    as we may change the exact name / approach a little on this based on
    further discussion.
    
    Blanket implementation of `Widget` for `&W` where `W` implements
    `WidgetRef` and `StatefulWidget` for `&W` where `W` implements
    `StatefulWidgetRef` is provided. This allows you to render a widget by
    reference and a stateful widget by reference.
    
    A blanket implementation of `WidgetRef` for `Option<W>` where `W`
    implements `WidgetRef` is provided. This makes it easier to render
    child widgets that are optional without the boilerplate of unwrapping
    the option. Previously several widgets implemented this manually. This
    commits expands the pattern to apply to all widgets.
    
    ```rust
    struct Parent {
        child: Option<Child>,
    }
    
    impl WidgetRef for Parent {
        fn render_ref(&self, area: Rect, buf: &mut Buffer) {
            self.child.render_ref(area, buf);
        }
    }
    ```
    
    ```rust
    let widgets: Vec<Box<dyn WidgetRef>> = vec![Box::new(Greeting), Box::new(Farewell)];
    for widget in widgets {
        widget.render_ref(buf.area, &mut buf);
    }
    assert_eq!(buf, Buffer::with_lines(["Hello        Goodbye"]));
    ```
    
  • 87bf1dd (uncategorized) Replace Rect::split with Layout::areas and spacers (#904)

    In a recent commit we added Rec::split, but this feels more ergonomic as
    Layout::areas. This also adds Layout::spacers to get the spacers between
    the areas.
    
  • dab08b9 (uncategorized) Show space constrained UIs conditionally (#895)

    With this PR the constraint explorer demo only shows space constrained
    UIs instead:
    
    Smallest (15 row height):
    
    <img width="759" alt="image"
    src="https://github.com/ratatui/ratatui/assets/1813121/37a4a027-6c6d-4feb-8104-d732aee298ac">
    
    Small (20 row height):
    
    <img width="759" alt="image"
    src="https://github.com/ratatui/ratatui/assets/1813121/f76e025f-0061-4f09-9c91-2f7b00fcfb9e">
    
    Medium (30 row height):
    
    <img width="758" alt="image"
    src="https://github.com/ratatui/ratatui/assets/1813121/81b070da-1bfb-40c5-9fbc-c1ab44ce422e">
    
    Full (40 row height):
    
    <img width="760" alt="image"
    src="https://github.com/ratatui/ratatui/assets/1813121/7bb8a8c4-1a77-4bbc-a346-c8b5c198c6d3">
    
  • 2a12f7b (uncategorized) Impl Widget for &BarChart (#897)

    BarChart had some internal mutations that needed to be removed to
    implement the Widget trait for &BarChart to bring it in line with the
    other widgets.
    
  • 9ec43ef (uncategorized) Constraint Explorer example (#893)

    Here's a constraint explorer demo put together with @joshka
    

    https://github.com/ratatui/ratatui/assets/1813121/08d7d8f6-d013-44b4-8331-f4eee3589cce

It allows users to interactive explore how the constraints behave with respect to each other and compare that across flex modes. It allows users to swap constraints out for other constraints, increment or decrement the values, add and remove constraints, and add spacing

It is also a good example for how to structure a simple TUI with several Ratatui code patterns that are useful for refactoring.

Fixes:https://github.com/ratatui/ratatui/issues/792


Now user provided spacing gaps always take priority in all Flex modes.

  • dd5ca3a (uncategorized) Better weights for constraints (#889)

    This PR is a split of reworking the weights from #888
    
    This keeps the same ranking of weights, just uses a different numerical
    value so that the lowest weight is `WEAK` (`1.0`).
    
    No tests are changed as a result of this change, and running the
    following multiple times did not cause any errors for me:
    
    ```rust
    for i in {0..100}
    do
     cargo test --lib --
     if [ $? -ne 0 ]; then
     echo "Test failed. Exiting loop."
     break
     fi
    done
    ```
    
  • aeec163 (uncategorized) Change rounding to make tests stable (#888)

    This fixes some unstable tests
    
  • be4fdaa (uncategorized) Change priority of constraints and add split_with_spacers (#788)

    Follow up to https://github.com/ratatui/ratatui/pull/783
    
    This PR introduces different priorities for each kind of constraint.
    This PR also adds tests that specifies this behavior. This PR resolves a
    number of broken tests.
    
    Fixes https://github.com/ratatui/ratatui/issues/827
    
    With this PR, the layout algorithm will do the following in order:
    
    1. Ensure that all the segments are within the user provided area and
    ensure that all segments and spacers are aligned next to each other
    2. if a user provides a `layout.spacing`, it will enforce it.
    3. ensure proportional elements are all proportional to each other
    4. if a user provides a `Fixed(v)` constraint, it will enforce it.
    5. `Min` / `Max` binding inequality constraints
    6. `Length`
    7. `Percentage`
    8. `Ratio`
    9. collapse `Min` or collapse `Max`
    10. grow `Proportional` as much as possible
    11. grow spacers as much as possible
    
    This PR also returns the spacer areas as `Rects` to the user. Users can
    then draw into the spacers as they see fit (thanks @joshka for the
    idea). Here's a screenshot with the modified flex example:
    
    <img width="569" alt="image"
    src="https://github.com/ratatui/ratatui/assets/1813121/46c8901d-882c-43b0-ba87-b1d455099d8f">
    
    This PR introduces a `strengths` module that has "default" weights that
    give stable solutions as well as predictable behavior.
    
  • d713201 (uncategorized) Add Color::from_hsl (#772)

    This PR adds `Color::from_hsl` that returns a valid `Color::Rgb`.
    
    ```rust
    let color: Color = Color::from_hsl(360.0, 100.0, 100.0);
    assert_eq!(color, Color::Rgb(255, 255, 255));
    
    let color: Color = Color::from_hsl(0.0, 0.0, 0.0);
    assert_eq!(color, Color::Rgb(0, 0, 0));
    ```
    
    HSL stands for Hue (0-360 deg), Saturation (0-100%), and Lightness
    (0-100%) and working with HSL the values can be more intuitive. For
    example, if you want to make a red color more orange, you can change the
    Hue closer toward yellow on the color wheel (i.e. increase the Hue).
    

    Related #763

  • 405a125 (uncategorized) Add wide and tall proportional border set (#848)

    Adds `PROPORTIONAL_WIDE` and `PROPORTIONAL_TALL` border sets.
    

    symbols::border::PROPORTIONAL_WIDE

▄▄▄▄
█xx█
█xx█
▀▀▀▀

symbols::border::PROPORTIONAL_TALL

█▀▀█
█xx█
█xx█
█▄▄█

Fixes:https://github.com/ratatui/ratatui/issues/834

  • 9df6ceb (uncategorized) Table column calculation uses layout spacing (#824)

    This uses the new `spacing` feature of the `Layout` struct to allocate
    columns spacing in the `Table` widget.
    This changes the behavior of the table column layout in the following
    ways:
    
    1. Selection width is always allocated.
    - if a user does not want a selection width ever they should use
    `HighlightSpacing::Never`
    2. Column spacing is prioritized over other constraints
    - if a user does not want column spacing, they should use
    `Table::new(...).column_spacing(0)`
    
    ---------
    
  • f299463 (uncategorized) Add one eighth wide and tall border sets (#831)

    This PR adds the
    [`McGugan`](https://www.willmcgugan.com/blog/tech/post/ceo-just-wants-to-draw-boxes/)
    border set, which allows for tighter borders.
    
    For example, with the `flex` example you can get this effect (top is
    mcgugan wide, bottom is mcgugan tall):
    
    <img width="759" alt="image"
    src="https://github.com/ratatui/ratatui/assets/1813121/756bb50e-f8c3-4eec-abe8-ce358058a526">
    
    <img width="759" alt="image"
    src="https://github.com/ratatui/ratatui/assets/1813121/583485ef-9eb2-4b45-ab88-90bd7cb14c54">
    
    As of this PR, `MCGUGAN_WIDE` has to be styled manually, like so:
    
    ```rust
                let main_color = color_for_constraint(*constraint);
                let cell = buf.get_mut(block.x, block.y + 1);
                cell.set_style(Style::reset().fg(main_color).reversed());
                let cell = buf.get_mut(block.x, block.y + 2);
                cell.set_style(Style::reset().fg(main_color).reversed());
                let cell = buf.get_mut(block.x + block.width.saturating_sub(1), block.y + 1);
                cell.set_style(Style::reset().fg(main_color).reversed());
                let cell = buf.get_mut(block.x + block.width.saturating_sub(1), block.y + 2);
                cell.set_style(Style::reset().fg(main_color).reversed());
    
    ```
    
    `MCGUGAN_TALL` has to be styled manually, like so:
    
    ```rust
                let main_color = color_for_constraint(*constraint);
                for x in block.x + 1..(block.x + block.width).saturating_sub(1) {
                    let cell = buf.get_mut(x, block.y);
                    cell.set_style(Style::reset().fg(main_color).reversed());
                    let cell = buf.get_mut(x, block.y + block.height - 1);
                    cell.set_style(Style::reset().fg(main_color).reversed());
                }
    
    ```
    
  • ae6a2b0 (uncategorized) Add spacing feature to flex example (#830)

    This adds the `spacing` using `+` and `-` to the flex example
    
  • cddf4b2 (uncategorized) Implement Display for Text, Line, Span (#826)

    Issue:https://github.com/ratatui/ratatui/issues/816

This PR adds:

std::fmt::Display for Text, Line, and Span structs.

Display implementation displays actual content while ignoring style.

  • 5131c81 (uncategorized) Add layout spacing (#821)

    This adds a `spacing` feature for layouts.
    
    Spacing can be added between items of a layout.
    
  • de97a1f (uncategorized) Add flex to layout

    This PR adds a new way to space elements in a `Layout`.
    
    Loosely based on
    [flexbox](https://css-tricks.com/snippets/css/a-guide-to-flexbox/), this
    PR adds a `Flex` enum with the following variants:
    
    - Start
    - Center
    - End
    - SpaceAround
    - SpaceBetween
    
    <img width="380" alt="image" src="https://github.com/ratatui/ratatui/assets/1813121/b744518c-eae7-4e35-bbc4-fe3c95193cde">
    
    It also adds two more variants, to make this backward compatible and to
    make it replace `SegmentSize`:
    
    - StretchLast (default in the `Flex` enum, also behavior matches old
      default `SegmentSize::LastTakesRemainder`)
    - Stretch (behavior matches `SegmentSize::EvenDistribution`)
    
    The `Start` variant from above matches `SegmentSize::None`.
    
    This allows `Flex` to be a complete replacement for `SegmentSize`, hence
    this PR also deprecates the `segment_size` constructor on `Layout`.
    `SegmentSize` is still used in `Table` but under the hood `segment_size`
    maps to `Flex` with all tests passing unchanged.
    
    I also put together a simple example for `Flex` layouts so that I could
    test it visually, shared below:
    

    https://github.com/ratatui/ratatui/assets/1813121/c8716c59-493f-4631-add5-feecf4bd4e06

  • 9a3815b (uncategorized) Add Constraint::Fixed and Constraint::Proportional (#783)

  • 425a651 (uncategorized) Add comprehensive tests for Length interacting with other constraints (#802)

  • c50ff08 (uncategorized) Add frame count (#766)

  • 8f56fab (uncategorized) Accept Color and Modifier for all Styles (#720) [breaking]

    * feat: accept Color and Modifier for all Styles
    
    All style related methods now accept `S: Into<Style>` instead of
    `Style`.
    `Color` and `Modifier` implement `Into<Style>` so this is allows for
    more ergonomic usage. E.g.:
    
    ```rust
    Line::styled("hello", Style::new().red());
    Line::styled("world", Style::new().bold());
    
    // can now be simplified to
    

    Line::styled("hello", Color::Red);

    Line::styled("world", Modifier::BOLD);


Fixes https://github.com/ratatui/ratatui/issues/694

  BREAKING CHANGE:All style related methods now accept `S: Into<Style>`
instead of `Style`. This means that if you are already passing an
ambiguous type that implements `Into<Style>` you will need to remove
the `.into()` call.

`Block` style methods can no longer be called from a const context as
trait functions cannot (yet) be const.

* feat: add tuple conversions to Style

Adds conversions for various Color and Modifier combinations

* chore: add unit tests

### Bug Fixes

- [ee54493](https://github.com/ratatui/ratatui/commit/ee544931633ada25d84daa95e4e3a0b17801cb8b)
  *(buffer)* Don't panic in set_style ([#714](https://github.com/ratatui/ratatui/issues/714))

  ````text
  This fixes a panic in set_style when the area to be styled is
  outside the buffer's bounds.
  • c959bd2 (calendar) CalendarEventStore panic (#822)

    CalendarEventStore::today() panics if the system's UTC offset cannot be determined. In this circumstance, it's better to use now_utc instead.

  • 0614190 (cd) Fix grepping the last release (#762)

  • a67815e (chart) Exclude unnamed datasets from legend (#753)

    A dataset with no name won't display an empty line anymore in the legend.
    If no dataset have name, then no legend is ever displayed.
    
  • 3e7810a (example) Increase layout cache size (#815)

    This was causing very bad performances especially on scrolling.
    It's also a good usage demonstration.
    
  • 50b81c9 (examples/scrollbar) Title wasn't displayed because of background reset (#795)

  • b3a57f3 (list) Modify List and List example to support saving offsets. (#667)

    The current `List` example will unselect and reset the position of a
    list.
    
    This PR will save the last selected item, and updates `List` to honor
    its offset, preventing the list from resetting when the user
    `unselect()`s a `StatefulList`.
    
  • 6645d2e (table) Ensure that default and new() match (#751) [breaking]

    In https://github.com/ratatui/ratatui/pull/660 we introduced the
    segment_size field to the Table struct. However, we forgot to update
    the default() implementation to match the new() implementation. This
    meant that the default() implementation picked up SegmentSize::default()
    instead of SegmentSize::None.
    
    Additionally the introduction of Table::default() in an earlier PR,
    https://github.com/ratatui/ratatui/pull/339, was also missing the
    default for the column_spacing field (1).
    
    This commit fixes the default() implementation to match the new()
    implementation of these two fields by implementing the Default trait
    manually.
    

    BREAKING CHANGE:The default() implementation of Table now sets the column_spacing field to 1 and the segment_size field to

    SegmentSize::None. This will affect the rendering of a small amount of apps.

  • b0ed658 (table) Render missing widths as equal (#710)

    Previously, if `.widths` was not called before rendering a `Table`, no
    content would render in the area of the table. This commit changes that
    behaviour to default to equal widths for each column.
    

    Fixes #510.

  • f71bf18 (uncategorized) Bug with flex stretch with spacing and proportional constraints (#829)

    This PR fixes a bug with layouts when using spacing on proportional
    constraints.
    
  • cc6737b (uncategorized) Make SpaceBetween with one element Stretch 🐛 (#813)

    When there's just one element, `SpaceBetween` should do the same thing
    as `Stretch`.
    
  • 7a8af8d (uncategorized) Update templates links (#808)

  • f2eab71 (uncategorized) Broken tests in table.rs (#784)

    * fix: broken tests in table.rs
    
    * fix: Use default instead of raw
    
  • 8dd177a (uncategorized) Fix PR write permission to upload unsigned commit comment (#770)

Refactor

  • cf86123 (scrollbar) Rewrite scrollbar implementation (#847)

    Implementation was simplified and calculates the size of the thumb a
    bit more proportionally to the content that is visible.
    
  • fd4703c (block) Move padding and title into separate files (#837)

  • bc274e2 (block) Remove deprecated title_on_bottom (#757) [breaking]

    Block::title_on_bottom was deprecated in v0.22. Use Block::title and Title::position instead.

  • a62632a (buffer) Split buffer module into files (#721)

  • e0aa6c5 (chart) Replace deprecated apply (#812)

    Fixes #793

  • 7f42ec9 (colors_rgb) Impl widget on mutable refs (#865)

    This commit refactors the colors_rgb example to implement the Widget
    trait on mutable references to the app and its sub-widgets. This allows
    the app to update its state while it is being rendered.
    
    Additionally the main and run functions are refactored to be similar to
    the other recent examples. This uses a pattern where the App struct has
    a `run` method that takes a terminal as an argument, and the main
    function is in control of initializing and restoring the terminal and
    installing the error hooks.
    
  • 813f707 (example) Improve constraints and flex examples (#817)

    This PR is a follow up to
    https://github.com/ratatui/ratatui/pull/811.
    
    It improves the UI of the layouts by
    
    - thoughtful accessible color that represent priority in constraints
    resolving
    - using QUADRANT_OUTSIDE symbol set for block rendering
    - adding a scrollbar
    - panic handling
    - refactoring for readability
    
    to name a few. Here are some example gifs of the outcome:
    
    
    ![constraints](https://github.com/ratatui/ratatui/assets/381361/8eed34cf-e959-472f-961b-d439bfe3324e)
    
    
    ![flex](https://github.com/ratatui/ratatui/assets/381361/3195a56c-9cb6-4525-bc1c-b969c0d6a812)
    
    ---------
    
  • bb5444f (example) Add scroll to flex example (#811)

    This commit adds `scroll` to the flex example. It also adds more examples to showcase how constraints interact. It improves the UI to make it easier to understand and short terminal friendly.
    
    <img width="380" alt="image" src="https://github.com/ratatui/ratatui/assets/1813121/30541efc-ecbe-4e28-b4ef-4d5f1dc63fec"/>
    
    ---------
    
  • 6d15b25 (layout) Move the remaining types (#743)

    - alignment -> layout/alignment.rs
    - corner -> layout/corner.rs
    - direction -> layout/direction.rs
    - size -> layout/size.rs
    
  • 659460e (layout) Move SegmentSize to layout/segment_size.rs (#742)

  • ba036cd (layout) Move Layout to layout/layout.rs (#741)

  • 8724aeb (layout) Move Margin to margin.rs (#740)

  • 9574198 (line) Reorder methods for natural reading order (#713)

  • 6364533 (table) Split table into multiple files (#718)

    At close to 2000 lines of code, the table widget was getting a bit
    unwieldy. This commit splits it into multiple files, one for each
    struct, and one for the table itself.
    
    Also refactors the table rendering code to be easier to maintain.
    
  • 5aba988 (terminal) Extract types to files (#760)

    Fields on Frame that were private are now pub(crate).
    
  • 4d262d2 (widget) Move borders to widgets/borders.rs (#832)

  • 5254795 (uncategorized) Make layout tests a bit easier to understand (#890)

  • bd6b91c (uncategorized) Make patch_style & reset_style chainable (#754) [breaking]

    Previously, `patch_style` and `reset_style` in `Text`, `Line` and `Span`
     were using a mutable reference to `Self`. To be more consistent with
     the rest of `ratatui`, which is using fluent setters, these now take
     ownership of `Self` and return it.
    
  • da6c299 (uncategorized) Extract layout::Constraint to file (#739)

Documentation

  • 6ecaeed (text) Add overview of the relevant methods (#857)

    Add an overview of the relevant methods under `Constructor Methods`, `Setter Methods`, and `Other Methods` subtitles.
    
  • 50374b2 (backend) Fix broken book link (#733)

  • e1cc849 (breaking) Fix typo (#702)

  • 49df5d4 (example) Fix markdown syntax for note (#730)

  • 4b8e54e (examples) Refactor Tabs example (#861)

    - Used a few new techniques from the 0.26 features (ref widgets, text rendering,
      dividers / padding etc.)
    - Updated the app to a simpler application approach
    - Use color_eyre
    - Make it look pretty (colors, new proportional borders)
    
    ![Made with VHS](https://vhs.charm.sh/vhs-4WW21XTtepDhUSq4ZShO56.gif)
    
    ---------
    Fixes https://github.com/ratatui/ratatui/issues/819
    Co-authored-by: Josh McKinney <joshka@users.noreply.github.com>
    
  • 5b7ad2a (examples) Update gauge example (#863)

    - colored gauges
    - removed box borders
    - show the difference between ratio / percentage and unicode / no unicode better
    - better application approach (consistent with newer examples)
    - various changes for 0.26 featuers
    - impl `Widget` for `&App`
    - use color_eyre
    
    for gauge.tape
    
    - change to get better output from the new code
    
    ---------
    Fixes: https://github.com/ratatui/ratatui/issues/846
    Co-authored-by: Josh McKinney <joshka@users.noreply.github.com>
    
  • f383625 (examples) Add note about example versions to all examples (#871)

  • 847bacf (examples) Refactor demo2 (#836)

    Simplified a bunch of the logic in the demo2 example
    - Moved destroy mode to its own file.
    - Moved error handling to its own file.
    - Removed AppContext
    - Implemented Widget for &App. The app state is small enough that it
      doesn't matter here and we could just copy or clone the app state on
      every frame, but for larger apps this can be a significant performance
      improvement.
    - Made the tabs stateful
    - Made the term module just a collection of functions rather than a
      struct.
    - Changed to use color_eyre for error handling.
    - Changed keyboard shortcuts and rearranged the bottom bar.
    - Use strum for the tabs enum.
    
  • 804c841 (examples) Update list example and list.tape (#864)

    This PR adds:
    
    - subjectively better-looking list example
    - change list example to a todo list example
    - status of a TODO can be changed, further info can be seen under the list.
    
  • eb1484b (examples) Update tabs example and tabs.tape (#855)

    This PR adds:
    
    for tabs.rs
    
    - general refactoring on code
    - subjectively better looking front
    - add tailwind colors
    
    for tabs.tape
    
    - change to get better output from the new code
    
    Here is the new output:
    
    ![tabs](https://github.com/ratatui/ratatui/assets/30180366/0a9371a5-e90d-42ba-aba5-70cbf66afd1f)
    
  • 330a899 (examples) Update table example and table.tape (#840)

    In table.rs
    - added scrollbar to the table
    - colors changed to use style::palette::tailwind
    - now colors can be changed with keys (l or →) for the next color, (h or
    ←) for the previous color
    - added a footer for key info
    
    For table.tape
    - typing speed changed to 0.75s from 0.5s
    - screen size changed to fit
    - pushed keys changed to show the current example better
    

    Fixes:https://github.com/ratatui/ratatui/issues/800

  • 41de884 (examples) Document incompatible examples better (#844)

    Examples often take advantage of unreleased API changes, which makes
    them not copy-paste friendly.
    
  • 3464894 (examples) Add warning about examples matching the main branch (#778)

  • fb93db0 (examples) Simplify docs using new layout methods (#731)

    Use the new `Layout::horizontal` and `vertical` constructors and
    `Rect::split_array` through all the examples.
    
  • d6b8513 (examples) Refactor chart example to showcase scatter (#703)

  • fe84141 (layout) Document the difference in the split methods (#750)

    * docs(layout): document the difference in the split methods
    
    * fix: doc suggestion
    
  • 48b0380 (scrollbar) Complete scrollbar documentation (#823)

  • e67d3c6 (table) Fix typo (#707)

  • 065b6b0 (terminal) Document buffer diffing better (#852)

  • 86168aa (uncategorized) Fix docstring for Max constraints (#898)

  • 11e4f6a (uncategorized) Adds better documentation for constraints and flex 📚 (#818)

  • 1746a61 (uncategorized) Update links to templates repository 📚 (#810)

    This PR updates links to the `templates` repository.
    
  • 43b2b57 (uncategorized) Fix typo in Table widget description (#797)

  • 2b4aa46 (uncategorized) GitHub admonition syntax for examples README.md (#791)

    * docs: GitHub admonition syntax for examples README.md
    
    * docs: Add link to stable release
    
  • 388aa46 (uncategorized) Update crate, lib and readme links (#771)

    Link to the contributing, changelog, and breaking changes docs at the
    top of the page instead of just in in the main part of the doc. This
    makes it easier to find them.
    
    Rearrange the links to be in a more logical order.
    
    Use link refs for all the links
    
    Fix up the CI link to point to the right workflow
    

Performance

  • 1d3fbc1 (buffer) Apply SSO technique to text buffer in buffer::Cell (#601) [breaking]

    Use CompactString instead of String to store the Cell::symbol field.
    This saves reduces the size of memory allocations at runtime.
    

Testing

  • 663bbde (layout) Convert layout tests to use rstest (#879)

    This PR makes all the letters test use `rstest`
    
  • f780be3 (layout) Parameterized tests 🚨 (#858)

Miscellaneous Tasks

  • ba20372 (contributing) Remove part about squashing commits (#874)

    Removes the part about squashing commits from the CONTRIBUTING file.
    
    We no longer require that because github squashes commits when merging.
    This will cleanup the CONTRIBUTING file a bit which is already quite
    dense.
    
  • d49bbb2 (ci) Update the job description for installing cargo-nextest (#839)

  • 8d77b73 (ci) Use cargo-nextest for running tests (#717)

    * chore(ci): use cargo-nextest for running tests
    
    * refactor(make): run library tests before doc tests
    
  • b7a4793 (ci) Bump alpha release for breaking changes (#495)

    Automatically detect breaking changes based on commit messages
    and bump the alpha release number accordingly.
    
    E.g. v0.23.1-alpha.1 will be bumped to v0.24.0-alpha.0 if any commit
    since v0.23.0 has a breaking change.
    
  • fab943b (contributing) Add deprecation notice guideline (#761)

  • fc0879f (layout) Comment tests that may fail on occasion (#814)

    These fails seem to fail on occasion, locally and on CI.
    
    This issue will be revisited in the PR on constraint weights:
    https://github.com/ratatui/ratatui/pull/788
    
  • f8367fd (uncategorized) Allow Buffer::with_lines to accept IntoIterator (#901)

    This can make it easier to use `Buffer::with_lines` with iterators that
    don't necessarily produce a `Vec`. For example, this allows using
    `Buffer::with_lines` with `&[&str]` directly, without having to call
    `collect` on it first.
    
  • 78f1c14 (uncategorized) Small fixes to constraint-explorer (#894)

  • 984afd5 (uncategorized) Cache dependencies in the CI workflow to speed up builds (#883)

  • 6e76729 (uncategorized) Move example vhs tapes to a folder (#867)

  • 151db6a (uncategorized) Add commit footers to git-cliff config (#805)

    Fixes:https://github.com/orhun/git-cliff/issues/297

  • c24216c (uncategorized) Add comment on PRs with unsigned commits (#768)

Contributors

Thank you so much to everyone that contributed to this release!

Here is the list of contributors who have contributed to ratatui for the first time!

  • @yanganto
  • @akiomik
  • @Lunderberg
  • @BogdanPaul15
  • @stchris
  • @MultisampledNight
  • @lxl66566
  • @bblsh
  • @Eeelco

Sponsors

Shout out to our new sponsors!

  • @pythops
  • @DanNixon
  • @ymgyt
  • @plabayo
  • @atuinsh
  • @JeftavanderHorst!

0.25.0 - 2023-12-18

We are thrilled to announce the new version of ratatui - a Rust library that's all about cooking up TUIs 🐭

In this version, we made improvements on widgets such as List, Table and Layout and changed some of the defaults for a better user experience. Also, we renewed our website and updated our documentation/tutorials to get started with ratatui: https://ratatui.rs 🚀

Release highlights: https://ratatui.rs/highlights/v025/

⚠️ List of breaking changes can be found here.

💖 We also enabled GitHub Sponsors for our organization, consider sponsoring us if you like ratatui: https://github.com/sponsors/ratatui

Features

  • aef4956 (list) List::new now accepts IntoIterator<Item = Into<ListItem>> (#672) [breaking]

    This allows to build list like
    
    ```
    List::new(["Item 1", "Item 2"])
    ```
    
  • 8bfd666 (paragraph) Add line_count and line_width unstable helper methods

    This is an unstable feature that may be removed in the future
    
  • 1229b96 (rect) Add offset method (#533)

    The offset method creates a new Rect that is moved by the amount
    specified in the x and y direction. These values can be positive or
    negative. This is useful for manual layout tasks.
    
    ```rust
    let rect = area.offset(Offset { x: 10, y -10 });
    ```
    
  • edacaf7 (buffer) Deprecate Cell::symbol field (#624)

    The Cell::symbol field is now accessible via a getter method (`symbol()`). This will
    allow us to make future changes to the Cell internals such as replacing `String` with
    `compact_str`.
    
  • 6b2efd0 (layout) Accept IntoIterator for constraints (#663)

    Layout and Table now accept IntoIterator for constraints with an Item
    that is AsRef<Constraint>. This allows pretty much any collection of
    constraints to be passed to the layout functions including arrays,
    vectors, slices, and iterators (without having to call collect() on
    them).
    
  • 753e246 (layout) Allow configuring layout fill (#633)

    The layout split will generally fill the remaining area when `split()`
    is called. This change allows the caller to configure how any extra
    space is allocated to the `Rect`s. This is useful for cases where the
    caller wants to have a fixed size for one of the `Rect`s, and have the
    other `Rect`s fill the remaining space.
    
    For now, the method and enum are marked as unstable because the exact
    name is still being bikeshedded. To enable this functionality, add the
    `unstable-segment-size` feature flag in your `Cargo.toml`.
    
    To configure the layout to fill the remaining space evenly, use
    `Layout::segment_size(SegmentSize::EvenDistribution)`. The default
    behavior is `SegmentSize::LastTakesRemainder`, which gives the last
    segment the remaining space. `SegmentSize::None` will disable this
    behavior. See the docs for `Layout::segment_size()` and
    `layout::SegmentSize` for more information.
    
    Fixes https://github.com/ratatui/ratatui/issues/536
    
  • 1e2f0be (layout) Add parameters to Layout::new() (#557) [breaking]

    Adds a convenience function to create a layout with a direction and a
    list of constraints which are the most common parameters that would be
    generally configured using the builder pattern. The constraints can be
    passed in as any iterator of constraints.
    
    ```rust
    let layout = Layout::new(Direction::Horizontal, [
        Constraint::Percentage(50),
        Constraint::Percentage(50),
    ]);
    ```
    
  • c862aa5 (list) Support line alignment (#599)

    The `List` widget now respects the alignment of `Line`s and renders them as expected.
    
  • 4424637 (span) Add setters for content and style (#647)

  • ebf1f42 (style) Implement From trait for crossterm to Style related structs (#686)

  • e49385b (table) Add a Table::segment_size method (#660)

    It controls how to distribute extra space to an underconstrained table.
    The default, legacy behavior is to leave the extra space unused.  The
    new options are LastTakesRemainder which gets all space to the rightmost
    column that can used it, and EvenDistribution which divides it amongst
    all columns.
    
  • b8f71c0 (widgets/chart) Add option to set the position of legend (#378)

  • 5bf4f52 (uncategorized) Implement From trait for termion to Style related structs (#692)

    * feat(termion): implement from termion color
    
    * feat(termion): implement from termion style
    
    * feat(termion): implement from termion `Bg` and `Fg`
    
  • d19b266 (uncategorized) Add Constraint helpers (e.g. from_lengths) (#641)

    Adds helper methods that convert from iterators of u16 values to the
    specific Constraint type. This makes it easy to create constraints like:
    
    ```rust
    // a fixed layout
    let constraints = Constraint::from_lengths([10, 20, 10]);
    
    // a centered layout
    let constraints = Constraint::from_ratios([(1, 4), (1, 2), (1, 4)]);
    let constraints = Constraint::from_percentages([25, 50, 25]);
    
    // a centered layout with a minimum size
    let constraints = Constraint::from_mins([0, 100, 0]);
    
    // a sidebar / main layout with maximum sizes
    let constraints = Constraint::from_maxes([30, 200]);
    ```
    

Bug Fixes

  • f69d57c (rect) Fix underflow in the Rect::intersection method (#678)

  • 56fc410 (block) Make inner aware of title positions (#657)

    Previously, when computing the inner rendering area of a block, all
    titles were assumed to be positioned at the top, which caused the
    height of the inner area to be miscalculated.
    
  • ec7b387 (doc) Do not access deprecated Cell::symbol field in doc example (#626)

  • 37c70db (table) Add widths parameter to new() (#664) [breaking]

    This prevents creating a table that doesn't actually render anything.
    
  • 1f88da7 (table) Fix new clippy lint which triggers on table widths tests (#630)

    * fix(table): new clippy lint in 1.74.0 triggers on table widths tests
    
  • 36d8c53 (table) Widths() now accepts AsRef<[Constraint]> (#628)

    This allows passing an array, slice or Vec of constraints, which is more
    ergonomic than requiring this to always be a slice.
    
    The following calls now all succeed:
    
    ```rust
    Table::new(rows).widths([Constraint::Length(5), Constraint::Length(5)]);
    Table::new(rows).widths(&[Constraint::Length(5), Constraint::Length(5)]);
    
    // widths could also be computed at runtime
    let widths = vec![Constraint::Length(5), Constraint::Length(5)];
    Table::new(rows).widths(widths.clone());
    Table::new(rows).widths(&widths);
    ```
    
  • 34d099c (tabs) Fixup tests broken by semantic merge conflict (#665)

    Two changes without any line overlap caused the tabs tests to break
    
  • e4579f0 (tabs) Set the default highlight_style (#635) [breaking]

    Previously the default highlight_style was set to `Style::default()`,
    which meant that the highlight style was the same as the normal style.
    This change sets the default highlight_style to reversed text.
    
  • 28ac55b (tabs) Tab widget now supports custom padding (#629)

    The Tab widget now contains padding_left and and padding_right
    properties. Those values can be set with functions `padding_left()`,
    `padding_right()`, and `padding()` which all accept `Into<Line>`.
    
    Fixes issue https://github.com/ratatui/ratatui/issues/502
    
  • df0eb1f (terminal) Insert_before() now accepts lines > terminal height and doesn't add an extra blank line (#596)

    Fixes issue with inserting content with height>viewport_area.height and adds
    the ability to insert content of height>terminal_height
    
    - Adds TestBackend::append_lines() and TestBackend::clear_region() methods to
      support testing the changes
    
  • aaeba27 (uncategorized) Truncate table when overflow (#685)

    This prevents a panic when rendering an empty right aligned and rightmost table cell
    
  • ffa78aa (uncategorized) Add #[must_use] to Style-moving methods (#600)

  • a2f2bd5 (uncategorized) MSRV is now 1.70.0 (#593)

Refactor

  • f767ea7 (list) start_corner is now direction (#673)

    The previous name `start_corner` did not communicate clearly the intent of the method.
    A new method `direction` and a new enum `ListDirection` were added.
    
    `start_corner` is now deprecated
    
  • b82451f (examples) Add vim binding (#688)

  • 0576a8a (layout) To natural reading order (#681)

    Structs and enums at the top of the file helps show the interaction
    between the types without having to find each type in between longer
    impl sections.
    
    Also moved the try_split function into the Layout impl as an associated
    function and inlined the `layout::split()` which just called try_split.
    This makes the code a bit more contained.
    
  • 4be18ab (readme) Reference awesome-ratatui instead of wiki (#689)

    * refactor(readme): link awesome-ratatui instead of wiki
    
    The apps wiki moved to awesome-ratatui
    
    * docs(readme): Update README.md
    
  • 7ef0afc (widgets) Remove unnecessary dynamic dispatch and heap allocation (#597)

  • b282a06 (uncategorized) Remove items deprecated since 0.10 (#691) [breaking]

    Remove `Axis::title_style` and `Buffer::set_background` which are deprecated since 0.10
    
  • 7ced7c0 (uncategorized) Define struct WrappedLine instead of anonymous tuple (#608)

    It makes the type easier to document, and more obvious for users
    

Documentation

  • fe632d7 (sparkline) Add documentation (#648)

  • f4c8de0 (chart) Document chart module (#696)

  • 1b8b626 (examples) Add animation and FPS counter to colors_rgb (#583)

  • 2169a0d (examples) Add example of half block rendering (#687)

    This is a fun example of how to render big text using half blocks
    
  • 41c44a4 (frame) Add docs about resize events (#697)

  • 91c67eb (github) Update code owners (#666)

    onboard @Valentin271 as maintainer
    
  • 458fa90 (lib) Tweak the crate documentation (#659)

  • 3ec4e24 (list) Add documentation to the List widget (#669)

    Adds documentation to the List widget and all its sub components like `ListState` and `ListItem`
    
  • 9f37100 (readme) Update README.md and fix the bug that demo2 cannot run (#595)

    Fixes https://github.com/ratatui/ratatui/issues/594
    
  • 2a87251 (security) Add security policy (#676)

    * docs: Create SECURITY.md
    
    * Update SECURITY.md
    
  • 987f7ee (website) Rename book to website (#661)

  • a15c3b2 (uncategorized) Remove deprecated table constructor from breaking changes (#698)

  • 113b4b7 (uncategorized) Rename template links to remove ratatui from name 📚 (#690)

  • 211160c (uncategorized) Remove simple-tui-rs (#651)

    This has not been recently and doesn't lead to good code
    

Styling

Miscellaneous Tasks

  • 910ad00 (rustfmt) Enable format_code_in_doc_comments (#695)

    This enables more consistently formatted code in doc comments,
    especially since ratatui heavily uses fluent setters.
    
    See https://rust-lang.github.io/rustfmt/?version=v1.6.0#format_code_in_doc_comments
    
  • d118565 (table) Cleanup docs and builder methods (#638)

    - Refactor the `table` module for better top to bottom readability by
    putting types first and arranging them in a logical order (Table, Row,
    Cell, other).
    
    - Adds new methods for:
      - `Table::rows`
      - `Row::cells`
      - `Cell::new`
      - `Cell::content`
      - `TableState::new`
      - `TableState::selected_mut`
    
    - Makes `HighlightSpacing::should_add` pub(crate) since it's an internal
      detail.
    
    - Adds tests for all the new methods and simple property tests for all
      the other setter methods.
    
  • dd22e72 (uncategorized) Correct "builder methods" in docs and add must_use on widgets setters (#655)

  • 18e19f6 (uncategorized) Fix breaking changes doc versions (#639)

    Moves the layout::new change to unreleasedd section and adds the table change
    
  • a58cce2 (uncategorized) Disable default benchmarking (#598)

    Disables the default benchmarking behaviour for the lib target to fix unrecognized
    criterion benchmark arguments.
    
    See https://bheisler.github.io/criterion.rs/book/faq.html#cargo-bench-gives-unrecognized-option-errors-for-valid-command-line-options for details
    

Continuous Integration

  • 59b9c32 (codecov) Adjust threshold and noise settings (#615)

    Fixes https://github.com/ratatui/ratatui/issues/612
    
  • 03401cd (uncategorized) Fix untrusted input in pr check workflow (#680)

Contributors

Thank you so much to everyone that contributed to this release!

Here is the list of contributors who have contributed to ratatui for the first time!

  • @rikonaka
  • @danny-burrows
  • @SOF3
  • @jan-ferdinand
  • @rhaskia
  • @asomers
  • @progval
  • @TylerBloom
  • @YeungKC
  • @lyuha

0.24.0 - 2023-10-23

We are excited to announce the new version of ratatui - a Rust library that's all about cooking up TUIs 🐭

In this version, we've introduced features like window size API, enhanced chart rendering, and more. The list of *breaking changes* can be found here ⚠️. Also, we created various tutorials and walkthroughs in Ratatui Book which is available at https://ratatui.rs 🚀

Release highlights: https://ratatui.rs/highlights/v024

Features

  • c6c3f88 (backend) Implement common traits for WindowSize (#586)

  • d077903 (backend) Backend provides window_size, add Size struct (#276)

    For image (sixel, iTerm2, Kitty...) support that handles graphics in
    terms of `Rect` so that the image area can be included in layouts.
    
    For example: an image is loaded with a known pixel-size, and drawn, but
    the image protocol has no mechanism of knowing the actual cell/character
    area that been drawn on. It is then impossible to skip overdrawing the
    area.
    
    Returning the window size in pixel-width / pixel-height, together with
    columns / rows, it can be possible to account the pixel size of each cell
    / character, and then known the `Rect` of a given image, and also resize
    the image so that it fits exactly in a `Rect`.
    
    Crossterm and termwiz also both return both sizes from one syscall,
    while termion does two.
    
    Add a `Size` struct for the cases where a `Rect`'s `x`/`y` is unused
    (always zero).
    
    `Size` is not "clipped" for `area < u16::max_value()` like `Rect`. This
    is why there are `From` implementations between the two.
    
  • 301366c (barchart) Render charts smaller than 3 lines (#532)

    The bar values are not shown if the value width is equal the bar width
    and the bar is height is less than one line
    
    Add an internal structure `LabelInfo` which stores the reserved height
    for the labels (0, 1 or 2) and also whether the labels will be shown.
    
    Fixes ratatui#513
    
  • 32e4619 (block) Allow custom symbols for borders (#529) [breaking]

    Adds a new `Block::border_set` method that allows the user to specify
    the symbols used for the border.
    
    Added two new border types: `BorderType::QuadrantOutside` and
    `BorderType::QuadrantInside`. These are used to draw borders using the
    unicode quadrant characters (which look like half block "pixels").
    
    ```
    ▛▀▀▜
    ▌  ▐
    ▙▄▄▟
    
    ▗▄▄▖
    ▐  ▌
    ▝▀▀▘
    ```
    Fixes: https://github.com/ratatui/ratatui/issues/528
    
    BREAKING CHANGES:
    - BorderType::to_line_set is renamed to to_border_set
    - BorderType::line_symbols is renamed to border_symbols
    
  • 4541336 (canvas) Implement half block marker (#550)

    * feat(canvas): implement half block marker
    
    A useful technique for the terminal is to use half blocks to draw a grid
    of "pixels" on the screen. Because we can set two colors per cell, and
    because terminal cells are about twice as tall as they are wide, we can
    draw a grid of half blocks that looks like a grid of square pixels.
    
    This commit adds a new `HalfBlock` marker that can be used in the Canvas
    widget and the associated HalfBlockGrid.
    
    Also updated demo2 to use the new marker as it looks much nicer.
    
    Adds docs for many of the methods and structs on canvas.
    
    Changes the grid resolution method to return the pixel count
    rather than the index of the last pixel.
    This is an internal detail with no user impact.
    
  • be55a5f (examples) Add demo2 example (#500)

  • 082cbcb (frame) Remove generic Backend parameter (#530) [breaking]

    This change simplifies UI code that uses the Frame type. E.g.:
    
    ```rust
    fn draw<B: Backend>(frame: &mut Frame<B>) {
        // ...
    }
    ```
    
    Frame was generic over Backend because it stored a reference to the
    terminal in the field. Instead it now directly stores the viewport area
    and current buffer. These are provided at creation time and are valid
    for the duration of the frame.
    
    BREAKING CHANGE: Frame is no longer generic over Backend. Code that
    accepted a Frame<Backend> will now need to accept a Frame.
    
  • d67fa2c (line) Add Line::raw constructor (#511)

    * feat(line): add `Line::raw` constructor
    
    There is already `Span::raw` and `Text::raw` methods
    and this commit simply adds `Line::raw` method for symmetry.
    
    Multi-line content is converted to multiple spans with the new line removed
    
  • cbf86da (rect) Add is_empty() to simplify some common checks (#534)

    - add `Rect::is_empty()` that checks whether either height or width == 0
    - refactored `Rect` into layout/rect.rs from layout.rs. No public API change as
       the module is private and the type is re-exported under the `layout` module.
    
  • 15641c8 (uncategorized) Add buffer_mut method on Frame (#548)

Bug Fixes

  • 638d596 (layout) Use LruCache for layout cache (#487)

    The layout cache now uses a LruCache with default size set to 16 entries.
    Previously the cache was backed by a HashMap, and was able to grow
    without bounds as a new entry was added for every new combination of
    layout parameters.
    
    - Added a new method (`layout::init_cache(usize)`) that allows the cache
    size to be changed if necessary. This will only have an effect if it is called
    prior to any calls to `layout::split()` as the cache is wrapped in a `OnceLock`
    
  • 8d507c4 (backend) Add feature flag for underline-color (#570)

    Windows 7 doesn't support the underline color attribute, so we need to
    make it optional. This commit adds a feature flag for the underline
    color attribute - it is enabled by default, but can be disabled by
    passing `--no-default-features` to cargo.
    
    We could specically check for Windows 7 and disable the feature flag
    automatically, but I think it's better for this check to be done by the
    crossterm crate, since it's the one that actually knows about the
    underlying terminal.
    
    To disable the feature flag in an application that supports Windows 7,
    add the following to your Cargo.toml:
    
    ```toml
    ratatui = { version = "0.24.0", default-features = false, features = ["crossterm"] }
    ```
    
    Fixes https://github.com/ratatui/ratatui/issues/555
    
  • c3155a2 (barchart) Add horizontal labels(#518)

    Labels were missed in the initial implementation of the horizontal
    mode for the BarChart widget. This adds them.
    
    Fixes https://github.com/ratatui/ratatui/issues/499
    
  • c5ea656 (barchart) Avoid divide by zero in rendering (#525)

  • c9b8e7c (barchart) Render value labels with unicode correctly (#515)

    An earlier change introduced a bug where the width of value labels with
    unicode characters was incorrectly using the string length in bytes
    instead of the unicode character count. This reverts the earlier change.
    
  • c8ab2d5 (chart) Use graph style for top line (#462)

    A bug in the rendering caused the top line of the chart to be rendered
    using the style of the chart, instead of the dataset style. This is
    fixed by only setting the style for the width of the text, and not the
    entire row.
    
  • 0c7d547 (docs) Don't fail rustdoc due to termion (#503)

    Windows cannot compile termion, so it is not included in the docs.
    Rustdoc will fail if it cannot find a link, so the docs fail to build
    on windows.
    
    This replaces the link to TermionBackend with one that does not fail
    during checks.
    
    Fixes https://github.com/ratatui/ratatui/issues/498
    
  • 0c52ff4 (gauge) Fix gauge widget colors (#572)

    The background colors of the gauge had a workaround for the issue we had
    with VHS / TTYD rendering the background color of the gauge. This
    workaround is no longer necessary in the updated versions of VHS / TTYD.
    
    Fixes https://github.com/ratatui/ratatui/issues/501
    
  • 11076d0 (rect) Fix arithmetic overflow edge cases (#543)

    Fixes https://github.com/ratatui/ratatui/issues/258
    
  • 21303f2 (rect) Prevent overflow in inner() and area() (#523)

  • ebd3680 (stylize) Add Stylize impl for String (#466) [breaking]

    Although the `Stylize` trait is already implemented for `&str` which
    extends to `String`, it is not implemented for `String` itself. This
    commit adds an impl of Stylize that returns a Span<'static> for `String`
    so that code can call Stylize methods on temporary `String`s.
    
    E.g. the following now compiles instead of failing with a compile error
    about referencing a temporary value:
    
        let s = format!("hello {name}!", "world").red();
    
    BREAKING CHANGE: This may break some code that expects to call Stylize
    methods on `String` values and then use the String value later. This
    will now fail to compile because the String is consumed by set_style
    instead of a slice being created and consumed.
    
    This can be fixed by cloning the `String`. E.g.:
    
        let s = String::from("hello world");
        let line = Line::from(vec![s.red(), s.green()]); // fails to compile
        let line = Line::from(vec![s.clone().red(), s.green()]); // works
    
    Fixes https://discord.com/channels/1070692720437383208/1072907135664529508/1148229700821450833
    

Refactor

  • 2fd85af (barchart) Simplify internal implementation (#544)

    Replace `remove_invisible_groups_and_bars` with `group_ticks`
    `group_ticks` calculates the visible bar length in ticks. (A cell contains 8 ticks).
    
    It is used for 2 purposes:
    1. to get the bar length in ticks for rendering
    2. since it delivers only the values of the visible bars, If we zip these values
       with the groups and bars, then we will filter out the invisible groups and bars
    

Documentation

  • 0c68ebe (block) Add documentation to Block (#469)

  • 0fe7385 (gauge) Add docs for Gauge and LineGauge (#514)

  • 27c5637 (readme) Fix links to CONTRIBUTING.md and BREAKING-CHANGES.md (#577)

  • 1947c58 (backend) Improve backend module docs (#489)

  • e098731 (barchart) Add documentation to BarChart (#449)

    Add documentation to the `BarChart` widgets and its sub-modules.
    
  • 17797d8 (canvas) Add support note for Braille marker (#472)

  • 3cf0b83 (color) Document true color support (#477)

    * refactor(style): move Color to separate color mod
    
    * docs(color): document true color support
    
  • e5caf17 (custom_widget) Make button sticky when clicking with mouse (#561)

  • ad2dc56 (examples) Update examples readme (#576)

    remove VHS bug info, tweak colors_rgb image, update some of the instructions. add demo2
    
  • b61f65b (examples) Update theme to Aardvark Blue (#574)

    This is a nicer theme that makes the colors pop
    
  • 61af0d9 (examples) Make custom widget example into a button (#539)

    The widget also now supports mouse
    
  • 6b8725f (examples) Add colors_rgb example (#476)

  • 5c785b2 (examples) Move example gifs to github (#460)

    - A new orphan branch named "images" is created to store the example
      images
    
  • ca9bcd3 (examples) Add descriptions and update theme (#460)

    - Use the OceanicMaterial consistently in examples
    
  • 080a05b (paragraph) Add docs for alignment fn (#467)

  • 1e20475 (stylize) Improve docs for style shorthands (#491)

    The Stylize trait was introduced in 0.22 to make styling less verbose.
    This adds a bunch of documentation comments to the style module and
    types to make this easier to discover.
    
  • dd9a8df (table) Add documentation for block and header methods of the Table widget (#505)

  • 232be80 (table) Add documentation for Table::new() (#471)

  • 3bda372 (tabs) Add documentation to Tabs (#535)

  • 42f8169 (terminal) Add docs for terminal module (#486)

    - moves the impl Terminal block up to be closer to the type definition
    
  • 28e7fd4 (terminal) Fix doc comment (#452)

  • 51fdcbe (title) Add documentation to title (#443)

    This adds documentation for Title and Position
    
  • d4976d4 (widgets) Update the list of available widgets (#496)

  • 6c7bef8 (uncategorized) Replace colons with dashes in README.md for consistency (#566)

  • 88ae348 (uncategorized) Update Frame docstring to remove reference to generic backend (#564)

  • 089f8ba (uncategorized) Add double quotes to instructions for features (#560)

  • 346e7b4 (uncategorized) Add summary to breaking changes (#549)

  • 401a7a7 (uncategorized) Improve clarity in documentation for Frame and Terminal 📚 (#545)

  • e35e413 (uncategorized) Fix terminal comment (#547)

  • 8ae4403 (uncategorized) Fix Terminal docstring (#546)

  • 9cfb133 (uncategorized) Document alpha release process (#542)

    Fixes https://github.com/ratatui/ratatui/issues/412
    
  • 4548a9b (uncategorized) Add BREAKING-CHANGES.md (#538)

    Document the breaking changes in each version. This document is
    manually curated by summarizing the breaking changes in the changelog.
    
  • c0991cc (uncategorized) Make library and README consistent (#526)

    * docs: make library and README consistent
    
    Generate the bulk of the README from the library documentation, so that
    they are consistent using cargo-rdme.
    
    - Removed the Contributors section, as it is redundant with the github
      contributors list.
    - Removed the info about the other backends and replaced it with a
      pointer to the documentation.
    - add docsrs example, vhs tape and images that will end up in the README
    
  • 1414fbc (uncategorized) Import prelude::* in doc examples (#490)

    This commit adds `prelude::*` all doc examples and widget::* to those
    that need it. This is done to highlight the use of the prelude and
    simplify the examples.
    
    - Examples in Type and module level comments show all imports and use
      `prelude::*` and `widget::*` where possible.
    - Function level comments hide imports unless there are imports other
      than `prelude::*` and `widget::*`.
    
  • 74c5244 (uncategorized) Add logo and favicon to docs.rs page (#473)

  • 927a5d8 (uncategorized) Fix documentation lint warnings (#450)

  • eda2fb7 (uncategorized) Use ratatui 📚 (#446)

Testing

  • ea70bff (barchart) Add benchmarks (#455)

  • 94af2a2 (buffer) Allow with_lines to accept Vec<Into> (#494)

    This allows writing unit tests without having to call set_style on the
    expected buffer.
    

Miscellaneous Tasks

  • 1278131 (changelog) Make the scopes lowercase in the changelog (#479)

  • 82b40be (ci) Improve checking the PR title (#464)

    - Use [`action-semantic-pull-request`](https://github.com/amannn/action-semantic-pull-request)
    - Allow only reading the PR contents
    - Enable merge group
    
  • a20bd6a (deps) Update lru requirement from 0.11.1 to 0.12.0 (#581)

    Updates the requirements on [lru](https://github.com/jeromefroe/lru-rs) to permit the latest version.
    - [Changelog](https://github.com/jeromefroe/lru-rs/blob/master/CHANGELOG.md)
    - [Commits](https://github.com/jeromefroe/lru-rs/compare/0.11.1...0.12.0)
    
    ---
    updated-dependencies:
    - dependency-name: lru
      dependency-type: direct:production
    ...
    
  • 5213f78 (deps) Bump actions/checkout from 3 to 4 (#580)

    Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
    - [Release notes](https://github.com/actions/checkout/releases)
    - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
    - [Commits](https://github.com/actions/checkout/compare/v3...v4)
    
    ---
    updated-dependencies:
    - dependency-name: actions/checkout
      dependency-type: direct:production
      update-type: version-update:semver-major
    ...
    
  • 6cbdb06 (examples) Refactor some examples (#578)

    * chore(examples): Simplify timeout calculation with `Duration::saturating_sub`
    
  • 12f9291 (github) Create dependabot.yml (#575)

    * chore: Create dependabot.yml
    
    * Update .github/dependabot.yml
    
  • 3a57e76 (github) Add contact links for issues (#567)

  • 5498a88 (spans) Remove deprecated Spans type (#426)

    The `Spans` type (plural, not singular) was replaced with a more ergonomic `Line` type
    in Ratatui v0.21.0 and marked deprecated byt left for backwards compatibility. This is now
    removed.
    
    - `Line` replaces `Spans`
    - `Buffer::set_line` replaces `Buffer::set_spans`
    
  • fbf1a45 (uncategorized) Simplify constraints (#556)

    Use bare arrays rather than array refs / Vecs for all constraint
    examples.
    
  • a7bf4b3 (uncategorized) Use modern modules syntax (#492)

    Move xxx/mod.rs to xxx.rs
    
  • af36282 (uncategorized) Only run check pr action on pull_request_target events (#485)

  • 322e46f (uncategorized) Prevent PR merge with do not merge labels ♻️ (#484)

  • 983ea7f (uncategorized) Fix check for if breaking change label should be added ♻️ (#483)

  • 384e616 (uncategorized) Add a check for if breaking change label should be added ♻️ (#481)

  • 5f6aa30 (uncategorized) Check documentation lint (#454)

  • 47ae602 (uncategorized) Check that PR title matches conventional commit guidelines ♻️ (#459)

  • 28c6157 (uncategorized) Add documentation guidelines (#447)

Continuous Integration

  • 343c6cd (lint) Move formatting and doc checks first (#465)

    Putting the formatting and doc checks first to ensure that more critical
    errors are caught first (e.g. a conventional commit error or typo should
    not prevent the formatting and doc checks from running).
    
  • c95a75c (makefile) Remove termion dependency from doc lint (#470)

    Only build termion on non-windows targets
    
  • b996102 (makefile) Add format target (#468)

    - add format target to Makefile.toml that actually fixes the formatting
    - rename fmt target to lint-format
    - rename style-check target to lint-style
    - rename typos target to lint-typos
    - rename check-docs target to lint-docs
    - add section to CONTRIBUTING.md about formatting
    
  • 572df75 (uncategorized) Put commit id first in changelog (#463)

  • 878b6fc (uncategorized) Ignore benches from code coverage (#461)

Contributors

Thank you so much to everyone that contributed to this release!

Here is the list of contributors who have contributed to ratatui for the first time!

v0.23.0 - 2023-08-28

We are thrilled to release the new version of ratatui 🐭, the official successor* of tui-rs.

In this version, we improved the existing widgets such as Barchart and Scrollbar. We also made improvmements in the testing/internal APIs to provide a smoother testing/development experience. Additionally, we have addressed various bugs and implemented enhancements.

Here is a blog post that highlights the new features and breaking changes along with a retrospective about the project: https://blog.orhun.dev/ratatui-0-23-0

Features

  • (barchart) Add direction attribute. (horizontal bars support) (#325) (0dca6a6)

    * feat(barchart): Add direction attribute
    
    Enable rendering the bars horizontally. In some cases this allow us to
    make more efficient use of the available space.
    
  • (cell) Add voluntary skipping capability for sixel (#215) (e4bcf78)

    > Sixel is a bitmap graphics format supported by terminals.
    > "Sixel mode" is entered by sending the sequence ESC+Pq.
    > The "String Terminator" sequence ESC+\ exits the mode.
    
    The graphics are then rendered with the top left positioned at the
    cursor position.
    
    It is actually possible to render sixels in ratatui with just
    `buf.get_mut(x, y).set_symbol("^[Pq ... ^[\")`. But any buffer covering
    the "image area" will overwrite the graphics. This is most likely the same
    buffer, even though it consists of empty characters `' '`, except for
    the top-left character that starts the sequence.
    
    Thus, either the buffer or cells must be specialized to avoid drawing
    over the graphics. This patch specializes the `Cell` with a
    `set_skip(bool)` method, based on James' patch:
    https://github.com/TurtleTheSeaHobo/tui-rs/tree/sixel-support
    I unsuccessfully tried specializing the `Buffer`, but as far as I can tell
    buffers get merged all the way "up" and thus skipping must be set on the
    Cells. Otherwise some kind of "skipping area" state would be required,
    which I think is too complicated.
    
    Having access to the buffer now it is possible to skip all cells but the
    first one which can then `set_symbol(sixel)`. It is up to the user to
    deal with the graphics size and buffer area size. It is possible to get
    the terminal's font size in pixels with a syscall.
    
    An image widget for ratatui that uses this `skip` flag is available at
    https://github.com/benjajaja/ratatu-image.
    
  • (list) Add option to always allocate the "selection" column width (#394) (4d70169)

    * feat(list): add option to always allocate the "selection" column width
    
    Before this option was available, selecting a item in a list when nothing was selected
    previously made the row layout change (the same applies to unselecting) by adding the width
    of the "highlight symbol" in the front of the list, this option allows to configure this
    behavior.
    
    * style: change "highlight_spacing" doc comment to use inline code-block for reference
    
  • (release) Add automated nightly releases (#359) (aad164a)

    * feat(release): add automated nightly releases
    
    * refactor(release): rename the alpha workflow
    
    * refactor(release): simplify the release calculation
    
  • (scrollbar) Add optional track symbol (#360) (1727fa5) [breaking]

    The track symbol is now optional, simplifying composition with other
    widgets.
    
  • (table) Add support for line alignment in the table widget (#392) (7748720)

    * feat(table): enforce line alignment in table render
    
    * test(table): add table alignment render test
    
  • (widgets::table) Add option to always allocate the "selection" constraint (#375) (f63ac72)

    * feat(table): add option to configure selection layout changes
    
    Before this option was available, selecting a row in the table when no row was selected
    previously made the tables layout change (the same applies to unselecting) by adding the width
    of the "highlight symbol" in the front of the first column, this option allows to configure this
    behavior.
    
    * refactor(table): refactor "get_columns_widths" to return (x, width)
    
    and "render" to make use of that
    
    * refactor(table): refactor "get_columns_widths" to take in a selection_width instead of a boolean
    
    also refactor "render" to make use of this change
    
    * fix(table): rename "highlight_set_selection_space" to "highlight_spacing"
    
    * style(table): apply doc-comment suggestions from code review
    
  • (uncategorized) Expand serde attributes for TestBuffer (#389) (57ea871)

  • (uncategorized) Add weak constraints to make rects closer to each other in size (#395) (6153371)

    Also make `Max` and `Min` constraints MEDIUM strength for higher priority over equal chunks
    
  • (uncategorized) Simplify split function (#411) (b090101)

Bug Fixes

  • (barchart) Empty groups causes panic (#333) (9c95673)

    This unlikely to happen, since nobody wants to add an empty group.
    Even we fix the panic, things will not render correctly.
    So it is better to just not add them to the BarChart.
    
  • (block) Fixed title_style not rendered (#349) (#363) (49a82e0)

  • (cargo) Adjust minimum paste version (#348) (8db9fb4)

    ratatui is using features that are currently only available in paste 1.0.2; specifying the minimum version to be 1.0 will consequently cause a compilation error if cargo is only able to use a version less than 1.0.2.
    
  • (example) Fix typo (#337) (daf5890)

    the existential feels
    
  • (layout) Don't leave gaps between chunks (#408) (56455e0)

    Previously the layout used the floor of the calculated start and width
    as the value to use for the split Rects. This resulted in gaps between
    the split rects.
    
    This change modifies the layout to round to the nearest column instead
    of taking the floor of the start and width. This results in the start
    and end of each rect being rounded the same way and being strictly
    adjacent without gaps.
    
    Because there is a required constraint that ensures that the last end is
    equal to the area end, there is no longer the need to fixup the last
    item width when the fill (as e.g. width = x.99 now rounds to x+1 not x).
    
    The colors example has been updated to use Ratio(1, 8) instead of
    Percentage(13), as this now renders without gaps for all possible sizes,
    whereas previously it would have left odd gaps between columns.
    
  • (layout) Ensure left <= right (#410) (f4ed3b7)

    The recent refactor missed the positive width constraint
    
  • (readme) Fix typo in readme (#344) (d05ab6f)

  • (readme) Fix incorrect template link (#338) (b9290b3)

  • (readme) Fix typo in readme (#336) (7e37a96)

  • (release) Fix the last tag retrieval for alpha releases (#416) (b6b2da5)

  • (release) Set the correct permissions for creating alpha releases (#400) (778c320)

  • (scrollbar) Move symbols to symbols module (#330) (7539f77) [breaking]

    The symbols and sets are moved from `widgets::scrollbar` to
    `symbols::scrollbar`. This makes it consistent with the other symbol
    sets and allows us to make the scrollbar module private rather than
    re-exporting it.
    
  • (table) Fix unit tests broken due to rounding (#419) (dc55211)

    The merge of the table unit tests after the rounding layout fix was not
    rebased correctly, this addresses the broken tests, makes them more
    concise while adding comments to help clarify that the rounding behavior
    is working as expected.
    
  • (uncategorized) Correct minor typos in documentation (#331) (13fb11a)

Refactor

  • (barchart) Reduce some calculations (#430) (fc727df)

    Calculating the label_offset is unnecessary, if we just render the
    group label after rendering the bars. We can just reuse bar_y.
    
  • (layout) Simplify and doc split() (#405) (de25de0)

    * test(layout): add tests for split()
    
    * refactor(layout): simplify and doc split()
    
    This is mainly a reduction in density of the code with a goal of
    improving mainatainability so that the algorithm is clear.
    
  • (layout) Simplify split() function (#396) (5195099)

    Removes some unnecessary code and makes the function more readable.
    Instead of creating a temporary result and mutating it, we just create
    the result directly from the list of changes.
    

Documentation

  • (examples) Fix the instructions for generating demo GIF (#442) (7a70602)

  • (examples) Show layout constraints (#393) (10dbd6f)

    Shows the way that layout constraints interact visually
    
    ![example](https://vhs.charm.sh/vhs-1ZNoNLNlLtkJXpgg9nCV5e.gif)
    
  • (examples) Add color and modifiers examples (#345) (6ad4bd4)

    The intent of these examples is to show the available colors and
    modifiers.
    
    - added impl Display for Color
    
    ![colors](https://vhs.charm.sh/vhs-2ZCqYbTbXAaASncUeWkt1z.gif)
    ![modifiers](https://vhs.charm.sh/vhs-2ovGBz5l3tfRGdZ7FCw0am.gif)
    
  • (examples) Regen block.gif in readme (#365) (e82521e)

  • (examples) Update block example (#351) (554805d)

    ![Block example](https://vhs.charm.sh/vhs-5X6hpReuDBKjD6hLxmDQ6F.gif)
    
  • (examples) Add examples readme with gifs (#303) (add578a)

    This commit adds a readme to the examples directory with gifs of each
    example. This should make it easier to see what each example does
    without having to run it.
    
    I modified the examples to fit better in the gifs. Mostly this was just
    removing the margins, but for the block example I cleaned up the code a
    bit to make it more readable and changed it so the background bug is not
    triggered.
    
    For the table example, the combination of Min, Length, and Percent
    constraints was causing the table to panic when the terminal was too
    small. I changed the example to use the Max constraint instead of the
    Length constraint.
    
    The layout example now shows information about how the layout is
    constrained on each block (which is now a paragraph with a block).
    
  • (layout) Add doc comments (#403) (418ed20)

  • (layout::Constraint) Add doc-comments for all variants (#371) (c8ddc16)

  • (lib) Extract feature documentation from Cargo.toml (#438) (8b36683)

    * docs(lib): extract feature documentation from Cargo.toml
    
    * chore(deps): make `document-features` optional dependency
    
    * docs(lib): document the serde feature from features section
    
  • (paragraph) Add more docs (#428) (6d6ecee)

  • (project) Make the project description cooler (#441) (47fe4ad)

    * docs(project): make the project description cooler
    
    * docs(lib): simplify description
    
  • (readme) Use the correct version for MSRV (#369) (3a37d2f)

  • (readme) Fix widget docs links (#346) (2920e04)

    Add scrollbar, clear. Fix Block link. Sort
    
  • (span) Update docs and tests for Span (#427) (d0ee04a)

  • (uncategorized) Improve scrollbar doc comment (#329) (c3f87f2)

Performance

  • (bench) Used iter_batched to clone widgets in setup function (#383) (149d489)

    Replaced `Bencher::iter` by `Bencher::iter_batched` to clone the widget in the setup function instead of in the benchmark timing.
    

Styling

  • (paragraph) Add documentation for "scroll"'s "offset" (#355) (ab5e616)

    * style(paragraph): add documentation for "scroll"'s "offset"
    
    * style(paragraph): add more text to the scroll doc-comment
    

Testing

  • (block) Test all block methods (#431) (a890f2a)

  • (block) Add benchmarks (#368) (e18393d)

    Added benchmarks to the block widget to uncover eventual performance issues
    
  • (canvas) Add unit tests for line (#437) (ad3413e)

    Also add constructor to simplify creating lines
    
  • (canvas) Add tests for rectangle (#429) (ad4d6e7)

  • (clear) Test Clear rendering (#432) (e9bd736)

  • (list) Added benchmarks (#377) (664fb4c)

    Added benchmarks for the list widget (render and render half scrolled)
    
  • (map) Add unit tests (#436) (f0716ed)

  • (sparkline) Added benchmark (#384) (3293c6b)

    Added benchmark for the `sparkline` widget testing a basic render with different amount of data
    
  • (styled_grapheme) Test StyledGrapheme methods (#433) (292a11d)

  • (table) Add test for consistent table-column-width (#404) (4cd843e)

  • (tabs) Add unit tests (#439) (14eb6b6)

  • (test_backend) Add tests for TestBackend coverage (#434) (b35f19e)

    These are mostly to catch any future bugs introduced in the test backend
    
  • (text) Add unit tests (#435) (fc9f637)

Miscellaneous Tasks

  • (changelog) Ignore alpha tags (#440) (6009844)

  • (changelog) Show full commit message (#423) (a937500)

    This allows someone reading the changelog to search for information
    about breaking changes or implementation of new functionality.
    
    - refactored the commit template part to a macro instead of repeating it
    - added a link to the commit and to the release
    - updated the current changelog for the alpha and unreleased changes
    - Automatically changed the existing * lists to - lists
    
  • (ci) Update the name of the CI workflow (#417) (89ef0e2)

  • (codecov) Fix yaml syntax (#407) (ea48af1)

    a yaml file cannot contain tabs outside of strings
    
  • (docs) Add doc comment bump to release documentation (#382) (8b28672)

  • (github) Add kdheepak as a maintainer (#343) (60a4131)

  • (github) Rename tui-rs-revival references to ratatui-org (#340) (964190a)

  • (make) Add task descriptions to Makefile.toml (#398) (268bbed)

  • (toolchain) Bump msrv to 1.67 (#361) (8cd3205) [breaking]

    * chore(toolchain)!: bump msrv to 1.67
    
  • (traits) Add Display and FromStr traits (#425) (98155dc)

    Use strum for most of these, with a couple of manual implementations,
    and related tests
    
  • (uncategorized) Create rust-toolchain.toml (#415) (d2429bc)

  • (uncategorized) Use vhs to create demo.gif (#390) (8c55158)

    The bug that prevented braille rendering is fixed, so switch to VHS for
    rendering the demo gif
    
    ![Demo of Ratatui](https://vhs.charm.sh/vhs-tF0QbuPbtHgUeG0sTVgFr.gif)
    
  • (uncategorized) Implement Hash common traits (#381) (8c4a2e0)

    Reorder the derive fields to be more consistent:
    
        Debug, Default, Clone, Copy, Eq, PartialEq, Ord, PartialOrd, Hash
    
    Hash trait won't be impl in this PR due to rust std design.
    If we need hash trait for f64 related structs in the future,
    we should consider wrap f64 into a new type.
    
  • (uncategorized) Implement Eq & PartialEq common traits (#357) (181706c)

    Reorder the derive fields to be more consistent:
    
        Debug, Default, Clone, Copy, Eq, PartialEq, Ord, PartialOrd, Hash
    
  • (uncategorized) Implement Clone & Copy common traits (#350) (440f62f)

    Implement `Clone & Copy` common traits for most structs in src.
    
    Only implement `Copy` for structs that are simple and trivial to copy.
    
    Reorder the derive fields to be more consistent:
    
        Debug, Default, Clone, Copy, Eq, PartialEq, Ord, PartialOrd, Hash
    
  • (uncategorized) Implement Debug & Default common traits (#339) (bf49446)

    Implement `Debug & Default` common traits for most structs in src.
    
    Reorder the derive fields to be more consistent:
    
        Debug, Default, Clone, Copy, Eq, PartialEq, Ord, PartialOrd, Hash
    

Build

  • (deps) Upgrade crossterm to 0.27 (#380) (37fa6ab)

  • (examples) Fix cargo make run-examples (#327) (e2cb11c)

    Enables the all-widgets feature so that the calendar example runs correctly
    
  • (uncategorized) Forbid unsafe code (#332) (0fb1ed8)

    This indicates good (high level) code and is used by tools like cargo-geiger.
    

Continuous Integration

  • (coverage) Exclude examples directory from coverage (#373) (de9f52f)

  • (uncategorized) Don't fail fast (#364) (9191ad6)

    Run all the tests rather than canceling when one test fails. This allows
    us to see all the failures, rather than just the first one if there are
    multiple. Specifically this is useful when we have an issue in one
    toolchain or backend.
    
  • (uncategorized) Add coverage token (#352) (6f659cf)

Contributors

Thank you so much to everyone that contributed to this release!

Here is the list of contributors who have contributed to ratatui for the first time!

v0.22.0 - 2023-07-17

Features

  • (barchart) Set custom text value in the bar (#309)
  • (barchart) Enable barchart groups (#288)
  • (block) Support for having more than one title (#232)
  • (examples) User_input example cursor movement (#302)
  • (misc) Make builder fn const (#275) (#275)
  • (prelude) Add a prelude (#304)
  • (style) Enable setting the underline color for crossterm (#308) (#310)
  • (style) Allow Modifiers add/remove in const (#287)
  • (stylize) Allow all widgets to be styled (#289)
  • (terminal) Expose 'swap_buffers' method
  • (uncategorized) Stylization shorthands (#283)
  • (uncategorized) Add scrollbar widget (#228)

Bug Fixes

  • (clippy) Unused_mut lint for layout (#285)
  • (examples) Correct progress label in gague example (#263)
  • (layout) Cap Constraint::apply to 100% length (#264)
  • (lint) Suspicious_double_ref_op is new in 1.71 (#311)
  • (prelude) Remove widgets module from prelude (#317)
  • (title) Remove default alignment and position (#323)
  • (typos) Configure typos linter (#233)
  • (uncategorized) Rust-tui-template became a revival project (#320)
  • (uncategorized) Revert removal of WTFPL from deny.toml (#266)

Refactor

  • (ci) Simplify cargo-make installation (#240)
  • (text) Simplify reflow implementation (#290)

Documentation

  • (color) Parse more color formats and add docs (#306)
  • (lib) Add tui-term a pseudoterminal library (#268)
  • (lib) Fixup tui refs in widgets/mod.rs (#216)
  • (lib) Add backend docs (#213)
  • (readme) Remove duplicated mention of tui-rs-tree-widgets (#223)
  • (uncategorized) Improve CONTRIBUTING.md (#277)
  • (uncategorized) Fix scrollbar ascii illustrations and calendar doc paths (#272)
  • (uncategorized) README tweaks (#225)
  • (uncategorized) Add CODEOWNERS file (#212)
  • (uncategorized) Update README.md and add hello_world example (#204)

Styling

  • (comments) Set comment length to wrap at 100 chars (#218)
  • (config) Apply formatting to config files (#238)
  • (manifest) Apply formatting to Cargo.toml (#237)
  • (readme) Update the style of badges in README.md (#299)
  • (widget) Inline format arguments (#279)
  • (uncategorized) Fix formatting (#292)
  • (uncategorized) Reformat imports (#219)

Testing

  • (barchart) Add unit tests (#301)
  • (paragraph) Simplify paragraph benchmarks (#282)
  • (uncategorized) Add benchmarks for paragraph (#262)

Miscellaneous Tasks

  • (ci) Bump cargo-make version (#239)
  • (ci) Enable merge queue for builds (#235)
  • (ci) Integrate cargo-deny for linting dependencies (#221)
  • (commitizen) Add commitizen config (#222)
  • (demo) Update demo gif (#234)
  • (demo) Update demo gif with a fixed unicode gauge (#227)
  • (features) Enable building with all-features (#286)
  • (github) Add EditorConfig config (#300)
  • (github) Simplify the CODEOWNERS file (#271)
  • (github) Add pull request template (#269)
  • (github) Fix the syntax in CODEOWNERS file (#236)
  • (license) Add Ratatui developers to license (#297)
  • (tests) Add coverage job to bacon (#312)
  • (uncategorized) Lint and doc cleanup (#191)

Build

  • (deps) Upgrade bitflags to 2.3 (#205) [breaking]
  • (uncategorized) Add git pre-push hooks using cargo-husky (#274)

Continuous Integration

  • (makefile) Split CI jobs (#278)
  • (uncategorized) Parallelize CI jobs (#318)
  • (uncategorized) Add feat-wrapping on push and on pull request ci triggers (#267)
  • (uncategorized) Add code coverage action (#209)

Contributors

Thank you so much to everyone that contributed to this release!

Here is the list of contributors who have contributed to ratatui for the first time!

v0.21.0 - 2023-05-28

Features

  • (backend) Add termwiz backend and example (#5)
  • (block) Support placing the title on bottom (#36)
  • (border) Add border! macro for easy bitflag manipulation (#11)
  • (calendar) Add calendar widget (#138)
  • (color) Add FromStr implementation for Color (#180)
  • (list) Add len() to List (#24)
  • (paragraph) Allow Lines to be individually aligned (#149)
  • (sparkline) Finish #1 Sparkline directions PR (#134)
  • (terminal) Add inline viewport (#114) [breaking]
  • (test) Expose test buffer (#160)
  • (text) Add Masked to display secure data (#168) [breaking]
  • (widget) Add circle widget (#159)
  • (widget) Add style methods to Span, Spans, Text (#148)
  • (widget) Support adding padding to Block (#20)
  • (widget) Add offset() and offset_mut() for table and list state (#12)

Bug Fixes

  • (canvas) Use full block for Marker::Block (#133) [breaking]
  • (example) Update input in examples to only use press events (#129)
  • (uncategorized) Cleanup doc example (#145)
  • (reflow) Remove debug macro call (#198)

Refactor

  • (example) Remove redundant vec![] in user_input example (#26)
  • (example) Refactor paragraph example (#152)
  • (style) Mark some Style fns const so they can be defined globally (#115)
  • (text) Replace Spans with Line (#178)

Documentation

  • (apps) Fix rsadsb/adsb_deku radar link (#140)
  • (apps) Add tenere (#141)
  • (apps) Add twitch-tui (#124)
  • (apps) Add oxycards (#113)
  • (apps) Re-add trippy to APPS.md (#117)
  • (block) Add example for block.inner (#158)
  • (changelog) Update the empty profile link in contributors (#112)
  • (readme) Fix small typo in readme (#186)
  • (readme) Add termwiz demo to examples (#183)
  • (readme) Add acknowledgement section (#154)
  • (readme) Update project description (#127)
  • (uncategorized) Scrape example code from examples/* (#195)

Styling

  • (apps) Update the style of application list (#184)
  • (readme) Update project introduction in README.md (#153)
  • (uncategorized) Clippy's variable inlining in format macros

Testing

  • (buffer) Add assert_buffer_eq! and Debug implementation (#161)
  • (list) Add characterization tests for list (#167)
  • (widget) Add unit tests for Paragraph (#156)

Miscellaneous Tasks

  • (uncategorized) Inline format args (#190)
  • (uncategorized) Minor lints, making Clippy happier (#189)

Build

  • (uncategorized) Bump MSRV to 1.65.0 (#171)

Continuous Integration

  • (uncategorized) Add ci, build, and revert to allowed commit types

Contributors

Thank you so much to everyone that contributed to this release!

Here is the list of contributors who have contributed to ratatui for the first time!

v0.20.1 - 2023-03-19

Bug Fixes

  • (style) Bold needs a bit (#104)

Documentation

  • (apps) Add "logss" to apps (#105)
  • (uncategorized) Fixup remaining tui references (#106)

Contributors

Thank you so much to everyone that contributed to this release!

v0.20.0 - 2023-03-19

This marks the first release of ratatui, a community-maintained fork of tui.

The purpose of this release is to include bug fixes and small changes into the repository thus no new features are added. We have transferred all the pull requests from the original repository and worked on the low hanging ones to incorporate them in this "maintenance" release.

Here is a list of changes:

Features

  • (cd) Add continuous deployment workflow (#93)
  • (ci) Add MacOS to CI (#60)
  • (widget) Add offset() to TableState (#10)
  • (widget) Add width() to ListItem (#17)

Bug Fixes

  • (ci) Test MSRV compatibility on CI (#85)
  • (ci) Bump Rust version to 1.63.0 (#80)
  • (ci) Use env for the cargo-make version (#76)
  • (ci) Fix deprecation warnings on CI (#58)
  • (doc) Add 3rd party libraries accidentally removed at #21 (#61)
  • (widget) List should not ignore empty string items (#42) [breaking]
  • (uncategorized) Cassowary/layouts: add extra constraints for fixing Min(v)/Max(v) combination. (#31)
  • (uncategorized) Fix user_input example double key press registered on windows
  • (uncategorized) Ignore zero-width symbol on rendering Paragraph
  • (uncategorized) Fix typos (#45)
  • (uncategorized) Fix typos (#47)

Refactor

  • (style) Make bitflags smaller (#13)

Documentation

  • (apps) Move 'apps using ratatui' to dedicated file (#98) (#99)
  • (canvas) Add documentation for x_bounds, y_bounds (#35)
  • (contributing) Specify the use of unsafe for optimization (#67)
  • (github) Remove pull request template (#68)
  • (readme) Update crate status badge (#102)
  • (readme) Small edits before first release (#101)
  • (readme) Add install instruction and update title (#100)
  • (readme) Add systeroid to application list (#92)
  • (readme) Add glicol-cli to showcase list (#95)
  • (readme) Add oxker to application list (#74)
  • (readme) Add app kubectl-watch which uses tui (#73)
  • (readme) Add poketex to 'apps using tui' in README (#64)
  • (readme) Update README.md (#39)
  • (readme) Update README.md (#40)
  • (readme) Clarify README.md fork status update
  • (uncategorized) Fix: fix typos (#90)
  • (uncategorized) Update to build more backends (#81)
  • (uncategorized) Expand "Apps" and "Third-party" sections (#21)
  • (uncategorized) Add tui-input and update xplr in README.md
  • (uncategorized) Add hncli to list of applications made with tui-rs (#41)
  • (uncategorized) Updated readme and contributing guide with updates about the fork (#46)

Performance

  • (layout) Better safe shared layout cache (#62)

Miscellaneous Tasks

  • (cargo) Update project metadata (#94)
  • (ci) Integrate typos for checking typos (#91)
  • (ci) Change the target branch to main (#79)
  • (ci) Re-enable clippy on CI (#59)
  • (uncategorized) Integrate committed for checking conventional commits (#77)
  • (uncategorized) Update rust-version to 1.59 in Cargo.toml (#57)
  • (uncategorized) Update deps (#51)
  • (uncategorized) Fix typo in layout.rs (#619)
  • (uncategorized) Add apps using tui

Contributors

Thank you so much to everyone that contributed to this release!

And most importantly, special thanks to Florian Dehau for creating this awesome library 💖 We look forward to building on the strong foundations that the original crate laid out.

v0.19.0 - 2022-08-14

Features

  • Bump crossterm to 0.25

v0.18.0 - 2022-04-24

Features

  • Update crossterm to 0.23

v0.17.0 - 2022-01-22

Features

  • Add option to widgets::List to repeat the highlight symbol for each line of multi-line items (#533).
  • Add option to control the alignment of Axis labels in the Chart widget (#568).

Breaking changes

  • The minimum supported rust version is now 1.56.1.

New default backend and consolidated backend options (#553)

  • crossterm is now the default backend. If you are already using the crossterm backend, you can simplify your dependency specification in Cargo.toml:
- tui = { version = "0.16", default-features = false, features = ["crossterm"] }
+ tui = "0.17"

If you are using the termion backend, your Cargo is now a bit more verbose:

- tui = "0.16"
+ tui = { version = "0.17", default-features = false, features = ["termion"] }

crossterm has also been bumped to version 0.22.

Because of their apparent low usage, curses and rustbox backends have been removed. If you are using one of them, you can import their last implementation in your own project:

Canvas labels (#543)

  • Labels of the Canvas widget are now text::Spans. The signature of widgets::canvas::Context::print has thus been updated:
- ctx.print(x, y, "Some text", Color::Yellow);
+ ctx.print(x, y, Span::styled("Some text", Style::default().fg(Color::Yellow)))

v0.16.0 - 2021-08-01

Features

  • Update crossterm to 0.20.
  • Add From<Cow<str>> implementation for text::Text (#471).
  • Add option to right or center align the title of a widgets::Block (#462).

Fixes

  • Apply label style in widgets::Gauge and avoid panics because of overflows with long labels (#494).
  • Avoid panics because of overflows with long axis labels in widgets::Chart (#512).
  • Fix computation of column widths in widgets::Table (#514).
  • Fix panics because of invalid offset when input changes between two frames in widgets::List and widgets::Chart (#516).

v0.15.0 - 2021-05-02

Features

  • Update crossterm to 0.19.
  • Update rand to 0.8.
  • Add a read-only view of the terminal state after the draw call (#440).

Fixes

  • Remove compile warning in TestBackend::assert_buffer (#466).

v0.14.0 - 2021-01-01

Breaking changes

New API for the Table widget

The Table widget got a lot of improvements that should make it easier to work with:

  • It should not longer panic when rendered on small areas.
  • Rows are now a collection of Cells, themselves wrapping a Text. This means you can style the entire Table, an entire Row, an entire Cell and rely on the styling capabilities of Text to get full control over the look of your Table.
  • Rows can have multiple lines.
  • The header is now optional and is just another Row always visible at the top.
  • Rows can have a bottom margin.
  • The header alignment is no longer off when an item is selected.

Taking the example of the code in examples/demo/ui.rs, this is what you may have to change:

     let failure_style = Style::default()
         .fg(Color::Red)
         .add_modifier(Modifier::RAPID_BLINK | Modifier::CROSSED_OUT);
-    let header = ["Server", "Location", "Status"];
     let rows = app.servers.iter().map(|s| {
         let style = if s.status == "Up" {
             up_style
         } else {
             failure_style
         };
-        Row::StyledData(vec![s.name, s.location, s.status].into_iter(), style)
+        Row::new(vec![s.name, s.location, s.status]).style(style)
     });
-    let table = Table::new(header.iter(), rows)
+    let table = Table::new(rows)
+        .header(
+            Row::new(vec!["Server", "Location", "Status"])
+                .style(Style::default().fg(Color::Yellow))
+                .bottom_margin(1),
+        )
         .block(Block::default().title("Servers").borders(Borders::ALL))
-        .header_style(Style::default().fg(Color::Yellow))
         .widths(&[
             Constraint::Length(15),
             Constraint::Length(15),

Here, we had to:

  • Change the way we construct Row which is no longer an enum but a struct. It accepts anything that can be converted to an iterator of things that can be converted to a Cell
  • The header is no longer a required parameter so we use Table::header to set it. Table::header_style has been removed since the style can be directly set using Row::style. In addition, we want to preserve the old margin between the header and the rest of the rows so we add a bottom margin to the header using Row::bottom_margin.

You may want to look at the documentation of the different types to get a better understanding:

Fixes

  • Fix handling of Non Breaking Space (NBSP) in wrapped text in Paragraph widget.

Features

  • Add Style::reset to create a Style resetting all styling properties when applied.
  • Add an option to render the Gauge widget with unicode blocks.
  • Manage common project tasks with cargo-make rather than make for easier on-boarding.

v0.13.0 - 2020-11-14

Features

  • Add LineGauge widget which is a more compact variant of the existing Gauge.
  • Bump crossterm to 0.18

Fixes

  • Take into account the borders of the Table widget when the widths of columns is controlled by Percentage and Ratio constraints.

v0.12.0 - 2020-09-27

Features

  • Make it easier to work with string with multiple lines in Text (#361).

Fixes

  • Fix a style leak in Graph so components drawn on top of the plotted data (i.e legend and axis titles) are not affected by the style of the Datasets (#388).
  • Make sure BarChart shows bars with the max height only when the plotted data is actually equal to the max (#383).

v0.11.0 - 2020-09-20

Features

  • Add the dot character as a new type of canvas marker (#350).
  • Support more style modifiers on Windows (#368).

Fixes

  • Clearing the terminal through Terminal::clear will cause the whole UI to be redrawn (#380).
  • Fix incorrect output when the first diff to draw is on the second cell of the terminal (#347).

v0.10.0 - 2020-07-17

Breaking changes

Easier cursor management

A new method has been added to Frame called set_cursor. It lets you specify where the cursor should be placed after the draw call. Furthermore like any other widgets, if you do not set a cursor position during a draw call, the cursor is automatically hidden.

For example:

fn draw_input(f: &mut Frame, app: &App) {
  if app.editing {
    let input_width = app.input.width() as u16;
    // The cursor will be placed just after the last character of the input
    f.set_cursor((input_width + 1, 0));
  } else {
    // We are no longer editing, the cursor does not have to be shown, set_cursor is not called and
    // thus automatically hidden.
  }
}

In order to make this possible, the draw closure takes in input &mut Frame instead of mut Frame.

Advanced text styling

It has been reported several times that the text styling capabilities were somewhat limited in many places of the crate. To solve the issue, this release includes a new set of text primitives that are now used by a majority of widgets to provide flexible text styling.

Text is replaced by the following types:

  • Span: a string with a unique style.
  • Spans: a string with multiple styles.
  • Text: a multi-lines string with multiple styles.

However, you do not always need this complexity so the crate provides From implementations to let you use simple strings as a default and switch to the previous primitives when you need additional styling capabilities.

For example, the title of a Block can be set in the following ways:

// A title with no styling
Block::default().title("My title");
// A yellow title
Block::default().title(Span::styled("My title", Style::default().fg(Color::Yellow)));
// A title where "My" is bold and "title" is a simple string
Block::default().title(vec![
    Span::styled("My", Style::default().add_modifier(Modifier::BOLD)),
    Span::from("title")
]);
  • Buffer::set_spans and Buffer::set_span were added.
  • Paragraph::new expects an input that can be converted to a Text.
  • Block::title_style is deprecated.
  • Block::title expects a Spans.
  • Tabs expects a list of Spans.
  • Gauge custom label is now a Span.
  • Axis title and labels are Spans (as a consequence Chart no longer has generic bounds).

Incremental styling

Previously Style was used to represent an exhaustive set of style rules to be applied to an UI element. It implied that whenever you wanted to change even only one property you had to provide the complete style. For example, if you had a Block where you wanted to have a green background and a title in bold, you had to do the following:

let style = Style::default().bg(Color::Green);
Block::default()
  .style(style)
  .title("My title")
  // Here we reused the style otherwise the background color would have been reset
  .title_style(style.modifier(Modifier::BOLD));

In this new release, you may now write this as:

Block::default()
    .style(Style::default().bg(Color::Green))
    // The style is not overridden anymore, we simply add new style rule for the title.
    .title(Span::styled("My title", Style::default().add_modifier(Modifier::BOLD)))

In addition, the crate now provides a method patch to combine two styles into a new set of style rules:

let style = Style::default().modifier(Modifier::BOLD);
let style = style.patch(Style::default().add_modifier(Modifier::ITALIC));
// style.modifier == Modifier::BOLD | Modifier::ITALIC, the modifier has been enriched not overridden
  • Style::modifier has been removed in favor of Style::add_modifier and Style::remove_modifier.
  • Buffer::set_style has been added. Buffer::set_background is deprecated.
  • BarChart::style no longer set the style of the bars. Use BarChart::bar_style in replacement.
  • Gauge::style no longer set the style of the gauge. Use Gauge::gauge_style in replacement.

List with item on multiple lines

The List widget has been refactored once again to support items with variable heights and complex styling.

  • List::new expects an input that can be converted to a Vec<ListItem> where ListItem is a wrapper around the item content to provide additional styling capabilities. ListItem contains a Text.
  • List::items has been removed.
// Before
let items = vec![
  "Item1",
  "Item2",
  "Item3"
];
List::default().items(items.iters());

// After
let items = vec![
  ListItem::new("Item1"),
  ListItem::new("Item2"),
  ListItem::new("Item3"),
];
List::new(items);

See the examples for more advanced usages.

More wrapping options

Paragraph::wrap expects Wrap instead of bool to let users decided whether they want to trim whitespaces when the text is wrapped.

// before
Paragraph::new(text).wrap(true)
// after
Paragraph::new(text).wrap(Wrap { trim: true }) // to have the same behavior
Paragraph::new(text).wrap(Wrap { trim: false }) // to use the new behavior

Horizontal scrolling in paragraph

You can now scroll horizontally in Paragraph. The argument of Paragraph::scroll has thus be changed from u16 to (u16, u16).

Features

Serialization of style

You can now serialize and de-serialize Style using the optional serde feature.

v0.9.5 - 2020-05-21

Bug Fixes

  • Fix out of bounds panic in widgets::Tabs when the widget is rendered on small areas.

v0.9.4 - 2020-05-12

Bug Fixes

  • Ignore zero-width graphemes in Buffer::set_stringn.

v0.9.3 - 2020-05-11

Bug Fixes

  • Fix usize overflows in widgets::Chart when a dataset is empty.

v0.9.2 - 2020-05-10

Bug Fixes

  • Fix usize overflows in widgets::canvas::Line drawing algorithm.

v0.9.1 - 2020-04-16

Bug Fixes

  • The List widget now takes into account the width of the highlight_symbol when calculating the total width of its items. It prevents items to overflow outside of the widget area.

v0.9.0 - 2020-04-14

Features

  • Introduce stateful widgets, i.e widgets that can take advantage of keeping some state around between two draw calls (#210 goes a bit more into the details).
  • Allow a Table row to be selected.
// State initialization
let mut state = TableState::default();

// In the terminal.draw closure
let header = ["Col1", "Col2", "Col"];
let rows = [
  Row::Data(["Row11", "Row12", "Row13"].into_iter())
];
let table = Table::new(header.into_iter(), rows.into_iter());
f.render_stateful_widget(table, area, &mut state);

// In response to some event:
state.select(Some(1));
  • Add a way to choose the type of border used to draw a block. You can now choose from plain, rounded, double and thick lines.

  • Add a graph_type property on the Dataset of a Chart widget. By default it will be Scatter where the points are drawn as is. An other option is Line where a line will be draw between each consecutive points of the dataset.

  • Style methods are now const, allowing you to initialize const Style objects.

  • Improve control over whether the legend in the Chart widget is shown or not. You can now set custom constraints using Chart::hidden_legend_constraints.

  • Add Table::header_gap to add some space between the header and the first row.

  • Remove log from the dependencies

  • Add a way to use a restricted set of unicode symbols in several widgets to improve portability in exchange of a degraded output. (see BarChart::bar_set, Sparkline::bar_set and Canvas::marker). You can check how the --enhanced-graphics flag is used in the demos.

Breaking Changes

  • Widget::render has been deleted. You should now use Frame::render_widget to render a widget on the corresponding Frame. This makes the Widget implementation totally decoupled from the Frame.
// Before
Block::default().render(&mut f, size);

// After
let block = Block::default();
f.render_widget(block, size);
  • Widget::draw has been renamed to Widget::render and the signature has been updated to reflect that widgets are consumable objects. Thus the method takes self instead of &mut self.
// Before
impl Widget for MyWidget {
  fn draw(&mut self, area: Rect, buf: &mut Buffer) {
  }
}

/// After
impl Widget for MyWidget {
  fn render(self, arera: Rect, buf: &mut Buffer) {
  }
}
  • Widget::background has been replaced by Buffer::set_background
// Before
impl Widget for MyWidget {
  fn render(self, arera: Rect, buf: &mut Buffer) {
    self.background(area, buf, self.style.bg);
  }
}

// After
impl Widget for MyWidget {
  fn render(self, arera: Rect, buf: &mut Buffer) {
    buf.set_background(area, self.style.bg);
  }
}
  • Update the Shape trait for objects that can be draw on a Canvas widgets. Instead of returning an iterator over its points, a Shape is given a Painter object that provides a paint as well as a get_point method. This gives the Shape more information about the surface it will be drawn to. In particular, this change allows the Line shape to use a more precise and efficient drawing algorithm (Bresenham's line algorithm).

  • SelectableList has been deleted. You can now take advantage of the associated ListState of the List widget to select an item.

// Before
List::new(&["Item1", "Item2", "Item3"])
  .select(Some(1))
  .render(&mut f, area);

// After

// State initialization
let mut state = ListState::default();

// In the terminal.draw closure
let list = List::new(&["Item1", "Item2", "Item3"]);
f.render_stateful_widget(list, area, &mut state);

// In response to some events
state.select(Some(1));
  • widgets::Marker has been moved to symbols::Marker

v0.8.0 - 2019-12-15

Breaking Changes

  • Bump crossterm to 0.14.
  • Add cross symbol to the symbols list.

Bug Fixes

  • Use the value of title_style to style the title of Axis.

v0.7.0 - 2019-11-29

Breaking Changes

  • Use Constraint instead of integers to specify the widths of the Table widget's columns. This will allow more responsive tables.
Table::new(header, row)
  .widths(&[15, 15, 10])
  .render(f, chunk);

becomes:

Table::new(header, row)
  .widths(&[
    Constraint::Length(15),
    Constraint::Length(15),
    Constraint::Length(10),
  ])
  .render(f, chunk);
  • Bump crossterm to 0.13.
  • Use Github Actions for CI (Travis and Azure Pipelines integrations have been deleted).

Features

  • Add support for horizontal and vertical margins in Layout.

v0.6.2 - 2019-07-16

Features

  • Text implements PartialEq

Bug Fixes

  • Avoid overflow errors in canvas

v0.6.1 - 2019-06-16

Bug Fixes

  • Avoid a division by zero when all values in a barchart are equal to 0.
  • Fix the inverted cursor position in the curses backend.
  • Ensure that the correct terminal size is returned when using the crossterm backend.
  • Avoid highlighting the separator after the selected item in the Tabs widget.

v0.6.0 - 2019-05-18

Breaking Changes

  • Update crossterm backend

v0.5.1 - 2019-04-14

Bug Fixes

  • Fix a panic in the Sparkline widget

v0.5.0 - 2019-03-10

Features

  • Add a new curses backend (with Windows support thanks to pancurses).
  • Add Backend::get_cursor and Backend::set_cursor methods to query and set the position of the cursor.
  • Add more constructors to the Crossterm backend.
  • Add a demo for all backends using a shared UI and application state.
  • Add Ratio as a new variant of layout Constraint. It can be used to define exact ratios constraints.

Breaking Changes

  • Add support for multiple modifiers on the same Style by changing Modifier from an enum to a bitflags struct.

So instead of writing:

let style = Style::default().add_modifier(Modifier::Italic);

one should use:

let style = Style::default().add_modifier(Modifier::ITALIC);
// or
let style = Style::default().add_modifier(Modifier::ITALIC | Modifier::BOLD);

Bug Fixes

  • Ensure correct behavior of the alternate screens with the Crossterm backend.
  • Fix out of bounds panic when two Buffer are merged.

v0.4.0 - 2019-02-03

Features

  • Add a new canvas shape: Rectangle.
  • Official support of Crossterm backend.
  • Make it possible to choose the divider between Tabs.
  • Add word wrapping on Paragraph.
  • The gauge widget accepts a ratio (f64 between 0 and 1) in addition of a percentage.

Breaking Changes

  • Upgrade to Rust 2018 edition.

Bug Fixes

  • Fix rendering of double-width characters.
  • Fix race condition on the size of the terminal and expose a size that is safe to use when drawing through Frame::size.
  • Prevent unsigned int overflow on large screens.

v0.3.0 - 2018-11-04

Features

  • Add experimental test backend

v0.3.0-beta.3 - 2018-09-24

Features

  • show_cursor is called when Terminal is dropped if the cursor is hidden.

v0.3.0-beta.2 - 2018-09-23

Breaking Changes

  • Remove custom termion backends. This is motivated by the fact that termion structs are meant to be combined/wrapped to provide additional functionalities to the terminal (e.g AlternateScreen, Mouse support, ...). Thus providing exclusive types do not make a lot of sense and give a false hint that additional features cannot be used together. The recommended approach is now to create your own version of stdout:
let stdout = io::stdout().into_raw_mode()?;
let stdout = MouseTerminal::from(stdout);
let stdout = AlternateScreen::from(stdout);

and then to create the corresponding termion backend:

let backend = TermionBackend::new(stdout);

The resulting code is more verbose but it works with all combinations of additional termion features.

v0.3.0-beta.1 - 2018-09-08

Breaking Changes

  • Replace Item by a generic and flexible Text that can be used in both Paragraph and List widgets.
  • Remove unnecessary borrows on Style.

v0.3.0-beta.0 - 2018-09-04

Features

  • Add a basic Crossterm backend

Breaking Changes

  • Remove Group and introduce Layout in its place
    • Terminal is no longer required to compute a layout
    • Size has been renamed Constraint
  • Widgets are rendered on a Frame instead of a Terminal in order to avoid mixing draw and render calls
  • draw on Terminal expects a closure where the UI is built by rendering widgets on the given Frame
  • Update Widget trait
    • draw takes area by value
    • render takes a Frame instead of a Terminal
  • All widgets use the consumable builder pattern
  • SelectableList can have no selected item and the highlight symbol is hidden in this case
  • Remove markup language inside Paragraph. Paragraph now expects an iterator of Text items

v0.2.3 - 2018-06-09

Features

  • Add start_corner option for List
  • Add more text alignment options for Paragraph

v0.2.2 - 2018-05-06

Features

  • Terminal implements Debug

Breaking Changes

  • Use FnOnce instead of FnMut in Group::render

v0.2.1 - 2018-04-01

Features

  • Add AlternateScreenBackend in termion backend
  • Add TermionBackend::with_stdout in order to let an user of the library provides its own termion struct
  • Add tests and documentation for Buffer::pos_of
  • Remove leading whitespaces when wrapping text

Bug Fixes

  • Fix debug_assert in Buffer::pos_of
  • Pass the style of SelectableList to the underlying List
  • Fix missing character when wrapping text
  • Fix panic when specifying layout constraints

v0.2.0 - 2017-12-26

Features

  • Add MouseBackend in termion backend to handle scroll and mouse events
  • Add generic Item for items in a List
  • Drop log4rs as a dev-dependencies in favor of stderrlog

Breaking Changes

  • Rename TermionBackend to RawBackend (to distinguish it from the MouseBackend)
  • Generic parameters for List to allow passing iterators as items
  • Generic parameters for Table to allow using iterators as rows and header
  • Generic parameters for Tabs
  • Rename border bitflags to Borders