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-org/ratatui/issues/820
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-org/ratatui/issues/800
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`.
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.
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-org/ratatui/issues/798
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)`
---------
Co-authored-by: Josh McKinney <joshka@users.noreply.github.com>
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-org/ratatui/assets/1813121/756bb50e-f8c3-4eec-abe8-ce358058a526">
<img width="759" alt="image"
src="https://github.com/ratatui-org/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());
}
```
Issue: https://github.com/ratatui-org/ratatui/issues/816
This PR adds:
`std::fmt::Display` for `Text`, `Line`, and `Span` structs.
Display implementation displays actual content while ignoring style.
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-org/ratatui/assets/1813121/30541efc-ecbe-4e28-b4ef-4d5f1dc63fec"/>
---------
Co-authored-by: Dheepak Krishnamurthy <me@kdheepak.com>
```shell
cargo run --example demo2 --features="crossterm widget-calendar"
```
Press `d` to activate destroy mode and Enjoy!
Vendors a copy of tui-big-text to allow us to use it in the demo.
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-org/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-org/ratatui/assets/1813121/c8716c59-493f-4631-add5-feecf4bd4e06
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);
```
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);
```
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.
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<_>`.
In https://github.com/ratatui-org/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-org/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.
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(),
]));
```
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();
```
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
