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|
//! This module contains object which can be used to limit a cell to a given width:
//!
//! - [`Truncate`] cuts a cell content to limit width.
//! - [`Wrap`] split the content via new lines in order to fit max width.
//! - [`Justify`] sets columns width to the same value.
//!
//! To set a a table width, a combination of [`Width::truncate`] or [`Width::wrap`] and [`Width::increase`] can be used.
//!
//! ## Example
//!
//! ```
//! use tabled::{Table, settings::Width};
//!
//! let table = Table::new(&["Hello World!"])
//! .with(Width::wrap(7))
//! .with(Width::increase(7))
//! .to_string();
//!
//! assert_eq!(
//! table,
//! concat!(
//! "+-----+\n",
//! "| &st |\n",
//! "| r |\n",
//! "+-----+\n",
//! "| Hel |\n",
//! "| lo |\n",
//! "| Wor |\n",
//! "| ld! |\n",
//! "+-----+",
//! )
//! );
//! ```
mod justify;
mod min_width;
mod truncate;
mod util;
mod width_list;
mod wrap;
use crate::settings::measurement::Measurement;
pub use self::{
justify::Justify,
min_width::MinWidth,
truncate::{SuffixLimit, Truncate},
width_list::WidthList,
wrap::Wrap,
};
/// Width allows you to set a min and max width of an object on a [`Table`]
/// using different strategies.
///
/// It also allows you to set a min and max width for a whole table.
///
/// You can apply a min and max strategy at the same time with the same value,
/// the value will be a total table width.
///
/// It is an abstract factory.
///
/// Beware that borders are not removed when you set a size value to very small.
/// For example if you set size to 0 the table still be rendered but with all content removed.
///
/// Also be aware that it doesn't changes [`Padding`] settings nor it considers them.
///
/// The function is color aware if a `color` feature is on.
///
/// ## Examples
///
/// ### Cell change
///
/// ```
/// use tabled::{Table, settings::{object::Segment, Width, Style, Modify}};
///
/// let data = ["Hello", "World", "!"];
///
/// let table = Table::new(&data)
/// .with(Style::markdown())
/// .with(Modify::new(Segment::all()).with(Width::truncate(3).suffix("...")));
/// ```
///
/// ### Table change
///
/// ```
/// use tabled::{Table, settings::Width};
///
/// let table = Table::new(&["Hello World!"]).with(Width::wrap(5));
/// ```
///
/// ### Total width
///
/// ```
/// use tabled::{Table, settings::Width};
///
/// let table = Table::new(&["Hello World!"])
/// .with(Width::wrap(5))
/// .with(Width::increase(5));
/// ```
///
/// [`Padding`]: crate::settings::Padding
/// [`Table`]: crate::Table
#[derive(Debug)]
pub struct Width;
impl Width {
/// Returns a [`Wrap`] structure.
pub fn wrap<W: Measurement<Width>>(width: W) -> Wrap<W> {
Wrap::new(width)
}
/// Returns a [`Truncate`] structure.
pub fn truncate<W: Measurement<Width>>(width: W) -> Truncate<'static, W> {
Truncate::new(width)
}
/// Returns a [`MinWidth`] structure.
pub fn increase<W: Measurement<Width>>(width: W) -> MinWidth<W> {
MinWidth::new(width)
}
/// Returns a [`Justify`] structure.
pub fn justify<W: Measurement<Width>>(width: W) -> Justify<W> {
Justify::new(width)
}
/// Create [`WidthList`] to set a table width to a constant list of column widths.
///
/// Notice if you provide a list with `.len()` smaller than `Table::count_columns` then it will have no affect.
///
/// Also notice that you must provide values bigger than or equal to a real content width, otherwise it may panic.
///
/// # Example
///
/// ```
/// use tabled::{Table, settings::Width};
///
/// let data = vec![
/// ("Some\ndata", "here", "and here"),
/// ("Some\ndata on a next", "line", "right here"),
/// ];
///
/// let table = Table::new(data)
/// .with(Width::list([20, 10, 12]))
/// .to_string();
///
/// assert_eq!(
/// table,
/// "+--------------------+----------+------------+\n\
/// | &str | &str | &str |\n\
/// +--------------------+----------+------------+\n\
/// | Some | here | and here |\n\
/// | data | | |\n\
/// +--------------------+----------+------------+\n\
/// | Some | line | right here |\n\
/// | data on a next | | |\n\
/// +--------------------+----------+------------+"
/// )
/// ```
pub fn list<I: IntoIterator<Item = usize>>(rows: I) -> WidthList {
WidthList::new(rows.into_iter().collect())
}
}
|
