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|
use crate::{
grid::config::ColoredConfig,
grid::config::Entity,
settings::{CellOption, TableOption},
};
/// `TrimStrategy` determines if it's allowed to use empty space while doing [`Alignment`].
///
/// # Examples
///
/// ```
/// use tabled::{
/// Table,
/// settings::{
/// Style, Modify, Alignment, object::Segment,
/// formatting::{TrimStrategy, AlignmentStrategy}
/// }
/// };
///
/// let mut table = Table::new(&[" Hello World"]);
/// table
/// .with(Style::modern())
/// .with(
/// Modify::new(Segment::all())
/// .with(Alignment::left())
/// .with(TrimStrategy::Horizontal)
/// );
///
/// // Note that nothing was changed exactly.
///
/// assert_eq!(
/// table.to_string(),
/// "┌────────────────┐\n\
/// │ &str │\n\
/// ├────────────────┤\n\
/// │ Hello World │\n\
/// └────────────────┘"
/// );
///
/// // To trim lines you would need also set [`AlignmentStrategy`].
/// table.with(Modify::new(Segment::all()).with(AlignmentStrategy::PerLine));
///
/// assert_eq!(
/// table.to_string(),
/// "┌────────────────┐\n\
/// │ &str │\n\
/// ├────────────────┤\n\
/// │ Hello World │\n\
/// └────────────────┘"
/// );
///
/// let mut table = Table::new(&[" \n\n\n Hello World"]);
/// table
/// .with(Style::modern())
/// .with(
/// Modify::new(Segment::all())
/// .with(Alignment::center())
/// .with(Alignment::top())
/// .with(TrimStrategy::Vertical)
/// );
///
/// assert_eq!(
/// table.to_string(),
/// "┌─────────────────┐\n\
/// │ &str │\n\
/// ├─────────────────┤\n\
/// │ Hello World │\n\
/// │ │\n\
/// │ │\n\
/// │ │\n\
/// └─────────────────┘"
/// );
/// ```
///
/// [`Alignment`]: crate::settings::Alignment
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub enum TrimStrategy {
/// Allow vertical trim.
Vertical,
/// Allow horizontal trim.
Horizontal,
/// Allow horizontal and vertical trim.
Both,
/// Doesn't allow any trim.
None,
}
impl<R> CellOption<R, ColoredConfig> for TrimStrategy {
fn change(self, _: &mut R, cfg: &mut ColoredConfig, entity: Entity) {
let mut formatting = *cfg.get_formatting(entity);
// todo: could be changed to be a struct an enum like consts in `impl` block.
match self {
TrimStrategy::Vertical => {
formatting.vertical_trim = true;
}
TrimStrategy::Horizontal => {
formatting.horizontal_trim = true;
}
TrimStrategy::Both => {
formatting.vertical_trim = true;
formatting.horizontal_trim = true;
}
TrimStrategy::None => {
formatting.vertical_trim = false;
formatting.horizontal_trim = false;
}
}
cfg.set_formatting(entity, formatting);
}
}
impl<R, D> TableOption<R, D, ColoredConfig> for TrimStrategy {
fn change(self, records: &mut R, cfg: &mut ColoredConfig, _: &mut D) {
<Self as CellOption<_, _>>::change(self, records, cfg, Entity::Global)
}
}
|
