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use crate::{
grid::records::{ExactRecords, Records},
settings::{object::Object, CellOption, Settings, TableOption},
};
/// Modify structure provide an abstraction, to be able to apply
/// a set of [`CellOption`]s to the same object.
///
/// Be aware that the settings are applied all to a cell at a time.
/// So sometimes you may need to make a several calls of [`Modify`] in order to achieve the desired affect.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct Modify<O> {
obj: O,
}
impl<O> Modify<O> {
/// Creates a new [`Modify`] without any options.
pub const fn new(obj: O) -> Self {
Self { obj }
}
/// A function which combines together [`Modify::new`] and [`Modify::with`] calls.
pub const fn list<M>(obj: O, next: M) -> ModifyList<O, M> {
ModifyList {
obj,
modifiers: next,
}
}
/// It's a generic function which stores a [`CellOption`].
///
/// IMPORTANT:
/// The function *doesn't* changes a [`Table`].
/// [`Table`] will be changed only after passing [`Modify`] object to [`Table::with`].
///
/// [`Table`]: crate::Table
/// [`Table::with`]: crate::Table::with
pub fn with<M>(self, next: M) -> ModifyList<O, M> {
ModifyList {
obj: self.obj,
modifiers: next,
}
}
}
/// This is a container of [`CellOption`]s which are applied to a set [`Object`].
#[derive(Debug)]
pub struct ModifyList<O, S> {
obj: O,
modifiers: S,
}
impl<O, M1> ModifyList<O, M1> {
/// With a generic function which stores a [`CellOption`].
///
/// IMPORTANT:
/// The function *doesn't* changes a [`Table`].
/// [`Table`] will be changed only after passing [`Modify`] object to [`Table::with`].
///
/// [`Table`]: crate::Table
/// [`Table::with`]: crate::Table::with
pub fn with<M2>(self, next: M2) -> ModifyList<O, Settings<M1, M2>> {
ModifyList {
obj: self.obj,
modifiers: Settings::new(self.modifiers, next),
}
}
}
impl<O, M, R, D, C> TableOption<R, D, C> for ModifyList<O, M>
where
O: Object<R>,
M: CellOption<R, C> + Clone,
R: Records + ExactRecords,
{
fn change(self, records: &mut R, cfg: &mut C, _: &mut D) {
for entity in self.obj.cells(records) {
self.modifiers.clone().change(records, cfg, entity);
}
}
}
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