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use super::endorse;
use crate::buffer::{fragment::Fragment, Cell};
use std::{
fmt,
ops::{Deref, DerefMut},
};
/// Contains a group of fragments that are touching each other
/// The purpose of Contacts is to group fragments together
#[derive(Debug, PartialOrd, PartialEq, Ord, Eq, Clone)]
pub struct Contacts(pub Vec<Fragment>);
impl AsRef<Vec<Fragment>> for Contacts {
fn as_ref(&self) -> &Vec<Fragment> {
&self.0
}
}
impl AsMut<Vec<Fragment>> for Contacts {
fn as_mut(&mut self) -> &mut Vec<Fragment> {
&mut self.0
}
}
impl Contacts {
pub(crate) fn new(fragment: Fragment) -> Self {
Contacts(vec![fragment])
}
/// Check if any fragment can be group with any of the other fragment
/// We use `.rev()` on this list of fragment since it has a high change of matching at the last
/// added fragment of the next fragments to be checked.
pub(crate) fn is_contacting_frag(&self, other_frag: &Fragment) -> bool {
self.as_ref()
.iter()
.rev()
.any(|frag| frag.is_contacting(other_frag))
}
pub(crate) fn is_contacting(&self, other: &Self) -> bool {
other
.as_ref()
.iter()
.any(|other_frag| self.is_contacting_frag(other_frag))
}
/// Endorse if the fragments in this group
/// can be:
/// - rect
/// - rounded_rect
pub(crate) fn endorse_rects(&self) -> Option<Fragment> {
if let Some(rect) = endorse::endorse_rect(self.as_ref()) {
Some(rect.into())
} else if let Some(rounded_rect) = endorse::endorse_rounded_rect(self.as_ref()) {
Some(rounded_rect.into())
} else {
None
}
}
pub(crate) fn absolute_position(&self, cell: Cell) -> Self {
Contacts(
self.as_ref()
.iter()
.map(|frag| frag.absolute_position(cell))
.collect(),
)
}
}
impl fmt::Display for Contacts {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
for frag in self.as_ref().iter() {
writeln!(f, "\t{}", frag)?;
}
Ok(())
}
}
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