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use super::*;
/// A container with a horizontal and vertical component.
#[derive(Debug, Default, Copy, Clone, Eq, PartialEq)]
pub struct Spec<T> {
/// The horizontal component.
pub horizontal: T,
/// The vertical component.
pub vertical: T,
}
impl<T> Spec<T> {
/// Create a new instance from the two components.
pub fn new(horizontal: T, vertical: T) -> Self {
Self { horizontal, vertical }
}
/// Create a new instance with two equal components.
pub fn uniform(value: T) -> Self
where
T: Clone,
{
Self {
horizontal: value.clone(),
vertical: value,
}
}
}
impl Spec<Length> {
/// The zero value.
pub const ZERO: Self = Self {
horizontal: Length::ZERO,
vertical: Length::ZERO,
};
/// Convert to a point.
pub fn to_point(self) -> Point {
Point::new(self.horizontal, self.vertical)
}
/// Convert to a size.
pub fn to_size(self) -> Size {
Size::new(self.horizontal, self.vertical)
}
}
impl<T> Get<SpecAxis> for Spec<T> {
type Component = T;
fn get(self, axis: SpecAxis) -> T {
match axis {
SpecAxis::Horizontal => self.horizontal,
SpecAxis::Vertical => self.vertical,
}
}
fn get_mut(&mut self, axis: SpecAxis) -> &mut T {
match axis {
SpecAxis::Horizontal => &mut self.horizontal,
SpecAxis::Vertical => &mut self.vertical,
}
}
}
impl<T> Switch for Spec<T> {
type Other = Gen<T>;
fn switch(self, dirs: LayoutDirs) -> Self::Other {
match dirs.main.axis() {
SpecAxis::Horizontal => Gen::new(self.horizontal, self.vertical),
SpecAxis::Vertical => Gen::new(self.vertical, self.horizontal),
}
}
}
/// The two specific layouting axes.
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum SpecAxis {
/// The vertical layouting axis.
Vertical,
/// The horizontal layouting axis.
Horizontal,
}
impl SpecAxis {
/// The other axis.
pub fn other(self) -> Self {
match self {
Self::Horizontal => Self::Vertical,
Self::Vertical => Self::Horizontal,
}
}
}
impl Switch for SpecAxis {
type Other = GenAxis;
fn switch(self, dirs: LayoutDirs) -> Self::Other {
if self == dirs.main.axis() {
GenAxis::Main
} else {
debug_assert_eq!(self, dirs.cross.axis());
GenAxis::Cross
}
}
}
impl Display for SpecAxis {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
f.pad(match self {
Self::Vertical => "vertical",
Self::Horizontal => "horizontal",
})
}
}
|
