pub enum Align {
Min,
Center,
Max,
}
Expand description
left/center/right or top/center/bottom alignment for e.g. anchors and layouts.
Variants
Min
Left or top.
Center
Horizontal or vertical center.
Max
Right or bottom.
Implementations
sourceimpl Align
impl Align
sourcepub fn align_size_within_range(
self,
size: f32,
range: RangeInclusive<f32>
) -> RangeInclusive<f32>
pub fn align_size_within_range(
self,
size: f32,
range: RangeInclusive<f32>
) -> RangeInclusive<f32>
Returns a range of given size within a specified range.
If the requested size
is bigger than the size of range
, then the returned
range will not fit into the available range
. The extra space will be allocated
from:
Align | Side |
---|---|
Min | right (end) |
Center | both |
Max | left (start) |
Examples
use std::f32::{INFINITY, NEG_INFINITY};
use emath::Align::*;
// The size is smaller than a range
assert_eq!(Min .align_size_within_range(2.0, 10.0..=20.0), 10.0..=12.0);
assert_eq!(Center.align_size_within_range(2.0, 10.0..=20.0), 14.0..=16.0);
assert_eq!(Max .align_size_within_range(2.0, 10.0..=20.0), 18.0..=20.0);
// The size is bigger than a range
assert_eq!(Min .align_size_within_range(20.0, 10.0..=20.0), 10.0..=30.0);
assert_eq!(Center.align_size_within_range(20.0, 10.0..=20.0), 5.0..=25.0);
assert_eq!(Max .align_size_within_range(20.0, 10.0..=20.0), 0.0..=20.0);
// The size is infinity, but range is finite - a special case of a previous example
assert_eq!(Min .align_size_within_range(INFINITY, 10.0..=20.0), 10.0..=INFINITY);
assert_eq!(Center.align_size_within_range(INFINITY, 10.0..=20.0), NEG_INFINITY..=INFINITY);
assert_eq!(Max .align_size_within_range(INFINITY, 10.0..=20.0), NEG_INFINITY..=20.0);
The infinity-sized ranges can produce a surprising results, if the size is also infinity, use such ranges with carefully!
use std::f32::{INFINITY, NEG_INFINITY};
use emath::Align::*;
// Allocating a size aligned for infinity bound will lead to empty ranges!
assert_eq!(Min .align_size_within_range(2.0, 10.0..=INFINITY), 10.0..=12.0);
assert_eq!(Center.align_size_within_range(2.0, 10.0..=INFINITY), INFINITY..=INFINITY);// (!)
assert_eq!(Max .align_size_within_range(2.0, 10.0..=INFINITY), INFINITY..=INFINITY);// (!)
assert_eq!(Min .align_size_within_range(2.0, NEG_INFINITY..=20.0), NEG_INFINITY..=NEG_INFINITY);// (!)
assert_eq!(Center.align_size_within_range(2.0, NEG_INFINITY..=20.0), NEG_INFINITY..=NEG_INFINITY);// (!)
assert_eq!(Max .align_size_within_range(2.0, NEG_INFINITY..=20.0), 18.0..=20.0);
// The infinity size will always return the given range if it has at least one infinity bound
assert_eq!(Min .align_size_within_range(INFINITY, 10.0..=INFINITY), 10.0..=INFINITY);
assert_eq!(Center.align_size_within_range(INFINITY, 10.0..=INFINITY), 10.0..=INFINITY);
assert_eq!(Max .align_size_within_range(INFINITY, 10.0..=INFINITY), 10.0..=INFINITY);
assert_eq!(Min .align_size_within_range(INFINITY, NEG_INFINITY..=20.0), NEG_INFINITY..=20.0);
assert_eq!(Center.align_size_within_range(INFINITY, NEG_INFINITY..=20.0), NEG_INFINITY..=20.0);
assert_eq!(Max .align_size_within_range(INFINITY, NEG_INFINITY..=20.0), NEG_INFINITY..=20.0);
Trait Implementations
sourceimpl<'de> Deserialize<'de> for Align
impl<'de> Deserialize<'de> for Align
sourcefn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl Copy for Align
impl Eq for Align
impl StructuralEq for Align
impl StructuralPartialEq for Align
Auto Trait Implementations
impl RefUnwindSafe for Align
impl Send for Align
impl Sync for Align
impl Unpin for Align
impl UnwindSafe for Align
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more