Struct kas_core::layout::RowPositionSolver

source · [−]

pub struct RowPositionSolver<D: Directional> { /* private fields */ }

Expand description

Allows efficient implementations of draw / event handlers based on the layout representation.

This is only applicable where child widgets are contained in a slice of type W: Widget (which may be Box<dyn Widget>). In other cases, the naive implementation (test all items) must be used.

Implementations

source

impl<D: Directional> RowPositionSolver<D>

source

pub fn new(direction: D) -> Self

Construct with given directionality

source

pub fn find_child_index<W: Widget>(
 self,
 widgets: &[W],
 coord: Coord
) -> Option<usize>

Find the child containing the given coordinates

Returns None when the coordinates lie within the margin area or outside of the parent widget.

source

pub fn find_child<W: Widget>(self, widgets: &[W], coord: Coord) -> Option<&W>

Find the child containing the given coordinates

Returns None when the coordinates lie within the margin area or outside of the parent widget.

source

pub fn find_child_mut<W: Widget>(
 self,
 widgets: &mut [W],
 coord: Coord
) -> Option<&mut W>

Find the child containing the given coordinates

Returns None when the coordinates lie within the margin area or outside of the parent widget.

source

pub fn for_children<W: Widget, F: FnMut(&mut W)>(
 self,
 widgets: &mut [W],
 rect: Rect,
 f: F
)

Call f on each child intersecting the given rect

Trait Implementations

source

impl<D: Clone + Directional> Clone for RowPositionSolver<D>

source

fn clone(&self) -> RowPositionSolver<D>

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

source

impl<D: Debug + Directional> Debug for RowPositionSolver<D>

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

source

impl<D: Copy + Directional> Copy for RowPositionSolver<D>

Auto Trait Implementations

impl<D> RefUnwindSafe for RowPositionSolver<D>where
D: RefUnwindSafe,

impl<D> Send for RowPositionSolver<D>where
D: Send,

impl<D> Sync for RowPositionSolver<D>where
D: Sync,

impl<D> Unpin for RowPositionSolver<D>where
D: Unpin,

impl<D> UnwindSafe for RowPositionSolver<D>where
D: UnwindSafe,

Blanket Implementations

source

impl<T> Any for Twhere
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<S, T> Cast<T> for Swhere
T: Conv<S>,

source

fn cast(self) -> T

Cast from Self to T Read more

source

fn try_cast(self) -> Result<T, Error>

Try converting from Self to T Read more

source

impl<S, T> CastApprox<T> for Swhere
T: ConvApprox<S>,

source

fn try_cast_approx(self) -> Result<T, Error>

Try approximate conversion from Self to T Read more

source

fn cast_approx(self) -> T

Cast approximately from Self to T Read more

source

impl<S, T> CastFloat<T> for Swhere
T: ConvFloat<S>,

source

fn cast_trunc(self) -> T

Cast to integer, truncating Read more

source

fn cast_nearest(self) -> T

Cast to the nearest integer Read more

source

fn cast_floor(self) -> T

Cast the floor to an integer Read more

source

fn cast_ceil(self) -> T

Cast the ceiling to an integer Read more

source

fn try_cast_trunc(self) -> Result<T, Error>

Try converting to integer with truncation Read more

source

fn try_cast_nearest(self) -> Result<T, Error>

Try converting to the nearest integer Read more

source

fn try_cast_floor(self) -> Result<T, Error>

Try converting the floor to an integer Read more

source

fn try_cast_ceil(self) -> Result<T, Error>

Try convert the ceiling to an integer Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct kas_core::layout::RowPositionSolver

Implementations

impl<D: Directional> RowPositionSolver<D>

pub fn new(direction: D) -> Self

pub fn find_child_index<W: Widget>( self, widgets: &[W], coord: Coord) -> Option<usize>

pub fn find_child<W: Widget>(self, widgets: &[W], coord: Coord) -> Option<&W>

pub fn find_child_mut<W: Widget>( self, widgets: &mut [W], coord: Coord) -> Option<&mut W>

pub fn for_children<W: Widget, F: FnMut(&mut W)>( self, widgets: &mut [W], rect: Rect, f: F)

Trait Implementations

impl<D: Clone + Directional> Clone for RowPositionSolver<D>

fn clone(&self) -> RowPositionSolver<D>

fn clone_from(&mut self, source: &Self)

impl<D: Debug + Directional> Debug for RowPositionSolver<D>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<D: Copy + Directional> Copy for RowPositionSolver<D>

Auto Trait Implementations

impl<D> RefUnwindSafe for RowPositionSolver<D>where D: RefUnwindSafe,

impl<D> Send for RowPositionSolver<D>where D: Send,

impl<D> Sync for RowPositionSolver<D>where D: Sync,

impl<D> Unpin for RowPositionSolver<D>where D: Unpin,

impl<D> UnwindSafe for RowPositionSolver<D>where D: UnwindSafe,

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<S, T> Cast<T> for Swhere T: Conv<S>,

fn cast(self) -> T

fn try_cast(self) -> Result<T, Error>

impl<S, T> CastApprox<T> for Swhere T: ConvApprox<S>,

fn try_cast_approx(self) -> Result<T, Error>

fn cast_approx(self) -> T

impl<S, T> CastFloat<T> for Swhere T: ConvFloat<S>,

fn cast_trunc(self) -> T

fn cast_nearest(self) -> T

fn cast_floor(self) -> T

fn cast_ceil(self) -> T

fn try_cast_trunc(self) -> Result<T, Error>

fn try_cast_nearest(self) -> Result<T, Error>

fn try_cast_floor(self) -> Result<T, Error>

fn try_cast_ceil(self) -> Result<T, Error>

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub fn find_child_index<W: Widget>(
self,
widgets: &[W],
coord: Coord
) -> Option<usize>

pub fn find_child_mut<W: Widget>(
self,
widgets: &mut [W],
coord: Coord
) -> Option<&mut W>

pub fn for_children<W: Widget, F: FnMut(&mut W)>(
self,
widgets: &mut [W],
rect: Rect,
f: F
)

impl<D> RefUnwindSafe for RowPositionSolver<D>where
D: RefUnwindSafe,

impl<D> Send for RowPositionSolver<D>where
D: Send,

impl<D> Sync for RowPositionSolver<D>where
D: Sync,

impl<D> Unpin for RowPositionSolver<D>where
D: Unpin,

impl<D> UnwindSafe for RowPositionSolver<D>where
D: UnwindSafe,

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<S, T> Cast<T> for Swhere
T: Conv<S>,

impl<S, T> CastApprox<T> for Swhere
T: ConvApprox<S>,

impl<S, T> CastFloat<T> for Swhere
T: ConvFloat<S>,

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,