Struct WindowPositioner 

#[non_exhaustive]
pub struct WindowPositioner {
    pub anchor: WindowAnchor,
    pub anchor_rect: (Position, Size),
    pub offset: Position,
    pub gravity: WindowGravity,
    pub constraint_adjustment: WindowConstraintAdjustment,
}

The positioner state backing a window’s anchor-based placement.

Set at window creation via WindowAttributes::with_positioner, and read/mutated at runtime through Window::positioner/Window::set_positioner. See those methods for platform-specific behavior, and WindowPositioner::default for the values used when WindowAttributes::with_positioner is never called.

The structure is based on the wayland structure. For more information see the wayland documentation XDG Positioner

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

anchor: WindowAnchor

The edge or corner of the anchor rect used to position the window relative to it.

Combined with gravity, this controls which corner/edge of the anchor rectangle the window is pinned to. Defaults to WindowAnchor::Center.

anchor_rect: (Position, Size)

The anchor rectangle the window is positioned relative to.

The Position is the top-left corner of the rectangle relative to the parent window’s content area, and the Size its dimensions. Defaults to a 1x1 rectangle at the content origin. Passing a WindowPositioner to WindowAttributes::with_positioner overrides the position value set with WindowAttributes::with_position.

offset: Position

The window’s position relative to the anchor rect. Defaults to no offset.

gravity: WindowGravity

The direction the window surface extends away from the anchor point.

Combined with anchor, this determines the final position of the window relative to its anchor rectangle. Defaults to WindowGravity::Center.

constraint_adjustment: WindowConstraintAdjustment

How the window should be repositioned when it would be constrained.

The flags in WindowConstraintAdjustment can be combined to allow sliding, flipping, and/or resizing the window independently on each axis. Defaults to no adjustment.

Implementations

impl WindowPositioner

pub fn new( anchor: WindowAnchor, anchor_rect: (Position, Size), offset: Position, gravity: WindowGravity, constraint_adjustment: WindowConstraintAdjustment, ) -> Self

Trait Implementations

impl Clone for WindowPositioner

fn clone(&self) -> WindowPositioner

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WindowPositioner

impl Debug for WindowPositioner

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

Formats the value using the given formatter.

impl Default for WindowPositioner

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for WindowPositioner

fn eq(&self, other: &WindowPositioner) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for WindowPositioner