Struct Positioner 

pub struct Positioner {
    pub size: Option<(u32, u32)>,
    pub size_limits: Limits,
    pub anchor_rect: Rectangle<i32>,
    pub anchor: Anchor,
    pub gravity: Gravity,
    pub constraint_adjustment: u32,
    pub offset: (i32, i32),
    pub reactive: bool,
    pub window_geometry: Option<(i32, i32, i32, i32)>,
    pub shadow_padding: u32,
}

Available on Unix and neither Android nor iOS nor macOS only.

Positioner configuration for popup placement.

Fields

size: Option<(u32, u32)>

Size of the popup (if None, will be auto-sized)

size_limits: Limits

Size limits for auto-sizing

anchor_rect: Rectangle<i32>

Rectangle on the parent surface to anchor to

anchor: Anchor

Where on the anchor_rect to attach

gravity: Gravity

Direction the popup extends from the anchor point

constraint_adjustment: u32

How to adjust if popup would be constrained

offset: (i32, i32)

Offset from the calculated position

reactive: bool

Whether popup should reposition when parent moves

window_geometry: Option<(i32, i32, i32, i32)>

Window geometry (x, y, width, height) in logical pixels.

Tells the compositor which part of the surface is visible content (excluding shadows/decorations). The compositor uses this for constraint adjustment (SLIDE/FLIP) — only the geometry rect is kept on-screen, not the full surface.

shadow_padding: u32

Shadow padding in logical pixels.

When set and size is None (auto-sizing), iced will automatically compute window_geometry from the measured content size minus this padding on each side. This tells the compositor to only constrain the visible content area, not the shadow.

Trait Implementations

impl Clone for Positioner

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Positioner

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

Formats the value using the given formatter.

impl Default for Positioner

fn default() -> Self

Returns the “default value” for a type.

impl Hash for Positioner

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.