Struct Grid 

pub struct Grid {
    pub columns: Vec<GridTrack>,
    pub rows: Vec<GridTrack>,
    pub column_gap: f32,
    pub row_gap: f32,
}

A layout engine that computes coordinates for children positioned in a 2D grid.

Fields

columns: Vec<GridTrack>

Column track sizing rules.

rows: Vec<GridTrack>

Row track sizing rules.

column_gap: f32

Empty space between columns.

row_gap: f32

Empty space between rows.

Implementations

impl Grid

pub fn new( columns: Vec<GridTrack>, rows: Vec<GridTrack>, column_gap: f32, row_gap: f32, ) -> Self

Creates a new Grid layout engine.

pub fn compute_layout_rects( &self, bounds: Rect, subviews: &[&dyn LayoutView], placements: &[Option<GridPlacement>], cache: &mut LayoutCache, ) -> Vec<Rect>

Computes the rects for children based on track sizing and grid placements.

pub fn compute_layout_rects_incremental( &self, bounds: Rect, container_hash: u64, subviews: &[&dyn LayoutView], placements: &[Option<GridPlacement>], cache: &mut LayoutCache, ) -> Vec<Rect>

Trait Implementations

impl LayoutView for Grid

fn size_that_fits( &self, proposal: SizeProposal, _subviews: &[&dyn LayoutView], _cache: &mut LayoutCache, ) -> Size

Propose a size for this view given the available space

fn place_subviews( &self, bounds: Rect, subviews: &mut [&mut dyn LayoutView], cache: &mut LayoutCache, )

Place subviews within the given bounds

fn flex_weight(&self) -> f32

Returns the flex weight of this view (default is 0.0, which means fixed/intrinsic)

fn view_hash(&self) -> u64

Returns a persistent unique identifier for this view to enable Layout View Transitions. Return 0 (default) to disable layout animations for this node.

fn changed(&self) -> bool

Return true when this view’s layout may have changed since the last pass.

fn debug_layout(&self, indent: usize) -> String

Return a debug representation of this layout subtree. The indent parameter controls the indentation level for nested display.