Struct SliverGridRegularTileLayout 

pub struct SliverGridRegularTileLayout {
    pub cross_axis_count: i32,
    pub main_axis_stride: f64,
    pub cross_axis_stride: f64,
    pub child_main_axis_extent: f64,
    pub child_cross_axis_extent: f64,
    pub reverse_cross_axis: bool,
}

A SliverGridLayout that uses equally sized and spaced tiles.

Rather that providing a grid with a SliverGridLayout directly, you instead provide the grid a SliverGridDelegate, which can compute a SliverGridLayout given the current SliverConstraints.

This layout is used by SliverGridDelegateWithFixedCrossAxisCount and SliverGridDelegateWithMaxCrossAxisExtent.

Fields

cross_axis_count: i32

The number of children in the cross axis.

main_axis_stride: f64

The number of pixels from the leading edge of one tile to the leading edge of the next tile in the main axis.

cross_axis_stride: f64

The number of pixels from the leading edge of one tile to the leading edge of the next tile in the cross axis.

child_main_axis_extent: f64

The number of pixels from the leading edge of one tile to the trailing edge of the same tile in the main axis.

child_cross_axis_extent: f64

The number of pixels from the leading edge of one tile to the trailing edge of the same tile in the cross axis.

reverse_cross_axis: bool

Whether the children should be placed in the opposite order of increasing coordinates in the cross axis.

For example, if the cross axis is horizontal, the children are placed from left to right when reverse_cross_axis is false and from right to left when it is true.

Typically set to the return value of axis_direction_is_reversed applied to the SliverConstraints::cross_axis_direction.

Implementations

impl SliverGridRegularTileLayout

pub fn new( cross_axis_count: i32, main_axis_stride: f64, cross_axis_stride: f64, child_main_axis_extent: f64, child_cross_axis_extent: f64, reverse_cross_axis: bool, ) -> SliverGridRegularTileLayout

Creates a layout that uses equally sized and spaced tiles.

All of the arguments must not be negative. The cross_axis_count argument must be greater than zero.

Trait Implementations

impl Clone for SliverGridRegularTileLayout

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SliverGridRegularTileLayout

impl Debug for SliverGridRegularTileLayout

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

Formats the value using the given formatter.

impl SliverGridLayout for SliverGridRegularTileLayout

fn get_min_child_index_for_scroll_offset(&self, scroll_offset: f64) -> i32

The minimum child index that intersects with (or is after) this scroll offset.

fn get_max_child_index_for_scroll_offset(&self, scroll_offset: f64) -> i32

The maximum child index that intersects with (or is before) this scroll offset.

fn get_geometry_for_child_index(&self, index: i32) -> SliverGridGeometry

The size and position of the child with the given index.

fn compute_max_scroll_offset(&self, child_count: i32) -> f64

The scroll extent needed to fully display all the tiles if there are child_count children in total.