Struct MacCollectionViewFlowLayout 

pub struct MacCollectionViewFlowLayout {
    pub item_size: Vec2,
    pub minimum_line_spacing: f32,
    pub minimum_interitem_spacing: f32,
    pub section_inset: MacInsets,
}

Flow layout engine matching AppKit NSCollectionViewFlowLayout.

Fields

item_size: Vec2

Nominal item dimensions in points ($50.0 \times 50.0,\text{pt}$).

minimum_line_spacing: f32

Vertical line spacing between rows ($10.0,\text{pt}$).

minimum_interitem_spacing: f32

Horizontal interitem spacing between columns ($10.0,\text{pt}$).

section_inset: MacInsets

Outer section padding insets ($0.0,\text{pt}$).

Implementations

impl MacCollectionViewFlowLayout

pub fn compute_column_count(&self, available_width: f32) -> usize

Computes column count fitting within available viewport width.

Formula: $C = \lfloor (W_{\text{viewport}} + S_{\text{item}}) / (W_{\text{item}} + S_{\text{item}}) \rfloor$.

pub fn compute_item_rect( &self, origin: Pos2, index: usize, columns: usize, ) -> Rect

Computes spatial 2D bounding rect for an item index.

Trait Implementations

impl Clone for MacCollectionViewFlowLayout

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 MacCollectionViewFlowLayout

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

Formats the value using the given formatter.

impl Default for MacCollectionViewFlowLayout

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for MacCollectionViewFlowLayout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MacCollectionViewFlowLayout