Struct ItemHints 

pub struct ItemHints {

    pub width: Dimension,
    pub height: Dimension,
    pub flex_grow: u8,
    pub self_align: Option<FlexAlign>,
    pub col_pos: u16,
    pub col_span: u16,
    pub row_pos: u16,
    pub row_span: u16,
    pub col_align: GridAlign,
    pub row_align: GridAlign,
    pub min_width: Option<i32>,
    pub max_width: Option<i32>,
    pub min_height: Option<i32>,
    pub max_height: Option<i32>,
}

Per-item hints used by the parent container’s layout engine (LPAR-10 §5.D / §5.E).

A node carries these hints via LayoutRole::Item. Fields are consumed by whichever engine the parent container runs.

Fields

width: Dimension

Preferred width dimension for this item.

Dimension::Px(0) means “use the widget’s intrinsic width”.

height: Dimension

Preferred height dimension for this item.

Dimension::Px(0) means “use the widget’s intrinsic height”.

flex_grow: u8

Flex grow factor.

0 = no growth (default). Positive values cause the item to absorb a proportional share of any remaining main-axis free space after all fixed/percent items are placed (lv_obj_set_flex_grow analogue).

Must be 0 when the container is content-sized on the main axis (free space is undefined in that case — treated as 0 silently per LPAR-10 §5.D).

self_align: Option<FlexAlign>

Per-item cross-axis alignment override (align_self analogue).

None inherits the container’s FlexConfig::cross_align.

col_pos: u16

Explicit column position (0-based).

col_span: u16

Column span (minimum 1).

row_pos: u16

Explicit row position (0-based).

row_span: u16

Row span (minimum 1).

col_align: GridAlign

Per-item column alignment override inside its cell.

row_align: GridAlign

Per-item row alignment override inside its cell.

min_width: Option<i32>

Minimum width in pixels (None = no constraint).

max_width: Option<i32>

Maximum width in pixels (None = no constraint).

min_height: Option<i32>

Minimum height in pixels (None = no constraint).

max_height: Option<i32>

Maximum height in pixels (None = no constraint).

Trait Implementations

impl Clone for ItemHints

fn clone(&self) -> ItemHints

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ItemHints

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

Formats the value using the given formatter.

impl Default for ItemHints

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ItemHints

impl PartialEq for ItemHints

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ItemHints