Struct LineHeightStyle 

pub struct LineHeightStyle {
    pub alignment: LineHeightAlignment,
    pub trim: LineHeightTrim,
    pub mode: LineHeightMode,
}

The line-height policy lives with the drawing-side text types, because a DrawScope has to be able to name it too: a run drawn through a canvas and a Text composable on the same screen must resolve their line boxes by the same rule, and the only style a draw scope can carry is the flat one from cranpose-ui-graphics. How a line of text sits inside the height it was given.

A style that names one is laid out by AOSP’s StaticLayout rule — whole-pixel metrics, a font that a short line height cannot shrink, and the odd pixel of leading below the baseline. A style that names none keeps the framework’s plain arithmetic: the box is exactly the requested height with the leading split evenly. The two disagree by a device pixel on most faces, so a screen that draws through a crate::DrawScope and composes Text in the same frame has to state the same policy on both or the two sets of rows will not line up.

Fields

alignment: LineHeightAlignment

trim: LineHeightTrim

mode: LineHeightMode

Trait Implementations

impl Clone for LineHeightStyle

fn clone(&self) -> LineHeightStyle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LineHeightStyle

impl Debug for LineHeightStyle

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

Formats the value using the given formatter.

impl Default for LineHeightStyle

fn default() -> LineHeightStyle

Returns the “default value” for a type.

impl Eq for LineHeightStyle

impl Hash for LineHeightStyle

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

where __H: Hasher,

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.

impl PartialEq for LineHeightStyle

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LineHeightStyle