Struct LayoutHints 

pub struct LayoutHints {
    pub base_font_size_px: f32,
    pub min_font_size_px: f32,
    pub max_font_size_px: f32,
    pub min_line_height: f32,
    pub max_line_height: f32,
    pub text_scale: f32,
}

Safe layout hint clamps for text style normalization.

Fields

base_font_size_px: f32

Default base font size in pixels.

min_font_size_px: f32

Lower clamp for effective font size.

max_font_size_px: f32

Upper clamp for effective font size.

min_line_height: f32

Lower clamp for effective line-height multiplier.

max_line_height: f32

Upper clamp for effective line-height multiplier.

text_scale: f32

Global text scale multiplier applied after CSS size resolution.

This lets reader UIs scale books even when EPUB CSS uses fixed px sizes.

Trait Implementations

impl Clone for LayoutHints

fn clone(&self) -> LayoutHints

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutHints

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

Formats the value using the given formatter.

impl Default for LayoutHints

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for LayoutHints

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for LayoutHints

impl StructuralPartialEq for LayoutHints