Enum FontSize 

pub enum FontSize {
    Pt(f32),
    Px(f32),
}

A font size with an explicit unit.

In TOML presets, this appears as either size_pt (typographic points) or size_px (logical pixels). Serde mapping is handled by the parent struct (FontSpec, TextScaleEntry) — FontSize itself has no Serialize/Deserialize impl.

During validation, all FontSize values are converted to logical pixels via FontSize::to_logical_px(dpi), producing a plain f32 for the resolved model.

Variants

Pt(f32)

Typographic points (1/72 inch). Used by platform presets where the OS reports font sizes in points (KDE, GNOME, Windows). Converted to px during validation: px = pt * dpi / 72.

Px(f32)

Logical pixels. Used by community/non-platform presets where font sizes are hand-authored in pixels.

Implementations

impl FontSize

pub fn to_logical_px(self, dpi: f32) -> f32

Convert to logical pixels.

• Pt(v) -> v * dpi / 72.0 (DPI matters)
• Px(v) -> v (already logical pixels, DPI ignored)

The name to_logical_px makes the asymmetry explicit: Px values are already in logical pixels, so the DPI parameter has no effect.

Examples

use native_theme::theme::FontSize;

// Pt branch: DPI affects the result
let pt_size = FontSize::Pt(10.0);
assert_eq!(pt_size.to_logical_px(96.0), 10.0 * 96.0 / 72.0);
assert_eq!(pt_size.to_logical_px(72.0), 10.0); // identity at 72 DPI

// Px branch: DPI is ignored, value returned unchanged
let px_size = FontSize::Px(14.0);
assert_eq!(px_size.to_logical_px(96.0), 14.0);
assert_eq!(px_size.to_logical_px(144.0), 14.0); // same regardless of DPI

pub fn raw(self) -> f32

Return the raw numeric value regardless of unit. Used during inheritance to compute derived values (e.g. line_height) before unit conversion.

pub fn is_pt(self) -> bool

True when the value is in typographic points.

Trait Implementations

impl Clone for FontSize

fn clone(&self) -> FontSize

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FontSize

impl Debug for FontSize

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

Formats the value using the given formatter.

impl Default for FontSize

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for FontSize

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FontSize