Module scale

Device-pixel ratios and logical-to-physical snapping helpers.

Examples

use ailloli_ui_core::math::scale::{to_physical_f32, Scale};
assert_eq!(to_physical_f32(2.0, Scale::new(2.0)), 4.0);

Device-pixel ratios and deterministic logical-to-physical snapping.

Structs

PhysicalRectI32

Rectangle in physical pixel integers (snapped bounds).

Scale

Device pixel ratio (DPR) for logical ↔ physical conversion.

Functions

snap_f32_to_physical_px

Rounds a logical coordinate to the nearest physical integer pixel.

snap_point_to_physical

Snaps both coordinates of a logical point to physical integer pixels.

snap_rect_to_physical

Snaps both logical rectangle edges and derives a non-negative physical size.

snap_size_to_physical

Snaps logical width and height independently to physical integer pixels.

to_logical_f32

Converts physical pixels to logical units with physical / dpr.

to_physical_f32

Converts a logical length to physical pixels with logical * dpr.