slint/internal/core/lengths.rs
2022-06-04 13:40:50 +02:00

81 lines
2.5 KiB
Rust

// Copyright © SixtyFPS GmbH <info@slint-ui.com>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-commercial
use crate::Coord;
pub struct PhysicalPx;
pub type PhysicalLength = euclid::Length<i16, PhysicalPx>;
pub type PhysicalRect = euclid::Rect<i16, PhysicalPx>;
pub type PhysicalSize = euclid::Size2D<i16, PhysicalPx>;
pub type PhysicalPoint = euclid::Point2D<i16, PhysicalPx>;
pub struct LogicalPx;
pub type LogicalLength = euclid::Length<Coord, LogicalPx>;
pub type LogicalRect = euclid::Rect<Coord, LogicalPx>;
pub type LogicalPoint = euclid::Point2D<Coord, LogicalPx>;
pub type LogicalSize = euclid::Size2D<Coord, LogicalPx>;
pub type ScaleFactor = euclid::Scale<f32, LogicalPx, PhysicalPx>;
pub trait SizeLengths {
type LengthType;
fn width_length(&self) -> Self::LengthType;
fn height_length(&self) -> Self::LengthType;
}
impl<T: Copy, U> SizeLengths for euclid::Size2D<T, U> {
type LengthType = euclid::Length<T, U>;
fn width_length(&self) -> Self::LengthType {
euclid::Length::new(self.width)
}
fn height_length(&self) -> Self::LengthType {
euclid::Length::new(self.height)
}
}
pub trait PointLengths {
type LengthType;
fn x_length(&self) -> Self::LengthType;
fn y_length(&self) -> Self::LengthType;
}
impl<T: Copy, U> PointLengths for euclid::Point2D<T, U> {
type LengthType = euclid::Length<T, U>;
fn x_length(&self) -> Self::LengthType {
euclid::Length::new(self.x)
}
fn y_length(&self) -> Self::LengthType {
euclid::Length::new(self.y)
}
}
pub trait RectLengths {
type SizeType;
type LengthType;
fn size_length(&self) -> Self::SizeType;
fn width_length(&self) -> Self::LengthType;
fn height_length(&self) -> Self::LengthType;
}
impl<T: Copy, U> RectLengths for euclid::Rect<T, U> {
type LengthType = euclid::Length<T, U>;
type SizeType = euclid::Size2D<T, U>;
fn size_length(&self) -> Self::SizeType {
euclid::Size2D::new(self.size.width, self.size.height)
}
fn width_length(&self) -> Self::LengthType {
self.size_length().width_length()
}
fn height_length(&self) -> Self::LengthType {
self.size_length().height_length()
}
}
pub trait LogicalItemGeometry {
fn logical_geometry(self: core::pin::Pin<&Self>) -> LogicalRect;
}
impl<T: crate::items::Item> LogicalItemGeometry for T {
fn logical_geometry(self: core::pin::Pin<&Self>) -> LogicalRect {
LogicalRect::from_untyped(&self.geometry())
}
}