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|
macro_rules! gen_struct_from_to_impls {
($struct: ident, fields=($($field: ident),*)) => {
impl<Pixel> From<winit::dpi::$struct<Pixel>> for $struct<Pixel>
{
fn from(source: winit::dpi::$struct<Pixel>) -> Self
{
Self {
$($field: source.$field),*
}
}
}
impl<Pixel> From<$struct<Pixel>> for winit::dpi::$struct<Pixel>
{
fn from(source: $struct<Pixel>) -> Self
{
Self {
$($field: source.$field),*
}
}
}
};
}
macro_rules! gen_enum_from_to_impls {
($enum: ident, variants=($($variant: ident),*)) => {
impl From<winit::dpi::$enum> for $enum
{
fn from(source: winit::dpi::$enum) -> Self
{
match source {
$(winit::dpi::$enum::$variant(pos) => Self::$variant(pos.into())),*
}
}
}
impl From<$enum> for winit::dpi::$enum
{
fn from(source: $enum) -> Self
{
match source {
$($enum::$variant(pos) => Self::$variant(pos.into())),*
}
}
}
};
}
#[derive(Debug, Default, Clone, PartialEq)]
pub struct PhysicalPosition<Pixel>
{
pub x: Pixel,
pub y: Pixel
}
impl<Pixel> PhysicalPosition<Pixel>
{
pub fn to_logical<LogicalPixel>(&self, scale_factor: f64) -> LogicalPosition<LogicalPixel>
where
Pixel: Into<f64> + Clone,
LogicalPixel: From<f64>
{
let x = self.x.clone().into();
let y = self.y.clone().into();
LogicalPosition {
x: (x / scale_factor).into(),
y: (y / scale_factor).into()
}
}
pub fn try_convert_from<SourcePixel>(source: PhysicalPosition<SourcePixel>) -> Result<Self, Pixel::Error>
where
Pixel: TryFrom<SourcePixel>
{
Ok(Self {
x: source.x.try_into()?,
y: source.y.try_into()?
})
}
}
gen_struct_from_to_impls!(PhysicalPosition, fields=(x, y));
#[derive(Debug, Default, Clone, PartialEq)]
pub struct LogicalPosition<Pixel>
{
pub x: Pixel,
pub y: Pixel
}
impl<Pixel> LogicalPosition<Pixel>
{
pub fn try_convert_from<SourcePixel>(source: LogicalPosition<SourcePixel>) -> Result<Self, Pixel::Error>
where
Pixel: TryFrom<SourcePixel>
{
Ok(Self {
x: source.x.try_into()?,
y: source.y.try_into()?
})
}
}
gen_struct_from_to_impls!(LogicalPosition, fields=(x, y));
#[derive(Debug, Clone, PartialEq)]
pub enum Position
{
Physical(PhysicalPosition<i32>),
Logical(LogicalPosition<f64>)
}
gen_enum_from_to_impls!(Position, variants=(Physical, Logical));
#[derive(Debug, Default, Clone, PartialEq)]
pub struct PhysicalSize<Pixel>
{
pub width: Pixel,
pub height: Pixel
}
impl<Pixel> PhysicalSize<Pixel>
{
pub fn to_logical<LogicalPixel>(&self, scale_factor: f64) -> LogicalSize<LogicalPixel>
where
Pixel: Into<f64> + Clone,
LogicalPixel: From<f64>
{
let width = self.width.clone().into();
let height = self.height.clone().into();
LogicalSize {
width: (width / scale_factor).into(),
height: (height / scale_factor).into()
}
}
}
impl<Pixel> PhysicalSize<Pixel>
{
pub fn try_convert_from<SourcePixel>(source: PhysicalSize<SourcePixel>) -> Result<Self, Pixel::Error>
where
Pixel: TryFrom<SourcePixel>
{
Ok(Self {
width: source.width.try_into()?,
height: source.height.try_into()?
})
}
}
gen_struct_from_to_impls!(PhysicalSize, fields=(width, height));
#[derive(Debug, Default, Clone, PartialEq)]
pub struct LogicalSize<Pixel>
{
pub width: Pixel,
pub height: Pixel
}
impl<Pixel> LogicalSize<Pixel>
{
pub fn try_convert_from<SourcePixel>(source: LogicalSize<SourcePixel>) -> Result<Self, Pixel::Error>
where
Pixel: TryFrom<SourcePixel>
{
Ok(Self {
width: source.width.try_into()?,
height: source.height.try_into()?
})
}
}
gen_struct_from_to_impls!(LogicalSize, fields=(width, height));
#[derive(Debug, Clone, PartialEq)]
pub enum Size
{
Physical(PhysicalSize<u32>),
Logical(LogicalSize<f64>)
}
gen_enum_from_to_impls!(Size, variants=(Physical, Logical));
|
