b70b229370
Wef is a Rust library for embedding WebView functionality using Chromium Embedded Framework (CEF3) with offscreen rendering support.
43 lines
1.3 KiB
Rust
43 lines
1.3 KiB
Rust
/// A physical pixel unit.
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
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pub struct PhysicalUnit<T>(pub T);
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macro_rules! impl_to_logical {
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($($unit:ty),*) => {
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$(
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impl PhysicalUnit<$unit> {
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/// Converts the physical unit to a logical unit using the device scale
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/// factor.
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#[inline]
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pub fn to_logical(&self, device_scale_factor: f32) -> LogicalUnit<$unit> {
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LogicalUnit((self.0 as f32 / device_scale_factor) as $unit)
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}
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}
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)*
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};
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() => {};
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}
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impl_to_logical!(i32, u32, i64, u64, f32, f64);
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/// A logical pixel unit.
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
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pub struct LogicalUnit<T>(pub T);
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macro_rules! impl_to_physical {
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($($unit:ty),*) => {
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$(
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impl LogicalUnit<$unit> {
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/// Converts the logical unit to a physical unit using the device scale
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/// factor.
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#[inline]
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pub fn to_physical(&self, device_scale_factor: f32) -> PhysicalUnit<$unit> {
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PhysicalUnit((self.0 as f32 * device_scale_factor) as $unit)
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}
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}
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)*
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};
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() => {};
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}
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impl_to_physical!(i32, u32, i64, u64, f32, f64);
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