baseview 0.3.3

Low-level windowing system geared towards making audio plugin UIs.
Documentation 
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use crate::WindowSize;
pub use dpi::*;

/// A size represented in the platform's native pixels.
///
/// This size is represented in physical pixels on Windows and Linux, and in logical pixels on macOS.
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
pub struct NativeSize<P> {
    pub width: P,
    pub height: P,
}

impl<P> NativeSize<P> {
    #[inline]
    pub const fn new(width: P, height: P) -> Self {
        NativeSize { width, height }
    }
}

impl<P: Pixel> NativeSize<P> {
    #[inline]
    pub fn from_size(size: Size, scale_factor: f64) -> Self {
        #[cfg(target_os = "macos")]
        {
            let size = size.to_logical(scale_factor);
            Self { width: size.width, height: size.height }
        }

        #[cfg(not(target_os = "macos"))]
        {
            let size = size.to_physical(scale_factor);
            Self { width: size.width, height: size.height }
        }
    }

    #[inline]
    pub fn cast<X: Pixel>(&self) -> NativeSize<X> {
        NativeSize { width: self.width.cast(), height: self.height.cast() }
    }

    #[inline]
    pub fn to_physical(self, scale_factor: f64) -> PhysicalSize<P> {
        #[cfg(target_os = "macos")]
        {
            let size = LogicalSize { width: self.width, height: self.height };
            size.to_physical(scale_factor)
        }
        #[cfg(not(target_os = "macos"))]
        {
            let _ = scale_factor;
            PhysicalSize { width: self.width, height: self.height }
        }
    }

    #[inline]
    pub fn to_logical(self, scale_factor: f64) -> LogicalSize<P> {
        #[cfg(target_os = "macos")]
        {
            let _ = scale_factor;
            LogicalSize { width: self.width, height: self.height }
        }
        #[cfg(not(target_os = "macos"))]
        {
            let size = PhysicalSize { width: self.width, height: self.height };
            size.to_logical(scale_factor)
        }
    }
}

impl<P: Pixel> From<WindowSize> for NativeSize<P> {
    #[inline]
    fn from(size: WindowSize) -> Self {
        #[cfg(target_os = "macos")]
        {
            let size = size.logical.cast();
            Self { width: size.width, height: size.height }
        }

        #[cfg(not(target_os = "macos"))]
        {
            let size = size.physical.cast();
            Self { width: size.width, height: size.height }
        }
    }
}

impl<P: Pixel> From<NativeSize<P>> for Size {
    #[inline]
    fn from(size: NativeSize<P>) -> Self {
        #[cfg(target_os = "macos")]
        {
            Size::Logical(LogicalSize::new(size.width, size.height).cast())
        }
        #[cfg(not(target_os = "macos"))]
        {
            Size::Physical(PhysicalSize::new(size.width, size.height).cast())
        }
    }
}