Make size/position types generic over pixel type (#1277)

* Begin implementing DPI generics

* Fix multithreaded example

* Format

* Fix serde test

* hopefully fix most of the errors

* Fix dpi module errors

* More error fixings

* Format

* fix macos errors

* Another error pass

* Replace bad type signatures

* more fixins

src/platform/macos.rs

@@ -128,7 +128,7 @@ pub trait WindowBuilderExtMacOS {
     /// Makes the window content appear behind the titlebar.
     fn with_fullsize_content_view(self, fullsize_content_view: bool) -> WindowBuilder;
     /// Build window with `resizeIncrements` property. Values must not be 0.
-    fn with_resize_increments(self, increments: LogicalSize) -> WindowBuilder;
+    fn with_resize_increments(self, increments: LogicalSize<f64>) -> WindowBuilder;
     fn with_disallow_hidpi(self, disallow_hidpi: bool) -> WindowBuilder;
 }
 
@@ -179,7 +179,7 @@ impl WindowBuilderExtMacOS for WindowBuilder {
     }
 
     #[inline]
-    fn with_resize_increments(mut self, increments: LogicalSize) -> WindowBuilder {
+    fn with_resize_increments(mut self, increments: LogicalSize<f64>) -> WindowBuilder {
         self.platform_specific.resize_increments = Some(increments.into());
         self
     }

src/platform/unix.rs

@@ -380,9 +380,9 @@ pub trait WindowBuilderExtUnix {
     /// Build window with `_GTK_THEME_VARIANT` hint set to the specified value. Currently only relevant on X11.
     fn with_gtk_theme_variant(self, variant: String) -> Self;
     /// Build window with resize increment hint. Only implemented on X11.
-    fn with_resize_increments(self, increments: LogicalSize) -> Self;
+    fn with_resize_increments(self, increments: LogicalSize<f64>) -> Self;
     /// Build window with base size hint. Only implemented on X11.
-    fn with_base_size(self, base_size: LogicalSize) -> Self;
+    fn with_base_size(self, base_size: LogicalSize<f64>) -> Self;
 
     /// Build window with a given application ID. It should match the `.desktop` file distributed with
     /// your program. Only relevant on Wayland.
@@ -431,13 +431,13 @@ impl WindowBuilderExtUnix for WindowBuilder {
     }
 
     #[inline]
-    fn with_resize_increments(mut self, increments: LogicalSize) -> Self {
+    fn with_resize_increments(mut self, increments: LogicalSize<f64>) -> Self {
         self.platform_specific.resize_increments = Some(increments.into());
         self
     }
 
     #[inline]
-    fn with_base_size(mut self, base_size: LogicalSize) -> Self {
+    fn with_base_size(mut self, base_size: LogicalSize<f64>) -> Self {
         self.platform_specific.base_size = Some(base_size.into());
         self
     }