Changes for testing winit-blur

Changes to make the new blur-behind functionality of winit work.

Cargo.toml

@@ -17,7 +17,8 @@ icon_loading = ["winit/icon_loading"]
 lazy_static = "1"
 libc = "0.2"
 shared_library = "0.1.0"
-winit = "0.15.0"
+#winit = "0.15.0"
+winit = {path = "../winit"}
 
 [build-dependencies]
 gl_generator = "0.9"

examples/blurry.rs

@@ -0,0 +1,39 @@
+extern crate glutin;
+
+mod support;
+
+use glutin::{GlContext, dpi::LogicalSize};
+use glutin::os::macos::{WindowExt, BlurMaterial};
+
+fn main() {
+    let mut events_loop = glutin::EventsLoop::new();
+    let window = glutin::WindowBuilder::new()
+        .with_title("A fantastic window!")
+        //.with_decorations(false)
+        .with_blur(true);
+    let context = glutin::ContextBuilder::new();
+    let gl_window = glutin::GlWindow::new(window, context, &events_loop).unwrap();
+    gl_window.set_blur_material(BlurMaterial::Dark);
+
+    let _ = unsafe { gl_window.make_current() };
+
+    println!("Pixel format of the window's GL context: {:?}", gl_window.get_pixel_format());
+
+    let gl = support::load(&gl_window);
+
+    events_loop.run_forever(|event| {
+        println!("{:?}", event);
+        match event {
+            glutin::Event::WindowEvent { event, .. } => match event {
+                glutin::WindowEvent::CloseRequested => return glutin::ControlFlow::Break,
+                glutin::WindowEvent::Resized(LogicalSize { width: w, height: h }) => gl_window.resize(w as u32, h as u32),
+                _ => (),
+            },
+            _ => (),
+        }
+
+        gl.draw_frame([0.0, 0.0, 0.0, 0.0]);
+        let _ = gl_window.swap_buffers();
+        glutin::ControlFlow::Continue
+    });
+}

src/lib.rs

@@ -94,6 +94,8 @@ pub use winit::{
     WindowId,
 };
 
+pub use winit::dpi;
+
 use std::io;
 
 mod api;

src/os/macos.rs

@@ -4,6 +4,7 @@ pub use winit::os::macos::ActivationPolicy;
 pub use winit::os::macos::MonitorIdExt;
 pub use winit::os::macos::WindowBuilderExt;
 pub use winit::os::macos::WindowExt;
+pub use winit::os::macos::BlurMaterial;
 
 use {Context, HeadlessContext};
 use os::GlContextExt;

src/platform/macos/mod.rs

@@ -44,7 +44,7 @@ impl Context {
         gl_attr: &GlAttributes<&Context>,
     ) -> Result<(winit::Window, Self), CreationError>
     {
-        let transparent = window_builder.window.transparent;
+        let transparent = window_builder.window.transparent || window_builder.window.blur;
         let window = window_builder.build(events_loop)?;
 
         if gl_attr.sharing.is_some() {