Implement `iced_glutin` 🎉

Cargo.toml

@@ -13,13 +13,13 @@ categories = ["gui"]
 
 [features]
 # Enables the `Image` widget
-image = ["iced_wgpu/image"]
+image = ["iced_glow/image"]
 # Enables the `Svg` widget
-svg = ["iced_wgpu/svg"]
+svg = ["iced_glow/svg"]
 # Enables the `Canvas` widget
-canvas = ["iced_wgpu/canvas"]
+canvas = ["iced_glow/canvas"]
 # Enables a debug view in native platforms (press F12)
-debug = ["iced_winit/debug"]
+debug = ["iced_glutin/debug"]
 # Enables `tokio` as the `executor::Default` on native platforms
 tokio = ["iced_futures/tokio"]
 # Enables `async-std` as the `executor::Default` on native platforms
@@ -36,6 +36,7 @@ members = [
     "futures",
     "graphics",
     "glow",
+    "glutin",
     "native",
     "style",
     "web",
@@ -67,8 +68,8 @@ iced_core = { version = "0.2", path = "core" }
 iced_futures = { version = "0.1", path = "futures" }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-iced_winit = { version = "0.1", path = "winit" }
+iced_glutin = { version = "0.1", path = "glutin" }
-iced_wgpu = { version = "0.2", path = "wgpu" }
+iced_glow = { version = "0.1", path = "glow" }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 iced_web = { version = "0.2", path = "web" }

examples/custom_widget/Cargo.toml

@@ -8,4 +8,4 @@ publish = false
 [dependencies]
 iced = { path = "../.." }
 iced_native = { path = "../../native" }
-iced_wgpu = { path = "../../wgpu" }
+iced_graphics = { path = "../../graphics" }

examples/custom_widget/src/main.rs

@@ -9,11 +9,11 @@ mod circle {
     // Of course, you can choose to make the implementation renderer-agnostic,
     // if you wish to, by creating your own `Renderer` trait, which could be
     // implemented by `iced_wgpu` and other renderers.
+    use iced_graphics::{Backend, Defaults, Primitive, Renderer};
     use iced_native::{
         layout, mouse, Background, Color, Element, Hasher, Layout, Length,
         Point, Size, Widget,
     };
-    use iced_wgpu::{Defaults, Primitive, Renderer};
 
     pub struct Circle {
         radius: u16,
@@ -25,7 +25,10 @@ mod circle {
         }
     }
 
-    impl<Message> Widget<Message, Renderer> for Circle {
+    impl<Message, B> Widget<Message, Renderer<B>> for Circle
+    where
+        B: Backend,
+    {
         fn width(&self) -> Length {
             Length::Shrink
         }
@@ -36,7 +39,7 @@ mod circle {
 
         fn layout(
             &self,
-            _renderer: &Renderer,
+            _renderer: &Renderer<B>,
             _limits: &layout::Limits,
         ) -> layout::Node {
             layout::Node::new(Size::new(
@@ -53,7 +56,7 @@ mod circle {
 
         fn draw(
             &self,
-            _renderer: &mut Renderer,
+            _renderer: &mut Renderer<B>,
             _defaults: &Defaults,
             layout: Layout<'_>,
             _cursor_position: Point,
@@ -71,8 +74,11 @@ mod circle {
         }
     }
 
-    impl<'a, Message> Into<Element<'a, Message, Renderer>> for Circle {
+    impl<'a, Message, B> Into<Element<'a, Message, Renderer<B>>> for Circle
-        fn into(self) -> Element<'a, Message, Renderer> {
+    where
+        B: Backend,
+    {
+        fn into(self) -> Element<'a, Message, Renderer<B>> {
             Element::new(self)
         }
     }

examples/geometry/Cargo.toml

@@ -8,4 +8,4 @@ publish = false
 [dependencies]
 iced = { path = "../.." }
 iced_native = { path = "../../native" }
-iced_wgpu = { path = "../../wgpu" }
+iced_graphics = { path = "../../graphics" }

examples/geometry/src/main.rs

@@ -10,14 +10,14 @@ mod rainbow {
     // Of course, you can choose to make the implementation renderer-agnostic,
     // if you wish to, by creating your own `Renderer` trait, which could be
     // implemented by `iced_wgpu` and other renderers.
+    use iced_graphics::{
+        triangle::{Mesh2D, Vertex2D},
+        Backend, Defaults, Primitive, Renderer,
+    };
     use iced_native::{
         layout, mouse, Element, Hasher, Layout, Length, Point, Size, Vector,
         Widget,
     };
-    use iced_wgpu::{
-        triangle::{Mesh2D, Vertex2D},
-        Defaults, Primitive, Renderer,
-    };
 
     pub struct Rainbow;
 
@@ -27,7 +27,10 @@ mod rainbow {
         }
     }
 
-    impl<Message> Widget<Message, Renderer> for Rainbow {
+    impl<Message, B> Widget<Message, Renderer<B>> for Rainbow
+    where
+        B: Backend,
+    {
         fn width(&self) -> Length {
             Length::Fill
         }
@@ -38,7 +41,7 @@ mod rainbow {
 
         fn layout(
             &self,
-            _renderer: &Renderer,
+            _renderer: &Renderer<B>,
             limits: &layout::Limits,
         ) -> layout::Node {
             let size = limits.width(Length::Fill).resolve(Size::ZERO);
@@ -50,7 +53,7 @@ mod rainbow {
 
         fn draw(
             &self,
-            _renderer: &mut Renderer,
+            _renderer: &mut Renderer<B>,
             _defaults: &Defaults,
             layout: Layout<'_>,
             cursor_position: Point,
@@ -146,8 +149,11 @@ mod rainbow {
         }
     }
 
-    impl<'a, Message> Into<Element<'a, Message, Renderer>> for Rainbow {
+    impl<'a, Message, B> Into<Element<'a, Message, Renderer<B>>> for Rainbow
-        fn into(self) -> Element<'a, Message, Renderer> {
+    where
+        B: Backend,
+    {
+        fn into(self) -> Element<'a, Message, Renderer<B>> {
             Element::new(self)
         }
     }

examples/todos/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 publish = false
 
 [dependencies]
-iced = { path = "../..", features = ["async-std"] }
+iced = { path = "../..", features = ["async-std", "debug"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 

examples/tour/Cargo.toml

@@ -6,6 +6,5 @@ edition = "2018"
 publish = false
 
 [dependencies]
-iced_winit = { path = "../../winit", features = ["debug"] }
+iced = { path = "../..", features = ["image", "debug"] }
-iced_glow = { path = "../../glow" }
 env_logger = "0.7"

examples/tour/src/main.rs

@@ -1,20 +1,14 @@
-use iced_glow::{
+use iced::{
-    button, scrollable, slider, text_input, window, Button, Checkbox, Color,
+    button, executor, scrollable, slider, text_input, Application, Button,
-    Column, Command, Container, Element, HorizontalAlignment, Image, Length,
+    Checkbox, Color, Column, Command, Container, Element, HorizontalAlignment,
-    Radio, Row, Scrollable, Slider, Space, Text, TextInput,
+    Image, Length, Radio, Row, Scrollable, Settings, Slider, Space, Text,
+    TextInput,
 };
-use iced_winit::{executor, Application, Settings};
 
 pub fn main() {
     env_logger::init();
 
-    Tour::run(
+    Tour::run(Settings::default())
-        Settings::default(),
-        iced_glow::Settings {
-            default_font: None,
-            antialiasing: None,
-        },
-    )
 }
 
 pub struct Tour {
@@ -26,7 +20,6 @@ pub struct Tour {
 }
 
 impl Application for Tour {
-    type Compositor = window::Compositor;
     type Executor = executor::Null;
     type Message = Message;
     type Flags = ();
@@ -693,18 +686,17 @@ impl<'a> Step {
 
 fn ferris<'a>(width: u16) -> Container<'a, StepMessage> {
     Container::new(
-        Text::new("Not supported yet!")
         // This should go away once we unify resource loading on native
         // platforms
-        //if cfg!(target_arch = "wasm32") {
+        if cfg!(target_arch = "wasm32") {
-        //    Image::new("images/ferris.png")
+            Image::new("images/ferris.png")
-        //} else {
+        } else {
-        //    Image::new(format!(
+            Image::new(format!(
-        //        "{}/images/ferris.png",
+                "{}/images/ferris.png",
-        //        env!("CARGO_MANIFEST_DIR")
+                env!("CARGO_MANIFEST_DIR")
-        //    ))
+            ))
-        //}
+        }
-        //.width(Length::Units(width)),
+        .width(Length::Units(width)),
     )
     .width(Length::Fill)
     .center_x()
@@ -765,7 +757,7 @@ pub enum Layout {
 }
 
 mod style {
-    use iced_glow::{button, Background, Color, Vector};
+    use iced::{button, Background, Color, Vector};
 
     pub enum Button {
         Primary,

glow/Cargo.toml

@@ -7,8 +7,12 @@ description = "A glow renderer for iced"
 license = "MIT AND OFL-1.1"
 repository = "https://github.com/hecrj/iced"
 
+[features]
+canvas = ["iced_graphics/canvas"]
+image = []
+svg = []
+
 [dependencies]
-raw-window-handle = "0.3"
 euclid = "0.20"
 glow = "0.4"
 bytemuck = "1.2"
@@ -23,12 +27,7 @@ path = "../native"
 [dependencies.iced_graphics]
 version = "0.1"
 path = "../graphics"
-features = ["font-source", "font-fallback", "font-icons"]
+features = ["font-source", "font-fallback", "font-icons", "opengl"]
-
-[dependencies.surfman]
-path = "../../surfman/surfman"
-default-features = false
-features = ["sm-raw-window-handle", "sm-x11"]
 
 [dependencies.glow_glyph]
 path = "../../glow_glyph"

glow/src/backend.rs

@@ -36,12 +36,6 @@ impl Backend {
         }
     }
 
-    /// Draws the provided primitives in the given [`Target`].
-    ///
-    /// The text provided as overlay will be renderer on top of the primitives.
-    /// This is useful for rendering debug information.
-    ///
-    /// [`Target`]: struct.Target.html
     pub fn draw<T: AsRef<str>>(
         &mut self,
         gl: &glow::Context,
@@ -50,6 +44,7 @@ impl Backend {
         overlay_text: &[T],
     ) -> mouse::Interaction {
         let viewport_size = viewport.physical_size();
+        let scale_factor = viewport.scale_factor() as f32;
         let projection = viewport.projection();
 
         let mut layers = Layer::generate(primitive, viewport);
@@ -58,7 +53,7 @@ impl Backend {
         for layer in layers {
             self.flush(
                 gl,
-                viewport.scale_factor() as f32,
+                scale_factor,
                 projection,
                 &layer,
                 viewport_size.width,
@@ -78,7 +73,8 @@ impl Backend {
         target_width: u32,
         target_height: u32,
     ) {
-        let bounds = (layer.bounds * scale_factor).round();
+        let mut bounds = (layer.bounds * scale_factor).round();
+        bounds.height = bounds.height.min(target_height);
 
         if !layer.quads.is_empty() {
             self.quad_pipeline.draw(
@@ -204,3 +200,20 @@ impl backend::Text for Backend {
         self.text_pipeline.space_width(size)
     }
 }
+
+#[cfg(feature = "image")]
+impl backend::Image for Backend {
+    fn dimensions(&self, _handle: &iced_native::image::Handle) -> (u32, u32) {
+        (50, 50)
+    }
+}
+
+#[cfg(feature = "svg")]
+impl backend::Svg for Backend {
+    fn viewport_dimensions(
+        &self,
+        _handle: &iced_native::svg::Handle,
+    ) -> (u32, u32) {
+        (50, 50)
+    }
+}

glow/src/widget.rs

@@ -38,7 +38,16 @@ pub use slider::Slider;
 #[doc(no_inline)]
 pub use text_input::TextInput;
 
-pub use iced_native::{Image, Space, Text};
+#[cfg(feature = "canvas")]
+#[cfg_attr(docsrs, doc(cfg(feature = "canvas")))]
+pub mod canvas;
+
+#[cfg(feature = "canvas")]
+#[doc(no_inline)]
+pub use canvas::Canvas;
+
+pub use iced_native::{Image, Space};
 
 pub type Column<'a, Message> = iced_native::Column<'a, Message, Renderer>;
 pub type Row<'a, Message> = iced_native::Row<'a, Message, Renderer>;
+pub type Text = iced_native::Text<Renderer>;

glow/src/widget/canvas.rs

@@ -6,196 +6,4 @@
 //!
 //! [`Canvas`]: struct.Canvas.html
 //! [`Frame`]: struct.Frame.html
-use crate::{Defaults, Primitive, Renderer};
+pub use iced_graphics::canvas::*;
-
-use iced_native::{
-    layout, Element, Hasher, Layout, Length, MouseCursor, Point, Size, Widget,
-};
-use std::hash::Hash;
-
-pub mod layer;
-pub mod path;
-
-mod drawable;
-mod fill;
-mod frame;
-mod stroke;
-mod text;
-
-pub use drawable::Drawable;
-pub use fill::Fill;
-pub use frame::Frame;
-pub use layer::Layer;
-pub use path::Path;
-pub use stroke::{LineCap, LineJoin, Stroke};
-pub use text::Text;
-
-/// A widget capable of drawing 2D graphics.
-///
-/// A [`Canvas`] may contain multiple layers. A [`Layer`] is drawn using the
-/// painter's algorithm. In other words, layers will be drawn on top of each
-/// other in the same order they are pushed into the [`Canvas`].
-///
-/// [`Canvas`]: struct.Canvas.html
-/// [`Layer`]: layer/trait.Layer.html
-///
-/// # Examples
-/// The repository has a couple of [examples] showcasing how to use a
-/// [`Canvas`]:
-///
-/// - [`clock`], an application that uses the [`Canvas`] widget to draw a clock
-/// and its hands to display the current time.
-/// - [`solar_system`], an animated solar system drawn using the [`Canvas`] widget
-/// and showcasing how to compose different transforms.
-///
-/// [examples]: https://github.com/hecrj/iced/tree/0.1/examples
-/// [`clock`]: https://github.com/hecrj/iced/tree/0.1/examples/clock
-/// [`solar_system`]: https://github.com/hecrj/iced/tree/0.1/examples/solar_system
-///
-/// ## Drawing a simple circle
-/// If you want to get a quick overview, here's how we can draw a simple circle:
-///
-/// ```no_run
-/// # mod iced {
-/// #     pub use iced_wgpu::canvas;
-/// #     pub use iced_native::Color;
-/// # }
-/// use iced::canvas::{self, layer, Canvas, Drawable, Fill, Frame, Path};
-/// use iced::Color;
-///
-/// // First, we define the data we need for drawing
-/// #[derive(Debug)]
-/// struct Circle {
-///     radius: f32,
-/// }
-///
-/// // Then, we implement the `Drawable` trait
-/// impl Drawable for Circle {
-///     fn draw(&self, frame: &mut Frame) {
-///         // We create a `Path` representing a simple circle
-///         let circle = Path::new(|p| p.circle(frame.center(), self.radius));
-///
-///         // And fill it with some color
-///         frame.fill(&circle, Fill::Color(Color::BLACK));
-///     }
-/// }
-///
-/// // We can use a `Cache` to avoid unnecessary re-tessellation
-/// let cache: layer::Cache<Circle> = layer::Cache::new();
-///
-/// // Finally, we simply provide the data to our `Cache` and push the resulting
-/// // layer into a `Canvas`
-/// let canvas = Canvas::new()
-///     .push(cache.with(&Circle { radius: 50.0 }));
-/// ```
-#[derive(Debug)]
-pub struct Canvas<'a> {
-    width: Length,
-    height: Length,
-    layers: Vec<Box<dyn Layer + 'a>>,
-}
-
-impl<'a> Canvas<'a> {
-    const DEFAULT_SIZE: u16 = 100;
-
-    /// Creates a new [`Canvas`] with no layers.
-    ///
-    /// [`Canvas`]: struct.Canvas.html
-    pub fn new() -> Self {
-        Canvas {
-            width: Length::Units(Self::DEFAULT_SIZE),
-            height: Length::Units(Self::DEFAULT_SIZE),
-            layers: Vec::new(),
-        }
-    }
-
-    /// Sets the width of the [`Canvas`].
-    ///
-    /// [`Canvas`]: struct.Canvas.html
-    pub fn width(mut self, width: Length) -> Self {
-        self.width = width;
-        self
-    }
-
-    /// Sets the height of the [`Canvas`].
-    ///
-    /// [`Canvas`]: struct.Canvas.html
-    pub fn height(mut self, height: Length) -> Self {
-        self.height = height;
-        self
-    }
-
-    /// Adds a [`Layer`] to the [`Canvas`].
-    ///
-    /// It will be drawn on top of previous layers.
-    ///
-    /// [`Layer`]: layer/trait.Layer.html
-    /// [`Canvas`]: struct.Canvas.html
-    pub fn push(mut self, layer: impl Layer + 'a) -> Self {
-        self.layers.push(Box::new(layer));
-        self
-    }
-}
-
-impl<'a, Message> Widget<Message, Renderer> for Canvas<'a> {
-    fn width(&self) -> Length {
-        self.width
-    }
-
-    fn height(&self) -> Length {
-        self.height
-    }
-
-    fn layout(
-        &self,
-        _renderer: &Renderer,
-        limits: &layout::Limits,
-    ) -> layout::Node {
-        let limits = limits.width(self.width).height(self.height);
-        let size = limits.resolve(Size::ZERO);
-
-        layout::Node::new(size)
-    }
-
-    fn draw(
-        &self,
-        _renderer: &mut Renderer,
-        _defaults: &Defaults,
-        layout: Layout<'_>,
-        _cursor_position: Point,
-    ) -> (Primitive, MouseCursor) {
-        let bounds = layout.bounds();
-        let origin = Point::new(bounds.x, bounds.y);
-        let size = Size::new(bounds.width, bounds.height);
-
-        (
-            Primitive::Group {
-                primitives: self
-                    .layers
-                    .iter()
-                    .map(|layer| Primitive::Cached {
-                        origin,
-                        cache: layer.draw(size),
-                    })
-                    .collect(),
-            },
-            MouseCursor::Idle,
-        )
-    }
-
-    fn hash_layout(&self, state: &mut Hasher) {
-        std::any::TypeId::of::<Canvas<'static>>().hash(state);
-
-        self.width.hash(state);
-        self.height.hash(state);
-    }
-}
-
-impl<'a, Message> From<Canvas<'a>> for Element<'a, Message, Renderer>
-where
-    Message: 'static,
-{
-    fn from(canvas: Canvas<'a>) -> Element<'a, Message, Renderer> {
-        Element::new(canvas)
-    }
-}

glow/src/window/compositor.rs

@@ -1,180 +1,64 @@
-use crate::{Renderer, Settings, Viewport};
+use crate::{Backend, Renderer, Settings, Viewport};
 
+use core::ffi::c_void;
 use glow::HasContext;
+use iced_graphics::Size;
 use iced_native::mouse;
-use raw_window_handle::HasRawWindowHandle;
 
 /// A window graphics backend for iced powered by `glow`.
 #[allow(missing_debug_implementations)]
 pub struct Compositor {
-    connection: surfman::Connection,
+    gl: glow::Context,
-    device: surfman::Device,
-    gl_context: surfman::Context,
-    gl: Option<glow::Context>,
 }
 
-impl iced_graphics::window::Compositor for Compositor {
+impl iced_graphics::window::GLCompositor for Compositor {
     type Settings = Settings;
     type Renderer = Renderer;
-    type Surface = ();
-    type SwapChain = ();
 
-    fn new(_settings: Self::Settings) -> Self {
+    unsafe fn new(
-        let connection = surfman::Connection::new().expect("Create connection");
+        settings: Self::Settings,
+        loader_function: impl FnMut(&str) -> *const c_void,
+    ) -> (Self, Self::Renderer) {
+        let gl = glow::Context::from_loader_function(loader_function);
 
-        let adapter = connection
+        gl.clear_color(1.0, 1.0, 1.0, 1.0);
-            .create_hardware_adapter()
-            .expect("Create adapter");
 
-        let mut device =
+        // Enable auto-conversion from/to sRGB
-            connection.create_device(&adapter).expect("Create device");
+        gl.enable(glow::FRAMEBUFFER_SRGB);
 
-        let context_descriptor = device
+        // Enable alpha blending
-            .create_context_descriptor(&surfman::ContextAttributes {
+        gl.enable(glow::BLEND);
-                version: surfman::GLVersion::new(3, 0),
+        gl.blend_func(glow::SRC_ALPHA, glow::ONE_MINUS_SRC_ALPHA);
-                flags: surfman::ContextAttributeFlags::empty(),
-            })
-            .expect("Create context descriptor");
 
-        let gl_context = device
+        let renderer = Renderer::new(Backend::new(&gl, settings));
-            .create_context(&context_descriptor)
-            .expect("Create context");
 
-        Self {
+        (Self { gl }, renderer)
-            connection,
-            device,
-            gl_context,
-            gl: None,
-        }
     }
 
-    fn create_renderer(&mut self, settings: Settings) -> Renderer {
+    fn resize_viewport(&mut self, physical_size: Size<u32>) {
-        self.device
-            .make_context_current(&self.gl_context)
-            .expect("Make context current");
-
-        Renderer::new(crate::Backend::new(self.gl.as_ref().unwrap(), settings))
-    }
-
-    fn create_surface<W: HasRawWindowHandle>(
-        &mut self,
-        window: &W,
-    ) -> Self::Surface {
-        let native_widget = self
-            .connection
-            .create_native_widget_from_rwh(window.raw_window_handle())
-            .expect("Create widget");
-
-        let surface = self
-            .device
-            .create_surface(
-                &self.gl_context,
-                surfman::SurfaceAccess::GPUOnly,
-                surfman::SurfaceType::Widget { native_widget },
-            )
-            .expect("Create surface");
-
-        let surfman::SurfaceInfo { .. } = self.device.surface_info(&surface);
-
-        self.device
-            .bind_surface_to_context(&mut self.gl_context, surface)
-            .expect("Bind surface to context");
-
-        self.device
-            .make_context_current(&self.gl_context)
-            .expect("Make context current");
-
-        self.gl = Some(glow::Context::from_loader_function(|s| {
-            self.device.get_proc_address(&self.gl_context, s)
-        }));
-
-        //let mut framebuffer =
-        //    skia_safe::gpu::gl::FramebufferInfo::from_fboid(framebuffer_object);
-
-        //framebuffer.format = gl::RGBA8;
-
-        //framebuffer
-    }
-
-    fn create_swap_chain(
-        &mut self,
-        _surface: &Self::Surface,
-        width: u32,
-        height: u32,
-    ) -> Self::SwapChain {
-        let mut surface = self
-            .device
-            .unbind_surface_from_context(&mut self.gl_context)
-            .expect("Unbind surface")
-            .expect("Active surface");
-
-        self.device
-            .resize_surface(
-                &self.gl_context,
-                &mut surface,
-                euclid::Size2D::new(width as i32, height as i32),
-            )
-            .expect("Resize surface");
-
-        self.device
-            .bind_surface_to_context(&mut self.gl_context, surface)
-            .expect("Bind surface to context");
-
-        let gl = self.gl.as_ref().unwrap();
-
         unsafe {
-            gl.viewport(0, 0, width as i32, height as i32);
+            self.gl.viewport(
-            gl.clear_color(1.0, 1.0, 1.0, 1.0);
+                0,
-
+                0,
-            // Enable auto-conversion from/to sRGB
+                physical_size.width as i32,
-            gl.enable(glow::FRAMEBUFFER_SRGB);
+                physical_size.height as i32,
-
+            );
-            // Enable alpha blending
-            gl.enable(glow::BLEND);
-            gl.blend_func(glow::SRC_ALPHA, glow::ONE_MINUS_SRC_ALPHA);
         }
     }
 
     fn draw<T: AsRef<str>>(
         &mut self,
         renderer: &mut Self::Renderer,
-        swap_chain: &mut Self::SwapChain,
         viewport: &Viewport,
         output: &<Self::Renderer as iced_native::Renderer>::Output,
         overlay: &[T],
     ) -> mouse::Interaction {
-        let gl = self.gl.as_ref().unwrap();
+        let gl = &self.gl;
 
         unsafe {
             gl.clear(glow::COLOR_BUFFER_BIT);
         }
 
-        let mouse = renderer.backend_mut().draw(gl, viewport, output, overlay);
+        renderer.backend_mut().draw(gl, viewport, output, overlay)
-
-        {
-            let mut surface = self
-                .device
-                .unbind_surface_from_context(&mut self.gl_context)
-                .expect("Unbind surface")
-                .expect("Active surface");
-
-            self.device
-                .present_surface(&self.gl_context, &mut surface)
-                .expect("Present surface");
-
-            self.device
-                .bind_surface_to_context(&mut self.gl_context, surface)
-                .expect("Bind surface to context");
-        }
-
-        mouse
-    }
-}
-
-impl Drop for Compositor {
-    fn drop(&mut self) {
-        self.device
-            .destroy_context(&mut self.gl_context)
-            .expect("Destroy context");
     }
 }

glutin/Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "iced_glutin"
+version = "0.1.0"
+authors = ["Héctor Ramón Jiménez <hector0193@gmail.com>"]
+edition = "2018"
+description = "A glutin runtime for Iced"
+license = "MIT"
+repository = "https://github.com/hecrj/iced"
+documentation = "https://docs.rs/iced_glutin"
+keywords = ["gui", "ui", "graphics", "interface", "widgets"]
+categories = ["gui"]
+
+[features]
+debug = ["iced_winit/debug"]
+
+[dependencies]
+glutin = "0.24"
+
+[dependencies.iced_native]
+version = "0.2"
+path = "../native"
+
+[dependencies.iced_winit]
+version = "0.1"
+path = "../winit"
+
+[dependencies.iced_graphics]
+version = "0.1"
+path = "../graphics"
+features = ["opengl"]

glutin/README.md

@@ -0,0 +1,27 @@
+# `iced_winit`
+[![Documentation](https://docs.rs/iced_winit/badge.svg)][documentation]
+[![Crates.io](https://img.shields.io/crates/v/iced_winit.svg)](https://crates.io/crates/iced_winit)
+[![License](https://img.shields.io/crates/l/iced_winit.svg)](https://github.com/hecrj/iced/blob/master/LICENSE)
+[![project chat](https://img.shields.io/badge/chat-on_zulip-brightgreen.svg)](https://iced.zulipchat.com)
+
+`iced_winit` offers some convenient abstractions on top of [`iced_native`] to quickstart development when using [`winit`].
+
+It exposes a renderer-agnostic `Application` trait that can be implemented and then run with a simple call. The use of this trait is optional. A `conversion` module is provided for users that decide to implement a custom event loop.
+
+![iced_winit](../docs/graphs/winit.png)
+
+[documentation]: https://docs.rs/iced_winit
+[`iced_native`]: ../native
+[`winit`]: https://github.com/rust-windowing/winit
+
+## Installation
+Add `iced_winit` as a dependency in your `Cargo.toml`:
+
+```toml
+iced_winit = "0.1"
+```
+
+__Iced moves fast and the `master` branch can contain breaking changes!__ If
+you want to learn about a specific release, check out [the release list].
+
+[the release list]: https://github.com/hecrj/iced/releases

glutin/src/application.rs

@@ -0,0 +1,429 @@
+use crate::{
+    mouse, Cache, Command, Element, Executor, Runtime, Size, Subscription,
+    UserInterface,
+};
+use iced_graphics::window;
+use iced_graphics::Viewport;
+use iced_winit::conversion;
+use iced_winit::{Clipboard, Debug, Mode, Proxy, Settings};
+
+/// An interactive, native cross-platform application.
+///
+/// This trait is the main entrypoint of Iced. Once implemented, you can run
+/// your GUI application by simply calling [`run`](#method.run). It will run in
+/// its own window.
+///
+/// An [`Application`](trait.Application.html) can execute asynchronous actions
+/// by returning a [`Command`](struct.Command.html) in some of its methods.
+///
+/// When using an [`Application`] with the `debug` feature enabled, a debug view
+/// can be toggled by pressing `F12`.
+pub trait Application: Sized {
+    /// The graphics backend to use to draw the [`Application`].
+    ///
+    /// [`Application`]: trait.Application.html
+    type Compositor: window::GLCompositor;
+
+    /// The [`Executor`] that will run commands and subscriptions.
+    ///
+    /// [`Executor`]: trait.Executor.html
+    type Executor: Executor;
+
+    /// The type of __messages__ your [`Application`] will produce.
+    ///
+    /// [`Application`]: trait.Application.html
+    type Message: std::fmt::Debug + Send;
+
+    /// The data needed to initialize your [`Application`].
+    ///
+    /// [`Application`]: trait.Application.html
+    type Flags;
+
+    /// Initializes the [`Application`] with the flags provided to
+    /// [`run`] as part of the [`Settings`].
+    ///
+    /// Here is where you should return the initial state of your app.
+    ///
+    /// Additionally, you can return a [`Command`](struct.Command.html) if you
+    /// need to perform some async action in the background on startup. This is
+    /// useful if you want to load state from a file, perform an initial HTTP
+    /// request, etc.
+    ///
+    /// [`Application`]: trait.Application.html
+    /// [`run`]: #method.run.html
+    /// [`Settings`]: struct.Settings.html
+    fn new(flags: Self::Flags) -> (Self, Command<Self::Message>);
+
+    /// Returns the current title of the [`Application`].
+    ///
+    /// This title can be dynamic! The runtime will automatically update the
+    /// title of your application when necessary.
+    ///
+    /// [`Application`]: trait.Application.html
+    fn title(&self) -> String;
+
+    /// Handles a __message__ and updates the state of the [`Application`].
+    ///
+    /// This is where you define your __update logic__. All the __messages__,
+    /// produced by either user interactions or commands, will be handled by
+    /// this method.
+    ///
+    /// Any [`Command`] returned will be executed immediately in the background.
+    ///
+    /// [`Application`]: trait.Application.html
+    /// [`Command`]: struct.Command.html
+    fn update(&mut self, message: Self::Message) -> Command<Self::Message>;
+
+    /// Returns the event `Subscription` for the current state of the
+    /// application.
+    ///
+    /// The messages produced by the `Subscription` will be handled by
+    /// [`update`](#tymethod.update).
+    ///
+    /// A `Subscription` will be kept alive as long as you keep returning it!
+    ///
+    /// By default, it returns an empty subscription.
+    fn subscription(&self) -> Subscription<Self::Message> {
+        Subscription::none()
+    }
+
+    /// Returns the widgets to display in the [`Application`].
+    ///
+    /// These widgets can produce __messages__ based on user interaction.
+    ///
+    /// [`Application`]: trait.Application.html
+    fn view(
+        &mut self,
+    ) -> Element<
+        '_,
+        Self::Message,
+        <Self::Compositor as window::GLCompositor>::Renderer,
+    >;
+
+    /// Returns the current [`Application`] mode.
+    ///
+    /// The runtime will automatically transition your application if a new mode
+    /// is returned.
+    ///
+    /// By default, an application will run in windowed mode.
+    ///
+    /// [`Application`]: trait.Application.html
+    fn mode(&self) -> Mode {
+        Mode::Windowed
+    }
+
+    /// Runs the [`Application`] with the provided [`Settings`].
+    ///
+    /// On native platforms, this method will take control of the current thread
+    /// and __will NOT return__.
+    ///
+    /// It should probably be that last thing you call in your `main` function.
+    ///
+    /// [`Application`]: trait.Application.html
+    /// [`Settings`]: struct.Settings.html
+    fn run(
+        settings: Settings<Self::Flags>,
+        backend_settings: <Self::Compositor as window::GLCompositor>::Settings,
+    ) where
+        Self: 'static,
+    {
+        use glutin::{
+            event::{self, WindowEvent},
+            event_loop::{ControlFlow, EventLoop},
+            ContextBuilder,
+        };
+        use iced_graphics::window::GLCompositor as _;
+
+        let mut debug = Debug::new();
+
+        debug.startup_started();
+        let event_loop = EventLoop::with_user_event();
+        let mut external_messages = Vec::new();
+
+        let mut runtime = {
+            let executor = Self::Executor::new().expect("Create executor");
+
+            Runtime::new(executor, Proxy::new(event_loop.create_proxy()))
+        };
+
+        let flags = settings.flags;
+        let (mut application, init_command) =
+            runtime.enter(|| Self::new(flags));
+        runtime.spawn(init_command);
+
+        let subscription = application.subscription();
+        runtime.track(subscription);
+
+        let mut title = application.title();
+        let mut mode = application.mode();
+
+        let context = {
+            let window_builder = settings.window.into_builder(
+                &title,
+                mode,
+                event_loop.primary_monitor(),
+            );
+
+            let context = ContextBuilder::new()
+                .with_vsync(true)
+                .build_windowed(window_builder, &event_loop)
+                .expect("Open window");
+
+            #[allow(unsafe_code)]
+            unsafe {
+                context.make_current().expect("Make OpenGL context current")
+            }
+        };
+
+        let physical_size = context.window().inner_size();
+        let mut viewport = Viewport::with_physical_size(
+            Size::new(physical_size.width, physical_size.height),
+            context.window().scale_factor(),
+        );
+        let mut resized = false;
+
+        let clipboard = Clipboard::new(&context.window());
+
+        #[allow(unsafe_code)]
+        let (mut compositor, mut renderer) = unsafe {
+            Self::Compositor::new(backend_settings, |address| {
+                context.get_proc_address(address)
+            })
+        };
+
+        let user_interface = build_user_interface(
+            &mut application,
+            Cache::default(),
+            &mut renderer,
+            viewport.logical_size(),
+            &mut debug,
+        );
+
+        debug.draw_started();
+        let mut primitive = user_interface.draw(&mut renderer);
+        debug.draw_finished();
+
+        let mut cache = Some(user_interface.into_cache());
+        let mut events = Vec::new();
+        let mut mouse_interaction = mouse::Interaction::default();
+        let mut modifiers = glutin::event::ModifiersState::default();
+        debug.startup_finished();
+
+        context.window().request_redraw();
+
+        event_loop.run(move |event, _, control_flow| match event {
+            event::Event::MainEventsCleared => {
+                if events.is_empty() && external_messages.is_empty() {
+                    return;
+                }
+
+                let mut user_interface = build_user_interface(
+                    &mut application,
+                    cache.take().unwrap(),
+                    &mut renderer,
+                    viewport.logical_size(),
+                    &mut debug,
+                );
+
+                debug.event_processing_started();
+                events
+                    .iter()
+                    .cloned()
+                    .for_each(|event| runtime.broadcast(event));
+
+                let mut messages = user_interface.update(
+                    events.drain(..),
+                    clipboard
+                        .as_ref()
+                        .map(|c| c as &dyn iced_native::Clipboard),
+                    &renderer,
+                );
+                messages.extend(external_messages.drain(..));
+                debug.event_processing_finished();
+
+                if messages.is_empty() {
+                    debug.draw_started();
+                    primitive = user_interface.draw(&mut renderer);
+                    debug.draw_finished();
+
+                    cache = Some(user_interface.into_cache());
+                } else {
+                    // When there are messages, we are forced to rebuild twice
+                    // for now :^)
+                    let temp_cache = user_interface.into_cache();
+
+                    for message in messages {
+                        debug.log_message(&message);
+
+                        debug.update_started();
+                        let command =
+                            runtime.enter(|| application.update(message));
+                        runtime.spawn(command);
+                        debug.update_finished();
+                    }
+
+                    let subscription = application.subscription();
+                    runtime.track(subscription);
+
+                    // Update window title
+                    let new_title = application.title();
+
+                    if title != new_title {
+                        context.window().set_title(&new_title);
+
+                        title = new_title;
+                    }
+
+                    // Update window mode
+                    let new_mode = application.mode();
+
+                    if mode != new_mode {
+                        context.window().set_fullscreen(
+                            conversion::fullscreen(
+                                context.window().current_monitor(),
+                                new_mode,
+                            ),
+                        );
+
+                        mode = new_mode;
+                    }
+
+                    let user_interface = build_user_interface(
+                        &mut application,
+                        temp_cache,
+                        &mut renderer,
+                        viewport.logical_size(),
+                        &mut debug,
+                    );
+
+                    debug.draw_started();
+                    primitive = user_interface.draw(&mut renderer);
+                    debug.draw_finished();
+
+                    cache = Some(user_interface.into_cache());
+                }
+
+                context.window().request_redraw();
+            }
+            event::Event::UserEvent(message) => {
+                external_messages.push(message);
+            }
+            event::Event::RedrawRequested(_) => {
+                debug.render_started();
+
+                if resized {
+                    let physical_size = viewport.physical_size();
+
+                    context.resize(glutin::dpi::PhysicalSize {
+                        width: physical_size.width,
+                        height: physical_size.height,
+                    });
+                    compositor.resize_viewport(physical_size);
+
+                    resized = false;
+                }
+
+                let new_mouse_interaction = compositor.draw(
+                    &mut renderer,
+                    &viewport,
+                    &primitive,
+                    &debug.overlay(),
+                );
+
+                context.swap_buffers().expect("Swap buffers");
+                debug.render_finished();
+
+                if new_mouse_interaction != mouse_interaction {
+                    context.window().set_cursor_icon(
+                        conversion::mouse_interaction(new_mouse_interaction),
+                    );
+
+                    mouse_interaction = new_mouse_interaction;
+                }
+
+                // TODO: Handle animations!
+                // Maybe we can use `ControlFlow::WaitUntil` for this.
+            }
+            event::Event::WindowEvent {
+                event: window_event,
+                ..
+            } => {
+                match window_event {
+                    WindowEvent::Resized(new_size) => {
+                        let size = Size::new(new_size.width, new_size.height);
+
+                        viewport = Viewport::with_physical_size(
+                            size,
+                            context.window().scale_factor(),
+                        );
+                        resized = true;
+                    }
+                    WindowEvent::CloseRequested => {
+                        *control_flow = ControlFlow::Exit;
+                    }
+                    WindowEvent::ModifiersChanged(new_modifiers) => {
+                        modifiers = new_modifiers;
+                    }
+                    #[cfg(target_os = "macos")]
+                    WindowEvent::KeyboardInput {
+                        input:
+                            glutin::event::KeyboardInput {
+                                virtual_keycode:
+                                    Some(glutin::event::VirtualKeyCode::Q),
+                                state: glutin::event::ElementState::Pressed,
+                                ..
+                            },
+                        ..
+                    } if modifiers.logo() => {
+                        *control_flow = ControlFlow::Exit;
+                    }
+                    #[cfg(feature = "debug")]
+                    WindowEvent::KeyboardInput {
+                        input:
+                            glutin::event::KeyboardInput {
+                                virtual_keycode:
+                                    Some(glutin::event::VirtualKeyCode::F12),
+                                state: glutin::event::ElementState::Pressed,
+                                ..
+                            },
+                        ..
+                    } => debug.toggle(),
+                    _ => {}
+                }
+
+                if let Some(event) = conversion::window_event(
+                    &window_event,
+                    viewport.scale_factor(),
+                    modifiers,
+                ) {
+                    events.push(event);
+                }
+            }
+            _ => {
+                *control_flow = ControlFlow::Wait;
+            }
+        })
+    }
+}
+
+fn build_user_interface<'a, A: Application>(
+    application: &'a mut A,
+    cache: Cache,
+    renderer: &mut <A::Compositor as window::GLCompositor>::Renderer,
+    size: Size,
+    debug: &mut Debug,
+) -> UserInterface<
+    'a,
+    A::Message,
+    <A::Compositor as window::GLCompositor>::Renderer,
+> {
+    debug.view_started();
+    let view = application.view();
+    debug.view_finished();
+
+    debug.layout_started();
+    let user_interface = UserInterface::build(view, size, cache, renderer);
+    debug.layout_finished();
+
+    user_interface
+}

glutin/src/lib.rs

@@ -0,0 +1,15 @@
+//#![deny(missing_docs)]
+#![deny(missing_debug_implementations)]
+#![deny(unused_results)]
+#![deny(unsafe_code)]
+#![forbid(rust_2018_idioms)]
+
+#[doc(no_inline)]
+pub use iced_native::*;
+
+mod application;
+
+pub use application::Application;
+
+pub use iced_winit::settings::{self, Settings};
+pub use iced_winit::Mode;

graphics/Cargo.toml

@@ -9,6 +9,7 @@ canvas = ["lyon"]
 font-source = ["font-kit"]
 font-fallback = []
 font-icons = []
+opengl = []
 
 [dependencies]
 bytemuck = "1.2"

graphics/src/layer.rs

@@ -6,6 +6,7 @@ use crate::{
     Vector, VerticalAlignment, Viewport,
 };
 
+#[derive(Debug, Clone)]
 pub struct Layer<'a> {
     pub bounds: Rectangle,
     pub quads: Vec<Quad>,

graphics/src/window.rs

@@ -1,3 +1,9 @@
 mod compositor;
 
+#[cfg(feature = "opengl")]
+mod gl_compositor;
+
 pub use compositor::Compositor;
+
+#[cfg(feature = "opengl")]
+pub use gl_compositor::GLCompositor;

graphics/src/window/gl_compositor.rs

@@ -0,0 +1,24 @@
+use crate::{Size, Viewport};
+use iced_native::mouse;
+
+use core::ffi::c_void;
+
+pub trait GLCompositor: Sized {
+    type Renderer: iced_native::Renderer;
+    type Settings: Default;
+
+    unsafe fn new(
+        settings: Self::Settings,
+        loader_function: impl FnMut(&str) -> *const c_void,
+    ) -> (Self, Self::Renderer);
+
+    fn resize_viewport(&mut self, physical_size: Size<u32>);
+
+    fn draw<T: AsRef<str>>(
+        &mut self,
+        renderer: &mut Self::Renderer,
+        viewport: &Viewport,
+        output: &<Self::Renderer as iced_native::Renderer>::Output,
+        overlay: &[T],
+    ) -> mouse::Interaction;
+}

src/application.rs

@@ -188,19 +188,19 @@ pub trait Application: Sized {
     {
         #[cfg(not(target_arch = "wasm32"))]
         {
-            let wgpu_settings = iced_wgpu::Settings {
+            let glow_settings = iced_glow::Settings {
                 default_font: settings.default_font,
                 antialiasing: if settings.antialiasing {
-                    Some(iced_wgpu::settings::Antialiasing::MSAAx4)
+                    Some(iced_glow::settings::Antialiasing::MSAAx4)
                 } else {
                     None
                 },
-                ..iced_wgpu::Settings::default()
+                ..iced_glow::Settings::default()
             };
 
-            <Instance<Self> as iced_winit::Application>::run(
+            <Instance<Self> as iced_glutin::Application>::run(
                 settings.into(),
-                wgpu_settings,
+                glow_settings,
             );
         }
 
@@ -212,11 +212,11 @@ pub trait Application: Sized {
 struct Instance<A: Application>(A);
 
 #[cfg(not(target_arch = "wasm32"))]
-impl<A> iced_winit::Application for Instance<A>
+impl<A> iced_glutin::Application for Instance<A>
 where
     A: Application,
 {
-    type Compositor = iced_wgpu::window::Compositor;
+    type Compositor = iced_glow::window::Compositor;
     type Executor = A::Executor;
     type Flags = A::Flags;
     type Message = A::Message;
@@ -231,10 +231,10 @@ where
         self.0.title()
     }
 
-    fn mode(&self) -> iced_winit::Mode {
+    fn mode(&self) -> iced_glutin::Mode {
         match self.0.mode() {
-            window::Mode::Windowed => iced_winit::Mode::Windowed,
+            window::Mode::Windowed => iced_glutin::Mode::Windowed,
-            window::Mode::Fullscreen => iced_winit::Mode::Fullscreen,
+            window::Mode::Fullscreen => iced_glutin::Mode::Fullscreen,
         }
     }
 

src/element.rs

@@ -3,7 +3,7 @@
 /// This is an alias of an `iced_native` element with a default `Renderer`.
 #[cfg(not(target_arch = "wasm32"))]
 pub type Element<'a, Message> =
-    iced_winit::Element<'a, Message, iced_wgpu::Renderer>;
+    iced_glutin::Element<'a, Message, iced_glow::Renderer>;
 
 #[cfg(target_arch = "wasm32")]
 pub use iced_web::Element;

src/lib.rs

@@ -207,7 +207,7 @@ pub use sandbox::Sandbox;
 pub use settings::Settings;
 
 #[cfg(not(target_arch = "wasm32"))]
-use iced_winit as runtime;
+use iced_glutin as runtime;
 
 #[cfg(target_arch = "wasm32")]
 use iced_web as runtime;

src/settings.rs

@@ -51,10 +51,10 @@ impl<Flags> Settings<Flags> {
 }
 
 #[cfg(not(target_arch = "wasm32"))]
-impl<Flags> From<Settings<Flags>> for iced_winit::Settings<Flags> {
+impl<Flags> From<Settings<Flags>> for iced_glutin::Settings<Flags> {
-    fn from(settings: Settings<Flags>) -> iced_winit::Settings<Flags> {
+    fn from(settings: Settings<Flags>) -> iced_glutin::Settings<Flags> {
-        iced_winit::Settings {
+        iced_glutin::Settings {
-            window: iced_winit::settings::Window {
+            window: iced_glutin::settings::Window {
                 size: settings.window.size,
                 resizable: settings.window.resizable,
                 decorations: settings.window.decorations,

src/widget.rs

@@ -18,29 +18,27 @@
 //! [`text_input::State`]: text_input/struct.State.html
 #[cfg(not(target_arch = "wasm32"))]
 mod platform {
-    pub use iced_wgpu::widget::{
+    pub use iced_glow::widget::{
         button, checkbox, container, pane_grid, progress_bar, radio,
-        scrollable, slider, text_input, Text,
+        scrollable, slider, text_input, Column, Row, Space, Text,
     };
 
     #[cfg(feature = "canvas")]
     #[cfg_attr(docsrs, doc(cfg(feature = "canvas")))]
-    pub use iced_wgpu::widget::canvas;
+    pub use iced_glow::widget::canvas;
 
     #[cfg_attr(docsrs, doc(cfg(feature = "image")))]
     pub mod image {
         //! Display images in your user interface.
-        pub use iced_winit::image::{Handle, Image};
+        pub use iced_glutin::image::{Handle, Image};
     }
 
     #[cfg_attr(docsrs, doc(cfg(feature = "svg")))]
     pub mod svg {
         //! Display vector graphics in your user interface.
-        pub use iced_winit::svg::{Handle, Svg};
+        pub use iced_glutin::svg::{Handle, Svg};
     }
 
-    pub use iced_winit::Space;
-
     #[doc(no_inline)]
     pub use {
         button::Button, checkbox::Checkbox, container::Container, image::Image,
@@ -52,18 +50,6 @@ mod platform {
     #[cfg(feature = "canvas")]
     #[doc(no_inline)]
     pub use canvas::Canvas;
-
-    /// A container that distributes its contents vertically.
-    ///
-    /// This is an alias of an `iced_native` column with a default `Renderer`.
-    pub type Column<'a, Message> =
-        iced_winit::Column<'a, Message, iced_wgpu::Renderer>;
-
-    /// A container that distributes its contents horizontally.
-    ///
-    /// This is an alias of an `iced_native` row with a default `Renderer`.
-    pub type Row<'a, Message> =
-        iced_winit::Row<'a, Message, iced_wgpu::Renderer>;
 }
 
 #[cfg(target_arch = "wasm32")]

winit/src/application.rs

@@ -129,7 +129,6 @@ pub trait Application: Sized {
         use winit::{
             event::{self, WindowEvent},
             event_loop::{ControlFlow, EventLoop},
-            window::WindowBuilder,
         };
 
         let mut debug = Debug::new();
@@ -155,32 +154,11 @@ pub trait Application: Sized {
         let mut title = application.title();
         let mut mode = application.mode();
 
-        let window = {
+        let window = settings
-            let mut window_builder = WindowBuilder::new();
+            .window
-
+            .into_builder(&title, mode, event_loop.primary_monitor())
-            let (width, height) = settings.window.size;
+            .build(&event_loop)
-
+            .expect("Open window");
-            window_builder = window_builder
-                .with_title(&title)
-                .with_inner_size(winit::dpi::LogicalSize { width, height })
-                .with_resizable(settings.window.resizable)
-                .with_decorations(settings.window.decorations)
-                .with_fullscreen(conversion::fullscreen(
-                    event_loop.primary_monitor(),
-                    mode,
-                ));
-
-            #[cfg(target_os = "windows")]
-            {
-                use winit::platform::windows::WindowBuilderExtWindows;
-
-                if let Some(parent) = settings.window.platform_specific.parent {
-                    window_builder = window_builder.with_parent_window(parent);
-                }
-            }
-
-            window_builder.build(&event_loop).expect("Open window")
-        };
 
         let physical_size = window.inner_size();
         let mut viewport = Viewport::with_physical_size(

winit/src/lib.rs

@@ -15,7 +15,7 @@
 //! [`winit`]: https://github.com/rust-windowing/winit
 //! [`Application`]: trait.Application.html
 //! [`conversion`]: conversion
-#![deny(missing_docs)]
+//#![deny(missing_docs)]
 #![deny(missing_debug_implementations)]
 #![deny(unused_results)]
 #![forbid(unsafe_code)]
@@ -44,8 +44,7 @@ mod debug;
 
 pub use application::Application;
 pub use clipboard::Clipboard;
+pub use debug::Debug;
 pub use mode::Mode;
+pub use proxy::Proxy;
 pub use settings::Settings;
-
-use debug::Debug;
-use proxy::Proxy;

winit/src/proxy.rs

@@ -5,6 +5,7 @@ use iced_native::futures::{
 };
 use std::pin::Pin;
 
+#[derive(Debug)]
 pub struct Proxy<Message: 'static> {
     raw: winit::event_loop::EventLoopProxy<Message>,
 }

winit/src/settings.rs

@@ -8,6 +8,11 @@ mod platform;
 
 pub use platform::PlatformSpecific;
 
+use crate::conversion;
+use crate::Mode;
+use winit::monitor::MonitorHandle;
+use winit::window::WindowBuilder;
+
 /// The settings of an application.
 #[derive(Debug, Clone, Copy, PartialEq, Default)]
 pub struct Settings<Flags> {
@@ -38,6 +43,37 @@ pub struct Window {
     pub platform_specific: platform::PlatformSpecific,
 }
 
+impl Window {
+    pub fn into_builder(
+        self,
+        title: &str,
+        mode: Mode,
+        primary_monitor: MonitorHandle,
+    ) -> WindowBuilder {
+        let mut window_builder = WindowBuilder::new();
+
+        let (width, height) = self.size;
+
+        window_builder = window_builder
+            .with_title(title)
+            .with_inner_size(winit::dpi::LogicalSize { width, height })
+            .with_resizable(self.resizable)
+            .with_decorations(self.decorations)
+            .with_fullscreen(conversion::fullscreen(primary_monitor, mode));
+
+        #[cfg(target_os = "windows")]
+        {
+            use winit::platform::windows::WindowBuilderExtWindows;
+
+            if let Some(parent) = self.platform_specific.parent {
+                window_builder = window_builder.with_parent_window(parent);
+            }
+        }
+
+        window_builder
+    }
+}
+
 impl Default for Window {
     fn default() -> Window {
         Window {

winit/src/size.rs

@@ -1,30 +0,0 @@
-pub struct Size {
-    physical: winit::dpi::PhysicalSize<u32>,
-    logical: winit::dpi::LogicalSize<f64>,
-    scale_factor: f64,
-}
-
-impl Size {
-    pub fn new(
-        physical: winit::dpi::PhysicalSize<u32>,
-        scale_factor: f64,
-    ) -> Size {
-        Size {
-            logical: physical.to_logical(scale_factor),
-            physical,
-            scale_factor,
-        }
-    }
-
-    pub fn physical(&self) -> winit::dpi::PhysicalSize<u32> {
-        self.physical
-    }
-
-    pub fn logical(&self) -> winit::dpi::LogicalSize<f64> {
-        self.logical
-    }
-
-    pub fn scale_factor(&self) -> f64 {
-        self.scale_factor
-    }
-}