Draft Style and StyleSheet for Button

wgpu/src/renderer/widget/button.rs

@@ -1,50 +1,50 @@
-use crate::{Primitive, Renderer};
-use iced_native::{button, Background, MouseCursor, Point, Rectangle};
+use crate::{button::StyleSheet, Primitive, Renderer};
+use iced_native::{Background, MouseCursor, Point, Rectangle};
+
+impl iced_native::button::Renderer for Renderer {
+    type Style = Box<dyn StyleSheet>;
 
-impl button::Renderer for Renderer {
     fn draw(
         &mut self,
         bounds: Rectangle,
         cursor_position: Point,
         is_pressed: bool,
-        background: Option<Background>,
-        border_radius: u16,
+        style: &Box<dyn StyleSheet>,
         (content, _): Self::Output,
     ) -> Self::Output {
         let is_mouse_over = bounds.contains(cursor_position);
 
         // TODO: Render proper shadows
-        // TODO: Make hovering and pressed styles configurable
-        let shadow_offset = if is_mouse_over {
+        let styling = if is_mouse_over {
             if is_pressed {
-                0.0
+                style.pressed()
             } else {
-                2.0
+                style.hovered()
             }
         } else {
-            1.0
+            style.active()
         };
 
         (
-            match background {
+            match styling.background {
                 None => content,
                 Some(background) => Primitive::Group {
                     primitives: vec![
                         Primitive::Quad {
                             bounds: Rectangle {
                                 x: bounds.x + 1.0,
-                                y: bounds.y + shadow_offset,
+                                y: bounds.y + styling.shadow_offset,
                                 ..bounds
                             },
                             background: Background::Color(
                                 [0.0, 0.0, 0.0, 0.5].into(),
                             ),
-                            border_radius,
+                            border_radius: styling.border_radius,
                         },
                         Primitive::Quad {
                             bounds,
                             background,
-                            border_radius,
+                            border_radius: styling.border_radius,
                         },
                         content,
                     ],

wgpu/src/renderer/widget/button/style.rs

@@ -0,0 +1 @@
+