Add game_of_life example

RIP John Conway

examples/game_of_life/src/style.rs

@@ -0,0 +1,96 @@
+use iced::{button, container, slider, Background, Color};
+
+const ACTIVE: Color = Color::from_rgb(
+    0x72 as f32 / 255.0,
+    0x89 as f32 / 255.0,
+    0xDA as f32 / 255.0,
+);
+
+const HOVERED: Color = Color::from_rgb(
+    0x67 as f32 / 255.0,
+    0x7B as f32 / 255.0,
+    0xC4 as f32 / 255.0,
+);
+
+pub struct Container;
+
+impl container::StyleSheet for Container {
+    fn style(&self) -> container::Style {
+        container::Style {
+            background: Some(Background::Color(Color::from_rgb8(
+                0x36, 0x39, 0x3F,
+            ))),
+            text_color: Some(Color::WHITE),
+            ..container::Style::default()
+        }
+    }
+}
+
+pub struct Button;
+
+impl button::StyleSheet for Button {
+    fn active(&self) -> button::Style {
+        button::Style {
+            background: Some(Background::Color(ACTIVE)),
+            border_radius: 3,
+            text_color: Color::WHITE,
+            ..button::Style::default()
+        }
+    }
+
+    fn hovered(&self) -> button::Style {
+        button::Style {
+            background: Some(Background::Color(HOVERED)),
+            text_color: Color::WHITE,
+            ..self.active()
+        }
+    }
+
+    fn pressed(&self) -> button::Style {
+        button::Style {
+            border_width: 1,
+            border_color: Color::WHITE,
+            ..self.hovered()
+        }
+    }
+}
+
+pub struct Slider;
+
+impl slider::StyleSheet for Slider {
+    fn active(&self) -> slider::Style {
+        slider::Style {
+            rail_colors: (ACTIVE, Color { a: 0.1, ..ACTIVE }),
+            handle: slider::Handle {
+                shape: slider::HandleShape::Circle { radius: 9 },
+                color: ACTIVE,
+                border_width: 0,
+                border_color: Color::TRANSPARENT,
+            },
+        }
+    }
+
+    fn hovered(&self) -> slider::Style {
+        let active = self.active();
+
+        slider::Style {
+            handle: slider::Handle {
+                color: HOVERED,
+                ..active.handle
+            },
+            ..active
+        }
+    }
+
+    fn dragging(&self) -> slider::Style {
+        let active = self.active();
+
+        slider::Style {
+            handle: slider::Handle {
+                color: Color::from_rgb(0.85, 0.85, 0.85),
+                ..active.handle
+            },
+            ..active
+        }
+    }
+}