Draft `styling` example

5 files changed, 298 insertions, 6 deletions

diff --git a/core/src/vector.rs b/core/src/vector.rs
index 1c09ee3e..75c77dbd 100644
--- a/core/src/vector.rs
+++ b/core/src/vector.rs
@@ -32,6 +32,17 @@ where
     }
 }
 
+impl<T> std::ops::Mul for Vector<T>
+where
+    T: std::ops::Mul<Output = T>,
+{
+    type Output = Self;
+
+    fn mul(self, b: Self) -> Self {
+        Self::new(self.x * b.x, self.y * b.y)
+    }
+}
+
 impl<T> Default for Vector<T>
 where
     T: Default,
diff --git a/examples/styling.rs b/examples/styling.rs
new file mode 100644
index 00000000..95590f2c
--- /dev/null
+++ b/examples/styling.rs
@@ -0,0 +1,282 @@
+use iced::{
+    button, text_input, Button, Column, Container, Element, Length, Radio, Row,
+    Sandbox, Settings, Text, TextInput,
+};
+
+pub fn main() {
+    Styling::run(Settings::default())
+}
+
+struct Styling {
+    theme: style::Theme,
+    input: text_input::State,
+    input_value: String,
+    button: button::State,
+}
+
+#[derive(Debug, Clone)]
+enum Message {
+    ThemeChanged(style::Theme),
+    InputChanged(String),
+    ButtonPressed,
+}
+
+impl Sandbox for Styling {
+    type Message = Message;
+
+    fn new() -> Self {
+        Styling {
+            theme: style::Theme::Light,
+            input: text_input::State::default(),
+            input_value: String::new(),
+            button: button::State::default(),
+        }
+    }
+
+    fn title(&self) -> String {
+        String::from("Styling - Iced")
+    }
+
+    fn update(&mut self, message: Message) {
+        match message {
+            Message::ThemeChanged(theme) => self.theme = theme,
+            Message::InputChanged(value) => self.input_value = value,
+            Message::ButtonPressed => (),
+        }
+    }
+
+    fn view(&mut self) -> Element<Message> {
+        let choose_theme = style::Theme::ALL.iter().fold(
+            Column::new()
+                .width(Length::Shrink)
+                .spacing(10)
+                .push(Text::new("Choose a theme:").width(Length::Shrink)),
+            |column, theme| {
+                column.push(Radio::new(
+                    *theme,
+                    &format!("{:?}", theme),
+                    Some(self.theme),
+                    Message::ThemeChanged,
+                ))
+            },
+        );
+
+        let text_input = TextInput::new(
+            &mut self.input,
+            "Type something...",
+            &self.input_value,
+            Message::InputChanged,
+        )
+        .padding(10)
+        .size(20)
+        .style(self.theme);
+
+        let button = Button::new(&mut self.button, Text::new("Submit"))
+            .padding(10)
+            .on_press(Message::ButtonPressed)
+            .style(self.theme);
+
+        let content = Column::new()
+            .spacing(20)
+            .padding(20)
+            .max_width(600)
+            .push(choose_theme)
+            .push(Row::new().spacing(10).push(text_input).push(button));
+
+        Container::new(content)
+            .width(Length::Fill)
+            .height(Length::Fill)
+            .center_x()
+            .center_y()
+            .style(self.theme)
+            .into()
+    }
+}
+
+mod style {
+    use iced::{button, container, text_input};
+
+    #[derive(Debug, Clone, Copy, PartialEq, Eq)]
+    pub enum Theme {
+        Light,
+        Dark,
+    }
+
+    impl Theme {
+        pub const ALL: [Theme; 2] = [Theme::Light, Theme::Dark];
+    }
+
+    impl From<Theme> for Box<dyn container::StyleSheet> {
+        fn from(theme: Theme) -> Self {
+            match theme {
+                Theme::Light => light::Container.into(),
+                Theme::Dark => dark::Container.into(),
+            }
+        }
+    }
+
+    impl From<Theme> for Box<dyn text_input::StyleSheet> {
+        fn from(theme: Theme) -> Self {
+            match theme {
+                Theme::Light => light::TextInput.into(),
+                Theme::Dark => dark::TextInput.into(),
+            }
+        }
+    }
+
+    impl From<Theme> for Box<dyn button::StyleSheet> {
+        fn from(theme: Theme) -> Self {
+            match theme {
+                Theme::Light => light::Button.into(),
+                Theme::Dark => dark::Button.into(),
+            }
+        }
+    }
+
+    mod light {
+        use iced::{button, container, text_input, Background, Color, Vector};
+
+        pub struct Container;
+
+        impl container::StyleSheet for Container {
+            fn style(&self) -> container::Style {
+                container::Style::default()
+            }
+        }
+
+        pub struct TextInput;
+
+        impl text_input::StyleSheet for TextInput {
+            fn active(&self) -> text_input::Style {
+                text_input::Style {
+                    background: Background::Color(Color::WHITE),
+                    border_radius: 5,
+                    border_width: 1,
+                    border_color: Color::from_rgb(0.7, 0.7, 0.7),
+                }
+            }
+
+            fn focused(&self) -> text_input::Style {
+                text_input::Style {
+                    border_width: 1,
+                    border_color: Color::from_rgb(0.5, 0.5, 0.5),
+                    ..self.active()
+                }
+            }
+
+            fn placeholder_color(&self) -> Color {
+                Color::from_rgb(0.7, 0.7, 0.7)
+            }
+
+            fn value_color(&self) -> Color {
+                Color::from_rgb(0.3, 0.3, 0.3)
+            }
+        }
+
+        pub struct Button;
+
+        impl button::StyleSheet for Button {
+            fn active(&self) -> button::Style {
+                button::Style {
+                    background: Some(Background::Color(Color::from_rgb(
+                        0.11, 0.42, 0.87,
+                    ))),
+                    border_radius: 12,
+                    shadow_offset: Vector::new(1.0, 1.0),
+                    text_color: Color::from_rgb8(0xEE, 0xEE, 0xEE),
+                    ..button::Style::default()
+                }
+            }
+
+            fn hovered(&self) -> button::Style {
+                button::Style {
+                    text_color: Color::WHITE,
+                    shadow_offset: Vector::new(1.0, 2.0),
+                    ..self.active()
+                }
+            }
+        }
+    }
+
+    mod dark {
+        use iced::{button, container, text_input, Background, Color};
+
+        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 TextInput;
+
+        impl text_input::StyleSheet for TextInput {
+            fn active(&self) -> text_input::Style {
+                text_input::Style {
+                    background: Background::Color(Color::from_rgb8(
+                        0x40, 0x44, 0x4B,
+                    )),
+                    border_radius: 2,
+                    border_width: 0,
+                    border_color: Color::TRANSPARENT,
+                }
+            }
+
+            fn focused(&self) -> text_input::Style {
+                text_input::Style {
+                    border_width: 1,
+                    border_color: Color::from_rgb8(0x6F, 0xFF, 0xE9),
+                    ..self.active()
+                }
+            }
+
+            fn hovered(&self) -> text_input::Style {
+                text_input::Style {
+                    border_width: 1,
+                    border_color: Color::from_rgb8(0x5B, 0xC0, 0xBE),
+                    ..self.focused()
+                }
+            }
+
+            fn placeholder_color(&self) -> Color {
+                Color::from_rgb(0.7, 0.7, 0.7)
+            }
+
+            fn value_color(&self) -> Color {
+                Color::WHITE
+            }
+        }
+
+        pub struct Button;
+
+        impl button::StyleSheet for Button {
+            fn active(&self) -> button::Style {
+                button::Style {
+                    background: Some(Background::Color(Color::from_rgb8(
+                        0x72, 0x89, 0xDA,
+                    ))),
+                    border_radius: 3,
+                    text_color: Color::WHITE,
+                    ..button::Style::default()
+                }
+            }
+
+            fn hovered(&self) -> button::Style {
+                button::Style {
+                    background: Some(Background::Color(Color::from_rgb8(
+                        0x67, 0x7B, 0xC4,
+                    ))),
+                    text_color: Color::WHITE,
+                    ..self.active()
+                }
+            }
+        }
+    }
+}
diff --git a/style/src/button.rs b/style/src/button.rs
index 03c9ab32..93c27860 100644
--- a/style/src/button.rs
+++ b/style/src/button.rs
@@ -75,7 +75,7 @@ impl StyleSheet for Default {
             border_radius: 5,
             border_width: 0,
             border_color: Color::TRANSPARENT,
-            text_color: Color::BLACK,
+            text_color: Color::WHITE,
         }
     }
 }
diff --git a/style/src/text_input.rs b/style/src/text_input.rs
index 269b28db..c5123b20 100644
--- a/style/src/text_input.rs
+++ b/style/src/text_input.rs
@@ -29,14 +29,14 @@ pub trait StyleSheet {
     /// Produces the style of a focused text input.
     fn focused(&self) -> Style;
 
+    fn placeholder_color(&self) -> Color;
+
+    fn value_color(&self) -> Color;
+
     /// Produces the style of an hovered text input.
     fn hovered(&self) -> Style {
         self.focused()
     }
-
-    fn placeholder_color(&self) -> Color;
-
-    fn value_color(&self) -> Color;
 }
 
 struct Default;
diff --git a/wgpu/src/renderer/widget/button.rs b/wgpu/src/renderer/widget/button.rs
index eb5d7c09..a9209f64 100644
--- a/wgpu/src/renderer/widget/button.rs
+++ b/wgpu/src/renderer/widget/button.rs
@@ -19,7 +19,6 @@ impl iced_native::button::Renderer for Renderer {
     ) -> Self::Output {
         let is_mouse_over = bounds.contains(cursor_position);
 
-        // TODO: Render proper shadows
         let styling = if is_disabled {
             style.disabled()
         } else if is_mouse_over {