custom button style

[Virgil-N]

Is there an existing issue for this?

• I have searched the existing issues.

Is this issue related to iced?

• My hardware is compatible and my graphics drivers are up-to-date.

What happened?

Can not set custom style for button.

pub struct DefaultButton(pub Palette);
impl button::StyleSheet for DefaultButton {
    type Style = button::Appearance;

    fn active(&self, style: &Self::Style) -> button::Appearance {
        button::Appearance {
            text_color: self.0.text,
            border_radius: 2.0,
            ..button::Appearance::default()
        }
    }

    fn hovered(&self, style: &Self::Style) -> button::Appearance {
        button::Appearance {
            background: Some(Background::Color(Color {
                a: 0.25,
                ..self.0.background
            })),
            text_color: self.0.text,
            ..self.active(style)
        }
    }

    fn pressed(&self, style: &Self::Style) -> button::Appearance {
        button::Appearance {
            shadow_offset: Vector::default(),
            ..self.active(style)
        }
    }

    fn disabled(&self, style: &Self::Style) -> button::Appearance {
        button::Appearance {
            text_color: Color {
                a: 0.25,
                ..self.0.text
            },
            ..self.active(style)
        }
    }
}

button("Home")
                .width(Length::Fill)
                .style(styles::DefaultButton) // error

---

error:

type mismatch resolving `<iced::Theme as iced::widget::button::StyleSheet>::Style == fn(Palette) -> DefaultButton {DefaultButton}`
expected enum `iced::theme::Button`
found fn item `fn(Palette) -> DefaultButton {DefaultButton}`

But it works well with 0.6.

What is the expected behavior?

Show no errors.

Version

0.7

Operative System

macOS

Do you have any log output?

no.

[Virgil-N]

button("Home")
                .width(Length::Fill)
                .style(theme::Button::Custom(styles::DefaultButton)) // error

mismatched types
expected struct `std::boxed::Box<(dyn iced::widget::button::StyleSheet<Style = iced::Theme> + 'static)>`
  found fn item `fn(Palette) -> DefaultButton {DefaultButton}`

gui.rs(159, 24): arguments to this enum variant are incorrect
theme.rs(139, 5): tuple variant defined here

[Virgil-N]

So how to fix this error?

[alorylic]

Here's what you should do

pub struct DefaultButton(pub Palette);
impl button::StyleSheet for DefaultButton {
    type Style = Theme;
   // ...
}

button("Home")
        .width(Length::Fill)
        .style(theme::Button::Custom(Box::new(styles::DefaultButton{})));
```

[Virgil-N]

error: missing field 0 in initializer of DefaultButton missing 0

[Virgil-N]

Does anyone knows how to set custom style for button?

[alorylic]

兄弟，我DefaultButton初始化写漏了你就不会加上吗

[Virgil-N]

pub struct DefaultButton(pub Palette);
impl button::StyleSheet for DefaultButton {
type Style = Theme; // ---->这个我没改成Theme
// ...
}

```.style(theme::Button::Custom(Box::new(styles::DefaultButton(self.theme.palette())))```
一样报错啊，

你完整咋写的？

[alorylic]

这里就是要改成Theme才行啊

[Virgil-N]

👍