Slint Kit Documentation

Form structure

Field Separator for Slint

KitFieldSeparator · Slint Kit 0.3.0

Subtle rule separating groups within a form.

Subtle rule separating groups within a form.
Native app built from the example below.

Try the component

Download the complete project, extract it and run cargo run --locked in its folder. Rust 1.92+; Slint Kit 0.3.0 from crates.io. You can also copy the four files below.

Run the app to inspect this composition and resize its window.

ui/app.slint

export { KitFormValidation, HtmlInputKind, NumberInputFormat, KitInputConstraints, KitValidationResult, KitValidityState } from "@kit/kit.slint";
// SPDX-License-Identifier: GPL-3.0-or-later
import { KitFieldSeparator, KitTextField, KitTheme, KitThemes } from "@kit/kit.slint";

export component App inherits Window {
    title: "KitFieldSeparator example";
    preferred-width: 420px;
    preferred-height: 290px;
    max-width: 100000px;
    max-height: 100000px;
    background: root.theme.canvas;
    in-out property <KitTheme> theme: KitThemes.light;
    in-out property <string> draft-0: "alex@example.com";
    VerticalLayout {
        padding: 24px; spacing: 16px; alignment: start;
        Text { text: "Field Separator"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitTextField { theme: root.theme; label: "Work email"; text <=> root.draft-0; } KitFieldSeparator { theme: root.theme; } KitTextField { theme: root.theme; label: "Personal email"; placeholder: "Optional"; }
    }
}

src/main.rs

// SPDX-License-Identifier: GPL-3.0-or-later
slint::include_modules!();

fn main() -> Result<(), slint::PlatformError> {
    let app = App::new()?;
    slint_kit::init_form_validation!(self, app);
    app.run()
}
Cargo.toml and build.rs

Cargo.toml

[package]
name = "slint-kit-field-separator-example"
version = "0.1.0"
edition = "2024"
rust-version = "1.92"
license = "GPL-3.0-or-later"
publish = false

[dependencies]
slint-kit = "=0.3.0"
slint = { version = "=1.18.1", default-features = false, features = ["std", "compat-1-18", "backend-winit", "renderer-skia", "accessibility"] }

[build-dependencies]
slint-kit-build = "=0.3.0"

[workspace]

build.rs

fn main() {
    slint_kit_build::compile("ui/app.slint").expect("compile component example");
}

Files: Cargo.toml · build.rs · ui/app.slint · src/main.rs

Insert it between sections of KitFieldGroup when the structure needs a visual separator. Supply the same theme as adjacent fields.

The line is one pixel high and uses border-subtle. It adds neither a heading nor section spacing.

View source ↗

Visual composition

The file below produces the screenshot. For controller-driven components, it shows the displayed state without supplying the Rust wiring. Create a project.

Show the screenshot source
Subtle rule separating groups within a form.
Native screenshot of the same example, rendered with Skia.
// SPDX-License-Identifier: GPL-3.0-or-later
import { KitFieldSeparator, KitTextField, KitTheme, KitThemes } from "@kit/kit.slint";

export component Example inherits Window {
    title: "KitFieldSeparator example";
    preferred-width: 420px;
    preferred-height: 290px;
    max-width: 100000px;
    max-height: 100000px;
    background: root.theme.canvas;
    in-out property <KitTheme> theme: KitThemes.light;
    in-out property <string> status;
    VerticalLayout {
        padding: 24px; spacing: 16px; alignment: start;
        Text { text: "Field Separator"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitTextField { theme: root.theme; label: "Work email"; text: "alex@example.com"; } KitFieldSeparator { theme: root.theme; } KitTextField { theme: root.theme; label: "Personal email"; placeholder: "Optional"; }
        if root.status != "": Text { text: root.status; color: root.theme.text-secondary; font-size: 12px * root.theme.text-scale; wrap: word-wrap; }
    }
}

Download this example

Public API

Inherits Rectangle.

Properties

Name Type Direction
theme KitTheme in

See also