Slint Kit Documentation

Layout

KitContainer

Centered column that limits reading width within available space.

Centered column that limits reading width within available space.
Native screenshot of the same example, rendered with Skia.

Choose ContentWidth.reading, .standard, .wide or .fluid, then gutter and gap using LayoutSpace. Give the parent a finite width.

The content limit does not become the container’s minimum width. available-width exposes the column’s actual width, while its height remains natural.

View source ↗

Complete example

This complete Slint file is a visual composition used to produce the screenshot above. Internal strings without a label property retain the kit’s default language; system dialogs follow the host platform. Projected state and callbacks requesting a decision need host wiring; the standalone fixture does not supply that controller. Set up the Rust project, then see the typed controller application for working editing, validation and selection.

// SPDX-License-Identifier: GPL-3.0-or-later
import { KitButton, KitContainer, KitTextField, KitTheme, KitThemes } from "@kit/kit.slint";

export component Example inherits Window {
    title: "KitContainer example";
    preferred-width: 480px;
    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: "Container"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitContainer { Text { text: "Team workspace"; color: root.theme.text-primary; font-size: 14px * root.theme.text-scale; wrap: word-wrap; }KitTextField { theme: root.theme; label: "Project name"; text: "Field notes"; }KitButton { theme: root.theme; text: "Save project"; activated => { root.status = "Action requested"; } } }
        if root.status != "": Text { text: root.status; color: root.theme.text-secondary; font-size: 12px * root.theme.text-scale; wrap: word-wrap; }
    }
}

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Public API

Inherits Rectangle. The declarations below come from the component source. Parent properties remain available; see the controller guide for state management.

Properties

Name Type Direction
content-width ContentWidth in
gutter LayoutSpace in
gap LayoutSpace in
available-width length out

Types and variants

Names below use Slint syntax. Shared Rust domain types live in slint_kit; presentation enums come from the Rust types generated by Slint.

Type Declaration
enum ContentWidth reading, standard, wide, fluid
enum LayoutSpace none, tight, compact, regular, roomy, section

See also