Slint Kit Documentation

Numbers and money

KitDecimalField

Decimal draft field intended for an exact value.

Decimal draft field intended for an exact value.
Native screenshot of the same example, rendered with Skia.

Connect inherited callbacks to a controller using DecimalValue and an explicit locale policy. Keep the draft in text, including while input is incomplete.

It inherits KitIntegerField as a text presentation without floating-point conversion. Scale, rounding and bounds are domain decisions.

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
// Display projections are fixtures. Validate accepted domain values in Rust.
import { KitDecimalField, KitTheme, KitThemes } from "@kit/kit.slint";

export component Example inherits Window {
    title: "KitDecimalField example";
    preferred-width: 420px;
    preferred-height: 180px;
    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: "Decimal Field"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitDecimalField { theme: root.theme; label: "Distance"; text: "12.75"; edited(value) => { root.status = "Draft: " + value; } }
        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 KitIntegerField. The declarations below come from the component source. Parent properties remain available; see the controller guide for state management.

See also