KitTextArea
Native multiline editor for a complete text buffer.
Bind text to a buffer and choose min-lines, max-lines and resize-policy. Use KitVirtualTextView for large documents browsed line by line.
It presets TextLineMode.multiline and ResizePolicy.auto-grow, then scrolls beyond the maximum height. Enter remains text input; it does not emit the single-line field’s Enter commit request.
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 { KitTextArea, KitTheme, KitThemes } from "@kit/kit.slint";
export component Example inherits Window {
title: "KitTextArea example";
preferred-width: 420px;
preferred-height: 240px;
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: "Text Area"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
KitTextArea { theme: root.theme; label: "Notes"; text: "A native editor preserves selection, undo and input methods."; 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; }
}
}
Public API
Inherits KitTextField. The declarations below come from the component source. Parent properties remain available; see the controller guide for state management.