slint/internal/compiler/widgets/common/spinbox-base.slint

// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial

export component SpinBoxBase {
    in property <int> minimum;
    in property <int> maximum: 100;
    in property <bool> enabled: true;
    in property <brush> color <=> i-text-input.color;
    in property <length> font-size <=> i-text-input.font-size;
    in property <int> font-weight <=> i-text-input.font-weight;
    in property <color> selection-background-color <=> i-text-input.selection-background-color;
    in property <color> selection-foreground-color <=> i-text-input.selection-foreground-color;
    in property <TextHorizontalAlignment> horizontal-alignment <=> i-text-input.horizontal-alignment;
    out property <bool> has-focus <=> i-text-input.has-focus;
    in-out property <int> value;

    callback edited(/* value */ int);

    public function update-value(value: int) {
        if (value >= root.minimum && value <= root.maximum) {
            root.value = value;
            root.edited(value);
        }

        i-text-input.text = root.value;
    }

    public function increment() {
        root.update-value(root.value + 1);
    }

    public function decrement() {
        root.update-value(root.value - 1);
    }

    private property <length> scroll-delta: 2px;

    forward-focus: i-text-input;

    i-text-input := TextInput {
        vertical-alignment: center;
        horizontal-alignment: left;
        text: root.value;
        enabled: root.enabled;
        width: 100%;
        height: 100%;

        accepted => {
            if (!self.text.is-float()) {
                self.text = root.value;
            }
        }

        edited => {
            if (self.text.is-float() && self.text.to-float() != root.value) {
                root.update-value(self.text.to-float());
            } else if (!self.text.is-float()) {
                self.text = root.value;
            }
        }
    }

    TouchArea {
        enabled: root.enabled;

        scroll-event(event) => {
            if (event.delta-y < 0) {
                root.increment();
                return accept;
            }

            if (event.delta-y > 0) {
                root.decrement();
                return accept;
            }

            return reject;
        }

        clicked => {
            i-text-input.focus();
        }
    }
}