Struct Form 

pub struct Form {
    pub id: WidgetId,
    pub fields: Vec<FormField>,
    pub focused_field: Option<WidgetId>,
    pub scroll_offset: usize,
    pub has_focus: bool,
}

Declarative description of a Form widget.

Note: Eq is not derivable because FieldKind::Slider carries f32 values. Apps should not put Form into hash maps or use struct equality for state diffing — compare field IDs and individual values instead.

Examples

use quadraui::{FieldKind, Form, FormField, FormFieldMeasure, FormHit, StyledText, WidgetId};

let form = Form {
    id: WidgetId::new("form:settings"),
    fields: vec![FormField {
        id: WidgetId::new("form:word_wrap"),
        label: StyledText::plain("Word wrap"),
        kind: FieldKind::Toggle { value: true },
        hint: StyledText::plain(""),
        disabled: false,
        validation: None,
    }],
    focused_field: None,
    scroll_offset: 0,
    has_focus: true,
};

let layout = form.layout(40.0, 10.0, |_| FormFieldMeasure::new(1.0));
assert_eq!(
    layout.hit_test(0.0, 0.0),
    FormHit::Field(WidgetId::new("form:word_wrap"))
);

Fields

id: WidgetId

fields: Vec<FormField>

focused_field: Option<WidgetId>

WidgetId of the field that currently has keyboard focus, or None if the form as a whole has focus but no field is active.

scroll_offset: usize

How many rows have been scrolled past. App-owned for now; a later primitive stage may lift this into ScrollState keyed by WidgetId the same way TreeView’s scroll will.

has_focus: bool

Implementations

impl Form

pub fn layout<F>( &self, viewport_width: f32, viewport_height: f32, measure_field: F, ) -> FormLayout

where F: Fn(usize) -> FormFieldMeasure,

Compute the full rendering + hit-test layout for this form.

Arguments

• viewport_width, viewport_height — form area dimensions.
• measure_field(i) — height for field i. Backends vary height by FieldKind (e.g. Label may be shorter than TextInput; fields with non-empty hint may be taller).

Row clipping

The last visible field’s bounds.height is clipped to what fits in the viewport (same semantics as TreeView::layout).

Trait Implementations

impl Clone for Form

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Form

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Form

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Form

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Form

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Form