Enum TextFieldLineLimits 

pub enum TextFieldLineLimits {
    SingleLine,
    MultiLine {
        min_lines: usize,
        max_lines: usize,
    },
}

Line limit configuration for text fields.

Controls whether a text field allows multiple lines of input and how many lines are visible at minimum and maximum.

SingleLine

When SingleLine is used:

• Newline characters (\n) are blocked from input
• Pasted text has newlines replaced with spaces
• The text field scrolls horizontally if content exceeds width
• The Enter key does NOT insert a newline (may trigger submit action)

MultiLine

When MultiLine is used:

• Newline characters are allowed
• The text field scrolls vertically if content exceeds visible lines
• min_lines controls minimum visible height (default: 1)
• max_lines controls maximum visible height before scrolling (default: unlimited)

Example

use cranpose_foundation::text::TextFieldLineLimits;

// Single-line text field (like a search box)
let single = TextFieldLineLimits::SingleLine;

// Multi-line with default settings
let multi = TextFieldLineLimits::default();

// Multi-line with 3-5 visible lines
let constrained = TextFieldLineLimits::MultiLine { min_lines: 3, max_lines: 5 };

Variants

SingleLine

Single line input - no newlines allowed, horizontal scrolling.

MultiLine

Multi-line input with optional line constraints.

• min_lines: Minimum number of visible lines (affects minimum height)
• max_lines: Maximum number of visible lines before scrolling

Fields

min_lines: usize

Minimum visible lines (default: 1)

max_lines: usize

Maximum visible lines before scrolling (default: unlimited)

Implementations

impl TextFieldLineLimits

pub const DEFAULT: Self

Default multi-line with no constraints (1 line minimum, unlimited maximum).

pub fn is_single_line(&self) -> bool

Returns true if this is single-line mode.

pub fn is_multi_line(&self) -> bool

Returns true if this is multi-line mode.

pub fn min_lines(&self) -> usize

Returns the minimum number of lines (1 for SingleLine).

pub fn max_lines(&self) -> usize

Returns the maximum number of lines (1 for SingleLine, configured value for MultiLine).

Trait Implementations

impl Clone for TextFieldLineLimits

fn clone(&self) -> TextFieldLineLimits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextFieldLineLimits

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

Formats the value using the given formatter.

impl Default for TextFieldLineLimits

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for TextFieldLineLimits

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for TextFieldLineLimits

impl Eq for TextFieldLineLimits

impl StructuralPartialEq for TextFieldLineLimits