Enum Keep 

pub enum Keep {
    Auto,
    Always,
    Integer(i32),
}

Keep values as per XSL-FO specification

Controls page and column breaking behavior to prevent orphans and widows.

Examples

use fop_layout::layout::Keep;

let keep = Keep::Always;
assert!(keep.is_active());
assert_eq!(keep.strength(), i32::MAX);

let keep_auto = Keep::Auto;
assert!(!keep_auto.is_active());

Variants

Auto

auto - no keep constraint

Always

always - always keep together/with-next/with-previous

Integer(i32)

Integer strength value (higher = stronger constraint)

Implementations

impl Keep

pub fn from_property_value(value: &PropertyValue) -> Self

Create a Keep value from a property value

pub fn is_active(&self) -> bool

Check if this is a keep constraint (not Auto)

pub fn strength(&self) -> i32

Get the strength of the keep constraint (higher = stronger)

Trait Implementations

impl Clone for Keep

fn clone(&self) -> Keep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Keep

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

Formats the value using the given formatter.

impl Default for Keep

fn default() -> Keep

Returns the “default value” for a type.

impl Display for Keep

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

Formats the value using the given formatter.

impl PartialEq for Keep

fn eq(&self, other: &Keep) -> 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 Keep

impl Eq for Keep

impl StructuralPartialEq for Keep