Struct Duration 

pub struct Duration { /* private fields */ }

Rhythmic duration measured in quarter lengths.

A quarter note has a quarter length of 1.0; an eighth note is 0.5; a whole note is 4.0.

Implementations

impl Duration

pub fn new(quarter_length: FloatType) -> Result<Self>

Creates a duration from a quarter-length value.

pub fn quarter() -> Self

Returns a quarter-note duration.

pub fn half() -> Self

Returns a half-note duration.

pub fn whole() -> Self

Returns a whole-note duration.

pub fn eighth() -> Self

Returns an eighth-note duration.

pub fn from_type(duration_type: DurationType) -> Self

Creates a duration from a note-value type.

pub fn from_type_with_dots(duration_type: DurationType, dots: u32) -> Self

Creates a duration from a note-value type carrying augmentation dots.

pub fn duration_type(&self) -> Option<DurationType>

Returns the note-value type whose undotted length this duration is.

Returns None for a length that is not a plain note value, such as a dotted or tuplet duration.

pub fn quarter_length(&self) -> FloatType

Returns the duration in quarter lengths.

pub fn set_quarter_length(&mut self, quarter_length: FloatType) -> Result<()>

Updates the duration in quarter lengths.

Trait Implementations

impl Clone for Duration

fn clone(&self) -> Duration

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Duration

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

Formats the value using the given formatter.

impl Default for Duration

fn default() -> Self

Returns the “default value” for a type.

impl From<Duration> for Rest

fn from(value: Duration) -> Self

Converts to this type from the input type.

impl PartialEq for Duration

fn eq(&self, other: &Self) -> 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 TryFrom<f64> for Duration

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: FloatType) -> Result<Self>

Performs the conversion.

impl TryFrom<i32> for Duration

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: IntegerType) -> Result<Self>

Performs the conversion.