Enum qr_code::types::Version

pub enum Version {
    Normal(i16),
    Micro(i16),
}

In QR code terminology, Version means the size of the generated image. Larger version means the size of code is larger, and therefore can carry more information.

The smallest version is Version::Normal(1) of size 21×21, and the largest is Version::Normal(40) of size 177×177.

Variants

Normal(i16)

A normal QR code version. The parameter should be between 1 and 40.

Micro(i16)

A Micro QR code version. The parameter should be between 1 and 4.

Implementations

impl Version

pub fn width(self) -> i16

Get the number of “modules” on each size of the QR code, i.e. the width and height of the code.

pub fn fetch<T>(self, ec_level: EcLevel, table: &[[T; 4]]) -> QrResult<T>where T: PartialEq + Default + Copy,

Obtains an object from a hard-coded table.

The table must be a 44×4 array. The outer array represents the content for each version. The first 40 entry corresponds to QR code versions 1 to 40, and the last 4 corresponds to Micro QR code version 1 to 4. The inner array represents the content in each error correction level, in the order [L, M, Q, H].

Errors

If the entry compares equal to the default value of T, this method returns Err(QrError::InvalidVersion).

pub fn mode_bits_count(self) -> usize

The number of bits needed to encode the mode indicator.

pub fn is_micro(self) -> bool

Checks whether is version refers to a Micro QR code.

Trait Implementations

impl Clone for Version

fn clone(&self) -> Version

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Version

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

Formats the value using the given formatter.

impl PartialEq<Version> for Version

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for Version

impl Eq for Version

impl StructuralEq for Version

impl StructuralPartialEq for Version