Struct QrOptions 

pub struct QrOptions {
    pub size: Option<u32>,
    pub margin: Option<u32>,
    pub ecc: Option<QrEcc>,
    pub domain: Option<String>,
    pub refresh: Option<QrRefresh>,
}

QR rendering options. All fields are optional — omit to use server defaults.

Fields

size: Option<u32>

Module size in pixels. Server clamps to 1–32. Default: 8.

margin: Option<u32>

Quiet-zone modules. Server clamps to 0–16. Default: 4.

ecc: Option<QrEcc>

Error-correction level.

domain: Option<String>

Force the QR to encode a specific verified custom domain.

refresh: Option<QrRefresh>

Cache-bust token.

Implementations

impl QrOptions

pub fn new() -> Self

Build the empty options bag.

pub fn with_size(self, size: u32) -> Self

Builder — set size.

pub fn with_margin(self, margin: u32) -> Self

Builder — set margin.

pub fn with_ecc(self, ecc: QrEcc) -> Self

Builder — set ecc.

pub fn with_domain(self, domain: impl Into<String>) -> Self

Builder — set domain.

pub fn with_refresh(self, refresh: QrRefresh) -> Self

Builder — set refresh.

pub fn is_empty(&self) -> bool

true when no options are set.

pub fn to_query_pairs(&self) -> Vec<(&'static str, String)>

Render this options bag into (name, value) pairs for a query string.

Trait Implementations

impl Clone for QrOptions

fn clone(&self) -> QrOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QrOptions

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

Formats the value using the given formatter.

impl Default for QrOptions

fn default() -> QrOptions

Returns the “default value” for a type.

impl Eq for QrOptions

impl PartialEq for QrOptions

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for QrOptions