Struct QRCode

pub struct QRCode<'a, Theme = Theme>
where
    Theme: Catalog,
{ /* private fields */ }

A type of matrix barcode consisting of squares arranged in a grid which can be read by an imaging device, such as a camera.

Example

use iced::widget::qr_code;

struct State {
   data: qr_code::Data,
}

#[derive(Debug, Clone)]
enum Message {
    // ...
}

fn view(state: &State) -> Element<'_, Message> {
    qr_code(&state.data).into()
}

Implementations

impl<'a, Theme> QRCode<'a, Theme>

where Theme: Catalog,

pub fn new(data: &'a Data) -> QRCode<'a, Theme>

Creates a new QRCode with the provided Data.

pub fn cell_size(self, cell_size: impl Into<Pixels>) -> QRCode<'a, Theme>

Sets the size of the squares of the grid cell of the QRCode.

pub fn total_size(self, total_size: impl Into<Pixels>) -> QRCode<'a, Theme>

Sets the size of the entire QRCode.

pub fn style(self, style: impl Fn(&Theme) -> Style + 'a) -> QRCode<'a, Theme>

where <Theme as Catalog>::Class<'a>: From<Box<dyn Fn(&Theme) -> Style + 'a>>,

Sets the style of the QRCode.

pub fn class( self, class: impl Into<<Theme as Catalog>::Class<'a>>, ) -> QRCode<'a, Theme>

Sets the style class of the QRCode.

Trait Implementations

impl<'a, Message, Theme> From<QRCode<'a, Theme>> for Element<'a, Message, Theme, Renderer<Renderer, Renderer>>

where Theme: Catalog + 'a,

fn from( qr_code: QRCode<'a, Theme>, ) -> Element<'a, Message, Theme, Renderer<Renderer, Renderer>>

Converts to this type from the input type.

impl<Message, Theme> Widget<Message, Theme, Renderer<Renderer, Renderer>> for QRCode<'_, Theme>

where Theme: Catalog,

fn tag(&self) -> Tag

Returns the Tag of the Widget.

fn state(&self) -> State

Returns the State of the Widget.

fn size(&self) -> Size<Length>

Returns the Size of the Widget in lengths.

fn layout( &self, _tree: &mut Tree, _renderer: &Renderer<Renderer, Renderer>, _limits: &Limits, ) -> Node

Returns the layout::Node of the Widget.

fn draw( &self, tree: &Tree, renderer: &mut Renderer<Renderer, Renderer>, theme: &Theme, _style: &Style, layout: Layout<'_>, _cursor: Cursor, _viewport: &Rectangle, )

Draws the Widget using the associated Renderer.

fn size_hint(&self) -> Size<Length>

Returns a Size hint for laying out the Widget.

fn children(&self) -> Vec<Tree>

Returns the state Tree of the children of the Widget.

fn diff(&self, _tree: &mut Tree)

Reconciles the Widget with the provided Tree.

fn operate( &self, _state: &mut Tree, _layout: Layout<'_>, _renderer: &Renderer, _operation: &mut dyn Operation, )

Applies an Operation to the Widget.

fn update( &mut self, _state: &mut Tree, _event: &Event, _layout: Layout<'_>, _cursor: Cursor, _renderer: &Renderer, _clipboard: &mut dyn Clipboard, _shell: &mut Shell<'_, Message>, _viewport: &Rectangle, )

Processes a runtime Event.

fn mouse_interaction( &self, _state: &Tree, _layout: Layout<'_>, _cursor: Cursor, _viewport: &Rectangle, _renderer: &Renderer, ) -> Interaction

Returns the current mouse::Interaction of the Widget.

fn overlay<'a>( &'a mut self, _state: &'a mut Tree, _layout: Layout<'_>, _renderer: &Renderer, _translation: Vector, ) -> Option<Element<'a, Message, Theme, Renderer>>

Returns the overlay of the Widget, if there is any.