Struct Shader

pub struct Shader<Message, P>
where
    P: Program<Message>,
{ /* private fields */ }

Available on crate feature wgpu only.

A widget which can render custom shaders with Iced’s wgpu backend.

Must be initialized with a Program, which describes the internal widget state & how its Program::Primitives are drawn.

Implementations

impl<Message, P> Shader<Message, P>

where P: Program<Message>,

pub fn new(program: P) -> Shader<Message, P>

Create a new custom Shader.

pub fn width(self, width: impl Into<Length>) -> Shader<Message, P>

Set the width of the custom Shader.

pub fn height(self, height: impl Into<Length>) -> Shader<Message, P>

Set the height of the custom Shader.

Trait Implementations

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

where Message: 'a, Renderer: Renderer, P: Program<Message> + 'a,

fn from(custom: Shader<Message, P>) -> Element<'a, Message, Theme, Renderer>

Converts to this type from the input type.

impl<P, Message, Theme, Renderer> Widget<Message, Theme, Renderer> for Shader<Message, P>

where P: Program<Message>, Renderer: Renderer,

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, limits: &Limits, ) -> Node

Returns the layout::Node of the Widget.

fn update( &mut self, tree: &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, tree: &Tree, layout: Layout<'_>, cursor: Cursor, _viewport: &Rectangle, _renderer: &Renderer, ) -> Interaction

Returns the current mouse::Interaction of the Widget.

fn draw( &self, tree: &Tree, renderer: &mut Renderer, _theme: &Theme, _style: &Style, layout: Layout<'_>, cursor_position: 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 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.