Struct Themer

pub struct Themer<'a, Message, Theme, NewTheme, F, Renderer = Renderer>
where
    F: Fn(&Theme) -> NewTheme,
    Renderer: Renderer,
{ /* private fields */ }

A widget that applies any Theme to its contents.

This widget can be useful to leverage multiple Theme types in an application.

Implementations

impl<'a, Message, Theme, NewTheme, F, Renderer> Themer<'a, Message, Theme, NewTheme, F, Renderer>

where F: Fn(&Theme) -> NewTheme, Renderer: Renderer,

pub fn new<T>( to_theme: F, content: T, ) -> Themer<'a, Message, Theme, NewTheme, F, Renderer>

where T: Into<Element<'a, Message, NewTheme, Renderer>>,

Creates an empty Themer that applies the given Theme to the provided content.

pub fn text_color( self, f: fn(_: &NewTheme) -> Color, ) -> Themer<'a, Message, Theme, NewTheme, F, Renderer>

Sets the default text Color of the Themer.

pub fn background( self, f: fn(_: &NewTheme) -> Background, ) -> Themer<'a, Message, Theme, NewTheme, F, Renderer>

Sets the Background of the Themer.

Trait Implementations

impl<'a, Message, Theme, NewTheme, F, Renderer> From<Themer<'a, Message, Theme, NewTheme, F, Renderer>> for Element<'a, Message, Theme, Renderer>

where Message: 'a, Theme: 'a, NewTheme: 'a, F: Fn(&Theme) -> NewTheme + 'a, Renderer: 'a + Renderer,

fn from( themer: Themer<'a, Message, Theme, NewTheme, F, Renderer>, ) -> Element<'a, Message, Theme, Renderer>

Converts to this type from the input type.

impl<'a, Message, Theme, NewTheme, F, Renderer> Widget<Message, Theme, Renderer> for Themer<'a, Message, Theme, NewTheme, F, Renderer>

where F: Fn(&Theme) -> NewTheme, Renderer: Renderer,

fn tag(&self) -> Tag

Returns the Tag of the Widget.

fn state(&self) -> State

Returns the State of the Widget.

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

Returns the state Tree of the children of the Widget.

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

Reconciliates the Widget with the provided Tree.

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 operate( &self, tree: &mut Tree, layout: Layout<'_>, renderer: &Renderer, operation: &mut dyn Operation, )

Applies an Operation to the Widget.

fn on_event( &mut self, tree: &mut Tree, event: Event, layout: Layout<'_>, cursor: Cursor, renderer: &Renderer, clipboard: &mut dyn Clipboard, shell: &mut Shell<'_, Message>, viewport: &Rectangle, ) -> Status

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: Cursor, viewport: &Rectangle, )

Draws the Widget using the associated Renderer.

fn overlay<'b>( &'b mut self, tree: &'b mut Tree, layout: Layout<'_>, renderer: &Renderer, translation: Vector, ) -> Option<Element<'b, Message, Theme, Renderer>>

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

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

Returns a Size hint for laying out the Widget.

fn a11y_nodes( &self, _layout: Layout<'_>, _state: &Tree, _cursor: Cursor, ) -> A11yTree

get the a11y nodes for the widget and its children

fn id(&self) -> Option<Id>

Returns the id of the widget

fn set_id(&mut self, _id: Id)

Sets the id of the widget This may be called while diffing the widget tree

fn drag_destinations( &self, _state: &Tree, _layout: Layout<'_>, _renderer: &Renderer, _dnd_rectangles: &mut DndDestinationRectangles, )

Adds the drag destination rectangles of the widget. Runs after the layout phase for each widget in the tree.