Struct cursive::views::Canvas

pub struct Canvas<T> { /* fields omitted */ }

A blank view that forwards calls to closures.

You can use this view to easily draw your own interface.

Methods

impl<T> Canvas<T>

fn new(state: T) -> Self

Creates a new, empty Canvas.

Examples

let canvas = Canvas::new(())
                    .with_draw(|printer, _| {
                        // Print the view
                    });

fn state_mut(&mut self) -> &mut T

Gets a mutable reference to the inner state.

fn set_draw<F>(&mut self, f: F) where
    F: 'static + Fn(&Printer, &T), 

Sets the closure for draw(&Printer).

fn with_draw<F>(self, f: F) -> Self where
    F: 'static + Fn(&Printer, &T), 

Sets the closure for draw(&Printer).

Chainable variant.

fn set_on_event<F>(&mut self, f: F) where
    F: 'static + FnMut(Event, &mut T) -> EventResult, 

Sets the closure for on_event(Event).

fn with_on_event<F>(self, f: F) -> Self where
    F: 'static + FnMut(Event, &mut T) -> EventResult, 

Sets the closure for on_event(Event).

Chainable variant.

fn set_required_size<F>(&mut self, f: F) where
    F: 'static + FnMut(Vec2, &mut T) -> Vec2, 

Sets the closure for required_size(Vec2).

fn with_required_size<F>(self, f: F) -> Self where
    F: 'static + FnMut(Vec2, &mut T) -> Vec2, 

Sets the closure for required_size(Vec2).

Chainable variant.

fn set_layout<F>(&mut self, f: F) where
    F: 'static + FnMut(Vec2, &mut T), 

Sets the closure for layout(Vec2).

fn with_layout<F>(self, f: F) -> Self where
    F: 'static + FnMut(Vec2, &mut T), 

Sets the closure for layout(Vec2).

Chainable variant.

fn set_take_focus<F>(&mut self, f: F) where
    F: 'static + FnMut(Direction, &mut T) -> bool, 

Sets the closure for take_focus(Direction).

fn with_take_focus<F>(self, f: F) -> Self where
    F: 'static + FnMut(Direction, &mut T) -> bool, 

Sets the closure for take_focus(Direction).

Chainable variant.

fn set_needs_relayout<F>(&mut self, f: F) where
    F: 'static + Fn(&T) -> bool, 

Sets the closure for needs_relayout().

fn with_needs_relayout<F>(self, f: F) -> Self where
    F: 'static + Fn(&T) -> bool, 

Sets the closure for needs_relayout().

Chainable variant.

Trait Implementations

impl<T> View for Canvas<T>

fn draw(&self, printer: &Printer)

Draws the view with the given printer (includes bounds) and focus.

fn on_event(&mut self, event: Event) -> EventResult

Called when a key was pressed.

fn required_size(&mut self, constraint: Vec2) -> Vec2

Returns the minimum size the view requires with the given restrictions.

fn layout(&mut self, size: Vec2)

Called once the size for this view has been decided,

fn take_focus(&mut self, source: Direction) -> bool

This view is offered focus. Will it take it?

fn needs_relayout(&self) -> bool

Returns true if the view content changed since last layout phase.

fn call_on_any<'a>(&mut self, _: &Selector, _: Box<FnMut(&mut Any) + 'a>)

Runs a closure on the view identified by the given selector.

fn focus_view(&mut self, &Selector) -> Result<(), ()>

Moves the focus to the view identified by the given selector.