Struct cursive::views::Canvas
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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: 'static + View> Canvas<T>
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fn wrap(view: T) -> Self
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Creates a new Canvas around the given view.
By default, forwards all calls to the inner view.
impl<T> Canvas<T>
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fn new(state: T) -> Self
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Creates a new, empty Canvas.
Examples
let canvas = Canvas::new(()) .with_draw(|printer, _| { // Print the view });
fn state_mut(&mut self) -> &mut T
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Gets a mutable reference to the inner state.
fn set_draw<F>(&mut self, f: F) where
F: 'static + Fn(&T, &Printer),
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F: 'static + Fn(&T, &Printer),
Sets the closure for draw(&Printer)
.
fn with_draw<F>(self, f: F) -> Self where
F: 'static + Fn(&T, &Printer),
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F: 'static + Fn(&T, &Printer),
Sets the closure for draw(&Printer)
.
Chainable variant.
fn set_on_event<F>(&mut self, f: F) where
F: 'static + FnMut(&mut T, Event) -> EventResult,
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F: 'static + FnMut(&mut T, Event) -> EventResult,
Sets the closure for on_event(Event)
.
fn with_on_event<F>(self, f: F) -> Self where
F: 'static + FnMut(&mut T, Event) -> EventResult,
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F: 'static + FnMut(&mut T, Event) -> EventResult,
Sets the closure for on_event(Event)
.
Chainable variant.
fn set_required_size<F>(&mut self, f: F) where
F: 'static + FnMut(&mut T, Vec2) -> Vec2,
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F: 'static + FnMut(&mut T, Vec2) -> Vec2,
Sets the closure for required_size(Vec2)
.
fn with_required_size<F>(self, f: F) -> Self where
F: 'static + FnMut(&mut T, Vec2) -> Vec2,
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F: 'static + FnMut(&mut T, Vec2) -> Vec2,
Sets the closure for required_size(Vec2)
.
Chainable variant.
fn set_layout<F>(&mut self, f: F) where
F: 'static + FnMut(&mut T, Vec2),
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F: 'static + FnMut(&mut T, Vec2),
Sets the closure for layout(Vec2)
.
fn with_layout<F>(self, f: F) -> Self where
F: 'static + FnMut(&mut T, Vec2),
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F: 'static + FnMut(&mut T, Vec2),
Sets the closure for layout(Vec2)
.
Chainable variant.
fn set_take_focus<F>(&mut self, f: F) where
F: 'static + FnMut(&mut T, Direction) -> bool,
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F: 'static + FnMut(&mut T, Direction) -> bool,
Sets the closure for take_focus(Direction)
.
fn with_take_focus<F>(self, f: F) -> Self where
F: 'static + FnMut(&mut T, Direction) -> bool,
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F: 'static + FnMut(&mut T, Direction) -> 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,
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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,
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F: 'static + Fn(&T) -> bool,
Sets the closure for needs_relayout()
.
Chainable variant.
Trait Implementations
impl<T> View for Canvas<T>
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fn draw(&self, printer: &Printer)
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Draws the view with the given printer (includes bounds) and focus.
fn on_event(&mut self, event: Event) -> EventResult
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Called when a key was pressed. Read more
fn required_size(&mut self, constraint: Vec2) -> Vec2
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Returns the minimum size the view requires with the given restrictions. Read more
fn layout(&mut self, size: Vec2)
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Called once the size for this view has been decided, Read more
fn take_focus(&mut self, source: Direction) -> bool
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This view is offered focus. Will it take it? Read more
fn needs_relayout(&self) -> bool
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Returns true
if the view content changed since last layout phase. Read more
fn call_on_any<'a>(&mut self, _: &Selector, _: Box<FnMut(&mut Any) + 'a>)
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Runs a closure on the view identified by the given selector. Read more
fn focus_view(&mut self, &Selector) -> Result<(), ()>
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Moves the focus to the view identified by the given selector. Read more