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> Canvas<T>
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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),
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),
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,
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,
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,
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,
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),
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),
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,
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,
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,
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,
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)
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. Read more
fn required_size(&mut self, constraint: Vec2) -> Vec2
Returns the minimum size the view requires with the given restrictions. Read more
fn layout(&mut self, size: Vec2)
Called once the size for this view has been decided, Read more
fn take_focus(&mut self, source: Direction) -> bool
This view is offered focus. Will it take it? Read more
fn needs_relayout(&self) -> bool
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>)
Runs a closure on the view identified by the given selector. Read more
fn focus_view(&mut self, &Selector) -> Result<(), ()>
Moves the focus to the view identified by the given selector. Read more