Struct relm4::drawing::DrawHandler

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pub struct DrawHandler { /* private fields */ }
Expand description

Manager for drawing operations.

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impl DrawHandler

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pub fn new() -> Self

Create a new DrawHandler.

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pub fn new_with_drawing_area(drawing_area: DrawingArea) -> Self

Create a new DrawHandler with an existing gtk::DrawingArea.

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pub fn get_context(&mut self) -> DrawContext

Get the drawing context to draw on a gtk::DrawingArea. If the size of the gtk::DrawingArea changed, the contents of the surface will be replaced by a new, empty surface.

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pub fn height(&self) -> i32

Get the height of the DrawHandler.

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pub fn width(&self) -> i32

Get the width of the DrawHandler.

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pub fn drawing_area(&self) -> &DrawingArea

Get the gtk::DrawingArea of the DrawHandler.

Trait Implementations§

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impl Debug for DrawHandler

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for DrawHandler

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<C> AsyncPosition<()> for C

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fn position(_index: usize)

Returns the position. Read more
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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<C> Position<()> for C

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fn position(&self, _index: usize)

Returns the position. Read more
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impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more