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

Handles text selection in labels (NOT in crate::TextEdit)s.

One state for all labels, because we only support text selection in one label at a time.

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impl LabelSelectionState

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pub fn load(ctx: &Context) -> Self

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pub fn store(self, ctx: &Context)

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pub fn has_selection(&self) -> bool

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pub fn clear_selection(&mut self)

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pub fn label_text_selection( ui: &Ui, response: &Response, galley_pos: Pos2, galley: &Galley )

Handle text selection state for a label or similar widget.

Make sure the widget senses clicks and drags.

This should be called after painting the text, because this will also paint the text cursor/selection on top.

Trait Implementations§

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impl Clone for LabelSelectionState

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fn clone(&self) -> LabelSelectionState

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for LabelSelectionState

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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 LabelSelectionState

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fn default() -> Self

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

Auto Trait Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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

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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, U> Into<U> for T
where U: From<T>,

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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<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> SerializableAny for T
where T: 'static + Any + Clone + for<'a> Send + Sync,