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DragDropState

proof_engine::editor::hierarchy

Struct DragDropState 

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pub struct DragDropState {
    pub dragging: Option<NodeId>,
    pub hover_target: Option<NodeId>,
    pub hover_position: DropPosition,
    pub drag_start_y: f32,
    pub current_y: f32,
}
Expand description

Tracks state for simulated drag-and-drop reordering.

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§dragging: Option<NodeId>§hover_target: Option<NodeId>§hover_position: DropPosition§drag_start_y: f32§current_y: f32

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impl DragDropState

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pub fn start_drag(&mut self, id: NodeId, y: f32)

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pub fn update(&mut self, y: f32, target: Option<NodeId>, pos: DropPosition)

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pub fn finish(&mut self) -> Option<(NodeId, Option<NodeId>, DropPosition)>

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pub fn cancel(&mut self)

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pub fn is_dragging(&self) -> bool

Trait Implementations§

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impl Clone for DragDropState

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fn clone(&self) -> DragDropState

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

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

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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 DragDropState

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fn default() -> DragDropState

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

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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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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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

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fn clone_into(&self, target: &mut T)

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impl<T, U> ToSample<U> for T
where U: FromSample<T>,

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fn to_sample_(self) -> U

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impl<T, U> TryFrom<U> for 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<S, T> Duplex<S> for T
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