Struct DragDropTarget 

pub struct DragDropTarget<'ui>(/* private fields */);

Drag drop target for accepting payloads

This struct is created by Ui::drag_drop_target and provides methods for accepting different types of payloads.

Implementations

impl<'ui> DragDropTarget<'ui>

pub fn accept_payload_empty( &self, name: impl AsRef<str>, flags: DragDropFlags, ) -> Option<DragDropPayloadEmpty>

Accept an empty payload

This is the safest option for drag and drop operations. Use this when you only need to know that a drop occurred, not transfer actual data.

Arguments

• name - Payload type name (must match source name)
• flags - Accept flags

Returns payload info if accepted, None otherwise.

pub fn accept_payload<T: 'static + Copy, Name: AsRef<str>>( &self, name: Name, flags: DragDropFlags, ) -> Option<Result<DragDropPayloadPod<T>, PayloadIsWrongType>>

Accept a typed payload

Attempts to accept a payload with the specified type. Returns Ok(payload) if the type matches, Err(PayloadIsWrongType) if not.

Arguments

• name - Payload type name (must match source name)
• flags - Accept flags

Returns Some(Result<payload, error>) if payload exists, None otherwise.

pub unsafe fn accept_payload_unchecked( &self, name: impl AsRef<str>, flags: DragDropFlags, ) -> Option<DragDropPayload>

Accept raw payload data (unsafe)

Safety

The returned pointer and size are managed by ImGui and may become invalid at any time. The caller must not access the data after the drag operation completes.

Arguments

• name - Payload type name
• flags - Accept flags

pub fn pop(self)

End the drag drop target

This is called automatically when the token is dropped.

Trait Implementations

impl<'ui> Debug for DragDropTarget<'ui>

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

Formats the value using the given formatter.

impl Drop for DragDropTarget<'_>

fn drop(&mut self)

Executes the destructor for this type.