Struct DragDropSource 

pub struct DragDropSource<'ui, T> { /* private fields */ }

Builder for creating drag drop sources

This struct is created by Ui::drag_drop_source_config and provides a fluent interface for configuring drag sources.

Implementations

impl<'ui, T: AsRef<str>> DragDropSource<'ui, T>

pub fn flags(self, flags: DragDropFlags) -> Self

Set flags for this drag source

Arguments

• flags - Combination of source-related DragDropFlags

pub fn condition(self, cond: Condition) -> Self

Set condition for when to update the payload

Arguments

• cond - When to update the payload data

pub fn begin(self) -> Option<DragDropSourceTooltip<'ui>>

Begin drag source with empty payload

This is the safest option for simple drag and drop operations. Use shared state or other mechanisms to transfer actual data.

Returns a tooltip token if dragging started, None otherwise.

pub fn begin_payload<P: Copy + 'static>( self, payload: P, ) -> Option<DragDropSourceTooltip<'ui>>

Begin drag source with typed payload

The payload data will be copied and managed by ImGui. The data must be Copy + 'static for safety.

Arguments

• payload - Data to transfer (must be Copy + ’static)

Returns a tooltip token if dragging started, None otherwise.

pub unsafe fn begin_payload_unchecked( &self, ptr: *const c_void, size: usize, ) -> Option<DragDropSourceTooltip<'ui>>

Begin drag source with raw payload data (unsafe)

Safety

The caller must ensure:

• ptr points to valid data of size bytes
• The data remains valid for the duration of the drag operation
• The data layout matches what targets expect

Arguments

• ptr - Pointer to payload data
• size - Size of payload data in bytes

Trait Implementations

impl<'ui, T: Debug> Debug for DragDropSource<'ui, T>

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

Formats the value using the given formatter.