Struct DragDropManager 

pub struct DragDropManager { /* private fields */ }

Drag and drop manager.

Implementations

impl DragDropManager

pub fn new() -> DragDropManager

Create a new drag/drop manager.

pub fn set_min_drag_distance(&mut self, distance: f32)

Set minimum drag distance.

pub fn set_preview_offset(&mut self, offset: Point)

Set drag preview offset.

pub fn register_target(&mut self, target: DropTarget)

Register a drop target.

pub fn unregister_target(&mut self, widget_id: WidgetId)

Unregister a drop target.

pub fn update_target_bounds(&mut self, widget_id: WidgetId, bounds: Rect)

Update a target’s bounds.

pub fn start_drag( &mut self, source_widget: WidgetId, position: Point, data: DragData, ) -> DragId

Start a drag operation.

pub fn move_drag(&mut self, position: Point)

Update drag position.

pub fn drop(&mut self) -> Option<DropResult>

End drag with drop attempt.

pub fn cancel(&mut self)

Cancel the current drag operation.

pub fn current(&self) -> Option<&DragState>

Get the current drag state.

pub fn is_dragging(&self) -> bool

Check if a drag is active.

pub fn preview_position(&self) -> Option<Point>

Get the preview position for rendering.

pub fn target_count(&self) -> usize

Get drop targets count.

pub fn target_at(&self, position: Point) -> Option<&DropTarget>

Find target at position.

pub fn clear(&mut self)

Clear all targets and cancel any active drag.

Trait Implementations

impl Debug for DragDropManager

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

Formats the value using the given formatter.

impl Default for DragDropManager

fn default() -> DragDropManager

Returns the “default value” for a type.