DearImGui.Raw.DragDrop

Source

beginSource :: MonadIO m => ImGuiDragDropFlags -> m Bool

Call after submitting an item which may be dragged.

When this return True, you can call setPayload + endDragDropSource.

setPayload :: MonadIO m => CString -> Ptr a -> CSize -> ImGuiCond -> m Bool

Type is a user defined string of maximum 32 characters.

Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui. Returns True when payload has been accepted.

endSource :: MonadIO m => m ()

Only call if beginSource returns True!

Target

beginTarget :: MonadIO m => m Bool

Call after submitting an item that may receive a payload.

If this returns True, you can call acceptPayload + endTarget.

acceptPayload :: MonadIO m => CString -> ImGuiDragDropFlags -> m (Maybe Payload)

Accept contents of a given type.

If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.

endTarget :: MonadIO m => m ()

Only call if beginTarget returns true!

Payload object

newtype Payload

DragDrop payload data handle

Wraps ImGuiPayload*.

Constructors

Payload (Ptr ImGuiPayload)

Instances

Show Payload

Defined in DearImGui.Raw.DragDrop

Methods

showsPrec :: Int -> Payload -> ShowS

show :: Payload -> String

showList :: [Payload] -> ShowS

Eq Payload

Defined in DearImGui.Raw.DragDrop

Methods

(==) :: Payload -> Payload -> Bool

(/=) :: Payload -> Payload -> Bool

getData :: MonadIO m => Payload -> m (Ptr ())

getDataSize :: MonadIO m => Payload -> m CInt

Direct access

getPayload :: MonadIO m => m (Maybe Payload)

Peek directly into the current payload from anywhere.

Returns NULL when drag and drop is finished or inactive. Use isDataType to test for the payload type.

clear :: MonadIO m => Payload -> m ()

Clear the DearImGui copy of payload data.

Gets called on endTarget right after delivery.

isDataType :: MonadIO m => Payload -> CString -> m Bool

isPreview :: MonadIO m => Payload -> m Bool

isDelivery :: MonadIO m => Payload -> m Bool