#[repr(transparent)]pub struct Drag { /* private fields */ }Expand description
The Drag object represents the source of an ongoing DND operation.
A Drag is created when a drag is started, and stays alive for duration of
the DND operation. After a drag has been started with begin(),
the caller gets informed about the status of the ongoing drag operation
with signals on the Drag object.
GTK provides a higher level abstraction based on top of these functions, and so they are not normally needed in GTK applications. See the “Drag and Drop” section of the GTK documentation for more information.
This is an Abstract Base Class, you cannot instantiate it.
Implements
Implementations§
source§impl Drag
impl Drag
pub const NONE: Option<&'static Drag> = None
sourcepub fn begin(
surface: &impl IsA<Surface>,
device: &impl IsA<Device>,
content: &impl IsA<ContentProvider>,
actions: DragAction,
dx: f64,
dy: f64
) -> Option<Drag>
pub fn begin(
surface: &impl IsA<Surface>,
device: &impl IsA<Device>,
content: &impl IsA<ContentProvider>,
actions: DragAction,
dx: f64,
dy: f64
) -> Option<Drag>
Starts a drag and creates a new drag context for it.
This function is called by the drag source. After this call, you
probably want to set up the drag icon using the surface returned
by DragExt::drag_surface().
This function returns a reference to the Drag object,
but GTK keeps its own reference as well, as long as the DND operation
is going on.
Note: if @actions include DragAction::MOVE, you need to listen for
the signal::Drag::dnd-finished signal and delete the data at
the source if DragExt::selected_action() returns
DragAction::MOVE.
surface
the source surface for this drag
device
the device that controls this drag
content
the offered content
actions
the actions supported by this drag
dx
the x offset to @device’s position where the drag nominally started
dy
the y offset to @device’s position where the drag nominally started
Returns
a newly created Drag
Trait Implementations§
source§impl Ord for Drag
impl Ord for Drag
source§impl<OT: ObjectType> PartialEq<OT> for Drag
impl<OT: ObjectType> PartialEq<OT> for Drag
source§impl<OT: ObjectType> PartialOrd<OT> for Drag
impl<OT: ObjectType> PartialOrd<OT> for Drag
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self and other) and is used by the <=
operator. Read moresource§impl StaticType for Drag
impl StaticType for Drag
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for Drag
Auto Trait Implementations§
impl RefUnwindSafe for Drag
impl !Send for Drag
impl !Sync for Drag
impl Unpin for Drag
impl UnwindSafe for Drag
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