Struct gtk4::DragIcon[][src]

pub struct DragIcon(_);
Expand description

DragIcon is a Root implementation for drag icons.

A drag icon moves with the pointer during a Drag-and-Drop operation and is destroyed when the drag ends.

To set up a drag icon and associate it with an ongoing drag operation, use for_drag() to get the icon for a drag. You can then use it like any other widget and use set_child() to set whatever widget should be used for the drag icon.

Keep in mind that drag icons do not allow user input.

Implements

WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, NativeExt, RootExt, WidgetExtManual, AccessibleExtManual

Implementations

Creates a new builder-pattern struct instance to construct DragIcon objects.

This method returns an instance of DragIconBuilder which can be used to create DragIcon objects.

Gets the widget currently used as drag icon.

Returns

The drag icon or None if none.

Sets the widget to display as the drag icon.

child

a Widget or None

Creates a widget that can be used as a drag icon for the given value.

Supported types include strings, gdk::RGBA and TextBuffer. If GTK does not know how to create a widget for a given value, it will return None.

This method is used to set the default drag icon on drag’n’drop operations started by DragSource, so you don’t need to set a drag icon using this function there.

value

a GValue

Returns

A new Widget for displaying value as a drag icon.

Gets the DragIcon in use with drag.

If no drag icon exists yet, a new one will be created and shown.

drag

a gdk::Drag

Returns

the DragIcon

Creates a DragIcon that shows paintable, and associates it with the drag operation.

The hotspot position on the paintable is aligned with the hotspot of the cursor.

drag

a gdk::Drag

paintable

a gdk::Paintable to display

hot_x

X coordinate of the hotspot

hot_y

Y coordinate of the hotspot

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Formats the value using the given formatter. Read more

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Returns the type identifier of Self.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Upcasts an object to a superclass or interface T. Read more

Upcasts an object to a reference of its superclass or interface T. Read more

Tries to downcast to a subclass or interface implementor T. Read more

Tries to downcast to a reference of its subclass or interface implementor T. Read more

Tries to cast to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

Tries to cast to reference to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

Casts to T unconditionally. Read more

Casts to &T unconditionally. Read more

Performs the conversion.

Performs the conversion.

Returns true if the object is an instance of (can be cast to) T.

Safety Read more

Safety Read more

Safety Read more

Safety Read more

Safety Read more

Safety Read more

Same as connect but takes a SignalId instead of a signal name.

Same as connect_local but takes a SignalId instead of a signal name.

Same as connect_unsafe but takes a SignalId instead of a signal name.

Emit signal by signal id.

Same as emit but takes Value for the arguments.

Emit signal by its name.

Same as emit_by_name but takes Value for the arguments.

Emit signal with details by signal id.

Same as emit_with_details but takes Value for the arguments.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

Returns a SendValue clone of self.

Converts the given value to a String. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.