Struct kas::event::Press

pub struct Press {
    pub source: PressSource,
    pub id: Option<Id>,
    pub coord: Coord,
}

Details of press events

Fields

source: PressSource

Source

id: Option<Id>

Identifier of current widget

coord: Coord

Current coordinate

Implementations

impl Press

pub fn grab(&self, id: Id) -> GrabBuilder

Grab pan/move/press-end events for widget id

There are three types of grab (GrabMode):

• Click: send the corresponding Event::PressEnd only
• Grab (the default): send Event::PressMove and Event::PressEnd
• Pan modes: send Event::Pan on motion. Note: this is most useful when grabbing multiple touch events.

Only a single mouse grab is allowed at any one time; requesting a second will cancel the first (sending Event::PressEnd with success: false).

EventState::is_depressed will return true for the grabbing widget. Call EventState::set_grab_depress on PressMove to update the grab’s depress target. (This is done automatically for GrabMode::Click, and ends automatically when the grab ends.)

This method uses the builder pattern. On completion, Used is returned. It is expected that the requested press/pan events are all “used” (Used).

Trait Implementations

impl Clone for Press

fn clone(&self) -> Press

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Press

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

Formats the value using the given formatter.

impl Deref for Press

type Target = PressSource

The resulting type after dereferencing.

fn deref(&self) -> &<Press as Deref>::Target

Dereferences the value.

impl PartialEq for Press

fn eq(&self, other: &Press) -> bool

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Press

impl StructuralEq for Press

impl StructuralPartialEq for Press