Gnome::Gtk4::GestureRotate

Description§

Gnome::Gtk4::GestureRotate is a Gnome::Gtk4::Gesture for 2-finger rotations.

Whenever the angle between both handled sequences changes, the angle-changed signal is emitted.

Uml Diagram§

UNKNOWN image§

Class initialization§

new§

:native-object§

Create an object using a native object from an object of the same type found elsewhere. See also Gnome::N::TopLevelSupportClass.

multi method new ( N-Object() :$native-object! )

new-gesturerotate§

Returns a newly created Gnome::Gtk4::Gesture that recognizes 2-touch rotation gestures.

method new-gesturerotate ( --> Gnome::Gtk4::GestureRotate )

Methods§

get-angle-delta§

Gets the angle delta in radians.

If $gesture is active, this function returns the angle difference in radians since the gesture was first recognized. If $gesture is not active, 0 is returned.

method get-angle-delta (--> Num )

Return value; the angle delta in radians.

Signals§

angle-changed§

Emitted when the angle between both tracked points changes.

method handler (
  gdouble $angle,
  gdouble $angle-delta,
  Int :$_handle_id,
  N-GObject :$_native-object,
  Gnome::Gtk4::GestureRotate :$_widget,
  *%user-options
)

• $angle; Current angle in radians.
• $angle-delta; Difference with the starting angle, in radians.
• $_handle_id; The registered event handler id.
• $_native-object; The native object provided by the Raku object which registered this event. This is a native Gnome::Gtk4::GestureRotate object.
• %user-options; A list of named arguments provided by .register-signal() in class Object.