ClutterRotateAction: Clutter Reference Manual

ClutterRotateAction

ClutterRotateAction — Action to rotate an actor

Functions

ClutterAction *

clutter_rotate_action_new ()

Signals

gboolean

rotate

Run Last

Types and Values

struct	ClutterRotateAction
struct	ClutterRotateActionClass

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── ClutterActorMeta
            ╰── ClutterAction
                ╰── ClutterGestureAction
                    ╰── ClutterRotateAction

Description

ClutterRotateAction is a sub-class of ClutterGestureAction that implements the logic for recognizing rotate gestures using two touch points.

Functions

clutter_rotate_action_new ()

ClutterAction *
clutter_rotate_action_new (void);

Creates a new ClutterRotateAction instance

Returns

the newly created ClutterRotateAction

Since: 1.12

Types and Values

struct ClutterRotateAction

struct ClutterRotateAction;

The ClutterRotateAction structure contains only private data and should be accessed using the provided API

Since: 1.12

struct ClutterRotateActionClass

struct ClutterRotateActionClass {
  gboolean (* rotate)  (ClutterRotateAction *action,
                        ClutterActor        *actor,
                        gdouble              angle);
};

The ClutterRotateActionClass structure contains only private data.

Members

rotate ()

class handler for the “rotate” signal

Since: 1.12

Signal Details

The `“rotate”` signal

gboolean
user_function (ClutterRotateAction *action,
               ClutterActor        *actor,
               double               angle,
               gpointer             user_data)

The ::rotate signal is emitted when a rotate gesture is recognized on the attached actor and when the gesture is cancelled (in this case with an angle value of 0).

Parameters

action	the ClutterRotateAction that emitted the signal
actor	the ClutterActor attached to the `action`
angle	the difference of angle of rotation between the initial rotation and the current rotation
user_data	user data set when the signal handler was connected.

Returns

TRUE if the rotation should continue, and FALSE if the rotation should be cancelled.

Flags: Run Last

Since: 1.12