## ClutterBehaviourRotate

ClutterBehaviourRotate — A behaviour controlling rotation

## Synopsis

    enum                ClutterRotateAxis;
    enum                ClutterRotateDirection;
    struct              ClutterBehaviourRotate;
    struct              ClutterBehaviourRotateClass;
    ClutterBehaviour *      clutter_behaviour_rotate_new    (ClutterAlpha *alpha,
                                                             ClutterRotateAxis axis,
                                                             ClutterRotateDirection direction,
                                                             gdouble angle_start,
                                                             gdouble angle_end);
    void                clutter_behaviour_rotate_set_axis   (ClutterBehaviourRotate *rotate,
                                                             ClutterRotateAxis axis);
    ClutterRotateAxis   clutter_behaviour_rotate_get_axis   (ClutterBehaviourRotate *rotate);
    void                clutter_behaviour_rotate_set_direction
                                                            (ClutterBehaviourRotate *rotate,
                                                             ClutterRotateDirection direction);
    ClutterRotateDirection  clutter_behaviour_rotate_get_direction
                                                            (ClutterBehaviourRotate *rotate);
    void                clutter_behaviour_rotate_set_bounds (ClutterBehaviourRotate *rotate,
                                                             gdouble angle_start,
                                                             gdouble angle_end);
    void                clutter_behaviour_rotate_get_bounds (ClutterBehaviourRotate *rotate,
                                                             gdouble *angle_start,
                                                             gdouble *angle_end);
    void                clutter_behaviour_rotate_set_center (ClutterBehaviourRotate *rotate,
                                                             gint x,
                                                             gint y,
                                                             gint z);
    void                clutter_behaviour_rotate_get_center (ClutterBehaviourRotate *rotate,
                                                             gint *x,
                                                             gint *y,
                                                             gint *z);

## Object Hierarchy

      GObject
       +----ClutterBehaviour
             +----ClutterBehaviourRotate

## Implemented Interfaces

ClutterBehaviourRotate implements ClutterScriptable.

## Properties

      "angle-end"                gdouble               : Read / Write
      "angle-start"              gdouble               : Read / Write
      "axis"                     ClutterRotateAxis     : Read / Write
      "center-x"                 gint                  : Read / Write
      "center-y"                 gint                  : Read / Write
      "center-z"                 gint                  : Read / Write
      "direction"                ClutterRotateDirection  : Read / Write

## Description

A ClutterBehaviourRotate rotate actors between a starting and ending angle on a given axis.

The ClutterBehaviourRotate is available since version 0.4.

## Details

### enum ClutterRotateAxis

    typedef enum { /*< prefix=CLUTTER >*/
      CLUTTER_X_AXIS,
      CLUTTER_Y_AXIS,
      CLUTTER_Z_AXIS
    } ClutterRotateAxis;

Axis of a rotation.

`CLUTTER_X_AXIS` | Rotate around the X axis
`CLUTTER_Y_AXIS` | Rotate around the Y axis
`CLUTTER_Z_AXIS` | Rotate around the Z axis

Since 0.4

### enum ClutterRotateDirection

    typedef enum { /*< prefix=CLUTTER_ROTATE >*/
      CLUTTER_ROTATE_CW,
      CLUTTER_ROTATE_CCW
    } ClutterRotateDirection;

Direction of a rotation.

`CLUTTER_ROTATE_CW` | Clockwise rotation
`CLUTTER_ROTATE_CCW` | Counter-clockwise rotation

Since 0.4

### struct ClutterBehaviourRotate

    struct ClutterBehaviourRotate;

The ClutterBehaviourRotate struct contains only private data and should be accessed using the provided API

Since 0.4

### struct ClutterBehaviourRotateClass

    struct ClutterBehaviourRotateClass {
    };

The ClutterBehaviourRotateClass struct contains only private data

Since 0.4

### clutter_behaviour_rotate_new ()

    ClutterBehaviour *      clutter_behaviour_rotate_new    (ClutterAlpha *alpha,
                                                             ClutterRotateAxis axis,
                                                             ClutterRotateDirection direction,
                                                             gdouble angle_start,
                                                             gdouble angle_end);

Creates a new ClutterBehaviourRotate. This behaviour will rotate actors bound to it on `axis`, following `direction`, between `angle_start` and `angle_end`. Angles >= 360 degrees will be clamped to the canonical interval <0, 360), if angle_start == angle_end, the behaviour will carry out a single rotation of 360 degrees.

If `alpha` is not `NULL`, the ClutterBehaviour will take ownership of the ClutterAlpha instance. In the case when `alpha` is `NULL`, it can be set later with `clutter_behaviour_set_alpha()`.

`alpha` : | a ClutterAlpha instance, or `NULL`. [allow-none]
`axis` : | the rotation axis
`direction` : | the rotation direction
`angle_start` : | the starting angle in degrees, between 0 and 360.
`angle_end` : | the final angle in degrees, between 0 and 360.
Returns : | the newly created ClutterBehaviourRotate.

Since 0.4

### clutter_behaviour_rotate_set_axis ()

    void                clutter_behaviour_rotate_set_axis   (ClutterBehaviourRotate *rotate,
                                                             ClutterRotateAxis axis);

Sets the axis used by the rotate behaviour.

`rotate` : | a ClutterBehaviourRotate
`axis` : | a ClutterRotateAxis

Since 0.4

### clutter_behaviour_rotate_get_axis ()

    ClutterRotateAxis   clutter_behaviour_rotate_get_axis   (ClutterBehaviourRotate *rotate);

Retrieves the ClutterRotateAxis used by the rotate behaviour.

`rotate` : | a ClutterBehaviourRotate
Returns : | the rotation axis

Since 0.4

### clutter_behaviour_rotate_set_direction ()

    void                clutter_behaviour_rotate_set_direction
                                                            (ClutterBehaviourRotate *rotate,
                                                             ClutterRotateDirection direction);

Sets the rotation direction used by the rotate behaviour.

`rotate` : | a ClutterBehaviourRotate
`direction` : | the rotation direction

Since 0.4

### clutter_behaviour_rotate_get_direction ()

    ClutterRotateDirection  clutter_behaviour_rotate_get_direction
                                                            (ClutterBehaviourRotate *rotate);

Retrieves the ClutterRotateDirection used by the rotate behaviour.

`rotate` : | a ClutterBehaviourRotate
Returns : | the rotation direction

Since 0.4

### clutter_behaviour_rotate_set_bounds ()

    void                clutter_behaviour_rotate_set_bounds (ClutterBehaviourRotate *rotate,
                                                             gdouble angle_start,
                                                             gdouble angle_end);

Sets the initial and final angles of a rotation behaviour; angles >= 360 degrees get clamped to the canonical interval <0, 360).

`rotate` : | a ClutterBehaviourRotate
`angle_start` : | initial angle in degrees, between 0 and 360.
`angle_end` : | final angle in degrees, between 0 and 360.

Since 0.4

### clutter_behaviour_rotate_get_bounds ()

    void                clutter_behaviour_rotate_get_bounds (ClutterBehaviourRotate *rotate,
                                                             gdouble *angle_start,
                                                             gdouble *angle_end);

Retrieves the rotation boundaries of the rotate behaviour.

`rotate` : | a ClutterBehaviourRotate
`angle_start` : | return value for the initial angle
`angle_end` : | return value for the final angle

Since 0.4

### clutter_behaviour_rotate_set_center ()

    void                clutter_behaviour_rotate_set_center (ClutterBehaviourRotate *rotate,
                                                             gint x,
                                                             gint y,
                                                             gint z);

Sets the center of rotation. The coordinates are relative to the plane normal to the rotation axis set with `clutter_behaviour_rotate_set_axis()`.

`rotate` : | a ClutterBehaviourRotate
`x` : | X axis center of rotation
`y` : | Y axis center of rotation
`z` : | Z axis center of rotation

Since 0.4

### clutter_behaviour_rotate_get_center ()

    void                clutter_behaviour_rotate_get_center (ClutterBehaviourRotate *rotate,
                                                             gint *x,
                                                             gint *y,
                                                             gint *z);

Retrieves the center of rotation set using `clutter_behaviour_rotate_set_center()`.

`rotate` : | a ClutterBehaviourRotate
`x` : | return location for the X center of rotation. [out]
`y` : | return location for the Y center of rotation. [out]
`z` : | return location for the Z center of rotation. [out]

Since 0.4

## Property Details

### The `"angle-end"` property

      "angle-end"                gdouble               : Read / Write

The final angle to where the rotation should end.

Allowed values: [0,360]

Default value: 0

Since 0.4

### The `"angle-start"` property

      "angle-start"              gdouble               : Read / Write

The initial angle from whence the rotation should start.

Allowed values: [0,360]

Default value: 0

Since 0.4

### The `"axis"` property

      "axis"                     ClutterRotateAxis     : Read / Write

The axis of rotation.

Default value: CLUTTER_Z_AXIS

Since 0.4

### The `"center-x"` property

      "center-x"                 gint                  : Read / Write

The x center of rotation.

Allowed values: >= -2147483647

Default value: 0

Since 0.4

### The `"center-y"` property

      "center-y"                 gint                  : Read / Write

The y center of rotation.

Allowed values: >= -2147483647

Default value: 0

Since 0.4

### The `"center-z"` property

      "center-z"                 gint                  : Read / Write

The z center of rotation.

Allowed values: >= -2147483647

Default value: 0

Since 0.4

### The `"direction"` property

      "direction"                ClutterRotateDirection  : Read / Write

The direction of the rotation.

Default value: CLUTTER_ROTATE_CW

Since 0.4