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added direction property to ClutterBehaviourEllipse

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This commit is contained in:
Tomas Frydrych 2007-07-26 13:48:44 +00:00
parent 1d26ea3220
commit f1b27d9e1b
3 changed files with 140 additions and 64 deletions
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103
clutter/clutter-behaviour-ellipse.c
View File

@ -69,6 +69,7 @@ enum
PROP_ANGLE_BEGIN,
PROP_ANGLE_END,
PROP_ANGLE_TILT,
PROP_DIRECTION,
};
struct _ClutterBehaviourEllipsePrivate
@ -81,6 +82,8 @@ struct _ClutterBehaviourEllipsePrivate
ClutterAngle angle_begin;
ClutterAngle angle_end;
ClutterAngle angle_tilt;
ClutterRotateDirection direction;
};
static void
@ -147,9 +150,10 @@ clutter_behaviour_ellipse_alpha_notify (ClutterBehaviour *behave,
ClutterKnot knot;
ClutterAngle angle;
if (priv->angle_end >= priv->angle_begin)
if ((priv->angle_end >= priv->angle_begin) ==
(priv->direction == CLUTTER_ROTATE_CW))
{
angle = (priv->angle_end - priv->angle_begin)
angle = abs (priv->angle_end - priv->angle_begin)
* alpha
/ CLUTTER_ALPHA_MAX_ALPHA
+ priv->angle_begin;
@ -157,7 +161,7 @@ clutter_behaviour_ellipse_alpha_notify (ClutterBehaviour *behave,
else
{
angle = priv->angle_begin
- ((priv->angle_begin - priv->angle_end) * alpha)
- (abs(priv->angle_begin - priv->angle_end) * alpha)
/ CLUTTER_ALPHA_MAX_ALPHA;
}
@ -181,13 +185,16 @@ clutter_behaviour_ellipse_set_property (GObject *gobject,
switch (prop_id)
{
case PROP_ANGLE_BEGIN:
priv->angle_begin = CLUTTER_ANGLE_FROM_DEG (g_value_get_double (value));
priv->angle_begin =
CLUTTER_ANGLE_FROM_DEG (g_value_get_double (value)) - 256;
break;
case PROP_ANGLE_END:
priv->angle_end = CLUTTER_ANGLE_FROM_DEG (g_value_get_double (value));
priv->angle_end =
CLUTTER_ANGLE_FROM_DEG (g_value_get_double (value)) - 256;
break;
case PROP_ANGLE_TILT:
priv->angle_tilt = CLUTTER_ANGLE_FROM_DEG (g_value_get_double (value));
priv->angle_tilt =
CLUTTER_ANGLE_FROM_DEG (g_value_get_double (value)) - 256;
break;
case PROP_WIDTH:
priv->a = g_value_get_int (value) >> 1;
@ -202,6 +209,9 @@ clutter_behaviour_ellipse_set_property (GObject *gobject,
clutter_behaviour_ellipse_set_center (el, knot->x, knot->y);
}
break;
case PROP_DIRECTION:
priv->direction = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
@ -238,6 +248,9 @@ clutter_behaviour_ellipse_get_property (GObject *gobject,
case PROP_CENTER:
g_value_set_boxed (value, &priv->center);
break;
case PROP_DIRECTION:
g_value_set_enum (value, priv->direction);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
@ -361,6 +374,21 @@ clutter_behaviour_ellipse_class_init (ClutterBehaviourEllipseClass *klass)
CLUTTER_TYPE_KNOT,
CLUTTER_PARAM_READWRITE));
/**
* ClutterBehaviourEllipse:direction:
*
* The direction of the rotation.
*
* Since: 0.4
*/
g_object_class_install_property (object_class,
PROP_DIRECTION,
g_param_spec_enum ("direction",
"Direction",
"Direction of rotation",
CLUTTER_TYPE_ROTATE_DIRECTION,
CLUTTER_ROTATE_CW,
CLUTTER_PARAM_READWRITE));
g_type_class_add_private (klass, sizeof (ClutterBehaviourEllipsePrivate));
}
@ -370,6 +398,8 @@ clutter_behaviour_ellipse_init (ClutterBehaviourEllipse * self)
ClutterBehaviourEllipsePrivate *priv;
self->priv = priv = CLUTTER_BEHAVIOUR_ELLIPSE_GET_PRIVATE (self);
priv->direction = CLUTTER_ROTATE_CW;
}
/**
@ -381,8 +411,6 @@ clutter_behaviour_ellipse_init (ClutterBehaviourEllipse * self)
* @height: height of the ellipse
* @begin: angle in degrees at which movement begins
* @end: angle in degrees at which movement ends
* @tilt: angle in degrees with which the ellipse should be tilted around its
* center
*
* Creates a behaviour that drives actors along an elliptical path with
* given center, width and height; the movement begins at angle_begin (with 0
@ -400,8 +428,7 @@ clutter_behaviour_ellipse_new (ClutterAlpha *alpha,
gint width,
gint height,
gdouble begin,
gdouble end,
gdouble tilt)
gdouble end)
{
ClutterKnot center;
@ -417,7 +444,6 @@ clutter_behaviour_ellipse_new (ClutterAlpha *alpha,
"height", height,
"angle-begin", begin,
"angle-end", end,
"angle-tilt", tilt,
NULL);
}
@ -430,8 +456,6 @@ clutter_behaviour_ellipse_new (ClutterAlpha *alpha,
* @height: height of the ellipse
* @begin: #ClutterFixed angle in degrees at which movement begins
* @end: #ClutterFixed angle in degrees at which movement ends
* @tilt: #ClutterFixed angle in degrees with which the ellipse should be
* tilted around its center
*
* Creates a behaviour that drives actors along an elliptical path with
* given center, width and height; the movement begins at angle_begin (with 0
@ -449,8 +473,7 @@ clutter_behaviour_ellipse_newx (ClutterAlpha * alpha,
gint width,
gint height,
ClutterFixed begin,
ClutterFixed end,
ClutterFixed tilt)
ClutterFixed end)
{
ClutterKnot center;
@ -466,7 +489,6 @@ clutter_behaviour_ellipse_newx (ClutterAlpha * alpha,
"height", height,
"angle-begin", CLUTTER_ANGLE_FROM_DEGX (begin),
"angle-end", CLUTTER_ANGLE_FROM_DEGX (end),
"angle-tilt", CLUTTER_ANGLE_FROM_DEGX (tilt),
NULL);
}
@ -864,3 +886,52 @@ clutter_behaviour_ellipse_get_angle_tiltx (ClutterBehaviourEllipse *self)
return self->priv->angle_tilt;
}
/**
* clutter_behaviour_ellipse_get_direction:
* @ellipse: a #ClutterBehaviourEllipse
*
* Retrieves the #ClutterRotateDirection used by the ellipse behaviour.
*
* Return value: the rotation direction
*
* Since: 0.4
*/
ClutterRotateDirection
clutter_behaviour_ellipse_get_direction (ClutterBehaviourEllipse *self)
{
g_return_val_if_fail (CLUTTER_IS_BEHAVIOUR_ELLIPSE (self),
CLUTTER_ROTATE_CW);
return self->priv->direction;
}
/**
* clutter_behaviour_ellipse_set_direction:
* @ellipse: a #ClutterBehaviourEllipse
* @direction: the rotation direction
*
* Sets the rotation direction used by the ellipse behaviour.
*
* Since: 0.4
*/
void
clutter_behaviour_ellipse_set_direction (ClutterBehaviourEllipse *self,
ClutterRotateDirection direction)
{
ClutterBehaviourEllipsePrivate *priv;
g_return_if_fail (CLUTTER_IS_BEHAVIOUR_ELLIPSE (self));
priv = self->priv;
if (priv->direction != direction)
{
g_object_ref (self);
priv->direction = direction;
g_object_notify (G_OBJECT (self), "direction");
g_object_unref (self);
}
}

12
clutter/clutter-behaviour-ellipse.h
View File

@ -29,6 +29,7 @@
#include <clutter/clutter-alpha.h>
#include <clutter/clutter-actor.h>
#include <clutter/clutter-behaviour.h>
#include <clutter/clutter-types.h>
G_BEGIN_DECLS
@ -85,8 +86,7 @@ ClutterBehaviour *clutter_behaviour_ellipse_new (ClutterAlpha
gint width,
gint height,
gdouble begin,
gdouble end,
gdouble tilt);
gdouble end);
ClutterBehaviour * clutter_behaviour_ellipse_newx (ClutterAlpha *alpha,
gint x,
@ -94,8 +94,7 @@ ClutterBehaviour *clutter_behaviour_ellipse_newx (ClutterAlpha
gint width,
gint height,
ClutterFixed begin,
ClutterFixed end,
ClutterFixed tilt);
ClutterFixed end);
void clutter_behaviour_ellipse_set_center (ClutterBehaviourEllipse *self,
gint x,
@ -145,6 +144,11 @@ ClutterAngle clutter_behaviour_ellipse_get_angle_tiltx (ClutterBehaviourEl
gdouble clutter_behaviour_ellipse_get_angle_tilt (ClutterBehaviourEllipse *self);
ClutterRotateDirection clutter_behaviour_ellipse_get_direction (ClutterBehaviourEllipse *self);
void clutter_behaviour_ellipse_set_direction (ClutterBehaviourEllipse *self,
ClutterRotateDirection direction);
G_END_DECLS
#endif /* __CLUTTER_BEHAVIOUR_ELLIPSE_H__ */

5
tests/test-behave.c
View File

@ -153,7 +153,7 @@ main (int argc, char *argv[])
/* Set an alpha func to power behaviour - ramp is constant rise/fall */
alpha = clutter_alpha_new_full (timeline,
CLUTTER_ALPHA_SINE,
CLUTTER_ALPHA_RAMP_INC,
NULL, NULL);
/* Create a behaviour for that alpha */
@ -171,7 +171,8 @@ main (int argc, char *argv[])
case PATH_ELLIPSE:
p_behave =
clutter_behaviour_ellipse_new (alpha, 200, 200, 400, 300,
0.0, 360.0, 120.0);
0.0, 360.0);
g_object_set (p_behave, "angle-tilt", 45.0, NULL);
break;
case PATH_BSPLINE: