+/*
+ * Clutter.
+ *
+ * An OpenGL based 'interactive canvas' library.
+ *
+ * Copyright (C) 2010 Intel Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author:
+ * Emmanuele Bassi <ebassi@linux.intel.com>
+ */
+
+/**
+ * SECTION:ClutterBindConstraint
+ * @Title: ClutterBindConstraint
+ * @Short_Description: A constraint binding the position of an actor
+ *
+ * #ClutterBindConstraint is a #ClutterConstraint that binds the position of
+ * the #ClutterActor to which it is applied to the the position of another
+ * #ClutterActor.
+ *
+ * #ClutterBindConstraint is available since Clutter 1.4
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
ClutterConstraint parent_instance;
ClutterActor *source;
- ClutterBindAxis bind_axis;
+ ClutterBindCoordinate coordinate;
gfloat offset;
};
PROP_0,
PROP_SOURCE,
- PROP_BIND_AXIS,
+ PROP_COORDINATE,
PROP_OFFSET
};
source_position.y = clutter_actor_get_y (bind->source);
source_position.z = clutter_actor_get_depth (bind->source);
- switch (bind->bind_axis)
+ switch (bind->coordinate)
{
- case CLUTTER_BIND_X_AXIS:
+ case CLUTTER_BIND_X:
clutter_actor_set_x (actor, source_position.x + bind->offset);
break;
- case CLUTTER_BIND_Y_AXIS:
+ case CLUTTER_BIND_Y:
clutter_actor_set_y (actor, source_position.y + bind->offset);
break;
- case CLUTTER_BIND_Z_AXIS:
+ case CLUTTER_BIND_Z:
clutter_actor_set_depth (actor, source_position.z + bind->offset);
break;
}
}
static void
-source_destroyed (ClutterActor *actor,
+source_destroyed (ClutterActor *actor,
ClutterBindConstraint *bind)
{
bind->source = NULL;
}
static void
-_clutter_bind_constraint_set_bind_axis (ClutterBindConstraint *bind,
- ClutterBindAxis axis)
+_clutter_bind_constraint_set_coordinate (ClutterBindConstraint *bind,
+ ClutterBindCoordinate coord)
{
- if (bind->bind_axis == axis)
+ if (bind->coordinate == coord)
return;
- bind->bind_axis = axis;
+ bind->coordinate = coord;
update_actor_position (bind);
- g_object_notify (G_OBJECT (bind), "bind-axis");
+ g_object_notify (G_OBJECT (bind), "coordinate");
}
static void
_clutter_bind_constraint_set_source (bind, g_value_get_object (value));
break;
- case PROP_BIND_AXIS:
- _clutter_bind_constraint_set_bind_axis (bind, g_value_get_enum (value));
+ case PROP_COORDINATE:
+ _clutter_bind_constraint_set_coordinate (bind, g_value_get_enum (value));
break;
case PROP_OFFSET:
g_value_set_object (value, bind->source);
break;
- case PROP_BIND_AXIS:
- g_value_set_enum (value, bind->bind_axis);
+ case PROP_COORDINATE:
+ g_value_set_enum (value, bind->coordinate);
break;
case PROP_OFFSET:
gobject_class->set_property = clutter_bind_constraint_set_property;
gobject_class->get_property = clutter_bind_constraint_get_property;
+ /**
+ * ClutterBindConstraint:source:
+ *
+ * The #ClutterActor used as the source for the binding
+ *
+ * Since: 1.4
+ */
pspec = g_param_spec_object ("source",
"Source",
"The source of the binding",
G_PARAM_CONSTRUCT);
g_object_class_install_property (gobject_class, PROP_SOURCE, pspec);
- pspec = g_param_spec_enum ("bind-axis",
- "Bind Axis",
- "The axis to bind the position from",
- CLUTTER_TYPE_BIND_AXIS,
- CLUTTER_BIND_X_AXIS,
+ /**
+ * ClutterBindConstraint:coordinate:
+ *
+ * The coordinate to be bound
+ *
+ * Since: 1.4
+ */
+ pspec = g_param_spec_enum ("coordinate",
+ "Coordinate",
+ "The coordinate to bind",
+ CLUTTER_TYPE_BIND_COORDINATE,
+ CLUTTER_BIND_X,
CLUTTER_PARAM_READWRITE |
G_PARAM_CONSTRUCT);
- g_object_class_install_property (gobject_class, PROP_BIND_AXIS, pspec);
-
+ g_object_class_install_property (gobject_class, PROP_COORDINATE, pspec);
+
+ /**
+ * ClutterBindConstraint:offset:
+ *
+ * The offset, in pixels, to be applied to the binding
+ *
+ * Since: 1.4
+ */
pspec = g_param_spec_float ("offset",
"Offset",
"The offset in pixels to apply to the binding",
clutter_bind_constraint_init (ClutterBindConstraint *self)
{
self->source = NULL;
- self->bind_axis = CLUTTER_BIND_X_AXIS;
+ self->coordinate = CLUTTER_BIND_X;
self->offset = 0.0f;
}
+/**
+ * clutter_bind_constraint_new:
+ * @source: the #ClutterActor to use as the source of the binding
+ * @coordinate: the coordinate to bind
+ * @offset: the offset to apply to the binding, in pixels
+ *
+ * Creates a new constraint, binding a #ClutterActor's position to
+ * the given @coordinate of the position of @source
+ *
+ * Return value: the newly created #ClutterBindConstraint
+ *
+ * Since: 1.4
+ */
ClutterConstraint *
-clutter_bind_constraint_new (ClutterActor *source,
- ClutterBindAxis axis,
- gfloat offset)
+clutter_bind_constraint_new (ClutterActor *source,
+ ClutterBindCoordinate coordinate,
+ gfloat offset)
{
g_return_val_if_fail (CLUTTER_IS_ACTOR (source), NULL);
return g_object_new (CLUTTER_TYPE_BIND_CONSTRAINT,
"source", source,
- "bind-axis", axis,
+ "coordinate", coordinate,
"offset", offset,
NULL);
}
+/*
+ * Clutter.
+ *
+ * An OpenGL based 'interactive canvas' library.
+ *
+ * Copyright (C) 2010 Intel Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author:
+ * Emmanuele Bassi <ebassi@linux.intel.com>
+ */
+
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
typedef struct _ClutterBindConstraint ClutterBindConstraint;
typedef enum { /*< prefix=CLUTTER_BIND >*/
- CLUTTER_BIND_X_AXIS,
- CLUTTER_BIND_Y_AXIS,
- CLUTTER_BIND_Z_AXIS
-} ClutterBindAxis;
+ CLUTTER_BIND_X,
+ CLUTTER_BIND_Y,
+ CLUTTER_BIND_Z
+} ClutterBindCoordinate;
GType clutter_bind_constraint_get_type (void) G_GNUC_CONST;
-ClutterConstraint *clutter_bind_constraint_new (ClutterActor *source,
- ClutterBindAxis axis,
- gfloat offset);
+ClutterConstraint *clutter_bind_constraint_new (ClutterActor *source,
+ ClutterBindCoordinate coordinate,
+ gfloat offset);
G_END_DECLS
* -1.0f;
gfloat right_offset = clutter_actor_get_width (right_rect) + H_PADDING;
+ clutter_actor_animate (center_rect, CLUTTER_LINEAR, 500,
+ "opacity", 128,
+ NULL);
clutter_actor_animate (left_rect, CLUTTER_EASE_OUT_CUBIC, 500,
"opacity", 255,
"@constraints.x-bind.offset", left_offset,
}
else
{
+ clutter_actor_animate (center_rect, CLUTTER_LINEAR, 500,
+ "opacity", 255,
+ NULL);
clutter_actor_animate (left_rect, CLUTTER_EASE_OUT_CUBIC, 500,
"opacity", 0,
"@constraints.x-bind.offset", 0.0f,
G_CALLBACK (on_button_release),
NULL);
clutter_rectangle_set_color (CLUTTER_RECTANGLE (rect), &rect_color);
- clutter_actor_set_size (rect, 256, 256);
+ clutter_actor_set_size (rect, 128, 128);
clutter_actor_set_reactive (rect, TRUE);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
clutter_color_from_string (&rect_color, "#cc0000ff");
rect = clutter_rectangle_new ();
clutter_rectangle_set_color (CLUTTER_RECTANGLE (rect), &rect_color);
- clutter_actor_set_size (rect, 256, 256);
+ clutter_actor_set_size (rect, 128, 128);
clutter_actor_set_opacity (rect, 0);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
- constraint = clutter_bind_constraint_new (center_rect, CLUTTER_BIND_X_AXIS, 0.0f);
+ constraint = clutter_bind_constraint_new (center_rect, CLUTTER_BIND_X, 0.0f);
clutter_actor_meta_set_name (CLUTTER_ACTOR_META (constraint), "x-bind");
clutter_actor_add_constraint (rect, constraint);
clutter_color_from_string (&rect_color, "#3465a4ff");
rect = clutter_rectangle_new ();
clutter_rectangle_set_color (CLUTTER_RECTANGLE (rect), &rect_color);
- clutter_actor_set_size (rect, 256, 256);
+ clutter_actor_set_size (rect, 128, 128);
clutter_actor_set_opacity (rect, 0);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
- constraint = clutter_bind_constraint_new (center_rect, CLUTTER_BIND_X_AXIS, 0.0f);
+ constraint = clutter_bind_constraint_new (center_rect, CLUTTER_BIND_X, 0.0f);
clutter_actor_meta_set_name (CLUTTER_ACTOR_META (constraint), "x-bind");
clutter_actor_add_constraint (rect, constraint);
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