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box: Proxy the Actor's background color properties

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ClutterBox's color and color-set properties can be implemented as
proxies for the ClutterActor's newly added background-color and
background-color-set properties, respectively.

This also allows us to get rid of the paint() implementation inside
ClutterBox altogether.
This commit is contained in:
Emmanuele Bassi 2011-12-05 10:19:45 +00:00 committed by Emmanuele Bassi
parent 98a8feae64
commit ba093ed5e7
1 changed files with 33 additions and 79 deletions
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112
clutter/clutter-box.c
View file

@ -90,81 +90,42 @@ struct _ClutterBoxPrivate
ClutterLayoutManager *manager;
guint changed_id;
ClutterColor color;
guint color_set : 1;
};
enum
{
PROP_0,
PROP_LAYOUT_MANAGER,
PROP_COLOR,
PROP_COLOR_SET,
PROP_LAST
};
static GParamSpec *obj_props[PROP_LAST];
static GParamSpec *obj_props[PROP_LAST] = { NULL, };
static const ClutterColor default_box_color = { 255, 255, 255, 255 };
G_DEFINE_TYPE (ClutterBox, clutter_box, CLUTTER_TYPE_ACTOR);
static void
clutter_box_real_paint (ClutterActor *actor)
{
ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
GList *children;
if (priv->color_set)
{
ClutterActorBox box = { 0, };
gfloat width, height;
guint8 tmp_alpha;
clutter_actor_get_allocation_box (actor, &box);
clutter_actor_box_get_size (&box, &width, &height);
tmp_alpha = clutter_actor_get_paint_opacity (actor)
* priv->color.alpha
/ 255;
cogl_set_source_color4ub (priv->color.red,
priv->color.green,
priv->color.blue,
tmp_alpha);
cogl_rectangle (0, 0, width, height);
}
children = clutter_actor_get_children (actor);
g_list_foreach (children, (GFunc) clutter_actor_paint, NULL);
g_list_free (children);
}
static gboolean
clutter_box_real_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
gboolean retval = FALSE;
GList *children, *l;
/* if we have a background color, and an allocation, then we need to
* set it as the base of our paint volume
*/
if (priv->color_set)
retval = clutter_paint_volume_set_from_allocation (volume, actor);
retval = clutter_paint_volume_set_from_allocation (volume, actor);
children = clutter_actor_get_children (actor);
/* bail out early if we don't have any child */
if (children == NULL)
return retval;
else
retval = TRUE;
retval = TRUE;
/* otherwise, union the paint volumes of our children, in case
* any one of them decides to paint outside the parent's allocation
@ -227,16 +188,25 @@ clutter_box_get_property (GObject *gobject,
GValue *value,
GParamSpec *pspec)
{
ClutterBoxPrivate *priv = CLUTTER_BOX (gobject)->priv;
switch (prop_id)
{
case PROP_COLOR:
clutter_value_set_color (value, &priv->color);
{
ClutterColor color;
clutter_actor_get_background_color (CLUTTER_ACTOR (gobject),
&color);
clutter_value_set_color (value, &color);
}
break;
case PROP_COLOR_SET:
g_value_set_boolean (value, priv->color_set);
{
gboolean color_set;
g_object_get (gobject, "background-color-set", &color_set, NULL);
g_value_set_boolean (value, color_set);
}
break;
default:
@ -250,11 +220,9 @@ clutter_box_class_init (ClutterBoxClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
GParamSpec *pspec;
g_type_class_add_private (klass, sizeof (ClutterBoxPrivate));
actor_class->paint = clutter_box_real_paint;
actor_class->get_paint_volume = clutter_box_real_get_paint_volume;
actor_class->pick = clutter_box_real_pick;
@ -270,13 +238,12 @@ clutter_box_class_init (ClutterBoxClass *klass)
*
* Since: 1.2
*/
pspec = clutter_param_spec_color ("color",
P_("Color"),
P_("The background color of the box"),
&default_box_color,
CLUTTER_PARAM_READWRITE);
obj_props[PROP_COLOR] = pspec;
g_object_class_install_property (gobject_class, PROP_COLOR, pspec);
obj_props[PROP_COLOR] =
clutter_param_spec_color ("color",
P_("Color"),
P_("The background color of the box"),
&default_box_color,
CLUTTER_PARAM_READWRITE);
/**
* ClutterBox:color-set:
@ -285,21 +252,20 @@ clutter_box_class_init (ClutterBoxClass *klass)
*
* Since: 1.2
*/
pspec = g_param_spec_boolean ("color-set",
P_("Color Set"),
P_("Whether the background color is set"),
FALSE,
CLUTTER_PARAM_READWRITE);
obj_props[PROP_COLOR_SET] = pspec;
g_object_class_install_property (gobject_class, PROP_COLOR_SET, pspec);
obj_props[PROP_COLOR_SET] =
g_param_spec_boolean ("color-set",
P_("Color Set"),
P_("Whether the background color is set"),
FALSE,
CLUTTER_PARAM_READWRITE);
g_object_class_install_properties (gobject_class, PROP_LAST, obj_props);
}
static void
clutter_box_init (ClutterBox *self)
{
self->priv = CLUTTER_BOX_GET_PRIVATE (self);
self->priv->color = default_box_color;
}
/**
@ -706,21 +672,9 @@ void
clutter_box_set_color (ClutterBox *box,
const ClutterColor *color)
{
ClutterBoxPrivate *priv;
g_return_if_fail (CLUTTER_IS_BOX (box));
priv = box->priv;
if (color)
{
priv->color = *color;
priv->color_set = TRUE;
}
else
priv->color_set = FALSE;
clutter_actor_queue_redraw (CLUTTER_ACTOR (box));
clutter_actor_set_background_color (CLUTTER_ACTOR (box), color);
g_object_notify_by_pspec (G_OBJECT (box), obj_props[PROP_COLOR_SET]);
g_object_notify_by_pspec (G_OBJECT (box), obj_props[PROP_COLOR]);
@ -745,5 +699,5 @@ clutter_box_get_color (ClutterBox *box,
g_return_if_fail (CLUTTER_IS_BOX (box));
g_return_if_fail (color != NULL);
*color = box->priv->color;
clutter_actor_get_background_color (CLUTTER_ACTOR (box), color);
}