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[layout, box] Add Box:color

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Allow setting the background color of a ClutterBox
This commit is contained in:
Emmanuele Bassi 2009-09-17 18:21:51 +01:00
parent df6ca3d171
commit c98388bb01
3 changed files with 144 additions and 1 deletions
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136
clutter/clutter-box.c
View File

@ -29,15 +29,22 @@ struct _ClutterBoxPrivate
GList *children;
guint changed_id;
ClutterColor color;
guint color_set : 1;
};
enum
{
PROP_0,
PROP_LAYOUT_MANAGER
PROP_LAYOUT_MANAGER,
PROP_COLOR,
PROP_COLOR_SET
};
static const ClutterColor default_box_color = { 255, 255, 255, 255 };
static void clutter_container_iface_init (ClutterContainerIface *iface);
G_DEFINE_TYPE_WITH_CODE (ClutterBox, clutter_box, CLUTTER_TYPE_ACTOR,
@ -187,6 +194,27 @@ clutter_box_real_paint (ClutterActor *actor)
{
ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
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);
}
g_list_foreach (priv->children, (GFunc) clutter_actor_paint, NULL);
}
@ -351,6 +379,10 @@ clutter_box_set_property (GObject *gobject,
set_layout_manager (self, g_value_get_object (value));
break;
case PROP_COLOR:
clutter_box_set_color (self, clutter_value_get_color (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
@ -371,6 +403,14 @@ clutter_box_get_property (GObject *gobject,
g_value_set_object (value, priv->manager);
break;
case PROP_COLOR:
clutter_value_set_color (value, &priv->color);
break;
case PROP_COLOR_SET:
g_value_set_boolean (value, priv->color_set);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
@ -397,6 +437,13 @@ clutter_box_class_init (ClutterBoxClass *klass)
gobject_class->get_property = clutter_box_get_property;
gobject_class->dispose = clutter_box_dispose;
/**
* ClutterBox:layout-manager:
*
* The #ClutterLayoutManager used by the #ClutterBox
*
* Since: 1.2
*/
pspec = g_param_spec_object ("layout-manager",
"Layout Manager",
"The layout manager used by the box",
@ -406,12 +453,44 @@ clutter_box_class_init (ClutterBoxClass *klass)
g_object_class_install_property (gobject_class,
PROP_LAYOUT_MANAGER,
pspec);
/**
* ClutterBox:color:
*
* The color to be used to paint the background of the
* #ClutterBox. Setting this property will set the
* #ClutterBox:color-set property as a side effect
*
* Since: 1.2
*/
pspec = clutter_param_spec_color ("color",
"Color",
"The background color of the box",
&default_box_color,
CLUTTER_PARAM_READWRITE);
g_object_class_install_property (gobject_class, PROP_COLOR, pspec);
/**
* ClutterBox:color-set:
*
* Whether the #ClutterBox:color property has been set
*
* Since: 1.2
*/
pspec = g_param_spec_boolean ("color-set",
"Color Set",
"Whether the background color is set",
FALSE,
CLUTTER_PARAM_READWRITE);
g_object_class_install_property (gobject_class, PROP_COLOR_SET, pspec);
}
static void
clutter_box_init (ClutterBox *self)
{
self->priv = CLUTTER_BOX_GET_PRIVATE (self);
self->priv->color = default_box_color;
}
/**
@ -657,3 +736,58 @@ clutter_box_pack (ClutterBox *box,
va_end (var_args);
}
/**
* clutter_box_set_color:
* @box: a #ClutterBox
* @color: (allow-none): the background color, or %NULL to unset
*
* Sets (or unsets) the background color for @box
*
* Since: 1.2
*/
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));
g_object_notify (G_OBJECT (box), "color-set");
g_object_notify (G_OBJECT (box), "color");
}
/**
* clutter_box_get_color:
* @box: a #ClutterBox
* @color: (out): return location for a #ClutterColor
*
* Retrieves the background color of @box
*
* If the #ClutterBox:color-set property is set to %FALSE the
* returned #ClutterColor is undefined
*
* Since: 1.2
*/
void
clutter_box_get_color (ClutterBox *box,
ClutterColor *color)
{
g_return_if_fail (CLUTTER_IS_BOX (box));
g_return_if_fail (color != NULL);
*color = box->priv->color;
}

5
clutter/clutter-box.h
View File

@ -42,6 +42,11 @@ void clutter_box_set_layout_manager (ClutterBox *box,
ClutterLayoutManager *manger);
ClutterLayoutManager *clutter_box_get_layout_manager (ClutterBox *box);
void clutter_box_set_color (ClutterBox *box,
const ClutterColor *color);
void clutter_box_get_color (ClutterBox *box,
ClutterColor *color);
void clutter_box_pack (ClutterBox *box,
ClutterActor *actor,
const gchar *first_property,

4
doc/reference/clutter/clutter-sections.txt
View File

@ -1809,6 +1809,10 @@ ClutterBoxClass
clutter_box_new
clutter_box_set_layout_manager
clutter_box_get_layout_manager
clutter_box_set_color
clutter_box_get_color
<SUBSECTION>
clutter_box_pack
clutter_box_packv