static void
st_box_layout_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StBoxLayoutPrivate *priv = ST_BOX_LAYOUT (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
ClutterLayoutManager *layout = clutter_actor_get_layout_manager (actor);
ClutterActorBox content_box;
gfloat avail_width, avail_height, min_width, natural_width, min_height, natural_height;
CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->allocate (actor, box, flags);
st_theme_node_get_content_box (theme_node, box, &content_box);
clutter_actor_box_get_size (&content_box, &avail_width, &avail_height);
clutter_layout_manager_get_preferred_width (layout, CLUTTER_CONTAINER (actor),
avail_height,
&min_width, &natural_width);
clutter_layout_manager_get_preferred_height (layout, CLUTTER_CONTAINER (actor),
MAX (avail_width, min_width),
&min_height, &natural_height);
/* update adjustments for scrolling */
if (priv->vadjustment)
{
gdouble prev_value;
g_object_set (G_OBJECT (priv->vadjustment),
"lower", 0.0,
"upper", MAX (min_height, avail_height),
"page-size", avail_height,
"step-increment", avail_height / 6,
"page-increment", avail_height - avail_height / 6,
NULL);
prev_value = st_adjustment_get_value (priv->vadjustment);
st_adjustment_set_value (priv->vadjustment, prev_value);
}
if (priv->hadjustment)
{
gdouble prev_value;
g_object_set (G_OBJECT (priv->hadjustment),
"lower", 0.0,
"upper", MAX (min_width, avail_width),
"page-size", avail_width,
"step-increment", avail_width / 6,
"page-increment", avail_width - avail_width / 6,
NULL);
prev_value = st_adjustment_get_value (priv->hadjustment);
st_adjustment_set_value (priv->hadjustment, prev_value);
}
}
static void
clutter_box_real_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height,
gfloat *natural_height)
{
ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
clutter_layout_manager_get_preferred_height (priv->manager,
CLUTTER_CONTAINER (actor),
for_width,
min_height, natural_height);
}
static void
champlain_group_real_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height,
gfloat *natural_height)
{
ChamplainGroupPrivate *priv = CHAMPLAIN_GROUP (actor)->priv;
clutter_layout_manager_get_preferred_height (priv->layout,
CLUTTER_CONTAINER (actor),
for_width,
min_height, natural_height);
}
static VALUE
rbclt_layout_manager_get_preferred_height (VALUE self, VALUE container, VALUE for_width)
{
ClutterLayoutManager *manager = CLUTTER_LAYOUT_MANAGER (RVAL2GOBJ (self));
ClutterContainer *g_container = CLUTTER_CONTAINER (RVAL2GOBJ (container));
gfloat min_height, nat_height;
VALUE answer = rb_hash_new ();
clutter_layout_manager_get_preferred_height (manager, g_container, NUM2INT (for_width), &min_height, &nat_height);
rb_hash_aset (answer, rb_intern("min"), rb_float_new (min_height));
rb_hash_aset (answer, rb_intern("nat"), rb_float_new (nat_height));
return answer;
}
