999 lines
29 KiB
C
999 lines
29 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2009,2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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/**
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* SECTION:clutter-box
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* @short_description: A Generic layout container
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*
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* #ClutterBox is a #ClutterActor sub-class implementing the #ClutterContainer
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* interface. A Box delegates the whole size requisition and size allocation to
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* a #ClutterLayoutManager instance.
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*
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* <example id="example-clutter-box">
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* <title>Using ClutterBox</title>
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* <para>The following code shows how to create a #ClutterBox with
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* a #ClutterLayoutManager sub-class, and how to add children to
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* it via clutter_box_pack().</para>
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* <programlisting>
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* ClutterActor *box;
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* ClutterLayoutManager *layout;
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*
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* /* Create the layout manager first */
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* layout = clutter_box_layout_new ();
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* clutter_box_layout_set_homogeneous (CLUTTER_BOX_LAYOUT (layout), TRUE);
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* clutter_box_layout_set_spacing (CLUTTER_BOX_LAYOUT (layout), 12);
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*
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* /* Then create the ClutterBox actor. The Box will take
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* * ownership of the ClutterLayoutManager instance by sinking
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* * its floating reference
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* */
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* box = clutter_box_new (layout);
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*
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* /* Now add children to the Box using the variadic arguments
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* * function clutter_box_pack() to set layout properties
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* */
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* clutter_box_pack (CLUTTER_BOX (box), actor,
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* "x-align", CLUTTER_BOX_ALIGNMENT_CENTER,
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* "y-align", CLUTTER_BOX_ALIGNMENT_END,
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* "expand", TRUE,
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* NULL);
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* </programlisting>
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* </example>
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*
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* #ClutterBox<!-- -->'s clutter_box_pack() wraps the generic
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* clutter_container_add_actor() function, but it also allows setting
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* layout properties while adding the new child to the box.
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*
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* #ClutterBox is available since Clutter 1.2
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <glib-object.h>
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#include <gobject/gvaluecollector.h>
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#include "clutter-box.h"
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#include "clutter-debug.h"
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#include "clutter-enum-types.h"
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#include "clutter-marshal.h"
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#include "clutter-private.h"
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#define CLUTTER_BOX_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_BOX, ClutterBoxPrivate))
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struct _ClutterBoxPrivate
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{
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ClutterLayoutManager *manager;
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GList *children;
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guint changed_id;
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ClutterColor color;
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guint color_set : 1;
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};
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enum
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{
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PROP_0,
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PROP_LAYOUT_MANAGER,
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PROP_COLOR,
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PROP_COLOR_SET,
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PROP_LAST
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};
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static GParamSpec *obj_props[PROP_LAST];
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static const ClutterColor default_box_color = { 255, 255, 255, 255 };
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static void clutter_container_iface_init (ClutterContainerIface *iface);
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G_DEFINE_TYPE_WITH_CODE (ClutterBox, clutter_box, CLUTTER_TYPE_ACTOR,
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G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_CONTAINER,
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clutter_container_iface_init));
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static gint
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sort_by_depth (gconstpointer a,
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gconstpointer b)
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{
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gfloat depth_a = clutter_actor_get_depth ((ClutterActor *) a);
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gfloat depth_b = clutter_actor_get_depth ((ClutterActor *) b);
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if (depth_a < depth_b)
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return -1;
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if (depth_a > depth_b)
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return 1;
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return 0;
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}
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static void
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clutter_box_real_add (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (container)->priv;
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GList *l, *prev = NULL;
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gfloat actor_depth;
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g_object_ref (actor);
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actor_depth = clutter_actor_get_depth (actor);
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/* Find the right place to insert the child so that it will still be
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sorted and the child will be after all of the actors at the same
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depth */
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for (l = priv->children;
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l && (clutter_actor_get_depth (l->data) <= actor_depth);
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l = l->next)
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prev = l;
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/* Insert the node before the found node */
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l = g_list_prepend (l, actor);
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/* Fixup the links */
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if (prev)
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{
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prev->next = l;
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l->prev = prev;
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}
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else
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priv->children = l;
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clutter_actor_set_parent (actor, CLUTTER_ACTOR (container));
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clutter_actor_queue_relayout (actor);
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g_signal_emit_by_name (container, "actor-added", actor);
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g_object_unref (actor);
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}
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static void
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clutter_box_real_remove (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (container)->priv;
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g_object_ref (actor);
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priv->children = g_list_remove (priv->children, actor);
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clutter_actor_unparent (actor);
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clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
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g_signal_emit_by_name (container, "actor-removed", actor);
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g_object_unref (actor);
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}
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static void
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clutter_box_real_foreach (ClutterContainer *container,
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ClutterCallback callback,
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gpointer user_data)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (container)->priv;
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/* Using g_list_foreach instead of iterating the list manually
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because it has better protection against the current node being
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removed. This will happen for example if someone calls
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clutter_container_foreach(container, clutter_actor_destroy) */
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g_list_foreach (priv->children, (GFunc) callback, user_data);
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}
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static void
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clutter_box_real_raise (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (container)->priv;
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priv->children = g_list_remove (priv->children, actor);
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if (sibling == NULL)
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priv->children = g_list_append (priv->children, actor);
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else
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{
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gint index_ = g_list_index (priv->children, sibling) + 1;
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priv->children = g_list_insert (priv->children, actor, index_);
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}
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clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
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}
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static void
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clutter_box_real_lower (ClutterContainer *container,
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ClutterActor *actor,
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ClutterActor *sibling)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (container)->priv;
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priv->children = g_list_remove (priv->children, actor);
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if (sibling == NULL)
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priv->children = g_list_prepend (priv->children, actor);
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else
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{
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gint index_ = g_list_index (priv->children, sibling);
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priv->children = g_list_insert (priv->children, actor, index_);
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}
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clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
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}
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static void
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clutter_box_real_sort_depth_order (ClutterContainer *container)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (container)->priv;
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priv->children = g_list_sort (priv->children, sort_by_depth);
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clutter_actor_queue_relayout (CLUTTER_ACTOR (container));
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}
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static void
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clutter_container_iface_init (ClutterContainerIface *iface)
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{
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iface->add = clutter_box_real_add;
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iface->remove = clutter_box_real_remove;
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iface->foreach = clutter_box_real_foreach;
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iface->raise = clutter_box_real_raise;
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iface->lower = clutter_box_real_lower;
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iface->sort_depth_order = clutter_box_real_sort_depth_order;
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}
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static void
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clutter_box_real_paint (ClutterActor *actor)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
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if (priv->color_set)
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{
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ClutterActorBox box = { 0, };
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gfloat width, height;
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guint8 tmp_alpha;
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clutter_actor_get_allocation_box (actor, &box);
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clutter_actor_box_get_size (&box, &width, &height);
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tmp_alpha = clutter_actor_get_paint_opacity (actor)
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* priv->color.alpha
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/ 255;
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cogl_set_source_color4ub (priv->color.red,
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priv->color.green,
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priv->color.blue,
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tmp_alpha);
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cogl_rectangle (0, 0, width, height);
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}
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g_list_foreach (priv->children, (GFunc) clutter_actor_paint, NULL);
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}
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static void
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clutter_box_real_pick (ClutterActor *actor,
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const ClutterColor *pick)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
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CLUTTER_ACTOR_CLASS (clutter_box_parent_class)->pick (actor, pick);
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g_list_foreach (priv->children, (GFunc) clutter_actor_paint, NULL);
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}
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static void
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clutter_box_real_get_preferred_width (ClutterActor *actor,
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gfloat for_height,
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gfloat *min_width,
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gfloat *natural_width)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
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clutter_layout_manager_get_preferred_width (priv->manager,
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CLUTTER_CONTAINER (actor),
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for_height,
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min_width, natural_width);
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}
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static void
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clutter_box_real_get_preferred_height (ClutterActor *actor,
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gfloat for_width,
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gfloat *min_height,
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gfloat *natural_height)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
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clutter_layout_manager_get_preferred_height (priv->manager,
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CLUTTER_CONTAINER (actor),
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for_width,
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min_height, natural_height);
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}
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static void
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clutter_box_real_allocate (ClutterActor *actor,
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const ClutterActorBox *allocation,
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ClutterAllocationFlags flags)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
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ClutterActorClass *klass;
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klass = CLUTTER_ACTOR_CLASS (clutter_box_parent_class);
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klass->allocate (actor, allocation, flags);
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clutter_layout_manager_allocate (priv->manager,
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CLUTTER_CONTAINER (actor),
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allocation, flags);
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}
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static void
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clutter_box_destroy (ClutterActor *actor)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (actor)->priv;
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/* destroy all our children */
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g_list_foreach (priv->children, (GFunc) clutter_actor_destroy, NULL);
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if (CLUTTER_ACTOR_CLASS (clutter_box_parent_class)->destroy)
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CLUTTER_ACTOR_CLASS (clutter_box_parent_class)->destroy (actor);
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}
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static inline void
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set_layout_manager (ClutterBox *self,
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ClutterLayoutManager *manager)
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{
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ClutterBoxPrivate *priv = self->priv;
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if (priv->manager == manager)
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return;
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if (priv->manager != NULL)
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{
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if (priv->changed_id != 0)
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g_signal_handler_disconnect (priv->manager, priv->changed_id);
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clutter_layout_manager_set_container (priv->manager, NULL);
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g_object_unref (priv->manager);
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priv->manager = NULL;
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priv->changed_id = 0;
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}
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if (manager != NULL)
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{
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priv->manager = g_object_ref_sink (manager);
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clutter_layout_manager_set_container (manager,
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CLUTTER_CONTAINER (self));
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priv->changed_id =
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g_signal_connect_swapped (priv->manager, "layout-changed",
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G_CALLBACK (clutter_actor_queue_relayout),
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self);
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}
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clutter_actor_queue_relayout (CLUTTER_ACTOR (self));
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_clutter_notify_by_pspec (G_OBJECT (self), obj_props[PROP_LAYOUT_MANAGER]);
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}
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static void
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clutter_box_dispose (GObject *gobject)
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{
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ClutterBox *self = CLUTTER_BOX (gobject);
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set_layout_manager (self, NULL);
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G_OBJECT_CLASS (clutter_box_parent_class)->dispose (gobject);
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}
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static void
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clutter_box_set_property (GObject *gobject,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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ClutterBox *self = CLUTTER_BOX (gobject);
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switch (prop_id)
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{
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case PROP_LAYOUT_MANAGER:
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set_layout_manager (self, g_value_get_object (value));
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break;
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case PROP_COLOR:
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clutter_box_set_color (self, clutter_value_get_color (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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static void
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clutter_box_get_property (GObject *gobject,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (gobject)->priv;
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switch (prop_id)
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{
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case PROP_LAYOUT_MANAGER:
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g_value_set_object (value, priv->manager);
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break;
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case PROP_COLOR:
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clutter_value_set_color (value, &priv->color);
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break;
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case PROP_COLOR_SET:
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g_value_set_boolean (value, priv->color_set);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
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break;
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}
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}
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static void
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clutter_box_class_init (ClutterBoxClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
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GParamSpec *pspec;
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g_type_class_add_private (klass, sizeof (ClutterBoxPrivate));
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actor_class->get_preferred_width = clutter_box_real_get_preferred_width;
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actor_class->get_preferred_height = clutter_box_real_get_preferred_height;
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actor_class->allocate = clutter_box_real_allocate;
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actor_class->paint = clutter_box_real_paint;
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actor_class->pick = clutter_box_real_pick;
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actor_class->destroy = clutter_box_destroy;
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gobject_class->set_property = clutter_box_set_property;
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gobject_class->get_property = clutter_box_get_property;
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gobject_class->dispose = clutter_box_dispose;
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/**
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* ClutterBox:layout-manager:
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*
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* The #ClutterLayoutManager used by the #ClutterBox
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*
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* Since: 1.2
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*/
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pspec = g_param_spec_object ("layout-manager",
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P_("Layout Manager"),
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P_("The layout manager used by the box"),
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CLUTTER_TYPE_LAYOUT_MANAGER,
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CLUTTER_PARAM_READWRITE |
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G_PARAM_CONSTRUCT);
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obj_props[PROP_LAYOUT_MANAGER] = pspec;
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g_object_class_install_property (gobject_class,
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PROP_LAYOUT_MANAGER,
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pspec);
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/**
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* ClutterBox:color:
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*
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* The color to be used to paint the background of the
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* #ClutterBox. Setting this property will set the
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* #ClutterBox:color-set property as a side effect
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*
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* Since: 1.2
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*/
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pspec = clutter_param_spec_color ("color",
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P_("Color"),
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P_("The background color of the box"),
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&default_box_color,
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CLUTTER_PARAM_READWRITE);
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obj_props[PROP_COLOR] = pspec;
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g_object_class_install_property (gobject_class, PROP_COLOR, pspec);
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/**
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* ClutterBox:color-set:
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*
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* Whether the #ClutterBox:color property has been set
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*
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* Since: 1.2
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*/
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pspec = g_param_spec_boolean ("color-set",
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P_("Color Set"),
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P_("Whether the background color is set"),
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FALSE,
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CLUTTER_PARAM_READWRITE);
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obj_props[PROP_COLOR_SET] = pspec;
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g_object_class_install_property (gobject_class, PROP_COLOR_SET, pspec);
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}
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static void
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clutter_box_init (ClutterBox *self)
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{
|
|
self->priv = CLUTTER_BOX_GET_PRIVATE (self);
|
|
|
|
self->priv->color = default_box_color;
|
|
}
|
|
|
|
/**
|
|
* clutter_box_new:
|
|
* @manager: a #ClutterLayoutManager
|
|
*
|
|
* Creates a new #ClutterBox. The children of the box will be layed
|
|
* out by the passed @manager
|
|
*
|
|
* Return value: the newly created #ClutterBox actor
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
ClutterActor *
|
|
clutter_box_new (ClutterLayoutManager *manager)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_LAYOUT_MANAGER (manager), NULL);
|
|
|
|
return g_object_new (CLUTTER_TYPE_BOX,
|
|
"layout-manager", manager,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* clutter_box_set_layout_manager:
|
|
* @box: a #ClutterBox
|
|
* @manager: a #ClutterLayoutManager
|
|
*
|
|
* Sets the #ClutterLayoutManager for @box
|
|
*
|
|
* A #ClutterLayoutManager is a delegate object that controls the
|
|
* layout of the children of @box
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_box_set_layout_manager (ClutterBox *box,
|
|
ClutterLayoutManager *manager)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
g_return_if_fail (CLUTTER_IS_LAYOUT_MANAGER (manager));
|
|
|
|
set_layout_manager (box, manager);
|
|
}
|
|
|
|
/**
|
|
* clutter_box_get_layout_manager:
|
|
* @box: a #ClutterBox
|
|
*
|
|
* Retrieves the #ClutterLayoutManager instance used by @box
|
|
*
|
|
* Return value: (transfer none): a #ClutterLayoutManager. The returned
|
|
* #ClutterLayoutManager is owned by the #ClutterBox and it should not
|
|
* be unreferenced
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
ClutterLayoutManager *
|
|
clutter_box_get_layout_manager (ClutterBox *box)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_BOX (box), NULL);
|
|
|
|
return box->priv->manager;
|
|
}
|
|
|
|
/**
|
|
* clutter_box_packv:
|
|
* @box: a #ClutterBox
|
|
* @actor: a #ClutterActor
|
|
* @n_properties: the number of properties to set
|
|
* @properties: (array length=n_properties) (element-type utf8): a vector
|
|
* containing the property names to set
|
|
* @values: (array length=n_properties): a vector containing the property
|
|
* values to set
|
|
*
|
|
* Vector-based variant of clutter_box_pack(), intended for language
|
|
* bindings to use
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_box_packv (ClutterBox *box,
|
|
ClutterActor *actor,
|
|
guint n_properties,
|
|
const gchar * const properties[],
|
|
const GValue *values)
|
|
{
|
|
ClutterContainer *container;
|
|
ClutterBoxPrivate *priv;
|
|
ClutterLayoutMeta *meta;
|
|
GObjectClass *klass;
|
|
gint i;
|
|
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
container = CLUTTER_CONTAINER (box);
|
|
clutter_container_add_actor (container, actor);
|
|
|
|
priv = box->priv;
|
|
|
|
meta = clutter_layout_manager_get_child_meta (priv->manager,
|
|
container,
|
|
actor);
|
|
|
|
if (meta == NULL)
|
|
return;
|
|
|
|
klass = G_OBJECT_GET_CLASS (meta);
|
|
|
|
for (i = 0; i < n_properties; i++)
|
|
{
|
|
const gchar *pname = properties[i];
|
|
GParamSpec *pspec;
|
|
|
|
pspec = g_object_class_find_property (klass, pname);
|
|
if (pspec == NULL)
|
|
{
|
|
g_warning ("%s: the layout property '%s' for managers "
|
|
"of type '%s' (meta type '%s') does not exist",
|
|
G_STRLOC,
|
|
pname,
|
|
G_OBJECT_TYPE_NAME (priv->manager),
|
|
G_OBJECT_TYPE_NAME (meta));
|
|
break;
|
|
}
|
|
|
|
if (!(pspec->flags & G_PARAM_WRITABLE))
|
|
{
|
|
g_warning ("%s: the layout property '%s' for managers "
|
|
"of type '%s' (meta type '%s') is not writable",
|
|
G_STRLOC,
|
|
pspec->name,
|
|
G_OBJECT_TYPE_NAME (priv->manager),
|
|
G_OBJECT_TYPE_NAME (meta));
|
|
break;
|
|
}
|
|
|
|
clutter_layout_manager_child_set_property (priv->manager,
|
|
container, actor,
|
|
pname, &values[i]);
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
clutter_box_set_property_valist (ClutterBox *box,
|
|
ClutterActor *actor,
|
|
const gchar *first_property,
|
|
va_list var_args)
|
|
{
|
|
ClutterContainer *container = CLUTTER_CONTAINER (box);
|
|
ClutterBoxPrivate *priv = box->priv;
|
|
ClutterLayoutMeta *meta;
|
|
GObjectClass *klass;
|
|
const gchar *pname;
|
|
|
|
if (priv->manager == NULL)
|
|
return;
|
|
|
|
meta = clutter_layout_manager_get_child_meta (priv->manager,
|
|
container,
|
|
actor);
|
|
|
|
if (meta == NULL)
|
|
return;
|
|
|
|
klass = G_OBJECT_GET_CLASS (meta);
|
|
|
|
pname = first_property;
|
|
while (pname)
|
|
{
|
|
GValue value = { 0, };
|
|
GParamSpec *pspec;
|
|
gchar *error;
|
|
|
|
pspec = g_object_class_find_property (klass, pname);
|
|
if (pspec == NULL)
|
|
{
|
|
g_warning ("%s: the layout property '%s' for managers "
|
|
"of type '%s' (meta type '%s') does not exist",
|
|
G_STRLOC,
|
|
pname,
|
|
G_OBJECT_TYPE_NAME (priv->manager),
|
|
G_OBJECT_TYPE_NAME (meta));
|
|
break;
|
|
}
|
|
|
|
if (!(pspec->flags & G_PARAM_WRITABLE))
|
|
{
|
|
g_warning ("%s: the layout property '%s' for managers "
|
|
"of type '%s' (meta type '%s') is not writable",
|
|
G_STRLOC,
|
|
pspec->name,
|
|
G_OBJECT_TYPE_NAME (priv->manager),
|
|
G_OBJECT_TYPE_NAME (meta));
|
|
break;
|
|
}
|
|
|
|
G_VALUE_COLLECT_INIT (&value, G_PARAM_SPEC_VALUE_TYPE (pspec),
|
|
var_args, 0,
|
|
&error);
|
|
|
|
if (error)
|
|
{
|
|
g_warning ("%s: %s", G_STRLOC, error);
|
|
g_free (error);
|
|
break;
|
|
}
|
|
|
|
clutter_layout_manager_child_set_property (priv->manager,
|
|
container, actor,
|
|
pspec->name, &value);
|
|
|
|
g_value_unset (&value);
|
|
|
|
pname = va_arg (var_args, gchar*);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_box_pack:
|
|
* @box: a #ClutterBox
|
|
* @actor: a #ClutterActor
|
|
* @first_property: the name of the first property to set, or %NULL
|
|
* @Varargs: a list of property name and value pairs, terminated by %NULL
|
|
*
|
|
* Adds @actor to @box and sets layout properties at the same time,
|
|
* if the #ClutterLayoutManager used by @box has them
|
|
*
|
|
* This function is a wrapper around clutter_container_add_actor()
|
|
* and clutter_layout_manager_child_set()
|
|
*
|
|
* Language bindings should use the vector-based clutter_box_addv()
|
|
* variant instead
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_box_pack (ClutterBox *box,
|
|
ClutterActor *actor,
|
|
const gchar *first_property,
|
|
...)
|
|
{
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (box), actor);
|
|
|
|
if (first_property == NULL || *first_property == '\0')
|
|
return;
|
|
|
|
va_start (var_args, first_property);
|
|
clutter_box_set_property_valist (box, actor, first_property, var_args);
|
|
va_end (var_args);
|
|
}
|
|
|
|
/**
|
|
* clutter_box_pack_after:
|
|
* @box: a #ClutterBox
|
|
* @actor: a #ClutterActor
|
|
* @sibling: (allow-none): a #ClutterActor or %NULL
|
|
* @first_property: the name of the first property to set, or %NULL
|
|
* @Varargs: a list of property name and value pairs, terminated by %NULL
|
|
*
|
|
* Adds @actor to @box, placing it after @sibling, and sets layout
|
|
* properties at the same time, if the #ClutterLayoutManager used by
|
|
* @box supports them
|
|
*
|
|
* If @sibling is %NULL then @actor is placed at the end of the
|
|
* list of children, to be allocated and painted after every other child
|
|
*
|
|
* This function is a wrapper around clutter_container_add_actor(),
|
|
* clutter_container_raise_child() and clutter_layout_manager_child_set()
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_box_pack_after (ClutterBox *box,
|
|
ClutterActor *actor,
|
|
ClutterActor *sibling,
|
|
const gchar *first_property,
|
|
...)
|
|
{
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
g_return_if_fail (sibling == NULL || CLUTTER_IS_ACTOR (sibling));
|
|
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (box), actor);
|
|
clutter_container_raise_child (CLUTTER_CONTAINER (box), actor, sibling);
|
|
|
|
if (first_property == NULL || *first_property == '\0')
|
|
return;
|
|
|
|
va_start (var_args, first_property);
|
|
clutter_box_set_property_valist (box, actor, first_property, var_args);
|
|
va_end (var_args);
|
|
}
|
|
|
|
/**
|
|
* clutter_box_pack_before:
|
|
* @box: a #ClutterBox
|
|
* @actor: a #ClutterActor
|
|
* @sibling: (allow-none): a #ClutterActor or %NULL
|
|
* @first_property: the name of the first property to set, or %NULL
|
|
* @Varargs: a list of property name and value pairs, terminated by %NULL
|
|
*
|
|
* Adds @actor to @box, placing it before @sibling, and sets layout
|
|
* properties at the same time, if the #ClutterLayoutManager used by
|
|
* @box supports them
|
|
*
|
|
* If @sibling is %NULL then @actor is placed at the beginning of the
|
|
* list of children, to be allocated and painted below every other child
|
|
*
|
|
* This function is a wrapper around clutter_container_add_actor(),
|
|
* clutter_container_lower_child() and clutter_layout_manager_child_set()
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_box_pack_before (ClutterBox *box,
|
|
ClutterActor *actor,
|
|
ClutterActor *sibling,
|
|
const gchar *first_property,
|
|
...)
|
|
{
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
g_return_if_fail (sibling == NULL || CLUTTER_IS_ACTOR (sibling));
|
|
|
|
clutter_container_add_actor (CLUTTER_CONTAINER (box), actor);
|
|
clutter_container_lower_child (CLUTTER_CONTAINER (box), actor, sibling);
|
|
|
|
if (first_property == NULL || *first_property == '\0')
|
|
return;
|
|
|
|
va_start (var_args, first_property);
|
|
clutter_box_set_property_valist (box, actor, first_property, var_args);
|
|
va_end (var_args);
|
|
}
|
|
|
|
/**
|
|
* clutter_box_pack_at:
|
|
* @box: a #ClutterBox
|
|
* @actor: a #ClutterActor
|
|
* @position: the position to insert the @actor at
|
|
* @first_property: the name of the first property to set, or %NULL
|
|
* @Varargs: a list of property name and value pairs, terminated by %NULL
|
|
*
|
|
* Adds @actor to @box, placing it at @position, and sets layout
|
|
* properties at the same time, if the #ClutterLayoutManager used by
|
|
* @box supports them
|
|
*
|
|
* If @position is a negative number, or is larger than the number of
|
|
* children of @box, the new child is added at the end of the list of
|
|
* children
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
clutter_box_pack_at (ClutterBox *box,
|
|
ClutterActor *actor,
|
|
gint position,
|
|
const gchar *first_property,
|
|
...)
|
|
{
|
|
ClutterBoxPrivate *priv;
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
g_return_if_fail (CLUTTER_IS_ACTOR (actor));
|
|
|
|
priv = box->priv;
|
|
|
|
/* this is really clutter_box_add() with a different insert() */
|
|
priv->children = g_list_insert (priv->children,
|
|
actor,
|
|
position);
|
|
|
|
clutter_actor_set_parent (actor, CLUTTER_ACTOR (box));
|
|
clutter_actor_queue_relayout (actor);
|
|
|
|
/* we need to explicitly call this, because we're not going through
|
|
* the default code paths provided by clutter_container_add()
|
|
*/
|
|
clutter_container_create_child_meta (CLUTTER_CONTAINER (box), actor);
|
|
|
|
g_signal_emit_by_name (box, "actor-added", actor);
|
|
|
|
if (first_property == NULL || *first_property == '\0')
|
|
return;
|
|
|
|
va_start (var_args, first_property);
|
|
clutter_box_set_property_valist (box, actor, first_property, var_args);
|
|
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));
|
|
|
|
_clutter_notify_by_pspec (G_OBJECT (box), obj_props[PROP_COLOR_SET]);
|
|
_clutter_notify_by_pspec (G_OBJECT (box), obj_props[PROP_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;
|
|
}
|