mirror of
https://github.com/brl/mutter.git
synced 2024-12-23 19:42:05 +00:00
[box] Add ClutterBox
ClutterBox is an actor with no layout management. It relies on a ClutterLayoutManager to perform size requisition and allocation of its children.
This commit is contained in:
Emmanuele Bassi
parent
d6183e95e5
commit
0340f65634
@ -65,6 +65,7 @@ source_h = \
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$(srcdir)/clutter-behaviour-rotate.h \
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$(srcdir)/clutter-behaviour-scale.h \
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$(srcdir)/clutter-binding-pool.h \
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$(srcdir)/clutter-box.h \
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$(srcdir)/clutter-cairo-texture.h \
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$(srcdir)/clutter-child-meta.h \
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$(srcdir)/clutter-clone.h \
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@ -130,6 +131,7 @@ source_c = \
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$(srcdir)/clutter-behaviour-scale.c \
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$(srcdir)/clutter-bezier.c \
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$(srcdir)/clutter-binding-pool.c \
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$(srcdir)/clutter-box.c \
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$(srcdir)/clutter-cairo-texture.c \
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$(srcdir)/clutter-child-meta.c \
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$(srcdir)/clutter-clone.c \
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368
clutter/clutter-box.c
Normal file
368
clutter/clutter-box.c
Normal file
@ -0,0 +1,368 @@
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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 FIXME
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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 "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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};
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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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};
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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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g_object_ref (actor);
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priv->children = g_list_insert_sorted (priv->children,
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actor,
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sort_by_depth);
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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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GList *l;
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for (l = priv->children; l != NULL; l = l->next)
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(* callback) (l->data, 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_redraw (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_redraw (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_redraw (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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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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if (priv->children == NULL)
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{
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if (min_width)
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*min_width = 0.0;
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if (natural_width)
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*natural_width = 0.0;
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return;
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}
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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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if (priv->children == NULL)
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{
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if (min_height)
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*min_height = 0.0;
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if (natural_height)
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*natural_height = 0.0;
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return;
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}
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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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if (priv->children == NULL)
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return;
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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_dispose (GObject *gobject)
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{
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ClutterBoxPrivate *priv = CLUTTER_BOX (gobject)->priv;
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if (priv->manager != NULL)
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{
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g_object_unref (priv->manager);
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priv->manager = NULL;
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}
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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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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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priv->manager = g_value_dup_object (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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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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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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pspec = g_param_spec_object ("layout-manager",
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"Layout Manager",
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"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_ONLY);
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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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static void
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clutter_box_init (ClutterBox *self)
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{
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self->priv = CLUTTER_BOX_GET_PRIVATE (self);
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}
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/**
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* clutter_box_new:
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* @manager: a #ClutterLayoutManager
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*
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* Creates a new #ClutterBox. The children of the box will be layed
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* out by the passed @manager
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*
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* Return value: the newly created #ClutterBox actor
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*
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* Since: 1.0
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*/
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ClutterActor *
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clutter_box_new (ClutterLayoutManager *manager)
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{
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g_return_val_if_fail (CLUTTER_IS_LAYOUT_MANAGER (manager), NULL);
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return g_object_new (CLUTTER_TYPE_BOX,
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"layout-manager", manager,
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NULL);
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}
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43
clutter/clutter-box.h
Normal file
43
clutter/clutter-box.h
Normal file
@ -0,0 +1,43 @@
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_BOX_H__
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#define __CLUTTER_BOX_H__
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#include <clutter/clutter-actor.h>
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#include <clutter/clutter-container.h>
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#include <clutter/clutter-layout-manager.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BOX (clutter_box_get_type ())
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#define CLUTTER_BOX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BOX, ClutterBox))
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#define CLUTTER_IS_BOX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BOX))
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#define CLUTTER_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BOX, ClutterBoxClass))
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#define CLUTTER_IS_BOX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BOX))
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#define CLUTTER_BOX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BOX, ClutterBoxClass))
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typedef struct _ClutterBox ClutterBox;
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typedef struct _ClutterBoxPrivate ClutterBoxPrivate;
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typedef struct _ClutterBoxClass ClutterBoxClass;
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struct _ClutterBox
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{
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ClutterActor parent_instance;
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ClutterBoxPrivate *priv;
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};
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struct _ClutterBoxClass
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{
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ClutterActorClass parent_class;
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};
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GType clutter_box_get_type (void) G_GNUC_CONST;
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ClutterActor *clutter_box_new (ClutterLayoutManager *manager);
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G_END_DECLS
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#endif /* __CLUTTER_BOX_H__ */
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@ -43,6 +43,7 @@
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#include "clutter-behaviour-rotate.h"
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#include "clutter-behaviour-scale.h"
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#include "clutter-binding-pool.h"
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#include "clutter-box.h"
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#include "clutter-cairo-texture.h"
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#include "clutter-child-meta.h"
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#include "clutter-clone.h"
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Block a user