mirror of
https://github.com/brl/mutter.git
synced 2024-11-10 16:16:20 -05:00
5c8d18e619
To avoid using a ClutterPadding each time you add an actor to a ClutterBox when you want the same padding around each child, you can now set the default padding. The API is pixel-based, since it's a commodity function, and will affect only clutter_box_pack_defaults().
745 lines
18 KiB
C
745 lines
18 KiB
C
#include "config.h"
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#include "cogl.h"
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#include "clutter-box.h"
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#include "clutter-container.h"
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#include "clutter-debug.h"
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#include "clutter-enum-types.h"
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#include "clutter-main.h"
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#include "clutter-private.h"
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/**
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* SECTION:clutter-box
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* @short_description: Base class for layout containers
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*
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* FIXME
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*
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* #ClutterBox is available since Clutter 0.4
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*/
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enum
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{
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PROP_0,
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PROP_MARGIN,
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PROP_COLOR
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};
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static void clutter_container_iface_init (ClutterContainerIface *iface);
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (ClutterBox,
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clutter_box,
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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 void
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clutter_box_add (ClutterContainer *container,
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ClutterActor *actor)
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{
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clutter_box_pack_defaults (CLUTTER_BOX (container), actor);
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}
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static void
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clutter_box_remove (ClutterContainer *container,
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ClutterActor *actor)
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{
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ClutterBox *box = CLUTTER_BOX (container);
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GList *l;
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g_object_ref (actor);
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for (l = box->children; l; l = l->next)
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{
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ClutterBoxChild *child = l->data;
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if (child->actor == actor)
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{
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CLUTTER_BOX_GET_CLASS (box)->unpack_child (box, child);
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clutter_actor_unparent (actor);
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box->children = g_list_remove_link (box->children, l);
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g_list_free (l);
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g_slice_free (ClutterBoxChild, child);
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g_signal_emit_by_name (container, "actor-removed", actor);
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if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (box)))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (box));
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break;
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}
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}
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g_object_unref (actor);
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}
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static void
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clutter_box_foreach (ClutterContainer *container,
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ClutterCallback callback,
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gpointer user_data)
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{
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ClutterBox *box = CLUTTER_BOX (container);
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GList *l;
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for (l = box->children; l; l = l->next)
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{
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ClutterBoxChild *child = l->data;
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if (child->pack_type == CLUTTER_PACK_START)
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(* callback) (child->actor, user_data);
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}
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for (l = g_list_last (box->children); l; l = l->prev)
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{
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ClutterBoxChild *child = l->data;
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if (child->pack_type == CLUTTER_PACK_END)
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(* callback) (child->actor, user_data);
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}
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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_add;
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iface->remove = clutter_box_remove;
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iface->foreach = clutter_box_foreach;
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}
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static void
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clutter_box_show_all (ClutterActor *actor)
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{
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ClutterBox *box = CLUTTER_BOX (actor);
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GList *l;
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for (l = box->children; l; l = l->next)
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{
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ClutterBoxChild *child = l->data;
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clutter_actor_show (child->actor);
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}
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clutter_actor_show (actor);
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}
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static void
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clutter_box_hide_all (ClutterActor *actor)
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{
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ClutterBox *box = CLUTTER_BOX (actor);
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GList *l;
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clutter_actor_hide (actor);
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for (l = box->children; l; l = l->next)
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{
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ClutterBoxChild *child = l->data;
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clutter_actor_hide (child->actor);
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}
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}
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static void
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clutter_box_paint (ClutterActor *actor)
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{
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ClutterBox *box = CLUTTER_BOX (actor);
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GList *l;
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cogl_push_matrix ();
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cogl_color (&box->color);
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for (l = box->children; l; l = l->next)
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{
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ClutterBoxChild *child = l->data;
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if (CLUTTER_ACTOR_IS_MAPPED (child->actor))
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clutter_actor_paint (child->actor);
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}
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cogl_pop_matrix ();
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}
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static void
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clutter_box_pick (ClutterActor *actor,
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const ClutterColor *color)
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{
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/* just repaint; in the future we might enter in a "focused" status here */
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clutter_box_paint (actor);
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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 *box = CLUTTER_BOX (gobject);
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GList *l;
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for (l = box->children; l; l = l->next)
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{
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ClutterBoxChild *child = l->data;
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clutter_actor_destroy (child->actor);
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g_slice_free (ClutterBoxChild, child);
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}
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g_list_free (box->children);
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box->children = 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_pack_child_unimplemented (ClutterBox *box,
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ClutterBoxChild *child)
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{
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g_warning ("ClutterBox of type `%s' does not implement the "
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"ClutterBox::pack_child method.",
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g_type_name (G_OBJECT_TYPE (box)));
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}
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static void
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clutter_box_unpack_child_unimplemented (ClutterBox *box,
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ClutterBoxChild *child)
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{
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g_warning ("ClutterBox of type `%s' does not implement the "
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"ClutterBox::unpack_child method.",
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g_type_name (G_OBJECT_TYPE (box)));
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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 *box = CLUTTER_BOX (gobject);
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switch (prop_id)
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{
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case PROP_COLOR:
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clutter_box_set_color (box, g_value_get_boxed (value));
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break;
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case PROP_MARGIN:
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clutter_box_set_margin (box, g_value_get_boxed (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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ClutterBox *box = CLUTTER_BOX (gobject);
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switch (prop_id)
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{
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case PROP_MARGIN:
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{
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ClutterMargin margin;
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clutter_box_get_margin (box, &margin);
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g_value_set_boxed (value, &margin);
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}
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break;
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case PROP_COLOR:
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{
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ClutterColor color;
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clutter_box_get_color (box, &color);
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g_value_set_boxed (value, &color);
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}
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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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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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actor_class->show_all = clutter_box_show_all;
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actor_class->hide_all = clutter_box_hide_all;
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actor_class->paint = clutter_box_paint;
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actor_class->pick = clutter_box_pick;
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klass->pack_child = clutter_box_pack_child_unimplemented;
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klass->unpack_child = clutter_box_unpack_child_unimplemented;
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/**
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* ClutterBox:margin:
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*
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* The margin between the inner border of a #ClutterBox and its
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* children.
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*
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* Since: 0.4
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*/
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g_object_class_install_property (gobject_class,
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PROP_MARGIN,
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g_param_spec_boxed ("margin",
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"Margin",
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"Margin between the inner border of a box and its children",
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CLUTTER_TYPE_MARGIN,
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CLUTTER_PARAM_READWRITE));
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/**
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* ClutterBox:color:
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*
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* The background color of a #ClutterBox.
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*
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* Since: 0.4
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*/
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g_object_class_install_property (gobject_class,
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PROP_COLOR,
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g_param_spec_boxed ("color",
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"Color",
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"Background color of a box",
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CLUTTER_TYPE_COLOR,
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CLUTTER_PARAM_READWRITE));
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}
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static void
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clutter_box_init (ClutterBox *box)
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{
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box->allocation.x1 = box->allocation.y1 = 0;
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box->allocation.x2 = box->allocation.y2 = -1;
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}
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/*
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* Public API
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*/
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/**
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* clutter_box_pack:
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* @box: a #ClutterBox
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* @actor: a #ClutterActor
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*
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* Packs @actor into @box.
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*
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* Since: 0.4
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*/
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void
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clutter_box_pack (ClutterBox *box,
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ClutterActor *actor,
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ClutterPackType pack_type,
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const ClutterPadding *padding)
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{
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ClutterBoxChild *child;
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g_return_if_fail (CLUTTER_IS_BOX (box));
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g_return_if_fail (CLUTTER_IS_ACTOR (actor));
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child = g_slice_new (ClutterBoxChild);
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child->actor = actor;
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child->pack_type = pack_type;
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memcpy (&(child->padding), padding, sizeof (ClutterPadding));
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CLUTTER_BOX_GET_CLASS (box)->pack_child (box, child);
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box->children = g_list_prepend (box->children, child);
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clutter_actor_set_parent (actor, CLUTTER_ACTOR (box));
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if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (box)))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (box));
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}
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/**
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* clutter_box_pack_defaults:
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* @box: a #ClutterBox
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* @actor: a #ClutterActor
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*
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* Packs @actor into @box, using the default settings for the
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* pack type and padding.
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*
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* Since: 0.4
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*/
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void
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clutter_box_pack_defaults (ClutterBox *box,
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ClutterActor *actor)
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{
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g_return_if_fail (CLUTTER_IS_BOX (box));
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g_return_if_fail (CLUTTER_IS_ACTOR (actor));
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clutter_box_pack (box, actor,
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CLUTTER_PACK_START,
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&box->default_padding);
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}
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/**
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* clutter_box_query_child:
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* @box: a #ClutterBox
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* @actor: child to query
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* @child: return location for a #ClutterBoxChild or %NULL
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*
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* Queries @box for the packing data of @actor.
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*
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* Return value: %TRUE if @actor is a child of @box
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*
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* Since: 0.4
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*/
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gboolean
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clutter_box_query_child (ClutterBox *box,
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ClutterActor *actor,
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ClutterBoxChild *child)
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{
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GList *l;
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g_return_val_if_fail (CLUTTER_IS_BOX (box), FALSE);
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g_return_val_if_fail (CLUTTER_IS_ACTOR (actor), FALSE);
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for (l = box->children; l; l = l->next)
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{
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ClutterBoxChild *box_child = l->data;
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if (box_child->actor == actor)
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{
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if (child)
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{
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child->actor = actor;
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child->pack_type = box_child->pack_type;
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child->child_coords.x1 = box_child->child_coords.x1;
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child->child_coords.y1 = box_child->child_coords.y1;
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child->child_coords.x2 = box_child->child_coords.x2;
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child->child_coords.y2 = box_child->child_coords.y2;
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child->padding.top = box_child->padding.top;
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child->padding.right = box_child->padding.right;
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child->padding.bottom = box_child->padding.bottom;
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child->padding.left = box_child->padding.left;
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}
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return TRUE;
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}
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}
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return FALSE;
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}
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/**
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* clutter_box_query_nth_child:
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* @box: a #ClutterBox
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* @index_: position of the child
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* @child: return value for a #ClutterBoxChild, or %NULL
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*
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* Queries the child of @box at @index_ and puts the packing informations
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* inside @child.
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*
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* Return value: %TRUE if an actor was found at @index_
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*
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* Since: 0.4
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*/
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gboolean
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clutter_box_query_nth_child (ClutterBox *box,
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gint index_,
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ClutterBoxChild *child)
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{
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ClutterBoxChild *box_child;
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g_return_val_if_fail (CLUTTER_IS_BOX (box), FALSE);
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g_return_val_if_fail (index > 0, FALSE);
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box_child = g_list_nth_data (box->children, index_);
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if (!box_child)
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return FALSE;
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if (child)
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{
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child->actor = box_child->actor;
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child->pack_type = box_child->pack_type;
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child->child_coords.x1 = box_child->child_coords.x1;
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child->child_coords.y1 = box_child->child_coords.y1;
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child->child_coords.x2 = box_child->child_coords.x2;
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child->child_coords.y2 = box_child->child_coords.y2;
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child->padding.top = box_child->padding.top;
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child->padding.right = box_child->padding.right;
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child->padding.bottom = box_child->padding.bottom;
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child->padding.left = box_child->padding.left;
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}
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return TRUE;
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}
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/**
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* clutter_box_get_margin:
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* @box: a #ClutterBox
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* @margin: return location for a #ClutterMargin
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*
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* Gets the value set using clutter_box_set_margin().
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*
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* Since: 0.4
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*/
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void
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clutter_box_get_margin (ClutterBox *box,
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ClutterMargin *margin)
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{
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g_return_if_fail (CLUTTER_IS_BOX (box));
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g_return_if_fail (margin != NULL);
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margin->top = box->margin.top;
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margin->right = box->margin.right;
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margin->bottom = box->margin.bottom;
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margin->left = box->margin.left;
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}
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/**
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* clutter_box_set_margin:
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* @box: a #ClutterBox
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* @margin: a #ClutterMargin, or %NULL to unset the margin
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*
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* Sets the margin, in #ClutterUnit<!-- -->s, between the inner border
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* of the box and the children of the box.
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*
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* Since: 0.4
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*/
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void
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clutter_box_set_margin (ClutterBox *box,
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const ClutterMargin *margin)
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{
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g_return_if_fail (CLUTTER_IS_BOX (box));
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if (margin)
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{
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box->margin.top = margin->top;
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box->margin.right = margin->right;
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box->margin.bottom = margin->bottom;
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box->margin.left = margin->left;
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}
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else
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{
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box->margin.top = 0;
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box->margin.right = 0;
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box->margin.bottom = 0;
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box->margin.left = 0;
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}
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if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (box)))
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clutter_actor_queue_redraw (CLUTTER_ACTOR (box));
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g_object_notify (G_OBJECT (box), "margin");
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}
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/**
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* clutter_box_get_color:
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* @box: a #ClutterBox
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* @color: return location for the color
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*
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* Gets the background color of the box set with clutter_box_set_color().
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*
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* Since: 0.4
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*/
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void
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clutter_box_get_color (ClutterBox *box,
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ClutterColor *color)
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{
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g_return_if_fail (CLUTTER_IS_BOX (box));
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g_return_if_fail (color != NULL);
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|
|
color->red = box->color.red;
|
|
color->green = box->color.green;
|
|
color->blue = box->color.blue;
|
|
color->alpha = box->color.alpha;
|
|
}
|
|
|
|
/**
|
|
* clutter_box_set_color:
|
|
* @box: a #ClutterBox
|
|
* @color: the background color of the box
|
|
*
|
|
* Sets the background color of the box.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
void
|
|
clutter_box_set_color (ClutterBox *box,
|
|
const ClutterColor *color)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
g_return_if_fail (color != NULL);
|
|
|
|
box->color.red = color->red;
|
|
box->color.green = color->green;
|
|
box->color.blue = color->blue;
|
|
box->color.alpha = color->alpha;
|
|
|
|
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (box)))
|
|
clutter_actor_queue_redraw (CLUTTER_ACTOR (box));
|
|
|
|
g_object_notify (G_OBJECT (box), "color");
|
|
}
|
|
|
|
/**
|
|
* clutter_box_remove_all:
|
|
* @box: a #ClutterBox
|
|
*
|
|
* Removes all children actors from the #ClutterBox
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
void
|
|
clutter_box_remove_all (ClutterBox *box)
|
|
{
|
|
GList *children;
|
|
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
|
|
children = box->children;
|
|
while (children)
|
|
{
|
|
ClutterBoxChild *child = children->data;
|
|
children = children->next;
|
|
|
|
clutter_container_remove_actor (CLUTTER_CONTAINER (box), child->actor);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* clutter_box_set_default_padding:
|
|
* @box: a #ClutterBox
|
|
* @padding_top: top padding, in pixels
|
|
* @padding_right: right padding, in pixels
|
|
* @padding_bottom: bottom padding, in pixels
|
|
* @padding_left: left padding, in pixels
|
|
*
|
|
* Sets the default padding for children, which will be used when
|
|
* packing actors with clutter_box_pack_defaults(). The padding is
|
|
* given in pixels.
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
void
|
|
clutter_box_set_default_padding (ClutterBox *box,
|
|
gint padding_top,
|
|
gint padding_right,
|
|
gint padding_bottom,
|
|
gint padding_left)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
|
|
box->default_padding.top = CLUTTER_UNITS_FROM_INT (padding_top);
|
|
box->default_padding.right = CLUTTER_UNITS_FROM_INT (padding_right);
|
|
box->default_padding.bottom = CLUTTER_UNITS_FROM_INT (padding_bottom);
|
|
box->default_padding.left = CLUTTER_UNITS_FROM_INT (padding_left);
|
|
}
|
|
|
|
/**
|
|
* clutter_box_get_default_padding:
|
|
* @box: a #ClutterBox
|
|
* @padding_top: return location for the top padding, or %NULL
|
|
* @padding_right: return location for the right padding, or %NULL
|
|
* @padding_bottom: return location for the bottom padding, or %NULL
|
|
* @padding_left: return location for the left padding, or %NULL
|
|
*
|
|
* Gets the default padding set with clutter_box_set_default_padding().
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
void
|
|
clutter_box_get_default_padding (ClutterBox *box,
|
|
gint *padding_top,
|
|
gint *padding_right,
|
|
gint *padding_bottom,
|
|
gint *padding_left)
|
|
{
|
|
g_return_if_fail (CLUTTER_IS_BOX (box));
|
|
|
|
if (padding_top)
|
|
*padding_top = CLUTTER_UNITS_TO_INT (box->default_padding.top);
|
|
if (padding_right)
|
|
*padding_right = CLUTTER_UNITS_TO_INT (box->default_padding.right);
|
|
if (padding_bottom)
|
|
*padding_bottom = CLUTTER_UNITS_TO_INT (box->default_padding.bottom);
|
|
if (padding_left)
|
|
*padding_left = CLUTTER_UNITS_TO_INT (box->default_padding.left);
|
|
}
|
|
|
|
/*
|
|
* Boxed types
|
|
*/
|
|
|
|
static void
|
|
clutter_margin_free (ClutterMargin *margin)
|
|
{
|
|
if (G_LIKELY (margin))
|
|
{
|
|
g_slice_free (ClutterMargin, margin);
|
|
}
|
|
}
|
|
|
|
static ClutterMargin *
|
|
clutter_margin_copy (const ClutterMargin *margin)
|
|
{
|
|
ClutterMargin *copy;
|
|
|
|
g_return_val_if_fail (margin != NULL, NULL);
|
|
|
|
copy = g_slice_new (ClutterMargin);
|
|
*copy = *margin;
|
|
|
|
return copy;
|
|
}
|
|
|
|
GType
|
|
clutter_margin_get_type (void)
|
|
{
|
|
static GType gtype = 0;
|
|
|
|
if (G_UNLIKELY (gtype == 0))
|
|
gtype = g_boxed_type_register_static (g_intern_static_string ("ClutterMargin"),
|
|
(GBoxedCopyFunc) clutter_margin_copy,
|
|
(GBoxedFreeFunc) clutter_margin_free);
|
|
|
|
return gtype;
|
|
}
|
|
|
|
static void
|
|
clutter_padding_free (ClutterPadding *padding)
|
|
{
|
|
if (G_LIKELY (padding))
|
|
{
|
|
g_slice_free (ClutterPadding, padding);
|
|
}
|
|
}
|
|
|
|
static ClutterPadding *
|
|
clutter_padding_copy (const ClutterPadding *padding)
|
|
{
|
|
ClutterPadding *copy;
|
|
|
|
g_return_val_if_fail (padding != NULL, NULL);
|
|
|
|
copy = g_slice_new (ClutterPadding);
|
|
*copy = *padding;
|
|
|
|
return copy;
|
|
}
|
|
|
|
GType
|
|
clutter_padding_get_type (void)
|
|
{
|
|
static GType gtype = 0;
|
|
|
|
if (G_UNLIKELY (gtype == 0))
|
|
gtype = g_boxed_type_register_static (g_intern_static_string ("ClutterPadding"),
|
|
(GBoxedCopyFunc) clutter_padding_copy,
|
|
(GBoxedFreeFunc) clutter_padding_free);
|
|
|
|
return gtype;
|
|
}
|