mutter/clutter/clutter-hbox.c

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#include "config.h"
#include "clutter-hbox.h"
#include "clutter-box.h"
#include "clutter-container.h"
#include "clutter-layout.h"
#include "clutter-debug.h"
#include "clutter-units.h"
#include "clutter-enum-types.h"
#include "clutter-main.h"
#include "clutter-private.h"
/**
* SECTION:clutter-hbox
* @short_description: Simple horizontal box
*
* FIXME
*
* #ClutterHBox is available since Clutter 0.4.
*/
enum
{
PROP_0,
PROP_LAYOUT_FLAGS
};
static void clutter_layout_iface_init (ClutterLayoutIface *iface);
G_DEFINE_TYPE_WITH_CODE (ClutterHBox,
clutter_hbox,
CLUTTER_TYPE_BOX,
G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_LAYOUT,
clutter_layout_iface_init));
static void
clutter_hbox_query_coords (ClutterActor *actor,
ClutterActorBox *coords)
{
ClutterBox *box = CLUTTER_BOX (actor);
ClutterMargin box_margin;
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GList *l;
gint width, height;
if (box->allocation.x2 != -1 && box->allocation.y2 != -1)
{
coords->x2 = box->allocation.x2;
coords->y2 = box->allocation.y2;
return;
}
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clutter_box_get_margin (box, &box_margin);
width = CLUTTER_UNITS_TO_INT (box_margin.left);
height = CLUTTER_UNITS_TO_INT (box_margin.top);
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for (l = box->children; l; l = l->next)
{
ClutterBoxChild *child = l->data;
if (CLUTTER_ACTOR_IS_VISIBLE (child->actor))
{
guint child_width, child_height;
clutter_actor_get_size (child->actor, &child_width, &child_height);
width = width
+ CLUTTER_UNITS_TO_INT (child->padding.left)
+ child_width
+ CLUTTER_UNITS_TO_INT (child->padding.right);
height = MAX ((child_height
+ CLUTTER_UNITS_TO_INT (child->padding.top)
+ CLUTTER_UNITS_TO_INT (child->padding.bottom)),
height);
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}
}
width += CLUTTER_UNITS_TO_INT (box_margin.right);
height += CLUTTER_UNITS_TO_INT (box_margin.bottom);
box->allocation.x2 = coords->x2 =
coords->x1 + CLUTTER_UNITS_FROM_INT (width);
box->allocation.y2 = coords->y2 =
coords->y1 + CLUTTER_UNITS_FROM_INT (height);
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}
static void
clutter_hbox_request_coords (ClutterActor *actor,
ClutterActorBox *coords)
{
ClutterBox *box = CLUTTER_BOX (actor);
/* we reset the allocation here */
box->allocation.x1 = coords->x1;
box->allocation.y1 = coords->y1;
box->allocation.x2 = -1;
box->allocation.y2 = -1;
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}
static void
clutter_hbox_pack_child (ClutterBox *box,
ClutterBoxChild *child)
{
ClutterGeometry box_geom, child_geom;
ClutterMargin box_margin;
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/* reset the saved allocation */
box->allocation.x2 = box->allocation.y2 = -1;
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clutter_actor_get_geometry (CLUTTER_ACTOR (box), &box_geom);
clutter_actor_get_geometry (child->actor, &child_geom);
clutter_box_get_margin (box, &box_margin);
if (child->pack_type == CLUTTER_PACK_START)
{
child_geom.x = box_geom.width
+ CLUTTER_UNITS_TO_INT (child->padding.right);
child_geom.y = CLUTTER_UNITS_TO_INT (child->padding.top);
}
else if (child->pack_type == CLUTTER_PACK_END)
{
child_geom.x = box_geom.width - child_geom.width
- CLUTTER_UNITS_TO_INT (child->padding.right);
child_geom.y = CLUTTER_UNITS_TO_INT (child->padding.top);
}
child->child_coords.x1 = CLUTTER_UNITS_FROM_INT (child_geom.x);
child->child_coords.y1 = CLUTTER_UNITS_FROM_INT (child_geom.y);
child->child_coords.x2 = CLUTTER_UNITS_FROM_INT (child_geom.x)
+ CLUTTER_UNITS_FROM_INT (child_geom.width);
child->child_coords.y2 = CLUTTER_UNITS_FROM_INT (child_geom.y)
+ CLUTTER_UNITS_FROM_INT (child_geom.height);
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clutter_actor_set_geometry (child->actor, &child_geom);
}
static void
clutter_hbox_unpack_child (ClutterBox *box,
ClutterBoxChild *child)
{
/* no need to do anything */
}
static ClutterLayoutFlags
clutter_hbox_get_layout_flags (ClutterLayout *layout)
{
return CLUTTER_LAYOUT_HEIGHT_FOR_WIDTH;
}
static void
clutter_hbox_height_for_width (ClutterLayout *layout,
gint width,
gint *height)
{
}
static void
clutter_hbox_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
switch (prop_id)
{
case PROP_LAYOUT_FLAGS:
g_value_set_enum (value, CLUTTER_LAYOUT_HEIGHT_FOR_WIDTH);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec);
break;
}
}
static void
clutter_layout_iface_init (ClutterLayoutIface *iface)
{
iface->get_layout_flags = clutter_hbox_get_layout_flags;
iface->height_for_width = clutter_hbox_height_for_width;
}
static void
clutter_hbox_class_init (ClutterHBoxClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
ClutterBoxClass *box_class = CLUTTER_BOX_CLASS (klass);
gobject_class->get_property = clutter_hbox_get_property;
actor_class->query_coords = clutter_hbox_query_coords;
actor_class->request_coords = clutter_hbox_request_coords;
box_class->pack_child = clutter_hbox_pack_child;
box_class->unpack_child = clutter_hbox_unpack_child;
g_object_class_override_property (gobject_class,
PROP_LAYOUT_FLAGS,
"layout-flags");
}
static void
clutter_hbox_init (ClutterHBox *box)
{
}
/**
* clutter_hbox_new:
*
* Creates a new horizontal layout box.
*
* Return value: the newly created #ClutterHBox
*
* Since: 0.4
*/
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ClutterActor *
clutter_hbox_new (void)
{
return g_object_new (CLUTTER_TYPE_HBOX, NULL);
}