Add ShellOverflowList, a dynamic list with paging
This container class will be used for GenericDisplay.
This commit is contained in:
Colin Walters
parent
8ee740e425
commit
a1908d9db1
@ -63,6 +63,8 @@ libgnome_shell_la_SOURCES = \
|
|||||||
shell-embedded-window-private.h \
|
shell-embedded-window-private.h \
|
||||||
shell-gtk-embed.c \
|
shell-gtk-embed.c \
|
||||||
shell-gtk-embed.h \
|
shell-gtk-embed.h \
|
||||||
|
shell-overflow-list.c \
|
||||||
|
shell-overflow-list.h \
|
||||||
shell-process.c \
|
shell-process.c \
|
||||||
shell-process.h \
|
shell-process.h \
|
||||||
shell-global.c \
|
shell-global.c \
|
||||||
|
|||||||
304
src/shell-overflow-list.c
Normal file
304
src/shell-overflow-list.c
Normal file
@ -0,0 +1,304 @@
|
|||||||
|
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
||||||
|
|
||||||
|
#include "shell-overflow-list.h"
|
||||||
|
|
||||||
|
G_DEFINE_TYPE (ShellOverflowList,
|
||||||
|
shell_overflow_list,
|
||||||
|
CLUTTER_TYPE_GROUP);
|
||||||
|
|
||||||
|
enum {
|
||||||
|
PROP_0,
|
||||||
|
PROP_SPACING,
|
||||||
|
PROP_ITEM_HEIGHT,
|
||||||
|
PROP_PAGE,
|
||||||
|
PROP_N_PAGES
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _ShellOverflowListPrivate {
|
||||||
|
guint item_height;
|
||||||
|
guint spacing;
|
||||||
|
guint page;
|
||||||
|
guint n_pages;
|
||||||
|
guint items_per_page;
|
||||||
|
};
|
||||||
|
|
||||||
|
static void
|
||||||
|
shell_overflow_list_set_property(GObject *object,
|
||||||
|
guint prop_id,
|
||||||
|
const GValue *value,
|
||||||
|
GParamSpec *pspec)
|
||||||
|
{
|
||||||
|
ShellOverflowList *self = SHELL_OVERFLOW_LIST (object);
|
||||||
|
ShellOverflowListPrivate *priv = self->priv;
|
||||||
|
|
||||||
|
switch (prop_id)
|
||||||
|
{
|
||||||
|
case PROP_SPACING:
|
||||||
|
priv->spacing = g_value_get_float (value);
|
||||||
|
clutter_actor_queue_relayout (CLUTTER_ACTOR (self));
|
||||||
|
break;
|
||||||
|
case PROP_ITEM_HEIGHT:
|
||||||
|
priv->item_height = g_value_get_float (value);
|
||||||
|
clutter_actor_queue_relayout (CLUTTER_ACTOR (self));
|
||||||
|
break;
|
||||||
|
case PROP_PAGE:
|
||||||
|
priv->page = g_value_get_uint (value);
|
||||||
|
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
shell_overflow_list_get_property(GObject *object,
|
||||||
|
guint prop_id,
|
||||||
|
GValue *value,
|
||||||
|
GParamSpec *pspec)
|
||||||
|
{
|
||||||
|
ShellOverflowList *self = SHELL_OVERFLOW_LIST (object);
|
||||||
|
ShellOverflowListPrivate *priv = self->priv;
|
||||||
|
|
||||||
|
switch (prop_id)
|
||||||
|
{
|
||||||
|
case PROP_SPACING:
|
||||||
|
g_value_set_float (value, priv->spacing);
|
||||||
|
break;
|
||||||
|
case PROP_ITEM_HEIGHT:
|
||||||
|
g_value_set_float (value, priv->spacing);
|
||||||
|
break;
|
||||||
|
case PROP_PAGE:
|
||||||
|
g_value_set_uint (value, priv->page);
|
||||||
|
break;
|
||||||
|
case PROP_N_PAGES:
|
||||||
|
g_value_set_uint (value, priv->n_pages);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
shell_overflow_list_allocate (ClutterActor *actor,
|
||||||
|
const ClutterActorBox *box,
|
||||||
|
ClutterAllocationFlags flags)
|
||||||
|
{
|
||||||
|
ShellOverflowList *self = SHELL_OVERFLOW_LIST (actor);
|
||||||
|
ShellOverflowListPrivate *priv = self->priv;
|
||||||
|
GList *children, *iter;
|
||||||
|
int n_pages;
|
||||||
|
int n_children;
|
||||||
|
int n_fits;
|
||||||
|
float width;
|
||||||
|
float curheight;
|
||||||
|
float avail_height;
|
||||||
|
gboolean overflow;
|
||||||
|
|
||||||
|
/* chain up to set actor->allocation */
|
||||||
|
(CLUTTER_ACTOR_CLASS (g_type_class_peek (clutter_actor_get_type ())))->allocate (actor, box, flags);
|
||||||
|
|
||||||
|
width = box->x2 - box->x1;
|
||||||
|
curheight = 0;
|
||||||
|
avail_height = box->y2 - box->y1;
|
||||||
|
|
||||||
|
children = clutter_container_get_children (CLUTTER_CONTAINER (self));
|
||||||
|
n_children = g_list_length (children);
|
||||||
|
|
||||||
|
n_fits = 0;
|
||||||
|
n_pages = 1;
|
||||||
|
overflow = FALSE;
|
||||||
|
for (iter = children; iter; iter = iter->next)
|
||||||
|
{
|
||||||
|
ClutterActor *actor = CLUTTER_ACTOR (iter->data);
|
||||||
|
ClutterActorBox child_box;
|
||||||
|
|
||||||
|
if ((curheight + priv->item_height) > avail_height)
|
||||||
|
{
|
||||||
|
overflow = TRUE;
|
||||||
|
curheight = 0;
|
||||||
|
n_pages++;
|
||||||
|
}
|
||||||
|
else if (!overflow)
|
||||||
|
n_fits++;
|
||||||
|
|
||||||
|
child_box.x1 = 0;
|
||||||
|
child_box.x2 = width;
|
||||||
|
child_box.y1 = curheight;
|
||||||
|
child_box.y2 = child_box.y1 + priv->item_height;
|
||||||
|
clutter_actor_allocate (actor, &child_box, flags);
|
||||||
|
|
||||||
|
curheight += priv->item_height;
|
||||||
|
if (iter != children)
|
||||||
|
curheight += priv->spacing;
|
||||||
|
}
|
||||||
|
|
||||||
|
priv->items_per_page = n_fits;
|
||||||
|
if (n_pages != priv->n_pages)
|
||||||
|
{
|
||||||
|
priv->n_pages = n_pages;
|
||||||
|
g_object_notify (G_OBJECT (self), "n-pages");
|
||||||
|
}
|
||||||
|
|
||||||
|
g_list_free (children);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
shell_overflow_list_paint (ClutterActor *actor)
|
||||||
|
{
|
||||||
|
ShellOverflowList *self = SHELL_OVERFLOW_LIST (actor);
|
||||||
|
ShellOverflowListPrivate *priv = self->priv;
|
||||||
|
GList *children, *iter;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
children = clutter_container_get_children (CLUTTER_CONTAINER (self));
|
||||||
|
|
||||||
|
if (children == NULL)
|
||||||
|
return;
|
||||||
|
|
||||||
|
iter = g_list_nth (children, (priv->page) * priv->items_per_page);
|
||||||
|
|
||||||
|
i = 0;
|
||||||
|
for (;iter && i < priv->items_per_page; iter = iter->next, i++)
|
||||||
|
{
|
||||||
|
ClutterActor *actor = CLUTTER_ACTOR (iter->data);
|
||||||
|
|
||||||
|
clutter_actor_paint (actor);
|
||||||
|
}
|
||||||
|
g_list_free (children);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
shell_overflow_list_get_preferred_height (ClutterActor *actor,
|
||||||
|
gfloat for_width,
|
||||||
|
gfloat *min_height_p,
|
||||||
|
gfloat *natural_height_p)
|
||||||
|
{
|
||||||
|
ShellOverflowList *self = SHELL_OVERFLOW_LIST (actor);
|
||||||
|
ShellOverflowListPrivate *priv = self->priv;
|
||||||
|
GList *children;
|
||||||
|
|
||||||
|
if (min_height_p)
|
||||||
|
*min_height_p = 0;
|
||||||
|
|
||||||
|
if (natural_height_p)
|
||||||
|
{
|
||||||
|
int n_children;
|
||||||
|
children = clutter_container_get_children (CLUTTER_CONTAINER (self));
|
||||||
|
n_children = g_list_length (children);
|
||||||
|
if (n_children == 0)
|
||||||
|
*natural_height_p = 0;
|
||||||
|
else
|
||||||
|
*natural_height_p = (n_children - 1) * (priv->item_height + priv->spacing) + priv->item_height;
|
||||||
|
g_list_free (children);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
shell_overflow_list_get_preferred_width (ClutterActor *actor,
|
||||||
|
gfloat for_height,
|
||||||
|
gfloat *min_width_p,
|
||||||
|
gfloat *natural_width_p)
|
||||||
|
{
|
||||||
|
ShellOverflowList *self = SHELL_OVERFLOW_LIST (actor);
|
||||||
|
gboolean first = TRUE;
|
||||||
|
float min = 0, natural = 0;
|
||||||
|
GList *iter;
|
||||||
|
GList *children;
|
||||||
|
|
||||||
|
children = clutter_container_get_children (CLUTTER_CONTAINER (self));
|
||||||
|
|
||||||
|
for (iter = children; iter; iter = iter->next)
|
||||||
|
{
|
||||||
|
ClutterActor *child = iter->data;
|
||||||
|
float child_min, child_natural;
|
||||||
|
|
||||||
|
clutter_actor_get_preferred_width (child,
|
||||||
|
for_height,
|
||||||
|
&child_min,
|
||||||
|
&child_natural);
|
||||||
|
|
||||||
|
if (first)
|
||||||
|
{
|
||||||
|
first = FALSE;
|
||||||
|
min = child_min;
|
||||||
|
natural = child_natural;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
if (child_min > min)
|
||||||
|
min = child_min;
|
||||||
|
|
||||||
|
if (child_natural > natural)
|
||||||
|
natural = child_natural;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (min_width_p)
|
||||||
|
*min_width_p = min;
|
||||||
|
|
||||||
|
if (natural_width_p)
|
||||||
|
*natural_width_p = natural;
|
||||||
|
g_list_free (children);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
shell_overflow_list_class_init (ShellOverflowListClass *klass)
|
||||||
|
{
|
||||||
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
||||||
|
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
|
||||||
|
|
||||||
|
gobject_class->get_property = shell_overflow_list_get_property;
|
||||||
|
gobject_class->set_property = shell_overflow_list_set_property;
|
||||||
|
|
||||||
|
actor_class->get_preferred_width = shell_overflow_list_get_preferred_width;
|
||||||
|
actor_class->get_preferred_height = shell_overflow_list_get_preferred_height;
|
||||||
|
actor_class->allocate = shell_overflow_list_allocate;
|
||||||
|
actor_class->paint = shell_overflow_list_paint;
|
||||||
|
|
||||||
|
g_object_class_install_property (gobject_class,
|
||||||
|
PROP_SPACING,
|
||||||
|
g_param_spec_float ("spacing",
|
||||||
|
"Spacing",
|
||||||
|
"Space between items",
|
||||||
|
0.0, G_MAXFLOAT, 0.0,
|
||||||
|
G_PARAM_READWRITE));
|
||||||
|
|
||||||
|
g_object_class_install_property (gobject_class,
|
||||||
|
PROP_ITEM_HEIGHT,
|
||||||
|
g_param_spec_float ("item-height",
|
||||||
|
"Item height",
|
||||||
|
"Fixed item height value",
|
||||||
|
0.0, G_MAXFLOAT, 0.0,
|
||||||
|
G_PARAM_READWRITE));
|
||||||
|
|
||||||
|
g_object_class_install_property (gobject_class,
|
||||||
|
PROP_PAGE,
|
||||||
|
g_param_spec_uint ("page",
|
||||||
|
"Page number",
|
||||||
|
"Page number",
|
||||||
|
0, G_MAXUINT, 0,
|
||||||
|
G_PARAM_READWRITE));
|
||||||
|
|
||||||
|
g_object_class_install_property (gobject_class,
|
||||||
|
PROP_N_PAGES,
|
||||||
|
g_param_spec_uint ("n-pages",
|
||||||
|
"Number of pages",
|
||||||
|
"Number of pagest",
|
||||||
|
0, G_MAXUINT, 0,
|
||||||
|
G_PARAM_READABLE));
|
||||||
|
|
||||||
|
g_type_class_add_private (gobject_class, sizeof (ShellOverflowListPrivate));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
shell_overflow_list_init (ShellOverflowList *self)
|
||||||
|
{
|
||||||
|
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
|
||||||
|
SHELL_TYPE_OVERFLOW_LIST,
|
||||||
|
ShellOverflowListPrivate);
|
||||||
|
self->priv->n_pages = 1;
|
||||||
|
self->priv->page = 0;
|
||||||
|
}
|
||||||
41
src/shell-overflow-list.h
Normal file
41
src/shell-overflow-list.h
Normal file
@ -0,0 +1,41 @@
|
|||||||
|
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
||||||
|
#ifndef __SHELL_OVERFLOW_LIST_H__
|
||||||
|
#define __SHELL_OVERFLOW_LIST_H__
|
||||||
|
|
||||||
|
#include <glib-object.h>
|
||||||
|
#include <glib.h>
|
||||||
|
|
||||||
|
#include <clutter/clutter.h>
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
typedef struct _ShellOverflowList ShellOverflowList;
|
||||||
|
typedef struct _ShellOverflowListClass ShellOverflowListClass;
|
||||||
|
typedef struct _ShellOverflowListPrivate ShellOverflowListPrivate;
|
||||||
|
|
||||||
|
#define SHELL_TYPE_OVERFLOW_LIST (shell_overflow_list_get_type ())
|
||||||
|
#define SHELL_OVERFLOW_LIST(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), SHELL_TYPE_OVERFLOW_LIST, ShellOverflowList))
|
||||||
|
#define SHELL_OVERFLOW_LIST_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), SHELL_TYPE_OVERFLOW_LIST, ShellOverflowListClass))
|
||||||
|
#define SHELL_IS_OVERFLOW_LIST(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), SHELL_TYPE_OVERFLOW_LIST))
|
||||||
|
#define SHELL_IS_OVERFLOW_LIST_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), SHELL_TYPE_OVERFLOW_LIST))
|
||||||
|
#define SHELL_OVERFLOW_LIST_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SHELL_TYPE_OVERFLOW_LIST, ShellOverflowListClass))
|
||||||
|
|
||||||
|
struct _ShellOverflowList
|
||||||
|
{
|
||||||
|
ClutterGroup parent_instance;
|
||||||
|
|
||||||
|
ShellOverflowListPrivate *priv;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _ShellOverflowListClass
|
||||||
|
{
|
||||||
|
ClutterGroupClass parent_class;
|
||||||
|
|
||||||
|
ShellOverflowListPrivate *priv;
|
||||||
|
};
|
||||||
|
|
||||||
|
GType shell_overflow_list_get_type (void) G_GNUC_CONST;
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __SHELL_OVERFLOW_LIST_H__ */
|
||||||
Loading…
Reference in New Issue
Block a user