580feb0c85
Background handling in GNOME is very roundabout at the moment. gnome-settings-daemon uses gnome-desktop to read the background from disk into a screen-sized pixmap. It then sets the XID of that pixmap on the _XROOTPMAP_ID root window property. mutter puts that pixmap into a texture/actor which gnome-shell then uses. Having the gnome-settings-daemon detour from disk to screen means we can't easily let the compositor handle transition effects when switching backgrounds. Also, having the background actor be per-screen instead of per-monitor means we may have oversized textures in certain multihead setups. This commit changes mutter to read backgrounds from disk itself, and it changes backgrounds to be per-monitor. This way background handling/compositing is left to the compositor. https://bugzilla.gnome.org/show_bug.cgi?id=682427
69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
|
/*
|
|
* meta-background-actor.h: Actor for painting the root window background
|
|
*
|
|
* Copyright 2010 Red Hat, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
|
* 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef META_BACKGROUND_ACTOR_H
|
|
#define META_BACKGROUND_ACTOR_H
|
|
|
|
#include <clutter/clutter.h>
|
|
#include <cogl/cogl.h>
|
|
|
|
#include <meta/gradient.h>
|
|
#include <meta/screen.h>
|
|
|
|
#include <gsettings-desktop-schemas/gdesktop-enums.h>
|
|
|
|
/**
|
|
* MetaBackgroundActor:
|
|
*
|
|
* This class handles tracking and painting the root window background.
|
|
* By integrating with #MetaWindowGroup we can avoid painting parts of
|
|
* the background that are obscured by other windows.
|
|
*/
|
|
|
|
#define META_TYPE_BACKGROUND_ACTOR (meta_background_actor_get_type ())
|
|
#define META_BACKGROUND_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActor))
|
|
#define META_BACKGROUND_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
|
|
#define META_IS_BACKGROUND_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_BACKGROUND_ACTOR))
|
|
#define META_IS_BACKGROUND_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_BACKGROUND_ACTOR))
|
|
#define META_BACKGROUND_ACTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_BACKGROUND_ACTOR, MetaBackgroundActorClass))
|
|
|
|
typedef struct _MetaBackgroundActor MetaBackgroundActor;
|
|
typedef struct _MetaBackgroundActorClass MetaBackgroundActorClass;
|
|
typedef struct _MetaBackgroundActorPrivate MetaBackgroundActorPrivate;
|
|
|
|
struct _MetaBackgroundActorClass
|
|
{
|
|
ClutterActorClass parent_class;
|
|
};
|
|
|
|
struct _MetaBackgroundActor
|
|
{
|
|
ClutterActor parent;
|
|
|
|
MetaBackgroundActorPrivate *priv;
|
|
};
|
|
|
|
GType meta_background_actor_get_type (void);
|
|
|
|
ClutterActor *meta_background_actor_new (void);
|
|
|
|
#endif /* META_BACKGROUND_ACTOR_H */
|