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/* gnome-bg.h -
Copyright 2007, Red Hat, Inc.
This file is part of the Gnome Library.
The Gnome Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the Gnome Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Author: Soren Sandmann <sandmann@redhat.com>
*/
#ifndef __GNOME_BG_H__
#define __GNOME_BG_H__
#ifndef GNOME_DESKTOP_USE_UNSTABLE_API
#error GnomeBG is unstable API. You must define GNOME_DESKTOP_USE_UNSTABLE_API before including gnome-bg.h
#endif
#include <gdk/gdk.h>
#include <gconf/gconf-client.h>
#include <libgnomeui/gnome-desktop-thumbnail.h>
#include <libgnomeui/gnome-bg-crossfade.h>
G_BEGIN_DECLS
#define GNOME_TYPE_BG (gnome_bg_get_type ())
#define GNOME_BG(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GNOME_TYPE_BG, GnomeBG))
#define GNOME_BG_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GNOME_TYPE_BG, GnomeBGClass))
#define GNOME_IS_BG(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GNOME_TYPE_BG))
#define GNOME_IS_BG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GNOME_TYPE_BG))
#define GNOME_BG_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GNOME_TYPE_BG, GnomeBGClass))
#define GNOME_BG_KEY_DIR "/desktop/gnome/background"
typedef struct _GnomeBG GnomeBG;
typedef struct _GnomeBGClass GnomeBGClass;
typedef enum {
GNOME_BG_COLOR_SOLID,
GNOME_BG_COLOR_H_GRADIENT,
GNOME_BG_COLOR_V_GRADIENT
} GnomeBGColorType;
typedef enum {
GNOME_BG_PLACEMENT_TILED,
GNOME_BG_PLACEMENT_ZOOMED,
GNOME_BG_PLACEMENT_CENTERED,
GNOME_BG_PLACEMENT_SCALED,
GNOME_BG_PLACEMENT_FILL_SCREEN,
GNOME_BG_PLACEMENT_SPANNED
} GnomeBGPlacement;
GType gnome_bg_get_type (void);
GnomeBG * gnome_bg_new (void);
void gnome_bg_load_from_preferences (GnomeBG *bg,
GConfClient *client);
void gnome_bg_save_to_preferences (GnomeBG *bg,
GConfClient *client);
/* Setters */
void gnome_bg_set_filename (GnomeBG *bg,
const char *filename);
void gnome_bg_set_placement (GnomeBG *bg,
GnomeBGPlacement placement);
void gnome_bg_set_color (GnomeBG *bg,
GnomeBGColorType type,
GdkColor *primary,
GdkColor *secondary);
/* Getters */
GnomeBGPlacement gnome_bg_get_placement (GnomeBG *bg);
void gnome_bg_get_color (GnomeBG *bg,
GnomeBGColorType *type,
GdkColor *primary,
GdkColor *secondary);
const gchar * gnome_bg_get_filename (GnomeBG *bg);
/* Drawing and thumbnailing */
void gnome_bg_draw (GnomeBG *bg,
GdkPixbuf *dest,
GdkScreen *screen,
gboolean is_root);
GdkPixmap * gnome_bg_create_pixmap (GnomeBG *bg,
GdkWindow *window,
int width,
int height,
gboolean root);
gboolean gnome_bg_get_image_size (GnomeBG *bg,
GnomeDesktopThumbnailFactory *factory,
int best_width,
int best_height,
int *width,
int *height);
GdkPixbuf * gnome_bg_create_thumbnail (GnomeBG *bg,
GnomeDesktopThumbnailFactory *factory,
GdkScreen *screen,
int dest_width,
int dest_height);
gboolean gnome_bg_is_dark (GnomeBG *bg,
int dest_width,
int dest_height);
gboolean gnome_bg_has_multiple_sizes (GnomeBG *bg);
gboolean gnome_bg_changes_with_time (GnomeBG *bg);
GdkPixbuf * gnome_bg_create_frame_thumbnail (GnomeBG *bg,
GnomeDesktopThumbnailFactory *factory,
GdkScreen *screen,
int dest_width,
int dest_height,
int frame_num);
/* Set a pixmap as root - not a GnomeBG method. At some point
* if we decide to stabilize the API then we may want to make
* these object methods, drop gnome_bg_create_pixmap, etc.
*/
void gnome_bg_set_pixmap_as_root (GdkScreen *screen,
GdkPixmap *pixmap);
GnomeBGCrossfade *gnome_bg_set_pixmap_as_root_with_crossfade (GdkScreen *screen,
GdkPixmap *pixmap);
GdkPixmap *gnome_bg_get_pixmap_from_root (GdkScreen *screen);
G_END_DECLS
#endif
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