[nautilus] Make it possible to have backgrounds spanning multiple monitors.

[Matthias Clasen <matthiasc src gnome org>]

commit 3de6a780cb9dde0c54537139a81ab8186b81ccde
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Feb 18 15:58:50 2010 -0500

    Make it possible to have backgrounds spanning multiple monitors.
    
    gnome-desktop added a new 'spanned' picture_option for this. This fixes
    bug 610396.

 eel/eel-background.c                               |    4 ++++
 eel/eel-background.h                               |    3 ++-
 .../nautilus-directory-background.c                |    3 +++
 3 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/eel/eel-background.c b/eel/eel-background.c
index b4e16eb..d0782d7 100644
--- a/eel/eel-background.c
+++ b/eel/eel-background.c
@@ -262,6 +262,8 @@ placement_gnome_to_eel (GnomeBGPlacement p)
 		return EEL_BACKGROUND_ZOOM;
 	case GNOME_BG_PLACEMENT_TILED:
 		return EEL_BACKGROUND_TILED;
+        case GNOME_BG_PLACEMENT_SPANNED:
+                return EEL_BACKGROUND_SPANNED;
 	}
 
 	return EEL_BACKGROUND_TILED;
@@ -281,6 +283,8 @@ placement_eel_to_gnome (EelBackgroundImagePlacement p)
 		return GNOME_BG_PLACEMENT_ZOOMED;
 	case EEL_BACKGROUND_TILED:
 		return GNOME_BG_PLACEMENT_TILED;
+	case EEL_BACKGROUND_SPANNED:
+		return GNOME_BG_PLACEMENT_SPANNED;
 	}
 
 	return GNOME_BG_PLACEMENT_TILED;
diff --git a/eel/eel-background.h b/eel/eel-background.h
index 147cc5d..7b8d66d 100644
--- a/eel/eel-background.h
+++ b/eel/eel-background.h
@@ -65,7 +65,8 @@ typedef enum {
 	EEL_BACKGROUND_CENTERED,
 	EEL_BACKGROUND_SCALED,
 	EEL_BACKGROUND_SCALED_ASPECT,
-	EEL_BACKGROUND_ZOOM
+	EEL_BACKGROUND_ZOOM,
+	EEL_BACKGROUND_SPANNED
 } EelBackgroundImagePlacement;
 
 GType                       eel_background_get_type                         (void);
diff --git a/libnautilus-private/nautilus-directory-background.c b/libnautilus-private/nautilus-directory-background.c
index 0d7b88e..75d89eb 100644
--- a/libnautilus-private/nautilus-directory-background.c
+++ b/libnautilus-private/nautilus-directory-background.c
@@ -186,6 +186,9 @@ nautilus_file_background_read_desktop_settings (char **color,
                 else if (strcmp (tmp, "zoom") == 0) {
                         *placement = EEL_BACKGROUND_ZOOM;
                 }
+                else if (strcmp (tmp, "spanned") == 0) {
+                        *placement = EEL_BACKGROUND_SPANNED;
+                }
                 else if (strcmp (tmp, "none") == 0) {
                         g_free (*image);