Added NautilusBackground class, string functions that allow NULL, made

gradient functions allow NULL and treat it as an empty string, added
gdk_color_parse variants that have a default color, cleanup of
NautilusIndexPanel, and some other minor stuff.

1 files changed, 95 insertions, 0 deletions

diff --git a/libnautilus-private/nautilus-background.h b/libnautilus-private/nautilus-background.h
new file mode 100644
index 000000000..e95a359b1
--- /dev/null
+++ b/libnautilus-private/nautilus-background.h
@@ -0,0 +1,95 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
+
+   nautilus-background.h: Object for the background of a widget.
+
+   Copyright (C) 2000 Eazel, 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.
+  
+   Authors: Darin Adler <darin@eazel.com>
+*/
+
+#ifndef NAUTILUS_BACKGROUND_H
+#define NAUTILUS_BACKGROUND_H
+
+/* Windows for Nautilus can contain backgrounds that are either tiled
+   with an image, a solid color, or a color gradient. This class manages
+   the process of loading the image if necessary and parsing the string
+   that specifies either a color or color gradient.
+
+   The color or gradient is always present, even if there's a tiled image
+   on top of it. This is used when the tiled image can't be loaded for
+   some reason (or just has not been loaded yet).
+*/
+
+#include <gdk/gdktypes.h>
+#include <libgnomeui/gnome-canvas.h>
+
+typedef struct _NautilusBackground NautilusBackground;
+typedef struct _NautilusBackgroundClass NautilusBackgroundClass;
+
+#define NAUTILUS_TYPE_BACKGROUND \
+	(nautilus_background_get_type ())
+#define NAUTILUS_BACKGROUND(obj) \
+	(GTK_CHECK_CAST ((obj), NAUTILUS_TYPE_BACKGROUND, NautilusBackground))
+#define NAUTILUS_BACKGROUND_CLASS(klass) \
+	(GTK_CHECK_CLASS_CAST ((klass), NAUTILUS_TYPE_BACKGROUND, NautilusBackgroundClass))
+#define NAUTILUS_IS_BACKGROUND(obj) \
+	(GTK_CHECK_TYPE ((obj), NAUTILUS_TYPE_BACKGROUND))
+#define NAUTILUS_IS_BACKGROUND_CLASS(klass) \
+	(GTK_CHECK_CLASS_TYPE ((klass), NAUTILUS_TYPE_BACKGROUND))
+
+GtkType             nautilus_background_get_type           (void);
+NautilusBackground *nautilus_background_new                (void);
+
+void                nautilus_background_set_color          (NautilusBackground *background,
+							    const char         *color_or_gradient);
+void                nautilus_background_set_tile_image_uri (NautilusBackground *background,
+							    const char         *image_uri);
+
+char *              nautilus_background_get_color          (NautilusBackground *background);
+char *              nautilus_background_get_tile_image_uri (NautilusBackground *background);
+
+void                nautilus_background_draw               (NautilusBackground *background,
+							    GdkDrawable        *drawable,
+							    GdkGC              *gc,
+							    GdkColormap        *colormap,
+							    const GdkRectangle *rectangle);
+
+void                nautilus_background_attach_to_canvas   (NautilusBackground *background,
+							    GnomeCanvas        *canvas);
+
+
+typedef struct _NautilusBackgroundDetails NautilusBackgroundDetails;
+
+struct _NautilusBackground
+{
+	GtkObject object;
+	NautilusBackgroundDetails *details;
+};
+
+struct _NautilusBackgroundClass
+{
+	GtkObjectClass parent_class;
+
+	/* This signal is emitted when the background image is
+	   finished loading.  This allows a window to draw with a
+	   color background if the image takes a lot time to load.
+	*/
+	void (* changed) (NautilusBackground *);
+};
+
+#endif /* NAUTILUS_BACKGROUND_H */