/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */

/*
 * Nautilus
 *
 * Copyright (C) 2000 Eazel, Inc.
 *
 * Nautilus 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
 *
 * Author: Andy Hertzfeld <andy@eazel.com>
 */

/* This is the index title widget, which is the title part of the index panel
 */

#include <config.h>
#include "nautilus-sidebar-title.h"

#include <ctype.h>
#include <string.h>
#include <math.h>
#include <gtk/gtkhbox.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkpixmap.h>
#include <gtk/gtksignal.h>
#include <libgnomevfs/gnome-vfs-types.h>
#include <libgnomevfs/gnome-vfs-uri.h>
#include <libnautilus-extensions/nautilus-background.h>
#include <libnautilus-extensions/nautilus-file-attributes.h>
#include <libnautilus-extensions/nautilus-gdk-extensions.h>
#include <libnautilus-extensions/nautilus-gdk-pixbuf-extensions.h>
#include <libnautilus-extensions/nautilus-glib-extensions.h>
#include <libnautilus-extensions/nautilus-global-preferences.h>
#include <libnautilus-extensions/nautilus-gtk-extensions.h>
#include <libnautilus-extensions/nautilus-gtk-macros.h>
#include <libnautilus-extensions/nautilus-icon-factory.h>
#include <libnautilus-extensions/nautilus-metadata.h>
#include <libnautilus-extensions/nautilus-font-factory.h>
#include <libnautilus-extensions/nautilus-string.h>
#include <libnautilus-extensions/nautilus-theme.h>
#include <libnautilus-extensions/nautilus-label.h>
#include <libnautilus-extensions/nautilus-image.h>

static void nautilus_sidebar_title_initialize_class    (NautilusSidebarTitleClass *klass);
static void nautilus_sidebar_title_destroy             (GtkObject                 *object);
static void nautilus_sidebar_title_initialize          (NautilusSidebarTitle      *pixmap);
static void nautilus_sidebar_title_size_allocate       (GtkWidget                 *widget,
							GtkAllocation             *allocation);
static void nautilus_sidebar_title_theme_changed       (gpointer                   user_data);
static void update_icon                                (NautilusSidebarTitle      *sidebar_title);
static void sidebar_create_smooth_components_if_needed (NautilusSidebarTitle      *sidebar_title);
static void sidebar_create_normal_components_if_needed (NautilusSidebarTitle      *sidebar_title);
static void smooth_graphics_mode_changed_callback         (gpointer                   callback_data);


struct NautilusSidebarTitleDetails {
	NautilusFile		*file;
	guint			file_changed_connection;
	char			*title_text;

	GtkWidget		*icon;

	GtkWidget		*normal_title_label;
	GtkWidget		*normal_more_info_label;

	GtkWidget		*label_box;
	GtkWidget		*more_info_box;

	GtkWidget		*smooth_title_label;
	NautilusScalableFont	*smooth_title_label_font;
	GtkWidget		*smooth_more_info_label;
	NautilusScalableFont	*smooth_more_info_label_font;

	GtkWidget		*emblem_box;
	GtkWidget		*notes;

	int			shadow_offset;
	gboolean		smooth_graphics;
};

NAUTILUS_DEFINE_CLASS_BOILERPLATE (NautilusSidebarTitle, nautilus_sidebar_title, gtk_vbox_get_type ())

static void
nautilus_sidebar_title_initialize_class (NautilusSidebarTitleClass *class)
{
	GtkObjectClass *object_class;
	GtkWidgetClass *widget_class;
	
	object_class = (GtkObjectClass*) class;
	widget_class = (GtkWidgetClass*) class;
	
	object_class->destroy = nautilus_sidebar_title_destroy;
	widget_class->size_allocate = nautilus_sidebar_title_size_allocate;
}

static void
nautilus_sidebar_title_initialize (NautilusSidebarTitle *sidebar_title)
{ 
	GdkFont *font;

	sidebar_title->details = g_new0 (NautilusSidebarTitleDetails, 1);

	/* Register to find out about icon theme changes */
	gtk_signal_connect_object_while_alive (nautilus_icon_factory_get (),
					       "icons_changed",
					       update_icon,
					       GTK_OBJECT (sidebar_title));

	sidebar_title->details->label_box = gtk_vbox_new (FALSE, 0);
	sidebar_title->details->more_info_box = gtk_vbox_new (FALSE, 0);

	sidebar_title->details->icon = nautilus_image_new ();

	gtk_box_pack_start (GTK_BOX (sidebar_title), sidebar_title->details->icon, 0, 0, 0);
	gtk_box_pack_start (GTK_BOX (sidebar_title), sidebar_title->details->label_box, 0, 0, 0);
	gtk_box_pack_start (GTK_BOX (sidebar_title), sidebar_title->details->more_info_box, 0, 0, 3);

	gtk_widget_show (sidebar_title->details->icon);
	gtk_widget_show (sidebar_title->details->label_box);
	gtk_widget_show (sidebar_title->details->more_info_box);

	sidebar_title->details->emblem_box = gtk_hbox_new (FALSE, 0);
	gtk_widget_show (sidebar_title->details->emblem_box);
	gtk_box_pack_start (GTK_BOX (sidebar_title), sidebar_title->details->emblem_box, 0, 0, 0);

	sidebar_title->details->notes = GTK_WIDGET (gtk_label_new (NULL));
	gtk_label_set_line_wrap (GTK_LABEL (sidebar_title->details->notes), TRUE);
	font = nautilus_font_factory_get_font_from_preferences (12);
	nautilus_gtk_widget_set_font (sidebar_title->details->notes, font);
	gdk_font_unref (font);
	gtk_widget_show (sidebar_title->details->notes);
	gtk_box_pack_start (GTK_BOX (sidebar_title), sidebar_title->details->notes, 0, 0, 0);

	/* Keep track of changes in graphics trade offs */
	smooth_graphics_mode_changed_callback (sidebar_title);
	nautilus_preferences_add_callback (NAUTILUS_PREFERENCES_SMOOTH_GRAPHICS_MODE, 
					   smooth_graphics_mode_changed_callback, 
					   sidebar_title);

	/* set up the label colors according to the theme, and get notified of changes */
	nautilus_sidebar_title_theme_changed (sidebar_title);
	nautilus_preferences_add_callback (NAUTILUS_PREFERENCES_THEME, nautilus_sidebar_title_theme_changed, sidebar_title);

}

/* destroy by throwing away private storage */

static void
release_file (NautilusSidebarTitle *sidebar_title)
{
	if (sidebar_title->details->file_changed_connection != 0) {
		gtk_signal_disconnect (GTK_OBJECT (sidebar_title->details->file),
				       sidebar_title->details->file_changed_connection);
		sidebar_title->details->file_changed_connection = 0;
	}

	if (sidebar_title->details->file != NULL) {
		nautilus_file_monitor_remove (sidebar_title->details->file, sidebar_title);
		nautilus_file_unref (sidebar_title->details->file);
		sidebar_title->details->file = NULL;
	}
}

static void
nautilus_sidebar_title_destroy (GtkObject *object)
{
	NautilusSidebarTitle *sidebar_title;

	sidebar_title = NAUTILUS_SIDEBAR_TITLE (object);

	release_file (sidebar_title);
	
	g_free (sidebar_title->details->title_text);
	g_free (sidebar_title->details);

	nautilus_preferences_remove_callback (NAUTILUS_PREFERENCES_THEME, nautilus_sidebar_title_theme_changed, sidebar_title);
	nautilus_preferences_remove_callback (NAUTILUS_PREFERENCES_SMOOTH_GRAPHICS_MODE, smooth_graphics_mode_changed_callback, sidebar_title);
  	
	NAUTILUS_CALL_PARENT_CLASS (GTK_OBJECT_CLASS, destroy, (object));
}

/* return a new index title object */

GtkWidget *
nautilus_sidebar_title_new (void)
{
	return gtk_widget_new (nautilus_sidebar_title_get_type (), NULL);
}

/* utility to set up the style of a widget to have a particular color */
static void
set_widget_color (GtkWidget *widget, const char* color_spec)
{
	GtkStyle *style;
	GdkColor color;
	
	style = gtk_widget_get_style (widget);
	
	/* Make a copy of the style. */
	style = gtk_style_copy (style);

	nautilus_gdk_color_parse_with_white_default (color_spec, &color);
	style->fg[GTK_STATE_NORMAL] = color;
	style->base[GTK_STATE_NORMAL] = color;
	style->fg[GTK_STATE_ACTIVE] = color;
	style->base[GTK_STATE_ACTIVE] = color;
	
	/* Put the style in the widget. */
	gtk_widget_set_style (widget, style);
	gtk_style_unref (style);
}

/* utility that returns true if the title is over a dark background.  We do this by finding the
   sidebar and asking its background */
void
nautilus_sidebar_title_select_text_color (NautilusSidebarTitle *sidebar_title)
{
	GtkWidget *widget, *sidebar;
	NautilusBackground *background;
	char *sidebar_title_color, *sidebar_info_title_color;
	char *sidebar_title_shadow_color;
	
	widget = GTK_WIDGET (sidebar_title);
	sidebar = widget->parent;
	if (sidebar) {
		sidebar = GTK_WIDGET (sidebar)->parent;
		background = nautilus_get_widget_background (sidebar);
		
		/* FIXME bugzilla.eazel.com 2496: for now, both the title and info colors are the same */
		if (nautilus_background_is_dark (background)) {
			sidebar_title_color = g_strdup("rgb:FFFF/FFFF/FFFF");
			sidebar_info_title_color = g_strdup("rgb:FFFF/FFFF/FFFF");
			sidebar_title_shadow_color = g_strdup("rgb:0000/0000/0000");
		
		} else {
			sidebar_title_color = g_strdup("rgb:0000/0000/0000");
			sidebar_info_title_color = g_strdup("rgb:0000/0000/0000");
			sidebar_title_shadow_color = g_strdup("rgb:FFFF/FFFF/FFFF");
		}

		if (sidebar_title->details->smooth_graphics) {
			nautilus_label_set_text_color (NAUTILUS_LABEL (sidebar_title->details->smooth_title_label),
						       nautilus_parse_rgb_with_white_default (sidebar_title_color));
			
			nautilus_label_set_drop_shadow_color (NAUTILUS_LABEL (sidebar_title->details->smooth_title_label),
						       nautilus_parse_rgb_with_white_default (sidebar_title_shadow_color));
			
			nautilus_label_set_drop_shadow_offset (NAUTILUS_LABEL (sidebar_title->details->smooth_title_label)
						       ,sidebar_title->details->shadow_offset);

			nautilus_label_set_text_color (NAUTILUS_LABEL (sidebar_title->details->smooth_more_info_label),
						       nautilus_parse_rgb_with_white_default (sidebar_info_title_color));
			
			nautilus_label_set_drop_shadow_color (NAUTILUS_LABEL (sidebar_title->details->smooth_more_info_label),
						       nautilus_parse_rgb_with_white_default (sidebar_title_shadow_color));
			
			nautilus_label_set_drop_shadow_offset (NAUTILUS_LABEL (sidebar_title->details->smooth_more_info_label)
						       ,sidebar_title->details->shadow_offset);

		}
		else {
			set_widget_color (sidebar_title->details->normal_title_label, sidebar_title_color);
			set_widget_color (sidebar_title->details->normal_more_info_label, sidebar_info_title_color);
		}
	
		g_free (sidebar_title_color);	
		g_free (sidebar_info_title_color);	
		g_free (sidebar_title_shadow_color);
	}
}

/* handle theme changes by setting up the color of the labels */
static void
nautilus_sidebar_title_theme_changed (gpointer user_data)
{
	char *shadow_offset_str;
	NautilusSidebarTitle *sidebar_title;	

	sidebar_title = NAUTILUS_SIDEBAR_TITLE (user_data);		
	
	shadow_offset_str = nautilus_theme_get_theme_data ("sidebar", "SHADOW_OFFSET");
	if (shadow_offset_str) {
		sidebar_title->details->shadow_offset = atoi (shadow_offset_str);	
		g_free (shadow_offset_str);
	} else {
		sidebar_title->details->shadow_offset = 0;	
	}
	
	nautilus_sidebar_title_select_text_color (sidebar_title);
}

/* set up the icon image */
static void
update_icon (NautilusSidebarTitle *sidebar_title)
{
	GdkPixbuf *pixbuf;
	char *uri, *icon_path;
	
	/* FIXME: currently, components can't specify their own sidebar icon.  This
	  needs to be added to the framework, but for now we special-case some
	  important ones here */
	
	uri = NULL;
	icon_path = NULL;
	if (sidebar_title->details->file) {
		uri = nautilus_file_get_uri (sidebar_title->details->file);
	}	
	
	if (nautilus_istr_has_prefix (uri, "eazel:") || nautilus_istr_has_prefix (uri, "eazel-services:")) {
		icon_path = nautilus_theme_get_image_path ("big_services_icon.png");
	} else if (nautilus_istr_has_prefix (uri, "man:")) {
		icon_path = nautilus_theme_get_image_path ("manual.png");
	}
	
	if (icon_path != NULL) {
		pixbuf = gdk_pixbuf_new_from_file (icon_path);
	} else if (nautilus_icon_factory_is_icon_ready_for_file (sidebar_title->details->file)) {
		pixbuf = nautilus_icon_factory_get_pixbuf_for_file (sidebar_title->details->file,
								    "accept",
								    NAUTILUS_ICON_SIZE_LARGE,
								    TRUE);
	} else {
		pixbuf = NULL;
	}

	g_free (uri);	
	g_free (icon_path);
	
	nautilus_image_set_pixbuf (NAUTILUS_IMAGE (sidebar_title->details->icon), pixbuf);
	
	if (pixbuf == NULL) {
		gtk_widget_hide (sidebar_title->details->icon);
	} else {
		gdk_pixbuf_unref (pixbuf);
		gtk_widget_show (sidebar_title->details->icon);
	}
}

static void
update_font (NautilusSidebarTitle *sidebar_title)
{
	if (sidebar_title->details->smooth_graphics) {
		guint largest_size;
		
		const guint font_sizes[4] = { 20, 18, 14, 12 };
		
		largest_size = nautilus_scalable_font_largest_fitting_font_size (sidebar_title->details->smooth_title_label_font,
										 sidebar_title->details->title_text,
										 GTK_WIDGET (sidebar_title)->allocation.width - 4,
										 font_sizes,
										 NAUTILUS_N_ELEMENTS (font_sizes));
		
		nautilus_label_set_font_size (NAUTILUS_LABEL (sidebar_title->details->smooth_title_label), largest_size);
	}
	else {
		GdkFont *label_font;
		
		/* FIXME bugzilla.eazel.com 1103: Make this use the font
		 * factory and be failsafe if the given font is not found.
		 */
		
		/* leave 4 pixels of slop so the text doesn't go right up to the edge */
		label_font = nautilus_get_largest_fitting_font
			(sidebar_title->details->title_text,
			 GTK_WIDGET (sidebar_title)->allocation.width - 4,
			 "-adobe-helvetica-bold-r-normal-*-%d-*-*-*-*-*-*-*");

		if (label_font == NULL) {
			label_font = nautilus_font_factory_get_fallback_font ();
		}
		
		nautilus_gtk_widget_set_font (sidebar_title->details->normal_title_label, label_font);
		gdk_font_unref (label_font);
	}
}

/* set up the filename label */
static void
update_title (NautilusSidebarTitle *sidebar_title)
{
	/* FIXME bugzilla.eazel.com 2500: We could defer showing the title until the icon is ready. */

	if (sidebar_title->details->smooth_graphics) {
		nautilus_label_set_text (NAUTILUS_LABEL (sidebar_title->details->smooth_title_label),
					 sidebar_title->details->title_text);
	}
	else {
		gtk_label_set_text (GTK_LABEL (sidebar_title->details->normal_title_label),
				    sidebar_title->details->title_text);
	}

	update_font (sidebar_title);
}

static void
append_and_eat (GString *string, const char *separator, char *new_string)
{
	if (new_string == NULL) {
		return;
	}
	if (separator != NULL) {
		g_string_append (string, separator);
	}
	g_string_append (string, new_string);
	g_free (new_string);
}

static void
update_more_info (NautilusSidebarTitle *sidebar_title)
{
	NautilusFile *file;
	GString *info_string;
	char *type_string;

	file = sidebar_title->details->file;
	
	/* FIXME bugzilla.eazel.com 2500: We could defer showing info until the icon is ready. */

	info_string = g_string_new (NULL);
	type_string = nautilus_file_get_string_attribute (file, "type");
	if (type_string != NULL) {
		append_and_eat (info_string, NULL, type_string);
		append_and_eat (info_string, ", ",
				nautilus_file_get_string_attribute (file, "size"));
	} else {
		append_and_eat (info_string, NULL,
				nautilus_file_get_string_attribute (file, "size"));
	}
	append_and_eat (info_string, "\n",
			nautilus_file_get_string_attribute (file, "date_modified"));
	g_string_append_c (info_string, '\0');

	if (sidebar_title->details->smooth_graphics) {
		nautilus_label_set_text (NAUTILUS_LABEL (sidebar_title->details->smooth_more_info_label),
					 info_string->str);
	}
	else {
		gtk_label_set_text (GTK_LABEL (sidebar_title->details->normal_more_info_label), info_string->str);
	}


	g_string_free (info_string, TRUE);
}

/* add a pixbuf to the emblem box */
static void
add_emblem (NautilusSidebarTitle *sidebar_title, GdkPixbuf *pixbuf)
{
	GtkWidget *image_widget;

	image_widget = nautilus_image_new ();
	nautilus_image_set_pixbuf (NAUTILUS_IMAGE (image_widget), pixbuf);	
  	gtk_widget_show (image_widget);
	gtk_container_add (GTK_CONTAINER (sidebar_title->details->emblem_box), image_widget);	
}

static void
update_emblems (NautilusSidebarTitle *sidebar_title)
{
	GList *icons, *p;
	GdkPixbuf *pixbuf;

	/* FIXME bugzilla.eazel.com 2500: We could defer showing emblems until the icon is ready. */

	/* First, deallocate any existing ones */
	gtk_container_foreach (GTK_CONTAINER (sidebar_title->details->emblem_box),
			       (GtkCallback) gtk_widget_destroy,
			       NULL);

	/* fetch the emblem icons from metadata */
	icons = nautilus_icon_factory_get_emblem_icons_for_file (sidebar_title->details->file, FALSE, NULL);

	/* loop through the list of emblems, installing them in the box */
	for (p = icons; p != NULL; p = p->next) {
		pixbuf = nautilus_icon_factory_get_pixbuf_for_icon
			(p->data,
			 NAUTILUS_ICON_SIZE_STANDARD, NAUTILUS_ICON_SIZE_STANDARD,
			 NAUTILUS_ICON_SIZE_STANDARD, NAUTILUS_ICON_SIZE_STANDARD,
			 NULL);
		if (pixbuf != NULL) {
			add_emblem (sidebar_title, pixbuf);
			gdk_pixbuf_unref (pixbuf);
		}
	}
	
	nautilus_scalable_icon_list_free (icons);
}

static void
update_notes (NautilusSidebarTitle *sidebar_title)
{
	char *text;
	
	/* FIXME bugzilla.eazel.com 2500: We could defer showing notes until the icon is ready. */

	text = nautilus_file_get_metadata (sidebar_title->details->file,
					   NAUTILUS_METADATA_KEY_NOTES,
					   NULL);
	gtk_label_set_text (GTK_LABEL (sidebar_title->details->notes), text);
	g_free (text);
}

/* return the filename text */
char *
nautilus_sidebar_title_get_text (NautilusSidebarTitle *sidebar_title)
{
	return g_strdup (sidebar_title->details->title_text);
}

/* set up the filename text */
void
nautilus_sidebar_title_set_text (NautilusSidebarTitle *sidebar_title,
				 const char* new_text)
{
	g_free (sidebar_title->details->title_text);
	sidebar_title->details->title_text = g_strdup (new_text);

	/* Recompute the displayed text. */
	update_title (sidebar_title);
}

static void
update_all (NautilusSidebarTitle *sidebar_title)
{
	update_icon (sidebar_title);
	
	update_title (sidebar_title);
	update_more_info (sidebar_title);
	nautilus_sidebar_title_select_text_color (sidebar_title);
	
	update_emblems (sidebar_title);
	update_notes (sidebar_title);
}

void
nautilus_sidebar_title_set_file (NautilusSidebarTitle *sidebar_title,
				 NautilusFile *file,
				 const char *initial_text)
{
	GList *attributes;

	if (file != sidebar_title->details->file) {
		release_file (sidebar_title);
		sidebar_title->details->file = file;
		nautilus_file_ref (sidebar_title->details->file);
	
		/* attach file */
		if (file != NULL) {
			sidebar_title->details->file_changed_connection =
				gtk_signal_connect_object (GTK_OBJECT (sidebar_title->details->file),
							   "changed",
							   update_all,
							   GTK_OBJECT (sidebar_title));
			
			/* Monitor the things needed to get the right
			 * icon. Also monitor a directory's item count because
			 * the "size" attribute is based on that.
			 */
			attributes = nautilus_icon_factory_get_required_file_attributes ();		
			attributes = g_list_prepend (attributes,
						     NAUTILUS_FILE_ATTRIBUTE_DIRECTORY_ITEM_COUNT);
			attributes = g_list_prepend (attributes,
						     NAUTILUS_FILE_ATTRIBUTE_METADATA);

			nautilus_file_monitor_add (sidebar_title->details->file, sidebar_title,
						   attributes);
			g_list_free (attributes);
		}
	}

	g_free (sidebar_title->details->title_text);
	sidebar_title->details->title_text = g_strdup (initial_text);

	update_all (sidebar_title);
}

static void
nautilus_sidebar_title_size_allocate (GtkWidget *widget,
				      GtkAllocation *allocation)
{
	NAUTILUS_CALL_PARENT_CLASS (GTK_WIDGET_CLASS, size_allocate, (widget, allocation));
	
	/* Need to update the font if the width changes. */
	update_font (NAUTILUS_SIDEBAR_TITLE (widget));
}

gboolean
nautilus_sidebar_title_hit_test_icon (NautilusSidebarTitle *sidebar_title, int x, int y)
{
	g_return_val_if_fail (NAUTILUS_IS_SIDEBAR_TITLE (sidebar_title), FALSE);

	return nautilus_point_in_widget (sidebar_title->details->icon, x, y);
}

static void
sidebar_create_smooth_components_if_needed (NautilusSidebarTitle *sidebar_title)
{ 
	g_return_if_fail (NAUTILUS_IS_SIDEBAR_TITLE (sidebar_title));
	g_return_if_fail (sidebar_title->details->label_box != NULL);
	g_return_if_fail (sidebar_title->details->more_info_box != NULL);

	/* Label */
	if (sidebar_title->details->smooth_title_label == NULL) {
		sidebar_title->details->smooth_title_label = nautilus_label_new ("");
		
		sidebar_title->details->smooth_title_label_font = 
			NAUTILUS_SCALABLE_FONT (nautilus_scalable_font_new ("helvetica", "bold", NULL, NULL));
		
		nautilus_label_set_font (NAUTILUS_LABEL (sidebar_title->details->smooth_title_label),
					 sidebar_title->details->smooth_title_label_font);
		
		gtk_box_pack_start (GTK_BOX (sidebar_title->details->label_box), sidebar_title->details->smooth_title_label, 0, 0, 0);
	}

	/* More info */
	if (sidebar_title->details->smooth_more_info_label == NULL) {
		sidebar_title->details->smooth_more_info_label = nautilus_label_new ("");
		
		sidebar_title->details->smooth_more_info_label_font = 
			NAUTILUS_SCALABLE_FONT (nautilus_scalable_font_new ("helvetica", "medium", NULL, NULL));
		
		nautilus_label_set_font (NAUTILUS_LABEL (sidebar_title->details->smooth_more_info_label),
					 sidebar_title->details->smooth_more_info_label_font);
		
		nautilus_label_set_font_size (NAUTILUS_LABEL (sidebar_title->details->smooth_more_info_label), 12);

		gtk_box_pack_start (GTK_BOX (sidebar_title->details->more_info_box), sidebar_title->details->smooth_more_info_label, 0, 0, 0);
	}
}

static void
sidebar_create_normal_components_if_needed (NautilusSidebarTitle *sidebar_title)
{ 
	g_return_if_fail (NAUTILUS_IS_SIDEBAR_TITLE (sidebar_title));
	g_return_if_fail (sidebar_title->details->label_box != NULL);
	g_return_if_fail (sidebar_title->details->more_info_box != NULL);

	/* Label */
	if (sidebar_title->details->normal_title_label == NULL) {
		sidebar_title->details->normal_title_label = GTK_WIDGET (gtk_label_new (NULL));
		gtk_label_set_line_wrap (GTK_LABEL (sidebar_title->details->normal_title_label), TRUE);
		
		gtk_box_pack_start (GTK_BOX (sidebar_title->details->label_box), sidebar_title->details->normal_title_label, 0, 0, 0);
	}

	/* More info */
	if (sidebar_title->details->normal_more_info_label == NULL) {
		GdkFont *font;

		sidebar_title->details->normal_more_info_label = GTK_WIDGET (gtk_label_new (NULL));
		font = nautilus_font_factory_get_font_from_preferences (12);
		nautilus_gtk_widget_set_font (sidebar_title->details->normal_more_info_label, font);
		gdk_font_unref (font);
		gtk_box_pack_start (GTK_BOX (sidebar_title->details->more_info_box), sidebar_title->details->normal_more_info_label, 0, 0, 0);
	}
}

static void
smooth_graphics_mode_changed_callback (gpointer callback_data)
{
	NautilusSidebarTitle *sidebar_title;

	g_return_if_fail (NAUTILUS_IS_SIDEBAR_TITLE (callback_data));

	sidebar_title = NAUTILUS_SIDEBAR_TITLE (callback_data);

	sidebar_title->details->smooth_graphics = nautilus_preferences_get_boolean (NAUTILUS_PREFERENCES_SMOOTH_GRAPHICS_MODE,
										    TRUE);

	if (sidebar_title->details->smooth_graphics) {
		sidebar_create_smooth_components_if_needed (sidebar_title);
	}
	else {
		sidebar_create_normal_components_if_needed (sidebar_title);
	}

	if (sidebar_title->details->smooth_graphics) {
		nautilus_image_set_alpha_mode (NAUTILUS_IMAGE (sidebar_title->details->icon), NAUTILUS_IMAGE_FULL_ALPHA);

		if (sidebar_title->details->normal_title_label != NULL) {
			gtk_widget_hide (sidebar_title->details->normal_title_label);
		}

		if (sidebar_title->details->normal_more_info_label != NULL) {
			gtk_widget_hide (sidebar_title->details->normal_more_info_label);
		}

		g_assert (GTK_IS_WIDGET (sidebar_title->details->smooth_title_label));
		gtk_widget_show (sidebar_title->details->smooth_title_label);

		g_assert (GTK_IS_WIDGET (sidebar_title->details->smooth_more_info_label));
		gtk_widget_show (sidebar_title->details->smooth_more_info_label);
	}
	else {
		nautilus_image_set_alpha_mode (NAUTILUS_IMAGE (sidebar_title->details->icon), NAUTILUS_IMAGE_THRESHOLD_ALPHA);

		if (sidebar_title->details->smooth_title_label != NULL) {
			gtk_widget_hide (sidebar_title->details->smooth_title_label);
		}

		if (sidebar_title->details->smooth_more_info_label != NULL) {
			gtk_widget_hide (sidebar_title->details->smooth_more_info_label);
		}

		g_assert (GTK_IS_WIDGET (sidebar_title->details->normal_title_label));
		gtk_widget_show (sidebar_title->details->normal_title_label);

		g_assert (GTK_IS_WIDGET (sidebar_title->details->normal_more_info_label));
		gtk_widget_show (sidebar_title->details->normal_more_info_label);
	}

	update_all (sidebar_title);
}