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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
nautilus-theme.c: theme framework with xml-based theme definition files
Copyright (C) 1999, 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.
Author: Andy Hertzfeld <andy@eazel.com>
*/
#include <config.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <parser.h>
#include <xmlmemory.h>
#include <gnome.h>
#include <libgnomevfs/gnome-vfs.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <librsvg/rsvg.h>
#include "nautilus-file.h"
#include "nautilus-file-utilities.h"
#include "nautilus-metadata.h"
#include "nautilus-string.h"
#include "nautilus-xml-extensions.h"
#include "nautilus-global-preferences.h"
#include "nautilus-preferences.h"
#include "nautilus-theme.h"
/* static globals to hold the last accessed theme file */
static char *last_theme_name = NULL;
static xmlDocPtr last_theme_document = NULL;
/* return the current theme by asking the preferences machinery */
char *
nautilus_theme_get_theme(void)
{
return nautilus_preferences_get (NAUTILUS_PREFERENCES_THEME, "default");
}
/* set the current theme */
void
nautilus_theme_set_theme(const char *new_theme)
{
char *old_theme;
old_theme = nautilus_theme_get_theme();
if (nautilus_strcmp (old_theme, new_theme)) {
nautilus_preferences_set (NAUTILUS_PREFERENCES_THEME, new_theme);
}
g_free (old_theme);
}
/* load and parse a theme file */
static xmlDocPtr
load_theme_document (const char * theme_name)
{
xmlDocPtr theme_document;
char *theme_path, *temp_str;
/* formulate the theme path name */
if (strcmp(theme_name, "default") == 0) {
theme_path = nautilus_pixmap_file ("default.xml");
} else {
temp_str = g_strdup_printf("%s/%s.xml", theme_name, theme_name);
theme_path = nautilus_pixmap_file (temp_str);
g_free(temp_str);
}
/* load and parse the theme file */
theme_document = xmlParseFile(theme_path);
g_free(theme_path);
return theme_document;
}
/* fetch data from the current theme. Cache the last theme file as a parsed xml document */
char *
nautilus_theme_get_theme_data(const char *resource_name, const char *property_name)
{
char *theme_name, *temp_str;
char *theme_data;
xmlDocPtr theme_document;
xmlNodePtr resource_node;
/* fetch the current theme name */
theme_data = NULL;
theme_name = nautilus_preferences_get (NAUTILUS_PREFERENCES_THEME, "default");
if (nautilus_strcmp (theme_name, last_theme_name) == 0) {
theme_document = last_theme_document;
} else {
/* release the old saved data, since the theme changed */
if (last_theme_document)
xmlFreeDoc (last_theme_document);
g_free (last_theme_name);
last_theme_name = g_strdup (theme_name);
last_theme_document = load_theme_document (theme_name);
theme_document = last_theme_document;
}
if (theme_document != NULL) {
/* fetch the resource node */
resource_node = nautilus_xml_get_child_by_name(xmlDocGetRootElement (theme_document), resource_name);
if (resource_node) {
temp_str = xmlGetProp(resource_node, property_name);
if (temp_str)
theme_data = g_strdup (temp_str);
}
}
g_free(theme_name);
return theme_data;
}
/* given the current theme, fetch the full path name of an image with the passed-in name */
/* return NULL if there isn't a corresponding image */
char *
nautilus_theme_get_image_path (const char *image_name)
{
char *theme_name, *image_path, *temp_str;
theme_name = nautilus_preferences_get (NAUTILUS_PREFERENCES_THEME, "default");
if (nautilus_strcmp (theme_name, "default") != 0) {
temp_str = g_strdup_printf ("%s/%s", theme_name, image_name);
image_path = nautilus_pixmap_file (temp_str);
g_free (theme_name);
g_free (temp_str);
/* see if a theme-specific image exists; if so, return it */
if (g_file_exists (image_path))
return image_path;
g_free (image_path);
}
/* we couldn't find a theme specific one, so look for a general image */
image_path = nautilus_pixmap_file (image_name);
if (g_file_exists (image_path))
return image_path;
/* we couldn't find anything, so return NULL */
g_free (image_path);
return NULL;
}
/* create a pixbuf that represents the passed in theme name */
/* this is a placeholder until we get Arlo's design */
GdkPixbuf *
nautilus_theme_make_selector (const char *theme_name)
{
char *pixbuf_file, *temp_str ;
GdkPixbuf *pixbuf;
temp_str = g_strdup_printf ("%s/%s", theme_name, "i-directory.png");
pixbuf_file = nautilus_pixmap_file(temp_str);
g_free (temp_str);
if (!g_file_exists (pixbuf_file)) {
g_free (pixbuf_file);
temp_str = g_strdup_printf ("%s/%s", theme_name, "i-directory.svg");
pixbuf_file = nautilus_pixmap_file(temp_str);
g_free (temp_str);
if (!g_file_exists (pixbuf_file)) {
g_free (pixbuf_file);
pixbuf_file = nautilus_pixmap_file ("i-directory.png");
}
}
if (nautilus_str_has_suffix(pixbuf_file, ".svg")) {
FILE *f = fopen (pixbuf_file, "rb");
if (f != NULL) {
pixbuf = rsvg_render_file (f, 1.0);
fclose (f);
}
} else {
pixbuf = gdk_pixbuf_new_from_file (pixbuf_file);
}
g_free (pixbuf_file);
return pixbuf;
}
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