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|
/* -*- 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.
*
* Nautilus 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: Rebecca Schulman <rebecka@eazel.com>
*/
/* nautilus-customization-data.c - functions to collect and load customization
names and imges */
#include <config.h>
#include "nautilus-customization-data.h"
#include "nautilus-file-utilities.h"
#include <eel/eel-gdk-extensions.h>
#include <eel/eel-gdk-extensions.h>
#include <eel/eel-pango-extensions.h>
#include <eel/eel-gdk-pixbuf-extensions.h>
#include <eel/eel-glib-extensions.h>
#include <eel/eel-gtk-extensions.h>
#include <eel/eel-string.h>
#include <eel/eel-xml-extensions.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <glib.h>
#include <gtk/gtk.h>
#include <librsvg/rsvg.h>
#include <libgnome/gnome-i18n.h>
#include <libgnome/gnome-util.h>
#include <libgnomevfs/gnome-vfs-directory.h>
#include <libgnomevfs/gnome-vfs-utils.h>
#include <libxml/parser.h>
#include <stdlib.h>
#include <string.h>
typedef enum {
READ_PUBLIC_CUSTOMIZATIONS,
READ_PRIVATE_CUSTOMIZATIONS
} CustomizationReadingMode;
struct NautilusCustomizationData {
char *customization_name;
CustomizationReadingMode reading_mode;
GList *public_file_list;
GList *private_file_list;
GList *current_file_list;
GHashTable *name_map_hash;
GdkPixbuf *pattern_frame;
gboolean private_data_was_displayed;
gboolean data_is_for_a_menu;
int maximum_icon_height;
int maximum_icon_width;
};
/* The Property here should be one of "emblems", "colors" or "patterns" */
static char * get_global_customization_uri (const char *customization_name);
static char * get_private_customization_uri (const char *customization_name);
static char * get_file_path_for_mode (const NautilusCustomizationData *data,
const char *file_name);
static char* format_name_for_display (NautilusCustomizationData *data, const char *name);
static char* strip_extension (const char* string_to_strip);
static void load_name_map_hash_table (NautilusCustomizationData *data);
NautilusCustomizationData*
nautilus_customization_data_new (const char *customization_name,
gboolean show_public_customizations,
gboolean data_is_for_a_menu,
int maximum_icon_height,
int maximum_icon_width)
{
NautilusCustomizationData *data;
char *public_directory_uri, *private_directory_uri;
char *temp_str;
GnomeVFSResult public_result, private_result;
data = g_new0 (NautilusCustomizationData, 1);
public_result = GNOME_VFS_OK;
if (show_public_customizations) {
public_directory_uri = get_global_customization_uri (customization_name);
public_result = gnome_vfs_directory_list_load (&data->public_file_list,
public_directory_uri,
GNOME_VFS_FILE_INFO_GET_MIME_TYPE
| GNOME_VFS_FILE_INFO_FOLLOW_LINKS);
g_free (public_directory_uri);
}
private_directory_uri = get_private_customization_uri (customization_name);
private_result = gnome_vfs_directory_list_load (&data->private_file_list,
private_directory_uri,
GNOME_VFS_FILE_INFO_GET_MIME_TYPE
| GNOME_VFS_FILE_INFO_FOLLOW_LINKS);
g_free (private_directory_uri);
if (public_result != GNOME_VFS_OK &&
private_result != GNOME_VFS_OK) {
g_warning ("Couldn't read any of the emblem directories\n");
g_free (data);
return NULL;
}
if (private_result == GNOME_VFS_OK) {
data->reading_mode = READ_PRIVATE_CUSTOMIZATIONS;
data->current_file_list = data->private_file_list;
}
if (show_public_customizations && public_result == GNOME_VFS_OK) {
data->reading_mode = READ_PUBLIC_CUSTOMIZATIONS;
data->current_file_list = data->public_file_list;
}
/* load the frame if necessary */
if (strcmp (customization_name, "patterns") == 0) {
temp_str = nautilus_pixmap_file ("chit_frame.png");
data->pattern_frame = gdk_pixbuf_new_from_file (temp_str, NULL);
g_free (temp_str);
} else {
data->pattern_frame = NULL;
}
data->private_data_was_displayed = FALSE;
data->data_is_for_a_menu = data_is_for_a_menu;
data->customization_name = g_strdup (customization_name);
data->maximum_icon_height = maximum_icon_height;
data->maximum_icon_width = maximum_icon_width;
load_name_map_hash_table (data);
return data;
}
GnomeVFSResult
nautilus_customization_data_get_next_element_for_display (NautilusCustomizationData *data,
char **emblem_name,
GdkPixbuf **pixbuf_out,
char **label_out)
{
GnomeVFSFileInfo *current_file_info;
char *image_file_name, *filtered_name;
GdkPixbuf *pixbuf;
GdkPixbuf *orig_pixbuf;
gboolean is_reset_image;
g_return_val_if_fail (data != NULL, GNOME_VFS_ERROR_BAD_PARAMETERS);
g_return_val_if_fail (emblem_name != NULL, GNOME_VFS_ERROR_BAD_PARAMETERS);
g_return_val_if_fail (pixbuf_out != NULL, GNOME_VFS_ERROR_BAD_PARAMETERS);
g_return_val_if_fail (label_out != NULL, GNOME_VFS_ERROR_BAD_PARAMETERS);
if (data->current_file_list == NULL) {
if (data->reading_mode == READ_PUBLIC_CUSTOMIZATIONS) {
if (data->private_file_list == NULL) {
return GNOME_VFS_ERROR_EOF;
}
data->reading_mode = READ_PRIVATE_CUSTOMIZATIONS;
data->current_file_list = data->private_file_list;
return nautilus_customization_data_get_next_element_for_display (data,
emblem_name,
pixbuf_out,
label_out);
}
else {
return GNOME_VFS_ERROR_EOF;
}
}
current_file_info = data->current_file_list->data;
data->current_file_list = data->current_file_list->next;
g_assert (current_file_info != NULL);
if (!eel_istr_has_prefix (current_file_info->mime_type, "image/")
|| eel_istr_has_prefix (current_file_info->name, ".")) {
return nautilus_customization_data_get_next_element_for_display (data,
emblem_name,
pixbuf_out,
label_out);
}
image_file_name = get_file_path_for_mode (data,
current_file_info->name);
orig_pixbuf = gdk_pixbuf_new_from_file (image_file_name, NULL);
if (orig_pixbuf == NULL) {
orig_pixbuf = rsvg_pixbuf_from_file_at_max_size (image_file_name,
data->maximum_icon_width,
data->maximum_icon_height,
NULL);
}
g_free (image_file_name);
if (orig_pixbuf == NULL) {
return nautilus_customization_data_get_next_element_for_display (data,
emblem_name,
pixbuf_out,
label_out);
}
is_reset_image = eel_strcmp(current_file_info->name, RESET_IMAGE_NAME) == 0;
*emblem_name = g_strdup (current_file_info->name);
if (strcmp (data->customization_name, "patterns") == 0) {
pixbuf = nautilus_customization_make_pattern_chit (orig_pixbuf, data->pattern_frame, FALSE, is_reset_image);
} else {
pixbuf = eel_gdk_pixbuf_scale_down_to_fit (orig_pixbuf,
data->maximum_icon_width,
data->maximum_icon_height);
g_object_unref (orig_pixbuf);
}
*pixbuf_out = pixbuf;
filtered_name = format_name_for_display (data, current_file_info->name);
/* If the data is for a menu,
we want to truncate it and not use the nautilus
label because anti-aliased text doesn't look right
in menus */
if (data->data_is_for_a_menu) {
*label_out = eel_truncate_text_for_menu_item (filtered_name);
}
else {
*label_out = g_strdup (filtered_name);
}
g_free (filtered_name);
if (data->reading_mode == READ_PRIVATE_CUSTOMIZATIONS) {
data->private_data_was_displayed = TRUE;
}
return GNOME_VFS_OK;
}
gboolean
nautilus_customization_data_private_data_was_displayed (NautilusCustomizationData *data)
{
return data->private_data_was_displayed;
}
void
nautilus_customization_data_destroy (NautilusCustomizationData *data)
{
g_assert (data->public_file_list != NULL ||
data->private_file_list != NULL);
if (data->pattern_frame != NULL) {
g_object_unref (data->pattern_frame);
}
gnome_vfs_file_info_list_free (data->public_file_list);
gnome_vfs_file_info_list_free (data->private_file_list);
if (data->name_map_hash != NULL) {
g_hash_table_destroy (data->name_map_hash);
}
g_free (data->customization_name);
g_free (data);
}
/* get_global_customization_directory
Get the path where a property's pixmaps are stored
@customization_name : the name of the customization to get.
Should be one of "emblems", "colors", or "paterns"
Return value: The directory name where the customization's
public pixmaps are stored */
static char *
get_global_customization_uri (const char *customization_name)
{
char *directory_path, *directory_uri;
directory_path = g_build_filename (NAUTILUS_DATADIR,
customization_name,
NULL);
directory_uri = gnome_vfs_get_uri_from_local_path (directory_path);
g_free (directory_path);
return directory_uri;
}
/* get_private_customization_directory
Get the path where a customization's pixmaps are stored
@customization_name : the name of the customization to get.
Should be one of "emblems", "colors", or "patterns"
Return value: The directory name where the customization's
user-specific pixmaps are stored */
static char *
get_private_customization_uri (const char *customization_name)
{
char *user_directory;
char *directory_path, *directory_uri;
user_directory = nautilus_get_user_directory ();
directory_path = g_build_filename (user_directory,
customization_name,
NULL);
g_free (user_directory);
directory_uri = gnome_vfs_get_uri_from_local_path (directory_path);
g_free (directory_path);
return directory_uri;
}
static char *
get_file_path_for_mode (const NautilusCustomizationData *data,
const char *file_name)
{
char *directory_uri, *uri, *directory_name;
if (data->reading_mode == READ_PUBLIC_CUSTOMIZATIONS) {
directory_uri = get_global_customization_uri (data->customization_name);
}
else {
directory_uri = get_private_customization_uri (data->customization_name);
}
uri = g_build_filename (directory_uri, file_name, NULL);
g_free (directory_uri);
directory_name = gnome_vfs_get_local_path_from_uri (uri);
g_free (uri);
return directory_name;
}
/* utility to make an attractive pattern image by compositing with a frame */
GdkPixbuf*
nautilus_customization_make_pattern_chit (GdkPixbuf *pattern_tile, GdkPixbuf *frame, gboolean dragging, gboolean is_reset)
{
GdkPixbuf *pixbuf, *temp_pixbuf;
int frame_width, frame_height;
int pattern_width, pattern_height;
frame_width = gdk_pixbuf_get_width (frame);
frame_height = gdk_pixbuf_get_height (frame);
pattern_width = gdk_pixbuf_get_width (pattern_tile);
pattern_height = gdk_pixbuf_get_height (pattern_tile);
pixbuf = gdk_pixbuf_copy (frame);
/* scale the pattern tile to the proper size */
gdk_pixbuf_scale (pattern_tile,
pixbuf,
2, 2, frame_width - 8, frame_height - 8,
0, 0,
(double)(frame_width - 8 + 1)/pattern_width,
(double)(frame_height - 8 + 1)/pattern_height,
GDK_INTERP_BILINEAR);
/* if we're dragging, get rid of the light-colored halo */
if (dragging) {
temp_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, frame_width - 8, frame_height - 8);
gdk_pixbuf_copy_area (pixbuf, 2, 2, frame_width - 8, frame_height - 8, temp_pixbuf, 0, 0);
g_object_unref (pixbuf);
pixbuf = temp_pixbuf;
}
g_object_unref (pattern_tile);
return pixbuf;
}
/* utility to format the passed-in name for display by stripping the extension, mapping underscore
and capitalizing as necessary */
static char*
format_name_for_display (NautilusCustomizationData *data, const char* name)
{
char *formatted_str, *mapped_name;
if (!eel_strcmp(name, RESET_IMAGE_NAME)) {
return g_strdup (_("Reset"));
}
/* map file names to display names using the mappings defined in the hash table */
formatted_str = strip_extension (name);
if (data->name_map_hash != NULL) {
mapped_name = g_hash_table_lookup (data->name_map_hash, formatted_str);
if (mapped_name) {
g_free (formatted_str);
formatted_str = g_strdup (mapped_name);
}
}
return formatted_str;
}
/* utility routine to allocate a hash table and load it with the appropriate
* name mapping data from the browser xml file
*/
static void
load_name_map_hash_table (NautilusCustomizationData *data)
{
char *xml_path;
char *filename, *display_name;
xmlDocPtr browser_data;
xmlNodePtr category_node, current_node;
/* allocate the hash table */
data->name_map_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
/* build the path name to the browser.xml file and load it */
xml_path = g_build_filename (NAUTILUS_DATADIR, "browser.xml", NULL);
if (xml_path) {
browser_data = xmlParseFile (xml_path);
g_free (xml_path);
if (browser_data) {
/* get the category node */
category_node = eel_xml_get_root_child_by_name_and_property (browser_data, "category", "name", data->customization_name);
current_node = category_node->children;
/* loop through the entries, adding a mapping to the hash table */
while (current_node != NULL) {
display_name = eel_xml_get_property_translated (current_node, "display_name");
filename = xmlGetProp (current_node, "filename");
if (display_name && filename) {
g_hash_table_replace (data->name_map_hash, g_strdup (filename), g_strdup (display_name));
}
xmlFree (filename);
xmlFree (display_name);
current_node = current_node->next;
}
/* close the xml file */
xmlFreeDoc (browser_data);
}
}
}
/* utility routine to strip the extension from the passed in string */
static char*
strip_extension (const char* string_to_strip)
{
char *result_str, *temp_str;
if (string_to_strip == NULL)
return NULL;
result_str = g_strdup(string_to_strip);
temp_str = strrchr(result_str, '.');
if (temp_str)
*temp_str = '\0';
return result_str;
}
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