571 lines
17 KiB
C
571 lines
17 KiB
C
/*
|
|
* moofoldermodel-private.h
|
|
*
|
|
* Copyright (C) 2004-2006 by Yevgen Muntyan <muntyan@math.tamu.edu>
|
|
*
|
|
* 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.
|
|
*
|
|
* See COPYING file that comes with this distribution.
|
|
*/
|
|
|
|
#ifndef MOO_FILE_VIEW_COMPILATION
|
|
#error "This file may not be included"
|
|
#endif
|
|
|
|
#ifndef __MOO_FOLDER_MODEL_PRIVATE_H__
|
|
#define __MOO_FOLDER_MODEL_PRIVATE_H__
|
|
|
|
#include <glib.h>
|
|
#include <string.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _FileList FileList;
|
|
|
|
typedef int (*MooFileCmp) (MooFile *file1, MooFile *file2);
|
|
|
|
struct _FileList {
|
|
GList *list; /* MooFile*, sorted by name */
|
|
int size;
|
|
GHashTable *name_to_file; /* char* -> MooFile* */
|
|
GHashTable *display_name_to_file; /* char* -> MooFile* */
|
|
GHashTable *file_to_link; /* MooFile* -> GList* */
|
|
MooFileCmp cmp_func;
|
|
};
|
|
|
|
|
|
static FileList *file_list_new (MooFileCmp cmp_func);
|
|
static void file_list_destroy (FileList *flist);
|
|
|
|
static void file_list_set_cmp_func (FileList *flist,
|
|
MooFileCmp cmp_func,
|
|
int **new_order);
|
|
|
|
static int file_list_add (FileList *flist,
|
|
MooFile *file);
|
|
static int file_list_remove (FileList *flist,
|
|
MooFile *file);
|
|
|
|
static MooFile *file_list_nth (FileList *flist,
|
|
int index_);
|
|
static gboolean file_list_contains (FileList *flist,
|
|
MooFile *file);
|
|
static int file_list_position (FileList *flist,
|
|
MooFile *file);
|
|
|
|
static MooFile *file_list_find_name (FileList *flist,
|
|
const char *name);
|
|
static MooFile *file_list_find_display_name
|
|
(FileList *flist,
|
|
const char *display_name);
|
|
|
|
static MooFile *file_list_first (FileList *flist);
|
|
static MooFile *file_list_next (FileList *flist,
|
|
MooFile *file);
|
|
|
|
static GSList *file_list_get_slist (FileList *flist);
|
|
|
|
static void _list_sort (GList **list,
|
|
guint list_len,
|
|
MooFileCmp cmp_func,
|
|
int **new_order);
|
|
static GList *_list_insert_sorted (GList **list,
|
|
int *list_len,
|
|
MooFileCmp cmp_func,
|
|
MooFile *file,
|
|
int *position);
|
|
static void _list_delete_link (GList **list,
|
|
GList *link,
|
|
int *list_len);
|
|
static GList *_list_find (FileList *flist,
|
|
MooFile *file,
|
|
int *index_);
|
|
|
|
static void _hash_table_insert (FileList *flist,
|
|
MooFile *file,
|
|
GList *link);
|
|
static void _hash_table_remove (FileList *flist,
|
|
MooFile *file);
|
|
|
|
|
|
#ifdef MOO_DEBUG
|
|
#if 0
|
|
#define DEFINE_CHECK_FILE_LIST_INTEGRITY
|
|
static void CHECK_FILE_LIST_INTEGRITY (FileList *flist)
|
|
{
|
|
GList *link;
|
|
|
|
g_assert ((int)g_list_length (flist->list) == flist->size);
|
|
g_assert ((int)g_hash_table_size (flist->name_to_file) == flist->size);
|
|
g_assert ((int)g_hash_table_size (flist->display_name_to_file) == flist->size);
|
|
g_assert ((int)g_hash_table_size (flist->file_to_link) == flist->size);
|
|
|
|
for (link = flist->list; link != NULL; link = link->next)
|
|
{
|
|
MooFile *file = link->data;
|
|
g_assert (file != NULL);
|
|
g_assert (file == g_hash_table_lookup (flist->name_to_file,
|
|
_moo_file_name (file)));
|
|
g_assert (file == g_hash_table_lookup (flist->display_name_to_file,
|
|
_moo_file_display_name (file)));
|
|
g_assert (link == g_hash_table_lookup (flist->file_to_link, file));
|
|
}
|
|
}
|
|
#endif
|
|
#endif /* MOO_DEBUG */
|
|
|
|
#ifndef DEFINE_CHECK_FILE_LIST_INTEGRITY
|
|
#define CHECK_FILE_LIST_INTEGRITY(flist)
|
|
#endif
|
|
|
|
|
|
static FileList *file_list_new (MooFileCmp cmp_func)
|
|
{
|
|
FileList *flist = g_new0 (FileList, 1);
|
|
|
|
flist->name_to_file =
|
|
g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
|
|
flist->display_name_to_file =
|
|
g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
|
|
flist->file_to_link = g_hash_table_new (g_direct_hash, g_direct_equal);
|
|
flist->cmp_func = cmp_func;
|
|
|
|
CHECK_FILE_LIST_INTEGRITY (flist);
|
|
|
|
return flist;
|
|
}
|
|
|
|
|
|
static void file_list_destroy (FileList *flist)
|
|
{
|
|
g_return_if_fail (flist != NULL);
|
|
|
|
g_hash_table_destroy (flist->display_name_to_file);
|
|
g_hash_table_destroy (flist->name_to_file);
|
|
g_hash_table_destroy (flist->file_to_link);
|
|
|
|
g_list_foreach (flist->list, (GFunc) _moo_file_unref, NULL);
|
|
g_list_free (flist->list);
|
|
|
|
g_free (flist);
|
|
}
|
|
|
|
|
|
static int file_list_add (FileList *flist,
|
|
MooFile *file)
|
|
{
|
|
int index_;
|
|
GList *link;
|
|
|
|
link = _list_insert_sorted (&flist->list,
|
|
&flist->size,
|
|
flist->cmp_func,
|
|
_moo_file_ref (file),
|
|
&index_);
|
|
_hash_table_insert (flist, file, link);
|
|
|
|
CHECK_FILE_LIST_INTEGRITY (flist);
|
|
|
|
return index_;
|
|
}
|
|
|
|
|
|
static int file_list_remove (FileList *flist,
|
|
MooFile *file)
|
|
{
|
|
int index_ = 0;
|
|
GList *link;
|
|
|
|
link = _list_find (flist, file, &index_);
|
|
g_assert (link != NULL);
|
|
|
|
_hash_table_remove (flist, file);
|
|
_list_delete_link (&flist->list, link, &flist->size);
|
|
|
|
CHECK_FILE_LIST_INTEGRITY (flist);
|
|
|
|
_moo_file_unref (file);
|
|
return index_;
|
|
}
|
|
|
|
|
|
static gboolean file_list_contains (FileList *flist,
|
|
MooFile *file)
|
|
{
|
|
return g_hash_table_lookup (flist->file_to_link, file) != NULL;
|
|
}
|
|
|
|
|
|
static MooFile *file_list_nth (FileList *flist,
|
|
int index_)
|
|
{
|
|
MooFile *file;
|
|
g_assert (0 <= index_ && index_ < flist->size);
|
|
file = g_list_nth_data (flist->list, index_);
|
|
g_assert (file != NULL);
|
|
return file;
|
|
}
|
|
|
|
|
|
/* TODO */
|
|
static int file_list_position (FileList *flist,
|
|
MooFile *file)
|
|
{
|
|
GList *link;
|
|
int position;
|
|
g_assert (file != NULL);
|
|
link = g_hash_table_lookup (flist->file_to_link, file);
|
|
g_assert (link != NULL);
|
|
position = g_list_position (flist->list, link);
|
|
g_assert (position >= 0);
|
|
return position;
|
|
}
|
|
|
|
|
|
static MooFile *file_list_find_name (FileList *flist,
|
|
const char *name)
|
|
{
|
|
return g_hash_table_lookup (flist->name_to_file, name);
|
|
}
|
|
|
|
|
|
static MooFile *file_list_find_display_name
|
|
(FileList *flist,
|
|
const char *display_name)
|
|
{
|
|
return g_hash_table_lookup (flist->display_name_to_file,
|
|
display_name);
|
|
}
|
|
|
|
|
|
static MooFile *file_list_first (FileList *flist)
|
|
{
|
|
if (flist->list)
|
|
return flist->list->data;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static MooFile *file_list_next (FileList *flist,
|
|
MooFile *file)
|
|
{
|
|
GList *link = g_hash_table_lookup (flist->file_to_link, file);
|
|
g_assert (link != NULL);
|
|
if (link->next)
|
|
return link->next->data;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static GSList *file_list_get_slist (FileList *flist)
|
|
{
|
|
GList *l;
|
|
GSList *slist = NULL;
|
|
|
|
for (l = flist->list; l != NULL; l = l->next)
|
|
slist = g_slist_prepend (slist, _moo_file_ref (l->data));
|
|
|
|
return g_slist_reverse (slist);
|
|
}
|
|
|
|
|
|
static void file_list_set_cmp_func (FileList *flist,
|
|
MooFileCmp cmp_func,
|
|
int **new_order)
|
|
{
|
|
flist->cmp_func = cmp_func;
|
|
|
|
if (flist->size)
|
|
{
|
|
_list_sort (&flist->list, flist->size, cmp_func, new_order);
|
|
CHECK_FILE_LIST_INTEGRITY (flist);
|
|
}
|
|
}
|
|
|
|
|
|
static void _hash_table_insert (FileList *flist,
|
|
MooFile *file,
|
|
GList *link)
|
|
{
|
|
g_hash_table_insert (flist->file_to_link, file, link);
|
|
g_hash_table_insert (flist->name_to_file,
|
|
g_strdup (_moo_file_name (file)),
|
|
file);
|
|
g_hash_table_insert (flist->display_name_to_file,
|
|
g_strdup (_moo_file_display_name (file)),
|
|
file);
|
|
}
|
|
|
|
|
|
static void _hash_table_remove (FileList *flist,
|
|
MooFile *file)
|
|
{
|
|
g_hash_table_remove (flist->file_to_link, file);
|
|
g_hash_table_remove (flist->name_to_file,
|
|
_moo_file_name (file));
|
|
g_hash_table_remove (flist->display_name_to_file,
|
|
_moo_file_display_name (file));
|
|
}
|
|
|
|
|
|
static void _list_delete_link (GList **list,
|
|
GList *link,
|
|
int *list_len)
|
|
{
|
|
g_assert (*list_len == (int)g_list_length (*list));
|
|
*list = g_list_delete_link (*list, link);
|
|
(*list_len)--;
|
|
g_assert (*list_len == (int)g_list_length (*list));
|
|
}
|
|
|
|
|
|
/* TODO */
|
|
static GList *_list_find (FileList *flist,
|
|
MooFile *file,
|
|
int *index_)
|
|
{
|
|
GList *link = g_hash_table_lookup (flist->file_to_link, file);
|
|
g_return_val_if_fail (link != NULL, NULL);
|
|
*index_ = g_list_position (flist->list, link);
|
|
g_return_val_if_fail (*index_ >= 0, NULL);
|
|
return link;
|
|
}
|
|
|
|
|
|
static int moo_file_case_cmp (MooFile *f1,
|
|
MooFile *f2)
|
|
{
|
|
if (!strcmp (_moo_file_name (f1), ".."))
|
|
return strcmp (_moo_file_name (f2), "..") ? -1 : 0;
|
|
else if (!strcmp (_moo_file_name (f2), ".."))
|
|
return 1;
|
|
else
|
|
return strcmp (_moo_file_collation_key (f1),
|
|
_moo_file_collation_key (f2));
|
|
}
|
|
|
|
static int moo_file_cmp (MooFile *f1,
|
|
MooFile *f2)
|
|
{
|
|
if (!strcmp (_moo_file_name (f1), ".."))
|
|
return strcmp (_moo_file_name (f2), "..") ? -1 : 0;
|
|
else if (!strcmp (_moo_file_name (f2), ".."))
|
|
return 1;
|
|
else
|
|
return strcmp (_moo_file_display_name (f1),
|
|
_moo_file_display_name (f2));
|
|
}
|
|
|
|
|
|
/* TODO XXX cmp_func may return 0. what then? */
|
|
static void _find_insert_position (GList *list,
|
|
int list_len,
|
|
MooFileCmp cmp_func,
|
|
MooFile *file,
|
|
GList **prev,
|
|
GList **next,
|
|
int *position)
|
|
{
|
|
GList *left = NULL, *right = NULL;
|
|
int pos = -1;
|
|
|
|
while (list_len)
|
|
{
|
|
int cmp;
|
|
|
|
if (!left)
|
|
{
|
|
left = list;
|
|
pos = 0;
|
|
}
|
|
|
|
cmp = cmp_func (file, left->data);
|
|
g_assert (cmp != 0);
|
|
|
|
if (cmp < 0)
|
|
{
|
|
right = left;
|
|
left = left->prev;
|
|
pos--;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if (list_len == 1)
|
|
{
|
|
right = left->next;
|
|
break;
|
|
}
|
|
else if (list_len == 2)
|
|
{
|
|
g_assert (left->next != NULL);
|
|
cmp = cmp_func (file, left->next->data);
|
|
g_assert (cmp != 0);
|
|
|
|
if (cmp < 0)
|
|
{
|
|
right = left->next;
|
|
}
|
|
else
|
|
{
|
|
right = left->next->next;
|
|
left = left->next;
|
|
pos++;
|
|
}
|
|
|
|
break;
|
|
}
|
|
else if (list_len % 2)
|
|
{
|
|
right = g_list_nth (left, list_len / 2);
|
|
g_assert (right != NULL);
|
|
|
|
cmp = cmp_func (file, right->data);
|
|
g_assert (cmp != 0);
|
|
|
|
if (cmp > 0)
|
|
{
|
|
left = right;
|
|
pos += list_len / 2;
|
|
}
|
|
|
|
list_len = list_len / 2 + 1;
|
|
}
|
|
else
|
|
{
|
|
right = g_list_nth (left, list_len / 2);
|
|
g_assert (right != NULL);
|
|
|
|
cmp = cmp_func (file, right->data);
|
|
g_assert (cmp != 0);
|
|
|
|
if (cmp < 0)
|
|
{
|
|
list_len = list_len / 2 + 1;
|
|
}
|
|
else
|
|
{
|
|
left = right;
|
|
pos += list_len / 2;
|
|
list_len = list_len / 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*next = right;
|
|
*prev = left;
|
|
*position = pos + 1;
|
|
}
|
|
|
|
/* TODO */
|
|
static GList *_list_insert_sorted (GList **list,
|
|
int *list_len,
|
|
MooFileCmp cmp_func,
|
|
MooFile *file,
|
|
int *position)
|
|
{
|
|
GList *link;
|
|
GList *prev, *next;
|
|
|
|
g_assert (*list_len == (int)g_list_length (*list));
|
|
g_assert (g_list_find (*list, file) == NULL);
|
|
|
|
_find_insert_position (*list, *list_len, cmp_func, file, &prev, &next, position);
|
|
g_assert (*position >= 0);
|
|
|
|
link = g_list_alloc ();
|
|
link->data = file;
|
|
link->prev = prev;
|
|
link->next = next;
|
|
|
|
if (prev)
|
|
prev->next = link;
|
|
else
|
|
*list = link;
|
|
|
|
if (next)
|
|
next->prev = link;
|
|
|
|
(*list_len)++;
|
|
g_assert (g_list_nth (*list, *position) == link);
|
|
g_assert (*list_len == (int)g_list_length (*list));
|
|
return link;
|
|
}
|
|
|
|
|
|
static int _compare_links (int *a,
|
|
int *b,
|
|
gpointer user_data)
|
|
{
|
|
struct {
|
|
MooFileCmp cmp_func;
|
|
GList **links;
|
|
} *data = user_data;
|
|
|
|
return data->cmp_func (data->links[*a]->data, data->links[*b]->data);
|
|
}
|
|
|
|
|
|
static void _list_sort (GList **list,
|
|
guint list_len,
|
|
MooFileCmp cmp_func,
|
|
int **new_order_p)
|
|
{
|
|
guint i;
|
|
GList **links;
|
|
int *order;
|
|
GList *l;
|
|
struct {
|
|
MooFileCmp cmp_func;
|
|
GList **links;
|
|
} data;
|
|
|
|
g_return_if_fail (list_len != 0);
|
|
|
|
links = g_new (GList*, list_len);
|
|
order = g_new (int, list_len);
|
|
|
|
for (i = 0, l = *list; i < list_len; ++i, l = l->next)
|
|
{
|
|
g_assert (i > 0 || l->prev == NULL);
|
|
g_assert (i < list_len - 1 || l->next == NULL);
|
|
g_assert (i == 0 || i == list_len - 1 || (l->next != NULL && l->prev != NULL));
|
|
|
|
order[i] = i;
|
|
links[i] = l;
|
|
}
|
|
|
|
data.cmp_func = cmp_func;
|
|
data.links = links;
|
|
g_qsort_with_data (order, list_len, sizeof (int),
|
|
(GCompareDataFunc) _compare_links, &data);
|
|
|
|
for (i = 0; i < list_len; ++i)
|
|
{
|
|
if (i == 0)
|
|
links[i]->prev = NULL;
|
|
else
|
|
links[i]->prev = links[i-1];
|
|
if (i == list_len - 1)
|
|
links[i]->next = NULL;
|
|
else
|
|
links[i]->next = links[i+1];
|
|
}
|
|
|
|
*list = links[0];
|
|
*new_order_p = order;
|
|
|
|
g_free (links);
|
|
}
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __MOO_FOLDER_MODEL_PRIVATE_H__ */
|