460b9539 |
1 | /* |
2 | * This file is part of DisOrder |
3 | * Copyright (C) 2006 Richard Kettlewell |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
18 | * USA |
19 | */ |
20 | |
21 | #include <config.h> |
22 | #include "types.h" |
23 | |
24 | #include "mem.h" |
25 | #include "hash.h" |
26 | #include "selection.h" |
27 | |
28 | hash *selection_new(void) { |
29 | return hash_new(sizeof (int)); |
30 | } |
31 | |
32 | void selection_set(hash *h, const char *key, int selected) { |
33 | if(selected) |
34 | hash_add(h, key, xmalloc_noptr(sizeof (int)), HASH_INSERT_OR_REPLACE); |
35 | else |
36 | hash_remove(h, key); |
37 | } |
38 | |
39 | int selection_selected(hash *h, const char *key) { |
40 | return hash_find(h, key) != 0; |
41 | } |
42 | |
43 | void selection_flip(hash *h, const char *key) { |
44 | selection_set(h, key, !selection_selected(h, key)); |
45 | } |
46 | |
47 | void selection_live(hash *h, const char *key) { |
48 | int *ptr = hash_find(h, key); |
49 | |
50 | if(ptr) |
51 | *ptr = 1; |
52 | } |
53 | |
54 | static int selection_cleanup_callback(const char *key, |
55 | void *value, |
56 | void *v) { |
57 | if(*(int *)value) |
58 | *(int *)value = 0; |
59 | else |
60 | hash_remove((hash *)v, key); |
61 | return 0; |
62 | } |
63 | |
64 | void selection_cleanup(hash *h) { |
65 | hash_foreach(h, selection_cleanup_callback, h); |
66 | } |
67 | |
68 | static int selection_empty_callback(const char *key, |
69 | void attribute((unused)) *value, |
70 | void *v) { |
71 | hash_remove((hash *)v, key); |
72 | return 0; |
73 | } |
74 | |
75 | void selection_empty(hash *h) { |
76 | hash_foreach(h, selection_empty_callback, h); |
77 | } |
78 | |
79 | /* |
80 | Local Variables: |
81 | c-basic-offset:2 |
82 | comment-column:40 |
83 | fill-column:79 |
84 | indent-tabs-mode:nil |
85 | End: |
86 | */ |