1 | /* |
2 | * Copyright © 2020 Benjamin Otte |
3 | * |
4 | * This library is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Lesser General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2.1 of the License, or (at your option) any later version. |
8 | * |
9 | * This library is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
16 | */ |
17 | |
18 | #include "config.h" |
19 | |
20 | #include "gtksortkeysprivate.h" |
21 | |
22 | #include "gtkcssstyleprivate.h" |
23 | #include "gtkstyleproviderprivate.h" |
24 | |
25 | GtkSortKeys * |
26 | gtk_sort_keys_alloc (const GtkSortKeysClass *klass, |
27 | gsize size, |
28 | gsize key_size, |
29 | gsize key_align) |
30 | { |
31 | GtkSortKeys *self; |
32 | |
33 | g_return_val_if_fail (key_align > 0, NULL); |
34 | |
35 | self = g_slice_alloc0 (block_size: size); |
36 | |
37 | self->klass = klass; |
38 | self->ref_count = 1; |
39 | |
40 | self->key_size = key_size; |
41 | self->key_align = key_align; |
42 | |
43 | return self; |
44 | } |
45 | |
46 | GtkSortKeys * |
47 | gtk_sort_keys_ref (GtkSortKeys *self) |
48 | { |
49 | self->ref_count += 1; |
50 | |
51 | return self; |
52 | } |
53 | |
54 | void |
55 | gtk_sort_keys_unref (GtkSortKeys *self) |
56 | { |
57 | self->ref_count -= 1; |
58 | if (self->ref_count > 0) |
59 | return; |
60 | |
61 | self->klass->free (self); |
62 | } |
63 | |
64 | gsize |
65 | gtk_sort_keys_get_key_size (GtkSortKeys *self) |
66 | { |
67 | return self->key_size; |
68 | } |
69 | |
70 | gsize |
71 | gtk_sort_keys_get_key_align (GtkSortKeys *self) |
72 | { |
73 | return self->key_align; |
74 | } |
75 | |
76 | GCompareDataFunc |
77 | gtk_sort_keys_get_key_compare_func (GtkSortKeys *self) |
78 | { |
79 | return self->klass->key_compare; |
80 | } |
81 | |
82 | gboolean |
83 | gtk_sort_keys_is_compatible (GtkSortKeys *self, |
84 | GtkSortKeys *other) |
85 | { |
86 | if (self == other) |
87 | return TRUE; |
88 | |
89 | return self->klass->is_compatible (self, other); |
90 | } |
91 | |
92 | gboolean |
93 | gtk_sort_keys_needs_clear_key (GtkSortKeys *self) |
94 | { |
95 | return self->klass->clear_key != NULL; |
96 | } |
97 | |
98 | static void |
99 | gtk_equal_sort_keys_free (GtkSortKeys *keys) |
100 | { |
101 | g_slice_free (GtkSortKeys, keys); |
102 | } |
103 | |
104 | static int |
105 | gtk_equal_sort_keys_compare (gconstpointer a, |
106 | gconstpointer b, |
107 | gpointer unused) |
108 | { |
109 | return GTK_ORDERING_EQUAL; |
110 | } |
111 | |
112 | static gboolean |
113 | gtk_equal_sort_keys_is_compatible (GtkSortKeys *keys, |
114 | GtkSortKeys *other) |
115 | { |
116 | return keys->klass == other->klass; |
117 | } |
118 | |
119 | static void |
120 | gtk_equal_sort_keys_init_key (GtkSortKeys *keys, |
121 | gpointer item, |
122 | gpointer key_memory) |
123 | { |
124 | } |
125 | |
126 | static const GtkSortKeysClass GTK_EQUAL_SORT_KEYS_CLASS = |
127 | { |
128 | gtk_equal_sort_keys_free, |
129 | gtk_equal_sort_keys_compare, |
130 | gtk_equal_sort_keys_is_compatible, |
131 | gtk_equal_sort_keys_init_key, |
132 | NULL |
133 | }; |
134 | |
135 | /*<private> |
136 | * gtk_sort_keys_new_equal: |
137 | * |
138 | * Creates a new GtkSortKeys that compares every element as equal. |
139 | * This is useful when sorters are in an invalid configuration. |
140 | * |
141 | * Returns: a new GtkSortKeys |
142 | **/ |
143 | GtkSortKeys * |
144 | gtk_sort_keys_new_equal (void) |
145 | { |
146 | return gtk_sort_keys_new (GtkSortKeys, |
147 | >K_EQUAL_SORT_KEYS_CLASS, |
148 | 0, 1); |
149 | } |
150 | |
151 | |