1 | /* GTK - The GIMP Toolkit |
2 | * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
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 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 | /* |
19 | * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS |
20 | * file for a list of people on the GTK+ Team. See the ChangeLog |
21 | * files for a list of changes. These files are distributed with |
22 | * GTK+ at ftp://ftp.gtk.org/pub/gtk/. |
23 | */ |
24 | |
25 | #ifndef __GTK_SIZE_REQUEST_CACHE_PRIVATE_H__ |
26 | #define __GTK_SIZE_REQUEST_CACHE_PRIVATE_H__ |
27 | |
28 | #include <glib.h> |
29 | #include <gtk/gtkenums.h> |
30 | |
31 | G_BEGIN_DECLS |
32 | |
33 | /* Cache as many ranges of height-for-width |
34 | * (or width-for-height) as can be rational |
35 | * for a said widget to have, if a label can |
36 | * only wrap to 3 lines, only 3 caches will |
37 | * ever be allocated for it. |
38 | */ |
39 | #define GTK_SIZE_REQUEST_CACHED_SIZES (64) |
40 | |
41 | typedef struct { |
42 | int minimum_size; |
43 | int natural_size; |
44 | } CachedSizeX; |
45 | |
46 | typedef struct { |
47 | int minimum_size; |
48 | int natural_size; |
49 | int minimum_baseline; |
50 | int natural_baseline; |
51 | } CachedSizeY; |
52 | |
53 | typedef struct |
54 | { |
55 | int lower_for_size; /* The minimum for_size with the same result */ |
56 | int upper_for_size; /* The maximum for_size with the same result */ |
57 | CachedSizeX cached_size; |
58 | } SizeRequestX; |
59 | |
60 | typedef struct |
61 | { |
62 | int lower_for_size; /* The minimum for_size with the same result */ |
63 | int upper_for_size; /* The maximum for_size with the same result */ |
64 | CachedSizeY cached_size; |
65 | } SizeRequestY; |
66 | |
67 | typedef struct { |
68 | SizeRequestX **requests_x; |
69 | SizeRequestY **requests_y; |
70 | |
71 | CachedSizeX cached_size_x; |
72 | CachedSizeY cached_size_y; |
73 | |
74 | GtkSizeRequestMode request_mode : 3; |
75 | guint request_mode_valid : 1; |
76 | struct { |
77 | guint n_cached_requests : 15; |
78 | guint last_cached_request : 15; |
79 | guint cached_size_valid : 1; |
80 | } flags[2]; |
81 | } SizeRequestCache; |
82 | |
83 | void _gtk_size_request_cache_init (SizeRequestCache *cache); |
84 | void _gtk_size_request_cache_free (SizeRequestCache *cache); |
85 | |
86 | void _gtk_size_request_cache_clear (SizeRequestCache *cache); |
87 | void _gtk_size_request_cache_commit (SizeRequestCache *cache, |
88 | GtkOrientation orientation, |
89 | int for_size, |
90 | int minimum_size, |
91 | int natural_size, |
92 | int minimum_baseline, |
93 | int natural_baseline); |
94 | gboolean _gtk_size_request_cache_lookup (const SizeRequestCache *cache, |
95 | GtkOrientation orientation, |
96 | int for_size, |
97 | int *minimum, |
98 | int *natural, |
99 | int *minimum_baseline, |
100 | int *natural_baseline); |
101 | |
102 | G_END_DECLS |
103 | |
104 | #endif /* __GTK_SIZE_REQUEST_CACHE_PRIVATE_H__ */ |
105 | |