source: branches/joshe/gtk/util.h @ 71

Last change on this file since 71 was 24, checked in by root, 16 years ago

Update 2006-01-03

File size: 3.1 KB
Line 
1/*
2  Copyright (c) 2005 Joshua Elsasser. All rights reserved.
3   
4  Redistribution and use in source and binary forms, with or without
5  modification, are permitted provided that the following conditions
6  are met:
7   
8   1. Redistributions of source code must retain the above copyright
9      notice, this list of conditions and the following disclaimer.
10   2. Redistributions in binary form must reproduce the above copyright
11      notice, this list of conditions and the following disclaimer in the
12      documentation and/or other materials provided with the distribution.
13   
14  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS "AS IS" AND
15  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24  POSSIBILITY OF SUCH DAMAGE.
25*/
26
27#ifndef TG_UTIL_H
28#define TG_UTIL_H
29
30#include <sys/types.h>
31#include <stdarg.h>
32
33/* macro to shut up "unused parameter" warnings */
34#ifdef __GNUC__
35#define SHUTUP                  __attribute__((unused))
36#else
37#define SHUTUP
38#endif
39
40/* return number of items in array */
41#define ALEN(a)                 (sizeof(a) / sizeof((a)[0]))
42
43/* used for a callback function with a data parameter */
44typedef void (*callbackfunc_t)(void*);
45
46/* try to interpret a string as a textual representation of a boolean */
47gboolean
48strbool(const char *str);
49
50/* return a human-readable string for the size given in bytes with the
51   requested number of decimal places.  the string must be g_free()d */
52char *
53readablesize(guint64 size, int decimals);
54
55/* create a directory and any missing parent directories */
56gboolean
57mkdir_p(const char *name, mode_t mode);
58
59/* set up a handler for various fatal signals */
60void
61setuphandlers(callbackfunc_t func, void *data);
62
63/* clear the handlers for fatal signals */
64void
65clearhandlers(void);
66
67/* blocks and unblocks delivery of fatal signals. calls to these
68   functions can be nested as long as unblocksigs() is called exactly
69   as many times as blocksigs().  only the first blocksigs() will
70   block signals and only the last unblocksigs() will unblock them. */
71void
72blocksigs(void);
73void
74unblocksigs(void);
75
76/* if wind is NULL then you must call gtk_widget_show on the returned widget */
77
78GtkWidget *
79errmsg(GtkWindow *wind, const char *format, ...)
80#ifdef __GNUC__
81  __attribute__ ((format (printf, 2, 3)))
82#endif
83  ;
84
85GtkWidget *
86errmsg_full(GtkWindow *wind, callbackfunc_t func, void *data,
87            const char *format, ...)
88#ifdef __GNUC__
89  __attribute__ ((format (printf, 4, 5)))
90#endif
91  ;
92
93GtkWidget *
94verrmsg(GtkWindow *wind, callbackfunc_t func, void *data,
95        const char *format, va_list ap);
96
97#endif /* TG_UTIL_H */
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