2 * Definitions for preference handling routines
4 * $Id: prefs.h,v 1.47 2003/10/02 21:06:11 guy Exp $
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
33 #define PR_DEST_FILE 1
36 #define DEF_HEIGHT 550
38 #define MAX_VAL_LEN 1024
41 * Convert a string listing name resolution types to a bitmask of
44 * Set "*name_resolve" to the bitmask, and return '\0', on success;
45 * return the bad character in the string on error.
47 char string_to_name_resolve(char *string, guint32 *name_resolve);
49 typedef struct _e_prefs {
56 color_t st_client_fg, st_client_bg, st_server_fg, st_server_bg;
57 gboolean gui_scrollbar_on_right;
58 gboolean gui_plist_sel_browse;
59 gboolean gui_ptree_sel_browse;
60 gboolean gui_altern_colors;
61 gint gui_ptree_line_style;
62 gint gui_ptree_expander_style;
63 gboolean gui_hex_dump_highlight_style;
65 color_t gui_marked_fg;
66 color_t gui_marked_bg;
67 gboolean gui_geometry_save_position;
68 gboolean gui_geometry_save_size;
69 gint gui_geometry_main_x;
70 gint gui_geometry_main_y;
71 gint gui_geometry_main_width;
72 gint gui_geometry_main_height;
74 gint name_resolve_concurrency;
75 gchar *capture_device;
76 gchar *capture_devices_descr;
77 gchar *capture_devices_hide;
78 gboolean capture_prom_mode;
79 gboolean capture_real_time;
80 gboolean capture_auto_scroll;
86 * Routines to let modules that have preference settings register
87 * themselves by name, and to let them register preference settings
92 typedef struct pref_module module_t;
95 * Register a module that will have preferences.
96 * Specify the module under which to register it or NULL to register it
97 * at the top level, the name used for the module in the preferences file,
98 * the title used in the tab for it in a preferences dialog box, and a
99 * routine to call back when we apply the preferences.
101 * This should not be used for dissector preferences;
102 * "prefs_register_protocol()" should be used for that, so that the
103 * preferences go under the "Protocols" subtree, and so that the
104 * name is the protocol name specified at the "proto_register_protocol()"
105 * call so that the "Protocol Properties..." menu item works.
107 extern module_t *prefs_register_module(module_t *parent, const char *name,
108 const char *title, void (*apply_cb)(void));
111 * Register a subtree that will have modules under it.
112 * Specify the module under which to register it or NULL to register it
113 * at the top level and the title used in the tab for it in a preferences
116 extern module_t *prefs_register_subtree(module_t *parent, const char *title);
119 * Register that a protocol has preferences.
121 extern module_t *prefs_register_protocol(int id, void (*apply_cb)(void));
124 * Register that a protocol used to have preferences but no longer does,
125 * by creating an "obsolete" module for it.
127 extern module_t *prefs_register_protocol_obsolete(int id);
130 * Callback function for module list scanners.
132 typedef void (*module_cb)(module_t *module, gpointer user_data);
135 * Call a callback function, with a specified argument, for each module
136 * in a list of modules. If the list is NULL, searches the top-level
137 * list in the display tree of modules.
139 * Ignores "obsolete" modules; their sole purpose is to allow old
140 * preferences for dissectors that no longer have preferences to be
141 * silently ignored in preference files. Does not ignore subtrees,
142 * as this can be used when walking the display tree of modules.
144 extern void prefs_module_list_foreach(GList *module_list, module_cb callback,
148 * Call a callback function, with a specified argument, for each module
149 * in the list of all modules. (This list does not include subtrees.)
151 * Ignores "obsolete" modules; their sole purpose is to allow old
152 * preferences for dissectors that no longer have preferences to be
153 * silently ignored in preference files.
155 extern void prefs_modules_foreach(module_cb callback, gpointer user_data);
158 * Call the "apply" callback function for each module if any of its
159 * preferences have changed, and then clear the flag saying its
160 * preferences have changed, as the module has been notified of that
163 extern void prefs_apply_all(void);
167 typedef struct preference pref_t;
170 * Returns TRUE if the given protocol has registered preferences.
172 extern gboolean prefs_is_registered_protocol(char *name);
175 * Returns the module title of a registered protocol (or NULL if unknown).
177 extern const char *prefs_get_title_by_name(char *name);
180 * Register a preference with an unsigned integral value.
182 extern void prefs_register_uint_preference(module_t *module, const char *name,
183 const char *title, const char *description, guint base, guint *var);
186 * Register a preference with an Boolean value.
188 extern void prefs_register_bool_preference(module_t *module, const char *name,
189 const char *title, const char *description, gboolean *var);
192 * Register a preference with an enumerated value.
199 extern void prefs_register_enum_preference(module_t *module, const char *name,
200 const char *title, const char *description, gint *var,
201 const enum_val_t *enumvals, gboolean radio_buttons);
204 * Register a preference with a character-string value.
206 extern void prefs_register_string_preference(module_t *module, const char *name,
207 const char *title, const char *description, char **var);
210 * Register a preference that used to be supported but no longer is.
212 extern void prefs_register_obsolete_preference(module_t *module,
215 typedef guint (*pref_cb)(pref_t *pref, gpointer user_data);
218 * Call a callback function, with a specified argument, for each preference
221 * If any of the callbacks return a non-zero value, stop and return that
222 * value, otherwise return 0.
224 extern guint prefs_pref_foreach(module_t *module, pref_cb callback,
228 * Register all non-dissector modules' preferences.
230 extern void prefs_register_modules(void);
232 /* Read the preferences file, fill in "prefs", and return a pointer to it.
234 If we got an error (other than "it doesn't exist") trying to read
235 the global preferences file, stuff the errno into "*gpf_errno_return"
236 on an open error and into "*gpf_read_errno_return" on a read error,
237 stuff a pointer to the path of the file into "*gpf_path_return", and
240 If we got an error (other than "it doesn't exist") trying to read
241 the user's preferences file, stuff the errno into "*pf_errno_return"
242 on an open error and into "*pf_read_errno_return" on a read error,
243 stuff a pointer to the path of the file into "*pf_path_return", and
245 extern e_prefs *read_prefs(int *, int *, char **, int *, int *, char **);
247 /* Write out "prefs" to the user's preferences file, and return 0.
249 If we got an error, stuff a pointer to the path of the preferences file
250 into "*pf_path_return", and return the errno. */
251 extern int write_prefs(char **);
253 /* Copy a set of preferences. */
254 extern void copy_prefs(e_prefs *dest, e_prefs *src);
256 /* Free a set of preferences. */
257 extern void free_prefs(e_prefs *pr);
260 * Given a string of the form "<pref name>:<pref value>", as might appear
261 * as an argument to a "-o" option, parse it and set the preference in
262 * question. Return an indication of whether it succeeded or failed
265 * XXX - should supply, for syntax errors, a detailed explanation of
268 #define PREFS_SET_OK 0 /* succeeded */
269 #define PREFS_SET_SYNTAX_ERR 1 /* syntax error in string */
270 #define PREFS_SET_NO_SUCH_PREF 2 /* no such preference */
271 #define PREFS_SET_OBSOLETE 3 /* preference used to exist but no longer does */
273 extern int prefs_set_pref(char *prefarg);