2 * Definitions for preference handling routines
4 * $Id: prefs.h,v 1.55 2004/01/20 18:47:22 ulfl 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
40 /* only GTK1 *or* GTK2 font_name should be used */
41 #if GTK_MAJOR_VERSION < 2
42 #define PREFS_GUI_FONT_NAME gui_font_name1
44 #define PREFS_GUI_FONT_NAME gui_font_name2
48 * Convert a string listing name resolution types to a bitmask of
51 * Set "*name_resolve" to the bitmask, and return '\0', on success;
52 * return the bad character in the string on error.
54 char string_to_name_resolve(char *string, guint32 *name_resolve);
57 * Modes for the starting directory in File Open dialogs.
59 #define FO_STYLE_LAST_OPENED 0 /* start in last directory we looked at */
60 #define FO_STYLE_SPECIFIED 1 /* start in specified directory */
65 #define TB_STYLE_ICONS 0
66 #define TB_STYLE_TEXT 1
67 #define TB_STYLE_BOTH 2
69 typedef struct _e_prefs {
76 color_t st_client_fg, st_client_bg, st_server_fg, st_server_bg;
77 gboolean gui_scrollbar_on_right;
78 gboolean gui_plist_sel_browse;
79 gboolean gui_ptree_sel_browse;
80 gboolean gui_altern_colors;
81 gint gui_ptree_line_style;
82 gint gui_ptree_expander_style;
83 gboolean gui_hex_dump_highlight_style;
84 gint gui_toolbar_main_style;
85 gchar *gui_font_name1;
86 gchar *gui_font_name2;
87 color_t gui_marked_fg;
88 color_t gui_marked_bg;
89 gboolean gui_geometry_save_position;
90 gboolean gui_geometry_save_size;
91 gint gui_geometry_main_x;
92 gint gui_geometry_main_y;
93 gint gui_geometry_main_width;
94 gint gui_geometry_main_height;
95 guint gui_fileopen_style;
96 guint gui_recent_files_count_max;
97 gchar *gui_fileopen_dir;
98 gchar *gui_fileopen_remembered_dir;
100 gint name_resolve_concurrency;
101 gchar *capture_device;
102 gchar *capture_devices_descr;
103 gchar *capture_devices_hide;
104 gboolean capture_prom_mode;
105 gboolean capture_real_time;
106 gboolean capture_auto_scroll;
109 extern e_prefs prefs;
112 * Routines to let modules that have preference settings register
113 * themselves by name, and to let them register preference settings
118 typedef struct pref_module module_t;
121 * Register a module that will have preferences.
122 * Specify the module under which to register it or NULL to register it
123 * at the top level, the name used for the module in the preferences file,
124 * the title used in the tab for it in a preferences dialog box, and a
125 * routine to call back when we apply the preferences.
127 * This should not be used for dissector preferences;
128 * "prefs_register_protocol()" should be used for that, so that the
129 * preferences go under the "Protocols" subtree, and so that the
130 * name is the protocol name specified at the "proto_register_protocol()"
131 * call so that the "Protocol Properties..." menu item works.
133 extern module_t *prefs_register_module(module_t *parent, const char *name,
134 const char *title, void (*apply_cb)(void));
137 * Register a subtree that will have modules under it.
138 * Specify the module under which to register it or NULL to register it
139 * at the top level and the title used in the tab for it in a preferences
142 extern module_t *prefs_register_subtree(module_t *parent, const char *title);
145 * Register that a protocol has preferences.
147 extern module_t *prefs_register_protocol(int id, void (*apply_cb)(void));
150 * Register that a protocol used to have preferences but no longer does,
151 * by creating an "obsolete" module for it.
153 extern module_t *prefs_register_protocol_obsolete(int id);
156 * Callback function for module list scanners.
158 typedef void (*module_cb)(module_t *module, gpointer user_data);
161 * Call a callback function, with a specified argument, for each module
162 * in a list of modules. If the list is NULL, searches the top-level
163 * list in the display tree of modules.
165 * Ignores "obsolete" modules; their sole purpose is to allow old
166 * preferences for dissectors that no longer have preferences to be
167 * silently ignored in preference files. Does not ignore subtrees,
168 * as this can be used when walking the display tree of modules.
170 extern void prefs_module_list_foreach(GList *module_list, module_cb callback,
174 * Call a callback function, with a specified argument, for each module
175 * in the list of all modules. (This list does not include subtrees.)
177 * Ignores "obsolete" modules; their sole purpose is to allow old
178 * preferences for dissectors that no longer have preferences to be
179 * silently ignored in preference files.
181 extern void prefs_modules_foreach(module_cb callback, gpointer user_data);
184 * Call the "apply" callback function for each module if any of its
185 * preferences have changed, and then clear the flag saying its
186 * preferences have changed, as the module has been notified of that
189 extern void prefs_apply_all(void);
193 typedef struct preference pref_t;
196 * Returns TRUE if the given protocol has registered preferences.
198 extern gboolean prefs_is_registered_protocol(char *name);
201 * Returns the module title of a registered protocol (or NULL if unknown).
203 extern const char *prefs_get_title_by_name(char *name);
206 * Register a preference with an unsigned integral value.
208 extern void prefs_register_uint_preference(module_t *module, const char *name,
209 const char *title, const char *description, guint base, guint *var);
212 * Register a preference with an Boolean value.
214 extern void prefs_register_bool_preference(module_t *module, const char *name,
215 const char *title, const char *description, gboolean *var);
218 * Register a preference with an enumerated value.
225 extern void prefs_register_enum_preference(module_t *module, const char *name,
226 const char *title, const char *description, gint *var,
227 const enum_val_t *enumvals, gboolean radio_buttons);
230 * Register a preference with a character-string value.
232 extern void prefs_register_string_preference(module_t *module, const char *name,
233 const char *title, const char *description, char **var);
236 * Register a preference that used to be supported but no longer is.
238 extern void prefs_register_obsolete_preference(module_t *module,
241 typedef guint (*pref_cb)(pref_t *pref, gpointer user_data);
244 * Call a callback function, with a specified argument, for each preference
247 * If any of the callbacks return a non-zero value, stop and return that
248 * value, otherwise return 0.
250 extern guint prefs_pref_foreach(module_t *module, pref_cb callback,
254 * Register all non-dissector modules' preferences.
256 extern void prefs_register_modules(void);
258 /* Read the preferences file, fill in "prefs", and return a pointer to it.
260 If we got an error (other than "it doesn't exist") trying to read
261 the global preferences file, stuff the errno into "*gpf_errno_return"
262 on an open error and into "*gpf_read_errno_return" on a read error,
263 stuff a pointer to the path of the file into "*gpf_path_return", and
266 If we got an error (other than "it doesn't exist") trying to read
267 the user's preferences file, stuff the errno into "*pf_errno_return"
268 on an open error and into "*pf_read_errno_return" on a read error,
269 stuff a pointer to the path of the file into "*pf_path_return", and
271 extern e_prefs *read_prefs(int *, int *, char **, int *, int *, char **);
273 /* Write out "prefs" to the user's preferences file, and return 0.
275 If we got an error, stuff a pointer to the path of the preferences file
276 into "*pf_path_return", and return the errno. */
277 extern int write_prefs(char **);
279 /* Copy a set of preferences. */
280 extern void copy_prefs(e_prefs *dest, e_prefs *src);
282 /* Free a set of preferences. */
283 extern void free_prefs(e_prefs *pr);
286 * Given a string of the form "<pref name>:<pref value>", as might appear
287 * as an argument to a "-o" option, parse it and set the preference in
288 * question. Return an indication of whether it succeeded or failed
291 * XXX - should supply, for syntax errors, a detailed explanation of
294 #define PREFS_SET_OK 0 /* succeeded */
295 #define PREFS_SET_SYNTAX_ERR 1 /* syntax error in string */
296 #define PREFS_SET_NO_SUCH_PREF 2 /* no such preference */
297 #define PREFS_SET_OBSOLETE 3 /* preference used to exist but no longer does */
299 extern int prefs_set_pref(char *prefarg);