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1 | /* | |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2007, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | #include <gtk/gtk.h> | |
22 | #include <glib/gi18n.h> | |
23 | #include <string.h> | |
24 | #include <stdio.h> | |
25 | #include <glib/gstdio.h> | |
26 | #include "preferences.h" | |
27 | #include "dir.h" | |
28 | #include "file.h" | |
29 | #include "util.h" | |
30 | ||
31 | // TODO: STRING_LIST | |
32 | // TODO: share code in file reading | |
33 | // TODO: remove hackaround in show_window | |
34 | ||
35 | #define VIKING_PREFS_FILE "viking.prefs" | |
36 | ||
37 | static GPtrArray *params; | |
38 | static GHashTable *values; | |
39 | gboolean loaded; | |
40 | ||
41 | /************ groups *********/ | |
42 | ||
43 | static GPtrArray *groups_names; | |
44 | static GHashTable *groups_keys_to_indices; // contains gint, NULL (0) is not found, instead 1 is used for 0, 2 for 1, etc. | |
45 | ||
46 | static void preferences_groups_init() | |
47 | { | |
48 | groups_names = g_ptr_array_new(); | |
49 | groups_keys_to_indices = g_hash_table_new_full ( g_str_hash, g_str_equal, g_free, NULL ); | |
50 | } | |
51 | ||
52 | static void preferences_groups_uninit() | |
53 | { | |
54 | g_ptr_array_foreach ( groups_names, (GFunc)g_free, NULL ); | |
55 | g_ptr_array_free ( groups_names, TRUE ); | |
56 | g_hash_table_destroy ( groups_keys_to_indices ); | |
57 | } | |
58 | ||
59 | void a_preferences_register_group ( const gchar *key, const gchar *name ) | |
60 | { | |
61 | if ( g_hash_table_lookup ( groups_keys_to_indices, key ) ) | |
62 | g_critical("Duplicate preferences group keys"); | |
63 | else { | |
64 | g_ptr_array_add ( groups_names, g_strdup(name) ); | |
65 | g_hash_table_insert ( groups_keys_to_indices, g_strdup(key), GINT_TO_POINTER ( (gint) groups_names->len ) ); /* index + 1 */ | |
66 | } | |
67 | } | |
68 | ||
69 | /* returns -1 if not found. */ | |
70 | static gint16 preferences_groups_key_to_index( const gchar *key ) | |
71 | { | |
72 | gint index = GPOINTER_TO_INT ( g_hash_table_lookup ( groups_keys_to_indices, key ) ); | |
73 | if ( ! index ) | |
74 | return VIK_LAYER_GROUP_NONE; /* which should be -1 anyway */ | |
75 | return (gint16) (index - 1); | |
76 | } | |
77 | ||
78 | /*****************************/ | |
79 | ||
80 | static gboolean preferences_load_from_file() | |
81 | { | |
82 | gchar *fn = g_build_filename(a_get_viking_dir(), VIKING_PREFS_FILE, NULL); | |
83 | FILE *f = g_fopen(fn, "r"); | |
84 | g_free ( fn ); | |
85 | ||
86 | if ( f ) { | |
87 | gchar buf[4096]; | |
88 | gchar *key = NULL; | |
89 | gchar *val = NULL; | |
90 | VikLayerTypedParamData *oldval, *newval; | |
91 | while ( ! feof (f) ) { | |
92 | if (fgets(buf,sizeof(buf),f) == NULL) | |
93 | break; | |
94 | if ( split_string_from_file_on_equals ( buf, &key, &val ) ) { | |
95 | // if it's not in there, ignore it | |
96 | oldval = g_hash_table_lookup ( values, key ); | |
97 | if ( ! oldval ) { | |
98 | g_free(key); | |
99 | g_free(val); | |
100 | continue; | |
101 | } | |
102 | ||
103 | // otherwise change it (you know the type!) | |
104 | // if it's a string list do some funky stuff ... yuck... not yet. | |
105 | if ( oldval->type == VIK_LAYER_PARAM_STRING_LIST ) | |
106 | g_critical ( "Param strings not implemented in preferences"); // fake it | |
107 | ||
108 | newval = vik_layer_data_typed_param_copy_from_string ( oldval->type, val ); | |
109 | g_hash_table_insert ( values, key, newval ); | |
110 | ||
111 | g_free(key); | |
112 | g_free(val); | |
113 | // change value | |
114 | } | |
115 | } | |
116 | fclose(f); | |
117 | f = NULL; | |
118 | return TRUE; | |
119 | } | |
120 | return FALSE; | |
121 | } | |
122 | ||
123 | static void preferences_run_setparam ( gpointer notused, guint16 i, VikLayerParamData data, VikLayerParam *vlparams ) | |
124 | { | |
125 | // Don't change stored pointer values | |
126 | if ( vlparams[i].type == VIK_LAYER_PARAM_PTR ) | |
127 | return; | |
128 | if ( vlparams[i].type == VIK_LAYER_PARAM_STRING_LIST ) | |
129 | g_critical ( "Param strings not implemented in preferences"); //fake it | |
130 | g_hash_table_insert ( values, (gchar *)(vlparams[i].name), vik_layer_typed_param_data_copy_from_data(vlparams[i].type, data) ); | |
131 | } | |
132 | ||
133 | /* Allow preferences to be manipulated externally */ | |
134 | void a_preferences_run_setparam ( VikLayerParamData data, VikLayerParam *vlparams ) | |
135 | { | |
136 | preferences_run_setparam (NULL, 0, data, vlparams); | |
137 | } | |
138 | ||
139 | static VikLayerParamData preferences_run_getparam ( gpointer notused, guint16 i, gboolean notused2 ) | |
140 | { | |
141 | VikLayerTypedParamData *val = (VikLayerTypedParamData *) g_hash_table_lookup ( values, ((VikLayerParam *)g_ptr_array_index(params,i))->name ); | |
142 | g_assert ( val != NULL ); | |
143 | if ( val->type == VIK_LAYER_PARAM_STRING_LIST ) | |
144 | g_critical ( "Param strings not implemented in preferences"); //fake it | |
145 | return val->data; | |
146 | } | |
147 | ||
148 | /** | |
149 | * a_preferences_save_to_file: | |
150 | * | |
151 | * Returns: TRUE on success | |
152 | */ | |
153 | gboolean a_preferences_save_to_file() | |
154 | { | |
155 | gchar *fn = g_build_filename(a_get_viking_dir(), VIKING_PREFS_FILE, NULL); | |
156 | ||
157 | FILE *f = g_fopen(fn, "w"); | |
158 | /* Since preferences files saves OSM login credentials, | |
159 | * it'll be better to store it in secret. | |
160 | */ | |
161 | if ( g_chmod(fn, 0600) != 0 ) | |
162 | g_warning ( "%s: Failed to set permissions on %s", __FUNCTION__, fn ); | |
163 | g_free ( fn ); | |
164 | ||
165 | if ( f ) { | |
166 | VikLayerParam *param; | |
167 | VikLayerTypedParamData *val; | |
168 | int i; | |
169 | for ( i = 0; i < params->len; i++ ) { | |
170 | param = (VikLayerParam *) g_ptr_array_index(params,i); | |
171 | val = (VikLayerTypedParamData *) g_hash_table_lookup ( values, param->name ); | |
172 | if ( val ) | |
173 | if ( val->type != VIK_LAYER_PARAM_PTR ) | |
174 | file_write_layer_param ( f, param->name, val->type, val->data ); | |
175 | } | |
176 | fclose(f); | |
177 | f = NULL; | |
178 | return TRUE; | |
179 | } | |
180 | ||
181 | return FALSE; | |
182 | } | |
183 | ||
184 | ||
185 | void a_preferences_show_window(GtkWindow *parent) { | |
186 | //VikLayerParamData *a_uibuilder_run_dialog ( GtkWindow *parent, VikLayerParam \*params, // guint16 params_count, gchar **groups, guint8 groups_count, // VikLayerParamData *params_defaults ) | |
187 | // TODO: THIS IS A MAJOR HACKAROUND, but ok when we have only a couple preferences. | |
188 | gint params_count = params->len; | |
189 | VikLayerParam *contiguous_params = g_new(VikLayerParam,params_count); | |
190 | int i; | |
191 | for ( i = 0; i < params->len; i++ ) { | |
192 | contiguous_params[i] = *((VikLayerParam*)(g_ptr_array_index(params,i))); | |
193 | } | |
194 | loaded = TRUE; | |
195 | preferences_load_from_file(); | |
196 | if ( a_uibuilder_properties_factory ( _("Preferences"), parent, contiguous_params, params_count, | |
197 | (gchar **) groups_names->pdata, groups_names->len, // groups, groups_count, // groups? what groups?! | |
198 | (gboolean (*) (gpointer,guint16,VikLayerParamData,gpointer,gboolean)) preferences_run_setparam, | |
199 | NULL /* not used */, contiguous_params, | |
200 | preferences_run_getparam, NULL, NULL /* not used */ ) ) { | |
201 | a_preferences_save_to_file(); | |
202 | } | |
203 | g_free ( contiguous_params ); | |
204 | } | |
205 | ||
206 | void a_preferences_register(VikLayerParam *pref, VikLayerParamData defaultval, const gchar *group_key ) | |
207 | { | |
208 | // All preferences should be registered before loading | |
209 | if ( loaded ) | |
210 | g_critical ( "REGISTERING preference %s after LOADING from " VIKING_PREFS_FILE, pref->name ); | |
211 | /* copy value */ | |
212 | VikLayerParam *newpref = g_new(VikLayerParam,1); | |
213 | *newpref = *pref; | |
214 | VikLayerTypedParamData *newval = vik_layer_typed_param_data_copy_from_data(pref->type, defaultval); | |
215 | if ( group_key ) | |
216 | newpref->group = preferences_groups_key_to_index ( group_key ); | |
217 | ||
218 | g_ptr_array_add ( params, newpref ); | |
219 | g_hash_table_insert ( values, (gchar *)pref->name, newval ); | |
220 | } | |
221 | ||
222 | void a_preferences_init() | |
223 | { | |
224 | preferences_groups_init(); | |
225 | ||
226 | /* not copied */ | |
227 | params = g_ptr_array_new (); | |
228 | ||
229 | /* key not copied (same ptr as in pref), actual param data yes */ | |
230 | values = g_hash_table_new_full ( g_str_hash, g_str_equal, NULL, vik_layer_typed_param_data_free); | |
231 | ||
232 | loaded = FALSE; | |
233 | } | |
234 | ||
235 | void a_preferences_uninit() | |
236 | { | |
237 | preferences_groups_uninit(); | |
238 | ||
239 | g_ptr_array_foreach ( params, (GFunc)g_free, NULL ); | |
240 | g_ptr_array_free ( params, TRUE ); | |
241 | g_hash_table_destroy ( values ); | |
242 | } | |
243 | ||
244 | ||
245 | ||
246 | VikLayerParamData *a_preferences_get(const gchar *key) | |
247 | { | |
248 | if ( ! loaded ) { | |
249 | g_debug ( "%s: First time: %s\n", __FUNCTION__, key ); | |
250 | /* since we can't load the file in a_preferences_init (no params registered yet), | |
251 | * do it once before we get the first key. */ | |
252 | preferences_load_from_file(); | |
253 | loaded = TRUE; | |
254 | } | |
255 | return g_hash_table_lookup ( values, key ); | |
256 | } |