2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2007, Evan Battaglia <gtoevan@gmx.net>
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.
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.
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
22 #include <glib/gi18n.h>
26 #include <glib/gstdio.h>
27 #include "preferences.h"
31 // TODO: register_group
33 // TODO: share code in file reading
34 // TODO: remove hackaround in show_window
35 // TODO: move typeddata to uibuilder, make it more used & general, it's a "prettier" solution methinks
36 // maybe this wasn't such a good idea...
38 #define VIKING_PREFS_FILE "viking.prefs"
40 #define TEST_BOOLEAN(str) (! ((str)[0] == '\0' || (str)[0] == '0' || (str)[0] == 'n' || (str)[0] == 'N' || (str)[0] == 'f' || (str)[0] == 'F') )
42 static GPtrArray *params;
43 static GHashTable *values;
46 /************ groups *********/
48 static GPtrArray *groups_names;
49 static GHashTable *groups_keys_to_indices; // contains gint, NULL (0) is not found, instead 1 is used for 0, 2 for 1, etc.
51 static void preferences_groups_init()
53 groups_names = g_ptr_array_new();
54 groups_keys_to_indices = g_hash_table_new_full ( g_str_hash, g_str_equal, g_free, NULL );
57 static void preferences_groups_uninit()
59 g_ptr_array_free ( groups_names, TRUE );
60 g_hash_table_destroy ( groups_keys_to_indices );
63 void a_preferences_register_group ( const gchar *key, const gchar *name )
65 if ( g_hash_table_lookup ( groups_keys_to_indices, key ) )
66 g_critical("Duplicate preferences group keys");
68 g_ptr_array_add ( groups_names, g_strdup(name) );
69 g_hash_table_insert ( groups_keys_to_indices, g_strdup(key), GINT_TO_POINTER ( (gint) groups_names->len ) ); /* index + 1 */
73 /* returns -1 if not found. */
74 static gint16 preferences_groups_key_to_index( const gchar *key )
76 gint index = GPOINTER_TO_INT ( g_hash_table_lookup ( groups_keys_to_indices, key ) );
78 return VIK_LAYER_GROUP_NONE; /* which should be -1 anyway */
79 return (gint16) (index - 1);
82 /*****************************/
87 VikLayerParamData data;
89 gpointer freeme; // because data.s is const and the compiler complains
90 } VikLayerTypedParamData;
92 void layer_typed_param_data_free(gpointer p)
94 VikLayerTypedParamData *val = (VikLayerTypedParamData *)p;
95 switch ( val->type ) {
96 case VIK_LAYER_PARAM_STRING:
98 g_free ( val->freeme );
100 /* TODO: APPLICABLE TO US? NOTE: string layer works auniquely: data.sl should NOT be free'd when
101 * the internals call get_param -- i.e. it should be managed w/in the layer.
102 * The value passed by the internals into set_param should also be managed
103 * by the layer -- i.e. free'd by the layer.
105 case VIK_LAYER_PARAM_STRING_LIST:
106 g_critical ( "Param strings not implemented in preferences"); //fake it
112 VikLayerTypedParamData *layer_typed_param_data_copy_from_data(guint8 type, VikLayerParamData val) {
113 VikLayerTypedParamData *newval = g_new(VikLayerTypedParamData,1);
116 switch ( newval->type ) {
117 case VIK_LAYER_PARAM_STRING: {
118 gchar *s = g_strdup(newval->data.s);
123 /* TODO: APPLICABLE TO US? NOTE: string layer works auniquely: data.sl should NOT be free'd when
124 * the internals call get_param -- i.e. it should be managed w/in the layer.
125 * The value passed by the internals into set_param should also be managed
126 * by the layer -- i.e. free'd by the layer.
128 case VIK_LAYER_PARAM_STRING_LIST:
129 g_critical ( "Param strings not implemented in preferences"); //fake it
135 /* TODO: share this code with file.c */
136 VikLayerTypedParamData *layer_data_typed_param_copy_from_string ( guint8 type, const gchar *str )
138 g_assert ( type != VIK_LAYER_PARAM_STRING_LIST );
139 VikLayerTypedParamData *rv = g_new(VikLayerTypedParamData,1);
143 case VIK_LAYER_PARAM_DOUBLE: rv->data.d = strtod(str, NULL); break;
144 case VIK_LAYER_PARAM_UINT: rv->data.u = strtoul(str, NULL, 10); break;
145 case VIK_LAYER_PARAM_INT: rv->data.i = strtol(str, NULL, 10); break;
146 case VIK_LAYER_PARAM_BOOLEAN: rv->data.b = TEST_BOOLEAN(str); break;
147 case VIK_LAYER_PARAM_COLOR: memset(&(rv->data.c), 0, sizeof(rv->data.c)); /* default: black */
148 gdk_color_parse ( str, &(rv->data.c) ); break;
149 /* STRING or STRING_LIST -- if STRING_LIST, just set param to add a STRING */
151 gchar *s = g_strdup(str);
161 /* MAKES A COPY OF THE KEY!!! */
162 static gboolean preferences_load_parse_param(gchar *buf, gchar **key, gchar **val )
167 // comments, special characters in viking file format
168 if ( buf == NULL || buf[0] == '\0' || buf[0] == '~' || buf[0] == '=' || buf[0] == '#' )
170 eq_pos = strchr ( buf, '=' );
173 *key = g_strndup ( buf, eq_pos - buf );
177 if ( (*val)[len - 1] == '\n' )
178 (*val) [ len - 1 ] = '\0'; /* cut off newline */
182 static gboolean preferences_load_from_file()
184 gchar *fn = g_build_filename(a_get_viking_dir(), VIKING_PREFS_FILE, NULL);
185 FILE *f = g_fopen(fn, "r");
191 VikLayerTypedParamData *oldval, *newval;
192 while ( ! feof (f) ) {
193 if (fgets(buf,sizeof(buf),f) == NULL)
195 if ( preferences_load_parse_param(buf, &key, &val ) ) {
196 // if it's not in there, ignore it
197 oldval = g_hash_table_lookup ( values, key );
203 // otherwise change it (you know the type!)
204 // if it's a string list do some funky stuff ... yuck... not yet.
205 if ( oldval->type == VIK_LAYER_PARAM_STRING_LIST )
206 g_critical ( "Param strings not implemented in preferences"); // fake it
208 newval = layer_data_typed_param_copy_from_string ( oldval->type, val );
209 g_hash_table_insert ( values, key, newval );
223 static void preferences_run_setparam ( gpointer notused, guint16 i, VikLayerParamData data, VikLayerParam *params )
225 if ( params[i].type == VIK_LAYER_PARAM_STRING_LIST )
226 g_critical ( "Param strings not implemented in preferences"); //fake it
227 g_hash_table_insert ( values, (gchar *)(params[i].name), layer_typed_param_data_copy_from_data(params[i].type, data) );
230 /* Allow preferences to be manipulated externally */
231 void a_preferences_run_setparam ( VikLayerParamData data, VikLayerParam *params )
233 preferences_run_setparam (NULL, 0, data, params);
236 static VikLayerParamData preferences_run_getparam ( gpointer notused, guint16 i, gboolean notused2 )
238 VikLayerTypedParamData *val = (VikLayerTypedParamData *) g_hash_table_lookup ( values, ((VikLayerParam *)g_ptr_array_index(params,i))->name );
239 g_assert ( val != NULL );
240 if ( val->type == VIK_LAYER_PARAM_STRING_LIST )
241 g_critical ( "Param strings not implemented in preferences"); //fake it
245 /* TRUE on success */
246 gboolean a_preferences_save_to_file()
248 gchar *fn = g_build_filename(a_get_viking_dir(), VIKING_PREFS_FILE, NULL);
250 // TODO: error checking
251 FILE *f = g_fopen(fn, "w");
252 /* Since preferences files saves OSM login credentials,
253 * it'll be better to store it in secret.
259 VikLayerParam *param;
260 VikLayerTypedParamData *val;
262 for ( i = 0; i < params->len; i++ ) {
263 param = (VikLayerParam *) g_ptr_array_index(params,i);
264 val = (VikLayerTypedParamData *) g_hash_table_lookup ( values, param->name );
265 g_assert ( val != NULL );
266 file_write_layer_param ( f, param->name, val->type, val->data );
277 void a_preferences_show_window(GtkWindow *parent) {
278 //VikLayerParamData *a_uibuilder_run_dialog ( GtkWindow *parent, VikLayerParam \*params, // guint16 params_count, gchar **groups, guint8 groups_count, // VikLayerParamData *params_defaults )
279 // TODO: THIS IS A MAJOR HACKAROUND, but ok when we have only a couple preferences.
280 gint params_count = params->len;
281 VikLayerParam *contiguous_params = g_new(VikLayerParam,params_count);
283 for ( i = 0; i < params->len; i++ ) {
284 contiguous_params[i] = *((VikLayerParam*)(g_ptr_array_index(params,i)));
287 preferences_load_from_file();
288 if ( a_uibuilder_properties_factory ( _("Preferences"), parent, contiguous_params, params_count,
289 (gchar **) groups_names->pdata, groups_names->len, // groups, groups_count, // groups? what groups?!
290 (gboolean (*) (gpointer,guint16,VikLayerParamData,gpointer,gboolean)) preferences_run_setparam,
291 NULL /* not used */, contiguous_params,
292 preferences_run_getparam, NULL /* not used */ ) ) {
293 a_preferences_save_to_file();
295 g_free ( contiguous_params );
298 void a_preferences_register(VikLayerParam *pref, VikLayerParamData defaultval, const gchar *group_key )
301 VikLayerParam *newpref = g_new(VikLayerParam,1);
303 VikLayerTypedParamData *newval = layer_typed_param_data_copy_from_data(pref->type, defaultval);
305 newpref->group = preferences_groups_key_to_index ( group_key );
307 g_ptr_array_add ( params, newpref );
308 g_hash_table_insert ( values, (gchar *)pref->name, newval );
311 void a_preferences_init()
313 preferences_groups_init();
316 params = g_ptr_array_new ();
318 /* key not copied (same ptr as in pref), actual param data yes */
319 values = g_hash_table_new_full ( g_str_hash, g_str_equal, NULL, layer_typed_param_data_free);
324 void a_preferences_uninit()
326 preferences_groups_uninit();
328 g_ptr_array_free ( params, TRUE );
329 g_hash_table_destroy ( values );
334 VikLayerParamData *a_preferences_get(const gchar *key)
337 /* since we can't load the file in a_preferences_init (no params registered yet),
338 * do it once before we get the first key. */
339 preferences_load_from_file();
342 return g_hash_table_lookup ( values, key );