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>
25 #include <glib/gstdio.h>
26 #include "preferences.h"
32 // TODO: share code in file reading
33 // TODO: remove hackaround in show_window
35 #define VIKING_PREFS_FILE "viking.prefs"
37 static GPtrArray *params;
38 static GHashTable *values;
41 /************ groups *********/
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.
46 static void preferences_groups_init()
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 );
52 static void preferences_groups_uninit()
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 );
59 void a_preferences_register_group ( const gchar *key, const gchar *name )
61 if ( g_hash_table_lookup ( groups_keys_to_indices, key ) )
62 g_critical("Duplicate preferences group keys");
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 */
69 /* returns -1 if not found. */
70 static gint16 preferences_groups_key_to_index( const gchar *key )
72 gint index = GPOINTER_TO_INT ( g_hash_table_lookup ( groups_keys_to_indices, key ) );
74 return VIK_LAYER_GROUP_NONE; /* which should be -1 anyway */
75 return (gint16) (index - 1);
78 /*****************************/
80 static gboolean preferences_load_from_file()
82 gchar *fn = g_build_filename(a_get_viking_dir(), VIKING_PREFS_FILE, NULL);
83 FILE *f = g_fopen(fn, "r");
89 VikLayerTypedParamData *oldval, *newval;
90 while ( ! feof (f) ) {
91 if (fgets(buf,sizeof(buf),f) == NULL)
93 if ( split_string_from_file_on_equals ( buf, &key, &val ) ) {
94 // if it's not in there, ignore it
95 oldval = g_hash_table_lookup ( values, key );
102 // otherwise change it (you know the type!)
103 // if it's a string list do some funky stuff ... yuck... not yet.
104 if ( oldval->type == VIK_LAYER_PARAM_STRING_LIST )
105 g_critical ( "Param strings not implemented in preferences"); // fake it
107 newval = vik_layer_data_typed_param_copy_from_string ( oldval->type, val );
108 g_hash_table_insert ( values, key, newval );
122 static void preferences_run_setparam ( gpointer notused, guint16 i, VikLayerParamData data, VikLayerParam *vlparams )
124 // Don't change stored pointer values
125 if ( vlparams[i].type == VIK_LAYER_PARAM_PTR )
127 if ( vlparams[i].type == VIK_LAYER_PARAM_STRING_LIST )
128 g_critical ( "Param strings not implemented in preferences"); //fake it
129 g_hash_table_insert ( values, (gchar *)(vlparams[i].name), vik_layer_typed_param_data_copy_from_data(vlparams[i].type, data) );
132 /* Allow preferences to be manipulated externally */
133 void a_preferences_run_setparam ( VikLayerParamData data, VikLayerParam *vlparams )
135 preferences_run_setparam (NULL, 0, data, vlparams);
138 static VikLayerParamData preferences_run_getparam ( gpointer notused, guint16 i, gboolean notused2 )
140 VikLayerTypedParamData *val = (VikLayerTypedParamData *) g_hash_table_lookup ( values, ((VikLayerParam *)g_ptr_array_index(params,i))->name );
141 g_assert ( val != NULL );
142 if ( val->type == VIK_LAYER_PARAM_STRING_LIST )
143 g_critical ( "Param strings not implemented in preferences"); //fake it
148 * a_preferences_save_to_file:
150 * Returns: TRUE on success
152 gboolean a_preferences_save_to_file()
154 gchar *fn = g_build_filename(a_get_viking_dir(), VIKING_PREFS_FILE, NULL);
156 // TODO: error checking
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.
165 VikLayerParam *param;
166 VikLayerTypedParamData *val;
168 for ( i = 0; i < params->len; i++ ) {
169 param = (VikLayerParam *) g_ptr_array_index(params,i);
170 val = (VikLayerTypedParamData *) g_hash_table_lookup ( values, param->name );
172 if ( val->type != VIK_LAYER_PARAM_PTR )
173 file_write_layer_param ( f, param->name, val->type, val->data );
184 void a_preferences_show_window(GtkWindow *parent) {
185 //VikLayerParamData *a_uibuilder_run_dialog ( GtkWindow *parent, VikLayerParam \*params, // guint16 params_count, gchar **groups, guint8 groups_count, // VikLayerParamData *params_defaults )
186 // TODO: THIS IS A MAJOR HACKAROUND, but ok when we have only a couple preferences.
187 gint params_count = params->len;
188 VikLayerParam *contiguous_params = g_new(VikLayerParam,params_count);
190 for ( i = 0; i < params->len; i++ ) {
191 contiguous_params[i] = *((VikLayerParam*)(g_ptr_array_index(params,i)));
194 preferences_load_from_file();
195 if ( a_uibuilder_properties_factory ( _("Preferences"), parent, contiguous_params, params_count,
196 (gchar **) groups_names->pdata, groups_names->len, // groups, groups_count, // groups? what groups?!
197 (gboolean (*) (gpointer,guint16,VikLayerParamData,gpointer,gboolean)) preferences_run_setparam,
198 NULL /* not used */, contiguous_params,
199 preferences_run_getparam, NULL, NULL /* not used */ ) ) {
200 a_preferences_save_to_file();
202 g_free ( contiguous_params );
205 void a_preferences_register(VikLayerParam *pref, VikLayerParamData defaultval, const gchar *group_key )
207 // All preferences should be registered before loading
209 g_critical ( "REGISTERING preference %s after LOADING from " VIKING_PREFS_FILE, pref->name );
211 VikLayerParam *newpref = g_new(VikLayerParam,1);
213 VikLayerTypedParamData *newval = vik_layer_typed_param_data_copy_from_data(pref->type, defaultval);
215 newpref->group = preferences_groups_key_to_index ( group_key );
217 g_ptr_array_add ( params, newpref );
218 g_hash_table_insert ( values, (gchar *)pref->name, newval );
221 void a_preferences_init()
223 preferences_groups_init();
226 params = g_ptr_array_new ();
228 /* key not copied (same ptr as in pref), actual param data yes */
229 values = g_hash_table_new_full ( g_str_hash, g_str_equal, NULL, vik_layer_typed_param_data_free);
234 void a_preferences_uninit()
236 preferences_groups_uninit();
238 g_ptr_array_foreach ( params, (GFunc)g_free, NULL );
239 g_ptr_array_free ( params, TRUE );
240 g_hash_table_destroy ( values );
245 VikLayerParamData *a_preferences_get(const gchar *key)
248 g_debug ( "%s: First time: %s\n", __FUNCTION__, key );
249 /* since we can't load the file in a_preferences_init (no params registered yet),
250 * do it once before we get the first key. */
251 preferences_load_from_file();
254 return g_hash_table_lookup ( values, key );