trunk/src/settings.c

/*
 * Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
 *
 * This file is part of GPXView.
 *
 * GPXView is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * GPXView is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GPXView.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "gpxview.h"
#include <math.h>

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
#include <hildon/hildon-check-button.h>
#endif

typedef struct {
  GtkWidget *cbox_gps;
  GtkWidget *loc;
} settings_dialog_state_t;

/* ------------------------ special gui elements for fremantle ------------------ */

static GtkWidget *toggle_button_new_with_label(char *label) {
#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  return gtk_check_button_new_with_label(label);
#else
  GtkWidget *cbut = gtk_toggle_button_new_with_label(label);
  hildon_gtk_widget_set_theme_size(cbut, 
           (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH));
  gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(cbut), FALSE);
  return cbut;
#endif
}

static void toggle_button_set_active(GtkWidget *button, gboolean active) {
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), active);
}

static gboolean toggle_button_get_active(GtkWidget *button) {
  return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
}

static GtkWidget *check_button_new_with_label(char *label) {
#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  return gtk_check_button_new_with_label(label);
#else
  GtkWidget *cbut = 
    hildon_check_button_new(HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH);
  gtk_button_set_label(GTK_BUTTON(cbut), label);
  return cbut;
#endif
}

static void check_button_set_active(GtkWidget *button, gboolean active) {
#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), active);
#else
  hildon_check_button_set_active(HILDON_CHECK_BUTTON(button), active);
#endif
}

static gboolean check_button_get_active(GtkWidget *button) {
#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
#else
  return hildon_check_button_get_active(HILDON_CHECK_BUTTON(button));
#endif
}

/* Our usual callback function */
static void settings_update(GtkWidget *widget, gpointer data) {
  settings_dialog_state_t *hstate = (settings_dialog_state_t *)data;

  if(check_button_get_active(hstate->cbox_gps)) 
    gtk_widget_set_sensitive(hstate->loc, FALSE);
  else
    gtk_widget_set_sensitive(hstate->loc, TRUE);
}

typedef struct {
  appdata_t *appdata;
  GtkWidget *settings_dialog;
  GtkWidget *view;
  GtkListStore *store;
  GtkWidget *but_add, *but_edit, *but_remove;
  gboolean changed;
} location_context_t;

enum {
  LOCATION_COL_NAME = 0,
  LOCATION_COL_LAT,
  LOCATION_COL_LON,
  LOCATION_COL_DATA,
  LOCATION_NUM_COLS
};

static void location_select(location_context_t *context) {
  GtkTreeSelection *selection = 
    gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view));

  GtkTreePath *path = gtk_tree_path_new_from_indices(
                            context->appdata->active_location, -1);

  /* Modify a particular row */
  GtkTreeIter iter;
  gtk_tree_model_get_iter(GTK_TREE_MODEL(context->store), &iter, path);
  gtk_tree_selection_select_iter(selection, &iter);
  gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(context->view), 
                               path, NULL, TRUE, 0, 0);
  gtk_tree_path_free(path);

  if(!context->appdata->active_location && context->but_remove) 
    gtk_widget_set_sensitive(context->but_remove,  FALSE);
}

#ifdef ENABLE_MAEMO_MAPPER
#include "dbus.h"

typedef struct {
  appdata_t *appdata;
  pos_t pos;
  GtkWidget *import_button;
  GtkWidget *export_button;
  GtkWidget *lat, *lon;
} mm_context_t;

static void on_mm_import_clicked(GtkButton *button, gpointer data) {
  char str[32];
  mm_context_t *context = (mm_context_t*)data;

  pos_lat_str(str, sizeof(str), context->appdata->mmpos.lat);
  gtk_entry_set_text(GTK_ENTRY(context->lat), str);
  pos_lon_str(str, sizeof(str), context->appdata->mmpos.lon);
  gtk_entry_set_text(GTK_ENTRY(context->lon), str);
}

static void on_mm_export_clicked(GtkButton *button, gpointer data) {
  mm_context_t *context = (mm_context_t*)data;

  /* update position from entries */
  pos_t pos;
  pos.lat = lat_get(context->lat);
  pos.lon = lon_get(context->lon);

  g_assert(!isnan(pos.lat) && !isnan(pos.lon));

  dbus_mm_set_position(context->appdata, &pos);
}

static void callback_modified_pos(GtkWidget *widget, gpointer data ) {
  mm_context_t *context = (mm_context_t*)data;

  gboolean valid =
    (!isnan(lat_get(context->lat))) && (!isnan(lon_get(context->lon)));

  gtk_widget_set_sensitive(context->export_button, valid);
}
#endif

static void on_location_edit(GtkWidget *button, location_context_t *context) {
  GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Edit Location"),
          GTK_WINDOW(context->settings_dialog), GTK_DIALOG_MODAL,
          GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
          GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL);

#if defined(USE_MAEMO) && defined(HILDON_HELP)
  hildon_help_dialog_help_enable(GTK_DIALOG(dialog), 
                 HELP_ID_LOCEDIT, context->appdata->osso_context);
#endif

  printf("edit, active = %d\n", context->appdata->active_location);

  location_t *loc = NULL;
  if(context->appdata->active_location) {
    loc = context->appdata->location;
    int i = context->appdata->active_location-1;
    while(i--) {
      g_assert(loc->next);
      loc = loc->next;
    }
    printf("location edit for %s\n", loc->name);
  } else
    printf("location edit for Home\n");

#ifdef ENABLE_MAEMO_MAPPER
  mm_context_t mm_context;
#else
  GtkWidget *lat, *lon;
#endif

  GtkWidget *label, *name;
  GtkWidget *table = gtk_table_new(2, 3, FALSE);

  gtk_table_attach_defaults(GTK_TABLE(table),
                    label = gtk_label_new(_("Name:")), 0, 1, 0, 1);
  gtk_misc_set_alignment(GTK_MISC(label), 1.f, 0.5f);
  gtk_table_attach_defaults(GTK_TABLE(table), 
                    name = gtk_entry_new(), 1, 2, 0, 1);

  pos_t pos;
  if(loc) pos = loc->pos;
  else    pos = context->appdata->home;

  /* avoid to use "nan" as the user will then not be displayed a nice */
  /* preset value to alter */
  if(isnan(pos.lat)) pos.lat = 0;
  if(isnan(pos.lon)) pos.lon = 0;

  gtk_table_attach_defaults(GTK_TABLE(table),
                   label = gtk_label_new(_("Latitude:")), 0, 1, 1, 2);
  gtk_misc_set_alignment(GTK_MISC(label), 1.f, 0.5f);
#ifdef ENABLE_MAEMO_MAPPER
  gtk_table_attach_defaults(GTK_TABLE(table), 
                    mm_context.lat = lat_entry_new(pos.lat), 1, 2, 1, 2);
  g_signal_connect(G_OBJECT(mm_context.lat), "changed",
                   G_CALLBACK(callback_modified_pos), &mm_context);
#else
  gtk_table_attach_defaults(GTK_TABLE(table), 
                    lat = lat_entry_new(pos.lat), 1, 2, 1, 2);
#endif

  
  gtk_table_attach_defaults(GTK_TABLE(table),
                    label = gtk_label_new(_("Longitude:")), 0, 1, 2, 3);
  gtk_misc_set_alignment(GTK_MISC(label), 1.f, 0.5f);
#ifdef ENABLE_MAEMO_MAPPER
  gtk_table_attach_defaults(GTK_TABLE(table),
                   mm_context.lon = lon_entry_new(pos.lon), 1, 2, 2, 3);
  g_signal_connect(G_OBJECT(mm_context.lon), "changed",
                   G_CALLBACK(callback_modified_pos), &mm_context);
#else
  gtk_table_attach_defaults(GTK_TABLE(table),
                   lon = lon_entry_new(pos.lon), 1, 2, 2, 3);
#endif

  if(loc) 
    gtk_entry_set_text(GTK_ENTRY(name), loc->name);
  else {
    gtk_entry_set_text(GTK_ENTRY(name), _("Home"));
    gtk_widget_set_sensitive(GTK_WIDGET(name), FALSE);
  }

#ifdef ENABLE_MAEMO_MAPPER
  mm_context.appdata = context->appdata;
  if(loc) mm_context.pos = loc->pos;
  else    mm_context.pos = context->appdata->home;

  mm_context.import_button = gtk_button_new();
  gtk_button_set_image(GTK_BUTTON(mm_context.import_button), 
                       icon_get_widget(ICON_MISC, 3));
  gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
                    mm_context.import_button);
  gtk_signal_connect(GTK_OBJECT(mm_context.import_button), "clicked",
                     (GtkSignalFunc)on_mm_import_clicked, &mm_context);
  
  if(!context->appdata->mmpos_valid) 
    gtk_widget_set_sensitive(mm_context.import_button,  FALSE);
  
  mm_context.export_button = gtk_button_new();
  gtk_button_set_image(GTK_BUTTON(mm_context.export_button), 
                       icon_get_widget(ICON_MISC, 0));
  gtk_signal_connect(GTK_OBJECT(mm_context.export_button), "clicked",
                     (GtkSignalFunc)on_mm_export_clicked, &mm_context);
  gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 
                    mm_context.export_button);
#endif

  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), table);

  gtk_widget_show_all(dialog);

  if(GTK_RESPONSE_ACCEPT == gtk_dialog_run(GTK_DIALOG(dialog))) {
    pos_t pos;

#ifdef ENABLE_MAEMO_MAPPER
    pos.lat = lat_get(mm_context.lat);
    pos.lon = lon_get(mm_context.lon);
#else
    pos.lat = lat_get(lat);
    pos.lon = lon_get(lon);
#endif

    if(isnan(pos.lat) || isnan(pos.lon)) 
      errorf(_("Ignoring invalid position"));
    else {
      char *p = (char*)gtk_entry_get_text(GTK_ENTRY(name));
      printf("%s is at %f/%f\n", p, pos.lat, pos.lon);

      /* now the list has to be re-done */
      GtkTreePath *path = gtk_tree_path_new_from_indices(
                         context->appdata->active_location, -1);
      
      /* Modify a particular row or create a new one if that doesn't exist */
      GtkTreeIter iter;
      if(!gtk_tree_model_get_iter(GTK_TREE_MODEL(context->store),&iter,path)) 
        gtk_list_store_append(context->store, &iter);
      
      char lat_str[32], lon_str[32];
      pos_lat_str(lat_str, sizeof(lat_str), pos.lat);
      pos_lon_str(lon_str, sizeof(lon_str), pos.lon);
      
      if(loc) {
        free(loc->name);
        loc->name = strdup(p);
        loc->pos.lat = pos.lat;
        loc->pos.lon = pos.lon;
        
        gtk_list_store_set(context->store, &iter,
                           LOCATION_COL_NAME, loc->name,
                           LOCATION_COL_LAT, lat_str,
                         LOCATION_COL_LON, lon_str,
                           LOCATION_COL_DATA, loc,
                           -1);
        
      } else {
        context->appdata->home.lat = pos.lat;
        context->appdata->home.lon = pos.lon;      
        
        gtk_list_store_set(context->store, &iter,
                           LOCATION_COL_LAT, lat_str,
                           LOCATION_COL_LON, lon_str,
                           -1);
      }
      context->changed = TRUE;
    }
  }
  gtk_widget_destroy(dialog);
}

static void on_location_add(GtkWidget *button, location_context_t *context) {
  location_t **loc = &context->appdata->location;
  int prev_active = context->appdata->active_location;

  int i = 1;
  while(*loc) {
    loc = &(*loc)->next;
    i++;
  }

  *loc = g_new0(location_t, 1);
  if(!*loc) {
    errorf(_("Out of memory"));
    return;
  }

  (*loc)->name = strdup(_("<new>"));
#if 0
  (*loc)->pos.lat = DEFAULT_LAT;
  (*loc)->pos.lon = DEFAULT_LON;
#endif

  context->changed = FALSE;
  context->appdata->active_location = i;
  on_location_edit(button, context);

  if(context->changed) 
    location_select(context);
  else {
    /* remove newly attached  entry and select previous one */
    location_t *tmp = *loc;
    *loc = NULL;
    free(tmp->name);
    free(tmp);

    context->appdata->active_location = prev_active;
  }
}

static void on_location_remove(GtkWidget *but, location_context_t *context) {
  GtkTreeSelection *selection;
  GtkTreeModel     *model;
  GtkTreeIter       iter;

  selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view));
  if(gtk_tree_selection_get_selected(selection, &model, &iter)) {
    location_t *loc;
    gtk_tree_model_get(model, &iter, LOCATION_COL_DATA, &loc, -1);

    g_assert(loc);

    /* de-chain */
    location_t **prev = &context->appdata->location;
    while(*prev != loc) prev = &((*prev)->next);
    *prev = loc->next;

    /* free location itself */
    if(loc->name) free(loc->name);
    free(loc);

    /* and remove from store */
    gtk_list_store_remove(GTK_LIST_STORE(model), &iter);
  }
  
  /* disable remove button */
  gtk_widget_set_sensitive(context->but_remove,  FALSE);
  /* select the first entry */

  context->appdata->active_location = 0;
  location_select(context);
}

static gboolean
view_selection_func(GtkTreeSelection *selection, GtkTreeModel *model,
                     GtkTreePath *path, gboolean path_currently_selected,
                     gpointer userdata) {
  location_context_t *context = (location_context_t*)userdata;
  GtkTreeIter iter;
    
  if(gtk_tree_model_get_iter(model, &iter, path)) {
    g_assert(gtk_tree_path_get_depth(path) == 1);

    /* if the first entry has been selected */
    if(!path_currently_selected && context->but_remove) {
      context->appdata->active_location = gtk_tree_path_get_indices(path)[0];
      gtk_widget_set_sensitive(context->but_remove, 
                               context->appdata->active_location);
    }
  }
  
  return TRUE; /* allow selection state to change */
}

static GtkWidget *location_widget(location_context_t *context) {

  GtkWidget *vbox = gtk_vbox_new(FALSE,3);

#ifndef USE_PANNABLE_AREA
  context->view = gtk_tree_view_new();
#else
  context->view = hildon_gtk_tree_view_new(HILDON_UI_MODE_EDIT);
#endif

  gtk_tree_selection_set_select_function(
         gtk_tree_view_get_selection(GTK_TREE_VIEW(context->view)), 
         view_selection_func, 
         context, NULL);

#ifndef USE_MAEMO
  gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(context->view), FALSE);
#endif

  /* --- "Name" column --- */
  GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
  g_object_set(renderer, "ellipsize", PANGO_ELLIPSIZE_END, NULL );
  GtkTreeViewColumn *column = gtk_tree_view_column_new_with_attributes(
                 _("Name"), renderer, "text", LOCATION_COL_NAME, NULL);
  gtk_tree_view_column_set_expand(column, TRUE);
  gtk_tree_view_insert_column(GTK_TREE_VIEW(context->view), column, -1);

  /* --- "Latitude" column --- */
  renderer = gtk_cell_renderer_text_new();
  //  g_object_set(renderer, "xalign", 1.0, NULL );
  gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
        -1, _("Latitude"), renderer, "text", LOCATION_COL_LAT, NULL);

  /* --- "Longitude" column --- */
  renderer = gtk_cell_renderer_text_new();
  //  g_object_set(renderer, "xalign", 1.0, NULL );
  gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(context->view),
        -1, _("Longitude"), renderer, "text", LOCATION_COL_LON, NULL);

  /* build and fill the store */
  context->store = gtk_list_store_new(LOCATION_NUM_COLS, 
                G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER);

  gtk_tree_view_set_model(GTK_TREE_VIEW(context->view), 
                          GTK_TREE_MODEL(context->store));

  char lat[32], lon[32];
  GtkTreeIter iter;
  
  /* add home position */
  pos_lat_str(lat, sizeof(lat), context->appdata->home.lat);
  pos_lon_str(lon, sizeof(lon), context->appdata->home.lon);
  gtk_list_store_append(context->store, &iter);
  gtk_list_store_set(context->store, &iter,
                     LOCATION_COL_NAME, _("Home"),
                     LOCATION_COL_LAT, lat,
                     LOCATION_COL_LON, lon,
                     LOCATION_COL_DATA, NULL,
                     -1);

  location_t *loc = context->appdata->location;
  while(loc) {
    pos_lat_str(lat, sizeof(lat), loc->pos.lat);
    pos_lon_str(lon, sizeof(lon), loc->pos.lon);

    /* Append a row and fill in some data */
    gtk_list_store_append(context->store, &iter);
    gtk_list_store_set(context->store, &iter,
                       LOCATION_COL_NAME, loc->name,
                       LOCATION_COL_LAT, lat,
                       LOCATION_COL_LON, lon,
                       LOCATION_COL_DATA, loc,
                       -1);
    loc = loc->next;
  }
  
  g_object_unref(context->store);

  /* select the "active" row */
  location_select(context);

  /* put it into a scrolled window */
#ifndef USE_PANNABLE_AREA
  GtkWidget *scrolled_window = gtk_scrolled_window_new (NULL, NULL);
  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), 
                                 GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
  gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), 
                                      GTK_SHADOW_ETCHED_IN);
  gtk_container_add(GTK_CONTAINER(scrolled_window), context->view);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), scrolled_window);
#else
  /* fremantle doesn't use a pannable area here. instead the entire */
  /* settings are inside one big pannable area */
  gtk_box_pack_start_defaults(GTK_BOX(vbox), context->view);
#endif

  /* ------- button box ------------ */

  GtkWidget *hbox = gtk_hbox_new(TRUE,3);
  context->but_add = gtk_button_new_with_label(_("Add"));
#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  hildon_gtk_widget_set_theme_size(context->but_add, 
             (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH));
#endif  
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_add);
  gtk_signal_connect(GTK_OBJECT(context->but_add), "clicked",
                     GTK_SIGNAL_FUNC(on_location_add), context);

  context->but_edit = gtk_button_new_with_label(_("Edit"));
#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  hildon_gtk_widget_set_theme_size(context->but_edit, 
             (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH));
#endif  
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_edit);
  gtk_signal_connect(GTK_OBJECT(context->but_edit), "clicked",
                     GTK_SIGNAL_FUNC(on_location_edit), context);

  context->but_remove = gtk_button_new_with_label(_("Remove"));
#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  hildon_gtk_widget_set_theme_size(context->but_remove, 
             (HILDON_SIZE_FINGER_HEIGHT | HILDON_SIZE_AUTO_WIDTH));
#endif  
  gtk_widget_set_sensitive(context->but_remove, 
                           context->appdata->active_location);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), context->but_remove);
  gtk_signal_connect(GTK_OBJECT(context->but_remove), "clicked",
      GTK_SIGNAL_FUNC(on_location_remove), context);

  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
  return vbox;
}

#ifdef FREMANTLE
static GtkWidget *title_new(char *title) {
  GtkWidget *vbox = gtk_vbox_new(FALSE, 10);
  gtk_box_pack_start_defaults(GTK_BOX(vbox), gtk_label_new(""));
  GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_hseparator_new());
  gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_label_new(title));
  gtk_box_pack_start_defaults(GTK_BOX(hbox), gtk_hseparator_new());
  gtk_box_pack_start_defaults(GTK_BOX(vbox), hbox);
  return vbox;
}
#endif

void cb_menu_settings(GtkWidget *window, gpointer data) {
  appdata_t *appdata = (appdata_t *)data;
  GtkWidget *vbox, *label, *hbox, *ihbox;
  GtkWidget *cbox_imperial;
  settings_dialog_state_t hstate;

  GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Settings"),
            GTK_WINDOW(appdata->window), GTK_DIALOG_MODAL,
            GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
            GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
            NULL);

#if defined(USE_MAEMO) && defined(HILDON_HELP)
  hildon_help_dialog_help_enable(GTK_DIALOG(dialog), 
                 HELP_ID_SETTINGS, appdata->osso_context);
#endif 

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  gtk_window_set_default_size(GTK_WINDOW(dialog), 550, 500);
#endif

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  /* in fremantle all settings reside in one pannable long list */
  GtkWidget *pannable_area = hildon_pannable_area_new();

  /* all elements are inside one long vbox */
  vbox = gtk_vbox_new(FALSE, 0);
#else
  GtkWidget *notebook = gtk_notebook_new();
#endif

  /* ------------------ the "home" widget ---------------------- */
#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  // gtk_box_pack_start_defaults(GTK_BOX(vbox), title_new(_("GPS")));
#else
  vbox = gtk_vbox_new(FALSE, 0);
#endif

  hstate.cbox_gps = check_button_new_with_label(_("Enable GPS"));
  check_button_set_active(hstate.cbox_gps, appdata->use_gps);
  gtk_box_pack_start(GTK_BOX(vbox), hstate.cbox_gps, FALSE, FALSE, 0);

  location_context_t location_context;
  memset(&location_context, 0, sizeof(location_context_t));  
  location_context.appdata = appdata;
  location_context.settings_dialog = dialog;

  /* location widget */
  gtk_box_pack_start(GTK_BOX(vbox), hstate.loc = location_widget(&location_context),
                     TRUE, TRUE, 0);

  settings_update(NULL, &hstate);

  /* Connect the "toggled" signal of the button to our callback */
  gtk_signal_connect (GTK_OBJECT (hstate.cbox_gps), "toggled",
                      GTK_SIGNAL_FUNC(settings_update), (gpointer)&hstate);

#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  gtk_notebook_append_page(GTK_NOTEBOOK(notebook), vbox, 
                           gtk_label_new(_("GPS")));
#endif

  /* ---------------- misc old main menu entries ----------------- */

#ifndef FREMANTLE
  vbox = gtk_vbox_new(FALSE, 0);
#endif

  cbox_imperial = check_button_new_with_label(_("Imperial units"));
  check_button_set_active(cbox_imperial, appdata->imperial);
  gtk_box_pack_start(GTK_BOX(vbox), cbox_imperial, FALSE, FALSE, 0);

  hbox = gtk_hbox_new(FALSE,2);
  gtk_box_pack_start(GTK_BOX(hbox), gtk_label_new(_("Username:")), 
                     FALSE, FALSE, 0);
#ifndef FREMANTLE
  GtkWidget *username = gtk_entry_new();
#else
  GtkWidget *username = hildon_entry_new(HILDON_SIZE_AUTO);  
#endif

  if(appdata->username)
    gtk_entry_set_text(GTK_ENTRY(username), appdata->username);

  gtk_box_pack_start(GTK_BOX(hbox), username, FALSE, FALSE, 0);
  
  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);

#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  gtk_notebook_append_page(GTK_NOTEBOOK(notebook), vbox, 
                           gtk_label_new(_("Misc")));
#endif

  /* ----------------- gpxlist settings ------------------- */

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  gtk_box_pack_start_defaults(GTK_BOX(vbox), title_new(_("GPX list")));
#else
  vbox = gtk_vbox_new(FALSE, 0);
#endif

  hbox = gtk_hbox_new(FALSE,2);
  ihbox = gtk_hbox_new(FALSE, 0);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), label = gtk_label_new(_("Visible items:")));
  gtk_misc_set_alignment(GTK_MISC(label), 0.f, 0.5f);

  GtkWidget *cbox_fname = toggle_button_new_with_label(_("Filename"));
  toggle_button_set_active(cbox_fname, appdata->gpxlist_items & GPXLIST_ITEM_FILENAME);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), cbox_fname);
  GtkWidget *cbox_date = toggle_button_new_with_label(_("Date"));
  toggle_button_set_active(cbox_date, appdata->gpxlist_items & GPXLIST_ITEM_DATE);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), cbox_date);
  GtkWidget *cbox_num = toggle_button_new_with_label(_("# Caches"));
  toggle_button_set_active(cbox_num, appdata->gpxlist_items & GPXLIST_ITEM_CNUM);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), cbox_num);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), ihbox);

  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);

#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  gtk_notebook_append_page(GTK_NOTEBOOK(notebook), vbox, 
                           gtk_label_new(_("GPX list")));
#endif

  /* ----------------- cachelist settings ------------------- */

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  gtk_box_pack_start_defaults(GTK_BOX(vbox), title_new(_("Cache list")));
#else
  vbox = gtk_vbox_new(FALSE, 0);
#endif

  hbox = gtk_hbox_new(FALSE,2);
  ihbox = gtk_hbox_new(FALSE, 0);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), label = gtk_label_new(_("Visible items:")));
  gtk_misc_set_alignment(GTK_MISC(label), 0.f, 0.5f);

  GtkWidget *cbox_wpt = toggle_button_new_with_label(_("Wpt"));
  toggle_button_set_active(cbox_wpt, appdata->cachelist_items & CACHELIST_ITEM_ID);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), cbox_wpt);
  GtkWidget *cbox_size = toggle_button_new_with_label(_("Size"));
  toggle_button_set_active(cbox_size, appdata->cachelist_items & CACHELIST_ITEM_SIZE);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), cbox_size);
  GtkWidget *cbox_rate = toggle_button_new_with_label(_("Rating"));
  toggle_button_set_active(cbox_rate, appdata->cachelist_items & CACHELIST_ITEM_RATING);
  gtk_box_pack_start_defaults(GTK_BOX(ihbox), cbox_rate);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), ihbox);

  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);

  GtkWidget *cbox_cachelist_hidef = 
    check_button_new_with_label(_("Hide caches marked \"found\""));
  check_button_set_active(cbox_cachelist_hidef, appdata->cachelist_hide_found);

  gtk_box_pack_start(GTK_BOX(vbox), cbox_cachelist_hidef, FALSE, FALSE, 0);

#ifdef USE_MAEMO
  GtkWidget *cbox_cachelist_dss = 
    check_button_new_with_label(_("Disable screen saver"));
  check_button_set_active(cbox_cachelist_dss, appdata->cachelist_disable_screensaver);

  gtk_box_pack_start(GTK_BOX(vbox), cbox_cachelist_dss, FALSE, FALSE, 0);
#endif

  GtkWidget *cbox_update = 
    check_button_new_with_label(_("Update every 30 sec"));
  check_button_set_active(cbox_update, appdata->cachelist_update);
  gtk_box_pack_start(GTK_BOX(vbox), cbox_update, FALSE, FALSE, 0);

#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  gtk_notebook_append_page(GTK_NOTEBOOK(notebook), vbox, 
                           gtk_label_new(_("Cache list")));
#endif

  /* ----------------- cache settings ------------------- */

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  gtk_box_pack_start_defaults(GTK_BOX(vbox), title_new(_("Cache")));
#else
  vbox = gtk_vbox_new(FALSE, 0);
#endif

  hbox = gtk_hbox_new(FALSE,2);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), 
            label = gtk_label_new(_("Compass damping:")));
  gtk_misc_set_alignment(GTK_MISC(label), 0.f, 0.5f);

  gtk_box_pack_start(GTK_BOX(hbox), gtk_label_new(_("Min")), FALSE, FALSE,0);
  GtkWidget *scale = gtk_hscale_new_with_range(1, MAX_AVERAGE, 1);
  gtk_scale_set_value_pos(GTK_SCALE(scale), GTK_POS_LEFT);
  gtk_scale_set_draw_value(GTK_SCALE(scale), FALSE);
  gtk_range_set_value(GTK_RANGE(scale), appdata->compass_damping);
  gtk_box_pack_start_defaults(GTK_BOX(hbox), scale);
  gtk_box_pack_start(GTK_BOX(hbox), gtk_label_new(_("Max")), FALSE, FALSE,0);

  gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);

  GtkWidget *cbox_gcvote = check_button_new_with_label(_("Use GCVote service"));
  check_button_set_active(cbox_gcvote, !appdata->disable_gcvote);
  gtk_box_pack_start(GTK_BOX(vbox), cbox_gcvote, FALSE, FALSE, 0);

#ifdef USE_MAEMO
  GtkWidget *cbox_goto_dss = check_button_new_with_label(
                            _("Disable screen saver in \"goto\" view"));
  check_button_set_active(cbox_goto_dss, appdata->goto_disable_screensaver);
  gtk_box_pack_start(GTK_BOX(vbox), cbox_goto_dss, FALSE, FALSE, 0);
#endif

#if !defined(USE_MAEMO) || (MAEMO_VERSION_MAJOR < 5)
  gtk_notebook_append_page(GTK_NOTEBOOK(notebook), vbox, 
                           gtk_label_new(_("Cache")));
#endif

  /* -------------------------------------------------------- */

#if defined(USE_MAEMO) && (MAEMO_VERSION_MAJOR >= 5)
  hildon_pannable_area_add_with_viewport(HILDON_PANNABLE_AREA(pannable_area), vbox);
  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), pannable_area);
#else
  gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), notebook);
#endif

  gtk_widget_show_all(dialog);

  if(GTK_RESPONSE_ACCEPT == gtk_dialog_run(GTK_DIALOG(dialog))) {
    gboolean prev_cachelist_hide_found = appdata->cachelist_hide_found;

    appdata->use_gps = 
      check_button_get_active(hstate.cbox_gps);
    appdata->imperial = 
      check_button_get_active(cbox_imperial);

    if(appdata->username) {
      g_free(appdata->username);
      appdata->username = NULL;
    }

    const char *uname = gtk_entry_get_text(GTK_ENTRY(username));
    if(uname && strlen(uname)>0) 
      appdata->username = g_strdup(uname);

    appdata->compass_damping = 0.5 + gtk_range_get_value(GTK_RANGE(scale));

    appdata->gpxlist_items = GPXLIST_ITEM_VALID;
    if(toggle_button_get_active(cbox_fname))
      appdata->gpxlist_items |= GPXLIST_ITEM_FILENAME;
    if(toggle_button_get_active(cbox_date))
      appdata->gpxlist_items |= GPXLIST_ITEM_DATE;
    if(toggle_button_get_active(cbox_num))
      appdata->gpxlist_items |= GPXLIST_ITEM_CNUM;
      
    appdata->cachelist_items = CACHELIST_ITEM_VALID;
    if(toggle_button_get_active(cbox_wpt))
      appdata->cachelist_items |= CACHELIST_ITEM_ID;
    if(toggle_button_get_active(cbox_size))
      appdata->cachelist_items |= CACHELIST_ITEM_SIZE;
    if(toggle_button_get_active(cbox_rate))
      appdata->cachelist_items |= CACHELIST_ITEM_RATING;      

    appdata->cachelist_hide_found = 
      check_button_get_active(cbox_cachelist_hidef);

#ifdef USE_MAEMO
    appdata->goto_disable_screensaver = 
      check_button_get_active(cbox_goto_dss);      
    appdata->cachelist_disable_screensaver = 
      check_button_get_active(cbox_cachelist_dss);
#endif
    appdata->cachelist_update = check_button_get_active(cbox_update);

    appdata->disable_gcvote = !check_button_get_active(cbox_gcvote);

    /* build some additional flags that are used to decide whether a */
    /* redraw is necessary */
    int flags = CHANGE_FLAG_POS;

    if(prev_cachelist_hide_found != appdata->cachelist_hide_found)
      flags |= CHANGE_FLAG_MASK;   // visibility mask has changed 

    main_after_settings_redraw(appdata, flags);
  }
  gtk_widget_destroy(dialog);
}
