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menustate.c

/* 
 *  gretl -- Gnu Regression, Econometrics and Time-series Library
 *  Copyright (C) 2001 Allin Cottrell and Riccardo "Jack" Lucchetti
 * 
 *  This program 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.
 * 
 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

/* menustate.c: status of menus etc. */

#include "gretl.h"
#include "console.h"
#include "guiprint.h"
#include "ssheet.h"
#include "selector.h"
#include "varinfo.h"
#include "treeutils.h"
#include "menustate.h"

void refresh_data (void)
{
    if (data_status) {
      populate_varlist();
      set_sample_label(dataset);
    }
}

void flip (GtkUIManager *ui, const char *path, gboolean s)
{
    if (ui != NULL) {
      GtkAction *a = gtk_ui_manager_get_action(ui, path);

      if (a != NULL) {
          gtk_action_set_sensitive(a, s);
      } else {
          fprintf(stderr, I_("Failed to flip state of \"%s\"\n"), path);
      }
    }
}

/* by using gretl_set_window_modal() we make the main
   window visibly insensitive */

static int modcount;

static void increment_modal_count (GtkWidget *w)
{
    if (modcount == 0) {
      gtk_widget_set_sensitive(mdata->main, FALSE);
    }

    modcount++;
}

static void decrement_modal_count (GtkWidget *w, gpointer p)
{
    if (modcount > 0) {
      modcount--;
    }

    if (modcount == 0) {
      gtk_widget_set_sensitive(mdata->main, TRUE);
    }
}

void gretl_set_window_modal (GtkWidget *w)
{
    gtk_window_set_modal(GTK_WINDOW(w), TRUE);
    increment_modal_count(w);
    g_signal_connect(G_OBJECT(w), "destroy", 
                 G_CALLBACK(decrement_modal_count),
                 NULL);
}

void gretl_set_window_quasi_modal (GtkWidget *w)
{
    increment_modal_count(w);
    g_signal_connect(G_OBJECT(w), "destroy", 
                 G_CALLBACK(decrement_modal_count),
                 NULL);
}

void variable_menu_state (gboolean s)
{
    if (mdata == NULL || mdata->ui == NULL) return;

    flip(mdata->ui, "/menubar/Variable", s);
    flip(mdata->ui, "/menubar/View/xcorrgm",  
       dataset_is_time_series(dataset));
}

static void view_items_state (gboolean s)
{
    const char *viewpaths[] = {
      "IconView",
      "EditScalars",
      "GraphVars",
      "MultiPlots",
      "summary",
      "corr",
      "xtab",
      "pca",
      "mahal",
      "xcorrgm",
      NULL
    };
    char fullpath[32];
    int i;

    for (i=0; viewpaths[i] != NULL; i++) {
      sprintf(fullpath, "/menubar/View/%s", viewpaths[i]);
      flip(mdata->ui, fullpath, s);
    }
}

void main_menubar_state (gboolean s)
{
    if (mdata == NULL || mdata->ui == NULL) return;

    flip(mdata->ui, "/menubar/File/AppendData", s);
    flip(mdata->ui, "/menubar/File/ClearData", s);
    flip(mdata->ui, "/menubar/File/SaveData", s);
    flip(mdata->ui, "/menubar/File/SaveDataAs", s);
    flip(mdata->ui, "/menubar/File/ExportData", s);
    flip(mdata->ui, "/menubar/File/MailData", s);
    flip(mdata->ui, "/menubar/Data", s);
    flip(mdata->ui, "/menubar/Add", s);
    flip(mdata->ui, "/menubar/Sample", s);
    flip(mdata->ui, "/menubar/Variable", s);
    flip(mdata->ui, "/menubar/Model", s);

    view_items_state(s);

    if (s || get_n_listed_windows() == 0) {
      flip(mdata->ui, "/menubar/View", s);
    }

    flip(mdata->ui, "/menubar/File/NewData", !s);

    set_main_colheads_clickable(s);
}

void window_list_state (gboolean s)
{
    if (s) {
      GtkAction *a = gtk_ui_manager_get_action(mdata->ui, "/menubar/View");

      if (a != NULL && !gtk_action_get_sensitive(a)) {
          gtk_action_set_sensitive(a, TRUE);
          view_items_state(FALSE);
      }
      flip(mdata->ui, "/menubar/View/Windows", s);
    } else if (!data_status) {
      flip(mdata->ui, "/menubar/View", s);
    }
}

#define COMPACTABLE(d) (d->structure == TIME_SERIES && \
                        (d->pd == 4 || d->pd == 12 || \
                         d->pd == 5 || d->pd == 6 || \
                         d->pd == 7 || d->pd == 24))

#define EXPANSIBLE(d) (d->structure == TIME_SERIES && (d->pd == 1 || d->pd == 4))

#define extended_ts(d) ((d)->structure == TIME_SERIES || \
                  (d)->structure == SPECIAL_TIME_SERIES || \
                  (d)->structure == STACKED_TIME_SERIES)

void time_series_menu_state (gboolean s)
{
    gboolean sx = extended_ts(dataset);
    gboolean panel = dataset_is_panel(dataset);
    gboolean realpan = multi_unit_panel_sample(dataset);
    gboolean ur = s;

    if (mdata->ui == NULL) {
      return;
    }

    if (panel) {
      ur = dataset->pd > 5;
    }

    /* Plots */
    flip(mdata->ui, "/menubar/View/GraphVars/TSPlot", sx);
    flip(mdata->ui, "/menubar/View/MultiPlots/MultiTS", sx);
    flip(mdata->ui, "/menubar/Variable/VarTSPlot", sx && !realpan);
    flip(mdata->ui, "/menubar/Variable/PanPlot", realpan);

    /* Variable menu */
    flip(mdata->ui, "/menubar/Variable/URTests", ur); 
    if (ur && !s) {
      flip(mdata->ui, "/menubar/Variable/URTests/fractint", s);
    }
    if (ur && !panel) {
      flip(mdata->ui, "/menubar/Variable/URTests/levinlin", panel);
    }
    flip(mdata->ui, "/menubar/Variable/corrgm", s);
    flip(mdata->ui, "/menubar/Variable/pergm", s);
    flip(mdata->ui, "/menubar/Variable/Filter", s);
#ifdef HAVE_X12A
    flip(mdata->ui, "/menubar/Variable/X12A", get_x12a_ok());
#endif
#ifdef HAVE_TRAMO
    flip(mdata->ui, "/menubar/Variable/Tramo", get_tramo_ok());
#endif
    flip(mdata->ui, "/menubar/Variable/Hurst", s);
    /* Model menu */
    flip(mdata->ui, "/menubar/Model/TSModels", s);
    /* Sample menu */
    flip(mdata->ui, "/menubar/Data/DataCompact", 
       s && (COMPACTABLE(dataset) || dated_weekly_data(dataset)));
    flip(mdata->ui, "/menubar/Data/DataExpand", s && EXPANSIBLE(dataset));
}

void panel_menu_state (gboolean s)
{
    if (mdata->ui != NULL) {
      flip(mdata->ui, "/menubar/Add/UnitDums", s);
      flip(mdata->ui, "/menubar/Add/TimeDums", s);
      flip(mdata->ui, "/menubar/Model/PanelModels", s);
      if (s && dataset->pd <= 2) {
          flip(mdata->ui, "/menubar/Model/PanelModels/dpanel", 0);
      }
    }
}

void ts_or_panel_menu_state (gboolean s)
{
    if (mdata->ui == NULL) return;

    flip(mdata->ui, "/menubar/Data/DataSort", !s);

    flip(mdata->ui, "/menubar/Add/AddTime", s);
    flip(mdata->ui, "/menubar/Add/lags", s);
    flip(mdata->ui, "/menubar/Add/diff", s);
    flip(mdata->ui, "/menubar/Add/ldiff", s);

    s = dataset_is_seasonal(dataset);
    flip(mdata->ui, "/menubar/Add/sdiff", s);
    flip(mdata->ui, "/menubar/Add/PeriodDums", s);
}

void session_menu_state (gboolean s)
{
    if (mdata->ui != NULL) {
      flip(mdata->ui, "/menubar/View/IconView", s);
      flip(mdata->ui, "/menubar/File/SessionFiles/SaveSession", s);
      flip(mdata->ui, "/menubar/File/SessionFiles/SaveSessionAs", s);
    }

    if (!s && mdata->main != NULL) {
      set_main_window_title(NULL, FALSE);
    }
}

void restore_sample_state (gboolean s)
{
    if (mdata->ui != NULL) {
      flip(mdata->ui, "/menubar/Sample/FullRange", s);
    }
}

void drop_obs_state (gboolean s)
{
    if (mdata->ui != NULL) {
      flip(mdata->ui, "/menubar/Data/RemoveObs", s);
    }
}

void compact_data_state (gboolean s)
{
    if (mdata->ui != NULL) {
      flip(mdata->ui, "/menubar/Data/DataCompact", s);
    }
}

void main_menus_enable (gboolean s)
{
    if (mdata->ui != NULL) {
      flip(mdata->ui, "/menubar/File", s);
      flip(mdata->ui, "/menubar/Tools", s);
      flip(mdata->ui, "/menubar/Data", s);
      flip(mdata->ui, "/menubar/View", s);
      flip(mdata->ui, "/menubar/Add", s);
      flip(mdata->ui, "/menubar/Sample", s);
      flip(mdata->ui, "/menubar/Variable", s);
      flip(mdata->ui, "/menubar/Model", s);
    }
}

void check_var_labels_state (GtkMenuItem *item, gpointer p)
{
    gboolean s = FALSE;

    if (dataset != NULL && dataset->v > 0) {
      if (dataset->v > 2 || strcmp(dataset->varname[1], "index")) {
          s = TRUE;
      }
    }

    flip(mdata->ui, "/menubar/Data/VarLabels", s);
}

static gint var_popup_click (GtkWidget *w, gpointer p)
{
    gchar *item = (gchar *) p;
    int v = mdata_active_var();

    if (!strcmp(item, _("Display values"))) 
      display_var();
    if (!strcmp(item, _("Descriptive statistics"))) 
      do_menu_op(VAR_SUMMARY, NULL, OPT_NONE);
    else if (!strcmp(item, _("Time series plot"))) 
      do_graph_var(v);
    else if (!strcmp(item, _("Panel plot..."))) 
      do_graph_var(v);
    else if (!strcmp(item, _("Frequency distribution"))) 
      do_freq_dist();
    else if (!strcmp(item, _("Boxplot")))
      menu_boxplot_callback(v);
    else if (!strcmp(item, _("Gini coefficient")))
      do_gini();
    else if (!strcmp(item, _("Correlogram")))
      do_corrgm();
    else if (!strcmp(item, _("Periodogram"))) 
      do_pergm(NULL);
    else if (!strcmp(item, _("ARIMA model"))) {
      selector_set_varnum(v);
      modelspec_dialog(ARMA);
    } else if (!strcmp(item, _("Dickey-Fuller test"))) 
      unit_root_test(ADF);
    else if (!strcmp(item, _("KPSS test"))) 
      unit_root_test(KPSS);
    else if (!strcmp(item, _("Hurst exponent"))) 
      do_hurst();
    else if (!strcmp(item, _("Edit attributes")))  
      varinfo_dialog(v);
    else if (!strcmp(item, _("Edit values")))  
      show_spreadsheet(SHEET_EDIT_VARLIST);
    else if (!strcmp(item, _("Copy to clipboard"))) 
      csv_selected_to_clipboard();
    else if (!strcmp(item, _("Delete"))) 
      delete_single_var(v);
    else if (!strcmp(item, _("Define new variable..."))) 
      genr_callback();

    gtk_widget_destroy(mdata->popup);

    return FALSE;
}

static gint selection_popup_click (GtkWidget *w, gpointer p)
{
    gchar *item = (gchar *) p;
    int ci = 0;

    if (!strcmp(item, _("Descriptive statistics"))) {
      ci = SUMMARY;
    } else if (!strcmp(item, _("Correlation matrix"))) {
      ci = CORR;
    }

    if (ci == CORR) {
      gchar *title;

      title = g_strdup_printf("gretl: %s", gretl_command_word(ci));
      simple_selection(title, menu_op_wrapper, ci, NULL);
      g_free(title);
    } else if (ci != 0) {
      char *buf = main_window_selection_as_string();
      
      do_menu_op(ci, buf, OPT_NONE);
      free(buf);
    } else if (!strcmp(item, _("Display values"))) { 
      display_selected(); 
    } else if (!strcmp(item, _("Cross-correlogram")))  {
      xcorrgm_callback();
    } else if (!strcmp(item, _("Time series plot"))) { 
      plot_from_selection(GR_PLOT);
    } else if (!strcmp(item, _("XY scatterplot")))  {
      plot_from_selection(GR_XY);
    } else if (!strcmp(item, _("Copy to clipboard"))) { 
      csv_selected_to_clipboard();
    } else if (!strcmp(item, _("Edit values")))  {
      show_spreadsheet(SHEET_EDIT_VARLIST);
    } else if (!strcmp(item, _("Delete")))  {
      delete_selected_vars();
    } else if (!strcmp(item, _("Add logs")))  {
      add_logs_etc(LOGS);
    } else if (!strcmp(item, _("Add differences")))  {
      add_logs_etc(DIFF);
    }

    gtk_widget_destroy(mdata->popup);

    return FALSE;
}

GtkWidget *build_var_popup (void)
{
    const char *items[] = {
      N_("Display values"),
      N_("Descriptive statistics"),
      N_("Time series plot"),
      N_("Panel plot..."),
      N_("Frequency distribution"),
      N_("Boxplot"),
      N_("Correlogram"),
      N_("Periodogram"),
      N_("Edit attributes"),
      N_("Edit values"),
      N_("Copy to clipboard"),
      N_("Delete"),
      NULL,
      N_("Define new variable...")
    };
    GtkWidget *menu;
    GtkWidget *item;
    int i, n = G_N_ELEMENTS(items);
    int real_panel = multi_unit_panel_sample(dataset);

    menu = gtk_menu_new();

    for (i=0; i<n; i++) {
      if (items[i] == NULL) {
          item = gtk_separator_menu_item_new();
          gtk_widget_show(item);
          gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
          continue;
      }
      if (real_panel && (i == 2 || i == 5)) {
          /* don't offer regular ts or boxplot */
          continue;
      }
      if (!real_panel && i == 3) {
          /* don't offer panel plot */
          continue;
      }     
      if ((i == 6 || i == 7) && !dataset_is_time_series(dataset)) {
          continue;
      }
      if (i == 2 && !extended_ts(dataset)) {
          continue;
      }
      item = gtk_menu_item_new_with_label(_(items[i]));
      g_signal_connect(G_OBJECT(item), "activate",
                   G_CALLBACK(var_popup_click),
                   _(items[i]));
      gtk_widget_show(item);
      gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
    }

    return menu;
}

GtkWidget *build_selection_popup (void)
{
    const char *items[] = {
      N_("Display values"),
      N_("Descriptive statistics"),
      N_("Correlation matrix"),
      N_("Cross-correlogram"),
      N_("Time series plot"),
      N_("XY scatterplot"),
      N_("Copy to clipboard"),
      N_("Edit values"),
      N_("Delete"),
      NULL,
      N_("Add logs"),
      N_("Add differences")
    };
    GtkWidget *menu;
    GtkWidget *item;
    int i, n = G_N_ELEMENTS(items);

    menu = gtk_menu_new();

    for (i=0; i<n; i++) {
      if (items[i] == NULL) {
          item = gtk_separator_menu_item_new();
          gtk_widget_show(item);
          gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
          continue;
      }
      if (!dataset_is_time_series(dataset) && (i == 3 || i == 11)) {
          continue;
      }
      if (!extended_ts(dataset) && i == 4) {
          continue;
      }
      item = gtk_menu_item_new_with_label(_(items[i]));
      g_signal_connect(G_OBJECT(item), "activate",
                   G_CALLBACK(selection_popup_click),
                   _(items[i]));
      gtk_widget_show(item);
      gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
    }

    return menu;
}

void clear_sample_label (void)
{
    GtkWidget *dlabel = g_object_get_data(G_OBJECT(mdata->main), "dlabel");

    gtk_label_set_text(GTK_LABEL(mdata->status), "");
    gtk_label_set_text(GTK_LABEL(dlabel), _(" No datafile loaded "));
}

void set_main_window_title (const char *name, gboolean modified)
{
    if (name == NULL) {
      gtk_window_set_title(GTK_WINDOW(mdata->main), "gretl");
    } else {
      /* FIXME encoding? */
      gchar *title = NULL;

      if (!g_utf8_validate(name, -1, NULL)) {
          gchar *trname = my_filename_to_utf8(name);
          
          if (modified) {
            title = g_strdup_printf("gretl: %s *", trname);
          } else {
            title = g_strdup_printf("gretl: %s", trname);
          }
          g_free(trname);
      } else {
          if (modified) {
            title = g_strdup_printf("gretl: %s *", name);
          } else {
            title = g_strdup_printf("gretl: %s", name);
          }
      }

      gtk_window_set_title(GTK_WINDOW(mdata->main), title);
      g_free(title);
    }
}

static const char *get_pd_string (DATASET *pdinfo)
{
    char *pdstr;

    if (custom_time_series(pdinfo)) {
      pdstr = N_("Time series");
    } else if (dataset_is_time_series(pdinfo)) {
      switch (pdinfo->pd) {
      case 1:
          pdstr = N_("Annual"); break;
      case 4:
          pdstr = N_("Quarterly"); break;
      case 12:
          pdstr = N_("Monthly"); break;
      case 24:
          pdstr = N_("Hourly"); break;
      case 52:
          pdstr = N_("Weekly"); break;
      case 5:
      case 6:
      case 7:
          pdstr = N_("Daily"); break;
      case 10:
          pdstr = N_("Decennial"); break;
      default:
          pdstr = N_("Unknown"); break;
      }
    } else if (dataset_is_panel(pdinfo)) {
      pdstr = N_("Panel");
    } else {
      pdstr = N_("Undated");
    }
    
    return pdstr;
}

void set_sample_label (DATASET *pdinfo)
{
    GtkWidget *dlabel;
    char t1str[OBSLEN], t2str[OBSLEN];
    char tmp[256];

    if (mdata == NULL) {
      return;
    }

    /* set the sensitivity of various menu items */

    time_series_menu_state(dataset_is_time_series(pdinfo));
    panel_menu_state(dataset_is_panel(pdinfo));
    ts_or_panel_menu_state(dataset_is_time_series(pdinfo) ||
                     dataset_is_panel(pdinfo));
    flip(mdata->ui, "/menubar/Data/DataTranspose", !dataset_is_panel(pdinfo));

    /* construct label showing summary of dataset/sample info
       (this goes at the foot of the window) */
    
    if (complex_subsampled() && pdinfo->t1 == 0 && 
      pdinfo->t2 == pdinfo->n - 1 && 
      dataset->structure == CROSS_SECTION) {
      sprintf(tmp, _("Undated: Full range n = %d; current sample"
                   " n = %d"), get_full_length_n(), dataset->n);
    } else {
      const char *pdstr;

      ntodate(t1str, 0, pdinfo);
      ntodate(t2str, pdinfo->n - 1, pdinfo);
      pdstr = get_pd_string(pdinfo);
      sprintf(tmp, _("%s: Full range %s - %s"), _(pdstr), 
            t1str, t2str);
    }

    if (pdinfo->t1 > 0 || pdinfo->t2 < pdinfo->n - 1) {
      gchar *fulltext;

      ntodate(t1str, pdinfo->t1, pdinfo);
      ntodate(t2str, pdinfo->t2, pdinfo);
      fulltext = g_strdup_printf(_("%s; sample %s - %s"), tmp, t1str, t2str);
      gtk_label_set_text(GTK_LABEL(mdata->status), fulltext);
      g_free(fulltext);
    } else {
      gtk_label_set_text(GTK_LABEL(mdata->status), tmp);
    }

    /* construct label with datafile name (this goes above the
       data series window) */

    dlabel = g_object_get_data(G_OBJECT(mdata->main), "dlabel");

    if (dlabel != NULL) {
      if (strlen(datafile) > 2) {
          /* data file open already */
          const char *p = strrchr(datafile, SLASH);
          gchar *trfname;

          if (p != NULL) {
            trfname = my_filename_to_utf8(p + 1);
          } else {
            trfname = my_filename_to_utf8(datafile);
          }

          strcpy(tmp, " ");

          if (data_status & SESSION_DATA) {
            sprintf(tmp + 1, "Imported %s", trfname);
          } else if (data_status & MODIFIED_DATA) {
            sprintf(tmp + 1, "%s *", trfname);
          } else {
            sprintf(tmp + 1, "%s", trfname);
          }

          gtk_label_set_text(GTK_LABEL(dlabel), tmp);
          g_free(trfname);
      } else if (data_status & MODIFIED_DATA) {
          strcpy(tmp, _(" Unsaved data "));
          gtk_label_set_text(GTK_LABEL(dlabel), tmp);
      }
    }

    if (complex_subsampled() || pdinfo->t1 > 0 || 
      pdinfo->t2 < pdinfo->n - 1) {
      restore_sample_state(TRUE);
    }

    console_record_sample(dataset);
}

void action_entry_init (GtkActionEntry *entry)
{
    entry->stock_id = NULL;
    entry->accelerator = NULL;
    entry->tooltip = NULL;
    entry->callback = NULL;
}

int vwin_add_ui (windata_t *vwin, GtkActionEntry *entries,
             gint n_entries, const gchar *ui_info)
{
    GtkActionGroup *actions;
    GError *err = NULL;

    actions = gtk_action_group_new("MyActions");
    gtk_action_group_set_translation_domain(actions, "gretl");

    gtk_action_group_add_actions(actions, entries, n_entries, vwin);

    vwin->ui = gtk_ui_manager_new();
    gtk_ui_manager_insert_action_group(vwin->ui, actions, 0);
    g_object_unref(actions);

    gtk_window_add_accel_group(GTK_WINDOW(vwin->main), 
                         gtk_ui_manager_get_accel_group(vwin->ui));

    gtk_ui_manager_add_ui_from_string(vwin->ui, ui_info, -1, &err);
    if (err != NULL) {
      g_message("building menus failed: %s", err->message);
      g_error_free(err);
    }

    vwin->mbar = gtk_ui_manager_get_widget(vwin->ui, "/menubar");

    return 0;
}

int vwin_menu_add_item (windata_t *vwin, const gchar *path, 
                  GtkActionEntry *entry)
{
    guint id = gtk_ui_manager_new_merge_id(vwin->ui);
    GtkActionGroup *actions;

    actions = gtk_action_group_new("AdHoc");
    gtk_action_group_set_translation_domain(actions, "gretl");

    gtk_action_group_add_actions(actions, entry, 1, vwin);
    gtk_ui_manager_add_ui(vwin->ui, id, path, entry->name, entry->name,
                    GTK_UI_MANAGER_MENUITEM, FALSE);
    gtk_ui_manager_insert_action_group(vwin->ui, actions, 0);
    g_object_unref(actions);

    return id;
}

int vwin_menu_add_items (windata_t *vwin, const gchar *path, 
                   GtkActionEntry *entries, int n)
{
    guint id = gtk_ui_manager_new_merge_id(vwin->ui);
    GtkActionGroup *actions;
    int i;

    actions = gtk_action_group_new("AdHoc");
    gtk_action_group_set_translation_domain(actions, "gretl");

    gtk_action_group_add_actions(actions, entries, n, vwin);
    for (i=0; i<n; i++) {
      gtk_ui_manager_add_ui(vwin->ui, id, path, 
                        entries[i].name, entries[i].name,
                        GTK_UI_MANAGER_MENUITEM, FALSE);
    }
    gtk_ui_manager_insert_action_group(vwin->ui, actions, 0);
    g_object_unref(actions);

    return id;
}

int vwin_menu_add_radios (windata_t *vwin, const gchar *path, 
                    GtkRadioActionEntry *entries, int n,
                    int deflt, GCallback callback)
{
    guint id = gtk_ui_manager_new_merge_id(vwin->ui);
    GtkActionGroup *actions;
    int i;

    actions = gtk_action_group_new("Radios");
    gtk_action_group_set_translation_domain(actions, "gretl");

    gtk_action_group_add_radio_actions(actions, entries, n,
                               deflt, callback,
                               vwin);
    for (i=0; i<n; i++) {
      gtk_ui_manager_add_ui(vwin->ui, id, path, 
                        entries[i].name, entries[i].name,
                        GTK_UI_MANAGER_MENUITEM, FALSE);
    }
    gtk_ui_manager_insert_action_group(vwin->ui, actions, 0);
    g_object_unref(actions);

    return id;
}

int vwin_menu_add_menu (windata_t *vwin, const gchar *path, 
                  GtkActionEntry *entry)
{
    guint id = gtk_ui_manager_new_merge_id(vwin->ui);
    GtkActionGroup *actions;

    actions = gtk_action_group_new("NewMenu");
    gtk_action_group_set_translation_domain(actions, "gretl");

    gtk_action_group_add_actions(actions, entry, 1, vwin);
    gtk_ui_manager_add_ui(vwin->ui, id, path, entry->name, entry->name,
                    GTK_UI_MANAGER_MENU, FALSE);
    gtk_ui_manager_insert_action_group(vwin->ui, actions, 0);
    g_object_unref(actions);

    return id;
}

void vwin_menu_add_separator (windata_t *vwin, const gchar *path)
{
    guint id = gtk_ui_manager_new_merge_id(vwin->ui);

    gtk_ui_manager_add_ui(vwin->ui, id, path, NULL, NULL,
                    GTK_UI_MANAGER_SEPARATOR, FALSE);
}

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