Oops
authorJohn Darrington <john@darrington.wattle.id.au>
Fri, 29 Feb 2008 09:12:23 +0000 (09:12 +0000)
committerJohn Darrington <john@darrington.wattle.id.au>
Fri, 29 Feb 2008 09:12:23 +0000 (09:12 +0000)
src/ui/gui/data-editor.c [new file with mode: 0644]

diff --git a/src/ui/gui/data-editor.c b/src/ui/gui/data-editor.c
new file mode 100644 (file)
index 0000000..96f42cc
--- /dev/null
@@ -0,0 +1,2154 @@
+/* PSPPIRE - a graphical user interface for PSPP.
+   Copyright (C) 2006, 2007  Free Software Foundation
+
+   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/>. */
+
+#include <config.h>
+#include <stdlib.h>
+#include <gettext.h>
+
+#include <glade/glade.h>
+#include <gtk/gtk.h>
+
+#include "window-manager.h"
+#include <gtksheet/gtksheet.h>
+
+#include "helper.h"
+#include "about.h"
+#include <data/procedure.h>
+#include "psppire-dialog.h"
+#include "psppire-selector.h"
+#include "weight-cases-dialog.h"
+#include "split-file-dialog.h"
+#include "transpose-dialog.h"
+#include "sort-cases-dialog.h"
+#include "select-cases-dialog.h"
+#include "compute-dialog.h"
+#include "goto-case-dialog.h"
+#include "find-dialog.h"
+#include "rank-dialog.h"
+#include "recode-dialog.h"
+#include "comments-dialog.h"
+#include "variable-info-dialog.h"
+#include "descriptives-dialog.h"
+#include "crosstabs-dialog.h"
+#include "frequencies-dialog.h"
+#include "examine-dialog.h"
+#include "dict-display.h"
+#include "regression-dialog.h"
+#include "clipboard.h"
+
+#include "oneway-anova-dialog.h"
+#include "t-test-independent-samples-dialog.h"
+#include "t-test-one-sample.h"
+#include "t-test-paired-samples.h"
+
+#define _(msgid) gettext (msgid)
+#define N_(msgid) msgid
+
+#include "data-editor.h"
+#include "syntax-editor.h"
+#include <language/syntax-string-source.h>
+#include <language/command.h>
+#include <libpspp/syntax-gen.h>
+#include "window-manager.h"
+
+#include "psppire-data-store.h"
+#include "psppire-var-store.h"
+
+static void on_edit_copy (GtkMenuItem *, gpointer);
+static void on_edit_cut (GtkMenuItem *, gpointer);
+static void on_edit_paste (GtkAction *a, gpointer data);
+
+
+static void create_data_sheet_variable_popup_menu (struct data_editor *);
+static void create_data_sheet_cases_popup_menu (struct data_editor *);
+
+static void popup_variable_menu (GtkSheet *, gint,
+                                GdkEventButton *, gpointer data);
+
+static void popup_cases_menu (GtkSheet *, gint,
+                                GdkEventButton *, gpointer data);
+
+/* Update the data_ref_entry with the reference of the active cell */
+static gint update_data_ref_entry (const GtkSheet *sheet,
+                                  gint row, gint col, gpointer data);
+
+static void register_data_editor_actions (struct data_editor *de);
+
+static void insert_variable (GtkAction *, gpointer data);
+static void insert_case (GtkAction *a, gpointer data);
+static void delete_cases (GtkAction *a, gpointer data);
+static void delete_variables (GtkAction *a, gpointer data);
+
+static void toggle_value_labels (GtkToggleAction *a, gpointer data);
+
+/* Switch between the VAR SHEET and the DATA SHEET */
+
+static gboolean click2column (GtkWidget *w, gint col, gpointer data);
+static gboolean click2row (GtkWidget *w, gint row, gpointer data);
+
+
+/* Callback for when the dictionary changes properties*/
+static void on_weight_change (GObject *, gint, gpointer);
+static void on_filter_change (GObject *, gint, gpointer);
+static void on_split_change (PsppireDict *, gpointer);
+
+static void on_switch_sheet (GtkNotebook *notebook,
+                           GtkNotebookPage *page,
+                           guint page_num,
+                           gpointer user_data);
+
+static void status_bar_activate (GtkCheckMenuItem *, gpointer);
+
+static void grid_lines_activate (GtkCheckMenuItem *, gpointer);
+
+static void data_sheet_activate (GtkCheckMenuItem *, gpointer);
+
+static void variable_sheet_activate (GtkCheckMenuItem *, gpointer );
+
+static void fonts_activate (GtkMenuItem *, gpointer);
+
+static void file_quit (GtkCheckMenuItem *, gpointer );
+
+static void
+enable_delete_cases (GtkWidget *w, gint var, gpointer data)
+{
+  struct data_editor *de = data;
+
+  gtk_action_set_visible (de->delete_cases, var != -1);
+}
+
+
+static void
+enable_delete_variables (GtkWidget *w, gint var, gpointer data)
+{
+  struct data_editor *de = data;
+
+  gtk_action_set_visible (de->delete_variables, var != -1);
+}
+
+
+
+/* Run the EXECUTE command. */
+static void
+execute (GtkMenuItem *mi, gpointer data)
+{
+  struct getl_interface *sss = create_syntax_string_source ("EXECUTE.");
+
+  execute_syntax (sss);
+}
+
+static void
+transformation_change_callback (bool transformations_pending,
+                               gpointer data)
+{
+  struct data_editor *de = data;
+  GtkWidget *menuitem =
+    get_widget_assert (de->xml, "transform_run-pending");
+  GtkWidget *status_label  =
+    get_widget_assert (de->xml, "case-counter-area");
+
+  gtk_widget_set_sensitive (menuitem, transformations_pending);
+
+
+  if ( transformations_pending)
+    gtk_label_set_text (GTK_LABEL (status_label),
+                       _("Transformations Pending"));
+  else
+    gtk_label_set_text (GTK_LABEL (status_label), "");
+}
+
+
+static void open_data_file (const gchar *, struct data_editor *);
+
+
+/* Puts FILE_NAME into the recent list.
+   If it's already in the list, it moves it to the top
+*/
+static void
+add_most_recent (const char *file_name)
+{
+#if RECENT_LISTS_AVAILABLE
+
+  GtkRecentManager *manager = gtk_recent_manager_get_default();
+  gchar *uri = g_filename_to_uri (file_name, NULL, NULL);
+
+  gtk_recent_manager_remove_item (manager, uri, NULL);
+
+  if ( ! gtk_recent_manager_add_item (manager, uri))
+    g_warning ("Could not add item %s to recent list\n",uri);
+
+  g_free (uri);
+#endif
+}
+
+
+
+#if RECENT_LISTS_AVAILABLE
+
+static void
+on_recent_data_select (GtkMenuShell *menushell,   gpointer user_data)
+{
+  gchar *file;
+  struct data_editor *de = user_data;
+
+  gchar *uri =
+    gtk_recent_chooser_get_current_uri (GTK_RECENT_CHOOSER (menushell));
+
+  file = g_filename_from_uri (uri, NULL, NULL);
+
+  g_free (uri);
+
+  open_data_file (file, de);
+
+  g_free (file);
+}
+
+static void
+on_recent_files_select (GtkMenuShell *menushell,   gpointer user_data)
+{
+  gchar *file;
+
+  struct syntax_editor *se ;
+
+  gchar *uri =
+    gtk_recent_chooser_get_current_uri (GTK_RECENT_CHOOSER (menushell));
+
+  file = g_filename_from_uri (uri, NULL, NULL);
+
+  g_free (uri);
+
+  se = (struct syntax_editor *)
+    window_create (WINDOW_SYNTAX, file);
+
+  load_editor_from_file (se, file, NULL);
+
+  g_free (file);
+}
+
+#endif
+
+static void
+datum_entry_activate (GtkEntry *entry, gpointer data)
+{
+  gint row, column;
+  GtkSheet *data_sheet = GTK_SHEET (data);
+  PsppireDataStore *store = PSPPIRE_DATA_STORE (gtk_sheet_get_model (data_sheet));
+
+  const char *text = gtk_entry_get_text (entry);
+
+  gtk_sheet_get_active_cell (data_sheet, &row, &column);
+
+  if ( row == -1 || column == -1)
+    return;
+
+  psppire_data_store_set_string (store, text, row, column);
+}
+
+
+/* Update the Edit->Paste menuitem
+   If PAGE is not -1 , then it should be set to the current page of
+   the data editors notebook widget.
+   If -1, then it'll be queried.
+*/
+static void
+update_paste_menuitem (struct data_editor *de, gint page)
+{
+  GtkWidget * edit_paste = get_widget_assert (de->xml, "edit_paste");
+  GtkWidget *notebook = get_widget_assert (de->xml, "notebook");
+  GtkSheet * data_sheet ;
+  gint row, column;
+
+  if ( page < 0 )
+    page = gtk_notebook_get_current_page (GTK_NOTEBOOK(notebook));
+
+
+  if ( PAGE_VAR_SHEET == page )
+    {
+      /* We don't yet support pasting to the var sheet */
+      gtk_widget_set_sensitive (edit_paste, FALSE);
+      return;
+    }
+
+  data_sheet = GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+  gtk_sheet_get_active_cell (data_sheet, &row, &column);
+
+  if ( row < 0 || column < 0 )
+      gtk_widget_set_sensitive (edit_paste, FALSE);
+  else
+      gtk_widget_set_sensitive (edit_paste, TRUE);
+}
+
+/* Update the Edit->Cut and Edit->Copy menuitems
+   If PAGE is not -1 , then it should be set to the current page of
+   the data editors notebook widget.
+   If -1, then it'll be queried.
+*/
+static void
+update_cut_copy_menuitem (struct data_editor *de, gint page)
+{
+  GtkWidget * edit_copy = get_widget_assert (de->xml, "edit_copy");
+  GtkWidget * edit_cut = get_widget_assert (de->xml, "edit_cut");
+  GtkWidget *notebook = get_widget_assert (de->xml, "notebook");
+  GtkSheet * data_sheet ;
+  gint row, column;
+
+  if ( page < 0 )
+    page = gtk_notebook_get_current_page (GTK_NOTEBOOK(notebook));
+
+
+  if ( PAGE_VAR_SHEET == page )
+    {
+      /* We don't yet support copying from the var sheet */
+      gtk_widget_set_sensitive (edit_copy, FALSE);
+      gtk_widget_set_sensitive (edit_cut, FALSE);
+      return;
+    }
+
+  data_sheet = GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+  gtk_sheet_get_active_cell (data_sheet, &row, &column);
+
+  if ( row < 0 || column < 0 )
+    {
+      gtk_widget_set_sensitive (edit_copy, FALSE);
+      gtk_widget_set_sensitive (edit_cut, FALSE);
+      return;
+    }
+
+  gtk_widget_set_sensitive (edit_copy, TRUE);
+  gtk_widget_set_sensitive (edit_cut, TRUE);
+}
+
+
+/* Callback for when the datasheet's active cell becomes active/inactive */
+static gboolean
+on_data_sheet_activate_change (GtkSheet *sheet,
+                              gint row, gint column, gpointer data)
+{
+  struct data_editor *de = data;
+
+  update_paste_menuitem (de, -1);
+  update_cut_copy_menuitem (de, -1);
+
+  return TRUE;
+}
+
+extern struct dataset *the_dataset;
+
+/*
+  Create a new data editor.
+*/
+struct data_editor *
+new_data_editor (void)
+{
+  struct data_editor *de ;
+  struct editor_window *e;
+  GtkSheet *var_sheet ;
+  GtkSheet *data_sheet ;
+  PsppireVarStore *vs;
+  GtkWidget *datum_entry;
+
+  de = g_malloc0 (sizeof (*de));
+
+  e = (struct editor_window *) de;
+
+  de->xml = XML_NEW ("data-editor.glade");
+
+
+  dataset_add_transform_change_callback (the_dataset,
+                                        transformation_change_callback,
+                                        de);
+
+  var_sheet = GTK_SHEET (get_widget_assert (de->xml, "variable_sheet"));
+  data_sheet = GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+
+  g_signal_connect (G_OBJECT (data_sheet), "activate",
+                   G_CALLBACK (on_data_sheet_activate_change), de);
+
+  g_signal_connect (G_OBJECT (data_sheet), "deactivate",
+                   G_CALLBACK (on_data_sheet_activate_change), de);
+
+
+  vs = PSPPIRE_VAR_STORE (gtk_sheet_get_model (var_sheet));
+
+  g_assert(vs); /* Traps a possible bug in win32 build */
+
+  g_signal_connect (G_OBJECT (data_sheet), "activate",
+                   G_CALLBACK (update_data_ref_entry),
+                   de->xml);
+
+  datum_entry = get_widget_assert (de->xml, "datum_entry");
+
+  g_signal_connect (G_OBJECT (datum_entry), "activate",
+                   G_CALLBACK (datum_entry_activate),
+                   data_sheet);
+
+  g_signal_connect (vs->dict, "weight-changed",
+                   G_CALLBACK (on_weight_change),
+                   de);
+
+  g_signal_connect (vs->dict, "filter-changed",
+                   G_CALLBACK (on_filter_change),
+                   de);
+
+  g_signal_connect (vs->dict, "split-changed",
+                   G_CALLBACK (on_split_change),
+                   de);
+
+  connect_help (de->xml);
+
+
+
+  g_signal_connect (get_widget_assert (de->xml, "edit_copy"),
+                   "activate",
+                   G_CALLBACK (on_edit_copy), de);
+
+  g_signal_connect (get_widget_assert (de->xml, "edit_cut"),
+                   "activate",
+                   G_CALLBACK (on_edit_cut), de);
+
+
+  register_data_editor_actions (de);
+
+  de->toggle_value_labels =
+    gtk_toggle_action_new ("toggle-value-labels",
+                          _("Labels"),
+                          _("Show/hide value labels"),
+                          "pspp-value-labels");
+
+  g_signal_connect (de->toggle_value_labels, "activate",
+                   G_CALLBACK (toggle_value_labels), de);
+
+
+  gtk_action_connect_proxy (GTK_ACTION (de->toggle_value_labels),
+                           get_widget_assert (de->xml,
+                                              "togglebutton-value-labels"));
+
+
+  gtk_action_connect_proxy (GTK_ACTION (de->toggle_value_labels),
+                           get_widget_assert (de->xml,
+                                              "view_value-labels"));
+
+  de->delete_cases =
+    gtk_action_new ("clear-cases",
+                   _("Clear"),
+                   _("Delete the cases at the selected position(s)"),
+                   "pspp-clear-cases");
+
+  g_signal_connect (de->delete_cases, "activate",
+                   G_CALLBACK (delete_cases), de);
+
+  gtk_action_connect_proxy (de->delete_cases,
+                           get_widget_assert (de->xml, "edit_clear-cases"));
+
+  g_signal_connect (get_widget_assert (de->xml, "edit_paste"), "activate",
+                   G_CALLBACK (on_edit_paste), de);
+
+  gtk_action_set_visible (de->delete_cases, FALSE);
+
+  de->delete_variables =
+    gtk_action_new ("clear-variables",
+                   _("Clear"),
+                   _("Delete the variables at the selected position(s)"),
+                   "pspp-clear-variables");
+
+  g_signal_connect (de->delete_variables, "activate",
+                   G_CALLBACK (delete_variables), de);
+
+  gtk_action_connect_proxy (de->delete_variables,
+                           get_widget_assert (de->xml, "edit_clear-variables")
+                           );
+
+  gtk_action_set_visible (de->delete_variables, FALSE);
+
+  de->insert_variable =
+    gtk_action_new ("insert-variable",
+                   _("Insert Variable"),
+                   _("Create a new variable at the current position"),
+                   "pspp-insert-variable");
+
+  g_signal_connect (de->insert_variable, "activate",
+                   G_CALLBACK (insert_variable), de);
+
+
+  gtk_action_connect_proxy (de->insert_variable,
+                           get_widget_assert (de->xml, "button-insert-variable")
+                           );
+
+  gtk_action_connect_proxy (de->insert_variable,
+                           get_widget_assert (de->xml, "edit_insert-variable")
+                           );
+
+
+  de->insert_case =
+    gtk_action_new ("insert-case",
+                   _("Insert Case"),
+                   _("Create a new case at the current position"),
+                   "pspp-insert-case");
+
+  g_signal_connect (de->insert_case, "activate",
+                   G_CALLBACK (insert_case), de);
+
+
+  gtk_action_connect_proxy (de->insert_case,
+                           get_widget_assert (de->xml, "button-insert-case")
+                           );
+
+
+  gtk_action_connect_proxy (de->insert_case,
+                           get_widget_assert (de->xml, "edit_insert-case")
+                           );
+
+
+
+  de->invoke_goto_dialog =
+    gtk_action_new ("goto-case-dialog",
+                   _("Goto Case"),
+                   _("Jump to a Case in the Data Sheet"),
+                   "gtk-jump-to");
+
+
+  gtk_action_connect_proxy (de->invoke_goto_dialog,
+                           get_widget_assert (de->xml, "button-goto-case")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_goto_dialog,
+                           get_widget_assert (de->xml, "edit_goto-case")
+                           );
+
+
+  g_signal_connect (de->invoke_goto_dialog, "activate",
+                   G_CALLBACK (goto_case_dialog), de);
+
+
+  de->invoke_weight_cases_dialog =
+    gtk_action_new ("weight-cases-dialog",
+                   _("Weights"),
+                   _("Weight cases by variable"),
+                   "pspp-weight-cases");
+
+  g_signal_connect (de->invoke_weight_cases_dialog, "activate",
+                   G_CALLBACK (weight_cases_dialog), de);
+
+
+  de->invoke_transpose_dialog =
+    gtk_action_new ("transpose-dialog",
+                   _("Transpose"),
+                   _("Transpose the cases with the variables"),
+                   NULL);
+
+
+  g_signal_connect (de->invoke_transpose_dialog, "activate",
+                   G_CALLBACK (transpose_dialog), de);
+
+
+
+  de->invoke_split_file_dialog =
+    gtk_action_new ("split-file-dialog",
+                   _("Split"),
+                   _("Split the active file"),
+                   "pspp-split-file");
+
+  g_signal_connect (de->invoke_split_file_dialog, "activate",
+                   G_CALLBACK (split_file_dialog), de);
+
+
+
+  de->invoke_sort_cases_dialog =
+    gtk_action_new ("sort-cases-dialog",
+                   _("Sort"),
+                   _("Sort cases in the active file"),
+                   "pspp-sort-cases");
+
+  g_signal_connect (de->invoke_sort_cases_dialog, "activate",
+                   G_CALLBACK (sort_cases_dialog), de);
+
+  de->invoke_select_cases_dialog =
+    gtk_action_new ("select-cases-dialog",
+                   _("Select Cases"),
+                   _("Select cases from the active file"),
+                   "pspp-select-cases");
+
+  g_signal_connect (de->invoke_select_cases_dialog, "activate",
+                   G_CALLBACK (select_cases_dialog), de);
+
+
+  de->invoke_compute_dialog =
+    gtk_action_new ("compute-dialog",
+                   _("Compute"),
+                   _("Compute new values for a variable"),
+                   "pspp-compute");
+
+  g_signal_connect (de->invoke_compute_dialog, "activate",
+                   G_CALLBACK (compute_dialog), de);
+
+  de->invoke_oneway_anova_dialog =
+    gtk_action_new ("oneway-anova",
+                   _("Oneway _ANOVA"),
+                   _("Perform one way analysis of variance"),
+                   NULL);
+
+  g_signal_connect (de->invoke_oneway_anova_dialog, "activate",
+                   G_CALLBACK (oneway_anova_dialog), de);
+
+  de->invoke_t_test_independent_samples_dialog =
+    gtk_action_new ("t-test-independent-samples",
+                   _("_Independent Samples T Test"),
+                   _("Calculate T Test for samples from independent groups"),
+                   NULL);
+
+  g_signal_connect (de->invoke_t_test_independent_samples_dialog, "activate",
+                   G_CALLBACK (t_test_independent_samples_dialog), de);
+
+
+  de->invoke_t_test_paired_samples_dialog =
+    gtk_action_new ("t-test-paired-samples",
+                   _("_Paired Samples T Test"),
+                   _("Calculate T Test for paired samples"),
+                   NULL);
+
+  g_signal_connect (de->invoke_t_test_paired_samples_dialog, "activate",
+                   G_CALLBACK (t_test_paired_samples_dialog), de);
+
+
+  de->invoke_t_test_one_sample_dialog =
+    gtk_action_new ("t-test-one-sample",
+                   _("One _Sample T Test"),
+                   _("Calculate T Test for sample from a single distribution"),
+                   NULL);
+
+  g_signal_connect (de->invoke_t_test_one_sample_dialog, "activate",
+                   G_CALLBACK (t_test_one_sample_dialog), de);
+
+
+  de->invoke_comments_dialog =
+    gtk_action_new ("commments-dialog",
+                   _("Data File Comments"),
+                   _("Commentary text for the data file"),
+                   NULL);
+
+  g_signal_connect (de->invoke_comments_dialog, "activate",
+                   G_CALLBACK (comments_dialog), de);
+
+  de->invoke_find_dialog  =
+    gtk_action_new ("find-dialog",
+                   _("Find"),
+                   _("Find Case"),
+                   "gtk-find");
+
+  g_signal_connect (de->invoke_find_dialog, "activate",
+                   G_CALLBACK (find_dialog), de);
+
+
+  de->invoke_rank_dialog  =
+    gtk_action_new ("rank-dialog",
+                   _("Ran_k Cases"),
+                   _("Rank Cases"),
+                   "pspp-rank-cases");
+
+  g_signal_connect (de->invoke_rank_dialog, "activate",
+                   G_CALLBACK (rank_dialog), de);
+
+
+  de->invoke_recode_same_dialog  =
+    gtk_action_new ("recode-same-dialog",
+                   _("Recode into _Same Variables"),
+                   _("Recode values into the same Variables"),
+                   "pspp-recode-same");
+
+  g_signal_connect (de->invoke_recode_same_dialog, "activate",
+                   G_CALLBACK (recode_same_dialog), de);
+
+
+  de->invoke_recode_different_dialog  =
+    gtk_action_new ("recode-different-dialog",
+                   _("Recode into _Different Variables"),
+                   _("Recode values into different Variables"),
+                   "pspp-recode-different");
+
+  g_signal_connect (de->invoke_recode_different_dialog, "activate",
+                   G_CALLBACK (recode_different_dialog), de);
+
+
+  de->invoke_variable_info_dialog  =
+    gtk_action_new ("variable-info-dialog",
+                   _("Variables"),
+                   _("Jump to Variable"),
+                   "pspp-goto-variable");
+
+  g_signal_connect (de->invoke_variable_info_dialog, "activate",
+                   G_CALLBACK (variable_info_dialog), de);
+
+  de->invoke_descriptives_dialog =
+    gtk_action_new ("descriptives-dialog",
+                   _("_Descriptives"),
+                   _("Calculate descriptive statistics (mean, variance, ...)"),
+                   "pspp-descriptives");
+
+  g_signal_connect (de->invoke_descriptives_dialog, "activate",
+                   G_CALLBACK (descriptives_dialog), de);
+
+
+  de->invoke_frequencies_dialog =
+    gtk_action_new ("frequencies-dialog",
+                   _("_Frequencies"),
+                   _("Generate frequency statistics"),
+                   "pspp-frequencies");
+
+  g_signal_connect (de->invoke_frequencies_dialog, "activate",
+                   G_CALLBACK (frequencies_dialog), de);
+
+  de->invoke_crosstabs_dialog =
+    gtk_action_new ("crosstabs-dialog",
+                   _("_Crosstabs"),
+                   _("Generate crosstabulations"),
+                   "pspp-crosstabs");
+
+  g_signal_connect (de->invoke_crosstabs_dialog, "activate",
+                   G_CALLBACK (crosstabs_dialog), de);
+
+
+  de->invoke_examine_dialog =
+    gtk_action_new ("examine-dialog",
+                   _("_Explore"),
+                   _("Examine Data by Factors"),
+                   "pspp-examine");
+
+  g_signal_connect (de->invoke_examine_dialog, "activate",
+                   G_CALLBACK (examine_dialog), de);
+
+
+  de->invoke_regression_dialog =
+    gtk_action_new ("regression-dialog",
+                   _("Linear _Regression"),
+                   _("Estimate parameters of the linear model"),
+                   "pspp-regression");
+
+  g_signal_connect (de->invoke_regression_dialog, "activate",
+                   G_CALLBACK (regression_dialog), de);
+
+  e->window = GTK_WINDOW (get_widget_assert (de->xml, "data_editor"));
+
+  g_signal_connect_swapped (get_widget_assert (de->xml,"file_new_data"),
+                           "activate",
+                           G_CALLBACK (gtk_action_activate),
+                           de->action_data_new);
+
+  g_signal_connect_swapped (get_widget_assert (de->xml,"file_open_data"),
+                           "activate",
+                           G_CALLBACK (gtk_action_activate),
+                           de->action_data_open);
+
+#if RECENT_LISTS_AVAILABLE
+  {
+    GtkRecentManager *rm = gtk_recent_manager_get_default ();
+    GtkWidget *recent_data = get_widget_assert (de->xml, "file_recent-data");
+    GtkWidget *recent_files = get_widget_assert (de->xml, "file_recent-files");
+    GtkWidget *recent_separator = get_widget_assert (de->xml, "file_separator1");
+
+    GtkWidget *menu = gtk_recent_chooser_menu_new_for_manager (rm);
+
+    GtkRecentFilter *filter = gtk_recent_filter_new ();
+
+    gtk_widget_show (recent_data);
+    gtk_widget_show (recent_files);
+    gtk_widget_show (recent_separator);
+
+    gtk_recent_filter_add_pattern (filter, "*.sav");
+    gtk_recent_filter_add_pattern (filter, "*.SAV");
+
+    gtk_recent_chooser_add_filter (GTK_RECENT_CHOOSER (menu), filter);
+
+    gtk_widget_set_sensitive (recent_data, TRUE);
+    g_signal_connect (menu, "selection-done",
+                     G_CALLBACK (on_recent_data_select), de);
+
+    gtk_menu_item_set_submenu (GTK_MENU_ITEM (recent_data), menu);
+
+
+    filter = gtk_recent_filter_new ();
+    menu = gtk_recent_chooser_menu_new_for_manager (rm);
+
+    gtk_recent_filter_add_pattern (filter, "*.sps");
+    gtk_recent_filter_add_pattern (filter, "*.SPS");
+
+    gtk_recent_chooser_add_filter (GTK_RECENT_CHOOSER (menu), filter);
+
+    gtk_widget_set_sensitive (recent_files, TRUE);
+    g_signal_connect (menu, "selection-done",
+                     G_CALLBACK (on_recent_files_select), de);
+
+    gtk_menu_item_set_submenu (GTK_MENU_ITEM (recent_files), menu);
+  }
+#endif
+
+  g_signal_connect (get_widget_assert (de->xml,"file_new_syntax"),
+                   "activate",
+                   G_CALLBACK (new_syntax_window),
+                   e->window);
+
+  g_signal_connect (get_widget_assert (de->xml,"file_open_syntax"),
+                   "activate",
+                   G_CALLBACK (open_syntax_window),
+                   e->window);
+
+  g_signal_connect_swapped (get_widget_assert (de->xml,"file_save"),
+                           "activate",
+                           G_CALLBACK (gtk_action_activate),
+                           de->action_data_save);
+
+  g_signal_connect_swapped (get_widget_assert (de->xml,"file_save_as"),
+                           "activate",
+                           G_CALLBACK (gtk_action_activate),
+                           de->action_data_save_as);
+
+  gtk_action_connect_proxy (de->invoke_find_dialog,
+                           get_widget_assert (de->xml, "edit_find")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_find_dialog,
+                           get_widget_assert (de->xml, "button-find")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_rank_dialog,
+                           get_widget_assert (de->xml, "transform_rank")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_recode_same_dialog,
+                           get_widget_assert (de->xml,
+                                              "transform_recode-same")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_recode_different_dialog,
+                           get_widget_assert (de->xml,
+                                              "transform_recode-different")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_weight_cases_dialog,
+                           get_widget_assert (de->xml, "data_weight-cases")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_transpose_dialog,
+                           get_widget_assert (de->xml, "data_transpose")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_split_file_dialog,
+                           get_widget_assert (de->xml, "data_split-file")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_sort_cases_dialog,
+                           get_widget_assert (de->xml, "data_sort-cases")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_select_cases_dialog,
+                           get_widget_assert (de->xml, "data_select-cases")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_compute_dialog,
+                           get_widget_assert (de->xml, "transform_compute")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_t_test_independent_samples_dialog,
+                           get_widget_assert (de->xml,
+                                              "indep-t-test")
+                           );
+
+
+  gtk_action_connect_proxy (de->invoke_t_test_paired_samples_dialog,
+                           get_widget_assert (de->xml,
+                                              "paired-t-test")
+                           );
+
+
+  gtk_action_connect_proxy (de->invoke_t_test_one_sample_dialog,
+                           get_widget_assert (de->xml,
+                                              "one-sample-t-test")
+                           );
+
+
+  gtk_action_connect_proxy (de->invoke_oneway_anova_dialog,
+                           get_widget_assert (de->xml,
+                                              "oneway-anova")
+                           );
+
+
+  gtk_action_connect_proxy (de->invoke_comments_dialog,
+                           get_widget_assert (de->xml, "utilities_comments")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_variable_info_dialog,
+                           get_widget_assert (de->xml, "utilities_variables")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_descriptives_dialog,
+                           get_widget_assert (de->xml, "analyze_descriptives")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_crosstabs_dialog,
+                           get_widget_assert (de->xml, "crosstabs")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_frequencies_dialog,
+                           get_widget_assert (de->xml, "analyze_frequencies")
+                           );
+
+
+  gtk_action_connect_proxy (de->invoke_examine_dialog,
+                           get_widget_assert (de->xml, "analyze_explore")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_regression_dialog,
+                           get_widget_assert (de->xml, "linear-regression")
+                           );
+
+  g_signal_connect (get_widget_assert (de->xml,"help_about"),
+                   "activate",
+                   G_CALLBACK (about_new),
+                   e->window);
+
+
+  g_signal_connect (get_widget_assert (de->xml,"help_reference"),
+                   "activate",
+                   G_CALLBACK (reference_manual),
+                   e->window);
+
+  g_signal_connect (data_sheet,
+                   "double-click-column",
+                   G_CALLBACK (click2column),
+                   de);
+
+  g_signal_connect (data_sheet,
+                   "select-column",
+                   G_CALLBACK (enable_delete_variables),
+                   de);
+
+  g_signal_connect (data_sheet,
+                   "select-row",
+                   G_CALLBACK (enable_delete_cases),
+                   de);
+
+
+  g_signal_connect (var_sheet,
+                   "double-click-row",
+                   GTK_SIGNAL_FUNC (click2row),
+                   de);
+
+  g_signal_connect_after (var_sheet,
+                   "select-row",
+                   G_CALLBACK (enable_delete_variables),
+                   de);
+
+  g_signal_connect (get_widget_assert (de->xml, "notebook"),
+                   "switch-page",
+                   G_CALLBACK (on_switch_sheet), de);
+
+
+  g_signal_connect (get_widget_assert (de->xml, "view_statusbar"),
+                   "activate",
+                   G_CALLBACK (status_bar_activate), de);
+
+
+  g_signal_connect (get_widget_assert (de->xml, "view_gridlines"),
+                   "activate",
+                   G_CALLBACK (grid_lines_activate), de);
+
+
+
+  g_signal_connect (get_widget_assert (de->xml, "view_data"),
+                   "activate",
+                   G_CALLBACK (data_sheet_activate), de);
+
+  g_signal_connect (get_widget_assert (de->xml, "view_variables"),
+                   "activate",
+                   G_CALLBACK (variable_sheet_activate), de);
+
+
+
+  g_signal_connect (get_widget_assert (de->xml, "view_fonts"),
+                   "activate",
+                   G_CALLBACK (fonts_activate), de);
+
+
+
+
+  gtk_action_connect_proxy (de->action_data_open,
+                           get_widget_assert (de->xml, "button-open")
+                           );
+
+  gtk_action_connect_proxy (de->action_data_save,
+                           get_widget_assert (de->xml, "button-save")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_variable_info_dialog,
+                           get_widget_assert (de->xml, "button-goto-variable")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_weight_cases_dialog,
+                           get_widget_assert (de->xml, "button-weight-cases")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_split_file_dialog,
+                           get_widget_assert (de->xml, "button-split-file")
+                           );
+
+  gtk_action_connect_proxy (de->invoke_select_cases_dialog,
+                           get_widget_assert (de->xml, "button-select-cases")
+                           );
+
+
+  g_signal_connect (get_widget_assert (de->xml, "file_quit"),
+                   "activate",
+                   G_CALLBACK (file_quit), de);
+
+  g_signal_connect (get_widget_assert (de->xml, "transform_run-pending"),
+                   "activate",
+                   G_CALLBACK (execute), de);
+
+
+  g_signal_connect (get_widget_assert (de->xml, "windows_minimise_all"),
+                   "activate",
+                   G_CALLBACK (minimise_all_windows), NULL);
+
+
+  create_data_sheet_variable_popup_menu (de);
+  create_data_sheet_cases_popup_menu (de);
+
+  g_signal_connect (G_OBJECT (data_sheet), "button-event-column",
+                   G_CALLBACK (popup_variable_menu), de);
+
+  g_signal_connect (G_OBJECT (data_sheet), "button-event-row",
+                   G_CALLBACK (popup_cases_menu), de);
+
+  return de;
+}
+
+
+/* Callback which occurs when the var sheet's row title
+   button is double clicked */
+static gboolean
+click2row (GtkWidget *w, gint row, gpointer data)
+{
+  struct data_editor *de = data;
+  GtkSheetRange visible_range;
+
+  gint current_row, current_column;
+
+  GtkWidget *data_sheet  = get_widget_assert (de->xml, "data_sheet");
+
+  data_editor_select_sheet (de, PAGE_DATA_SHEET);
+
+  gtk_sheet_get_active_cell (GTK_SHEET (data_sheet),
+                            &current_row, &current_column);
+
+  gtk_sheet_set_active_cell (GTK_SHEET (data_sheet), current_row, row);
+
+  gtk_sheet_get_visible_range (GTK_SHEET (data_sheet), &visible_range);
+
+  if ( row < visible_range.col0 || row > visible_range.coli)
+    {
+      gtk_sheet_moveto (GTK_SHEET (data_sheet),
+                       current_row, row, 0, 0);
+    }
+
+  return FALSE;
+}
+
+
+/* Callback which occurs when the data sheet's column title
+   is double clicked */
+static gboolean
+click2column (GtkWidget *w, gint col, gpointer data)
+{
+  struct data_editor *de = data;
+
+  gint current_row, current_column;
+
+  GtkWidget *var_sheet  = get_widget_assert (de->xml, "variable_sheet");
+
+  data_editor_select_sheet (de, PAGE_VAR_SHEET);
+
+  gtk_sheet_get_active_cell (GTK_SHEET (var_sheet),
+                            &current_row, &current_column);
+
+  gtk_sheet_set_active_cell (GTK_SHEET (var_sheet), col, current_column);
+
+  return FALSE;
+}
+
+
+void
+new_data_window (GtkMenuItem *menuitem, gpointer parent)
+{
+  window_create (WINDOW_DATA, NULL);
+}
+
+/* Callback for when the datasheet/varsheet is selected */
+static void
+on_switch_sheet (GtkNotebook *notebook,
+               GtkNotebookPage *page,
+               guint page_num,
+               gpointer user_data)
+{
+  struct data_editor *de = user_data;
+
+  GtkWidget *view_data = get_widget_assert (de->xml, "view_data");
+  GtkWidget *view_variables = get_widget_assert (de->xml, "view_variables");
+
+  switch (page_num)
+    {
+    case PAGE_VAR_SHEET:
+      gtk_widget_hide (view_variables);
+      gtk_widget_show (view_data);
+      gtk_action_set_sensitive (de->insert_variable, TRUE);
+      gtk_action_set_sensitive (de->insert_case, FALSE);
+      gtk_action_set_sensitive (de->invoke_goto_dialog, FALSE);
+      break;
+    case PAGE_DATA_SHEET:
+      gtk_widget_show (view_variables);
+      gtk_widget_show (view_data);
+      gtk_action_set_sensitive (de->invoke_goto_dialog, TRUE);
+      gtk_action_set_sensitive (de->insert_case, TRUE);
+      break;
+    default:
+      g_assert_not_reached ();
+      break;
+    }
+
+  update_paste_menuitem (de, page_num);
+  update_cut_copy_menuitem (de, page_num);
+}
+
+
+void
+data_editor_select_sheet (struct data_editor *de, gint page)
+{
+  gtk_notebook_set_current_page
+   (
+    GTK_NOTEBOOK (get_widget_assert (de->xml,"notebook")), page
+    );
+}
+
+
+
+static void
+status_bar_activate (GtkCheckMenuItem *menuitem, gpointer data)
+{
+  struct data_editor *de = data;
+  GtkWidget *statusbar = get_widget_assert (de->xml, "status-bar");
+
+  if ( gtk_check_menu_item_get_active (menuitem) )
+    gtk_widget_show (statusbar);
+  else
+    gtk_widget_hide (statusbar);
+}
+
+
+static void
+grid_lines_activate (GtkCheckMenuItem *menuitem, gpointer data)
+{
+  struct data_editor *de = data;
+  const bool grid_visible = gtk_check_menu_item_get_active (menuitem);
+
+  gtk_sheet_show_grid (GTK_SHEET (get_widget_assert (de->xml,
+                                                    "variable_sheet")),
+                      grid_visible);
+
+  gtk_sheet_show_grid (GTK_SHEET (get_widget_assert (de->xml, "data_sheet")),
+                      grid_visible);
+}
+
+
+
+static void
+data_sheet_activate (GtkCheckMenuItem *menuitem, gpointer data)
+{
+  struct data_editor *de = data;
+
+  data_editor_select_sheet (de, PAGE_DATA_SHEET);
+}
+
+
+static void
+variable_sheet_activate (GtkCheckMenuItem *menuitem, gpointer data)
+{
+  struct data_editor *de = data;
+
+  data_editor_select_sheet (de, PAGE_VAR_SHEET);
+}
+
+
+static void
+fonts_activate (GtkMenuItem *menuitem, gpointer data)
+{
+  struct data_editor *de = data;
+  GtkWidget *dialog =
+    gtk_font_selection_dialog_new (_("Font Selection"));
+
+  gtk_window_set_transient_for (GTK_WINDOW (dialog),
+                               GTK_WINDOW (get_widget_assert (de->xml,
+                                                              "data_editor")));
+  if ( GTK_RESPONSE_OK == gtk_dialog_run (GTK_DIALOG (dialog)) )
+    {
+      GtkSheet *data_sheet =
+       GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+      GtkSheet *var_sheet =
+       GTK_SHEET (get_widget_assert (de->xml, "variable_sheet"));
+
+      PsppireDataStore *ds = PSPPIRE_DATA_STORE (gtk_sheet_get_model (data_sheet));
+      PsppireVarStore *vs = PSPPIRE_VAR_STORE (gtk_sheet_get_model (var_sheet));
+
+      const gchar *font = gtk_font_selection_dialog_get_font_name
+       (GTK_FONT_SELECTION_DIALOG (dialog));
+
+      PangoFontDescription* font_desc =
+       pango_font_description_from_string (font);
+
+      psppire_var_store_set_font (vs, font_desc);
+      psppire_data_store_set_font (ds, font_desc);
+    }
+
+  gtk_widget_hide (dialog);
+}
+
+
+
+/* Callback for the value labels action */
+static void
+toggle_value_labels (GtkToggleAction *ta, gpointer data)
+{
+  struct data_editor *de = data;
+
+  GtkSheet *data_sheet = GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+  PsppireDataStore *ds = PSPPIRE_DATA_STORE (gtk_sheet_get_model (data_sheet));
+
+
+  psppire_data_store_show_labels (ds,
+                                 gtk_toggle_action_get_active (ta));
+}
+
+extern PsppireDataStore *the_data_store ;
+
+static void
+file_quit (GtkCheckMenuItem *menuitem, gpointer data)
+{
+  /* FIXME: Need to be more intelligent here.
+     Give the user the opportunity to save any unsaved data.
+  */
+  g_object_unref (the_data_store);
+  gtk_main_quit ();
+}
+
+static void
+delete_cases (GtkAction *action, gpointer data)
+{
+  struct data_editor *de = data;
+  GtkSheet *data_sheet =
+    GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+  GtkSheetRange range;
+
+  PsppireDataStore *data_store = PSPPIRE_DATA_STORE
+    (gtk_sheet_get_model (data_sheet) );
+
+
+  /* This shouldn't be able to happen, because the action
+     should be disabled */
+  g_return_if_fail (gtk_sheet_get_state (data_sheet)
+                   ==  GTK_SHEET_ROW_SELECTED );
+
+  gtk_sheet_get_selected_range (data_sheet, &range);
+
+  gtk_sheet_unselect_range (data_sheet);
+
+  psppire_data_store_delete_cases (data_store, range.row0,
+                                  1 + range.rowi - range.row0);
+
+}
+
+static void
+delete_variables (GtkAction *a, gpointer data)
+{
+  struct data_editor *de = data;
+  GtkSheetRange range;
+
+  GtkNotebook *notebook = GTK_NOTEBOOK (get_widget_assert (de->xml,
+                                                          "notebook"));
+
+  const gint page = gtk_notebook_get_current_page (notebook);
+
+  GtkSheet *sheet = GTK_SHEET (get_widget_assert (de->xml,
+                                                 (page == PAGE_VAR_SHEET) ?
+                                                 "variable_sheet" :
+                                                 "data_sheet"));
+
+
+  gtk_sheet_get_selected_range (sheet, &range);
+
+  switch ( page )
+    {
+    case PAGE_VAR_SHEET:
+      {
+       PsppireVarStore *vs =
+         PSPPIRE_VAR_STORE (gtk_sheet_get_model (sheet));
+
+       psppire_dict_delete_variables (vs->dict,
+                                      range.row0,
+                                      1 +
+                                      range.rowi -
+                                      range.row0 );
+      }
+      break;
+    case PAGE_DATA_SHEET:
+      {
+       PsppireDataStore *ds =
+         PSPPIRE_DATA_STORE (gtk_sheet_get_model (sheet));
+
+       psppire_dict_delete_variables (ds->dict,
+                                      range.col0,
+                                      1 +
+                                      range.coli -
+                                      range.col0 );
+      }
+      break;
+    };
+
+  gtk_sheet_unselect_range (sheet);
+}
+
+static void
+insert_case (GtkAction *action, gpointer data)
+{
+  gint current_row ;
+  struct data_editor *de = data;
+
+  GtkSheet *data_sheet =
+    GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+  PsppireDataStore *ds = PSPPIRE_DATA_STORE
+    (gtk_sheet_get_model (data_sheet) );
+
+
+  gtk_sheet_get_active_cell (data_sheet, &current_row, NULL);
+
+  if (current_row < 0) current_row = 0;
+
+  psppire_data_store_insert_new_case (ds, current_row);
+}
+
+/* Insert a new variable before the current row in the variable sheet,
+   or before the current column in the data sheet, whichever is selected */
+static void
+insert_variable (GtkAction *action, gpointer data)
+{
+  struct data_editor *de = data;
+  gint posn = -1;
+
+  GtkWidget *notebook = get_widget_assert (de->xml, "notebook");
+
+  GtkSheet *var_sheet =
+    GTK_SHEET (get_widget_assert (de->xml, "variable_sheet"));
+
+  PsppireVarStore *vs = PSPPIRE_VAR_STORE
+    (gtk_sheet_get_model (var_sheet) );
+
+  switch ( gtk_notebook_get_current_page ( GTK_NOTEBOOK (notebook)) )
+    {
+    case PAGE_VAR_SHEET:
+      posn = var_sheet->active_cell.row;
+      break;
+    case PAGE_DATA_SHEET:
+      {
+       GtkSheet *data_sheet =
+         GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+
+       if ( data_sheet->state == GTK_SHEET_COLUMN_SELECTED )
+         posn = data_sheet->range.col0;
+       else
+         posn = data_sheet->active_cell.col;
+      }
+      break;
+    default:
+      g_assert_not_reached ();
+    }
+
+  if ( posn == -1 ) posn = 0;
+
+  psppire_dict_insert_variable (vs->dict, posn, NULL);
+}
+
+/* Callback for when the dictionary changes its split variables */
+static void
+on_split_change (PsppireDict *dict, gpointer data)
+{
+  struct data_editor *de = data;
+
+  size_t n_split_vars = dict_get_split_cnt (dict->dict);
+
+  GtkWidget *split_status_area =
+    get_widget_assert (de->xml, "split-file-status-area");
+
+  if ( n_split_vars == 0 )
+    {
+      gtk_label_set_text (GTK_LABEL (split_status_area), _("No Split"));
+    }
+  else
+    {
+      gint i;
+      GString *text;
+      const struct variable *const * split_vars =
+       dict_get_split_vars (dict->dict);
+
+      text = g_string_new (_("Split by "));
+
+      for (i = 0 ; i < n_split_vars - 1; ++i )
+       {
+         g_string_append_printf (text, "%s, ", var_get_name (split_vars[i]));
+       }
+      g_string_append (text, var_get_name (split_vars[i]));
+
+      gtk_label_set_text (GTK_LABEL (split_status_area), text->str);
+
+      g_string_free (text, TRUE);
+    }
+}
+
+
+/* Callback for when the dictionary changes its filter variable */
+static void
+on_filter_change (GObject *o, gint filter_index, gpointer data)
+{
+  struct data_editor *de = data;
+  GtkWidget *filter_status_area =
+    get_widget_assert (de->xml, "filter-use-status-area");
+
+  if ( filter_index == -1 )
+    {
+      gtk_label_set_text (GTK_LABEL (filter_status_area), _("Filter off"));
+    }
+  else
+    {
+      GtkSheet *var_sheet =
+       GTK_SHEET (get_widget_assert (de->xml, "variable_sheet"));
+
+      PsppireVarStore *vs = PSPPIRE_VAR_STORE
+       (gtk_sheet_get_model (var_sheet) );
+
+      struct variable *var = psppire_dict_get_variable (vs->dict,
+                                                       filter_index);
+
+      gchar *text = g_strdup_printf (_("Filter by %s"), var_get_name (var));
+
+      gtk_label_set_text (GTK_LABEL (filter_status_area), text);
+
+      g_free (text);
+    }
+}
+
+/* Callback for when the dictionary changes its weights */
+static void
+on_weight_change (GObject *o, gint weight_index, gpointer data)
+{
+  struct data_editor *de = data;
+  GtkWidget *weight_status_area =
+    get_widget_assert (de->xml, "weight-status-area");
+
+  if ( weight_index == -1 )
+    {
+      gtk_label_set_text (GTK_LABEL (weight_status_area), _("Weights off"));
+    }
+  else
+    {
+      GtkSheet *var_sheet =
+       GTK_SHEET (get_widget_assert (de->xml, "variable_sheet"));
+
+      PsppireVarStore *vs = PSPPIRE_VAR_STORE
+       (gtk_sheet_get_model (var_sheet) );
+
+      struct variable *var = psppire_dict_get_variable (vs->dict,
+                                                       weight_index);
+
+      gchar *text = g_strdup_printf (_("Weight by %s"), var_get_name (var));
+
+      gtk_label_set_text (GTK_LABEL (weight_status_area), text);
+
+      g_free (text);
+    }
+}
+
+
+
+\f
+static void data_save_as_dialog (GtkAction *, struct data_editor *de);
+static void new_file (GtkAction *, struct editor_window *de);
+static void open_data_dialog (GtkAction *, struct data_editor *de);
+static void data_save (GtkAction *action, struct data_editor *e);
+
+
+/* Create the GtkActions and connect to their signals */
+static void
+register_data_editor_actions (struct data_editor *de)
+{
+  de->action_data_open =
+    gtk_action_new ("data-open-dialog",
+                   _("Open"),
+                   _("Open a data file"),
+                   "gtk-open");
+
+  g_signal_connect (de->action_data_open, "activate",
+                   G_CALLBACK (open_data_dialog), de);
+
+
+  de->action_data_save = gtk_action_new ("data-save",
+                                           _("Save"),
+                                           _("Save data to file"),
+                                           "gtk-save");
+
+  g_signal_connect (de->action_data_save, "activate",
+                   G_CALLBACK (data_save), de);
+
+
+
+  de->action_data_save_as = gtk_action_new ("data-save-as-dialog",
+                                           _("Save As"),
+                                           _("Save data to file"),
+                                           "gtk-save");
+
+  g_signal_connect (de->action_data_save_as, "activate",
+                   G_CALLBACK (data_save_as_dialog), de);
+
+  de->action_data_new =
+    gtk_action_new ("data-new",
+                   _("New"),
+                   _("New data file"),
+                   NULL);
+
+  g_signal_connect (de->action_data_new, "activate",
+                   G_CALLBACK (new_file), de);
+}
+
+/* Returns true if NAME has a suffix which might denote a PSPP file */
+static gboolean
+name_has_suffix (const gchar *name)
+{
+  if ( g_str_has_suffix (name, ".sav"))
+    return TRUE;
+  if ( g_str_has_suffix (name, ".SAV"))
+    return TRUE;
+  if ( g_str_has_suffix (name, ".por"))
+    return TRUE;
+  if ( g_str_has_suffix (name, ".POR"))
+    return TRUE;
+
+  return FALSE;
+}
+
+/* Append SUFFIX to the filename of DE */
+static void
+append_filename_suffix (struct data_editor *de, const gchar *suffix)
+{
+  if ( ! name_has_suffix (de->file_name))
+    {
+      gchar *s = de->file_name;
+      de->file_name = g_strconcat (de->file_name, suffix, NULL);
+      g_free (s);
+    }
+}
+
+/* Save DE to file */
+static void
+save_file (struct data_editor *de)
+{
+  struct getl_interface *sss;
+  struct string file_name ;
+
+  g_assert (de->file_name);
+
+  ds_init_cstr (&file_name, de->file_name);
+  gen_quoted_string (&file_name);
+
+  if ( de->save_as_portable )
+    {
+      append_filename_suffix (de, ".por");
+      sss = create_syntax_string_source ("EXPORT OUTFILE=%s.",
+                                        ds_cstr (&file_name));
+    }
+  else
+    {
+      append_filename_suffix (de, ".sav");
+      sss = create_syntax_string_source ("SAVE OUTFILE=%s.",
+                                        ds_cstr (&file_name));
+    }
+
+  ds_destroy (&file_name);
+
+  execute_syntax (sss);
+}
+
+
+/* Callback for data_save action.
+   If there's an existing file name, then just save,
+   otherwise prompt for a file name, then save */
+static void
+data_save (GtkAction *action, struct data_editor *de)
+{
+  if ( de->file_name)
+    save_file (de);
+  else
+    data_save_as_dialog (action, de);
+}
+
+
+/* Callback for data_save_as action. Prompt for a filename and save */
+static void
+data_save_as_dialog (GtkAction *action, struct data_editor *de)
+{
+  struct editor_window *e = (struct editor_window *) de;
+
+  GtkWidget *button_sys;
+  GtkWidget *dialog =
+    gtk_file_chooser_dialog_new (_("Save"),
+                                GTK_WINDOW (e->window),
+                                GTK_FILE_CHOOSER_ACTION_SAVE,
+                                GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+                                GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
+                                NULL);
+
+  GtkFileFilter *filter = gtk_file_filter_new ();
+  gtk_file_filter_set_name (filter, _("System Files (*.sav)"));
+  gtk_file_filter_add_pattern (filter, "*.sav");
+  gtk_file_filter_add_pattern (filter, "*.SAV");
+  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_set_name (filter, _("Portable Files (*.por) "));
+  gtk_file_filter_add_pattern (filter, "*.por");
+  gtk_file_filter_add_pattern (filter, "*.POR");
+  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_set_name (filter, _("All Files"));
+  gtk_file_filter_add_pattern (filter, "*");
+  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
+
+  {
+    GtkWidget *button_por;
+    GtkWidget *vbox = gtk_vbox_new (TRUE, 5);
+    button_sys =
+      gtk_radio_button_new_with_label (NULL, _("System File"));
+
+    button_por =
+      gtk_radio_button_new_with_label
+      (gtk_radio_button_get_group (GTK_RADIO_BUTTON(button_sys)),
+       _("Portable File"));
+
+    gtk_box_pack_start_defaults (GTK_BOX (vbox), button_sys);
+    gtk_box_pack_start_defaults (GTK_BOX (vbox), button_por);
+
+    gtk_widget_show_all (vbox);
+
+    gtk_file_chooser_set_extra_widget (GTK_FILE_CHOOSER(dialog), vbox);
+  }
+
+  switch (gtk_dialog_run (GTK_DIALOG (dialog)))
+    {
+    case GTK_RESPONSE_ACCEPT:
+      {
+       g_free (de->file_name);
+
+       de->file_name =
+         gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
+
+       de->save_as_portable =
+         ! gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button_sys));
+
+       save_file (de);
+
+       window_set_name_from_filename (e, de->file_name);
+      }
+      break;
+    default:
+      break;
+    }
+
+  gtk_widget_destroy (dialog);
+}
+
+
+/* Callback for data_new action.
+   Performs the NEW FILE command */
+static void
+new_file (GtkAction *action, struct editor_window *e)
+{
+  struct data_editor *de = (struct data_editor *) e;
+
+  struct getl_interface *sss =
+    create_syntax_string_source ("NEW FILE.");
+
+  execute_syntax (sss);
+
+  g_free (de->file_name);
+  de->file_name = NULL;
+
+  default_window_name (e);
+}
+
+
+static void
+open_data_file (const gchar *file_name, struct data_editor *de)
+{
+  struct getl_interface *sss;
+  struct string filename;
+
+  ds_init_cstr (&filename, file_name);
+
+  gen_quoted_string (&filename);
+
+  sss = create_syntax_string_source ("GET FILE=%s.",
+                                    ds_cstr (&filename));
+  ds_destroy (&filename);
+
+  if (execute_syntax (sss) )
+  {
+    window_set_name_from_filename ((struct editor_window *) de, file_name);
+    add_most_recent (file_name);
+  }
+}
+
+
+
+/* Callback for the data_open action.
+   Prompts for a filename and opens it */
+static void
+open_data_dialog (GtkAction *action, struct data_editor *de)
+{
+  struct editor_window *e = (struct editor_window *) de;
+
+  GtkWidget *dialog =
+    gtk_file_chooser_dialog_new (_("Open"),
+                                GTK_WINDOW (e->window),
+                                GTK_FILE_CHOOSER_ACTION_OPEN,
+                                GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+                                GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
+                                NULL);
+
+  GtkFileFilter *filter = gtk_file_filter_new ();
+  gtk_file_filter_set_name (filter, _("System Files (*.sav)"));
+  gtk_file_filter_add_pattern (filter, "*.sav");
+  gtk_file_filter_add_pattern (filter, "*.SAV");
+  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_set_name (filter, _("Portable Files (*.por) "));
+  gtk_file_filter_add_pattern (filter, "*.por");
+  gtk_file_filter_add_pattern (filter, "*.POR");
+  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_set_name (filter, _("All Files"));
+  gtk_file_filter_add_pattern (filter, "*");
+  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
+
+
+  if ( de->file_name)
+    {
+      gchar *dir_name = g_path_get_dirname (de->file_name);
+      gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (dialog),
+                                          dir_name);
+      free (dir_name);
+    }
+
+  switch (gtk_dialog_run (GTK_DIALOG (dialog)))
+    {
+    case GTK_RESPONSE_ACCEPT:
+      {
+       g_free (de->file_name);
+       de->file_name =
+         gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
+
+       open_data_file (de->file_name, de);
+      }
+      break;
+    default:
+      break;
+    }
+
+  gtk_widget_destroy (dialog);
+}
+
+
+
+/* Update the data_ref_entry with the reference of the active cell */
+static gint
+update_data_ref_entry (const GtkSheet *sheet, gint row, gint col, gpointer data)
+{
+  GtkEntry *datum_entry;
+  GladeXML *data_editor_xml = data;
+
+  PsppireDataStore *data_store =
+    PSPPIRE_DATA_STORE (gtk_sheet_get_model (sheet));
+
+  g_return_val_if_fail (data_editor_xml, FALSE);
+
+
+  datum_entry =
+    GTK_ENTRY (get_widget_assert (data_editor_xml,
+                                 "datum_entry"));
+
+  if (data_store)
+    {
+      const struct variable *var =
+       psppire_dict_get_variable (data_store->dict, col);
+
+      /* The entry where the reference to the current cell is displayed */
+      GtkEntry *cell_ref_entry =
+       GTK_ENTRY (get_widget_assert (data_editor_xml,
+                                     "cell_ref_entry"));
+      if ( var )
+       {
+         gchar *text = g_strdup_printf ("%d: %s", row + FIRST_CASE_NUMBER,
+                                        var_get_name (var));
+
+         gchar *s = pspp_locale_to_utf8 (text, -1, 0);
+
+         g_free (text);
+
+         gtk_entry_set_text (cell_ref_entry, s);
+
+         g_free (s);
+       }
+      else
+       goto blank_entry;
+
+      if ( var )
+       {
+         gchar *text =
+           psppire_data_store_get_string (data_store, row,
+                                          var_get_dict_index(var));
+
+         if ( ! text )
+           goto blank_entry;
+
+         g_strchug (text);
+
+         gtk_entry_set_text (datum_entry, text);
+
+         free (text);
+       }
+      else
+       goto blank_entry;
+
+    }
+
+  return FALSE;
+
+ blank_entry:
+  gtk_entry_set_text (datum_entry, "");
+
+  return FALSE;
+}
+
+
+
+
+
+static void
+do_sort (PsppireDataStore *ds, int var, gboolean descend)
+{
+  GString *string = g_string_new ("SORT CASES BY ");
+
+  const struct variable *v =
+    psppire_dict_get_variable (ds->dict, var);
+
+  g_string_append_printf (string, "%s", var_get_name (v));
+
+  if ( descend )
+    g_string_append (string, " (D)");
+
+  g_string_append (string, ".");
+
+  execute_syntax (create_syntax_string_source (string->str));
+
+  g_string_free (string, TRUE);
+}
+
+
+static void
+sort_up (GtkMenuItem *item, gpointer data)
+{
+  GtkSheet *sheet  = data;
+  GtkSheetRange range;
+  gtk_sheet_get_selected_range (sheet, &range);
+
+  do_sort (PSPPIRE_DATA_STORE (gtk_sheet_get_model(sheet)),
+          range.col0, FALSE);
+
+}
+
+static void
+sort_down (GtkMenuItem *item, gpointer data)
+{
+  GtkSheet *sheet  = data;
+  GtkSheetRange range;
+  gtk_sheet_get_selected_range (sheet, &range);
+
+  do_sort (PSPPIRE_DATA_STORE (gtk_sheet_get_model(sheet)),
+          range.col0, TRUE);
+}
+
+
+
+
+static void
+create_data_sheet_variable_popup_menu (struct data_editor *de)
+{
+  GtkSheet *sheet  = GTK_SHEET (get_widget_assert (de->xml, "data_sheet"));
+  GtkWidget *menu = gtk_menu_new ();
+
+  GtkWidget *sort_ascending =
+    gtk_menu_item_new_with_label (_("Sort Ascending"));
+
+  GtkWidget *sort_descending =
+    gtk_menu_item_new_with_label (_("Sort Descending"));
+
+
+  GtkWidget *insert_variable =
+    gtk_menu_item_new_with_label (_("Insert Variable"));
+
+  GtkWidget *clear_variable =
+    gtk_menu_item_new_with_label (_("Clear"));
+
+
+  gtk_action_connect_proxy (de->insert_variable,
+                           insert_variable );
+
+
+  gtk_action_connect_proxy (de->delete_variables,
+                           clear_variable );
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu), insert_variable);
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu),
+                        gtk_separator_menu_item_new ());
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu), clear_variable);
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu),
+                        gtk_separator_menu_item_new ());
+
+
+  g_signal_connect (G_OBJECT (sort_ascending), "activate",
+                   G_CALLBACK (sort_up), sheet);
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu), sort_ascending);
+
+
+  g_signal_connect (G_OBJECT (sort_descending), "activate",
+                   G_CALLBACK (sort_down), sheet);
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu), sort_descending);
+
+  gtk_widget_show_all (menu);
+
+
+  de->data_sheet_variable_popup_menu = GTK_MENU(menu);
+}
+
+
+static void
+create_data_sheet_cases_popup_menu (struct data_editor *de)
+{
+  GtkWidget *menu = gtk_menu_new ();
+
+  GtkWidget *insert_case =
+    gtk_menu_item_new_with_label (_("Insert Case"));
+
+  GtkWidget *delete_case =
+    gtk_menu_item_new_with_label (_("Clear"));
+
+
+  gtk_action_connect_proxy (de->insert_case,
+                           insert_case);
+
+
+  gtk_action_connect_proxy (de->delete_cases,
+                           delete_case);
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu), insert_case);
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu),
+                        gtk_separator_menu_item_new ());
+
+
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu), delete_case);
+
+
+  gtk_widget_show_all (menu);
+
+
+  de->data_sheet_cases_popup_menu = GTK_MENU (menu);
+}
+
+
+static void
+popup_variable_menu (GtkSheet *sheet, gint column,
+                    GdkEventButton *event, gpointer data)
+{
+  struct data_editor *de = data;
+
+  PsppireDataStore *data_store =
+    PSPPIRE_DATA_STORE (gtk_sheet_get_model (sheet));
+
+  const struct variable *v =
+    psppire_dict_get_variable (data_store->dict, column);
+
+  if ( v && event->button == 3)
+    {
+
+      gtk_sheet_select_column (sheet, column);
+
+      gtk_menu_popup (GTK_MENU (de->data_sheet_variable_popup_menu),
+                     NULL, NULL, NULL, NULL,
+                     event->button, event->time);
+    }
+}
+
+
+static void
+popup_cases_menu (GtkSheet *sheet, gint row,
+                 GdkEventButton *event, gpointer data)
+{
+  struct data_editor *de = data;
+
+  PsppireDataStore *data_store =
+    PSPPIRE_DATA_STORE (gtk_sheet_get_model (sheet));
+
+  if ( row <= psppire_data_store_get_case_count (data_store) &&
+       event->button == 3)
+    {
+      gtk_sheet_select_row (sheet, row);
+
+      gtk_menu_popup (GTK_MENU (de->data_sheet_cases_popup_menu),
+                     NULL, NULL, NULL, NULL,
+                     event->button, event->time);
+    }
+}
+
+
+static void
+on_edit_paste (GtkAction *a, gpointer data)
+{
+  GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
+
+  gtk_clipboard_request_contents (clipboard,
+                                 gdk_atom_intern ("UTF8_STRING", TRUE),
+                                 data_sheet_contents_received_callback,
+                                 data);
+}
+
+
+static void
+on_edit_copy (GtkMenuItem *m, gpointer data)
+{
+  struct data_editor *de = data;
+
+  GtkSheet *data_sheet = GTK_SHEET (get_widget_assert (de->xml,
+                                                      "data_sheet"));
+
+  data_sheet_set_clip (data_sheet);
+}
+
+
+
+static void
+on_edit_cut (GtkMenuItem *m, gpointer data)
+{
+  struct data_editor *de = data;
+  gint max_rows, max_columns;
+  gint r;
+  GtkSheetRange range;
+  PsppireDataStore *ds;
+  GtkSheet *data_sheet = GTK_SHEET (get_widget_assert (de->xml,
+                                                      "data_sheet"));
+
+  data_sheet_set_clip (data_sheet);
+
+
+  /* Now blank all the cells */
+  gtk_sheet_get_selected_range (data_sheet, &range);
+
+  ds = PSPPIRE_DATA_STORE (gtk_sheet_get_model (data_sheet));
+
+
+   /* If nothing selected, then use active cell */
+  if ( range.row0 < 0 || range.col0 < 0 )
+    {
+      gint row, col;
+      gtk_sheet_get_active_cell (data_sheet, &row, &col);
+
+      range.row0 = range.rowi = row;
+      range.col0 = range.coli = col;
+    }
+
+  /* The sheet range can include cells that do not include data.
+     Exclude them from the range. */
+  max_rows = psppire_data_store_get_case_count (ds);
+  if (range.rowi >= max_rows)
+    {
+      if (max_rows == 0)
+        return;
+      range.rowi = max_rows - 1;
+    }
+
+  max_columns = dict_get_var_cnt (ds->dict->dict);
+  if (range.coli >= max_columns)
+    {
+      if (max_columns == 0)
+        return;
+      range.coli = max_columns - 1;
+    }
+
+  g_return_if_fail (range.rowi >= range.row0);
+  g_return_if_fail (range.row0 >= 0);
+  g_return_if_fail (range.coli >= range.col0);
+  g_return_if_fail (range.col0 >= 0);
+
+
+  for (r = range.row0; r <= range.rowi ; ++r )
+    {
+      gint c;
+
+      for (c = range.col0 ; c <= range.coli; ++c)
+       {
+         psppire_data_store_set_string (ds, "", r, c);
+       }
+    }
+
+  /* and remove the selection */
+  gtk_sheet_unselect_range (data_sheet);
+}
+
+