+/* A GtkTreeCellDataFunc which sets the icon appropriate to the type
+ of variable */
+static void
+var_icon_cell_data_func (GtkTreeViewColumn *col,
+ GtkCellRenderer *cell,
+ GtkTreeModel *model,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ struct variable *var;
+ gtk_tree_model_get (model, iter, DICT_TVM_COL_VAR, &var, -1);
+
+ if ( var_is_alpha (var))
+ {
+ g_object_set (cell, "stock-id", "var-string", NULL);
+ }
+ else
+ {
+ const struct fmt_spec *fs = var_get_write_format (var);
+ int cat = fmt_get_category (fs->type);
+ switch ( var_get_measure (var))
+ {
+ case MEASURE_NOMINAL:
+ g_object_set (cell, "stock-id", "var-nominal", NULL);
+ break;
+ case MEASURE_ORDINAL:
+ g_object_set (cell, "stock-id", "var-ordinal", NULL);
+ break;
+ case MEASURE_SCALE:
+ if ( ( FMT_CAT_DATE | FMT_CAT_TIME ) & cat )
+ g_object_set (cell, "stock-id", "var-date-scale", NULL);
+ else
+ g_object_set (cell, "stock-id", "var-scale", NULL);
+ break;
+ default:
+ g_assert_not_reached ();
+ };
+ }
+}
+
+
+void
+get_base_model (GtkTreeModel *top_model, GtkTreeIter *top_iter,
+ GtkTreeModel **model, GtkTreeIter *iter
+ )
+{
+ *model = top_model;
+ *iter = *top_iter;
+ while (GTK_IS_TREE_MODEL_FILTER (*model))
+ {
+ GtkTreeIter parent_iter = *iter;
+ GtkTreeModelFilter *parent_model = GTK_TREE_MODEL_FILTER (*model);
+
+ *model = gtk_tree_model_filter_get_model (parent_model);
+
+ gtk_tree_model_filter_convert_iter_to_child_iter (parent_model,
+ iter,
+ &parent_iter);
+ }
+
+ g_assert (PSPPIRE_IS_DICT (*model));
+}
+
+/* A GtkTreeCellDataFunc which renders the name and/or label of the
+ variable */
+static void
+var_description_cell_data_func (GtkTreeViewColumn *col,
+ GtkCellRenderer *cell,
+ GtkTreeModel *top_model,
+ GtkTreeIter *top_iter,
+ gpointer data)
+{
+ struct variable *var;
+ GtkTreeIter iter;
+ GtkTreeModel *model;
+
+
+ get_base_model (top_model, top_iter, &model, &iter);
+
+ g_assert (PSPPIRE_IS_DICT (model));
+
+
+ gtk_tree_model_get (model,
+ &iter, DICT_TVM_COL_VAR, &var, -1);
+
+ if ( var_has_label (var))
+ {
+ gchar *text = g_markup_printf_escaped (
+ "<span stretch=\"condensed\">%s</span>",
+ var_get_label (var));
+
+
+ char *utf8 = pspp_locale_to_utf8 (text, -1, NULL);
+
+ g_free (text);
+ g_object_set (cell, "markup", utf8, NULL);
+ g_free (utf8);
+ }
+ else
+ {
+ g_object_set (cell, "text", var_get_name (var), NULL);
+ }
+}
+
+
+#if GTK_CHECK_VERSION (2, 12, 0)
+/* Sets the tooltip to be the name of the variable under the cursor */
+static gboolean
+set_tooltip_for_variable (GtkTreeView *treeview,
+ gint x,
+ gint y,
+ gboolean keyboard_mode,
+ GtkTooltip *tooltip,
+ gpointer user_data)
+
+{
+ gint bx, by;
+ GtkTreeIter iter;
+ GtkTreePath *path;
+ GtkTreeModel *tree_model;
+ struct variable *var = NULL;
+ gboolean ok;
+
+
+ gtk_tree_view_convert_widget_to_bin_window_coords (treeview,
+ x, y, &bx, &by);
+
+ if (!gtk_tree_view_get_path_at_pos (treeview, bx, by,
+ &path, NULL, NULL, NULL))
+ return FALSE;
+
+ tree_model = gtk_tree_view_get_model (treeview);
+
+
+ gtk_tree_view_set_tooltip_row (treeview, tooltip, path);
+
+ ok = gtk_tree_model_get_iter (tree_model, &iter, path);
+
+ gtk_tree_path_free (path);
+ if (!ok)
+ return FALSE;
+
+
+ gtk_tree_model_get (tree_model, &iter, DICT_TVM_COL_VAR, &var, -1);
+
+ if ( ! var_has_label (var))
+ return FALSE;
+
+ gtk_tooltip_set_text (tooltip, var_get_name (var));
+
+ return TRUE;
+}
+#endif
+
+ /* Sets up TREEVIEW to display the variables of DICT.