Added the ability to resize string variables from the GUI. Thanks to

[pspp-builds.git] / src / data / variable.c

diff --git a/src/data/variable.c b/src/data/variable.c
index c4122e3bd392c659063ea2faf2e061e7d56de9b6..a10a8adea7ec03cbf60fd7cde4633f8fa5c7c167 100644 (file)
--- a/src/data/variable.c
+++ b/src/data/variable.c
@@ -1,20 +1,18 @@
-/* PSPP - computes sample statistics.
+/* PSPP - a program for statistical analysis.
    Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
 
-   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 2 of the
-   License, or (at your option) any later version.
+   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.
+   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, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA. */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 #include <config.h>
 #include "variable.h"
@@ -31,6 +29,7 @@
 #include "value-labels.h"
 #include "vardict.h"
 
+#include <libpspp/misc.h>
 #include <libpspp/alloc.h>
 #include <libpspp/assertion.h>
 #include <libpspp/compiler.h>
@@ -351,6 +350,7 @@ var_get_width (const struct variable *v)
 void
 var_set_width (struct variable *v, int new_width)
 {
+  const int old_width = v->width;
   enum var_type new_type = var_type_from_width (new_width);
 
   if (mv_is_resizable (&v->miss, new_width))
@@ -384,6 +384,14 @@ var_set_width (struct variable *v, int new_width)
 
   v->width = new_width;
 
+  {
+    const int old_val_count = value_cnt_from_width (old_width);
+    const int new_val_count = value_cnt_from_width (new_width);
+
+    if ( old_val_count != new_val_count)
+        dict_var_resized (v, new_val_count - old_val_count);
+  }
+
   dict_var_changed (v);
 }