Added menuitem to display the PSPP reference manual.

[pspp-builds.git] / src / ui / gui / helper.c

diff --git a/src/ui/gui/helper.c b/src/ui/gui/helper.c
index d73217b3a1c788ed41d46590a39aed452af93dc8..7deb4cbb0cf0736aa3082f48fd0c609469d965b2 100644 (file)
--- a/src/ui/gui/helper.c
+++ b/src/ui/gui/helper.c
@@ -1,6 +1,8 @@
 #include <config.h>
 
+#include <glib.h>
 #include "helper.h"
+#include "message-dialog.h"
 #include <data/data-in.h>
 #include <data/data-out.h>
 #include <libpspp/message.h>
@@ -11,17 +13,20 @@
 #include <string.h>
 #include <data/settings.h>
 
+
+#include <gettext.h>
+
 /* Formats a value according to FORMAT
    The returned string must be freed when no longer required */
 gchar *
-value_to_text(union value v, struct fmt_spec format)
+value_to_text (union value v, struct fmt_spec format)
 {
   gchar *s = 0;
 
-  s = g_new(gchar, format.w + 1);
-  data_out(&v, &format, s);
+  s = g_new (gchar, format.w + 1);
+  data_out (&v, &format, s);
   s[format.w]='\0';
-  g_strchug(s);
+  g_strchug (s);
 
   return s;
 }
@@ -29,7 +34,7 @@ value_to_text(union value v, struct fmt_spec format)
 
 
 gboolean
-text_to_value(const gchar *text, union value *v,
+text_to_value (const gchar *text, union value *v,
              struct fmt_spec format)
 {
   bool ok;
@@ -40,9 +45,9 @@ text_to_value(const gchar *text, union value *v,
 
       {
        const gchar *s = text;
-       while(*s)
+       while (*s)
          {
-           if ( !isspace(*s))
+           if ( !isspace (*s))
              break;
            s++;
          }
@@ -61,24 +66,66 @@ text_to_value(const gchar *text, union value *v,
 
 
 GtkWidget *
-get_widget_assert(GladeXML *xml, const gchar *name)
+get_widget_assert (GladeXML *xml, const gchar *name)
 {
   GtkWidget *w;
-  g_assert(xml);
-  g_assert(name);
+  g_assert (xml);
+  g_assert (name);
 
-  w = glade_xml_get_widget(xml, name);
+  w = glade_xml_get_widget (xml, name);
 
   if ( !w )
-    g_warning("Widget \"%s\" could not be found\n", name);
+    g_warning ("Widget \"%s\" could not be found\n", name);
 
   return w;
 }
 
 /* Converts a string in the pspp locale to utf-8 */
 char *
-pspp_locale_to_utf8(const gchar *text, gssize len, GError **err)
+pspp_locale_to_utf8 (const gchar *text, gssize len, GError **err)
+{
+  return recode_string (CONV_PSPP_TO_UTF8, text, len);
+}
+
+#define _(msgid) gettext (msgid)
+#define N_(msgid) msgid
+
+
+static void
+give_help (void)
 {
-  return recode_string(CONV_PSPP_TO_UTF8, text, len);
+  static struct msg m = {
+    MSG_GENERAL,
+    MSG_NOTE,
+    {0, -1},
+    0,
+  };
+
+  if (! m.text)
+    m.text=g_strdup (_("Sorry. The help system hasn't yet been implemented."));
+
+  popup_message (&m);
 }
 
+void
+connect_help (GladeXML *xml)
+{
+  GList *helps = glade_xml_get_widget_prefix (xml, "help_button_");
+
+  GList *i;
+  for ( i = g_list_first (helps); i ; i = g_list_next (i))
+    g_signal_connect (GTK_WIDGET (i->data), "clicked", give_help, 0);
+}
+
+
+
+void
+reference_manual (GtkMenuItem *menu, gpointer data)
+{
+  GError *err = NULL;
+  if ( ! g_spawn_command_line_async ("yelp info:pspp", &err) )
+    {
+      msg (ME, _("Cannot open reference manual: %s"), err->message);
+    }
+  g_clear_error (&err);
+}