Fix ArdourHTTP error reporting

[ardour.git] / gtk2_ardour / visibility_group.cc

diff --git a/gtk2_ardour/visibility_group.cc b/gtk2_ardour/visibility_group.cc
index 46a941d0fc2b97f078f0e00b5e14c18e75f69634..d0ef1dd63510a0c36b9253a4421ab724410b2d06 100644 (file)
--- a/gtk2_ardour/visibility_group.cc
+++ b/gtk2_ardour/visibility_group.cc
@@ -21,10 +21,13 @@
 #include <gtkmm/menu.h>
 #include <gtkmm/menushell.h>
 #include <gtkmm/treeview.h>
+
+#include "pbd/strsplit.h"
 #include "pbd/xml++.h"
+
 #include "visibility_group.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 using namespace std;
 
@@ -167,6 +170,52 @@ VisibilityGroup::set_state (string v)
        update ();
 }
 
+string
+VisibilityGroup::remove_element (std::string const& from, std::string const& element)
+{
+       std::vector<string> s;
+       std::string ret;
+
+       split (from, s, ',');
+       for (std::vector<string>::const_iterator i = s.begin(); i != s.end(); ++i) {
+               if ((*i) == element) {
+                       continue;
+               }
+               if (!ret.empty()) {
+                       ret += ',';
+               }
+               ret += *i;
+       }
+
+       return ret;
+}
+
+string
+VisibilityGroup::add_element (std::string const& from, std::string const& element)
+{
+       std::vector<string> s;
+       std::string ret;
+       
+       split (from, s, ',');
+
+       for (std::vector<string>::const_iterator i = s.begin(); i != s.end(); ++i) {
+               if ((*i) == element) {
+                       /* already present, just return the original */
+                       return from;
+               }
+       }
+
+       ret = from;
+
+       if (!ret.empty()) {
+               ret += ',';
+       }
+
+       ret += element;
+
+       return ret;
+}
+
 string
 VisibilityGroup::get_state_name () const
 {