Add and use SPL::swap().

[dcpomatic.git] / src / lib / spl.h

diff --git a/src/lib/spl.h b/src/lib/spl.h
index 9637f6189b77536adb3afaeba2d958daec644737..d7c746d1e39d1121bdbfdd3886682d4d05aa7d1e 100644 (file)
--- a/src/lib/spl.h
+++ b/src/lib/spl.h
@@ -18,15 +18,20 @@
 
 */
 
+
 #ifndef DCPOMATIC_SPL_H
 #define DCPOMATIC_SPL_H
 
+
 #include "spl_entry.h"
 #include <dcp/util.h>
 #include <boost/signals2.hpp>
+#include <algorithm>
+
 
 class ContentStore;
 
+
 class SPL
 {
 public:
@@ -60,6 +65,8 @@ public:
 
        SPLEntry const & operator[] (std::size_t index) const {
                return _spl[index];
+       void swap(size_t a, size_t b) {
+               std::iter_swap(_spl.begin() + a, _spl.begin() + b);
        }
 
        void read (boost::filesystem::path path, ContentStore* store);
@@ -93,6 +100,11 @@ private:
 class SignalSPL : public SPL
 {
 public:
+       enum class Change {
+               NAME,
+               CONTENT,
+       };
+
        SignalSPL () {}
 
        SignalSPL (std::string name)
@@ -101,10 +113,10 @@ public:
 
        void set_name (std::string name) {
                SPL::set_name (name);
-               NameChanged ();
+               Changed(Change::NAME);
        }
 
-       boost::signals2::signal<void ()> NameChanged;
+       boost::signals2::signal<void (Change)> Changed;
 };
 
 #endif