group clocks in location UI and region editor so that they all change modes together

git-svn-id: svn://localhost/ardour2/branches/3.0@9048 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 66 insertions, 0 deletions

diff --git a/gtk2_ardour/clock_group.cc b/gtk2_ardour/clock_group.cc
new file mode 100644
index 0000000000..5a03064e85
--- /dev/null
+++ b/gtk2_ardour/clock_group.cc
@@ -0,0 +1,66 @@
+/*
+    Copyright (C) 2011 Paul Davis
+
+    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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "clock_group.h"
+
+ClockGroup::ClockGroup ()
+        : ignore_changes (false)
+        , _clock_mode (AudioClock::Frames)
+{
+}
+
+ClockGroup::~ClockGroup()
+{
+}
+
+void
+ClockGroup::add (AudioClock& clock)
+{
+        if (clocks.insert (&clock).second) {
+                clock.mode_changed.connect (sigc::bind (sigc::mem_fun (*this, &ClockGroup::one_clock_changed), &clock));
+                clock.set_mode (_clock_mode);
+        }
+}
+
+void
+ClockGroup::remove (AudioClock& clock)
+{
+        clocks.erase (&clock);
+}
+        
+void
+ClockGroup::one_clock_changed (AudioClock* clock)
+{
+        if (!ignore_changes) {
+                set_clock_mode (clock->mode());
+        }
+}
+
+void
+ClockGroup::set_clock_mode (AudioClock::Mode mode)
+{
+        _clock_mode = mode;
+
+        ignore_changes = true;
+        for (std::set<AudioClock*>::iterator c = clocks.begin(); c != clocks.end(); ++c) {
+                (*c)->set_mode (mode);
+        }
+        ignore_changes = false;
+}        
+