allow region list selection of whole file regions to select every instance of a region that has any source relationship with that whole file region (from a logic feature that came up while writing the manual)

git-svn-id: svn://localhost/ardour2/branches/3.0@13779 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 19 insertions, 0 deletions

diff --git a/libs/ardour/region.cc b/libs/ardour/region.cc
index c74ce4e419..952e8b5c9c 100644
--- a/libs/ardour/region.cc
+++ b/libs/ardour/region.cc
@@ -1407,6 +1407,25 @@ Region::source_equivalent (boost::shared_ptr<const Region> other) const
 	return true;
 }
 
+bool
+Region::any_source_equivalent (boost::shared_ptr<const Region> other) const
+{
+	if (!other) {
+		return false;
+	}
+
+	SourceList::const_iterator i;
+	SourceList::const_iterator io;
+
+	for (i = _sources.begin(), io = other->_sources.begin(); i != _sources.end() && io != other->_sources.end(); ++i, ++io) {
+		if ((*i)->id() == (*io)->id()) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
 std::string
 Region::source_string () const
 {