+/** @param gap from the beginning of the region to the next beginning */
+/** @param end the first frame that does _not_ contain a duplicated frame */
+void
+Playlist::duplicate_until (boost::shared_ptr<Region> region, framepos_t position, framecnt_t gap, framepos_t end)
+{
+ RegionWriteLock rl (this);
+
+ while (position + region->length() - 1 < end) {
+ boost::shared_ptr<Region> copy = RegionFactory::create (region, true);
+ add_region_internal (copy, position);
+ set_layer (copy, DBL_MAX);
+ position += gap;
+ }
+
+ if (position < end) {
+ framecnt_t length = min (region->length(), end - position);
+ string name;
+ RegionFactory::region_name (name, region->name(), false);
+
+ {
+ PropertyList plist;
+
+ plist.add (Properties::start, region->start());
+ plist.add (Properties::length, length);
+ plist.add (Properties::name, name);
+
+ boost::shared_ptr<Region> sub = RegionFactory::create (region, plist);
+ add_region_internal (sub, position);
+ set_layer (sub, DBL_MAX);
+ }
+ }
+}
+
+void
+Playlist::duplicate_range (AudioRange& range, float times)
+{
+ boost::shared_ptr<Playlist> pl = copy (range.start, range.length(), true);
+ framecnt_t offset = range.end - range.start;
+ paste (pl, range.start + offset, times);
+}
+
+void
+Playlist::duplicate_ranges (std::list<AudioRange>& ranges, float /* times */)
+{
+ if (ranges.empty()) {
+ return;
+ }
+
+ framepos_t min_pos = max_framepos;
+ framepos_t max_pos = 0;
+
+ for (std::list<AudioRange>::const_iterator i = ranges.begin();
+ i != ranges.end();
+ ++i) {
+ min_pos = min (min_pos, (*i).start);
+ max_pos = max (max_pos, (*i).end);
+ }
+
+ framecnt_t offset = max_pos - min_pos;
+
+ for (list<AudioRange>::iterator i = ranges.begin(); i != ranges.end(); ++i) {
+ boost::shared_ptr<Playlist> pl = copy ((*i).start, (*i).length(), true);
+ paste (pl, (*i).start + offset, 1.0f); // times ??
+ }
+}
+