+
+void
+RegionFactory::clear_map ()
+{
+ if (region_list_connections) {
+ region_list_connections->drop_connections ();
+ }
+
+ {
+ Glib::Threads::Mutex::Lock lm (region_map_lock);
+ region_map.clear ();
+ _compound_associations.clear ();
+ region_name_map.clear ();
+ }
+}
+
+void
+RegionFactory::delete_all_regions ()
+{
+ RegionMap copy;
+
+ /* copy region list */
+ {
+ Glib::Threads::Mutex::Lock lm (region_map_lock);
+ copy = region_map;
+ }
+
+ /* clear existing map */
+ clear_map ();
+
+ /* tell everyone to drop references */
+ for (RegionMap::iterator i = copy.begin(); i != copy.end(); ++i) {
+ i->second->drop_references ();
+ }
+
+ /* the copy should now hold the only references, which will
+ vanish as we leave this scope, thus calling all destructors.
+ */
+}
+
+uint32_t
+RegionFactory::nregions ()
+{
+ Glib::Threads::Mutex::Lock lm (region_map_lock);
+ return region_map.size ();
+}
+
+/** Add a region to the two region name maps */
+void
+RegionFactory::add_to_region_name_maps (boost::shared_ptr<Region> region)
+{
+ update_region_name_number_map (region);
+
+ Glib::Threads::Mutex::Lock lm (region_name_maps_mutex);
+ region_name_map[region->name()] = region->id ();
+}
+
+/** Account for a region rename in the two region name maps */
+void
+RegionFactory::rename_in_region_name_maps (boost::shared_ptr<Region> region)
+{
+ update_region_name_number_map (region);
+
+ Glib::Threads::Mutex::Lock lm (region_name_maps_mutex);
+
+ map<string, PBD::ID>::iterator i = region_name_map.begin();
+ while (i != region_name_map.end() && i->second != region->id ()) {
+ ++i;
+ }
+
+ /* Erase the entry for the old name and put in a new one */
+ if (i != region_name_map.end()) {
+ region_name_map.erase (i);
+ region_name_map[region->name()] = region->id ();
+ }
+}
+
+/** Remove a region's details from the region_name_map */
+void
+RegionFactory::remove_from_region_name_map (string n)
+{
+ map<string, PBD::ID>::iterator i = region_name_map.find (n);
+ if (i != region_name_map.end ()) {
+ region_name_map.erase (i);
+ }
+}
+
+/** Update a region's entry in the region_name_number_map */
+void
+RegionFactory::update_region_name_number_map (boost::shared_ptr<Region> region)
+{
+ string::size_type const last_period = region->name().find_last_of ('.');
+
+ if (last_period != string::npos && last_period < region->name().length() - 1) {
+
+ string const base = region->name().substr (0, last_period);
+ string const number = region->name().substr (last_period + 1);
+
+ /* note that if there is no number, we get zero from atoi,
+ which is just fine
+ */
+
+ Glib::Threads::Mutex::Lock lm (region_name_maps_mutex);
+ region_name_number_map[base] = atoi (number.c_str ());
+ }
+}
+
+void
+RegionFactory::region_changed (PropertyChange const & what_changed, boost::weak_ptr<Region> w)
+{
+ boost::shared_ptr<Region> r = w.lock ();
+ if (!r) {
+ return;
+ }
+
+ if (what_changed.contains (Properties::name)) {
+ rename_in_region_name_maps (r);
+ }
+}
+
+int
+RegionFactory::region_name (string& result, string base, bool newlevel)
+{
+ char buf[16];
+ string subbase;
+
+ if (base.find("/") != string::npos) {
+ base = base.substr(base.find_last_of("/") + 1);
+ }
+
+ if (base == "") {
+
+ snprintf (buf, sizeof (buf), "%d", RegionFactory::nregions() + 1);
+ result = "region.";
+ result += buf;
+
+ } else {
+
+ if (newlevel) {
+ subbase = base;
+ } else {
+ string::size_type pos;
+
+ pos = base.find_last_of ('.');
+
+ /* pos may be npos, but then we just use entire base */
+
+ subbase = base.substr (0, pos);
+
+ }
+
+ {
+ Glib::Threads::Mutex::Lock lm (region_name_maps_mutex);
+
+ map<string,uint32_t>::iterator x;
+
+ result = subbase;
+
+ if ((x = region_name_number_map.find (subbase)) == region_name_number_map.end()) {
+ result += ".1";
+ region_name_number_map[subbase] = 1;
+ } else {
+ x->second++;
+ snprintf (buf, sizeof (buf), ".%d", x->second);
+
+ result += buf;
+ }
+ }
+ }
+
+ return 0;
+}
+
+string
+RegionFactory::compound_region_name (const string& playlist, uint32_t compound_ops, uint32_t depth, bool whole_source)
+{
+ if (whole_source) {
+ return string_compose (_("%1 compound-%2 (%3)"), playlist, compound_ops+1, depth+1);
+ } else {
+ return string_compose (_("%1 compound-%2.1 (%3)"), playlist, compound_ops+1, depth+1);
+ }
+}
+
+string
+RegionFactory::new_region_name (string old)
+{
+ string::size_type last_period;
+ uint32_t number;
+ string::size_type len = old.length() + 64;
+ string remainder;
+ char buf[len];
+
+ if ((last_period = old.find_last_of ('.')) == string::npos) {
+
+ /* no period present - add one explicitly */
+
+ old += '.';
+ last_period = old.length() - 1;
+ number = 0;
+
+ } else {
+
+ if (last_period < old.length() - 1) {
+
+ string period_to_end = old.substr (last_period+1);
+
+ /* extra material after the period */
+
+ string::size_type numerals_end = period_to_end.find_first_not_of ("0123456789");
+
+ number = atoi (period_to_end);
+
+ if (numerals_end < period_to_end.length() - 1) {
+ /* extra material after the end of the digits */
+ remainder = period_to_end.substr (numerals_end);
+ }
+
+ } else {
+ last_period = old.length();
+ number = 0;
+ }
+ }
+
+ while (number < (UINT_MAX-1)) {
+
+ string sbuf;
+
+ number++;
+
+ snprintf (buf, len, "%s%" PRIu32 "%s", old.substr (0, last_period + 1).c_str(), number, remainder.c_str());
+ sbuf = buf;
+
+ if (region_name_map.find (sbuf) == region_name_map.end ()) {
+ break;
+ }
+ }
+
+ if (number != (UINT_MAX-1)) {
+ return buf;
+ }
+
+ error << string_compose (_("cannot create new name for region \"%1\""), old) << endmsg;
+ return old;
+}
+
+void
+RegionFactory::get_regions_using_source (boost::shared_ptr<Source> s, std::set<boost::shared_ptr<Region> >& r)
+{
+ Glib::Threads::Mutex::Lock lm (region_map_lock);
+
+ for (RegionMap::iterator i = region_map.begin(); i != region_map.end(); ++i) {
+ if (i->second->uses_source (s)) {
+ r.insert (i->second);
+ }
+ }
+}
+
+void
+RegionFactory::remove_regions_using_source (boost::shared_ptr<Source> src)
+{
+ Glib::Threads::Mutex::Lock lm (region_map_lock);
+
+ RegionMap::iterator i = region_map.begin();
+ while (i != region_map.end()) {
+
+ RegionMap::iterator j = i;
+ ++j;
+
+ if (i->second->uses_source (src)) {
+ remove_from_region_name_map (i->second->name ());
+ region_map.erase (i);
+ }
+
+ i = j;
+ }
+}
+
+void
+RegionFactory::add_compound_association (boost::shared_ptr<Region> orig, boost::shared_ptr<Region> copy)
+{
+ Glib::Threads::Mutex::Lock lm (region_map_lock);
+ _compound_associations[copy] = orig;
+}