/* Region management */
-string
-Session::new_region_name (string old)
-{
- string::size_type last_period;
- uint32_t number;
- string::size_type len = old.length() + 64;
- 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 {
-
- number = atoi (old.substr (last_period+1).c_str());
-
- }
-
- while (number < (UINT_MAX-1)) {
-
- const RegionFactory::RegionMap& regions (RegionFactory::regions());
- RegionFactory::RegionMap::const_iterator i;
- string sbuf;
-
- number++;
-
- snprintf (buf, len, "%s%" PRIu32, old.substr (0, last_period + 1).c_str(), number);
- sbuf = buf;
-
- for (i = regions.begin(); i != regions.end(); ++i) {
- if (i->second->name() == sbuf) {
- break;
- }
- }
-
- if (i == regions.end()) {
- break;
- }
- }
-
- if (number != (UINT_MAX-1)) {
- return buf;
- }
-
- error << string_compose (_("cannot create new name for region \"%1\""), old) << endmsg;
- return old;
-}
-
-int
-Session::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::Mutex::Lock lm (region_lock);
-
- map<string,uint32_t>::iterator x;
-
- result = subbase;
-
- if ((x = region_name_map.find (subbase)) == region_name_map.end()) {
- result += ".1";
- region_name_map[subbase] = 1;
- } else {
- x->second++;
- snprintf (buf, sizeof (buf), ".%d", x->second);
-
- result += buf;
- }
- }
- }
-
- return 0;
-}
-
-void
-Session::add_region (boost::shared_ptr<Region> region)
-{
- vector<boost::shared_ptr<Region> > v;
- v.push_back (region);
- add_regions (v);
-}
-
-void
-Session::add_regions (vector<boost::shared_ptr<Region> >& new_regions)
-{
- /* mark dirty because something has changed
- */
-
- set_dirty ();
-
- for (vector<boost::shared_ptr<Region> >::iterator ii = new_regions.begin(); ii != new_regions.end(); ++ii) {
-
- boost::shared_ptr<Region> region = *ii;
- assert (region);
-
- region->PropertyChanged.connect_same_thread (*this, boost::bind (&Session::region_changed, this, _1, boost::weak_ptr<Region>(region)));
- update_region_name_map (region);
- }
-
- if (!new_regions.empty()) {
- RegionsAdded (new_regions); /* EMIT SIGNAL */
- }
-}
-
-void
-Session::update_region_name_map (boost::shared_ptr<Region> region)
-{
- string::size_type last_period = region->name().find_last_of ('.');
-
- if (last_period != string::npos && last_period < region->name().length() - 1) {
-
- string base = region->name().substr (0, last_period);
- string number = region->name().substr (last_period+1);
- map<string,uint32_t>::iterator x;
-
- /* note that if there is no number, we get zero from atoi,
- which is just fine
- */
-
- region_name_map[base] = atoi (number);
- }
-}
-
-void
-Session::region_changed (const PropertyChange& what_changed, boost::weak_ptr<Region> weak_region)
-{
- boost::shared_ptr<Region> region (weak_region.lock ());
-
- if (!region) {
- return;
- }
-
- if (what_changed.contains (Properties::hidden)) {
- /* relay hidden changes */
- RegionHiddenChange (region);
- }
-
- if (what_changed.contains (Properties::name)) {
- update_region_name_map (region);
- }
-}
-
-void
-Session::remove_region (boost::weak_ptr<Region> weak_region)
-{
- boost::shared_ptr<Region> region (weak_region.lock ());
-
- if (!region) {
- return;
- }
-
- RegionFactory::map_remove (region);
- set_dirty();
-
- RegionRemoved(region); /* EMIT SIGNAL */
-}
-
boost::shared_ptr<Region>
Session::find_whole_file_parent (boost::shared_ptr<Region const> child) const
{
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