RegionSelection::RegionSelection ()
{
+ RegionView::RegionViewGoingAway.connect (mem_fun(*this, &RegionSelection::remove_it));
+
_current_start = 0;
_current_end = 0;
}
RegionSelection::RegionSelection (const RegionSelection& other)
{
+ RegionView::RegionViewGoingAway.connect (mem_fun(*this, &RegionSelection::remove_it));
+
for (RegionSelection::const_iterator i = other.begin(); i != other.end(); ++i) {
add (*i);
}
_current_end = other._current_end;
}
-
-
RegionSelection&
RegionSelection::operator= (const RegionSelection& other)
{
return find (begin(), end(), rv) != end();
}
-void
+bool
RegionSelection::add (RegionView* rv)
{
if (contains (rv)) {
/* we already have it */
- return;
+ return false;
}
- rv->RegionViewGoingAway.connect (mem_fun(*this, &RegionSelection::remove_it));
-
if (rv->region()->first_frame() < _current_start || empty()) {
_current_start = rv->region()->first_frame();
}
// add to layer sorted list
add_to_layer (rv);
+
+ return true;
}
void
bool
RegionSelection::remove (RegionView* rv)
{
- RegionSelection::iterator i;
-
- if ((i = find (begin(), end(), rv)) != end()) {
+ RegionSelection::iterator r;
- erase (i);
+ if ((r = find (begin(), end(), rv)) != end()) {
// remove from layer sorted list
_bylayer.remove (rv);
- if (empty()) {
+ if (size() == 1) {
+
+ /* this is the last one, so when we delete it
+ we will be empty.
+ */
_current_start = 0;
_current_end = 0;
} else {
- boost::shared_ptr<Region> region ((*i)->region());
-
+ boost::shared_ptr<Region> region ((*r)->region());
+
if (region->first_frame() == _current_start) {
/* reset current start */
nframes_t ref = max_frames;
- for (i = begin (); i != end(); ++i) {
+ for (RegionSelection::iterator i = begin (); i != end(); ++i) {
if (region->first_frame() < ref) {
ref = region->first_frame();
}
nframes_t ref = 0;
- for (i = begin (); i != end(); ++i) {
+ for (RegionSelection::iterator i = begin (); i != end(); ++i) {
if (region->first_frame() > ref) {
ref = region->first_frame();
}
}
}
+ erase (r);
+
return true;
}