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Code Issues Releases Wiki Activity

Correct TrackList::Swap -- mind the back-pointers in the tracks.

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This commit is contained in:
Paul Licameli 2016-03-14 11:18:32 -04:00
parent 4cf9e0e6d6
commit c609af3bbe
2 changed files with 18 additions and 0 deletions
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16
src/Track.cpp
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@ -754,6 +754,22 @@ void TrackList::Swap(TrackList &that)
std::swap(mDestructorDeletesTracks, that.mDestructorDeletesTracks); std::swap(mDestructorDeletesTracks, that.mDestructorDeletesTracks);
std::swap(head, that.head); std::swap(head, that.head);
std::swap(tail, that.tail); std::swap(tail, that.tail);
{
TrackListIterator iter(this);
for (Track *t = iter.First(); t; t = iter.Next()) {
t->SetOwner(NULL, NULL);
t->SetOwner(this, iter.cur);
}
}
{
TrackListIterator iter(&that);
for (Track *t = iter.First(); t; t = iter.Next()) {
t->SetOwner(NULL, NULL);
t->SetOwner(&that, iter.cur);
}
}
} }
TrackList::~TrackList() TrackList::~TrackList()

2
src/Track.h
View File

@ -252,6 +252,8 @@ class AUDACITY_DLL_API TrackListIterator /* not final */
Track *RemoveCurrent(bool deletetrack = false); // returns next Track *RemoveCurrent(bool deletetrack = false); // returns next
protected: protected:
friend TrackList;
TrackList *l; TrackList *l;
TrackListNode *cur; TrackListNode *cur;
}; };