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Fix bug when expanding a cutline that contains another cutline...

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... rare case, indeed.
This commit is contained in:
Paul Licameli 2016-09-07 12:50:53 -04:00
parent b56ea0599b
commit 301fa337d5
1 changed files with 13 additions and 3 deletions
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16
src/WaveClip.cpp
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@ -1683,12 +1683,22 @@ bool WaveClip::ExpandCutLine(double cutLinePosition)
{
for (auto it = mCutLines.begin(); it != mCutLines.end(); ++it)
{
const auto &cutline = *it;
WaveClip *const cutline = it->get();
if (fabs(mOffset + cutline->GetOffset() - cutLinePosition) < 0.0001)
{
if (!Paste(mOffset+cutline->GetOffset(), cutline.get()))
if (!Paste(mOffset+cutline->GetOffset(), cutline))
return false;
mCutLines.erase(it); // deletes cutline!
// Now erase the cutline,
// but be careful to find it again, because Paste above may
// have modified the array of cutlines (if our cutline contained
// another cutline!), invalidating the iterator we had.
auto begin = mCutLines.begin(), end = mCutLines.end();
it = std::find_if(begin, end,
[=](const decltype(*begin) &p){ return p.get() == cutline; });
if (it != end)
mCutLines.erase(it); // deletes cutline!
else
wxASSERT(false);
return true;
}
}