diff options
| author | Johan B. C. Engelen <jbc.engelen@swissonline.ch> | 2010-05-15 22:46:50 +0000 |
|---|---|---|
| committer | Johan Engelen <goejendaagh@zonnet.nl> | 2010-05-15 22:46:50 +0000 |
| commit | e44e9a3c58e503962e9c9b0e7078b7b143c39aed (patch) | |
| tree | e4393a162d7c1745c80b26730056ad4093654642 /src | |
| parent | A couple small bug fixes for new text toolbar widgets. (diff) | |
| download | inkscape-e44e9a3c58e503962e9c9b0e7078b7b143c39aed.tar.gz inkscape-e44e9a3c58e503962e9c9b0e7078b7b143c39aed.zip | |
lpe-knot: fix crash
Fixed bugs:
- https://launchpad.net/bugs/432523
(bzr r9421)
Diffstat (limited to 'src')
| -rw-r--r-- | src/live_effects/lpe-knot.cpp | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/src/live_effects/lpe-knot.cpp b/src/live_effects/lpe-knot.cpp index b3aa2df45..b8e9b8cf9 100644 --- a/src/live_effects/lpe-knot.cpp +++ b/src/live_effects/lpe-knot.cpp @@ -56,17 +56,19 @@ public: static std::vector<Geom::Interval> complementOf(Geom::Interval I, std::vector<Geom::Interval> domain){ std::vector<Geom::Interval> ret; - double min = domain.front().min(); - double max = domain.back().max(); - Geom::Interval I1 = Geom::Interval(min,I.min()); - Geom::Interval I2 = Geom::Interval(I.max(),max); - - for (unsigned i = 0; i<domain.size(); i++){ - boost::optional<Geom::Interval> I1i = intersect(domain.at(i),I1); - if (I1i && !I1i->isSingular()) ret.push_back(I1i.get()); - boost::optional<Geom::Interval> I2i = intersect(domain.at(i),I2); - if (I2i && !I2i->isSingular()) ret.push_back(I2i.get()); - } + if (!domain.empty()) { + double min = domain.front().min(); + double max = domain.back().max(); + Geom::Interval I1 = Geom::Interval(min,I.min()); + Geom::Interval I2 = Geom::Interval(I.max(),max); + + for (unsigned i = 0; i<domain.size(); i++){ + boost::optional<Geom::Interval> I1i = intersect(domain.at(i),I1); + if (I1i && !I1i->isSingular()) ret.push_back(I1i.get()); + boost::optional<Geom::Interval> I2i = intersect(domain.at(i),I2); + if (I2i && !I2i->isSingular()) ret.push_back(I2i.get()); + } + } return ret; } |