GafferScene::ConstPathMatcherDataPtr Duplicate::computeBranchSet( const ScenePath &parentPath, const IECore::InternedString &setName, const Gaffer::Context *context ) const
{
ConstPathMatcherDataPtr inputSetData = inPlug()->set( setName );
const PathMatcher &inputSet = inputSetData->readable();
if( inputSet.isEmpty() )
{
return outPlug()->setPlug()->defaultValue();
}
PathMatcher subTree = inputSet.subTree( targetPlug()->getValue() );
if( subTree.isEmpty() )
{
return outPlug()->setPlug()->defaultValue();
}
ConstInternedStringVectorDataPtr childNamesData = childNamesPlug()->getValue();
const vector<InternedString> &childNames = childNamesData->readable();
PathMatcherDataPtr resultData = new PathMatcherData;
PathMatcher &result = resultData->writable();
ScenePath prefix( 1 );
for( vector<InternedString>::const_iterator it = childNames.begin(), eIt = childNames.end(); it != eIt; ++it )
{
prefix.back() = *it;
result.addPaths( subTree, prefix );
}
return resultData;
}
bool SceneGadget::objectAt( const IECore::LineSegment3f &lineInGadgetSpace, GafferScene::ScenePlug::ScenePath &path ) const
{
std::vector<IECoreGL::HitRecord> selection;
{
ViewportGadget::SelectionScope selectionScope( lineInGadgetSpace, this, selection, IECoreGL::Selector::IDRender );
renderScene();
}
if( !selection.size() )
{
return false;
}
float depthMin = selection[0].depthMin;
unsigned int name = selection[0].name;
for( const auto &i : selection )
{
if( i.depthMin < depthMin )
{
depthMin = i.depthMin;
name = i.name;
}
}
PathMatcher paths = convertSelection( new UIntVectorData( { name } ) );
if( paths.isEmpty() )
{
return false;
}
path = *PathMatcher::Iterator( paths.begin() );
return true;
}