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;
}
void GafferSceneTest::testPathMatcherRawIterator()
{
vector<InternedString> root;
vector<InternedString> a = assign::list_of( "a" );
vector<InternedString> ab = assign::list_of( "a" )( "b" );
vector<InternedString> abc = assign::list_of( "a" )( "b" )( "c" );
PathMatcher m;
PathMatcher::RawIterator it = m.begin();
GAFFERTEST_ASSERT( it == m.end() );
m.addPath( abc );
it = m.begin();
GAFFERTEST_ASSERT( *it == root );
GAFFERTEST_ASSERT( it.exactMatch() == false );
GAFFERTEST_ASSERT( it != m.end() );
++it;
GAFFERTEST_ASSERT( *it == a );
GAFFERTEST_ASSERT( it.exactMatch() == false );
GAFFERTEST_ASSERT( it != m.end() );
++it;
GAFFERTEST_ASSERT( *it == ab );
GAFFERTEST_ASSERT( it.exactMatch() == false );
GAFFERTEST_ASSERT( it != m.end() );
++it;
GAFFERTEST_ASSERT( *it == abc );
GAFFERTEST_ASSERT( it.exactMatch() == true );
GAFFERTEST_ASSERT( it != m.end() );
++it;
GAFFERTEST_ASSERT( it == m.end() );
}
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;
}
MurmurHash SharedDataHolder<PathMatcher>::hash() const
{
IECore::MurmurHash result;
HashStack stack;
PathMatcher m = readable();
for( PathMatcher::RawIterator it = m.begin(), eIt = m.end(); it != eIt; ++it )
{
// The iterator is recursive, so we use a stack to keep
// track of where we are. Resize the stack to match our
// current depth. The required size has the +1 because
// we need a stack entry for the root item.
size_t requiredStackSize = it->size() + 1;
if( requiredStackSize > stack.size() )
{
// Going a level deeper.
stack.push( HashNodes() );
assert( stack.size() == requiredStackSize );
}
else if( requiredStackSize < stack.size() )
{
// Returning from recursion to the child nodes.
// Output the hashes for the children we visited
// and stored on the stack previously.
popHashNodes( stack, requiredStackSize, result );
}
stack.top().push_back( HashNode( it->size() ? it->back().c_str() : "", it.exactMatch() ) );
}
popHashNodes( stack, 0, result );
return result;
}
void expand( Context *context, const PathMatcher &paths, bool expandAncestors )
{
GafferScene::PathMatcherData *expandedPaths = const_cast<GafferScene::PathMatcherData *>( context->get<GafferScene::PathMatcherData>( g_expandedPathsName, nullptr ) );
if( !expandedPaths )
{
expandedPaths = new GafferScene::PathMatcherData();
context->set( g_expandedPathsName, expandedPaths );
}
GafferScene::PathMatcher &expanded = expandedPaths->writable();
bool needUpdate = false;
if( expandAncestors )
{
for( GafferScene::PathMatcher::RawIterator it = paths.begin(), eIt = paths.end(); it != eIt; ++it )
{
needUpdate |= expanded.addPath( *it );
}
}
else
{
for( GafferScene::PathMatcher::Iterator it = paths.begin(), eIt = paths.end(); it != eIt; ++it )
{
needUpdate |= expanded.addPath( *it );
}
}
if( needUpdate )
{
// We modified the expanded paths in place to avoid unecessary copying,
// so the context doesn't know they've changed. So we emit the changed
// signal ourselves
context->changedSignal()( context, g_expandedPathsName );
}
}
static void loadSetWalk( const SceneInterface *s, const InternedString &setName, PathMatcher &set, const vector<InternedString> &path )
{
if( s->hasTag( setName, SceneInterface::LocalTag ) )
{
set.addPath( path );
}
// Figure out if we need to recurse by querying descendant tags to see if they include
// anything we're interested in.
if( !s->hasTag( setName, SceneInterface::DescendantTag ) )
{
return;
}
// Recurse to the children.
SceneInterface::NameList childNames;
s->childNames( childNames );
vector<InternedString> childPath( path );
childPath.push_back( InternedString() ); // room for the child name
for( SceneInterface::NameList::const_iterator it = childNames.begin(), eIt = childNames.end(); it != eIt; ++it )
{
ConstSceneInterfacePtr child = s->child( *it );
childPath.back() = *it;
loadSetWalk( child.get(), setName, set, childPath );
}
}
// we don't actually wrap the existing init, but rather reimplement it
// here using clear() and addPath(), so that we can support a mixture
// of strings and InternedStringVectorData.
static void initWrapper( PathMatcher &m, boost::python::object paths )
{
m.clear();
for( size_t i = 0, e = len( paths ); i < e; ++i )
{
object path = paths[i];
extract<const char *> stringExtractor( path );
if( stringExtractor.check() )
{
m.addPath( stringExtractor() );
}
else
{
IECore::ConstInternedStringVectorDataPtr d = extract<IECore::ConstInternedStringVectorDataPtr>( path );
m.addPath( d->readable() );
}
}
}
static list paths( const PathMatcher &p )
{
std::vector<std::string> paths;
p.paths( paths );
list result;
for( std::vector<std::string>::const_iterator it = paths.begin(), eIt = paths.end(); it != eIt; it++ )
{
result.append( *it );
}
return result;
}
bool SceneView::expandWalk( const GafferScene::ScenePlug::ScenePath &path, size_t depth, PathMatcher &expanded, PathMatcher &selected )
{
bool result = false;
ConstInternedStringVectorDataPtr childNamesData = preprocessedInPlug<ScenePlug>()->childNames( path );
const vector<InternedString> &childNames = childNamesData->readable();
if( childNames.size() )
{
// expand ourselves to show our children, and make sure we're
// not selected - we only want selection at the leaf levels of
// our expansion.
result |= expanded.addPath( path );
result |= selected.removePath( path );
ScenePlug::ScenePath childPath = path;
childPath.push_back( InternedString() ); // room for the child name
for( vector<InternedString>::const_iterator cIt = childNames.begin(), ceIt = childNames.end(); cIt != ceIt; cIt++ )
{
childPath.back() = *cIt;
if( depth == 1 )
{
// at the bottom of the expansion - just select the child
result |= selected.addPath( childPath );
}
else
{
// continue the expansion
result |= expandWalk( childPath, depth - 1, expanded, selected );
}
}
}
else
{
// we have no children, just make sure we're selected to mark the
// leaf of the expansion.
result |= selected.addPath( path );
}
return result;
}
status_t PathMatcher :: PutPathsFromMatcher(const PathMatcher & matcher)
{
TCHECKPOINT;
for (HashtableIterator<String, PathMatcherEntry> iter(matcher.GetEntries(), HTIT_FLAG_NOREGISTER); iter.HasData(); iter++)
{
if (_entries.Put(iter.GetKey(), iter.GetValue()) == B_NO_ERROR)
{
if (iter.GetValue().GetFilter()()) _numFilters++;
}
else return B_ERROR;
}
return B_NO_ERROR;
}
void applySelectionWalk( const PathMatcher &selection, const ScenePlug::ScenePath &path, bool check )
{
const unsigned m = check ? selection.match( path ) : 0;
m_selected = m & Filter::ExactMatch;
ScenePlug::ScenePath childPath = path;
childPath.push_back( IECore::InternedString() ); // space for the child name
for( std::vector<SceneGraph *>::const_iterator it = m_children.begin(), eIt = m_children.end(); it != eIt; ++it )
{
childPath.back() = (*it)->m_name;
(*it)->applySelectionWalk( selection, childPath, m & Filter::DescendantMatch );
}
}
IECore::PathMatcher SceneGadget::convertSelection( IECore::UIntVectorDataPtr ids ) const
{
CompoundDataMap parameters = { { "selection", ids } };
if( m_selectionMask )
{
parameters["mask"] = m_selectionMask;
}
auto pathsData = static_pointer_cast<PathMatcherData>(
m_renderer->command(
"gl:querySelection",
parameters
)
);
PathMatcher result = pathsData->readable();
// Unexpanded locations are represented with
// objects named __unexpandedChildren__ to allow
// locations to have an object _and_ children.
// We want to replace any such locations with their
// parent location.
const InternedString unexpandedChildren = "__unexpandedChildren__";
vector<InternedString> parent;
PathMatcher toAdd;
PathMatcher toRemove;
for( PathMatcher::Iterator it = result.begin(), eIt = result.end(); it != eIt; ++it )
{
if( it->size() && it->back() == unexpandedChildren )
{
toRemove.addPath( *it );
parent.assign( it->begin(), it->end() - 1 );
toAdd.addPath( parent );
}
}
result.addPaths( toAdd );
result.removePaths( toRemove );
return result;
}
size_t SceneGadget::objectsAt(
const Imath::V3f &corner0InGadgetSpace,
const Imath::V3f &corner1InGadgetSpace,
IECore::PathMatcher &paths
) const
{
vector<IECoreGL::HitRecord> selection;
{
ViewportGadget::SelectionScope selectionScope( corner0InGadgetSpace, corner1InGadgetSpace, this, selection, IECoreGL::Selector::OcclusionQuery );
renderScene();
}
UIntVectorDataPtr ids = new UIntVectorData;
std::transform(
selection.begin(), selection.end(), std::back_inserter( ids->writable() ),
[]( const IECoreGL::HitRecord &h ) { return h.name; }
);
PathMatcher selectedPaths = convertSelection( ids );
paths.addPaths( selectedPaths );
return selectedPaths.size();
}
bool SceneView::expandWalk( const std::string &path, size_t depth, PathMatcher &expanded, RenderableGadget::Selection &selected )
{
bool result = false;
ScenePlug::ScenePath scenePath;
ScenePlug::stringToPath( path, scenePath );
ConstInternedStringVectorDataPtr childNamesData = preprocessedInPlug<ScenePlug>()->childNames( scenePath );
const vector<InternedString> &childNames = childNamesData->readable();
if( childNames.size() )
{
// expand ourselves to show our children, and make sure we're
// not selected - we only want selection at the leaf levels of
// our expansion.
result |= expanded.addPath( path );
result |= selected.erase( path );
for( vector<InternedString>::const_iterator cIt = childNames.begin(), ceIt = childNames.end(); cIt != ceIt; cIt++ )
{
std::string childPath( path );
if( *childPath.rbegin() != '/' )
{
childPath += '/';
}
childPath += cIt->string();
if( depth == 1 )
{
// at the bottom of the expansion - just select the child
result |= selected.insert( childPath ).second;
}
else
{
// continue the expansion
result |= expandWalk( childPath, depth - 1, expanded, selected );
}
}
}
else
{
// we have no children, just make sure we're selected to mark the
// leaf of the expansion.
result |= selected.insert( path ).second;
}
return result;
}
void GafferSceneTest::testPathMatcherIteratorPrune()
{
vector<InternedString> root;
vector<InternedString> abc = assign::list_of( "a" )( "b" )( "c" );
// Prune an empty iterator range.
PathMatcher m;
PathMatcher::Iterator it = m.begin();
GAFFERTEST_ASSERT( it == m.end() );
it.prune();
GAFFERTEST_ASSERT( it == m.end() );
// Prune the root iterator itself.
m.addPath( root );
it = m.begin();
GAFFERTEST_ASSERT( *it == root );
GAFFERTEST_ASSERT( it != m.end() );
it.prune();
GAFFERTEST_ASSERT( *it == root );
GAFFERTEST_ASSERT( it != m.end() );
++it;
GAFFERTEST_ASSERT( it == m.end() );
// As above, but actually with some
// descendants to be pruned.
m.addPath( abc );
it = m.begin();
GAFFERTEST_ASSERT( *it == root );
GAFFERTEST_ASSERT( it != m.end() );
it.prune();
GAFFERTEST_ASSERT( *it == root );
GAFFERTEST_ASSERT( it != m.end() );
++it;
GAFFERTEST_ASSERT( it == m.end() );
}
static unsigned matchInternedStringVectorData( const PathMatcher &p, const IECore::InternedStringVectorData *d )
{
return p.match( d->readable() );
}
static bool addPathInternedStringVectorData( PathMatcher &p, const IECore::InternedStringVectorData *d )
{
return p.addPath( d->readable() );
}
