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UnrealEngine/Engine/Source/ThirdParty/Alembic/alembic-1.8.7/python/PyAlembic/PyICompoundProperty.cpp
2025-05-18 13:04:45 +08:00

232 lines
8.4 KiB
C++

//-*****************************************************************************
//
// Copyright (c) 2009-2012,
// Sony Pictures Imageworks Inc. and
// Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Sony Pictures Imageworks, nor
// Industrial Light & Magic, nor the names of their contributors may be used
// to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//-*****************************************************************************
#include <Foundation.h>
#include <PyIBaseProperty.h>
using namespace boost::python;
//-*****************************************************************************
class PropertyHeaderIterator
{
public:
PropertyHeaderIterator( Abc::ICompoundProperty &p )
: _p( p ), _iter( 0 ), _end( p.getNumProperties() ) {}
const AbcA::PropertyHeader& next()
{
if ( _iter >= _end )
boost::python::objects::stop_iteration_error();
return _p.getPropertyHeader( _iter++ );
}
private:
Abc::ICompoundProperty _p;
size_t _iter;
size_t _end;
};
//-*****************************************************************************
class PropertyHeaderList
{
public:
PropertyHeaderList( Abc::ICompoundProperty &p )
: _p(p) {}
Py_ssize_t len()
{
return (Py_ssize_t)_p.getNumProperties();
}
const AbcA::PropertyHeader& getItem( Py_ssize_t index )
{
return _p.getPropertyHeader( ( AbcA::index_t )index );
}
PropertyHeaderIterator* getIterator()
{
return new PropertyHeaderIterator( _p );
}
private:
Abc::ICompoundProperty _p;
};
//-*****************************************************************************
static PropertyHeaderList getPropertyHeaderList( Abc::ICompoundProperty& p)
{
return PropertyHeaderList(p);
}
//-*****************************************************************************
static object getPropertyByName( Abc::ICompoundProperty &p,
const std::string& name )
{
const AbcA::PropertyHeader* h = p.getPropertyHeader( name );
if ( !h )
{
std::stringstream stream;
stream << name;
throwPythonKeyException( stream.str().c_str() );
return object(); // Returns None object
}
else if ( h->isScalar() )
{
return_by_value::apply<Abc::IScalarProperty>::type converter;
return object (handle<>(converter (Abc::IScalarProperty (p, name))));
}
else if ( h->isArray() )
{
return_by_value::apply<Abc::IArrayProperty>::type converter;
return object (handle<>(converter (Abc::IArrayProperty (p, name))));
}
else if ( h->isCompound() )
{
return_by_value::apply<Abc::ICompoundProperty>::type converter;
return object (handle<>(converter (Abc::ICompoundProperty (p, name))));
}
throwPythonException( "Conversion error, unsupported property type" );
return object();
}
//-*****************************************************************************
static object getPropertyByIndex( Abc::ICompoundProperty &p, size_t i )
{
if ( i >= p.getNumProperties() )
{
std::stringstream stream;
stream << i;
throwPythonIndexException( stream.str().c_str() );
return object(); // Returns None object
}
const AbcA::PropertyHeader& h = p.getPropertyHeader( i );
const std::string name( h.getName() );
if ( h.isScalar() )
{
return_by_value::apply<Abc::IScalarProperty>::type converter;
return object (handle<>(converter (Abc::IScalarProperty (p, name))));
}
else if ( h.isArray() )
{
return_by_value::apply<Abc::IArrayProperty>::type converter;
return object (handle<>(converter (Abc::IArrayProperty (p, name))));
}
else if ( h.isCompound() )
{
return_by_value::apply<Abc::ICompoundProperty>::type converter;
return object (handle<>(converter (Abc::ICompoundProperty (p, name))));
}
throwPythonException( "Conversion error, unsupported property type" );
return object();
}
//-*****************************************************************************
void register_icompoundproperty()
{
// IBaseProperty
//
register_IBaseProperty<AbcA::CompoundPropertyReaderPtr>(
"IBaseProperty_Compound" );
// overloads
//
const AbcA::PropertyHeader &
( Abc::ICompoundProperty::*getHeaderByIndex )( size_t ) const = \
&Abc::ICompoundProperty::getPropertyHeader;
const AbcA::PropertyHeader *
( Abc::ICompoundProperty::*getHeaderByName )( const std::string& ) const = \
&Abc::ICompoundProperty::getPropertyHeader;
// ICompoundProperty
//
class_<Abc::ICompoundProperty,
bases<Abc::IBasePropertyT<AbcA::CompoundPropertyReaderPtr> > >(
"ICompoundProperty",
"The ICompoundProperty class is a compound property reader",
init<>( "Create an empty ICompoundProperty" ) )
.def( init<Abc::ICompoundProperty,
const std::string&,
optional<const Abc::Argument&> >(
( arg( "parent" ), arg( "name" ), arg( "argument" ) ),
"Create an ICompoundProperty with the parent IObject, name "
"and optional argument to override the ErrorHandlerPolicy" ) )
.def( "getNumProperties",
&Abc::ICompoundProperty::getNumProperties,
"Returnt the number of child properties contained in this "
"ICompoundProperty" )
.def( "getPropertyHeader",
getHeaderByIndex,
( arg( "index" ) ),
"Return the header of a child property with the given index",
return_internal_reference<>() )
.def( "getPropertyHeader",
getHeaderByName,
( arg( "name" ) ),
"Return the header of a child property with the given name",
return_value_policy<reference_existing_object>() )
.def( "getProperty",
&getPropertyByIndex,
( arg( "index" ) ),
"Return a child property with the given index" )
.def( "getProperty",
&getPropertyByName,
( arg( "name" ) ),
"Return a child property with the given name" )
.def( "getParent",
&Abc::ICompoundProperty::getParent,
"Return the parent ICompoundProperty" )
.add_property( "propertyheaders", &getPropertyHeaderList )
;
// List and Iterator for child properties
//
class_<PropertyHeaderList>
( "PropertyHeaderList", no_init )
.def( "__len__", &PropertyHeaderList::len )
.def( "__getitem__", &PropertyHeaderList::getItem,
return_internal_reference<>() )
.def( "__iter__", &PropertyHeaderList::getIterator,
return_value_policy<manage_new_object>() )
;
class_<PropertyHeaderIterator>
( "PropertyHeaderIterator", no_init )
.def( ALEMBIC_PYTHON_NEXT_NAME, &PropertyHeaderIterator::next,
return_internal_reference<1>() )
;
}