OObject.h

//-*****************************************************************************
//
// Copyright (c) 2009-2013,
//  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.
//
//-*****************************************************************************
 
#ifndef Alembic_Abc_OObject_h
#define Alembic_Abc_OObject_h
 
#include <Alembic/Util/Export.h>
#include <Alembic/Abc/Foundation.h>
#include <Alembic/Abc/Base.h>
#include <Alembic/Abc/Argument.h>
#include <Alembic/Abc/OArchive.h>
 
namespace Alembic {
namespace Abc {
namespace ALEMBIC_VERSION_NS {
 
class OCompoundProperty;
 
//-*****************************************************************************
class ALEMBIC_EXPORT OObject : public Base
{
public:
    typedef OObject this_type;
    typedef OObject operator_bool_base_type;
 
    //-*************************************************************************
    // CONSTRUCTION, DESTRUCTION, ASSIGNMENT
    //-*************************************************************************

    OObject() {}

    OObject( OObject iParentObject,
             const std::string &iName,
 
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument(),
             const Argument &iArg2 = Argument() );

    OObject( AbcA::ObjectWriterPtr iPtr,
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument(),
             const Argument &iArg2 = Argument() )
      : m_object( iPtr )
    {
        // Set the error handling policy
        getErrorHandler().setPolicy(
            GetErrorHandlerPolicy( iPtr, iArg0, iArg1, iArg2 ) );
    }
 
    // Deprecated in favor of the constructor above
    OObject( AbcA::ObjectWriterPtr iPtr,
             WrapExistingFlag /* iFlag */,
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument(),
             const Argument &iArg2 = Argument() )
      : m_object( iPtr )
    {
        // Set the error handling policy
        getErrorHandler().setPolicy(
            GetErrorHandlerPolicy( iPtr, iArg0, iArg1, iArg2 ) );
    }

    OObject( OArchive & iArchive,
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument(),
             const Argument &iArg2 = Argument() )
    {
        init( iArchive, iArg0, iArg1, iArg2 );
    }
 
    // deprecated in favor of the constructor above
    OObject( OArchive & iArchive,
             TopFlag /* iTop */,
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument(),
             const Argument &iArg2 = Argument() )
    {
        init( iArchive, iArg0, iArg1, iArg2 );
    }


    virtual ~OObject();
 
    //-*************************************************************************
    // OBJECT WRITER FUNCTIONALITY
    //-*************************************************************************

    const AbcA::ObjectHeader & getHeader() const;

    const std::string &getName() const
    { return getHeader().getName(); }

    const std::string &getFullName() const
    { return getHeader().getFullName(); }

    const AbcA::MetaData &getMetaData() const
    { return getHeader().getMetaData(); }

    OArchive getArchive();

    OObject getParent();

    size_t getNumChildren();

    const AbcA::ObjectHeader & getChildHeader( size_t i );

    const AbcA::ObjectHeader * getChildHeader( const std::string &iName );

    OCompoundProperty getProperties();
 
    //-*************************************************************************
    // ADVANCED TOOLS
    // Unless you really know why you need to be using these next few
    // functions, they're probably best left alone. These functions attempt
    // to find a pointer to an existing writer, instead of creating a new one.
    //-*************************************************************************

    OObject getChild( size_t iChildIndex );

    OObject getChild( const std::string &iChildName );

    // PROXY METHODS
    // An OObject can refer to another OObject. When read in, this instance
    // will be represented by the target source hierarchy and its children.
    bool addChildInstance( OObject iTarget, const std::string& iName );
 
    //-*************************************************************************
    // ABC BASE MECHANISMS
    // These functions are used by Abc to deal with errors, rewrapping,
    // and so on.
    //-*************************************************************************

    AbcA::ObjectWriterPtr getPtr() { return m_object; }
    const AbcA::ObjectWriterPtr getPtr() const { return m_object; }

    void reset() { m_object.reset(); Base::reset(); }

    bool valid() const
    {
        return ( Base::valid() && m_object );
    }

    ALEMBIC_OPERATOR_BOOL( valid() );
 
private:
 
    void init( OArchive & iArchive,
               const Argument &iArg0,
               const Argument &iArg1,
               const Argument &iArg2 );
 
    void init( AbcA::ObjectWriterPtr iParentObject,
               const std::string &iName,
               ErrorHandler::Policy iParentPolicy,
 
               const Argument &iArg0,
               const Argument &iArg1,
               const Argument &iARg2 );
 
protected:
    AbcA::ObjectWriterPtr m_object;
};
 
} // End namespace ALEMBIC_VERSION_NS
 
using namespace ALEMBIC_VERSION_NS;
 
} // End namespace Abc
} // End namespace Alembic
 
#endif