CompoundPropertyReader.h

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#ifndef Alembic_AbcCoreAbstract_CompoundPropertyReader_h
#define Alembic_AbcCoreAbstract_CompoundPropertyReader_h

#include <Alembic/Util/Export.h>
#include <Alembic/AbcCoreAbstract/Foundation.h>
#include <Alembic/AbcCoreAbstract/BasePropertyReader.h>
#include <Alembic/AbcCoreAbstract/ForwardDeclarations.h>
#include <Alembic/AbcCoreAbstract/PropertyHeader.h>

namespace Alembic {
namespace AbcCoreAbstract {
namespace ALEMBIC_VERSION_NS {

//-*****************************************************************************
//! A CompoundProperty is a group of other properties, possibly Simple
//! or possibly Compound. Every object has at one of these.
class ALEMBIC_EXPORT CompoundPropertyReader 
    : public BasePropertyReader
{
public:
    //! Virtual destructor
    //! ...
    virtual ~CompoundPropertyReader();

    //-*************************************************************************
    // NEW FUNCTIONS
    //-*************************************************************************

    //! Returns the number of properties read from the file
    //! ...
    virtual size_t getNumProperties() = 0;

    //! Return the header of a property by index.
    //! This will throw an exception on out-of-range access.
    virtual const PropertyHeader & getPropertyHeader( size_t i ) = 0;

    //! Return the header of a property name.
    //! This will return a NULL pointer if no header by that name is found.
    virtual const PropertyHeader *
    getPropertyHeader( const std::string &iName ) = 0;

    //! Get a Scalar Property by name..
    //! It will return an empty pointer if the property is not scalar or
    //! is not found.
    virtual ScalarPropertyReaderPtr
    getScalarProperty( const std::string &iName ) = 0;
    
    //! Get a Array Property by name..
    //! It will return an empty pointer if the property is not array or
    //! is not found.
    virtual ArrayPropertyReaderPtr
    getArrayProperty( const std::string &iName ) = 0;
    
    //! Get a Compound Property by name..
    //! It will return an empty pointer if the property is not compound or
    //! is not found.
    virtual CompoundPropertyReaderPtr
    getCompoundProperty( const std::string &iName ) = 0;
    
    //! Get a base property by name.
    //! That property can be safely upcast.
    //! This is a convenience function that uses getPropertyHeader and
    //! the various named "get" functions here.
    BasePropertyReaderPtr getProperty( const std::string &iName );

    //! Get a Scalar Property by index.
    //! It will return an empty pointer if the property is not scalar or
    //! is not found.
    //! This is convenience function that uses the above functions
    //! to get the answer.
    ScalarPropertyReaderPtr
    getScalarProperty( size_t i );
    
    //! Get a Array Property by index.
    //! It will return an empty pointer if the property is not array or
    //! is not found.
    //! This is convenience function that uses the above functions
    //! to get the answer.
    ArrayPropertyReaderPtr
    getArrayProperty( size_t i );
    
    //! Get a Compound Property by index.
    //! It will return an empty pointer if the property is not compound or
    //! is not found.
    //! This is convenience function that uses the above functions
    //! to get the answer.
    CompoundPropertyReaderPtr
    getCompoundProperty( size_t i );

    //! Get a base property by index.
    //! It is an error to call with out-of-range indices.
    //! This is a convenience function that uses getPropertyHeader and
    //! the various named "get" functions here.
    BasePropertyReaderPtr getProperty( size_t i );

};

} // End namespace ALEMBIC_VERSION_NS

using namespace ALEMBIC_VERSION_NS;

} // End namespace AbcCoreAbstract
} // End namespace Alembic

#endif