propertycontainerhelper.hxx

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#ifndef INCLUDED_COMPHELPER_PROPERTYCONTAINERHELPER_HXX
#define INCLUDED_COMPHELPER_PROPERTYCONTAINERHELPER_HXX

#include <com/sun/star/uno/Type.hxx>
#include <com/sun/star/beans/Property.hpp>
#include <vector>
#include <comphelper/comphelperdllapi.h>


namespace comphelper
{


// infos about one single property
struct COMPHELPER_DLLPUBLIC PropertyDescription
{
    // the possibilities where a property holding object may be located
    enum class LocationType
    {
        DerivedClassRealType,     // within the derived class, it's a "real" (non-Any) type
        DerivedClassAnyType,      // within the derived class, it's a com.sun.star.uno::Any
        HoldMyself                // within m_aHoldProperties
    };
    // the location of an object holding a property value :
    union LocationAccess
    {
        void*       pDerivedClassMember;        // a pointer to a member of an object of a derived class
        sal_Int32   nOwnClassVectorIndex;       // an index within m_aHoldProperties
    };

    css::beans::Property aProperty;
    LocationType         eLocated;       // where is the object containing the value located ?
    LocationAccess       aLocation;      // access to the property value

    PropertyDescription()
        :aProperty( OUString(), -1, css::uno::Type(), 0 )
        ,eLocated( LocationType::HoldMyself )
    {
        aLocation.nOwnClassVectorIndex = -1;
    }
};


//= OPropertyContainerHelper

class COMPHELPER_DLLPUBLIC OPropertyContainerHelper
{
    typedef ::std::vector< css::uno::Any >              PropertyContainer;
    PropertyContainer   m_aHoldProperties;
        // the properties which are hold by this class' instance, not the derived one's

private:
    typedef ::std::vector< PropertyDescription >    Properties;
    typedef Properties::iterator                    PropertiesIterator;
    typedef Properties::const_iterator              ConstPropertiesIterator;
    Properties      m_aProperties;

protected:
    OPropertyContainerHelper();
    ~OPropertyContainerHelper();

    void    registerProperty(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
        void* _pPointerToMember, const css::uno::Type& _rMemberType);


    void    registerMayBeVoidProperty(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
        css::uno::Any* _pPointerToMember, const css::uno::Type& _rExpectedType);

    void    registerPropertyNoMember(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
        const css::uno::Type& _rType, css::uno::Any const & _pInitialValue);

    void    revokeProperty( sal_Int32 _nHandle );


    bool    isRegisteredProperty( sal_Int32 _nHandle ) const;

    bool    isRegisteredProperty( const OUString& _rName ) const;


    // helper for implementing OPropertySetHelper overridables
    bool    convertFastPropertyValue(
                    css::uno::Any & rConvertedValue,
                    css::uno::Any & rOldValue,
                    sal_Int32 nHandle,
                    const css::uno::Any& rValue
                );

    void        setFastPropertyValue(
                        sal_Int32 nHandle,
                        const css::uno::Any& rValue
                    );

    void        getFastPropertyValue(
                        css::uno::Any& rValue,
                        sal_Int32 nHandle
                    ) const;

// helper
    void    describeProperties(css::uno::Sequence< css::beans::Property >& /* [out] */ _rProps) const;

    const css::beans::Property&
            getProperty( const OUString& _rName ) const;

private:
    COMPHELPER_DLLPRIVATE void  implPushBackProperty(const PropertyDescription& _rProp);

    COMPHELPER_DLLPRIVATE PropertiesIterator    searchHandle(sal_Int32 _nHandle);

private:
    OPropertyContainerHelper( const OPropertyContainerHelper& ) = delete;
    OPropertyContainerHelper& operator=( const OPropertyContainerHelper& ) = delete;
};


}   // namespace comphelper


#endif // INCLUDED_COMPHELPER_PROPERTYCONTAINERHELPER_HXX

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