shapepropertynotifier.hxx

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#ifndef INCLUDED_SVX_SHAPEPROPERTYNOTIFIER_HXX
#define INCLUDED_SVX_SHAPEPROPERTYNOTIFIER_HXX

#include <svx/svxdllapi.h>
#include <svx/shapeproperty.hxx>
#include <comphelper/multiinterfacecontainer2.hxx>
#include <rtl/ustring.hxx>

#include <memory>
#include <unordered_map>

namespace com::sun::star::beans { class XPropertyChangeListener; }
namespace com::sun::star::uno { class Any; }
namespace com::sun::star::uno { template <typename > class Reference; }
namespace osl { class Mutex; }

namespace cppu
{
    class OWeakObject;
}


namespace svx
{


    //= IPropertyValueProvider

    class SVXCORE_DLLPUBLIC IPropertyValueProvider
    {
    public:
        virtual OUString getPropertyName() const = 0;

        virtual void getCurrentValue( css::uno::Any& _out_rValue ) const = 0;

        virtual ~IPropertyValueProvider();
    };

    //= PropertyValueProvider

    class SVXCORE_DLLPUBLIC PropertyValueProvider   :public IPropertyValueProvider
    {
    public:
        PropertyValueProvider( ::cppu::OWeakObject& _rContext, const char* _pAsciiPropertyName )
            :m_rContext( _rContext )
            ,m_sPropertyName( OUString::createFromAscii( _pAsciiPropertyName ) )
        {
        }

        virtual OUString getPropertyName() const override;
        virtual void getCurrentValue( css::uno::Any& _out_rValue ) const override;

    protected:
        ::cppu::OWeakObject&    getContext() const { return m_rContext; }
        PropertyValueProvider(const PropertyValueProvider&) = delete;
        PropertyValueProvider& operator=(const PropertyValueProvider&) = delete;

    private:
        ::cppu::OWeakObject&    m_rContext;
        const OUString   m_sPropertyName;
    };


    class SVXCORE_DLLPUBLIC PropertyChangeNotifier
    {
    public:
        PropertyChangeNotifier( ::cppu::OWeakObject& _rOwner, ::osl::Mutex& _rMutex );
        ~PropertyChangeNotifier();

        // listener maintenance
        void addPropertyChangeListener( const OUString& _rPropertyName, const css::uno::Reference< css::beans::XPropertyChangeListener >& _rxListener );
        void removePropertyChangeListener( const OUString& _rPropertyName, const css::uno::Reference< css::beans::XPropertyChangeListener >& _rxListener );

        void    registerProvider( const ShapeProperty _eProperty, const std::shared_ptr<IPropertyValueProvider>& _rProvider );

        void    notifyPropertyChange( const ShapeProperty _eProperty ) const;

        void    disposing();

    private:
        PropertyChangeNotifier(const PropertyChangeNotifier&) = delete;
        PropertyChangeNotifier& operator=(const PropertyChangeNotifier&) = delete;

        struct ShapePropertyHash
        {
            size_t operator()( svx::ShapeProperty x ) const
            {
                return size_t( x );
            }
        };
        typedef std::unordered_map< ShapeProperty, std::shared_ptr<IPropertyValueProvider>, ShapePropertyHash  >
            PropertyProviders;
        ::cppu::OWeakObject&            m_rContext;
        PropertyProviders               m_aProviders;
        comphelper::OMultiTypeInterfaceContainerHelperVar2<OUString> m_aPropertyChangeListeners;
    };


}


#endif // INCLUDED_SVX_SHAPEPROPERTYNOTIFIER_HXX

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