SelectionMultiplex.hxx

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#ifndef INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
#define INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
 
#include <com/sun/star/view/XSelectionChangeListener.hpp>
#include <com/sun/star/lang/EventObject.hpp>
#include <cppuhelper/implbase.hxx>
#include <comphelper/comphelperdllapi.h>
 
namespace com::sun::star::view { class XSelectionSupplier; }
 
//= selection helper classes
 
 
namespace comphelper
{
 
 
    //= OSelectionChangeListener
 
    class COMPHELPER_DLLPUBLIC OSelectionChangeListener
    {
        friend class OSelectionChangeMultiplexer;
 
    public:
        virtual ~OSelectionChangeListener();
 
        virtual void _selectionChanged( const css::lang::EventObject& aEvent ) = 0;
        virtual void _disposing(const css::lang::EventObject& _rSource);
    };
 
 
    //= OSelectionChangeMultiplexer
 
    class COMPHELPER_DLLPUBLIC OSelectionChangeMultiplexer final : public cppu::WeakImplHelper< css::view::XSelectionChangeListener>
    {
        friend class OSelectionChangeListener;
        css::uno::Reference< css::view::XSelectionSupplier>  m_xSet;
        OSelectionChangeListener*                            m_pListener;
        sal_Int32                                            m_nLockCount;
 
        OSelectionChangeMultiplexer(const OSelectionChangeMultiplexer&) = delete;
        OSelectionChangeMultiplexer& operator=(const OSelectionChangeMultiplexer&) = delete;
 
        virtual ~OSelectionChangeMultiplexer() override;
    public:
        OSelectionChangeMultiplexer(OSelectionChangeListener* _pListener, const  css::uno::Reference< css::view::XSelectionSupplier>& _rxSet);
 
    // XEventListener
        virtual void SAL_CALL disposing( const  css::lang::EventObject& Source ) override;
 
    // XSelectionChangeListener
        virtual void SAL_CALL selectionChanged( const css::lang::EventObject& aEvent ) override;
 
        void        lock();
        void        unlock();
        sal_Int32   locked() const { return m_nLockCount; }
    };
 
 
}   // namespace comphelper
 
 
#endif // INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
 
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