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#ifndef SC_CHARTLOCK_HXX
#define SC_CHARTLOCK_HXX


#include <vcl/timer.hxx>

#include <cppuhelper/weakref.hxx>
#include <com/sun/star/frame/XModel.hpp>

#include <memory>

class ScDocument;

/** All current charts in the calc will be locked in constructor and unlocked in destructor.
*/
class ScChartLockGuard
{
public:
                    ScChartLockGuard( ScDocument* pDoc );
    virtual         ~ScChartLockGuard();

    void            AlsoLockThisChart( const ::com::sun::star::uno::Reference<
                        ::com::sun::star::frame::XModel >& xModel );

private:
    std::vector< ::com::sun::star::uno::WeakReference<
        ::com::sun::star::frame::XModel > > maChartModels;

    ScChartLockGuard();
    ScChartLockGuard( const ScChartLockGuard& );
};

/** Use this to lock all charts in the calc for a little time.
    They will unlock automatically unless you call StartOrContinueLocking() again.
*/
class ScTemporaryChartLock
{
public:
                    ScTemporaryChartLock( ScDocument* pDoc );
    virtual         ~ScTemporaryChartLock();

    void            StartOrContinueLocking();
    void            StopLocking();
    void            AlsoLockThisChart( const ::com::sun::star::uno::Reference<
                        ::com::sun::star::frame::XModel >& xModel );

private:
    ScDocument*                         mpDoc;
    Timer                               maTimer;
    std::auto_ptr< ScChartLockGuard >   mapScChartLockGuard;

    DECL_LINK( TimeoutHdl, Timer* );

    ScTemporaryChartLock();
    ScTemporaryChartLock( const ScTemporaryChartLock& );
};


#endif

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