include/vcl/timer.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
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  19
  20 #ifndef INCLUDED_VCL_TIMER_HXX
  21 #define INCLUDED_VCL_TIMER_HXX
  22
  23 #include <tools/link.hxx>
  24 #include <vcl/scheduler.hxx>
  25
  26 class VCL_DLLPUBLIC Timer : public Task
  27 {
  28     Link<Timer *, void> maInvokeHandler;   ///< Callback Link
  29     sal_uInt64          mnTimeout;
  30     const bool          mbAuto;
  31
  32 protected:
  33     virtual void SetDeletionFlags() override;
  34     virtual bool ReadyForSchedule( bool bIdle, sal_uInt64 nTimeNow ) const override;
  35     virtual bool IsIdle() const override;
  36     virtual sal_uInt64 UpdateMinPeriod( sal_uInt64 nMinPeriod, sal_uInt64 nTimeNow ) const override;
  37
  38     Timer( bool bAuto, const sal_Char *pDebugName = nullptr );
  39
  40 public:
  41     Timer( const sal_Char *pDebugName = nullptr );
  42     Timer( const Timer& rTimer );
  43     virtual ~Timer() override;
  44     Timer& operator=( const Timer& rTimer );
  45
  46     /**
  47      * Calls the maInvokeHandler with the parameter this.
  48      */
  49     virtual void    Invoke() override;
  50     /**
  51      * Calls the maInvokeHandler with the parameter.
  52      *
  53      * Convenience Invoke function, mainly used to call with nullptr.
  54      *
  55      * @param arg parameter for the Link::Call function
  56      */
  57     void            Invoke( Timer *arg );
  58     void            SetInvokeHandler( const Link<Timer *, void>& rLink ) { maInvokeHandler = rLink; }
  59     void            ClearInvokeHandler() { SetInvokeHandler( Link<Timer *, void>() ); }
  60
  61     void            SetTimeout( sal_uInt64 nTimeoutMs );
  62     sal_uInt64      GetTimeout() const { return mnTimeout; }
  63     virtual void    Start() override;
  64 };
  65
  66 /// An auto-timer is a multi-shot timer re-emitting itself at
  67 /// interval until destroyed.
  68 class VCL_DLLPUBLIC AutoTimer : public Timer
  69 {
  70 public:
  71     AutoTimer( const sal_Char *pDebugName = nullptr );
  72 };
  73
  74 #endif // INCLUDED_VCL_TIMER_HXX
  75
  76 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */