X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0470b1e6fe7a49bb87756006ef9fc232e3dbaaf8..d642db66a5efc82d374b813022c72ba88bc50839:/include/wx/timer.h diff --git a/include/wx/timer.h b/include/wx/timer.h index 0a19282eca..0b9a63b082 100644 --- a/include/wx/timer.h +++ b/include/wx/timer.h @@ -1,160 +1,193 @@ ///////////////////////////////////////////////////////////////////////////// // Name: wx/timer.h -// Purpose: wxTimer class and global time-related functions +// Purpose: wxTimer, wxStopWatch and global time-related functions // Author: Julian Smart -// Modified by: +// Modified by: Vadim Zeitlin (wxTimerBase) +// Guillermo Rodriguez (global clean up) // Created: 04/01/98 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) Julian Smart +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_TIMER_H_BASE_ #define _WX_TIMER_H_BASE_ -#ifdef __GNUG__ - #pragma interface "timerbase.h" -#endif +#include "wx/defs.h" + +#if wxUSE_TIMER #include "wx/object.h" +#include "wx/longlong.h" +#include "wx/event.h" +#include "wx/stopwatch.h" // for backwards compatibility +#include "wx/utils.h" -// ---------------------------------------------------------------------------- -// wxTimer -// ---------------------------------------------------------------------------- + +// more readable flags for Start(): + +// generate notifications periodically until the timer is stopped (default) +#define wxTIMER_CONTINUOUS false + +// only send the notification once and then stop the timer +#define wxTIMER_ONE_SHOT true + +class WXDLLIMPEXP_FWD_BASE wxTimerImpl; +class WXDLLIMPEXP_FWD_BASE wxTimerEvent; + +// timer event type +wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_BASE, wxEVT_TIMER, wxTimerEvent); // the interface of wxTimer class -class WXDLLEXPORT wxTimerBase : public wxObject +class WXDLLIMPEXP_BASE wxTimer : public wxEvtHandler { public: - wxTimerBase() { m_oneShot = FALSE; m_milli = 0; } + // ctors and initializers + // ---------------------- + + // default: if you don't call SetOwner(), your only chance to get timer + // notifications is to override Notify() in the derived class + wxTimer() + { + Init(); + SetOwner(this); + } + + // ctor which allows to avoid having to override Notify() in the derived + // class: the owner will get timer notifications which can be handled with + // EVT_TIMER + wxTimer(wxEvtHandler *owner, int timerid = wxID_ANY) + { + Init(); + SetOwner(owner, timerid); + } + + // same as ctor above + void SetOwner(wxEvtHandler *owner, int timerid = wxID_ANY); + + virtual ~wxTimer(); + // working with the timer // ---------------------- + // NB: Start() and Stop() are not supposed to be overridden, they are only + // virtual for historical reasons, only Notify() can be overridden + // start the timer: if milliseconds == -1, use the same value as for the // last Start() - virtual bool Start(int milliseconds = -1, bool oneShot = FALSE) - { - if ( milliseconds != -1 ) - { - m_milli = milliseconds; - } - - m_oneShot = oneShot; + // + // it is now valid to call Start() multiple times: this just restarts the + // timer if it is already running + virtual bool Start(int milliseconds = -1, bool oneShot = false); - return TRUE; - } + // stop the timer, does nothing if the timer is not running + virtual void Stop(); + // override this in your wxTimer-derived class if you want to process timer + // messages in it, use non default ctor or SetOwner() otherwise + virtual void Notify(); - // stop the timer - virtual void Stop() = 0; - // override this in your wxTimer-derived class - virtual void Notify() = 0; + // accessors + // --------- - // getting info - // ------------ + // get the object notified about the timer events + wxEvtHandler *GetOwner() const; - // return TRUE if the timer is running - virtual bool IsRunning() const = 0; + // return true if the timer is running + bool IsRunning() const; - // get the (last) timer interval in the milliseconds - int GetInterval() const { return m_milli; } + // return the timer ID + int GetId() const; - // return TRUE if the timer is one shot - bool IsOneShot() const { return m_oneShot; } + // get the (last) timer interval in milliseconds + int GetInterval() const; -#if WXWIN_COMPATIBILITY_2 - // deprecated functions - int Interval() const { return GetInterval(); }; - bool OneShot() const { return IsOneShot(); } -#endif // WXWIN_COMPATIBILITY_2 + // return true if the timer is one shot + bool IsOneShot() const; protected: - int m_milli; // the timer interval - bool m_oneShot; // TRUE if one shot -}; + // common part of all ctors + void Init(); -#if defined(__WXMSW__) - #include "wx/msw/timer.h" -#elif defined(__WXMOTIF__) - #include "wx/motif/timer.h" -#elif defined(__WXGTK__) - #include "wx/gtk/timer.h" -#elif defined(__WXQT__) - #include "wx/qt/timer.h" -#elif defined(__WXMAC__) - #include "wx/mac/timer.h" -#elif defined(__WXPM__) - #include "wx/os2/timer.h" -#elif defined(__WXSTUBS__) - #include "wx/stubs/timer.h" -#endif + wxTimerImpl *m_impl; + + wxDECLARE_NO_COPY_CLASS(wxTimer); +}; // ---------------------------------------------------------------------------- -// wxStopWatch +// wxTimerRunner: starts the timer in its ctor, stops in the dtor // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxStopWatch +class WXDLLIMPEXP_BASE wxTimerRunner { -public: - // ctor starts the stop watch - wxStopWatch() { Start(); } +public: + wxTimerRunner(wxTimer& timer) : m_timer(timer) { } + wxTimerRunner(wxTimer& timer, int milli, bool oneShot = false) + : m_timer(timer) + { + m_timer.Start(milli, oneShot); + } - void Start(long t = 0); // (re)start it t milliseconds ago - inline void Pause(); - void Resume() { Start(m_pause); } + void Start(int milli, bool oneShot = false) + { + m_timer.Start(milli, oneShot); + } - // get the elapsed time since the last Start() or Pause() in milliseconds - long Time() const; + ~wxTimerRunner() + { + if ( m_timer.IsRunning() ) + { + m_timer.Stop(); + } + } -protected: - // returns the elapsed time since t0 - inline long GetElapsedTime() const; - private: - long m_t0; // the time of the last Start() - long m_pause; // the time of the last Pause() or 0 -}; + wxTimer& m_timer; -// the old name -#ifdef WXWIN_COMPATIBILITY_2 - typedef wxStopWatch wxChrono; -#endif // WXWIN_COMPATIBILITY_2 + wxDECLARE_NO_COPY_CLASS(wxTimerRunner); +}; // ---------------------------------------------------------------------------- -// global time functions +// wxTimerEvent // ---------------------------------------------------------------------------- -// Timer functions (milliseconds) -- use wxStopWatch instead -void WXDLLEXPORT wxStartTimer(); +class WXDLLIMPEXP_BASE wxTimerEvent : public wxEvent +{ +public: + wxTimerEvent() + : wxEvent(wxID_ANY, wxEVT_TIMER) { m_timer=NULL; } -// Gets time since last wxStartTimer or wxGetElapsedTime -- use wxStopWatch -// instead -long WXDLLEXPORT wxGetElapsedTime(bool resetTimer = TRUE); + wxTimerEvent(wxTimer& timer) + : wxEvent(timer.GetId(), wxEVT_TIMER), + m_timer(&timer) + { + SetEventObject(timer.GetOwner()); + } -// Get the local time -bool WXDLLEXPORT wxGetLocalTime(long *timeZone, int *dstObserved); + // accessors + int GetInterval() const { return m_timer->GetInterval(); } + wxTimer& GetTimer() const { return *m_timer; } -// Get number of seconds since 00:00:00 GMT, Jan 1st 1970. -long WXDLLEXPORT wxGetCurrentTime(); + // implement the base class pure virtual + virtual wxEvent *Clone() const { return new wxTimerEvent(*this); } + virtual wxEventCategory GetEventCategory() const { return wxEVT_CATEGORY_TIMER; } -// Get number of milliseconds since 00:00:00 GMT, Jan 1st 1970. -long WXDLLEXPORT wxGetCurrentMTime(); +private: + wxTimer* m_timer; -// ---------------------------------------------------------------------------- -// inline functions -// ---------------------------------------------------------------------------- + DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxTimerEvent) +}; -inline long wxStopWatch::GetElapsedTime() const -{ - return wxGetCurrentMTime() - m_t0; -} +typedef void (wxEvtHandler::*wxTimerEventFunction)(wxTimerEvent&); -inline void wxStopWatch::Pause() -{ - m_pause = GetElapsedTime(); -} +#define wxTimerEventHandler(func) \ + wxEVENT_HANDLER_CAST(wxTimerEventFunction, func) + +#define EVT_TIMER(timerid, func) \ + wx__DECLARE_EVT1(wxEVT_TIMER, timerid, wxTimerEventHandler(func)) + +#endif // wxUSE_TIMER -#endif - // _WX_TIMER_H_BASE_ +#endif // _WX_TIMER_H_BASE_