-#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
-
-class wxChrono
+#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"
+
+
+// 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;
+
+// the interface of wxTimer class
+class WXDLLIMPEXP_BASE wxTimer : public wxEvtHandler
+{
+public:
+ // 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()
+ //
+ // 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);
+
+ // 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();
+
+
+ // accessors
+ // ---------
+
+ // get the object notified about the timer events
+ wxEvtHandler *GetOwner() const;
+
+ // return true if the timer is running
+ bool IsRunning() const;
+
+ // return the timer ID
+ int GetId() const;
+
+ // get the (last) timer interval in milliseconds
+ int GetInterval() const;
+
+ // return true if the timer is one shot
+ bool IsOneShot() const;
+
+protected:
+ // common part of all ctors
+ void Init();
+
+ wxTimerImpl *m_impl;
+
+ DECLARE_NO_COPY_CLASS(wxTimer)
+};
+
+// ----------------------------------------------------------------------------
+// wxTimerRunner: starts the timer in its ctor, stops in the dtor
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxTimerRunner