fix memory leak as Dimitri suggested

[wxWidgets.git] / include / wx / timer.h

diff --git a/include/wx/timer.h b/include/wx/timer.h
index 0b86490de622ec5674f5e44ab9ea31603bd9700c..57dd27b15a3502bc568a9f184b4c5f9561ac55b7 100644 (file)
--- a/include/wx/timer.h
+++ b/include/wx/timer.h
@@ -1,21 +1,274 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/timer.h
+// Purpose:     wxTimer, wxStopWatch and global time-related functions
+// Author:      Julian Smart (wxTimer), Sylvain Bougnoux (wxStopWatch)
+// Modified by: Vadim Zeitlin (wxTimerBase)
+//              Guillermo Rodriguez (global clean up)
+// Created:     04/01/98
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWindows team
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+

 #ifndef _WX_TIMER_H_BASE_
 #define _WX_TIMER_H_BASE_
 
 #ifndef _WX_TIMER_H_BASE_
 #define _WX_TIMER_H_BASE_
 

+#if defined(__GNUG__) && !defined(__APPLE__)
+    #pragma interface "timerbase.h"
+#endif
+
+#include "wx/setup.h"
+#include "wx/object.h"
+#include "wx/longlong.h"
+#include "wx/event.h"
+
+#if wxUSE_GUI && wxUSE_TIMER
+
+// ----------------------------------------------------------------------------
+// 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
+
+// the interface of wxTimer class
+class WXDLLEXPORT wxTimerBase : public wxObject
+{
+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
+    wxTimerBase() { Init(); SetOwner(NULL); }
+
+    // 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
+    wxTimerBase(wxEvtHandler *owner, int id = -1)
+        { Init(); SetOwner(owner, id); }
+
+    // same as ctor above
+    void SetOwner(wxEvtHandler *owner, int id = -1)
+        { m_owner = owner; m_idTimer = id; }
+
+    virtual ~wxTimerBase();
+
+    // working with the timer
+    // ----------------------
+
+    // 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
+    virtual void Stop() = 0;
+
+    // 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();
+
+    // getting info
+    // ------------
+
+    // return TRUE if the timer is running
+    virtual bool IsRunning() const = 0;
+
+    // get the (last) timer interval in the milliseconds
+    int GetInterval() const { return m_milli; }
+
+    // return TRUE if the timer is one shot
+    bool IsOneShot() const { return m_oneShot; }
+
+#if WXWIN_COMPATIBILITY_2
+    // deprecated functions
+    int Interval() const { return GetInterval(); };
+    bool OneShot() const { return IsOneShot(); }
+#endif // WXWIN_COMPATIBILITY_2
+
+protected:
+    // common part of all ctors
+    void Init() { m_oneShot = FALSE; m_milli = 0; }
+
+    wxEvtHandler *m_owner;
+    int     m_idTimer;
+
+    int     m_milli;        // the timer interval
+    bool    m_oneShot;      // TRUE if one shot
+
+    DECLARE_NO_COPY_CLASS(wxTimerBase)
+};
+
+// ----------------------------------------------------------------------------
+// wxTimer itself
+// ----------------------------------------------------------------------------
+

 #if defined(__WXMSW__)
 #if defined(__WXMSW__)

-#include "wx/msw/timer.h"
+    #include "wx/msw/timer.h"

 #elif defined(__WXMOTIF__)
 #elif defined(__WXMOTIF__)

-#include "wx/motif/timer.h"
+    #include "wx/motif/timer.h"

 #elif defined(__WXGTK__)
 #elif defined(__WXGTK__)

-#include "wx/gtk/timer.h"
-#elif defined(__WXQT__)
-#include "wx/qt/timer.h"
+    #include "wx/gtk/timer.h"
+#elif defined(__WXX11__) || defined(__WXMGL__)
+    #include "wx/generic/timer.h"

 #elif defined(__WXMAC__)
 #elif defined(__WXMAC__)

-#include "wx/mac/timer.h"
+    #include "wx/mac/timer.h"

 #elif defined(__WXPM__)
 #elif defined(__WXPM__)

-#include "wx/os2/timer.h"
-#elif defined(__WXSTUBS__)
-#include "wx/stubs/timer.h"
+    #include "wx/os2/timer.h"

 #endif
 
 #endif
 

+// ----------------------------------------------------------------------------
+// wxTimerRunner: starts the timer in its ctor, stops in the dtor
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxTimerRunner
+{
+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(int milli, bool oneShot = FALSE)
+    {
+        m_timer.Start(milli, oneShot);
+    }
+
+    ~wxTimerRunner()
+    {
+        if ( m_timer.IsRunning() )
+        {
+            m_timer.Stop();
+        }
+    }
+
+private:
+    wxTimer& m_timer;
+};
+
+// ----------------------------------------------------------------------------
+// wxTimerEvent
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxTimerEvent : public wxEvent
+{
+public:
+    wxTimerEvent(int id = 0, int interval = 0) : wxEvent(id)
+    {
+        m_eventType = wxEVT_TIMER;
+
+        m_interval = interval;
+    }
+
+    // accessors
+    int GetInterval() const { return m_interval; }
+
+    // implement the base class pure virtual
+    virtual wxEvent *Clone() const { return new wxTimerEvent(*this); }
+
+private:
+    int m_interval;
+
+    DECLARE_DYNAMIC_CLASS(wxTimerEvent)
+};
+
+typedef void (wxEvtHandler::*wxTimerEventFunction)(wxTimerEvent&);
+
+#define EVT_TIMER(id, func) \
+    DECLARE_EVENT_TABLE_ENTRY( wxEVT_TIMER, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTimerEventFunction) & func, NULL),
+
+#endif // wxUSE_GUI && wxUSE_TIMER
+
+// ----------------------------------------------------------------------------
+// wxStopWatch: measure time intervals with up to 1ms resolution
+// ----------------------------------------------------------------------------
+
+#if wxUSE_STOPWATCH
+
+class WXDLLEXPORT wxStopWatch
+{
+public:
+    // ctor starts the stop watch
+    wxStopWatch() { m_pauseCount = 0; Start(); }
+
+    // start the stop watch at the moment t0
+    void Start(long t0 = 0);
+
+    // pause the stop watch
+    void Pause()
+    {
+        if ( !m_pauseCount++ )
+            m_pause = GetElapsedTime();
+    }
+
+    // resume it
+    void Resume()
+    {
+        wxASSERT_MSG( m_pauseCount > 0,
+                      _T("Resuming stop watch which is not paused") );
+
+        if ( !--m_pauseCount )
+            Start(m_pause);
+    }
+
+    // get elapsed time since the last Start() in milliseconds
+    long Time() const;
+
+protected:
+    // returns the elapsed time since t0
+    long GetElapsedTime() const;
+
+private:
+    // the time of the last Start()
+    wxLongLong m_t0;
+
+    // the time of the last Pause() (only valid if m_pauseCount > 0)
+    long m_pause;
+
+    // if > 0, the stop watch is paused, otherwise it is running
+    int m_pauseCount;
+};
+
+#endif // wxUSE_STOPWATCH
+
+#if wxUSE_LONGLONG
+
+// Starts a global timer
+// -- DEPRECATED: use wxStopWatch instead
+void WXDLLEXPORT wxStartTimer();
+
+// Gets elapsed milliseconds since last wxStartTimer or wxGetElapsedTime
+// -- DEPRECATED: use wxStopWatch instead
+long WXDLLEXPORT wxGetElapsedTime(bool resetTimer = TRUE);
+
+#endif // wxUSE_LONGLONG
+
+// ----------------------------------------------------------------------------
+// global time functions
+// ----------------------------------------------------------------------------
+
+// Get number of seconds since local time 00:00:00 Jan 1st 1970.
+extern long WXDLLEXPORT wxGetLocalTime();
+
+// Get number of seconds since GMT 00:00:00, Jan 1st 1970.
+extern long WXDLLEXPORT wxGetUTCTime();
+
+#if wxUSE_LONGLONG
+// Get number of milliseconds since local time 00:00:00 Jan 1st 1970
+extern wxLongLong WXDLLEXPORT wxGetLocalTimeMillis();
+#endif // wxUSE_LONGLONG
+
+#define wxGetCurrentTime() wxGetLocalTime()
+

 #endif
     // _WX_TIMER_H_BASE_
 #endif
     // _WX_TIMER_H_BASE_