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[wxWidgets.git] / include / wx / stopwatch.h
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1/////////////////////////////////////////////////////////////////////////////
2// Name: wx/stopwatch.h
3// Purpose: wxStopWatch and global time-related functions
4// Author: Julian Smart (wxTimer), Sylvain Bougnoux (wxStopWatch)
5// Created: 26.06.03 (extracted from wx/timer.h)
6// RCS-ID: $Id$
77ffb593 7// Copyright: (c) 1998-2003 wxWidgets team
65571936 8// Licence: wxWindows licence
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9/////////////////////////////////////////////////////////////////////////////
10
11#ifndef _WX_STOPWATCH_H_
12#define _WX_STOPWATCH_H_
d5b12ad9 13
2ecf902b 14#include "wx/defs.h"
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VS
15#include "wx/longlong.h"
16
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17// ----------------------------------------------------------------------------
18// wxStopWatch: measure time intervals with up to 1ms resolution
19// ----------------------------------------------------------------------------
20
21#if wxUSE_STOPWATCH
22
bddd7a8d 23class WXDLLIMPEXP_BASE wxStopWatch
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24{
25public:
26 // ctor starts the stop watch
27 wxStopWatch() { m_pauseCount = 0; Start(); }
28
29 // start the stop watch at the moment t0
30 void Start(long t0 = 0);
31
32 // pause the stop watch
33 void Pause()
34 {
35 if ( !m_pauseCount++ )
36 m_pause = GetElapsedTime();
37 }
38
39 // resume it
40 void Resume()
41 {
42 wxASSERT_MSG( m_pauseCount > 0,
43 _T("Resuming stop watch which is not paused") );
44
45 if ( !--m_pauseCount )
46 Start(m_pause);
47 }
48
49 // get elapsed time since the last Start() in milliseconds
50 long Time() const;
51
52protected:
53 // returns the elapsed time since t0
54 long GetElapsedTime() const;
55
56private:
57 // the time of the last Start()
58 wxLongLong m_t0;
59
60 // the time of the last Pause() (only valid if m_pauseCount > 0)
61 long m_pause;
62
63 // if > 0, the stop watch is paused, otherwise it is running
64 int m_pauseCount;
65};
66
67#endif // wxUSE_STOPWATCH
68
69#if wxUSE_LONGLONG
70
71// Starts a global timer
72// -- DEPRECATED: use wxStopWatch instead
bddd7a8d 73void WXDLLIMPEXP_BASE wxStartTimer();
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74
75// Gets elapsed milliseconds since last wxStartTimer or wxGetElapsedTime
76// -- DEPRECATED: use wxStopWatch instead
d775fa82 77long WXDLLIMPEXP_BASE wxGetElapsedTime(bool resetTimer = true);
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78
79#endif // wxUSE_LONGLONG
80
81// ----------------------------------------------------------------------------
82// global time functions
83// ----------------------------------------------------------------------------
84
85// Get number of seconds since local time 00:00:00 Jan 1st 1970.
bddd7a8d 86extern long WXDLLIMPEXP_BASE wxGetLocalTime();
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87
88// Get number of seconds since GMT 00:00:00, Jan 1st 1970.
bddd7a8d 89extern long WXDLLIMPEXP_BASE wxGetUTCTime();
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90
91#if wxUSE_LONGLONG
92// Get number of milliseconds since local time 00:00:00 Jan 1st 1970
bddd7a8d 93extern wxLongLong WXDLLIMPEXP_BASE wxGetLocalTimeMillis();
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94#endif // wxUSE_LONGLONG
95
96#define wxGetCurrentTime() wxGetLocalTime()
97
98#endif // _WX_STOPWATCH_H_
99