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Added a constructor that allows creation of independent wxControl
[wxWidgets.git] / src / msw / timer.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: timer.cpp
3// Purpose: wxTimer implementation
4// Author: Julian Smart
5// Modified by:
6// Created: 04/01/98
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart and Markus Holzem
73974df1 9// Licence: wxWindows license
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10/////////////////////////////////////////////////////////////////////////////
11
12#ifdef __GNUG__
c085e333 13 #pragma implementation "timer.h"
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14#endif
15
16// For compilers that support precompilation, includes "wx.h".
17#include "wx/wxprec.h"
18
19#ifdef __BORLANDC__
c085e333 20 #pragma hdrstop
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21#endif
22
23#ifndef WX_PRECOMP
c085e333 24 #include "wx/setup.h"
0470b1e6 25 #include "wx/window.h"
c085e333 26 #include "wx/list.h"
2432b92d 27 #include "wx/event.h"
c085e333 28 #include "wx/app.h"
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29 #include "wx/intl.h"
30 #include "wx/log.h"
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31#endif
32
33#include "wx/timer.h"
2bda0e17 34
0470b1e6 35#include "wx/msw/private.h"
2bda0e17 36
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37// ----------------------------------------------------------------------------
38// private functions
39// ----------------------------------------------------------------------------
40
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41wxList wxTimerList(wxKEY_INTEGER);
42UINT WINAPI _EXPORT wxTimerProc(HWND hwnd, WORD, int idTimer, DWORD);
43
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44// ----------------------------------------------------------------------------
45// macros
46// ----------------------------------------------------------------------------
47
48#ifdef __WIN32__
73974df1 49 #define _EXPORT
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50#else
51 #define _EXPORT _export
52#endif
53
c085e333 54 IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject)
2bda0e17 55
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56// ============================================================================
57// implementation
58// ============================================================================
59
60// ----------------------------------------------------------------------------
61// wxTimer class
62// ----------------------------------------------------------------------------
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63
64wxTimer::wxTimer()
2bda0e17 65{
0470b1e6 66 m_id = 0;
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67}
68
73974df1 69wxTimer::~wxTimer()
2bda0e17 70{
0470b1e6 71 wxTimer::Stop();
2bda0e17 72
c085e333 73 wxTimerList.DeleteObject(this);
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74}
75
0470b1e6 76bool wxTimer::Start(int milliseconds, bool oneShot)
2bda0e17 77{
0470b1e6 78 (void)wxTimerBase::Start(milliseconds, oneShot);
c085e333 79
0470b1e6 80 wxCHECK_MSG( m_milli > 0, FALSE, wxT("invalid value for timer timeour") );
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81
82 wxTimerList.DeleteObject(this);
83 TIMERPROC wxTimerProcInst = (TIMERPROC)
84 MakeProcInstance((FARPROC)wxTimerProc, wxGetInstance());
85
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86 m_id = SetTimer(NULL, (UINT)(m_id ? m_id : 1),
87 (UINT)milliseconds, wxTimerProcInst);
88 if ( m_id > 0 )
c085e333 89 {
0470b1e6 90 wxTimerList.Append(m_id, this);
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91
92 return TRUE;
93 }
94 else
95 {
96 wxLogSysError(_("Couldn't create a timer"));
97
98 return FALSE;
99 }
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100}
101
73974df1 102void wxTimer::Stop()
2bda0e17 103{
0470b1e6 104 if ( m_id )
73974df1 105 {
0470b1e6 106 KillTimer(NULL, (UINT)m_id);
73974df1 107 wxTimerList.DeleteObject(this);
c085e333 108 }
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109
110 m_id = 0;
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111}
112
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113// ----------------------------------------------------------------------------
114// private functions
115// ----------------------------------------------------------------------------
73974df1 116
06e38c8e 117void wxProcessTimer(wxTimer& timer)
2bda0e17 118{
c085e333 119 // Avoid to process spurious timer events
0470b1e6 120 if ( timer.m_id == 0)
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121 return;
122
0470b1e6 123 if ( timer.IsOneShot() )
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124 timer.Stop();
125
126 timer.Notify();
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127}
128
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129UINT WINAPI _EXPORT wxTimerProc(HWND WXUNUSED(hwnd), WORD, int idTimer, DWORD)
130{
131 wxNode *node = wxTimerList.Find((long)idTimer);
132
223d09f6 133 wxCHECK_MSG( node, 0, wxT("bogus timer id in wxTimerProc") );
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134
135 wxProcessTimer(*(wxTimer *)node->Data());
136
137 return 0;
138}