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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 | |
9 | // Licence: wxWindows license | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "timer.h" | |
14 | #endif | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
20 | #pragma hdrstop | |
21 | #endif | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #include "wx/setup.h" | |
25 | #include "wx/list.h" | |
26 | #include "wx/event.h" | |
27 | #include "wx/app.h" | |
28 | #endif | |
29 | ||
30 | #include "wx/intl.h" | |
31 | #include "wx/log.h" | |
32 | ||
33 | #include "wx/timer.h" | |
34 | #include "wx/msw/private.h" | |
35 | ||
36 | #include <time.h> | |
37 | #include <sys/types.h> | |
38 | ||
39 | #if !defined(__SC__) && !defined(__GNUWIN32__) && !defined(__MWERKS__) | |
40 | #include <sys/timeb.h> | |
41 | #endif | |
42 | ||
43 | // ---------------------------------------------------------------------------- | |
44 | // private functions | |
45 | // ---------------------------------------------------------------------------- | |
46 | ||
47 | wxList wxTimerList(wxKEY_INTEGER); | |
48 | UINT WINAPI _EXPORT wxTimerProc(HWND hwnd, WORD, int idTimer, DWORD); | |
49 | ||
50 | // ---------------------------------------------------------------------------- | |
51 | // macros | |
52 | // ---------------------------------------------------------------------------- | |
53 | ||
54 | #ifdef __WIN32__ | |
55 | #define _EXPORT /**/ | |
56 | #else | |
57 | #define _EXPORT _export | |
58 | #endif | |
59 | ||
60 | #if !USE_SHARED_LIBRARY | |
61 | IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject) | |
62 | #endif | |
63 | ||
64 | // ============================================================================ | |
65 | // implementation | |
66 | // ============================================================================ | |
67 | ||
68 | // ---------------------------------------------------------------------------- | |
69 | // wxTimer class | |
70 | // ---------------------------------------------------------------------------- | |
71 | wxTimer::wxTimer(void) | |
72 | { | |
73 | milli = 0 ; | |
74 | lastMilli = -1 ; | |
75 | id = 0; | |
76 | } | |
77 | ||
78 | wxTimer::~wxTimer(void) | |
79 | { | |
80 | Stop(); | |
81 | ||
82 | wxTimerList.DeleteObject(this); | |
83 | } | |
84 | ||
85 | bool wxTimer::Start(int milliseconds, bool mode) | |
86 | { | |
87 | oneShot = mode ; | |
88 | if (milliseconds < 0) | |
89 | milliseconds = lastMilli; | |
90 | ||
91 | wxCHECK_MSG( milliseconds > 0, FALSE, "invalid value for timer timeour" ); | |
92 | ||
93 | lastMilli = milli = milliseconds; | |
94 | ||
95 | wxTimerList.DeleteObject(this); | |
96 | TIMERPROC wxTimerProcInst = (TIMERPROC) | |
97 | MakeProcInstance((FARPROC)wxTimerProc, wxGetInstance()); | |
98 | ||
99 | id = SetTimer(NULL, (UINT)(id ? id : 1), | |
100 | (UINT)milliseconds, wxTimerProcInst); | |
101 | if (id > 0) | |
102 | { | |
103 | wxTimerList.Append(id, this); | |
104 | ||
105 | return TRUE; | |
106 | } | |
107 | else | |
108 | { | |
109 | wxLogSysError(_("Couldn't create a timer")); | |
110 | ||
111 | return FALSE; | |
112 | } | |
113 | } | |
114 | ||
115 | void wxTimer::Stop(void) | |
116 | { | |
117 | if (id) { | |
118 | KillTimer(NULL, (UINT)id); | |
119 | wxTimerList.DeleteObject(this); /* @@@@ */ | |
120 | } | |
121 | id = 0 ; | |
122 | milli = 0 ; | |
123 | } | |
124 | ||
125 | // ---------------------------------------------------------------------------- | |
126 | // private functions | |
127 | // ---------------------------------------------------------------------------- | |
128 | void wxProcessTimer(wxTimer& timer) | |
129 | { | |
130 | // Avoid to process spurious timer events | |
131 | if ( timer.id == 0) | |
132 | return; | |
133 | ||
134 | if ( timer.oneShot ) | |
135 | timer.Stop(); | |
136 | ||
137 | timer.Notify(); | |
138 | } | |
139 | ||
140 | UINT WINAPI _EXPORT wxTimerProc(HWND WXUNUSED(hwnd), WORD, int idTimer, DWORD) | |
141 | { | |
142 | wxNode *node = wxTimerList.Find((long)idTimer); | |
143 | ||
144 | wxCHECK_MSG( node, 0, "bogus timer id in wxTimerProc" ); | |
145 | ||
146 | wxProcessTimer(*(wxTimer *)node->Data()); | |
147 | ||
148 | return 0; | |
149 | } |