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uninitialized variable warning fixed (modified patch 1434065)
[wxWidgets.git] / src / mac / classic / timer.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: timer.cpp
3 // Purpose: wxTimer implementation
4 // Author: Stefan Csomor
5 // Modified by:
6 // Created: 1998-01-01
7 // RCS-ID: $Id$
8 // Copyright: (c) Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/timer.h"
13
14 IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxEvtHandler)
15
16 #ifdef __WXMAC__
17 #include "wx/mac/private.h"
18 #endif
19 #ifndef __DARWIN__
20 #include <Timer.h>
21 #endif
22
23 #include "wx/dynarray.h"
24
25 typedef struct MacTimerInfo
26 {
27 TMTask m_task;
28 wxMacNotifierTableRef m_table ;
29 wxTimer* m_timer ;
30 } ;
31
32 static void wxProcessTimer( unsigned long event , void *data ) ;
33
34 static pascal void MacTimerProc( TMTask * t )
35 {
36 MacTimerInfo * tm = (MacTimerInfo*) t ;
37 wxMacAddEvent( tm->m_table , wxProcessTimer, 0 , (void*) tm->m_timer , TRUE ) ;
38 }
39
40 // we need this array to track timers that are being deleted within the Notify procedure
41 // adding the timer before the Notify call and checking after whether it still is in there
42 // as the destructor would have removed it from the array
43
44 wxArrayPtrVoid gTimersInProcess ;
45
46 static void wxProcessTimer( unsigned long event , void *data )
47 {
48 if ( !data )
49 return ;
50
51 wxTimer* timer = (wxTimer*) data ;
52
53 if ( timer->IsOneShot() )
54 timer->Stop() ;
55
56 gTimersInProcess.Add( timer ) ;
57
58 timer->Notify();
59
60 int index = gTimersInProcess.Index( timer ) ;
61
62 if ( index != wxNOT_FOUND )
63 {
64 gTimersInProcess.RemoveAt( index ) ;
65
66 if ( !timer->IsOneShot() && timer->m_info->m_task.tmAddr )
67 {
68 PrimeTime( (QElemPtr) &timer->m_info->m_task , timer->GetInterval() ) ;
69 }
70
71 }
72 }
73
74 void wxTimer::Init()
75 {
76 m_info = new MacTimerInfo() ;
77 m_info->m_task.tmAddr = NULL ;
78 m_info->m_task.tmWakeUp = 0 ;
79 m_info->m_task.tmReserved = 0 ;
80 m_info->m_task.qType = 0 ;
81 m_info->m_table = wxMacGetNotifierTable() ;
82 m_info->m_timer = this ;
83 }
84
85 bool wxTimer::IsRunning() const
86 {
87 // as the qType may already indicate it is elapsed, but it
88 // was not handled internally yet
89 return ( m_info->m_task.tmAddr != NULL ) ;
90 }
91
92 wxTimer::~wxTimer()
93 {
94 Stop();
95 if (m_info != NULL) {
96 delete m_info ;
97 m_info = NULL ;
98 }
99 int index = gTimersInProcess.Index( this ) ;
100 if ( index != wxNOT_FOUND )
101 gTimersInProcess.RemoveAt( index ) ;
102 }
103
104 bool wxTimer::Start(int milliseconds,bool mode)
105 {
106 (void)wxTimerBase::Start(milliseconds, mode);
107
108 wxCHECK_MSG( m_milli > 0, FALSE, wxT("invalid value for timer timeout") );
109 wxCHECK_MSG( m_info->m_task.tmAddr == NULL , FALSE, wxT("attempting to restart a timer") );
110
111 #if defined(UNIVERSAL_INTERFACES_VERSION) && (UNIVERSAL_INTERFACES_VERSION >= 0x0340)
112 m_info->m_task.tmAddr = NewTimerUPP( MacTimerProc ) ;
113 #else
114 m_info->m_task.tmAddr = NewTimerProc( MacTimerProc ) ;
115 #endif
116 m_info->m_task.tmWakeUp = 0 ;
117 m_info->m_task.tmReserved = 0 ;
118 m_info->m_task.qType = 0 ;
119 m_info->m_timer = this ;
120 InsXTime((QElemPtr) &m_info->m_task ) ;
121 PrimeTime( (QElemPtr) &m_info->m_task , m_milli ) ;
122 return TRUE;
123 }
124
125 void wxTimer::Stop()
126 {
127 if ( m_info->m_task.tmAddr )
128 {
129 RmvTime( (QElemPtr) &m_info->m_task ) ;
130 DisposeTimerUPP(m_info->m_task.tmAddr) ;
131 m_info->m_task.tmAddr = NULL ;
132 }
133 wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , this ) ;
134 }
135
136
137