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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/osx/core/timer.cpp
3 // Purpose: wxTimer implementation using CoreFoundation
4 // Author: Stefan Csomor
5 // Modified by:
6 // Created: 2008-07-01
7 // RCS-ID: $Id$
8 // Copyright: (c) Stefan Csomor
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #if wxUSE_TIMER
15
16 #ifndef WX_PRECOMP
17 #include "wx/dynarray.h"
18 #endif
19
20 #include "wx/osx/private.h"
21 #include "wx/osx/private/timer.h"
22
23 struct wxOSXTimerInfo
24 {
25 wxOSXTimerImpl* m_timer;
26 CFRunLoopTimerRef m_timerRef;
27 };
28
29 void wxProcessTimer(CFRunLoopTimerRef WXUNUSED(theTimer), void *data)
30 {
31 if ( data == NULL )
32 return;
33
34 wxOSXTimerImpl* timer = (wxOSXTimerImpl*)data;
35
36 if ( timer->IsOneShot() )
37 timer->Stop();
38
39 timer->Notify();
40 }
41
42 wxOSXTimerImpl::wxOSXTimerImpl(wxTimer *timer)
43 : wxTimerImpl(timer)
44 {
45 m_info = new wxOSXTimerInfo();
46 m_info->m_timer = this;
47 m_info->m_timerRef = kInvalidID;
48 }
49
50 bool wxOSXTimerImpl::IsRunning() const
51 {
52 return ( m_info->m_timerRef != kInvalidID && CFRunLoopTimerIsValid(m_info->m_timerRef));
53 }
54
55 wxOSXTimerImpl::~wxOSXTimerImpl()
56 {
57 if (m_info->m_timerRef)
58 {
59 if ( CFRunLoopTimerIsValid(m_info->m_timerRef) )
60 CFRunLoopTimerInvalidate( m_info->m_timerRef );
61 CFRelease( m_info->m_timerRef );
62 }
63 delete m_info;
64 }
65
66 bool wxOSXTimerImpl::Start( int milliseconds, bool mode )
67 {
68 (void)wxTimerImpl::Start(milliseconds, mode);
69
70 wxCHECK_MSG( m_milli > 0, false, wxT("invalid value for timer timeout") );
71 wxCHECK_MSG( m_info->m_timerRef == NULL, false, wxT("attempting to restart a timer") );
72
73 CFGregorianUnits gumilli ;
74 memset(&gumilli,0,sizeof(gumilli) );
75 gumilli.seconds = m_milli / 1000.0;
76
77 CFRunLoopTimerContext ctx ;
78 memset( &ctx, 0 , sizeof(ctx) );
79 ctx.version = 0;
80 ctx.info = this;
81
82 m_info->m_timer = this;
83 m_info->m_timerRef = CFRunLoopTimerCreate(
84 kCFAllocatorDefault,
85 CFAbsoluteTimeAddGregorianUnits( CFAbsoluteTimeGetCurrent() , NULL, gumilli ),
86 IsOneShot() ? 0 : CFTimeInterval( m_milli / 1000.0 ) ,
87 0, 0, wxProcessTimer, &ctx);
88
89 wxASSERT_MSG( m_info->m_timerRef != NULL, wxT("unable to create timer"));
90
91 CFRunLoopRef runLoop = 0;
92 #if wxOSX_USE_IPHONE
93 runLoop = CFRunLoopGetMain();
94 #else
95 runLoop = CFRunLoopGetCurrent();
96 #endif
97 CFRunLoopAddTimer( runLoop, m_info->m_timerRef, kCFRunLoopCommonModes) ;
98
99
100 return true;
101 }
102
103 void wxOSXTimerImpl::Stop()
104 {
105 if (m_info->m_timerRef)
106 {
107 CFRunLoopTimerInvalidate( m_info->m_timerRef );
108 CFRelease( m_info->m_timerRef );
109 }
110 m_info->m_timerRef = kInvalidID;
111 }
112
113 #endif // wxUSE_TIMER
114