src/cocoa/timer.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/timer.mm
   3 // Purpose:     wxTimer for wxCocoa
   4 // Author:      Ryan Norton
   5 // Modified by: David Elliott
   6 // Created:     2005-02-04
   7 // Copyright:   (c) Ryan Norton
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #if wxUSE_TIMER
  23
  24 #include "wx/cocoa/private/timer.h"
  25 #include "wx/cocoa/autorelease.h"
  26
  27 #include "wx/cocoa/objc/objc_uniquifying.h"
  28
  29 #import <Foundation/NSTimer.h>
  30
  31 // ========================================================================
  32 // wxNSTimerData
  33 // ========================================================================
  34 @interface wxNSTimerData : NSObject
  35 {
  36     wxCocoaTimerImpl* m_timer;
  37 }
  38
  39 - (id)init;
  40 - (id)initWithWxTimer:(wxCocoaTimerImpl*)theTimer;
  41 - (wxCocoaTimerImpl*)timer;
  42 - (void)onNotify:(NSTimer *)theTimer;
  43 @end // interface wxNSTimerData : NSObject
  44 WX_DECLARE_GET_OBJC_CLASS(wxNSTimerData,NSObject)
  45
  46 @implementation wxNSTimerData : NSObject
  47 - (id)init
  48 {
  49     if(!(self = [super init]))
  50         return nil;
  51     m_timer = NULL;
  52     return self;
  53 }
  54
  55 - (id)initWithWxTimer:(wxCocoaTimerImpl*)theTimer;
  56 {
  57     if(!(self = [super init]))
  58         return nil;
  59     m_timer = theTimer;
  60     return self;
  61 }
  62
  63 - (wxCocoaTimerImpl*)timer
  64 {
  65     return m_timer;
  66 }
  67
  68 - (void)onNotify:(NSTimer *)theTimer
  69 {
  70     m_timer->Notify();
  71 }
  72 @end
  73 WX_IMPLEMENT_GET_OBJC_CLASS(wxNSTimerData,NSObject)
  74
  75 // ----------------------------------------------------------------------------
  76 // wxCocoaTimerImpl
  77 // ----------------------------------------------------------------------------
  78
  79 wxCocoaTimerImpl::~wxCocoaTimerImpl()
  80 {
  81     Stop();
  82 }
  83
  84 void wxCocoaTimerImpl::Init()
  85 {
  86     m_cocoaNSTimer = NULL;
  87 }
  88
  89 bool wxCocoaTimerImpl::Start(int millisecs, bool oneShot)
  90 {
  91     Stop();
  92
  93     wxAutoNSAutoreleasePool thePool;
  94
  95     wxNSTimerData *timerData = [[WX_GET_OBJC_CLASS(wxNSTimerData) alloc] initWithWxTimer:this];
  96     m_cocoaNSTimer =     [[NSTimer
  97             scheduledTimerWithTimeInterval: millisecs / 1000.0 //seconds
  98             target:     timerData
  99             selector:   @selector(onNotify:)
 100             userInfo:   nil
 101             repeats:    oneShot == false] retain];
 102     [timerData release];
 103
 104     return IsRunning();
 105 }
 106
 107 void wxCocoaTimerImpl::Stop()
 108 {
 109     if (m_cocoaNSTimer)
 110     {
 111         // FIXME: Is this safe to do if !isValid ?
 112         [m_cocoaNSTimer invalidate];
 113         [m_cocoaNSTimer release];
 114         m_cocoaNSTimer = NULL;
 115     }
 116 }
 117
 118 bool wxCocoaTimerImpl::IsRunning() const
 119 {
 120     return m_cocoaNSTimer != NULL && [m_cocoaNSTimer isValid];
 121 }
 122
 123 #endif // wxUSE_TIMER
 124