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