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/timer.h"
  26
  27 #ifndef WX_PRECOMP
  28 #endif
  29
  30 #include "wx/cocoa/autorelease.h"
  31
  32 #import <Foundation/NSTimer.h>
  33
  34 // ============================================================================
  35 // implementation
  36 // ============================================================================
  37
  38 IMPLEMENT_CLASS(wxTimer, wxTimerBase)
  39
  40 // ========================================================================
  41 // wxNSTimerData
  42 // ========================================================================
  43 @interface wxNSTimerData : NSObject
  44 {
  45     wxTimer* m_timer;
  46 }
  47
  48 - (id)init;
  49 - (id)initWithWxTimer:(wxTimer*)theTimer;
  50 - (wxTimer*)timer;
  51 - (void)onNotify:(NSTimer *)theTimer;
  52 @end // interface wxNSTimerData : NSObject
  53
  54 @implementation wxNSTimerData : NSObject
  55 - (id)init
  56 {
  57     if(!(self = [super init]))
  58         return nil;
  59     m_timer = NULL;
  60     return self;
  61 }
  62
  63 - (id)initWithWxTimer:(wxTimer*)theTimer;
  64 {
  65     if(!(self = [super init]))
  66         return nil;
  67     m_timer = theTimer;
  68     return self;
  69 }
  70
  71 - (wxTimer*)timer
  72 {
  73     return m_timer;
  74 }
  75
  76 - (void)onNotify:(NSTimer *)theTimer
  77 {
  78     m_timer->Notify(); //wxTimerBase method
  79 }
  80 @end
  81
  82 // ----------------------------------------------------------------------------
  83 // wxTimer
  84 // ----------------------------------------------------------------------------
  85
  86 wxTimer::~wxTimer()
  87 {
  88     Stop();
  89 }
  90
  91 void wxTimer::Init()
  92 {
  93     m_cocoaNSTimer = NULL;
  94 }
  95
  96 bool wxTimer::Start(int millisecs, bool oneShot)
  97 {
  98     Stop();
  99
 100     wxAutoNSAutoreleasePool thePool;
 101
 102     wxNSTimerData *timerData = [[wxNSTimerData alloc] initWithWxTimer:this];
 103     m_cocoaNSTimer =     [[NSTimer
 104             scheduledTimerWithTimeInterval: millisecs / 1000.0 //seconds
 105             target:     timerData
 106             selector:   @selector(onNotify:)
 107             userInfo:   nil
 108             repeats:    oneShot == false] retain];
 109     [timerData release];
 110
 111     return IsRunning();
 112 }
 113
 114 void wxTimer::Stop()
 115 {
 116     if (m_cocoaNSTimer)
 117     {
 118         // FIXME: Is this safe to do if !isValid ?
 119         [m_cocoaNSTimer invalidate];
 120         [m_cocoaNSTimer release];
 121         m_cocoaNSTimer = NULL;
 122     }
 123 }
 124
 125 bool wxTimer::IsRunning() const
 126 {
 127     return m_cocoaNSTimer != NULL && [m_cocoaNSTimer isValid];
 128 }
 129
 130 #endif // wxUSE_TIMER
 131