src/cocoa/timer.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/timer.mm
   3 // Purpose:     wxTimer for wxCocoa
   4 // Author:      Ryan Norton
   5 // Modified by:
   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 #ifndef WX_PRECOMP
  26     #include "wx/timer.h"
  27 #endif
  28
  29 #include "wx/cocoa/autorelease.h"
  30
  31 #import <Foundation/NSTimer.h>
  32
  33 // ============================================================================
  34 // implementation
  35 // ============================================================================
  36
  37 IMPLEMENT_CLASS(wxTimer, wxTimerBase)
  38
  39 // ========================================================================
  40 // wxNSTimerDelegate
  41 // ========================================================================
  42 @interface wxNSTimerDelegate : NSObject
  43 {
  44 }
  45
  46 - (void)onNotify:(NSTimer *)theTimer;
  47 @end // interface wxNSTimerDelegate : NSObject
  48
  49 // ========================================================================
  50 // wxNSTimerData
  51 // ========================================================================
  52 @interface wxNSTimerData : NSObject
  53 {
  54     wxTimer* m_timer;
  55 }
  56
  57 - (id)setTimer:(wxTimer*)theTimer;
  58 - (wxTimer*)timer;
  59 @end // interface wxNSTimerData : NSObject
  60
  61 @implementation wxNSTimerData : NSObject
  62 - (id)setTimer:(wxTimer*)theTimer;
  63 {
  64     m_timer = theTimer;
  65     return self;
  66 }
  67 - (wxTimer*)timer
  68 {
  69     return m_timer;
  70 }
  71 @end
  72
  73 @implementation wxNSTimerDelegate : NSObject
  74 - (void)onNotify:(NSTimer *)theTimer
  75 {
  76     wxNSTimerData* theData = [theTimer userInfo];
  77     [theData timer]->Notify(); //wxTimerBase method
  78 }
  79 @end
  80
  81 // ----------------------------------------------------------------------------
  82 // wxTimer
  83 // ----------------------------------------------------------------------------
  84
  85 const wxObjcAutoRefFromAlloc<struct objc_object*> wxTimer::sm_cocoaDelegate = [[wxNSTimerDelegate alloc] init];
  86
  87 wxTimer::~wxTimer()
  88 {
  89     Stop();
  90 }
  91
  92 void wxTimer::Init()
  93 {
  94     m_cocoaNSTimer = NULL;
  95 }
  96
  97 bool wxTimer::Start(int millisecs, bool oneShot)
  98 {
  99     Stop();
 100
 101     wxAutoNSAutoreleasePool thePool;
 102
 103     m_cocoaNSTimer =     [[NSTimer
 104             scheduledTimerWithTimeInterval: millisecs / 1000.0 //seconds
 105             target:             wxTimer::sm_cocoaDelegate
 106             selector:   @selector(onNotify:)
 107             userInfo:   [[wxNSTimerData alloc] setTimer:this]
 108             repeats:    oneShot == false] retain];
 109
 110     return IsRunning();
 111 }
 112
 113 void wxTimer::Stop()
 114 {
 115     if (m_cocoaNSTimer)
 116     {
 117         NSObject* theUserInfo = [m_cocoaNSTimer userInfo];
 118         [m_cocoaNSTimer invalidate];
 119         [theUserInfo release];
 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