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