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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: gtk/timer.cpp | |
3 | // Purpose: wxTimer implementation | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | ||
11 | #ifdef __GNUG__ | |
12 | #pragma implementation "timer.h" | |
13 | #endif | |
14 | ||
15 | #include "wx/defs.h" | |
16 | ||
17 | #if wxUSE_TIMER | |
18 | ||
19 | #include "wx/timer.h" | |
20 | ||
21 | #include "gtk/gtk.h" | |
22 | ||
23 | // ---------------------------------------------------------------------------- | |
24 | // wxTimer | |
25 | // ---------------------------------------------------------------------------- | |
26 | ||
27 | IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject) | |
28 | ||
29 | static gint timeout_callback( gpointer data ) | |
30 | { | |
31 | wxTimer *timer = (wxTimer*)data; | |
32 | ||
33 | /* when getting called from GDK's timer handler we | |
34 | are no longer within GDK's grab on the GUI | |
35 | thread so we must lock it here ourselves */ | |
36 | gdk_threads_enter(); | |
37 | ||
38 | timer->Notify(); | |
39 | ||
40 | /* release lock again */ | |
41 | gdk_threads_leave(); | |
42 | ||
43 | if ( timer->IsOneShot() ) | |
44 | return FALSE; | |
45 | ||
46 | return TRUE; | |
47 | } | |
48 | ||
49 | void wxTimer::Init() | |
50 | { | |
51 | m_tag = -1; | |
52 | m_milli = 1000; | |
53 | } | |
54 | ||
55 | wxTimer::~wxTimer() | |
56 | { | |
57 | wxTimer::Stop(); | |
58 | } | |
59 | ||
60 | bool wxTimer::Start( int millisecs, bool oneShot ) | |
61 | { | |
62 | (void)wxTimerBase::Start(millisecs, oneShot); | |
63 | ||
64 | if (m_tag != -1) | |
65 | gtk_timeout_remove( m_tag ); | |
66 | ||
67 | m_tag = gtk_timeout_add( m_milli, timeout_callback, this ); | |
68 | ||
69 | return TRUE; | |
70 | } | |
71 | ||
72 | void wxTimer::Stop() | |
73 | { | |
74 | if (m_tag != -1) | |
75 | { | |
76 | gtk_timeout_remove( m_tag ); | |
77 | m_tag = -1; | |
78 | } | |
79 | } | |
80 | ||
81 | #endif // wxUSE_TIMER | |
82 |