| 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 | extern "C" 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 | |