no real changes; just reformatting

[wxWidgets.git] / src / gtk / timer.cpp

diff --git a/src/gtk/timer.cpp b/src/gtk/timer.cpp
index 36aada6e6fc9c92920245527a2b1ca33c5c45163..f5330bc0123166c9d03163f7878c20a760991c87 100644 (file)
--- a/src/gtk/timer.cpp
+++ b/src/gtk/timer.cpp
@@ -1,10 +1,10 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        timer.cpp
-// Purpose:
+// Name:        gtk/timer.cpp
+// Purpose:     wxTimer implementation
 // Author:      Robert Roebling
 // Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
-// Licence:    wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 
@@ -12,51 +12,67 @@
 #pragma implementation "timer.h"
 #endif
 
+#include "wx/defs.h"
+
+#if wxUSE_TIMER
+
 #include "wx/timer.h"
 
 #include "gtk/gtk.h"
 
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 // wxTimer
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 
-IMPLEMENT_ABSTRACT_CLASS(wxTimer,wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject)
 
-gint timeout_callback( gpointer data )
+extern "C" gint timeout_callback( gpointer data )
 {
     wxTimer *timer = (wxTimer*)data;
-    timer->Notify();
 
-    if (timer->OneShot())
+    // Don't change the order of anything in this callback!
+    
+    if (timer->IsOneShot())
     {
+        // This sets m_tag to -1
         timer->Stop();
     }
+    
+    // When getting called from GDK's timer handler we
+    // are no longer within GDK's grab on the GUI
+    // thread so we must lock it here ourselves.
+    gdk_threads_enter();
+
+    timer->Notify();
+
+    // Release lock again.
+    gdk_threads_leave();
+
+    if (timer->IsOneShot())
+        return FALSE;
 
     return TRUE;
 }
 
-wxTimer::wxTimer()
+void wxTimer::Init()
 {
     m_tag = -1;
-    m_time = 1000;
-    m_oneShot = FALSE;
+    m_milli = 1000;
 }
 
 wxTimer::~wxTimer()
 {
-    Stop();
+    wxTimer::Stop();
 }
 
 bool wxTimer::Start( int millisecs, bool oneShot )
 {
-    if (millisecs != -1)
-    {
-        m_time = millisecs;
-    }
+    (void)wxTimerBase::Start(millisecs, oneShot);
 
-    m_oneShot = oneShot;
+    if (m_tag != -1)
+        gtk_timeout_remove( m_tag );
 
-    m_tag = gtk_timeout_add( millisecs, timeout_callback, this );
+    m_tag = gtk_timeout_add( m_milli, timeout_callback, this );
 
     return TRUE;
 }
@@ -70,3 +86,5 @@ void wxTimer::Stop()
     }
 }
 
+#endif // wxUSE_TIMER
+