no real changes; just reformatting

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

diff --git a/src/gtk/timer.cpp b/src/gtk/timer.cpp
index cf9d2c64a3ac5a34010b879749ba99b6c284984c..f5330bc0123166c9d03163f7878c20a760991c87 100644 (file)
--- a/src/gtk/timer.cpp
+++ b/src/gtk/timer.cpp
@@ -1,11 +1,10 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        timer.cpp
-// Purpose:
+// Name:        gtk/timer.cpp
+// Purpose:     wxTimer implementation
 // Author:      Robert Roebling
-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 
@@ -13,59 +12,79 @@
 #pragma implementation "timer.h"
 #endif
 
+#include "wx/defs.h"
+
+#if wxUSE_TIMER
+
 #include "wx/timer.h"
 
-//-----------------------------------------------------------------------------
+#include "gtk/gtk.h"
+
+// ----------------------------------------------------------------------------
 // wxTimer
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_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()) timer->Stop();
-  return TRUE;
-}
+    wxTimer *timer = (wxTimer*)data;
 
-wxTimer::wxTimer(void)
-{
-  m_tag = -1;
-  m_time = 1000;
-  m_oneShot = FALSE;
-}
+    // 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();
 
-wxTimer::~wxTimer(void)
-{
-  Stop();
-}
+    timer->Notify();
 
-int wxTimer::Interval(void)
-{
-  return m_time;
+    // Release lock again.
+    gdk_threads_leave();
+
+    if (timer->IsOneShot())
+        return FALSE;
+
+    return TRUE;
 }
 
-bool wxTimer::OneShot(void)
+void wxTimer::Init()
 {
-  return m_oneShot;
+    m_tag = -1;
+    m_milli = 1000;
 }
 
-void wxTimer::Notify(void)
+wxTimer::~wxTimer()
 {
+    wxTimer::Stop();
 }
 
-void wxTimer::Start( int millisecs, bool oneShot )
+bool wxTimer::Start( int millisecs, bool oneShot )
 {
-  if (millisecs != -1) m_time = millisecs;
-  m_oneShot = oneShot;
-  m_tag = gtk_timeout_add( millisecs, timeout_callback, this );
+    (void)wxTimerBase::Start(millisecs, oneShot);
+
+    if (m_tag != -1)
+        gtk_timeout_remove( m_tag );
+
+    m_tag = gtk_timeout_add( m_milli, timeout_callback, this );
+
+    return TRUE;
 }
 
-void wxTimer::Stop(void)
+void wxTimer::Stop()
 {
-  if (m_tag != -1)
-    gtk_timeout_remove( m_tag );
-  m_tag = -1;
+    if (m_tag != -1)
+    {
+        gtk_timeout_remove( m_tag );
+        m_tag = -1;
+    }
 }
 
+#endif // wxUSE_TIMER
+