Return NULL from wxWindow::GetCapture() when the capture is being lost.

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

diff --git a/src/gtk/timer.cpp b/src/gtk/timer.cpp
index 61de7eeb1116a45720ee69eb3f1d52792a40683d..5e819097eb19c30063836868dbc81356ba168a3b 100644 (file)
--- a/src/gtk/timer.cpp
+++ b/src/gtk/timer.cpp
@@ -1,67 +1,73 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        timer.cpp
-// Purpose:
+// Name:        src/gtk/timer.cpp
+// Purpose:     wxTimer implementation
 // Author:      Robert Roebling
-// Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
-// Licence:    wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
 
-#ifdef __GNUG__
-#pragma implementation "timer.h"
-#endif
+#if wxUSE_TIMER
 
-#include "wx/timer.h"
+#include "wx/gtk/private/timer.h"
+#include "wx/app.h"
 
-//-----------------------------------------------------------------------------
-// wxTimer
-//-----------------------------------------------------------------------------
+#include <gtk/gtk.h>
 
-IMPLEMENT_ABSTRACT_CLASS(wxTimer,wxObject)
+// ----------------------------------------------------------------------------
+// wxTimerImpl
+// ----------------------------------------------------------------------------
 
-gint timeout_callback( gpointer data )
+extern "C" {
+
+static gboolean timeout_callback(gpointer data)
 {
-  wxTimer *timer = (wxTimer*)data;
-  timer->Notify();
+    wxGTKTimerImpl *timer = (wxGTKTimerImpl*)data;
 
-  if ( timer->OneShot() )
-    timer->Stop();
+    const bool keepGoing = !timer->IsOneShot();
+    if ( !keepGoing )
+        timer->Stop();
 
-  return TRUE;
-}
+    // 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()
-{
-  m_tag = -1;
-  m_time = 1000;
-  m_oneShot = FALSE;
-}
+    timer->Notify();
 
-wxTimer::~wxTimer()
-{
-  Stop();
+    // Release lock again.
+    gdk_threads_leave();
+
+    wxApp* app = wxTheApp;
+    if (app)
+        app->WakeUpIdle();
+
+    return keepGoing;
 }
 
-bool wxTimer::Start( int millisecs, bool oneShot )
+} // extern "C"
+
+bool wxGTKTimerImpl::Start(int millisecs, bool oneShot)
 {
-  if ( millisecs != -1 )
-    m_time = millisecs;
+    if ( !wxTimerImpl::Start(millisecs, oneShot) )
+        return false;
 
-  m_oneShot = oneShot;
+    wxASSERT_MSG( !m_sourceId, wxT("shouldn't be still running") );
 
-  m_tag = gtk_timeout_add( millisecs, timeout_callback, this );
+    m_sourceId = g_timeout_add(m_milli, timeout_callback, this);
 
-  return TRUE;
+    return true;
 }
 
-void wxTimer::Stop()
+void wxGTKTimerImpl::Stop()
 {
-  if ( m_tag != -1 )
-  {
-    gtk_timeout_remove( m_tag );
+    wxASSERT_MSG( m_sourceId, wxT("should be running") );
 
-    m_tag = -1;
-  }
+    g_source_remove(m_sourceId);
+    m_sourceId = 0;
 }
 
+#endif // wxUSE_TIMER
+