preparation for allowing to use wxTimer in wxBase (heavily modified patch 1113088):

1. Changed wxTimer to use wxTimerImpl
2. Added Unix-specific generic timer implementation
3. Added wxAppTraits::CreateTimerImpl()


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45544 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk1/private/timer.h

@@ -0,0 +1,34 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/gtk1/private/timer.h
+// Purpose:     wxTimerImpl for wxGTK
+// Author:      Robert Roebling
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GTK1_PRIVATE_TIMER_H_
+#define _WX_GTK1_PRIVATE_TIMER_H_
+
+#include "wx/private/timer.h"
+
+//-----------------------------------------------------------------------------
+// wxTimer
+//-----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxGTKTimerImpl : public wxTimerImpl
+{
+public:
+    wxGTKTimerImpl(wxTimer *timer) : wxTimerImpl(timer) { m_tag = -1; }
+
+    virtual bool Start(int millisecs = -1, bool oneShot = FALSE);
+    virtual void Stop();
+
+    virtual bool IsRunning() const { return m_tag != -1; }
+
+private:
+    // registered timeout id, -1 if the timer isn't running
+    int m_tag;
+};
+
+#endif // _WX_GTK1_PRIVATE_TIMER_H_