1 files changed, 136 insertions, 0 deletions
diff --git a/sc/inc/refreshtimer.hxx b/sc/inc/refreshtimer.hxx
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+++ b/sc/inc/refreshtimer.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef SC_REFRESHTIMER_HXX
+#define SC_REFRESHTIMER_HXX
+
+#include <vcl/timer.hxx>
+#include <osl/mutex.hxx>
+#include <scdllapi.h>
+
+class ScRefreshTimerControl
+{
+private:
+    ::osl::Mutex   aMutex;
+    sal_uInt16         nBlockRefresh;
+
+public:
+    ScRefreshTimerControl() : nBlockRefresh(0) {}
+
+    void SetAllowRefresh( sal_Bool b )
+    {
+        if ( b && nBlockRefresh )
+            --nBlockRefresh;
+        else if ( !b && nBlockRefresh < (sal_uInt16)(~0) )
+            ++nBlockRefresh;
+    }
+
+    sal_Bool IsRefreshAllowed() const { return !nBlockRefresh; }
+
+    ::osl::Mutex& GetMutex() { return aMutex; }
+};
+
+class ScRefreshTimerProtector
+{
+private:
+    ScRefreshTimerControl * const * ppControl;
+
+public:
+    ScRefreshTimerProtector( ScRefreshTimerControl * const * pp );
+
+    ~ScRefreshTimerProtector()
+    {
+        if ( ppControl && *ppControl )
+            (*ppControl)->SetAllowRefresh( true );
+    }
+};
+
+class ScRefreshTimer : public AutoTimer
+{
+private:
+    ScRefreshTimerControl * const * ppControl;
+
+    void AppendToControl() {}
+
+    void RemoveFromControl() {}
+
+    void Start()
+    {
+        if ( GetTimeout() )
+            AutoTimer::Start();
+    }
+
+public:
+    ScRefreshTimer() : ppControl(0) { SetTimeout( 0 ); }
+
+    ScRefreshTimer( sal_uLong nSeconds ) : ppControl(0)
+    {
+        SetTimeout( nSeconds * 1000 );
+        Start();
+    }
+
+    ScRefreshTimer( const ScRefreshTimer& r ) : AutoTimer( r ), ppControl(0) {}
+
+    virtual ~ScRefreshTimer();
+
+    ScRefreshTimer& operator=( const ScRefreshTimer& r )
+    {
+        SetRefreshControl(0);
+        AutoTimer::operator=( r );
+        return *this;
+    }
+
+    sal_Bool operator==( const ScRefreshTimer& r ) const
+        { return GetTimeout() == r.GetTimeout(); }
+
+    sal_Bool operator!=( const ScRefreshTimer& r ) const
+        { return !ScRefreshTimer::operator==( r ); }
+
+    void StartRefreshTimer() { Start(); }
+
+    void SetRefreshControl( ScRefreshTimerControl * const * pp )
+    {
+        RemoveFromControl();
+        ppControl = pp;
+        AppendToControl();
+    }
+
+    void SetRefreshHandler( const Link& rLink ) { SetTimeoutHdl( rLink ); }
+
+    sal_uLong GetRefreshDelay() const { return GetTimeout() / 1000; }
+
+    void StopRefreshTimer() { Stop(); }
+
+    SC_DLLPUBLIC virtual void SetRefreshDelay( sal_uLong nSeconds );
+
+    SC_DLLPUBLIC virtual void Timeout();
+};
+
+#endif // SC_REFRESHTIMER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */