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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_SC_INC_CHARTLOCK_HXX
+#define INCLUDED_SC_INC_CHARTLOCK_HXX
+
+#include <vcl/timer.hxx>
+
+#include <cppuhelper/weakref.hxx>
+
+#include <memory>
+#include <vector>
+
+namespace com::sun::star::frame { class XModel; }
+
+class ScDocument;
+
+/** All current charts in the calc will be locked in constructor and unlocked in destructor.
+*/
+class ScChartLockGuard final
+{
+public:
+ ScChartLockGuard( ScDocument* pDoc );
+ ~ScChartLockGuard();
+
+ void AlsoLockThisChart( const css::uno::Reference< css::frame::XModel >& xModel );
+
+private:
+ std::vector< css::uno::WeakReference< css::frame::XModel > > maChartModels;
+
+ ScChartLockGuard( const ScChartLockGuard& ) = delete;
+};
+
+/** Use this to lock all charts in the calc for a little time.
+ They will unlock automatically unless you call StartOrContinueLocking() again.
+*/
+class ScTemporaryChartLock final
+{
+public:
+ ScTemporaryChartLock( ScDocument* pDoc );
+ ~ScTemporaryChartLock();
+
+ void StartOrContinueLocking();
+ void StopLocking();
+ void AlsoLockThisChart( const css::uno::Reference< css::frame::XModel >& xModel );
+
+private:
+ ScDocument* mpDoc;
+ Timer maTimer;
+ std::unique_ptr< ScChartLockGuard > mapScChartLockGuard;
+
+ DECL_LINK(TimeoutHdl, Timer *, void);
+
+ ScTemporaryChartLock( const ScTemporaryChartLock& ) = delete;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */