1 files changed, 93 insertions, 0 deletions
diff --git a/chart2/source/inc/ControllerLockGuard.hxx b/chart2/source/inc/ControllerLockGuard.hxx
new file mode 100644
index 000000000000..69044d4a2b3f
--- /dev/null
+++ b/chart2/source/inc/ControllerLockGuard.hxx
@@ -0,0 +1,93 @@
+/*************************************************************************
+ *
+ * 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 CHART2_CONTROLLERLOCKGUARD_HXX
+#define CHART2_CONTROLLERLOCKGUARD_HXX
+
+#include <com/sun/star/frame/XModel.hpp>
+#include "charttoolsdllapi.hxx"
+
+namespace chart
+{
+
+/** This guard calls lockControllers at the given Model in the CTOR and
+    unlockControllers in the DTOR.  Using this ensures that controllers do not
+    remain locked when leaving a function even in case an exception is thrown.
+ */
+class OOO_DLLPUBLIC_CHARTTOOLS ControllerLockGuard
+{
+public:
+    explicit ControllerLockGuard(
+        const ::com::sun::star::uno::Reference<
+            ::com::sun::star::frame::XModel > & xModel );
+    ~ControllerLockGuard();
+
+private:
+    ::com::sun::star::uno::Reference<
+            ::com::sun::star::frame::XModel > m_xModel;
+};
+
+/** This helper class can be used to pass a locking mechanism to other objects
+    without exposing the full XModel to it.
+
+    Use the ControllerLockHelperGuard to lock/unlock the model during a block of
+    instructions.
+ */
+class OOO_DLLPUBLIC_CHARTTOOLS ControllerLockHelper
+{
+public:
+    explicit ControllerLockHelper(
+        const ::com::sun::star::uno::Reference<
+            ::com::sun::star::frame::XModel > & xModel );
+    ~ControllerLockHelper();
+
+    SAL_DLLPRIVATE void lockControllers();
+    SAL_DLLPRIVATE void unlockControllers();
+
+private:
+    ::com::sun::star::uno::Reference<
+            ::com::sun::star::frame::XModel > m_xModel;
+};
+
+/** This guard calls lockControllers at the given ControllerLockHelper in the
+    CTOR and unlockControllers in the DTOR.  Using this ensures that controllers
+    do not remain locked when leaving a function even in case an exception is
+    thrown.
+ */
+class OOO_DLLPUBLIC_CHARTTOOLS ControllerLockHelperGuard
+{
+public:
+    explicit ControllerLockHelperGuard( ControllerLockHelper & rHelper );
+    ~ControllerLockHelperGuard();
+
+private:
+    ControllerLockHelper & m_rHelper;
+};
+
+} //  namespace chart
+
+// CHART2_CONTROLLERLOCKGUARD_HXX
+#endif