1 files changed, 113 insertions, 0 deletions
diff --git a/include/comphelper/extract.hxx b/include/comphelper/extract.hxx
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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_COMPHELPER_EXTRACT_HXX
+#define INCLUDED_COMPHELPER_EXTRACT_HXX
+
+#include <sal/config.h>
+
+#include <cassert>
+
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/uno/TypeClass.hpp>
+#include <com/sun/star/uno/Type.h>
+#include <com/sun/star/uno/Any.hxx>
+
+namespace cppu
+{
+/**
+ * Sets enum from int32 value.  This function does NOT check for valid enum values!
+ *
+ * @param nEnum         int32 enum value
+ * @param rType         enum type
+ * @return enum or empty any.
+ */
+inline css::uno::Any int2enum(sal_Int32 nEnum, const css::uno::Type& rType)
+{
+    assert(rType.getTypeClass() == css::uno::TypeClass_ENUM);
+    return css::uno::Any(&nEnum, rType);
+}
+
+/**
+ * Sets int32 from enum or int in any.
+ *
+ * @param[out] rnEnum   int32 enum value
+ * @param rAny          enum or int
+ * @retval true if enum or int value was set
+ * @retval false otherwise
+ */
+inline bool enum2int(sal_Int32& rnEnum, const css::uno::Any& rAny)
+{
+    if (rAny.getValueTypeClass() == css::uno::TypeClass_ENUM)
+    {
+        rnEnum = *static_cast<const sal_Int32*>(rAny.getValue());
+        return true;
+    }
+
+    return rAny >>= rnEnum;
+}
+
+/**
+ * Sets int32 from enum or int in any with additional typecheck
+ *
+ * @param[out] eRet     the enum value as int. If there is no enum of the given type
+ *                      a css::lang::IllegalArgumentException is thrown
+ * @param rAny          enum or int
+ * @throws css::lang::IllegalArgumentException
+ */
+template <typename E> inline void any2enum(E& eRet, const css::uno::Any& rAny)
+{
+    // check for typesafe enum
+    if (!(rAny >>= eRet))
+    {
+        // if not enum, maybe integer?
+        sal_Int32 nValue = 0;
+        if (!(rAny >>= nValue))
+            throw css::lang::IllegalArgumentException();
+
+        eRet = static_cast<E>(nValue);
+    }
+}
+
+/**
+ * Extracts a boolean either as a bool or an integer from
+ * an any. If there is no bool or integer inside the any
+ * a css::lang::IllegalArgumentException is thrown
+ *
+ * @throws css::lang::IllegalArgumentException
+ */
+inline bool any2bool(const css::uno::Any& rAny)
+{
+    bool b;
+    if (rAny >>= b)
+    {
+        return b;
+    }
+    else
+    {
+        sal_Int32 nValue = 0;
+        if (!(rAny >>= nValue))
+            throw css::lang::IllegalArgumentException();
+        return nValue != 0;
+    }
+}
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */