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diff --git a/toolkit/source/layout/core/flow.hxx b/toolkit/source/layout/core/flow.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 LAYOUT_CORE_FLOW_HXX
+#define LAYOUT_CORE_FLOW_HXX
+
+#include <layout/core/container.hxx>
+
+#include <list>
+
+namespace layoutimpl
+{
+
+class Flow : public Container
+{
+protected:
+    // Box properties (i.e. affect all children)
+    sal_Int32 mnSpacing;
+    sal_Bool mbHomogeneous;
+
+public:
+    // Children properties
+    struct ChildData
+    {
+        css::awt::Size aRequisition;
+        css::uno::Reference< css::awt::XLayoutConstrains > xChild;
+        css::uno::Reference< css::beans::XPropertySet >    xProps;
+        bool isVisible();
+    };
+
+protected:
+    std::list< ChildData * > maChildren;
+    long mnEachWidth;  // on homogeneous, the width of every child
+
+public:
+    Flow();
+
+    bool emptyVisible ();
+
+    // css::awt::XLayoutContainer
+    virtual void SAL_CALL addChild( const css::uno::Reference< css::awt::XLayoutConstrains >& Child )
+        throw (css::uno::RuntimeException, css::awt::MaxChildrenException);
+    virtual void SAL_CALL removeChild( const css::uno::Reference< css::awt::XLayoutConstrains >& Child )
+        throw (css::uno::RuntimeException);
+
+    virtual css::uno::Sequence< css::uno::Reference
+                                < css::awt::XLayoutConstrains > > SAL_CALL getChildren()
+        throw (css::uno::RuntimeException);
+
+    virtual css::uno::Reference< css::beans::XPropertySet > SAL_CALL getChildProperties(
+        const css::uno::Reference< css::awt::XLayoutConstrains >& Child )
+        throw (css::uno::RuntimeException);
+
+    virtual void SAL_CALL allocateArea( const css::awt::Rectangle &rArea )
+        throw (css::uno::RuntimeException);
+
+    virtual css::awt::Size SAL_CALL getMinimumSize()
+        throw(css::uno::RuntimeException);
+    virtual sal_Bool SAL_CALL hasHeightForWidth()
+        throw(css::uno::RuntimeException);
+    virtual sal_Int32 SAL_CALL getHeightForWidth( sal_Int32 nWidth )
+        throw(css::uno::RuntimeException);
+
+private:
+    // shared between getMinimumSize() and getHeightForWidth()
+    css::awt::Size calculateSize( long nMaxWidth );
+};
+
+} //  namespace layoutimpl
+
+#endif /* LAYOUT_FLOW_CORE_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */