1 files changed, 94 insertions, 0 deletions
diff --git a/include/svx/svdsob.hxx b/include/svx/svdsob.hxx
new file mode 100644
index 000000000..7e2b8578e
--- /dev/null
+++ b/include/svx/svdsob.hxx
@@ -0,0 +1,94 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <com/sun/star/uno/Any.hxx>
+
+#include <svx/svxdllapi.h>
+#include <svx/svdtypes.hxx>
+
+/*
+ Stores a bitfield of the layer values that have been set.
+*/
+
+class SVXCORE_DLLPUBLIC SdrLayerIDSet final
+{
+    // For now, have up to 256 layers
+    sal_uInt8 aData[32];
+
+public:
+    explicit SdrLayerIDSet(bool bInitVal = false)
+    {
+        memset(aData, bInitVal ? 0xFF : 0x00, sizeof(aData));
+    }
+
+    bool operator!=(const SdrLayerIDSet& rCmpSet) const
+    {
+        return (memcmp(aData, rCmpSet.aData, sizeof(aData))!=0);
+    }
+
+    void Set(SdrLayerID a)
+    {
+        const sal_Int16 nId = a.get();
+        if (nId >= 0 && nId < 256)
+            aData[nId / 8] |= 1 << (nId % 8);
+    }
+
+    void Clear(SdrLayerID a)
+    {
+        const sal_Int16 nId = a.get();
+        if (nId >= 0 && nId < 256)
+            aData[nId / 8] &= ~(1 << (nId % 8));
+    }
+
+    void Set(SdrLayerID a, bool b)
+    {
+        if(b)
+            Set(a);
+        else
+            Clear(a);
+    }
+
+    bool IsSet(SdrLayerID a) const
+    {
+        const sal_Int16 nId = a.get();
+        return nId >= 0 && nId < 256 && (aData[nId / 8] & 1 << nId % 8) != 0;
+    }
+
+    void SetAll()
+    {
+        memset(aData, 0xFF, sizeof(aData));
+    }
+
+    void ClearAll()
+    {
+        memset(aData, 0x00, sizeof(aData));
+    }
+
+    bool IsEmpty() const;
+
+    void operator&=(const SdrLayerIDSet& r2ndSet);
+
+    // initialize this set with a UNO sequence of sal_Int8 (e.g. as stored in settings.xml)
+    void PutValue(const css::uno::Any & rAny);
+
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */