include/svx/svdsob.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <com/sun/star/uno/Any.hxx>
  23
  24 #include <svx/svxdllapi.h>
  25 #include <svx/svdtypes.hxx>
  26
  27 /*
  28  Stores a bitfield of the layer values that have been set.
  29 */
  30
  31 class SVXCORE_DLLPUBLIC SdrLayerIDSet final
  32 {
  33     // For now, have up to 256 layers
  34     sal_uInt8 aData[32];
  35
  36 public:
  37     explicit SdrLayerIDSet(bool bInitVal = false)
  38     {
  39         memset(aData, bInitVal ? 0xFF : 0x00, sizeof(aData));
  40     }
  41
  42     bool operator!=(const SdrLayerIDSet& rCmpSet) const
  43     {
  44         return (memcmp(aData, rCmpSet.aData, sizeof(aData))!=0);
  45     }
  46
  47     void Set(SdrLayerID a)
  48     {
  49         const sal_Int16 nId = a.get();
  50         if (nId >= 0 && nId < 256)
  51             aData[nId / 8] |= 1 << (nId % 8);
  52     }
  53
  54     void Clear(SdrLayerID a)
  55     {
  56         const sal_Int16 nId = a.get();
  57         if (nId >= 0 && nId < 256)
  58             aData[nId / 8] &= ~(1 << (nId % 8));
  59     }
  60
  61     void Set(SdrLayerID a, bool b)
  62     {
  63         if(b)
  64             Set(a);
  65         else
  66             Clear(a);
  67     }
  68
  69     bool IsSet(SdrLayerID a) const
  70     {
  71         const sal_Int16 nId = a.get();
  72         return nId >= 0 && nId < 256 && (aData[nId / 8] & 1 << nId % 8) != 0;
  73     }
  74
  75     void SetAll()
  76     {
  77         memset(aData, 0xFF, sizeof(aData));
  78     }
  79
  80     void ClearAll()
  81     {
  82         memset(aData, 0x00, sizeof(aData));
  83     }
  84
  85     bool IsEmpty() const;
  86
  87     void operator&=(const SdrLayerIDSet& r2ndSet);
  88
  89     // initialize this set with a UNO sequence of sal_Int8 (e.g. as stored in settings.xml)
  90     void PutValue(const css::uno::Any & rAny);
  91
  92 };
  93
  94 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */