sd/source/core/PageListWatcher.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.
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   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 #ifndef INCLUDED_SD_SOURCE_CORE_PAGELISTWATCHER_HXX
  21 #define INCLUDED_SD_SOURCE_CORE_PAGELISTWATCHER_HXX
  22
  23 #include <pres.hxx>
  24 #include <sal/types.h>
  25 #include <vector>
  26
  27 class SdPage;
  28 class SdrModel;
  29
  30 /** Maintain a map of page indices to page objects for faster access that
  31     remains valid during deletions and insertions of pages (#109538#).
  32 */
  33 class ImpPageListWatcher
  34 {
  35 protected:
  36     // typedefs for a vector of SdPages
  37     typedef ::std::vector< SdPage* > SdPageVector;
  38
  39     const SdrModel&                 mrModel;
  40
  41     SdPageVector                    maPageVectorStandard;
  42     SdPageVector                    maPageVectorNotes;
  43     SdPage*                         mpHandoutPage;
  44
  45     bool                        mbPageListValid;
  46
  47     void ImpRecreateSortedPageListOnDemand();
  48     virtual sal_uInt32 ImpGetPageCount() const = 0;
  49
  50     /** Return the page with the given index.
  51         @param nIndex
  52             When given an invalid index then NULL is returned.
  53     */
  54     virtual SdPage* ImpGetPage (sal_uInt32 nIndex) const = 0;
  55
  56 public:
  57     explicit ImpPageListWatcher(const SdrModel& rModel);
  58     virtual ~ImpPageListWatcher();
  59
  60     void Invalidate() { mbPageListValid = false; }
  61     SdPage* GetSdPage(PageKind ePgKind, sal_uInt32 nPgNum);
  62     sal_uInt32 GetSdPageCount(PageKind ePgKind);
  63     sal_uInt32 GetVisibleSdPageCount() const;
  64 };
  65
  66 class ImpDrawPageListWatcher : public ImpPageListWatcher
  67 {
  68 protected:
  69     virtual sal_uInt32 ImpGetPageCount() const override;
  70     virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const override;
  71
  72 public:
  73     explicit ImpDrawPageListWatcher(const SdrModel& rModel);
  74     virtual ~ImpDrawPageListWatcher() override;
  75 };
  76
  77 class ImpMasterPageListWatcher : public ImpPageListWatcher
  78 {
  79 protected:
  80     virtual sal_uInt32 ImpGetPageCount() const override;
  81     virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const override;
  82
  83 public:
  84     explicit ImpMasterPageListWatcher(const SdrModel& rModel);
  85     virtual ~ImpMasterPageListWatcher() override;
  86 };
  87
  88 #endif
  89
  90 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */