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.
   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 #ifndef PAGE_LIST_WATCHER_HXX
  21 #define PAGE_LIST_WATCHER_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     sal_Bool                        mbPageListValid;
  46     sal_uInt32                      mnVisiblePageCount;
  47
  48     void ImpRecreateSortedPageListOnDemand();
  49     virtual sal_uInt32 ImpGetPageCount() const = 0;
  50
  51     /** Return the page with the given index.
  52         @param nIndex
  53             When given an invalid index then NULL is returned.
  54     */
  55     virtual SdPage* ImpGetPage (sal_uInt32 nIndex) const = 0;
  56
  57 public:
  58     ImpPageListWatcher(const SdrModel& rModel);
  59     virtual ~ImpPageListWatcher();
  60
  61     void Invalidate() { mbPageListValid = sal_False; }
  62     SdPage* GetSdPage(PageKind ePgKind, sal_uInt32 nPgNum = 0L);
  63     sal_uInt32 GetSdPageCount(PageKind ePgKind);
  64     sal_uInt32 GetVisibleSdPageCount();
  65 };
  66
  67 //////////////////////////////////////////////////////////////////////////////
  68
  69 class ImpDrawPageListWatcher : public ImpPageListWatcher
  70 {
  71 protected:
  72     virtual sal_uInt32 ImpGetPageCount() const;
  73     virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const;
  74
  75 public:
  76     ImpDrawPageListWatcher(const SdrModel& rModel);
  77     virtual ~ImpDrawPageListWatcher();
  78 };
  79
  80 //////////////////////////////////////////////////////////////////////////////
  81
  82 class ImpMasterPageListWatcher : public ImpPageListWatcher
  83 {
  84 protected:
  85     virtual sal_uInt32 ImpGetPageCount() const;
  86     virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const;
  87
  88 public:
  89     ImpMasterPageListWatcher(const SdrModel& rModel);
  90     virtual ~ImpMasterPageListWatcher();
  91 };
  92
  93 #endif
  94
  95 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */