svx/source/svdraw/svditer.cxx

   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 #include <svx/svditer.hxx>
  21 #include <svx/svdpage.hxx>
  22 #include <svx/svdobj.hxx>
  23 #include <svx/svdmark.hxx>
  24
  25 SdrObjListIter::SdrObjListIter(const SdrObjList* pObjList, SdrIterMode eMode, bool bReverse)
  26 :   maObjList(),
  27     mnIndex(0),
  28     mbReverse(bReverse),
  29     mbUseZOrder(true)
  30 {
  31     if(nullptr != pObjList)
  32     {
  33         ImpProcessObjectList(*pObjList, eMode);
  34     }
  35
  36     Reset();
  37 }
  38
  39 SdrObjListIter::SdrObjListIter(const SdrObjList* pObjList, bool bUseZOrder, SdrIterMode eMode, bool bReverse)
  40 :   maObjList(),
  41     mnIndex(0),
  42     mbReverse(bReverse),
  43     mbUseZOrder(bUseZOrder)
  44 {
  45     if(nullptr != pObjList)
  46     {
  47         // correct when we have no ObjectNavigationOrder
  48         if(!mbUseZOrder && !pObjList->HasObjectNavigationOrder())
  49         {
  50             mbUseZOrder = false;
  51         }
  52
  53         ImpProcessObjectList(*pObjList, eMode);
  54     }
  55
  56     Reset();
  57 }
  58
  59 SdrObjListIter::SdrObjListIter(const SdrObject& rSdrObject, SdrIterMode eMode, bool bReverse)
  60 :   maObjList(),
  61     mnIndex(0),
  62     mbReverse(bReverse),
  63     mbUseZOrder(true)
  64 {
  65     ImpProcessObj(rSdrObject, eMode);
  66     Reset();
  67 }
  68
  69 SdrObjListIter::SdrObjListIter(const SdrPage* pSdrPage, SdrIterMode eMode, bool bReverse)
  70 :   maObjList(),
  71     mnIndex(0),
  72     mbReverse(bReverse),
  73     mbUseZOrder(true)
  74 {
  75     if (const SdrObjList* pList = dynamic_cast<const SdrObjList*>(pSdrPage))
  76         ImpProcessObjectList(*pList, eMode);
  77     Reset();
  78 }
  79
  80 SdrObjListIter::SdrObjListIter( const SdrMarkList& rMarkList, SdrIterMode eMode )
  81 :   maObjList(),
  82     mnIndex(0),
  83     mbReverse(false),
  84     mbUseZOrder(true)
  85 {
  86     ImpProcessMarkList(rMarkList, eMode);
  87     Reset();
  88 }
  89
  90 void SdrObjListIter::ImpProcessObjectList(const SdrObjList& rObjList, SdrIterMode eMode)
  91 {    for(size_t nIdx(0), nCount(rObjList.GetObjCount()); nIdx < nCount; ++nIdx)
  92     {
  93         const SdrObject* pSdrObject(mbUseZOrder
  94             ? rObjList.GetObj(nIdx)
  95             : rObjList.GetObjectForNavigationPosition(nIdx));
  96
  97         if(nullptr == pSdrObject)
  98         {
  99             OSL_ENSURE(false, "SdrObjListIter: corrupted SdrObjList (!)");
 100         }
 101         else
 102         {
 103             ImpProcessObj(*pSdrObject, eMode);
 104         }
 105     }
 106 }
 107
 108 void SdrObjListIter::ImpProcessMarkList(const SdrMarkList& rMarkList, SdrIterMode eMode)
 109 {
 110     for( size_t nIdx = 0, nCount = rMarkList.GetMarkCount(); nIdx < nCount; ++nIdx )
 111     {
 112         if( SdrObject* pObj = rMarkList.GetMark( nIdx )->GetMarkedSdrObj() )
 113         {
 114             ImpProcessObj(*pObj, eMode);
 115         }
 116     }
 117 }
 118
 119 void SdrObjListIter::ImpProcessObj(const SdrObject& rSdrObject, SdrIterMode eMode)
 120 {
 121     // TTTT: Note: The behaviour has changed here, it will now deep-iterate
 122     // for SdrObjGroup and E3dScene. Old version only deep-dived for SdrObjGroup,
 123     // E3dScene was just added flat. This is now more correct, but potentially
 124     // there will exist code in the 3D area that *self-iterates* with local
 125     // functions/methods due to this iterator was not doing the expected thing.
 126     // These will be difficult to find, but in most cases should do no harm,
 127     // but cost runtime. Will need to have an eye on this aspect on continued
 128     // changes...
 129     const SdrObjList* pChildren(rSdrObject.getChildrenOfSdrObject());
 130     const bool bIsGroup(nullptr != pChildren);
 131
 132     if(!bIsGroup || (SdrIterMode::DeepNoGroups != eMode))
 133     {
 134         maObjList.push_back(&rSdrObject);
 135     }
 136
 137     if(bIsGroup && (SdrIterMode::Flat != eMode))
 138     {
 139         ImpProcessObjectList(*pChildren, eMode);
 140     }
 141 }
 142
 143 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */