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