svx/source/svdraw/svdviter.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/svdviter.hxx>
  21 #include <svx/svdobj.hxx>
  22 #include <svx/svdpage.hxx>
  23 #include <svx/svdmodel.hxx>
  24 #include <svx/svdview.hxx>
  25 #include <svx/svdpagv.hxx>
  26 #include <svx/svdsob.hxx>
  27
  28 void SdrViewIter::ImpInitVars()
  29 {
  30     mnListenerNum = 0;
  31     mpCurrentView = nullptr;
  32 }
  33
  34 SdrViewIter::SdrViewIter(const SdrPage* pPage)
  35 {
  36     mpPage = pPage;
  37     mpModel = pPage ? &pPage->getSdrModelFromSdrPage() : nullptr;
  38     mpObject = nullptr;
  39     ImpInitVars();
  40 }
  41
  42 SdrViewIter::SdrViewIter(const SdrObject* pObject)
  43 {
  44     mpObject = pObject;
  45     mpModel = pObject ? &pObject->getSdrModelFromSdrObject() : nullptr;
  46     mpPage = pObject ? pObject->getSdrPageFromSdrObject() : nullptr;
  47
  48     if (!mpModel || !mpPage)
  49     {
  50         mpModel = nullptr;
  51         mpPage = nullptr;
  52     }
  53
  54     ImpInitVars();
  55 }
  56
  57 bool SdrViewIter::ImpCheckPageView(SdrPageView const* pPV) const
  58 {
  59     if (!mpPage)
  60         return true;
  61
  62     bool bMaster(mpPage->IsMasterPage());
  63     SdrPage* pPg = pPV->GetPage();
  64
  65     if (pPg == mpPage)
  66     {
  67         if (mpObject)
  68         {
  69             // Looking for an object? First, determine if it visible in
  70             // this PageView.
  71             SdrLayerIDSet aObjLay;
  72             mpObject->getMergedHierarchySdrLayerIDSet(aObjLay);
  73             aObjLay &= pPV->GetVisibleLayers();
  74             return !aObjLay.IsEmpty();
  75         }
  76         else
  77         {
  78             return true;
  79         }
  80     }
  81     else if (bMaster && (!mpObject || !mpObject->IsNotVisibleAsMaster()))
  82     {
  83         if (pPg->TRG_HasMasterPage())
  84         {
  85             SdrPage& rMasterPage = pPg->TRG_GetMasterPage();
  86
  87             if (&rMasterPage == mpPage)
  88             {
  89                 // the page we're looking for is a master page in this PageView
  90                 if (mpObject)
  91                 {
  92                     // Looking for an object? First, determine if it visible in
  93                     // this PageView.
  94                     SdrLayerIDSet aObjLay;
  95                     mpObject->getMergedHierarchySdrLayerIDSet(aObjLay);
  96                     aObjLay &= pPV->GetVisibleLayers();
  97                     aObjLay &= pPg->TRG_GetMasterPageVisibleLayers();
  98
  99                     if (!aObjLay.IsEmpty())
 100                     {
 101                         return true;
 102                     } // else, look at the next master page of this page...
 103                 }
 104                 else
 105                 {
 106                     return true;
 107                 }
 108             }
 109         }
 110     }
 111
 112     // master page forbidden or no fitting master page found
 113     return false;
 114 }
 115
 116 SdrView* SdrViewIter::ImpFindView()
 117 {
 118     if (mpModel)
 119     {
 120         const size_t nLsCnt(mpModel->GetSizeOfVector());
 121
 122         while (mnListenerNum < nLsCnt)
 123         {
 124             SfxListener* pLs = mpModel->GetListener(mnListenerNum);
 125             mpCurrentView = dynamic_cast<SdrView*>(pLs);
 126
 127             if (mpCurrentView)
 128             {
 129                 if (mpPage)
 130                 {
 131                     SdrPageView* pPV = mpCurrentView->GetSdrPageView();
 132
 133                     if (pPV && ImpCheckPageView(pPV))
 134                     {
 135                         return mpCurrentView;
 136                     }
 137                 }
 138                 else
 139                 {
 140                     return mpCurrentView;
 141                 }
 142             }
 143
 144             mnListenerNum++;
 145         }
 146     }
 147
 148     mpCurrentView = nullptr;
 149     return mpCurrentView;
 150 }
 151
 152 SdrView* SdrViewIter::FirstView()
 153 {
 154     ImpInitVars();
 155     return ImpFindView();
 156 }
 157
 158 SdrView* SdrViewIter::NextView()
 159 {
 160     mnListenerNum++;
 161     return ImpFindView();
 162 }
 163
 164 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */