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             return mpObject->isVisibleOnAnyOfTheseLayers(pPV->GetVisibleLayers());
  72         }
  73         else
  74         {
  75             return true;
  76         }
  77     }
  78     else if (bMaster && (!mpObject || !mpObject->IsNotVisibleAsMaster()))
  79     {
  80         if (pPg->TRG_HasMasterPage())
  81         {
  82             SdrPage& rMasterPage = pPg->TRG_GetMasterPage();
  83
  84             if (&rMasterPage == mpPage)
  85             {
  86                 // the page we're looking for is a master page in this PageView
  87                 if (mpObject)
  88                 {
  89                     // Looking for an object? First, determine if it visible in
  90                     // this PageView.
  91                     SdrLayerIDSet aObjLay = pPV->GetVisibleLayers();
  92                     aObjLay &= pPg->TRG_GetMasterPageVisibleLayers();
  93                     if (mpObject->isVisibleOnAnyOfTheseLayers(aObjLay))
  94                     {
  95                         return true;
  96                     } // else, look at the next master page of this page...
  97                 }
  98                 else
  99                 {
 100                     return true;
 101                 }
 102             }
 103         }
 104     }
 105
 106     // master page forbidden or no fitting master page found
 107     return false;
 108 }
 109
 110 SdrView* SdrViewIter::ImpFindView()
 111 {
 112     if (mpModel)
 113     {
 114         const size_t nLsCnt(mpModel->GetSizeOfVector());
 115
 116         while (mnListenerNum < nLsCnt)
 117         {
 118             SfxListener* pLs = mpModel->GetListener(mnListenerNum);
 119             mpCurrentView
 120                 = pLs ? (pLs->IsSdrView() ? static_cast<SdrView*>(pLs) : nullptr) : nullptr;
 121
 122             if (mpCurrentView)
 123             {
 124                 if (mpPage)
 125                 {
 126                     SdrPageView* pPV = mpCurrentView->GetSdrPageView();
 127
 128                     if (pPV && ImpCheckPageView(pPV))
 129                     {
 130                         return mpCurrentView;
 131                     }
 132                 }
 133                 else
 134                 {
 135                     return mpCurrentView;
 136                 }
 137             }
 138
 139             mnListenerNum++;
 140         }
 141     }
 142
 143     mpCurrentView = nullptr;
 144     return mpCurrentView;
 145 }
 146
 147 SdrView* SdrViewIter::FirstView()
 148 {
 149     ImpInitVars();
 150     return ImpFindView();
 151 }
 152
 153 SdrView* SdrViewIter::NextView()
 154 {
 155     mnListenerNum++;
 156     return ImpFindView();
 157 }
 158
 159 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */