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 static bool ImpCheckPageView(const SdrPage* pPage, const SdrObject* pObject, SdrPageView const* pPV)
  29 {
  30     if (!pPage)
  31         return true;
  32
  33     bool bMaster(pPage->IsMasterPage());
  34     SdrPage* pPg = pPV->GetPage();
  35
  36     if (pPg == pPage)
  37     {
  38         if (pObject)
  39         {
  40             // Looking for an object? First, determine if it visible in
  41             // this PageView.
  42             return pObject->isVisibleOnAnyOfTheseLayers(pPV->GetVisibleLayers());
  43         }
  44         else
  45         {
  46             return true;
  47         }
  48     }
  49     else if (bMaster && (!pObject || !pObject->IsNotVisibleAsMaster()))
  50     {
  51         if (pPg->TRG_HasMasterPage())
  52         {
  53             SdrPage& rMasterPage = pPg->TRG_GetMasterPage();
  54
  55             if (&rMasterPage == pPage)
  56             {
  57                 // the page we're looking for is a master page in this PageView
  58                 if (pObject)
  59                 {
  60                     // Looking for an object? First, determine if it visible in
  61                     // this PageView.
  62                     SdrLayerIDSet aObjLay = pPV->GetVisibleLayers();
  63                     aObjLay &= pPg->TRG_GetMasterPageVisibleLayers();
  64                     if (pObject->isVisibleOnAnyOfTheseLayers(aObjLay))
  65                     {
  66                         return true;
  67                     } // else, look at the next master page of this page...
  68                 }
  69                 else
  70                 {
  71                     return true;
  72                 }
  73             }
  74         }
  75     }
  76
  77     // master page forbidden or no fitting master page found
  78     return false;
  79 }
  80
  81 namespace SdrViewIter
  82 {
  83 void ForAllViews(const SdrPage* pPage, std::function<void(SdrView*)> f)
  84 {
  85     if (!pPage)
  86         return;
  87     const SdrModel* pModel = &pPage->getSdrModelFromSdrPage();
  88
  89     pModel->ForAllListeners([&pPage, &f](SfxListener* pLs) {
  90         if (!pLs->IsSdrView())
  91             return false;
  92         SdrView* pCurrentView = static_cast<SdrView*>(pLs);
  93         SdrPageView* pPV = pCurrentView->GetSdrPageView();
  94
  95         if (pPV && ImpCheckPageView(pPage, nullptr, pPV))
  96         {
  97             f(pCurrentView);
  98         }
  99         return false;
 100     });
 101 }
 102
 103 void ForAllViews(const SdrObject* pObject, std::function<void(SdrView*)> f)
 104 {
 105     if (!pObject)
 106         return;
 107     const SdrModel* pModel = &pObject->getSdrModelFromSdrObject();
 108     const SdrPage* pPage = pObject->getSdrPageFromSdrObject();
 109     if (!pPage)
 110         return;
 111
 112     pModel->ForAllListeners([&pPage, &pObject, &f](SfxListener* pLs) {
 113         if (!pLs->IsSdrView())
 114             return false;
 115         SdrView* pCurrentView = static_cast<SdrView*>(pLs);
 116         SdrPageView* pPV = pCurrentView->GetSdrPageView();
 117
 118         if (pPV && ImpCheckPageView(pPage, pObject, pPV))
 119         {
 120             f(pCurrentView);
 121         }
 122         return false;
 123     });
 124 }
 125 }
 126 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */