xmloff/source/core/xmlmultiimagehelper.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 <xmloff/xmlmultiimagehelper.hxx>
  21 #include <rtl/ustring.hxx>
  22
  23 //////////////////////////////////////////////////////////////////////////////
  24
  25 using namespace ::com::sun::star;
  26
  27 //////////////////////////////////////////////////////////////////////////////
  28
  29 namespace
  30 {
  31     sal_uInt32 getQualityIndex(const OUString& rString)
  32     {
  33         sal_uInt32 nRetval(0);
  34
  35         // pixel formats first
  36         if(rString.endsWithAsciiL(".bmp", 4))
  37         {
  38             return 10;
  39         }
  40         if(rString.endsWithAsciiL(".gif", 4))
  41         {
  42             return 20;
  43         }
  44         if(rString.endsWithAsciiL(".jpg", 4))
  45         {
  46             return 30;
  47         }
  48         if(rString.endsWithAsciiL(".png", 4))
  49         {
  50             return 40;
  51         }
  52
  53         // vector formats, prefer always
  54         if(rString.endsWithAsciiL(".svm", 4))
  55         {
  56             return 1000;
  57         }
  58         if(rString.endsWithAsciiL(".wmf", 4))
  59         {
  60             return 1010;
  61         }
  62         if(rString.endsWithAsciiL(".emf", 4))
  63         {
  64             return 1020;
  65         }
  66         else if(rString.endsWithAsciiL(".svg", 4))
  67         {
  68             return 1030;
  69         }
  70
  71         return nRetval;
  72     }
  73 }
  74
  75 //////////////////////////////////////////////////////////////////////////////
  76
  77 MultiImageImportHelper::MultiImageImportHelper()
  78 :   maImplContextVector(),
  79     mbSupportsMultipleContents(false)
  80 {
  81 }
  82
  83 MultiImageImportHelper::~MultiImageImportHelper()
  84 {
  85     while(!maImplContextVector.empty())
  86     {
  87         delete *(maImplContextVector.end() - 1);
  88         maImplContextVector.pop_back();
  89     }
  90 }
  91
  92 SvXMLImportContextRef MultiImageImportHelper::solveMultipleImages()
  93 {
  94     SvXMLImportContextRef pContext;
  95     if(maImplContextVector.size() > 1)
  96     {
  97         // multiple child contexts were imported, decide which is the most valuable one
  98         // and remove the rest
  99         sal_uInt32 nIndexOfPreferred(maImplContextVector.size());
 100         sal_uInt32 nBestQuality(0), a(0);
 101
 102         for(a = 0; a < maImplContextVector.size(); a++)
 103         {
 104             const OUString aStreamURL(getGraphicURLFromImportContext(**maImplContextVector[a]));
 105             const sal_uInt32 nNewQuality(getQualityIndex(aStreamURL));
 106
 107             if(nNewQuality > nBestQuality)
 108             {
 109                 nBestQuality = nNewQuality;
 110                 nIndexOfPreferred = a;
 111             }
 112         }
 113
 114         // correct if needed, default is to use the last entry
 115         if(nIndexOfPreferred >= maImplContextVector.size())
 116         {
 117             nIndexOfPreferred = maImplContextVector.size() - 1;
 118         }
 119
 120         // Take out the most valuable one
 121         const std::vector< SvXMLImportContextRef* >::iterator aRemove(maImplContextVector.begin() + nIndexOfPreferred);
 122         pContext = **aRemove;
 123         delete *aRemove;
 124         maImplContextVector.erase(aRemove);
 125
 126         // remove the rest from parent
 127         for(a = 0; a < maImplContextVector.size(); a++)
 128         {
 129             removeGraphicFromImportContext(**maImplContextVector[a]);
 130         }
 131     }
 132     else if (maImplContextVector.size() == 1)
 133     {
 134         pContext = *maImplContextVector.front();
 135     }
 136
 137     return pContext;
 138 }
 139
 140 void MultiImageImportHelper::addContent(const SvXMLImportContext& rSvXMLImportContext)
 141 {
 142     if(dynamic_cast< const SvXMLImportContext* >(&rSvXMLImportContext))
 143     {
 144         maImplContextVector.push_back(new SvXMLImportContextRef(const_cast< SvXMLImportContext* >(&rSvXMLImportContext)));
 145     }
 146 }
 147
 148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */