chart2/source/tools/RelativeSizeHelper.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 "RelativeSizeHelper.hxx"
  21 #include "macros.hxx"
  22
  23 #include <vector>
  24 #include <algorithm>
  25
  26 using namespace ::com::sun::star::awt;
  27 using namespace ::com::sun::star::beans;
  28 using namespace ::std;
  29
  30 using ::com::sun::star::uno::Reference;
  31 using ::com::sun::star::uno::makeAny;
  32 using ::com::sun::star::uno::Exception;
  33
  34 namespace chart
  35 {
  36
  37 double RelativeSizeHelper::calculate(
  38     double fValue,
  39     const Size & rOldReferenceSize,
  40     const Size & rNewReferenceSize )
  41 {
  42     if( rOldReferenceSize.Width <= 0 ||
  43         rOldReferenceSize.Height <= 0 )
  44         return fValue;
  45
  46     return min(
  47         static_cast< double >( rNewReferenceSize.Width )  / static_cast< double >( rOldReferenceSize.Width ),
  48         static_cast< double >( rNewReferenceSize.Height ) / static_cast< double >( rOldReferenceSize.Height ))
  49         * fValue;
  50 }
  51
  52 void RelativeSizeHelper::adaptFontSizes(
  53     const Reference< XPropertySet > & xTargetProperties,
  54     const Size & rOldReferenceSize,
  55     const Size & rNewReferenceSize )
  56 {
  57     if( ! xTargetProperties.is())
  58         return;
  59
  60     float fFontHeight = 0;
  61
  62     vector< OUString > aProperties;
  63     aProperties.push_back( "CharHeight" );
  64     aProperties.push_back( "CharHeightAsian" );
  65     aProperties.push_back( "CharHeightComplex" );
  66
  67     for( vector< OUString >::const_iterator aIt = aProperties.begin();
  68          aIt != aProperties.end(); ++aIt )
  69     {
  70         try
  71         {
  72             if( xTargetProperties->getPropertyValue( *aIt ) >>= fFontHeight )
  73             {
  74                 xTargetProperties->setPropertyValue(
  75                     *aIt,
  76                     makeAny( static_cast< float >(
  77                                  calculate( fFontHeight, rOldReferenceSize, rNewReferenceSize ))));
  78             }
  79         }
  80         catch( const Exception & ex )
  81         {
  82             ASSERT_EXCEPTION( ex );
  83         }
  84     }
  85 }
  86
  87 } //  namespace chart
  88
  89 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */