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