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 <comphelper/diagnose_ex.hxx>
  24 #include <svx/unoshape.hxx>
  25 #include <vector>
  26 #include <algorithm>
  27
  28 using namespace ::com::sun::star;
  29 using namespace ::com::sun::star::beans;
  30
  31 using ::com::sun::star::uno::Reference;
  32 using ::com::sun::star::uno::Any;
  33 using ::com::sun::star::uno::Exception;
  34
  35 namespace chart
  36 {
  37
  38 double RelativeSizeHelper::calculate(
  39     double fValue,
  40     const awt::Size & rOldReferenceSize,
  41     const awt::Size & rNewReferenceSize )
  42 {
  43     if( rOldReferenceSize.Width <= 0 ||
  44         rOldReferenceSize.Height <= 0 )
  45         return fValue;
  46
  47     return std::min(
  48         static_cast< double >( rNewReferenceSize.Width )  / static_cast< double >( rOldReferenceSize.Width ),
  49         static_cast< double >( rNewReferenceSize.Height ) / static_cast< double >( rOldReferenceSize.Height ))
  50         * fValue;
  51 }
  52
  53 void RelativeSizeHelper::adaptFontSizes(
  54     SvxShapeText& xTargetProperties,
  55     const awt::Size & rOldReferenceSize,
  56     const awt::Size & rNewReferenceSize )
  57 {
  58     float fFontHeight = 0;
  59
  60     std::vector< OUString > aProperties;
  61     aProperties.emplace_back("CharHeight" );
  62     aProperties.emplace_back("CharHeightAsian" );
  63     aProperties.emplace_back("CharHeightComplex" );
  64
  65     for (auto const& property : aProperties)
  66     {
  67         try
  68         {
  69             if( xTargetProperties.SvxShape::getPropertyValue(property) >>= fFontHeight )
  70             {
  71                 xTargetProperties.SvxShape::setPropertyValue(
  72                     property,
  73                     Any( static_cast< float >(
  74                                  calculate( fFontHeight, rOldReferenceSize, rNewReferenceSize ))));
  75             }
  76         }
  77         catch( const Exception & )
  78         {
  79             DBG_UNHANDLED_EXCEPTION("chart2");
  80         }
  81     }
  82 }
  83
  84 void RelativeSizeHelper::adaptFontSizes(
  85     const Reference< XPropertySet > & xTargetProperties,
  86     const awt::Size & rOldReferenceSize,
  87     const awt::Size & rNewReferenceSize )
  88 {
  89     if( ! xTargetProperties.is())
  90         return;
  91
  92     float fFontHeight = 0;
  93
  94     std::vector< OUString > aProperties;
  95     aProperties.emplace_back("CharHeight" );
  96     aProperties.emplace_back("CharHeightAsian" );
  97     aProperties.emplace_back("CharHeightComplex" );
  98
  99     for (auto const& property : aProperties)
 100     {
 101         try
 102         {
 103             if( xTargetProperties->getPropertyValue(property) >>= fFontHeight )
 104             {
 105                 xTargetProperties->setPropertyValue(
 106                     property,
 107                     Any( static_cast< float >(
 108                                  calculate( fFontHeight, rOldReferenceSize, rNewReferenceSize ))));
 109             }
 110         }
 111         catch( const Exception & )
 112         {
 113             DBG_UNHANDLED_EXCEPTION("chart2");
 114         }
 115     }
 116 }
 117
 118 } //  namespace chart
 119
 120 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */