chart2/source/tools/LegendHelper.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 "LegendHelper.hxx"
  21 #include "macros.hxx"
  22 #include <com/sun/star/chart/ChartLegendExpansion.hpp>
  23 #include <com/sun/star/chart2/LegendPosition.hpp>
  24 #include <com/sun/star/chart2/RelativePosition.hpp>
  25 #include <com/sun/star/chart2/XChartDocument.hpp>
  26 #include <com/sun/star/chart2/XLegend.hpp>
  27 #include <com/sun/star/lang/XServiceInfo.hpp>
  28
  29 using namespace ::com::sun::star;
  30 using ::com::sun::star::uno::Reference;
  31
  32 //.............................................................................
  33 namespace chart
  34 {
  35 //.............................................................................
  36
  37
  38 Reference< chart2::XLegend > LegendHelper::showLegend( const Reference< frame::XModel >& xModel
  39                                                     , const uno::Reference< uno::XComponentContext >& xContext )
  40 {
  41     uno::Reference< chart2::XLegend > xLegend = LegendHelper::getLegend( xModel, xContext, true );
  42     uno::Reference< beans::XPropertySet > xProp( xLegend, uno::UNO_QUERY );
  43     if( xProp.is())
  44     {
  45         xProp->setPropertyValue( "Show", uno::makeAny(sal_True) );
  46
  47         chart2::RelativePosition aRelativePosition;
  48         if( !(xProp->getPropertyValue( "RelativePosition") >>=  aRelativePosition) )
  49         {
  50             chart2::LegendPosition ePos = chart2::LegendPosition_LINE_END;
  51             if( !(xProp->getPropertyValue( "AnchorPosition") >>= ePos ) )
  52                 xProp->setPropertyValue( "AnchorPosition", uno::makeAny( ePos ));
  53
  54             ::com::sun::star::chart::ChartLegendExpansion eExpansion =
  55                     ( ePos == chart2::LegendPosition_LINE_END ||
  56                       ePos == chart2::LegendPosition_LINE_START )
  57                     ? ::com::sun::star::chart::ChartLegendExpansion_HIGH
  58                     : ::com::sun::star::chart::ChartLegendExpansion_WIDE;
  59             if( !(xProp->getPropertyValue( "Expansion") >>= eExpansion ) )
  60                 xProp->setPropertyValue( "Expansion", uno::makeAny( eExpansion ));
  61
  62             xProp->setPropertyValue( "RelativePosition", uno::Any());
  63         }
  64
  65     }
  66     return xLegend;
  67 }
  68
  69 void LegendHelper::hideLegend( const Reference< frame::XModel >& xModel )
  70 {
  71     uno::Reference< chart2::XLegend > xLegend = LegendHelper::getLegend( xModel, 0, false );
  72     uno::Reference< beans::XPropertySet > xProp( xLegend, uno::UNO_QUERY );
  73     if( xProp.is())
  74     {
  75         xProp->setPropertyValue( "Show", uno::makeAny(sal_False) );
  76     }
  77 }
  78
  79 uno::Reference< chart2::XLegend > LegendHelper::getLegend(
  80       const uno::Reference< frame::XModel >& xModel
  81     , const uno::Reference< uno::XComponentContext >& xContext
  82     , bool bCreate )
  83 {
  84     uno::Reference< chart2::XLegend > xResult;
  85
  86     uno::Reference< chart2::XChartDocument > xChartDoc( xModel, uno::UNO_QUERY );
  87     if( xChartDoc.is())
  88     {
  89         try
  90         {
  91             uno::Reference< chart2::XDiagram > xDia( xChartDoc->getFirstDiagram());
  92             if( xDia.is() )
  93             {
  94                 xResult.set( xDia->getLegend() );
  95                 if( bCreate && !xResult.is() && xContext.is() )
  96                 {
  97                     xResult.set( xContext->getServiceManager()->createInstanceWithContext(
  98                         "com.sun.star.chart2.Legend", xContext ), uno::UNO_QUERY );
  99                     xDia->setLegend( xResult );
 100                 }
 101             }
 102             else if(bCreate)
 103             {
 104                 OSL_FAIL("need diagram for creation of legend");
 105             }
 106         }
 107         catch( const uno::Exception & ex )
 108         {
 109             ASSERT_EXCEPTION( ex );
 110         }
 111     }
 112
 113     return xResult;
 114 }
 115
 116 bool LegendHelper::hasLegend( const uno::Reference< chart2::XDiagram > & xDiagram )
 117 {
 118     bool bReturn = false;
 119     if( xDiagram.is())
 120     {
 121         uno::Reference< beans::XPropertySet > xLegendProp( xDiagram->getLegend(), uno::UNO_QUERY );
 122         if( xLegendProp.is())
 123             xLegendProp->getPropertyValue( "Show") >>= bReturn;
 124     }
 125
 126     return bReturn;
 127 }
 128
 129 //.............................................................................
 130 } //namespace chart
 131 //.............................................................................
 132
 133 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */