chart2/source/tools/ConfigColorScheme.cxx

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  27
  28 // MARKER(update_precomp.py): autogen include statement, do not remove
  29 #include "precompiled_chart2.hxx"
  30
  31 #include "ConfigColorScheme.hxx"
  32 #include "ContainerHelper.hxx"
  33 #include "macros.hxx"
  34
  35 #include <unotools/configitem.hxx>
  36
  37 #include <set>
  38
  39 using namespace ::com::sun::star;
  40
  41 using ::com::sun::star::uno::Reference;
  42 using ::com::sun::star::uno::Sequence;
  43 using ::rtl::OUString;
  44
  45 namespace
  46 {
  47
  48 static const OUString aSeriesPropName( RTL_CONSTASCII_USTRINGPARAM("Series"));
  49
  50 } // anonymous namespace
  51
  52 // --------------------------------------------------------------------------------
  53
  54 namespace chart
  55 {
  56
  57 uno::Reference< chart2::XColorScheme > createConfigColorScheme( const uno::Reference< uno::XComponentContext > & xContext )
  58 {
  59     return new ConfigColorScheme( xContext );
  60 }
  61
  62 namespace impl
  63 {
  64 class ChartConfigItem : public ::utl::ConfigItem
  65 {
  66 public:
  67     explicit ChartConfigItem( ConfigItemListener & rListener );
  68     virtual ~ChartConfigItem();
  69
  70     void addPropertyNotification( const OUString & rPropertyName );
  71
  72     uno::Any getProperty( const OUString & aPropertyName );
  73
  74 protected:
  75     // ____ ::utl::ConfigItem ____
  76     virtual void                    Commit();
  77     virtual void Notify( const Sequence< OUString > & aPropertyNames );
  78
  79 private:
  80     ConfigItemListener & m_rListener;
  81     ::std::set< OUString >        m_aPropertiesToNotify;
  82 };
  83
  84 ChartConfigItem::ChartConfigItem( ConfigItemListener & rListener ) :
  85         ::utl::ConfigItem( C2U("Office.Chart/DefaultColor")),
  86     m_rListener( rListener )
  87 {}
  88
  89 ChartConfigItem::~ChartConfigItem()
  90 {}
  91
  92 void ChartConfigItem::Notify( const Sequence< OUString > & aPropertyNames )
  93 {
  94     for( sal_Int32 nIdx=0; nIdx<aPropertyNames.getLength(); ++nIdx )
  95     {
  96         if( m_aPropertiesToNotify.find( aPropertyNames[nIdx] ) != m_aPropertiesToNotify.end())
  97             m_rListener.notify( aPropertyNames[nIdx] );
  98     }
  99 }
 100
 101 void ChartConfigItem::Commit()
 102 {}
 103
 104 void ChartConfigItem::addPropertyNotification( const OUString & rPropertyName )
 105 {
 106     m_aPropertiesToNotify.insert( rPropertyName );
 107     EnableNotification( ContainerHelper::ContainerToSequence( m_aPropertiesToNotify ));
 108 }
 109
 110 uno::Any ChartConfigItem::getProperty( const OUString & aPropertyName )
 111 {
 112     Sequence< uno::Any > aValues(
 113         GetProperties( Sequence< OUString >( &aPropertyName, 1 )));
 114     if( ! aValues.getLength())
 115         return uno::Any();
 116     return aValues[0];
 117 }
 118
 119 } // namespace impl
 120
 121 // --------------------------------------------------------------------------------
 122
 123 // explicit
 124 ConfigColorScheme::ConfigColorScheme(
 125     const Reference< uno::XComponentContext > & xContext ) :
 126         m_xContext( xContext  ),
 127         m_nNumberOfColors( 0 ),
 128         m_bNeedsUpdate( true )
 129 {
 130 }
 131
 132 ConfigColorScheme::~ConfigColorScheme()
 133 {}
 134
 135 void ConfigColorScheme::retrieveConfigColors()
 136 {
 137     if( ! m_xContext.is())
 138         return;
 139
 140     // create config item if necessary
 141     if( ! m_apChartConfigItem.get())
 142     {
 143         m_apChartConfigItem.reset(
 144             new impl::ChartConfigItem( *this ));
 145         m_apChartConfigItem->addPropertyNotification( aSeriesPropName );
 146     }
 147     OSL_ASSERT( m_apChartConfigItem.get());
 148     if( ! m_apChartConfigItem.get())
 149         return;
 150
 151     // retrieve colors
 152     uno::Any aValue(
 153         m_apChartConfigItem->getProperty( aSeriesPropName ));
 154     if( aValue >>= m_aColorSequence )
 155         m_nNumberOfColors = m_aColorSequence.getLength();
 156     m_bNeedsUpdate = false;
 157 }
 158
 159 // ____ XColorScheme ____
 160 ::sal_Int32 SAL_CALL ConfigColorScheme::getColorByIndex( ::sal_Int32 nIndex )
 161     throw (uno::RuntimeException)
 162 {
 163     if( m_bNeedsUpdate )
 164         retrieveConfigColors();
 165
 166     if( m_nNumberOfColors > 0 )
 167         return static_cast< sal_Int32 >( m_aColorSequence[ nIndex % m_nNumberOfColors ] );
 168
 169     // fall-back: hard-coded standard colors
 170     static sal_Int32 nDefaultColors[] =  {
 171         0x9999ff, 0x993366, 0xffffcc,
 172         0xccffff, 0x660066, 0xff8080,
 173         0x0066cc, 0xccccff, 0x000080,
 174         0xff00ff, 0x00ffff, 0xffff00
 175     };
 176
 177     static const sal_Int32 nMaxDefaultColors = sizeof( nDefaultColors ) / sizeof( sal_Int32 );
 178     return nDefaultColors[ nIndex % nMaxDefaultColors ];
 179 }
 180
 181 void ConfigColorScheme::notify( const OUString & rPropertyName )
 182 {
 183     if( rPropertyName.equals( aSeriesPropName ))
 184         m_bNeedsUpdate = true;
 185 }
 186
 187 // ================================================================================
 188
 189 Sequence< OUString > ConfigColorScheme::getSupportedServiceNames_Static()
 190 {
 191     Sequence< OUString > aServices( 1 );
 192     aServices[ 0 ] = C2U( "com.sun.star.chart2.ColorScheme" );
 193     return aServices;
 194 }
 195
 196 // implement XServiceInfo methods basing upon getSupportedServiceNames_Static
 197 APPHELPER_XSERVICEINFO_IMPL( ConfigColorScheme,
 198                              C2U( "com.sun.star.comp.chart2.ConfigDefaultColorScheme" ))
 199
 200 // ================================================================================
 201
 202 } //  namespace chart