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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "ConfigColorScheme.hxx"
#include "ContainerHelper.hxx"
#include "macros.hxx"
#include <unotools/configitem.hxx>
#include <sal/macros.h>
#include <cppuhelper/supportsservice.hxx>
#include <comphelper/sequence.hxx>
#include <set>
using namespace ::com::sun::star;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;
namespace
{
static const char aSeriesPropName[] = "Series";
} // anonymous namespace
namespace chart
{
uno::Reference< chart2::XColorScheme > createConfigColorScheme( const uno::Reference< uno::XComponentContext > & xContext )
{
return new ConfigColorScheme( xContext );
}
namespace impl
{
class ChartConfigItem : public ::utl::ConfigItem
{
public:
explicit ChartConfigItem( ConfigColorScheme & rListener );
virtual ~ChartConfigItem() {}
void addPropertyNotification( const OUString & rPropertyName );
uno::Any getProperty( const OUString & aPropertyName );
protected:
// ____ ::utl::ConfigItem ____
virtual void ImplCommit() override;
virtual void Notify( const Sequence< OUString > & aPropertyNames ) override;
private:
ConfigColorScheme & m_rListener;
::std::set< OUString > m_aPropertiesToNotify;
};
ChartConfigItem::ChartConfigItem( ConfigColorScheme & rListener ) :
::utl::ConfigItem( "Office.Chart/DefaultColor" ),
m_rListener( rListener )
{}
void ChartConfigItem::Notify( const Sequence< OUString > & aPropertyNames )
{
for( sal_Int32 nIdx=0; nIdx<aPropertyNames.getLength(); ++nIdx )
{
if( m_aPropertiesToNotify.find( aPropertyNames[nIdx] ) != m_aPropertiesToNotify.end())
m_rListener.notify( aPropertyNames[nIdx] );
}
}
void ChartConfigItem::ImplCommit()
{}
void ChartConfigItem::addPropertyNotification( const OUString & rPropertyName )
{
m_aPropertiesToNotify.insert( rPropertyName );
EnableNotification( comphelper::containerToSequence<OUString>( m_aPropertiesToNotify ));
}
uno::Any ChartConfigItem::getProperty( const OUString & aPropertyName )
{
Sequence< uno::Any > aValues(
GetProperties( Sequence< OUString >( &aPropertyName, 1 )));
if( ! aValues.getLength())
return uno::Any();
return aValues[0];
}
} // namespace impl
// explicit
ConfigColorScheme::ConfigColorScheme(
const Reference< uno::XComponentContext > & xContext ) :
m_xContext( xContext ),
m_nNumberOfColors( 0 ),
m_bNeedsUpdate( true )
{
}
ConfigColorScheme::~ConfigColorScheme()
{}
void ConfigColorScheme::retrieveConfigColors()
{
if( ! m_xContext.is())
return;
// create config item if necessary
if( ! m_apChartConfigItem.get())
{
m_apChartConfigItem.reset(
new impl::ChartConfigItem( *this ));
m_apChartConfigItem->addPropertyNotification( aSeriesPropName );
}
OSL_ASSERT( m_apChartConfigItem.get());
if( ! m_apChartConfigItem.get())
return;
// retrieve colors
uno::Any aValue(
m_apChartConfigItem->getProperty( aSeriesPropName ));
if( aValue >>= m_aColorSequence )
m_nNumberOfColors = m_aColorSequence.getLength();
m_bNeedsUpdate = false;
}
// ____ XColorScheme ____
::sal_Int32 SAL_CALL ConfigColorScheme::getColorByIndex( ::sal_Int32 nIndex )
throw (uno::RuntimeException, std::exception)
{
if( m_bNeedsUpdate )
retrieveConfigColors();
if( m_nNumberOfColors > 0 )
return static_cast< sal_Int32 >( m_aColorSequence[ nIndex % m_nNumberOfColors ] );
// fall-back: hard-coded standard colors
static const sal_Int32 nDefaultColors[] = {
0x9999ff, 0x993366, 0xffffcc,
0xccffff, 0x660066, 0xff8080,
0x0066cc, 0xccccff, 0x000080,
0xff00ff, 0x00ffff, 0xffff00
};
static const sal_Int32 nMaxDefaultColors = SAL_N_ELEMENTS( nDefaultColors );
return nDefaultColors[ nIndex % nMaxDefaultColors ];
}
void ConfigColorScheme::notify( const OUString & rPropertyName )
{
if( rPropertyName == aSeriesPropName )
m_bNeedsUpdate = true;
}
Sequence< OUString > ConfigColorScheme::getSupportedServiceNames_Static()
{
Sequence<OUString> aServices { "com.sun.star.chart2.ColorScheme" };
return aServices;
}
// implement XServiceInfo methods basing upon getSupportedServiceNames_Static
OUString SAL_CALL ConfigColorScheme::getImplementationName()
throw( css::uno::RuntimeException, std::exception )
{
return getImplementationName_Static();
}
OUString ConfigColorScheme::getImplementationName_Static()
{
return OUString("com.sun.star.comp.chart2.ConfigDefaultColorScheme") ;
}
sal_Bool SAL_CALL ConfigColorScheme::supportsService( const OUString& rServiceName )
throw( css::uno::RuntimeException, std::exception )
{
return cppu::supportsService(this, rServiceName);
}
css::uno::Sequence< OUString > SAL_CALL ConfigColorScheme::getSupportedServiceNames()
throw( css::uno::RuntimeException, std::exception )
{
return getSupportedServiceNames_Static();
}
} // namespace chart
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * SAL_CALL
com_sun_star_comp_chart2_ConfigDefaultColorScheme_get_implementation(css::uno::XComponentContext *context,
css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(new ::chart::ConfigColorScheme(context));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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