AccessibleChartElement.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include "AccessibleChartElement.hxx"
#include <CharacterProperties.hxx>
#include <ChartModel.hxx>
#include <ObjectIdentifier.hxx>
#include <ObjectNameProvider.hxx>
#include <servicenames.hxx>
 
#include <com/sun/star/awt/XDevice.hpp>
#include <com/sun/star/chart2/XTitle.hpp>
#include <com/sun/star/beans/XMultiPropertySet.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/view/XSelectionSupplier.hpp>
 
#include <comphelper/diagnose_ex.hxx>
 
using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
 
using ::com::sun::star::uno::UNO_QUERY;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;
 
namespace chart
{
 
AccessibleChartElement::AccessibleChartElement(
    const AccessibleElementInfo & rAccInfo,
    bool bMayHaveChildren ) :
        impl::AccessibleChartElement_Base( rAccInfo, bMayHaveChildren, false/*bAlwaysTransparent*/ ),
        m_bHasText( false )
{
    AddState( AccessibleStateType::TRANSIENT );
}
 
AccessibleChartElement::~AccessibleChartElement()
{
    OSL_ASSERT( CheckDisposeState( false /* don't throw exceptions */ ) );
}
 
// ________ protected ________
 
bool AccessibleChartElement::ImplUpdateChildren()
{
    bool bResult = false;
    Reference< chart2::XTitle > xTitle(
        ObjectIdentifier::getObjectPropertySet(
            GetInfo().m_aOID.getObjectCID(), GetInfo().m_xChartDocument ),
        uno::UNO_QUERY );
    m_bHasText = xTitle.is();
 
    if( m_bHasText )
    {
        InitTextEdit();
        bResult = true;
    }
    else
        bResult = AccessibleBase::ImplUpdateChildren();
 
    return bResult;
}
 
void AccessibleChartElement::InitTextEdit()
{
    if( ! m_xTextHelper.is())
    {
        // get hard reference
        Reference< view::XSelectionSupplier > xSelSupp( GetInfo().m_xSelectionSupplier );
        // get factory from selection supplier (controller)
        Reference< lang::XMultiServiceFactory > xFact( xSelSupp, uno::UNO_QUERY );
        if( xFact.is())
        {
            m_xTextHelper.set(
                xFact->createInstance( CHART_ACCESSIBLE_TEXT_SERVICE_NAME ), uno::UNO_QUERY );
        }
    }
 
    if( !m_xTextHelper.is())
        return;
 
    try
    {
        Reference< lang::XInitialization > xInit( m_xTextHelper, uno::UNO_QUERY_THROW );
        Sequence< uno::Any > aArgs{ uno::Any(GetInfo().m_aOID.getObjectCID()),
                                    uno::Any(Reference< XAccessible >( this )),
                                    uno::Any(Reference< awt::XWindow >( GetInfo().m_xWindow )) };
        xInit->initialize( aArgs );
    }
    catch( const uno::Exception & )
    {
        DBG_UNHANDLED_EXCEPTION("chart2");
    }
}
 
//             Interfaces
 
// ________ AccessibleBase::XAccessibleContext ________
Reference< XAccessible > AccessibleChartElement::ImplGetAccessibleChildById( sal_Int64 i ) const
{
    Reference< XAccessible > xResult;
 
    if( m_bHasText )
        xResult.set( m_xTextHelper->getAccessibleChild( i ));
    else
        xResult.set( AccessibleBase::ImplGetAccessibleChildById( i ));
 
    return xResult;
}
 
sal_Int64 AccessibleChartElement::ImplGetAccessibleChildCount() const
{
    if( m_bHasText )
    {
        if( m_xTextHelper.is())
            return m_xTextHelper->getAccessibleChildCount();
        return 0;
    }
 
    return AccessibleBase::ImplGetAccessibleChildCount();
}
 
// ________ XServiceInfo ________
OUString SAL_CALL AccessibleChartElement::getImplementationName()
{
    return "AccessibleChartElement";
}
 
// ________ AccessibleChartElement::XAccessibleContext (override) ________
OUString SAL_CALL AccessibleChartElement::getAccessibleName()
{
    return ObjectNameProvider::getNameForCID(
        GetInfo().m_aOID.getObjectCID(), GetInfo().m_xChartDocument );
}
 
// ________ AccessibleChartElement::XAccessibleContext (override) ________
OUString SAL_CALL AccessibleChartElement::getAccessibleDescription()
{
    return getToolTipText();
}
 
// ________ AccessibleChartElement::XAccessibleExtendedComponent ________
Reference< awt::XFont > SAL_CALL AccessibleChartElement::getFont()
{
    CheckDisposeState();
 
    Reference< awt::XFont > xFont;
    Reference< awt::XDevice > xDevice( Reference< awt::XWindow >( GetInfo().m_xWindow ), uno::UNO_QUERY );
 
    if( xDevice.is())
    {
        Reference< beans::XMultiPropertySet > xObjProp(
            ObjectIdentifier::getObjectPropertySet(
                GetInfo().m_aOID.getObjectCID(), GetInfo().m_xChartDocument ), uno::UNO_QUERY );
        awt::FontDescriptor aDescr(
            CharacterProperties::createFontDescriptorFromPropertySet( xObjProp ));
        xFont = xDevice->getFont( aDescr );
    }
 
    return xFont;
}
 
OUString SAL_CALL AccessibleChartElement::getTitledBorderText()
{
    return OUString();
}
 
OUString SAL_CALL AccessibleChartElement::getToolTipText()
{
    CheckDisposeState();
 
    return ObjectNameProvider::getHelpText(
        GetInfo().m_aOID.getObjectCID(), GetInfo().m_xChartDocument );
}
 
// ________ XAccessibleComponent ________
sal_Bool SAL_CALL AccessibleChartElement::containsPoint( const awt::Point& aPoint )
{
    return AccessibleBase::containsPoint( aPoint );
}
 
Reference< XAccessible > SAL_CALL AccessibleChartElement::getAccessibleAtPoint( const awt::Point& aPoint )
{
    return AccessibleBase::getAccessibleAtPoint( aPoint );
}
 
awt::Rectangle SAL_CALL AccessibleChartElement::getBounds()
{
    return AccessibleBase::getBounds();
}
 
awt::Point SAL_CALL AccessibleChartElement::getLocation()
{
    return AccessibleBase::getLocation();
}
 
awt::Point SAL_CALL AccessibleChartElement::getLocationOnScreen()
{
    return AccessibleBase::getLocationOnScreen();
}
 
awt::Size SAL_CALL AccessibleChartElement::getSize()
{
    return AccessibleBase::getSize();
}
 
void SAL_CALL AccessibleChartElement::grabFocus()
{
    return AccessibleBase::grabFocus();
}
 
sal_Int32 SAL_CALL AccessibleChartElement::getForeground()
{
    return AccessibleBase::getForeground();
}
 
sal_Int32 SAL_CALL AccessibleChartElement::getBackground()
{
    return AccessibleBase::getBackground();
}
 
} // namespace chart
 
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