Quelle scrollbar.cxx Sprache: C

/* -*- 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 "scrollbar.hxx"
#include <property.hxx>
#include <services.hxx>
#include <comphelper/property.hxx>
#include <comphelper/streamsection.hxx>
#include <comphelper/basicio.hxx>
#include <rtl/math.hxx>
#include <tools/debug.hxx>
#include <com/sun/star/beans/PropertyAttribute.hpp>
#include <com/sun/star/form/FormComponentType.hpp>

namespace frm
{

    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::beans;
    using namespace ::com::sun::star::form;
    using namespace ::com::sun::star::util;
    using namespace ::com::sun::star::io;

    //= helper

    Any translateExternalDoubleToControlIntValue(
        const Any& _rExternalValue, const Reference< XPropertySet >& _rxProperties,
        const OUString& _rMinValueName, const OUString& _rMaxValueName )
    {
        OSL_ENSURE( _rxProperties.is(), "translateExternalDoubleToControlIntValue: no aggregate!?" );

        sal_Int32 nControlValue( 0 );
        double nExternalValue = 0;
        if ( _rExternalValue >>= nExternalValue )
        {
            if ( std::isinf( nExternalValue ) )
            {
                // set the minimum or maximum of the scroll values
                OUString sLimitPropertyName = std::signbit( nExternalValue )
                    ? _rMinValueName : _rMaxValueName;
                if ( _rxProperties.is() )
                    _rxProperties->getPropertyValue( sLimitPropertyName ) >>= nControlValue;
            }
            else
            {
                nControlValue = static_cast<sal_Int32>(::rtl::math::round( nExternalValue ));
            }
        }
        else
        {
            if ( _rxProperties.is() )
                _rxProperties->getPropertyValue( _rMinValueName ) >>= nControlValue;
        }

        return Any( nControlValue );
    }

    Any translateControlIntToExternalDoubleValue( const Any& _rControlIntValue )
    {
        Any aExternalDoubleValue;
        sal_Int32 nScrollValue = 0;
        if ( _rControlIntValue >>= nScrollValue )
            aExternalDoubleValue <<= static_cast<double>(nScrollValue);
        else
        {
            OSL_FAIL( "translateControlIntToExternalDoubleValue: no integer scroll value!" );
            // aExternalDoubleValue is void here, which is okay for this purpose ...
        }

        return aExternalDoubleValue;
    }

    OScrollBarModel::OScrollBarModel( const Reference<XComponentContext>& _rxFactory )
        :OBoundControlModel( _rxFactory, VCL_CONTROLMODEL_SCROLLBAR, VCL_CONTROL_SCROLLBAR, true, true, false )
        ,m_nDefaultScrollValue( 0 )
    {

        m_nClassId = FormComponentType::SCROLLBAR;
        initValueProperty( PROPERTY_SCROLL_VALUE, PROPERTY_ID_SCROLL_VALUE );
    }

    OScrollBarModel::OScrollBarModel( const OScrollBarModel* _pOriginal, const Reference< XComponentContext >& _rxFactory )
        :OBoundControlModel( _pOriginal, _rxFactory )
    {
        m_nDefaultScrollValue = _pOriginal->m_nDefaultScrollValue;
    }

    OScrollBarModel::~OScrollBarModel( )
    {
    }

    OUString SAL_CALL OScrollBarModel::getImplementationName()
    {
        return u"com.sun.star.comp.forms.OScrollBarModel"_ustr;
    }

        // note that we're passing OControlModel as "base class". This is because
        // OBoundControlModel, our real base class, claims to support the DataAwareControlModel
        // service, which isn't really true for us. We only derive from this class
        // to benefit from the functionality for binding to spreadsheet cells
    Sequence< OUString > SAL_CALL OScrollBarModel::getSupportedServiceNames()
    {
        static constexpr OUString aOwnNames[] { FRM_SUN_COMPONENT_SCROLLBAR, BINDABLE_INTEGER_VALUE_RANGE };

        return ::comphelper::combineSequences(
            getAggregateServiceNames(),
            ::comphelper::concatSequences(
                OControlModel::getSupportedServiceNames_Static(),
                aOwnNames)
        );
    }

    css::uno::Reference< css::util::XCloneable > SAL_CALL OScrollBarModel::createClone()
{
    rtl::Reference<OScrollBarModel> pClone = new OScrollBarModel(this, getContext());
    pClone->clonedFrom(this);
    return pClone;
}

    void OScrollBarModel::describeFixedProperties( Sequence< Property >& _rProps ) const
    {
        OControlModel::describeFixedProperties( _rProps );
        sal_Int32 nOldCount = _rProps.getLength();
        _rProps.realloc( nOldCount + 3);
        css::beans::Property* pProperties = _rProps.getArray() + nOldCount;
        *pProperties++ = css::beans::Property(PROPERTY_DEFAULT_SCROLL_VALUE, PROPERTY_ID_DEFAULT_SCROLL_VALUE, cppu::UnoType<sal_Int32>::get(), css::beans::PropertyAttribute::BOUND);
        *pProperties++ = css::beans::Property(PROPERTY_TABINDEX, PROPERTY_ID_TABINDEX, cppu::UnoType<sal_Int16>::get(), css::beans::PropertyAttribute::BOUND);
        *pProperties++ = css::beans::Property(PROPERTY_CONTROLSOURCEPROPERTY, PROPERTY_ID_CONTROLSOURCEPROPERTY, cppu::UnoType<OUString>::get(), css::beans::PropertyAttribute::READONLY | css::beans::PropertyAttribute::TRANSIENT);
        DBG_ASSERT( pProperties == _rProps.getArray() + _rProps.getLength(), "<...>::describeFixedProperties/getInfoHelper: forgot to adjust the count ?");
    }

    void OScrollBarModel::getFastPropertyValue( Any& _rValue, sal_Int32 _nHandle ) const
    {
        switch ( _nHandle )
        {
            case PROPERTY_ID_DEFAULT_SCROLL_VALUE:
                _rValue <<= m_nDefaultScrollValue;
                break;

            default:
                OBoundControlModel::getFastPropertyValue( _rValue, _nHandle );
        }
    }

    void OScrollBarModel::setFastPropertyValue_NoBroadcast( sal_Int32 _nHandle, const Any& _rValue )
    {
        switch ( _nHandle )
        {
            case PROPERTY_ID_DEFAULT_SCROLL_VALUE:
                OSL_VERIFY( _rValue >>= m_nDefaultScrollValue );
                resetNoBroadcast();
                break;

            default:
                OBoundControlModel::setFastPropertyValue_NoBroadcast( _nHandle, _rValue );
        }
    }

    sal_Bool OScrollBarModel::convertFastPropertyValue(
                Any& _rConvertedValue, Any& _rOldValue, sal_Int32 _nHandle, const Any& _rValue )
    {
        bool bModified( false );
        switch ( _nHandle )
        {
            case PROPERTY_ID_DEFAULT_SCROLL_VALUE:
                bModified = tryPropertyValue( _rConvertedValue, _rOldValue, _rValue, m_nDefaultScrollValue );
                break;

            default:
                bModified = OBoundControlModel::convertFastPropertyValue( _rConvertedValue, _rOldValue, _nHandle, _rValue );
                break;
        }
        return bModified;
    }

    Any OScrollBarModel::getPropertyDefaultByHandle( sal_Int32 _nHandle ) const
    {
        Any aReturn;

        switch ( _nHandle )
        {
        case PROPERTY_ID_DEFAULT_SCROLL_VALUE:
            aReturn <<= sal_Int32(0);
            break;

        default:
            aReturn = OBoundControlModel::getPropertyDefaultByHandle( _nHandle );
            break;
        }

        return aReturn;
    }

    Any OScrollBarModel::translateDbColumnToControlValue( )
    {
        OSL_FAIL( "OScrollBarModel::commitControlValueToDbColumn: never to be called (we're not bound)!" );
        return Any();
    }

    bool OScrollBarModel::commitControlValueToDbColumn( bool /*_bPostReset*/ )
    {
        OSL_FAIL( "OScrollBarModel::commitControlValueToDbColumn: never to be called (we're not bound)!" );
        return true;
    }

    Any OScrollBarModel::getDefaultForReset() const
    {
        return Any( m_nDefaultScrollValue );
    }

    OUString SAL_CALL OScrollBarModel::getServiceName()
    {
        return FRM_SUN_COMPONENT_SCROLLBAR;
    }

    void SAL_CALL OScrollBarModel::write( const Reference< XObjectOutputStream >& _rxOutStream )
    {
        OBoundControlModel::write( _rxOutStream );
        ::osl::MutexGuard aGuard( m_aMutex );

        OStreamSection aSection( _rxOutStream );

        // version
        _rxOutStream->writeShort( 0x0001 );

        // properties
        _rxOutStream << m_nDefaultScrollValue;
        writeHelpTextCompatibly( _rxOutStream );
    }

    void SAL_CALL OScrollBarModel::read( const Reference< XObjectInputStream>& _rxInStream )
    {
        OBoundControlModel::read( _rxInStream );
        ::osl::MutexGuard aGuard( m_aMutex );

        // version
        {
            OStreamSection aSection( _rxInStream );

            sal_uInt16 nVersion = _rxInStream->readShort();
            if ( nVersion == 0x0001 )
            {
                _rxInStream >> m_nDefaultScrollValue;
                readHelpTextCompatibly( _rxInStream );
            }
            else
                defaultCommonProperties();

            // here, everything in the stream section which is left will be skipped
        }
    }

    Any OScrollBarModel::translateExternalValueToControlValue( const Any& _rExternalValue ) const
    {
        return translateExternalDoubleToControlIntValue( _rExternalValue, m_xAggregateSet,
            u"ScrollValueMin"_ustr,
            u"ScrollValueMax"_ustr );
    }

    Any OScrollBarModel::translateControlValueToExternalValue( ) const
    {
        // by definition, the base class simply obtains the property value
        return translateControlIntToExternalDoubleValue( OBoundControlModel::translateControlValueToExternalValue() );
    }

    Sequence< Type > OScrollBarModel::getSupportedBindingTypes()
    {
        return Sequence< Type >( & cppu::UnoType<double>::get(), 1 );
    }

}   // namespace frm

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
com_sun_star_comp_forms_OScrollBarModel_get_implementation(css::uno::XComponentContext* component,
        css::uno::Sequence<css::uno::Any> const &)
{
    return cppu::acquire(new frm::OScrollBarModel(component));
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

quality98%

¤ Dauer der Verarbeitung: 0.10 Sekunden ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.