libreoffice/sw/source/core/access/accpara.cxx

 /*************************************************************************
 *
 *  $RCSfile: accpara.cxx,v $
 *
 *  $Revision: 1.4 $
 *
 *  last change: $Author: vg $ $Date: 2002-02-18 17:09:50 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (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.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/

#ifdef PRECOMPILED
#include "core_pch.hxx"
#endif
#ifndef _TXTFRM_HXX
#include <txtfrm.hxx>
#endif
#ifndef _NDTXT_HXX
#include <ndtxt.hxx>
#endif

#pragma hdrstop

#ifndef _VOS_MUTEX_HXX_ //autogen
#include <vos/mutex.hxx>
#endif
#ifndef _SV_SVAPP_HXX //autogen
#include <vcl/svapp.hxx>
#endif
#ifndef _RTL_USTRBUF_HXX_
#include <rtl/ustrbuf.hxx>
#endif

#ifndef _DRAFTS_COM_SUN_STAR_ACCESSIBILITY_ACCESSIBLEROLE_HPP_
#include <drafts/com/sun/star/accessibility/AccessibleRole.hpp>
#endif
#ifndef _DRAFTS_COM_SUN_STAR_ACCESSIBILITY_ACCESSIBLESTATETYPE_HPP_
#include <drafts/com/sun/star/accessibility/AccessibleStateType.hpp>
#endif

#ifndef _UTL_ACCESSIBLESTATESETHELPER_HXX_
#include <unotools/accessiblestatesethelper.hxx>
#endif
#ifndef _COM_SUN_STAR_I18N_WORDTYPE_HPP_
#include <com/sun/star/i18n/WordType.hpp>
#endif

#ifndef _BREAKIT_HXX
#include <breakit.hxx>
#endif

#ifndef _ACCPARA_HXX
#include "accpara.hxx"
#endif
#ifndef _ACCESS_HRC
#include "access.hrc"
#endif

using namespace ::com::sun::star::i18n;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::uno;
using namespace ::drafts::com::sun::star::accessibility;
using namespace ::rtl;

const sal_Char sServiceName[] = "com.sun.star.text.AccessibleParagraphView";
const sal_Char sImplementationName[] = "SwAccessibleParagraph";
const xub_StrLen MAX_DESC_TEXT_LEN = 40;

void SwAccessibleParagraph::SetStates(
        ::utl::AccessibleStateSetHelper& rStateSet )
{
    SwAccessibleContext::SetStates( rStateSet );

    // MULTILINE
    rStateSet.AddState( AccessibleStateType::MULTILINE );

    // SELECTABLE
    rStateSet.AddState( AccessibleStateType::SELECTABLE );

    // TODO: SELECTED
}

SwAccessibleParagraph::SwAccessibleParagraph(
        sal_Int32 nPara,
        const Rectangle& rVisArea,
        const SwTxtFrm *pTxtFrm ) :
    SwAccessibleContext( AccessibleRole::PARAGRAPH, rVisArea, pTxtFrm )
{
    const SwTxtNode *pTxtNd = pTxtFrm->GetTxtNode();
    sal_uInt16 nResId = (pTxtNd->GetOutlineNum() && !pTxtNd->GetNum())
                            ? STR_ACCESS_HEADING_NAME
                            : STR_ACCESS_PARAGRAPH_NAME;
    OUString sArg( OUString::valueOf( nPara ) );
    SetName( GetResource( nResId, &sArg ) );
}

SwAccessibleParagraph::~SwAccessibleParagraph()
{
}

OUString SAL_CALL SwAccessibleParagraph::getAccessibleDescription (void) throw (com::sun::star::uno::RuntimeException)
{
    vos::OGuard aGuard(Application::GetSolarMutex());

    CHECK_FOR_DEFUNC( XAccessibleContext )

    SwTxtFrm *pTxtFrm = PTR_CAST( SwTxtFrm, GetFrm() );
    if( !pTxtFrm )
    {
        THROW_RUNTIME_EXCEPTION( XAccessibleContext, "internal error (no text frame)" );
    }

    const SwTxtNode *pTxtNd = pTxtFrm->GetTxtNode();
    const String& rText = pTxtNd->GetTxt();
    xub_StrLen  nLen = (xub_StrLen)pBreakIt->xBreak->endOfSentence(
                                    rText, 0, pBreakIt->GetLocale(
                                                pTxtNd->GetLang( 0 ) ));
    if( nLen > MAX_DESC_TEXT_LEN )
    {
        nLen = (xub_StrLen)pBreakIt->xBreak->getWordBoundary(
                                rText, MAX_DESC_TEXT_LEN,
                                pBreakIt->GetLocale( pTxtNd->GetLang( MAX_DESC_TEXT_LEN ) ),
                                WordType::ANY_WORD, sal_True ).endPos;
    }

    OUString sArg1( rText.Copy( 0, nLen ) );

    sal_uInt16 nResId;
    OUString sArg2, *pArg2 = 0;
    if( pTxtNd->GetOutlineNum() && !pTxtNd->GetNum() )
    {
        sArg2 = OUString( pTxtNd->GetNumString() );
        if( sArg2.getLength() )
        {
            nResId = STR_ACCESS_HEADING_WITH_NUM_DESC;
            pArg2 = &sArg2;
        }
        else
        {
            nResId = STR_ACCESS_HEADING_DESC;
        }
    }
    else
    {
        nResId = STR_ACCESS_PARAGRAPH_DESC;
    }

    return GetResource( nResId, &sArg1, pArg2 );
}

Locale SAL_CALL SwAccessibleParagraph::getLocale (void)
        throw (::drafts::com::sun::star::accessibility::IllegalAccessibleComponentStateException, ::com::sun::star::uno::RuntimeException)
{
    vos::OGuard aGuard(Application::GetSolarMutex());

    SwTxtFrm *pTxtFrm = PTR_CAST( SwTxtFrm, GetFrm() );
    if( !pTxtFrm )
    {
        THROW_RUNTIME_EXCEPTION( XAccessibleContext, "internal error (no text frame)" );
    }

    const SwTxtNode *pTxtNd = pTxtFrm->GetTxtNode();
    Locale aLoc( pBreakIt->GetLocale( pTxtNd->GetLang( 0 ) ) );

    return aLoc;
}

OUString SAL_CALL SwAccessibleParagraph::getImplementationName()
        throw( RuntimeException )
{
    return OUString(RTL_CONSTASCII_USTRINGPARAM(sImplementationName));
}

sal_Bool SAL_CALL SwAccessibleParagraph::supportsService(
        const ::rtl::OUString& sTestServiceName)
    throw (::com::sun::star::uno::RuntimeException)
{
    return sTestServiceName.equalsAsciiL( sServiceName, sizeof(sServiceName)-1 );
}

Sequence< OUString > SAL_CALL SwAccessibleParagraph::getSupportedServiceNames()
        throw( ::com::sun::star::uno::RuntimeException )
{
    Sequence< OUString > aRet(1);
    OUString* pArray = aRet.getArray();
    pArray[0] = OUString( RTL_CONSTASCII_USTRINGPARAM(sServiceName) );
    return aRet;
}