libreoffice/svx/source/unodraw/gluepts.cxx

/*************************************************************************
 *
 *  $RCSfile: gluepts.cxx,v $
 *
 *  $Revision: 1.10 $
 *
 *  last change: $Author: cl $ $Date: 2002-11-04 08:29:17 $
 *
 *  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): _______________________________________
 *
 *
 ************************************************************************/

#ifndef _COM_SUN_STAR_CONTAINER_XIDENTIFIERCONTAINER_HPP_
#include <com/sun/star/container/XIdentifierContainer.hpp>
#endif

#ifndef _COM_SUN_STAR_CONTAINER_XINDEXCONTAINER_HPP_
#include <com/sun/star/container/XIndexContainer.hpp>
#endif
#ifndef _COM_SUN_STAR_DRAWING_GLUEPOINT2_HDL_
#include <com/sun/star/drawing/GluePoint2.hpp>
#endif

#include <cppuhelper/implbase2.hxx>

#include "svdmodel.hxx"
#include "svdobj.hxx"
#include "svdglue.hxx"
#include "svdpage.hxx"

using namespace ::com::sun::star;
using namespace ::rtl;
using namespace ::cppu;

const USHORT NON_USER_DEFINED_GLUE_POINTS = 4;

class SvxUnoGluePointAccess : public WeakImplHelper2< container::XIndexContainer, container::XIdentifierContainer >,
                                public SfxListener
{
private:
    SdrObject*  mpObject;

public:
    SvxUnoGluePointAccess( SdrObject* pObject ) throw();
    virtual ~SvxUnoGluePointAccess() throw();

    // SfxListener
    virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) throw ();

    // XIdentifierContainer
    virtual sal_Int32 SAL_CALL insert( const uno::Any& aElement ) throw (lang::IllegalArgumentException, lang::WrappedTargetException, uno::RuntimeException);
    virtual void SAL_CALL removeByIdentifier( sal_Int32 Identifier ) throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException);

    // XIdentifierReplace
    virtual void SAL_CALL replaceByIdentifer( sal_Int32 Identifier, const uno::Any& aElement ) throw (lang::IllegalArgumentException, container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException);

    // XIdentifierReplace
    virtual uno::Any SAL_CALL getByIdentifier( sal_Int32 Identifier ) throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException);
    virtual uno::Sequence< sal_Int32 > SAL_CALL getIdentifiers(  ) throw (uno::RuntimeException);

    /* deprecated */
    // XIndexContainer
    virtual void SAL_CALL insertByIndex( sal_Int32 Index, const uno::Any& Element ) throw(lang::IllegalArgumentException, lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException);
    virtual void SAL_CALL removeByIndex( sal_Int32 Index ) throw(lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException);

    /* deprecated */
    // XIndexReplace
    virtual void SAL_CALL replaceByIndex( sal_Int32 Index, const uno::Any& Element ) throw(lang::IllegalArgumentException, lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException);

    /* deprecated */
    // XIndexAccess
    virtual sal_Int32 SAL_CALL getCount(  ) throw(uno::RuntimeException);
    virtual uno::Any SAL_CALL getByIndex( sal_Int32 Index ) throw(lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException);

    // XElementAccess
    virtual uno::Type SAL_CALL getElementType(  ) throw( uno::RuntimeException);
    virtual sal_Bool SAL_CALL hasElements(  ) throw( uno::RuntimeException);
};

static void convert( const SdrGluePoint& rSdrGlue, drawing::GluePoint2& rUnoGlue ) throw()
{
    rUnoGlue.Position.X = rSdrGlue.GetPos().X();
    rUnoGlue.Position.Y = rSdrGlue.GetPos().Y();
    rUnoGlue.IsRelative = rSdrGlue.IsPercent();

    switch( rSdrGlue.GetAlign() )
    {
    case SDRVERTALIGN_TOP|SDRHORZALIGN_LEFT:
        rUnoGlue.PositionAlignment = drawing::Alignment_TOP_LEFT;
        break;
    case SDRHORZALIGN_CENTER|SDRVERTALIGN_TOP:
        rUnoGlue.PositionAlignment = drawing::Alignment_TOP;
        break;
    case SDRVERTALIGN_TOP|SDRHORZALIGN_RIGHT:
        rUnoGlue.PositionAlignment = drawing::Alignment_TOP_RIGHT;
        break;
    case SDRHORZALIGN_CENTER|SDRVERTALIGN_CENTER:
        rUnoGlue.PositionAlignment = drawing::Alignment_CENTER;
        break;
    case SDRHORZALIGN_RIGHT|SDRVERTALIGN_CENTER:
        rUnoGlue.PositionAlignment = drawing::Alignment_RIGHT;
        break;
    case SDRHORZALIGN_LEFT|SDRVERTALIGN_BOTTOM:
        rUnoGlue.PositionAlignment = drawing::Alignment_BOTTOM_LEFT;
        break;
    case SDRHORZALIGN_CENTER|SDRVERTALIGN_BOTTOM:
        rUnoGlue.PositionAlignment = drawing::Alignment_BOTTOM;
        break;
    case SDRHORZALIGN_RIGHT|SDRVERTALIGN_BOTTOM:
        rUnoGlue.PositionAlignment = drawing::Alignment_BOTTOM_RIGHT;
        break;
//  case SDRHORZALIGN_LEFT:
    default:
        rUnoGlue.PositionAlignment = drawing::Alignment_LEFT;
        break;
    }

    switch( rSdrGlue.GetEscDir() )
    {
    case SDRESC_LEFT:
        rUnoGlue.Escape = drawing::EscapeDirection_LEFT;
        break;
    case SDRESC_RIGHT:
        rUnoGlue.Escape = drawing::EscapeDirection_RIGHT;
        break;
    case SDRESC_TOP:
        rUnoGlue.Escape = drawing::EscapeDirection_UP;
        break;
    case SDRESC_BOTTOM:
        rUnoGlue.Escape = drawing::EscapeDirection_DOWN;
        break;
    case SDRESC_HORZ:
        rUnoGlue.Escape = drawing::EscapeDirection_HORIZONTAL;
        break;
    case SDRESC_VERT:
        rUnoGlue.Escape = drawing::EscapeDirection_VERTICAL;
        break;
//          case SDRESC_SMART:
    default:
        rUnoGlue.Escape = drawing::EscapeDirection_SMART;
        break;
    }
}

static void convert( const drawing::GluePoint2& rUnoGlue, SdrGluePoint& rSdrGlue ) throw()
{
    rSdrGlue.SetPos( Point( rUnoGlue.Position.X, rUnoGlue.Position.Y ) );
    rSdrGlue.SetPercent( rUnoGlue.IsRelative );

    switch( rUnoGlue.PositionAlignment )
    {
    case drawing::Alignment_TOP_LEFT:
        rSdrGlue.SetAlign( SDRVERTALIGN_TOP|SDRHORZALIGN_LEFT );
        break;
    case drawing::Alignment_TOP:
        rSdrGlue.SetAlign( SDRHORZALIGN_CENTER|SDRVERTALIGN_TOP );
        break;
    case drawing::Alignment_TOP_RIGHT:
        rSdrGlue.SetAlign( SDRVERTALIGN_TOP|SDRHORZALIGN_RIGHT );
        break;
    case drawing::Alignment_CENTER:
        rSdrGlue.SetAlign( SDRHORZALIGN_CENTER|SDRVERTALIGN_CENTER );
        break;
    case drawing::Alignment_RIGHT:
        rSdrGlue.SetAlign( SDRHORZALIGN_RIGHT|SDRVERTALIGN_CENTER );
        break;
    case drawing::Alignment_BOTTOM_LEFT:
        rSdrGlue.SetAlign( SDRHORZALIGN_LEFT|SDRVERTALIGN_BOTTOM );
        break;
    case drawing::Alignment_BOTTOM:
        rSdrGlue.SetAlign( SDRHORZALIGN_CENTER|SDRVERTALIGN_BOTTOM );
        break;
    case drawing::Alignment_BOTTOM_RIGHT:
        rSdrGlue.SetAlign( SDRHORZALIGN_RIGHT|SDRVERTALIGN_BOTTOM );
        break;
//  case SDRHORZALIGN_LEFT:
    default:
        rSdrGlue.SetAlign( SDRHORZALIGN_LEFT );
        break;
    }
    switch( rUnoGlue.Escape )
    {
    case drawing::EscapeDirection_LEFT:
        rSdrGlue.SetEscDir(SDRESC_LEFT);
        break;
    case drawing::EscapeDirection_RIGHT:
        rSdrGlue.SetEscDir(SDRESC_RIGHT);
        break;
    case drawing::EscapeDirection_UP:
        rSdrGlue.SetEscDir(SDRESC_TOP);
        break;
    case drawing::EscapeDirection_DOWN:
        rSdrGlue.SetEscDir(SDRESC_BOTTOM);
        break;
    case drawing::EscapeDirection_HORIZONTAL:
        rSdrGlue.SetEscDir(SDRESC_HORZ);
        break;
    case drawing::EscapeDirection_VERTICAL:
        rSdrGlue.SetEscDir(SDRESC_VERT);
        break;
//  case drawing::EscapeDirection_SMART:
    default:
        rSdrGlue.SetEscDir(SDRESC_SMART);
        break;
    }
}

SvxUnoGluePointAccess::SvxUnoGluePointAccess( SdrObject* pObject ) throw()
: mpObject( pObject )
{
    StartListening( *mpObject->GetModel() );

}

SvxUnoGluePointAccess::~SvxUnoGluePointAccess() throw()
{
    if( mpObject && mpObject->GetModel())
        EndListening( *mpObject->GetModel() );
}

void SvxUnoGluePointAccess::Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) throw()
{
    const SdrHint* pSdrHint = PTR_CAST( SdrHint, &rHint );

    if( pSdrHint && mpObject)
    {
        if( pSdrHint->GetKind() == HINT_OBJREMOVED )
        {
            if( mpObject == pSdrHint->GetObject() )
                mpObject = NULL;
        }
        else if( pSdrHint->GetKind() == HINT_MODELCLEARED )
        {
            mpObject = NULL;
        }
        else if( pSdrHint->GetKind() == HINT_OBJLISTCLEAR )
        {
            SdrObjList* pObjList = mpObject ? mpObject->GetObjList() : NULL;
            while( pObjList )
            {
                if( pSdrHint->GetObjList() == pObjList )
                {
                    mpObject = NULL;
                    break;
                }

                pObjList = pObjList->GetUpList();
            }
        }
    }
}

// XIdentifierContainer
sal_Int32 SAL_CALL SvxUnoGluePointAccess::insert( const uno::Any& aElement ) throw (lang::IllegalArgumentException, lang::WrappedTargetException, uno::RuntimeException)
{
    if( mpObject )
    {
        SdrGluePointList* pList = mpObject->ForceGluePointList();
        if( pList )
        {
            // second, insert the new glue point
            drawing::GluePoint2 aUnoGlue;

            if( aElement >>= aUnoGlue )
            {
                SdrGluePoint aSdrGlue;
                convert( aUnoGlue, aSdrGlue );
                USHORT nId = pList->Insert( aSdrGlue );
                mpObject->SendRepaintBroadcast();

                return (sal_Int32)((*pList)[nId].GetId() + NON_USER_DEFINED_GLUE_POINTS);
            }

            throw lang::IllegalArgumentException();
        }
    }

    return -1;
}

void SAL_CALL SvxUnoGluePointAccess::removeByIdentifier( sal_Int32 Identifier ) throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException)
{
    if( mpObject && ( Identifier >= NON_USER_DEFINED_GLUE_POINTS ))
    {
        const USHORT nId = (USHORT)(Identifier - NON_USER_DEFINED_GLUE_POINTS);

        SdrGluePointList* pList = mpObject->GetGluePointList();
        const USHORT nCount = pList ? pList->GetCount() : 0;
        USHORT i;

        for( i = 0; i < nCount; i++ )
        {
            if( (*pList)[i].GetId() == nId )
            {
                pList->Delete( i );
                mpObject->SendRepaintBroadcast();
                return;
            }
        }
    }

    throw container::NoSuchElementException();
}

// XIdentifierReplace
void SAL_CALL SvxUnoGluePointAccess::replaceByIdentifer( sal_Int32 Identifier, const uno::Any& aElement ) throw (lang::IllegalArgumentException, container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException)
{
    if( mpObject && mpObject->IsNode() )
    {
        struct drawing::GluePoint2 aGluePoint;
        if( (Identifier < NON_USER_DEFINED_GLUE_POINTS) || !(aElement >>= aGluePoint))
            throw lang::IllegalArgumentException();

        const USHORT nId = (USHORT)Identifier - NON_USER_DEFINED_GLUE_POINTS;

        SdrGluePointList* pList = mpObject->GetGluePointList();
        const USHORT nCount = pList ? pList->GetCount() : 0;
        USHORT i;
        for( i = 0; i < nCount; i++ )
        {
            if( (*pList)[i].GetId() == nId )
            {
                // change the glue point
                SdrGluePoint& rTempPoint = (*pList)[i];
                convert( aGluePoint, rTempPoint );
                mpObject->SendRepaintBroadcast();
                return;
            }
        }

        throw container::NoSuchElementException();
    }
}

// XIdentifierAccess
uno::Any SAL_CALL SvxUnoGluePointAccess::getByIdentifier( sal_Int32 Identifier ) throw (container::NoSuchElementException, lang::WrappedTargetException, uno::RuntimeException)
{
    if( mpObject && mpObject->IsNode() )
    {
        struct drawing::GluePoint2 aGluePoint;

        if( Identifier < NON_USER_DEFINED_GLUE_POINTS ) // default glue point?
        {
            SdrGluePoint aTempPoint = mpObject->GetVertexGluePoint( (USHORT)Identifier );
            aGluePoint.IsUserDefined = sal_False;
            convert( aTempPoint, aGluePoint );
            return uno::makeAny( aGluePoint );
        }
        else
        {
            const USHORT nId = (USHORT)Identifier - NON_USER_DEFINED_GLUE_POINTS;

            const SdrGluePointList* pList = mpObject->GetGluePointList();
            const USHORT nCount = pList ? pList->GetCount() : 0;
            for( USHORT i = 0; i < nCount; i++ )
            {
                const SdrGluePoint& rTempPoint = (*pList)[i];
                if( rTempPoint.GetId() == nId )
                {
                    aGluePoint.IsUserDefined = sal_True;
                    convert( rTempPoint, aGluePoint );
                    return uno::makeAny( aGluePoint );
                }
            }
        }
    }

    throw lang::IndexOutOfBoundsException();
}

uno::Sequence< sal_Int32 > SAL_CALL SvxUnoGluePointAccess::getIdentifiers() throw (uno::RuntimeException)
{
    const SdrGluePointList* pList = mpObject->GetGluePointList();
    const USHORT nCount = pList ? pList->GetCount() : 0;

    USHORT i;

    uno::Sequence< sal_Int32 > aIdSequence( nCount + NON_USER_DEFINED_GLUE_POINTS );
    sal_Int32 *pIdentifier = aIdSequence.getArray();

    for( i = 0; i < NON_USER_DEFINED_GLUE_POINTS; i++ )
        *pIdentifier++ = (sal_Int32)i;

    for( i = 0; i < nCount; i++ )
        *pIdentifier++ = (sal_Int32) (*pList)[i].GetId() + NON_USER_DEFINED_GLUE_POINTS;

    return aIdSequence;
}

/* deprecated */

// XIndexContainer
void SAL_CALL SvxUnoGluePointAccess::insertByIndex( sal_Int32 Index, const uno::Any& Element )
    throw(lang::IllegalArgumentException, lang::IndexOutOfBoundsException,
            lang::WrappedTargetException, uno::RuntimeException)
{
    if( mpObject )
    {
        SdrGluePointList* pList = mpObject->ForceGluePointList();
        if( pList )
        {
            SdrGluePoint aSdrGlue;
            drawing::GluePoint2 aUnoGlue;

            if( Element >>= aUnoGlue )
            {
                convert( aUnoGlue, aSdrGlue );
                pList->Insert( aSdrGlue );
                mpObject->SendRepaintBroadcast();
                return;
            }

            throw lang::IllegalArgumentException();
        }
    }

    throw lang::IndexOutOfBoundsException();
}

void SAL_CALL SvxUnoGluePointAccess::removeByIndex( sal_Int32 Index )
    throw(lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException)
{
    if( mpObject )
    {
        SdrGluePointList* pList = mpObject->ForceGluePointList();
        if( pList )
        {
            Index -= 4;
            if( Index >= 0 && Index < pList->GetCount() )
            {
                pList->Delete( (USHORT)Index );
                mpObject->SendRepaintBroadcast();
                return;
            }
        }
    }

    throw lang::IndexOutOfBoundsException();
}

// XIndexReplace
void SAL_CALL SvxUnoGluePointAccess::replaceByIndex( sal_Int32 Index, const uno::Any& Element )
    throw(lang::IllegalArgumentException, lang::IndexOutOfBoundsException, lang::WrappedTargetException,
    uno::RuntimeException)
{
    drawing::GluePoint2 aUnoGlue;
    if(!(Element >>= aUnoGlue))
        throw lang::IllegalArgumentException();

    Index -= 4;
    if( mpObject && Index >= 0 )
    {
        SdrGluePointList* pList = mpObject->GetGluePointList();
        if( pList && Index < pList->GetCount() )
        {
            SdrGluePoint& rGlue = (*pList)[(USHORT)Index];
            convert( aUnoGlue, rGlue );
            mpObject->SendRepaintBroadcast();
        }
    }

    throw lang::IndexOutOfBoundsException();
}

// XIndexAccess
sal_Int32 SAL_CALL SvxUnoGluePointAccess::getCount()
    throw(uno::RuntimeException)
{
    sal_Int32 nCount = 0;
    if( mpObject )
    {
        // each node has a default of 4 glue points
        // and any number of user defined glue points
        if( mpObject->IsNode() )
        {
            nCount += 4;

            const SdrGluePointList* pList = mpObject->GetGluePointList();
            if( pList )
                nCount += pList->GetCount();
        }
    }

    return nCount;
}

uno::Any SAL_CALL SvxUnoGluePointAccess::getByIndex( sal_Int32 Index )
    throw(lang::IndexOutOfBoundsException, lang::WrappedTargetException, uno::RuntimeException)
{
    if( Index >= 0 && mpObject && mpObject->IsNode() )
    {
        struct drawing::GluePoint2 aGluePoint;

        if( Index < 4 ) // default glue point?
        {
            SdrGluePoint aTempPoint = mpObject->GetVertexGluePoint( (USHORT)Index );
            aGluePoint.IsUserDefined = sal_False;
            convert( aTempPoint, aGluePoint );
            uno::Any aAny;
            aAny <<= aGluePoint;
            return aAny;
        }
        else
        {
            Index -= 4;
            const SdrGluePointList* pList = mpObject->GetGluePointList();
            if( pList && Index < pList->GetCount() )
            {
                const SdrGluePoint& rTempPoint = (*pList)[(USHORT)Index];
                aGluePoint.IsUserDefined = sal_True;
                convert( rTempPoint, aGluePoint );
                uno::Any aAny;
                aAny <<= aGluePoint;
                return aAny;
            }
        }
    }

    throw lang::IndexOutOfBoundsException();
}

// XElementAccess
uno::Type SAL_CALL SvxUnoGluePointAccess::getElementType()
    throw( uno::RuntimeException)
{
    return ::getCppuType((const struct drawing::GluePoint2*)0);
}

sal_Bool SAL_CALL SvxUnoGluePointAccess::hasElements()
    throw( uno::RuntimeException)
{
    return mpObject && mpObject->IsNode();
}

/**
 * Create a SvxUnoGluePointAccess
 */
uno::Reference< uno::XInterface > SAL_CALL SvxUnoGluePointAccess_createInstance( SdrObject* pObject )
{
    return *new SvxUnoGluePointAccess(pObject);
}