xref: /AOO41X/main/svtools/source/misc/imap.cxx (revision cdf0e10c4e3984b49a9502b011690b615761d4a3)

/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svtools.hxx"

#include <tools/urlobj.hxx>
#include <vcl/svapp.hxx>
#include <vcl/mapmod.hxx>
#include <vcl/window.hxx>

#include "svl/urihelper.hxx"
#include <svtools/imap.hxx>
#include <svtools/imapobj.hxx>
#include <svtools/imapcirc.hxx>
#include <svtools/imaprect.hxx>
#include <svtools/imappoly.hxx>

#include <string.h>
#include <math.h>

DBG_NAME( ImageMap )


#define SCALEPOINT(aPT,aFracX,aFracY) (aPT).X()=((aPT).X()*(aFracX).GetNumerator())/(aFracX).GetDenominator();	\
									  (aPT).Y()=((aPT).Y()*(aFracY).GetNumerator())/(aFracY).GetDenominator();


/******************************************************************************/

sal_uInt16 IMapObject::nActualTextEncoding = (sal_uInt16) RTL_TEXTENCODING_DONTKNOW;

/******************************************************************************/


IMapObject::IMapObject()
    : bActive( false )
    , nReadVersion( 0 )
{
}

IMapObject::IMapObject( const String& rURL,	const String& rAltText, const String& rDesc,
						const String& rTarget, const String& rName, sal_Bool bURLActive )
: aURL( rURL )
, aAltText( rAltText )
, aDesc( rDesc )
, aTarget( rTarget )
, aName( rName )
, bActive( bURLActive )
, nReadVersion( 0 )
{
}


/******************************************************************************
|*
|* Freigabe des internen Speichers
|*
\******************************************************************************/

sal_uInt16 IMapObject::GetVersion() const
{
	return IMAP_OBJ_VERSION;
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapObject::Write( SvStream& rOStm, const String& rBaseURL ) const
{
	IMapCompat*				pCompat;
	const rtl_TextEncoding	eEncoding = gsl_getSystemTextEncoding();

    rOStm << GetType();
    rOStm << GetVersion();
	rOStm << ( (sal_uInt16) eEncoding );

    const ByteString aRelURL = ByteString( String(URIHelper::simpleNormalizedMakeRelative( rBaseURL, aURL )), eEncoding );
	rOStm.WriteByteString( aRelURL );
    rOStm.WriteByteString( ByteString( aAltText, eEncoding ) );
    rOStm << bActive;
    rOStm.WriteByteString( ByteString( aTarget, eEncoding ) );

	pCompat = new IMapCompat( rOStm, STREAM_WRITE );

    WriteIMapObject( rOStm );
    aEventList.Write( rOStm );                                 // V4
    rOStm.WriteByteString( ByteString( aName, eEncoding ) );   // V5

	delete pCompat;
}


/******************************************************************************
|*
|* 	Binaer-Import
|*
\******************************************************************************/

void IMapObject::Read( SvStream& rIStm, const String& rBaseURL )
{
	IMapCompat*			pCompat;
	rtl_TextEncoding	nTextEncoding;
	ByteString			aString;

	// Typ und Version ueberlesen wir
	rIStm.SeekRel( 2 );
    rIStm >> nReadVersion;
	rIStm >> nTextEncoding;
    rIStm.ReadByteString( aString ); aURL = String( aString.GetBuffer(), nTextEncoding );
    rIStm.ReadByteString( aString ); aAltText = String( aString.GetBuffer(), nTextEncoding );
    rIStm >> bActive;
    rIStm.ReadByteString( aString ); aTarget = String( aString.GetBuffer(), nTextEncoding );

	// URL absolut machen
    aURL = URIHelper::SmartRel2Abs( INetURLObject(rBaseURL), aURL, URIHelper::GetMaybeFileHdl(), true, false, INetURLObject::WAS_ENCODED, INetURLObject::DECODE_UNAMBIGUOUS );
	pCompat = new IMapCompat( rIStm, STREAM_READ );

    ReadIMapObject( rIStm );

	// ab Version 4 lesen wir eine EventListe
    if ( nReadVersion >= 0x0004 )
	{
        aEventList.Read(rIStm);

		// ab Version 5 kann ein Objektname vorhanden sein
        if ( nReadVersion >= 0x0005 )
		{
            rIStm.ReadByteString( aString ); aName = String( aString.GetBuffer(), nTextEncoding );
		}
	}

	delete pCompat;
}


/******************************************************************************
|*
|* Konvertierung der logischen Koordianten in Pixel
|*
\******************************************************************************/

Point IMapObject::GetPixelPoint( const Point& rLogPoint )
{
	return Application::GetDefaultDevice()->LogicToPixel( rLogPoint, MapMode( MAP_100TH_MM ) );
}


/******************************************************************************
|*
|* Konvertierung der logischen Koordianten in Pixel
|*
\******************************************************************************/

Point IMapObject::GetLogPoint( const Point& rPixelPoint )
{
	return Application::GetDefaultDevice()->PixelToLogic( rPixelPoint, MapMode( MAP_100TH_MM ) );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

sal_Bool IMapObject::IsEqual( const IMapObject& rEqObj )
{
	return ( ( aURL == rEqObj.aURL ) &&
			 ( aAltText == rEqObj.aAltText ) &&
			 ( aDesc == rEqObj.aDesc ) &&
			 ( aTarget == rEqObj.aTarget ) &&
			 ( aName == rEqObj.aName ) &&
			 ( bActive == rEqObj.bActive ) );
}


/******************************************************************************/
/******************************************************************************/
/******************************************************************************/

IMapRectangleObject::IMapRectangleObject( const Rectangle& rRect,
										  const String& rURL,
										  const String& rAltText,
										  const String& rDesc,
										  const String&	rTarget,
										  const String& rName,
										  sal_Bool bURLActive,
										  sal_Bool bPixelCoords ) :
			IMapObject	( rURL, rAltText, rDesc, rTarget, rName, bURLActive )
{
	ImpConstruct( rRect, bPixelCoords );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapRectangleObject::ImpConstruct( const Rectangle& rRect, sal_Bool bPixel )
{
	if ( bPixel )
		aRect = Application::GetDefaultDevice()->PixelToLogic( rRect, MapMode( MAP_100TH_MM ) );
	else
		aRect = rRect;
}


/******************************************************************************
|*
|* Binaer-Export
|*
\******************************************************************************/

void IMapRectangleObject::WriteIMapObject( SvStream& rOStm ) const
{
	rOStm << aRect;
}


/******************************************************************************
|*
|* Binaer-Import
|*
\******************************************************************************/

void IMapRectangleObject::ReadIMapObject( SvStream& rIStm )
{
	rIStm >> aRect;
}


/******************************************************************************
|*
|* Typ-Rueckgabe
|*
\******************************************************************************/

sal_uInt16 IMapRectangleObject::GetType() const
{
	return IMAP_OBJ_RECTANGLE;
}


/******************************************************************************
|*
|* Hit-Test
|*
\******************************************************************************/

sal_Bool IMapRectangleObject::IsHit( const Point& rPoint ) const
{
	return aRect.IsInside( rPoint );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

Rectangle IMapRectangleObject::GetRectangle( sal_Bool bPixelCoords ) const
{
	Rectangle	aNewRect;

	if ( bPixelCoords )
		aNewRect = Application::GetDefaultDevice()->LogicToPixel( aRect, MapMode( MAP_100TH_MM ) );
	else
		aNewRect = aRect;

	return aNewRect;
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapRectangleObject::Scale( const Fraction& rFracX, const Fraction& rFracY )
{
	Point	aTL( aRect.TopLeft() );
	Point	aBR( aRect.BottomRight() );

	if ( rFracX.GetDenominator() && rFracY.GetDenominator() )
	{
		SCALEPOINT( aTL, rFracX, rFracY );
		SCALEPOINT( aBR, rFracX, rFracY );
	}

	aRect = Rectangle( aTL, aBR );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

sal_Bool IMapRectangleObject::IsEqual( const IMapRectangleObject& rEqObj )
{
	return ( IMapObject::IsEqual( rEqObj ) && ( aRect == rEqObj.aRect ) );
}


/******************************************************************************/
/******************************************************************************/
/******************************************************************************/

IMapCircleObject::IMapCircleObject( const Point& rCenter, sal_uLong nCircleRadius,
									const String& rURL,
									const String& rAltText,
									const String& rDesc,
									const String& rTarget,
									const String& rName,
									sal_Bool bURLActive,
									sal_Bool bPixelCoords ) :
			IMapObject	( rURL, rAltText, rDesc, rTarget, rName, bURLActive )
{
	ImpConstruct( rCenter, nCircleRadius, bPixelCoords );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapCircleObject::ImpConstruct( const Point& rCenter, sal_uLong nRad, sal_Bool bPixel )
{
	if ( bPixel )
	{
		MapMode	aMap100( MAP_100TH_MM );

		aCenter = Application::GetDefaultDevice()->PixelToLogic( rCenter, aMap100 );
		nRadius = Application::GetDefaultDevice()->PixelToLogic( Size( nRad, 0 ), aMap100 ).Width();
	}
	else
	{
		aCenter = rCenter;
		nRadius = nRad;
	}
}


/******************************************************************************
|*
|* Binaer-Export
|*
\******************************************************************************/

void IMapCircleObject::WriteIMapObject( SvStream& rOStm ) const
{
	sal_uInt32 nTmp = nRadius;

	rOStm << aCenter;
	rOStm << nTmp;
}


/******************************************************************************
|*
|* Binaer-Import
|*
\******************************************************************************/

void IMapCircleObject::ReadIMapObject( SvStream& rIStm )
{
	sal_uInt32 nTmp;

	rIStm >> aCenter;
	rIStm >> nTmp;

	nRadius = nTmp;
}


/******************************************************************************
|*
|* Typ-Rueckgabe
|*
\******************************************************************************/

sal_uInt16 IMapCircleObject::GetType() const
{
	return IMAP_OBJ_CIRCLE;
}


/******************************************************************************
|*
|* Hit-Test
|*
\******************************************************************************/

sal_Bool IMapCircleObject::IsHit( const Point& rPoint ) const
{
	const Point	aPoint( aCenter - rPoint );
	sal_Bool		bRet = sal_False;

	if ( (sal_uLong) sqrt( (double) aPoint.X() * aPoint.X() +
					   aPoint.Y() * aPoint.Y() ) <= nRadius )
	{
		bRet = sal_True;
	}

	return bRet;
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

Point IMapCircleObject::GetCenter( sal_Bool bPixelCoords ) const
{
	Point aNewPoint;

	if ( bPixelCoords )
		aNewPoint = Application::GetDefaultDevice()->LogicToPixel( aCenter, MapMode( MAP_100TH_MM ) );
	else
		aNewPoint = aCenter;

	return aNewPoint;
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

sal_uLong IMapCircleObject::GetRadius( sal_Bool bPixelCoords ) const
{
	sal_uLong nNewRadius;

	if ( bPixelCoords )
		nNewRadius = Application::GetDefaultDevice()->LogicToPixel( Size( nRadius, 0 ), MapMode( MAP_100TH_MM ) ).Width();
	else
		nNewRadius = nRadius;

	return nNewRadius;
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

Rectangle IMapCircleObject::GetBoundRect() const
{
	long nWidth = nRadius << 1;

	return Rectangle( Point(  aCenter.X() - nRadius, aCenter.Y() - nRadius ),
					  Size( nWidth, nWidth ) );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapCircleObject::Scale( const Fraction& rFracX, const Fraction& rFracY )
{
	Fraction aAverage( rFracX );

	aAverage += rFracY;
	aAverage *= Fraction( 1, 2 );

	if ( rFracX.GetDenominator() && rFracY.GetDenominator() )
	{
		SCALEPOINT( aCenter, rFracX, rFracY );
	}

	nRadius = ( nRadius * aAverage.GetNumerator() ) / aAverage.GetDenominator();
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

sal_Bool IMapCircleObject::IsEqual( const IMapCircleObject& rEqObj )
{
	return ( IMapObject::IsEqual( rEqObj ) &&
			 ( aCenter == rEqObj.aCenter ) &&
			 ( nRadius == rEqObj.nRadius ) );
}


/******************************************************************************/
/******************************************************************************/
/******************************************************************************/
IMapPolygonObject::IMapPolygonObject( const Polygon& rPoly,
									  const String& rURL,
									  const String& rAltText,
									  const String& rDesc,
									  const String& rTarget,
									  const String& rName,
									  sal_Bool bURLActive,
									  sal_Bool bPixelCoords ) :
			IMapObject	( rURL, rAltText, rDesc, rTarget, rName, bURLActive ),
			bEllipse	( sal_False )
{
	ImpConstruct( rPoly, bPixelCoords );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapPolygonObject::ImpConstruct( const Polygon& rPoly, sal_Bool bPixel )
{
	if ( bPixel )
		aPoly = Application::GetDefaultDevice()->PixelToLogic( rPoly, MapMode( MAP_100TH_MM ) );
	else
		aPoly = rPoly;
}


/******************************************************************************
|*
|* Binaer-Export
|*
\******************************************************************************/

void IMapPolygonObject::WriteIMapObject( SvStream& rOStm ) const
{
	rOStm << aPoly;
	rOStm << bEllipse;	// >= Version 2
	rOStm << aEllipse;	// >= Version 2
}


/******************************************************************************
|*
|* Binaer-Import
|*
\******************************************************************************/

void IMapPolygonObject::ReadIMapObject( SvStream& rIStm )
{
	rIStm >> aPoly;

	// Version >= 2 hat zusaetzlich Ellipsen-Information
	if ( nReadVersion >= 2 )
	{
		rIStm >> bEllipse;
		rIStm >> aEllipse;
	}
}


/******************************************************************************
|*
|* Typ-Rueckgabe
|*
\******************************************************************************/

sal_uInt16 IMapPolygonObject::GetType() const
{
	return IMAP_OBJ_POLYGON;
}


/******************************************************************************
|*
|* Hit-Test
|*
\******************************************************************************/

sal_Bool IMapPolygonObject::IsHit( const Point& rPoint ) const
{
	return aPoly.IsInside( rPoint );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

Polygon IMapPolygonObject::GetPolygon( sal_Bool bPixelCoords ) const
{
	Polygon	aNewPoly;

	if ( bPixelCoords )
		aNewPoly = Application::GetDefaultDevice()->LogicToPixel( aPoly, MapMode( MAP_100TH_MM ) );
	else
		aNewPoly = aPoly;

	return aNewPoly;
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapPolygonObject::SetExtraEllipse( const Rectangle& rEllipse )
{
	if ( aPoly.GetSize() )
	{
		bEllipse = sal_True;
		aEllipse = rEllipse;
	}
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void IMapPolygonObject::Scale( const Fraction& rFracX, const Fraction& rFracY )
{
	sal_uInt16 nCount = aPoly.GetSize();

	for ( sal_uInt16 i = 0; i < nCount; i++ )
	{
		Point aScaledPt( aPoly[ i ] );

		if ( rFracX.GetDenominator() && rFracY.GetDenominator() )
		{
			SCALEPOINT( aScaledPt, rFracX, rFracY );
		}

		aPoly[ i ] = aScaledPt;
	}

	if ( bEllipse )
	{
		Point	aTL( aEllipse.TopLeft() );
		Point	aBR( aEllipse.BottomRight() );

		if ( rFracX.GetDenominator() && rFracY.GetDenominator() )
		{
			SCALEPOINT( aTL, rFracX, rFracY );
			SCALEPOINT( aBR, rFracX, rFracY );
		}

		aEllipse = Rectangle( aTL, aBR );
	}
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

sal_Bool IMapPolygonObject::IsEqual( const IMapPolygonObject& rEqObj )
{
	sal_Bool bRet = sal_False;

	if ( IMapObject::IsEqual( rEqObj ) )
	{
		const Polygon&	rEqPoly = rEqObj.aPoly;
		const sal_uInt16	nCount = aPoly.GetSize();
		const sal_uInt16	nEqCount = rEqPoly.GetSize();
		sal_Bool			bDifferent = sal_False;

		if ( nCount == nEqCount )
		{
			for ( sal_uInt16 i = 0; i < nCount; i++ )
			{
				if ( aPoly[ i ] != rEqPoly[ i ] )
				{
					bDifferent = sal_True;
					break;
				}
			}

			if ( !bDifferent )
				bRet = sal_True;
		}
	}

	return bRet;
}


/******************************************************************************/
/******************************************************************************/
/******************************************************************************/


/******************************************************************************
|*
|* Ctor
|*
\******************************************************************************/

ImageMap::ImageMap( const String& rName ) :
			aName	( rName )
{
}


/******************************************************************************
|*
|* Copy-Ctor
|*
\******************************************************************************/

ImageMap::ImageMap( const ImageMap& rImageMap )
{
	DBG_CTOR( ImageMap, NULL );

	sal_uInt16 nCount = rImageMap.GetIMapObjectCount();

	for ( sal_uInt16 i = 0; i < nCount; i++ )
	{
		IMapObject* pCopyObj = rImageMap.GetIMapObject( i );

		switch( pCopyObj->GetType() )
		{
			case( IMAP_OBJ_RECTANGLE ):
				maList.Insert( new IMapRectangleObject( *(IMapRectangleObject*) pCopyObj ), LIST_APPEND );
			break;

			case( IMAP_OBJ_CIRCLE ):
				maList.Insert( new IMapCircleObject( *(IMapCircleObject*) pCopyObj ), LIST_APPEND );
			break;

			case( IMAP_OBJ_POLYGON ):
				maList.Insert( new IMapPolygonObject( *(IMapPolygonObject*) pCopyObj ), LIST_APPEND );
			break;

			default:
			break;
		}
	}

	aName = rImageMap.aName;
}


/******************************************************************************
|*
|* Dtor
|*
\******************************************************************************/

ImageMap::~ImageMap()
{
	DBG_DTOR( ImageMap, NULL );

	ClearImageMap();
}


/******************************************************************************
|*
|* Freigabe des internen Speichers
|*
\******************************************************************************/

void ImageMap::ClearImageMap()
{
	IMapObject* pObj = (IMapObject*) maList.First();

	while ( pObj )
	{
		delete pObj;
		pObj = (IMapObject*) maList.Next();
	}

	maList.Clear();

	aName = String();
}


/******************************************************************************
|*
|* Zuweisungsoperator
|*
\******************************************************************************/

ImageMap& ImageMap::operator=( const ImageMap& rImageMap )
{
	sal_uInt16 nCount = rImageMap.GetIMapObjectCount();

	ClearImageMap();

	for ( sal_uInt16 i = 0; i < nCount; i++ )
	{
		IMapObject* pCopyObj = rImageMap.GetIMapObject( i );

		switch( pCopyObj->GetType() )
		{
			case( IMAP_OBJ_RECTANGLE ):
				maList.Insert( new IMapRectangleObject( *(IMapRectangleObject*) pCopyObj ), LIST_APPEND );
			break;

			case( IMAP_OBJ_CIRCLE ):
				maList.Insert( new IMapCircleObject( *(IMapCircleObject*) pCopyObj ), LIST_APPEND );
			break;

			case( IMAP_OBJ_POLYGON ):
				maList.Insert( new IMapPolygonObject( *(IMapPolygonObject*) pCopyObj ), LIST_APPEND );
			break;

			default:
			break;
		}
	}

	aName = rImageMap.aName;

	return *this;
}


/******************************************************************************
|*
|* Vergleichsoperator I
|*
\******************************************************************************/

sal_Bool ImageMap::operator==( const ImageMap& rImageMap )
{
	const sal_uInt16	nCount = (sal_uInt16) maList.Count();
	const sal_uInt16	nEqCount = rImageMap.GetIMapObjectCount();
	sal_Bool			bRet = sal_False;

	if ( nCount == nEqCount )
	{
		sal_Bool bDifferent = ( aName != rImageMap.aName );

		for ( sal_uInt16 i = 0; ( i < nCount ) && !bDifferent; i++ )
		{
			IMapObject* pObj = (IMapObject*) maList.GetObject( i );
			IMapObject* pEqObj = rImageMap.GetIMapObject( i );

			if ( pObj->GetType() == pEqObj->GetType() )
			{
				switch( pObj->GetType() )
				{
					case( IMAP_OBJ_RECTANGLE ):
					{
						if ( !( (IMapRectangleObject*) pObj )->IsEqual( *(IMapRectangleObject*) pEqObj ) )
							bDifferent = sal_True;
					}
					break;

					case( IMAP_OBJ_CIRCLE ):
					{
						if ( !( (IMapCircleObject*) pObj )->IsEqual( *(IMapCircleObject*) pEqObj ) )
							bDifferent = sal_True;
					}
					break;

					case( IMAP_OBJ_POLYGON ):
					{
						if ( !( (IMapPolygonObject*) pObj )->IsEqual( *(IMapPolygonObject*) pEqObj ) )
							bDifferent = sal_True;
					}
					break;

					default:
					break;
				}
			}
			else
				bDifferent = sal_True;
		}

		if ( !bDifferent )
			bRet = sal_True;
	}

	return bRet;
}


/******************************************************************************
|*
|* Vergleichsoperator II
|*
\******************************************************************************/

sal_Bool ImageMap::operator!=( const ImageMap& rImageMap )
{
	return !( *this == rImageMap );
}


/******************************************************************************
|*
|* Freigabe des internen Speichers
|*
\******************************************************************************/

sal_uInt16 ImageMap::GetVersion() const
{
	return IMAGE_MAP_VERSION;
}


/******************************************************************************
|*
|* Einfuegen eines neuen Objekts
|*
\******************************************************************************/

void ImageMap::InsertIMapObject( const IMapObject& rIMapObject )
{
	switch( rIMapObject.GetType() )
	{
		case( IMAP_OBJ_RECTANGLE ):
			maList.Insert( new IMapRectangleObject( (IMapRectangleObject&) rIMapObject ), LIST_APPEND );
		break;

		case( IMAP_OBJ_CIRCLE ):
			maList.Insert( new IMapCircleObject( (IMapCircleObject&) rIMapObject ), LIST_APPEND );
		break;

		case( IMAP_OBJ_POLYGON ):
			maList.Insert( new IMapPolygonObject( (IMapPolygonObject&) rIMapObject ), LIST_APPEND );
		break;

		default:
		break;
	}
}


/******************************************************************************
|*
|* Hit-Test
|*
\******************************************************************************/

IMapObject* ImageMap::GetHitIMapObject( const Size& rTotalSize,
										const Size& rDisplaySize,
										const Point& rRelHitPoint,
										sal_uLong nFlags )
{
	Point aRelPoint( rTotalSize.Width() * rRelHitPoint.X() / rDisplaySize.Width(),
					 rTotalSize.Height() * rRelHitPoint.Y() / rDisplaySize.Height() );

	// Falls Flags zur Spiegelung etc. angegeben sind, wird
	// der zu pruefende Punkt vor der Pruefung entspr. transformiert
	if ( nFlags )
	{
		if ( nFlags & IMAP_MIRROR_HORZ )
			aRelPoint.X() = rTotalSize.Width() - aRelPoint.X();

		if ( nFlags & IMAP_MIRROR_VERT )
			aRelPoint.Y() = rTotalSize.Height() - aRelPoint.Y();
	}

	// Alle Objekte durchlaufen und HitTest ausfuehren
	IMapObject* pObj = (IMapObject*) maList.First();
	while ( pObj )
	{
		if ( pObj->IsHit( aRelPoint ) )
			break;

		pObj = (IMapObject*) maList.Next();
	}

	return( pObj ? ( pObj->IsActive() ? pObj : NULL ) : NULL );
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

Rectangle ImageMap::GetBoundRect() const
{
	Rectangle	aBoundRect;
	sal_uLong		nCount = maList.Count();

	for ( sal_uLong i = 0; i < nCount; i++ )
		aBoundRect.Union( ( (IMapObject*) maList.GetObject( i ) )->GetBoundRect() );

	return aBoundRect;
}


/******************************************************************************
|*
|*
|*
\******************************************************************************/

void ImageMap::Scale( const Fraction& rFracX, const Fraction& rFracY )
{
	sal_uInt16 nCount = (sal_uInt16) maList.Count();

	for ( sal_uInt16 i = 0; i < nCount; i++ )
	{
		IMapObject* pObj = GetIMapObject( i );

		switch( pObj->GetType() )
		{
			case( IMAP_OBJ_RECTANGLE ):
				( (IMapRectangleObject*) pObj )->Scale( rFracX, rFracY );
			break;

			case( IMAP_OBJ_CIRCLE ):
				( (IMapCircleObject*) pObj )->Scale( rFracX, rFracY );
			break;

			case( IMAP_OBJ_POLYGON ):
				( (IMapPolygonObject*) pObj )->Scale( rFracX, rFracY );
			break;

			default:
			break;
		}
	}
}


/******************************************************************************
|*
|* Objekte nacheinander wegschreiben
|*
\******************************************************************************/

void ImageMap::ImpWriteImageMap( SvStream& rOStm, const String& rBaseURL ) const
{
	IMapObject* pObj;
	sal_uInt16		nCount = (sal_uInt16) maList.Count();

	for ( sal_uInt16 i = 0; i < nCount; i++ )
	{
		pObj = (IMapObject*) maList.GetObject( i );
        pObj->Write( rOStm, rBaseURL );
	}
}


/******************************************************************************
|*
|* Objekte nacheinander lesen
|*
\******************************************************************************/

void ImageMap::ImpReadImageMap( SvStream& rIStm, sal_uInt16 nCount, const String& rBaseURL )
{
	// neue Objekte einlesen
	for ( sal_uInt16 i = 0; i < nCount; i++ )
	{
		sal_uInt16 nType;

		rIStm >> nType;
		rIStm.SeekRel( -2 );

		switch( nType )
		{
			case ( IMAP_OBJ_RECTANGLE ):
			{
				IMapRectangleObject* pObj = new IMapRectangleObject;
                pObj->Read( rIStm, rBaseURL );
				maList.Insert( pObj, LIST_APPEND );
			}
			break;

			case ( IMAP_OBJ_CIRCLE ):
			{
				IMapCircleObject* pObj = new IMapCircleObject;
                pObj->Read( rIStm, rBaseURL );
				maList.Insert( pObj, LIST_APPEND );
			}
			break;

			case ( IMAP_OBJ_POLYGON ):
			{
				IMapPolygonObject* pObj = new IMapPolygonObject;
                pObj->Read( rIStm, rBaseURL );
				maList.Insert( pObj, LIST_APPEND );
			}
			break;

			default:
			break;
		}
	}
}


/******************************************************************************
|*
|* Binaer speichern
|*
\******************************************************************************/

void ImageMap::Write( SvStream& rOStm, const String& rBaseURL ) const
{
	IMapCompat*				pCompat;
    String                  aImageName( GetName() );
	String					aDummy;
	sal_uInt16					nOldFormat = rOStm.GetNumberFormatInt();
    sal_uInt16                  nCount = (sal_uInt16) GetIMapObjectCount();
	const rtl_TextEncoding	eEncoding = gsl_getSystemTextEncoding();

	rOStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );

	// MagicCode schreiben
	rOStm << IMAPMAGIC;
    rOStm << GetVersion();
	rOStm.WriteByteString( ByteString( aImageName, eEncoding ) );
	rOStm.WriteByteString( ByteString( aDummy, eEncoding ) );
	rOStm << nCount;
	rOStm.WriteByteString( ByteString( aImageName, eEncoding ) );

	pCompat = new IMapCompat( rOStm, STREAM_WRITE );

	// hier kann in neueren Versionen eingefuegt werden

	delete pCompat;

    ImpWriteImageMap( rOStm, rBaseURL );

	rOStm.SetNumberFormatInt( nOldFormat );
}


/******************************************************************************
|*
|* Binaer laden
|*
\******************************************************************************/

void ImageMap::Read( SvStream& rIStm, const String& rBaseURL )
{
	ByteString	aString;
	char		cMagic[6];
	sal_uInt16		nOldFormat = rIStm.GetNumberFormatInt();
	sal_uInt16		nCount;

	rIStm.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );
	rIStm.Read( cMagic, sizeof( cMagic ) );

	if ( !memcmp( cMagic, IMAPMAGIC, sizeof( cMagic ) ) )
	{
		IMapCompat* pCompat;

		// alten Inhalt loeschen
        ClearImageMap();

		// Version ueberlesen wir
		rIStm.SeekRel( 2 );

        rIStm.ReadByteString( aString ); aName = String( aString, gsl_getSystemTextEncoding() );
        rIStm.ReadByteString( aString ); // Dummy
		rIStm >> nCount;
        rIStm.ReadByteString( aString ); // Dummy

		pCompat = new IMapCompat( rIStm, STREAM_READ );

		// hier kann in neueren Versionen gelesen werden

		delete pCompat;
        ImpReadImageMap( rIStm, nCount, rBaseURL );

	}
	else
		rIStm.SetError( SVSTREAM_GENERALERROR );

	rIStm.SetNumberFormatInt( nOldFormat );
}