AOO410/main/extensions/source/scanner/sanedlg.cxx

/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/

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

#include <stdio.h>
#include <stdlib.h>
#include <tools/config.hxx>
#include <vcl/msgbox.hxx>
#include <sanedlg.hxx>
#include <sanedlg.hrc>
#include <grid.hxx>
#include <math.h>
#include <vcl/dibtools.hxx>

#define USE_SAVE_STATE
#undef  SAVE_ALL_STATES

ResId SaneResId( sal_uInt32 nID )
{
	static ResMgr* pResMgr = ResMgr::CreateResMgr( "san" );
	return ResId( nID, *pResMgr );
}

SaneDlg::SaneDlg( Window* pParent, Sane& rSane ) :
		ModalDialog( pParent, SaneResId( RID_SANE_DIALOG ) ),
		mrSane( rSane ),
		mbIsDragging( sal_False ),
		mbDragDrawn( sal_False ),
		maMapMode( MAP_APPFONT ),
		maOKButton( this, SaneResId( RID_SCAN_OK ) ),
		maCancelButton( this, SaneResId( RID_SCAN_CANCEL ) ),
		maDeviceInfoButton( this, SaneResId( RID_DEVICEINFO_BTN ) ),
		maPreviewButton( this, SaneResId( RID_PREVIEW_BTN ) ),
		maButtonOption( this, SaneResId( RID_SCAN_BUTTON_OPTION_BTN ) ),
		maOptionsTxt( this, SaneResId( RID_SCAN_OPTION_TXT ) ),
		maOptionTitle( this, SaneResId( RID_SCAN_OPTIONTITLE_TXT ) ),
		maOptionDescTxt( this, SaneResId( RID_SCAN_OPTION_DESC_TXT ) ),
		maVectorTxt( this, SaneResId( RID_SCAN_NUMERIC_VECTOR_TXT ) ),
		maScanLeftTxt( this, SaneResId( RID_SCAN_LEFT_TXT ) ),
		maLeftField( this, SaneResId( RID_SCAN_LEFT_BOX ) ),
		maScanTopTxt( this, SaneResId( RID_SCAN_TOP_TXT ) ),
		maTopField( this, SaneResId( RID_SCAN_TOP_BOX ) ),
		maRightTxt( this, SaneResId( RID_SCAN_RIGHT_TXT ) ),
		maRightField( this, SaneResId( RID_SCAN_RIGHT_BOX ) ),
		maBottomTxt( this, SaneResId( RID_SCAN_BOTTOM_TXT ) ),
		maBottomField( this, SaneResId( RID_SCAN_BOTTOM_BOX ) ),
		maDeviceBoxTxt( this, SaneResId( RID_DEVICE_BOX_TXT ) ),
		maDeviceBox( this, SaneResId( RID_DEVICE_BOX ) ),
		maReslTxt( this, SaneResId( RID_SCAN_RESOLUTION_TXT ) ),
		maReslBox( this, SaneResId( RID_SCAN_RESOLUTION_BOX ) ),
		maAdvancedTxt( this, SaneResId( RID_SCAN_ADVANCED_TXT ) ),
		maAdvancedBox( this, SaneResId( RID_SCAN_ADVANCED_BOX ) ),
		maVectorBox( this, SaneResId( RID_SCAN_NUMERIC_VECTOR_BOX ) ),
		maQuantumRangeBox( this, SaneResId( RID_SCAN_QUANTUM_RANGE_BOX ) ),
		maStringRangeBox( this, SaneResId( RID_SCAN_STRING_RANGE_BOX ) ),
		maPreviewBox( this, SaneResId( RID_PREVIEW_BOX ) ),
		maAreaBox( this, SaneResId( RID_SCANAREA_BOX ) ),
		maBoolCheckBox( this, SaneResId( RID_SCAN_BOOL_OPTION_BOX ) ),
		maStringEdit( this, SaneResId( RID_SCAN_STRING_OPTION_EDT ) ),
		maNumericEdit( this, SaneResId( RID_SCAN_NUMERIC_OPTION_EDT ) ),
		maOptionBox( this, SaneResId( RID_SCAN_OPTION_BOX ) ),
		mpRange( 0 )
{
	if( Sane::IsSane() )
	{
		InitDevices(); // opens first sane device
		DisableOption();
		InitFields();
	}

	maDeviceInfoButton.SetClickHdl( LINK( this, SaneDlg, ClickBtnHdl ) );
	maPreviewButton.SetClickHdl( LINK( this, SaneDlg, ClickBtnHdl ) );
	maButtonOption.SetClickHdl( LINK( this, SaneDlg, ClickBtnHdl ) );
	maDeviceBox.SetSelectHdl( LINK( this, SaneDlg, SelectHdl ) );
	maOptionBox.SetSelectHdl( LINK( this, SaneDlg, OptionsBoxSelectHdl ) );
	maOKButton.SetClickHdl( LINK( this, SaneDlg, ClickBtnHdl ) );
	maCancelButton.SetClickHdl( LINK( this, SaneDlg, ClickBtnHdl ) );
	maBoolCheckBox.SetClickHdl( LINK( this, SaneDlg, ClickBtnHdl ) );
	maStringEdit.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maNumericEdit.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maVectorBox.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maReslBox.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maStringRangeBox.SetSelectHdl( LINK( this, SaneDlg, SelectHdl ) );
	maQuantumRangeBox.SetSelectHdl( LINK( this, SaneDlg, SelectHdl ) );
	maLeftField.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maRightField.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maTopField.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maBottomField.SetModifyHdl( LINK( this, SaneDlg, ModifyHdl ) );
	maAdvancedBox.SetClickHdl( LINK( this, SaneDlg, ClickBtnHdl ) );

	maOldLink = mrSane.SetReloadOptionsHdl( LINK( this, SaneDlg, ReloadSaneOptionsHdl ) );

	maOptionBox.SetNodeBitmaps(
		Bitmap( SaneResId( RID_SCAN_BITMAP_PLUS ) ),
		Bitmap( SaneResId( RID_SCAN_BITMAP_MINUS ) )
		);
	maOptionBox.SetStyle( maOptionBox.GetStyle()|
                          WB_HASLINES           |
						  WB_HASBUTTONS         |
						  WB_NOINITIALSELECTION |
						  WB_HASBUTTONSATROOT   |
						  WB_HASLINESATROOT
						);
	FreeResource();
}

SaneDlg::~SaneDlg()
{
}

short SaneDlg::Execute()
{
	if( ! Sane::IsSane() )
	{
		ErrorBox aErrorBox( NULL, WB_OK | WB_DEF_OK,
							String( SaneResId( RID_SANE_NOSANELIB_TXT ) ) );
		aErrorBox.Execute();
		return sal_False;
	}
	LoadState();
	return ModalDialog::Execute();
}

void SaneDlg::InitDevices()
{
	if( ! Sane::IsSane() )
		return;

	if( mrSane.IsOpen() )
		mrSane.Close();
	mrSane.ReloadDevices();
	maDeviceBox.Clear();
	for( int i = 0; i < Sane::CountDevices(); i++ )
		maDeviceBox.InsertEntry( Sane::GetName( i ) );
	if( Sane::CountDevices() )
	{
		mrSane.Open( 0 );
		maDeviceBox.SelectEntry( Sane::GetName( 0 ) );

	}
}

void SaneDlg::InitFields()
{
	if( ! Sane::IsSane() )
		return;

	int nOption, i, nValue;
	double fValue;
	sal_Bool bSuccess = sal_False;
	const char *ppSpecialOptions[] = {
		"resolution",
		"tl-x",
		"tl-y",
		"br-x",
		"br-y",
		"preview"
	};

    mbDragEnable = sal_True;
	maReslBox.Clear();
	maMinTopLeft = Point( 0, 0 );
	maMaxBottomRight = Point( PREVIEW_WIDTH,  PREVIEW_HEIGHT );

	if( ! mrSane.IsOpen() )
		return;

	// set Resolution
	nOption = mrSane.GetOptionByName( "resolution" );
	if( nOption != -1 )
	{
		double fRes;

		bSuccess = mrSane.GetOptionValue( nOption, fRes );
		if( bSuccess )
		{
			maReslBox.Enable( sal_True );

			maReslBox.SetValue( (long)fRes );
			double *pDouble = NULL;
			nValue = mrSane.GetRange( nOption, pDouble );
			if( nValue > -1 )
			{
				if( nValue )
				{
					maReslBox.SetMin( (long)pDouble[0] );
					maReslBox.SetMax( (long)pDouble[ nValue-1 ] );
					for( i=0; i<nValue; i++ )
					{
						if( i == 0 || i == nValue-1 || ! ( ((int)pDouble[i]) % 20) )
							maReslBox.InsertValue( (long)pDouble[i] );
					}
				}
				else
				{
					maReslBox.SetMin( (long)pDouble[0] );
					maReslBox.SetMax( (long)pDouble[1] );
					maReslBox.InsertValue( (long)pDouble[0] );
					// mh@openoffice.org: issue 68557: Can only select 75 and 2400 dpi in Scanner dialogue
					// scanner allows random setting of dpi resolution, a slider might be useful 
					// support that
					// workaround: offer at least some more standard dpi resolution between 
					// min and max value
					int bGot300 = 0;
					for ( int nRes = (long) pDouble[0] * 2; nRes < (long) pDouble[1]; nRes = nRes * 2 )
					{
						if ( !bGot300 && nRes > 300 ) {
							nRes = 300; bGot300 = 1;
						}
						maReslBox.InsertValue(nRes);
					}
					maReslBox.InsertValue( (long)pDouble[1] );
				}
				if( pDouble )
					delete [] pDouble;
			}
			else
				maReslBox.Enable( sal_False );
		}
	}
	else
		maReslBox.Enable( sal_False );

	// set scan area
	for( i = 0; i < 4; i++ )
	{
		char const *pOptionName = NULL;
		MetricField* pField = NULL;
		switch( i )
		{
			case 0:
				pOptionName = "tl-x";
				pField = &maLeftField;
				break;
			case 1:
				pOptionName = "tl-y";
				pField = &maTopField;
				break;
			case 2:
				pOptionName = "br-x";
				pField = &maRightField;
				break;
			case 3:
				pOptionName = "br-y";
				pField = &maBottomField;
		}
		nOption = pOptionName ? mrSane.GetOptionByName( pOptionName ) : -1;
		bSuccess = sal_False;
		if( nOption != -1 )
		{
			bSuccess = mrSane.GetOptionValue( nOption, fValue, 0 );
			if( bSuccess )
			{
				if( mrSane.GetOptionUnit( nOption ) == SANE_UNIT_MM )
				{
					pField->SetUnit( FUNIT_MM );
					pField->SetValue( (int)fValue, FUNIT_MM );
				}
				else // SANE_UNIT_PIXEL
				{
					pField->SetValue( (int)fValue, FUNIT_CUSTOM );
					pField->SetCustomUnitText( String::CreateFromAscii( "Pixel" ) );
				}
				switch( i ) {
					case 0: maTopLeft.X() = (int)fValue;break;
					case 1:	maTopLeft.Y() = (int)fValue;break;
					case 2:	maBottomRight.X() = (int)fValue;break;
					case 3: maBottomRight.Y() = (int)fValue;break;
				}
			}
			double *pDouble = NULL;
			nValue = mrSane.GetRange( nOption, pDouble );
			if( nValue > -1 )
			{
				if( pDouble )
				{
					pField->SetMin( (long)pDouble[0] );
					if( nValue )
						pField->SetMax( (long)pDouble[ nValue-1 ] );
					else
						pField->SetMax( (long)pDouble[ 1 ] );
					delete [] pDouble;
				}
				switch( i ) {
					case 0: maMinTopLeft.X() = pField->GetMin();break;
					case 1: maMinTopLeft.Y() = pField->GetMin();break;
					case 2: maMaxBottomRight.X() = pField->GetMax();break;
					case 3: maMaxBottomRight.Y() = pField->GetMax();break;
				}
			}
			else
			{
				switch( i ) {
					case 0: maMinTopLeft.X() = (int)fValue;break;
					case 1: maMinTopLeft.Y() = (int)fValue;break;
					case 2: maMaxBottomRight.X() = (int)fValue;break;
					case 3: maMaxBottomRight.Y() = (int)fValue;break;
				}
			}
			pField->Enable( sal_True );
		}
		else
        {
            mbDragEnable = sal_False;
            pField->SetMin( 0 );
            switch( i ) {
                case 0:
                    maMinTopLeft.X() = 0;
                    maTopLeft.X() = 0;
                    pField->SetMax( PREVIEW_WIDTH );
                    pField->SetValue( 0 );
                    break;
                case 1:
                    maMinTopLeft.Y() = 0;
                    maTopLeft.Y() = 0;
                    pField->SetMax( PREVIEW_HEIGHT );
                    pField->SetValue( 0 );
                    break;
                case 2:
                    maMaxBottomRight.X() = PREVIEW_WIDTH;
                    maBottomRight.X() = PREVIEW_WIDTH;
                    pField->SetMax( PREVIEW_WIDTH );
                    pField->SetValue( PREVIEW_WIDTH );
                    break;
                case 3:
                    maMaxBottomRight.Y() = PREVIEW_HEIGHT;
                    maBottomRight.Y() = PREVIEW_HEIGHT;
                    pField->SetMax( PREVIEW_HEIGHT );
                    pField->SetValue( PREVIEW_HEIGHT );
                    break;
            }
			pField->Enable( sal_False );
        }
	}
	maTopLeft = GetPixelPos( maTopLeft );
	maBottomRight = GetPixelPos( maBottomRight );
	maPreviewRect = Rectangle( maTopLeft,
							   Size( maBottomRight.X() - maTopLeft.X(),
									 maBottomRight.Y() - maTopLeft.Y() )
							   );
	// fill OptionBox
	maOptionBox.Clear();
	SvLBoxEntry* pParentEntry = 0;
	sal_Bool bGroupRejected = sal_False;
	for( i = 1; i < mrSane.CountOptions(); i++ )
	{
		String aOption=mrSane.GetOptionName( i );
		sal_Bool bInsertAdvanced =
			mrSane.GetOptionCap( i ) & SANE_CAP_ADVANCED &&
			! maAdvancedBox.IsChecked() ? sal_False : sal_True;
		if( mrSane.GetOptionType( i ) == SANE_TYPE_GROUP )
		{
			if( bInsertAdvanced )
			{
				aOption = mrSane.GetOptionTitle( i );
				pParentEntry = maOptionBox.InsertEntry( aOption );
				bGroupRejected = sal_False;
			}
			else
				bGroupRejected = sal_True;
		}
		else if( aOption.Len() &&
				 ! ( mrSane.GetOptionCap( i ) &
					 (
						 SANE_CAP_HARD_SELECT |
						 SANE_CAP_INACTIVE
						 ) ) &&
				 bInsertAdvanced && ! bGroupRejected )
		{
			sal_Bool bIsSpecial = sal_False;
			for( size_t n = 0; !bIsSpecial &&
					 n < sizeof(ppSpecialOptions)/sizeof(ppSpecialOptions[0]); n++ )
			{
				if( aOption.EqualsAscii( ppSpecialOptions[n] ) )
					bIsSpecial=sal_True;
			}
			if( ! bIsSpecial )
			{
				if( pParentEntry )
					maOptionBox.InsertEntry( aOption, pParentEntry );
				else
					maOptionBox.InsertEntry( aOption );
			}
		}
	}
}

IMPL_LINK( SaneDlg, ClickBtnHdl, Button*, pButton )
{
	if( mrSane.IsOpen() )
	{
		if( pButton == &maDeviceInfoButton )
		{
			String aString( SaneResId( RID_SANE_DEVICEINFO_TXT ) );
			String aSR( RTL_CONSTASCII_USTRINGPARAM( "%s" ) );
			aString.SearchAndReplace( aSR, Sane::GetName( mrSane.GetDeviceNumber() ) );
			aString.SearchAndReplace( aSR, Sane::GetVendor( mrSane.GetDeviceNumber() ) );
			aString.SearchAndReplace( aSR, Sane::GetModel( mrSane.GetDeviceNumber() ) );
			aString.SearchAndReplace( aSR, Sane::GetType( mrSane.GetDeviceNumber() ) );
			InfoBox aInfoBox( this, aString );
			aInfoBox.Execute();
		}
		else if( pButton == &maPreviewButton )
			AcquirePreview();
		else if( pButton == &maBoolCheckBox )
		{
			mrSane.SetOptionValue( mnCurrentOption,
								   maBoolCheckBox.IsChecked() ?
								   (sal_Bool)sal_True : (sal_Bool)sal_False );
		}
		else if( pButton == &maButtonOption )
		{

			SANE_Value_Type nType = mrSane.GetOptionType( mnCurrentOption );
            switch( nType )
            {
                case SANE_TYPE_BUTTON:
                    mrSane.ActivateButtonOption( mnCurrentOption );
                    break;
                case SANE_TYPE_FIXED:
                case SANE_TYPE_INT:
                {
					int nElements = mrSane.GetOptionElements( mnCurrentOption );
                    double* x = new double[ nElements ];
                    double* y = new double[ nElements ];
                    for( int i = 0; i < nElements; i++ )
                        x[ i ] = (double)i;
                    mrSane.GetOptionValue( mnCurrentOption, y );

                    GridWindow aGrid( x, y, nElements, this );
                    aGrid.SetText( mrSane.GetOptionName( mnCurrentOption ) );
                    aGrid.setBoundings( 0, mfMin, nElements, mfMax );
                    if( aGrid.Execute() && aGrid.getNewYValues() )
                        mrSane.SetOptionValue( mnCurrentOption, aGrid.getNewYValues() );
                    
                    delete [] x;
                    delete [] y;
                }
                break;
                case SANE_TYPE_BOOL:
                case SANE_TYPE_STRING:
                case SANE_TYPE_GROUP:
                    break;
            }
		}
		else if( pButton == &maAdvancedBox )
		{
			ReloadSaneOptionsHdl( NULL );
		}
	}
	if( pButton == &maOKButton )
	{
		double fRes = (double)maReslBox.GetValue();
		SetAdjustedNumericalValue( "resolution", fRes );
		mrSane.SetReloadOptionsHdl( maOldLink );
		UpdateScanArea( sal_True );
		SaveState();
		EndDialog( mrSane.IsOpen() ? 1 : 0 );
	}
	else if( pButton == &maCancelButton )
	{
		mrSane.SetReloadOptionsHdl( maOldLink );
		mrSane.Close();
		EndDialog( 0 );
	}
	return 0;
}

IMPL_LINK( SaneDlg, SelectHdl, ListBox*, pListBox )
{
	if( pListBox == &maDeviceBox && Sane::IsSane() && Sane::CountDevices() )
	{
		String aNewDevice = maDeviceBox.GetSelectEntry();
		int nNumber;
		if( aNewDevice.Equals( Sane::GetName( nNumber = mrSane.GetDeviceNumber() ) ) )
		{
			mrSane.Close();
			mrSane.Open( nNumber );
			InitFields();
		}
	}
	if( mrSane.IsOpen() )
	{
		if( pListBox == &maQuantumRangeBox )
		{
			ByteString aValue( maQuantumRangeBox.GetSelectEntry(), osl_getThreadTextEncoding() );
			double fValue = atof( aValue.GetBuffer() );
			mrSane.SetOptionValue( mnCurrentOption, fValue, mnCurrentElement );
		}
		else if( pListBox == &maStringRangeBox )
		{
			mrSane.SetOptionValue( mnCurrentOption, maStringRangeBox.GetSelectEntry() );
		}
	}
	return 0;
}

IMPL_LINK( SaneDlg, OptionsBoxSelectHdl, SvTreeListBox*, pBox )
{
	if( pBox == &maOptionBox && Sane::IsSane() )
	{
		String aOption =
			maOptionBox.GetEntryText( maOptionBox.FirstSelected() );
		int nOption = mrSane.GetOptionByName( ByteString( aOption, osl_getThreadTextEncoding() ).GetBuffer() );
		if( nOption != -1 && nOption != mnCurrentOption )
		{
			DisableOption();
			mnCurrentOption = nOption;
			maOptionTitle.SetText( mrSane.GetOptionTitle( mnCurrentOption ) );
			SANE_Value_Type nType = mrSane.GetOptionType( mnCurrentOption );
			SANE_Constraint_Type nConstraint;
			switch( nType )
			{
				case SANE_TYPE_BOOL:	EstablishBoolOption();break;
				case SANE_TYPE_STRING:
					nConstraint = mrSane.GetOptionConstraintType( mnCurrentOption );
					if( nConstraint == SANE_CONSTRAINT_STRING_LIST )
						EstablishStringRange();
					else
						EstablishStringOption();
					break;
				case SANE_TYPE_FIXED:
				case SANE_TYPE_INT:
				{
					nConstraint = mrSane.GetOptionConstraintType( mnCurrentOption );
					int nElements = mrSane.GetOptionElements( mnCurrentOption );
					mnCurrentElement = 0;
                    if( nConstraint == SANE_CONSTRAINT_RANGE ||
                        nConstraint == SANE_CONSTRAINT_WORD_LIST )
                        EstablishQuantumRange();
                    else
                    {
                        mfMin = mfMax = 0.0;
                        EstablishNumericOption();
                    }
					if( nElements > 1 )
					{
						if( nElements <= 10 )
						{
							maVectorBox.SetValue( 1 );
							maVectorBox.SetMin( 1 );
							maVectorBox.SetMax(
								mrSane.GetOptionElements( mnCurrentOption ) );
							maVectorBox.Show( sal_True );
							maVectorTxt.Show( sal_True );
						}
						else
						{
                            DisableOption();
                            // bring up dialog only on button click
                            EstablishButtonOption();
						}
					}
				}
				break;
				case SANE_TYPE_BUTTON:
					EstablishButtonOption();
					break;
				default: break;
			}
		}
	}
	return 0;
}

IMPL_LINK( SaneDlg, ModifyHdl, Edit*, pEdit )
{
	if( mrSane.IsOpen() )
	{
		if( pEdit == &maStringEdit )
		{
			mrSane.SetOptionValue( mnCurrentOption, maStringEdit.GetText() );
		}
		else if( pEdit == &maReslBox )
		{
			double fRes = (double)maReslBox.GetValue();
			int nOption = mrSane.GetOptionByName( "resolution" );
			if( nOption != -1 )
			{
				double* pDouble = NULL;
				int nValues = mrSane.GetRange( nOption, pDouble );
				if( nValues > 0 )
				{
					int i;
					for( i = 0; i < nValues; i++ )
					{
						if( fRes == pDouble[i] )
							break;
					}
					if( i >= nValues )
						fRes = pDouble[0];
				}
				else if( nValues == 0 )
				{
					if( fRes < pDouble[ 0 ] )
						fRes = pDouble[ 0 ];
					if( fRes > pDouble[ 1 ] )
						fRes = pDouble[ 1 ];
				}
				maReslBox.SetValue( (sal_uLong)fRes );
			}
		}
		else if( pEdit == &maNumericEdit )
		{
			double fValue;
			char pBuf[256];
			ByteString aContents( maNumericEdit.GetText(), osl_getThreadTextEncoding() );
			fValue = atof( aContents.GetBuffer() );
			if( mfMin != mfMax && ( fValue < mfMin || fValue > mfMax ) )
			{
				if( fValue < mfMin )
					fValue = mfMin;
				else if( fValue > mfMax )
				fValue = mfMax;
				sprintf( pBuf, "%g", fValue );
				maNumericEdit.SetText( String( pBuf, osl_getThreadTextEncoding() ) );
			}
			mrSane.SetOptionValue( mnCurrentOption, fValue, mnCurrentElement );
		}
		else if( pEdit == &maVectorBox )
		{
			char pBuf[256];
			mnCurrentElement = maVectorBox.GetValue()-1;
			double fValue;
			mrSane.GetOptionValue( mnCurrentOption, fValue, mnCurrentElement );
			sprintf( pBuf, "%g", fValue );
			String aValue( pBuf, osl_getThreadTextEncoding() );
			maNumericEdit.SetText( aValue );
			maQuantumRangeBox.SelectEntry( aValue );
		}
		else if( pEdit == &maTopField )
		{
			Point aPoint( 0, maTopField.GetValue() );
			aPoint = GetPixelPos( aPoint );
			maTopLeft.Y() = aPoint.Y();
			DrawDrag();
		}
		else if( pEdit == &maLeftField )
		{
			Point aPoint( maLeftField.GetValue(), 0 );
			aPoint = GetPixelPos( aPoint );
			maTopLeft.X() = aPoint.X();
			DrawDrag();
		}
		else if( pEdit == &maBottomField )
		{
			Point aPoint( 0, maBottomField.GetValue() );
			aPoint = GetPixelPos( aPoint );
			maBottomRight.Y() = aPoint.Y();
			DrawDrag();
		}
		else if( pEdit == &maRightField )
		{
			Point aPoint( maRightField.GetValue(), 0 );
			aPoint = GetPixelPos( aPoint );
			maBottomRight.X() = aPoint.X();
			DrawDrag();
		}
	}
	return 0;
}

IMPL_LINK( SaneDlg, ReloadSaneOptionsHdl, Sane*, /*pSane*/ )
{
 	mnCurrentOption = -1;
 	mnCurrentElement = 0;
 	DisableOption();
    // #92024# preserve preview rect, should only be set
    // initially or in AcquirePreview
    Rectangle aPreviewRect = maPreviewRect;
	InitFields();
    maPreviewRect = aPreviewRect;
	Rectangle aDummyRect( Point( 0, 0 ), GetSizePixel() );
	Paint( aDummyRect );
	return 0;
}

void SaneDlg::AcquirePreview()
{
	if( ! mrSane.IsOpen() )
		return;

	UpdateScanArea( sal_True );
	// set small resolution for preview
	double fResl = (double)maReslBox.GetValue();
	SetAdjustedNumericalValue( "resolution", 30.0 );

	int nOption = mrSane.GetOptionByName( "preview" );
	if( nOption == -1 )
	{
		String aString( SaneResId( RID_SANE_NORESOLUTIONOPTION_TXT ) );
		WarningBox aBox( this, WB_OK_CANCEL | WB_DEF_OK, aString );
		if( aBox.Execute() == RET_CANCEL )
			return;
	}
	else
		mrSane.SetOptionValue( nOption, (sal_Bool)sal_True );

	BitmapTransporter aTransporter;
	if( ! mrSane.Start( aTransporter ) )
	{
		ErrorBox aErrorBox( this, WB_OK | WB_DEF_OK,
							String( SaneResId( RID_SANE_SCANERROR_TXT ) ) );
		aErrorBox.Execute();
	}
	else
	{
#if OSL_DEBUG_LEVEL > 1
		aTransporter.getStream().Seek( STREAM_SEEK_TO_END );
		fprintf( stderr, "Previewbitmapstream contains %d bytes\n", (int)aTransporter.getStream().Tell() );
#endif
		aTransporter.getStream().Seek( STREAM_SEEK_TO_BEGIN );
        ReadDIB(maPreviewBitmap, aTransporter.getStream(), true);
	}

	SetAdjustedNumericalValue( "resolution", fResl );
	maReslBox.SetValue( (sal_uLong)fResl );

    if( mbDragEnable )
        maPreviewRect = Rectangle( maTopLeft,
                                   Size( maBottomRight.X() - maTopLeft.X(),
                                         maBottomRight.Y() - maTopLeft.Y() )
                                   );
    else
    {
        Size aBMSize( maPreviewBitmap.GetSizePixel() );
        if( aBMSize.Width() > aBMSize.Height() )
        {
            int nVHeight = (maBottomRight.X() - maTopLeft.X()) * aBMSize.Height() / aBMSize.Width();
            maPreviewRect = Rectangle( Point( maTopLeft.X(), ( maTopLeft.Y() + maBottomRight.Y() )/2 - nVHeight/2 ),
                                       Size( maBottomRight.X() - maTopLeft.X(),
                                             nVHeight ) );
        }
        else
        {
            int nVWidth = (maBottomRight.Y() - maTopLeft.Y()) * aBMSize.Width() / aBMSize.Height();
            maPreviewRect = Rectangle( Point( ( maTopLeft.X() + maBottomRight.X() )/2 - nVWidth/2, maTopLeft.Y() ),
                                       Size( nVWidth,
                                             maBottomRight.Y() - maTopLeft.Y() ) );
        }
    }

	Paint( Rectangle( Point( 0, 0 ), GetSizePixel() ) );
}

void SaneDlg::Paint( const Rectangle& rRect )
{
	SetMapMode( maMapMode );
	SetFillColor( Color( COL_WHITE ) );
	SetLineColor( Color( COL_WHITE ) );
	DrawRect( Rectangle( Point( PREVIEW_UPPER_LEFT, PREVIEW_UPPER_TOP ),
						 Size( PREVIEW_WIDTH, PREVIEW_HEIGHT ) ) );
	SetMapMode( MapMode( MAP_PIXEL ) );
	// check for sane values
	DrawBitmap( maPreviewRect.TopLeft(), maPreviewRect.GetSize(),
				maPreviewBitmap );

	mbDragDrawn = sal_False;
	DrawDrag();

	ModalDialog::Paint( rRect );
}

void SaneDlg::DisableOption()
{
	maBoolCheckBox.Show( sal_False );
	maStringEdit.Show( sal_False );
	maNumericEdit.Show( sal_False );
	maQuantumRangeBox.Show( sal_False );
	maStringRangeBox.Show( sal_False );
	maButtonOption.Show( sal_False );
	maVectorBox.Show( sal_False );
	maVectorTxt.Show( sal_False );
	maOptionDescTxt.Show( sal_False );
}

void SaneDlg::EstablishBoolOption()
{
	sal_Bool bSuccess, bValue;

	bSuccess = mrSane.GetOptionValue( mnCurrentOption, bValue );
	if( bSuccess )
	{
		maOptionDescTxt.SetText( mrSane.GetOptionName( mnCurrentOption ) );
		maOptionDescTxt.Show( sal_True );
		maBoolCheckBox.Check( bValue );
		maBoolCheckBox.Show( sal_True );
	}
}

void SaneDlg::EstablishStringOption()
{
	sal_Bool bSuccess;
	ByteString aValue;

	bSuccess = mrSane.GetOptionValue( mnCurrentOption, aValue );
	if( bSuccess )
	{
		maOptionDescTxt.SetText( mrSane.GetOptionName( mnCurrentOption ) );
		maOptionDescTxt.Show( sal_True );
		maStringEdit.SetText( String( aValue, osl_getThreadTextEncoding() ) );
		maStringEdit.Show( sal_True );
	}
}

void SaneDlg::EstablishStringRange()
{
	const char** ppStrings = mrSane.GetStringConstraint( mnCurrentOption );
	maStringRangeBox.Clear();
	for( int i = 0; ppStrings[i] != 0; i++ )
		maStringRangeBox.InsertEntry( String( ppStrings[i], osl_getThreadTextEncoding() ) );
	ByteString aValue;
	mrSane.GetOptionValue( mnCurrentOption, aValue );
	maStringRangeBox.SelectEntry( String( aValue, osl_getThreadTextEncoding() ) );
	maStringRangeBox.Show( sal_True );
	maOptionDescTxt.SetText( mrSane.GetOptionName( mnCurrentOption ) );
	maOptionDescTxt.Show( sal_True );
}

void SaneDlg::EstablishQuantumRange()
{
	if( mpRange )
	{
		delete [] mpRange;
		mpRange = 0;
	}
	int nValues = mrSane.GetRange( mnCurrentOption, mpRange );
	if( nValues == 0 )
	{
		mfMin = mpRange[ 0 ];
		mfMax = mpRange[ 1 ];
		delete [] mpRange;
		mpRange = 0;
		EstablishNumericOption();
	}
	else if( nValues > 0 )
	{
		char pBuf[ 256 ];
		maQuantumRangeBox.Clear();
		mfMin = mpRange[ 0 ];
		mfMax = mpRange[ nValues-1 ];
		for( int i = 0; i < nValues; i++ )
		{
			sprintf( pBuf, "%g", mpRange[ i ] );
			maQuantumRangeBox.InsertEntry( String( pBuf, osl_getThreadTextEncoding() ) );
		}
		double fValue;
		if( mrSane.GetOptionValue( mnCurrentOption, fValue, mnCurrentElement ) )
		{
			sprintf( pBuf, "%g", fValue );
			maQuantumRangeBox.SelectEntry( String( pBuf, osl_getThreadTextEncoding() ) );
		}
		maQuantumRangeBox.Show( sal_True );
		String aText( mrSane.GetOptionName( mnCurrentOption ) );
		aText += ' ';
		aText += mrSane.GetOptionUnitName( mnCurrentOption );
		maOptionDescTxt.SetText( aText );
		maOptionDescTxt.Show( sal_True );
	}
}

void SaneDlg::EstablishNumericOption()
{
	sal_Bool bSuccess;
	double fValue;

	bSuccess = mrSane.GetOptionValue( mnCurrentOption, fValue );
	if( ! bSuccess )
		return;

	char pBuf[256];
	String aText( mrSane.GetOptionName( mnCurrentOption ) );
	aText += ' ';
	aText += mrSane.GetOptionUnitName( mnCurrentOption );
	if( mfMin != mfMax )
	{
		sprintf( pBuf, " < %g ; %g >", mfMin, mfMax );
		aText += String( pBuf, osl_getThreadTextEncoding() );
	}
	maOptionDescTxt.SetText( aText );
	maOptionDescTxt.Show( sal_True );
	sprintf( pBuf, "%g", fValue );
	maNumericEdit.SetText( String( pBuf, osl_getThreadTextEncoding() ) );
	maNumericEdit.Show( sal_True );
}

void SaneDlg::EstablishButtonOption()
{
	maOptionDescTxt.SetText( mrSane.GetOptionName( mnCurrentOption ) );
	maOptionDescTxt.Show( sal_True );
	maButtonOption.Show( sal_True );
}

#define RECT_SIZE_PIX 7

void SaneDlg::MouseMove( const MouseEvent& rMEvt )
{
	if( mbIsDragging )
	{
		Point aMousePos = rMEvt.GetPosPixel();
		// move into valid area
		Point aLogicPos = GetLogicPos( aMousePos );
		aMousePos = GetPixelPos( aLogicPos );
		switch( meDragDirection )
		{
			case TopLeft:		maTopLeft = aMousePos; break;
			case Top:			maTopLeft.Y() = aMousePos.Y(); break;
			case TopRight:
				maTopLeft.Y() = aMousePos.Y();
				maBottomRight.X() = aMousePos.X();
				break;
			case Right:			maBottomRight.X() = aMousePos.X(); break;
			case BottomRight:	maBottomRight = aMousePos; break;
			case Bottom:		maBottomRight.Y() = aMousePos.Y(); break;
			case BottomLeft:
				maTopLeft.X() = aMousePos.X();
				maBottomRight.Y() = aMousePos.Y();
				break;
			case Left:			maTopLeft.X() = aMousePos.X(); break;
			default: break;
		}
		int nSwap;
		if( maTopLeft.X() > maBottomRight.X() )
		{
			nSwap = maTopLeft.X();
			maTopLeft.X() = maBottomRight.X();
			maBottomRight.X() = nSwap;
		}
		if( maTopLeft.Y() > maBottomRight.Y() )
		{
			nSwap = maTopLeft.Y();
			maTopLeft.Y() = maBottomRight.Y();
			maBottomRight.Y() = nSwap;
		}
		DrawDrag();
		UpdateScanArea( sal_False );
	}
	ModalDialog::MouseMove( rMEvt );
}

void SaneDlg::MouseButtonDown( const MouseEvent& rMEvt )
{
	Point aMousePixel = rMEvt.GetPosPixel();

	if( ! mbIsDragging  && mbDragEnable )
	{
		int nMiddleX = ( maBottomRight.X() - maTopLeft.X() ) / 2 - RECT_SIZE_PIX/2 + maTopLeft.X();
		int nMiddleY = ( maBottomRight.Y() - maTopLeft.Y() ) / 2 - RECT_SIZE_PIX/2 + maTopLeft.Y();
		if( aMousePixel.Y() >= maTopLeft.Y() &&
			aMousePixel.Y() < maTopLeft.Y() + RECT_SIZE_PIX )
		{
			if( aMousePixel.X() >= maTopLeft.X() &&
				aMousePixel.X() < maTopLeft.X() + RECT_SIZE_PIX )
			{
				meDragDirection = TopLeft;
				aMousePixel = maTopLeft;
				mbIsDragging = sal_True;
			}
			else if( aMousePixel.X() >= nMiddleX &&
					 aMousePixel.X() < nMiddleX + RECT_SIZE_PIX )
			{
				meDragDirection = Top;
				aMousePixel.Y() = maTopLeft.Y();
				mbIsDragging = sal_True;
			}
			else if( aMousePixel.X() > maBottomRight.X() - RECT_SIZE_PIX &&
					 aMousePixel.X() <= maBottomRight.X() )
			{
				meDragDirection = TopRight;
				aMousePixel = Point( maBottomRight.X(), maTopLeft.Y() );
				mbIsDragging = sal_True;
			}
		}
		else if( aMousePixel.Y() >= nMiddleY &&
				 aMousePixel.Y() < nMiddleY + RECT_SIZE_PIX )
		{
			if( aMousePixel.X() >= maTopLeft.X() &&
				aMousePixel.X() < maTopLeft.X() + RECT_SIZE_PIX )
			{
				meDragDirection = Left;
				aMousePixel.X() = maTopLeft.X();
				mbIsDragging = sal_True;
			}
			else if( aMousePixel.X() > maBottomRight.X() - RECT_SIZE_PIX &&
					 aMousePixel.X() <= maBottomRight.X() )
			{
				meDragDirection = Right;
				aMousePixel.X() = maBottomRight.X();
				mbIsDragging = sal_True;
			}
		}
		else if( aMousePixel.Y() <= maBottomRight.Y() &&
				 aMousePixel.Y() > maBottomRight.Y() - RECT_SIZE_PIX )
		{
			if( aMousePixel.X() >= maTopLeft.X() &&
				aMousePixel.X() < maTopLeft.X() + RECT_SIZE_PIX )
			{
				meDragDirection = BottomLeft;
				aMousePixel = Point( maTopLeft.X(), maBottomRight.Y() );
				mbIsDragging = sal_True;
			}
			else if( aMousePixel.X() >= nMiddleX &&
					 aMousePixel.X() < nMiddleX + RECT_SIZE_PIX )
			{
				meDragDirection = Bottom;
				aMousePixel.Y() = maBottomRight.Y();
				mbIsDragging = sal_True;
			}
			else if( aMousePixel.X() > maBottomRight.X() - RECT_SIZE_PIX &&
					 aMousePixel.X() <= maBottomRight.X() )
			{
				meDragDirection = BottomRight;
				aMousePixel = maBottomRight;
				mbIsDragging = sal_True;
			}
		}
	}
	if( mbIsDragging )
	{
		SetPointerPosPixel( aMousePixel );
		DrawDrag();
	}
	ModalDialog::MouseButtonDown( rMEvt );
}

void SaneDlg::MouseButtonUp( const MouseEvent& rMEvt )
{
	if( mbIsDragging )
	{
		UpdateScanArea( sal_True );
	}
	mbIsDragging = sal_False;

	ModalDialog::MouseButtonUp( rMEvt );
}

void SaneDlg::DrawRectangles( Point& rUL, Point& rBR )
{
	int nMiddleX, nMiddleY;
	Point aBL, aUR;

	aUR = Point( rBR.X(), rUL.Y() );
	aBL = Point( rUL.X(), rBR.Y() );
	nMiddleX = ( rBR.X() - rUL.X() ) / 2 + rUL.X();
	nMiddleY = ( rBR.Y() - rUL.Y() ) / 2 + rUL.Y();

	DrawLine( rUL, aBL );
	DrawLine( aBL, rBR );
	DrawLine( rBR, aUR );
	DrawLine( aUR, rUL );
	DrawRect( Rectangle( rUL, Size( RECT_SIZE_PIX,RECT_SIZE_PIX ) ) );
	DrawRect( Rectangle( aBL, Size( RECT_SIZE_PIX, -RECT_SIZE_PIX ) ) );
	DrawRect( Rectangle( rBR, Size( -RECT_SIZE_PIX, -RECT_SIZE_PIX ) ) );
	DrawRect( Rectangle( aUR, Size( -RECT_SIZE_PIX, RECT_SIZE_PIX ) ) );
	DrawRect( Rectangle( Point( nMiddleX - RECT_SIZE_PIX/2, rUL.Y() ), Size( RECT_SIZE_PIX, RECT_SIZE_PIX ) ) );
	DrawRect( Rectangle( Point( nMiddleX - RECT_SIZE_PIX/2, rBR.Y() ), Size( RECT_SIZE_PIX, -RECT_SIZE_PIX ) ) );
	DrawRect( Rectangle( Point( rUL.X(), nMiddleY - RECT_SIZE_PIX/2 ), Size( RECT_SIZE_PIX, RECT_SIZE_PIX ) ) );
	DrawRect( Rectangle( Point( rBR.X(), nMiddleY - RECT_SIZE_PIX/2 ), Size( -RECT_SIZE_PIX, RECT_SIZE_PIX ) ) );
}

void SaneDlg::DrawDrag()
{
	static Point aLastUL, aLastBR;

    if( ! mbDragEnable )
        return;

	RasterOp eROP = GetRasterOp();
	SetRasterOp( ROP_INVERT );
	SetMapMode( MapMode( MAP_PIXEL ) );

	if( mbDragDrawn )
		DrawRectangles( aLastUL, aLastBR );

	aLastUL = maTopLeft;
	aLastBR = maBottomRight;
	DrawRectangles( maTopLeft, maBottomRight );

	mbDragDrawn = sal_True;
	SetRasterOp( eROP );
	SetMapMode( maMapMode );
}

Point SaneDlg::GetPixelPos( const Point& rIn )
{
	Point aConvert(
		( ( rIn.X() * PREVIEW_WIDTH ) /
		  ( maMaxBottomRight.X() - maMinTopLeft.X() ) )
		+ PREVIEW_UPPER_LEFT,
		( ( rIn.Y() * PREVIEW_HEIGHT )
		  / ( maMaxBottomRight.Y() - maMinTopLeft.Y() ) )
		+ PREVIEW_UPPER_TOP );

	return LogicToPixel( aConvert, maMapMode );
}

Point SaneDlg::GetLogicPos( const Point& rIn )
{
	Point aConvert = PixelToLogic( rIn, maMapMode );
	aConvert.X() -= PREVIEW_UPPER_LEFT;
	aConvert.Y() -= PREVIEW_UPPER_TOP;
	if( aConvert.X() < 0 )
		aConvert.X() = 0;
	if( aConvert.X() >= PREVIEW_WIDTH )
		aConvert.X() = PREVIEW_WIDTH-1;
	if( aConvert.Y() < 0 )
		aConvert.Y() = 0;
	if( aConvert.Y() >= PREVIEW_HEIGHT )
		aConvert.Y() = PREVIEW_HEIGHT-1;

	aConvert.X() *= ( maMaxBottomRight.X() - maMinTopLeft.X() );
	aConvert.X() /= PREVIEW_WIDTH;
	aConvert.Y() *= ( maMaxBottomRight.Y() - maMinTopLeft.Y() );
	aConvert.Y() /= PREVIEW_HEIGHT;
	return aConvert;
}

void SaneDlg::UpdateScanArea( sal_Bool bSend )
{
    if( ! mbDragEnable )
        return;

	Point aUL = GetLogicPos( maTopLeft );
	Point aBR = GetLogicPos( maBottomRight );

	maLeftField.SetValue( aUL.X() );
	maTopField.SetValue( aUL.Y() );
	maRightField.SetValue( aBR.X() );
	maBottomField.SetValue( aBR.Y() );

	if( ! bSend )
		return;

	if( mrSane.IsOpen() )
	{
		SetAdjustedNumericalValue( "tl-x", (double)aUL.X() );
		SetAdjustedNumericalValue( "tl-y", (double)aUL.Y() );
		SetAdjustedNumericalValue( "br-x", (double)aBR.X() );
		SetAdjustedNumericalValue( "br-y", (double)aBR.Y() );
	}
}

sal_Bool SaneDlg::LoadState()
{
#ifdef USE_SAVE_STATE
	int i;

	if( ! Sane::IsSane() )
		return sal_False;

	const char* pEnv = getenv("HOME");
	String aFileName( pEnv ? pEnv : "", osl_getThreadTextEncoding() );
	aFileName += String( RTL_CONSTASCII_USTRINGPARAM( "/.so_sane_state" ) );
	Config aConfig( aFileName );
	if( ! aConfig.HasGroup( "SANE" ) )
		return sal_False;

	aConfig.SetGroup( "SANE" );
	ByteString aString = aConfig.ReadKey( "SO_LastSaneDevice" );
	for( i = 0; i < Sane::CountDevices() && ! aString.Equals( ByteString( Sane::GetName( i ), osl_getThreadTextEncoding() ) ); i++ ) ;
	if( i == Sane::CountDevices() )
		return sal_False;

	mrSane.Close();
	mrSane.Open( aString.GetBuffer() );

	DisableOption();
	InitFields();

	if( mrSane.IsOpen() )
	{
		int iMax = aConfig.GetKeyCount();
		for( i = 0; i < iMax; i++ )
		{
			aString = aConfig.GetKeyName( i );
			ByteString aValue = aConfig.ReadKey( i );
			int nOption = mrSane.GetOptionByName( aString.GetBuffer() );
			if( nOption != -1 )
			{
				if( aValue.CompareTo( "BOOL=", 5 ) == COMPARE_EQUAL )
				{
					aValue.Erase( 0, 5 );
					sal_Bool aBOOL = (sal_Bool)aValue.ToInt32();
					mrSane.SetOptionValue( nOption, aBOOL );
				}
				else if( aValue.CompareTo( "STRING=", 7 ) == COMPARE_EQUAL )
				{
					aValue.Erase( 0, 7 );
					mrSane.SetOptionValue( nOption, String( aValue, osl_getThreadTextEncoding() ) );
				}
				else if( aValue.CompareTo( "NUMERIC=", 8 ) == COMPARE_EQUAL )
				{
					aValue.Erase( 0, 8 );
					int nMax = aValue.GetTokenCount( ':' );
					double fValue=0.0;
					for( int n = 0; n < nMax ; n++ )
					{
						ByteString aSub = aValue.GetToken( n, ':' );
						sscanf( aSub.GetBuffer(), "%lg", &fValue );
						SetAdjustedNumericalValue( aString.GetBuffer(), fValue, n );
					}
				}
			}
		}
	}

	DisableOption();
	InitFields();

	return sal_True;
#else
	return sal_False;
#endif
}

void SaneDlg::SaveState()
{
#ifdef USE_SAVE_STATE
	if( ! Sane::IsSane() )
		return;

	const char* pEnv = getenv( "HOME" );
	String aFileName( pEnv ? pEnv : "", osl_getThreadTextEncoding() );
	aFileName.AppendAscii( "/.so_sane_state" );

	Config aConfig( aFileName );
	aConfig.DeleteGroup( "SANE" );
	aConfig.SetGroup( "SANE" );
	aConfig.WriteKey( "SO_LastSANEDevice", ByteString( maDeviceBox.GetSelectEntry(), RTL_TEXTENCODING_UTF8 ) );

#ifdef SAVE_ALL_STATES
	for( int i = 1; i < mrSane.CountOptions(); i++ )
	{
		String aOption=mrSane.GetOptionName( i );
		SANE_Value_Type nType = mrSane.GetOptionType( i );
		switch( nType )
		{
			case SANE_TYPE_BOOL:
			{
				sal_Bool bValue;
				if( mrSane.GetOptionValue( i, bValue ) )
				{
					ByteString aString( "BOOL=" );
					aString += (sal_uLong)bValue;
					aConfig.WriteKey( aOption, aString );
				}
			}
			break;
			case SANE_TYPE_STRING:
			{
				String aString( "STRING=" );
				String aValue;
				if( mrSane.GetOptionValue( i, aValue ) )
				{
					aString += aValue;
					aConfig.WriteKey( aOption, aString );
				}
			}
			break;
			case SANE_TYPE_FIXED:
			case SANE_TYPE_INT:
			{
				String aString( "NUMERIC=" );
				double fValue;
				char buf[256];
				for( int n = 0; n < mrSane.GetOptionElements( i ); n++ )
				{
					if( ! mrSane.GetOptionValue( i, fValue, n ) )
						break;
					if( n > 0 )
						aString += ":";
					sprintf( buf, "%lg", fValue );
					aString += buf;
				}
				if( n >= mrSane.GetOptionElements( i ) )
					aConfig.WriteKey( aOption, aString );
			}
			break;
			default:
				break;
		}
 	}
#else
	static char const* pSaveOptions[] = {
		"resolution",
		"tl-x",
		"tl-y",
		"br-x",
		"br-y"
	};
	for( size_t i = 0;
		 i < (sizeof(pSaveOptions)/sizeof(pSaveOptions[0]));
		 i++ )
	{
		ByteString aOption = pSaveOptions[i];
		int nOption = mrSane.GetOptionByName( pSaveOptions[i] );
		if( nOption > -1 )
		{
			SANE_Value_Type nType = mrSane.GetOptionType( nOption );
			switch( nType )
			{
				case SANE_TYPE_BOOL:
				{
					sal_Bool bValue;
					if( mrSane.GetOptionValue( nOption, bValue ) )
					{
						ByteString aString( "BOOL=" );
						aString += ByteString::CreateFromInt32(bValue);
						aConfig.WriteKey( aOption, aString );
					}
				}
				break;
				case SANE_TYPE_STRING:
				{
					ByteString aString( "STRING=" );
					ByteString aValue;
					if( mrSane.GetOptionValue( nOption, aValue ) )
					{
						aString += aValue;
						aConfig.WriteKey( aOption, aString );
					}
				}
				break;
				case SANE_TYPE_FIXED:
				case SANE_TYPE_INT:
				{
					ByteString aString( "NUMERIC=" );
					double fValue;
					char buf[256];
					int n;

					for( n = 0; n < mrSane.GetOptionElements( nOption ); n++ )
					{
						if( ! mrSane.GetOptionValue( nOption, fValue, n ) )
							break;
						if( n > 0 )
							aString += ":";
						sprintf( buf, "%lg", fValue );
						aString += buf;
					}
					if( n >= mrSane.GetOptionElements( nOption ) )
						aConfig.WriteKey( aOption, aString );
				}
				break;
				default:
					break;
			}
		}
	}
#endif
#endif
}

sal_Bool SaneDlg::SetAdjustedNumericalValue(
	const char* pOption,
	double fValue,
	int nElement )
{
	int nOption;
	if( ! Sane::IsSane() || ! mrSane.IsOpen() || ( nOption = mrSane.GetOptionByName( pOption ) ) == -1 )
		return sal_False;

	if( nElement < 0 || nElement >= mrSane.GetOptionElements( nOption ) )
		return sal_False;

	double* pValues = NULL;
	int nValues;
	if( ( nValues = mrSane.GetRange( nOption, pValues ) ) < 0 )
		return sal_False;

#if OSL_DEBUG_LEVEL > 1
	fprintf( stderr, "SaneDlg::SetAdjustedNumericalValue( \"%s\", %lg ) ",
			 pOption, fValue );
#endif

	if( nValues )
	{
		int nNearest = 0;
		double fNearest = 1e6;
		for( int i = 0; i < nValues; i++ )
		{
			if( fabs( fValue - pValues[ i ] ) < fNearest )
			{
				fNearest = fabs( fValue - pValues[ i ] );
				nNearest = i;
			}
		}
		fValue = pValues[ nNearest ];
	}
	else
	{
		if( fValue < pValues[0] )
			fValue = pValues[0];
		if( fValue > pValues[1] )
			fValue = pValues[1];
	}
	delete [] pValues;
	mrSane.SetOptionValue( nOption, fValue, nElement );
#if OSL_DEBUG_LEVEL > 1
	fprintf( stderr, "yields %lg\n", fValue );
#endif


	return sal_True;
}