ui/view/select.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_sc.hxx"


// INCLUDE ---------------------------------------------------------------

#include <tools/urlobj.hxx>
#include <vcl/sound.hxx>
#include <sfx2/docfile.hxx>

#include "select.hxx"
#include "sc.hrc"
#include "tabvwsh.hxx"
#include "scmod.hxx"
#include "document.hxx"
//#include "dataobj.hxx"
#include "transobj.hxx"
#include "docsh.hxx"
#include "tabprotection.hxx"

extern sal_uInt16 nScFillModeMouseModifier;				// global.cxx

using namespace com::sun::star;

// STATIC DATA -----------------------------------------------------------

static Point aSwitchPos;				//! Member
static sal_Bool bDidSwitch = sal_False;

// -----------------------------------------------------------------------

//
//					View (Gridwin / Tastatur)
//

ScViewFunctionSet::ScViewFunctionSet( ScViewData* pNewViewData ) :
		pViewData( pNewViewData ),
		pEngine( NULL ),
		bAnchor( sal_False ),
		bStarted( sal_False )
{
	DBG_ASSERT(pViewData, "ViewData==0 bei FunctionSet");
}

ScSplitPos ScViewFunctionSet::GetWhich()
{
	if (pEngine)
		return pEngine->GetWhich();
	else
		return pViewData->GetActivePart();
}

void ScViewFunctionSet::SetSelectionEngine( ScViewSelectionEngine* pSelEngine )
{
	pEngine = pSelEngine;
}

//		Drag & Drop

void __EXPORT ScViewFunctionSet::BeginDrag()
{
	SCTAB nTab = pViewData->GetTabNo();

	SCsCOL nPosX;
	SCsROW nPosY;
	if (pEngine)
	{
		Point aMPos = pEngine->GetMousePosPixel();
		pViewData->GetPosFromPixel( aMPos.X(), aMPos.Y(), GetWhich(), nPosX, nPosY );
	}
	else
	{
		nPosX = pViewData->GetCurX();
		nPosY = pViewData->GetCurY();
	}

	ScModule* pScMod = SC_MOD();
	sal_Bool bRefMode = pScMod->IsFormulaMode();
	if (!bRefMode)
	{
		pViewData->GetView()->FakeButtonUp( GetWhich() );	// ButtonUp wird verschluckt

		ScMarkData& rMark = pViewData->GetMarkData();
//		rMark.SetMarking(sal_False);						// es fehlt ein ButtonUp
		rMark.MarkToSimple();
		if ( rMark.IsMarked() && !rMark.IsMultiMarked() )
		{
			ScDocument* pClipDoc = new ScDocument( SCDOCMODE_CLIP );
			// bApi = sal_True -> no error mesages
			sal_Bool bCopied = pViewData->GetView()->CopyToClip( pClipDoc, sal_False, sal_True );
			if ( bCopied )
			{
				sal_Int8 nDragActions = pViewData->GetView()->SelectionEditable() ?
										( DND_ACTION_COPYMOVE | DND_ACTION_LINK ) :
										( DND_ACTION_COPY | DND_ACTION_LINK );

				ScDocShell* pDocSh = pViewData->GetDocShell();
				TransferableObjectDescriptor aObjDesc;
				pDocSh->FillTransferableObjectDescriptor( aObjDesc );
				aObjDesc.maDisplayName = pDocSh->GetMedium()->GetURLObject().GetURLNoPass();
				// maSize is set in ScTransferObj ctor

				ScTransferObj* pTransferObj = new ScTransferObj( pClipDoc, aObjDesc );
				uno::Reference<datatransfer::XTransferable> xTransferable( pTransferObj );

				// set position of dragged cell within range
				ScRange aMarkRange = pTransferObj->GetRange();
				SCCOL nStartX = aMarkRange.aStart.Col();
				SCROW nStartY = aMarkRange.aStart.Row();
				SCCOL nHandleX = (nPosX >= (SCsCOL) nStartX) ? nPosX - nStartX : 0;
				SCROW nHandleY = (nPosY >= (SCsROW) nStartY) ? nPosY - nStartY : 0;
				pTransferObj->SetDragHandlePos( nHandleX, nHandleY );
				pTransferObj->SetVisibleTab( nTab );

				pTransferObj->SetDragSource( pDocSh, rMark );

				Window* pWindow = pViewData->GetActiveWin();
				if ( pWindow->IsTracking() )
					pWindow->EndTracking( ENDTRACK_CANCEL );	// abort selecting

				SC_MOD()->SetDragObject( pTransferObj, NULL );		// for internal D&D
				pTransferObj->StartDrag( pWindow, nDragActions );

				return;			// dragging started
			}
			else
				delete pClipDoc;
		}
	}

	Sound::Beep();			// can't drag
}

//		Selektion

void __EXPORT ScViewFunctionSet::CreateAnchor()
{
	if (bAnchor) return;

	sal_Bool bRefMode = SC_MOD()->IsFormulaMode();
	if (bRefMode)
		SetAnchor( pViewData->GetRefStartX(), pViewData->GetRefStartY() );
	else
		SetAnchor( pViewData->GetCurX(), pViewData->GetCurY() );
}

void ScViewFunctionSet::SetAnchor( SCCOL nPosX, SCROW nPosY )
{
	sal_Bool bRefMode = SC_MOD()->IsFormulaMode();
	ScTabView* pView = pViewData->GetView();
	SCTAB nTab = pViewData->GetTabNo();

	if (bRefMode)
	{
		pView->DoneRefMode( sal_False );
		aAnchorPos.Set( nPosX, nPosY, nTab );
		pView->InitRefMode( aAnchorPos.Col(), aAnchorPos.Row(), aAnchorPos.Tab(),
							SC_REFTYPE_REF );
		bStarted = sal_True;
	}
	else if (pViewData->IsAnyFillMode())
	{
		aAnchorPos.Set( nPosX, nPosY, nTab );
		bStarted = sal_True;
	}
	else
	{
		// nicht weg und gleich wieder hin
		if ( bStarted && pView->IsMarking( nPosX, nPosY, nTab ) )
		{
			// nix
		}
		else
		{
			pView->DoneBlockMode( sal_True );
			aAnchorPos.Set( nPosX, nPosY, nTab );
			ScMarkData& rMark = pViewData->GetMarkData();
			if ( rMark.IsMarked() || rMark.IsMultiMarked() )
			{
				pView->InitBlockMode( aAnchorPos.Col(), aAnchorPos.Row(),
										aAnchorPos.Tab(), sal_True );
				bStarted = sal_True;
			}
			else
				bStarted = sal_False;
		}
	}
	bAnchor = sal_True;
}

void __EXPORT ScViewFunctionSet::DestroyAnchor()
{
	sal_Bool bRefMode = SC_MOD()->IsFormulaMode();
	if (bRefMode)
		pViewData->GetView()->DoneRefMode( sal_True );
	else
		pViewData->GetView()->DoneBlockMode( sal_True );

	bAnchor = sal_False;
}

void ScViewFunctionSet::SetAnchorFlag( sal_Bool bSet )
{
	bAnchor = bSet;
}

sal_Bool __EXPORT ScViewFunctionSet::SetCursorAtPoint( const Point& rPointPixel, sal_Bool /* bDontSelectAtCursor */ )
{
	if ( bDidSwitch )
	{
		if ( rPointPixel == aSwitchPos )
			return sal_False;					// nicht auf falschem Fenster scrollen
		else
			bDidSwitch = sal_False;
	}
	aSwitchPos = rPointPixel;		// nur wichtig, wenn bDidSwitch

	//	treat position 0 as -1, so scrolling is always possible
	//	(with full screen and hidden headers, the top left border may be at 0)
	//	(moved from ScViewData::GetPosFromPixel)

	Point aEffPos = rPointPixel;
	if ( aEffPos.X() == 0 )
		aEffPos.X() = -1;
	if ( aEffPos.Y() == 0 )
		aEffPos.Y() = -1;

	//	Scrolling

	Size aWinSize = pEngine->GetWindow()->GetOutputSizePixel();
	sal_Bool bRightScroll  = ( aEffPos.X() >= aWinSize.Width() );
	sal_Bool bBottomScroll = ( aEffPos.Y() >= aWinSize.Height() );
	sal_Bool bNegScroll    = ( aEffPos.X() < 0 || aEffPos.Y() < 0 );
	sal_Bool bScroll = bRightScroll || bBottomScroll || bNegScroll;

	SCsCOL	nPosX;
	SCsROW	nPosY;
	pViewData->GetPosFromPixel( aEffPos.X(), aEffPos.Y(), GetWhich(),
								nPosX, nPosY, sal_True, sal_True );		// mit Repair

	//	fuer AutoFill in der Mitte der Zelle umschalten
	//	dabei aber nicht das Scrolling nach rechts/unten verhindern
	if ( pViewData->IsFillMode() || pViewData->GetFillMode() == SC_FILL_MATRIX )
	{
		sal_Bool bLeft, bTop;
		pViewData->GetMouseQuadrant( aEffPos, GetWhich(), nPosX, nPosY, bLeft, bTop );
		ScDocument* pDoc = pViewData->GetDocument();
		SCTAB nTab = pViewData->GetTabNo();
		if ( bLeft && !bRightScroll )
			do --nPosX; while ( nPosX>=0 && pDoc->ColHidden( nPosX, nTab ) );
		if ( bTop && !bBottomScroll )
        {
            if (--nPosY >= 0)
            {
                nPosY = pDoc->LastVisibleRow(0, nPosY, nTab);
                if (!ValidRow(nPosY))
                    nPosY = -1;
            }
        }
		//	negativ ist erlaubt
	}

	//	ueber Fixier-Grenze bewegt?

	ScSplitPos eWhich = GetWhich();
	if ( eWhich == pViewData->GetActivePart() )
	{
		if ( pViewData->GetHSplitMode() == SC_SPLIT_FIX )
			if ( aEffPos.X() >= aWinSize.Width() )
			{
				if ( eWhich == SC_SPLIT_TOPLEFT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_TOPRIGHT ), bScroll = sal_False, bDidSwitch = sal_True;
				else if ( eWhich == SC_SPLIT_BOTTOMLEFT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_BOTTOMRIGHT ), bScroll = sal_False, bDidSwitch = sal_True;
			}

		if ( pViewData->GetVSplitMode() == SC_SPLIT_FIX )
			if ( aEffPos.Y() >= aWinSize.Height() )
			{
				if ( eWhich == SC_SPLIT_TOPLEFT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_BOTTOMLEFT ), bScroll = sal_False, bDidSwitch = sal_True;
				else if ( eWhich == SC_SPLIT_TOPRIGHT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_BOTTOMRIGHT ), bScroll = sal_False, bDidSwitch = sal_True;
			}
	}

	pViewData->ResetOldCursor();
	return SetCursorAtCell( nPosX, nPosY, bScroll );
}

sal_Bool ScViewFunctionSet::SetCursorAtCell( SCsCOL nPosX, SCsROW nPosY, sal_Bool bScroll )
{
	ScTabView* pView = pViewData->GetView();
	SCTAB nTab = pViewData->GetTabNo();
    ScDocument* pDoc = pViewData->GetDocument();

    if ( pDoc->IsTabProtected(nTab) )
    {
        if (nPosX < 0 || nPosY < 0)
            return false;

        ScTableProtection* pProtect = pDoc->GetTabProtection(nTab);
        bool bSkipProtected   = !pProtect->isOptionEnabled(ScTableProtection::SELECT_LOCKED_CELLS);
        bool bSkipUnprotected = !pProtect->isOptionEnabled(ScTableProtection::SELECT_UNLOCKED_CELLS);

        if ( bSkipProtected && bSkipUnprotected )
            return sal_False;

        bool bCellProtected = pDoc->HasAttrib(nPosX, nPosY, nTab, nPosX, nPosY, nTab, HASATTR_PROTECTED);
        if ( (bCellProtected && bSkipProtected) || (!bCellProtected && bSkipUnprotected) )
            // Don't select this cell!
            return sal_False;
    }

	ScModule* pScMod = SC_MOD();
    ScTabViewShell* pViewShell = pViewData->GetViewShell();
    bool bRefMode = ( pViewShell ? pViewShell->IsRefInputMode() : false );

	sal_Bool bHide = !bRefMode && !pViewData->IsAnyFillMode() &&
			( nPosX != (SCsCOL) pViewData->GetCurX() || nPosY != (SCsROW) pViewData->GetCurY() );

	if (bHide)
		pView->HideAllCursors();

	if (bScroll)
	{
		if (bRefMode)
		{
			ScSplitPos eWhich = GetWhich();
			pView->AlignToCursor( nPosX, nPosY, SC_FOLLOW_LINE, &eWhich );
		}
		else
			pView->AlignToCursor( nPosX, nPosY, SC_FOLLOW_LINE );
	}

	if (bRefMode)
	{
		// #90910# if no input is possible from this doc, don't move the reference cursor around
		if ( !pScMod->IsModalMode(pViewData->GetSfxDocShell()) )
		{
			if (!bAnchor)
			{
				pView->DoneRefMode( sal_True );
				pView->InitRefMode( nPosX, nPosY, pViewData->GetTabNo(), SC_REFTYPE_REF );
			}

			pView->UpdateRef( nPosX, nPosY, pViewData->GetTabNo() );
			pView->SelectionChanged();
		}
	}
	else if (pViewData->IsFillMode() ||
			(pViewData->GetFillMode() == SC_FILL_MATRIX && (nScFillModeMouseModifier & KEY_MOD1) ))
	{
		//	Wenn eine Matrix angefasst wurde, kann mit Ctrl auf AutoFill zurueckgeschaltet werden

        SCCOL nStartX, nEndX;
        SCROW nStartY, nEndY; // Block
        SCTAB nDummy;
		pViewData->GetSimpleArea( nStartX, nStartY, nDummy, nEndX, nEndY, nDummy );

		if (pViewData->GetRefType() != SC_REFTYPE_FILL)
		{
			pView->InitRefMode( nStartX, nStartY, nTab, SC_REFTYPE_FILL );
			CreateAnchor();
		}

		ScRange aDelRange;
		sal_Bool bOldDelMark = pViewData->GetDelMark( aDelRange );

		if ( nPosX+1 >= (SCsCOL) nStartX && nPosX <= (SCsCOL) nEndX &&
			 nPosY+1 >= (SCsROW) nStartY && nPosY <= (SCsROW) nEndY &&
			 ( nPosX != nEndX || nPosY != nEndY ) )						// verkleinern ?
		{
			//	Richtung (links oder oben)

			long nSizeX = 0;
			for (SCCOL i=nPosX+1; i<=nEndX; i++)
				nSizeX += pDoc->GetColWidth( i, nTab );
			long nSizeY = (long) pDoc->GetRowHeight( nPosY+1, nEndY, nTab );

			SCCOL nDelStartX = nStartX;
			SCROW nDelStartY = nStartY;
			if ( nSizeX > nSizeY )
				nDelStartX = nPosX + 1;
			else
				nDelStartY = nPosY + 1;
			// 0 braucht nicht mehr getrennt abgefragt zu werden, weil nPosX/Y auch negativ wird

			if ( nDelStartX < nStartX )
				nDelStartX = nStartX;
			if ( nDelStartY < nStartY )
				nDelStartY = nStartY;

			//	Bereich setzen

			pViewData->SetDelMark( ScRange( nDelStartX,nDelStartY,nTab,
											nEndX,nEndY,nTab ) );
            pViewData->GetView()->UpdateShrinkOverlay();

#if 0
			if ( bOldDelMark )
			{
				ScUpdateRect aRect( aDelRange.aStart.Col(), aDelRange.aStart.Row(),
									aDelRange.aEnd.Col(), aDelRange.aEnd.Row() );
				aRect.SetNew( nDelStartX,nDelStartY, nEndX,nEndY );
				SCCOL nPaintStartX;
				SCROW nPaintStartY;
				SCCOL nPaintEndX;
				SCROW nPaintEndY;
				if (aRect.GetDiff( nPaintStartX, nPaintStartY, nPaintEndX, nPaintEndY ))
					pViewData->GetView()->
						PaintArea( nPaintStartX, nPaintStartY,
									nPaintEndX, nPaintEndY, SC_UPDATE_MARKS );
			}
			else
#endif
				pViewData->GetView()->
					PaintArea( nStartX,nDelStartY, nEndX,nEndY, SC_UPDATE_MARKS );

			nPosX = nEndX;		// roten Rahmen um ganzen Bereich lassen
			nPosY = nEndY;

			//	Referenz wieder richtigherum, falls unten umgedreht
			if ( nStartX != pViewData->GetRefStartX() || nStartY != pViewData->GetRefStartY() )
			{
				pViewData->GetView()->DoneRefMode();
				pViewData->GetView()->InitRefMode( nStartX, nStartY, nTab, SC_REFTYPE_FILL );
			}
		}
		else
		{
			if ( bOldDelMark )
			{
				pViewData->ResetDelMark();
                pViewData->GetView()->UpdateShrinkOverlay();

#if 0
				pViewData->GetView()->
					PaintArea( aDelRange.aStart.Col(), aDelRange.aStart.Row(),
							   aDelRange.aEnd.Col(), aDelRange.aEnd.Row(), SC_UPDATE_MARKS );
#endif
			}

			sal_Bool bNegX = ( nPosX < (SCsCOL) nStartX );
			sal_Bool bNegY = ( nPosY < (SCsROW) nStartY );

			long nSizeX = 0;
			if ( bNegX )
			{
				//	#94321# in SetCursorAtPoint hidden columns are skipped.
				//	They must be skipped here too, or the result will always be the first hidden column.
				do ++nPosX; while ( nPosX<nStartX && pDoc->ColHidden(nPosX, nTab) );
				for (SCCOL i=nPosX; i<nStartX; i++)
					nSizeX += pDoc->GetColWidth( i, nTab );
			}
			else
				for (SCCOL i=nEndX+1; i<=nPosX; i++)
					nSizeX += pDoc->GetColWidth( i, nTab );

			long nSizeY = 0;
			if ( bNegY )
			{
				//	#94321# in SetCursorAtPoint hidden rows are skipped.
				//	They must be skipped here too, or the result will always be the first hidden row.
                if (++nPosY < nStartY)
                {
                    nPosY = pDoc->FirstVisibleRow(nPosY, nStartY-1, nTab);
                    if (!ValidRow(nPosY))
                        nPosY = nStartY;
                }
                nSizeY += pDoc->GetRowHeight( nPosY, nStartY-1, nTab );
			}
			else
                nSizeY += pDoc->GetRowHeight( nEndY+1, nPosY, nTab );

			if ( nSizeX > nSizeY )			// Fill immer nur in einer Richtung
			{
				nPosY = nEndY;
				bNegY = sal_False;
			}
			else
			{
				nPosX = nEndX;
				bNegX = sal_False;
			}

			SCCOL nRefStX = bNegX ? nEndX : nStartX;
			SCROW nRefStY = bNegY ? nEndY : nStartY;
			if ( nRefStX != pViewData->GetRefStartX() || nRefStY != pViewData->GetRefStartY() )
			{
				pViewData->GetView()->DoneRefMode();
				pViewData->GetView()->InitRefMode( nRefStX, nRefStY, nTab, SC_REFTYPE_FILL );
			}
		}

		pView->UpdateRef( nPosX, nPosY, nTab );
	}
	else if (pViewData->IsAnyFillMode())
	{
		sal_uInt8 nMode = pViewData->GetFillMode();
		if ( nMode == SC_FILL_EMBED_LT || nMode == SC_FILL_EMBED_RB )
		{
			DBG_ASSERT( pDoc->IsEmbedded(), "!pDoc->IsEmbedded()" );
            ScRange aRange;
			pDoc->GetEmbedded( aRange);
			ScRefType eRefMode = (nMode == SC_FILL_EMBED_LT) ? SC_REFTYPE_EMBED_LT : SC_REFTYPE_EMBED_RB;
			if (pViewData->GetRefType() != eRefMode)
			{
				if ( nMode == SC_FILL_EMBED_LT )
					pView->InitRefMode( aRange.aEnd.Col(), aRange.aEnd.Row(), nTab, eRefMode );
				else
					pView->InitRefMode( aRange.aStart.Col(), aRange.aStart.Row(), nTab, eRefMode );
				CreateAnchor();
			}

			pView->UpdateRef( nPosX, nPosY, nTab );
		}
		else if ( nMode == SC_FILL_MATRIX )
		{
            SCCOL nStartX, nEndX;
            SCROW nStartY, nEndY; // Block
            SCTAB nDummy;
			pViewData->GetSimpleArea( nStartX, nStartY, nDummy, nEndX, nEndY, nDummy );

			if (pViewData->GetRefType() != SC_REFTYPE_FILL)
			{
				pView->InitRefMode( nStartX, nStartY, nTab, SC_REFTYPE_FILL );
				CreateAnchor();
			}

			if ( nPosX < nStartX ) nPosX = nStartX;
			if ( nPosY < nStartY ) nPosY = nStartY;

			pView->UpdateRef( nPosX, nPosY, nTab );
		}
		// else neue Modi
	}
	else					// normales Markieren
	{
		sal_Bool bHideCur = bAnchor && ( (SCCOL)nPosX != pViewData->GetCurX() ||
									 (SCROW)nPosY != pViewData->GetCurY() );
		if (bHideCur)
			pView->HideAllCursors();			// sonst zweimal: Block und SetCursor

		if (bAnchor)
		{
			if (!bStarted)
			{
				sal_Bool bMove = ( nPosX != (SCsCOL) aAnchorPos.Col() ||
								nPosY != (SCsROW) aAnchorPos.Row() );
				if ( bMove || ( pEngine && pEngine->GetMouseEvent().IsShift() ) )
				{
					pView->InitBlockMode( aAnchorPos.Col(), aAnchorPos.Row(),
											aAnchorPos.Tab(), sal_True );
					bStarted = sal_True;
				}
			}
			if (bStarted)
				pView->MarkCursor( (SCCOL) nPosX, (SCROW) nPosY, nTab, sal_False, sal_False, sal_True );
		}
		else
		{
			ScMarkData& rMark = pViewData->GetMarkData();
			if (rMark.IsMarked() || rMark.IsMultiMarked())
			{
				pView->DoneBlockMode(sal_True);
				pView->InitBlockMode( nPosX, nPosY, nTab, sal_True );
				pView->MarkCursor( (SCCOL) nPosX, (SCROW) nPosY, nTab );

				aAnchorPos.Set( nPosX, nPosY, nTab );
				bStarted = sal_True;
			}
			// #i3875# *Hack* When a new cell is Ctrl-clicked with no pre-selected cells,
			// it highlights that new cell as well as the old cell where the cursor is
			// positioned prior to the click.  A selection mode via Shift-F8 should also
			// follow the same behavior.
			else if ( pViewData->IsSelCtrlMouseClick() )
			{
				SCCOL nOldX = pViewData->GetCurX();
				SCROW nOldY = pViewData->GetCurY();

				pView->InitBlockMode( nOldX, nOldY, nTab, sal_True );
				pView->MarkCursor( (SCCOL) nOldX, (SCROW) nOldY, nTab );

				if ( nOldX != nPosX || nOldY != nPosY )
				{
					pView->DoneBlockMode( sal_True );
					pView->InitBlockMode( nPosX, nPosY, nTab, sal_True );
					pView->MarkCursor( (SCCOL) nPosX, (SCROW) nPosY, nTab );
					aAnchorPos.Set( nPosX, nPosY, nTab );
				}

				bStarted = sal_True;
			}
		}

		pView->SetCursor( (SCCOL) nPosX, (SCROW) nPosY );
		pViewData->SetRefStart( nPosX, nPosY, nTab );
		if (bHideCur)
			pView->ShowAllCursors();
	}

	if (bHide)
		pView->ShowAllCursors();

	return sal_True;
}

sal_Bool __EXPORT ScViewFunctionSet::IsSelectionAtPoint( const Point& rPointPixel )
{
	sal_Bool bRefMode = SC_MOD()->IsFormulaMode();
	if (bRefMode)
		return sal_False;

	if (pViewData->IsAnyFillMode())
		return sal_False;

	ScMarkData& rMark = pViewData->GetMarkData();
	if (bAnchor || !rMark.IsMultiMarked())
	{
		SCsCOL	nPosX;
		SCsROW	nPosY;
		pViewData->GetPosFromPixel( rPointPixel.X(), rPointPixel.Y(), GetWhich(), nPosX, nPosY );
		return pViewData->GetMarkData().IsCellMarked( (SCCOL) nPosX, (SCROW) nPosY );
	}

	return sal_False;
}

void __EXPORT ScViewFunctionSet::DeselectAtPoint( const Point& /* rPointPixel */ )
{
	//	gibt's nicht
}

void __EXPORT ScViewFunctionSet::DeselectAll()
{
	if (pViewData->IsAnyFillMode())
		return;

	sal_Bool bRefMode = SC_MOD()->IsFormulaMode();
	if (bRefMode)
	{
		pViewData->GetView()->DoneRefMode( sal_False );
	}
	else
	{
		pViewData->GetView()->DoneBlockMode( sal_False );
		pViewData->GetViewShell()->UpdateInputHandler();
	}

	bAnchor = sal_False;
}

//------------------------------------------------------------------------

ScViewSelectionEngine::ScViewSelectionEngine( Window* pWindow, ScTabView* pView,
												ScSplitPos eSplitPos ) :
		SelectionEngine( pWindow, pView->GetFunctionSet() ),
		eWhich( eSplitPos )
{
	//	Parameter einstellen
	SetSelectionMode( MULTIPLE_SELECTION );
	EnableDrag( sal_True );
}


//------------------------------------------------------------------------

//
//					Spalten- / Zeilenheader
//

ScHeaderFunctionSet::ScHeaderFunctionSet( ScViewData* pNewViewData ) :
		pViewData( pNewViewData ),
		bColumn( sal_False ),
		eWhich( SC_SPLIT_TOPLEFT ),
		bAnchor( sal_False ),
		nCursorPos( 0 )
{
	DBG_ASSERT(pViewData, "ViewData==0 bei FunctionSet");
}

void ScHeaderFunctionSet::SetColumn( sal_Bool bSet )
{
	bColumn = bSet;
}

void ScHeaderFunctionSet::SetWhich( ScSplitPos eNew )
{
	eWhich = eNew;
}

void __EXPORT ScHeaderFunctionSet::BeginDrag()
{
	// gippsnich
}

void __EXPORT ScHeaderFunctionSet::CreateAnchor()
{
	if (bAnchor)
		return;

	ScTabView* pView = pViewData->GetView();
	pView->DoneBlockMode( sal_True );
	if (bColumn)
	{
		pView->InitBlockMode( static_cast<SCCOL>(nCursorPos), 0, pViewData->GetTabNo(), sal_True, sal_True, sal_False );
		pView->MarkCursor( static_cast<SCCOL>(nCursorPos), MAXROW, pViewData->GetTabNo() );
	}
	else
	{
		pView->InitBlockMode( 0, nCursorPos, pViewData->GetTabNo(), sal_True, sal_False, sal_True );
		pView->MarkCursor( MAXCOL, nCursorPos, pViewData->GetTabNo() );
	}
	bAnchor = sal_True;
}

void __EXPORT ScHeaderFunctionSet::DestroyAnchor()
{
	pViewData->GetView()->DoneBlockMode( sal_True );
	bAnchor = sal_False;
}

sal_Bool __EXPORT ScHeaderFunctionSet::SetCursorAtPoint( const Point& rPointPixel, sal_Bool /* bDontSelectAtCursor */ )
{
	if ( bDidSwitch )
	{
		//	die naechste gueltige Position muss vom anderen Fenster kommen
		if ( rPointPixel == aSwitchPos )
			return sal_False;					// nicht auf falschem Fenster scrollen
		else
			bDidSwitch = sal_False;
	}

	//	Scrolling

	Size aWinSize = pViewData->GetActiveWin()->GetOutputSizePixel();
	sal_Bool bScroll;
	if (bColumn)
		bScroll = ( rPointPixel.X() < 0 || rPointPixel.X() >= aWinSize.Width() );
	else
		bScroll = ( rPointPixel.Y() < 0 || rPointPixel.Y() >= aWinSize.Height() );

	//	ueber Fixier-Grenze bewegt?

	sal_Bool bSwitched = sal_False;
	if ( bColumn )
	{
		if ( pViewData->GetHSplitMode() == SC_SPLIT_FIX )
		{
			if ( rPointPixel.X() > aWinSize.Width() )
			{
				if ( eWhich == SC_SPLIT_TOPLEFT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_TOPRIGHT ), bSwitched = sal_True;
				else if ( eWhich == SC_SPLIT_BOTTOMLEFT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_BOTTOMRIGHT ), bSwitched = sal_True;
			}
		}
	}
	else				// Zeilenkoepfe
	{
		if ( pViewData->GetVSplitMode() == SC_SPLIT_FIX )
		{
			if ( rPointPixel.Y() > aWinSize.Height() )
			{
				if ( eWhich == SC_SPLIT_TOPLEFT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_BOTTOMLEFT ), bSwitched = sal_True;
				else if ( eWhich == SC_SPLIT_TOPRIGHT )
					pViewData->GetView()->ActivatePart( SC_SPLIT_BOTTOMRIGHT ), bSwitched = sal_True;
			}
		}
	}
	if (bSwitched)
	{
		aSwitchPos = rPointPixel;
		bDidSwitch = sal_True;
		return sal_False;				// nicht mit falschen Positionen rechnen
	}

	//

	SCsCOL	nPosX;
	SCsROW	nPosY;
	pViewData->GetPosFromPixel( rPointPixel.X(), rPointPixel.Y(), pViewData->GetActivePart(),
								nPosX, nPosY, sal_False );
	if (bColumn)
	{
		nCursorPos = static_cast<SCCOLROW>(nPosX);
		nPosY = pViewData->GetPosY(WhichV(pViewData->GetActivePart()));
	}
	else
	{
		nCursorPos = static_cast<SCCOLROW>(nPosY);
		nPosX = pViewData->GetPosX(WhichH(pViewData->GetActivePart()));
	}

	ScTabView* pView = pViewData->GetView();
	sal_Bool bHide = pViewData->GetCurX() != nPosX ||
				 pViewData->GetCurY() != nPosY;
	if (bHide)
		pView->HideAllCursors();

	if (bScroll)
		pView->AlignToCursor( nPosX, nPosY, SC_FOLLOW_LINE );
	pView->SetCursor( nPosX, nPosY );

	if ( !bAnchor || !pView->IsBlockMode() )
	{
		pView->DoneBlockMode( sal_True );
		pViewData->GetMarkData().MarkToMulti();			//! wer verstellt das ???
		pView->InitBlockMode( nPosX, nPosY, pViewData->GetTabNo(), sal_True, bColumn, !bColumn );

		bAnchor = sal_True;
	}

	pView->MarkCursor( nPosX, nPosY, pViewData->GetTabNo(), bColumn, !bColumn );

	//	SelectionChanged innerhalb von HideCursor wegen UpdateAutoFillMark
	pView->SelectionChanged();

	if (bHide)
		pView->ShowAllCursors();

	return sal_True;
}

sal_Bool __EXPORT ScHeaderFunctionSet::IsSelectionAtPoint( const Point& rPointPixel )
{
	SCsCOL	nPosX;
	SCsROW	nPosY;
	pViewData->GetPosFromPixel( rPointPixel.X(), rPointPixel.Y(), pViewData->GetActivePart(),
								nPosX, nPosY, sal_False );

	ScMarkData& rMark = pViewData->GetMarkData();
	if (bColumn)
		return rMark.IsColumnMarked( nPosX );
	else
		return rMark.IsRowMarked( nPosY );
}

void __EXPORT ScHeaderFunctionSet::DeselectAtPoint( const Point& /* rPointPixel */ )
{
}

void __EXPORT ScHeaderFunctionSet::DeselectAll()
{
	pViewData->GetView()->DoneBlockMode( sal_False );
	bAnchor = sal_False;
}

//------------------------------------------------------------------------

ScHeaderSelectionEngine::ScHeaderSelectionEngine( Window* pWindow, ScHeaderFunctionSet* pFuncSet ) :
		SelectionEngine( pWindow, pFuncSet )
{
	//	Parameter einstellen
	SetSelectionMode( MULTIPLE_SELECTION );
	EnableDrag( sal_False );
}