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libreoffice/svx/source/table/cellcursor.cxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

546 lines
16 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include <sal/config.h>
#include <com/sun/star/lang/NoSupportException.hpp>
#include <svx/svdotable.hxx>
#include "cellcursor.hxx"
#include "tablelayouter.hxx"
#include <cell.hxx>
#include <svx/svdmodel.hxx>
#include <svx/strings.hrc>
#include <svx/dialmgr.hxx>
#include <tools/debug.hxx>
#include <comphelper/diagnose_ex.hxx>
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::table;
namespace sdr::table {
CellCursor::CellCursor( const TableModelRef & xTable, sal_Int32 nLeft, sal_Int32 nTop, sal_Int32 nRight, sal_Int32 nBottom )
: CellCursorBase( xTable, nLeft, nTop, nRight, nBottom )
{
}
CellCursor::~CellCursor()
{
}
// XCellCursor
Reference< XCell > SAL_CALL CellCursor::getCellByPosition( sal_Int32 nColumn, sal_Int32 nRow )
{
return CellRange::getCellByPosition( nColumn, nRow );
}
Reference< XCellRange > SAL_CALL CellCursor::getCellRangeByPosition( sal_Int32 nLeft, sal_Int32 nTop, sal_Int32 nRight, sal_Int32 nBottom )
{
return CellRange::getCellRangeByPosition( nLeft, nTop, nRight, nBottom );
}
Reference< XCellRange > SAL_CALL CellCursor::getCellRangeByName( const OUString& aRange )
{
return CellRange::getCellRangeByName( aRange );
}
// XCellCursor
void SAL_CALL CellCursor::gotoStart( )
{
mnRight = mnLeft;
mnBottom = mnTop;
}
void SAL_CALL CellCursor::gotoEnd( )
{
mnLeft = mnRight;
mnTop = mnBottom;
}
void SAL_CALL CellCursor::gotoNext( )
{
if( mxTable.is() )
{
mnRight++;
if( mnRight >= mxTable->getColumnCount() )
{
// if we past the last column, try skip to the row line
mnTop++;
if( mnTop >= mxTable->getRowCount() )
{
// if we past the last row, do not move cursor at all
mnTop--;
mnRight--;
}
else
{
// restart at the first column on the next row
mnRight = 0;
}
}
}
mnLeft = mnRight;
mnTop = mnBottom;
}
void SAL_CALL CellCursor::gotoPrevious( )
{
if( mxTable.is() )
{
if( mnLeft > 0 )
{
--mnLeft;
}
else if( mnTop > 0 )
{
--mnTop;
mnLeft = mxTable->getColumnCount() - 1;
}
}
mnRight = mnLeft;
mnBottom = mnTop;
}
void SAL_CALL CellCursor::gotoOffset( ::sal_Int32 nColumnOffset, ::sal_Int32 nRowOffset )
{
if( mxTable.is() )
{
const sal_Int32 nLeft = mnLeft + nColumnOffset;
if( (nLeft >= 0) && (nLeft < mxTable->getColumnCount() ) )
mnRight = mnLeft = nLeft;
const sal_Int32 nTop = mnTop + nRowOffset;
if( (nTop >= 0) && (nTop < mxTable->getRowCount()) )
mnTop = mnBottom = nTop;
}
}
// XMergeableCellCursor
/** returns true and the merged cell positions if a merge is valid or false if a merge is
not valid for that range */
bool CellCursor::GetMergedSelection( CellPos& rStart, CellPos& rEnd )
{
rStart.mnCol = mnLeft; rStart.mnRow = mnTop;
rEnd.mnCol = mnRight; rEnd.mnRow = mnBottom;
// single cell merge is never valid
if( mxTable.is() && ((mnLeft != mnRight) || (mnTop != mnBottom)) ) try
{
CellRef xCell = mxTable->getCell( mnLeft, mnTop );
// check if first cell is merged
if( xCell.is() && xCell->isMerged() )
findMergeOrigin( mxTable, mnLeft, mnTop, rStart.mnCol, rStart.mnRow );
// check if last cell is merged
xCell = mxTable->getCell( mnRight, mnBottom );
if( xCell.is() )
{
if( xCell->isMerged() )
{
findMergeOrigin( mxTable, mnRight, mnBottom, rEnd.mnCol, rEnd.mnRow );
// merge not possible if selection is only one cell and all its merges
if( rEnd == rStart )
return false;
xCell = mxTable->getCell( rEnd.mnCol, rEnd.mnRow );
}
}
if( xCell.is() )
{
rEnd.mnCol += xCell->getColumnSpan()-1;
rEnd.mnRow += xCell->getRowSpan()-1;
}
// now check if everything is inside the given bounds
sal_Int32 nRow, nCol;
for( nRow = rStart.mnRow; nRow <= rEnd.mnRow; nRow++ )
{
for( nCol = rStart.mnCol; nCol <= rEnd.mnCol; nCol++ )
{
xCell = mxTable->getCell( nCol, nRow );
if( !xCell.is() )
continue;
if( xCell->isMerged() )
{
sal_Int32 nOriginCol, nOriginRow;
if( findMergeOrigin( mxTable, nCol, nRow, nOriginCol, nOriginRow ) )
{
if( (nOriginCol < rStart.mnCol) || (nOriginRow < rStart.mnRow) )
return false;
xCell = mxTable->getCell( nOriginCol, nOriginRow );
if( xCell.is() )
{
nOriginCol += xCell->getColumnSpan()-1;
nOriginRow += xCell->getRowSpan()-1;
if( (nOriginCol > rEnd.mnCol) || (nOriginRow > rEnd.mnRow) )
return false;
}
}
}
else if( ((nCol + xCell->getColumnSpan() - 1) > rEnd.mnCol) || ((nRow + xCell->getRowSpan() - 1 ) > rEnd.mnRow) )
{
return false;
}
}
}
return true;
}
catch( Exception& )
{
TOOLS_WARN_EXCEPTION("svx.table", "");
}
return false;
}
void SAL_CALL CellCursor::merge( )
{
CellPos aStart, aEnd;
if( !GetMergedSelection( aStart, aEnd ) )
throw NoSupportException();
if( !mxTable.is() || (mxTable->getSdrTableObj() == nullptr) )
throw DisposedException();
SdrModel& rModel(mxTable->getSdrTableObj()->getSdrModelFromSdrObject());
const bool bUndo(mxTable->getSdrTableObj()->IsInserted() && rModel.IsUndoEnabled());
if( bUndo )
rModel.BegUndo( SvxResId(STR_TABLE_MERGE) );
try
{
mxTable->merge( aStart.mnCol, aStart.mnRow, aEnd.mnCol - aStart.mnCol + 1, aEnd.mnRow - aStart.mnRow + 1 );
mxTable->optimize();
mxTable->setModified(true);
}
catch( Exception& )
{
TOOLS_WARN_EXCEPTION("svx.table", "");
}
if( bUndo )
rModel.EndUndo();
rModel.SetChanged();
}
void CellCursor::split_column( sal_Int32 nCol, sal_Int32 nColumns, std::vector< sal_Int32 >& rLeftOvers )
{
const sal_Int32 nRowCount = mxTable->getRowCount();
sal_Int32 nNewCols = 0, nRow;
// first check how many columns we need to add
for( nRow = mnTop; nRow <= mnBottom; ++nRow )
{
CellRef xCell = mxTable->getCell( nCol, nRow );
if( xCell.is() && !xCell->isMerged() )
nNewCols = std::max( nNewCols, nColumns - xCell->getColumnSpan() + 1 - rLeftOvers[nRow] );
}
if( nNewCols > 0 )
{
static constexpr OUString sWidth(u"Width"_ustr);
Reference< XTableColumns > xCols( mxTable->getColumns(), UNO_SET_THROW );
Reference< XPropertySet > xRefColumn( xCols->getByIndex( nCol ), UNO_QUERY_THROW );
sal_Int32 nWidth = 0;
xRefColumn->getPropertyValue( sWidth ) >>= nWidth;
const sal_Int32 nNewWidth = nWidth / (nNewCols + 1);
// reference column gets new width + rounding errors
xRefColumn->setPropertyValue( sWidth, Any( nWidth - (nNewWidth * nNewCols) ) );
xCols->insertByIndex( nCol + 1, nNewCols );
mnRight += nNewCols;
// distribute new width
for( sal_Int32 nNewCol = nCol + nNewCols; nNewCol > nCol; --nNewCol )
{
Reference< XPropertySet > xNewCol( xCols->getByIndex( nNewCol ), UNO_QUERY_THROW );
xNewCol->setPropertyValue( sWidth, Any( nNewWidth ) );
}
}
for( nRow = 0; nRow < nRowCount; ++nRow )
{
CellRef xCell = mxTable->getCell( nCol, nRow );
if( !xCell.is() || xCell->isMerged() )
{
if( nNewCols > 0 )
{
// merged cells are ignored, but newly added columns will be added to leftovers
xCell = mxTable->getCell( nCol+1, nRow );
if( !xCell.is() || !xCell->isMerged() )
rLeftOvers[nRow] += nNewCols;
}
}
else
{
sal_Int32 nRowSpan = xCell->getRowSpan() - 1;
sal_Int32 nColSpan = xCell->getColumnSpan() - 1;
if( (nRow >= mnTop) && (nRow <= mnBottom) )
{
sal_Int32 nCellsAvailable = 1 + nColSpan + rLeftOvers[nRow];
if( nColSpan == 0 )
nCellsAvailable += nNewCols;
DBG_ASSERT( nCellsAvailable > nColumns, "sdr::table::CellCursor::split_column(), somethings wrong" );
sal_Int32 nSplitSpan = (nCellsAvailable / (nColumns + 1)) - 1;
sal_Int32 nSplitCol = nCol;
sal_Int32 nSplits = nColumns + 1;
while( nSplits-- )
{
// last split eats rounding cells
if( nSplits == 0 )
nSplitSpan = nCellsAvailable - ((nSplitSpan+1) * nColumns) - 1;
mxTable->merge( nSplitCol, nRow, nSplitSpan + 1, nRowSpan + 1);
if( nSplits > 0 )
nSplitCol += nSplitSpan + 1;
}
do
{
rLeftOvers[nRow++] = 0;
}
while( nRowSpan-- );
--nRow;
}
else
{
// cope with outside cells, merge if needed
if( nColSpan < (rLeftOvers[nRow] + nNewCols) )
mxTable->merge( nCol, nRow, (rLeftOvers[nRow] + nNewCols) + 1, nRowSpan + 1 );
do
{
rLeftOvers[nRow++] = 0; // consumed
}
while( nRowSpan-- );
--nRow;
}
}
}
}
void CellCursor::split_horizontal( sal_Int32 nColumns )
{
const sal_Int32 nRowCount = mxTable->getRowCount();
std::vector< sal_Int32 > aLeftOvers( nRowCount );
for( sal_Int32 nCol = mnRight; nCol >= mnLeft; --nCol )
split_column( nCol, nColumns, aLeftOvers );
}
void CellCursor::split_row( sal_Int32 nRow, sal_Int32 nRows, std::vector< sal_Int32 >& rLeftOvers )
{
const sal_Int32 nColCount = mxTable->getColumnCount();
sal_Int32 nNewRows = 0, nCol;
// first check how many columns we need to add
for( nCol = mnLeft; nCol <= mnRight; ++nCol )
{
CellRef xCell = mxTable->getCell( nCol, nRow );
if( xCell.is() && !xCell->isMerged() )
nNewRows = std::max( nNewRows, nRows - xCell->getRowSpan() + 1 - rLeftOvers[nCol] );
}
if( nNewRows > 0 )
{
static constexpr OUString sHeight(u"Height"_ustr);
Reference< XTableRows > xRows( mxTable->getRows(), UNO_SET_THROW );
Reference< XPropertySet > xRefRow( xRows->getByIndex( nRow ), UNO_QUERY_THROW );
sal_Int32 nHeight = 0;
xRefRow->getPropertyValue( sHeight ) >>= nHeight;
const sal_Int32 nNewHeight = nHeight / (nNewRows + 1);
// reference row gets new height + rounding errors
xRefRow->setPropertyValue( sHeight, Any( nHeight - (nNewHeight * nNewRows) ) );
xRows->insertByIndex( nRow + 1, nNewRows );
mnBottom += nNewRows;
// distribute new width
for( sal_Int32 nNewRow = nRow + nNewRows; nNewRow > nRow; --nNewRow )
{
Reference< XPropertySet > xNewRow( xRows->getByIndex( nNewRow ), UNO_QUERY_THROW );
xNewRow->setPropertyValue( sHeight, Any( nNewHeight ) );
}
}
for( nCol = 0; nCol < nColCount; ++nCol )
{
CellRef xCell = mxTable->getCell( nCol, nRow );
if( !xCell.is() || xCell->isMerged() )
{
if( nNewRows )
{
// merged cells are ignored, but newly added columns will be added to leftovers
xCell = mxTable->getCell( nCol, nRow+1 );
if( !xCell.is() || !xCell->isMerged() )
rLeftOvers[nCol] += nNewRows;
}
}
else
{
sal_Int32 nRowSpan = xCell->getRowSpan() - 1;
sal_Int32 nColSpan = xCell->getColumnSpan() - 1;
if( (nCol >= mnLeft) && (nCol <= mnRight) )
{
sal_Int32 nCellsAvailable = 1 + nRowSpan + rLeftOvers[nCol];
if( nRowSpan == 0 )
nCellsAvailable += nNewRows;
DBG_ASSERT( nCellsAvailable > nRows, "sdr::table::CellCursor::split_row(), somethings wrong" );
sal_Int32 nSplitSpan = (nCellsAvailable / (nRows + 1)) - 1;
sal_Int32 nSplitRow = nRow;
sal_Int32 nSplits = nRows + 1;
while( nSplits-- )
{
// last split eats rounding cells
if( nSplits == 0 )
nSplitSpan = nCellsAvailable - ((nSplitSpan+1) * nRows) - 1;
mxTable->merge( nCol, nSplitRow, nColSpan + 1, nSplitSpan + 1 );
if( nSplits > 0 )
nSplitRow += nSplitSpan + 1;
}
do
{
rLeftOvers[nCol++] = 0;
}
while( nColSpan-- );
--nCol;
}
else
{
// cope with outside cells, merge if needed
if( nRowSpan < (rLeftOvers[nCol] + nNewRows) )
mxTable->merge( nCol, nRow, nColSpan + 1, (rLeftOvers[nCol] + nNewRows) + 1 );
do
{
rLeftOvers[nCol++] = 0; // consumed
}
while( nColSpan-- );
--nCol;
}
}
}
}
void CellCursor::split_vertical( sal_Int32 nRows )
{
const sal_Int32 nColCount = mxTable->getColumnCount();
std::vector< sal_Int32 > aLeftOvers( nColCount );
for( sal_Int32 nRow = mnBottom; nRow >= mnTop; --nRow )
split_row( nRow, nRows, aLeftOvers );
}
void SAL_CALL CellCursor::split( sal_Int32 nColumns, sal_Int32 nRows )
{
if( (nColumns < 0) || (nRows < 0) )
throw IllegalArgumentException();
if( !mxTable.is() || (mxTable->getSdrTableObj() == nullptr) )
throw DisposedException();
SdrModel& rModel(mxTable->getSdrTableObj()->getSdrModelFromSdrObject());
const bool bUndo(mxTable->getSdrTableObj()->IsInserted() && rModel.IsUndoEnabled());
if( bUndo )
rModel.BegUndo( SvxResId(STR_TABLE_SPLIT) );
try
{
if( nColumns > 0 )
split_horizontal( nColumns );
if( nRows > 0 )
split_vertical( nRows );
if( nColumns > 0 ||nRows > 0 )
mxTable->setModified(true);
}
catch( Exception& )
{
TOOLS_WARN_EXCEPTION("svx.table", "");
throw NoSupportException();
}
if( bUndo )
rModel.EndUndo();
rModel.SetChanged();
}
sal_Bool SAL_CALL CellCursor::isMergeable( )
{
CellPos aStart, aEnd;
return GetMergedSelection( aStart, aEnd );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */