/*********************************************************************
*
* Copyright (C) 2002 Andrew Khan
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***************************************************************************/
package jxl.read.biff;
import jxl.common.Logger;
import jxl.Cell;
import jxl.CellFeatures;
import jxl.CellType;
import jxl.biff.FormattingRecords;
import jxl.format.CellFormat;
/**
* A blank cell value, initialized indirectly from a multiple biff record
* rather than directly from the binary data
*/
class MulBlankCell implements Cell, CellFeaturesAccessor
{
/**
* The logger
*/
private static Logger logger = Logger.getLogger(MulBlankCell.class);
/**
* The row containing this blank
*/
private int row;
/**
* The column containing this blank
*/
private int column;
/**
* The raw cell format
*/
private CellFormat cellFormat;
/**
* The index to the XF Record
*/
private int xfIndex;
/**
* A handle to the formatting records
*/
private FormattingRecords formattingRecords;
/**
* A flag to indicate whether this object's formatting things have
* been initialized
*/
private boolean initialized;
/**
* A handle to the sheet
*/
private SheetImpl sheet;
/**
* The cell features
*/
private CellFeatures features;
/**
* Constructs this cell
*
* @param r the zero based row
* @param c the zero base column
* @param xfi the xf index
* @param fr the formatting records
* @param si the sheet
*/
public MulBlankCell(int r, int c,
int xfi,
FormattingRecords fr,
SheetImpl si)
{
row = r;
column = c;
xfIndex = xfi;
formattingRecords = fr;
sheet = si;
initialized = false;
}
/**
* Accessor for the row
*
* @return the zero based row
*/
public final int getRow()
{
return row;
}
/**
* Accessor for the column
*
* @return the zero based column
*/
public final int getColumn()
{
return column;
}
/**
* Accessor for the contents as a string
*
* @return the value as a string
*/
public String getContents()
{
return "";
}
/**
* Accessor for the cell type
*
* @return the cell type
*/
public CellType getType()
{
return CellType.EMPTY;
}
/**
* Gets the cell format for this cell
*
* @return the cell format for these cells
*/
public CellFormat getCellFormat()
{
if (!initialized)
{
cellFormat = formattingRecords.getXFRecord(xfIndex);
initialized = true;
}
return cellFormat;
}
/**
* Determines whether or not this cell has been hidden
*
* @return TRUE if this cell has been hidden, FALSE otherwise
*/
public boolean isHidden()
{
ColumnInfoRecord cir = sheet.getColumnInfo(column);
if (cir != null && cir.getWidth() == 0)
{
return true;
}
RowRecord rr = sheet.getRowInfo(row);
if (rr != null && (rr.getRowHeight() == 0 || rr.isCollapsed()))
{
return true;
}
return false;
}
/**
* Accessor for the cell features
*
* @return the cell features or NULL if this cell doesn't have any
*/
public CellFeatures getCellFeatures()
{
return features;
}
/**
* Sets the cell features during the reading process
*
* @param cf the cell features
*/
public void setCellFeatures(CellFeatures cf)
{
if (features != null)
{
logger.warn("current cell features not null - overwriting");
}
features = cf;
}
}
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