/**
* This method process the cells in a <code>Document</code> and generates a portion of the <code>
* Document</code>.
*
* <p>This method assumes that records are sorted by row and then column.
*
* @param root The <code>Node</code> of the <code>Document</code> we are building that we will
* append our cell <code>Node</code> objects. This <code>Node</code> should be a TAG_TABLE
* tag.
* @throws IOException If any I/O error occurs.
*/
protected void processCells(Node root) throws IOException {
// The current row element
Element rowElement = null;
// The current cell element
Element cellElement = null;
// The row number - we may not have any rows (empty sheet)
// so set to zero.
int row = 0;
// The column number - This is the expected column number of
// the next cell we are reading.
int col = 1;
// The number of columns in the spreadsheet
int lastColumn = decoder.getNumberOfColumns();
Node autoStylesNode = null;
// Loop over all cells in the spreadsheet
while (decoder.goToNextCell()) {
// Get the row number
int newRow = decoder.getRowNumber();
// Is the cell in a new row, or part of the current row?
if (newRow != row) {
// Make sure that all the cells in the previous row
// have been entered.
if (col <= lastColumn && rowElement != null) {
int numSkippedCells = lastColumn - col + 1;
addEmptyCells(numSkippedCells, rowElement);
}
// log an end row - if we already have a row
if (row != 0) {
Debug.log(Debug.TRACE, "</tr>");
}
// How far is the new row from the last row?
int deltaRows = newRow - row;
// Check if we have skipped any rows
if (deltaRows > 1) {
// Add in empty rows
addEmptyRows(deltaRows - 1, root, lastColumn);
}
// Re-initialize column (since we are in a new row)
col = 1;
// Create an element node for the new row
rowElement = doc.createElement(TAG_TABLE_ROW);
for (Iterator<ColumnRowInfo> e = decoder.getColumnRowInfos(); e.hasNext(); ) {
ColumnRowInfo cri = e.next();
if (cri.isRow() && cri.getRepeated() == newRow - 1) {
// We have the correct Row BIFFRecord for this row
RowStyle rStyle =
new RowStyle(
"Default",
SxcConstants.ROW_STYLE_FAMILY,
SxcConstants.DEFAULT_STYLE,
cri.getSize(),
null);
Style result[] = styleCat.getMatching(rStyle);
String styleName;
if (result.length == 0) {
rStyle.setName("ro" + rowStyles++);
styleName = rStyle.getName();
Debug.log(Debug.TRACE, "No existing style found, adding " + styleName);
styleCat.add(rStyle);
} else {
RowStyle existingStyle = (RowStyle) result[0];
styleName = existingStyle.getName();
Debug.log(Debug.TRACE, "Existing style found : " + styleName);
}
rowElement.setAttribute(ATTRIBUTE_TABLE_STYLE_NAME, styleName);
// For now we will not use the repeat column attribute
}
}
// Append the row element to the root node
root.appendChild(rowElement);
// Update row number
row = newRow;
Debug.log(Debug.TRACE, "<tr>");
}
// Get the column number of the current cell
int newCol = decoder.getColNumber();
// Check to see if some columns were skipped
if (newCol != col) {
// How many columns have we skipped?
int numColsSkipped = newCol - col;
addEmptyCells(numColsSkipped, rowElement);
// Update the column number to account for the
// skipped cells
col = newCol;
}
// Lets start dealing with the cell data
Debug.log(Debug.TRACE, "<td>");
// Get the cell's contents
String cellContents = decoder.getCellContents();
// Get the type of the data in the cell
String cellType = decoder.getCellDataType();
// Get the cell format
Format fmt = decoder.getCellFormat();
// Create an element node for the cell
cellElement = doc.createElement(TAG_TABLE_CELL);
Node bodyNode = doc.getElementsByTagName(TAG_OFFICE_BODY).item(0);
// Not every document has an automatic style tag
autoStylesNode = doc.getElementsByTagName(TAG_OFFICE_AUTOMATIC_STYLES).item(0);
if (autoStylesNode == null) {
autoStylesNode = doc.createElement(TAG_OFFICE_AUTOMATIC_STYLES);
doc.insertBefore(autoStylesNode, bodyNode);
}
CellStyle tStyle =
new CellStyle(
"Default",
SxcConstants.TABLE_CELL_STYLE_FAMILY,
SxcConstants.DEFAULT_STYLE,
fmt,
null);
String styleName;
Style result[] = styleCat.getMatching(tStyle);
if (result.length == 0) {
tStyle.setName("ce" + textStyles++);
styleName = tStyle.getName();
Debug.log(Debug.TRACE, "No existing style found, adding " + styleName);
styleCat.add(tStyle);
} else {
CellStyle existingStyle = (CellStyle) result[0];
styleName = existingStyle.getName();
Debug.log(Debug.TRACE, "Existing style found : " + styleName);
}
cellElement.setAttribute(ATTRIBUTE_TABLE_STYLE_NAME, styleName);
// Store the cell data into the appropriate attributes
processCellData(cellElement, cellType, cellContents);
// Append the cell element to the row node
rowElement.appendChild(cellElement);
// Append the cellContents as a text node
Element textElement = doc.createElement(TAG_PARAGRAPH);
cellElement.appendChild(textElement);
textElement.appendChild(doc.createTextNode(cellContents));
Debug.log(Debug.TRACE, cellContents);
Debug.log(Debug.TRACE, "</td>");
// Increment to the column number of the next expected cell
col++;
}
// Make sure that the last row is padded correctly
if (col <= lastColumn && rowElement != null) {
int numSkippedCells = lastColumn - col + 1;
addEmptyCells(numSkippedCells, rowElement);
}
// Now write the style catalog to the document
if (autoStylesNode != null) {
Debug.log(Debug.TRACE, "Well the autostyle node was found!!!");
NodeList nl = styleCat.writeNode(doc, "dummy").getChildNodes();
int nlLen = nl.getLength(); // nl.item reduces the length
for (int i = 0; i < nlLen; i++) {
autoStylesNode.appendChild(nl.item(0));
}
}
if (row != 0) {
// The sheet does have rows, so write out a /tr
Debug.log(Debug.TRACE, "</tr>");
}
}
