private Object evaluateCellFormula(final HSSFWorkbook workbook, final Cell cell) {
FormulaEvaluator evaluator = workbook.getCreationHelper().createFormulaEvaluator();
CellValue cellValue = evaluator.evaluate(cell);
Object result = null;
if (cellValue.getCellType() == Cell.CELL_TYPE_BOOLEAN) {
result = cellValue.getBooleanValue();
} else if (cellValue.getCellType() == Cell.CELL_TYPE_NUMERIC) {
result = cellValue.getNumberValue();
} else if (cellValue.getCellType() == Cell.CELL_TYPE_STRING) {
result = cellValue.getStringValue();
}
return result;
}
private Collection<Object[]> loadFromSpreadsheet(final InputStream excelFile) throws IOException {
HSSFWorkbook workbook = new HSSFWorkbook(excelFile);
data = new ArrayList<Object[]>();
Sheet sheet = workbook.getSheetAt(0);
int numberOfColumns = countNonEmptyColumns(sheet);
List<Object[]> rows = new ArrayList<Object[]>();
List<Object> rowData = new ArrayList<Object>();
for (Row row : sheet) {
if (isEmpty(row)) {
break;
} else {
rowData.clear();
for (int column = 0; column < numberOfColumns; column++) {
Cell cell = row.getCell(column);
rowData.add(objectFrom(workbook, cell));
}
rows.add(rowData.toArray());
}
}
return rows;
}
/**
* Gets the tableCellEditorComponent attribute of the SVTableCellEditor object
*
* @return The tableCellEditorComponent value
*/
public Component getTableCellEditorComponent(
JTable table, Object value, boolean isSelected, int row, int column) {
System.out.println("GetTableCellEditorComponent");
HSSFCell cell = (HSSFCell) value;
if (cell != null) {
HSSFCellStyle style = cell.getCellStyle();
HSSFFont f = wb.getFontAt(style.getFontIndex());
boolean isbold = f.getBoldweight() > HSSFFont.BOLDWEIGHT_NORMAL;
boolean isitalics = f.getItalic();
int fontstyle = Font.PLAIN;
if (isbold) fontstyle = Font.BOLD;
if (isitalics) fontstyle = fontstyle | Font.ITALIC;
int fontheight = f.getFontHeightInPoints();
if (fontheight == 9) fontheight = 10; // fix for stupid ol Windows
Font font = new Font(f.getFontName(), fontstyle, fontheight);
editor.setFont(font);
if (style.getFillPattern() == HSSFCellStyle.SOLID_FOREGROUND) {
editor.setBackground(getAWTColor(style.getFillForegroundColor(), white));
} else editor.setBackground(white);
editor.setForeground(getAWTColor(f.getColor(), black));
// Set the value that is rendered for the cell
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_BLANK:
editor.setText("");
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
if (cell.getBooleanCellValue()) {
editor.setText("true");
} else {
editor.setText("false");
}
break;
case HSSFCell.CELL_TYPE_NUMERIC:
editor.setText(Double.toString(cell.getNumericCellValue()));
break;
case HSSFCell.CELL_TYPE_STRING:
editor.setText(cell.getRichStringCellValue().getString());
break;
case HSSFCell.CELL_TYPE_FORMULA:
default:
editor.setText("?");
}
switch (style.getAlignment()) {
case HSSFCellStyle.ALIGN_LEFT:
case HSSFCellStyle.ALIGN_JUSTIFY:
case HSSFCellStyle.ALIGN_FILL:
editor.setHorizontalAlignment(SwingConstants.LEFT);
break;
case HSSFCellStyle.ALIGN_CENTER:
case HSSFCellStyle.ALIGN_CENTER_SELECTION:
editor.setHorizontalAlignment(SwingConstants.CENTER);
break;
case HSSFCellStyle.ALIGN_GENERAL:
case HSSFCellStyle.ALIGN_RIGHT:
editor.setHorizontalAlignment(SwingConstants.RIGHT);
break;
default:
editor.setHorizontalAlignment(SwingConstants.LEFT);
break;
}
}
return editor;
}