/**
* Compute width of a column based on a subset of the rows and return the result
*
* @param sheet the sheet to calculate
* @param column 0-based index of the column
* @param useMergedCells whether to use merged cells
* @param firstRow 0-based index of the first row to consider (inclusive)
* @param lastRow 0-based index of the last row to consider (inclusive)
* @return the width in pixels
*/
public static double getColumnWidth(
Sheet sheet, int column, boolean useMergedCells, int firstRow, int lastRow) {
AttributedString str;
TextLayout layout;
Workbook wb = sheet.getWorkbook();
DataFormatter formatter = new DataFormatter();
Font defaultFont = wb.getFontAt((short) 0);
str = new AttributedString(String.valueOf(defaultChar));
copyAttributes(defaultFont, str, 0, 1);
layout = new TextLayout(str.getIterator(), fontRenderContext);
int defaultCharWidth = (int) layout.getAdvance();
double width = -1;
for (int rowIdx = firstRow; rowIdx <= lastRow; ++rowIdx) {
Row row = sheet.getRow(rowIdx);
if (row != null) {
Cell cell = row.getCell(column);
if (cell == null) {
continue;
}
double cellWidth = getCellWidth(cell, defaultCharWidth, formatter, useMergedCells);
width = Math.max(width, cellWidth);
}
}
return width;
}
