Example usage for org.apache.poi.hssf.converter AbstractExcelUtils getMergedRange

Introduction

In this page you can find the example usage for org.apache.poi.hssf.converter AbstractExcelUtils getMergedRange.

Prototype

public static CellRangeAddress getMergedRange(CellRangeAddress[][] mergedRanges, int rowNumber,
        int columnNumber)

Source Link

Usage

From source file:com.wangzhu.poi.ExcelToHtmlConverter.java

License:Apache License

/**
 * @return maximum 1-base index of column that were rendered, zero if none
 */// w  w w  .j  a  v  a2s .co m
protected int processRow(CellRangeAddress[][] mergedRanges, HSSFRow row, Element tableRowElement) {
    final HSSFSheet sheet = row.getSheet();
    final short maxColIx = row.getLastCellNum();
    if (maxColIx <= 0) {
        return 0;
    }

    final List emptyCells = new ArrayList(maxColIx);

    if (this.isOutputRowNumbers()) {
        Element tableRowNumberCellElement = this.htmlDocumentFacade.createTableHeaderCell();
        this.processRowNumber(row, tableRowNumberCellElement);
        emptyCells.add(tableRowNumberCellElement);
    }

    int maxRenderedColumn = 0;
    for (int colIx = 0; colIx < maxColIx; colIx++) {
        if (!this.isOutputHiddenColumns() && sheet.isColumnHidden(colIx)) {
            continue;
        }

        CellRangeAddress range = AbstractExcelUtils.getMergedRange(mergedRanges, row.getRowNum(), colIx);

        if ((range != null)
                && ((range.getFirstColumn() != colIx) || (range.getFirstRow() != row.getRowNum()))) {
            continue;
        }

        HSSFCell cell = row.getCell(colIx);

        int divWidthPx = 0;
        if (this.isUseDivsToSpan()) {
            divWidthPx = AbstractExcelConverter.getColumnWidth(sheet, colIx);

            boolean hasBreaks = false;
            for (int nextColumnIndex = colIx + 1; nextColumnIndex < maxColIx; nextColumnIndex++) {
                if (!this.isOutputHiddenColumns() && sheet.isColumnHidden(nextColumnIndex)) {
                    continue;
                }

                if ((row.getCell(nextColumnIndex) != null) && !this.isTextEmpty(row.getCell(nextColumnIndex))) {
                    hasBreaks = true;
                    break;
                }

                divWidthPx += AbstractExcelConverter.getColumnWidth(sheet, nextColumnIndex);
            }

            if (!hasBreaks) {
                divWidthPx = Integer.MAX_VALUE;
            }
        }

        Element tableCellElement = this.htmlDocumentFacade.createTableCell();

        if (range != null) {
            if (range.getFirstColumn() != range.getLastColumn()) {
                tableCellElement.setAttribute("colspan",
                        String.valueOf((range.getLastColumn() - range.getFirstColumn()) + 1));
            }
            if (range.getFirstRow() != range.getLastRow()) {
                tableCellElement.setAttribute("rowspan",
                        String.valueOf((range.getLastRow() - range.getFirstRow()) + 1));
            }
        }

        boolean emptyCell;
        if (cell != null) {
            emptyCell = this.processCell(cell, tableCellElement,
                    AbstractExcelConverter.getColumnWidth(sheet, colIx), divWidthPx, row.getHeight() / 20f);
        } else {
            emptyCell = true;
        }

        if (emptyCell) {
            emptyCells.add(tableCellElement);
        } else {
            for (Iterator iterator = emptyCells.iterator(); iterator.hasNext();) {
                Element emptyCellElement = (Element) iterator.next();
                tableRowElement.appendChild(emptyCellElement);
            }
            emptyCells.clear();

            tableRowElement.appendChild(tableCellElement);
            maxRenderedColumn = colIx;
        }
    }

    return maxRenderedColumn + 1;
}