fr.opensagres.xdocreport.itext.extension.ExtendedPdfPTable Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of fr.opensagres.xdocreport.itext.extension Show documentation
The newest version!
/**
 * Copyright (C) 2011 Angelo Zerr  and Pascal Leclercq 
 *
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package fr.opensagres.xdocreport.itext.extension;

import com.lowagie.text.Element;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPRow;
import com.lowagie.text.pdf.PdfPTable;

public class ExtendedPdfPTable extends PdfPTable implements IITextContainer {

	private IITextContainer container;

	public ExtendedPdfPTable(int numColumns) {
		super(numColumns);
		// Ugly code to resolve this problem : When Paragraph is before
		// PDFTable, space before paragraph and table is
		// too little and paragraph content cut the table.
		// Add spacing before to resolve that.
		super.setSpacingBefore(5f);
	}

	public void addElement(Element element) {
		super.addCell((PdfPCell) element);
	}

	public IITextContainer getITextContainer() {
		return container;
	}

	public void setITextContainer(IITextContainer container) {
		this.container = container;
	}

	/**
	 * Gets the height of a particular row.
	 * 
	 * @param idx
	 *            the row index (starts at 0)
	 * @param firsttime
	 *            is this the first time the row heigh is calculated?
	 * @return the height of a particular row
	 * @since 3.0.0
	 */
	public float getRowHeight(int idx, boolean firsttime) {
		if (totalWidth <= 0 || idx < 0 || idx >= rows.size())
			return 0;
		PdfPRow row = (PdfPRow) rows.get(idx);
		if (row == null)
			return 0;
		if (firsttime)
			row.setWidths(absoluteWidths);
		float height = row.getMaxHeights();
		PdfPCell cell;
		PdfPRow tmprow;
		for (int i = 0; i < relativeWidths.length; i++) {
			if (!rowSpanAbove(idx, i))
				continue;
			int rs = 1;
			while (rowSpanAbove(idx - rs, i)) {
				rs++;
			}
			tmprow = (PdfPRow) rows.get(idx - rs);
			cell = tmprow.getCells()[i];
			float tmp = 0;
			// AZERR patch : sometimes cell is null????
			if (cell != null) {
				if (cell.getRowspan() == rs + 1) {
					tmp = cell.getMaxHeight();
					while (rs > 0) {
						tmp -= getRowHeight(idx - rs);
						rs--;
					}
				}
			}
			if (tmp > height)
				height = tmp;
		}
		row.setMaxHeights(height);
		return height;
	}

	/**
	 * Checks if there are rows above belonging to a rowspan.
	 * 
	 * @param currRow
	 *            the current row to check
	 * @param currCol
	 *            the current column to check
	 * @return true if there's a cell above that belongs to a rowspan
	 * @since 2.1.6
	 */
	boolean rowSpanAbove(int currRow, int currCol) {

		if ((currCol >= getNumberOfColumns()) || (currCol < 0)
				|| (currRow == 0))
			return false;

		int row = currRow - 1;
		PdfPRow aboveRow = (PdfPRow) rows.get(row);
		if (aboveRow == null)
			return false;
		PdfPCell aboveCell = (PdfPCell) aboveRow.getCells()[currCol];
		while ((aboveCell == null) && (row > 0)) {
			aboveRow = (PdfPRow) rows.get(--row);
			if (aboveRow == null)
				return false;
			aboveCell = (PdfPCell) aboveRow.getCells()[currCol];
		}

		int distance = currRow - row;

		if (aboveCell == null) {
			int col = currCol - 1;
			aboveCell = (PdfPCell) aboveRow.getCells()[col];
			while ((aboveCell == null) && (row > 0))
				aboveCell = (PdfPCell) aboveRow.getCells()[--col];
			return aboveCell != null && aboveCell.getRowspan() > distance;
		}

		if ((aboveCell.getRowspan() == 1) && (distance > 1)) {
			int col = currCol - 1;
			aboveRow = (PdfPRow) rows.get(row + 1);
			distance--;
			aboveCell = (PdfPCell) aboveRow.getCells()[col];
			while ((aboveCell == null) && (col > 0))
				aboveCell = (PdfPCell) aboveRow.getCells()[--col];
		}

		return aboveCell != null && aboveCell.getRowspan() > distance;
	}

}