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DynamicReports is an open source Java reporting library based on JasperReports. It allows to create dynamic report designs and it doesn't need a visual report designer. You can very quickly create reports and produce documents that can be displayed, printed or exported into many popular formats such as PDF, Excel, Word and others.

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/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2016 Ricardo Mariaca
 * http://www.dynamicreports.org
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with DynamicReports. If not, see .
 */

package net.sf.dynamicreports.report.base.grid;

import java.util.ArrayList;
import java.util.List;

import net.sf.dynamicreports.report.constant.Constants;
import net.sf.dynamicreports.report.constant.HorizontalCellComponentAlignment;
import net.sf.dynamicreports.report.constant.ListType;
import net.sf.dynamicreports.report.constant.VerticalCellComponentAlignment;
import net.sf.dynamicreports.report.definition.grid.DRIColumnGridComponent;
import net.sf.dynamicreports.report.definition.grid.DRIColumnGridList;

import org.apache.commons.lang3.Validate;

/**
 * @author Ricardo Mariaca ([email protected])
 */
public class DRColumnGridList implements DRIColumnGridList {
	private static final long serialVersionUID = Constants.SERIAL_VERSION_UID;

	private List listCells;
	private ListType type;
	private int gap;

	public DRColumnGridList() {
		this(ListType.HORIZONTAL);
	}

	public DRColumnGridList(ListType type) {
		setType(type);
		this.listCells = new ArrayList();
	}

	@Override
	public List getListCells() {
		return listCells;
	}

	public void addComponent(DRIColumnGridComponent component) {
		listCells.add(new DRColumnGridListCell(component));
	}

	public void addCell(DRColumnGridListCell cell) {
		Validate.notNull(cell, "cell must not be null");
		listCells.add(cell);
	}

	public void addComponent(HorizontalCellComponentAlignment horizontalAlignment, VerticalCellComponentAlignment verticalAlignment, DRIColumnGridComponent component) {
		listCells.add(new DRColumnGridListCell(horizontalAlignment, verticalAlignment, component));
	}

	public void setType(ListType type) {
		Validate.notNull(type, "type must not be null");
		this.type = type;
	}

	@Override
	public ListType getType() {
		return type;
	}

	@Override
	public int getGap() {
		return gap;
	}

	public void setGap(int gap) {
		Validate.notNull(gap < 0, "gap must be >= 0");
		this.gap = gap;
	}
}