/* ArrayOfAtoms.java
 * =========================================================================
 * This file is part of the JLaTeXMath Library - http://forge.scilab.org/jlatexmath
 *
 * Copyright (C) 2009-2010 DENIZET Calixte
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * A copy of the GNU General Public License can be found in the file
 * LICENSE.txt provided with the source distribution of this program (see
 * the META-INF directory in the source jar). This license can also be
 * found on the GNU website at http://www.gnu.org/licenses/gpl.html.
 *
 * If you did not receive a copy of the GNU General Public License along
 * with this program, contact the lead developer, or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * Linking this library statically or dynamically with other modules 
 * is making a combined work based on this library. Thus, the terms 
 * and conditions of the GNU General Public License cover the whole 
 * combination.
 * 
 * As a special exception, the copyright holders of this library give you 
 * permission to link this library with independent modules to produce 
 * an executable, regardless of the license terms of these independent 
 * modules, and to copy and distribute the resulting executable under terms 
 * of your choice, provided that you also meet, for each linked independent 
 * module, the terms and conditions of the license of that module. 
 * An independent module is a module which is not derived from or based 
 * on this library. If you modify this library, you may extend this exception 
 * to your version of the library, but you are not obliged to do so. 
 * If you do not wish to do so, delete this exception statement from your 
 * version.
 * 
 */

package com.himamis.retex.renderer.share;

import java.util.LinkedList;

import com.himamis.retex.renderer.share.platform.graphics.Color;

public class ArrayOfAtoms extends TeXFormula {

	private LinkedList<LinkedList<Atom>> array;
	private LinkedList<LinkedList<Color>> colors;
	public int col, row;

	public ArrayOfAtoms() {
		super();
		array = new LinkedList<LinkedList<Atom>>();
		colors = new LinkedList<LinkedList<Color>>();
		array.add(new LinkedList<Atom>());
		row = 0;
	}

	public void addCol() {
		array.get(row).add(root);
		root = null;
	}

	public void addCol(int n) {
		array.get(row).add(root);
		for (int i = 1; i < n - 1; i++) {
			array.get(row).add(null);
		}
		root = null;
	}

	public void addRow() {
		addCol();
		array.add(new LinkedList<Atom>());
		row++;
	}

	public int getRows() {
		return row;
	}

	public int getCols() {
		return col;
	}

	public VRowAtom getAsVRow() {
		VRowAtom vr = new VRowAtom();
		vr.setAddInterline(true);
		for (LinkedList<Atom> r : array) {
			for (Atom a : r) {
				vr.append(a);
			}
		}

		return vr;
	}

	public void checkDimensions() {
		if (array.getLast().size() != 0) {
			addRow();
		} else if (root != null) {
			addRow();
		}

		row = array.size() - 1;
		col = array.get(0).size();

		for (int i = 1; i < row; i++) {
			if (array.get(i).size() > col) {
				col = array.get(i).size();
			}
		}

		/*
		 * Thanks to Juan Enrique Escobar Robles for this patch which let the user have empty
		 * columns
		 */
		for (int i = 0; i < row; i++) {
			int j = array.get(i).size();
			if (j != col && array.get(i).get(0) != null
					&& array.get(i).get(0).type != TeXConstants.TYPE_INTERTEXT) {
				LinkedList<Atom> r = array.get(i);
				for (; j < col; j++) {
					r.add(null);
				}
			}
		}
	}

	public LinkedList<Atom> get(int row) {
		return array.get(row);
	}
	public Atom get(int i, int j) {
		return array.get(i).get(j);
	}

	public Color getColor(int i, int j) {
		if (colors.size() <= i) {
			return null;
		}
		if (colors.get(i).size() <= j) {
			return null;
		}
		return colors.get(i).get(j);
	}

	public void cellColor(Color color) {
		while (colors.size() < row + 1) {
			colors.add(new LinkedList<Color>());
		}
		while (colors.get(row).size() < array.get(row).size() + 1) {
			colors.get(row).add(null);
		}
		colors.get(row).set(array.get(row).size(), color);
	}
}