| gvSIG desktop 1

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.

 *

 * 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.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 */

package org.gvsig.raster.datastruct;

import java.awt.Color;

import java.util.ArrayList;

import org.gvsig.raster.BaseTestCase;

/**

 * Test para comprobar el funcionamiento de las tablas de color.

 * @version 12/05/2008

 * @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)

 */

public class TestColorTable extends BaseTestCase {

        private String baseDir = "./test-images/";

        private String path = baseDir + "gifTransparente.gif";

        protected void doSetUp() throws Exception {

                super.doSetUp();

                System.err.println("TestColorTable running...");

        }

        public void testStack() {

                dataTest1();

                dataTest2();

        }

        /**

         * Compara un array de bytes con sus respectivos valores de color

         * @param item

         * @param red

         * @param green

         * @param blue

         * @param alpha

         */

        private void compareColor(byte[] item, int red, int green, int blue, int alpha) {

                assertEquals((item[0] & 0xff), red);

                assertEquals((item[1] & 0xff), green);

                assertEquals((item[2] & 0xff), blue);

                assertEquals((item[3] & 0xff), alpha);

        }

        /**

         * Comprueba la tabla de color de una imagen existente

         */

        private void dataTest1() {

                open(path);

                ColorTable table = dataset.getColorTables()[0];

                compareColor(table.getColorTableByBand()[0],  255, 255, 255,   0);

                compareColor(table.getColorTableByBand()[1],    0,   0,   0, 255);

                compareColor(table.getColorTableByBand()[2],    0, 102, 255, 255);

                compareColor(table.getColorTableByBand()[3],    0, 153, 255, 255);

                compareColor(table.getColorTableByBand()[4],    0,   0, 255, 255);

                compareColor(table.getColorTableByBand()[5],    0,  51, 255, 255);

                compareColor(table.getColorTableByBand()[6],   55,  55, 255, 255);

                compareColor(table.getColorTableByBand()[7],    0, 204, 255, 255);

                compareColor(table.getColorTableByBand()[8],  191, 191, 255, 255);

                compareColor(table.getColorTableByBand()[9],  191, 242, 255, 255);

                compareColor(table.getColorTableByBand()[10], 223, 223, 223, 255);

                compareColor(table.getColorTableByBand()[11], 127, 127, 127, 255);

                compareColor(table.getColorTableByBand()[12],  63,  63,  63, 255);

                compareColor(table.getColorTableByBand()[13], 159, 159, 159, 255);

                compareColor(table.getColorTableByBand()[14],  31,  31,  31, 255);

                compareColor(table.getColorTableByBand()[15],  95,  95,  95, 255);

                compareColor(table.getColorTableByBand()[16], 191, 191, 191, 255);

        }

        /**

         * Comprueba una tabla de color creada a mano

         */

        private void dataTest2() {

                ColorTable table = new ColorTable("dataTest2");

                ArrayList list = new ArrayList();

                ColorItem item = new ColorItem();

                item.setValue(0.0f);

                item.setColor(Color.black);

                list.add(item);

                item = new ColorItem();

                item.setValue(10.0f);

                item.setColor(Color.white);

                list.add(item);

                item = new ColorItem();

                item.setValue(20.0f);

                item.setColor(Color.red);

                list.add(item);

                table.createPaletteFromColorItems(list, false);

                table.setInterpolated(false);

                compareColor(table.getRGBAByBand(0.0f),    0,   0,   0, 255);

                compareColor(table.getRGBAByBand(10.0f), 255, 255, 255, 255);

                compareColor(table.getRGBAByBand(20.0f), 255,   0,   0, 255);

        }

}