Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.app.gui.styling;

import java.awt.Color;

import java.awt.Component;

import java.awt.Dimension;

import java.awt.GradientPaint;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.File;

import java.util.ArrayList;

import java.util.List;

import javax.swing.JComboBox;

import javax.swing.JComponent;

import javax.swing.JList;

import javax.swing.ListCellRenderer;

import org.gvsig.gui.ColorTablePainter;

import org.gvsig.i18n.Messages;

import org.gvsig.symbology.swing.SymbologySwingLocator;

/**

 * Creates a JComboBox where the user has the option to select different

 * colors.

 *

 * @autor jaume dominguez faus - jaume.dominguez@iver.es

 */

public class JComboBoxColorScheme extends JComboBox {

        /**

         * 

         */

        private static final long serialVersionUID = -749998859270723991L;

        private String palettesPath = System.getProperty("user.home") +

        File.separator +

        "gvSIG" +

        File.separator +

        "ColorSchemes";

//        private boolean interpolated = false;

        private List<ColorTablePainter> colorTables = new ArrayList<ColorTablePainter>();

        private ActionListener innerActionUpdateTooltip = new ActionListener() {

                public void actionPerformed(ActionEvent e) {

                        ColorTablePainter colorTable = (ColorTablePainter)getSelectedItem();

                        if (colorTable != null) {

                                setToolTipText(colorTable.getTableName());

                        } else {

                                setToolTipText(Messages.getText("select_a_color_scheme"));

                        }

                }

        };

        /**

         * Constructor method

         *

         * @param interpolateValues

         */

        public JComboBoxColorScheme(boolean interpolateValues) {

                super();

//                interpolated = interpolateValues;

                setPreferredSize(new Dimension(150, 20));

                List<ColorTablePainter> colorTables = SymbologySwingLocator.getSwingManager().createColorTables();

                if(colorTables != null){

                        for (int i=0; i<colorTables.size(); i++) {

                                ColorTablePainter colorTable = colorTables.get(i);

//                                ArrayList array = new ArrayList();

//                                array.add(colorTable.getTableName());

//                                array.add(colorTable);

//                                addItem(array);

                                addItem(colorTable);

                        }

                        addActionListener(innerActionUpdateTooltip);

                        setRenderer(new ListCellRenderer() {

                                public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {

                                        ColorTablePainter colorTable = (ColorTablePainter) value;

                                        ColorSchemeItemPainter paintItem = new ColorSchemeItemPainter(colorTable.getTableName(), colorTable, isSelected);

                                        paintItem.setPreferredSize(getPreferredSize());

                                        return paintItem;

                                }

                        });

                }

        }

        /**

         * Returns an array composed with the selected colors

         * @return

         */

        public Color[] getSelectedColors() {

                ColorTablePainter colorTable = (ColorTablePainter) getSelectedItem();

                if (colorTable == null) {

                        return null;

                }

                return colorTable.getColors();

        }

        public void setSelectedColors(Color[] colors) {

                colorTables.clear();

                if (colors == null) {

                        setSelectedIndex(0);

                        return;

                } else {

                        for (int i = 0; i < getItemCount(); i++) {

                                colorTables.add((ColorTablePainter) getItemAt(i));

                        }

                        for (int i = 0; i < colorTables.size(); i++) {

                                ColorTablePainter colorTable = colorTables.get(i);

                                Color[] myColors = colorTable.getColors();

                                boolean isEqual = true;

                                if(myColors.length == colors.length) {

                                        for (int j = 0; isEqual && j < myColors.length; j++) {

                                                Color c1 = myColors[j];

                                                Color c2 = colors[j];

                                                isEqual = c1.getRGB() == c2.getRGB() && c1.getAlpha() == c2.getAlpha();

                                        }

                                        if(isEqual) {

                                                setSelectedIndex(i);

                                                repaint();

                                                return;

                                        }

                                }

                        }

                        if(getItemCount()> 0) {

                                setSelectedItem(0);

                        }

                }

        }

        private class ColorSchemeItemPainter extends JComponent {

                private static final long serialVersionUID = -6448740563809113949L;

                private boolean isSelected = false;

                private ColorTablePainter colorTablePaint = null;

                /**

                 * Constructor method

                 *

                 * @param name

                 * @param colorTablePaint

                 * @param isSelected

                 */

                public ColorSchemeItemPainter(String name, ColorTablePainter colorTablePaint, boolean isSelected) {

                        super();

                        this.colorTablePaint = colorTablePaint;

                        this.isSelected = isSelected;

                        setToolTipText(name);

                }

                public void paintComponent(Graphics g) {

                        Graphics2D g2 = (Graphics2D) g;

                        if (isSelected) {

                                Color color1 = new Color(89, 153, 229);

                                Color color2 = new Color(31, 92, 207);

                                g2.setPaint(new GradientPaint(0, 1, color1, 0, getHeight() - 1, color2, false));

                                g2.fillRect(0, 1, getWidth(), getHeight() - 1);

                                g2.setColor(new Color(61, 123, 218));

                                g2.drawLine(0, 0, getWidth(), 0);

                                g2.setColor(Color.white);

                        } else {

                                g2.setColor(Color.white);

                                g2.fillRect(0, 0, getWidth(), getHeight());

                                g2.setColor(Color.black);

                        }

                        colorTablePaint.paint(g2, isSelected);

                }

        }

}