/*
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat 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, or (at your
 * option) any later version.
 *
 * Thermostat 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 Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code 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 code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.client.ui;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.GridLayout;

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;

/**
 * Display the {@link Palette}
 */
public class PaletteDisplayTool {

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                JFrame mainWindow = new JFrame();
                mainWindow.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

                JPanel colorGrid = new JPanel(new GridLayout(0, 2));

                for (Palette p : Palette.values()) {
                    colorGrid.add(new ColorBox(p.getColor()));
                    colorGrid.add(new JLabel(p.name()));
                }

                JScrollPane scrollPane = new JScrollPane(colorGrid);

                mainWindow.add(scrollPane, BorderLayout.CENTER);

                mainWindow.pack();
                mainWindow.setVisible(true);
            }
        });
    }

    private static class ColorBox extends JComponent {

        private Color color;

        public ColorBox(Color color) {
            this.color = color;
        }

        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);

            g = g.create();
            g.setColor(color);
            g.fillRect(0, 0, getWidth(), getHeight());
            g.dispose();
        }
    }
}