/*

 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/*

 * This source code is provided to illustrate the usage of a given feature

 * or technique and has been deliberately simplified. Additional steps

 * required for a production-quality application, such as security checks,

 * input validation and proper error handling, might not be present in

 * this sample code.

 */

import java.io.IOException;

import java.io.InputStream;

import java.util.Properties;

import java.util.StringTokenizer;

import javax.swing.plaf.ColorUIResource;

import javax.swing.plaf.metal.DefaultMetalTheme;

/**

 * This class allows you to load a theme from a file.

 * It uses the standard Java Properties file format.

 * To create a theme you provide a text file which contains

 * tags corresponding to colors of the theme along with a value

 * for that color.  For example:

 *

 * name=My Ugly Theme

 * primary1=255,0,0

 * primary2=0,255,0

 * primary3=0,0,255

 *

 * This class only loads colors from the properties file,

 * but it could easily be extended to load fonts -  or even icons.

 *

 * @author Steve Wilson

 * @author Alexander Kouznetsov

 */

public class PropertiesMetalTheme extends DefaultMetalTheme {

    private String name = "Custom Theme";

    private ColorUIResource primary1;

    private ColorUIResource primary2;

    private ColorUIResource primary3;

    private ColorUIResource secondary1;

    private ColorUIResource secondary2;

    private ColorUIResource secondary3;

    private ColorUIResource black;

    private ColorUIResource white;

    /**

     * pass an inputstream pointing to a properties file.

     * Colors will be initialized to be the same as the DefaultMetalTheme,

     * and then any colors provided in the properties file will override that.

     */

    public PropertiesMetalTheme(InputStream stream) {

        initColors();

        loadProperties(stream);

    }

    /**

     * Initialize all colors to be the same as the DefaultMetalTheme.

     */

    private void initColors() {

        primary1 = super.getPrimary1();

        primary2 = super.getPrimary2();

        primary3 = super.getPrimary3();

        secondary1 = super.getSecondary1();

        secondary2 = super.getSecondary2();

        secondary3 = super.getSecondary3();

        black = super.getBlack();

        white = super.getWhite();

    }

    /**

     * Load the theme name and colors from the properties file

     * Items not defined in the properties file are ignored

     */

    private void loadProperties(InputStream stream) {

        Properties prop = new Properties();

        try {

            prop.load(stream);

        } catch (IOException e) {

            System.out.println(e);

        }

        Object tempName = prop.get("name");

        if (tempName != null) {

            name = tempName.toString();

        }

        Object colorString = null;

        colorString = prop.get("primary1");

        if (colorString != null) {

            primary1 = parseColor(colorString.toString());

        }

        colorString = prop.get("primary2");

        if (colorString != null) {

            primary2 = parseColor(colorString.toString());

        }

        colorString = prop.get("primary3");

        if (colorString != null) {

            primary3 = parseColor(colorString.toString());

        }

        colorString = prop.get("secondary1");

        if (colorString != null) {

            secondary1 = parseColor(colorString.toString());

        }

        colorString = prop.get("secondary2");

        if (colorString != null) {

            secondary2 = parseColor(colorString.toString());

        }

        colorString = prop.get("secondary3");

        if (colorString != null) {

            secondary3 = parseColor(colorString.toString());

        }

        colorString = prop.get("black");

        if (colorString != null) {

            black = parseColor(colorString.toString());

        }

        colorString = prop.get("white");

        if (colorString != null) {

            white = parseColor(colorString.toString());

        }

    }

    @Override

    public String getName() {

        return name;

    }

    @Override

    protected ColorUIResource getPrimary1() {

        return primary1;

    }

    @Override

    protected ColorUIResource getPrimary2() {

        return primary2;

    }

    @Override

    protected ColorUIResource getPrimary3() {

        return primary3;

    }

    @Override

    protected ColorUIResource getSecondary1() {

        return secondary1;

    }

    @Override

    protected ColorUIResource getSecondary2() {

        return secondary2;

    }

    @Override

    protected ColorUIResource getSecondary3() {

        return secondary3;

    }

    @Override

    protected ColorUIResource getBlack() {

        return black;

    }

    @Override

    protected ColorUIResource getWhite() {

        return white;

    }

    /**

     * parse a comma delimited list of 3 strings into a Color

     */

    private ColorUIResource parseColor(String s) {

        int red = 0;

        int green = 0;

        int blue = 0;

        try {

            StringTokenizer st = new StringTokenizer(s, ",");

            red = Integer.parseInt(st.nextToken());

            green = Integer.parseInt(st.nextToken());

            blue = Integer.parseInt(st.nextToken());

        } catch (Exception e) {

            System.out.println(e);

            System.out.println("Couldn't parse color :" + s);

        }

        return new ColorUIResource(red, green, blue);

    }

}