src/share/demo/jfc/Metalworks/PropertiesMetalTheme.java

/*
 * Copyright (c) 1998, 1999, 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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 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 */


import javax.swing.plaf.*;
import javax.swing.plaf.metal.*;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.io.*;
import java.util.*;

/**
 * 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
 */
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());
        }

    }

    public String getName() { return name; }

    protected ColorUIResource getPrimary1() { return primary1; }
    protected ColorUIResource getPrimary2() { return primary2; }
    protected ColorUIResource getPrimary3() { return primary3; }

    protected ColorUIResource getSecondary1() { return secondary1; }
    protected ColorUIResource getSecondary2() { return secondary2; }
    protected ColorUIResource getSecondary3() { return secondary3; }

    protected ColorUIResource getBlack() { return black; }
    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);
    }
}