1 /*

     2  * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

     3  * All rights reserved.

     4  * This component and the accompanying materials are made available

     5  * under the terms of the License "Eclipse Public License v1.0"

     6  * which accompanies this distribution, and is available

     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8  *

     9  * Initial Contributors:

    10  * Nokia Corporation - initial contribution.

    11  *

    12  * Contributors:

    13  *

    14  * Description: 

    15  *

    16  */

    17 

    18 package com.nokia.carbide.cpp.pi.util;

    19 

    20 import org.eclipse.swt.graphics.RGB;

    21 

    22 /**

    23  * Class for managing all Color resource for PI

    24  * 

    25  */

    26 

    27 public class AWTColorPalette {

    28 

    29 	private static CacheMap<RGB, java.awt.Color> palette = new CacheMap<RGB, java.awt.Color>();

    30 	

    31 	private static AWTColorPalette colorPalette = null;

    32 

    33 	private AWTColorPalette() {

    34 		// private so we can't new ColorPalette

    35 		// user getInstance() to access this class

    36 	}

    37 	

    38 	public static AWTColorPalette getInstance() {

    39 		if (colorPalette == null)

    40 	    {

    41 	    	colorPalette = new AWTColorPalette();

    42 	    }

    43 	    return colorPalette;		

    44 	}

    45 

    46 	public static void add(RGB rgb) {

    47 		synchronized(palette) {

    48 			palette.put(new RGB(rgb.red, rgb.green, rgb.blue), new java.awt.Color(rgb.red, rgb.green, rgb.blue));

    49 		}

    50 	}

    51 

    52 	public static java.awt.Color getColor(RGB rgb) {

    53 		synchronized(palette) {

    54 			if (palette.get(rgb) == null) {

    55 				add(rgb);

    56 			}

    57 			return (java.awt.Color) palette.get(rgb);

    58 		}

    59 	}

    60 

    61 	public static int size() {

    62 		return palette.size();

    63 	}

    64 

    65 	public static void dispose() {

    66 		// CacheMap.dispose() is going to free up resource

    67 		palette.dispose();

    68 	}

    69 	

    70 	protected void finalize() {

    71 		palette.dispose();

    72 	}

    73 }