org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/uml2sd/drawings/impl/ColorImpl.java

   1 /**********************************************************************
   2  * Copyright (c) 2005, 2013 IBM Corporation, Ericsson
   3  * All rights reserved.   This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM - Initial API and implementation
  10  *     Bernd Hufmann - Updated for TMF
  11  **********************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.impl;
  14
  15 import org.eclipse.linuxtools.tmf.ui.views.uml2sd.drawings.IColor;
  16 import org.eclipse.swt.graphics.Color;
  17 import org.eclipse.swt.widgets.Display;
  18
  19 /**
  20  * Default implementation of the IColor interface.
  21  *
  22  * @version 1.0
  23  * @author sveyrier
  24  *
  25  */
  26 public class ColorImpl implements IColor {
  27
  28     // ------------------------------------------------------------------------
  29     // Attributes
  30     // ------------------------------------------------------------------------
  31     /**
  32      * The color object.
  33      */
  34     private final Color fColor;
  35     /**
  36      * Flag to indicate that this object is managing the resource.
  37      */
  38     private boolean fManageColor = true;
  39
  40     // ------------------------------------------------------------------------
  41     // Constructors
  42     // ------------------------------------------------------------------------
  43     /**
  44      * Constructor
  45      *
  46      * @param display The display to use
  47      * @param r A value for red
  48      * @param g A value for green
  49      * @param b A value for blue
  50      */
  51     public ColorImpl(Display display, int r, int g, int b) {
  52         fColor = new Color(display, r, g, b);
  53     }
  54
  55     /**
  56      * Copy constructor
  57      *
  58      * @param color
  59      *            A color to copy
  60      */
  61     protected ColorImpl(Color color) {
  62         fColor = color;
  63         fManageColor = false;
  64     }
  65
  66     // ------------------------------------------------------------------------
  67     // Methods
  68     // ------------------------------------------------------------------------
  69
  70     /**
  71      * Returns a system color.
  72      *
  73      * @param color The color ID
  74      * @return a system color
  75      */
  76     public static ColorImpl getSystemColor(int color) {
  77         return new ColorImpl(Display.getDefault().getSystemColor(color));
  78     }
  79
  80     @Override
  81     public Object getColor() {
  82         return fColor;
  83     }
  84
  85     @Override
  86     public void dispose() {
  87         if ((fColor != null) && (fManageColor)) {
  88             fColor.dispose();
  89         }
  90     }
  91
  92 }