org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/uml2sd/drawings/impl/FontImpl.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.IFont;
  16 import org.eclipse.swt.graphics.Font;
  17 import org.eclipse.swt.graphics.FontData;
  18 import org.eclipse.swt.widgets.Display;
  19
  20 /**
  21  * Default implementation of the IFont interface.
  22  *
  23  * @version 1.0
  24  * @author sveyrier
  25  *
  26  */
  27 public class FontImpl implements IFont {
  28
  29     // ------------------------------------------------------------------------
  30     // Attributes
  31     // ------------------------------------------------------------------------
  32
  33     /**
  34      * The font object
  35      */
  36     private final Font fFont;
  37     /**
  38      * Flag to indicate that this object is managing the resource.
  39      */
  40     protected boolean fManageFont = true;
  41
  42     // ------------------------------------------------------------------------
  43     // Constructors
  44     // ------------------------------------------------------------------------
  45     /**
  46      * Default constructor.
  47      *
  48      * @param display The display to use
  49      * @param data A font data
  50      */
  51     public FontImpl(Display display, FontData data) {
  52         fFont = new Font(display, data);
  53     }
  54
  55     /**
  56      * Copy constructor
  57      *
  58      * @param value A font to copy.
  59      */
  60     protected FontImpl(Font value) {
  61         fFont = value;
  62         fManageFont = false;
  63     }
  64
  65     // ------------------------------------------------------------------------
  66     // Methods
  67     // ------------------------------------------------------------------------
  68
  69     /**
  70      * Returns a font implementation based system font.
  71      *
  72      * @return a font implementation based system font.
  73      */
  74     public static FontImpl getSystemFont() {
  75         return new FontImpl(Display.getDefault().getSystemFont());
  76     }
  77
  78     @Override
  79     public Object getFont() {
  80         return fFont;
  81     }
  82
  83     @Override
  84     public void dispose() {
  85         if (fFont != null) {
  86             fFont.dispose();
  87         }
  88     }
  89 }