1 /*
   2  * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.java2d.cmm;
  27 
  28 import java.util.Vector;
  29 
  30 
  31 /**
  32  * A class to manage the deferral of CMM initialization of profile
  33  * data for internal ICC_Profile objects - i.e. when we "trust" that
  34  * the profile data is valid and we think it may not be needed.  An
  35  * example is the sRGB profile which gets loaded by any program doing
  36  * graphics, but which may not be needed if the program does not need
  37  * high quality color conversion.
  38  */
  39 public class ProfileDeferralMgr {
  40 
  41     public static boolean deferring = true;
  42     private static Vector aVector;
  43 
  44     /**
  45      * Records a ProfileActivator object whose activate method will
  46      * be called if the CMM needs to be activated.
  47      */
  48     public static void registerDeferral(ProfileActivator pa) {
  49 
  50         if (!deferring) {
  51             return;
  52         }
  53         if (aVector == null) {
  54             aVector = new Vector(3, 3);
  55         }
  56         aVector.addElement(pa);
  57         return;
  58     }
  59 
  60 
  61     /**
  62      * Removes a ProfileActivator object from the vector of ProfileActivator
  63      * objects whose activate method will be called if the CMM needs to be
  64      * activated.
  65      */
  66     public static void unregisterDeferral(ProfileActivator pa) {
  67 
  68         if (!deferring) {
  69             return;
  70         }
  71         if (aVector == null) {
  72             return;
  73         }
  74         aVector.removeElement(pa);
  75         return;
  76     }
  77 
  78     /**
  79      * Removes a ProfileActivator object from the vector of ProfileActivator
  80      * objects whose activate method will be called if the CMM needs to be
  81      * activated.
  82      */
  83     public static void activateProfiles() {
  84 
  85         int i, n;
  86 
  87         deferring = false;
  88         if (aVector == null) {
  89             return;
  90         }
  91         n = aVector.size();
  92         for (i = 0; i < n; i++) {
  93             ((ProfileActivator) aVector.get(i)).activate();
  94         }
  95         aVector.removeAllElements();
  96         aVector = null;
  97         return;
  98     }
  99 
 100 }