1 /*
   2  * Copyright (c) 2009, 2013, 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 com.sun.scenario.effect.impl.prism;
  27 
  28 import java.util.Map;
  29 import java.util.WeakHashMap;
  30 import com.sun.glass.ui.Screen;
  31 import com.sun.scenario.effect.FilterContext;
  32 
  33 public class PrFilterContext extends FilterContext {
  34 
  35     private static Screen defaultScreen;
  36     private static final Map<Screen, PrFilterContext> ctxMap =
  37         new WeakHashMap<Screen, PrFilterContext>();
  38 
  39     private static PrFilterContext printerFilterContext = null;
  40     public static PrFilterContext getPrinterContext(Object resourceFactory) {
  41         if (printerFilterContext == null) {
  42             // Parameter is returned by FilterContext.getReferent()
  43             printerFilterContext = new PrFilterContext(resourceFactory);
  44         }
  45         return printerFilterContext;
  46     }
  47 
  48     private PrFilterContext(Object screen) {
  49         super(screen);
  50     }
  51 
  52     public static PrFilterContext getInstance(Screen screen) {
  53         if (screen == null) {
  54             throw new IllegalArgumentException("Screen must be non-null");
  55         }
  56         PrFilterContext fctx = ctxMap.get(screen);
  57         if (fctx == null) {
  58             fctx = new PrFilterContext(screen);
  59             ctxMap.put(screen, fctx);
  60         }
  61         return fctx;
  62     }
  63 
  64     public static PrFilterContext getDefaultInstance() {
  65         if (defaultScreen == null) {
  66             // NOTE: filter context may need to sign up for screen set config
  67             // changes
  68             defaultScreen = Screen.getMainScreen();
  69         }
  70         return getInstance(defaultScreen);
  71     }
  72 }