com.sun.javafx.font.CompositeStrikeDisposer Maven / Gradle / Ivy
/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.javafx.font;
import java.lang.ref.WeakReference;
import com.sun.javafx.font.DisposerRecord;
import com.sun.javafx.font.FontResource;
import com.sun.javafx.font.FontStrikeDesc;
class CompositeStrikeDisposer implements DisposerRecord {
FontResource fontResource;
FontStrikeDesc desc;
boolean disposed = false;
public CompositeStrikeDisposer(FontResource font, FontStrikeDesc desc) {
this.fontResource = font;
this.desc = desc;
}
public synchronized void dispose() {
if (!disposed) {
// Careful here. The original strike we are collecting
// may now be superseded in the map, so only remove
// the desc if the value reference has been cleared
WeakReference ref = fontResource.getStrikeMap().get(desc);
if (ref != null) {
Object o = ref.get();
if (o == null) {
fontResource.getStrikeMap().remove(desc);
}
}
disposed = true;
}
}
}