javafx.css.converter.StringConverter Maven / Gradle / Ivy
/*
* Copyright (c) 2011, 2021, 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 javafx.css.converter;
import com.sun.javafx.util.Utils;
import javafx.css.ParsedValue;
import javafx.css.StyleConverter;
import javafx.scene.text.Font;
/**
* Converter for quoted strings which may have embedded unicode characters.
* @since 9
*/
public final class StringConverter extends StyleConverter {
// lazy, thread-safe instatiation
private static class Holder {
static final StringConverter INSTANCE = new StringConverter();
static final SequenceConverter SEQUENCE_INSTANCE = new SequenceConverter();
}
/**
* Get the {@code StringConverter} instance.
* @return the {@code StringConverter} instance
*/
public static StyleConverter getInstance() {
return Holder.INSTANCE;
}
private StringConverter() {
super();
}
@Override
public String convert(ParsedValue value, Font font) {
String string = value.getValue();
if (string == null) {
return null;
} // escaping for those
return Utils.convertUnicode(string);
}
@Override
public String toString() {
return "StringConverter";
}
/**
* Converter to convert a sequence of {@code String}s to an array of {@code String}s.
*
* @since 9
*/
public static final class SequenceConverter extends StyleConverter[], String[]> {
/**
* Get the {@code SequenceConverter} instance.
* @return the {@code SequenceConverter} instance
*/
public static SequenceConverter getInstance() {
return Holder.SEQUENCE_INSTANCE;
}
private SequenceConverter() {
super();
}
@Override
public String[] convert(ParsedValue[], String[]> value, Font font) {
ParsedValue[] layers = value.getValue();
String[] strings = new String[layers.length];
for (int layer = 0; layer < layers.length; layer++) {
strings[layer] = StringConverter.getInstance().convert(layers[layer], font);
}
return strings;
}
@Override
public String toString() {
return "String.SequenceConverter";
}
}
}