87 lines
2.6 KiB
Java
87 lines
2.6 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @author Ilya S. Okomin
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* @version $Revision$
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*/
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package java.awt.font;
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import java.awt.geom.AffineTransform;
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import java.io.Serializable;
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import org.apache.harmony.awt.internal.nls.Messages;
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/**
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* The TransformAttribute class is a wrapper for the AffineTransform class in
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* order to use it as attribute.
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*
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* @since Android 1.0
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*/
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public final class TransformAttribute implements Serializable {
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/**
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* The Constant serialVersionUID.
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*/
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private static final long serialVersionUID = 3356247357827709530L;
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// affine transform of this TransformAttribute instance
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/**
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* The transform.
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*/
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private AffineTransform fTransform;
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/**
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* Instantiates a new TransformAttribute from the specified AffineTransform.
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*
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* @param transform
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* the AffineTransform to be wrapped.
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*/
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public TransformAttribute(AffineTransform transform) {
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if (transform == null) {
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// awt.94=transform can not be null
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throw new IllegalArgumentException(Messages.getString("awt.94")); //$NON-NLS-1$
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}
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if (!transform.isIdentity()) {
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this.fTransform = new AffineTransform(transform);
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}
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}
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/**
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* Gets the initial AffineTransform which is wrapped.
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*
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* @return the initial AffineTransform which is wrapped.
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*/
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public AffineTransform getTransform() {
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if (fTransform != null) {
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return new AffineTransform(fTransform);
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}
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return new AffineTransform();
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}
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/**
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* Checks if this transform is an identity transform.
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*
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* @return true, if this transform is an identity transform, false
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* otherwise.
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*/
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public boolean isIdentity() {
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return (fTransform == null);
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}
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}
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