/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* $Id$ */ package org.apache.fop.render.intermediate; import java.awt.geom.AffineTransform; import java.io.Reader; import java.util.List; import org.apache.batik.parser.ParseException; import org.apache.batik.parser.TransformListHandler; import org.apache.batik.parser.TransformListParser; /** * This class parses a sequence of transformations into an array of {@link AffineTransform} * instances. */ public class AffineTransformArrayParser implements TransformListHandler { private static final AffineTransform[] EMPTY_ARRAY = new AffineTransform[0]; private List transforms; /** * Utility method for creating an AffineTransform array. * @param r The reader used to read the transform specification. * @return the AffineTransform array * @throws ParseException if there's a parse error */ public static AffineTransform[] createAffineTransform(Reader r) throws ParseException { TransformListParser p = new TransformListParser(); AffineTransformArrayParser th = new AffineTransformArrayParser(); p.setTransformListHandler(th); p.parse(r); return th.getAffineTransforms(); } /** * Utility method for creating an AffineTransform. * @param s The transform specification. * @return the AffineTransform array * @throws ParseException if there's a parse error */ public static AffineTransform[] createAffineTransform(String s) throws ParseException { if (s == null) { return EMPTY_ARRAY; } TransformListParser p = new TransformListParser(); AffineTransformArrayParser th = new AffineTransformArrayParser(); p.setTransformListHandler(th); p.parse(s); return th.getAffineTransforms(); } /** * Returns the AffineTransform array initialized during the last parsing. * @return the array or null if this handler has not been used by * a parser. */ public AffineTransform[] getAffineTransforms() { if (this.transforms == null) { return null; } else { int count = this.transforms.size(); return (AffineTransform[])this.transforms.toArray(new AffineTransform[count]); } } /** {@inheritDoc} */ public void startTransformList() throws ParseException { this.transforms = new java.util.ArrayList(); } /** {@inheritDoc} */ public void matrix(float a, float b, float c, float d, float e, float f) throws ParseException { this.transforms.add(new AffineTransform(a, b, c, d, e, f)); } /** {@inheritDoc} */ public void rotate(float theta) throws ParseException { this.transforms.add(AffineTransform.getRotateInstance(Math.toRadians(theta))); } /** {@inheritDoc} */ public void rotate(float theta, float cx, float cy) throws ParseException { AffineTransform at = AffineTransform.getRotateInstance(Math.toRadians(theta), cx, cy); this.transforms.add(at); } /** {@inheritDoc} */ public void translate(float tx) throws ParseException { AffineTransform at = AffineTransform.getTranslateInstance(tx, 0); this.transforms.add(at); } /** {@inheritDoc} */ public void translate(float tx, float ty) throws ParseException { AffineTransform at = AffineTransform.getTranslateInstance(tx, ty); this.transforms.add(at); } /** {@inheritDoc} */ public void scale(float sx) throws ParseException { this.transforms.add(AffineTransform.getScaleInstance(sx, sx)); } /** {@inheritDoc} */ public void scale(float sx, float sy) throws ParseException { this.transforms.add(AffineTransform.getScaleInstance(sx, sy)); } /** {@inheritDoc} */ public void skewX(float skx) throws ParseException { this.transforms.add (AffineTransform.getShearInstance(Math.tan(Math.toRadians(skx)), 0)); } /** {@inheritDoc} */ public void skewY(float sky) throws ParseException { this.transforms.add (AffineTransform.getShearInstance(0, Math.tan(Math.toRadians(sky)))); } /** {@inheritDoc} */ public void endTransformList() throws ParseException { } } e/?h=V1_8_12&id=1eab1ab1d16da7a243e6712fb051efef3161075d'>root/aspectj5rt/.classpath
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