| /* |
| |
| 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. |
| |
| */ |
| package org.apache.batik.parser; |
| |
| import java.util.LinkedList; |
| |
| /** |
| * A handler class that generates an array of floats from parsing a |
| * number list or a point list. |
| * |
| * @author <a href="mailto:cam%40mcc%2eid%2eau">Cameron McCormack</a> |
| * @version $Id$ |
| */ |
| public class FloatArrayProducer |
| extends DefaultNumberListHandler |
| implements PointsHandler { |
| |
| /** |
| * List of <code>float[]</code> objects. |
| */ |
| protected LinkedList as; |
| |
| /** |
| * The current <code>float[]</code> object. |
| */ |
| protected float[] a; |
| |
| /** |
| * The index in which to store the next number. |
| */ |
| protected int index; |
| |
| /** |
| * The total number of floats accumulated. |
| */ |
| protected int count; |
| |
| /** |
| * Returns the array of floats accumulated. |
| */ |
| public float[] getFloatArray() { |
| return a; |
| } |
| |
| // NumberListHandler ///////////////////////////////////////////////////// |
| |
| /** |
| * Invoked when the number list attribute starts. |
| * @exception ParseException if an error occures while processing the |
| * number list. |
| */ |
| public void startNumberList() throws ParseException { |
| as = new LinkedList(); |
| a = new float[11]; |
| count = 0; |
| index = 0; |
| } |
| |
| /** |
| * Invoked when a float value has been parsed. |
| * @exception ParseException if an error occures while processing |
| * the number |
| */ |
| public void numberValue(float v) throws ParseException { |
| if (index == a.length) { |
| as.add(a); |
| a = new float[a.length * 2 + 1]; |
| index = 0; |
| } |
| a[index++] = v; |
| count++; |
| } |
| |
| /** |
| * Invoked when the number list attribute ends. |
| * @exception ParseException if an error occures while processing the |
| * number list. |
| */ |
| public void endNumberList() throws ParseException { |
| float[] all = new float[count]; |
| int pos = 0; |
| for (Object a1 : as) { |
| float[] b = (float[]) a1; |
| System.arraycopy(b, 0, all, pos, b.length); |
| pos += b.length; |
| } |
| System.arraycopy(a, 0, all, pos, index); |
| as.clear(); |
| a = all; |
| } |
| |
| // PointsHandler ///////////////////////////////////////////////////////// |
| |
| /** |
| * Implements {@link PointsHandler#startPoints()}. |
| */ |
| public void startPoints() throws ParseException { |
| startNumberList(); |
| } |
| |
| /** |
| * Implements {@link PointsHandler#point(float,float)}. |
| */ |
| public void point(float x, float y) throws ParseException { |
| numberValue(x); |
| numberValue(y); |
| } |
| |
| /** |
| * Implements {@link PointsHandler#endPoints()}. |
| */ |
| public void endPoints() throws ParseException { |
| endNumberList(); |
| } |
| } |